CN220403915U

CN220403915U - Surface cleaning device

Info

Publication number: CN220403915U
Application number: CN202321836031.1U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Suzhou EUP Electric Co Ltd
Current assignee: Suzhou EUP Electric Co Ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-30
Anticipated expiration: 2033-07-13

Abstract

The application discloses a surface cleaning device, include: the cleaning host comprises a shell, a liquid supply tank and a dirty liquid recovery tank; the shell provides an interface, and the interface is provided with a first butt joint part which is in fluid communication with the dirty liquid recovery tank and a second butt joint part which is in fluid communication with the liquid supply tank; the external extension tube assembly comprises a cleaning head provided with a suction nozzle and a liquid outlet, a joint provided with a third butt joint part and a fourth butt joint part and a hose; a bypass passage having one end portion in fluid communication with the fluid passage of the liquid supply tank and the liquid outlet, and the other end portion in fluid communication with the suction passage of the suction nozzle to the dirty liquid recovery tank, and a valve disposed in the bypass passage, the valve having an open position in which the bypass passage is in a passage state and a closed position in which the bypass passage is in a shut-off state; the valve is configured to allow a user to operate the bypass passage in an open position. The cleaning liquid channel is communicated with the suction channel by operating the valve, so that foreign matters which can not normally discharge the cleaning liquid are sucked away.

Description

Surface cleaning device

Technical Field

The present application relates to the field of cleaning apparatus, and in particular to a surface cleaning device for cleaning a surface such as a floor.

Background

A surface cleaning device such as a floor scrubber, carpet extractor, etc., capable of wet cleaning a surface to be cleaned with a cleaning liquid; wherein the cleaning liquid is stored in the cleaning liquid supply container and is continuously applied to the floor surface through the liquid output path during the cleaning process; the applied cleaning liquid, along with the cleaned dirt (which may include dirt, dust, dirt, mud, hair and other debris), is transferred by the suction motor into the dirt liquid receptacle during cleaning.

The application of cleaning liquid to the floor is usually driven by a pump arranged in the liquid output path, sometimes due to insufficient power of the pump, or the mixing of air in the liquid output path or clogging by foreign matter, resulting in the cleaning liquid supply container not being normally or continuously supplied to the surface to be cleaned, which will prevent the device from continuing to operate, affecting the use of the user.

Disclosure of Invention

In order to solve the problem of unstable sewage suction in the prior art, an object of the present application is to provide a surface cleaning apparatus which effectively ensures that cleaning liquid can be smoothly supplied to a surface to be cleaned.

In order to achieve the above object, the present application adopts the following first technical scheme: a surface cleaning apparatus comprising a cleaning host and an external extension tube assembly removably attached to the host;

the cleaning host comprises a shell with an upright handle assembly and a base, a cleaning liquid supply assembly and a dirty liquid recovery assembly; the cleaning liquid supply assembly comprises a liquid supply box, a first liquid outlet positioned on the base and a first liquid channel positioned between the liquid supply box and the first liquid outlet; the dirty liquid recovery assembly comprises a first suction nozzle, a dirty liquid recovery box, a first suction channel and a suction motor, wherein the first suction nozzle is positioned on the base, the first suction channel is positioned between the dirty liquid recovery box and the first suction nozzle, and the suction motor is in fluid communication with the dirty liquid recovery box; the housing provides an interface, a first butt joint part which is in fluid communication with the dirty liquid recovery tank and a second butt joint part which is in fluid communication with the liquid supply tank are arranged at the interface, a third liquid channel is arranged between the second butt joint part and the liquid supply tank, a mechanical pump assembly is arranged in the third liquid channel, the mechanical pump assembly comprises a motor and a pump body, and the motor is in transmission connection with a pump shaft of the pump body;

