KR20220144016A - Protecting cover for lower sill of fire door - Google Patents

Abstract

The present invention relates to a protecting cover for a lower sill of a fire door. A first sill cover and a second sill cover of the protecting cover are individually connected to the upper part of a first upper plate and the upper part of a second upper plate of a lower sill of a fire door, wherein the lower sill of the fire door is formed to be stepped around a gasket. The gasket is exposed to the outside through an opening between the first sill cover and the second sill cover. So, the protecting cover for a lower sill of a fire door does not need to be removed in fire inspection and can be remained until pre-inspection for an occupant, thereby minimizing damage to the lower sill. The protecting cover for a lower sill of a fire door is installed in the upper part of the lower sill to temporarily protect the lower sill of the fire door. The lower sill of the fire door comprises: the first upper plate; the second upper plate formed to be stepped at one end of the first upper plate; a first vertical plate connecting a rear end of the first upper plate and a front end of the second upper plate; a protrusion plate extended from one end of the first upper plate, and forming a gasket accommodation groove in the lower part; and the gasket inserted into the gasket accommodation groove. The protecting cover for a lower sill of a fire door comprises: the first sill cover connected to the upper surface of the protrusion plate and the first upper plate; and the second sill cover connected to the upper surface of the second upper plate. The opening is formed between the first sill cover and the second sill cover by being penetrated by a front end of the gasket to protrude forward.

Description

Protecting cover for lower sill of fire door

The present invention combines the first seal cover and the second seal cover of the retaining cover on the first upper plate and the second upper plate of the lower seal of the fire door provided with a step difference based on the gasket, respectively, but between the first and second seal covers By exposing the gasket to the outside through the opening, it is not necessary to remove it during the fire inspection, and it can be kept until the occupant's prior inspection, thereby minimizing damage to the lower seal.

In order to prevent the spread of fire and reduce damage caused by fire in the event of a fire in a building, fire zones are divided by floor, area, or use, and fire doors are installed in each fire zone.

Fire doors are obligatory to be installed on the front door of households such as apartments or office buildings.

These fire doors must secure airtightness in order to satisfy standards such as heat loss prevention, insulation performance, and dew condensation prevention performance for efficient energy management of buildings as well as smoke control performance to prevent infiltration of smoke in case of fire.

To this end, a gasket for maintaining airtightness by closely adhering to the edge of the fire door is installed on the door frame, ie, the frame, on which the fire door is installed.

The general fire door construction process proceeds in the following order: lightweight wall construction → fire door frame installation → wall plasterboard finishing → floor stone and tile construction → wall finishing construction.

After completing the construction of the fire door in this way, a smoke control test is performed during the fire inspection, and then, defects are repaired through the occupant's pre-inspection process.

In general, a protective film is attached to the upper surface of the lower sill of the fire door frame to protect the surface of the lower sill. However, even if the protective film is attached, the frame lower seal may be damaged due to the movement of workers or equipment, the impact of heavy objects, etc. during the subsequent process after the fire door frame is installed. To prevent this, in the past, the fire door frame was temporarily covered with a retaining steel plate.

However, during a fire inspection, a smoke control test should be performed with the gasket installed. For this reason, it is common to remove the retaining steel plate attached to the frame lower seal immediately before the firefighting inspection and install the gasket.

In this case, the lower sill of the fire door frame is exposed to the outside without a retaining plate for about 15 to 45 days from the time of the fire inspection to the time of the preliminary inspection of the occupants. Therefore, damage such as bending, twisting, sagging, dents, and scratches occurs in the lower seal due to the movement of the worker or the drop of a heavy object.

If the lower seal is damaged in this way, remove the surrounding floor and wall finishing materials, break the mortar, and then replace the lower seal. Therefore, it is very difficult to repair defects, and there is a problem that takes a lot of time and money.

US 10-2124639 B1

In order to solve the above problems, the present invention is to provide a fire door lower seal retaining cover that does not need to be removed for a fire inspection.

