CN213928120U - Steel fireproof door - Google Patents
Steel fireproof door Download PDFInfo
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- CN213928120U CN213928120U CN202021940068.5U CN202021940068U CN213928120U CN 213928120 U CN213928120 U CN 213928120U CN 202021940068 U CN202021940068 U CN 202021940068U CN 213928120 U CN213928120 U CN 213928120U
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Abstract
The embodiment of the utility model provides a steel fireproof door, which comprises a fireproof door frame, a fireproof door leaf and a smoke blocking device for blocking toxic gas; the inner side of the fireproof door frame is movably connected with the fireproof door leaf through a hinge; the side wall of the periphery of the fireproof door leaf is provided with a groove for accommodating a smoke-blocking air bag, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf, and the fire facing surface of the fireproof door leaf is opposite to the back fire surface of the fireproof door leaf; the low-density core plate and the high-density core plate are the same in thickness, and the connecting parts are mutually cast and fused into a whole. When a fire disaster happens, the temperature sensor senses the temperature, the air pump works, air is filled in the smoke-resistant air bag, the smoke-resistant air bag protrudes outwards to fill the gap between the fireproof door leaf and the fireproof door frame, and toxic gas cannot enter a room, so that the safety of personnel is guaranteed.
Description
Technical Field
The utility model relates to a prevent fire door technical field, especially relate to a fire door is prevented to steel.
Background
A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation within a certain period of time. The fireproof door is arranged at a fireproof partition with certain fire resistance, such as a fireproof interval, an evacuation staircase, a vertical shaft, a power distribution machine room and the like. The fireproof door not only has the function of a common door, but also has the functions of preventing the fire from spreading and the smoke from diffusing, the fire is prevented from spreading within a certain time, and the rescue and evacuation time of people is prolonged.
Among the prior art scheme, when taking place the condition of a fire, prevent fire door can prevent stretching of intensity of a fire in a certain time, nevertheless prevent that fire door's shell can take place to warp under high temperature, prevent forming the gap between fire door and the door frame, toxic gas such as dense smoke stretches to the door through the gap in, causes the injury to safe region's personnel, increases the hidden danger.
SUMMERY OF THE UTILITY MODEL
In view of the above, embodiments of the present invention are provided to provide a fire door made of steel that overcomes or at least partially solves the above-mentioned problems.
In order to solve the problem, the embodiment of the utility model discloses a fire door is prevented to steel includes: the fire door comprises a fire door frame, a fire door leaf and a smoke blocking device for blocking toxic gas;
the inner side of the fireproof door frame is movably connected with the fireproof door leaf through a hinge;
the side wall of the periphery of the fireproof door leaf is provided with a groove for accommodating a smoke-blocking air bag, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf, the fireproof door core consists of a low-density core plate close to the back fire surface of the fireproof door leaf and a high-density core plate close to the fire surface of the fireproof door leaf, and the fire surface of the fireproof door leaf is opposite to the back fire surface of the fireproof door leaf; the low-density core plate and the high-density core plate have the same thickness and are mutually cast and fused into a whole at the connecting parts;
the smoke-resistant device comprises a smoke-resistant air bag which forms a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf, an air pump for inflating the smoke-resistant air bag and a constant pressure valve; the smoke-blocking air bag is an elastic film fixedly connected to the opening of the groove, and is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged at the lower part of the back fire surface of the fireproof door leaf; the constant pressure valve is arranged on the inner side wall of the groove and communicated with the outside air, and the temperature sensor is arranged on the fire-facing surface of the fireproof door leaf and penetrates through the fireproof door leaf to be electrically connected with the air pump.
Preferably, the constant pressure valve comprises a piston cavity communicated with the groove, a piston head arranged in the piston cavity in a sliding manner, and an exhaust pipe communicated with the outside; the bottom of the piston head is connected with the piston cavity through a spring, and the exhaust pipe is arranged on two sides of the bottom of the piston cavity.
