Sheet metal part connecting structure

Abstract

The utility model relates to the technical field of sheet metal parts, and discloses a sheet metal part connecting structure which comprises a base plate, the front side and the rear side of the base plate are fixedly connected with first bending parts, the ends, away from the base plate, of the first bending parts are fixedly connected with second bending parts, and the two sides of each first bending part are fixedly connected with third bending parts. Fourth bending parts are fixedly connected to the two sides of the base plate, side plates are arranged on one sides of the fourth bending parts and the two third bending parts, and one sides of the side plates are fixedly installed on one sides of the fourth bending parts and the third bending parts through a plurality of clamping elbows. A penetrating through groove is formed in the third bending part, and second clamping grooves are also formed in the first clamping groove, the third bending part and the fourth bending part, so that a plurality of clamping elbows which are formed by cutting and bending are arranged in the side plate and can be quickly connected to one side of the third bending part and one side of the fourth bending part; therefore, the box-shaped sheet metal parts can be quickly connected and fixed without an external connecting piece, and the assembly cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal parts technology, and in particular to a sheet metal parts connection structure. Background Technology

[0002] Sheet metal parts are parts made from thin metal sheets through cold working processes such as stamping, bending, and stretching. Due to their good plasticity, high strength, and cost-effectiveness, they are widely used in many fields such as electronic equipment, machinery manufacturing, and the automotive industry.

[0003] Box-shaped sheet metal parts, a common structural form, are assembled by cutting and bending metal sheets and connecting multiple sheet metal parts. Traditional assembly of box-shaped sheet metal parts relies primarily on external connectors such as screws, rivets, and welding to secure the components. During assembly, holes must be pre-drilled in the sheet metal parts, and screws must be tightened one by one. Precise positioning is required to ensure the screws pass through the corresponding holes, and tools such as screwdrivers and wrenches are needed for tightening. This process demands a high level of worker skill, and the installation of each screw is time-consuming and labor-intensive, significantly reducing assembly efficiency. Furthermore, the large-scale purchase of screws, rivets, and other external connectors increases direct material costs. In addition, in applications requiring compactness and lightweight design, excessive external connectors occupy space and add weight. Utility Model Content

[0004] The purpose of this utility model is to provide a sheet metal connection structure that can effectively solve the problems of existing sheet metal assembly methods in the background art in terms of connection convenience, cost control, assembly efficiency and structural stability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sheet metal connection structure includes a base plate. A first bending portion is fixedly connected to both the front and rear sides of the base plate. A second bending portion is fixedly connected to the end of the first bending portion away from the base plate. A third bending portion is fixedly connected to both sides of the first bending portion. A fourth bending portion is fixedly connected to both sides of the base plate. A side plate is provided on one side of the fourth bending portion and the two third bending portions. One side of the side plate is fixedly installed on one side of the fourth bending portion and the third bending portion by a plurality of snap-fit ​​elbows.

[0007] As a further preferred embodiment of this utility model, an insertion slot is provided at the upper part of the third bend, and a first slot is also provided at the lower part of the third bend. The insertion slot and the first slot provided at the upper part of the third bend allow the upper part of one side plate to be quickly connected to the third bend by means of a snap-fit ​​elbow.

[0008] As a further preferred embodiment of this utility model, a joint is provided between the fourth bend and the two third bends on the same side.

[0009] As a further preferred embodiment of this utility model, the fourth bend and the third bend are respectively provided with second slots near the joint. The joint between the third bend and the fourth bend, together with the second slot inside and the snap-fit ​​elbow on one side of the side plate, facilitates the quick connection between the lower end of the side plate and the third bend and the fourth bend.

