Fireproof door core board with good flame retardance

Abstract

The utility model provides a fireproof door core plate with good flame retardance, and belongs to the technical field of fireproof doors. The fireproof door core plate with the good flame retardance comprises a framework, a fire stopping assembly is fixedly installed at the bottom of the framework, glass fiber gridding cloth is fixedly installed on the two sides of the framework, a fireproof plate block is fixedly installed on the inner side of the framework, the fire stopping assembly comprises an installation plate, and side plates are fixedly installed on the two sides of the installation plate; the bottom of the mounting plate is provided with a fireproof plate, the two sides of the bottom end of the fireproof plate are fixedly provided with three trigger clamping blocks, the bottom of the side plate is provided with three clamping grooves, the clamping grooves are connected with the trigger clamping blocks in a clamping mode, the trigger clamping blocks are made of polyvinyl chloride materials, and the top of the fireproof plate is fixedly provided with three ejection springs. And the gap between the bottom of the door leaf and the ground can be blocked when a fire disaster occurs, high-temperature air and flames are prevented from entering a room to ignite combustible materials, and high practical value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a fireproof door core board with good flame retardancy. Background Art

[0002] A fire door is a specially designed door that can meet the requirements of fire resistance stability, integrity and thermal insulation for a certain period of time. This means that in the event of a fire, the fire door can keep its structure from being burned by fire, prevent the fire and smoke from spreading to the other side through the door gap, and buy precious time for people to escape and fire prevention and rescue work. Fire doors are usually installed between fire partitions in buildings and on the paths leading to safe exits. They are an important part of building fire safety. According to different fire resistance limits, fire doors are divided into multiple grades to meet the fire protection needs of different places. The core board of the fire door is the key material used inside the fire door to increase its fire resistance.

[0003] For example, a Chinese patent with publication number CN219492121U discloses a fireproof door core board, including a core board body, the upper and lower side walls of the core board body are fixedly connected with glass fiber mesh cloth, the upper and lower side walls of the core board body are opened with a plurality of placement grooves, the inner walls of the placement grooves are fixedly connected with rubber pads, and the placement grooves are filled with dry powder fire extinguishing agent;

[0004] The technical solution recorded in this scheme can spray out the dry powder fire extinguishing agent in the core panel of the fire door after the flame has baked the core panel of the fire door for a long time, and use the dry powder fire extinguishing agent to slow down the surrounding fire or extinguish the flame. However, in actual use, the dry powder fire extinguishing agent can only play a fire extinguishing effect when it is put on the fire source. At the actual fire scene, it is usually the flames and high-temperature air that drift into the room from the gap at the bottom of the door leaf and ignite the combustibles. The dry powder fire extinguishing agent stored in the core panel has a relatively limited effect and is not convenient to use.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a fire door core panel with good flame retardancy is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0006] In order to solve the above technical problems, the embodiment of the utility model provides a fireproof door core board with good flame retardancy, which is specifically achieved through the following technical solutions:

[0007] A fireproof door core board with good flame retardancy, including a skeleton. A fire blocking component is fixedly installed at the bottom of the skeleton. Fiberglass mesh cloth is fixedly installed on both sides of the skeleton, and fireproof plates are fixedly installed inside the skeleton. The fire blocking component includes a mounting plate. Side plates are fixedly installed on both sides of the mounting plate. A fire blocking plate is arranged at the bottom of the mounting plate. Three trigger blocks are fixedly installed at both bottom ends of the fire blocking plate. Three card slots are opened at the bottom of the side plate. The card slots are in snap connection with the trigger blocks. The trigger blocks are made of polyvinyl chloride material. Three ejecting springs are fixedly installed at the top of the fire blocking plate. The top of the ejecting springs is fixedly connected with the mounting plate.

