KR101666379B1 - Fire prevention unit for door - Google Patents

Abstract

The present invention provides a path for inducing the expansion of a heat expandable sheet into a gap between a door and a door frame when the heat expandable sheet is deformed and expanded in a fireproof unit installed in a door frame, To thereby provide a sufficient time for the heat expandable sheet to expand into a gap between the door and the door frame.
In order to achieve this, the thermal expansion direction induction type fireproof unit for a door according to the present invention comprises a closed door and a rectangular frame disposed at a step portion of a door frame positioned forward of the door in the door frame; A heat expansion sheet disposed on the left side of the frame; And supporting means arranged on the frame to support the heat expansion sheet,
The support means comprises a first support horizontally connected at a left end of a front face of the frame to support a front face of the heat expansion sheet,
And guiding means for providing an induction path for inflating the heat expansion sheet to a gap between the door and the door frame in the event of a fire.

Description

FIRE PREVENTION UNIT FOR DOOR FIELD OF THE INVENTION [0001]

FIELD OF THE INVENTION The present invention relates to a thermal expansion direction induction type fire preventing unit for a door for inducing and expanding a heat expanding sheet in a fire between a door and a door frame.

With respect to the technology relating to the fireproof structure for a door,

Korean Patent Registration No. 10-1505114 (Registered, hereinafter referred to as "Prior Art" hereinafter) "Fireproof Door"

The prior art is characterized in that an expansion sheet composed of an expanded graphite material is provided between the support frame and the outer panel so that the door is kept thin during normal operation and the expansion sheet is swollen when a fire is generated, .

An object of the present invention is to provide a thermal expansion direction induction type fire preventing unit for a door, which is capable of inducing the direction of expansion in a gap between a door and a door frame when the inflatable sheet is inflated by fire.

Further, the present invention uses a frame having a higher heat distortion temperature than the heat expansion sheet to maintain the shape of the heat expansion sheet until the frame reaches the heat distortion temperature when the heat expansion sheet expands in a fire, And it is an object of the present invention to provide a thermal expansion direction induction type fire preventing unit for a door which can provide a sufficient time for induction and expansion into a gap.

It is another object of the present invention to provide a thermal expansion direction induction type fire preventing unit for a door which is capable of inducing a concentrated expansion into a gap so that the heat spreading sheet expands and spreads gradually into a gap between the door and the door frame .

According to an aspect of the present invention, there is provided a thermal expansion direction induction type fire preventing unit for a door,

A rectangular frame disposed in a stepped portion of the door frame positioned at the front of the door in the closed door and the door frame;

A heat expansion sheet disposed on the left side of the frame; And

Supporting means arranged in the frame to support the heat expansion sheet;

, ≪ / RTI >

Wherein the supporting means comprises a first support horizontally connected at a left end of a front surface of the frame to support a front surface of the heated inflation sheet,

And guiding means for providing an induction path for inflating the heat expansion sheet to a gap between the door and the door frame in the event of a fire.

In the thermal expansion direction induction type fireproof unit for a door according to the present invention,

In the event of a fire, there is the greatest effect of greatly improving heat resistance by causing expansion and diffusion of the heated expansion sheet by a gap between the door and the door frame.

1 is a three-dimensional view showing a thermal expansion direction induction type fireproof unit for a door according to a first embodiment of the present invention,
Fig. 2 is a plan sectional view of Fig. 1,
FIG. 3 is a sectional view of a state in which the thermal expansion direction induction type fireproof unit for a door according to the first embodiment of the present invention is in use;
FIG. 4 is a three-dimensional view showing a thermal expansion direction induction type fireproof unit for a door according to a second embodiment of the present invention,
Fig. 5 is a plan sectional view of Fig. 4,
FIG. 6 is a sectional view showing the state of use of the thermal expansion direction induction type fireproof unit for a door according to the second embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

2, the direction of the heat expansion sheet side is referred to as a left portion or the left side and the side of the second closed projection portion is referred to as a right portion or a right side, and the frame side is referred to as a front portion, The head side is designated as a rear portion or rear direction.

1 to 6, in the thermal expansion direction induction type fireproof unit for a door according to the present invention,

A frame 10, a heat expansion sheet 20, a supporting means 30 and a guide means.

Looking at each configuration,

The frame 10

As shown in Figs. 1 and 2,

And a rectangular structure disposed in the stepped portion 2a of the door frame 2 located at the front of the door 1 in the closed door 1 and the door frame 2. [

At this time, it is preferable that the inside of the frame 10 is hollow, and it is preferable that it is a refractory silicone rubber material having a heat deflection temperature (HDT) of 300 ° C or more together with an elastic head 40 to be described later.

The heat-expandable sheet (20)

As shown in Figs. 1 and 2,

Which is disposed on the left side of the frame 10,

And is fixedly coupled to the left side of the frame 10 with an adhesive or the like.

The thermal expansion sheet 20 is made of a graphite material having a thermal deformation temperature of 180 ° C lower than that of the frame 10 and the elastic head 40 and expanding by heat.

As a result, the frame 10 and the supporting means 30 have a higher heat distortion temperature than the heat expansion sheet 20.

Supporting means (30)

For supporting the heat expansion sheet (20) arranged on the frame (10)

A first support 31 horizontally connected at a left end of a front surface of the frame 10 to support a front surface of the heat expansion sheet 20,

A second support 32 connected rearward at an end of the first support 31 and connected to the rear surface of the heat expansion sheet 20 at an acute angle?

