Buckle structure and water heater

Abstract

The utility model belongs to the technical field of water heaters, and discloses a buckle structure and a water heater. The buckle structure comprises a fixing piece and a clamping piece, a clamping cavity is formed in the fixing piece, an insertion opening communicated with the clamping cavity is formed in the fixing piece, and an elastic part is arranged in the clamping cavity; the clamping piece can be inserted into the clamping cavity through the insertion opening and abuts against the elastic part, and the elastic part can apply elastic force to the clamping piece to prevent the clamping piece from being separated from the clamping cavity. When foaming is carried out, the foaming material expands and enters the clamping cavity through the insertion opening, the foaming material makes contact with the elastic part, the elastic part is driven to deform, the elastic force provided by the elastic part is increased, and the elastic force can prevent the clamping piece from moving in the direction away from the clamping cavity; therefore, the anti-disengaging effect of the elastic part on the clamping piece is improved through the expansion stress of the foaming material, the fixing effect of the clamping piece and the fixing piece can be improved, and the situation that the foaming material overflows due to clamping failure is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a buckle structure and a water heater. Background Art

[0002] As a common electrical appliance in daily life, a water heater can heat cold water into hot water of suitable temperature for users to use. The water heater includes a casing and an electrical room casing, wherein the inner tank is arranged in the casing, and the electrical room casing is arranged on the casing, and the electrical room casing is used to install electrical components to control the operation of the water heater.

[0003] When preparing a water heater, it is necessary to inject foaming material between the casing and the inner tank to form an insulation layer. During the foaming process, the foaming material will expand and release a lot of stress, resulting in an unstable snap-on effect between the casing and the electrical room shell, which is prone to snap-off, connection failure, and foaming material overflow. Utility Model Content

[0004] The utility model aims to provide a buckle structure and a water heater, which can solve the problem of buckle disengagement and connection failure during the foaming process.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A buckle structure, comprising:

[0007] A fixing member, wherein the fixing member is formed with a clamping cavity, the fixing member is provided with an insertion port communicating with the clamping cavity, and an elastic portion is provided in the clamping cavity;

[0008] The clamping member can be inserted into the clamping cavity through the insertion port and abut against the elastic portion, and the elastic portion can apply an elastic force to the clamping member to prevent the clamping member from escaping from the clamping cavity.

[0009] As an optional solution of the above-mentioned snap-fit ​​structure, when the snap-fit ​​component is inserted into the snap-fit ​​cavity, a gap is formed between the snap-fit ​​component and the inner wall of the insertion port.

[0010] As an optional solution of the above-mentioned snap-fit ​​structure, one end of the elastic part is connected to a side of the snap-fit ​​cavity where the insertion port is provided, and the other end of the elastic part is in contact with the snap-fit ​​piece.

[0011] As an optional solution of the above-mentioned snap-fit ​​structure, the snap-fit ​​component includes an inserting arm and a locking protrusion protruding from the end of the inserting arm, and the locking protrusion can abut against the other end of the elastic part.

[0012] As an optional solution of the above-mentioned snap-fit ​​structure, the elastic parts are correspondingly arranged on two opposite sides of the insertion port, and the clamping member abuts against the elastic parts on both sides respectively.

[0013] As an optional solution of the above-mentioned buckle structure, the distance between the elastic parts on both sides gradually decreases in the direction away from the insertion port.

[0014] As an optional solution of the above-mentioned buckle structure, the elastic part is a spring sheet.

[0015] A water heater, comprising:

[0016] chassis;

[0017] An inner tank, disposed in the casing;

[0018] An electrical room housing is arranged on the housing and is used to install electrical components;

[0019] In the above-mentioned snap-fit ​​structure, one of the housing and the electrical room housing is provided with the fixing member, and the other is provided with the snap-fit ​​member.

[0020] As an optional solution of the above water heater, an annular mounting flange is provided at one end of the casing, the mounting flange is provided with the clamping piece, and the edge of the electrical room shell is stacked on the mounting flange.

