Fastener

Abstract

The invention discloses a fastener for clamping an object. The fastener comprises a first clamping arm and a second clamping arm, wherein the first end of the first clamping arm is in rotatable connection with the first end of the second clamping arm, and a cavity for containing the object when the object is clamped is formed between the first clamping arm and the second clamping arm. The fastener is characterized in that the second end of the first clamping arm is connected with a first hasp; the first end of the first hasp faces the direction of the cavity and penetrates through the through hole in the second end of the first clamping arm to wind the edge of the through hole; the first end of the first hasp is positioned in the cavity and is in frictional contact with the object when the object is clamped by the fastener; the first hasp is used for being jointed with a locking device; and the locking device is also used for being jointed with the second end of the second clamping arm.

Description

technical field [0001] The invention relates to the technical field of fastening devices, in particular to fasteners for clamping objects. The fastener is, for example, a construction fastener used to build a scaffold. Background technique [0002] Fasteners, as a fastening device, are widely used in various fields for fastening, for example, they are used in the construction field to build scaffolding. In the prior art, the fastener generally includes a cover plate and a base (hereinafter collectively referred to as “clamp arms”), and a rotatable connection is formed between the cover plate and the base through a pin shaft. [0003] Existing fasteners generally include fasteners made by casting and fasteners formed by hot forging. [0004] Due to the casting process, the fasteners made by casting need to heat the raw materials, injection molding, annealing and other processes, so the energy consumption is high, the requirements for processing equipment are high, and the p...

AI Technical Summary

Problems solved by technology

[0006] The common disadvantage of the prior art fasteners including the above fasteners is that their fastening strength is not high, which is mainly due to the insufficient strength of the pin connection between the cover plate and the base, and the pin connection only relies on Its own structural strength and force to provide the required fastening strength

In order to further improve the strength of the fastener, it is necessary to increase the thickness of the cover plate, the base and the connecting part of the pin shaft, thereby increasing the material usage of the fastener, resulting in an increase in cost and the weight of the fastener itself

[0007] In addition, in traditional fasteners, the active link (or rotational connection) between the clip arms of the fastener is a weak link. Once deformed or damaged, it is often irreversible, and the fastener is immediately damaged, resulting in a reduction in the safety of the fastener.

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