KR20200045060A - Fire doors with excellent smoke and heat shield performance and method for manufacturing fire doors with excellent smoke and heat shield performance - Google Patents

Abstract

The present invention relates to a fire door with excellent smoke-blocking and heat-blocking performance and a manufacturing method thereof, which strengthens smoke-blocking performance and heat-blocking performance to secure safety when a fire occurs. The present invention uses a reinforcing frame of a multi-bent cross section arranged along the edge of a fire door and uses a dividing plate for constructing an internal area of a door into two isolated zones to strengthen the stiffness of the door, secure a long heat transfer path between the inner and outer panels of the door, and delay and block heat flow through the internal area of the door, thereby minimizing thermal deformation such as twisting in a fire and delaying a heat transfer rate between the inner and outer panels of the door. Consequently, safety can be secured when a fire occurs.

Description

FIRE DOORS WITH EXCELLENT SMOKE AND HEAT SHIELD PERFORMANCE AND METHOD FOR MANUFACTURING FIRE DOORS WITH EXCELLENT SMOKE AND HEAT SHIELD PERFORMANCE}

The present invention relates to a fire door used for indoor use in a house or a building and a method for manufacturing the same, and more particularly, it has excellent heat shielding and smoke-retardant performance that can enhance heat shielding performance and smoke shielding performance to ensure safety in case of fire. It is about fire doors and how to make them.

In general, the fire door (防火 門) is capable of human traffic, but is designed to prevent the penetration of flames in the event of a fire, and plays an important role in the prevention of fire damage.

These fire doors are very important facilities to minimize the propagation of flames in the event of a fire and to secure an evacuation route, and inspection is mandatory at regular intervals.

Usually, fire doors are structures such as entrance doors or emergency doors that are installed to prevent fire from spreading to the back of houses, apartments, factories, offices, and prefabricated temporary buildings.

Such fire doors mostly include a square-shaped door frame that is installed through a wall, a door that is coupled to the door frame with one or more hinge coupling means in a state sandwiched between the door frames, and the like.

In addition, handles are installed on the front and rear surfaces of the door, so that the user opens or closes the door by pulling or pushing the door while holding the handle.

In addition, either one of the front or rear of the door has a locking jaw protruding along the edge so as to cover the space between neighboring door frames when the door is closed, thereby blocking smoke or heat in the event of a fire. The door can only be flipped in one direction.

The door frame and the fire door including the door are made of a metal material resistant to heat to prevent deformation or loss due to fire.

In addition, in the case of a fire, an insulating material is embedded in the fire door to perform an insulating function similar to a general window.

However, the fire door made of metal has high heat conductivity, so there is a limit to block heat transmitted through the contact path between the panels, no matter how internally the insulating material is embedded.

In addition, the insulating materials are vulnerable to high temperatures, so they are easily lost and deformed in the event of a fire. At this time, the fire door is deformed like the insulating materials, and flame, heat, and smoke are introduced to halve the heat shield and smoke insulation properties of the fire door. There is a problem acting as.

As an example, a conventional fire door has a structure including a door installed on a door frame on a wall side, and the door at this time is composed of an inner panel, an outer panel, and an insulating material.

However, the door is made of a simple combination of an inner panel and an outer panel incorporating a heat insulator, and as a result, when exposed to a high temperature environment during a fire, easily deforms such as warping due to its weak strength, and the outer panel side. The heat conduction path leading from the inside to the inner panel is short, so that the heat of the flame can be directly propagated to the inside and the smoke can penetrate as it is.

For example, there is a disadvantage in that the function as a fire door is vulnerable, such as a structure in which a heat-insulating material is simply filled inside, so that heat from the outside panel can quickly pass through the heat-insulating material and propagate to the inside panel.

After all, in order to solve the vulnerable strength problem of the fire door, the problem of heat conduction between panels, etc., a separate frame construction has to be carried out, and the entire door and door frame must be completely replaced. There are disadvantages.

Accordingly, there is a need for a fire door having a structure that is excellent in airtightness and can be secured in normal times, and is particularly resistant to high temperatures and has excellent heat-resistance and flame-retardant properties during a fire.

In view of this point, in Korean Patent Publication No. 10-2017-0019124, to improve the insulation and fire resistance, such as applying a bent portion to a door inner panel or an outer panel, or applying a flame retardant packing member, a door having improved fire resistance and including the same Fire Door Unit ”.

