KR102638502B1 - Through hole fire prevention structure of wall and construction method - Google Patents

Abstract

The present invention relates to a fire protection structure and construction method for penetration holes in a wall. More specifically, the present invention relates to a fire protection structure and construction method for penetration holes formed in the wall of a building. This relates to fire prevention structures and construction methods for penetration holes in walls to prevent flames from spreading through penetration holes in the event of a fire.

Description

{THROUGH HOLE FIRE PREVENTION STRUCTURE OF WALL AND CONSTRUCTION METHOD}

The present invention relates to a fire protection structure and construction method for penetration holes in a wall. More specifically, the present invention relates to a fire protection structure and construction method for penetration holes formed in the wall of a building. This relates to fire prevention structures and construction methods for penetration holes in walls to prevent flames from spreading through penetration holes in the event of a fire.

In general, buildings containing multi-family houses such as apartments are equipped with slabs that divide between floors and walls that divide side spaces, and installation or passage of installations including rainwater pipes, water supply pipes, drain pipes, ventilation pipes, and electric trays on the slabs or walls. A through hole is formed for.

However, such a penetration hole has a problem in that a gap is formed between the installation and when a fire occurs in the building, flame or smoke spreads through the penetration hole, increasing the risk of fire and casualties.

As a prior art that partially improves these problems, Korean Patent Publication No. 10-2018-0137899 (December 28, 2018) discloses a 'penetrating hole fire protection structure'.

However, such a conventional through-hole fire protection structure has a problem in that a gap may be created between the filler injected into the through-hole and the through-hole, or between the filler and the through-hole, as the space between the filler and the through-hole is not effectively airtight.

Republic of Korea Patent Publication No. 10-2018-0137899 (2018.12.28.) ‘Fire prevention structure of penetration hole’

The present invention was created to solve the above-mentioned problems, and the purpose of the present invention is to provide airtightness between the penetration holes and installations including water supply pipes, drain pipes, ventilation ducts, electric trays, etc. that pass through penetration holes formed in the wall of a building. It provides a fire prevention structure and construction method for penetration holes in the wall to prevent flames from spreading through the penetration holes in the event of a fire.

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

In order to achieve the above-described object, the present invention provides a fire protection structure that airtightens between an installation passing through a through hole formed in a wall and the penetration hole, comprising: a first airtight member airtight between the installation and the penetration hole at the front of the wall; A fireproof charging pad surrounding the outside of the installation so that the rear end is in contact with the front of the wall; and a second airtight member that airtightens between the fireproof charging pad and the wall.

In addition, it further includes fire-resistant foam inserted into the through-hole so as to be located on the outside of the installation, and the first airtight member is made of fireproof sealant and is applied to cover between the fire-resistant foam and the perimeter of the through-hole and between the fire-resistant foam and the installation. The second airtight member is made of fireproof sealant and is applied on the outside of the fireproof charging pad to cover the space between the fireproof charging pad and the fireproof foam, or is applied to cover the space between the fireproof charging pad and the wall. Do it as

The fireproof foam according to the present invention is divided into a pair of foam units centered on the installation from a ring-shaped state and joined to the outside of the installation, and a flange protruding outward is formed at the front end, and when inserted into the through hole, Insertion is stopped when the flange contacts the outside of the front end forming the through hole.

The flange according to the present invention protrudes outward from the fireproof charging pad and further includes a pressing means for pressing the flange to the wall, wherein the pressing means includes: a pair of pressure plates disposed on both sides of the installation and in contact with the flange; A clamp fixed to the outside of the installation; A pair of fixing plates fixed to both sides of the clamp and having through holes penetrating the front and rear surfaces; a pressure bar whose rear end is fixed to the pressure plate and whose front end passes through the hole; It is characterized in that it includes an elastic member coupled to the outside of the pressure bar so as to be located between the pressure plate and the fixing plate and pressing the pressure plate to the flange.

The pressing means according to the present invention includes a moving ring coupled to the outside of the pressing bar so as to be movable back and forth so as to be positioned between the elastic member and the fixing plate; And an adjustment member screwed into the through hole and pressurizing the elastic member to the pressure plate according to the tightening rotation while the pressure bar passes inside, so that the flange is in close contact with the wall.

