WO2018103669A1

WO2018103669A1 - High-pressure cleaning machine and high-pressure cleaning machine assembly

Info

Publication number: WO2018103669A1
Application number: PCT/CN2017/114847
Authority: WO
Inventors: 乔勇
Original assignee: 苏州宝时得电动工具有限公司
Priority date: 2016-12-06
Filing date: 2017-12-06
Publication date: 2018-06-14

Abstract

Provided are a high-pressure cleaning machine and an assembly thereof, the high-pressure cleaning machine (1) comprising: a housing (10), comprising a base (191) provided with a butting surface (1911); a housing terminal (192), being connected to the base (191); and a functional unit, comprising an electric motor (2) arranged in the housing (10) and a pump (4) for delivering a water flow outwards. The high-pressure cleaning machine (1) can be electrically connected to a battery pack (9); the battery pack (9) comprises a matching surface (921) butting and matching the butting surface (1911), and a plurality of battery pack terminals electrically connected to the housing terminal (192); the high-pressure cleaning machine (1) is in plug-in fit with the battery pack (9) to form a butting cavity for electrical connection between the housing terminal (192) and the battery pack terminals; the butting cavity is optionally configured on the high-pressure cleaning machine (1) or the battery pack (9); the high-pressure cleaning machine (1) is configured with a seal structure; and when the battery pack (9) is in plug-in fit with the high-pressure cleaning machine (1), the seal structure can seal the butting cavity.

Description

High pressure cleaner and high pressure cleaner assembly

Technical field

Embodiments of the present disclosure relate to a high pressure cleaner and a high pressure washer assembly, and more particularly to a seal between a housing of a high pressure cleaner and a battery pack.

Background technique

Cleaning needs have been widespread in both family and outdoor activities.

In family life centered on the family courtyard, people often need to clean balconies, walkways, outdoor tables and chairs, barbecues, cars, bicycles, garages, pets, garden tools, windows, swimming pools, outdoor steps, and so on. These items are located outside the house due to the use of the scene, and will inevitably be stained with dirt, oil stains, leaves, dust, etc. It is extremely inconvenient to clean with a rag, and it is necessary to use a water stream or even a high-pressure water stream for spraying. In order to meet the above requirements, the solution on the market is to provide a domestic high pressure cleaner.

In outdoor activities, such as mountaineering, cross-country, cycling, camping, horse riding, boating, etc., because the environment is closer to nature and the activity is fierce, the utensils and animals involved in the activity are more likely to become dirty and need to be cleaned in time. For example, after driving in the wild, cars, motorcycles and bicycles must be covered with dirt. After the sailing, the mud and grass attached to the hull need to be cleaned up. Horses and users will also sweat and slime, it is best to shower or rinse in time to avoid physical discomfort.

In summary, users have cleaning needs in various scenarios and locations. However, the related products currently on the market tend to infiltrate into the inside of the machine during use, which makes the product have potential safety hazards, which may cause leakage and electric shock.

Therefore, it is necessary to provide a new high pressure cleaner to solve the above problems.

Summary of the invention

In order to overcome the deficiencies of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a high pressure cleaner that can adjust the water pressure.

The technical solution adopted by the embodiments of the present disclosure to solve the prior art problem is: a hand-held high-pressure cleaner comprising: a housing having a handle for holding and a main body portion disposed at an angle to the handle; a motor disposed in the housing and a pump driven by the motor; a control unit disposed in the housing, connected to the motor to control the motor to operate; and a main switch disposed on the housing Controlling the start and stop of the motor; the housing is further provided with a speed regulating element independent of the main switch, the speed regulating element is connected with the control unit, and the control unit is adjusted according to the speed regulating element A speed command controls the speed of the motor to regulate the pressure of the pump output stream.

In one embodiment, the speed regulating element is a gear speed regulating element, and the gear speed regulating element has at least two speed gear positions, and the at least two speed gear positions are high speed gear and low speed respectively. Gear position.

In one of the embodiments, the gear speed governing element includes an operating member having a plurality of operating positions, the plurality of operating positions of the one operating member corresponding to different speed gear positions.

In one embodiment, the gear speed governing element includes at least two operating members, the at least two operating members corresponding to different speed gear positions.

In one embodiment, the hand held high pressure cleaner further includes a spray head coupled to the body portion, the spray head including one or more combinations of a long gun spray head, a short gun spray head, and a retractable spray head.

In one embodiment, the hand-held high-pressure cleaner includes a first working mode formed by connecting the main body portion with the long gun nozzle and a second working formed by connecting the main body portion and the short gun nozzle. The mode, the speed adjustment range of the speed governing component in the first working mode is different from the speed regulating range of the speed regulating component in the second working mode.

In one embodiment, when the handheld high pressure cleaner is in the first working mode, the speed governing component has a speed adjustment range of 0.6 MPa to 10 MPa.

In one embodiment, when the handheld high pressure cleaner is in the second mode of operation, the speed governing component has a speed range of 0.2 MPa to 0.69 MPa.

In one embodiment, the control unit further includes an identification module for identifying the type of the nozzle connected to the main body, and controlling the handheld high pressure cleaner according to the type of the nozzle In the first working mode or the second working mode.

In one embodiment, the length of the long gun nozzle is greater than the length of the short gun nozzle, the trigger nozzle is provided with a triggering member, and the triggering nozzle has no triggering member, and the identification module can identify the The trigger member outputs a recognition result, and the control unit controls the motor to cause the handheld high-pressure cleaner to be in the first working mode or the second working mode according to the recognition result.

In one embodiment, the trigger member is a magnet or an induction coil, and the identification module is a Hall detecting element for detecting a magnetic field strength of the magnet or the induction coil.

In one embodiment, the retractable spray head has a first length spray head formed in a stretched state and a second length spray head formed in a compressed state, the first length spray head being coupled to the main body portion The speed adjustment range of the speed regulating component is different from the speed regulation range of the speed regulating component when the second length nozzle is connected to the main body.

In one embodiment, the hand-held high-pressure cleaner is capable of identifying the type of the nozzle connected to the main body portion, and controlling the rotation speed of the motor according to the recognition result to adjust the pump output liquid. The pressure of the flow.

In view of this, one of the objects of embodiments of the present disclosure is to provide a high pressure cleaner having a safety lock button.

To achieve the above object, a technical solution adopted by an embodiment of the present disclosure is: a hand-held high-pressure cleaner comprising: a housing having a handle for holding; a functional component including a motor disposed in the housing and the motor a drive pump; a start switch disposed on the housing to control activation and deactivation of the handheld high pressure washer, the start switch having an open position to activate the handheld high pressure washer and closing the handheld high pressure a closed position of the washing machine; the housing is further provided with a self-locking button having a locking state for restricting movement of the activation switch to the open position and enabling the activation switch to move to the opening An unlocked state of the position; when the self-locking key is in the locked state, the start switch cannot move to the open position to activate the handheld high-pressure cleaner; when the self-locking key is in the unlocked state The activation switch can be moved to the open position to activate the handheld high pressure washer or move from the open position to the closed position to close the handheld high washing machine.

In one embodiment, the activation switch includes a locking portion that cooperates with the self-locking button, and when the self-locking button is in a locked state, the self-locking button abuts against the locking portion to The activation switch is restricted from moving relative to the housing to the open position; and when the self-locking key is in an unlocked state, the activation switch is movable relative to the housing to the open position.

In one embodiment, the self-locking key further includes a key body portion, and when the activation switch is located in the closed position, the key body portion is abutted against the locking portion, and the key body portion is operable Moving relative to the housing in a predetermined direction moves the self-locking key from the locked state to the unlocked state.

In one embodiment, the key body portion includes a pressing unit and a blocking unit disposed at an angle, the self-locking key further comprising an elastic member abutting between the housing and the pressing unit, The pressing unit operatively acts on the elastic member to drive the blocking unit to move in the predetermined direction.

In one embodiment, when the self-locking key is in the locked state, the elastic member is in a non-compressed free state; when the self-locking key is in the unlocked state, the elastic member is in a compressed state.

In one of the embodiments, the moving path of the locking portion is perpendicular to the moving path of the blocking unit.

In one embodiment, the locking portion is formed with a hollow portion that is recessed inwardly, and when the self-locking button is in an unlocked state, the activation switch is operatively moved toward the housing to enable the A blocking unit is housed in the hollow portion.

In one embodiment, when the activation switch is moved from the open position to the closed position, the locking portion moves away from the blocking unit to disengage the blocking unit from the hollow portion. The self-locking key returns to the locked state under the action of the elastic member.

In one embodiment, when the activation switch is moved to the open position, the blocking unit is confined in the hollow portion, so that the self-locking key cannot return to the locking under the action of the elastic member. status.

In one embodiment, the farthest stroke between the activation switch and the handle is less than 25 mm

To overcome the deficiencies of the prior art, the problem to be solved by embodiments of the present disclosure is to provide a hand-held high pressure cleaner capable of efficiently dissipating heat.

The technical solution adopted by the embodiments of the present disclosure to solve the prior art problem is: a hand-held high-pressure cleaner comprising: a housing having a handle for holding; a motor disposed in the housing, driven by the motor Pump comprising a front end opposite the pump and a rear end opposite the front end; a switch disposed on the housing for activating or deactivating the handheld high pressure cleaner The motor further includes a motor casing, the motor casing is provided with a first opening at the front end portion, and the casing is provided with a first air inlet opening near the first opening position, the motor a fan is connected to the rear end portion, and an air outlet is opened in the casing near the fan position, and the motor drives the fan to rotate, and a cooling airflow is generated to sequentially flow from the first air inlet and the first opening. A first cooling passage for cooling the electric motor is formed between the first air inlet and the air outlet through the inside of the motor and flowing out from the air outlet.

In one embodiment, the fan is disposed in the motor casing, and the motor casing is provided with a wind hole at a circumferential position of the fan, and the air outlet is connected to the air hole. The motor drives the fan to rotate, generating a cooling airflow into the first cooling passage, passing through the air hole and flowing outward from the air outlet.

In one embodiment, the motor casing is provided with a second opening at a position of the rear end of the motor, and the casing is provided with a second air inlet that can communicate with the outside under the second opening. The motor drives the fan to rotate, generating a cooling airflow flowing in from the second air inlet, flowing from the second opening, passing through a rear end portion of the motor and flowing outward from the air outlet, A second cooling passage for cooling the electric motor is formed between the second air inlet and the air outlet.

In one embodiment, the housing protrudes inwardly from the inner wall thereof with a first partition, the first partition abuts the outer wall of the motor casing in a circumferential direction, and the first partition A plate is disposed between the second air inlet and the air outlet.

In one embodiment, the housing protrudes inwardly from the inner wall thereof with a second partition, the second partition abuts the outer wall of the motor casing in the circumferential direction, and the second partition A plate is disposed between the first air inlet and the air outlet.

In one embodiment, the orthographic projection of the switch on the plane of the second air inlet covers the second air inlet, when the switch is in the starting position of the handheld high pressure cleaner, The switch blocks the second air inlet.

In one embodiment, the first air inlet includes at least one air inlet groove, and the air outlet includes at least one air outlet groove, and the air inlet groove and the air outlet groove are respectively The outer wall of the casing is recessed inwardly, and the bottom of the air inlet groove and the air outlet groove respectively have a blocking plate, and a gap is formed between the blocking plate and the casing.

In one embodiment, the direction in which the air inlet groove extends is parallel to the axial direction of the motor, and the direction in which the air outlet groove extends is perpendicular to the axial direction of the motor.

In one embodiment, the opening directions of the air inlet groove and the air outlet groove are respectively disposed at an angle to the direction of the gap opening.

In one embodiment, the opening directions of the air inlet groove and the air outlet groove are respectively set at an angle of 90 degrees to the direction of the gap opening.

A problem to be solved by embodiments of the present disclosure is to provide a hand-held high pressure cleaner that is easy to operate with one hand to adjust water pressure.

The technical solution adopted by the embodiments of the present disclosure to solve the problems of the prior art is: a spray head that can be coupled with a high-pressure cleaner, the high-pressure cleaner including a water outlet portion that transports a water flow outward, the spray head comprising:

The nozzle housing has a base portion and a mating portion at one end of the base portion, and the mating portion can be mated with the water outlet portion;

a nozzle connected to the other end of the base;

After the mating portion is mated with the water outlet portion, the mating portion is non-rotatable relative to the water outlet portion, and the water flow is merged from the water outlet portion into the nozzle housing, and The nozzle is ejected outwardly and the nozzle is operatively rotatable relative to the spray head housing to effect different types of water flow from the nozzle.

In one embodiment, one of the water outlet portion and the mating portion is configured as an anti-plug connector, and the other of the water outlet portion and the mating portion is configured to be inserted with the anti-rotation plug The anti-rotation interface of the non-rotating connection of the connector.

In one embodiment, the anti-rotation joint is a flat structure, and the anti-rotation interface is a flat groove adapted to the flat structure.

In one embodiment, the nozzle includes a plurality of water outlets of different styles, the nozzle shell has a water flow passage that can be disposed in communication with the water outlet, and the plurality of water outlets are selected from the The water flow channels are in communication to form a different type of water stream as described above that is ejected outwardly from the nozzle.

The embodiment of the present disclosure further provides a high pressure cleaner using the above nozzle: a high pressure cleaner comprising: a housing including a water outlet portion for conveying a water flow outward; and a functional component, the functional component including a pump for conveying a water flow and a motor for driving the pump; a spray head connected to the housing, the spray head comprising: a spray head shell having a base portion and a mating portion at one end of the base portion, the mating portion being capable of The water outlet portion is mated with a nozzle; the nozzle is connected to the other end of the base; and when the mating portion is mated with the water outlet portion, the mating portion is non-rotatable relative to the water outlet portion, the water flow Importing from the water outlet portion to the nozzle housing and ejecting outwardly from the nozzle, the nozzle being operatively rotatable relative to the nozzle housing to effect different types of water flow from the nozzle Out.

In one embodiment, the nozzle has a rotating shaft that rotates relative to the spray head housing, and the high pressure cleaner includes a locking assembly disposed at a junction of the mating portion and the water outlet portion, the locking The assembly has a locking position that restricts movement of the head in the extending direction of the rotating shaft and a release position in which the head can be disengaged from the water outlet along an extending direction of the rotating shaft.

In one of the embodiments, the housing includes a handle for gripping and a body portion disposed at an angle to the handle, the motor and the pump being disposed within the body portion.

In one embodiment, the water outlet portion is formed at a free end of the body portion, the free end and the handle are located on both sides of the body portion, and the water flow can be pressurized at the pump The lower end flows from the free end to the spray head to spray the water stream outward.

In one embodiment, the housing further includes a gun attachment attached between the spray head and the main body portion, the gun attachment comprising one of a long gun attachment, a short gun attachment, and a retractable gun attachment Or a plurality of combinations, one end of the gun attachment is in communication with the main body portion, the water outlet portion is formed at the other end of the gun attachment, and the water flow can be from the main body under the pressure of the pump Flowing to the other end of the gun attachment and ejecting the water flow outward through the spray head.

In one embodiment, the high pressure cleaner includes a universal rod coupled between the housing and the spray head, the universal rod including a universal head that is directly engageable with the housing The body is connected, and the water outlet is disposed on the universal rod and disposed opposite to the universal head.

In one embodiment, the nozzle housing further includes a universal connecting portion connected between the base portion and the mating portion, the universal connecting portion being detachably connected to the mating portion, The nozzle housing includes a first working mode in which the universal connecting portion can be directly connected to the water outlet portion, and a second working mode in which the mating portion is connected to the water outlet portion. Switching between the first working mode and the second working mode.

In one embodiment, one of the water outlet portion and the mating portion is configured to prevent insertion The connector, the other of the water outlet portion and the mating portion, is configured as an anti-rotation plug interface that is non-rotatably coupled to the anti-rotation plug connector.

In view of this, the technical problem to be solved by the embodiments of the present disclosure is to provide a water inlet assembly with higher convenience.

To achieve the above objective, the technical solution adopted by the embodiments of the present disclosure is:

An inlet pipe assembly configured to be connectable to a high pressure cleaner for absorbing an external water source, the inlet pipe assembly comprising: a water pipe provided with a water outlet connected to the high pressure cleaner and disposed opposite to the water outlet a water inlet; an interface member connected to the water inlet and communicating with the water pipe; the water inlet assembly further comprising a filter assembly, the filter assembly comprising a first filter member detachably connected to the interface member, The interface member has a universal interface selectively connectable to the first filter member and a water source conduit interface, and the water inlet assembly includes connecting the first filter member to the universal interface A first mode of operation for absorbing an external source of water and the water source conduit interface are coupled to the universal interface for a second mode of operation for absorbing an external source of water.

In one embodiment, the cleanliness of the external water source connected by the water inlet assembly in the first mode of operation is less than the cleanliness of the external water source connected by the water inlet assembly in the second mode of operation.

In one embodiment, the water supply line interface is a garden hose or faucet.

In one embodiment, the first filter member includes a plurality of slots that are hollowed inside and outside. When the first filter member is connected to the interface member, the slot, the universal interface, and the water pipe are mutually connected. Connected settings.

In one embodiment, the filter assembly further includes a second filter member disposed in a receiving cavity formed by the interface member and the first filter member, the second filter member The filter hole, the slot, the universal interface and the water pipe are connected to each other, and the pores of each filter hole are smaller than the pores of each slot.

In one embodiment, the second filter member is disposed independently of the first filter member, and the second filter member includes a filter mesh and a support frame for supporting the filter mesh.

In one embodiment, the water inlet assembly further includes the interface member being detached from the filter assembly and the water source conduit interface, the interface member independently connecting the third working mode of the external water source .

In one embodiment, the water inlet assembly includes a detachable connection to the water pipe The hook member is connectable to the container device to position the water tube when the external water source is a water source contained in the container device.

In one embodiment, the hook member includes a first latching portion coupled to the container device and a second latching portion that is engaged with the water tube, the second latching portion being The first latching portion protrudes outwardly, and the first latching portion includes two latching arms opposite to each other, and the free ends of the two latching arms are provided with at least one bent area to prevent The hook member is detached from the container device.

In one embodiment, the water inlet assembly further includes a weight member disposed away from the water outlet of the water pipe.

In one embodiment, the weight member includes a hoop portion and a fastener for fastening the hoop portion, the hoop portion being looped in a region where the interface member is connected to the water pipe.

In one embodiment, the water inlet assembly includes a suspension connected between a water inlet of the water pipe and a water outlet of the water pipe.

In one embodiment, the suspension member is movably coupled to the water pipe, the water pipe extends axially along a central axis, and the central axis forms an intersection with a plane in which the water inlet is located, The suspension member includes a top portion adjacent to the water outlet, and a linear distance between the top portion and the intersection point is greater than or equal to 25 cm.

In one embodiment, the water inlet assembly further includes a docking assembly coupled to the water outlet, the docking assembly enabling quick insertion of the high pressure washer.

In view of this, the technical problem to be solved by the embodiments of the present disclosure is to provide a high-pressure cleaning machine with higher convenience.

A high pressure cleaner comprising: a housing; a functional component comprising a motor disposed in the housing and a pump for conveying water flow outward; and an inlet pipe assembly comprising: a water pipe connected to the high pressure cleaning a water outlet of the machine and a water inlet opposite to the water outlet; an interface member connected to the water inlet and communicating with the water pipe; the water inlet assembly further comprising a filter assembly, the filter assembly comprising a detachable Connected to the first filter of the interface member, the interface member has a universal interface, the universal interface is selectively connectable to the first filter member and a water source pipe interface, and the water inlet pipe assembly includes The first filter member is coupled to the universal interface for performing a first mode of operation for absorbing an external water source and the water source conduit interface is coupled to the universal interface for a second mode of operation for absorbing an external water source.

