Anti-deformation shell and gas water heater

Abstract

This utility model belongs to the field of household appliance technology and discloses an anti-deformation shell and a gas water heater. The anti-deformation shell includes a first shell and a second shell. The first shell includes a first main plate, a first upper plate, a first lower plate, and two first side plates. The second shell includes a second main plate, a second upper plate, a second lower plate, and two second side plates. During installation, the second shell is inserted into the first shell, and the first upper plate and the second upper plate are connected to each other, as are the first lower plate and the second lower plate. Each end of the two first side plates is provided with a first bending plate that bends towards the first main plate. The first bending plate extends obliquely towards the corresponding first side plate, and the end of the first bending plate is provided with a first folded edge extending towards the inside of the first shell. This anti-deformation shell effectively prevents the first side plates from arching outwards and deforming, improving aesthetics and ensuring assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an anti-deformation shell and a gas water heater. Background Technology

[0002] The first and second shells of the gas water heater are both formed by bending sheet metal. When the first shell is placed on the second shell, the first upper plate of the first shell and the second upper plate of the second shell are connected to each other, and the first lower plate of the first shell and the second lower plate of the second shell are connected to each other. However, in order to maintain aesthetics, there is no connection between the first side plate of the first shell and the second side plate of the second shell. Due to the thinness of the sheet metal, the two first side plates of the first shell are prone to arching outward, loosening and deforming, resulting in a large gap between the first side plate and the second side plate. This affects the aesthetics and assembly quality on the one hand, and on the other hand, it can easily cause the shell assembly to loosen and generate vibration and noise. Utility Model Content

[0003] One of the technical problems to be solved by this utility model is to provide an anti-deformation shell, which can improve the assembly quality, reduce the probability of the anti-deformation shell becoming loose or deformed, and help reduce vibration and noise.

[0004] The second technical problem to be solved by this utility model is to provide a gas water heater that can improve assembly quality, reduce the probability of loosening and deformation of the anti-deformation shell, and help reduce vibration and noise.

[0005] The first technical problem mentioned above is solved by the following technical solution:

[0006] The anti-deformation shell includes a first shell and a second shell. The first shell includes a first main board, a first upper plate disposed at the upper end of the first main board, a first lower plate disposed at the lower end of the first main board, and first side plates disposed at both ends of the first main board. The second shell includes a second main board, a second upper plate disposed at the upper end of the second main board, a second lower plate disposed at the lower end of the second main board, and second side plates disposed at both ends of the second main board. The first upper plate and the second upper plate are connected to each other, and the first lower plate and the second lower plate are connected to each other.

[0007] Each of the two first side plates has a first bending plate at its end that bends toward the first main board. The first bending plate extends obliquely toward the corresponding first side plate, and the end of the first bending plate has a first folded edge extending toward the inside of the first housing.

[0008] The noise-reducing housing described in this utility model has the following advantages compared with the prior art:

[0009] By providing a first bending plate inclined toward the first side plate at the end of the first side plate, the first bending plate exerts a strong pulling force on the first side plate, which helps the first bending plate provide a strong anti-deformation capability for the first housing; and by providing a first folded edge extending toward the inside of the first housing at the end of the first bending plate, the second side plate can be limited by the first folded edge when the second housing is assembled with the first housing, so as to ensure that the assembly is in place.

[0010] In one embodiment, the ends of the two first bending plates are provided with barbs;

[0011] The barb portion includes a first folded edge and a second folded edge disposed at the end of the first folded edge and extending away from the first motherboard. The side of the first folded edge and the second folded edge facing away from the first motherboard forms a limiting hook groove, and the two second side plates are respectively limited within the two limiting grooves.

[0012] In one embodiment, the thickness of the first side plate is set to t, the distance between the first side plate and the first bent plate at the end away from the first main plate is set to a, and the included angle between the first side plate and the first bent plate is set to d.

[0013] a=(0.5~2)t, d=1°~4°.

[0014] In one embodiment, the distance between the first side plate and the first bent plate at the end closest to the first main plate is set to b;

[0015] b = 0 ~ t.

