KR200179507Y1 - A coupler for synthetic resin piping - Google Patents

Abstract

The present invention relates to a joint for a synthetic resin pipe, the connection between the pipe 30 and the pipe which is required to maintain the airtight fluid and gas pipelines can be simply press-bonded without damage to the components in one press operation rather than complicated screw coupling In order to be able to reduce the labor cost while reducing the number of work, so that the end of the pipe (30) to be inserted can be fixed to the tube insertion groove (15) grooved gongjeonggwa 14 is a joint body ( 10 is formed in the middle of the ring, the ring fitting groove 12 is fitted with a rubber ring sealing ring 25 so that the inside of the end of the pipe 30 is inserted into the tube fixing portion 14 can be kept airtight (13) the curved groove 11 is protruded to one side, so that the threaded portion 16 is formed on the other side opposite the fastening portion 11 so as to be coupled to another pipe, the compression tool 40 By Metal that is fitted to the outside of the end of the pipe 30 so that the end of the pipe 30 is pressed by a pressing action and can be pressed into the ring fitting grooves 12 and 13 recessed in the fastening portion 1 of the joint body. Joint fixing ring 20 of the material is a curved groove to the position fixing groove 21 in the center and the compression rings 22, 23 of the metallic material is fastened to both inner sides thereof.

Description

Joint for synthetic resin piping {A coupler for synthetic resin piping}

The present invention relates to a joint for a synthetic resin pipe that connects the pipe and the pipe between the fluid and gas pipelines, and more specifically, the pipe-sealed connection of the synthetic resin material is easy to plastic processing in one press operation rather than cumbersome screw coupling The present invention relates to a joint for synthetic resin that can be simply pressed without damaging the components.

In general, with the radical development of science and technology and economic growth, more convenient functions and conveniences are required throughout the consciousness in the living environment.In particular, in the living environment, living water or fuel in living spaces such as high-rise buildings or houses and apartments An important infrastructure problem is the connection relationship between pipes and pipes that allow gas to be safely supplied from a remote source to a corresponding place of use.

In other words, in the connection and extension of pipes and pipes through separate pipe fittings, it is possible to reliably keep the connection part between these pipes from internal pressure or external shock to prevent leakage and leakage of contents passing through the pipes. Pipe fittings for pipe connection are required.

6 and 7 illustrate the external structure of the pipe joint and the separated state of the pipe joint according to the prior art for connecting the pipe to the pipe, and the internal structure of the pipe joint. The fastening part 111 to which the sealing ring 125 is inserted to be inserted and sealed is protruded to one side, and the pipe fixing part 115 is formed to fix the pipe 130 inserted over the fastening part 111 so as not to be separated. On the other side of the other side of the fixing portion 115, with the joint body 110, which is formed with a threaded portion 116 to be screwed with the other pipe, is inserted into the fixing portion 115 of the joint body 110 Compression ring 122 is inserted over the pipe 130 to maintain the airtightness and the fixing nut for fastening over the pipe fixing part 115 of the joint body in which the pipe 130 is fitted to integrally couple these joint body 110 and the pipe 130 ( 120) Yieumgu the pipe that connects the pipe 130 and the pipe was made by sex.

That is, the conventional pipe fittings are not only complicated structure of the joint body 110, but also inserted into the compression ring 122 in the state in which the pipe 130 to be connected to the fastening portion 111 of the joint body and fixed thereon After tightening the nut 120, the nut part 114 in the middle of the joint body 110 is fixed to a crimping tool such as a spanner (not shown in the drawing), and another crimping tool is used to secure the joint of the joint body. The pipe 130 could be integrally coupled to the joint body 110 by the screwing force of the fixing nut 120 by rotating and screwing the fixing nut 120 pre-tightened to the 115.

Therefore, the structure of the joint body 110 connecting the pipe 130 and the pipe is very complicated and there are many components and the manufacturing cost is high, and the joint body 110 and the pipe (through the fixing nut 120) In addition to the crimping tool for finally fixing the 130 is required more than necessary, the compression ring 122 is inserted into the joint body 110 and the pipes to integrally connect the joint body 110 and the pipe 130 and pipe There is a problem in that the number of workmanship such as having to insert the 130 and finally the fixed nut 120 is rotated as a separate crimping tool and very cumbersome.

In this regard, the present invention was devised to solve all the problems of the existing pipe fittings used for the pipe-to-pipe connection of synthetic resin by screwing. The purpose of the present invention is to provide a joint for a synthetic resin pipe that can reduce the labor cost while reducing the labor cost by simply pressing and pressing without damaging the components by one press operation.

1 is a half-sectional view of the separated state of the joint for synthetic resin pipe according to the first embodiment of the present invention.

Figure 2 is a cross-sectional view of the coupling operation state for pressing the pipe joint of the synthetic resin pipe according to the first embodiment of the present invention with a crimping tooth tool.

Figure 3 is a half-sectional view of the state in which the joint for the synthetic resin pipe joint according to the first embodiment of the present invention is a pressure-coupled pipe.