A method of constructing a fire protection structure for a penetration hole in a wall according to the present invention, comprising: a first airtight step of airtightening the space between the installation and the penetration hole on the front side of the wall with a first airtight member; A fire-resistant charging pad installation step of wrapping the fire-resistant charging pad around the outside of the installation so that the rear end is in contact with the front of the wall; A second airtight step of airtightening the space between the rear end of the fireproof charging pad and the wall with a second airtight member; And it further includes a fire-resistant foam insertion step of inserting the fire-resistant foam into the through-hole so that it is located on the outside of the installation before the first air-tightening step, wherein the first air-tight member is inserted between the fire-resistant foam and the wall and the fire-resistant foam. and the installation, and in the second airtight step, the second airtight member is applied between the fireproof filling pad and the fireproof foam, or between the fireproof filling pad and the wall. A through-hole fire protection structure of the wall, characterized in that Provides a construction method.

A method of constructing a fire protection structure for a penetration hole in a wall according to the present invention, comprising: a first airtight step of airtightening the space between the installation and the penetration hole on the front side of the wall with a first airtight member; A fire-resistant charging pad installation step of wrapping the fire-resistant charging pad around the outside of the installation so that the rear end is in contact with the front of the wall; A second airtight step of airtightening the space between the rear end of the fireproof charging pad and the wall with a second airtight member; And a fire-resistant foam insertion step of inserting the fire-resistant foam into the through-hole so that it is located on the outside of the installation before the first airtightness step. The fire-resistant foam insertion step includes ringing the fire-resistant foam so that the inner and outer peripheral surfaces match the shape of the through-hole and the installation. Preparation step of fireproof foam prepared in a shape; A fireproof foam branching step of branching the fireproof foam into the pair of foam units centered on the installation; And a fire-resistant foam insertion step of inserting the fire-resistant foam into a through hole, wherein in the first airtight step, the first airtight member is applied between the fire-resistant foam and the wall and between the fire-resistant foam and the installation, and the secondary airtight In the step, the second airtight member is applied between the fireproof filling pad and the fireproof foam, and after the second airtightness step, the pressurizing means is installed on the installation to press the flange to the wall, further comprising a flange pressurizing step. Provides a construction method for a fire-proof structure with a penetration hole in a wall.

According to the present invention, in the event of a fire, flames, etc., are prevented from spreading through the penetration hole by airtightening the gap between the penetration hole and installations including water supply pipes, drain pipes, ventilation ducts, electric trays, etc. that pass through the penetration hole formed in the wall of the building. There is an effect that can be done.

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

Figure 1 is a side cross-sectional view showing a through-hole fire prevention structure of a wall according to the present invention.
Figure 2 is a side cross-sectional view showing a state in which the fireproof foam in Figure 1 is provided.
Figure 3 is a side cross-sectional view showing another example of the fireproof foam in Figure 2.
Figure 4 is a perspective view showing the fireproof foam in Figure 3.
Figure 5 is a perspective view showing the pressurizing means in the through-hole fire prevention structure of the wall according to the present invention.
Figure 6 is a plan view showing the pressurizing means of Figure 5 installed in an installation.
Figure 7 is a flow chart showing the construction method of the through-hole fire protection structure of the wall according to the present invention.
and
Figure 8 is a flowchart showing another example of a construction method of a fire-proof structure through a wall penetration hole according to the present invention.

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

Referring to Figure 1, the through-hole fire prevention structure (hereinafter referred to as "fire prevention structure") of the wall according to the present invention (100) is a through-hole formed in the interior wall (A) of a building including an apartment complex, etc. It is a fire prevention structure that airtightens between the installation (C) and the penetration hole (B) passing through B), and the first airtight member ( 110), a fireproof charging pad 120 surrounding the outside of the installation (C) in contact with the wall (A), and a second airtight member 130 that airtightens the gap between the fireproof charging pad 120 and the wall (A). can do.

