Flange seat, flange assembly and water heater

Abstract

The utility model relates to the technical field of household appliances, and provides a flange seat, a flange assembly and a water heater, the flange seat comprises a seat body and a limiting structure, the seat body comprises a mounting plate, and the mounting plate is provided with a mounting hole for a connecting piece to pass through; the limiting structure is connected to the seat body and is suitable for limiting the position of the connecting piece. When the flange seat is installed, the rod body of the connecting piece penetrates through the fixing hole, the limiting structure limits the position of the connecting piece, and the situation that the position of the connecting piece deviates or slides off in the process of screwing a matching piece, and the installation progress is affected is avoided; the limiting structure plays a role in supporting the connecting piece, one-hand operation is facilitated, the mounting position of the connecting piece can be quickly determined, and the mounting efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a flange seat, a flange assembly and a water heater. Background Art

[0002] The flange seat of the water heater is suitable for installing the heating pipe or the electric wall on the inner tank. The flange seat needs to be fixed on the inner tank through multiple connectors (such as bolts) and matching parts (such as nuts). Therefore, when assembling or disassembling the flange seat, it is necessary to tighten the nuts. During this process, it is easy to slip due to hand slippage, causing the bolts or nuts to slip off, affecting the efficiency of assembly and disassembly. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a flange seat, which can effectively prevent the connecting piece from slipping during the assembly process and improve the disassembly and assembly efficiency.

[0004] The utility model also discloses a flange assembly.

[0005] The utility model also discloses a water heater.

[0006] The utility model provides a flange seat, comprising:

[0007] The seat body comprises a mounting plate, wherein the mounting plate is provided with a mounting hole through which the connecting member can pass;

[0008] A limiting structure is connected to the seat body, and the limiting structure is suitable for limiting the position of the connecting member.

[0009] According to the flange seat of the embodiment of the utility model, the limiting structure includes a supporting portion, the supporting portion is connected to the seat body, and the supporting portion is arranged on one side of the mounting plate; the supporting portion is arranged corresponding to the mounting hole.

[0010] According to the flange seat of the embodiment of the utility model, the seat body also includes a surrounding plate, and the surrounding plate is connected to the peripheral side of the mounting plate; the supporting portion is arranged on the surrounding plate.

[0011] According to the flange seat of the embodiment of the utility model, the supporting portion is located on a side of the enclosure close to the mounting plate, and the enclosure forms blocking walls on both sides of the supporting portion.

[0012] According to the flange seat of the embodiment of the utility model, the height of the enclosure gradually increases from the middle to both sides, and the supporting part is arranged on both sides of the enclosure; the middle part of the enclosure is the part of the enclosure located on the spine axis of the inner tank, and the two sides of the enclosure are the two sides of the enclosure located on the spine axis of the inner tank.

[0013] According to the flange seat of the embodiment of the present utility model, the limiting structure includes a limiting spring piece, the limiting spring piece is connected to the seat body, and the limiting spring piece is suitable for limiting the position of the connector in the mounting hole.

[0014] According to the flange seat of the embodiment of the utility model, the end of the limiting spring piece is bent to form a limiting portion.

[0015] According to the flange seat of the embodiment of the utility model, the mounting hole includes a fixing hole corresponding to the rod body of the connecting member, and an assembly hole for the cap body of the connecting member to enter, and the fixing hole is connected to the assembly hole.

[0016] According to the flange seat of the embodiment of the utility model, the mounting holes are provided with at least two;

[0017] Each of the fixing holes is arranged on a side of the corresponding assembly hole close to the center of the flange seat;

[0018] or,

[0019] Each of the fixing holes is arranged on the same side of the corresponding assembly hole along the circumferential direction of the flange seat.

[0020] The utility model also provides a flange assembly, comprising the flange seat.

[0021] According to the flange assembly of the embodiment of the utility model, the flange assembly comprises a flange cover, the flange cover is arranged on the flange seat, and a snap-fit ​​gap is formed between the flange cover and the flange seat;

[0022] The snap-fit ​​gap is used to fix the heater of the water heater or the anti-electric wall;

[0023] and / or,

[0024] The flange assembly is fixed to the inner tank of the water heater through the snap-fit ​​gap.

