Heat-insulation expansion high-temperature-resistant fireproof door frame

Abstract

The utility model discloses a heat-insulation expansion high-temperature-resistant fireproof door frame which comprises a door frame body, polyurethane heat-insulation strips, right-angle fixing pieces and arc-shaped heat conduction strips, the door frame body is composed of a first frame and a second frame, and a first heat-insulation filling strip, a second heat-insulation filling strip and a third heat-insulation filling strip are arranged in the first frame and the second frame. The right-angle fixing pieces are welded to the first frame and the second frame, and the arc-shaped heat conduction strips are fixedly connected to the surface of the first frame. The width of the first frame is larger than that of the second frame, the second frame serves as a fire receiving face of the door frame, heat absorbed by the door frame can be reduced, heat conducted by the second frame is dissipated through the first frame and the aluminum strips, the heat dissipation capacity of the door frame is improved, and the heat insulation capacity is good. The first heat-insulation filling strip, the second heat-insulation filling strip and the third heat-insulation filling strip are separated by the polyurethane heat-insulation strips, so that a plurality of heat-insulation barriers can be formed, heat conduction is blocked, and the temperature of the door frame is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fireproof door frame technology, specifically a heat-insulating, expansion-resistant, high-temperature fireproof door frame. Background Technology

[0002] Currently, fire door frames are usually made of steel materials, such as galvanized iron sheets, which are stamped and assembled. The door frame is often filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, such as rock wool, glass wool, and perlite, to prevent heat transfer.

[0003] However, since fire door frames are made of metal, they are good conductors of heat. When the door frame is on fire, heat can easily be transferred from the fire-exposed side through the frame to the unexposed side. This can cause the door frame temperature to rise higher and higher, limiting the protective effect of the door frame. A high-temperature door frame may accelerate the combustion of surrounding combustibles and even ignite new sources of fire, thereby expanding the fire and reducing the overall protective effect and safety performance of the fire door. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-insulating, expansion-resistant, high-temperature fireproof door frame to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating, expansion-resistant, high-temperature fireproof door frame, comprising a door frame, wherein the door frame is composed of a first frame and a second frame, and the width of the first frame is greater than that of the second frame, which can reduce the heat-receiving area of ​​the door frame and reduce heat conduction; the first frame and the second frame are provided with a first heat-insulating filling strip, a second heat-insulating filling strip, and a third heat-insulating filling strip inside, which can provide heat insulation and delay heat transfer;

[0006] The polyurethane thermal insulation strip is provided with two separate thermal insulation filler strips: a first thermal insulation filler strip, a second thermal insulation filler strip, and a third thermal insulation filler strip. Polyurethane has an extremely low thermal conductivity, which can effectively block the conduction of heat. The two thermal insulation filler strips can form two thermal insulation barriers, further improving the thermal insulation effect.

[0007] Right-angle fixing pieces are provided in several places and welded to the first frame and the second frame to improve the door frame's resistance to deformation and make the door frame more robust.

[0008] The arc-shaped heat-conducting strips are arranged in several places and fixedly connected to the surface of the first frame. The arc-shaped heat-conducting strips are conducive to the heat dissipation of the first frame and prevent the temperature of the first frame from becoming too high.

[0009] Furthermore, the surface of the second frame is provided with several strip-shaped holes. These holes can reduce the amount of metal used, thereby slowing down the rate at which heat is conducted from the second frame and improving the heat insulation capacity of the door frame.

[0010] Furthermore, the door frame surface is provided with a fireproof sealing strip, and the shape of the fireproof sealing strip matches the door frame. High temperature causes the fireproof sealing strip to expand, which can fill the gap between the door frame and the door, preventing the escape of hot air and smoke.

[0011] Furthermore, the arc-shaped heat-conducting strip contains an aluminum strip, which can quickly dissipate the heat of the door frame into the air, improve the heat dissipation capacity of the door frame, and thus reduce the temperature of the door frame.

