Novel assembly fastening structure

Abstract

The utility model discloses a novel assembling and fastening structure which comprises an unthreaded bolt with a pin, a reed nut and a gasket, and a pin hole is formed in the end portion of the unthreaded bolt with the pin. The reed nut is provided with an upper reed and a lower reed, the upper reed and the lower reed are provided with concentric bolt holes, and the upper reed is provided with a pin positioning support; the opponent piece is arranged between the upper reed and the lower reed, the unthreaded bolt with the pin penetrates through the assembly piece, the lower reed, the opponent piece and the upper reed, and the end of the unthreaded bolt with the pin is fixed through the pin. According to the utility model, the assembly efficiency is improved, repeated disassembly and use can be realized, the maintenance cost is reduced, and the repeated utilization rate is improved; the problem of thread slipping cannot occur in the assembling process, and the reliability is high; and personal errors are avoided, the connection precision and stability are ensured, and the anti-loosening and self-positioning functions are achieved.

Description

Technical Field

[0001] The utility model relates to a novel assembly fastening structure, belonging to the technical field of fasteners. Background Art

[0002] Automotive fasteners are various mechanical elements used to connect and secure automotive components. They are common and important components in automotive engineering and manufacturing, and are widely used in various parts of the car. The main function of fasteners is to maintain the position and integrity of parts by creating a mechanical connection. Fasteners can be used to connect two or more parts or to secure parts to a structure or surface. Currently, assembly and fastening mostly use a combination of bolts and nuts or self-tapping screws and screw studs, resulting in low production and assembly fastening efficiency. Ordinary threaded fasteners are easily damaged during assembly, have poor anti-loosening effects, and are prone to loosening after assembly. In particular, they are prone to thread slippage and damage to the product during repeated disassembly. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a new assembly fastening structure for the defects of the prior art, thereby improving assembly efficiency and ensuring assembly reliability.

[0004] To solve this technical problem, the utility model provides a novel assembly and fastening structure, comprising a threadless pin bolt, a spring nut and a washer, wherein the end of the threadless pin bolt is provided with a pin hole; the spring nut is provided with an upper spring leaf and a lower spring leaf, the upper spring leaf and the lower spring leaf are provided with concentric bolt holes, and the upper spring leaf is provided with a pin positioning support; the pair of pieces are arranged between the upper spring leaf and the lower spring leaf, the threadless pin bolt passes through the assembly part, the lower spring leaf, the pair of pieces and the upper spring leaf, and the end of the threadless pin bolt is fixed by a pin.

[0005] A washer is provided between the threadless pin bolt and the assembly part.

[0006] The threadless pin bolt comprises a threadless bolt shank, a threadless bolt head and a step, wherein a step is provided between the threadless bolt shank and the threadless bolt head for positioning.

[0007] The pin hole is arranged at one end of the non-threaded bolt rod away from the non-threaded bolt head.

[0008] The pin positioning supports are arranged on both sides of the bolt hole of the upper spring.

[0009] The upper end of the pin positioning support is provided with a groove, and the column pin is clamped in the groove.

[0010] The threadless pin bolt is made from section steel.

[0011] The upper spring leaf and the lower spring leaf are an integrated structure formed by bending spring steel plates.

[0012] Beneficial effects: The utility model only needs to rotate the threadless pin bolt half a turn to complete the assembly, which significantly improves the assembly efficiency; no large torque is required during the assembly process, which can protect itself and the opponent parts from damage, and can be disassembled and used repeatedly, reducing maintenance costs and improving reuse rate; there will be no problem of thread stripping during the assembly process, and the reliability is high; the reed nut and the washer have a certain elasticity and can adapt to products with a certain thickness range; when the threadless pin bolt is screwed into the concentric bolt hole, it will automatically find the position in the hole and form a pre-tightening force between the hole wall of the connecting component, which can improve assembly efficiency, avoid human errors, and at the same time ensure the accuracy and stability of the connection, and has the functions of anti-loosening and self-positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 3 This is a schematic structural diagram of a threadless pin bolt according to the present invention;

[0016] Figure 4 It is a structural diagram of the gasket of the utility model.

[0017] In the figure: 1. Unthreaded pin bolt; 2. Spring nut; 3. Assembly part; 4. Counterpart; 5. Washer; 11. Unthreaded bolt shank; 12. Unthreaded bolt head; 13. Step; 14. Pin hole; 15. Pin; 21. Upper spring; 22. Lower spring; 23. Bolt hole; 24. Pin positioning support. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-4As shown, the utility model provides a new assembly and fastening structure, including a threadless pin bolt 1, a spring nut 2 and a washer 5, the end of the threadless pin bolt 1 is provided with a pin hole 14; the spring nut 2 is provided with an upper spring leaf 21 and a lower spring leaf 22, the upper spring leaf 21 and the lower spring leaf 22 are provided with concentric bolt holes 23, and the upper spring leaf 21 is provided with a pin positioning support 24. When the threadless pin bolt 1 is screwed into the concentric bolt hole 23, it will automatically find its position in the hole and form a pre-tightening force between the hole wall of the connecting component, which can improve assembly efficiency, avoid human errors, and ensure the accuracy and stability of the connection; the pair piece 4 is arranged between the upper spring leaf 21 and the lower spring leaf 22, the threadless pin bolt 1 passes through the assembly part 3, the lower spring leaf 22, the pair piece 4 and the upper spring leaf 21, and the end of the threadless pin bolt 1 is fixed by a pin 15. When in use, the threadless pin bolt 1 can be assembled by rotating half a turn, which significantly improves the assembly efficiency; no large torque is required during the assembly process, which can protect itself and the opponent parts from damage, and can be disassembled and used repeatedly, reducing maintenance costs and improving reuse rate; the threadless pin bolt 1 has no threads, and there will be no problem of thread stripping during the assembly process, and the reliability is high; the reed nut 2 and the washer 5 have a certain elasticity and can adapt to product parts within a certain thickness range.