[0016] In one embodiment, both second side plates are provided with plug-in plates, and the first folded edge is provided with a plug-in interface, wherein the plug-in plate is plugged into the plug-in interface.

[0017] In one embodiment, each of the ends of the two second side plates is provided with a third folded edge extending toward each other, the third folded edge being confined within the corresponding limiting hook groove.

[0018] In one embodiment, the first upper plate is provided with a first protrusion protruding toward the first lower plate, and a recessed groove is provided on the side of the first protrusion away from the first lower plate. The second upper plate is provided with a first guide groove at a position corresponding to the first protrusion. The first protrusion and the first guide groove are slidably engaged and connected by a fastener, and the head of the fastener is located in the recessed groove.

[0019] In one embodiment, the first lower plate is provided with a second protrusion protruding toward the first upper plate, and the second lower plate is provided with a second guide groove, wherein the second protrusion and the second guide groove are slidably engaged.

[0020] In one embodiment, the upper and lower ends of the first side plate are respectively provided with a fourth folded edge and a fifth folded edge, the fourth folded edge being connected to the first upper plate and the fifth folded edge being connected to the first lower plate;

[0021] The second upper plate has a sixth folded edge on both sides, and the sixth folded edge is connected to the upper part of the corresponding second side plate; the second lower plate has a seventh folded edge on both sides, and the seventh folded edge is connected to the lower part of the corresponding second side plate.

[0022] The second technical problem mentioned above is solved by the following technical solution:

[0023] A gas water heater, including the anti-deformation housing described in any of the above embodiments.

[0024] The gas water heater described in this utility model has the following advantages compared with the prior art:

[0025] By incorporating the aforementioned anti-deformation shell, this gas water heater can prevent the first side plate of the first shell from arching outwards and deforming, thereby improving aesthetics and assembly quality. Attached Figure Description

[0026] Figure 1 This is an exploded view of the anti-deformation shell provided in this embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the first housing involved in the embodiment of this utility model;

[0028] Figure 3 This is a cross-sectional view of the first housing involved in the embodiment of this utility model;

[0029] Figure 4 yes Figure 3 Schematic diagram of the structure at point A;

[0030] Figure 5 This is a cross-sectional view of the anti-deformation shell provided in this embodiment of the utility model;

[0031] Figure 6 yes Figure 5 Enlarged view of the structure at point B.

[0032] In the picture:

[0033] 1. First housing; 11. First main board; 12. First upper plate; 121. First protrusion; 13. First lower plate; 131. Second protrusion; 14. First side plate; 141. First bending plate; 142. Hook portion; 1421. First folded edge; 1421a. Insertion interface; 1422. Second folded edge; 1423. Limiting hook groove; 143. Fourth folded edge; 144. Fifth folded edge;

[0034] 2. Second housing; 21. Second main board; 211. Air inlet; 22. Second upper plate; 221. First guide groove; 222. Sixth folded edge; 23. Second lower plate; 231. Second guide groove; 232. Seventh folded edge; 24. Second side plate; 241. Connecting plate; 242. Third folded edge;

[0035] 3. The third shell. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1-6 As shown, this utility model embodiment provides an anti-deformation shell, which includes a first shell 1 and a second shell 2. The first shell 1 includes a first main board 11, a first upper plate 12 disposed at the upper end of the first main board 11, a first lower plate 13 disposed at the lower end of the first main board 11, and first side plates 14 disposed at both ends of the first main board 11. The second shell 2 includes a second main board 21, a second upper plate 22 disposed at the upper end of the second main board 21, a second lower plate 23 disposed at the lower end of the second main board 21, and second side plates 24 disposed at both ends of the second main board 21.

[0041] During installation, the second housing 2 is inserted into the first housing 1, and the first upper plate 12 and the second upper plate 22 are connected to each other, and the first lower plate 13 and the second lower plate 23 are connected to each other; the ends of the two first side plates 14 are provided with a first bending plate 141 that bends toward the first side plate, the first bending plate 141 extends obliquely toward the corresponding first side plate 14, and the end of the first bending plate 141 is provided with a first folded edge 1421 that extends toward the inside of the first housing 1.

