Liquid filling device, base station and cleaning equipment

Abstract

This invention provides a liquid filling device, a base station, and a cleaning device. The liquid filling device includes: a liquid filling housing, which includes a first cavity, a second cavity, and a third cavity. The first cavity is used to contain a first liquid, and the second cavity is used to contain a second liquid. The first cavity and the third cavity are connected through a first liquid inlet, and the second cavity and the third cavity are connected through a second liquid inlet; a stop valve, which is adjustable in position to have a closed position that simultaneously closes the first liquid inlet and the second liquid inlet, and an open position that simultaneously opens the first liquid inlet and the second liquid inlet. When the stop valve is in the open position, the liquid in the first cavity and the liquid in the second cavity enter the third cavity through the first liquid inlet and the second liquid inlet, respectively, to mix and form a cleaning liquid. The liquid filling device of this invention solves the problem of high operating noise caused by the use of a water pump to draw cleaning liquid in existing base stations.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more specifically, to a liquid filling device, a base station, and a cleaning device. Background Technology

[0002] A robotic vacuum cleaner, also known as an automatic cleaning robot, smart vacuum cleaner, or robotic vacuum cleaner, is a type of smart home appliance that uses artificial intelligence to automatically clean floors in a room. It typically uses a combination of brushing and vacuuming to collect debris into its dustbin, thus completing the cleaning process. Generally, robots that perform sweeping, vacuuming, and mopping are all categorized as robotic vacuum cleaners.

[0003] Currently, most base stations use water pumps to draw cleaning fluid from the cleaning fluid pipes into the base station's mixing chamber to mix with water, and then send the mixed liquid into the cleaning robot, thus enabling the cleaning robot to automatically add cleaning fluid.

[0004] However, water pumps generate significant noise during operation, which affects the user experience. Summary of the Invention

[0005] The main objective of this invention is to provide a liquid adding device, a base station, and a cleaning equipment to solve the problem of high operating noise caused by the use of water pumps to extract cleaning liquid in existing base stations.

[0006] To achieve the above objectives, according to a first aspect of the present invention, a liquid filling device is provided, comprising: a liquid filling housing, the liquid filling housing including a first cavity, a second cavity, and a third cavity communicating with an inlet of a cleaning robot, the first cavity for containing a first liquid, the second cavity for containing a second liquid, the first cavity and the third cavity being connected through a first inlet, and the second cavity and the third cavity being connected through a second inlet; and a stop valve, the stop valve being adjustablely configured to have a closed position that simultaneously closes the first inlet and the second inlet and an open position that simultaneously opens the first inlet and the second inlet, such that when the stop valve is in the open position, the liquid in the first cavity and the liquid in the second cavity respectively enter the third cavity through the first inlet and the second inlet to mix and form a cleaning liquid, and the mixed cleaning liquid enters the cleaning robot.

[0007] Furthermore, the stop valve includes a first valve block and a second valve block, which are respectively adapted to the first liquid inlet and the second liquid inlet, so that when the stop valve is in the closed position, the first liquid inlet is blocked by the first valve block and the second liquid inlet is blocked by the second valve block; when the stop valve is in the open position, the first valve block separates from the first liquid inlet to open the first liquid inlet, and the second valve block separates from the second liquid inlet to open the second liquid inlet.

[0008] Furthermore, the first valve block is positioned above the first liquid inlet, and the first cavity is used to continuously introduce the first liquid so that the pressure inside the first cavity gradually increases until it pushes the first valve block open, thereby opening the first liquid inlet.

[0009] Furthermore, the first inlet is located above the third cavity so that when the stop valve opens the first inlet, the first liquid enters the third cavity under the action of gravity.

[0010] Furthermore, the stop valve also includes: a connecting part, which includes a first connecting section and a second connecting section connected in sequence and arranged at an angle; a first valve block and a second valve block, wherein the first valve block is disposed on the first connecting section and the second valve block is disposed on the second connecting section, so that the first valve block and the second valve block move synchronously.

[0011] Furthermore, the first valve block is disposed at the first end of the first connecting section, and the second end of the first connecting section is connected to the first end of the second connecting section; and / or, the stop valve further includes an elastic part, which is connected to the first connecting section or the second connecting section, so that the stop valve can be restored from the open position to the closed position by the elastic force of the elastic part.

[0012] Furthermore, the stop valve also includes: a third valve block, the liquid filling housing having a third liquid inlet for communicating with the second cavity, the third valve block being adapted to the third liquid inlet, and the third valve block being disposed on the second connecting section so as to drive the third valve block to open or close the third liquid inlet when the stop valve moves.

