Water tank components and water heater

Abstract

This utility model discloses a water tank assembly and a water heater. The water tank assembly includes a tank body, a cover, and fasteners. The tank body has a first limiting part and a first connecting part; the cover has a second limiting part and a second connecting part. The cover has a closed position. When the cover is in the closed position, the second limiting part and the first limiting part cooperate to limit the vertical movement of the cover relative to the tank body. The first connecting part and the second connecting part are connected by fasteners to fix the cover and the tank body. The fasteners are located on the front side of the tank body. This utility model uses the limiting cooperation of the first and second limiting parts and provides fasteners on the front side of the tank body. Locking and unlocking of the fasteners can be achieved simply by reserving an operating opening on the front side of the installation space, eliminating the need to reserve operating space all around the outer periphery of the water tank assembly, thus improving space utilization efficiency and adapting to the installation needs of small spaces such as cabinets.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a water tank assembly and a water heater. Background Technology

[0002] In related technologies, the water tank and cover of a water heater are connected to form a space for installing the electrical control structure. The traditional connection between the tank and cover is usually fastened with screws in multiple directions. Therefore, during the installation process, sufficient space needs to be reserved in each direction for screw tightening, which cannot meet the installation requirements of small installation spaces such as cabinets. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a water tank assembly that can achieve locking and unlocking of fasteners through an operating port reserved on the front side of the installation space, eliminating the need to reserve operating space all around the outer perimeter of the water tank assembly, thus improving space utilization efficiency and adapting to the installation needs of small spaces such as cabinets.

[0004] This utility model also provides a water heater having the above-mentioned water tank assembly.

[0005] In a first aspect, embodiments of this application provide a water tank assembly for a water heater, the water tank assembly including a tank body, a cover body and fasteners;

[0006] The housing is provided with a first limiting part and a first connecting part;

[0007] The cover is provided with a second limiting part and a second connecting part. The cover has a closed position. When the cover is in the closed position, the second limiting part cooperates with the first limiting part to limit the movement of the cover relative to the box in the vertical direction. The first connecting part and the second connecting part are connected by the fastener to fix the cover and the box.

[0008] The fastener is located on the front side of the cover.

[0009] The water tank assembly according to the present utility model has at least the following beneficial effects: by limiting the cooperation of the first limiting part and the second limiting part, fasteners are provided on the front side of the tank body; the fasteners can be locked and unlocked simply by reserving an operating port on the front side of the installation space, without having to reserve operating space all around the outer periphery of the water tank assembly, thus improving space utilization efficiency and adapting to the installation needs of small spaces such as cabinets.

[0010] According to the first aspect, in one possible implementation, the fastener has an operating end that protrudes from the front side of the cover.

[0011] According to the first aspect, in one possible implementation, the cover includes a first half-region and a second half-region, the second half-region being located behind the first half-region;

[0012] The first connecting portion is disposed in the first half-region, and at least one of the first limiting portions is disposed in the second half-region.

[0013] According to the first aspect, in one possible implementation, the cover is configured to rotate about the central axis of the water tank assembly to reach the closed position;

[0014] Alternatively, the cover is configured to move horizontally to reach the closed position.

[0015] According to the first aspect, in one possible implementation, the cover is configured to rotate forward along a first direction to reach the closed position, and the cover rotates in the opposite direction along the first direction to separate the second limiting portion from the first limiting portion. The cover is configured to move upward to separate from the tank body when the second limiting portion separates from the first limiting portion, wherein the first direction is a circumferential direction centered on the central axis of the water tank assembly.

[0016] According to the first aspect, in one possible implementation, the cover is configured to move backward to reach the closed position, and the cover moves forward to separate the second limiting portion from the first limiting portion and the cover from the box body.

[0017] According to the first aspect, in one possible implementation, the housing is further provided with a third limiting part, and the cover is further provided with a fourth limiting part;

[0018] When the cover is in the closed position, the fourth limiting part cooperates with the third limiting part to restrict the movement or rotation of the cover relative to the box in the horizontal direction, so as to align the first connecting part and the second connecting part.