However, in the case of the above-mentioned `` door with improved fire resistance and a fire door unit including the same, '' there is a limitation in slowing the heat conduction speed because the connecting portions between the inner and outer panels are almost straight sections, and in particular, the inner and outer panels of the door are spaced apart from each other. Due to its structure, it is difficult to secure adequate strength, and there is a high risk of deformation when exposed to high temperatures during a fire. In the case of phosphorus or halogen used as a flame retardant, fire cannot be performed under extremely high temperature conditions. There are insufficient points to prevent the infiltration of smoke or toxic gases generated in the city.

Korean Patent Publication No. 10-2017-0019124 Korean Patent Publication No. 10-2016-0071079 Korean Patent Publication No. 10-2011-0090253

Accordingly, the present invention was devised in view of this point, and the partition plate for constructing the inner region of the door into two isolated zones, as well as applying a reinforcement frame of a multi-stage bending section arranged along the border of the fire door By applying, it not only strengthens the door's own rigidity, but also secures a long heat transfer path between the inner and outer panels of the door, and also delays and blocks heat flow through the door's interior area, thereby minimizing thermal deformation such as warpage during fire. Provides a fire door with excellent heat-insulation and smoke-retardant performance that can enhance heat-blocking performance and smoke-blocking performance, such as delaying the rate of heat conduction between inner and outer panels, and finally, to provide safety in case of fire. There is a purpose.

In addition, another object of the present invention is to apply the reinforcement frame of the multi-stage bending type cross section arranged along the rim of the fire door and at the same time apply the "c" shaped reinforcement combined with the reinforcement frame to secure the door's own rigidity and By securing a long heat transfer path between the outer panels, it is possible to minimize heat distortion such as warpage during a fire, while at the same time delaying the rate of heat conduction between the inner and outer panels, thereby enhancing the heat-blocking performance and smoke-blocking performance. An object of the present invention is to provide a fire door with excellent heat-insulation and insulation performance that can secure city safety and a method of manufacturing the same.

In addition, another object of the present invention adopts a packing made of a non-combustible material such as Ceracrow which is disposed along the front circumference of the fire door door frame, so as to maintain the function and form even in a high temperature environment during a fire, as well as smoke. An object of the present invention is to provide a fire door having excellent heat-insulation and smoke-retardant performance and a method for manufacturing the same, capable of effectively blocking toxic gases and securing sufficient flame-retardant performance.

In order to achieve the above object, a fire door having excellent heat insulation and insulation performance provided by the present invention has the following characteristics.

The fire door having excellent heat insulation and insulation performance is installed on the inside of the door frame on the side of the structure wall, and can be opened and closed and a door composed of a door inner panel and a door outer panel filled with heat insulating material therein, and the door inner panel and door outer panel. A rectangular reinforcement frame which is arranged side by side along the inside of the edge of the liver and has a multi-stage bending cross-section in which a "c" -shaped cross-section is continuously connected in a zigzag shape, and the inside of the door. It is constructed in a structure that includes a partition plate which is installed in parallel to the inside and outside panels of the door to form the door interior area into two separate areas, the inner area and the outer area.

The reinforcement frame of the fire door with excellent heat insulation and insulation performance minimizes the occurrence of deformation even when high-temperature flame or heat is applied to the door side in the event of a fire. Characterized in that it serves to secure a long path of heat transfer to the door inner panel, and the partition plate serves to delay and block heat transferred through the door inner region and the heat insulating material.

Here, the partition plate may be installed in a structure coupled to the other end of the inner reinforcement that extends while being fixed through one end to the side of the reinforcing frame.

In addition, the fire door having excellent heat-insulation and insulation performance may further include a “c” -shaped reinforcing bar that is coupled to the inner surface of the reinforcing frame to enhance the rigidity of the door by forming a box-shaped space with the reinforcing frame.

As a preferred embodiment, the reinforcing frame interposed between the door inner panel and the door outer panel can be coupled to the door inner panel by welding, and can be coupled to the door outer panel by rivet fastening.

On the other hand, in order to achieve the above object, a method of manufacturing a fire door having excellent heat insulation and insulation performance provided by the present invention has the following characteristics.

