The invention discloses a safety tongs additional propelling device for preventing an elevator from falling and relates to the field of elevator safety tongs. The safety tongs additional propelling device comprises a supporting frame and a guide rail, supporting plates are arranged on the left portion and the right portion of the supporting frame respectively, a tongs block is arranged on the side, close to the guide rail, of each supporting plate, and grooves are formed in the inclined face of the inner side of each tongs block at equal intervals. A clamping block is embedded in the groove, a spring is fixed to the end, located in the groove, of the clamping block, the other end of the spring is connected with the inner wall of the groove, a wedge block is arranged between a clamp block and the guide rail, and containing grooves are formed in the inclined face of the outer side of the wedge block at equal intervals. The grooves are formed in the clamp block at equal intervals, the clamping blocks are embedded in the grooves, and when the wedge blocks clamp the guide rail, the clamping blocks on the clamp block extend into the containing grooves in the wedge blocks under the elastic force action of springs, so that the wedge blocks are locked, the wedge blocks are difficult to move downwards, the wedge blocks are prevented from moving downwards and loosening, and the clamping effect on the guide rail is improved.
本发明公开了一种防止电梯坠落的安全钳追加推进装置,涉及电梯安全钳领域,包括包括支撑框架和导轨,所述支撑框架的左右两部均设置有支撑板,所述支撑板靠近导轨的一侧设置有钳块,所述钳块的内侧斜面等间距开设有凹槽,所述凹槽的内部嵌套有卡块,所述卡块位于凹槽内的一端固定有弹簧,所述弹簧的另一端与凹槽的内壁连接,所述钳块与导轨之间设置有楔块,所述楔块的外侧斜面等间距开设有容纳槽。本发明通过在钳块上等间距开设有凹槽,凹槽内嵌套有卡块,楔块对导轨进行夹紧时,钳块上的卡块在弹簧弹力作用下伸入楔块上的容纳槽内,从而对楔块进行锁定,使得楔块难以下移,避免楔块下移松动,提高了对导轨的夹紧效果。
Safety tongs additional propelling device for preventing elevator from falling
一种防止电梯坠落的安全钳追加推进装置
2021-12-31
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
Direct-drive elevator safety tongs anti-falling device and anti-falling method thereof
European Patent Office | 2023
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