KR102683784B1 - Gasket with porous drainage using capillary phenomenon - Google Patents

Abstract

In the present invention, a plurality of capillary pipes are provided in front of the gasket body to communicate with the outside of the gasket body, which has a longitudinally guided drainway formed inside, and the guided drainway, so that even if the outer sealant loses its water leak suppression effect due to deterioration, the inner sealant This is about a gasket that has an induced drainage function using capillary action that can suppress water leakage by absorbing water infiltrated from the gasket and discharging it to the outside.
The present invention relates to a gasket body; an induced drainage channel formed longitudinally penetrating the interior of the gasket body; and a plurality of capillary paths formed to penetrate the gasket body in front of the induced drain so that the front end communicates with the outside of the gasket body and the rear end communicates with the induced drain. The gasket body is composed of a flat plate portion and a pair of closed protrusions protruding from both sides of one side of the flat plate portion to be spaced apart from each other, and the flat plate portion is bent in a U shape so that the upper surfaces of the pair of closed protrusions are in close contact with each other. By doing so, the induced drainage channel is formed by a space closed by the flat part and the pair of closed protrusions, and the capillary channel is formed by penetrating the closed protrusions.

Description

Gasket with induced drainage using capillary phenomenon {Gasket with porous drainage using capillary phenomenon}

In the present invention, a plurality of capillary pipes are provided in front of the gasket body to communicate with the outside of the gasket body, which has a longitudinally guided drainway formed inside, and the guided drainway, so that even if the outer sealant loses its water leak suppression effect due to deterioration, the inner sealant This is about a gasket that has an induced drainage function using capillary action that can suppress water leakage by absorbing water infiltrated from the gasket and discharging it to the outside.

A curtain wall is made of materials such as metal, glass, and stone and is attached with fasteners to the outside of a ramen frame composed of columns and beams in structures such as reinforced concrete, steel frame, and steel reinforced concrete. It is a non-bearing wall that does not bear the load of the building. Curtain walls block external rain and wind, block noise and heat, and improve the appearance of buildings through various shapes and materials.

Recently, the use of PC (precast concrete) curtain wall, which has excellent water resistance and fire resistance, excellent sound insulation performance, and is economical, has been increasing.

PC curtain wall is a curtain wall system that forms an exterior wall by assembling factory-made precast concrete panels on site.

A curtain wall is formed by successively attaching a plurality of unitized panels, and it is important to secure airtightness and water leak blocking performance at each panel joint.

Accordingly, in the existing PC curtain wall method, a backup material 300 was inserted on the outside between the PC members 100 and a sealant 400 was installed, while a gasket 200 was inserted on the inside. Therefore, a double seal method is widely used in which a pressure reduction zone is formed between the sealant 400 and the gasket 200 to block water leakage (FIG. 1).

However, due to the climatic conditions of Korea, which has four distinct seasons, the above method is difficult to maintain the decompression phenomenon due to deterioration of the sealant during long-term use.

In addition, the gasket installed on the inside must be able to respond to clearance due to manufacturing or construction errors in the PC member, but in some cases, it may be difficult to properly demonstrate the effect of blocking water leakage.

KR 10-1052478 B1

In order to solve the above problems, the present invention can be applied between adjacent PC members, etc., and creates a capillary phenomenon that can suppress water leakage from the inner gasket even if the outer sealant loses its water leak suppression effect due to deterioration, etc. The aim is to provide a gasket with an induced drainage function.

The present invention according to a preferred embodiment includes a gasket body; an induced drainage channel formed longitudinally penetrating the interior of the gasket body; and a plurality of capillary paths formed to penetrate the gasket body in front of the induction drain so that the front end communicates with the outside of the gasket main body and the rear end communicates with the induction drain. The gasket body is composed of a flat plate portion and a pair of closed protrusions protruding from both sides of one side of the flat plate portion to be spaced apart from each other, and the flat plate portion is bent in a U shape so that the upper surfaces of the pair of closed protrusions are in close contact with each other. By doing so, the induced drainage channel is formed by a space closed by the flat part and a pair of closed protrusions, and the capillary channel has an induced drainage function using a capillary phenomenon, characterized in that it is formed through the closed protrusion. Gaskets are provided.

