Bridge cutoff heat insulation fireproof window
A technology for heat insulation of broken bridges and fireproof windows, which is applied to fireproof doors, windows/doors, door/window accessories, etc. It can solve the problems that fireproof windows cannot be closed by themselves, and achieve the effect of improving sound insulation and insulation performance
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[0021] Such as Figure 1-2 As shown, the present invention provides a technical solution: a broken bridge heat insulation fireproof window, comprising an inner window frame 1 and an outer window frame 2, characterized in that: the inner window frame 1 and the outer window frame 2 are passed through nylon PA- 66 3 fixed connection, nylon-PA66 3 is a thermoplastic resin, white solid, density 1.14, melting point 253 ° C, insoluble in general solvents, only soluble in m-cresol, etc., with high mechanical strength and hardness, and great rigidity. Can be used as engineering plastics, the top and bottom of the inner wall of the inner window frame 1 and the outer window frame 2 are fixedly connected with the two ends of the connecting column 4 respectively, and the two sides of the inner wall of the outer window frame 2 are respectively opposite to the two hollow glass sashes 5. Side rotation connection, the front of the opposite side of the hollow glass sash 5 is fixedly connected w...
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