Fireproof door capable of meeting fire-fighting two-way evacuation

Abstract

The fireproof door comprises a door frame, the door frame comprises a first channel and a second channel, a first fireproof door plate is installed at the first channel, a second fireproof door plate is installed at the second channel, the first fireproof door plate is driven by a first electric door closer, and the second fireproof door plate is driven by a second electric door closer. The second fireproof door plate is driven by a second electric door closer, the first electric door closer and the second electric door closer each comprise a base, and a motor, a control module and a standby power supply are arranged in each base. The technical key points are as follows: bidirectional opening and closing are supported, fireproof safety and passing convenience are both considered, bidirectional escape ability and multidirectional evacuation paths are provided, people are allowed to rapidly evacuate from two directions, congestion of a single exit is avoided, the door is particularly suitable for crowded places, normal evacuation can still be performed even if a fire source is located on one side of the door and the other side of the door, and escape blind areas are reduced; the fire-fighting evacuation efficiency is improved, and an infrared sensing mechanism achieves anti-pinch.

Description

Technical Field

[0001] The present invention relates to the technical field of fire doors, and in particular to a fire door capable of meeting the requirements of two-way fire evacuation. Background Art

[0002] Fire doors are crucial firefighting features in buildings, primarily used to prevent the spread of fire and smoke, buying time for evacuation and firefighting. Fire doors are categorized by material, including steel, wood, and steel-wood composite doors. They are also classified by fire resistance rating, including Class A, Class B, and Class C. They are primarily used in high-rise buildings, such as stairwells, elevator shafts, and ductwork; in public spaces, such as shopping malls, cinemas, and hospitals, for emergency exits; and in equipment areas with high fire risks, such as distribution rooms, computer rooms, and warehouses.

[0003] Traditional fire doors are mostly one-way opening. One-way fire doors only allow people to flow in one direction, usually towards the emergency exit. In crowded places, the one-way congestion of people may lead to a decrease in evacuation speed and even cause stampede accidents. Normally closed fire doors require frequent manual opening and closing, which makes barrier-free passage inconvenient. Normally open fire doors rely on electric door closers. If a power outage occurs, the door closer will fail, thus affecting the normal opening and closing of the fire door. Summary of the Invention

[0004] Technical issues solved:

[0005] In response to the shortcomings of the existing technology, the present invention provides a fire door that can meet the needs of two-way fire evacuation, supports two-way opening and closing, takes into account fire safety and convenience of passage, has two-way escape capabilities, and multi-directional evacuation paths, allowing people to evacuate quickly from two directions, avoiding congestion in a single exit, and is particularly suitable for places with a large number of people. Even if the fire source is on one side of the door, the other side can still be evacuated normally, reducing escape blind spots and improving fire evacuation efficiency. The infrared sensing mechanism realizes anti-pinch, which solves the technical problems mentioned in the background technology.

[0006] Technical solution:

[0007] To achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A fire door capable of meeting two-way fire evacuation comprises a door frame, the door frame comprising a first channel and a second channel, a first fire door panel is installed at the first channel, and a second fire door panel is installed at the second channel, supporting two-way opening and closing, taking into account both fire safety and passage convenience, the first fire door panel is driven by a first electric door closer, the second fire door panel is driven by a second electric door closer, the first fire door panel is hinged to the door frame, the second fire door panel is hinged to the door frame, the first electric door closer and the second electric door closer both comprise a base, the base has a built-in motor, a control module and a backup power supply, the output shaft of the motor is fixed Connect the drive shaft, the drive shaft is fixedly connected to the first swing arm, the first swing arm is rotatably connected to the second swing arm, one end of the second swing arm is fixedly provided with a first connecting seat, the bottom of the base is fixedly provided with a second connecting seat, the second connecting seat is fixed on the door frame, the first connecting seat of the first electric door closer is fixed on the first fireproof door panel, the first connecting seat of the second electric door closer is fixed on the second fireproof door panel, when the motor is working, it drives the drive shaft at one end thereof to rotate, the drive shaft drives the first swing arm to move, the first swing arm drives the second swing arm to move, and the second swing arm drives the fireproof door panel fixed thereto to deflect relative to the door frame, so as to realize the opening and closing of the fireproof door panel.

