Folding fastener

Abstract

The invention relates to a folding fastener which comprises a fastener A, a nut, a bolt, a fastener B, a hinged pin B, a center plate and a hinged pin A. The center plate is a center part and is integrally of a set square-shaped structure. A coil hole is arranged at the position of one angle of the center plate and is connected with the fastener A through the hinged pin A. A coil hole is arranged at the position of another angle of the center plate and is connected with the fastener B through the hinged pin B. A through hole is arranged at the third angle of the center plate. The bolt is inserted in the through hole and is screwed down by the nut, so that the fastener A, the center plate and the fastener B are connected and fixed on the bolt, and thus, the lap joint or the connection fixing of beam frames is realized. In the invention, after being subjected to cold press molding, a steel plate is subjected to double rust protection treatment of purification and galvanization, so that the rust-proofing capability is greatly improved and the service life is long and is far longer than that of a common fastener; due to the adoption of a cold press folding technology, in the production process, the energy consumption is low and no pollution is generated; and the folding fastener has a simple overall structure, is convenient to operate and use and has high stability and high reliability.

Description

Technical field [0001] The present invention relates to fasteners, in particular to a folding fastener. Background technique [0002] At present, both urban and rural areas are paying more and more attention to environmental planning, such as urban landscape belts, municipal road isolation belts, guardrails, agricultural vegetable greenhouses, breeding greenhouses, fences, etc., usually metal pipes or solid metal strips are welded as support skeleton. Through practice, it is known that the use of metal pipe welding as a support frame for landscape belts, isolation belts, guardrails, vegetable greenhouses, farming greenhouses, fences, etc., has high cost, inconvenient transportation and installation, and is not beautiful, easy to rust, and requires long-term maintenance. , There are many defects. Chinese patent 95108858.0 discloses a quick-connect fastener. A pin lock is installed on a movable buckle plate, and long holes and through-slot holes are provided on the fastener body ...

AI Technical Summary

Problems solved by technology

First of all, the adjustment range of the locking diameter is very small, and because the locking is carried out by piercing the wedge-shaped lock pin after overlapping the two holes, the processing accuracy of the two holes is required to be high, which undoubtedly increases the processing cost.

Especially due to its structural defects, the fastening operation is very inconvenient, which not only reduces the construction progress, but also increases the labor intensity of the fastening operation

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