Surface cleaning equipment base station and surface cleaning system

Abstract

The invention discloses a surface cleaning equipment base station and a surface cleaning system.The base station comprises a stopping position used for supporting and being in butt joint with surface cleaning equipment, a water storage groove, a first water supplementing port, a second water supplementing port and a water supplementing pipeline, one end of the water supplementing pipeline communicates with the first water supplementing port, and the other end of the water supplementing pipeline communicates with the second water supplementing port; when the surface cleaning equipment is located at the stopping position, a host clear water tank of the surface cleaning equipment is communicated with a second water supplementing port of the base station; the main machine clear water tank, the water supplementing pipeline and the water storage groove can communicate with one another to form a communicating vessel structure, and a water source can supplement water to the main machine clear water tank sequentially through the first water supplementing port, the water supplementing pipeline and the second water supplementing port. According to the base station, the water storage groove is formed in the base station, the water storage groove and the host clear water tank located at the stop position can form a communicating vessel structure, under the action of gravity, water of the water source can automatically flow to the host clear water tank, and unpowered water supplementing is achieved.

Description

Technical Field

[0001] This application belongs to the technical field of cleaning equipment, and particularly relates to a base station for a surface cleaning device and a surface cleaning system. Background Art

[0002] Surface cleaning devices, such as floor scrubbers, have higher cleaning effects and larger cleaning areas, and are increasingly popular among users. Surface cleaning devices are usually configured with a base station for charging and replenishing liquids for the surface cleaning device.

[0003] For the water replenishment of surface cleaning devices, existing base stations usually configure a water pumping mechanism to drive water from a water source to the main body water tank of the surface cleaning device. The water pumping mechanism mainly includes a motor or a water pump, which not only has a high component cost, inevitably generates energy consumption and noise during operation, but also occupies the internal space of the base station and increases the overall weight of the base station.

[0004] Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Summary of the Invention

[0005] Therefore, what this application aims to solve is the technical problem in the existing technology that the base station replenishes water for the surface cleaning device through a water pumping mechanism, which has high costs, large volume, and is bulky.

[0006] To solve the above technical problem, this application provides a base station for a surface cleaning device, including:

[0007] A base, including a docking position for supporting and docking the surface cleaning device;

[0008] A water storage groove, arranged on the base;

[0009] A first water replenishment port, communicating with the water storage groove;

[0010] A second water replenishment port, arranged at the docking position and adapted to be docked and communicated with the main body water tank of the surface cleaning device;

[0011] A water replenishment pipeline, one end communicating with the first water replenishment port and the other end communicating with the second water replenishment port;

[0012] When the surface cleaning device is located at the docking position, the main body water tank is communicated with the second water replenishment port; the main body water tank, the water replenishment pipeline, and the water storage groove can be mutually communicated to form a communicating vessel structure, and the water source can replenish water to the main body water tank through the first water replenishment port, the water replenishment pipeline, and the second water replenishment port in sequence.

[0013] In one embodiment, the water storage groove has an upper limit liquid level. When the surface cleaning device is located at the docking position, the upper limit liquid level is not higher than the top wall of the main body clean water tank. When the liquid level in the water storage groove reaches the upper limit liquid level, the water source stops supplying water outward, and the liquid level of the main body clean water tank is flush with the upper limit liquid level.

[0014] In one embodiment, the horizontal height of the second water replenishing port is lower than that of the first water replenishing port; when the surface cleaning device is located at the docking position, at least a part of the main body clean water tank is located above the second water replenishing port.

[0015] In one embodiment, the base station further includes a water replenishing tank for storing liquid and a water tank support for supporting the water replenishing tank. The water replenishing tank is used to supply liquid to the water storage groove; the horizontal height of the water replenishing tank is at least partially higher than that of the water storage groove.

[0016] In one embodiment, the water replenishing tank includes a water replenishing state of being docked with the first water replenishing port. A first water stop valve is provided at the first water replenishing port. The first water stop valve has a closed state and an open state under a predetermined acting force. When the water replenishing tank is docked with the first water replenishing port, the water replenishing tank applies a predetermined acting force to the first water stop valve, and the first water stop valve switches to the open state, and the water storage groove and the water replenishing pipeline are communicated with each other; when the water replenishing tank is detached from the water tank support, the first water stop valve automatically returns to the closed state, and the water storage groove and the water replenishing pipeline are blocked.

[0017] In one embodiment, the water replenishing tank includes a water replenishing port docked with the first water replenishing port and a second water stop valve provided at the water replenishing port. In the water replenishing state, the second water stop valve and the first water stop valve apply acting forces to each other, and both the second water stop valve and the first water stop valve are in the open state; when the water replenishing tank is separated from the water tank support, the mutual acting force is released, and the first water stop valve and the second water stop valve automatically close.

[0018] In one embodiment, the water replenishing port of the water replenishing tank is docked with the first water replenishing port. The water replenishing port includes a water sealing structure. When the liquid level in the water storage groove is not lower than the water sealing structure, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops supplying liquid to the water replenishing pipeline.

[0019] In one embodiment, the water sealing structure includes a circumferential enclosure, and the lower edge of the circumferential enclosure extends into the water storage groove; when the liquid level of the water storage groove is lower than the water sealing structure, an air path for air to enter the replenishment water tank is formed between the lower edge of the circumferential enclosure and the water storage groove; when the liquid level of the water storage groove submerges the lower edge of the circumferential enclosure, the air path is blocked, and the replenishment water tank stops delivering liquid to the replenishment water pipeline.

[0020] In one embodiment, it further includes a liquid level detection sensor for detecting the water level of the water storage groove and an electric control valve for controlling the connection and disconnection between the water storage groove and the water source. The electric control valve closes in response to the liquid level detection sensor detecting that the water storage groove reaches the upper limit liquid level, and the water source stops replenishing water to the water storage groove.

[0021] In one embodiment, a third water stop valve is provided at the second water replenishment port. The third water stop valve has a closed state and an open state; when the surface cleaning device is located at the docking position, the main machine clean water tank of the surface cleaning device triggers the third water stop valve to switch to the open state; when the main machine clean water tank is removed from the base station, the third water stop valve automatically returns to the closed state.

[0022] In addition, the present application also provides a surface cleaning device base station, including:

[0023] A replenishment water tank, including a water replenishment port;

[0024] A base, including a water tank support seat docked with the replenishment water tank;

[0025] A water storage groove, provided on the water tank support seat;

[0026] A first water replenishment port, provided at the bottom of the water storage groove for docking and communicating with the replenishment water tank;

[0027] A second water replenishment port, provided on the base, suitable for docking and communicating with the main machine clean water tank of the surface cleaning device;

[0028] A replenishment water pipeline, one end of which is connected to the first water replenishment port, and the other end is connected to the second water replenishment port;

[0029] When the surface cleaning device docks at the base station, the main machine clean water tank of the surface cleaning device is connected to the second water replenishment port, and the replenishment water tank is supported on the water tank support seat; the main machine clean water tank, the replenishment water pipeline and the water storage groove are interconnected to form a communicating vessel structure;

[0030] The water replenishing port includes a water sealing structure. The water replenishing port extends at least partially into the water storage groove. When the liquid level in the water storage groove is lower than the water sealing structure, under the action of gravity, the liquid in the water replenishing tank flows from the water replenishing tank to the first water replenishing port. When the liquid level in the water storage groove reaches the water sealing structure, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops delivering liquid to the first water replenishing port.

