KR101353044B1 - Metal ring for pipe connections - Google Patents

Abstract

The present invention is a technique related to a metal ring used for connecting gas pipes, and relates to a metal ring and clamping device for pipe connections, which is capable of allowing the flanges of pipes to be fitted and fastened inside a flange portion opposite to each other such that the flanges of the pipes face each other, thereby facilitating the installation of the pipes, allowing a protruding portion opposite to each other to be pressed against and in close contact with the ends of the flanges of the pipes to enhance airtightness, thereby preventing a gas leak, and maintaining airtightness even in the event of pipe vibration and flow. A metal ring for pipe connections according to an embodiment of the present invention comprises: a body having a ring shape and formed to pass therethrough; a flange portion configured to be opposite to each other on the outer periphery of the body; and a protruding portion configured to be opposite to each other inside the body. In addition, a clamping device for pipe connections according to an embodiment of the present invention comprises: two pipes each having a tapered surface on a flange; a metal ring including a body having a ring shape and formed to pass therethrough, a flange portion configured to be opposite to each other on the outer periphery of the body, and a protruding portion configured to be opposite to each other inside the body, wherein the flanges of the pipes face each other to be coupled; and a clamp configured to cover and fasten the flanges of the pipes and be rotated with a plurality of link portions, and including a body having clip arms at both ends thereof and a tapered clip groove on the inner surface thereof, a fastening bolt fastened to the clip arms to tighten the body, and a stopper provided at one side of the body to be rotated by a hinge and having a fastening hole for preventing the release of the fastening bolt.

Description

Metal ring for pipe connections {Metal ring for pipe connections}

The present invention relates to a metal ring (metal ring) used to connect gas pipes to each other in a production facility of a semiconductor and a flat panel display (FPD) manufacturing process. Since the flange portion is implemented in the shape, and the protrusions are formed in a ring shape so as to face each other inside the flange portion, the flanges of the pipes are fastened so as to face each other inside the flange portions opposed to each other, so that the installation work of the pipe is easy, The protrusions facing each other are tightly pressed against the flange end of the pipe, thereby providing excellent airtightness and preventing gas leakage while maintaining a tight airtightness even when vibration and flow occur in the pipe.

In general, a semiconductor manufacturing process is a process of processing a silicon wafer in a high clean state, and is performed by various processes such as exposure, etching, diffusion, and deposition, and the manufacturing process of a flat panel display (FPD) is a glass plate cleaning and photosensitive liquid. The final product is completed by coating, exposure, development, corrosion, peeling, deposition, assembly and inspection.

In the semiconductor and FPD manufacturing process, the diffusion or deposition process is a process in which a process gas is injected in a high temperature atmosphere to cause a reaction on a wafer or a glass plate. The pipe is connected to the furnace.

The gas pipes installed in the production facilities of semiconductor and FPD manufacturing processes are installed in various forms depending on the structure of the production equipment and the conditions of the manufacturing process, and the gas tightness is prevented from leaking gas from the connection part of the pipes. The clamping device is installed to increase the.

Recently, as a technology for connecting gas pipes to each other, Korean Patent Laid-Open Publication No. 10-2013-0014846 has been presented, the prior art of the annular centering and O-ring disposed in the coupling region between the two pipes; A centering guide ring provided to surround both side surfaces of the centering radial side; A flange coupled around the shortest ends of the two pipes and disposed on both sides of the centering and the centering guide ring, respectively; And a clamping device arranged around the flange to compress and fix the flange to connect and seal the two pipes.

The prior art described above is a technique in which the centering and the O-ring and the centering guide ring are brought into close contact with both flanges by the crimping action of the clamping device, and the two pipes are connected to each other to seal each other, or the centering and the O-ring and centering guide rings are sandwiched between the two flanges. Next, as the clamping device is fastened to the circumference of the flange, the number of parts is increased, and thus, the installation work is cumbersome and delayed, while vibration and flow occur in the pipe, and there is a problem in that airtightness is easily lowered.

That is, the flanges provided in the two pipes while the operator is in contact with each other by inserting the centering and O-ring and centering guide ring between the flanges, and as the clamping device is fastened to the outer periphery of the flange, the installation work is cumbersome due to a number of parts, Not only is the coupling position of each component unstable during the fastening operation, but there is a problem in that the work is delayed.

In addition, the O-ring and the centering guide ring are tightly sealed at the end of the flange due to the crimping action of the clamping device. When vibration and flow occur in the high-pressure gas pipe, the O-ring and the centering guide ring flow finely at the end of the flange. As a result, there is a problem that the airtightness is lowered.

