Anti-loosening device for bolts

Abstract

The invention relates to a bolt looseness preventing device which comprises a connected piece, a bolt and a looseness preventing compacting device. The bolt looseness preventing device is characterized in that the connected piece is fixedly connected by the bolt, and the extending part of the bolt is fixedly connected with the looseness preventing compacting device; the looseness preventing compacting device is composed of a limiting ring, a shell and a compacting panel, and the limiting ring is sleeved on the outer side of the shell; one side of the shell is fixedly connected with the compacting panel through a compression spring; a first groove is formed in the circumferential direction of the shell, and a first semi-cylindrical baffle body is arranged in the first groove; and a second groove is formed in the inner wall of the limiting ring, and a second semi-cylindrical baffle body is arranged in the second groove. The compacting panel is compacted on the surface of a nut, and the nut can drive the looseness preventing compacting device to loosen together; but, at the moment, the planes of the first semi-cylindrical baffle body and the second semi-cylindrical baffle body contacts with each other, and a looseness preventing connecting long shaft and a looseness preventing connecting short shaft are fixed, so that the nut cannot loosen.

Description

technical field [0001] The invention relates to the field of fasteners, in particular to the field of bolt anti-loosening devices. Background technique [0002] As a fastener, bolts have been widely used in many industries in life, but there are many disadvantages in the fastening and connection of bolts. After the bolts are fastened, after a period of time, due to vibration or other reasons, they will The looseness of the bolted objects may cause the collapse or destruction of the bolted structure, and may even endanger human life, so it is particularly important to prevent the bolted connection from loosening. In order to solve the above problems, the utility model provides a bolt anti-loosening device. [0003] Therefore, how to improve the bolts on the market so that it can overcome the above-mentioned shortcomings and have the above-mentioned advantages is a problem to be solved urgently by those skilled in the art. Contents of the invention [0004] The purpose of ...

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Problems solved by technology

[0002] As a fastener, bolts have been widely used in many industries in life, but there are many disadvantages in the fastening and connection of bolts. After the bolts are fastened, after a period of time, due to vibration or other reasons, they will The looseness of the bolted objects may cause the collapse or damage of the bolted structure, and may even endanger human life. Therefore, it is particularly important to prevent the bolted connection from loosening.

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