Cleaning liquid containing assembly and self-moving cleaning equipment

Abstract

The utility model provides a cleaning liquid containing assembly and self-moving cleaning equipment. The cleaning liquid containing assembly is provided with a liquid inlet and outlet structure and an air inlet and outlet structure which are composed of a plurality of channels of the shell and a plurality of one-way valves, so that the cleaning liquid containing assembly can be suitable for various application scenes of the self-moving cleaning equipment comprising the cleaning liquid containing assembly. Moreover, due to the fact that the one-way valves are arranged on the multiple channels of the shell, the cleaning liquid in the cleaning liquid containing assembly can be prevented from flowing out unexpectedly from the containing space through the channels, and the risk of liquid leakage is basically eliminated.

Description

Technical Field

[0001] The present disclosure relates to a structure for containing a cleaning liquid in a self - moving cleaning device, and more particularly to a cleaning liquid containing assembly and a self - moving cleaning device including the cleaning liquid containing assembly. Background Art

[0002] An autonomous mobile device refers to an intelligent mobile device that autonomously performs preset tasks, and the autonomous mobile device can autonomously move on a traveling surface according to the results sensed by its sensing components. Currently, autonomous mobile devices generally include, but are not limited to, self - moving cleaning devices (such as intelligent self - moving cleaning devices, intelligent floor scrubbers, window cleaning robots), companion - type mobile robots (such as intelligent electronic pets, nanny robots), service - type mobile robots (such as reception robots in hotels, inns, meeting places), industrial inspection intelligent devices (such as power inspection robots, intelligent forklifts, etc.), and security robots (such as home or commercial intelligent guard robots).

[0003] In a self - moving cleaning device having a wet cleaning component, there is also a cleaning liquid containing assembly such as a water tank, and the cleaning liquid containing assembly generally contains a cleaning liquid such as water. When the cleaning liquid in the cleaning liquid containing assembly is consumed too much and needs to be replenished, the self - moving cleaning device will dock at a base station such as a charging dock or a charging pile, and the cleaning liquid containing assembly of the self - moving cleaning device will be replenished with the cleaning liquid through the liquid supply system in the base station. For this reason, in existing self - moving cleaning devices, the cleaning liquid containing assembly is formed with a liquid inlet / outlet structure and an air inlet / outlet structure that communicate its inside and outside. In this way, when the cleaning liquid containing assembly replenishes and supplies the cleaning liquid through the liquid inlet / outlet structure, the cleaning liquid containing assembly will intake and exhaust air through the air inlet / outlet structure. However, as the application of self - moving cleaning devices becomes more and more extensive, self - moving cleaning devices need to be applicable to more and more application scenarios (such as cleaning a surface to be cleaned, self - cleaning wet cleaning parts such as rags and mops, and replenishing cleaning liquid, etc.). The structures of the liquid inlet / drainage structure and the air inlet / outlet structure of the existing cleaning liquid containing assembly are too simple to be applicable to all these application scenarios. Moreover, in some application scenarios, there is also a risk that the cleaning liquid of the self - moving cleaning device leaks through the air inlet / outlet structure. Summary of the Utility Model

[0004] Based on the problems of the above - mentioned prior art, the object of the present disclosure is to provide a cleaning liquid containing assembly, the liquid inlet / drainage structure and the air inlet / outlet structure of which can be applicable to various application scenarios of self - moving cleaning devices, and basically eliminate the risk of liquid leakage. Another object of the present disclosure is to provide a self - moving cleaning device including the above - mentioned cleaning liquid containing assembly.

[0005] To achieve the above object, the present disclosure adopts the following technical solutions.

[0006] The present disclosure provides a cleaning liquid containing assembly for a self - moving cleaning device, and the cleaning liquid containing assembly includes:

[0007] A housing, which forms an accommodation space for receiving cleaning liquid inside, and the housing also forms a first supply passage, a second supply passage, a drainage passage, and an exhaust passage;

[0008] A first one - way valve, which is installed in the housing and located in the first supply passage, and the first one - way valve can be used to unidirectionally supply cleaning liquid and air to the accommodation space via the first supply passage;

[0009] A second one - way valve, which is installed in the housing and located in the second supply passage, and the second one - way valve can be used to unidirectionally supply cleaning liquid and air to the accommodation space via the second supply passage;

[0010] A third one - way valve, which is installed in the housing and located in the drainage passage, and the third one - way valve can be used to unidirectionally discharge cleaning liquid from the accommodation space via the drainage passage; and

[0011] A fourth one - way valve, which is installed in the housing and located in the exhaust passage, and the fourth one - way valve can be used to unidirectionally discharge air from the accommodation space via the exhaust passage.

[0012] In an alternative embodiment, the first one - way valve includes a first valve body, and a first valve cavity is formed inside the first valve body, and

[0013] The first valve body has two first elastic valve flaps, the two first elastic valve flaps abut against each other in the natural state and can be separated from each other under the action of external fluid pressure, and the two first elastic valve flaps enable the first valve cavity to be controllably communicated with the accommodation space.

[0014] In another alternative embodiment, the first one - way valve further includes a plurality of sealing ribs, the plurality of sealing ribs are arranged at intervals in the axial direction of the first valve body, each sealing rib protrudes radially outward from the outer peripheral surface of the first valve body, and each sealing rib extends continuously in the circumferential direction of the first valve body for a full circle, and the first valve body is in interference fit with the first supply passage via the plurality of sealing ribs.

