KR200483803Y1

KR200483803Y1 - Sleeve for air duct having flange

Info

Publication number: KR200483803Y1
Application number: KR2020150005359U
Authority: KR
Inventors: 박원중
Original assignee: (주)디.에스.인더스트리
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2017-06-28
Also published as: KR20170000662U

Abstract

The present invention relates to a sleeve for an air duct provided with a connecting flange, more specifically, to a structure in which a connection with a vertical exhaust pipe constituting an air duct can be smoothly carried out from a state in which it is embedded in a concrete layer of a building, The present invention relates to a sleeve for an air duct provided with a connecting flange for preventing a flame or a toxic gas from flowing into a room when a fire occurs,

Description

[0001] DESCRIPTION [0002] SLEEVE FOR AIR DUCT HAVING FLANGE [0003]

Generally, air ducts are installed in buildings such as apartment buildings to normally exhaust waste or odors generated in kitchens or bathrooms.

In such a conventional air duct, a sleeve is embedded in each layer when a building is constructed, and a vertical exhaust pipe is connected to upper and lower portions of the sleeve.

Korean Patent Publication No. 10-1466271 discloses a vertical exhaust pipe connecting structure of a dry air duct system.

However, the conventional vertical exhaust pipe connection structure such as the other has a problem in that a separate sleeve fixing band must be used while the connection between the sleeve and the vertical exhaust pipe can not be smoothly performed.

Further, since the sleeve and the buried hole of the concrete layer in which the sleeve is embedded can not be smoothly sealed, a flame or toxic gas may flow into the room when a fire occurs.

Korean Registered Patent No. 10-1466271 (Nov.

The object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a method of connecting a vertical exhaust pipe constituting an air duct from a state of being embedded in a concrete layer of a building, And a connecting flange for preventing a flame or a toxic gas from entering the room when the fire is generated by allowing airtight seal between the air duct and the buried hole.

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

In order to achieve the above-mentioned object, the present invention provides a sleeve for an air duct, which is embedded in a concrete layer of a building and is connected to a vertical exhaust pipe having a fastening flange at at least one end thereof, A casing embedded in the concrete layer; A pair of connecting portions coupled to outer sides of the upper and lower portions of the casing in a ring shape and including a connecting flange to which the connecting flange is connected; And a pair of pressing jaws extending outwardly from the upper and lower sides of the casing, wherein the connecting flange is fixed, wherein the concrete layer is formed with a buried hole on the outer side of the casing, Wherein the connection flange is in contact with the upper and lower surfaces of the concrete layer to seal between the casing and the buried hole.

The pair of connecting portions according to the present invention further includes a reinforcing ring extending from the inner circumferential surface of the connecting flange upward or downward and coupled to the outside of the casing.

The reinforcing ring according to the present invention is characterized in that the central portion between the upper and lower ends protrudes outward.

The connecting flange according to the present invention has first and second space portions formed on both sides thereof extending from the outer circumferential surface to the inner circumferential surface and communicating with the inner circumferential surface and the reinforcing ring is spaced from the first space portion, And the pair of connecting portions press the opposite side ends of the reinforcing ring in opposite directions from the state in which the pair of pressing jaws is formed on the upper and lower portions of the casing, respectively, And is coupled to the outside of the casing as the third space is widened.

The pair of pressing jaws according to the present invention are formed by bending outward from the upper and lower sides of the casing, and have an outer diameter smaller than the outer diameter of the connecting flange, and are press-bonded to the connecting flange.

According to the present invention, it is possible to smoothly connect to a vertical exhaust pipe constituting an air duct without using a separate sleeve fixing band from a state of being embedded in a concrete layer of a building.

In addition, since the airtightness can be sealed between the buried hole and the state embedded in the concrete layer, it is possible to prevent flames, toxic gas, and the like from entering the room when the fire occurs.

