KR200444428Y1 - A Stopper of coupler for connecting water pipe - Google Patents

Abstract

The present invention relates to a stopper of a water pipe connector in which a pipe for a water pipe is integrally connected to one side, and an end of the other pipe is inserted into the other side, and a rubber ring is installed at the end of the pipe to connect a pressure ring.

The stopper of the water pipe connector formed integrally with the pipe of the present invention has a rubber ring insertion groove formed inside the water pipe connector, so that the rubber ring is inserted into the rubber ring insertion groove, and the stopper insertion groove is continuous with the rubber ring insertion groove. A circular stopper case is inserted into the stopper insertion groove, and the end surface of the stopper case is closely connected to the inner wall surface of the stopper insertion groove of the water pipe connector, and the case inclined portion and the case inclined from the end of the connector contact portion. It consists of a bent part that is bent at right angles from the tip of the inclined part, a pipe contact part contacting in parallel with the pipe from the bent end part, and a rubber ring contact part connected from the end of the pipe contact part to the other end of the connector fitting contact part and contacting the rubber ring, The stopper case has a circular shape with elasticity toward the center and cut at one side. The stopper member is inserted into the loop, and the stopper member has a stopper inclined portion corresponding to the case inclined portion formed on the outer circumferential surface, and a wedge shaped pipe fixing protrusion is formed on the inner circumferential surface, and the fixing protrusion groove is provided at regular intervals on the pipe fixing protrusion. When the pressure is applied in a direction facing the pressure ring and the connector is formed is inserted into the stopper case along the case inclined portion is characterized in that it is configured to prevent the pipe from being stuck in the pipe fixing projections.

According to the present invention, by installing a pair of stopper member and the stopper case in the stopper insertion groove, it is possible to prevent the pipe inserted on one side of the connector from being separated from the connector, especially without a separate bolt and nut, coupling case By applying a slight deformation from the connector and installing a simple stopper case and stopper member, the productivity is improved by reducing the number of parts compared to the problem to be achieved in the prior art, and the two parts of the tubular shape rather than the bolt and nut are fastened The construction speed is shortened because only the inserting process is performed, and the pressurization of the stopper case and the stopper member is performed during the operation of tightening the fastening bolt of the pressure wheel in the state of being inserted into the stopper insertion groove, rather than a separate pressing process. The two processes can be achieved by the process of Apryun the wheel as it is possible to ensure the water-tightness of the rubber ring by the pressing of the stopper member without the installation of the stopper member.

Water pipes, end connections, pressure wheels, stoppers

Description

A stopper of coupler for connecting water pipes integrally formed with pipes

The present invention is connected to the water pipes integrally installed on one side, the other end of the pipe is inserted into the other side, and the rubber ring is installed on the end of the pipe to connect the pressure ring in the water pipe connection due to water pressure and other factors The present invention relates to a stopper of a water pipe connector integrally formed with the pipe, which prevents the pipe inserted into the pipe from being pulled out and further improves the construction stability and watertightness of the water pipe.

In general, a large tank or a pipe is used as a means for transporting a fluid such as a liquid or a gas over a long distance, and the transport using a large tank among these fluid transport means requires excessively high logistics costs. Many methods are used.

In particular, water and sewage pipes are used as a means of transporting water supply, drainage, and industrial wastewater. Such water and sewage pipes mainly use concrete sewer pipes or cast iron pipes. Due to a lot of time and effort in construction, as well as the possibility of fluid leakage due to corrosion or corrosion due to breakage or chemical resistance during the construction process, the use of plastic pipes with excellent workability is increasing rapidly. The reality is that the amount of water pipes made of synthetic resins such as polyethylene is increasing.

In such a conventional synthetic resin pipe connecting structure, as shown in Figure 1, the end of the other pipe is inserted into the head portion (1a) formed at one end of the pipe (1), the cross-section is fastening bolt ( The bent portion of 2) is caught and fixed to the locking groove 1b formed in the head portion 1a of the one-side pipe 1, and the bolt fastening hole formed at the end of the fastening bolt 4 having the threaded thread formed thereon. It consists of a configuration of connecting the other pipes by the operation to fasten the fastening nut (3) by passing through.

At this time, the pressure ring (4) connecting the pipe (1) and the connection of the other pipe, as shown in the enlarged cross-sectional view of Figure 1, the rubber ring having a triangular cross-section with the pressing projection formed on the inner peripheral surface between the pipes ( 5) to pressurize to maintain watertight between the pipes,

However, the pressure wheel 4 used in the conventional synthetic resin pipe connection structure as described above is very weak at the portion into which the fastening bolt 2 is inserted, so the bolt fastening hole of the pressure wheel 4 when tightening the fastening bolt 2. If whitening occurs around or exceeds the assembly limit of the fastening bolt is a disadvantage that is broken.

