The invention discloses a self-locking hook. The self-locking hook comprises a lifting rod and a hook body, a plurality of through holes are machined in the lifting rod, and pivots are inserted into the through holes; and the pivots are externally connected with a lifting device, and a strip-shaped groove is further formed in the lifting rod. The hook body is rotationally connected with the lifting rod through the third pivot, and the sharp end of the hook body coordinates with the strip-shaped groove of the lifting rod. The rotating range of the hook body does not exceed the maximum size of the strip-shaped groove, the strip-shaped groove is formed in the arc-shaped portion of the lifting rod, the third pivot penetrates through the strip-shaped groove, and through holes are machined in the two sides of the strip-shaped groove. According to the self-locking hook, the hook body is movably mounted on the lifting rod, a weight is hung, the lifting rod is pulled up, the lifting rod is in avertical state, the weight is hung on the hook body, the arc-shaped end of the hook is inserted into the strip-shaped groove under the action of gravity, the lifting rod and the hook body bear tensile force to be in a locked state, and self-locking is achieved.
本发明公开了一种自锁挂钩,包括提拉杆和钩体,所述的提拉杆上加工有若干通孔,通孔中插装有枢轴,枢轴外接提升装置,提拉杆上还开设有条形槽;所述的钩体通过第三枢轴可转动连接提拉杆,钩体的尖端部与提拉杆的条形槽互相配合,所述的钩体的转动范围不超过条形槽的最大尺寸,所述的条形槽开设在提拉杆的弧形部位,所述的第三枢轴贯穿条形槽,条形槽的两个侧部加工有通孔。本发明装置的钩体活动安装在提拉杆上,吊挂重物并将提拉杆拉起,提拉杆处于竖直状态,重物吊挂在钩体上,钩体受重力作用使其弧形端部插入到条形槽内,提拉杆和钩体都拉力处于锁紧状态而实现自锁。
Self-locking hook
一种自锁挂钩
2020-09-18
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Self-locking hook for cable replacement construction and operation method of self-locking hook
European Patent Office | 2022
|Lifting hook self-locking device and lifting appliance comprising lifting hook self-locking device
European Patent Office | 2023
|