Anti-deformation heat and fire resistant door for fire engineering

Abstract

The utility model relates to fire engineering technical field especially fire engineering is with preventing deformation's heat -proof fire door, including door frame, still including door shell and door lock component, door frame one side fixedly connected with door shaft, door frame one side fixedly connected with door shaft, the material that this device adopts through door shell is steel sheet to improve the strength of door, prevent deformation, the material that fills the layer adopts is magnesium oxide to improve the heat -proof of door, through being provided with first fire -retardant expansion seal and second fire -retardant expansion seal on door frame and door shell, thereby the door gap is sealed, improves the leakproofness, can effectively block the flue gas, through first spring drive movable block in the inside slide of guide block, movable block drive toothed plate removal, toothed plate drive gear rotation, gear drive first rotation axis rotation, first rotation axis drive second connecting rod rotation, second connecting rod drive first connecting rod in the inside rotation of fixed block, thereby the door shell is automatically closed, prevents the fire, flue gas spreads.

Description

Technical Field

[0001] This utility model relates to the field of fire protection engineering technology, and in particular to a heat-insulating fireproof door for fire protection engineering that is resistant to deformation. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability and heat insulation within a certain period of time. In addition to the functions of ordinary doors, they also have the function of preventing the spread of fire, delaying the spread of fire, and resisting fire for a certain period of time, so as to facilitate the evacuation of people at the fire scene and buy time for people to escape the fire. They are usually installed in fire compartments or evacuation stairwells of public buildings such as schools, workplaces, and shopping malls, and have become important fire protection components of modern buildings.

[0003] Most existing fire doors are steel fire doors, wooden fire doors, steel-wood fire doors, glass fire doors, aluminum alloy fire doors, and inorganic composite fire doors, used for fire separation within buildings, such as stairwells, vestibules, and equipment rooms.

[0004] However, fire doors are prone to deformation due to thermal expansion in high-temperature environments, which can lead to problems such as increased gaps between the door leaf and the frame and seal failure. This seriously affects the fire and smoke prevention effect and makes it difficult to meet the long-term stability requirements under complex working conditions. In addition, traditional fire doors have shortcomings in terms of heat insulation, impact resistance and sealing, and cannot effectively block the spread of high-temperature smoke, threatening the safety of personnel evacuation. Summary of the Invention

[0005] Existing fire doors are prone to deformation due to thermal expansion in high-temperature environments, which can lead to problems such as increased gaps between the door leaf and the frame and seal failure. This seriously affects the fireproof and smoke-proof performance and fails to effectively prevent the spread of high-temperature smoke.

[0006] The technical solution of this utility model is as follows: a heat-insulating fireproof door for fire protection engineering that is resistant to deformation, including a door frame; it also includes a door shell and a door lock assembly; a door hinge is fixedly connected to one side of the door frame, a door shell is fixedly connected to one side of the door hinge, a door lock assembly is provided on one side of the door shell, a first fireproof expansion seal for filling door gaps is pasted on one side of the door frame, a second fireproof expansion seal for filling door gaps is pasted on one side of the door shell, a filling layer is provided inside the first fireproof expansion seal, a guide block is fixedly connected to one side of the door shell, a first spring is fixedly connected to the inside of the guide block, a movable block is fixedly connected to one side of the first spring, a toothed plate is fixedly connected to one side of the movable block, a fixed block is fixedly connected to one side of the door frame, a first connecting rod is rotatably connected to the inside of the fixed block, a second connecting rod is rotatably connected to the outside of the first connecting rod, a first rotating shaft is fixedly connected to one side of the second connecting rod, a gear is fixedly connected to the outside of the first rotating shaft, and the gear meshes with the toothed plate.

[0007] As a preferred option, the door shell is made of steel plate, and the filling layer is made of magnesium oxide.

[0008] Preferably, the guide block has a groove, and the movable block is slidably connected to the inside of the guide block through the groove.

