Water tank, filter element and cleaning machine therefor

Abstract

The application relates to the technical field of cleaning, and provides a water tank, a filter element of the water tank and a cleaning machine. The water tank has a water inlet hole and a water outlet hole. The filter element is used for filtering liquid entering the water tank through the water inlet hole or flowing out of the water tank through the water outlet hole. The filter element comprises a supporting cylinder and a filter screen. The supporting cylinder comprises a closed end and an open end. The closed end and the open end are oppositely arranged along the axial direction of the supporting cylinder. The open end of the supporting cylinder is adapted to communicate with one of the water inlet hole and the water outlet hole, and surrounds one of the water inlet hole and the water outlet hole. The cylinder wall of the supporting cylinder is provided with a through hole. The filter screen is fixedly connected with the cylinder wall, and covers the through hole, so as to filter the liquid flowing through the through hole. The filter element of the water tank provided by the application can solve the technical problems of complex filtering structure and high production cost.

Description

Technical Field

[0001] This application belongs to the field of cleaning technology, and more specifically, relates to a water tank and its filter components and a cleaning machine. Background Technology

[0002] Cleaning machines typically have a water tank for storing cleaning fluid, which is then added to the cleaning chamber via a water supply assembly. To improve the cleanliness of the cleaning fluid added to the cleaning chamber, the water tank's inlet or outlet is usually equipped with a filter structure to filter the cleaning fluid.

[0003] However, the filter structures in related technologies are complex and have high production costs. Utility Model Content

[0004] The purpose of this application is to provide a water tank, its filter components, and a cleaning machine to solve the technical problems of complex filter structures and high production costs.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, this application provides a filter element for a water tank. The water tank has an inlet and an outlet. The filter element is used to filter liquid entering the water tank through the inlet or flowing out of the water tank through the outlet. The filter element includes a support cylinder and a filter screen. The support cylinder includes a closed end and an open end, which are arranged opposite to each other along the axial direction of the support cylinder. The open end of the support cylinder is adapted to connect to one of the inlet and the outlet and surrounds one of the inlet and the outlet. The cylinder wall of the support cylinder is provided with a through hole. The filter screen is fixedly connected to the cylinder wall and covers the through hole to filter the liquid flowing through the through hole.

[0007] Through the above technical solution, the water tank filter element provided in this application can filter liquids entering the water tank through the inlet or flowing out of the water tank through the outlet, enabling the water tank to provide clean liquids. The filter screen is fixedly connected to the cylinder wall and covers the through holes on the cylinder wall. The cylinder wall can support the filter screen, allowing it to filter liquids flowing through the through holes, and the filtered impurities are not easily adhered to the filter screen. In addition, the fixed connection between the filter screen and the cylinder wall simplifies the structure of the filter element and helps to reduce production costs.

[0008] Therefore, the filter element of the water tank provided in this application can solve the technical problems of complex filtration structure and high production cost.

[0009] In some embodiments, the outer circumferential surface of the cylinder wall is provided with an installation groove, a through hole is provided in the bottom wall of the installation groove, and the filter screen is installed in the installation groove.

[0010] In this way, the mounting groove can limit the movement of the filter screen, which helps to improve the connection strength between the filter screen and the cylinder wall, thereby improving the reliability of the filter element.

[0011] In some embodiments, the bottom wall of the mounting groove is provided with protruding teeth that surround the through hole and are spaced apart from the side wall of the mounting groove.

[0012] In this way, the mounting groove can increase the contact area with the filter screen by using protruding teeth, which helps to improve the connection strength between the filter screen and the cylinder wall, and also helps to improve the sealing performance of the connection between the mounting groove and the filter screen.

[0013] In some implementations, the thickness of the filter screen is equal to the depth of the mounting groove.

[0014] In this way, the filter can fill the mounting slot, and the impurities filtered out by the filter are less likely to accumulate in the mounting slot.

[0015] In some implementations, the filter screen is welded to the cylinder wall.

[0016] In this way, welding the filter screen to the cylinder wall helps to improve the strength of the connection between the filter screen and the cylinder wall.

