Safe smoke-proof fireproof door

Abstract

The utility model discloses a safe smoke-proof fireproof door, and belongs to the technical field of fireproof doors. A safe smoke-proof fireproof door comprises a door body and further comprises a door frame, the door frame is located on the outer side of the door body, a heat insulation plate is arranged in the door body, handles are arranged on the two side faces of the door body respectively, hinges are arranged on the side faces of the door frame, a flame-retardant groove is formed in the outer side face of the door frame, and a groove is formed in the inner side face of the door frame. The groove communicates with the flame-retardant groove through a first through hole, and a water tank is arranged on the door frame. In order to solve the problems that the fire-resistant limit time of a fireproof door is short and smoke easily penetrates through the fireproof door, a door body is temporarily closed through flames, water in a water tank can enter smoke-proof cotton through a water pipe, the smoke-proof cotton expands after absorbing water, and then a gap between the door body and a door frame is blocked, so that flowing of the smoke is prevented, and the fireproof door is safe and reliable. Therefore, the escape channel is not damaged by smoke, and further the personnel can escape from the scene under clear sight.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a safe and smokeproof fireproof door. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with certain fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc. They are specially used to isolate fire sources in housing buildings and play a huge role in firefighting work. Once a fire occurs, people can get a chance to escape through fire doors.

[0003] A Chinese patent with publication number CN213597815U discloses a sealed and smoke-proof fire door. By setting up rubber strips with various structures, the flexible rubber strips and airbag rubber strips can be tightly attached to the surface of the door leaf at room temperature to ensure excellent sealing and smoke-proof performance. Under high temperature conditions of fire, the flexible rubber strips and airbag rubber strips expand to block the gap between the door frame and the door leaf, effectively preventing fire from spreading. A fireproof door core panel and a fireproof panel are arranged in the door leaf, and the outermost layer is covered with galvanized steel plate, which has good fire resistance and heat insulation performance.

[0004] In the above patent, when the flame spreads to the front of the fire door, the flame continuously burns the surface of the fire door, the temperature inside the fire door rises, the rubber strip easily melts and falls off, causing smoke to flow behind the fire door. There is a problem that the fire resistance limit time of the fire door is short and smoke easily passes through the fire door; therefore, the existing needs are not met, and a safe smoke-proof fire door is proposed. Utility Model Content

[0005] The utility model aims to provide a safe and smoke-proof fire door, in which a door frame is installed on the outside of a door body, smoke-proof cotton and a water pipe are arranged inside the door frame, a water tank is arranged on the top of the door frame, and the inside of the water pipe is connected with the water tank. When the flame spreads to the front of the door body, the water in the water tank enters the inside of the smoke-proof cotton through the water pipe, and the smoke-proof cotton expands and becomes larger after absorbing water, thereby blocking the gap between the door body and the door frame, thereby preventing the flow of smoke, and can solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe and smoke-proof fire door, comprising a door body and a door frame, wherein the door frame is located on the outside of the door body, a heat insulation board is arranged inside the door body, handles are arranged on both sides of the door body, hinges are arranged on the sides of the door frame, the door body and the door frame are connected by hinges, a flame retardant groove is arranged on the outer side of the door frame, rock wool is arranged inside the flame retardant grooves on the left, right and lower sides, a groove is arranged on the inner side of the door frame, a first through hole is arranged on the side of the groove, the groove is connected to the flame retardant groove through the first through hole, and a water tank is arranged on the top of the door frame.

[0007] Preferably, a connecting plate is provided between the door body and the door frame, the connecting plate is connected to the door body, and a wavy protrusion is provided on the side of the connecting plate.

[0008] Preferably, smoke-proof cotton is arranged inside the groove, the smoke-proof cotton is connected to the door frame, and the side of the smoke-proof cotton is provided with a wavy protrusion, and the side protrusion of the smoke-proof cotton is embedded with the side protrusion of the connecting plate.

[0009] Preferably, a sprinkler head is provided below the water tank, the sprinkler head is located above the door body, and sprinkler heads are provided on both sides of the door body.

[0010] Preferably, a water pipe is provided inside the flame retardant groove, a second through hole is provided on the outer side of the water pipe, the second through hole is connected to the interior of the water pipe, the first through hole is connected to the second through hole, at least four water inlets are extended upward from the water pipe, the upper end of the water inlet is connected to the interior of the water tank, and the interior of the water inlet is connected to the interior of the water pipe.

