KR102581792B1 - Vertical bar connector of curtain wall with fire protection and insulation function between floors - Google Patents

Abstract

The present invention includes an injection molded product having an insulating function in a connecting material inserted into a portion where the vertical bars of a curtain wall are connected vertically, and protruding protrusions are formed on the outer peripheral surface of the extruded product at equal intervals to protrude in the up and down directions. By spacing the vertical bars apart, heat conducted between the vertical bars is blocked, and one side of the upper or lower part of the injection molded product is closed to block the hollow part formed inside the vertical bar to provide interlayer insulation, and the top or bottom of the sleeve By closing the wall or installing fire-resistant foam material, the curtain wall's vertical bar connection material has fire prevention and insulation functions between floors, which improves the fire prevention function between floors by blocking heat and flames that move between floors through the hollow part of the vertical bar in the event of a fire. It is intended to provide.

Description

Vertical bar connector of curtain wall with fire protection and insulation function between floors}

The present invention relates to a curtain wall connecting material, and more specifically, in the event of a fire, the vertical bars of the curtain wall act as a chimney to block heat and flame from moving through the vertical bars, and conduct conduction between the vertical bars at the portion where the vertical bars are connected. This relates to a vertical bar connection material for a curtain wall that has fire prevention and insulation functions between floors, which can not only block heat from being generated, but also provide insulation between floors.

While the pillars and beams that form the framework of a building are structures that support the vertical load applied to the building and the horizontal load caused by wind or earthquakes, the exterior wall that divides the interior and exterior, especially in high-rise buildings, does not support the load and only supports the interior. It is a non-bearing wall that divides only the outdoor space and is called a curtain wall because the wall only acts as a partition like a curtain. Curtain walls function to block rain or wind from the outside, block noise and heat, and improve lighting by covering pillars and beams with glass to prevent them from being exposed to the outside, and have an exterior function.

Curtain walls are usually installed with long vertical bars installed in the vertical direction, and horizontal bars are inserted and fixed in the horizontal direction in the space between the vertical bars installed adjacent to each other, so that the horizontal bars and vertical bars form a grid shape. Finishing materials such as glass panels are installed. Horizontal bars and vertical bars have the advantage of reducing the load on the building and shortening the construction period because the same size is mass-produced at the factory and only installed on site. However, aluminum The disadvantage is that heat loss is large due to the bar made of material and the glass wall. However, it is possible to compensate for some of the heat loss by attaching an insulation film to the surface of the glass wall, but since the bar that makes up the frame is made of aluminum, there is still a problem of high energy loss due to heat conduction. Therefore, in order to increase the energy rating of the window, a curtain wall is required. Technology development to improve insulation is urgently needed.

On the other hand, vertical bars have a limit to their length, so they cannot be constructed with a single vertical bar from low to high floors, so vertical bars have no choice but to be assembled by connecting them to each other. A sleeve made of metal is inserted into the hollow part of the vertical bar and the screw is tightened to assemble the vertical bars located up and down. Therefore, the strength of the part where the vertical bars are connected is the weakest, and there is a problem that heat is conducted upward and downward through the sleeve at the connecting part of the vertical bar, causing heat loss. If a fire occurs on one floor of the building, the There is a serious problem that the hollow shape inside the bar acts as a chimney, causing heat and flame to instantly move to higher floors through the vertical bar, causing the fire to spread.

In addition, most of the technologies for curtain walls that have appeared so far were aimed at improving the insulation performance of the bars themselves, so they cannot block the heat conducted between the vertical bars at the joints of the vertical bars, and cannot prevent fire. When this occurred, there was a problem that heat and flame traveling between floors through the hollow part formed inside the vertical bar could not be blocked.

The applicant (inventor) of the present invention has been designing, manufacturing, and constructing in the window field for decades and has developed many technologies to solve the problems of existing curtain walls, and has registered patent number 1692286, “Strength reinforcement and insulation structure.” "Curtain wall frame with", Patent registration No. 1754619 "Curtain wall frame with improved insulation and bonding strength", Patent registration No. 1808504 "Vertical bar connection material of curtain wall", Patent registration No. 2073602 "Improved insulation and assembly ability" We have received favorable reviews for patenting, commercializing and constructing “Shikikin Curtain Wall,” etc., and are still spending a lot of time and money developing technology related to curtain walls, and through this series of processes, we have arrived at the present invention.