[0031] In one embodiment, an air pressure balance passage is formed by matching between the water storage groove and the water replenishing port. When the liquid level in the water storage groove is higher than or equal to the water sealing structure, the air pressure balance passage is cut off, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops delivering liquid to the first water replenishing port.

[0032] In one embodiment, the water sealing structure includes a circumferential enclosure, and the lower edge of the circumferential enclosure extends into the water storage groove; when the liquid level in the water storage groove is lower than the circumferential enclosure, an air pressure balance passage for air flow to enter the water replenishing tank is formed between the lower edge of the circumferential enclosure and the water storage groove; when the liquid level in the water storage groove submerges the lower edge of the circumferential enclosure, the air pressure balance passage is cut off.

[0033] In one embodiment, the water replenishing tank is detachably arranged with the water tank base. A first water stop valve is arranged at the first water replenishing port, and the water replenishing tank includes a second water stop valve arranged at the water replenishing port. When the water replenishing tank is installed on the water tank base, the first water stop valve and the second water stop valve interact to switch to the open state. When the water replenishing tank is separated from the water tank base, the first water stop valve and the second water stop valve automatically return to the closed state.

[0034] In addition, the present application also provides a surface cleaning system, including:

[0035] A base station, including a base, a water storage groove, a first water replenishing port, a second water replenishing port, and a water replenishing pipeline. The water storage groove is arranged on the base. The first water replenishing inlet is communicated with the water storage groove. The water storage groove is communicated with a water source. The second water replenishing port is adapted to be docked and communicated with the main water tank of the surface cleaning device. One end of the water replenishing pipeline is communicated with the first water replenishing port, and the other end is communicated with the second water replenishing port;

[0036] A surface cleaning device, including a main water tank of the host. The surface cleaning device includes a docking state for docking with the base station;

[0037] When the surface cleaning device is in the docked state, the inner wall contour of the main body water tank is lower than the upper edge of the water storage groove, the upper limit liquid level of the water storage groove is flush with the rated capacity liquid level of the main body water tank, and the main body water tank, the water replenishing pipeline and the water storage groove form a communicating vessel structure.

[0038] In one embodiment, the surface cleaning device includes a floor brush and a control part. The floor brush is used to move on the cleaning surface to clean the surface, and the control part is movably connected to the floor brush.

[0039] The main body water tank is arranged on the floor brush. The base station further includes a water replenishing tank, the water replenishing tank is docked with the first water replenishing port, and the water replenishing tank is higher than the main body water tank.

[0040] In one embodiment, the first water replenishing port is arranged at the bottom of the water storage groove.

[0041] The technical solution provided by the present application has the following advantages:

[0042] The surface cleaning device base station provided by the present application includes a docking position for supporting and docking the surface cleaning device, a water storage groove, a first water replenishing port, a second water replenishing port, and a water replenishing pipeline. Wherein, one end of the water replenishing pipeline is communicated with the first water replenishing port, and the other end is communicated with the second water replenishing port. When the surface cleaning device is located at the docking position, the main body water tank of the surface cleaning device is communicated with the second water replenishing port of the base station; the main body water tank, the water replenishing pipeline and the water storage groove can be communicated with each other to form a communicating vessel structure, and the water source can replenish water to the main body water tank through the first water replenishing port, the water replenishing pipeline and the second water replenishing port in sequence. In this way, the water source can automatically flow into the main body water tank under the action of gravity by using the communicating vessel principle to replenish water for the surface cleaning device, realizing power-free water replenishment, saving high-cost power components, simplifying the structure, saving electric energy, reducing water replenishing noise and the weight of the base station.

[0043] The present application also provides a surface cleaning system, including a base station and a surface cleaning device; wherein, the base station includes a base, a water storage groove, a first water replenishing port, a second water replenishing port and a water replenishing pipeline. When the surface cleaning device is in the docked state, the inner wall contour of the main body water tank is lower than the upper edge of the water storage groove, the upper limit liquid level of the water storage groove is flush with the rated capacity liquid level of the main body water tank, the main body water tank, the water replenishing pipeline and the water storage groove form a communicating vessel structure, and under the action of gravity, the water of the water source can flow into the main body water tank through the water replenishing pipeline, saving high-cost power components, simplifying the structure, saving electric energy, reducing water replenishing noise and the weight of the base station, and realizing power-free water replenishment. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0045] Figure 1 Schematic diagram of the three-dimensional structure of the surface cleaning equipment base station provided by the embodiment of the present application;

[0046] Figure 2 Schematic diagram of the three-dimensional structure of the surface cleaning equipment base station provided by a specific embodiment of the present application;

[0047] Figure 3 For Figure 2 Cross-sectional view of the surface cleaning equipment base station shown;

[0048] Figure 4 For Figure 3 Enlarged structure diagram of the A area shown;

[0049] Figure 5 Schematic diagram of the three-dimensional structure of the base station water replenishing tank provided by an embodiment of the present application;

[0050] Figure 6 Schematic diagram of the three-dimensional structure of the floor brush for docking the surface cleaning equipment at the base station provided by an embodiment of the present application;

[0051] Figure 7 Schematic diagram of the side view structure of the main machine clean water tank in the docking state with the base station provided by an embodiment of the present application

[0052] Figure 8 Schematic diagram of the partial cross-sectional structure of the main machine clean water tank in the docking state with the base station provided by an embodiment of the present application;

[0053] Figure 9 Schematic diagram of the partial cross-sectional structure of the main machine clean water tank in the state of not being docked with the base station provided by an embodiment of the present application;

[0054] Figure 10 Schematic diagram of the three-dimensional structure of the internal part of the main machine clean water tank provided by an embodiment of the present application;

[0055] Figure 11 Cross-sectional structure diagram of the air exchange structure of the main machine clean water tank provided by another embodiment of the present application. Detailed implementation manners

[0056] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0057] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0058] In the present application, unless otherwise stated, the orientation words such as "upper", "lower", "top", "bottom" are usually in the direction shown in the accompanying drawings, or in the vertical, perpendicular or gravitational direction of the component itself; similarly, for the sake of understanding and description, "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation words do not limit the present application.

[0059] Embodiment 1

[0060] This embodiment provides a surface cleaning equipment base station (hereinafter referred to as the base station) for docking with the surface cleaning equipment to replenish water for the surface cleaning equipment. In a specific implementation scenario, the surface cleaning equipment is a floor washer. In the non-use state, the floor washer can dock at the base station, and the base station can replenish water and charge the floor washer.

