Smoke-proof and fire-proof door with electric protection structure and protection system of smoke-proof and fire-proof door

Abstract

The invention discloses a smoke-proof and fire-proof door with an electric protection structure and a protection system of the smoke-proof and fire-proof door, and relates to the field of fire doors. The smoke-proof fireproof door with the electric protection structure comprises a door frame and a fireproof door body installed in the door frame, an intelligent protection unit is installed on the inner top of the door frame, and a protection system comprises a monitoring module, a control module and an execution module. According to the smoke-proof and fire-proof door with the electric protection structure and the protection system of the smoke-proof and fire-proof door, the intelligent control terminal is arranged to control the monitoring module and the execution module, so that fire occurrence is intelligently monitored, and the opening direction of the fire-proof door plate is intelligently controlled according to the fire occurrence position; according to the intelligent fire-proof door, sequential intelligent control is carried out when the fire-proof door plates are closed, in the personnel escape process, the electric telescopic rods are intelligently controlled to be started, door opening is assisted, and compared with a traditional mechanical normally-open smoke-proof and fire-proof door, personnel evacuation and escape are better facilitated when fire accidents happen in public places.

Description

Technical Field

[0001] The present invention relates to the technical field of fire doors, and specifically to a smoke-proof and fire-proof door with an electric protection structure and its protection system. Background Art

[0002] In modern building codes, smoke-proof and fire-proof doors must be installed in fire corridors of public places as required. The door body is made of flame-retardant and fire-resistant materials, which can isolate the fire within a specified time. At the same time, a thermal expansion sealing strip is installed between the door body and the door frame, which expands by absorbing heat during a fire, thus playing a role in isolating smoke. At the same time, smoke-proof and fire-proof doors include normally open type and normally closed type.

[0003] However, for some special public places, such as fire doors in hospital walkways or shopping malls, they are usually normally open. And due to the special nature of the places, there is a risk of fire on both sides of the fire door. Now the normally open fire doors are usually single-direction opening, which leads to the opening direction of the fire door being opposite to the escape direction when a fire occurs on the opposite side, not being conducive to the rapid escape of people. And the normally open fire doors have a large opening resistance under the action of the door closer. For some elderly, weak or children, it is difficult to open, which is not conducive to rapid escape. Therefore, a smoke-proof and fire-proof door with an electric protection structure and its protection system are provided specifically. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a smoke-proof and fire-proof door with an electric protection structure and its protection system, which solves the problem that in some places where there is a fire risk on both sides, the existing normally open fire doors are usually single-direction opening, which leads to the opening direction of the fire door being opposite to the escape direction when a fire occurs on the opposite side, not being conducive to the rapid escape of people. And the normally open fire doors have a large opening resistance under the action of the door closer. For some elderly, weak or children, it is difficult to open, which is not conducive to rapid escape.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A smoke-proof and fire-proof door with an electric protection structure includes a door frame and a fire door main body installed in the door frame. The fire door main body can be selectively opened inward or outward in the door frame, and an intelligent protection unit is installed at the inner top of the door frame; The intelligent protection unit includes a monitoring camera, a fire monitor, an intelligent door closer and a connecting strip. Monitoring cameras and fire monitors are installed on both sides of the door frame. The fire monitor is used to monitor the occurrence of a fire, and the monitoring camera is used to monitor the approach of people when a fire occurs; The intelligent door closer includes a slide rail installed at the top inside the door frame and a sliding block slidably arranged in the slide rail. The connecting bar is installed between the sliding block and the fire door body, so that when the sliding block slides, the fire door body is driven to open and close through the connecting bar; An electric push rod is installed inside the sliding block; when the fire door body is closed, the electric push rod is used to block one side of the sliding block, so that the two groups of fire door bodies are closed successively. When the fire door body is opened, the electric push rod is used to assist in pushing the sliding block to move outward; A variable anti-reverse member is arranged inside the sliding block, and the variable anti-reverse member is used to limit the opening direction of the fire door body.

[0006] Preferably, the fire door body includes a refractory door panel and a two-way connecting member arranged on one side of the refractory door panel. The door frame and the refractory door panel are respectively installed on both sides of the two-way connecting member through hinges, and the opening and closing directions of the two hinges are opposite. A door leaf is integrally formed on the side of the refractory door panel away from the two-way connecting member, and a second thermal expansion sealing strip is fixedly assembled on the outer side of the refractory door panel.

[0007] Preferably, a connecting notch is opened at the top of the refractory door panel. The outer end of the connecting bar is rotatably connected with a connecting shaft, and the connecting shaft is slidably arranged in the connecting notch. Protective positions for the connecting bar to be flipped and stored are integrally formed on both sides of the top of the door frame, and a wire connected to the intelligent protection unit is fixedly penetrated through one side of the door frame. First thermal expansion sealing strips are fixedly arranged on both sides of the inner top of the door frame.

