Blow-down valve, base station and cleaning system

Abstract

The utility model provides a blow-down valve, a base station and a cleaning system, and relates to the technical field of cleaning. The blow-down valve comprises a valve body. The valve body is provided with a first connector and a second connector, the first connector is used for being communicated with a drain outlet of the base station body, and the second connector is used for being communicated with a sewer line. A first sealing piece is arranged in the valve body and used for communicating or isolating the first connector and the second connector. An air inlet is formed in the position, close to the first connector, of the valve body, the air inlet is configured to be in a sealed state when the first sealing piece communicates with the first connector and the second connector, and the air inlet can be converted into an open state from the sealed state when the first sealing piece isolates the first connector and the second connector and the valve body is in a negative pressure state; and the first interface is communicated with the outside. According to the blow-down valve, fresh airflow can be provided for the sewage tank of the cleaning equipment in the base station cleaning process, and the problem that airflow of a sewer pipeline enters the cleaning equipment, and consequently peculiar smells are generated or bacteria exist is solved.

Description

[0001] This application claims the priority of the Chinese patent application filed with the China Patent Office on December 22, 2023, with application number 202323526581.6 and application name “Cleaning Equipment and Cleaning Equipment System”, all or part of which is incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of cleaning technology, and in particular to a sewage valve, a base station and a cleaning system. Background Art

[0003] As people's requirements for smart homes increase, various types of smart cleaning devices have appeared on the market, such as sweeping robots, floor scrubbers, etc. These smart cleaning devices are usually equipped with a cleaning base station, which can clean, rehydrate, charge and dry the cleaning equipment.

[0004] The cleaning base station can supply water to the cleaning device. When the airflow generating device in the cleaning device is started and suction is performed, the water and gas in the cleaning base station can be sucked into the sewage tank along the same pipeline. The water can flow around in the sewage tank to clean the sewage tank.

[0005] The sewage generated after cleaning can be discharged into the sewer pipe through the cleaning base station. In the related art, a switch valve is provided at the sewer pipe to discharge the sewage into the sewer pipe. However, the gas sucked by the airflow generating device may also come from the sewer pipe. Since the airflow passing through the sewer pipe may have odor or bacteria, these airflows entering the inside of the floor scrubber will affect the user experience. Utility Model Content

[0006] The present application provides a sewage valve, a base station and a cleaning system, which can solve the problem that the airflow in the sewer pipe enters the cleaning equipment during the cleaning process, causing odor or bacteria, thereby affecting the user experience.

[0007] In a first aspect, the present application provides a sewage valve, which includes a valve body. The valve body has a first interface and a second interface, the first interface is used to communicate with the sewage outlet of the base station body, and the second interface is used to communicate with the sewer pipe. A first sealing member is provided in the valve body, and the first sealing member is used to connect or isolate the first interface and the second interface.

[0008] An air inlet is provided on the valve body near the first interface, and the air inlet is configured to be in a sealed state when the first seal connects the first interface and the second interface, and when the first seal isolates the first interface and the second interface and the valve body is in a negative pressure state, the air inlet can be converted from the sealed state to an open state to connect the first interface with the outside.

[0009] The drain valve provided in the present application can be used to provide the airflow required to form a surge during the cleaning process of the base station by setting an air inlet. In addition, the first interface and the second interface can be isolated by setting a first sealing member, so that the airflow in the sewer pipe connected to the second interface is not easy to enter the base station through the first interface, thereby reducing the possibility that the airflow in the sewer pipe enters the base station through the first interface during the cleaning process of the base station, causing the base station to produce odor or even breed bacteria.

[0010] Among them, when the negative pressure state reaches a certain level, the water flow can surge in the sewage tank under the action of the air flow. Specifically, when the negative pressure state reaches a certain level, the sewage suction port on the cleaning device used to suck the sewage into the sewage tank can form an air flow flowing into the sewage tank, and the water outlet of the sewage tank used to discharge the sewage can also form an air flow flowing into the sewage tank. Therefore, the two air flows can cause part of the water flow to surge in the sewage tank to form a surge. The surging of the water flow in the sewage tank can clean the stains on the inner wall of the sewage tank to achieve a cleaning effect.

[0011] Specifically, during the cleaning process of the base station, the airflow generating device starts to operate. The airflow generating device can form a negative pressure environment in the base station and the valve body is in a negative pressure state. When the pressure in the valve body reaches a threshold value, that is, when the pressure of the external environment is higher than the pressure in the valve body to a certain extent, the air inlet can be opened under the action of the pressure of the external environment, so that the gas from the external environment can enter the valve body through the air inlet and enter the base station through the first interface. Therefore, after the airflow generating device starts to operate, the airflow in the base station can come from the gas from the external environment. Since the gas from the external environment can be the indoor environment where the user lives or the open environment of the balcony, a fresh airflow can be provided for the base station to reduce the possibility of the airflow causing the base station to produce odor or breed bacteria.

[0012] According to one embodiment of the present application, a second seal is provided at the air inlet, and the second seal is used to seal the air inlet when the first interface and the second interface are connected; and is also used to allow external gas to enter the first interface when the first interface and the second interface are isolated and the valve body is in a negative pressure state.

[0013] In the embodiment of the present application, the second sealing member can be used to seal or open the air inlet. Specifically, during the sewage discharge process of the base station, the sewage can flow toward the second interface through the first interface to enter the sewer pipe. During the sewage flow toward the second interface, on the one hand, the second sealing member can be reset under its own elastic action to seal the air inlet, and on the other hand, the gas pressure generated in the valve body during the flow of sewage can also more effectively cause the second sealing member to seal the air inlet.

[0014] According to one embodiment of the present application, the second seal can be deformed to convert between a first form and a second form; wherein, when the base station is discharging sewage, the second seal is in the first form, and the second seal seals the air inlet to isolate the valve body from the outside world; when the valve body is in a negative pressure state, the second seal can be converted from the first form to the second form, and the second seal opens the air inlet to allow external gas to enter the valve body through the air inlet.

[0015] In the embodiment of the present application, the second sealing member can be deformed to seal or open the air inlet. Therefore, no additional structure for controlling the second sealing member to be in the first form or the second form is required at the air inlet. In other words, the sealing or opening of the second sealing member can be based on the deformation of the second sealing member itself, which can help simplify the structure of the drain valve and realize the automation of opening or sealing of the air inlet of the drain valve.

[0016] According to an embodiment of the present application, the second sealing member is a one-way valve, and the direction in which gas passes through the second sealing member is from the outside to the inside of the valve body.

[0017] In the embodiment of the present application, by setting the second sealing member as a one-way valve, the second sealing member can have a single opening direction. Specifically, the gas has a flow direction from the outside into the valve body, and the gas in the valve body cannot flow out to the outside environment through the air inlet. Therefore, during the pressurized sewage discharge process of the base station, it can be avoided that the gas in the valve body causes the second sealing member to open the air inlet, causing part of the gas and sewage to flow out of the air inlet to the outside environment. The gas and sewage in the valve body overflow through the air inlet, causing inconvenience to the user during use and affecting the user experience.

[0018] According to an embodiment of the present application, the second sealing member includes a sealing portion, which is arranged corresponding to the air inlet, and the sealing portion has the first shape and the second shape for sealing or opening the air inlet.

