Automatic cooling fireproof door and fireproof door cooling control method

Abstract

The invention relates to the technical field of fireproof doors, and provides an automatic cooling fireproof door which comprises a door frame, a door body and a cooling mechanism, and the cooling mechanism comprises a circulating pipe, a connecting mechanism and a water storage tank; a circulating pipe is arranged in the door body, and reinforcing plates are arranged on the two sides of the circulating pipe. The water storage tank is arranged below the ground, a plurality of heat exchange pipes are arranged on the periphery of the water storage tank, and the heat exchange pipes communicate with the interior of the water storage tank; the connecting mechanism is arranged at the bottom of the door frame and communicates with the water storage tank, and the connecting mechanism can communicate the water storage tank with the circulating pipe and lock the door body and the door frame in a fire disaster; the invention further discloses a fireproof door cooling control method. The low temperature of the soil layer on the lower portion of the building is used for cooling circulating water while the strength of the door body is guaranteed, and cooling is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of fire doors, and in particular to an automatic cooling fire door and a fire door cooling control method. Background Art

[0002] A fire door is a fireproof partition installed between fire compartments, evacuation stairs and other areas. It can prevent the spread of fire and smoke, and delay the spread of fire for a certain period of time to ensure that there is enough time to ensure the evacuation of personnel.

[0003] CN212689865U discloses a fire door that can prevent smoke from penetrating, comprising a fire door frame and a fire door body, wherein the fire door frame is fixedly mounted on a door opening in a wall, and one side of the fire door body is hinged to the fire door frame through a hinge; connected ventilation ducts are provided on the inner sides of the four sides of the fire door frame, a plurality of ventilation holes are provided on the four sides of the fire door frame, the ventilation holes are connected to the ventilation duct, an air outlet connected to the ventilation duct is provided at one of the corners of the fire door frame, the air outlet is connected to an air duct, and a fan is provided on the air duct; a smoke detection alarm is provided on the upper part of the fire door frame, the smoke detection alarm is electrically connected to a processor, and the processor is electrically connected to the fan.

[0004] CN115929180A discloses a water-circulating steel fire door, comprising a door frame and a door panel body, with a door handle and a door lock provided on the door panel body; further comprising a water circulation assembly, which comprises a circulating water pipe, a water inlet pipe, a water inlet reservoir, a rotating circulating pipe, a water outlet pipe and a water outlet reservoir; the rotating circulating pipe is installed on one side of the door panel body as the rotating axis of the door panel body, the upper and lower ends of the rotating circulating pipe are rotated and inserted into the door frame, the top surface of the door frame is provided with a water inlet reservoir, the ground surface of the door frame is provided with a water outlet reservoir, the upper and lower ends of the rotating circulating pipe are respectively connected to the water inlet reservoir and the water outlet reservoir; the water inlet pipe is connected to the water inlet reservoir, the water outlet pipe is connected to the water outlet reservoir, and the rotating circulating pipe is connected to the circulating water pipe.

[0005] In the existing technology, the cooling ability of fire doors is the key to delaying the spread of fire. Better cooling ability can ensure sufficient isolation time, thereby ensuring the full evacuation of personnel. Currently, fire doors are cooled by water cooling, but when the ambient temperature is high, it is difficult to maintain the low temperature of circulating water for a long time. The energy consumption of cooling equipment is high, and using the water pipe as the rotating shaft for installing the door body will affect the overall strength of the fire door body, posing certain safety hazards. Summary of the Invention

[0006] The present invention provides an automatic cooling fire door, which can timely circulate and cool the fire door, and lock the door body when supplying water, thereby further improving the strength of the door body.

[0007] In view of this, the present invention aims to provide an automatic cooling fire door. In the present invention, the fire door includes a door frame, a door body and a cooling mechanism, and the cooling mechanism includes a circulation pipe, a connecting mechanism and a water storage tank;

[0008] The door body is provided with an interlayer inside, the interlayer is provided with the circulation pipe, the water inlet and the water outlet of the circulation pipe are both provided at the bottom, and reinforcement plates are provided on both sides of the circulation pipe; the water storage tank is provided at the bottom of the door body and is installed below the ground, and a plurality of heat exchange pipes are provided around the water storage tank, and the heat exchange pipes are communicated with the interior of the water storage tank;

[0009] The connecting mechanism is arranged at the bottom of the door frame and is connected to the water tank. The connecting mechanism can connect the water tank and the circulation pipe and lock the door body and the door frame in case of fire.

[0010] By setting up a cooling mechanism, water can be driven to circulate and cool down inside the door body in case of fire, thereby improving the fire resistance of the fire door. By setting the water tank at the bottom of the ground, the low temperature of the soil layer below the building is used to cool the circulating water. Due to the low temperature in the soil layer, there is no need to set up cooling equipment to cool the water to achieve water circulation cooling; in conjunction with the setting of the heat exchange pipe, the water in the water tank is fully guided to various places to fully contact the soil layer for heat dissipation, which greatly shortens the cooling time of the water in the water tank, and the need for water circulation cooling can be met without setting up a large water tank; through the connection mechanism, in case of fire, not only can the circulation pipe and the water tank be connected to realize water circulation, but the door body and the door frame can also be locked to further improve the strength of the door body in case of fire.

