KR20180022334A - a fire door having complex function - Google Patents

Abstract

The present invention relates to a fire door having a complex function and a door frame for a fire door. The fire door is installed to be opened and closed on an entrance of a luxurious villa or the like, and has insulation and fireproofing functions. According to an embodiment of the present invention, the fire door having a complex function is mounted to be opened and closed on a door frame installed on an entrance of a building, and comprises: a box-shaped first door leaf which forms a front part of the fire door and wraps and supports a built-in insulation pad with a metal material; a second door leaf which includes an inner frame including a first frame for supporting the both side surfaces and rear edge of the first door leaf and a second frame extended from the first frame to secure a space in the rear of the first door leaf, includes an insulation material embedded in the inner frame, and is mounted to the rear of the first door leaf; a refractory material which is mounted on the inner surface of the second frame of the inner frame; and a finishing material which is mounted between the first frame and the both side surfaces and rear edge of the first door leaf.

Description

A fire door having complex function < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire door, and more particularly, to a fire door and a door frame for a fire door having a combined function that can be opened and closed at an entrance of a high-class villa or the like.

Currently, construction and fire protection regulations require fireproof and semi-fireproof and flame retardant materials to be used for interior finishes and interior materials used in buildings.

That is, in order to prevent fire spread and protect people's life when a fire occurs in a building, fireproof compartments of a certain size or larger are to be made, and the door through which fireproof doors (an inner frame is welded between a pair of plates made of iron plates The door is fixed in one piece and the insulation is interposed between the plates) so that the material can withstand fire for 30 minutes or 1 hour.

As shown in FIG. 1, the door frames for fire doors according to the prior art

One end of the plate member 10 is folded so as to be stepped to form a protrusion 20 of a predetermined length and the end of the protrusion 20 is bent to support one surface of the sealing member 60, And one end of the insertion portion 30 is bent to be attached to the side surface portion 40 which supports the side surface of the fire door 2 so as to protrude from the protrusion portion 20 And the end portion of the side portion 40 is formed by the fixing portion 50 which is bent and installed on the wall surface.

In the door frame 1 for a fire door, an insertion groove 21 is formed in the protrusion 20 so that a sealing member 60 is inserted and the other side is bent and installed on the wall surface 3 to mount the fire door 2 on the wall surface .

In the conventional door frame for a fire door, a low temperature outside is transmitted to the inside of the door frame of the room in the winter season, and a temperature difference is generated between a portion of the door frame located in the room and a portion of the door frame positioned outdoors.

As a result, a condensation phenomenon in which a water droplet forms on the frame of a door frame in a room is generated, water droplets generated by the condensation phenomenon spread around the frame frame to damage the wallpaper, Problems arise.

Also, when outdoor air is delivered to the room, there is a problem that the cooling and heating efficiency of the room is lowered and the cooling and heating costs are increased.

Although not shown in the drawings, when the heat insulating material is attached to the inner frame of the fireproof door, the heat insulating material having a different coefficient of linear expansion is peeled off from the fire door due to the adhesive being applied and fixed, resulting in deterioration in wear resistance and durability.

A door frame for fire doors and fire doors is posted on the Patent Application No. 2008-0002034.

The embodiment of the present invention improves the clearance structure between the fire door and the frame and enhances the strength of the fire door to improve the crime prevention performance and prevent the condensation phenomenon in the winter season and to prevent the noise, A door frame for a fire door and a door frame for a fire door.

The embodiments of the present invention relate to a door frame for a fire door and a door frame having a multiple function that prevents a joint portion from being generated by folding the door frame frame several times and molding the door frame into a single body.

The embodiment of the present disclosure is characterized in that the outer surface of the fire door is smooth in appearance and in appearance and is not corroded by the external environmental factors and is not deteriorated in the appearance of the finishing material, And door frame frames for fire doors.

The embodiments of the present disclosure are directed to a fire door having a composite function that can prevent peeling of a finish material having a different coefficient of linear expansion from a fire door when the finish material is fixed to the inner frame by an adhesive and riveting, It is related to the door frames for fire doors.

The multi-function fire door according to the embodiment of the present invention

1. A fire door which is openably and closably mounted on a door frame provided at an entrance of a building, comprising:

A box-shaped first door that forms a front portion of the fire door and surrounds the built-in heat-insulating pad with a metal material;

A first frame forming a rear portion of the fire door, a first frame supporting both side and rear edges of the first door, and a second frame extending from the first frame to secure a space behind the first door, A second door which is installed on the rear side of the first door with a heat insulating material embedded in the inner frame;

A refractory material mounted on an inner side surface of the second frame of the inner frame;

And a finishing material mounted between the first frame and the opposite side edges and the rear edges of the first door.

