Flared combined rivet and panel structure with same

Abstract

The utility model relates to rivet technical field especially relates to a flared combined rivet and the board layer structure with it, including rivet body, rivet body includes the rivet head and the rivet pipe of injection moulding integrated, the rivet head and the rivet pipe are all plastic parts, and the rivet pipe includes the pipe and flared pipe, the flared pipe is opened and forms flared portion after flaring, and the flared portion and the rivet head are all round cake shape, including the material board of stacking placement, and the material board is formed with the rivet hole for the rivet pipe to pass through, and the rivet hole of stacking placement material board is coaxial arrangement, and the flared portion and the rivet head are placed at the both sides of stacking placement material board respectively. Rivet is riveted in the process of heating and pressing to the flared pipe, does not produce metal powder, avoids the short circuit situation of PCB board after power on use, relative to the petal shape of existing pressure cutting, round cake shape increases the force of clamping, and the bending position of deformation does not break, improves the overall structural strength of this flared rivet and board layer structure.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, and in particular to a flared combination rivet and a plate structure with the same. Background Technology

[0002] Currently, most board-layer connections require riveting using metal rivets. Structurally, these rivets, after being pressed and cut, are petal-shaped. However, this petal-shaped metal rivet has inherent defects. When subjected to external forces, such as vibration, impact, or long-term stress on the board structure, stress concentration is significant, and the bending points are prone to breakage. In PCB board connections of electronic devices, such breakage can lead to connection failure between boards, affecting the electrical performance and mechanical stability of the equipment, and in severe cases, causing the entire device to malfunction.

[0003] Furthermore, the cutting and pressing of metal rivets during processing generates a large amount of metal dust. In applications requiring high cleanliness, such as electronic equipment, this dust can easily penetrate the tiny gaps between layers. Once the equipment is powered on, the metal dust may form a conductive path under the influence of the electric field, causing a short circuit in the layer structure. This can damage electronic components and lead to serious consequences such as equipment malfunction and data loss, posing significant safety hazards and economic losses to production and use. Therefore, a flared combination rivet and a layer structure incorporating it are provided to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a flared combination rivet and a plate structure with it to address the shortcomings of the existing technology, so as to solve the technical problems that the existing metal rivets, which are petal-shaped after pressing and cutting, are prone to breakage, and that the metal dust generated during pressing and cutting can cause short circuits to the plate structure.

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

[0006] A flared combination rivet includes a rivet body, which includes an injection-molded rivet head and a rivet tube, both of which are plastic parts. The rivet tube includes an insert and a flared tube. The flared tube is opened to form a flared portion, and both the flared portion and the rivet head are disc-shaped.

[0007] Furthermore, the wall thickness of both the insertion tube and the flared tube is 0.2mm to 0.3mm.

[0008] Furthermore, the thickness of both the nail head and the flared part is 0.2mm to 0.3mm.

[0009] Furthermore, a metal cylinder is coaxially arranged inside the cannula.

[0010] Furthermore, the metal cylinder is made of copper tubing.

[0011] Furthermore, the outer wall of the metal cylinder is interference-fitted with the inner wall of the insertion tube.

[0012] Furthermore, the metal cylinder and the insertion tube are injection molded as a single unit.

[0013] A plate structure with flared combination rivets includes stacked plates, each plate having rivet holes for rivet tubes to pass through, the rivet holes of the stacked plates being coaxially arranged; the flared portion and the rivet head are respectively placed on both sides of the stacked plates.

[0014] Furthermore, the outer wall of the insertion tube is interference-fitted with the inner wall of the nail hole.

[0015] Furthermore, the material board is a PCB board.

[0016] The beneficial effects of this utility model are as follows: Before riveting, the rivet tube on the rivet body is passed through the rivet holes of the stacked material plates at the same time. After the rivet tube passes through, the insert tube is placed in the rivet hole, and the flared tube extends to the outside of the material plate, so that the flared tube can be opened and flared to form a flared part. The size of the flared part is larger than the size of the rivet hole, thus realizing the riveting of the stacked material plates.

[0017] Secondly, by making the rivet body out of plastic, the flared tube is heated and pressurized to open it up, so that no metal powder is generated during the riveting process, thus avoiding short circuits after the PCB board is powered on.

[0018] In addition, both the flared end and the nail head are disc-shaped. Compared with the existing petal-shaped cut ends, the disc shape increases the clamping force and prevents breakage at the bending point where deformation occurs, thereby improving the overall structural strength of this flared rivet and the plate structure. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0021] Figure 3 This is a schematic diagram of the plate structure with the rivet of this utility model.

[0022] The reference numerals in the figures include:

[0023] 1. Nail head; 2. Nail tube; 21. Insert tube; 22. Flared tube; 23. Flared end; 3. Metal cylinder; 4. Material plate; 5. Nail hole. Detailed Implementation

[0024] The following is a detailed description of a flared combination rivet and a plate structure incorporating it, with reference to the accompanying drawings.

[0025] like Figure 1-3 As shown, an embodiment of the flared combination rivet and its plate structure includes stacked material plates 4 and a rivet body for riveting the stacked material plates 4. After stacking multiple material plates 4 together, the rivet body passes through the multiple material plates 4. Then, a riveting press is used to apply pressure to the rivet body to deform it, thereby riveting the stacked material plates 4.