The present invention was developed to solve the above problems, and the purpose of the present invention is to provide an injection molded product made of a material with an insulating function in a connecting material inserted into the area where the vertical bars of the curtain wall are connected vertically, and to provide an injection molded product. On the outer circumferential surface, protruding protrusions are formed at equal intervals to protrude in the up and down directions, thereby separating the vertical bars arranged up and down by the protruding protrusions, thereby blocking heat conducted between the vertical bars and closing one side of the upper or lower part of the injection molded product. The hollow part formed inside the vertical bar is blocked to insulate the layers, and the top or bottom of the sleeve is closed or fire-resistant foam is installed to block heat and flames that move between floors through the hollow part of the vertical bar in the event of a fire. The purpose is to provide a vertical bar connection material for a curtain wall with improved inter-floor fire prevention and insulation functions.

The vertical bar connecting material of the curtain wall with inter-floor fire prevention and insulation function according to the present invention has a hollow square shape in cross-section, one of the upper and lower sides is closed, and is made of a material with an insulating function. It is configured to include an injection molded product that is installed to connect the vertical bars to each other by covering all of the inner peripheral surfaces of the vertical bars located at the upper and lower parts; The vertical bars located at the upper and lower parts are assembled while being spaced at a certain distance in the middle of the injection molded product.

Preferably, the injection-molded product has vertical protrusions protruding in the vertical direction at the mid-height portion in the vertical direction at equal intervals along the outer peripheral surface of the injection-molded product, and the vertical bars located at the upper and lower parts are spaced apart from each other by the vertical protrusions. combined into a state.

Preferably, the injection molded products are separated into upper and lower parts at the center in the vertical direction, each upper and lower injection molded product has one of the upper and lower sides closed, and the ends of the upper and lower injection molded products are in contact with each other. It is placed, assembled and installed.

Preferably, in the vertical central portion of the vertical protrusion formed on the outer peripheral surface of the injection-molded product, a horizontal protrusion is further formed in the horizontal direction along the outer peripheral surface of the injection-molded product between the vertical protrusions, and the horizontal protrusion and the vertical protrusion are on the outer peripheral surface of the injection-molded product. are formed at the same height.

Preferably, horizontal protrusions protruding outward are further formed at the ends of each vertical protrusion formed to protrude at the end portion of the upper and lower injection molded products, and the horizontal protrusions are further formed along the outer peripheral surface of the ends of the upper and lower separated injection molded products. The and vertical protrusions are formed at the same height on the outer peripheral surface of the injection molded product, and the upper and lower injection molded products are assembled and installed by placing the horizontal protrusions in contact with each other.

Preferably, a sleeve made of a metal material that is open at the top and bottom and has a hollow square cross-section is further inserted on the inner peripheral surface of the injection molded product, and the length of the sleeve is shorter than the length of the injection molded product. It is formed and assembled by combining the sleeve inserted into the inner peripheral surface of the injection molded product so that it spans both the vertical bars located at the upper and lower parts.

Preferably, a blocking cover is further installed to block and close the open upper or lower part of the sleeve, and an insulating material is further inserted into the inside of the sleeve.

Preferably, a fire-resistant foam material is further installed between the closed upper or lower surface of the injection molded product and the top or bottom of the sleeve, or inside the sleeve.

The vertical bar connector of the curtain wall according to the present invention is composed of an injection molded product made of a material with an insulating function and a metal sleeve. The injected product with an insulating function is located between the outer surface of the sleeve and the inner surface of the vertical bar, and the injected product is located between the outer surface of the sleeve and the inner surface of the vertical bar. Since the vertical bars located above and below are installed apart from each other by the protruding protrusion formed on the outer circumferential surface of the , heat conducted between the vertical bars in the vertical direction is blocked, thereby improving interlayer insulation.

In addition, since the upper or lower surface of the injection molded product is closed, and an insulating material such as glass wool is inserted inside the sleeve, heat moving between layers is blocked through the internal hollow part of the vertical bar, thereby providing interlayer insulation. It can be improved. In addition, since it is a structure in which fire-resistant foam is inserted and installed inside the top or bottom of the injection molded product, when a fire occurs and heat is generated, the fire-resistant foam expands as it foams, and the fire-resistant material closes the inner peripheral surface of the sleeve, preventing heat and flame. Because it is blocked, inter-layer insulation and fire prevention function can be significantly improved.