Figure 4 is a half-sectional view of the separated state of the joint for synthetic resin piping according to a second embodiment of the present invention.

5 is a half-sectional view of a state in which a joint for a synthetic resin pipe fitting according to a second embodiment of the present invention is press-bonded with a pipe.

Figure 6 is a perspective view of the separation state of the joint for synthetic resin piping according to the prior art.

7 is a cross-sectional view of the coupling state of the joint for synthetic resin piping according to the prior art.

Explanation of symbols on the main parts of the drawings

10: joint body 11: fastening portion

12,13: Ring Fit Home 14: Official Government

15: tube insertion groove 16: screw

20: joint fixing ring 21: position fixing groove

22: compression ring 23: compression ring

25: sealing ring 30: pipe

40: crimping tool 42: pressing end

As a technical means for achieving the above object, the joint for the synthetic resin pipe according to the present invention, the tube insertion groove grooved so that the end of the pipe to be inserted can be fixed is formed to protrude in the middle of the joint body, The ring fitting groove into which the sealing ring of rubber material is fitted so that the inside of the end of the pipe inserted around the pipe fixing part can be kept airtight is formed so that the fastening portion having a curved groove is formed to protrude to one side and can be connected to another pipe. The thread is formed on the other side of the opposite side, and the metal part is fitted to the outside of the end of the pipe so that the end of the pipe is pressed by the pressing operation by the crimping tool and press-fitted into the ring fitting groove recessed in the joint of the joint body. Joint fixing ring is curved groove with fixed groove in the center and metal compression ring is fastened to both inner side It characterized.

The end of the pipe to be inserted is secured so that the end of the pipe is inserted into the groove of the pipe is grooved in the middle of the joint body, and the inside of the end of the pipe is inserted into a rubber material so as to be kept airtight The ring fitting groove into which the sealing ring is fitted is formed with a curved recessed fastening portion protruding to one side, and a screw portion is formed on the other side opposite to the fastening portion so as to be connected to another pipe and the end of the pipe is pressed by a pressing tool. The pressing ring of the metal material is fastened to both ends of the pipe to be pressed into the ring fitting groove grooved in the fastening portion of the joint body is pressed.

Hereinafter, described in detail preferred embodiments of the present invention by the accompanying drawings as follows.

1 is a cross-sectional view showing a separated state of the joint for the synthetic resin pipe according to the first embodiment of the present invention, Figure 2 shows the joint for the synthetic resin pipe according to the first embodiment of the present invention to the crimping tool 40 30 is a cross-sectional view showing a coupling operation state for compression bonding, and FIG. 3 is a half cross-sectional view illustrating a coupling state in which a joint for a synthetic resin pipe according to the first embodiment of the present invention is pressed against the pipe 30.

As shown in the figure, the connection between the pipe 30 and the pipe, which is required to be kept tight in the fluid and gas pipelines, can be simply press-bonded without damage to the components in one press operation instead of complicated screwing. The joint for the synthetic resin pipe, the pipe insertion groove 15 is screwed into another pipe and the fastening portion 11 of one side is inserted into the pipe 30 is inserted into the center around the pipe fixing part 14 in the recessed A joint body 10 composed of the opposite threaded portion 16, a sealing ring 25 fitted into the fastening portion 11 of the joint body to keep the connecting end of the pipe 30 airtight, and a separate crimping tool ( 40 is composed of a joint fixing ring 20 for press-fitting the pipe 30 to the fastening portion 11 of the joint body by the pressing operation.

The joint body 10 is formed by the end of the pipe (30) is inserted into the pipe fixing groove (15) concave the tube fixing groove (14) protruding in the form of a nut in the middle, so that the pipe fixing portion (14) The ring fitting grooves 12 and 13 are curved grooves in the fastening portion 11 protruding to one side so that the end of the pipe 30 inserted into the center of the pipe 30 can be pressed together with the sealing ring 25 made of rubber material. One sealing ring 25 is fitted into the ring fitting groove 12 inside the airtight means, and a tapered inclined threaded portion 16 protrudes from the other side opposite the fastening portion 11 to form another pipe. It is configured to be screwed onto.

In addition, the joint fixing ring 20 for pressing the pipe 30 to the fastening portion 11 of the joint body while being pressed together with the end of the pipe 30 by one press operation by the crimping tool 40 is in the middle. Positioning groove 21 is formed in the shape of a curved groove ring, the compression ring 22, 23 is fastened to the inner both sides, the joint fixing ring 20 and the compression ring 22, 23 is iron (Fe) Or iron (Fe) -chromium (Cr) alloy steel is formed of a metal material with excellent corrosion resistance is pressed with the end of the pipe 30 by the external pressure by the compression tool 40, the joint portion 11 of the joint body It is configured to be crimped into the corresponding ring fitting groove (12) (13) is curved groove.