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The present invention according to another preferred embodiment provides a gasket with an induced drainage function using capillary action, wherein an extended protrusion with notch grooves formed on both sides is integrally formed on the upper part of the closing protrusion.

The present invention according to another preferred embodiment provides a gasket having an induced drainage function using capillary action, characterized in that an intumescent waterproof material is provided inside the induced drainage channel.

According to the present invention, it is possible to provide a gasket in which an induced drain is formed in the longitudinal direction inside a bar-shaped gasket body, and a plurality of capillary passages are provided in front of the gasket body to communicate the induced drainage with the outside of the gasket body.

Accordingly, even if the sealant provided on the outside between the PC members deteriorates, the plurality of capillary channels formed in front of the gasket main body absorb water through the capillary phenomenon, so the absorbed water is guided to the induction drain channel and drained to the outside, preventing water leakage. It can be suppressed.

Figure 1 is a diagram showing a cross-section of a conventional PC curtain wall joint.
Figure 2 is a perspective view showing an embodiment of a gasket with an induced drainage function.
Figure 3 is a perspective view showing the installation state of the gasket shown in Figure 2.
FIG. 4 is a cross-sectional view showing the installation state of the gasket shown in FIG. 2.
Figure 5 is a perspective view showing the state before bending of the gasket with the induced drainage function of the present invention.
Figure 6 is a perspective view showing the state of the gasket with the induced drainage function of the present invention after bending.
Figure 7 is a perspective view showing the installation state of the gasket shown in Figure 5.
Figure 8 is a cross-sectional view showing various embodiments of a bent gasket.
Figure 9 is a perspective view showing a gasket with an extended protrusion formed thereon.
Figure 10 is a cross-sectional view showing an embodiment equipped with an intumescent waterproofing material.
Figure 11 is a cross-sectional view showing an embodiment in which wing pieces are formed to protrude.

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

FIG. 2 is a perspective view showing an embodiment of a gasket with an induced drainage function, FIG. 3 is a perspective view showing an installation state of the gasket shown in FIG. 2, and FIG. 4 shows an installation state of the gasket shown in FIG. 2. This is a cross-sectional view.

As shown in Figures 2 to 4, etc., the gasket having an induced drainage function using the capillary phenomenon of the present invention includes a gasket body 21; an induced drainage channel (22) formed longitudinally penetrating the inside of the gasket body (21); and a plurality of capillary channels 23 formed to penetrate the gasket body 21 in front of the induced drain 22 so that the front end communicates with the outside of the gasket body 21 and the rear end communicates with the induced drain 22. ; It is characterized by being composed of.

The present invention is to provide a gasket (2) with an induced drainage function using capillary action that can suppress water leakage from the inner gasket (2) even if the outer sealant deteriorates and loses the water leak suppression effect.

The present invention is intended to be used in the joints of PC members (1), such as the joint between PC panels in a PC curtain wall or the joint between PC panels and PC columns, and can also be used in panels of other materials depending on the case.

The gasket (2) of the present invention is made of an elastic material such as rubber and is inserted into the joint of the PC member (1), that is, the gap between the two PC members (1).

The gasket 2 is installed on the indoor side.

The gasket (2) consists of a gasket body (21), an induced drainage channel (22), and a capillary channel (23).

The gasket body 21 is formed in a long bar shape and is inserted into the gap between neighboring PC members 1.

The induced drainage channel 22 is formed inside the gasket body 21 to penetrate along the longitudinal direction of the gasket body 21.

The capillary path 23 penetrates the gasket body 21 in front of the induction drain 22, and the front end communicates with the outside of the gasket main body 21, and the rear end communicates with the induction drain 22.

A plurality of capillary passages 23 are formed in front of the gasket body 21.

The capillary passage 23 penetrates the gasket body 21 from the front of the gasket body 21 and the rear end communicates with the induced drainage passage 22.