The door frame frame for a door with multiple functions according to an embodiment of the present invention

A door frame for a fire door, comprising the fire door according to any one of claims 1 to 5,

A first folded portion spaced apart from a side surface of the first door when the fire door is closed and closely adhered to the airtight pad; a condensation hole formed to extend from the first bent portion to prevent condensation due to a temperature difference between indoor and outdoor A third bent portion bent in a stepped manner to form a receiving groove formed in the second bent portion and having a protrusion formed on the second door side; a fourth bent portion extending downward from the protrusion; A frame comprising an opening fixed to the wall surface of the building;

A heat insulating material embedded in the frame;

And a hermetic member mounted on the receiving groove to block the condensation piercing and prevent outside air from entering the inside of the building.

The embodiment of the present invention configured as described above has the following advantages.

Improvement of clearance structure between fire door and frame frame and reinforcement of strength of fire door improves crime prevention, prevents condensation in winter season, minimizes noise, smoke or heat passing through gap between fire door and door frame frame It becomes practical.

In addition, since the door frame frame is folded over several times to form a single body, there is no need of a work process for connecting the joint portion by welding or the like, thereby reducing the cost cost, and the smoke, So that it is reliable.

In addition, the outer surface of the fire door has soft texture, appearance and decorative effect, and the appearance of the finish material mounted on the edge of the fire door is not deteriorated due to external environmental factors and is not corroded, .

Further, the finishing material is fixed to the inner frame of the fire door by adhesive and riveting to prevent peeling of the finishing material having a different linear expansion coefficient from the fire door, thereby improving the durability and the wear resistance.

FIG. 1 is a view showing a state of use of a door frame for a fire door according to the prior art,
2 is a perspective view of a door frame for a fire door and a fire door according to an embodiment of the present invention,
FIG. 3 is a schematic front view of a door frame for a fire door and a fire door according to an embodiment of the present invention; FIG.
4 is an enlarged sectional view taken along the line AA shown in Fig. 3,
Fig. 5 is an enlarged cross-sectional view taken along the line BB shown in Fig. 4,
FIG. 6 is an enlarged view of the main part of the fire door shown in FIG. 3,
FIG. 7 is a partial cross-sectional view of the door frame shown in FIG. 3,
8 (a), (b), (c) and (d) are schematic views showing the operation sequence for manufacturing a fire door,
9 (a) is a perspective view of the door frame frame shown in Fig. 3, Fig.
Fig. 9 (b) is a perspective view of the door frame frame shown in Fig. 2,
Fig. 9 (c) is the finish material shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a door frame for a fire door and a fire door according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 to 6, a fire door having a multiple function according to an exemplary embodiment of the present invention includes:

A fire door (A) which is openably and closably mounted on a door frame (B) installed at an entrance of a building such as a high-class villa.

A box-shaped first door 101 which forms a front portion of the fire door A and encloses the built-in heat-insulating pad 100 with a metal material (for example, a stainless steel material can be used);

A first frame 102 which forms rear portions of the fire door A and which supports both side and rear edges of the first door 101 and a second frame 102 which extends to the rear side of the first door 101, An inner frame 104 formed of a second frame 103 for securing a space with the first door 101 and a heat insulating material 105 embedded in the inner frame 104, (106);

A refractory material 107 (for example, a ceramic wool or a flame retardant polyurethane foam in the form of a mat may be used) mounted on the inner side surface of the second frame 103 of the inner frame 104;

A bent portion 108a formed at an outer end of the first frame 102 of the inner frame 104 to form a groove 108c to be fitted in a concavo-convex manner, a second door 106 extending from the bent portion 108a, And a flat portion 108b which is in close contact with the first frame 102 of the first door 101 and the rear edge of the first door 101 and is attached by an adhesive agent (for example, a polyamide resin material Which may be extrusion-molded.

Decorative ornamental parts can be formed in the longitudinal direction on the upper surface of the bent part 108a of the finishing material 108 formed around the edge of the fire door A.

The heat insulating material 105 embedded in the second door 106 may be any one of a styrofoam, a glass wool, a mineral wool, a polyurethane, and a polyester.

A reinforcing member 109 mounted on the right and left inner side surfaces of the second frame 103 for supporting the refractory 107 on the inner frame 104 and reinforcing the strength of the second door 106 (Fixed by means of rivets passing through the reinforcing member 109, the refractory 107 and the second frame 103).