In addition, since the upper and/or lower ends of the metal sleeve are blocked with a blocking cover, the internal hollow shape of the vertical bar is closed at the part where the vertical bars are connected, so that in the event of a fire, it is possible to move between floors through the internal hollow shape of the vertical bar. By blocking heat and flames, the fire prevention function between floors can be significantly improved.

In addition, protruding protrusions are formed at equal intervals along the outer peripheral surface of the injection molded product, so vertical bars arranged adjacent to each other are installed spaced apart by the protruding protrusions, and since the protruding protrusions are finished with silicone, heat conducted between the vertical bars is prevented. Not only does it improve insulation by blocking heat, but even if the slab that forms the floor of each floor of the building sags or if there is a slight sagging in the vertical bar due to the weight of glass, etc., the hanging sill can absorb it.

Figure 1 is a diagram schematically showing a curtain wall.
Figure 2 is a diagram showing a state in which vertical bars are connected and disassembled with a connecting material.
Figure 3a is a diagram showing an embodiment in which the injection molded product is manufactured as an integrated piece.
Figure 3b is a diagram showing an example in which the injection molded product is manufactured as a separate type.
Figure 3c is a diagram showing an example in which fire-resistant foam material is inserted inside the injection molded product.
Figure 4 is a diagram showing an embodiment in which the inside of the sleeve is filled with an insulating material.

The biggest technical feature of the curtain wall vertical bar connector according to the present invention is that an injection-molded material with an insulating function is inserted into the area where the vertical bars are connected and installed so that the vertical bars are spaced apart, so that the heat conducted between the vertical bars and the internal hollow part of the vertical bars ( In addition, the inter-layer insulation is greatly improved by blocking heat moving through the middle space, and the top and/or bottom of the sleeve inserted into the injection molded product is closed with a metal blocking cover, so that in the event of a fire, the inter-layer insulation is maintained through the internal hollow part of the vertical bar. It has an inter-layer fire prevention function by blocking moving heat and flame, and fire-resistant foam is inserted inside the top or bottom of the injection molded product or inside the sleeve, so that when a fire occurs, the fire-resistant foam is foamed and the fire-resistant material blocks the inside of the sleeve. It has inter-floor insulation and fire prevention functions.

The curtain wall is made of aluminum and is assembled in a grid shape with vertical bars (10) installed long in the vertical direction and horizontal bars (20) installed in the horizontal direction between the vertical bars (10). Since the installed vertical bars 10 cannot be manufactured as one from the lower floor to the upper floor, the vertical bars 10 located at the upper and lower parts are connected to each other at the height of the slab forming the floor surface of each floor of the building, and the present invention The connecting material 30 according to the above is inserted and installed inside the square shape of the vertical bar indoor frame 11 at the part where the vertical bars 10 are connected to each other, and the connecting material 30 is made of a material with an insulating function. Since the strength is weak if it is composed only of the manufactured injection-molded product 32, it is desirable to construct it by inserting a sleeve 31 made of a metal material inside the injection-molded product 32.

The vertical bar 10 includes an indoor frame 11 disposed on the indoor side and an outdoor frame 12 disposed on the outdoor side. The indoor frame 11 and the outdoor frame 12 are formed as one piece. It may be manufactured separately, or the indoor frame 11 and the outdoor frame 12 may be manufactured separately, and an insulating material (reference numeral not specified in FIG. 2) may be inserted between them to connect them as one piece. Since the structure of the bar is not a technical feature unique to the present invention, detailed description thereof will be omitted.

The sleeve (31) is made of metal, the upper and lower parts are open, the cross-section is made in a hollow square shape, and it is connected to the indoor frame (11) by a fastening means such as a screw. It is installed together. When assembled, such sleeve 31 is positioned over the indoor frame 11 of each vertical bar located at the upper and lower parts.

In this way, when the vertical bars 10 located above and below are connected only with the sleeves 31, the heat conducted through the vertical bars 10 made of metal passes through the sleeves 31 made of metal to the vertical bars assembled adjacent to each other. Since it conducts to (10), it is impossible to achieve interlayer insulation of the vertical bar (10), and there is a problem that there is a lot of heat loss through the vertical bar (10) itself, which is continuously connected in the vertical direction. Therefore, in the connecting member 30 of the present invention, an injection-molded product 32 with an insulating function is further inserted on the outside of the sleeve 31. The injection molded product 32 is inserted into the outer peripheral surface of the sleeve 31 and is installed by inserting it into the square shape of the vertical bar indoor frame 11 located at the upper and lower portions.

