KR102202156B1 - Apparatus for connecting plastic pipes - Google Patents

Abstract

The present invention relates to a synthetic resin pipe connection device, the object of which is a synthetic resin pipe in which a spiral wave type synthetic resin pipe and a connection pipe are connected very simply and tightly by a fitting method, and at the same time, the watertightness of the synthetic resin pipe and the connection pipe is maintained. It is to provide a connection device.
In the present invention, the cap is coupled to the end of the synthetic resin pipe, the rubber packing tube is installed so that the cap and the outer surface of the synthetic resin pipe are in close contact, and the end of the synthetic resin pipe is connected so that the rubber packing tube is kept watertight on the inner surface of the hollow hole and adheres closely. A separation prevention block is inserted and installed through the coupling hole of the connection pipe so that it is fitted into the hollow hole of the pipe and supported by the synthetic resin pipe inserted into the hollow hole, and the connection pipe, the synthetic resin pipe, and the separation prevention block are connected. It is structured to lose.

Description

Synthetic resin pipe connection device {Apparatus for connecting plastic pipes}

The present invention relates to a synthetic resin pipe connection device, wherein a cap is installed at the end of a synthetic resin pipe made of a spiral wave, a rubber packing tube is installed on the cap, and then inserted into a hollow hole of a connection pipe to maintain watertightness. It relates to a connecting device.

In general, synthetic resin pipes made of a material such as synthetic resin or metal are used for water, sewage pipes, or wire protection pipes buried in the ground, and are shipped as standard products having a certain length, so that a plurality of pipes are connected continuously during construction at the site. It is supposed to be. This connection of synthetic resin pipes is a very difficult and difficult operation, especially when the synthetic resin pipe consists of a helical protrusion and a helical groove such as a spiral corrugated pipe or a corrugated pipe, the connection is much more difficult and takes more time than a flat pipe. Are demanding.

Conventionally, when connecting the spiral pipes to each other, a rope made of synthetic resin or other material is wrapped in a suitable length in the spiral groove concave in the outer periphery of the spiral tube, and then an adhesive is applied on the spiral tube. The method of imparting airtightness to the connection part of the connected spiral pipe was used, but this is because the sealing by the adhesive cannot be completed unless the connection between the spiral pipe and the connecting pipe is closely contacted, so leakage frequently occurs at the joint part of the pipe. There was a problem that a lot of effort and time were required for the connection work because it was caused to occur and the connection between the spiral pipe and the connection pipe was also difficult.

In addition, the connection pipe that is screwed to the outer periphery of the spiral pipe to be connected to each other is configured to be screwed with a relatively large gap, and the gap is filled with synthetic resin foam, and the spiral pipe and the connecting pipe are filled with the foam. There is some that enhances the bonding strength between the two and maintains complete airtightness, but when filling the foam in the gap, it is necessary to make a hole for injecting the foam in several places of the connecting pipe and fill the foam through it. The assembly work was cumbersome, and there was a defect that weakened the strength of the connector itself.

In addition, after abutting both ends of a plurality of spiral pipes, a sealing sheet (rubber) is wrapped around the outer circumferential surface, and a metal band is fastened to the outer circumferential surface of the sealing sheet (rubber), so that the synthetic resin pipes are connected while maintaining watertightness. Since the structure is to fasten both ends of the metal band using several bolts and nuts, the fastening work is cumbersome, and it is difficult to fasten evenly.This connection structure is that the rubber packing is spirally wound around the spiral groove. There was a problem that it was difficult to completely block the pressure water penetrating.

Registered Patent Publication Registration No. 10-1294759 (2013.08.02) Registered Patent Publication No. 10-1458394 (2014.10.30) Registered Utility Model Gazette Registration No. 20-0157905 (1999.07.07) Publication Patent Publication No. 10-2009-0008779 (2009.01.22)

It is an object of the present invention to provide a synthetic resin pipe connecting device in which a synthetic resin pipe of a spiral wave shape and a connecting pipe are connected very simply and closely by a fitting method, and at the same time, the watertightness of the synthetic resin pipe and the connecting pipe is maintained.

An object of the present invention is to provide a synthetic resin pipe connecting device capable of improving the workability of connecting the synthetic resin pipe by allowing the end of the synthetic resin pipe and the connecting pipe to be connected by a one-touch fitting method of a separation prevention block.