[0019] According to the first aspect, in one possible implementation, the first limiting portion and the third limiting portion are connected as a single integral structure; and / or,

[0020] Both the second limiting part and the fourth limiting part are provided on the inner wall of the cover; and / or,

[0021] The second limiting part has a first end and a second end, the first end being connected to the fourth limiting part, and the second end forming a guide surface; and / or,

[0022] The fourth limiting part is connected to the second limiting part, and the fourth limiting part extends in a vertical direction; and / or,

[0023] The inner wall of the cover includes a top wall and an inner side wall, the second limiting part is disposed on the inner side wall, and the fourth limiting part is sequentially connected to the top wall, the inner side wall and the second limiting part.

[0024] According to the first aspect, in one possible implementation, the fasteners are configured as a plurality, with the central axes of each fastener arranged in parallel; and / or

[0025] The fastener and at least one of the first limiting portions are located on both sides of the dividing line.

[0026] Secondly, embodiments of this application also provide a water heater, which includes the water tank assembly described in the first aspect.

[0027] The water heater according to the present utility model embodiment has at least the following beneficial effects: by applying the above-mentioned water tank assembly, the fasteners can be locked and unlocked simply by reserving an operation port on the front side of the installation space, without having to reserve operation space all around the water tank assembly, thus improving space utilization efficiency and adapting to the installation needs of small spaces such as cabinets.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 This is a schematic diagram of the water tank assembly in one embodiment of the present invention;

[0031] Figure 2 This is a structural schematic diagram of the water tank assembly in its installation state according to an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the connection structure between the box body and the cover body in an embodiment of this utility model;

[0033] Figure 4 for Figure 3 A magnified schematic diagram of a portion of region A in the middle;

[0034] Figure 5 This is a schematic diagram of the structure of the box in an embodiment of this utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the cover in an embodiment of the present utility model;

[0036] Figure 7 This is a schematic diagram of the water tank assembly in another embodiment of the present invention.

[0037] Figure label:

[0038] 100. Water tank assembly;

[0039] 110. Housing; 111. Limiting component; 1111. First limiting part; 1112. Third limiting part; 1113. Mounting part; 1114. Support part; 112. First connecting part; 113. Guide protrusion; 114. Step surface;

[0040] 120. Cover; 120a. First half-section; 120b. Second half-section; 121. Second limiting part; 1211. Guide surface; 122. Second connecting part; 123. Fourth limiting part; 124. Base plate; 125. Side panel; 126. Connecting plate; 127. Reinforcing rib; 128. Guide groove;

[0041] 130. Fasteners;

[0042] 140. Decorative panels;

[0043] 201. Installation space; 202. Operating port; L1. Central axis; L2. Divider line. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0046] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0047] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0048] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The water tank and cover of the water heater are connected to form a space for installing the electrical control structure. The traditional connection between the tank and the cover is usually fastened with screws in multiple directions. Therefore, during the installation process, sufficient space needs to be reserved in each direction for screwing, which cannot meet the installation requirements of small installation spaces such as cabinets.

[0050] To address the aforementioned issues, this application provides a water heater, including a water tank assembly for storing and insulating water, and for transmitting water to any point of use via pipes.

[0051] The water heater also includes necessary or non-essential structures such as heat exchange components and compressors, which will not be described in detail in this application.

[0052] This application also provides a water tank assembly, such as Figures 1 to 4 As shown, in some embodiments, the water tank assembly 100 includes a tank body 110, a cover 120, and fasteners 130. The tank body 110 is provided with a first limiting part 1111 and a first connecting part 112, and the cover 120 is provided with a second limiting part 121 and a second connecting part 122. When the cover 120 is in the closed position, the second limiting part 121 cooperates with the first limiting part 1111 to effectively restrict the vertical movement of the cover 120 relative to the tank body 110, that is, the second limiting part 121 is stopped by the first limiting part 1111, preventing the cover 120 from moving upward and separating from the tank body 110; the first connecting part 112 and the second connecting part 122 are connected by the fasteners 130 to lock the cover 120 and the tank body 110.