[0026] The rivet body includes a rivet head 1 and a rivet tube 2, both of which are injection molded in one piece. The rivet head 1 and the rivet tube 2 are both plastic parts, while the material plate 4 is a PCB board or other plate-shaped electronic component. After the rivet body is made of plastic, the riveting machine heats and presses the rivet body to rivet the material plate 4. During the riveting process, no metal powder will be generated, thus avoiding short circuits after the PCB board is powered on. The material plate 4 is formed with nail holes 5 for the nail tube 2 to pass through. The nail holes 5 of the stacked material plates 4 are coaxially arranged. The nail tube 2 includes an insertion tube 21 and a flared tube 22. Before riveting, the nail tube 2 on the rivet body is passed through the nail holes 5 of the stacked material plates 4 at the same time. After the nail tube 2 passes through, the insertion tube 21 is placed in the nail hole 5, and the flared tube 22 extends to the outside of the material plate 4, so that the flared tube 22 can be opened and flared by the riveting press. The size of the flared tube 22 after being opened and flared is larger than the size of the nail hole 5, thus realizing the riveting of the stacked material plates 4.

[0027] Furthermore, the wall thickness of both the insertion tube 21 and the flared tube 22 is 0.2mm to 0.3mm. Setting their wall thickness to be approximately the same ensures that the deformation of the flared tube 22 is more stable during the flaring process, and that the deformation is more uniform and aesthetically pleasing. Additionally, after the nail tube 2 passes through the nail hole 5, the outer wall of the insertion tube 21 and the inner wall of the nail hole 5 are press-fitted together to prevent the rivet body from loosening after riveting the stacked material plates 4, which would affect the riveting effect.

[0028] Furthermore, after the flared tube 22 is expanded, a flared section 23 is formed (e.g., Figure 3 As shown, both the flared portion 23 and the rivet head 1 are disc-shaped and are placed on both sides of the stacked material plates 4 to rivet the stacked material plates 4. Compared with the existing petal-shaped shape after pressing and cutting, the disc shape increases the clamping force and will not break at the bending position where deformation occurs, thus improving the overall structural strength of this flared rivet. The thickness of the rivet head 1 and the flared portion 23 is 0.2mm to 0.3mm. After riveting the stacked material plates 4, the thickness of the rivet head 1 and the flared portion 23 is relatively thin and does not protrude, which not only saves space but also makes the overall appearance more aesthetically pleasing.

[0029] A metal cylinder 3 is coaxially disposed inside the insertion tube 21. The outer wall of the metal cylinder 3 can be installed with the inner wall of the insertion tube 21 via an interference fit, or the metal cylinder 3 can be injection molded integrally with the insertion tube 21. Alternatively, the metal cylinder 3 can be directly injection molded integrally inside the tube body of the insertion tube 21, meaning the insertion tube 21 encloses both the inner and outer walls of the metal cylinder 3. Regardless of the method used, by placing the metal cylinder 3 inside the insertion tube 21, the structural strength of the insertion tube 21 can be improved, preventing the insertion tube 21 from easily deforming and maintaining an upright state after riveting. This ensures that the multiple riveted material plates 4 do not shift relative to each other, further improving the quality of riveting.

[0030] The metal cylinder 3 can be a copper tube or other metal tube, as long as it can improve the structural strength of the insertion tube 21.

[0031] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0032] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flared-end type combination rivet, characterized in that: The rivet body includes an injection-molded rivet head (1) and a rivet tube (2). Both the rivet head (1) and the rivet tube (2) are plastic parts. The rivet tube (2) includes an insert (21) and a flared tube (22). The flared tube (22) is opened to form a flared part (23). Both the flared part (23) and the rivet head (1) are disc-shaped.

2. The flared combination rivet according to claim 1, characterized in that: The wall thickness of both the insertion tube (21) and the flared tube (22) is 0.2 mm to 0.3 mm.

3. The flared combination rivet according to claim 1, characterized in that: The thickness of both the nail head (1) and the flared part (23) is 0.2 mm to 0.3 mm.

4. The flared combination rivet according to claim 1, characterized in that: The cannula (21) has a metal cylinder (3) coaxially arranged inside.

5. A flared combination rivet according to claim 4, characterized in that: The metal cylinder (3) is a copper tube.

6. A flared combination rivet according to claim 4, characterized in that: The outer wall of the metal cylinder (3) is press-fitted with the inner wall of the insertion tube (21).

7. A flared combination rivet according to claim 4, characterized in that: The metal cylinder (3) and the insertion tube (21) are injection molded as a single unit.

8. A plate structure with rivets according to any one of claims 1-7, characterized in that: It includes stacked material plates (4), the material plates (4) are formed with nail holes (5) for nail tubes (2) to pass through, and the nail holes (5) of the stacked material plates (4) are coaxially arranged; the flared part (23) and the nail head (1) are respectively placed on both sides of the stacked material plates (4).

9. The plate structure with said rivets according to claim 8, characterized in that: The outer wall of the insertion tube (21) is interference-fitted with the inner wall of the nail hole (5).

10. The plate structure with said rivets according to claim 8, characterized in that: The material board (4) is a PCB board.

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