.

3 and 6, the stepped portion 2a of the door frame 2 has a flat surface, and the door frame 2 is provided with a wall (not shown) protruding rearward from the right end portion of the step portion 2a 2b are further provided, so that a U-shaped inner space is formed, and the frame 10 is disposed in the inner space.

A first sealing protrusion B1 is formed on the left side of the second support 32 of the supporting means 30 to be pushed toward the door frame 2 when the thermal expansion sheet 20 is inflated by a fire And,

The second seal (3) is pressed against the wall (2b) by the heat expansion sheet (20) which is in contact with the wall (2b) of the door frame (2) The protruding portion B2 is formed.

At least two or more of the first and second sealing protrusions B1 and B2 may be formed at the corresponding formation sites.

And, as a most significant feature of the present invention,

The present invention further includes guiding means for providing an induction path for inflating the heat expansion sheet (20) to a gap between the door (1) and the door frame (2)

As a first embodiment,

1 and 2, the supporting unit 30 is formed between the left side of the frame 10 and the end of the first support 31 when the supporting unit 30 is composed of only the first support 31 And a first opening portion (opening portion) 50A which is opened toward a gap between the door 1 and the door frame 2.

As a second embodiment,

4 and 5, when the supporting means 30 is composed of the first and second supports 31 and 32, it is formed between the left side of the frame 10 and the end of the second support 32 And a second opening 50B which is opened toward a gap between the door 1 and the door frame 2. [

As a result, in the guide means of the first embodiment, the first opening portion 50A is formed in such a manner that when the thermal expansion sheet 20 is deformed and expanded by heat in the event of fire, it is guided and inflated into a gap between the door 1 and the door frame 2 Path.

In addition, in the guide means of the second embodiment, the second opening portion 50B is also formed so that when the thermal expansion sheet 20 is deformed and expanded by heat, it is guided and expanded into a gap between the door 1 and the door frame 2 The second support 32 and the heat expanding sheet 20 are formed at an acute spaced apart space formed at an acute angle (?) At the time of inflation of the heat expanding sheet 20, So that it can be more easily guided to the gap between the door 1 and the door frame 2 than the guide means.

As described above, the thermal expansion sheet 20 having a low thermal deformation temperature during a fire is expanded, and the frame 10 and the elastic head 40 having a thermal deformation temperature higher than that of the thermal expansion sheet 20 The heating expansion sheet 20 can be more easily maintained through the door 50A and the door opening 50B through the structure of the openings 50A and 50B, So that it is possible to induce expansion.

Meanwhile, the thermal expansion direction induction type fireproof unit for a door according to the present invention further includes an elastic head 40,

The elastic head (40)

As shown in Figs. 1 and 2,

A sealing member disposed on the rear surface of the frame 10 to come into contact with the closed door 1,

The left end of the frame 10 is protruded to the left so as to extend from the left side of the frame 10 to the right side of the frame 10, Thereby supporting a part of the rear surface.

The elastic head 40 is brought into contact with the closed door 1 so that the air flow inside and outside the door 1 is blocked when the door 1 is closed and the airtightness against the inside of the door 1, Sound insulation) can be expected.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. And variations are to be construed as falling within the scope of protection of the present invention.

10: frame
20: Heat expansion sheet
30: Supporting means
31: First support
32: Second support
40: elastic head
50A: a first opening
50B: the second opening
B1, B2: First and second sealing projections

Claims (6)

A rectangular frame 10 disposed at the stepped portion 2a of the door frame 2 positioned in front of the door 1 in the closed door 1 and the door frame 2;
A thermal expansion sheet (20) disposed on the left side of the frame (10); And
Supporting means (30) arranged on said frame (10) for supporting said heat expanding sheet (20);
, ≪ / RTI >

The supporting means 30 includes a first support 31 horizontally connected at a left end of a front surface of the frame 10 to support a front surface of the heat expansion sheet 20, And a second support 32 connected rearward at an end of the heat expansion sheet 20 and connected to the left side of the heat expansion sheet 20 at an acute angle?
And a second opening 50B which is formed between the left side of the frame 10 and the end of the second support 32 and is opened toward the gap between the door 1 and the door frame 2, Further comprising guiding means for providing an induction path so that the inflated seat (20) is inflated into a gap between the door (1) and the door frame (2).
delete delete The method according to claim 1,
A first sealing protrusion B1 is formed on the left side of the second support 32 of the supporting means 30 so as to be pushed toward the door frame 2 when the heat expansion sheet 20 is inflated by fire However,
The frame 2 contacts the wall 2b provided on the step portion 2a of the door frame 2 and is exposed to the outside of the wall 2b when the heat expansion sheet 20 expands due to fire, And a second hermetically sealed protrusion (B2) that is pushed and pushed to the side of the door.
The method according to claim 1 or 4,
Further comprising an elastic head (40) placed on the rear surface of the frame (10) and brought into contact with the closed door (1)
And the left end of the elastic head (40) supports a rear portion of the heat-expandable sheet (20).
6. The method of claim 5,
The frame (10) and the supporting means (30) are made of a refractory silicone rubber material,
The heat-expandable sheet 20 is made of graphite,
Wherein the frame (10) and the supporting means (30) have a higher heat deflection temperature (HDT) than the heat expansion sheet (20).

Images