The invention discloses a pair of bidirectional safety tongs for an elevator. The bidirectional safety tongs comprise a safety tongs frame, a bolt assembly, a tongs body assembly and a lifting rod, the clamp body assembly is connected to the safety clamp frame through the bolt assembly. The clamp body assembly comprises a U-shaped spring, a ball assembly, a ball back plate, a wedge block assembly and a mounting plate; the mounting plate is fixed on the ball back plate, and the ball back plate is pressed on the U-shaped spring through the bolt assembly; the wedge block assembly comprises an upper wedge block and a lower wedge block; an upper inclined surface and a lower inclined surface are arranged on one side of a ball of the ball back plate, an upper clamping groove consistent with the inclined direction of the upper inclined surface is formed in the upper part of the mounting plate, and a first lower clamping groove consistent with the inclined direction of the lower inclined surface and a second lower clamping groove consistent with the inclined direction of the upper inclined surface are formed in the lower part of the mounting plate; the back of the upper wedge block leans against the upper inclined surface and can move up and down along the upper clamping groove; the inclination angle of the upper clamping groove enables the two opposite upper wedge blocks to get close to each other when moving upwards and get away from each other when moving downwards.
本发明公开了一种电梯双向安全钳,包括安全钳框架、螺栓组件、钳体组件和提拉杆;所述钳体组件通过螺栓组件连接在安全钳框架上;所述钳体组件包括U型弹簧、滚珠组件、滚珠背板、楔块组件和安装板;所述安装板固定在滚珠背板上,所述滚珠背板通过螺栓组件压紧在U型弹簧上;所述楔块组件包括上楔块和下楔块;所述滚珠背板的滚珠一侧具有上斜面和下斜面,所述安装板上部上具有与上斜面倾斜方向一致的上卡槽,所述安装板下部具有与下斜面倾斜方向一致的第一下卡槽和与上斜面倾斜方向一致的第二下卡槽;所述上楔块背部倚靠上斜面,可沿上卡槽上下移动;上卡槽的倾斜角使得相对两块上楔块,向上移动时互相靠近,向下移动时互相远离。
Bidirectional safety tongs for elevator
电梯双向安全钳
2025-02-25
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
Bidirectional safety tongs for elevator and elevator device
European Patent Office | 2021
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