KR200197249Y1 - A coupler for piping of complex pipe - Google Patents

Abstract

The present invention is to form a polyethylene synthetic resin tube integrally on the inner circumferential surface of the aluminum tube to withstand high pressure gas and fluid pressure, but when connecting the composite tube coated with synthetic resin on the outer circumferential surface to the device or another pipeline, aluminum The present invention relates to a connector for a composite pipe piping, which prevents corrosion due to contact with dissimilar metals and enables a simple connection.

That is, the head portion is formed in the center of the connector body having a hollow pipe path to enable screwing and loosening, and on one side there is a spiral portion for connecting to the apparatus, the sealing material for airtight acting on the outer peripheral surface of the joint pipe A projection having a ring groove formed to be seated, a groove formed at one side of the head portion leading to the root portion of the joint pipe, and accommodating a tip of the tubular body fitted to the joint pipe, and on a clogging surface of the groove provided by the protrusion. The inclined surface which is formed to be exposed to the front end surface of the pipe body inserted therein and the inclined surface is coupled to the outer circumferential surface of the pipe body inserted into the joint pipe at the same time to compress the sealing material interposed therein to provide airtightness and pressure resistance The construction of the ring simplifies the piping work and improves airtightness and durability.

Description

A coupler for piping of complex pipes

The present invention is a connector for a composite pipe, more specifically, a composite pipe formed by integrally forming a polyethylene synthetic resin pipe on the inner circumferential surface of an aluminum pipe to withstand high pressure gas and fluid pressure, and having a synthetic resin coated on the outer circumferential surface of the pipe or another pipe. When connecting, aluminum, a component of a composite pipe, prevents corrosion due to contact with dissimilar metals, and also relates to a connector for a composite pipe piping, which enables a simple connection.

In general, various types of pipelines are installed in various industrial facilities and residential facilities for the purpose of supplying and supplying fluid fuel, and these pipeline facilities simplify the connection structure of the connecting portion and the turning portion to facilitate the piping work. In this regard, pressure resistance and durability suitable for the characteristics of the fluid are important.

That is, when connecting pipes to equipment or extending the length of pipes, the joints withstand the internal pressure, external shock and corrosion while maintaining the airtightness of the joints. There is a need for piping connections that can prevent leakage and leakage.

1A and 1B are exploded perspective views showing a conventional pipe connector and a cross-sectional configuration diagram showing a connection state thereof, wherein the connector body 1 is a spiral portion connected to the apparatus with a head 2 formed to be screwed in the center; (3) is provided on one side, but is composed of a hollow body having a nipple (4) connected to the pipe (P) on the other side, the pipe (P) is installed while maintaining an appropriate interval on the outer peripheral surface of the nipple (4) Inserted into the inner side of the spiral support pipe (5), the nipple (4) through the O-ring (6) for sealing the contact surface of the pipe (P), but the outside of the pipe (P) to reduce the inner diameter of the nipple ( 4) the lock nut 8 is fastened to the spiral support pipe 5 after the compression ring 7 is brought into close contact therewith.

However, the conventional pipe connector uses a compression ring (7) in close contact with the outer circumferential surface of the pipe (P) in order to maintain the airtightness and pressure resistance when connecting the pipe (P) to the connector body 1 and the spiral for fixing the compression ring As well as the support pipe (5) to be formed, as well as fastening the lock nut (8) thereon, many parts were required to maintain airtightness and the process according to the piping work was complicated.

In other words, the structure of the connector connecting the pipe and the pipe is complicated and the components cost a lot of uneconomical disadvantages to increase the manufacturing cost, there was a problem that the installation cost increases by increasing the number of work in proportion to the number of parts.

In particular, the structure of the pipe connector is suitable for the item of the pipe material is made of a synthetic resin, when connecting the so-called composite pipe coated with a synthetic resin material in and out of aluminum material by the contact between the metal constituting the pipe connection and the metal constituting the pipe. There was also a cumbersome problem such as interposing a separate barrier material to prevent corrosion.

The present invention has been made in view of the above problems of the conventional pipe connection, the object is to provide a complex pipe piping connector that can be connected to a large number of pipes while working closely with a simple structure.

The present invention for achieving this purpose, the head portion is formed to be screwed and loosened by using a tool in the center of the connector body having a hollow pipe, but the spiral portion for connecting to the appliance or another pipe on one side In the provided, at least one ring groove formed to be seated on the outer circumferential surface of the joint pipe and the tube body extending to one side of the head portion extending to the root portion of the joint pipe to be fitted to the joint pipe A projection having a groove to receive the tip, and an inclined surface formed on the blocked surface of the groove provided by the protrusion to prevent the metal exposed to the tip surface of the pipe body inserted therein from contacting the inclined surface to prevent corrosion; It is bound to the outer circumferential surface of the inserted pipe and simultaneously compresses the sealing material intervening inside. By constructing the retaining ring to the ball, characterized in that, while simplifying the piping operation to be improved air-tightness and durability.

1A and 1B are a perspective view showing an example of a conventional pipe connector and a cross-sectional configuration diagram connecting a synthetic resin pipe to the connector;

Figure 2 is an exploded perspective view of a connector for a composite pipe piping of the embodiment of the present invention,

Figure 3a and 3b is a cross-sectional view showing a state before and after clamping by connecting the composite pipe to the connector of the embodiment,

Figure 4a and 4b is a cross-sectional view showing a state before and after clamping by connecting the composite pipe to the connector of another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: connector body 11: hollow tube

12: head part 13: spiral part

14: pipe 20: sealing material

21: ring groove 30: protrusion

31: groove 32: slope

40: retaining ring

Hereinafter, with reference to the accompanying drawings, the connector for a composite pipe piping of the present invention are as follows.