When the sealant 4 provided in front of the backup material 3 between the PC members 1 deteriorates and water penetrates to the front of the gasket 2, a plurality of capillary channels 23 formed in front of the gasket main body 21 ), capillary action occurs. Due to this capillary phenomenon, the capillary path 23 absorbs the infiltrated water and moves it to the guided drain 22, and the water absorbed into the guided drain 22 flows downward along the guided drain 22 and is discharged to the outside. do.

Capillary phenomenon is a phenomenon in which when a capillary (thin tube) is placed in a liquid, the surface of the liquid within the capillary becomes higher or lower than the surface of the liquid outside. When a capillary is placed in water, the adhesive force between the water and the capillary is greater than the cohesive force between water molecules, so the water It continues to rise through the capillaries.

Accordingly, even if a leak occurs inside the sealant 4, water does not flow into the room, but is drained along the guide drain 22 and discharged to the outside.

Figures 5 and 6 are perspective views showing the gasket with the induced drainage function of the present invention before and after bending, respectively, and Figure 7 is a perspective view showing the installation state of the gasket shown in Figure 5. And Figure 8 is a cross-sectional view showing various embodiments of a bent gasket.

As shown in FIGS. 5 to 8, the gasket body 21 is composed of a flat plate portion 211 and a pair of closed protrusions 212 protruding and spaced apart from each other on both sides of one side of the flat plate portion 211. The flat part 211 is bent into a U shape so that the upper surfaces of the pair of closed protrusions 212 are in close contact with each other, thereby forming a space closed by the flat part 211 and the pair of closed protrusions 212. The induced drainage channel 22 is formed, and the capillary channel 23 may be formed penetrating the closed protrusion 212.

5 to 8 show a bent gasket constructed by bending the gasket body 21.

Due to manufacturing errors or construction errors of the PC member (1), the gap between the PC members (1) at the joint of the PC member (1) may not be constant.

In this case, the gasket (2) must be able to block water leakage and respond to the gap between the PC members (1).

For this purpose, the gasket body 21 may be composed of a flat plate portion 211 and a closed protrusion 212 protruding from both sides of one side of the flat plate portion 211. When installing the gasket 2, the flat plate portion 211 of the gasket body 21 can be bent into a U shape so that the closing protrusions 212 on both sides are brought into close contact with each other.

Since the gasket body 21 is made of an elastic material, when the flat plate portion 211 is bent into a U shape, a force is generated to spread the gasket body 21 to both sides due to the elasticity of the flat plate portion 211. Accordingly, the gasket body 21 can be brought into close contact with the ends of the PC members 1 on both sides regardless of the gap between the PC members 1.

The closing protrusions 212 are protruding and formed on both sides of one side of the flat portion 211 to be spaced apart from each other. Therefore, when the flat plate portion 211 is bent into a U shape, a space is formed between the closed protrusion 212 and the flat plate portion 211 that are in close contact with each other, and this space becomes the induced drainage channel 22.

The capillary path 23 may be formed by penetrating the closed protrusion 212 in a horizontal direction, and the capillary path 23 is formed at the front of the gasket main body 21 and the induced drainage path 22 when the flat plate portion 211 is bent. Connect.

As shown in FIG. 8, in the bent gasket, the induced drainage channel 22 may have a cross section on the side where the capillary channel 23 is provided, and may be formed in various shapes such as straight, V-shaped, or inverted V-shaped.

Figure 9 is a perspective view showing a gasket with an extended protrusion formed thereon.

As shown in FIG. 9, an extension protrusion 24 having notch grooves 25 on both sides may be formed to extend integrally from the upper part of the closing protrusion 212.

When the gasket (2) is formed in a bent shape consisting of a flat portion (211) and a closed protrusion (212), the gasket (2) must be bent in order to actively absorb water penetrating into the front of the gasket (2) through capillary action. It is preferable that the closing protrusions 212 on both sides come into contact with each other so that the remaining portion excluding the capillary path 23 in front of the gasket 2 is closed.

However, if the gap between the PC members 1 on both sides is too large and the height of the closing protrusion 212 is not high enough, the closing protrusions 212 on both sides may not come into close contact with each other no matter how much the flat plate 211 is bent.

