Reflection type heat insulation fireproof door

Abstract

The utility model discloses a reflection type heat insulation fireproof door which comprises a door frame, the left side of the door frame is rotationally connected with a first door body, the front portion of the first door body is rotationally connected with a rotary knob, the rear portion of the rotary knob is fixedly connected with a driving bevel gear, and the right side of the door frame is rotationally connected with a second door body. A rotating handle is rotatably connected to the front of the second door body, a fireproof plate is fixedly connected to the rear of the first door body, a fireproof plate is fixedly connected to the rear of the second door body, and first inserting holes are formed in the upper side and the lower side of the left side of the door frame. By means of the structure, flames can be isolated, meanwhile, most of heat is isolated outside in a reflection mode, the phenomenon that objects outside the door catch fire due to the too high temperature is prevented, the door body is not prone to being burst open by heat waves when facing the flame detonation condition, it is ensured that the door body can block most of the heat waves inside, and the service life of the door body is prolonged. And the effective flame-retardant time of the door body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a reflective heat-insulating fire door. Background Art

[0002] A fire door is a door specifically designed to prevent the spread of fire for a specified period of time. They are typically installed in key locations within a building, such as stairwells, elevator vestibules, and corridors, to ensure sufficient time for evacuation in the event of a fire and minimize property damage. The main features of fire doors include: Fire resistance: Depending on the specific requirements of use, fire doors have different fire resistance ratings, such as Class A (90 minutes) and Class B (60 minutes), indicating that the door can maintain its integrity and prevent flames from penetrating for a specified period of time. Materials: Fire doors are often made of non-combustible or flame-retardant materials, such as steel and specially treated wood, and are filled with insulating materials. Proper selection and maintenance of fire doors are crucial to improving building fire safety.

[0003] In the existing technology, some fire doors can isolate the flames from the outside when facing a fire, but they cannot effectively isolate the heat, so that the temperature behind the fire door is still very high, which increases the risk of high-temperature ignition in places where flammable items are stored. The connections between the door frames and door bodies of some fire doors, and between doors themselves, are not very tight, so when facing the heat wave generated by the sudden explosion of the fire point, the door body will be severely impacted. If the connection structure is not tight, the door body can be easily pushed open, increasing the risk of fire spread. Utility Model Content

[0004] The purpose of the utility model is to provide a reflective heat-insulating fire door, which can isolate flames and isolate most of the heat from the outside by reflection. When facing the situation of flame explosion, the door body is not easily opened by the heat wave.

[0005] In order to achieve the above-mentioned purpose, a reflective heat-insulating fireproof door is provided, including a door frame, the left side of the door frame is rotatably connected to a first door body, the front of the first door body is rotatably connected to a knob, the rear of the knob is fixedly connected to an active bevel gear, the right side of the door frame is rotatably connected to a second door body, the front of the second door body is rotatably connected to a handle, the rear of the first door body is fixedly connected to a fireproof board, the rear of the second door body is fixedly connected to a fireproof board, and first jacks are provided on the upper and lower sides of the left side of the door frame.

[0006] According to the reflective heat-insulating fire door, the exterior of the first door body is composed of a first frame body, the interior of the first frame body is rotatably connected to a rotating rod, the middle part of the rotating rod is fixedly connected to a driven bevel gear, the upper and lower sides of the rotating rod are fixedly connected to limiting rings, the upper and lower ends of the rotating rod are provided with external threads, the upper and lower sides of the rotating rod are threadedly connected to sliders, the upper side of the slider is fixedly connected to a first lock pin, and the right side of the first frame body is provided with a second socket.

[0007] According to the reflective heat-insulating fireproof door, a first lock pin is fixedly connected to the lower side of the lower slider, and the first lock pin passes through the upper and lower sides of the first frame. The first lock pin is slidably connected to the first frame.

[0008] According to the reflective heat-insulating fireproof door, the driven bevel gear is meshed with the driving bevel gear, and the first lock pin corresponds to the first insertion hole.

[0009] According to the reflective heat-insulating fire door, the exterior of the second door body is composed of a second frame body, the interior of the second frame body is fixedly connected to a fixed frame, the upper and lower sides of the interior of the fixed frame are fixedly connected to limit blocks, the interior of the fixed frame is rotatably connected to a rotating shaft, the bottom of the rotating shaft is fixedly connected to a driving gear, the top of the driving gear is meshed with a rack, the left side of the rack is fixedly connected to a second lock pin, the bottom of the driving gear is meshed with a driven gear, the bottom of the driven gear is meshed with a rack, and the left side of the rack is fixedly connected to a second lock pin.