Accordingly, an object of the present invention is to provide a fire door lower seal retaining cover that can be maintained until the occupant's pre-inspection period, thereby minimizing damage to the fire door lower seal.

The present invention according to a preferred embodiment provides a first upper plate, a second upper plate formed to be stepped from one end of the first upper plate to a lower portion, and a first connecting the rear end of the first upper plate and the front end of the second upper plate. 1 Vertical plate, a protrusion plate extending from one end of the first upper plate to form a gasket accommodating groove in the lower portion, and a gasket inserted and installed in the gasket accommodating groove, the lower portion of the lower portion for temporarily maintaining the seal. a first seal cover installed on the upper portion of the seal and coupled to upper surfaces of the first upper plate and the protruding plate; and a second seal cover coupled to an upper surface of the second upper plate. It provides a fire door lower seal retaining cover, characterized in that the opening is formed between the first seal cover and the second seal cover so that the front end of the gasket protrudes through the front.

The present invention according to another preferred embodiment provides a fire door lower seal retaining cover, characterized in that the first fixing piece caught on the lower portion of the protruding plate is bent at the end of the protruding plate side of the first seal cover.

The present invention according to another preferred embodiment is a fire door lower seal reinforcement, characterized in that the end of the first fixing piece is bent downward from the first fixing piece and a first fastening piece fixed to the first vertical plate by a fastening member is formed. provide a cover.

In the present invention according to another preferred embodiment, a second fastening piece fixed to the first vertical plate by a fastening member is formed at the end of the first vertical plate side of the second seal cover. provide a cover.

The present invention according to another preferred embodiment provides a fire door lower seal retaining cover, characterized in that a pair of the fastening pieces are provided at both ends in the width direction of the seal cover, respectively, and the opening is formed between the pair of fastening pieces. .

In the present invention according to another preferred embodiment, a protective film is attached to the upper surface of the lower seal, and the first seal cover and the second seal cover are attached to the upper portion of the retaining film by an adhesive. Provides a comfort cover.

The present invention according to another preferred embodiment is provided with a third upper plate which is formed to be stepped to the lower part at one end of the second upper plate of the lower seal and is connected to the second upper plate by a second vertical plate, and the second seal cover A step portion bent to a shape corresponding to the third upper plate is provided on one side of the step portion, and a cutting tool insertion groove is provided at an upper end of the step portion in a horizontal direction.

According to the present invention, the first seal cover and the second seal cover of the retaining cover are respectively coupled to the upper portions of the first upper plate and the second upper plate of the lower seal of the fire door provided with a step difference based on the gasket, but between the first and second seal covers By exposing the gasket to the outside through the opening of the fire door, it is not necessary to remove it during the fire inspection, and it can be kept until the occupant's prior inspection, thereby providing a fire door lower seal protection cover that can minimize damage to the lower seal.

1 is a perspective view showing a lower seal of a fire door.
Figure 2 is a cross-sectional view showing the installation state of the present invention fire door lower seal retaining cover.
3 is a perspective view showing a comfort cover.
Fig. 4 is a perspective view showing the coupling relationship of the comfort cover;
Figure 5 is a perspective view showing a coupled state of the comfort cover.
6 is a perspective view showing a coupling relationship of a first seal cover provided with a first fixing piece.
Figure 7 is a cross-sectional view showing the coupled state of the retaining cover shown in Figure 6;
8 is a perspective view showing a first seal cover provided with a first fastening piece.
9 is a perspective view showing a coupled state of the first seal cover shown in FIG.
10 is a perspective view showing a second seal cover provided with a second fastening piece.
Figure 11 is a perspective view showing a coupled state of the second seal cover shown in Figure 10.
12 is a cross-sectional view showing a comfort cover attached to the top of the nourishment film.
13 is a perspective view showing a second seal cover provided with a cutting tool insertion groove.