In one embodiment, the cleanliness of the external water source connected by the water inlet assembly in the first working mode is less than the external water source connected to the water inlet assembly in the second working mode. Cleanliness.

In one embodiment, the water supply line interface is a garden hose or faucet.

In one embodiment, the high pressure cleaner is a hand held high pressure cleaner, the housing including a handle for gripping and a body portion disposed at an angle to the handle.

An inlet pipe assembly configured to be connectable to a high pressure cleaner for absorbing an external water source, the inlet pipe assembly comprising: a water pipe extending axially along a central axis, the water pipe including the high pressure cleaner a water outlet connected to the water outlet and a water inlet opposite to the water outlet; an interface member connected to the water inlet and communicating with the water pipe; the water inlet assembly includes a suspension member, and the suspension member is movable Between the water inlet connected to the water pipe and the water outlet of the water pipe, the central axis and the plane where the water inlet is located form an intersection, the suspension member includes a top portion adjacent to the water outlet, the top The linear distance between the intersections is greater than or equal to 25 cm.

In one embodiment, the linear distance between the top and the intersection is 30 to 100 cm.

In one embodiment, the suspension member includes a body portion and a coloring layer applied to the periphery of the body portion, the color of the coloring layer being different from the color of the water pipe and the external water source.

In one embodiment, the water inlet assembly includes a filter assembly, the filter assembly is detachably coupled to the interface member, the filter assembly includes a first filter member and a second filter member, the first The filter member is connected to the interface member, and the second filter member is disposed in the receiving cavity formed by the interface member and the first filter member.

In one embodiment, the first filter member is provided with a plurality of slots which are hollowed inside and outside, the slot is connected to the water pipe, and the second filter member is provided with a plurality of filter holes, and the filter The hole, the slot and the water pipe are connected to each other, and the pores of each filter hole are smaller than the slot of each slot.

In one embodiment, the water inlet assembly includes a weight member disposed between the suspension member and the water inlet.

In one embodiment, the weight member includes a hoop portion and a fastener for fastening the hoop portion, the hoop portion is disposed at an area where the interface member is connected to the water pipe .

In one embodiment, when the water inlet assembly is placed in the external water source, the buoyancy generated by the suspension is greater than or equal to the total gravity of the filter assembly, the interface member, and the weight member. .

In one embodiment, the water inlet assembly includes a hook member detachably coupled to the water pipe, the hook member being capable of being coupled to the water source when the external water source is a water source contained in the container device A container device is coupled to position the water tube.

A high pressure cleaner comprising: a housing; a functional component comprising a motor disposed within the housing and a pump for conveying water flow outward; and an inlet pipe assembly comprising: a water pipe axially along a central axis Extendingly, the water pipe includes a water outlet connected to the high-pressure cleaner and a water inlet disposed opposite to the water outlet; an interface member connected to the water inlet and communicating with the water pipe; the water inlet pipe The assembly includes a suspension member movably coupled between the water inlet of the water pipe and the water outlet of the water pipe, the central axis and the plane of the water inlet forming an intersection, the suspension member A top portion adjacent to the water outlet is included, and a linear distance between the top portion and the intersection point is greater than or equal to 25 cm.

In view of this, the technical problem to be solved by the embodiments of the present disclosure is to provide a hand-held high-pressure cleaner with higher convenience and better cleaning efficiency.

To achieve the above object, the technical solution adopted by the embodiments of the present disclosure is:

A hand-held high-pressure cleaner comprising: a housing including a handle for gripping, a body portion disposed at an angle of the handle, and a water outlet portion that is sprayed outwardly from the water supply flow; and a functional component including the housing a motor in the body and a pump for conveying water flow outward; a start switch disposed on the housing for controlling the handheld high pressure cleaner to be in an open state or a closed state; the handheld high pressure cleaner outputting outward The working water pressure is 0.2Mpa to 10Mpa, and the working water flow output to the outside is 1.5L/Min~8L/Min.

In one embodiment, when the working water pressure outputted by the hand-held high-pressure cleaner is 0.2 MPa or more and less than 0.6 MPa, the ratio of the working water pressure to the working water flow is 0.025 ～ 0.18; and when the working water pressure outputted by the hand-held high-pressure cleaner is greater than or equal to 0.6 MPa and less than or equal to 10 MPa, the ratio of the working water pressure to the working water flow is 0.25-2.5.

In one embodiment, when the working water pressure outputted by the hand-held high-pressure cleaner is 0.2Mpa or more and less than 0.6Mp, the working water flow rate is 1.5L/Min or more, less than or equal to 8L/Min.

In one embodiment, when the handheld high pressure cleaner outputs outward, the working water pressure is When the value is greater than or equal to 0.6 MPa and less than 10 MPa, the working water flow rate is greater than or equal to 1.5 L/min and less than or equal to 8 L/min.

In one embodiment, the handheld high-pressure cleaner is powered by direct current, the DC power source is a battery pack, the number of the battery packs is configured as one or more, and the rated voltage of one battery pack is 18~ 56V.

In one embodiment, the pump includes a pump body and

a single plunger disposed within the pump body, the hand held high pressure washer including a transmission mechanism coupled to the single plunger, the transmission mechanism for converting rotational motion of the motor to the single plunger Reciprocating motion.

In one embodiment, the motor is a high-speed motor, the motor has a rotational speed greater than 10,000 rpm, and the transmission mechanism includes a gear reduction mechanism, and the gear reduction mechanism has a reduction ratio of 12:1 to 3 Between:1.

In one embodiment, the transmission mechanism includes an eccentric mechanism coupled between the pump and the gear reduction mechanism, the motor driving the eccentric mechanism to move the single plunger in the The pump body performs the reciprocating motion.

In one embodiment, the handheld high pressure cleaner includes a battery pack for powering a functional component, when the weight of the functional component of the handheld high pressure cleaner is less than or equal to 1200 grams, and the weight of the single battery pack The working water pressure outputted by the hand-held high-pressure cleaner is 0.2Mpa to 6Mpa, and the working water flow rate is 1.5L/Min to 8L/Min.

In one embodiment, the number of battery packs is one, and the one battery pack is configured to have a rated voltage of 18V and a rated capacity of 2 Ah. When the handheld high pressure cleaner is in an open state, the The time period in which the water outlet continuously discharges the water flow is 10 to 60 minutes.

In one embodiment, the pump includes a pump body and three plungers disposed in the pump body, the hand-held high pressure cleaner including a transmission mechanism connecting the three plungers, the transmission mechanism It is used to convert the rotational motion of the motor into a reciprocating motion of the three plungers.

In one embodiment, the transmission mechanism includes a swash plate mechanism coupled between the pump and the gear reduction mechanism, the motor driving the swash plate mechanism to move the three plungers The reciprocating motion is performed in the pump body.

In one embodiment, the handheld high pressure cleaner includes electricity for powering functional components The pool package, when the weight of the functional component of the handheld high-pressure cleaner is less than or equal to 2500 grams, and the weight of the single battery pack is less than or equal to 1500 grams, the working water pressure of the handheld high-pressure cleaner is 2Mpa ~10Mpa, working water flow is 3L/Min~8L/Min.

In one embodiment, the battery pack is configured to have a rated voltage of 18V, and when the rated capacity of the single battery pack is 2 Ah, the number of the battery packs is two; when the single battery pack is rated When the capacity is 4 Ah, the number of the battery packs is one, the hand-held high-pressure cleaner is in an open state, and the time period in which the hand-held high-pressure cleaner continuously discharges water is 10 to 120 minutes.

In one embodiment, the hand-held high pressure cleaner has a weight of 1.5 kg or more and 6 kg or less.

In one embodiment, the housing further includes a governing member independent of the activation switch, the handheld high pressure cleaner including a control unit disposed within the housing, the control unit for controlling The motor is operated, the speed regulating component is connected to the control unit, and the control unit controls the rotation speed of the motor according to the speed regulation instruction of the speed regulating component to adjust the corresponding working water pressure of the pump output.

In order to achieve the above object, another technical solution adopted by the embodiment of the present disclosure is:

A hand-held high-pressure cleaner comprising: a housing including a handle for gripping, a body portion disposed at an angle of the handle, and a water outlet portion that is sprayed outwardly from the water supply flow; and a functional component including the housing a motor in the body and a pump for conveying water to the outside; a start switch disposed on the housing for controlling the handheld high pressure cleaner to be in an open state or a closed state; the handheld high pressure cleaner having a spray mode And a cleaning mode, when the handheld high-pressure cleaner is in the spray mode, the working water pressure outputted by the handheld high-pressure cleaner is greater than or equal to 0.2 MPa and less than 0.6 MPa, and the working water flow is greater than Is equal to 1.5L/Min and less than or equal to 8L/Min; when the handheld high-pressure cleaner is in the cleaning mode, the working water pressure outputted by the handheld high-pressure cleaner is greater than or equal to 0.6Mpa, and less than or equal to 10Mpa, the working water flow rate is 1.5L/Min or more, and is less than or equal to 8L/Min.

In one embodiment, when the handheld high pressure cleaner is in the spray mode, the ratio of the working water pressure to the working water flow is 0.025 to 0.18; and when the handheld high pressure cleaner In the cleaning mode, the ratio of the working water pressure to the working water flow rate is 0.25 to 2.5.

In view of this, the technical problem to be solved by the embodiments of the present disclosure is to provide a high-pressure cleaner that is simple in structure and waterproof.

A high-pressure cleaner includes: a housing including a base provided with an abutting surface; a housing terminal connected to the base; and a functional component including a motor disposed in the housing and a pump for conveying water flow outward ;

The high-pressure cleaner can be electrically connected to a battery pack, the battery pack includes a mating surface that can be mated with the mating surface, and a plurality of battery pack terminals electrically connected to the housing terminal, the high voltage The cleaning machine is mated with the battery pack to form a docking chamber for electrically connecting the housing terminal and the battery pack terminal, and the docking chamber is selectively disposed in the high pressure cleaner or the battery The high pressure cleaner is provided with a sealing structure, and the sealing structure can seal the docking chamber when the battery pack is mated with the high pressure cleaner.

In one embodiment, the housing terminal protrudes at least partially outwardly from the mating surface, and the battery pack includes receiving the battery pack terminal and inserting the housing terminal with the battery pack An insertion space electrically connected to the terminal, the insertion space forming the mating cavity for electrically connecting the housing terminal and the battery pack terminal.

In one embodiment, the battery pack terminal protrudes at least partially outwardly from the mating surface, and the housing includes housing the housing terminal and the battery pack terminal is inserted into the housing And a docking space electrically connected to the terminal, the docking space forming the docking cavity for electrically connecting the housing terminal and the battery pack terminal.

In one embodiment, the sealing structure is coupled to the mating surface, the sealing structure is attached to at least a portion of the mating surface, and the battery pack is mated with the high-pressure cleaner. The sealing structure is capable of sealing the docking chamber.

In one embodiment, the sealing structure is a soft gasket that includes a plurality of openings therethrough for corresponding insertion of the housing terminals or the battery pack terminals.

In one embodiment, the housing includes a battery mount, the battery mount includes a pair of opposing side portions, the side portion and the base defining a battery pack receiving chamber, The battery pack receiving chamber has at least three walls, including a base wall and two side walls extending in a direction perpendicular to the base wall, the base including a top wall extending in a direction perpendicular to the abutting surface, the sealing structure is connected On the base wall, the top wall and the side wall, after the high-pressure cleaner is mated with the battery pack, the docking chamber is located in a region encircled by the sealing structure.

In one embodiment, the housing includes a battery mount, the battery mount includes a pair of opposing side portions, the side portion and the base defining a battery pack receiving chamber, The battery pack receiving chamber has at least three walls, including a base wall and a pair of side walls extending in a direction perpendicular to the base wall, the side portion being provided with a bottom wall perpendicular to the side wall, the sealing structure being connected On the bottom wall, the side wall and the base wall, after the high-pressure cleaner is mated with the battery pack, the docking chamber is located in a region encircled by the sealing structure.

In one embodiment, the battery pack includes a bottom and a cover connected to the bottom of the package. The cover is provided with a heat dissipation opening.

In one embodiment, the high pressure cleaner further includes a vent seal disposed on the housing for sealing the vent, the vent seal being located above the vent.

In one embodiment, the housing includes a receiving groove for receiving the heat dissipation port gasket, and the heat dissipation port gasket includes an outer surface facing the heat dissipation opening, when the heat dissipation port gasket is connected to The accommodating groove has the outer surface at least partially exceeding a base wall of the housing.

In one embodiment, the battery pack further includes a vent seal disposed on the cover for sealing the vent, the vent seal being located above the vent.

A high-pressure cleaner capable of being electrically connected to the battery pack, the high-pressure cleaner comprising: a housing including a base provided with an abutting surface; a housing terminal connected to the base; and functional components, The utility model comprises a motor disposed in the housing and a pump for conveying water flow outward; the battery pack includes a mating surface capable of being mated with the mating surface and a plurality of battery pack terminals electrically connected to the housing terminal The high-pressure cleaner is inserted into the battery pack to form a mating cavity for electrically connecting the housing terminal and the battery pack terminal, and the docking chamber is selectively disposed in the high-pressure cleaner Or the battery pack; at least one of the high-pressure cleaner and the battery pack is provided with a sealing structure, and the sealing structure can be the docking chamber when the battery pack is mated with the high-pressure cleaner seal.

In one embodiment, the battery pack includes a bottom and a cover connected to the bottom, the cover includes a top surface, and a boss is protruded from the top surface, and the boss includes a cover An upper surface perpendicular to the mating surface, a pair of side surfaces connecting the upper surface and the top surface, the insertion space being one or more of the upper surface, the mating surface, and the side surface The inner cavity facing the battery pack is recessed.

In one embodiment, the sealing structure is attached to one or more faces forming the insertion space, and after the battery pack is mated with the high-pressure cleaner, the insertion space is located at the In the region enclosed by the sealing structure, the sealing structure can seal the insertion space from the outside.

In one embodiment, the sealing structure is attached to one or more faces of the base After the battery pack is mated with the high-pressure cleaner, the insertion space is located in a region enclosed by the sealing structure, and the sealing structure can seal the insertion space from the outside.

In one embodiment, the docking space is formed by one or more inwardly facing depressions surrounding the base.

In one embodiment, the sealing structure is attached to one or more faces forming the docking space, and after the battery pack is mated with the high-pressure cleaner, the docking space is located at the In the region enclosed by the sealing structure, the sealing structure can seal the docking space from the outside.

In one embodiment, the housing includes a battery mount, the battery mount includes a pair of opposing side portions, the side portion and the base defining a battery pack receiving chamber, The battery pack receiving chamber has at least three walls, including a base wall and two side walls extending in a direction perpendicular to the base wall, the base including a top wall extending in a direction perpendicular to the abutting surface, the sealing structure being connected to the On the base wall, the top wall and the side wall, after the high-pressure cleaner is mated with the battery pack, the docking chamber is located in a region encircled by the sealing structure.

In one embodiment, the sealing structure is attached to one or more faces of the battery pack, and after the battery pack is mated with the high-pressure cleaner, the docking space is located in the The sealing structure is capable of sealing the docking space from the outside in a region enclosed by the sealing structure.

In one embodiment, the sealing structure is coupled to a mating surface of the battery pack, the sealing structure is attached to at least a portion of the mating surface, and the battery pack is mated with the high pressure cleaner. Thereafter, the sealing structure is capable of sealing the docking chamber.

In one embodiment, the battery pack includes a bottom and a cover connected to the bottom of the package, the cover includes a top surface, and a boss is protruded from the top surface, and the boss includes a cover Mating surface a vertical upper surface, a side surface connecting the upper surface and the top surface, the sealing structure connecting the upper surface, the side surface, and the top surface, when the high pressure cleaner and the battery After the package is mated, the docking cavity is located in a region enclosed by the sealing structure.

In one embodiment, the sealing structure may be a block-shaped gasket or an elongated strip.

A high pressure cleaner assembly comprising a high pressure cleaner and a battery pack electrically connected to the high pressure cleaning, the pressure washer comprising: a housing comprising a base provided with a mating surface; a housing terminal connected to The susceptor includes: a motor disposed in the housing and a pump for conveying water flow outward; the battery pack includes: a mating surface capable of mating with the mating surface; a battery pack terminal, and a The housing terminal is electrically connected; the high-pressure cleaner is inserted into the battery pack to form a docking cavity for electrically connecting the housing terminal and the battery pack terminal, and the docking cavity is selectable. Arranging on the high-pressure cleaner or the battery pack; at least one of the high-pressure cleaner and the battery pack is configured with a sealing structure, and when the battery pack is mated with the high-pressure cleaner, the A sealing structure is capable of sealing the docking chamber.

DRAWINGS

1 is a schematic perspective view of a high pressure cleaner in an embodiment of the present disclosure.

2 is a schematic view showing the internal structure of the high pressure cleaner shown in FIG. 1 after the first half shell is opened.

Figure 3 is a perspective view of the self-locking key.

Fig. 4(a) is a cross-sectional view showing the self-locking state in a self-locking state.

Figure 4 (b) is a cross-sectional view of the self-locking button in an unlocked state and the switch is closed.

Fig. 4(c) is a cross-sectional view showing the self-locking key in an unlocked state and the switch is turned on.

FIG. 5( a ) is a schematic diagram of an operation of the user unlocking and starting up with one hand operation.

Figure 5 (b) is a schematic diagram of the operation of the one-hand operation of the washing machine after the user unlocks.

Figure 6 (a) is a front view of the first half of the high pressure cleaner shown in Figure 1.

Figure 6(b) is a cross-sectional view taken along line b-b of Figure 6(a).

Figure 6(c) is a cross-sectional view taken along line c-c of Figure 6(a).

Fig. 7 is a schematic view showing the operation of the user to adjust the speed with one hand.

Figure 8 is a schematic view showing the structure of the nozzle of the high pressure cleaner shown in Figure 1.

Figure 9 is a machine of different weights, the operator holds the comfort test table.

Figure 10 is a front elevational view of the pump of the hand held high pressure cleaner of Figure 1.

Figure 11 is a partial exploded view of the pump of the hand held high pressure cleaner of Figure 10.

Figure 12 is a schematic illustration of a partial exploded view of the pump of Figure 11 taken along another perspective.

Figure 13 is a structural view of a plunger of a pump of the high-pressure cleaner shown in Figure 11.

Figure 14 is a view showing the connection structure of the plunger of the pump of the high-pressure cleaner shown in Figure 1 and the eccentric mechanism.

Figure 15 is a structural view of a planetary reduction mechanism of the pump of the high-pressure cleaner shown in Figure 1.

16 is a schematic view of a pump connecting a plunger through a crank link mechanism in another embodiment of the embodiment of the present disclosure.

Figure 17 is a schematic view of the nozzle housing, the nozzle and the universal rod shown in Figure 1.

Figure 18 is a schematic illustration of a universal rod of a high pressure cleaner.

Figure 19 is a schematic view of the nozzle housing of the high pressure cleaner being mated with the nozzle.

Fig. 20 is a cross-sectional view showing the structure in which the head case, the nozzle, and the universal rod shown in Fig. 17 are mated in the L-L direction.

Figure 21 is a schematic view of the structure of the gun attachment

Figure 22 is a perspective view of the high pressure washer and the inlet pipe assembly.

Figure 23 is a cross-sectional view of the water inlet assembly removing hook member.

Figure 24 is an exploded view of the high pressure cleaner and battery pack to which the water inlet assembly is attached.

Figure 25 is a partial exploded view of the high pressure cleaner.

Fig. 26 is a perspective view of the battery pack shown in Fig. 1;

Figure 27 is a perspective view of one embodiment of a high pressure cleaner connected to a sealing structure.

