Flame-retardant heat-insulation smoke-insulation steel fireproof door

Abstract

The utility model discloses a flame-retardant heat-insulation smoke-insulation steel fireproof door which comprises a fireproof door body, a sealing plate is fixedly installed on one side of the fireproof door body, a detachable limiting mechanism is arranged on the surface of the fireproof door body, and a height-adjustable sealing mechanism is arranged at the bottom of the fireproof door body. The sealing mechanism is used for preventing smoke from entering through the bottom of the fireproof door body. The fireproof door body can have a certain flame-retardant effect, the sealing mechanism capable of moving up and down can be fixedly installed below the fireproof door body, the sealing mechanism can make contact with the ground, and therefore the situation that smoke cannot be blocked when a fire disaster occurs can be prevented, and the fireproof door cannot be damaged. And the limiting mechanism is detachably arranged, so that the fireproof door body can be supported when the fireproof door body is inclined due to long-time use and cannot be normally closed, and normal opening and closing of the fireproof door body can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a flame-retardant, heat-insulating and smoke-proof steel fire door. Background Technique

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc. It is specifically used to isolate the fire source in building construction and plays a huge role in fire protection work. Once a fire occurs, people can obtain an escape opportunity through the fire door.

[0003] Existing fire doors are usually installed at the position of stairs during use. Generally, a smoking area is placed at the stair position, and security personnel often open and close the fire door, which may cause the fire door to be poorly sealed due to long-term opening and closing, thus being unable to resist smoke in time. And after the fire door is closed, there are usually gaps at the bottom due to the installation process, so it cannot completely block the smoke. For this reason, we propose a flame-retardant, heat-insulating and smoke-proof steel fire door. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flame-retardant, heat-insulating and smoke-proof steel fire door to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flame-retardant, heat-insulating and smoke-proof steel fire door, including a fire door body. A fire window is penetrated through the surface of the fire door body. A door lock is arranged on the surface of the fire door body. A sealing plate is fixedly installed on one side of the fire door body. A detachable limiting mechanism is arranged on the surface of the fire door body. A height-adjustable sealing mechanism is arranged at the bottom of the fire door body, and the sealing mechanism is used to prevent smoke from entering through the bottom of the fire door body.

[0006] Further, the fire door body includes a door body, an inner skeleton, a fireproof perlite board and a sealing strip. The inner skeleton is fixedly installed inside the door body. The fireproof perlite board is fixedly installed inside the fire door body. The sealing strip is arranged around the fireproof perlite board inside the door body.

[0007] Further, the sealing mechanism includes a waist-shaped groove, a connecting frame, a clamping groove, a locking bolt, an installation groove and a blocking strip. Three waist-shaped grooves are penetrated and opened below the fire door body. The top of the connecting frame is provided with a clamping groove that fits with the bottom of the fire door body. The locking bolt is arranged on the surface of the connecting frame corresponding to the position of the waist-shaped groove. The bottom of the connecting frame is provided with an installation groove, and a blocking strip is clamped inside the installation groove.

[0008] Furthermore, a moving groove is formed on the surface of the connecting frame corresponding to the position of the installation groove, and a driving groove is formed on one side of the barrier strip corresponding to the position of the moving groove.

[0009] Furthermore, the limiting mechanism includes a threaded groove, a first threaded rod, a threaded sleeve, a second threaded rod, and a universal wheel. A threaded groove is formed on one side of the fire door body. The first threaded rod is threadedly connected inside the threaded groove. A threaded sleeve is fixedly connected to one side of the first threaded rod. The second threaded rod is threadedly connected inside the threaded sleeve. A knob is fixedly installed at the top of the second threaded rod. A universal wheel is arranged at the bottom of the second threaded rod.

[0010] Furthermore, the manufacturing material of the barrier strip is rubber material, and a sealing gasket made of rubber material is arranged on one side of the sealing plate.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: The fire door body provided by the present utility model can have a certain flame retardant effect. The vertically movable sealing mechanism can be fixedly installed below the fire door body, so that the sealing mechanism can be in contact with the ground, thereby preventing the smoke from being blocked when a fire occurs. The limiting mechanism is detachably arranged. Such an arrangement can support the fire door body when the fire door body is tilted and cannot be normally closed due to long-term use, thereby ensuring that the fire door body can be normally opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0013] Figure 2 is a schematic front sectional structure diagram of the fire door body of the present utility model;

[0014] Figure 3 is a schematic three-dimensional structure diagram of the fire door body of the present utility model;

[0015] Figure 4 is a schematic three-dimensional structure diagram of the sealing strip of the present utility model;

[0016] Figure 5 is an enlarged schematic diagram of structure A of the present utility model.

