KR200423862Y1 - Fire door - Google Patents

Abstract

The present invention is a fire door for use to open and close the entrance of a building, especially the light weight of the door and the beauty of the exterior, it prevents direct flame and heat transfer in the event of a fire, and also poisonous cutlet and flame moves by the gap between the door and the door frame. It relates to a fire door for blocking the thing.

The present invention has a flame retardant outer panel that forms the front and rear of the door, and a non-flammable inner body composed of a plurality of horizontal cores and vertical cores having a reinforcing structure between the outer panels and forming upper, lower, left, and right sides of the door. A frame, a heating foam body inserted into the upper, lower, left, and right outer surfaces of the inner frame, a non-flammable shielding film which divides the space between the horizontal core and the vertical core of the non-flammable inner frame back and forth and reinforces the structure; It provides a fire door for the non-combustible filler is filled in the space formed between the horizontal core material and the vertical core material and the non-combustible shielding film of the non-combustible inner frame.

The front panel and the rear surface of the outer panel is finished with a flame retardant exterior sheet or decorative sheet.

Heated foam, nonflammable shield, nonflammable inner frame, horizontal core, vertical core, flame retardant outer panel.

Description

Fire prevention door

1 is an external perspective view of the fire door for the present invention.

2 is a cross-sectional view taken along line A-A of FIG.

Figure 3 is a perspective view showing the inner frame of the fire door for the present invention.

Figure 4 is a front view showing a state in which the fire door for fire protection of the present invention is installed on the door frame.

***** Explanation of symbols for main parts of drawing *****

100: fire door 110-a, 110-b: outer panel 111: flame-retardant exterior sheet

120: non-flammable inner frame 121: horizontal core 122: vertical core

130: non-flammable shielding film 140: non-flammable filler 150: heat generating foam

The present invention is a fire door for use to open and close the entrance of the building, in particular, in the event of a fire to prevent direct flame and heat transfer, and also to the fire door to block the toxic cutlet and flames from the gap between the door and the door frame. It is about.

In general, in buildings such as buildings, apartments, and factories, a wall is installed as an inner wall structure and an outer wall structure that partitions an interior space, and a door supported by the wall is installed at the entrance and the entrance.

Here, the doors installed at the entrances and entrances basically have a structural strength of more than a predetermined number to prevent frequent opening and closing and external intruders, and also have a fire protection property to prevent the spread of flame to other places in case of fire.

The conventional fire door having the above-described characteristics is provided with a front plate and a back plate at predetermined intervals, and fixedly installed guide plates on each side of the front and back plates, the pattern between the front and back plates and the guide plate The formed front and rear face plates are provided, and the inside and front plates are filled with a heat insulating material.

However, such a conventional fire door structure has the advantage of using a general wood or resin exterior plate beautiful appearance and excellent texture, but it has a problem of acting as a flammable material in the fire to reduce the fire properties.

In this regard, recently, the social demand for strengthening the fire resistance regulation in consideration of the danger of fire has been increasing, and there is a legislation that regulates it.

In addition, the conventional fire door is difficult to manufacture due to the complex structure of the front and back plates, guides, heat insulating materials and exterior plates, in particular by using ordinary rock wool as the heat insulating material is easily twisted by deformation due to thermal expansion during fire, that is, due to heat It had a weak structural strength.

And, in case of fire, the flame and poisonous gas are leaked to the outside through the gap between the fire door and the door frame, and the fire easily spreads.

In addition, the fire door is also formed by using an iron door, but this is a production cost is high and the weight is very high, there was a problem in that the use is limited.

The present invention has been devised in view of the disadvantages of the conventional fire doors, and prevents direct flame and heat transfer in the event of a fire, and also a fire door for blocking the poisonous cutlet and flames from the gap between the door and the door frame. It aims to provide.

In addition, an object of the present invention is to provide a fire door for a structure that prevents heat deformation due to heat generated in a fire.

In order to achieve the above object, the present invention provides a flame retardant outer panel that forms the front / rear of the door, and a plurality of horizontal cores that form the upper, lower, left, and right sides of the door with a reinforcing structure between the outer panels. And a nonflammable inner frame consisting of a vertical core and a heating foam inserted into the outer surface of the upper, lower, left and right sides of the inner frame, and the space between the horizontal core and the vertical core of the nonflammable inner frame. It provides a fireproof door made of a non-combustible shielding film and a non-combustible filler filled in the space formed between the horizontal core and the vertical core and the non-combustible shielding film of the non-combustible inner frame.

