KR20240025791A - Fire door constituted to easily change direction of knob to left or right - Google Patents

Abstract

The fire door configured to facilitate changing the left and right directions of the handle according to the present invention is fixedly installed on the wall of a building, and is a door frame member composed of a rectangular shape including an upper door frame, a lower door frame, and a side door frame made of metal. and a door member rotatably coupled to the door frame member and made of metal in a square shape, an upper sliding rail portion formed on the upper door frame of the door frame member, and a lower door frame of the door frame member. A lower sliding rail portion formed, an upper door frame hinge member slidably coupled to the upper sliding rail portion, a lower door frame hinge member slidably coupled to the lower sliding rail portion, and the upper door frame hinge member and a fixing member for fixing the lower door frame hinge member to the door frame member, an upper door hinge member coupled to the upper end from the side of the door member, and a lower door hinge member coupled to the lower end from the side of the door member. The door member is formed symmetrically up and down with respect to the height direction center line, the interior of the door member is filled with a flame retardant material, and a handle portion is disposed on a side of the door member where the height direction center line is located. , Characterized in that the upper door frame hinge member and the lower door frame hinge member can be coupled to the upper door hinge member or the lower door hinge member in a state in which the door member is flipped up and down.
According to the present invention, the position of the handle can be accurately changed to the left or right depending on the situation at the fire door installation site, construction at the fire door installation site becomes more accurate and convenient, and the fire door can be installed quickly and accurately.
In addition, the overall mechanical support strength of the fire door can be increased, and twisting or deformation of the fire door can be prevented even in the case of long-term operation.

Description

Fire door constructed to facilitate changing the left and right direction of the handle {FIRE DOOR CONSTITUTED TO EASILY CHANGE DIRECTION OF KNOB TO LEFT OR RIGHT}

The present invention relates to a fire door. More specifically, the handle can be selectively placed on the right or left side depending on the site situation, making installation and construction in the field more accurate and convenient, and absorbing vibration while absorbing the overall mechanical properties of the fire door. This invention relates to a fire door configured to easily change the left and right directions of the handle portion configured to increase strength.

Fire doors are mainly used in common houses, factories, offices, etc. to prevent fire from spreading.

Typically, the fire door is made of a sturdy metal material so that it is not deformed even if there is a pressure difference between the inside and outside of the fire door due to a fire.

Additionally, a flame retardant material is disposed inside the fire door to prevent combustion even when exposed to high heat caused by a flame.

In addition, the fire door must have various mechanical properties to prevent the propagation and spread of flame.

The fire door is disposed within a door frame formed in a square shape, and a hinge for rotation of the fire door is installed between the door frame and the fire door.

In addition, the fire door is equipped with a handle for user entry and exit, and the fire door is configured to be fastened to or released from the door frame by rotating the handle.

However, depending on the situation at the installation site of the fire door, there may be cases where the handle for entry and exit must be installed in a different position on the fire door.

In other words, there are cases where the handle part must be installed on the left side of the fire door in a space on one side of the fire door, or on the right side depending on the situation.

If the handle part is installed on the left side of the fire door in the space on one side of the fire door, the result is that it is installed on the right side in the space on the opposite side of the fire door. If the handle part is installed on the right side of the fire door in the space on one side of the fire door, the handle part is installed on the right side of the fire door in the space on one side of the fire door. As a result, it is installed on the left side in the space opposite the fire door.

However, in the case of a fire door, due to its unique function and weight, the fire door and the door frame must be placed in an accurate relative position. If this is not done, problems such as tilting of the fire door may occur due to long-term operation.

Therefore, rather than changing the positions of the handle and hinge at the site where the fire door is to be installed, it is preferable to configure the position so that the positions can be changed depending on the site situation at the manufacturing factory stage.

The purpose of the present invention is to provide a fire door that is configured to easily change the left and right directions of the handle portion, which is configured to accurately change the position of the handle of the fire door.

Another object of the present invention is to provide a fire door that is configured to easily change the left and right directions of the handle portion so that construction at the fire door installation site is accurate and convenient.

Another object of the present invention is to provide a fire door configured to easily change the left and right direction of the handle portion configured to increase the overall mechanical strength of the fire door.