[0017] In some implementations, the thickness of the filter screen is greater than or equal to 0.1 mm and less than or equal to 0.3 mm;

[0018] And / or, the mesh count of the filter is greater than or equal to 20 and less than or equal to 200.

[0019] In this way, the filter can have a good filtering effect.

[0020] In some implementations, the filter screen is a nylon filter screen, which can have good corrosion resistance and high temperature resistance.

[0021] In some embodiments, the outer circumferential surface of the cylinder wall is provided with a snap-fit ​​portion, which is located near the open end.

[0022] In this way, the filter element provided in this application can be snapped onto the cylinder wall, making it easy to disassemble and clean.

[0023] Secondly, this application provides a water tank, which includes a tank body and a filter element according to any of the above embodiments. The filter element is disposed inside the tank body and connected to the inner wall of the tank body. The tank body has a water inlet and a water outlet. The open end of the support cylinder is connected to the water outlet and surrounds the water outlet.

[0024] The water tank provided in this application can filter the liquid flowing out of the water tank through the outlet using a filter element. In addition, the water tank provided in this application has the same or similar technical effects as the filter element in any of the above embodiments, which will not be repeated here.

[0025] Thirdly, this application provides a cleaning machine, which includes a water tank as described in the above embodiments. The cleaning machine includes a cleaning chamber and a flow guide bracket installed in the cleaning chamber. The water tank is installed in the cleaning chamber and includes a water outlet valve installed at the water outlet. The flow guide bracket is used to open the water outlet valve and is connected to the water blowing port.

[0026] The cleaning machine provided in this application can open the water outlet valve of the water tank using a flow guide bracket, so that the liquid in the water tank can flow into the flow guide bracket. The cleaning machine provided in this application has the same or similar technical effects as the water tank of any of the above embodiments, which will not be repeated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is one of the three-dimensional structural schematic diagrams of the cleaning machine provided in the embodiments of this application;

[0029] Figure 2 This is a second three-dimensional structural schematic diagram of the cleaning machine provided in the embodiments of this application;

[0030] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;

[0031] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0032] Figure 5 A three-dimensional structural schematic diagram of the filter element provided in the embodiments of this application;

[0033] Figure 6 For along Figure 5 Cross-sectional view of the CC line;

[0034] Figure 7 For along Figure 5 Cross-sectional view of the DD line;

[0035] Figure 8 for Figure 7 A magnified view of a portion of point E in the middle;

[0036] Figure 9 A three-dimensional structural diagram of the outlet valve and flow guide bracket provided in the embodiments of this application;

[0037] Figure 10 For along Figure 9 Cross-sectional view of the FF line.

[0038] The following are the labeling elements in the figure:

[0039] 1000 - Cleaning machine; 100 - Cleaning chamber; 1001 - Cleaning cavity; 1002 - Water inlet; 1003 - Circulation inlet; 1004 - Circulation outlet;

[0040] 200-Water tank; 10-Tank body; 101-Water storage chamber; 102-Water outlet; 20-Filter element; 21-Support cylinder; 2101-Closed end; 2102-Open end; 2103-Through hole; 2104-Mounting groove; 211-Snap-fit ​​part; 212-Protruding tooth; 22-Filter screen; 30-Water outlet pipe; 40-Water outlet valve; 41-Valve core; 42-Sealing ring; 43-Spring;

[0041] 300-Flow guide bracket; 310-Flow guide shell; 3101-Flow guide cavity; 311-Top rod; 320-Sealing gasket; 330-Flow guide tube;

[0042] 400 - Water injection pump; 500 - Water injection components. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] Please see Figure 1 , Figure 1 This is one of the three-dimensional structural schematic diagrams of the cleaning machine 1000 provided in the embodiments of this application. The cleaning machine 1000 includes a cleaning chamber 100, and the cleaning chamber 100 has a cleaning cavity 1001 inside. That is, the cleaning cavity 1001 is disposed within the cleaning chamber 100, and items to be cleaned can be placed into the cleaning cavity 1001 for cleaning. The cleaning machine 1000 needs to add cleaning fluid to the cleaning cavity 1001 to clean the items to be cleaned. The cleaning fluid can be clean water or a mixture of clean water and detergent, etc.

