Single-open sound-proof fireproof door

Abstract

The utility model discloses a single-open soundproof fireproof door, which relates to the technical field of fireproof doors, and comprises a fireproof door body, the fireproof door body is mounted in a door frame, and the door frame is embedded into a wall. The fireproof door body comprises a cold-roll steel plate facing layer, a first magnesium oxide door core layer, a flame-retardant extruded sheet layer, a second magnesium oxide door core layer, a first cold-roll steel plate layer and a flame-retardant sheet layer which are sequentially arranged, and one side of the fireproof door body is movably connected and mounted in the door frame through a mounting part. The high-frequency vibration absorption sound-absorbing material is reasonable in design, convenient to use, excellent in sound-absorbing effect, recyclable, good in wear resistance, capable of reducing smoke, toxicity and public nuisance to a human body in case of a fire, convenient to rescue in time and good in market application prospect, and can be used for absorbing high-frequency vibration and reducing the toxicity and public nuisance to the human body in case of the fire.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a single-leaf sound-insulating fire door. Background Art

[0002] Sound-insulating fire doors are often used in the corridors of offices and residential areas to achieve the purposes of sound insulation and fire prevention. With the progress of the times, the requirements for sound-insulating fire doors are getting higher and higher. In the prior art, the interior of the door leaf of a sound-insulating fire door usually uses sound-insulating materials such as glass wool or rock wool as sound-insulating fillers. However, this kind of sound-insulating door only reduces part of the noise with sound-insulating materials simply, resulting in poor sound-insulating effect and unable to achieve complete sound insulation. In addition, traditional flame retardant materials widely use flame retardant mixtures composed of halogen-containing polymers or halogen-containing flame retardants. Once a fire occurs, due to thermal decomposition and combustion, a large amount of smoke and toxic corrosive gases will be generated, thus hindering fire fighting and personnel evacuation, and corroding instruments and equipment. Therefore, how to provide a fire door that can both improve the sound-insulating effect and reduce low smoke, low toxicity and pollution-free during a fire is a problem we need to solve. Summary of the Utility Model

[0003] (I) Purpose of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a single-leaf sound-insulating fire door to solve the above-mentioned existing technical problems.

[0005] (II) Technical Solution

[0006] To achieve the above technical purpose, the present utility model provides a single-leaf sound-insulating fire door, including a fire door body, the fire door body is installed in a door frame, and the door frame is embedded in a wall for installation;

[0007] The fire door body includes a cold-rolled steel plate decorative layer, a first magnesium oxide core layer, a flame-retardant extruded board layer, a second magnesium oxide core layer, a first cold-rolled steel plate layer, and a flame-retardant board layer arranged in sequence. A 15-mm wooden block is erected between the flame-retardant extruded board layer and the second magnesium oxide core layer. The wooden block is arranged near the door frame position and is provided with a fire expansion seal on the side facing the door frame. One side of the fire door body is movably connected and installed in the door frame through an installation component.

[0008] Preferably, the door frame includes a second cold-rolled steel plate and a third cold-rolled steel plate. The second cold-rolled steel plate and the third cold-rolled steel plate are arranged between the fire door body and the wall and are locked tightly through bolt connectors.

[0009] Preferably, a flame-retardant density board is further arranged between the second cold-rolled steel plate and the third cold-rolled steel plate. The flame-retardant density board is compacted and locked through the bolt connectors. A fire expansion seal is arranged on the side of the flame-retardant density board close to the fire door body.

[0010] Preferably, a fireproof expansion seal is fixedly installed on the second cold-rolled steel plate; after assembly, the corner surface of the flame-retardant board layer of the fireproof door body abuts against the fireproof expansion seal.

[0011] Preferably, the installation component includes a stainless-steel hinge that integrally installs the fireproof door body and the third cold-rolled steel plate, facilitating the smooth rotation of the fireproof door body.