[0017] In the figure: 1 fire door body, 2 fire window, 3 door lock, 4 sealing plate, 5 limiting mechanism, 6 sealing mechanism, 7 door body, 8 inner skeleton, 9 fireproof perlite board, 10 sealing rubber strip, 11 waist-shaped groove, 12 connecting frame, 13 engaging groove, 14 locking bolt, 15 installation groove, 16 barrier strip, 17 moving groove, 18 driving groove, 19 threaded groove, 20 first threaded rod, 21 threaded sleeve, 22 second threaded rod, 23 knob, 24 universal wheel. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-5 , the present invention provides a technical solution: a flame-retardant, heat-insulating and smoke-proof steel fire door, including a fire door body 1, a fire window 2 is penetrated through the surface of the fire door body 1, a door lock 3 is arranged on the surface of the fire door body 1, a sealing plate 4 is fixedly installed on one side of the fire door body 1, a detachable limiting mechanism 5 is arranged on the surface of the fire door body 1, and a height-adjustable sealing mechanism 6 is arranged at the bottom of the fire door body 1. The sealing mechanism 6 is used to prevent smoke from entering through the bottom of the fire door body 1.

[0020] Among them, the provided fire door body 1 can have a certain flame-retardant effect, and the provided sealing mechanism 6 that can move up and down can be fixedly installed below the fire door body 1, so that the sealing mechanism 6 can contact the ground, thereby preventing the smoke from being blocked during a fire. The provided limiting mechanism 5 is detachably arranged. Such a setting can support the fire door body 1 when the fire door body 1 is tilted and cannot be normally closed due to long-term use, so as to ensure that the fire door body 1 can be normally opened and closed.

[0021] Please refer to Figure 1 and Figure 2 , the fire door body 1 includes a door body 7, an inner skeleton 8, a fireproof perlite board 9 and a sealing strip 10. An inner skeleton 8 is fixedly installed inside the door body 7, a fireproof perlite board 9 is fixedly installed inside the fire door body 1, and a sealing strip 10 is arranged around the fireproof perlite board 9 inside the door body 7.

[0022] Among them, the provided inner skeleton 8 can increase the rigidity of the fire door body 1, and the provided fireproof perlite board 9 has a certain flame-retardant and heat-insulating effect. The fireproof perlite board 9 is installed through the sealing strip 10, which can ensure that the fireproof perlite board 9 is completely attached to the inside of the door body 7.

[0023] Please refer to Figure 1 , Figure 3 and Figure 4, the sealing mechanism 6 includes a waist-shaped groove 11, a connecting frame 12, a clamping groove 13, a locking bolt 14, a mounting groove 15 and a barrier strip 16. Three waist-shaped grooves 11 are penetrated and opened below the fire door body 1. The top of the connecting frame 12 is provided with a clamping groove 13 that fits the bottom of the fire door body 1. The surface of the connecting frame 12 is provided with a locking bolt 14 corresponding to the position of the waist-shaped groove 11. The bottom of the connecting frame 12 is provided with a mounting groove 15, and a barrier strip 16 is clamped inside the mounting groove 15. A moving groove 17 is opened on the surface of the connecting frame 12 corresponding to the position of the mounting groove 15, and a driving groove 18 is opened on one side of the barrier strip 16 corresponding to the position of the moving groove 17.

[0024] Among them, first place the barrier strip 16 inside the mounting groove 15. During installation, first insert one end of the barrier strip 16 into the mounting groove 15, and then insert a long tool such as a screwdriver into the driving groove 18. Then, the barrier strip 16 can be pulled to move along the moving groove 17 for installation. Then, align the clamping groove 13 at the top of the connecting frame 12 with the bottom of the fire door body 1 and insert it. Then, make the bottom of the barrier strip 16 contact the ground, and then insert the locking bolt 14 into the waist-shaped groove 11 to complete the installation and fixation of the barrier strip 16. The setting of the waist-shaped groove 11 can adjust the height of the barrier strip 16, so that the barrier strip 16 can always contact the ground.

[0025] Please refer to Figure 1 and Figure 5 , the limiting mechanism 5 includes a threaded groove 19, a first threaded rod 20, a threaded sleeve 21, a second threaded rod 22 and a universal wheel 24. A threaded groove 19 is opened on one side of the fire door body 1. The first threaded rod 20 is threadedly connected inside the threaded groove 19. A threaded sleeve 21 is fixedly connected to one side of the first threaded rod 20. The second threaded rod 22 is threadedly connected inside the threaded sleeve 21. A knob 23 is fixedly installed at the top of the second threaded rod 22, and a universal wheel 24 is arranged at the bottom of the second threaded rod 22.

[0026] Among them, when one side of the fire door body 1 is tilted, thread the first threaded rod 20 into the threaded groove 19, and then rotate the knob 23 and the second threaded rod 22 to move up and down along the threaded sleeve 21, so that the universal wheel 24 can contact the ground. In this way, the tilted fire door body 1 can be supported by the universal wheel 24, which can ensure that the fire door body 1 can be opened and closed normally.

