Liquid storage tank of cleaning device, automatic cleaning device, and cleaning base station

TWI937538BActive Publication Date: 2026-09-01BEIJING ROCKROBO TECH CO LTD
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Patent Information

Application Number
TW113131822
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-08-25
Filing Date
2024-08-23
Publication Date
2026-09-01
Estimated Expiration
2044-08-22

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    Figure TWG2TB001908516_002
  • Figure TWG2TB001908516_003
    Figure TWG2TB001908516_003
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Abstract

This disclosure provides a cleaning equipment liquid storage tank, an automatic cleaning device, and a cleaning base station, relating to the field of cleaning equipment technology. The main purpose is to prevent cleaning fluid from overflowing through the overflow port when it is injected into the storage tank, thus ensuring normal replenishment of the storage tank. The cleaning equipment liquid storage tank includes: a tank body, the tank body including a receiving cavity and an inlet, an outlet, and an overflow port respectively communicating with the receiving cavity, the inlet and the overflow port being disposed adjacent to each other; and a liquid-blocking member, the liquid-blocking member being disposed within the receiving cavity and located between the inlet and the overflow port, for preventing liquid flowing from the inlet into the receiving cavity from flowing into the overflow port.
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Description

Technical Field

[0001] This disclosure claims priority from Chinese Patent Application No. 202322318575.5, filed on August 25, 2023, which is hereby incorporated by reference in its entirety. This disclosure relates to the field of self-propelled cleaning equipment, and more specifically, to a cleaning equipment liquid storage tank, an automatic cleaning device, and a cleaning base station. Prior Art

[0002] With the continuous development of science and technology, smart cleaning robots have entered the lives of ordinary families and have gradually become popular.

[0003] Among current smart cleaning robots, there is one that can automatically mop the floor. To ensure the robot's mop remains moist, a liquid tank is installed inside the robot to automatically replenish cleaning fluids, such as water. To facilitate smooth drainage and refilling of the liquid tank, an overflow port is typically located near the tank's inlet.

[0004] However, when a cleaning liquid such as water is injected into the liquid storage tank through the liquid inlet, the water tends to flow along the top wall of the liquid storage tank due to tension, causing the injected water to be easily discharged from the liquid storage tank through the overflow port, thereby preventing the liquid storage tank from being properly replenished. Summary of the Invention

[0005] In view of this, the embodiments of the present disclosure provide a cleaning equipment liquid storage tank, an automatic cleaning equipment, and a cleaning base station, the main purpose of which is to prevent the cleaning liquid from being discharged through the overflow port when the cleaning liquid is injected into the liquid storage tank, thereby allowing the liquid storage tank to be normally replenished.

[0006] In a first aspect, the present disclosure provides a cleaning equipment liquid storage tank, comprising: A box body, the box body comprising a accommodating cavity and a liquid inlet, a liquid outlet, and a liquid overflow port respectively connected to the accommodating cavity, the liquid inlet and the liquid overflow port being arranged adjacent to each other; A liquid blocking member is arranged in the accommodating cavity and located between the liquid inlet and the overflow port.

[0007] In one embodiment, the liquid blocking member is used to prevent the liquid flowing into the accommodating cavity from the liquid inlet from flowing into the overflow port.

[0008] In one embodiment, the accommodating cavity includes a cavity wall opposite to the liquid inlet; The liquid blocking member is connected to the cavity wall.

[0009] In one embodiment, the liquid blocking member is a plate structure, and the liquid blocking member is vertically arranged between the liquid inlet and the overflow port, and extends along the flow direction of the liquid flowing from the liquid inlet into the accommodating cavity.

[0010] In one embodiment, the liquid blocking member includes a first end and a second end arranged in sequence along the flow direction of the liquid flowing from the liquid inlet into the accommodating chamber, and the second end is bent relative to the first end toward the overflow outlet.

[0011] In one embodiment, the box includes a first shell and a second shell, the first shell and the second shell are sealed and connected to form the accommodating cavity; The liquid inlet, the liquid outlet and the overflow port are respectively provided on the first shell; the inner surface of the second shell is opposite to the liquid outlet; One side of the liquid blocking member is connected to the inner surface of the second shell, and the other side of the liquid blocking member is connected to the inner surface of the first shell or has a gap with the inner surface of the first shell; The inner surface of the second shell is the cavity wall.

[0012] In one embodiment, the liquid blocking member is integrally connected to the second shell.

[0013] In one embodiment, the first shell and the second shell are ultrasonically welded or bonded with a sealant.