In the present invention, the cap is coupled to the end of the synthetic resin pipe, the rubber packing tube is installed so that the cap and the outer surface of the synthetic resin pipe are in close contact, and the end of the synthetic resin pipe is connected so that the rubber packing tube is kept watertight on the inner surface of the hollow hole and adheres closely. A separation prevention block is inserted and installed through the coupling hole of the connection pipe so that it is fitted into the hollow hole of the pipe and supported by the synthetic resin pipe inserted into the hollow hole, and the connection pipe, the synthetic resin pipe, and the separation prevention block are connected. It is structured to lose.

In the present invention, a cap is installed at the end of the synthetic resin pipe, and a rubber packing tube is installed so as to be connected to the cap and the synthetic resin pipe, and one side of the rubber packing tube is supported on the cap, so that the synthetic resin is inserted into the hollow hole of the connection pipe. When the pipe is inserted and mounted, the rubber packing tube does not slide, and through this, the watertightness between the connecting pipe and the synthetic resin pipe is improved.

The present invention consists of a structure in which the end of the synthetic resin pipe inserted into the hollow hole of the connection pipe is stacked in the order of the synthetic resin pipe, the cap, and the rubber packing tube, so that the shape of the end of the synthetic resin pipe is maintained while maintaining the inner surface of the hollow hole and There is an effect of increasing the adhesion of the rubber packing tube.

In the present invention, since the two spiral-wave type synthetic resin pipes are connected very simply and closely around the connection pipe, the inflow of foreign substances such as water or soil into the synthetic resin pipe through the connection portion is blocked.

In the present invention, since the rubber packing tube is installed by the cap, the installation work of the rubber packing tube on the outer surface of the synthetic resin tube can be made quickly and easily, and through this, there are many effects, such as improving the overall work efficiency.

1 is an exemplary view showing a coupling configuration according to the present invention
2 is an exemplary view showing the configuration according to the present invention (excluding the connector)
3 is an exemplary view showing an exploded configuration of FIG. 2
Figure 4 is a cross-sectional view showing the configuration of the cap according to the present invention
5 is an exemplary view showing a process of combining the separation prevention block according to the present invention
6 is an exemplary view showing the combined state of the separation prevention block according to the present invention
7 is another exemplary view showing the combined state of the separation prevention block according to the present invention

1 is an exemplary diagram showing a coupling configuration according to the present invention, FIG. 2 is an exemplary diagram showing a configuration according to the present invention (excluding a connector), FIG. 3 is an exemplary diagram showing an exploded configuration of FIG. Is a cross-sectional view showing the configuration of the cap according to the present invention, Figure 5 is an exemplary view showing the coupling process of the separation prevention block according to the present invention, Figure 6 is an example showing the combined state of the separation prevention block according to the present invention Figure, Figure 7 shows another exemplary view showing a combined state of the separation prevention block according to the present invention,

In the present invention, the cap 10 is coupled to the end portion 110 of the synthetic resin pipe, and the rubber packing tube 20 is installed so as to be in close contact with the outer surface of the cap 10 and the synthetic resin pipe 100, and the cap 10 and The end portion 110 of the synthetic resin pipe in which the rubber packing tube 20 is installed is inserted into the hollow hole 31 of the connection pipe 30 to be coupled to maintain watertightness, and the rubber packing tube located in the hollow hole 31 ( The separation prevention block 40 is inserted and installed through the coupling hole 32 of the connection pipe so that it is supported in contact with the synthetic resin pipe 100 where 20) is installed, so that the separation of the synthetic resin pipe 100 from the connection pipe 30 is prevented. It is supposed to be lost.

That is, the present invention in the synthetic resin pipe connecting device 80 for connecting the two synthetic resin pipes (100);

A cap 10 coupled to the end portion 110 of the synthetic resin pipe, and a rubber packing tube 20 installed so that one side is fixed to the cap 10 and the other side is in close contact with the outer surface of the synthetic resin pipe 100 , The cap 10 and the end portion 110 of the synthetic resin pipe in which the rubber packing tube 20 is installed are inserted into the hollow hole 31 from both sides, and the connection pipe 30 and the hollow hole 31 of the connection pipe To include a separation prevention block 40 that is inserted and installed through the coupling hole 32 of the connection pipe so as to be in close contact with the located synthetic resin pipe 100,

Water tightness is maintained by the close contact between the inner surface of the hollow hole 31a of the connection pipe and the rubber packing tube 20, and the separation of the synthetic resin pipe 100 within the hollow hole 31 of the connection pipe by the separation prevention block 40 This is supposed to be prevented.

