KR102106164B1 - Adapter for Pipe Connecting in Gastight Condition - Google Patents

Abstract

The disclosed adapter for connecting pipes maintaining airtightness comprises: a tube-shaped airtight member which includes a flange unit maintaining airtightness formed by extending from one end on one side in a longitudinal direction towards the outside; a tube-shaped adapter member which includes an adapter flange unit formed by extending from one end on one side in a longitudinal direction towards the outside; a tube-shaped nut member; and a ring-shaped fastening-airtight member. The airtight member is coupled by being arranged coaxially with the inside of the adapter member, and an inner circumferential surface on one end on one side of the nut member is coupled to an outer circumferential surface on one end on the other side of the adapter member by using screws. The fastening-airtight member is arranged at a position which is the inside of the nut member and is adjacent to one end on the other side of the adapter member such that the airtight member is inserted into the pipe and the pipe is inserted into the adapter member, the nut member, and the fastening-airtight member. As the screw coupling of the adapter member and the nut member is fastened, the fastening-airtight member is pressurized in a fastening direction which is the direction in which the nut member is coupled to the adapter member. The fastening-airtight member pressurizes an outer circumferential surface of the pipe towards the inside, and simultaneously comes in close contact with one end unit on one side of the adapter member and an inner circumferential surface of the nut member, thereby preventing leakage of a fluid flowing inside the pipe.

Description

Adapter for Pipe Connecting in Gastight Condition

The present invention (Disclosure) relates to an adapter for connecting the airtight pipe, and specifically, to an adapter for connecting the airtight pipe, which is coupled to one end of the pipe to connect the separated pipe in an airtight state.

Here, a background art is provided for the present invention, and this does not necessarily mean a known technology.

In general, various types of reaction gases are used to form a thin film on a wafer in a semiconductor manufacturing process.

These reaction gases contain oxidizing, flammable and toxic components.

Therefore, when the used waste gas is released into the air as it is, it is harmful to the human body and causes environmental pollution.

Accordingly, it is discharged to the atmosphere through a purification process that lowers the harmful component content of the waste gas to below the allowable concentration, and for this purpose, a gas scrubber is installed in the exhaust line of the semiconductor manufacturing equipment that exhausts the waste gas to remove toxic components of the waste gas. do.

In this gas scrubber, the gas inlet pipe is connected to the exhaust line to receive the waste gas, and then the waste gas is cleaned by various methods.

The exhaust line is configured in such a way that a plurality of pipes for a pipe having a specific length are successively installed. As a method for connecting pipes for piping, joints using flanges are usually used.

The flange joint method has been previously filed in Korean Patent Application Publication No. 10-2012-0133501.

However, since the pipes for piping are formed and connected in a specific length, there is a limit in adjusting the length of the exhaust line, and there is a limit in coping with the case where the exhaust line is bent.

In this case, after cutting one side of the pipe for a specific length of pipe, it is necessary to fix the adapter for the flange joint to the cut end.

At this time, in order to fix the adapter, development of an airtight structure capable of preventing leakage of waste gas at one end of the pipe for piping is required.

1. Korean Registered Patent Publication No. 10-0946728

Disclosure of the Invention The present invention (Disclosure) relates to an adapter for maintaining the airtightness of a pipe, and specifically, an object of the present invention is to provide an adapter for the airtightness of a pipe that is coupled to one end of a pipe and can connect a separated pipe in an airtight state .

Here, an overall summary of the present invention is provided, which should not be understood as limiting the appearance of the present invention (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