[0013] Furthermore, the liquid adding device also includes: a first liquid inlet head, the second cavity being connected to the first end of the first liquid inlet head through a third liquid inlet, and the second end of the first liquid inlet head being connected to a liquid storage cavity containing a second liquid, so that the second liquid flows into the second cavity sequentially through the liquid storage cavity, the first liquid inlet head and the third liquid inlet; wherein, the bottom of the liquid storage cavity is set higher than the top of the second cavity.

[0014] Furthermore, the stop valve also includes an elastic part. A first fixed protrusion is provided on the inner wall of the third cavity. The elastic part is a torsion spring. The elastic part is sleeved on the first fixed protrusion. One torsion wall of the elastic part is connected to the stop valve so that the stop valve is maintained in the closed position under the elastic action of the elastic part.

[0015] Furthermore, the volume of the third cavity is greater than or equal to the volume of the second cavity, so that all the second liquid in the second cavity enters the third cavity; and / or, the top of the second cavity is provided with an exhaust port, and the exhaust port is provided with a waterproof and breathable membrane for sealing the liquid and allowing gas to pass through.

[0016] According to a second aspect of the present invention, a base station is provided, comprising the liquid dispensing device described above.

[0017] According to a third aspect of the present invention, a cleaning device is provided, including a sweeping robot and a base station, wherein the base station is the aforementioned base station.

[0018] According to the technical solution of this invention, the liquid adding device includes a liquid adding shell, which includes a first cavity, a second cavity, a third cavity, and a stop valve. The first cavity is used to contain a first liquid, the second cavity is used to contain a second liquid, the first cavity and the third cavity are connected through a first inlet, and the second cavity and the third cavity are connected through a second inlet. When cleaning fluid needs to be added to the cleaning robot, the stop valve switches to the open position, and the first inlet and the second inlet are opened simultaneously, so that the first liquid in the first cavity and the second liquid in the second cavity enter the third cavity through the first inlet and the second inlet respectively to mix and form cleaning fluid. The cleaning fluid enters the cleaning robot from the inlet to complete the liquid adding. After the liquid adding is completed, the stop valve switches to the closed position, and the first inlet and the second inlet are closed. The adjustable stop valve allows the second liquid in the second chamber to automatically flow into the third chamber and mix with the first liquid to form a cleaning solution. This eliminates the need for a water pump to draw the second liquid from the second chamber into the third chamber, avoiding the high noise level of the liquid adding device that affects the user experience. This solves the problem of high noise levels caused by the water pump used to draw cleaning solution in existing base stations. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of the liquid dispensing housing of the liquid dispensing device according to the present invention is shown;

[0021] Figure 2 A schematic diagram of the stop valve component of the liquid dispensing device according to the present invention is shown;

[0022] Figure 3 A schematic diagram of the liquid filling device (with the stop valve in the closed position) according to the present invention is shown, comprising the liquid filling housing, the liquid storage chamber, and the liquid outlet pipe.

[0023] Figure 4 A schematic diagram of the liquid filling device according to the present invention (with the stop valve in the open position), including the liquid filling housing, the liquid storage chamber, and the liquid outlet pipe, is shown.

[0024] Figure 5 A schematic diagram of the structure of the liquid filling housing of the liquid filling device according to the present invention (with the stop valve in the open position) is shown;

[0025] Figure 6 A schematic diagram of the liquid filling housing of the liquid filling device (with the stop valve in the closed position) according to the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 10. Liquid filling housing; 11. First cavity; 12. Second cavity; 13. Third cavity; 133. First fixing protrusion; 14. First liquid inlet; 15. Second liquid inlet; 16. Third liquid inlet; 17. Exhaust port; 20. Stop valve; 211. First valve block; 212. Second valve block; 213. Third valve block; 25. Elastic part; 30. Connecting part; 31. First connecting section; 32. Second connecting section; 40. First liquid inlet pipe head; 60. Liquid storage cavity; 61. First liquid inlet pipe; 70. Liquid outlet pipe; 71. Liquid outlet. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] This invention provides a liquid dispensing device; please refer to [reference needed]. Figures 1 to 6The system includes: a liquid filling housing 10, which includes a first cavity 11, a second cavity 12, and a third cavity 13 connected to the inlet of the cleaning robot. The first cavity 11 is used to contain a first liquid, and the second cavity 12 is used to contain a second liquid. The first cavity 11 and the third cavity 13 are connected through a first liquid inlet 14, and the second cavity 12 and the third cavity 13 are connected through a second liquid inlet 15. A stop valve 20 is adjustablely configured to have a closed position that simultaneously closes the first liquid inlet 14 and the second liquid inlet 15, and an open position that simultaneously opens the first liquid inlet 14 and the second liquid inlet 15. When the stop valve 20 is in the open position, the liquid in the first cavity 11 and the liquid in the second cavity 12 enter the third cavity 13 through the first liquid inlet 14 and the second liquid inlet 15 respectively to mix and form a cleaning liquid, and the mixed cleaning liquid enters the cleaning robot.

