KR20240039360A - Fire door - Google Patents

Abstract

The present invention proposes a fire door structure. The fire door of the present invention includes a condensation prevention frame assembled with first and second horizontal brackets in the horizontal direction of the fire door and first and second vertical brackets in the longitudinal direction of the fire door, and having a receiving portion formed on the inside; an insulating material accommodated in a receiving portion of the condensation prevention frame; a first mounting groove formed in the front and a second mounting groove formed in the rear of the condensation prevention frame by combining the first and second horizontal brackets and the first and second vertical brackets; a front panel mounted on the first mounting groove; and a rear panel mounted on the second mounting groove.

Description

Fire door {Fire door}

The present invention relates to a fire door structure configured to prevent condensation and facilitate the combination of rear panel finishing materials.

Fire doors are mainly used as entrance doors or emergency passage doors of general houses, buildings, apartments, factories, offices, prefabricated temporary buildings, etc., to block external fires from spreading indoors or to prevent fires that occur indoors. It is made of a sturdy metal material to prevent it from spreading to the outside, and physical requirements are required that the entrance or emergency door not be burned or deformed even by strong internal heat in the event of a fire.

This fire door is made up of a front panel (outer panel, front steel plate) and a rear panel (inner panel, rear steel plate) that form the wall of the door, and between the front and rear panels is a honeycomb or grid shape to increase the rigidity of the door. An insulating material (or reinforcing material) consisting of is provided. These insulation materials are installed by means of mounting brackets. Recently, flame retardant synthetic resin plates have been installed as insulation materials or filled with flame retardant materials such as urethane. Additionally, a step is formed on the border of the door that is in close contact with the door threshold, thereby blocking external noise and temperature.

However, conventional fire doors are made of metal, and condensation may occur on the inside or outside of the door in seasons such as summer or winter when the temperature difference between indoors and outdoors is large. This condensation phenomenon does not just cause dew to form on the fire door, but can flow down and spread to adjacent areas, and has various problems such as causing corrosion of the fire door as well as hygienic problems such as mold growth.

Previously, these measures to prevent condensation have been applied to fire doors. However, the condensation prevention structure according to the prior art has a problem in that the fire door structure becomes complicated because the condensation prevention structure is installed on a separate bracket. That is, in addition to the front panel, rear panel, and insulation installation bracket, a condensation prevention bracket was required, and the process of assembling these components was cumbersome.

In addition, because the front and back panels are finished with metal (steel plate), the front or back panel may be damaged, such as being crushed or nicked, depending on the use of the fire door. In this case, the fire door itself, including the damaged front or back panel, must be repaired. It had to be replaced. In these cases, the fire door itself, including the damaged front or back panel, had to be replaced. There is a problem of excessive time and cost incurred because the entire fire door is replaced.

Of course, there is also a process of attaching veneer, such as a finishing material, to the exterior of the front and back panels. However, another structure was needed to attach the veneer to the outside of the panel. As such, the manufacturing process of fire doors cannot be simplified and the overall production is bound to increase further.

Korean Patent No. 10-1870772 (2018. 06. 19, Fire door structure with improved fire resistance and durability and manufacturing method thereof) Korean Patent Publication No. 10-2020-0079859 (2020. 07. 06, fire door device)

The purpose of the present invention was to solve the above problems, and is to provide a fire door that can provide both condensation prevention and insulation functions through a structure that provides an insulating material within the condensation prevention bracket.

Another object of the present invention is to provide a fire door on which the inner surface finishing material (rear panel finishing material) of the fire door can be easily mounted.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

To achieve this purpose, a fire door according to an embodiment of the present invention is assembled with first and second horizontal brackets in the horizontal direction of the fire door and first and second vertical brackets in the longitudinal direction of the fire door and accommodated inside. An additionally formed frame for preventing condensation; an insulating material accommodated in a receiving portion of the condensation prevention frame; a first mounting groove formed in the front and a second mounting groove formed in the rear of the condensation prevention frame by combining the first and second horizontal brackets and the first and second vertical brackets; a front panel mounted on the first mounting groove; It is characterized in that it includes a rear panel mounted on the second mounting groove.