In addition, when the rubber ring 5 having a triangular cross section is installed at a portion where the pipe 1 and another pipe are connected, the water ring 4 is watered to either side depending on the degree of eccentricity or pressure being pushed to one side. There was a problem that is leaked.

On the other hand, the present applicant improves the above problems, after fixing the head portion formed by the reinforcing ring binding portion at one end of the pipe by fusion with the pipe end, by installing a rubber ring and pressure ring inside the head portion of the other pipe While the end is inserted, and the circular rubber ring is caught by the rubber ring engaging jaw of the rubber ring insertion portion formed on one side of the head portion to maintain the watertightness, the pressure wheel is fastened to the head portion as fastening bolts and nuts, By installing a reinforcing ring at the head of the pipe connection part, the pipe and the connector which can maintain the watertightness by preventing deformation of the head part integrally with the pipe, as well as the deformation of the pressurized pressure ring are disclosed in Korean Patent No. 10-0512370. I have registered.

2 and 3, the head portion 30 having the reinforcing ring engagement portion 31 formed at one end of the pipe 10 is integrally fused to the pipe 10 butt-fused. In this case, the pipe 10 has a rubber ring inserting portion from the end of the water pipe part 32 having a large inner diameter to which the end portion is fitted and the end of the water pipe part 32 from which the reinforcing ring engagement part 31 is formed. 34 is formed, the reinforcing ring 40 is inserted into the outer peripheral surface of the rubber ring insert 34 to reinforce the strength of the reinforcing ring binding unit 31, the bent bolt head of the fastening bolt 60 is the reinforcement Shrink-type stopper 22 is cut out by the inner periphery of the pipe through-hole of the pressure ring 20, which is fixed to the ring 40 and is installed to be fixed, and the pipe through-hole having the same inner diameter as the outer circumferential surface of the pipe 10 is formed. On the outer circumference of the pressure ring 20 is formed a head guide blade 21 into which the reinforcing ring engagement portion 31 is inserted. In addition, a plurality of bolting holes 23 through which the fastening bolt 60 penetrates are formed between the contracting stopper 22 and the head guide blade 21, while the outer peripheral surface of the end of the pipe 10 and the head part are formed. A circular rubber ring 50 is pressed into the rubber ring engaging jaw 36 of the rubber ring insertion portion 34 formed at one side of the 30 so as to prevent the fluid from leaking between the pipes.

Therefore, after fixing the head part 30 to one end of the pipe 10 by fusion, the rubber ring 50 and the pressure ring 20 are installed inside the head part 30 to insert another end of the pipe. The circular rubber ring 50 is caught by the indentation of the rubber ring engaging jaw 36 of the rubber ring inserting portion 34 formed on one side of the head part 30 to maintain watertightness, and the pressure ring 20 is Since the bolt head is caught and fixed to the reinforcing ring 40 installed on the head part 30 as the fastening bolt 60 and the nut, the reinforcing ring 30 installed in the head part 30 of the pipe connection part. The watertightness can be maintained while preventing deformation of the head portion.

In the configuration as described above, the contraction type stopper 22 formed on the pressure wheel 20 can press the rubber ring 50 to maintain the watertight performance.

However, the water supply pipe has a problem that, unlike the sewer pipe, the pressure of the fluid is large and the pipe connected to the connector is separated when the pressure is applied in a direction from the connector.

In addition, there is a problem in that the pipe is separated from the pipe due to the pressure is released from the connector according to the installation environment.

In order to solve this problem, a technology for installing a separate coupling outside the connector has been disclosed, but since it is necessary to install not only the pressure ring but also the coupling, a large number of parts are required and the process time required for pipe connection is increased. There was a problem.

The present invention has been made in order to improve the conventional problems as described above, by forming a stopper insertion groove for inserting the stopper member inside the connector, by installing a pair of stopper member and the stopper case in the stopper insertion groove It is intended to prevent the pipe inserted on one side of the connector from leaving the connector.

In particular, it is intended to improve productivity by reducing the number of parts compared to the problem to be achieved in the prior art by applying a slight deformation from the conventional connector without additional bolts, nuts and coupling cases, and by installing a simple stopper case and stopper member. .

In addition, since only the work of inserting the two parts of the tubular shape, not the fastening of the bolt and nut, it is intended to improve the construction speed.

Moreover, the pressurization of the stopper case and the stopper member is not performed by a separate pressurization process, but is performed during the operation of tightening the fastening bolt of the pressure wheel in the state inserted into the stopper insertion groove, thereby achieving two purposes in one process. .

In addition, it is intended to ensure the watertightness of the rubber ring by pressurization of the stopper member for the purpose of watertightness without installing a stopper on the pressure wheel as in the conventional pressure wheel.

