Door plate flame-retardant structure

Abstract

The utility model discloses a door plate flame-retardant structure which comprises two layers of base plates and a door frame, a connecting block is fixedly installed between the two base plates, an adhesive layer adheres to the outer side of each base plate, a heat insulation layer adheres to the outer side of each adhesive layer, a flame-retardant layer is arranged on the outer side of each heat insulation layer, and the door frame is fixedly arranged in a four-edge combined mode. Surface fire prevention can be conducted on the base plate through the fireproof layer, the flame-retardant layer can prevent the base plate from burning, meanwhile, the heat insulation layer isolates the temperature of a fire and prevents the base plate from burning, and meanwhile due to the fact that the fireproof layer and the limiting groove are sealed in an extrusion mode, the fire cannot enter the base plate through gaps in the four sides of the door frame, and the flame-retardant effect of the base plate is improved; the outside temperature is sensed through the temperature sensing bulb, when the outside temperature exceeds a certain range value, water vapor in the temperature sensing bulb is transmitted to the thermostatic expansion valve and used for jacking a piston in the thermostatic expansion valve and opening the thermostatic expansion valve, and carbon dioxide gas flows out of the air holes and used for conducting flame retardance on the door plate or slowing down combustion of the door plate.

Description

Technical Field

[0001] The utility model relates to the technical field of door panels, in particular to a flame retardant structure of a door panel. Background Art

[0002] Door panels are essential materials for making various doors in homes. Existing door panels are mostly made of wood and stainless steel. Among them, wooden door panels are made of wood and do not have fireproof properties. They are extremely easy to burn. When a fire occurs, it will intensify the fire and cause danger. Utility Model Content

[0003] The purpose of the utility model is to provide a door panel flame retardant structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame retardant structure of a door panel, comprising a substrate and a door frame, the substrate having two layers, a connecting block fixedly installed between the two substrates, an adhesive layer bonded to the outer side of the substrate, a heat insulation layer bonded to the outer side of the adhesive layer, a flame retardant layer arranged on the outer side of the heat insulation layer, the door frame being fixedly arranged in a four-side combination, a limiting groove for accommodating the substrate is opened in the middle of the door frame, and the substrate and the limiting groove are sealed.

[0005] As a further preferred embodiment of the present technical solution, a fireproof layer is provided on the outer side of the flame retardant layer.

[0006] As a further preferred embodiment of the present technical solution, a decorative film layer is provided between the heat insulation layer and the flame retardant layer.

[0007] As a further preferred embodiment of the present technical solution, the fireproof layer is protruded on one side of four sides, and the fireproof layer and the limiting groove are squeezed and sealed.

[0008] As a further preferred embodiment of the technical solution, a storage frame is fixedly installed between the two substrates, a collection bag for storing carbon dioxide gas is accommodated inside the storage frame, a temperature sensing bag is fixedly installed on the top of the storage frame, a thermal expansion valve is installed inside the top of the collection bag, and the temperature sensing bag is connected to the thermal expansion valve through a pipeline.

[0009] As a further preferred embodiment of the present technical solution, ventilation holes are equidistantly provided on the four sides of the door frame.

[0010] The utility model provides a door panel flame retardant structure, which has the following beneficial effects:

[0011] (1) The utility model can provide surface fire protection for the substrate through the fireproof layer, and the flame retardant layer can prevent the substrate from burning. At the same time, the heat insulation layer isolates the temperature of the fire to prevent the substrate from burning. At the same time, since the fireproof layer and the limiting groove are squeezed and sealed, the fire will not enter the substrate through the gaps on the four sides of the door frame, thereby improving the flame retardant effect of the substrate.

[0012] (2) The utility model senses the external temperature through a temperature-sensing bag. When the external temperature exceeds a set range, the volume of the liquid in the temperature-sensing bag increases and expands to a specified size. At this time, through the connection of a pipeline, the expanded volume of the liquid will lift the piston in the thermal expansion valve to open the thermal expansion valve, and carbon dioxide gas will flow out from the air vent to provide flame retardancy to the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0015] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0016] Figure 4 It is a partial structural schematic diagram of the utility model;

[0017] In the figure: 1. base plate; 2. door frame; 3. connecting block; 4. adhesive layer; 5. heat insulation layer; 6. flame retardant layer; 7. limiting groove; 8. fireproof layer; 9. decorative film layer; 10. storage frame; 11. collecting bag; 12. temperature sensing package; 13. thermal expansion valve; 14. air vent. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a door panel flame retardant structure includes a substrate 1 and a door frame 2, wherein the substrate 1 has two layers, a connecting block 3 is fixedly installed between the two substrates 1, an adhesive layer 4 is bonded to the outer side of the substrate 1, the adhesive layer 4 is epoxy resin glue, an insulating layer 5 is bonded to the outer side of the adhesive layer 4, the insulating layer 5 is a porous vacuum silicon film, a flame retardant layer 6 is arranged on the outer side of the insulating layer 5, the flame retardant layer 6 is a thermosetting resin impregnated paper high-pressure laminate, the door frame 2 is fixedly arranged in a four-side combination, a limiting groove 7 for accommodating the substrate 1 is opened in the middle of the door frame 2, and the substrate 1 and the limiting groove 7 are sealed.