In particular, the interval between the compression ring (22) and (23) fastening fixed to the inner both sides of the joint fixing ring 20 is the interval between the ring fitting groove 12, 13 grooved in the coupling portion 11 of the joint body It is configured to correspond to the position, and also one end of the pressing end portion 42 of the crimping tooth tool 40, the compression ring 22 on one side of the joint fixing ring 20 is a ring on one side of the fastening portion 11 as shown in FIG. The width is determined so that it can be accurately positioned in the fitting groove 12.

The joint for the synthetic resin pipe according to the first embodiment of the present invention configured as described above, as shown in the coupling operation state diagram of FIG. 2 and the compression coupling state diagram of FIG. 3, the joint body through one pressing operation by the compression tool 40. The end of the pipe 30 is pressed together with the joint fixing ring 20 to the fastening portion 11 of the can be pressed by the pipe 30 to the fastening portion 11 of the joint body.

That is, the sealing ring 25 of the rubber material is inserted into the inner ring fitting groove 12 of the concave groove 11 of the joint body and the pipe 30 is inserted above the end of the pipe 30. Inserted into the tube insertion groove (15) of the official government to be assembled to fix the position.

Then, the fitting ring fixing ring 20 is fastened to the end of the pipe 30 inserted into the fastening portion 11 of the joint body of the metal compression ring 22, 23, and as shown in Figure 2 One compression ring 22 of the joint fixing ring 20 which is pressed by contact by the pressing force of the pressing tool 40 is pressed by pressing one side of the joint fixing ring 20 with the pressing tooth tool 40 of FIG. As shown in FIG. 3, the corresponding end of the pipe 30 may also be pressed while being pressed into one ring fitting groove 12 of the fastening part 11 together with the sealing ring 25.

In addition, the other compression ring 23 of the joint fixing ring 20 is also pressed by the crimping tooth tool 40 so that the other end of the pipe 30 together with the compression ring 23 is fitted with the other ring of the fastening portion 11. Since it can be pressed while being pressed into the groove 13, the pipe 30 can be simply and reliably pressed in a single pressurizing operation without troublesome screwing to the fitting body 10.

On the other hand, as shown in the second embodiment of the present invention shown in Figures 4 and 5, the ring fitting groove of the joint body 10 by pressing both ends of the end of the pipe 30 in the pressing operation by the crimping tooth tool 40, respectively (12) Unlike the first embodiment described above as a compression coupling means to be coupled to the compression means can be applied as a separate structure that is fastened only by the compression ring of each metal material without the joint fixing ring.

That is, the compression rings 22 and 23 are respectively inserted into both ends of the pipe 30 inserted into the fastening portion 11 of the joint body to pressurize the ends of the pipe 30 by pressing with the crimping tool 40. It is also possible to conveniently press-fit to the fastening portion 11 of the joint body, wherein each of the compression rings 22 and 23 fastened to the outside of the pipe 30 are both ring fitting grooves 12 of the fastening portion 11. (13) should be fastened so as to correspond to the position, by the concave-convex pressurized end portion 42 of the crimping tooth tool 40, the engagement interval of these compression rings (22) and (23) is the ring fitting groove (12) (13) It can be automatically adjusted so that it can be exactly matched to the fastening interval of.

According to the joint for the synthetic resin pipe according to the present invention described above, the connection between the pipe and the pipe that is required to maintain the airtight fluid and gas pipelines can be simply press-bonded in one press operation instead of complicated screw coupling, simplifying the components In addition, the coupling operation can be facilitated as well as the effect of reducing the labor can be provided.

Claims (2)

An end portion of the pipe 30 to be inserted is fixed to the tube insertion groove 15, the conduit 14 is grooved so as to protrude in the middle of the joint body 10, the center of the tube 14 The ring fitting grooves 12 and 13 into which the sealing ring 24 of the rubber material is fitted so that the inner side of the end of the pipe 30 to be inserted are hermetically sealed are protruded to one side. , The threaded portion 16 is formed on the other side opposite the fastening portion 11 so as to be connected to another pipe, and the end of the pipe 30 is pressed by the pressing operation by the crimping tool 40. The metal fitting hole fixing ring 20 fitted to the outside of the end of the pipe 30 so as to be pressed into the ring fitting grooves 12 and 13 recessed in the fastening part 1 is positioned in the center. Curved grooves) and the compression rings 22, 23 of the metal material is fastened to both sides of the inner side Yieumgu for the synthetic resin pipe. An end portion of the pipe 30 to be inserted is fixed to the tube insertion groove 15, the conduit 14 is grooved so as to protrude in the middle of the joint body 10, the center of the tube 14 The ring fitting grooves 12 and 13 into which the sealing ring 24 of the rubber material is fitted so that the inner side of the end of the pipe 30 to be inserted are hermetically sealed are protruded to one side. In order to be connected to another pipe, the threaded portion 16 is formed on the other side opposite to the fastening portion 11, and the end of the pipe 30 is pressed by the pressing operation by the crimping tool 40 to fasten the joint body. Synthetic resin pipe, characterized in that the corresponding compression ring 22, 23 of the metal material is fastened to both ends of the pipe 30 so as to be pressed into the ring fitting grooves 12, 13 grooved in the portion (11) Dragon fittings.