[0014] In one embodiment, the liquid inlet includes a first tubular column and a second tubular column; The first pipe string is located in the accommodating cavity, and one end of the first pipe string is connected to the inner surface of the first shell; the second pipe string is located outside the accommodating cavity, and one end of the second pipe string is connected to the outer surface of the first shell, and the first pipe string is in communication with the second pipe string; The other end of the first tube column is opposite to the cavity wall.

[0015] In one embodiment, the overflow port includes a third tube column and a fourth tube column; The third tube column is located in the accommodating cavity, and one end of the third tube column is connected to the inner surface of the first shell, and the other end of the third tube column is opposite to the cavity wall; The fourth tube column is located outside the accommodating cavity, and one end of the fourth tube column is connected to the outer surface of the first shell, and the third tube column is connected to the fourth tube column; The liquid blocking member is arranged between the first tube column and the third tube column.

[0016] In a second aspect, the disclosed embodiments further provide an automatic cleaning device, comprising the aforementioned cleaning device liquid storage tank.

[0017] In a third aspect, the disclosed embodiment further provides a cleaning base station, comprising the aforementioned cleaning equipment liquid storage tank.

[0018] By means of the above technical solution, the present disclosure has at least the following beneficial effects: The technical solution provided by the disclosed embodiment provides a liquid blocking member between the liquid inlet and the overflow port. Thus, when a cleaning liquid, such as water, is injected into the receiving chamber of the tank body through the liquid inlet, the liquid blocking member can block water flowing along the cavity wall of the receiving chamber due to tension from entering the overflow port, thereby preventing the injected water from being discharged from the tank body through the overflow port, thereby ensuring normal water replenishment of the liquid storage tank and avoiding water waste. Simple diagram description

[0019] The following figures of the present disclosure are hereby incorporated into the present disclosure as part of the embodiments of the present disclosure for understanding the present disclosure. The figures show the embodiments of the present disclosure and their descriptions, and are used to explain the principles of the present disclosure. In the accompanying drawings: Figure 1 is a schematic diagram of the overall structure of a cleaning device liquid storage tank according to an embodiment of the present disclosure; Figure 2 is a schematic diagram of a partial structure of a first housing of a cleaning device liquid storage tank according to an embodiment of the present disclosure; Figure 3 is a partial structural diagram of a liquid storage tank of a cleaning device provided in an embodiment of the present disclosure; FIG4 is a schematic cross-sectional view of a liquid storage tank of a cleaning device provided in an embodiment of the present disclosure. Implementation Method

[0020] In the following description, numerous specific details are provided to provide a more thorough understanding of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present disclosure.

[0021] It should be noted that the terms used herein are intended only to describe specific embodiments and are not intended to limit the exemplary embodiments of the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular is intended to include the plural. Furthermore, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0022] Exemplary embodiments according to the present disclosure will now be described in greater detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as limited to the embodiments described herein. It should be understood that these embodiments are provided to make this disclosure thorough and complete, and to fully convey the concepts of these exemplary embodiments to those skilled in the art.

[0023] As shown in Figures 1 to 4, the disclosed embodiments provide a liquid storage tank for cleaning equipment, which can be used in self-propelled cleaning equipment, such as a sweeping robot, a mopping robot, a floor polishing robot, or a weeding robot. The cleaning equipment liquid storage tank may include a box body 1, which includes a accommodating chamber and a liquid inlet 11, a liquid outlet 12, and an overflow port 13 respectively connected to the accommodating chamber, the liquid inlet 11 and the overflow port 13 being arranged adjacent to each other, and the accommodating chamber including a cavity wall opposite to the liquid inlet 11; a liquid blocking member 2, which is arranged in the accommodating chamber and located between the liquid inlet 11 and the overflow port 13, and is used to prevent the liquid flowing into the accommodating chamber from the liquid inlet 11 from flowing into the overflow port 13.

[0024] The cleaning equipment liquid storage tank provided in the disclosed embodiment has a liquid blocking member 2 disposed between a liquid inlet 11 and an overflow port 13. Thus, when cleaning liquid, such as water, is injected into the receiving chamber of the tank body 1 through the liquid inlet 11, the liquid blocking member 2 can block water flowing along the cavity wall due to tension from entering the overflow port 13, thereby preventing the injected water from being discharged from the tank body 1 through the overflow port 13. This ensures normal water replenishment of the liquid storage tank while also avoiding water waste.