[0048] Please continue reading. Figure 1 and combined Figure 2 , Figure 3 and Figure 4 , Figure 2 This is the second three-dimensional structural schematic diagram of the cleaning machine 1000 provided in the embodiments of this application. Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle. Figure 4 for Figure 3 In the enlarged view at point B, optionally, the cleaning chamber 100 is provided with a water injection hole 1002 communicating with the cleaning cavity 1001. The cleaning machine 1000 provided in this application embodiment also includes a water tank 200 and a flow guide bracket 300. The water tank 200 is installed in the cleaning chamber 100, and the water tank 200 is provided with a water storage cavity 101 and a water inlet hole and a water outlet hole 102 communicating with the water storage cavity 101. The cleaning fluid can enter the water storage cavity 101 through the water inlet hole and be stored therein, and can be discharged to the flow guide bracket 300 through the water outlet hole 102. The cleaning fluid in the water tank 200 can be exported through the flow guide bracket 300 and enter the cleaning cavity 1001 through the water injection hole 1002.

[0049] The water tank 200 includes a tank body 10, and the tank body 10 has a water storage cavity 101 inside. That is, the water storage cavity 101 is set inside the tank body 10, the water inlet is set at the upper end of the tank body 10, and the water outlet 102 is set at the lower end of the tank body 10.

[0050] Optionally, the cleaning machine 1000 provided in this application embodiment also includes a water injection pump 400 and a water injection component 500 installed in the cleaning chamber 100. The water injection component 500 is connected to the water injection hole 1002. The water injection pump 400 can be connected to the flow guide bracket 300 and the water injection component 500 through a pipeline, so that the cleaning fluid discharged by the flow guide bracket 300 can be drawn out and injected into the cleaning chamber 1001 through the water injection component 500.

[0051] Optionally, the cleaning machine 1000 provided in this embodiment further includes a washing circulation pump (not shown in the figure). The bottom wall of the cleaning chamber 1001 has a circulation inlet 1003 and a circulation outlet 1004. The washing circulation pump can connect the circulation inlet 1003 and the circulation outlet 1004 through a pipeline. Under the action of the washing circulation pump, the cleaning liquid in the cleaning chamber 1001 can be discharged through the circulation outlet 1004 and then enter the cleaning chamber 1001 through the circulation inlet 1003, thereby enabling the circulatory cleaning of the items to be cleaned in the cleaning chamber 1001. The washing circulation pump is not the focus of this application and is not limited thereto.

[0052] Optionally, the cleaning machine 1000 provided in this application embodiment further includes a spray device (not shown in the figure). The spray device is installed on the bottom wall of the cleaning chamber 1001 and communicates with the circulation inlet 1003. In this way, under the action of the washing circulation pump, the cleaning liquid can enter the spray device from the circulation inlet 1003, thereby using the spray device to clean the items to be cleaned. The spray device is not the focus of this application and is not limited thereto.

[0053] Optionally, the cleaning machine 1000 provided in this application embodiment also includes a sewage pump (not shown in the figure). The sewage pump can be connected to the circulation outlet 1004 through a pipeline. After cleaning is completed, the cleaning liquid in the cleaning chamber 1001 can be discharged through the circulation outlet 1004 under the action of the sewage pump. The sewage pump is not the focus of protection in this application and is not limited here.

[0054] It is understood that the cleaning machine 1000 provided in this application embodiment can be a baby bottle cleaning machine 1000, which can be used to clean baby bottles, nipples, breast pumps or other maternal and infant products. Of course, the cleaning machine 1000 can also be used to clean food, tableware, etc. Therefore, the cleaning machine 1000 provided in this application embodiment has high requirements for the cleanliness of the cleaning solution. In order to improve the cleanliness of the cleaning solution added to the cleaning chamber 1001, the water inlet or outlet 102 of the water tank 200 is usually equipped with a filter structure to filter the cleaning solution. However, the filter structure in the related technology is complex and has high production cost.

