KR101936903B1 - an assembly of safety door - Google Patents

Abstract

According to the present invention, a fireproof door assembly comprises: a front surface panel member; a rear surface panel member; first and second coupling units allowing an upper side and a lower side of the front surface panel member and the rear surface panel member to be coupled to each other; third and fourth coupling units coupling a left side unit and a right side unit of the front surface panel member and the rear surface panel member; and an insulating material unit installed in an inner space unit divided by the front surface panel member and the rear surface panel member which are coupled by the first, second, third, and fourth coupling units.

Description

An insulation unit and an assembly of safety door using the same

More particularly, the present invention relates to a fire door of the present invention, and more particularly, to a sealing structure for a door frame and a door, and a heat insulating material supporting member for supporting a heat insulating material installed inside the fire door, Unit and a fire door using the same.

In general, various buildings are regulated to use nonflammable materials, quasi fire-retardant materials and flame retardants as finishing materials and interior materials used in buildings under the current Building Act and Fire Prevention Law. In order to prevent fire spread and protect people, And fire doors that can withstand at least thirty minutes or one hour in the event of a fire are installed in the entrance through which they pass.

Therefore, interior materials to be inserted into fire doors of various buildings are required to cut off heat and flames, to support loads for a long period, to maintain the strength against impact and fire fighting, to maintain the performance of the members, and to be nonflammable.

A fire door for a building to satisfy such a function is disclosed in Korean Patent Registration No. 0472932. The fireproof door is designed to form a fire-proof and heat-insulating foam layer as an inner core to improve fire resistance as well as insulation and sound insulation. The fire-resistant and heat-insulating foam layer used as an inner core is made of inorganic fibers such as glass fiber, A latex-based water-soluble binder is mixed and foamed, or a nitrogen foam is foam-molded.

However, when the inorganic fibers are mixed with the water-soluble binder, the inorganic fibers tend to be entangled with each other and the mixing operation is very complicated. Further, due to the entangled inorganic fibers, the inorganic fibers can not be sufficiently expanded. It is difficult to satisfy even the basic functions required for a fire door such as a fireproof door, and manufacturing costs are increased due to a complicated mixing process during manufacturing and a foaming process requiring heating.

 Korean Patent No. 0907602 discloses a technical structure for inserting urethane or glass wool insulation into front door and door frame to prevent intrusion and condensation as well as to maintain indoor insulation. Urethane is a flammable substance and toxic gas is generated in case of fire, so it is not suitable for fire protection.

 In addition, glass wool is a non-combustible material, but when it comes into contact with skin during handling, it causes itching, which is detrimental to health and is vulnerable to moisture, resulting in deterioration of heat insulation efficiency. And the organic materials in the binder contained in the glass wool are decomposed in the case of fire and generate toxic gas.

On the other hand, the fire door, which is disclosed in Korean Utility Model Registration No. 20-0311075, has an installation groove formed in the periphery of the fire door to fix the frame to the inside of the four sides of the fire door, and a wind- The end portions of both metal plates of the main body of the fire door are fitted into the fitting grooves on both sides of the frame body and the frame body is prevented from being separated by a bolt fastened to the inner frame through the center of the frame body will be.

Korean Patent Registration No. 10-0920530 discloses a fire door, and Patent Registration No. 10-0819766 discloses a fire door installed in an apartment or a shopping mall to protect residents from being blocked from outside or from a fire.

The posted fire door has a fitting groove formed on both sides of its rear side, a first fitting groove is formed along the circumference of the front side edge, an inner fire door is formed so as to mount a buffer member on the first binding groove, An external fire door is formed at a position corresponding to the fitting groove formed in the inner fire door, and the fitting protrusion is fitted to the fitting groove and is then pushed and fixed.

Korea Patent No. 0907602 Korean Patent Registration No. 10-0920530

It is an object of the present invention to improve the heat and fire resistance required for a fire door and to improve the supporting force of the heat insulator installed therein and to minimize the thermal expansion of the fire door during the heat shielding process, Which is capable of preventing a fire.