[0061] Please refer to Figure 1 and Figure 3 , the base station 100 includes a base 11, a water storage groove 12, a first water replenishing port 13, a second water replenishing port 14 and a water replenishing pipeline 15. The water storage groove 12, the first water replenishing port 13 and the second water replenishing port 14 are all arranged on the base 11. One end of the water replenishing pipeline 15 is communicated with the first water replenishing port 13, and the other end of the water replenishing pipeline 15 is communicated with the second water replenishing port 14. Among them, the water storage groove 12 is arranged at one end of the water replenishing pipeline 15 communicated with the first water replenishing port 13, and the first water replenishing port 13 is communicated with the bottom of the water storage groove 12. Specifically, the first water replenishing port 13 is used to communicate with a water source to receive water source replenishment. The second water replenishing port 14 is adapted to communicate with the main body water tank 22 of the surface cleaning equipment (see Figure 6 ), and is used to replenish water for the surface cleaning equipment.

[0062] The base 11 is adapted to be placed on the ground and is used to support and dock the surface cleaning equipment. Specifically, the base 11 forms a docking position 112 for the surface cleaning equipment to dock, and the bottom of the surface cleaning equipment can be supported on the docking position 112. At this time, the surface cleaning equipment is in the docking state. In the docking state, the surface cleaning equipment can perform operations such as charging, water replenishment or self-cleaning.

[0063] In a specific implementation scenario, please refer to Figure 6 As shown, the surface cleaning device includes a floor brush 20 and a control part (not shown). The floor brush 20 is used to move on the cleaning surface to clean the surface, and the control part is movably connected to the floor brush 20. Specifically, the control part is pivotally connected to the floor brush 20, and the control part can rotate relative to the floor brush 20 to adjust the tilt angle of the control part to adapt to users of different heights and the operations of pushing and pulling the floor brush. The shape of the floor brush 20 matches the shape of the docking position 112 of the base station. The floor brush 20 can be supported on the docking position 112, and the main body water tank 22 is arranged on the floor brush 20.

[0064] The water storage groove 12 is used to store a certain amount of liquid. When the base station 100 is supported on a horizontal plane, the water storage groove 12 is higher than the second water replenishing port 14. In this embodiment, the first water replenishing port 13 is arranged on the bottom wall of the water storage groove 12, and the horizontal height of the first water replenishing port 13 is higher than that of the second water replenishing port 14. In other words, the horizontal height of the second water replenishing port 14 is lower than that of the first water replenishing port 13. When the surface cleaning device is located at the docking position 112, at least a part of the main body water tank 22 is located above the second water replenishing port 14, and the second water replenishing port 14 communicates with the bottom of the main body water tank 22. In a specific embodiment, the water replenishing pipeline 15 is arranged in the base 11, the water replenishing pipeline 15 is a flexible pipe, and the water replenishing pipeline 15 connects the first water replenishing port 13 and the second water replenishing port 14.

[0065] When the surface cleaning device docks at the base station 100 and the floor brush 20 is located at the docking position 112, the main body water tank 22 is docked with the second water replenishing port 14, and the main body water tank 22 is communicated with the water replenishing pipeline 15 through the second water replenishing port 14. In this way, the main body water tank 22 and the water storage groove 12 are respectively connected to both ends of the water replenishing pipeline 15, and the main body water tank 22, the water replenishing pipeline 15 and the water storage groove 12 form a communicating vessel structure. The main body water tank 22 and the water storage groove 12 are respectively equivalent to a container with an open upper end and a mutually connected bottom. According to the principle of the communicating vessel, if the same liquid is injected, when the liquid is not flowing, the liquid levels in each container in the communicating vessel always remain at the same horizontal plane. By injecting liquid into the water storage groove 12 and controlling the liquid level of the water storage groove 12, after the liquid flow is stable, the liquid level in the water storage groove 12 is at the same horizontal plane as the liquid level in the main body water tank 22.

[0066] Specifically, please refer to Figure 7 As shown, the water storage groove 12 has an upper limit liquid level L. When the liquid in the water storage groove 12 reaches the upper limit liquid level L, the water source stops replenishing water to the water storage groove 12. Among them, the main body water tank 22 has a rated capacity liquid level, and the rated capacity liquid level is at the same horizontal height as the upper limit liquid level L. When the liquid level in the water storage groove 12 reaches the upper limit liquid level L, the liquid level in the main body water tank 22 reaches the rated capacity liquid level and is flush with the upper limit liquid level. At this time, the water replenishment is completed.

[0067] Among them, the upper limit liquid level L is the preset limit liquid level of the water storage groove 12 and also the maximum water replenishment liquid level of the main engine clean water tank 22. That is to say, in the communicating vessel state, the liquid level of the water storage groove 12 is equal to the liquid level of the main engine clean water tank 22, and the maximum liquid levels of the water storage groove 12 and the main engine clean water tank 22 will not exceed the upper limit liquid level L. Please continue to refer to Figure 7 , when the base station is supported on the horizontal plane, the main engine clean water tank 22 is docked with the base station, the height of the water storage groove 12 is H, the height of the main engine clean water tank 22 is h, and the upper limit liquid level of the water storage groove is L. Among them, L is less than H, and h is less than H.

[0068] In specific implementation, when the surface cleaning device is located at the docking position 112, the upper end of the main engine clean water tank 22 is communicated with the outside atmosphere, and the lower end of the main engine clean water tank 22 is communicated with the water replenishing pipeline 15; when the liquid level of the water storage groove 12 is lower than the upper limit liquid level L, the upper end or the side wall of the water storage groove 12 is communicated with the outside atmosphere, the main engine clean water tank 22 and the water storage groove 12 are communicated with each other through the water replenishing pipeline 15, and the main engine clean water tank 22, the water replenishing pipeline 15 and the water storage groove 12 form a communicating vessel structure.

[0069] Please refer to 3 and Figure 4 As shown, the upper end of the water storage groove 12 is not closed, and the water storage groove 12 can be communicated with the outside atmosphere through the upper end. The base station 100 is provided with a water source to replenish water for the surface cleaning device, and the water source can specifically be the water replenishing tank 18. In the embodiment where the water source is the water replenishing tank 18, in the docking state of the water replenishing tank 18 and the water storage groove 12, the water replenishing port 180 of the water replenishing tank 18 is in clearance fit with the side wall of the water storage operation groove 12, and the water storage groove 22 is communicated with the outside atmosphere through the fitting clearance.

