Fireproof and smoke-proof door

Abstract

The utility model discloses a fireproof and smoke-proof door, which relates to the field of fire safety and comprises a door leaf and a door frame. The door frame is provided with a door frame groove, a door frame sealing structure is arranged at the door frame groove, and the door frame sealing structure is used for achieving sealing between the surface of the door leaf and the door frame; the door leaf is provided with a door leaf groove, a door leaf sealing structure is arranged at the door leaf groove, and the door leaf sealing structure is used for achieving sealing between the side face of the door leaf and the door frame and sealing between the top of the door leaf and the door frame. A door bottom groove is formed in the bottom of the door leaf, a door bottom sealing structure is arranged at the position of the door bottom groove, and the door bottom sealing structure is used for achieving sealing between the bottom of the door leaf and the ground or between the bottom of the door leaf and the door frame. The fireproof and smoke-proof door has smoke sealing performance and plays a crucial role in protecting the life safety of escape people in a fire disaster.

Description

Technical Field

[0001] The utility model relates to the field of fire safety, in particular to a fire and smoke prevention door. Background Art

[0002] At present, fire doors generally do not have smoke tightness performance. When a fire breaks out, various combustibles and flame retardants will generate a large amount of toxic and harmful smoke during combustion, which spreads rapidly in the space and spreads to escape passages, corridors, stairwells and other parts through fire doors, thus causing harm to the people in the refuge room and those escaping, and even leading to suffocation and death. According to statistics, the number of people who die of asphyxiation due to toxic smoke far exceeds the number of people directly injured by the fire. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fire and smoke prevention door with smoke tightness performance, which plays a crucial role in protecting the lives and safety of people in the refuge room and those escaping during a fire.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides a fire and smoke prevention door, comprising: a door leaf and a door frame; a door frame groove is arranged on the door frame, and a door frame sealing structure is arranged at the door frame groove for realizing the seal between the surface of the door leaf and the door frame; a door leaf groove is arranged on the door leaf, and a door leaf sealing structure is arranged at the door leaf groove for realizing the seals between the side surface and the top of the door leaf and the door frame respectively; a door bottom groove is arranged at the bottom of the door leaf, and a door bottom sealing structure is arranged at the door bottom groove for realizing the seal between the bottom of the door leaf and the ground or the door frame.

[0006] Preferably, the door frame sealing structure comprises a first door frame sealing component and a second door frame sealing component, and the first door frame sealing component is connected with the second door frame sealing component;

[0007] The first door frame sealing component is located in the door frame groove and is made of a high-temperature expansion sealing material. The first door frame sealing component comprises a first sealing body and a plurality of first sealing burrs symmetrically arranged on the first sealing body. A first cavity is arranged in the first sealing body, and the first sealing burrs are in contact with the door frame groove;

[0008] The second doorframe sealing assembly is located between the surface of the doorframe and the door leaf. The second doorframe sealing assembly is made of an elastic sealing material. The second doorframe sealing assembly includes a second sealing body and two second sealing burrs symmetrically arranged on the second sealing body. A second cavity is provided in the second sealing body. One end of the second sealing body contacts the doorframe, and the other end of the second sealing body is for contacting the surface of the door leaf. One of the second sealing burrs is for contacting the surface of the door leaf, and the other second sealing burr can be located between the upper part of the door leaf and the doorframe or between the side of the door leaf and the doorframe.

[0009] Preferably, the door leaf sealing structure includes a first door leaf sealing assembly and a plurality of second door leaf sealing assemblies;

[0010] The first door leaf sealing assembly is strip-shaped and is made of a high-temperature expansion sealing material. One side of the first door leaf sealing assembly is located in the door leaf groove;

[0011] A plurality of the second door leaf sealing assemblies are arranged on the other side of the first door leaf sealing assembly. The second door leaf sealing assemblies are burr-shaped and are made of a high-temperature expansion sealing material. One end of the second door leaf sealing assembly is connected to the first door leaf sealing assembly, and the other end of the second door leaf sealing assembly is for contacting the doorframe.

[0012] Preferably, the door bottom sealing structure is made of silica gel. A third cavity is provided in the door bottom sealing structure. The lower end of the door bottom sealing structure is for contacting the ground or the doorframe.

[0013] Preferably, a telescopic structure is provided in the door bottom groove, and the telescopic structure is for driving the movement of the door bottom sealing structure.