[0008] Preferably, an activity chamber is opened inside the protective position, and a self-resetting sealing member is arranged inside the activity chamber. One end of the slide rail extends into the self-resetting sealing member. When the sliding block moves outward, the self-resetting sealing member is pushed upward to form a cavity for the connecting bar to move at the bottom end of the activity chamber.

[0009] Preferably, the self-resetting sealing member includes a lifting seat slidably arranged vertically in the activity chamber. A thermal expansion sealing plate is fixedly arranged at the bottom of the lifting seat. A positioning shaft is fixedly arranged at the top of the lifting seat. A memory spring is movably sleeved on the outer surface of the positioning shaft. The top end of the positioning shaft is movably inserted into the inner top of the activity chamber. An activity groove is opened inside the lifting seat, and the slide rail is movably arranged in the activity groove.

[0010] Preferably, a hydraulic spring cylinder is fixedly arranged inside the outer end of the slide rail, and the output end of the hydraulic spring cylinder is fixedly connected with the sliding block. A chute is opened at the top of the slide rail. A wedge block is fixedly arranged at the top of the sliding block. The bottom end of the wedge block is slidably arranged in the chute, and the top end of the wedge block is movably inserted into the activity groove.

[0011] Preferably, a locking mechanism is provided inside the sliding block. Two fixing holes adapted to the locking mechanism are provided in the middle of the sliding groove. An infrared sensor is fixedly provided inside the sliding block, and an infrared receiver adapted to the infrared sensor is fixedly provided at the inner top of the slide rail. The position of the sliding block is monitored by the infrared receiver to determine that a group of the fireproof door panels are closed in place.

[0012] Preferably, the locking mechanism includes a first electric telescopic rod fixedly provided inside the sliding block. A positioning pin is slidably provided on the top of the sliding block. A transmission bar is fixedly connected between the output end of the first electric telescopic rod and the positioning pin. A physical switch for controlling the telescopic movement of the first electric telescopic rod is fixedly embedded on one side of the sliding block.

[0013] Preferably, the variable check member includes a rotating shaft rotatably provided in the sliding block. The bottom end of the rotating shaft is fixedly connected to the connecting bar. A check strip is integrally formed in the middle of the rotating shaft. A movable seat is slidably provided on the side wall of the sliding block. Anti-reverse stoppers are fixedly provided at both the upper and lower ends of the movable seat, and the two anti-reverse stoppers are respectively located on both sides of the check strip. A second electric telescopic rod is fixedly provided inside the sliding block, and the output end of the second electric telescopic rod is fixedly connected to the movable seat.

[0014] Preferably, a protection system for a smoke-proof and fire-proof door with an electric protection structure includes a monitoring module, a control module, and an execution module. The monitoring module, the control module, and the execution module. The monitoring module includes the monitoring camera, the fire monitor, and the infrared sensor. The control module is an intelligent control terminal. The execution module includes the locking mechanism, the variable check member, and the electric push rod. The operation logics of the monitoring module, the control module, and the execution module are as follows; S1. The main body of the fireproof door is fixed by the locking mechanism to maintain a normally open state in the forward direction. At the same time, the fire is monitored by the fire monitor. S2. When the fire monitor detects a fire, the locking mechanism is automatically unlocked through the intelligent control terminal, and the two main bodies of the fireproof door are closed successively through the electric push rod. S3. The fire monitor detects the location of the fire and controls the variable check member to limit the opening and closing direction of the main body of the fireproof door. S4. When the monitoring camera detects that an escapee opens the main body of the fireproof door to escape, the electric push rod is activated to assist in opening the door.

[0015] The present invention discloses a smoke-proof and fire-proof door with an electric protection structure and its protection system, and the beneficial effects thereof are as follows: 1. The smoke and fireproof door with an electric protection structure has a two-way connecting piece provided between the door frame and the fire-resistant door panel, so that the fire-resistant door panel has the effect of two-way opening and closing. In addition, when a fire occurs, the fire detectors on both sides can detect the location of the fire, and then unlock the door panel by controlling the locking mechanism, so that the fire-resistant door panel automatically closes. The infrared sensors on both sides act on the two groups of infrared receivers respectively, and a non-return signal is given at this time, so that the variable non-return piece is started, so that the two groups of non-return blocks automatically block one side of the non-return bar, so that the rotating shaft can only rotate in one direction, thereby limiting the opening and closing direction of the fire door body, so that the fire door body can only be opened toward the side away from the fire, which is convenient for escape and indicates the escape direction to the escapee.