[0042] By providing a first bent plate 141 inclined toward the first side plate 14 at its end, the first bent plate 141 exerts a strong pulling force on the first side plate 14, which helps the first bent plate 141 provide strong anti-deformation capability for the first housing 1. Furthermore, by providing a first folded edge 1421 extending toward the inside of the first housing 1 at its end, the second side plate 24 can be limited by the first folded edge 1421 when the second housing 2 is assembled with the first housing 1, so as to ensure proper assembly.

[0043] Optionally, such as Figures 2-4 As shown, each of the two first bending plates 141 has a barb portion 142 at its end. The barb portion 142 includes a first folded edge 1421 located at the end of the first bending portion and extending toward the inside of the first housing 1, and a second folded edge 1422 located at the end of the first folded edge 1421 and extending away from the first main board 11. The side of the first folded edge 1421 and the second folded edge 1422 facing away from the first main board 11 forms a limiting hook groove 1423. The barb portion 142 is formed by bending on the first side plate 14, which avoids the deformation caused by welding and improves the overall integrity.

[0044] By providing barbs 142 on the inner surfaces of both first side plates 14, the two second side plates 24, when positioned between the two first side plates 14, can be confined within the limiting hook grooves 1423 of the two barbs 142. This allows the two second side plates 24 to exert a pulling force on the two first side plates 14 through the barbs 142, effectively preventing the first side plates 14 from arching outward and deforming, improving aesthetics and ensuring assembly quality. At the same time, due to the limiting effect of the barbs 142 on the second side plates 24, the fit between the first housing 1 and the second housing 2 can be made tighter, reducing the probability of loosening and deformation of the noise-reducing housing, which is beneficial for reducing vibration noise.

[0045] Optionally, the first bending plate 141 is inclined toward the corresponding first side plate 14, that is, both first bending plates 141 are inclined outward. In this structure, when the two second side plates 24 provide tensile force, the first bending plate 141 can provide strong anti-deformation ability, thereby making the first bending plate 141 exert a strong tensile force on the first side plate 14.

[0046] Specifically, the thickness of the first side plate 14 is set to t (in mm), the distance between the first side plate 14 and the first bent plate 141 at the end away from the first main plate 11 is a, the distance between the first side plate 14 and the first bent plate 141 at the end near the first main plate 11 is b, and the included angle between the first side plate 14 and the first bent plate 141 is d. It can be understood that the width h of the first bent plate 141 is determined according to the width of the second side plate 24, that is, to ensure that the second side plate 24 can extend into the limiting hook groove 1423. In order to ensure the edge strength of the first side plate 14 and the flatness of the first side plate 14, a is set to a = (0.5~2)t and d is set to d = 1°~4°, which can effectively prevent the first side plate 14 from arching.

[0047] Furthermore, b is set to b=0~t, that is, the end of the first bending plate 141 near the first main plate 11 is set to abut against the first side plate 14 or the distance between the end of the first bending plate 141 and the end of the first side plate 14 near the first main plate 11 does not exceed t. This structure enables the first bending plate 141 to support the first side plate 14 and prevents the first side plate 14 from denting inward when the anti-deformation shell falls.

[0048] Optionally, each end of the two second side plates 24 is provided with a plug-in plate 241, and the first folded edge 1421 is provided with a plug-in interface 1421a. When the second side plate 24 is confined within the limiting hook groove 1423, the plug-in plate 241 can be inserted into the plug-in interface 1421a. In this embodiment, each end of the second side plate 24 is provided with two spaced-apart plug-in plates 241, and each first folded edge 1421 is provided with two plug-in interfaces 1421a corresponding to the plug-in plates 241 respectively. In this structure, when the first housing 1 and the second housing 2 are assembled, the plug-in plates 241 and the plug-in interfaces 1421a cooperate with each other, so that the first housing 1 and the second housing 2 have a guiding and positioning function when assembled, and can also improve the strength of the first housing 1 and the second housing 2.