One end is spaced apart from the inner end of the heat insulating material 108 and placed between the upper surface of the reinforcing member 109 and the back surface of the first door 101 so as to be expanded in the longitudinal direction of the first door 101, The heat-expandable refractory material 110 (the reinforcing material 109, the heat-expandable refractory material 110, and the rivet 101 passing through the first door 101), to which the rivet 109 and the first door 101 are applied by riveting or adhesive, (Graphite can be used).

The heat-expandable refractory material 110 is a known material, and it is a known material in which powders such as natural graphite, pyrolytic graphite, and Kish Graphite are mixed with inorganic acids such as sulfuric acid, nitric acid, selenic acid and the like with organic acids such as hydrochloric acid, perchloric acid, perchloric acid, Is treated with a strong oxidizing agent such as chromate and hydrogen peroxide to produce an intergranular graphite compound, which is a crystalline compound in the state of maintaining the layer structure of carbon.

The graphite of the heat-expandable refractory material 110 is preferably neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound or the like.

When the pressure-sensitive adhesive or the adhesive is applied to the heat-expandable refractory material 110 before coating or fixing, the pressure-sensitive adhesive or adhesive may be acrylic, epoxy, rubber or the like.

Since the heat-expandable refractory material 110 has excellent fire resistance, it is possible to reduce the amount of the heat-expandable material necessary for exhibiting the fire resistance, thereby achieving a low cost.

The heat-expandable refractory material 110 can be manufactured in a simple tape form or the like using a known technique, and can be easily mounted regardless of its shape and dimensions.

When the fire door A is closed, the gap between the door frame B and the fire door A is cut off to prevent the outside air from flowing into the room or the noise from being transmitted A sealing pad 111 (a refractory gasket having a low thermal conductivity may be used) for preventing the airtightness, the heat insulation and the soundproofing from deteriorating in accordance with the sealing.

4 to 6 and 8A, the frame of the first door 101 constituting the fire door A is bent and formed by an iron plate so as to have a predetermined thickness and length.

8B, the first frame 102 of the inner frame 104 surrounding the edge of the first door 101 and the second door 106 is provided with a groove (not shown) formed in the bent portion 108a of the finish 108 The flat surface portion 108b of the finishing material 108 is tightly fixed between the rear edge of the first door 101 and the first frame 102 of the inner frame 104. [

As shown in FIG. 8C, the heat insulating pad 100 is attached to the inside of the first door 101.

As shown in FIG. 8D, the front panel 200 constituting the fire door A is coated on the heat insulating pad 100 by applying an arbitrary adhesive. Depending on the place where the fire door A is installed, marble, tempered glass, stainless steel or the like may be used as the front panel 200.

2 to 5, 7 and 9 (a) and 9 (b), a door frame for a fire door according to an embodiment of the present invention,

A door frame (B) for a fire door in which the fire door according to any one of claims 1 to 5 is installed, comprising:

A first bent portion 112 in which the airtight pad 111 is brought into close contact with the side surface of the first door 101 when the fire door A is closed (which can be spaced about 3 mm), and a first bent portion 112 A second bending part 114 formed in the second bending part 114 so as to repeatedly form a condensation bore 113 for preventing condensation due to a difference in temperature between inside and outside during the winter season, A third bend section 116 forming the receiving groove 115 and forming a protrusion 117 on the side of the second door 106 and a fourth bend section 118 extending downward on the protrusion 117, A frame (120) comprising an opening (119) fixed to a wall surface;

A heat insulating material 221 embedded in the frame 120;

And a hermetic member 121 mounted on the receiving groove 115 to block the condensation hole 113 and prevent the outside air from flowing into the inside of the building.

The frame 120 is formed by bending a steel plate having a predetermined thickness into a single body several times as in the first to fourth bent portions 112, 114, 116 and 118 by press working.

Accordingly, it is unnecessary to carry out a work process of splicing the frame 120 and joining the joints by welding or the like, thereby reducing cost. Further, it is possible to prevent smoke, outside air, and the like from leaking through the engagement clearance of the sealing member mounted on the joint portion.

The condensation perforations 113 may be formed in a circular shape, an elliptical shape, a polygonal shape, or a slot shape through the second bending portion 114.

