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T-shaped bolt with tenons

A mortise and bolt technology, applied in the direction of bolts, screws, nuts, etc., can solve the problems of bolts falling out of groove, T-shaped bolts can not fully meet the anti-loosening and anti-slip requirements, and affect operational safety, etc., to achieve increased friction, enhanced strength, Avoid the effect of bolt degrooving

Inactive Publication Date: 2020-09-22
嘉兴同辉汽配有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The T-bolts currently used in design and construction cannot fully meet the anti-loosening and anti-slip requirements. There have been incidents in the subway that have similar bolts falling out of grooves and have affected operational safety.

Method used

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  • T-shaped bolt with tenons
  • T-shaped bolt with tenons
  • T-shaped bolt with tenons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] refer to Figure 1 to Figure 3 , the present invention is a T-shaped bolt with tenons, including a screw head 1 and a screw rod 2, and the screw rod 2 includes a square anti-rotation neck section 21 and a threaded section 22 provided with external threads, the screw head 1 and the screw rod 2 The threaded sections 22 are respectively located at both ends of the anti-rotation neck section 21. The screw head 1 is rectangular and has several tenons 11 on the side close to the screw rod 2. The long side of the rectangular screw head 1 protrudes outwards to form an arc Shape, the side of the screw head 1 close to the screw rod 2 is provided with several ribs 12, the tenon 11 is located near the short side of the rectangle of the screw head 1, and the side of the tenon 11 is provided with several pointed protrusions 111, so The end of the tenon 11 is provided with a first guide section 112, the first guide section 112 is truncated, and the cross-sectional area of ​​the first ...

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PUM

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Abstract

The invention discloses a T-shaped bolt with tenons. The T-shaped bolt comprises a screw head and a screw rod; the screw rod comprises a square spline neck section and a threaded section provided withexternal threads; the screw head and the threaded section are located at the two ends of the spline neck section separately; the screw head is rectangular, a plurality of tenons are arranged on the surface, close to the screw rod, of the screw head, and the two sides of long sides of the rectangle of the screw head extend in an outward protruding mode to form arc shapes to enhance the strength ofthe screw head; the tenons are arranged on the bottom surface of the screw head, the tenons are provided with pointed protrusions, the tenons and the pointed protrusions are formed into compound tenons which are matched with compound mortises formed by main mortises and auxiliary mortises in a pre-embedded groove passage in a concave-convex mode, and thus the installation is convenient, and the bolt can be effectively prevented from being separated from a groove; and by arranging the square neck portion, the friction is increased through convex edges of the bottom surface of the screw head, and the bolt rotation is limited.

Description

【Technical field】 [0001] The invention relates to the technical field of bolts, in particular to the technical field of a T-shaped bolt with a tenon. 【Background technique】 [0002] The embedded channel is often used in rail transit, and the reliability of its connection with the T-bolt directly affects the safety of the later use of the project. The T-bolts currently used in design and construction cannot fully meet the anti-loosening and anti-slip requirements. There have been incidents in the subway that have similar bolts falling out of grooves and have affected operational safety. 【Content of invention】 [0003] The purpose of the present invention is to solve the problems in the prior art, and to propose a T-shaped bolt with a mortise, which has a good effect of preventing falling out. [0004] In order to achieve the above object, the present invention proposes a T-bolt with tenons, including a screw head and a screw rod, the screw rod includes a square anti-rotati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/06F16B39/28
CPCF16B35/06F16B35/048F16B39/28
Inventor 蒋雪良
Owner 嘉兴同辉汽配有限公司
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