[0016] 2. The smoke and fireproof door with an electric protection structure is provided with an electric push rod on the inner side of the sliding block. When closing the main body of the fire door, the opening direction of the main body of the fire door is first determined by the monitoring camera, thereby controlling the extension of the electric push rod on one side to hold the sliding block on that side. After the fire-resistant door panel on the other side is closed under the action of the hydraulic spring cylinder, the infrared sensor and the infrared receiver on the closed side are facing each other and give a closing signal. At this time, the extended electric push rod contracts, thereby closing the other set of fire-resistant door panels, thereby replacing the traditional mechanical sequencer, ensuring that the fire-resistant door panels can be closed in sequence no matter which side they are opened to, ensuring sealing. In addition, after a fire occurs, when the monitoring camera detects that the escaping personnel have opened the main body of the fire door to escape, the electric push rod is started, and the electric push rod assists in pushing the sliding block to slide to both sides, thereby realizing assisted door opening.

[0017] 3. During use, when the smoke and fireproof door with an electric protection structure is opened, the two sets of sliding blocks slide to both sides and are inserted into the movable groove, thereby pushing the lifting seat upward, so that a cavity is formed on the inner top of the movable chamber, so that the connecting strip can twist and move inside the cavity. Finally, when the two sets of sliding blocks slide toward the middle, the wedge block is withdrawn from the movable groove. At this time, under the action of the memory spring, the lifting seat moves downward, tightly attached to the surface of the second thermal expansion sealing strip at the top of the fire-resistant door panel, and the first thermal expansion sealing strip at the top of the door frame also offsets the second thermal expansion sealing strip. Under high temperature, all three undergo thermal expansion, thereby effectively sealing and achieving a smoke-proof effect.

[0018] 4. The protection system of the smoke-proof and fire-proof door with an electric protection structure includes a monitoring module, a control module, and an execution module. By setting up an intelligent control terminal to control the monitoring module and the execution module respectively, it can intelligently monitor the occurrence of a fire, and intelligently control the opening direction of the fire-resistant door panel according to the location of the fire, and conduct intelligent sequential control when the fire-resistant door panel is closed. During the evacuation of personnel, the intelligent control electric telescopic rod is activated to assist in opening the door. Compared with the traditional mechanical normally open smoke-proof and fire-proof door, it is more conducive to the evacuation and escape of personnel in public places during a fire accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the main body of the fire-proof door of the present invention in the closed state; Figure 2 Structural schematic diagram of the top inside the door frame of the present invention; Figure 3 Structural schematic diagram of the main body of the fire-proof door of the present invention in the forward opening state; Figure 4 Structural schematic diagram of the main body of the fire-proof door of the present invention in the reverse opening state; Figure 5 Structural schematic diagram of the top of the main body of the fire-proof door of the present invention; Figure 6 Structural schematic diagram of the intelligent door closer of the present invention; Figure 7 Cross-sectional view of the top inside the door frame of the present invention; Figure 8 Structural schematic diagram of the intelligent door closer and the self-resetting seal of the present invention; Figure 9 Cross-sectional view of the internal structure of the intelligent door closer of the present invention; Figure 10 Structural schematic diagram of the outer surface of the sliding block of the present invention; Figure 11 Cross-sectional view of the internal structure of the sliding block of the present invention; Figure 12 Functional architecture diagram of the protection system of the present invention; Figure 13 Operation logic diagram of the protection system of the present invention.

[0021] In the figure: 1. Door frame; 12. Protection station; 13. Activity chamber; 14. First thermal expansion sealing strip; 2. Fire door main body; 21. Fire-resistant door panel; 22. Bidirectional connecting piece; 23. Second thermal expansion sealing strip; 24. Title page; 25. Connection notch; 3. Intelligent protection unit; 31. Monitoring camera; 32. Fire monitor; 33. Intelligent door closer; 331. Slide rail; 332. Slide block; 333. Slide groove; 334. Wedge block; 335. Hydraulic spring cylinder; 336. Electric push rod; 337. Variable check valve; 3371. Rotating shaft; 3372. Check strip; 3373. Movable seat; 3374. Check stop block; 3375. Second electric telescopic rod; 338. Infrared sensor; 339. Locking mechanism; 3391. First electric telescopic rod; 3392. Positioning bolt; 3393. Transmission strip; 3394. Physical switch; 3310. Fixed hole; 3311. Infrared receiver; 34. Connecting strip; 35. Connecting shaft; 36. Conducting wire; 37. Self-resetting seal; 371. Lifting seat; 372. Thermal expansion sealing plate; 373. Positioning shaft; 374. Memory spring; 375. Activity groove. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] By providing a smoke-proof and fire-proof door with an electric protection structure and its protection system in the embodiments of the present application, the problem is solved that in some places where there are fire risks on both sides, the existing normally open fire-proof doors usually open unidirectionally. This causes the opening direction of the fire-proof door to be opposite to the escape direction when a fire occurs on the opposite side, which is not conducive to the rapid escape of personnel. Moreover, due to the action of the door closer on the normally open fire-proof door, the opening resistance is large. For some elderly, weak or children, it is difficult to open, which is not conducive to rapid escape.