[0009] In one possible implementation, a first connecting hole is provided on the first connecting seat, the first connecting seat of the first electric door closer and the first fireproof door panel are fixedly connected by screws, and the first connecting seat of the second electric door closer and the second fireproof door panel are fixedly connected by screws. The first electric door closer and the second electric door closer can be replaced separately, and maintenance is convenient.

[0010] In a possible implementation, a second connection hole is formed on the second connection seat, and the second connection seat is fixedly connected to the door frame by screws.

[0011] In one possible implementation, a first smoke detector and a second smoke detector are installed on the door frame. The first smoke detector is located in front of the first fire door panel, and the second smoke detector is located in front of the second fire door panel. When the fire linkage fails, the electric door closer can be controlled by the smoke detector to close the fire door panel for double protection.

[0012] In a possible implementation, both the first fireproof door panel and the second fireproof door panel are provided with handles.

[0013] In one possible implementation, the first electric door closer and the second electric door closer both include power interfaces, and a main power supply and a backup power supply are used together. When the main power supply is accidentally cut off, the backup power supply is used to provide power support to ensure that all components can work normally in an emergency.

[0014] In a possible implementation, the first electric door closer and the second electric door closer both include a first indicator light and a second indicator light. Both the first electric door closer and the second electric door closer support self-testing. The first indicator light is on during normal operation, and the second indicator light is on during failure.

[0015] In one possible implementation, a first infrared sensor is provided on the door frame at the first channel, and a second infrared sensor is provided on the door frame at the second channel. When an object enters the sensing area of the first infrared sensor, it detects that a person has passed through, and the first fireproof door panel at the first channel will not be closed, thereby achieving anti-pinch. When an object enters the sensing area of the second infrared sensor, it detects that a person has passed through, and the second fireproof door panel at the second channel will not be closed, thereby achieving anti-pinch.

[0016] In one possible implementation, the first infrared sensor and the second infrared sensor both include an infrared transmitting module and an infrared receiving module. The infrared transmitting module transmits infrared light of a specific wavelength, and the infrared receiving module is responsible for receiving reflected or transmitted infrared light to determine whether the target exists, its distance, or its motion status.

[0017] In one possible implementation, a first fireproof sealing strip is provided on the inner edge of the first fireproof door panel, and a second fireproof sealing strip is provided on the inner edge of the second fireproof door panel. When the first fireproof door panel and the second fireproof door panel are closed, the pressure of the two fireproof door panels fits tightly together to achieve sealing at the connection, ensuring isolation of fire and smoke in the event of a fire.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention includes two sets of passages, namely the first channel and the second channel, which support two-way opening and closing, taking into account fire safety and convenience of passage, and have two-way escape capabilities and multi-directional evacuation paths, allowing people to evacuate quickly from two directions to avoid congestion in a single exit. It is particularly suitable for places with a large number of people. Even if the fire source is on one side of the door, the other side can still be evacuated normally, reducing escape blind spots and improving fire evacuation efficiency.

[0020] 2. The main power supply and the backup power supply of the present invention are used together. When the main power supply is accidentally cut off, the backup power supply is used to provide power support to ensure that all components can work normally in an emergency.

[0021] 3. The first infrared sensor of the present invention forms an infrared sensing mechanism, forming an infrared sensing area at the first channel. The second infrared sensor forms an infrared sensing mechanism, forming an infrared sensing area at the second channel. When an object is detected passing through, the fire door panel will not be closed. When the fire door panel is driven by the electric door closer to close the door, it can also immediately stop closing the door and return, thereby preventing pinching and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0023] Figure 1 A schematic diagram of the structure of a side view of the present invention;

[0024] Figure 2 is another side view structural schematic diagram of the present invention;

[0025] Figure 3 It is the front view of the present invention;

[0026] Figure 4 Schematic diagram of the opening of the first fireproof door panel and the second fireproof door panel of the present invention;

[0027] Figure 5 Schematic diagram of the closing of the first fireproof door panel and the second fireproof door panel of the present invention;

[0028] Figure 6 A perspective view of a first electric door closer and a second electric door closer according to the present invention;

[0029] Figure 7 Schematic diagram of the internal structure of the first electric door closer and the second electric door closer of the present invention;

[0030] Figure 8 for Figure 1 A partial enlarged view of area A in the middle;

[0031] Figure 9 for Figure 2 A partial enlarged view of area B in the middle;

[0032] Figure 10 for Figure 5 A partial enlarged view of area C in the middle.