Another object of the present invention is to provide a fire door that is configured to easily change the left and right directions of the handle portion, which is configured to prevent the fire door from being twisted or deformed even when operated for a long period of time.

Another object of the present invention is to provide a fire door that is configured to easily change the left and right direction of the handle portion, which is configured to cushion vibrations generated in the event of an earthquake, etc.

The left and right fire door according to the present invention for achieving the above object is fixedly installed on the wall of a building, and includes a door frame member formed in a rectangular shape including an upper door frame, a lower door frame, and a side door frame made of metal, A door member rotatably coupled to the door frame member and made of metal in a square shape, an upper sliding rail portion formed on the upper door frame of the door frame member, and a lower door frame of the door frame member. A lower sliding rail portion, an upper door frame hinge member slidably coupled to the upper sliding rail portion, a lower door frame hinge member slidably coupled to the lower sliding rail portion, the upper door frame hinge member and a lower portion. It includes a fixing member for fixing the door frame hinge member to the door frame member, an upper door hinge member coupled to the upper end from the side of the door member, and a lower door hinge member coupled to the lower end from the side of the door member. , the door member is formed to be symmetrical up and down with respect to the height direction center line, the interior of the door member is filled with a flame retardant material, and a handle portion is disposed on a side of the door member where the height direction center line is located. It is characterized in that the upper door hinge member and the lower door hinge member can be selectively coupled to the upper door frame hinge member or the lower door frame hinge member in a state in which the door member is flipped up and down.

Preferably, receiving recesses are formed on both sides of the door frame member to accommodate the door frame locking portion of the handle portion installed on the door member, and a cover member is detachably coupled to the receiving recesses.

Additionally, the upper door frame hinge member and the lower door frame hinge member may include a door frame hinge portion that is protruded from the center and a door frame coupling portion that is formed laterally from the door frame hinge portion.

Additionally, the upper sliding rail portion and the lower sliding rail portion may be formed integrally with the upper door frame and the lower door frame.

Here, both ends of the upper sliding rail portion and the lower sliding rail portion may be fixed to the upper door frame and the lower door frame.

Preferably, both ends of the upper sliding rail portion and the lower sliding rail portion are coupled to both the upper door frame and the side door frame.

Additionally, a sliding opening may be formed in the upper sliding rail portion and the lower sliding rail portion for passage of the door frame hinge portion and the door frame coupling portion.

Also, a coupling means is fastened to the door frame coupling portion, so that the upper door frame hinge member and the lower door frame hinge member can be coupled to the upper door frame and the lower door frame.

Preferably, when the upper sliding rail portion and the lower sliding rail portion are coupled to the upper door frame and the lower door frame, both ends of the sliding opening are configured to reach the center position of the side door frame.

Here, the sliding opening may include a central sliding opening formed at the center of the sliding rail portion and an upper sliding opening formed at an upper portion of the central sliding opening.

Preferably, the interior of the upper sliding rail portion and the lower sliding rail portion is filled with a filler.

Here, the filler may be formed by mixing a flame retardant material with a base material made of synthetic resin.

In addition, the filler may be filled inside the upper sliding rail portion and the lower sliding rail portion with a strength reinforcing member inserted.

Preferably, the strength reinforcing member is formed of a metal bar having a rectangular cross-section.

Alternatively, the strength reinforcing member may be formed of a metal bar having a “T” shaped cross section.

Here, uneven portions may be formed on the surface of the strength reinforcing member.

Additionally, the filler may be heat-resistant silicone.

Additionally, the flame retardant material may be arranged to form a continuous hexagonal shape such as a honey comb.

According to the present invention, the handle position can be accurately changed to the left or right depending on the situation at the fire door installation site.

In addition, construction at the fire door installation site becomes more accurate and convenient, allowing fire doors to be installed quickly and accurately.

Additionally, the overall mechanical support strength of the fire door can be increased.

Additionally, even in the case of long-term operation, the fire door can be prevented from twisting or deforming.

Additionally, it can buffer vibrations generated in the event of an earthquake or the like.

