KR100891590B1 - A tube joint strutcure for connecting of old-pipe - Google Patents

Abstract

A connecting pipe joint structure of a pipe which is installed on the fixed position is provided to reduce the construction period for setting up the new facility and conduit by controlling the flow of the new conduit. A connecting pipe joint structure of a pipe which is installed on the fixed position comprises: a pipe joint(10) having the female thread along the circumferential surface of the end part; and a union connection part(20) combined with the screw thread. The union connection part includes: an annular coupling cap(20b) covering both end part of the cut circumferential surface of the new conduit and old conduit; and a joint nut(20a) of the annular shape having a male thread along the inner circumference.

Description

A tube joint strutcure for connecting of old-pipe}

The present invention relates to a pipe joint structure for connecting a new pipe or an existing pipe to an existing pipe consisting of a synthetic resin pipe, and more specifically, the position is fixed according to the requirements of the installation environment as buried in the ground, It is easy to connect the new pipeline to one side of the existing pipeline where the dynamic fluctuation is completely restricted, and control the flow of the new pipeline connected to the existing pipeline to easily change the flow of fluid after the completion of the facility connected to the new pipeline. The present invention relates to a pipe joint structure for connecting a fixed fixed existing pipe line to shorten the air for installing the pipe line.

In general, PVC pipes are widely used as piping materials because of their excellent chemical resistance and corrosion resistance, and are lighter than steel pipes and cast iron pipes. Due to their corrosion resistance, they can minimize contamination of fluids passing through them. Even if it is buried, it has a semi-permanent lifespan, is easy to cut, and low in cost, making it suitable for water and sewage pipes.

In addition, the synthetic resin pipe may be configured to change the flow of the fluid by connecting or branching another synthetic resin pipe to one side, if necessary, the synthetic resin is completely limited to the movement by the external force, such as a synthetic resin pipe embedded in the ground The pipe may also be installed with other synthetic resin pipes connected or branched as necessary.

For example, referring to Figure 1, the pipe forming the sewage pipe network is sewage pipe consisting of a fume pipe or synthetic resin (PVC) pipe and a number of branch pipes connected thereto so that various sewage generated in the city can be separated and treated. It is connected to form a structure.

Then, the wastewater generated in each household is introduced into the sewage pipe via the connected branch pipes, and is sent to the sewage treatment plant according to the treatment process to be purified or discharged directly to the stream when the pollution degree is low.

However, with the development of the industry, the pollution level of wastewater generated in each household is increasing, and in order to treat this, a new sewage treatment plant facility connected with the existing sewer pipe network is being installed. The wastewater introduced into the new sewage treatment plant is purified and discharged into the stream.

As such, in order to introduce the waste water generated in the new sewage treatment plant, there is a need to change the flow of the internal fluid by connecting the new pipe line P2 to the existing pipe line P1.

The new pipe line (P2) is branched from one side (A, B) of the existing pipe line (P1) and extends to the new sewage treatment plant, it is installed to transport fluid such as waste water.

However, the branch connection (A, B) of the new pipeline (P2) and the existing pipeline (P1) in most cases, the new pipeline (P2) to be newly installed with the existing pipeline (P1) buried in the ground connected The installation is very demanding and takes a lot of work.

In other words, as the new sewage treatment plant is newly established and the new pipe line P2 is installed in a branching process from the existing pipeline P1, the new sewage treatment plant maintains the flow of the existing pipeline P1 before completion of the new sewage treatment plant. After completion of the treatment plant, the flow to the new pipeline (P2) should be changed, and for this purpose, a number of tasks such as digging again the point where the existing pipeline (P1) and the newly constructed pipeline (P2) are connected and performing post-work to change the flow. This problem arises.

In addition, since the existing pipeline (P1) is buried in the ground, the movement by external force is completely limited, so in order to connect the new pipeline (P2), not only the connection point but also other parts of the existing pipeline (P1), that is, the existing pipeline A problem arises in that earth work should be carried out to the bent portion where the movement of (P1) is possible.

