Anti-disengagement device for lifting hook of crane

Abstract

The invention discloses an anti-disengagement device for a lifting hook of a crane. The anti-disengagement device comprises a hook-shaped main body and a rotating frame. An upper support is connectedto the side face of the top of the hook-shaped main body. A vertical sliding groove is formed in the bottom of the upper support. A spring is arranged in the sliding groove. A notch is formed in an arc section of the hook-shaped body. A spring pin is arranged above the notch. A handle is connected to the side wall of the spring pin. The head of the handle penetrates through the outer wall of the hook-shaped body. One end of the rotating frame is connected with a rotating shaft. The rotating shaft is embedded in the sliding groove, and the side wall of the rotating shaft abuts against the upperend of the spring. The other end of the rotating frame is connected with a connecting rod, and a groove is formed in the middle of the connecting rod. When the connecting rod on the rotating frame isclamped in the notch, the tail portion of the spring pin is embedded in the groove in the middle of the connecting rod. By arranging a double-protection mechanism comprising the notch and the groove,the rotating frame can be effectively protected from being bounced off under the using state, and the phenomenon that a heavy object slides off from the lifting hook is prevented.

Description

technical field [0001] The invention relates to an anti-off device for a crane hook. Background technique [0002] Crane, as the commonly used hoisting equipment in the processing and production of the workshop, is widely used in the processing and production of the workshop. The end of the crane is connected to the heavy object through the hook. When hoisting, in order to protect the safety of personnel and the safety of the hoisted goods, various safety measures are often required to prevent the goods from slipping from the hook. [0003] Among them, the most commonly used is to design the anti-off hook, or to design the auxiliary anti-off mechanism on the hook. However, the existing anti-off hooks often have insufficient structural strength and are prone to damage during use. , Invisibly increased the production cost of the enterprise. Contents of the invention [0004] The purpose of the present invention is in order to solve the deficiencies in the prior art above, ...

AI Technical Summary

Problems solved by technology

[0003] Among them, the most commonly used is to design an anti-off hook, or to design an auxiliary anti-off mechanism on the hook. However, the existing anti-off hooks often have insufficient structural strength and are prone to damage during use. , which virtually increases the production cost of the enterprise

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