Surface cleaning device base station and cleaning system

Abstract

The utility model discloses a surface cleaning equipment base station and cleaning system, including water replenishing tank, base, water groove, first water replenishing port, second water replenishing port, water replenishing pipeline, water replenishing tank is supported in the top of water tank support, and the water replenishing port of water replenishing tank is inserted in the water storage groove and is docked with first water replenishing port, and the water replenishing port, first water replenishing port, water replenishing pipeline and second water replenishing port form the unpowered water replenishing channel, and the water source of water replenishing tank flows to host computer clean water tank under the action of gravity and replenishes water for host computer clean water tank, and the water replenishing structure is simple, and cost reduction.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a surface cleaning equipment base station and a cleaning system. Background Technology

[0002] Surface cleaning equipment, such as floor scrubbers, is equipped with a clean water tank and a wastewater tank. When the clean water tank is low on water, it needs to dock at a base station and connect to the base station to replenish the water.

[0003] To replenish water for surface cleaning equipment, existing base stations typically employ a water tank and a pump mechanism. The water tank has a large capacity and holds clean water, while the pump mechanism pressurizes the water and delivers it to the main unit's clean water tank. Since the pump mechanism mainly consists of a motor and a water pump, it not only incurs high component costs and inevitably generates energy consumption and noise during operation, but also occupies internal space in the base station, increasing its overall weight.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0005] Therefore, the present invention aims to solve the technical problem of high water replenishment costs for existing base stations.

[0006] To solve the above-mentioned technical problems, this utility model provides a surface cleaning equipment base station, comprising:

[0007] Water supply tank, including water inlet;

[0008] The base includes a water tank support that docks with the water supply tank;

[0009] A water storage groove is provided on the water tank support;

[0010] The first water supply port is located at the bottom of the water storage groove;

[0011] The second water supply port is located on the base and is adapted to connect with the main water tank of the surface cleaning equipment.

[0012] The water supply pipe is connected at one end to the first water supply port and at the other end to the second water supply port;

[0013] The water replenishment tank is supported above the water tank support. The water inlet is inserted into the water storage groove and connects with the first water replenishment port. The water inlet, the first water replenishment port, the water replenishment pipeline and the second water replenishment port form a non-powered water replenishment channel. The water source in the water replenishment tank flows to the main unit's clean water tank under the action of gravity to replenish the main unit's clean water tank.

[0014] In one embodiment, the second water supply port is at a lower level than the first water supply port; when the surface cleaning device is in the docking position, the main unit's clean water tank is at least partially located above the second water supply port.

[0015] In one embodiment, the water storage groove has an upper limit liquid level. When the liquid level in the water storage groove is lower than the upper limit liquid level, under the action of gravity, the liquid in the water replenishment tank flows from the water replenishment tank to the first water replenishment port. When the liquid level in the water storage groove is higher than or equal to the upper limit liquid level, the water replenishment tank is isolated from the outside atmosphere, and the water replenishment tank stops supplying liquid to the first water replenishment port.

[0016] In one embodiment, the water storage groove and the water inlet are matched to form a pressure balance passage. When the liquid level in the water storage groove is higher than or equal to the upper limit liquid level, the pressure balance passage is cut off, the water inlet tank is isolated from the outside atmosphere, and the water inlet tank stops supplying liquid to the first water inlet port.

[0017] In one embodiment, the water inlet includes a circumferential barrier, the lower edge of which extends into the water storage groove; when the liquid level in the water storage groove submerges the lower edge of the circumferential barrier, the air pressure balance passage is cut off.

[0018] In one embodiment, the water inlet further includes a plurality of guide structures, each of which extends downward from the lower edge of the circumferential enclosure, and the plurality of guide structures are spaced apart from each other to form at least a portion of the air pressure balance passage connecting the water inlet tank and the outside.

[0019] In one embodiment, when the surface cleaning device is docked with the base station, the upper limit liquid level of the water storage groove is level with the rated capacity liquid level of the host water tank.

[0020] In one embodiment, the water replenishment tank is used to supply liquid to the water storage groove; the water replenishment tank is at least partially higher than the water storage groove.

[0021] In one embodiment, a first water stop valve is provided in the first water supply port. The first water stop valve is actuated to open when the water supply tank is installed and automatically closed when the water supply tank is removed. A third water stop valve is provided in the second water supply port. The third water stop valve is actuated to open when the surface cleaning device is stopped and automatically closed when the surface cleaning device is separated.

[0022] In one embodiment, the water replenishment tank includes a second stop valve disposed at the water replenishment port. In the water replenishment state, the second stop valve and the first stop valve exert force on each other. Both the second stop valve and the first stop valve are in the open state. The water replenishment tank separates from the water tank support, the mutual force is released, and the first stop valve and the second stop valve automatically close.

[0023] In addition, this application also provides a cleaning system, including a surface cleaning device and a surface cleaning device base station as described in any of the above embodiments. The base includes a docking position for supporting and docking the surface cleaning device. The second water supply port is disposed at the docking position. When the surface cleaning device is located at the docking position, the main water tank of the surface cleaning device is docked and connected to the second water supply port.