The method of manufacturing a fire door having excellent heat insulation and insulation performance is a method of manufacturing a door made of a rectangular plate structure installed in a door frame of a wall structure, the first step of preparing a door inner panel, a door outer panel, and a partition plate Wow, interposed between the door inner panel and the door outer panel to contact the inner surface of the inner and outer panels of the door through the front and rear surfaces thereof. The second step of preparing a reinforcing frame made of a rectangular frame shape corresponding to the outer size and shape of the door while having a cross section of And, while adhering the reinforcing frame to the inner surface of the door inner panel, along the edges of all four sides After arranging side by side, the third step of joining the back of the reinforcement frame in contact with the inner panel side of the door by welding, and the Door inner panel and reinforcing frame that are integrally combined by fold, a fourth step of drying after coating the door outer panel and the partition plate, and inside the door inner panel and the reinforcing frame that have been painted and dried 1 In addition to inserting the car insulation, the fifth step of closing the primary insulation by inserting a partition plate through a rivet on the inside of the reinforcing frame and inserting the secondary insulation into the reinforcing frame and the partition plate, primary and secondary It is characterized in that it comprises a sixth step of finishing the secondary insulation by fastening the rivet to the front of the reinforcing frame on the door outer panel after painting and drying the car after inserting the insulation.

The fire door and the manufacturing method thereof having excellent heat-insulation and insulation performance provided by the present invention have the following effects.

First, by installing a square reinforcement frame having a cross-sectional shape of multi-stage bending, for example, a seven-stage bending cross-section along the edge connecting portion between the inner panel and the outer panel of the fire door, the door itself can be secured rigidity, In addition, it is possible to secure a long heat transfer path from the inner panel to the outer panel, thus minimizing thermal deformation such as warping in case of fire, as well as delaying the rate of heat conduction between the inner and outer panels. It has an effect of enhancing safety in the event of fire by strengthening the blocking performance.

Second, by installing a partition plate inside the door, the interior area of the door is divided into two separate zones, thereby delaying and blocking the heat transmitted through the heat-insulating material filled in the door to the partition plate and at the same time allowing the partition plate. It is possible to further enhance the thermal barrier performance, such as reinforcing the structural rigidity of the door, and at the same time, to minimize the thermal deformation of the door, thus improving the stability in case of fire and at the same time improving the rigidity of the door. have.

Third, by applying a partition plate that can effectively delay and block the heat transfer through the insulation by constructing the interior area of the door into two isolated areas, it is possible to use low-density, low-density insulation materials instead of expensive high-density insulation materials. Therefore, it is possible to lower the cost of manufacturing fire doors.

Fourth, applying the reinforcement frame of multi-stage bending cross section arranged along the rim of the fire door, and at the same time applying the “c” shape reinforcement combined with the reinforcement frame to secure the door's own stiffness as well as the heat transfer path between the inner and outer panels. By securing it for a long time, it is possible to minimize thermal deformation such as warping during a fire, and at the same time, it is possible to enhance the heat blocking performance and smoke blocking performance, such as delaying the heat conduction speed between the inner and outer panels.

Fifth, by installing a packing made of non-combustible material such as cerac wool along the front circumference of the door frame where the door of the fire door is installed, it is possible to maintain its function and form even in a high temperature environment in case of fire, and It has the effect of blocking as much as possible, not only smoke, but also toxic gases and heat.

Sixth, an expensive and complex structure fire door used for fire escapes or shelters, etc., can be produced economically simply with minimal effort by assembling the inner and outer panels and reinforcement frames by welding or riveting when manufacturing the fire door. Unlike, there is an effect that can be applied as a fire door for a house or building indoors, that is, a fire door for both doors and doors.

1 and 2 is a perspective view showing a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention
3 is a perspective view showing a frame of a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention
4 is a cross-sectional view showing a frame of a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention
Figure 5 is a cross-sectional view showing the arrangement relationship between the door and the door frame in the fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention
6 is a perspective view showing a frame of a fire door having excellent heat insulation and insulation performance according to another embodiment of the present invention
7 is a cross-sectional view showing a frame of a fire door having excellent heat insulation and insulation performance according to another embodiment of the present invention
8 is a schematic view showing a method of manufacturing a fire door having excellent heat insulation and insulation performance according to the present invention

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

The fire door provided by the present invention is excellent by securing heat stiffness as well as delaying the heat conduction speed through improving the door structure such as being capable of securing a long heat transfer path and delaying and blocking the heat transfer path through the interior space of the door. It is made of a structure that can exhibit heat-insulating and insulating performance.

1 and 2 are perspective views showing a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention.

As shown in Figures 1 and 2, the fire door is installed inside the door frame 10 of the square shape installed in the door-side wall structure of the evacuation space constructed in the home or building, the door for opening and closing operation It has a handle 19, and includes a door 14 that can be opened and closed while rotating the door hinge 20 in an axis.

At this time, the door 14 is installed in a structure that can be opened toward the interior of the evacuation space so that the evacuee can push into the evacuation space.

The door frame 10 is a rectangular frame structure installed on a wall of a structure such as a building, and may be formed in a panel bending shape having an open box-shaped cross-section on one side. The insulating material (not shown) can be filled.

