CN214659765U

CN214659765U - Steel fireproof door

Info

Publication number: CN214659765U
Application number: CN202022752612.XU
Authority: CN
Inventors: 吕鑫彬
Original assignee: Shanghai Anpan Door & Window Co ltd
Current assignee: Shanghai Anpan Door & Window Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-11-09
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a fire door is prevented to steel belongs to and prevents fire door technical field. The fireproof door comprises a door frame, a door leaf, a fireproof lock, a fireproof hinge and a fireproof bolt, wherein the door leaf comprises a door panel, a fireproof door core plate, a door framework and a glass magnesium fireproof plate; and a covering seam plate is further fixed on the door panel at the joint of the two door leaves, and a fireproof expansion sealing element is also arranged on the contact surface of the covering seam plate and the door framework on the side surface of the fireproof door core plate. The utility model discloses a steel fire door, through the fire door core plate filled in the door panel of the door leaf, the glass magnesium fire-proof plate is arranged between the door panel on the side of the fire-receiving surface and the fire door core plate, so that the fire door has good heat-insulating and fire-proof performance; the door leaf is provided with a crack covering plate which can effectively block the fire tongues sprayed in the cracks.

Description

Steel fireproof door

Technical Field

The utility model relates to a fire door is prevented to steel belongs to and prevents fire door technical field.

Background

The fireproof door is a door which can meet the requirements of fire resistance, integrity and heat insulation within a certain time, and is a fireproof partition which is arranged between fireproof partitions, evacuation staircases, vertical shafts and the like and has certain fire resistance. For example: the fire extinguishing device is attached to equipment rooms (steel bottle rooms, foam stations and the like) for fixing the fire extinguishing device in high-rise civil buildings, and the first-level fireproof door is adopted as a partition wall door of a ventilation and air conditioning machine room and the like; because of the limitation of conditions, a boiler for burning oil and gas, a power transformer for burning oil and soaking combustible oil, a high-voltage capacitor filled with combustible oil, a switch and the like must be arranged in a high-rise building, and a door on a partition wall of a special room is a class-A fireproof door. And the special-requirement fire-proof individual door is designed, such as the individual door of a fire-fighting monitoring command center, a file data room, a valuable goods warehouse and the like, and a class A or class B fire-proof door is usually selected. The individual door of high-rise high-grade residential building is usually a fire-proof anti-theft door. The fire door is an important component in fire-fighting equipment and is an important part in social fire prevention, and a door closer of the fire door or a door closing device (except for a special part, such as a pipeline well door and the like) for automatically closing a door leaf of a normally open fire door can be arranged on the fire door.

Deformation such as warpage, bending easily appear in current fire door under the higher condition of temperature, lead to appearing the gap between fire door main part and the fire prevention door frame, and flame or dense cigarette are easily scurried out from the gap, and then have reduced safety protection performance, and the effect of fire prevention is poor, the incident easily appears.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the utility model provides a fire door is prevented to steel, it has solved among the prior art prevents that fire door produces deformation easily under the high temperature condition and leads to preventing the problem that appears the gap between fire door main part and the fire prevention door frame.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

a steel fireproof door comprises a door frame, door leaves, fireproof locks, fireproof hinges and fireproof bolts, wherein the two sides inside the door frame are respectively provided with the door leaves, the two door leaves are rotatably connected with the door frame through the fireproof hinges, the contact surfaces of the door frame and the door leaves are provided with fireproof expansion sealing parts, the fireproof lock is installed in the middle of one door leaf and is positioned on the back fire surface of the door leaf, the upper end and the lower end of the other door leaf are respectively provided with the fireproof bolts for limiting the door leaves on the door frame, and the fireproof bolts are positioned on the fire receiving surface of the door leaves;

the door leaf comprises a door panel, a fireproof door core plate, a door framework and a glass magnesium fireproof plate, wherein the door panel is respectively coated on two sides of the fireproof door core plate, the door frameworks are arranged on two sides and inside the fireproof door core plate, the door framework adopts channel steel, and the glass magnesium fireproof plate is arranged between the door panel and the fireproof door core plate on one side of a fire-receiving surface;

a covering seam plate is also fixed on the door panel at the joint of the two door leaves, and a fireproof expansion sealing element is also arranged on the contact surface of the covering seam plate and the door framework on the side surface of the fireproof door core plate;

the door panel and the seam covering plate are both made of cold-rolled galvanized steel sheets.