[0033] In the figure: 1. Door frame; 2. First fireproof door panel; 3. Second fireproof door panel; 4. First electric door closer; 5. Second electric door closer; 6. First smoke detector; 7. Second smoke detector; 8. Handle; 11. First channel; 12. Second channel; 13. First infrared sensor; 14. Second infrared sensor; 21. First fireproof sealing strip; 31. Second fireproof sealing strip; 41. Base; 42. Motor; 43. Control module; 44. Backup power supply; 45. Drive shaft; 46. First swing arm; 47. Second swing arm; 48. First connecting seat; 481. First connecting hole; 49. Second connecting seat; 491. Second connecting hole; 410. Power interface; 411. First indicator light; 412. Second indicator light. DETAILED DESCRIPTION

[0034] The embodiment of the present application provides a fire door that can meet the needs of two-way fire evacuation, supports two-way opening and closing, takes into account fire safety and convenience of passage, has two-way escape capabilities, and multi-directional evacuation paths, allowing people to evacuate quickly from two directions, avoiding congestion of a single exit, and is particularly suitable for places with a large number of people. Even if the fire source is on one side of the door, the other side can still be evacuated normally, reducing escape blind spots and improving fire evacuation efficiency. The infrared sensing mechanism realizes anti-pinch, thereby solving the technical problems mentioned in the background technology.

[0035] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0036] Example 1:

[0037] See also Figure 1-10, the present invention provides a technical solution: a fire door that can meet the needs of two-way fire evacuation, including a door frame 1, the door frame 1 includes a first channel 11 and a second channel 12, a first fire door panel 2 is installed at the first channel 11, and a second fire door panel 3 is installed at the second channel 12, the base material of the fire door panel is a cold-rolled steel plate, the surface is rust-proofed, and is filled with inorganic refractory materials such as aluminum silicate fiber wool, rock wool, and perlite to achieve fire retardancy, the first fire door panel 2 is driven by a first electric door closer 4, and the second fire door panel 3 is driven by a second electric door closer 5, the first fire door panel 2 is hinged to the door frame 1, and the second fire door panel 3 is hinged to the door frame 1, the first electric door closer 4 and the second electric door closer 5 both include a base 41, and the base 41 has a built-in motor 42, Control module 43 and backup power supply 44, the output shaft of the motor 42 is fixedly connected to the drive shaft 45, the drive shaft 45 and the output shaft of the motor 42 are connected by a coupling, the drive shaft 45 is fixedly connected to the first swing arm 46, the first swing arm 46 is fixedly sleeved on the drive shaft 45, the first swing arm 46 is rotatably connected to the second swing arm 47, the first swing arm 46 and the second swing arm 47 are rotatably connected by a rotating shaft, one end of the second swing arm 47 is fixedly provided with a first connecting seat 48, the bottom of the base 41 is fixedly provided with a second connecting seat 49, the second connecting seat 49 is fixed on the door frame 1, the first connecting seat 48 of the first electric door closer 4 is fixed on the first fireproof door panel 2, and the first connecting seat 48 of the second electric door closer 5 is fixed on the second fireproof door panel 3.

[0038] like Figure 1 、 Figure 2 and Figure 3 As shown, the first fire door panel 2 can be opened and closed under the drive of the first electric door closer 4, and the second fire door panel 3 can be opened and closed under the drive of the second electric door closer 5. Under normal conditions, the first fire door panel 2 is opened under the drive of the first electric door closer 4, and the second fire door panel 3 is opened under the drive of the second electric door closer 5. The overall fire door is in a normally open state, and the fire door includes two groups of passages, namely the first channel 11 and the second channel 12, which support two-way opening and closing, take into account fire safety and convenience of passage, have two-way escape capabilities, and multi-directional evacuation paths, allowing people to evacuate quickly from two directions to avoid congestion at a single exit. It is especially suitable for places with a large number of people. Even if the fire source is on one side of the door, the other side can still be evacuated normally, reducing escape blind spots and improving fire evacuation efficiency.

