KR100521061B1 - The coupling apparatus for divergence of pipe - Google Patents

Abstract

The present invention relates to a connection device for a pipe branch, and more particularly, a connection pipe inserted into a branch hole of a main pipe and having a tapered portion extended outward on one side; A soft packing member mounted on an outer circumference of the connection pipe; It relates to a connection device for a pipe branch comprising a; a fastening pipe screwed with the connection pipe.

The present invention made in this way is made of a double-walled synthetic resin pipe in particular, even if the side of the branch hole to form a hollow part completely watertight main pipe and branch pipes to prevent water leakage after piping, to prevent the contamination of soil and groundwater due to leakage at the same time structure The simplicity of construction and the simplicity of construction provide the effect of shortening working time and improving working efficiency.

Description

Connecting device for pipe branch {THE COUPLING APPARATUS FOR DIVERGENCE OF PIPE}

The present invention relates to a connecting device for branching pipes, in particular, the main pipe is made of a double-walled synthetic resin pipe, even if the side of the branch hole to form a hollow part, the main pipe and the branch pipe is completely watertight to prevent leakage after the pipe, the soil and groundwater due to leakage The present invention relates to a pipe branch connection device that provides effects such as shortening of working time and improvement of work efficiency due to prevention of contamination and simplicity of construction and ease of construction.

In the conventional branch pipe connection method, after inserting a branch pipe to be connected to a perforated branch hole on the outer circumference of the main pipe, the edge of the branch hole to be joined to the outer circumferential surface of the branch pipe is welded or bonded with mortar, adhesive or cement, or the like. In addition, a separate connection socket was placed between the branch hole and the branch pipe, and the connection socket was bolted to the body of the main pipe to connect.

However, the connection method by welding or splicing or the connection method by bolting is generally unable to perform a substantially smooth operation in view of the branch pipe connection method which is usually made in a narrow place such as underground. The work efficiency is significantly reduced compared to the time, which causes problems such as maintenance work and excessive maintenance cost, and the welded part, the joint part, and the bolting part become old due to long use after piping. Significantly lowered, which causes serious environmental problems that contaminate soil, groundwater, and the like due to leakage and leakage.

In particular, when the main pipe and branch pipes are used for controlling the flow of sewage (汚水) has a problem that can cause more serious environmental pollution.

In addition, the connection method by welding or joining or the connection method by bolting is substantially work when the surface of the main pipe is not smooth, that is, when the wavy irregularities are formed on the surface such as a double wall synthetic resin pipe (DC pipe). It is difficult to perform, and even if the work is completed by investing a long time and time, the connection is broken or damaged according to the constant shock or the flow of hydraulic pressure or use time in the pipe, so that the watertightness cannot be maintained properly.

In addition, conventional steel pipes, PVC pipes, PE pipes, fume pipes, etc., even if a branched hole is drilled on the side is not a double structure, so no hollow portion is formed on the inner side of the branch hole connection member such as a connection socket such as mortar, adhesive on the outer surface ( There is no problem in watertightness even if the saddle) is fixedly attached, but double wall PE pipe, double wall PVC pipe, double wall synthetic resin pipe (DC pipe), etc., when a branch hole is drilled on the side, a hollow structure is formed on the inner side of the branch hole by a double structure.

Therefore, perfect watertightness of the exposed hollow part has become a very important problem, and even if there is no inner surface damage due to the hollow part, if the outer surface is broken, the sewage and sewage in water pipes, rainwater pipes, especially sewage pipes, sewer pipes, etc. Due to the outflow of water, problems such as soil contamination or inflow of leachate will occur.

In order to solve such problems, domestic registered utility model No. 20-0128023 (pipe branch), domestic registered utility model No. 20-0179505 (saddle joint pipe), domestic registered utility model No. 20-0261551 ( Branch pipe joint structure for water and sewage), Korean Utility Model Model No. 20-0295346 (fixture for installation of branch pipe), Korean Utility Model Model No. 20-0307725 (branch branch socket attachment device), Korean Utility Model Model No. 20-0383811 A technology such as an arc (pipe socket connection socket) and Korean Patent Publication No. 10-2005-0041596 (water and sewage branch pipe connection structure) has been proposed.

