Smoke-proof structure of fireproof door
By using sealing strips, heat insulation plates, automatic door closers, and water tank nozzle systems in the fire door, the problem of smoke dissipation in traditional fire doors is solved, and higher sealing, thermal insulation and double smoke protection are achieved. The effect improves the safety of the fire scene.
Patent Information
- Application Number
- CN202420881483.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-26
AI Technical Summary
When traditional fire doors are closed, there is a gap between the surroundings and the door frame, causing smoke to escape, posing a threat to human life safety and reducing the practicality of fire doors.
A smoke-proof structure of fire door is designed, using a combination of sealing strips and heat insulation plates between the door frame and the door body, automatic door closer and water storage tank nozzle system to improve sealing and isolation through sealing strips and heat insulation plates. It is thermal and prevents smoke and dust reduction by spraying water mist in the event of a fire.
It effectively prevents smoke from leaking from the gaps in the fire door during fire, enhances the sealing and heat insulation of the fire door, extends the service life, and achieves dual smoke protection effect by spraying water mist, improving the safety of the fire site.
Smart Images
Figure CN222333611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fireproof doors, in particular to a smoke-proof structure of fireproof doors. 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. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel. According to fire protection requirements, fire doors are currently one of the essential safety protection components in offices, residences and commercial corridors;
[0003] At present, when traditional fire doors are closed, there are gaps around the fire doors and the door frames. The smoke produced by the combustion will overflow through the gaps between the fire doors and the door frames. The smoke inside the fire scene will escape through the gaps and cause harm to the human body, reducing the practicality of the fire doors. In a fire, the impact of smoke on the life safety of residents is even greater than the flames themselves. Utility Model Content
[0004] The utility model aims to provide a smoke-proof structure for a fire-proof door.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a smoke-proof structure of a fireproof door, comprising a door frame, a door body is rotatably connected to the inside of the door frame, an automatic door closer is arranged at the connection between the door frame and the door body, an opening is opened through the inside of the door frame, a first sealing strip is fixedly connected to the inside of the opening, and a second sealing strip is fixedly connected to the inside of the door body;
[0006] The first sealing strip corresponds to the second sealing strip, two inner ends of the second sealing strip are fixedly connected with positioning blocks, and a positioning hole is arranged inside the first sealing strip, and the positioning hole corresponds to the positioning block.
[0007] As a further description of the above technical solution: a first heat insulation board is arranged at one end inside the door body, and a second heat insulation board is arranged at the other end of the first heat insulation board.
[0008] As a further description of the above technical solution: a third insulation board is arranged at the other end of the second insulation board.
[0009] As a further description of the above technical solution: an installation cavity is provided through the upper part of the interior of the door frame, and a water storage tank is correspondingly provided inside the installation cavity.
[0010] As a further description of the above technical solution: a threaded mounting plate is fixedly connected to the outer side of the water tank, the threaded mounting plate is threadedly connected to the door frame, and a water inlet is provided through the top of the water tank.
[0011] As a further description of the above technical solution: a water storage cavity is correspondingly arranged below the water tank, a plurality of nozzles are arranged below the water storage cavity, a delivery pipe is arranged inwardly through the installation cavity on one side of the water tank, the other end of the delivery pipe is connected to the water storage cavity, and a water pump is arranged in the middle of the delivery pipe.
[0012] As a further description of the above technical solution: an observation window is arranged on the door body.
