Surface cleaning device
By combining a flow path switching device and a fluid pump, the problem of residual water in the infusion pipeline after the surface cleaning device is solved, achieving efficient discharge of residual water and ensuring the device's reusability.
Patent Information
- Application Number
- CN202422618831.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-29
AI Technical Summary
After use, existing surface cleaning devices often leave water residue in the infusion tubing, which can affect reuse.
By combining a flow path switching device and a fluid pump, the residual water in the infusion pipeline can be effectively discharged. In the first working state, the flow path switching device sends water from the clean water tank into the infusion pipeline, and in the second working state, the residual fluid is sent into the recovery pipeline.
This effectively avoids water or steam residue in the infusion tubing, ensuring the device's reusability.
Smart Images
Figure CN223504142U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cleaning, in particular to a surface cleaning device for cleaning an area such as a floor, an object surface or the like. BACKGROUND
[0002] A surface cleaning device is an apparatus for cleaning a surface to be cleaned with water and recovering the dirty water. The surface cleaning device mainly comprises a fluid delivery system having a supply tank and a delivery line, a recovery system having a dirty water tank and a suction motor, and a cleaning element such as a roller brush or the like in contact with the surface to be cleaned. In some surface cleaning devices, a pump and a steam generating assembly downstream of the pump are arranged in the path of the delivery line, which steam generating assembly is capable of heating water into steam to provide cleaning steam for the cleaning element or simply to provide steam externally.
[0003] The surface cleaning device described above, after use, the delivery line usually has residual water, which is easy to affect the user to use the surface cleaning device again. Therefore, how to discharge the residual water will become a problem to be solved for such surface cleaning devices. CONTENT OF THE INVENTION
[0004] Based on the above technical problems, the purpose of the present application is to provide a surface cleaning device which can effectively discharge the residual water in the delivery line.
[0005] In order to achieve the above purpose, the present application provides a surface cleaning device, comprising: a machine body, which is provided with a clean water tank, a steam generating assembly, a dirty water tank, and a suction motor in fluid communication with the dirty water tank; a delivery line configured to deliver water supplied from the clean water tank to a surface to be cleaned, the steam generating assembly being arranged on the delivery line; a recovery line configured to send dirty liquid from the surface to be cleaned into the dirty water tank; a fluid pump having an inlet end and an outlet end; and a flow switching device configured to be switchable between a first working state and a second working state, the flow switching device comprising one or more multi-way valves; in the first working state, the flow switching device fluidly connects the inlet end to the clean water tank and fluidly connects the outlet end to the delivery line; in the second working state, the flow switching device fluidly connects the inlet end to the delivery line and fluidly connects the outlet end to the recovery line.
[0006] In the technical solution, preferably, the flow path switching device comprises a first multi-way valve and a second multi-way valve, the first multi-way valve provides a first interface end, a second interface end and a third interface end, the first multi-way valve selectively allows the first interface end to be in fluid communication with the third interface end, the second interface end to be closed or the second interface end to be in fluid communication with the third interface end, the first interface end to be closed, the second multi-way valve provides a fourth interface end, a fifth interface end and a sixth interface end, the second multi-way valve selectively allows the fourth interface end to be in fluid communication with the sixth interface end, the fifth interface end to be closed or the fifth interface end to be in fluid communication with the sixth interface end, the fourth interface end to be closed.
[0007] In the technical solution, preferably, the first interface end is in fluid communication with the clean water tank, the second interface end, the fourth interface end and the infusion pipeline are in fluid communication, the third interface end is in fluid communication with the inlet end, the fifth interface end is in fluid communication with the recovery pipeline, and the sixth interface end is in fluid communication with the outlet end; in the first working state, the clean water tank, the first interface end, the third interface end, the inlet end, the outlet end, the sixth interface end, the fourth interface end and the infusion pipeline are sequentially in fluid communication; in the second working state, the infusion pipeline, the second interface end, the third interface end, the inlet end, the outlet end, the sixth interface end, the fifth interface end and the recovery pipeline are sequentially in fluid communication.
[0008] In the technical solution, preferably, the first multi-way valve and the second multi-way valve are both three-way electromagnetic valves.