[0015] In another alternative embodiment, in the first supply passage, the housing forms an annular protrusion, and the annular protrusion forms a through - hole.

[0016] The first one-way valve further includes a limiting rib, which protrudes radially outward from the outer peripheral surface of the first valve body and continuously extends circumferentially around the first valve body for a full circle. The outer diameter of the limiting rib is greater than the inner diameter of the through hole, and the limiting rib is positioned on a side farther from the outer opening of the first supply passage than the annular protrusion.

[0017] In another alternative solution, the first valve body further has a first axial portion and a second axial portion connected to each other. The outer diameter of the first axial portion is greater than the outer diameter of the second axial portion and greater than the inner diameter of the through hole. The plurality of sealing ribs are provided on the first axial portion, the limiting rib is provided on the second axial portion, and the first axial portion and the limiting rib are located on both sides of the annular protrusion.

[0018] In another alternative solution, the second one-way valve includes a second valve body, and a second valve chamber is formed inside the second valve body, and

[0019] the second valve body has two second elastic valve flaps, the two second elastic valve flaps abut against each other in a natural state and can be separated from each other under the action of fluid pressure from the outside, and the two second elastic valve flaps enable the second valve chamber to be controllably communicated with the accommodation space.

[0020] In another alternative solution, the second valve body further has an insertion portion and a flange portion.

[0021] The insertion portion has an outer cylinder portion, an inner cylinder portion and a connecting portion. The inner cylinder portion is located radially inside the outer cylinder portion, and the inner cylinder portion and the outer cylinder portion are connected via the connecting portion. The outer cylinder portion is in interference fit with the housing and is inserted into the second supply passage, and the second valve chamber is formed inside the inner cylinder portion.

[0022] The flange portion extends radially outward from the outer cylinder portion, and the flange portion abuts against the outer surface of the housing.

[0023] In another alternative solution, the housing has a column rising from the bottom of the accommodation space, the exhaust passage is formed inside the column, and the third one-way valve is provided at the top end of the column.

[0024] In another alternative solution, the accommodation space includes a first sub-space and a second sub-space located on the left and right sides, a flow channel is formed inside the housing, and the first sub-space and the second sub-space are communicated through the flow channel.

[0025] The present disclosure also provides a self-moving cleaning device, including the cleaning liquid accommodation assembly according to any one of the above technical solutions.

[0026] By adopting the above technical solution, the present disclosure provides a cleaning liquid containing assembly and a self-moving cleaning device. In the cleaning liquid containing assembly, an accommodation space for accommodating the cleaning liquid, a first supply passage, a second supply passage, a liquid discharge passage, and an exhaust passage are formed inside the housing. Further, the cleaning liquid containing assembly further includes a first one-way valve, a second one-way valve, a third one-way valve, and a fourth one-way valve. The first one-way valve is installed in the housing and located in the first supply passage, and the first one-way valve can be used to unidirectionally supply the cleaning liquid and air to the accommodation space via the first supply passage. The second one-way valve is installed in the housing and located in the second supply passage, and the second one-way valve can be used to unidirectionally supply the cleaning liquid and air to the accommodation space via the second supply passage. The third one-way valve is installed in the housing and located in the liquid discharge passage, and the third one-way valve can be used to unidirectionally discharge the cleaning liquid from the accommodation space via the liquid discharge passage. The fourth one-way valve is installed in the housing and located in the exhaust passage, and the fourth one-way valve can be used to unidirectionally discharge the air from the accommodation space via the exhaust passage.

[0027] By adopting the above solution, the cleaning liquid containing assembly according to the present disclosure has a liquid inlet and discharge structure and an air inlet and exhaust structure composed of multiple passages and multiple one-way valves of the housing, so that the cleaning liquid containing assembly can be applied to various application scenarios of the self-moving cleaning device including the cleaning liquid containing assembly. For example, the cleaning liquid containing assembly according to the present disclosure can at least be applied to the following typical application scenarios: the scenario where the self-moving cleaning device is in a wet working mode; the scenario where the self-moving cleaning device cleans a wet cleaning member such as a rag or a mop at a base station such as a charging stand or a charging pile; the scenario where the self-moving cleaning device automatically replenishes the cleaning liquid at the above base station; and the scenario of manually replenishing the cleaning liquid of the self-moving cleaning device. Moreover, since one-way valves are provided in multiple passages of the housing, it is possible to prevent the cleaning liquid of the cleaning liquid containing assembly from undesirably flowing out of the accommodation space via each passage, and basically eliminate the risk of liquid leakage. Description of the Drawings

[0028] Figures 1A to 1C is a perspective schematic view showing the structure of a cleaning liquid containing assembly according to an embodiment of the present disclosure.

[0029] Figure 1D and Figure 1E is a perspective schematic view showing the partial structure of the cleaning liquid containing assembly in Figure 1A

[0030] Figure 2A is a perspective schematic view showing Figure 1A the partial cross-sectional schematic view of the cleaning liquid containing assembly in

[0031] Figure 2B ​shows Figure 2A a partially enlarged schematic view of

[0032] Figure 2C shows Figure 1A a three-dimensional schematic view of the first one-way valve of the cleaning liquid containing assembly in

[0033] Figure 2D shows Figure 2C a sectional schematic view of the first one-way valve in

[0034] Figure 2E shows Figure 1A a partial sectional schematic view of the cleaning liquid containing assembly in, mainly showing the first supply passage and its surrounding structure, and the liquid injection nozzle of the liquid injection assembly of the base station is inserted into the first supply passage.

