Connecting structure of outer box shell and inner container of a circular-arc box

Abstract

The utility model relates to a kind of outer box shell and inner container connecting structure of arc box, it includes outer box shell, inner container and outer box face frame, the top left and right ends of outer box shell are arc transition structure, the leading edge of outer box shell is bent inward to form flanging, flanging is close to the inner side wall of outer box shell, multiple riveting parts are evenly distributed on flanging, the outside of outer box face frame is equipped with outer plate body, the position of riveting part is opened with connecting hole in outer plate body, outer plate body is close to flanging setting, riveting part is riveted and fixed with outer plate body through connecting hole, the inside of outer box face frame is equipped with roll groove, the outer edge of inner container is equipped with the embedded edge of roll groove butt joint, the inside of outer box face frame is equipped with left frame, upper frame and has frame splicing component.This structure effectively reduces enterprise production cost and recovery cost;In addition, using the structure can ensure the unity of each arc box structure, it is beneficial to realize the serialization production of product.

Description

Technical Field

[0001] This utility model relates to a connection structure between the outer shell and the inner liner of an arc-shaped box. Background Technology

[0002] Currently, for refrigerated display cases with a rounded outer casing, the inner liner needs to be assembled with the outer casing frame during manufacturing. The connection between the outer casing and the outer casing frame is welded, then polished, and finally sprayed to ensure that there are no polishing marks left at the connection between the outer casing and the outer casing frame. This process makes the coating coating easily scratched and damaged during later handling and transportation, leading to the scrapping of the outer casing and outer casing frame, resulting in excessively high production and recycling costs for enterprises. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems and provide a connection structure between the outer shell and the inner liner of an arc-shaped box, which simplifies the connection structure between the outer shell and the outer frame and solves the problem of scratches.

[0004] To achieve the above objectives, this utility model provides a connection structure between the outer shell and inner liner of an arc-shaped box, comprising an outer shell, an inner liner, and an outer frame. The top left and right ends of the outer shell are arc-shaped transition structures, and the leading edge of the outer shell is bent inward to form a flange. The flange is tightly attached to the inner side wall of the outer shell, and multiple riveting parts are evenly distributed on the flange. An outer plate is provided on the outer side of the outer frame, and connecting holes are opened on the outer plate corresponding to the positions of the riveting parts. The outer plate is tightly attached to the flange, and the riveting parts pass through the connecting holes and are riveted and fixed to the outer plate. A roller groove is provided on the inner side of the outer frame, and an embedded edge that mates with the roller groove is provided on the outer edge of the inner liner. The outer frame is composed of a left frame, a top frame, and a right frame spliced ​​together.

[0005] In one or more embodiments, the inner edge of the outer casing frame is formed by bending to create the roller groove.

[0006] In one or more embodiments, the outer edge of the outer casing frame is bent to form the outer panel, and the outer panel is perpendicular to the front side of the outer casing frame.

[0007] In one or more embodiments, the riveting portion is T-shaped, and the riveting portion and the flange are an integral structure.

[0008] In one or more embodiments, the riveting portion presses against the inner wall of the outer panel and the outer casing.

[0009] In one or more embodiments, the insert edge has a concave step that abuts against the groove of the roller groove, and the insert edge is a multi-segment bending structure.

[0010] In one or more embodiments, the outer casing is composed of a single-piece left side plate, a top plate, and a right side plate, and the outer casing is a stainless steel outer casing, an aluminum alloy outer casing, or a sheet metal outer casing.

[0011] Compared with the prior art, the advantages of this utility model are: the outer box frame and the outer box shell are riveted and fixed together by the riveting part, and the flange on the outer box shell is closely attached to the outer plate to ensure the tightness of the connection between the two. This eliminates the grinding and painting process after welding, which not only simplifies the production process, but also reduces the scrap rate caused by later scratches, effectively reducing the enterprise's production cost and recycling cost. In addition, the use of this structure can ensure the uniformity of each arc-shaped box structure, which is conducive to realizing the serialized production of products. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the arc-shaped box in this embodiment;

[0013] Figure 2 This is a structural diagram of the outer shell, inner liner, and outer frame before assembly in this embodiment;

[0014] Figure 3 This is a cross-sectional view of the connection between the left side panel of the outer casing and the outer casing frame and inner liner in this embodiment;

[0015] Figure 4 This is a cross-sectional view of the connection between the top plate of the outer casing and the outer casing frame and inner liner in this embodiment. Detailed Implementation