In addition, when the gap between adjacent PC members 1 is too small and the closing protrusions 212 on both sides are excessively compressed to insert and install them between the PC members 1, the capillary path 23 is distorted and closed due to compression, so that the capillary tube 212 is compressed. The phenomenon may not occur.

Therefore, even when the gap between the two PC members (1) is varied, an extended protrusion is formed on the upper part of the closing protrusion (212) so that the left and right widths of the gasket (2) can be adjusted to the gap between the PC members (1) after bending the flat plate portion (211). (24) can be formed.

A plurality of rows of notch grooves 25 may be formed in the extended protrusion 24.

Accordingly, when the closing protrusion 212 is compressed, compression mainly occurs in the notch groove 25, thereby preventing the capillary passage 23 from being closed.

In some cases, the width of the bent gasket 2 may be appropriately maintained by cutting part or all of the extended protrusion 24 along one of the plurality of rows of notch grooves 25.

Figure 10 is a cross-sectional view showing an embodiment equipped with an intumescent waterproofing material.

As shown in FIG. 10, an inflatable waterproofing material 26 may be provided inside the induced drainage channel 22.

The expandable waterproofing material 26 absorbs water flowing into the induced drainage channel 22 and promotes external water absorption through the capillary channel 23. That is, the intumescent waterproofing material 26 enhances the induced drainage effect.

In addition, the intumescent waterproofing material 26 expands when it absorbs water. Therefore, when the water in front of the gasket 2 is absorbed into the inside of the guided drainage channel 22 due to capillary action, the water is absorbed into the intumescent waterproofing material 26, thereby increasing the volume of the intumescent waterproofing material 26.

Accordingly, the flat plate portion 211 bent into a U shape is pressed outward, so that the gasket 2 can be more firmly adhered to the PC member 1 on both sides. In other words, the inflatable waterproofing material 26 serves to increase the water leak blocking effect.

Even if the intumescent waterproofing material 26 expands, the entire cross-section of the guide drainage channel 22 should not be closed.

Therefore, the inner surface of the closing protrusion 212 can be formed to be inclined so that the front side of the induced drainage channel 22 has a V-shape or an inverted V-shape.

Figure 11 is a cross-sectional view showing an embodiment in which wing pieces are formed to protrude.

As shown in FIG. 11, a plurality of wing pieces 27 may be formed to protrude on both sides of the gasket body 21.

The wing pieces 27 are used to easily insert the gasket 2 into the space between the PC members 1 and prevent it from coming off after insertion.

To this end, the wing piece 27 may be formed such that its outer end is curved toward the indoor side.

1: No PC
2: Gasket
21: Gasket body
211: Reputation Department
212: closed protrusion
22: Guided drain
23: capillary path
24: extension protrusion
25: Notch groove
26: Intumescent waterproofing material
27: Wing section
3: Backup material
4: Sealant

Claims (4)

Gasket body (21);
an induced drainage channel (22) formed longitudinally penetrating the inside of the gasket body (21); and
A plurality of capillary passages (23) formed to penetrate the gasket body (21) in front of the induced drainage passage (22) so that the front end communicates with the outside of the gasket body (21) and the rear end communicates with the induced drainage passage (22); Consisting of,
The gasket body 21 is composed of a flat plate portion 211 and a pair of closed protrusions 212 protruding and spaced apart from each other on both sides of one side of the flat plate portion 211,
By bending the flat portion 211 into a U shape so that the upper surfaces of the pair of closed protrusions 212 are in close contact with each other, the flat portion 211 and the pair of closed protrusions 212 are inducted into a space closed by the flat portion 211. A gasket having an induced drainage function using capillary phenomenon, wherein a drainage channel (22) is formed, and the capillary channel (23) is formed by penetrating the closed protrusion (212).
delete In paragraph 1:
A gasket with an induced drainage function using capillary action, characterized in that an extended protrusion (24) with notch grooves (25) formed on both sides extends integrally from the upper part of the closing protrusion (212).
In paragraph 1:
A gasket having an induced drainage function using capillary action, characterized in that an expandable waterproofing material (26) is provided inside the induced drainage channel (22).

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