伸缩门（Retractable door），就是门体可以伸缩自由移动，来控制门洞大小、来控制行人或车辆的拦截和放行的一种门。伸缩门主要由门体、驱动电机，滑道、控制系统构成。门体采用优质不锈钢及铝合金专用型材制作，采用平行四边形原理铰接，伸缩灵活行程大。驱动器采用特种电机驱动，蜗杆蜗轮减速，并设有自动离合或手动离合器，自动离合停电时可自动启闭，手动离合停电时可手动启闭，控制系统有控制板，按钮开关，另可根据需求配备无线遥控装置。
Telescopic door (Retractable door), is the door body can move freely telescopic, to control the size of the hole, to control the pedestrian or vehicle to intercept and release a door. The telescopic door is mainly composed of the door body, the driving motor, the slideway and the control system. The door body is made of high quality stainless steel and aluminum alloy special-purpose profile. It is articulated with parallel quadrilateral principle and flexible and flexible travel. Drive use special motor drive, worm wheel reducer, and is equipped with automatic or manual clutch clutch, the automatic clutch power can be automatically opened and closed, manual clutch power can be manually opened and closed control system, a control board, a button switch, the other based on demand with a wireless remote control device.