KR101868756B1

KR101868756B1 - Branch pipe coupler

Info

Publication number: KR101868756B1
Application number: KR1020170168968A
Authority: KR
Inventors: 윤석일
Original assignee: 윤석일
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2018-06-18

Abstract

The present invention relates to a branch pipe coupler. With the present invention, a connection structure of a branch pipe connected to a main sewage transport pipe can be simplified and a rubber connecting pipe can be quickly, conveniently, and firmly coupled to the main pipe. The present invention includes main pipe (100) having a connection hole (110) formed therein; a coupling pipe formed of an elastic material, provided with an insertion portion (210) inserted into the connection hole and a connection support portion (230) where a seated portion (220) stepped outside the upper end of the insertion portion is seated while being supported by the upper surface of the connection hole, having a coupling hole (240) for inserting a branch pipe (500) formed at the center thereof in a penetrating manner, and having a coupling step (212) formed at the lower end of the insertion portion; a ring-shaped extension tube (300) having an inner peripheral inclined surface (310) expanding to one side and having a divided boundary surface (320), and inserted into the inside of the insertion portion through the coupling hole of the coupling pipe to be supported by the step; and a ring-shaped wedge tube (400) having an outer peripheral inclined surface (410) identical to the inner peripheral inclined surface of the ring-shaped extension tube, forcing the ring-shaped extension tube to be expanded while being inserted in a wedge form into the extension tube, and causing the insertion portion (210) of the coupling tube (200) to be forcibly brought into contact with the connection hole (110) of the main pipe (100).

Description

Branch pipe coupler

The present invention relates to a branch pipe connecting apparatus in which a connecting pipe structure of a branch pipe connected to a main pipe is greatly simplified, while a rubber pipe made of rubber is fast and simple to assemble and support the main pipe quickly.

In general, sewage pipes (hereinafter referred to as "main pipes") made of concrete or the like are buried in the ground to discharge domestic sewage, rainwater, and purified industrial wastewater (hereinafter referred to as "sewage") into a collection house or a river use. The main pipe made of concrete, etc. is connected to a branch pipe (also referred to as a branch pipe) through which sewage discharged from each home and factory is flowed.

Conventionally, a connection hole is formed at a predetermined portion of a main pipe to which a branch pipe is connected, a tip end of the branch pipe is inserted into the connection hole, and then a portion where the branch pipe is inserted is filled with cement mortar, Respectively.

However, in the conventional pipe connecting method, since the connection portion between the main pipe and the branch pipe is not accurately sealed and there is a gap, the sewage flowing along the sewer pipe leaks through the gap to pollute the periphery thereof and further, And the like. Furthermore, since the main pipe and the branch pipe are buried in the road, it is necessary to continuously receive the load impact and running vibration of the vehicle or to separate the branch pipe from the connection portion of the sewer pipe due to the crustal change, There is a problem that the sewage pipe is clogged. As described above, the leakage of sewage water leads to social problems such as road sinking, that is, sinkholes.

As a technique to overcome such a problem, there is a connection member of a main sewer pipe and a branch sewer pipe described in Patent Document 1 (Korean Patent Laid-Open Publication No. 1999-24523). The technology contents are as follows.

Figs. 1A and 1B are cross-sectional views showing a connection state between a sewer pipe and a branch pipe by the connecting member described in Patent Document 1. Fig. As shown in Figs. 1A and 1B, a conventional connecting member is a member which is formed by forcibly contracting a fixed-end tube 10 which is fitted and fixed to a branch hole 101 formed in a main sewer pipe 100, (10) is formed of a flexible material (rubber, urethane or the like) capable of reducing the outer diameter of the fixed branch pipe (10), and the branch pipe (20) And a variable stopping jaw 12 sloping inwardly at the lower end so as to be slidable between the fixed stopping jaw 11 and the variable stopping jaw 12, (Outer diameter) when inserted into the branch hole 101 so as to be sandwiched therebetween. The connecting tube 20 may have a socket portion 21 to which the branched sewer pipe 200 is connected at an upper portion and a lower portion may be formed as an insertion tube portion 22 fitted to the inner diameter of the fixed end tube 10 The lower end of the insertion tube portion 22 pushes the inner inclined surface 12A of the variable engaging jaw 12 so that the variable engaging jaw 12 is pushed outward The outer upper surface 12B of the variable stopping jaw 12 is moved toward the fixing jaw 11 to narrow the sewing pipe grooves so that the end surface 102 of the main sewer pipe 100 sandwiched therebetween, And the groove 14 is formed in the bent portion of the outer side of the variable locking jaw 12 so that the variable jaw 12 is provided with the reinforcing steel piece 30 So that the variable engagement jaw 12 is rigidly reinforced.