At this time, a plurality of cross-shaped strip pieces 26 supported by welding or the like are mounted on the door frame 10 side of the open portion of the box-shaped cross-section of the door frame filled with the heat insulating material, and the cross-shaped strip pieces 26 at this time open the door frame As it is located in various places of the part, it plays a role of preventing the insulation inside from coming out.

Here, in the case of the cross-shaped strip piece 26, the box-shaped cross-section opening part of the door frame 10 is much more economical than the method of completely closing using a plate body, and it is possible to simply prevent the insulation from being detached within the box-shaped cross-section. There will be.

In addition, since the door frame 10 is manufactured by bending and molding to have a box-shaped cross section using one panel, compared to the method of welding and joining multiple panels, the number of manufacturing steps can be reduced. There is an advantage.

In addition, the inside of the door frame 10, that is, the inside contacting the edge of the door 14 forms a step structure in one or two steps along the width direction before and after the door frame, and the door 14 in the step structure at this time As it is received, the closed state can be maintained.

Particularly, a packing groove 25 is formed in the inner stepped portion of the door frame 10, and the packing groove 25 can be formed in a continuous manner along the entire circumference inside the door frame.

Further, the packing groove 25 has a gasket in the form of a rope (26 in FIG. 5), which serves to completely block the inflow of smoke or toxic gas through the gap between the door side and the door frame side in the event of a fire. It is mounted, and the gasket 26 can serve to maintain airtightness while being pressed by contact with the outside panel side of the door when the door is closed.

Here, in the case of the gasket 26, a material such as cerac wool may be used as a non-combustible material that does not burn or stick to fire even in a high temperature environment.

At this time, the diameter of the gasket 26 may be made of a relatively large dimension compared to the width of the packing groove 25, and accordingly, the gasket 26 can be fitted into the packing groove 25 by force fit. .

In other words, in the case of the packing means applied to the existing fire door, unlike the adhesive means for fixing the packing means, the gasket 26 in the form of a rope is pressed directly into the packing groove 25 without using adhesive or the like. By adopting the embedding method, there is an advantage that it is possible to completely exclude damage from toxic gases, etc., generated when the adhesive or the like is burned during a fire.

3 and 4 are a perspective view and a cross-sectional view showing a frame of a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention.

3 and 4, the door 14 of the fire door is a rectangular plate structure installed in the door frame 10, and the door inner panel 12 disposed inside the evacuation space and the evacuation space outside. The door outer panel 13 is disposed, and includes a reinforcement frame 15 interposed along the border between the door inner and outer panels 12, and a heat insulating material 11 filled inside the door inner and outer panels 12 and 13 Structure.

Here, the insulating material 11 may be applied to a non-combustible insulating material such as mineral wool, glass wool, cerac wool, PIR, phenolic foam, basoform, and the like, and the insulating material 11 is a door inner panel 12 and On the basis of the partition plate 21 to be described later installed inside the door outer panel 13, the primary insulating material 11a filled in the inner region between the door inner panel 12 and the partition plate 21 and the door outside It can be composed of a secondary insulating material (11b) filled in the inner region between the panel 13 and the partition plate (21).

The door 14 includes a reinforcing frame 15 interposed between the door inner panel 12 and the door outer panel 13, so that it can be made of a structure capable of reinforcing its own rigidity and delaying the heat conduction speed between the panels. do.

To this end, the door 14 is installed in a structure that can be opened and closed from the inside of the door frame 10 and is composed of a door inner panel 12 and a door outer panel 13 that accommodate the insulating material 11 therein.

In addition, the inside of the edge between the door inner panel 12 and the door outer panel 13 has a multi-stage bending type cross-section and reinforcement frame 15 that integrally binds the inner and outer panels 12 and 13 of the door. It is installed.

At this time, the reinforcing frame 15 is made of a rectangular frame shape corresponding to the outer size and shape of the door, and is arranged side by side along the edges of all four sides of the door 14.

The reinforcing frame 15 is interposed between the door inner panel 12 and the door outer panel 13 to come into contact with the inner surfaces of the door inner and outer panels 12 and 13 through the front and rear surfaces thereof. The rear of the reinforcing frame in contact with the panel 12 side can be integrally joined by welding, and the front of the reinforcing frame in contact with the door outer panel 13 side can be integrally joined by riveting, so door production is easy. In particular, there is an advantage that can secure the quality of the insulating material embedded in the door.