[0021] As an optional solution of the above water heater, the casing includes an outer shell and an end cover, the end cover includes a U-shaped body and a mounting flange, the opening of the U-shaped body is arranged downward, the U-shaped body includes a top plate and an outer ring plate and an inner ring plate respectively connected to the top plate, the bottom end of the inner ring plate is connected to the mounting flange, the mounting flange is used to install the electrical room housing, and a groove is arranged on the top plate;

[0022] The shell comprises a cylinder, the end cover is arranged in the cylinder, the outer ring plate is connected to the inner wall of the cylinder, the end of the cylinder is bent toward the inner side of the cylinder to form a flange, and the flange abuts against the groove.

[0023] Beneficial effects of the utility model:

[0024] The buckle structure provided by the utility model includes a fixing member and a clamping member, wherein the fixing member is formed with a clamping cavity, an insertion port connected to the clamping cavity is provided on the fixing member, and an elastic part is provided in the clamping cavity; the clamping member can be inserted into the clamping cavity through the insertion port and abut against the elastic part, and the elastic part can exert an elastic force on the clamping member to prevent the clamping member from escaping from the clamping cavity. When foaming is performed, the foaming material will expand and enter the clamping cavity through the insertion port, and the foaming material will contact the elastic part, drive the elastic part to deform, and increase the elastic force provided by the elastic part, and the elastic force will prevent the clamping member from moving in the direction of escaping from the clamping cavity, thereby utilizing the expansion stress of the foaming material to increase the anti-detachment effect of the elastic part on the clamping member, which can improve the fixing effect of the clamping member and the fixing member, and avoid the overflow of the foaming material due to the failure of the clamping.

[0025] The water heater provided by the utility model adopts the above-mentioned buckle structure, which can avoid the problem of connection failure caused by the buckle structure being disengaged and the overflow of the foaming material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural schematic diagram of the water heater provided by the utility model;

[0027] Figure 2 yes Figure 1 A top view of

[0028] Figure 3 yes Figure 2 Middle AA section view;

[0029] Figure 4 It is a structural schematic diagram of the buckle structure provided by the utility model;

[0030] Figure 5 It is a cross-sectional view of the end cover and the housing of the electrical room provided by the utility model after being assembled;

[0031] Figure 6 It is a schematic diagram of the structure after the end cover provided by the utility model is assembled with the housing of the electrical room;

[0032] Figure 7 It is a structural schematic diagram of the end cover provided by the utility model;

[0033] Figure 8 It is a cross-sectional view of the electrical room housing provided by the utility model.

[0034] In the figure:

[0035] 10. Casing; 11. Outer shell; 111. Flanged edge; 12. End cover; 121. Top plate; 122. Inner ring plate; 123. Outer ring plate; 124. Mounting flange; 20. Electrical room housing; 21. Annular side plate; 22. Overlap plate; 23. Bottom plate; 231. Through hole; 40. Inner tank; 50. Snap-fit ​​structure; 51. Snap-fit ​​part; 52. Fixing part; 521. Box body; 5211. Insertion port; 522. Elastic part. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] This embodiment provides a water heater, such as Figure 1 and Figure 2As shown, the water heater includes a casing 10, an inner tank 40 and an electrical room casing 20. The inner tank 40 is arranged in the casing 10, and the electrical room casing 20 is arranged on the casing 10. The electrical room casing 20 is used to install electrical components, including but not limited to control components, power supply components, etc. The electrical components are used to control the start and stop of the water heater and working parameters.

[0041] In order to facilitate the disassembly, assembly and maintenance of the electrical room housing 20 , the electrical room housing 20 and the housing 10 are fixed by a snap-fit ​​structure 50 to simplify the structure and facilitate operation.

[0042] In order to improve the heat preservation effect of the inner tank 40 in the water heater, a heat preservation layer needs to be formed between the casing 10 and the inner tank 40 by foaming. The foaming material will expand and generate large stress during the foaming process. The stress is applied to the casing 10 and the electrical room housing 20, which may easily cause the casing 10 and the electrical room housing 20 to be disconnected and fail. The foaming material overflows into the electrical room housing 20, which may easily damage the electrical components and affect the yield rate of the water heater.

[0043] In order to solve the above problems, this embodiment further provides a buckle structure 50, which can solve the problem of loose connection or even failure caused by large stress generated by the expansion of the foam material.