[0019] In the embodiment of the present application, the second sealing member can be switched between the first form and the second form through the sealing portion to seal or open the air inlet. The sealing portion can produce elastic deformation. When the sealing portion is in the first form, the sealing portion can seal the air inlet. When the valve body is in a negative pressure state and the pressure in the valve body reaches a threshold value, the gas in the external environment can exert a force on the sealing portion toward the valve body to move the sealing portion away from the air inlet. At this time, the sealing portion produces elastic deformation to be in the second form, thereby opening the air inlet. When the pressure in the valve body is higher than the threshold value, the force acting on the sealing portion in the direction of the valve body is canceled. At this time, the sealing portion can release the elastic potential energy to reset to the first form, and the sealing portion can seal the air inlet.

[0020] According to one embodiment of the present application, the valve body includes a first tubular structure and a second tubular structure that are connected to each other, the first interface is arranged on the first tubular structure, and the second interface is arranged on the second tubular structure; the valve body includes a third tubular structure, the third tubular structure is connected to the first tubular structure and the second tubular structure, and the air inlet is provided on the third tubular structure.

[0021] In the embodiment of the present application, during the sewage discharge process, sewage can flow from the first tubular structure into the second tubular structure and be discharged into the sewer pipe through the second tubular structure. During the base station cleaning process, when the valve body is in a negative pressure state and the pressure inside the valve body reaches a threshold, external gas can enter the third tubular structure through the air inlet and enter the base station through the first tubular structure.

[0022] According to one embodiment of the present application, the third tubular structure is detachably connected to the first tubular structure, and the third tubular structure is detachably connected to the second tubular structure.

[0023] In the embodiment of the present application, the first tubular structure, the second tubular structure and the third tubular structure may be detachably connected. Therefore, when the user installs the base station, the drain valve of the embodiment of the present application can be connected to the sewer pipe. Alternatively, when the user adds a base station on the basis of the original equipment such as a washing machine and a wash basin, the user can connect the third tubular structure to the installation port of the existing drain valve, and connect the first tubular structure to the third tubular structure to form the drain valve in the embodiment of the present application, so that the user does not need to replace the entire drain valve, which is beneficial to reduce the use cost for the user and improve the user experience. In addition, it can also facilitate the installation of the base station, which is beneficial to improve the convenience of installation.

[0024] According to an embodiment of the present application, the third tubular structure is provided with an opening, and the opening extends outward to form a fourth tubular structure; the sewage valve includes a cover body, the air inlet is provided on the cover body, and the second sealing member is arranged on the cover body.

[0025] In the embodiment of the present application, the gas from the external environment can enter the fourth tubular structure through the air inlet, and then enter the base station through the third tubular structure and the first tubular structure.

[0026] According to an embodiment of the present application, the cover body and the fourth tubular structure are respectively provided with a first clamping portion and a second clamping portion for connection.

[0027] In the embodiment of the present application, the cover body and the fourth tubular structure can be connected through the first clamping portion and the second clamping portion, so that the cover body can be quickly installed on the fourth tubular structure.

[0028] According to an embodiment of the present application, the first sealing member includes a first flexible body and a first rigid body, the first flexible body is used to isolate the first interface and the second interface, and the first rigid body is disposed on the first flexible body to support the first flexible body.

[0029] In the embodiment of the present application, the first flexible body can produce elastic deformation, so that during the sewage discharge process, the sewage can easily push the first sealing member open, so that the first interface and the second interface are connected, and the sewage can be discharged into the sewer pipe. Since the first flexible body can produce elastic deformation, when the sewage discharge stops, the first flexible body can be reset to isolate the first interface and the second interface.

[0030] The first rigid body can have the function of supporting the first flexible body. Since the first flexible body is prone to elastic deformation, when the first flexible body is reset, the outer contour of the first flexible body is prone to deformation and is difficult to fit with the inner wall of the valve body, thereby affecting the sealing effect of the first sealing member. Therefore, by setting the first rigid body, the area of ​​the first flexible body close to the inner wall of the valve body can be supported, so that the outer contour of the first flexible body can fit with the inner wall of the valve body, thereby improving the sealing effect of the first sealing member.

[0031] Furthermore, the first rigid body can also be used to increase the deadweight of the first flexible body, so that when the sewage is stopped, the first seal can be reset under the action of its own gravity to isolate the first interface from the second interface. It should be noted that during the cleaning process of the base station, when the valve body is in a negative pressure state and the pressure in the valve body reaches a threshold, the pressure in the second tubular structure is greater than the pressure in the third tubular structure, and the airflow in the second tubular structure can keep the first seal in a closed state to isolate the first interface from the second interface.

[0032] According to an embodiment of the present application, the first sealing member is a one-way valve. During the sewage discharge process, sewage can flow from the first interface to the second interface. When the sewage discharge stops, the first sealing member is in a state of isolating the first interface from the second interface.

[0033] According to one embodiment of the present application, the valve body has at least one preset interface, one end of which is connected to the sewer pipe, and a third seal is provided in the valve body, and the third seal is used to connect or isolate at least one of the preset interface and the sewer pipe.

[0034] In the embodiment of the present application, by setting a preset interface, various application scenarios of the sewage valve can be realized to meet the sewage discharge needs of people in daily life. For example, when the base station shares a sewer pipe with multiple devices such as a washbasin and a washing machine, the base station can be connected to the first interface, and multiple devices such as the washbasin and the floor scrubber can be connected to the preset interface.

[0035] According to one embodiment of the present application, the first flexible body may have a first fixed end and a first free end. The first fixed end may be located on the first flexible body. The first fixed end may be used to connect to the inner wall of the valve body. The first free end may be deflected relative to the first fixed end. When the first sealing member is in a free state, the first free end is connected to the inner wall of the valve body to isolate the first interface from the second interface. During the sewage discharge process, the sewage may cause the first free end to deflect relative to the first fixed end, so that the first free end may not be connected to the inner wall of the valve body, and the first interface and the second interface are connected.

[0036] According to an embodiment of the present application, along the thickness direction of the first flexible body, a first rigid body may be provided on at least one side of the first flexible body. For example, the first rigid body may be provided on the side of the first flexible body facing the first interface, or the first rigid body may be provided on the side of the first flexible body facing away from the first interface. Furthermore, the first rigid body may be provided on both sides of the first flexible body.

[0037] According to an embodiment of the present application, when a first rigid body is provided on both sides of the first flexible body, a first through hole may be provided on the first flexible body. A portion of one of the first rigid bodies may be located in the first through hole, and a portion of the other first rigid body may also be located in the first through hole. The portions of the two first rigid bodies located in the first through holes may be connected to each other to fix the two first rigid bodies to the first flexible body.

[0038] According to an embodiment of the present application, a first protrusion may be provided on one of the first rigid bodies, and a first groove may be provided on the other first rigid body. The first protrusion may be cooperatively connected with the first groove so that the two first rigid bodies can be stably connected.

[0039] According to one embodiment of the present application, the structure of the third seal may be the same as or similar to that of the first seal. The third seal may include a second flexible body and a second rigid body. The second flexible body may be used to isolate the preset interface and the second interface. The second rigid body may be disposed on the second flexible body to support the second flexible body.

[0040] According to one embodiment of the present application, the third sealing member is a one-way valve. During the sewage discharge process, sewage can flow from the preset interface to the second interface. When the sewage discharge is stopped, the third sealing member can be in a state of isolating the first interface and the second interface.

[0041] According to an embodiment of the present application, when the third seal is in a free state, the second free end and the second fixed end may not be on the same plane. The second free end may be bent toward one side of the preset opening to facilitate elastic reset of the second free end when the preset interface stops draining.

[0042] In a second aspect, the present application provides a base station, which may include a base station body and a sewage valve in any of the above embodiments. The base station body may be provided with a sewage outlet. The sewage outlet may be connected to a sewer pipe through a sewage valve to discharge sewage into the sewer pipe.