[0024] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0025] Embodiment

[0026] This embodiment discloses a smoke-proof and fire-proof door with an electric protection structure. As shown in the attached Figure 1-11 figure, it includes a door frame 1 and a fire door main body 2 installed in the door frame 1. The fire door main body 2 can be selectively opened inward or outward in the door frame 1. An intelligent protection unit 3 is installed at the inner top of the door frame 1; The intelligent protection unit 3 includes a monitoring camera 31, a fire monitor 32, an intelligent door closer 33, and a connecting bar 34. Monitoring cameras 31 and fire monitors 32 are installed on both sides of the door frame 1. The fire monitor 32 is used to monitor the occurrence of a fire, and the monitoring camera 31 is used to monitor the approach of people when a fire occurs. At the same time, the monitoring camera 31 can monitor the opening direction of the fire door body 2. The fire monitor 32 is internally integrated with an infrared temperature sensor and a smoke sensor for monitoring the occurrence of a fire. By setting fire monitors 32 on both sides, the direction of the fire can be quickly determined when a fire occurs; The intelligent door closer 33 includes a slide rail 331 installed at the inner top of the door frame 1 and a sliding block 332 slidably arranged in the slide rail 331. The connecting bar 34 is installed between the sliding block 332 and the fire door body 2, so that when the sliding block 332 slides, the fire door body 2 is driven to open and close through the connecting bar 34; An electric push rod 336 is installed inside the sliding block 332; the electric push rod 336 is used to block one side of the sliding block 332 when the fire door body 2 is closed, so that the two groups of fire door bodies 2 are closed successively. When the fire door body 2 is opened, the electric push rod 336 is used to assist in pushing the sliding block 332 to move outward; A variable anti-reversal member 337 is arranged inside the sliding block 332, and the variable anti-reversal member 337 is used to limit the opening direction of the fire door body 2.

[0027] The fire door body 2 includes a fire-resistant door panel 21 and a two-way connecting member 22 arranged on one side of the fire-resistant door panel 21. The door frame 1 and the fire-resistant door panel 21 are respectively installed on both sides of the two-way connecting member 22 through hinges, and the opening and closing directions of the two groups of hinges are opposite. A door leaf 24 is integrally formed on the side of the fire-resistant door panel 21 away from the two-way connecting member 22, and a second thermal expansion sealing strip 23 is fixedly assembled on the outer side of the fire-resistant door panel 21.

[0028] A connecting notch 25 is opened at the top of the fire-resistant door panel 21. The outer end of the connecting bar 34 is rotatably connected with a connecting shaft 35, and the connecting shaft 35 is slidably arranged in the connecting notch 25. Protective positions 12 for the connecting bar 34 to flip and store are integrally formed on both sides of the top of the door frame 1. And a wire 36 connected to the intelligent protection unit 3 is fixedly penetrated through one side of the door frame 1. There are two groups of wires 36, which are respectively used for the electrical connection and communication connection between the intelligent door closer 33 and the outside. First thermal expansion sealing strips 14 are fixedly arranged on both sides of the inner top of the door frame 1.

[0029] An activity chamber 13 is opened inside the protective position 12. A self-resetting seal 37 is arranged inside the activity chamber 13. One end of the slide rail 331 extends into the self-resetting seal 37. When the sliding block 332 moves outward, it pushes the self-resetting seal 37 to move upward, so that a cavity for the connecting bar 34 to move is formed at the bottom end of the activity chamber 13.

[0030] The self - resetting seal 37 includes a lifting seat 371 vertically slidably arranged in the movable chamber 13. A thermal expansion sealing plate 372 is fixedly arranged at the bottom of the lifting seat 371. A positioning shaft 373 is fixedly arranged at the top of the lifting seat 371. A memory spring 374 is movably sleeved on the outer surface of the positioning shaft 373. The top end of the positioning shaft 373 is movably inserted into the inner top of the movable chamber 13. An activity groove 375 is formed inside the lifting seat 371. The slide rail 331 is movably arranged in the activity groove 375, so that the lifting seat 371 can move up and down on the outer surface of the end of the slide rail 331.

