Fireproof door with intelligent detection function

Abstract

The invention discloses a fireproof door with an intelligent detection function, and relates to the field of fireproof doors. The fireproof door with the intelligent detection function comprises a door frame and a fireproof door body, a door closing lock is installed on one side of the fireproof door body, a hydraulic door closer is installed between the top end of the fireproof door body and the door frame, an intelligent detection unit is installed at the top of the door frame, and an electric boosting unit is installed in the fireproof door body. According to the fireproof door with the intelligent detection function, when a high-precision recognition camera monitors that a person gets close to the fireproof door body, a boosting signal is given out, at the moment, an electric hydraulic cylinder is started, the output end of the electric hydraulic cylinder slowly stretches out, a spring bolt is boosted to move, the resistance of a door screwing handle is reduced, then the electric hydraulic cylinder continues to conduct output, and a driving shaft is driven to rotate; the damping effect of the reset spring and the hydraulic oil when the fireproof door body is opened is reduced, and the effect of assisting door opening can be achieved no matter when people pass through the fireproof door body in daily life or a fire occurs.

Description

Technical Field

[0001] The present invention relates to the technical field of fire doors, in particular to a fire door with an intelligent detection function. Background Art

[0002] A fire door is a type of fire door used in fire escape routes that is fire-resistant and fire-resistant for a certain period of time. The fire protection principle is to fill the metal door shell with non-combustible materials such as asbestos, and install a door closer between the door frame and the door body. Under the action of the door closer, the door body naturally closes in the door frame and is fixed by a mechanical lock between the door body and the door frame, achieving normally closed fire protection.

[0003] However, when existing normally closed fire doors are in use, their door closers are usually hydraulic door closers, which are equipped with springs and hydraulic oil inside. When the door is opened, the spring is compressed and the hydraulic oil is refluxed. When the fire door is released, the door body slowly closes under the action of the spring and hydraulic damping. The mechanical lock of the fire door is usually opened by rotating the handle. During daily passage, it is difficult for some children and the elderly to open the door. In the event of a fire, it takes a lot of force to open the fire door for people who are injured in the fire, which makes it more difficult for special personnel to escape from the fire passage. For this reason, a fire door with an intelligent detection function is specially provided to solve the above problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a fire door with intelligent detection function, which solves the problem that the existing normally closed fire door requires a lot of force to open for children, the elderly or people with injuries, whether during daily passage or in the event of a fire, which makes it more difficult for special personnel to escape from the fire passage.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A fire door with an intelligent detection function, comprising a door frame and a fire door body, one side of the fire door body being connected to the door frame by a hinge, and a door lock being installed on the other side of the fire door body, a hydraulic door closer being installed between the top of the fire door body and the door frame, an intelligent detection unit being installed on the top of the door frame, and an electric boosting unit being installed inside the fire door body, the electric boosting unit being control-connected to the intelligent detection unit so that the intelligent detection unit monitors the door opening action, thereby controlling the electric boosting unit to drive the door lock and the hydraulic door closer to open in sequence, thereby assisted opening of the fire door body.

[0006] Preferably, the door lock includes a lock box fixedly installed inside the fire door body, a lock tongue movably provided on one side of the lock box, a lock slot adapted for the lock tongue is provided on the door frame, a traction member is slidingly provided inside the lock box, a pull pin is fixedly welded on the back side of the lock tongue, one end of the traction member is transmission-connected to the pull pin, and the other end of the traction member is transmission-connected to the electric booster unit, door handles are rotatably provided on both sides of the fire door body, a cam is rotatably provided inside the lock box, the cam is transmission-connected to the traction member, and the inner end of the door handle is movably inserted in the cam.

[0007] Preferably, the electric boosting unit includes an electric hydraulic cylinder fixedly installed inside the fire door body, the output end of the electric hydraulic cylinder is fixedly connected to a sliding drag, a transmission shaft is rotatably provided inside the fire door body, the top end of the transmission shaft is transmission-connected to the hydraulic door closer, a first gear is fixedly provided at the bottom end of the transmission shaft, a movable pin is slidingly provided in the fire door body, a first tooth groove is provided on one side of the inner wall of the movable pin, the first tooth groove is engaged with the first gear, one end of the sliding drag is transmission-connected to the movable pin, and the other end of the sliding drag is transmission-connected to the traction member.