the external extension tube assembly comprises a cleaning head provided with a second suction nozzle and a second liquid outlet, a joint provided with a third butt joint part and a fourth butt joint part, a hose positioned between the joint and the cleaning head, a second suction channel extending from the third butt joint part to the second suction nozzle, and a second liquid channel extending from the fourth butt joint part to the second liquid outlet; the fitting is configured to effect fluid communication of the first docking portion and the third docking portion and the second docking portion with the fourth docking portion upon engagement with the interface;

a bypass channel and a first valve are arranged in the bypass channel, one end part of the bypass channel is in fluid communication with the second liquid channel or the third liquid channel, the other end part of the bypass channel is in fluid communication with the first suction channel or the second suction channel, and the first valve is provided with an open position for enabling the bypass channel to be in a channel state and a closed position for enabling the bypass channel to be in a cut-off state; the first valve is configured to allow a user to operate the bypass passage in the open position.

In a specific embodiment, the interface is located at the base.

In a specific embodiment, the interface is configured for top-down insertion of the connector.

In a specific embodiment, the base includes a cover configured to close and open the interface.

In a specific embodiment, the cleaning host includes a brush assembly, the mechanical pump assembly and the brush assembly are disposed at the base, and the brush assembly is in driving arrangement with the motor.

In a specific embodiment, the liquid supply tank and the dirty liquid recovery tank are both located at the upright handle assembly.

In a specific embodiment, a second valve is disposed in the first fluid passage, the second valve being drivingly connected to a trigger and controlled to open and close by the trigger, the trigger being disposed at the upright handle assembly.

In a specific embodiment, the first valve is a mechanical valve and includes a movable valve element and an operating member for actuating the valve element by a user.

In a specific embodiment, said first valve is arranged at said joint.

In a specific embodiment, a third valve is provided at the second docking portion, the third valve having a first state blocking fluid in the fluid supply tank from exiting the second docking portion and a second state enabling fluid in the fluid supply tank to exit the second docking portion, the third valve being configured to be actuated to transition from the first state to the second state upon insertion of the connector into the interface.

Another aspect of the present application employs the following second technical scheme: a surface cleaning apparatus comprising:

the cleaning liquid supply assembly comprises a liquid supply box, a liquid outlet and a liquid channel positioned between the liquid supply box and the liquid outlet;

the dirty liquid recovery assembly comprises a suction nozzle, a dirty liquid recovery box, a suction channel positioned between the dirty liquid recovery box and the suction nozzle, and a suction motor in fluid communication with the dirty liquid recovery box;

a bypass channel having one end in fluid communication with the liquid channel and another end in fluid communication with the suction channel;

a valve disposed in said bypass passage, said first valve having an open position in which said bypass passage is in a pass-through state and a closed position in which said bypass passage is in a shut-off state, said valve being configured for operation of said bypass passage by a user in said open position.

In a specific embodiment, the surface cleaning apparatus further comprises: and the mechanical pump assembly is arranged in the liquid channel and comprises a motor and a pump body, and the motor is in transmission connection with the pump shaft of the pump body.

In a specific embodiment, the surface cleaning apparatus further comprises: and the brush assembly is in transmission arrangement with the motor.

In a specific embodiment, the pump body has an inlet and an outlet, the fluid passage includes an upstream passage between the supply tank and the inlet and a downstream passage between the outlet and the outlet, and an end of the bypass passage is in fluid communication with the downstream passage.

In a specific embodiment, the surface cleaning apparatus further comprises: a first housing; and a second housing detachably attached to the first housing, the suction motor, the liquid supply tank, the dirty liquid recovery tank and the mechanical pump assembly being disposed on the first housing, the suction nozzle, the liquid outlet and the valve being disposed on the second housing.

In a specific embodiment, the valve is a mechanical valve and includes a movable spool and an operator for actuation of the spool by a user.

Compared with the prior art, the application has the following beneficial effects: the present application provides for a bypass passage and a valve disposed in the bypass passage and configured for user operation of the bypass passage in said open position; therefore, when the cleaning liquid passage cannot normally output the cleaning liquid due to blockage of foreign matters (such as air, large particle impurities and the like), the cleaning liquid passage is communicated with the suction passage by operating the valve, so that the powerful suction capacity of the suction passage is utilized, the foreign matters which cannot normally output the cleaning liquid are sucked away, and the corresponding liquid outlet can normally output the liquid.