Figure 28 is a perspective view of one embodiment of a high pressure cleaner connected to a sealing structure.

Figure 29 is a perspective view of one embodiment of a battery pack with a sealing structure attached thereto.

detailed description

The preferred embodiments of the embodiments of the present disclosure are explained in detail below with reference to the accompanying drawings, in which the advantages and features of the embodiments of the present disclosure can be more easily understood by those skilled in the art, thereby making the protection scope of the embodiments of the present disclosure. More clearly and clearly defined.

As shown in Figures 1 to 2, a high pressure cleaner 1 having a substantially pistol-like housing 10 is shown. The housing 10 has a handle 106 for gripping and a body portion 108 for storing functional components. The main body portion 108 has a motor 2, a transmission mechanism 3 that connects the motor 2, and a pump 4 that is driven by a transmission mechanism. In this embodiment, the housing 10 is constructed of a left and right Haval structure and is connected by a first half shell and a second half shell. For the purpose of portability, the high-pressure cleaner 1 itself does not have a water tank for storing the water source, but is connected to the water pipe through the water inlet 102 of the main body portion, and the water pipe is connected to the external water source, and the external water source may be a pond, a faucet or the like. In this embodiment, the high pressure cleaner 1 is powered by a battery pack 9 of a direct current power source. The battery pack 9 is disposed at one end of the handle 106 remote from the main body portion 108.

In this embodiment, a start switch 5, in particular a trigger, is provided adjacent the handle 106 for triggering the communication of the external water source with the pump 4 and triggering the rotation of the motor 2. Specifically, the high-pressure cleaner 1 further includes a water inlet port, and the water inlet port is connected to the pump, and a control valve is disposed between the start switch to open the control valve to connect the water inlet port with the pump, so that the water can enter the pump under the suction of the pump. Of course, in other embodiments, the control valve may not be provided, and the start switch 5 is only set to trigger the rotation of the motor.

In this embodiment, the high pressure cleaner 1 further includes a control board 6. The control board 6 is electrically connected to the battery pack 9, the motor 2, and the start switch 5, respectively. The control board 6 has a built-in control program for controlling the power supply of the battery pack 9, whether the motor 2 is rotated, and the change of the rotational speed of the motor 2. In this embodiment, the control board 6 is disposed at an upper position where the handle 106 is connected to the battery pack 9. The position where the control board 6 is located away from the head 11 of the high pressure cleaner 1 effectively prevents the splash control panel 6 at the head 11.

In order to improve the safety of use, in the embodiment, the high pressure cleaner also has a self-locking function. With continued reference to FIG. 1, one side of the handle 106 is provided with a self-locking key 12. The self-locking key 12 has a locked state and an unlocked state. When the self-locking key 12 is in the locked state, the start switch 5 is in the closed position and cannot be moved to the open position. When the self-locking key 12 is in the unlocked state, the start switch 5 is free to switch between the closed position and the open position. The self-locking key 12 is located specifically at the junction of the handle 106 and the body portion 108 and is adjacent to the side of the activation switch 5. The position of the self-locking key 12 is arranged to facilitate one-hand operation when the user uses the high-pressure cleaner 1.

FIG. 3 is a schematic perspective view of the self-locking key 12. The self-locking key 12 includes a key body portion 121 including a pressing unit 1213 and a blocking unit 1215 which are disposed at an angle. The pressing unit 1213 has a hollow inner cavity and is generally cylindrical. The blocking unit 1215 is connected or integrated with one end of the pressing unit 1213. type. The blocking unit has a first position in which the self-locking key is in a locked state and a second position in which the self-locking key is in an unlocked state. Specifically, the self-locking key 12 further includes an elastic member 123 that is abutted between the housing and the pressing unit. The elastic member 123 acts on the pressing unit 1213, and blocks the pressing unit when the pressing unit presses the elastic member to be in a compressed state. The component is in the second position and the self-locking key 12 is in the unlocked state. Specifically, the elastic member 123 acts on the pressing unit 1213. When the pressing unit 1214 is pressed, the elastic force of the elastic member 123 is overcome, and the blocking unit 1215 is moved between the locked position and the unlocked position when the blocking unit is located at the first position. The elastic member 123 is in a non-compressed natural state, and the self-locking key 12 is in a locked state. When the blocking unit is in the unlocked position, the elastic member 123 is in a compressed state, and the self-locking key 12 is in an unlocked state. In this embodiment, the elastic member 123 is disposed in the inner cavity of the pressing unit. Of course, in other embodiments, the elastic member 123 may be sleeved on the pressing unit as long as the restoring force of the pressing unit can be provided.

Fig. 4 (a) is a cross-sectional view showing the self-locking key 12 in a locked state. In this embodiment, the start switch 5 includes a locking portion that cooperates with the blocking unit 1215 of the self-locking key 12. When the self-locking key 12 is in the locked state, the blocking unit 1215 abuts the locking portion of the start switch 5, and the switch 5 is activated. The high pressure washing machine cannot be moved to the open position; when the self-locking key 12 is in the unlocked state, the locking portion of the starting switch 5 is no longer resisted by the blocking unit 1215, and the starting switch 5 can be moved to the open position to open the high pressure washing machine. Specifically, when the self-locking button 12 is in the locked state, the elastic member 123 is in a non-compressed natural state, and the blocking unit 1215 just abuts against the first locking portion 501 of the activation switch 5, and the activation switch 5 cannot be moved to the X direction. position. Fig. 4 (b) is a cross-sectional view showing the self-locking key 12 in an unlocked state. When the external force presses the unit 1213, the elastic member 123 is compressed in the Y direction by an external force and moved by a distance, and the blocking unit 1215 also moves the same distance in the Y direction, and the key body portion moves in the predetermined direction Y with respect to the housing. At this time, the first locking portion 501 of the start switch 5 is no longer resisted by the blocking unit 1215, and the start switch 5 can be moved to the open position in the X direction, thereby triggering the external water source to enter the pump 4 and trigger the motor 2 to rotate. In the present embodiment, the moving direction X of the start switch 5, that is, the moving direction X of the locking portion is substantially perpendicular to the moving direction Y of the self-locking key 12. This structural design simply and effectively prevents the user from unintentionally triggering the start switch 5 to activate the high pressure cleaner 1.

Fig. 4(c) is a cross-sectional view showing the self-locking key 12 in an unlocked state and the start switch turned on. The first locking portion 501 of the start switch 5 and the second locking portion 502 have a hollow portion 503 that is recessed inward. When the start switch 5 is in the open state, the blocking unit 1215 is at least partially located in the hollow portion 503 of the start switch 5. After the external force of the pressing unit 1213 is revoked, the key body portion 121 has a tendency to move in the opposite direction of the Y direction under the elastic restoring force of the elastic member 123. However, due to the blocking action of the first locking portion 501 of the activation switch 5, the self-locking key 12 cannot move in the opposite direction of the Y direction to return to the locked state. Only When the start switch 5 is moved to the position of the off state in the opposite direction of the X direction, the blocking unit 1215 is no longer at least partially accommodated in the hollow portion 503, and the locking portion 501 no longer hinders the movement of the blocking unit 1215 in the opposite direction of the Y direction. The self-locking key 12 can be restored to the locked state by the action of the elastic member. The structural design, the user only needs to press the self-locking button once to unlock the self-locking when starting the high-pressure cleaner, so that the self-locking key is moved from the locked state to the unlocked state, and then the start switch 5 is triggered to start the high-pressure cleaner 1 The self-locking key 12 does not automatically restore the self-locking state. The self-locking key 12 is automatically restored to the locked state only when the start switch 5 is returned to the off state.

Fig. 5(a) is a schematic view showing the specific operation of starting the high pressure cleaner 1. The activation of the high pressure cleaner 1 includes two actions, first requiring unlocking the self-locking key 12 and then triggering the start switch 5. The thumb of the user's one hand 72 is placed on one side of the handle 106, and the other four fingers extend from the other side of the handle 106 and contact the start switch 5, which just grips the handle 106. When the high-pressure cleaner 1 is started, the thumb applies pressure to the pressing unit 1213, and the self-locking key 12 is converted from the locked state of FIG. 4(a) to the unlocked state of FIG. 4(b). After the self-locking button 12 is in the unlocked state, the other four fingers squeeze the start switch 5, so that the start switch 5 moves toward the handle direction from the start switch off state in FIG. 4(b) to the start switch open state in FIG. 4(c). . After the high pressure cleaner 1 is turned on, the thumb of the user's one hand 72 can no longer press the self-locking button 12, but it is necessary to keep the start switch in the open position at all times. A schematic diagram of the state is shown in Figure 5(b). Of course, the thumb of the user's one hand 72 can also continue to be placed on the self-locking key 12. When the high pressure cleaner 1 needs to be turned off, the user only needs to release the four fingers and the start switch 5 is restored to the closed position. During the return of the start switch 5 to the closed position, the first wall 501 moves in the opposite direction of X, and the blocking unit 1215 is automatically restored to the unlocked state of FIG. 4(c) by the restoring force of the elastic member 123 to FIG. 4 ( a) self-locking state.

In order to be more ergonomic and to improve the comfort of the user when operating with one hand, the width of the handle 106 is less than 35 mm, and the farthest stroke between the activation switch 5 and the handle 106 is less than 25 mm. Preferably, the width of the handle 106 is 30 mm, the farthest stroke between the start switch 5 and the handle 106 is 20 mm.

In the present embodiment, the handle 106 is disposed at an angle to the body portion 108. The angle between the central axis of the handle 106 and the central axis of the body portion 108 ranges between 20° and 60°. In other alternative embodiments, the handle 106 can also be arranged substantially vertically. In this embodiment, the handle 106 is located at the tail of the machine. In other alternative embodiments, the handle 106 may also be located in the middle of the machine.

In this embodiment, the motor 2 further includes a front end portion 23 opposite to the pump 4 and a rear end portion 22 opposite to the front end portion 23. The front end portion 23 of the motor 2 extends out of the output shaft, and the rear end portion 22 is connected to a fan (not As shown in the figure, the motor 2 further includes a motor casing disposed on the outer circumference of the motor 2. The motor casing 201 is provided with a first opening at the front end portion 23, and the motor casing is provided with a second opening at the rear end portion 22. The housing 10 is provided with a first air inlet 104 at a position close to the first opening, and the first opening is in communication with the first air inlet 104, and the shell The body 10 is provided with an air outlet 13 near the fan position, and the motor 2 drives the fan to rotate, and the cooling airflow flows from the first air inlet and the first opening in sequence, passes through the inside of the motor 2, and flows out from the air outlet 13 to the outside, the first air inlet A first cooling passage for cooling the electric motor is formed between the air outlet 13 and the air outlet 13. Preferably, the first opening and the second opening (not shown) are plural, and are evenly spaced circumferentially on the front end face and the rear end face. It should be noted that the term “close” in this embodiment can be understood to mean that the component is disposed directly above the other component, or may be obliquely downward, or obliquely upward, or disposed in the circumferential direction of the other component.

With reference to FIG. 1 and FIG. 2, in the embodiment, the first air inlet 104 is disposed on the first half shell and the second half shell, and is symmetric about the connecting surface of the first half shell and the second half shell, and the air outlet 13 is disposed on the first half shell and the second half shell, and is symmetrical about the joint faces of the first half shell and the second half shell. With this arrangement, the airflow is made smoother and the symmetrical arrangement is more beautiful, and the heat generated by the rotation of the motor 2 can be radiated to the outside of the casing 10 through the air outlet 13.

In this embodiment, the fan is disposed in the motor casing 201. The motor casing 201 is spaced apart from the circumferential position of the fan by a wind hole 21, and the air hole 21 communicates with the air outlet 13. Preferably, the air holes 21 are a plurality of elongated openings, which are evenly spaced on the motor casing and extend along the circumferential direction of the fan. In other embodiments, the fan may not be disposed in the motor casing. Specifically, the fan is a centrifugal fan. When the motor drives the fan to rotate, the centrifugal fan blows the airflow from the fan center to the radial direction of the fan, passes through the circumferentially opened air hole 21, and flows out from the air outlet 13 to the outside.

Preferably, the motor 2 is mounted at a position such that the opening direction of the two oppositely disposed wind holes 21 is perpendicular to the connecting surface of the left and right half shells, and the air outlet 13 is formed directly above the air hole 21. Thus, the air outlet is located at the middle of the left and right half shells, and the air flow passage is shorter, so that the airflow flows out from the air hole 21 to the air outlet 13 and the structure is symmetrically arranged.

In this embodiment, the housing 10 of the high-pressure cleaner 1 is provided with a second air inlet 105 capable of communicating with the outside under the rear end portion of the motor 2, and the airflow flows from the second air inlet 105 through the second opening, and then passes through The rear end portion of the motor 2 dissipates heat from the rear end of the motor 2, and finally flows out from the air outlet 13 after being driven by the fan, and a second cooling for cooling the motor 2 is formed between the second air inlet 105 and the air outlet 13. aisle. In this embodiment, the brush motor is used in the motor 2, and the inflowing airflow from the second air inlet 105 further flows through the carbon brush position to dissipate heat from the carbon brush, thereby effectively improving the service life of the carbon brush.

In this embodiment, the housing 10 has a first partition plate protruding inwardly from the inner wall thereof, the first partition plate abuts against the outer wall of the motor casing in the circumferential direction, and the first partition plate is disposed in the axial direction of the motor. Between the tuyere 105 and the air outlet 13, the first baffle separates the airflow flowing out of the air hole 21 from the inflowing airflow of the second air inlet, so that the airflow flowing out of the air hole 21 flows from the second air inlet 105 Incoming airflow does not interfere, ensuring heat dissipation effect.

Further, the housing 10 protrudes inwardly from the inner wall thereof with a second partition, the second partition abuts the outer wall of the motor casing in the circumferential direction, and the second partition is disposed first in the axial direction of the motor. Between the air inlet 104 and the air outlet 13, the second partition blocks the airflow flowing from the second air inlet 104 from the outer circumference of the motor casing to the air outlet 13, so that the airflow flowing from the second air inlet 104 is concentrated from the front end opening through the motor. 2 Internal, flowing out of the air outlet 13, enhances the heat dissipation to the internal rotor of the motor.

The high-pressure cleaner 1 is cleaned by spraying water, and there is a case where splashing is used in the working condition. In order to prevent the water from entering the inside of the casing 10 through the air inlet and the air outlet, in this embodiment, the first air inlet 104 and the air outlet 13 are in a labyrinth structure, and the second air inlet 105 is disposed adjacent to the start switch 5 and The connecting position of the housing, when the switch is mounted on the hand-held high-pressure cleaner, the second air inlet 105 is blocked by the switch to prevent splashing of water. In this embodiment, the second air inlet 105 is opened at the connection position of the start switch 5 and the casing 10. The orthographic projection of the start switch 5 on the plane of the second air inlet 105 covers the second air inlet 105, and the second air inlet There is a gap between the start switch 5 and the start switch 5, and when the start switch 5 is in the start position to activate the hand-held high pressure washer, the start switch 5 blocks the second air inlet, the gap being the smallest. The above arrangement enables the start switch to block the second air inlet 105, and the gap is minimized when the start switch is activated, and the water splash is prevented from splashing into the interior of the casing through the second air inlet to ensure the heat dissipation effect.

Figure 6 (a) is a first half-shell front view of the high-pressure cleaner shown in Figure 1, Figure 6 (b) is a cross-sectional view of the air outlet 13 in the bb direction of Figure 6 (a), Figure 6 (c) is Fig. 6(a) is a cross-sectional view of the air outlet 13 in the cc direction. As shown in FIG. 6(b) and FIG. 6(c), the air outlet 13 is specifically such that the housing 10 is recessed in the heat dissipating portion to form an air outlet groove. The extension direction of the outlet groove is perpendicular to the axial direction of the motor. The bottom of the air outlet groove has a blocking plate 133. The blocking plate 133 forms a gap 131 between the side close to the motor in the extending direction of the air outlet groove and the casing 10, and is away from the motor in the extending direction of the air outlet groove. The other side is integrally connected to the housing 10. The heat generated by the motor flows from the gap 131 to the outside. As shown in Fig. 6(c), the opening direction of the casing is different from the direction of the first air inlet, and the two are arranged at an angle. In this embodiment, the concave direction of the air outlet groove is arranged at 90 with the direction of the gap opening. Of course, the angle between the concave direction of the groove and the direction of the opening of the gap can also be set to other values, such as 60°, 120°, and the like.

In this embodiment, the first air inlet 104 and the air outlet 13 have a similar structure, and the first air inlet 104 is specifically a recessed distance of the housing 10 at a position where the air outlet is opened to form an air inlet groove and an air inlet groove. The extending direction is parallel to the axial direction of the motor and is located below the motor. The bottom of the air inlet groove has a blocking plate. The blocking plate is connected to the housing at a side away from the motor in the extending direction of the air inlet groove. A gap is formed between the other side of the slot in the slot extension direction and the housing 10. In this embodiment, the first The tuyere 14 includes two inlet grooves, and the number of the outlet grooves is one, and the opposite of the blocking plate of the first inlet port adjacent to one of the inlet grooves of the motor in the extension direction of the inlet groove The sides are not connected to the housing.

In other embodiments, the number of the air inlet groove or the air outlet groove of the first air inlet and the air outlet may be set to be multiple, and each air inlet groove or air outlet groove is arranged side by side, each air inlet The bottom of the groove or the air outlet groove has a blocking plate, wherein only one air inlet groove or the air outlet groove away from the motor is connected to the housing in a side away from the motor in the extending direction thereof, and is close to the motor side. The two opposite sides of the inlet or outlet groove in the direction of their extension are not connected to the housing.

As shown in FIG. 8, as one of the embodiments of the present disclosure, the hand-held high-pressure cleaner 1 includes at least two types of gun attachments, specifically including a short gun attachment 116 and a pistol attachment 114 that are selectively mounted to the main body portion 108. The pistol attachment 114 is longer than the short gun attachment 116 in the longitudinal extension direction. As shown in FIG. 1, the main body portion 108 of the hand-held high-pressure cleaner 1 is externally connected to the short gun attachment 116. Of course, the main body portion 108 of the hand-held high-pressure cleaner 1 can also be connected to the long gun attachment 114. In the present embodiment, the long gun attachment 114 is formed by connecting the short gun attachment 116 and the extension gun 113. In another embodiment, the long gun attachment and the short gun attachment are formed as an integral retractable gun attachment (not shown), and the retractable gun attachment has a first length of the barrel formed in a stretched state and formed in a compressed state The second length of the gun.

As shown in Figs. 1, 2 and 7, in this embodiment, the high pressure cleaner 1 further has a speed governing member 7 for adjusting the rotational speed of the motor 2. The speed governing element 7 is electrically connected to the control unit 6, and the control unit 6 controls the change in the rotational speed of the motor 2 in accordance with the speed control command of the speed governing element 7. In this embodiment, the control unit 6 adjusts the duty cycle of the motor 2 to regulate the rotational speed of the motor 2, that is, the motor speed is regulated by a PWM adjustment circuit. The change in the rotational speed of the motor 2 causes a change in the cycle of the pump 4, thereby changing the discharge pressure of the high pressure cleaner 1. In other embodiments, the governor element can also regulate the pressure of the pump output stream by controlling the area of the pump outlet section.

In this embodiment, the speed regulating component 7 is specifically a gear speed regulating component, and the gear speed regulating component includes two speed gear positions, which are a high speed gear position and a low speed gear position, respectively. Therefore, the gear speed governing element is an operating member having two operating positions. Of course, the speed governing element 7 can also be provided as an operating member comprising a plurality of operating positions, wherein the plurality of operating positions correspond to different speed gear positions. In other embodiments, the governor element can also be configured as three or more operating members, three or more operating members respectively corresponding to different speed gear positions, and each operating member can be selectively operated to switch between different speed gears. Bit.

