Shockproof fixing pin
By designing shock-proof components and self-closing components in the fixed pin, the problem that the fixed pin is easily shocked when vibrating is solved, and higher connection reliability and stability are achieved.
Patent Information
- Application Number
- CN202420825384.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-04-20
AI Technical Summary
The existing fixed pins are easily shaken out of the pin hole when the parts vibrate, resulting in the inability to effectively connect the two parts.
A shock-proof fixed pin is designed, using a combination of shock-proof components and self-screw components. The shockproof assembly includes a press rod that slides within the pin and threads in the shock absorbing cavity, and the self-buckle assembly includes a sliding limiting block, a hinged card block and a limiting ball. These components are matched by springs and snaps to ensure that the pins are not shaken out when they are vibrating.
Effectively prevent the fixed pin from falling or being shaken out of the pin hole when vibrating, ensuring that the parts can be connected stably, and improving the reliability of the fixed pin.
Smart Images
Figure CN222991882U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of fixing pins, and particularly relates to an anti-vibration fixing pin. Background Art
[0002] The main function of the die positioning pin is between the fastening screws of two parts to ensure position accuracy. It is mainly used for assembly positioning, and can also be used as an overload shear connection in connection and relaxation safety devices. The basic forms are cylindrical pins and conical pins. The fixing pin is also called a positioning pin.
[0003] The fixing pin is generally integrally formed. When in use, it is directly placed in the fixing pin hole. When the parts vibrate greatly, the fixing pin will be shaken out of the pin hole, so that the fixing pin cannot connect the two parts. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides an anti-vibration fixing pin.
[0005] In order to achieve the above object, the utility model provides the following technical solution: an anti-vibration fixing pin, including a pin body, characterized in that: an anti-vibration component and a self-locking component are arranged in the pin body;
[0006] Wherein the anti-vibration component includes a pressure rod sliding in the pin body, a shock-absorbing cavity is opened in the pin body, and threads are opened in the shock-absorbing cavity;
[0007] The self-locking component includes a limiting block sliding in the pin body, and at least two clamping blocks hinged to the inner wall of the pin body. At least two limiting grooves are opened on the outer peripheral side of the pin body, and limiting balls are movably connected in the limiting grooves. The limiting balls correspond to the clamping blocks one by one.
[0008] Optionally, a limiting cavity is opened in the pin body, the limiting block is located in the limiting cavity, a trigger block is slidably arranged in the limiting block, a support rod is installed on the inner wall of the trigger block through a spring, the support rod penetrates through the pin body to the outside, and a chassis is fixed to the outside part of the support rod.
[0009] Optionally, a buckle is also hinged to the inner wall of the limiting block, the buckle abuts against the support rod, the trigger block is provided with an opening, and the opening direction faces the support rod, wherein the spring is installed in the opening of the trigger block.
[0010] Optionally, torsion springs are arranged at the hinge joints of the clamping blocks and the hinge joints of the buckles.
[0011] Optionally, an abutting pin slides in the pin body, one end of the abutting pin abuts against the trigger block, and the threads in the shock-absorbing cavity are located between the pressure rod and the abutting pin, and the side of the pressure rod close to the abutting pin is matched with the threads.
[0012] In summary, the utility model has the following beneficial effects compared with the prior art:
[0013] 1. Due to the setting of the self-locking component and the shock-proof component, the pin body will not fall off whether it is placed upside down or right side up. Moreover, since the pressure rod is above the thread, when the components vibrate, the pressure rod is prevented from contacting the abutting pin, so that the self-locking component is triggered and separated from the limiting block. Since the limiting ball is prevented from entering the limiting groove deeper by the block, the pin body is prevented from being slowly shaken out, so an effective shock-proof effect can be produced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a perspective view of the utility model.
[0015] Figure 2 is a half-sectional view of the utility model.
[0016] Figure 3 is the utility model Figure 2 an enlarged view of part A in.
[0017] 10. Pin body; 11. Pressure rod; 12. Limiting groove; 13. Limiting ball; 14. Chassis; 15. Support rod; 16. Limiting block; 17. Limiting cavity; 18. Trigger block; 19. Block; 20. Abutting pin; 21. Shock-absorbing cavity; 22. Buckle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0019] As shown in FIGS. 1-3, a shock-proof fixing pin includes a pin body 10, characterized in that: a shock-proof component and a self-locking component are arranged in the pin body 10, wherein the shock-proof component includes a pressure rod 11 sliding in the pin body 10, a shock-absorbing cavity 21 is opened in the pin body 10, a thread is opened in the shock-absorbing cavity 21, the self-locking component includes a limiting block 16 sliding in the pin body 10, and at least two blocks 19 hinged to the inner wall of the pin body 10, at least two limiting grooves 12 are opened on the outer peripheral side of the pin body 10, a limiting ball 13 is movably connected in the limiting groove 12, and the limiting ball 13 corresponds to the block 19 one by one.
