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
CN108799307BInactive Publication Date: 2020-07-21瑞安市宏志钢业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
瑞安市宏志钢业有限公司
Publication Date
2020-07-21
Estimated Expiration
Not applicable · inactive patent

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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.
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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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