[0012] Preferably, a first installation and fixing bar and a second installation and fixing bar are respectively provided on one side of the second cold-rolled steel plate and the third cold-rolled steel plate close to the wall.

[0013] Preferably, the first installation and fixing bar and the second installation and fixing bar are locked to the wall by screws.

[0014] Compared with the existing technology, the beneficial effects of the present utility model are as follows: The present utility model is reasonably designed, easy to use, has excellent sound absorption effect, can be recycled, has good wear resistance, and in addition to having a good ability to absorb high-frequency vibrations, it can reduce smoke, toxicity and public hazards to the human body during a fire, facilitating timely rescue, and has good market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0016] Figure 1 It is a schematic structural diagram of the fireproof door body of the present utility model;

[0017] Figure 2 is Figure 1 a cross-sectional view of part A-A in

[0018] Figure 3 is Figure 1 a cross-sectional view of part C-C in

[0019] Description of the Drawings: Fire door body 100, cold-rolled steel sheet decorative layer 101, first magnesium oxide core layer 102, flame-retardant extruded board layer 103, second magnesium oxide core layer 104, first cold-rolled steel sheet layer 105, flame-retardant board layer 106, wooden block 107, installation component 200, stainless steel hinge 201, first installation and fixing tie bar 202, second installation and fixing tie bar 203, door frame 300, second cold-rolled steel sheet 301, fire expansion seal 302, third cold-rolled steel sheet 303, bolt connection 304, flame-retardant density board 305, wall 400. Detailed Implementation Manner

[0020] The following description is essentially exemplary only and is not intended to limit the present disclosure, its application, and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the embodiments of the present disclosure and does not necessarily show the specific dimensions and their ratios of the embodiments of the present disclosure. Specific parts in a specific drawing may be exaggerated to illustrate relevant details or structures of the embodiments of the present disclosure.

[0021] See in detail Figures 1-3 As shown, the single-leaf sound-insulating and fire-proof door provided by the present utility model specifically includes a fire door body 100, the fire door body 100 is installed in a door frame 300, and the door frame 300 is embedded and installed in a wall 400. Specifically, see Figure 3 , the fire door body 100 includes a cold-rolled steel sheet decorative layer 101, a first magnesium oxide core layer 102, a flame-retardant extruded board layer 103, a second magnesium oxide core layer 104, a first cold-rolled steel sheet layer 105, and a flame-retardant board layer 106 arranged in sequence. Among them, a wooden block 107 is arranged between the flame-retardant extruded board layer 103 and the second magnesium oxide core layer 104. The wooden block 107 is arranged near the door frame 300 and a fire expansion seal is provided on the side facing the door frame 300. The thickness of the fire expansion seal here is 2 mm. One side of the fire door body 100 is movably connected and installed in the door frame 300 through an installation component 200. The installation component 200 includes a stainless steel hinge 201 that installs the fire door body 100 and a third cold-rolled steel sheet 303 into one body, which is convenient for the fire door body 100 to rotate during use. A first installation and fixing tie bar 202 and a second installation and fixing tie bar 203 are respectively provided on the sides of the second cold-rolled steel sheet 301 and the third cold-rolled steel sheet 303 close to the wall 400, and the first installation and fixing tie bar 202 and the second installation and fixing tie bar 203 are locked on the wall 400 by screws.

[0022] See in detail Figure 3, the door frame 300 includes a second cold-rolled steel plate 301 and a third cold-rolled steel plate 303. The second cold-rolled steel plate 301 and the third cold-rolled steel plate 303 are arranged between the fire door body 100 and the wall 400 and are locked by bolt connectors 304. A flame-retardant density board 305 is also provided between the second cold-rolled steel plate 301 and the third cold-rolled steel plate 303. At the same time, the flame-retardant density board 305 is also clamped by the bolt connectors 304. A fire expansion seal with a thickness of 2 mm is provided on the side of the flame-retardant density board 305 facing the fire door body 100. A fire expansion seal 302 is fixedly installed on the second cold-rolled steel plate 301. After assembly, the corner surface of the flame-retardant board layer 106 of the fire door body 100 abuts against the fire expansion seal 302.