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

1 is a perspective view showing the lower seal of the fire door, Figure 2 is a cross-sectional view showing the installation state of the fire door lower seal retaining cover of the present invention. And Figure 3 is a perspective view showing the comfort cover, Figure 4 is a perspective view showing the coupling relationship of the comfort cover, Figure 5 is a perspective view showing the coupling state of the comfort cover.

1 to 5, the present invention fire door lower seal retaining cover is a first upper plate 11, a second upper plate 12 formed to be stepped from one end of the first upper plate 11 to the lower part. ), a first vertical plate 14 connecting the rear end of the first upper plate 11 and the front end of the second upper plate 12, extending from one end of the first upper plate 11, and forming a gasket at the bottom The lower seal (1) in order to temporarily protect the lower seal (1) of the fire door comprising the protrusion plate (111) forming the accommodating groove (100) and the gasket (10) inserted and installed in the gasket accommodating groove (100). ) to be installed on the upper portion, the first seal cover 31 coupled to the upper surface of the first upper plate 11 and the protruding plate 111; and a second seal cover 32 coupled to the upper surface of the second upper plate 12; An opening 30 through which the front end of the gasket 10 penetrates and protrudes toward the front is formed between the first seal cover 31 and the second seal cover 32.

An object of the present invention is to provide a fire door lower seal retaining cover that does not require removal for fire inspection and can be kept until the occupant's prior inspection time, thereby minimizing damage to the fire door lower seal (1).

The retaining cover 3 is not permanently installed on the upper part of the lower seal 1, but is temporarily attached before the occupant's prior inspection to prevent the lower seal 1 from being damaged during construction.

As shown in FIG. 2 , the fire door 2 is formed so that the lower end of the fire door 2 is stepped in steps to secure airtightness and sound insulation. The lower seal 1 of the fire door frame has a shape corresponding to this and the upper end is stepped in a stepwise manner.

Specifically, the lower seal 1 of the fire door has a first upper plate 11 and a second upper plate 12 formed with a step difference, and the lower end of the fire door 2 is on the upper part of the second upper plate 12 with a low height. is located

The ends of the first upper plate 11 and the second upper plate 12 are interconnected by a first vertical plate 14 .

A gasket 10 for securing airtightness and sound insulation is provided on one surface of the first vertical plate 14 . The gasket 10 is in close contact with the lower front surface of the fire door 2 .

A protrusion plate 111 extending toward the fire door 2 is provided on the first upper plate 11 to couple the gasket 10 .

A gasket receiving groove 100 having a U-shaped cross section is formed by the lower portion of the protruding plate 111 , one surface of the first vertical plate 14 , and the upper surface of the second upper plate 12 .

The gasket 10 formed long in the longitudinal direction of the lower seal 1 is inserted into the gasket accommodating groove 100, the upper part is on the lower surface of the protruding plate 111, and the lower part is on the upper surface of the second upper plate 12. It can be fixed tightly.

The first upper plate 11, the protruding plate 111, and the first vertical plate 14 may be integrally bent.

The lower seal retaining cover 3 may be made of a metal plate.

The lower seal retaining cover 3 is formed in a shape corresponding to the upper surface of the lower seal 1 as a whole.

The lower seal retaining cover 3 consists of a first seal cover 31 on the first upper plate 11 side and a second seal cover 32 on the second upper plate 12 side with respect to the gasket 10 . is composed separately.

The first seal cover 31 is configured to cover the first upper plate 11 and the upper surface of the protrusion plate 111 extending from the first upper plate 11 .

The second seal cover 32 is configured to cover the second upper plate 12 .

The second seal cover 32 is installed at a lower level than the first seal cover 31 . Accordingly, a gap is formed between the first seal cover 31 and the second seal cover 32 to form an opening 30 .

The front end of the gasket 10 installed inside the gasket receiving groove 100 of the lower seal 1 is exposed to the outside of the retaining cover 3 through the opening 30 .