In order to solve the above problems, the adapter for connecting the airtight pipe according to any one of several aspects describing the present invention is in the form of a tube, and the airtightness is formed to extend outward from one end in the longitudinal direction. Airtight member including a flange portion; An adapter member having a tube shape and including an adapter flange portion extending outward from one end in the longitudinal direction; Tubular nut member; And a ring-shaped tightening-tight member, wherein the hermetic member is disposed coaxially inside the adapter member to be coupled. The inner circumferential surface of one end of the nut member and the outer circumferential surface of the other end of the adapter member are screwed to each other, and the tightening-tight member is inside the nut member and is disposed at a position adjacent to the other end of the adapter member, to the inside of the pipe. The airtight member is inserted, the pipe is inserted into the adapter member, the nut member and the tightening-tight member, and as the screwing of the adapter member and the nut member is tightened, the adapter member and the As the screwing of the nut member is tightened, by pressing the tightening-tight member in the tightening direction which is the direction in which the nut member engages with the adapter member, the tightening-tight member presses the outer circumferential surface of the pipe inward. At the same time, by adhering to one end of the adapter member and the inner peripheral surface of the nut member, the inside of the pipe It is possible to prevent leakage of the fluid flowing to the side.

In a pipe airtight connection adapter according to another aspect of the various aspects describing the present invention, the cross-sectional shape of the other side of the airtight flange portion and one side of the adapter flange portion is a concavo-convex shape that fits with each other. , Fit and join together.

In the adapter for connecting the airtight pipe according to another aspect of the present invention, the airtight member further includes an outer periphery projecting from the outer peripheral surface adjacent to the airtight flange portion, and the adapter member, Further comprising an inner circumferential protrusion that protrudes inwardly from an inner circumferential surface adjacent to the adapter flange portion, the outer circumferential protrusion and the inner circumferential protrusion are in a concavo-convex shape that fits with each other, and are joined to each other by being fitted to each other, so that the hermetic member and the adapter member are They are not separated from each other.

In the adapter for the pipe hermetic connection according to another aspect of the present invention, the hermetic member is directly injection molded to the adapter flange portion and the inner circumferential protrusion.

In the adapter for airtight pipe connection according to another aspect of the various aspects of the present invention, the nut member further comprises a nut groove formed in a groove shape along the inner circumferential surface, and the tightening-tight member is , It is arranged in the nut groove.

In the adapter for maintaining the tightness of the pipe according to another aspect of the present invention, a part of the inner surface of the nut groove further includes a deformation receiving part spaced apart from the outer circumferential surface of the tightening-tight member.

In a pipe airtight connection adapter according to another aspect of various aspects of describing the present invention, the adapter member further includes a stepped edge formed at an edge where the other end face meets the inner surface and the outer surface.

In the adapter for connecting the airtight pipe according to another aspect of the present invention, the O-ring fastened to the outer peripheral surface of the airtight member further comprises.

In the adapter for connecting the airtight pipe according to another aspect of the present invention, the airtight member further includes a groove-shaped O-ring fixing groove formed on an outer circumferential surface, and the O-ring is disposed in the O-ring fixing groove. .

In an adapter for airtight connection of a pipe according to another aspect of the various aspects of describing the present invention, further comprising a cushion pad disposed on the other side of the outer circumferential protrusion, wherein an end face of the pipe is in contact with the outer circumferential protrusion. Prevents friction and damage.

In a pipe airtight connection adapter according to another aspect of the various aspects describing the present invention, the tightening-tight member has both end surfaces in the direction of the central axis perpendicular to the central axis. .

In the adapter for maintaining the tightness of a pipe according to another aspect of the present invention, the tightening-tight member has a pentagonal cross-sectional shape in a central axis direction, one side is disposed on the inside, and two on the outside. The side and one vertex are placed.

According to the present invention, according to the tightening of the nut member, the tightening-tight member is pressed to close the pipe with the hermetic member, thereby preventing leakage.

According to the present invention, according to the tightening of the nut member, the tightening-tight member is pressed to close the adapter member, thereby preventing leakage.

According to the present invention, according to the tightening of the nut member, the tightening-tight member is pressed, thereby preventing the flow of the pipe.

1 is a perspective view of an embodiment of an adapter for pipe tightness connection according to the present invention.
Figure 2 is a cross-sectional view of the adapter for connecting the airtight pipe of Figure 1;
3 is an enlarged view of area A in the state in which the pipe is inserted in FIG. 2.
4 is a view for explaining the tightening-tight member of FIGS. 1 to 3;
Figure 5 is an exploded view of another embodiment of the adapter for connecting the airtight pipe according to the present invention.
6 is a plan view of another embodiment of an adapter for pipe tightness connection according to the present invention.
7 is a cross-sectional view taken along line C in FIG. 6;
8 is an enlarged view of region B in FIG. 7.