The attached drawings are intended to help you understand the technical idea of the present invention along with the detailed description of the invention, and therefore the present invention should not be construed as limited to the matters shown in the drawings.
Figure 1 is a front view of a fire door configured to facilitate changing the left and right directions of the handle portion according to an embodiment of the present invention;
Figure 2 is a perspective view of the fire door,
Figure 3 is a front view of a fire door according to another embodiment of the present invention;
Figure 4 is a perspective view of the fire door,
Figure 5 is a partial perspective view of the lower right side of the fire door;
Figure 6 is an exploded perspective view of the lower right side;
Figure 7 is a partial perspective view of the upper right side of the fire door;
Figure 8 is an exploded perspective view of the upper right side;
Figure 9 is an exploded perspective view of the receiving concave portion formed in the side door frame of the fire door;
Figure 10 is a partial perspective view of the lower part of the fire door;
Figure 11 is a partial cross-sectional view taken along line AA of Figure 10;
Figure 12 is a partial cross-sectional view along line BB of Figure 10;
Figure 13 is a perspective view of a strength reinforcing member according to an embodiment of the present invention;
Figure 14 is a perspective view of a strength reinforcing member according to another embodiment of the present invention;
Figure 15 is a partial perspective view of a hinge member according to another embodiment of the present invention;
Figure 16 is an exploded perspective view of the hinge member;
Figure 17 is a perspective view of a sliding rail portion according to another embodiment of the present invention.

Hereinafter, the configuration of the present invention will be described in detail with reference to the attached drawings.

Prior to this, the terms used in this specification and claims should not be construed limited to their dictionary meaning, and based on the principle that the inventor can appropriately define the concept of the term in order to explain his or her invention in the best way, , should be interpreted with meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention and do not express the entire technical idea of the present invention, so various equivalents that can replace them at the time of filing the present application It should be understood that variations and variations may exist.

Figure 1 is a front view of a fire door configured to easily change the left and right direction of the handle according to an embodiment of the present invention, Figure 2 is a perspective view of the fire door, and Figure 3 is a front view of a fire door according to another embodiment of the present invention. , FIG. 4 is a perspective view of the fire door, FIG. 5 is a partial perspective view of the lower right side of the fire door, FIG. 6 is an exploded perspective view of the lower right side, FIG. 7 is a partial perspective view of the upper right side of the fire door, and FIG. 8 is a partial perspective view of the upper right side of the fire door. It is an exploded perspective view, Figure 9 is an exploded perspective view of the receiving concave portion formed in the side door frame of the fire door, Figure 10 is a partial perspective view of the lower part of the fire door, Figure 11 is a cross-sectional view of part A-A of Figure 10, Figure 12 is a partial cross-sectional view taken along line B-B of Figure 10, Figure 13 is a perspective view of a strength reinforcement member according to an embodiment of the present invention, Figure 14 is a perspective view of a strength reinforcement member according to another embodiment of the present invention, and Figure 15 is a perspective view of the strength reinforcement member according to another embodiment of the present invention. It is a partial perspective view of a hinge member according to another embodiment of the present invention, Figure 16 is an exploded perspective view of the hinge member, and Figure 17 is a perspective view of a sliding rail portion according to another embodiment of the present invention.

Referring to Figures 1 to 4, the fire door configured to facilitate changing the left and right directions of the handle according to the present invention is fixedly installed on the wall of a building and includes an upper door frame (2) and a lower door frame (4) made of metal. A door frame member 10 having a rectangular shape including side door frames 6 and 8, and a door member 20 rotatably coupled to the door frame member 10 and made of metal and having a square shape. and an upper sliding rail portion 30 formed on the upper door frame 2 of the door frame member 10, and a lower sliding rail portion formed on the lower door frame 4 of the door frame member 10 ( 40), an upper door frame hinge member 50 slidably coupled to the upper sliding rail portion 30, and a lower door frame hinge member 60 slidably coupled to the lower sliding rail portion 40. and fixing members 55 and 65 for fixing the upper door frame hinge member 50 and the lower door frame hinge member 60 to the door frame member 10, and on the side of the door member 20. It includes an upper door hinge member 70 coupled to the upper end, and a lower door hinge member 80 coupled to the lower end from the side of the door member 20, wherein the door member 20 has a height direction center line (C). It is formed symmetrically up and down, the interior of the door member 20 is filled with a flame retardant material, and a handle portion is provided on the side of the door member 20 where the height direction center line C is located. (22) is disposed, and the upper door frame hinge member 50 and the lower door frame hinge member 60 are connected to the upper door hinge member 70 or the lower door hinge in a state in which the door member 20 is flipped up and down. It is characterized in that it is configured to be coupled to the member 80.

