Straight-back lifting hook with buckle type safety piece

Abstract

The invention relates to a straight-back lifting hook with a buckle type safety piece. The straight-back lifting hook with the buckle type safety piece comprises a lifting hook body and a safety piece, wherein the safety piece is arranged at an opening part of the lifting hook body; one end of the safety piece is configured to be a fixed end and is connected with the upper end of the lifting hook body; the other end of the safety piece is configured to be a connection end; an opened pin groove is formed in the end and is connected with a locking pin which is arranged at the lower end of the lifting hook body in a clamping manner, so that the safety piece is connected with the lifting hook body in a releasable locking mode; a sealed rectangular pin groove is formed in the fixed end of the safety piece; a rotation shaft fixedly connected with the upper end of the lifting hook body is arranged in the rectangular pin groove; two opposite support pieces are respectively arranged at the upper end and the lower end of the lifting hook body; a rotation shaft is arranged between the support pieces at the upper end; and a locking pin is arranged between the support pieces at the lower end. Compared with the prior art, the straight-back lifting hook can be welded in any position of the workpiece; and the lifting hook adopts the buckle type safety piece, so that the bearing strength is high, and thus a steel cable of the lifting hook cannot fall off. The straight-back lifting hook is convenient to use, safe and reliable.

Description

technical field [0001] The invention relates to a straight back hook provided with a buckle type safety piece. Background technique [0002] The hook is the most common type of spreader in hoisting machinery. Existing hooks used in workplaces with high risk factor, in order to prevent the steel rope from falling off from the suspension hook and cause accidents, the opening of the suspension hook generally adopts spring cards to prevent the steel rope from slipping. However, in actual use, the hook does not always hang the steel cable vertically with the opening upward. When the hook hangs the steel cable upside down for operations, the spring card often cannot bear the weight of the steel cable, and the steel cable is still easy to fall from the Falling from the hook, causing an accident. In addition, during long-term use, the inner wall of the hook is easily worn, which reduces the strength of the hook and affects the service life. Contents of the invention [0003] Th...

AI Technical Summary

Problems solved by technology

However, in actual use, the hook does not always hang the steel cable vertically with the opening upward. When the hook hangs the steel cable upside down for operations, the spring card often cannot bear the weight of the steel cable, and the steel cable is still easy to fall from the Falling from the hook, causing an accident

In addition, during long-term use, the inner wall of the hook is easy to wear, which reduces the strength of the hook and affects the service life

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