Integrally-formed gas water heater shell

Abstract

The utility model provides an integrally formed gas water heater shell which comprises a square shell body, the shell body comprises a bottom shell and a face cover covering the bottom shell, the bottom shell comprises a bottom plate, two end plates arranged oppositely and two side plates arranged oppositely, the two side plates are located on the left side and the right side of the bottom plate respectively, and the face cover is arranged on the bottom plate. The two end plates are located at the upper end and the lower end of the bottom plate respectively, the end plates, the side plates and the bottom plate are integrally formed, the end plates and the side plates are perpendicular to the bottom plate, the end plates and the side plates surround the periphery of the bottom plate to form a mounting groove, bent edges are arranged at the edges, connected with the end plates, of the side plates, and the bent edges are overlapped with the edges of the adjacent end plates. The bent edges are provided with limiting protrusions, limiting grooves are formed in the edges of the corresponding adjacent end plates, the shapes of the limiting protrusions are matched with the shapes of the limiting grooves, and the limiting protrusions are inlaid in the limiting grooves in an aligned mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas water heater field, especially relate to a integrally-formed gas water heater shell. BACKGROUND

[0002] The gas water heater includes a shell and functional components inside the shell, and the functional components inside mainly include a valve body assembly, a main burner, a small fire burner, a heat exchanger, a safety device and the like. When the water heater is used, a gas valve and a water inlet valve are first opened. When the water outlet valve is opened, an igniter and a microswitch control the small fire to be ignited first, and then the main fire is ignited. Some water heaters do not have the small fire, and the main fire can be directly ignited. The gas is combusted in the combustion chamber, and the heat is used to heat water through the heat exchanger, and the hot water continuously flows out from the water outlet. When the water outlet valve is closed, the water heater stops working.

[0003] The existing shell structure of the gas water heater usually includes a bottom cover assembly welded by multiple parts. In production, different-shaped bottom cover upper plates, bottom covers and bottom cover lower plates are assembled to form a cuboid shell, and the shell is connected after welding. However, the water heater shell welded by multiple parts has the following problems: a large number of manufacturing molds and parts are needed in the bottom cover assembly welding production, and the structure is complex; a plurality of processes need to be matched in the process of assembling the plate components to form the face cover and the bottom cover, the process is complex, and the production process is long; when the plate components abut, the position is prone to deviation, and it is not easy to fix; because the parts are separately manufactured, stored, transported and sprayed, the total manufacturing cost is high. SUMMARY

[0004] Therefore, it is necessary to provide an integrally-formed gas water heater shell.

[0005] To solve the above technical problems, the utility model provides an integrally-formed gas water heater shell, which comprises a square shell, the shell comprises a bottom shell and a face cover covering the bottom shell, the bottom shell comprises a bottom plate, two oppositely arranged end plates and two oppositely arranged side plates, the two side plates are respectively located on the left and right sides of the bottom plate, the two end plates are respectively located on the upper and lower ends of the bottom plate, the end plates and the side plates are integrally formed with the bottom plate, the end plates and the side plates are perpendicular to the bottom plate, the end plates and the side plates surround the four sides of the bottom plate to form a mounting groove, a bent edge is arranged on the edge of the side plate connected with the end plate, the bent edge is overlapped with the edge of the adjacent end plate, a limiting protrusion is arranged on the bent edge, a limiting groove is arranged on the edge of the adjacent end plate in correspondence, the shape of the limiting protrusion matches the shape of the limiting groove, and the limiting protrusion is inlaid in the limiting groove.

[0006] Preferably, the end plate has a first folded edge on its outer edge away from the base plate. The first folded edge is parallel to the base plate. The corresponding faceplate has a first abutting edge. The first folded edge and the first abutting edge overlap. The first folded edge has a notch. The corresponding first abutting edge has a bent snap-fit ​​piece. The snap-fit ​​piece engages with the notch.

[0007] Preferably, screw holes are respectively provided on the snap-fit ​​piece and at corresponding positions on the end plate, and fasteners are inserted into the screw holes to fix the snap-fit ​​piece to the end plate.

[0008] Preferably, a second folded edge is provided on the outer edge of the side plate away from the bottom plate. The second folded edge is parallel to the bottom plate. A second abutting edge is provided on the corresponding faceplate. The second folded edge and the second abutting edge overlap. An insertion hole is provided on the second folded edge. A bent insert is provided on the corresponding second abutting edge. The insert is inserted into the insertion hole.