Each of the first and second horizontal brackets according to this embodiment includes a bottom plate having a first width W1 and having a condensation prevention hole; First and second vertical plates formed on left and right sides of the bottom plate; And a horizontal plate formed at the upper end of the second vertical plate in the outer direction and having a second width W2, and extending with protrusions of a predetermined length integrally formed at both ends in the longitudinal direction. 2 The width W2 becomes the depth of the first mounting groove.

Each of the first and second vertical brackets includes: a first vertical plate having a first width W1 and having a condensation prevention hole; a second vertical plate at one end of the first vertical plate; and an extension plate having a second width (W2) to the second vertical plate, wherein the second width (W2) of the extension plate becomes the depth of the first mounting groove.

The first vertical plates of the first and second vertical brackets according to this embodiment are formed to have a third width (W3) that is longer than the first width (W1) of the bottom plates of the first and second horizontal brackets. to form the second mounting groove having a depth equal to the difference between the third width (W3) and the first width (W1), and a connection formed between the first vertical bracket and the second vertical bracket and the side of the insulating material. The protruding piece of the rear panel is inserted into the gap and assembled into the condensation prevention frame.

It further includes fastening means for fastening from the outside to the inside of the protruding piece and the insulating material, avoiding the condensation prevention devices of the first and second vertical brackets.

According to the present invention, since a frame is formed with a condensation prevention device on the outside of the insulating material, there is no need to construct brackets for preventing condensation and insulating effects, which has the effect of simplifying the structure of the fire door.

According to the present invention, a mounting groove for mounting a rear panel used as a finishing material is formed at the rear of the condensation prevention frame, which has the effect of easily completing the rear configuration of the fire door.

According to the present invention, the rear panel can be assembled and separated from the mounting groove, so if the rear panel is damaged, only the rear panel needs to be replaced. Therefore, if the rear panel of an existing fire door is damaged or broken, the entire fire door must be replaced. It has the effect of reducing work time and costs.

1 is a perspective view of a fire door according to an embodiment of the present invention.
Figures 2a and 2b are perspective views of a separated fire door.
Figure 3 is a perspective view of a horizontal bracket constituting the condensation prevention frame of Figure 2.
Figure 4 is a perspective view of a vertical bracket constituting the condensation prevention frame of Figure 2.
Figure 5 is a partial plan view showing a combined state of a horizontal bracket and a vertical bracket.
Figure 6 is a partial perspective view showing a first mounting groove formed on the front of the frame for preventing condensation according to the present invention.
Figure 7 is a partial perspective view showing an example of the rear panel being assembled in the second mounting groove formed on the rear of the condensation prevention frame according to the present invention.

Since the present invention can be modified in various ways and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Spatially relative terms such as below, beneath, lower, above, upper, etc. facilitate the correlation between one element or component and other elements or components as shown in the drawing. It can be used to describe. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the direction shown in the drawings. For example, when an element shown in a drawing is turned over, an element described as below (below, beneath) another element may be placed above (upper) the other element. Accordingly, the illustrative term below may include both downward and upward directions. Elements can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

As used in the present invention, expressions indicating a part such as “part” or “part” mean that the corresponding component is a device that can include a specific function, software that can include a specific function, or a device that can include a specific function. It means that it can represent a combination of and software, but it cannot be said that it is necessarily limited to the expressed functions. This is only provided to help a more general understanding of the present invention, and is provided to those with ordinary knowledge in the field to which the present invention pertains. Various modifications and variations are possible from this description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described below as well as all things that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .

Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings.

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

As shown in FIG. 1, one side of the fire door is coupled to the door frame 1 constructed around the entrance 2 through a fastening means such as a hinge (not shown), so that the entrance 2 moves according to the rotation angle. ) is installed to open or close part or all of it.

In the drawing, symbol 200 denotes the rear panel, and the rear panel is assembled using various fastening methods at the rear of the condensation prevention frame, which will be described below. Examples of fastening methods include fastening means such as bolts, fastening structures using coupling grooves and coupling protrusions, and two or more fastening methods can be applied in combination.

That is, in the case of a conventional fire door, the rear panel is composed of a structure such as a steel plate. In this case, if the rear panel itself is broken or damaged, the fire door 100 must be replaced or the rear panel has no choice but to be used with the broken or damaged part left as is. . However, in this embodiment, the rear panel 200 forming the rear of the fire door 100 is an assembled structure, and if the rear panel 200 is damaged or broken, this can be solved only by replacing the rear panel. As explained below, the rear panel 200 can be assembled to the condensation prevention frame in a simple manner to complete the rear of the fire door 100. The rear panel 200 may be manufactured from various materials regardless of the material of the fire door 100.

