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 cavity is formed in the top of the door frame in a penetrating manner, a water tank is mounted on the surface of the top end of the door frame, swing water spraying mechanisms are arranged on two sides of the top of the door frame and positioned in the cavity, and the swing water spraying mechanisms are arranged in the cavity. A door plate is hinged to the bottom of the door frame. The swing water spraying mechanism is adopted, water mist can be rapidly released when the door is closed, fire extinguishing is directly conducted on a fire source, the fire behavior can be rapidly controlled, meanwhile, the concentration of smoke generated in a fire disaster is effectively reduced, the visibility of an escape channel is improved, people are helped to rapidly evacuate, and due to the hollowed-out design of the top of the door frame, the safety of the door is improved. Air circulation can be improved, the temperature difference inside and outside the door is reduced, and the risk that smoke accumulates behind the door is effectively reduced.

Description

Technical Field

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

[0002] Steel fire doors are safety doors specially designed to prevent the spread of fire. These doors are usually made of steel and have excellent fire resistance. They are widely used in commercial buildings, industrial facilities and public places. Steel fire doors usually have a long service life and low maintenance costs, which makes them more attractive in commercial and industrial environments. As people pay more attention to fire safety, the use of steel fire doors has gradually become popular and has become an important part of modern building safety design.

[0003] Existing steel fire doors are unable to suppress flames and smoke in time in the early stages of a fire, causing the fire to spread rapidly, increasing the difficulty of evacuating and fighting the fire, and are unable to effectively reduce the temperature and concentration of smoke to prevent the spread of smoke in corridors or other areas. Smoke may spread rapidly indoors, posing a suffocation hazard to personnel.

[0004] Therefore, it is urgent to provide a steel fire door to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the disadvantages of the above-mentioned prior art and provide a steel fireproof door.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a steel fire door, including a door frame, a cavity is opened through the top of the door frame, and a water tank is installed on the top surface of the door frame, swinging water spraying mechanisms are arranged on both sides of the top of the door frame, and the swinging water spraying mechanisms are located in the cavity, and a door panel is hinged at the bottom of the door frame.

[0007] Through the above technical solution, the fire is suppressed and the temperature is reduced, and the water spray mechanism can provide more escape time for the trapped people and increase the chance of survival.

[0008] The utility model is further configured as follows: the swinging water spraying mechanism includes two sliding rods, the two sliding rods are fixedly connected to the door frame, and a spring is arranged between the two sliding rods, one end of the spring is fixedly connected to a moving part, and the other end of the spring is fixedly connected to the sliding rod, the moving part is slidably connected with the two sliding rods, and the sliding rod limits the spring.

[0009] Through the above technical solution, the door body can be prevented from overheating, the structural integrity of the door can be maintained, and material failure caused by high temperature can be reduced.

[0010] The utility model is further configured as follows: a first sprocket and a second sprocket are rotatably connected to the top of the door frame, the first sprocket and the second sprocket are transmission-connected by a chain, the second sprocket connecting shaft is rotatably connected to the door frame, and the second sprocket connecting shaft is fixedly connected to a paddle plate, the paddle plate is slidingly connected to one side of a moving member, a connecting frame is provided at one end of the moving member away from the paddle plate, the connecting frame is rotatably connected to the door frame, the first sprocket connecting shaft is rotatably connected to the door frame, and the first sprocket connecting shaft is rotatably connected to the connecting frame.

[0011] Through the above technical solution, the maintenance cost is relatively low and the installation is simple, which is suitable for a variety of buildings.

[0012] The utility model is further configured as follows: the top of the connecting frame is inclined, a slide groove is provided at the inclined end of the connecting frame, one end of the moving member away from the dial plate is located in the slide groove, and the moving member is slidably connected to the connecting frame.

[0013] The utility model is further configured as follows: the first sprocket connecting shaft is fixedly connected to the second bevel gear, the second bevel gear is transmission-connected to the first bevel gear, the first bevel gear connecting shaft is rotatably connected to the connecting frame, the first bevel gear connecting shaft is fixedly connected to the nozzle, water pipes are connected on both sides of the water tank, the other end of the water pipe is rotatably connected to the first bevel gear, and the other end of the water pipe is connected to the nozzle, and the water pipe is rotatably connected to the nozzle.

[0014] Through the above technical solution, the hollowing out of the top of the door frame allows the water mist to cover the area around the fire source more widely, thereby improving the fire extinguishing effect.

[0015] The utility model is further configured as follows: a third bevel gear is fixedly connected to one side of the two first sprockets, a fourth bevel gear is transmission-connected between the two third bevel gears, a motor is provided on one side of the fourth bevel gear, an output end of the motor is fixedly connected to the fourth bevel gear, and a mounting seat is installed at the bottom of the motor, the mounting seat is fixedly connected to the door frame, and the motor and the mounting seat are located in a cavity.