[0049] Optionally, such as Figures 5-6 As shown, each of the two second side plates 24 has a third flange 242 extending towards each other at its end, and the third flange 242 is confined within the corresponding limiting hook groove 1423. By providing the third flange 242 at the end of the second side plate 24, the structural strength of the second side plate 24 can be improved, enabling the second side plate 24 to have a stronger tensile force; and because of the third flange 242, the noise generated inside the noise reduction housing will be blocked and weakened by the third flange 242, which is beneficial to improving the sound insulation and noise reduction effect of the noise reduction housing.

[0050] In this embodiment, a receiving cavity is formed between the first housing 1 and the second housing 2. Components of a gas water heater, such as a burner, fan, and heat exchanger, are disposed within the receiving cavity. The second main board 21 is provided with an air inlet 211 that communicates with the receiving cavity. The anti-deformation housing also includes a third housing 3, which is disposed on the side of the second housing 2 away from the first housing 1, so that an air intake and noise reduction cavity is formed between the third housing 3 and the second housing 2.

[0051] Optionally, refer to Figures 1-2 As shown, the first upper plate 12 is provided with a first protrusion 121 protruding towards the first lower plate 13. Multiple first protrusions 121 can be provided. A recessed groove is provided on the side of the first protrusion 121 facing away from the first lower plate 13. A first guide groove 221 is provided at the position corresponding to the first protrusion 121 on the second upper plate 22. When the first upper plate 12 and the second upper plate 22 are connected, the first protrusion 121 can slide into and be confined within the first guide groove 221. A through hole is provided at the bottom of the first protrusion 121 in the recessed groove, and a threaded hole is provided at the bottom of the first guide groove 221. A fastener (optionally a screw) passes through the through hole and is screwed into the threaded hole, with the head of the fastener located within the recessed groove. When the first upper plate 12 and the second upper plate 22 are connected, the first guide groove 221 provides a guiding function, and the connection between the first upper plate 12 and the second upper plate 22 is stable. The head of the fastener being located within the recessed groove makes the design more aesthetically pleasing.

[0052] Optionally, the first lower plate 13 is provided with a second protrusion 131 protruding towards the first upper plate 12, and the second lower plate 23 is provided with a second guide groove 231. When the first lower plate 13 and the second lower plate 23 are connected, the second protrusion 131 can slide into and be confined within the second guide groove 231. In this structure, the second protrusion 131 and the second guide groove 231 cooperate with each other, so that the second guide groove 231 can play a guiding role during installation, making assembly more convenient and the connection more stable. Of course, the first lower plate 13 and the second lower plate 23 can also be connected using fasteners after the second protrusion 131 and the second guide groove 231 cooperate with each other.

[0053] Optionally, the upper and lower ends of the first side plate 14 are respectively provided with a fourth folded edge 143 and a fifth folded edge 144. The fourth folded edge 143 is attached and fixedly connected to the first upper plate 12 (can be welded), and the fifth folded edge 144 is attached and fixedly connected to the first lower plate 13 (can be welded). This structure can improve the structural strength of the first shell 1.

[0054] In this embodiment, both sides of the first upper plate 12 are provided with folded edges that are recessed into the accommodating cavity, and the fourth folded edges 143 of the two first side plates 14 are respectively attached, fixed and welded to the folded edges of the first upper plate 12.

[0055] Optionally, the second upper plate 22 is provided with a sixth folded edge 222 on both sides, and the sixth folded edge 222 is connected to the upper part of the corresponding second side plate 24 (can be welded); the second lower plate 23 is provided with a seventh folded edge 232 on both sides, and the seventh folded edge 232 is connected to the lower part of the corresponding second side plate 24 (can be welded); this structure can improve the structural strength of the second shell 2.