For the specific configuration of the fire door, refer to FIGS. 2 to 4.

Figures 2a and 2b are perspective views of a separated fire door.

Referring to FIGS. 2A and 2B, the fire door 100 includes first and second horizontal brackets 112 and 114 on the upper and lower sides, first and second vertical brackets 116 and 118 on the left and right sides, and an insulating material. It includes (120), a rear panel (130) and a front panel (200). In the drawing, reference numerals 112', 114', 116', and 118' are installed on the outer surfaces of the first and second horizontal brackets (112, 114) and the first and second vertical brackets (116, 118) on the left and right sides, respectively. It is a finishing material.

According to FIGS. 2A and 2B, the first and second horizontal brackets 112 and 114 and the first and second vertical brackets 116 and 118 are coupled to each other to form a single square frame 110 with an empty receiving portion. ) is formed. The frame 110 is provided with a plurality of condensation prevention holes to prevent condensation in the fire door 100. Accordingly, this embodiment will be described by referring to the frame made by assembling the horizontal brackets 112 and 114 and the vertical brackets 116 and 118 as a 'condensation prevention frame' 110.

The insulation material 120 may be provided in the receiving portion of the condensation prevention frame 110 formed in this way. At this time, the width of the insulation material 120 should be manufactured to have an appropriate width so that it does not protrude outward from the condensation prevention frame 110. That is, the receiving portion refers to the space inside the width W1 of the bottom plate 112a of the first and second horizontal brackets 112 and 114. The insulating material 120 may be a honeycomb or grid-shaped insulating material or a flame retardant material such as urethane foam. It can be constructed in the form of a panel or filled with a material with insulation/flame resistance.

And looking at Figure 2b, a roughly 'ㄷ' shaped rear panel 130 is mounted on the rear of the anti-condensation frame 110, and a front panel 200 is mounted on the front of the anti-condensation frame 110. The rear panel 130 forms the rear part of the fire door 100, and the front panel 200 forms the front part of the fire door 100. The front panel 200 and the rear panel 130 can be formed of veneer, sheet panel, metal plate, etc. to create various atmospheres. In addition, the front panel 200 and the rear panel 130 can be assembled and separated from the condensation prevention frame 110.

In this embodiment, the front panel 200 is mounted on the first mounting groove 400 formed in front of the condensation prevention frame 110 by assembling the horizontal brackets 112 and 114 and the vertical brackets 116 and 118. , the rear panel 130 is mounted on the second mounting groove 500 formed at the rear of the condensation prevention frame 110.

Refer to FIGS. 3 and 4 for the structures of the horizontal bracket and vertical bracket for forming the first mounting groove 400 and the second mounting groove 500. Figure 3 is a perspective view of a horizontal bracket, and Figure 4 is a perspective view of a vertical bracket. At this time, since the first and second horizontal brackets and the first and second vertical brackets each have the same structure, FIGS. 3 and 4 show only the first horizontal bracket and the first vertical bracket structure.

Referring to FIG. 3, the horizontal bracket 112 or 114 is formed with a bottom plate 112a having a width W1. A condensation prevention hole 300 is formed on the bottom plate 112a. The condensation prevention device 300 may be formed in a specific shape. This embodiment illustrates that it is formed in two predetermined rows in a long rectangular shape. The width, length, installation interval, etc. of this condensation prevention device 300 can be modified in various ways depending on various conditions such as the size and material of the fire door 100. The condensation prevention device 300 refers to a slit or hole formed in a plate to block heat or impede heat transfer. The condensation prevention device 300 prevents condensation from forming on the fire door 100. It can be prevented or minimized.

And a first vertical plate 112b and a second vertical plate 112c are formed on the bottom plate 112a. A plurality of coupling holes 113 for coupling with the rear panel 130 are formed in the first vertical plate 112b. And the second vertical plate 112c is formed to have a higher vertical length than the first vertical plate 112b. A horizontal plate 112d is further formed at the upper end of the second vertical plate 112c in the outward direction, and protrusions 112e of a predetermined length are integrally formed and extended at both ends of the horizontal plate 112d in the longitudinal direction. Therefore, the total length of the horizontal plate 112d and the protrusion 112e is longer than the length of the bottom plate 112a. The width W2 of the horizontal plate 112 becomes the depth of the first mounting groove portion 400.