As a preferred example, the upper end of the door frame is further provided with a fire-proof sequencer for ensuring that the closing sequence of the two door leaves is correct, and the fire-proof sequencer is positioned on the fire-receiving surface of the door leaves.

As a preferred example, the door frame is a rectangular frame formed by splicing four steel channels.

As a preferred example, a plurality of horizontal door frames and a plurality of vertical door frames are arranged inside the fire door core board, and the horizontal door frames and the vertical door frames form a grid-shaped frame.

The utility model has the advantages that: the utility model discloses fire door is prevented to steel, through the fire door core that prevents of the inside packing of the shop front board at the door leaf, be equipped with glass magnesium PLASTIC LAMINATED between shop front board and the fire door core of face one side of receiving the fire, make prevent that fire door has good thermal-insulated fire-proof's performance, the fire door core is inside and be equipped with a skeleton all around, the effect of preventing fire door intensity has the improvement, the fire prevention inflation sealing member of installation between door frame and door leaf, when the phenomenon that catches fire appears, the inflation spare expands, prevent the outflow of smog, the utility model relates to a rationally, moreover, the steam generator is simple in structure, the fire-proof heat-proof quality is good, high structural strength, be equipped with the lid seam board on the door leaf, can carry out effective separation to the fire tongue that spouts in the gap.

Drawings

FIG. 1 is a back fire surface elevation view of a steel fire door according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;

fig. 4 is a schematic sectional view taken along the direction C-C in fig. 1.

In the figure: 1. a door frame; 2. a door leaf; 21. a door panel; 22. a fire door core panel; 23. a door frame; 24. a glass magnesium fireproof plate; 3. a fireproof lock; 4. a fire-proof hinge; 5. a fireproof bolt; 6. a fire resistant intumescent seal; 7. covering and sewing the plate; 8. fire prevention sequencer.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings and embodiments.

As shown in the embodiments of fig. 1-4, a steel fireproof door includes a door frame 1, door leaves 2, fireproof locks 3, fireproof hinges 4 and fireproof plugs 5, where the door frame 1 is a rectangular frame formed by splicing four channel steel, the channel steel is a 1.50mm cold-rolled galvanized steel sheet, two sides inside the door frame 1 are both provided with a door leaf 2, two door leaves 2 are both rotatably connected with the door frame 1 through a plurality of fireproof hinges 4, a fireproof expansion sealing member 6 is arranged on a contact surface between the door frame 1 and the door leaves 2, the fireproof locks 3 are installed in the middle of one of the door leaves 2, the fireproof locks 3 are located on a back fire surface of the door leaves 2, the upper and lower ends of the other door leaf 2 are respectively provided with fireproof plugs 5 for limiting the door leaves 2 on the door frame 1, and the fireproof plugs 5 are located on a fire receiving surface of the door leaves 2;

the upper end of the door frame 1 is also provided with a fire prevention sequencer 8 for ensuring the correct closing sequence of the two door leaves 2, and the fire prevention sequencer 8 is positioned on the fire receiving surface of the door leaves 2;

the door leaf 2 comprises a door panel 21, a fireproof door core plate 22, door frameworks 23 and a glass magnesium fireproof plate 24, two sides of the fireproof door core plate 22 are respectively wrapped with the door panel 21, main raw materials of the fireproof door core plate 22 are magnesium oxide, magnesium chloride, perlite and the like, two sides of the fireproof door core plate 22 are respectively fixed with a vertical door framework 23, two ends of the fireproof door core plate are respectively fixed with a horizontal door framework 23, four horizontal door frameworks 23 and four vertical door frameworks 23 are arranged inside the fireproof door core plate 22, the horizontal door frameworks 23 and the vertical door frameworks 23 form a latticed framework, 6 door frameworks 23 are respectively arranged on each door leaf 2, the door frameworks 23 adopt channel steel, the glass magnesium fireproof plate 24 is arranged between the door panel on one side of a fire-receiving face and the fireproof door core plate 22, the thickness of the glass magnesium fireproof plate 24 is 10mm, and the glass magnesium fireproof plate 24 is also called a glass magnesium plate, a magnesium oxide plate, a magnesite plate and a magnesium plate. The material components for producing the glass-magnesium fireproof plate 24 are active high-purity magnesium oxide (MgO), high-quality magnesium chloride (MgCl2), alkali-resistant glass fiber cloth, plant fibers, non-combustible light perlite, chemically stable lithopone, high polymer and high-performance modifier;

