CN211573260U - Sealed fireproof door - Google Patents

Abstract

The utility model is suitable for the technical field of fire fighting equipment, and provides a sealed fire door, which comprises a door frame and a door panel, the door panel and the door frame are connected by hinge rotation, wherein the door frame includes an outer door frame and an inner door frame, the inner door frame The door frame and the outer door frame have an integrated structure, with the wall as the benchmark, a height difference is set between the inner door frame and the outer door frame; a groove is provided on the side of the inner door frame facing the door panel, and the groove is close to the outer door frame. The door frame is arranged, and a fireproof strip is arranged in the groove, and the fireproof strip includes a release paper layer, a fireproof glue layer, an expansion fireproof layer and a flame retardant sealing layer arranged in sequence. When the door panel is closed, the surface of the fireproof strip is touch the side of the door panel. The sealed fire door provided by the utility model can realize more sealing between the door frame and the door panel, prevent the passage of smoke, and has good heat insulation and greatly improves the fire performance.

Description

A sealed fire door

technical field

The utility model belongs to the technical field of fire fighting equipment, in particular to a sealed fire door.

Background technique

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 a fire partition with certain fire resistance, such as fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people. Fire door re-installation includes door frame and fire door installed on the door frame, such as wooden fire door or steel fire door.

Although the wooden fire door and the placement of the fire door have the function of fireproof and heat insulation. However, if the smoke at the fire scene is relatively strong. Since there may be a gap between the door panel and the door frame of the fire door, this will cause the smoke to flow out more or less from the door gap, and the smoke will also cause serious harm to the human body, and the fire door with gaps has poor thermal insulation. it is good.

Therefore, it is necessary to provide a sealed fire door to solve the above problems.

Utility model content

The embodiments of the present utility model provide a sealed fire door, which aims to solve the problem that there is a gap between the door panel and the door frame of some existing fire doors, and the smoke will flow out of the gap.

The embodiments of the present invention are realized in this way, a sealed fire door includes a door frame and a door panel, and the door panel and the door frame are connected by hinge rotation, wherein,

The door frame includes an outer door frame and an inner door frame, and the inner door frame and the outer door frame are integral structures, and a height difference is set between the inner door frame and the outer door frame with the wall as a reference;

A groove is arranged on the side of the inner door frame facing the door panel, the groove is arranged close to the outer door frame, and a fireproof strip is arranged in the groove, and the fireproof strip includes a release paper layer and a fireproof glue arranged in sequence. layer, intumescent fireproof layer and flame retardant sealing layer, when the door panel is closed, the surface of the fireproof strip contacts the side of the door panel.

Furthermore, the intumescent fireproof layer and the flame-retardant sealing layer are bonded by high temperature resistant rubber.

Furthermore, the expansion fireproof layer is composed of expanded graphite.

Furthermore, the flame-retardant sealing layer is composed of a fiber layer and a cortex sealing layer, the cortex sealing layer covers the fiber layer, and the fiber layer is interwoven vertically and horizontally.

Further, the fireproof strip is arranged around the inner circumference of the inner door frame.

Further, the outer door frame is connected to the wall, and the inner door frame is connected to the door panel.

Further, the door panel includes a frame, an inner layer of fireproof panels and an outer layer of fireproof panels, the space enclosed by the frame and the inner layer of fireproof panels is filled with fireproof materials, and the inner layer of fireproof panels is bonded with fireproof glue through fireproof glue. The frame is bonded, and the outer layer fireproof board is bonded with the inner layer fireproof board through fireproof glue.

Further, the fireproof material is perlite fireproof door core board.

Further, the inner layer fireproof board and the outer layer fireproof board are magnesium sulfate-magnesium glass boards.

Compared with the related art, the sealed fire door provided by the utility model has the following beneficial effects:

Compared with the prior art, the sealing type fire door provided by the present application, because the door frame adopts an intumescent fireproof strip, the high temperature can make the fireproof strip expand, which can seal the door frame and the door panel, prevent the smoke from passing through, and achieve better performance. Good for fire protection purposes. And the release paper layer of the fireproof strip can be better separated from the fireproof glue layer. The fireproof strip is pasted into the groove of the inner door frame through the fireproof glue layer. Can prevent fire strip burning.

Two layers of fireproof boards are arranged on both sides of the door panel, and the center of the door panel is also filled with perlite fireproof door core board, which can realize the good heat insulation effect of the fireproof door and greatly improve the fireproof performance.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. It is obvious to those skilled in the art that In other words, on the premise of no creative labor, other drawings can also be obtained based on these drawings.

1 is a schematic structural diagram of a sealed fire door frame provided by an embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the sealing type fire door fire protection strip provided by the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a door panel of a sealed fire door provided by an embodiment of the present invention.

Reference number:

1-door frame, 11-outer door frame, 12-inner door frame, 121-groove, 2-door panel, 21-frame, 22-inner fireproof board, 23-outer fireproof board, 3-hinge, 4-fireproof strip, 41-release paper layer, 42-fireproof glue layer, 43-expansion fireproof layer, 44-flame retardant sealing layer, 441-fiber layer, 442-cortex sealing layer.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

In order to effectively describe the embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Compared with the prior art, as shown in Figures 1-3, a sealed fire door provided by the present invention includes a door frame 1 and a door panel 2, the door frame 1 and the door panel 2 are rotatably connected by a hinge 3, and the door frame Fireproof strips 4 are also arranged between 1 and the door panel 2. Specifically, the fireproof strips 4 are expansion fireproof strips. After the fireproof strips are heated and expanded, the door frame and the door panel are made closer to prevent the passage of smoke, and the fire resistance performance is greatly improved.

