Steel double-layer fireproof rolling shutter door structure capable of being rapidly lifted

Abstract

The invention discloses a steel double-layer fireproof rolling shutter door structure capable of being rapidly lifted, and relates to the technical field of rolling shutter doors, in particular to the steel double-layer fireproof rolling shutter door structure capable of being rapidly lifted. A connecting column is fixedly sleeved with an inner cavity of the first bearing, a rotating disc is fixedly connected to the inner side of the connecting column, and a limiting groove is formed in the inner side of the rotating disc. According to the steel double-layer fireproof rolling shutter door structure capable of being rapidly lifted, connecting columns are installed on the outer sides of movable electromagnets, the movable electromagnets are arranged in inner cavities of fixing grooves, permanent magnets are installed on the inner walls of the fixing grooves, and the movable electromagnets are located on the inner sides of the connecting columns; and during use, the stainless steel fireproof sleeve and the roller shutter door are conveniently driven to move up and down through the movable electromagnet, so that the roller shutter door is quickly rolled, the working speed of the device is increased, the working stability of the device is improved, and the roller shutter door is prevented from sliding.

Description

technical field [0001] The invention relates to the technical field of rolling doors, in particular to a fast-lifting steel double-layer fireproof rolling door structure. Background technique [0002] Rolling shutter doors are connected in series by multi-joint movable doors. In a fixed slideway, the upper and lower doors are rotated around the reel above the door. Rolling shutter doors are usually widely used in shops. Rolling shutter doors play the same role as walls for horizontal separation. It consists of curtain panels, seat panels, guide rails, supports, reels, boxes, control boxes, door rollers, stoppers, lintels, manual quick release switch devices, button switches and safety devices, etc., and is generally installed on It is inconvenient to use the parts separated by walls. The door body of the rolling shutter door is made of high-quality stainless steel and other materials. It adopts the principle of parallelogram to transfer, flexible expansion and contraction. ...

AI Technical Summary

Problems solved by technology

[0003] During the use of existing rolling doors, motors, transmission gears and transmission chains are usually used to control the up and down retraction of the rolling doors. The motor-controlled rolling doors have the disadvantages of slow speed and unstable operation during use. If the transmission chain is skewed and falls off due to external force, it will affect the safe use of the device, and the fireproof effect of the rolling shutter door is not good in case of fire

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