Drawings

Fig. 1 is a schematic perspective view of a surface cleaning apparatus according to an embodiment of the present disclosure;

FIG. 2 is a first schematic view of the surface cleaning apparatus of FIG. 1 with the external extension tube assembly, a portion of the base, and a portion of the upright handle assembly removed;

FIG. 3 is a schematic view of the surface cleaning apparatus of FIG. 2 from another angle;

FIG. 4 is a schematic view of the surface cleaning apparatus of FIG. 2 coupled to an external extension tube assembly;

FIG. 5 is a schematic view of the surface cleaning apparatus of FIG. 3 coupled to an external extension tube assembly;

FIG. 6 is a cross-sectional view of a joint provided in an embodiment of the present application; wherein the valve is in a closed position;

FIG. 7 is a schematic view of the fitting of FIG. 6 with the valve in an open position;

wherein: 100. cleaning a host; 200. externally connected extension tube components; 11. a housing; 12. a base; 2. a cleaning liquid supply assembly; 13. an upstanding handle assembly; 21. a liquid supply tank; 22. a liquid outlet; 23. a liquid channel; 24. a valve; 14. a trigger; 15. an interface; 151. a butt joint part; 152. a butt joint part; 25. a liquid channel; 4. a mechanical pump assembly; 41. a motor; 42. a pump body; 421. an inlet; 422. an outlet; 251. an upstream channel; 252. a downstream channel; 3. a dirty liquid recovery assembly; 31. a suction nozzle; 32. a dirty liquid recovery tank; 33. a suction channel; 34. a suction motor; 331. an upper channel; 332. a lower channel; 5. a brush assembly; 6. a cleaning head; 61. a suction nozzle; 62. a liquid outlet; 7. a joint 71, a butt joint portion; 72. a butt joint part; 8. a hose; 81. a suction channel; 82. a liquid channel; 91. a bypass passage; 92. a valve; 921. a valve core; 922. an operating member; 923. a spring; 73. an inner cavity; 153. and a valve.

Detailed Description

In order to describe the technical content, constructional features, objects and effects of the application in detail, the technical solutions of the embodiments of the application will be described in conjunction with the accompanying drawings in the embodiments of the application, and it is apparent that the described embodiments are only some embodiments of the application, not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the present application. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the specific shape, construction and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the technical idea of the present application.

The surface cleaning apparatus shown in fig. 1-5 is comprised of an upright cleaning main unit 100 and an external extension tube assembly 200 removably attached to the cleaning main unit 100. When the external extension tube assembly 200 is not connected, the cleaning main machine 100 can independently move on the floor (such as a carpet surface, etc.) to perform floor cleaning operation; when the external extension tube assembly 200 is connected, the cleaning host 100 and the external extension tube assembly 200 act together, so that the cleaning operation on the surfaces of sofas, furniture and the like can be realized.

The cleaning main unit 100 is an upright cleaning apparatus comprising a housing 1, the housing 1 having an upright handle assembly 13 at an upper portion and having a handle 11, and a base 12 at a lower portion, the lower portion of the upright handle assembly 13 being rotatably connected to the base 12. The user can reciprocate on the floor surface with the entire cleaning main unit 100 by manipulating the upright handle assembly 13.

The cleaning main body 100 includes a cleaning liquid supply assembly 2, and the cleaning liquid supply assembly 2 is capable of continuously supplying cleaning liquid to a surface to be cleaned. The cleaning liquid supply assembly 2 includes a liquid supply tank 21 at the upright handle assembly 13, a liquid outlet 22 at the lower portion of the base 12, and a liquid passage 23 between the liquid supply tank 21 and the liquid outlet 22. A valve 24 is arranged in the liquid channel 23, the valve 24 being in driving connection with the trigger 14 at the handle 11, whereby a user can control the opening and closing of the valve 24 by pulling the trigger 14, thereby achieving a control of whether cleaning liquid flows to the liquid outlet 22.

