CN215804212U

CN215804212U - Steel fireproof door

Info

Publication number: CN215804212U
Application number: CN202122236811.XU
Authority: CN
Inventors: 李振华
Original assignee: Renqiu Wenxin Door Industry Co ltd
Current assignee: Renqiu Wenxin Door Industry Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-11
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a steel fireproof door, which comprises a door frame and a door leaf, wherein the door leaf is provided with an observation hole, fireproof glass and heat-resistant glass are arranged in the observation hole, and fireproof expansion sealing strips are respectively arranged on the periphery of the door leaf and the inner side of the door frame; a plurality of rubber strips which are parallel to each other are further arranged around the door leaf, the cross section of each rubber strip is in a splayed shape, the rubber strips which are in one-to-one correspondence with the rubber strips are arranged on the inner side of the door frame, and when the door leaf is closed, the rubber strips on the door leaf and the rubber strips on the door frame jointly enclose a plurality of cavities with rhombic cross sections; when a fire disaster happens, the fireproof expansion sealing strips on the door leaf and the door frame are respectively heated and expanded to fill the gap between the periphery of the door leaf and the inner side of the door frame, so that a large amount of smoke is prevented from crossing the door; in addition, after the door leaf is closed, when sound waves pass through the joint of the door leaf and the door frame, energy is scattered and consumed in the cavities, the decibel value of noise passing through the door is effectively reduced, and noise pollution is avoided.

Description

Steel fireproof door

Technical Field

The utility model relates to the field of fire doors, in particular to a steel fire door.

Background

As is well known, a fire door is a door that can satisfy the requirements of fire resistance stability, integrity and heat insulation within a certain period of time, and is a fire barrier with a certain fire resistance, which is disposed in a fire partition, an evacuation staircase, a vertical shaft, etc., and can effectively prevent a fire from rapidly spreading, thereby providing valuable time for evacuation of people.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the background art, the utility model aims to provide a steel fireproof door which effectively solves the problems in the background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a steel fireproof door comprises a door frame and a door leaf, wherein an observation hole is formed in the door leaf, fireproof glass and heat-resistant glass are arranged in the observation hole, and fireproof expansion sealing strips are respectively arranged on the periphery of the door leaf and the inner side of the door frame; the door comprises a door frame, a door leaf and a door frame, wherein the door leaf is characterized in that a plurality of rubber strips which are parallel to each other are arranged around the door leaf, the cross sections of the rubber strips are splayed, the inner side of the door frame is provided with the rubber strips which are in one-to-one correspondence with the rubber strips, and when the door leaf is closed, the rubber strips on the door leaf and the rubber strips on the door frame jointly enclose a plurality of cavities with rhombic cross sections.

Furthermore, the door leaf includes left door leaf and right door leaf, the cooperation is provided with the fire prevention lock between left door leaf and the right door leaf, left door leaf and right door leaf articulate on the door frame through the fire prevention hinge respectively, still cooperate respectively between door frame and left door leaf and the right door leaf and be provided with the fire prevention bolt.

Furthermore, flame-retardant cloth cover perlite fireproof plates are respectively arranged in the left door leaf and the right door leaf.

Further, the height of the heat-resistant glass is not more than 5 cm.

Furthermore, the door leaf and the door frame are correspondingly provided with baffle plates, and the fireproof expansion sealing strip is arranged on the baffle plates on the door leaf and the door frame.

Furthermore, the right side of the left door leaf and the left side of the right door leaf are respectively provided with a seam covering plate, and the inner side of the seam covering plate and the joint of the left door leaf and the right door leaf are also provided with fireproof expansion sealing strips.

Furthermore, the right side of the left door leaf and the left side of the right door leaf are correspondingly provided with a plurality of rubber strips, and when the door leaf is closed, the rubber strips on the right side of the left door leaf and the rubber strips on the left side of the right door leaf jointly enclose a plurality of cavities with rhombic cross sections.

Further, a door closer is arranged between the door leaf and the door frame in a matched mode.

The utility model has the following beneficial technical effects:

when a fire disaster occurs in a closed state of the door leaf, the fireproof expansion sealing strips on the door leaf and the door frame are respectively heated and expanded to fill the gap between the periphery of the door leaf and the inner side of the door frame, so that a large amount of smoke is prevented from crossing the door; in addition, after the door leaf is closed, the rubber strips on the door leaf and the rubber strips on the door frame jointly enclose a plurality of cavities with rhombic cross sections, and when sound waves pass through the joint of the door leaf and the door frame, energy is scattered and consumed in the cavities, so that the decibel value of noise passing through the door is effectively reduced, and noise pollution is avoided.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A in FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is an enlarged view of a portion of FIG. 2 at C;

FIG. 5 is an enlarged view of a portion of FIG. 2 at D;