[0016] Through the above technical solution, in a fire, smoke usually rises upward, and the hollow design of the door frame can allow the smoke to be discharged faster, keeping the escape route relatively clear.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model adopts a swinging water spraying mechanism, when the motor runs, the fourth bevel gear is driven to rotate, and then the two third bevel gears are driven to rotate, thereby prompting the first sprocket to rotate. Under the transmission action of the chain, the second sprocket is rotated synchronously, and the rotation of the second sprocket drives the paddle plate to rotate, thereby to paddle the moving part. At the same time, with the cooperation of the spring, when the moving part moves on the slide rod, it can perform reciprocating motion, thereby making the other end of the moving part slide in the slide groove, thereby driving the connecting frame to flip, and when the first sprocket rotates, it can drive the second bevel gear to rotate, and synchronously drive the first bevel gear to rotate, prompting the sprinkler head to rotate, and the water in the water tank enters the sprinkler head through the water pipe, thereby realizing reciprocating flipping and rotating water spraying, and can quickly release water mist when the door is closed, directly extinguish the fire source, help to quickly control the fire, and at the same time, effectively reduce the smoke concentration generated in the fire, improve the visibility of the escape route, and help people evacuate quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first-view structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the utility model from a second viewing angle;

[0021] Figure 3 This is a partial first-view structural diagram of the swing water spraying mechanism of the utility model;

[0022] Figure 4 It is a partial second-view structural diagram of the swing water spraying mechanism of the utility model;

[0023] Figure 5 This is a diagram of the internal structure of the cavity of the present utility model.

[0024] In the figure: 1. door frame; 2. cavity; 3. door panel; 4. water tank; 5. water pipe; 6. nozzle; 7. first bevel gear; 8. second bevel gear; 9. connecting frame; 10. slide groove; 11. moving part; 12. paddle; 13. chain; 14. first sprocket; 15. second sprocket; 16. slide rod; 17. spring; 18. third bevel gear; 19. motor; 20. mounting base; 21. fourth bevel gear. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] See also Figure 1-Figure 5A steel fireproof door comprises a door frame 1, a cavity 2 is formed through the top of the door frame 1, and the hollowing out of the top of the door frame 1 allows water mist to cover the area around the fire source more widely, thereby improving the fire extinguishing effect. A water tank 4 is installed on the top surface of the door frame 1, and swinging water spraying mechanisms are arranged on both sides of the top of the door frame 1 to suppress the fire and reduce the temperature. The water spraying mechanism can provide more escape time for trapped persons and improve the chance of survival. The swinging water spraying mechanism comprises two sliding bars 16, which are fixedly connected to the door frame 1, and a first sprocket 14 and a second sprocket 15 are rotatably connected to the top of the door frame 1. A third bevel gear 18 is fixedly connected to one side of the two first sprockets 14, and a fourth bevel gear 21 is transmission-connected between the two third bevel gears 18. A motor 19 is arranged on one side of the fourth bevel gear 21, which can prevent the door body from overheating, maintain the structural integrity of the door, and reduce material failure caused by high temperature. The output end of the motor 19 is fixedly connected to the fourth bevel gear 21, and the bottom of the motor 19 is installed There is a mounting seat 20, which is fixedly connected to the door frame 1, and the motor 19 and the mounting seat 20 are located in the cavity 2. The first sprocket 14 connecting shaft is fixedly connected to the second bevel gear 8, and the second bevel gear 8 is transmission-connected to the first bevel gear 7, and the first bevel gear 7 is connected to the connecting frame 9 through rotation. The maintenance cost is relatively low, and the installation is simple, which is suitable for a variety of buildings. The first bevel gear 7 connecting shaft is fixedly connected to the nozzle 6, and the two sides of the water tank 4 are connected with water pipes 5. The other end of the water pipe 5 is connected to the first bevel gear 7 through rotation, and the other end of the water pipe 5 is connected to the nozzle 6, and the water pipe 5 is connected to the nozzle 6 through rotation. The first sprocket 14 and the second sprocket 15 are transmission-connected with the chain 13, and the second sprocket 15 connecting shaft is connected to the door frame 1 through rotation, and the second sprocket 15 connecting shaft is fixedly connected to the dial plate 12, and the dial plate 12 is slidably connected to one side of the moving member 11, and the moving member 11 is provided with a connecting frame 9 at one end away from the dial plate 12, and the top of the connecting frame 9 is inclined.