[0025] The utility model also provides a water heater, comprising the above-mentioned flange seat or the above-mentioned flange assembly.

[0026] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0027] During installation, the rod of the connector passes through the fixing hole, and the limiting structure limits the position of the connector to prevent the connector from shifting or slipping during the process of tightening the mating parts, which would affect the installation process. The limiting structure supports the connector, facilitates one-handed operation, and is conducive to quickly determining the installation position of the connector, thereby improving installation efficiency and accuracy.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is one of the structural schematic diagrams of the flange seat provided in the embodiment of the utility model;

[0031] Figure 2 This is the second structural schematic diagram of the flange seat provided by the embodiment of the utility model;

[0032] Figure 3 This is the third structural schematic diagram of the flange seat provided in the embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of a water heater provided by an embodiment of the utility model;

[0034] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0035] Reference numerals:

[0036] 100, flange seat; 110, installation clearance;

[0037] 200, seat body; 210, mounting plate; 211, mounting hole; 2111, fixing hole; 2112, assembly hole; 220, enclosure; 221, blocking wall;

[0038] 300, supporting part;

[0039] 400, limiting spring piece; 410, limiting part;

[0040] 500, flange cover; 510, snap-fit ​​clearance;

[0041] 610, heater; 620, anti-electrical wall; 630, fixing seat; 631, first buckle;

[0042] 700, liner; 710, second buckle;

[0043] 800, connecting piece; 810, rod body; 820, cap body;

[0044] 900. Limiting structure. DETAILED DESCRIPTION

[0045] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0046] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0048] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] In the related art, the heating pipe or the anti-electrical wall is generally installed on the inner tank of the water heater through a flange seat. During the installation process, the flange seat needs to be fixed by multiple connecting parts (such as bolts) and matching parts (such as nuts). However, during the assembly process, the inner tank opening faces upward, and it is easy for the bolts or nuts to slip to the ground or slip into the inner tank through the opening due to hand slippage.

[0051] The first embodiment of the utility model provides a flange seat, see Figure 1 to Figure 2 , including a seat body 200 and a limiting structure 900 , the seat body 200 includes a mounting plate 210 , and the mounting plate 210 is provided with a mounting hole 211 for the connecting member 800 to pass through; the limiting structure 900 is connected to the seat body 200 , and the limiting structure 900 is suitable for limiting the position of the connecting member 800 .

[0052] During installation, the rod body 810 of the connecting piece 800 passes through the installation hole 211, and the limiting structure 900 limits the position of the connecting piece 800 to prevent the connecting piece 800 from shifting or slipping during the process of tightening the fitting, thereby affecting the installation process; the limiting structure 900 supports the connecting piece 800, making it convenient to tighten the fitting with one hand, which is conducive to quickly determining the installation position of the connecting piece 800 and improving installation efficiency and accuracy.

[0053] It can be understood that the limiting structure 900 is connected to the seat body 200. When the connecting member 800 passes through the mounting hole 211 on the mounting plate 210, the limiting structure 900 can limit the connecting member 800 without the need for additional tools. During operation, there is no need to install or adjust the position of the limiting structure 900, and the operation is simple and convenient, which is conducive to speeding up the installation of the flange seat 100. Due to the limiting effect of the limiting structure 900, the connecting member 800 is not easy to shift during the installation process, which can ensure the accurate installation of the connecting member 800. There is no need to manually fix the position of the connecting member 800 during operation, which is conducive to tightening the mating parts and increasing the stability of the installation.

[0054] It is understandable that the limiting structure 900 can support the connecting member 800 at the side thereof, or at the end thereof, or can support the connecting member 800 at the side thereof and at the end thereof at the same time. The limiting structure 900 can act on the cap body 820 of the connecting member 800, or on the rod body 810 of the connecting member 800, or can act on the cap body 820 and the rod body 810 of the connecting member 800 at the same time. The embodiment of the utility model does not impose any particular limitation on this.