[0032] The liquid filling device of the present invention includes a liquid filling housing 10, which includes a first cavity 11, a second cavity 12, a third cavity 13, and a stop valve 20. The first cavity 11 is used to contain a first liquid, the second cavity 12 is used to contain a second liquid, the first cavity 11 and the third cavity 13 are connected by a first inlet 14, and the second cavity 12 and the third cavity 13 are connected by a second inlet 15. When cleaning fluid needs to be added to the cleaning robot, the stop valve 20 is switched to the open position, and the first inlet 14 and the second inlet 15 are opened simultaneously, so that the first liquid in the first cavity 11 and the second liquid in the second cavity 12 enter the third cavity 13 through the first inlet 14 and the second inlet 15 respectively to mix and form cleaning fluid. The cleaning fluid enters the cleaning robot from the inlet to complete the liquid filling. After the liquid filling is completed, the stop valve 20 is switched to the closed position, and the first inlet 14 and the second inlet 15 are closed. The adjustable stop valve 20 enables the second liquid in the second chamber 12 to automatically flow into the third chamber 13 to mix with the first liquid and form a cleaning liquid. This eliminates the need to pump the second liquid in the second chamber 12 into the third chamber 13, avoiding the high operating noise of the liquid adding device that affects the user experience. This solves the problem of high operating noise caused by the existing base station pumping the cleaning liquid.

[0033] Furthermore, the high cost of water pumps increases the production cost of base stations. The industry standard design involves cutting the cleaning fluid pipe in the middle and adding a separate pump body at that point. However, the pump's dispensing method increases the pressure inside the cleaning fluid pipe, requiring adhesive or cable ties to securely fasten the connection between the pipe and the pump body. This increases installation time and costs, consequently raising the base station's production cost. Therefore, the liquid dispensing device of this application eliminates the need for a water pump and thus the need for adhesive or cable ties on the cleaning fluid pipe, thereby reducing base station production costs and improving assembly efficiency.

[0034] Specifically, the first liquid is water, the second liquid is concentrated cleaning solution, and the liquid dispensing device is formed by ultrasonic welding; for example... Figure 3 and Figure 4 As shown, the liquid adding device also includes a liquid outlet pipe 70, the two ends of which are connected to the inlet of the cleaning robot and the outlet 71 of the third cavity 13, respectively, so that the cleaning liquid flows through the outlet 71, the liquid outlet pipe 70 and the inlet of the cleaning robot in sequence to enter the cleaning robot to complete the liquid adding.

[0035] In this embodiment, as Figure 2 As shown, the stop valve 20 includes a first valve block 211 and a second valve block 212. The first valve block 211 and the second valve block 212 are respectively adapted to the first liquid inlet 14 and the second liquid inlet 15. When the stop valve 20 is in the closed position, the first liquid inlet 14 is blocked by the first valve block 211 and the second liquid inlet 15 is blocked by the second valve block 212. When the stop valve 20 is in the open position, the first valve block 211 separates from the first liquid inlet 14 to open the first liquid inlet 14, and the second valve block 212 separates from the second liquid inlet 15 to open the second liquid inlet 15.

[0036] Specifically, the first valve block 211 and the second valve block 212 are used to block or open the first liquid inlet 14 and the second liquid inlet 15, respectively. When the stop valve 20 is in the closed position, the first valve block 211 blocks the first liquid inlet 14, and the second valve block 212 blocks the second liquid inlet 15; when the stop valve 20 is in the open position, the first valve block 211 separates from the first liquid inlet 14 to open the first liquid inlet 14, and the second valve block 212 separates from the second liquid inlet 15 to open the second liquid inlet 15, so that the first liquid inlet 14 and the second liquid inlet 15 are opened simultaneously, so that the first liquid in the first cavity 11 and the second liquid in the second cavity 12 enter the third cavity 13 through the first liquid inlet 14 and the second liquid inlet 15, respectively, to mix and form a cleaning liquid.

[0037] Specifically, a sealing element is provided between the first valve block 211 and the first liquid inlet 14, and a sealing element is provided between the second valve block 212 and the second liquid inlet 15, thereby ensuring that when the stop valve 20 is in the closed position, the first valve block 211 is sealed to the first liquid inlet 14, and the second valve block 212 is sealed to the second liquid inlet 15, preventing the first liquid or the second liquid from entering the third cavity 13.