In this embodiment, the high-pressure cleaner 1 has different working modes according to the type of the gun attachment connected thereto, and the corresponding high-pressure gear or low-speed gear has different discharge pressures in different working modes.

In the present embodiment, the hand-held high-pressure cleaner 1 has two working modes. When the main body portion 108 is connected to the pistol attachment 114, the hand-held high-pressure cleaner 1 is in the first working mode, when the main body portion 108 is connected to the short gun attachment 116. The hand-held high pressure cleaner 1 is in the second mode of operation. In the first working mode, the speed adjustment range of the speed regulating element 7 is different from the speed adjustment range of the speed regulating element 7 in the second working mode. Specifically, the water discharge pressure corresponding to the high-speed gear position of the high-pressure cleaner 1 in the first working mode is different from the water discharge pressure corresponding to the high-speed gear position of the high-pressure cleaner 1 in the second working mode; the high-pressure cleaner 1 The outlet pressure corresponding to the low speed gear in the first operating mode is different from the outlet pressure corresponding to the low speed gear of the high pressure washer 1 in the second operating mode.

The retractable gun attachment (not shown) has a first length of the barrel formed in the stretched state and a second length of the barrel formed in the compressed state. In this embodiment, the length of the first length of the gun in the axial direction is greater than the length of the second length of the gun, and the first length of the barrel can also be understood as the long gun attachment of the main body connected in the first working mode, and the second length of the gun can be understood It is a short gun attachment that is connected to the main body in the second working mode. Therefore, it can be understood that when the main body portion 108 is connected to the first length of the barrel, the hand-held high-pressure cleaner 1 is in the first working mode, and when the main body portion 108 is connected to the second length of the barrel, the hand-held high-pressure cleaner 1 is in the second Operating mode. In the first working mode, the speed adjustment range of the speed regulating element 7 is different from the speed adjustment range of the speed regulating element 7 in the second working mode. The water discharge pressure at the high speed gear corresponding to the first length of the firearm connected to the main body portion is different from the water discharge pressure at the high speed gear position corresponding to the second length of the firearm connected to the main body portion. The water discharge pressure at the low speed position corresponding to the first length of the firearm connected to the main body portion is different from the water discharge pressure at the low speed position corresponding to the second length of the firearm connected to the main body portion.

When the handheld high pressure cleaner is in the first working mode, the speed regulation range of the speed governing component can be 0.6 MPa-10 MPa. When the handheld high pressure cleaner is in the second working mode, the speed regulating component can be adjusted to 0.2 MPa- 0.69 MPa.

10 When the hand-held high-pressure cleaner 1 is in the first working mode, the control unit 6 controls the motor to be in the low-speed position of the speed-regulating component 7, and the outward-out output water pressure is 0.6 MPa-2 MPa, when the hand-held pressure washer 1 is in the second working mode, the control unit 6 controls the motor to be in the low speed position of the speed regulating element 7, and the outward output water pressure is 0.2 MPa-0.55 MPa.

Specifically, when the high pressure cleaner 1 is connected to the short gun attachment 116, the hand held high pressure cleaner 1 is in the second working mode, the high pressure washing machine 1 corresponding to the high pressure washing machine 1 has a water pressure of 0.65 MPa; the low speed gear corresponds to the high pressure washing machine. The water pressure is 0.4 MPa; when the high pressure cleaner 1 is connected to the long gun attachment 114, the hand held high pressure cleaner 1 is in the first working mode, and the high pressure washing machine 1 corresponding to the high pressure washing machine 1 has a water pressure of 6 MPa, corresponding to the low speed gear The water pressure of the high pressure cleaner 1 is 1.4 MPa. In other embodiments, high The water pressure corresponding to the speed position and the low speed position can also be other parameter values. The hand-held high-pressure cleaner 1 has four different water pressure ranges, which can meet different usage requirements and expand the use scenario.

As shown in FIG. 1 to FIG. 2, a hand-held high-pressure cleaner 1 includes a substantially pistol-shaped housing 10, functional components disposed in the housing 10, and is disposed on the housing 10 for controlling the handheld The starter switch 5 of the high pressure cleaner 1 in an open state or a closed state. The casing 10 has a handle 106 for gripping, a main body portion 108 disposed at an angle to the handle 106, and a water outlet portion for discharging the water supply flow outward. In this embodiment, the housing 10 is constructed of a left and right Haval structure and is connected by a first half shell and a second half shell. The functional components are stored in the body portion 108. When the start switch 5 provided on the casing 10 is operated, the washing fluid supplied into the main body portion 108 is discharged from the head of the water discharge portion to wash the target object.

The existing seat type high-pressure cleaners on the market are bulky and heavy, and are difficult to handle when switching between various work scenes. For example, in household cleaning, if you need to clean windows, lanes, steps, and cars one by one, you need to move the machine back and forth between different locations. In an embodiment of the present disclosure, the positioning of the high pressure cleaner is a portable hand held high pressure cleaner 1. For the sake of portability, the hand-held high-pressure cleaner 1 itself does not have a water tank for storing a water source, but is connected to a water pipe (not shown) through a water inlet of the main body portion 108, and the water pipe (not shown) is connected to the external water source. The external water source may be a pond, tap water or provided by a container device similar to a water tank or a cylinder. The working scene of the hand-held pressure washer 1 mainly includes household cleaning and outdoor activities. In order to meet the portability requirements, it is necessary to balance the relationship between the weight of the whole machine, the working water pressure and the working water flow rate, the effective cleaning efficiency, and the duration of the cleaning.

In one embodiment of the present disclosure, the handheld high pressure cleaner 1 is powered by direct current, which is a battery pack 9. The battery pack 9 is disposed at one end of the handle 106 remote from the main body portion 108. The functional components include a motor 2 disposed within the housing 10, a pump 4 driven by the motor 2 to deliver water flow outwardly, and a transmission mechanism 3 coupled between the motor 2 and the pump 4. The functional component is driven by the power supplied by the battery pack 9, and the heavier the weight of the functional component, the greater the amount of power required by the battery pack 9, and the heavier the weight of the battery pack 9.

In an embodiment, the weight of the functional component is less than or equal to 2500 g, and the weight of the single battery pack 9 is less than or equal to 1500 grams; in another embodiment, the weight of the functional component is less than or equal to 1200 grams, and the weight of the single battery pack 9 The weight is less than or equal to 1000 grams. The weight of the battery pack 9 is determined by the number of battery packs 9 and the configuration of the battery pack 9. In the embodiment of the present disclosure, one or more battery packs 9 are provided, and the battery pack 9 has a rated voltage of 18 to 56V. In one of the embodiments, the number of the battery packs 9 is one, and the battery pack 9 is configured to have a rated voltage of 18 V and a rated capacity of 2 Ah, at which time the weight of the battery pack 9 is 360 g. Of course, in other embodiments, according to the different requirements of the hand-held high-pressure cleaner 1 for cleaning performance, the rated voltage of the battery pack 9 can also be 36V or 42V. The fixed capacity can also be 1.5 Ah or 4 Ah. At this time, the weight of the battery pack 9 is slightly adjusted due to the configuration of the battery pack 9. Further, in the embodiment of the present disclosure, the battery pack 9 is a detachable rechargeable lithium battery pack, and the lithium battery pack is at least adapted to be connected to different kinds of DC tools to realize different types of DC tools to share the battery pack 9 To reduce user usage costs. It should be noted that the battery pack 9 may not be a lithium battery, but a nickel-hydrogen battery or a nickel-chromium battery.

Of course, the weight of the whole machine is affected by the weight of other parts in addition to the weight of the functional parts and the battery pack 9. In one embodiment, the total weight of the other components is less than or equal to 500 grams, and more preferably, the total weight of the other components is less than or equal to 400 grams or 300 grams. The lighter weight is an important criterion for measuring whether the handheld high pressure cleaner 1 meets the portability conditions. If the weight of the machine is too heavy, as the operator holds the machine and the working time is lengthened, the operator's discomfort will increase and the operator experience will be greatly reduced. The table shown in Figure 3 is to let different weights of the machine make use experience for different operators. It should be noted that the data shown in Figure 3 is based on each operator holding different weights of machines at different time periods. The average value obtained by performing multiple tests, and in the test state, the machine is in a startup state, and the holding time is a time node that the operator feels uncomfortable. The data in the table of Figure 3 can be obtained when the weight of the machine is greater than or equal to 1kg and less than or equal to 2kg, the operator holds for a long time; when the weight of the machine is greater than 2kg and less than or equal to 6kg, the operator holds The time is slightly reduced; when the weight of the machine is greater than 6 kg, the time the operator holds is significantly shortened. Therefore, for the operating surface, the lighter weight of the whole machine is also an important factor for ensuring that the hand-held high-pressure cleaner 1 continues to perform cleaning work. It should be noted that the weight of the whole machine should be understood as the total weight of the battery pack 9 after being connected to the casing 10, and does not include the weight of the water pipe and the water.

Handheld high pressure cleaners 1 are suitable for a wide range of work scenarios, including cleaning balconies, walkways, outdoor tables and chairs, cars, bicycles, garages, pets, garden tools, windows, swimming pools, outdoor steps, and more. Different working scenarios have different requirements for the working water pressure and working water flow outputted by the hand-held high pressure cleaner 1 . Among them, the working water pressure refers to the ability to clean the dirt. Under a constant working water flow rate, the greater the working water pressure, the greater the impact of the water flow on the target object per unit area, and the more the peeling rate of the dirt from the surface of the target object. fast. Depending on the target object to be cleaned, the required working water pressure will also change; the working water flow rate refers to the efficiency of cleaning the dirt. Under a constant working water pressure, the working water flow rate is larger, and the time to clean the target object is completed. The shorter. It should be noted that the above constant working water flow rate and constant working water pressure can be understood as being able to cooperate with the corresponding working water pressure or working water flow rate to perform the minimum value of cleaning the target object.

The battery pack 9 life time means that the battery pack 9 can maintain the normal operation time of the hand-held high-pressure cleaner 1. Among them, the battery pack 9 life time is not only related to the configuration of the battery pack 9 itself, but also is high by hand. The effect of the operating mode of the pressure washer 1. The same capacity of the battery pack, when the handheld high pressure cleaner 1 works with high working water pressure, and the working water flow is also large or one of the working water pressure and the working water flow is larger, then compared with the working water pressure With a handheld high-pressure cleaner with a small working water flow, the battery pack's battery life will be shortened. The hand-held high-pressure cleaner provided by the embodiment of the present disclosure has a working water pressure of 0.2 MPa to 10 MPa and an output water flow of 1.5 L/Min to 8 L/Min.

The overall weight of the DC handheld high pressure cleaner 1 is mainly determined by the weight of the functional components and the weight of the battery pack 9. The weight of the functional components is primarily determined by the weight of the motor 2 and the pump 4. In an embodiment of the present disclosure, the pump 4 is provided with a pump body and a plunger for use as a reciprocating assembly housed in the pump body. The rotational movement of the motor 2 is converted into a reciprocating motion by the transmission mechanism 3, and the transmission mechanism 3 is located between the motor 2 and the pump 4.

The number of plungers of the pump of the high pressure cleaner may be two or more. In one embodiment, the pump 4 is a small volume single plunger pump that includes a pump body 46 and a single plunger 45 disposed within the pump body 46. A single plunger 45 is used as a reciprocating assembly housed in the pump body 46 for free reciprocation. The rotational motion of the motor 2 is converted into a reciprocating motion of the plunger 45 by the transmission mechanism 3. The transmission mechanism 3 is connected between the motor 2 and the pump 4.

Compared to multi-piston pumps, single-pump pumps have only one high-pressure chamber. During one reciprocating cycle, the pump is half-cycled and the other half is drained, that is, each of the single-piston pumps. Half of the cycle is not pumped. Therefore, the single-plunger pump has a problem that the displacement is small and the water cannot be continuously sprayed. This requires increasing the speed of the motor to a certain range so that the water sucked in the other half cycle is discharged throughout the cycle. However, this causes the pumping pressure of the pump to pulsate greatly and requires a large amount of power, which is bound to consume a lot of energy. In order to overcome the above problems, and in order to ensure the weight of the whole machine, the range of the working water pressure, the range of the working water flow rate, and the continuous cleaning time duration under the direct current current supply, in the embodiment of the present disclosure, A single plunger pump for use in the hand-held high pressure cleaner 1 is provided, which not only realizes continuous pumping, but also has a lighter weight, consumes less motor power, and has a longer battery pack 9 power supply time.

As shown in FIG. 4 to FIG. 6, in the present embodiment, the single plunger pump 4 further includes a water inlet 430 and a water outlet 440 disposed on the pump body 46, and a high pressure chamber connected to the water inlet 430 and the water outlet 440. room. The high pressure chamber includes a first high pressure chamber 47 and a second high pressure chamber 48 connected to both ends of the pump body 46, and the water inlet 430 and the water outlet 440 are in communication with the first high pressure chamber 47 and the second high pressure chamber 48, respectively. In order to make the hand-held high-pressure cleaner more compact and portable, special consideration must be given to the arrangement relationship of the pump 4 and the motor 2 in the housing. For the convenience of description, the front, rear, upper, and lower directions shown in FIG. 2 are the front, the rear, the upper, and the lower, and the direction perpendicular to the paper surface of FIG. 2 is the width direction of the outer casing, but the above definition is only The description is not to be construed as limiting the embodiments of the present disclosure. In the present embodiment, the rotating shaft of the motor 2 is arranged in the front-rear direction, and the pump 4 is disposed directly in front of the motor 2. In order to make the length of the functional component in the front-rear direction as small as possible, the pump 4 is disposed in a direction perpendicular to the rotational axis of the motor, and when the rotational axis of the motor 2 is in a horizontal position, the plunger 45 is in a vertical state in the up and down direction, The pump 4 has an opening on the side close to the motor for connection with the motor rotating shaft to drive the plunger 45 to reciprocate. When the hand-held high pressure cleaner is in the normal use state, the first high pressure chamber 47 and the second high pressure chamber 48 are disposed at upper and lower ends of the pump body 46, and the pump 4 is disposed in the housing 10 in the up and down direction. In the above arrangement, the length of the hand-held high-pressure cleaner 1 in the front-rear direction is the smallest, and the center of gravity is closer to the grip portion of the handle 101, and the operation is comfortable and the structure is compact.

The pump body 46 is provided with a water inlet branch, a water outlet branch and a plunger hole penetrating through the pump body 46. The plunger 45 is disposed in the plunger hole, and the water inlet branch (431, 432) is connected to the water inlet 430. The water outlet branch (441, 442) is in communication with the water outlet 440, and both the inlet water branch and the outlet water branch 441 are in communication with the first high pressure chamber 47 and the second high pressure chamber 48.

The transmission mechanism 3 drives both ends of the plunger 45 to reciprocate in the first high pressure chamber 47 and the second high pressure chamber 48. The two ends of the plunger 45 are reciprocated in the first high pressure chamber 47 and the second high pressure chamber 48 under the transmission of the transmission mechanism 3, and the plunger 45 alternately presses the first high pressure chamber during the reciprocating motion. 47 and the second high pressure chamber 48 allow the pump 4 to continuously pump water out, which is a doubling of pumping efficiency compared to a single high pressure chamber plunger pump. It is ensured that the pump always has a high pressure chamber in a state of being squeezed in one cycle, thereby achieving continuous pumping.

Specifically, the plunger 45 is a column extending in the longitudinal direction for pressurizing water, and is arranged in the up and down direction of the high pressure cleaner shown in FIG. 2, and the length extension direction of the plunger 45 and the opening of the water inlet 430 are respectively respectively. The direction is perpendicular to the opening direction of the water outlet 440, and both ends of the plunger 45 respectively extend into the first high pressure chamber 47 and the second high pressure chamber 48, and the plunger 45 can be driven to be at the first high pressure along its length. The chamber 47 and the second high pressure chamber 48 reciprocate. Preferably, the pump body 46 is integrally formed, which avoids the assembly problem of assembling multiple parts and is not easy to leak water. Of course, in other embodiments, the pump body 46 can also be formed by splicing a plurality of components.

The first high pressure chamber 47 and the second high pressure chamber 48 are connected to the water inlet 430 and the water outlet 440, respectively. Specifically, the first high pressure chamber 47 is connected to the water inlet branch 431 and connected to the water outlet branch 441. The second high pressure chamber 48 is connected to the water inlet branch 432 and is connected to the water outlet branch 442. Please continue to refer to Figures 5 and 6. The first high pressure chamber 47 includes a water inlet a and a water outlet b, and a high pressure chamber c, and the water inlet a and the water outlet b are in communication with the high pressure chamber c. The first high pressure chamber 47 is also provided with a passage d (not shown) which communicates the water inlet a and the water outlet b and the high pressure chamber c. Second high pressure chamber 48 is disposed at the other end opposite to the first high pressure chamber 47, and the second high pressure chamber 48 is symmetric with respect to the center of the pump body 46 with the first high pressure chamber 47. Similarly, the second high pressure chamber 48 includes a water inlet a' (not shown) and a water outlet b' (not shown), and a high pressure chamber c', a water inlet a' and a water outlet b' and a high pressure The cavity c' is connected in communication.

The setting of the high pressure chamber needs to take into account the volume and volumetric efficiency of the pump. If the high pressure chamber is too large, it not only causes the volume of the pump to become large, but also causes too much cavity, the volumetric efficiency of the high pressure chamber becomes small, the water absorption capacity is poor, and the corresponding efficiency and volume ratio are reduced, so the size of the high pressure chamber is just enough to accommodate. The position of the two extremes during the reciprocating movement of the plunger is preferred. Defining the distance between the two extreme positions of the plunger is the stroke of the plunger. In this embodiment, the diameter of the high pressure chamber c or c' is 0.5 mm to 2 mm larger than the diameter of the plunger, and the high pressure chamber c or c' is in the column. The length of the reciprocating direction of the plug is 0.5 mm to 2 mm larger than the stroke of the plunger. In the present embodiment, the aperture of the high pressure chamber c or c' is larger than the diameter of the plunger 45 by 1 mm, and the length of the high pressure chamber c or c' in the reciprocating direction of the plunger is larger than the stroke of the plunger by 1 mm.

Preferably, the plunger 45 is made of a metal material, and the two ends of the plunger 45 are hollow and filled with a material having a lower density, so that the mass of the plunger can be alleviated, thereby reducing the overall operation of the plunger 45 during the reciprocating motion. The vibration problem also reduces the power of the propulsion plunger and reduces energy consumption. In this embodiment, the filling material is plastic, and in other embodiments, a resin or a light metal such as aluminum may also be used.

The stroke and diameter of the pump 4 and the number of reciprocations of the reciprocating motion determine the flow rate of the pump. In order to explain in detail the relationship between the parameters of the pump, for the present embodiment, the diameter of the plunger is defined as D (unit: mm), the stroke of the plunger is S (unit: mm), and the reciprocating frequency of the plunger movement is N (rpm). The flow rate of the pump is B (unit L/min). Then, B = D × S × N × k, and k represents a coefficient (constant). Therefore, when the reciprocating frequency of the plunger is constant (when the rotational speed of the driving motor is constant), in order to achieve a predetermined discharge flow rate B (L/min), it is necessary to increase the diameter D but reduce the stroke S, or reduce the diameter D but increase the stroke. S.

