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Anti-loosening screw fastener connection structure

A technology for threaded fasteners and connection structures, which is applied in the direction of threaded fasteners, connecting components, locking fasteners, etc. It can solve problems that affect the use of equipment, simple nut structure, and potential safety hazards, so as to prevent loosening , Eliminate potential safety hazards and reduce the possibility

Inactive Publication Date: 2018-03-09
天津市宇龙鑫金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bolts and nuts used in the prior art are simple in structure, and they are easy to loosen after they are fixed, causing the bolts to fall
This situation will not only affect the use of equipment, but also pose a very large security risk

Method used

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  • Anti-loosening screw fastener connection structure
  • Anti-loosening screw fastener connection structure
  • Anti-loosening screw fastener connection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] This embodiment includes a part A11, a part B10, a screw and a combined nut. The part A11 and the part B10 are connected through the cooperation of the screw and the combined nut. The screw includes a head 1, a positioning section 3 and a threaded section 4. The head 1 described above has a hexagonal prism structure, and the combined nut includes an inner nut and an outer nut 8, both of which are connected to the threaded section 4 of the screw rod through threads, wherein the inner nut is installed between the part B10 and the outer nut 8 In between, the inner nut and the outer nut 8 are respectively provided with conical bosses 9 and grooves that cooperate with each other, wherein the bosses 9 are concentrically arranged with the screw rod, and the grooves are eccentrically arranged with the bosses 9, and the eccentricity is the boss 9 1 / 20 of the middle diameter, the inner nut includes a hexagonal prism section 6 and a cylindrical section 7, the cylindrical section 7 ...

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PUM

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Abstract

The invention belongs to the technical field of screw fasteners and particularly relates to an anti-loosening screw fastener connection structure. The anti-loosening screw fastener connection structure comprises a part A, a part B, a screw and combined nuts, wherein the part A and the part B are connected by the cooperation of the screw and the combined nuts. The screw comprises a head, a positioning section and a threaded section, wherein the head is of a hexagonal prism structure. The combined nuts comprise an inner nut and an outer nut both of which are threadedly connected through the threaded section of the screw, wherein the inner nut is installed between the part B and the outer nut. The inner nut and the outer nut are respectively provided with mutually matched conical bosses and grooves, wherein the bosses and the screw are arranged concentrically, the grooves and the bosses are arranged eccentrically, and the eccentric distance is 1 / 20 of the pitch diameter of the bosses. Theinner nut includes a hexagonal prism section and a cylindrical surface section, wherein the cylindrical surface section is inserted into the outer nut. The side of the outer nut is provided with a spring pin at a position corresponding to the cylindrical surface section.

Description

technical field [0001] The invention belongs to the technical field of threaded fasteners, in particular to a loosening-proof threaded fastener connection structure. Background technique [0002] Threaded fasteners are the most widely used mechanical basic parts, and their function is to realize the mutual connection and fixation between parts. However, the bolts and nuts used in the prior art are simple in structure, and they are easy to loosen after they are fixed and cause the bolts to drop. This situation will affect not only the use of equipment, but also has a very large potential safety hazard. Therefore, it is necessary to improve the structures of the bolts and nuts so that the two can be permanently fixed to ensure the long-term use of the equipment and reduce potential safety hazards. Contents of the invention [0003] The present invention provides an anti-loosening threaded fastener connection structure to solve the problems raised in the above-mentioned bac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/282F16B39/12F16B39/02
CPCF16B39/282F16B39/02F16B39/12
Inventor 李东玉
Owner 天津市宇龙鑫金属制品有限公司
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