The invention provides a lifting hook having a self-locking function, relating to hoisting equipment parts. The lifting hook comprises a lifting hook shell, a pulley block and a lifting hook, wherein the pulley block and the lifting hook are hooked inside the lifting hook shell; the lifting hook is characterized by comprising a lifting hook A and a lifting hook B which are symmetrically arranged under the pulley block inside the lifting hook shell by a shaft, spring struts are arranged at the opposite positions of the lifting hook shell and the upper part of the lifting hook A and the lifting hook shell and the upper part of the lifting hook B, springs are arranged on the spring struts; a clamping hole is processed at the outer side of the lifting hook A, close to the bottom; a clamping hook is arranged at the bottom of the lifting hook B, the contact positions between the spring and the lifting hook A and between the spring and the lifting hook B are higher than the position of the shaft, and the clamping hook is arranged on a screw rod which is arranged on the lifting hook B by an adjusting bolt. The lifting hook has the characteristics of novel structure, convenience in processing, convenience in use and safety and reliability, is novel and has economical efficiency and practicability.
Lifting hook having self-locking function
03.06.2015
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
Lifting hook self-locking device and lifting appliance comprising lifting hook self-locking device
Europäisches Patentamt | 2023
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