[0020] like Figures 1 to 4As shown, a fireproof layer 8 is arranged on the outer side of the flame retardant layer 6. The fireproof layer 8 is made of base paper after being impregnated with melamine and phenolic resin in a high temperature and high pressure environment.

[0021] The surface of the substrate 1 can be fire-protected.

[0022] like Figures 1 to 4 As shown, a decorative film layer 9 is provided between the heat insulation layer 5 and the flame retardant layer 6, and the decorative film layer 9 is a PVC film.

[0023] The base plate 1 can be decorated by the decorative film layer 9 to improve the appearance of the door panel.

[0024] like Figures 1 to 4 As shown, one side of the four sides of the fireproof layer 8 is protruding, and the fireproof layer 8 and the limiting groove 7 are squeezed and sealed.

[0025] By protruding one side of the four sides of the fireproof layer 8, the four sides of the fireproof layer 8 will be thickened, so as to improve the sealing performance between the fireproof layer 8 and the door frame 2.

[0026] like Figures 1 to 4 As shown, a storage frame 10 is fixedly installed between the two substrates 1, and a collection bag 11 for storing carbon dioxide gas is accommodated inside the storage frame 10. A temperature sensing bag 12 is fixedly installed on the top of the storage frame 10. The temperature sensing bag 12 contains a liquid that can sense the external temperature. The use principle of this temperature sensing bag 12 is the same as the principle of transporting refrigerant in an air conditioner. A thermal expansion valve 13 is installed inside the top of the collection bag 11. The temperature sensing bag 12 is connected to the thermal expansion valve 13 through a pipeline, and a movable piston is installed inside the thermal expansion valve 13.

[0027] The external temperature is sensed by the temperature-sensing bag 12. When the external temperature exceeds the set range, the volume of the liquid in the temperature-sensing bag 12 increases and expands to a specified size. At this time, through the connection of the pipeline, the expanded liquid volume will lift the piston in the thermal expansion valve 13 to open the thermal expansion valve 13, and the carbon dioxide gas will flow out from the air vent 14 to flame retard the door panel.

[0028] like Figures 1 to 4 As shown, ventilation holes 14 are equidistantly provided on the four sides of the door frame 2 .

[0029] Used to achieve the simultaneous outflow of carbon dioxide gas on four sides of the door panel.

[0030] The utility model provides a door panel flame retardant structure, and the specific working principle is as follows:

[0031] When assembling the door panel, the substrate 1 and the adhesive layer 4, the heat insulation layer 5 and the flame retardant layer 6 installed on the substrate 1 are installed inside the limiting groove 7 inside the door frame 2. When a fire occurs, the surface of the substrate 1 can be fireproofed by the fireproof layer 8, and the flame retardant layer 6 can prevent the substrate 1 from burning. At the same time, the heat insulation layer 5 isolates the temperature of the fire to prevent the substrate 1 from burning. At the same time, since the fireproof layer 8 and the limiting groove 7 are squeezed and sealed, the fire will not enter the substrate 1 through the gaps on the four sides of the door frame 2, thereby improving the flame retardant effect of the substrate 1.

[0032] When a fire occurs, the external temperature is sensed by the temperature sensing package 12. When the external temperature exceeds the set range, the volume of the liquid in the temperature sensing package 12 increases and expands to a specified size. At this time, through the connection of the pipeline, the expanded liquid volume will lift the piston in the thermal expansion valve 13 to open the thermal expansion valve 13, and the carbon dioxide gas will flow out from the air vent 14 to flame retard the door panel.

[0033] 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 door panel flame retardant structure, characterized in that: The invention comprises a base plate (1) and a door frame (2), wherein the base plate (1) has two layers, a connecting block (3) is fixedly installed between the two base plates (1), an adhesive layer (4) is bonded to the outer side of the base plate (1), a heat insulation layer (5) is bonded to the outer side of the adhesive layer (4), a flame retardant layer (6) is arranged on the outer side of the heat insulation layer (5), the door frame (2) is fixedly arranged in a four-side combination, a limiting groove (7) for accommodating the base plate (1) is opened in the middle of the door frame (2), and the base plate (1) and the limiting groove (7) are sealed.

2. The door panel flame retardant structure according to claim 1, characterized in that: A fireproof layer (8) is arranged on the outer side of the flame retardant layer (6).

3. The door panel flame retardant structure according to claim 1, characterized in that: A decorative film layer (9) is provided between the heat insulation layer (5) and the flame retardant layer (6).

4. The door panel flame retardant structure according to claim 2, characterized in that: The four sides of the fireproof layer (8) are protrudingly arranged on one side, and the fireproof layer (8) and the limiting groove (7) are squeezed and sealed.

5. The door panel flame retardant structure according to claim 1, characterized in that: A storage frame (10) is fixedly installed between the two substrates (1), a collection bag (11) for storing carbon dioxide gas is accommodated inside the storage frame (10), a temperature sensing bag (12) is fixedly installed on the top of the storage frame (10), a thermal expansion valve (13) is installed inside the top of the collection bag (11), and the temperature sensing bag (12) is connected to the thermal expansion valve (13) through a pipeline.

6. The door panel flame retardant structure according to claim 1, characterized in that: The four sides of the door frame (2) are provided with ventilation holes (14) at equal distances.

Images