[0053] Since the second limiting part 121 cooperates with the first limiting part 1111 to restrict the up and down movement of the cover 120, it can prevent the cover 120 from detaching from the box. In this embodiment, the fastener 130 only needs to limit the horizontal movement of the cover 120 or the rotation direction around the central axis L1 of the water tank assembly 100. By designing the fastener 130 on the front side of the box, the fastener 130 can be locked and unlocked simply by reserving an operation port 202 on the front side of the installation space 201. There is no need to reserve operation space all around the outer periphery of the water tank assembly 100, which improves the space utilization efficiency and thus adapts to the installation needs of small spaces such as cabinets.

[0054] In this case, locking can be achieved by setting only one or two fasteners 130, thereby reducing the number of locking operations required and improving assembly efficiency.

[0055] Fastener 130 has an operating end that protrudes from the front of cover 120; when fastener 130 is a screw, the screw tip serves as the operating end. By protruding the operating end from the front of cover 120, only an operating port 202 needs to be reserved on the front of the installation space 201 during the assembly of the water tank assembly 100. Workers can lock or unlock the fastener 130 through the operating port 202, eliminating the need to reserve operating space around the entire perimeter of the water tank assembly 100, thus improving space utilization efficiency and adapting to the installation needs of small spaces such as cabinets.

[0056] For ease of description, the cover 120 is divided into a first half-section 120a and a second half-section 120b. A virtual straight line passing through and perpendicular to the central axis L1 is defined as the dividing line L2. The side of the dividing line L2 facing the operating port 202 is defined as the front side, and the other side is defined as the rear side. The first half-section 120a is located in front of the dividing line L2, and the second half-section 120b is located in rear of the dividing line L2. As shown in the figure, the first connecting part 112 is located in the first half-section 120a. In this case, the fasteners 130 used to lock the first connecting part 112 and the second connecting part 122 are usually also located close to the front side. This layout can prevent the operator from inserting tools into the rear of the installation space 201 for operation, and facilitates direct access to the locking position from the operating port 202 for locking and unlocking operations.

[0057] Specifically, the fastener 130 can lock the top of the cover 120 and the housing 110 in the vertical direction. In this case, the locking position of the fastener 130 is set close to the operating port 202. The fastener 130 can also lock the side of the cover 120 and the housing 110 in the front-back direction. In this case, the operating end of the fastener 130, such as the head of the screw, should be facing the operating port 202. The operator can use tools to lock or unlock the fastener at the operating port 202.

[0058] When there is only one fastener 130, simply align the operating end of the fastener 130 towards the operating port. When there are two or more fasteners 130, all fasteners 130 are arranged in the same direction, meaning their central axes are parallel. This arrangement of fasteners 130 in the same direction allows for more efficient use of the space provided by the operating port 202. It avoids conflicts or waste of operating space caused by inconsistent fastener orientations. Furthermore, all fasteners 130 follow the same installation and removal process, eliminating the need for operators to frequently change tools or adjust their operating posture during operation.

[0059] Regardless of whether there are one, two, or more fasteners 130, the locking point of the fastener 130 is located only in the first half-zone 120a; and at least one first limiting part 1111 is provided in the second half-zone 120b, that is, the first limiting part 1111 and a second limiting part 121 are mutually limiting and engaged on the rear side of the dividing line L2. For ease of description, the mutually limiting and engaged first limiting part 1111 and second limiting part 121 are referred to below as a set of limiting structures. The fastener 130 and at least one set of limiting structures are provided on both sides of the dividing line L2, thereby providing at least two spaced limiting points in the outer peripheral direction of the cover 120. These limiting points act together on the cover 120 to ensure the stability and balance of the cover 120 in all directions. Even when the water tank assembly 100 is subjected to external forces or vibrations, the cover 120 can remain stable and prevent one side from tilting up.

[0060] Of course, multiple sets of limiting structures can also be set, with these structures spaced apart along the outer periphery of the cover 120. A limiting structure may or may not be set on the front side of the dividing line L2, but at least one limiting structure must be set on the rear side of the dividing line L2. This provides multiple limiting points on the outer periphery of the cover 120, further improving the stability and balance of the cover 120 in all directions.