Referring to FIG. 4, the vertical bracket 116 or 118 is formed with a first vertical plate 116a having a width W1 equal to the width W1 of the bottom plate 112a, and a first vertical plate 116a is formed at one end of the first vertical plate 116a. 2 A vertical plate 116b and an extension plate 116c are formed. The extension plate 116c has a width W2 equal to the width of the horizontal plate 112d. Therefore, the depth of the first mounting groove 400 is determined by the width of the horizontal plate 112d and the extension plate 116c.

Also, a condensation prevention port 300 is formed on the first vertical plate 116a, like the condensation prevention port 300 formed on the bottom plate 112a of the horizontal bracket 112. The condensation prevention hole 300 formed on the first vertical plate 116a is similarly formed in a long rectangular shape. In addition, the width, length, or installation interval of the condensation prevention device 300 formed on the vertical plate 116a may be varied depending on various conditions such as the size or material of the fire door 100. In an embodiment, the condensation prevention holes of the bottom plate 112a and the first vertical plate 116a may have different shapes.

The condensation prevention hole 300 formed on the bottom plate 112a and the first vertical plate 116a reduces the heat transferred from the outside to the inside, and thus can prevent the temperature from rapidly changing, thereby preventing condensation. It can be minimized. And the amount of reduction in heat transferred relative to the initially incoming heat will be adjusted depending on the size or number of the condensation prevention devices 300.

Figure 5 is a partial plan view showing a combined state of a horizontal bracket and a vertical bracket. Referring to Figure 5, the configuration of the second mounting groove can be examined in more detail.

Referring to Figure 5, a horizontal bracket 112 and a vertical bracket 116 are coupled to the side of the horizontal bracket 112 from the outside direction (i.e., the front panel direction) to the inside direction (i.e., the rear panel direction). .

And the first vertical plate 116a of the vertical bracket 116 is formed to have a width W3, which is larger than the width W1 of the bottom plate 112a of the horizontal bracket 112. Therefore, when the horizontal bracket 112 and the vertical bracket 116 are assembled, on the rear side of the condensation prevention frame 110, a rear panel ( A second mounting groove 500 (see FIG. 7) is formed with a predetermined depth (W3-W1) into which 130) can be mounted.

And in front of the condensation prevention frame 100, a first mounting groove 400 is formed having a depth proportional to the width W2 of the horizontal plate 112d of the horizontal bracket 112 (or the width of the extension plate of the vertical bracket). .

Figure 6 is a partial perspective view showing a state in which the first mounting groove is formed on the front of the frame for preventing condensation according to the present invention.

As shown in Figure 6, when the horizontal bracket 112 and the vertical bracket 11 are assembled to form the condensation prevention frame 110, at this time, the horizontal plate 112d of the horizontal bracket 112 and the extension of the second vertical plate 116 A first mounting groove portion 400 having a groove structure is formed so that the front panel 200 can be mounted as much as the width W2 of the plate 116c. Since the insulation material 120 and the rear panel 130 are located in the first mounting groove 400 formed in this way in the inner direction of the fire door 100, the front panel 200 is fitted and mounted in the first mounting groove 400. ) can sufficiently support.

In this way, simply by mounting the front panel 200 to the first mounting groove 400, the front part of the fire door 100 is formed. The inner surface of the front panel 200 is in direct contact with the condensation prevention frame 110 and the insulation material 120.

Figure 7 is a partial perspective view showing an example of the rear panel being assembled in the second mounting groove formed on the rear of the condensation prevention frame according to the present invention.

Referring to FIG. 7, the first vertical plate 116a of the vertical bracket 116 of the condensation prevention frame 100 is formed to be longer than the bottom plate 112a of the horizontal bracket 112. And the insulation material 120 is located in the receiving portion located inside the vertical bracket 116 and the horizontal bracket 112. And a coupling gap 310 of a predetermined thickness is formed between the vertical bracket 116 and the insulating material 120.