However, the conventional connecting member having the above-described structure has an advantage of preventing sewage leakage due to the flexible and rigid pipe member having elasticity. However, although the fixed pipe member 10 is made of a stretchable material such as rubber, There is a problem in that the variable engagement jaw can be easily unfolded and separated even by a small external force due to the engagement with the main sewer pipe depending on the engagement jaw 12, That is, conventionally, there has been proposed a sewing machine which includes a fixed stage tube body configured to surround a connection hole of a sewage pipe to prevent water leakage, a connection tube body inserted and coupled to the fixed stage tube body to connect the branch tube, It is difficult to avoid the problem that the installation cost and manufacturing cost of the product are naturally expensive.

1. KR 101999024523 A (Released April 4, 1999)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for connecting a main pipe to a main pipe, The present invention is also directed to a pipe connecting apparatus which is fast and simple to assemble and support a connection hole of a main pipe.

According to an aspect of the present invention, there is provided a branch pipe connecting apparatus comprising: a main pipe having a connecting hole; And a connection support portion which is made of a stretchable material and which is seated in a state in which the fitting portion which is fitted in the coupling hole and the mounting portion which is formed stepwise outward from the upper end of the fitting portion are supported on the upper surface of the coupling hole, A fitting groove is formed to penetrate through the fitting hole and a fitting step is formed on the inner side of the lower end of the fitting portion. A fitting concavity and convexity is formed on the outer circumferential face of the fitting portion of the fitting pipe to increase the adhesion to the connection hole of the main pipe, A tight fitting bend for tightening the tightening band is formed at the connection supporting portion of the fastening band and a tight fitting concave portion for increasing the coupling force with the branch tube is formed at the inner circumferential surface of the coupling hole at the position where the fastening band seating request is formed And the length of the fitting portion of the pipe is limited by the depth of the connection hole formed in the main pipe And a ring-shaped extension tube having a fracture interface formed on one side of the fitting part through a coupling hole of the tube, Like expansion tube body is fitted into the ring-shaped extension tube body in a wedge manner by fitting a ring-shaped extension tube body having the same outer peripheral inclined surface as the inner peripheral inclined surface, thereby forcibly expanding the boundary surface of the ring- And a ring-shaped wedge tube body which is fitted in the ring-shaped extension tube in a wedge-shaped manner is formed in the outer peripheral surface of the ring-shaped extension tube body and the ring-shaped wedge tube body, Are coupled and supported so as not to be separated from each other by mutual coupling of .

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According to the present invention, even if the pipe connecting the branch pipe to the main pipe connection hole is formed of a stretchable material such as rubber, since the pipe fitting is assembled by the wedge method using the ring-shaped extension pipe and the ring- It is very simple and quick to assemble and construct, thereby remarkably shortening the connection of the branch pipe and reducing the construction cost.

In addition, since the tube is made of the elastic material, it is possible to perform the elastic movement by the external force or the external impact, and it is possible to maintain the stable cohesion force of the branch tube.

