CN110747905A

CN110747905A - A folding fire prevention apron for utility tunnel horizontal entrance to a cave

Info

Publication number: CN110747905A
Application number: CN201910950264.6A
Authority: CN
Inventors: 仲良; 高宇; 许大鹏; 钟俊彬
Original assignee: Shanghai Water Design Engineering Co Ltd
Current assignee: Shanghai Water Design Engineering Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-02-04

Abstract

The invention relates to a folding fireproof cover plate for a horizontal hole of a comprehensive pipe gallery. When the fire hazard appears and needs to close the fire protection apron, pull outside apron through artificial or remote control, utilize outside fire protection apron to cover under the effect of dead weight automatically, cause other apron to fall gradually, covered by fire protection apron up to whole entrance to a cave, the flexible material between the fire protection apron is extruded, plugs up the space between each board. The invention makes up the defects of heavy horizontal cover plate and large occupied space of the traditional comprehensive pipe gallery, and greatly saves manpower and closing time by using the self weight of the cover plate. The vertical fireproof partition problem of the utility tunnel is well solved, and the utility tunnel has strong field adaptability.

Description

A folding fire prevention apron for utility tunnel horizontal entrance to a cave

Technical Field

The invention relates to a folding fireproof cover plate for a horizontal hole of a comprehensive pipe gallery.

Background

Utility tunnel has the intensive, and the effect of convenient management and operation obtains wideling popularize in recent years, and the biggest danger source that utility tunnel faced is the conflagration. The main method for treating fire is to control possible fire in a limited range by fire-proof partition, besides using water or other medium to extinguish fire when fire occurs. The fireproof partition is mainly provided with a fireproof door, a fireproof cover plate and the like. Fire prevention apron often is applied to for example dog-house and intersection etc. in the double-deck or multilayer structure node of piping lane, can play and block the effect that the conflagration spreads vertically. The dog-house is generally opened and is had the pipeline in the convenient utility tunnel of rectangular shape entrance to a cave to hang into, and the intersection is the criss-cross node of piping lane, needs to set up stair and the stair hole of walking from top to bottom at the intersection.

The common fireproof cover plate sometimes adopts a concrete cover plate to ensure the fireproof effect, has heavy weight and wastes time and labor in carrying; sometimes, the fireproof cover plate is difficult to arrange, and the fireproof door is used for replacing the fireproof cover plate in a mode of arranging a conversion space, so that a lot of extra engineering quantities are caused.

Disclosure of Invention

The invention aims to develop a folding fireproof cover plate for a horizontal hole of a utility tunnel aiming at the defects of fireproof cover plates of horizontal holes at nodes such as a feeding port, an intersection and the like of the existing utility tunnel, and the folding fireproof cover plate can be conveniently used for nodes of the feeding port and the intersection in a labor-saving manner.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a folding fire prevention apron for utility tunnel horizontal entrance to a cave, its characterized in that sets up the track in the horizontal position both sides of opening a hole of piping lane, sets up folding fire prevention apron in the first end in entrance to a cave, folding fire prevention apron comprises a plurality of fire prevention apron, through hinge connection between two adjacent fire prevention apron, apron side and bottom edge all set up flexible material, outside fire prevention apron sets up the cable, outside fire prevention apron tip is equipped with the pulley with track matched with, by cable pulling outside fire prevention apron, the pulley outside side-to-side movement along the track drives other apron and falls gradually, is covered by fire prevention apron until whole entrances to a cave.

Furthermore, a caulking groove is formed in the second end of the hole and matched with the pulley at the end part of the outermost fireproof cover plate.

Furthermore, the fireproof cover plate is made of concrete or fireproof materials meeting fireproof requirements.

Further, the guy cable of the outermost fireproof cover plate is controlled by remote control or manual operation.

Furthermore, the upper end face of each fireproof cover plate is provided with a handle for manually folding and opening the cover plate.