[0038] In this embodiment, as Figure 5 and Figure 6 As shown, the first valve block 211 is disposed above the first liquid inlet 14, and the first cavity 11 is used to continuously introduce the first liquid so that the pressure in the first cavity 11 gradually increases until the first valve block 211 is pushed open, so that the first valve block 211 opens the first liquid inlet 14.

[0039] Specifically, the liquid adding device also includes a clean water tank, a water pump, and a second inlet pipe, which are positioned above the first cavity 11. The clean water tank is used to contain the first liquid; both ends of the water pump are connected to the first ends of the clean water tank and the second inlet pipe, respectively, and the second end of the second inlet pipe is connected to the first cavity 11. The water pump draws the first liquid from the clean water tank into the second inlet pipe, and then into the first cavity 11 through the second inlet pipe.

[0040] Specifically, the first liquid inlet 14 is located below the third cavity 13. When the cleaning robot is started to add liquid, the water pump is started to draw the first liquid, so that the first liquid continuously enters the first cavity 11 through the second liquid inlet pipe. The first liquid continuously flows into the first cavity 11, causing the pressure in the first cavity 11 to gradually increase. Then the first liquid pushes the first valve block 211 upward, causing the first valve block 211 to move to separate from the first liquid inlet 14. The first liquid inlet 14 is opened, and the first liquid in the first cavity 11 flows into the third cavity 13. When the liquid addition stops, the water pump is turned off, the first liquid in the clean water tank stops entering the first cavity 11, and the pressure in the first cavity 11 gradually decreases until the first valve block 211 re-seals the first liquid inlet 14.

[0041] In another embodiment, not shown in the figure, the first inlet 14 is located above the third cavity 13 so that when the stop valve 20 opens the first inlet 14, the first liquid enters the third cavity 13 under the action of gravity.

[0042] Specifically, the first liquid inlet 14 is located above the third cavity 13. When the cleaning robot starts to add liquid, the first liquid in the clean water tank is pressurized, so that the first liquid enters the first cavity 11 through the second liquid inlet pipe. The first liquid in the first cavity 11 pushes the first valve block 211 downward, and the first valve block 211 moves to open the first liquid inlet 14. Then the pressurization of the first liquid in the clean water tank is stopped, so that the first liquid flows through the second liquid inlet pipe and the first cavity 11 in sequence under the action of gravity and enters the third cavity 13.

[0043] In this embodiment, as Figure 2 As shown, the stop valve 20 further includes: a connecting part 30, which includes a first connecting section 31 and a second connecting section 32 connected in sequence and arranged at an angle; a first valve block 211 and a second valve block 212, wherein the first valve block 211 is disposed on the first connecting section 31 and the second valve block 212 is disposed on the second connecting section 32, so that the first valve block 211 and the second valve block 212 move synchronously.

[0044] Specifically, the connecting part 30 is used to connect the first valve block 211 and the second valve block 212 so that when the stop valve 20 is in the closed or open position, the second valve block 212 can simultaneously block or open the second inlet 15 when the first valve block 211 blocks or opens the first liquid inlet 14. This ensures that when the stop valve 20 is in the closed or open position, the first liquid inlet 14 and the second liquid inlet 15 are simultaneously closed or opened, thereby ensuring that the first liquid and the second liquid can simultaneously enter the third cavity 13 to mix and form a cleaning liquid.

[0045] In specific implementation, the first valve block 211 moves to separate from the first liquid inlet 14 and opens the first liquid inlet 14. The first valve block 211 drives the first connecting section 31 to move. The first connecting section 31 drives the second connecting section 32 to move. The second connecting section 32 drives the second valve block 212 to move to separate from the second liquid inlet 15 and open the second liquid inlet 15.

[0046] In this embodiment, as Figure 2 As shown, the first valve block 211 is disposed at the first end of the first connecting section 31, and the second end of the first connecting section 31 is connected to the first end of the second connecting section 32; and / or, the stop valve 20 further includes an elastic part 25, which is connected to the first connecting section 31 or the second connecting section 32, so that the stop valve 20 can be restored from the open position to the closed position by the elastic force of the elastic part 25.

[0047] Specifically, the first valve block 211 is disposed at the first end of the first connecting section 31, the second end of the first connecting section 31 is connected to the first end of the second connecting section 32, and the first connecting section 31 and the second connecting section 32 are disposed at a 90° angle.