[0024] The technical solution provided by this utility model has the following advantages:

[0025] The surface cleaning equipment base station and cleaning system provided by this utility model include a water replenishment tank, a base, a water groove, a first water replenishment port, a second water replenishment port, and a water replenishment pipeline. The water replenishment tank is supported above the water tank support. The water replenishment port of the water replenishment tank is inserted into the water storage groove and connected to the first water replenishment port. The water replenishment port, the first water replenishment port, the water replenishment pipeline, and the second water replenishment port form a non-powered water replenishment channel. Under the action of gravity, the water from the source can automatically flow to the main unit's clean water tank, realizing non-powered water replenishment, saving high-cost power components, simplifying the structure, saving electricity, and reducing water replenishment noise and base station weight. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the surface cleaning equipment base station provided in the embodiments of this application;

[0028] Figure 2 This is a three-dimensional structural diagram of a surface cleaning equipment base station provided in a specific embodiment of this application;

[0029] Figure 3 for Figure 2 A cross-sectional view of the surface cleaning equipment base station shown;

[0030] Figure 4 for Figure 3 A magnified structural diagram of region A shown;

[0031] Figure 5 A three-dimensional structural diagram of a base station water replenishment tank provided in an embodiment of this application;

[0032] Figure 6 A schematic diagram of the three-dimensional structure of the floor brush of the base station docking surface cleaning device provided in an embodiment of this application;

[0033] Figure 7 A side view of the host water tank and base station docking state provided in an embodiment of this application.

[0034] Figure 8 A partial cross-sectional structural diagram of the host water tank and base station docking state provided in an embodiment of this application;

[0035] Figure 9 This is a partial cross-sectional structural diagram of the host water tank in an embodiment of this application, in a state where it is not connected to the base station;

[0036] Figure 10 This is a three-dimensional structural diagram of the internal structure of the main unit's clean water tank according to an embodiment of this application;

[0037] Figure 11 A cross-sectional view of the ventilation structure of the main unit's clean water tank provided in another embodiment of this application. Detailed Implementation

[0038] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. The application will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0040] In this application, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0041] Example 1

[0042] This embodiment provides a surface cleaning equipment base station (hereinafter referred to as the base station) for docking with surface cleaning equipment and replenishing water to the surface cleaning equipment. In a specific implementation scenario, the surface cleaning equipment is a floor scrubber. When not in use, the floor scrubber can be parked at the base station, and the base station can replenish water and charge the floor scrubber.

[0043] Please see Figure 1 and Figure 3 The base station 100 includes a base 11, a water storage groove 12, a first water supply port 13, a second water supply port 14, and a water supply pipe 15. The water storage groove 12, the first water supply port 13, and the second water supply port 14 are all located on the base 11. One end of the water supply pipe 15 is connected to the first water supply port 13, and the other end of the water supply pipe 15 is connected to the second water supply port 14. The water storage groove 12 is located at the end of the water supply pipe 15 connected to the first water supply port 13, and the first water supply port 13 is connected to the bottom of the water storage groove 12. Specifically, the first water supply port 13 is used to connect to a water source to receive water replenishment. The second water supply port 14 is adapted to connect to the main unit's clean water tank 22 of the surface cleaning equipment (see...). Figure 6 (This is used to replenish water to surface cleaning equipment.)

[0044] The base 11 is suitable for placement on the ground, serving to support and dock the surface cleaning equipment. Specifically, the base 11 forms a docking position 112 for the surface cleaning equipment to rest on, with the bottom of the equipment supported on the docking position 112, at which point the surface cleaning equipment is in a docked state. In the docked state, the surface cleaning equipment can perform functions such as charging, water replenishment, or self-cleaning.

[0045] For specific implementation scenarios, please refer to Figure 6 As shown, the surface cleaning device includes a floor brush 20 and an operating unit (not shown). The floor brush 20 is used to move across the cleaning surface to clean it, and the operating unit is movably connected to the floor brush 20. Specifically, the operating unit is pivotally connected to the floor brush 20, and the operating unit can rotate relative to the floor brush 20 to adjust the tilt angle of the operating unit, accommodating users of different heights and facilitating the pushing and pulling operation of the floor brush. The floor brush 20 is shaped to match the base station's docking position 112, and the floor brush 20 can be supported on the docking position 112. The main unit's clean water tank 22 is mounted on the floor brush 20.

[0046] The water storage groove 12 is used to store a certain amount of liquid. When the base station 100 is supported on a horizontal surface, the water storage groove 12 is higher than the second water replenishment port 14. In this embodiment, the first water replenishment port 13 is located on the bottom wall of the water storage groove 12, and the horizontal height of the first water replenishment port 13 is higher than that of the second water replenishment port 14. In other words, the horizontal height of the second water replenishment port 14 is lower than that of the first water replenishment port 13. When the surface cleaning device is located in the docking position 112, the main unit's clean water tank 22 is at least partially located above the second water replenishment port 14, and the second water replenishment port 14 is connected to the bottom of the main unit's clean water tank 22. In a specific embodiment, the water replenishment pipe 15 is located inside the base 11. The water replenishment pipe 15 is a flexible hose, and the water replenishment pipe 15 connects the first water replenishment port 13 and the second water replenishment port 14.