9 (b), when the frame 120 of the door frame B for a fire door is integrally bent in a multi-step manner, when the door A is closed to the door frame B, The inclined surface 120a can be formed on one side of the door frame B so as to be upward with respect to the surface of the door frame 101. [ This makes it possible to improve the appearance of the fire door (A) opened and closed in the door frame (B).

Hereinafter, examples of using a door frame for a fire door and a door frame for a fire door according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As in Figures 2 to 9 (a, b, c), the above-

The fire door A is openably and closably mounted by hinges fixed to the top and bottom of the door frame B provided on the wall surface.

Since the fire door A is openably and closably mounted to the door frame B by means of a hinge, it is a technical content used in the related art, and thus a detailed description of the construction will be omitted.

When the fire door A is closed with respect to the door frame B by the airtight pad 111 made of a rubber material or the like mounted on the outer side of the first frame 102 of the second door door forming the fire door A, It is possible to block the inflow of outside air and noise into the room through the gap by blocking the gap between the door frame A and the body frame B. [

A channel-like reinforcing member 109 for supporting a refractory material 107 (for example, a ceramic wool or the like) attached to the inner surface of the inner frame 104 constituting the second door 106 is fitted in a rivet (not shown) It is possible to improve the fireproof performance in the event of a fire, as well as to enhance the strength of the fire door (A), thereby improving the security performance of the fire door (A).

Is installed between the upper surface of the reinforcing member 109 and the rear surface of the first door 101 so that the heat expandable refractory 110 can be expanded in the longitudinal direction of the first door 101 when heated due to the occurrence of fire. As a result, when the fire occurs, the heat-expandable refractory material 110 rapidly expands to improve the fire resistance.

Since the condensation holes 113 are formed repeatedly in the longitudinal direction in the second bent portion 114 of the frame frame B so that the external temperature is transmitted to the room through the frame frame B, It is possible to prevent the condensation phenomenon that water droplets are formed on the indoor side surface of the second door 106 constituting the fire door A due to the difference in temperature outside.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

100; Insulating pad 101; The first door
102; A first frame 103; The second frame
104; An inner frame 105; insulator
106; Second door 107; Refractory
108; Finishing material 109; reinforcement
110; Thermally expandable refractory material 111; Airtight pad
112; A first bent portion 113; Condensation piercing
114; A second bent portion 115; Housing
116; A third bent portion 117; projection part
118; A fourth bent portion 119; Opening
120; Frame 121; Airtight member

Claims (6)

1. A fire door which is openably and closably mounted on a door frame provided at an entrance of a building, comprising:
A box-shaped first door that forms a front portion of the fire door and surrounds the built-in heat-insulating pad with a metal material;
A first frame forming a rear portion of the fire door, a first frame supporting both side and rear edges of the first door, and a second frame extending from the first frame to secure a space behind the first door, A second door which is installed on the rear side of the first door with a heat insulating material embedded in the inner frame;
A refractory material mounted on an inner side surface of the second frame of the inner frame;
And a finishing material mounted between the first frame and the opposite side edges and the rear edges of the first door. The method according to claim 1,
And a reinforcing member mounted on left and right inner side surfaces of the second frame for supporting the refractory on the inner frame and having a cross section formed in a channel shape for reinforcing the strength of the second door. Lt; / RTI > 3. The method of claim 2,
Wherein one end is spaced apart from an inner end of the finishing material so as to be inflated in the longitudinal direction of the first door when heated by a fire and is disposed between an upper surface of the reinforcing material and a rear surface of the first door, And a thermally expandable refractory material to which the adhesive is applied and attached. The method according to claim 1, wherein the finish material is extrusion-molded as a polyamide resin material,
And a planar portion extending from the bent portion and being mounted between the first frame and the first door by an adhesive. According to another aspect of the present invention, A fire door with multiple functions. The method according to claim 1,
And an airtight pad mounted on an outer surface of the first frame for blocking a gap between the door frame and the fire door when the fire door is closed. A door frame for a fire door, comprising the fire door according to any one of claims 1 to 5,
A first folded portion spaced apart from a side surface of the first door when the fire door is closed and closely adhered to the airtight pad; a condensation hole formed to extend from the first bent portion to prevent condensation due to a temperature difference between indoor and outdoor A third bent portion bent in a stepped manner to form a receiving groove formed in the second bent portion and having a protrusion formed on the second door side; a fourth bent portion extending downward from the protrusion; A frame comprising an opening fixed to the wall surface of the building;
A heat insulating material embedded in the frame;
And a hermetic member mounted on the receiving groove to block the condensation piercing and prevent external air from entering the interior of the building.

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