The invention discloses an anti-unhooking lifting hook which comprises a lifting hook body and a safety clamp rotationally installed on the lifting hook body, a return spring is further arranged between the lifting hook body and the safety clamp, the safety clamp comprises a clamp body, the inner side of the upper end of the clamp body is rotationally connected with the lifting hook body, and the upper end of a first-stage limiting baffle and the upper end of a second-stage limiting baffle are fixed to the upper end of the inner side of the clamp body. The second-stage limiting baffle is located between the first-stage limiting baffle and the clamping body, a through hole is formed in the second-stage limiting baffle, a sensor is fixedly installed on the inner side of the clamping body and penetrates through the through hole to be in contact fit with the first-stage limiting baffle, and a spring damping device is arranged between the second-stage limiting baffle and the clamping body. The safety of the lifting hook device and the safety clamp is improved while low cost and convenience in operation are reserved, the operation safety is improved by additionally arranging the first-stage limiting baffle and the second-stage limiting baffle, and the life and property safety is guaranteed.
本发明公开了一种防脱钩吊钩,包括吊钩本体以及转动安装在吊钩本体上的保险卡,吊钩本体和保险卡之间还设有回位弹簧,保险卡包括卡体,卡体上端内侧转动连接吊钩本体,一级限位挡板、二级限位挡板的上端固定在卡体内侧上端,下端为自由端,二级限位挡板位于一级限位挡板和卡体之间,二级限位挡板上具有通孔,卡体内侧固定安装有传感器,传感器穿过通孔与所述的一级限位挡板接触配合,二级限位板与卡体之间设有弹簧阻尼装置。保留低成本和操作方便的同时,提升吊钩装置和保险卡的安全性,增设一级、二级限位挡板提高了作业安全性,保障了生命财产安全。
Anti-unhooking lifting hook
防脱钩吊钩
2023-10-27
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Anti-unhooking device and anti-unhooking method for lifting hook
European Patent Office | 2023
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