[0043] In an embodiment of the present application, the sewage outlet on the base station body can be connected to the first tubular structure of the sewage valve through a sewage pipe, so that sewage can pass through the sewage pipe from the sewage outlet and enter the sewage valve through the first interface, and finally the sewage can be discharged into the sewer pipe through the second interface of the sewage valve.

[0044] In a third aspect, the present application provides a cleaning system, the cleaning system comprising the base station and a cleaning device in the above embodiment. The cleaning device can be placed in the base station.

[0045] In an embodiment of the present application, the base station and the cleaning equipment can be used in combination. Alternatively, the two can also be used separately as independent products. When the base station and the cleaning equipment are used in combination, the airflow generating device can be located in the base station. The sewage generated by the cleaning equipment after cleaning can enter the drain valve through the drain pipe of the base station and be discharged into the sewer pipe. When the base station is cleaned, the airflow generating device is started to put the valve body in a negative pressure state. When the negative pressure state reaches the threshold, external gas can enter through the air inlet of the drain valve to form a surge to provide airflow during the cleaning process. A fresh airflow can be provided for the surge through the air inlet, thereby reducing the possibility of the airflow causing the base station to produce odor and breed bacteria.

[0046] In addition to the technical problems solved by the embodiments of the utility model described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the sewage valve, base station and cleaning system provided by the embodiments of the utility model, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods.

[0047] The beneficial effect of the sewage valve provided by the present application is that by arranging an air inlet on the valve body, the clean airflow required to form a surge can be provided for the sewage tank of the cleaning equipment. The air inlet can be connected to the external environment. Therefore, after the airflow generating device is started and operated, the airflow in the base station can come from the gas in the external environment. Since the gas in the external environment can be the indoor environment where the user lives or the open environment of the balcony, a fresh airflow can be provided to the base station to reduce the possibility that the airflow causes the base station to produce odor or breed bacteria. In addition, the first sealing member can isolate the airflow of the sewer pipe, so that the airflow with odor and easy to have bacteria in the sewer pipe is not easy to enter the base station, thereby reducing the possibility that the airflow in the sewer pipe causes the base station to produce odor or even breed bacteria.

[0048] Furthermore, the second sealing member may be a one-way valve. Therefore, during the sewage discharge process of the base station, sewage can flow toward the second interface through the first interface to enter the sewer pipe. During the sewage flow toward the second interface, on the one hand, the second sealing member can be reset under its own elastic action to seal the air inlet, and on the other hand, the gas pressure generated in the valve body during the sewage flow process can also more effectively cause the second sealing member to seal the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0050] Figure 1 This is a schematic diagram of the three-dimensional structure of a sewage valve according to an embodiment of the present application;

[0051] Figure 2 This is a schematic cross-sectional view of a sewage valve according to an embodiment of the present application;

[0052] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0053] Figure 4 This is a schematic diagram of the exploded structure of a sewage valve according to an embodiment of the present application;

[0054] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0055] Figure 6 This is a schematic diagram of the three-dimensional structure of a first sealing member according to an embodiment of the present application;

[0056] Figure 7 Another schematic diagram of the three-dimensional structure of the first sealing member according to an embodiment of the present application;

[0057] Figure 8This is a schematic diagram of the exploded structure of a first sealing member according to an embodiment of the present application;

[0058] Fig. 9 This is a schematic cross-sectional structural diagram of a first sealing member according to an embodiment of the present application;

[0059] Fig.10 This is a schematic cross-sectional structural diagram of a third sealing member according to an embodiment of the present application;

[0060] Fig.11 A schematic diagram of the three-dimensional structure of a base station according to an embodiment of the present application;

[0061] Fig.12 It is a schematic diagram of the three-dimensional structure of a cleaning system according to an embodiment of the present application.

[0062] Description of reference numerals:

[0063] 10- Base station;

[0064] 100-drain valve;

[0065] 110-valve body; 110a-first interface; 110b-second interface;

[0066] 110c-air inlet; 110d-preset interface; 111-first tubular structure;

[0067] 1111-first hook; 112-second tubular structure; 1121-second hook;

[0068] 113-third tubular structure; 113a-opening; 1131-third hook;

[0069] 1132- fourth hook; 114- fourth tubular structure; 1141- second engaging portion;

[0070] 115-fifth tubular structure; 1151-fifth hook; 116-sixth tubular structure;

[0071] 1161-sixth hook; 120-first sealing member; 120a-first fixing end;

[0072] 120b-first free end; 121-first flexible body; 121a-first through hole;

[0073] 121b-first receiving groove; 122-first rigid body; 122a-first groove;

[0074] 122b-first protrusion; 130-second sealing member; 131-sealing portion;

[0075] 132-mounting portion; 140-cover body; 140a-assembly hole;

[0076] 141-first engaging portion; 150-third sealing member; 150a-second fixing end;

[0077] 150b - second free end; 151 - second flexible body; 151a - second through hole;

[0078] 151b-second receiving groove; 152-second rigid body; 152a-second groove;

[0079] 152b-second protrusion; 200-base station body; 200a-drainage outlet;

[0080] 210- sewage pipe; 20- cleaning equipment.

[0081] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0082] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0083] In people's daily lives, a large amount of sewage is discharged. For example, the wash basins, washing machines, dishwashers, floor scrubbers and other equipment used in people's daily lives will generate sewage during use. Sewage can flow into the sewer pipe through appropriate connecting pipes to discharge the sewage into the sewage pipe system or the sewage pipe system.

[0084] A valve is usually provided between the connecting pipe and the sewer pipe. The valve is a control component in the pipeline fluid delivery system. The valve can have functions such as opening and closing, diversion, throttling, non-return, diversion or overflow pressure relief according to its own structure. Specifically, when the valve is opened, the sewage in the connecting pipe can enter the sewer pipe through the valve.

[0085] The present application provides a sewage valve arranged at a sewer pipe. Domestic sewage can be discharged into the sewer pipe through the sewage valve. The present application mainly uses the sewage coming from a base station of a cleaning system as an example for explanation.

[0086] The base station can be used to clean, refill, charge and dry the cleaning equipment. The cleaning base station can supply water to the cleaning equipment. When the airflow generating device in the cleaning equipment starts to operate and performs suction, the water and gas in the cleaning base station can be sucked into the sewage tank along the same pipeline. The water can flow around in the sewage tank to clean the sewage tank.

[0087] The sewage generated after cleaning can be discharged into the sewer pipe through the cleaning base station. In the related art, a switch valve is provided at the sewer pipe to discharge the sewage into the sewer pipe. However, the gas sucked by the airflow generating device may also come from the sewer pipe. Since the airflow passing through the sewer pipe may have odor or bacteria, the airflow entering the base station may easily cause odor or bacteria to grow in the base station, affecting the user experience.

[0088] Based on the above technical problems, the applicant has improved the structure of the existing drain valve. In the embodiment of the present application, an air inlet may be provided on the drain valve. During the cleaning process of the floor scrubber, the airflow generated by the airflow generating device may be the gas in the external environment provided by the air inlet, and the first seal may isolate the airflow in the sewer pipe, so that the airflow in the sewer pipe with odor and prone to bacteria is not easy to enter the base station, thereby reducing the possibility that the airflow in the sewer pipe causes the base station to produce odor or even breed bacteria.

[0089] The sewage valve 100, the base station 10 and the cleaning system provided by the present application are described below with reference to the accompanying drawings and in combination with specific embodiments.