As described above, referring to FIG. 2, a connection structure for connecting the new pipe line P2 to the existing pipe line P1 according to the related art is as follows.

Figure 2 (a) shows the most common method, the through-hole 101 to puncture the outer diameter of the new pipe (P2) on one side of the existing pipe (P1), the flange to the through hole 101 The connecting socket 102 is installed using a coupling member such as a bolt and a nut as necessary, and then has a structure for connecting the new connection pipe (P2) to the connecting socket 102.

However, this connection structure is not only difficult to drill the through-hole 101 and install the connecting socket 102 in the existing pipe (P1), but also provided with a packing member according to the formation of the through-hole 101 It is difficult to maintain watertight defects.

In addition, the construction work is difficult, and in order to install the leak does not occur, there was a disadvantage that a skilled worker must be connected to the joint.

Another conventional existing pipe (P1) and the new pipe (P2) as a connection method of cutting a portion of the existing pipe (P1) and there is a structure for connecting to the cut using a pipe joint (100a), Referring to Figure 2 (b) is as follows.

As an example, the T-type pipe joint 100a is illustrated, and the existing pipe P1 and the new pipe P2 are connected to the pipe joint 100a to change the flow direction of the fluid as needed.

Generally, a tube joint is a device used to join a tube and a tube, and there are various shapes depending on the type and size of the tube to be installed.

For example, screw used to connect gas pipes, elbows connected at right angles to joints, tees connected in T-shape, 90 ° Y connected in Y-shape, crosses connected in cross-shaped, U-shape Return bends and the like.

Where the center line of the pipe does not coincide, a socket and spigot joint is used, and the pipe diameter is a large flange joint is used.

However, the connection structure using the conventional pipe joint (100a) is earthwork construction only the portion for connecting the pipe joint (100a) because the existing pipeline (P1) buried in the ground is completely restricted by the external force movement In order to install the existing pipe (P1) and the new pipe (P2) a lot of difficulty occurs to fit the connection portion of the pipe joint (100a).

In other words, in the case of a pipe joint 100a having an existing connection structure, the cut portion of the existing pipe P1 is connected to the pipe joint 100a to connect the existing pipe P1, and the other end of the pipe joint 100a is connected to the pipe joint 100a. Pipe line (P1) needs a dynamic movement to connect to the pipe joint (100a). For this purpose, the existing pipeline (P1) inevitably moves to the existing pipeline (P1) to dig a point where the existing pipeline (P1) is buried up to the bent portion (a) where a joint part is formed in order to facilitate movement. It has a structure that should be connected to the pipe joint (100a).

In order to solve this problem, one end of an existing pipe line (P1) or a new pipe line (P2) is connected to one connection portion of the pipe joint (100a) using a band or a clamp, and then a connection pipe of a predetermined length to the other end ( A method of connecting and constructing 103 may be used.

In addition, the connecting pipe 103 is wound around the connecting portion by using a stainless steel or plastic band and then fixing the existing pipe (P1) and the new pipe (P2) in the connection portion using a bolt, nut and screws.

However, the fixing band has to use several pieces and it is fastened firmly, so it takes a long time, and it is difficult to separate even if fixed incorrectly after fixing it once, and the separated band has a problem of using a new one. .

In addition, in order to connect the connecting pipe (103), not only the connection point of the existing pipe (P1) but also the problem of having to cut the existing pipe (P1) to the part where the connecting pipe 103 is installed and to carry out earthwork. do.

On the other hand, referring to Figure 2 (c), in the existing pipeline (P1) in which the conventional position is fixed and dynamic movement due to external force is limited, the bent portion causes a problem or to replace the bent portion An elbow-shaped pipe joint 100b having the same shape as may be used.

However, as in the connection structure of FIG. 2 (b), since the movement of the existing pipe P1 is completely limited, the connecting pipe 103 may be used to connect the connection pipe 103 or the connection of the existing pipe P1. The same problem arises in that earthwork must be carried out to another bent portion (b) which is capable of movement.