[0070] In other embodiments, ventilation holes are opened at the upper ends of the side walls of the water storage groove 12, and the ventilation holes are all communicated with the inside and the outside of the water storage groove 12, so as to realize other connections between the water storage groove 12 and the outside. Grooves or gratings are arranged on the side walls of the water storage groove 12, and the grooves or gratings are all communicated with the inside and the outside of the water storage groove 12 to realize the connection between the water storage groove 12 and the outside atmosphere. Alternatively, a ventilated filter screen can also be arranged at the upper end of the side wall of the water storage groove 12. The filter screen can isolate external sundries from entering the water storage groove 12 and can also realize the connection between the water storage groove 12 and the outside atmosphere. There are many deformations of the ventilation structure of the water storage groove 12, which will not be elaborated one by one here.

[0071] Please refer to Figure 6 and Figure 7As shown, a ventilation port 220 (220a) is provided on the top wall of the main machine fresh water tank 22. The ventilation port 220 is used to connect the inside of the main machine fresh water tank 22 with the external atmospheric environment. When the surface cleaning device is in the docking position 112, the ventilation port 220 is in an open state, and the main machine fresh water tank 22 is connected to the external atmosphere through the ventilation port 220. The upper limit liquid level L of the water storage groove 12 is not higher than the top wall of the main machine fresh water tank 22, so as to ensure that the water replenishment amount does not exceed the top wall of the main machine fresh water tank 22, and water will not overflow from the ventilation port 22. When the water storage groove 12 reaches the upper limit liquid level L, the water source stops replenishing water outward, and the main machine fresh water tank 22 reaches the rated capacity liquid level, which is flush with the upper limit liquid level L. In other words, once the water volume in the water storage groove 12 touches the upper limit liquid level L, the water source stops supplying water outward, so that the liquid level of the water storage groove 12 is controlled at the upper limit liquid level L and below, and the liquid level of the main machine fresh water tank 22 will not exceed the rated capacity liquid level (upper limit liquid level L).

[0072] In other embodiments, the main machine fresh water tank 22 can also be ventilated through other structures. For example, a water seal valve is provided on the top wall of the main machine fresh water tank 22. When the liquid level is higher than the water seal valve, the water seal valve closes, and the main machine fresh water tank 22 is isolated from the external atmosphere. When the liquid level is lower than the water seal valve, the water seal valve connects the inside of the main machine fresh water tank 22 with the outside, and the external atmosphere can enter the inside of the main machine fresh water tank 22 or flow out from the inside of the main machine fresh water tank, so as to realize that when the liquid level of the main machine fresh water tank 22 reaches the rated capacity liquid level, the water seal valve is immersed under the liquid surface, and the main machine fresh water tank 22 cannot discharge the internal gas. Therefore, the water of the water source cannot continue to be replenished into the main machine fresh water tank 22. In some other embodiments, the main machine cleaning tank 22 can also be ventilated through a waterproof breathable membrane. The waterproof breathable membrane allows gas to flow through, but can block water from passing through, so the air pressure balance of the main machine fresh water tank 22 can be realized.

[0073] The surface cleaning device base station provided in this embodiment forms a communicating vessel structure through the water storage groove provided in the base station, the water storage groove, the water supply pipeline and the main machine fresh water tank of the surface cleaning device in the docking state. Under the action of gravity, the water of the water source can automatically flow to the main machine fresh water tank to realize non-powered water replenishment. The base station does not need to be provided with a water pumping mechanism, which saves component costs and reduces the weight and volume of the base station.

[0074] For the convenience of docking between the surface cleaning device and the base station, in a specific embodiment, please refer to Figure 2 and Figure 3As shown, the second water replenishment port 14 is located at the docking position 112, and the second water replenishment port 14 includes a guide platform 141 extending upward from the docking position. The cross-section of the guide platform 141 is a cone-shaped structure that gradually increases from top to bottom. The middle part of the guide platform 141 has a through channel for docking with the water outlet plug of the main unit clean water tank 22. Correspondingly, the bottom of the main unit clean water tank 22 forms a slot that matches the shape of the guide platform 141, and the water outlet plug of the main unit clean water tank 22 is located in the slot. During the docking process between the main unit clean water tank 22 and the second water replenishment port 14, the upper end of the guide platform 141 extends into the slot, and the outer wall of the guide platform 141 slides with the inner wall of the slot. Since the cross-section of the guide platform 141 gradually increases from top to bottom, it can play a guiding and positioning role for the main unit clean water tank, so that the main unit clean water tank 22 and the second water replenishment port are reliably aligned. When the water outlet plug of the main unit clean water tank is inserted into the channel of the guide platform 141 , the guide platform 141 and the outer wall of the slot are fitted and limited, completing the docking of the main unit clean water tank 22 and the second water replenishment port 14 .

[0075] For specific embodiments, see Figures 2 to 5 The water replenishment tank 18 includes a box body (not shown) for holding water, and a water replenishment port 180 is provided at one end of the box body, and the water in the box body flows outward through the water replenishment port 180. When the water replenishment port 180 is docked with the first water replenishment port 13, the box body is connected with the first water replenishment port 13, and if the main unit clean water tank 22 is also docked with the second water replenishment port 14, the water in the box body can flow to the water replenishment pipeline 15 through the water replenishment port 180 and the first water replenishment port 13 in sequence, and be replenished into the main unit clean water tank 22. The horizontal height of the water replenishment tank 18 is at least partially higher than the water storage groove 12. Under the action of gravity, the water in the water replenishment tank 18 can flow outward into the water storage groove 12, and can fill the water storage groove 12 to a certain extent, and the water in the water storage groove 12 will not overflow.

[0076] See also Figure 2 and Figure 3 The base 11 includes a water tank seat 110 for supporting a water replenishment tank 18, a water storage groove 12 is disposed on the top of the water tank seat 110, and the water replenishment tank 18 is detachably disposed on the water tank seat 110. When the water replenishment port 180 of the water replenishment tank 18 is docked with the first water replenishment port 13, the water replenishment port 180 is at least partially inserted into the water storage tank 12, and the water replenishment tank 18 is in a water replenishment state docked with the first water replenishment port 13. When the water replenishment tank 18 is separated from the water tank seat 110, the water replenishment tank 18 is in an independent state. The water source can be replenished for the water replenishment tank 18, and the cleaning liquid can also be replenished.

[0077] In order to facilitate the independent disassembly of the main unit clean water tank 22 and the water supply tank 18, the overflow problem caused by the disassembly of one of them can be avoided. Figure 4As shown, a first water replenishing port 13 is provided with a first water stop valve 16. The first water stop valve 16 has a closed state and an open state under a predetermined acting force. In the open state, the water storage groove 12 and the water replenishing pipeline 15 are communicated with each other. When the predetermined acting force is removed, the first water stop valve 16 automatically returns to the closed state, and the water storage groove 12 and the water replenishing pipeline 15 are blocked.

[0078] Specifically, when the water replenishing tank 18 is docked with the first water replenishing port 13, the water replenishing tank 18 applies a predetermined acting force to the first water stop valve 16, and the first water stop valve 16 switches from the closed state to the open state. At this time, the water replenishing tank 18 is communicated with the water replenishing pipeline 15. When the water replenishing tank 18 is detached from the water tank seat 110, the first water stop valve 16 automatically switches to the closed state. In this way, the first water replenishing port 13 will only open when it is docked with the water replenishing tank 18. Once the water replenishing tank 18 is removed, the first water stop valve 16 automatically closes the first water replenishing port 13, thus avoiding the problem of water replenishing backflow.