However, the larger the diameter of the plunger 45, the larger the width of the pump 4 is, and the larger the stroke of the plunger causes the length of the pump 4 to become longer. How to set the diameter D and stroke S of the plunger under the premise that the preset flow rate B is satisfied. The volume of the pump 4 is determined, which directly affects the portability of the hand-held pressure washer. Moreover, as the diameter increases, the area of pushing out of the plunger 45 increases, and the required thrust increases accordingly. To increase the thrust, the motor requires more power (a larger volume of the motor), and the pump that receives the reaction force The body must be strengthened. In this way, the width of the hand-held high-pressure cleaner becomes large, and the cost is disadvantageously increased. On the other hand, when the stroke S is increased, the amount of movement of the plunger 45 is increased, causing the pump 4 to increase in the length direction, and in the case where the reciprocating frequency of the pump is constant, the stroke S is increased, and the moving speed of the plunger is also increased. It is necessary to use a material having higher wear resistance, which leads to an increase in cost.

In this embodiment, in order to change the pressure of the hand-held high-pressure cleaning machine 1 within a certain range, It is adjustable that the rotational speed of the motor 2 is adjustable, that is to say that the frequency N of the reciprocating motion of the pump 4 varies within a certain range. Specifically, when the frequency N of the reciprocating motion is increased, the amount of pushing is decreased, and the diameter of the plunger 45 needs to be decreased. If the length of the plunger is not increased, the size of the plunger 45 is correspondingly decreased, and the flow rate B of the pump 4 is decreased. On the other hand, when the frequency N of the reciprocating motion is decreased, the amount of pushing is increased, so that the size of the plunger 45 is unfavorably increased, the flow rate of the pump 4 is correspondingly decreased due to the decrease in frequency, and the frequency which is too low is the cause of the oscillation. Therefore, too small a reciprocating frequency is not suitable. On the other hand, for the pump 4 with a certain parameter, the discharge flow rate does not increase with the increase of the reciprocating frequency N, but increases with the increase of the exercise frequency below a certain exercise frequency, when the movement is higher than a certain movement. The frequency discharge flow rate not only does not increase significantly but decreases as the reciprocating frequency N increases. This is because the pump 4 needs a certain water absorption time in a reciprocating cycle, that is, the pump 4 has a certain self-priming time, and the self-priming time is reserved for the reciprocating cycle, and the pump 4 can effectively utilize the high pressure when it absorbs water. If the volume of the chamber is too short, the water absorption time is not enough, and the high pressure chamber of the pump 4 starts to drain without being filled with water, resulting in a decrease in flow rate.

Therefore, it is necessary to appropriately set the diameter D (mm) of the plunger, the stroke S (mm), and the frequency N (rpm) of the reciprocating motion in consideration of the size, cost, and discharge flow rate B (L/min) of the pump. In the embodiments of the present disclosure, the inventors have obtained the size parameters of the pump which can minimize the volume and cost while allowing the discharge flow rate and pressure of the pump to meet the household cleaning demand. The ratio of the flow rate of the pump to the volume of the pump is defined as the flow volume ratio of the pump. This parameter reflects the relationship between the pumping capacity of the pump and the volume of the pump. Those skilled in the art hope that the larger the flow rate of the pump, the better. The ability is strong, and at the same time, the smaller the pump volume, the better, so that the handheld high-pressure cleaner is more portable, so the flow volume ratio is more advantageous than this parameter. In the embodiment of the present disclosure, the inventors have found through research that the stroke range of the plunger 45 is 3-16 mm, and the diameter of the plunger is 6-16 mm, for the mechanical strength and assembly consideration of the length of the plunger. The optional range is 45-100mm, so the volume of the pump ranges from 63000mm^3-85000mm^3, and the flow-to-volume ratio ranges from 1.4-1.9. In the present embodiment, the length of the plunger is 58 mm, the stroke of the plunger 45 is 5.4 mm, and the diameter of the plunger is 12 mm, and the maximum flow volume ratio of 1.9 is obtained. In other optional embodiments, the length of the plunger can also be selected from 54mm, 60mm, 62mm, 68mm, 90mm, the stroke of the plunger is 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and the diameter of the plunger is 8mm, 10mm, 14mm. , 16mm.

7 to 9, the transmission mechanism 3 includes an eccentric mechanism 31 for converting the rotational motion of the motor into the reciprocating motion of the plunger. In the present embodiment, in the side portion of the longitudinal direction of the vertical plunger 45, the plunger 45 is provided with a connecting portion 450 to which the eccentric mechanism 31 is attached, and the eccentric mechanism 31 is connected to the plunger 45 through the connecting portion 450, and the connecting portion is located substantially at the plunger 45. The middle position of the length extension direction. Specifically, the connecting portion 450 is a concave cavity that is recessed inward, and the connecting portion 450 is located at an intermediate position of the plunger 45, of course To allow for an error of plus or minus 5mm. Preferably, the eccentric mechanism 31 is coupled to the connecting portion 450 via a connecting bearing 311. The manner of connection is not limited to the connection of the bearing 311, and may also include a flat fit, a spline fit, and the like. In other embodiments, the connecting portion 450 may also be provided as a protrusion on the side of the plunger, and the eccentric mechanism is coupled to the protrusion to drive the plunger to reciprocate. Specifically, the protrusion on the side of the plunger is sleeved with the connecting bearing, and the eccentric mechanism forms a rolling friction with the outer surface of the connecting bearing to drive the plunger to reciprocate.

The specific speed reduction mechanism 32 is a gear reduction mechanism, and more specifically, the gear reduction mechanism is a planetary gear reduction mechanism. Referring to FIG. 9, the planetary gear reduction mechanism includes a constant wheel 320,

planetary gears

322 and 324, and an internal gear 321 fixedly disposed on the output shaft of the motor. The

planetary gears

322 and 324 include two gears of the same size and a planet. The

wheels

322 and 324 are meshed with the sun wheel 320 and the internal gear 321 respectively, and are fixedly coupled to the eccentric mechanism 31. When the motor output shaft rotates, the planetary gear is driven to move around the inner gear in a circular motion. Thereby, the eccentric mechanism 31 is caused to perform a rotary motion. In the embodiment, the speed reduction mechanism 32 further includes a speed reduction box, and the half shell of the speed reduction box is integrally formed by the pump body, thereby avoiding the separate design of the speed reduction box, so that the speed reduction mechanism is closely connected with the pump body, thereby avoiding increasing the front and rear direction of the pressure washer. The length makes the high-pressure cleaner shorter in the front-rear direction, and the planetary gear is used for deceleration. The star wheel and the electrode output shaft are fixedly set. When the reduction ratio is constant, the volume of the speed reduction mechanism can be minimized, thereby making the high-pressure cleaner More compact and portable.

In other embodiments, the transmission mechanism may not be provided with a speed reduction mechanism, that is, the eccentric mechanism is directly driven by the low speed motor directly.

In the above embodiment, the plungers 45 are all connected to the eccentric mechanism 31, and the eccentric rotational motion of the eccentric mechanism 31 drives the plunger 45 to linearly reciprocate along its longitudinal direction. Of course, embodiments of the present disclosure are not limited to the plunger 45 being coupled to the eccentric mechanism 31, and the plunger 45 may be coupled to other mechanisms to effect linear reciprocating motion along its length.

Figure 10 shows another embodiment. The transmission mechanism specifically includes a crank link mechanism 33 that is coupled to the crank link mechanism 33. The crank link mechanism 33 includes a link 331 and a crank 332 that are connected to each other. One end of the link 331 is connected to the crank 332, and the other end of the link 331 is connected to the plunger 45. One end of the crank 332 is connected to the link 331, and the other end of the crank 332 is connected to the transmission mechanism 3. The junction of the link 331 and the crank 332 constitutes a pivot point 333 such that the link 331 and the crank 332 are relatively rotatable about the pivot point 333. As shown in Fig. 10, the crank link mechanism 33 is capable of converting the rotational motion of the motor into a reciprocating motion of the plunger 45 in its longitudinal direction.

In the case that the input speed range of the pump and its associated rotary-reciprocating conversion structure is constant, compared with the direct use of the low-speed motor whose output speed is within the input speed range, the reasonable cooperation of the deceleration structure and the high-speed small motor can be significant. Reduce the weight and volume of the feature. In this embodiment, the motor 2 The no-load rotation speed is 10000 rpm or 12000 rpm or 15000 rpm or 20000 rpm, and the idling output speed of the deceleration structure of the transmission mechanism 3 is 3000 rpm or 2500 rpm or 2200 rpm or 2100 rpm or 2000 rpm. The reduction ratio of the deceleration structure of the transmission mechanism 3 is between 12:1 and 3:1, such as about 10:1, 8:1, 7:1, 6:1, 5:1, 4:1, and the like.

Compared with a hand-held high-pressure cleaner that directly uses a low-speed motor-driven pump to pump water, a hand-held high-pressure cleaner that drives a single-piston pump to pump water through a high-speed small motor and a gear reduction mechanism, the motor and the pump The weight can be effectively optimized, thereby reducing the overall weight of the hand-held high-pressure cleaner and improving the portability of the hand-held pressure washer 1. Specifically, the weight of the functional component is about 800 grams, and the rated power of the motor is 135 watts to 200 watts. The motor is driven by the power of the battery pack. The number of battery packs is one. The battery pack has a rated voltage of 18V, a rated capacity of 2Ah, and a weight of the battery pack of about 360 grams. Therefore, in the embodiment of the present disclosure, the weight of the handheld high-pressure cleaner has a weight ranging from 1.5 kg to 2.5 kg. Under the weight range of the whole machine, the working pressure of the hand-held high-pressure cleaner is 0.2Mpa~6Mpa, and the working water flow output to the outside is 1.5L/Min~8L/Min. The high pressure cleaner is in an open state, and the water outlet continuously discharges water for 10 to 60 minutes. In one embodiment, the handheld high pressure cleaner outputs an external working water pressure of 2.1 MPa, the outward output working water flow rate is 2.5 L/min, the number of battery packs is one, and the battery pack is rated at 18 volts. The rated capacity is 2Ah. At this time, when the hand-held high-pressure cleaner is in the open state, the water outlet continuously discharges the water for 10 minutes. The weight of the hand-held high-pressure cleaner can be 1.7 kg. Of course, the working water pressure of the hand-held high-pressure cleaner can also be 0.3Mpa, 0.4Mpa, 0.5Mpa, 0.8Mpa, 1Mpa, 1.2Mpa, 1.4Mpa, 1.5Mpa, 1.8Mpa, 2Mpa, 2.2Mpa, 2.4Mpa. , 2.5Mpa, 2.6Mpa, 2.8Mpa, 3.0Mpa, 3.3Mpa, 3.5Mpa, 3.6Mpa, 3.8Mpa, 4Mpa, 4.5Mpa, 5Mpa, 5.5Mpa, 6Mpa, etc.; Working water flow output from the handheld high pressure cleaner Also available in 1.5L/Min, 1.6L/Min, 1.7L/Min, 1.8L/Min, 1.9L/Min, 2L/Min, 2.2L/Min, 2.4L/Min, 2.5L/Min, 2.6L/ Min, 2.8L/Min, 3.0L/Min, 3.2L/Min, 3.3L/Min, 3.4L/Min, 3.5L/Min, 3.8L/Min, 4L/Min, 4.5L/Min, 5L/Min, 5.5L/Min, 6L/Min, 6.5L/Min, 7L/Min, 7.5L/Min, etc.

In another embodiment, the pump is a three-piston pump (not shown), and the three-piston pump (not shown) includes a pump body and three plungers disposed in the pump body, three plungers Reciprocating with a phase difference of 120 degrees from each other. Optimize the weight of the handheld high pressure cleaner by driving a three-piston pump with a high speed small motor. The rotary motion of the motor is converted into a reciprocating motion of the plunger by a transmission mechanism. Compared with the hand-held high-pressure cleaner of the single-piston pump in the above embodiment, the pumping efficiency is improved in the three-piston pump, of course, three plungers reciprocate, and between the three plungers and the pump body. The sliding resistance will be larger and the energy consumption will increase. A relatively large rated power motor is required to overcome the sliding resistance of the three plungers. Compared with the direct use of a larger volume, heavier low speed motor, the embodiment of the present disclosure significantly reduces the weight and volume of the functional components by a reasonable fit of the speed reduction mechanism and the high speed small motor. In this embodiment, the transmission mechanism includes a gear reduction mechanism and a swash plate mechanism disposed between the gear reduction mechanism and the pump body. The no-load rotation speed of the motor 2 is 10000 rpm or 12000 rpm or 15000 rpm or 20,000 rpm, and the idling output rotation speed of the deceleration structure of the transmission mechanism 3 is 3000 rpm or 2500 rpm or 2200 rpm or 2100 rpm or 2000 rpm. The reduction ratio of the deceleration structure of the transmission mechanism 3 is between 12:1 and 3:1, such as about 10:1, 8:1, 7:1, 6:1, 5:1, 4:1, and the like. The swash plate mechanism drives the fixed connection structure to reciprocate the plunger within the pump body. This design replaces the heavier low-speed large motor with a lighter high-speed small motor and gear reduction mechanism to reduce the weight of the functional components.

Specifically, in this embodiment, since the motor requiring a larger power drives the three-piston pump to continuously pump water, the rated power of the motor is 300 watts to 500 watts, and the weight of the functional components is slightly increased, and is less than or equal to 2,500. Grams, the weight of a single battery pack is less than or equal to 1500 grams. Handheld high pressure cleaners range in weight from 3 kg to 5 kg. In this embodiment, under the weight range of the whole machine, the working pressure of the hand-held high-pressure cleaner is 3Mpa~10Mpa, and the working water flow output to the outside is 3L/Min~8L/Min. When the hand-held high-pressure cleaner is in the on state, the water outlet continuously discharges the water for 10 to 120 minutes. Preferably, the rated power of the motor is 360 watts, and the weight of the functional component is 1300 grams. The number of battery packs is two, each battery pack has a rated voltage of 18V and a rated capacity of 2Ah. The two battery packs are connected in series, and the common discharge provides a driving power for the motor. The total weight of the two battery packs is 750 grams or less, and the weight of the handheld high pressure cleaner is 3 kilograms.

In one embodiment, the three-piston pump handheld high-pressure cleaner outputs an external working water pressure of 3.3 MPa, and the outward output working water flow rate is 4 liter/min. At this time, when the handheld high-pressure cleaner is at When it is turned on, what is the time when the water outlet continuously discharges water? ? minute. Of course, the working water pressure of the handheld high pressure cleaner can also be 3Mp, 3.2Mp, 3.4Mp, 3.6Mp, 3.8Mp, 4Mp, 4.2Mpa, 4.4Mpa, 4.6Mpa, 4.8Mpa, 5Mpa, 5.5Mpa, 5.8Mpa, 6Mpa, 6.2Mpa, 6.4Mpa, 6.6Mpa, 6.8Mpa, 7Mpa, 7.5Mpa, 7.8Mpa, 8Mpa, 7Mpa, 8.5Mpa, 9Mpa, 9.5Mpa, etc.; Working water flow output from handheld high pressure cleaner It can also be 3.3L/Min, 3.4L/Min, 3.6L/Min, 3.8L/Min, 3.9L/Min, 4.1L/Min, 4.2L/Min, 4.4L/Min, 4.5L/Min, 4.6L. /Min, 4.8L/Min, 4.9L/Min, 5L/Min, 5.5L/Min, 6L/Min, 6.5L/Min, 6.8L/Min, 7L/Min, 7.5L/Min, 7.8L/Min, etc. .

It should be noted that the hand-held high-pressure cleaner of the single-piston pump is not only capable of outputting a working water pressure of 0.2Mpa to 6Mpa, and a working water flow of 1.5L/Min to 3.5L/Min. Single plunger pump The working water pressure and working water flow rate provided in the disclosed embodiments are the optimal parameter ranges provided when the weight of the whole machine ranges from 1.7 kg to 2.5 kg. Similarly, the working water pressure and working water flow rate provided in the disclosed embodiment of the handheld high pressure cleaner of the three-piston pump are in the range of 3 kg to 5 kg in weight of the whole machine, and the optimal parameter range is provided.

The effective cleaning power k of the high pressure cleaner is equal to the working water pressure P multiplied by the working water flow rate Q. Evaluation of the cleaning effect of the high pressure cleaner generally depends on the effective cleaning power, the greater the effective cleaning power, the better the cleaning effect. However, under the same effective cleaning power, the working water pressure and the working flow are inversely proportional. To improve the cleaning effect, those skilled in the art generally require both to increase at the same time, but if both are increased at the same time, it is necessary Increasing the power of the motor, increasing the weight of the whole machine, and the battery life of the battery pack are also reduced, which is contrary to the concept of the portable hand-held high-pressure cleaner positioned in the embodiment of the present disclosure. In the embodiment of the present disclosure, the inventor has found through many studies that the cleaning effect of the hand-held high-pressure cleaner 1 not only needs to consider the numerical range of the working water pressure and the working water flow itself, but also needs to consider different working water pressures, working water. The ratio between the pressure and the working water flow.

Specifically, the inventors have found that when the hand-held high-pressure cleaner 1 outputs a large working water pressure, and the outwardly output working water flow is too small, the water flow emitted from the pump 4 to the outside is contacted with the air by the mist. When the hand-held high-pressure cleaner 1 is used for cleaning household and outdoor appliances, the water vapor after being atomized cannot be cleaned at all, and the hand-held high-pressure cleaner 1 becomes a sprayer at this time; When the working water pressure of the hand-held high-pressure cleaner 1 is too small, and the working water flow output to the outside is too large, in one case, the working water pressure reaches the minimum water pressure value required for cleaning the target object. On the one hand, the working water pressure is low, the cleaning ability is poor, the stain is not cleaned or even cleaned, but the stain is peeled off from the surface of the target object for a long time, which greatly consumes the battery life; on the other hand, the working water The ratio of pressure to working water flow is improper, and the working water flow is far greater than the amount of water required by the working water pressure, resulting in waste of cleaning fluid. If the supplied cleaning fluid is not derived from living water (tap water) but from the cleaning fluid stored in the tank, the cleaning fluid in the tank will be consumed in a short time. Therefore, the cleaning effect of the hand-held high-pressure cleaner needs to consider a reasonable ratio between the working water pressure and the working water flow.

Further, in the embodiment of the present disclosure, the motor 2 is powered by the battery pack 9, and the electric energy supplied from the battery pack 9 to the motor 2 is limited, and therefore, the inventors have found that the cleaning effect of the hand-held high-pressure cleaner 1 is limited. Considering the reasonable ratio between the working water pressure and the working water flow, it is necessary to select the appropriate working water flow according to the working water pressure of different sections and the battery life provided by the battery pack. In other words, when the working water pressure is relatively high, the energy consumption itself is already very large. In this case, considering the limited energy of the battery pack 9, it is necessary to control the working water flow to ensure that under a relatively high working water pressure, the corresponding Work The water flow can ensure better cleaning results without affecting the continuous working time of the washing machine. For example, when the working water pressure is 9Mpa, the corresponding optimal ratio of working water flow can be 5.1L/Min, 5.2L/Min, 5.4L/Min, 5.5L/Min, 5.6L/Min, 6L/ Min, 6.5L/Min, 7L/Min, 8L/Min. In order to pump a high water pressure water flow, the power consumption of the functional components increases, and the continuous working time of the cleaning machine has been affected. In order to prolong the continuous working time of the cleaning machine, it is necessary to obtain sufficient cleaning through a small working water flow rate. effect. Therefore, at a relatively high working water pressure, the working water flow rate can be selected to be 5.4 L/Min. When the working water pressure is relatively low, the restriction on the working water flow rate can be reduced at this time, because under the premise of satisfying the better cleaning effect, even among several optimal ratios of the working water flow rate is selected The larger discharge amount has little effect on the battery pack life. For example, when the working water pressure is 3Mpa, the corresponding optimal ratio of working water flow rate can be 2.8L/Min or 3L/Min or 3.5L/Min or 4L/Min, under relatively small working water pressure, The working water flow can be selected as 4L/Min. Because, under this working water pressure, it is able to ensure that the corresponding working water flow will clean the dirt and have little effect on the energy consumption of the battery pack 9.