Preferably, the fire-facing surface of the fireproof door leaf is provided with a cooling layer, and the cooling layer is made of an inorganic heat-absorbing material.
Preferably, the fireproof door core is provided with at least one honeycomb-shaped round hole, and fireproof materials are filled in the round hole.
Preferably, the outer surface of the fireproof door leaf is uniformly coated with a flame-retardant paint layer.
Preferably, the middle part of the back fire surface of the fireproof door leaf is provided with a handle.
Preferably, the inner side wall of the fireproof door frame is provided with a fireproof expansion sealing element.
Preferably, the panel of the fireproof door leaf is a cold-rolled hot-dip galvanized steel plate.
Preferably, the fireproof door leaf is provided with a locking device, and the locking device comprises a fireproof bolt arranged above the back fire surface of the fireproof door leaf and a fireproof lock arranged in the middle of the fire surface of the fireproof door leaf.
The method specifically comprises the following advantages:
in the embodiment of the application, the fireproof door leaf is movably connected with the inner side of the fireproof door frame through the hinge; the side wall of the periphery of the fireproof door leaf is provided with a groove for accommodating a smoke-blocking air bag, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf, the fireproof door core consists of a low-density core plate close to the back fire surface of the fireproof door leaf and a high-density core plate close to the fire surface of the fireproof door leaf, and the fire surface of the fireproof door leaf is opposite to the back fire surface of the fireproof door leaf; the low-density core plate and the high-density core plate have the same thickness and are mutually cast and fused into a whole at the connecting parts; the smoke-resistant device comprises a smoke-resistant air bag which forms a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf, an air pump for inflating the smoke-resistant air bag and a constant pressure valve; the smoke-blocking air bag is an elastic film fixedly connected to the opening of the groove, and is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged at the lower part of the back fire surface of the fireproof door leaf; the constant pressure valve is arranged on the inner side wall of the groove and communicated with the outside air, and the temperature sensor is arranged on the fire-facing surface of the fireproof door leaf and penetrates through the fireproof door leaf to be electrically connected with the air pump. When a fire disaster happens, the temperature sensor senses the temperature, the air pump works, air is filled in the smoke-resistant air bag, the smoke-resistant air bag protrudes outwards to fill the gap between the fireproof door leaf and the fireproof door frame, and toxic gas cannot enter a room, so that the safety of personnel is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Figure 1 is a schematic diagram of a steel fire rated door according to one embodiment of the present application;
figure 2 is a cross-sectional view of a steel fire rated door as provided by an embodiment of the present application;
figure 3 is a schematic structural diagram of a constant pressure valve for a steel fireproof door according to an embodiment of the present application.
1. A fireproof door frame; 2. a fireproof door leaf; 3. a smoke-blocking device; 31. a smoke-blocking air bag; 32. a constant pressure valve.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 3, there are shown schematic structural views of an embodiment of a steel fireproof door of the present invention, which may specifically include a fireproof door frame 1, a fireproof door leaf 2, and a smoke barrier 3 for blocking toxic gases; the inner side of the fireproof door frame 1 is movably connected with the fireproof door leaf 2 through a hinge.
The peripheral side wall of the fireproof door leaf 2 is provided with a groove for accommodating the smoke-blocking air bag 31, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf 2, the fireproof door core is composed of a low-density core board close to the back fire surface of the fireproof door leaf 2 and a high-density core board close to the fire facing surface of the fireproof door leaf 2, and the fire facing surface of the fireproof door leaf 2 is opposite to the back fire surface of the fireproof door leaf 2; the low-density core plate and the high-density core plate have the same thickness and are mutually cast and fused into a whole at the connecting parts;
the smoke-resistant device 3 comprises a smoke-resistant air bag 31 forming a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf 2, an air pump for inflating the smoke-resistant air bag 31 and a constant pressure valve 32; the smoke-blocking air bag 31 is an elastic film fixedly connected to the opening of the groove, and the smoke-blocking air bag 31 is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged at the lower part of the back fire surface of the fireproof door leaf 2; the constant pressure valve 32 is arranged on the inner side wall of the groove and communicated with the outside air, and the temperature sensor is arranged on the fire-facing surface of the fireproof door leaf 2 and penetrates through the fireproof door leaf 2 to be electrically connected with the air pump.