[0011] In addition, the circulation pipe is fixed between two reinforcing plates to strengthen the protection of the circulation pipe, which can prevent the circulation pipe from being damaged by external forces and cause damage to the fire door structure, ensuring that the fire door can still maintain sufficient structural strength after the circulation pipe is installed.

[0012] Furthermore, a spraying member is provided on the top of the door body, and the spraying member includes a spraying plate rotatably mounted on the top of the door body, a first driving motor driving the spraying plate to rotate, and a flexible pipe connecting the circulation pipe and the spraying plate;

[0013] A spray cavity is provided in the spray plate, and a spray port is provided at the bottom; a valve body is provided on the flexible tube for opening and closing the flexible tube; and the spray port is closed in contact with the door body when the valve body is closed.

[0014] Through the setting of the spray parts, while the water circulates to cool down, the valve body on the flexible pipe is opened to input water into the spray plate, and the spray plate sprays the door body to achieve surface cooling.

[0015] Furthermore, the connecting mechanism is arranged in the bottom groove of the door frame, and the connecting mechanism includes an opening and closing plate, a water supply tank and a transmission mechanism; the opening and closing plate is slidably arranged on the door frame, and the opening and closing plate is controlled to move by a driving member;

[0016] The water supply tank is arranged at the bottom of the door frame. The bottom of the water supply tank is connected to the water tank through a telescopic tube, and a connecting pipe is provided on the top; through holes are provided on the opening and closing plate and the door frame, and the connecting pipe is passed through the through holes to connect with the circulation pipe; the transmission mechanism can drive the water supply tank to rise and fall when the opening and closing plate moves.

[0017] Through the setting of the connecting mechanism, the connecting pipe is driven to rise and fall by moving the opening and closing plate. When there is no water supply, the through hole is closed to seal and prevent impurities from entering. When water is supplied, the movement of the connecting pipe is controlled to realize water circulation. At the same time, connecting the connecting pipe with the circulation pipe can prevent the door body from opening and lock the door body and the door frame.

[0018] Furthermore, the opening and closing plate is controlled by the driving member to be in a closed state and a water supply state;

[0019] In the closed state, the through hole on the opening and closing plate is misaligned with the through hole on the door frame, and the opening and closing plate closes the through hole on the door frame;

[0020] In the water supply state, the through hole on the opening and closing plate is connected to the through hole on the door frame, and the connecting pipe on the water supply tank can pass through the through hole upward to the upper end of the door frame;

[0021] Among them, the driving part includes a sliding sleeve, a return spring, a second driving motor and an eccentric plate. The opening and closing plate is slidably installed on the door frame through the sliding sleeve. The return spring is connected to the sliding sleeve and one end of the opening and closing plate for resetting the opening and closing plate; the second driving motor is installed in the door frame and connected to one end of the eccentric plate. When the eccentric plate rotates, it can push the opening and closing plate to move.

[0022] The setting of the driving part drives the eccentric plate to rotate by rotating the second driving motor, pushing the opening and closing plate to overcome the elastic force of the return spring so that the connecting pipe can rise for connection, and the control is stable.

[0023] Furthermore, the transmission mechanism includes a first tooth plate, a second tooth plate, a first transmission gear and a second transmission gear, the first tooth plate is arranged at the bottom of the opening and closing plate, the second tooth plate is arranged at the side of the water supply tank, and the door frame is provided with a sliding groove for the first tooth plate to pass through;

[0024] The first transmission gear and the second transmission gear are coaxially arranged and mounted on the door frame via a rotating shaft. The first tooth plate is engaged with the first transmission gear for transmission, and the second tooth plate is engaged with the second transmission gear for transmission.

[0025] The linkage between the opening and closing plate and the connecting pipe is achieved through the transmission between multiple tooth plates and gears.

[0026] Furthermore, a camera mechanism is provided on both sides of the door body, and the camera mechanism is used to remotely capture images on both sides of the door body for monitoring;

[0027] The camera mechanism includes a positioning slot, a flip frame and a panoramic camera arranged in the flip frame. The positioning slot is opened on the side of the door body. The flip frame is installed in the positioning slot by rotating through a rotating shaft and can be flipped in the positioning slot. Fireproof glass is provided on both sides of the flip frame.

[0028] The setting of the camera mechanism can realize the real-time image transmission in daily life and during fire, and realize the function of remotely understanding the fire situation.

[0029] Furthermore, a smoke exhaust unit is arranged in the door body, and the smoke exhaust unit includes an air suction hood, an air suction groove, an exhaust pipe and a linkage unit. The air suction hood is arranged in the door body at the upper end of the positioning groove, and the air suction groove is opened on the inner wall of the positioning groove, and the air suction groove connects the air suction hood and the positioning groove; one end of the exhaust pipe is connected to the air suction hood, and the other end is connected to the outside atmosphere; the linkage unit is used to synchronously drive the air suction hood to generate adsorption force when water is transported in the circulation pipe.

[0030] A smoke exhaust unit is set up, and the suction slot of the smoke exhaust unit is combined with the positioning slot. When the camera mechanism is flipped and switched to a different state during a fire, the suction slot is opened to perform smoke exhaust work while avoiding obstruction of the camera mechanism.

