An intelligent fire door for emergency escape in corridors

Abstract

The present invention relates to the field of fire prevention equipment, and in particular to an intelligent fire door for emergency escape in a corridor, comprising a door frame; a guide rod, a moving block, a connecting assembly and a fire door body, etc.; a guide rod is fixed in the door frame; two moving blocks are slidably connected to the guide rod; each moving block is connected to a connecting assembly; each connecting assembly is connected to a fire door body. The present invention realizes switching between sliding opening and flipping opening according to different situations through the fire door body, effectively dealing with the problem that the fire door body cannot be closed due to debris stuck in it and the daily traffic efficiency of personnel, and the gap between the fire door body and the ground is closed by a closing unit, thereby avoiding a certain space between the lower side of the fire door body and the ground, resulting in poor overall sealing of the fire door; and at the same time reducing the resistance when the fire door body is opened and closed.

Description

Technical Field

[0001] The invention relates to the field of fire protection equipment, and in particular to an intelligent fire protection door for emergency escape in a corridor. Background Art

[0002] A fire door is a door specially designed to prevent the spread of fire and smoke. It is usually installed in stairwells, between fire partitions, important equipment rooms, etc. Fire doors are divided into normally open and normally closed types. Normally closed fire doors can close automatically after being opened, thereby isolating internal passages from escape passages in daily use.

[0003] The existing normally closed fire doors are of the flip-open type. In daily use, most people have a weak awareness of fire safety and pile up debris around the fire doors, making the normally closed fire doors unable to be opened, resulting in people being unable to escape through the fire doors in the event of a fire.

[0004] After a fire occurs, the dust and harmful gases produced by combustion gather upwards under the action of high temperature. When people open the fire door to escape, the other side is already filled with smoke and dust. If they are caught off guard when opening the door, the airflow caused by opening the door will cause people to inhale a large amount of smoke and dust, affecting their escape. Summary of the invention

[0005] In order to overcome the disadvantages that debris accumulates around the fire door, the normally closed fire door cannot be opened, resulting in people being unable to escape through the fire door when a fire occurs, and the airflow drives the smoke and dust on the other side to cause people to inhale a large amount of smoke at the moment the fire door is opened, thus affecting people's escape, the present invention provides an intelligent fire door for emergency escape in the corridor.

[0006] Technical solution: An intelligent fireproof door for emergency escape in a corridor, comprising a door frame; a guide rod, a moving block, a connecting assembly, a fireproof door body and an elastic member I; a guide rod is fixedly connected in the door frame; an elastic member I is arranged on the guide rod; two moving blocks are slidably connected to the guide rod; both ends of the elastic member I are respectively fixedly connected to the two moving blocks; each moving block is connected to a connecting assembly; each connecting assembly is connected to a fireproof door body; each fireproof door body is fixedly connected to a number of handles; and two flaps are arranged on the door frame.

[0007] Optionally, the connecting assembly includes a rotating shaft and a connecting block; each moving block is rotatably connected to a rotating shaft on the lower side; the two rotating shafts are respectively fixed to the back sides of two fire door bodies; each moving block is fixed to a plurality of connecting blocks on the lower side; each fire door body is provided with a plurality of arc grooves; each arc groove is adapted to a connecting block.

[0008] Optionally, the connecting block consists of an upper small cylinder and a lower large cylinder.

[0009] Optionally, a baffle is also included; the baffle is fixedly connected to the front side of the door frame.

[0010] Optionally, a closing unit is also included, which includes an elastic part II, a connecting shaft and a blocking plate; two elastic parts II are fixedly connected to the front and rear sides of the fire door body; each elastic part II is fixedly connected to a connecting shaft at the free end; and the connecting shafts on the same side are connected to a blocking plate via a torsion spring.

[0011] Optionally, a fireproof rubber strip is fixed to the lower side of the blocking plate to increase the fit with the ground.