[0047] When the surface cleaning equipment is docked at base station 100, the floor brush 20 is positioned at docking position 112, and the main unit's clean water tank 22 is connected to the second water replenishment port 14. The main unit's clean water tank 22 is connected to the water replenishment pipeline 15 through the second water replenishment port 14. Thus, the main unit's clean water tank 22 and the water storage groove 12 are respectively connected to both ends of the water replenishment pipeline 15. The main unit's clean water tank 22, the water replenishment pipeline 15, and the water storage groove 12 form a non-powered water replenishment channel. That is, there is no power module in the water flow path from the main unit's clean water tank 22, the water storage groove 12, the water replenishment pipeline 15, and the main unit's clean water tank 22; water replenishment to the main unit's clean water tank 22 relies entirely on gravity. Specifically, the water in the water replenishment tank 18 flows out automatically under gravity, passing through the water storage groove 12, the first water replenishment port 13, the water replenishment pipeline 15, and the second water replenishment port 14, before flowing into the main unit's clean water tank 22. The main unit's clean water tank 22, the water supply pipe 15, and the water storage groove 12 constitute a communicating vessel structure. The main unit's clean water tank 22 and the water storage groove 12 are respectively equivalent to containers with open tops and interconnected bottoms. According to the principle of communicating vessels, if the same liquid is injected, the liquid levels in each container within the communicating vessel will always remain at the same horizontal level when the liquid is not flowing. By injecting liquid into the water storage groove 12 and controlling the liquid level in the water storage groove 12, after the liquid flow stabilizes, the liquid level in the water storage groove 12 is at the same horizontal level as the liquid level in the main unit's clean water tank 22.

[0048] For details, please see Figure 7 As shown, the water storage tank 12 has an upper limit level L. When the liquid level in the water storage tank 12 reaches the upper limit level L, the water supply to the water storage tank 12 stops. The main unit's clean water tank 22 has a rated capacity level, which is at the same horizontal level as the upper limit level L. When the liquid level in the water storage tank 12 reaches the upper limit level L, the liquid level in the main unit's clean water tank 22 reaches the rated capacity level, which is level with the upper limit level, at which point water replenishment is complete.

[0049] The upper limit level L is the preset limit level of the water storage tank 12, and also the maximum replenishment level of the main unit's clean water tank 22. In other words, in the communicating vessel state, the water level in the water storage tank 12 is equal to the water level in the main unit's clean water tank 22, and the maximum water levels of both the water storage tank 12 and the main unit's clean water tank 22 will not exceed the upper limit level L. Please continue reading... Figure 7 When the base station is supported on a horizontal surface, the host water tank 22 is connected to the base station. The height of the water storage groove 12 is H, the height of the host water tank 22 is h, and the upper limit liquid level of the water storage groove is L. Wherein, L is less than H, and h is less than H.

[0050] In specific implementation, when the surface cleaning equipment is located at the docking position 112, the upper end of the main unit's clean water tank 22 is connected to the outside atmosphere, and the lower end of the main unit's clean water tank 22 is connected to the water replenishment pipe 15; when the liquid level of the water storage groove 12 is lower than the upper limit liquid level L, the upper end or side wall of the water storage groove 12 is connected to the outside atmosphere, and the main unit's clean water tank 22 and the water storage groove 12 are connected to each other through the water replenishment pipe 15, forming a communicating vessel structure.

[0051] Please see 3 and Figure 4 As shown, the upper end of the water storage groove 12 is not enclosed, allowing it to communicate with the outside atmosphere. The base station 100 provides a water source to replenish the surface cleaning equipment; specifically, the water source can be a water tank 18. In the embodiment where the water source is the water tank 18, the water tank 18 is docked with the water storage groove 12, with the water inlet 180 of the water tank 18 fitting with the side wall of the water storage groove 12 through a gap. The water storage groove 12 communicates with the outside atmosphere through this gap.

[0052] In other embodiments, ventilation holes are provided at the upper end of the side wall of the water storage groove 12, and these ventilation holes connect the interior of the water storage groove 12 to the outside, thereby achieving other connections between the water storage groove 12 and the outside world. Grooves or grids are provided on the side wall of the water storage groove 12, and these grooves or grids connect the interior of the water storage groove 12 to the outside world, achieving communication between the water storage groove 12 and the outside atmosphere. Alternatively, a ventilated filter screen can be provided at the upper end of the side wall of the water storage groove 12. The filter screen can isolate external debris from entering the water storage groove 12, and can also achieve communication between the water storage groove 12 and the outside atmosphere. There are many variations of the ventilation structure of the water storage groove 12, which will not be described in detail here.

[0053] Please see Figure 6 and Figure 7As shown, a vent 220 (220a) is provided on the top wall of the main unit's clean water tank 22. The vent 220 is used to connect the interior of the main unit's clean water tank 22 with the external atmosphere. When the surface cleaning equipment is in the docking position 112, the vent 220 is open, and the main unit's clean water tank 22 is connected to the outside atmosphere through the vent 220. The upper limit liquid level L of the water storage groove 12 is not higher than the top wall of the main unit's clean water tank 22, thus ensuring that the water replenishment does not exceed the top wall of the main unit's clean water tank 22, and water will not overflow from the vent 22. When the water storage groove 12 reaches the upper limit liquid level L, the water source stops replenishing water, and the main unit's clean water tank 22 reaches the rated capacity liquid level, which is level 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, thus controlling the liquid level in the water storage groove 12 to be at or below the upper limit liquid level L, and the liquid level in the main unit's clean water tank 22 will not exceed the rated capacity liquid level (upper limit liquid level L).