[0008] Preferably, the hydraulic door closer includes a sealing box fixedly mounted on the fire door body, a movable shaft is slidingly provided inside the sealing box, a return spring is provided at one end of the movable shaft, a drive shaft is rotatably provided in the sealing box, a second gear is fixedly sleeved on the middle part of the drive shaft, a second tooth groove is provided inside the movable shaft, and the second gear is engaged with the second tooth groove, a rotating arm is fixedly provided on the top end of the drive shaft, a transmission mechanism is installed between the bottom end of the drive shaft and the transmission shaft, the other end of the rotating arm is movably hinged to a connecting arm, and the connecting arm is movably hinged to the door frame.

[0009] Preferably, a fixed cylinder is fixedly provided inside the lock box, an anti-slip block plate is fixedly welded between the lock tongue and the pull pin, the anti-slip block plate is slidably provided in the fixed cylinder, a first connecting groove is provided on the side of the pull pin, a connecting block is integrally formed at the end of the traction member, the connecting block is slidably provided in the first connecting groove, a lightweight spring is movably sleeved on the outer surface of the pull pin, and the two ends of the lightweight spring are respectively against the anti-slip block plate and the inner wall of the fixed cylinder, the upper and lower sides of the middle section of the traction member are respectively protruding outward to form a transmission block, and convex strips are integrally formed on both sides of the cam, and the convex strips follow the rotation of the cam to squeeze the transmission block, so that the traction member moves toward the end away from the lock tongue, thereby causing the connecting block to pull the pull pin to move.

[0010] Preferably, a second connecting groove is provided inside the sliding drag, and a connecting frame is slidably arranged in the second connecting groove, one side of the connecting frame is fixedly connected to the traction member, and a positioning shaft is movably inserted inside the other side of the connecting frame, and the end of the positioning shaft away from the movable pin is fixedly welded to the inner wall of the second connecting groove, and a strong spring is movably sleeved on the outer surface of the positioning shaft, and the two ends of the strong spring are respectively against the inner side of the connecting frame and the inner wall of the second connecting groove.

[0011] Preferably, a limiting groove is provided at the end of the movable pin, and the front end of the sliding drag is slidably set in the limiting groove. Positioning sliders are fixedly installed on both sides of the movable pin, and a slide rail is fixedly installed in the fire door body. The positioning slider is slidably connected to the slide rail. A positioning tube is fixedly provided in the fire door body, and the transmission shaft is rotatably connected to the positioning tube. A movable notch is provided on the top of the movable pin, and the movable pin is slidably set on the outer wall of the bottom end of the transmission shaft through the movable notch, so that the first tooth groove drives the transmission shaft to rotate through the first gear when sliding with the movable pin.

[0012] Preferably, the transmission mechanism includes a transmission seat fixedly arranged on the outer wall of the fire door body, one end of the transmission seat is embedded in the interior of the fire door body, a transmission sleeve is rotatably arranged in the outer end of the transmission seat, the top end of the transmission shaft is rotatably arranged in the inner end of the transmission seat, and a synchronous wheel is fixedly sleeved on the transmission shaft and the transmission sleeve, a synchronous chain is installed between the two groups of the synchronous wheels, a hexagonal groove is provided at the top of the transmission sleeve, the bottom end of the drive shaft is fixedly connected to an inner hexagonal sleeve, a memory spring is provided at the inner top of the inner hexagonal sleeve, an outer hexagonal shaft is slidably provided at the inner bottom of the inner hexagonal sleeve, and the bottom end of the outer hexagonal shaft is movably inserted in the hexagonal groove.

[0013] Preferably, a hydraulic overflow groove and a hydraulic return groove are respectively provided at both ends of the sealing box, hydraulic oil is provided in the sealing box, an adjusting plug is threadedly connected to one end of the sealing box, a through groove is provided in the movable shaft, and the second gear is arranged in the through groove, the hydraulic overflow groove and the hydraulic return groove are connected through the through groove, the outer end of the connecting arm is movably connected with a mounting arm, a hydraulic spring cylinder is provided between the mounting arm and the connecting arm, the end of the mounting arm is movably hinged with a mounting seat, and the mounting seat is fixedly installed on the door frame.