For example, when manufacturing the door 14, the door inner panel 12 is welded to the back of the reinforcing frame 15 by welding, and the door inner panel 12 and the reinforcing frame 15 thus bonded are coated. In addition to the processing box (actually, the door inner panel and the reinforcing frame and the inner reinforcing bar to be described later are painted), the separately prepared door outer panel 13 is also coated, and then the door inner panel 12 after drying. ) And insert the insulating material 11 inside the reinforcing frame 15 (substantially, after inserting the primary insulating material, rivet the partition plate to be described later, and then insert the secondary insulating material), and continue to the door outer panel The door 14 is manufactured by a method of closing the heat insulating material 11 by fastening the rivet to the front of the reinforcement frame 15.

Accordingly, since the inserting step of the heat insulating material 11 proceeds after the painting process, it is possible to prevent the heat insulating material 11 from being contaminated or damaged during the coating process, and in turn, it is possible to secure the quality as well as preserve the original shape of the heat insulating material. It is possible to improve the performance and quality of the heat insulating material (11).

That is, in the previous case, since the door was manufactured by welding the inner and outer panels in a state in which the insulating material is contained, and then performing the painting treatment process for the entire inner and outer panels having the insulating material, the coating solution is used in this process. There was a disadvantage in that the insulating material was contaminated by the back, and thus could not function properly, but in the present invention, the quality of the insulating material can be improved by adopting a door manufacturing method such as closing through a rivet after pre-coating as described above.

The cross-sectional structure of the reinforcing frame 15 is a continuous zigzag cross-section of a plurality of "c" -shaped cross-section 16, that is, a plurality of "c" -shaped cross-section 16 alternately arranged alternately and continuously It can be made of a cross-sectional structure of a 7-fold bending type connected in one piece.

For example, each of the "c" -shaped cross sections 16, that is, one of the "c" -shaped cross sections 16a, 16b, and 16c, one "c" -shaped cross section 16a contacting the door inner panel 12 side ) And the other "c" shaped cross section (16b) facing the door outer panel (13) side so that the open end section faces the inside of the door, and the "c" shaped cross section (16a) and the outside of the door inside the door inner panel The other "c" -shaped cross section 16c connecting between the panel-side "c" -shaped cross sections 16b is directed toward the outside of the door, so that the three "c" -shaped cross sections 16a, 16b, and 16c have a partial cross section length. It is possible to achieve a form that is connected to each other integrally while sharing.

Accordingly, the reinforcement frame 15 capable of securing the lateral and longitudinal stiffness exhibited by the cross-sectional structure of a plurality of “c” -shaped cross-section combinations includes a door inner panel 12 and a door outer panel of the door 14 (13) While being integrally coupled to the edges between the two sides, the entire frame is maintained, and the door has a predetermined strength, so that even when a high-temperature flame or heat in the event of a fire is applied to the door 14, it is warped. It is possible to minimize the occurrence of deformation, such as distortion.

In addition, the path through which heat is transferred from the door outer panel 13 to the door inner panel 12 by the multi-staged "c" cross section 16 of the door frame 15 can be secured for a long time. Therefore, it is possible to slow down the heat transfer rate, and eventually the flame propagation speed is delayed, thereby reducing the damage to human life and property.

That is, the reinforcing frame 15 has a bent (bent) path of about 5 times due to a plurality of "c" shaped cross sections 16 when compared with a straight path corresponding to the thickness between the existing door inner and outer panels. In the end, the heat transfer rate can be slowed down as much as possible through a relatively long path, for example, a long path bent in multiple stages, compared to the straight path.

As described above, in the present invention, by arranging the reinforcement frame of the multi-stage bent section along the border of the fire door, it secures the door's own rigidity and provides a new fire door that sufficiently secures the heat transfer path between the inner and outer panels, thereby providing a flame in the event of fire. It is possible to minimize the thermal deformation such as warping, and at the same time, to delay the heat conduction speed between the inner and outer panels, and to enhance the heat shielding performance and smoke shielding performance, which in turn can secure the safety in case of fire.

In particular, the door 14 includes a partition plate 21 as a means to delay and block heat transfer through the door interior space, that is, directly through the insulation 11 filled in the door interior space.

The partition plate 21 is in the form of a square plate having a size corresponding to the size of the door inner and outer panels 12 and 13, the door inner panel 12 and the door outer panel 13 in the inner region of the door 14 It is installed side by side, and accordingly, the inner region of the door 14 is the inner region 17 between the door inner panel 12 and the partition plate 21 based on the partition plate 21, and the partition plate ( 21) and an outer area 18 between the door outer panel 13.

At this time, the inner region 17 and the outer region 18 may be formed as zones isolated from each other.

