CN210753311U

CN210753311U - Hand-held high-pressure water gun

Info

Publication number: CN210753311U
Application number: CN201921516957.6U
Authority: CN
Inventors: 毛卫波
Original assignee: Ningbo Feisi Technology Co ltd
Current assignee: Ningbo Feisi Technology Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-16
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a hand-held high-pressure water gun, which comprises a water gun main body, wherein the water gun main body comprises a shell, and a plunger pump, a gear box, a motor, a control switch, a trigger, a water inlet valve and a water outlet joint which are arranged in the shell; the gear box is arranged between the plunger pump and the motor and used for reducing the rotating speed of the motor and amplifying the torque of the motor; the gear box comprises a box body, an internal gear, a gear shaft, a bracket, a planetary gear, an eccentric shaft, a first bearing, a second bearing and a fixed seat. The transmission mechanism has the advantages of simple structure, convenience in assembly, high transmission efficiency and low energy consumption.

Description

Hand-held high-pressure water gun

Technical Field

The utility model relates to a cleaning equipment field, concretely relates to high-pressure squirt.

Background

The high-pressure water gun is a high-pressure cleaning machine, which is commonly known as a high-pressure water jet cleaning machine and is a machine for washing the surface of an object by using high-pressure water generated by a high-pressure plunger pump through a power device. It can peel off and wash away dirt to clean the surface of the object. In the existing market, a handheld high-pressure water gun is designed for convenient use, and the structure of the handheld high-pressure water gun is that a motor drives a reduction gear to drive a crank eccentric mechanism or a connecting rod mechanism to swing a piston to generate reciprocating suction and water discharge movement, so that a pump body sprays water; in order to be convenient to use and carry, the motor, the transmission mechanism, the pump body and the like are arranged in the gun type main body, and the battery pack is used for supplying power to the motor.

However, the existing handheld high-pressure water gun generally has the problems of complex structure, low assembly precision, difficult part processing, low transmission efficiency, large energy consumption, large volume and the like.

Therefore, it is an urgent need for those skilled in the art to improve the conventional hand-held high-pressure water gun to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, convenient assembling, transmission efficiency is high, the high-pressure squirt of hand-held type that the energy consumption is low.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a hand-held high-pressure water gun comprises a water gun body, wherein the water gun body comprises a shell, and a plunger pump, a gear box, a motor, a control switch, a trigger, a water inlet valve and a water outlet joint which are arranged in the shell;

the plunger pump reciprocates through an internal piston and is used for sucking a water source to increase water pressure;

the gear box is arranged between the plunger pump and the motor and used for reducing the rotating speed of the motor and amplifying the torque of the motor;

the motor is arranged at the rear part of the gear box and used for providing power for the plunger pump;

the control switch is electrically connected with the motor and used for controlling the motor to start and stop and adjusting the rotating speed of the motor;

the trigger is hinged in the shell and used for driving the control switch to act and controlling the water inlet valve to open and close;

the water inlet valve is arranged on the lower side of the shell and is used for connecting a water inlet pipe and controlling water inlet and a filtering water source;

the water outlet joint is arranged at the front part of the shell, is connected with the front end of the plunger pump, is used for connecting a spray head and controls water flow to spray;

the gear box comprises a box body, an internal gear, a gear shaft, a bracket, a planetary gear, an eccentric shaft, a first bearing, a second bearing and a fixed seat; the box body is fixedly arranged at the front part of the motor, the internal gear is fixedly arranged in the box body, the gear shaft is fixedly connected with the motor and transmits the power of the motor, the bracket is rotatably arranged in the box body, a pin shaft is arranged on the bracket, the planetary gear is rotatably arranged on the pin shaft, the inner side of the planetary gear is meshed with the gear shaft, the outer side of the planetary gear is meshed with the internal gear, the bracket and the planetary gear are matched and transmit the power of the gear shaft, the eccentric shaft is fixedly arranged on the bracket and outputs the power, the front end of the eccentric shaft extends into the plunger pump and drives the plunger pump to act, and the fixing seat is fixedly arranged at the front end of the box body; the first bearing is arranged between the box body and the bracket, and the second bearing is arranged between the fixed seat and the eccentric shaft.

Preferably, the bracket and the eccentric shaft are both formed by powder metallurgy die-casting.

As an improvement, a third bearing and a fourth bearing are further arranged on the eccentric shaft, the third bearing and the second bearing are concentrically arranged, a limit ring is arranged between the second bearing and the third bearing, and the fourth bearing is located in the plunger pump.