[0014] Preferably, the door leaf includes a door leaf outer shell made of a metal material, and a core board made of a refractory material is provided inside the door leaf outer shell.

[0015] Preferably, the doorframe is integrally bent from a metal material.

[0016] Preferably, a fireproof glass structure is provided on the door leaf. The fireproof glass structure is fixed on the door leaf by a pressing strip, and a fireproof glass sealing structure is provided between the pressing strip and the fireproof glass structure and between the fireproof glass structure and the door leaf.

[0017] Preferably, the fireproof glass structure includes a fireproof glass outer shell made of fireproof glass, and a fireproof liquid is filled inside the fireproof glass outer shell.

[0018] Preferably, the fireproof glass sealing structure is strip-shaped and made of an elastic sealing material.

[0019] The present utility model has achieved the following technical effects compared with the prior art:

[0020] The fireproof and smoke-proof door of the present utility model can play a role in smoke tightness while meeting the specified fire resistance performance of ordinary fire doors, and can block and slow down the spread speed of poisonous and harmful smoke in case of a fire. The smoke tightness performance of the fireproof and smoke-proof door of the present utility model is designed and manufactured systematically, and the door frame sealing structure, the door leaf sealing structure, and the door bottom sealing structure work together. The door frame sealing structure, the door leaf sealing structure, and the door bottom sealing structure are both independent and coordinated. When one of the door frame sealing structure, the door leaf sealing structure, and the door bottom sealing structure fails, other sealing structures can still work, thus having higher reliability and safety. At the same time, considering the airtight requirements in the daily use state and the use requirements in the fire state, the contradiction between different functional systems is solved, and the practicability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is the front view of the fireproof and smoke-proof door of the present utility model;

[0023] Figure 2 It is Figure 1 the A-A cross-sectional view of;

[0024] Figure 3 It is the cross-sectional view of the door frame of the present utility model;

[0025] Figure 4 It is the schematic diagram of the door frame sealing structure of the present utility model;

[0026] Figure 5 It is the cross-sectional view of the door body of the present utility model;

[0027] Figure 6 It is the schematic diagram of the door body sealing structure of the present utility model;

[0028] Figure 7 It is the schematic diagram of the door bottom sealing structure of the present utility model;

[0029] Figure 8 It is the schematic diagram of the door bottom sealing structure of the present utility model not contacting the ground;

[0030] Figure 9 Schematic diagram of the contact between the bottom seal structure of the present utility model and the ground;

[0031] Figure 10 is Figure 1 B-B cross-sectional view of

[0032] Figure 11 is Figure 1 C-C cross-sectional view of

[0033] In the figure: 1 - door leaf, 2 - door frame, 3 - door frame groove, 4 - door frame seal structure, 5 - door leaf groove, 6 - door leaf seal structure, 7 - bottom door groove, 8 - bottom door seal structure, 9 - first seal body, 10 - first seal burr, 11 - first cavity, 12 - second seal body, 13 - second seal burr, 14 - second cavity, 15 - first door leaf seal assembly, 16 - second door leaf seal assembly, 17 - third cavity, 18 - handle, 19 - hinge, 20 - door leaf housing, 21 - fireproof glass structure, 22 - pressing strip, 23 - fireproof glass seal structure. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0035] The purpose of the present utility model is to provide a fire and smoke prevention door, which has smoke tightness performance and plays a crucial role in protecting the lives of people escaping during a fire.

[0036] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Such as Figures 1 to 11As shown in the figure, this embodiment provides a fire and smoke-proof door, including: a door leaf 1 and a door frame 2. The door leaf 1 and the door frame 2 are hinged by a hinge 19, and a handle 18 is provided on the door leaf 1; the door frame 2 is provided with a door frame groove 3, and a door frame sealing structure 4 is provided at the door frame groove 3. The door frame sealing structure 4 is used to achieve the seal between the surface of the door leaf 1 and the door frame 2; the door leaf 1 is provided with a door leaf groove 5, and a door leaf sealing structure 6 is provided at the door leaf groove 5. The door leaf sealing structure 6 is used to achieve the seals between the side surface and the top of the door leaf 1 and the door frame 2 respectively; the bottom of the door leaf 1 is provided with a door bottom groove 7, and a door bottom sealing structure 8 is provided at the door bottom groove 7. The door bottom sealing structure 8 is used to achieve the seal between the bottom of the door leaf 1 and the ground or the door frame 2.

