The invention discloses a pair of cranked lever anti-failure elevator safety tongs and an elevator with the same. The pair of cranked lever anti-failure elevator safety tongs comprises a lifting rod,a main tongs body and an auxiliary tongs body, wherein a main accommodating groove is formed in a main wedge block, an opening of the main accommodating groove faces a guide rail, a roller is arrangedin the main accommodating groove, a first guide hole through which the main accommodating groove communicates with an auxiliary wedge block corresponding to the main accommodating groove in the vertical direction is further formed in the main wedge block, a crank lever driven by the roller to rotate is further arranged in the main accommodating groove, the crank lever is rotationally connected with a rocker, a second guide hole is formed in the bottom of the auxiliary wedge block corresponding to the main wedge block, the top of an ejector rod is arranged in the second guide hole, the bottomof the ejector rod is rotatably connected with the top of the rocker, and the lifting of the ejector rod is controlled by the rotation of the crank lever. The cranked lever anti-failure elevator safety tongs have the advantages that the auxiliary tongs body can play a braking effect when the main tongs body fails, so that the safety coefficient is improved. Compared with an ordinary elevator, by adoption of the structure, the elevator has double guarantees when the elevator fails, and the safety of an elevator car is ensured.
本发明公开了一种曲杆式防失效电梯安全钳,包括提拉杆、主钳体和副钳体,主楔块内开有主容纳槽,主容纳槽开口朝向导轨,主容纳槽内设有滚轮,主楔块还开有使主容纳槽与竖直方向对应的副楔块相通的第一导向孔,主容纳槽内还设有由滚轮驱动旋转的曲柄,曲柄转动连接摇杆,与主楔块对应的副楔块的底部开有第二导向孔,第二导向孔内设有顶杆的顶部,顶杆的底部与摇杆的顶部转动连接,由曲柄的旋转控制顶杆的升降。一种电梯,采用上述一种曲杆式防失效电梯安全钳。本发明的优点是:能在主钳体失效的时候副钳体发挥制动效果,提高安全系数。电梯采用上述结构后,相对于普通电梯在失效时有了双重保障,确保轿厢安全。
Cranked lever anti-failure elevator safety tongs and elevator
一种曲杆式防失效电梯安全钳及电梯
2020-10-16
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
European Patent Office | 2024
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