Here, the domestic registered utility model No. 20-0128023 (pipe branch), the domestic registered utility model No. 20-0179505 (saddle joint), the domestic registered utility model No. 20-0261551 (branching pipe for water and sewage) Structure), domestic registered utility model No. 20-0295346 (fixing device for branch pipe installation) is provided with a connecting member surrounding the main pipe and connected to the branch pipe by bolting the connecting member up and down, or connecting the connecting member to the body of the main pipe. It is made of a structure that connects the branch pipes by direct bolting, and the installation work is very difficult, and when the bolting ages or the ground changes after a long time after piping, the water density between the main pipe and the branch pipes decreases. There is a lot of concern that it may cause problems of water leakage and environmental pollution.

In addition, the above techniques still have a problem in that the main pipe is made of the above-described hollow part, especially when the double wall PE pipe, the double wall PVC pipe, and the double wall synthetic resin pipe (DC pipe) do not guarantee complete watertightness.

On the other hand, the domestic registered utility model No. 20-0307725 (branch branch socket attaching device), the domestic registered utility model No. 20-0383811 (pipe branch connection socket) and the Korean Patent Publication No. 10-2005-0041596 (for water and sewage) The engine connection structure) is intended to maintain the water density by placing a packing member between the main pipe and the branch pipe instead of the bolting connection method to compress the packing member by a constant external force, the domestic registered utility model No. 20-0307725 (Branch branch socket attachment device) consists of a structure in which the inner washer is bisected into two stages, and the divided inner washer is inserted into the branch hole (inlet hole) of the main pipe, and is then joined by a tension line and a bolt. In case of PE pipe, double wall PVC pipe, double wall synthetic resin pipe (DC pipe), the damage caused by the hollow part can be prevented, but the structure is complicated and work in the narrow space It is difficult, due to the nutrient portion of the inner washer, although that seal is present it is difficult to expect a complete number density was also not yet overcome the above problems by bolting bond.

In addition, the domestic registered utility model No. 20-0383811 (pipe socket connecting socket) is coupled to the engaging support hole of the engaging portion of the snap support ring having the engaging portion to engage the inside of the main pipe, and then to the tightening bolt formed on both sides It is made of a structure for pressing and supporting the snap support ring, the durability of which can withstand a constant hydraulic pressure only by a plurality of locking support portion of the snap support ring is remarkably suspected, and also the close contact damper coupled to the end of the tightening bolt main pipe Since the water density is maintained in close contact with the body, the above problems due to the bolting coupling still have not been overcome.

In addition, the Korean Patent Application Publication No. 10-2005-0041596 (water and sewage branch pipe connection structure) is provided so that the socket portion between the branch pipe and the main pipe, the socket portion is configured to be coupled by the fixing portion formed with the engaging projection and the pressing projections. However, the above-mentioned problems caused by the bolting coupling are overcome, but the locking protrusion and the pressing protrusion of the fixing unit alone may not be able to withstand a certain level of external force, that is, water pressure, and thus may be easily broken. It has serious problems.

In addition, the above-mentioned techniques only refer to the configuration and structure in which the connecting member (collectively referred to for convenience) that is placed between the main pipe and the branch pipe is connected to the main pipe to improve the water density. There is no mention of how the connection with the branch pipe has the same water density.

That is, it is obvious that the overall water density cannot be secured only by improving the water density between the main pipe and the connecting member. The above-described techniques have a problem in that the overall water density including the branch pipe cannot be secured.

Therefore, there is a need for a new pipe branch connecting device that can solve the above problems.

The present invention was created in view of the above needs, and maximizes the watertightness of the main and branch pipes to prevent environmental pollution such as soil pollution and groundwater contamination due to leakage, in particular, leakage of sewage or wastewater. An object of the present invention is to provide a connection device for pipe branching.

In addition, another object of the present invention is to provide a pipe branch connecting device that can effectively perform the pipe branch work in a short time even without a separate tool or equipment in a narrow space.

