Self-tapping and self-locking bolt

A kind of bolt and self-locking technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems of insufficient fixing, easy occurrence of thread back, high manufacturing cost, reduce quality, strengthen fixing effect, and save production resources Effect

Inactive Publication Date: 2019-09-20
湖北登峰高强螺栓有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-tapping and self-locking bolt to solve the solid structure proposed in the above-mentioned background technology, which has a large mass and high manufacturing cost, and is fixed by a single method, resulting in insufficient fixation. For those with frequent vibration and pressure changes position, after a long time, it is easy to have problems such as thread back and shedding.

Method used

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  • Self-tapping and self-locking bolt
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  • Self-tapping and self-locking bolt

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0023] see Figure 1-4 , an embodiment provided by the present invention: a self-tapping and self-locking bolt, including a screw rod 3, one end of the screw rod 3 is equipped with a triangular tapping head 7, and the triangular tapping head 7 is convenient for plastic The inner hole of the metal plate 9 is tapped, the outer side of the triangular tapping head 7 is provided with a broken tooth 8, the screw rod 3 is equipped with a nut 4, a steel washer 1 and a rubber washer 2, the nut 4, the steel washer 1 Used in combination with the rubber gasket 2, the nut 4 and the screw rod 3 are driven by the screw rod, and the length of the end of the screw rod 3 can be adjust...

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Abstract

The invention discloses a self-tapping and self-locking bolt. The self-tapping and self-locking bolt comprises a screw, wherein a triangular tapping hole is formed in one end of the screw; the outer side of the triangular tapping head is provided with breaking teeth, a steel plate washer and a rubber blanket; the screw is internally provided with an inner hole. The screw of the self-tapping and self-locking bolt is internally provided with the inner hole; by adopting the inner hole design, the screw is arranged into a hollow structure, and the quality of the screw can be reduced; in addition, the consumption of a material can be reduced and further the manufacturing cost of the screw is reduced; the screw is provided with a nut; in addition, the steel plate washer is arranged at the bottom end of the nut, and the rubber blanket is arranged below the steel plate washer; the nut can be designed for adjusting the tapping length of the screw into a plastic metal plate; besides, the rubber blanket and the steel plate washer can be designed for enhancing sealing and fixing effects; threads are arranged on the outer side of the screw, so that the screw can be self-locked for fixing; in addition, the screw is matched with the nut to enhance the fixing effect.

Description

technical field [0001] The invention relates to the technical field of self-tapping and self-locking bolts, in particular to a self-tapping and self-locking bolt. Background technique [0002] Self-locking screw refers to a self-tapping screw that does not need to be used with a nut. The thread is self-tapping and the tail is pointed. When the triangular tooth self-extrusion screw is screwed into the hole on the plastic metal material, it is squeezed in by extrusion. The inner thread is formed in the hole and a reliable locking thread connection is formed; the triangular tooth self-locking screw refers to a self-tapping screw whose thread is a triangular tooth, and the tail is pointed and triangular. There are three prismatic threads, first understand the structural elements of self-tapping screws, and then go to understand self-locking screws, because self-locking screws are also a type of self-tapping screws, from the production of self-tapping screws, triangular self-lock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B25/02
CPCF16B25/0021F16B25/0036
Inventor 梅列文梅小文黄亚东贺其新
Owner 湖北登峰高强螺栓有限公司
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