[0090] See also Figures 1 to 3 As shown, the sewage valve 100 of the embodiment of the present application includes a valve body 110. The valve body 110 has a first interface 110a and a second interface 110b. The first interface 110a can be used to communicate with the sewage outlet 200a of the base station body 200, and the second interface 110b can be used to communicate with the sewer pipe. A first sealing member 120 can be provided in the valve body 110. The first sealing member 120 can be used to connect or isolate the first interface 110a and the second interface 110b.

[0091] The valve body 110 may be provided with an air inlet 110c near the first interface 110a. The air inlet 110c may be configured to be in a sealed state when the first sealing member 120 is in communication with the first interface 110a and the second interface 110b, and when the first sealing member 120 isolates the first interface 110a and the second interface 110b and the valve body 110 is in a negative pressure state, the air inlet 110c may be converted from a sealed state to an open state, so that the first interface 110a is in communication with the outside.

[0092] In the embodiment of the present application, the air inlet 110c can be provided to provide the airflow required for forming a surge during the cleaning process of the base station 10. In addition, the first seal 120 can be provided to isolate the first interface 110a and the second interface 110b, so that the airflow in the sewer pipe connected to the second interface 110b is not easy to enter the base station 10 through the first interface 110a, thereby reducing the possibility that the airflow in the sewer pipe enters the base station 10 through the first interface 110a during the cleaning process of the base station 10, causing the base station 10 to produce odor or even breed bacteria.

[0093] When the negative pressure reaches a certain level, water can surge in the sewage tank. Specifically, when the negative pressure reaches a certain level, the sewage suction port on the cleaning device 20 for sucking sewage into the sewage tank can form an airflow flowing into the sewage tank, and the water outlet of the sewage tank for discharging sewage can also form an airflow flowing into the sewage tank. Therefore, the two airflows can cause part of the water to surge in the sewage tank to form a surge. The surging of water in the sewage tank can clean the stains on the inner wall of the sewage tank to achieve a cleaning effect.

[0094] Specifically, during the cleaning process of the base station 10, the airflow generating device starts to operate. The airflow generating device can form a negative pressure environment in the base station 10 and the valve body 110 is in a negative pressure state. When the pressure in the valve body 110 reaches a threshold value, that is, when the pressure of the external environment is higher than the pressure in the valve body 110 to a certain extent, the air inlet 110c can be opened under the force of the pressure of the external environment, so that the gas in the external environment can enter the valve body 110 through the air inlet 110c, and enter the base station 10 through the first interface 110a. Therefore, after the airflow generating device starts to operate, the airflow in the base station 10 can come from the gas in the external environment. Since the gas in the external environment can be the indoor environment where the user lives or the open environment of the balcony, a fresh airflow can be provided for the base station 10 to reduce the possibility of the airflow causing the base station 10 to produce odor or breed bacteria.

[0095] It should be noted that when a negative pressure environment is formed in the base station 10, the first seal 120 can maintain a sealed state with the valve body 110 so that the second interface 110b and the first interface 110a are not connected, thereby blocking the airflow in the sewer pipe from entering the first interface 110a.

[0096] In some examples, the threshold value of the pressure at which the valve body 110 is in a negative pressure state may be in the range of 0.7 kPa-1.31 kPa. For example, when the pressure difference between the pressure inside the valve body 110 and the outside atmosphere reaches 0.7 kPa, the outside gas may enter the valve body 110 through the air inlet 110 c under the action of the atmospheric pressure, and enter the base station 10 through the first interface 110 a, and finally enter the sewage tank of the cleaning device 20 along the pipeline.

[0097] Exemplarily, when the pressure difference between the air pressure of the external environment and the air pressure in the valve body 110 is greater than or equal to 1 KPa, external air can enter the valve body 110 through the air inlet 110 c.

[0098] In some possible implementations, see Figure 2 As shown, a second sealing member 130 may be provided at the air inlet 110c of the embodiment of the present application. The second sealing member 130 may be used to seal the air inlet 110c when the first interface 110a and the second interface 110b are connected, and may also be used to allow external gas to enter the first interface 110a when the first interface 110a and the second interface 110b are isolated and the valve body 110 is in a negative pressure state.

[0099] In the embodiment of the present application, the second sealing member 130 can be provided to seal or open the air inlet 110c. Specifically, during the sewage discharge process of the base station 10, the sewage can flow toward the second interface 110b through the first interface 110a to enter the sewer pipe. During the sewage flow toward the second interface 110b, on the one hand, the second sealing member 130 can be reset under its own elastic action to seal the air inlet 110c, and on the other hand, the gas pressure generated in the valve body 110 during the sewage flow process can also more effectively cause the second sealing member 130 to seal the air inlet 110c.

[0100] In some examples, the sewage can be pressurized in the base station 10 to help quickly discharge the sewage in the sewage tank through the sewage outlet 200a, which can be beneficial to reduce the residual stains in the sewage tank and can greatly improve the sewage cleaning effect of the sewage tank.

[0101] In some achievable embodiments, the second sealing member 130 according to the embodiment of the present application may be deformed to switch between a first form and a second form.

[0102] When the base station 10 is discharging waste, the second sealing member 130 may be in the first state, and at this time, the second sealing member 130 may seal the air inlet 110c to isolate the valve body 110 from the outside. When the valve body 110 is in a negative pressure state, the second sealing member 130 may be converted from the first state to the second state. At this time, the second sealing member 130 may open the air inlet 110c to allow external gas to enter the valve body 110 through the air inlet 110c.

[0103] In the embodiment of the present application, the second sealing member 130 can be deformed to seal or open the air inlet 110c. Therefore, no additional structure for controlling the second sealing member 130 to be in the first form or the second form is required at the air inlet 110c. In other words, the sealing or opening of the second sealing member 130 can be based on the deformation of the second sealing member 130 itself, thereby simplifying the structure of the drain valve 100 and realizing the automation of opening or sealing the air inlet 110c of the drain valve 100.

[0104] In some examples, during the sewage discharge process of the base station 10, especially when high-pressure sewage discharge is performed, the sewage may have a relatively large pressure to flow in the direction of the second interface 110b. At this time, the pressure in the valve body 110 may exert a force on the second sealing member 130, so that the second sealing member 130 may tightly seal the air inlet 110c. When the base station 10 is cleaned, the valve body 110 is in a negative pressure state. When the pressure in the valve body 110 reaches a threshold value, the gas in the external environment may exert a force on the second sealing member 130 in the direction of the valve body 110, so that the second sealing member 130 may move away from the air inlet 110c, thereby opening the air inlet 110c, and the external gas may enter the valve body 110 through the air inlet 110c, and provide airflow for the formation of a surge in the sewage tank.

[0105] In some achievable ways, the second sealing member 130 of the embodiment of the present application may be a one-way valve. The direction of gas passing through the second sealing member 130 is from the outside to the inside of the valve body 110 .

[0106] In the embodiment of the present application, by setting the second sealing member 130 as a one-way valve, the second sealing member 130 can have a single opening direction. Specifically, the gas has a flow direction from the outside into the valve body 110, and the gas in the valve body 110 cannot flow out to the outside environment through the air inlet 110c. Therefore, it can be avoided that during the pressurized sewage discharge process of the base station 10, the gas in the valve body 110 causes the second sealing member 130 to open the air inlet 110c, causing part of the sewage to flow out of the air inlet 110c to the outside environment. The gas and sewage in the valve body 110 overflow through the air inlet 110c, causing inconvenience to the user during use and affecting the user experience.

[0107] Among them, by setting the second sealing member 130 as a one-way valve, when the base station 10 is cleaned so that the pressure in the valve body 110 reaches a threshold value, the second sealing member 130 can open the air inlet 110c under the action of external gas, so that the external gas enters the valve body 110 through the air inlet 110c. During the sewage discharge process of the base station 10, the pressure generated by the sewage can cause the gas in the valve body 110 to exert a force on the second sealing member 130 toward the external environment outside the valve body 110. At this time, the second sealing member 130 is in a closed state to seal the air inlet 110c.

