Fireproof door with smoke prevention and heat insulation effects

Abstract

The utility model discloses a fireproof door with smoke prevention and heat insulation effects, and relates to the technical field of fireproof doors. Comprising a door frame assembly and a door body hinged to the outer wall of the other side of the door frame assembly, a lifting groove is formed in the outer wall of the bottom of the other side of the door body, and the outer wall of one side of the lifting groove is slidably connected with a lifting assembly used for automatically sealing a gap in the bottom of the door body; the outer walls of the two sides of the door body are fixedly connected with heat conduction assemblies used for driving the lifting assemblies to ascend and descend. When a fire disaster happens, the temperature outside the door body is transmitted to the interior of the main pipe through the heat conduction plate and the heat conduction rod, air in the main pipe is heated, the air expands with heat and contracts with cold, and due to the fact that a sealed space is formed between the top of the main pipe and the lifting plate, expanded air after heating can drive the lifting plate to descend. And the baffle plate is driven to descend through the lifting rod and the connecting rod, so that the baffle plate is in contact with the ground, and a gap between the bottom of the door body and the ground is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a fireproof door with smoke-proof and heat-insulating effects. Background Art

[0002] A fire door is a door that can meet the requirements of fire resistance, stability, integrity and thermal insulation within a certain period of time. It is specifically used to isolate fire sources in building construction and plays a huge role in firefighting.

[0003] The fire door sealing structure with patent publication number CN219711394U can close the door by pressing the handle downward, driving the square rod to rotate clockwise, causing the fixed block to swing around the axis of the square rod, driving the lifting rod 1 to move in the groove cavity of groove 1, and synchronously driving the support plate to move in the groove cavity of groove 2, so that the door can be moved to the door frame and locked by moving the door. When the handle is reset, it drives the square rod to rotate counterclockwise, causing the fixed block to synchronously drive the lifting rod 1 to move in the groove cavity of groove 1, and then drive the support plate installed on the top of the outer steel plate to move toward the top door frame of the fire door, and the support plate installed on the bottom of the outer steel plate to move toward the ground, thereby increasing the sealing effect of the fire door and preventing the circulation of ash.

[0004] During the use of the above-mentioned equipment, manual pressure is required to seal the gaps at the top and bottom of the fire door. In the actual use of the fire door, since the fire doors currently used are basically normally closed, the fire doors can be closed automatically. People will not subconsciously press the fire doors manually when passing through the fire doors. In addition, in order not to affect the normal opening and closing of the common normally closed fire doors, there is a certain gap between the bottom and the ground. When a fire occurs, the smoke generated will be poured into the room through the gap at the bottom of the fire door, thereby affecting the smoke and heat insulation effects of the fire door. Utility Model Content

[0005] The purpose of the utility model is to provide a fireproof door with smoke and heat insulation effects to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof door with smoke and heat insulation effect, comprising a door frame assembly and a door body hinged to the outer wall on the other side of the door frame assembly, a lifting groove is opened on the outer wall at the bottom of the other side of the door body, and a lifting assembly for automatically closing the gap at the bottom of the door body is slidably connected to the outer wall on one side of the lifting groove, a heat-conducting assembly for driving the lifting assembly to rise and fall is fixedly connected to the outer walls on both sides of the door body, and a limit assembly for improving the lifting stability of the lifting assembly is arranged on the outer wall on one side of the door body;

[0007] The lifting assembly includes a shielding plate, and the shielding plate contacts an outer wall on one side of the lifting slot, and the outer wall on the other side of the shielding plate is fixedly connected to a plurality of connecting rods, and the top outer walls of the connecting rods are all fixedly connected to the lifting rods.

[0008] Furthermore, the heat-conducting assembly includes a heat-conducting plate, and the heat-conducting plate is fixedly connected to the outer wall on one side of the top of the door body, and the outer wall on the other side of the door body is fixedly connected to a plurality of main pipes, and the outer wall on the other side of the heat-conducting plate is fixedly connected to a plurality of heat-conducting rods inserted into the inner wall of the circumference of the main pipes, and the main pipes are all hollow structures, and are sealed and filled with air.

[0009] Furthermore, the bottom circumferential inner wall of the main pipe is fixedly connected with a fixing ring, and the lifting rod is slidably inserted between the top of the fixing ring and the bottom outer wall, the top outer wall of the lifting rod is fixedly connected with a lifting plate, and the lifting plate and the main pipe are in sealed contact.

[0010] Furthermore, the limiting assembly includes a plurality of vertical rods and a plurality of clamping rings, and the clamping rings and the vertical rods are respectively fixedly connected to the outer wall of the door body and the other side of the shielding plate, and the vertical rods are respectively inserted between the inner walls around the clamping rings.

[0011] Furthermore, the door frame assembly includes a door frame body and a shielding strip, and the shielding strip is fixedly connected between two ends of one side of the door frame body and the top inner wall.

