A highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases
The fire door integrates smoke isolation and exhaust mechanisms to address the issue of gas and smoke leakage, ensuring enhanced fireproofing and safety by managing toxic gases during fires.
Patent Information
- Application Number
- CN202011315799.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2040-11-22
AI Technical Summary
Existing fire doors allow harmful smoke and gases to escape through gaps between the door frame and door leaf, compromising fireproof integrity and indoor safety.
A highly flame-retardant steel-wood fire door with integrated smoke isolation plates, transmission components, smoke exhaust pipes, and exhaust ports, controlled by temperature switches, to manage and discharge toxic gases during a fire.
Effectively blocks the flow of harmful gases and smoke, enhancing fireproofing and safety by timely discharge through coordinated smoke exhaust systems.
Smart Images
Figure CN112459681B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of fire doors, and in particular relates to a highly flame-retardant steel-wood fire door with the function of blocking the flow of harmful gases. Background Art
[0002] Fire doors refer to doors that can meet the requirements of fire resistance, integrity and thermal insulation within a certain period of time. They are fireproof partitions with certain fire resistance, such as those installed between fire compartments, evacuation stairwells, vertical shafts, etc. For example, the partition doors of equipment rooms (cylinder rooms, foam stations, etc.) for fixed fire extinguishing devices, ventilation, air conditioning rooms, etc. in high-rise civil buildings should use Class A fire doors; the doors on the partition walls of basement rooms where people often stay or there are many combustibles should use Class A fire doors; due to conditions, it is necessary to arrange oil and gas boilers, combustible oil-immersed power transformers, high-voltage capacitors and switches filled with combustible oil, etc. in high-rise buildings, and the doors on the partition walls of special rooms should all use Class A fire doors. There are also household doors that are designed with special requirements and must be fireproof, such as household doors in fire monitoring and command centers, archives and information rooms, and valuables warehouses, which usually use Class A or Class B fire doors. The household doors of high-rise and high-end residential buildings often use fireproof and anti-theft doors. Fire doors are an important component of fire-fighting equipment and an important part of social fire prevention.
[0003] According to statistics, the main reason for a large number of casualties in a fire is the thick smoke and other toxic gases produced by the fire. However, most existing fire doors are connected by hinges between the door frame and the door leaf. This connection method will cause a connection gap between the door frame and the door leaf. Once a fire occurs, the airflow in these gaps will not only cause the flames to move, affecting the fireproof effect of the fire door, but also harmful smoke will escape through the connection gap of the fire door, which is not conducive to preventing the spread of smoke and dust and affecting the indoor environment, resulting in increased indoor safety hazards. Summary of the invention
[0004] The purpose of the present invention is to provide a highly flame-retardant steel-wood fire door with the function of blocking the flow of harmful gases. Through the coordinated use of smoke isolation plates, transmission components, smoke exhaust pipes and smoke exhaust ports, the problem of the escape of toxic gases such as thick smoke generated during fires, which leads to casualties, is solved.
[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0006] The present invention is a highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases, comprising a fireproof door frame, a fireproof hinge, and a fireproof door body, wherein the fireproof door frame and the fireproof door body are hingedly matched by fireproof hinges, a cavity is opened inside the fireproof door body, a notch connected to the inside of the cavity is opened at the bottom of one side of the fireproof door body, a smoke-isolating plate matched with the notch is hingedly matched with a side of the fireproof door body away from the cavity by a fireproof hinge, a surface of the smoke-isolating plate located in the cavity is rotatably connected with a transmission component, an end of the transmission component away from the smoke-isolating plate is rotatably connected with a support plate fixedly connected to the inner wall of the cavity, and a first temperature control switch and a second temperature control switch are respectively fixedly connected to the inner wall of the cavity;
[0007] The transmission assembly comprises a push rod, one end of the push rod away from the smoke isolation plate is rotatably connected to a sleeve, the inner circumferential surface of the sleeve is threadedly matched with a rotating shaft, and one end of the rotating shaft away from the sleeve is rotatably connected to the support plate;
[0008] The top of the support plate is fixedly connected to a motor and a power supply box, the output shaft of the motor passes through the support plate and is fixedly connected to the rotating shaft, and the top of the support plate is respectively fixedly connected to a power supply box, a first temperature control switch, and a second temperature control switch;
[0009] The inner wall of the cavity is fixedly connected with a smoke exhaust pipe, a side surface of the fire door frame is provided with a smoke exhaust port which penetrates the fire door frame and the fire door body and is connected with the smoke exhaust pipe, and a smoke exhaust fan is provided at one end of the smoke exhaust pipe near the smoke exhaust port.
[0010] Furthermore, one end of the smoke exhaust pipe located above the notch is fixedly connected to a smoke exhaust hood communicated with the smoke exhaust pipe, and the outer circular surface of the smoke exhaust pipe is fixedly connected to the inner wall of the top of the cavity via a suspension rod.