[0108] It should be noted that when the airflow generating device is not in operation, the pressure inside the valve body 110 may be close to the pressure of the external environment, or when the valve body 110 is in a negative pressure state but has not reached a threshold, the second sealing member 130 may be in a state of sealing the air inlet 110c.

[0109] In some possible implementations, see Figure 2 and Figure 3 As shown, the second sealing member 130 of the embodiment of the present application may include a sealing portion 131. The sealing portion 131 may be arranged corresponding to the air inlet 110c. The sealing portion 131 may have a first shape and a second shape, so as to seal or open the air inlet 110c.

[0110] In the embodiment of the present application, the second sealing member 130 can be switched between a first state and a second state through the sealing portion 131 to seal or open the air inlet 110 c.

[0111] In some examples, the sealing portion 131 can produce elastic deformation. When the sealing portion 131 is in the first form, the sealing portion 131 can seal the air inlet 110c. When the valve body 110 is in a negative pressure state and the pressure in the valve body 110 reaches a threshold value, the gas in the external environment can exert a force on the sealing portion 131 toward the inside of the valve body 110, so that the sealing portion 131 moves in a direction away from the air inlet 110c. At this time, the sealing portion 131 produces elastic deformation to be in the second form, so that the air inlet 110c can be opened. When the pressure in the valve body 110 is higher than the threshold value, the force acting on the sealing portion 131 in the direction of the valve body 110 is canceled. At this time, the sealing portion 131 can release the elastic potential energy to reset to the first form, and the sealing portion 131 can seal the air inlet 110c.

[0112] It should be noted that during the sewage discharge process of the base station 10, the pressure in the valve body 110 is relatively high. Therefore, the pressure in the valve body 110 can promote the sealing part 131 to reset to the first form, and can keep the sealing part 131 in the first form to improve the sealing effect of the sealing part 131 on the air inlet 110c.

[0113] Exemplarily, the sealing portion 131 may be, but is not limited to, a rubber member, a silicone member, or the like.

[0114] For some examples, see Figure 3 As shown, the sealing portion 131 may have a curved surface. Along the direction in which the external gas enters the valve body 110 through the air inlet 110c, the orthographic projection of the air inlet 110c may be located inside the orthographic projection of the sealing portion 131. When the sealing portion 131 is in a first form, the curved surface may form a recess toward the air inlet 110c. The outer contour of the curved surface may seal the air inlet 110c to block the external gas. When the sealing portion 131 is deformed to be in a second form, the curved surface may flip to form a recess toward the inside of the valve body 110, at which time, the outer contour of the sealing portion 131 may move away from the air inlet 110c to open the air inlet 110c. After passing through the air inlet 110c, the external gas may continue to flow into the valve body 110 along the curved surface.

[0115] In some possible implementations, see Figure 1 and Figure 4 As shown, the valve body 110 of the embodiment of the present application may include a first tubular structure 111 and a second tubular structure 112 that are connected. The first interface 110a may be disposed on the first tubular structure 111. The second interface 110b may be disposed on the second tubular structure 112.

[0116] The valve body 110 may include a third tubular structure 113. The third tubular structure 113 is in communication with the first tubular structure 111 and the second tubular structure 112. The third tubular structure 113 is provided with an air inlet 110c.

[0117] In the embodiment of the present application, during the sewage discharge process, sewage can flow from the first tubular structure 111 into the second tubular structure 112, and be discharged into the sewer pipe through the second tubular structure 112. During the cleaning process of the base station 10, when the valve body 110 is in a negative pressure state and the pressure inside the valve body 110 reaches a threshold, external gas can enter the third tubular structure 113 through the air inlet 110c, and enter the base station 10 through the first tubular structure 111.

[0118] In some examples, reference Figure 2 In the direction shown, the center line of the second tubular structure 112 can be arranged in the vertical direction. The second interface 110b can be oriented downward so that the sewage in the second tubular structure 112 can flow into the sewer pipe under the action of gravity to increase the rate of sewage discharge. The center lines of the first tubular structure 111 and the third tubular structure 113 can be perpendicular to each other, and the center lines of the first tubular structure 111 and the third tubular structure 113 can intersect with the center line of the second tubular structure 112.

[0119] In some possible implementations, see Figure 4As shown, the third tubular structure 113 of the embodiment of the present application is detachably connected to the first tubular structure 111 , and the third tubular structure 113 is detachably connected to the second tubular structure 112 .

[0120] In the embodiment of the present application, the first tubular structure 111, the second tubular structure 112 and the third tubular structure 113 may be detachably connected. Therefore, when the user installs the base station 10, the sewage pipe can be connected through the sewage valve 100 of the embodiment of the present application. Alternatively, when the user adds a base station 10 on the basis of existing equipment such as a washing machine and a wash basin, the user can connect the third tubular structure 113 to the installation port of the existing sewage valve, and connect the first tubular structure 111 to the third tubular structure 113 to form the sewage valve 100 in the embodiment of the present application, so that the user does not need to replace the entire sewage valve 100, which is beneficial to reduce the use cost for the user and improve the user experience. In addition, it can also facilitate the installation of the base station 10, which is beneficial to improve the convenience of installation.

[0121] In some examples, the first seal 120 may be disposed on an inner wall of the second tubular structure 112 .

[0122] In some examples, the detachable connection between the third tubular structure 113 and the first tubular structure 111 and the second tubular structure 112 may be, but is not limited to, a snap-fit ​​connection.

[0123] For example, see Figure 4 As shown, the first tubular structure 111 may be provided with a first hook 1111, and the second tubular structure 112 may be provided with a second hook 1121. The third tubular structure 113 may be provided with a third hook 1131 for interlocking with the first hook 1111, so that the first tubular structure 111 and the third tubular structure 113 are firmly connected. Similarly, the third tubular structure 113 may also be provided with a fourth hook 1132, and the fourth hook 1132 may be used to interlock with the second hook 1121 on the second tubular structure 112, so that the second tubular structure 112 and the third tubular structure 113 are firmly connected.

[0124] In some possible implementations, see Figure 2 and Figure 3 As shown, the third tubular structure 113 of the embodiment of the present application may be provided with an opening 113a. The opening 113a of the third tubular structure 113 may extend toward the external environment to form a fourth tubular structure 114. The drain valve 100 may include a cover 140. The cover 140 may be provided with an air inlet 110c. The second sealing member 130 may be provided on the cover 140.

[0125] In the embodiment of the present application, gas from the external environment can enter the fourth tubular structure 114 through the air inlet 110 c and then enter the base station 10 through the third tubular structure 113 and the first tubular structure 111 .

[0126] In some examples, the fourth tubular structure 114 may be disposed at the opening 113 a of the third tubular structure 113 and extend upward in a vertical direction.

[0127] Therefore, during the sewage discharge process of the base station 10, it is not easy for the sewage to enter the fourth tubular structure 114 under the action of gravity when it flows through the third tubular structure 113, so that when the base station 10 stops discharging sewage and the pressure in the valve body 110 reaches the threshold, some sewage is not easy to accumulate in the fourth tubular structure 114, which is conducive to reducing the possibility that the sewage exerts a force toward the outside world on the second sealing member 130 under the action of gravity, making it difficult for the external gas to push open the sealing portion 131 of the second sealing member 130, affecting the opening of the air inlet 110c. In addition, it can also reduce the possibility that the sewage contacts the second sealing member 130, resulting in stains remaining on the second sealing member 130, and the stains corrode the second sealing member 130, thereby affecting the sealing effect and service life of the second sealing member 130.