[0055] In one embodiment, see Figure 1 The limiting structure 900 includes a supporting portion 300 , which is connected to the base body 200 . The supporting portion 300 is disposed on one side of the mounting plate 210 , and the supporting portion 300 is disposed corresponding to the mounting hole 211 .

[0056] It can be understood that the supporting portion 300 is arranged on one side of the mounting plate 210, and the supporting portion 300 is arranged corresponding to the mounting hole 211. When the connecting member 800 is inserted into the mounting hole 211 of the mounting plate 210, the supporting portion 300 located on one side supports the end of the connecting member 800 to prevent the connecting member 800 from falling directly into the inner liner 700 or on the ground due to accidental contact.

[0057] It is understandable that the supporting portion 300 can be block-shaped to increase the bearing capacity; the supporting portion 300 can also be sheet-shaped to reduce material; the supporting portion 300 can also be other irregular shapes. As long as the supporting portion 300 can support the connecting member 800, the embodiment of the utility model does not specifically limit the specific shape of the supporting portion 300.

[0058] In general, see Figure 1 , Figure 4 and Figure 5 The inner tank 700 of the water heater is cylindrical. After the connector 800 enters the mounting hole 211, the cap 820 of the connector 800 contacts the outer wall of the inner tank 700 due to gravity. During installation, the mounting holes 211 at different positions on the mounting plate 210 are at different distances from the surface of the inner tank 700, resulting in different lengths of the connectors 800 on the mounting holes 211 at different positions. If the connector 800 is too short, it may sink and cannot extend out of the mounting hole 211.

[0059] Generally, the rod body 810 of the connecting member 800 is a screw rod of a bolt, and the cap body 820 of the connecting member 800 is a nut of the bolt; of course, in other embodiments, the connecting member 800 and the matching member may also be other fixing members.

[0060] The embodiment of the utility model utilizes the supporting portion 300 to support the connecting member 800, thereby reducing the risk of the connecting member 800 slipping; the supporting portion 300 can be set at the same height of the base body 200, so as to ensure that after the connecting member 800 enters the mounting holes 211 at different positions, the lengths of each connecting member 800 extending out of the mounting holes 211 remain consistent, thereby preventing the connecting member 800 from sinking, and ensuring that after different connecting members 800 enter the mounting holes 211 at different positions, the lengths of each connecting member 800 extending out of the mounting holes 211 remain consistent, thereby facilitating installation.

[0061] See also Figure 1 , Figure 4 and Figure 5 In one embodiment, the seat body 200 also includes a surrounding plate 220, which is connected to the peripheral side of the mounting plate 210; the surrounding plate 220 supports the mounting plate 210, improves the stability of the seat body 200, prevents dust, impurities, water vapor, etc. from entering the interior of the seat body 200, and improves the sealing of the liner 700; the supporting portion 300 is arranged on the surrounding plate 220, which is convenient for supporting and limiting the end of the connecting member 800; an installation gap 110 is formed between the supporting portion 300 and the mounting plate 210, and a portion of the connecting member 800 is located in the installation gap 110. It can be understood that the width of the installation gap 110 is greater than the thickness of the cap body 820 of the connecting member 800, so as to prevent the supporting portion 300 from affecting the installation of the connecting member 800.

[0062] See also Figure 1 In one embodiment, at least a portion of the enclosure 220 is bent toward one side of the mounting hole 211 to form a supporting portion 300. The supporting portion 300 is formed by stamping the enclosure 220, so that a seat body 200 with high precision and accurate dimensions can be produced quickly and efficiently, thereby ensuring the quality of the flange seat 100. In addition, the stamping process can maximize the use of raw materials, reduce waste, and save costs, while also making the seat body 200 have higher strength and durability and a longer service life.

[0063] Of course, in other embodiments, the supporting portion 300 may also be welded to the enclosure 220 , and the embodiments of the present utility model are not limited to this.