The partition plate 21 may be installed in a structure that is directly coupled to the reinforcing frame 15 side, but through the internal reinforcing bar 22 fixedly installed on the side of the reinforcing frame 15 for reasons such as ease of rivet fastening. It is desirable to be installed.

To this end, one end of the strip-shaped inner reinforcement 22 is welded to one side of the inner surface of the reinforcing frame 15, for example, one side of the inner side of the “c” shaped cross section 16c of the reinforcing frame 15. The other end of the inner reinforcement 22 which is fixedly installed by and installed in this way is positioned to extend inside the door more than the inner end of the reinforcement frame 15, and the other end of the inner reinforcement 22 which is thus extended. Since the edge portion of the partition plate 21 is riveted at the end, the partition plate 21 can be installed on the side of the reinforcing frame 15 through the internal reinforcement 22.

Here, the inner reinforcement 22 may be installed along the four sides of the reinforcement frame 15 forming a square frame structure, whereby the partition plate 21 is also in a state where the edge portion of the four sides is fitted to the inner reinforcement 22 side In a number of places, rivets can be fastened.

In this way, the inside of the door 14 is provided with a partition plate 21 partitioning between the door inner panel 12 and the door outer panel 13, so that the interior of the door 14 is divided into two areas, It can be composed of the inner region 17 and the outer region 18, at this time, the inner region 17 is filled with the primary insulating material 11a, and the outer region 18 has a secondary insulating material 11b. Will be filled.

Therefore, when a fire occurs outside the evacuation space, when the heat from the flame is transferred from the door outer panel 13 to the door inner panel 12 through the secondary insulation 11b and the primary insulation 11a, the door outside The heat transferred from the panel 13 to the secondary insulating material 11b, that is, the heat transferred through the outer region 18 is blocked by the partition plate 21 and is blocked, thereby delaying the first time and a predetermined time elapses. Only after being delivered to the door inner panel 12 through the primary heat insulator 11a, i.e. through the inner zone 17, it is possible to effectively delay and block the heat transferred through the insulator filling the zone inside the door. There will be.

On the other hand, since the partition plate 21 installed inside the door 14 exhibits a function of delaying and blocking heat transfer, an expensive high-density heat insulating material used to delay heat transfer as much as necessary is necessary. The partition plate 21 can perform its role (delay and blocking of heat transfer) even when a low-cost low-density insulation material is used, so that an expensive high-density insulation material can be replaced with a low-cost low-density insulation material. There is an advantage that can significantly reduce the production cost of fire doors.

Of course, in the case of the partition plate 21, in addition to the function of delaying and blocking heat transfer, it is combined with the side of the reinforcement frame 15 together with the inner reinforcement 22 to form a single integral structure, and also of the door 14 The cross section encloses two box-shaped cross-sections, that is, the door inner panel 12 and the partition plate 21 surrounding the inner region 17, and one box-shaped cross section made by the reinforcement frame 15 and the outer region 18. The door outer panel 13 and the partition plate 21, and another box-shaped cross section made by the reinforcing frame 15 are made of a combined double cross-section.

Accordingly, as the partition plate 21 is provided inside the door 14, the door's own rigidity can be enhanced, and in the event of a fire, thermal deformation such as warping by the flame can be minimized. There will be.

5 is a cross-sectional view showing an arrangement relationship between a door and a door frame in a fire door having excellent heat insulation and insulation performance according to an embodiment of the present invention.

As shown in FIG. 5, the structure of the gasket 26 is prevented from being damaged due to the sharp edge of the door 14 when the door 14 is opened or closed.

To this end, the edge edge portion of the door frame 15 in contact with the door outer panel 13 of the door 14, for example, the edge edge portion in contact with the gasket 26, is bent in a form of chamfering a sharp part. And a chamfer 27 formed therein is formed.

Accordingly, when the door 14 is opened and closed, in particular, when the door 14 is closed, the gasket 26 is scratched or pinched as before, as the chamfer 27 on the door 14 is in close contact with the gasket 26. It will not be damaged, and eventually, the shape of the gasket 26 will be maintained and the durability will be improved, and the degree of closeness of the door 14 will be increased, so that when the door 14 is closed, perfect airtightness can be secured, etc. Will completely block the entry of toxic gases.

6 and 7 are a perspective view and a cross-sectional view showing a frame of a fire door having excellent heat insulation and insulation performance according to another embodiment of the present invention.

6 and 7, the door 14 of the fire door includes a "c" shaped reinforcement 24 installed inside the door to enhance door rigidity.

