Heat insulation door panel suitable for fireproof door

By installing a sealing structure and connecting pipe in the fire door panel, water is pumped into the installation groove to extinguish the fire directly, solving the problem that the fire door panel cannot extinguish flames and improving the fire resistance performance of the fire door.

CN224161643UActive Publication Date: 2026-04-24YONGKANG DASHU DECORATION MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGKANG DASHU DECORATION MATERIAL CO LTD
Filing Date
2025-03-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing fire door insulation panels cannot effectively extinguish flames on one side of the door, resulting in a reduced lifespan of the insulation panels when the fire is burning.

Method used

A sealing structure, including a sealing plate, a sealing ring, and a connecting pipe, is installed in the fire door's insulated panel. Water is pumped into the connecting pipe and discharged through the mounting groove to extinguish the fire directly.

Benefits of technology

The fire door insulation panel increases the time it blocks flames, reduces the time and temperature it is exposed to flames, and improves the fire resistance of the fire door.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224161643U_ABST
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Abstract

The utility model provides a heat insulation door panel suitable for a fireproof door, which comprises a door panel structure, the door panel structure comprises a door panel body, a mounting groove is arranged in the door panel body, a connecting hole is arranged on one side of the inner wall of the mounting groove, a connecting pipe is arranged on the outer wall of the door panel body, the connecting pipe is connected with the connecting hole, and the connecting pipe is connected with the door panel body. A positioning flange is arranged at the top of the connecting pipe, and supporting strips are arranged on the two sides of the inner wall of the mounting groove. Water can be guided into the mounting groove through the connecting pipe, then the water pressure in the mounting groove is increased, and the sealing ring is ejected out, so that the sealing ring is separated from the water tank, and then the water is directly discharged through the water tank, so that the water can extinguish fire with an ignition point on one side of the heat insulation door panel of the fireproof door; the flame blocking time of the fireproof door heat insulation door panel is prolonged, the flame grilling time and temperature of the fireproof door heat insulation door panel are reduced, and the flame blocking time of the fireproof door heat insulation door panel is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of fire door technology, specifically relating to an insulated door panel suitable for fire doors. Background Technology

[0002] With the continuous improvement of building safety standards, fire-resistant barriers have become a key passive fire protection system in industrial plants, high-rise buildings, and rail transit systems. As a core component of fire compartments, fire doors must effectively block the spread of flames and inhibit heat conduction during a fire, buying time for evacuation and fire rescue. According to statistics from the International Fire Protection Association (NFPA data reference), approximately 37% of casualties in building fires are caused by the spread of fire across fire zones, highlighting the necessity of high-performance fire door systems.

[0003] The main material of fire doors is the door insulation panel. However, the door insulation panel can only insulate heat and cannot extinguish the flames on one side of the door. This causes the door insulation panel to be burned by the flames for a long time, reducing its resistance to flames. Utility Model Content

[0004] Purpose of utility model

[0005] To address the aforementioned technical problems, this utility model provides an insulated door panel suitable for fire doors, thereby solving the technical problems mentioned in the background art.

[0006] Technical solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is an insulated door panel suitable for fire doors, including a door panel structure, wherein the outer wall of the door panel structure is provided with a sealing structure;

[0008] A door panel structure includes a door panel body, an installation groove is provided inside the door panel body, a connection hole is provided on one side of the inner wall of the installation groove, a connecting pipe is provided on the outer wall of the door panel body, the connecting pipe is connected to the connection hole, a positioning flange is provided on the top of the connecting pipe, and support strips are provided on both sides of the inner wall of the installation groove.

[0009] Preferably, the number of mounting slots is set to multiple, and the multiple mounting slots are distributed at equal intervals on one side of the outer wall of the door panel body.

[0010] Preferably, the sealing structure includes a sealing plate and a sealing ring. Positioning strips are provided on both sides of the sealing plate, and an auxiliary groove is formed between the positioning strips and the sealing plate. The auxiliary groove is engaged with a support strip.

[0011] Preferably, the sealing plate has a water trough in the middle, and a placement groove is provided at the top and bottom of one side of the water trough. An adhesive strip is provided at the top of one side of the inner wall of the placement groove.

[0012] Preferably, the sealing ring is disposed on the inner wall of the water tank, and spring strips are disposed on both sides of the sealing ring, with a telescopic strip disposed at one end of the spring strips.

[0013] Beneficial effects

[0014] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0015] This invention uses a connecting pipe to guide water into the installation groove, increasing the water pressure inside and pushing out the sealing ring. This allows the sealing ring to detach from the water groove, and the water can then be discharged directly through the water groove. This allows the water to extinguish the fire at the ignition point on one side of the fire door insulation panel, increasing the time the fire door insulation panel can block flames and reducing the time and temperature it is exposed to flames, thus improving the fire door insulation panel's flame-blocking time. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a perspective view of the door panel structure of this utility model;

[0018] Figure 3 This is a three-dimensional unfolded view of the sealing structure of this utility model.