[0079] The water replenishing tank 18 includes a second water stop valve 182 provided at the water replenishing port 180. The second water stop valve 182 is used to control the opening and closing of the water replenishing port 180. The second water stop valve 182 can automatically seal the water replenishing port 180. When subjected to an external force, the second water stop valve 182 can switch to the open state, so that the water tank 18 is communicated with the outside through the water replenishing port 180. Specifically, when the water replenishing tank 18 is docked with the first water replenishing port 13, the second water stop valve 182 and the first water stop valve 16 apply acting forces to each other, and both the second water stop valve 182 and the first water stop valve 16 are in the open state. When the water replenishing tank 18 is separated from the water tank seat 110, the mutual acting force is removed, and the first water stop valve 16 and the second water stop valve 182 automatically close.

[0080] In specific implementation, please refer to Figure 4 As shown, the first water stop valve 16 includes a first valve stem 161, a first seal 162, a first spring 163 and a first valve seat 164. The first seal 162 is used to seal the first water replenishing port 13. The first seal 162 is arranged on the first valve stem 161. The first valve stem 161 penetrates through the first water replenishing port 13. The first spring 163 is sleeved on the first valve stem 161, one end abuts against the first valve stem 161, and the other end abuts against the valve seat 164. The first spring 163 is used to press the first valve stem 161 so that the first valve stem 161 drives the first seal 162 to seal and abut against the first water replenishing port 13, thereby sealing the first water replenishing port 13. When the first valve stem 161 is axially pressed by an external force, overcoming the elastic force of the first spring 163 and compressing the first spring 163, the first seal 162 opens the first water replenishing port 13.

[0081] Similarly, the second water stop valve 182 includes a second valve stem 1822, a second seal 1821, a second spring 1823, and a second valve seat (not shown). The second seal 1821 is used to seal the water replenishing port 180. The second seal 1821 is disposed on the second valve stem 1822. The second valve stem 1822 penetrates through the water replenishing port 180. The second spring 1823 is sleeved on the second valve stem 1822, with one end abutted against the second valve stem 1822 and the other end abutted against the second valve seat. The second spring 1823 is used to press the second valve stem 1822, so that the second valve stem 1822 drives the second seal 1821 to be in sealing abutment with the water replenishing port 180, thereby sealing the water replenishing port 180. When the second valve stem 1822 is axially pressed by an external force, overcoming the elastic force of the second spring 1823 and compressing the second spring 1823, the second seal 1821 opens the water replenishing port 180.

[0082] When the water replenishing tank 18 is supported on the water tank seat 110, the water replenishing port 180 is docked with the first water replenishing port 13. The first valve stem 161 and the second valve stem 1822 press against each other to apply axial acting forces to each other. Thus, both the first valve stem 161 and the second valve stem 1822 move to the open position, and both the first water stop valve 16 and the second water stop valve 182 are in the open state, and the water replenishing tank 18 is communicated with the water replenishing pipeline 15. Specifically, the upper part of the first valve stem 161 protrudes into the water storage groove 12. The first valve stem 161 acts as an ejecting member and presses against the end of the second valve stem 1822. With their mutual action, the first valve stem 161 moves downward by a predetermined distance, and the second valve stem 1822 moves upward by a predetermined distance, thereby opening the first water replenishing port 13 and the water replenishing port 180, and communicating the water replenishing tank 18 with the water storage groove 12 and the water replenishing pipeline 15.

[0083] To avoid the problem of water overflow from the second water replenishing port 14 after the surface cleaning device is separated from the base station, in a specific embodiment, please refer to Figure 8 As shown, a third water stop valve 17 is provided at the second water replenishing port 14 for controlling the opening and closing of the second water replenishing port 14. The third water stop valve 17 has a closed state and an open state. When the surface cleaning device is docked at the docking position 112, the main body clean water tank 22 is docked with the second water replenishing port 14, and the main body clean water tank 22 triggers the third water stop valve 17 to switch to the open state; when the surface cleaning device is removed from the base station, the third water stop valve 17 can automatically return to the closed state, thereby avoiding the problem of water overflowing from the second water replenishing port 14.

[0084] Specifically, the third water stop valve 17 includes a third valve stem 171, a third seal 172, a third spring 173, and a third valve seat 174. The third seal 172 is used to seal the second water replenishing port 14. The third seal 172 is arranged on the third valve stem 171. The third valve stem 171 penetrates through the second water replenishing port 14. The third spring 173 is sleeved on the third valve stem 171, with one end abutted against the third valve stem 171 and the other end abutted against the third valve seat 174. The third spring 173 is used to press the third valve stem 171, so that the third valve stem 171 drives the third seal 172 to be in sealing abutment with the second water replenishing port 14, thereby sealing the second water replenishing port 14. When the third valve stem 171 is axially pressed by an external force, overcoming the elastic force of the third spring 173 and compressing the third spring 173, the third seal 172 opens the second water replenishing port 14.

[0085] Among them, the above-mentioned first seal, second seal, and third seal can be rubber rings or flexible plastic sealing rings.

[0086] As described above, the third water stop valve 17 opens in response to the docking with the surface cleaning device and automatically closes in response to the separation from the surface cleaning device. When the surface cleaning device is docked with the base station, the main machine water tank 22 is communicated with the water replenishing pipeline through the second water replenishing port 14. When the surface cleaning device is separated from the base station, the third water stop valve 17 automatically closes the second water replenishing port 14. As long as there is water stored in the water replenishing tank 18, when the water-deficient main machine water tank 22 is docked with the second water replenishing port 14, the water in the water replenishing tank 18 can be conveyed into the main machine water tank 22 under the action of gravity until the liquid levels of the water storage groove 12 and the main machine water tank 22 both reach the upper limit level L.

[0087] There are several schemes for automatically controlling the stop of water replenishment. The following mainly describes two implementation schemes:

[0088] The first scheme: The water replenishing tank 18 is provided with a water sealing structure 181. The water sealing structure 181 at least partially extends into the water storage groove 12. When the liquid level of the water storage groove 12 reaches the upper limit level L, the water sealing structure 181 will seal and isolate the water replenishing tank 18 from the external atmospheric environment. Since the internal air pressure of the water replenishing tank 18 cannot be balanced, the water cannot continue to flow out.

[0089] The second scheme: A liquid level detection sensor is set to detect whether the liquid level of the water storage groove 12 reaches the upper limit level L. If it reaches the upper limit level L, the water source is controlled to stop discharging water through an electric control valve.

[0090] The following will give a detailed description of the first scheme.