The door frame member 10 is formed in an overall long rectangular shape and is fixedly installed on the wall of the entrance part of the building.

The door frame member 10 is made of a metal material such as steel or stainless steel, and a space is formed inside to accommodate the door member 20.

The door frame member 10 is configured in a rectangular shape including an upper door frame 2, a lower door frame 4, and both side door frames 6 and 8.

The door member 20 is made of a metal material such as steel or stainless steel and is formed overall in a rectangular shape.

In the case of a fire door, the inside of the door member 20 may be filled with a flame retardant material. In this case, in order to increase the overall support strength of the door member 20, the flame retardant material has a continuous hexagonal shape such as a honey comb. It can be arranged to achieve this.

An upper sliding rail portion 30 is formed on the upper door frame 2 of the door frame member 10.

Additionally, a lower sliding rail portion 40 is formed on the lower door frame 4 of the door frame member 10.

The upper and lower sliding rail parts 30 and 40 are formed in the upper door frame 2 and the lower door frame 4 in a horizontal direction.

Thus, both ends of the upper sliding rail part 30 and the lower sliding rail part 40 are fixed to the upper door frame 2 and the lower door frame 4, respectively.

At this time, as shown in Figures 1 and 7, preferably, both ends 32 of the upper sliding rail part 30 are coupled from the upper door frame 2 to the side door frames 6 and 8. do.

In addition, both ends 42 of the lower sliding rail portion 40 are coupled from the lower door frame 4 to the side door frames 6 and 8.

Typically, the upper door frame (2), lower door frame (4), and side door frames (6, 8) are formed in the form of a hollow tube of approximately square shape.

In this state, the upper door frame 2, lower door frame 4, and side door frames 6 and 8 are combined to form the door frame member 10 having an overall square shape.

Parts of the door frame member 10 that are vulnerable to deformation include the boundary between the upper door frame 2 and the side door frames 6 and 8, the lower door frame 4 and the side door frames 6, 8) It is the border between them.

However, in the present invention, as described above, both ends 32 of the upper sliding rail part 30 and both ends 42 of the lower sliding rail part 40 are connected to the upper and lower door frames 2 and 4 and the side door, respectively. It is joined across frames (6, 8).

Thus, the boundary portions vulnerable to deformation are reinforced by both ends 32 of the upper sliding rail portion 30 and both ends 42 of the lower sliding rail portion 40, thereby increasing the mechanical strength of the boundary portion. It can be greatly increased.

In the event of a fire, a very large pressure difference is generated between the inside and outside of the door member 20.

If a fire occurs inside the door member 20, the interior is in a state close to a vacuum. At this time, due to the pressure applied to the door member 20, the door frame member 20 is It can be transformed.

If the door frame member 20 is deformed, a situation may occur in which the door member 20 cannot be opened smoothly.

However, by preventing deformation of the door frame member 10 by increasing the mechanical strength of the boundary portions that are most vulnerable to deformation as described above, the phenomenon of the door member 20 not being opened can be prevented.

Additionally, the upper door frame hinge member 50 is slidably coupled to the upper sliding rail portion 30.

In addition, the lower door frame hinge member 60 is slidably coupled to the lower sliding rail portion 40.

Thus, the upper door frame hinge member 50 and the lower door frame hinge member 60 can be moved in the left and right directions in the upper sliding rail portion 30 and lower sliding rail portion 40, respectively.

The lower sliding rail portion 40 and the lower door frame hinge member 60 are formed in the same shape as the upper sliding rail portion 30 and the upper door frame hinge member 50.

As shown in Figures 6 and 8, the upper door frame hinge member 50 and the lower door frame hinge member 60 include door frame hinge parts 52 and 62 formed by protruding from the center, and the door frame hinge part ( It may include door frame coupling portions 54 and 64 formed toward the side from 52 and 62).

With the hinge axes 522 and 622 installed on the door frame hinge portions 52 and 62, hinge rollers 524, 526, 624 and 626 that rotate relative to the hinge axes 522 and 622 are coupled.

And, the door hinge members (70, 80) are fixed to the hinge shafts (522, 622) through hinge pins (73, 83).