In addition, another object of the present invention is to provide a pipe branch connecting device that can ensure the watertightness of the main pipe and the connection pipe as well as the watertightness of the branch pipe.

In addition, another object of the present invention, even if the main pipe has a double structure with a wavy-shaped concave-convex portion on the surface, such as a double synthetic resin pipe (DC pipe) connection for pipe branch can secure a complete watertight without any difficulty To provide a device.

The present invention for achieving the above object is inserted into the branch hole of the main pipe, the connection pipe with a tapered portion extended outward on one side; A soft packing member mounted on an outer circumference of the connection pipe; It is characterized in that the connecting device for pipe branch characterized in that it comprises a; fastening pipe screwed with the connection pipe.

Here, the inwardly inclined surface corresponding to the tapered portion of the connecting pipe is preferably further provided on one side of the packing member.

In addition, it is more preferable that a cylindrical pressing member for crimping and supporting the packing member by screwing the connecting tube and the fastening tube is further provided between the packing member and the fastening tube.

And, the joint pipe is screwed to the other side of the connecting pipe or the fastening pipe, the branch pipe is inserted into the inner hollow portion; A soft packing member mounted on an outer circumference of the joint pipe and inserted into the branch pipe; It is even more preferred that the joint pipe is screwed with the joint fixing pipe for crimping and supporting the packing member.

Here, the outwardly inclined surface is formed on one side of the joint pipe, the inwardly inclined surface corresponding to the outwardly inclined surface is formed on one side of the packing member.

In addition, it is even more preferable that an operating lever or operating handle is further provided to smoothly perform the screw coupling on the outer circumference of the fastening tube or the joint fixing tube.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows. Of course, the scope of the present invention is not limited by the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

1 is an exploded perspective view showing an embodiment of a connecting device for a pipe branch according to the present invention, Figure 2 is a combined perspective view of Figure 1, Figure 3 is a cross-sectional view as seen from AA of Figure 2, Figure 4 5 is an enlarged perspective view showing an enlarged crimping member, and FIG. 5 is an exploded perspective view showing another embodiment of a pipe branch connecting device according to the present invention, FIG. 6 is a combined perspective view of FIG. 5, and FIG. 7 is viewed from BB of FIG. 5. 8 is an enlarged perspective view showing an enlarged crimping member of FIG. 6, FIG. 9 is a perspective view showing another embodiment of the crimping member according to the present invention, and FIGS. 10A to 10C are different from the packing member according to the present invention. A perspective view showing an embodiment.

First, the pipe connecting device for branching is largely composed of a part for securing the watertightness of the branch hole 11 of the main pipe 10 and a part for securing the watertightness of the branch pipe 100.

That is, in order to secure the watertightness of the branch hole 11 of the main pipe 10, the pipe connecting device for the branch is inserted into the branch hole 11 of the main pipe 10 as shown in Figs. And a packing member 210 mounted on an outer circumference of the connection pipe 200, and a coupling pipe 230 screwed with the connection pipe 200.

Specifically, the connection pipe 200 is inserted into the branch hole 11 perforated on the outer circumference of the main pipe 10, the tapered portion 201 is extended to a predetermined angle outward at the end of the insertion portion.

In addition, a predetermined male screw portion 203 is provided on the outer circumference of the connecting pipe 200 as shown in FIGS. 1 and 5.

Here, the outer diameter of the connection pipe 200 is reduced compared to the inner diameter of the branch hole 11, the outer diameter of the tapered portion 201 provided at one end of the connection pipe 200 is also of the branch hole (11) It is reduced in size compared to the inner diameter.

As such, the maximum diameter of the tapered portion 201 as well as the connection pipe 200 must be reduced in size compared to the internal diameter of the branch hole 11 so that the connection pipe 200 can be inserted into the branch hole 11 without difficulty. Because there is.

However, the maximum outer diameter of the tapered portion 201 should be reduced to a slight difference from the inner diameter of the branch hole (11).

In addition, the flexible packing member 210 is made of a material having a predetermined elastic force and durability, preferably made of an annular rubber ring.