[0035] Figure 3 is a partial sectional schematic view of the cleaning liquid containing assembly, mainly showing the second supply passage and its surrounding structure.

[0036] Figure 4A is a partial sectional schematic view of the cleaning liquid containing assembly, mainly showing the drainage passage and its surrounding structure.

[0037] Figure 4B shows Figure 4A a partially enlarged schematic view of

[0038] Figure 5 is a three-dimensional schematic view of a self - moving cleaning device according to an embodiment of the present disclosure, which includes Figure 1A the cleaning liquid containing assembly shown in

[0039] Explanation of reference numerals

[0040] 1 - housing; 1c - accommodation space; 1c1 - first sub - space; 1c2 - second sub - space; 1p1 - first supply passage; 1p2 - second supply passage; 1p3 - drainage passage; 1p4 - exhaust passage; 1p5 - flow channel; 11 - annular protrusion; 12 - column;

[0041] 2a - first one - way valve; 21 - first valve body; 21c - first valve cavity; 211 - first elastic valve flap; 212 - first axial part; 213 - second axial part; 22 - sealing rib; 23 - limiting rib;

[0042] 2b - second one - way valve; 22 - second valve body; 22c - second valve cavity; 221 - second elastic valve flap; 222 - insertion part; 2221 - outer cylinder part; 2222 - inner cylinder part; 2223 - connecting part; 223 - flange part;

[0043] 2c - Third one-way valve;

[0044] 2d - Fourth one-way valve. Detailed implementation manners

[0045] The embodiments of the present disclosure will be described below with reference to the accompanying drawings. For ease of understanding, among the elements shown in the respective drawings, there may be elements that are represented differently from the actual dimensions and scales, such as dimensions and scales.

[0046] The cleaning liquid containing assembly according to the embodiments of the present disclosure will be described below with reference to the accompanying drawings of the specification.

[0047] The cleaning liquid containing assembly according to the embodiments of the present disclosure is configured to be part of the main body of a self - moving cleaning device, and the cleaning liquid containing assembly is assembled with other parts of the main body in a detachable manner. In this embodiment, as Figures 1A to 4B shown, the cleaning liquid containing assembly according to the present disclosure includes a housing 1 assembled together and four one - way valves (i.e., the first one - way valve 2a, the second one - way valve 2b, the third one - way valve 2c, and the fourth one - way valve 2d) respectively installed in four passages formed in the housing 1.

[0048] In this embodiment, as Figure 1D and Figure 1E shown, an accommodation space 1c for accommodating a cleaning liquid such as water is formed inside the housing 1. Due to the need to provide other components in the cleaning liquid containing assembly, the accommodation space 1c of the cleaning liquid containing assembly has an irregular shape. In this embodiment, the accommodation space 1c includes two main parts located on the left and right sides of the cleaning liquid containing assembly, namely the first sub - space 1c1 and the second sub - space 1c2. It can be understood that the accommodation space 1c can be formed into various shapes as needed, as long as the accommodation space 1c can accommodate a sufficient amount of cleaning liquid. A flow channel 1p5 is also formed inside the housing 1, and the first sub - space 1c1 and the second sub - space 1c2 are connected through the flow channel 1p5, so that the cleaning liquid and air can flow between the first sub - space 1c1 and the second sub - space 1c2 via the flow channel 1p5. In this way, during the process of supplying the cleaning liquid to the accommodation space 1c, the air in the accommodation space 1c can quickly achieve left - right pressure balance through the gas flow channel 1p5.

[0049] As Figures 1A to 1C as well as Figure 2A and Figure 2BAs shown, a first supply passage 1p1 communicating with the accommodation space 1c is formed in the housing 1. The first supply passage 1p1 may communicate with a first sub-space 1c1 of the accommodation space 1c for supplying cleaning liquid and air to the accommodation space 1c. The first supply passage 1p1 has an outer opening provided at a side portion of the cleaning liquid accommodation assembly for insertion of a liquid injection nozzle of a liquid injection assembly of a base station such as a charging stand and a charging pile. Specifically, as Figure 2E shown, in a state where the self-propelled cleaning device including the cleaning liquid accommodation assembly is docked to the above-mentioned base station, the liquid injection nozzle can be inserted into the first supply passage 1p1 through the outer opening, so as to automatically supply the cleaning liquid to the accommodation space 1c. In addition, after the consumption of the cleaning liquid in the accommodation space 1c causes the air pressure in the accommodation space 1c to decrease, the space outside the accommodation space 1c can supply air to the accommodation space 1c through the first supply passage 1p1. In addition, as Figure 2A and Figure 2B shown, in the first supply passage 1p1, a ring-shaped protrusion 11 protruding toward the inside of the first supply passage 1p1 is formed in the housing 1. The ring-shaped protrusion 11 continuously extends in a full circle along the circumferential direction of the first supply passage 1p1 and the ring-shaped protrusion 11 is formed with a through hole, so that the first one-way valve 2a is inserted through the through hole and installed at the ring-shaped protrusion 11.