[0027] Please refer to Figure 1, the manufacturing material of the barrier strip 16 is rubber material, and a gasket made of rubber material is provided on one side of the sealing plate 4. Among them, the barrier strip 16 made of rubber material has a certain elasticity to ensure that it always fits the ground, and the gasket provided on one side of the sealing plate 4 can prevent the flue gas from leaking out through the gap between the fire door body 1 and the door frame.

[0028] During use, first of all, the set inner skeleton 8 can increase the rigidity of the fire door body 1, and the set fireproof perlite board 9 has a certain fire retardant and heat insulation effect. Moreover, the fireproof perlite board 9 is installed through the sealing rubber strip 10, which can ensure that the fireproof perlite board 9 is completely attached to the inside of the door body 7. When installing the sealing mechanism 6, first place the barrier strip 16 inside the installation groove 15. During installation, first insert one end of the barrier strip 16 into the installation groove 15, and then insert a long strip tool such as a screwdriver into the driving groove 18. Then, the barrier strip 16 can be pulled to move along the moving groove 17 for installation. Subsequently, align the engaging groove 13 at the top of the connecting frame 12 with the bottom of the fire door body 1 and insert it. Then, make the bottom of the barrier strip 16 contact the ground, and then insert the locking bolt 14 into the kidney-shaped groove 11 to complete the installation and fixation of the barrier strip 16. The setting of the kidney-shaped groove 11 can adjust the height of the barrier strip 16, so that the barrier strip 16 can always contact the ground. When one side of the fire door body 1 is tilted, thread the first threaded rod 20 into the threaded groove 19, and then rotate the knob 23 and the second threaded rod 22 to move up and down along the threaded sleeve 21, so that the universal wheel 24 can contact the ground. In this way, the tilted fire door body 1 can be supported by the universal wheel 24, ensuring that the fire door body 1 can be opened and closed normally.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant, heat-insulating and smoke-insulating steel fireproof door, comprising a fireproof door body (1), a fireproof window (2) penetrating the surface of the fireproof door body (1), and a door lock (3) disposed on the surface of the fireproof door body (1), characterized in that: A sealing plate (4) is fixedly mounted on one side of the fire door body (1); a detachable limiting mechanism (5) is provided on the surface of the fire door body (1); and a height-adjustable sealing mechanism (6) is provided at the bottom of the fire door body (1); the sealing mechanism (6) is used to prevent smoke from entering through the bottom of the fire door body (1); The fire door body (1) comprises a door body (7), an inner frame (8), a fireproof perlite board (9) and a sealing strip (10); the inner frame (8) is fixedly installed inside the door body (7); the fireproof perlite board (9) is fixedly installed inside the fire door body (1); and the sealing strip (10) is arranged inside the door body (7) and around the fireproof perlite board (9); The sealing mechanism (6) comprises a waist-shaped groove (11), a connecting frame (12), a snap-fit ​​groove (13), a locking bolt (14), a mounting groove (15) and a barrier strip (16); three groups of waist-shaped grooves (11) are provided through the bottom of the fire door body (1); a snap-fit ​​groove (13) which is fitted with the bottom of the fire door body (1) is provided on the top of the connecting frame (12); a locking bolt (14) is provided on the surface of the connecting frame (12) at a position corresponding to the waist-shaped groove (11); a mounting groove (15) is provided at the bottom of the connecting frame (12); and a barrier strip (16) is clamped inside the mounting groove (15).

2. The flame-retardant, heat-insulating and smoke-insulating steel fireproof door according to claim 1, characterized in that: A movable groove (17) is provided on the surface of the connecting frame (12) at a position corresponding to the mounting groove (15), and a driving groove (18) is provided on one side of the barrier strip (16) at a position corresponding to the movable groove (17).

3. The flame retardant, heat-insulating and smoke-insulating steel fire door according to claim 2, characterized in that: The limiting mechanism (5) comprises a thread groove (19), a first threaded rod (20), a threaded sleeve (21), a second threaded rod (22) and a universal wheel (24); a thread groove (19) is provided on one side of the fire door body (1); the first threaded rod (20) is connected to the inner thread of the thread groove (19); a threaded sleeve (21) is fixedly connected to one side of the first threaded rod (20); the second threaded rod (22) is connected to the inner thread of the threaded sleeve (21); a knob (23) is fixedly mounted on the top of the second threaded rod (22); and a universal wheel (24) is provided on the bottom of the second threaded rod (22).

4. The flame retardant, heat-insulating and smoke-insulating steel fire door according to claim 3, characterized in that: The barrier strip (16) is made of rubber material, and a sealing pad made of rubber material is provided on one side of the sealing plate (4).

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