[0044] like Figure 3 and Figure 4 As shown, the buckle structure 50 includes a fixing member 52 and a clamping member 51. The fixing member 52 can be arranged on the electrical room housing 20, and the clamping member 51 is arranged on the casing 10. The clamping member 51 can be clamped with the fixing member 52 to fix the casing 10 and the electrical room housing 20. The fixing member 52 includes a box body 521, a clamping cavity is formed in the box body 521, an insertion port 5211 communicating with the clamping cavity is arranged on the fixing member 52, and an elastic part 522 is arranged in the clamping cavity; the clamping member 51 can be inserted into the clamping cavity through the insertion port 5211 and abut against the elastic part 522, and the elastic part 522 can exert an elastic force on the clamping member 51 to prevent the clamping member 51 from escaping from the clamping cavity.

[0045] When foaming, the foaming material will expand and enter the snap-in cavity through the insertion port 5211. The foaming material will contact the elastic part 522, driving the elastic part 522 to deform, thereby increasing the elastic force provided by the elastic part 522. The elastic force will prevent the snap-in component 51 from moving in the direction of escaping from the snap-in cavity, thereby utilizing the expansion stress of the foaming material to increase the anti-detachment effect of the elastic part 522 on the snap-in component 51, thereby improving the fixing effect of the snap-in component 51 and the fixing component 52, and avoiding overflow of the foaming material due to snap-in failure.

[0046] In order to ensure that part of the foaming material can contact the elastic part 522 when it expands, thereby increasing the anti-detachment effect of the elastic part 522 on the clip 51, when the clip 51 is inserted into the clip cavity, a gap is formed between the clip 51 and the inner wall of the insertion port 5211. The foaming material can enter the clip cavity through the gap, thereby contacting the elastic part 522 to increase the deformation of the elastic part 522, thereby improving the anti-detachment effect of the clip 51.

[0047] like Figure 4 As shown, one end of the elastic part 522 is connected to the side of the clamping cavity provided with the insertion port 5211, and the other end of the elastic part 522 is used to abut against the clamping member 51. That is, the elastic part 522 extends from the insertion port 5211 to the inside of the clamping cavity, and the elastic force applied by the elastic part 522 to the clamping member 51 drives the clamping member 51 to extend into the inside of the clamping cavity, thereby achieving an anti-disengagement effect.

[0048] In order to improve the stability of the elastic part 522 when abutting against the clamping member 51, the clamping member 51 includes a plug arm and a clamping protrusion protruding from the end of the plug arm, and the clamping protrusion can abut against the other end of the elastic part 522. The plug arm can be a columnar or plate-shaped long strip structure, so that the plug arm can extend into the clamping cavity through the insertion port 5211. The clamping protrusion is a protruding structure protruding from the plug arm, so that the clamping protrusion can abut against the elastic part 522.

[0049] In this embodiment, the latching protrusion is disposed at the top end of the plug arm, and the bottom surface of the latching protrusion is used to abut against the free end of the elastic portion 522 to prevent the latching protrusion from passing downward through the insertion port 5211 and disengaging from the latching cavity.

[0050] In order to improve the anti-detachment effect of the elastic part 522 on the clamping member 51, the elastic parts 522 are provided on both opposite sides of the insertion port 5211, and the clamping member 51 abuts against the elastic parts 522 on both sides. By providing the elastic parts 522 on both sides of the clamping member 51, the elastic force can be increased, and the uniformity of the elastic force on the clamping member 51 can be improved, so as to improve the anti-detachment effect.

[0051] When the clamping member 51 extends into the clamping cavity, the elastic parts 522 on both sides surround an overflow area of ​​the foaming material, and the foaming material entering the clamping cavity through the gap is located between the elastic parts 522 on both sides, so as to cooperate with the elastic parts 522 on both sides respectively, ensuring that the expansion force of the foaming material on the elastic parts 522 on both sides is uniform, so that the clamping member 51 can maintain abutment cooperation with the elastic parts 522 on both sides.

[0052] like Figure 4 As shown, the cross section of the clamping protrusion is triangular, and the middle part of the bottom surface of the clamping protrusion is connected to the plug-in arm, so that the clamping protrusion protrudes from both sides of the clamping arm respectively, thereby respectively abutting against the two elastic parts 522.

