Fireproof window structure with steel sub frame

Abstract

The invention discloses a fireproof window structure with a steel sub frame. The structure is characterized by comprising a window frame, a sash and a sub frame arranged in a door and window opening,wherein the window frame is connected with the sub frame, the sash is connected with the window frame, a hinge is arranged between the top of the window frame and the top of the sash, and a hidden window closing device is arranged between the side edge of the window frame and the side edge of the sash; frames are formed by bending steel, the hidden window closing device comprises a telescopic arm,one end of the telescopic arm is connected with a cylinder body, the other end of the telescopic arm is connected with a triggering device, the cylinder body is embedded in a side sectional materialof the sash, and the triggering device is embedded in the inner side sectional material of the window frame; and the triggering device works when being burned by a tongue of flame or at a high temperature. The fireproof window structure with the steel sub frame has the advantages that the expansion coefficients and heat conductivity coefficients are lower, the installation strength is high, the requirements of high-performance buildings can be effectively met, and a window can be closed in time when the tongue of flame spreads, thereby obstructing the spread of fire and reducing property loss.

Description

technical field [0001] The invention relates to the field of fireproof windows, in particular to a fireproof window structure with a steel sub-frame. Background technique [0002] A fire-resistant window is a window that, together with its frame, can meet the fire-resistant integrity requirements within a certain period of time. The national standard GB50016-2014 "Code for Fire Protection Design of Buildings" stipulates that for residential buildings with a building height greater than 54 meters, each household should have a room with openable external windows, and the fire-resistant integrity of the external windows should not be less than 1 hour. [0003] When a fire occurs in the exterior windows of existing buildings, the windows will not be closed automatically, so the flames will spread to the outside or into the house, resulting in greater property damage, especially for exterior windows of some overhanging structures , it has a window opening angle locking mechanism...

AI Technical Summary

Problems solved by technology

[0003] When a fire occurs in the exterior windows of existing buildings, the windows will not be closed automatically, so the flames will spread to the outside or into the house, resulting in greater property damage, especially for exterior windows of some overhanging structures , it has a window opening angle locking mechanism. After opening, it needs to push the window again to achieve the effect of closing the window. Therefore, it cannot be closed automatically, and the effect of blocking flames cannot be met, and the outer window without a steel sub-frame is installed. The accuracy is not high, and the error between the wall opening and the window frame is relatively large; when the whole window is in use, there are characteristics such as unstable fire performance, which does not meet the fire protection requirements of building materials

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