Another object of the present invention is to improve the sealing property between the door frame and the fire door to improve the barrier property to prevent the inflow of heat and smoke and to open the fire door to the steel material using a tool such as a ladder And a fire door assembly using the same.

Another object of the present invention is to provide a heat insulating material unit capable of reducing toxic gas generated from a heat insulating material when a fire occurs, and a fire door using the same.

According to an aspect of the present invention, there is provided a fire door panel assembly including a front panel member, a rear panel member, first and second coupling units coupling upper and lower sides of the front panel member and the rear panel member, And a third and a fourth coupling unit for coupling the left side and the right side of the member and the rear panel member, respectively,

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And a heat insulating unit installed in an inner space defined by the front panel member and the rear panel member coupled by the first, second, third and fourth coupling units.

In the present invention, the heat insulating material unit may include a first heat insulating member disposed at a center side of the internal space portion, and a second heat insulating member disposed outside the first heat insulating member for filtering gases generated from the first heat insulating member in a fire And a heat insulating member.

In the present invention, the first heat insulating member is made of a PF board, and the second heat insulating member is made of ceragallool (product name produced by KCS (Korea) Co., Ltd.).

The first and second coupling units each have a first bent portion bent from the upper and lower edges of the front panel member toward the rear panel member, a second bent portion inward from the first bent portion, and a second bent portion extending from the second bent portion toward the rear panel side A first engaging portion having a third bent portion bent,

A fourth bent portion bent from the upper and lower edges of the rear panel member toward the front panel member side, a fifth bent portion bent inwardly from the fourth bent portion, and a second bent portion bent from the fifth bent portion toward the front panel member side, A second engaging portion provided between the third bent portion and the sixth bent portion, the plate member being bent, and the third bent portion and the sixth bent portion being formed by a fastening member And a gasket member which is supported between the engaging member and the fifth and sixth bent portions and protrudes outward from the fifth bent portion of the rear panel member and is brought into close contact with the door frame.

And a pad provided between the third bent portion and the engaging member.

The fourth coupling unit includes a first side bending portion extending from an edge of one side surface to a rear panel member side and forming a side wall of a hinge portion of the door and bent at an end portion to form an insertion portion, And a second side bent portion bent from one side of the corresponding rear panel member toward the front panel member side and having a coupling piece inserted into the insertion portion.

The fireproof door assembly of the present invention can improve the sealing property between the door frame and the fire door to increase the barrier property to prevent the inflow of heat and smoke and to prevent the fire door from being opened to the steel material by using a tool such as a ladder There is this that can prevent theft. In addition, since the heat insulating unit installed inside the fire door is composed of the first and second heat insulating members, the toxic gas generated from the first heat insulating member can be filtered by the second heat insulating member, so that the generation of toxic gas can be minimized.

Further, heat generation from the heat insulating unit can be reduced, thermal deformation of the fire door can be prevented, and the interval between the front panel member and the rear panel member can be prevented from widening. Also, since the front panel member and the rear panel member can be fabricated independently by manufacturing the fire door, the productivity can be improved by manufacturing the fire door.

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1 is a perspective view of a fire door assembly according to the present invention,
2 is an exploded perspective view of the fire-
3 is a partially cutaway perspective view of a fire door of a fire door.
4 is a vertical sectional view of a fire door according to the present invention,
5 is a cross-sectional view showing a first coupling unit according to the present invention,
6 is a cross-sectional view showing another embodiment of the first coupling unit,
7 is a horizontal sectional view of the fire door according to the present invention,
8 is a cross-sectional view illustrating the third coupling unit,
9 is a sectional view showing another embodiment of the third coupling unit,
10 is a cross-sectional view illustrating the fourth coupling unit.

1 to 3 show an embodiment of a fire door panel assembly according to the present invention.

Referring to FIG. 1, a fire door panel assembly 10 according to the present invention is installed in various buildings such as a residential house, a house, a shopping mall, and includes a door frame 20 and a hinge unit 1 And a fire door 30 for opening and closing the opening 20a defined by the door frame and preventing diffusion of combustion gases (smoke) and heat when a fire occurs.