[0048] Specifically, when the elastic part 25 is connected to the first connecting section 31, the first liquid squeezes the first valve block 211, causing the first valve block 211 to overcome the elastic force of the elastic part 25, and drive the first connecting section 31, the second connecting section 32, and the second valve block 212 to rotate clockwise (10-30 degrees) with the elastic part 25 as the center point. The movement of the first connecting section 31 causes the elastic part 25 to undergo elastic deformation, and the elastic part 25 is filled with elastic force. When the first liquid stops squeezing the first valve block 211, the first valve block 211, the first connecting section 31, the second connecting section 32, and the second valve block 212 stop moving, the elastic part 25 resets, and drives the first connecting section 31 to move. The first connecting section 31 drives the first valve block 211 to move to block the first liquid inlet 14, and the first connecting section 31 drives the second connecting section 32 and the second valve block 212 to move to block the second liquid inlet 15.

[0049] Specifically, when the elastic part 25 is connected to the second connecting section 32, the first liquid squeezes the first valve block 211, causing the first valve block 211 to move the first connecting section 31. The first connecting section 31 then moves the second connecting section 32 and the second valve block 212. The movement of the second connecting section 32 causes the elastic part 25 to undergo elastic deformation, filling the elastic part 25 with elastic force. When the first liquid stops squeezing the first valve block 211, the first valve block 211, the first connecting section 31, the second connecting section 32, and the second valve block 212 stop moving. The elastic part 25 resets, causing the second connecting section 32 to move. The second connecting section 32 then moves the second valve block 212 to block the second liquid inlet 15. The second connecting section 32 then moves the first connecting section 31 and the first valve block 211 to block the first liquid inlet 14.

[0050] In this embodiment, as Figure 5 and Figure 6 As shown, the stop valve 20 also includes a third valve block 213. The liquid filling housing 10 has a third liquid inlet 16 for communicating with the second cavity 12. The third valve block 213 is adapted to the third liquid inlet 16. The third valve block 213 is disposed on the second connecting section 32 so that when the stop valve 20 moves, it drives the third valve block 213 to open or close the third liquid inlet 16.

[0051] Specifically, when the stop valve 20 is in the open position, the second connecting section 32 drives the third valve block 213 to move to the third valve block 213 to block the third liquid inlet 16; when the stop valve 20 is in the closed position, the first valve block 211 drives the first connecting section 31 to move, the first connecting section 31 drives the second connecting section 32 to move, the second connecting section 32 drives the third valve block 213 to move to the third valve block 213 to open the third liquid inlet 16, and the second liquid refills the second cavity 12.

[0052] In this embodiment, as Figure 6 As shown, the liquid adding device further includes: a first liquid inlet head 40, the second cavity 12 is connected to the first end of the first liquid inlet head 40 through a third liquid inlet 16, and the second end of the first liquid inlet head 40 is used to connect to a liquid storage cavity containing a second liquid, so that the second liquid flows into the second cavity 12 sequentially through the liquid storage cavity 60, the first liquid inlet head 40 and the third liquid inlet 16; wherein, the bottom of the liquid storage cavity 60 is set higher than the top of the second cavity 12.

[0053] Specifically, the liquid adding device also includes a first inlet pipe 61. The second cavity 12 is connected to the first end of the first inlet pipe head 40 through a third inlet port 16. The second end of the first inlet pipe head 40 is used to connect with the first end of the first inlet pipe 61. The second end of the first inlet pipe 61 is connected to the storage cavity 60 containing the second liquid. When the stop valve 20 is in the closed position, the third valve block 213 opens the third inlet port 16. The second liquid flows into the second cavity 12 sequentially through the storage cavity 60, the first inlet pipe head 40, the first inlet pipe 61, and the third inlet port 16 until the second liquid fills the second cavity 12. When the stop valve 20 is in the open position, the third valve block 213 closes the third inlet port 16, and the second cavity 12 is no longer connected to the storage cavity 60, thereby ensuring that the flow rate of the second liquid flowing into the third cavity 13 is fixed and avoiding affecting the mixing ratio of the first liquid and the second liquid in the cleaning solution.

[0054] Specifically, the bottom of the liquid storage chamber 60 is set higher than the top of the second chamber 12, which can prevent the second liquid from flowing back into the liquid storage chamber 60 when the second chamber 12 is full of the second liquid, and at the same time help the second liquid in the liquid storage chamber 60 to flow into the second chamber 12 under the action of gravity.

[0055] In practice, since the first and second liquids discharged have fixed volumes, the cleaning solution is a cleaning solution with a fixed mixing ratio, which can be adjusted by calculating and adjusting the volume of the second chamber 12.

[0056] In this embodiment, as Figure 1 , Figure 5 and Figure 6 As shown, the stop valve 20 also includes an elastic part 25. A first fixed protrusion 133 is provided on the inner wall of the third cavity 13. The elastic part 25 is a torsion spring. The elastic part 25 is sleeved on the first fixed protrusion 133. One torsion wall of the elastic part 25 is connected to the stop valve 20 so that the stop valve 20 is maintained in the closed position under the elastic action of the elastic part 25.

