The invention relates to a pair of bidirectional safety tongs which comprises a tongs body, the tongs body is provided with a left wedge block installation concave part and a right wedge block installation concave part which are located on the two sides of a guide rail channel respectively and used for installing a left wedge block and a right wedge block respectively, and the bidirectional safety tongs further comprise a left bolt, a left elastic element and a left nut which correspond to the left wedge block, the left elastic element is arranged outside the screw rod part of the left bolt in a sleeving mode and abuts against the position between the screw head part of the left bolt and the clamp body. The screw head part of the left bolt abuts against the left wedge block, and the screw rod part of the left bolt penetrates through the plier body and is installed on the plier body through a left nut; a right bolt, a right elastic element and a right nut are arranged corresponding to the right wedge block, and the right elastic element is arranged outside the screw rod part of the right bolt in a sleeving mode and abuts against the position between the screw head part of the right bolt and the clamp body; the screw head portion of the right bolt abuts against the right wedge block, and the screw rod portion of the right bolt penetrates to the position below the clamp body and is installed on the clamp body through a right nut. According to the bidirectional safety tongs, bidirectional lifting braking is achieved, the structure is simple, and the manufacturing cost is low.
本发明涉及一种双向安全钳,包括钳体,钳体具有分别位于导轨通道两侧的左楔块安装凹部和右楔块安装凹部,以分别用于安装左楔块和右楔块,所述双向安全钳还包括:对应于左楔块设有左螺栓、左弹性元件和左螺母,左弹性元件套设于左螺栓的螺杆部之外,并抵靠于左螺栓的螺头部与钳体之间;左螺栓的螺头部抵靠于左楔块,左螺栓的螺杆部贯穿至钳体之上并通过左螺母安装于钳体;对应于右楔块设有右螺栓、右弹性元件和右螺母,右弹性元件套设于右螺栓的螺杆部之外,并抵靠于右螺栓的螺头部与钳体之间;右螺栓的螺头部抵靠于右楔块,右螺栓的螺杆部贯穿至钳体之下并通过右螺母安装于钳体。本发明的双向安全钳,实现双向提拉制动,结构简单,制造成本低。
Bidirectional safety tongs
一种双向安全钳
2023-02-03
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
Bidirectional safety tongs for elevator and elevator device
European Patent Office | 2021
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