[0039] The first electric door closer 4 and the second electric door closer 5 work independently, both support remote control, and can be opened and closed independently. The opening and closing status of the door body is monitored in real time through the Internet of Things platform, and an alarm is triggered in case of abnormality. The opening and closing status of the first fire door panel 2 and the second fire door panel 3 are prioritized for safety.

[0040] During daily traffic periods, the first fire door panel 2 and the second fire door panel 3 remain open to ensure unimpeded flow of personnel. During emergency evacuation, the first fire door panel 2 and the second fire door panel 3 are opened for fire evacuation. During fire drills or maintenance, the first fire door panel 2 and the second fire door panel 3 are temporarily closed. When a fire occurs and the above conditions are not met, the first fire door panel 2 and the second fire door panel 3 are automatically closed under the drive of the first electric door closer 4 and the second electric door closer 5 to cut off the fire and smoke diffusion path.

[0041] like Figure 3 and Figure 4 As shown, when the motor 42 is working, it drives the drive shaft 45 at one end thereof to rotate, the drive shaft 45 drives the first swing arm 46 to move, the first swing arm 46 drives the second swing arm 47 to move, and the second swing arm 47 drives the fire door panel fixed thereto to deflect relative to the door frame 1, thereby realizing the opening and closing of the fire door panel. The opening and closing of the fire door panel is controlled by the number of rotations and the rotation direction of the motor 42.

[0042] The functions of the control module 43 of the first electric door closer 4 and the second electric door closer 5 include signal reception and processing, status feedback and fault diagnosis. The control module 43 receives instructions from the fire alarm system, manual button or intelligent terminal, controls the door closer action, and monitors the position of the fire door panel and the working status of the door closer in real time. The control module 43 is composed of a main control chip, a drive circuit, a communication interface, a power management unit and a backup power supply 44. The main control chip is an embedded processor that is responsible for logical operations and instruction execution and supports multi-protocol communication. The drive circuit is used to control the forward and reverse rotation of the motor 42 to control the fire door panel. The opening and closing speed of the fire door panel is equipped with an overload protection function to ensure the normal operation of the motor 42. The communication interface includes a fire linkage interface and an intelligent interface, which can be connected to the fire alarm system and support docking with the building automatic control system and the Internet of Things platform. It has a dual power supply design and uses the main power supply and the backup power supply 44 together. When the main power supply is accidentally cut off, the backup power supply 44 is used to provide power support to ensure that all components can work normally in an emergency. After the fire alarm, it receives the fire central control signal to keep the fire door panel open for fire evacuation. When the fire expands and there is no personnel to evacuate, the door leaf is automatically closed and the status is fed back.

[0043] In some examples, a first connecting hole 481 is provided on the first connecting seat 48, and the first connecting seat 48 of the first electric door closer 4 is fixedly connected to the first fire door panel 2 by screws, and the first connecting seat 48 of the second electric door closer 5 is fixedly connected to the second fire door panel 3 by screws.

[0044] In some examples, a second connection hole 491 is formed on the second connection seat 49 , and the second connection seat 49 is fixedly connected to the door frame 1 by screws.

[0045] The first electric door closer 4 and the first fireproof door panel 2 are detachably connected, the first electric door closer 4 and the door frame 1 are detachably connected, the second electric door closer 5 and the second fireproof door panel 3 are detachably connected, and the second electric door closer 5 and the door frame 1 are detachably connected. When the first electric door closer 4 or the second electric door closer 5 fails, the first electric door closer 4 or the second electric door closer 5 is conveniently replaced and maintained.