[0053] In order to simplify the structure of the fixing member 52 , the elastic portion 522 may be a spring sheet, which may be bent and deformed after receiving a force, so as to provide an elastic force to the clamping member 51 .

[0054] Optionally, the elastic portion 522 may be integrally formed with the box body 521 , or may be fixed to the box body 521 by welding, screw connection, or the like.

[0055] In order to improve the anti-disengagement effect, the distance between the elastic parts 522 on both sides gradually decreases in the direction away from the insertion port 5211, that is, the distance between the bottom ends of the elastic parts 522 on both sides is large, and the distance between the top ends is small. When the clamping member 51 is inserted into the clamping cavity from the insertion port 5211, it first passes through the bottom end of the elastic part 522, and the distance between the bottom ends of the elastic parts 522 on both sides is large, which facilitates the insertion of the clamping member 51; then it passes through the top ends of the elastic parts 522 on both sides, and the distance between the top ends of the elastic parts 522 on both sides is small, and the elastic part 522 can be deformed by the abutment force between the clamping member 51 and the elastic part 522, thereby providing the clamping member 51 with an anti-disengagement elastic force through the elastic part 522.

[0056] like Figure 5 As shown, in this embodiment, the fixing member 52 is arranged on the electrical room shell 20, and the clamping member 51 is arranged on the casing 10. In other embodiments, the fixing member 52 can be arranged on the casing 10, and correspondingly, the clamping member 51 is arranged on the electrical room shell 20, and clamping fixation can also be achieved.

[0057] In order to improve the fixing effect of the housing 10 and the electrical room housing 20, an annular mounting flange 124 is provided at one end of the housing 10, a clamping member 51 is provided on the mounting flange 124, a circumferential edge of the electrical room housing 20 overlaps the mounting flange 124, and a fixing member 52 cooperates with the clamping member 51 to fix the housing 10 and the electrical room housing 20. By providing the mounting flange 124, the contact area between the housing 10 and the electrical room housing 20 can be increased to improve the fixing effect.

[0058] Specifically, combined Figure 3 and Figure 5 As shown, the housing 10 includes an outer shell 11 and an end cover 12. The outer shell 11 includes a cylinder, and the end cover 12 is arranged on one end surface of the cylinder and connected to the cylinder. Figure 5-Figure 7As shown, the end cover 12 includes a U-shaped body and a mounting flange 124, the opening of the U-shaped body is set downward, the U-shaped body includes a top plate 121 and an outer ring plate 123 and an inner ring plate 122 respectively connected to the top plate 121, the outer ring plate 123 is connected to the inner wall of the cylinder, and the bottom end of the inner ring plate 122 is connected to the mounting flange 124, and the mounting flange 124 is used to install the electrical room housing 20. The end cover 12 includes a U-shaped body and a mounting flange 124 connected in sequence, and has good overall strength, a large contact area between the outer ring plate 123 and the cylinder, and a good fixing effect of the end cover 12 and the housing 11. Optionally, the housing 11 and the end cover 12 can be fixed by welding.

[0059] Combination Figure 3 and Figure 6 As shown, a through hole 231 is provided on the electrical room housing 20, and the through hole 231 is opposite to the inner tank 40. The inner tank 40 can abut against the electrical room housing 20, and the axial end surface of the inner tank 40 is exposed through the through hole 231 to facilitate the installation of structures such as a heating tube in the inner tank 40.

[0060] In order to improve the fixing effect of the end cover 12 and the outer shell 11, a groove is provided on the top plate 121, and the end of the cylinder is bent toward the inner side of the cylinder with a flange 111, and the flange 111 abuts against the groove. The flange 111 cooperates with the groove to achieve axial positioning of the inner tank 40 and the housing 10. One end of the end cover 12 is supported by the electrical room housing 20, and the other end is abutted by the flange 111, thereby improving the position accuracy of the end cover 12 and preventing the end cover 12 from moving during the foaming process.

