Steel heat insulation fireproof door

Abstract

The utility model discloses a steel heat insulation fireproof door, which belongs to the technical field of fireproof doors, and comprises a frame, a door plate is hinged in the frame, a plurality of U-shaped fixing plates are fixedly connected to the surface of the top end of the frame, and the U-shaped fixing plates are linearly and symmetrically distributed. The top end of the U-shaped fixing plate is fixedly connected with an L-shaped fixing plate, the other end of the L-shaped fixing plate is fixedly connected with the frame, and a bidirectional heat insulation water curtain mechanism is arranged between the L-shaped fixing plate and the U-shaped fixing plate. By arranging the bidirectional heat insulation water curtain mechanism, the water curtain can absorb heat through evaporation, reduce the temperature of a fire area and reduce the temperature of the steel fireproof door directly contacted with flames, so that the door body is prevented from excessively fast thermal expansion and deformation in a fire, and the water curtain not only can reduce the temperature, but also can effectively isolate a fire source, so that the service life of the steel fireproof door is prolonged. Direct contact of flames to the surface of the fireproof door is reduced, and fire spreading speed is inhibited.

Description

Technical Field

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

[0002] With the acceleration of urbanization, the increase in high-rise buildings, underground buildings, commercial centers and industrial facilities has led to an increasing risk of fire in buildings. In these high-density and high-complexity buildings, once a fire occurs, the fire spreads quickly, making it difficult to evacuate and extinguish people, making the potential consequences of fire disasters more serious. Therefore, the fire isolation and protection functions of buildings are particularly important. In the event of a fire, fire doors play a role in isolating the source of fire and the spread of smoke, which can effectively slow down the spread of fire and provide valuable time for the evacuation of people and the rescue of firefighters. As a key component of the building fire protection system, steel insulated fire doors can isolate the source of fire, limit the spread of fire, and reduce the losses caused by fire.

[0003] When existing steel insulated fire doors face excessive temperatures in a fire, the steel will undergo thermal expansion at high temperatures, which means that when the fire door is exposed to extremely high fire temperatures, the steel door panel will expand and swell. If the expansion is excessive, the door panel may squeeze the gap between the door frame, causing the door to deform. When exposed to high temperatures for a long time, the steel fire door may bend, warp or twist, especially without proper thermal insulation, and the structural integrity of the door panel may be compromised. In severe cases, the deformed door may not be able to close or seal properly, resulting in the failure of the fire protection function.

[0004] Therefore, there is an urgent need to provide a steel heat-insulating fireproof 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 heat-insulating fireproof door.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a steel insulated fireproof door, including a frame, a door panel is hinged inside the frame, a plurality of U-shaped fixing plates are fixedly connected to the top surface of the frame, and the plurality of U-shaped fixing plates are linearly symmetrically distributed, an L-shaped fixing plate is fixedly connected to the top of the U-shaped fixing plate, and the other end of the L-shaped fixing plate is fixedly connected to the frame, and a bidirectional insulating water curtain mechanism is arranged between the L-shaped fixing plate and the U-shaped fixing plate.

[0007] Through the above technical solution, the fire source can be effectively isolated, the spread of fire can be slowed down, and more time can be bought for personnel evacuation and firefighters' rescue.

[0008] The utility model is further configured as follows: the bidirectional insulated water curtain mechanism includes a plurality of first gears, and the plurality of first gears are respectively rotatably connected to the U-shaped fixed plates, one side of the first gear is transmission-connected with a second gear, the second gear is rotatably connected to the U-shaped fixed plate, and a rotating rod is rotatably connected through the plurality of U-shaped fixed plates, and both ends of the rotating rod are rotatably connected to two U-shaped fixed plates, the rotating rod is fixedly connected to the second gear, one side of the first gear is fixedly connected to the first fixed plate, and the middle part of the first fixed plate is rotatably connected to a connecting column.

[0009] Through the above technical solution, by spraying water curtains on both sides of the door, a water vapor barrier can be formed to reduce the transfer of heat, thereby lowering the temperature of the door, helping to protect the structure and insulation effect of the door and prolong its effective fire protection time.

