Pull-up ladder stand

Abstract

The invention discloses a pull-up ladder stand. The pull-up ladder stand comprises a ladder stand main body, at least one pair of connecting mechanisms and one or more first locking mechanisms, wherein at least one pair of the connecting mechanisms are arranged at two sides of the ladder stand main body and the one or more first locking mechanisms are arranged at the two sides of the ladder stand main body. One end of each one of the connecting mechanisms is rotatingly connected to the ladder stand main body, and the other end of the one is rotatingly connected to a well wall. One end of each one of the first locking mechanisms is fixedly connected to the well wall, and the other end of the one is snapped onto the corresponding connecting mechanism or is in a free state. The pull-up ladder stand can be installed in an elevator well having a small size, can be unfolded and folded by simple processes, and has good safety.

Description

technical field [0001] The invention relates to a climbing ladder, in particular to a pull-type climbing ladder installed in an elevator shaft for safe entry and exit into pits. Background technique [0002] The pit climbing device of the elevator is a special device for workers to enter and exit the pit safely. For elevators with machine rooms and some elevators with large wells, the ladder is generally installed on the side of the well to improve the operator's ability to enter and exit the well. safety. [0003] But, according to the current competitive trend of the elevator market, the size of the elevator shaft is required to be as small as possible, so that the arrangement of the elevator components in the shaft is as compact as possible, so some shafts are small in size and vertical elevators that cannot be installed with side ladders (such as Machine-room-less elevators, because the side ladder will interfere with the shaft parts), the pit ladder can only be fixedly...

AI Technical Summary

Problems solved by technology

[0003] But, according to the current competitive trend of the elevator market, the size of the elevator shaft is required to be as small as possible, so that the arrangement of the elevator components in the shaft is as compact as possible, so some shafts are small in size and vertical elevators that cannot be installed with side ladders (such as Machine-room-less elevators, because the side ladder will interfere with the shaft parts), the pit ladder can only be fixedly installed directly under the sill of the hall door on the first floor; but since the ladder cannot exceed the sill, the distance from the sill to the well wall is about 85mm, when the operator enters the pit, the distance from the ladder pedal to the well wall is very small, which is prone to the danger of people slipping into the pit and being injured

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