The door frame 20 is fixed to the frame or the wall of the building and has an inner circumferential surface 21 corresponding to the outer circumferential surface side of the fire door and a protruding portion 22 formed adjacent to the inner circumferential surface of the door, do. The door frame 20 may be manufactured by bending an iron plate, but the present invention is not limited thereto. The door frame 20 is not limited to the above-described embodiment and may vary depending on the shape of the door 30.

The fire door 30 rotatably installed on the door frame 20 by means of the hinge unit 1 has a front panel member 31 and a rear panel member 35 as shown in FIGS. 1, 2, 4 and 5, The first and second coupling units 40 and 50 connect the upper and lower sides of the front panel member 31 and the rear panel member 31 to each other. 35 by the third and fourth coupling units 60, 70 for coupling the left side and the right side, respectively. And is installed in the inner space defined by the front panel member 31 and the rear panel member 35 coupled by the first, second, third, and fourth coupling units 40, 50, 60, And a heat insulation unit (100).

The fire door according to the present invention having the above-described structure will be described in detail as follows.

The front panel member 31 and the rear panel member 35 of the fire door 30 are made of a metal plate having a predetermined thickness. The first and second coupling units 40 and 50 that connect the upper and lower sides of the front panel member 31 made of the metal plate and the upper and lower sides of the rear panel member 35 have substantially the same configuration.

The first and second coupling units 40 and 50 include first bending portions 41 and 51 bent from the upper and lower edges of the front panel member 31 toward the rear panel member 35, A second bending portion 42 and 52 which are bent inward (downward) from the first and second bending portions 41 and 51 and come into contact with the edges of the door frame, And the first engaging portions 45 and 55 having the third bent portions 43 and 53 that are bent in the horizontal direction in the lateral direction. The first and second coupling units 40 and 50 include fourth bent portions 46 and 56 bent from the upper and lower edges of the rear panel member 35 toward the front panel member 31, A fifth folded portion 47 and a fifth folded portion 47 that are bent from the bent portions 46 and 56 inwardly or in parallel to the rear panel member 35 and the fifth bent portions 47 and 57 that extend from the fifth bent portions 47 and 57 to the front panel member And a second engaging portion 49 and 59 having a sixth bent portion 48 and 58 bent toward the first bent portion 43 and the third bent portion 43.

 Between the third and fourth bent portions 43 and 53 and the sixth bent portions 48 and 58 is provided a coupling member 81 formed by bending a plate member. Are joined by the bending portions 43 and 53 and the sixth bending portions 48 and 58 and the fastening member 82, respectively. Here, a pad 83 is provided between the third bent portions 43 and 53 and the engaging member 81. The pad 83 may be made of ceramic, but is not limited thereto.

The horizontal door frame 20 at the portion of the protrusion 22 of the door frame corresponding to the engaging member 81 and the fourth bent portions 46 and 56, that is, a portion corresponding to the edge of the rear panel member 35, A horizontal inlet portion 23 is defined by the protruding portion 22 and a first sealing member 23 for blocking the gap between the edge of the rear panel member 35 and the door frame is formed in the horizontal inlet portion 23, (Not shown).

As shown in FIG. 5, the first sealing member 84 may be formed of a first gasket having a space portion 84a formed therein. The first sealing member 84 may include a fifth bent portion 47, 57, And a gasket member 85 protruding from the end of the third bent portions 43 and 53 to the inner surface side of the door frame 20 from the side. The gasket member 85 may be made of a flexible rubber material or a resin material. The edge of the front panel member 31 extends in the plane direction of the front panel member 31 from the edge of the rear panel member 35. [

 7 and 8, the third coupling unit 60, which couples one side end (the end on the hinge unit side) of the front panel member 31 and the rear panel member 35, A first side bending portion 61 extending from the front panel member 31 toward the rear panel member 35 to form a side wall of the hinge portion of the door and bent to form an insertion portion 62 at an end thereof, And a second side bend portion 64 bent toward the front panel member 31 from one side of the rear panel member 35 corresponding to the first side panel member 35 and having a coupling piece 63 inserted into the insertion portion 62. A second sealing member 66 for blocking a gap between the edge of the rear panel member 35 and the door frame is installed on the door frame 20 in the vertical direction.

