KR20040013409A - Clamp for tightening pipe - Google Patents

Abstract

PURPOSE: A pipe clamp is provided to prevent the leakage of poisonous gas by firmly clamping the connected part of pipes. CONSTITUTION: A pipe clamp is composed of first and second clamp bodies(110,120) covering the outer circumference of a pipe, and a clamping assembly. Through holes(125a) are formed at the first and second clamp bodies. The first clamp body is coupled to the second clamp body by a hinge pin(125) fit into the through holes. Fixing units(112,122) are formed at the first and second clamp bodies, and have a through hole. The clamping assembly includes two nuts(162,165) and a fixing rod(163). The fixing rod has screw threads(163b,163c) coupled to the nuts.

Description

Plumbing clamp {CLAMP FOR TIGHTENING PIPE}

The present invention relates to a pipe clamp, and more particularly, to a pipe clamp that prevents leakage of toxic gas from the joint of pipes through which toxic gas passes.

In general, the semiconductor manufacturing field or the liquid crystal display device manufacturing field commonly produces a product using a thin film process. For example, a semiconductor product manufactured in the semiconductor manufacturing field manufactures a thin film transistor and capacitance using a thin film process, and a liquid crystal display manufacturing field manufactures a thin film transistor and a pixel electrode necessary for controlling a liquid crystal using a thin film process. do.

The thin film process is performed by thin film processing equipments that are very complex and require precision, and some of the many thin film processing equipments use toxic chemical gases to form, remove, or change the properties of thin films.

The highly toxic chemical gases used in the thin film process can cause fatal injury to workers even when very small amounts are leaked, and some of the highly toxic chemical gases are combined with oxygen in the atmosphere to ignite, and thus require thorough management.

Mostly toxic chemical gases are supplied from storage tanks to semiconductor manufacturing equipment via corrosion resistant piping.

In this case, the tank and the semiconductor manufacturing apparatus in which the toxic chemical gas is stored are most preferably connected in one pipe without a seam, in terms of leakage prevention, but this is practically impossible, and in practice, several pipes are connected to each other. .

At this time, the pipe and the joint portion of the pipe is the most vulnerable to the leakage of the toxic chemical gas.

1 is a perspective view of a pipe clamp that prevents leakage of a chemical gas at a joint portion of a conventional pipe and a pipe.

Pipe clamp 10 is composed of a pipe clamp body (3, 4), a pipe clamp tightening assembly (6).

The pipe clamp bodies 3, 4 consist of a first clamp body 3 with a fixing pin 2a, a second clamp body 4, and a hinge pin 5.

The first clamp body 3 and the second clamp body 4 have a semicircular shape to surround the outer circumferential surface of the pipe.

At this time, the first clamp body 3 and the second clamp body 4 have a rectangular tube groove shape, and the appearance is a donut shape. When these first clamp bodies 3 and the second clamp bodies 4 are arranged in a circle, the first clamp bodies 3 and the second clamp bodies 4 meet at two places.

Hereinafter, one of the two places where the first clamp body 3 and the second clamp body 4 meet each other is called a first end, and the other one is called a second end.

The first clamp body 3 and the second clamp body 4 are formed with through holes 5a which share the first ends in a state where the first ends are overlapped with each other so as to surround the outer circumferential surface of the pipe or to be separated from the outer circumferential surface of the pipe. .

The hinge pin 5 is fitted into the through hole 5a and fixed. The hinge pin 5 allows the first clamp body 3 and the second clamp body 4 to be hinged.

The fixing pin 2a is made of an aluminum material and is installed inside the rectangular tube groove of the first clamp body 3 of the first clamp body 3 and the second clamp body 4 which face each other at the second end.

The pipe clamp tightening assembly 6 serves to tighten the first clamp body 3 and the second clamp body 4.

To realize this, the pipe clamp tightening assembly 6 consists of a ring pin 6c and a butterfly nut 6d.

The ring pin 6c has a ring 6a formed at one end thereof, and a thread 6b formed at the other end thereof. The butterfly nut 6c is coupled to the thread 6b.

Figure 2 is a perspective view showing that the conventional pipe clamp and the pipe clamp tightening assembly is coupled.

In order for the pipe clamp fastening assembly 6 to clamp the pipe, the ring 6a of the ring pin 6c is first clamped while the butterfly nut 6d is coupled to the thread 6b of the ring pin 6c. It is caught by the fixing pin 2a of the body 3.

Subsequently, the butterfly nut 6d is rotated so that the butterfly nut 6d is advanced along the thread 6b so that the second clamp body 4 and the first clamp body 3 closely adhere to each other while the first clamp body 3 is closed. And clamp the pipe to the second clamp body (4).

However, the butterfly screw 6d of the conventional pipe clamp 10 is reversely rotated by the butterfly screw 6d according to the vibration of the pipe, and the first clamp body 3 and the second clamp body 4 pressurize the pipe. The power to weaken.

As a result, in the joint part of a piping, a problem arises, such as a leakage of a toxic chemical gas or a fire by the leaked gas.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a pipe clamp which prevents leakage of chemical gas at a joint portion connecting two pipes.