[0061] The cover 120 can be placed on the tank 110 first, and then rotated about the central axis L1 of the water tank assembly 100 to reach the closed position, or the cover 120 can be moved backward to reach the closed position. Regardless of whether a rotating or sliding installation is used, the operating port 202 can be fully utilized. Specifically, rotating installation does not require additional peripheral space; the cover 120 can simply be rotated from the operating port 202. For sliding installation, due to its directional limitations, the space required for the cover 120 to slide is provided by the space outside the operating port 202; the cover 120 can simply be pushed backward from the operating port 202.

[0062] In the first example, the cover rotates about the central axis L1 of the water tank assembly 100. From a top-down perspective, the cover 120 rotates clockwise to reach the closed position, and the cover 120 rotates counterclockwise to disengage the second limiting part 121 from the first limiting part 1111.

[0063] Specifically, when assembling the cover 120, first move the cover 120 backward from the operating port 202 to above the housing 110, then move the cover 120 downward to place it on the housing 110, and then rotate the cover 120 clockwise to engage the second limiting part 121 with the first limiting part 1111, reaching the closed position. Conversely, when disassembling the cover 120, first rotate it counterclockwise to disengage the second limiting part 121 from the first limiting part 1111, then move the cover 120 upward to disengage it from the housing 110, and finally move the cover 120 forward to remove it from the operating port 202.

[0064] In this example, a certain space needs to be reserved at the top of the housing 110 to facilitate the disassembly and assembly of the cover 120; and the disassembly and assembly of the cover 120 and the locking of the fastener 130 can both be performed through the operation port 202.

[0065] In the second example, the cover 120 moves in the front-to-back direction on the box 110, that is, the cover 120 moves backward to the closed position, and the cover 120 moves forward to disengage the second limiting part 121 from the first limiting part 1111.

[0066] When assembling the cover 120, first place the cover 120 on the box 110 from the front, then move the cover 120 backward so that the second limiting part 121 engages with the first limiting part 1111 to reach the closed position. Conversely, when disassembling the cover 120, move the cover 120 forward so that the second limiting part 121 disengages from the first limiting part 1111, continue moving the cover 120 forward until it is completely detached from the box 110, and remove it from the operating port 202. In this example, the disassembly and assembly of the cover 120 and the locking of the fastener 130 can both be performed through the operating port 202.

[0067] In the second example, when there is a certain space at the top of the box 110, the cover 120 can be installed by moving it downward onto the box 110 and then moving it backward; and after the second limiting part 121 separates from the first limiting part 1111, the cover 120 is moved upward to separate it from the box 110; this application does not limit this.

[0068] Furthermore, the housing 110 can be provided with a third limiting part 1112, and the cover 120 can be provided with a fourth limiting part 123. Through the limiting cooperation of the third limiting part 1112 and the fourth limiting part 123, the rotation or translation of the cover 120 is restricted, clearly defining the endpoint position of the cover 120's movement in that direction, i.e., the closed position. When assembling the cover 120, the worker only needs to place the cover 120 on the housing 110, and then rotate it clockwise or move it backward. When the fourth limiting part 123 of the cover 120 encounters the obstruction of the third limiting part 1112 and cannot continue forward, it indicates that the cover 120 has reached the predetermined closed position. When the cover 120 is in the closed position, the first connecting part 112 and the second connecting part 122 will automatically align, allowing for direct locking of the fastener 130 without manual alignment adjustments. This further simplifies the assembly process and improves work efficiency.

[0069] The following description uses the example of the cover 120 rotating around the central axis L1 to reach the closed position to illustrate the structure of the box 110 and the cover 120.

[0070] like Figures 3 to 5 As shown, the housing 110 is provided with a first limiting part 1111, a third limiting part 1112, and a first connecting part 112. The first limiting part 1111 is matched with the second limiting part 121 to limit the axial movement of the cover 120. The third limiting part 1112 is matched with the fourth limiting part 123 to limit the circumferential movement of the cover 120. Thus, the closed position of the cover 120 is determined. When the cover 120 is in the closed position, the first connecting part 112 is aligned with the second connecting part 122, and the first connecting part 112 and the second connecting part 122 are connected by a fastener 130 to lock the housing 110 and the cover 120.

[0071] The first limiting part 1111 and the third limiting part 1112 are connected as a single structure, such as Figure 4 and Figure 5 As shown, in one embodiment, the first limiting part 1111 and the third limiting part 1112 are part of the structure of the limiting member 111.