As described above, connecting the bent portion or the new pipe line (P2) of the existing pipe (P1) as necessary to the existing pipe (P1) buried in the ground in accordance with the prior art and completely limited dynamic movement by external force In order to facilitate the connection, earthwork is required to dig the existing pipe (P1) restricted movement to the point that is easy to move, and even after the installation of the existing pipe (P1) and the new pipe (P2) and the new pipe (P2) and When the flow of the fluid needs to be changed only in the direction of the new pipe (P2) in accordance with the completion of the facility to be connected, the work of the earthwork and the change of the flow of the fluid occur again.

In addition, the construction cost is increased due to a large number of operations, and the problem such as a long construction period will inevitably occur.

The present invention has been made to solve the above-mentioned problems, it is easy to connect the new pipeline to one side of the existing pipeline is completely fixed in position according to the requirements of the installation environment, such as embedded in the ground, the dynamic shaking by external force is completely limited It is an object of the present invention to provide a pipe joint structure for connection to a fixed existing pipe having a pipe joint and a union connection.

In addition, when connecting the existing pipeline and the new pipeline can be installed by cutting only the necessary portion of the existing pipeline, and after the connection or branching of the existing pipeline and the new pipeline pipe so that the flow of fluid can be changed without the need for other work as needed It is an object of the present invention to provide a pipe joint structure for connecting a fixed existing pipe having a joint and a union connection portion.

In addition, by providing a pipe joint structure having an inlet and outlet connecting the existing pipeline or a new pipeline, and a union structure consisting of a coupling cap and a joint nut to connect the existing pipeline and the new pipeline, and also the bent portion of the existing pipeline The purpose of the present invention is to provide a pipe joint structure for connection to a fixed fixed existing pipe configured to be easily replaced.

The pipe joint structure for connecting the existing fixed position pipe according to the present invention is composed of a synthetic resin pipe and is limited to dynamic fluctuations due to external force, thereby cutting a part of the existing fixed position pipe to change or branch the flow of the fluid. In the pipe joint structure for connecting the pipe line, the T- or Y-type hollow tube having three inlet and outlet, each of the two ends of the existing pipe is connected to each other inlet and outlet, the other inlet and outlet of the new pipe An end portion communicating with the tube joint in which a female thread is formed along an outer circumferential surface of the end where three entrances and exits are formed; The cut ends of the existing pipe and the end of the new pipe line is configured to include a union connection that is connected to the inlet and outlet of the pipe joint is coupled by threaded coupling, to maintain the flow of the existing pipe or induce the flow to the new pipe To be possible; The existing pipe part is cut to a size of the pipe joint; The union connection portion is formed of an annular coupling cap which is fixed to surround both ends of the cut existing pipe and the end outer peripheral surface of the new pipe passage, and is configured to be able to move back and forth along the outer peripheral surface of the coupling cap and has a male thread formed along the inner peripheral surface. Consists of a joint nut.

In another embodiment, in the pipe joint structure consisting of a synthetic resin pipe and connected to replace and replace the bent portion of the existing fixed pipe is limited by the dynamic shaking caused by external force, bending having two inlet and outlet An elbow-shaped hollow tube body in which both ends of the existing pipes are in communication with each other and the female joint is formed along the outer circumferential surface of the two entrance ports; The cut ends of the existing pipe is configured to include a union connection is inserted into the inlet and outlet of the pipe joint is coupled by threaded coupling, it is configured to maintain the fluid flow to the existing pipe; The existing pipe is cut a portion of the bent to the size of the pipe joint; The union connection portion is formed in an annular coupling cap which wraps around the outer circumferential surface of both ends of the cut existing pipe, and is configured to be able to move back and forth along the outer circumferential surface of the coupling cap and has a male thread formed along the inner circumferential surface. It is composed.