[0031] Furthermore, the linkage unit includes a transmission shaft, a first spiral leaf, a second spiral leaf, a first incomplete bevel gear, a second incomplete bevel gear and a transmission bevel gear; the first spiral leaf and the second spiral leaf are respectively arranged in the circulation pipe and the exhaust pipe, and the first spiral leaf and the second spiral leaf are respectively arranged at both ends of the transmission shaft;

[0032] The first incomplete bevel gear and the second incomplete bevel gear are centrally symmetrically arranged on the transmission shaft; the two ends of the transmission bevel gear are respectively engaged with the first incomplete bevel gear and the second incomplete bevel gear for transmission, and the upper end of the transmission bevel gear is connected to a swing rod, and a swing platform is set at the upper end of the swing rod, and the spray plate is set on the swing platform.

[0033] By setting up the linkage unit, the smoke exhaust work can be synchronously driven during the water circulation and the sprinkler mechanism can be driven to perform a swinging sprinkler action.

[0034] A fire door temperature control method, applicable to the above-mentioned fire door, comprising:

[0035] Obtaining temperature values ​​of multiple areas, and determining whether the corresponding areas are in a fire scene based on the temperature values;

[0036] When it is determined that the area is in a fire scene, the fire doors in the area start the cooling program;

[0037] In response to the cooling program, circulating water is delivered to the circulation pipe in the fire door to cool the fire door;

[0038] The temperature change rate in the area is obtained, and the supply rate of the circulating water is adjusted according to the temperature change rate.

[0039] Furthermore, it also includes:

[0040] Obtaining a temporary temperature value after starting the cooling program, and when the temporary temperature value cannot be reduced for a long time, increasing the supply rate of the circulating water and starting the spraying program;

[0041] In response to the spraying program, the side of the fire door is sprayed by the spraying member to cool the surface of the fire door.

[0042] The automatic cooling fire door and the fire door cooling control method disclosed in the present invention drive water to circulate and cool the inside of the door body in the event of a fire by setting a cooling mechanism, thereby improving the fire protection ability of the fire door. The water tank is set at the bottom of the ground, and the low temperature of the soil layer below the building is used to cool the circulating water. Due to the low temperature in the soil layer, there is no need to set up cooling equipment to cool the water to achieve water circulation cooling; with the setting of the heat exchange pipe, the water in the water tank is fully guided to various places to fully contact the soil layer for heat dissipation, which greatly shortens the cooling time of the water in the water tank, and the need for water circulation cooling can be met without setting up a large-volume water tank.

[0043] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0045] Figure 1 This is a schematic structural diagram of a fire door in one embodiment of the present invention;

[0046] Figure 2 This is a connection diagram of a cooling mechanism in one embodiment of the present invention;

[0047] Figure 3 This is a schematic structural diagram of a circulation pipe in one embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of the water supply state of the connecting mechanism in one embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of a closed state of a connecting mechanism in one embodiment of the present invention;

[0050] Figure 6 A schematic top view of a connecting mechanism in one embodiment of the present invention;

[0051] Figure 7 A schematic diagram of the connection between the first transmission gear and the second transmission gear in one embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the installation of an air suction hood in one embodiment of the present invention;

[0053] Figure 9 is a partial cross-sectional schematic diagram of a smoke exhaust unit in one embodiment of the present invention;

[0054] Figure 10 Schematic diagram of the structure of the linkage unit in one embodiment of the present invention.

[0055] Description of reference numerals:

[0056] 1. Door frame; 2. Door body; 21. Fireproof hinge; 22. Fireproof lock; 3. Cooling mechanism; 31. Circulation pipe; 32. Reinforcement plate; 33. Water storage tank; 34. Heat exchange pipe; 35. Opening and closing plate; 351. Through hole; 36. Water supply tank; 37. Connecting pipe; 38. Driving element; 381. Sliding sleeve; 382. Return spring; 383. Second driving motor; 384. Eccentric plate; 39. Transmission mechanism; 391. First gear plate; 392. Second gear plate; 393. First transmission gear; 394. Second transmission gear Drive gear; 4. Camera mechanism; 41. Positioning slot; 42. Flip frame; 43. Panoramic camera; 44. Fireproof glass; 5. Smoke exhaust unit; 51. Suction hood; 52. Suction slot; 53. Exhaust duct; 6. Linkage unit; 61. Drive shaft; 62. First spiral leaf; 63. Second spiral leaf; 64. First incomplete bevel gear; 65. Second incomplete bevel gear; 66. Drive bevel gear; 67. Swing rod; 7. Spray part; 71. Spray plate; 72. Flexible tube; 73. First drive motor. DETAILED DESCRIPTION

[0057] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0058] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding.

[0060] In the existing technology, the cooling ability of fire doors is the key to delaying the spread of fire. Better cooling ability can ensure sufficient isolation time, thereby ensuring the full evacuation of personnel. At present, fire doors are cooled by water cooling, but when the ambient temperature is high, it is difficult to maintain the low temperature of circulating water for a long time, and the energy consumption of cooling equipment is high. In addition, using the water pipe as the rotating shaft for installing the door body 2 will affect the overall strength of the fire door body 2, which is easily impacted or broken by external force, causing damage to the door body 2 and affecting the fire protection performance, and there are certain safety hazards.