[0010] According to the reflective heat-insulating fireproof door, the rack is tightly fitted with the limiting block, and the rack is slidably connected with the limiting block.

[0011] According to the reflective heat-insulating fireproof door, the second lock pin passes through the left side of the second frame, the second lock pin is slidably connected to the second frame, the second lock pin corresponds to the second socket, and the rotating shaft is fixedly connected to the handle.

[0012] According to the reflective insulated fire door, the exterior of the fireproof board is composed of a fireproof frame, the interior of the fireproof frame is fixedly connected to a first fireproof layer, the front of the first fireproof layer is fixedly connected to a second fireproof layer, the front of the second fireproof layer is fixedly connected to a third fireproof layer, the front of the third fireproof layer is fixedly connected to a sealing plate, the fireproof frame is fixedly connected to the sealing plate, the fireproof frame is made of stainless steel, the first fireproof layer is made of aluminum foil, the second fireproof layer is made of stainless steel, the third fireproof layer is made of rock wool, and the sealing plate is made of stainless steel.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, this reflective heat-insulating fire door has a first lock pin corresponding to the first insertion hole, so that when the upper first lock pin moves upward and the lower first lock pin moves downward, the first lock pin is simultaneously inserted into the inside of the first insertion hole, thereby locking the first door body; a second lock pin is fixedly connected to the left side of the rack, and the second lock pin corresponds to the second insertion hole, so that when the rack drives the second lock pin to move to the left, the second lock pin is inserted into the inside of the second insertion hole, at this time locking the second door body, and through the cooperation of the two, the first door body and the second door body are not easily opened by heat waves.

[0015] 2. Compared with the existing technology, this reflective insulated fire door is equipped with a fire frame, a first fire layer, and a third fire layer. The fire frame is made of stainless steel, the first fire layer is made of aluminum foil, and the second fire layer is made of stainless steel. The three work together to reflect and block the heat in the direction of combustion, thereby blocking a certain amount of heat from spreading to the overall structure. By providing a third fire layer, and the material of the third fire layer is rock wool, it can block the heat and prevent the heat from spreading.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional diagram of a reflective heat-insulating fire door according to the present invention;

[0019] Figure 2 This is a schematic diagram of the separation of the door frame and the first door body of a reflective heat-insulating fire door according to the present invention;

[0020] Figure 3 This is a cross-sectional view of the second door body of a reflective heat-insulating fire door according to the present invention;

[0021] Figure 4 This is a cross-sectional view of the first door body of a reflective heat-insulating fire door according to the present invention;

[0022] Figure 5 This is a three-dimensional diagram of the active bevel gear of a reflective heat-insulating fireproof door of the utility model;

[0023] Figure 6 This is an exploded view of the fireproof layer of a reflective heat-insulating fireproof door of the utility model.

[0024] Legend:

[0025] 1. Door frame; 2. First door body; 3. Knob; 4. Driving bevel gear; 5. Second door body; 6. Turn handle; 7. Fireproof board; 8. First socket;

[0026] 21. First frame; 22. Rotating rod; 23. Driven bevel gear; 24. Limiting ring; 25. External thread; 26. Slider; 27. First locking pin; 28. Second jack;

[0027] 51. Second frame; 52. Fixed frame; 53. Limit block; 54. Rotating shaft; 55. Driving gear; 56. Rack; 57. Second locking pin; 58. Driven gear;

[0028] 71. Fireproof frame; 72. First fireproof layer; 73. Second fireproof layer; 74. Third fireproof layer; 75. Sealing plate. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] Reference Figure 1-6 The embodiment of the present invention is a reflective heat-insulating fireproof door, which includes a door frame 1. The left side of the door frame 1 is rotatably connected to a first door body 2. The outside of the first door body 2 is composed of a first frame 21. The inside of the first frame 21 is rotatably connected to a rotating rod 22. The middle part of the rotating rod 22 is fixedly connected to a driven bevel gear 23. The upper and lower sides of the rotating rod 22 are fixedly connected to a limit ring 24. The upper and lower ends of the rotating rod 22 are provided with external threads 25. The upper and lower sides of the rotating rod 22 are threadedly connected to a slider 26. The upper slider 2 6 is fixedly connected to the top of the first frame 21, a second socket 28 is opened on the right side of the first frame 21, and the first lock pin 27 is fixedly connected to the bottom of the lower slider 26. The first lock pin 27 runs through the upper and lower sides of the first frame 21. The first lock pin 27 is slidably connected to the first frame 21. The front of the first door body 2 is rotatably connected to the knob 3, and the rear of the knob 3 is fixedly connected to the driving bevel gear 4. The driven bevel gear 23 is meshed with the driving bevel gear 4, and the first lock pin 27 corresponds to the first socket 8.