In the embodiment of the application, the fireproof door leaf 2 is movably connected with the inner side of the fireproof door frame 1 through a hinge; the peripheral side wall of the fireproof door leaf 2 is provided with a groove for accommodating the smoke-blocking air bag 31, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf 2, the fireproof door core is composed of a low-density core board close to the back fire surface of the fireproof door leaf 2 and a high-density core board close to the fire facing surface of the fireproof door leaf 2, and the fire facing surface of the fireproof door leaf 2 is opposite to the back fire surface of the fireproof door leaf 2; the low-density core plate and the high-density core plate are the same in thickness, and the connecting parts are mutually cast and fused into a whole.
The smoke-resistant device 3 comprises a smoke-resistant air bag 31 forming a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf 2, an air pump for inflating the smoke-resistant air bag 31 and a constant pressure valve 32; the smoke-blocking air bag 31 is an elastic film fixedly connected to the opening of the groove, and the smoke-blocking air bag 31 is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged on the lower part of the back fire surface of the fireproof door leaf 2.
The constant pressure valve 32 is arranged on the inner side wall of the groove and communicated with the outside air, and the temperature sensor is arranged on the fire-facing surface of the fireproof door leaf 2 and penetrates through the fireproof door leaf 2 to be electrically connected with the air pump. When a fire disaster happens, the temperature is sensed through the temperature sensor, the air pump works, air is filled in the smoke-resistant air bag 31, the smoke-resistant air bag 31 protrudes outwards, the gap between the fireproof door leaf 2 and the fireproof door frame 1 is filled, and toxic gas cannot enter a room, so that the safety of personnel is guaranteed.
Next, a steel fire door in the present exemplary embodiment will be further described.
Referring to fig. 1, a schematic structural diagram of a steel fireproof door provided in an embodiment of the present application is shown, specifically, the structure is as follows, hinge swing joint is passed through to fireproof door frame 1 inboard fireproof door leaf 2, specifically, the hinge is also called the hinge for connect the object, make the object do the mechanical device of relative rotation, one side of fireproof door frame 1 with one side of fireproof door leaf 2 is passed through hinge connection, makes fireproof door leaf 2 follow fireproof door frame 1 one side is rotated.
In the embodiment of this application, the inside wall of fire prevention door frame 1 is equipped with fire prevention inflation sealing member, specifically, fire prevention inflation sealing member encircles 1 inboard a week of fire prevention door frame. When a fire disaster happens, the fireproof expansion sealing element is heated and expanded, and gas generated by the fire disaster is separated at the gap between the fireproof door frame 1 and the fireproof door leaf 2, so that toxic gas is prevented from entering a room.
The fireproof door leaf 2 is provided with a groove for accommodating the smoke-blocking air bag 31 on the peripheral side wall, the groove is an annular groove with an opening at the top end, and specifically, the groove is an inward sunken annular groove.
Refer to fig. 2, the cross-sectional structure schematic diagram that shows a fire door is prevented to steel that this application embodiment provided, specific following structure, 2 inside fire door leaves that are equipped with of fire door leaf, the fire door core is by being close to the low density core of 2 back of the body fire faces of fire door leaves and being close to 2 high density core two parts of meeting the fire face of fire door leaves constitute, the low density core with the same and the connection position of high density core plate thickness waters each other and fuses integratively, wherein, the fire door core is equipped with at least one cellular round hole, the round hole intussuseption is filled with fire prevention material.