[0128] In some examples, the cover 140 can be disposed at the end of the fourth tubular structure 114 away from the third tubular structure 113. When the sealing portion 131 of the second sealing member 130 is in the first form, the arc surface of the sealing portion 131 can form a recess facing the air inlet 110c. The outer contour of the arc surface of the sealing portion 131 can fit tightly with the inner surface of the cover 140 to seal the air inlet 110c. When the mounting portion 132 of the second sealing member 130 is in the second form under the action of external gas, the arc surface of the sealing portion 131 can be turned over to form a recess facing the inside of the valve body 110, and at this time, the outer contour of the arc surface of the sealing portion 131 can be separated from the inner surface of the cover 140 to open the air inlet 110c.

[0129] For some examples, see Figure 4 and Figure 5 As shown, the center of the cover 140 may be provided with an assembly hole 140a. The second sealing member 130 may include a mounting portion 132 connected to the sealing portion 131. The mounting portion 132 is connected to the assembly hole 140a so that the second sealing member 130 can be fixed to the cover 140.

[0130] Exemplarily, a plurality of air inlet holes may be provided on the cover body 140. The plurality of air inlet holes may be distributed at intervals along the circumference of the assembly hole 140a. The mounting portion 132 may be inserted into the mounting hole of the cover body 140. Along the axial direction of the mounting hole, the orthographic projections of the air inlet holes may all be located inside the orthographic projection of the sealing portion 131.

[0131] In some examples, the shape of the air inlet 110 c may be, but is not limited to, fan-shaped, circular, square, etc.

[0132] In some examples, the third tubular structure 113 and the fourth tubular structure 114 may be an integrally formed structure.

[0133] In some possible implementations, see Figure 4 and Figure 5 As shown, the cover body 140 and the fourth tubular structure 114 may be respectively provided with a first engaging portion 141 and a second engaging portion 1141 for connection.

[0134] In the embodiment of the present application, the cover body 140 and the fourth tubular structure 114 can be connected via the first engaging portion 141 and the second engaging portion 1141 , so that the cover body 140 can be quickly installed on the fourth tubular structure 114 .

[0135] In some possible implementations, see Figure 4 and Figure 6 As shown, the first seal 120 of the embodiment of the present application may include a first flexible body 121 and a first rigid body 122. The first flexible body 121 may be used to isolate the first interface 110a and the second interface 110b. The first rigid body 122 may be disposed on the first flexible body 121 to support the first flexible body 121.

[0136] It should be noted that the first sealing member 120 in the embodiment of the present application is a one-way valve. During the sewage discharge process, sewage can flow from the first interface 110a to the second interface 110b. When the sewage discharge stops, the first sealing member 120 is in a state of isolating the first interface 110a and the second interface 110b.

[0137] In the embodiment of the present application, the first flexible body 121 can generate elastic deformation, so that during the sewage discharge process, the sewage can easily push the first sealing member 120 to connect the first interface 110a and the second interface 110b, and the sewage can be discharged into the sewer pipe. Since the first flexible body 121 can generate elastic deformation, when the sewage discharge stops, the first flexible body 121 can be reset to isolate the first interface 110a and the second interface 110b.

[0138] In the embodiment of the present application, the first rigid body 122 can have the function of supporting the first flexible body 121. Since the first flexible body 121 is prone to elastic deformation, when the first flexible body 121 is reset, the outer contour of the first flexible body 121 is prone to deformation and is difficult to fit with the inner wall of the valve body 110, thereby affecting the sealing effect of the first sealing member 120. Therefore, by providing the first rigid body 122, the area of ​​the first flexible body 121 close to the inner wall of the valve body 110 can be supported, so that the outer contour of the first flexible body 121 can fit with the inner wall of the valve body 110, thereby improving the sealing effect of the first sealing member 120.

[0139] Furthermore, the first rigid body 122 can also be used to increase the deadweight of the first flexible body 121, so that when the sewage is stopped, the first sealing member 120 can be reset under the action of its own gravity to isolate the first interface 110a and the second interface 110b. It should be noted that during the cleaning process of the base station 10, when the valve body 110 is in a negative pressure state and the pressure in the valve body 110 reaches a threshold, the pressure in the second tubular structure 112 is greater than the pressure in the third tubular structure 113, and the airflow in the second tubular structure 112 can keep the first sealing member 120 in a closed state to isolate the first interface 110a and the second interface 110b.

[0140] For some examples, see Figure 6 As shown, the first flexible body 121 may have a first fixed end 120a and a first free end 120b. The first fixed end 120a may be located on the first flexible body 121. The first fixed end 120a may be used to be connected to the inner wall of the valve body 110. The first free end 120b may be deflected relative to the first fixed end 120a. When the first sealing member 120 is in a free state, the first free end 120b is connected to the inner wall of the valve body 110 to isolate the first interface 110a and the second interface 110b. During the sewage discharge process, the sewage may cause the first free end 120b to be deflected relative to the first fixed end 120a, so that the first free end 120b may not be connected to the inner wall of the valve body 110, and the first interface 110a and the second interface 110b are connected.

[0141] In some examples, the first fixing end 120 a may be a columnar structure and may be plugged into an inner wall of the valve body 110 .

[0142] In some possible implementations, see Figures 6 to 9As shown, along the thickness direction of the first flexible body 121, a first rigid body 122 may be provided on at least one side of the first flexible body 121. For example, the first rigid body 122 may be provided on the side of the first flexible body 121 facing the first interface 110a, or the first rigid body 122 may be provided on the side of the first flexible body 121 facing away from the first interface 110a. Furthermore, the first rigid body 122 may be provided on both sides of the first flexible body 121.

[0143] The first rigid body 122 of the embodiment of the present application may be fixed to the first flexible body 121 by, but not limited to, bonding, crimping, or a detachable connection.

[0144] For some examples, see Figure 8 and Fig. 9 As shown, when the first rigid bodies 122 are disposed on both sides of the first flexible body 121, a first through hole 121a may be provided on the first flexible body 121. A portion of one of the first rigid bodies 122 may be located in the first through hole 121a, and a portion of the other first rigid body 122 may also be located in the first through hole 121a. The portions of the two first rigid bodies 122 located in the first through holes 121a may be connected to each other, so as to fix the two first rigid bodies 122 to the first flexible body 121.

[0145] For example, one of the first rigid bodies 122 may be provided with a first protrusion 122b, and the other first rigid body 122 may be provided with a first groove 122a. The first protrusion 122b may be matched and connected with the first groove 122a, so that the two first rigid bodies 122 may be stably connected.

[0146] A tooth-like structure may be protruded from the surface of the first rigid body 122 connected to the first flexible body 121 , so as to be tightly connected to the first flexible body 121 .

[0147] In some examples, a first receiving groove 121 b for receiving a portion of the first rigid body 122 may be provided on at least one side surface of the first flexible body 121 , so as to reduce the overall thickness of the first sealing member 120 .

[0148] In some examples, the first rigid body 122 may be, but is not limited to, a plate-like structure, a mesh structure, an annular structure, etc., which are not limited in this embodiment. The outer contour of the first rigid body 122 may be a circle, a polygon, or a shape formed by a straight line and a curve, which are not limited in this embodiment.

[0149] In some possible implementations, see Figure 1 and Figure 2As shown, the valve body 110 of the embodiment of the present application may have at least one preset interface 110d. One end of the preset interface 110d may be connected to a sewer pipe. A third sealing member 150 may be provided in the valve body 110. The third sealing member 150 may be used to connect or isolate at least one preset interface 110d and a sewer pipe.

