Cleaning device fluid storage tank, automatic cleaning device, and cleaning base station

Abstract

This utility certificate discloses a cleaning device's liquid storage tank, an automatic cleaning device, and a cleaning base station. It relates to the technical field of cleaning devices and primarily aims to prevent cleaning fluid from being discharged through an overflow orifice when the cleaning fluid is injected into the liquid storage tank, thus ensuring normal replenishment of the liquid storage tank. The main technical solution described in this utility certificate is as follows.The liquid storage tank of the cleaning device comprises: a tank body including a receiving cavity, and a liquid inlet, a liquid outlet and an overflow orifice communicating with the receiving cavity, respectively, where the liquid inlet and the overflow orifice are provided adjacent to each other; and a liquid blocking element, provided in the receiving cavity and situated between the liquid inlet and the overflow orifice, and configured to prevent the liquid flowing into the receiving cavity via the liquid inlet from flowing into the overflow orifice.

Description

Title of the invention: Cleaning device liquid storage tank, automatic cleaning device, and cleaning base station technical field

[0001] This utility certificate relates to the field of self-propelled cleaning devices, and in particular a liquid storage tank of a cleaning device, an automatic cleaning device and a cleaning base station. TECHNOLOGICAL BACKGROUND

[0002] With the continued development of science and technology, intelligent cleaning robots have entered ordinary family life and become increasingly popular.

[0003] In current intelligent cleaning robots, there is a robot that can automatically clean the floor. To ensure that the robot's cleaning cloth remains moist, a liquid storage tank must be provided inside the robot to automatically replenish the cleaning liquid, such as water. An overflow port is generally provided near a liquid inlet of the liquid storage tank to facilitate the smooth discharge of water from the liquid storage tank and the smooth entry of water into the liquid storage tank.

[0004] However, when the cleaning fluid, such as water, is injected into the liquid storage tank via the liquid inlet, the water is prone to flow down the upper wall of the liquid storage tank due to pressure, allowing the injected water to be easily discharged from the liquid storage tank through the overflow port. Consequently, the liquid storage tank cannot be refilled with water normally. SUMMARY OF THE CERTIFICATE OF UTILITY

[0005] In view of the foregoing, embodiments of this utility certificate provide a liquid storage tank for a cleaning device, an automatic cleaning device, and a cleaning base station, primarily aimed at preventing the cleaning liquid from being discharged through an overflow orifice when the cleaning liquid is injected into the storage tank. liquid, thus allowing a normal replenishment of the liquid storage tank.

[0006] In a first aspect, the embodiments of this utility certificate provide a liquid storage tank for a cleaning device, comprising:

[0007] a tank body, comprising a receiving cavity, and a liquid inlet, a liquid outlet and an overflow orifice communicating with the receiving cavity, respectively, wherein the liquid inlet and the overflow orifice are provided adjacent to each other, the liquid inlet being configured to inject a cleaning fluid into the receiving cavity, and the liquid outlet being configured to discharge the cleaning fluid from the receiving cavity; and

[0008] a liquid blocking element, provided in the receiving cavity and located between the liquid inlet and the overflow orifice, and configured to prevent the liquid flowing into the receiving cavity via the liquid inlet from flowing into the overflow orifice.

[0009] Furthermore, the receiving cavity includes a cavity wall opposite the liquid inlet; and

[0010] The liquid blocking element is connected to the cavity wall.

[0011] In addition, the liquid blocking element is of a plate structure, and the liquid blocking element is erected between the liquid inlet and the overflow orifice, and extends along a liquid flow direction which flows into the receiving cavity via the liquid inlet.

[0012] In addition, the liquid blocking element comprises a first end and a second end arranged in sequence along the direction of flow of the liquid which flows into the receiving cavity via the liquid inlet, in which the second end is bent, in a direction towards the overflow orifice, relative to the first end.

[0013] Furthermore, the tank body comprises a first housing and a second housing, where the first housing and the second housing are connected to each other in a sealed manner, and form the receiving cavity in an enclosing manner; and

[0014] The liquid inlet, liquid outlet, and overflow orifice are provided on the first housing, respectively; and an inner surface of the second housing is opposite the liquid outlet; and

[0015] one side of the liquid blocking element is connected to the inner surface of the second housing, and another side of the liquid blocking element is connected to or spaced from an inner surface of the first housing; and

[0016] the inner surface of the second housing is the cavity wall.