An interface 15 is provided at the upper portion of the base 12, and a docking portion 151 and a docking portion 152 are disposed at the interface 15. The interface 15 is also provided with a cover (not shown in the figures) configured to be able to close and open the interface 152.

The cleaning liquid supply assembly 2 further comprises a liquid channel 25 between the liquid supply tank 21 and the docking portion 151, and a mechanical pump assembly 4 is arranged on the path of the liquid channel 25. The mechanical pump assembly 4 comprises a motor 41 and a pump body 42, the motor 41 being in driving connection with the pump shaft of the pump body 42. The pump body 42 has an inlet 421 and an outlet 422. The liquid channel 25 includes an upstream channel 251 between the liquid supply tank 21 and the inlet 421 and a downstream channel 252 between the outlet 422 and the docking portion 151.

The cleaning main unit 100 includes a dirty liquid recovery assembly 3, and the dirty liquid recovery assembly 3 is capable of sucking up dirt on a surface to be cleaned and recovering a cleaning liquid applied to the surface to be cleaned. The dirty liquid recovery assembly 3 comprises a suction nozzle 31 located at the base 12, a dirty liquid recovery tank 32 located at the housing 11, a suction channel 33 located between the dirty liquid recovery tank 32 and the suction nozzle 31, and a suction motor 34 in fluid communication with the dirty liquid recovery tank 32. The docking portion 152 is located in the path of the suction channel 33, and the suction channel 33 includes an upper channel 331 located between the docking portion 152 and the dirty liquid recovery tank 32, and a lower channel 332 located between the docking portion 152 and the suction nozzle 31.

The cleaning host 100 includes a brush assembly 5. Both the mechanical pump assembly 4 and the brush assembly 5 are arranged at the base 12. The brush assembly 5 is in driving arrangement with the motor 41. In this example, the brush assembly 5 is located on the rear side of the suction nozzle 31, and the mechanical pump assembly 4 is located on the rear side of the brush assembly 5.

The external extension tube assembly 200 comprises a cleaning head 6 provided with a suction nozzle 61 and a liquid outlet 62, a joint 7 provided with a docking portion 71 and a docking portion 72, and a hose 8 located between the joint 7 and the cleaning head 6, a suction channel 81 extending from the docking portion 71 to the suction nozzle 61, and a liquid channel 82 extending from the docking portion 72 to the liquid outlet 62.

The connector 7 is configured to be insertable at the interface 15; in this embodiment, the interface 15 is configured for top-down insertion of the connector 7. After the joint 7 is engaged with the interface 15, the docking portion 151 and the docking portion 72 are in fluid communication, and the docking portion 152 is in fluid communication with the docking portion 71; at this time, the lower passage 332 is blocked, the upper passage 331 of the suction passage 33 is in fluid communication with the suction passage 81, and the suction nozzle 61 of the cleaning head 6 is in fluid communication with the dirty liquid recovery tank 32.

As shown in fig. 6-7, the external extension tube assembly 200 further includes a bypass passage 91 and a valve 92 disposed in the bypass passage 91. One end portion of the bypass passage 91 is in fluid communication with the liquid passage 82, and the other end portion is in fluid communication with the suction passage 81. The valve 92 has an open position in which the bypass passage 91 is in a passage state and a closed position in which the bypass passage 91 is in a shut-off state. The valve 92 is configured to allow a user to operate the bypass passage 91 in an open position.

The valve 92 is a mechanical valve and includes a movable valve core 921 and an operating member 922 for user actuation of the valve core 921. With the action of the valve spool 921, the valve 92 can be switched between an open position and a closed position, thereby placing the bypass passage 91 in a passage state or a shut-off state. In other embodiments, the valve 92 may alternatively be other types of valves, such as an electronic valve, etc.