fig. 6 is a cross-sectional view taken along line E-E in fig. 1.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-6, the steel fireproof door according to this embodiment includes a door frame 1 and a door leaf, the door leaf is provided with an observation hole, the observation hole is provided with fireproof glass 2 and heat-resistant glass 3, the fireproof glass 2 is pouring type fireproof glass, and fireproof liquid is poured between the two side glasses, when a fire occurs, the glass bursts towards the fire surface, and the fireproof liquid is rapidly hardened to form an opaque fireproof heat insulation board, the existing fireproof door product only has the fireproof glass alone, after the fireproof liquid forms the fireproof heat insulation board, the fireproof door cannot observe the fire field situation of the other side, which is not beneficial for the fire fighter to know the fire field situation of the other side of the fireproof door without opening the door, while the heat-resistant glass 3 is often used as the observation hole glass of the boiler furnace, the transparency is not significantly reduced, so that the fire fighter who enters the field can know the situation of the other side of the fireproof door without opening the fire door safely, the height of the heat-resistant glass 3 is not more than 5cm, emergency observation requirements can be met, the periphery of the door leaf and the inner side of the door frame 1 are respectively provided with a fireproof expansion sealing strip 4, the fireproof expansion sealing strips 4 are existing products in the field, and the fireproof expansion sealing strips 4 are also arranged between the preferred fireproof glass 2 and the observation hole in a matching mode; the door leaf is still around having many rubber strips 5 that are parallel to each other, the cross section of rubber strip 5 is the splayed, the inboard of door frame 1 is provided with the rubber strip 5 with 5 one-to-one of rubber strip, when the door leaf was closed, the rubber strip 5 on the door leaf and the rubber strip 5 on the door frame 1 enclose into a plurality of cross sections for the cavity 6 of rhombus jointly, also form a plurality of cross sections for convex side cavity 7 between rubber strip 5 and door leaf and the door frame 1, the sound wave passes at a plurality of cavities 6 and side cavity 7 internal scattering energy consumption when passing through the seam crossing of door leaf and door frame 1, effectively reduce the noise decibel value that passes through the door, avoid noise pollution.

The door leaf comprises a left door leaf 8 and a right door leaf 9, a fireproof lock 10 is arranged between the left door leaf 8 and the right door leaf 9 in a matched mode, the fireproof lock 10 can be a CB-SIA type fireproof lock produced by Digao hardware products Co., Ltd, Dengyang, the left door leaf 8 and the right door leaf 9 are respectively hinged to the door frame 1 through fireproof hinges 11, the fireproof hinges are CB-H-Z-L type fireproof hinges produced by Digao hardware products Co., Ltd, fireproof bolts 12 are further arranged between the door frame 1 and the left door leaf 8 and between the left door leaf 9 and the right door leaf 9 in a matched mode, the fireproof bolts 12 are located on the right side of the left door leaf 8 and on the left side of the right door leaf 9, and the fireproof bolts 12 can be CB-WX2 type fireproof bolts produced by Digao hardware products Co., Dengyang; and flame-retardant cloth face perlite fireproof plates 13 are respectively arranged in the left door leaf 8 and the right door leaf 9.

The door leaf and the door frame 1 are correspondingly provided with the baffle plate 14, the fireproof expansion sealing strip 4 is arranged on the baffle plate 14 on the door leaf and the door frame 1, the application of the baffle plate 14 enables the fireproof expansion sealing strip 4 to form labyrinth seal between the joint of the door leaf and the door frame 1 after being heated and expanded, smoke passes through the multilayer baffle plate 14 and the fireproof expansion sealing strip 4 more difficultly, and the smoke blocking effect of the embodiment is further enhanced.

The right side of the left door leaf 8 and the left side of the right door leaf 9 are respectively provided with a seam covering plate 15, and the inner side of the seam covering plate 15 and the joint of the left door leaf 8 and the right door leaf 9 are also provided with fireproof expansion sealing strips 4; the right side of the left door leaf 8 and the left side of the right door leaf 9 are also correspondingly provided with a plurality of rubber strips 5, when the door leaves are closed, the rubber strips 5 on the right side of the left door leaf 8 and the rubber strips 5 on the left side of the right door leaf 9 jointly enclose a plurality of cavities 6 with rhombic cross sections, and noise is prevented from passing through the door through the seam between the left door leaf 8 and the right door leaf 9; and a door closer 16 is arranged between the door leaf and the door frame 1 in a matching way, so that the door leaf tends to be naturally closed, and the fireproof effect of the fireproof door is ensured.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A steel fireproof door comprises a door frame and a door leaf, and is characterized in that an observation hole is formed in the door leaf, fireproof glass and heat-resistant glass are arranged in the observation hole, and fireproof expansion sealing strips are respectively arranged on the periphery of the door leaf and the inner side of the door frame; the door comprises a door frame, a door leaf and a door frame, wherein the door leaf is characterized in that a plurality of rubber strips which are parallel to each other are arranged around the door leaf, the cross sections of the rubber strips are splayed, the inner side of the door frame is provided with the rubber strips which are in one-to-one correspondence with the rubber strips, and when the door leaf is closed, the rubber strips on the door leaf and the rubber strips on the door frame jointly enclose a plurality of cavities with rhombic cross sections.

2. The fire steel door as claimed in claim 1, wherein the door leaf comprises a left door leaf and a right door leaf, a fire-proof lock is cooperatively disposed between the left door leaf and the right door leaf, the left door leaf and the right door leaf are respectively hinged to the door frame by a fire-proof hinge, and a fire-proof bolt is cooperatively disposed between the door frame and the left door leaf and the right door leaf.

3. The fire steel door as claimed in claim 2, wherein said left and right door leaves are respectively provided with perlite fireproof plates made of flame retardant cloth.

4. The fire resistant steel door as recited in claim 1 wherein said pyrex glass is no more than 5cm in height.

5. The fire steel door as claimed in claim 1, wherein said door leaf and said door frame are provided with baffles, and said fire-resistant intumescent seal is mounted on said baffles on said door leaf and said door frame.

6. The fire door as claimed in claim 2, wherein said left and right door leaves are provided with a seam covering respectively at the right and left sides thereof, and the inner side of said seam covering and the joint of said left and right door leaves are also provided with fire-resistant intumescent sealing strips.

7. The fire door as claimed in claim 6, wherein a plurality of rubber strips are correspondingly disposed on the right side of the left door leaf and the left side of the right door leaf, and when the door leaf is closed, the rubber strips on the right side of the left door leaf and the rubber strips on the left side of the right door leaf jointly enclose a plurality of cavities with diamond-shaped cross sections.

8. The fire door steel door as claimed in any one of claims 1 to 7, wherein a door closer is fitted between said door leaf and said door frame.