Water tank assembly and base station

Abstract

The embodiment of the utility model relates to the technical field of cleaning systems, in particular to a water tank assembly and a base station. The water tank assembly comprises a tank body, a tank cover and a sealing ring. The box cover is used for being detachably connected with the box body and comprises an annular abutting part. The sealing ring is installed on the box cover, the abutting part is arranged around the sealing ring in the circumferential direction, the sealing ring comprises an annular bending belt, the bending belt is bent outwards and can generate elastic deformation, the bending belt is used for abutting against the opening edge of the box body when the box body is closed by the box cover, and the bending belt comprises a suspended outer edge part; the outer edge part can move towards the abutting part along with deformation of the bending belt when the bending belt abuts against the edge of the opening of the box body so as to abut against the abutting part. According to the box cover, the abutting part matched with the outer edge part of the bending belt is arranged, the outer edge part of the bending belt actively moves towards the abutting part along with deformation of the bending belt, the outer edge part of the bending belt is prevented from being curled, and the sealing effect of the sealing ring is guaranteed.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of cleaning robots, and in particular to a water tank assembly and a base station. Background Art

[0002] The base station of a cleaning robot is generally equipped with a water tank assembly, which includes a detachable tank cover and a water tank. A sealing ring is provided between the tank cover and the water tank to ensure the sealing of the water tank assembly.

[0003] Currently, a sealing ring is typically mounted on the tank lid and features an elastically deformable folding structure that abuts the edge of the water tank opening to achieve a seal. However, the folding structure of the sealing ring has one side that is suspended. When the folding structure abuts the edge of the water tank, the suspended side of the folding structure remains suspended. This can easily cause the suspended side of the folding structure to curl inward after the tank lid is opened and closed multiple times, resulting in a poor elastic recovery effect and ultimately reducing the sealing effectiveness of the sealing ring. Utility Model Content

[0004] One purpose of the embodiments of the present application is to provide a water tank assembly and a base station to solve the technical problem that the bending structure of the sealing ring in the water tank assembly is prone to curling inward, resulting in reduced sealing effect.

[0005] In a first aspect, an embodiment of the present application provides a water tank assembly, comprising:

[0006] Open box;

[0007] a box cover, the box cover being used to cover the box body, the box cover comprising an annular abutting portion; and

[0008] A sealing ring is installed on the box cover, and the abutment portion is circumferentially arranged around the sealing ring. The sealing ring includes an annular bending band, which is bent outward and can produce elastic deformation. The bending band is used to abut the opening edge of the box body when the box cover closes the box body. The bending band includes a suspended outer edge portion, and the outer edge portion can move toward the abutment portion following the deformation of the bending band when the bending band abuts the opening edge of the box body to abut the abutment portion.

[0009] Optionally, the box cover further includes an annular mounting groove, the mounting groove is located on the inner side of the abutting portion, the sealing ring further includes an annular mounting belt, the mounting belt is installed in the mounting groove, and the bending belt further includes:

[0010] an inner edge portion connected to an inner edge of the mounting belt;

[0011] A bending portion, wherein the bending portion connects the inner edge portion and the outer edge portion respectively, and the bending portion is configured to bend outward from the inner edge portion to the outer edge portion, and the bending portion is used to abut the opening edge of the box body when the box cover is connected to the box body.

[0012] Optionally, the thickness of the inner edge portion is greater than the thickness of the outer edge portion, and the thickness of the bending portion gradually decreases from the inner edge portion to the outer edge portion.

[0013] Optionally, the outer edge portion is provided with an abutting arc surface, and the abutting portion is provided with two intersecting abutting straight surfaces, and the abutting arc surface abuts at least one of the two abutting straight surfaces when the box cover is connected to the box body.

[0014] Optionally, the box cover further includes a handle, and a sunken platform is provided on the top of the box cover, and the handle spans and is partially suspended above the bottom surface of the sunken platform.