[0050] As Figures 1A to 1C and Figure 3 shown, a second supply passage 1p2 communicating with the accommodation space 1c is formed in the housing 1. The second supply passage 1p2 may communicate with a second sub-space 1c2 of the accommodation space 1c for supplying cleaning liquid and air to the accommodation space 1c. The second supply passage 1p2 has an outer opening provided at the top of the cleaning liquid accommodation assembly for insertion of a manual liquid replenishing appliance. Specifically, after the operator inserts the liquid replenishing appliance into the second supply passage 1p2, the cleaning liquid can be manually supplied to the accommodation space 1c by using the liquid replenishing appliance. In addition, after the consumption of the cleaning liquid in the accommodation space 1c causes the air pressure in the accommodation space 1c to decrease, the space outside the accommodation space 1c can supply air to the accommodation space 1c through the second supply passage 1p2.

[0051] As Figures 1A to 1D shown, a drain passage 1p3 communicating with the accommodation space 1c is formed in the housing 1. The drain passage 1p3 may communicate with the first sub-space 1c1 of the accommodation space 1c for discharging the cleaning liquid from the accommodation space 1c toward the outside, so as to supply the cleaning liquid to a wet cleaning assembly of the self-propelled cleaning device for wetting a wet cleaning member such as a rag or a mop.

[0052] As Figure 1D 、 Figure 4A and Figure 4BAs shown, the housing 1 is formed with an exhaust passage 1p4 communicating with the accommodation space 1c. The exhaust passage 1p4 can communicate with the first sub-space 1c1 of the accommodation space 1c for discharging air from the accommodation space 1c to the outside. Specifically, the housing 1 includes a top wall and a bottom wall that define the accommodation space 1c in the height direction of the cleaning liquid accommodation assembly. The top wall is formed with a protrusion that protrudes away from the bottom wall relative to the surrounding portion, and thus a hollow structure that opens toward the bottom wall is formed by the protrusion. The housing 1 has a column 12 that stands up from the bottom wall toward the top wall. The column 12 extends linearly along the height direction and is formed in a cylindrical structure. The column 12 extends into the hollow structure of the protrusion and is spaced apart from the top wall. An exhaust passage 1p4 that communicates the accommodation space 1c with the outside is formed in the column 12. The exhaust passage 1p4 is formed with an upper opening and a lower opening at the top end portion and the bottom end portion of the column 12 facing the top wall, respectively. By forming the above exhaust passage 1p4 in the column 12, it is beneficial for the air in the accommodation space 1c to be discharged via the exhaust passage 1p4.

[0053] In this embodiment, as Figure 2A and Figure 2B shown, the first one-way valve 2a is installed in the housing 1 and is located in the first supply passage 1p1. The first one-way valve 2a can be used to supply cleaning liquid and air to the accommodation space 1c unidirectionally via the first supply passage 1p1.

[0054] As Figures 2A to 2D shown, the first one-way valve 2a is a so-called duckbill valve and includes a first valve body 21. A first valve cavity 21c is formed inside the first valve body 21, and the first valve cavity 21c is always communicated with the outside of the cleaning liquid accommodation assembly via the first supply passage 1p1. Further, the first valve body 21 has two first elastic valve flaps 211. The two first elastic valve flaps 211 abut against each other in the natural state and can be separated from each other under the action of the fluid pressure from the outside. The two first elastic valve flaps 211 enable the first valve cavity 21c to be controllably communicated with the accommodation space 1c. Specifically, when replenishing the cleaning liquid into the accommodation space 1c via the liquid injection nozzle, under the action of the cleaning liquid from the liquid injection nozzle, the two first elastic valve flaps 211 can be separated from each other so that the first valve cavity 21c is communicated with the accommodation space 1c via the first supply passage 1p1. In addition, as the cleaning liquid in the accommodation space 1c is consumed, resulting in a decrease in the air pressure in the accommodation space 1c, under the action of the external air pressure, the two first elastic valve flaps 211 can also be separated from each other so that the first valve cavity 21c is communicated with the accommodation space 1c via the first supply passage 1p1. Thus, the first one-way valve 2a is realized with a relatively simple and reliable structure, and the one-way controlled communication between the inside and outside of the accommodation space 1c via the first supply passage 1p1 can be achieved.

[0055] As Figures 2A to 2DAs shown, the first one-way valve 2a further includes two sealing ribs 22, which are arranged at intervals in the axial direction of the first valve body 21. Each sealing rib 22 protrudes from the outer peripheral surface of the first valve body 21 toward the radially outer side, and each sealing rib 22 continuously extends over the entire circumference along the circumferential direction of the first valve body 21. The first valve body 21 is in interference fit with the first supply passage 1p1 via the two sealing ribs 22. In this way, the first valve body 21 of the first one-way valve 2a can achieve effective sealing with the first supply passage 1p1 via these sealing ribs 22, so that the fluid (clean liquid and air) can only enter the interior of the accommodation space 1c via the first valve chamber 21c, avoiding the undesired flow of the fluid through the space between the first valve body 21 and the first supply passage 1p1, and greatly reducing the risk of leakage of the clean liquid through the above space. It can be understood that in other alternative solutions, the shape and number of the sealing ribs 22 can be adjusted as needed.