[0017] In addition, the liquid blocking element is formed as a single unit with the second housing and connected to it.

[0018] In addition, the first housing and the second housing are ultrasonically welded or bonded with a sealing material.

[0019] Furthermore, the liquid inlet comprises a first tubular column and a second tubular column, where the first tubular column is located in the receiving cavity, and a first end of the first tubular column is connected to the inner surface of the first housing; the second tubular column is located outside the receiving cavity, a first end of the second tubular column is connected to an outer surface of the first housing; and the first tubular column is in communication with the second tubular column; and

[0020] another end of the first tubular column is opposite the cavity wall.

[0021] In addition, the overflow orifice comprises a third tubular column and a fourth tubular column, where

[0022] the third tubular column is located in the receiving cavity, one end of the third tubular column is connected to the inner surface of the first housing, and another end of the third tubular column is opposite the wall of the cavity;

[0023] The fourth tubular column is located outside the receiving cavity, one end of the fourth tubular column is connected to the outer surface of the first housing, and the third tubular column is connected to the fourth tubular column; and

[0024] The liquid blocking element is provided between the first tubular column and the third tubular column.

[0025] In a second aspect, the embodiments of this utility certificate further provide an automatic cleaning device comprising the liquid storage tank of the cleaning device mentioned above.

[0026] In a third aspect, the embodiments of this utility certificate further provide a cleaning base station comprising the liquid storage tank of the cleaning device mentioned above.

[0027] By means of the above technical solutions, this utility certificate presents at least the following beneficial effects.

[0028] In the technical solutions provided by the embodiments of this utility certificate, the liquid blocking element is provided between the liquid inlet and the overflow orifice, enabling the liquid blocking element to block water flowing down the cavity wall of the receiving cavity due to the strain of entering the overflow orifice when the cleaning liquid, such as water, is injected into the receiving cavity of the tank body via the liquid inlet. This prevents the injected water from being discharged from the tank body via the overflow port, thus ensuring a normal replenishment of water in the liquid storage tank and also preventing water waste. Brief description of the drawings

[0029] The accompanying drawings of this utility certificate are included herein as embodiments of this utility certificate for the purpose of understanding it. The accompanying drawings illustrate embodiments of this utility certificate and descriptions thereof to explain the principles of this utility certificate.

[0030] On the attached drawings:

[0031] Fig. 1 is a schematic diagram of the overall structure of a liquid storage tank of a cleaning device according to an embodiment of this utility certificate;

[0032] [Fig.2] is a schematic diagram of a local structure of a first housing of a liquid storage tank of a cleaning device according to an embodiment of the present utility certificate;

[0033] [Fig. 3] is a schematic diagram of a local structure of a liquid storage tank of a cleaning device according to an embodiment of this utility certificate; and

[0034] [Fig.4] is a schematic cross-sectional view of a liquid storage tank of a cleaning device according to an embodiment of this utility certificate.

[0035] Description of numerical references:

[0036] 1-tank body; 11-liquid inlet; 12-liquid outlet; 13-overflow orifice; 2-liquid blocking element; 21-first end; 22-second end; 14-first casing; 15-second casing; 111-first tubular column; 112-second tubular column; 131-third tubular column; and 132-fourth tubular column. DETAILED DESCRIPTION

[0037] In the following description, a large number of specific details are given to provide a more thorough understanding of this utility certificate. However, it may be obvious to a person skilled in the art that this utility certificate can be implemented without one or more of these details. In other examples, certain technical features well known in the art will not be described to avoid confusion with this utility certificate.

[0038] It should be noted that the terms used here are intended only to describe specific embodiments and are not intended to limit examples of embodiments according to this utility certificate. As used herein, the singular form is also intended to include the plural form, unless the context clearly indicates otherwise. Furthermore, it should also be understood that when used in this description, the terms "comprising" and / or "including" may indicate the presence of features, sets, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, sets, steps, operations, elements, components and / or combinations thereof.

[0039] Examples of embodiments according to this utility certificate will now be described in more detail with reference to the accompanying drawings. However, these examples of embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments indicated herein. It should be understood that these embodiments are provided to make the disclosure of this utility certificate thorough and complete, and to fully communicate the ideas of these examples of embodiments to those skilled in the art.

