Steel fireproof door

Abstract

The utility model discloses a steel fireproof door, which belongs to the technical field of fireproof doors and comprises a door frame, a fireproof door main body is movably hinged in the door frame, a second mounting groove is arranged on the fireproof door main body, a fireproof partition plate is movably inserted in the second mounting groove, and a sealing plate is detachably connected in the second mounting groove. The fireproof partition plate comprises a first heat insulation layer, a flame retardant layer and a second heat insulation layer, when the fireproof partition plate needs to be replaced, the sealing plate is detached from the second installation groove, then the fireproof partition plate is taken out from the second installation groove, and the second installation groove and the fireproof partition plate are installed in a clamped mode. And then the fireproof partition plates are fixed through the sealing plates, when the sealing plates or the fireproof partition plates are damaged, corresponding replacement can be carried out, the problem of overall replacement is solved, and the use cost is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, and more specifically, to a steel fire door. Background Art

[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, and is usually used at the entrance of stairs in buildings. A normally closed fire door can effectively prevent the fire in the corridor from spreading to other floors during a fire.

[0003] Some patent documents of steel fire doors are disclosed in the prior art. The Chinese patent with the application number CN202221959242.X discloses a steel fire door, which includes a door frame, a door body, a limiting component for restricting the opening of the door body, and a power component for driving the limiting component to work; the door body is rotatably connected to the inner wall of the bottom of the door frame; the limiting component includes a cavity opened inside the door body, and a horizontally arranged piston plate is slidably connected to the inner wall of the cavity. A plurality of equally spaced bolts are fixedly connected to the outer wall of the bottom of the piston plate. When the temperature in the corridor is relatively high, the utility model can realize the heat conduction between the outside of the door body and the inside of the cavity through the first heat conducting sheet, the connecting seat, and the second heat conducting sheet, heat the thermally expandable gas. After the thermally expandable gas is heated, the pressure in the space above the piston plate in the cavity rises, pushing the piston plate to descend, and then driving the bolts to enter the fixing holes on the door frame to realize the locking of the door body.

[0004] In the above patent, the fire door has an integrated design. When it is damaged by external forces other than fire, it needs to be replaced as a whole, and its use cost is relatively high. Therefore, we propose a steel fire door. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a steel fire door. When the fireproof partition needs to be replaced, the sealing plate is removed from the second installation groove, and then the fireproof partition is taken out from the second installation groove. The second installation groove and the fireproof partition are installed by snap connection, and then the fireproof partition is fixed by the sealing plate. When the sealing plate or the fireproof partition is damaged, corresponding replacement can be carried out, preventing the problem of overall replacement and optimizing the use cost.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions:

[0009] A steel fire door includes a door frame. A fire door main body is movably hinged inside the door frame. A second installation groove is formed in the fire door main body. A fire partition is movably inserted into the second installation groove. A sealing plate is detachably connected in the second installation groove.

[0010] As a preferred solution of the present utility model, the fire partition includes a first heat insulation layer, a flame retardant layer and a second heat insulation layer. The first heat insulation layer, the flame retardant layer and the second heat insulation layer are arranged in sequence from front to back, and are fixedly connected between the first heat insulation layer, the flame retardant layer and the second heat insulation layer.

[0011] As a preferred solution of the present utility model, a plurality of positioning rods are fixedly connected in the second installation groove. A plurality of positioning holes are formed in the fire partition. The plurality of positioning holes are clamped with the plurality of positioning rods.

[0012] As a preferred solution of the present utility model, each of the positioning rods and the positioning holes is provided with four, and the positioning rods and the positioning holes are arranged at the four corners of the second installation groove.

[0013] As a preferred solution of the present utility model, a first installation groove is formed in the door frame. A fireproof sealing strip is fixedly connected to the fire door main body. The fireproof sealing strip is clamped in the first installation groove.

[0014] As a preferred solution of the present utility model, a handle is fixedly connected to the fire door main body.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] (1) In this solution, when the fire partition needs to be replaced, first remove the sealing plate from the second installation groove, and then take out the fire partition from the second installation groove. The second installation groove and the fire partition are installed by clamping, and then the fire partition is fixed by the sealing plate. When the sealing plate or the fire partition is damaged, corresponding replacement can be carried out, preventing the problem of overall replacement and optimizing the use cost.

[0018] (2) In this solution, through the cooperation of the first heat insulation layer, the flame retardant layer and the second heat insulation layer, it is convenient for the fire door main body to prevent fire, and both the fire door main body and the sealing plate are made of galvanized steel sheets, and their fire prevention effects are good. Description of the drawings

[0019] Figure 1 is the front view three-dimensional drawing of the present utility model;

[0020] Figure 2 is the overall exploded view of the present utility model;

[0021] Figure 3 Schematic diagram of the main body of the fire door of the present utility model;

[0022] Figure 4 Internal schematic diagram of the fire partition of the present utility model.

[0023] Description of the reference numerals in the figure:

[0024] 1. Door frame; 2. First installation groove; 3. Main body of the fire door; 4. Handle; 5. Fireproof sealing strip; 6. Second installation groove; 7. Sealing plate; 8. Positioning rod; 9. Fire partition; 901. First heat insulation layer; 902. Flame retardant layer; 903. Second heat insulation layer; 10. Positioning hole. Specific embodiments

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment:

[0027] Please refer to Figures 1-4 , a steel fire door, including a door frame 1, a main body of the fire door 3 is movably hinged inside the door frame 1, a second installation groove 6 is opened on the main body of the fire door 3, a fire partition 9 is movably inserted into the second installation groove 6, and a sealing plate 7 is detachably connected in the second installation groove 6.