[0061] The present invention provides an automatic cooling fire door, which is mainly used in basements and stairwells, where circulating water can be transported in time. Figure 1 and Figure 2As shown, in this embodiment, the fire door includes a door frame 1, a door body 2 and a cooling mechanism 3. The door frame 1 is embedded in the wall to support the door body 2; the door body 2 is installed on the door frame 1 through a fireproof hinge 21, and a fireproof lock 22 and a door closer are also provided. At the same time, expansion sealing strips are provided at the gaps and joints between the door frame 1 and the door body 2 to fill the gaps and block smoke in case of fire; the cooling mechanism 3 includes a circulation pipe 31, a connecting mechanism and a water tank 33; an interlayer is provided inside the door body 2, and the interlayer is provided between the fireproof materials. A circulation pipe 31 is provided in the interlayer for conveying and circulating water; the circulation pipe 31 is serpentinely provided inside the door body 2, and the water inlet and outlet of the circulation pipe 31 are both provided at the bottom, and the circulation pipe 31 is connected to the water tank 33 from the bottom for circulation; the output end of the water tank 33 is connected to the pump body as the conveying power for circulating water; as shown Figure 3 As shown, reinforcing plates 32 are provided on both sides of the circulation pipe 31, and the reinforcing plates 32 are provided with fireproof materials. The circulation pipe 31 is connected to the reinforcing plates 32 at all places to stably protect and fix the circulation pipe 31, so as to prevent the door body 2 from being hit during a fire and causing the circulation pipe 31 to rupture, and then causing the door body 2 to rupture and be damaged from the inside; the water tank 33 is provided at the bottom of the door body 2, and the water tank 33 is pre-buried at the bottom of the door body 2 during installation. The water tank 33 is installed below the building ground and is located in the soil layer and is in full contact with the soil; a number of heat exchange tubes 34 are provided around the water tank 33, and the heat exchange tubes 34 are inserted between the soil layers to fully contact with the soil for heat dissipation, and the heat exchange tubes 34 are provided to be connected to the interior of the water tank 33, so that the water in the water tank can enter each heat exchange tube 34 for full heat dissipation.

[0062] By setting up the cooling mechanism 3, water is driven to circulate and cool down inside the door body 2 during a fire, thereby improving the fire resistance of the fire door. By setting the water tank 33 at the bottom of the ground, the low temperature of the soil layer below the building is used to cool the circulating water. Due to the low temperature in the soil layer, there is no need to set up cooling equipment to cool the water to achieve water circulation cooling; in conjunction with the setting of the heat exchange tube 34, the water in the water tank 33 is fully guided to various places to fully contact the soil layer for heat dissipation, which greatly shortens the cooling time of the water in the water tank 33, and the need for water circulation cooling can be met without setting up a large-volume water tank 33.

[0063] Regarding the connecting mechanism, the connecting mechanism is arranged at the bottom of the door frame 1, which does not affect the opening and closing of the door body 2 under normal use; the connecting mechanism is always connected to the water tank 33 to maintain the supply of circulating water, and the connecting mechanism is connected to the circulation pipe 31 when cooling is required, that is, the connecting mechanism can connect the water tank 33 and the circulation pipe 31 in case of fire, and at the same time, the connecting mechanism can lock the door body 2 and the door frame 1 when connecting the circulation pipe 31, restricting the opening of the door body 2; the connecting mechanism is arranged in the bottom groove of the door frame 1 to avoid affecting the walking when the door body 2 is opened; Figure 4 、 Figure 5 and Figure 6 As shown, the connecting mechanism includes an opening and closing plate 35, a water supply tank 36 and a transmission mechanism 39; the opening and closing plate 35 is slidably arranged on the door frame 1, and one end of the opening and closing plate 35 is connected to the driving member 38, so that the opening and closing plate 35 is controlled by the driving member 38 to move on the door frame 1.

[0064] Among them, the water supply tank 36 is arranged at the bottom of the door frame 1, the bottom of the water supply tank 36 is connected to the water tank 33 through a telescopic tube, and a connecting pipe 37 is arranged on the top; the opening and closing plate 35 and the door frame 1 are both provided with through holes 351, and the through holes 351 are for the connecting pipe 37 to pass through and connect with the circulation pipe 31; the transmission mechanism 39 can drive the water supply tank 36 to rise and fall when the opening and closing plate 35 moves; the upper end of the connecting pipe 37 is provided with an interface, which is inserted into the circulation pipe 31 to connect to the water supply, and the connecting pipe 37 is provided with two connecting pipes that are respectively connected to the inlet and outlet ends of the circulation pipe 31.

[0065] Correspondingly, due to the movement of the opening and closing plate 35, the state of the opening and closing plate 35 is divided into a closed state and a water supply state; in the closed state, the door body 2 is opened normally, the through hole 351 on the opening and closing plate 35 is misaligned with the through hole 351 on the door frame 1, and the opening and closing plate 35 closes the through hole 351 on the door frame 1, that is, the connecting pipe 37 cannot pass through the through hole 351; in the water supply state, the through hole 351 on the opening and closing plate 35 is connected with the through hole 351 on the door frame 1, and the door body 2 is in a closed state, and the connecting pipe 37 on the water supply tank 36 can pass through the through hole 351 upward, and connect to the circulation pipe 31 upward to supply water to the circulation pipe 31.

