Door core plate of fireproof door

Abstract

The utility model discloses a door core plate of a fireproof door, which belongs to the field of fire fighting and comprises a mounting frame and a core plate mechanism arranged in the mounting frame, the core plate mechanism comprises a middle plate component, and a fireproof layer is arranged on the middle plate component through a connecting component with reinforcing and buffering functions. The middle plate assembly comprises two layers of explosion-proof steel plates, reinforcing ribs are arranged between the two layers of explosion-proof steel plates, the connecting assembly comprises a connecting rod connected with the explosion-proof steel plates through a positioning plate, the connecting rod is provided with a threaded end penetrating through the fireproof layer, the threaded end is provided with a locking nut, and the locking nut is connected with the connecting rod. The connecting assembly further comprises an elastic piece located between the anti-explosion steel plate and the fireproof layer. According to the door core plate of the fireproof door, impact force received by the fireproof door can be dispersed to a plurality of points through the connecting assemblies arranged in an array mode, so that local damage caused by stress concentration is avoided, the service life of the door core plate is prolonged, and the stability of the door core plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection, in particular to a core plate of a fireproof door. Background Art

[0002] Fire doors are doors that meet fire resistance stability, integrity, and thermal insulation requirements for a specified period of time. They are fireproof partitions with a certain degree of fire resistance, installed between fire compartments, evacuation stairwells, vertical shafts, and other structures. The core panel of a fire door is a crucial component of the fire door, determining its fire resistance and thermal insulation performance.

[0003] The current fireproof board of the door core panel is made by multi-layer pressing. When the fireproof board is impacted, the impact force is concentrated on the door core panel. The door core panel cannot disperse the impact force to multiple points, which will cause local damage due to stress concentration, resulting in instability of the fire door structure, and further leading to the problem of low service life of the door core panel of the fire door. Utility Model Content

[0004] The purpose of the utility model is to propose a fire door core panel in order to solve the problem that the door core panel of the existing fire door will be locally damaged due to stress concentration when subjected to impact, resulting in a short service life of the door core panel of the fire door.

[0005] In order to achieve the above purpose, the utility model adopts the following technology: a fire door core board, including:

[0006] Install the frame;

[0007] And a core plate mechanism is arranged in the installation frame, the core plate mechanism includes an intermediate plate component, and a fireproof layer is arranged on the intermediate plate component through a connecting component with reinforcement and buffering functions.

[0008] As a further description of the above technical solution: the intermediate plate assembly includes two layers of explosion-proof steel plates, and reinforcing ribs are provided between the two layers of the explosion-proof steel plates.

[0009] As a further description of the above technical solution: the connecting assembly includes a connecting rod connected to the explosion-proof steel plate through a positioning plate, the connecting rod is provided with a threaded end penetrating the fireproof layer, and a locking nut is provided on the threaded end.

[0010] As a further description of the above technical solution: the connection assembly further includes an elastic member located between the explosion-proof steel plate and the fireproof layer;

[0011] The elastic member comprises a rubber sleeve sleeved on the connecting rod, and a middle position of the rubber sleeve protrudes outwards to form a convex section.

[0012] As a further description of the above technical solution: the fireproof layer includes a fireproof board, and rock wool is arranged on the fireproof board.

[0013] As a further description of the above technical solution: a reinforcement frame is provided on the mounting frame via mounting bolts, and a buffer pad is provided on the mounting bolts at a position between the mounting frame and the reinforcement frame.

[0014] As a further description of the above technical solution: the reinforcing ribs include a plurality of first ribs, and the plurality of first ribs are arranged in a crisscross pattern between the explosion-proof steel plates.