[0150] In the embodiment of the present application, by setting the preset interface 110d, various application scenarios of the sewage valve 100 can be realized to meet the sewage discharge needs of people in daily life. For example, when the base station 10 shares a sewer pipe with multiple devices such as a washbasin and a washing machine, the base station 10 can be connected to the first interface 110a, and multiple devices such as a washbasin and a floor scrubber can be connected to the preset interface 110d.

[0151] The number of the preset interfaces 110d may be, but is not limited to, one, two or even more. One preset interface 110d may correspond to one device, or multiple devices may be connected to one preset interface 110d through one connecting pipe, which is not limited in the embodiment of the present application.

[0152] Exemplarily, the number of the preset interfaces 110d can be multiple, so as to prepare for the subsequent addition of other devices. When the preset interface 110d is not connected to a device, it can be covered with a sealing cover.

[0153] In the embodiment of the present application, the third seal 150 can be used to connect or isolate all preset interfaces 110d from the second interface 110b. Alternatively, the third seal 150 can match the number of preset interfaces 110d. In other words, the third seal 150 and the preset interface 110d can correspond one to one. The communication status between each preset interface 110d and the second interface 110b can be controlled by the corresponding third seal 150.

[0154] In some examples, the valve body 110 may include a fifth tubular structure 115 connected to the second tubular structure 112 . The preset interface 110 d is located in the fifth tubular structure 115 .

[0155] For some examples, see Figure 2 As shown, the center line of the second tubular structure 112 can be arranged in the vertical direction to facilitate the discharge of sewage into the sewer. The center line of the first tubular structure 111 can intersect with the center line of the second tubular structure 112. The center line of the fifth tubular structure 115 and the center line of the second tubular structure 112 can coincide, so that the sewage discharged from the equipment connected to the preset interface 110d can push the third sealing member 150 open under the action of gravity and be directly discharged into the sewer through the second tubular structure 112.

[0156] In some examples, the fifth tubular structure 115 and the second tubular structure 112 may be an integrally formed structure.

[0157] For some examples, see Fig.10 As shown, the third sealing member 150 may include a second flexible body 151 and a second rigid body 152. The second flexible body 151 may be used to isolate the preset interface 110d and the second interface 110b.

[0158] The second rigid body 152 may be disposed on the second flexible body 151 to support the second flexible body 151 .

[0159] It should be noted that the third sealing member 150 in the embodiment of the present application is a one-way valve. During the sewage discharge process, sewage can flow from the preset interface 110d to the second interface 110b. When the sewage discharge is stopped, the third sealing member 150 can be in a state of isolating the first interface 110a and the second interface 110b.

[0160] In the embodiment of the present application, the second flexible body 151 can produce elastic deformation, so that during the sewage discharge process, the sewage can easily push the third sealing member 150 to connect the preset interface 110d and the second interface 110b, and the sewage can be discharged into the sewer pipe. Since the second flexible body 151 can produce elastic deformation, when the sewage discharge stops, the second flexible body 151 can be reset to isolate the preset interface 110d and the second interface 110b.

[0161] In the embodiment of the present application, the second rigid body 152 can have the function of supporting the second flexible body 151. Since the second flexible body 151 is prone to elastic deformation, when the second flexible body 151 is reset, the outer contour of the second flexible body 151 is prone to deformation and is difficult to fit with the inner wall of the valve body 110, thereby affecting the sealing effect of the third sealing member 150. Therefore, by providing the second rigid body 152, the area of ​​the second flexible body 151 close to the inner wall of the valve body 110 can be supported, so that the outer contour of the second flexible body 151 can fit with the inner wall of the valve body 110, thereby improving the sealing effect of the third sealing member 150.

[0162] In some examples, the structure of the third sealing member 150 may be the same as or similar to that of the first sealing member 120. For example, along the thickness direction of the second flexible body 151, a second rigid body 152 may be provided on at least one side of the second flexible body 151. For example, the second rigid body 152 may be provided on the side of the first flexible body 121 facing the second interface 110b, or the second rigid body 152 may be provided on the side of the second flexible body 151 facing away from the second interface 110b. Furthermore, the second rigid body 152 may be provided on both sides of the second flexible body 151.

[0163] In some examples, the second rigid body 152 may be fixed to the second flexible body 151 by, but not limited to, bonding, crimping, or a detachable connection.

[0164] In some examples, when the second rigid bodies 152 are disposed on both sides of the second flexible body 151, a second through hole 151a may be provided on the second flexible body 151. A portion of one of the second rigid bodies 152 may be located in the second through hole 151a. A portion of another second rigid body 152 may also be located in the second through hole 151a. The portions of the two second rigid bodies 152 located in the second through holes 151a may be connected to fix the two second rigid bodies 152 to the second flexible body 151.

[0165] Exemplarily, one of the second rigid bodies 152 may be provided with a second protrusion 152b, and the other second rigid body 152 may be provided with a second groove 152a. The second protrusion 152b may be matched and connected with the second groove 152a, so that the two second rigid bodies 152 may be stably connected.

[0166] The second rigid body 152 may be provided with a toothed structure facing the second flexible body 151 , so as to be tightly connected with the second flexible body 151 .

[0167] In some examples, the second flexible body 151 may be provided with a second receiving groove 151 b for receiving a portion of the second rigid body 152 , so as to reduce the overall thickness of the third sealing member 150 .

[0168] In some examples, the second rigid body 152 may be, but is not limited to, a plate structure, a mesh structure, a columnar structure, etc., which are not limited in this embodiment. The outer contour of the second rigid body 152 may be a circle, a polygon, or a shape formed by a straight line and a curve, which are not limited in this embodiment.

[0169] In some examples, when the center line of one of the fifth tubular structures 115 coincides with the center line of the second tubular structure 112, the third seal 150 may correspond to the second interface 110b and one of the preset interfaces 110d. When the third seal 150 is in a free state, the second free end 150b and the second fixed end 150a may not be on the same plane. The second free end 150b may be bent toward one side of the preset interface 110d to facilitate elastic reset of the second free end 150b when the preset interface 110d stops draining.

[0170] In some possible implementations, see Figure 2 and Figure 4 As shown, the valve body 110 may further include a sixth tubular structure 116. The sixth tubular structure 116 may be disposed at at least one preset interface 110d. The sixth tubular structure 116 may be used to adapt to connected washing machines, wash basins and other equipment. The sixth tubular structure 116 may be detachably connected to the fifth tubular structure 115.

[0171] For example, see Figure 4 As shown, the fifth tubular structure 115 may be provided with a fifth hook 1151 , and the sixth tubular structure 116 may be provided with a sixth hook 1161 . The fifth hook 1151 and the sixth hook 1161 may be hooked with each other to stably connect the fifth tubular structure 115 and the sixth tubular structure 116 .

[0172] In some examples, the fifth tubular structure 115 and the sixth tubular structure 116 may also be provided with a limiting portion to prevent the fifth tubular structure 115 and the sixth tubular structure 116 from rotating relative to each other.

[0173] The present application also provides a base station 10, see Fig.11 As shown, the base station 10 may include a base station body 200 and the drain valve 100 in any of the above embodiments.

[0174] A sewage outlet 200a may be provided on the base station body 200. The sewage outlet 200a may be connected to a sewer pipe through a sewage valve 100 to discharge sewage into the sewer pipe.

