KR100952726B1 - Water pipe for water tight connection - Google Patents

Abstract

PURPOSE: A watertight water supply/drainage pipe is provided to improve strong joint force of a fastening bolt by forming a reinforcing ring of strong materials. CONSTITUTION: A watertight water supply/drainage pipe comprises a head(10), a pressing wheel(20), first-third guides(41,42,43), and a first and a second rubber ring(44,45). The head a watertight groove and a combining protruded portion(11). A stopper(30) is located on one side of an assembly bore of the watertight groove. The pressing wheel has comprises a protruded press sill(22), a through-hole(21), and a base hole(23). The protruded press sill presses the stopper. A joint bolt(50) is fixed by the nut through a joint hole. The first, the second, the third guide are installed on one side of the stopper. The first rubber ring is installed between the first and the second guide. The second rubber ring is installed between the second and the third guide.

Description

Water pipe for water tight connection {Water pipe for water tight connection}

The present invention relates to a watertight and sewage pipe for watertight connection, and more specifically, the water and sewage pipe connecting from the head is assembled and connected by a stopper that is divided so that watertight is maintained when connecting with a fastening bolt and a nut by a pressure wheel. The present invention relates to a water and sewage pipe for watertight connection that allows watertight to be stably maintained through guides and rubber rings coupled to outer diameters.

Patent Registration No. 0125616 (registered on Jan. 8, 1997), which is a type of conventional water pipe, inserts a synthetic resin pipe for water supply into a mold composed of inner and outer molds, and then puts the synthetic resin between the space parts of the inner and outer molds. It is easy to join because the injection molding is used to form the pipe integrally, and the pipe and the fastening joint are integrally joined.

However, since the preformed pipe cannot be held closely, the extrusion pressure during the molding causes the pipe to be twisted or pushed back to one side, causing the pipe to be twisted or pushed back at the position of the pipe first fixed to the mold. Because the molding is made differently at the position of the pipe fixed to the mold, there is a defect that cannot be molded to the desired length, and the molding resin is molded in a distorted state, resulting in poor molding.

Patent registration No. 0416408 (registered on Jan. 14, 2004), when the synthetic resin pipe is fitted to the outside of the center mold and the inner mold, is fixed to the inner molding space while holding the pipe firmly so as not to push the pipe. Synthetic resin was supplied to the connector to one side of the pre-fixed synthetic resin tube to be molded integrally so that the pipe can be easily connected.

However, since the external diameter is smoothly extruded, the resin is inserted into the mold and the molten resin is supplied to the outside to be connected in one piece. Therefore, the connection state is not strong, so that water pressure is generated or the connection head is separated by external earth pressure. Will occur.

In addition, since the phenomenon in which the water pressure is temporarily generated after the pipe is fastened does not repeat constantly, and occurs irregularly, the fastening bolt 50 is caused by the water pressure (vibration) suddenly generated at the connecting portion of the pressure wheel 20 and the head 10. Vibration is transmitted to the nut 52, which causes the nut to loosen, resulting in a weakening of the tightening force, resulting in leakage.

And the head protruding portion 51 of the fastening bolt 50 maintains the form protruding to the outside, and after the fastening force acts to the outside to press the outside of the fastening hole, so as to collide with the outside of the thinly formed fastening hole There was a defect that the pressure wheel was broken.

On the other hand, the push wheel 20 has the drawback of increasing the consumption of the raw material because it is formed by supplying the raw material to the circumferential direction and the entire surface of the upper side, the cost is increased because the raw material is consumed a lot, the weight is to be used for large diameter pipe Heavy, many difficulties arise in movement, storage and installation.

In addition, the triangular rubber ring 40 installed in the watertight groove 12 of the head 10 has a ring-shaped protrusion formed on the pressing wheel 20 to press the upper side of the packing to fix the packing groove. Since a uniform pressing does not work on the side and the lower side formed to be inclined, a defect occurs that can not prevent leakage effectively.

In addition, the water supply and drainage pipe 17 is a pressure generated when supplying tap water or sewage from the inside, triangular rubber ring 40 by contraction or expansion and deformation through the change of the coefficient of thermal expansion according to the earth pressure or temperature applied from the outside There was a drawback of leaks due to the inability to keep watertight normally.