The second sealing member 66 is provided on the protruding portion 22 corresponding to the second side bent portion 64, that is, the vertical door frame 20 corresponding to the edge of the rear panel member 35, 25 are formed in the vertical receiving portion 26. The vertical receiving portion 26 is provided to block the gap between the edge of the rear panel member 35 and the door frame. The second sealing member 66 may be formed of a gasket having at least one space portion in the longitudinal direction.

9, the second sealing member 66 is supported by the engaging piece 63 coupled to the inserting portion 62 to be led out to the outside, The gap can be sealed.

As shown in FIG. 10, the fourth coupling unit 70 is formed with an insertion bend portion 71 in which an edge of the other side of the front panel member 31 (the side on which the handle is provided) is bent inward, A fourth side bending portion 72 bent toward the front panel member 31 at an edge of the rear panel member 35 to form a side portion of the fire door, and a fourth side bending portion 72 extending outward from the fourth side bending portion 72, And an insertion fitting portion 73 which is fitted in the bent portion 71. [

The space between the front panel member 31 and the rear panel member 35 coupled by the first, second, third, and fourth coupling portions 40, 50, 60, The first heat insulating member 110 is installed at a central portion of the installation space and the first heat insulating member 110 is wrapped around the first heat insulating member 110 to filter the gas generated from the first heat insulating member 110 The second heat insulating member 120 is provided. The first heat insulating member 110 may be made of a PF board and the second heat insulating member 120 is made of cerak wool (a product name produced by KCS (Korea)). Cerakwool is an insulation material used in ultra-high temperature (around 1000 ℃) environment which is well above 350 ℃ ~ 650 ℃, which can withstand general inorganic insulation (glasswool, mineral wool, etc.).

The front panel member 31 and the rear panel member 35 are separately manufactured and the first, second, third, and fourth coupling units 40, 50, and 60 70, it is possible to manufacture the fire door 30, so that the production cost due to the manufacture of the fire door can be reduced, and the productivity of the fire door can be improved.

The heat insulating material unit 100 is provided between the front panel member 31 and the rear panel member 35 and the insertion portion 62 of the first side bending portion 61 constituting the third coupling unit 60 The engaging pieces 63 of the two side bent portions 64 are inserted and the insertion bent portions 71 provided at the other side edges (the side edges of the handle fitting portions) of the front panel member 31 of the fourth combining unit 70 (Not shown) of the rear panel member 35 is inserted into and engaged with the second side surface bent portion 72 of the rear panel member 35. [

The third bent portions 63 and 73 and the sixth bent portions 68 and 78 of the first and second coupling members 40 and 50 are engaged with the coupling member 81 and the coupling member 82 So that the combination of the fire doors is completed. The assembly of the fire door as described above does not require welding or bolting as in the prior art, so that the productivity can be improved.

In addition, when the fire door is heated when a fire occurs, gas is generated from the first heat insulating member 110, which is installed inside the fire door, and the generated gas is heated by the second heat insulating member 120 And can be filtered to suppress emission to the outside.

Then, the fireproof doors according to the present invention were inspected by Korea Institute of Construction & Living Environment Test and tested for airtightness and liquefied flow rate (w / ㎡K).

For the test, the door frame width was 100mm, the fire door was 1000mm x 2100mm, the thickness of the front panel member and the back panel member of the fire door was 0.7t, and the thickness of the frame was 1.6t. A steel plate of 1.6t was used.

The test equipment was 3.6 x 3.0 x 3.6 (W x D x H) for the warm room (m) and the low temperature room (m), 2.5 x 0.7 x 2.0 (W x D x H) Opening (m) 2.0 x 0.3 x 2.0) (W x D x H) was used.