The front panel and the rear surface of the outer panel is finished with a flame retardant exterior sheet or decorative sheet.

If described in detail with reference to Figures 1, 2, 3, 4 of the configuration and working state of the correct embodiment of the present invention.

Figure 1 is an external perspective view of the fire door according to the present invention, Figure 2 is a cross-sectional view AA of Figure 1, Figure 3 is a perspective view showing the inner frame of the fire door of the present invention, Figure 4 is a fire door of the present invention. It is a front view which shows the state installed in the door frame.

Looking at the correct embodiment of the present invention with reference to Figures 1, 2, 3, the flame-retardant outer panel 110 to form the front / rear (110-a, 110-b) of the door, and the outer panel 110 Non-combustible inner frame 120 and a plurality of horizontal core member 121 and the vertical core member 122 having an internal reinforcement structure between the upper and lower, left, right side of the door and the inner frame 120, The space between the horizontal foam member 121 and the vertical core member 122 of the heating foam 150 inserted into the outer surface of the upper, lower, left, and right side and the non-combustible inner frame 120 is separated and cut back and forth, and the structure thereof. Fire-resistant made of a non-combustible shielding film 130 to reinforce, and a non-combustible filler 140 filled in the space formed between the horizontal core material 121 and the vertical core material 122 and the non-combustible shielding film 130 of the non-combustible inner frame 120. It provides a door (100).

Surfaces of the front and rear surfaces 110-a and 110-b of the outer panel 110 are finished with decorative sheets or veneer sheets, which are flame retardant exterior sheets 111.

In more detail, the flame-retardant outer panel 110, the front and rear (110-a, 110-b) is the same square panel shape, respectively, flame-retardant flame-retardant medium-density fiber board (MDF) and high-density fiber board (HDF) is used, but magnesium oxide panels are recommended for fire doors used for entrances where there are few people.

In addition, the outer surfaces of the front (110-a) and the rear (110-b) of the flame-retardant outer panel 110 is coated with a teco sheet and veneer sheet of the flame-retardant outer sheet (111).

The non-combustible inner frame 120 is a rectangular cross-sectional core material of magnesium oxide material, as shown in FIG. 3, and forms a rectangular frame having the size of the outer panel 110 by a plurality of horizontal core materials 121 and vertical core materials 122. do.

In addition, the non-combustible shielding film 130 is a plate-shaped body of magnesium oxide, as shown in Figure 2, formed between the horizontal core material 121 and the vertical core material 122 of the non-flammable inner frame 120 formed of the rectangular frame Block the space. That is, the shielding film 130 is installed in the non-combustible inner frame 120 by inserting the upper and lower ends into the groove formed in the center of the horizontal core member 121 so as to divide each space in the rectangular frame back and forth.

Therefore, the vertical core material 122 is installed in the horizontal core material 121 as described above, and then vertically coupled to the horizontal core material 121 by using a tacker pin or nail to form a non-flammable inner frame. The frame 120 is formed.

The non-flammable filler 140 is preferably made of ceramic wool and filled in the front / rear space of the non-flammable shielding film 130, and the shape is formed in a honeycomb shape, that is, a honeycomb shape, as well as heat dissipation, as well as inside the door. Improved structural strength, sound insulation and insulation effect can be expected.

In addition, the outer surface of the upper, lower, left, and right sides of the square frame, which is the non-combustible frame 120, is provided with a heating foam 150 by continuously forming grooves as shown in FIGS.

At this time, the heating foam 150 is a foamed flame retardant sealant, and maintains its original state at room temperature and 150 ℃ to 290 ℃ is the initial foaming temperature and foaming, expansion rate is 2 to 10 times or more.

As described above, in the state in which the non-combustible inner film 120 is provided with the non-combustible shielding film 130, the non-combustible filler 140, and the heating foam 150, the front and back of the non-combustible inner frame 120 using a tacker pin and a nail. Attach the flame retardant outer panel (110).

The fire door 100 according to the present invention formed as described above is installed in the door frame 200 by using a hinge after installing the door lock as shown in FIG. First, the fire spreading to the outside is blocked for some time, after which the outer panel 110 is burned, and secondly, the fire is prevented from spreading by the shielding film 130.