Patent registration number 0125616 (registered on Jan. 8, 1997) Patent Registration No. 0416408 (January 14, 2004 Registration) Patent Registration No. 09202886 (registered for 2009. 06. 08.) Patent registration number 0396212 (registered on Aug. 18, 2003) Patent registration number 0897606 (registered May 05, 2009) Patent registration number 0921990 (October 08, 2009 registration)

Therefore, the present invention has been devised to solve this conventional drawback, the stopper for maintaining the watertight by pressing the rubber ring by the pressing projection jaw of the pressure ring can be divided into several equal parts to provide a stable coupling force in the outer diameter of the water supply and sewage pipe. The purpose is to make it work.

An object of the present invention is to insert a plurality of guides and rubber rings into the outer diameter of the tip portion of the water and sewage pipe inserted into the head to be coupled to each other by the clamping force of the pressure wheel to block the watertight in multiple stages.

The present invention is connected to the water supply and sewage connection pipe on one side and the watertight groove in which the stopper is located and the head forming a coupling protrusion on the outside to one side of the inner diameter of the assembly inner diameter, the pressing projection jaw pressing the stopper and the through hole in the center In the water supply and sewage pipe which is formed and the pressure projection is fixed to the nut in the fastening hole through which the fastening bolt through which the head projection is caught on the engaging projection,

One side of the stopper is installed with a first guide and a second guide and a third guide for coupling to the end of the water supply and sewage pipe, a first rubber ring is installed between the first guide and the second guide and the second guide and The second rubber ring is provided between the third guides.

The present invention is to provide a stable coupling force in the fastening groove through the screw hole and the hole in the outer diameter of the water and sewage pipe is divided into several equal parts by the stopper for holding the rubber ring by pressing the pressing projection jaw of the pressing ring will be.

The present invention inserts a plurality of guides and rubber rings into the outer diameter of the top and bottom water pipes inserted into the inside of the head and is coupled to each other by the clamping force of the pressure wheel and the head while pressing the rubber rings between the guides in the assembly inner diameter of the water and sewage pipes and the head. By allowing the watertight to be blocked in multiple stages, it is possible to maintain the watertight completely.

The present invention is to provide a tightening force by the fastening bolt is strongly provided by the tightening bolts by assembling and reinforcing the reinforcing ring integrally combined with the head at the portion where the fastening bolt head projection of the head is coupled, so that the head is not damaged by the fastening force will be.

1 is an exploded perspective view showing a preferred embodiment of the present invention
2 is a cross-sectional view showing a separation state of the present invention
Figure 3 is a cross-sectional view showing the assembled state of the present invention
Figure 4 is a perspective view of the rubber ring and guide, the stopper is coupled to the water and sewage pipe of the present invention
Figure 5 is a cross-sectional view of the rubber ring and guide, the stopper is coupled to the water and sewage pipe of the present invention
6 is an exploded perspective view of the stopper of the present invention;
Figure 7 is a partial cross-sectional view of the separated state for the stopper of the present invention
8 is a partial cross-sectional view of the coupling love for the stopper of the present invention;
9 is an enlarged cross-sectional view of a major part of the invention.
10 is a cross-sectional view of the separated state for the guide and the rubber ring of the present invention
11 is a cross-sectional view of the coupling state of the guide and the rubber ring of the present invention
12 is an enlarged cross-sectional view of another embodiment of the main part of the present invention.
13 is an exploded view of another embodiment of the stopper of the present invention;
14 is an assembled state of another embodiment of the stopper of the present invention;

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

1 is an exploded perspective view showing a preferred embodiment of the present invention, Figure 2 is a cross-sectional view showing a separated state of the present invention, Figure 3 is a cross-sectional view showing an assembled state of the present invention.

The head 10 is molded by injection in a mold, and the mold is insert injection molded in the state of supplying a water and sewage connection pipe 14 formed in advance, or the spin welding and butt fusion method after the head 10 is injected. It is to be used to connect to be integrated through.

The head 10 has an inner diameter 13 to the upper and lower water pipes 17 is coupled to the inner diameter, and forms a watertight groove 12 in which the stopper 30 is located outside the inner diameter 13 of the assembly, The outer side of the watertight groove 12 is to form a coupling projection (11).

One side of the head 10 is a pressure ring 20 is coupled, the pressure ring 10 is a fastening hole 23 is formed at a predetermined interval, the through hole 21 through which the water and sewage pipe 17 is penetrated in the center. It is formed, the inside of the through-hole 21, the pressing projection jaw 22 is protruded to provide a pressure by pressing the stopper (30).

The fastening bolt 50 penetrates through the fastening hole 23 of the pressure ring 20, and the fastening bolt 60 has a head protrusion 51 formed on one side thereof, and a screw is formed on the opposite side thereof. 51 is to be engaged with the engaging projection 11, the fastening bolt 50 is to pass through the fastening hole 23 of the pressure wheel 20 to be fixed with a nut (52).