[0040] As shown in Figures 1 to 4, embodiments of this utility certificate provide a liquid storage tank for a cleaning device that can be applied to an autonomously moving cleaning device, such as a sweeping robot, a cleaning robot, a floor polishing robot, a weeding robot, and the like. The liquid storage tank of the cleaning device may include a tank body 1 and a liquid blocking element 2. The tank body 1 includes a receiving cavity, and a liquid inlet 11, a liquid outlet 12, and an overflow orifice 13 connected to the receiving cavity, respectively. The liquid inlet 11 and the overflow orifice 13 are provided adjacent to each other, and the receiving cavity includes a cavity wall opposite the liquid inlet 11.The liquid blocking element 2 is provided in the receiving cavity and is located between the liquid inlet 11 and the overflow orifice 13, and is configured to prevent liquid flowing into the receiving cavity via the liquid inlet 11 from flowing into the overflow orifice 13.

[0041] In the liquid storage tank of the cleaning device provided by the embodiments of this utility certificate, the liquid blocking element 2 is provided between the liquid inlet 11 and the overflow port 13, enabling the liquid blocking element 2 to block the cleaning liquid, such as water, which flows down the cavity wall of the receiving cavity due to the pressure of entering the overflow port 13 when the cleaning liquid, such as water, is injected into the receiving cavity of the tank body 1 via the liquid inlet 11. This prevents the injected water from being discharged from the tank body 1 via the overflow port. overflow 13, thus ensuring a normal replenishment of water in the liquid storage tank and also avoiding water waste.

[0042] More specifically, the liquid inlet 11 can be provided at one end of the tank body 1 and configured to inject a cleaning fluid, such as water, into the receiving cavity of the tank body 1; the liquid outlet can be provided at another end of the tank body 1 and configured to discharge water from the receiving cavity; and the overflow orifice 13 can be provided adjacent to the liquid inlet 11 and configured to discharge liquid to the outside when a liquid level in the receiving cavity is too high, thus maintaining the pressure in the receiving cavity normal, and the overflow orifice 13 can also be configured for air discharge or air inflow when water is injected into the tank body 1 or water is discharged from the tank body 1.More specifically, when water is injected into the receiving cavity via the liquid inlet 11, the receiving cavity can discharge gas through the overflow port 13 to maintain air pressure equilibrium within the receiving cavity, thus allowing the water injection to be carried out smoothly. When it is necessary to discharge water from the tank body 1, a water suction device such as a water pump can be connected to the liquid outlet 12 to pump water into the receiving cavity. During this pumping process, the receiving cavity is supplied with air via the overflow port 13 to maintain air pressure equilibrium within the receiving cavity, thus allowing the water discharge to be carried out smoothly.

[0043] In some embodiments, the receiving cavity may include a cavity wall opposite the liquid inlet 11, and the liquid blocking element 2 is connected to the cavity wall.

[0044] In the embodiments mentioned above, the liquid blocking element 2 is connected to the cavity wall opposite the liquid inlet 11. Therefore, when water entering the receiving cavity via the liquid inlet 11 flows down the cavity wall due to pressure, the liquid blocking element 2 can directly block the water entering through the liquid inlet 11 and flowing down the cavity wall. This ensures that water does not flow towards the overflow port 13, thus better preventing the injected water from being discharged from the tank body 1 via the overflow port 13, thereby ensuring normal water replenishment of the liquid storage tank and also preventing water waste.

[0045] The liquid blocking element 2 can be of various structural forms, as long as it is capable of preventing the liquid which flows into the receiving cavity via the liquid inlet 11 from flowing into the overflow orifice 13.

[0046] In certain embodiments, with reference to Figures 3 and 4, the liquid blocking element 2 may specifically be of a plate structure. The liquid blocking element 2 is erected between the liquid inlet 11 and the overflow orifice 13, and extends along a liquid flow direction that flows into the receiving cavity via the liquid inlet 11.

[0047] In the embodiments mentioned above, the liquid blocking element 2 has a plate structure and extends along the direction of flow of the liquid flowing into the receiving cavity via the liquid inlet 11. In this way, when the water injected into the receiving cavity of the tank body 1 via the liquid inlet 11 flows along the cavity wall opposite the liquid inlet 11 due to tension, the water intended to flow towards the overflow orifice 13 can flow along the liquid blocking element 2 under the blockage of the liquid blocking element 2, and cannot flow into the overflow orifice 13 on the other side of the liquid blocking element 2, thus preventing the water from being discharged via the overflow orifice. 13, and thus achieves the best blocking effect on the water. The structure is simple but reliable in use.

