Integrated car door lock and door knife device

Abstract

The invention relates to an integrated car door lock and door knife device. The integrated car door lock and door knife device comprises a door knife base plate, a knife arm assembly, a linkage assembly and a lock hook assembly, wherein the knife arm assembly, the linkage assembly and the lock hook assembly are installed on the door knife base plate, the knife arm assembly is used for opening or clamping a door ball, and the linkage assembly is used for matching with the knife arm assembly and the lock hook assembly, so as to lock or unlock. According to the integrated car door lock and door knife device, a car door lock and a door knife are integrated, the structure is smart and reasonable, the manufacturing cost is low, whether a door machine is in a flat unlocking area can be directly judged by utilizing the door ball of a landing door, the flat area can be judged without additionally installing other devices on the landing door, and a certain error of installing the landing door ball is permitted, so that the landing door is conveniently installed and debugged. In addition, in the flat area, the door can be opened inside and outside in any condition; in non-flat and rescue areas, the door opening spacing does not exceed 50 mm inside, and the car door opening requirements in a modification list of a new national standard I are fully satisfied.

Description

technical field [0001] The invention relates to an integrated car door lock knife device used in an elevator door system, and belongs to the technical field of elevator accessories. Background technique [0002] As more and more high-rise buildings are built, elevators are used more and more frequently. However, the safety of elevators has always been a big problem, especially the safety of door systems. [0003] Therefore, the national standard GB7588-2003 "Safety Code for Elevator Manufacturing and Installation" stipulates in 11.2.1: "The horizontal distance between the inner surface of the elevator shaft and the edge of the nearest door of the car sill, car door frame or sliding door should not be greater than 0.15" m. If the car is equipped with mechanically locked doors and can only be opened in the unlocked area of ​​the landing door, except in special cases, the operation of the elevator automatically depends on the locking of the car door, and the locking of the car ...

AI Technical Summary

Problems solved by technology

Some of the existing car door locks cannot open the car door from inside the car without cutting off the power supply of the motor in the leveling area. At the same time, there is also the risk of accidental power failure in the non-leveling area. ; Some car door locks need to install additional devices at the landing door device, which undoubtedly increases the cost and the difficulty of debugging and installation for elevators with relatively high floors

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