FIGS. 1A and 1B are cross-sectional front and rear views showing the construction of a connecting member of a conventional branch sewer pipe.
2 is an exploded perspective view of a connecting device according to the present invention.
3 is an exploded cross-sectional view of a branch pipe connecting apparatus according to the present invention.
4 is an assembled sectional view of a branch pipe connecting apparatus according to the present invention.
FIG. 5 is an assembly drawing showing the assembling procedure of the ring-shaped extension tube and the ring-shaped wedge tube according to the present invention.
6 is a cross-sectional view of the ring-shaped extension tube according to the present invention before the ring-shaped wedge tube is inserted.
Fig. 7 is a plan sectional view within the line A1-A1 in Fig. 6. Fig.
8 is a cross-sectional view of the ring-shaped extension tube according to the present invention after the ring-shaped wedge tube is inserted.
9 is a plan sectional view taken along the line A2-A2 in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 9, a branch pipe connecting apparatus according to the present invention includes a main pipe 100, a ring-shaped extension pipe 300 for simply connecting and supporting the pipe 200 and the main pipe, and a ring- And a tubular body (400).

The main pipe 100 is buried in the ground to discharge various sewage or the like to a collection house or a river, and it is generally used mainly in concrete. In some cases, a synthetic resin pipe is used if necessary.

In this main pipe, a branch pipe 500 through which sewage discharged from each home and factory is connected is connected. The branch tube is generally made of a synthetic resin tube. The branch tube has a smaller diameter than the main tube.

The branch tube 500 has a connection hole 110 formed in a main pipe 100 at a position to be connected, and is connected and assembled using a separate connection member.

The pipe 200 according to the present invention is a pipe 200 connected to and fixed to a main pipe, and is made of a stretchable material such as rubber or urethane.

The complex pipe 200 includes a fitting part 210 fitted into the coupling hole 110 of the main pipe 100 and a connection supporting part 230 formed with a stepped mounting part 220 at the upper end of the fitting part A coupling hole 340 for coupling the branch pipe 500 is formed at the center thereof and a latching step 212 is formed at the lower end of the fitting portion 210.

The seating part 220 is seated on the upper surface of the connection hole of the main pipe, and the connection support part 230 is kept in a stable state without falling into the connection hole 110 through the structure of the seating part. Preferably, the seat portion is formed in a shape corresponding to the upper surface of the connection hole 110. [

The length of the fitting part 210 of the tube 200 is equal to or shorter than the depth of the coupling hole 110 of the main tube 100 so that the end of the fitting part 210 is inserted into the inside of the main tube 100 So that no foreign matter or the like due to the movement of the sewage can be caught.

The outer diameter of the fitting portion 210 may be equal to or less than the diameter of the coupling hole 110 because the fitting portion may be formed of a ring-shaped extension tube 300 and a ring-shaped wedge tube 400, So that they are pressed against each other forcibly.

The ring-shaped extension tube 300 is inserted into the fitting portion 210 through the coupling hole 240 of the tubular tube 200 and is supported on the locking step 212. The ring-shaped extension tube 300 has an inner peripheral inclined surface 310 which is expanded in one direction, and at the same time, a separation interface 320 is formed.

When the external force is applied on the basis of the dividing interface, the ring-shaped extension tube 300 is extended to extend outward.

The ring-shaped extension tube 300 is for pressing the fitting portion 210 of the tube 200, which is fitted in the coupling hole 110 of the main tube 100, by force, It is preferable to have such a degree that the fitting portion 210 can be pressed in whole or in part.

In consideration of the fact that the ring-like extension tube 300 is forcibly opened around the partition interface 320, the ring-shaped extension tube 300 may have a diameter such that its outer peripheral surface is not in close contact with the inner peripheral surface of the fitting portion 210 Do.

When the ring-shaped extension tube 300 is mounted inside the fitting portion 210 of the tube 200, the lower end of the ring-shaped extension tube 300 is caught by the engagement step 212 and is prevented from falling down. In addition, although not shown in the drawing, a locking protrusion for controlling the engagement of the upper surface of the ring-shaped extension tube 300 may be further formed inside the fitting portion 210 as needed.

The ring-shaped wedge tube 400 is forcibly inserted into the ring-shaped extension tube 300 to forcibly expand the ring-shaped extension tube. The ring-shaped wedge tube 400 has the same shape as the inner inclined surface 310 of the ring- And has an outer peripheral inclined surface 410.

The ring-shaped extension tube 300 is forced to expand around the partitioning interface 320 through the wedge connection of the ring-shaped wedge tube 400, and only the tube 200 is expanded through the extension of the ring- The fitting portion 210 of the main pipe 100 is pressed against the connection hole 110 of the main pipe 100 forcibly.