[0048] In order to ensure that the water flows smoothly into the receiving cavity of the tank body 1 under the action of the liquid blocking element 2, in certain embodiments, referring to [Fig.3], the liquid blocking element 2 may comprise a first end 21 and a second end 22 which are arranged in sequence along the direction of flow of the liquid which flows into the receiving cavity via the liquid inlet 11, and the second end 22 is bent, in a direction towards the overflow orifice 13, relative to the first end 21.

[0049] In the embodiments mentioned above, the second end 22 of the liquid blocking element 2 is bent, in the direction towards the overflow orifice 13, relative to the first end 21 of the liquid blocking element 2. As a result, when the water flows along the liquid blocking element 2 to the second end 22 under the blockage of the liquid blocking element 2, the water can flow smoothly into the receiving cavity under the guiding effect of the second end 22, thus ensuring that the injection of water from the tank body 1 is carried out smoothly.

[0050] Furthermore, on a surface on one side of the liquid blocking element 2 facing the liquid inlet 11, the first end 21 can undergo a smooth transition with the second end 22 at the connection between the first end 21 and the second end 22, thus further improving the guiding effect of the second end 22 on the water.

[0051] In certain embodiments, with reference to Figures 1 and 4, the reservoir body 1 may comprise a first housing 14 and a second housing 15. The first housing 14 and the second housing 15 are connected to each other by a snap-fit ​​mechanism and form the receiving cavity of the reservoir body 1 in an enclosed manner. The liquid inlet 11, the liquid outlet 12, and the overflow orifice 13 are provided on the first housing 14, respectively. The inner surface of the second housing 15 is opposite the liquid outlet 12, and the inner surface of the second housing 15 is the cavity wall described above. One side of the liquid blocking element 2 may be connected to the inner surface of the second housing 15, and another side of the liquid blocking element 2 is connected to, or spaced away from, the inner surface of the first housing 14.

[0052] In the embodiments mentioned above, the inner surface of the second housing 15 is opposite the liquid outlet 12, and a first side of the liquid blocking element 2 is connected to the inner surface of the second housing 15. Consequently, when water flows along the inner surface of the second housing 15 due to a tension, the water can be blocked by the liquid blocking element 2 connected to the inner surface of the second housing 15, allowing the water to flow along the liquid blocking element 2 and not flow towards the overflow orifice 13, thus preventing the water from being discharged via the overflow orifice 13.

[0053] Water can flow along the inner surface of the second housing 15 due to tension when water is injected into the tank body 1 via the liquid inlet 11. Thus, the connection of the liquid blocking element 2 to the inner surface of the second housing 15 can serve to prevent water from flowing towards the overflow orifice on the other side of the liquid blocking element 2. However, the relationship between the liquid blocking element 2 and the first housing 14 has no effect on the blocking, by the liquid blocking element 2, of the flow of water towards the overflow orifice 13.For example, the liquid blocking element 2 can be connected directly, connected indirectly, or butted against the inner surface of the first housing 14, or the liquid blocking element 2 can be spaced away from the inner surface of the first housing 14, none of which will affect the blocking effect of the liquid blocking element 2 on the water. Thus, the relationship between the liquid blocking element 2 and the first housing 14 can be selected according to the actual requirements during the specific implementation, which is not limited in this application. In order to improve the structural strength of the tank body 1, the liquid blocking element 2 can be connected directly to or butted against the inner surface of the first housing 14.

[0054] In the embodiments mentioned above, the tank body 1 is formed by a leak-proof connection of the first housing 14 and the second housing 15, which facilitates the treatment and manufacture of the tank body 1. In addition, when the liquid storage tank of the cleaning device is used, the first housing 14 can be provided at the lower part, and the second housing 15 can be provided at the upper part, thus facilitating the injection and discharge of water from the tank body 1.

[0055] In certain embodiments, referring to [Fig.4], the liquid blocking element 2 can be formed as a single unit with and connected to the second housing 15. On the one hand, the reliability of the liquid blocking element 2 in blocking water can be improved, and on the other hand, the resistance of the second housing 15 can be improved, thereby improving the overall resistance of the tank body 1.

[0056] In some embodiments, the first housing 14 and the second housing 15 can be connected by ultrasonic welding or bonded with a sealing material. The first housing 14 and the second housing 15 can be connected by ultrasonic welding, and ultrasonic welding not only allows the first housing 14 and the second housing 15 to be connected and assembled together, but also provides a moisture- and water-resistant sealing effect, which improves the tightness of the connection between the first housing 14 and the second housing 15. Of course, the first housing 14 and the second housing 15 can also be bonded with the sealing material, which also ensures the tightness of the connection between the first housing 14 and the second housing 15.