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

[0013] (1) The width of the first frame is greater than that of the second frame. The second frame, as the fire-exposed surface of the door frame, can reduce the heat absorbed by the door frame. The heat conducted by the first frame and aluminum strip is dissipated by the second frame, which improves the heat dissipation capacity of the door frame and prevents the temperature of the door frame from rising too quickly. It has good heat insulation capacity.

[0014] (2) The first, second and third heat insulation fillers are separated by polyurethane heat insulation strips, which can form multiple heat insulation barriers, which can slightly block heat conduction and reduce the temperature of the door frame.

[0015] (3) The fireproof sealing strip is located between the door frame and the door. When the fireproof sealing strip is heated and impacted, it can block the escape of hot air and smoke, prevent the spread of fire source and smoke, and effectively isolate the fire. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 This is a sectional view of the door frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the second frame and the strip hole in this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the right-angle fixing piece and the mounting hole of this utility model.

[0020] In the diagram: 1. Door frame; 2. Arc-shaped heat-conducting strip; 3. Fireproof sealing strip; 4. First frame; 5. Second frame; 6. Aluminum strip; 7. Strip hole; 8. First heat-insulating filler strip; 9. Second heat-insulating filler strip; 10. Third heat-insulating filler strip; 11. Polyurethane heat-insulating strip; 12. Support strip; 13. Right-angle fixing piece; 14. Mounting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figure 1-4 This utility model provides a technical solution: a heat-insulating, expansion-resistant, high-temperature fireproof door frame, including a door frame 1. The door frame 1 is composed of a first frame 4 and a second frame 5, and the width of the first frame 4 is greater than that of the second frame 5. The second frame 5 serves as the fire-facing surface of the door frame 1, and the first frame 4 serves as the fire-resistant surface of the door frame 1. The first frame 4 and the second frame 5 are provided with a first heat-insulating filling strip 8, a second heat-insulating filling strip 9, and a third heat-insulating filling strip 10 inside, which can effectively block the transfer of heat, reduce the thermal conductivity of the door frame 1, and thus protect the temperature of the fire-resistant surface from rising rapidly.

[0023] The polyurethane insulation strip 11 is provided in two parts and separated by a first insulation filler strip 8, a second insulation filler strip 9, and a third insulation filler strip 10, which can form five layers of insulation and flatness, reduce heat transfer, and help delay heat diffusion.

[0024] Right-angle fixing pieces 13 are provided in several units and welded to the first frame 4 and the second frame 5. The right-angle fixing pieces 13 improve the structural strength of the door frame 1, making the door frame 1 less prone to deformation and safer during stacking and transportation.

[0025] The arc-shaped heat-conducting strip 2 is provided in several pieces and fixedly connected to the surface of the first frame 4. The arc-shaped heat-conducting strip 2 dissipates heat to the first frame 4, which serves as the back surface, thereby improving the heat dissipation capacity of the first frame 4 and preventing the temperature of the first frame 4 from rising rapidly.

[0026] In this embodiment, as Figure 2 and Figure 3 As shown, the surface of the second frame 5 is provided with a number of strip holes 7. The strip holes 7 can reduce the amount of metal used in the second frame 5, delay the conduction of heat, and also reduce the heat absorbed by the door frame 1.

[0027] In this embodiment, as Figure 1 and Figure 2As shown, the surface of the door frame 1 is provided with a fireproof sealing strip 3, and the shape of the fireproof sealing strip 3 matches the door frame 1. The fireproof door sealing strip is made of polymer material and has excellent flame retardant properties. When a fire breaks out, the high temperature acts on the fireproof sealing strip 3, and the polymer material inside melts and expands, quickly filling the gaps between the door frames 1, thereby preventing the spread of fire and smoke, improving the fireproof effect of the door frame 1, and helping to isolate the fire.

[0028] In this embodiment, as Figure 2 and Figure 4 As shown, the right-angle fixing piece 13 has mounting holes 14 on its surface, and the first frame 4 also has holes corresponding to the mounting holes 14, so that the electric drill can pass through the mounting holes 14 to drill holes in the wall. After the expansion bolts are fixed to the holes in the wall, the expansion bolts connect the right-angle fixing piece 13 to the wall, thereby realizing the installation of the door frame 1.

