Car door synchronous protection device for preventing elevator from accidentally moving

• Main Authors: JIN ZHONGPING, LYU XINCE, CHEN YONGYU, LOU YONGSHENG, WANG DIYU, ZHANG YONG, DONG LINGJUN, ZHANG SHUN, LYU ZHENG
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: ELEVATORS; ESCALATORS OR MOVING WALKWAYS; HAULING; HOISTING; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The invention provides a car door synchronous protection device for preventing an elevator from accidentally moving, and belongs to the technical field of elevators. The car door synchronous protection device for preventing the elevator from accidentally moving comprises a door motor which is arranged at the top of a car and used for driving the car door to be opened and closed, and is characterized in that a worm and gear speed reducer and a brake mechanism are further arranged at the top of the car, and the worm and gear speed reducer is connected with the door motor; the two braking mechanisms are connected to the two elevator guide rails located on the two sides of the lift car correspondingly, and the braking mechanisms are connected with the worm and gear speed reducer through the transmission mechanism. The braking mechanism for braking the car is synchronously controlled by the door motor for driving the car door to be opened and closed, so that when the car door is opened, the whole car is braked on