Further, it should be noted that the positioning of the hand-held high-pressure cleaner 1 in the embodiment of the present disclosure is portability, and the whole machine can be operated by hand. The current high-pressure cleaners have a relatively simple function, and there are few other uses besides cleaning some household appliances or outdoor appliances. In daily life, users need to use water to clean a lot of objects, whether they can borrow the same platform to achieve various types of cleaning functions. In response to this demand, the inventors found that when bathing a pet every day, it is very inconvenient to use the shower head used by people to wash the pet, or to send the pet to the pet shop for cleaning. The inventor also finds that the flower is sprayed daily. When pouring, it also needs to be operated by another tool. The tools that satisfy these different functions not only occupy the user's use space, but also cause a lot of inconvenience to the user. In order to comply with the trend of diversification of functions, the hand-held high-pressure cleaner provided by the embodiments of the present disclosure is very suitable for concentrating the cleaning conditions of the shower pouring and the cleaning conditions of the household and outdoor appliances on the same platform. Specifically, the handheld high-pressure cleaner provided by the embodiment of the present disclosure includes a cleaning mode and a spray mode, wherein the cleaning mode mainly refers to cleaning household and outdoor appliances, such as cleaning windows, balconies, range hoods, garages, houses. Moss on the walls, bicycles, garden tools, swimming pools, patio fences, outdoor recliners, sand on swimming equipment, mountain bikes, kayaks, camping gear, etc.; spray mode mainly refers to watering flowers, showers; for example, spraying flowers Planting, watering flowers, animal baths, wild showers, etc. For different cleaning conditions, the working pressure and working water flow of the handheld high pressure cleaner have different requirements. For example, when a hand-held high-pressure cleaner is used to spray a flower plant, if the working water pressure is too high, the flower will be damaged; when the hand-held pressure washer 1 is used to spray the animal for bathing or for people in the wild. When the shower is too high, the impact of the water will make the animal or person feel uncomfortable. Cause Therefore, the inventor felt that it is necessary to measure the cleaning experience of the hand-held high-pressure cleaner, and also to consider the experience of use under different working conditions and different working conditions. Therefore, the range of working water pressure, the range of working water flow, and the ratio between working water pressure and working water flow also need to consider different cleaning conditions.

Based on the above considerations, when the hand-held high-pressure cleaner 1 is used in the spray mode, the working water pressure to be ejected outward is greater than or equal to 0.2 MPa, less than 0.6 MPa, and the working water flow rate of the outward jet is 1.5 L or more. /Min, less than or equal to 8L/Min, therefore, in the spray mode, the working water pressure can also be 0.3Mpa, 0.4Mpa, 0.5Mpa, 0.55Mpa, etc., and the working water flow rate of the outward jet can also be 1.5L/ Min, 1.6L/Min, 1.8L/Min, 2L/Min, 2.6L/Min, 3L/Min, 3.6L/Min, 3.8L/Min, 4L/Min, 4.5L/Min, 5L/Min, 5.5L /Min, 6L/Min, 6.5L/Min, 7L/Min, 8L/Min, etc. Preferably, the working water pressure to be ejected outward is 0.2 MPa, and the working water flow rate to be ejected outward is 3.5 L/min, which can be used for pouring flowers and the like.

When the hand-held high-pressure cleaner 1 is used in the cleaning mode, the working water pressure to be ejected outward is greater than or equal to 0.6 MPa, and when it is less than or equal to 10 MPa, the flow rate of the working water discharged to the outside is 1.5 L/min or less. Equal to 8L/Min; therefore, in the cleaning mode, the working water pressure can also be 0.65Mpa, 0.69Mpa, 0.7Mpa, 0.8Mpa, 0.9Mpa, 1Mpa, 1.1Mpa, 1.2Mpa, 1.3Mpa, 1.4Mpa, 1.5Mpa, 1.8 Mpa, 2Mpa, 2.2Mpa, 3Mpa, 3.5Mpa, 4Mpa, 4.5Mpa, 5Mpa, 5.5Mpa, 6Mpa, 7Mpa, 8Mpa, 8.5Mpa, 9Mpa, etc., the working water flow rate of the outward jet can also be 1.6L/Min , 1.7L/Min, 1.8L/Min, 1.9L/Min, 2L/Min, 2.5L/Min, 3L/Min, 3.5L/Min, 4L/Min, 4.5L/Min, 5L/Min, 5.5L/ Min, 6L/Min, 6.5L/Min, 7L/Min, 7.5L/Min, 7.8L/Min, and the like.

Based on the above research by the inventors, it can be concluded that for the hand-held high pressure cleaner 1, the ratio of the working water pressure to the working water flow rate is not only affected by different water pressures, but also affected by different working conditions.

Therefore, in the embodiment of the present disclosure, for the portable hand-held high-pressure cleaner 1, the ratio of the working water pressure to the working water flow rate is different under different working water pressures, and the working water is different under different working conditions. The ratio of pressure to working water flow is considered differently. Provides a ratio of different working water pressures to working water flows for different working water pressure ranges.

Specifically, for a hand-held high-pressure cleaner with an operating water pressure of 0.2 MPa or more and less than 0.6 MPa, the ratio of the working water pressure to the outward output to the working water flow is 0.025 to 0.18. A preferred ratio is 0.05 to 0.1. That is, the ratio of the working water pressure to the outward output to the outwardly output working water flow may be 0.03, 0.033, 0.035, 0.04, 0.043, 0.048, 0.05, 0.053, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.13. , 0.14, 0.15, 0.16, 0.17, etc. For example, the handheld high pressure cleaner outputs a working water pressure of 0.3 MPa, and the handheld high pressure cleaner outputs outward. The working water flow rate is 4L/Min, and the ratio of the working water pressure to the working water flow rate is 0.075. The working water pressure is mainly used for watering and spraying. In such working conditions, high pressure is not required, but sufficient working water flow is required.

The ratio of the working water pressure outputted outward to the working water flow outputted outward is 0.25-2.5 for a hand-held high-pressure cleaner whose output water pressure is 0.6 MPa or more and 10 MPa or less; that is, outward The ratio of the output working water pressure to the outward output working water flow may be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, etc. A preferred ratio is from 0.4 to 1.75. For example, the hand-operated high-pressure cleaner outputs a working water pressure of 0.8 MPa, and the hand-held high-pressure cleaner outputs a working water flow of 2 L/min, and the ratio of the working water pressure to the working water flow is 0.4. The working water pressure and working water flow can be used to clean the bicycle chain. In this condition, high pressure is not required to avoid damage to the chain lubricating oil and bearings. The working water pressure of the hand-held high-pressure cleaner is 5Mpa, and the working water flow of the hand-held high-pressure cleaner can be 4.2L/Min. The ratio of the working water pressure to the working water flow is 1.19. Water pressure and working water flow can be used to clean the car.

It should be noted that the above-mentioned working water pressure can be designed as a fixed working water pressure value according to the specific performance requirements and costs of the hand-held high-pressure cleaner 1, and can also be designed as multiple gear values. When designed as multiple gear values, it can be adjusted to the corresponding gear value by knob or button control.

In another embodiment of the present disclosure, the handheld high pressure cleaner 1 can also be powered by an alternating current source (not shown). Electrical energy is supplied from commercial power supply to functional components. There is no limit to the amount of power in the power supply. Therefore, there is no limit to the continuous working time of the handheld high-pressure cleaner. However, under certain operating conditions, the AC power supply will sacrifice the handheld high-pressure cleaning. The portability of the machine, such as outdoor cleaning conditions.

As shown in Figures 1 and 2, the hand held high pressure cleaner 1 further includes a spray head 110 that is provided with one or more spray openings 1111. The one or more spray openings may cooperate with respective working water pressures and working water flows to eject different types of water streams outwardly. In this embodiment, the hand held high pressure washer 1 further includes a gun attachment attached between the spray head 110 and the body portion 108, the gun attachment including a short gun attachment 116, a long gun attachment (not shown), and a retractable gun attachment ( One or more combinations of those not shown. In this embodiment, the main body portion 108 is connected to the short gun attachment 116, and one end 1161 of the short gun attachment 116 is in communication with the main body portion 108. The water outlet portion is formed at the other end 1162 of the gun attachment, and the water flow can be self-pressurized under the pressure of the pump 4. The body portion 108 flows to the other end 1162 of the gun attachment and ejects the water flow outward through the showerhead 110.

As shown in Figures 1 and 2, the start switch 5 is disposed adjacent the handle 106, specifically a trigger for triggering an external water source into the pump 4 and triggering the motor 2 to rotate. In this embodiment, the high pressure cleaner 1 further includes a control board 6. The control board 6 is electrically connected to the battery pack 9, the motor 2, and the start switch 5, respectively. Control The board 6 has a built-in control program for controlling the power supply of the battery pack 9, whether the motor 2 is rotating, and the change of the rotational speed of the motor 2. In this embodiment, the control board 6 is disposed at an upper position where the handle 106 is connected to the battery pack 9. The position where the control board 6 is located away from the head 110 of the high pressure cleaner 1 effectively prevents the splash control panel 6 at the head 110.

The hand-held high-pressure cleaner 1 also has a speed control element 7 for adjusting the rotational speed of the motor 2. The speed governing element 7 is electrically connected to the control unit 6, and the control unit 6 controls the change in the rotational speed of the motor 2 in accordance with the speed control command of the speed governing element 7. In this embodiment, the control unit 6 adjusts the duty cycle of the motor 2 to regulate the rotational speed of the motor 2, that is, the motor speed is regulated by a PWM adjustment circuit. The change in the rotational speed of the motor 2 causes a change in the cycle of the pump 4, thereby changing the discharge pressure of the high pressure cleaner 1. In other embodiments, the governor element can also regulate the pressure of the pump output stream by controlling the area of the pump outlet section.

The speed governing element 7 is arranged such that when one hand holds the handle 106, a finger of the hand can touch the speed governing element 7. With continued reference to FIG. 1, the speed governing member 7 is disposed on the body portion 108, specifically at the top of the body portion 108, where the body portion 108 and the handle 106 meet. In other embodiments, the speed governing element 7 can also be disposed on the handle 106. The position of the speed regulating element 7 is arranged to facilitate one-hand operation when the user uses the high pressure cleaner 1. In the process of starting the hand-held high-pressure cleaner 1 by the user, if it is necessary to adjust the pressure of the hand-held high-pressure cleaner 1, the user only needs to straighten the thumb in the direction of the main body portion 108, contact the speed governing member 7 and press it. The other four fingers extend from the other side of the handle 106 and contact the activation switch 5, and the palm portion just grips the handle 106. Preferably, the speed governing element 7 is a push button type switch. Pressing the speed governing element 7 triggers the control unit 6 to send an adjustment signal to the motor 2.

As shown in FIGS. 17-20, this embodiment provides an anti-rotation nozzle 110 that includes a nozzle housing 112 and a nozzle 111 that is coupled to the nozzle housing. The nozzle 111 is operatively rotatable relative to the spray head housing 112 about a rotating shaft (not shown) to effect different types of water flow from the nozzle 111. In the embodiment of the present disclosure, the extending direction of the rotating shaft is defined as an axial direction. Specifically, the nozzle 111 includes a plurality of circumferentially arranged different water outlets 1111. The nozzle housing 112 has a water flow channel 1121 therein. The plurality of different water outlets 1111 are selectively connected to the water flow channel 1121. The nozzle 111 rotates relative to the nozzle housing 112. This switches to a different water outlet 1111 to eject different types of water flow. The different types here can be understood as water flows of different flower shapes, and can also be understood as water flows of different pressures and the like. The water flow can flow from the inside of the casing 10 to the head casing 112 under the pressure of the pump 4, and is finally ejected outward from the nozzle 111. In the existing high pressure cleaner 1, if the operator wants to switch between different types of water flow, one hand is required to restrict the nozzle housing 112 from rotating relative to the housing 10, and the other hand to rotate the nozzle 111 to achieve different types of water flow. Switch. In this process, in order to prevent the high pressure cleaner 1 from falling, it is generally necessary to bring the body of the high pressure cleaner 1 against the operator's body to provide support. Therefore, in the process of use, not only the operation is troublesome, but also the user experience is not good.

In order to improve the operational comfort, the present embodiment provides a high pressure cleaner 1 that can switch the type of water flow with one hand. In the operation process, if the water flow type is to be switched, it is not necessary to change the position of the hand holding the handle 106, and only the other hand is required to rotate the nozzle 111 to realize the switching of the water flow type. Specifically, as shown in FIGS. 17-19, the head housing 112 includes a base portion 1122 and a mating portion 1123 at one end of the base portion 1122. The mating portion 1123 can be mated with the

water outlet portions

109, 109', 109" of the housing 10. When the mating portion 1123 is mated with the

water outlet portions

109, 109', 109", the mating portion 1123 is non-rotatable with respect to the water outlet portion 109, and the water flows from the

water outlet portion

109, 109', 109" into the nozzle housing 112, and from the nozzle 111. Ejected outwardly, wherein one of the

water outlet portions

109, 109', 109" and the mating portion 1123 is configured as an anti-push-in connector, and the other of the

water outlet portions

109, 109', 109" and the mating portion 1123 is configured to be anti-rotation plug The anti-rotation interface of the non-rotational connection of the joint. In the present embodiment, the mating portion 1123 is designed in the form of an outwardly protruding anti-rotation joint, and the

water outlets

109, 109', 109" are designed to be recessed inward and anti-rotation The form of the anti-transfer interface of the connector plug-in. The arrangement is such that the nozzle housing 112 and the

water outlet portions

109, 109', 109" are non-rotatingly connected. When it is required to rotate the nozzles 11 to switch between different outlet water types, it is only necessary to rotate the nozzle 111 with one hand without fixing the nozzle housing 112, and operate. Simple and convenient.

As shown in FIG. 18 and FIG. 19, the anti-rotation joint is a convex non-cylindrical structure, and the anti-transfer interface is a non-cylindrical groove. When the mating portion 1123 is inserted into the

water outlet

109, 109', 109", Since the distance between the contact surface of the non-cylindrical body and the center of rotation is different, the mating portion 1123 and the

water outlet portion

109, 109', 109" cannot rotate relative to each other. Specifically, the anti-transfer connector is a flat square structure, and the anti-transfer interface is a flat groove corresponding to the flat structure. Since the flat structure is 180 degrees symmetrical, bidirectional mounting is possible. In other words, the current mounting direction can be rotated by 180 degrees to also connect the anti-rotation connector to the anti-rotation interface. In other embodiments, the anti-tweet connector can also be made 90 degrees symmetric so that the anti-rotation connector and the anti-rotation interface can be matched from multiple directions; or the anti-rotation connector can also be formed into a petal shape. The plug-in interface is shaped like a petal groove. Of course, in other embodiments, the anti-tapping connector can also be designed in other shapes, such as a polygonal cylinder, and the anti-transfer interface has a groove that cooperates with the polygonal cylinder described above.

As one embodiment of the embodiment of the present disclosure, as shown in FIG. 7, the water discharge portion 109 is formed at the free end 1081 of the main body portion 108. The water flow can flow from the free end 1081 to the spray head casing 112 under the pressure of the pump 4, and is ejected outward through the corresponding water outlet 1111 of the nozzle 111. The free end 1081 can be understood as the port of the output water flow on the body portion 108 of the high pressure cleaner 1. The mating portion 1123 of the head housing 112 and the port for outputting water flow of the body portion 108 are non-rotationally mated.

As another embodiment of the embodiments of the present disclosure, in order to provide water flow of different pressures and to perform cleaning work on the objects in different regions, the housing 10 further includes a nozzle 110 and a body portion 108. A gun attachment between the one, including one or more combinations of a long gun attachment, a short gun attachment, and a retractable gun attachment. As shown in FIG. 21, the gun attachment is an extension gun 113. One end 1131 of the extension gun 113 is in communication with the main body portion 108, and the water outlet portion 109' is formed at the other end 1132 of the extension gun 113. The water flow can flow from the main body portion 108 to the other end 1132 of the extension gun 113 under the pressure of the pump 4. The water flow is ejected outward through the showerhead 110.

As still another embodiment of the embodiment of the present disclosure, as described in the above two embodiments, the high pressure cleaner 1 of the embodiment of the present disclosure may not be provided with a gun attachment, and the nozzle 110 may be directly connected to the main body portion 108. Of course, the high pressure cleaner 1 can also be provided with a gun attachment, and the nozzle 110 can be connected to the main body 108 via a gun attachment. In order to ensure the versatility of the main body portion 108 and/or the gun attachment of the high pressure cleaner 1. As shown in Figures 18 and 20, the high pressure cleaner 1 further includes a short gun attachment 116 coupled between the housing 10 and the spray head 110. In this embodiment, the short gun attachment can be understood as a universal rod. The universal rod 116 includes a universal head 1161 that can be coupled directly to the body portion 108 and/or the barrel attachment. The water outlet portion 109" is disposed on the universal rod 116 and disposed opposite the universal club head 1161. The advantage of such a design is that an adapter is formed between the showerhead 110 and the body portion 108 and/or the gun shaft attachment by the universal lever 116 to The water outlet portion 109" (anti-relay interface) is not disposed on the main body portion 108 and/or the gun attachment. In other words, due to the arrangement of the universal lever 116, the body portion 108 and/or the gun attachment do not require structural changes to accommodate the anti-toggle connector of the showerhead housing 112 to ensure that the body portion 108 and/or the gun attachment are also versatile. Structure of the nozzle.

As still another embodiment of the disclosed embodiment, the shower head housing 112 further includes a universal connection portion 1124 that is coupled between the base portion 1122 and the mating portion 1123. The mating portion 1123 and the universal connecting portion 1124 are detachably connected. Of course, the universal connecting portion 1124 and the base portion 1122 may also be provided in a detachable connection. In this embodiment, the showerhead 110 has a first mode of operation coupled to the

water outlets

109, 109', 109" by the mating portion 1123 and a second mode of operation for direct attachment of the body portion 108 and/or the barrel attachment through the universal joint 1124. In this way, the nozzle 110 can further provide a one-hand switching water flow type working mode while ensuring its own versatility. The operator can freely select whether the nozzle 110 needs to be connected to the

water outlet

109, 109', 109 according to his own needs. "Set the anti-rotation settings. The operator's freedom of choice is stronger.

As shown in FIG. 20, the high pressure cleaner 1 further includes a locking assembly 115 disposed at a joint of the mating portion 1123 and the

water outlet portion

109, 109', 109", and the locking assembly 115 has a restriction to restrict the movement of the head 110 in the extending direction of the rotating shaft. The locking position and the release position of the nozzle can be disengaged from the water outlet portion. By the arrangement of the locking assembly 115, the nozzle housing 112 and the

water outlet portion

109, 109', 109" can be axially locked to prevent the nozzle 110 from being opposite to the

water outlet portion

109, 109', 109 "Moving in the axial direction.