Figure 2 is an exploded perspective view of the connector for the composite pipe piping of the embodiment of the present invention, Figure 3a and 3b is a cross-sectional view showing a state before and after clamping by connecting the composite pipe to the connector of the embodiment, with a hollow pipe 11 The head part 12 is formed in the center of the connector body 10 by using a tool to tighten and loosen the screw, and on one side of the head part 12, a spiral part 13 for connecting to an apparatus or another pipe line. ) Is provided, but the other side is integrally formed with a joint pipe 14 inserted into the inner circumferential surface of the pipe body P for piping.

At least one ring groove 21 is formed on an outer circumferential surface of the fitting pipe 14 so that an oval or plate-shaped sealing material 20 may be seated, and the head portion 12 that is connected to the root portion of the fitting pipe 14 is formed. The protrusion part 30 provided with the groove | channel 31 is formed so that the front-end | tip part F of the tubular body P connected to the fitting pipe 14 may be accommodated.

Preferably, the inclined surface 32 is formed on the blocked surface of the groove 31 provided by the protruding portion 30 so that the tip surface of the inserted tubular body P does not come into contact with each other. It is also possible to form 33.

That is, the tubular body P connected by the connector body 10 is formed of a polyethylene-based synthetic resin tube 101 on the inner circumferential surface of the aluminum tube 100 and a coating layer 102 of synthetic resin material on the outer circumferential surface thereof. In this case, since the corrosion occurs when the metal (brass) constituting the connector body is in contact with the aluminum tube 100 of the composite tube, it is exposed to the tip of the tube P by the inclined surface 32 or V-shaped groove 33. Do not touch the finished aluminum tube.

The outer peripheral surface of the pipe body (P) inserted into the joint pipe 14 is coupled to the fixing ring 40 which provides airtightness and pressure resistance by simultaneously compressing the sealing material 20 interposed therein, the fixing ring 40 is It is bound by the exclusive tool 50 so that a binding action may be performed on the outer surface at the same position as the sealing material 20.

On the other hand, Figures 4a and 4b is a cross-sectional view showing a state before and after clamping by connecting the composite pipe to the connector of another embodiment of the present invention, two different on the outer peripheral surface of the joint pipe 14 is inserted into the inner peripheral surface of the pipe (P) After forming the ring groove 21 of each of the sealing material 20 is inserted into the fixed ring 40 made of tubular on the outer peripheral surface.

Therefore, the connector for the composite pipe piping of the present invention as described above is screwed to the spiral portion 13 provided on one side of the connector body 10 to the device and device for supplying fluid to the head 12 by using a tool By being tightened, the tube P is inserted into the joint pipe 14 exposed to the outside in a state where mounting is completed.

When fitting the tube (P) as described above, the fixing ring 40 is positioned on the outer circumferential surface, and the front end surface of the tube (P) in the groove 31 provided by the joint pipe 14 and the protrusion 30. After the fixing ring 40 is stopped at the same position as the sealing material 20 seated in the ring groove 21 of the joint pipe 14, the fixing ring 40 is coupled, and the fixing is performed. Fixing ring by using a dedicated tool 50 manufactured to clamp in proportion to the distance of each part so that the ring 40 is located outside of the same point as the sealing material 20 located inside the tubular body P. In the binding action of 40, the sealing material 20 is to be accurately sealed.

On the other hand, the pipe body (P) connected by the connector body 10 is a so-called composite pipe formed with a polyethylene-based synthetic resin tube 101 on the inner circumferential surface of the aluminum tube 100 and a coating layer 102 of synthetic resin on the outer circumferential surface thereof. In this case, the pipe body (P) by the inclined surface 32 or V-shaped groove 33 formed in the groove even when the pipe body (P) is deeply inserted into the groove 31 provided by the fitting pipe 14 and the protrusion (30) Aluminum tube 100 exposed at the tip of the) is not in contact with the metal (brass) surface constituting the connector body can contact the synthetic resin layer to prevent corrosion of the aluminum tube due to the contact of dissimilar metals.

The composite pipe piping connector of the present invention has the effect that it can be constructed in a simple way while minimizing the number of parts and the labor required according to the pipe of the pipe that requires airtightness, and the composite pipe with a metal layer as well as a single material It also has the advantage of preventing the corrosion caused by the contact between dissimilar metals during the pipework, extending the service life.

Claims (2)

The head part 12 is formed at the center of the connector body 10 having the hollow pipe line 11 so that the screw can be tightened and loosened by using a tool, and the spiral part for connecting to a device or another pipe on one side thereof. In having (13), At least one ring groove 21 formed to allow the sealing material 20 to be airtightly mounted on the outer circumferential surface of the fitting pipe 14, and one side of the head part 12 which extends to the root portion of the fitting pipe 14. Protruding portion 30 having a groove 31 so as to receive the tip portion F of the tubular body P, which is extended to be fitted into the fitting pipe 14, and the groove 31 provided by the protruding portion 30. On the inclined surface 32 to prevent corrosion by preventing the metal exposed to the front end surface of the pipe body (P) inserted in the blocked surface and inserted therein, and on the outer peripheral surface of the pipe body (P) inserted into the joint pipe (14) Combined pipe joints characterized in that the constitution including a fixing ring (40) to provide a gas tightness and pressure resistance by simultaneously sealing the sealing material (20) intervening therein. The method according to claim 1, wherein two outer ring grooves (21) are formed on the outer circumferential surface of the joint portion (14) to fit the sealing member (20) of oval and plate-shaped rings, and then a single tubular shape on the outer circumferential surface of the tubular body (P). Connecting pipe for composite pipe piping, characterized in that the binding ring (40).