[0009] Preferably, the guide block has a second groove, and the first rotating shaft is rotatably connected to the inner side of the guide block through the second groove.

[0010] Preferably, the door lock assembly includes a second spring, with the second spring located inside the door housing, a slider fixedly connected to one side of the second spring, a latch on one side of the slider, a limit post on the inside of the door housing, a second rotating shaft rotatably connected to the inside of the door frame, a toggle block fixedly connected to the outside of the second rotating shaft, and a door handle fixedly connected to the outside of the second rotating shaft.

[0011] Preferably, the slider has a third groove, and the slider is slidably connected to the limiting post through the third groove.

[0012] Preferably, the slider has a slot four, and the actuating block is movably connected to the inside of the slider through the slot four.

[0013] The beneficial effects of this utility model are as follows: Compared with traditional fire doors, fire doors are prone to deformation due to thermal expansion in high-temperature environments, which can lead to problems such as increased gaps between the door leaf and the door frame and sealing failure, seriously affecting the fireproof and smoke-proof effect and failing to effectively block the spread of high-temperature smoke. This device uses steel plate as the material for the door shell, thereby improving the door's strength and preventing deformation; it uses magnesium oxide as the material for the filling layer, thereby improving the door's heat insulation; and it has a first fireproof expansion seal and a second fireproof expansion seal on the door frame and door shell, thereby sealing the door gaps and improving the sealing performance, effectively blocking smoke. The first spring drives the movable block to slide inside the guide block, the movable block drives the toothed plate to move, the toothed plate drives the gear to rotate, the gear drives the first rotating shaft to rotate, the first rotating shaft drives the second connecting rod to rotate, and the second connecting rod drives the first connecting rod to rotate inside the fixed block, thereby automatically closing the door shell and preventing the spread of fire and smoke. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is another three-dimensional structural schematic of this utility model;

[0016] Figure 3 The diagram shown is a cross-sectional view of the door shell, the second fireproof expansion seal, and the filling layer of this utility model.

[0017] Figure 4The diagram shown is a cross-sectional view of the door frame, door shell, and guide block assembly of this utility model.

[0018] Figure 5 The diagram shown is a cross-sectional view of the door lock assembly of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Door frame; 2. Door hinge; 301. Door shell; 302. First fireproof expansion seal; 303. Second fireproof expansion seal; 304. Filler layer; 305. Guide block; 306. First spring; 307. Movable block; 308. Toothed plate; 309. Fixed block; 310. First connecting rod; 311. Second connecting rod; 312. First rotating shaft; 313. Gear; 401. Second spring; 402. Slider; 403. Lock tongue; 404. Limiting post; 405. Second rotating shaft; 406. Actuating block; 407. Door handle. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-5This utility model provides an embodiment of a deformation-resistant, heat-insulating fireproof door for fire protection engineering, including a door frame 1; it also includes a door shell 301 and a door lock assembly; a door hinge 2 is fixedly connected to one side of the door frame 1, and the door shell 301 is fixedly connected to one side of the door hinge 2; a door lock assembly is provided on one side of the door shell 301; a first fire-resistant expansion seal 302 for filling door gaps is pasted on one side of the door frame 1; a second fire-resistant expansion seal 303 for filling door gaps is pasted on one side of the door shell 301; a filling layer 304 is provided inside the first fire-resistant expansion seal 302; a guide block 305 is fixedly connected to one side of the door shell 301; a first spring 306 is fixedly connected to the inside of the guide block 305; and a first spring 306 is fixedly connected to one side of the first spring 306. There is a movable block 307, with a toothed plate 308 fixedly connected to one side of the movable block 307. A fixed block 309 is fixedly connected to one side of the door frame 1. A first connecting rod 310 is rotatably connected to the inner side of the fixed block 309, and a second connecting rod 311 is rotatably connected to the outer side of the first connecting rod 310. A first rotating shaft 312 is fixedly connected to one side of the second connecting rod 311, and a gear 313 is fixedly connected to the outer side of the first rotating shaft 312. The gear 313 meshes with the toothed plate 308. The door shell 301 is made of steel plate, and the filling layer 304 is made of magnesium oxide. The use of steel plate for the door shell 301 improves the door's strength and prevents deformation; the use of magnesium oxide for the filling layer 304 improves the door's... For heat insulation, a groove is provided on the guide block 305, through which the movable block 307 is slidably connected to the inner side of the guide block 305. The groove on the guide block 305 allows the movable block 307 to slide and be guided and limited. A second groove is provided on the guide block 305, through which the first rotating shaft 312 is rotatably connected to the inner side of the guide block 305. The groove on the guide block 305 allows the first rotating shaft 312 to be rotatably connected to the inner side of the guide block 305, thus limiting its movement. The door shell 301 is made of steel plate, thereby increasing the door's strength and preventing deformation. The filling layer 304 uses… The material is magnesium oxide, which improves the heat insulation of the door. The door frame 1 and the door shell 301 are equipped with a first fireproof expansion seal 302 and a second fireproof expansion seal 303, which seal the door gaps and improve the sealing performance, effectively blocking smoke. The first spring 306 drives the movable block 307 to slide inside the guide block 305. The movable block 307 drives the toothed plate 308 to move. The toothed plate 308 drives the gear 313 to rotate. The gear 313 drives the first rotating shaft 312 to rotate. The first rotating shaft 312 drives the second connecting rod 311 to rotate. The second connecting rod 311 drives the first connecting rod 310 to rotate inside the fixed block 309, thereby automatically closing the door shell 301 and preventing the spread of fire and smoke.