[0057] Specifically, by fitting the elastic part 25 onto the first fixed protrusion 133, and connecting the other torsional wall of the elastic part 25 to the bottom of the first fixed protrusion 133, the elastic part 25 is connected to the third cavity 13; by connecting one torsional wall of the elastic part 25 to the stop valve 20, the elastic force of the elastic part 25 can restore the stop valve 20 from the open position to the closed position.

[0058] Optionally, the stop valve 20 may further include a spring arm, which is disposed on the first connecting section 31 or the second connecting section 32, wherein the spring arm and the stop valve 20 are integrally injection molded.

[0059] In this embodiment, as Figure 1 As shown, the volume of the third cavity 13 is greater than or equal to the volume of the second cavity 12, so that all the second liquid in the second cavity 12 enters the third cavity 13; and / or, the top of the second cavity 12 is provided with an exhaust port 17, and the exhaust port 17 is provided with a waterproof and breathable membrane for sealing the liquid and allowing the gas to pass through.

[0060] Specifically, before adding liquid to the cleaning robot, the third chamber 13 is filled with air. When adding liquid to the cleaning robot begins, the first liquid compresses the first valve block 211, causing the first valve block 211 to move the first connecting section 31, the second connecting section 32, and the second valve block 212. This opens the first liquid inlet 14 and the second liquid inlet 15, allowing the first liquid to enter the third chamber 13. The air in the third chamber 13 is forced into the second chamber 12 by the first liquid through the second liquid inlet 15. Then, the air entering the second chamber 12 compresses the second liquid, causing the second liquid in the second chamber 12 to flow into the third chamber 13 through the second liquid inlet 15. When the volume of the third chamber 13 is greater than the volume of the second chamber 12, it ensures that the volume of air forced into the second chamber 12 is greater than the volume of the second chamber 12. This ensures that all the second liquid in the second chamber 12 can enter the third chamber 13, preventing insufficient flow of the second liquid into the third chamber 13, which would affect the mixing ratio of the first and second liquids in the cleaning solution.

[0061] In practice, the volume of the third chamber 13 is one or several times that of the second chamber 12. Whenever the low-liquidity detection device (an essential device in the industry, used to remind users to add clean water to the clean water tank, which typically has a volume of 4-5L, and adding water to the robot consumes several hundred milliliters of clean water, so users need to add clean water to the base station once every 1 to 2 weeks) in the first chamber 11 detects that the first chamber 11 is low on water and needs to be refilled, the controller will control the water pump to work for a few more seconds. During these few seconds, due to the lack of water, the water pump will send the first air inlet 14 into the third chamber 13, so that the residual cleaning liquid in the third chamber 13 is continuously discharged until only air remains in the third chamber 13. This ensures that the mixture in the third chamber 13 is completely emptied, so that the third chamber 13 is filled with air instead of leaving liquid. This gas is consumed when the cleaning liquid is added next time, and the volume of gas consumed in the third chamber 13 each time is equal to the volume of the second chamber 12.

[0062] Specifically, the top of the second cavity 12 is provided with an exhaust port 17, and the exhaust port 17 is provided with a waterproof and breathable membrane for sealing liquid and allowing gas to pass through. When the volume of air squeezed into the second cavity 12 is greater than the volume of the second cavity 12, the excess air is discharged to the outside through the exhaust port 17, so as to avoid the second cavity 12 from rupturing due to excessive air.

[0063] Specifically, the exhaust port 17 is provided with a waterproof and breathable membrane for sealing the liquid and allowing the gas to pass through. This ensures that the second liquid in the second chamber 12 is prevented from overflowing from the exhaust port 17 without affecting the air discharge, which would result in insufficient flow of the second liquid into the third chamber 13 and thus affect the mixing ratio of the first liquid and the second liquid in the cleaning solution.

[0064] Specifically, waterproof and breathable membranes (breathable paper) are a new type of polymer waterproof material. From a manufacturing perspective, the technical requirements for waterproof and breathable membranes are much higher than those for ordinary waterproof materials; simultaneously, in terms of quality, waterproof and breathable membranes also possess functional characteristics not found in other waterproof materials. The working principle of a waterproof and breathable membrane is as follows: In the state of water vapor, water particles are extremely small. According to the principle of capillary motion, they can easily permeate to the other side of the capillary, thus causing vapor permeation. When water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the mutual "pulling and resistance" between water molecules), the water molecules cannot easily detach from the water droplets and permeate to the other side, thus preventing water penetration and giving the breathable membrane its waterproof function.

