KR200399466Y1 - Latch Clamp for pipe - Google Patents

Abstract

The present invention provides a latch clamp for piping having an improved structure that is not easily released despite the action of an external force such as a vacuum. The latch clamp is formed in a semicircular shape to surround the outer peripheral surface of the connection portion of the two pipes to be connected to each other, the first and second clamp bodies having first and second ends facing each other, the first end facing each other. The hinged, opposing second ends are partially bent outwardly so as to be fastened and detachable from each other, each of the second ends having a recess recessed a predetermined depth from an upper end thereof, the second of the first clamp body An end portion extends from a predetermined portion of the surface opposite the second end portion of the second clamp body, the lower surface thereof having a tooth portion composed of a plurality of teeth, and the second end portion of the second clamp body has a bottom portion of its recessed portion. First and second clamp bodies formed having a tooth fixing portion coupled to at least one of a plurality of teeth of the tooth portion; And one end of which is hinged to the concave portion of the second end of the second clamp body, the other end of which is rotatable, a fixed rod having threads formed on an outer circumferential surface thereof, and a nut which is extrapolated to the fixed rod and screwed to the fixed rod It includes a tightening assembly comprising a.

Description

Latch Clamp for Pipe

The present invention relates to a pipe latch clamp, and more particularly, to a pipe latch clamp that can substantially prevent the leakage of gas from the joint of the gas supply pipes.

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 a semiconductor manufacturing field manufactures a thin film transistor and a capacitor 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 thin film.

Toxic chemical gases used in thin film processes can cause fatal injuries to workers even at very low levels of leakage, and some of the highly toxic chemical gases are combined with oxygen in the atmosphere to ignite.

Most of the highly toxic chemical gases are fed from gas storage tanks to semiconductor manufacturing equipment via highly corrosion resistant piping.

At this time, the tank and the semiconductor manufacturing equipment in which the toxic chemical gas is stored is most preferable in terms of preventing leakage, but it is almost impossible to connect the pipes with no joints, but in practice, it is almost impossible to connect several pipes to each other. .

For this reason, the pipe and the joint part of the pipe are the most vulnerable to gas leakage.

1 is a perspective view of a piping latch clamp for preventing the leakage of chemical gas in the pipe and the joint portion of the pipe according to the prior art.

The latch clamp 10 for piping includes a clamp body 3 and 4 and a clamp fastening assembly 6.

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

The first and second clamp bodies 3 and 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 has a rectangular cylinder shape, the appearance is a donut shape. When the first clamp body 3 and the second clamp body 4 are arranged in a circular shape, the first clamp body 3 and the second clamp body 4 meet at two locations.

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 have through-holes 5a shared in the state where the first ends are overlapped with each other so as to surround the outer circumferential surface of the pipe or 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 among the first clamp body 3 and the second clamp body 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 implement 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 combined.

In order for the pipe clamp tightening assembly 6 to clamp the pipe, first, the ring 6a of the ring pin 6c is connected to the first thread of the ring pin 6c in a state where 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 clamp 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 and thus the first clamp body 3 And clamp the pipe to the second clamp body (4).

However, in the thumb screw 6d of the conventional pipe clamp 10, the thumb screw 6d is reversely rotated in response to the vibration of the pipe so that the first clamp body 3 and the second clamp body 4 pressurize the pipe. The power to weaken.

As a result, a problem arises such that a toxic chemical gas leaks to the joint portion of the pipe, or a fire occurs due to 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 latch clamp for piping for preventing leakage of chemical gas at a joint portion connecting two pipes.

It is also an object of the present invention to provide a latch clamp for piping having an improved structure that is not easily released despite the action of an external force such as a vacuum.

