KR200449221Y1

KR200449221Y1 - Fireproof interior door

Info

Publication number: KR200449221Y1
Application number: KR2020090008288U
Authority: KR
Inventors: 신종철
Original assignee: 신종철
Priority date: 2009-06-26
Filing date: 2009-06-26
Publication date: 2010-06-24

Abstract

In order to minimize the size of the fire due to the propagation of flames and the spread of toxic gases through the entrance and the expansion of toxic gas, the design of the apartment, general housing, hotel, etc. It relates to an indoor fire door that can be applied to indoors, entertainment venues, shopping malls, and the like.

The present invention implements a new fireproof structure door in the form of a double panel that forms an air layer therein, and the structure is simple, so that it can be manufactured at a low cost and a simple process. Not only can the thermal deformation be minimized without using it, but also provides an indoor fire door that can exhibit excellent fire resistance.

Fire, fire door, door chassis, air layer, non-flammable plate, iron plate, double panel structure

Description

Fireproof interior door

The present invention relates to an indoor fire door, and more particularly, to an indoor fire door that can block the propagation of flame and diffusion of toxic gas through the doorway in the event of a fire.

In general, the interior door is to open and close the entrance and exit of each space inside the building, consisting of plywood or synthetic resin is attached to the front and rear surfaces of the frame frame made by connecting bars.

Most of these indoor doors are doors made of wood or synthetic resin, and these doors have no fire resistance.

In addition, most of the interior doors with fire-proof performance as wood materials are commercialized in advanced foreign countries such as Japan and Europe, but are rarely found in Korea.

Looking at the shape of the wooden fire door having a conventional fire-proof performance, in the case of foreign countries, a fire door having a structure in which a non-flammable filler such as rock wool or an inorganic board is inserted into a core frame of a fire-treated composite wood, and a non-flammable board is attached to an outer plate, or There are fireproof doors with a structure of inorganic non-flammable board layer laminated on fire-retardant sheet metal.In Korea, non-flammable filler is inserted into an internal reinforcement frame attached with steel reinforcement and heating foam on the side of the inner core. There are fire doors made of a structure in which an outer plate of a multi-plywood structure in which non-flammable sheets are laminated between plywood is attached.

However, the conventional fire doors are not only difficult to manufacture but also high production cost and productivity decrease due to complicated manufacturing processes such as wood flame retardant process, non-combustible sheet bonding or insertion, steel reinforcement material insertion process, and multi-plywood lamination process. This is somewhat difficult to use universally.

In addition, it is difficult to express various sound and embossed textures compared to general wooden doors in appearance, and there is a limit in the expression of the design.

In particular, in the case of a double plywood structure in which a non-combustible sheet is laminated, productivity is greatly reduced by multiple bonding processes of plywood, non-combustible sheet, and plywood, and an external plywood may be dropped due to a decrease in adhesive strength between the non-combustible sheet and plywood.

In addition, high production costs are generated by applying expensive non-combustible sheets.

In addition, in the core structure, when the flame retardant plate is applied, there is a difficulty in visual work due to the high flame retardant cost and the door weight becomes very high, and when inserting the steel reinforcement, complex groove processing and steel of the core The manufacturing process is very difficult due to the difficulty in fixing the reinforcement and the core.

Therefore, the present invention has been devised in view of such a point, and by implementing a new fireproof structure door made of a double panel form to form an air layer therein, the structure is simple and can be manufactured at low cost and simple process, In particular, the purpose is to provide an indoor fire door that can minimize the heat deformation without using expensive flame retardant or steel reinforcement as an inner core material, and can exhibit excellent fire resistance.

In order to achieve the above object, the interior fire door provided by the present invention is made of a metal plate on the outer side and a non-flammable plate on the inner side, and is disposed inside and outside at a predetermined distance from each other to form an air layer therebetween. It is formed in the form of a double panel including a panel and a door chassis that maintains the gap between the panel by using a flange for maintaining the gap extending inward while closing the edge while being mounted along the four sides of the door inner and outer panels, Although the overall structure is simple, it has a feature that can exhibit excellent fire resistance performance by double blocking structure using air layer.