[0065] The present invention also provides a base station, including the liquid adding device in the above embodiments.

[0066] The base station of the present invention includes the liquid filling device in the above embodiments. The liquid filling device includes a liquid filling housing 10, which includes a first cavity 11, a second cavity 12, a third cavity 13, and a stop valve 20. The first cavity 11 is used to contain a first liquid, and the second cavity 12 is used to contain a second liquid. The first cavity 11 and the third cavity 13 are connected by a first inlet 14, and the second cavity 12 and the third cavity 13 are connected by a second inlet 15. When cleaning fluid needs to be added to the cleaning robot, the stop valve 20 switches to the open position, and the first inlet 14 and the second inlet 15 are opened simultaneously, so that the first liquid in the first cavity 11 and the second liquid in the second cavity 12 enter the third cavity 13 through the first inlet 14 and the second inlet 15 respectively to mix and form cleaning fluid. The cleaning fluid enters the cleaning robot from the inlet to complete the liquid filling. After the liquid filling is completed, the stop valve 20 switches to the closed position, and the first inlet 14 and the second inlet 15 are closed. The adjustable stop valve 20 enables the second liquid in the second chamber 12 to automatically flow into the third chamber 13 to mix with the first liquid and form a cleaning liquid. This eliminates the need to pump the second liquid in the second chamber 12 into the third chamber 13, avoiding the high operating noise of the liquid adding device that affects the user experience. This solves the problem of high operating noise caused by the existing base station pumping the cleaning liquid.

[0067] The present invention also provides a cleaning device, including a sweeping robot and a base station, wherein the base station is the base station in the above embodiments.

[0068] The cleaning device of the present invention includes a sweeping robot and a base station in the above embodiments. The base station includes a liquid filling device in the above embodiments. The liquid filling device includes a liquid filling housing 10. The liquid filling housing 10 includes a first cavity 11, a second cavity 12, a third cavity 13 and a stop valve 20. The first cavity 11 is used to contain a first liquid, the second cavity 12 is used to contain a second liquid, the first cavity 11 and the third cavity 13 are connected by a first liquid inlet 14, and the second cavity 12 and the third cavity 13 are connected by a second liquid inlet 15. When cleaning fluid needs to be added to the cleaning robot, the stop valve 20 switches to the open position, and the first inlet 14 and the second inlet 15 are opened simultaneously. This allows the first liquid in the first chamber 11 and the second liquid in the second chamber 12 to enter the third chamber 13 through the first inlet 14 and the second inlet 15, respectively, to mix and form cleaning fluid. The cleaning fluid enters the cleaning robot from its inlet to complete the addition. After the addition is complete, the stop valve 20 switches to the closed position, and the first inlet 14 and the second inlet 15 are closed. The adjustable stop valve 20 enables the second liquid in the second chamber 12 to automatically flow into the third chamber 13 to mix with the first liquid and form cleaning fluid. This eliminates the need for a water pump to draw the second liquid from the second chamber 12 into the third chamber 13, avoiding the high operating noise of the adding device that affects the user experience. This solves the problem of high operating noise caused by the water pump used to draw cleaning fluid in existing base stations.

[0069] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0070] The liquid filling device of the present invention includes a liquid filling housing 10, which includes a first cavity 11, a second cavity 12, a third cavity 13, and a stop valve 20. The first cavity 11 is used to contain a first liquid, the second cavity 12 is used to contain a second liquid, the first cavity 11 and the third cavity 13 are connected by a first inlet 14, and the second cavity 12 and the third cavity 13 are connected by a second inlet 15. When cleaning fluid needs to be added to the cleaning robot, the stop valve 20 is switched to the open position, and the first inlet 14 and the second inlet 15 are opened simultaneously, so that the first liquid in the first cavity 11 and the second liquid in the second cavity 12 enter the third cavity 13 through the first inlet 14 and the second inlet 15 respectively to mix and form cleaning fluid. The cleaning fluid enters the cleaning robot from the inlet to complete the liquid filling. After the liquid filling is completed, the stop valve 20 is switched to the closed position, and the first inlet 14 and the second inlet 15 are closed. The adjustable stop valve 20 enables the second liquid in the second chamber 12 to automatically flow into the third chamber 13 to mix with the first liquid and form a cleaning liquid. This eliminates the need to pump the second liquid in the second chamber 12 into the third chamber 13, avoiding the high operating noise of the liquid adding device that affects the user experience. This solves the problem of high operating noise caused by the existing base station pumping the cleaning liquid.