On the other hand, the joint nut is configured to include an annular nut body with a thread formed on the inner circumferential surface, and an annular hooking protrusion extending inwardly from an end of the nut body. And, the coupling cap, while the outer peripheral surface and the inner peripheral surface of the end of the existing pipe or new pipe line is in contact with the adhesive portion, and the end of the fixing portion, while forming the nut stepped portion of the end of the fixing nut is caught by the hook While extending, the inner lower portion is configured to include a head portion formed with a tube stepped portion that is caught by the end of the existing pipe line or the new pipe line in contact with the inner peripheral surface of the fixing portion.

In addition, the head portion of the coupling cap further comprises a sealed O-ring packing member for watertightness at the front end, the head portion of the coupling cap O-ring that the O-ring packing member can be seated at the front end The groove jaw portion is further configured.

And, if necessary, the coupling cap is configured to further include an adhesive injection hole penetrated to one side of the fixing portion.

On the other hand, in another embodiment, the pipe joint is configured to further include an auxiliary pipe portion extending in the vertical direction and penetrates the point where the three inlet and outlet branches inside the hollow tube.

In this case, the pipe joint further comprises an auxiliary bulkhead of a size that can block the inlet and outlet at the branching point of the inlet and outlet so as to control the flow of fluid to the three inlet and outlet in the hollow tube body. By changing the position of the auxiliary bulkhead body through the auxiliary pipe portion may change the fluid flow to the existing pipe or new pipe.

On the other hand, if necessary, the auxiliary pipe portion of the pipe joint further comprises an opening and closing cover of a size that can cover the top.

As described above, according to the pipe joint structure of the existing fixed position pipe according to the present invention, the position is fixed in accordance with the requirements of the installation environment, such as embedded in the ground, so that the dynamic shaking by the external force is completely It is easy to connect the new pipeline to one side of the limited existing pipeline, and it controls the flow of the new pipeline connected to the existing pipeline to easily change the flow of fluid after the completion of the facility connected to the newly constructed pipeline to install new facilities and pipelines. It has the effect of shortening.

In addition, when connecting the existing pipeline and the new pipeline can be installed by cutting only the necessary portion of the existing pipeline, the connection or branch between the existing pipeline and the new pipeline by changing the position of the auxiliary bulkhead to the flow of fluid through the auxiliary pipe portion. After that it has the effect of changing the flow of fluid without the need for other work.

In addition, it is possible to easily replace the bent part of the existing pipe is completely limited dynamic shake caused by external force, and shorten the air by the pipe joint structure having a union connection consisting of a pipe joint, a coupling cap and a joint nut It leads to a reduction of construction cost.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the pipe joint structure for the connection of the existing fixed pipe according to the present invention.

3 is an exploded perspective view and a partial sectional view showing a pipe joint structure for connecting a fixed existing pipe according to a first embodiment of the present invention, Figure 4 is a position of the existing fixed pipe according to a second embodiment of the present invention 5 is a perspective view showing a pipe joint having an auxiliary pipe portion applied to the pipe joint structure, Figure 5 (a) (b) is an installation portion showing the use state of the pipe joint structure for connection to the existing fixed position according to FIG. Sectional perspective view.

As shown, the pipe joint structure 1 for the connection of the existing fixed pipe according to the present invention is required in the existing fixed pipe (P1) where the dynamic movement due to external force is completely limited as buried underground. In order to connect the new pipe line (P2) in communication with the new facility (e.g., FIG. 1, the new sewage treatment plant), the connection structure is simple and easy, so that no large-scale earthwork is required and the fluid flow is easy. Characterized in that it provides a pipe joint structure (1) for connection to a fixed existing pipe consisting of a pipe joint 10 and a union connection portion 20 to be changed.

Referring to Figure 3, the pipe joint structure 1 for the connection of the fixed position of the existing pipe according to the first embodiment of the present invention, T-type or Y to connect the existing pipe (P1) and the new pipe (P2) Tube joint 10 of the type, and the union connection portion fixed to the end of the existing pipe line (P1) or the new pipe line (P2) by the adhesive 30 or the like coupled to the inlet and outlet 11 of the pipe joint 10 ( 20).