[0009] In the technical solution, preferably, the flow path switching device comprises a third multi-way valve, the third multi-way valve provides a first access end, a second access end, a third access end, a fourth access end and a fifth access end, the third multi-way valve selectively allows the first access end and the fourth access end to be in fluid communication, the second access end and the fifth access end to be in communication and the third access end to be closed, or allows the first access end to be closed, the second access end and the fourth access end to be in fluid communication and the third access end and the fifth access end to be in fluid communication.
[0010] In the technical solution, preferably, the first access end is in fluid communication with the clean water tank, the second access end is in fluid communication with the infusion line, the third access end is in fluid communication with the recovery line, the fourth access end is in fluid communication with the inlet end, and the fifth access end is in fluid communication with the outlet end; in the first working state, the clean water tank, the first access end, the fourth access end, the inlet end, the outlet end, the fifth access end, the second access end and the infusion line are sequentially in fluid communication; and in the second working state, the infusion line, the second access end, the fourth access end, the inlet end, the outlet end, the fifth access end, the third access end and the recovery line are sequentially in fluid communication.
[0011] In the technical solution, preferably, the third multi-way valve is a two-position five-way electromagnetic valve.
[0012] In the technical solution, preferably, the surface cleaning device further comprises a flexible tube assembly having a first end portion and a second end portion distanced from each other, the first end portion is engaged with the body, the second end portion is capable of attaching a cleaning head, the flexible tube assembly defines a first tube and a second tube, the first tube and the second tube both extend from the first end portion to the second end portion, the first tube defines part of the infusion line, and the second tube defines part of the recovery line.
[0013] The flow of the present application can cooperate with a single fluid pump to achieve the following: in the first working state, water from the clean water tank is sent into the infusion line and outputted externally; and in the second working state, residual fluid in the infusion line is sent into the recovery line, so that no fluid remains in the infusion line after use, thereby avoiding water or steam staying in the infusion line for too long. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 A schematic view of a surface cleaning device provided by an embodiment of the present application;
[0015] Figure 2 A schematic view of a horizontal body after removing part of the housing provided by an embodiment of the present application;
[0016] Figure 3 A schematic view of flow path communication of a flow path switching device provided by an embodiment of the present application in a first working state;
[0017] Figure 4 A schematic view of flow path communication of the flow path switching device in the first working state in FIG. 4; Figure 3 A schematic view of flow path communication of the flow path switching device provided by an embodiment of the present application in a second working state;
[0018] Figure 5Another flow path switching device provided by the embodiment of the present application is in a flow path connection schematic diagram in a first working state;
[0019] Figure 6 For Figure 5 A flow path connection schematic diagram in a second working state of the flow path switching device in the DETAILED DESCRIPTION
[0020] To describe the technical content, structural features, purposes and effects of the utility model, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.
[0021] The present application relates to a surface cleaning device which can use normal temperature water or steam to clean a surface to be cleaned, which can be a horizontal type, a vertical type, a self-moving type, etc. The surface cleaning device is provided with a steam generating assembly capable of converting water into steam, a recovery system with a suction motor, etc., which can be selected by the user to open or close the steam generating assembly, and to select whether to recover the water or steam applied to the surface to be cleaned. Therefore, the surface cleaning device usually has multiple operation modes which can be freely selected by the user.
[0022] The technical solutions of the present application will be described below taking a horizontal type surface cleaning device (which can also be referred to as a "fabric cleaning device") as an example.
[0023] Referring to Figure 1 , the surface cleaning device 100 includes a horizontal type main body 1 capable of being supported on the ground, a flexible pipe assembly 2 and a cleaning head 3. The flexible pipe assembly 2 has a first end portion 21 and a second end portion 22 which are away from each other. The first end portion 21 is engaged with the main body 1, and the cleaning head 3 is attached to the second end portion 22. Among them, in order to facilitate the user to clean the flexible pipe assembly 2 and the cleaning head 3, the flexible pipe assembly 2 and the cleaning head 3 are preferably arranged in a detachable manner. The surface cleaning device 100 as a movable and portable cleaning machine can be used to clean the surface of a fabric sofa, a carpet, etc.