[0011] Furthermore, a fire lock is fixedly connected to a side surface of the fire door body above the notch, and a handle is fixedly connected to a surface of the fire lock.
[0012] Furthermore, the smoke exhaust duct is configured as an "L"-shaped structure.
[0013] Furthermore, the surrounding side surfaces where the fire door body cooperates with the inner wall of the fire door frame and the surrounding side surfaces where the smoke barrier plate cooperates with the notch are both fixedly connected with sealing strips.
[0014] The present invention has the following beneficial effects:
[0015] The present invention uses a smoke barrier, a transmission component, a smoke exhaust pipe and a smoke exhaust port in coordination, and a first temperature control switch is connected between the motor and the power box, and a second temperature control switch is connected between the smoke exhaust fan and the power box. When a fire occurs, the opening of the smoke barrier and the smoke exhaust fan can be controlled by temperature changes, so that thick smoke and other toxic gases generated when the fire occurs can be discharged from the fire site in time through the smoke exhaust port, thereby preventing thick smoke and other toxic gases from escaping and causing casualties.
[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0018] Figure 1 This is a structural schematic diagram of a highly flame-retardant steel-wood fireproof door having the function of blocking the flow of harmful gases according to the present invention;
[0019] Figure 2 for Figure 1 A schematic diagram of the structure from the right rear perspective;
[0020] Figure 3 This is a schematic diagram of the structure inside the main body of the fire door;
[0021] Figure 4 for Figure 3 The structural diagram from the lower left perspective;
[0022] Figure 5 for Figure 4 The structural diagram from the left perspective;
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1-fire door frame, 2-fire hinge, 3-fire door body, 4-cavity, 5-slot, 6-smoke partition, 7-push rod, 8-sleeve, 9-rotating shaft, 10-support plate, 11-motor, 12-power box, 13-first temperature control switch, 14-second temperature control switch, 15-smoke exhaust duct, 16-smoke exhaust port, 17-smoke exhaust fan, 18-smoke exhaust hood, 19-hanging rod, 20-fire lock, 21-handle, 22-sealing strip, 23-transmission assembly. DETAILED DESCRIPTION
[0025] 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.
[0026] See also Figure 1-5 As shown, the present invention is a highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases, comprising a fireproof door frame 1, a fireproof hinge 2, and a fireproof door body 3. The fireproof door frame 1 is hingedly matched with the fireproof door body 3 through the fireproof hinge 2. A cavity 4 is opened inside the fireproof door body 3. A notch 5 connected to the inside of the cavity 4 is opened at the bottom of one side of the fireproof door body 3. A smoke isolation plate 6 that cooperates with the notch 5 is hingedly matched with the fireproof hinge 2 on the side of the fireproof door body 3 away from the cavity 4. A surface of the smoke isolation plate 6 located in the cavity 4 is rotatably connected to a transmission component 23. The end of the transmission component 23 away from the smoke isolation plate is rotatably connected to a support plate 10 fixedly connected to the inner wall of the cavity 4. The inner walls of the cavity 4 are respectively fixedly connected with a first temperature control switch 13 and a second temperature control switch 14.
[0027] The transmission assembly 23 includes a push rod 7, one end of the push rod 7 away from the smoke isolation plate 6 is rotatably connected to a sleeve 8, the inner surface of the sleeve 8 is threaded with a rotating shaft 9, and the end of the rotating shaft 9 away from the sleeve 8 is rotatably connected to a support plate 10;
[0028] The top of the support plate 10 is fixedly connected with a motor 11 and a power supply box 12, the output shaft of the motor 11 passes through the support plate 10 and is fixedly connected with the rotating shaft 9, and the top of the support plate 10 is respectively fixedly connected with the power supply box 12, the first temperature control switch 13 and the second temperature control switch 14;
[0029] A smoke exhaust duct 15 is fixedly connected to the inner wall of the cavity 4, and a smoke exhaust port 16 is opened on one side of the fire door frame 1, which penetrates the fire door frame 1 and the fire door body 3 and is connected to the smoke exhaust duct 15. A smoke exhaust fan 17 is provided at one end of the smoke exhaust duct 15 near the smoke exhaust port 16.
[0030] One end of the smoke exhaust pipe 15 located above the notch 5 is fixedly connected to a smoke exhaust hood 18 communicated with the smoke exhaust pipe 15 , and the outer circumferential surface of the smoke exhaust pipe 15 is fixedly connected to the inner wall of the top of the cavity 4 via a suspension rod 19 .
[0031] A fire lock 20 is fixedly connected to one side of the fire door body 3 above the notch 5 , and a handle 21 is fixedly connected to one surface of the fire lock 20 .