The setting conditions of the anti-greenhouse and the heating box were set at 201 ° C for 50% RH and for the low temperature room setting condition, the air flow rate was set at 0 ° C at an air flow rate of 1.2 m / s.

As a result of the experiment under the above conditions, it was found that the airtightness was 0.43 and the heat transfer coefficient was 1.163 4 w / ㎡.K.

In addition, since the bent portion of the fire door according to the present invention is in close contact with the front surface of the door frame 20 of the fire door except for the hinge portion, it is possible to fundamentally prevent the insertion of tools such as a strap between the door openings. Accordingly, it is possible to fundamentally prevent the conventional problems of damaging the doors and opening the doors, and further, to maximize the anti-theft effect.

As described above, the fire door assembly according to the present invention can be manufactured by assembling a fire door, thereby improving the productivity and preventing an abnormal deformation of the fire door.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

31, a front panel member
35,
40; a first coupling unit 50; The second coupling unit
60, a third coupling unit 70, a fourth coupling unit
100; insulation unit

Claims (8)

The first and second coupling units 40 and 50 for coupling the upper and lower sides of the front panel member 31, the rear panel member 35, the front panel member 31, And third and fourth coupling units 60 and 70 for coupling the left and right sides of the front panel member 31 and the rear panel member 35, And a heat insulating material unit 100 installed in an inner space portion partitioned by the front panel member 31 and the rear panel member 35 joined by the four coupling units 40, 50, 60 and 70 ,
The first and second coupling units 40 and 50 include first bending portions 41 and 51 bent from the upper and lower edges of the front panel member 31 toward the rear panel member 35, A second bending portion 42 and 52 and a third bending portion 43 bent from the second bending portion 42 and 52 toward the rear panel member 35 inward from the first and second portions 41 and 51 53, and a second engaging portion 45,
A fourth bent portion 46 and 56 bent from the upper and lower edges of the rear panel member 35 toward the front panel member 31 and a fourth bent portion 46 and 56 bent inwardly from the fourth bent portions 46 and 56, And a sixth bending portion 47 which is bent toward the front panel member 31 from the fifth bending portions 47 and 57 and located on the lower surface side of the third bending portions 43 and 53, A second engaging portion 49 and 59 provided with the first bent portions 48 and 58 and a second engaging portion 49 provided between the third bent portions 43 and 53 and the sixth bent portions 48 and 58, An engaging member 81 which is bent and engaged with the third bending portions 43 and 53 and the sixth bending portions 48 and 58 by a fastening member 82,
There is formed a horizontal inlet portion 23 which is defined by the protruding portion 22 of the door frame corresponding to the edge of the rear panel member 35 at the formation portion of the fourth bent portions 46 and 56, A first sealing member 84 for blocking the gap between the edge of the rear panel member 35 and the door frame,
The third coupling unit 60 extends from one side edge of the front panel 31 to the side of the rear panel member 35 to form a hinge side wall of the door, The front panel member 31 is folded toward one side of the front panel member 31 from one side of the rear panel member 35 corresponding to the one side surface of the front panel member 31, A second side bending portion 64 having a piece 63 and a joint portion 63 that is inserted into the insertion portion 62 and protruded outward so that a gap between the inner peripheral surface of the door frame 20 and the side surface of the door And a second sealing member (66) for sealing the first sealing member
The fourth coupling unit includes an insertion bend portion 71 in which the other edge of the front panel member 31 is inwardly bent and a rear edge portion of the rear panel member 35 is bent toward the front panel member 31, And an insertion coupling portion 73 extending outward from the fourth side bending portion 72 and fitted in the insertion bending portion 71,
A pad 83 is provided between the third bent portions 43 and 53 and the engaging member,
The heat insulating material unit 100 includes a first heat insulating member 110 installed in an inner space and a second heat insulating member 110 surrounding the first heat insulating member 110 to filter the gas generated from the first heat insulating member 110, And a second heat insulating member (120) for heat insulating the first heat insulating member. delete The method according to claim 1,
And the second heat insulating member is made of ceramics.








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