[0046] In some examples, a first smoke detector 6 and a second smoke detector 7 are installed on the door frame 1. The first smoke detector 6 is located in front of the first fire door panel 2, and the second smoke detector 7 is located in front of the second fire door panel 3. There is a light source and a photosensor inside the smoke detector. Under normal circumstances, light directly shines on the sensor. When the smoke concentration is too high, it may directly block the light source, causing a sudden drop in the light intensity received by the photosensor, thereby triggering an alarm. When the fire linkage fails, the electric door closer can be controlled by the smoke detector to close the fire door panel, providing double protection and improving safety.

[0047] In some examples, both the first fireproof door panel 2 and the second fireproof door panel 3 are provided with a handle 8 .

[0048] In some examples, the first electric door closer 4 and the second electric door closer 5 both include a power interface 410 , through which a power line is connected.

[0049] In some examples, the first electric door closer 4 and the second electric door closer 5 both include a first indicator light 411 and a second indicator light 412 . The first electric door closer 4 and the second electric door closer 5 both support self-testing. The first indicator light 411 lights up during normal operation, and the second indicator light 412 lights up during failure.

[0050] By adopting the above technical solutions:

[0051] The fire door includes two sets of passages, namely the first channel 11 and the second channel 12, which support two-way opening and closing, taking into account fire safety and convenience of passage. It has two-way escape capabilities and multi-directional evacuation paths, allowing people to evacuate quickly from two directions to avoid congestion in a single exit. It is especially suitable for places with a large number of people. Even if the fire source is on one side of the door, the other side can still be evacuated normally, reducing escape blind spots and improving fire evacuation efficiency.

[0052] Example 2:

[0053] Based on Example 1, this example introduces a specific structure of the first channel 11 and the second channel 12 in a fire door that can meet the requirements of two-way fire evacuation. A first infrared sensor 13 is provided on the door frame 1 at the first channel 11, and a second infrared sensor 14 is provided on the door frame 1 at the second channel 12.

[0054] In some examples, the first infrared sensor 13 and the second infrared sensor 14 each include an infrared transmitting module and an infrared receiving module.

[0055] When the first fireproof door panel 2 is opened, it will not block the first infrared sensor 13. The infrared transmitting module of the first infrared sensor 13 emits infrared light of a specific wavelength. The infrared receiving module of the first infrared sensor 13 is responsible for receiving reflected or transmitted infrared light. The signal processing unit analyzes the intensity or frequency change of the received signal to determine whether the target exists, the distance or the motion state. When an object enters the sensing area of the first infrared sensor 13, it detects that someone has passed by, and the first fireproof door panel 2 at the first channel 11 will not be closed, thereby achieving anti-pinch. When the first fireproof door panel 2 is driven by the first electric door closer 4 to close the door, it can also immediately stop the closing action and return, thereby achieving anti-pinch and improving safety.

[0056] When the second fireproof door panel 3 is opened, it will not block the second infrared sensor 14. The infrared transmitting module of the second infrared sensor 14 emits infrared light of a specific wavelength. The infrared receiving module of the second infrared sensor 14 is responsible for receiving reflected or transmitted infrared light. The signal processing unit analyzes the intensity or frequency change of the received signal to judge whether the target exists, the distance or the motion state. When an object enters the sensing area of the second infrared sensor 14, it detects that someone has passed by, and the second fireproof door panel 3 at the second channel 12 will not be closed, so as to achieve anti-pinch. When the second fireproof door panel 3 is driven by the second electric door closer 5 to close the door, it can also immediately stop the closing action and return, thereby improving safety.

[0057] By adopting the above technical solutions:

[0058] The first infrared sensor 13 forms an infrared sensing mechanism, forming an infrared sensing area at the first channel 11. The second infrared sensor 14 forms an infrared sensing mechanism, forming an infrared sensing area at the second channel 12. When an object is detected passing through, the fire door panel will not be closed. When the fire door panel is driven by the electric door closer to close the door, it can also immediately stop closing the door and return, thereby preventing pinching and improving safety.

[0059] Example 3:

[0060] Based on Example 1 and Example 2, this example introduces a specific structure of the first fire door panel 2 and the second fire door panel 3 in a fire door that can meet the requirements of two-way fire evacuation. A first fire sealing strip 21 is provided on the inner edge of the first fire door panel 2, and a second fire sealing strip 31 is provided on the inner edge of the second fire door panel 3.