[0024] Referring to Figure 2 , the horizontal type main body 1 includes a machine shell 11, a clean water tank 12, a steam generating assembly (not shown in the figure), a sewage tank 14 and a suction motor 15 which is in fluid communication with the sewage tank 14. The machine shell 11 is configured to be supported on the ground; wherein the clean water tank 12, the steam generating assembly, the sewage tank 14 and the suction motor 15 are all arranged in the machine shell 11.
[0025] The surface cleaning device 100 is also provided with a supply line configured to deliver water from the fresh water tank 12 to the surface to be cleaned. The steam generating assembly is arranged on the supply line. The steam generating assembly is configured to be selectively opened or closed to allow the user to freely choose whether to use the steam function. With the fluid communication function of the supply line, the water output from the fresh water tank 12 can be directly or converted into steam through the flexible tube assembly 2 and sent to the cleaning head 3. In this case, the inside of the flexible tube assembly 2 will define a first conduit extending from the first end 21 to the second end 22, which defines part of the supply line.
[0026] The surface cleaning device 100 is also provided with a recovery line configured to deliver the dirty liquid from the surface to be cleaned to the dirty water tank 14; the recovery line is arranged in sections at the cleaning head 3, the cleaning head 3 and the housing 11. With the fluid communication function of the recovery line, the dirty liquid on the surface to be cleaned can be sucked from the cleaning head 3 under the suction force of the suction motor 15 and sent to the dirty water tank 14 through the flexible tube assembly 2. In this case, the inside of the flexible tube assembly 2 will define a second conduit extending from the first end 21 to the second end 22, which defines part of the recovery line.
[0027] The surface cleaning device 100 of the present application is also provided with a fluid pump and a flow path switching device. The fluid pump and the flow path switching device can help the fluid entering the supply line to flow from the fresh water tank 12 to the cleaning head 3, or help the residual fluid in the supply line to be sent to the recovery line. The fluid pump has an inlet end and an outlet end. The flow path switching device is configured to be switched between a first working state and a second working state, and the flow path switching device includes one or more multi-way valves; in the first working state, the flow path switching device fluidly connects the inlet end of the fluid pump to the fresh water tank and fluidly connects the outlet end of the fluid pump to the supply line, so as to deliver water from the fresh water tank 12 to the supply line; in the second working state, the flow path switching device fluidly connects the inlet end of the fluid pump to the supply line and fluidly connects the outlet end of the fluid pump to the recovery line, so as to deliver the residual fluid in the supply line to the recovery line.
[0028] Several embodiments of the fluid pump and the flow path switching device are listed below to fully illustrate the technical concept of the present application. Embodiments
[0029] Referring to Figure 3 and Figure 4 , the flow path switching device includes a first multi-way valve 6 and a second multi-way valve 7. Among them, the first multi-way valve 6 and the second multi-way valve 7 are preferably three-way electromagnetic valves.
[0030] The first multi-port valve 6 provides a first interface 61, a second interface 62, and a third interface 63. The first multi-port valve 6 can selectively allow the first interface 61 to be in fluid communication with the third interface 63 and the second interface 62 to be closed, or allow the second interface 62 to be in fluid communication with the third interface 63 and the first interface 61 to be closed.
[0031] The second multi-port valve 7 provides a fourth interface 71, a fifth interface 72, and a sixth interface 73. The second multi-port valve 7 can selectively allow the fourth interface 71 to be in fluid communication with the sixth interface 73 and the fifth interface 72 to be closed, or allow the fifth interface 72 to be in fluid communication with the sixth interface 73 and the fourth interface 71 to be closed.
[0032] The first port 61 of the first multi-way valve 6 is fluidly connected to the clean water tank 12. The second port 62, the fourth port 71, and the infusion line are fluidly connected. The third port 63 is fluidly connected to the inlet port 51 of the fluid pump 5. The fifth port 72 is fluidly connected to the recovery line. The sixth port 73 is connected to the outlet port 52 of the fluid pump 5.
[0033] like Figure 3 As shown, in the first working state of the flow path switching device, the first interface 61 and the third interface 63 of the first multi-way valve 6 are fluidly connected and the second interface 62 is closed; the fourth interface 71 and the sixth interface 73 of the second multi-way valve 7 are fluidly connected and the fifth interface 72 is closed; the clean water tank 12, the first interface 61 and the third interface 63 of the first multi-way valve 6, the inlet 51 and the outlet 52 of the fluid pump 5, the sixth interface 73 and the fourth interface 71 of the second multi-way valve 7, and the infusion pipeline 10 are sequentially fluidly connected. When the flow path switching device is in the first working state, the water in the clean water tank 12 can be continuously fed into the steam generating assembly 30 and finally into the cleaning head 3.