[0016] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0017] Please refer to the appendix. Figure 1-4This application provides a connection structure between the outer shell and inner liner of an arc-shaped box, which includes an outer shell 1, an inner liner 2, and an outer frame 3. The outer frame 3 is a split structure, specifically, it is composed of a left frame 301, a top frame 302, and a right frame 303. The top left and right ends of the outer shell 1 are arc-shaped transition structures 4. The front edge of the outer shell 1 is bent inward to form a flange 5. The flange 5 is close to the inner sidewall of the outer shell 1. The flange 5 can strengthen the structural strength of the front edge of the outer shell 1, making it less prone to deformation and twisting. Multiple riveting parts 6 are evenly distributed on the flange 5. The flange 5 runs along the left side of the outer shell and onto the upper part of the vehicle. The outer side of the outer box frame 3 is provided with an outer plate 31. The outer plate 31 has a connecting hole 7 at the position corresponding to the riveting part 6. The outer plate 31 is set close to the flange 5 to improve the tightness of the connection between the outer box shell and the outer box frame. The riveting part 6 passes through the connecting hole 7 and is riveted to the outer plate 31. Specifically, after the riveting part passes through the connecting hole, it is riveted to the outer plate by bending. The riveting part is close to the outer plate. The inner side of the outer box frame 3 is provided with a roller groove 8. The outer edge of the inner liner 2 is provided with an inserting edge 9 that mates with the roller groove 8. The inner liner 2 is fixed to the outer box frame by the inserting edge 9.

[0018] The inner edge of the outer box frame 3 is bent to form the roller groove 8. The bent roller groove 8 opens towards the inner liner so that the insert edge 9 can be inserted.

[0019] The outer edge of the outer box frame 3 is bent to form the outer plate 31. The outer plate 31 is perpendicular to the front side of the outer box frame 3. The bent outer plate has a tighter structure with the outer box frame and better structural stability.

[0020] The riveting part 6 is in the shape of a "T". The riveting part 6 and the flange 5 are an integral structure. The "T" shaped riveting part has a larger riveting area and is riveted and fixed to the outer plate 31, making the structure after the outer shell and the outer frame are assembled more stable.

[0021] The riveting part 6 presses against the inner wall of the outer plate 31 and the outer shell 1. After the riveting part is riveted to the outer plate 31, its length extends to the inner wall of the outer shell 1. The extra length is used to rivet the outer shell 1, which further improves the structural stability of the outer shell and the outer frame after assembly.

[0022] The embedded edge 9 has a concave step 91 that abuts against the groove of the roller groove 8, ensuring that the inner liner 2 is installed in place. The embedded edge 9 has a multi-segment bending structure, which can enhance the structural strength of the embedded edge.

[0023] The outer casing 1 is composed of a single-piece left side plate 101, a top plate 102, and a right side plate 103. The outer casing 1 can be made of stainless steel, aluminum alloy, or sheet metal. The specific material can be selected according to actual needs, and no restrictions are imposed here.

[0024] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A connection structure between the outer shell and inner liner of an arc-shaped box, characterized in that: The outer casing includes an outer shell (1), an inner liner (2), and an outer frame (3). The top left and right ends of the outer shell (1) are arc-shaped transition structures (4). The front edge of the outer shell (1) is bent inward to form a flange (5). The flange (5) is close to the inner wall of the outer shell (1). Multiple rivet parts (6) are evenly distributed on the flange (5). The outer frame (3) is provided with an outer plate (31) on the outside. The outer plate (31) corresponds to the position of the rivet parts (6). The outer panel (31) is set close to the flange (5) with a connecting hole (7). The riveting part (6) passes through the connecting hole (7) and is riveted to the outer panel (31). The inner side of the outer box frame (3) is provided with a roller groove (8). The outer edge of the inner liner (2) is provided with an embedded edge (9) that mates with the roller groove (8). The outer box frame (3) is composed of a left side frame (301), a top side frame (302) and a side frame (303).

2. The connection structure between the outer shell and inner liner of an arc-shaped box according to claim 1, characterized in that: The inner edge of the outer box frame (3) is bent to form the roller groove (8).

3. The connection structure between the outer shell and inner liner of a circular arc box according to claim 1, characterized in that: The outer edge of the outer box frame (3) is bent to form the outer plate (31), and the outer plate (31) is perpendicular to the front side of the outer box frame (3).

4. The connection structure between the outer shell and inner liner of an arc-shaped box according to claim 1, characterized in that: The riveting part (6) is in the shape of a "T" and the riveting part (6) and the flange (5) are an integral structure.

5. The connection structure between the outer shell and inner liner of an arc-shaped box according to claim 1 or 4, characterized in that: The riveting part (6) presses against the inner wall of the outer plate (31) and the outer shell (1).

6. The connection structure between the outer shell and inner liner of an arc-shaped box according to claim 1, characterized in that: The embedded edge (9) has a concave step (91) that abuts against the groove of the roller groove (8), and the embedded edge (9) is a multi-segment bending structure.

7. The connection structure between the outer shell and inner liner of an arc-shaped box according to claim 1, characterized in that: The outer casing (1) is composed of a left side plate (101), a top plate (102) and a right side plate (103) of an integral structure. The outer casing (1) is a stainless steel outer casing, an aluminum alloy outer casing or an iron outer casing.

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