[0056] As Figures 2A to 2D shown, the first one-way valve 2a further includes a limiting rib 23, which protrudes from the outer peripheral surface of the first valve body 21 toward the radially outer side and continuously extends over the entire circumference along the circumferential direction of the first valve body 21. The outer diameter of the limiting rib 23 is larger than the inner diameter of the through-hole of the annular protrusion 11 of the housing 1, and the limiting rib 23 is positioned on the side farther from the outer opening of the first supply passage 1p1 than the annular protrusion 11. Thus, the limiting rib 23 and the annular protrusion 11 form a snap-fit structure. Even if the liquid injection nozzle of the liquid injection assembly of the base station is pulled out from the first supply passage 1p1 and a negative pressure is generated in the first supply passage 1p1, the above snap-fit structure can be used to prevent the first one-way valve 2a from being disengaged due to the above negative pressure. In addition, as Figures 2A to 2D shown, the first valve body 21 also has a first axial portion 212 and a second axial portion 213 that are connected to each other. The outer diameter of the first axial portion 212 is larger than the outer diameter of the second axial portion 213 and larger than the inner diameter of the through-hole of the annular protrusion 11 of the housing 1, and the two sealing ribs 22 are both provided on the first axial portion 212. The outer diameter of the second axial portion 213 can be slightly smaller than the inner diameter of the through-hole, so that the second axial portion 213 can be inserted through the through-hole. The limiting rib 23 is provided on the second axial portion 213, and the first axial portion 212 and the limiting rib 23 are located on both sides of the annular protrusion 11. In this way, by using the cooperation of the limiting rib 23 and the first axial portion 212 with the annular protrusion 11, the position of the first one-way valve 2a in the first supply passage 1p1 can be further limited, preventing the first one-way valve 2a from generating a large displacement in the first supply passage 1p1 and causing a failure.

[0057] As Figure 2EAs shown, in a state where the self - moving cleaning device including the cleaning liquid containing assembly is docked at the base station, the liquid injection nozzle can be inserted into the first supply passage 1p1 and abutted against the first one - way valve 2a. The liquid supply passage of the liquid injection nozzle is directly communicated with the valve cavity of the first one - way valve 2a, so that the cleaning liquid can be automatically supplied to the containing space 1c via the first one - way valve 2a.

[0058] In this embodiment, as Figure 3 shown, the second one - way valve 2b is installed in the housing 1 and is located in the second supply passage 1p2. The second one - way valve 2b can be used to supply the cleaning liquid and air to the containing space 1c unidirectionally via the second supply passage 1p2.

[0059] As Figure 3 shown, the second one - way valve 2b is a so - called duck - bill valve and includes a second valve body 22. A second valve cavity 22c is formed inside the second valve body 22. The second valve cavity 22c is entirely located in the second supply passage 1p2 and is communicated with the outside of the cleaning liquid containing assembly. Further, the second valve body 22 has two second elastic valve flaps 221. The two second elastic valve flaps 221 abut against each other in the natural state and can be separated from each other under the action of the fluid pressure from the outside. The two second elastic valve flaps 221 enable the second valve cavity 22c to be controllably communicated with the containing space 1c. Specifically, when the cleaning liquid is replenished into the containing space 1c via a manual liquid replenishing device, under the action of the cleaning liquid from the liquid replenishing device, the two second elastic valve flaps 221 can be separated from each other so that the second valve cavity 22c is communicated with the containing space 1c via the second supply passage 1p2. In addition, as the cleaning liquid in the containing space 1c is consumed, resulting in a decrease in the air pressure in the containing space 1c, under the action of the external air pressure, the two second elastic valve flaps 221 can also be separated from each other so that the second valve cavity 22c is communicated with the containing space 1c via the second supply passage 1p2. Thus, the second one - way valve 2b is realized with a relatively simple and reliable structure, and the one - way controlled communication between the inside and outside of the containing space 1c via the second supply passage 1p2 can be achieved.

[0060] As Figure 3As shown, the second valve body 22 further includes an insertion portion 222 and a flange portion 223 that are fixed to each other, for example, by integral molding. Specifically, the insertion portion 222 has an outer cylinder portion 2221, an inner cylinder portion 2222, and a connecting portion 2223. The inner cylinder portion 2222 is located radially inside the outer cylinder portion 2221, and the inner cylinder portion 2222 and the outer cylinder portion 2221 are connected via the connecting portion 2223. The outer cylinder portion 2221 is in interference fit with the housing 1 and is inserted into the second supply passage 1p2, and a second valve chamber 22c is formed inside the inner cylinder portion 2222. Thus, the inner cylinder portion 2222 is configured to be able to cooperate with the connector of the liquid replenishing device. The flange portion 223 extends a relatively large area radially outward from the outer cylinder portion 2221, and the flange portion 223 abuts against the outer surface of the housing 1 in a state where the insertion portion 222 is inserted into the second supply passage 1p2, thereby forming a sealing structure with good sealing effect between the flange portion 223 and the outer surface of the housing 1. In this way, the structures of the inner cylinder portion 2222 and the outer cylinder portion 2221 are beneficial to the installation of the manual liquid replenishing device for replenishing the cleaning liquid. The interference fit between the outer cylinder portion 2221 and the housing 1 and the abutment of the flange portion 223 against the outer surface of the housing 1 can improve the sealing performance between the second one-way valve 2b and the housing 1.

[0061] In this embodiment, as Figure 1D shown, the third one-way valve 2c is installed in the housing 1 and is located in the drainage passage 1p3. The third one-way valve 2c can be used to discharge the cleaning liquid from the accommodation space 1c unidirectionally via the drainage passage 1p3. The third one-way valve 2c can also adopt the structure of a duckbill valve.