In this case, the valve 92 is arranged at the joint 7, the valve core 921 is supported on the inner wall of the bypass channel 91 by a spring 923, and the inner chamber 73 forms part of the liquid channel 82. The operating member 922 is a pressing member and is exposed, and the user can switch the valve 92 to the open position by pushing the valve core 921 downward by pressing the operating member 922, and the suction passage 81 is in fluid communication with the liquid passage 82 through the bypass passage 91; after the user releases the operating member 922, the valve core 921 will be reset under the action of the spring 923, enabling the valve 92 to be switched to the closed position, without communication between the suction channel 81 and the liquid channel 82.

In other embodiments, the bypass channel and valve may also be disposed on the cleaning host, such as at the base; the suction motor has the function of conveniently communicating the liquid channel with the suction channel when needed, and can directly suck air, foreign matters and the like in the liquid channel from the liquid channel into the suction channel by utilizing the strong suction force of the suction motor, so that the liquid channel is kept unblocked all the time.

As shown in fig. 3, a valve 153 is provided at the abutting portion 151, and the valve 153 has a first state in which the liquid in the liquid supply tank 21 is blocked from flowing out of the abutting portion 151 and a second state in which the liquid in the liquid supply tank 21 is allowed to flow out of the abutting portion 151. The valve 153 is configured to be actuated to transition from the first state to the second state upon insertion of the fitting 15 into the interface 7. The valve 153 is preferably a one-way valve that is also configured to automatically switch from the second state to the first state when the connector 15 is disengaged from the port 7, such as by providing a resilient return member within the valve 153.

Typically, a valve (not shown) for controlling whether the liquid outlet 62 is discharged is also disposed at the cleaning head 6 of the external extension tube assembly 200, and is preferably a mechanical valve through which the user can pause the discharge of the liquid from the liquid outlet 62 during the cleaning operation using the external extension tube assembly 200.

When the cleaning host 100 is not connected to the external extension tube assembly 200 and works alone, a user holds the handle of the upright handle assembly 13 and pushes the base 12 to move on the ground; the power switch is started, the suction motor 34 and the motor 41 are started, the trigger 14 is pulled to open the valve 24, and the cleaning liquid in the liquid supply tank 21 directly flows to the liquid outlet 22 and is applied to the ground; at this time, the motor 41 drives the brush assembly 5 to rub and brush on the floor, and the suction nozzle 31 sucks up dirt on the floor and dirty cleaning liquid after brushing and using, and sends the dirt and cleaning liquid into the dirty liquid recovery tank 32 through the lower channel 332, the docking portion 152 and the upper channel 331.

When the cleaning main machine 100 is connected to the external extension tube assembly 200 for operation, the abutting portion 151 and the abutting portion 72 are in fluid communication, the abutting portion 152 is in fluid communication with the abutting portion 71, the valve 153 is opened, the liquid passage 25 and the liquid passage 82 which are communicated with the liquid supply tank 21 and the liquid outlet 62 are communicated, the suction path which is communicated with the suction nozzle 61 to the dirty liquid recovery tank 32 is communicated, the suction passage 81, the abutting portion 152 and the upper passage 331 are in fluid communication in sequence, and the fluid passage between the lower passage 322 and the upper passage 331 is blocked; the power switch is activated, the suction motor 34 and the motor 41 are activated, and the cleaning liquid in the liquid supply tank 21 is normally fed to the liquid outlet 62 by the action of the mechanical pump assembly 4 and applied to the surface to be cleaned; at this time, the suction nozzle 61 sucks up dirt on the surface to be cleaned and the used dirty cleaning liquid, and sends the dirt and the used dirty cleaning liquid into the dirty liquid recovery tank 32 through the suction passage 81, the docking portion 152, and the upper passage 331; during this cleaning process, if the user presses the operating member 932, the valve 92 is opened, and foreign matters or air inside the liquid passage 25, the liquid passage 82, and the pump body 42 will be directly sucked into the suction passage 81, and finally fed into the dirty liquid recovery tank 32; if the user releases the operating member 932, the cleaning liquid in the liquid supply tank 21 will be sent again to the liquid outlet 62 under the action of the mechanical pump assembly 4.