Preferably, the existing pipe line (P1) and the new pipe line (P2) is composed of a synthetic resin pipe, the pipe joint 10 and the union connecting portion 20 to connect it is also composed of synthetic resin to increase the coupling force.

In more detail, the present invention is composed of a synthetic resin pipe and the dynamic shaking by the external force is limited to cut a portion of the fixed position of the existing pipeline (P1) and change the flow of the fluid transported in the existing pipeline (P1) or It is for connecting the new pipe (P2) to branch.

First, the pipe joint 10 is a T-shaped or Y-shaped hollow tube having three inlets and outlets 11 and two of the three inlets and outlets 11 are preferably opposed to each other depending on the installation position of the existing pipe (P1) Both ends of the existing pipe line P1 are communicated with each other through the inlet and outlet 11, and the other end of the new pipe line P2 is connected with the other outlet 11.

In addition, the union connection portion 20 is formed integrally by the adhesive 30 to the ends of the cut both ends of the existing pipe line (P1) and the new pipe line (P2), the inlet and outlet 11 of the pipe joint (10) While surrounding the coupling by connecting the existing pipe (P1) or the new pipe (P2) and pipe joints (10) by threaded coupling.

At this time, the fixed position of the existing pipeline (P1) by earthwork only limited to have a size similar to the size of the pipe joint 10 to cut a portion to the size of the pipe joint (10).

In addition, the pipe joint 10 is formed with a female thread 11a for engagement with the union connecting portion 20 along the outer peripheral surface of the end formed with three inlet and outlet 11.

And, the union connection portion 20 is an annular coupling cap 20b is fixed to wrap around the outer peripheral surface of the end of the new pipe line (P2) connected to both ends of the existing pipe (P1) and the coupling cap (20b) Wrapped around the outer circumferential surface of the coupling cap (20b) is configured to be able to move back and forth and the inner circumferential surface of the annular joint nut (20a-11) formed with a male thread (20a-11) corresponding to the female thread (11a) of the pipe joint (10) 20a).

More specifically, the coupling cap (20b) constituting the union connection portion 20, the outer circumferential surface and the inner circumferential surface of the conduit in contact with the size of the outer circumferential surface of the existing pipe (P1) or the new pipe (P2) can be wrapped And a fixing part 20b-1 coupled to the existing pipe line P1 or the new pipe line P2 by an adhesive 30 injected on the inner circumferential surface thereof, and an end of the fixing part 20b-1. Is composed of an extended head portion 20b-2.

In addition, the joint nut 20a has an annular nut body 20a-1 having a male thread 20a-11 formed on an inner circumferential surface thereof, and an annular hanger extending inward from an end of the nut body 20a-1. It is comprised including the protrusion 20a-2.

At this time, the head portion 20b-2 of the coupling cap 20b is positioned while being caught by the catching protrusion 20a-2 of the coupling nut 20a. Preferably, the head portion 20b-2 is located above the upper portion. The end of the fixing portion 20b-1 extends while forming the nut stepped portion 20b-22 to which the catching protrusion 20a-2 of the fitting nut 20a is caught, and the fixing portion 20b-1 on the inner lower portion. Tube stepped portion (20b-21) that is the end of the existing pipe line or the new pipe line in contact with the inner peripheral surface of the) is formed.

On the other hand, the coupling cap 20b is configured to further include a sealing O-ring packing member 40 for watertightness at the front end, that is, the front end of the head portion 20b-2. Preferably, the O-ring groove jaw portion 20b-23 is formed at the end of the head portion 20b-2 to allow the O-ring packing member 40 to be seated thereon.

In addition, the fixing portion (20b-1) of the coupling cap (20b) is coupled to and fixed by the adhesive (30) to the outer peripheral surface of the existing pipe (P1) or the new pipe (P2) inlet and outlet 11 is formed, preferably One end of the existing pipe (P1) or the new pipe (P2) and the connection of the pipe joint 10 is located at a suitable position and then fixed to one side of the fixing portion (20b-1) of the coupling cap (20b) It further comprises an adhesive injection hole 20b-11 penetrating the fixing part.