[0034] like Figure 4As shown, in the second working state of the flow path switching device, the second interface 62 and the third interface 63 of the first multi-way valve 6 are fluidly connected, and the first interface 61 is closed. The fifth interface 72 and the sixth interface 73 of the second multi-way valve 7 are fluidly connected, and the fourth interface 71 is closed. The infusion pipeline 10, the second interface 62 and the third interface 63 of the first multi-way valve 6, the inlet 51 and the outlet 52 of the fluid pump 5, the sixth interface 73 and the fifth interface 72 of the second multi-way valve 7, and the recovery pipeline 20 are sequentially fluidly connected. When the flow path switching device is in the second working state, the fluid remaining in the steam generating assembly 30 and the infusion pipeline 10 can be sent into the recovery pipeline 20, and finally sent into the sewage tank 14 by the suction action of the suction motor 15. Example
[0035] See Figure 5 and Figure 6 The flow path switching device consists of a two-position three-way third multi-port valve 8. The third multi-port valve 8 provides a first access terminal 81, a second access terminal 82, a third access terminal 83, a fourth access terminal 84, and a fifth access terminal 85. The third multi-port valve 8 can selectively allow the first access terminal 81 and the fourth access terminal 84 to be fluidly connected, the second access terminal 82 and the fifth access terminal 85 to be connected, and the third access terminal 83 to be closed, or allow the first access terminal 81 to be closed, the second access terminal 82 and the fourth access terminal 84 to be fluidly connected, and the third access terminal 83 and the fifth access terminal 85 to be fluidly connected.
[0036] The first inlet 81 of the third multi-way valve 8 is fluidly connected to the clean water tank 12, and the second inlet 82 of the third multi-way valve 8 is fluidly connected to the infusion line 10. The third inlet 83 of the third multi-way valve 8 is fluidly connected to the recovery line 20. The fourth inlet 84 of the third multi-way valve 8 is fluidly connected to the inlet 51 of the fluid pump 5, and the fifth inlet 85 of the third multi-way valve 8 is fluidly connected to the outlet 52 of the fluid pump 5.
[0037] like Figure 5 As shown, when the flow path switching device is in its first operating state, the first access terminal 81 and the fourth access terminal 84 of the third multi-way valve 8 are fluidly connected, the second access terminal 82 and the fifth access terminal 85 are connected, and the third access terminal 83 is closed; the clean water tank 12, the first access terminal 81 of the third multi-way valve 8, the fourth access terminal 84 of the third multi-way valve 8, the inlet terminal 51 of the fluid pump 5, the outlet terminal 52 of the fluid pump 5, the fifth access terminal 85 of the third multi-way valve 8, the second access terminal 82 of the third multi-way valve 8, and the infusion pipeline 10 are sequentially fluidly connected. When the flow path switching device is in its first operating state, the water in the clean water tank 12 can be continuously fed into the steam generating assembly 30 and finally into the cleaning head 3.
[0038] As Figure 5 In the second working state, the first access end 81 of the third multi-way valve 8 is closed, the second access end 82 and the fourth access end 84 are in fluid communication, and the third access end 83 and the fifth access end 85 are in fluid communication; the infusion pipeline 10, the second access end 82 of the third multi-way valve 8, the fourth access end 84 of the third multi-way valve 8, the inlet end 51 of the fluid pump 5, the outlet end 52 of the fluid pump 5, the fifth access end 85 of the third multi-way valve 8, the third access end 83 of the third multi-way valve 8, and the recovery pipeline 20 are sequentially in fluid communication. When the flow path switching device is in the second working state, the fluid remaining in the steam generation assembly 30 and the infusion pipeline 10 can be sent into the recovery pipeline 20 and ultimately into the sewage tank 14 by the suction of the suction motor 15.
[0039] In other embodiments, more single-way valves or multi-way valves can also be used to replace the first multi-way valve 7 and the third multi-way valve 8, which can achieve switching of the flow path switching device between the first working state and the second working state.