The synthetic resin pipe 100 is a spiral corrugated pipe or a corrugated pipe, and the cap 10 is integrally coupled to the end portion 110 and installed. That is, the synthetic resin pipe 100 corresponds to an object to be connected. At this time, the end portion 110 means a portion inserted into the hollow hole of the connection pipe.

The cap 10 is connected to the end of the synthetic resin pipe to support the rubber packing tube 20, and has a function of intimate contact with the inner surface 31a of the hollow hole of the connection pipe.

The cap 10 is formed in a ring type, as shown in Figs. 1 to 4, the cap body 11 provided with a packing coupling groove 13 along the periphery of the outer circumferential surface, and integrally with the cap body 11 It is formed and includes a cap coupling body 12 formed with a pipe coupling groove 14 on the inner surface.

The pipe coupling groove 14 may be formed in a spiral type or a cylindrical type. That is, the pipe coupling groove 14 may be formed in a spiral type when the synthetic resin pipe to be coupled is a spiral corrugated tube, and may be formed in a cylindrical type when the synthetic resin tube is a corrugated tube.

The rubber packing tube 20 has a predetermined elasticity and is connected to the cap and the synthetic resin pipe so as to maintain watertightness with the connection pipe.

That is, the rubber packing tube 20 includes a cylindrical packing fixture 21 that is closely attached and installed while surrounding the outer circumference of the cap body of the cap, and a packing container to be inserted and supported in the packing coupling groove 13 of the cap body. It includes a supporting protrusion 23 protruding from the inner surface 21a of the body, and a packing body 22 integrally formed with the packing fixture and installed in close contact with the outer surface of the synthetic resin pipe.

The rubber packing tube 20 constructed in this way is closely attached and installed along the outer surface of the cap body 11 and the synthetic resin tube by its own elastic elastic force,

When the end portion 110 of the synthetic resin pipe is inserted into the hollow hole 31 of the connection pipe, the end portion 110 of the synthetic resin pipe without being pushed by the coupling support between the support protrusion 23 and the packing coupling groove 13 It is inserted into the hollow hole 31 together with, thereby improving watertightness.

That is, the rubber packing tube 20 is closely coupled with the support protrusion 23 into the packing coupling groove 13 of the cap body by its elastic elastic force, and the packing body 22 is closely installed on the outer surface of the synthetic resin pipe. You lose.

FIG. 2 shows a shape in which a rubber packing tube 20 is installed (covered) on a synthetic resin tube, and FIG. 3 shows a shape in which the packing body 22 of the rubber packing tube 20 is rolled. That is, the packing body 22 of the rubber packing tube is installed integrally by being covered while spreading along the outer surface of the synthetic resin tube while being rolled up like a stocking.

As shown in FIG. 1, the connection pipe 30 includes a cylindrical body 33 having a hollow hole 31, a central locking jaw 34 protruding at the center of the inner peripheral surface of the body 33, and a hollow The coupling hole 35 communicating with the hole 31 includes a coupling hole 32 provided to pass through the main body 33.

That is, the connection pipe 30 has a main body 33 in a hollow cylindrical shape, and the central locking jaw 34 protrudes along the hollow hole inner surface 31a so that it is located in the center of the hollow hole inner surface 31a. It is formed, and the coupling hole 32 having the coupling hole 35 is formed so as to be located on both sides of the main body 33 around the central locking jaw 34.

In this case, the coupling hole is formed to communicate with the hollow hole, and a stepped step 36 to which the separation prevention block 40 is coupled is formed at the end of the coupling hole.

The connection pipe configured as described above may be made of a material capable of supporting the separation prevention block 40 by the stepped portion 36, for example, the same material as the synthetic resin pipe.

The separation prevention block 40 is connected to the connection pipe 30 and the synthetic resin pipe 100 to support the synthetic resin pipe 100 from being separated from the hollow hole 31 in the connection pipe.