[0012] Optionally, a locking assembly is also included, which includes a guide rail, an electric slider, a card block, an insertion rod and a limit block; each moving block is provided with an active cavity; each moving block is fixedly connected to two guide rails; each guide rail is slidably connected to an electric slider; a card block is fixedly connected between all the electric sliders on each moving block; the card block moves in the corresponding active cavity; two card slots are provided on the guide rod; the card block is adapted to the adjacent card slots; each card block is fixedly connected to the lower side A plug rod; the plug rod is inserted into the corresponding rotating shaft; a limit block is fixedly connected to the lower side of each plug rod; a limit groove matched with the limit block is opened on the lower side of the rotating shaft; the fire door body is composed of an upper door body and a lower door body; the rotating shaft is fixedly connected to the upper door body; the upper door body and the lower door body are slidably connected; an elastic member III is fixedly connected in the upper door body; the elastic member III is fixedly connected to the lower door body; handles are fixedly connected to the upper door body and the lower door body; another limit groove is opened on the lower door body, and the limit block is matched with the limit groove on the lower door body.

[0013] Optionally, the upper side of the card block is arc-shaped.

[0014] Optionally, it also includes an airbag; two airbags are installed in the door frame; the airbag is provided with an air intake pipe; the air intake pipe is provided with a one-way air intake valve; each airbag is fixedly connected to a lower door body; the lower door body is hollow and connected with adjacent airbags, and a one-way exhaust valve is provided at the connection point; and a plurality of exhaust holes are provided on the lower door body.

[0015] Optionally, the air inlet pipe is arranged at the lower side of the door frame, and the air inlet port faces the ground.

[0016] Compared with the prior art, the present invention has the following advantages: the present invention realizes switching between sliding opening and flipping opening according to different situations through the fire door body, effectively dealing with the problem that debris is stuck in the fire door body and cannot be closed and the daily traffic efficiency of personnel;

[0017] The gap between the fire door body and the ground is closed by the closing unit, thereby avoiding a certain space between the lower side of the fire door body and the ground, resulting in poor overall sealing of the fire door; at the same time, the resistance of the fire door body when opening and closing is reduced;

[0018] By dividing the fire door into two parts, when a fire generates a lot of smoke, people can be guided to evacuate in a safe posture to prevent them from inhaling dust and harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the intelligent fire door for emergency escape in the corridor of the present invention;

[0020] Figure 2 A state diagram of the fire door body of the present invention sliding open;

[0021] Figure 3 It is a schematic diagram of a first three-dimensional structure of a fire door body of the present invention in a flipped open state;

[0022] Figure 4 A second three-dimensional structural schematic diagram of the fire door body of the present invention in a flipped open state;

[0023] Figure 5 is a cross-sectional view of a door frame of the present invention;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the fireproof door body, the blocking plate and the airbag combination of the present invention;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the fire door body, elastic member II, connecting shaft and blocking plate combination of the present invention;

[0026] Figure 8 It is a right side view of the fire door body, connecting shaft and blocking plate combination of the present invention;

[0027] Fig. 9 It is a right side view of the door frame and baffle combination of the present invention, and the arrow in the figure indicates the escape direction;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the lower door body of the present invention in an open state;

[0029] Fig.11 is a diagram of the initial state of the locking assembly of the present invention;

[0030] Fig.12 A state diagram of the locking assembly of the present invention locking the upper door body;

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the upper door body, elastic member III and lower door body combined according to the present invention.

[0032] Markings in the accompanying drawings: 1-door frame, 1001-flap, 1002-baffle, 2-guide rod, 2001-slot, 3-moving block, 3001-movable cavity, 4-fireproof door body, 4001-handle, 4002-arc groove, 101-elastic part I, 21-rotating shaft, 22-connecting block, 31-guide rail, 32-electric slider, 33-block, 34-insertion rod, 35-limiting block, 41-elastic part II, 42-connecting shaft, 43-blocking plate, 401-upper door body, 40101-elastic part III, 402-lower door body, 40201-exhaust hole, 51-airbag, 5101-intake pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] like Figure 1-Figure 9 As shown, an intelligent fireproof door for emergency escape in a corridor includes a door frame 1;