The connection structure to which the pipe joint structure 1 for connection to the fixed fixed existing pipe according to the present invention configured as described above is applied in detail with reference to FIG. 3.

The pipe joint structure 1 for connecting the existing fixed position pipe according to the present invention is not shown, but a part of the existing pipe P1 whose dynamic movement by external force is completely restricted by external environmental requirements such as underground embedding. It is configured to cut and connect the new pipe line (P2) and to change or branch the flow of the internal fluid, first cut a portion to connect the new pipe line (P2) in the existing pipe (P1).

At this time, the existing pipe line (P1) to be cut is cut to have the same size so that the pipe joint 10 is located, the pipe joint 10 between the both ends of the cut existing pipe (P1) Is located.

On the other hand, the pipe joint 10 is a T- or Y-shaped having three inlet and outlet 11, to the two inlet and outlet 11 preferably opposed to maintain the flow of the existing existing pipe (P1) of the straight line The existing pipe (P1) is connected, the union connection portion 20 is provided at the end of the pipe joint 10 formed with the inlet and outlet (11).

More specifically, the female thread 11a is formed at the end of the inlet and outlet 11 of the pipe joint 10 along the outer circumferential surface, and the male thread 20a- is formed on the inner circumferential surface of the joint nut 20a of the union connecting portion 20a. 11) corresponds to the female screw thread (11a), the pipe joint 10 and the union connecting portion 20 is integrally coupled by threaded coupling.

On the other hand, the fixing portion (20b-1) of the coupling cap 20b of the union connecting portion 20 is located surrounding the outer peripheral surface of the end of the existing pipe (P1) or new pipe (P2), the coupling cap (20b) On the outer circumferential surface of the fixing portion 20b-1, a joint nut 20a is positioned along the upper surface of the outer circumferential surface of the fixing portion 20b-1 so as to move forward and backward.

At this time, the fitting nut 20a is caught by the inner protrusion 20a-2 of the head 20b-2 and the nut step 20b-22 of the coupling cap 20b to prevent the separation from the outside. .

Accordingly, both ends of the existing pipe (P1), which is cut accordingly, are fitted while being caught by the coupling cap (20b) tube step portion (20b-21) of the union connection portion 20 installed on each.

At this time, the inner peripheral surface of the fixing portion (20b-1) of the coupling cap (20b) and the outer peripheral surface of the end of the existing pipe (P1) in contact with it is integrally coupled by the adhesive (30).

In this way, the end of the pipe joint 10 is located in the threaded coupling position, both ends of the existing pipe (P1) pipe step 20b-21 of the coupling cap (20b) of each union connection portion 20 When located on the side, while adjusting the position of the pipe joint 10 and the existing pipe (P1) while fully fixing the pipe joint 10 and the union connection portion 20 using threaded coupling while rotating the joint nut (20a) do.

At this time, the end of the pipe joint 10 has watertightness by the O-ring packing member 40 formed at the end of the head portion 20b-2 of the coupling cap 20b.

Meanwhile, an adhesive injection hole 20b-11 is formed at one side of the fixing portion 20b-1 of the coupling cap 20b as necessary, and the coupling cap 20b and the existing pipe P1 using the adhesive 30 are formed. ) At the time of joining the end, it is possible to first adjust the position and then inject the adhesive 30 through the adhesive injection hole 20b-11 to prevent the detachment that may occur during the bonding process. can do.

And, the new pipe line (P2) coupled to the other inlet and outlet 11 of the pipe joint 10, as described above, the pipe line by the connection structure by the union connection portion 20 and the pipe joint (10) Is connected to the existing pipeline (P1) and flow is connected.

On the other hand, the pipe joint structure (1) for connection to the fixed existing pipe according to the present invention, as shown in Figures 4 to 5 (a) (b), controls the flow of fluid inside the pipe joint 10 It has a structure that can control the flow of fluid to the existing pipe (P1) and the new pipe (P2).