The injection molded product 32 is made of a material with an insulating function. For example, it is molded by injection or extrusion from synthetic resin such as PVC, and various materials such as glass fiber, non-combustible fabric, and glass wool can also be used. The injection molded product 32 is closed on one side of the upper and lower sides, has a hollow square cross-section, and wraps around the outer peripheral surface of the metallic sleeve 31 to prevent direct contact between the vertical bar 10 and the sleeve 31. By doing so, the vertical bars 10 located at the upper and lower parts are assembled and installed in a thermally disconnected state by the injection molding material 32, thereby blocking heat that is conducted in the vertical direction along the vertical bar 10 and transferred to other vertical bars. It will be done.

In addition, since one side of the upper or lower part of the injection molded product 32 made of a material with an insulating function is closed, heat moving between floors through the internal hollow part of the vertical bar 10 can be blocked, Interlayer insulation of the bar 10 can be implemented. It is preferable that the injection molded product 32 is formed as one piece by extending the part inserted inside the indoor frame 11 of the vertical bar to the part where the outdoor frame 12 is located (see FIGS. 3A, 3B, and 3C).

When assembled, this injection molded product 32 is positioned over the indoor frame 11 of each vertical bar located at the upper and lower parts. A slot-shaped concave groove 311 is formed on the outer peripheral surface of the sleeve 31, and protrusions 321a are formed on the inner peripheral surface of the injection-molded product 32 in shapes corresponding to each other, so that the sleeve 31 and the injection-molded product 32 are formed. It is desirable to make it easy to combine, and at this time, a protrusion corresponding to the protrusion 321a is formed on the inner peripheral surface of the indoor frame 11 of the vertical bar to insert the connecting material 30 into the indoor frame 11 of the vertical bar. It is desirable to make joint installation easy.

The injection-molded product 32 may be formed as a flat surface without forming the protruding protrusion 322 on the outer peripheral surface. In this case, the vertical bars 10 located up and down are installed at a certain distance from the outer peripheral surface of the middle portion of the injection-molded product 32. Then, the spaced portions are filled with a finishing material 35 such as silicone for finishing.

It is desirable to form a protruding protrusion 322 at the mid-height portion of the injection-molded product 32 in the vertical direction. The protruding protrusion 322 is a vertical protrusion protruding in the vertical direction along the square-shaped outer peripheral surface of the injection-molded product 32. (322a) is formed at equal intervals, and the vertical bars 10 located at the upper and lower parts are coupled to each other by the vertical protrusions 322a while being spaced apart from each other (see FIG. 2). The vertical protrusion 322a may be installed only on the outer peripheral surface of the hollow square-shaped injection molded product 32, only on the inner peripheral surface, or on both the inner and outer peripheral surfaces, which is a simple design change. The vertical protrusions 322a are formed at regular intervals and spaced apart from each other, and a space is formed between the vertical protrusions 322a formed adjacent to each other, which can contribute to improving insulation.

The vertical bar 10 is fixed to the slab that forms the floor of each floor in a building, and the slab sags slightly or the weight of glass, etc. causes displacement such as a slight sagging in the vertical bar 10. Even so, since the vertical protrusions 322a made of synthetic resin, etc. are spaced apart from each other between the vertical bars 10 installed at the top and bottom, a space is formed so that they are slightly distorted and absorb displacement such as sagging. This prevents damage to the vertical portion 10. However, if only the horizontal protrusion 322b is formed without installing the vertical protrusion 322a, there is no space at all between the horizontal protrusions 322b, so the horizontal protrusion 322b cannot be distorted or deformed, so the vertical bar 10 Since it cannot absorb displacement such as deflection, the vertical bar 10 is damaged.

In the vertical direction of the vertical protrusion 322a formed on the outer peripheral surface of the injection-molded product 32, a horizontal protrusion 322b is formed in the central portion in the horizontal direction in the space between the vertical protruding portion 322a and the vertical protruding portion 322a along the outer peripheral surface of the injection-molded product 32. ) may be further formed, and the horizontal protrusion 322b and the vertical protrusion 322a are preferably formed at the same height on the square-shaped outer peripheral surface of the injection molded product 32. The protruding protrusion 322 may be composed of only the vertical protrusion 322a, or it may be composed of both the vertical protrusion 322a and the horizontal protrusion 322b, including both the vertical protrusion 322a and the horizontal protrusion 322b. Even if it is formed, since there are vertical protrusions 322a formed at regular intervals and spaced apart at regular intervals, it is possible to absorb deformation occurring in the vertical bar 10, and a finishing material such as silicone 35 is applied on the outside of the protrusion 322. Fill and finish.