[0055] Please continue reading Figure 4 and combined Figure 5 and Figure 6 , Figure 5This is a three-dimensional structural diagram of the filter element 20 provided in the embodiments of this application. Figure 6 For along Figure 5 The cross-sectional view along the CC line shows that, to address the aforementioned technical problems, this application embodiment also provides a filter element 20 for a water tank 200. That is, the water tank 200 further includes a filter element 20, which is installed on the tank body 10 and is used to filter liquid entering the water tank 200 through the inlet hole or flowing out of the water tank 200 through the outlet hole 102. Therefore, the filter element 20 provided in this application embodiment can filter liquid entering the water tank 200 through the inlet hole or flowing out of the water tank 200 through the outlet hole 102, enabling the water tank 200 to provide clean liquid.

[0056] The filter element 20 includes a support cylinder 21 and a filter screen 22. The support cylinder 21 includes a closed end 2101 and an open end 2102. The closed end 2101 and the open end 2102 are arranged opposite to each other along the axial direction of the support cylinder 21. The open end 2102 of the support cylinder 21 is adapted to connect to one of the water inlet hole and the water outlet hole 102 and surrounds one of the water inlet hole and the water outlet hole 102. The cylinder wall of the support cylinder 21 is provided with a through hole 2103. The filter screen 22 is fixedly connected to the cylinder wall and covers the through hole 2103 to filter the liquid flowing through the through hole 2103.

[0057] Understandably, the filter screen 22 is fixedly connected to the cylinder wall and covers the through holes 2103 on the cylinder wall. The cylinder wall can support the filter screen 22, allowing it to filter the liquid flowing through the through holes 2103, and the filtered impurities are less likely to stick to the filter screen 22. In addition, the fixed connection between the filter screen 22 and the cylinder wall simplifies the structure of the filter element 20, which helps to reduce production costs.

[0058] Therefore, the filter element 20 of the water tank 200 provided in this application can solve the technical problems of complex filter structure and high production cost.

[0059] Please continue reading. Figure 4 Optionally, the filter element 20 is disposed inside the housing 10 and connected to the inner wall of the housing 10. The housing 10 has a water inlet and a water outlet 102. The open end 2102 of the support cylinder 21 communicates with the water outlet 102 and surrounds the water outlet 102. The cleaning liquid in the water storage chamber 101 of the housing 10 can only enter the water outlet 102 through the filter screen 22. That is, the water tank 200 provided in this embodiment can use the filter element 20 to filter the liquid flowing out of the water tank 200 through the water outlet 102.

[0060] Understandably, the open end 2102 of the support cylinder 21 can be detachably connected to the inner wall of the housing 10, thereby facilitating the installation and removal of the filter element 20 and making it easier to clean the filter element 20. For example, the open end 2102 of the support cylinder 21 can be connected to the inner wall of the housing 10 via a threaded connector.

[0061] In some examples, the outer circumferential surface of the cylinder wall is provided with a snap-fit ​​part 211, which is located near the open end 2102. That is, the filter element 20 provided in this application can be snapped into the cylinder wall, making it convenient to disassemble and clean.

[0062] Optionally, the snap-fit ​​part 211 is a snap-fit ​​protrusion, and the inner wall of the housing 10 is provided with a snap-fit ​​groove. The snap-fit ​​part 211 can snap into the snap-fit ​​groove on the inner wall of the housing 10, thereby facilitating disassembly and installation.

[0063] Optionally, the snap-fit ​​part 211 is a snap-fit ​​groove, and the inner wall of the housing 10 is provided with a snap-fit ​​protrusion. The snap-fit ​​part 211 can snap-fit ​​with the snap-fit ​​groove on the inner wall of the housing 10, thereby facilitating disassembly and installation.

[0064] Please refer to the following: Figure 7 and Figure 8 , Figure 7 For along Figure 5 Cross-sectional view of the DD line. Figure 8 for Figure 7 In a partial enlarged view at point E, in some embodiments, the outer peripheral surface of the cylinder wall is provided with a mounting groove 2104, a through hole 2103 is provided in the bottom wall of the mounting groove 2104, and the filter screen 22 is installed in the mounting groove 2104.

