Flange structure of box or cover, explosion-proof box and manufacturing process

Abstract

A flange structure for a box or cover, an explosion-proof box, and a manufacturing process. The flange structure includes a flange core layer, a flange body that is cast and wrapped around the flange core layer, the flange core layer being embedded in the flange body, and the flange core layer and the flange body forming a whole. The present invention provides a flange structure for a box or cover, an explosion-proof box, and a manufacturing process. According to the actual size of the flange core layer at the edge of the box and the cover, the flange body is cast into the flange core layer at the edge of the box and the cover, so that the flange core layer is embedded in the flange body. The two are combined to form a flange structure. The processing and manufacturing are quick and efficient. The secure connection between the flange core layer and the flange body is not affected by thickness. Moreover, the thicker the flange body, the tighter the fit between the flange core layer and the flange body, the stronger the rigidity, and the better the explosion-proof effect.

Description

Technical Field

[0001] The invention relates to a flange structure of a box body or a cover body, an explosion-proof box and a manufacturing process. Background Art

[0002] The explosion-proof box in the prior art includes a box body and a cover body arranged on the box body. Electronic products or electrical products that need explosion-proof treatment are arranged in the box body, and then the flange on the box body and the flange on the cover body are connected to form an explosion-proof space between the box body and the cover body.

[0003] The flanges in the prior art need to meet certain thickness requirements. The flanges on the explosion-proof box or cover are usually welded, and the flanges are welded to the box or cover along the entire edge. The production efficiency is extremely low, resulting in high production costs. Once the welding effect is poor, gaps will appear, affecting the explosion-proof effect and poor safety performance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flange structure for a box body or a cover body.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a flange structure of a box body or a cover body, the flange structure includes a flange core layer, a flange body cast and wrapped on the flange core layer, the flange core layer is embedded in the flange body, and the flange core layer and the flange body form a whole.

[0006] In certain embodiments, the flange core layer is formed by stamping the edge of the main body of the box body or the cover body through a flanging process.

[0007] In certain embodiments, the flange core layer and the flange body are made of two different materials respectively.

[0008] In certain embodiments, the flange core layer is made of an aluminum alloy material, and the flange body is made of an aluminum material or a steel material.

[0009] In certain embodiments, the mounting mating surface of the flange body is a flameproof surface.

[0010] In certain embodiments, the thickness of the flange body is 2.5 to 10 times the thickness of the flange core layer.

[0011] In certain embodiments, the flange structure is provided with a plurality of mounting holes penetrating the flange body and the flange core layer.

[0012] In certain embodiments, the flange core layer is a closed, complete circle of edges.

[0013] Another technical problem to be solved by the present invention is to provide an explosion-proof box.

[0014] In order to solve the above technical problems, the technical solution adopted by the present invention is: an explosion-proof box with a flange structure including a box body or a cover body as described in any one of the above embodiments, comprising the box body and the cover body, the box body and the cover body respectively including a main body and the flange structure arranged on the main body, the flange core layer is stamped by the edge of the main body through a flanging process, and the box body and the cover body are fixedly connected by multiple bolts passing through the two flange structures.

[0015] Another technical problem to be solved by the present invention is to provide a manufacturing process for the flange structure of the box body or the cover body.

[0016] In order to solve the above technical problems, the technical solution adopted by the present invention is: a manufacturing process of a flange structure of a box or cover, comprising the following steps:

[0017] S01. Prepare a box or cover body, wherein the edge of the body has a flange core layer formed integrally;

[0018] S02, hanging the main body, and placing the flange core layer on the main body into a flange structure manufacturing mold;

[0019] S03. Introduce the aluminum material liquid or the steel material liquid into the flange structure manufacturing mold until it covers the flange core layer;

[0020] S04. Cooling, the aluminum material liquid or the steel material liquid forms a solid outside the flange core layer, thereby forming the flange body, and the production is completed.

[0021] The scope of the present invention is not limited to technical solutions formed by a specific combination of the above-mentioned technical features, but also includes other technical solutions formed by any combination of the above-mentioned technical features or their equivalents. For example, technical solutions formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0022] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention provides a flange structure of a box or a cover, an explosion-proof box and a manufacturing process. According to the actual size of the flange core layer at the edge of the box and the cover, a flange main body is cast on the flange core layer at the edge of the box and the cover, so that the flange core layer is embedded in the flange main body. The two are combined to form a flange structure, which is quick to process and has higher production efficiency. The safe connection between the flange core layer and the flange main body is not affected by the thickness, and the thicker the flange main body, the tighter the fit between the flange core layer and the flange main body, the stronger the rigidity, and the better the explosion-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attachment Figure 1This is a schematic diagram of the three-dimensional structure of the explosion-proof box;

[0024] Attachment Figure 2 This is a schematic diagram of the cross-sectional structure of the explosion-proof box;

[0025] Attachment Figure 3 This is a schematic diagram of the cover after pouring;

[0026] Attachment Figure 4 This is a schematic diagram of the opening after the cover is cast;

[0027] Attachment Figure 5 This is a schematic diagram of the structure of the front cover;

[0028] Attachment Figure 6 It is the cross-sectional view of the flange structure;

[0029] Among them: 1. flange structure; 11. flange core layer; 12. flange body; 12a. matching end edge layer; 12b. matching tail edge layer; 2. box body; 3. cover body. DETAILED DESCRIPTION

[0030] The present invention provides an explosion-proof box, comprising a box body 2 and a cover body 3.

