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Anti-looseness bolt for highway guardrail

An anti-loosening bolt, highway technology, applied in the directions of bolts, screws, nuts, etc., can solve the problems of poor anti-loosening effect and unguaranteed fastening reliability, and achieve good fastening reliability and convenient use. Effect

Pending Publication Date: 2019-08-13
浙江盛世瑞金紧固件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional bolts generally include a head and a screw connected under the head. The structure of the bolt is simple, and the anti-loosening effect is not good. When the bolt is used in a vibration situation, the fastening reliability cannot be guaranteed.

Method used

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  • Anti-looseness bolt for highway guardrail
  • Anti-looseness bolt for highway guardrail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] refer to figure 1 , 2 , a kind of anti-loosening bolt for expressway guardrail of the present invention, comprises bolt main body 1, sleeve body 2, positioning groove 3, positioning body 4, first nut body 5, second nut body 6, annular step 7, annular body 8. Connecting body 9, a number of fixing nails 10, a number of fixing grooves 11, a number of fixing bodies 12 and an annular skirt 13, the screw of the bolt main body 1 is provided with a sleeve body 2 and a first nut body 5 threadedly connected , the first nut body 5 is pressed against the rear end of the sleeve body 2, the inner wall of the sleeve body 2 is provided with a positioning body 4, and the screw rod of the bolt body 1 is provided with a positioning groove matched with the positioning body 4 3. The front end peripheral surface of the first nut body 5 is provided with an annular skirt 13, and the peripheral surface of the annular skirt 13 is provided with uniformly distributed fixing grooves 11, and the re...

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PUM

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Abstract

The invention discloses an anti-looseness bolt for a highway guardrail. The anti-looseness bolt comprises a bolt main body, a sleeve body, a positioning groove, a positioning body, a first nut body, asecond nut body, an annular step, an annular body, a connecting body, a plurality of fixing nails, a plurality of fixed grooves, a plurality of fixed bodies and an annular skirt edge; a screw rod ofthe bolt main body is provided with the sleeve body and the first nut body connected with the screw rod through threads in a sleeved manner; the first nut body is pressed against the rear end of the sleeve body; the inner wall of the sleeve body is provided with the positioning body; the screw rod of the bolt main body is provided with the positioning groove matched with the positioning body; theperipheral surface of the front end of the first nut body is provided with the annular skirt edge; and the fixed grooves are uniformly distributed on the peripheral surface of the annular skirt edge.Compared with the prior art, the anti-looseness bolt can be fastened as well as is good in reliability and convenient to use.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of fasteners, in particular to the technical field of anti-loosening bolts for expressway guardrails. [0003] 【Background technique】 [0004] Fasteners are the most widely used basic parts, and are the general term for a class of mechanical parts used when two or more parts or components are fastened into a whole. There are many types and specifications of fasteners, each with different functions and uses, and the degree of standardization, serialization and generalization is extremely high. Among them, bolts are the most common type of fasteners. Conventional bolts generally include a head and a screw connected under the head. The bolts of this structure are simple in structure, and the anti-loosening effect is not good. When the bolt is used in a vibration situation, the fastening reliability cannot be guaranteed. [0005] 【Content of invention】 [0006] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12F16B39/02
CPCF16B39/12F16B39/02
Inventor 李永超高永强
Owner 浙江盛世瑞金紧固件股份有限公司