Since the gasket 10 can be installed at the same time as the lower seal 1 is installed, or the lower seal 1 can be installed after the gasket 10 is coupled to the lower seal 1 in advance, the construction process can be simplified. In addition, since there is no need to remove the retaining cover 3 because the smoke control test can be performed while the gasket 10 is installed during the fire inspection, the lower seal 1 can be completely protected until the occupant is inspected.

The gasket 10 may be coupled to the lower seal 1 before or after installation of the retaining cover 3 .

Here, the front surface of the lower seal 1 means the side on which the front plate 16 is provided.

The front end of the gasket 10 refers to the side opposite to the front plate 16 , that is, the side where the gasket 10 is exposed to the outside.

6 is a perspective view illustrating a coupling relationship of a first seal cover provided with a first fixing piece, and FIG. 7 is a cross-sectional view illustrating a coupling state of the retaining cover shown in FIG. 6 .

As shown in FIGS. 6 and 7 , a first fixing piece 311 caught on the lower portion of the protruding plate 111 may be bent at the end of the first seal cover 31 on the protruding plate 111 side. have.

To fix the first seal cover 31 to the upper portions of the first upper plate 11 and the protruding plate 111 of the lower seal 1, the protruding plate 111 side of the first seal cover 31 A first fixing piece 311 that is bent inwardly and is caught on the protruding plate 111 may be formed at an end thereof.

In addition, the front end of the first upper plate 11 of the lower seal 1 is provided with a front plate 16 vertically bent downward. In order to firmly fix the first seal cover 31, the other end of the first seal cover 31 may be formed by bending a second fixing piece 312 in close contact with the front plate 16 in a vertical downward direction. .

The first seal cover 31 may be closely fixed to the lower seal 1 from both sides by the first fixing piece 311 and the second fixing piece 312 .

Since the first seal cover 31 is fixed to the lower seal 1 by the elasticity of the first fixing piece 311 and the second fixing piece 312 , installation and disassembly are easy.

8 is a perspective view illustrating a first seal cover provided with a first fastening piece, and FIG. 9 is a perspective view illustrating a coupling state of the first seal cover shown in FIG. 8 .

8 and 9, the end of the first fixing piece 311 is bent downward from the first fixing piece 311 and fixed to the first vertical plate 14 by a fastening member 33. A first fastening piece 313 to be formed may be formed.

When the fixing force of the first seal cover 31 is insufficient with only the elastic force of the first and second fixing pieces 311 and 312 , the first vertical plate 14 is bent downwardly at the end of the first fixing piece 311 . A first fastening piece 313 in close contact with the front surface may be further provided.

The first fastening piece 313 may be fixed to the first vertical plate 14 by a fastening member 33 such as a piece.

The first fastening piece 313 may be provided at both left and right ends of the lower seal 1 in the width direction.

When removing the retaining cover 3 for occupant inspection, the first seal cover 31 may be removed after the fastening member 33 is removed.

A gasket 10 is installed on one surface of the first vertical plate 14 to cover a hole for coupling the fastening member 33 . Therefore, even if the fastening member 33 is fastened or removed, there is no problem in appearance.

10 is a perspective view illustrating a second seal cover provided with a second fastening piece, and FIG. 11 is a perspective view illustrating a coupling state of the second seal cover shown in FIG. 10 .

As shown in FIGS. 10 and 11 , the second seal cover 32 is bent upward at the end of the first vertical plate 14 side and is fixed to the first vertical plate 14 by the fastening member 33 . A second fastening piece 321 may be formed.

The second seal cover 32 may also be fixed to the first vertical plate 14 of the lower seal 1 by a fastening member 33 such as a piece.

To this end, a second fastening piece 321 that is bent upward and is in close contact with the front surface of the first vertical plate 14 may be formed at an end of the second seal cover 32 on the side of the first vertical plate 14 .

The second fastening piece 321 may be provided simultaneously with the first fastening piece 313 , or only the second fastening piece 321 may be provided alone.

When both the first fastening piece 313 and the second fastening piece 321 are provided, the second fastening piece 321 may be provided to overlap the first fastening piece 313 and one fastening member 33 ) can be fixed to the lower seal (1) at the same time.

