Fire-proof structure of landing door

Abstract

The invention discloses a fire-roof structure of a landing door. According to the fire-proof structure of the landing door, the fire-proof effect is good, the cost is low, and the safety effect is good. The fire-proof structure comprises an elevator landing door and a sill, wherein the landing door is formed by connecting and closing a driven door and a driving door, small door sleeves are installed on the two sides of the landing door, fireproof plates are installed at landing door gaps, the landing door gaps comprise a gap between the driven door and the driving door, a gap between the upperpart of a door plate and an upper small door sleeve, a gap between the side surface of the door plate and a side small door sleeve, and a gap between the lower part of the door plate and the sill, the fireproof plates are shape plates, one ends of the fireproof plates are door plate straight extending parts, the other ends of the fireproof plates are bending parts, the bending parts are of blocking structures formed by bending the shape plates, a simple fireproof and heat dissipation device is installed in the door plate, and the simple fireproof and heat dissipation device comprises a fire blocking plate and fireproof cotton. According to the fire-roof structure, the fireproof plates are installed at the landing door gaps, the gaps between the landing door, the small door sleeves and thesill are effectively sealed, the spreading of fire is effectively prevented, and the fireproof performance and safety performance of an elevator are improved.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a fireproof structure of a landing door. Background technique [0002] The elevator is used in buildings, and the elevator includes a car moving along the shaft and a landing door device on each floor. The landing door includes two left and right door panels. Generally, when the landing door is installed, there will be a gap between the door panel and the elevator door cover, and there is also a large gap between the door panel and the sill. When a fire occurs, the fire will easily spread along the gap. To the shaft and the car, it will affect the circuit control system of the elevator, resulting in poor safety of the elevator. [0003] As a fire-resistant elevator landing door, it must meet certain fire protection requirements and safety requirements. At present, most fireproof landing doors on the market have complex structures and cumbersome manufacturing processes, which ...

AI Technical Summary

Problems solved by technology

[0004] The invention aims to overcome the problem of poor fireproof performance of elevator landing doors, and provides a landing door fireproof structure with good fireproof effect, low cost and good safety effect

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