[0054] In other embodiments, the main unit's clean water tank 22 can also be ventilated through other structures. For example, a water seal valve can be installed on the top wall of the main unit's clean water tank 22. When the liquid level is higher than the water seal valve, the water seal valve closes, isolating the main unit's clean water tank 22 from the outside atmosphere. When the liquid level is lower than the water seal valve, the water seal valve connects the inside of the main unit's clean water tank 22 to the outside, allowing outside air to enter and exit the main unit's clean water tank 22. This ensures that when the liquid level in the main unit's clean water tank 22 reaches the rated capacity level, the water seal valve is submerged below the liquid surface, preventing the main unit's clean water tank 22 from ventilating and thus preventing further water replenishment. In other embodiments, the main unit's clean water tank 22 can also be ventilated through a waterproof and breathable membrane. The waterproof and breathable membrane allows gas to flow but blocks water from passing through, thus achieving pressure balance in the main unit's clean water tank 22.

[0055] The surface cleaning equipment base station provided in this embodiment features a water storage groove. The water storage groove, water supply pipeline, and the main unit's clean water tank of the surface cleaning equipment in its parked state form a communicating vessel structure. Under the influence of gravity, water from the source can automatically flow to the main unit's clean water tank, achieving unpowered water replenishment. The base station does not require a water pump mechanism, saving component costs and reducing the weight and size of the base station.

[0056] To facilitate the interface between the surface cleaning equipment and the base station, please refer to the specific embodiments. Figure 2 and Figure 3As shown, the second water supply port 14 is located at the docking position 112. The second water supply port 14 includes an upward guide platform 141 from the docking position. The cross-section of the guide platform 141 is a frustoconical shape that gradually increases in size from top to bottom. The middle of the guide platform 141 has a through channel for connecting with the water outlet plug of the main unit's clean water tank 22. Correspondingly, the bottom of the main unit's 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's clean water tank 22 is located in the slot. During the docking process between the main unit's clean water tank 22 and the second water supply port 14, the upper end of the guide platform 141 extends into the slot, and the outer wall of the guide platform 141 slides into the inner wall of the slot. Since the cross-section of the guide platform 141 gradually increases in size from top to bottom, it can guide and position the main unit's clean water tank, ensuring reliable alignment between the main unit's clean water tank 22 and the second water supply port. When the water outlet plug of the main unit's clean water tank is inserted into the channel of the guide platform 141, the guide platform 141 fits against the outer wall of the slot and is limited, thus completing the docking of the main unit's clean water tank 22 with the second water supply port 14.

[0057] For a specific embodiment, please refer to Figures 2 to 5 The water tank 18 includes a tank body (not shown) for holding water, with a water inlet 180 located at one end of the tank body. Water inside the tank flows out through the water inlet 180. When the water inlet 180 is connected to the first water inlet port 13, the tank body is connected to the first water inlet port 13. If the main unit's clean water tank 22 is also connected to the second water inlet port 14, the water inside the tank can flow sequentially through the water inlet 180 and the first water inlet port 13 to the water supply pipe 15, replenishing the main unit's clean water tank 22. The horizontal height of the water tank 18 is at least partially higher than the water storage groove 12. Under the action of gravity, the water in the water tank 18 can flow out into the water storage groove 12 and can fill the water storage groove 12 to a certain extent, without the water in the water storage groove 12 overflowing.

[0058] Please see Figure 2 and Figure 3 The base 11 includes a water tank support 110 for supporting the water tank 18. A water storage groove 12 is disposed on the top of the water tank support 110, and the water tank 18 is detachably mounted on the water tank support 110. When the water inlet 180 of the water tank 18 is connected to the first water inlet port 13, the water inlet 180 is at least partially inserted into the water storage groove 12, and the water tank 18 is in a water-filling state connected to the first water inlet port 13. When the water tank 18 is separated from the water tank support 110, the water tank 18 is in an independent state. Water or cleaning solution can be added to the water tank 18.

[0059] To facilitate the independent disassembly of the main unit's clean water tank 22 and replenishment water tank 18, and to avoid overflow issues caused by disassembling one of them. For a specific embodiment, please refer to... Figure 4As shown, the first water supply port 13 is equipped with a first water stop valve 16. The first water stop valve 16 has a closed state and an open state subjected to a predetermined force. In the open state, the water storage groove 12 and the water supply pipe 15 are interconnected. When the predetermined force is released, the first water stop valve 16 automatically returns to the closed state, and the water storage groove 12 and the water supply pipe 15 are blocked.

[0060] Specifically, when the water supply tank 18 is connected to the first water supply port 13, the water supply tank 18 applies a predetermined force to the first stop valve 16, causing the first stop valve 16 to switch from a closed state to an open state. At this time, the water supply tank 18 is connected to the water supply pipeline 15. When the water supply tank 18 is removed from the water tank support 110, the first stop valve 16 automatically switches to a closed state. Thus, the first water supply port 13 is only open when connected to the water supply tank 18; once the water supply tank 18 is removed, the first stop valve 16 automatically closes the first water supply port 13, thereby preventing water backflow.