[0028] In this embodiment, the main body of the fire door 3 and the door frame 1 are hinged by a hinge. The second installation groove 6 is opened to facilitate the installation of the fire partition 9. The fire partition 9 is for fire prevention, and the sealing plate 7 is for sealing the second installation groove 6. When the fire partition 9 needs to be replaced in the present utility model, the sealing plate 7 is removed from the second installation groove 6, and then the fire partition 9 is taken out from the second installation groove 6. The second installation groove 6 and the fire partition 9 are installed by clamping, and then the fire partition 9 is fixed by the sealing plate 7. When the sealing plate 7 or the fire partition 9 is damaged, corresponding replacement can be carried out, preventing the problem of overall replacement and optimizing the use cost.

[0029] Specifically, the fire partition 9 includes a first heat insulation layer 901, a flame retardant layer 902 and a second heat insulation layer 903. The first heat insulation layer 901, the flame retardant layer 902 and the second heat insulation layer 903 are arranged in sequence from front to back, and are fixedly connected between the first heat insulation layer 901, the flame retardant layer 902 and the second heat insulation layer 903.

[0030] In this embodiment, the fire partition 9 includes a first heat insulation layer 901, a flame retardant layer 902, and a second heat insulation layer 903. The first heat insulation layer 901, the flame retardant layer 902, and the second heat insulation layer 903 are arranged in sequence from front to back, and are fixedly connected between the first heat insulation layer 901, the flame retardant layer 902, and the second heat insulation layer 903.

[0031] Specifically, a plurality of positioning rods 8 are fixedly connected in the second installation groove 6, and a plurality of positioning holes 10 are formed in the fire partition 9. The plurality of positioning holes 10 are clamped with the plurality of positioning rods 8.

[0032] In this embodiment, the fixing of the positioning rod 8 is for facilitating the clamping with the positioning hole 10, and the fire partition 9 is positioned by the clamping of the positioning rod 8 and the positioning hole 10.

[0033] Specifically, each of the positioning rods 8 and the positioning holes 10 is provided with four, and the positioning rods 8 and the positioning holes 10 are arranged at the four corners of the second installation groove 6.

[0034] In this embodiment, each of the positioning rods 8 and the positioning holes 10 is provided with four, and the positioning rods 8 and the positioning holes 10 are arranged at the four corners of the second installation groove 6.

[0035] Specifically, a first installation groove 2 is formed in the door frame 1, and a fireproof sealing strip 5 is fixedly connected to the fireproof door body 3. The fireproof sealing strip 5 is clamped in the first installation groove 2.

[0036] In this embodiment, the formation of the first installation groove 2 is for facilitating the clamping with the fireproof sealing strip 5, and the fireproof sealing strip 5 is for preventing the penetration of thick smoke.

[0037] Specifically, a handle 4 is fixedly connected to the fireproof door body 3.

[0038] In this embodiment, a handle 4 is fixedly connected to the fireproof door body 3, and the handle 4 facilitates pulling the fireproof door body 3.

[0039] Working principle: When the fire partition 9 needs to be replaced, first remove the sealing plate 7 from the second installation groove 6, and then take out the fire partition 9 from the second installation groove 6. The second installation groove 6 and the fire partition 9 are installed by clamping, and then the fire partition 9 is fixed by the sealing plate 7. When the sealing plate 7 or the fire partition 9 is damaged, the corresponding replacement can be carried out, preventing the problem of overall replacement, optimizing the use cost. Through the cooperation of the first heat insulation layer 901, the flame retardant layer 902, and the second heat insulation layer 903, it is convenient for the fireproof door body 3 to prevent fire, and both the fireproof door body 3 and the sealing plate 7 are made of galvanized steel plates, and their fireproof effects are good.

[0040] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A steel fire door, comprising a door frame (1), characterized in that: A fire door main body (3) is movably hinged inside the door frame (1). A second installation groove (6) is formed in the fire door main body (3). A fire partition board (9) is movably inserted into the second installation groove (6). A sealing plate (7) is detachably connected in the second installation groove (6).

2. The steel fire door according to claim 1, wherein: The fire partition board (9) includes a first heat insulation layer (901), a flame retardant layer (902) and a second heat insulation layer (903). The first heat insulation layer (901), the flame retardant layer (902) and the second heat insulation layer (903) are arranged in sequence from front to back, and are fixedly connected between the first heat insulation layer (901), the flame retardant layer (902) and the second heat insulation layer (903).

3. The steel fire door according to claim 2, wherein: A plurality of positioning rods (8) are fixedly connected in the second installation groove (6). A plurality of positioning holes (10) are formed in the fire partition board (9). The plurality of positioning holes (10) are clamped with the plurality of positioning rods (8).

4. A steel fire door according to claim 3, characterized in that: Each of the positioning rods (8) and the positioning holes (10) is provided with four, and the positioning rods (8) and the positioning holes (10) are arranged at the four corners of the second installation groove (6).

5. A steel fire door according to claim 4, characterized in that: A first installation groove (2) is formed in the door frame (1). A fireproof sealing strip (5) is fixedly connected to the fire door main body (3). The fireproof sealing strip (5) is clamped in the first installation groove (2).

6. The steel fire door according to claim 5, characterized in that: A handle (4) is fixedly connected to the fire door main body (3).

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