Heat insulation steel fireproof door

Abstract

The utility model provides a heat insulation steel fireproof door, and belongs to the technical field of fireproof doors. Comprising a fireproof door body, rectangular openings are formed in the center lines of the outer walls of the four sides of the fireproof door body, sliding plates are slidably connected to the inner walls of the four rectangular openings, a circular groove is formed in the outer wall of one side of the fireproof door body, a driving disc is rotatably connected to the inner wall of the circular groove, and the four rectangular openings communicate with the circular groove; four connecting plates are rotationally connected to the outer wall of the driving disc, one ends of the four connecting plates are rotationally connected to the four sliding plates correspondingly, a connecting groove is formed in the inner wall of the circular groove, and an adjusting assembly is arranged on the inner wall of the connecting groove. According to the fireproof door, the four sliding plates are arranged on the fireproof door body and inserted into the door frame, so that the stability of the fireproof door is guaranteed, the situation that the fireproof door is broken due to explosion impact is avoided, and the stability of the fireproof door is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof doors, in particular to a heat-insulating steel fireproof door. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with a certain degree of fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc. Existing fire doors are mainly connected by hinges, but when a fire occurs, the hinged fire doors will affect their stability. If an explosion occurs, the protective door cannot withstand the impact of the explosion.

[0003] After searching, for example, a Chinese patent document discloses a heat-insulating steel fire door [Application number: CN202021450188.7; Publication number: CN213743069U]. It includes a door frame, a door body, a lower slider, an upper slider and a heat insulation board. The door frame is movably connected to the door body, a heat insulation board is arranged inside the door body, a screw rod is movably connected to the door body in front of the heat insulation board, and the upper and lower parts of the screw rod are movably connected to the upper slider and the lower slider respectively. A top groove is provided on the door frame above the upper slider, and the gap between the top groove and the upper slider is matched, so that the upper slider can smoothly enter the top groove. A bottom groove is provided on the door frame below the lower slider, and the gap between the bottom groove and the lower slider is matched, so that the lower slider can smoothly enter the bottom groove. A worm wheel is sleeved and fixed in the middle position of the screw rod, and a worm is meshed and connected to one side of the worm wheel, and the front end of the worm is fixedly connected to the handwheel outside the door frame.

[0004] Although the slider and top groove disclosed in the patent can assist in fixing the fire door by inserting the slider into the top groove, only two sliders are provided in the above patent, and the two sides of the fire door are still connected by hinges. Different connection methods will affect the stability of the fire door.

[0005] Based on this, we propose an insulated steel fire door. Utility Model Content

[0006] The purpose of the utility model is to address the above-mentioned problems in the prior art and to propose a heat-insulating steel fire door. The technical problem to be solved by the utility model is: how to achieve stable fixation of the fire door, thereby improving the stability of the fire door.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A heat-insulating steel fire door comprises a fire door body, wherein rectangular openings are provided at the midlines of the outer walls on four sides of the fire door body, and the inner walls of the four rectangular openings are slidably connected to sliding plates, a circular groove is provided on the outer wall on one side of the fire door body, and the inner wall of the circular groove is rotatably connected to a driving disk, the four rectangular openings are communicated with the circular groove, the outer wall of the driving disk is rotatably connected to four connecting plates, and one end of the four connecting plates is rotatably connected to the four sliding plates respectively, a connecting groove is provided on the inner wall of the circular groove, and an adjustment component is arranged on the inner wall of the connecting groove.

[0009] The working principle of the utility model is: by arranging four sliding plates on the fire door body, the stability of the fire door is improved when the sliding plates are inserted into the door frame, and the cooperation between the driving disk and the connecting plate facilitates the movement of the sliding plates by the rotation of the driving disk.

[0010] The adjustment assembly comprises a driving seat, and the driving seat is slidably connected to the inner wall of the connecting groove.

[0011] With the above structure, the driving seat is located inside the circular groove.

[0012] One end of the driving seat is fixedly connected with an arc-shaped rack, and one end of the driving disc transmission shaft is fixedly connected with a gear, and the gear and the arc-shaped rack are meshed with each other.

[0013] With the above structure, the arc-shaped rack on the driving seat is meshed with the gear, thereby conveniently limiting the rotation of the driving disk.

[0014] The inner wall of the connecting groove is fixedly connected with two telescopic rods, and the outer walls of the two telescopic rods are sleeved with springs.

[0015] With the above structure, the telescopic rod and the spring are combined to form a spring rod.