[0031] In the above structure, the driving bevel gear 4 is rotated by rotating the knob 3, and the driven bevel gear 23 is meshed with the rear of the driving bevel gear 4, so that the driving bevel gear 4 drives the driven bevel gear 23 to rotate, and the rotating rod 22 is fixedly connected to the inside of the driven bevel gear 23, so that the driven bevel gear 23 drives the rotating rod 22 to rotate, and the slider 26 is threadedly connected to the upper and lower sides of the rotating rod 22, so that it drives the slider 26 to move up and down, and the first lock pin 27 is fixedly connected to one side of the slider 26, so that the first lock pin 27 and the slider 26 move up and down synchronously.

[0032] The first lock pin 27 corresponds to the first insertion hole 8, so that when the upper first lock pin 27 moves upward and the lower first lock pin 27 moves downward, the first lock pin 27 is simultaneously inserted into the inside of the first insertion hole 8, thereby locking the first door body 2.

[0033] The right side of the door frame 1 is rotatably connected to the second door body 5. The outside of the second door body 5 is composed of a second frame body 51. The interior of the second frame body 51 is fixedly connected to a fixed frame 52. The upper and lower sides of the interior of the fixed frame 52 are fixedly connected to a limit block 53. The interior of the fixed frame 52 is rotatably connected to a rotating shaft 54. A driving gear 55 is fixedly connected to the bottom of the rotating shaft 54. A rack 56 is meshed with the top of the driving gear 55. A second lock pin 57 is fixedly connected to the left side of the rack 56. A driven gear 58 is meshed with the bottom of the driving gear 55. A rack 56 is meshed with the bottom of the driven gear 58. The rack 56 is tightly fitted with the limit block 53, and the rack 56 is slidably connected to the limit block 53. The left side of the rack 56 is fixedly connected to the second lock pin 57. The second lock pin 57 runs through the left side of the second frame body 51. The second lock pin 57 is slidably connected to the second frame body 51. The second lock pin 57 corresponds to the second socket 28, and the rotating shaft 54 ​​is fixedly connected to the turn handle 6.

[0034] The above structure rotates the driving gear 55 by rotating the handle 6, and a rack 56 is engaged with the top of the driving gear 55, and a driven gear 58 is engaged with the bottom of the driving gear 55, so that the driving gear 55 drives the rack 56 to move left and right, so that the driving gear 55 drives the driven gear 58 to rotate, and the rack 56 is engaged with the bottom of the driven gear 58, so that the driven gear 58 drives the rack 56 to move left and right.

[0035] A second locking pin 57 is fixedly connected to the left side of the rack 56 , and the second locking pin 57 corresponds to the second insertion hole 28 , so that when the rack 56 drives the second locking pin 57 to move leftward, the second locking pin 57 is inserted into the interior of the second insertion hole 28 .

[0036] The front of the second door body 5 is rotatably connected to a handle 6, the rear of the first door body 2 is fixedly connected to a fireproof board 7, the rear of the second door body 5 is fixedly connected to a fireproof board 7, the outside of the fireproof board 7 is composed of a fireproof frame 71, the inside of the fireproof frame 71 is fixedly connected to a first fireproof layer 72, the front of the first fireproof layer 72 is fixedly connected to a second fireproof layer 73, the front of the second fireproof layer 73 is fixedly connected to a third fireproof layer 74, the front of the third fireproof layer 74 is fixedly connected to a sealing plate 75, the fireproof frame 71 is fixedly connected to the sealing plate 75, the fireproof frame 71 is made of stainless steel, the first fireproof layer 72 is made of aluminum foil, the second fireproof layer 73 is made of stainless steel, the third fireproof layer 74 is made of rock wool, the sealing plate 75 is made of stainless steel, and a first jack 8 is provided on the upper and lower sides of the left side of the door frame 1.

[0037] By providing a fireproof frame 71, a first fireproof layer 72, and a third fireproof layer 74, and the material of the fireproof frame 71 is stainless steel, the first fireproof layer 72 is aluminum foil, and the material of the second fireproof layer 73 is stainless steel, the three work together to reflect and block the heat in the direction of combustion, and block a certain amount of heat from spreading to the overall structure. By providing a third fireproof layer 74, and the material of the third fireproof layer 74 is rock wool, it can block the heat and prevent the heat from spreading.