In order to improve the insulation of the connecting material 30, an insulating material 36 such as glass wool may be further inserted into the square shape of the sleeve 31 (see FIG. 4).

In addition, in order to facilitate the assembly of the connecting material 30, it is desirable to make the vertical length of the sleeve 31 shorter than the length of the injection molded product 32. In addition, in order to improve the inter-floor fire prevention function of the vertical bar 10 by blocking heat and flame moving between floors through the hollow portion formed inside the indoor frame 11 of the vertical bar in the event of a fire, a metal sleeve is installed in the connecting material 30. It is desirable to install a blocking cover (34) that closes the upper and lower open surfaces of (31) (see Figure 2). The blocking cover 34 is made of a plate-shaped metal plate, and can be closed by blocking both the open side of the sleeve 31, that is, the upper and lower sides, or it can be closed by blocking only one side of the upper or lower side. When blocking only one side, it is desirable to install it so that the lower part is blocked, taking into account the time of inserting the insulation material 36.

The blocking cover 34 may be installed by welding with the upper and/or lower ends of the sleeve 31, and protrusions may be formed on the upper and/or lower surfaces of the plate-shaped member to be installed at the upper and lower ends of the sleeve 31. It can also be joined by fitting.

The injection molded product 32 may be formed integrally as shown in FIG. 3A, but may also be manufactured by separating it vertically from top to bottom centered on the central portion as shown in FIG. 3B. In this case, the vertical protrusion 322a' is also formed in the vertical direction. It is separated up and down around the central part, and when installed in combination, the ends of the upper and lower injection molded product 32' and the vertical protrusion 322a' are installed in contact with each other. If the injection molded product 32' is manufactured by separating the upper and lower parts, it is not only easier to assemble the sleeve 31 and the vertical bar 10, but also when the injection molded product 32' separated into the upper and lower parts is assembled, the assembled injection molded product 32' Since both the top and bottom of the bar are closed with a material with an insulating function, there is an advantage that the interlayer insulating function of the vertical bar 10 is significantly improved.

A horizontal protrusion 322b' may be further formed at each end of the upper and lower injection molded product 32' and the vertical protrusion 322a', and the horizontal protrusion 322b' and the vertical protrusion 322a' may be further formed. is formed at the same height on the square-shaped outer peripheral surface of the injection molded product 32' (see FIG. 3b), and is installed so that the horizontal protrusions 322b' located above and below come into contact with each other. The injection molded product 32' is formed by separating the top and bottom, but the sleeve 31 inserted into the injection molded product 32' must be formed as one.

In Figure 3c, the fireproof foam material 37 may be further inserted and installed on the inner surface of the closed surface of the top or bottom of the injection molded product 32, or between the top or bottom of the injection molded product 32 and the top or bottom of the sleeve 31. , fireproof foam material 37 may be further installed in the empty internal space of the sleeve 31. The fireproof foam material 37 does not necessarily need to be formed in a specific shape such as a plate shape, but is a lump of any shape without a special shape. If it is inserted and installed in a certain amount or more, it will foam when heated and form the sleeve 31. By filling the empty space inside, the fire prevention function can be fully exercised.

Fire-resistant foam is a material that expands when a fire occurs and receives heat, thereby expanding the volume and closing the internal space of the injection molded product 32 and the sleeve 31. As it is foamed, the inside of the sleeve 31 and the injection molded product 32 is blocked. Because the space is blocked, flames or heat generated during a fire cannot move through the internal space of the vertical bar (10), thereby improving inter-floor insulation and fire prevention functions. Since the fireproof foam material itself is not a characteristic composition unique to the present invention and is a material widely used in various fields, detailed description will be omitted.

The above description is an illustrative description of the present invention, and the embodiments published in the specification are not intended to limit the technical idea of the present invention, but are for illustrative purposes, so those skilled in the art Various modifications and variations will be possible without departing from the technical idea of . Therefore, the scope of protection of the present invention should be interpreted based on the matters stated in the claims, and technical matters within the equivalent scope thereof should also be interpreted as being included in the scope of rights of the present invention.