[0091] Please refer to Figure 4 and Figure 5, the water replenishing port 180 of the water replenishing tank 18 is docked with the first water replenishing port 13. The water replenishing port 180 includes a water sealing structure 181. When the liquid level in the water storage groove 12 is not lower than the water sealing structure 181, the water replenishing tank 180 is isolated from the external atmosphere, and the water replenishing tank 18 stops delivering liquid to the water replenishing pipeline 15. Among them, "not lower than the water sealing structure" is understood as the liquid level contacting the water sealing structure or submerging the lower edge of the water sealing structure.

[0092] Specifically, the water sealing structure 181 includes a circumferential enclosure 183. The circumferential enclosure 183 is annular and is arranged around the circumference of the water replenishing port 180. When the water replenishing tank 18 is docked with the water tank seat 110, the lower edge of the circumferential enclosure 183 extends into the water storage groove 12. There is a ventilation gap between the circumferential enclosure 183 and the inner wall of the water storage groove 12. Through this ventilation gap, the external atmosphere can enter the interior of the water replenishing tank 18 through the water replenishing port 180, thereby realizing the air pressure balance inside the water replenishing tank 18 and enabling the water inside the water replenishing tank 18 to flow outwards. When the liquid level in the water storage groove 12 is lower than the circumferential enclosure 183, an air pressure balance passage (referred to as an air passage for short) for air flow to enter the water replenishing tank 18 is formed between the lower edge of the circumferential enclosure 183 and the liquid level of the water storage groove 12. One end of this air pressure balance passage communicates with the above-mentioned ventilation gap, and the other end communicates with the water replenishing port 180. Thus, the air pressure link inside the water replenishing tank 18 is connected to the outside, the water in the water replenishing tank 18 flows outwards, and the outside air can enter the interior of the water replenishing tank 18 through the air passage to realize the air pressure balance of the water replenishing tank 18. However, when the liquid level in the water storage groove 12 submerges the lower edge of the circumferential enclosure 183, the air passage connecting the water replenishing tank 18 to the outside is blocked, the water replenishing port 180 is cut off from the above-mentioned ventilation gap, and the water replenishing tank 18 cannot achieve internal pressure balance, so it stops delivering liquid to the water replenishing pipeline 15.

[0093] Further, please refer to Figure 5 , the water replenishing port 180 further includes a guiding structure 185. The guiding structure 185 extends downward from the lower edge of the circumferential enclosure 183. The number of guiding structures 185 is multiple, and adjacent guiding structures 185 are arranged at intervals, forming a gap for air flow to pass through. The guiding structure 185 protrudes from the circumferential enclosure 183. During the docking process of the water replenishing tank 18 with the first water replenishing port 13, the guiding structure can first extend into the first water replenishing port 13, playing a role in guiding alignment and ensuring the reliable alignment of the first water stop valve 16 and the second water stop valve 182.

[0094] The following specifically describes the second implementation solution.

[0095] In specific implementation, the base station 100 further includes a liquid level detection sensor for detecting the water level of the water storage groove 12 and an electric control valve for controlling the connection and disconnection of the water storage groove 12 and the water source. The electric control valve is communicatively connected to the liquid level detection sensor. When the liquid level detected by the liquid level detection sensor reaches the upper limit level L, the electric control valve operates to close the water outlet pipeline of the water source, and the water source stops replenishing water to the water storage groove 12. That is to say, the electric control valve responds to the liquid level detection sensor detecting that the water storage groove 12 reaches the upper limit level L and closes, and the water source stops replenishing water to the water storage groove.

[0096] Specifically, the water source can be a water replenishing tank or an external water source. When the water source is a water replenishing tank, the base station further includes a water outlet pipeline connected to the water replenishing tank, and the electric control valve is arranged on the water outlet pipeline. The water outlet of the water outlet pipeline is communicated with the water storage groove. The on-off of the water outlet pipeline is controlled by the electric control valve, so as to control the water replenishment from the water replenishing tank. When the water source is an external water source, the base station replenishes water for the surface cleaning device through the external water source. As an example, the base station 100 is connected to (municipal) tap water through a water pipe, and the on-off of the water pipe can be controlled to control the water volume replenished to the water storage groove 12. The water storage operation 12 is filled with tap water to provide a water replenishing source. The base station does not need to be provided with a water storage container, and has a smaller volume and lower cost.

[0097] The water path and air path structures of the interaction between the main machine water tank and the base station will be specifically described below.

[0098] Please refer to Figure 8 and Figure 9 . Figure 8 shows a schematic partial cross-sectional structure diagram of the main machine water tank of an embodiment in a docking state with the base station, Figure 9 shows a schematic partial cross-sectional structure diagram of the main machine water tank of an embodiment provided in a state where it is not docked with the base station. The main machine water tank 22 includes a fourth water stop valve 21 for opening and closing the water tank outlet. When the main machine water tank 22 is docked with the second water replenishing port 14, as shown in Figure 8 shown, the fourth water stop valve 21 is in an open state, and the main machine water tank 22 is communicated with the second water replenishing port 14. When the main machine water tank 22 is separated from the second water replenishing port 14, the fourth water stop valve 21 automatically returns to the closed state.

[0099] Specifically, the fourth water stop valve 21 includes a fourth valve stem 211, a fourth seal 212, a fourth spring 213, and a fourth valve seat 214. The fourth seal 212 is used to seal the outlet of the clean water tank. The fourth seal 212 is arranged on the fourth valve stem 211. The fourth valve stem 211 penetrates through the outlet of the clean water tank. The fourth spring 213 is sleeved on the fourth valve stem 211, with one end abutted against the fourth valve stem 211 and the other end abutted against the fourth valve seat 214. The fourth spring 213 is used to press the fourth valve stem 211, so that the fourth valve stem 211 drives the fourth seal 212 to be in sealing abutment with the outlet of the clean water tank, thereby sealing the outlet of the clean water tank. When the fourth valve stem 211 is subjected to an axial external force pressing action, overcoming the elastic force of the fourth spring 213 and compressing the fourth spring 213, the fourth seal 212 opens the outlet of the clean water tank.

[0100] The main engine clean water tank 22 is provided with a ventilation structure 23 for balancing the air pressure outside and inside the main engine clean water tank to ensure smooth water replenishment. The ventilation structure 23 includes an opening and closing member 231, a ventilation spring 233, and a sealing ring 235. Among them, the opening and closing member 231 is pivotally arranged on the inner wall of the main engine clean water tank 22. The opening and closing member 231 includes a sealing end 2311 and a triggering end 2312 which are oppositely arranged. The sealing ring 235 is arranged on the sealing end 2311, and the sealing ring 235 is used to seal the ventilation port 220. The triggering end 2312 is opposite to the upper end of the fourth valve stem 211. The side of the triggering end 2312 close to the fourth valve stem 211 is the triggering side. A limiting post is arranged on the other side of the triggering end 2312 opposite to the triggering side. One end of the ventilation spring 233 is sleeved on the limiting post, and the other end abuts against the inner wall of the main engine clean water tank 22. The fourth valve seat 214 has a through hole, and the fourth valve stem 211 passes through the through hole of the fourth valve seat 214, and the end of the fourth valve stem 211 can extend out of the through hole of the fourth valve seat 214.