[0065] The through hole 2103 penetrates the bottom wall of the mounting groove 2104, so that the cleaning fluid in the water storage chamber 101 can flow through the filter screen 22 into the support cylinder 21, so that the filter element 20 can filter the cleaning fluid.

[0066] In addition, the mounting groove 2104 can limit the movement of the filter screen 22, which helps to improve the connection strength between the filter screen 22 and the cylinder wall, thereby improving the reliability of the filter element 20.

[0067] In some embodiments, the bottom wall of the mounting groove 2104 is provided with a protrusion 212, which surrounds the through hole 2103 and is spaced apart from the side wall of the mounting groove 2104.

[0068] It is understood that the cross-section of the protruding tooth 212 can be triangular or trapezoidal, and the protruding tooth 212 can fit against the edge of the filter screen 22. For example, the filter screen 22 is provided with a recess that mates with the protruding tooth 212; for example, the protruding tooth 212 can deform the filter screen 22, so that a recess that mates with the protruding tooth 212 is formed on the side of the filter screen 22 facing the bottom wall of the mounting groove 2104.

[0069] In this way, the mounting groove 2104 can increase the contact area with the filter screen 22 by using the protrusion 212, which is beneficial to improving the connection strength between the filter screen 22 and the cylinder wall, and also beneficial to improving the connection sealing between the mounting groove 2104 and the filter screen 22.

[0070] Optionally, the thickness of the filter screen 22 is equal to the depth of the mounting groove 2104. The outer surface of the filter screen 22 can be flush with the outer circumferential surface of the cylinder wall, or the outer surface of the filter screen 22 can protrude from the outer circumferential surface of the cylinder wall. That is, the filter screen 22 can fill the mounting groove 2104. The impurities filtered out by the filter screen 22 are not easy to accumulate in the mounting groove 2104, which helps to avoid clogging the filter screen 22 and thus improves the filtration effect.

[0071] For example, the outer surface of the filter screen 22 is aligned with the outer peripheral surface of the cylinder wall.

[0072] In some embodiments, the filter screen 22 is welded to the cylinder wall, for example, the filter screen 22 is ultrasonically welded to the cylinder wall, which helps to improve the firmness of the connection between the filter screen 22 and the cylinder wall.

[0073] In other embodiments, the filter screen 22 is integrally formed with the cylinder wall. In this way, the filter element 20 provided in this application embodiment does not suffer from weak connection strength between the filter screen 22 and the cylinder wall, thus increasing the connection strength.

[0074] In other embodiments, the filter screen 22 can be bonded to the cylinder wall, which facilitates the connection between the filter screen 22 and the cylinder wall and helps to reduce production costs.

[0075] In other embodiments, the filter screen 22 can be fixedly connected to the cylinder wall by threaded connectors, for example, the filter screen 22 can be fixedly connected to the cylinder wall by screws, which makes it easy to replace the filter screen 22 and thus facilitates the maintenance of the filter element 20.

[0076] In some embodiments, the thickness of the filter screen 22 is greater than or equal to 0.1 mm and less than or equal to 0.3 mm, which enables the filter element 20 to achieve a good filtration effect on the cleaning liquid. Furthermore, while meeting the filtration effect, the thickness of the filter screen 22 is not greater than 0.3 mm, which helps to reduce manufacturing costs.

[0077] Optionally, the thickness of the filter screen 22 is greater than or equal to 0.1 mm and less than or equal to 0.2 mm.

[0078] Optionally, the thickness of the filter screen 22 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm.

[0079] Optionally, the thickness of the filter screen 22 is greater than or equal to 0.15 mm and less than or equal to 0.25 mm.

[0080] Optionally, the thickness of the filter screen 22 can be 0.1mm, 0.125mm, 0.15mm, 0.175mm, 0.2mm, 0.225mm, 0.25mm, 0.275mm, 0.3mm, etc.

