一种可二次加固的自攻螺丝

By incorporating a connecting cap, a snap-fit ​​groove, and a stop drill rod into the self-tapping screw, secondary reinforcement of the screw is achieved, solving the problem of loosening and falling off under external forces in different directions, and improving the stability and service life of the connection.

CN224515614UActive Publication Date: 2026-07-17JIANGSU WANYULI STAINLESS STEEL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WANYULI STAINLESS STEEL TECH CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing self-tapping screws are prone to loosening or falling off when subjected to external forces in different directions, which cannot meet the requirements for high connection strength.

Method used

A self-tapping screw capable of secondary reinforcement was designed. By setting a connecting cap, snap-fit ​​groove, rotating groove, limiting plate and abutting drill rod on the screw body, the lateral fixing force is formed by the extrusion force of the abutting drill rod. Combined with a magnetic plate and hot-dip galvanized coating, the connection stability is enhanced.

Benefits of technology

It effectively prevents self-tapping screws from loosening or falling off during use, improves the stability and reliability of the connection, extends the service life, and is suitable for connecting various materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型涉及自攻螺丝技术领域，且公开了一种可二次加固的自攻螺丝，包括自攻螺丝主体：所述自攻螺丝主体的顶端安装有连接帽体，所述连接帽体的底端开设有卡接槽，所述连接帽体的顶端开设有转动槽，所述自攻螺丝主体的顶端开设有安装槽，所述安装槽的内部安装有限位薄板，所述安装槽的内部安装有卡接块，所述限位薄板的底端与卡接块的底端呈抵接。该可二次加固的自攻螺丝，通过可以将自攻螺丝主体进行安装完成后的二次固定，当自攻螺丝主体安装完成后，抵动钻杆的挤压力会施加横向的固定力，进而使自攻螺丝主体与安装面之间形成更为稳固的连接结构，有效防止自攻螺丝主体在使用过程中出现松动或脱落的情况。
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Claims

1. A self-tapping screw which can be reinforced twice, comprising a self-tapping screw body (1): characterized in that, The top of the self-tapping screw body (1) is equipped with a connecting cap (2), the bottom of the connecting cap (2) is provided with a snap-fit ​​groove (3), the top of the connecting cap (2) is provided with a rotating groove (4), the top of the self-tapping screw body (1) is provided with an installation groove (5), a limiting plate (6) is installed inside the installation groove (5), a snap-fit ​​block (7) is installed inside the installation groove (5), the bottom of the limiting plate (6) and the bottom of the snap-fit ​​block (7) are in contact, slots (8) are provided on both sides of the self-tapping screw body (1), a sliding drill rod (9) is slidably connected inside the slot (8), and a slanted groove (10) is provided on the surface of the abutting drill rod (9).

2. The secondary-securing possible self-tapping screw according to claim 1, characterized in that: The angle of the inclined groove (10) is designed to match the size of the snap-fit ​​block (7).

3. The secondary-securing possible self-tapping screw according to claim 1, characterized in that: The end of the abutting drill rod (9) is equipped with a stop plate (11).

4. The secondary-securing possible self-tapping screw according to claim 1, characterized in that: Both sides of the snap-fit ​​block (7) are equipped with protrusions (12), and both sides of the snap-fit ​​groove (3) are provided with grooves (13), and the interior of the groove (13) is snap-fitted with the protrusions (12).

5. The re-securing possible self-tapping screw according to claim 1, characterized in that: A magnetic plate (14) is installed inside the rotating groove (4).

6. The secondary-securing possible self-tapping screw according to claim 1, characterized in that: The surface of the self-tapping screw body (1) is coated with a hot-dip galvanized coating.