[0014] Preferably, a stop frame for limiting the opening and closing direction of the fire door body is integrally formed on one side of the door frame, and a thermal expansion sealing rubber is fixedly adhered to the inner side of the stop frame; The intelligent detection unit includes a high-precision recognition camera for monitoring the approach of people and a fire alarm for monitoring the occurrence of fire.

[0015] The present invention discloses a fire door with an intelligent detection function, which has the following beneficial effects: 1. This fire door with intelligent detection function, when a person opens the fire door body, when the high-precision recognition camera detects that someone is approaching the fire door body, it gives a boost signal, then starts the electric hydraulic cylinder, and the output end of the electric hydraulic cylinder slowly extends, first assisting the user to move the lock tongue, thereby reducing the resistance to turning the door handle, and then the electric hydraulic cylinder continues to output, driving the drive shaft to rotate, at this time, it is used to reduce the damping effect of the return spring and hydraulic oil when a person pushes the fire door body to open, thereby achieving the function of assisting in opening the fire door body. Whether it is daily passing through the fire door body or in the event of a fire, it can play a role in assisting in opening the door.

[0016] 2. The fire door with intelligent detection function has a detailed structural setting of the electric booster unit. In actual use, even if the electric hydraulic cylinder fails due to high-temperature combustion, turning the door handle can still drive the lock tongue to move out of the lock groove; then, by pushing or pulling the fire door body, the fire door body is opened toward the fire passage side. At this time, the driving shaft is driven to rotate by the rotating arm, so that the driving shaft drives the transmission shaft to rotate, so that the movable pin moves toward the end away from the sliding drag. In this way, when the electric hydraulic cylinder cannot be started due to high-temperature failure or power failure, the fire door body and the lock tongue can be mechanically opened by manpower, so that rescue can be carried out in the fire area or people in the fire area can escape, and the opening of the fire door body will not be negatively affected by the additional electric booster unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the fire door main body in a closed state according to the present invention; Figure 2 This is a structural diagram of the fire door main body in the open state of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the fire door of the present invention; Figure 4 Schematic diagram of the outer surface structure of the door lock, electric booster unit and hydraulic door closer of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the internal structure of the door lock of the present invention; Figure 6 This is an exploded view of the internal structure of the electric boost unit of the present invention; Figure 7 This is a schematic diagram of the outer surface structure of the sliding bracket of the present invention; Figure 8 This is a cross-sectional view of the internal structure of the transmission mechanism of the present invention; Figure 9 This is a schematic diagram of the outer surface structure of the hydraulic door closer of the present invention; Figure 10 This is a cross-sectional view of the internal structure of the sealed box of the present invention.

[0019] In the figure: 1. Fire door body; 2. Intelligent detection unit; 21. High-precision recognition camera; 22. Fire alarm; 3. Door frame; 32. Stop frame; 33. Thermal expansion sealing rubber; 34. Lock slot; 4. Door lock; 41. Lock box; 42. Door handle; 43. Lock tongue; 44. Cam; 45. Fixed cylinder; 46. Pull pin; 47. Pulling piece; 48. Connecting block; 49. Light spring; 410. Transmission block; 411. Raised strip; 412. Anti-slip block; 413. First connecting slot; 5. Hydraulic door closer; 51. Sealing box; 52. Rotating arm; 53. Connecting arm; 54. Mounting arm; 55. Hydraulic spring cylinder; 56. Mounting seat; 57. Drive shaft; 58. Movable shaft; 59. Return spring; 510. Regulating plug; 511, second tooth groove; 512, second gear; 513, hydraulic overflow groove; 514, hydraulic return groove; 515, inner hexagonal sleeve; 516, outer hexagonal shaft; 517, memory spring; 6, electric booster unit; 61, electric hydraulic cylinder; 62, sliding bracket; 63, movable pin; 64, transmission shaft; 65, transmission mechanism; 651, transmission seat; 652, transmission sleeve; 653, synchronous wheel; 654, synchronous chain; 655, hexagonal groove; 66, connecting frame; 67, positioning tube; 68, positioning slider; 69, slide rail; 610, first gear; 611, limit groove; 612, positioning shaft; 613, strong spring; 614, second connecting groove; 615, movable notch; 616, first tooth groove. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] The embodiment of the present application solves the problem that the existing normally closed fire doors require greater force to open for children, the elderly or people with injuries, whether during daily passage or in the event of a fire, by providing a fire door with an intelligent detection function, which makes it more difficult for special personnel to escape from the fire passage.

