The invention provides a roller guide shoe type device for preventing an elevator car from accidentally moving, and belongs to the technical field of elevators. The roller guide shoe type device for preventing the elevator car from accidentally moving comprises a fixing base, a left roller, a right roller and a middle roller, the left roller and the right roller are arranged in a bilateral symmetry mode and connected to the fixing base through a spring swing mechanism respectively, and the middle roller is located on the perpendicular bisector of the connecting line between the left roller and the right roller. The wheel bodies of the left roller and the right roller are provided with sliding grooves penetrating through the centers, wheel shafts are slidably connected into the sliding grooves, a shifting mechanism is further fixedly connected to the fixing base, and when the lift car displacement detection unit detects that the lift car accidentally moves, a shifting block shifts the wheel shafts of the left roller and the right roller which are symmetrically arranged, so that the left roller and the right roller are converted into cam structures. When the lift car moves, a good clamping and braking effect can be achieved, the structure is simple and compact, and the braking effect is good.
本发明提供了一种滚轮导靴式防止电梯轿厢意外移动装置,属于电梯技术领域。本滚轮导靴式防止电梯轿厢意外移动装置,包括固定座、左滚轮、右滚轮和中间滚轮,左滚轮和右滚轮左右对称设置,且左滚轮和右滚轮各自通过一组弹簧摆动机构连接在固定座上,中间滚轮位于左滚轮和右滚轮之间连线的中垂线上,左滚轮和右滚轮的轮体均具有穿过中心的滑槽,滑槽内滑动连接有轮轴,固定座上还固连有拨动机构,当轿厢位移检测单元检测到轿厢意外移动时,拨动块拨动对称设置的左滚轮和右滚轮的轮轴,使得左滚轮和右滚轮转变成凸轮结构,在轿厢移动时,能够起到良好的夹持制动作用,结构简单紧凑,制动效果好。
Roller guide shoe type device for preventing elevator car from accidentally moving
一种滚轮导靴式防止电梯轿厢意外移动装置
2023-01-31
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
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