[0056] In order to balance cost and issues such as sealing or noise between the first housing 1 and the second housing 2, the width of the first upper plate 12 is greater than the width of the second upper plate 22 in the direction from the first main board 11 to the second main board 21, and the width of the two first side plates 14 is greater than the width of the two second side plates 24 respectively.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An anti-deformation shell, comprising a first shell (1) and a second shell (2), wherein the first shell (1) comprises a first main board (11), a first upper plate (12) disposed at the upper end of the first main board (11), a first lower plate (13) disposed at the lower end of the first main board (11), and first side plates (14) disposed at both ends of the first main board (11), wherein the second shell (2) comprises a second main board (21), a second upper plate (22) disposed at the upper end of the second main board (21), a second lower plate (23) disposed at the lower end of the second main board (21), and second side plates (24) disposed at both ends of the second main board (21), wherein the first upper plate (12) and the second upper plate (22) are connected to each other, and the first lower plate (13) and the second lower plate (23) are connected to each other; characterized in that Both ends of the first side plates (14) are provided with a first bending plate (141) that bends toward the first main plate (11). The first bending plate (141) extends obliquely toward the corresponding first side plate (14), and the end of the first bending plate (141) is provided with a first folded edge (1421) that extends toward the inside of the first housing (1).

2. The anti-deformation case according to claim 1, characterized by, The ends of the two first bending plates (141) are provided with barbs (142); The barb portion (142) includes a first folded edge (1421) and a second folded edge (1422) disposed at the end of the first folded edge (1421) and extending away from the first main board (11). The side of the first folded edge (1421) and the second folded edge (1422) facing away from the first main board (11) forms a limiting hook groove (1423), and the two second side plates (24) are respectively limited in the two limiting hook grooves (1423).

3. The anti-deformation case according to claim 1, characterized by, The thickness of the first side plate (14) is set to t, the distance between the first side plate (14) and the first bent plate (141) at the end away from the first main plate (11) is a, and the included angle between the first side plate (14) and the first bent plate (141) is d. a=(0.5~2)t, d=1°~4°.

4. The anti-deformation case according to claim 3, characterized by, The distance between the first side plate (14) and the first bent plate (141) at the end near the first main plate (11) is set to b; b = 0 ~ t.

5. The anti-deformation case according to claim 2, characterized by, Both second side plates (24) are provided with plug-in plates (241), and the first folded edge (1421) is provided with a plug-in interface (1421a). The plug-in plates (241) are plugged into the plug-in interface (1421a).

6. The anti-deformation case according to claim 2, characterized by, The ends of the two second side plates (24) are provided with opposing third folded edges (242), which are confined within the corresponding limiting hook grooves (1423).

7. The anti-deformation shell according to any one of claims 1-6, characterized in that, The first upper plate (12) is provided with a first protrusion (121) protruding toward the first lower plate (13). The first protrusion (121) is provided with a recessed groove on the side away from the first lower plate (13). The second upper plate (22) is provided with a first guide groove (221) at the position corresponding to the first protrusion (121). The first protrusion (121) and the first guide groove (221) are slidably engaged and connected by a fastener. The head of the fastener is located in the recessed groove.

8. The anti-deformation shell according to any one of claims 1-6, characterized in that, The first lower plate (13) is provided with a second protrusion (131) protruding toward the first upper plate (12), and the second lower plate (23) is provided with a second guide groove (231). The second protrusion (131) and the second guide groove (231) slide into each other.

9. The anti-deformation shell according to any one of claims 1-6, characterized in that, The upper and lower ends of the first side plate (14) are respectively provided with a fourth folded edge (143) and a fifth folded edge (144). The fourth folded edge (143) is connected to the first upper plate (12), and the fifth folded edge (144) is connected to the first lower plate (13). The second upper plate (22) has a sixth fold edge (222) on both sides, and the sixth fold edge (222) is connected to the upper part of the corresponding second side plate (24); the second lower plate (23) has a seventh fold edge (232) on both sides, and the seventh fold edge (232) is connected to the lower part of the corresponding second side plate (24).

10. A gas water heater characterised by, Includes the anti-deformation housing as described in any one of claims 1-9 above.

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