[0009] Preferably, the base plate is provided with a groove protruding towards the outside of the mounting groove, and an air inlet is provided at the bottom of the groove. A flow guide baffle is provided on the base plate at the position of the groove, and the flow guide baffle is directly opposite the air inlet.

[0010] Preferably, the limiting protrusion is a cylindrical protrusion, and the limiting groove is a circular groove.

[0011] Preferably, the limiting protrusion is a cylindrical protrusion, and the limiting groove is a circular groove.

[0012] Preferably, the bottom shell is a one-piece molded five-fold plate made by bending.

[0013] Preferably, the upper end of the base plate is provided with an upper hanging plate, and the lower end of the base plate is provided with a lower hanging plate.

[0014] The beneficial effects of this utility model are as follows: The gas water heater shell provided in this application is composed of two parts: a bottom shell and a top cover, which are integrally formed by stamping raw materials. The bottom cover, the upper plate of the bottom cover, and the lower plate of the bottom cover are integrated into one piece, resulting in high material utilization. The number of parts is reduced, thus lowering the production cost. The production process is simple, with automated welding, which improves production efficiency. The model avoids the problems of increased costs and unstable structure caused by welding multiple parts together. Attached Figure Description

[0015] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the shell according to a preferred embodiment of the present invention;

[0017] Figure 2 This is a perspective view of the bottom shell of a preferred embodiment of the present invention;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 A front view of the bottom shell of the preferred embodiment of this utility model, with a flow guide baffle installed;

[0020] Figure 5 This is a schematic diagram of the structure of the face cover according to a preferred embodiment of the present invention;

[0021] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0022] Figure 7 This is a structural diagram of the limiting groove of the bottom shell in a preferred embodiment of the present invention;

[0023] In the figure: bottom shell 1; front cover 2; bottom plate 11; end plate 12; side plate 13; bent edge 4; limiting protrusion 5; limiting groove 6; first folded edge 7; notch 70; first contact edge 21; snap-fit ​​piece 210; screw hole 9; second folded edge 10; insertion hole 100; second contact edge 22; insert piece 220; groove 14; air inlet 15; guide baffle 16. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] refer to Figures 1-7 This utility model provides an integrally molded gas water heater shell, including a square shell. The shell includes a bottom shell 1 and a top cover 2 covering the bottom shell 1. The bottom shell 1 includes a bottom plate 11, two oppositely arranged end plates 12, and two oppositely arranged side plates 13. The two side plates 13 are respectively located on the left and right sides of the bottom plate 11, and the two end plates 12 are respectively located at the upper and lower ends of the bottom plate 11. The end plates 12 and side plates 13 are integrally molded with the bottom plate 11. Both the end plate 12 and the side plate 13 are perpendicular to the base plate 11. They surround the base plate 11 to form mounting grooves. A bent edge 4 is provided at the edge of the side plate 11 that connects to the end plate 12. The bent edge 4 overlaps with the edge of the adjacent end plate 12. A limiting protrusion 5 is provided on the bent edge 4, and a limiting groove 6 is provided at the corresponding edge of the adjacent end plate 12. The shape of the limiting protrusion 5 matches the shape of the limiting groove 6, and the limiting protrusion 5 is aligned and embedded within the limiting groove 6. The plane containing the bent edge 4 forms a stepped surface with the side plate 11, allowing the end plate 12 to precisely overlap with the bent edge 4. The gas water heater shell provided in this application consists of two parts: a bottom shell and a top cover, which are integrally formed by stamping raw materials. It integrates the bottom plate, end plate, and side plate into one piece, resulting in high material utilization. It reduces the number of parts and lowers manufacturing costs. The production process is simple, with automated welding, which improves production efficiency. It avoids the problems of increased costs and structural instability caused by welding multiple parts together.

[0028] In a preferred embodiment, the end plate 12 has a first folded edge 7 on its outer edge away from the base plate 11. The first folded edge 7 is parallel to the base plate 11. The corresponding face cover 2 has a first abutting edge 21. The first folded edge 7 and the first abutting edge 21 overlap. The first folded edge 7 has a notch 70. The corresponding first abutting edge 21 has a bent snap-fit ​​piece 210. The snap-fit ​​piece 210 engages with the notch 70.

[0029] In a preferred embodiment, screw holes 9 are respectively provided on the snap-fit ​​piece 210 and on the end plate 12 at corresponding positions, and fasteners are inserted into the screw holes 9 to fix the snap-fit ​​piece 210 and the end plate 12.