[0064] See also Figure 1 In one embodiment, the supporting portion 300 is located on a side of the enclosure 220 close to the mounting plate 210 , and the enclosure 220 forms blocking walls 221 on both sides of the supporting portion 300 .

[0065] It can be understood that the blocking wall 221 further limits the cap body 820 of the connecting piece 800, preventing the connecting piece 800 from shifting its position during the installation process and falling out of the seat body 200; or, when the water heater is in use, if the mating parts are loose, the blocking wall 221 can limit the movement of the connecting piece 800 to a certain extent, preventing the connecting piece 800 from falling.

[0066] See also Figure 1 , Figure 4 and Figure 5 In one embodiment, the height of the enclosure 220 gradually increases from the middle to both sides, and the supporting parts 300 are arranged on both sides of the enclosure 220.

[0067] During installation, the opening of the inner tank 700 faces upwards and is located at the ridge of the inner tank 700, and the flange seat 100 is installed at the opening of the inner tank 700; wherein, the middle part of the enclosure 220 is the part of the enclosure 220 located at the ridge axis of the water heater, and the two sides of the enclosure 220 are the two sides of the enclosure 220 located at the ridge axis of the water heater.

[0068] It can be understood that since the inner liner 700 is cylindrical, the height of the enclosure 220 gradually increases from the middle to the two sides, so that the enclosure 220 can abut the outer wall of the inner liner 700, thereby improving the stability of the flange seat 100; accordingly, the thickness of the middle part of the enclosure 220 is relatively small, which can reduce the overall height of the flange seat 100 and reduce the footprint; the thickness of the two sides of the enclosure 220 is relatively large, and the supporting part 300 is arranged on both sides of the enclosure 220. By leveraging the supporting effect of the supporting part 300, the connecting piece 800 is prevented from sinking, thereby facilitating the screwing in of the mating piece.

[0069] See also Figure 2 and Figure 3 In one embodiment, the limiting structure 900 includes a limiting spring piece 400 , which is connected to the seat body 200 , and the limiting spring piece 400 is suitable for limiting the position of the connector 800 in the mounting hole 211 .

[0070] It is understandable that when the connector 800 is located in the mounting hole 211, the position of the connector 800 is limited by the limiting spring sheet 400, thereby reducing the risk of the connector 800 slipping off; when the connector 800 enters the mounting hole 211, the limiting spring sheet 400 is squeezed so that the cap body 820 of the connector 800 completely enters the mounting hole 211, and the limiting spring sheet 400 abuts against the connector 800 after being reset, thereby limiting the movement of the connector 800. The present application utilizes the elastic force of the limiting spring sheet 400 to apply an external force to the limiting spring sheet 400, causing it to deform elastically, thereby generating a certain resistance and resilience, thereby limiting the range of movement of the connector 800.

[0071] See also Figure 1 and Figure 5 In one embodiment, the mounting hole 211 includes a fixing hole 2111 corresponding to the rod body 810 of the connecting member 800 and an assembly hole 2112 for the cap body 820 of the connecting member 800 to enter, and the fixing hole 2111 and the assembly hole 2112 are connected.

[0072] It can be understood that during installation, the cap body 820 of the connecting member 800 enters the installation hole 211 through the assembly hole 2112, and then the connecting member 800 is moved into the fixing hole 2111. At this time, the cap body 820 of the connecting member 800 is located in the installation gap 110, and the rod body 810 of the connecting member 800 is inserted into the fixing hole 2111, thereby limiting the movement of the connecting member 800.

[0073] See also Figure 2 and Figure 3 In one embodiment, the limiting spring piece 400 can be connected to the edge of the assembly hole 2112, and the limiting spring piece 400 extends from the edge of the assembly hole 2112 to the fixing hole 2111; when the connecting member 800 enters the assembly hole 2112, it directly squeezes the limiting spring piece 400, and the limiting spring piece 400 is deformed. After the cap body 820 of the connecting member 800 enters the assembly hole 2112, the elasticity of the limiting spring piece 400 forms a thrust of the connecting member 800, pushing the rod body 810 of the connecting member 800 into the fixing hole 2111, so that the entire installation process is simple and smooth, and can be completed in one go.

