Elevator synchronous door knife device with holding assembly

Abstract

Disclosed is an elevator synchronous door vane device with a retaining assembly, comprising a door vane baseboard (1), a pull device (2), a four-bar linkage mechanism constituted of a driving swing arm (3), a driven swing arm (4), a first door vane (5), a second door vane (6). The elevator synchronous door vane device also comprises a retaining assembly (7). The retaining assembly (7) comprises a first movable rod (70), a second movable rod (71), and a connection shaft (72) connecting the first movable rod (70) and the second movable rod (71). The connection shaft (72) has an overhang end provided with a guide device (73). The retaining assembly (7) also comprises a guide plate engaging to the guide device (73). By adopting the retaining assembly, the elevator synchronous door vane device can simultaneously open or close a car door and a landing door of the elevator, preventing shaking of the elevator door, closing the car door when a malfunction occurs and the elevator stops in a non-gate region, allowing the car door to drive the landing door to be opened when the elevator stops in a gate region, and simplifying the door vane device having a door opening prevention function.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator synchronous door knife device with a holding assembly. Background technique [0002] The elevator door operator system has gone through the development stage of mechanical door operator and frequency conversion door operator, and has developed into a permanent magnet synchronous door operator system. The door knife device in the door machine system of the elevator is installed on the car door of the elevator, and is used to drive the hall door, so as to realize the synchronous opening and closing of the hall door and the car door. [0003] Elevator door knife mechanisms are widely used in elevators, and existing door knife devices have various structures. However, in the prior art, the situation that the hall door and the car door cannot be opened and closed at the same time still occurs, especially during the operation and use of the elevator, many accidents are l...

AI Technical Summary

Problems solved by technology

However, in the prior art, the situation that the hall door and the car door cannot be opened and closed at the same time still occurs, especially during the operation and use of the elevator, many accidents are likely to be caused due to the failure of the elevator equipment itself or unsafe use; In the door area, the occupant is trapped in the car, and the user suddenly opens the door, but the elevator car is not at the landing, often causing serious safety accidents

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