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。
Retractable door is a kind of door which can move freely and flexibly to control the size of the door and the interception and release of pedestrians or vehicles. The telescopic door is mainly composed of a door body, a driving motor, a slideway and a control system.
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。
The door body is made of high quality stainless steel and aluminium alloy profiles. It is articulated by the principle of parallelogram. It has flexible expansion and large travel. Drivers are driven by special motors, worm and worm gears are decelerated, and there are automatic clutches or manual clutches. When automatic clutches are cut off, automatic clutches can be opened and closed automatically. When manual clutches are cut off, manual clutches can be opened and closed. The control system has control panels and button switches. In addition, wireless remote control devices can be equipped according to requirements.
可配备滚动显示屏，显示300-500字的显示内容。还可配备智能红外线探头防碰撞装置，遇人或异物20-30CM可自动返回运行，从而保障车辆及行人的安全。
It can be equipped with a rolling display screen to display 300-500 words of display content. Intelligent infrared probe anti-collision device can also be equipped. 20-30CM can automatically return to operation when meeting people or foreign bodies, thus ensuring the safety of vehicles and pedestrians.