1. Basic composition
Folding door Mainly by door Frame, door leaf Transmission components , rotating arm parts, transmission rod, directional device, etc. The door type can be installed indoors and outdoors. Each door has four leaves, two side leaves and two middle leaves. Between the frame on one side of the side door leaf and the middle door leaf Hinge Connect, the upper and lower ends of the stiles on the other side of the side door leaf are respectively equipped with upper and lower rotating shafts, which are connected with the upper and lower rotating shaft seats of the door frames on both sides of the door opening. The side door stiles will rotate around the side stiles, and drive the middle door leaf to rotate to 90 ° together, so as to open and close the door leaf. When the power is turned on, the upper rotating shaft end is installed with rotating arm parts, transmission parts, and the upper middle of the door frame is installed with transmission parts and door opener; A directional device is arranged on the middle door leaf. After the door opener operates, it drives two gears of each transmission part to rotate, and makes linear movement with the two toothed racks. The other end of the rack is connected with the rotary arm, and the rotary arm makes circular movement. The side door frame rotates around the side stiles, and electrically opens the door leaf. The middle sealing joints of the two middle door leaves are equipped with safety protection devices, which will return to the fully open state when encountering obstacles when closing, which is safe and reliable.
2. Specifications
Generally, the width and height of the door opening are 300-480CM and 300-480CM respectively. There are 26 specifications, both electric and manual. Other larger specifications, such as 15 m wide and 7 m high hangar doors, can be designed and customized as required. Multiple door leaves can be designed and manufactured.
3. Door leaf material and production
three point one door plank The metal sandwich board with polyurethane or polystyrene foam board as the core material, the outer frame is cold rolled channel steel, the surface is sprayed with plastic or aluminum alloy extruded profiles, and riveted to the sandwich board.
3.2 The periphery of the outer frame is connected with the outer frame by special angle connectors and bolts.
3.3 The door frame material is 80 × 60 × 4 welded rectangular steel pipe.
3.4 Multiple door leaves can be designed and manufactured.
Function description ：
Folding door is a door whose leaf can be folded. When the door is fully opened, the leaf is folded and arranged on one side or both sides of the door opening. Because the revolving radius of the folding door body is small, the front and rear space with the door opening as the center can be fully utilized after the door is opened, so the folding door can be applied to building corridors, industrial plants, warehouses, and other places requiring large effective width.