[0072] Specifically, the limiting member 111 includes an installation part 1113, a support part 1114, a first limiting part 1111, and a third limiting part 1112.

[0073] The mounting part 1113 can be connected to the housing 110 by screws, snap-fit ​​structures, etc.; the support part 1114 is a bridge connecting the mounting part 1113 and the first limiter. The support part 1114 extends in a direction away from the housing 110, so that there is a gap between the first limiter part 1111 and the housing 110. The gap allows the second limiter part 121 to pass through, so that the second limiter part 121 and the first limiter part 1111 form an abutting fit, restricting the upward movement of the cover 120; the third limiter part 1112 is connected to one of the first limiter part 1111 and the support part 1114, and the third limiter part 1112 extends upward to provide a vertical stop surface, increasing the contact area with the fourth limiter part 123, realizing the limitation of the fourth limiter part 123, and determining the end point of the rotation of the cover 120, that is, the closed position.

[0074] The mounting part 1113 and the first limiting part 1111 are respectively disposed on both sides of the support part 1114. For example, the first limiting part 1111 is located on the outside of the support part 1114, and the mounting part 1113 is located inside the support part 1114; or the first limiting part 1111 is located on the inside of the support part 1114, and the mounting part 1113 is located on the outside of the support part 1114, thereby avoiding the first limiting part 1111 from blocking the mounting part 1113, and facilitating the fixing of the mounting part 1113 to the housing 110.

[0075] The first limiting part 1111 can be located on the outside of the support part 1114, thereby forming the above-mentioned gap on the outside of the support part 1114; the second limiting part 121 only needs to protrude from the inside of the cover 120, without the need for a complex connection structure.

[0076] The third limiting part 1112 can be connected to the first limiting part 1111 and located on the top surface of the first limiting part 1111; the third limiting part 1112 can also be connected to the first limiting part 1111 and located on the bottom surface of the first limiting part 1111. In this case, the second limiting part 121 and the fourth limiting part 123 can be integrated into one component, that is, as the second limiting part 121 is inserted, the end of the second limiting part 121 abuts against the third limiting part 1112. The third limiting part 1112 can also be connected to the support part 1114 and not directly connected to the first limiting part 1111; the third limiting part 1112 can also be connected to the first limiting part 1111 on one side and to the support part 1114 on the other side; this application does not limit the position of the third limiting part 1112.

[0077] like Figure 4 As shown, the third limiting part 1112 can be connected to the top surface of the first limiting part 1111 and located at one end of the first limiting part 1111. In this case, the entire limiting member 111 can be formed by bending a metal sheet.

[0078] In other embodiments, the first limiting part 1111 may be a limiting groove, limiting protrusion, buckle or other structure that cooperates with the second limiting part 121, and the second limiting part 121 may be a limiting groove, limiting protrusion, buckle or other structure that cooperates with the fourth limiting part 123. This application does not limit this.

[0079] like Figure 5 As shown, the housing 110 is also provided with a guide protrusion 113. The guide protrusion 113 has an arc-shaped outer wall with the central axis L1 as the center. When there is one guide protrusion 113, the guide protrusion 113 is a boss or ring structure formed on the top of the housing 110. When there are two or more guide protrusions 113, the outer walls of the multiple guide protrusions 113 are circular.

[0080] The housing 110 is also provided with a guide groove 128. When there is one guide groove 128, the guide groove 128 is a circular groove or annular groove formed on the top of the housing 110. When there are two or more guide grooves 128, the multiple guide grooves 128 are arranged in a circle.

[0081] In one embodiment, such as Figures 3 to 5 As shown, the housing 110 has a cylindrical boss serving as a guide protrusion 113. A stepped surface 114 is formed on the outer periphery of the boss. The cover 120 is fitted onto the outer side of the boss, with its bottom edge resting on the stepped surface 114. The first limiting part 1111 and the third limiting part 1112 can be limiting members 111 located on the top surface of the boss, or limiting protrusions or limiting grooves located on the sidewall of the boss. The first connecting part 112 is a threaded hole formed on the sidewall of the boss, and the fastener 130 is a screw that passes through the sidewall of the cover 120 and is threaded into the threaded hole.

