一种加长型汽车螺丝

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By designing an extended automotive bolt that integrates a square hole shaft, a reinforced shaft, an extended shaft, and a threaded rod, and utilizing an elastically connected guide plate and extruded rubber, the problem of insufficient contact area in extended automotive bolts during vibration use was solved, achieving a more stable long-term connection.

CN224515620UActive Publication Date: 2026-07-17WUJIANG SCREWTECH PRECISION IND

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: WUJIANG SCREWTECH PRECISION IND
Filing Date: 2025-08-26
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

Extended automotive bolts are not conducive to increasing the surface contact area during vibration use, which is detrimental to long-term stable connection.

Method used

Design an extended automotive screw. The screw structure includes a square hole shaft, a reinforcing shaft, an extended shaft, and a threaded rod integrally formed, with a welded mounting plate. It is elastically connected to the contact extrusion rubber via a spring, thereby increasing the contact area with the automotive connection point and achieving elastic buffering.

Benefits of technology

By increasing the contact area and adding elastic cushioning, the stability and long-term performance of the screws in vibration environments are improved.

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Abstract

本实用新型公开了一种加长型汽车螺丝，包括螺丝结构和螺帽，螺丝结构的下端螺纹连接有螺帽；螺丝结构，用于紧固连接，方孔轴、加固轴、加长轴、螺纹杆一体成型，拓盘焊接在加长轴上，且拓盘通过弹簧与接触挤压橡胶弹性连接，使得接触挤压橡胶与汽车接触，所述螺丝结构包括方孔轴、加固轴、加长轴和拓盘，所述方孔轴的下端固定连接有加固轴，加固轴的下端固定连接有加长轴，所述加长轴的中心下端固定连接有螺纹杆。本实用新型为加长型汽车螺丝，通过结构的设置，实现加固连接的目的。

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Claims

1. An extended length automotive screw, characterized by: It includes a screw structure (1) and a nut (2), with the nut (2) threadedly connected to the lower end of the screw structure (1); The screw structure (1) is used for fastening connection. The square hole shaft (3), the reinforcing shaft (4), the extended shaft (5), and the threaded rod (9) are integrally formed. The swivel (6) is welded to the extended shaft (5), and the swivel (6) is elastically connected to the contact extrusion rubber (8) through the spring (7), so that the contact extrusion rubber (8) contacts the car.

2. The elongated automotive screw of claim 1, wherein: The screw structure (1) includes a square hole shaft (3), a reinforcing shaft (4), an extension shaft (5), and a guide plate (6). The lower end of the square hole shaft (3) is fixedly connected to the reinforcing shaft (4), the lower end of the reinforcing shaft (4) is fixedly connected to the extension shaft (5), and the lower center of the extension shaft (5) is fixedly connected to a threaded rod (9).

3. The elongated automotive screw of claim 2, wherein: A swivel plate (6) is welded onto the extended shaft (5). A spring (7) is fixedly connected to the lower end of the swivel plate (6). A contact extrusion rubber (8) is elastically connected to the lower end of the spring (7).

4. The lengthened automotive screw of claim 3, wherein: The contact extrusion rubber (8) is sleeved on the outside of the threaded rod (9), and the two ends of the car are connected through the contact extrusion rubber (8) and the nut (2).

5. The elongated automotive screw of claim 4, wherein: The square hole shaft (3) has a square hole.

6. The elongated automotive screw of claim 5, wherein: The extended shaft (5) is a round rod design, which increases the overall height of the screw structure (1).