[0081] Optionally, the mesh count of filter screen 22 is greater than or equal to 20 and less than or equal to 200, which helps to improve the filtration effect on fine impurities.

[0082] Optionally, the mesh count of filter 22 is greater than or equal to 100 and less than or equal to 200.

[0083] Optionally, the mesh count of filter 22 is greater than or equal to 50 and less than or equal to 100.

[0084] Optionally, the mesh count of filter 22 is greater than or equal to 20 and less than or equal to 50.

[0085] Optionally, the mesh count of the filter screen 22 can be 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, etc.

[0086] It is understood that the embodiments of this application can select a suitable filter screen 22 according to the type of items to be cleaned.

[0087] Optionally, the filter screen 22 can be a nylon filter screen, which can have good corrosion resistance and high temperature resistance.

[0088] Of course, in other examples, the filter 22 can also be made of other materials, for example, the filter 22 can be a stainless steel filter.

[0089] Please continue reading. Figure 4 and combined Figure 9 and Figure 10 , Figure 9 This is a three-dimensional structural diagram of the water outlet valve 40 and the flow guide bracket 300 provided in the embodiments of this application. Figure 10 For along Figure 9 The cross-sectional view of the FF line shows that, in some embodiments, the cleaning machine 1000 provided in this application further includes a water outlet valve 40 installed at the water outlet 102. The water tank 200 may include a water outlet pipe 30 connected to the tank body 10, the water outlet pipe 30 communicating with the water outlet 102, the water outlet valve 40 being disposed inside the water outlet pipe 30, and a flow guide bracket 300 installed in the cleaning chamber 100. The flow guide bracket 300 can open the water outlet valve 40 and communicate with the water outlet 102. The water outlet pipe 30 is located below the tank body 10 and can be integrally connected to the tank body 10.

[0090] It is understood that after the cleaning machine 1000 provided in this application is assembled, the water outlet valve 40 of the water tank 200 can be opened by the flow guide bracket 300, so that the cleaning liquid in the water tank 200 can flow into the flow guide bracket 300 through the water outlet hole 102, and then the cleaning liquid in the water storage chamber 101 can be discharged.

[0091] Optionally, the outlet valve 40 includes a valve core 41, which passes through the outlet hole 102 and the outlet pipe 30, and the valve core 41 is provided with limiting structures at both ends in the axial direction of the outlet pipe 30. For example, one end of the valve core 41 is located in the water storage chamber 101 and is provided with a first limiting structure, which prevents the valve core 41 from detaching from the housing 10.

[0092] Optionally, the outlet valve 40 includes a sealing ring 42 disposed on the outer periphery of the valve core 41, and the sealing ring 42 can seal against the wall of the outlet hole 102.

[0093] Optionally, the inner diameter of the water outlet pipe 30 is larger than the diameter of the water outlet hole 102, and the water outlet pipe 30 and the water outlet hole 102 are coaxially arranged. The other end of the valve core 41 is located inside the water outlet pipe 30, and the other end of the valve core 41 is provided with a second limiting structure. The radial dimension of the second limiting structure is smaller than the inner diameter of the water outlet pipe 30 and larger than the diameter of the water outlet hole 102. In this way, the second limiting structure of the valve core 41 can move axially inside the water outlet pipe 30.

[0094] Understandably, the valve core 41 can move along the axial direction of the water outlet pipe 30 between a first position and a second position. When the valve core 41 is in the first position, the sealing ring 42 on the outer periphery of the valve core 41 seals against the wall of the water outlet 102, preventing the cleaning fluid in the water storage chamber 101 from flowing out of the water outlet 102. When the valve core 41 is in the second position, the sealing ring 42 on the outer periphery of the valve core 41 moves upward and disengages from the water outlet 102, allowing the cleaning fluid in the water storage chamber 101 to flow out of the water outlet 102.

[0095] During the process of moving the valve core 41 from the first position to the second position, the valve core 41 moves upward; during the process of moving the valve core 41 from the second position to the first position, the valve core 41 moves downward.