[0015] Optionally, any cross-section of the handle perpendicular to the length direction is a first arc segment structure, and the outer edge of the first arc segment structure is closer to the bottom surface of the sink than the inner edge.

[0016] Optionally, the sink includes two inner wall surfaces arranged opposite to each other, and the handle includes:

[0017] a handle body including two end portions; and

[0018] There are two roots, each root is connected to a corresponding inner wall surface and a corresponding end of the handle body, and the outer circumferential surface of any root is an arc surface that gradually expands outward from the corresponding end of the handle body to the corresponding inner wall surface.

[0019] Optionally, any cross-section of the handle body perpendicular to the width direction is a second arc segment structure, and the outer edge of the second arc segment structure is closer to the bottom surface of the sink than the inner edge.

[0020] Optionally, the box body includes a hinge portion and a buckle portion, the hinge portion and the buckle portion are arranged opposite to each other, and the box cover includes:

[0021] a hinged fitting portion, the hinged fitting portion being hingedly connected to the hinge portion, so that the box cover can rotate relative to the box body around a hinge axis of the hinge portion when closing and opening the box body;

[0022] A snap-fit ​​portion is arranged opposite to the hinged fitting portion, and is used to be connected with the snap-fit ​​portion when the box cover closes the box body.

[0023] In a second aspect, an embodiment of the present application provides a base station, comprising a water tank assembly as described in any one of the above items.

[0024] The embodiments of the present application can achieve the following technical effects: the box cover of the embodiment of the present application is provided with an abutment portion that adapts to the outer edge of the bending band, so that the bending band can abut the outer edge of the bending band when it abuts the opening edge of the box body, and the outer edge of the bending band actively moves toward the abutment portion following the deformation of the bending band, thereby avoiding curling of the outer edge of the outer bending band to ensure the sealing effect of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or several embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 A schematic structural diagram of a water tank assembly provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the cross-sectional structure of a water tank assembly provided in an embodiment of the present application when the tank cover is opened;

[0028] Figure 3 for Figure 2 Enlarged view of part A;

[0029] Figure 4 for Figure 2 Enlarged view of part B;

[0030] Figure 5 A schematic cross-sectional view of a water tank assembly provided in an embodiment of the present application when the tank cover is closed;

[0031] Figure 6 for Figure 5 Enlarged view of part C;

[0032] Figure 7 for Figure 5 Enlarged view of part D in the middle;

[0033] Figure 8 A schematic cross-sectional view of a tank cover and a sealing ring of a water tank assembly provided in an embodiment of the present application;

[0034] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure when the sealing ring is squeezed;

[0035] Figure 10 Schematic diagram of the cross-sectional structure of a conventional sealing ring and the sealing ring provided in the embodiment of the present application;

[0036] Figure 11 A schematic structural diagram of a tank cover of a water tank assembly provided in an embodiment of the present application;

[0037] Figure 12 for Figure 11 Schematic diagram of the cross-section structure along the midline EE;

[0038] Figure 13 for Figure 11 Schematic diagram of the cross-sectional structure along the center cutting line FF.

[0039] Description of labels:

[0040] 100. Water tank assembly; 11. Tank cover; 111. Abutment portion; 1111. Abutment straight surface; 112. Mounting groove; 112. Handle; 1121. Handle body; 11211. End portion; 11212. Second arc segment structure; 1122. Root portion; 1123. First arc segment structure; 113. Sink; 1131. Bottom surface; 1132. Curved surface; 1133. Inner wall surface; 114. Hinge fitting portion; 115. Snap fitting portion; 12. Sealing ring; 121. Bending strip; 1211. Outer edge portion; 12111. Abutment arc surface; 12112. Straight end surface; 1212. Inner edge portion; 1213. Bending portion; 122. Mounting strip; 20. Tank body; 21. Opening edge; 22. Hinge portion; 23. Snap fitting portion. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0043] Please also refer to Figures 1 to 6In a first aspect, an embodiment of the present application provides a water tank assembly 100, which is applied to a base station of a cleaning system. The water tank assembly 100 includes a tank cover 11 and an open tank body 20. The tank cover 11 is used to be detachably connected to the open tank body 20, and the tank cover 11 includes an annular abutment portion 111. A sealing ring 12 is installed on the tank cover 11, and the abutment portion 111 is arranged circumferentially around the sealing ring 12. The sealing ring 12 includes an annular bending band 121, which is bent outward and can produce elastic deformation. The bending band 121 is used to abut the opening edge 21 of the tank body 20 when the tank cover 11 closes the tank body 20. The bending band 121 includes a suspended outer edge portion 1211. The outer edge portion 1211 can move toward the abutment portion 111 following the deformation of the bending band 121 when the bending band 121 abuts the opening edge 21 of the tank body 20, so as to abut the abutment portion 111.

[0044] The structural principle of the water tank assembly 100 of the embodiment of the present application is as follows: when the tank cover 11 is connected to the tank body 20, the bending band 121 of the sealing ring 12 abuts the opening edge 21 of the tank body 20, thereby sealing the gap between the tank cover 11 and the tank body 20. The outer edge 1211 of the bending band 121 is suspended when the tank cover 11 and the tank body 20 are not connected. When the tank cover 11 and the tank body 20 are connected, the outer edge 1211 of the bending band 121 follows the deformation of the bending band 121 and abuts against the abutment portion 111 on the tank cover 11.

[0045] It can be understood that the water tank assembly 100 of the embodiment of the present application is provided with an abutting portion 111 that is adapted to the outer edge portion 1211 of the bending band 121, so that when the bending band 121 abuts the opening edge 21 of the box body 20, the abutting portion 111 can abut the outer edge portion 1211 of the bending band 121, and the outer edge portion 1211 of the bending band 121 actively moves toward the abutting portion 111 following the deformation of the bending band 121, thereby avoiding curling of the outer edge portion 1211 of the outer bending band 121, so as to ensure the sealing effect of the sealing ring 12.

[0046] In some embodiments, the box cover 11 and the box body 20 can be detachably connected by using one or a combination of connection methods such as hinge connection and snap connection.

[0047] See also Figure 2 、 Figure 4 、 Figure 5 and Figure 7In some embodiments, the housing 20 includes a hinge portion 22 and a snap portion 23, which are disposed opposite each other. The lid 11 includes a hinged engagement portion 114 and a snap engagement portion 115. The hinged engagement portion 114 is hingedly connected to the hinge portion 22, allowing the lid 11 to rotate relative to the housing 20 about the hinge axis of the hinge portion 22 when closing and opening the housing 20. The snap engagement portion 115 is disposed opposite the hinged engagement portion 114 and is configured to engage with the snap engagement portion 23 when the lid 11 closes the housing 20.

[0048] It will be appreciated that the water tank assembly 100 of the embodiment of the present application, through the hinged connection between the hinged fitting portion 114 and the hinged portion 22, allows the tank lid to rotate relative to the tank body 20 about the hinge axis of the hinged portion 22, thereby opening or closing the tank body 20. Furthermore, the embodiment of the present application provides a snap-fitting portion 115 on the opposite side of the hinged fitting portion 114, and a snap-fitting portion on the opposite side of the hinged portion 22, so that the snap-fitting portion 115 and the snap-fitting portion 23 are mated and connected when the tank lid 11 closes the tank body 20, and cooperate with the sealing ring 12 to lock and seal the tank body 20.

[0049] In one embodiment, the hinge portion 22 is a hinge axis disposed near the edge of the opening of the box body 20. The hinge-fitting portion 114 is a hinge hole that fits with the hinge axis, and the hinge hole is fitted over the hinge axis to achieve the hinge connection. The snap portion 23 is a hook disposed on the outer wall of the box body 20. The snap-fitting portion 115 is a latch hole that fits with the hook. The area on the box cover 11 where the latch hole is located is configured to produce a certain degree of elastic deformation. In actual use, the latch hole fits over the hook, and the edge of the latch hole is retained by the hook to cooperate with the sealing ring 12 to lock and seal the box body 20.