[0175] In the embodiment of the present application, the sewage outlet 200a on the base station body 200 can be connected to the first tubular structure 111 of the sewage valve 100 through the sewage pipe 210, so that the sewage can pass through the sewage pipe 210 from the sewage outlet 200a and enter the sewage valve 100 through the first interface 110a, and finally the sewage can be discharged into the sewer pipe through the second interface 110b of the sewage valve 100.

[0176] In some examples, the sewage pipe 210 and the first tubular structure 111 may be connected by, but not limited to, threaded connection, snap connection, or flange connection.

[0177] The present application also provides a cleaning system. Fig.12 As shown, the cleaning system may include the base station 10 and the cleaning device 20 in the above embodiment. The cleaning device 20 may be placed in the base station 10.

[0178] Here, the difference between the cleaning device 20 and the base station 10 is described.

[0179] The functions of the cleaning device 20 are different: the cleaning device 20 is a cleaning mechanical device, which is mainly used to clean stains and dust on the surface to be cleaned. The surface to be cleaned can be a wooden floor, a tile floor, a marble floor, or a wall surface. The surface to be cleaned can also be a floor, a wall surface, a knitted surface, or a surface of an object to be cleaned with different degrees of roughness. The present application does not specifically limit the type of surface to be cleaned. The base station 10 is an intelligent infrastructure. When the cleaning device 20 is placed on the base station 10, the cleaning device 20 can be self-cleaned, dried, charged, and other operations.

[0180] In some examples, the cleaning device 20 may be a floor scrubber. For example, the floor scrubber may be a fully automatic floor scrubber, a semi-automatic floor scrubber, a hand-push floor scrubber, a ride-on floor scrubber, etc. Alternatively, in other examples, the cleaning device 20 may be a vacuum cleaner or a sweeping robot with a floor scrubbing function, etc. This is not limited in the embodiments of the present application.

[0181] In the embodiment of the present application, the base station 10 and the cleaning device 20 can be used in combination. Alternatively, the two can also be used separately as independent products.

[0182] When the base station 10 and the cleaning device 20 are used together, the airflow generating device can be located inside the base station 10. The sewage generated by the cleaning device 20 after cleaning is completed can enter the sewage valve 100 through the sewage pipe 210 of the base station 10 and be discharged into the sewer pipe. When the base station 10 is cleaned, the airflow generating device is started to put the valve body 110 in a negative pressure state. When the negative pressure state reaches the threshold, external gas can enter through the air inlet 110c of the sewage valve 100 to form a surge to provide airflow during the cleaning process. The air inlet 110c can provide a fresh airflow for the surge, thereby reducing the possibility of the airflow causing the base station 10 to produce odor and breed bacteria.

[0183] It should be noted here that the numerical values ​​and numerical ranges involved in this application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0184] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0185] In the description of the present application, it should be understood that the terms used, such as “center”, “length”, “width”, “thickness”, “top”, “bottom”, “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “horizontal”, “inside”, “outside”, “axial”, “circumferential”, etc., to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, a specific structure and operation, and therefore should not be understood as a limitation on the present invention.

[0186] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0187] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0188] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0189] The term "plurality" in this article refers to two or more than two. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship; in a formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0190] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0191] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A sewage valve (100), characterized in that: include: A valve body (110), the valve body (110) having a first interface (110a) and a second interface (110b), the first interface (110a) being used to communicate with a sewage outlet (200a) of a base station body (200), and the second interface (110b) being used to communicate with a sewer pipe; A first sealing member (120) is provided in the valve body (110), and the first sealing member (120) is used to connect or isolate the first interface (110a) and the second interface (110b); An air inlet (110c) is provided on the valve body (110) near the first interface (110a), and the air inlet (110c) is configured to be in a sealed state when the first sealing member (120) connects the first interface (110a) and the second interface (110b), and when the first sealing member (120) isolates the first interface (110a) and the second interface (110b) and the valve body (110) is in a negative pressure state, the air inlet (110c) can be converted from the sealed state to an open state, so that the first interface (110a) is connected to the outside.

2. The sewage valve (100) according to claim 1, characterized in that: A second sealing member (130) is provided at the air inlet (110c), and the second sealing member (130) is used to seal the air inlet (110c) when the first interface (110a) and the second interface (110b) are connected; The second sealing member (130) is also used to allow external gas to enter the first interface (110a) when the first interface (110a) and the second interface (110b) are isolated and the valve body (110) is in a negative pressure state.

3. The sewage valve (100) according to claim 2, characterized in that: The second sealing member (130) is deformable to switch between a first form and a second form; Wherein, when the base station (10) is discharging sewage, the second sealing member (130) is in the first state, and the second sealing member (130) seals the air inlet (110c) to isolate the valve body (110) from the outside; When the valve body (110) is in a negative pressure state, the second sealing member (130) can be converted from the first form to the second form, and the second sealing member (130) opens the air inlet (110c) to allow external air to enter the valve body (110) through the air inlet (110c).

4. The sewage valve (100) according to claim 3, characterized in that: The second sealing member (130) is a one-way valve, and the direction of gas passing through the second sealing member (130) is from the outside to the inside of the valve body (110).

5. The sewage valve (100) according to claim 4, characterized in that: The second sealing member (130) comprises a sealing portion (131), the sealing portion (131) being arranged corresponding to the air inlet (110c), and the sealing portion (131) having the first shape and the second shape, so as to be used for sealing or opening the air inlet (110c).

6. The sewage valve (100) according to claim 2, characterized in that: The valve body (110) comprises a first tubular structure (111) and a second tubular structure (112) which are connected to each other; the first interface (110a) is arranged on the first tubular structure (111); and the second interface (110b) is arranged on the second tubular structure (112); The valve body (110) comprises a third tubular structure (113), the third tubular structure (113) being in communication with the first tubular structure (111) and the second tubular structure (112), and the air inlet (110c) is provided on the third tubular structure (113).

7. The sewage valve (100) according to claim 6, characterized in that: The third tubular structure (113) is detachably connected to the first tubular structure (111), and the third tubular structure (113) is detachably connected to the second tubular structure (112).

8. The sewage valve (100) according to claim 6, characterized in that: The third tubular structure (113) is provided with an opening (113a), and the opening (113a) extends outwards to form a fourth tubular structure (114); The sewage discharge valve (100) comprises a cover body (140), the air inlet (110c) is provided on the cover body (140), and the second sealing member (130) is arranged on the cover body (140).

9. The sewage valve (100) according to claim 8, characterized in that: The cover body (140) and the fourth tubular structure (114) are respectively provided with a first clamping portion (141) and a second clamping portion (1141) for connection.

10. The sewage valve (100) according to any one of claims 1 to 9, characterized in that: The first sealing member (120) comprises a first flexible body (121) and a first rigid body (122); the first flexible body (121) is used to isolate the first interface (110a) from the second interface (110b); and the first rigid body (122) is arranged on the first flexible body (121) to support the first flexible body (121).

11. The sewage valve (100) according to any one of claims 1 to 9, characterized in that: The valve body (110) has at least one preset interface (110d), one end of the preset interface (110d) is connected to the sewer pipe, and a third sealing member (150) is provided in the valve body (110), the third sealing member (150) is used to connect or isolate at least one preset interface (110d) and the sewer pipe.

12. A base station (10), characterized in that: include: A base station body (200), wherein the base station body (200) is provided with a sewage outlet (200a); The sewage valve (100) according to any one of claims 1 to 11, wherein the sewage outlet (200a) is connected to the sewer pipe through the sewage valve (100) to discharge sewage into the sewer pipe.

13. A cleaning system, characterized in that: It comprises the base station (10) as claimed in claim 12, and a cleaning device (20), wherein the cleaning device (20) is placed on the base station (10).

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