[0022] Please see Figure 5In this embodiment, the door lock assembly includes a second spring 401. The second spring 401 is disposed inside the door housing 301. A slider 402 is fixedly connected to one side of the second spring 401. A latch 403 is disposed on one side of the slider 402. A limit post 404 is disposed inside the door housing 301. A second rotating shaft 405 is rotatably connected to the inside of the door frame 1. A toggle block 406 is fixedly connected to the outside of the second rotating shaft 405. A door handle 407 is fixedly connected to the outside of the second rotating shaft 405. A groove is provided on the slider 402. 402 is slidably connected to the limiting post 404 via slot three. The slider 402 is slidably connected to the limiting post 404 via slot three, thereby guiding and limiting the slider 402. The slider 402 is provided with slot four, and the actuating block 406 is movably connected to the inner side of the slider 402 via slot four. The actuating block 406 is movably connected to the inner side of the slider 402 via slot four. By pressing the actuating block 406, the slider 402 is moved.

[0023] During operation, the door shell 301 is made of steel plate, which increases the door's strength and prevents deformation. The filling layer 304 is made of magnesium oxide, which improves the door's heat insulation. The door frame 1 and the door shell 301 are equipped with a first fire-resistant expansion seal 302 and a second fire-resistant expansion seal 303, which seal the door gaps, improving the airtightness and effectively blocking smoke. Turning the door handle 407 rotates the second rotating shaft 405, which in turn rotates the actuating block 406. The actuating block 406 presses against the slider 402, causing the slider 402 to move the latch 403, retracting it into the door shell 301. Pulling the door handle 407 opens the door shell 301, at which point the door shell 301 moves the guide block 305. The first rotating shaft 312 rotates, causing the second connecting rod 311 and the first connecting rod 310 to move. The first rotating shaft 312 drives the gear 313 to rotate, which in turn drives the toothed plate 308 to move. The toothed plate 308 drives the movable block 307 to move, and the movable block 307 presses against the first spring 306, opening the door shell 301. When the door handle 407 is released, the first spring 306 drives the movable block 307 to slide inside the guide block 305. The movable block 307 drives the toothed plate 308 to move, which in turn drives the gear 313 to rotate. The gear 313 drives the first rotating shaft 312 to rotate, which in turn drives the second connecting rod 311 to rotate. The second connecting rod 311 drives the first connecting rod 310 to rotate inside the fixed block 309, thereby automatically closing the door shell 301 to prevent the spread of fire and smoke.