[0029] In this embodiment, as Figure 2 As shown, the polyurethane insulation strip 11 has a support strip 12 inside. The support strip 12 can support the flexible polyurethane insulation strip 11, making the polyurethane insulation strip 11 less prone to bending and able to be stably fixed inside the first frame 4 and the second frame 5.

[0030] In this embodiment, as Figure 2 As shown, the arc-shaped heat-conducting strip 2 has an aluminum strip 6 inside, which can quickly conduct heat to the first frame 4 and improve the heat dissipation capacity of the first frame 4.

[0031] In this embodiment, the first heat insulation filler strip 8, the second heat insulation filler strip 9, and the third heat insulation filler strip 10 are made of rock wool, which is flexible and can fit with the first frame 4, the second frame 5, and the polyurethane heat insulation strip 11. The filling effect is good, avoiding gaps and further improving the heat insulation performance. The rock wool filler strip can effectively block the transfer of heat. Rock wool material will not melt at high temperatures and has good fire resistance, which can effectively delay the spread of fire.

[0032] Specifically, in use, after the door frame 1 is fixed to the wall by the right-angle fixing piece 13, the first frame 4 is the unexposed surface and the fire-exposed surface. When a fire occurs on the fire-exposed surface, the width of the second frame 5 is smaller than that of the first frame 4, so the fire-exposed area of ​​the door frame 1 is small, and less heat is absorbed and conducted. The wider first frame 4 has a large heat dissipation area, and with the addition of the aluminum strip 6 and the arc-shaped heat-conducting strip 2, heat can be dissipated quickly, reducing the temperature of the first frame 4.

[0033] Polyurethane thermal insulation strip 11, first thermal insulation filler strip 8, second thermal insulation filler strip 9, and third thermal insulation filler strip 10 block heat and prevent the temperature of the first frame 4 from rising rapidly.

[0034] High temperatures cause the fireproof sealing strip 3 to expand. The fireproof sealing strip 3 fills the gap between the door and the door frame 1, blocking the flow of smoke and providing stable heat insulation.

[0035] By blocking heat conduction in multiple ways, the door frame 1 can withstand high temperatures and provide good heat insulation, which can effectively improve the safety performance of the door frame 1 and ensure its effective protection in a fire.

[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating, expansion-resistant, high-temperature fireproof door frame, characterized in that, include: The door frame (1) is composed of a first frame (4) and a second frame (5), and the width of the first frame (4) is greater than that of the second frame (5). The first frame (4) and the second frame (5) are provided with a first heat insulation filling strip (8), a second heat insulation filling strip (9) and a third heat insulation filling strip (10). Polyurethane thermal insulation strip (11), wherein two polyurethane thermal insulation strips (11) are provided and separated by a first thermal insulation filler strip (8), a second thermal insulation filler strip (9), and a third thermal insulation filler strip (10); Right-angle fixing piece (13), several right-angle fixing pieces (13) are provided and welded to the first frame (4) and the second frame (5); Arc-shaped heat-conducting strips (2) are provided in several places and fixedly connected to the surface of the first frame (4).

2. The heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The surface of the second frame (5) is provided with several strip holes (7).

3. The heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The door frame (1) is provided with a fireproof sealing strip (3) on its surface, and the shape of the fireproof sealing strip (3) matches that of the door frame (1).

4. The heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The right-angle fixing piece (13) has mounting holes (14) on its surface.

5. A heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The polyurethane insulation strip (11) has a support strip (12) inside.

6. The heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The arc-shaped heat-conducting strip (2) has an aluminum strip (6) inside.

7. The heat-insulating, expansion-resistant, high-temperature fireproof door frame according to claim 1, characterized in that: The first thermal insulation filler strip (8), the second thermal insulation filler strip (9), and the third thermal insulation filler strip (10) are flexible and fit together with the first frame (4), the second frame (5), and the polyurethane thermal insulation strip (11).

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