[0050] The water tank assembly 100 of the present embodiment is also easy to install and remove, making it more convenient for users to clean and maintain the water tank. The connection between the tank cover 11 and the tank body 20 adopts a combination of hinges and buckles, which not only ensures a stable connection but also enables quick removal, improving the user experience.

[0051] See also Figures 2 to 9 In some embodiments, the box cover 11 further includes an annular mounting groove 112, which is located inside the abutting portion 111. The sealing ring 12 further includes an annular mounting belt 122, which is mounted inside the mounting groove 112. The bending belt 121 further includes an inner edge portion 1212 and a bending portion 1213. The inner edge portion 1212 is connected to the inner edge of the mounting belt 122. The bending portion 1213 connects the inner edge portion 1212 and the outer edge portion 1211, respectively. The bending portion 1213 is configured to bend outward from the inner edge portion 1212 to the outer edge portion 1211. The bending portion 1213 is used to abut the opening edge 21 of the box body 20 when the box cover 11 is connected to the box body 20.

[0052] It is understood that the sealing ring 12 of the embodiment of the present application is provided with a mounting belt 122 and installed in the mounting groove 112 to ensure the stability of the overall structure of the sealing ring 12. For example, the mounting belt 122 is embedded in the mounting groove 112. Furthermore, the inner edge portion 1212 of the bending belt 121 is connected to the mounting belt 122. With the inner edge portion 1212 as the fulcrum, as the box cover 11 gradually covers and connects to the box body 20, the distance between the box cover 11 and the opening edge 21 of the box body 20 gradually decreases, and the bending portion 1213 is squeezed and deformed. Since the fixed fulcrum of the inner edge portion 1212 is located on the inner side of the mounting belt 122, the bending portion 1213 tends to deform toward the outside of the mounting belt 122, that is, it tends to deform toward the abutting portion 111 outside the mounting belt 122, so that the outer edge portion 1211 follows the deformation of the bending portion 1213 until it abuts the abutting portion 111 of the box cover 11.

[0053] Specifically, the inner edge portion 1212 , the bent portion 1213 and the outer edge all have corresponding supporting and connecting structures, so that the overall structure of the sealing ring 12 is more stable and the outer edge portion 1211 is prevented from curling inward.

[0054] In some embodiments, the thickness of the inner edge portion 1212 is greater than the thickness of the outer edge portion 1211 , and the thickness of the bent portion 1213 gradually decreases from the inner edge portion 1212 to the outer edge portion 1211 .

[0055] As will be appreciated, since the inner edge portion 1212 is connected to the mounting strap 122 and serves as the primary fulcrum of the bending strap 121, a relatively large thickness of the inner edge portion 1212 helps ensure overall structural strength. The thickness of the bending portion 1213 gradually decreases from the inner edge portion 1212 to the outer edge portion 1211, making it easier for the bending portion 1213 to deform toward the abutment portion 111. Furthermore, since the outer edge portion 1211 abuts the abutment portion 111 of the box cover 11, the bending portion 1213 gradually flattens under the pressure of the opening edge 21 of the box body 20, gradually increasing the effective contact area with the opening edge 21 of the box body 20 and thereby improving the sealing effect.

[0056] See also Figure 10 In some embodiments, in the bending structure of a conventional sealing ring 12, the horizontal distance between the inner edge portion 1212 and the outer edge portion 1211 is slightly larger than the width of the mounting band 122. However, compared with the bending band of the conventional sealing ring 12, the horizontal distance between the inner edge portion 1212 and the outer edge portion 1211 in the bending band 121 in the embodiment of the present application is much larger than the width of the mounting band 122.