[0036] It also includes a guide rod 2, a moving block 3, a connecting assembly, a fire door body 4 and an elastic member Ⅰ101; a guide rod 2 is fixedly connected inside the door frame 1; an elastic member Ⅰ101 is arranged on the guide rod 2; the elastic member Ⅰ101 is a spring; two moving blocks 3 are slidably connected to the guide rod 2; the two ends of the elastic member Ⅰ101 are respectively fixedly connected to the two moving blocks 3; a connecting assembly is connected to the lower side of each moving block 3; each connecting assembly is connected to a fire door body 4; a number of handles 4001 symmetrically arranged front and back are welded on each fire door body 4; two flaps 1001 are arranged on the door frame 1; when the fire door body 4 slides open, the flaps 1001 increase the area of ​​the door frame 1 surrounding the fire door body 4, so that the opposite sides of the two fire door bodies 4 are always embedded in the door frame 1, and when the fire door body 4 is flipped open, the flaps 1001 follow and flip in the opening direction to avoid obstruction.

[0037] The connecting assembly includes a rotating shaft 21 and a connecting block 22; each moving block 3 is rotatably connected to a rotating shaft 21 on the lower side through a spring hinge; the two rotating shafts 21 are respectively fixed to the back sides of two fire door bodies 4; each moving block 3 is fixed to a plurality of connecting blocks 22 on the lower side; each fire door body 4 is provided with a plurality of arc grooves 4002 on the upper side; each arc groove 4002 is adapted to a connecting block 22, thereby increasing the stability of the connection between the moving block 3 and the fire door body 4 when the fire door body 4 is in a sliding opening mode.

[0038] The connecting block 22 is composed of a small upper cylinder and a large lower cylinder to ensure smoothness of entering and exiting the arc groove 4002.

[0039] It also includes a baffle 1002; the baffle 1002 is fixedly connected to the front side of the door frame 1; the fire door body 4 is flipped open toward the rear side, and the baffle 1002 closes the gap between the front upper side of the fire door body 4 and the door frame 1, thereby enhancing the sealing of the fire door body 4 when it is closed.

[0040] When installing the present invention, it is fixed to the building through the door frame 1, and then the remaining parts are assembled on the door frame 1. The present invention is connected to the fire host system to grasp the fire situation in real time. The electric components are powered by the fire emergency power supply and are connected to the intelligent control system to monitor the status of the fire door body 4 and control the operation of the electric components.

[0041] The front side of the present invention is the direction of the internal passage, and the rear side is the direction of the escape passage.

[0042] The present invention is a normally closed fire door. In the normally closed state, Figure 5 As shown, the elastic member Ⅰ101 is in a normal state, the two fire door bodies 4 are closed, isolating the internal passage from the escape passage, and the two fire door bodies 4 are rotatably connected to the moving block 3 through the rotating shaft 21, thereby opening and closing the doors in a flipping manner, and the rotating shaft 21 is connected to the moving block 3 through a spring hinge, thereby causing the fire door bodies 4 to close automatically.

[0043] The existing normally closed fire doors are flip open. In daily use, most people have a weak fire awareness and pile up debris around the fire doors, making the normally closed fire doors unable to open, resulting in people being unable to escape through the fire doors in time when a fire occurs.

[0044] When the fire door body 4 is blocked by debris and cannot be flipped open, after a fire occurs, the escapee manually pulls the handle 4001 to drive the corresponding fire door body 4 to slide to both sides. The fire door body 4 drives the moving block 3 to slide along the guide rod 2 to both sides through the rotating shaft 21 and the connecting block 22. When the two moving blocks 3 move away from each other, the elastic member Ⅰ101 is stretched, and finally Figure 2 As shown, the fire door body 4 is pulled open in a sliding manner, so that people can escape through the fire door body 4, avoiding the traditional flip-open fire door being blocked by debris, and the fire door cannot be flipped open, resulting in people being unable to escape through the fire door in time when a fire occurs.