[0061] A fireproof sealing strip is set between the overlapping surfaces of the two fireproof door panels. The fireproof sealing strip can be made of EPDM rubber, which is fireproof and high-temperature resistant. When the first fireproof door panel 2 and the second fireproof door panel 3 are closed, the pressure of the two fireproof door panels is tightly fitted to achieve sealing at the joint, ensuring isolation of fire and smoke in case of fire. The fireproof sealing strip has a certain elasticity and will not affect the normal opening and closing of the two fireproof door panels.

[0062] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A fire door capable of meeting two-way fire evacuation requirements, comprising a door frame (1), characterized in that: The door frame (1) comprises a first channel (11) and a second channel (12); a first fireproof door panel (2) is installed at the first channel (11); a second fireproof door panel (3) is installed at the second channel (12); the first fireproof door panel (2) is driven by a first electric door closer (4); the second fireproof door panel (3) is driven by a second electric door closer (5); the first fireproof door panel (2) is hinged to the door frame (1); the second fireproof door panel (3) is hinged to the door frame (1); the first electric door closer (4) and the second electric door closer (5) both comprise a base (41); the base (41) is equipped with a motor (42) and a control module (43) and a backup power supply (44), the output shaft of the motor (42) is fixedly connected to the drive shaft (45), the drive shaft (45) is fixedly connected to the first swing arm (46), the first swing arm (46) is rotatably connected to the second swing arm (47), one end of the second swing arm (47) is fixedly provided with a first connecting seat (48), the bottom of the base (41) is fixedly provided with a second connecting seat (49), the second connecting seat (49) is fixed on the door frame (1), the first connecting seat (48) of the first electric door closer (4) is fixed on the first fireproof door panel (2), and the first connecting seat (48) of the second electric door closer (5) is fixed on the second fireproof door panel (3).

2. A fire door capable of meeting two-way fire evacuation requirements according to claim 1, characterized in that: A first connecting hole (481) is provided on the first connecting seat (48); the first connecting seat (48) of the first electric door closer (4) and the first fireproof door panel (2) are fixedly connected by screws; and the first connecting seat (48) of the second electric door closer (5) and the second fireproof door panel (3) are fixedly connected by screws.

3. A fire door capable of meeting two-way fire evacuation requirements according to claim 1, characterized in that: A second connection hole (491) is provided on the second connection seat (49), and the second connection seat (49) is fixedly connected to the door frame (1) by screws.

4. A fire door capable of meeting fire-fighting two-way evacuation requirements according to claim 1, characterized in that: A first smoke detector (6) and a second smoke detector (7) are installed on the door frame (1); the first smoke detector (6) is located in front of the first fireproof door panel (2); and the second smoke detector (7) is located in front of the second fireproof door panel (3).

5. The fire door capable of meeting two-way fire evacuation requirements according to claim 1, characterized in that: The first fireproof door panel (2) and the second fireproof door panel (3) are both provided with handles (8).

6. The fire door capable of meeting fire-fighting two-way evacuation requirements according to claim 1, characterized in that: The first electric door closer (4) and the second electric door closer (5) both comprise a power supply interface (410).

7. The fire door capable of meeting fire-fighting two-way evacuation requirements according to claim 1, characterized in that: The first electric door closer (4) and the second electric door closer (5) both comprise a first indicator light (411) and a second indicator light (412).

8. The fire door capable of meeting two-way fire evacuation requirements according to claim 1, characterized in that: A first infrared sensor (13) is provided on the door frame (1) at the first passage (11), and a second infrared sensor (14) is provided on the door frame (1) at the second passage (12).

9. A fire door capable of meeting two-way fire evacuation requirements according to claim 8, characterized in that: The first infrared sensor (13) and the second infrared sensor (14) both comprise an infrared emitting module and an infrared receiving module.

10. The fire door capable of meeting fire-fighting two-way evacuation requirements according to claim 1, characterized in that: A first fireproof sealing strip (21) is provided on the inner side of the first fireproof door panel (2), and a second fireproof sealing strip (31) is provided on the inner side of the second fireproof door panel (3).

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