Single-scroll fire shutter

Abstract

The invention provides a single-scroll fireproof shutter. A surface of the fireproof shutter is a flexible single-layered fireproof fabric structure, and the thickness of the surface of the fireproof shutter is smaller than or equal to 3 mm; the upper end of the surface of the fireproof shutter is connected with a scroll while the lower end of the surface of the fireproof shutter is connected with a bottom rod; and the single-scroll fireproof shutter is further provided with a door rolling machine, and the scroll is rotatably connected with the door rolling machine. A motor is arranged in the door rolling machine, a transmission wheel is arranged at one end of an output shaft of the motor, and an electrifying brake is arranged at the other end of the motor; an outer sleeve is fixedly connected with a shell of the motor; and the balance weight of a bottom rod is greater than damping of the motor. The door rolling machine can be placed internally or externally. By the single-scroll fireproof shutter, the shortcomings that a scroll for an existing traditional fireproof shutter is separated from a motor, and the existing traditional fireproof shutter is large in shape and size, heavy in weight, large in thickness, large in occupied mounting space and high in electricity consumption are overcome, and meanwhile, the problems that the existing traditional fireproof shutter occupies large space of a building, is not attractive, is low in industrial energy efficiency and large in structural energy consumption, cannot automatically descend or run completely under the emergency situation that fire breaks out and power is switched off completely, is low in safety efficiency and the like are solved.

Description

technical field [0001] The invention belongs to a fire-proof rolling shutter, in particular to the improvement of its structure. Background technique [0002] At present, the traditional fire-resistant shutter curtain surface used in the building fire protection industry is composed of at least two layers of outer fire-resistant fabrics and an inner layer of heat-insulating sandwich material in the middle; the thickness of the outer layer of fire-resistant fabrics is generally about 6-10mm, and the mass per unit area ≥1500g / m2, with a layer of inner layer insulation sandwich material thickness ≥18mm, bulk density ≥150 kg / m3. Additional load-bearing parts are arranged vertically inside the curtain surface, and reinforced splints are arranged horizontally on the surface, with an interval of ≤400 mm. The fire shutter of this structure has its reel installed separately from the rolling door machine, and the rolling door machine is located outside the reel. The rolling door mac...

AI Technical Summary

Problems solved by technology

Traditional materials are heavy and thick, which leads to large and unsightly building space, low industrial energy efficiency, and large structural energy consumption, which affects the aesthetics of the building and the effective use of space, and the scope of application is limited; moreover, there is a fire emergency. In the case of a complete lack of power supply, the rolling door machine for fire shutters needs to rely on manual operation to make the fire shutters drop and close, not to mention the reality that traditional fire shutters are installed in building spaces with interior decoration environment and aesthetic requirements. More than 99% of the manual zippers of the traditional fire-proof rolling door machine are hidden in the ceiling or inside the shutter box

The safety efficiency of the fire shutter is low, it cannot be 100% automatically lowered to run and unfold, it cannot prevent smoke, and it cannot play the role of complete separation of fire safety and emergency.

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