The installation (C) may be composed of a water supply pipe, a drain pipe, a ventilation duct, an electric tray, etc.

Installations (C) may be installed in the building for power supply, water supply, and drainage to each household, etc., and a through hole (B) may be formed in the wall (A) to allow the installation (C) to pass through. .

The fire protection structure 100 according to the present invention provides airtightness between the installation (C) and the penetration hole (B) to prevent flames, etc. from spreading through the penetration hole (B) when a fire occurs.

The first airtight member 110 may be made of fireproof sealant, etc., and can airtighten the space between the installation (C) and the through hole (B) through caulking, etc.

The first airtight member 110 is caulked to cover the perimeter forming the installation (C) and the through hole (B) on either side of the wall (A). In other words, it is applied to cover the installation (C) and the through hole (B). B) can be confidential. Here, one of the two sides of the wall (A) is assumed to be the front for clear explanation of the present invention.

The fireproof charging pad 120 wraps around the outside of the installation (C) so that the rear end is in contact with the front of the wall (A), and wraps around the outside of the installation (C) in a plate-shaped state and is attached to the installation (C) by adhesive tape, etc. It can be fixed as .

The second airtight member 130 may be made of fireproof sealant, etc., and is caulked to cover the area between the rear end of the fireproof charging pad 120 and the wall A through caulking, etc. In other words, while being applied, the fireproof charging pad 120 The space between and the wall (A) can be airtight.

The fire protection structure 100 may further include fire resistant foam 140 inserted between the through hole (B) and the installation (C) as shown in FIGS. 2 to 4.

Fireproof foam 140 can be used when the gap between the through hole (B) and the installation (C) is wide.

The first airtight member 110 is applied to cover the area between the fireproof foam 140 and the perimeter of the through hole (B) and between the fireproof foam 140 and the installation (C), thereby forming the fireproof foam 140 and the wall (A). ) It can be airtight between the fireproof foam (140) and the installation (C).

As shown in FIG. 4, the fireproof foam 140 is a pair of foam units ( 141). For example, the fireproof foam 140 may be cut and branched into a pair of foam units 141 in the vertical direction around the installation C.

A pair of foam units 141 are coupled to the outer upper and lower parts of the installation (C) and can be inserted between the through hole (B) and the installation (C) according to pressure.

The space between the foam units 141 and the foam units 141 can be airtightened with a fireproof sealant or the like when inserted into the through hole (B). The form unit 141 may be branched into a left and right pair centered on the central portion to ensure smooth insertion into the through hole (B).

As shown in FIGS. 3 and 4, the fireproof foam 140 may be formed with a flange 142 protruding outward at the front end.

When the fire-resistant foam 140 is inserted between the through-hole (B) and the installation (C), the flange 142 stops inserting the fire-resistant foam 140 while contacting the outside of the front end forming the through-hole (B). It can be done as much as possible.

The flange 142 can be airtightened with the wall A by the first airtight member 110. In other words, the edge of the flange 142 is fixed to the wall A by the first airtight member 110, and the space between the flange 142 and the wall A can be airtight.

When the rear end of the fireproof charging pad 120 does not go beyond the fireproof foam 140, the second airtight member 130 is installed between the fireproof charging pad 120 and the fireproof foam 140 on the outside of the fireproof charging pad 120. By being applied to cover, the space between the fireproof charging pad 120 and the fireproof foam 140 can be airtight.

When the rear end of the fireproof charging pad 120 leaves the fireproof foam 140, the second airtight member 130 covers the space between the fireproof charging pad 120 and the wall (A) on the outside of the fireproof charging pad 120. As it is applied, the space between the fireproof charging pad 120 and the wall (A) can be made airtight.

The flange 142 may protrude outward from the refractory charging pad 120.

The fire protection structure 100 may further include pressurizing means 160 for pressurizing the flange 142 to the wall A, as shown in FIGS. 5 and 6.

