Anti-decoupling device for crane hook

Abstract

The invention provides a mousing-hook device for a lifting hook of a crane. The mousing-hook device for the lifting hook of the crane comprises an anti-off plate which is hinged to the lifting hook. A torsional spring is arranged on the hinging position of the anti-of plate and the lifting hook. The anti-off plate consists of two blocking plates. The two blocking plates are slidably connected through an elastic telescopic structure. The elastic telescopic structure comprises a stretchable telescopic part and a compressing elastic part which is arranged between the two ends of the telescopic part. The two ends of the telescopic part are correspondingly connected with the two blocking plates. The expanding and contracting of the telescopic part can drive the two blocking plates to relatively slide to make the anti-off plate be expanded and contracted. When the anti-off plate is located in the working position of closing the lifting hook, the length of the anti-off plate is larger than the distance from a hook tip of the lifting hook to the hinging position of the anti-off plate and the lifting hook, and meanwhile, the compressing elastic part is in the compressed state. According to the mousing-hook device for the lifting hook of the crane, the space in a hook body of the lifting hook can be used to a large extent, the mousing-hook device for the lifting hook of the crane can be more conveniently applied to the occasions where hanging tools are frequently changed, the operation is convenient, the hanging efficiency can be effectively improved, and the safety of operators can be ensured.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to an anti-decoupling device for a crane hook. Background technique [0002] At present, the anti-decoupling device of the crane hook is not conducive to the operator's use of the hook, it is easy to scratch the hands, and it is inconvenient to operate the hook. Some hook anti-decoupling devices will prevent the third or fourth sling from being snapped in, or the hook anti-decoupling device cannot return to the normal working position after the sling is snapped in. [0003] Most hook anti-decoupling devices are simple baffles using springs, which are inefficient for hook removal and hooking during use, and actual users will use multiple slings to lift items, but too many slings or wire ropes affect the hook The reset of the anti-decoupling device makes the anti-decoupling device unable to be in the normal working position. [0004] The hook anti-decoupling device designed by the pa...

AI Technical Summary

Problems solved by technology

[0002] At present, the anti-decoupling device of the crane hook is not conducive to the operator's use of the hook, it is easy to scratch the hands, and it is inconvenient to operate the hook. Some hook anti-decoupling devices will prevent the third or fourth sling from being snapped in, or the hook anti-decoupling device cannot return to the normal working position after the sling is snapped in

[0003] Most hook anti-decoupling devices are simple baffles using springs, which are inefficient for hook removal and hooking during use, and actual users will use multiple slings to lift items, but too many slings or wire ropes affect the hook The reset of the anti-decoupling device makes the anti-decoupling device unable to be in the normal working position

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