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A detachable expansion bolt

An expansion bolt, No. 1 technology, applied in the direction of bolts, screws, nuts, etc., can solve the problems of inconvenient disassembly, inconvenient use of bolts, restrictions on bolt use, etc., and achieve the effect of improving pulling efficiency

Inactive Publication Date: 2020-07-21
瑞安市宏志钢业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This technical solution can realize the locking of the bolts, but the technical solution plastically extrudes the screw, which is not convenient for the secondary use of the bolts; and this solution is not easy to disassemble, which limits the use of the bolts

Method used

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  • A detachable expansion bolt
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Embodiment approach

[0038] As an embodiment of the present invention, the locking member 15 is a screw 21, and the axial center of the upper surface of the No. 1 nut 1 is provided with a No. 2 threaded hole 22, and the No. 2 threaded hole 22 is used for Cooperate with the screw 21; the screw 21 is used to make the steel wire rope 2 tighten the friction block 17 by cooperating with the second threaded hole 22; when the locking member 15 is a screw 21, the screw 21 can vertically straight movement, thereby driving the steel wire rope 2 to move in the vertical direction; when the screw 21 is screwed down, the steel wire rope 2 is in a loose state, and at this time, the elastic member 19 squeezes the friction block 17 to fasten the inner wall of the No. 1 nut 12; At this time, the bolt has the function of loosening; at the same time, the bolt is not easy to disassemble; when the screw 21 is turned upwards, the steel wire rope 2 tightens the friction block 17, so that the friction block 17 does not con...

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Abstract

The invention belongs to the technical field of connection pieces and particularly provides an expansion bolt convenient to disassemble. The expansion bolt convenient to disassemble comprises a firstscrew cap, a first threaded rod and a first nut. The first threaded rod is fixedly installed on the bottom surface of the first screw cap and coaxial with the first screw cap. The first threaded rod is sleeved with the first nut. The bottom surface, far away from the first screw cap, of the first threaded rod is provided with a first through hole extending to the bottom surface of the first screwcap. The upper surface of the first screw cap is provided with second through holes communicating with the first through hole. A locking piece is fixedly installed on the upper surface of the first screw cap. The other end of each steel wire rope penetrates through an installation plate, the first through hole and the corresponding second through hole to be connected with the locking piece. The steel wire ropes are used for tensioning friction blocks to enable the elastic pieces to be compressed and deformed. According to the expansion bolt convenient to disassemble, through the arrangement ofthe friction blocks and the elastic pieces, the first nut is squeezed, so that locking of the bolt is achieved; a first screw is arranged to drive the steel wire ropes to move in the vertical direction so as to enable the bolt to be convenient to disassemble; and the use efficiency of the expansion bolt convenient to disassemble is improved.

Description

technical field [0001] The invention belongs to the technical field of connectors, in particular to a detachable expansion bolt. Background technique [0002] Bolts are prone to loosening and falling off after long-term use. In the prior art, technical solutions such as expansion bolts and locking bolts have appeared to solve the technical problem of bolt falling off. At present, both locking bolts and expansion bolts are difficult to remove from the workpiece. The problem of disassembly makes it difficult for the workpiece to be disassembled. If a drill is used to forcibly remove the bolt, it will take a lot of man-hours and reduce work efficiency; while the drill is forcibly removing the bolt, the drill will damage the surface of the workpiece. , thereby affecting the re-use of the artifact. [0003] There are also technical solutions for expansion bolts in the prior art. For example, a Chinese patent with application number 201720411623.7 discloses quick installation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B39/28
CPCF16B39/28
Inventor 尹苑苑
Owner 瑞安市宏志钢业有限公司
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