Specifically, the locking assembly 115 includes a connector 1151 that is coupled to the

water outlets

109, 109', 109". The locking ring 1152 and the plurality of balls 1153 are at least partially covered on the periphery of the connecting member 1151. The connecting member 1151 and the

water outlet portion

109, 109', 109" are detachably connected by a screw connection. The connecting member 1151 is provided with a plurality of ball holes (not shown) for accommodating the balls 1153. The respective balls 1153 are movable relative to the ball holes. A plurality of ball holes are evenly arranged in the circumferential direction of the connecting member 1151. The locking ring 1152 is axially movable relative to the housing 10. Specifically, the locking ring 1152 is axially movable relative to the housing 10. The locking position and the release position prevent the head 110 from moving in the axial direction, and the release position enables the head 110 to be detached from the

water outlets

109, 109', 109". When the locking ring 1152 is moved to the locking position, the inner wall of the locking ring 1152 applies a pressing force to the balls 1153 in a direction perpendicular to the axial direction, and urges the balls 1153 to press the universal joint of the head housing 112 in the radial direction. 1124, the nozzle housing 112 is prevented from moving in the axial direction. When the locking ring 1152 is moved to the release position, the pressing force applied to the balls 1153 by the inner wall of the locking ring 1152 disappears, and the balls 1153 are in a free state, at which time the balls 1153 move in a direction away from the universal connecting portion 1121 to realize the connecting member. 1151 is in a non-resisting state with the nozzle housing 112. At this time, the operator can separate the mating portion 1123 of the head housing 112 from the corresponding

water outlet portion

109, 109', 109" in the axial direction. Preferably, the locking assembly 115 further includes a locking ring 1152 and a connection. The elastic member 1154 between the pieces 1151 can realize the automatic return of the locking ring 1152 from the release position to the locking position. Further, the connecting member 1151 is further provided with a limiting protrusion 1155, the limiting protrusion The front end of the locking ring 1152 can be pressed back to limit the distance of the locking ring 1152. The locking assembly 115 further includes a plurality of sealing rings. The sealing ring includes a connecting member 1151 and a

water outlet

109, 109', 109. The first sealing ring 1156 at the front end of the joint and the second sealing ring 1157 disposed between the connecting member 1151 and the head housing 112 are arranged to prevent water leakage. Of course, only the locking method of the locking component is listed here. The locking component 115 can also be designed as other structures, as long as the nozzle housing 112 can be locked in the axial direction with the

water outlets

109, 109', 109". Further, the nozzle housing 112 can be detached from the

water outlet portions

109, 109', 109" in the axial direction.

As shown in FIGS. 22-23, this embodiment also discloses a water inlet assembly 14 that is configured to be connectable to the high pressure cleaner 1. That is, the water inlet pipe assembly 14 is applied to the high pressure cleaner 1 which is self-absorbent. Of course, the water inlet assembly 14 can also be applied to any other water pumping device having a pumping function. The inlet pipe assembly 14 is connected to the high pressure cleaner 1 to draw an external water source, the water source flows through the pump 4, and is discharged by the pump 4 at a certain pressure. The water inlet assembly 14 includes a water pipe 141, an interface member 153 that is in communication with the water pipe 141, a filter assembly 15 that is placed in an external water source, and a docking assembly 16 that is connected to the high pressure cleaner 1.

The water pipe 141 extends axially along a central axis Z, and includes a water outlet 1411 and a water outlet 1411. Connect the set water flow inlet 1412. The water outlet is connected to the water inlet 102 of the high pressure cleaner 1, and the water inlet 1412 is connected to an external water source. Generally, the water pipe 141 has a circular cross section. In this embodiment, the length of the water pipe is 6 meters.

The docking assembly 16 preferably uses a quick plug connector to facilitate quick insertion of the water pipe 141 and the high pressure cleaner 1 by the user.

The interface member 153 includes an access portion 1531 that is inserted into the water pipe 141 and a mating portion 1532 that is connected to the access portion 1531. The outer diameter of the access portion 1531 is set to a circular shape that coincides with the inner diameter of the water pipe 141. The access portion 1531 is inserted into the inside of the water pipe 141 and fastened to the water pipe 141. The mating portion 1532 has a columnar shape, and the cross-sectional area of the mating portion 1532 in the radial direction is larger than the cross-sectional area of the access portion 1531 in the radial direction, and the inner side of the mating portion 1532 is provided with a continuous internal thread (not shown). In this embodiment, the interface of the interface member 153 is a general interface 1420.

As shown in Figures 22-23, the filter assembly 15 includes a first filter member 154 and a second filter member 152. In the present embodiment, the first filter member 154 can be understood as a coarse filter member, and the second filter member 152 can be understood as a fine filter member. In other words, the first filter member 154 is mainly used to filter bulky debris, and the second filter member 152 is mainly used to filter fine impurities, and is further ensured by the arrangement of the first filter member 154 and the second filter member 152. The water source sucked into the high pressure cleaner 1 has a high degree of cleanliness.

The first filter member 154 includes an annular portion 1541 and a connecting portion 1542 at a lower end of the annular portion 1541. The length of the connecting portion 1542 in the axial direction is longer than that of the annular portion 1541. The outer side of the annular portion 1541 is provided with an external thread alternately formed by an annular groove and an annular rib. In the present embodiment, the interface member 153 and the first filter member 154 are integrally molded and assembled together. Specifically, the interface member 153 and the first filter member 154 can be detachably connected to the external thread of the annular portion 1541 through the internal thread of the mating portion 1532. The connecting portion 1542 includes a plurality of strip-shaped ribs 1543 spaced apart in the axial direction and an inner and outer hollow slot 1544 disposed between the adjacent two ribs 1543. The external water source can pass through the slot 1544 and through the second filter member 152 into the water tube 141. The universal interface 1420 of the interface member 153 is selectively connectable to the first filter member 154 and a water source conduit interface (not shown). When the interface member 153 is coupled to the first filter member 154, the slot 1544, the universal interface 1420, and the water inlet 1412 of the water tube 141 are all in communication with each other. In the present embodiment, the interface member 153 is coupled to the first filter member 154 and is formed with a receiving cavity (not labeled) that accommodates the second filter member 152. The second filter member 152 is in operative connection with the interface member 151. Specifically, the second filter member 152 is disposed independently of the first filter member for convenient disassembly. The second filter member 152 includes a filter net 1521, a support frame 1523 for supporting the filter net 1521, and an opening 1525 communicating with the water tube 141. The filter 1521 is provided with a plurality of filter holes (not labeled), and the pores of each filter hole are smaller than the slots of each slot 1544.

In the present embodiment, the water inlet assembly 14 includes a first mode of operation for connecting the first filter member 154 to the universal interface 1420 for absorbing external water sources, and a second operation for absorbing the external water source by interfacing the water source conduit to the universal interface 1420. The mode and interface member 153 is detached from the filter assembly 15 and the water supply line interface, and the interface member 153 is independently connected to the third mode of operation of the external water source. Wherein, the cleanliness of the external water source connected by the inlet pipe assembly 14 in the first mode of operation is less than the cleanliness of the external water source connected by the inlet pipe assembly 14 in the second mode of operation.

When the external water source connected to the water inlet pipe assembly 14 is a pond containing a small size (poor cleanliness), at this time, the water inlet pipe assembly 14 can be placed in the first working mode. In this mode, on the one hand, the external water source can be initially filtered through the slot 1544 of the first filter member 154 to filter out some relatively large debris; on the other hand, due to the mesh of the filter 1521 located in the receiving cavity The pore density is relatively small, and the external water source can be finely filtered to further prevent some tiny impurities from entering the water pipe, and the cleanliness of the water source entering the water pipe 141 is further ensured by the arrangement of the double filter members (the first and second filter members). .

When the external water source connected to the water inlet pipe assembly 14 is from the water with higher cleanliness (such as tap water), the water inlet pipe assembly 14 provided at this time may not be provided with the first filter member 154 and the second filter member housed in the receiving cavity. 152. The user can directly connect the interface member 153 to a water supply line interface (not shown), which can be a garden hose or faucet (not shown). At this point, the water inlet assembly 14 can be placed in the second mode of operation. In this mode, when the water source pipe interface is a garden hose, one end of the garden hose is fastened to the tap of the tap water, and the other end of the garden hose is connected with the interface member 153 of the water inlet pipe assembly 14, so that the water source can The water pipe 141 of the inlet pipe assembly 14 is directly passed through the garden hose and reaches the water inlet passage of the high pressure cleaner 1. Since the garden hose itself has a certain length, the water pipe 141 of the water inlet pipe assembly 14 also has a certain length, and the connection between the two can be used to improve the cleaning range and the mobility of the high pressure cleaner 1. When the water source pipeline interface is a faucet, the interface member 153 can be provided with an elastic compression sleeve (not shown), and the elastic compression sleeve can be directly inserted into the faucet end, so that the water source can directly flow through the faucet. The water pipe enters the high pressure cleaner 1 .

In addition, the external water source can also be supplied by a container device similar to a water tank or a cylinder. In this case, the interface member 153 is separated from the filter assembly 15 and the water supply line interface, and the interface member 153 can be independently connected to an external water source. At this point, the water inlet assembly 14 can be placed in the third mode of operation. In other words, the interface member 153 is independently placed in the water tank or the cylinder for water absorption. The water inlet pipe assembly 14 provided by the embodiment of the present disclosure can be applied to different water environment, and the convenience and the operability are remarkable.

The water inlet pipe assembly 14 further includes a hooking member 172. The hooking member 172 is detachably sleeved on the outer circumference of the water pipe 141, and includes a first latching portion 173 and a second protruding portion extending outward from the first latching portion 173. The card portion 174. The first latching portion 173 includes two latching arms 1731 opposed to each other, and a connecting arm 1732 provided at the top end of the latching arm for connecting the two latching arms 173. The free ends of the two holding arms 1731 are respectively provided with bent portions to prevent the hook members 172 from being detached from the container device. Further, the pair of latching arms 1731 and the connecting arm 1732 are surrounded by a locking space 175 that forms a semi-closed shape. The holding space 175 includes an enlarged area 1751 near the connecting arm 1732 and a reduced area 1752 located at the lower end of the holding arm 1731 and bent inward. The protrusions 176 are disposed on the inner side of the two holding arms 173 and in the transition region of the oversized area 1751 to the reduced area 1752. When the external water source provided is filled by a container device similar to a water tank or a cylinder, the first latching portion 173 can be conveniently clamped on the water tank or the cylinder or other container device to position the water pipe 141 to prevent the outside from being slightly light. The pulling causes the water pipe 141 to come out of the water surface, thereby causing the water inlet pipe assembly 14 to fail to absorb water normally.

The second latching portion 174 includes a pair of guiding arms 1741 that project outwardly from an outer surface of one of the latching arms 173. The extending direction of the guiding arm 1741 is perpendicular to the extending direction of the holding arm 1731. Similarly, the second latching portion 174 is also in a semi-closed state, which facilitates the detachable connection of the second latching portion 174 with the water tube 141. The hook member 172 is preferably made of a light colored plastic material. The hook member 172 can be disposed at any position of the water pipe 141 according to the needs of the user.

Considering that the filter assembly 15 needs to be submerged into the water source during normal use, the first filter member 154 and the second filter member 152 constituting the filter assembly 15 are preferably made of plastic or rubber material, and the quality is very light, so the filter assembly 15 is easy to float on the water surface, and can not sink into the water source to absorb water, thus affecting the use. Accordingly, the inlet pipe assembly 14 provided by the present embodiment is provided with a weight member 18 such that the gravity of the filter assembly 15 is greater than its buoyancy to sink the filter assembly 15 into the water source. In the present embodiment, the weight member 18 is made of a material that is not susceptible to rust, such as stainless steel. In the present embodiment, the weight member 18 is provided in a region where the interface member 153 is connected to the water pipe 141. The weight member 18 includes a hoop portion 181 looped around the outer circumference of the water pipe 141 and a fastener 182 for fastening the hoop portion 181. When the water pressure is large, the water flow easily spreads the water pipe 141, thereby causing the water pipe 141 and the access portion 1531 of the interface member 153 to be loosened, causing an unfavorable phenomenon of water source leakage. The hoop portion 181 of the weight member 18 can provide a certain fastening force to the water supply pipe 141 and the access portion 1531. Even in the case where the water pressure is large, the water pipe 141 and the access portion 1531 are not loosened. . Of course, in other embodiments, as shown in FIG. 14, the weight member 18' may also be located in the receiving cavity formed by the first filter member 154 and the interface member 153. The weight members 18, 18' may also be coupled to the respective components by means of bond bonding, suspension, or the like. The specific structure and arrangement of the weight members 18, 18' are various and will not be described herein.

As another embodiment of the embodiment of the present disclosure, the water inlet assembly 14 may not be provided with a weight member, and the filter assembly 15 can be ensured to sink into the water source. Specifically, the first filter member 154, the second One or more of the filter member 152 and the interface member 153 may be made of a metal or alloy material, and since these members have sufficient gravity, they are not floated on the water surface after being submerged in the water source.

Since the cleanliness of the water source is not high in many cases, especially when used outdoors, the user will use a nearby pond to provide water. A large amount of sludge and impurities are deposited in the waters at the bottom of the water source. When the inlet pipe assembly 14 is placed in the water source, the filter assembly 15 can easily sink to the bottom of the water source. Thus, it is particularly easy to cause the first filter member 154, the second filter member 152, and the universal interface 1420 of the interface member 153 to be blocked, thereby affecting the normal use of the high pressure cleaner 1, and the user needs to frequently clean the first filter member 154, the second. Filter member 152 and interface member 153.

In response to the above problems, the water inlet assembly 14 further includes a suspension 171 connected between the water flow inlet 1412 of the water pipe 141 and the water outlet 1411. Preferably, the suspension member 171 is made of a plastic foam material, and the volume of the suspension member 171 is large enough to ensure sufficient buoyancy, that is, the buoyancy force generated by the suspension member 171 is greater than or equal to the weight member 18, 18', the interface member. 153. The total weight of the filter assembly 15 such that when the water line assembly 14 is placed in an external water source, the filter assembly 15 can penetrate deep into the external water source but does not sink to the bottom of the water.

The suspension member 171 can be disposed in any shape and optionally installed at any position of the water pipe 141. Preferably, the suspension member 171 has a spherical shape, and the suspension member 171 is disposed on the water pipe 141 of the water inlet pipe assembly 14. The user can randomly slide the suspension member 171 on the water pipe 141 as needed to select a suitable suspension height. Further, the inventors have found that the position at which the suspension member 171 is attached to the water pipe 141 affects whether the filter assembly 15 can penetrate into the water source without sinking into the water bottom. Moreover, in general, the high pressure cleaner 1 needs to perform cleaning operations on different areas, so the position where the water inlet pipe assembly 14 is placed in the external water source needs to be changed, and the filter assembly 15 is easy during the process of pulling the water inlet pipe assembly 14. When the water surface is raised, the high pressure cleaner 1 cannot properly suck the water source during the movement of the water inlet pipe assembly 14. The inventors have further studied and found that the inlet assembly 15 has a relationship between whether the filter assembly 15 floats out of the water and the position of the suspension member 171 in the water tube 141 during the movement.

Therefore, in the present embodiment, as shown in FIG. 23, the suspension member 171 includes a top portion adjacent to the water outlet 1411, and the central axis of the water pipe 141 and the plane where the water flow inlet 1412 is located have an intersection point a, which is abutting with the suspension member 171. The straight line distance H between the tops is greater than or equal to 25 cm. At this time, it can be ensured that the filter assembly 15 does not protrude from the water surface during the dragging of the water inlet pipe assembly 14, and that the filter assembly 15 can be located at the central depth of the water source during the normal use of the water inlet assembly 14. Will not go deep into the water. Preferably, the linear distance H between the top of the suspension member 171 and the intersection point a is equal to 35 cm. The distance can ensure that the inlet assembly 15 does not penetrate the bottom of the water when the inlet pipe assembly 14 is placed in a different water source, and the filter assembly 15 does not expose during the displacement of the inlet pipe assembly 14 Out of the water. The advantage of such a design is that the operator does not need to adjust the position of the suspension member 171 each time when the water inlet assembly 14 is connected to a different external water source. Of course, the distance H may also be 26 cm, 28 cm, 30 cm, 3 cm, 34 cm, 36 cm, 38 cm, 40 cm, 50 cm, 60 cm, 70 cm, 80 cm, 90 cm, 100 cm. The suspension member 171 further includes a coloring layer (not shown) coated on the periphery. Preferably, the color of the coloring layer is different from the color of the water pipe 141 and the water source to facilitate the user to observe the specific position of the water pipe 141 in the water source.

As shown in FIG. 24, the present embodiment discloses a water pumping device which is a self-absorbent hand-held high-pressure cleaner 1 which is electrically connected to the battery pack 9. Of course, the water pumping device can also be a self-absorbent hand-held high-pressure cleaner assembly comprising a high-pressure cleaner 1 and a battery pack 9 mated with the high-pressure cleaner 1. In other embodiments, the pumping device is not limited to the high pressure cleaner 1, which may be any device having a pumping function.

As shown in FIGS. 24 to 26, the high pressure cleaner 1 has a tool terminal block 19 disposed at the bottom of the casing 10 for electrical connection with the battery pack 9. The tool terminal block 19 includes a base 191 having an abutting surface 1911 and a plurality of housing terminals 192 retained within the base. Of course, the housing 10 includes a base 191 having an abutting surface 1911. It should be understood that the base 191 is detachably connected to the housing 10; or the base 191 is integrally formed with the housing 10, that is, the base 191 is a shell. A portion of the body 10, the abutment surface 1911 on the base 191 is part of the outer surface of the housing 10. In other words, the base 191 and the housing terminal 192 are received into the inner cavity of the housing, and the abutting surface 1911 is formed on the outer surface of the housing 10.

As shown in FIGS. 27-28, the housing 10 includes a battery mount 107 that includes a pair of opposing side portions 1071 that define a battery pack receiving chamber 1070 and a battery pack. The receiving chamber 1070 has at least three walls, including a base wall 1072, and two side walls 1073 extending in a direction perpendicular to the base wall 1072. The side portion 1071 is provided with a bottom wall 1074 that is perpendicular to the side wall 1073. The base 191 includes a top wall 1914 that extends in a direction perpendicular to the abutting surface 1911.

As shown in FIGS. 24 and 26, the battery pack 9 includes a bottom 91, a cover 92 connected to the bottom 91, a battery terminal (not shown) housed in the bottom 91 and the cover 92, and can be docked. The face 1911 is mated with a mating face 921. In the present embodiment, the battery terminal block can be disposed in the accommodating space formed by assembling the bag bottom 91 and the cover 92. The battery terminal block includes a plurality of battery pack terminals (not shown) that are electrically connected to the housing terminals 192. A mating surface 921 is formed on the cover 92. The cover 92 includes a top surface 924 from which a boss 925 is projected. The boss 925 includes an upper surface 922 that is perpendicular to the mating face 921 and a side surface 926 that connects the upper surface 922 to the top surface 924.

The high pressure cleaner 1 is mated with the battery pack 9 to form a mating cavity for electrically connecting the housing terminal 192 and the battery pack terminal. The docking chamber is optionally arranged on the high pressure cleaner 1 or the battery pack 9. High pressure At least one of the washing machine 1 and the battery pack 9 is provided with a sealing structure. When the battery pack 9 is mated with the high-pressure cleaner 1, the sealing structure can seal the docking chamber to prevent water from flowing through the opening of the docking chamber. It goes to the inside of the battery pack 9 or the high-pressure cleaner 1, and affects the normal operation of the high-pressure cleaner 1.