Here, since the structures of the door inner and outer panels 12, 13, the reinforcing frame 15, and the heat insulating material 11, as well as their coupling relationship, are the same as in one embodiment of the present invention, detailed description thereof will be omitted. I will do it.

The "c" shaped reinforcement 24 is a channel shape having a "c" shaped cross-section, and is installed in a structure that is arranged side by side along the inner surface of the reinforcement frame 15 inside the door 14.

For example, the cross-section of the "C" -shaped reinforcement 24 is arranged in such a way that the open area of the cross-section faces the inner surface of the reinforcement frame 15, and the cross-section of the "C" -shaped reinforcement 24 Since both ends of the open portion are fixed to one side of the inner surface of the reinforcing frame 15, for example, one side of the inner surface of the "c" shaped cross sections 16a and 16b of the reinforcing frame 15, such as "c" The reinforcement 24 is formed in a structure that is integrally coupled to the reinforcement frame 15 while forming a substantially rectangular box-shaped space 23 with the reinforcement frame 15.

Here, the "c" shaped reinforcement 24 can be installed along the four sides of the reinforcement frame 15 forming a square frame structure.

Accordingly, as the "c" shaped reinforcement 24 is installed inside the reinforcing frame 15, a box-shaped space portion 23 is formed on the rim of the four sides of the door 14, and the box-shaped space portion thus constructed ( 23) as the edge frame of the door 14 is formed, the rigidity of the door 14 is strengthened, so that heat deformation or the like can be minimized in the event of a fire, and eventually the door 14 is equipped with a reinforcement frame 15 Will be able to faithfully perform its role as a fire door.

At this time, when the "c" shaped reinforcement 24 is installed by welding on the reinforcement frame 15 side, when the door outer panel 13 is fastened with rivets to the reinforcement frame 15, the "c" shaped reinforcement 24 ), One end of the cross section can be fastened together with a rivet.

On the other hand, even in the case of the door 14 having the "c" shaped reinforcement 24, the partition plate 21 can be applied.

For example, a bracket (not shown) having a separate “b” cross-section is installed on the rear surface of the “c” -shaped reinforcing bar 24 (opposite to the open end of the cross section) by welding or the like, and is partitioned on the bracket thus installed By fastening the edge portion of the plate 21 with rivets, it is possible to install the partition plate 21 inside the door 14, and the interior of the door 14 is also isolated by the partition plate 21 at this time. It can be divided into two zones, the inner region 17 and the outer region 18.

8 is a schematic view showing a method of manufacturing a fire door having excellent heat insulation and insulation performance according to the present invention.

As shown in FIG. 8, here, a process of manufacturing a door made of a rectangular plate structure installed in a door frame of a wall structure is shown.

First, as a first step, a partition plate 21 including a door inner panel 12, a door outer panel 13, and an inner reinforcement 22 is prepared.

Next, as a second step, it is interposed between the door inner panel 12 and the door outer panel 13 to come into contact with the inner surface of the door inner and outer panels 12 and 13 through the front and rear surfaces thereof, as a "c" shape While the cross sections are alternately arranged, a reinforcing frame 15 having a rectangular frame shape having a size corresponding to the size and shape of the outside of the door is prepared while having a cross section of a multi-stage bending type that is continuously connected in one piece.

Next, as a third step, after the reinforcing frame 15 is placed side by side along the edges of all four sides while making contact with the inner surface of the door inner panel 12, reinforcement contacting the door inner panel side 12 The back of the frame 15 is joined by welding.

In this third step, the inner reinforcement 22 serving to support the partition plate 21 when welding the door inner panel 12 and the reinforcement frame 15 is also welded to one side of the inner surface of the reinforcement frame 15 to be coupled. can do.

Next, as a fourth step, the door inner panel 12 and the reinforcing frame 15, which are integrally formed by welding, and the inner reinforcing bar 22, as well as the door outer panel prepared in the first and second steps 13 ) And the partition plate 21 are painted together and dried.

Next, as a fifth step, the primary insulating material 11a is inserted into the inside of the door inner panel 12 and the reinforcing frame 15, which has been painted and dried, that is, the inner region 17, and the reinforcing frame ( 15) After installing the partition plate 21 through rivet fastening to the inner reinforcement 22 fixed to the primary insulation material 11a, the reinforcement frame 15 and the inner side of the partition plate 21, that is, The secondary insulating material 11b is inserted into the outer region 18.

Next, as a sixth step, in the state in which the insertion of the primary and secondary insulation materials 11a and 11b is completed, the door outer panel 13, that is, the door outer panel 13 that has been painted and dried, is reinforced (15). ) When the secondary insulation (11b) is finished by fastening with a rivet on the front side, production of a fire door having excellent heat insulation and insulation performance is completed.