[0010] The utility model is further configured as follows: a nozzle is fixedly connected to one side of the connecting column in the first fixed plate, a ring-shaped tube is rotatably connected to the side of the nozzle away from the first fixed plate, a hose is connected to the top of the ring-shaped tube, the hose is connected to a water tank, and the water tank is installed on the top surface of the L-shaped fixed plate.

[0011] The utility model is further configured as follows: a connecting column in the middle of the first fixed plate is slidably connected with a plurality of second connecting rods, and the plurality of second connecting rods laterally limit the connecting column in the first fixed plate, the other end of the second connecting rod is rotatably connected with the first connecting rod, the connection between the first connecting rod and the second connecting rod is located at the center of the first gear, and the connection direction between the first connecting rod and the second connecting rod is longitudinally arranged.

[0012] Through the above technical solution, the water curtain can help alleviate this problem by reducing the speed and degree of steel expansion through cooling, thereby reducing the deformation of the door body and maintaining the door's sealing and fireproof functions.

[0013] The utility model is further configured as follows: the other end of the first connecting rod is rotatably connected to a second fixed plate, the second fixed plate is fixedly connected to the U-shaped fixed plate, a chain assembly is arranged on the side of the second fixed plate away from the first connecting rod, the chain assembly includes a chain and a sprocket, the sprocket connecting shaft in the chain assembly is rotatably connected to the second fixed plate, and the through end of the sprocket connecting shaft in the chain assembly is fixedly connected to a plurality of first connecting rods.

[0014] The utility model is further configured as follows: a first motor and a second motor are installed on one side of one of the U-shaped fixed plates, output ends of the first motor and the second motor are rotatably connected to the U-shaped fixed plate, the through end of the first motor is fixedly connected to the rotating rod, and the through end of the second motor is fixedly connected to one of the sprockets in the chain assembly.

[0015] Through the above technical solution, the water curtain can play a certain role in dust reduction and smoke isolation. In the early stage of a fire, the fire source may produce a lot of smoke. Water evaporates into water vapor, which can reduce the concentration of smoke and reduce its diffusion speed at the fire scene, helping to maintain sight and ensure the safe evacuation of personnel.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model realizes that the second motor and the first motor are operated simultaneously. The first motor drives the rotating rod to rotate, so that a plurality of second gears rotate at the same time, and the first gear rotates synchronously. When the first gear rotates, the second connecting rod slides in the connecting column in the first fixed plate, and the second connecting rod rotates relative to the first connecting rod. The nozzle on the other side of the first fixed plate rotates simultaneously with the second connecting rod, and the second motor drives the chain assembly to transmit, so that a plurality of first connecting rods rotate, and the second connecting rod rotates following the first connecting rod, forcing the nozzle to rotate. Due to the rotational connection between the annular tube and the nozzle, the annular tube is in rotation, and after the tap water in the water tank enters the annular tube through the hose, it is sprayed from the nozzle to form a water curtain, which can not only reduce the temperature, but also effectively isolate the fire source, reduce the direct contact of the flame with the surface of the fire door, and help suppress the speed of fire spread. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram from the first perspective of the present utility model;

[0019] Figure 2 This is a structural diagram of the utility model from a second viewing angle;

[0020] Figure 3 This is a front view of the top of the door panel of the utility model from a first perspective;

[0021] Figure 4 This is a front view of the top of the door panel of the utility model from a second viewing angle;

[0022] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0023] Figure 6 for Figure 3 A partial enlarged view of point A in the middle.