[0082] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the cover 120 includes a second limiting part 121, a fourth limiting part 123, and a second connecting part 122. The second limiting part cooperates with the first limiting part to restrict the cover 120 along the axial direction, and the fourth limiting part 123 cooperates with the third limiting part 1112 to restrict the axial movement of the cover 120; thereby determining the closed position of the cover 120. When the cover 120 is in the closed position, the second connecting part 122 is aligned with the first connecting part 112, and the second connecting part 122 and the first connecting part 112 are connected by a fastener 130 to lock the cover 120 to the housing 110.

[0083] The cover 120 includes a base plate 124 and a side plate 125. The side plate 125 is connected to the edge of the base plate 124 and forms an inner cavity with an opening at the bottom. The side plate 125 can be fitted onto the outside of the boss to close the opening and form an installation space 201. The opening formed by the bottom of the side plate 125 can serve as a guide groove to cooperate with the boss on the housing 110 for radial limiting and guiding functions. Furthermore, the bottom edge of the side plate 125 rests on the stepped surface 114 on the outside of the boss. When rotating the cover 120, the height of the cover 120 does not need to be controlled, and the second limiting part 121 can automatically align with the first limiting part 1111.

[0084] In other embodiments, the bottom edge of the side panel 125 may be used as a guide, or a guide may be provided on the inner side of the side panel 125. The guide can cooperate with the guide groove on the housing 110 to achieve guidance. This application does not limit this.

[0085] like Figure 6 As shown, both the second limiting part 121 and the fourth limiting part 123 are connected to the inner wall of the side panel 125, which can improve the overall strength of the cover 120 and the connection stability of the second limiting part 121 and the fourth limiting part 123. When the top of the tank 110 has a boss, the side panel 125 can be fitted around the outside of the boss and smoothly transition with the outer contour of the tank 110, thereby improving the aesthetics of the water tank assembly 100.

[0086] like Figure 4 and Figure 6 As shown, the second limiting part 121 is a protrusion provided on the inner wall of the side panel 125. The second limiting part 121 has a first end and a second end. The second end of the second limiting part 121 is provided with a guide surface 1211. Since the stepped surface 114 cooperates with the bottom edge of the side panel 125, it restricts the downward movement of the cover 120. The guide surface 1211 is inclined downward. As the cover 120 rotates, the guide surface 1211 can contact the first limiting part 1111. Due to the inclined design of the guide surface 1211, the guide surface 1211 can guide the first limiting part 1111 to move along the direction of the guide surface 1211 until the first limiting part 1111 reaches above the second limiting part 121, restricting the upward movement of the cover 120. The first limiting part 1111 provides a certain downward pressure on the second limiting part 121, improving the stability and firmness of the cover 120 after installation.

[0087] The first end of the second limiting part 121 is connected to the fourth limiting part 123, and the fourth limiting part 123 can be blocked by the third limiting part 1112 as the cover 120 rotates. Specifically, before the cover 120 begins to rotate, the second limiting part 121 is usually located below or near the first limiting part 1111, while the fourth limiting part 123 is not in contact with the third limiting part 1112. As the cover 120 rotates, the second limiting part 121 moves along the direction of the first limiting part 1111. Due to the guidance of the guide surface 1211, the first limiting part 1111 gradually moves above the second limiting part 121 and exerts a downward pressure on the second limiting part 121. When the cover 120 continues to rotate to a certain position, the fourth limiting part 123 will contact the third limiting part 1112 and be blocked by it. At this time, the second limiting part 121 is stably positioned below the first limiting part 1111, and the cooperation between the fourth limiting part 123 and the third limiting part 1112 determines the rotation endpoint position of the cover 120, that is, the closed position.

[0088] The second connecting part 122 is a through hole provided on the side panel 125, and the fastener 130 is a screw. The fastener 130 can pass through the through hole and connect with the first connecting part 112 to lock the cover 120 and the box 110.

[0089] In other embodiments, the functions of the second limiting part 121 and the fourth limiting part 123 can be integrated on a protrusion, the top surface of the protrusion is limited and engaged with the first limiting part 1111, and the front end surface of the protrusion along the second direction is stopped by the third limiting part 1112; this application does not limit this.