[0011] Preferably, a valve is provided outside the water inlet, and a mounting plate is provided below the valve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model closes the door body when a fire breaks out. At this time, the side protrusions of the smokeproof cotton are engaged with the side protrusions of the connecting plate. The smokeproof cotton is located in a closed space formed by the connecting plate and the door frame. When the flame spreads to the front of the door body, the water in the water tank enters the interior of the smokeproof cotton through the water pipe. The smokeproof cotton expands after absorbing water. At this time, the wave surface of the smokeproof cotton in contact with the connecting plate is more tightly connected to form a labyrinth seal, thereby blocking the gap between the door body and the door frame, thereby preventing the flow of smoke, making the escape route unaffected by smoke, and ensuring that personnel can escape from the scene with a clear line of sight.

[0014] 2. The utility model is provided with a sprinkler nozzle under the water tank. When the flame spreads to the front of the door body, the flame continuously burns the surface of the door body, and the temperature inside the door body rises. The sprinkler nozzle sprays water mist to both sides of the door body. The water mist forms a water wall, thereby reducing the temperature of the door body surface, slowing down the heating speed of the door body, and helping to maintain the structural stability and integrity of the door body, thereby extending the fire resistance limit of the fire door and buying more precious time for the evacuation of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall front view of the utility model;

[0016] Figure 2 It is a cross-sectional view of the water tank of the utility model;

[0017] Figure 3 For the utility model Figure 2 A magnified view of part A;

[0018] Figure 4 This is a schematic diagram of the partial structure of the door frame of the utility model;

[0019] Figure 5 It is a schematic diagram of the local structure of the water pipe of the utility model.

[0020] In the figure: 1. door body; 101. handle; 102. insulation board; 2. door frame; 201. hinge; 202. groove; 203. first through hole; 204. flame retardant groove; 3. water tank; 301. sprinkler head; 4. smoke-proof cotton; 5. connecting plate; 6. water pipe; 601. water inlet; 602. second through hole; 7. valve; 701. mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] To solve the problem that the fire resistance limit time of fire doors is short and smoke can easily pass through fire doors, please refer to Figure 1-5 , the utility model provides an embodiment: a safe and smoke-proof fire door, comprising a door body 1 and a door frame 2, the door frame 2 is located on the outside of the door body 1, an insulation board 102 is arranged inside the door body 1, handles 101 are arranged on both sides of the door body 1, hinges 201 are arranged on the sides of the door frame 2, the door body 1 and the door frame 2 are connected through the hinges 201, a flame retardant groove 204 is arranged on the outer side of the door frame 2, rock wool is arranged inside the flame retardant groove 204 on the left, right and lower sides, a groove 202 is arranged on the inner side of the door frame 2, a first through hole 203 is arranged on the side of the groove 202, the groove 202 is communicated with the flame retardant groove 204 through the first through hole 203, a water tank 3 is arranged on the top of the door frame 2, a sprinkler head 301 is arranged below the water tank 3, the sprinkler head 301 is located above the door body 1, and sprinkler heads 301 are arranged on both sides of the door body 1.

[0023] When the flame spreads to the front of the door body 1, the flame continuously burns the surface of the door body 1, and the temperature inside the door body 1 rises. The sprinkler head 301 sprays water mist to both sides of the door body 1, and the water mist forms a water wall, thereby reducing the surface temperature of the door body 1, slowing down the heating speed of the door body 1, and helping to maintain the structural stability and integrity of the door body 1, thereby extending the fire resistance limit of the fire door, and further buying more precious time for the evacuation of personnel.

[0024] A connecting plate 5 is arranged between the door body 1 and the door frame 2, the connecting plate 5 is connected to the door body 1, a wavy protrusion is arranged on the side of the connecting plate 5, a smoke-proof cotton 4 is arranged inside the groove 202, the smoke-proof cotton 4 is connected to the door frame 2, a wavy protrusion is arranged on the side of the smoke-proof cotton 4, the side protrusion of the smoke-proof cotton 4 is engaged with the side protrusion of the connecting plate 5, a water pipe 6 is arranged inside the flame-retardant groove 204, a second through hole 602 is arranged on the outer side of the water pipe 6, the second through hole 602 is communicated with the inside of the water pipe 6, the first through hole 203 is communicated with the second through hole 602, at least four water inlets 601 are extended upward from the water pipe 6, the upper end of the water inlet 601 is communicated with the inside of the water tank 3, the inside of the water inlet 601 is communicated with the inside of the water pipe 6, a valve 7 is arranged outside the water inlet 601, and a mounting plate 701 is arranged below the valve 7.