[0061] The water supply tank 18 includes a second stop valve 182 located at the water supply inlet 180. The second stop valve 182 controls the opening and closing of the water supply inlet 180. The second stop valve 182 can automatically close the water supply inlet 180. When subjected to external force, the second stop valve 182 can switch to the open state, thus connecting the water tank 18 to the outside world through the water supply inlet 180. Specifically, when the water supply tank 18 is connected to the first water supply port 13, the second stop valve 182 and the first stop valve 16 exert force on each other, and both the second stop valve 182 and the first stop valve 16 are in the open state. When the water supply tank 18 separates from the water tank support 110, the mutual force is released, and the first stop valve 16 and the second stop valve 182 automatically close.

[0062] For specific implementation details, please refer to [link / reference]. Figure 4 As shown, the first stop valve 16 includes a first valve stem 161, a first sealing element 162, a first spring 163, and a first valve seat 164. The first sealing element 162 seals the first water supply port 13. The first sealing element 162 is mounted on the first valve stem 161, which passes through the first water supply port 13. The first spring 163 is sleeved on the first valve stem 161, with one end abutting against the first valve stem 161 and the other end abutting against the valve seat 164. The first spring 163 presses against the first valve stem 161, causing the first valve stem 161 to engage with the first sealing element 162 and seal against the first water supply port 13, thus sealing the first water supply port 13. When the first valve stem 161 is subjected to axial external force, it overcomes the elastic force of the first spring 163, compressing the first spring 163, and the first sealing element 162 opens the first water supply port 13.

[0063] Similarly, the second 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 seals the water inlet 180. The second seal 1821 is mounted on the second valve stem 1822, which passes through the water inlet 180. The second spring 1823 is sleeved on the second valve stem 1822, with one end abutting against the second valve stem 1822 and the other end abutting against the second valve seat. The second spring 1823 presses against the second valve stem 1822, causing the second valve stem 1822 to work in conjunction with the second seal 1821 to seal against the water inlet 180, thereby sealing the water inlet 180. When the second valve stem 1822 is subjected to axial external force, it overcomes the elastic force of the second spring 1823, compressing the second spring 1823, and the second seal 1821 opens the water inlet 180.

[0064] When the water supply tank 18 is supported on the water tank support 110, the water supply port 180 is connected to the first water supply port 13. The first valve stem 161 and the second valve stem 1822 press against each other to apply axial force, thereby moving both the first valve stem 161 and the second valve stem 1822 to the open position. The first stop valve 16 and the second stop valve 182 are both in the open state, and the water supply tank 18 is connected to the water supply 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 ejector and presses against the end of the second valve stem 1822. The two interact, and the first valve stem 161 moves downward a predetermined distance, and the second valve stem 1822 moves upward a predetermined distance, thereby opening the first water supply port 13 and the water supply port 180, so that the water supply tank 18 is connected to the water storage groove 12 and the water supply pipeline 15.

[0065] To avoid water overflow at the second water supply port 14 after the surface cleaning device is separated from the base station, in a specific embodiment, please refer to... Figure 8 As shown, the second water supply port 14 is equipped with a third stop valve 17, which is used to control the opening and closing of the second water supply port 14. The third stop valve 17 has a closed state and an open state. When the surface cleaning equipment is docked at the docking position 112, the main unit's clean water tank 22 is connected to the second water supply port 14, and the main unit's clean water tank 22 triggers the third stop valve 17 to switch to the open state; when the surface cleaning equipment is removed from the base station, the third stop valve 17 can automatically return to the closed state, thereby preventing water from overflowing from the second water supply port 14.

[0066] Specifically, the third 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 seals the second water supply port 14. The third seal 172 is mounted on the third valve stem 171, which passes through the second water supply port 14. The third spring 173 is sleeved on the third valve stem 171, with one end abutting against the third valve stem 171 and the other end abutting against the third valve seat 174. The third spring 173 presses against the third valve stem 171, causing the third valve stem 171 to engage with the third seal 172 and seal against the second water supply port 14, thus sealing the second water supply port 14. When the third valve stem 171 is subjected to axial external force, it overcomes the elastic force of the third spring 173, compressing the third spring 173, and the third seal 172 opens the second water supply port 14.

[0067] The first, second, and third sealing elements can be rubber rings or flexible plastic sealing rings.

[0068] As described above, the third stop valve 17 opens in response to docking with the surface cleaning equipment and closes automatically in response to separation from the surface cleaning equipment. When the surface cleaning equipment docks with the base station, the main unit's clean water tank 22 is connected to the water supply pipeline through the second water supply port 14. When the surface cleaning equipment is separated from the base station, the third stop valve 17 automatically closes the second water supply port 14. As long as there is water stored in the water supply tank 18, the water in the main unit's clean water tank 22, which is in a water shortage state, can be transported to the main unit's clean water tank 22 under gravity until the liquid levels in both the water storage groove 12 and the main unit's clean water tank 22 reach the upper limit liquid level L.