[0030] In a preferred embodiment, a second folded edge 10 is provided on the outer edge of the side plate 13 away from the bottom plate 11. The second folded edge 10 is parallel to the bottom plate 11. A second abutting edge 22 is provided on the corresponding face cover 2. The second folded edge 10 and the second abutting edge 22 overlap. An insertion hole 100 is provided on the second folded edge 10. A bent insert 220 is provided on the corresponding second abutting edge 22. The insert 220 is inserted into the insertion hole 100. The side plates 13 on the left and right sides of the bottom shell are folded to form the second folded edge 10. Each second folded edge 10 is designed with a slot formed by three insertion holes 100. The structure is used for left and right positioning and to ensure that the gap is small after the face cover 2 is fixed, thus ensuring the appearance effect.

[0031] In a preferred embodiment, the base plate 11 is provided with a groove 14 protruding towards the outside of the mounting groove, and an air inlet 15 is provided at the bottom of the groove 14. A flow guide baffle 16 is provided on the base plate 11 at the position of the groove 14, and the flow guide baffle 16 is directly opposite the air inlet 15.

[0032] refer to Figure 3 and Figure 7 In a preferred embodiment, the limiting protrusion 5 is a cylindrical protrusion, and the limiting groove 6 is a circular through groove.

[0033] In a preferred embodiment, the limiting protrusion 5 is a cylindrical protrusion, and the limiting groove 6 is a circular groove.

[0034] In a preferred embodiment, the bottom shell 1 is a one-piece molded five-fold plate made by bending.

[0035] In a preferred embodiment, an upper hanging plate is provided at the upper end of the base plate 11, and a lower hanging plate is provided at the lower end of the base plate 11. During assembly welding, it is only necessary to connect with the upper and lower hanging plates by screws, making the assembly relatively simple.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A one-piece molded gas water heater casing, characterized in that, The device includes a square housing, comprising a bottom shell and a top cover covering the bottom shell. The bottom shell includes a bottom plate, two oppositely arranged end plates, and two oppositely arranged side plates. The two side plates are located on the left and right sides of the bottom plate, respectively, and the two end plates are located at the top and bottom ends of the bottom plate, respectively. The end plates and side plates are integrally formed with the bottom plate and are perpendicular to the bottom plate. The end plates and side plates surround the bottom plate to form a mounting groove. A bent edge is provided at the edge of the side plate that connects to the end plate. The bent edge overlaps with the edge of the adjacent end plate. A limiting protrusion is provided on the bent edge, and a limiting groove is provided at the corresponding edge of the adjacent end plate. The shape of the limiting protrusion matches the shape of the limiting groove, and the limiting protrusion is aligned and embedded in the limiting groove.

2. The gas water heater casing as described in claim 1, characterized in that, The end plate has a first folded edge on its outer edge away from the base plate. The first folded edge is parallel to the base plate. The corresponding faceplate has a first abutting edge. The first folded edge and the first abutting edge overlap. The first folded edge has a notch. The corresponding first abutting edge has a bent snap-fit ​​piece. The snap-fit ​​piece engages with the notch.

3. The gas water heater casing as described in claim 2, characterized in that, Screw holes are respectively provided on the snap-fit ​​piece and at corresponding positions on the end plate. Fasteners are inserted into the screw holes to fix the snap-fit ​​piece to the end plate.

4. The gas water heater casing as described in claim 1, characterized in that, A second folded edge is provided on the outer edge of the side plate away from the bottom plate. The second folded edge is parallel to the bottom plate. A second abutting edge is provided on the corresponding faceplate. The second folded edge and the second abutting edge overlap. An insertion hole is provided on the second folded edge. A bent insert is provided on the corresponding second abutting edge. The insert is inserted into the insertion hole.

5. The gas water heater casing as described in claim 1, characterized in that, The base plate is provided with a groove protruding towards the outside of the mounting groove. An air inlet is opened at the bottom of the groove. A flow guide baffle is provided on the base plate at the position of the groove, and the flow guide baffle is directly opposite the air inlet.

6. The gas water heater casing as described in claim 1, characterized in that, The limiting protrusion is a cylindrical protrusion, and the limiting groove is a circular groove.

7. The gas water heater casing as described in claim 1, characterized in that, The limiting protrusion is a cylindrical protrusion, and the limiting groove is a circular through groove.

8. The gas water heater housing as described in claim 1, characterized in that, The bottom shell is made of a one-piece molded five-fold plate through bending.

9. The gas water heater casing as described in claim 1, characterized in that, The upper end of the base plate is provided with an upper hanging plate, and the lower end of the base plate is provided with a lower hanging plate.

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