[0020] A washer 5 is provided between the threadless pin bolt 1 and the assembly part 3, and the washer 5 is stuck in the limit position to prevent loosening.

[0021] The threadless pin bolt 1 comprises a threadless bolt shank 11, a threadless bolt head 12, and a step 13. Step 13 is provided between the threadless bolt shank 11 and the threadless bolt head 12 for positioning. After assembly, the threadless pin bolt 1 is secured by a washer 5 positioned between the step 13 and the assembly member 3, significantly preventing it from loosening.

[0022] The pin hole 14 is provided at one end of the non-threaded bolt shank 11 away from the non-threaded bolt head 12 .

[0023] The pin positioning supports 24 are provided on both sides of the bolt hole 23 of the upper spring leaf 21 .

[0024] The upper end of the pin positioning support 24 is provided with a groove, and the column pin 15 is stuck in the groove to play a limiting role.

[0025] The threadless pin bolt 1 is made of section steel and has a simple structure and is easy to manufacture.

[0026] The upper spring leaf 21 and the lower spring leaf 22 are an integrated structure made by bending spring steel plates, and have good limiting and anti-loosening effects.

[0027] The utility model can be used for assembling bumpers and decorative panels of commercial vehicles, avoiding the problem of easy damage to product parts after assembly using self-tapping screws, and is convenient for disassembly and assembly.

[0028] The method of using the utility model is as follows:

[0029] The required assembly part 3 and the unthreaded pin bolt 1 are assembled in advance, and the reed nut 2 and the opponent part 4 are assembled in advance so that the hole positions of the two correspond. Finally, the required assembly part 3 is aligned with the hole positions of the opponent part 4 for assembly. During the assembly process, the reed is compressed, and then the unthreaded pin bolt 1 is rotated to make the pin rotate upward along the inclined surface of the reed nut installation surface until the pin enters the limit area, that is, the assembly is in place, and the reed is restored at the same time, which has an anti-loosening effect.

[0030] The utility model aims to solve the problems of low production and assembly fastening efficiency, easy damage during assembly of ordinary threaded fasteners, and easy loosening after assembly. Through a newly designed fastening form, the utility model adopts a matching structure of a threadless pin bolt and a washer assembly and a special spring nut, which can complete the assembly by turning half a turn and effectively prevent loosening after assembly. On the basis of ensuring structural reliability, the problems of easy damage during assembly, easy loosening of the fastening structure after assembly, and low assembly efficiency are solved.

[0031] The above embodiments of the present invention are merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A new type of assembly fastening structure, characterized by: The invention comprises a threadless pin bolt (1), a spring nut (2) and a washer (5), wherein the end of the threadless pin bolt (1) is provided with a pin hole (14); the spring nut (2) is provided with an upper spring leaf (21) and a lower spring leaf (22), the upper spring leaf (21) and the lower spring leaf (22) are provided with concentric bolt holes (23), and the upper spring leaf (21) is provided with a pin positioning support (24); the opponent piece (4) is arranged between the upper spring leaf (21) and the lower spring leaf (22), the threadless pin bolt (1) passes through the assembly part (3), the lower spring leaf (22), the opponent piece (4) and the upper spring leaf (21), and the end of the threadless pin bolt (1) is fixed by a column pin (15).

2. The novel assembly and fastening structure according to claim 1 is characterized in that: A washer (5) is provided between the threadless pin bolt (1) and the assembly part (3).

3. The novel assembly and fastening structure according to claim 1 is characterized in that: The threadless pin bolt (1) comprises a threadless bolt rod (11), a threadless bolt head (12) and a step (13). A step (13) is provided between the threadless bolt rod (11) and the threadless bolt head (12) for positioning.

4. The novel assembly and fastening structure according to claim 1 is characterized in that: The pin hole (14) is arranged at one end of the non-threaded bolt rod (11) away from the non-threaded bolt head (12).

5. The novel assembly and fastening structure according to claim 1 is characterized in that: The pin positioning supports (24) are arranged on both sides of the bolt hole (23) of the upper spring leaf (21).

6. The novel assembly and fastening structure according to claim 1 is characterized in that: The upper end of the pin positioning support (24) is provided with a groove, and the column pin (15) is stuck in the groove.

7. The novel assembly and fastening structure according to claim 2 is characterized in that: The threadless pin bolt (1) comprises a threadless bolt rod (11), a threadless bolt head (12) and a step (13); a step (13) is provided between the threadless bolt rod (11) and the threadless bolt head (12) for positioning; and a pin hole (14) is provided at one end of the threadless bolt rod (11) away from the threadless bolt head (12).

8. The novel assembly and fastening structure according to claim 2 is characterized in that: The pin positioning support (24) is arranged on both sides of the bolt hole (23) of the upper spring leaf (21); the upper end of the pin positioning support (24) is provided with a groove, and the column pin (15) is stuck in the groove.

9. The novel assembly and fastening structure according to claim 1 is characterized in that: The threadless pin bolt (1) is made from section steel.

10. The novel assembly and fastening structure according to any one of claims 1 to 9, characterized in that: The upper spring leaf (21) and the lower spring leaf (22) are an integrated structure formed by bending spring steel plates.

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