[0025] Specifically, the liquid inlet 11 can be set at one end of the box body 1, for injecting cleaning liquid such as water into the holding chamber of the box body 1, and the liquid outlet 12 can be set at the other end of the box body 1, for discharging the water in the holding chamber, and the overflow port 13 can be set adjacent to the liquid inlet 11, for discharging liquid when the liquid level in the holding chamber is too high, so as to maintain normal pressure in the holding chamber, and can also be used for exhausting and taking in air when the box body 1 is filled with water and drained. Specifically, when water is injected into the holding chamber from the liquid inlet 11, the holding chamber can discharge gas through the overflow port 13 to maintain the air pressure balance in the holding chamber, so that the water filling can proceed smoothly; when the box body 1 needs to drain water to the outside, a pumping device such as a water pump can be connected through the liquid outlet 12 to pump out the water in the holding chamber. During this process, the holding chamber takes in air through the overflow port 13 to maintain the air pressure balance in the holding chamber, so that the drainage can proceed smoothly.

[0026] In some embodiments, the accommodating chamber may include a cavity wall opposite to the liquid inlet 11; the liquid blocking member 2 is connected to the cavity wall.

[0027] In the above embodiment, since the liquid blocking member 2 is connected to the cavity wall opposite to the liquid inlet 11, when the water entering the accommodating cavity from the liquid inlet 11 flows along the cavity wall due to tension, the liquid blocking member 2 can directly block the water entering from the liquid inlet 11 and flowing along the cavity wall, ensuring that the water does not flow to the overflow port 13, thereby better preventing the injected water from being discharged from the box body 1 through the overflow port 13, thereby ensuring the normal water replenishment of the liquid storage tank and avoiding water waste.

[0028] The liquid blocking member 2 can have various structural forms, as long as it can block the liquid flowing into the accommodating cavity from the liquid inlet 11 from flowing into the overflow port 13.

[0029] In some embodiments, referring to FIG. 3 and FIG. 4 , the liquid blocking member 2 may specifically be a plate structure, and the liquid blocking member 2 is vertically arranged between the liquid inlet 11 and the overflow port 13 , and extends along the flow direction of the liquid flowing from the liquid inlet 11 into the accommodating chamber.

[0030] In the above embodiment, the liquid blocking member 2 is a plate structure and is extended along the flow direction of the liquid flowing into the accommodating cavity from the liquid inlet 11. In this way, when the water injected into the accommodating cavity of the box body 1 through the liquid inlet 11 flows along the cavity wall opposite to the liquid inlet 11 due to tension, the water that wants to flow to the overflow port 13 can flow along the liquid blocking member 2 under the obstruction of the liquid blocking member 2, and cannot flow into the overflow port 13 on the other side of the liquid blocking member 2, thereby preventing water from being discharged through the overflow port 13, thereby achieving a good water blocking effect, simple structure, and reliable use.

[0031] In order to facilitate the smooth flow of water into the containing chamber of the box body 1 under the action of the liquid blocking member 2, in some embodiments, see Figure 3, the liquid blocking member 2 may include a first end 21 and a second end 22 arranged in sequence along the flow direction of the liquid flowing from the liquid inlet 11 into the containing chamber, and the second end 22 is bent relative to the first end 21 toward the overflow port 13.

[0032] In the above embodiment, the second end 22 of the liquid blocking member 2 is bent relative to the first end 21 thereof in the direction toward the overflow port 13. In this way, when water flows along the liquid blocking member 2 to the second end 22 under the obstruction of the liquid blocking member 2, the water can smoothly flow into the accommodating cavity under the guidance of the second end 22, thereby further ensuring the smooth filling of the box body 1 with water.

[0033] Furthermore, the surface of the liquid blocking member 2 on the side facing the liquid inlet 11 can have a smooth transition at the connection between the first end 21 and the second end 22, thereby further improving the water guiding effect of the second end 22.

[0034] In some embodiments, referring to Figures 1 and 4, the box body 1 may include a first shell 14 and a second shell 15, which are snap-fitted and connected to form a accommodating cavity of the box body 1; the liquid inlet 11, the liquid outlet 12 and the overflow port 13 are respectively arranged on the first shell 14; the inner surface of the second shell 15 is opposite to the liquid outlet 12, and the inner surface of the second shell 15 is the aforementioned cavity wall; wherein, one side of the liquid blocking member 2 can be connected to the inner surface of the second shell 15, and the other side of the liquid blocking member 2 is connected to the inner surface of the first shell 14 or there is a gap between the inner surface of the first shell 14.

[0035] In the above embodiment, the inner surface of the second shell 15 is opposite to the liquid outlet 12, and one side of the liquid blocking member 2 is connected to the inner surface of the second shell 15. In this way, when water flows along the inner surface of the second shell 15 due to tension, it can be blocked by the liquid blocking member 2 connected to the inner surface of the second shell 15, so that the water flows along the liquid blocking member 2 instead of flowing to the overflow port 13, thereby preventing the water from being discharged through the overflow port 13.