The interior fire door provided by the present invention is based on a double panel structure that forms an air layer therein and has a simple structure with a door chassis on the outside, thus simplifying and manufacturing the manufacturing process while excluding expensive fireproof materials. There is an advantage that can be popularized to spread the indoor fire door, such as to reduce the cost.

In particular, by arranging a panel composed of a combination of metal plate and non-combustible plate in duplicate, and providing an air layer therebetween, it can exhibit excellent fire resistance performance, such as effectively preventing the spread of flame and diffusion of toxic gas in the event of a fire, and eventually It has the effect of minimizing the size of fire and increasing the damage to life.

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

1 to 3 is a perspective view and a cross-sectional view showing the appearance and internal structure of the indoor fire door according to an embodiment of the present invention.

As shown in Figures 1 to 3, the indoor fire door is a door inner panel 13 and door outer panel 14 corresponding to the door body, the door chassis 16 for finishing the border of the panel, as well as general Like the door, it includes a door hinge 22 and a door handle 23.

The indoor fire door has a double panel structure that forms an air layer 12 therein, which can help simplify the structure, and in particular, can exhibit excellent fire resistance.

To this end, the door inner panel 13 and the door outer panel 14 is formed by laminating and combining the metal plate 10 and the non-flammable plate 11, while being arranged side by side at a predetermined distance from each other, and In the state where the gap is maintained, the edge constitutes the door body of the double panel structure closed by the door chassis 16.

In this case, the door inner panel 13 and the door outer panel 14 may be disposed in a form in which the metal plate 10 forms an outer surface and the non-combustible plate 11 forms an inner surface.

That is, the door inner and outer panels 13 and 14 may be disposed to face the non-flammable plates 11 with each other while facing the metal plate 10 to the outside.

Here, the metal plate 10 may be applied to a thin plate such as aluminum, and the non-combustible plate 11 may be a panel made of a material such as a gypsum board thicker than the metal plate 10.

At this time, the aluminum plate 10 and the non-combustible plate 11 of gypsum material are attached and laminated in contact with each other by an adhesive or the like.

In addition, the metal plate 10 of the inner and outer panels 13 and 14 of the door has a size extending outward more than the size of the non-flammable plate 11, wherein the extended edge portion is formed by bending 90 ° And fitted into the fitting grooves 18 of the door chassis 16 to be described later.

The door chassis 16 is a member that closes the four edges of the door body including the door inner panel 13 and the door outer panel 14, and is formed of a long strip-shaped chassis member.

The door chassis 16 is provided with means for maintaining a constant distance between the door inner panel 13 and the door outer panel 14.

For example, the rear surface of the door chassis 16 has a pair of side by side flanges 15 for a predetermined length, and the interior and exterior panels 13, ( 14 is supported by the non-flammable plate 11 positioned on the inner surface of the door 14, and the inner and outer panels 13 and 14 of the door are supported by the spacer 15 to maintain a constant distance therebetween. It is possible to form an air layer 12 inwardly.

In addition, both side surfaces of the door chassis 16 are provided with fitting grooves 18 formed side by side in the chassis longitudinal direction, and the fitting grooves 18 at this time are the inner and outer panels 13 and 14 of the door. The edge bent portion of the metal plate 10 is fitted.

In other words, the door chassis 16 may be mounted on the panel side while being fitted to the bent portion of the metal plate 10 using the fitting groove 18.

Of course, with the coupling between the metal plate bent portion and the fitting groove as described above, the adhesive structure or the piece fastening structure is added, so that the door chassis 16 may be firmly mounted to the edges of the inner and outer panels 13 and 14 of the door.

And, the edge of the edge of one side of the entire edge of the edge of the door chassis 16 is mounted while closing the four edges of the door inner and outer panels 13, 14, for example, the door handle 23 and In the vertical edge closing section that is in contact with each other, a chassis mounting groove 19 is formed on the front of the chassis in a longitudinal direction. The chassis mounting groove 19 at this time has a long band-shaped lock fixing chassis 17 side by side. Is fitted.

In this case, the lock fixing chassis 17 may be mounted to the locking grooves 21 provided on both side walls of the chassis mounting groove 19 by using the locking protrusions 20 on both sides thereof. When the machine 20 and the locking groove 21 are released, it is possible to remove it.