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] An embodiment of the present invention discloses a fire door with an intelligent detection function.

[0024] According to the attached Figure 1-10 As shown, it includes a door frame 3 and a fire door body 1. One side of the fire door body 1 is connected to the door frame 3 by a hinge. A door lock 4 is installed on the other side of the fire door body 1. A hydraulic door closer 5 is installed between the top of the fire door body 1 and the door frame 3. An intelligent detection unit 2 is installed on the top of the door frame 3. An electric booster unit 6 is installed inside the fire door body 1. The electric booster unit 6 is control-connected to the intelligent detection unit 2 so that the intelligent detection unit 2 monitors the door opening action, thereby controlling the electric booster unit 6 to drive the door lock 4 and the hydraulic door closer 5 to open in sequence, thereby assisted opening of the fire door body 1.

[0025] The door lock 4 includes a lock box 41 fixedly installed inside the fire door body 1, a lock tongue 43 is movably provided on one side of the lock box 41, a lock slot 34 adapted for the lock tongue 43 is provided on the door frame 3, a traction member 47 is slidingly provided inside the lock box 41, a pull pin 46 is fixedly welded on the back of the lock tongue 43, one end of the traction member 47 is transmission-connected to the pull pin 46, and the other end of the traction member 47 is transmission-connected to the electric booster unit 6, door handles 42 are rotatably provided on both sides of the fire door body 1, a cam 44 is rotatably provided inside the lock box 41, the cam 44 is transmission-connected to the traction member 47, and the inner end of the door handle 42 is movably inserted in the cam 44.

[0026] The electric boosting unit 6 includes an electric hydraulic cylinder 61 fixedly installed inside the fire door body 1, and the output end of the electric hydraulic cylinder 61 is fixedly connected to the sliding drag 62. A transmission shaft 64 is rotatably provided inside the fire door body 1. The top of the transmission shaft 64 is transmission-connected to the hydraulic door closer 5, and the bottom end of the transmission shaft 64 is fixedly provided with a first gear 610. A movable pin 63 is slidingly provided in the fire door body 1, and a first tooth groove 616 is provided on one side of the inner wall of the movable pin 63. The first tooth groove 616 is engaged with the first gear 610. One end of the sliding drag 62 is transmission-connected to the movable pin 63, and the other end of the sliding drag 62 is transmission-connected to the traction member 47.

[0027] The hydraulic door closer 5 includes a sealing box 51 fixedly mounted on the fire door body 1, a movable shaft 58 is slidingly provided inside the sealing box 51, a return spring 59 is provided at one end of the movable shaft 58, a drive shaft 57 is rotatably provided in the sealing box 51, a second gear 512 is fixedly sleeved on the middle part of the drive shaft 57, a second tooth groove 511 is provided inside the movable shaft 58, and the second gear 512 is engaged with the second tooth groove 511, a rotating arm 52 is fixedly provided at the top of the drive shaft 57, a transmission mechanism 65 is installed between the bottom end of the drive shaft 57 and the transmission shaft 64, the other end of the rotating arm 52 is movably hinged to a connecting arm 53, and the connecting arm 53 is movably hinged to the door frame 3.

[0028] A fixed cylinder 45 is fixedly provided inside the lock box 41, and an anti-slip block piece 412 is fixedly welded between the lock tongue 43 and the pull pin 46. The anti-slip block piece 412 is slidably set in the fixed cylinder 45. A first connecting groove 413 is provided on the side of the pull pin 46. The end of the traction member 47 is integrally formed with a connecting block 48, which is slidably set in the first connecting groove 413. A lightweight spring 49 is movably sleeved on the outer surface of the pull pin 46, and the two ends of the lightweight spring 49 are respectively against the anti-slip block piece 412 and the inner wall of the fixed cylinder 45. The upper and lower sides of the middle section of the traction member 47 protrude outward to form a transmission block 410. Both sides of the cam 44 are integrally formed with a ridge 411. The ridge 411 rotates with the cam 44 to squeeze the transmission block 410, so that the traction member 47 moves toward the end away from the lock tongue 43, thereby causing the connecting block 48 to pull the pull pin 46 to move.

