折叠门主要由门框、门扇、传动部件、转臂部件、传动杆、定向装置等组成。该门型均可安装于室内和室外。每樘门有四个门扇，边门扇、中门扇各两扇。边门扇一边的边框与中门扇之间由铰链连接，边门扇另一边门梃上下端分别装有上下转轴，转轴与门洞两边门框上下转轴座相连接，边门梃将绕着一边梃旋转，同时带动中门扇一起旋转至90°，从而钢制闸门 钢坝 保定轻钢别墅 保定平面设计培训 保定室内设计培训 保定办公家具使门扇开启和关闭，电动时，上转轴端安装转臂部件、传动部件，门框上部中间安装传动部件和开门机；中门扇上设有定向装置。开门机运转后带动传动部件每部的两个齿轮旋转，与其齿合的两个齿条作直线运动，齿条的另一端与转臂连接，转臂作圆周运动，边门框即绕着一边梃旋转，电动开启门扇。两中门扇的中密缝均装有安全保护装置，关闭时遇有障碍物即回到全开启状态，安全可靠。
Folding door is mainly composed of door frame, door leaf, transmission parts, rotating arm parts, transmission rod, directional device, etc. The door type can be installed indoor and outdoor. Each door has four leaves, two side leaves and two middle leaves. The frame on one side of the side door leaf is connected with the middle door leaf by hinge. The upper and lower ends of the stile on the other side of the side door leaf are respectively equipped with upper and lower rotating shafts. The rotating shaft is connected with the upper and lower rotating shaft seats of the door frames on both sides of the door opening. The side stile will rotate around one side stile and drive the middle door leaf to rotate to 90 ° together to open and close the door leaf The middle part of the upper part of the frame is equipped with a transmission part and a door opening machine; the middle door leaf is provided with a directional device. After the door opener is in operation, it drives two gears of each part of the transmission part to rotate, and the two gears meshed with it move in a straight line. The other end of the rack is connected with the rotating arm, and the rotating arm makes circular motion. The side door frame rotates around one side stile to open the door leaf electrically. Safety protection device is installed in the middle sealing seam of the two middle door leaves. When closing, it will return to the full open state in case of obstacles, which is safe and reliable