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

1 is a perspective view showing a sleeve for an air duct provided with a connecting flange according to the present invention.
2 is a longitudinal sectional view showing a sleeve for an air duct provided with a connecting flange according to the present invention.
3 is a state view showing a sleeve for an air duct provided with a connecting flange according to the present invention.
FIG. 4 is a perspective view illustrating a connection state between the connection portion and the vertical exhaust pipe in FIG. 3. FIG.
5 is a partial enlarged view showing a connection state between the connection portion and the vertical exhaust pipe in FIG.
6 and 7 are a perspective view and an exploded perspective view showing another example of a connecting portion in a sleeve for an air duct provided with a connecting flange according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 7, an air duct sleeve (hereinafter referred to as "hereinafter referred to as an air duct sleeve") 1 having a connecting flange according to the present invention is mounted on a concrete layer 110 of a building 100 A casing 10 which is filled with the concrete layer 110 and whose upper and lower ends are open and which is connected to the vertical exhaust pipe 210 to form an air duct 200; A pair of connecting portions 20 including a connecting flange 21 coupled to the upper and lower outer sides of the casing 10 and a pair of connecting portions 20 bent outwardly from the upper and lower portions of the casing 10, And a pair of pressing jaws 30 connected thereto.

As shown in FIG. 3, the building 100 can be understood as a multi-layered apartment or the like, and the concrete layer 110 can be understood as each layer of the building 100.

The air duct 200 extends from the lowermost layer to the uppermost layer of the building 100 and the vertical exhaust pipe 210 is formed on the upper portion and the lower portion of the air duct sleeve 1 provided in each concrete layer 110 At least in one place.

The vertical exhaust pipe 210 has upper and lower ends, and at least one end of the upper and lower ends of the vertical exhaust pipe 210 is formed with a fastening flange 211 coupled to the connection flange 21.

The fastening flange 211 corresponds to the fastening flange 21 and is fastened to the fastening flange 21 by a fastening 220 such as a screw or bolt as shown in Figs.

The fastening flange 211 may be bent outward from the end of the vertical exhaust pipe 210 or may be formed in a ring shape and connected to the outside of the vertical exhaust pipe 210.

4, both ends of the fastening flange 211 surround the outer circumferential surface of the vertical exhaust pipe 210, and both ends of the fastening flange 211 are connected to each other by bolts and nuts, Possibly combined.

The casing 10 has a cylindrical shape in which upper and lower portions are opened, and one or more reinforcing ribs 11 protruding outward along the periphery may be formed.

The coupling flange 21 is positioned on the upper and lower surfaces of the concrete layer 110 while the casing 10 is embedded in the concrete layer 110, So that the connection between the vertical exhaust pipes 210 can be smoothly performed without a fixing band.

Preferably, the connection flange 21 has an inner diameter equal to or larger than the pressing jaw 30 and an outer diameter larger than the outer diameter of the pressing jaw 30.

It is needless to say that the pressing jaw 30 is bent outward from both ends of the casing 10 and the pair of connecting portions 20 are bent from the state where the pair of connecting portions 20 are coupled to the outside of the casing 10. [

The pair of connecting portions 20 may be connected to the pair of pressing jaws 30 by welding, but most preferably, they are fixedly connected by press bonding.

That is, the connection flange 21 and the pressing jaw 30 may be mutually connected by pressing a predetermined position simultaneously in the vertical direction from the state where the connection flange 21 and the pressing jaw 30 are overlapped with each other using another external pressure bonding device.

Since this pressure bonding is already known and used, detailed description thereof will be omitted.

4, the connecting flange 21 is fixedly connected to the pair of pressing jaws 30 so that the connecting flange 21 is in contact with the upper and lower surfaces of the concrete layer 110 The space between the casing 10 and the buried hole 120 can be sealed with a gap formed between the casing 10 and the casing 10.

That is, the concrete layer 110 is formed with a buried hole 120 on the outer side of the casing 10, and the pair of connection portions 20 are formed on the upper surface of the concrete layer 110 The upper and lower portions of the buried hole 120 can be sealed while being in contact with the lower surface.