[0071] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0072] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A liquid dispensing device, characterized in that, include: The liquid filling housing (10) includes a first cavity (11), a second cavity (12), and a third cavity (13) connected to the inlet of the cleaning robot. The first cavity (11) is used to contain a first liquid, the second cavity (12) is used to contain a second liquid, the first cavity (11) and the third cavity (13) are connected through a first liquid inlet (14), and the second cavity (12) and the third cavity (13) are connected through a second liquid inlet (15). A stop valve (20) is adjustable in position to have a closed position that simultaneously closes the first liquid inlet (14) and the second liquid inlet (15) and an open position that simultaneously opens the first liquid inlet (14) and the second liquid inlet (15). When the stop valve (20) is in the open position, the liquid in the first cavity (11) and the liquid in the second cavity (12) enter the third cavity (13) through the first liquid inlet (14) and the second liquid inlet (15) respectively to mix and form a cleaning liquid, and the mixed cleaning liquid enters the cleaning robot. The stop valve (20) also includes: The connecting part (30) includes a first connecting section (31) and a second connecting section (32) that are connected in sequence and arranged at an angle. A first valve block (211) and a second valve block (212), wherein the first valve block (211) is disposed on the first connecting section (31) and the second valve block (212) is disposed on the second connecting section (32) so that the first valve block (211) and the second valve block (212) move synchronously; The first valve block (211) is disposed at the first end of the first connecting section (31), and the second end of the first connecting section (31) is connected to the first end of the second connecting section (32); and / or The stop valve (20) further includes an elastic part (25), which is connected to the first connecting section (31) or the second connecting section (32) so that the stop valve (20) can be restored from the open position to the closed position by the elastic force of the elastic part (25).

2. The liquid addition device according to claim 1, characterized in that, The first valve block (211) and the second valve block (212) are respectively adapted to the first liquid inlet (14) and the second liquid inlet (15) so that when the stop valve (20) is in the closed position, the first liquid inlet (14) is blocked by the first valve block (211) and the second liquid inlet (15) is blocked by the second valve block (212); when the stop valve (20) is in the open position, the first valve block (211) separates from the first liquid inlet (14) to open the first liquid inlet (14), and the second valve block (212) separates from the second liquid inlet (15) to open the second liquid inlet (15).

3. The liquid addition device according to claim 2, characterized in that, The first valve block (211) is positioned above the first liquid inlet (14), and the first cavity (11) is used to continuously introduce the first liquid so that the pressure in the first cavity (11) gradually increases until the first valve block (211) is pushed open so that the first valve block (211) opens the first liquid inlet (14).

4. The liquid addition device according to claim 1, characterized in that, The first liquid inlet (14) is located above the third cavity (13) so that when the stop valve (20) opens the first liquid inlet (14), the first liquid enters the third cavity (13) under the action of gravity.

5. The liquid addition device according to claim 1, characterized in that, The stop valve (20) also includes: The third valve block (213) is adapted to the third inlet (16) of the liquid filling housing (10) for communicating with the second cavity (12). The third valve block (213) is disposed on the second connecting section (32) so as to drive the third valve block (213) to open or close the third inlet (16) when the stop valve (20) moves.

6. The liquid addition device according to claim 5, characterized in that, The liquid addition device also includes: The first liquid inlet head (40) and the second cavity (12) are connected to the first end of the first liquid inlet head (40) through the third liquid inlet (16). The second end of the first liquid inlet head (40) is used to connect to the storage cavity containing the second liquid, so that the second liquid flows into the second cavity (12) in sequence through the storage cavity, the first liquid inlet head (40) and the third liquid inlet (16); wherein, the bottom of the storage cavity is set higher than the top of the second cavity (12).

7. The liquid addition device according to claim 1, characterized in that, The stop valve (20) also includes an elastic part (25). A first fixed protrusion (133) is provided on the inner wall of the third cavity (13). The elastic part (25) is a torsion spring. The elastic part (25) is sleeved on the first fixed protrusion (133). One torsion wall of the elastic part (25) is connected to the stop valve (20) so that the stop valve (20) is maintained in the closed position under the elastic action of the elastic part (25).

8. The liquid addition device according to any one of claims 1 to 5, characterized in that, The volume of the third cavity (13) is greater than or equal to the volume of the second cavity (12), so that all the second liquid in the second cavity (12) enters the third cavity (13); and / or The top of the second cavity (12) is provided with an exhaust port (17), and the exhaust port (17) is provided with a waterproof and breathable membrane for sealing liquid and allowing gas to pass through.

9. A base station, characterized in that, The liquid dispensing device includes any one of claims 1 to 8.

10. A cleaning device, comprising a sweeping robot and a base station, characterized in that, The base station is the base station as described in claim 9.

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