[0101] When the main engine clean water tank 22 is docked with the second water replenishment port 14, please refer to Figure 8 ., the fourth water stop valve and the third water stop valve 17 interact and both switch to the open state. The fourth valve stem 211 is in the open position. The upper end of the fourth valve stem 211 presses the triggering end 2312, causing the opening and closing member 231 to rotate. The triggering end 2312 compresses the ventilation spring 233, and the sealing end 2311 rotates away from the ventilation port 220 relatively, thereby opening the ventilation port 220 and connecting the main engine clean water tank 22 with the external atmosphere. When the main engine clean water tank 22 is separated from the second water replenishment port 14, please refer to Figure 9 ., the fourth valve stem 211 moves to the closed position, the fourth valve stem 211 releases the triggering end 2312, and the interaction with the triggering end 2312 is released. Under the action of the ventilation spring 233, the opening and closing member 231 rotates, and the sealing end 2311 rotates towards the ventilation port 220, so that the sealing ring 235 seals the ventilation port 220.

[0102] In a specific embodiment, please refer to Figure 10, the opening and closing member 231 is pivotally connected to the main machine fresh water tank 22 through a rotating shaft. The opening and closing member 231 includes a connecting shaft 2314, and the connecting shaft 2314 is arranged in the middle of the opening and closing member 231, between the triggering end 2312 and the sealing end 2311. A shaft hole is provided on the inner wall of the main machine fresh water tank 22, and the connecting shaft 2314 is pivotally installed in the shaft hole. Specifically, the connecting shaft 2314 includes two coaxially arranged shaft segments, and the two shaft segments are respectively located on both sides of the opening and closing member 231, that is, both sides of the opening and closing member 231 are pivotally connected to and positioned with the main machine fresh water tank 22. The opening and closing member 231 is installed on the inner wall of the main machine fresh water tank through the two shaft segments, and the opening and closing member 231 pivots smoothly and is not prone to jamming.

[0103] Figure 11 Another ventilation structure is shown. Please refer to Figure 11 As shown, the difference between the ventilation structure of this embodiment and the above embodiment is that the sealing end of the ventilation structure 23a provided in this embodiment is located outside the main machine fresh water tank 22. Specifically, the main machine fresh water tank 22a is provided with a ventilation port 220a. The ventilation structure 23a includes a straight rod-shaped opening and closing member, a ventilation spring 233a and a sealing ring 235a. The opening and closing member penetrates through the ventilation port 220a. The ventilation structure 23a includes a triggering end 232a and a sealing end 231a. The sealing end 231a is located outside the ventilation port 220a, and the triggering end 232a is located inside the ventilation port 220a. The sealing ring 235a is arranged on the inner side of the sealing end 231a close to the ventilation port 220a. The ventilation spring 233a is sleeved on the opening and closing member, with one end abutted against the triggering end 232a and the other end abutted against the inner wall of the main machine fresh water tank 22.

[0104] The fourth water stop valve 21a includes a fourth valve stem 211a, a fourth sealing member 212a, and a fourth spring 213a. The fourth valve stem 211a and the fourth valve seat 214a. The fourth valve seat 214a has a through hole, and the fourth valve stem 211a passes through the through hole of the fourth valve seat 214a, and the end of the fourth valve stem 211a can extend out from the through hole of the fourth valve seat 214a. When the main machine fresh water tank 22a is docked with the second water replenishing port 14, please refer to Figure 11, the fourth water stop valve 21a and the third water stop valve 17 interact and both switch to the open state. The upper end of the fourth valve stem 211 presses against the trigger end 232a, causing the opening and closing member 23a to move upward. The trigger end 232a compresses the ventilation spring 233a, and the sealing end 231a moves outward relative to the ventilation port 220a, thereby opening the ventilation port 220 and connecting the main machine water tank 22a with the outside atmosphere. When the main machine water tank 22a is separated from the second water replenishing port 14, the fourth valve stem 211a moves to the closed position, the fourth valve stem 211a releases the trigger end 232a, and the interaction with the trigger end 232a is released. Under the action of the ventilation spring 233a, the opening and closing member 231 moves into the main machine water tank 22a, and the sealing end 231a moves toward the ventilation port 220a, so that the sealing ring 235a seals the ventilation port 220.

[0105] Since the surface cleaning device consumes the clean water in the main machine water tank during normal cleaning, in order to balance the air pressure state in the water tank during use, in some embodiments, the main machine water tank 22 further includes a duckbill valve, and the duckbill valve is arranged at the top of the inner wall of the main machine water tank 22. The duckbill valve has two flexible valve pieces. In the natural state, the two flexible valve pieces are attached to each other. When the water volume in the water tank is consumed and the internal air pressure decreases while the external air pressure is relatively high, the two valve pieces can open, allowing the external gas to enter the main machine water tank 22, so that the main machine water tank 22 can continuously supply cleaning water outward. When the internal pressure increases or the liquid level exceeds the duckbill valve, the water pressure causes the valve pieces of the two duckbill valves to fit more tightly together, thereby blocking the internal liquid or air from flowing out to the outside. The duckbill valve realizes the internal and external pressure balance during the use of the main machine water tank and ensures the normal outward output of the water in the water tank.

[0106] Embodiment 2

[0107] The present application also provides a surface cleaning system, including a surface cleaning device and the surface cleaning device base station provided in any of the above embodiments. For the surface cleaning device, the surface cleaning device base station and their matching structures, please refer to the above embodiments and will not be elaborated here.

[0108] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, those of ordinary skill in the art can make other different forms of changes or variations without making creative efforts, and all should fall within the protection scope of the present application.

Claims

1. A base station for a surface cleaning device, characterized in that, Comprising: A base including a docking position for supporting and docking a surface cleaning device; A water storage groove provided in the base; A first water replenishing port communicating with the water storage groove; A second water replenishing port provided at the docking position and adapted to be docked and communicated with the main water tank of the surface cleaning device; A water replenishing pipeline, one end of which communicates with the first water replenishing port and the other end of which communicates with the second water replenishing port; When the surface cleaning device is located at the docking position, the main water tank is communicated with the second water replenishing port; the main water tank, the water replenishing pipeline and the water storage groove can be mutually communicated to form a communicating vessel structure, and water can sequentially pass through the first water replenishing port, the water replenishing pipeline and the second water replenishing port to replenish water to the main water tank.

2. The base station according to claim 1, wherein The water storage groove has an upper limit liquid level. When the surface cleaning device is located at the docking position, the upper limit liquid level is not higher than the top wall of the main water tank. When the liquid level in the water storage groove reaches the upper limit liquid level, the water source stops supplying water outward, and the liquid level of the main water tank is flush with the upper limit liquid level.