1 is a perspective view of a pipe clamp that prevents leakage of a chemical gas at a joint portion of a conventional pipe and a pipe.

Figure 2 is a perspective view showing that the conventional pipe clamp and the pipe clamp tightening assembly is coupled.

3 is a perspective view of a pipe clamp to prevent the leakage of chemical gas in the pipe and the joint portion according to an embodiment of the present invention.

Figure 4 is a perspective view showing that the pipe clamp body and the two-way pipe clamp tightening assembly according to an embodiment of the present invention is coupled.

Figure 5 is a perspective view showing that the pipe clamp is installed in the pipe according to an embodiment of the present invention.

In order to realize the object of the present invention, the present invention, in order to surround the outer surface of the connecting portion of the two pipes connected to each other, the first ends facing each other are hinged by a hinge (hinge), the opposite second ends are partially outwardly Is bent to form a fixing part, the fixing part being fitted into the first and second clamp bodies and through holes, each having through holes, and having a fixed rod with threads formed on both sides, and a nut screwed to the threads, respectively. A plumbing clamp comprising a plumbing clamp tightening assembly is provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a pipe clamp to prevent the leakage of chemical gas in the pipe and the joint portion according to an embodiment of the present invention.

Pipe clamp 100 is composed of a pipe clamp body 130, a bidirectional pipe clamp tightening assembly 160.

Pipe clamp body 130 is composed of a first clamp body 110, the second clamp body 120, the hinge pin 125.

The first clamp body 110 and the second clamp body 120 has a semi-circular shape to surround the outer peripheral surface of the pipe.

At this time, the first clamp body 110 and the second clamp body 120 has a rectangular tube groove shape and the appearance is a donut shape.

When the first clamp body 110 and the second clamp body 120 are arranged in a circular shape, the first clamp body 110 and the second clamp body 120 meet at two locations. Hereinafter, one of two places where the first clamp body 110 and the second clamp body 120 meet each other is called a first end, and the other one is called a second end.

The first clamp body 110 and the second clamp body 120 is formed with a through hole (125a) to share the first end in the overlapping state to surround the outer peripheral surface of the pipe or to be separated from the outer peripheral surface of the pipe .

The hinge pin 125 is fitted into the through hole 125a and fixed. The hinge pin 125 allows the first clamp body 110 and the second clamp body 120 to be hinged.

Second ends of the first clamp body 110 and the second clamp body 120 have fixing parts 112 and 122 that are partially bent outward.

The fixing parts 112 and 122 of the first clamp body 110 and the second clamp body 120 are formed with through holes or concave grooves facing each other.

The bidirectional pipe clamp tightening assembly 160 serves to tighten the first clamp body 110 and the second clamp body 120.

To implement this, the pipe clamp tightening assembly 160 is comprised of two butterfly nuts 162 and 165 and a fixed rod 163.

The fixing rod 163 is formed to be longer than the length of the fixing parts 112 and 122 in a state where the first pipe clamp 110 and the second pipe clamp 120 are in contact with each other.

Threads 163b and 163c are formed at both ends of the fixed rod 163, respectively. In this case, the threads may be all formed in the same direction or may be formed in different directions.

The two butterfly nuts 162 and 165 are screwed to the threads 163b and 163c formed at both ends of the fixing rod 163.

Figure 4 is a perspective view showing that the pipe clamp body and the two-way pipe clamp tightening assembly according to an embodiment of the present invention is coupled. Figure 5 is a perspective view showing that the pipe clamp is installed in the pipe according to an embodiment of the present invention.

4 or 5, in order for the bidirectional pipe clamp tightening assembly 160 to clamp the pipe, the fixing rod 163 is first coupled to the concave grooves or opposite through holes of the fixing parts 112 and 122, and then the butterfly nut. 162 and 165 are screwed to the threads 163b and 163c of the fixing rod 163.

Subsequently, the two butterfly nuts 162 and 165 are rotated to move the butterfly nuts 162 and 165 along the threads 163b and 163c so that the second clamp body 120 and the first clamp body 110 closely adhere to each other. Pipes are clamped to the clamp body 110 and the second clamp body 120.

As described in detail above, the pipe clamp clamping the joint portions of the two pipes is prevented from being released by the vibration of the pipe, thereby preventing the toxic gas from leaking from the pipe or the fire caused by the leaked gas.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (4)

In order to surround the outer surface of the connection part of the two pipes connected to each other, the first ends facing each other are hinged by a hinge, and the second ends facing each other are bent outwardly to form a fixing part, and each of the fixing parts penetrates. First and second clamp bodies formed with balls; And And a bidirectional pipe clamp tightening assembly having a fixing rod fitted to the through holes and having threads formed on both sides thereof, and a nut screwed to each of the threads. The pipe clamp of claim 1, wherein the threads are formed in opposite directions. The pipe clamp of claim 1, wherein the nut is a butterfly nut. The pipe clamp of claim 1, wherein each of the first and second clamp bodies has a semi-circular rectangular tube groove shape.