Thus, relative rotation between the door frame hinge members 50 and 60 and the door hinge members 70 and 80 is possible, and as a result, the door member 20 can be rotated.

The coupling configuration between the door frame hinge members 50 and 60 and the door hinge members 70 and 80 according to another embodiment of the present invention is shown in FIGS. 15 and 16.

In the above embodiment, with the hinge shaft 622 installed on the door frame hinge portion (lower door frame hinge portion 62 shown), the hinge rollers 624 and 626 that rotate relative to the hinge shaft 622 are coupled. .

At this time, the hinge rollers 624 and 626 can rotate relative to the hinge axis 622, but are coupled so that they do not deviate from the hinge axis 622.

In this state, the door hinge member 80 is fixed to the hinge roller 626 through a bolt 83.

Thus, relative rotation between the door frame hinge member 60 and the door hinge member 80 is possible, and as a result, the door member 20 can be rotated.

As described above, the upper door frame hinge member 50 and the lower door frame hinge member 60 can be moved in the left and right directions in the upper sliding rail part 30 and the lower sliding rail part 40, respectively. The upper sliding rail portion 30 and the lower sliding rail portion 40 are provided with sliding openings 34, 36, 44, 46 for passage of the door frame hinge portions 52, 62 and the door frame coupling portions 54, 64. are formed.

The sliding openings (34, 36, 44, 46) include a central sliding opening (34, 44) formed at the center of the sliding rail portion (30, 40) and an upper portion formed at the upper part of the central sliding opening (34, 44). It includes sliding openings 36 and 46.

The upper sliding openings 36 and 46 may be formed in the form of long holes at the upper part of the sliding rail parts 30 and 40, or may be formed in the form of long concave parts in the left and right directions.

Therefore, when the sliding rail parts (30, 40) are coupled to the upper door frame (2) and the lower door frame (4), the open portion of the long concave portion is connected to the upper door frame (2) and the lower door frame (4). It may be closed by the door frame 4 and consequently be configured to take the form of a long hole in the left and right directions.

In this state, the door frame hinge portions (52, 62) of the door frame hinge members (50, 60) protrude outward through the central sliding openings (34, 44), and the door frame coupling portions (54, 64) protrudes upward through the upper sliding openings 36 and 46.

In addition, fixing members 55, 65 such as bolts are fastened to the door frame coupling portions 54, 64, so that the upper door frame hinge member 50 and the lower door frame hinge member 60 are connected to the upper door frame. It can be combined with (2) and the lower door frame (4), respectively.

Preferably, when the upper sliding rail part 30 and the lower sliding rail part 40 are coupled to the upper door frame 2 and the lower door frame 4, the sliding openings 34, 36, 44, 46 ), both ends are configured to reach the central position of the side door frames (6, 8).

That is, the sliding openings 34, 36, 44, and 46 formed along the horizontal direction in the upper sliding rail part 30 and the lower sliding rail part 40 pass through the side end portion of the door member 20. , It is formed up to the lower part of the central part of the side door frame (6, 8).

Therefore, by ensuring that the hinge axes 522 and 622 for rotation of the door member 20 are located outside both end portions of the door member 20, the door member 20 is rotated at a larger angle. It can be open.

Meanwhile, when the door member 20 is formed in a rectangular shape that is long up and down, the handle portion 12 is disposed in the middle of the height of the door member 20.

Therefore, as a result, the door member 20 is formed vertically symmetrical with respect to the height direction center line C.

Also, at the side end of the door member 20, the upper door hinge member 70 is coupled to the upper portion, and the lower door hinge member 80 is coupled to the lower portion.

In this state, the upper door hinge member 70 is coupled to the hinge rollers 524 and 526 of the door frame hinge portion 52 moved to the right, and the lower door hinge member 80 is coupled to the door frame hinge moved to the right. When coupled to the hinge rollers 624 and 626 of the branch 62, the handle portion 22 is positioned on the left side as shown in FIG. 1.

Then, with the door member 20 inverted (rotated) up and down, the upper door hinge member 70 is coupled to the hinge rollers 624 and 626 of the door frame hinge portion 62 moved to the left, When the lower door hinge member 80 is coupled to the hinge rollers 524 and 526 of the door frame hinge portion 52 moved to the left, the handle portion 22 is positioned on the right side as shown in FIG. 2 .