[0057] Furthermore, compared with the bending structure of the conventional sealing ring 12, the bending strip 121 of the embodiment of the present application has a smaller maximum radial distance between the bending portion 1213 and the mounting strip 122, and the bending degree of the bending portion 1213 is more gentle.

[0058] Understandable, see Figure 10 The left side shows a conventional cross-section X-1 of the sealing ring 12, which is basically in an upright state. This way, when the lid is closed and squeezed, the reaction force is relatively large. However, the box body 20 is usually made of PP material, which is not rigid enough and easily deformed. Excessive reaction force may cause the box body 20 to be deformed. The right side shows a cross-section X-2 of the sealing ring 12 in the embodiment of the present application. By increasing the increment of the horizontal distance between the inner and outer edges compared to the width of the mounting strip 122, and reducing the maximum radial distance between the bent portion 1213 and the mounting strip 122, the reaction force originally applied by the bent portion 121 to the box body 20 is mostly aligned with the direction of deformation, driving the outer edge portion 1211 to move toward the abutment portion 111. Therefore, the reaction force applied to the box body 20 during pressing will be relatively small, which helps to reduce the deformation of the box body 20.

[0059] See also Figures 8 to 10 In some embodiments, the outer edge portion 1211 is provided with a contact arc surface 12111, and the contact portion 111 is provided with two intersecting contact straight surfaces 1111. The contact arc surface 12111 contacts at least one of the two contact straight surfaces 1111 when the box cover 11 is connected to the box body 20.

[0060] It is understood that the outer edge portion 1211 of the embodiment of the present application is provided with an abutting curved surface 12111, and the abutting portion 111 is provided with intersecting abutting straight surfaces 1111. When the box cover 11 is connected to the box body 20, the abutting curved surface 12111 of the outer edge portion 1211 abuts against one of the abutting straight surfaces 1111 of the abutting portion 111. As the distance between the box cover 11 and the box body 20 gradually decreases, the abutting curved surface 12111 will slide on one of the abutting straight surfaces 1111 in a direction away from the mounting belt 122 until it abuts against the other abutting straight surface 1111. At this time, the outer edge portion 1211 serves as another fulcrum of the bending belt 121 and, together with the inner edge portion 1212, supports the bending portion 1213.

[0061] Preferably, the abutting straight surfaces 111 of the abutting portion 111 are configured to be perpendicular to each other. In other embodiments, the abutting portion 111 and its abutting straight surface 111 can be configured according to actual needs, which is not limited here.

[0062] In addition, the abutting arc surface 12111 of the outer edge portion 1211 of the embodiment of the present application is beneficial to reducing the contact area between the various abutting straight surfaces 1111 of the abutting portion 111, thereby reducing the adhesion between the various abutting straight surfaces 1111 of the abutting portion 111, that is, when the box cover 11 is separated from the box body 20, the outer edge portion 1211 is easily separated from the abutting portion 111, which facilitates the bending portion 1213 to return to its initial state.

[0063] Furthermore, the straight end surface 12112 used in conventional bending structures has poor self-resistance to deformation and is more likely to curl inward following the deformation of the bending portion 1213 during pressing. However, the outer edge portion 1211 of the embodiment of the present application uses an abutting arc surface 12111. Due to the geometric characteristics of the abutting arc surface 12111, the force acting on the surface can be evenly distributed across the entire arc surface. At the same time, the mechanical structure is more stable, the internal stress distribution is relatively uniform, and the force acting during the deformation of the bending portion 1213 can be offset by the change in curvature, thereby helping to resist deformation. In other words, the outer edge portion 1211 has better self-resistance to deformation, which is specifically reflected in the outer edge portion 1211 following the deformation of the bending portion 1213 and moving toward the abutting portion 111, and is less likely to show a tendency to curl inward. Therefore, compared with conventional bending structures, the bending strip 121 of the embodiment of the present application can effectively avoid inward curling and can still ensure effective and good sealing after multiple bending deformations.