As shown in FIG. 5, the pressing means 160 includes a pair of pressure plates 161 disposed on both sides of the installation C and in contact with the flange 142, a clamp 162 fixed to the outside of the installation C, A pair of fixing plates 163 that are fixed to both sides of the clamp 162 and have holes 163a penetrating the front and rear sides, and a pressure bar whose rear end is fixed to the pressure plate 161 and whose front end passes through the hole 163a (164) and an elastic member 165 coupled to the outside of the pressure bar 164 so as to be positioned between the pressure plate 161 and the fixing plate 163.

The pressure plate 161 may be disposed on both front sides of the flange 142 and come into close contact with the portion where the pair of foam units 141 come into contact.

The clamp 162 is branched from a ring-shaped state to fit the outer peripheral surface of the installation C into a pair of clamp units 162a centered on the installation C, and is connected by a coupler 166 including bolts and nuts. It can be closely adhered to and fixed to the outside of the installation (C).

The fixing plate 163 may have one end fixed to both sides of the clamp 162 and the other end extending outward to face the pressure plate 161 back and forth.

The pressure bar 164 may have its rear end fixed to the front of the pressure plate 161 and its front end protruding forward from the clamp 162 while passing through the through hole 163a.

The elastic member 165 may be made of a spring and is coupled to the outside of the pressure bar 164 so as to be located between the pressure plate 161 and the fixing plate 163 and moves the pressure plate 161 from the fixing plate 163 in the direction of the wall (A). It can be pressurized.

As shown in FIG. 6, the pressing means 160 includes a moving ring 167 and a hole ( 163a), while the pressure bar 164 passes inside and presses the elastic member 165 with the moving ring 167 to the pressure plate 161 according to the tightening rotation, so that the flange 142 is pressed against the wall (A). ) may further include an adjustment member 168 that ensures close contact.

The movable ring 167 can be coupled to the outside of the pressure bar 164 so as to be able to move back and forth while a hole 167a is formed in the plate-shaped central portion.

The through hole 163a may have a thread formed on its inner peripheral surface.

The adjustment member 168 may be screwed into the through hole 163a while threads are formed on the outer peripheral surface.

The adjustment member 168 may have a handle portion protruding outwardly formed at the front end.

The handle portion 168a can smoothly rotate the adjustment member 168 by gripping it with the hand or the like without forming a thread on the outer peripheral surface.

The adjusting member 168 moves in the direction of the wall (A) according to the tightening rotation and presses the moving ring 167 so that the elastic member 165 is contracted and the elastic force on the pressure plate 161 can be applied more strongly. there is.

The flange 142 is in close contact with the wall A by the pressurizing means 160 and may not be separated from the wall A even if the first airtight member 110 falls or is deformed.

Because of this, the fire prevention structure can more effectively prevent flames that may enter between the through hole (B) and the installation (C).

Looking at the construction method of the fire protection structure according to the present invention with reference to Figures 7 and 8, the space between the installation (C) and the through hole (B) on the front of the wall (A) is airtight with the first airtight member (110). The first airtightness step, the fireproof charging pad installation step of surrounding the outside of the installation (C) with the fireproof charging pad 120, and the second airtightness member 130 between the fireproof charging pad 120 and the wall (A). It may include a second confidentiality step.

The construction method of the fireproof structure may further include a fireproof foam insertion step of inserting the fireproof foam 140 into the through hole (B) so that it is located on the outside of the installation (C) before the first airtightness step.

In the fireproof foam insertion step, the fireproof foam preparation step is to prepare the fireproof foam 140 in a ring shape so that the inner and outer peripheral surfaces match the shape of the through hole (B) and the installation (C). The fireproof foam (140) is then inserted into the installation (C). It may include a fire-resistant foam branching step of branching into a pair of foam units 141 at the center and a fire-resistant foam insertion step of inserting the fire-resistant foam 140 into the through hole (B).

In the fireproof foam insertion step, the flange 142 formed at the front end of the fireproof foam 140 comes into contact with the outside of the front end forming the through hole (B), and the insertion into the fireproof foam 140 may be stopped.

In the first airtightness stage, the first airtight member 110 may be applied between the fireproof foam 140 and the wall (A) and between the fireproof foam 140 and the installation (C).