[0061] like Figure 8 As shown, the electrical room housing 20 includes a bottom plate 23, an annular side plate 21 and a lap plate 22. The bottom plate 23 is provided with a through hole 231 to expose the axial end of the inner tank 40. The annular side plate 21 is substantially vertically arranged with the bottom plate 23, and the bottom end of the annular side plate 21 is connected to the edge of the bottom plate 23. The lap plate 22 is connected to the top end of the annular side plate 21, and the lap plate 22 extends from the top of the annular side plate 21 to the outside of the annular side plate 21. The fixing member 52 is arranged on the lap plate 22. When the electrical room housing 20 is assembled with the end cover 12, as shown in FIG. Figure 5 As shown, the lap plate 22 is stacked on the mounting flange 124, the fixing member 52 is snap-fitted with the clamping member 51, the annular side plate 21 is abutted against the side of the mounting flange 124, and the bottom plate 23 is located below the mounting flange 124, so that the annular side plate 21 and the bottom plate 23 form a sunken trough structure for installing electrical components.

[0062] In this embodiment, the clamping member 51 can be integrally formed with the housing 10, for example, the clamping member 51 can be integrally formed with the end cover 12; the fixing member 52 can be integrally formed with the electrical room housing 20 to reduce the number of parts, reduce costs, and simplify the process.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A buckle structure, characterized in that: include: A fixing member (52), the fixing member (52) being formed with a clamping cavity, the fixing member (52) being provided with an insertion port (5211) communicating with the clamping cavity, and an elastic portion (522) being provided in the clamping cavity; A clamping member (51), wherein the clamping member (51) can be inserted into the clamping cavity through the insertion port (5211) and abut against the elastic portion (522), and the elastic portion (522) can exert an elastic force on the clamping member (51) to prevent the clamping member (51) from escaping from the clamping cavity.

2. The buckle structure according to claim 1, characterized in that: When the clamping member (51) is inserted into the clamping cavity, a gap is formed between the clamping member (51) and the inner wall of the insertion opening (5211).

3. The buckle structure according to claim 1, characterized in that: One end of the elastic part (522) is connected to a side of the clamping cavity where the insertion port (5211) is provided, and the other end of the elastic part (522) is in contact with the clamping member (51).

4. The buckle structure according to claim 3, characterized in that: The clamping member (51) comprises an inserting arm and a clamping protrusion protruding from the end of the inserting arm, and the clamping protrusion can abut against the other end of the elastic part (522).

5. The buckle structure according to claim 3, characterized in that: The elastic parts (522) are correspondingly arranged on two opposite sides of the insertion port (5211), and the clamping member (51) is respectively in contact with the elastic parts (522) on the two sides.

6. The buckle structure according to claim 5, characterized in that: The distance between the elastic parts (522) on both sides gradually decreases in a direction away from the insertion opening (5211).

7. The buckle structure according to any one of claims 1 to 6, characterized in that: The elastic portion (522) is a spring sheet.

8. A water heater, characterized in that: include: Housing (10); An inner container (40) is disposed in the casing (10); An electrical room housing (20) is arranged on the housing (10), and the electrical room housing (20) is used to install electrical components; According to the snap-fit ​​structure as claimed in any one of claims 1 to 7, one of the housing (10) and the electrical room housing (20) is provided with the fixing member (52), and the other is provided with the snap-fit ​​member (51).

9. The water heater according to claim 8, characterized in that: An annular mounting flange (124) is provided at one end of the casing (10), the mounting flange (124) is provided with the clamping member (51), and the edge of the electrical room housing (20) is stacked on the mounting flange (124).

10. The water heater according to claim 8, characterized in that The casing (10) comprises an outer shell (11) and an end cover (12); the end cover (12) comprises a U-shaped body and a mounting flange (124); the opening of the U-shaped body is arranged downward; the U-shaped body comprises a top plate (121) and an outer ring plate (123) and an inner ring plate (122) respectively connected to the top plate (121); the bottom end of the inner ring plate (122) is connected to the mounting flange (124); the mounting flange (124) is used to mount the electrical room housing (20); and a groove is arranged on the top plate (121); The outer shell (11) comprises a cylinder, the end cover (12) is arranged in the cylinder, the outer ring plate (123) is connected to the inner wall of the cylinder, and the end of the cylinder is bent toward the inner side of the cylinder to form a flange (111), and the flange (111) abuts against the groove.

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