[0038] Working principle: When facing a fire, this type of reflective heat-insulating fire door first closes the first door body 2 and the second door body 5 at the same time, and then turns the knob 3 and the handle 6 at the same time to lock the first door body 2 with the door frame 1, and the second door body 5 with the first door body 2. Through the cooperation of the two, the heat wave is blocked and resisted. By providing a fireproof board 7, the material of the fireproof board 7 itself reflects and blocks the heat to prevent heat from penetrating the door body.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A reflective heat-insulating fire door, characterized in that: The invention comprises a door frame (1), wherein the left side of the door frame (1) is rotatably connected to a first door body (2), the front of the first door body (2) is rotatably connected to a knob (3), the rear of the knob (3) is fixedly connected to an active bevel gear (4), the right side of the door frame (1) is rotatably connected to a second door body (5), the front of the second door body (5) is rotatably connected to a handle (6), the rear of the first door body (2) is fixedly connected to a fireproof board (7), the rear of the second door body (5) is fixedly connected to a fireproof board (7), and the left upper and lower sides of the door frame (1) are provided with first jacks (8).

2. A reflective heat-insulating fire door according to claim 1, characterized in that: The exterior of the first door body (2) is composed of a first frame body (21), the interior of the first frame body (21) is rotatably connected to a rotating rod (22), the middle of the rotating rod (22) is fixedly connected to a driven bevel gear (23), the upper and lower sides of the rotating rod (22) are fixedly connected to a limiting ring (24), the upper and lower ends of the rotating rod (22) are provided with external threads (25), the upper and lower sides of the rotating rod (22) are threadedly connected to a slider (26), the upper side of the slider (26) is fixedly connected to a first lock pin (27), and the right side of the first frame body (21) is provided with a second jack (28).

3. A reflective heat-insulating fire door according to claim 2, characterized in that: A first locking pin (27) is fixedly connected to the lower side of the slider (26) below. The first locking pin (27) passes through the upper and lower sides of the first frame (21). The first locking pin (27) is slidably connected to the first frame (21).

4. A reflective heat-insulating fire door according to claim 2, characterized in that: The driven bevel gear (23) is meshed with the driving bevel gear (4), and the first locking pin (27) corresponds to the first insertion hole (8).

5. The reflective heat-insulating fire door according to claim 1, characterized in that: The exterior of the second door body (5) is composed of a second frame body (51), the interior of the second frame body (51) is fixedly connected to a fixed frame (52), the upper and lower sides of the interior of the fixed frame (52) are fixedly connected to limit blocks (53), the interior of the fixed frame (52) is rotatably connected to a rotating shaft (54), the lower part of the rotating shaft (54) is fixedly connected to a driving gear (55), the upper part of the driving gear (55) is meshed with a rack (56), the left side of the rack (56) is fixedly connected to a second lock pin (57), the lower part of the driving gear (55) is meshed with a driven gear (58), the lower part of the driven gear (58) is meshed with a rack (56), and the left side of the rack (56) is fixedly connected to a second lock pin (57).

6. A reflective heat-insulating fire door according to claim 5, characterized in that: The rack (56) is tightly fitted with the limiting block (53), and the rack (56) is slidably connected to the limiting block (53).

7. The reflective heat-insulating fire door according to claim 5, characterized in that: The second locking pin (57) passes through the left side of the second frame (51), the second locking pin (57) is slidably connected to the second frame (51), the second locking pin (57) corresponds to the second jack (28), and the rotating shaft (54) is fixedly connected to the turning handle (6).

8. The reflective heat-insulating fire door according to claim 1, characterized in that: The exterior of the fireproof board (7) is composed of a fireproof frame (71), the interior of the fireproof frame (71) is fixedly connected to a first fireproof layer (72), the front of the first fireproof layer (72) is fixedly connected to a second fireproof layer (73), the front of the second fireproof layer (73) is fixedly connected to a third fireproof layer (74), the front of the third fireproof layer (74) is fixedly connected to a sealing plate (75), the fireproof frame (71) and the sealing plate (75) are fixedly connected, the material of the fireproof frame (71) is stainless steel, the first fireproof layer (72) is aluminum foil, the material of the second fireproof layer (73) is stainless steel, the material of the third fireproof layer (74) is rock wool, and the material of the sealing plate (75) is stainless steel.

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