[0008] The beneficial effect of adopting the above further scheme is that, by fixedly installing fiberglass mesh cloth on both sides of the skeleton and fixedly installing fireproof plates inside the skeleton, it is convenient for the skeleton to provide support for the device, so that the device can maintain its original shape even during long-term use or under certain external forces. The fireproof plates improve the fireproof and sound insulation performance of the device, and the fiberglass mesh cloth further improves the fireproof performance of the device. Through the snap connection between the card slots and the trigger blocks, it is convenient to fixedly install the fire blocking plate at the bottom of the mounting plate. Since the trigger blocks are made of polyvinyl chloride material and the softening temperature of polyvinyl chloride is 78 degrees, and the temperature during normal use will not exceed 78 degrees, the trigger blocks have the function of fixing the fire blocking plate at the bottom of the mounting plate. When a fire occurs, the high temperature melts the trigger blocks and can release the snap connection with the card slots. By fixedly installing three ejecting springs at the top of the fire blocking plate and the top of the ejecting springs being fixedly connected with the mounting plate, it is convenient to eject the fire blocking plate downward when the trigger blocks are disengaged from the card slots, blocking the gap between the bottom of the door leaf and the ground, and preventing high-temperature air and flames from entering the room and igniting combustibles.

[0009] Further, the trigger blocks are in an inverted triangular structure, and the trigger blocks are arranged directly below the ejecting springs.

[0010] The beneficial effect of adopting the above further scheme is that, by the trigger blocks being in an inverted triangular structure and the trigger blocks being arranged directly below the ejecting springs, it is convenient for the trigger blocks to stably fix the fire blocking plate at the bottom of the mounting plate during normal use, and when a fire occurs and the trigger blocks are softened by high temperature, the ejecting springs can quickly eject the fire blocking plate downward.

[0011] Further, three spring cavities are opened at the bottom end of the mounting plate, and the ejecting springs are arranged inside the spring cavities.

[0012] The beneficial effect of adopting the above further scheme is that, by arranging the ejecting springs inside the spring cavities, it is convenient for the spring cavities to provide space for the installation of the ejecting springs.

[0013] Further, the inside of the mounting plate is filled with filling blocks, and the filling blocks are made of perlite material.

[0014] The beneficial effect of adopting the above further solution is that by filling the inside of the mounting plate with filling blocks made of perlite material, it is convenient to endow the mounting plate with flame retardant and heat insulation properties.

[0015] Furthermore, the material of the fire baffle is a flame retardant modified rubber plate.

[0016] The beneficial effect of adopting the above further solution is that by using a flame retardant modified rubber plate as the material of the fire baffle, it is convenient to endow the fire baffle itself with fire prevention and flame retardant properties, and it has a certain elasticity, which can closely fit the ground when the fire baffle is ejected, thus effectively preventing flames and high-temperature air from entering the interior of the room.

[0017] Furthermore, the framework is an aluminum alloy framework with a hollow structure inside.

[0018] The beneficial effect of adopting the above further solution is that by using an aluminum alloy framework with a hollow structure inside, the aluminum alloy material itself has the characteristics of light weight and high strength, and the hollow structure is beneficial to reducing heat transfer and improving heat insulation performance.

[0019] Furthermore, the bottom end of the fiberglass mesh extends downward to both sides of the fire baffle assembly, and the fiberglass mesh is fixedly connected to the fire baffle assembly.

[0020] The beneficial effect of adopting the above further solution is that by extending the bottom end of the fiberglass mesh downward to both sides of the fire baffle assembly and fixedly connecting the fiberglass mesh to the fire baffle assembly, it is convenient to enhance the stability of the device and is beneficial to improving the fire resistance of the device.

[0021] Furthermore, the fireproof plate includes a sound insulation layer, and the material of the sound insulation layer is fiberglass wool.

[0022] The beneficial effect of adopting the above further solution is that by using fiberglass wool as the material of the sound insulation layer, it is convenient to endow the device with a certain sound insulation performance.

[0023] Furthermore, fireproof layers are fixedly installed on both sides of the sound insulation layer, and the material of the fireproof layer is a magnesium oxychloride fireproof board.

[0024] The beneficial effect of adopting the above further solution is that by using a magnesium oxychloride fireproof board as the material of the fireproof layer, the magnesium oxychloride fireproof board has the characteristics of high temperature resistance, flame retardancy and sound absorption, and high strength, which is beneficial to improving the service life of the device.