[0019] Figure Labels

[0020] 1. Door panel structure; 101. Door panel body; 102. Mounting groove; 103. Connecting hole; 104. Connecting pipe; 105. Positioning flange; 106. Support strip; 2. Sealing structure; 201. Sealing plate; 202. Positioning strip; 203. Auxiliary groove; 204. Water groove; 205. Placement groove; 206. Adhesive strip; 207. Sealing ring; 208. Spring strip; 209. Telescopic strip. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0025] Reference Figure 1-3 The diagram shows an insulated door panel suitable for fire doors, including a door panel structure 1, wherein the outer wall of the door panel structure 1 is provided with a sealing structure 2;

[0026] The door panel structure 1 includes a door panel body 101. An installation groove 102 is formed inside the door panel body 101. A connection hole 103 is formed on one side of the inner wall of the installation groove 102. A connecting pipe 104 is provided on the outer wall of the door panel body 101, and the connecting pipe 104 is connected to the connection hole 103. A positioning flange 105 is provided at the top of the connecting pipe 104. Support strips 106 are provided on both sides of the inner wall of the installation groove 102. Multiple installation grooves 102 are evenly distributed on the door panel. On one side of the outer wall of the main body 101, the interior of the door panel main body 101 is supported by inorganic composite materials, and the outer wall is wrapped with a protective layer of steel material with a thickness of 1.5mm or more. When a fire occurs, the water pump draws water into the interior of the connecting pipe 104, and then the connecting pipe 104 sends the water into the interior of the mounting groove 102. Then the water pressure inside the mounting groove 102 increases, opening the sealing structure 2 so that the water can be discharged directly, isolating the flame on one side, and also reducing the temperature on one side of the door panel, increasing the time the door panel can withstand the flame.

[0027] Furthermore, in the above technical solution, the sealing structure 2 includes a sealing plate 201 and a sealing ring 207. Positioning strips 202 are provided on both sides of the sealing plate 201. An auxiliary groove 203 is formed between the positioning strips 202 and the sealing plate 201. The auxiliary groove 203 is engaged with a support strip 106. A water trough 204 is formed in the middle of the sealing plate 201. Placement grooves 205 are formed on the top and bottom of one side of the water trough 204. An adhesive strip 206 is provided on the top of one side of the inner wall of the placement groove 205. The sealing ring 207... 07 is set on the inner wall of the water tank 204. Spring strips 208 are provided on both sides of the sealing ring 207. One end of the spring strip 208 is provided with a telescopic strip 209. After the water pressure inside the installation groove 102 increases, the water pressure pushes the sealing ring 207 to move outward and separate from the water tank 204. Then the bonding strip 206 squeezes the telescopic strip 209, so that the telescopic strip 209 squeezes the spring strip 208. After that, the telescopic strip 209 separates from the bonding strip 206, so that the water tank 204 is opened and the water inside the installation groove 102 is discharged through the water tank 204.

[0028] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fire-resistant door panel, characterized in that, include Door panel structure (1), the outer wall of the door panel structure (1) is provided with a sealing structure (2); The door panel structure (1) includes a door panel body (101), an installation groove (102) is provided inside the door panel body (101), a connection hole (103) is provided on one side of the inner wall of the installation groove (102), a connecting pipe (104) is provided on the outer wall of the door panel body (101), the connecting pipe (104) is connected to the connection hole (103), a positioning flange (105) is provided on the top of the connecting pipe (104), and support strips (106) are provided on both sides of the inner wall of the installation groove (102).

2. The insulated door panel suitable for fire doors according to claim 1, characterized in that: The number of the mounting grooves (102) is set to multiple, and the multiple mounting grooves (102) are distributed at equal intervals on one side of the outer wall of the door panel body (101).

3. A fire door panel suitable for fire doors according to claim 1, characterized in that: The sealing structure (2) includes a sealing plate (201) and a sealing ring (207). Positioning strips (202) are provided on both sides of the sealing plate (201). An auxiliary groove (203) is provided between the positioning strip (202) and the sealing plate (201). The auxiliary groove (203) is engaged with the support strip (106).

4. A fire door insulation panel according to claim 3, characterized in that: A water trough (204) is provided in the middle of the sealing plate (201), and a placement groove (205) is provided on the top and bottom of one side of the water trough (204). An adhesive strip (206) is provided on the top of one side of the inner wall of the placement groove (205).

5. A fire door panel suitable for fire doors according to claim 3, characterized in that: The sealing ring (207) is disposed on the inner wall of the water tank (204), and spring strips (208) are disposed on both sides of the sealing ring (207), and a telescopic strip (209) is disposed at one end of the spring strips (208).