In the manufacturing method of such a fire door, since the inserting step of the insulating materials 11a and 11b proceeds after the painting process, it is possible to prevent the insulating materials 11a and 11b from being contaminated or damaged during the painting process, and consequently, the quality of the insulating material is preserved as well as the original quality. It is possible to improve the performance and quality of the heat insulating materials 11a, 11b, etc., and by providing the partition plates 21 together, the heat transfer performance of the fire door can be delayed and blocked by the heat of the door. Will increase.

As described above, in the present invention, a new fire door with a reinforcement frame having a multi-stage bent section, a partition plate for forming the interior area of the door into two isolated zones, a "c" shaped reinforcement for forming a box-shaped cross section together with the reinforcement frame, etc. By providing, it is possible to enhance the rigidity of the door itself, to secure a long heat transfer path between the inner and outer panels of the door, and to delay and block the heat flow through the inner area of the door. It can minimize heat and delay the rate of heat conduction through the door.

10: door frame
11,11a, 11b: Insulation
12: Door inner panel
13: door outer panel
14: door
15: reinforcement frame
16,16a, 16b, 16c: "C" cross section
17: medial area
18: outer region
19: door handle
20: door hinge
21: partition plate
22: internal reinforcement
23: box-shaped space
24: "U" shaped reinforcement
25: packing groove
26: cross-shaped strip
27: gasket
28: chamfer

Claims (5)

It is installed inside the door frame (10) on the side of the structure wall and can be opened and closed and the door (14) consisting of a door inner panel (12) and a door outer panel (13) filled with an insulating material (11) therein;
The inside and outside of the door has a multi-stage bending cross-section that is arranged side by side along the inside of the edge between the door inner panel 12 and the door outer panel 13 and continuously connects the "c" shaped cross sections 16 in a zigzag form. A rectangular reinforcement frame 15 integrally coupled with the panels 12 and 13;
A partition plate installed in the inner region of the door 14 and parallel to the inner and outer panels 12 and 13 of the door to create two inner zones of the inner region 17 and the outer region 18. 21);
Including, the reinforcing frame minimizes the occurrence of deformation even when high-temperature flame or heat is applied to the door side in the event of a fire, and also uses a multi-staged "c" cross section to move from the door outer panel to the door inner panel. A fire door having excellent heat shielding and insulating performance, characterized in that it serves to secure a long path for heat transfer, and the partition plate serves to delay and block heat transferred through the door interior area and the heat insulating material.
The method according to claim 1,
The partition plate 21 is a fire door having excellent heat insulating and insulating performance, characterized in that it is installed in a structure coupled to the other end of the inner reinforcement 22 extending while being fixed through one end to the reinforcement frame 15 side.
The method according to claim 1,
While being coupled to the inner surface of the reinforcing frame 15, further comprising a "c" shaped reinforcement 24 to form a box-shaped space portion 23 together with the reinforcing frame 15 to enhance the rigidity of the door 14 A fire door having excellent heat insulation and insulation performance.
The method according to claim 1,
The reinforcing frame 15 interposed between the door inner panel 12 and the door outer panel 13 is joined by welding with the door inner panel 12 and riveted with the door outer panel 13. A fire door having excellent heat insulation and insulation performance, which is characterized by being combined.
A method for manufacturing a door made of a rectangular plate structure installed in a door frame of a wall structure,
A first step of preparing a door inner panel, a door outer panel, and a partition plate;
It is interposed between the door inner panel and the door outer panel, and comes into contact with the inner surface of the door inner and outer panels through its front and rear surfaces. A second step of preparing a reinforcement frame having a rectangular frame shape corresponding to the outer size and shape of the door while having;
A third step of welding the reinforcing frame to the inner surface of the door inner panel while adhering along the edges of all four sides, and then welding the rear of the reinforcing frame in contact with the door inner panel side;
A fourth step of drying after the door inner panel and the reinforcement frame, which are combined by welding, are formed, and the door outer panel and the partition plate are painted;
In addition to inserting the primary insulating material inside the door inner panel and the reinforcing frame, which has been painted and dried, the partition plate is installed through riveting on the inner side of the reinforcing frame to close the primary insulating material, and the inner side of the reinforcing frame and the partition plate. A fifth step of inserting a secondary insulation into the;
A sixth step of finishing the secondary insulation by fastening the rivet to the front of the reinforcing frame on the door outer panel after painting and drying after inserting the primary and secondary insulation;
Method of manufacturing a fire door excellent in heat insulation and insulation performance, characterized in that it comprises a.

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