[0031] A hydraulic spring cylinder 335 is fixedly arranged inside the outer end of the slide rail 331, and the output end of the hydraulic spring cylinder 335 is fixedly connected with the sliding block 332. A chute 333 is formed at the top of the slide rail 331. A wedge - shaped block 334 is fixedly arranged at the top of the sliding block 332. The bottom end of the wedge - shaped block 334 is slidably arranged in the chute 333, and the top end of the wedge - shaped block 334 is movably inserted into the activity groove 375. A spring is arranged inside the hydraulic spring cylinder 335 to make the output end of the hydraulic spring cylinder 335 extend outwards, and at the same time, the internal hydraulic oil is used for damping to avoid bouncing open quickly.

[0032] A locking mechanism 339 is arranged inside the sliding block 332. Two fixing holes 3310 adapted to the locking mechanism 339 are formed in the middle of the chute 333. An infrared sensor 338 is fixedly arranged inside the sliding block 332. An infrared receiver 3311 adapted to the infrared sensor 338 is fixedly arranged at the inner top of the slide rail 331. The position of the sliding block 332 is monitored through the infrared receiver 3311 to determine that a group of fire - resistant door panels 21 are closed in place.

[0033] The locking mechanism 339 includes a first electric telescopic rod 3391 fixedly arranged inside the sliding block 332. A positioning pin 3392 is slidably arranged at the top of the sliding block 332. A transmission bar 3393 is fixedly connected between the output end of the first electric telescopic rod 3391 and the positioning pin 3392. A physical switch 3394 for controlling the expansion and contraction of the first electric telescopic rod 3391 is fixedly embedded on one side of the sliding block 332. The physical switch 3394 is an intelligent switch, and a communication module is embedded inside it, which can remotely control the first electric telescopic rod 3391.

[0034] The variable check member 337 includes a rotating shaft 3371 rotatably disposed in the sliding block 332. The bottom end of the rotating shaft 3371 is fixedly connected to the connecting bar 34. A check bar 3372 is integrally formed in the middle of the rotating shaft 3371. A movable seat 3373 is slidably disposed on the side wall of the sliding block 332. Check blocks 3374 are fixedly disposed at both the upper and lower ends of the movable seat 3373, and the two groups of check blocks 3374 are respectively located on both sides of the check bar 3372. A second electric telescopic rod 3375 is fixedly disposed inside the sliding block 332. The output end of the second electric telescopic rod 3375 is fixedly connected to the movable seat 3373. The second electric telescopic rod 3375 is remotely controlled through an installed communication module.