The packing member 210 configured as described above is mounted on the outer circumference of the connecting pipe 200 as shown in FIG. 1, 3, 5, or 7.

The packing member 210 mounted on the outer circumference of the connecting pipe 200 is crimped and supported by the fastening pipe 230 that is screwed to the connecting pipe 200, so that the taper portion 201 of the connecting pipe 200 is supported. Stepped out).

That is, an inner threaded portion 231 corresponding to the male threaded portion 203 provided on the outer circumference of the connecting pipe 200 is provided on the inner circumference of the fastening pipe 230, so that the fastening pipe 230 and the connecting pipe are provided. The lower end portion of the fastening tube 230 is compressed to the taper portion 201 of the connecting tube 200 by screwing, that is, tightening coupling 200.

As described above, the packing member 210 compressed into the taper 201 of the connection pipe 200 has an inner surface of the branch hole 11 of the main pipe 10 and the taper part 201 of the connection pipe 200. In this case, the connection member is not detached from the branch hole 11, and no physical deformation, breakage, or damage occurs even when a predetermined impact such as a change in the ground is applied.

Therefore, the connection pipe 200 is easily coupled to the branch hole 11 and at the same time to secure the watertightness of the branch hole (11).

In addition, the hollow part 13 generated when the main pipe 10 has a double structure is also completely sealed off by the packing member 210 as shown in FIGS. 3 and 7. Harm caused by occurrence can be prevented.

Meanwhile, the specific shape of the packing member 210 may be configured to have a simple annular shape or to have a predetermined inwardly inclined surface 211 as shown in FIGS. 10A to 10C.

Preferably, it is preferable to have a predetermined inwardly inclined surface 211 as shown in Figs. 10b and 10c rather than a simple annular shape as shown in Figure 10a.

That is, the inwardly inclined surface 211 is preferably provided on one side of the packing member 210 so as to correspond to the tapered portion 201 of the connection pipe 200.

As such, by further providing an inwardly inclined surface 211 on one side of the packing member 210, the packing member 210 is tapered by the pressing force of the fastening pipe 230, and thus the tapered portion 201 of the connection pipe 200. In order to be pushed to, the inner surface of the branch hole (11) is to be smoothly inserted without undue friction or load to maximize the watertightness.

On the other hand, as shown in Figures 1 and 5 it is preferable to place a separate pressing member 250 between the connecting pipe 200 and the fastening pipe 230.

Here, the pressing member 250 is formed in an annular shape, the lower end portion is configured to have a width enough to apply a predetermined force to the packing member 210 by sufficiently compressing the packing member 210. desirable.

Specifically, the pressing member 250 is provided with a predetermined pressing protrusion 251 on the inner circumference as shown in Figure 4 so that the lower end of the pressing protrusion 251 in contact with the packing member 210, The upper end of the pressing protrusion 251 may be configured to contact the lower end of the fastening pipe 230 when the fastening pipe 230 and the connection pipe 200 is screwed.

In addition, the pressing member 250 is provided with a predetermined pressing protrusion 251 on the outer circumference as shown in FIG. 8 so that the lower end of the pressing protrusion 251 is in contact with the packing member 210, and the pressing The upper end of the member 250 may be configured to contact the lower end of the fastening pipe 230 when screwing the fastening pipe 230 and the connection pipe 200.

Of course, the pressing member 250 is not limited thereto, and as shown in FIG. 9, the pressing member 250 may be formed in a simple cylindrical shape without forming the pressing protrusion 251. In this case, the lower end of the cylinder is in contact with the packing member 210, and the upper end is in contact with the lower end of the fastening pipe 230 when screwing the fastening pipe 230 and the connecting pipe 200.

Thus, by placing the crimping member 250 configured as described above between the fastening pipe 230 and the connecting pipe 200, when the fastening pipe 230 and the connecting pipe 200 are screwed together, The lower end of the fastening tube 230 applies a predetermined pressing force to the pressing member 250, the pressing member 250 is interlocked by the pressing force to apply a pressing force to the packing member 210 to secure watertightness. At the same time, since the pressing member 250 performs a kind of washer role, more improved watertightness can be obtained.