[0096] Optionally, the outlet valve 40 includes a spring 43, which is sleeved on the outer periphery of the valve core 41 and abuts against the second limiting structure and the bottom wall of the housing 10. In this way, when the valve core 41 moves from the first position to the second position under the action of external force, the spring 43 is compressed. After the external force disappears, the valve core 41 can move from the second position to the first position under the action of the elastic force of the spring 43 and its own gravity.

[0097] Optionally, the flow guide bracket 300 includes a flow guide shell 310 and a sealing gasket 320. The flow guide shell 310 is a hollow structure with an opening at one end and has a flow guide cavity 3101, with the opening communicating with the flow guide cavity 3101. The end of the flow guide shell 310 with the opening is installed in the cleaning chamber 100 and cooperates with the water outlet pipe 30, so that the cleaning fluid in the water tank 200 can enter the flow guide wall. The sealing gasket 320 can be disposed between the flow guide shell 310 and the cleaning chamber 100 and between the flow guide shell 310 and the water outlet pipe 30, thus preventing leakage of the cleaning fluid entering the flow guide shell 310.

[0098] The guide shell 310 has a push rod 311 extending toward the valve core 41 inside. During the connection between the water tank 200 and the cleaning chamber 100, the push rod 311 can push the valve core 41 from the first position to the second position.

[0099] Optionally, the flow guide bracket 300 also includes a flow guide pipe 330 installed in the flow guide shell 310. The flow guide pipe 330 is connected to the flow guide cavity 3101. The flow guide pipe 330 can export the cleaning fluid in the flow guide cavity 3101. For example, the water injection pump 400 can be connected to the flow guide pipe 330.

[0100] The above are merely specific embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A filter element for a water tank, characterized in that, The water tank has an inlet and an outlet. The filter element is used to filter liquid entering the water tank through the inlet or flowing out of the water tank through the outlet. The filter element includes: A support cylinder, the support cylinder including a closed end and an open end, the closed end and the open end being arranged opposite to each other along the axial direction of the support cylinder, the open end of the support cylinder being adapted to communicate with one of the water inlet and the water outlet, and surrounding one of the water inlet and the water outlet, the cylinder wall of the support cylinder being provided with a through hole; A filter screen is fixedly connected to the cylinder wall and covers the through hole to filter the liquid flowing through the through hole.

2. The filter element as described in claim 1, characterized in that, The outer circumferential surface of the cylinder wall is provided with an installation groove, the through hole is provided in the bottom wall of the installation groove, and the filter screen is installed in the installation groove.

3. The filter element as described in claim 2, characterized in that, The bottom wall of the mounting groove is provided with protruding teeth, which surround the through hole and are spaced apart from the side wall of the mounting groove.

4. The filter element as described in claim 2, characterized in that, The thickness of the filter screen is equal to the depth of the mounting groove.

5. The filter element as described in claim 1, characterized in that, The filter screen is welded to the cylinder wall.

6. The filter element as claimed in claim 1, characterized in that, The thickness of the filter screen is greater than or equal to 0.1 mm and less than or equal to 0.3 mm; And / or, the mesh count of the filter is greater than or equal to 20 and less than or equal to 200.

7. The filter element as claimed in claim 1, characterized in that, The filter screen is a nylon filter screen.

8. The filter element according to any one of claims 1 to 7, characterized in that, The outer circumferential surface of the cylinder wall is provided with a snap-fit ​​part, which is located near the open end.

9. A water tank, characterized in that, The device includes a housing and a filter element as described in any one of claims 1 to 8, the filter element being disposed inside the housing and connected to the inner wall of the housing, the housing having a water inlet and a water outlet, the open end of the support cylinder communicating with the water outlet and surrounding the water outlet.

10. A cleaning machine, characterized in that, The cleaning machine includes the water tank as described in claim 8, and includes a cleaning chamber and a flow guide bracket installed in the cleaning chamber. The water tank is installed in the cleaning chamber and includes a water outlet valve installed at the water outlet. The flow guide bracket is used to open the water outlet valve and communicates with the water outlet.

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