[0074] See also Figure 3 In one embodiment, the end of the limiting spring sheet 400 is bent to form a limiting portion 410. When the connecting member 800 is located in the mounting hole 211, if the connecting member 800 is displaced by an external force, the limiting portion 410 can abut against the connecting member 800, thereby preventing the moving of the connecting member 800. The limiting portion 410 is formed by bending the limiting spring sheet 400, which can reduce the processing flow, maximize the use of raw materials, reduce waste, and save costs.

[0075] See also Figure 1 and Figure 3 The limiting spring piece 400, the mounting plate 210 and the enclosure 220 can be integrally formed, and the entire flange seat 100 can be manufactured in one process, which saves the time of multiple processes, greatly improves production efficiency, reduces the manpower and equipment consumption in the production process, and can reduce production costs. In addition, one-piece molding can usually maintain high processing accuracy and consistency, reduce errors introduced by multiple assemblies, and improve product quality. Similarly, the supporting portion 300, the mounting plate 210 and the enclosure 220 can also be integrally formed.

[0076] See also Figure 1 In one embodiment, the fixing hole 2111 is located in the axial direction of the flange seat 100 (eg Figure 1 The orthographic projection area of ​​the supporting portion 300 in the axial direction of the flange seat 100 is smaller than the orthographic projection area of ​​the supporting portion 300, which is beneficial for the supporting portion 300 to support the connecting member 800 and improve the stability of the connecting member 800 so that it can be better screwed into the mating member.

[0077] See also Figure 1 In one embodiment, at least two mounting holes 211 are provided; providing a plurality of mounting holes 211 can increase the installation stability of the flange seat 100 and prevent loosening or falling off under vibration or force conditions; the plurality of mounting holes 211 correspond to the plurality of connectors 800, and the plurality of connectors 800 can evenly fix the mounting seat, so that the load is better distributed, local stress concentration is reduced, and the bearing capacity of the structure is improved. At the same time, the risk of failure caused by single point failure is reduced.

[0078] See also Figure 1 In one embodiment, each fixing hole 2111 is arranged on a side of the corresponding assembly hole 2112 close to the center of the flange seat 100, thereby reducing the risk of the connecting member 800 moving toward the assembly hole 2112 after installation and preventing the connecting member 800 from slipping out of the assembly hole 2112; similarly, each fixing hole 2111 can also be arranged on a side of the corresponding assembly hole 2112 away from the center of the flange seat 100.

[0079] See also Figure 2 In one embodiment, when operating the connector 800, each fixing hole 2111 is arranged at a position corresponding to the assembly hole 2112 along the circumferential direction of the flange seat 100 (eg Figure 1 The same side of the b direction) makes it convenient for the operator to operate and makes the operation process smoother.

[0080] See also Figure 4 and Figure 5 The second aspect of the utility model also provides a flange assembly, including the above-mentioned flange seat 100.

[0081] It can be understood that if the flange seat 100 has the beneficial effects of the above-mentioned embodiment, then the flange assembly will correspondingly have the beneficial effects of the above-mentioned embodiment. The specific implementation method thereof may refer to the above-mentioned embodiment, and will not be described in detail in this application.

[0082] See also Figure 4 and Figure 5 In one embodiment, the flange assembly includes a flange cover 500, which is disposed on the flange seat 100. It is understood that the flange cover 500 is suitable for closing the gap between the tank opening and the heater 610 to prevent dust, water vapor, impurities, etc. from entering the inner tank 700. Generally, the flange cover 500 is mounted on the flange seat 100 through a plurality of connectors 800 and matching parts.

[0083] See also Figure 4 and Figure 5 In one embodiment, a snap-fit ​​gap 510 is formed between the flange cover 500 and the flange seat 100, and the snap-fit ​​gap 510 is used to fix the heater 610 or the anti-electricity wall 620 of the water heater; it can be understood that the heater 610 or the anti-electricity wall 620 has a fixing seat 630, and the fixing seat 630 is bent to form a first buckle 631, and the first buckle 631 is clamped in the snap-fit ​​gap 510 to fix the heater 610 or the anti-electricity wall 620.