[0015] As a further description of the above technical solution: the reinforcing ribs include a plurality of second ribs, and the plurality of second ribs are arranged in a cross shape between the explosion-proof steel plates.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] The array-like arrangement of connection components can disperse the impact force received by the fire door to multiple points, thereby avoiding local damage caused by stress concentration and helping to extend the service life of the door core panel. In addition, the array-like arrangement of connection components can form a stable support structure between the double-layer panels, effectively preventing the door core panel from deformation or displacement when subjected to external forces, greatly improving the stability of the door core panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shows a schematic diagram of the overall structure provided according to an embodiment of the utility model;

[0019] Figure 2 Shows a structural schematic diagram of a core plate mechanism provided according to an embodiment of the utility model;

[0020] Figure 3 A schematic structural diagram of a connection assembly according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic structural diagram of an elastic member provided according to an embodiment of the present utility model is shown;

[0022] Figure 5 A schematic structural diagram of a fireproof layer provided according to an embodiment of the present utility model is shown;

[0023] Figure 6 Shows a schematic structural diagram of an installation frame provided according to an embodiment of the present utility model;

[0024] Figure 7 A schematic diagram of a local structure provided according to an embodiment of the present utility model is shown;

[0025] Figure 8Shows a structural schematic diagram of an intermediate plate assembly provided according to an embodiment of the present utility model;

[0026] Figure 9 A schematic structural diagram of a reinforcement bar provided according to the first embodiment of the present invention is shown;

[0027] Figure 10 A schematic structural diagram of the reinforcing ribs provided according to the second embodiment of the present invention is shown.

[0028] Legend:

[0029] 10. Install the frame; 11. Install the bolts; 12. Reinforce the frame; 13. Buffer pad;

[0030] 20. Core plate mechanism; 21. Intermediate plate assembly; 211. Explosion-proof steel plate; 212. Reinforcement ribs; 2121. First rib; 2122. Second rib; 22. Fireproof layer; 221. Fireproof board; 222. Rock wool; 23. Connecting assembly; 231. Connecting rod; 232. Positioning plate; 233. Threaded end; 234. Locking nut; 235. Elastic part; 2351. Rubber sleeve; 2352. Raised section. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] Reference Figures 1-9 The present embodiment provides a fire door core panel, including a mounting frame 10 and a core panel mechanism 20 arranged in the mounting frame 10. The core panel mechanism 20 includes an intermediate panel assembly 21. A fireproof layer 22 is provided on the intermediate panel assembly 21 through a connecting assembly 23 with a reinforcing and buffering function. The fireproof layer 22 includes a fireproof board 221, and rock wool 222 is provided on the fireproof board 221.

[0034] In the utility model, the core panel mechanism 20 is fixed by the installation frame 10, and the fireproof layer 22 is set on both sides of the middle plate component 21 of the core panel mechanism 20 through the connecting component 23. Fire protection is performed by the fireproof layer 22. The connecting component 23 has the function of reinforcement and buffering, and can disperse the impact force when the door core panel is impacted, thereby improving the stability of the door core panel. The fireproof layer 22 is composed of a double-layer fireproof board 221 and rock wool 222. The rock wool 222 is pressed between the double-layer fireproof board 221. The fireproof board 221 is made of fireproof gypsum board, and can effectively prevent fire in combination with the rock wool 222.

[0035] Specifically, such as Figure 2 、 Figure 8 and Figure 9 As shown, the middle plate assembly 21 includes two layers of explosion-proof steel plates 211 , and a reinforcing rib 212 is provided between the two layers of explosion-proof steel plates 211 . The reinforcing rib 212 includes a plurality of first ribs 2121 , and the plurality of first ribs 2121 are arranged in a crisscross pattern between the explosion-proof steel plates 211 .

[0036] Among them, the explosion-proof steel plate 211 has high strength and toughness, and can effectively resist the shock waves and fragments generated by the explosion. In emergency situations such as fire or explosion, the explosion-proof steel plate 211 can provide an additional protective barrier for the fire door, ensuring the integrity and stability of the door body. The reinforcing ribs 212 arranged in a criss-cross shape can provide additional support and reinforcement in both horizontal and vertical directions, thereby improving the stability of the intermediate plate assembly 21.

[0037] Specifically, such as Figure 2-Figure 4 As shown, the connecting assembly 23 includes a connecting rod 231 connected to the explosion-proof steel plate 211 through a positioning plate 232, and the connecting rod 231 is provided with a threaded end 233 that penetrates the fireproof layer 22, and the threaded end 233 is provided with a locking nut 234. The connecting assembly 23 also includes an elastic member 235 located between the explosion-proof steel plate 211 and the fireproof layer 22, and the elastic member 235 includes a rubber sleeve 2351 mounted on the connecting rod 231, and the middle position of the rubber sleeve 2351 protrudes outward to form a raised section 2352.