Therefore, with the door member 20 in its original state or in a state in which it is upside down, the upper door hinge member 70 and the lower door hinge member 80 are connected to the upper door frame hinge member 50 or the lower door frame hinge. It can be selectively coupled to the member 60.

In the present invention, the upper door frame hinge member 50 and the lower door frame hinge member 60 are configured to move along the upper sliding rail portion 30 and the lower sliding rail portion 40 as described above, According to the invention, there is no need to accurately measure height and level and install door members and hinge members at the fire door installation site.

In other words, it is a simple operation of pushing and fixing the upper door frame hinge member 50 and the lower door frame hinge member 60 to the left or right on the upper sliding rail part 30 and the lower sliding rail part 40, which is a fire door. You can change the position of the handle.

Therefore, changing the position of the handle portion 22 at the fire door installation site can be performed very easily and accurately.

Meanwhile, receiving recesses 7 and 9 are formed on both sides of the door frame member 10 to accommodate the door frame locking portion 24 of the handle portion 22 installed on the door member 20. .

Additionally, as shown in FIG. 9, a cover member 90 is detachably coupled to the receiving recesses 7 and 9.

In addition, the cover member 90 at the position of the door frame locking part 24 is separated and removed according to the position of the handle part 22, so that the door frame locking part 24 can be accommodated.

Thus, the door frame locking portion 24 is accommodated in the receiving recesses 7 and 9 from which the cover member 90 has been removed, thereby allowing the door member 20 to keep the door frame member 10 in a closed state. The door member 20 can be opened from the door frame member 10 by holding or rotating the handle portion 22.

Meanwhile, as shown in FIG. 17 (lower sliding rail part 400,000 shown), in another embodiment of the present invention, the upper sliding rail part 30 and the lower sliding rail part 40 are connected to the upper door frame (2). It can be formed integrally with the and lower door frame (4).

That is, in a state in which the upper sliding rail portion 30 and the lower sliding rail portion 40 are integrally formed to protrude from the upper door frame 2 and the lower door frame 4, the sliding openings 34, 44, 36, 46) may be formed.

Meanwhile, the inside of the upper sliding rail part 30 and the lower sliding rail part 40 may be filled with a filler 110.

The filler 110 may be formed by mixing a flame retardant material such as stone powder with a base material made of synthetic resin material such as heat-resistant silicone.

In addition, as shown in FIG. 12, the upper sliding rail portion 30 and the lower sliding rail portion 40 may be filled with the filler 110 while the strength reinforcing member 120 is inserted.

The strength reinforcing member 120 may be formed of a metal bar such as steel or alloy steel with a rectangular cross-section.

Alternatively, as shown in FIG. 13, the strength reinforcing member 120 may be formed of a metal bar such as steel or alloy steel with a “T”-shaped cross section.

Therefore, the support strength of the door frame member 10 can be significantly increased by filling the filler 110 with the strength reinforcing member 120 inserted into the inner space of the sliding rail portions 30 and 40.

Additionally, the filler 110 serves as a cushioning material, thereby cushioning shock or vibration applied from the outside in the event of an earthquake or the like.

In order to prevent the filler 110 from being separated from the strength reinforcing member 120 even in the case of a long period of time, as shown in FIG. 14, an uneven portion ( 122) can be formed.

Thus, by increasing the bonding area between the surface of the filler 110 and the strength reinforcing member 120 through the uneven portion 122, it is possible to prevent separation while increasing the buffering effect through the filler 110.

Above, the terms used in the embodiments of the present invention have the same meaning as generally understood by those skilled in the art to which the present invention pertains.

Although the present invention has been described with limited examples and drawings, the examples are not intended to limit but illustrate the technical idea of the present invention, so the technical idea of the present invention is not limited to these, and the present invention belongs to A person skilled in the art will be able to make various modifications and variations within the scope of equivalency of the technical spirit of the present invention and the scope of the claims below.

Therefore, the scope of protection of the present invention should be interpreted in accordance with the scope of the patent claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

And, if it is within the scope of the purpose of the present invention, all of the components may be configured by selectively combining one or more of them.

The above-mentioned terms “included” or “consisted of” should be interpreted to mean that the corresponding component may be included, and that other components may be additionally included.