[0013] The utility model has the following beneficial effects:
[0014] 1. Compared with the prior art, the smoke-proof structure of the fire door improves the sealing performance between the fire door body and the door frame by arranging a first sealing strip inside the opening to correspond to the second sealing strip inside the door body, and automatically improves the sealing performance between the fire door body and the door frame after the fire door body is closed by arranging a positioning column and a positioning hole, thereby effectively preventing smoke from leaking from the gap between the fire door body and the door frame during a fire, and increasing the heat insulation and fireproofing effect of the entire door body by arranging a first insulation board and a second insulation board, and increasing the strength of the entire door body by arranging a steel plate protective layer in the middle, thereby extending the service life of the entire door body;
[0015] 2. Compared with the prior art, the smoke-proof structure of the fire door can install the water tank on the door body by providing an installation cavity and a threaded installation plate, and can spray the water in the event of a large amount of fire smoke by providing a water storage cavity and a nozzle, thereby achieving the purpose of preventing smoke and reducing dust through water mist, thereby increasing its dual smoke-proof function.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0018] Figure 1 This is a top view of a smoke-proof structure of a fire door according to the utility model;
[0019] Figure 2 This is a schematic diagram of the sealing component structure of a smoke-proof structure of a fire door according to the utility model;
[0020] Figure 3 This is a rear view of a smoke-proof structure of a fire door according to the utility model;
[0021] Figure 4 This is a three-dimensional diagram of a smoke-proof structure of a fire door according to the utility model;
[0022] Figure 5 The utility model is a schematic diagram of the door body structure of the smoke-proof structure of a fire door.
[0023] Legend:
[0024] 1. Door frame; 2. Water inlet; 3. Water storage tank; 4. Opening; 5. First sealing strip; 6. Positioning hole; 7. Automatic door closer; 8. Door body; 9. Second sealing strip; 10. Positioning block; 11. First insulation board; 12. Second insulation board; 13. Third insulation board; 14. Threaded mounting plate; 15. Water storage chamber; 16. Observation window; 17. Nozzle; 18. Mounting chamber; 19. Delivery pipe; 20. Water pump. DETAILED DESCRIPTION
[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model 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 the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0026] Reference Figure 1-5 The utility model provides an embodiment: a smoke-proof structure of a fire door, comprising a door frame 1, a door body 8 is rotatably connected to the inside of the door frame 1, an automatic door closer 7 is arranged at the connection between the door frame 1 and the door body 8, each time the door body 8 is pushed open, the automatic door closer 7 automatically drives the door body 8 to close, an opening 4 is opened through the inside of the door frame 1, a first sealing strip 5 is fixedly connected to the inside of the opening 4, a second sealing strip 9 is fixedly connected to the inside of the door body 8, when the door body 8 is closed, the first sealing strip 5 can correspond to the second sealing strip 9, so as to prevent smoke from entering along the gap of the door body 8, thereby effectively improving the smoke-proof effect of the entire fire door;
[0027] The first sealing strip 5 corresponds to the second sealing strip 9, and the inner ends of the second sealing strip 9 are fixedly connected with positioning blocks 10. The first sealing strip 5 is provided with positioning holes 6 inside, and the positioning holes 6 correspond to the positioning blocks 10. The sealing performance of the entire device can be improved through the action between the positioning holes 6 and the positioning blocks 10. Both the positioning holes 6 and the positioning blocks 10 are made of rubber and have a certain elastic force, so there will be no interference during use, and the correspondence between the two can improve the tightness of the two sealing strips when in contact.
[0028] A first heat insulation board 11 is arranged at one end of the interior of the door body 8, a second heat insulation board 12 is arranged at the other end of the first heat insulation board 11, and a third heat insulation board 13 is arranged at the other end of the second heat insulation board 12. The first heat insulation board 11 and the third heat insulation board 13 inside can increase the heat insulation and fire prevention effect of the entire door body 8, and the second heat insulation board 12 arranged in the middle is a steel plate protective layer, which can increase the strength of the entire door body 8 and extend the service life of the entire door body 8;
[0029] An installation cavity 18 is provided through the upper part of the interior of the door frame 1, and a water storage tank 3 is provided correspondingly inside the installation cavity 18. A threaded installation plate 14 is fixedly connected to the outer side of the water storage tank 3, and the threaded installation plate 14 is threadedly connected to the door frame 1. A water inlet 2 is provided through the upper part of the water storage tank 3, and the water storage tank 3 can be installed inside the installation cavity 18 through the threaded installation plate 14, and water can be added to the inside of the water storage tank 3 through the water inlet 2;
[0030] A water storage chamber 15 is correspondingly arranged below the water storage tank 3, and a plurality of nozzles 17 are arranged below the water storage chamber 15. A delivery pipe 19 is arranged inwardly through the installation chamber 18 on one side of the water storage tank 3, and the other end of the delivery pipe 19 is connected to the water storage chamber 15. A water pump 20 is arranged in the middle of the delivery pipe 19, and an observation window 16 is arranged on the door body 8. When the smoke is large, starting the water pump 19 can allow the water inside the water storage tank 3 to enter the water storage chamber 15 through the delivery pipe 19, and then be sprayed out through the nozzles 17 below to spray the smoke on the outside, so as to achieve the purpose of smoke and dust prevention through water mist, increase its dual smoke prevention function, and by setting the observation window 16, firefighters can observe the internal situation during firefighting and rescue.