The ring-shaped wedge tube 400 is inserted into the ring-shaped extension tube 300 for forcibly expanding the ring-shaped extension tube. The ring-shaped wedge tube 400 has a size at least such that the ring- To the connection hole 110 of the main pipe 100 in a tightly pressured manner.

Preferably, the ring-shaped extension tube 300 and the ring-shaped wedge tube 400 are made of hard synthetic resin except for the soft material, since they must maintain a strong coupling force.

According to the present invention, the outer circumferential surface of the fitting part 210 of the tube 200 may further include a concave / convex part 214 for further increasing the pressing force of the connection tube 110 of the main tube 100 will be.

According to the present invention, the inclined inner circumferential surface 310 and the inclined outer circumferential surface 410 of the ring-shaped extension tube 300 and the ring-shaped wedge tube 400 are provided with a separation preventing protrusion 312 for preventing the wedge- (412) may be further formed to correspond to each other.

At this time, the detent protrusions 312 and 412 may be variously embodied such as a wavy shape as shown in the drawing, a ratchet groove and a ratchet shape. That is, the present invention is not particularly limited as long as it is configured so as to easily engage with each other and to prevent detachment.

According to the present invention, a fastening band seating request 232 for positioning and fastening the fastening band 600 can be further formed on the outer circumferential surface of the connection support part 230 of the pipe 200.

By positioning the tightening band in the tightening band seating request 232 and then tightening it, it is possible to more stably provide the engagement position of the tightening band 600 and to prevent the vertical movement of the tightening band 600, .

According to the present invention, at the inner circumferential surface of the coupling hole 340 at the position where the tightening band seating request 232 is formed, when the tightening band 600 is tightened, the tightening concave- 342 may be further formed.

According to the present invention, the adhered irregularities 214 and 342 formed on the inner circumferential surface of the fitting hole 240 of the fitting part 210 and the connection supporting part 230 of the tube 200 are formed by the ring- And may be implemented in various forms as long as it provides stable adhesion.

The connection assembly state of the on-going branch pipe connecting apparatus constructed as described above will be described. 5 to 9 may be referred to.

First, the fitting portion 210 of the tube 200 is inserted into the connection hole 110 formed in the main tube 100. At this time, the pipe 200 is seated so that the seat part 220 stably rests on the upper surface of the connection hole 110.

After the tube 200 is inserted as described above, the ring-shaped extension tube 300 and the ring-shaped wedge tube 400 can be sequentially coupled in the manner as illustrated in FIG.

As described above, the pipe 200 is inserted into the connection hole 110 formed in the main pipe 100, and then the ring-shaped extension pipe 300 is inserted through the coupling hole 240 downward. 210 until it is supported by the retaining step 212 of the retaining ring. Then, the ring-shaped extension tube 300 is fitted in a state of being supported by the engagement step, thereby preventing the ring-shaped extension tube 300 from being released to the lower side.

6 and 7, the ring-shaped extension tube 300 is inserted into the inclined inner circumferential surface 310 of the ring-shaped extension tube 300 and the inclined outer circumferential surface 310 of the ring-shaped wedge tube 400, (410) has a predetermined opening interval (P). Therefore, the ring-shaped extension tube 300 maintains the state in which the partitioning interface 320 is in contact with each other, that is, before it is opened.

In this state, the ring-shaped wedge tube 400 is forcedly inserted into the ring-shaped extension tube 300. 8 and 9, the ring-shaped wedge tube 400 is forcedly inserted into the annular widened tubular body 400 while the inclined outer circumferential surface 410 is in contact with the inclined inner circumferential surface 310 of the ring-shaped extension tubular body 300, (300) spreads outward about the divided interface (320), and at the same time, the fitting part (210) is also extended outward.

When the ring-shaped wedge tube 400 is fully pushed into the ring-shaped extension tube 300 in a wedge manner, the ring-shaped extension tube 300 is also maximally expanded, and at the same time, Is pressed against the connection hole 110 of the main pipe 100 as much as possible.