2: Upper door frame
4: Lower door frame
6, 8: Side door frame
10: Door frame member
20: Door member
30: Upper sliding rail part
40: Lower sliding rail part
50: Upper door frame hinge member
60: Lower door frame hinge member
70: Upper door hinge member
80: Lower door hinge member
90: Cover member
110: Filler
120: Strength reinforcement member

Claims (18)

A door frame member that is fixedly installed on the wall of a building and has a rectangular shape including an upper door frame, a lower door frame, and a side door frame made of metal;
a door member rotatably coupled to the door frame member and made of metal and having a square shape;
an upper sliding rail portion formed on the upper door frame of the door frame member;
a lower sliding rail portion formed on the lower door frame of the door frame member;
an upper door frame hinge member slidably coupled to the upper sliding rail portion;
a lower door frame hinge member slidably coupled to the lower sliding rail portion;
a fixing member for fixing the upper door frame hinge member and the lower door frame hinge member to the door frame member;
an upper door hinge member coupled to the upper end from the side of the door member;
It includes a lower door hinge member coupled to the lower end at the side of the door member,
The door member is formed vertically symmetrically with respect to the height direction center line,
The interior of the door member is filled with flame retardant material,
A handle portion is disposed on a side of the door member where the height direction center line of the door member is located,
Changing the left and right direction of the handle, characterized in that it is configured to selectively couple the upper door hinge member and the lower door hinge member to the upper door frame hinge member or the lower door frame hinge member in a state in which the door member is flipped up and down. A fire door configured to facilitate this. According to claim 1,
A receiving recess is formed on both sides of the door frame member to accommodate the door frame locking part of the handle installed on the door member, and a cover member is detachably coupled to the receiving recess in the left and right directions of the handle part. Fire doors configured to be easily changed. According to claim 2,
The upper door frame hinge member and the lower door frame hinge member include a door frame hinge portion protruding from the center and a door frame coupling portion formed laterally from the door frame hinge portion to facilitate changing the left and right direction of the handle portion. Fire doors constructed. According to claim 3,
A fire door configured to facilitate changing the left and right directions of the handle, characterized in that the upper sliding rail portion and the lower sliding rail portion are formed integrally with the upper door frame and the lower door frame. According to claim 3,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that both ends of the upper sliding rail portion and the lower sliding rail portion are fixed to the upper door frame and the lower door frame. According to claim 4 or 5,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that a sliding opening is formed in the upper sliding rail portion and the lower sliding rail portion for passage of the door frame hinge portion and the door frame coupling portion. According to claim 6,
A coupling means is fastened to the door frame coupling portion, so that the upper door frame hinge member and the lower door frame hinge member are coupled to the upper door frame and the lower door frame. Fire door. According to claim 7,
When the upper sliding rail portion and the lower sliding rail portion are coupled to the upper door frame and the lower door frame,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that both ends of the sliding opening are formed to the center position of the side door frame. According to claim 8,
A fire door configured to facilitate changing the left and right directions of the handle, characterized in that the sliding opening includes a central sliding opening formed in the center of the sliding rail portion and an upper sliding opening formed in an upper part of the central sliding opening. According to claim 8,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the interior of the upper sliding rail portion and the lower sliding rail portion is filled with a filler. According to claim 10,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the filler is formed by mixing a flame retardant material with a base material made of synthetic resin. According to claim 11,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the filler is filled inside the upper sliding rail portion and the lower sliding rail portion with a strength reinforcing member inserted. According to claim 12,
A fire door configured to facilitate changing the left and right directions of the handle, characterized in that the strength reinforcing member is formed of a metal bar having a rectangular cross-section. According to claim 12,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the strength reinforcing member is formed of a metal bar with a "T" shaped cross section. According to claim 14,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that uneven portions are formed on the surface of the strength reinforcing member. According to claim 5,
A fire door configured to facilitate changing the left and right directions of the handle, characterized in that both ends of the upper sliding rail portion and the lower sliding rail portion are configured to be coupled to both the upper door frame and the side door frame, respectively. According to claim 11,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the filler is heat-resistant silicon. According to claim 1,
A fire door configured to facilitate changing the left and right direction of the handle, characterized in that the flame retardant material is arranged to form a continuous hexagonal shape such as a honey comb.

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