[0031] Working principle: When the device is in use, the door frame 1 is fixed in a suitable position, and each time the door body 8 is pushed open, the automatic door closer 7 automatically drives the door body 8 to close. After the door body 8 is closed, the positioning hole 6 inside the first sealing strip 5 and the positioning block 10 inside the second sealing strip 9 can make the two sealing strips correspond to each other. In this way, after the door body 8 is closed, the sealing between the door body 8 and the door frame 1 can be automatically improved, thereby effectively preventing smoke from leaking from the gap between the fire door body and the door frame during a fire. When the smoke is large, starting the water pump 19 can allow the water in the water tank 3 to enter the water storage chamber 15 through the delivery pipe 19, and then be sprayed out through the nozzle 17 below to spray the smoke on the outside, so as to achieve the purpose of smoke and dust reduction through water mist, thereby increasing its double smoke prevention effect.
[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A smoke-proof structure for a fire door, comprising a door frame (1), characterized in that: The door frame (1) is rotatably connected to a door body (8), an automatic door closer (7) is provided at the connection between the door frame (1) and the door body (8), an opening (4) is provided through the door frame (1), a first sealing strip (5) is fixedly connected to the inner side of the opening (4), and a second sealing strip (9) is fixedly connected to the inner side of the door body (8); The first sealing strip (5) and the second sealing strip (9) correspond to each other, and positioning blocks (10) are fixedly connected to the inner ends of the second sealing strip (9). A positioning hole (6) is provided inside the first sealing strip (5), and the positioning hole (6) and the positioning block (10) correspond to each other.
2. A smoke-proof structure for a fire door according to claim 1, characterized in that: A first heat insulation board (11) is arranged at one end inside the door body (8), and a second heat insulation board (12) is arranged at the other end of the first heat insulation board (11).
3. A smoke-proof structure for a fire door according to claim 2, characterized in that: A third heat insulation board (13) is provided at the other end of the second heat insulation board (12).
4. The smoke-proof structure of a fire door according to claim 1, characterized in that: An installation cavity (18) is provided through the upper part of the interior of the door frame (1), and a water storage tank (3) is correspondingly provided inside the installation cavity (18).
5. The smoke-proof structure of a fire door according to claim 4, characterized in that: A threaded mounting plate (14) is fixedly connected to the outside of the water storage tank (3), and the threaded mounting plate (14) is threadedly connected to the door frame (1). A water inlet (2) is provided through the top of the water storage tank (3).
6. The smoke-proof structure of a fire door according to claim 4, characterized in that: A water storage chamber (15) is correspondingly arranged below the water storage tank (3), and a plurality of nozzles (17) are arranged below the water storage chamber (15). A delivery pipe (19) is arranged inwardly through the installation chamber (18) on one side of the water storage tank (3), and the other end of the delivery pipe (19) is connected to the water storage chamber (15). A water pump (20) is arranged in the middle of the delivery pipe (19).
7. The smoke-proof structure of a fire door according to claim 1, characterized in that: The door body (8) is provided with an observation window (16).