Anti-impact pin shaft
By setting buffer components on the pin, including limit sliders, springs and gaskets, the abnormal noise and axial impact problems of the pin during mechanical operation are solved, achieving a more stable connection and a longer service life.
Patent Information
- Application Number
- CN202421146725.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Existing pins are prone to abnormal noise during mechanical operation and are susceptible to axial impact, resulting in damage.
An impact-resistant pin is designed, and a buffer assembly is used to include a limit slider, a spring and a gasket. The axial impact force is reduced through the coordination of the limit slider and the spring; the gasket absorbs radial impact force through friction. .
It effectively avoids abnormal noise from the pin, reduces the axial impact force, and reduces the radial impact force through the absorption of the gasket, extending the service life of the pin.
Smart Images
Figure CN222254601U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of pins, and in particular relates to an impact-resistant pin. Background Art
[0002] Pins are a type of standardized fasteners that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinges of two parts. After the connection, the pins are in a loose state, so when the machine is running, the pins will produce abnormal noises. Nowadays, the heads of the pins are usually subject to axial impacts, which may cause damage to the pins. Utility Model Content
[0003] The utility model aims at the deficiencies of the prior art and provides an impact-resistant pin shaft.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an impact-resistant pin shaft, comprising a pin rod, characterized in that: a pin cap is fixed on the top of the pin rod, a buckle hole is opened on the side of the pin rod away from the pin cap, and a buffer assembly is sleeved on the pin rod;
[0005] The buffer assembly includes a limiting slider sliding on the pin rod, the limiting slider is fixed to the pin cap through a spring, and a gasket is also sleeved on the outer peripheral side of the pin rod, and the gasket is located between the limiting slider and the buckle hole.
[0006] Optionally, the outer peripheral side of the limit slider is provided with an inclined surface, and the inclined surface faces the direction of the gasket. One side of the spring is fixed to the end face of the pin cap, and the other side is fixed to the limit slider.
[0007] Optionally, at least two limiting protrusions are fixed to the outer peripheral side of the pin rod, and the gasket is sleeved on the limiting protrusions.
[0008] Optionally, at least two buckling grooves are formed on the inner wall of the gasket, the buckling grooves correspond to the limiting protrusions, and the limiting protrusions and the buckling grooves are both arranged in arc surfaces.
[0009] In summary, compared with the prior art, the present invention has the following beneficial effects:
[0010] 1. Due to the setting of the buffer component, the setting of the limit slider and the spring can effectively prevent the pin from making abnormal noise after the pin is installed, and also reduce the axial impact force of the pin. Then, the gasket is completely abutted against the inner wall of the part, and the radial impact force in the pin can be effectively reduced through the absorption of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional diagram of the utility model.
[0012] Figure 2 It is the front view of the utility model.
[0013] Figure 3 For this utility model Figure 2 Cross-sectional view along the AA direction.
[0014] 10. Pin rod; 11. Pin cap; 12. Limit slider; 13. Gasket; 14. Spring; 15. Limiting protrusion; 16. Snap-fit groove. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.
[0016] As shown in Figure 1-3, an impact-resistant pin shaft includes a pin rod 10, which is characterized in that: a pin cap 11 is fixed to the top of the pin rod 10, a snap hole is opened on the side of the pin rod 10 away from the pin cap 11, a buffer assembly is sleeved on the pin rod 10, and the buffer assembly includes a limit slider 12 sliding on the pin rod 10, the limit slider 12 is fixed to the pin cap 11 by a spring 14, and a gasket 13 is also sleeved on the outer peripheral side of the pin rod 10, and the gasket 13 is located between the limit slider 12 and the snap hole, and the outer peripheral side of the limit slider 12 is set as an inclined surface, and its inclined surface faces the direction of the gasket 13, one side of the spring 14 is fixed to the end face of the pin cap 11, and the other side is fixed to the limit slider 12.
[0017] At least two limiting protrusions 15 are fixed on the outer peripheral side of the pin rod 10, and the gasket 13 is sleeved on the limiting protrusions 15. At least two snap-fitting grooves 16 are opened on the inner wall of the gasket 13, and the snap-fitting grooves 16 correspond to the limiting protrusions 15. Both the limiting protrusions 15 and the snap-fitting grooves 16 are arranged in arc surfaces.
[0018] When in use, the pin shaft can be directly inserted into the two parts, and then the pin cap 11 is pressed hard, and the spring 14 is compressed by the limit slider 12 abutting against the surface of the part, and then the buckle hole is exposed, and the wire is inserted into the buckle hole to limit the pin shaft, so that the pin shaft is tightly connected between the two parts, effectively avoiding abnormal noise of the pin shaft, and also reducing the axial impact force of the pin shaft. After insertion, the pin shaft can be pushed obliquely with force to make the gasket 13 close to the inner wall of the part, and then the pin rod 10 is rotated. The gasket 13 and the pin rod 10 produce relative rotation due to friction, so that the limiting protrusion 15 abuts against the position of the gasket 13 where the buckling groove 16 is not provided, which can support the overall expansion of the gasket 13, and then the gasket 13 is completely abutted against the inner wall of the part, and the radial impact force in the pin shaft can be effectively reduced through the absorption of the gasket 13.
[0019] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
Claims
1. An impact-resistant pin shaft, comprising a pin rod (10), characterized in that: A pin cap (11) is fixed to the top of the pin rod (10), a buckle hole is provided on a side of the pin rod (10) away from the pin cap (11), and a buffer assembly is sleeved on the pin rod (10); The buffer assembly comprises a limit slider (12) sliding on the pin rod (10), the limit slider (12) being fixed to the pin cap (11) via a spring (14), and a gasket (13) being sleeved on the outer peripheral side of the pin rod (10), the gasket (13) being located between the limit slider (12) and the buckle hole.
2. The impact-resistant pin according to claim 1, characterized in that: The outer peripheral side of the limit slider (12) is provided with an inclined surface, and the inclined surface faces the direction of the gasket (13); one side of the spring (14) is fixed to the end surface of the pin cap (11), and the other side is fixed to the limit slider (12).
3. The impact-resistant pin according to claim 1, characterized in that: At least two limiting protrusions (15) are fixed on the outer peripheral side of the pin rod (10), and the gasket (13) is sleeved on the limiting protrusions (15).
4. The impact-resistant pin according to claim 3, characterized in that: At least two buckling grooves (16) are provided on the inner wall of the gasket (13), the buckling grooves (16) correspond to the limiting protrusions (15), and the limiting protrusions (15) and the buckling grooves (16) are both arranged in arc surfaces.