[0066] Regarding the driving member 38, the driving member 38 is configured as a sliding sleeve 381, a return spring 382, ​​a second driving motor 383 and an eccentric plate 384. The opening and closing plate 35 is slidably installed on the door frame 1 through the sliding sleeve 381. The moving direction of the opening and closing plate 35 is limited by the sliding sleeve 381 to prevent it from deviating during movement and causing the through hole 351 to be unable to align; the return spring 382 is arranged on the side of the sliding sleeve 381 facing the driving member 38, and the two ends of the return spring 382 are connected to the sliding sleeve 381 and the opening and closing plate 35. The return spring 382 can After the plate 35 moves, the opening and closing plate 35 is reset; the second drive motor 383 is installed in the door frame 1, and the output shaft of the second drive motor 383 is connected to one end of the eccentric plate 384, so that the eccentric plate 384 can push the opening and closing plate 35 to move when it rotates; by rotating the second drive motor 383 to drive the eccentric plate 384 to rotate, the opening and closing plate 35 is pushed to overcome the elastic force of the reset spring 382 to move, so that the through holes 351 on the door frame 1 and the opening and closing plate 35 are aligned, so that the connecting pipe 37 can rise for connection, and the control is simple and stable.

[0067] Through the connecting mechanism, the opening and closing plate 35 is moved to drive the connection pipe 37 to rise and fall. When there is no water supply in daily use, the through hole 351 is closed and sealed by the opening and closing plate 35 to prevent impurities from entering the connection pipe 37 through the through hole 351; in the event of a fire, the through hole 351 is opened by moving the opening and closing plate 35, which not only enables the circulation pipe 31 to be connected with the water tank 33 to realize water circulation and circulate the door body 2 for cooling, but also, due to the movement of the connection pipe 37 and the connection with the circulation pipe 31 in the door body 2, the door body 2 and the door frame 1 can be locked through the connection between the circulation pipe 31 and the connection pipe 37. In addition to the locking of the door body 2 by the door lock, the bottom of the door body 2 is also locked to prevent accidental breakage, thereby further improving the strength of the door body 2 during a fire.

[0068] Regarding the transmission mechanism 39, Figure 7 As shown, the transmission mechanism 39 is provided with a first tooth plate 391, a second tooth plate 392, a first transmission gear 393 and a second transmission gear 394; the first tooth plate 391 is fixed to the bottom of the opening and closing plate 35, and a corresponding sliding groove for the first tooth plate 391 to pass through is opened on the door frame 1, and the first tooth plate 391 can slide in the sliding groove, and the second tooth plate 392 is vertically arranged on the side of the water supply tank 36; the first transmission gear 393 and the second transmission gear 394 are coaxially arranged and are rotatably installed on the door frame 1 through a rotating shaft, so as to realize the synchronous rotation of the first transmission gear 393 and the second transmission gear 394, wherein the first tooth plate 391 is meshed with the first transmission gear 393 for transmission, and the second tooth plate 392 is meshed with the first transmission gear 393 for transmission, The two transmission gears 394 are engaged for transmission; the movement of the opening and closing plate 35 drives the first tooth plate 391 to move, thereby driving the first transmission gear 393 to rotate, and synchronously driving the second transmission gear 394 to rotate, and then driving the second tooth plate 392 to move, driving the water supply tank 36 and the connecting pipe 37 thereon to move upward, so that the connecting pipe 37 passes through the through hole 351 and is connected to the circulation pipe 31; through the transmission between multiple tooth plates and gears, the linkage between the opening and closing plate 35 and the connecting pipe 37 is realized, so that when the opening and closing plate 35 moves, the through hole 351 is opened and the connecting pipe 37 can pass through the through hole 351 to connect to the circulation pipe 31. In order not to affect the continuous rise of the connecting pipe 37, the through hole 351 on the opening and closing plate 35 is set to a strip structure.

[0069] In order to further improve the cooling effect on the door body 2, as Figure 3As shown, a spray member 7 is provided on the top of the door body 2, and the spray member 7 is used to spray the surface of the door body 2 and the side of the door body 2. The spray member 7 is set as a spray plate 71, a first drive motor 73 and a flexible tube 72. The spray plate 71 is rotatably installed on the top of the door body 2, and the first drive motor 73 is installed in the door body 2 and connected to the spray plate 71. The spray plate 71 is driven to rotate by the first drive motor 73. The flexible tube 72 is used to connect the circulation pipe 31 and the spray plate 71 so that the circulating water in the circulation pipe 31 can enter the spray plate 71 for spraying. 2 is provided with a trough body matching the shape of the spray plate 71 at the top; a spray chamber is provided in the spray plate 71, and a spray port is provided at the bottom of the spray plate 71 for spraying; a valve body is provided on the flexible tube 72 for opening and closing the flexible tube 72, that is, when the valve body is not opened, the circulating water in the circulation tube 31 flows back to the water storage tank 33 for repeated circulation; when the valve body is opened, at least part of the water in the circulation tube 31 enters the flexible tube 72 and is sprayed by the spray plate 71; when the valve body is closed, the spray port rotates to fit with the door body 2, closing the spray port on the spray plate 71 to prevent impurities from clogging the spray port.