The separation prevention block 40 is inserted through the coupling hole 35 of the connection pipe, as shown in Figs. 1 and 5 to 7, and is provided on one side of the upper end in the inner surface 31a of the connection pipe hollow hole. The contact block 41 and the contact block 41 are integrally formed so that the contact surface 41b is in close contact with the synthetic resin pipe 100 on which the rubber packing tube 20 is installed while the locking surface 41a is in close contact. And, it includes a cover block 42 to which the end engaging jaw (42a) is engaged with the stepped portion (36) of the coupling provided in the main body 33 of the connection pipe.

At this time, the engaging surface 41a of the contact block and the end engaging projections 42a of the cover block are formed to be positioned on both sides of the separation prevention block 40, respectively, and the end engaging projections and the coupling hole of the cover block The stepped jaws are made of a structure that engages and engages with each other.

In the present invention configured as described above, the cap 10 is coupled to the end portion 110 of the synthetic resin pipe, and the rubber packing tube 20 is installed to be connected to the cap 10 and the synthetic resin pipe 100, and the cap ( 10) and the end portions 110 of the synthetic resin pipes on both sides in which the rubber packing tube 20 is installed are inserted into the hollow holes 31 at both sides of the connection pipe, respectively.

At this time, the rubber packing tube 20 is supported by the support protrusion 23 being inserted into the packing coupling groove 13 of the cap, surrounding the cap body 11 and the packing fixture 21 is closely installed, and the cap body In (11), the packing body 22 is closely installed to be connected to the end portion 110 of the synthetic resin pipe.

The synthetic resin pipe 100 is preferably installed so that the cap 10 installed at the end portion 110 is in contact with the central locking jaw 34 formed in the hollow hole 31 of the connection pipe, and the rubber packing tube 20 After installing the packing fixture so that the support protrusion 23 is inserted into the packing coupling groove 13, the packing body 22 is moved in the longitudinal direction of the synthetic resin pipe so that the end of the synthetic resin pipe is wrapped by the packing body 22. Can be installed by pulling it.

In this way, when the cap 10 and the rubber packing tube 20 are installed on the end portion 110 of the synthetic resin pipe, the synthetic resin pipe 100, the cap 10 and the rubber packing tube 20 are stacked, so that the synthetic resin Since the rubber packing tube 20 slightly protrudes than the spiral or cylindrical protrusion 101 formed on the outer surface of the tube, when the end portion 110 of the synthetic resin tube is inserted into the hollow hole 31 of the connecting tube, the hollow hole The rubber packing tube 20 is in close contact with the inner surface 31a, so that the connection pipe 30 and the synthetic resin pipe 100 are connected while maintaining watertightness.

When the synthetic resin pipes 10 are connected to both sides of the connection pipe 30 as described above, the contact support surface 41a of the block adheres to the inner surface 31a of the hollow hole of the connection pipe and the connection edge 31b of the coupling hole 35 ) A separation prevention block is inserted through the coupling hole 35 of the connection pipe so that one side is in contact, and the contact support surface 41a and the contact portion of the connection edge 31b are used as a support point, and the contact support surface 41a A force is applied to the cover block 42 so as to be in close contact with the hollow hole inner surface 31a to couple the end engaging jaws 42a of the cover block to the stepped jaws 36 of the coupling hole.

In this way, when the contact support surface 41a of the support block is in close contact with the inner surface 31a of the hollow hole, and the end engaging projections 42a of the cover block and the stepped projections 36 of the coupling holes are mutually coupled, the separation prevention block 40 ) Is a close contact block by the support of the contact support surface (41a) and the end engaging jaw (42a), the rubber packing tube (20) is installed at the end of the synthetic resin pipe (110), that is, the close contact block (41) to the spiral groove (102) ) Of the close contact surface (41b) is in close contact to prevent separation of the synthetic resin pipe (100) from the connection pipe (30).

In addition, in the present invention, a watertight member 50 is further inserted between the synthetic resin pipe 100 and the rubber packing tube 20, and the watertight member flows foreign substances and groundwater along the spiral groove 102 of the synthetic resin pipe. Prevents it from happening.

At this time, the watertight member 50 is a rubber or soft plastic material having elasticity that can be deformed to be in close contact with the spiral groove portion 102 of the synthetic resin pipe by the elastic force (tension) of the rubber packing tube 20, or Among the foaming resins, it may be made of one selected material, and preferably a watertight member made of a foamed resin material is installed.

