Multi-cavity section bar plastic-steel door/window

Abstract

The invention relates to a multi-cavity section bar plastic-steel door / window. A frame is provided with a first transverse arm and a vertical arm. A first main insulation cavity is reserved in the first transverse arm of the frame. A first auxiliary cavity and a third auxiliary cavity are also reserved on the indoor side of the first insulation cavity. A second auxiliary cavity and a fourth auxiliary cavity are reserved closest to the indoor side of the first transverse arm. A fifth auxiliary cavity, a sixth auxiliary cavity and a seventh auxiliary cavity are reserved in the vertical arm of the frame. A steel liner is disposed in the first main insulation cavity inside the frame. A leaf is provided with a second transverse arm, an outdoor side vertical arm and an indoor side vertical arm. A second main insulation cavity is reserved in the second transverse arm of the leaf. An eighth auxiliary cavity is reserved on the outdoor side of the second main insulation cavity. A ninth auxiliary cavity and a tenth auxiliary cavity are reserved in the outdoor side vertical arm. An eleventh auxiliary cavity, a twelfth auxiliary cavity and a thirteenth auxiliary cavity are reserved in the indoor side vertical arm. A steel liner is disposed in the second main insulation cavity inside the leaf. The multi-cavity structure effectively enhances tightness of the door / window and makes the door / window better in thermal insulation.

Description

technical field [0001] The invention relates to a door and window of a building, in particular to a multi-cavity plastic-steel door and window. technical background [0002] Energy saving is a global issue, and it is also an important basic national policy of our country. There will be great achievements in the field of building energy conservation in the next ten years, and new energy-saving technologies for doors and windows will become the focus of building energy conservation. At present, PVC doors and windows on the market have good thermal insulation properties. However, due to the rapid aging of PVC plastic itself, its rigidity and wind pressure resistance need to be improved under the action of external forces. Directly installing multiple thermal insulation chambers will make it more fragile. The aluminum alloy doors and windows have the characteristics of strong corrosion resistance, not easy to fall off, and do not affect the facade decoration. They are also very ...

AI Technical Summary

Problems solved by technology

At present, PVC doors and windows on the market have good thermal insulation performance. However, due to the rapid aging of PVC plastic itself, its rigidity and wind pressure resistance need to be improved under the action of external forces. Directly setting multiple thermal insulation chambers will make it more fragile.

The aluminum alloy doors and windows have the characteristics of strong corrosion resistance, not easy to fall off, and do not affect the decoration of the facade. They are also very common in the market, but their heat transfer performance is fast and their heat preservation performance is poor. The heat transfer coefficient of simple aluminum alloy doors and windows is K The value does not reach the lower limit of the national energy saving requirements

Images