Hereinafter, an embodiment in which the adapter for connecting the airtight pipe according to the present invention is implemented will be described in detail with reference to the drawings.

However, the intrinsic technical idea of the present invention cannot be said to be limited by the embodiments described below, and it will be described below by a person skilled in the art based on the intrinsic technical idea of the present invention. It is revealed that the embodiments described in the following are intended to cover a range that can be easily proposed by means of substitution or modification.

In addition, the terms used hereinafter are selected for convenience of explanation, and therefore, in grasping the intrinsic technical idea of the present invention, it is not limited to the dictionary meaning and is appropriately interpreted as a meaning consistent with the technical idea of the present invention. It should be.

1 is a perspective view of an embodiment of a pipe hermetic connection adapter according to the present invention. FIG. 2 is a cross-sectional view of the adapter for connecting the airtight pipe of FIG. 1, and FIG. 3 is an enlarged view of area A in the state in which the pipe is inserted in FIG. 2. 4 is a view for explaining the tightening-tight member of FIGS. 1 to 3.

1 to 4, the pipe airtight connection adapter according to the present embodiment includes an airtight member 100, an adapter member 200, a nut member 300, and a tightening-tight member 400. .

The hermetic member 100 is in the form of a tube, and includes an airtight flange portion 110 extending outwardly from one end in the longitudinal direction.

The airtight member 100 is preferably HPPE (High Performance Poly Ethylene), PFA (Perfluoroalkoxy), PVDF (Polyvinylidene fluoride) and ETFE (Ethylene tetrafluoroethylene), PP (Polypropylene) and ECTFE (ethylene chlorotrifluoroethylene) PTFE (Polytetrafluoroethylene) ) And ECTFE (ethylene chlorotrifluoroethylene) and PE (polyethylene).

The adapter member 200 has a tube shape, and includes an adapter flange portion 210 extending outward from one end in the longitudinal direction.

The nut member 300 has a tube shape.

In addition, the tightening-tight member 400 is a ring shape, preferably made of a fluorine resin containing teflon (tefon).

Referring to FIG. 2, the hermetic member 100 is disposed coaxially inside the adapter member 200 to be coupled. In addition, the inner peripheral surface of one end of the nut member 300 and the outer peripheral surface of the other end of the adapter member 200 are screwed to each other. In addition, the tightening-tight member 400 is inside the nut member 300 and is disposed at a position adjacent to the other end of the adapter member 200.

The pipe 1 is inserted into the adapter member 200, the nut member 300, and the tightening-tight member 400, and the airtight member 100 is inserted into the pipe 1.

As the screwing of the adapter member 200 and the nut member 300 is tightened, the nut member 300 presses the tightening-tight member 400 in its tightening direction 301.

The pipe airtight adapter according to the present invention is arranged such that one pipe of each of the different pipes 1 is coupled, and one side surface of each airtight flange portion 110 is in contact with each other.

At this time, by using fastening means for pressing the other side of the adapter flange portion 210 so that one side of the hermetic flange portions 110 in contact with each other are in close contact with each other, the different pipes 1 are connected to each other while maintaining airtightness Can be.

At this time, the nut member 300 presses the tightening-tight member 400 so that the tightening-tight member 400 presses the outer circumferential surface of the pipe 1 inward and at the same time one end and nut member of the adapter member 200 In close contact with the inner circumferential surface of the 300, it prevents the leakage of the fluid flowing inside the pipe (1).

This will be described in detail with reference to FIGS. 2 to 3 as follows.

When the nut member 300 and the adapter member 200 are tightened together, the nut member 300 is pressed in the tightening direction 301.

At this time, the other pressing surface 403a of the tightening-tight member 400 is an end surface in the axial direction of the tightening-tight member 400, and is pressed in the tightening direction 301 by the nut member 300.

In the pressurized tightening-tight member 400, one pressing surface 403b presses the other end surface of the adapter member 200, and the tightening-tight member inner circumferential surface 401 presses the outer circumferential surface of the pipe 1.