[0038] Specifically, in this embodiment, the door leaf 1 includes a door leaf outer shell 20 made of a metal material. A core board made of a refractory material is arranged inside the door leaf outer shell 20. The core board is made of magnesium oxide, perlite powder, curing agent and fiberglass cloth by a filling and pressing method. The door leaf 1 is preferably made of cold-rolled galvanized steel sheet, and the refractory material filled inside the door leaf outer shell 20 meets the fire protection performance requirements. After the galvanized steel sheet undergoes a series of processing such as punching, bending and welding, a door leaf groove 5 is formed at the joint between the door frame 2 and the door leaf 1, and the door leaf sealing structure 6 is embedded in the door leaf groove 5, so that the door frame 2 and the door leaf 1 are tightly combined.

[0039] In this embodiment, the door frame 2 is integrally bent from a metal material. The door frame 2 is preferably made of cold-rolled galvanized steel sheet. After undergoing a series of processing such as punching, bending and welding, a door frame groove 3 is formed at the joint between the door frame 2 and the door leaf 1, and the door frame sealing structure 4 is arranged at the door frame groove 3, so that the door frame 2 and the door leaf 1 are tightly combined; in this embodiment, the lap area between the door frame 2 and the door leaf 1 is increased through the door frame groove 3 ( Figure 11 where L is the lap dimension between the door frame 2 and the door leaf 1), a complete and reliable contact surface is formed, and the door frame sealing structure 4 is compressed by the door leaf 1 to make it play a sealing role. The door frame sealing structure 4 and the door leaf sealing structure 6 act simultaneously, so that the smoke sealing function of the fire and smoke-proof door is more reliable and safe.

[0040] In this embodiment, the doorframe sealing structure 4 includes a first doorframe sealing component and a second doorframe sealing component, and the first doorframe sealing component is connected to the second doorframe sealing component; the first doorframe sealing component is located in the doorframe groove 3 and is made of a high-temperature expansion sealing material, and the high-temperature expansion sealing material is preferably expanded graphite. The first doorframe sealing component includes a first sealing body 9 and a number of first sealing burrs 10 symmetrically arranged on the first sealing body 9. The first sealing body 9 and the number of first sealing burrs 10 are integrally formed. A first cavity 11 is provided in the first sealing body 9, and the first sealing burrs 10 are in contact with the doorframe groove 3; the second doorframe sealing component is located between the surfaces of the doorframe 2 and the door leaf 1 and is made of an elastic sealing material, and the elastic sealing material is preferably PVC. The second doorframe sealing component includes a second sealing body 12 and two second sealing burrs 13 symmetrically arranged on the second sealing body 12. The second sealing body 12 and the number of second sealing burrs 13 are integrally formed. A second cavity 14 is provided in the second sealing body 12. One end of the second sealing body 12 is in contact with the doorframe 2, and the other end of the second sealing body 12 is for contacting the surface of the door leaf 1. One second sealing burr 13 is for contacting the surface of the door leaf 1, and the other second sealing burr 13 can be located between the upper part of the door leaf 1 and the doorframe 2 or between the side surface of the door leaf 1 and the doorframe 2. The doorframe sealing structure 4 is made by combining a high-temperature expansion sealing material and an elastic sealing material, and has both a fire-resistant function and a smoke-tight function. Under normal conditions and at a semi-high temperature of smoke (generally set at 200°C), the second doorframe sealing component made of an elastic sealing material plays a good airtight function, so that dust, smoke, etc. are isolated on both sides of the fire door. In a fire state, the first doorframe sealing component made of a high-temperature expansion sealing material will expand when heated, further blocking and sealing the gap between the doorframe 2 and the door leaf 1. The doorframe sealing structure 4 adopts a large cross-sectional dimension design. The part embedded in the doorframe groove 3 is the first doorframe sealing component made of a hard high-temperature expansion sealing material. Through a number of first sealing burrs 10, the bonding force with the doorframe groove 3 can be effectively increased, preventing the first doorframe sealing component from falling off from the doorframe groove 3. The part where the doorframe 2 and the door leaf 1 are in contact is the second doorframe sealing component made of a soft elastic sealing material, which can withstand the environmental conditions at a semi-high temperature (generally set at 200°C) without damage, and can be further compressed under the action of the self-weight of the door leaf 1, making the combination of the doorframe 2 and the door leaf 1 tighter.