As shown in FIG. 1 , the door frame 1 includes an outer door frame 11 and an inner door frame 12. In the specific implementation process, the inner door frame 12 and the outer door frame 11 are integrally formed, and there is a height difference between the two. Specifically, the wall is used as the benchmark. , the outer door frame 11 is higher than the inner door frame 12, the inner door frame 12 is connected with the door panel 2 in rotation, and the outer door frame 11 is installed on the wall through the installation hole. When the fire door is closed, the stepped door frame 1 can reduce the permeability on both sides of the fire door, and has good fire and heat insulation.

A groove 121 is also recessed on the side of the inner door frame 12 facing the door panel 2. Specifically, the groove 121 is set close to the outer door frame 11, and the depth of the groove 121 is matched with the thickness of the unexpanded fireproof strip 4, so that when the door panel 2 is closed , the surface of the fireproof strip 4 contacts the side of the door panel 2 .

In the specific implementation process, as shown in FIG. 2 , the fireproof strip 4 includes a release paper layer 41 , a fireproof glue layer 42 , an expansion fireproof layer 43 and a flame retardant sealing layer 44 , which are arranged in sequence. The intumescent fireproof layer 43 and the flame retardant sealing layer 44 are bonded by high temperature resistant rubber, the intumescent fireproof layer 43 is composed of expanded graphite, the flame retardant sealing layer 44 is composed of a fiber layer 441 and a cortex sealing layer 442, and the fiber layer 441 It is composed of fibers interwoven vertically and horizontally, and the cortex sealing layer 442 is arranged to cover the fiber layer 441 . When installing the fireproof strip 4 , the release paper layer 41 is torn off, and the fireproof strip 4 is pasted in the groove 121 through the fireproof adhesive layer 42 , and is pasted around the inner circumference of the inner door frame 12 .

As shown in FIG. 3 , the door panel 2 includes a frame 21, an inner layer fireproof plate 22 and an outer layer fireproof plate 23. The space enclosed by the frame 21 and the inner layer fireproof plate 22 is filled with fireproof material, and the fireproof material is a fireproof filling material. The material can be perlite fire door core board, the main components include magnesium oxide, magnesium chloride, sawdust and perlite, which are non-toxic, odorless, environmentally friendly, fireproof, moisture-proof, corrosion-resistant, easy to construct, lightweight and high-strength, thermal insulation, Features that can be cut, planed and sawed.

The inner layer fireproof board 22 is bonded with the frame 21 by fireproof glue, and the outer layer fireproof board 23 is bonded with the inner layer fireproof board 22 by fireproof glue. In the specific implementation process, the inner layer fireproof board 22 and the outer layer fireproof board 23 can be made of magnesium sulfate-magnesium glass board, and the main components include active high-purity magnesium oxide, magnesium sulfate, alkali-resistant glass fiber cloth, flexible plant fiber, non-combustible light weight Perlite, chemically stabilized lithopone, etc., have the characteristics of high temperature resistance, flame retardant, sound absorption, shock resistance, insect resistance, waterproof and moisture-proof, light-weight anti-corrosion, etc. The surface can be directly sprayed with fire-retardant paint.

Therefore, the sealed fire door provided by the utility model can realize more sealing between the door frame and the door panel, prevent the passage of smoke, has good heat insulation, and greatly improves the fire performance.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (9)

1. A sealing fireproof door is characterized by comprising a door frame and a door plate, wherein the door plate and the door frame are rotatably connected through a hinge,

the door frame comprises an outer door frame and an inner door frame, the inner door frame and the outer door frame are of an integral structure, and a height difference is arranged between the inner door frame and the outer door frame on the basis of a wall body;

the door frame is provided with the recess on the side towards the door plant, the recess is close to outer door frame sets up, be provided with fire prevention strip in the recess, fire prevention strip is including the release paper layer, fire prevention glue film, inflation flame retardant coating and the fire-retardant sealing layer that set gradually, when the door plant was closed, fire prevention strip surface contact the door plant side.

2. The hermetically sealed fire rated door of claim 1, wherein the intumescent fire barrier layer and the flame retardant sealant layer are bonded together by a high temperature resistant rubber.

3. The hermetically sealed fire rated door of claim 1, wherein the intumescent fire barrier layer is comprised of expanded graphite.

4. The hermetically sealed fire rated door of claim 1, wherein the flame retardant seal layer is comprised of a fibrous layer and a cortical seal layer, the cortical seal layer covering the fibrous layer, and the fibrous layer being criss-cross interwoven.

5. The hermetically sealed fire rated door of claim 1, wherein the fire rated strip is positioned around an inner perimeter of the inner frame.

6. The hermetically sealed fire rated door of claim 1, wherein the outer frame is attached to a wall and the inner frame is attached to the door panel.

7. The hermetically sealed fire rated door of claim 1, wherein the door panel comprises a frame, an inner fire rated panel, and an outer fire rated panel, wherein a space defined between the frame and the inner fire rated panel is filled with a fire rated material, the inner fire rated panel is bonded to the frame by a fire rated glue, and the outer fire rated panel is bonded to the inner fire rated panel by a fire rated glue.

8. The hermetically sealed fire rated door of claim 7, wherein the fire rated material is a perlite fire rated door core.

9. The hermetically sealed fire rated door of claim 7, wherein the inner and outer fire rated panels are magnesium sulfate-magnesium sheets.

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