Architectural experts believe that evaluating whether a building is energy-saving depends on whether it saves resources to the greatest extent in the entire life cycle of the building, including energy saving, land saving, water saving, and material saving, whether it protects the environment and reduces pollution, and whether It provides people with healthy and efficient use of space, whether it is a building that harmoniously coexists with nature.

Therefore, architectural experts need to study the problems in various fields. As the outer protective structure of the building, the energy-saving performance of doors and windows directly affects the energy-saving of buildings, and the hardware of doors and windows, as accessories of doors and windows, when providing supporting structures for doors and windows, it The quality of doors and windows directly affects the energy-saving effect of doors and windows. Therefore, high-quality door and window hardware plays an important role in building energy-saving.

However, incidents caused by poor quality windows have frequently occurred over the past few decades. For example, the glass of the floor-to-ceiling windows in a small area of a city burst into a spider web shape and tilted out of the room, forming a large irregular hole in the middle of the window, and a few pieces of glass would fall off with a light touch. Below the window is the main passage of the community, next to a swimming pool. At the time of the incident, many people were still swimming in the pool. Another example is that a plastic-steel glass window of an office building in Shenzhen fell from the sky and hit a pedestrian, Ms. Zhou. Her neck artery was smashed through and she was unconscious on the spot. These tragic cases fully demonstrate that the quality of doors and windows and door and window hardware is very important.

Due to the functional requirements of the building, the structural form, the space size, the design style of the building facade, etc., the doors and windows of the building have various opening forms, such as inner side opening, outer side opening, inner opening and upper hanging, inner opening and lower opening. There are more than ten opening forms such as hanging, and the key to making building doors and windows have various opening forms is the door and window hardware of various structures.

The flexibility of opening and closing doors and windows of buildings, the difficulty of operation, and the magnitude of operating force mainly depend on the structural design of door and window hardware, material selection, processing and manufacturing, assembly process and assembly quality. Building doors and windows must be able to be opened and closed to achieve functions such as ventilation, ventilation, heat preservation, heat insulation, sound insulation, and wind and rain protection. Therefore, building doors and windows are required to have wind resistance under certain windy and windy weather conditions. The door and window hardware is the component that realizes the locking function after the doors and windows of the building are closed. For example, when the inner-opening doors and windows are subjected to positive wind pressure and the outward-opening doors and windows are subjected to negative wind pressure, the wind load of the door and window fans is completely transferred to the hardware. The hardware then transfers the wind load to the door and window frame and the building structure. Therefore, the door and window hardware is the main functional component that affects the wind pressure resistance of building doors and windows.