As one of the embodiments of the present disclosure, the housing terminal 192 protrudes at least partially outwardly from the abutting surface 1911. The battery pack 9 includes an insertion space 90 for receiving a battery pack terminal and for inserting the housing terminal 192 to be electrically connected to the battery pack terminal. The insertion space 90 forms the mating cavity for electrically connecting the housing terminal 192 and the battery pack terminal. The insertion space 90 is formed by one or more of the upper surface 922, the mating surface 921, and the side surface 926 of the battery pack facing the inner cavity of the battery pack. The sealing structure can be designed to be attached to one or more faces forming the insertion space. After the battery pack is inserted into the high-pressure cleaner, the insertion space 90 is located in the area enclosed by the sealing structure, and the sealing structure can be Isolate the insertion space from the outside. Or the sealing structure is attached to one or more faces of the base, and after the battery pack is inserted into the high-pressure cleaner, the insertion space 90 is located in a region enclosed by the sealing structure, and the sealing structure can insert the The space is sealed from the outside world. For example, in one embodiment, as shown in FIGS. 24-26, the housing terminal 192 is a tab-shaped terminal that protrudes outwardly, and the mating cavity is recessed inwardly from the mating surface 921 of the battery pack 9. The insertion space 90 is inserted into the insertion space 90 of the battery pack 9 through the housing terminal 192 to be electrically connected to the battery pack terminal of the battery pack 9. Further, when the battery pack 9 is mated with the high-pressure cleaner 1, the fitting margin is usually present, that is, the surface of the battery pack 9 and the high-pressure cleaner 1 in contact with each other cannot be completely tightly fitted. Moreover, the opening of the tab-type housing terminal 192 and the insertion space cannot be an interference fit, that is, there is usually a gap between the tab-type housing terminal 192 and the opening of the insertion space 90. The sealed structure can prevent the outside water from flowing into the battery pack 9 through the matching gap between the high-pressure cleaner 1 and the battery pack 9, and the short circuit in the battery pack 9 causes a safety risk such as electric leakage and electric shock. Preferably, the sealing structure is attached to the abutting surface 1911 of the base 191, and the sealing structure is attached to at least a portion of the abutting surface 1911.

As one of the embodiments of the present disclosure, the battery pack terminal is configured to protrude at least partially outwardly from the mating surface 921, and the housing 10 includes a housing terminal and the battery pack terminal is inserted to be electrically connected to the housing terminal 192. The docking space (not shown) forms the mating cavity for electrically connecting the housing terminal 192 and the battery pack terminal. The docking space is formed by one face or a plurality of inwardly facing recesses of the base. The sealing structure is attached to one or more faces forming the docking space. After the battery pack is inserted into the high-pressure cleaner, the docking space is located in the area enclosed by the sealing structure, and the sealing structure can seal the docking space from the outside. Or the sealing structure is attached to one or more faces of the battery pack. After the battery pack is inserted into the high-pressure cleaner, the docking space is located in the area enclosed by the sealing structure, and the sealing structure can connect the docking space to the outside. Sealed and isolated. For example, in one embodiment, the battery pack terminal is at least A tab terminal (not shown) that partially protrudes outwardly from the mating surface. One of the forms of the docking chamber is that the docking chamber is a docking space formed by the inward recess of the mating surface 1911 of the housing 10, and is inserted into the docking space of the housing 10 through the battery pack terminal to be electrically connected to the housing terminal 192. connection. Further, when the battery pack 9 is mated with the high-pressure cleaner 1, the fitting margin is usually present, that is, the surface of the battery pack 9 and the high-pressure cleaner 1 in contact with each other cannot be completely tightly fitted. The tab-type battery pack terminal and the opening of the docking space may not be interference fits, that is, there is usually a gap between the tab-type battery pack terminal and the opening of the docking space. Preferably, the sealing structure is coupled to the abutting surface of the housing, and the sealing structure is attached to at least a portion of the abutting surface 1911.

Specifically, as shown in FIG. 27, the sealing structure includes a first gasket 1931 connected to the base wall 1072, a second gasket 1932 connected to the top wall 1914, and a third gasket 1933. The first gasket and the first gasket The second gasket 1932 and the third gasket 1933 are connected end to end. The third gasket 1933 is at least partially located on the side wall 1073. When the high pressure cleaner 1 is inserted into the battery pack 9, the docking chamber is located in the first gasket 1931, the second gasket 1932, and the third gasket 1933. Within the area set. It should be noted that the first gasket 1931, the second gasket 1932 and the third gasket 1933 may be an integral strip structure or a block structure. In other words, the three gaskets may be integrally formed. The sealing strip may also be in the form of a block formed integrally. The first, second, and third are only understood as three parts. Of course, it can also be segmented. The second gasket 1932 can be designed to be partially connected to the bottom wall 1074 of the side portion 1071 and partially connected to the side wall 1073 of the side portion 1071. The second gasket 1932 can also be designed to be all attached to the side wall 1073 of the side portion 1071.

As one of the embodiments of the present disclosure, as shown in FIG. 28, the sealing structure includes a fourth gasket 1934 connected to the bottom wall 1074, a fifth gasket 1935 connected to the sidewall 1073, and a base gasket 1072 connected thereto. The sixth gasket 1936, the fourth gasket 1934, the fifth gasket 1935, and the sixth gasket 1936 are connected end to end. When the high-pressure cleaner 1 is mated with the battery pack 9, the docking chamber is located in a region surrounded by the fourth gasket 1934, the fifth gasket 1935, and the sixth gasket 1936. Similarly, the fourth gasket 1934, the fifth gasket 1935, and the sixth gasket 1936 may be integrated. In other words, the three gaskets may be integrally formed sealing strips or may be integrally formed in a block shape. The fourth, fifth, and sixth are only understood as three parts. Of course, it can also be segmented.

As one embodiment of the embodiment of the present disclosure, the sealing structure is connected to the mating surface of the battery pack, and the sealing structure is attached to at least a portion of the mating surface 921. After the battery pack 9 is inserted into the high-pressure cleaner 1 , the sealing structure can be The docking chamber is sealed.

As one of the embodiments of the present disclosure, as shown in FIG. 29, the sealing structure includes an upper sealing structure 1937 connected to the upper surface 922 of the battery pack 9, and a side dense side connecting the side surface 926 of the battery pack 9. The sealing structure 1938 and the front sealing structure 1939 connecting the top surface 924 of the battery pack 9 and located at the front end of the boss 925, the upper sealing structure 1937, the side sealing structure 1938 and the front sealing structure 1939 are connected end to end. After the high pressure cleaner is mated with the battery pack, the docking chamber is located in a region enclosed by the sealing structure.

As shown in FIG. 25, in one embodiment, the sealing structure is a block gasket 193, which may be one or a combination of an elastically deformable cushion made of a waterproof material, a single-sided tape. The gasket 193 can be connected to the high pressure cleaner 1 or to the battery pack 9. Preferably, the gasket 193 is always connected to the high pressure cleaner 1. Specifically, the gasket 193 is always connected to the mating face 1911 of the housing 10. The gasket 193 can be attached to the mating face 1911 by glue bonding or fasteners or any other suitable means. The advantage of such a design is that the composition of the battery pack 9 can be omitted, so that the battery pack 9 can be commonly used for other various power tools, and when the battery pack 9 is coupled to the high-pressure cleaner 1, the gasket 193 can prevent water from passing through the battery. The gap between the bag 9 and the base 191 of the housing 10 flows to the insertion of the battery pack 9 and the housing 10. Further, the cross-sectional area of the gasket 193 in a direction perpendicular to the insertion direction of the battery pack 9 can be designed to be larger than or equal to the cross-sectional area of the abutting surface 1911 in a direction perpendicular to the insertion direction of the battery pack 9. The gasket 193 is provided with a plurality of openings (not labeled) for penetrating the housing terminal 192 or the battery pack terminal. The cross-sectional area of the opening in the direction perpendicular to the direction in which the battery pack 9 is inserted is adapted to the cross-sectional area of the housing terminal 192 or the battery pack terminal in this direction. Specifically, the cross-sectional area of the opening in a direction perpendicular to the direction in which the battery pack is inserted may be designed to be smaller than or equal to the cross-sectional area of the housing terminal or the battery pack terminal in a direction perpendicular to the direction in which the battery pack is inserted.

As shown in FIG. 25, the cover 92 is also provided with an upper surface 922 that is perpendicular to the mating face 921 and opposite the housing 10. Preferably, the upper surface 922 of the cover 92 is provided with a heat dissipation opening 923.

As shown in FIG. 25, the high pressure cleaner 1 further includes a vent seal 194 disposed on the housing 10 for sealing the vent 923. When both the gasket 193 and the vent seal 194 are coupled to the housing 10, the vent seal 194 faces in a direction that is perpendicular to the direction in which the gasket 193 faces. The vent gasket 194 is located directly above the vent 923 and is received in the accommodating groove 195 provided at the bottom of the casing 10. Further, the outer surface of the vent seal 194 at least partially exceeds the surface 101 of the bottom of the housing 10. The advantage of this design is that the vent is slightly sealed beyond the bottom surface 101 during the insertion of the battery pack 9 into the 10 housing. The pad 194 can be squeezed to produce an elastic deformation. On the one hand, the heat-dissipating sealing pad 194 is completely sealed to the heat-dissipating opening 923; on the other hand, the battery pack 9 and the housing 10 are smoothly inserted. In addition, the size of the heat dissipation port gasket 194 is not smaller than the size of the heat dissipation port 923 to completely block the heat dissipation port 923, thereby further ensuring the waterproof effect. Of course, in other embodiments, the vent seal 194 can also be disposed directly on the battery pack 9.

The vent seal 194 can also be made of single-sided tape or soft made of soft plastic waterproof material. pad. The vent seal 194 is an integral block structure that can be joined within the accommodating groove 195 by glue bonding or fasteners or any other suitable means. The heat dissipation port 923 is selectively disposed in the battery pack 9. When the upper surface 922 of the battery pack 9 has the heat dissipation port 923 structure, the additional heat dissipation port gasket 194 can block the heat dissipation port 923 to realize the battery pack 9 Sealed waterproof effect. Since the high-pressure cleaner in the present embodiment operates with a small current, even if the heat dissipation port 923 of the battery pack 9 is blocked, the normal use of the high-pressure cleaner 1 is not affected. In this way, the solution provided by the embodiment can realize the connection of the battery pack with the large current provided by the heat dissipation port 923 to the casing 10, thereby realizing the generalization of the battery pack 9.

Claims

A high pressure cleaner comprising:

a housing comprising a base having an abutting surface;

a housing terminal connected to the base;

a functional component comprising a motor disposed within the housing and a pump for delivering water flow outward;

The high-pressure cleaner can be electrically connected to a battery pack, and the battery pack includes a mating surface that can be mated with the mating surface and a plurality of battery pack terminals electrically connected to the housing terminal. The high-pressure cleaner is inserted into the battery pack to form a mating cavity for electrically connecting the housing terminal and the battery pack terminal, and the docking chamber is selectively disposed in the high-pressure cleaner Or the battery pack, the high pressure cleaner is provided with a sealing structure, and the sealing structure can seal the docking chamber when the battery pack is mated with the high pressure cleaner.
The high-pressure cleaner according to claim 1, wherein said housing terminal protrudes at least partially outwardly from said mating surface, and said battery pack includes said battery pack terminal for said housing terminal An insertion space electrically connected to the battery pack terminal is inserted, the insertion space forming the mating cavity for electrically connecting the housing terminal and the battery pack terminal.
The high-pressure cleaner according to claim 1, wherein the battery pack terminal protrudes at least partially outwardly from the mating surface, and the housing includes the housing terminal and the battery pack terminal. Inserting a docking space electrically connected to the housing terminal, the docking space forming the docking cavity for electrically connecting the housing terminal and the battery pack terminal.
The high-pressure cleaner according to claim 1, wherein said sealing structure is coupled to said abutting surface, said sealing structure is attached to at least a portion of said abutting surface, said battery pack and said high pressure cleaning The sealing structure is capable of sealing the docking chamber after the machine is mated.
A high-pressure cleaner according to claim 1, wherein said sealing structure is a soft gasket comprising a plurality of openings therethrough for corresponding insertion of said housing terminals or said battery pack terminals.
The high pressure cleaner of claim 1 wherein said housing includes a battery mount, said battery mount including opposing pair of sides, said side and said base defining a battery a pack receiving chamber, the battery pack receiving chamber having at least three walls, including a base wall and two side walls extending in a direction perpendicular to the base wall, the base including a top extending in a direction perpendicular to the mating surface Wall, said a sealing structure is connected to the base wall, the top wall and the side wall, and when the high-pressure cleaner is mated with the battery pack, the docking cavity is located in a region surrounded by the sealing structure Inside.
The high pressure cleaner of claim 1 wherein said housing includes a battery mount, said battery mount including opposing pair of sides, said side and said base defining a battery a pack receiving chamber, the battery pack receiving chamber having at least three walls, including a base wall and a pair of side walls extending in a direction perpendicular to the base wall, the side portion being provided with a bottom perpendicular to the side wall a sealing structure connected to the bottom wall, the side wall and the base wall, wherein the docking chamber is located in the sealing structure after the high-pressure cleaner is mated with the battery pack Within the circled area.
The high-pressure cleaner according to claim 1, wherein the battery pack comprises a bottom and a cover connected to the bottom, and the cover is provided with a heat dissipation opening.
A high-pressure cleaner according to claim 8, wherein said high-pressure cleaner further comprises a vent seal provided on said housing for sealing said vent, said vent gasket being located at said Above the vent.
The high-pressure cleaner according to claim 9, wherein the housing comprises a receiving groove for receiving the heat-dissipating port gasket, and the heat-dissipating port gasket comprises an outer surface facing the heat-dissipating opening, The vent seal is coupled to the accommodating groove, the outer surface at least partially exceeding a base wall of the housing.
The high-pressure cleaner according to claim 8, wherein the battery pack further comprises a vent seal disposed on the cover for sealing the vent, the vent seal being located at the vent Above.
The high pressure cleaner according to claim 1, wherein said high pressure cleaner is a hand held high pressure cleaner, and said housing includes a handle for gripping and a body portion disposed at an angle to said handle.
A high pressure cleaner capable of electrically connecting to the battery pack, the pressure washer comprising:

a housing comprising a base having an abutting surface;

a housing terminal connected to the base;

a functional component comprising a motor disposed within the housing and a pump for delivering water flow outward;

The battery pack includes a mating surface that can be mated with the mating surface and a plurality of battery pack terminals electrically connected to the housing terminal, and the high-pressure cleaner is inserted into the battery pack Forming a mating cavity for electrically connecting the terminal of the housing to the terminal of the battery pack, the docking cavity being selectively disposed on the high pressure cleaner or the battery pack;

The at least one of the high-pressure cleaner and the battery pack are provided with a sealing structure, and the sealing structure can seal the docking chamber when the battery pack is mated with the high-pressure cleaner.
The high pressure cleaner assembly according to claim 13, wherein said housing terminal protrudes at least partially outwardly from said mating surface, and said battery pack includes said battery pack terminal for said housing The terminal is inserted into an insertion space electrically connected to the battery pack terminal, and the insertion space forms the mating cavity for electrically connecting the housing terminal and the battery pack terminal.
The high-pressure cleaner according to claim 14, wherein the battery pack comprises a bottom and a cover connected to the bottom, the cover comprises a top surface, and a boss is protruded from the top surface. The boss includes an upper surface perpendicular to the mating surface, a pair of side surfaces connecting the upper surface and the top surface, the insertion space being the upper surface, the mating surface, and the side surface One of the faces or a plurality of inner cavity facing the battery pack is recessed.
The high-pressure cleaner according to claim 15, wherein the sealing structure is attached to one or more faces forming the insertion space, and the battery pack is mated with the high-pressure cleaner. The insertion space is located in a region enclosed by the sealing structure, and the sealing structure can seal the insertion space from the outside.
The high-pressure cleaner according to claim 14, wherein the sealing structure is attached to one or more faces of the base, and after the battery pack is mated with the high-pressure cleaner, The insertion space is located in a region enclosed by the sealing structure, and the sealing structure can seal the insertion space from the outside.
The high-pressure cleaner according to claim 13, wherein said battery pack terminal protrudes at least partially outwardly from said mating surface, and said housing includes housing said housing terminal and said battery pack terminal Inserting a docking space electrically connected to the housing terminal, the docking space forming the docking cavity for electrically connecting the housing terminal and the battery pack terminal.
A high-pressure cleaner according to claim 18, wherein said docking space is formed by one or more inwardly facing depressions surrounding said base.
A high pressure cleaner according to claim 19, wherein said sealing structure is fitted After the battery pack is mated with the high-pressure cleaner on one or more sides of the docking space, the docking space is located in a region enclosed by the sealing structure, and the sealing structure The docking space can be sealed from the outside.
A high pressure cleaner according to claim 13 wherein said housing includes a battery mount, said battery mount including a pair of opposing side portions, said side portion and said base defining a battery a pack receiving chamber, the battery pack receiving chamber having at least three walls, comprising a base wall and two side walls extending in a direction perpendicular to the base wall, the base comprising a top wall extending in a direction perpendicular to the abutting surface, The sealing structure is connected to the base wall, the top wall and the side wall. When the high-pressure cleaner is mated with the battery pack, the docking cavity is located in the sealing structure. Within the area.
A high pressure cleaner according to claim 13 wherein said housing includes a battery mount, said battery mount including a pair of opposing side portions, said side portion and said base defining a battery a pack receiving chamber, the battery pack receiving chamber having at least three walls, including a base wall and a pair of side walls extending in a direction perpendicular to the base wall, the side portion being provided with a bottom perpendicular to the side wall a sealing structure connected to the bottom wall, the side wall and the base wall, wherein the docking chamber is located in the sealing structure after the high-pressure cleaner is mated with the battery pack Within the circled area.
The high-pressure cleaner according to claim 18, wherein the sealing structure is attached to one or more faces of the battery pack, and after the battery pack is mated with the high-pressure cleaner, The docking space is located in a region enclosed by the sealing structure, and the sealing structure can seal the docking space from the outside.
The high-pressure cleaner according to claim 13, wherein the sealing structure is coupled to a mating surface of the battery pack, and the sealing structure is attached to at least a portion of the mating surface, the battery pack and the After the high pressure cleaner is mated, the sealing structure can seal the docking chamber.
The high-pressure cleaner according to claim 13, wherein the battery pack comprises a bottom and a cover connected to the bottom, the cover comprises a top surface, and a boss is protruded from the top surface. The boss includes an upper surface perpendicular to the mating surface, a side surface connecting the upper surface and the top surface, and the sealing structure is coupled to the upper surface, the side surface, and the top surface, After the high pressure cleaner is mated with the battery pack, the docking chamber is located in a region enclosed by the sealing structure.
The high pressure cleaner according to claim 13, wherein said sealing structure is A block-shaped gasket can also be a long strip of sealing strip.
A high pressure cleaner assembly includes a high pressure cleaner and a battery pack electrically connected to the high pressure cleaning, the pressure washer comprising:

a housing comprising a base having an abutting surface;

a housing terminal connected to the base;

a functional component comprising a motor disposed within the housing and a pump for delivering water flow outward;

The battery pack includes:

The mating surface can be mated with the mating surface;

a battery pack terminal electrically connected to the housing terminal;

The high-pressure cleaner is inserted into the battery pack to form a mating cavity for electrically connecting the housing terminal and the battery pack terminal, and the docking chamber is selectively disposed in the high-pressure cleaner or the On the battery pack;

The at least one of the high-pressure cleaner and the battery pack is configured with a sealing structure, and the sealing structure can seal the docking chamber when the battery pack is mated with the high-pressure cleaner.
The high pressure cleaner assembly according to claim 27, wherein said housing terminal protrudes at least partially outwardly from said mating face, and said battery pack includes said battery pack terminal for said housing The terminal is inserted into an insertion space electrically connected to the battery pack terminal, and the insertion space forms the mating cavity for electrically connecting the housing terminal and the battery pack terminal.
The high pressure cleaner assembly according to claim 27, wherein said battery pack terminal protrudes at least partially outwardly from said mating surface, and said housing includes said housing terminal for said battery pack The terminal is inserted into a docking space electrically connected to the housing terminal, and the docking space forms the docking cavity for electrically connecting the housing terminal and the battery pack terminal.
A high-pressure cleaner according to claim 27, wherein said sealing structure is coupled to said abutting surface, said sealing structure is attached to at least a portion of said abutting surface, said battery pack and said high pressure cleaning The sealing structure is capable of sealing the docking chamber after the machine is mated.