[0069] There are several solutions for automatically controlling the water replenishment stop. Below, we mainly describe two implementation schemes:

[0070] The first option is to install a water sealing structure 181 in the water replenishment tank 18. The water sealing structure 181 extends at least partially into the water storage groove 12. When the liquid level in the water storage groove 12 reaches the upper limit liquid level L, the water sealing structure 181 will seal and isolate the water replenishment tank 18 from the outside atmospheric environment. Because the internal air pressure of the water replenishment tank 18 cannot be balanced, the water cannot continue to flow out.

[0071] The second option is to use a liquid level detection sensor to detect whether the liquid level in the water storage tank 12 has reached the upper limit L. If it has reached the upper limit L, the water source will be stopped from flowing out through an electronic control valve.

[0072] The first option will be explained in detail below.

[0073] Please see Figure 4 and Figure 5The water inlet 180 of the water replenishment tank 18 is connected to the first water replenishment port 13. The water inlet 180 includes a water-sealing structure. When the liquid level in the water storage groove 12 is not lower than the water-sealing structure, the water replenishment tank 180 is isolated from the outside atmosphere, and the water replenishment tank 18 stops supplying liquid to the water replenishment pipeline 15. Here, "not lower than the water-sealing structure" is understood to mean that the liquid surface is in contact with the water-sealing structure or submerged in the lower edge of the water-sealing structure.

[0074] Specifically, the water sealing structure 181 includes a circumferential enclosure 183, which is annular and surrounds the water inlet 180. When the water inlet tank 18 is connected to the water tank support 110, the lower edge of the circumferential enclosure 183 extends into the water storage groove 12. There is an air gap between the circumferential enclosure 183 and the inner wall of the water storage groove 12. Through this air gap, outside air can enter the interior of the water inlet tank 18 through the water inlet 180, thereby achieving air pressure balance inside the water inlet tank 18 and allowing the water inside the water inlet tank 18 to flow out. When the liquid level in the water storage groove 12 is lower than the circumferential enclosure 183, a pressure balance passage (hereinafter referred to as the air passage) is formed between the lower edge of the circumferential enclosure 183 and the liquid surface of the water storage groove 12, allowing airflow to enter the water replenishment tank 18. One end of this pressure balance passage is connected to the aforementioned ventilation gap, and the other end is connected to the water replenishment port 180. Thus, the pressure balance inside the water replenishment tank 18 is connected to the outside world. Water in the water replenishment tank 18 flows outward, and outside air can enter the interior of the water replenishment tank 18 through the air passage, achieving pressure balance in the water replenishment 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 replenishment tank 18 to the outside world is cut off, and the water replenishment port 180 is disconnected from the aforementioned ventilation gap. The water replenishment tank 18 cannot achieve internal pressure balance, thereby stopping the delivery of liquid to the water replenishment pipeline 15.

[0075] For further details, please see Figure 5 The water inlet 180 also includes a guide structure 185, which extends downward from the lower edge of the circumferential enclosure 183. Multiple guide structures 185 are provided, with adjacent guide structures spaced apart to form gaps for airflow. The guide structure 185 protrudes from the circumferential enclosure 183. During the docking process between the water tank 18 and the first water inlet port 13, the guide structure can first extend into the first water inlet port 13 to guide alignment and ensure reliable alignment of the first stop valve 16 and the second stop valve 182.

[0076] The second implementation scheme will be explained in detail below.

[0077] In practical implementation, the base station 100 also includes a liquid level detection sensor for detecting the water level in the water storage tank 12 and an electrically controlled valve for controlling the connection and disconnection between the water storage tank and the water source. The electrically controlled 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 L, the electrically controlled valve actuates to close the water source outlet pipe, and the water source stops replenishing water to the water storage tank 12. In other words, the electrically controlled valve closes in response to the liquid level detection sensor detecting that the water storage tank 12 has reached the upper limit L, and the water source stops replenishing water to the water storage tank.

[0078] Specifically, the water source can be a water supply tank or an external water source. When the water source is a water supply tank, the base station also includes a water outlet pipe connected to the water supply tank. An electrically controlled valve is installed on the water outlet pipe, and the outlet of the water outlet pipe is connected to the water storage groove. The on / off state of the water outlet pipe is controlled by the electrically controlled valve, thereby controlling the water supply tank to replenish water. When the water source is an external water source, the base station replenishes water to the surface cleaning equipment through an external water source. As an example, the base station 100 is connected to a (municipal) tap water supply through a water pipe, and the on / off state of the water pipe can be controlled to control the amount of water replenished to the water storage groove 12. By injecting water into the water storage operation 12 through tap water, a water supply source is provided, and the base station does not need to be equipped with a water storage container, resulting in a smaller size and lower cost.

[0079] The following details the water and air circuit structure of the interaction between the host water tank and the base station.

[0080] Please see Figure 8 and Figure 9 . Figure 8 A partial cross-sectional view of the host water tank in a docked state with the base station is shown in one embodiment. Figure 9 A partial cross-sectional view of the host water tank 22 in an embodiment, in a state not connected to the base station, is shown. The host water tank 22 includes a fourth stop valve 21 for opening and closing the water tank outlet. When the host water tank 22 is connected to the second water supply port 14, see [link to diagram]. Figure 8 As shown, the fourth stop valve 21 is in the open state, and the main unit's clean water tank 22 is connected to the second water supply port 14. When the main unit's clean water tank 22 is separated from the second water supply port 14, the fourth stop valve 21 automatically returns to the closed state.

