Disassembly-prevention fastener

A fastener and anti-disassembly technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve problems such as increasing the difficulty of disassembly
CN106194971AInactive Publication Date: 2016-12-07่‹—่ถ…
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
่‹—่ถ…
Publication Date
2016-12-07
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a disassembly-prevention fastener. The disassembly-prevention fastener comprises a bolt and a nut, wherein at least one groove along the length direction is formed in the bolt; a concave cavity used for accommodating a locking block is formed in the nut; the width of the concave cavity is the same as the width of the groove; the bottom of the concave cavity communicates with the threaded hole of the nut; a through hole penetrates through the top of the concave cavity and the outer wall of the nut; the locking block is arranged in the concave cavity; the vertical height of the locking block is smaller than the depth of the concave cavity and is larger than the depth of the groove; during use, the concave cavity in the nut corresponds to the groove in the bolt; then a round rod is inserted into the through hole; the bottom of the round rod is pressed against the locking block; the locking block is pushed hard, so that the bottom of the locking block is in contact with the bottom of the groove; the height of the locking block is larger than the depth of the groove, so that the upper part of the locking block is still located in the concave cavity; and therefore, relative rotation of the bolt and the nut is limited, and the aim of disassembly-prevention is realized.
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Description

technical field

[0001] The invention relates to a fastener, in particular to an anti-disassembly fastener. Background technique

[0002] Fasteners are an indispensable necessity in our life. They are used to flexibly fix two objects. The fasteners currently used are all detachable. The bolts and nuts can be disassembled freely, but some special places need to install the nuts. Finally, it is permanently fixed on the bolt or greatly increases the difficulty of disassembly to prevent disassembly to increase the anti-theft and anti-loss functions. Contents of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides an anti-disassembly fastener. The anti-disassembly fastener has a groove on the bolt, and a locking block is arranged on the nut, and the locking block snaps into the groove. In order to limit the relative rotation between the bolt and the nut, so as to achieve the purpose of anti-disassembly, anti-theft and a...

Claims

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