doors and windows are the key enclosure and isolation structures in buildings, and different places have different design performance requirements.
1. Structure of doors and windows
1. Classification according to the opening mode of doors and windows
(1) Open doors and windows horizontally: the door and window sash opens inward or outward.
(2) sliding doors and windows: the doors and windows are opened and closed by lateral movement.
(3) folding door: the doors can be folded together when opened.
(4) rotating doors and windows: doors and windows are opened and closed in a rotating way. Rotating windows include upper hanging windows, lower hanging windows, middle hanging windows and vertical rotating windows.
(5) spring door: a door with spring hinges will automatically close after opening.
(6) Other doors: including rolling doors, lifting doors, upturned doors, etc.
2. According to the door and window materials, it can be divided into: wooden doors and windows, plastic doors and windows, aluminum alloy doors and windows, steel doors and windows, glass fiber reinforced plastic doors and windows, reinforced concrete, etc.
3. According to the functions of doors and windows, it can be divided into shutter doors and windows, thermal insulation door, fire doors and sound insulation doors.
4. according to the position of doors and windows: doors are divided into external doors and internal doors. Windows are divided into side windows (located on internal and external walls) and skylights.
second, the structure of the door leaf
1. Panel door: The door leaf consists of a skeleton and a door core. Defender core board can be wood board, plywood, hardboard, plastic board, glass, etc. When the door core is glass, it is a glass door. When the door core is gauze or louver, it is a gauze door or louver door. It is also possible to partially use glass, yarn or louvers as required, such as the combination of upper glass and lower louvers.
2. Sandwich door: a door with a light skeleton in the middle and sheets such as plywood and fiberboard stuck on both sides. Generally, it is an indoor door.
3. Spliced door: a door made of wooden boards. Strong and durable, mostly for the door.