[0081] Specifically, the fourth 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 seals the outlet of the clean water tank. The fourth seal 212 is mounted on the fourth valve stem 211, which passes through the outlet of the clean water tank. The fourth spring 213 is sleeved on the fourth valve stem 211, with one end abutting against the fourth valve stem 211 and the other end abutting against the fourth valve seat 214. The fourth spring 213 presses against the fourth valve stem 211, causing the fourth valve stem 211 to engage with the fourth seal 212 to seal the outlet of the clean water tank. When the fourth valve stem 211 is subjected to axial external force, it overcomes the elastic force of the fourth spring 213, compressing the fourth spring 213, and the fourth seal 212 opens the outlet of the clean water tank.

[0082] The main unit's clean water tank 22 is equipped with a ventilation structure 23 to balance the air pressure inside and outside the tank, ensuring smooth water replenishment. The ventilation structure 23 includes an opening / closing element 231, a ventilation spring 233, and a sealing ring 235. The opening / closing element 231 is pivotally mounted on the inner wall of the main unit's clean water tank 22 and includes a sealing end 2311 and a trigger end 2312 positioned opposite each other. The sealing ring 235 is located on the sealing end 2311 and seals the ventilation port 220. The trigger end 2312 is opposite the upper end of the fourth valve stem 211, with the side of the trigger end 2312 closest to the fourth valve stem 211 being the trigger side. A limiting post is located on the other side of the trigger end 2312 opposite to the trigger 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 unit's 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. The end of the fourth valve stem 211 can extend out of the through hole of the fourth valve seat 214.

[0083] When the main unit's clean water tank 22 is connected to the second water supply port 14, please refer to... Figure 8 The fourth and third stop valves 17 interact and both switch to the open state. The fourth valve stem 211 is in the open position, and the upper end of the fourth valve stem 211 presses against the trigger end 2312, causing the opening and closing element 231 to rotate. The trigger end 2312 compresses the air spring 233, and the sealing end 2311 rotates away from the air port 220, thereby opening the air port 220 and allowing the main unit's clean water tank 22 to communicate with the outside atmosphere. When the main unit's clean water tank 22 is separated from the second water supply port 14, please refer to... Figure 9 When the fourth valve stem 211 moves to the closed position, the fourth valve stem 211 releases the trigger end 2312 and disengages from the interaction with the trigger end 2312. Under the action of the air spring 233, the opening and closing part 231 rotates, and the sealing end 2311 rotates toward the air port 220, thereby sealing the air port 220 with the sealing ring 235.

[0084] For a specific embodiment, please refer to Figure 10The opening / closing element 231 is pivotally connected to the main unit's clean water tank 22 via a rotating shaft. The opening / closing element 231 includes a connecting shaft 2314, which is located in the middle of the opening / closing element 231, between the trigger end 2312 and the sealing end 2311. A shaft hole is provided on the inner wall of the main unit's clean water tank 22, and the connecting shaft 2314 is pivotally installed within the shaft hole. Specifically, the connecting shaft 2314 includes two coaxial shaft segments, located on both sides of the opening / closing element 231, meaning that both sides of the opening / closing element 231 are pivotally connected and positioned to the main unit's clean water tank 22. The opening / closing element 231 is installed on the inner wall of the main unit's clean water tank via the two shaft segments, ensuring smooth pivoting and preventing jamming.

[0085] Figure 11 Another ventilation structure is shown. Please see [link / reference]. Figure 11 As shown, the difference between the ventilation structure in this embodiment and the above embodiment is that the sealing end of the ventilation structure 23a provided in this embodiment is located on the outside. Specifically, the main unit's clean water tank 22a is provided with a ventilation port 220a. The ventilation structure 23a includes a straight rod-shaped opening and closing component, a ventilation spring 233a, and a sealing ring 235a. The opening and closing component is disposed through the ventilation port 220a. The ventilation structure 23a includes a trigger end 232a and a sealing end 231a. The sealing end 231a is located on the outside of the ventilation port 220a, the trigger end 232a is located on the inside of the ventilation port 220a, and the sealing ring 235a is disposed on the inside of the sealing end 231a near the ventilation port 220a. The ventilation spring 233a is sleeved on the opening and closing component, with one end abutting against the trigger end 232a and the other end abutting against the inner wall of the main unit's clean water tank 22.

[0086] The fourth stop valve 21a includes a fourth valve stem 211a, a fourth seal 212a, and a fourth spring 213a. The fourth valve stem 211a and the fourth valve seat 214a are also present. 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, with the end of the fourth valve stem 211a extending out of the through hole. When the main unit's clean water tank 22a is connected to the second water supply port 14, please refer to [link to relevant documentation]. Figure 11 The fourth stop valve 21a and the third 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 element 23a to move upward. The trigger end 232a compresses the air spring 233a, and the sealing end 231a moves outward relative to the air port 220a, thereby opening the air port 220 and connecting the main unit's clean water tank 22a with the outside atmosphere. When the main unit's clean water tank 22a separates from the second water supply port 14, the fourth valve stem 211a moves to the closed position, releases the trigger end 232a, and disengages from the interaction with the trigger end 232a. Under the action of the air spring 233a, the opening and closing element 231 moves into the main unit's clean water tank 22a, and the sealing end 231a moves toward the air port 220a, thereby sealing the air port 220 with the sealing ring 235a.