[0025] The beneficial effects of the present utility model are as follows: A fireproof door core board with good flame retardancy obtained through the above design. For this kind of fireproof door core board with good flame retardancy, fiberglass mesh cloth is fixedly installed on both sides of the skeleton, and fireproof plates are fixedly installed inside the skeleton, which is convenient for the skeleton to provide support for the device, enabling the device to maintain its original shape even during long-term use or under certain external forces. The fireproof plates improve the fireproof and sound insulation performance of the device, and the fiberglass mesh cloth further improves the fireproof performance of the device. The fireproof plate is fixedly installed at the bottom of the mounting plate through the snap connection between the card slot and the trigger block. Since the trigger block is made of polyvinyl chloride material and the softening temperature of polyvinyl chloride is 78 degrees, and the temperature during normal use does not exceed 78 degrees, the trigger block has the function of fixing the fireproof plate at the bottom of the mounting plate. When a fire occurs, the high temperature causes the trigger block to melt and releases the snap connection with the card slot. There are three ejector springs fixedly installed at the top of the fireproof plate, and the top of the ejector springs is fixedly connected to the mounting plate, which is convenient for ejecting the fireproof plate downward when the trigger block releases the snap connection with the card slot, blocking the gap between the bottom of the door leaf and the ground, and preventing high-temperature air and flames from entering the room and igniting combustibles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Schematic three-dimensional structure diagram of a fireproof door core board with good flame retardancy provided by the present utility model;

[0028] Figure 2 Exploded view of a fireproof door core board with good flame retardancy provided by the present utility model;

[0029] Figure 3 Exploded view of the fireproof component provided by the present utility model;

[0030] Figure 4 Provided by the present utility model Figure 3 Enlarged view of structure A in

[0031] Figure 5 Sectional view of the fireproof plate provided by the present utility model.

[0032] In the figure: 101, the framework; 102, the fiberglass mesh cloth; 103, the fire-blocking component; 10301, the mounting plate; 10302, the side plate; 10303, the fire-blocking plate; 10304, the ejecting spring; 10305, the triggering block; 10306, the card slot; 10307, the spring cavity; 10308, the filling block; 104, the fireproof plate block; 10401, the sound insulation layer; 10402, the fireproof layer. Detailed implementation mode

[0033] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Embodiment 1 of a fireproof door core board with good flame retardancy of the present utility model

[0036] The present utility model provides the following technical solutions: As Figures 1 - 5As shown in the figure, a fireproof door core board with good flame retardancy includes a skeleton 101. A fire blocking component 103 is fixedly installed at the bottom of the skeleton 101. Fiberglass mesh cloths 102 are fixedly installed on both sides of the skeleton 101, and fireproof plates 104 are fixedly installed inside the skeleton 101. By fixedly installing fiberglass mesh cloths 102 on both sides of the skeleton 101 and fixedly installing fireproof plates 104 inside the skeleton 101, it is convenient for the skeleton 101 to provide support for the device, so that the device can maintain its original shape during long-term use or under certain external forces. The fireproof plates 104 improve the fireproof and sound insulation performance of the device, and the fiberglass mesh cloths 102 further improve the fireproof performance of the device. The fire blocking component 103 includes a mounting plate 10301. Side plates 10302 are fixedly installed on both sides of the mounting plate 10301. A fire blocking plate 10303 is provided at the bottom of the mounting plate 10301. Three trigger blocks 10305 are fixedly installed on both sides of the bottom end of the fire blocking plate 10303. Three card slots 10306 are opened at the bottom of the side plate 10302. The card slots 10306 are in snap connection with the trigger blocks 10305. By the snap connection between the card slots 10306 and the trigger blocks 10305, it is convenient to fixedly install the fire blocking plate 10303 at the bottom of the mounting plate 10301. The material of the trigger block 10305 is polyvinyl chloride material. Since the softening temperature of polyvinyl chloride is 78 degrees and the temperature during normal use does not exceed 78 degrees, the trigger block 10305 has the function of fixing the fire blocking plate 10303 at the bottom of the mounting plate 10301. When a fire occurs, the high temperature melts the trigger block 10305 and can release the snap connection with the card slot 10306. Three ejecting springs 10304 are fixedly installed at the top of the fire blocking plate 10303, and the top of the ejecting springs 10304 is fixedly connected to the mounting plate 10301. By fixedly installing three ejecting springs 10304 at the top of the fire blocking plate 10303 and the top of the ejecting springs 10304 being fixedly connected to the mounting plate 10301, it is convenient to eject the fire blocking plate 10303 downward when the trigger block 10305 releases the snap connection with the card slot 10306, so as to block the gap between the bottom of the door leaf and the ground and prevent high-temperature air and flames from entering the room and igniting combustibles.