[0090] In other embodiments, such as Figure 6 As shown, the cover 120 also includes a connecting plate 126 and a reinforcing rib 127. The connecting plate 126 is connected to the base plate 124 and located inside the side panel 125. The connecting plate 126 can be a multi-segment arc-shaped plate or a single ring-shaped plate. The reinforcing rib 127 connects the side panel 125, the base plate 124, and the connecting plate 126, thereby improving the overall strength of the cover 120 and reducing the deformation of the cover 120. Furthermore, one end of a portion of the reinforcing rib 127 away from the base plate 124 is connected to the second limiting portion 121, and when the cover 120 is rotated to the closed position, the reinforcing rib 127 stops at the fourth limiting portion 123. That is, in this embodiment, the portion of the reinforcing rib 127 connected to the second limiting portion 121 serves as the fourth limiting portion 123.

[0091] In addition, such as Figure 1 and 7 As shown, the water tank assembly 100 may further include a decorative panel 140, which is connected to at least one of the tank body 110 and the cover 120. Figure 1 and Figure 2As shown, fasteners 130 can be located on both sides of the decorative panel 140, or, as... Figure 7 As shown, the decorative panel 140 can conceal the fasteners, thereby further enhancing the aesthetics of the water tank assembly 100.

[0092] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A water tank assembly for a water heater, characterized in that, The water tank assembly includes a tank body, a cover, and fasteners; The housing is provided with a first limiting part and a first connecting part; The cover is provided with a second limiting part and a second connecting part. The cover has a closed position. When the cover is in the closed position, the second limiting part cooperates with the first limiting part to limit the movement of the cover relative to the box in the vertical direction. The first connecting part and the second connecting part are connected by the fastener to fix the cover and the box. The fastener is located on the front side of the cover.

2. The water tank assembly of claim 1, wherein, The fastener has an operating end that protrudes from the front side of the cover.

3. The water tank assembly of claim 1, wherein, The cover includes a first half-section and a second half-section, with the second half-section located behind the first half-section; The first connecting portion is disposed in the first half-region, and at least one of the first limiting portions is disposed in the second half-region.

4. The water tank assembly of claim 1, wherein, The cover is configured to rotate about the central axis of the water tank assembly to reach the closed position; Alternatively, the cover is configured to move horizontally to reach the closed position.

5. The water tank assembly of claim 4, wherein, The cover is configured to rotate forward along a first direction to reach the closed position, and the cover rotates in the opposite direction along the first direction to separate the second limiting portion from the first limiting portion. The cover is configured to move upward to separate from the tank body when the second limiting portion separates from the first limiting portion. The first direction is a circumferential direction centered on the central axis of the water tank assembly.

6. The water tank assembly of claim 4, wherein, The cover is configured to move backward to reach the closed position, and the cover moves forward to separate the second limiting portion from the first limiting portion and the cover from the box body.

7. The water tank assembly of claim 4, wherein, The box body is also provided with a third limiting part, and the cover body is also provided with a fourth limiting part; When the cover is in the closed position, the fourth limiting part cooperates with the third limiting part to restrict the movement or rotation of the cover relative to the box in the horizontal direction, so as to align the first connecting part and the second connecting part.

8. The water tank assembly of claim 7, wherein, The first limiting part and the third limiting part are connected as a single unit; and / or... Both the second limiting part and the fourth limiting part are provided on the inner wall of the cover; and / or, The second limiting part has a first end and a second end, the first end being connected to the fourth limiting part, and the second end forming a guide surface; and / or, The fourth limiting part is connected to the second limiting part, and the fourth limiting part extends in a vertical direction; and / or, The inner wall of the cover includes a top wall and an inner side wall, the second limiting part is disposed on the inner side wall, and the fourth limiting part is sequentially connected to the top wall, the inner side wall and the second limiting part.

9. The water tank assembly of claim 2, wherein, Of the box and the cover, one is provided with a guide protrusion and the other is provided with a guide groove, and the guide protrusion is slidably disposed in the guide groove.

10. A water heater, characterized by The water heater includes a water tank assembly according to any one of claims 1 to 9.

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