[0087] Since the surface cleaning equipment consumes clean water from the main unit's clean water tank during normal cleaning, in some embodiments, the main unit's clean water tank 22 also includes a duckbill valve to balance the air pressure within the tank during use. The duckbill valve is located on the top of the inner wall of the main unit's clean water tank 22. The duckbill valve has two flexible valve plates. In its natural state, the two flexible valve plates are close together. When the water in the tank is consumed, the internal air pressure decreases while the external air pressure is higher, causing the two valve plates to open, allowing external air to enter the main unit's clean water tank 22, thus enabling the main unit's clean water tank 22 to continuously supply cleaning water. When the internal pressure increases or the liquid level exceeds the duckbill valve, the water pressure causes the two duckbill valve plates to close more tightly, thereby preventing internal liquid or air from flowing out. The duckbill valve achieves internal and external pressure balance during the use of the main unit's clean water tank, ensuring the normal output of water from the tank.

[0088] Example 2

[0089] This application also provides a surface cleaning system, including a surface cleaning device and a surface cleaning device base station provided in any of the above embodiments. For details regarding the surface cleaning device, the surface cleaning device base station, and their cooperative structure, please refer to the descriptions in the above embodiments; further details will not be repeated here.

[0090] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the scope of protection of this application.

Claims

1. A surface cleaning equipment base station, characterized in that, include: Water supply tank, including water inlet; The base includes a water tank support that docks with the water supply tank; A water storage groove is provided on the water tank support; The first water supply port is located at the bottom of the water storage groove; The second water supply port is located on the base and is adapted to connect with the main water tank of the surface cleaning equipment. The water supply pipe is connected at one end to the first water supply port and at the other end to the second water supply port; The water replenishment tank is supported above the water tank support. The water inlet is inserted into the water storage groove and connects with the first water replenishment port. The water inlet, the first water replenishment port, the water replenishment pipeline and the second water replenishment port form a non-powered water replenishment channel. The water source in the water replenishment tank flows to the main unit's clean water tank under the action of gravity to replenish the main unit's clean water tank.

2. The base station as described in claim 1, characterized in that, The second water supply port is at a lower level than the first water supply port; when the surface cleaning device is connected to the base station, the main unit's clean water tank is at least partially located above the second water supply port.

3. The base station as described in claim 1, characterized in that, include: The water storage groove has an upper limit liquid level. When the liquid level in the water storage groove is lower than the upper limit liquid level, the liquid in the water replenishment tank flows from the water replenishment tank to the first water replenishment port under the action of gravity. When the liquid level in the water storage groove is higher than or equal to the upper limit liquid level, the water replenishment tank is isolated from the outside atmosphere, and the water replenishment tank stops supplying liquid to the first water replenishment port.

4. The base station according to claim 3, characterized in that, The water storage groove and the water inlet are matched to form a pressure balance passage. When the liquid level in the water storage groove is higher than or equal to the upper limit liquid level, the pressure balance passage is cut off, the water inlet tank is isolated from the outside atmosphere, and the water inlet tank stops supplying liquid to the first water inlet port.

5. The base station according to claim 4, characterized in that, The water inlet includes a circumferential enclosure, the lower edge of which extends into 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.

6. The base station according to claim 5, characterized in that, The water inlet also includes multiple guide structures, each of which extends downward from the lower edge of the circumferential enclosure, and the multiple guide structures are spaced apart to form at least part of the air pressure balance passage connecting the water tank and the outside.

7. The base station according to claim 3, characterized in that, When the surface cleaning device is connected to the base station, the upper limit liquid level of the water storage groove is level with the rated capacity liquid level of the host water tank.

8. The base station according to claim 1, characterized in that, The water replenishment tank is used to supply liquid to the water storage groove; the horizontal height of the water replenishment tank is at least partially higher than that of the water storage groove.

9. The base station according to claim 1, characterized in that, A first water stop valve is provided in the first water supply port. The first water stop valve is actuated to open when the water supply tank is installed and automatically closed when the water supply tank is removed. A third water stop valve is provided in the second water supply port. The third water stop valve is actuated to open when the surface cleaning equipment is stopped and automatically closed when the surface cleaning equipment is separated.

10. The base station according to claim 9, characterized in that, The water replenishment tank includes a second stop valve disposed at the water inlet. In the water replenishment state, the second stop valve and the first stop valve exert force on each other. Both the second stop valve and the first stop valve are in the open state. The water replenishment tank separates from the water tank support, the mutual force is released, and the first stop valve and the second stop valve automatically close.

11. A cleaning system, characterized in that, The device includes a surface cleaning device and a base station as described in any one of claims 1-10. The base includes a docking position for supporting and docking the surface cleaning device, and a second water supply port is disposed at the docking position. When the surface cleaning device is located at the docking position, the main water tank of the surface cleaning device is docked and connected to the second water supply port.

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