[0038] The connecting rod 231 is fixed to the explosion-proof steel plate 211 through the cooperation of the positioning plate 232 and the screw. The fixed connecting components 23 are arranged in an array. Bolt holes that cooperate with the threaded ends 233 are provided on the fireproof layer 22. The threaded ends 233 penetrate the fireproof layer 22 and are locked and fixed by the locking nuts 234. The connecting rods 231 arranged in an array cooperate with the elastic members 235 to disperse the impact force received by the fire door to multiple points, thereby avoiding local damage caused by stress concentration and helping to extend the service life of the door core board. In addition, the connecting rods 231 and the elastic members 235 arranged in an array can form a stable support structure between the double-layer boards, effectively preventing the door core board from deformation or displacement when subjected to external forces.

[0039] The annular raised section 2352 on the rubber sleeve 2351 can increase the contact area of ​​the rubber sleeve 2351 and can disperse the pressure of the rubber sleeve 2351 when the door core plate is impacted, thereby achieving a better buffering effect.

[0040] Specifically, such as Figure 1 、 Figure 6 and Figure 7 As shown, a reinforcement frame 12 is provided on the mounting frame 10 via mounting bolts 11 , and a buffer pad 13 is provided on the mounting bolts 11 at a position between the mounting frame 10 and the reinforcement frame 12 .

[0041] Among them, setting a U-shaped reinforcement frame 12 on the installation frame 10 can improve the stability of the installation frame 10, and thus improve the stability of the entire door core panel. Setting a flat buffer pad 13 on the installation bolts 11 for connecting the reinforcement frame 12 can effectively improve the stability of the core panel mechanism 20 in the horizontal and vertical directions of the installation frame 10.

[0042] Example 2

[0043] like Figure 10 As shown, different from the first embodiment, the reinforcing ribs 212 include a plurality of second ribs 2122, and the plurality of second ribs 2122 are arranged in a cross shape between the explosion-proof steel plates 211. The cross-shaped reinforcing ribs 212 form a plurality of triangular areas, thereby providing support in multiple directions on the plane, making the intermediate plate assembly 21 more stable.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire door core board, characterized in that: include: Mounting frame (10); And a core plate mechanism (20) arranged in the installation frame (10), the core plate mechanism (20) includes an intermediate plate assembly (21), and a fireproof layer (22) is provided on the intermediate plate assembly (21) via a connection assembly (23) with reinforcement and buffering functions.

2. A fire door core panel according to claim 1, characterized in that: The intermediate plate assembly (21) comprises two layers of explosion-proof steel plates (211), and a reinforcing rib (212) is provided between the two layers of explosion-proof steel plates (211).

3. A fire door core panel according to claim 2, characterized in that: The connecting assembly (23) includes a connecting rod (231) connected to the explosion-proof steel plate (211) through a positioning plate (232), and the connecting rod (231) is provided with a threaded end (233) penetrating the fireproof layer (22), and a locking nut (234) is provided on the threaded end (233).

4. A fire door core panel according to claim 3, characterized in that: The connecting assembly (23) further includes an elastic member (235) located between the explosion-proof steel plate (211) and the fireproof layer (22); The elastic member (235) comprises a rubber sleeve (2351) sleeved on the connecting rod (231), and a raised section (2352) is formed in the middle of the rubber sleeve (2351) protruding outward.

5. A fire door core panel according to claim 2 or 3, characterized in that: The fireproof layer (22) comprises a fireproof board (221), and rock wool (222) is arranged on the fireproof board (221).

6. The fire door core panel according to claim 1, characterized in that: A reinforcement frame (12) is provided on the installation frame (10) via an installation bolt (11), and a buffer pad (13) is provided on the installation bolt (11) at a position between the installation frame (10) and the reinforcement frame (12).

7. The fire door core panel according to claim 2, characterized in that: The reinforcing ribs (212) include a plurality of first ribs (2121), and the plurality of first ribs (2121) are arranged in a crisscross pattern between the explosion-proof steel plates (211).

8. The fire door core panel according to claim 2, characterized in that: The reinforcing ribs (212) include a plurality of second ribs (2122), and the plurality of second ribs (2122) are arranged in a cross shape between the explosion-proof steel plates (211).

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