The second fastening piece 321 may also be provided at left and right both ends of the lower seal 1 in the width direction.

8 and 10, a pair of the fastening pieces 313 and 321 are provided at both ends of the seal covers 31 and 32 in the width direction, respectively, and the opening 30 is a pair of fastening pieces ( 313 and 321) may be formed.

Since the retaining cover 3 is installed together with the gasket 10, when the first fastening piece 313 or the second fastening piece 321 is provided on one surface of the first vertical plate 14, the gasket 10 is It is provided on the front surface of the fastening pieces (313, 321).

In this case, in order to remove the retaining cover 3 later, there is a hassle of temporarily removing the gasket 10, removing the retaining cover 3, and then reinstalling the gasket 10 again.

In order to solve this inconvenience, the fastening pieces 313 and 321 are formed in a narrow band shape, and are provided at both ends of the first fixing piece 311 or the second seal cover 32 to be spaced apart from each other. can do. In addition, the gasket 10 may be inserted and installed between the first fastening pieces 313 on both sides or between the second fastening pieces 321 .

That is, the opening 30 is formed in the space between the both fastening pieces 313 and 321 .

The gasket 10 is made of a material with high elasticity. Therefore, the gasket 10 having a length corresponding to the width of the lower seal 1 can be reduced by the width of the fastening pieces 313 and 321 to be inserted and installed in the opening 30 between the fastening pieces 313 and 321 on both sides.

When the retaining cover 3 is removed later, the gasket 10 is restored to its original state again by the elastic force. Accordingly, the gasket 10 is provided over the entire width of the first vertical plate 14 to maintain airtightness.

12 is a cross-sectional view showing a health care cover attached to the top of the retaining film.

As shown in FIG. 12 , a retaining film 18 is attached to the upper surface of the lower seal 1 , and the first seal cover 31 and the second seal cover 32 are bonded to the upper surface of the lower seal 1 by an adhesive 34 . It may be attached to the top of the retaining film (18).

The retaining cover 3 can be attached to the upper portion of the lower seal 1 by an adhesive 34 such as silicone.

When the retaining film 18 is attached to the upper surface of the lower seal 1, even if the retaining cover 3 is attached with the adhesive 34, the paint of the lower seal 1 may be peeled off when the retaining cover 3 is removed. there is no

When the retaining cover 3 is fixed to the lower seal 1 by the adhesive 34, the retaining cover 3 is attached to the retaining film 18, so when the retaining cover 3 is removed, the retaining film 18 With the retaining cover (3) is removed.

13 is a perspective view showing a second seal cover provided with a cutting tool insertion groove.

As shown in FIGS. 12 and 13 , one end of the second upper plate 12 of the lower seal 1 is formed to be stepped downward, and the second upper plate 12 and the second upper plate 12 are formed by the second vertical plate 15 . A third upper plate 13 to be connected is provided, and a step portion 322 bent in a shape corresponding to the third upper plate 13 is provided on one side of the second seal cover 32 , and the step difference is provided. A cutting tool insertion groove 323 may be formed in the upper end of the part 322 in a horizontal direction.

In general, a door gasket 21 is attached to the lower end of the fire door 2 to protrude in order to increase airtightness.

A second vertical plate 15 and a third upper plate 13 may be formed on the lower seal 1 by bending an end of the second upper plate 12 for adhesion of the door gasket 21 .

On the other hand, since the retaining film 18 is in the form of a sheet, it is easy to remove when peeled off from one end. However, when the retaining cover 3 is attached with the adhesive 34 to the retaining film 18, the retaining cover 3 may not be easy to remove together with the retaining film 18 because it is difficult to deform by manpower.

In this case, the adhesive 34 may be cut with a cutting tool such as a knife to remove the retaining cover 3 from the retaining film 18 and then the retaining film 18 may be removed.