[0010] As a further preferred embodiment of this utility model, the snap-fit ​​elbow has an L-shaped structure and a positioning groove. A positioning block is fixedly connected to the other side of the snap-fit ​​elbow, and the positioning block is integrally cut and bent from the inside of the snap-fit ​​elbow. A clamping plate is also fixedly connected to the snap-fit ​​elbow located between the positioning groove and the positioning block. The clamping plate is also integrally cut and bent from the snap-fit ​​elbow. Two snap-fit ​​elbows are inserted between two seams, and one end of the clamping plate is clamped in the corresponding second clamping groove. The positioning grooves and positioning blocks on the adjacent sides of the two snap-fit ​​elbows are interlocked and connected to each other. Another snap-fit ​​elbow is inserted into the corresponding through groove, and the clamping plate on one side of the snap-fit ​​elbow is clamped in the corresponding first clamping groove. By setting multiple snap-fit ​​elbows in the side plate by cutting and bending, the substrate, the first bending part, and the side plate can be quickly connected without the need for external connecting accessories.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this utility model, an interpenetrating groove, a first slot, and a third bend are provided in the third bend, and a second slot is also provided in the fourth bend. Thus, multiple self-cut and bent snap-fit ​​elbows are provided in the side plate, which can be quickly connected to one side of the third bend and the fourth bend. Therefore, the box-shaped sheet metal parts can be quickly connected and fixed without the need for external connectors, thus reducing assembly costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the disassembled main structure of this utility model;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0017] Figure 5This is a schematic diagram of the third and fourth bends and a partially disassembled side plate of this utility model.

[0018] Figure 6 This is a schematic diagram of the snap-fit ​​elbow structure of this utility model.

[0019] In the figure: 1. Substrate; 2. First bend; 3. Second bend; 4. Third bend; 5. Side plate; 6. Snap-fit ​​elbow; 7. Through slot; 8. First slot; 9. Seam; 10. Second slot; 11. Positioning slot; 12. Positioning block; 13. Snap plate; 14. Fourth bend. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-6 As shown, the present invention provides a sheet metal connection structure, including a base plate 1. A first bending portion 2 is fixedly connected to both the front and rear sides of the base plate 1. A second bending portion 3 is fixedly connected to the end of the first bending portion 2 away from the base plate 1. A third bending portion 4 is fixedly connected to both sides of the first bending portion 2. A fourth bending portion 14 is fixedly connected to both sides of the base plate 1. A side plate 5 is provided on one side of the fourth bending portion 14 and the two third bending portions 4. The side plate 5 is fixedly installed on one side of the fourth bending portion 14 and the third bending portion 4 by a plurality of snap-fit ​​elbows 6.

[0022] like Figures 3-6A through groove 7 is provided at the upper part of the third bend 4 shown. A first slot 8 is also provided below the through groove 7. The through groove 7 and the first slot 8 above the third bend 4 allow for quick connection between the upper part of the side plate 5 and the third bend 4 via a snap-fit ​​elbow 6. A seam 9 is provided between the fourth bend 14 and the two third bends 4 on the same side. A second slot 10 is provided near the seam 9 on both the fourth bend 14 and the third bend 4. The seam 9 between the third bend 4 and the fourth bend 14, along with the second slot 10 inside and the snap-fit ​​elbow 6 on one side of the side plate 5, facilitates quick connection between the lower end of the side plate 5 and the third bend 4 and the fourth bend 14. The snap-fit ​​elbow 6 has an L-shaped structure and a positioning groove 11. A positioning device is fixedly connected to the other side of the snap-fit ​​elbow 6. Block 12, and positioning block 12 is integrally cut and bent from the inside of snap-fit ​​elbow 6. The snap-fit ​​elbow 6 located between positioning groove 11 and positioning block 12 is also fixedly connected to a snap-fit ​​plate 13, which is also integrally cut and bent from snap-fit ​​elbow 6. Two snap-fit ​​elbows 6 are inserted between two seams 9, and one end of the snap-fit ​​plate 13 is snapped into the corresponding second snap-fit ​​groove 10. The positioning groove 11 and positioning block 12 on the adjacent side of the two snap-fit ​​elbows 6 are interlocked and connected to each other. Another snap-fit ​​elbow 6 is inserted into the corresponding through groove 7, and the snap-fit ​​plate 13 on one side of the snap-fit ​​elbow 6 is snapped into the corresponding first snap-fit ​​groove 8. By setting multiple snap-fit ​​elbows 6 in the side plate 5 by cutting and bending, the base plate 1, the first bent part 2 and the side plate 5 can be quickly connected without the need for external connecting accessories.