[0062] In this embodiment, as Figure 4A and Figure 4B shown, the fourth one-way valve 2d is installed in the housing 1 and is located in the exhaust passage 1p4. The fourth one-way valve 2d can be used to discharge the air from the accommodation space 1c unidirectionally via the exhaust passage 1p4.

[0063] As Figure 4A and Figure 4BAs shown, the fourth one-way valve 2d is a so-called duckbill valve and is installed at the top end of the upright column 12 erected on the bottom wall of the accommodation space 1c of the housing 1. The fourth one-way valve 2d allows the air in the accommodation space 1c to be discharged unidirectionally toward the outside via the exhaust passage 1p4. The valve body of the fourth one-way valve 2d forms a valve cavity communicating with the accommodation space 1c, and the two elastic valve flaps of the fourth one-way valve 2d form a duckbill structure. The two elastic valve flaps abut against each other in the natural state, so that the valve cavity of the fourth one-way valve 2d is disconnected from the exhaust passage 1p4. After the cleaning liquid is replenished into the accommodation space 1c to increase the air pressure in the accommodation space 1c, under the action of the air pressure from the accommodation space 1c, the two elastic valve flaps can be separated from each other, so that the valve cavity of the fourth one-way valve 2d is communicated with the exhaust passage 1p4. As the air in the accommodation space 1c is discharged to the outside of the accommodation space 1c via the exhaust passage 1p4, and the air pressure in the accommodation space 1c is reduced, the two elastic valve flaps rely on their own elasticity to return to the state of abutting against each other, thereby disconnecting the valve cavity of the fourth one-way valve 2d from the exhaust passage 1p4. In this way, by controlling the state of the elastic valve flaps of the fourth one-way valve 2d using the air pressure in the accommodation space 1c, the valve cavity can be controlled to communicate with the exhaust passage 1p4. In addition, the fourth one-way valve 2d is also provided with a stop net, and the stop net can have a large number of fine mesh holes, so that the stop net is formed into a porous structure that can stop the cleaning liquid but allow air to pass through. By providing the stop net, it can be further ensured that the cleaning liquid will not enter the exhaust passage 1p4 via the one-way valve 2, but air can smoothly enter the exhaust passage 1p4 via the one-way valve 2 and be discharged. Further, after the cleaning liquid accommodation assembly is assembled, the lower opening of the exhaust passage 1p4 faces the wet cleaning assembly. Therefore, even if a very small amount of cleaning liquid is discharged through the exhaust passage 1p4, it will be absorbed by the wet cleaning member such as a rag or a mop of the wet cleaning assembly, and thus will not fall onto the surface to be cleaned where the self-moving cleaning device moves autonomously.

[0064] The cleaning liquid containing assembly according to the present disclosure has a liquid inlet / drainage structure and an air inlet / exhaust structure constituted by four passages 1p1, 1p2, 1p3, 1p4 of the housing 1 and four one-way valves 2a, 2b, 2c, 2d, so that the cleaning liquid containing assembly can be applicable to multiple application scenarios of the self-moving cleaning device including the cleaning liquid containing assembly. For example, the cleaning liquid containing assembly according to the present disclosure can be at least applicable to the following typical application scenarios: the scenario where the self-moving cleaning device is in the wet working mode; the scenario where the self-moving cleaning device washes a wet cleaning member such as a rag or a mop at a base station such as a charging stand or a charging pile; the scenario where the self-moving cleaning device automatically replenishes the cleaning liquid at the above base station; and the scenario of manually replenishing the cleaning liquid of the self-moving cleaning device. Moreover, since four one-way valves 2a, 2b, 2c, 2d are provided in each of the four passages 1p1, 1p2, 1p3, 1p4 of the housing 1, it is possible to prevent the cleaning liquid of the cleaning liquid containing assembly from undesirably flowing out of the containing space 1c through each passage, and the risk of liquid leakage is basically eliminated.

[0065] The self-moving cleaning device according to an embodiment of the present disclosure will be described below with reference to the accompanying drawings of the specification.

[0066] As Figure 5 shown, the self-moving cleaning device according to an embodiment of the present disclosure includes the cleaning liquid containing assembly described above, and the cleaning liquid containing assembly can form a part of the main body of the self-moving cleaning device. In a top view, the main body of the self-moving cleaning device can generally have a circular shape, and in other alternative solutions, it can be formed into various other shapes such as a D shape, an oval shape, a square shape, etc. When the self-moving cleaning device is in a normal operating state, the bottom surface of the main body faces the surface to be cleaned, and the bottom surface of the main body is usually parallel to the surface to be cleaned. Here, "parallel" not only includes the geometric parallel relationship between the bottom surface of the main body and the surface to be cleaned, but also includes the case where the two are substantially parallel. The above "substantially" means that within the reasonable error range recognized by those skilled in the art, the parallel relationship between the two can be determined to be established. For example, when the acute angle between the bottom surface of the main body and the surface to be cleaned is not greater than 5 degrees, it can be considered that the two are parallel to each other. In addition, in order to support and protect other components, other components of the self-moving cleaning device are usually installed inside the main body or have a connection relationship with the main body.