In order to achieve the above object, the present invention is made of a semi-circular shape to surround the outer peripheral surface of the connecting portion of the two pipes to be connected to each other, as first and second clamp bodies having first and second ends facing each other The opposing first ends are hinged, and the opposing second ends are partially bent outwardly to be fastened and detached from each other, and each of the second ends has a recess recessed to a predetermined depth from an upper end thereof. The second end of the first clamp body extends from a predetermined portion of the surface opposing the second end of the second clamp body, the lower surface thereof having a tooth portion consisting of a plurality of teeth, the second of the second clamp body An end portion having first and second clamp bodies formed at the bottom of the concave portion thereof and having a tooth fixation portion engaged with at least one of the plurality of teeth of the tooth portion; And one end of which is hinged to the concave portion of the second end of the second clamp body, the other end of which is rotatable, a fixed rod having threads formed on an outer circumferential surface thereof, and a nut which is extrapolated to the fixed rod and screwed to the fixed rod. Includes a tightening assembly comprising a, wherein the tightening assembly is separated for when the pipe is completely folded to the second end of the second clamp body in a position fixedly coupled to the second end of the first clamp body Provide latch clamps.

Preferably, the fixing portion of the second end of the second clamp body has an inclined surface, the inclination direction of the inclined surface is the same as the inclination direction of the plurality of teeth.

Preferably, the nut is a butterfly nut.

Preferably, the first and second clamp bodies have a semi-circular rectangular tube groove shape.

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 latch clamp for preventing the leakage of the chemical gas in the pipe and the joint portion of the pipe according to an embodiment of the present invention, Figure 4 is a coupled state of the pipe latch clamp according to the present invention 5 is a perspective view illustrating the structure of the coupling part of FIG. 4.

The latch clamp 100 includes a clamp body 130 and a clamp tightening assembly 160.

The clamp body 130 includes a first clamp body 110, a second clamp body 120, and a hinge pin 125.

The first clamp body 110 and the second clamp body 120 has a semicircular shape to surround the outer circumferential surface of the pipe.

The first clamp body 110 and the second clamp body 120 has a donut shape appearance in the shape of a square tube groove.

When the first and second clamp bodies 110 and 120 are arranged in a circle, the first clamp body 110 and the second clamp body 120 may 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 have a through hole 125a which is shared in a state where the first ends are overlapped with each other so as to surround the outer circumferential surface of the pipe or be separated from the outer circumferential 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.

The second ends of the first clamp body 110 and the second clamp body 120 have fixing parts 112 and 122 bent outwardly.

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 second end of the first clamp body 110 extends from a predetermined portion of the surface opposing the second end of the second clamp body 20, and has a tooth 170 formed on its lower surface with a plurality of teeth. The second end of the second clamp body 120 has a tooth fixing portion 180 formed in the recess thereof and coupled with at least one of the plurality of teeth 172 of the tooth portion 170. In addition, the tooth fixing unit 180 has a protrusion 182 that is toothed with one of the plurality of teeth. The tooth part 170 and the tooth fixing part 180 constitute a first fastening part. In order to allow the plurality of teeth 172 and the protrusion 182 of the tooth fixing part 180 of the tooth part 170 to be movable only in one direction in a fastened state, the teeth and tooth fixing part of the tooth part 170 may be The projection of 180 has an inclined surface inclined in the same direction.

The toothed portion 170 is a toothed portion when a force greater than a predetermined value is applied to the toothed portion 170 from the outside of the second end of the first clamp body 110 and the second end of the second clamp body 120 to the inside. Although it is possible to move to a predetermined position past the projection of 180, it is impossible to move when a force is applied in the outward direction. That is, a force is applied to the tooth portion 170 and the tooth fixing portion 180 from the outside of the second end of the first clamp body 110 and the second end of the second clamp body 120 to fasten the two pipes. When applied, the teeth 172 of the tooth portion 170 is coupled at a predetermined position with the protrusion 182 of the tooth coupling portion 180 by the applied force. In order to release the tooth 170 and the tooth coupling portion 180, the pipe clamp tightening assembly 160 to be described later is completely flipped to a release state so that the release surface 165b of the release protrusion 165 is a release release surface of the protrusion fixing portion ( By pressing 180a).

The pipe clamp tightening assembly 160 constitutes a second fastening portion, and serves to tighten the first clamp body 110 and the second clamp body 120.

To this end, the pipe clamp tightening assembly 160 includes a butterfly nut 162 and a fixed rod 163.

