Otis Elevator Company

QingXi Cai

Xiaobo Zhang

Jianguo Li

Denghui Zhang

Sihua Ling

Shunqiang Zhou

Lilong Shi

Chong Chen

XiaoXiao Dong

Hua Zhang

Jun Ma

Lifei Cheng

JianGuo Li

Xin Wei

Jie Hu

Junfeng Wu

ZuAn Tang

Yongtao Yang

Huanfeng Liu

Minchao Chen

Senyuan Qiao

Zuan Tang

Escalator smart traffic flow lighting device

An automatic handrail tensioning system and a method for adjusting the tension degree of a handrail, and belongs to the technical field of escalators. The automatic handrail tensioning system of the present invention comprises: a sensor for detecting information that can reflect a tension degree of the handrail; a controller for determining the tension degree information of the handrail according to the information detected by the sensor, and generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information; and an actuator for driving a tensioning device to adjust the tension degree of the handrail based on the control instruction.

Handrail automatically tensioning system and a method for adjusting tension level of handrail

A synchronous door knife includes a track frame and a bottom plate, the back of the bottom plate is hinged with a stop arm, a transmission arm and a lock plate, a front end of the stop arm is provided with a guide wheel, upper and lower portions of the front of the bottom plate are respectively hinged with rotating arms, the upper rotating arm is linked with the transmission arm through a draw bar, one end of the rotating arms is hinged with a first blade, the other end is hinged with a movable plate, the movable plate is hinged with unlock rotating arms, one end of the unlock rotating arms is hinged with a second blade, and the other end abuts against the lock plate.

Elevator synchronous door knife

The present invention relates to a landing-door door lock device. The following problem is solved: the position of a lock ball of a general landing-door door lock device is not adjustable, and adjustment is complicated when there is a deviation between positions of the lock ball and a door knife. The device includes a primary lock and a secondary lock, the primary lock includes a bottom plate and a locking arm, a counter weight is mounted on the locking arm, a moving ball is fixed onto the counter weight, a fixed ball is mounted on the bottom plate, the secondary lock includes a buckle plate, the locking arm is connected onto the bottom plate through a rotary shaft, an arc-shaped hole is opened on the counter weight, a shaft sleeve is sheathed on a shaft of the fixed ball, the shaft sleeve penetrates into the arc-shaped hole, a front end of the buckle plate is provided with a first lock hook, the locking arm is correspondingly provided thereon with a lock column, and the first lock hook is buckled on the lock column. The present invention has the following advantages: the rotary shaft and the fixed ball are disposed separately, the positions of the fixed ball and the moving ball can be adjusted left and right, when there is a deviation between positions of the lock ball and the door knife of the landing-door door lock device on different floors, it is not necessary to adjust the position of the door lock of the whole floor, so adjustment is simple, and a problem of poor contact occurring in electrical contacts on the door lock is also avoided.

Landing-door door lock device

An asynchronous door knife comprises a track rack and a base plate; a dynamic blade and an unlocking blade which are connected on the front of the base plate in a swinging manner; a knife lifting ball which is arranged on the dynamic blade; a lock hook which is arranged on the back of the base plate and correspondingly buckled with a latch, wherein the unlocking blade is connected on the base plate through a lifting plate; the lifting plate is hinged on the base plate and comprises a first swing arm and a second swing arm; the first swing arm is hinged with the unlocking blade; the second swing arm is connected with an unlocking connecting rod; a lifting hole is additionally formed on the base plate; the middle of the lock hook is hinged with the unlocking connecting rod through the lifting hole.

Asynchronous door knife of elevator integrated car door lock

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Hangzhou, China

QingXi Cai