[0029] A second connecting groove 614 is provided inside the sliding bracket 62, and a connecting frame 66 is slidably provided in the second connecting groove 614. One side of the connecting frame 66 is fixedly connected to the traction member 47, and a positioning shaft 612 is movably inserted inside the other side of the connecting frame 66. The end of the positioning shaft 612 away from the movable pin 63 is fixedly welded to the inner wall of the second connecting groove 614, and a strong spring 613 is movably sleeved on the outer surface of the positioning shaft 612, and the two ends of the strong spring 613 are respectively against the inner side of the connecting frame 66 and the inner wall of the second connecting groove 614.

[0030] A limiting groove 611 is provided at the end of the movable pin 63, and the front end of the sliding bracket 62 is slidably set in the limiting groove 611. Positioning sliders 68 are fixedly installed on both sides of the movable pin 63, and a slide rail 69 is fixedly installed in the fire door body 1. The positioning slider 68 is slidably connected to the slide rail 69. A positioning tube 67 is fixedly provided in the fire door body 1, and the transmission shaft 64 is rotatably connected to the positioning tube 67. A movable notch 615 is provided at the top of the movable pin 63, and the movable pin 63 is slidably set on the outer wall of the bottom end of the transmission shaft 64 through the movable notch 615, so that the first tooth groove 616 drives the transmission shaft 64 to rotate through the first gear 610 when sliding with the movable pin 63.

[0031] The transmission mechanism 65 includes a transmission seat 651 fixedly arranged on the outer wall of the fire door body 1, one end of the transmission seat 651 is embedded in the interior of the fire door body 1, and a transmission sleeve 652 is rotatably arranged in the outer end of the transmission seat 651. The top of the transmission shaft 64 is rotatably arranged in the inner end of the transmission seat 651, and a synchronous wheel 653 is fixedly sleeved on the transmission shaft 64 and the transmission sleeve 652. A synchronous chain 654 is installed between the two sets of synchronous wheels 653. A hexagonal groove 655 is provided at the top of the transmission sleeve 652, and the bottom end of the drive shaft 57 is fixedly connected to the inner hexagonal sleeve 515. A memory spring 517 is provided at the inner top of the inner hexagonal sleeve 515, and an outer hexagonal shaft 516 is slidably provided at the inner bottom of the inner hexagonal sleeve 515. The bottom end of the outer hexagonal shaft 516 is movably inserted into the hexagonal groove 655.

[0032] A hydraulic overflow groove 513 and a hydraulic return groove 514 are respectively provided at both ends of the sealing box 51, and hydraulic oil is provided in the sealing box 51. An adjusting plug 510 is threadedly connected to one end of the sealing box 51, a through groove is provided in the movable shaft 58, and the second gear 512 is arranged in the through groove, the hydraulic overflow groove 513 and the hydraulic return groove 514 are connected through the through groove, and the outer end of the connecting arm 53 is movably connected to the mounting arm 54, and a hydraulic spring cylinder 55 is provided between the mounting arm 54 and the connecting arm 53, and the end of the mounting arm 54 is movably hinged to the mounting seat 56, and the mounting seat 56 is fixedly installed to the door frame 3.

[0033] A stop frame 32 is integrally formed on one side of the door frame 3 to limit the opening and closing direction of the fire door body 1. A thermal expansion sealing rubber 33 is fixedly bonded to the inner side of the stop frame 32. The intelligent detection unit 2 includes a high-precision recognition camera 21 for detecting the approach of a person and a fire alarm 22 for detecting the occurrence of a fire.