[0035] Working principle: When the device is in use, the door frame 1 is fixedly installed with the wall, so that the door frame 1 is firmly fixed in the area to be shielded and protected, and there is no gap between the door frame 1 and the wall. Then, the two wires 36 are respectively connected to the external circuit and the communication line; When in use, by pushing the fire-resistant door panel 21 outwards, the two-way connecting member 22 rotates with the door frame 1. At this time, the connecting shaft 35 at the top of the fire-resistant door panel 21 slides inside the connecting notch 25. At the same time, the connecting bar 34 drives the rotating shaft 3371 to rotate clockwise, and one end of the connecting bar 34 follows the fire-resistant door panel 21 to rotate and move outwards. The other end of the connecting bar 34 pulls the sliding block 332 to move along the slide rail 331. Finally, the fire-resistant door panel 21 and the door frame 1 are in a 90-degree open state. At this time, the two-way connecting member 22 is parallel to the fire-resistant door panel 21. At this time, the first electric telescopic rod 3391 is controlled to start through the physical switch 3394, so that the positioning pin 3392 is inserted into the fixing hole 3310 at the far end for fixing, so as to maintain the forward open state of the fire-resistant door panel 21; At the same time, the fire-resistant door panel 21 can also be pulled inwards, so that the fire-resistant door panel 21 rotates with the two-way connecting member 22, and finally the fire-resistant door panel 21 and the door frame 1 are in a 90-degree open state. At this time, the two-way connecting member 22 is parallel to the door frame 1. At this time, the first electric telescopic rod 3391 is controlled to start through the physical switch 3394, so that the positioning pin 3392 is inserted into the fixing hole 3310 at the proximal end for fixing, so as to maintain the reverse open state of the fire-resistant door panel 21; During use, the two groups of fire-resistant door panels 21 remain in a normally open state, and are monitored in real time by the monitoring camera 31 and the fire monitoring device 32. When the fire monitoring device 32 detects a fire, the first electric telescopic rod 3391 is automatically controlled to retract, so that the positioning pin 3392 moves out from the inside of the fixing hole 3310. At this time, the hydraulic spring cylinder 335 pushes the sliding block 332 to move toward the middle along the slide rail 331, so that the inner end of the connecting bar 34 moves toward the middle, and the outer end of the connecting bar 34 pulls the fire-resistant door panels 21 to rotate and close, thereby preventing smoke and fire. The normally open direction of the two groups of fire-resistant door panels 21 can be detected by the monitoring camera 31. If the fire-resistant door panels 21 are opened in the forward direction, the electric push rod 336 on the right side automatically extends when the first electric telescopic rod 3391 retracts, thereby When the left door panel 21 is closed, the infrared sensor 338 on the left side contacts the infrared receiver 3311, and a closing signal is sent. At this time, the electric push rod 336 on the right side contracts, and then the sliding block 332 on the right side slides toward the middle to close. If the two sets of fire-resistant door panels 21 are opened in the opposite direction, when closing, the electric push rod 336 on the left side extends to pre-press the sliding block 332 on the left side, so that the right fire-resistant door panel 21 is closed first, and then the left fire-resistant door panel 21 is closed. In this way, the left and right fire-resistant door panels 21 can be closed in sequence regardless of whether they are opened in the forward or reverse direction, so as to avoid the situation where the two sets of fire-resistant door bodies 2 cannot be closed due to the jamming of the cover 24. When a fire occurs, the fire monitoring devices 32 on both sides can quickly determine which side the fire occurs on. If the fire occurs on the inside, when the two sets of fire-resistant door panels 21 are automatically closed, the infrared sensors 338 on both sides act on the two sets of infrared receivers 3311 respectively, and a non-return signal is given at this time. The variable non-return member 337 is started. At this time, it is judged according to the location of the fire. If the fire occurs in the forward direction, the output end of the second electric telescopic rod 3375 contracts, driving the movable seat 3373 to move downward, so that the top non-return block 3374 blocks the clockwise rotation side of the non-return bar 3372, thereby blocking the rotating shaft 3371, making the rotating shaft 3371 unable to rotate. The fire door 21 is prevented from opening in the forward direction by rotating the second electric telescopic rod 3375 in a clockwise direction and the outer end of the connecting strip 34 cannot move in the forward direction, thereby limiting the forward opening of the fire-resistant door panel 21; if the fire occurs in the reverse direction, the output end of the second electric telescopic rod 3375 drives the movable seat 3373 to move upward, and the anti-return block 3374 at the bottom blocks the counterclockwise rotation side of the anti-return strip 3372, thereby limiting the reverse opening of the fire-resistant door panel 21, so that the fire door body 2 can automatically limit the opening direction when a fire occurs, ensuring that the opening direction of the fire-resistant door panel 21 is aligned with the escape direction, which is conducive to the rapid escape and evacuation of the crowd. At the same time, the escapee can also determine the escape direction according to the opening direction of the fire-resistant door panel 21.

[0036] And during the escape process, when the monitoring camera 31 detects someone approaching the fire-resistant door panel 21, at this time, both electric push rods 336 on both sides are activated. When the escape personnel push the fire-resistant door panel 21 to open, the electric push rod 336 pushes the sliding block 332 to slide to both sides, so that during an emergency escape, the electric push rod 336 can counteract the elastic force of the hydraulic spring cylinder 335, thereby helping the escapee quickly open the fire door main body 2, avoiding accidents caused by the elderly, the weak or children being unable to push the fire-resistant door panel 21, and after opening, the two electric push rods 336 can contract successively according to the opening direction of the fire-resistant door panel 21, so that the two fire-resistant door panels 21 close successively to ensure sealing; And during the use process, when the fire-resistant door panel 21 is opened, the two sliding blocks 332 slide to both sides and are inserted into the movable slots 375, thereby jacking up the lifting seat 371, making a cavity formed at the inner top of the movable chamber 13, so that the connecting bar 34 can twist and move inside the cavity. Finally, when the two sliding blocks 332 slide towards the middle, the wedge-shaped block 334 withdraws from the inside of the movable slot 375. At this time, under the action of the memory spring 374, the lifting seat 371 moves downward and closely adheres to the surface of the second thermal expansion sealing strip 23 on the top of the fire-resistant door panel 21, and the first thermal expansion sealing strip 14 on the inner top of the door frame 1 also abuts against the second thermal expansion sealing strip 23. And at high temperatures, all three expand thermally, thereby effectively achieving sealing and achieving a smoke prevention effect.

