The telescopic door is mainly composed of door body, driver and control system. The door body is made of high-quality stainless steel and aluminum alloy special profiles, hinged by parallelogram principle, flexible expansion and large travel. The drive is driven by special motor, worm gear is decelerated, and equipped with automatic clutch or manual clutch, which can be opened and closed automatically in case of power failure of automatic clutch, and can be opened and closed manually in case of power failure of manual clutch. The control system has control board, button switch and wireless remote control device according to user's demand. It can be equipped with a rolling display screen to display 500 words. It can also be equipped with intelligent infrared double probe anti-collision device, which can automatically return to operation in case of people or foreign matters, so as to ensure the safety of vehicles and pedestrians

Main structure and working principle of electric telescopic door