The fixed rod 163 has a release protrusion 165 which is hinged to the second end of the second clamp body at one end thereof. The hinged release protrusion 165 of the fixing rod 163 includes a first surface 165a that contacts the upper surface 180a of one side of the tooth fixing part 180 in the locked state of the pipe clamp, and the pipe clamp is opened. It has a second surface, that is, a release surface (165b) in contact with one side upper surface (180a) of the tooth fixing portion 180 in the state. In order to release the latch clamp, when the fixing rod 163 is rotated by 180 degrees and fully flipped, the release surface 165b, which is the second surface, presses an upper surface of one side of the fixing portion 180 to the tooth portion 170. As the teeth 172 and the projections 182 of the tooth fixing part 180 are spaced apart, the teeth 170 may be separated.

4 and 5, in order for the latch clamp for piping of the present invention to clamp the pipe, first, the tooth portion 170 of the first clamp body 110 is applied to the second clamp body by a predetermined force. 120 is inserted into the tooth fixing portion 180. Then, after the fixing rod 163 is coupled to the concave groove or the opposing through hole of the fixing portions 112 and 122, the butterfly nut 162 is screwed to the thread 163a of the fixing rod 163.

Subsequently, the butterfly nut 162 is rotated so that the butterfly nut 162 is advanced along the thread 163a so that the second clamp body 120 and the first clamp body 110 are in close contact with each other. And the pipe is clamped to the second clamp body 120.

To release the latch clamp, first, the butterfly nut 162 is rotated in the opposite direction so that the butterfly nut 162 retracts along the thread 163a, and then the fixing rod 163 is rotated by 180 degrees to fully unfold. As such, in the state in which the fixing rod 163 is completely folded, the release surface 165b of the release protrusion 165 of the fixing rod 163 presses the upper surface 180a of the one side of the tooth fixing portion 180. The latch clamp is released by disengaging the tooth 170.

As described above, the pipe clamps clamping the joints of the two pipes are not released by the vibration of the pipes so that no toxic gas leaks from the pipes or fires caused by the leaked gas are generated.

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

1 is a perspective view of a latch clamp for piping to prevent the leakage of chemical gas in the pipe and the joint portion of the conventional pipe.

Figure 2 is a perspective view showing that the latch clamp and latch clamp fastening assembly is combined for a conventional pipe.

Figure 3 is a perspective view showing a state before coupling of the latch clamp for the pipe according to the present invention.

Figure 4 is a perspective view showing a coupled state of the latch clamp for piping according to the present invention.

FIG. 5 is a detailed view of the parts constituting the fastening part of FIG. 4. FIG.

Claims (4)

First and second clamp bodies having a semicircular shape to surround the outer peripheral surface of the connecting portion of the two pipes to be connected to each other, and having first and second ends facing each other, wherein the first and second ends are hinged, Opposite second ends are partially bent outwardly so as to be fastened and detached from each other, each of the second ends having a recess recessed to a predetermined depth from an upper end thereof, and a second end of the first clamp body being the second Extending from a predetermined portion of the surface opposite the second end of the clamp body, the lower surface of which has a tooth portion consisting of a plurality of teeth, the second end of the second clamp body being formed at the bottom of the recessed portion of the tooth portion First and second clamp bodies having a tooth lock coupled with at least one of the plurality of teeth; And One end thereof is hinged to the concave portion of the second end of the second clamp body, the other end is rotatable, and a fixed rod with threads formed on its outer circumferential surface and a nut extrapolated to the fixed rod and screwed with the fixed rod. And a tightening assembly, wherein the tightening assembly is separated when fully tightened toward the second end of the second clamp body in a position fixedly coupled to the second end of the first clamp body. clamp. The latch clamp for piping according to claim 1, wherein the fixing part of the second end of the second clamp body has an inclined surface, and the inclined direction of the inclined surface is the same as that of the plurality of teeth. The latch clamp of claim 1, wherein the nut is a butterfly nut. The latch clamp for piping according to claim 1, wherein the first and second clamp bodies have a semicircular rectangular tube groove shape.