Further, a check ring is arranged between the rear end of the bracket and the first bearing; an O-shaped ring is arranged between the front end of the internal gear and the fixed seat. The retainer ring is used for isolating the bracket from the bearing; the O-ring is used for elastic fit between the two in order to automatically adjust the rotation center.

Preferably, the planetary gear has a trisection layout structure.

In this scheme, the shower nozzle with still be provided with spray pipe and switching pipe between the water connectors, the spray pipe connect in on the water connectors, the switching union coupling in on the spray pipe, the shower nozzle connect in on the switching pipe. The water spray pipe is arranged at the front part of the water gun main body and is used for prolonging the distance between the water spray pipeline and the water gun main body and preventing water from splashing to a body; the function of the adapter tube at the front part of the spray pipe is to quickly replace various types of spray heads, so that the practicability is improved; the nozzle is arranged at the front part of the adapter tube and is used for controlling water flow to spray according to a certain shape.

As an improvement, a battery pack is further arranged on the water gun main body and clamped at the bottom of the shell. The battery pack has the function of improving the practicability of the water gun and getting rid of an external power supply.

Specifically, the control switch comprises a contact switch, a microswitch, a circuit board and a plug; the contact switch, the microswitch and the plug are electrically connected to the circuit board, the contact switch acts and adjusts the rotating speed of the motor through the circuit board, the trigger can drive the microswitch to act and control the motor to start and stop through the circuit board, and the plug is connected with the battery pack.

As an improvement, the water gun main body further comprises a safety button, and the safety button is hinged to the shell and can abut against the trigger to limit the action of the trigger. The function of the safety button is to prevent false starting caused by false touch of the trigger.

The working principle of the scheme is as follows: the battery pack is used for supplying power, the motor drives the gear box to drive the piston in the plunger pump to do reciprocating circular motion, so that water is sucked from the water inlet valve, compressed by the plunger pump, and then sprayed from the water outlet connector through the water spraying pipe and the adapter pipe at high pressure from the spray head to form water mist.

Compared with the prior art, the beneficial effects of the utility model reside in that: this scheme adopts floating planetary gear mechanism to split type two parts around dividing. Particularly, the double bearings of the front eccentric shaft, the second bearing and the third bearing are connected, so that the deflection resistance of the eccentric shaft is effectively improved, and the stability and the fatigue strength are improved; the planetary gear adopts trisection layout, so that the force symmetry during the operation of the planetary mechanism is increased, and the energy consumption is effectively reduced; the rear bracket is connected with the eccentric shaft and the first bearing in a floating mode, the deflection coefficient of the planet carrier is reduced compared with a unilateral planet carrier system, and the problem that the planet carrier is not coaxial due to assembly and machining errors is effectively solved compared with the whole planet carrier system. The structure reduces the production and processing difficulty, and a plurality of parts can be directly and integrally formed through a machining process; and through the structural improvement, the transmission efficiency is improved, the energy consumption is reduced, and the service life of the battery is prolonged.

It is worth mentioning that the bracket and the eccentric shaft are formed by die-casting through powder metallurgy, so that compared with the prior art that machining (needing a machining center or turning, milling, grinding and drilling) is adopted, the cost is effectively saved, and the product precision is improved.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment according to the present invention;

fig. 2 is a half sectional view of a preferred embodiment according to the present invention;

fig. 3 is a schematic structural view of a water gun body according to a preferred embodiment of the present invention;

fig. 4 is a schematic view of the connection of the plunger pump, the gear box and the motor according to a preferred embodiment of the present invention;

FIG. 5 is an exploded view of a gearbox according to a preferred embodiment of the present invention;

fig. 6 is an assembled relationship diagram of an internal gear, a gear shaft, a carrier and a planetary gear according to a preferred embodiment of the present invention;

fig. 7 is a schematic structural diagram of a control switch according to a preferred embodiment of the present invention.

The reference numbers in the figures are as follows:

100. a water gun body; 200. a water spray pipe; 300. a transfer tube; 400. a spray head; 500. a battery pack;

1. a housing; 2. a plunger pump; 3. a gear case; 4. a motor; 5. an insurance button; 6. a control switch; 7. A trigger; 8. a water inlet valve; 9. a water outlet joint;

301. a box body; 302. an internal gear; 303. a gear shaft; 304. a bracket; 305. a planetary gear; 306. An eccentric shaft; 307. a first bearing; 308. an O-shaped ring; 309. a second bearing; 310. a retainer ring; 311. a pin shaft; 312. a third bearing; 313. a limiting ring; 314. a fourth bearing; 315. a fixed seat;

61. a contact switch; 62. a microswitch; 63. a circuit board; 64. and (4) a plug.