[0064] Since moisture is easily present between the outer edge portion 1211 and the abutting portion 111, in some embodiments, the outer surface of the outer edge portion 1211 is covered with a hydrophobic coating, and the hydrophobic coating reduces the surface tension of water, thereby reducing the adhesion of water to the solid surface, reducing the adhesion to the abutting portion 111 due to the surface tension of water, and making it easier to detach from the abutting portion 111.

[0065] See also Figure 11 In some embodiments, the box cover 11 further includes a handle 112 . A sink 113 is provided on the top of the box cover 11 . The handle 112 spans and is partially suspended above a bottom surface 1131 of the sink 113 .

[0066] It can be understood that the box cover 11 of the embodiment of the present application is provided with a handle 112 to facilitate the operator to perform extraction operations and carrying operations.

[0067] See also Figure 11 and Figure 12 In some embodiments, the sink 113 is a space enclosed by three circumferential surfaces and a bottom surface 1131. Two of the circumferential surfaces are disposed opposite each other, and another circumferential surface perpendicularly connects the two oppositely disposed circumferential surfaces. That is, the sink 113 has a gap in the circumference that communicates with the outside to prevent water accumulation and dirt deposition in the sink 113.

[0068] In some embodiments, one of the circumferential surfaces of the sink 113 is a curved surface 1132 that gradually transitions to a bottom surface 1131. This curved surface 1132 is arranged parallel or substantially parallel to the length direction L of the handle 112. The spacing between the handle 112 and either the curved surface 1132 or the bottom surface 1131 of the sink 113 is configured to at least allow an operator's fingers to pass through, thereby facilitating the operator's grip on the handle 112. In other embodiments, the specific structures of the sink 113 and the handle 112 can be configured based on actual needs and are not limited here.

[0069] See also Figure 11 and Figure 13 In some embodiments, any cross-section of the handle 112 perpendicular to the length direction L is a first arc segment structure 1123, and the outer edge of the first arc segment structure 1123 is closer to the bottom surface 1131 of the sink 113 than the inner edge.

[0070] As will be appreciated, the handle 112 of the present embodiment has an overall arc-shaped cross-section. This arc-shaped cross-section offers excellent bending resistance and can be made smaller than the rectangular cross-section of a conventional handle 112. Furthermore, the arc-shaped cross-section allows the handle 112 to better fit the operator's hand when gripping it, preventing constriction compared to the rectangular cross-section of a conventional handle 112, resulting in a more comfortable grip.

[0071] Please review Figures 11 to 13 In some embodiments, the sink 113 includes two opposing inner walls 1133, and the handle 112 includes a handle body 1121 and two root portions 1122. Each root portion 1122 connects to a corresponding inner wall 1133 and an end 11211 of the handle body 1121. The outer circumferential surface of each root portion 1122 is a curved surface that gradually expands outward from the end 11211 of the corresponding handle body 1121 to the corresponding inner wall 1133.

[0072] As will be appreciated, the two root portions 1122 of the present embodiment are located at either end of the handle 112 and are respectively connected to the handle body 1121. The outer circumferential surface of each root portion 1122 is a curved surface, and the outer circumferential surface gradually expands outward from the handle body 1121 to the corresponding inner wall surface 1133 to form an arc transition, thereby preventing stress concentration at the root portion 1122.

[0073] Please review Figure 11 and Figure 13 In some embodiments, any cross section of the handle body 1121 perpendicular to the width direction D is a second arc segment structure 11212. The outer edge of the second arc segment structure 11212 is closer to the bottom surface 1131 of the sink 113 than the inner edge.