[0034] Working Principle: When the device is in use, the fire door body 1 is naturally closed in the door frame 3 under the action of the hydraulic door closer 5. At this time, the lock tongue 43 is inserted into the lock slot 34. At the same time, the high-precision recognition camera 21 in the intelligent detection unit 2 performs real-time detection to monitor people approaching the fire door body 1. When the high-precision recognition camera 21 detects that someone is approaching the fire door body 1, it gives a boost signal. At this time, when the person turns the door handle 42, the electric hydraulic cylinder 61 is started, and the electric hydraulic cylinder 61 pushes the sliding carriage 62 to move. At this time, the sliding carriage 62 pulls the connecting frame 66 to move through the strong spring 613, and the connecting frame 66 pulls the traction member 47 to move. The traction member 47 pulls the pull pin 46 to move through the connecting block 48, thereby causing the lock tongue 43 to retract into the fixed cylinder 45, causing the lightweight spring 49 to be compressed. At this time, the lock tongue 43 moves out of the lock groove 34, completing the unlocking. At the same time, the front end of the sliding carriage 62 slides inside the limiting groove 611 until it is close to the inner end of the limiting groove 611; Then someone pushes the fire door body 1 to open it. At this time, the electric hydraulic cylinder 61 continues to output and drives the sliding carriage 62 to move. At this time, since the light spring 49 is fully compressed, the traction member 47 cannot move. At this time, the sliding carriage 62 moves, causing the strong spring 613 to be compressed. At this time, the sliding carriage 62 pushes the movable pin 63 to move. The first tooth groove 616 inside the movable pin 63 engages with the first gear 610, driving the transmission shaft 64 to rotate. The top end of the transmission shaft 64 drives the transmission sleeve 652 to rotate synchronously through the synchronous chain 654. The transmission sleeve 652 The outer hexagonal shaft 516 drives the drive shaft 57 to rotate, so that when the fire door body 1 is opened, it can assist in pushing the drive shaft 57 to rotate, thereby causing the second gear 512 to rotate inside the second tooth groove 511, causing the movable shaft 58 to move. At this time, the return spring 59 is compressed, and at the same time, the hydraulic oil on the side of the return spring 59 is squeezed through the hydraulic overflow groove 513 into the movable shaft 58, and then flows through the hydraulic return groove 514 to the other end of the sealing box 51, thereby reducing the resistance when the fire door body 1 is opened, and realizing electric assisted door opening; After the person leaves the fire door body 1, the high-precision recognition camera 21 gives a reset signal. At this time, the electric hydraulic cylinder 61 drives the sliding carriage 62 to reset. At this time, under the action of the lightweight spring 49, the lock tongue 43 naturally extends. At the same time, under the action of the reset spring 59, the drive shaft 57 rotates, causing the fire door body 1 to automatically close. At this time, the fire door body 1 automatically closes on the door frame 3 after the person escapes to prevent fire and smoke. In summary of the above process, when a person attempts to open the fire door body 1, when the high-precision recognition camera 21 detects that someone is approaching the fire door body 1, a boost signal is given, and the electric hydraulic cylinder 61 is activated at this time. The output end of the electric hydraulic cylinder 61 slowly extends, first assisting the user to move the lock tongue 43, thereby reducing the resistance to turning the door handle 42. Then the electric hydraulic cylinder 61 continues to output, driving the drive shaft 57 to rotate. At this time, it is used to reduce the damping effect of the return spring 59 and the hydraulic oil when the person pushes the fire door body 1 to open, thereby achieving the function of assisting the opening of the fire door body 1. Whether it is daily passing through the fire door body 1 or in the event of a fire, it can play the role of assisting the door opening; The fire alarm 22 is integrated with a smoke sensor, an infrared temperature sensor and an audible and visual alarm. When a fire occurs, the smoke sensor and the infrared temperature sensor monitor the fire smoke and temperature, thereby controlling the audible and visual alarm to emit a buzzing sound and flashing lights, thereby prompting people to escape from that place.

[0035] At the same time, the device arranges the detailed structure of the electric booster unit 6 so that the front end of the connecting frame 66 slides in the second connecting groove 614 in the sliding carriage 62, and the front end of the sliding carriage 62 slides inside the limiting groove 611 at the end of the movable pin 63. Therefore, in actual use, even if the electric hydraulic cylinder 61 fails due to high-temperature combustion, rotating the door handle 42 can still drive the cam 44 to rotate, so that the convex strip 411 on the cam 44 drives the transmission block 410 to move away from the lock tongue 43, thereby pulling the lock tongue 43 out of the lock groove 34 through the traction member 47. Moreover, by arranging the convex strips 411 and the transmission block 410 on the upper and lower sides, the door handle 42 can be rotated. The door can be opened by rotating it upward or downward; then, by pushing or pulling the fire door body 1, the fire door body 1 is opened toward the side of the fire passage. At this time, the driving shaft 57 is driven to rotate by the rotating arm 52, so that the driving shaft 57 drives the transmission shaft 64 to rotate. The transmission shaft 64 engages with the first tooth groove 616 through the first gear 610, so that the movable pin 63 moves toward the end away from the sliding drag 62. In this way, when the electric hydraulic cylinder 61 cannot be started due to a high temperature failure or power outage, the fire door body 1 and the lock tongue 43 can be mechanically opened by manpower, so that the fire area can be rescued or the people in the fire area can escape, thereby avoiding the situation where the electrical components fail in high temperature and cannot be opened.

