Elevator landing door system

Abstract

The invention discloses an elevator landing door system. The system comprises an elevator car, a sill assembly and two landing door leaves; the sill assembly comprises a sill bracket and a landing door sill; two L-shaped supports are arranged at the bottom of the sill bracket; each landing door leaf is connected with the landing door sill in a sliding mode through a door sliding block, a transmission block is arranged on the side of the door sliding block and connected with a first rack, a transverse lead screw is rotationally connected into the L-shaped support, one end of the transverse lead screw is connected with a first gear meshing with the first rack, a transverse sliding rail is arranged on the L-shaped support, the top of the transverse sliding rail is glidingly connected with a limiting block, and the transverse lead screw is in threaded connection with the limiting block; a second rack is arranged at the top of each limiting block, a shielding plate is connected to the bottom of the sill bracket through a rotating shaft, and second gears meshing with the second rack are arranged at the two ends of the rotating shaft correspondingly; a fixing plate is arranged at the bottom of the elevator car, and inserting holes corresponding to the limiting blocks are formed in the fixing plate. The elevator landing door system can effectively prevent shearing accidents from occurring.

Description

technical field [0001] The invention relates to an elevator landing door system. Background technique [0002] Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. As a means of transportation in the vertical direction, elevators have become important construction equipment in high-rise buildings and public places and are indispensable. However, in practical applications, elevator accidents occur frequently. Among them, there are many accidents of personnel shearing and extrusion caused by the failure of the electrical interlock circuit or the artificial short-circuit of the circuit during maintenance, that is, the upward or downward movement of the elevator car when the landing door is not closed or the elevator car is not completely closed. Therefore, how to provide an elevator landing door system to prevent the occurrence of shearing accidents is an ur...

AI Technical Summary

Problems solved by technology

However, in practical applications, elevator accidents occur frequently

Among them, due to the failure of the electrical interlock circuit or the artificial short-circuit of the circuit during maintenance, the accident of personnel shearing and extrusion, that is, the upward or downward movement of the elevator car when the landing door is not closed or completely closed, has occurred.

Images