[0037] Embodiment 2 of a fireproof door core board with good flame retardancy of the present utility model

[0038] Refer to Figures 1 - 4As shown, the trigger card block 10305 is in an inverted triangular structure, and the trigger card block 10305 is arranged directly below the ejector spring 10304. Due to the inverted triangular structure of the trigger card block 10305 and the trigger card block 10305 being arranged directly below the ejector spring 10304, it is convenient for the trigger card block 10305 to stably fix the fire baffle 10303 at the bottom of the mounting plate 10301 during normal use. When a fire occurs and the high temperature softens the trigger card block 10305, the ejector spring 10304 can quickly push the fire baffle 10303 downward. Three spring cavities 10307 are opened at the bottom end of the mounting plate 10301, and the ejector spring 10304 is arranged inside the spring cavity 10307. By arranging the ejector spring 10304 inside the spring cavity 10307, it is convenient for the spring cavity 10307 to provide space for the installation of the ejector spring 10304. The inside of the mounting plate 10301 is filled with a filling block 10308, and the material of the filling block 10308 is perlite material. By filling the inside of the mounting plate 10301 with the filling block 10308 and the material of the filling block 10308 being perlite material, it is convenient for the mounting plate 10301 to have flame retardant and heat insulation properties. The material of the fire baffle 10303 is a flame retardant modified rubber plate. By the material of the fire baffle 10303 being a flame retardant modified rubber plate, it is convenient for the fire baffle 10303 itself to have fire prevention and flame retardant properties and have a certain elasticity, and it can closely fit with the ground when the fire baffle 10303 is ejected, thus effectively preventing the flames and high-temperature air from entering the room interior.

[0039] Embodiment Three of a fireproof door core board with good flame retardancy of the present utility model

[0040] Refer to Figures 1 - 5 As shown, the skeleton 101 is an aluminum alloy skeleton with a hollow structure inside. Due to the skeleton 101 being an aluminum alloy skeleton with a hollow structure inside, the aluminum alloy material itself has the characteristics of light weight and high strength, and the hollow structure is beneficial to reducing heat transfer and improving heat insulation performance. The bottom end of the fiberglass mesh cloth 102 extends downward to both sides of the fire blocking component 103, and the fiberglass mesh cloth 102 is fixedly connected to the fire blocking component 103. By the bottom end of the fiberglass mesh cloth 102 extending downward to both sides of the fire blocking component 103 and the fiberglass mesh cloth 102 being fixedly connected to the fire blocking component 103, it is convenient to enhance the stability of the device and is beneficial to improving the fire blocking performance of the device. The fireproof plate 104 includes a sound insulation layer 10401, and the material of the sound insulation layer 10401 is fiberglass cotton. By the material of the sound insulation layer 10401 being fiberglass cotton, it is convenient for the device to have a certain sound insulation performance. Fireproof layers 10402 are fixedly installed on both sides of the sound insulation layer 10401, and the material of the fireproof layer 10402 is a magnesium oxychloride fireproof board. By the material of the fireproof layer 10402 being a magnesium oxychloride fireproof board, the magnesium oxychloride fireproof board has the characteristics of high temperature resistance, flame retardancy and sound absorption, and high strength, which is beneficial to improving the service life of the device.