[0067] The self - moving cleaning device can move autonomously according to a preset control scheme in its processing unit. The surface to be cleaned where the self - moving cleaning device moves autonomously can be a flat surface or a curved surface with a relatively large radius of curvature. Typically, for example, it is the floor in each room of a building. The processing unit in this disclosure is a general term, and there are no restrictions on the type, quantity, and form of the processing unit. Specifically, the processing unit can be one or several of MCU, DSP, FPGA, GPU, or other various hardware chips, processors, or software algorithms with data processing and computing capabilities. Further, the processing unit can be the unified and unique processor of the self - moving cleaning device, or a collection of multiple processing units. The connection method, functions, and computing power distribution of multiple processing units can be adjusted as needed. For example, in an alternative solution, it can include a first processing unit and a second processing unit. In this case, the first processing unit and the second processing unit together implement various functions of the above - mentioned processing unit. In addition, the processing unit of the self - moving cleaning device according to this disclosure can receive parameters from the sensing component and can control the self - moving cleaning device through a preset program stored in the storage unit. In this disclosure, the data, information, and programs required by the processing unit during the processing can be stored in the storage unit and obtained from the storage unit as needed. The processing unit can store the processed data, information, etc. in the storage unit again. The storage unit can be RAM, ROM, etc., or devices and / or equipment with storage functions such as cloud / servers / mobile terminals connected through wired / wireless networks.

[0068] In addition to the above - mentioned wet cleaning component, the self - moving cleaning device can also include a dry cleaning component. The dry cleaning component is arranged in other parts of the main body and can include a main brush, side brushes (edge brushes), and a suction device, etc. Thus, when the self - moving cleaning device is moving on the surface to be cleaned, the surface to be cleaned can be cleaned through the dry cleaning component and / or the wet cleaning component. In different working modes, the cleaning operations achieved by the self - moving cleaning device include, but are not limited to, one or more of operations such as sweeping, mopping, and vacuuming.

[0069] The following describes multiple typical application scenarios applicable to the self - moving cleaning device according to the embodiments of this disclosure by using the liquid inlet and outlet structure and the air inlet and outlet structure of the cleaning liquid containing component.

[0070] The self - moving cleaning device according to an embodiment of the present disclosure can be in an application scenario of a wet working mode. In this application scenario, the self - moving cleaning device uses its wet cleaning component to perform wet cleaning on the surface to be cleaned. At this time, it is necessary to pump cleaning liquid to the wet cleaning component. During this process, the cleaning liquid in the self - moving cleaning device is pumped to the wet cleaning component through the drainage passage 1p3. Thus, the cleaning liquid in the accommodation space 1c is continuously discharged through the drainage passage 1p3 and continuously reduced. It is necessary to balance the air pressure in the accommodation space 1c of the cleaning liquid accommodation component by the entry of external air to achieve continuous pumping of the cleaning liquid. In this application scenario, both the first supply passage 1p1 and the second supply passage 1p2 are used to supply air to the accommodation space 1c, and the exhaust passage 1p4 cannot supply air.

[0071] The self - moving cleaning device according to an embodiment of the present disclosure can be in a scenario where it self - cleans a wet cleaning piece such as a rag or a mop at a base station. In this application scenario, the self - moving cleaning device cleans the wet cleaning piece at the base station. The cleaning liquid for the self - moving cleaning device to clean the wet cleaning piece comes from the accommodation space 1c of the self - moving cleaning device. Since the self - moving cleaning device is located on the base station, the liquid injection nozzle of the base station is inserted into the first supply passage 1p1, and it can only supply cleaning liquid to the accommodation space 1c via the first supply passage 1p1 and cannot supply air to the accommodation space 1c via the first supply passage 1p1. After the self - moving cleaning device continuously pumps cleaning liquid to the wet cleaning piece, the cleaning liquid in the accommodation space 1c continuously decreases via the drainage passage 1p3. It is necessary to balance the air pressure inside the accommodation space 1c by the entry of external air to achieve continuous pumping of the cleaning liquid. In this application scenario, the second supply passage 1p2 is used to supply air to the accommodation space 1c, and the exhaust passage 1p4 cannot supply air.

[0072] The self - moving cleaning device according to an embodiment of the present disclosure can be in a scenario where cleaning liquid is automatically replenished at a base station. When the base station supplies cleaning liquid to the accommodation space 1c of the self - moving cleaning device, it is necessary to discharge air from the accommodation space 1c to the outside. The base station automatically and continuously supplies cleaning liquid to the accommodation space 1c via the liquid injection nozzle and the first supply passage 1p1. The second supply passage 1p2 and the drainage passage 1p3 cannot discharge air. During this process, the air in the accommodation space 1c is discharged through the exhaust passage 1p4.

[0073] The self - moving cleaning device according to an embodiment of the present disclosure can be in a scenario where cleaning liquid is manually replenished. When the operator manually supplies cleaning liquid to the cleaning liquid containing assembly through the second supply passage 1p2, it is necessary to discharge air from the accommodation space 1c to the outside. The operator continuously supplies cleaning liquid to the accommodation space 1c through the second supply passage 1p2 via a manual liquid replenishment device. The first supply passage 1p1 and the liquid discharge passage 1p3 cannot discharge air. During this process, the air in the accommodation space 1c is discharged through the air discharge passage 1p4.