In addition, in addition to the above-described outer panel 110 and the shielding film 130, the heating foam 150 is expanded by 10 to 15 times by the heat of the high temperature (150 ℃ to 290 ℃) generated in the fire, and then introduced at 760 ℃ Even if it remains as a solid carbide, preventing the gap "C" between the fire door 100 and the door frame 200 of the present invention, preventing the flame and toxic gas flow through the gap "C". Done.

Hereinafter, Tables 1 and 2 show the fire protection test results (Korea Institute of Construction Technology) of the fire protection door 100 of the present invention.

First, the fire door 100 according to the present invention used for the test under test conditions is substantially 1, the size of the door 100 in the form of being manufactured, sold; 944 × 2145 × 41 (mm), 2) size of outer panel 110-a, 110-b; 944 × 2145 × 4.5 (mm), 3) size of inner frames 121 and 122; □ 32 × 32 (mm), 4) thickness of shielding film 130; t = 6 mm, 5) Fill thickness of filler 140; 2 × t = 26 mm, 6) thickness of the heating foam; t = 1.5 ㎜, and the present invention manufactured in this manner is substantially one of the front surface 110a and rear surface 110-b of the outer panel 110 under the same conditions as that installed in the door frame of the building, The test is carried out for 30 minutes at high temperature with other flames.

Under these test conditions, as shown in Table 1, the internal temperature of the furnace (actual funace temp: deg ℃) including one side of the outer panel to which the flame is applied in the present invention is from 39.7 ℃ to 0 ~ 30 minutes It can be seen that it gradually rises to 836.8 ° C.

Table 2 shows the criteria of the gaps and lengths of the gaps between the doors and the door frames, including the cracked part of the doors due to heat deformation after the fire test, and the fire / fire according to the continuous occurrence time of the fires of the doors. By indicating whether or not the test was passed, it can be seen that all of the fire flow extinguishing methods (fire prevention effectiveness for 30 minutes) were passed in this regard.

Table 1

* Temperature measurement table in furnace

Table 2

* Non-heat shielding measurement result

Test result            Performance standard      Test result  Performance Fireproof test Not penetrate 150mm after 6mm crack gauge penetration, 25mm crack gauge should not penetrate Not penetrated 30 minutes 30 minutes No flames lasting more than 10 seconds Does not occur 30 minutes

As described above, the fire door according to the present invention not only prevents the fire from spreading through the doorway in the event of a fire, but also forms an outer panel with a fiber board to maintain the beauty of the exterior, as well as the inner shielding film. It has a complete fire prevention effect by the filler.

In addition, the shielding film, together with the inner frame improves the structural strength of the door to resist thermal deformation due to heat in the event of fire.

In addition, the present invention has an effect that can completely block the leakage of flames and toxic gas by sealing the gap between the door and the door frame in the event of fire.

Claims (4)

Flame retardant outer panel 110 to form the front and rear (110-a, 110-b) of the door, A non-combustible inner frame 120 having a plurality of horizontal cores 121 and vertical cores 122 having inner reinforcing structures between the outer panels 110 and forming upper, lower, left and right sides of the door; Heating foam 150 is inserted into the upper, lower, left, right outer surface of the inner frame 120, A non-combustible shielding film 130 which divides and blocks the space between the horizontal core 121 and the vertical core 122 of the non-combustible inner frame 120 back and forth and reinforces the structure; The fire door 100, characterized in that the non-combustible filler 140 is filled in the space formed between the horizontal core material 121 and the vertical core material 122 and the non-combustible shielding film 130 of the non-combustible inner frame (120). The method of claim 1, The outer panel 110 uses a medium density fiber board (MDF), a high density fiber board (HDF), and a magnesium oxide panel, and on the surface of the front / rear surfaces 110-a and 110-b, the decor is a flame retardant exterior sheet 111. Fire door 100, characterized in that to apply a sheet or veneer sheet. The method of claim 1, The non-combustible inner frame 120 and the non-combustible shielding film 130 is a fire door (100), characterized in that formed of magnesium oxide material. The method of claim 1, The non-combustible filler 140 uses a ceramic wool and its shape is formed in a honeycomb shape, the door for fire protection (100).

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