Accordingly, the tube 200 is inserted into the coupling hole 110 of the main tube 100 through the simple coupling structure of the ring-shaped wedge tube 400 in which the fitting portion 210 is wedged with respect to the ring- So as to be firmly coupled and supported.

When the coupling of the tube 200 to the coupling hole 110 of the main tube 100 is completed as described above, the coupling tube 340 penetrating the coupling support portion 230 of the complex tube is inserted into the branch tube 500 And the tubing 500 is fastened to the main pipe 100 by using the fastening band 600 inserted in the fastening band fitting tool 232. The assembling work of the branch pipe 500 is completed.

The ring-shaped wedge tube 400, which is wedged in the ring-shaped extension tube 300 to fix the fitting portion 210 of the tube 200 to the coupling hole 110 of the main tube 100, The detachment preventing protrusions 312 and 412 formed to be coupled to the outer circumferential surfaces of the inner and outer circumferential surfaces can be prevented from being separated from each other by the mutual engagement of the detent protrusions 312 and 412.

According to the present invention, even if the main pipe 100 or the branch pipe 500 is moved due to an external force or an impact due to the pipe 200 being made of a stretchable material, It is possible to prevent or at least minimize problems such as damage.

As described above, according to the present invention, since the pipe 200 connected to the branch pipe 500 is connected to the connection hole 110 of the main pipe 100 by using the ring-shaped extension pipe 300 and the ring-shaped wedge pipe 400 assembled in a wedge- It is possible to quickly and easily construct the connection and assembly of the pipe as well as to prevent or minimize the damage of the connection portion of the branch pipe due to external impact or external force by using the flexible pipe made of elastic material .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: main pipe 110: connecting hole
200: pipe 210: fitting portion
212: a locking step 214, 242:
220: seat part 230: connection support part
232: fastening band seating requirement 240: coupling ball
300: ring-shaped extension tube 310: inclined inner circumferential surface
320: separation interface 400: ring-shaped wedge tube
410: inclined outer circumferential surfaces 312, 412:
500: branch pipe 600: fastening band

Claims

A main pipe (100) having a connection hole (110) formed therein; A connecting part 210 made of a stretchable material and fitted in the connecting hole 110 and a seating part 220 formed in a stepped manner toward the upper end of the fitting part, A coupling pipe 240 for coupling the branch pipe 500 is formed at the center of the support pipe 230 and a coupling pipe 200 having a coupling step 210 formed inside the lower end of the coupling pipe 210, Tight fitting portion 214 is formed at an outer peripheral surface of the fitting portion 210 of the pipe 200 to increase the adhesion of the pipe 100 to the coupling hole 110. The pipe 200 A fastening band seating request 232 for fastening the fastening band 600 is formed at the connection supporting portion 230 of the fastening band 240. At the inner circumferential surface of the fastening band 240 at the position where the fastening band seating request 232 is formed, When the band 600 is tightened, the tight fitting concavity 242 for increasing the coupling force with the branch tube 500 And the fitting portion 210 of the pipe 200 is formed so as to have a length equal to or less than the depth of the connecting hole 110 formed in the main pipe 100 As a result,
The inner annular inclined surface 310 and the annular extension tube 300 formed with the separating interface 320 are inserted into the fitting portion 210 through the coupling hole 240 of the pipe 200, The ring-shaped extension tube body 300 is inserted into the ring-shaped extension tube body 300 in a state where the ring-shaped extension tube body 400 is hooked on the ring-shaped extension tube body 212, and the annular extension tube body 400 having the same outer peripheral inclined surface 410 as the inner- The fitting interface 210 of the tube 200 is forcefully pressed against the connection hole 110 of the main tube 100 while the partition interface 320 of the ring-like extension tube 300 is forcibly expanded, A ring-shaped wedge tube 400 inserted into the ring-shaped extension tube 300 in a wedge-like manner is inserted into the ring-shaped extension tube 300 and the inner and outer peripheral inclined surfaces 310 and 410 of the ring-shaped wedge tube 400, And are prevented from being separated from each other by mutual engagement of the prevention protrusions 312 and 412 And the branch pipe is connected to the branch pipe.

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