In the fireproof charging pad installation step, the fireproof charging pad 120 may be wrapped around the outside of the installation (C) so that the rear end of the fireproof charging pad 120 is in contact with the front of the wall (A).

In the second airtightness step, the second airtight member 130 may be applied between the fireproof filling pad 120 and the fireproof foam 140, or between the fireproof filling pad 120 and the wall (A).

The construction method of the fireproof structure may further include a flange pressurizing step in which the pressurizing means 160 is installed on the installation C after the second air tightness step to press the flange 142 to the wall A.

At this time, the flange 142 protrudes outward from the fireproof filling pad 120, and in the second airtightness stage, the second airtight member 130 can be applied between the fireproof filling pad 120 and the fireproof foam 140. .

For this reason, the construction method of the fireproof structure is to keep the gap between the installation (C) and the penetration hole (B) that passes through the penetration hole (B) formed in the wall (A) of the building airtight, so that in the event of a fire, flames, etc. are transmitted through the penetration hole (B). You can prevent it from spreading through .

What has been described above is only an example for implementing the through-hole fire prevention structure and construction method of a wall according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following patent claims. Anyone with ordinary knowledge in the field to which the invention pertains will say that the technical spirit of the present invention exists to the extent that various modifications can be made without departing from the gist of the invention.

100: Fire protection structure 110: First airtight member
120: Fireproof charging pad 130: Second airtight member
140: Fireproof foam 141: Foam unit
142: Flange 160: Pressurizing means
161: pressure plate 162: clamp
163: fixing plate 164: pressure bar
165: elastic member 166: coupler

Claims (7)

In a fire protection structure that airtightens between an installation passing through a penetration hole formed in a wall and the penetration hole,
A first airtight member made of fireproof sealant and airtight between the installation and the penetration hole at the front of the wall; A fireproof charging pad made of fireproof sealant and surrounding the outside of the installation so that the rear end is in contact with the front of the wall; a second airtight member that airtightens between the fireproof charging pad and the wall; And it includes fireproof foam inserted into the through hole to be located on the outside of the installation,
The fire-resistant foam is divided into a pair of foam units around the installation from a ring-shaped state and joined to the outside of the installation, and a flange is formed at the front end that protrudes outward and protrudes outward from the fire-resistant charging pad,
It further includes pressurizing means for pressurizing the flange to the wall,
The pressing means includes a pair of pressing plates disposed on both sides of the installation and in contact with the flange; A clamp fixed to the outside of the installation; A pair of fixing plates fixed to both sides of the clamp and having through holes penetrating the front and rear surfaces; a pressure bar whose rear end is fixed to the pressure plate and whose front end passes through the hole; And an elastic member coupled to the outside of the pressure bar to be positioned between the pressure plate and the fixing plate to press the pressure plate to the flange. delete delete delete delete delete As a construction method for the through-hole fire protection structure of the wall of paragraph 1,
A first airtight step of airtightening between the installation and the penetration hole at the front of the wall with a first airtight member;
A fire-resistant charging pad installation step of wrapping the fire-resistant charging pad around the outside of the installation so that the rear end is in contact with the front of the wall;
A second airtight step of airtightening the space between the rear end of the fireproof charging pad and the wall with a second airtight member; and
It includes a fireproof foam insertion step of inserting the fireproof foam into the through hole so that it is located on the outside of the installation before the first airtightness step,
The fireproof foam insertion step is
A fireproof foam preparation step in which the fireproof foam is prepared in a ring shape so that the inner and outer peripheral surfaces match the shape of the through hole and the installation;
A fireproof foam branching step of branching the fireproof foam into the pair of foam units centered on the installation; and
It includes a fireproof foam insertion step of inserting the fireproof foam into the through hole,
In the first airtightness step, the first airtight member is applied between the fireproof foam and the wall and between the fireproof foam and the installation,
In the second hermetic step, the second hermetic member is applied between the refractory filling pad and the refractory foam,
A method of constructing a through-hole fire protection structure of a wall, characterized in that it further comprises a flange pressurizing step of installing the pressurizing means on an installation after the second airtightening step to press the flange to the wall.

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