[0037] Embodiment

[0038] This embodiment discloses a protection system for a smoke-proof and fire-proof door with an electric protection structure, according to the attached Figure 1-13 As shown, a protection system for a smoke-proof and fire-proof door with an electric protection structure includes a monitoring module, a control module and an execution module. The monitoring module, the control module and the execution module. The monitoring module includes a monitoring camera 31, a fire monitor 32 and an infrared sensor 338. The control module is an intelligent control terminal. The execution module includes a locking mechanism 339, a variable anti-reverse member 337 and an electric push rod 336. The operation logics of the monitoring module, the control module and the execution module are as follows; The fire door body 2 is fixed by the locking mechanism 339 to maintain a normally open state in the forward direction, and at the same time, the fire is monitored by the fire monitor 32; when the fire monitor 32 detects a fire, the locking mechanism 339 is automatically unlocked through the intelligent control terminal, and the electric push rods 336 on both sides are controlled by the intelligent control terminal to expand and contract, so as to ensure that the fire-resistant door panel 21 on the inner side of the door leaf 24 can be closed first, and then the fire-resistant door panel 21 on the outer side of the door leaf 24 is closed, realizing the sequential closing of the two fire door bodies 2; replacing the function of the traditional sequencer, realizing the intelligent control of the closing of the fire-resistant door panel 21; and the fire monitors 32 on both sides can detect the location of the fire. After the two fire-resistant door panels 21 are closed, the infrared sensors 338 on both sides act on the two infrared receivers 3311 respectively, and at this time, a reverse prevention signal is given. At this time, the variable reverse prevention member 337 is controlled by the intelligent control terminal to start, so that the two reverse prevention blocks 3374 automatically block one side of the reverse prevention strip 3372, so that the rotating shaft 3371 can only rotate in one direction, thereby limiting the opening and closing direction of the fire door body 2, so that the fire door body 2 can only open away from the fire occurrence side, facilitating escape, and at the same time indicating the escape direction for the escapees; and after the fire occurs, when the monitoring camera 31 detects that the escape personnel open the fire door body 2 to escape, the electric push rod 336 starts, and the electric push rod 336 is used to assist in pushing the sliding block 332 to slide to both sides, thereby realizing assisted door opening, so that the entire smoke-proof and fire-proof door can realize intelligent opening and closing.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke-proof and fire-proof door with an electric protection structure, comprising a door frame (1) and a fire-proof door body (2) installed in the door frame (1), characterized in that, The fire door body (2) can be selectively opened inward or outward in the door frame (1), and an intelligent protection unit (3) is installed on the inner top of the door frame (1); The intelligent protection unit (3) includes a monitoring camera (31), a fire monitor (32), an intelligent door closer (33) and a connecting bar (34). Monitoring cameras (31) and fire monitors (32) are installed on both sides of the door frame (1). The fire monitor (32) is used to monitor the occurrence of a fire, and the monitoring camera (31) is used to monitor the approach of people when a fire occurs; The intelligent door closer (33) includes a slide rail (331) installed on the inner top of the door frame (1) and a sliding block (332) slidably arranged in the slide rail (331). The connecting bar (34) is installed between the sliding block (332) and the fire door body (2) so that when the sliding block (332) slides, the fire door body (2) is driven to open and close through the connecting bar (34); An electric push rod (336) is installed inside the sliding block (332); the electric push rod (336) is used to block one side of the sliding block (332) when the fire door body (2) is closed, so that the two fire door bodies (2) are closed successively. When the fire door body (2) is opened, the electric push rod (336) is used to assist in pushing the sliding block (332) to move outward; A variable anti-reverse member (337) is arranged inside the sliding block (332), and the variable anti-reverse member (337) is used to limit the opening direction of the fire door body (2).

2. The smoke-proof and fire-proof door with an electric protection structure according to claim 1, characterized in that: The fire door body (2) includes a fire-resistant door panel (21) and a two-way connecting member (22) arranged on one side of the fire-resistant door panel (21). The door frame (1) and the fire-resistant door panel (21) are respectively installed on both sides of the two-way connecting member (22) through hinges, and the opening and closing directions of the two hinges are opposite. A door leaf (24) is integrally formed on the side of the fire-resistant door panel (21) away from the two-way connecting member (22), and a second thermal expansion sealing strip (23) is fixedly assembled on the outer side of the fire-resistant door panel (21).

3. The smoke-proof and fire-proof door with an electric protection structure according to claim 2, characterized in that: A connecting notch (25) is opened at the top of the fire-resistant door panel (21). The outer end of the connecting bar (34) is rotatably connected with a connecting shaft (35), and the connecting shaft (35) is slidably arranged in the connecting notch (25). Protective positions (12) for the connecting bar (34) to be flipped and stored are integrally formed on both sides of the top of the door frame (1), and a wire (36) connected to the intelligent protection unit (3) is fixedly penetrated through one side of the door frame (1). First thermal expansion sealing strips (14) are fixedly arranged on both sides of the inner top of the door frame (1).