The water and sewage pipe 17 coupled to the assembly inner diameter 13 has a stopper 30, a first guide 41, a first rubber ring 44, a second guide 42 and a second rubber ring 45 from the innermost side. ) And the third guide 43.

Figure 4 is a perspective view of the rubber ring and guide, the stopper is coupled to the water and sewage pipe of the present invention, Figure 5 is a cross-sectional view of the rubber ring and guide, stopper is coupled to the water and sewage pipe of the present invention, Figure 6 is the present invention An exploded perspective view of the stopper of FIG. 7 is a partial cross-sectional view of the separated state of the stopper of the present invention, and FIG. 8 is a partial cross-sectional view of the engaged state of the stopper of the present invention.

The stopper 30 is divided into two parts, and is formed in an inner diameter in a concave-convex shape, such as a threaded portion 31, and is fixed to the outer diameter of the water and sewage pipe 17. The divided cutting surface 32 has a screw hole 33 on one side. The opposite side formed and facing the hole 35 is formed to be fastened by the bolt 36, one side of the hole 35 is to form a fastening groove 34.

The stopper 30 has a wide portion where the pressing projection jaw 22 meets, and the outer side is formed in a triangle toward the inside.

One side of the stopper 30, the first guide 41 and the first rubber ring 44, the second guide 42, the second rubber ring 45 and the third guide 43 in succession of the water and sewage pipe ( 17, but the first and second guides 41 and 42 have the same width, and the third guide 43 is preferably formed longer than the width of the first and second guides 41 and 42. Do.

Figure 9 is an enlarged cross-sectional view of the main part of the present invention, Figure 10 is a separated state cross-sectional view of the guide and the rubber ring of the present invention, Figure 11 is a cross-sectional view of the combined state of the guide and the rubber ring of the present invention, Figure 12 An enlarged cross-sectional view of another embodiment of the main part of the invention.

When the head 10 and the pressure ring 20 are fastened with the fastening bolt 50, the pressing protrusion jaw 22 presses the stopper 30 to fix the stopper 30, and the stopper 30 fixes the first guide 41 to the watertight groove. Pressed at the end of the (12), and fixed to the inner diameter 13, the first guide 41 and the first rubber ring 44, the second guide 42, the second rubber by the outer diameter of the water and sewage pipe 17 The ring 45 and the third guide 43 are coupled in turn.

The rubber ring groove 46 is formed in a semicircular shape between the first guide 41 and the second guide 42 and the second guide 42 and the third guide 43 to form the first and second rubber rings 44. , 45) is preferably molded so as to be wrapped around the fixing.

The coupling protrusion 11 of the head 10 is not formed of a single material, but forms a ring coupling jaw 15 having a " " shape on one side of the coupling protrusion 11 to form a head on the ring coupling jaw 15. Combination of the reinforcement ring 16 of the "" "type made of a material stronger than the material of (10) is configured so that the head protrusion 51 is located.

The head protruding portion 51 is preferably formed of a stronger FRP, synthetic resin reinforcing fibers, and metal materials than synthetic resin which is a material of the head 10.

Figure 13 is a separated state diagram of another embodiment of the stopper of the present invention, Figure 14 shows an assembled state diagram of another embodiment of the stopper of the present invention.

The stopper 30 can be divided into two parts, as shown in Figs. 6 to 7, but when the water and sewage pipe 17 is large, the stopper 30 is preferably divided into three parts, and the stopper 30 can be divided into three at the outer diameter of the water and sewage pipe 17. Butting the equal cut surface 32 is coupled to the bolt 36 in the hole 35 in the fastening groove 34 to be screwed in the screw hole 33.

The present invention having such a configuration is supplied to the water and sewage connection pipe 14 to the mold by injection molding to be integral with the head 10, or by injection molding the head 10 and spin welding or butt welding with the water and sewage connection pipe 14 It's a way of connecting them together using a law.

As such, the present invention allows the end of the water and sewage pipe 17 to protrude through the through hole 21 of the pressure ring 20, and shows the cut surface 32 of the stopper 30 divided into the protruding portion. As shown in FIG. 7, when the bolt 36 is inserted into the hole 35 in the fastening groove 34 and screwed to the screw hole 33, the screw portion of the inner diameter is wrapped while surrounding the outer diameter of the water and sewage pipe 17 as shown in FIG. 8. Providing a firm fixed state so that 31 does not bite the water and sewage pipe 17.