[0025] Close the door body 1. At this time, the side protrusions of the smoke-proof sponge 4 are engaged with the side protrusions of the connecting plate 5. When the flame spreads to the front of the door body 1, the valve 7 is opened, and the water in the water tank 3 enters the interior of the smoke-proof sponge 4 through the water pipe 6. The smoke-proof sponge 4 expands after absorbing water. At this time, the wave surface of the smoke-proof sponge 4 in contact with the connecting plate 5 is more tightly connected, forming a labyrinth seal, thereby blocking the gap between the door body 1 and the door frame 2, thereby preventing the flow of smoke; at the same time, the smoke-proof sponge 4 is located in the closed space formed by the connecting plate 5 and the door frame 2. After the smoke-proof sponge 4 absorbs water, the moisture is difficult to evaporate, which improves the reliability of the smoke-proof sponge 4 in blocking the circulation of smoke, so that the escape route is not harmed by smoke, and further ensures that people can escape from the scene with a clear line of sight.

[0026] Working principle: close the door body 1, at this time, the side protrusions of the smoke-proof sponge 4 are engaged with the side protrusions of the connecting plate 5. When the flame spreads to the front of the door body 1, the water in the water tank 3 enters the interior of the smoke-proof sponge 4 through the water pipe 6. The smoke-proof sponge 4 expands after absorbing water, and then blocks the gap between the door body 1 and the door frame 2, thereby preventing the flow of smoke; at the same time, the sprinkler head 301 sprays water mist to both sides of the door body 1, and the water mist forms a water wall, thereby reducing the surface temperature of the door body 1, slowing down the heating speed of the door body 1, and extending the fire resistance limit of the fire door.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe and smoke-proof fire door, comprising a door body (1), characterized in that: The invention also comprises a door frame (2), wherein the door frame (2) is located on the outside of the door body (1), a heat insulation board (102) is arranged inside the door body (1), handles (101) are arranged on the two side surfaces of the door body (1), hinges (201) are arranged on the side surfaces of the door frame (2), the door body (1) and the door frame (2) are connected via the hinges (201), a flame retardant groove (204) is arranged on the outer side surface of the door frame (2), rock wool is arranged inside the flame retardant grooves (204) on the left, right and lower sides, a groove (202) is arranged on the inner side surface of the door frame (2), a first through hole (203) is arranged on the side surface of the groove (202), the groove (202) is connected to the flame retardant groove (204) via the first through hole (203), and a water tank (3) is arranged on the top of the door frame (2).

2. A safe smoke-proof fire door according to claim 1, characterized in that: A connecting plate (5) is provided between the door body (1) and the door frame (2); the connecting plate (5) is connected to the door body (1); and a wavy protrusion is provided on the side of the connecting plate (5).

3. A safe smoke-proof fire door according to claim 1, characterized in that: The interior of the groove (202) is provided with a smoke-proof sponge (4), which is connected to the door frame (2), and the side of the smoke-proof sponge (4) is provided with a wavy protrusion, and the side protrusion of the smoke-proof sponge (4) is engaged with the side protrusion of the connecting plate (5).

4. A safe smoke-proof fire door according to claim 1, characterized in that: A sprinkler head (301) is arranged below the water tank (3), the sprinkler head (301) is located above the door body (1), and sprinkler heads (301) are arranged on both sides of the door body (1).

5. A safe smoke-proof fire door according to claim 1, characterized in that: A water pipe (6) is arranged inside the flame retardant groove (204), and a second through hole (602) is arranged on the outer side surface of the water pipe (6), the second through hole (602) is connected to the inside of the water pipe (6), the first through hole (203) is connected to the second through hole (602), and the water pipe (6) extends upward to form at least four water inlets (601), the upper ends of the water inlets (601) are connected to the inside of the water tank (3), and the inside of the water inlets (601) is connected to the inside of the water pipe (6).

6. A safe smoke-proof fire door according to claim 5, characterized in that: A valve (7) is arranged outside the water inlet (601), and a mounting plate (701) is arranged below the valve (7).

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