[0024] Through the above steps, the door shell 301 is made of steel plate, thereby improving the door's strength and preventing deformation; the filling layer 304 is made of magnesium oxide, thereby improving the door's heat insulation; the door frame 1 and the door shell 301 are equipped with a first fireproof expansion seal 302 and a second fireproof expansion seal 303, thereby sealing the door gaps and improving the sealing performance, effectively blocking smoke; the first spring 306 drives the movable block 307 to slide inside the guide block 305, the movable block 307 drives the toothed plate 308 to move, the toothed plate 308 drives the gear 313 to rotate, the gear 313 drives the first rotating shaft 312 to rotate, the first rotating shaft 312 drives the second connecting rod 311 to rotate, and the second connecting rod 311 drives the first connecting rod 310 to rotate inside the fixed block 309, thereby automatically closing the door shell 301 and preventing the spread of fire and smoke.

Claims

1. A heat-insulating fireproof door for fire protection engineering, comprising a door frame (1); characterized in that: It also includes a door shell (301) and a door lock assembly; a door hinge (2) is fixedly connected to one side of the door frame (1), a door shell (301) is fixedly connected to one side of the door hinge (2), a door lock assembly is provided on one side of the door shell (301), a first fireproof expansion seal (302) for filling door gaps is pasted on one side of the door frame (1), a second fireproof expansion seal (303) for filling door gaps is pasted on one side of the door shell (301), a filling layer (304) is provided inside the first fireproof expansion seal (302), a guide block (305) is fixedly connected to one side of the door shell (301), and a guide block (305) is fixed inside the guide block (305). A first spring (306) is connected, a movable block (307) is fixedly connected to one side of the first spring (306), a toothed plate (308) is fixedly connected to one side of the movable block (307), a fixed block (309) is fixedly connected to one side of the door frame (1), a first connecting rod (310) is rotatably connected to the inside of the fixed block (309), a second connecting rod (311) is rotatably connected to the outside of the first connecting rod (310), a first rotating shaft (312) is fixedly connected to one side of the second connecting rod (311), a gear (313) is fixedly connected to the outside of the first rotating shaft (312), and the gear (313) meshes with the toothed plate (308).

2. The fireproof and heat-insulating door for fire protection engineering as described in claim 1, characterized in that: The door shell (301) is made of steel plate, and the filling layer (304) is made of magnesium oxide.

3. The fireproof and heat-insulating door for fire protection engineering as described in claim 1, characterized in that: A groove is provided on the guide block (305), and the movable block (307) is slidably connected to the inside of the guide block (305) through the groove.

4. The fireproof and heat-insulating door for fire protection engineering as described in claim 1, characterized in that: The guide block (305) has a second groove, and the first rotating shaft (312) is rotatably connected to the inside of the guide block (305) through the second groove.

5. The fireproof and heat-insulating door for fire protection engineering as described in claim 1, characterized in that: The door lock assembly includes a second spring (401), the second spring (401) is provided on the inside of the door shell (301), a slider (402) is fixedly connected to one side of the second spring (401), a lock tongue (403) is provided on one side of the slider (402), a limit post (404) is provided on the inside of the door shell (301), a second rotating shaft (405) is rotatably connected to the inside of the door frame (1), a toggle block (406) is fixedly connected to the outside of the second rotating shaft (405), and a door handle (407) is fixedly connected to the outside of the second rotating shaft (405).

6. The fireproof and heat-insulating door for fire protection engineering as described in claim 5, characterized in that: The slider (402) has a groove three, and the slider (402) is slidably connected to the limiting post (404) through the groove three.

7. The fireproof and heat-insulating door for fire protection engineering as described in claim 5, characterized in that: The slider (402) has a slot four, and the toggle block (406) is movably connected to the inside of the slider (402) through the slot four.

Images