[0032] The smoke exhaust duct 15 is configured as an "L" shaped structure.
[0033] The surrounding side surfaces where the fire door body 3 cooperates with the inner wall of the fire door frame 1 and the surrounding side surfaces where the smoke barrier plate 6 cooperates with the notch 5 are both fixedly connected with sealing strips 22 .
[0034] A specific application of this embodiment is: for example, in residential areas, a door frame hole that matches the fire door frame 1 is pre-set in the wall, and a pipe connected to the smoke exhaust port 16 and the floor oil fume pipe is set in the door frame hole, and then the fire door body 3 is installed; when a fire occurs, the outside temperature will rise, so that the first temperature control switch 13 and the second temperature control switch 14 will be turned on. Since the first temperature control switch 13 and the second temperature control switch 14 are connected to the power box 12, the other end of the first temperature control switch 13 is connected to the motor 11, and the second temperature control switch 1 4 is connected to the smoke exhaust fan 17, the motor 11 rotates to drive the transmission component 23 to start, so that the smoke isolation plate 6 is opened, and the thick smoke and other toxic gases enter the cavity 4. At the same time, the smoke exhaust fan 17 is turned on, and the thick smoke and other toxic gases entering the cavity 4 are discharged into the pipe in the door frame hole through the smoke exhaust pipe 15, and discharged from the oil fume pipe in the floor. When the fire danger is eliminated, the outside temperature will decrease, so that the first temperature control switch 13 and the second temperature control switch 14 will be closed, so that the smoke exhaust fan 17 stops working, and at the same time, the motor 11 will reverse to drive the smoke isolation plate 6 to close.
[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A highly flame-retardant steel-wood fire door with the function of blocking the flow of harmful gases, comprising a fire door frame (1), a fire hinge (2), and a fire door body (3), wherein the fire door frame (1) and the fire door body (3) are hingedly connected through the fire hinge (2), and characterized in that: The fire door body (3) has a cavity (4) formed inside, and a notch (5) communicating with the cavity (4) is formed at the bottom of one side of the fire door body (3). A smoke barrier (6) cooperating with the notch (5) is hingedly connected to the side of the fire door body (3) away from the cavity (4) through a fireproof hinge (2). A surface of the smoke barrier (6) located in the cavity (4) is rotatably connected to a transmission component (23). An end of the transmission component (23) away from the smoke barrier (6) is rotatably connected to a support plate (10) fixedly connected to the inner wall of the cavity (4). A first temperature control switch (13) and a second temperature control switch (14) are respectively fixedly connected to the inner wall of the cavity (4); The transmission assembly (23) comprises a push rod (7), one end of the push rod (7) away from the smoke isolation plate (6) is rotatably connected to a sleeve (8), the inner circumferential surface of the sleeve (8) is threadedly matched with a rotating shaft (9), and the end of the rotating shaft (9) away from the sleeve (8) is rotatably connected to a support plate (10); A motor (11) and a power supply box (12) are fixedly connected to the top of the support plate (10); an output shaft of the motor (11) passes through the support plate (10) and is fixedly connected to the rotating shaft (9); The inner wall of the cavity (4) is fixedly connected to a smoke exhaust duct (15); a side surface of the fire door frame (1) is provided with a smoke exhaust port (16) penetrating the fire door frame (1) and the fire door body (3) and connected to the smoke exhaust duct (15); and a smoke exhaust fan (17) is provided at one end of the smoke exhaust duct (15) near the smoke exhaust port (16); The first temperature control switch (13) and the second temperature control switch (14) are connected to the power supply box (12), the other end of the first temperature control switch (13) is connected to the motor (11), and the second temperature control switch (14) is connected to the smoke exhaust fan (17).
2. A highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases according to claim 1, characterized in that: One end of the smoke exhaust pipe (15) located above the notch (5) is fixedly connected to a smoke exhaust hood (18) that is in communication with the smoke exhaust pipe (15), and the outer circumferential surface of the smoke exhaust pipe (15) is fixedly connected to the inner wall of the top of the cavity (4) via a suspension rod (19).
3. The highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases according to claim 1 is characterized in that: A fire lock (20) is fixedly connected to one side of the fire door body (3) above the notch (5), and a handle (21) is fixedly connected to one surface of the fire lock (20).
4. The highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases according to claim 1 is characterized in that: The smoke exhaust pipe (15) is configured as an "L"-shaped structure.
5. The highly flame-retardant steel-wood fireproof door with the function of blocking the flow of harmful gases according to claim 1 is characterized in that: The surrounding side surfaces where the fire door body (3) cooperates with the inner wall of the fire door frame (1) and the surrounding side surfaces where the smoke barrier plate (6) cooperates with the notch (5) are both fixedly connected with sealing strips (22).