4. The smoke-proof and fire-proof door with an electric protection structure according to claim 3, wherein: An activity chamber (13) is opened inside the protective position (12), and a self-resetting sealing member (37) is arranged inside the activity chamber (13). One end of the slide rail (331) extends into the self-resetting sealing member (37). When the sliding block (332) moves outward, the self-resetting sealing member (37) is pushed upward, so that a cavity for the connecting bar (34) to move is formed at the bottom end of the activity chamber (13).

5. The smoke-proof and fire-proof door with an electric protection structure according to claim 4, characterized in that: The self-resetting seal (37) includes a lifting seat (371) vertically slidably arranged in the movable chamber (13). A thermal expansion sealing plate (372) is fixedly arranged at the bottom of the lifting seat (371). A positioning shaft (373) is fixedly arranged at the top of the lifting seat (371). A memory spring (374) is movably sleeved on the outer surface of the positioning shaft (373). The top end of the positioning shaft (373) is movably inserted into the inner top of the movable chamber (13). An activity groove (375) is formed inside the lifting seat (371), and the slide rail (331) is movably arranged in the activity groove (375).

6. The smoke-proof and fire-proof door with an electric protection structure according to claim 5, characterized in that: A hydraulic spring cylinder (335) is fixedly arranged inside the outer end of the slide rail (331), and the output end of the hydraulic spring cylinder (335) is fixedly connected with the sliding block (332). A chute (333) is formed at the top of the slide rail (331). A wedge block (334) is fixedly arranged at the top of the sliding block (332). The bottom end of the wedge block (334) is slidably arranged in the chute (333), and the top end of the wedge block (334) is movably inserted into the activity groove (375).

7. The smoke-proof and fire-proof door with an electric protection structure according to claim 6, characterized in that: A locking mechanism (339) is arranged inside the sliding block (332). Two fixing holes (3310) adapted to the locking mechanism (339) are formed in the middle of the chute (333). An infrared sensor (338) is fixedly arranged inside the sliding block (332). An infrared receiver (3311) adapted to the infrared sensor (338) is fixedly arranged at the inner top of the slide rail (331). The position of the sliding block (332) is monitored by the infrared receiver (3311) to determine that one of the fireproof door panels (21) is closed in place.

8. The smoke-proof and fire-proof door with an electric protection structure according to claim 7, characterized in that: The locking mechanism (339) includes a first electric telescopic rod (3391) fixedly arranged inside the sliding block (332). A positioning pin (3392) is slidably arranged at the top of the sliding block (332). A transmission bar (3393) is fixedly connected between the output end of the first electric telescopic rod (3391) and the positioning pin (3392). A physical switch (3394) for controlling the telescopic movement of the first electric telescopic rod (3391) is fixedly embedded on one side of the sliding block (332).

9. The smoke-proof and fire-proof door with an electric protection structure according to claim 1, characterized in that: The variable check valve (337) includes a rotating shaft (3371) rotatably arranged in the sliding block (332). The bottom end of the rotating shaft (3371) is fixedly connected with a connecting bar (34). A check strip (3372) is integrally formed in the middle of the rotating shaft (3371). A movable seat (3373) is slidably arranged on the side wall of the sliding block (332). Check blocks (3374) are fixedly arranged at both the upper and lower ends of the movable seat (3373), and the two check blocks (3374) are respectively located on both sides of the check strip (3372). A second electric telescopic rod (3375) is fixedly arranged inside the sliding block (332), and the output end of the second electric telescopic rod (3375) is fixedly connected with the movable seat (3373).

10. The protection system of a smoke-proof and fire-proof door with an electric protection structure according to any one of claims 1-9, characterized in that: It includes a monitoring module, a control module and an execution module. The monitoring module, the control module and the execution module. The monitoring module includes the monitoring camera (31), the fire monitor (32) and the infrared sensor (338). The control module is an intelligent control terminal. The execution module includes the locking mechanism (339), the variable check valve (337) and the electric push rod (336). The operation logic of the monitoring module, the control module and the execution module is as follows; S1. The fire door body (2) is fixed by the locking mechanism (339) to maintain a normally open state in the forward direction, and at the same time, fire monitoring is carried out by the fire monitor (32); S2. When the fire monitor (32) detects a fire, the locking mechanism (339) is automatically unlocked through the intelligent control terminal, and the two fire door bodies (2) are closed successively through the electric push rod (336); S3. The fire monitor (32) detects the location of the fire and controls the variable check valve (337) to limit the opening and closing direction of the fire door body (2); S4. When the monitoring camera (31) detects that the escape personnel open the fire door body (2) to escape, the electric push rod (336) is activated to assist in opening the door.

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