To this end, the pipe joint 10 according to the present invention further comprises an auxiliary pipe part 10a extending in the vertical direction through the branch A and the branch A and the branch 11 inside the hollow tube. .

At this time, the auxiliary pipe part (10a) has a length that can protrude out of the ground surface when connecting the existing pipe (P1) and the new pipe (P2) in the state buried in the ground and finishing the earthworks After completing the connection of the existing pipe (P1) and the new pipe (P2) using the pipe joint 10 and the union connection portion 20, the fluid flow of the pipe can be changed from the outside.

In other words, the pipe joint 10 together with the auxiliary pipe section 10a at the point (A) where the inlet and outlet 11 are branched so as to control the flow of fluid to the three inlets and outlets inside the hollow tube. It further comprises an auxiliary bulkhead 12 of a size capable of blocking each entrance and exit 11.

Then, when the operator needs to change the flow of the fluid through the auxiliary pipe portion 10a of the pipe joint 10 to change the position of the auxiliary partition wall body 12.

In more detail, as shown in Figure 5 (a), to block the connection to the new pipe line (P2) and to maintain the flow of the connection of the existing pipe (P1), through the auxiliary pipe portion (10a) the auxiliary partition wall ( 12) is moved to the inlet and outlet communicating with the new pipe line (P2) to prevent fluid flow to the new pipe line (P2).

In addition, as shown in Figure 5 (b), after the completion of the facility connected to the new pipe line (P2) or to prevent the flow of the existing pipe (P1) to induce fluid to flow to the new pipe line (P2) In this case, the auxiliary bulkhead 12 is moved to one side of the inlet and outlet communicating with the existing pipe P1 through the auxiliary pipe part 10a so that the fluid flow of the existing pipe P1 is changed to the new pipe P2. To induce flow.

Then, after changing the flow of the fluid, the auxiliary pipe portion 10a of the pipe joint 10 is completely embedded, including an opening and closing cover (not shown) in the upper portion as needed.

Figure 6 is an exploded perspective view showing a pipe joint structure for connecting the existing fixed pipe according to the third embodiment of the present invention.

As shown, the pipe joint structure (1) for connection to the existing fixed position of the existing pipe according to the present invention, in the existing pipe (P1) where the position is fixed and limited dynamic movement by external force, there is a problem in the bent portion To produce or replace this portion, an elbow type tube fitting 10 'of the same shape as the bent portion is used.

More specifically, the pipe joint 10 'has a pipe joint structure 1, which is connected to replace and replace the bent portion of the existing pipeline P1, which is composed and positioned of a synthetic resin pipe. Both ends of the existing pipe P1 are communicated with each of the two outlets 11 by a bent elbow hollow tube having two outlets 11.

In addition, the both ends of the existing pipe line (P1) is cut in the inlet and outlet of the pipe joint (10 ') is formed by the union coupling portion 20 is coupled by threaded coupling, the fluid flow of the existing pipe line (P1) Configured to maintain.

On the other hand, the existing pipe line (P1) is a portion of the bent portion is cut to the size of the pipe joint (10 '), the female thread is formed along the outer peripheral surface of the end formed with two inlet and outlet 11 of the pipe joint (10') Is formed.

In addition, the union connecting portion 20 is composed of an annular coupling cap 20b and a joint nut 20a having the same configuration as in the first and second embodiments described above.

In other words, the union connection portion 20 is an annular coupling cap (20b) and the coupling cap (20b) is wrapped around the outer peripheral surface of the end of the new pipe (P2) connected to both ends of the existing pipe (P1) cut and fixed; Wrapped around the outer circumferential surface of the coupling cap (20b) is configured to be able to move forward and backward and the inner circumferential surface of the annular joint nut (20a-11) formed with a male thread (20a-11) corresponding to the female thread (11a) of the pipe joint 10 ( 20a).

In addition, the connection pipe joint structure 1 according to the third embodiment of the present invention has the same coupling structure as in the first embodiment and the second embodiment.