Republic of Korea Patent Publication No. 10-2013-0014846. Republic of Korea Patent No. 10-0822219.

The present invention is a cumbersome installation work due to a number of parts in the prior art of the conventional pipe connecting device, the coupling position of each component is unstable during the fastening operation, the operation is delayed, and when the vibration and flow in the pipe, As a technique devised to improve the deterioration problems, the flanges of the pipes are fastened to face each other inside the flange portion formed in a ring shape to face each other on the outer periphery, and the protrusions formed in a ring shape to face each other inside the flange part. Press-fitted to the flange end of the pipe, making it easy to install the pipe and providing excellent airtightness to prevent gas leakage and to maintain tight airtightness even when vibrations and flows occur in the pipe. The purpose is to provide.

The present invention has been made to solve the above-

First, the metal ring for pipe connection according to the present invention includes a body formed through the ring shape; A flange portion configured to face each other on an outer circumference of the body; And a protrusion configured to face each other inside the body.

In addition, as a preferred embodiment of the present invention, the flange portion is configured to have an inner diameter larger than the outer diameter of the flange of the pipe, it is configured to have a width in a range that does not deviate from the flange outer peripheral surface of the pipe, and the protrusion is an extension rib inward from the inner surface of the body It is formed, it characterized in that the conical shape is pointed in both sides facing each other on both ends of the end of the extension rib.

In addition, the clamping device for pipe connection according to the present invention comprises: two pipes having a tapered surface on the flange; Metal ring formed through the ring-shaped body, a flange portion configured to face each other on the outer periphery of the body, and a projection portion configured to face each other on the inside of the body, the flange of the pipe is coupled to each other metal ring and; Fastening wrapped around the flange of the pipe, the body is configured to be rotated by a plurality of link parts and the clip arm is formed on both ends and the tape groove in the tapered shape on the inner side, and the fastening to fasten the body by fastening to the both sides of the clip arm And a clamp including a bolt and a stopper rotatably installed on one side of the body, and a stopper having a fastening hole for preventing loosening of the fastening bolt.

According to an embodiment of the present invention, the flange portion is implemented in a ring shape so as to face each other on the outer periphery, and the protrusion is implemented in a ring shape so as to face each other inside the flange portion, so that the flange of the pipe inside the flange portion opposed to each other Are fitted to face each other and are fastened so that the installation work is easy, and the mutually opposing projections are pressed against the flange end of the pipe by the clamping action of the clamp, which is excellent in airtightness to prevent gas leakage while preventing vibration and flow in the pipe. It provides the effect of maintaining confidentiality even if it occurs.

In addition, the metal ring for pipe connection in the embodiment of the present invention is coupled to the flanges of the pipes to face each other inside the flange portion configured on both sides, so that the operation is easy to maintain the stable state in the installation work of the pipe And to provide an effect that is performed quickly.

1 is a perspective view showing a metal ring according to an embodiment of the present invention.
2 is a cross-sectional view showing a metal ring according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the assembly process of the metal ring in an embodiment of the present invention.
Figure 4 is a cross-sectional view showing an assembled state of the metal ring in an embodiment of the present invention.
Figure 5 is a sectional view of the main portion showing the assembly process of the metal ring in an embodiment of the present invention.
Figure 6 is a cross-sectional view showing another embodiment of a metal ring in the present invention.
Figure 7 is a perspective view of the clamp in an embodiment of the present invention.
Figure 8 is a side view showing the clamp in an embodiment of the present invention.
9 is a cross-sectional view showing an installation state of a pipe according to an embodiment of the present invention.

The main point in the embodiment of the present invention is the configuration of the flange portion opposed to each other is easy to install the pipe, the pressure action of the mutually opposing projections excellent airtightness to prevent gas leakage while generating vibration and flow in the pipe Even if it provides a metal ring and clamping device for the pipe connection to maintain a tight air tightness.

Looking at the main configuration of the metal ring for pipe connection according to an embodiment of the present invention with reference to the accompanying drawings, the body 10 formed through the ring shape; A flange portion 11 configured to face the outer circumference of the body 10; And a protrusion 13 configured to face each other inside the body 10.