At this time, when the first fixing piece 311 is not provided, the first seal cover 31 can cut the adhesive 34 by inserting a blade between the protruding plate 111 and the first seal cover 31 . do.

However, since the second seal cover 32 is formed lower than the first seal cover 31, inserting a cutting tool between the second upper plate 12 and the second seal cover 32 to cut the adhesive 34 is impossible.

Accordingly, the cutting tool insertion groove 323 may be formed at the upper end of the stepped portion 322 by using the stepped portion 322 bent to correspond to the third upper plate 13 of the lower seal 1 .

The cutting tool insertion groove 323 may be formed to be long in the width direction so as to be spaced apart from each other. The adhesive 34 may be applied at a position corresponding to the cutting tool insertion groove 323 .

In order to protect the edge portion where the third upper plate 13 and the rear plate 17 of the lower seal 1 meet, the end of the second seal cover 32 has a third fixing to surround one surface of the rear plate 17 . A piece 324 may be formed.

1: lower seal 10: gasket
100: gasket receiving groove 11: first upper plate
111: protrusion plate 12: second upper plate
13: third upper plate 14: first vertical plate
15: second vertical plate 16: front plate
17: rear panel 18: retaining film
2: Fire door 21: Door gasket
3: retaining cover 30: opening
31: first seal cover 311: first fixing piece
312: second fixed piece 313: first fastening piece
32: second seal cover 321: second fastening piece
322: step part 323: cutting tool insertion groove
324: third fixing piece 33: fastening member
34: adhesive

Claims (7)

The first upper plate 11, the second upper plate 12 formed to be stepped from one end of the first upper plate 11 to the lower part, the rear end of the first upper plate 11 and the second upper plate 12 ), a first vertical plate 14 connecting the front ends, a protrusion plate 111 extending from one end of the first upper plate 11 to form a gasket accommodating groove 100 in the lower portion, and the gasket accommodating groove ( 100) to be installed on the upper part of the lower seal (1) to temporarily protect the lower seal (1) of the fire door comprising the gasket (10) inserted and installed in the
a first seal cover 31 coupled to the upper surfaces of the first upper plate 11 and the protruding plate 111; and
a second seal cover 32 coupled to the upper surface of the second upper plate 12; and an opening 30 through which the front end of the gasket 10 penetrates and protrudes toward the front is formed between the first seal cover 31 and the second seal cover 32. comfort cover.
In claim 1,
The lower seal retaining cover of the fire door, characterized in that the first fixing piece (311) caught on the lower portion of the protrusion plate (111) is bent at the end of the first seal cover (31) on the protruding plate (111) side.
In claim 2,
At an end of the first fixing piece 311, a first fastening piece 313 bent downward from the first fixing piece 311 and fixed to the first vertical plate 14 by a fastening member 33 is formed. Fire door lower seal protection cover, characterized in that.
In claim 1,
At the end of the second seal cover 32 on the side of the first vertical plate 14, a second fastening piece 321 that is bent upward and fixed to the first vertical plate 14 by the fastening member 33 is formed. Fire door lower seal protection cover.
In claim 3 or 4,
A pair of the fastening pieces (313, 321) is provided at both ends of the seal cover (31, 32) in the width direction, respectively, and the opening 30 is formed between the pair of fastening pieces (313, 321). Fire door lower seal protection cover.
In claim 1,
A retaining film 18 is attached to the upper surface of the lower seal 1 , and the first seal cover 31 and the second seal cover 32 are attached to the upper surface of the retaining film 18 by an adhesive 34 . Fire door lower seal protection cover, characterized in that it is attached.
In claim 6,
One end of the second upper plate 12 of the lower seal 1 is provided with a third upper plate 13 formed to be stepped downward and connected to the second upper plate 12 by a second vertical plate 15 . A step portion 322 bent to a shape corresponding to the third upper plate 13 is provided on one side of the second seal cover 32, and a cutting tool insertion groove is provided at the upper end of the step portion 322. (323) Fire door lower seal retention cover, characterized in that it is formed in the horizontal direction.

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