The invention belongs to the technical field of elevators, and particularly relates to safety tongs and an elevator. The safety tongs comprise a tongs body and a sliding wedge block installed on the tongs body and further comprise a lifting plate, and the lifting plate lifts the sliding wedge block through a linkage pin. The lifting plate is provided with a stroke groove extending in the direction of lifting the sliding wedge block, and the linkage pin can move along the stroke groove. According to the safety tongs and the elevator, when the lifting mechanism is excessively limited within a certain amount or limited within a certain amount in advance, the sliding wedge block and the linkage pin can still rapidly ascend by a certain stroke in the stroke groove of the lifting plate, and the sliding wedge block reaches the designed stroke. In addition, when the stroke difference of the sliding wedge blocks of the left safety clamp and the right safety clamp of the elevator is too large or the sliding wedge blocks do not synchronously act within a certain amount, the sliding wedge blocks and the linkage pin can rapidly ascend by a certain stroke in the stroke groove of the lifting plate, and the probability that the two safety clamps are not synchronous is reduced.
本发明属于电梯技术领域,具体涉及一种安全钳及电梯。其中,安全钳,包括钳体和安装于钳体的滑动楔块,还包括提拉板,提拉板通过联动销提拉滑动楔块;提拉板具有沿提拉滑动楔块的方向延伸的行程槽,所述联动销能沿行程槽活动。本发明的安全钳及电梯,在提拉机构被过度或提前限位一定量之内时,滑动楔块和联动销仍然可以在提拉板的行程槽中快速上升一定行程,使得滑动楔块达到设计行程。另外,当电梯的左、右两个安全钳的滑动楔块行程差距过大或不同步动作一定量之内时,滑动楔块和联动销可以在提拉板的行程槽中快速上升一定行程,降低两个安全钳不同步的概率。
Safety tongs and elevator
一种安全钳及电梯
2022-05-06
Patent
Electronic Resource
Chinese
Wedge block for elevator safety tongs, preparation method and elevator safety tongs
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