The present invention is not limited to the specific preferred embodiments described above, and any person of ordinary skill in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications Of course, such changes will fall within the scope of the description of the claims.

(10): Cap (11): Cap body
(12): cap assembly (13): packing coupling groove
(14): pipe fitting groove (20): rubber packing tube
(21): packing fixture (21a): inner surface of packing fixture
(22): packing body (23): support protrusion
(30): Connector (31): Hollow hole
(31a): Inside of hollow hole (31b): Connecting edge
(32): coupling hole (33): main body
(34): central locking jaw (35): coupling hole
(36): stepped (40): separation prevention block
(41): contact block (41a): contact support surface
(41b): close contact surface (42): cover block
(42a): end locking jaw (100): synthetic resin pipe
(101): Spiral or cylindrical protrusion (102): Spiral groove
(110): Synthetic resin pipe end

Claims (6)

The cap 10 is coupled to the end portion 110 of the synthetic resin pipe, and a rubber packing tube 20 is installed to closely adhere to the cap 10 and the outer surface of the synthetic resin pipe 100 by its elastic elastic force, The end portion 110 of the synthetic resin pipe is fitted into the hollow hole 31 of the connection pipe 30 so that the rubber packing tube 20 is in close contact with the hollow hole inner surface 31a, and inserted into the hollow hole 31. Separation prevention block 40 is inserted and installed through the coupling hole 32 of the connection pipe so that it is supported in close contact with the synthetic resin pipe 100, the connection pipe 30 and the synthetic resin pipe 100 and the separation prevention block 40 It is connected to keep this watertight,
The cap 10 is formed in a ring type and is formed integrally with the cap body 11 and the cap body 11 provided with a packing coupling groove 13 along the periphery of the outer circumferential surface, and the pipe coupling groove 14 on the inner surface thereof. Including the formed cap assembly 12,
The rubber packing tube 20 includes a cylindrical packing fixture 21 that is tightly installed while surrounding the outer circumference of the cap body of the cap, and a packing fixture to be inserted and supported in the packing coupling groove 13 of the cap body. Including a supporting protrusion 23 protruding on the inner surface 21a and a packing body 22 integrally formed with the packing fixture and installed in close contact with the outer surface of the synthetic resin pipe,
When the end portion 110 of the synthetic resin pipe is inserted into the hollow hole 31 of the connection pipe,
The rubber packing tube 20 is supported by the coupling support between the support protrusion 23 and the packing coupling groove 13, and by the packing body 22 covered while spreading along the outer surface of the synthetic resin pipe, the end of the synthetic resin pipe without slipping. Synthetic resin pipe connection device, characterized in that configured to be inserted into the hollow hole (31) together with the part (110).
delete The method according to claim 1;
The connection pipe 30 is a cylindrical body 33 having a hollow hole 31, a central locking jaw 34 protruding at the center of the inner circumferential surface of the body 33, and a combination communicating with the hollow hole 31 Synthetic resin pipe connection device, characterized in that it comprises a coupling hole (32) provided so that the hole (35) through the body (33).
The method according to claim 1;
Separation prevention block 40, the contact surface 41b is in close contact with the synthetic resin pipe 100 in which the rubber packing tube 20 is installed while the locking surface 41a is in close contact with the inner surface 31a of the hollow hole of the connection pipe. It is formed integrally with the contact block 41, which is inserted and installed through the coupling hole 35 of the connector, and the contact block 41, and ends at the stepped portion 36 of the coupling hole provided in the main body 33 of the connector. Synthetic resin pipe connection device, characterized in that it comprises a cover block (42) to which the locking projection (42a) is engaged.
The method according to claim 1;
Synthetic resin pipe connecting device, characterized in that between the synthetic resin pipe 100 and the rubber packing tube 20, a watertight member 50 for preventing the inflow of foreign matter and groundwater along the spiral groove 102 of the synthetic resin pipe is further inserted .
The method according to claim 5;
The watertight member 50 is one of a rubber or soft plastic material or foam resin having elasticity that can be deformed to be in close contact with the spiral groove 102 of the synthetic resin pipe by the elastic force (tension) of the rubber packing tube 20. , Synthetic resin pipe connection device, characterized in that made of one selected material.

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