On the other hand, in order to ensure the watertightness of the branch pipe 100, the pipe connecting device for branching is screwed to the other side of the connecting pipe 200 or the fastening pipe 230, as shown in Figure 1 and 5, A joint pipe 310 into which the branch pipe 100 is inserted into the hollow part, a packing member 390 mounted on the outer circumference of the joint pipe 310, and a joint fixing pipe 330 screwed to the joint pipe 310. )

Specifically, the branch pipe 100 is inserted into the inner hollow portion of the fitting pipe 310, the male screw portion 203 of the connecting pipe 200 or on the inner circumference or the outer circumference of the fitting pipe 310 or A screw portion that is screwed with the female screw portion 231 of the fastening pipe 230 is formed.

That is, a female screw portion 313 or a male screw portion 311 may be selectively formed depending on whether the screw portion of the fitting pipe 310 is screwed to the connecting pipe 200 or screwed to the fastening pipe 230. have.

More specifically, when the joint pipe 310 is screwed to the male screw portion 203 of the connecting pipe 200, as shown in Figures 1 to 3, the inner peripheral lower end of the joint pipe 310 The female thread part 313 corresponding to the male thread part 203 and the male thread part 311 corresponding to the female thread part 333 of the joint fixing pipe 330 are provided at the upper end of the outer circumference of the joint pipe 310. .

In addition, the length of the fastening pipe 230 is preferably formed to be relatively reduced so that the joint pipe 310 can be directly connected to the connection pipe (200).

On the other hand, when the fitting pipe 310 is screwed to the female screw portion 231 of the fastening pipe 230, as shown in Figures 5 to 7 the outer threaded portion of the female screw portion 310 231 and a male screw portion 311 corresponding to the female screw portion 333 of the joint fixing tube 330 are provided.

At this time, the length of the fastening pipe 230 is preferably formed to be relatively extended so that the joint pipe 310 can be connected to the fastening pipe 230.

In addition, a soft packing member 390 is mounted on the outer circumference of the fitting pipe 310, that is, the upper outer circumferential surface thereof. Here, the packing member 390 is preferably made of a rubber ring having a predetermined elastic force and durability as described above.

In addition, the joint fixing tube 330 is preferably provided with the joint fixing tube 330 so as to support the compressive support of the packing member 390.

Here, the joint fixing pipe 330 is provided with a female screw portion 333 on the inner circumference thereof so as to be screwed with the male screw portion 311 provided on the outer circumference of the fitting pipe 310, by the screw coupling A locking jaw 335 as shown in FIG. 1, 2, 5, or 6 is provided at an upper end thereof to support the packing member 390.

Meanwhile, the compressive force is further provided by providing an outwardly inclined surface 315 on one side of the fitting pipe 310 and further providing an inwardly inclined surface 391 corresponding to the outwardly inclined surface 315 on one side of the packing member 390. To improve the watertightness of the branch pipe 100 can be maximized.

Of course, the specific shape of the packing member 390 is not necessarily limited thereto, and the packing member 390 may be variously configured as described above according to the shape of the fitting tube 310.

In addition, it is preferable to further include an operating lever 350 or an operating handle to smoothly perform the screw coupling on the outer circumference of the fastening pipe 230 or the joint fixing pipe 330.

That is, as shown in Figures 1 and 5 by forming a plurality of operating lever 350 on the outer periphery of the fastening pipe 230 and the joint fixing pipe 330, a separate tool when connecting the branch pipe 100 B, it is possible to easily perform the operation by artificially rotating the operating lever 350 without equipment.

Of course, in order to maximize the watertightness of the branch hole 11, as shown in FIGS. 1 and 5, a separate washer 370 may be placed between the packing member 390 and the joint fixing tube 330.

The present invention configured as described above provides the following effects.

First, the tapered portion is extended outwardly on one side of the connecting pipe inserted into the branch hole of the main pipe, by tightly supporting the packing member between the outer peripheral surface of the tapered portion and the inner peripheral surface of the branch hole by screwing the fastening tube, The main pipe and the connecting pipe are easily watertight even in one space, and the double structure of the main pipe is completely watertight even when the main pipe is made of a double wall PE pipe, a double wall PVC pipe, and a double wall synthetic resin pipe (DC pipe). It provides the effect.