[0074] Understandably, since the tank body 20 needs to be sealed and is mostly made of PP (polypropylene), if the handle 112 is not rigid enough when the operator lifts the water tank assembly 100, which is filled with water, it will pull on the entire tank cover 11, causing deformation. This will increase the gap between the tank cover 11 and the opening edge 21 of the tank body 20. As the liquid level in the tank body 20 fluctuates, leakage is likely to occur. Therefore, the entire handle 112 is designed to be curved in both the length direction L and the width direction D to enhance rigidity and resist deformation.

[0075] In a second aspect, embodiments of the present application further provide a base station, including the water tank assembly 100 of the aforementioned embodiment. This base station is a core device in the cleaning system, primarily responsible for charging the cleaning robot. By configuring the water tank assembly 100, the base station can also be responsible for cleaning the robot's mop, thereby improving the cleaning system's cleaning capabilities.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water tank assembly, characterized in that: include: Open box; A box cover, the box cover is used to cover the box body, and the box cover includes an annular abutment portion; as well as A sealing ring is installed on the box cover, and the abutment portion is circumferentially arranged around the sealing ring. The sealing ring includes an annular bending band, which is bent outward and can produce elastic deformation. The bending band is used to abut the opening edge of the box body when the box cover closes the box body. The bending band includes a suspended outer edge portion, and the outer edge portion can move toward the abutment portion following the deformation of the bending band when the bending band abuts the opening edge of the box body to abut the abutment portion.

2. The water tank assembly according to claim 1, characterized in that The box cover further includes an annular mounting groove, the mounting groove being located on the inner side of the abutting portion, the sealing ring further includes an annular mounting belt, the mounting belt being mounted in the mounting groove, and the bending belt further includes: an inner edge portion connected to an inner edge of the mounting belt; A bending portion, wherein the bending portion connects the inner edge portion and the outer edge portion respectively, and the bending portion is configured to bend outward from the inner edge portion to the outer edge portion, and the bending portion is used to abut the opening edge of the box body when the box cover is connected to the box body.

3. The water tank assembly according to claim 2, characterized in that: The thickness of the inner edge portion is greater than that of the outer edge portion, and the thickness of the bent portion gradually decreases from the inner edge portion to the outer edge portion.

4. The water tank assembly according to claim 3, characterized in that The outer edge portion is provided with an abutting arc surface, and the abutting portion is provided with two intersecting abutting straight surfaces. The abutting arc surface abuts at least one of the two abutting straight surfaces when the box cover is connected to the box body.

5. The water tank assembly according to claim 1, characterized in that The box cover also includes a handle. A sunken platform is provided on the top of the box cover. The handle spans and is partially suspended above the bottom surface of the sunken platform.

6. The water tank assembly according to claim 5, characterized in that: Any cross section of the handle perpendicular to the length direction is a first arc segment structure, and the outer edge of the first arc segment structure is closer to the bottom surface of the sink than the inner edge.

7. The water tank assembly according to claim 6, characterized in that The sink includes two inner wall surfaces arranged opposite to each other, and the handle includes: a handle body including two end portions; and There are two roots, each root is connected to a corresponding inner wall surface and a corresponding end of the handle body, and the outer circumferential surface of any root is an arc surface that gradually expands outward from the corresponding end of the handle body to the corresponding inner wall surface.

8. The water tank assembly according to claim 7, characterized in that Any cross section of the handle body perpendicular to the width direction is a second arc segment structure, and the outer edge of the second arc segment structure is closer to the bottom surface of the sink than the inner edge.

9. The water tank assembly according to claim 1, characterized in that The box body includes a hinge portion and a buckle portion, the hinge portion and the buckle portion are arranged opposite to each other, and the box cover includes: a hinged fitting portion, the hinged fitting portion being hingedly connected to the hinge portion, so that the box cover can rotate relative to the box body around a hinge axis of the hinge portion when closing and opening the box body; A snap-fit ​​portion is arranged opposite to the hinged fitting portion, and is used to be connected with the snap-fit ​​portion when the box cover closes the box body.

10. A base station, characterized in that: Comprising the water tank assembly according to any one of claims 1 to 9.

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