[0012] Furthermore, the bottom outer walls of the shielding plate are fixedly connected with rubber strips, and glass windows are fixedly connected between the top outer walls on both sides of the door body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The fireproof door with smoke-proof and heat-insulating effects has a heat-conducting plate and a heat-conducting rod made of copper. In the event of a fire, the temperature outside the door body is transferred to the inside of the main pipe through the heat-conducting plate and the heat-conducting rod, and the air in the main pipe is heated. The air expands when heated and contracts when cooled. Since there is a sealed space between the top of the main pipe and the lifting plate, the expanded gas after heating will drive the lifting plate to descend, and drive the baffle plate to descend through the lifting rod and the connecting rod, so that the baffle plate contacts the ground and closes the gap between the bottom of the door body and the ground, thereby achieving the effect of automatically closing the gap at the bottom of the door body when a fire occurs.

[0015] At the same time, after the fire is extinguished, as the heat transfer plate and the heat transfer rod gradually cool down, the air in the main pipe also gradually cools down to room temperature. The cooled air will expand and contract due to heat, suck the lifting plate up again, and drive the baffle plate up, so that the gap at the bottom of the door body is reopened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the rubber strip structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the bottom of the main pipe of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the main pipe top of the utility model.

[0021] In the figure: 1. Door frame assembly; 101. Door frame body; 102. Shielding strip; 2. Door body; 3. Glass window; 4. Heat conduction assembly; 401. Heat conduction plate; 402. Main pipe; 403. Heat conduction rod; 5. Limit assembly; 501. Vertical rod; 502. Clamp; 6. Lifting assembly; 601. Connecting rod; 602. Lifting rod; 603. Lifting plate; 604. Fixing ring; 7. Rubber strip. DETAILED DESCRIPTION

[0022] 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.

[0023] When there is a threshold between the bottom of the fire door and the ground, the air circulation is poor during the normal use of the fire door, which is not conducive to the cleanliness of the indoor environment. When it is necessary to pull goods through the fire door, the threshold of the fire door is easily squeezed, and the deformed threshold cannot be completely sealed with the fire door, resulting in smoke entering the fire door when a fire occurs. When there is no threshold between the bottom of the fire door and the ground, smoke will also enter the fire door through the door gap when a fire occurs.

[0024] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a fireproof door with smoke and heat insulation effects, comprising a door frame assembly 1 and a door body 2 hinged to the outer wall on the other side of the door frame assembly 1, a lifting groove is opened on the bottom outer wall of the other side of the door body 2, and a lifting assembly 6 for automatically closing the gap at the bottom of the door body 2 is slidably connected to the outer wall on one side of the lifting groove, and a heat conduction assembly 4 for driving the lifting assembly 6 to lift is fixedly connected to the outer walls on both sides of the door body 2, and a limiting assembly 5 for improving the lifting stability of the lifting assembly 6 is arranged on the outer wall on one side of the door body 2; the lifting assembly 6 comprises a baffle plate, and the baffle plate contacts the outer wall on one side of the lifting groove, and a plurality of connecting rods 601 are fixedly connected to the outer wall on the other side of the baffle plate, and the top outer wall of the connecting rod 601 The walls are fixedly connected with lifting rods 602, the heat-conducting component 4 includes a heat-conducting plate 401, and the heat-conducting plate 401 is fixedly connected to the outer wall on one side of the top of the door body 2, the outer wall on the other side of the door body 2 is fixedly connected with multiple main pipes 402, and the outer wall on the other side of the heat-conducting plate 401 is fixedly connected with multiple heat-conducting rods 403 inserted into the circumferential inner wall of the main pipe 402, the main pipes 402 are all hollow structures, and the main pipes 402 are sealed and filled with air, the bottom circumferential inner wall of the main pipe 402 is fixedly connected with a fixing ring 604, and the lifting rod 602 is slidably inserted between the top and bottom outer walls of the fixing ring 604, the top outer wall of the lifting rod 602 is fixedly connected with a lifting plate 603, and the lifting plate 603 and the main pipe 402 are in sealed contact.

[0025] It should be noted that the heat conducting plate 401 and the heat conducting rod 403 are both made of copper and have strong thermal conductivity, while the door body 2 is made of fire-resistant material and has high fire resistance. In the event of a fire, the temperature outside the door body 2 is transmitted to the inside of the main pipe 402 through the heat conducting plate 401 and the heat conducting rod 403. Since the inside of the main pipe 402 is in a sealed state, when the air in the main pipe 402 is heated, the air expands and contracts, which will drive the lifting plate 603 to descend, and drive the baffle to descend through the lifting rod 602 and the connecting rod 601, so that the baffle contacts the ground, and automatically closes the gap between the bottom of the door body 2 and the ground. When the heat conducting plate 401 and the heat conducting rod 403 cool down and cool the air in the main pipe 402, the cooled air will suck the lifting plate 603 up again, and drive the baffle to rise, so that the gap at the bottom of the door body 2 is reopened.