[0084] In one embodiment, a snap-fit ​​gap 510 is formed between the flange cover 500 and the flange seat 100, and the flange assembly is fixed to the inner tank 700 of the water heater through the snap-fit ​​gap 510. It can be understood that the inner tank 700 is bent at the opening to form a second buckle 710, and the second buckle 710 is clamped in the snap-fit ​​gap 510 to fix the flange assembly to the inner tank 700 of the water heater.

[0085] Of course, in other embodiments, the heater 610 or the anti-electrical wall 620 can be fixed to the inner tank 700 by means of snaps or threads, and then the flange seat 100 can be directly fixed to the inner tank 700 by means of the connecting piece 800. The embodiment of the utility model does not specifically limit the connection method of the flange seat 100.

[0086] The third aspect of the present invention also provides a water heater, comprising the above-mentioned flange seat 100 or the above-mentioned flange assembly.

[0087] It can be understood that the flange seat 100 and the flange assembly have the beneficial effects of the above embodiments, and the water heater correspondingly has the beneficial effects of the above embodiments. The specific implementation methods thereof may refer to the above embodiments, and will not be described in detail in this application.

[0088] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A flange seat, characterized in that: include: The seat body comprises a mounting plate, wherein the mounting plate is provided with a mounting hole through which the connecting member can pass; A limiting structure, connected to the seat body, the limiting structure is suitable for limiting the position of the connecting member; The mounting hole comprises a fixing hole corresponding to the rod body of the connecting member, and an assembly hole for the cap body of the connecting member to enter, and the fixing hole is communicated with the assembly hole.

2. The flange seat according to claim 1, characterized in that: The limiting structure includes a supporting portion, the supporting portion is connected to the seat body, and the supporting portion is arranged on one side of the mounting plate; the supporting portion is arranged corresponding to the mounting hole.

3. The flange seat according to claim 2, characterized in that: The seat body also includes a surrounding plate, which is connected to the peripheral side of the mounting plate; the supporting portion is arranged on the surrounding plate.

4. The flange seat according to claim 3, characterized in that: The supporting portion is located on a side of the enclosure plate close to the mounting plate, and the enclosure plate forms blocking walls on both sides of the supporting portion.

5. The flange seat according to claim 3, characterized in that: The height of the enclosure increases gradually from the middle to both sides, and the supporting parts are arranged on both sides of the enclosure; the middle part of the enclosure is the part where the enclosure is located on the spine axis of the inner liner, and the two sides of the enclosure are the two sides where the enclosure is located on the spine axis of the inner liner.

6. The flange seat according to any one of claims 1 to 5, characterized in that: The limiting structure includes a limiting spring piece, the limiting spring piece is connected to the seat body, and the limiting spring piece is suitable for limiting the position of the connecting piece in the mounting hole.

7. The flange seat according to claim 6, characterized in that: The end of the limiting spring piece is bent to form a limiting portion.

8. The flange seat according to any one of claims 1 to 5, characterized in that: There are at least two mounting holes; Each of the fixing holes is arranged on a side of the corresponding assembly hole close to the center of the flange seat; or, Each of the fixing holes is arranged on the same side of the corresponding assembly hole along the circumferential direction of the flange seat.

9. A flange assembly, characterized in that: Comprising the flange seat according to any one of claims 1 to 8.

10. The flange assembly according to claim 9, characterized in that: The flange assembly comprises a flange cover, the flange cover is arranged on the flange seat, and a snap-fitting gap is formed between the flange cover and the flange seat; The snap-fit ​​gap is used to fix the heater of the water heater or the anti-electric wall; and / or, The flange assembly is fixed to the inner tank of the water heater through the snap-fit ​​gap.

11. A water heater, characterized in that: It comprises the flange seat according to any one of claims 1 to 8 or the flange assembly according to claim 10.

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