[0036] When water is poured into the housing 1 through the liquid inlet 11, the water will flow along the inner surface of the second shell 15 due to tension. Therefore, the connection between the liquid stopper 2 and the inner surface of the second shell 15 can prevent water from flowing to the overflow port on the other side of the liquid stopper 2. The relationship between the liquid stopper 2 and the first shell 14 has no effect on the liquid stopper 2 blocking water from flowing to the overflow port 13. For example, the liquid stopper 2 can be directly connected, indirectly connected, or abutted with the inner surface of the first shell 14, or a gap can be provided between the liquid stopper 2 and the inner surface of the first shell 14, without affecting the liquid stopper 2's ability to block water. Therefore, the relationship between the liquid stopper 2 and the first shell 14 can be selected according to actual needs during implementation and is not limited in this application. To improve the structural strength of the housing 1, the liquid stopper 2 can be directly connected to or abutted with the inner surface of the first shell 14.

[0037] In the above embodiment, the housing 1 is formed by sealingly connecting the first shell 14 and the second shell 15, which facilitates the processing and manufacturing of the housing 1. Furthermore, when the cleaning equipment liquid storage tank is in use, the first shell 14 can be located at the bottom and the second shell 15 can be located at the top, facilitating the filling and draining of the housing 1.

[0038] In some embodiments, as shown in FIG4 , the liquid blocking member 2 can be integrally connected to the second housing 15. This can improve the reliability of the liquid blocking member 2 in blocking water, and can also improve the strength of the second housing 15, thereby improving the overall strength of the housing 1.

[0039] In some embodiments, the first and second shells 14, 15 can be connected by ultrasonic welding or adhesive bonding. Ultrasonic welding not only allows the first and second shells 14, 15 to be connected and assembled together, but also provides a moisture-proof and waterproof sealing effect, thereby improving the sealing between the first and second shells 14, 15. Of course, the first and second shells 14, 15 can also be bonded by adhesive bonding to ensure a sealed connection between the first and second shells 14, 15.

[0040] In some embodiments, referring to Figures 2 and 4, the liquid inlet 11 may include a first tube column 111 and a second tube column 112; the first tube column 111 is located in the accommodating cavity, and one end of which is connected to the inner surface of the first shell 14; the second tube column 112 is located outside the accommodating cavity, and one end of which is connected to the outer surface of the first shell 14, and the first tube column 111 is connected to the second tube column 112; the other end of the first tube column 111 is opposite to the cavity wall.

[0041] In the above embodiment, the first tube column 111 of the liquid inlet 11 is located in the accommodating cavity, and the other end of the first tube column 111 can be located at the highest position of the accommodating cavity, that is, there can be a small distance between the other end of the first tube column 111 and the inner surface of the second shell 15 to prevent water in the accommodating cavity from flowing out due to water pressure problems. The second tube column 112 is located outside the accommodating cavity and can be used to connect to an external water source to inject water into the accommodating cavity.

[0042] It can be understood that the first shell 14 is provided with a through hole between the first tube column 111 and the second tube column 112 to achieve communication between the first tube column 111 and the second tube column 112.

[0043] In some embodiments, referring to Figures 2 and 4, the overflow port 13 may include a third tube column 131 and a fourth tube column 132; the third tube column 131 is located in the accommodating cavity, and one end of the third tube column 131 is connected to the inner surface of the first shell 14, and the other end of the third tube column 131 is opposite to the cavity wall; the fourth tube column 132 is located outside the accommodating cavity, and one end of the third tube column 132 is connected to the outer surface of the first shell 14, and the third tube column 131 is connected to the fourth tube column 132; the liquid blocking member 2 is arranged between the first tube column 111 and the third tube column 131.

[0044] In the above embodiment, the third tube column 131 of the overflow port 13 is located in the accommodating cavity, and the other end of the third tube column 131 can be located at the highest position of the accommodating cavity, that is, there can be a small distance between the other end of the third tube column 131 and the inner surface of the second shell 15 to avoid water in the accommodating cavity from flowing out due to water pressure problems. The fourth tube column 132 is located outside the accommodating cavity and can be used for air intake or exhaust to achieve drainage or water injection into the accommodating cavity.

[0045] It can be understood that the first shell 14 also has a through hole between the third tube column 131 and the fourth tube column 132 to achieve communication between the third tube column 131 and the fourth tube column 132.