[0026] like Figure 2 The limiting assembly 5 includes a plurality of vertical rods 501 and a plurality of clamping rings 502 , and the clamping rings 502 and the vertical rods 501 are respectively fixedly connected to the door body 2 and the outer wall of the other side of the shielding plate, and the vertical rods 501 are respectively inserted between the inner walls around the clamping rings 502 .

[0027] It should be noted that when the shielding plate is raised or lowered, the vertical rod 501 inserted into the clamp ring 502 will improve the stability of the shielding plate when it is raised or lowered.

[0028] like Figure 1 and Figure 3 The door frame assembly 1 includes a door frame body 101 and a shielding strip 102, and the shielding strip 102 is fixedly connected between the two ends of one side of the door frame body 101 and the top inner wall; the bottom outer wall of the shielding plate is fixedly connected with a rubber strip 7, and a glass window 3 is fixedly connected between the outer walls on both sides of the top of the door body 2.

[0029] It should be noted that when the door body 2 is closed, the door body 2 will fit with the shielding strip 102, thereby preventing smoke from flowing through the gap between the door body 2 and the door frame body 101. When the shielding plate is raised or lowered, the rubber strip 7 will contact the ground, thereby improving the sealing effect between the shielding plate and the ground.

[0030] Working principle: When a fire occurs, since the door body 2 fits the shielding strip 102, smoke cannot flow through the gap between the door body 2 and the door frame body 101. The temperature outside the door body 2 is transmitted to the inside of the main pipe 402 through the heat conducting plate 401 and the heat conducting rod 403. Since the inside of the main pipe 402 is in a sealed state, when the air in the main pipe 402 is heated, the air expands and contracts, which will drive the lifting plate 603 to descend, and drive the shielding plate to descend through the lifting rod 602 and the connecting rod 601, so that the shielding plate contacts the ground, and the gap between the bottom of the door body 2 and the ground is automatically closed. When the shielding plate is raised or lowered, the rubber strip 7 contacts the ground, thereby improving the sealing effect between the shielding plate and the ground. When the heat conducting plate 401 and the heat conducting rod 403 cool down and cool the air in the main pipe 402, the cooled air will suck up the lifting plate 603 again, and drive the shielding plate to rise, so that the gap at the bottom of the door body 2 is reopened.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A fireproof door with smokeproof and heat-insulating effects, comprising a door frame assembly (1) and a door body (2) hinged to the outer wall of the other side of the door frame assembly (1), characterized in that: The bottom outer wall of the other side of the door body (2) is provided with a lifting groove, and the outer wall of one side of the lifting groove is slidably connected to a lifting component (6) for automatically closing the gap at the bottom of the door body (2), the outer walls of both sides of the door body (2) are fixedly connected to heat-conducting components (4) for driving the lifting component (6) to move up and down, and the outer wall of one side of the door body (2) is provided with a limit component (5) for improving the lifting stability of the lifting component (6); The lifting assembly (6) comprises a shielding plate, and the shielding plate contacts an outer wall of one side of the lifting slot, and the outer wall of the other side of the shielding plate is fixedly connected to a plurality of connecting rods (601), and the top outer walls of the connecting rods (601) are all fixedly connected to lifting rods (602).

2. The fireproof door with smoke and heat insulation effect according to claim 1, characterized in that: The heat-conducting component (4) comprises a heat-conducting plate (401), and the heat-conducting plate (401) is fixedly connected to the outer wall on one side of the top of the door body (2), and the outer wall on the other side of the door body (2) is fixedly connected to a plurality of main pipes (402), and the outer wall on the other side of the heat-conducting plate (401) is fixedly connected to a plurality of heat-conducting rods (403) inserted into the circumferential inner wall of the main pipe (402), and the main pipes (402) are all hollow structures, and the main pipes (402) are all sealed and filled with air.

3. The fireproof door with smoke and heat insulation effect according to claim 2 is characterized in that: The bottom circumferential inner wall of the main pipe (402) is fixedly connected to a fixing ring (604), and the lifting rod (602) is slidably inserted between the top and bottom outer wall of the fixing ring (604), and the top outer wall of the lifting rod (602) is fixedly connected to a lifting plate (603), and the lifting plate (603) and the main pipe (402) are in sealed contact.

4. The fireproof door with smoke and heat insulation effect according to claim 1, characterized in that: The limiting assembly (5) comprises a plurality of vertical rods (501) and a plurality of clamping rings (502), wherein the clamping rings (502) and the vertical rods (501) are respectively fixedly connected to the door body (2) and the outer wall of the other side of the shielding plate, and the vertical rods (501) are respectively inserted between the inner walls around the clamping rings (502).

5. The fireproof door with smoke and heat insulation effect according to claim 1, characterized in that: The door frame assembly (1) comprises a door frame body (101) and a shielding strip (102), and the shielding strip (102) is fixedly connected between two ends of one side of the door frame body (101) and the top inner wall.

6. The fireproof door with smoke and heat insulation effect according to claim 1, characterized in that: The bottom outer wall of the shielding plate is fixedly connected with a rubber strip (7), and the top outer walls of the door body (2) are fixedly connected with a glass window (3).

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