The inner peripheral surface 401 of the tightening-tight member presses the outer peripheral surface of the pipe 1, thereby bringing the outer surface of the hermetic member 100 into close contact with the inner surface of the pipe 1. In addition, the longitudinal flow of the pipe 1 is prevented, thereby preventing the longitudinal flow of the pipe 1.

In addition, one side of the tightening-tight member 400, the pressing surface 403b is in close contact with the other end surface of the adapter member 200, thereby sealing the outer surface of the pipe 1 and the inner surface of the adapter member 200.

1 to 4, in the pipe airtight connection adapter according to the present embodiment, the cross-sectional shapes of the other side of the airtight flange portion 110 and one side of the adapter flange portion 210 are uneven and fit. In shape, they fit together and join.

That is, the sealing flange uneven portion 111 is formed on the other side of the airtight flange portion 110, and the adapter flange uneven portion 211 is formed on one side of the adapter flange portion 210.

The sealing flange concavo-convex portion 111 and the adapter flange concavo-convex portion 211 are formed in a shape that fits to each other and are fitted to each other, thereby improving the tightening strength of the hermetic member 100 and the adapter member 200.

In addition, referring to FIGS. 1 to 4, in the pipe hermetic connection adapter according to the present embodiment, the hermetic member 100 is an outer circumferential protrusion 120 that protrudes outward from an outer circumferential surface adjacent to the hermetic flange portion 110. It further includes. In this case, the adapter member 200 further includes an inner circumferential protrusion 220 protruding inward from an inner circumferential surface adjacent to the adapter flange part 210.

The outer circumferential protrusion 120 and the inner circumferential protrusion 220 are concave-convex shapes that are fitted to each other, and are fitted to each other to be joined, so that the hermetic member 100 and the adapter member 200 are not separated from each other.

1 to 4, the nut member 300 in the pipe hermetic connection adapter according to the present embodiment further includes a nut groove 310 formed in a groove shape along an inner circumferential surface, and the tightening-tight member 400 is disposed in the nut groove 310.

The nut groove 310 improves the sealing force by fixing the position of the tightening-tight member 400, and prevents the longitudinal flow of the pipe 1.

In addition, referring to FIGS. 1 to 4, in the pipe hermetic connection adapter according to the present embodiment, a part of the inner surface of the nut groove 310, the deformation-receiving portion spaced apart from the outer peripheral surface of the tightening-tight member 400 ( 311).
The cross-sectional shape of the nut groove 310 along the axial direction of the nut member 300 is, when the adapter member 200 and the nut member 300 are screwed and tightened, the tightening-tight member 400 in the other direction It has a customized shape.
At this time, the deformation receiving portion 311 is formed on one side of the nut groove 310 in the opposite direction of the other direction based on the axial direction of the nut member 300, one side to be parallel to the axial direction of the nut member 300 It is formed extending in the direction.
Accordingly, the deformation receiving portion 311 is formed to be spaced apart from the inclined side disposed in one direction among the two inclined sides of the tightening-tight member 400.
Accordingly, the deformation receiving unit 311 accommodates the deformation of the tightening-tight member 400 formed as the tightening-tight member 400 is pressed to seal the gap between the adapter member 200 and the nut member 300. .

As described above, the tightening-tight member 400 is pressed on the other pressing surface 403a according to the tightening of the nut member 300, according to the pressure applied to the other pressing surface 403a, the tightening-tight member 400 is deformed, and the deformation receiving portion 311 accommodates the deformation of the tightening-tight member 400.

The deformation receiving portion 311 minimizes the gap between the nut screw portion and the adapter screw portion 230.

In addition, referring to FIGS. 1 to 4, the adapter member 200 in the pipe hermetic connection adapter according to the present embodiment further includes a stepped 202 formed at an edge where the other end surface meets the inner surface and the outer surface. .

The stepped 202 seals the separation occurring between the inner circumferential surface of the adapter member 200 and the outer circumferential surface of the pipe 1.