[0045] After people escape through the fire door body 4, the elastic member Ⅰ101 contracts and resets, driving the two moving blocks 3 to approach each other, and then the two fire door bodies 4 slide close to each other, and finally the two fire door bodies 4 reset and close, continuing to isolate the internal passage and the escape passage to prevent the spread of fire.

[0046] The present invention is a flip and slide dual-purpose door. During daily use, the fire door body 4 is mainly opened and closed in a flipping manner. People can open the door by touching the fire door body 4 with any part of their body, which is convenient for people to pass.

[0047] Example 2

[0048] On the basis of Example 1, Figure 3 and Figure 6-Figure 8 As shown, a closing unit is also included, which includes an elastic member II 41, a connecting shaft 42 and a blocking plate 43; two elastic members II 41 are fixedly connected to the front and rear sides of the fire door body 4; a connecting shaft 42 is fixedly connected to the free end of each elastic member II 41; and a blocking plate 43 is commonly connected between the connecting shafts 42 on the same side through a torsion spring.

[0049] A fireproof rubber strip is fixed to the lower side of the blocking plate 43 to increase the fit with the ground and ensure the sealing of the fireproof door body 4.

[0050] When the fire door is flipped and opened, there is a lot of friction between the fire door and the ground. Therefore, a certain amount of space is left between the lower side and the ground when the fire door is designed, resulting in poor overall sealing of the fire door.

[0051] by Figure 3 As a reference, when the fire door body 4 flips backward and opens, it drives the blocking plate 43 to move together, and the blocking plate 43 will come into frictional contact with the ground. The friction resistance causes the blocking plate 43 to flip forward relative to the fire door body 4 with the connecting shaft 42 as the center, and then the blocking plate 43 is flipped and retracted, reducing the friction with the ground and thus reducing the resistance of the fire door body 4 when opening and closing, making it easier for people to open the fire door body 4; when the fire door body 4 closes autonomously, the blocking plate 43 reverses direction to reduce the resistance of the fire door body 4 when closing, ensuring that the fire door body 4 can close autonomously; after the fire door body 4 is closed, the blocking plate 43 is reset under the action of the torsion spring, and the lower side of the fire door body 4 is sealed with the ground to ensure the sealing effect.

[0052] There is a small area of ​​unevenness on the ground below the fire door body 4. The elastic member II 41 squeezes the connecting shaft 42 so that the blocking plate 43 is pressed downward against the ground, further ensuring the sealing of the lower side of the fire door body 4.

[0053] Example 3

[0054] On the basis of Example 2, Figure 6 and Figure 10-13As shown, it also includes a locking component, which includes a guide rail 31, an electric slider 32, a block 33, an insertion rod 34 and a limit block 35; an active cavity 3001 is provided on the opposite sides of the two moving blocks 3; two guide rails 31 are fixedly connected to the opposite sides of the two moving blocks 3; each guide rail 31 is slidably connected to an electric slider 32; a block 33 is fixedly connected between all the electric sliders 32 on each moving block 3; the block 33 moves in the corresponding active cavity 3001; two left-right symmetrical slots 2001 are provided on the guide rod 2; the block 33 is adapted to the adjacent slots 2001, thereby locking the moving block 3 and the guide rod 2; a plug is fixedly connected to the lower side of each block 33 34; the insertion rod 34 is passed through the corresponding rotating shaft 21; a limit block 35 is fixedly connected to the lower side of each insertion rod 34; a limit groove matched with the limit block 35 is provided on the lower side of the rotating shaft 21; the fire door body 4 is composed of an upper door body 401 and a lower door body 402; the rotating shaft 21 is fixedly connected to the upper door body 401; the upper door body 401 and the lower door body 402 are slidably connected; an elastic member III 40101 is fixedly connected in the upper door body 401; the elastic member III 40101 is a spring; the elastic member III 40101 is fixedly connected to the lower door body 402; handles 4001 are fixedly connected to the upper door body 401 and the lower door body 402; another limit groove is provided on the lower door body 402, and the limit block 35 is matched with the limit groove on the lower door body 402.