[0070] Through the setting of the spray part 7, while the water circulates to cool down, the valve body on the flexible tube 72 can be opened to input water into the spray plate 71, and the spray plate 71 sprays the surface and side of the door body 2 to cool down the surface of the door body 2 and extinguish the open flame near the side. The door body 2 can be further cooled, the fire resistance of the door body 2 can be improved, and the clarity of the shooting of the camera unit 4 can be guaranteed.

[0071] In order to obtain the images of the fire scene in real time and judge the degree of urgency, a camera mechanism 4 is set on both sides of the door body 2. The camera mechanism 4 shoots the images of both sides of the door body 2 and transmits them remotely to the display end for display to monitor the fire situation. The camera mechanism 4 is set as a positioning slot 41, a flip frame 42 and a panoramic camera 43. A positioning slot 41 is opened on the side of the door body 2. The positioning slot 41 is opened on the fireproof board of the door body 2. The flip frame 42 is installed in the positioning slot 41 by rotating the shaft. The flip frame 42 can flip in the positioning slot 41. The shaft is horizontally installed in the middle of the positioning slot 41. The panoramic camera 43 is set inside the flip frame 42. The panoramic camera 43 can shoot on both sides without turning, that is, it can still shoot stably after the flip frame 42 is rotated. Fireproof glass 44 is set on both sides of the flip frame 42, which can ensure fire prevention while allowing the camera to shoot. Through the setting of the camera mechanism 4, the function of remotely understanding the fire situation can be realized. It can realize real-time image transmission in daily life and during fire.

[0072] A smoke exhaust unit 5 is provided inside the door body 2 to exhaust the smoke from the side of the door body 2, thereby ensuring a clear picture and reducing the smoke in the room; Figure 8 and Figure 9 As shown, the smoke exhaust unit 5 is configured as an air suction hood 51, an air suction groove 52, an exhaust pipe 53 and a linkage unit 6, the air suction hood 51 is arranged inside the door body 2, and the dust hood is arranged at the upper end of the positioning groove 41 to perform suction work, the air suction groove 52 is opened on the inner wall of the positioning groove 41, and the air suction hood 51 and the positioning groove 41 are connected through the air suction groove 52; the exhaust pipe 53 is arranged inside the door body 2, one end of the exhaust pipe 53 is set to be connected to the air suction hood 51, and the other end of the exhaust pipe is connected to the outside atmosphere, so that the smoke can pass through the air suction groove 52, the air suction hood 51 and the exhaust pipe 53 in sequence and be discharged to the outside; similarly, a connecting mechanism is set at the top of the exhaust pipe to connect the exhaust pipe to the outside atmosphere, and the upper end of the door body 2 is locked. Since the connecting mechanism has been explained in detail, it will not be repeated here.

[0073] Regarding the linkage unit 6, the linkage unit 6 is used to synchronously drive the suction hood 51 to generate adsorption force to adsorb the flue gas when the circulating water is transported in the circulation pipe 31; Figure 10As shown, the linkage unit 6 is provided with a transmission shaft 61, a first spiral page 62, a second spiral page 63, a first incomplete bevel gear 64, a second incomplete bevel gear 65 and a transmission bevel gear 66; the first spiral page 62 and the second spiral page 63 are respectively provided inside the circulation pipe 31 and the exhaust pipe 53, and the first spiral page 62 and the second spiral page 63 are respectively provided at both ends of the transmission shaft 61; that is, the two ends of the transmission shaft 61 are respectively inserted into the circulation pipe 31 and the exhaust pipe 53 and the first spiral page 62 and the second spiral page 63 are respectively provided. 3 connection; the first incomplete bevel gear 64 and the second incomplete bevel gear 65 are centrally symmetrically arranged on the transmission shaft 61, and the first incomplete bevel gear 64 and the second incomplete bevel gear 65 are located between the first spiral page 62 and the second spiral page 63; the two ends of the transmission bevel gear 66 are respectively engaged with the first incomplete bevel gear 64 and the second incomplete bevel gear 65 for transmission, and the upper end of the transmission bevel gear 66 is connected to a swing rod 67, and a swing table is set on the upper end of the swing rod 67, and a spray plate 71 and the first incomplete bevel gear 65 are set on the swing table. A driving motor 73, the spray plate 71 is mounted on the swing platform through the rotating shaft and is controlled by the first driving motor 73 to rotate on the swing platform; the flow of circulating water in the circulation pipe 31 drives the first spiral leaf 62 to rotate, drives the transmission shaft 61 to rotate, and the transmission shaft 61 drives the second spiral leaf 63 to rotate to generate negative pressure in the exhaust pipe 53, drives the smoke outside the door body 2 into the suction groove 52, enters the suction hood 51 and is discharged from the discharge pipe; at the same time, when the transmission shaft 61 rotates, it drives the first incomplete bevel gear 64 and the second The incomplete bevel gear 65 rotates. When the first incomplete bevel gear 64 and the second incomplete bevel gear 65 rotate, the first incomplete bevel gear 64 and the second incomplete bevel gear 65 alternately drive the transmission bevel gear 66 to rotate, driving the transmission bevel gear 66 to repeatedly rotate forward and reverse, thereby driving the swing platform and the spray plate 71 to repeatedly swing left and right, switching the spraying state from static to swinging spraying, improving the spraying effect, thereby improving the cooling effect on the outside of the door body 2, and being able to fully extinguish the open flame on the edge of the door body 2.