[0016] One end of the two telescopic rods is fixedly connected to the driving seat, and a strip opening is opened on one side outer wall of the fire door body.

[0017] With the above structure, the driving seat is supported by the spring rod, so that the arc-shaped rack and the gear are easily meshed.

[0018] The strip-shaped opening is communicated with the connecting groove, and the inner wall of the strip-shaped opening is slidably connected with a sliding seat.

[0019] With the above structure, the sliding seat can slide easily through the arrangement of the strip-shaped opening.

[0020] The sliding seat is fixedly connected to the driving seat, the inner wall of the circular groove is fixedly connected to a cover plate, one side outer wall of the cover plate is rotatably connected to a rotating disk, and one end of the rotating disk transmission shaft is fixedly connected to the driving disk.

[0021] With the above structure, the driving disk can be directly driven to rotate by the setting of the rotating disk.

[0022] The fireproof door body comprises a door base, and outer walls on both sides of the door base are fixedly connected with heat insulation boards.

[0023] With the above structure, the provision of the heat insulation board improves the heat insulation performance of the fire door.

[0024] Compared with the prior art, this thermal insulation steel fire door has the following advantages:

[0025] 1. This heat-insulating steel fire door has four sliding plates arranged on the fire door body, which are inserted into the door frame through the four sliding plates, thereby ensuring the stability of the fire door and preventing the fire door from being broken by the impact of the explosion, thereby improving the stability of the fire door.

[0026] 2. The heat-insulating steel fire door has two heat-insulating plates arranged on the fire door body. The arrangement of the heat-insulating plates improves the heat-insulating performance of the fire door. The arrangement of the rotating disk facilitates the manual rotation of the driving disk. When the driving disk rotates, it is convenient to drive the sliding plate to move through the connecting plate. The matching between the arc-shaped rack and the gear is arranged in the circular groove, which facilitates the restriction of the rotation of the driving disk and avoids the sliding of the sliding seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 It is a schematic diagram of the structure inside the fire door of the utility model.

[0029] Figure 3 It is a structural schematic diagram of the rotating disk in the utility model.

[0030] Figure 4 It is a structural schematic diagram of a partial cross-section of the fire door body in the utility model.

[0031] In the figure, 1. fire door body; 2. sliding plate; 3. strip-shaped opening; 4. sliding seat; 5. cover plate; 6. rotating disk; 7. circular groove; 8. driving disk; 9. gear; 10. arc-shaped rack; 11. driving seat; 12. connecting plate; 13. telescopic rod; 14. spring; 15. door base; 16. heat insulation board. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1-Figure 4As shown, the thermally insulating steel fire door comprises a fire door body 1, rectangular openings are opened at the midlines of the four side outer walls of the fire door body 1, and the inner walls of the four rectangular openings are slidably connected with sliding plates 2, a circular groove 7 is opened on the outer wall of one side of the fire door body 1, and the inner wall of the circular groove 7 is rotatably connected with a driving disk 8, the four rectangular openings are all connected to the circular groove 7, the outer wall of the driving disk 8 is rotatably connected with four connecting plates 12, and one ends of the four connecting plates 12 are rotatably connected to the four sliding plates 2 respectively, the inner wall of the circular groove 7 is opened with a connecting groove, and the inner wall of the connecting groove is provided with an adjusting component.

[0034] In this embodiment, by arranging four sliding plates 2 on the fire door body 1, the stability of the fire door is improved when the sliding plates 2 are inserted into the door frame. Through the cooperation between the driving disk 8 and the connecting plate 12, the sliding plates 2 can be conveniently driven to move by the rotation of the driving disk 8.

[0035] The adjustment assembly includes a driving seat 11, and the driving seat 11 is slidably connected to the inner wall of the connecting groove.

[0036] In this embodiment, the driving seat 11 is located inside the circular groove 7 .

[0037] An arc-shaped rack 10 is fixedly connected to one end of the driving seat 11, and a gear 9 is fixedly connected to one end of the transmission shaft of the driving disc 8. The gear 9 and the arc-shaped rack 10 are meshed with each other.

[0038] In this embodiment, the arc-shaped rack 10 on the driving seat 11 is meshed with the gear 9, thereby conveniently limiting the rotation of the driving disk 8.

[0039] Two telescopic rods 13 are fixedly connected to the inner wall of the connecting groove, and springs 14 are sleeved on the outer walls of the two telescopic rods 13 .

[0040] In this embodiment, the telescopic rod 13 and the spring 14 are combined to form a spring rod.