[0057] In certain embodiments, with reference to Figures 2 and 4, the liquid inlet 11 may comprise a first tubular column 111 and a second tubular column 112. The first tubular column 111 is located in the receiving cavity, and a first end of the first tubular column 111 is connected to an inner surface of the first housing 14. The second tubular column 112 is located outside the receiving cavity, and a first end of the second tubular column 112 is connected to an outer surface of the first housing 14. The first tubular column 111 is in communication with the second tubular column 112, and another end of the first tubular column 111 is opposite the cavity wall.

[0058] In the embodiments mentioned above, the first tubular column 111 of the liquid inlet 11 is located in the receiving cavity, and one end of the first tubular column 111 may be located at the highest point of the receiving cavity. That is, there may be a small distance between the other end of the first tubular column 111 and the inner surface of the second housing 15, thus preventing water from flowing out of the receiving cavity due to water pressure problems. The second tubular column 112 is located outside the receiving cavity and may be configured to be connected to an external water source, thus allowing water to be injected into the receiving cavity.

[0059] The first housing 14 is appreciably provided with a through hole between the first tubular column 111 and the second tubular column 112, thus allowing communication between the first tubular column 111 and the second tubular column 112.

[0060] In certain embodiments, with reference to Figures 2 and 4, the overflow orifice 13 may include a third tubular column 131 and a fourth tubular column 132. The third tubular column 131 is located in the receiving cavity; one end of the third tubular column 131 is connected to the inner surface of the first housing 14, and the other end of the third tubular column 131 is opposite the cavity wall. The fourth tubular column 132 is located outside the receiving cavity; one end of the fourth tubular column 132 is connected to the outer surface of the first housing 14. The first tubular column 111 is in communication with the second tubular column 112; and the liquid blocking element 2 is provided between the first tubular column 111 and the third tubular column 131.

[0061] In the embodiments mentioned above, the third tubular column 131 of the overflow orifice 13 is located in the receiving cavity, and one end of the third tubular column 131 may be located at the highest point of the receiving cavity. That is, there may be a small distance between the other end of the third tubular column 131 and the inner surface of the second housing 15, thus preventing water from flowing out of the receiving cavity due to water pressure problems. The fourth tubular column 132 is located outside the receiving cavity and may be configured for air intake or discharge, thereby injecting water into the receiving cavity or discharging water from it.

[0062] The first housing 14 is also appreciably provided with a through hole between the third tubular column 131 and the fourth tubular column 132, thus achieving communication between the third tubular column 131 and the fourth tubular column 132.

[0063] Embodiments of this utility certificate further provide an automatic cleaning device comprising the aforementioned liquid storage tank of the cleaning device. More specifically, the automatic cleaning device may be a sweeping robot, a cleaning robot, a floor polishing robot, or a weeding robot. Specifically, when the automatic cleaning device is the cleaning robot, cleaning liquid, such as water, that overflows from the overflow port 13 of the tank body 1 may flow into the cleaning cloth, or a special collection device of the robot.

[0064] The automatic cleaning device provided by the embodiments of this utility certificate includes the aforementioned liquid storage tank of the cleaning device. Therefore, the automatic cleaning device exhibits all the beneficial effects of the liquid storage tank of the cleaning device, which will not be repeated here.

[0065] Embodiments of this utility certificate further provide a cleaning base station, which includes the aforementioned liquid storage tank of the cleaning device, or the aforementioned automatic cleaning device. In this case, cleaning liquid such as water overflowing from the overflow port 13 can flow through a pipe to a cleaning tank, a drain pipe, a wastewater tank or a special collection device, or can flow to a wash tray of the base station to be pumped by a wastewater pump.

[0066] The cleaning base station provided by the embodiments of this utility certificate includes the aforementioned liquid storage tank of the automatic cleaning device or the automatic cleaning device itself. Therefore, the cleaning base station exhibits all the beneficial effects of the cleaning device's liquid storage tank, which will not be repeated here.