[0055] The upper side of the card block 33 is arc-shaped, so as to be easily inserted into the card slot 2001 .

[0056] It also includes an airbag 51; two airbags 51 are installed in the door frame 1; the airbag 51 is provided with an air intake pipe 5101; the air intake pipe 5101 is provided with a one-way air intake valve; each airbag 51 is fixedly connected to a lower door body 402; the lower door body 402 is hollow and connected with the adjacent airbags 51, and a one-way exhaust valve is provided at the connection point; a plurality of exhaust holes 40201 are provided on the lower door body 402.

[0057] The air inlet pipe 5101 is arranged at the lower side of the door frame 1, and the air inlet port faces the ground to prevent the smoke generated by the fire from being inhaled when the airbag 51 is inflated.

[0058] After a fire occurs, the smoke produced by combustion will gather upwards under the action of high temperature. At this time, people should lower their bodies and evacuate to avoid inhaling dust and harmful gases.

[0059] A smoke alarm is provided on the door frame 1 of the present invention at a position close to the waist height of the human body and is linked to the fire-fighting host. The smoke generated by the fire gathers upward and cannot be discharged, and gradually spreads downward to trigger the smoke alarm. Then the fire-fighting host knows that the smoke position has reached the waist height of the human body. The fire-fighting host sends a signal to the intelligent control system of the present invention. The intelligent control system controls the electric slider 32 to move upward along the guide rail 31, and the electric slider 32 drives the card block 33 to snap into the card slot 2001 upward, locking the moving block 3 and the guide rod 2, so that the upper door body 401 cannot slide open; the card block 33 moves upward and drives the insertion rod 34 to move upward at the same time, and the insertion rod 34 drives the limit block 35 to move upward, and then the limit block 35 moves from the initial limit position of the lower door body 402. The limit block 35 releases the lock of the lower door body 402 and the upper door body 401, so that the lower door body 402 can slide relative to the upper door body 401; at the same time, the limit block 35 locks the rotating shaft 21 and the insertion rod 34, so that the rotating shaft 21 cannot rotate relative to the moving block 3, thereby the upper door body 401 is in a closed state and cannot be opened, reducing the circulation of smoke and dust gathered in the upper part of the two spaces inside and outside the door when people open the door; and the lower door body 402 can slide open relative to the upper door body 401 for people to evacuate; when the lower door body 402 slides open, the elastic part III 40101 is stretched, and when the people pass through, the elastic part III 40101 contracts, driving the lower door body 402 to reset and close for isolation.

[0060] Light prompt signs are provided on the surfaces of the upper door body 401 and the lower door body 402 to remind personnel how to open the fire door body 4 of the present invention. At the same time, personnel need to lower their bodies to pass through the lower door body 402, which can only be opened, to reduce the smoke and dust inhaled by personnel and remind personnel to evacuate in the correct posture.

[0061] When a person opens the fire door to escape, smoke and dust are already spreading on the other side, and the person is caught off guard when the door is opened. The airflow caused by the door opening will cause the person to inhale a large amount of smoke and dust, affecting the person's escape. Therefore, when the person slides open the lower door body 402, the lower door body 402 squeezes the airbag 51, and the air inside the airbag 51 enters the lower door body 402 and is discharged outward through the exhaust holes 40201 on the lower door body 402, thereby blowing away the smoke and dust around the lower door body 402, thereby preventing the airflow caused by the door opening from causing the person to inhale a large amount of smoke and dust, affecting the person's escape.

[0062] When a person passes through the lower door body 402, the lower door body 402 is reset, pulling the airbag 51 to expand, and the airbag 51 inhales outside air through the air inlet pipe 5101 to re-expand, so as to facilitate the next use.