In addition, referring to FIGS. 1 to 4, the pipe airtight connection adapter according to the present embodiment further includes an O-ring 500 fastened to the outer circumferential surface of the airtight member 100.

In addition, referring to FIGS. 1 to 4, in the pipe airtight connection adapter according to the present embodiment, the airtight member 100 further includes a groove-shaped O-ring fixing groove 240 formed on an outer circumferential surface, and the O-ring 500 ) Is arranged in the O-ring fixing groove 240.

In addition, referring to FIGS. 1 to 4, the pipe airtight connection adapter according to the present embodiment further includes a cushion pad 600 disposed on the other side of the outer circumferential protrusion 120. Cushion Mad_ prevents the end face of the pipe 1 from being damaged by rubbing with the outer circumferential protrusion 120.

Also, referring to FIGS. 1 to 4, in the pipe hermetic connection adapter according to the present embodiment, the tightening-tight member 400 has both end surfaces in the central axis direction at right angles to the central axis.

In this case, the tightening-tight member 400 has a pentagonal cross-section in the center axis direction, one side 401 is disposed inside, and two sides 402a and one vertex 402b are disposed outside. do.

The tightening-tight member 400 has a cross-sectional shape in the central axis direction, and is preferably symmetrical to each other around a line passing through the vertex 402b and perpendicular to the central axis. The above-described symmetrical tightening-tight member 400 is an isotropic structure and does not cause defects along the assembly direction.

Fig. 5 is an exploded view of another embodiment of the adapter for pipe tightness connection according to the present invention.

Referring to FIG. 5, the nut member 300, the O-ring 600, the tightening-tight member 400, and the cushion pad 600 may be separated from the airtight member 100 and the adapter member. At this time, the hermetic member 100 and the adapter member may be integrally formed.

That is, in the pipe airtight connection adapter according to the present embodiment, the airtight member 100 may be directly injection molded into the adapter flange portion 210 and the inner circumferential protrusion 220.

As can be seen in Figure 2, the hermetic member 100 and the adapter member 200 are hermetically sealed flange portion 110, the adapter flange portion 210, and the outer circumferential protrusion 120 and the inner circumferential protrusion 220 fit together To combine.

At this time, by air injection molding the airtight member 100 directly into the adapter member 200, the airtight flange portion 110 and the outer circumferential protrusion 120 so as to fit into the adapter flange portion 210 and the inner circumferential protrusion 220 so as not to be separated from each other. ) Can be molded.

6 is a plan view of yet another embodiment of an adapter for pipe hermetic connection according to the present invention. 7 is a cross-sectional view taken along line C in FIG. 6, and FIG. 8 is an enlarged view of region B in FIG. 7.

6 to 8, in the pipe airtight connection adapter according to the present embodiment, the inner circumferential protrusion 220 includes a torsion hole 230, and the airtight member 100 further includes a hole connection part 130 Can have

The torsion hole 230 is formed through the upper and lower surfaces of the inner circumferential protrusion 220.

The hole connecting portion 130 connects the airtight flange portion 110 and the outer circumferential protrusion 120 through the torsion hole 230.

6 to 8, the hole connecting portion 130 fills the torsion hole 230 to connect the hermetic flange portion 110 and the outer circumferential protrusion 120.

Accordingly, the hermetic member 100 and the adapter member 200 are not separated, and thus may have a high torsional load.

Claims (14)