Detailed Description

The present invention will be further described with reference to the following detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

As shown in fig. 1 to 7, a preferred embodiment of the present invention includes a water gun body 100, a water spray pipe 200, an adapter pipe 300, a nozzle 400, and a battery pack 500.

The functions of each part are as follows: wherein the effect of squirt main part 100 is that each part function integration of this device, wherein the effect of spray pipe 200 is in the anterior effect of squirt main part 100 to prolong spray pipe 200 way and squirt main part 100 distance and prevent that water from splashing to the health, wherein the anterior effect of adapter pipe 300 at squirt main part 100 or spray pipe 200 is that various types of shower nozzle 400 of quick replacement increase the practicality, wherein the shower nozzle 400 is in the anterior effect of adapter pipe 300 to control rivers and spray according to certain shape, wherein the battery package 500 is in the lower part effect of squirt main part 100 to increase the practicality and break away from external power supply.

The connection relationship of each part in the embodiment is as follows: the water gun main body 100 is screwed with the water spraying pipe 200, the water spraying pipe 200 is screwed with the adapter pipe 300, the adapter pipe 300 is screwed with the nozzle 400, and the water gun main body 100 is horizontally pushed and buckled with the battery pack 500.

The water gun main body 100 in this embodiment includes a housing 1, and a plunger pump 2, a gear box 3, a motor 4, a safety button 5, a control switch 6, a trigger 7, a water inlet valve 8, and a water outlet joint 9 are further disposed in the housing 1. The method comprises the following specific steps:

wherein the shell 1 is a left-right symmetrical two-piece combination and is internally provided with various components. Wherein the plunger pump 2 is arranged in the shell 1 and has the function of sucking water to increase water pressure through the reciprocating motion of the internal piston. Wherein the gear box 3 is arranged between the plunger pump 2 and the motor 4 and is used for reducing the rotating speed of the motor 4 and amplifying the torque of the motor 4. Wherein the motor 4 is arranged at the rear part of the gear box 3 and is used for providing a power source for the plunger pump 2. Wherein the safety button 5 is positioned at one side of the shell 1 and is used for preventing false start caused by false touch of the trigger 7. The control switch 6 is positioned in the shell 1 and is used for adjusting the rotating speed of the motor 4 to control the start and stop of the motor 4. Wherein, the trigger 7 is positioned at the front part of the handle of the shell 1 and is used for controlling the on-off of the power supply and the on-off of the water inlet valve 8. Wherein the water inlet valve 8 is positioned at the lower side of the shell 1 and is used for controlling a water inlet switch and filtering a water source. Wherein, the water outlet joint 9 is positioned at the front part of the plunger pump 2 and the front opening of the shell 1 and is used for externally connecting the water spray pipe 200 and the adapter pipe 300. The connection relationship among the parts in the water gun body 100 is as follows: the left part and the right part of the shell 1 are connected through screws, the plunger pump 2 is in threaded connection with the gear box 3, the gear box 3 is in threaded connection with the motor 4, the plunger pump 2 is in threaded connection with the water outlet joint 9, and the water inlet valve 8 is in threaded connection with the water outlet joint 9.

The present embodiment is a key improvement of the gear box 3, wherein the gear box 3 includes a box 301, an internal gear 302, a gear shaft 303, a carrier 304, a planetary gear 305, an eccentric shaft 306, a first bearing 307, an O-ring 308, a second bearing 309, a retainer ring 310, a pin shaft 311, a third bearing 312, a retainer ring 313, a fourth bearing 314, and a fixing seat 315. The specific connection relationship and function are as follows:

wherein the box 301 is located at the front of the motor 4 and is used for connecting the motor 4 and fixing the inner gear 302. Wherein the internal gear 302 is located inside the casing 301 and functions to fix the carrier of the planet gears 305 against the rotation of the carrier. Wherein the gear shaft 303 is positioned at the front part of the motor 4 and is used for transmitting the power of the motor 4. Wherein the bracket 304 is located inside the case 301 and functions to fix the pin 311. Wherein the planetary gear 305 is located at the front of the carrier 304 and functions to transmit the power of the gear shaft 303. Wherein the eccentric shaft 306 is located in front of the planet wheels and functions as an output power. Wherein a second bearing 309 is located on the eccentric shaft 306, which acts to reduce rotational friction. Wherein, the O-shaped ring 308 is positioned at the front part of the inner gear 302 and has the function of automatically adjusting the rotation center by elastic fit. Wherein the first bearing 307 is located in the housing 301 and functions to reduce rotational friction. Wherein the retainer ring 310 is located at the rear of the carrier 304 and functions to isolate the carrier 304 from the first bearing 307. With the pins 311 located in the apertures of the carrier 304 and serving to support the planet gears 305. Wherein the third bearing 312 is located on the eccentric shaft 306 and functions to reduce rotational friction. Wherein the stop collar 313 is located between the second bearing 309 and the third bearing 312 and functions as a spacer bearing. Wherein the fourth bearing 314 is located on the eccentric shaft 306 and functions to reduce rotational friction. Wherein the fixing base 315 is located at the front of the case 301 and is used for fixing the planetary mechanism. The connection relationship of each part in the gear box 3 is that the box body 301 is connected with the inner gear 302 in a clamping mode, the box body 301 is connected with a first bearing 307 through a pin, the gear shaft 303 is connected with the motor 4 through a pin, the bracket 304 is connected with the first bearing 307 in a floating mode, the bracket 304 is connected with the retaining ring 310 through a shaft, the bracket 304 is connected with the pin shaft 311, the planetary gear 305 is connected with the pin shaft 311, the eccentric shaft 306 is connected with the pin shaft 311, the second bearing 309 is connected with the eccentric shaft 306 through a pin, the limiting ring 313 is connected with the shaft, the third bearing 312 is connected with the eccentric shaft 306 through a pin, the fourth bearing 314 is connected with the eccentric shaft 306 through a pin, the.

The control switch 6 includes a contact switch 61, a microswitch 62, a wiring board 63 and a plug 64 as a conventional structure. The connection relationship of each part in the control switch 6 is as follows: the contact switch 61 is connected with the terminal of the circuit board 63, the microswitch 62 is connected with the terminal of the circuit board 63, and the plug 64 is connected with the terminal of the circuit board 63. The battery pack 500 inputs power to the circuit board 63 through the plug 64, the circuit board 63 controls the battery pack 500, and when abnormal signals such as temperature, current and the like are detected, the power can be cut off actively; the microswitch 62 is connected with the circuit board 63 to control the on-off of the motor 4, and the contact switch 61 is connected with the circuit board 63 to control the rotating speed of the motor 4.

The control mode of the contact switch 61 of the embodiment is a stepless speed change mode, the speed regulation range is 5000 plus 18000 revolutions, the injection water pressure is regulated through the rotating speed, compared with the fixed gear regulation, the regulation is simplified and can not be changed, the rotating speed can be regulated at will in the scheme, and the scheme is suitable for various application scenes. It should be noted that the contact switch 61 may be a push-button switch, a rotary switch, or other alternatives.

The basic principles, main features and advantages of the present invention have been described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hand-held type high pressure squirt, includes squirt main part, its characterized in that: the water gun main body comprises a shell, and a plunger pump, a gear box, a motor, a control switch, a trigger, a water inlet valve and a water outlet joint which are arranged in the shell;

2. A hand-held high pressure water gun as claimed in claim 1, wherein: the bracket with the eccentric shaft all adopts powder metallurgy worker die-casting shaping.

3. A hand-held high pressure water gun as claimed in claim 1, wherein: the eccentric shaft is further provided with a third bearing and a fourth bearing, the third bearing and the second bearing are concentrically arranged, a limiting ring is arranged between the second bearing and the third bearing, and the fourth bearing is located in the plunger pump.

4. A hand-held high pressure water gun as claimed in claim 1, wherein: a check ring is arranged between the rear end of the bracket and the first bearing; an O-shaped ring is arranged between the front end of the internal gear and the fixed seat.

5. A hand-held high pressure water gun as claimed in any one of claims 1 to 4, characterised in that: the planetary gear adopts a trisection layout structure.

6. A hand-held high pressure water gun as claimed in claim 5, wherein: the shower nozzle with still be provided with spray pipe and switching pipe between the water connectors, the spray pipe connect in on the water connectors, the switching union coupling in on the spray pipe, the shower nozzle connect in on the switching pipe.

7. The hand-held high pressure water gun as claimed in claim 6, wherein: still be provided with the battery package on the squirt main part, the battery package joint in the casing bottom.

8. The hand-held high pressure water gun as claimed in claim 7, wherein: the control switch comprises a contact piece switch, a microswitch, a circuit board and a plug; the contact switch, the microswitch and the plug are electrically connected to the circuit board, the contact switch acts and adjusts the rotating speed of the motor through the circuit board, the trigger can drive the microswitch to act and control the motor to start and stop through the circuit board, and the plug is connected with the battery pack.

9. A hand-held high pressure water gun as claimed in claim 5, wherein: the squirt gun main part still includes the insurance button, the insurance button articulate in on the casing to can contradict the trigger, the restriction the trigger action.