[0063] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. An intelligent fireproof door for emergency escape in a corridor, comprising a door frame (1); wherein: The door frame (1) further comprises a guide rod (2), a moving block (3), a connecting assembly, a fireproof door body (4) and an elastic member I (101); the guide rod (2) is fixedly connected inside the door frame (1); the guide rod (2) is provided with an elastic member I (101); two moving blocks (3) are slidably connected to the guide rod (2); two ends of the elastic member I (101) are respectively fixedly connected to the two moving blocks (3); each moving block (3) is connected to a connecting assembly; each connecting assembly is connected to a fireproof door body (4); each fireproof door body (4) is fixedly connected to a plurality of handles (4001); and two flaps (1001) are provided on the door frame (1); It also includes a baffle (1002); the baffle (1002) is fixedly connected to the front side of the door frame (1); The locking assembly also includes a guide rail (31), an electric slider (32), a clamping block (33), an insertion rod (34) and a limit block (35); each movable block (3) is provided with an active cavity (3001); each movable block (3) is fixedly connected to two guide rails (31); each guide rail (31) is slidably connected to an electric slider (32); a clamping block (33) is fixedly connected between all the electric sliders (32) on each movable block (3); the clamping block (33) moves in the corresponding active cavity (3001); the guide rod (2) is provided with two clamping grooves (2001); the clamping block (33) is matched with the adjacent clamping grooves (2001); a clamping rod (34) is fixedly connected to the lower side of each clamping block (33); the clamping rod (34) The fireproof door body (4) is provided in the corresponding rotating shaft (21); a limit block (35) is fixedly connected to the lower side of each insertion rod (34); a limit groove matching the limit block (35) is provided on the lower side of the rotating shaft (21); the fireproof door body (4) is composed of an upper door body (401) and a lower door body (402); the rotating shaft (21) is fixedly connected to the upper door body (401); the upper door body (401) and the lower door body (402) are slidably connected; an elastic member III (40101) is fixedly connected in the upper door body (401); the elastic member III (40101) is fixedly connected to the lower door body (402); a handle (4001) is fixedly connected to both the upper door body (401) and the lower door body (402); another limit groove is provided on the lower door body (402), and the limit block (35) matches the limit groove on the lower door body (402); The connection assembly comprises a rotating shaft (21) and a connecting block (22); each moving block (3) is rotatably connected to a rotating shaft (21) on its lower side; the two rotating shafts (21) are respectively fixedly connected to the opposite sides of two fireproof door bodies (4); each moving block (3) is fixedly connected to a plurality of connecting blocks (22) on its lower side; each fireproof door body (4) is provided with a plurality of arc grooves (4002); each arc groove (4002) is matched with a connecting block (22).

2. The intelligent fire door for emergency escape in a corridor according to claim 1 is characterized by: The connecting block (22) is composed of an upper small cylinder and a lower large cylinder.

3. The intelligent fire door for emergency escape in a corridor according to claim 2 is characterized by: The invention also comprises a sealing unit, which comprises an elastic member II (41), a connecting shaft (42) and a blocking plate (43); two elastic members II (41) are fixedly connected to the front and rear sides of the fire door body (4); a connecting shaft (42) is fixedly connected to the free end of each elastic member II (41); and the blocking plate (43) is connected to the connecting shafts (42) on the same side via a torsion spring.

4. The intelligent fire door for emergency escape in a corridor according to claim 3 is characterized by: A fireproof rubber strip is fixedly connected to the lower side of the blocking plate (43) to increase the fit with the ground.

5. The intelligent fire door for emergency escape in a corridor according to claim 4 is characterized by: The upper side of the clamping block (33) is arc-shaped.

6. The intelligent fire door for emergency escape in a corridor according to claim 5 is characterized by: The door frame (1) further comprises an airbag (51); two airbags (51) are installed in the door frame (1); the airbag (51) is provided with an air intake pipe (5101); the air intake pipe (5101) is provided with a one-way air intake valve; each airbag (51) is fixedly connected to a lower door body (402); the lower door body (402) is hollow and communicates with an adjacent airbag (51), and a one-way exhaust valve is provided at the communication point; and a plurality of exhaust holes (40201) are provided on the lower door body (402).

7. The intelligent fire door for emergency escape in a corridor according to claim 6 is characterized by: The air intake pipe (5101) is arranged on the lower side of the door frame (1), and the air intake port faces the ground.

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