Here, the lock fixing chassis 17 closes the chassis mounting groove 19 of the door chassis 16 and reinforces the vertical edge closing section once again after the door chassis 16 is attached.

In addition, the door chassis 16 serving as the door frame of the door inner and outer panels 13 and 14 is provided with a frame fixing member 24 to prevent the structure of the rectangular door frame from being separated from each other.

At this time, the frame fixing member 24 is formed in a substantially "A" shape, is fitted in each corner portion formed in the groove portion 25 formed inside the door chassis 16 is installed in each corner portion door chassis 16 It plays a role of firmly fixing the assembly state of the whole.

Therefore, the manufacturing process of the indoor fire door configured as described above is as follows.

First, a door inner panel 13 and a door outer panel 14 having a laminated combination of a metal plate 10 and a non-flammable plate 11 are prepared.

Next, the door inner and outer panels 13 and 14 are assembled to the door chassis 16 which is in the form of an integral rectangular frame or four divided shapes.

For example, when the door chassis 16 has four divided shapes, each member of the door chassis 16 is assembled into the frame fixing member 14 in a rectangular door frame shape, and then the door chassis 16 is assembled into the door chassis 16. Assemble the bent portion of the metal plate 10 of the inner and outer panels 13 and 14 of the door into the fitting groove 18.

After the above assembly, if necessary, the piece may be fastened between the inner and outer panels 13 and 14 and the door chassis 16.

The non-flammable plate 11 of the door inner panel 13 and the non-flammable plate 11 of the door outer panel 14 in the door inner and outer panels 13 and 14 and the door chassis 16 are assembled into the door chassis. 16, the door inner panel 13 and the door outer panel 14 form an air layer 12 therein and maintain a predetermined distance therebetween. 16) to form a one-piece door body in the form that the four sides of the border is closed.

Subsequently, when the lock fixing chassis 17 is attached to the edge finishing section of one surface of the door chassis 16, the door handle 23, the plurality of door hinges 22, and the like are finally attached to the door body. It is possible to complete the interior fire door made of a double panel structure.

As described above, the indoor fire door of the present invention is composed of a metal plate on the outside and a non-flammable plate on the inside, and such a structure is arranged in a double and an air layer is formed in the interior for thermal cutoff, so that a double panel structure and an air layer are formed in case of fire. Absorption and buffering effect can be used to maintain sufficient durability such that thermal deformation can be minimized, thus effectively preventing flame propagation through the entrance and exit, and also effectively blocking toxic gas diffusion and Since it can delay, it can reduce the spread of fire and the casualty caused by fire.

1 is a perspective view showing a combined indoor fire door according to an embodiment of the present invention

2 is an exploded perspective view showing an indoor fire door according to an embodiment of the present invention

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

10: metal plate 11: non-flammable plate

12 air layer 13 door inner panel

14 door outer panel 15 flange

16: door chassis 17: lock fixed chassis

18: fitting groove 19: chassis mounting groove

20: jamming protrusion 21: locking groove

22: door hinge 23: door handle

24: frame fixing member 25: groove

Claims

In the indoor fire door,

The door inner panel 13 and the door outer panel 14, which are made of a metal plate 10 on the outer surface and a non-combustible plate 11 on the inner surface, are disposed inward and outward with a predetermined distance from each other and form an air layer 12 therebetween. And four door chassis 16 closing the edge and serving as the door frame while being mounted along the four side edges of the door inner and outer panels 13 and 14,

The door chassis 16 has a pair of flanges for maintaining a gap between the inner and outer panels 13 and 14 while being in contact with the non-flammable plate 11 formed in a pair extending side by side inwardly. ) And fitting grooves 18 formed on both sides of the door chassis 16 side by side along the longitudinal direction of the door chassis 16 to which the bent edges of the door inner and outer panels 13 and 14 are fitted. Indoor fire door, characterized in that it comprises a groove 25 is fitted with a frame fixing member 24 for connecting the neighboring door chassis (16).

delete

The indoor fire door according to claim 1, wherein a lock fixing chassis (17) is fitted into the one-side edge finishing section of the door chassis (16).

The fire door according to claim 1, wherein the non-flammable plate (11) of the inner and outer panels (13) of the door is made of a gypsum board and attached to the metal plate (10).