When the fire hazard appears and needs to close the fire protection apron, drive the cable through manual or utilize remote control unit, by cable pulling outside fire protection apron, outside fire protection apron is covered under the effect of pulling force and dead weight to cause other apron to fall gradually, covered by fire protection apron up to whole entrance to a cave, flexible material between the fire protection apron is extruded, plugs up the space between each board. The invention makes up the defects of heavy horizontal cover plate and large occupied space of the prior comprehensive pipe gallery, improves the use safety by using remote control, and greatly saves manpower and closing time by using the self weight of the cover plate. The vertical fireproof partition problem of the utility tunnel is well solved, and the utility tunnel has strong field adaptability. The invention has the advantages of reliable structure, convenience, labor saving, remote control, low cost and the like, and is a product innovation for the fireproof technology of the comprehensive pipe gallery.

Drawings

FIG. 1 is a vertical layout view of a fireproof cover plate at an opening;

FIG. 2 is an expanded view of the upper side of the fireproof cover plate;

fig. 3 is an expanded view of the underside of the fire deck.

The figure includes: 1. utility tunnel horizontal entrance to a cave, 2, track, 3, collapsible fire prevention apron, 4, handle, 5 side flexible material, 6, metal hinge, 7, the device that opens and shuts, 8, cable, 9, caulking groove, 10, pulley, 11, bottom flexible material.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Wherein like reference numerals refer to like parts throughout.

Shown 1 in the figure is utility tunnel horizontal entrance to a cave, and 3 are collapsible fire prevention apron, collapsible fire prevention apron includes a plurality of fire prevention apron, connects through metal hinge 6 between the adjacent fire prevention apron, and fire prevention apron material can be concrete or other fire-resistant time is not less than 2 hours's fire prevention material, and 4 are the handle of setting on each fire prevention apron, can be used to apron manual folding and open. The edges of the folded cover plates which are connected are provided with flexible materials 5 which play a role in compacting gaps existing between the cover plates after the cover plates are unfolded. When the fireproof cover plate needs to be closed, the opening and closing device 7 drives the inhaul cable 8 to pull the outermost fireproof cover plate manually or by using a remote control device. When the outermost folding cover plate is pulled out, the pulley 10 below the cover plate can quickly move along the rails 2 arranged at two sides of the opening under the action of self weight and pulling force (the rails are made of smoother metal or fine stone concrete for example), and when the outermost cover plate moves towards the opening, the cover plate with the rear part is gradually and automatically covered until the whole opening is covered. At this time, the side flexible materials 5 arranged between the cover plates and the bottom flexible material 11 arranged at the bottom of the cover plates are extruded tightly, so that the possibility of air flowing up and down is reduced. And the pulley of the cover plate at the outermost side is just clamped into the caulking groove 9 reserved at the edge of the hole, so that the cover plate is more stable.

When the folding cover plate is stored, the folding cover plate can be stored by lifting the handle 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a folding fire prevention apron for utility tunnel horizontal entrance to a cave, its characterized in that sets up the track in the horizontal position both sides of opening a hole of piping lane, sets up folding fire prevention apron in the first end in entrance to a cave, folding fire prevention apron comprises a plurality of fire prevention apron, through hinge connection between two adjacent fire prevention apron, apron side and bottom edge all set up flexible material, outside fire prevention apron sets up the cable, outside fire prevention apron tip is equipped with the pulley with track matched with, by cable pulling outside fire prevention apron, the pulley outside side-to-side movement along the track drives other apron and falls gradually, is covered by fire prevention apron until whole entrances to a cave.

2. The folding fire-resistant cover plate as claimed in claim 1, wherein a caulking groove is provided at the second end of the opening, and the caulking groove is engaged with a pulley at the end of the outermost fire-resistant cover plate.

3. The folding fire protection cover plate of claim 1, wherein the fire protection cover plate is made of concrete or fire protection material meeting fire protection requirements.

4. The folding fire protection cover plate of claim 1, wherein the guy cable of the outermost fire protection cover plate is controlled by remote control or manual operation.

5. The folding fire-resistant cover plate as claimed in claim 1, wherein each fire-resistant cover plate is provided at an upper end thereof with a handle for manual folding and unfolding of the cover plate.