Second, by forming an inwardly inclined surface corresponding to the tapered portion of the connecting tube on one side of the packing member, the packing member can be compressed between the tapered portion and the branch hole without straining the packing member. do.

Third, by providing a separate pressing member between the connecting pipe and the fastening tube to support the packing member, the packing member and the main pipe and the connecting pipe by the support force of the pressing member Provides the effect of maximizing water tightness.

Fourth, the branch pipe is inserted therein, the joint pipe is screwed with the other side of the fastening pipe, the soft packing member mounted on the outer periphery of the joint pipe, and the packing member is crimped by screwing the joint pipe By further supporting the joint fixing tube, it is possible to completely seal the connecting pipe to the main pipe and at the same time provide the effect of completely sealing the branch pipe to the main pipe.

Fifth, by forming an outwardly inclined surface on one side of the joint pipe, and an inwardly inclined surface corresponding to the outwardly inclined surface on one side of the packing member, it provides an effect of ensuring the complete watertightness between the joint pipe and the branch pipe. .

Sixth, by further provided with an operating lever or operation handle to smoothly perform the screw coupling on the outer circumference of the fastening pipe or the joint fixing pipe, it is possible to perform the work simply without requiring a separate tool or equipment, To improve the quality of work, reduce working time, and reduce working costs.

In addition, the present invention is not limited to what has been described above and illustrated in the drawings, and of course, more modifications and variations are possible within the scope of the following claims.

1 is an exploded perspective view showing an embodiment of a connecting device for pipe branch according to the present invention,

2 is a perspective view of the combination of FIG.

3 is a cross-sectional view seen from A-A of FIG.

4 is an enlarged perspective view illustrating an enlarged crimping member of FIG. 1;

5 is an exploded perspective view showing another embodiment of a connecting device for pipe branch according to the present invention,

6 is a perspective view of the combination of FIG.

FIG. 7 is a sectional view seen from B-B of FIG. 5,

8 is an enlarged perspective view illustrating an enlarged crimping member of FIG. 6;

9 is a perspective view showing another embodiment of the crimping member according to the present invention;

10a to 10c is a perspective view showing another embodiment of the packing member according to the present invention.

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

10; Main pipe, 11; Bifurcation,

100; Branch, 200; Connector,

201; Tapered portion, 203,311; Male Thread,

210,390; Packing members, 211,391; Inward Slope,

230; Fasteners, 231,313,333; Female Thread,

250; A pressing member, 251; Pressing Stone,

310; Seam, 315; Outward Slope,

330; Joint tube, 335; Jaw,

350; Operating lever, 370; washer.

Claims (6)

A connection pipe inserted into a branch hole of the main pipe and having a tapered portion extended outwardly on one side thereof; A soft packing member mounted on an outer circumference of the connection pipe; Connection device for a pipe branch comprising a; a fastening pipe screwed with the connection pipe. The method of claim 1, And an inwardly inclined surface corresponding to the tapered portion of the connecting pipe is further provided on one side of the packing member. The method according to claim 1 or 2, And a cylindrical crimping member for crimping and supporting the packing member by screwing the connecting tube and the fastening tube is further provided between the packing member and the fastening tube. The method of claim 1, A joint pipe screwed to the other side of the connection pipe or the fastening pipe and having a branch pipe inserted into an inner hollow part; A soft packing member mounted on an outer circumference of the joint pipe and inserted into the branch pipe; And a joint fixing pipe which is screwed to the joint pipe and supports the packing member by crimping. The method of claim 4, wherein An outwardly inclined surface is formed on one side of the joint pipe, and an inwardly inclined surface corresponding to the outwardly inclined surface is formed on one side of the packing member. The method according to any one of claims 1, 2, 4 or 5, Connection device for a pipe branch, characterized in that further provided with an operating lever or operation handle to smoothly perform the screw coupling on the outer circumference of the fastening pipe or the joint fixing pipe.