[0041] Specifically, the working principle of this fireproof door core board with good flame retardancy: During use, the skeleton 101 is an aluminum alloy skeleton with a hollow structure inside. The aluminum alloy material itself has the characteristics of light weight and high strength, and the hollow structure is conducive to reducing heat transfer and improving heat insulation performance. The bottom end of the fiberglass mesh cloth 102 extends downward to both sides of the fire blocking component 103, and the fiberglass mesh cloth 102 is fixedly connected to the fire blocking component 103, which is convenient for enhancing the stability of the device and is conducive to improving the fire blocking performance of the device. The material of the sound insulation layer 10401 is fiberglass cotton, which is convenient for making the device have a certain sound insulation performance. The material of the fireproof layer 10402 is a magnesium oxychloride fireproof board, which has the characteristics of high temperature resistance, flame retardancy and sound absorption, and high strength, which is conducive to improving the service life of the device. The clamping groove 10306 is clamped and connected with the trigger block 10305, which is convenient for fixedly installing the fire blocking plate 10303 at the bottom of the mounting plate 10301. The trigger block 10305 is made of polyvinyl chloride material, and the softening temperature of polyvinyl chloride is 78 degrees. The temperature during normal use will not exceed 78 degrees, so that the trigger block 10305 has the function of fixing the fire blocking plate 10303 at the bottom of the mounting plate 10301. When a fire occurs, the high temperature melts the trigger block 10305 and can release the clamping with the clamping groove 10306. Three ejecting springs 10304 are fixedly installed at the top of the fire blocking plate 10303, and the top of the ejecting springs 10304 is fixedly connected with the mounting plate 10301, which is convenient for ejecting the fire blocking plate 10303 downward when the trigger block 10305 is disengaged from the clamping groove 10306, blocking the gap between the bottom of the door leaf and the ground, and preventing high-temperature air and flames from entering the room and igniting combustibles.

[0042] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fireproof door core board with good flame retardancy, characterized in that: The invention comprises a frame (101), a fire-blocking assembly (103) is fixedly mounted on the bottom of the frame (101), glass fiber mesh cloths (102) are fixedly mounted on both sides of the frame (101), and a fire-proof plate (104) is fixedly mounted on the inner side of the frame (101), the fire-blocking assembly (103) comprises a mounting plate (10301), side plates (10302) are fixedly mounted on both sides of the mounting plate (10301), a fire-blocking plate (10303) is provided at the bottom of the mounting plate (10301), and the fire-blocking plate (10303) is fixedly mounted on the inner side of the frame (101). Three trigger blocks (10305) are fixedly installed on both sides of the bottom of the fire plate (10303); three slots (10306) are opened at the bottom of the side plate (10302); the slots (10306) are engaged with the trigger blocks (10305); the trigger blocks (10305) are made of polyvinyl chloride material; three ejection springs (10304) are fixedly installed on the top of the fire baffle (10303); the top of the ejection springs (10304) is fixedly connected to the mounting plate (10301).

2. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: The trigger block (10305) has an inverted triangle structure, and the trigger block (10305) is arranged directly below the ejection spring (10304).

3. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: Three spring cavities (10307) are provided at the bottom end of the mounting plate (10301), and the ejection springs (10304) are arranged inside the spring cavities (10307).

4. A fireproof door core board with good flame retardancy according to claim 3, characterized in that: The interior of the mounting plate (10301) is filled with a filling block (10308), and the filling block (10308) is made of perlite material.

5. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: The material of the fire baffle (10303) is flame retardant modified rubber plate.

6. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: The frame (101) is an aluminum alloy frame with a hollow structure inside.

7. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: The bottom end of the glass fiber mesh cloth (102) extends downward to both sides of the fire stop assembly (103), and the glass fiber mesh cloth (102) is fixedly connected to the fire stop assembly (103).

8. A fireproof door core board with good flame retardancy according to claim 1, characterized in that: The fireproof plate (104) comprises a sound insulation layer (10401), and the material of the sound insulation layer (10401) is glass fiber wool.

9. A fireproof door core board with good flame retardancy according to claim 8, characterized in that: Fireproof layers (10402) are fixedly installed on both sides of the sound insulation layer (10401), and the material of the fireproof layer (10402) is a glass magnesium fireproof board.

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