[0024] In the figure: 1. frame; 2. door panel; 3. L-shaped fixing plate; 4. water tank; 5. hose; 6. U-shaped fixing plate; 7. first motor; 8. second motor; 9. chain assembly; 10. annular tube; 11. first gear; 12. rotating rod; 13. first fixing plate; 14. second fixing plate; 15. first connecting rod; 16. second connecting rod; 17. nozzle; 18. second 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 6A steel heat-insulating fireproof door comprises a frame 1, a door panel 2 is hinged inside the frame 1, a plurality of U-shaped fixing plates 6 are fixedly connected to the top surface of the frame 1, a first motor 7 and a second motor 8 are installed on one side of one of the U-shaped fixing plates 6, the output ends of the first motor 7 and the second motor 8 are connected to the U-shaped fixing plate 6 through rotation, the through end of the first motor 7 is fixedly connected to the rotating rod 12, the through end of the second motor 8 is fixedly connected to one of the sprockets in the chain assembly 9, the plurality of U-shaped fixing plates 6 are linearly symmetrically distributed, an L-shaped fixing plate 3 is fixedly connected to the top of the U-shaped fixing plate 6, and the other end of the L-shaped fixing plate 3 is fixedly connected to the frame 1, the L-shaped fixing plate 3 A bidirectional insulated water curtain mechanism is arranged between the U-shaped fixing plate 6, and the bidirectional insulated water curtain mechanism includes a plurality of first gears 11, and the plurality of first gears 11 are respectively rotatably connected to the U-shaped fixing plate 6, and a second gear 18 is transmission-connected to one side of the first gear 11, and the second gear 18 is rotatably connected to the U-shaped fixing plate 6, and a rotating rod 12 is rotatably connected through the plurality of U-shaped fixing plates 6, and both ends of the rotating rod 12 are rotatably connected to the two U-shaped fixing plates 6, and the rotating rod 12 is fixedly connected to the second gear 18, and a first fixing plate 13 is fixedly connected to one side of the first gear 11, and a nozzle 17 is fixedly connected to one side of the connecting column in the first fixing plate 13, and the nozzle 17 is remote An annular tube 10 is rotatably connected to one side of the first fixed plate 13, a hose 5 is connected to the top of the annular tube 10, the hose 5 is connected to the water tank 4, the water tank 4 is installed on the top surface of the L-shaped fixed plate 3, a control module and a sensor are arranged on one side of the L-shaped fixed plate 3, the control module is electrically connected to the second motor 8 and the first motor 7, and the control module and the sensor are installed using the existing technology, a connecting column is rotatably connected to the middle of the first fixed plate 13, the connecting column in the middle of the first fixed plate 13 is slidably connected to a plurality of second connecting rods 16, and the plurality of second connecting rods 16 laterally limit the connecting column in the first fixed plate 13, and the second connecting rods 16 are connected to the second fixed plate 13. The other end of the rod 16 is rotatably connected to the first connecting rod 15, and the other end of the first connecting rod 15 is rotatably connected to the second fixed plate 14, the second fixed plate 14 is fixedly connected to the U-shaped fixed plate 6, and a chain assembly 9 is arranged on the side of the second fixed plate 14 away from the first connecting rod 15. The chain assembly 9 includes a chain and a sprocket, and the sprocket connecting shaft in the chain assembly 9 is rotatably connected to the second fixed plate 14, and the through end of the sprocket connecting shaft in the chain assembly 9 is fixedly connected to several first connecting rods 15, and the connection between the first connecting rod 15 and the second connecting rod 16 is located at the center of the first gear 11, and the connection direction between the first connecting rod 15 and the second connecting rod 16 is longitudinally arranged.

[0027] When the utility model is in use, when a fire occurs, the sensor in the house receives a signal, prompting the control module to drive the second motor 8 and the first motor 7, the second motor 8 and the first motor 7 are running, the first motor 7 drives the rotating rod 12 to rotate, so that a plurality of second gears 18 rotate at the same time, the first gear 11 rotates synchronously, and when the first gear 11 rotates, the second connecting rod 16 slides in the connecting column in the first fixing plate 13, and at the same time the second connecting rod 16 rotates relative to the first connecting rod 15, and the nozzle 17 on the other side of the first fixing plate 13 follows the second connecting rod 16. The connecting rod 16 rotates at the same time, and the second motor 8 drives the chain assembly 9 to transmit, so that the several first connecting rods 15 rotate, and the second connecting rod 16 rotates following the first connecting rod 15, forcing the nozzle 17 to rotate. Due to the rotational connection between the annular tube 10 and the nozzle 17, the annular tube 10 is in rotation, and the tap water in the water tank 4 enters the annular tube 10 through the hose 5, and is sprayed out from the nozzle 17 to form a water curtain, which reduces the transfer of heat, thereby reducing the temperature of the door, helping to protect the structure and thermal insulation effect of the door, and extending its effective fire protection time.