The fire-resistant door leaf 2 is characterized in that the fire-resistant surface of the fire-resistant door leaf 2 is opposite to the fire-resistant surface of the fire-resistant door leaf 2, the outer surface of the fire-resistant door leaf 2 is uniformly coated with a flame-retardant paint layer, the panel of the fire-resistant door leaf 2 is a cold-rolled hot-dip galvanized steel plate, specifically, the panel of the fire-resistant door leaf 2 is a 0.8 mm cold-rolled hot-dip galvanized steel plate, the cold-rolled hot-dip is a manufacturing process, and the zinc plate is a steel plate with a zinc-plated surface.
In the embodiment of this application, fire door leaf 2 is equipped with locking device, locking device is including setting up the fire prevention bolt and the setting of 2 back of the body fire faces of fire door leaf top are in the fire prevention lock at 2 front of the body fire faces middle parts of fire door leaf, specifically, the fire prevention lock is 1000 millimeters apart from 2 bottoms of fire door leaf. And a handle is arranged in the middle of the back fire surface of the fireproof door leaf 2.
In this application embodiment, fire door leaf 2 is provided with the cooling layer to the face of a fire, the cooling layer is for being used for giving the inorganic heat absorbing material of fire door leaf 2 cooling, specifically, inorganic heat absorbing material is for can absorbing heat and can release the inorganic material of vapor when being heated.
The smoke-resistant device 3 comprises a smoke-resistant air bag 31 forming a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf 2, an air pump for inflating the smoke-resistant air bag 31 and a constant pressure valve 32; the smoke-blocking air bag 31 is an elastic film, wherein the smoke-blocking air bag 31 sequentially comprises an aluminum foil heat-insulating layer, a cotton heat-insulating layer and a nylon layer coated with sealing rubber from outside to inside.
The smoke-resistant air bag 31 is fixedly connected to the opening of the groove, and the smoke-resistant air bag 31 is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged on the lower portion of the back fire surface of the fireproof door leaf 2, wherein air flow enters the one-way valve along a one-way direction and cannot flow back, the one-way valve is commonly called a one-way valve, and the one-way valve is also called a check valve or a check valve. For preventing reverse flow in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems.
Referring to fig. 3, a schematic structural diagram of a constant pressure valve for a steel fireproof door provided in an embodiment of the present application is shown, specifically, in a structure that the constant pressure valve 32 is disposed on an inner side wall of the groove and is communicated with outside air, where the constant pressure valve 32 includes a piston cavity communicated with the groove, a piston head slidably disposed in the piston cavity, and an exhaust pipe communicated with outside; the bottom of the piston head is connected with the piston cavity through a spring, and the exhaust pipe is arranged on two sides of the bottom of the piston cavity.
The temperature sensor is arranged on the fire-facing surface of the fireproof door leaf 2 and penetrates through the fireproof door leaf 2 to be electrically connected with the air pump, wherein the temperature sensor is a sensor capable of sensing temperature and converting the temperature into a usable output signal. The temperature sensor is the core part of a temperature measuring instrument, can be divided into a contact type and a non-contact type according to a measuring mode, is divided into a thermal resistor and a thermocouple according to the characteristics of a sensor material and an electronic element, and adopts the non-contact type thermal resistor.