[0046] The disclosed embodiments further provide an automatic cleaning device, including the aforementioned cleaning device liquid storage tank. Specifically, the automatic cleaning device may be a sweeping robot, a mopping robot, a floor polishing robot, or a weeding robot. Specifically, when the automatic cleaning device is a mopping robot, cleaning liquid, such as water, overflowing from the overflow port 13 of the housing 1 can flow into the robot's mopping cloth or a dedicated collection device.

[0047] The disclosed embodiment provides an automatic cleaning device, which includes the aforementioned cleaning device liquid storage tank. Therefore, the automatic cleaning device includes all the beneficial effects of the cleaning device liquid storage tank, which will not be described in detail here.

[0048] The disclosed embodiments further provide a cleaning base station, including the aforementioned cleaning equipment liquid storage tank or the aforementioned automatic cleaning equipment. In this case, the cleaning liquid, such as water, overflowing from the overflow port 13 can flow through a pipeline into a cleaning tank, drain pipe, sewage tank, or dedicated collection device, or it can flow into the base station's cleaning tray and be pumped away by a sewage pump.

[0049] The cleaning base station provided in the disclosed embodiment includes the aforementioned automatic cleaning device liquid storage tank or automatic cleaning device. Therefore, the cleaning base station includes all the beneficial effects of the cleaning device liquid storage tank, which will not be described in detail here.

[0050] The present disclosure has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. Furthermore, those skilled in the art will appreciate that the present disclosure is not limited to the above-described embodiments. Numerous variations and modifications may be made based on the teachings of the present disclosure, and such variations and modifications fall within the scope of the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

[0051] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

[0052] 1: Cabinet 2: Liquid blocking parts 11: Liquid inlet 12:Liquid outlet 13: Overflow port 14: First shell 15: Second shell 21: First End 22: Second End 111: First pipe string 112: Second pipe string 131: Third String 132: The fourth column

[0053] none

Claims

1. A liquid storage tank for a cleaning device, comprising: A housing, comprising a receiving cavity and an inlet, an outlet, and an overflow outlet respectively communicating with the receiving cavity, the inlet and the overflow outlet being disposed adjacent to each other; a liquid-blocking member, disposed within the receiving cavity and located between the inlet and the overflow outlet; wherein the receiving cavity includes a cavity wall opposite to the inlet; the liquid-blocking member is connected to the cavity wall; wherein the liquid-blocking member includes a first end and a second end arranged sequentially along the flow direction of liquid flowing from the inlet into the receiving cavity, the second end being bent relative to the first end toward the overflow outlet; a gap exists between the liquid-blocking member and the lower part of the housing.

2. The cleaning equipment liquid storage tank as claimed in claim 1, wherein the liquid baffle is used to prevent liquid flowing from the inlet into the receiving cavity from flowing into the overflow port.

3. The cleaning equipment liquid storage tank as described in claim 1, wherein: The liquid-blocking component is a plate structure, which is erected between the liquid inlet and the liquid overflow outlet and extends along the flow direction of the liquid flowing from the liquid inlet into the receiving cavity.

4. The cleaning equipment liquid storage tank as described in claim 1, wherein: The enclosure includes a first shell and a second shell, which are sealed together and enclose the receiving cavity. The inlet, outlet, and overflow are respectively disposed on the first housing; one side of the liquid-blocking member is connected to the inner surface of the second housing, and the other side of the liquid-blocking member has a gap with the inner surface of the first housing; the inner surface of the second housing is the cavity wall.

5. The cleaning equipment liquid storage tank as described in claim 4, wherein: The liquid-blocking component is integrally formed and connected to the second housing.

6. The cleaning equipment liquid storage tank as described in claim 4, wherein: The first housing and the second housing are ultrasonically welded or bonded together with sealant.

7. The cleaning equipment liquid storage tank as described in claim 4, wherein: The liquid inlet includes a first tubing and a second tubing; the first tubing is located inside the receiving cavity, and one end of it is connected to the inner surface of the first housing; The second tubing is located outside the receiving cavity, and one end of it is connected to the outer surface of the first housing. The first tubing communicates with the second tubing. The other end of the first tubing is opposite to the cavity wall.

8. The cleaning equipment liquid storage tank as described in claim 7, wherein: The overflow port includes a third tubing and a fourth tubing; the third tubing is located inside the receiving cavity, with one end connected to the inner surface of the first housing and the other end opposite to the cavity wall; the fourth tubing is located outside the receiving cavity, with one end connected to the outer surface of the first housing, and the third tubing and the fourth tubing are in communication; the liquid-blocking element is disposed between the first tubing and the third tubing.

9. An automatic cleaning device comprising a cleaning device reservoir as described in any one of claims 1 to 8.

10. A cleaning base station, comprising a cleaning equipment reservoir as described in any one of claims 1 to 8.

Citation Information

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