Multi-step spliced heat insulating door plate of electric rolling door

Abstract

The invention discloses a multi-step spliced heat insulating door plate of an electric rolling door. The door plate at least comprises a first surface steel plate and a second surface steel plate, wherein a first upper folding edge and a first lower frame edge are formed above and below the first surface steel plate; in the plate surface, a first ceramic fiber plate is adhered between the first lower frame edge and the first upper folding edge; the upper end of the second surface steel plate is provided with a second upper folding edge which has height less than that of the first upper folding edge, and the lower end of the second surface steel plate is provided with a second lower frame edge which is lower than the first lower frame edge; in the plate surface, a second ceramic fiber plate is adhered between the second lower frame edge and the second upper folding edge; at least one heat insulating sandwich layer is arranged between the first ceramic fiber plate and the second ceramic fiber plate in parallel; the heat insulating sandwich layers are arranged between the first upper folding edge and the second upper folding edge and between the first lower frame edge and the second lower frame edge of the first surface steel plate and the second surface steel plate at staggered upper and lower positions to insulate heat; and heat at spliced positions of multi-step upper spliced parts and multi-step lower spliced parts among a plurality of door plates does not penetrate through the spliced parts, so superior fire prevention effectiveness is acted better.

Description

technical field [0001] The present invention relates to a door panel structure with excellent heat-resisting ability, which can exert better fireproof performance in the use of rolling doors, especially a multi-stage laminated heat-resistant door panel of an electric rolling door. Background technique [0002] The installation of electric rolling doors in the store can facilitate the compartments in the store area, and the use of heat-resistant door panels, in terms of anti-theft function, can prevent the fire from spreading in the event of a fire; , such as China Taiwan Patent Certificate No. M348852 "a door panel for an electric rolling door" utility model patent case structure, the outside of the door panel is provided with an outer panel 11 made of steel plate, and the inner side of the outer panel 11 is provided with a hollow thin film made of magnesium oxide plates. A heat-resistant layer 12 in the shape of a shell box, and the inside of the heat-resistant layer 12 is ...

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Problems solved by technology

[0002] The installation of electric rolling doors in the store can facilitate the compartments in the store area, and the use of heat-resistant door panels, in terms of anti-theft function, can prevent the fire from spreading in the event of a fire; , such as China Taiwan Patent Certificate No. M348852 "a door panel for an electric rolling door" utility model patent case structure, the outside of the door panel is provided with an outer panel 11 made of steel plate, and the inner side of the outer panel 11 is provided with a hollow thin film made of magnesium oxide plates. A heat-resistant layer 12 in the shape of a shell box, and the inside of the heat-resistant layer 12 is filled with fireproof cotton to form a fireproof layer 13. The heat-resistant effect of the heat-resistant layer 12 and the fireproof layer 13 makes the door panels assembled on the rolling door. To achieve the effect of heat resistance and fire prevention, only, the above-mentioned commonly used door panels, the outer panel 11 is a frame-shaped body connected on both sides. The high temperature at one end does not need to pass through the heat-resistant layer 12 and the fire-proof layer 13, and it can still conduct heat directly along the steel plate body to the other end. In this way, when one end is a fire scene, it is difficult to avoid the temperature drop of the other end door panel. Constantly rising, even reaching the temperature enough to continue to burn; that is, the steel outer plate 11 itself is a good thermal conductor, and the practice of setting the heat-resistant layer 12 inside to fill with fireproof cotton may reduce the heat conduction area, or slow down the heat conduction speed, but the fire scene The high heat temperature is not completely blocked by the door panel, and the improvement of the fire prevention effect still needs breakthroughs in technology and structure

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