[0036] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire door with intelligent detection function, comprising a door frame (3) and a fire door body (1), characterized in that: One side of the fire door body (1) is connected to the door frame (3) by a hinge, and a door lock (4) is installed on the other side of the fire door body (1). A hydraulic door closer (5) is installed between the top of the fire door body (1) and the door frame (3). An intelligent detection unit (2) is installed on the top of the door frame (3). An electric boosting unit (6) is installed inside the fire door body (1). The electric boosting unit (6) is control-connected with the intelligent detection unit (2) so that the intelligent detection unit (2) monitors the door opening action, thereby controlling the electric boosting unit (6) to drive the door lock (4) and the hydraulic door closer (5) to open in sequence, thereby realizing auxiliary opening of the fire door body (1).

2. The fire door with intelligent detection function according to claim 1, characterized in that: The door lock (4) includes a lock box (41) fixedly installed inside the fire door body (1), a lock tongue (43) is movably provided on one side of the lock box (41), a lock slot (34) adapted for the lock tongue (43) is provided on the door frame (3), a traction member (47) is slidably provided inside the lock box (41), a pull pin (46) is fixedly welded to the back of the lock tongue (43), one end of the traction member (47) is transmission-connected to the pull pin (46), and the other end of the traction member (47) is transmission-connected to the electric booster unit (6), door handles (42) are rotatably provided on both sides of the fire door body (1), a cam (44) is rotatably provided inside the lock box (41), the cam (44) is transmission-connected to the traction member (47), and the inner end of the door handle (42) is movably inserted into the cam (44).

3. The fire door with intelligent detection function according to claim 2, characterized in that: The electric boosting unit (6) includes an electric hydraulic cylinder (61) fixedly installed inside the fire door body (1), the output end of the electric hydraulic cylinder (61) is fixedly connected to a sliding drag (62), the fire door body (1) is internally rotatably provided with a transmission shaft (64), the top end of the transmission shaft (64) is transmission-connected to the hydraulic door closer (5), the bottom end of the transmission shaft (64) is fixedly provided with a first gear (610), a movable pin (63) is slidingly provided in the fire door body (1), a first tooth groove (616) is provided on one side of the inner wall of the movable pin (63), the first tooth groove (616) is meshed with the first gear (610), one end of the sliding drag (62) is transmission-connected to the movable pin (63), and the other end of the sliding drag (62) is transmission-connected to the traction member (47).

4. The fire door with intelligent detection function according to claim 3, characterized in that: The hydraulic door closer (5) includes a sealing box (51) fixedly mounted on the fire door body (1), a movable shaft (58) is slidably provided inside the sealing box (51), a return spring (59) is provided at one end of the movable shaft (58), a driving shaft (57) is rotatably provided in the sealing box (51), a second gear (512) is fixedly sleeved on the middle part of the driving shaft (57), a second tooth groove (511) is provided inside the movable shaft (58), and the second gear (512) is meshed with the second tooth groove (511), a rotating arm (52) is fixedly provided at the top end of the driving shaft (57), a transmission mechanism (65) is installed between the bottom end of the driving shaft (57) and the transmission shaft (64), the other end of the rotating arm (52) is movably hinged to a connecting arm (53), and the connecting arm (53) is movably hinged to the door frame (3).

5. The fire door with intelligent detection function according to claim 2, characterized in that: A fixed cylinder (45) is fixedly provided inside the lock box (41), an anti-slip block (412) is fixedly welded between the lock tongue (43) and the pull pin (46), and the anti-slip block (412) is slidably provided in the fixed cylinder (45), a first connecting groove (413) is provided on the side of the pull pin (46), a connecting block (48) is integrally formed at the end of the traction member (47), and the connecting block (48) is slidably provided in the first connecting groove (413), and a light spring (412) is movably sleeved on the outer surface of the pull pin (46). 49), and the two ends of the lightweight spring (49) respectively abut against the anti-slip block (412) and the inner wall of the fixed cylinder (45), the upper and lower sides of the middle section of the traction member (47) respectively protrude outward to form a transmission block (410), and both sides of the cam (44) are integrally formed with a convex strip (411), and the convex strip (411) rotates with the cam (44) to squeeze the transmission block (410), so that the traction member (47) moves toward the end away from the lock tongue (43), thereby causing the connecting block (48) to pull the pull pin (46) to move.