[0040] The combination of the flow path switching device and the fluid pump of the present application can not only send the water in the clean water tank into the steam generation assembly for delivery to the surface to be cleaned in the form of water or steam, but also can recover the water remaining in the steam generation assembly and the infusion pipeline into the sewage tank.
[0041] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and the scope of protection of the present application is defined by the appended claims, the specification and its equivalents.
Claims
1. A surface cleaning device characterized by, Comprising: a machine body, on which a clean water tank, a steam generating assembly, a dirty water tank, and a suction motor in fluid communication with the dirty water tank are disposed; a supply line configured to deliver water supplied from the clean water tank to a surface to be cleaned, the steam generating assembly being disposed on the supply line; a recovery line configured to deliver dirty liquid from the surface to be cleaned to the dirty water tank; a fluid pump having an inlet end and an outlet end; and a flow path switching device configured to be switchable between a first operating state and a second operating state, the flow path switching device comprising one or more multi-port valves; in the first operating state, the flow path switching device fluidly connects the inlet end to the clean water tank and fluidly connects the outlet end to the supply line; in the second operating state, the flow path switching device fluidly connects the inlet end to the supply line and fluidly connects the outlet end to the recovery line. The flow path switching device comprises a first multi-port valve and a second multi-port valve, the first multi-port valve providing a first interface end, a second interface end, and a third interface end, the second multi-port valve providing a fourth interface end, a fifth interface end, and a sixth interface end; the first multi-port valve selectively fluidly connects the first interface end to the third interface end, closes the second interface end, or fluidly connects the second interface end to the third interface end, closes the first interface end; the second multi-port valve selectively fluidly connects the fourth interface end to the sixth interface end, closes the fifth interface end, or fluidly connects the fifth interface end to the sixth interface end, closes the fourth interface end.
2. The surface cleaning apparatus of claim 1 wherein, The first interface end is in fluid communication with the clean water tank, the second interface end, the fourth interface end, and the supply line are in fluid communication, the third interface end is in fluid communication with the inlet end, the fifth interface end is in fluid communication with the recovery line, and the sixth interface end is in fluid communication with the outlet end; in the first operating state, the clean water tank, the first interface end, the third interface end, the inlet end, the outlet end, the sixth interface end, the fourth interface end, and the supply line are in fluid communication in sequence; in the second operating state, the supply line, the second interface end, the third interface end, the inlet end, the outlet end, the sixth interface end, the fifth interface end, and the recovery line are in fluid communication in sequence.
3. The surface cleaning apparatus of claim 2 wherein, The first multi-port valve and the second multi-port valve are both three-way solenoid valves.
4. The surface cleaning apparatus of claim 2 wherein, 5. The surface cleaning apparatus of claim 1 wherein, The flow path switching device includes a third multi-way valve that provides a first access port, a second access port, a third access port, a fourth access port, and a fifth access port. The third multi-way valve selectively fluidly connects the first access port and the fourth access port, fluidly connects the second access port and the fifth access port, and closes the third access port, or fluidly connects the first access port, fluidly connects the second access port and the fourth access port, and fluidly connects the third access port and the fifth access port.
6. The surface cleaning apparatus of claim 5, wherein, The first access port fluidly connects the clean water tank, the second access port fluidly connects the delivery line, the third access port fluidly connects the recovery line, the fourth access port fluidly connects the inlet port, and the fifth access port fluidly connects the outlet port. In the first operating state, the clean water tank, the first access port, the fourth access port, the inlet port, the outlet port, the fifth access port, the second access port, and the delivery line are sequentially fluidly connected. In the second operating state, the delivery line, the second access port, the fourth access port, the inlet port, the outlet port, the fifth access port, the third access port, and the recovery line are sequentially fluidly connected.
7. The surface cleaning apparatus of claim 6, wherein, The third multi-way valve is a two-position five-way solenoid valve.
8. The surface cleaning apparatus of claim 1, wherein, Further comprising: a flexible tube assembly having a first end portion and a second end portion that are distally apart from each other, the first end portion being engaged with the body, the second end portion being attachable to a cleaning head, the flexible tube assembly defining a first tube and a second tube, the first tube and the second tube each extending from the first end portion to the second end portion, the first tube defining a portion of the delivery line, the second tube defining a portion of the recovery line.