In this application, utilize powerful suction effort in the dirty liquid recovery route, realize directly sucking away the foreign matter in the clean liquid output route, the material of influence clean liquid output to the liquid outlet such as air to because the valve of two routes of intercommunication is user-controllable, the user can be when the liquid outlet goes out the water unsmooth, selects the operation to use.

The technical scheme of the application can be applied to cleaning equipment such as horizontal type cleaning equipment and handheld type cleaning equipment besides the vertical type cleaning equipment.

The foregoing has outlined and described the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined in the appended claims, specification and their equivalents.

Claims

1. A surface cleaning apparatus comprising a cleaning host and an external extension tube assembly removably attached to the host;

the external extension tube assembly comprises a cleaning head provided with a second suction nozzle and a second liquid outlet, a joint provided with a third butt joint part and a fourth butt joint part, a hose positioned between the joint and the cleaning head, a second suction channel extending from the third butt joint part to the second suction nozzle, and a second liquid channel extending from the fourth butt joint part to the second liquid outlet; the fitting is configured to effect fluid communication of the first docking portion and the third docking portion and the second docking portion with the fourth docking portion upon engagement with the interface; it is characterized in that the method comprises the steps of,

2. The surface cleaning apparatus of claim 1 wherein the interface is located at the base.

3. The surface cleaning apparatus of claim 2 wherein the interface is configured for top-down insertion of the joint.

4. The surface cleaning apparatus of claim 2, wherein the base includes a cover configured to close and open the interface.

5. The surface cleaning apparatus of claim 1 wherein the cleaning host includes a brush assembly, the mechanical pump assembly and the brush assembly being disposed at the base, the brush assembly being in driving engagement with the motor.

6. The surface cleaning apparatus of claim 1 wherein the supply tank and the dirty liquid recovery tank are both located at the upright handle assembly.

7. The surface cleaning apparatus of claim 1 wherein a second valve is disposed in the first fluid passage, the second valve being drivingly connected to a trigger and controlled to open and close by the trigger, the trigger being disposed at the upright handle assembly.

8. The surface cleaning apparatus of claim 1 wherein the first valve is a mechanical valve and includes a movable valve spool and an operating member for actuation of the valve spool by a user.

9. The surface cleaning apparatus of claim 1 wherein said first valve is disposed at said joint.

10. The surface cleaning apparatus of claim 1 wherein a third valve is provided at the second interface, the third valve having a first state blocking fluid in the fluid supply tank from exiting the second interface and a second state enabling fluid in the fluid supply tank to exit the second interface, the third valve being configured to be actuated to transition from the first state to the second state upon insertion of the connector into the interface.

11. A surface cleaning apparatus comprising:

12. The surface cleaning apparatus of claim 11, further comprising: and the mechanical pump assembly is arranged in the liquid channel and comprises a motor and a pump body, and the motor is in transmission connection with the pump shaft of the pump body.

13. The surface cleaning apparatus of claim 12, further comprising: and the brush assembly is in transmission arrangement with the motor.

14. The surface cleaning apparatus of claim 12 wherein the pump body has an inlet and an outlet, the fluid passage including an upstream passage between the supply tank and the inlet and a downstream passage between the outlet and the outlet, an end of the bypass passage being in fluid communication with the downstream passage.

15. The surface cleaning apparatus of claim 11, further comprising: a first housing; and a second housing detachably attached to the first housing, the suction motor, the liquid supply tank, the dirty liquid recovery tank and the mechanical pump assembly being disposed on the first housing, the suction nozzle, the liquid outlet and the valve being disposed on the second housing.

16. The surface cleaning apparatus of claim 11 wherein the valve is a mechanical valve and includes a movable spool and an operating member for actuation of the spool by a user.