[0023] During use, the effect of noise blocking is increased by two layers of magnesium oxide core layers. At the same time, the pores in the magnesium oxide core layers can absorb the energy of sound waves, weakening the sound wave energy. Six weakening effects of the cold-rolled steel plate decorative layer, the first magnesium oxide core layer, the flame-retardant extruded board layer, the second magnesium oxide core layer, the first cold-rolled steel plate layer, and the flame-retardant board layer are set, thus achieving the best sound insulation effect. At the same time, fire expansion seals are also provided at multiple locations between the door frame and the fire door body. When a fire occurs, the fire expansion seals automatically expand when heated to fill the gap between the door leaf and the door frame, preventing the thick smoke generated by the fire from flowing out of the door. At the same time, the flame-retardant extruded board layer can use its incombustibility to reduce convective heat transfer and play a role in fire prevention and heat insulation.

[0024] In the above text, the exemplary embodiments of the solutions proposed by the present disclosure are described in detail with reference to the preferred embodiments. However, those skilled in the art can understand that without departing from the concept of the present disclosure, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present disclosure can be made without exceeding the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. Single-leaf soundproof and fireproof door, including a fireproof door body (100), the fireproof door body (100) is installed in a door frame (300), and the door frame (300) is embedded in a wall (400); characterized in that: The fireproof door body (100) includes a cold-rolled steel plate decorative layer (101), a first magnesium oxide core layer (102), a flame-retardant extruded board layer (103), a second magnesium oxide core layer (104), a first cold-rolled steel plate layer (105) and a flame-retardant board layer (106) arranged in sequence. A wooden block (107) is arranged between the flame-retardant extruded board layer (103) and the second magnesium oxide core layer (104). The wooden block (107) is arranged near the door frame (300) and a fireproof expansion seal is provided on the side facing the door frame (300). One side of the fireproof door body (100) is movably connected and installed in the door frame (300) through a mounting component (200).

2. The single-leaf sound-insulating and fire-proof door according to claim 1, wherein The door frame (300) includes a second cold-rolled steel plate (301) and a third cold-rolled steel plate (303). The second cold-rolled steel plate (301) and the third cold-rolled steel plate (303) are arranged between the fireproof door body (100) and the wall (400) and are locked by bolt connectors (304).

3. The single-leaf soundproof and fireproof door according to claim 2, wherein, A flame-retardant density board (305) is further arranged between the second cold-rolled steel plate (301) and the third cold-rolled steel plate (303). The flame-retardant density board (305) is compacted and locked by the bolt connectors (304). A fireproof expansion seal is provided on the side of the flame-retardant density board (305) close to the fireproof door body (100).

4. The single-leaf sound-insulating and fire-proof door according to claim 2 or 3, wherein A fireproof expansion seal (302) is fixedly installed on the second cold-rolled steel plate (301); after assembly, the corner surface of the flame-retardant board layer (106) of the fireproof door body (100) abuts against the fireproof expansion seal (302).

5. The single-leaf sound-insulating and fire-proof door according to claim 4, characterized in that, The mounting component (200) includes a stainless steel hinge (201) that installs the fireproof door body (100) and the third cold-rolled steel plate (303) into one body.

6. The single-leaf sound-insulating and fire-proof door according to claim 5, wherein, A first installation and fixing bar (202) and a second installation and fixing bar (203) are respectively provided on the sides of the second cold-rolled steel plate (301) and the third cold-rolled steel plate (303) close to the wall (400).

7. The single-leaf soundproof and fireproof door according to claim 6, wherein, The first installation and fixing bar (202) and the second installation and fixing bar (203) are locked to the wall (400) by screws.

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