3. The base station according to claim 1, characterized in that The horizontal height of the second water replenishing port is lower than that of the first water replenishing port; when the surface cleaning device is located at the docking position, at least a part of the main water tank is located above the second water replenishing port.

4. The base station according to claim 1, characterized in that, The base station further includes a water replenishing tank for storing liquid and a tank pedestal for supporting the water replenishing tank. The water replenishing tank is used for supplying liquid to the water storage groove; the horizontal height of the water replenishing tank is at least partially higher than that of the water storage groove.

5. The base station according to claim 4, characterized in that The water replenishing tank includes a water replenishing state of docking with the first water replenishing port. The first water stop valve is provided at the first water replenishing port. The first water stop valve has a closed state and an open state under a predetermined acting force. When the water replenishing tank is docked with the first water replenishing port, the water replenishing tank applies a predetermined acting force to the first water stop valve, and the first water stop valve switches to the open state, and the water storage groove and the water replenishing pipeline are mutually communicated; when the water replenishing tank is disassembled from the tank pedestal, the first water stop valve automatically returns to the closed state, and the water storage groove and the water replenishing pipeline are blocked.

6. The base station according to claim 5, characterized in that, The water replenishing tank includes a water replenishing port for docking with the first water replenishing port and a second water stop valve provided at the water replenishing port. In the water replenishing state, the second water stop valve and the first water stop valve apply acting forces to each other, and both the second water stop valve and the first water stop valve are in the open state; when the water replenishing tank is separated from the tank pedestal, the mutual acting force is released, and the first water stop valve and the second water stop valve automatically close.

7. The base station according to claim 4, characterized in that, The water replenishing port of the water replenishing tank is docked with the first water replenishing port. The water replenishing port includes a water sealing structure. When the liquid level in the water storage groove is not lower than the water sealing structure, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops supplying liquid to the water replenishing pipeline.

8. The base station according to claim 7, characterized in that The water sealing structure includes a circumferential enclosure, and the lower edge of the circumferential enclosure extends into the water storage groove; when the liquid level of the water storage groove is lower than the water sealing structure, an air path for air to enter the water replenishing tank is formed between the lower edge of the circumferential enclosure and the water storage groove; when the liquid level of the water storage groove submerges the lower edge of the circumferential enclosure, the air path is blocked, and the water replenishing tank stops delivering liquid to the water replenishing pipeline.

9. The base station according to claim 1, characterized in that, It further includes a liquid level detection sensor for detecting the water level of the water storage groove and an electric control valve for controlling the connection and disconnection between the water storage groove and the water source. The electric control valve closes in response to the liquid level detection sensor detecting that the water storage groove reaches the upper limit liquid level, and the water source stops replenishing water to the water storage groove.

10. The base station according to claim 1, characterized in that, A third water stop valve is provided at the second water replenishing port. The third water stop valve has a closed state and an open state; when the surface cleaning device is located at the docking position, the main machine clean water tank triggers the third water stop valve to switch to the open state; when the main machine clean water tank is removed from the base station, the third water stop valve automatically returns to the closed state.

11. A surface cleaning device base station, characterized in that, It includes: A water replenishing tank, including a water replenishing port; A base, including a water tank support seat for docking with the water replenishing tank; A water storage groove, provided on the water tank support seat; A first water replenishing port, provided at the bottom of the water storage groove for docking and communicating with the water replenishing tank; A second water replenishing port, provided on the base and adapted to dock and communicate with the main machine clean water tank of the surface cleaning device; A water replenishing pipeline, with one end communicating with the first water replenishing port and the other end communicating with the second water replenishing port; When the surface cleaning device docks at the base station, the main machine clean water tank of the surface cleaning device communicates with the second water replenishing port, and the water replenishing tank is supported on the water tank support seat; the main machine clean water tank, the water replenishing pipeline and the water storage groove are interconnected to form a communicating vessel structure; The water replenishing port includes a water sealing structure. The water replenishing port extends at least partially into the water storage groove. When the liquid level of the water storage groove is lower than the water sealing structure, under the action of gravity, the liquid in the water replenishing tank flows from the water replenishing tank to the first water replenishing port. When the liquid level of the water storage groove reaches the water sealing structure, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops delivering liquid to the first water replenishing port.

12. The base station according to claim 11, characterized in that, An air pressure balance path is formed by mutual matching between the water storage groove and the water replenishing port. When the liquid level of the water storage groove is higher than or equal to the water sealing structure, the air pressure balance path is cut off, the water replenishing tank is isolated from the outside atmosphere, and the water replenishing tank stops delivering liquid to the first water replenishing port.

13. The base station according to claim 12, characterized in that, The water sealing structure includes a circumferential enclosure, and the lower edge of the circumferential enclosure extends into the water storage groove; when the liquid level of the water storage groove is lower than the circumferential enclosure, an air pressure balance path for air to enter the water replenishing tank is formed between the lower edge of the circumferential enclosure and the water storage groove; when the liquid level of the water storage groove submerges the lower edge of the circumferential enclosure, the air pressure balance path is cut off.

14. The base station according to claim 12, characterized in that, The supplementary water tank is detachably arranged on the water tank seat. A first water stop valve is arranged at the first water replenishing port. The supplementary water tank includes a second water stop valve arranged at the water replenishing port. When the supplementary water tank is installed on the water tank seat, the first water stop valve and the second water stop valve interact to switch to the open state. When the supplementary water tank is separated from the water tank seat, the first water stop valve and the second water stop valve automatically return to the closed state.

15. A surface cleaning system, characterized in that, Comprising: A base station, including a base, a water storage groove, a first water replenishing port, a second water replenishing port, and a water replenishing pipeline. The water storage groove is arranged on the base. The first water replenishing inlet communicates with the water storage groove. The water storage groove communicates with a water source. The second water replenishing port is adapted to be butt-connected and communicated with the main water tank of the surface cleaning device. One end of the water replenishing pipeline communicates with the first water replenishing port, and the other end communicates with the second water replenishing port; A surface cleaning device, including a main water tank of the host. The surface cleaning device includes a docking state for docking with the base station; When the surface cleaning device is in the docking state, the inner wall contour of the main water tank of the host is lower than the upper edge of the water storage groove. The upper limit liquid level of the water storage groove is flush with the rated capacity liquid level of the main water tank of the host. The main water tank, the water replenishing pipeline, and the water storage groove form a communicating vessel structure.

16. The surface cleaning system according to claim 15, characterized in that, The surface cleaning device includes a floor brush and a control part. The floor brush is used to move on the cleaning surface to clean the surface. The control part is movably connected to the floor brush; The main water tank of the host is arranged on the floor brush. The base station further includes a supplementary water tank. The supplementary water tank is butt-connected to the first water replenishing port. The supplementary water tank is higher than the main water tank of the host.

17. The surface cleaning system according to claim 15, wherein The first water replenishing port is arranged at the bottom of the water storage groove.

Images