[0074] By setting up the smoke exhaust unit 5, the smoke exhaust pipe can be driven to perform smoke exhaust work simultaneously during water circulation, thereby reducing the accumulation of indoor smoke; at the same time, the smoke exhaust unit 5 is fully combined with the positioning groove 41, and the suction groove 52 is sealed when there is no fire. In the event of a fire, the camera mechanism 4 flips over to open the suction groove 52, and can perform smoke exhaust work normally, while avoiding obstruction of the camera mechanism 4. At the same time, since the smoke floats upward, rotating the camera mechanism 4 to the lower end can ensure a sufficient shooting field of view, and in conjunction with the smoke exhaust unit 5, the smoke outside the camera mechanism 4 can be discharged to avoid serious obstruction; and in conjunction with the linkage unit 6, the sprinkler mechanism is driven to perform a swinging spraying action when exhausting smoke, thereby improving the cooling effect on the door body 2.

[0075] The present invention also discloses a fire door cooling control method, which is applicable to the above-mentioned fire door. The fire door cooling control method includes:

[0076] Divide the building into multiple areas, obtain the temperature values ​​of multiple areas through temperature sensors, and determine whether the corresponding areas are in a fire scene based on the temperature values;

[0077] When the corresponding area is determined to be in a fire scene, the fire doors in the area will start the cooling program;

[0078] In response to the cooling program, circulating water is delivered to the circulation pipe in the fire door to cool the fire door;

[0079] At the same time, the temperature change rate in the area is obtained, and the supply rate of circulating water is adjusted according to the temperature change rate.

[0080] The fire door temperature reduction control method further includes:

[0081] Obtain the temporary temperature value after the cooling program is started. If the temporary temperature value cannot be reduced for a long time, it means that the cooling rate of the water circulation is still unable to reduce the temperature rise rate of the fire door during a fire. Increase the supply rate of the circulating water and start the spraying program;

[0082] In response to the spraying program, the sides of the fire door are sprayed by the spraying member to cool the surface of the fire door and extinguish the open fire near the fire door.

[0083] Among them, based on the temperature value, it is judged whether the corresponding area is in a fire scene, and the temperature value is compared with the corresponding threshold. When the temperature value in the corresponding area is greater than or equal to the threshold, the area is determined to be in a fire scene, and the image of the corresponding area is read by the camera mechanism for secondary confirmation; adjusting the supply rate of circulating water according to the temperature change rate means obtaining the temperature change rate and the temperature rise and fall area. When the temperature maintains an upward trend, the supply rate of circulating water is continuously increased. When the temperature maintains a downward trend, the temperature change rate, that is, the cooling rate, is obtained. When the cooling rate is slow, the supply rate of circulating water is increased to increase the cooling rate of the fire door. When the cooling rate is fast, the supply rate of circulating water is reduced.

[0084] By setting up the fire door cooling control method, the fire doors in the fire area can be cooled in time, and the water circulation rate can be controlled to match the cooling rate with the rate at which the fire doors are affected by the fire. Different cooling rates can be stably applied to each fire door, thereby improving the overall stability of the cooling.

[0085] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An automatic cooling fire door, characterized in that: It comprises a door frame (1), a door body (2) and a cooling mechanism (3), wherein the cooling mechanism (3) comprises a circulation pipe (31), a connecting mechanism and a water storage tank (33); An interlayer is provided inside the door body (2), and the circulation pipe (31) is provided inside the interlayer. The water inlet and the water outlet of the circulation pipe (31) are both provided at the bottom, and reinforcing plates (32) are provided on both sides of the circulation pipe (31); the water storage tank (33) is provided at the bottom of the door body (2) and installed below the ground, and a plurality of heat exchange pipes (34) are provided around the periphery of the water storage tank (33), and the heat exchange pipes (34) are communicated with the interior of the water storage tank (33); The connecting mechanism is arranged at the bottom of the door frame (1) and is connected to the water storage tank (33). The connecting mechanism can connect the water storage tank (33) and the circulation pipe (31) in the event of a fire and lock the door body (2) and the door frame (1).

2. The automatic cooling fire door according to claim 1, characterized in that: A spraying member (7) is provided on the top of the door body (2), and the spraying member (7) comprises a spraying plate (71) rotatably mounted on the top of the door body (2), a first driving motor (73) for driving the spraying plate (71) to rotate, and a flexible pipe (72) connecting the circulation pipe (31) and the spraying plate (71); A spray cavity is provided in the spray plate (71), and a spray port is provided at the bottom; a valve body is provided on the flexible tube (72) for opening and closing the flexible tube (72); and the spray port is closed by fitting with the door body (2) when the valve body is closed.

3. The automatic cooling fire door according to claim 1 or 2, characterized in that: The connecting mechanism is arranged in the bottom sink of the door frame (1), and the connecting mechanism includes an opening and closing plate (35), a water supply tank (36) and a transmission mechanism (39); the opening and closing plate (35) is slidably arranged on the door frame (1), and the opening and closing plate (35) is controlled to move by a driving member (38); The water supply bin (36) is arranged at the bottom of the door frame (1), the bottom of the water supply bin (36) is connected to the water storage tank (33) through a telescopic tube, and a connecting pipe (37) is arranged on the top; the opening and closing plate (35) and the door frame (1) are both provided with through holes (351), and the through holes (351) allow the connecting pipe (37) to pass through and connect with the circulation pipe (31); the transmission mechanism (39) can drive the water supply bin (36) to rise and fall when the opening and closing plate (35) moves.