[0041] In this embodiment, the door leaf sealing structure 6 includes a first door leaf sealing component 15 and several second door leaf sealing components 16; the first door leaf sealing component 15 is strip-shaped, made of a high-temperature expansion sealing material, and the high-temperature expansion sealing material is preferably expanded graphite. One side of the first door leaf sealing component 15 is located in the door leaf groove 5 and is fixed in the door leaf groove 5 by physical principle; several second door leaf sealing components 16 are arranged on the other side of the first door leaf sealing component 15. The second door leaf sealing component 16 is burr-shaped and made of an elastic sealing material, and the elastic sealing material is preferably PVC. One end of the second door leaf sealing component 16 is connected to the first door leaf sealing component 15, and the other end of the second door leaf sealing component 16 is used to contact the door frame 2. The door leaf sealing structure 6 is made by combining a high-temperature expansion sealing material and an elastic sealing material, and has both fire resistance and smoke tightness functions. Under normal conditions and at semi-high temperature of smoke (generally set at 200°C), the second door leaf sealing component 16 made of elastic sealing material plays a good sealing function, so as to isolate dust, smoke, etc. on both sides of the fire and smoke prevention door. In the event of a fire, the first door leaf sealing component 15 made of high-temperature expansion sealing material will expand when heated, further blocking and sealing the gap between the door frame 2 and the door leaf 1. The door leaf sealing structure 6 adopts a burr-shaped cross-section structure design. The part embedded in the door leaf groove 5 is the first door leaf sealing component 15 made of hard high-temperature expansion sealing material, and is fixed by extrusion stuffing and clamping to prevent the first door leaf sealing component 15 from falling off from the door leaf groove 5. The part in contact with the door frame 2 is the second door leaf sealing component 16 made of soft burr-shaped elastic sealing material, which can withstand the environmental conditions at semi-high temperature (generally set at 200°C) without damage, and is compressed when the door leaf 1 is closed, making the combination of the door frame 2 and the door leaf 1 closer.

[0042] In this embodiment, a telescopic structure is arranged in the door bottom groove 7, and the telescopic structure is used to drive the movement of the door bottom sealing structure 8; the door bottom sealing structure 8 is made of silica gel, a third cavity 17 is arranged in the door bottom sealing structure 8, and the lower end of the door bottom sealing structure 8 is used to contact the ground or the door frame 2. The gap between the lower part of the door leaf 1 and the ground or the door frame 2 is sealed by the door bottom sealing structure 8. The door bottom sealing structure 8 functions when the door leaf 1 is closed. In the open state of the door leaf 1, the door bottom sealing structure 8 retracts into the door bottom groove 7 to make the opening and closing of the door leaf 1 smooth. When the door leaf 1 is closed, the telescopic structure drives the door bottom sealing structure 8 to sink downward so as to protrude from the bottom surface of the door leaf 1 and further contact the ground or the door frame 2, thereby effectively sealing the gap between the bottom surface of the door leaf 1 and the ground or the door frame 2. The door bottom sealing structure 8 can withstand the environmental conditions at semi-high temperature (generally set at 200°C) without damage.

[0043] In this embodiment, a fireproof glass structure 21 is provided on the door leaf 1. The fireproof glass structure 21 is fixed on the door leaf 1 through a press strip 22. A fireproof glass sealing structure 23 is provided between the press strip 22 and the fireproof glass structure 21, and between the fireproof glass structure 21 and the door leaf 1. The fireproof glass sealing structure 23 is strip-shaped and made of an elastic sealing material. The elastic sealing material is preferably PVC.

[0044] In this embodiment, the fireproof glass structure 21 includes a fireproof glass outer shell made of fireproof glass. The fireproof glass outer shell is used to fill with fireproof liquid, preferably crystal silicon fireproof glue.

[0045] The fireproof and smoke-proof door of this embodiment can play a role in smoke tightness while meeting the specified fire resistance performance of an ordinary fire door, and can play a role in blocking and slowing down the spread speed of poisonous smoke in case of a fire. The smoke tightness performance of the fireproof and smoke-proof door of this embodiment is designed and manufactured systematically. The door frame sealing structure 4, the door leaf sealing structure 6, the door bottom sealing structure 8 and the fireproof glass sealing structure 23 work together. The door frame sealing structure 4, the door leaf sealing structure 6, the door bottom sealing structure 8 and the fireproof glass sealing structure 23 are both independent and coordinated. When one of the door frame sealing structure 4, the door leaf sealing structure 6, the door bottom sealing structure 8 and the fireproof glass sealing structure 23 fails, other sealing structures still work, thus having higher reliability and safety. At the same time, taking into account the airtight requirements in the daily use state and the use requirements in the fire state, it solves the contradiction between different functional systems and has stronger practicability.