The present invention described above is limited to the above-described embodiment and the accompanying drawings as various substitutions and modifications can be made within a range without departing from the technical spirit of the present invention for those skilled in the art. It doesn't happen.

Figures 1 to 2 (a) (b) (c) is a view showing a connection structure of the existing pipeline fixed in accordance with the prior art.

Figure 3 is an exploded perspective view and a partial cross-sectional view showing a pipe joint structure for connecting the existing fixed pipe according to the first embodiment of the present invention.

Figure 4 is a perspective view showing a pipe joint having an auxiliary pipe portion applied to the pipe joint structure for connection to a fixed position existing pipe according to a second embodiment of the present invention.

Figure 5 (a) (b) is an installation part cross-sectional perspective view showing the use state of the pipe joint structure for connection to the existing fixed pipe according to FIG.

Figure 6 is an exploded perspective view showing a pipe joint structure for the connection of the existing fixed pipe according to the third embodiment of the present invention.

*** Explanation of symbols for main parts of drawings ***

1: Pipe joint structure for connecting fixed existing pipe

10, 10 ': pipe joint 11: inlet and outlet

11a: female thread 20: union connection

20a: joint nut 20b: coupling cap

30 adhesive 40 O-ring packing member

Claims (8)

Maintaining the flow of the existing pipe or inducing the flow to the new pipe by cutting a part of the existing pipe of the synthetic resin pipe fixed by the external force and connecting the new pipe to change or branch the flow of the fluid. In the pipe joint structure for, Part of the existing pipe is cut; The T- or Y-type hollow tube having the same size as the cut portion of the existing pipe, and the two ends of the existing pipe is connected to each of the two entrances and exits, respectively, and the new entrance to the other entrance An end portion of the conduit communicating with the female joint formed with a female thread along an outer circumferential surface of the end having three entrances and exits; The both ends of the existing pipe line and the end of the new pipe line is configured to include a union connection is fitted by the threaded coupling to the inlet and outlet of the pipe joint; The union connection portion is formed of an annular coupling cap which wraps around the outer peripheral surface of one end of the existing existing pipe and the corresponding new pipe passage and is fixed, and is configured to be able to move back and forth along the outer peripheral surface of the coupling cap and has a male screw along the inner peripheral surface. Consisting of an acid-shaped annular nut; The joint nut includes an annular nut body having a thread formed on an inner circumferential surface thereof, and an annular hooking protrusion extending inwardly from an end of the nut body. The coupling cap is fixed to the outer circumferential surface and the inner peripheral surface of the existing pipe line or the new pipe line and is joined by an adhesive, and the end of the fixing portion extends while forming a nut stepped portion caught by the fitting nut on the top It is configured to include a head portion formed in the lower end of the tube stepped portion is caught in the end of the existing pipe line or the new pipe line in contact with the inner peripheral surface of the fixed portion, The pipe joint is a point at which three inlets and outlets branch in the hollow tube and extends in a vertical direction, and a branch at which the inlet and outlet branches to control the flow of fluid from the hollow tube to three inlets and outlets. It further comprises an auxiliary pipe portion provided with an auxiliary partition wall of a size that can block the entrance and exit in the; Pipe joint structure for connecting a fixed existing pipe position, characterized in that by changing the position of the auxiliary bulkhead body through the auxiliary pipe portion can change the fluid flow to the existing pipe or new pipe. delete delete The method of claim 1, The head portion of the coupling cap further comprises a closed O-ring packing member for watertightness at the front end, The head portion of the coupling cap is a pipe fitting structure for connecting to the existing fixed pipe line, characterized in that the O-ring groove jaw portion is further configured to be seated on the front end. The method of claim 1, The coupling cap, the pipe joint structure for connecting to the existing fixed position pipe, characterized in that further comprises an adhesive injection hole penetrated to one side of the fixing portion. delete delete The method of claim 1, Auxiliary pipe portion of the pipe joint structure for connecting the existing fixed pipe line, characterized in that further comprises an opening and closing cover of a size that can cover the top.

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