[0031] The housing 2 includes a housing body and a flange structure 1 disposed on the housing body. The flange structure 1 includes a flange core layer 11 and a flange body 12 that is cast and encased on the flange core layer 11. The flange core layer 11 is embedded within the flange body 12, and the flange core layer 11 and the flange body 12 form a single unit. The flange core layer 11 is stamped from the edge of the housing body using a flanging process.

[0032] With the same structure, the cover body 3 also includes a box cover main body and a flange structure 1 arranged on the box cover main body. The flange structure 1 includes a flange core layer 11 and a flange main body 12 which is cast and wrapped on the flange core layer 11. The flange core layer 11 is embedded in the flange main body 12. The flange core layer 11 and the flange main body 12 form a whole. The flange core layer 11 is stamped from the edge of the box cover main body through a flanging process.

[0033] The flange structure 1 of the box body 2 and the flange structure 1 of the cover body 3 are fixedly connected by passing a plurality of bolts.

[0034] The flange structure 1 is described in detail below: the flange structure 1 is applicable to the box body 2 and the cover body 3 as well.

[0035] The flange core layer 11 and the flange body 12 are made of two materials to meet different rigidity requirements. The flange core layer 11 and the main body are made of the same aluminum alloy material, and the flange body 12 is made of aluminum or steel. The flange core layer 11 is a closed circle. Figure 6As shown, the flange body 12 is divided into a mating end edge layer 12a and a mating tail edge layer 12b along the axial direction by the flange core layer 11. The radial inner ring edge of the mating end edge layer 12a is flush with the inner wall of the main body, and the radial inner ring edge of the mating tail edge layer 12b intersects with the outer wall of the main body.

[0036] The mounting surface of the flange body 12 is a milled explosion-proof surface to enhance the explosion-proof effect.

[0037] The thickness of the flange body 12 is 2.5 to 10 times the thickness of the flange core layer. For example, if the thickness of the flange core layer is 3 mm, the thickness of the flange body 12 may be greater than 8 mm.

[0038] A manufacturing process for a flange structure of a cover body comprises the following steps:

[0039] S01. Prepare a main body of the cover, wherein the edge of the main body has a flange core layer formed integrally;

[0040] S02, hang the main body and attach Figure 5 The flange core layer on the main body of the cover is placed into a flange structure manufacturing mold;

[0041] S03, introducing aluminum alloy liquid into the flange structure manufacturing mold until the aluminum alloy liquid covers the flange core layer;

[0042] S04. Cooling, the aluminum alloy liquid forms the flange body outside the flange core layer, and the production is completed.

[0043] Regarding the production of the mounting holes on the flange body 12, they can be directly formed by a mold, or they can be cast and then drilled, as shown in the attached Figure 3 In the process shown in FIG, the casting is completed, and then there is step S05, drilling a mounting hole on the flange body, and the production is completed.

[0044] like Figure 4 As shown, the flange structure 1 is provided with a plurality of mounting holes penetrating the flange body 12 and the flange core layer 11 to facilitate the connection of the two flange structures 1. For example, in this embodiment, the box body 2 and the cover body 3 are fixedly connected by a plurality of bolts passing through the two flange structures 1.

[0045] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. An explosion-proof box, characterized by: It comprises a box body (2) and a cover body (3), wherein the box body (2) and the cover body (3) respectively comprise a main body and a flange structure provided on the main body. The flange structure (1) comprises a flange core layer (11), a flange body (12) formed by casting and wrapped on the flange core layer (11), the flange core layer (11) is formed by stamping the edge of the body part through a flanging process, the flange core layer (11) is embedded in the flange body (12), and the flange core layer (11) and the flange body (12) form a whole. The mounting surface of the flange body (12) is a flameproof surface, and the flange core layer (11) is a closed whole circle edge. The thickness of the flange body (12) is 2.5 to 10 times the thickness of the flange core layer, the flange core layer (11) is made of an aluminum alloy material, and the flange body (12) is made of an aluminum material or a steel material. The flange body (12) is divided into a fitting end edge layer (12a) and a fitting tail edge layer (12b) along the axial direction by the flange core layer (11), wherein the radial inner edge of the fitting end edge layer (12a) is flush with the inner wall of the main body, and the radial inner edge of the fitting tail edge layer (12b) intersects with the outer wall of the main body. The flange structure is provided with a plurality of mounting holes penetrating the flange body (12) and the flange core layer (11), and the box body (2) and the cover body (3) are fixedly connected by a plurality of bolts passing through the two flange structures. The manufacturing process of the flange structure of the box body or cover body of the explosion-proof box includes the following steps: S01. Prepare a box or cover body, wherein the edge of the body has a flange core layer formed integrally; S02, hanging the main body, and placing the flange core layer on the main body into a flange structure manufacturing mold; S03, introducing aluminum alloy liquid into the flange structure manufacturing mold until the aluminum alloy liquid covers the flange core layer; S04, cooling, the aluminum alloy liquid forms a flange body outside the flange core layer, and a plurality of mounting holes penetrating the flange body (12) and the flange core layer (11) are opened on the flange structure (1), and the production is completed.

2. The explosion-proof box according to claim 1, characterized in that: The flange core layer (11) and the flange body (12) are respectively made of two materials.

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