[0074] It should be understood that the above - mentioned embodiments are merely exemplary and are not used to limit the present disclosure. Those skilled in the art can make various modifications and changes to the above - mentioned embodiments under the teaching of the present disclosure without departing from the scope of the present disclosure. The following supplementary explanations are made for the technical solutions of the present disclosure.

[0075] i. In the technical solution of the present disclosure, the wet cleaning assembly can belong to the cleaning liquid containing assembly, or the wet cleaning assembly can be independent of the cleaning liquid containing assembly.

[0076] ii. In the above - mentioned specific embodiments, it is illustrated that the one - way valves 2a, 2b, 2c, 2d provided in the respective passages 1p1, 1p2, 1p3, 1p4 are so - called duck - bill valves, but the present disclosure is not limited thereto. In other alternative solutions, as long as the corresponding functions can be achieved, one - way valves with any structure can be adopted according to needs.

[0077] iii. It can be understood that the cleaning liquid containing assembly described in the present disclosure is not only applicable to self - moving cleaning devices, but can also be applied to other application fields or application scenarios.

Claims

1. A cleaning liquid containing assembly for a self - moving cleaning device, characterized in that, The cleaning liquid containing assembly includes: a housing, within which a containing space for containing the cleaning liquid is formed, and the housing further forms a first supply passage, a second supply passage, a liquid discharge passage, and an exhaust passage; a first one-way valve, which is installed in the housing and located in the first supply passage, and by using the first one-way valve, the cleaning liquid and air can be unidirectionally supplied to the containing space via the first supply passage; a second one-way valve, which is installed in the housing and located in the second supply passage, and by using the second one-way valve, the cleaning liquid and air can be unidirectionally supplied to the containing space via the second supply passage; a third one-way valve, which is installed in the housing and located in the liquid discharge passage, and by using the third one-way valve, the cleaning liquid can be unidirectionally discharged from the containing space via the liquid discharge passage; and a fourth one-way valve, which is installed in the housing and located in the exhaust passage, and by using the fourth one-way valve, the air can be unidirectionally discharged from the containing space via the exhaust passage.

2. The cleaning liquid containing assembly according to claim 1, characterized in that The first one-way valve includes a first valve body, and a first valve cavity is formed inside the first valve body, and the first valve body has two first elastic valve flaps, the two first elastic valve flaps abut against each other in the natural state and can be separated from each other under the action of fluid pressure from the outside, and the two first elastic valve flaps enable the first valve cavity to be controllably communicated with the containing space.

3. The cleaning liquid containing component according to claim 2, characterized in that, The first one-way valve further includes a plurality of sealing ribs, the plurality of sealing ribs are arranged at intervals in the axial direction of the first valve body, each sealing rib protrudes from the outer peripheral surface of the first valve body toward the radially outer side, and each sealing rib continuously extends in the circumferential direction of the first valve body over the entire circumference, and the first valve body is in interference fit with the first supply passage via the plurality of sealing ribs.

4. The cleaning liquid containing assembly according to claim 3, wherein, In the first supply passage, the housing forms an annular protrusion, and a through hole is formed in the annular protrusion, the first one-way valve further includes a limiting rib, the limiting rib protrudes from the outer peripheral surface of the first valve body toward the radially outer side and continuously extends in the circumferential direction of the first valve body over the entire circumference, the outer diameter of the limiting rib is greater than the inner diameter of the through hole, and the limiting rib is positioned on a side farther from the outer opening of the first supply passage than the annular protrusion.

5. The cleaning liquid containing component according to claim 4, characterized in that, The first valve body further has a first axial portion and a second axial portion connected to each other, the outer diameter of the first axial portion is greater than the outer diameter of the second axial portion and greater than the inner diameter of the through hole, the plurality of sealing ribs are arranged on the first axial portion, the limiting rib is arranged on the second axial portion, and the first axial portion and the limiting rib are located on both sides of the annular protrusion.

6. The cleaning liquid containing assembly according to any one of claims 1 to 5, characterized in that, The second one-way valve includes a second valve body, and a second valve cavity is formed inside the second valve body, and the second valve body has two second elastic valve flaps, the two second elastic valve flaps abut against each other in the natural state and can be separated from each other under the action of fluid pressure from the outside, and the two second elastic valve flaps enable the second valve cavity to be controllably communicated with the containing space.

7. The cleaning liquid containing assembly according to claim 6, characterized in that, The second valve body further has an insertion portion and a flange portion, The insertion part has an outer cylinder part, an inner cylinder part, and a connecting part. The inner cylinder part is located radially inside the outer cylinder part, and the inner cylinder part and the outer cylinder part are connected via the connecting part. The outer cylinder part is in interference fit with the housing and is inserted into the second supply passage. The second valve cavity is formed inside the inner cylinder part. The flange part extends radially outward from the outer cylinder part, and the flange part abuts against the outer surface of the housing.

8. The cleaning liquid containing assembly according to any one of claims 1 to 5, characterized in that, The housing has a column that stands up from the bottom of the accommodation space. The exhaust passage is formed inside the column, and the third one-way valve is provided at the top end of the column.

9. The cleaning liquid containing assembly according to claim 8, wherein, The accommodation space includes a first sub-space and a second sub-space located on the left and right sides. A flow passage is formed inside the housing, and the first sub-space and the second sub-space are communicated through the flow passage.

10. A self - moving cleaning device, characterized in that, It includes the cleaning liquid accommodation assembly according to any one of claims 1 to 9.

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