An airtight member having a tube shape and including an airtight flange portion extending outwardly from one end in the longitudinal direction;
An adapter member having a tube shape and including an adapter flange portion extending outward from one end in the longitudinal direction;
Tubular nut member; And
Including the ring-shaped tightening-tight member,
The hermetic member is disposed coaxially inside the adapter member to be coupled. The inner circumferential surface of one end of the nut member and the outer circumferential surface of the other end of the adapter member are screwed to each other, and the tightening-tight member is inside the nut member and is disposed at a position adjacent to the other end of the adapter member,
The hermetic member is inserted into the pipe, and the pipe is inserted into the adapter member, the nut member, and the tightening-tight member,
The nut member further includes a nut groove formed in a groove shape formed along an inner circumferential surface, and the tightening-tight member is disposed in the nut groove,
A part of the inner surface of the nut groove further includes a deformation receiving part spaced apart from the outer peripheral surface of the tightening-tight member,
In the fastening-tight member, both end surfaces of the ring-shaped fastening-tight member in the central axis direction form a right angle with the central axis, the cross-sectional shape in the central axis direction is a pentagonal shape, and one side is disposed inside. And two inclined sides and one vertex on the outside,
The cross-sectional shape of the nut groove along the axial direction of the nut member,
When the adapter member and the nut member are screwed and tightened, the tightening-tight member has a shape that fits in the other direction,
The deformation receiving portion is formed in one direction of the nut groove that is opposite to the other direction based on the axial direction of the nut member, and is formed to extend in one direction so as to be parallel to the axial direction of the nut member, so that the tightening -Of the two inclined sides of the hermetic member is formed to be spaced apart from the inclined side disposed in one direction,
As the screwing of the adapter member and the nut member is tightened, the nut member is pressed into the tightening-tight member in a tightening direction, which is a direction in which the adapter member is engaged,
The tightening-tight member, while pressing the outer circumferential surface of the pipe inward, in close contact with one end of the adapter member and the inner circumferential surface of the nut member,
The deformation receiving portion accommodates the deformation of the tightening-tight member formed as the tightening-tight member is pressed, thereby sealing the adapter member and the nut member,
Adapter for airtight pipe connection that can prevent leakage of fluid flowing inside the pipe. The method according to claim 1,
The cross-sectional shape of the other side of the hermetic flange portion and one side of the adapter flange portion,
Adapter for airtight connection of pipes, characterized in that they are joined to each other in a concave-convex shape that fits with each other. The method according to claim 2,
The hermetic member,
Further comprising an outer circumferential projection formed to protrude outward from the outer circumferential surface adjacent to the hermetic flange portion,
The adapter member,
Further comprising an inner circumferential protrusion protruding inward from the inner circumferential surface adjacent to the adapter flange portion,
The outer circumferential protrusion and the inner circumferential protrusion are joined to each other in a concavo-convex shape that fits with each other,
The airtight member and the adapter member for the pipe airtight connection adapter, characterized in that not separated from each other. delete delete The method according to claim 1,
Part of the inner surface of the nut groove,
Adapter for maintaining the tightness of the pipe, characterized in that it further comprises a deformation receiving portion spaced apart from the outer peripheral surface of the tightening-tight member. The method according to claim 1,
The adapter member,
Adapter for maintaining the airtightness of the pipe, characterized in that it further comprises a stepped edge formed at the corner where the other end surface meets the inner surface and the outer surface. The method according to claim 1,
Adapter for maintaining the tightness of the pipe, characterized in that it further comprises an O-ring fastened to the outer circumferential surface of the hermetic member. The method according to claim 8,
The hermetic member,
Further comprising a groove-shaped O-ring fixing groove formed on the outer peripheral surface,
Adapter for airtight pipe connection, characterized in that the O-ring is disposed in the O-ring fixing groove. The method according to claim 3,
Further comprising a cushion pad disposed on the other side of the outer periphery,
Adapter for maintaining the tightness of the pipe, characterized in that the end face of the pipe is prevented from being damaged by rubbing with the outer circumferential protrusion. delete delete The method according to claim 1,
The hermetic member,
High Performance Poly Ethylene (HPPE), Perfluoroalkoxy (PFA), Polyvinylidene fluoride (PVDF) and Ethylene tetrafluoroethylene (ETFE), PP (Polypropylene) and ECTFE (ethylene chlorotrifluoroethylene) PTFE (Polytetrafluoroethylene) and ECTFE (ethylene chlorotrifluoroethylene) and PE (PE) polyethylene) is an adapter for airtight pipe connection, characterized in that it is formed of a material selected from the group consisting of. The method according to claim 3,
The inner circumferential protrusion,
It includes a torsion hole penetrating the upper and lower surfaces,
The hermetic member,
Adapter for airtight pipe connection, characterized in that it has a hole connection for connecting the airtight flange portion and the outer projection through the torsion hole.

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