[0041] One end of the two telescopic rods 13 is fixedly connected to the driving seat 11 , and a strip opening 3 is formed on one side outer wall of the fire door body 1 .

[0042] In this embodiment, the driving seat 11 is supported by a spring rod, so as to facilitate the meshing of the arc-shaped rack 10 and the gear 9 .

[0043] The strip-shaped opening 3 is communicated with the connecting groove, and the inner wall of the strip-shaped opening 3 is slidably connected with a sliding seat 4 .

[0044] In this embodiment, the strip-shaped opening 3 is provided to facilitate the sliding of the sliding seat 4 .

[0045] The sliding seat 4 is fixedly connected to the driving seat 11 , the inner wall of the circular groove 7 is fixedly connected to the cover plate 5 , the outer wall of one side of the cover plate 5 is rotatably connected to the rotating disk 6 , and one end of the transmission shaft of the rotating disk 6 is fixedly connected to the driving disk 8 .

[0046] In this embodiment, the driving disk 8 is directly driven to rotate by the arrangement of the rotating disk 6 .

[0047] The fire door body 1 comprises a door base 15 , and heat insulation boards 16 are fixedly connected to the outer walls on both sides of the door base 15 .

[0048] In this embodiment, the provision of the heat insulation board 16 improves the heat insulation performance of the fire door.

[0049] The working principle of the utility model is as follows: when in use, when a fire occurs, first pull the driving seat 11 to move through the sliding seat 4. When the driving seat 11 moves, it is convenient to directly pull the arc rack 10 away from the gear 9. At this time, the rotating disk 6 is rotated. When the rotating disk 6 rotates, it directly drives the driving disk 8 to rotate. When the driving disk 8 rotates counterclockwise, it is convenient to push the sliding plate 2 out through the connecting plate 12, and the sliding plate 2 is inserted into the door frame, thereby improving the stability of the fire door. At this time, release the spring 14 on the telescopic rod 13 of the sliding seat 4 to facilitate the direct driving of the arc rack 10 and the gear 9 to engage.

[0050] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A heat-insulating steel fire door, comprising a fire door body (1), characterized in that: The fire door body (1) is provided with rectangular openings at the center lines of the four side outer walls, and the inner walls of the four rectangular openings are slidably connected to sliding plates (2); a circular groove (7) is provided on one side outer wall of the fire door body (1), and the inner wall of the circular groove (7) is rotatably connected to a driving disk (8); the four rectangular openings are connected to the circular groove (7); the outer wall of the driving disk (8) is rotatably connected to four connecting plates (12), and one end of the four connecting plates (12) is rotatably connected to the four sliding plates (2), respectively; a connecting groove is provided on the inner wall of the circular groove (7), and an adjustment component is arranged on the inner wall of the connecting groove.

2. A heat-insulating steel fire door according to claim 1, characterized in that: The adjustment assembly comprises a driving seat (11), and the driving seat (11) is slidably connected to the inner wall of the connecting groove.

3. A heat-insulating steel fire door according to claim 2, characterized in that: One end of the driving seat (11) is fixedly connected to an arc-shaped rack (10), and one end of the transmission shaft of the driving disc (8) is fixedly connected to a gear (9), and the gear (9) and the arc-shaped rack (10) are meshed with each other.

4. The heat-insulating steel fire door according to claim 3, characterized in that: Two telescopic rods (13) are fixedly connected to the inner wall of the connection groove, and springs (14) are sleeved on the outer walls of the two telescopic rods (13).

5. The heat-insulating steel fire door according to claim 4, characterized in that: One end of the two telescopic rods (13) is fixedly connected to the driving seat (11), and a strip-shaped opening (3) is provided on one side outer wall of the fire door body (1).

6. The heat-insulating steel fire door according to claim 5, characterized in that: The strip-shaped opening (3) is communicated with the connecting groove, and the inner wall of the strip-shaped opening (3) is slidably connected with a sliding seat (4).

7. The heat-insulating steel fire door according to claim 6, characterized in that: The sliding seat (4) is fixedly connected to the driving seat (11); the inner wall of the circular groove (7) is fixedly connected to a cover plate (5); an outer wall on one side of the cover plate (5) is rotatably connected to a rotating disk (6); and one end of a transmission shaft of the rotating disk (6) is fixedly connected to the driving disk (8).

8. The heat-insulating steel fire door according to claim 7, characterized in that: The fire door body (1) comprises a door base (15), and both side outer walls of the door base (15) are fixedly connected with heat insulation boards (16).

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