6 to 7, the pair of connecting portions 20 extend upward or downward from the inner circumferential surface of the connecting flange 21, respectively, and the reinforcing ring 21, which surrounds the outside of the casing 10, (22).

The reinforcing ring 22 is embedded in the concrete layer 110 together with the casing 10, and a central portion between the upper and lower ends is protruded outward.

This reinforces the rigidity and effectively copes with the reinforcing ribs 11 formed in the casing 10, while the ends of the reinforcing ribs 11 contacting the casing 10 are narrowed, So that bonding can be smoothly performed.

Here, the end of the reinforcing ring 22 contacting the casing 10 can be understood as a direction opposite to the direction in which the connecting flange 21 is positioned around the center between the both ends.

The connection flange 21 is formed on both sides with first and second space portions 23 and 24 extending from the outer circumferential surface to the inner circumferential surface and communicating with the inside.

The reinforcing ring 22 is formed with a third space 25 which is open at one side and communicates with the first space 23. In other words, the reinforcing ring 22 forms the third space portion 25 with both side ends thereof being spaced apart therefrom.

As the opposite ends of the reinforcing ring 22 are pressed in opposing opposing directions, the reinforcing ring 22 flares outward around the central portion between the both side ends thereof. As the opposite ends are pressed in mutually opposing directions from the opened state, .

At this time, the connection flange 21 is equally divided by the first and second space portions 23 and 24, and is formed so as to be opened or closed together as the opposite ends of the reinforcing ring 22 are pressed.

This is to enable the pair of connecting portions 20 to be stably engaged from a state where the pair of pressing jaws 30 are formed at both ends of the casing 10.

It is needless to say that the pair of connection portions 20 are not separated from the casing 10 or the pressing jaw 30 by welding or press bonding after the coupling portions 20 are coupled to the upper and lower portions of the casing 10. [

Therefore, the sleeve 1 for the air duct can be smoothly connected to the vertical exhaust pipe from the state in which it is embedded in the concrete layer of the building, while the gap between the air hole and the landfill 120 can be hermetically sealed So that it is possible to prevent flames and toxic gases from entering the room when a fire occurs.

The present invention is not limited to the above-described embodiment, but may be applied to other types of apparatuses such as those disclosed in the following claims for utility model registration claims Without departing from the spirit and scope of the invention, those skilled in the art will recognize that there are technological spirits to the extent that various modifications can be made to those skilled in the art.

1: sleeve for air duct 10: casing
11: reinforcing rib 20:
21: connecting flange 22: reinforcing ring
23: first space part 24: second space part
25: third space part 30: pressure chin
100: Building 110: Concrete floor
120: buried hole 200: air duct
210: vertical exhaust pipe 211: fastening flange
220: fastener

Claims

A sleeve which is embedded in a concrete layer of a building and is connected to a vertical exhaust pipe having a fastening flange at at least one end of both ends thereof to form an air duct,
A casing having an upper portion and a lower portion opened and embedded in the concrete layer;
And a reinforcing ring coupled to an outer side of the casing and extending upward or downward from an inner peripheral surface of the connection flange, A pair of connecting portions; And
And a pair of pressing jaws extending outwardly from the upper and lower sides of the casing, the pair of pressing jaws to which the connecting flange is fixed,
Wherein the concrete layer comprises:
A buried hole is formed outside the casing,
Wherein the pair of connection portions includes:
Wherein the connection flange contacts the upper and lower surfaces of the concrete layer to seal the casing and the buried hole,
The coupling flange
First and second space portions extending from the outer circumferential surface to the inner circumferential surface and communicating with the inner circumferential surface are formed on both sides,
The reinforcing ring
The center portion between the upper and lower ends is projected outward to reinforce the rigidity and the end portion contacting with the casing is narrowed so that the joining by the welding or pressing with the casing is smoothly performed, A third space portion communicating with the first space portion is formed,
Wherein the pair of connection portions includes:
Wherein each of the first flange and the second flange is coupled to the outside of the casing by pressing opposite ends of the reinforcing ring in opposing directions and widening the third space.

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