On one side of the stopper 30, the first guide 41 and the first rubber ring 44, the second guide 42, the second rubber ring 45, and the third guide 43 are sequentially inserted. Combine as shown in 5.

4 and 5 insert the water and sewage pipe 17 in the state as shown in the assembly inner diameter 13 and hook the head protrusion 51 of the fastening bolt 50 to the inner side of the coupling protrusion 11, Through the fastening hole 23 of the 20) is coupled to the nut 52 and assembled in the state as shown in FIG.

When tightening the nut 52 coupled to the fastening bolt 50, the pressing projection jaw 22 of the pressing wheel 20 presses the stopper 30, and the stopper 30 moves the water and sewage pipe 17 to the left side of the drawing. The first guide 41 is pressed while moving to.

In addition, at the inner diameter of the assembly inner diameter 13 by the tightening force of the fastening bolt 50 and the nut 52, the first rubber ring 44 is pressed between the first guide 41 and the second guide 42 to the head 10. To keep the watertight primary between the water and sewage pipe 17,

Since the second rubber ring 45 is pressed between the second guide 42 and the third guide 43, the watertight and sewage pipes are coupled so that the watertightness is secondarily maintained between the head 10 and the water and sewage pipe 17. In the outer diameter of (17) it is to provide a bonding force so that the watertight can be stably maintained in multiple stages sequentially.

The first rubber ring 44 is fixed between the first guide 41 and the second guide 42, and the second rubber ring 45 is between the second guide 42 and the third guide 43. The rubber ring groove 46 for fixing) is formed in a semi-circular shape so as to be in close contact with the first and second rubber rings 44 and 45 to maintain watertightness, and the rubber ring groove 46 The first and second rubber rings 44 and 45 protrude to both sides to maintain the watertight between the assembly inner diameter 13 and the water and sewage pipe 17 more stably.

The stopper 30 provides a stable and strong coupling force through the threaded portion 31 at the outer diameter of the water supply and drainage pipe 17, and is pressed by the pressing projection jaw 22 of the pressure ring 20, so that the first guide 41 is pressed. When water and sewage pipe 17 repeats the process of contracting and expanding by water pressure or thermal expansion coefficient, the water tightness is kept stable while organically moving, so that no leakage occurs in the head 10. To provide.

The present invention is connected by a stopper is divided so that the water and sewage pipe connecting from the head is assembled and the water tightness is maintained when connecting to the fastening bolt and nut by a pressure ring, and through a plurality of guides and rubber rings coupled to the outer diameter of the water and sewage pipe In this step, the watertightness can be kept stable.

10 head 11 engaging protrusion
12: watertight groove 13: assembly diameter
14: water and sewage connector 15: ring coupling jaw
16: reinforcing ring 20: pressure ring
21: through hole 22: pressing projection jaw
23: fastener 30: stopper
31: threaded portion 32: cutting surface
33: screw hole 34: fastening groove
35 hole 36 bolt
41: first guide 42: second guide
43: third guide 44: first rubber ring
45: second rubber ring 50: fastening bolt
51: head protrusion 52: nut

Claims (3)

Water and sewage connecting pipe 14 is connected to one side and the watertight groove 12 in which the stopper 30 is located to one side of the inner diameter where the assembly inner diameter 13 is formed, and a head 10 for forming a coupling protrusion 11 on the outside is installed. The through hole 21 is formed at the center of the pressing projection jaw 22 pressing the stopper 30, and the fastening hole 50 through which the fastening bolt 50 through which the head projection 51 is coupled to the coupling protrusion 11 penetrates ( In the water and sewage conduit consisting of a pressure ring 20 fixed to the nut 52 in 23),
The first guide 41 and the second guide 42 and the third guide 43 which are coupled to one end of the water and sewage pipe 17 to one side of the stopper 30 are installed, but the first guide 41 is provided. And a first rubber ring 44 is installed between the second guide 42 and the second rubber ring 45 between the second guide 42 and the third guide 43. Water and sewage pipe for watertight connection.
The method of claim 1,
Rubber ring groove 46 at the portion where the first and second rubber rings 44 and 45 meet between the first guide 41 and the second guide 42 and the second guide 42 and the third guide 43. Water-tight pipe for watertight connection, characterized in that to form a semi-circular).
The method of claim 1,
Water and sewage pipe for watertight connection, characterized in that the width of the first and second guides (41, 42) are the same, and the third guide (43) is wider than the width of the first and second guides (41, 42).

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