Shear type fireproof door lifting mechanism

Abstract

The invention discloses a shear type fireproof door lifting mechanism. The shear type fireproof door lifting mechanism comprises two inorganic cloth folding cabins, a double-row track and a shear typelifting mechanism, inorganic fireproof cloth is mounted in the inorganic cloth folding cabins, and sliding strips matched with the double-row track are separately mounted on two sides of the inorganic cloth. The shear type lifting mechanism comprises a shear type lifting frame, sliding blocks matched with the double-row track are fixedly mounted at two ends of a lifting plate, the water outlet end of a water tank communicates with a spraying rod through a pipeline, a plurality of spraying heads are fixedly mounted on the spraying rod, and the spraying rod is mounted on the inner side of the inorganic fireproof cloth. According to the shear type fireproof door lifting mechanism, a screw rod motor is mounted on the lifting plate, the difficulty in maintenance is reduced, the lifting mechanism provides a supporting framework for the inorganic fireproof cloth, spray water is sprayed to a middle area of the two inorganic fireproof cloth, the fireproof cloth is cooled sufficiently, invalidation caused by being damaged under the high temperature is prevented, and sufficient isolation of a fire area is guaranteed.

Description

technical field [0001] The invention relates to the technical field of lifting fire doors, in particular to a scissor fire door lifting mechanism. Background technique [0002] In the prior art, the application number is "CN201510600775.7", which is a special grade fire shutter, including outer curtain, inner curtain, winding device, automatic control device and guide rail; the winding device includes a first reel, a second reel and the rolling door machine; the first reel and the second reel are simultaneously controlled and driven by the rolling door machine; each cord is provided with a plurality of wire ropes in the longitudinal direction; the top of the wire rope is connected to the corresponding reel, and the bottom of the wire rope is fixed on the bottom plate; A curtain transverse compartment is provided with a splint, and the end of the splint is slidably placed in the guide rail; the automatic control device includes a control box, a temperature sensor, and a smoke...

AI Technical Summary

Problems solved by technology

[0003] However, there are still obvious defects in the use of the above-mentioned special-grade fire shutter: 1. The drive motor of the above-mentioned device is fixedly installed above the fire-proof shutter door, and it is troublesome to repair and maintain in the later stage; 2. The above-mentioned device adopts a roll-type lift method, the lifting method makes the fire door not have an effective skeleton to support when it is closed, and it is very easy to be damaged in the event of explosion at the fire scene, thus losing the effect of fire isolation; Fire extinguishing, this kind of fire extinguishing method has a little blindness, and it is easy to cause waste of water resources

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