In this embodiment, the protruding piece 130a of the rear panel 130 is inserted into the coupling gap 310, and when the protruding piece 130a is inserted, the condensation prevention frame 110 and the rear panel 130 are assembled. Here, the length of the coupling gap 310 and the protruding piece 130a can be set in various ways.

And when the condensation prevention frame 110 and the rear panel 130 are assembled, the first part of the vertical brackets 116 and 118 is installed to prevent the rear panel 130 from being separated or separated from the condensation prevention frame 110. It includes a fastening means such as a screw fastened in the inner direction on the vertical plates (116a, 118a). The fastening means must be fastened to avoid the condensation prevention hole 300 formed on the first vertical plates 116a and 118a, and must pass through the protruding piece 130a of the rear panel 130 from the first vertical plates 116a and 118a. It can be inserted into the interior of the insulation material 120 and fastened.

If the rear panel 130 is subsequently damaged or broken due to use of the fire door 100, the rear panel 130 can be separated from the condensation prevention frame 110 by loosening the fastening means in the opposite direction of the assembly process. After disassembly, simply assemble a new rear panel.

As such, the fire door of the present invention includes a condensation prevention frame with a condensation prevention device, an insulator housed inside the condensation prevention frame, and a front and rear panel mounted on the first and second mounting grooves of the condensation prevention frame. It is composed. Therefore, it is possible to prevent condensation in the fire door while manufacturing the fire door with a simpler structure than before, and the front and back of the fire door can be formed just by combining the front and rear panels in the first and second mounting grooves. . And the front and back panels are assembled with a condensation prevention frame, so even if the front or back panel is broken or damaged, it can be easily replaced.

As described above, the present invention is described with reference to the illustrated embodiments, but these are merely illustrative examples, and those of ordinary skill in the art to which the present invention pertains can make various modifications without departing from the gist and scope of the present invention. It will be apparent that variations, modifications, and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached claims.

100: fire door
112, 114: first and second horizontal brackets
112a: bottom plate 112b: first vertical plate
112c: second vertical plate 112d: horizontal plate 112e: protrusion
113: coupling hole
116. 118: first and second vertical brackets
116a: first vertical plate 116b: second vertical plate
116c: extension plate 120: insulation material
130: rear panel 130a: protruding piece
200: Front panel
300: Condensation prevention device
310: joint gap
400: first mounting groove 500: second mounting groove

Claims (5)

A frame for preventing condensation, which is assembled with first and second horizontal brackets in the horizontal direction of the fire door and first and second vertical brackets in the longitudinal direction of the fire door, and has a receiving portion formed on the inside;
an insulating material accommodated in a receiving portion of the condensation prevention frame;
a first mounting groove formed in the front and a second mounting groove formed in the rear of the condensation prevention frame by combining the first and second horizontal brackets and the first and second vertical brackets;
a front panel mounted on the first mounting groove;
A fire door structure, characterized in that it includes a rear panel mounted on the second mounting groove. According to claim 1,
Each of the first and second horizontal brackets,
A bottom plate having a first width W1 and formed with a condensation prevention hole;
First and second vertical plates formed on left and right sides of the bottom plate; and
A horizontal plate is formed at the upper end of the second vertical plate to have a second width W2 and extends outward, and has protrusions of a predetermined length integrally formed at both ends in the longitudinal direction,
A fire door structure in which the second width (W2) of the horizontal plate becomes the depth of the first mounting groove. According to claim 1,
Each of the first and second vertical brackets,
A first vertical plate having a first width W1 and formed with a condensation prevention hole;
It includes a second vertical plate having a bent plate having a second width W2 formed at one end of the first vertical plate,
A fire door structure in which the second width (W2) of the bent plate becomes the depth of the first mounting groove. According to claim 3,
The first vertical plates of the first and second vertical brackets are,
It is formed to have a third width (W3) longer than the first width (W1) of the bottom plate of the first and second horizontal brackets, and has a depth equal to the difference between the third width (W3) and the first width (W1). Forming the second mounting groove that thins,
A fire door structure, wherein the protruding piece of the rear panel is inserted into a coupling gap formed between the first vertical bracket and the second vertical bracket and a side of the insulating material, and is assembled to the condensation prevention frame. According to claim 4,
A fire door structure further comprising fastening means for fastening from the outside to the inside of the protruding piece and the insulation material, avoiding the condensation prevention devices of the first and second vertical brackets.

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