In a specific embodiment, the width of the fire door is 900 mm, the height thereof is 2100 mm, the width of the fire door leaf 2 is 833 mm, and the height thereof is 2040 mm; when a fire disaster happens, the temperature sensor senses the temperature, so that the air pump is started, the air pump inflates air into the groove, the smoke-resistant air bag 31 swells, and the constant pressure valve 32 moves through the piston to enable the air pressure in a sealed cavity formed by the smoke-resistant air bag 31 and the groove to be constant; the fire prevention inflation sealing member of fire prevention door frame 1 is heated the inflation, with hinder the laminating of cigarette gasbag 31, form between fire prevention door frame 1 and fire prevention door leaf 2 and hinder the cigarette protective screen, when fire prevention door leaf 2 is heated and takes place to warp, hinder cigarette gasbag 31 and can take place to deform and keep the separation gas along with fire prevention door leaf 2, avoided toxic gas such as dense smoke to pass through the gap entering room, cause the injury to safe region's people.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required in order to implement the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The steel fireproof door provided by the utility model is introduced in detail, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the explanation of the above example is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. A steel fire door is characterized by comprising a fire door frame, a fire door leaf and a smoke blocking device for blocking toxic gas;
the inner side of the fireproof door frame is movably connected with the fireproof door leaf through a hinge;
the side wall of the periphery of the fireproof door leaf is provided with a groove for accommodating a smoke-blocking air bag, and the groove is an annular groove with an opening at the top end; a fireproof door core is arranged inside the fireproof door leaf, the fireproof door core consists of a low-density core plate close to the back fire surface of the fireproof door leaf and a high-density core plate close to the fire surface of the fireproof door leaf, and the fire surface of the fireproof door leaf is opposite to the back fire surface of the fireproof door leaf; the low-density core plate and the high-density core plate have the same thickness and are mutually cast and fused into a whole at the connecting parts;
the smoke-resistant device comprises a smoke-resistant air bag which forms a sealed cavity with the groove, a temperature sensor for detecting the temperature of the fire-facing surface of the fireproof door leaf, an air pump for inflating the smoke-resistant air bag and a constant pressure valve; the smoke-blocking air bag is an elastic film fixedly connected to the opening of the groove, and is flush with the top end of the groove; the air pump is communicated with the bottom of the groove through a one-way valve and is arranged at the lower part of the back fire surface of the fireproof door leaf; the constant pressure valve is arranged on the inner side wall of the groove and communicated with the outside air, and the temperature sensor is arranged on the fire-facing surface of the fireproof door leaf and penetrates through the fireproof door leaf to be electrically connected with the air pump.
2. The steel fire door of claim 1, wherein the constant pressure valve comprises a piston chamber in communication with the groove, a piston head slidably disposed within the piston chamber, and an exhaust tube in communication with the exterior; the bottom of the piston head is connected with the piston cavity through a spring, and the exhaust pipe is arranged on two sides of the bottom of the piston cavity.
3. The fire resistant steel door as recited in claim 1, wherein said fire door leaf has a cooling layer on a fire side, said cooling layer being comprised of an inorganic heat absorbing material.
4. The fire steel door of claim 1, wherein said fire door core is provided with at least one cellular round hole, said round hole being filled with a fire-resistant material.
5. The fire steel door as recited in claim 1, wherein said outer surface of said fire door leaf is uniformly coated with a layer of fire retardant paint.
6. The fire resistant steel door as recited in claim 1, wherein said fire door leaf has a handle disposed in a central portion of a back fire surface.
7. The fire steel door as recited in claim 1, wherein said inner side wall of said fire rated door frame is provided with a fire rated intumescent seal.
8. The fire resistant steel door as recited in claim 1, wherein said panel of said fire door leaf is cold rolled galvanized steel.
9. The fire steel door as claimed in any one of claims 1 to 8, wherein said fire door leaf is provided with a locking means comprising a fire bolt disposed above a fire side of said fire door leaf and a fire lock disposed in the middle of a fire side of said fire door leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940068.5U CN213928120U (en) | 2020-09-07 | 2020-09-07 | Steel fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940068.5U CN213928120U (en) | 2020-09-07 | 2020-09-07 | Steel fireproof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213928120U true CN213928120U (en) | 2021-08-10 |
Family
ID=77160549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021940068.5U Active CN213928120U (en) | 2020-09-07 | 2020-09-07 | Steel fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213928120U (en) |
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2020
- 2020-09-07 CN CN202021940068.5U patent/CN213928120U/en active Active
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