Classification and structure of doors

 1. Classification of doors:
According to the position of the door in the building: inner door and outer door.
According to the function of the door: general door and special door.
According to the material of the door frame: wooden door, aluminum alloy door, plastic steel door, color panel door, glass steel door, steel door, etc.
According to the opening method of the door leaf: swing door, spring door, sliding door, folding door, revolving door, rolling door, lift door, etc.
2. Door size requirements:
The size of the door refers to the height and width of the door opening, which should meet the requirements for evacuation of people and the transportation of furniture and equipment, and should meet the requirements of the "Building Modulus Coordination Standard".
Under normal circumstances, the height of the door is guaranteed to be no less than 2000 mm. When the upper part is set up, the height should be increased by 300~600mm. The width of the door should be sufficient for one person to pass through, and the necessary clearance should be considered, generally 700~1000mm, usually set as a single door. For the doors of public buildings with a large flow of people, the width should meet the evacuation requirements, and more than two doors can be installed.
The composition of the door:
3. the composition of the door
The door is generally composed of door frames, door leaves, hardware parts and accessories
(1). The door frame is the connecting part of the door and the wall, which is composed of an upper frame, a side frame, a middle horizontal frame and a middle vertical frame.
(2). The door leaf is generally composed of upper, middle and lower risers and side stiles, with the door core board fixed in the middle.
(3). Hardware parts include hinges, bolts, door locks, handles, etc. The accessories include face-sticking board, cheese board, etc.

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