[0027] A slide groove 10 is provided at the inclined end of the connecting frame 9, and the end of the moving member 11 away from the dial plate 12 is located in the slide groove 10, and the moving member 11 is slidably connected to the connecting frame 9, the connecting frame 9 is rotatably connected to the door frame 1, the first sprocket 14 connecting shaft is rotatably connected to the door frame 1, and the first sprocket 14 connecting shaft is rotatably connected to the connecting frame 9, and a spring 17 is arranged between the two slide bars 16, one end of the spring 17 is fixedly connected to the moving member 11, and the other end of the spring 17 is fixedly connected to the slide bar 16, the moving member 11 is slidably connected to the two slide bars 16, and the slide bar 16 limits the spring 17, and the swinging water spraying mechanism is located in the cavity 2. In a fire, smoke usually rises upward, and the hollow design of the door frame 1 can allow the smoke to be discharged faster, keeping the escape route relatively clear, and a door panel 3 is hinged at the bottom of the door frame 1.

[0028] When the utility model is in use, when a fire occurs indoors, the indoor smoke alarm sounds an alarm, and the smoke alarm transmits a signal to make the motor 19 run, driving the fourth bevel gear 21 to rotate, and then driving the two third bevel gears 18 to rotate, thereby prompting the first sprocket 14 to rotate. Under the transmission action of the chain 13, the second sprocket 15 is synchronously rotated, and the rotation of the second sprocket 15 drives the dial plate 12 to rotate, thereby toggling the moving member 11. At the same time, under the cooperation of the spring 17, when the moving member 11 moves on the slide rod 16, it can reciprocate, so that the other end of the moving member 11 slides in the slide groove 10, thereby driving the connecting frame 9 to flip, and when the first sprocket 14 rotates, it can drive the second bevel gear 8 to rotate, and synchronously drive the first bevel gear 7 to rotate, prompting the nozzle 6 to rotate, and the water in the water tank 4 enters the nozzle 6 through the water pipe 5, thereby realizing reciprocating flipping and rotating water spraying, which can quickly release water mist at the early stage of a fire, directly target the fire source, and effectively suppress the fire.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A steel fire door, comprising a door frame (1), characterized in that: A cavity (2) is formed through the top of the door frame (1), and a water tank (4) is mounted on the top surface of the door frame (1). Swinging water spray mechanisms are arranged on both sides of the top of the door frame (1), and the swinging water spray mechanisms are located in the cavity (2). A door panel (3) is hingedly connected to the bottom of the door frame (1).

2. A steel fire door according to claim 1, characterized in that: The swinging water spray mechanism comprises two sliding rods (16), the two sliding rods (16) are fixedly connected to the door frame (1), and a spring (17) is arranged between the two sliding rods (16), one end of the spring (17) is fixedly connected to a moving member (11), and the other end of the spring (17) is fixedly connected to the sliding rod (16), the moving member (11) is slidably connected to the two sliding rods (16), and the sliding rod (16) limits the spring (17).

3. A steel fire door according to claim 2, characterized in that: The top of the door frame (1) is rotatably connected to a first sprocket (14) and a second sprocket (15); the first sprocket (14) and the second sprocket (15) are transmission-connected to a chain (13); a connecting shaft of the second sprocket (15) is rotatably connected to the door frame (1); and a connecting shaft of the second sprocket (15) is fixedly connected to a shift plate (12); the shift plate (12) is slidably connected to one side of a moving member (11); a connecting frame (9) is provided at one end of the moving member (11) away from the shift plate (12); the connecting frame (9) is rotatably connected to the door frame (1); the connecting shaft of the first sprocket (14) is rotatably connected to the door frame (1); and the connecting shaft of the first sprocket (14) is rotatably connected to the connecting frame (9).

4. A steel fire door according to claim 3, characterized in that: The top of the connecting frame (9) is arranged in an inclined manner, and a slide groove (10) is provided at the inclined end of the connecting frame (9), and the end of the moving member (11) away from the shifting plate (12) is located in the slide groove (10), and the moving member (11) is slidably connected to the connecting frame (9).

5. A steel fire door according to claim 3, characterized in that: The first sprocket (14) connecting shaft is fixedly connected to the second bevel gear (8), the second bevel gear (8) is drivingly connected to the first bevel gear (7), the first bevel gear (7) connecting shaft is rotatably connected to the connecting frame (9), the first bevel gear (7) connecting shaft is fixedly connected to the spray head (6), the water tank (4) is connected to water pipes (5) on both sides, the other end of the water pipe (5) is rotatably connected to the first bevel gear (7), and the other end of the water pipe (5) is connected to the spray head (6), and the water pipe (5) is rotatably connected to the spray head (6).

6. A steel fire door according to claim 3, characterized in that: A third bevel gear (18) is fixedly connected to one side of the two first sprockets (14); a fourth bevel gear (21) is transmission-connected between the two third bevel gears (18); a motor (19) is provided on one side of the fourth bevel gear (21); an output end of the motor (19) is fixedly connected to the fourth bevel gear (21); a mounting seat (20) is installed at the bottom of the motor (19); the mounting seat (20) is fixedly connected to the door frame (1); and the motor (19) and the mounting seat (20) are located in the cavity (2).

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