[0067] This utility certificate has been illustrated by the embodiments mentioned above, but it should be understood that the embodiments mentioned above are for illustrative and explanatory purposes only and are not intended to limit this utility certificate to the scope of the embodiments described. Furthermore, those skilled in the art can understand that this utility certificate is not limited to the embodiments mentioned above and that a wider variety of variations and modifications may be made in accordance with the teachings of this utility certificate, and that all such variations and modifications fall within the scope of protection claimed by this utility certificate. The scope of protection of this utility certificate is defined by the appended claims and their equivalent scopes.

Claims

Demands

1. Liquid storage tank of a cleaning device, characterized in that it comprises: a tank body (1), comprising a receiving cavity, and a liquid inlet (11), a liquid outlet (12) and an overflow orifice (13) communicating with the receiving cavity, respectively, in which the liquid inlet (11) and the overflow orifice (13) are provided adjacent to each other, the liquid inlet (11) being configured to inject a cleaning fluid into the receiving cavity, and the liquid outlet (12) being configured to discharge the cleaning fluid from the receiving cavity; and a liquid blocking element (2), provided in the receiving cavity, and located between the liquid inlet (11) and the overflow orifice (13).

2. Liquid storage tank of the cleaning device according to claim 1, wherein the liquid blocking element (2) is configured to prevent the liquid flowing into the receiving cavity via the liquid inlet (11) from flowing into the overflow orifice (13).

3. Liquid storage tank of the cleaning device according to claim 1, wherein the receiving cavity comprises a cavity wall opposite the liquid inlet (11); and the liquid blocking element (2) is connected to the cavity wall.

4. Liquid storage tank of the cleaning device according to claim 3, wherein the liquid blocking element (2) is of a plate structure, and the liquid blocking element (2) is erected between the liquid inlet (11) and the overflow orifice (13), and extends along a liquid flow direction which flows into the receiving cavity via the liquid inlet (11).

5. Liquid storage reservoir of the cleaning device according to claim 4, wherein the liquid blocking element (2) comprises a first end (21) and a second end (22) arranged sequentially along the direction of flow of the liquid flowing into the receiving cavity via the liquid inlet, wherein the second end (22) is bent, in a direction towards the overflow orifice (13), relative to the first end (21).

6. Liquid storage tank of the cleaning device according to claim 3, in which the tank body (1) comprises a first housing (14) and a second housing (15), in which the first housing (14) and the second housing (15) are connected to each other in a sealed manner, and form the receiving cavity in an surrounding manner; the liquid inlet (11), the liquid outlet (12) and the overflow orifice (13) are provided on the first housing (14), respectively; and an inner surface of the second housing (15) is opposite the liquid outlet (12); a first side of the liquid blocking element (2) is connected to the inner surface of the second housing (15), and another side of the liquid blocking element (2) is connected to or spaced from an inner surface of the first housing (14); and the inner surface of the second housing (15) is the cavity wall.

7. Liquid storage tank of the cleaning device according to claim 6, in which the liquid blocking element (2) is formed as a single unit with the second housing (15) and connected thereto.

8. Liquid storage tank of the cleaning device according to claim 6, in which the first housing (14) and the second housing (15) are ultrasonically welded or bonded with a sealing material.

9. Liquid storage tank of the cleaning device according to claim 6, wherein the liquid inlet (11) comprises a first tubular column (111) and a second tubular column (112), wherein the first tubular column (111) is located in the receiving cavity, and a first end of the first tubular column (111) is connected to the inner surface of the first housing (14); and the second tubular column (112) is located outside the receiving cavity, a first end of the second tubular column (112) is connected to an outer surface of the first housing (14), and the first tubular column (111) is in communication with the second tubular column (112); and

10.

11.

12. another end of the first tubular column (111) is opposite the cavity wall. Liquid storage tank of the cleaning device according to claim 9, in which the overflow orifice (13) comprises a third tubular column (131) and a fourth tubular column (132), in which the third tubular column (131) is located in the receiving cavity, a first end of the third tubular column (131) is connected to the inner surface of the first housing (14), and another end of the third tubular column (131) is opposite the wall of the cavity; The fourth tubular column (132) is located outside the receiving cavity; one end of the fourth tubular column (132) is connected to the outer surface of the first housing (14), and the third tubular column (131) is connected to the fourth tubular column (132); and the liquid blocking element (2) is provided between the first tubular column (111) and the third tubular column (131). An automatic cleaning device, characterized in that it comprises the liquid storage tank of the cleaning device according to any one of claims 1 to 10. Cleaning base station, characterized in that it comprises the liquid storage tank of the cleaning device according to any one of claims 1 to 10.

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