4. The automatic cooling fire door according to claim 3, characterized in that: The opening and closing plate (35) is controlled by the driving member (38) to be in a closed state and a water supply state; In the closed state, the through hole (351) on the opening and closing plate (35) is misaligned with the through hole (351) on the door frame (1), and the opening and closing plate (35) closes the through hole (351) on the door frame (1); In the water supply state, the through hole (351) on the opening and closing plate (35) is connected to the through hole (351) on the door frame (1), and the connecting pipe (37) on the water supply tank (36) can pass through the through hole (351) upward to the upper end of the door frame (1); The driving member (38) comprises a sliding sleeve (381), a return spring (382), a second driving motor (383) and an eccentric plate (384); the opening and closing plate (35) is slidably mounted on the door frame (1) through the sliding sleeve (381); the return spring (382) is connected to the sliding sleeve (381) and one end of the opening and closing plate (35) for resetting the opening and closing plate (35); the second driving motor (383) is mounted in the door frame (1) and connected to one end of the eccentric plate (384); and the eccentric plate (384) can push the opening and closing plate (35) to move when the eccentric plate (384) rotates.

5. The automatic cooling fire door according to claim 3, characterized in that: The transmission mechanism (39) comprises a first tooth plate (391), a second tooth plate (392), a first transmission gear (393) and a second transmission gear (394); the first tooth plate (391) is arranged at the bottom of the opening and closing plate (35); the second tooth plate (392) is arranged at the side of the water supply tank (36); and a sliding groove for the first tooth plate (391) to pass through is provided on the door frame (1); The first transmission gear (393) and the second transmission gear (394) are coaxially arranged and mounted on the door frame (1) via a rotating shaft; the first tooth plate (391) meshes with the first transmission gear (393) for transmission, and the second tooth plate (392) meshes with the second transmission gear (394) for transmission.

6. The automatic cooling fire door according to claim 2, characterized in that: Camera mechanisms (4) are provided on both sides of the door body (2), and the camera mechanisms (4) are used to remotely capture images of both sides of the door body (2) for monitoring; The camera mechanism (4) comprises a positioning groove (41), a flip frame (42) and a panoramic camera (43) arranged in the flip frame (42); the positioning groove (41) is provided on the side of the door body (2); the flip frame (42) is installed in the positioning groove (41) by rotating through a rotating shaft and can be flipped in the positioning groove (41); and fireproof glass (44) is provided on both sides of the flip frame (42).

7. The automatic cooling fire door according to claim 6, characterized in that: A smoke exhaust unit (5) is provided in the door body (2), and the smoke exhaust unit (5) comprises an air suction hood (51), an air suction groove (52), an exhaust pipe (53) and a linkage unit (6). The air suction hood (51) is provided in the door body (2) at the upper end of the positioning groove (41), the air suction groove (52) is opened on the inner wall of the positioning groove (41), and the air suction groove (52) is connected to the air suction hood (51) and the positioning groove (41); one end of the exhaust pipe (53) is connected to the air suction hood (51), and the other end is connected to the outside atmosphere; the linkage unit (6) is used for synchronously driving the air suction hood (51) to generate adsorption force when water is transported in the circulation pipe (31).

8. The automatic cooling fire door according to claim 7, characterized in that: The linkage unit (6) comprises a transmission shaft (61), a first spiral leaf (62), a second spiral leaf (63), a first incomplete bevel gear (64), a second incomplete bevel gear (65) and a transmission bevel gear (66); the first spiral leaf (62) and the second spiral leaf (63) are respectively arranged in the circulation pipe (31) and the exhaust pipe (53); the first spiral leaf (62) and the second spiral leaf (63) are respectively arranged at both ends of the transmission shaft (61); The first incomplete bevel gear (64) and the second incomplete bevel gear (65) are centrally symmetrically arranged on the transmission shaft (61); the two ends of the transmission bevel gear (66) are respectively meshed with the first incomplete bevel gear (64) and the second incomplete bevel gear (65) for transmission; the upper end of the transmission bevel gear (66) is connected to a swing rod (67); the upper end of the swing rod (67) is provided with a swing platform, and the spray plate (71) is provided on the swing platform.

9. A fire door temperature control method, applicable to the fire door according to claim 1, characterized in that: include: Obtaining temperature values ​​of multiple areas, and determining whether the corresponding areas are in a fire scene based on the temperature values; When it is determined that the area is in a fire scene, the fire doors in the area start the cooling program; In response to the cooling program, circulating water is delivered to the circulation pipe in the fire door to cool the fire door; The temperature change rate in the area is obtained, and the supply rate of the circulating water is adjusted according to the temperature change rate.

10. The fire door temperature reduction control method according to claim 9, characterized in that: Also includes: Obtaining a temporary temperature value after starting the cooling program, and when the temporary temperature value cannot be reduced for a long time, increasing the supply rate of the circulating water and starting the spraying program; In response to the spraying program, the side of the fire door is sprayed by the spraying member to cool the surface of the fire door.

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