[0046] In this utility model, specific examples are used to expound the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. To sum up, the content of this specification should not be construed as a limitation to the utility model.

Claims

1. A fire and smoke proof door, characterized by: include: A door leaf and a door frame; the door frame is provided with a door frame groove, a door frame sealing structure is provided at the door frame groove, and the door frame sealing structure is used to achieve sealing between the surface of the door leaf and the door frame; the door leaf is provided with a door leaf groove, a door leaf sealing structure is provided at the door leaf groove, and the door leaf sealing structure is used to achieve sealing between the side of the door leaf and the top of the door leaf and the door frame respectively; the bottom of the door leaf is provided with a door bottom groove, a door bottom sealing structure is provided at the door bottom groove, and the door bottom sealing structure is used to achieve sealing between the bottom of the door leaf and the ground or the door frame.

2. The fire and smoke proof door according to claim 1, characterized in that: The door frame sealing structure includes a first door frame sealing component and a second door frame sealing component, wherein the first door frame sealing component is connected to the second door frame sealing component; The first door frame sealing assembly is located in the door frame groove, the first door frame sealing assembly is made of a high-temperature expansion sealing material, and the first door frame sealing assembly includes a first sealing body and a plurality of first sealing burrs symmetrically arranged on the first sealing body, a first cavity is provided in the first sealing body, and the first sealing burrs are in contact with the door frame groove; The second door frame sealing assembly is located between the door frame and the surface of the door leaf, the second door frame sealing assembly is made of elastic sealing material, the second door frame sealing assembly includes a second sealing body and two second sealing burrs symmetrically arranged on the second sealing body, a second cavity is provided in the second sealing body, one end of the second sealing body contacts the door frame, and the other end of the second sealing body is used to contact the surface of the door leaf, one second sealing burr is used to contact the surface of the door leaf, and the other second sealing burr can be located between the upper part of the door leaf and the door frame or between the side of the door leaf and the door frame.

3. The fire and smoke proof door according to claim 1, characterized in that: The door leaf sealing structure includes a first door leaf sealing assembly and a plurality of second door leaf sealing assemblies; The first door leaf sealing assembly is in a strip shape and is made of a high-temperature expansion sealing material. One side of the first door leaf sealing assembly is located in the door leaf groove. Several second door leaf sealing components are arranged on the other side of the first door leaf sealing component. The second door leaf sealing components are burr-shaped. The second door leaf sealing components are made of elastic sealing material. One end of the second door leaf sealing component is connected to the first door leaf sealing component, and the other end of the second door leaf sealing component is used to contact the door frame.

4. The fire and smoke proof door according to claim 1, characterized in that: The door bottom sealing structure is made of silica gel, a third cavity is provided in the door bottom sealing structure, and the lower end of the door bottom sealing structure is used to contact the ground or the door frame.

5. The fire and smoke proof door according to claim 1, characterized in that: A telescopic structure is provided in the door bottom groove, and the telescopic structure is used to drive the door bottom sealing structure to move.

6. The fire and smoke proof door according to claim 1, characterized in that: The door leaf comprises a door leaf outer shell, which is made of metal material. A core plate made of refractory material is arranged inside the door leaf outer shell.

7. The fire and smoke proof door according to claim 1, characterized in that: The door frame is made of metal material by integrally bending.

8. The fire and smoke proof door according to claim 1, characterized in that: A fireproof glass structure is provided on the door leaf, and the fireproof glass structure is fixed to the door leaf through a pressure strip. Fireproof glass sealing structures are provided between the pressure strip and the fireproof glass structure, and between the fireproof glass structure and the door leaf.

9. The fire and smoke proof door according to claim 8, characterized in that: The fireproof glass structure comprises a fireproof glass shell, which is made of fireproof glass and is filled with fireproof liquid.

10. The fire and smoke proof door according to claim 8, characterized in that: The fireproof glass sealing structure is in a strip shape and is made of elastic sealing material.

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