[0020] A limiting cavity 17 is formed in the pin body 10. The limiting block 16 is located in the limiting cavity 17. A trigger block 18 is slidably arranged in the limiting block 16. A support rod 15 is installed on the inner wall of the trigger block 18 through a spring. The support rod 15 penetrates through the pin body 10 to the outside. A contact pin 20 slides in the pin body 10. One end of the contact pin 20 abuts against the trigger block 18. And the thread in the shock-absorbing cavity 21 is located between the pressure rod 11 and the contact pin 20. The side of the pressure rod 11 close to the contact pin 20 is matched with the thread. A chassis 14 is fixed to the external part of the support rod 15. A buckle 22 is also hinged on the inner wall of the limiting block 16. The buckle 22 abuts against the support rod 15. The trigger block 18 is provided with an opening, and the opening direction faces the support rod 15. Wherein the spring is installed in the opening of the trigger block 18. Torsion springs are provided at the hinge joints of the clamping block 19 and the buckle 22.
[0021] During use, when two components need to be connected, the fixing pin is inserted into the pin hole. At this time, the limiting block 16 and the support rod 15 on the fixing pin do not abut against the contact pin 20, the clamping block 19 is not in the limiting groove 12, and the buckle 22 abuts against the support rod 15. After the pin body 10 enters the pin hole, since the limiting ball 13 is at the deepest part of the limiting groove 12, the limiting ball 13 cannot limit the pin body 10, and the pin body 10 can easily enter the pin hole. When the pin body 10 reaches the bottom of the pin hole and continues to push the pin body 10, the support rod 15 will drive the limiting block 16 to move towards the direction close to the pressure rod 11 through the abutment of the chassis 14. At this time, the limiting block 16 will push the clamping block 19 into the limiting groove 12, so as to squeeze the limiting ball 13 to move to a shallower position, that is, the limiting ball 13 can be stuck on the inner wall of the pin hole. When the pin body 10 is pulled outwards, the limiting ball 13 will be clamped tighter and tighter. At the same time as the limiting block 16 moves, the contact pin 20 will also be pushed out towards the direction close to the pressure rod 11. At this time, the installation is completed, so that the pin body 10 will not fall off whether it is placed upside down or upright. And because the pressure rod 11 is above the thread, when the components vibrate, it is avoided that the pressure rod 11 contacts the contact pin 20, so that the self-locking component is triggered and separated from the limiting clamping block 19. Since the limiting ball 13 can be prevented from entering the deeper part of the limiting groove 12 through the blockage of the clamping block 19, the pin body 10 can be prevented from being slowly shaken out, so an effective anti-vibration effect can be produced.
[0022] When disassembly is required, the pressing rod 11 can be pressed and then rotated, so that the pressing rod 11 can be abutted against the abutting pin 20. Then, by pressing the pressing rod 11, the abutting pin 20 is used to squeeze the trigger block 18, so that the trigger block 18 moves away from the pressing rod 11 until the trigger block 18 contacts the buckle 22, causing the buckle 22 to disengage from the abutting support rod 15. Then, the limiting block 16 is driven to compress the spring and move towards the support rod 15. At this time, the limiting block 16 no longer limits the clamping block 19, and the clamping block 19 leaves the limiting groove 12 under the action of the torsion spring and enters the limiting cavity 17. Then, by inverting the pin body 10, the pin body 10 can fall out. Then, under the elastic force of the spring, the support rod 15 pops out and is abutted by the buckle 22 again. Then, the pressing rod 11 is rotated in the reverse direction so that the pressing rod 11 is above the thread.
[0023] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
Claims
1. A shockproof fixing pin, comprising a pin body (10), characterized in that: The pin body (10) is provided with a shockproof component and a self-locking component; The anti-vibration assembly comprises a pressure rod (11) sliding in the pin body (10), a shock absorbing cavity (21) is provided in the pin body (10), and a thread is provided in the shock absorbing cavity (21); The self-locking assembly comprises a limiting block (16) sliding in the pin body (10), and at least two clamping blocks (19) hinged to the inner wall of the pin body (10); at least two limiting grooves (12) are provided on the outer peripheral side of the pin body (10); limiting balls (13) are movably connected in the limiting grooves (12); and the limiting balls (13) correspond one to one with the clamping blocks (19).
2. The anti-vibration fixing pin according to claim 1, characterized in that: A limiting cavity (17) is provided in the pin body (10), the limiting block (16) is located in the limiting cavity (17), a trigger block (18) is slidably provided in the limiting block (16), a support rod (15) is installed on the inner wall of the trigger block (18) via a spring, the support rod (15) passes through the pin body (10) to the outside, and a chassis (14) is fixed to the outer part of the support rod (15).
3. The anti-vibration fixing pin according to claim 2, characterized in that: A buckle (22) is also hinged on the inner wall of the limiting block (16), and the buckle (22) abuts against the support rod (15). The trigger block (18) is provided with an opening, the opening direction of which is toward the support rod (15), wherein a spring is installed in the opening of the trigger block (18).
4. The anti-vibration fixing pin according to claim 3, characterized in that: Torsion springs are provided at the hinged joint of the clamping block (19) and the hinged joint of the buckle (22).
5. The anti-vibration fixing pin according to claim 2, characterized in that: An abutment pin (20) slides inside the pin body (10), one end of the abutment pin (20) abuts against the trigger block (18), and a thread inside the shock absorbing cavity (21) is located between the pressure rod (11) and the abutment pin (20), and a side of the pressure rod (11) close to the abutment pin (20) cooperates with the thread.