Door roller for fire-proof roll screen

Abstract

A door roller for a fire-proof roll screen comprises a motor, wherein a driving wheel is fixedly arranged at one end of a motor output shaft, a brake engaged through electrification is fixedly arranged at the other end of the motor, a motor housing is fixedly connected with a support cylinder, a sleeve tube is fixedly connected to the outside of the support cylinder, the other end of the sleeve tube is fixedly connected with another support cylinder, and the outer end of the support cylinder outward extends to form a fixing shaft in the axial direction. The door roller for the fire-proof roll screen is small in size and light in self weight, can be built in a fire-proof roll screen shaft, can be also arranged outside a reel and occupies an ultra-small installing space. In a fire disaster emergency circumstance or a completely power supply shortage circumstance, manual operation is not needed, the motor automatically rotates and operates due to traction, the roll screen can automatically descend for closing, and the safety efficiency is greatly improved.

Description

technical field [0001] The invention relates to a fireproof rolling shutter device, in particular to a rolling door machine for a fireproof rolling shutter. Background technique [0002] Fire shutter is an indispensable fire protection emergency product facility in construction and other fields to prevent fire and cut off the spread of fire. It has the special functions of high temperature resistance, fire insulation, smoke insulation, long fire resistance time, and suppression of fire spread. It has become the basis for improving public safety. Fire shutter emergency products and services for basic industries are widely used in large spaces of industrial and civil buildings, openings of production lines, ships, subway cars, mining operation tunnel wells, historically protected buildings, open fire and high temperature parts, and underground building floors that are highly affected Emergency facilities for fire separation in restricted public safety areas. [0003] In the p...

AI Technical Summary

Problems solved by technology

[0006] The present invention is applied to the fire-proof rolling shutter products of the building fire-fighting industry, and can effectively solve the problems of large building space occupied by traditional fire-proof rolling door machine materials, large thickness, unsightly appearance, low industrial energy efficiency, and structural energy consumption. In the event of a fire, it will automatically drop to 100% in the event of a complete lack of power supply, and the safety performance will be low.

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