10: Vertical bar 11: Indoor frame
12: Outdoor side frame
20: horizontal bar
30: Connecting material 31: Sleeve
32: Injection 321: Main body
322: Protruding jaw 322a: Vertical protrusion
322b: horizontal protrusion
34: blocking cover 35: finishing material
36: insulation material 37: fireproof foam material

Claims (11)

In a curtain wall in which vertical bars and horizontal bars are assembled in a grid shape, a vertical bar connecting material that connects and assembles vertical bars located at the upper and lower parts,
The vertical bar connector is,
The cross-section is a hollow square shape, and either the upper or lower side is closed, and it is made of a material with an insulating function, so that it spans all of the inner circumferential surfaces of the vertical bars located at the upper and lower sides, respectively. It is composed of an injection molding product that is installed while connecting vertical bars,
The injection molded product has vertical protrusions protruding in the vertical direction at the mid-height portion in the vertical direction at equal intervals along the outer peripheral surface of the injection molded product, and the vertical bars located at the upper and lower parts are spaced apart from each other by the vertical protrusions. A vertical bar connecting material for a curtain wall with inter-floor fire prevention and insulation functions, characterized in that it is assembled while being combined.
delete According to paragraph 1,
The injection molded products are separated into upper and lower parts in the vertical central portion, and each of the upper and lower injection molded products is closed on either the upper or lower side,
The ends of the upper and lower injection molded products are placed in contact with each other to be assembled and installed, and at the ends of each vertically separated injection molded product, there is a vertical part that protrudes in the vertical direction. Protrusions are formed at equal intervals along the outer peripheral surface of the injection molded product,
It is assembled and installed by placing the ends of the vertical protrusions formed on the upper and lower separate injection moldings in contact with each other, and the vertical bars located at the upper and lower parts are assembled while being spaced apart from each other by the vertical protrusions. A vertical bar connection material for a curtain wall with inter-floor fire prevention and insulation functions.
According to paragraph 1,
In the vertical central portion of the vertical protrusion formed on the outer peripheral surface of the injection-molded product, a horizontal protrusion is further formed in the horizontal direction along the outer peripheral surface of the injection-molded product between the vertical protrusions, and the horizontal protrusion and the vertical protrusion are at the same height on the outer peripheral surface of the injection-molded product. A vertical bar connection material for a curtain wall with inter-floor fire prevention and insulation functions, characterized in that it is formed of.
delete According to paragraph 3,
At the end of each vertical protrusion separated into the upper and lower parts, a horizontal protrusion is further formed that protrudes outward along the outer peripheral surface of the end of the upper and lower injection product, and the horizontal protrusion and the vertical protrusion are at the same height from the outer peripheral surface of the injection product. is formed,
A vertical bar connector for a curtain wall with inter-floor fire prevention and insulation functions, characterized in that the injection molded products separated into the upper and lower parts are assembled and installed by placing the horizontal protrusions in contact with each other.
According to any one of paragraphs 1, 3, 4, and 6,
A sleeve made of a metal material that is open at the top and bottom and has a hollow square cross-section is further inserted into the inner peripheral surface of the injection molded product,
The length of the sleeve is formed to be shorter than the length of the injection molded product, and the sleeve inserted into the inner peripheral surface of the injection molded product has an interlayer fire prevention and heat insulation function, characterized in that it is assembled by combining it so that it spans both the vertical bars located at the upper and lower parts. Vertical bar connector of curtain wall.
In clause 7,
A vertical bar connecting material for a curtain wall with inter-floor fire prevention and insulation functions, characterized in that a blocking cover is further installed to block and close the open upper or lower part of the sleeve.
According to clause 8,
A vertical bar connection material for a curtain wall with interlayer fire prevention and insulation functions, characterized in that an insulating material is further inserted inside the sleeve.
In clause 7,
A vertical bar connecting material for a curtain wall with interlayer fire prevention and insulation functions, characterized in that a fire-resistant foam material is further installed between the closed upper or lower surface of the injection molded product and the upper or lower end of the sleeve.
In clause 7,
A vertical bar connecting material for a curtain wall with interlayer fire prevention and insulation functions, characterized in that fire-resistant foam material is further installed inside the sleeve.

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