[0023] It should be noted that this utility model is a sheet metal connection structure. After the first bending part 2, the second bending part 3, the third bending part 4, and the fourth bending part 14 are bent by bending equipment, the side plate 5 is cut into multiple snap-fit ​​elbows 6 by cutting equipment. Similarly, the positioning block 12 and the snap-fit ​​plate 13 inside the snap-fit ​​elbow 6 are also pre-cut by cutting equipment. The positioning groove 11 on one side of the snap-fit ​​elbow 6 is cut out by cutting equipment. When assembling the pre-made side plate 5 onto the base plate 1 and one side of the two first bending parts 2, the snap-fit ​​elbows 6 that are not yet bent into an L shape can be inserted. Within the corresponding through slot 7 or joint 9, the snap-fit ​​elbow 6 can be bent to one side by applying pressure from the side opposite to the side plate 5 of the third bend 4 and the fourth bend 14 using a pressure device. This causes the snap-fit ​​elbow 6 to bend into an L-shaped structure, and the snap-fit ​​plate 13 to snap into the corresponding first snap-fit ​​groove 8 or second snap-fit ​​groove 10. Then, the positioning block 12 can be pushed out from the groove inside the snap-fit ​​elbow 6 and bent, so that one side of the positioning block 12 snaps into the positioning groove 11 on the side of the adjacent snap-fit ​​elbow 6, thus completing the connection between the side plate 5 and the third bend 4 and the fourth bend 14.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure for connecting sheet metal parts, characterized by: The utility model provides a kind of folding type display stand, including substrate (1), the substrate (1) front side and rear side are fixedly connected with first bending part (2), the first bending part (2) is fixedly connected with second bending part (3) away from the one end of substrate (1), the both sides of the first bending part (2) are fixedly connected with third bending part (4), the both sides of the substrate (1) are fixedly connected with fourth bending part (14), the fourth bending part (14) is provided with side plate (5) in one side of two third bending parts (4), and the side plate (5) one side is fixedly installed in fourth bending part (14) and third bending part (4) one side by multiple clamping elbows (6).

2. The sheet metal part connecting structure according to claim 1, characterized by: The third bending part (4) is provided with a through slot (7) at the upper part, and the third bending part (4) below the through slot (7) is also provided with a first clamping groove (8).

3. The sheet metal part connecting structure according to claim 2, characterized by: The fourth bending part (14) and the same side of the two third bending parts (4) are provided with a joint (9).

4. The sheet metal part connecting structure according to claim 3, characterized by: The fourth bending part (14) and the third bending part (4) are provided with a second clamping groove (10) near the joint (9).

5. The sheet metal part connecting structure according to claim 4, characterized by: The clamping elbow (6) is L-shaped structure, the clamping elbow (6) is provided with a positioning groove (11), the clamping elbow (6) is fixedly connected with a positioning block (12) on the other side, and the positioning block (12) is integrally cut and bent in the clamping elbow (6), the clamping elbow (6) between the positioning groove (11) and the positioning block (12) is also fixedly connected with a clamping plate (13), the clamping plate (13) is also integrally cut and bent in the clamping elbow (6), two clamping elbows (6) are inserted between two joints (9), one end of the clamping plate (13) is clamped in the corresponding second clamping groove (10), the positioning groove (11) and the positioning block (12) on the adjacent side of the two clamping elbows (6) are inserted and connected with each other, and the other clamping elbow (6) is inserted and installed in the corresponding through slot (7), and the clamping plate (13) on one side of the clamping elbow (6) is clamped in the corresponding first clamping groove (8).

Images