In addition, looking at the main configuration of the clamping device for pipe connection according to an embodiment of the present invention, two pipes 100 having a tapered surface 120 on the flange 110; A body 10 formed through the ring shape, a flange portion 11 configured to face each other on the outer periphery of the body 10, and a protrusion 13 configured to face each other inside the body 10. The metal ring is implemented, the flange 110 of the pipe 100 is coupled to face each other; The flange 110 of the pipe 100 is wrapped and fastened, and is configured to be rotatable by a plurality of link portions 22, and clip arms 24 are formed at both ends thereof, and the clip groove 23 is tapered on the inner side. The body 21, the fastening bolt 25 is fastened to the both sides of the clip arm 24 and tightening the body 21, and installed on the one side of the body 21 by a hinge 27 so as to be pivotable And a clamp 20 including a stopper 26 having a fastening hole 28 to prevent loosening of the 25.

First, a metal ring for pipe connection according to an embodiment of the present invention will be described in detail.

In the embodiment of the present invention, the metal ring is preferably formed of aluminum or aluminum alloy having a lower hardness than the flange 110 of the pipe 100, and as shown in FIGS. 1 to 5, the body formed through the ring shape ( 10), a flange portion 11, an extension rib 12, and a projection portion 13.

The body 10 is configured in a ring shape through which the center penetrates, and is embodied in a diameter larger than the flange 110 of the pipe 100, and the flange portion 11 is ring-shaped so as to face each other on both sides of the outer circumference. The flange portion 11 is configured to have a larger inner diameter than the outer diameter of the flange 110 of the pipe 100 as a function of fitting and coupling the flange 110 of the pipe 100 to the inside.

Since the inner diameter of the flange portion 11 is larger than the outer diameter of the flange 110 of the pipe 100, the flange 110 of the pipe 100 may be interpolated inside the flange portion 11, and the flange portion ( 11) is formed to have a width in a range not to deviate from the outer peripheral surface of the flange (110) of the pipe (100).

On the other hand, the projection 13 in the configuration of the metal ring is a function to maintain the airtightness of the pipe is pressed to the flange 110 end of the pipe 100, the extension rib 12 is formed inward from the inner surface of the body 10 It is configured in a ring shape so as to face each other on both ends of the end of the extension rib (12).

The protrusion 13 is configured in a conical shape pointed in both sides facing each other, preferably configured to have an acute angle, as shown in Figure 4, the flange 110 of the pipe 100 facing each other on both sides in the figure It is implemented in a diameter larger than the inner diameter of the flange 110 so as to be in close contact with the end.

In addition, the protrusion 13 may be implemented in plural on both sides of the end of the extension rib 12, as shown in Figure 6, in this case a plurality of the end of the flange 110 of the pipe 100 facing each other on both sides As the protrusions 13 are in close contact with each other, the airtightness of the pipe can be further increased.

The metal ring for pipe connection having such a configuration is coupled to the flange 110 of the pipe 100 to face each other inside the flange portion 11 constituted on both sides, so that it is stably maintained in the installation work of the pipe. The operation can be carried out simply and quickly.

In addition, as the projections 13 having a low hardness on the end of the flange 110 of the pipe 100 are pressed by the pressing action, the airtightness is excellent, thereby preventing gas leakage and maintaining tight airtightness even when vibration and flow occur in the pipe. Can be.

Next, the clamping device for pipe connection according to the embodiment of the present invention will be described in detail.

Clamping device in the embodiment of the present invention as a function to maintain the airtightness by pressing the two pipes to each other, as shown in Figure 7 to 9, two pipes 100 provided with a flange 110, and the flange The metal ring is coupled between the 110, and the clamp 20 is wrapped to fasten the flange 110.

The two pipes 100 are each provided with a flange 110 at the end facing each other, the flange 110 is formed with a larger outer diameter than the pipe 100 while tapered surface 120 on the opposite surface of the end It is formed, the tapered surface 120 is configured to be inclined toward the end side of the flange (110).

As described above, the metal ring is composed of a body 10, a flange portion 11, an extension rib 12, and a protrusion 13 formed in a ring shape as described above, and the body 10 penetrates the center thereof. It is configured in a ring shape, the flange portion 11 is configured to have a ring shape so as to face each other on the outer peripheral side of the body 10 while having an inner diameter larger than the outer diameter of the flange 110 of the pipe (100).

Meanwhile, an extension rib 12 is formed inward from an inner side of the body 10, and protrusions 13 are formed in a ring shape so as to face each other at both ends of the extension ribs 12, and the protrusions 13 are formed. Conical pointed in both directions facing each other while being configured to a diameter larger than the inner diameter of the flange 110 to be pressed tightly to the end of the flange 110 of the pipe 100.