[0028] 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 heat-insulating fire door, comprising a frame (1), characterized in that: The frame (1) has a door panel (2) hingedly connected thereto; a plurality of U-shaped fixing plates (6) are fixedly connected to the top surface of the frame (1); the plurality of U-shaped fixing plates (6) are arranged in a linearly symmetrical distribution; an L-shaped fixing plate (3) is fixedly connected to the top of the U-shaped fixing plate (6); the other end of the L-shaped fixing plate (3) is fixedly connected to the frame (1); and a bidirectional insulating water curtain mechanism is arranged between the L-shaped fixing plate (3) and the U-shaped fixing plate (6).

2. A steel heat-insulating fire door according to claim 1, characterized in that: The bidirectional heat-insulating water curtain mechanism comprises a plurality of first gears (11), the plurality of first gears (11) being rotatably connected to the U-shaped fixing plates (6) respectively, one side of the first gear (11) being transmission-connected to a second gear (18), the second gear (18) being rotatably connected to the U-shaped fixing plates (6), a rotating rod (12) passing through and rotatably connected to the plurality of U-shaped fixing plates (6), two ends of the rotating rod (12) being rotatably connected to the two U-shaped fixing plates (6), the rotating rod (12) being fixedly connected to the second gear (18), one side of the first gear (11) being fixedly connected to a first fixing plate (13), and a connecting column being rotatably connected to the middle of the first fixing plate (13).

3. A steel heat-insulating fire door according to claim 2, characterized in that: A nozzle (17) is fixedly connected to one side of the connection column in the first fixed plate (13); a ring-shaped tube (10) is rotatably connected to the side of the nozzle (17) away from the first fixed plate (13); a hose (5) is connected to the top of the ring-shaped tube (10); the hose (5) is connected to a water tank (4); and the water tank (4) is mounted on the top surface of the L-shaped fixed plate (3).

4. A steel heat-insulating fire door according to claim 2, characterized in that: A plurality of second connecting rods (16) are slidably connected to a connecting column in the middle of the first fixed plate (13), and the plurality of second connecting rods (16) laterally limit the connecting column in the first fixed plate (13). The other end of the second connecting rod (16) is rotatably connected to the first connecting rod (15). The connection between the first connecting rod (15) and the second connecting rod (16) is located at the center of the first gear (11), and the connection direction between the first connecting rod (15) and the second connecting rod (16) is longitudinally arranged.

5. A steel heat-insulating fire door according to claim 4, characterized in that: The other end of the first connecting rod (15) is rotatably connected to a second fixing plate (14), the second fixing plate (14) is fixedly connected to the U-shaped fixing plate (6), a chain assembly (9) is arranged on the side of the second fixing plate (14) away from the first connecting rod (15), the chain assembly (9) comprises a chain and a sprocket, a sprocket connecting shaft in the chain assembly (9) is rotatably connected to the second fixing plate (14), and a through end of the sprocket connecting shaft in the chain assembly (9) is fixedly connected to a plurality of first connecting rods (15).

6. A steel heat-insulating fire door according to claim 5, characterized in that: A first motor (7) and a second motor (8) are mounted on one side of one of the U-shaped fixing plates (6); output ends of the first motor (7) and the second motor (8) are rotatably connected to the U-shaped fixing plate (6); a through end of the first motor (7) is fixedly connected to a rotating rod (12); and a through end of the second motor (8) is fixedly connected to one of the sprockets in the chain assembly (9).

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