the door panel at the joint of the two door leaves 2 is also fixed with a cover seam plate 7, the two cover seam plates 7 are respectively fixed on the door panels of the two door leaves 2, one cover seam plate 7 is positioned on the fire receiving surface, the other cover seam plate is positioned on the back fire surface, and the contact surface of the cover seam plate 7 and the door framework 23 on the side surface of the fireproof door core plate 22 is also provided with a fireproof expansion sealing element 6; wherein, the fireproof expansion sealing element 6 is a high temperature resistant silica gel sealing strip.

The door panel 21 and the cover seam plate 7 are both made of cold-rolled galvanized steel sheets with the thickness of 1.00 mm.

Through the fire door core 22 that prevents of door panel 21's inside packing at door leaf 2, receive the door panel 21 of fire face one side and prevent being equipped with glass magnesium PLASTIC LAMINATED 24 between the door core 22, make to prevent that fire door has good thermal-insulated fire-proof's performance, prevent that fire door core 22 is inside and be equipped with door skeleton 23 all around, the effect of preventing fire door intensity has been improved, the fire prevention inflation sealing member 6 of installation between door frame 1 and door leaf 2, when the phenomenon that catches fire appears, the inflation piece expands, prevent the outflow of smog, the utility model relates to a rationally, moreover, the steam generator is simple in structure, the fire-proof heat-proof quality is good, high structural strength, be equipped with crack board 7 on door leaf 2, can carry out effective separation to the fire tongue that spouts in the gap.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A steel fireproof door comprises a door frame (1), door leaves (2), fireproof locks (3), fireproof hinges (4) and fireproof bolts (5), wherein the two sides inside the door frame (1) are respectively provided with the door leaves (2), the two door leaves (2) are rotatably connected with the door frame (1) through the fireproof hinges (4), a fireproof expansion sealing element (6) is arranged on the contact surface of the door frame (1) and the door leaves (2), the fireproof locks (3) are arranged in the middle of one door leaf (2), the fireproof locks (3) are positioned on the back fire surface of the door leaves (2), the upper end and the lower end of the other door leaf (2) are respectively provided with the fireproof bolts (5) used for limiting the door leaves (2) on the door frame (1), and the fireproof bolts (5) are positioned on the fire receiving surface of the door leaves (2); the method is characterized in that:

the door leaf (2) comprises a door panel (21), a fireproof door core board (22), a door framework (23) and a glass magnesium fireproof board (24), wherein the door panel (21) is respectively coated on two surfaces of the fireproof door core board (22), the door framework (23) is respectively arranged on two sides and inside the fireproof door core board (22), the door framework (23) adopts channel steel, and the glass magnesium fireproof board (24) is arranged between the door panel and the fireproof door core board (22) on one side of a fire receiving surface;

a cover seam plate (7) is further fixed on the door panel at the joint of the two door leaves (2), and a fireproof expansion sealing element (6) is also arranged on the contact surface of the cover seam plate (7) and a door framework (23) on the side surface of the fireproof door core plate (22);

the door panel (21) and the cover seam plate (7) are both made of cold-rolled galvanized steel sheets.

2. The fire steel door according to claim 1, characterized in that the upper end of the frame (1) is further provided with a fire-proof sequencer (8) for ensuring the correct closing sequence of the two door leaves (2), and the fire-proof sequencer (8) is located on the fire-receiving surface of the door leaves (2).

3. The fire door steel door according to claim 1, characterized in that said frame (1) is a rectangular frame assembled by four channel steel.

4. The steel fireproof door of claim 1, wherein the fireproof door core (22) is internally provided with a plurality of horizontal door frames (23) and a plurality of vertical door frames (23), and the horizontal door frames (23) and the vertical door frames (23) form a grid-like frame.