In addition, the clamp 20 is composed of a body 21, a fastening bolt 25, a stopper 26, wherein the body 21 is connected to a plurality of (2 to 3) link portions 22 to be rotatable. The clip arms 24 are formed to protrude from end portions facing each other, and the clip grooves 23 are formed in a tapered shape on the inner side.

Clip groove 23 formed in the tapered shape in the above, as shown in Figure 9, both sides of the pipe 100 in a state in which the flange 110 of the pipe 100 is coupled to face the flange 11 of the metal ring on both sides (11) The tapered surface 120) is narrower toward the outside so that it can be interpolated.

In addition, in the configuration of the clamp 20, the fastening bolt 25 is a function to press the flange 110 of the pipe 100 facing each other by tightening the body 21, the clip arm protruding from each other in the body 21 Is fastened to 24.

On the other hand, in the configuration of the clamp 20, the stopper 26 is a function to prevent the loosening of the fastening bolt 25, the pivoting to the hinge 27 on one side of the body 21 in which the head of the fastening bolt 25 is located. Is installed.

In the stopper 26 is one end is rotatably installed on the body 21 by the hinge 27, the other side is configured with a fastening hole 28 to prevent the fastening of the fastening bolt 25, wherein the fastening hole 28 is implemented when the head of the fastening bolt 25 is six angles, 6 to 8 angles, and is configured to be larger than the diameter of the head of the fastening bolt 25 to be easily fitted to the head of the fastening bolt 25.

As shown in FIG. 8, the stopper 26 having the above configuration has the stopper 26 in the direction of the head of the fastening bolt 25 in a state in which the fastening bolt 25 is coupled to the clip arm 24 of the body 21. When the fastening hole 28 is inserted into the head of the fastening bolt 25 by rotation, the head edge of the fastening bolt 25 is tightly caught by the corner and the inner circumferential surface of the fastening hole 28 so that the fastening bolt 25 is loosened. This is avoided.

The clamping device for pipe connection having such a configuration is provided with pipes on both flange portions 11 of the metal ring as shown in FIG. 4 in the state in which the operator faces the flanges 110 provided on the two pipes 100 to each other. Insert the flange 110 of the 100 to face each other, and rotate the body 21 of the clamp 20 to rotate, as shown in Figure 9, the clip groove on the tapered surface 120 of both side pipe 100 (23) is inserted and inserted, tightening the fastening bolts 25 in a state in which both sides of the body 21 are clipped to the clip arm 24 against each other.

When the clip arms 24 are fastened to each other by the fastening bolts 25, the inner space of the body 21 is narrowed, and the tapered clip grooves 23 of the tapered surfaces 120 of both pipes 100 are connected to each other. By pressurizing, as the pressing force acts on the both ends of the flange 110 of the pipe 100 and the both ends of the metal ring 13, the protrusion 13 is pressed against the end of the flange 110, thereby ensuring the airtightness of the pipe. .

Therefore, in the embodiment of the present invention, since the flanges of the pipes are fastened to each other so that the flanges of the pipes face each other, the installation work of the pipes is easy, and the protrusions of the metal rings are provided by the clamping action of the clamp. Due to the pressure tight contact with the flange end of the excellent airtightness to prevent gas leakage while the vibration and flow in the pipe can be maintained tightly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It is possible to carry out various changes in the present invention.

10: body 11: flange part
12: Extended rib 13: protrusion
13a: protrusion 20: clamp
21: body 22: link portion
23: clip groove 24: clip arm
25: Fastening Bolt 26: Stopper
27: hinge 28: fastener
100: piping 110: flange
120: tapered surface

Claims (5)

A body 10 formed through the ring shape; A flange portion 11 configured to face the outer circumference of the body 10; And a protrusion 13 configured to face each other inside the body 10.
The flange portion 11 is configured to have an inner diameter larger than the outer diameter of the flange 110 of the pipe 100, and is configured to have a width in a range not to deviate from the outer peripheral surface of the flange 110 of the pipe 100,
The protrusion 13 has an extension rib 12 formed inward from the inner side of the body 10, and is formed in a conical shape in both sides opposite to each other on both sides of the end of the extension rib 12 while being conical in shape. Metal ring for pipe connection, characterized in that implemented in a diameter larger than the inner diameter of the flange 110 to be in close contact with the flange 110 end of the pipe (100) facing each other.
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