6. The fire door with intelligent detection function according to claim 3, characterized in that: A second connecting groove (614) is provided inside the sliding bracket (62), and a connecting frame (66) is slidably provided in the second connecting groove (614). One side of the connecting frame (66) is fixedly connected to the traction member (47), and a positioning shaft (612) is movably inserted into the other side of the connecting frame (66). One end of the positioning shaft (612) away from the movable pin (63) is fixedly welded to the inner wall of the second connecting groove (614), and a strong spring (613) is movably sleeved on the outer surface of the positioning shaft (612), and the two ends of the strong spring (613) are respectively against the inner side of the connecting frame (66) and the inner wall of the second connecting groove (614).

7. The fire door with intelligent detection function according to claim 6, characterized in that: A limiting groove (611) is provided at the end of the movable pin (63), and the front end of the sliding bracket (62) is slidably arranged in the limiting groove (611). Positioning sliders (68) are fixedly installed on both sides of the movable pin (63). A slide rail (69) is fixedly installed in the fire door body (1), and the positioning slider (68) is slidably connected to the slide rail (69). A positioning tube (67) is fixedly provided in the fire door body (1), and the transmission shaft (64) is rotatably connected to the positioning tube (67). A movable notch (615) is provided at the top of the movable pin (63), and the movable pin (63) is slidably arranged on the outer wall of the bottom end of the transmission shaft (64) through the movable notch (615), so that when the first tooth groove (616) slides following the movable pin (63), the transmission shaft (64) is driven to rotate through the first gear (610).

8. The fire door with intelligent detection function according to claim 4, characterized in that: The transmission mechanism (65) includes a transmission seat (651) fixedly arranged on the outer wall of the fire door body (1), one end of the transmission seat (651) is embedded in the interior of the fire door body (1), a transmission sleeve (652) is rotatably arranged in the outer end of the transmission seat (651), the top end of the transmission shaft (64) is rotatably arranged in the inner end of the transmission seat (651), and a synchronous wheel (653) is fixedly sleeved on the transmission shaft (64) and the transmission sleeve (652). The two sets of the transmission mechanism (65) are connected to each other. A synchronous chain (654) is installed between the synchronous wheels (653), a hexagonal groove (655) is provided at the top of the transmission sleeve (652), the bottom end of the drive shaft (57) is fixedly connected to an inner hexagonal sleeve (515), a memory spring (517) is provided at the inner top of the inner hexagonal sleeve (515), an outer hexagonal shaft (516) is slidably provided at the inner bottom of the inner hexagonal sleeve (515), and the bottom end of the outer hexagonal shaft (516) is movably inserted into the hexagonal groove (655).

9. The fire door with intelligent detection function according to claim 4, characterized in that: A hydraulic overflow groove (513) and a hydraulic return groove (514) are respectively provided inside the two ends of the sealing box (51), and hydraulic oil is provided in the sealing box (51). One end of the sealing box (51) is threadedly connected to a regulating plug (510), a through groove is provided in the movable shaft (58), and a second gear (512) is provided in the through groove, and the hydraulic overflow groove (513) and the hydraulic return groove (514) are connected through the through groove, and the outer end of the connecting arm (53) is movably connected to the mounting arm (54), and a hydraulic spring cylinder (55) is provided between the mounting arm (54) and the connecting arm (53), and the end of the mounting arm (54) is movably hinged to a mounting seat (56), and the mounting seat (56) is fixedly installed with the door frame (3).

10. The fire door with intelligent detection function according to claim 1, characterized in that: A retaining frame (32) for limiting the opening and closing direction of the fire door body (1) is integrally formed on one side of the door frame (3), and a heat expansion sealing rubber (33) is fixedly bonded to the inner side of the retaining frame (32); The intelligent detection unit (2) comprises a high-precision recognition camera (21) for monitoring the approach of a person and a fire alarm (22) for monitoring the occurrence of a fire.

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