As a technical means for achieving the above object, the stopper of the water pipe connector formed integrally with the pipe of the present invention, the water pipe is integrally installed on one side, the other end of the pipe is inserted In the stopper of the water pipe connector in which the pressure ring is connected by installing a rubber ring at the end of the pipe, a rubber ring insertion groove is formed inside the water pipe connector so that the rubber ring is inserted into the rubber ring insertion groove. And a stopper insertion groove is formed in succession, and a circular stopper case is inserted into the stopper insertion groove, and the end surface of the stopper case is in close contact with the inner wall surface of the stopper insertion groove of the water pipe connector, and from the end of the connector contact portion. The case inclined part is formed to be inclined, the bent part bent at a right angle from the end of the case inclined part, and the pipe is bent from the end of the bent part. It is composed of a pipe contact part contacting in parallel with the contact point, and a rubber ring contact part connected from the tip of the pipe contact part to the other end of the connector contact part and contacting the rubber ring. The stopper member forming the shape is inserted, the stopper member is formed on the outer peripheral surface of the stopper inclined to match the case inclined portion, the inner peripheral surface is formed with a wedge-shaped pipe fixing protrusion, the fixed fixing groove in the pipe fixing protrusion at regular intervals When the pressure is applied in a direction facing the pressure ring and the connector is formed is inserted into the stopper case along the case inclined portion is characterized in that it is configured to prevent the pipe from being stuck in the pipe fixing projections.

At this time, a plurality of pipe fixing protrusions are formed along the inner circumferential surface of the stopper member, and the cross-sectional shape has a triangular shape with an acute end thereof, and the fixing protrusion groove is formed in a shape in which the pipe fixing protrusion is formed into an arc shape inside the pipe fixing protrusion. It is characterized by that.

According to the present invention, by forming a stopper insertion groove into which the stopper member can be inserted into the inside of the connector, and by installing a pair of stopper members and a stopper case in the stopper insertion groove, the pipe inserted at one side of the connector is separated from the connector. It can be prevented.

In particular, by adding a slight deformation from the conventional connector without a separate bolt, nut, coupling case, and by installing a simple stopper case and the stopper member, the productivity is improved by reducing the number of parts compared to the problem to be achieved in the prior art.

In addition, the construction speed is reduced because only the operation of inserting the tubular two parts, not the fastening of the bolt and the nut, proceeds.

Moreover, the pressurization of the stopper case and the stopper member is not carried out in a separate pressurization process, but is performed during the operation of tightening the fastening bolt of the pressure wheel in the state inserted into the stopper insertion groove, so that two purposes can be achieved in one process. do.

In addition, it is possible to secure the watertightness of the rubber ring by pressurization of the stopper member for the purpose of watertightness without installing a stopper on the pressure wheel as in the conventional pressure wheel.

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

Figure 4 is an exploded perspective view showing a state in which a stopper of the water pipe connector formed integrally with the pipe according to the present invention is installed, Figure 5 is a perspective view of the coupling of Figure 4, Figure 6 is a coupling state of the stopper of the water pipe connector of the present invention 7 is a partial cutaway perspective view showing a connector in the present invention, Figure 8 is a partially cutaway exploded perspective view of the stopper case and the stopper member in the present invention, Figure 9 shows the installation state of the stopper case and the stopper member in the present invention It is sectional drawing shown.

Prior to describing the stopper of the present invention, the configuration of the water pipe connector to which the stopper of the present invention is installed will be described first.

The water pipe connector 100 integrally formed with the pipe of the present invention has a structure in which a pipe for a water pipe is integrally connected to one side, and an end of the other pipe 200 is inserted into the other side.

Looking at Figure 7, it can be seen that the pipe insertion groove 110, the stopper insertion groove 120, the rubber ring insertion groove 130 is formed from the upper right to the lower left on the inside of the water pipe connector 100. have.

The pipe insertion groove 110 is provided with a locking jaw 111 at the tip end of the other pipe 200 is inserted and fixed tightly, the locking jaw 111 is formed to be inclined as shown, or bent at a right angle but not shown It may be formed.

As shown in the figure, the stopper insertion groove 120 is located on the lower left side, that is, the rear side of the pipe insertion groove 110 from the pipe insertion groove 110 with reference to FIG. 7, and the stopper locking jaw 121 is provided at the front end thereof. It is.

A pair of stopper case 400 and the stopper member 500 are inserted into the stopper insertion groove 120.

On the other hand, the rubber ring insertion groove 130 is formed on the rear side with respect to the stopper insertion groove 120.

The rubber ring insertion groove 130 is inserted into the rubber ring 300, the rubber ring 300 is in close contact with the inner peripheral surface of the other pipe 200 is inserted into the connector 100, the tip is a stopper case 400 It is configured to be in close contact with

At the front end of the rubber ring insertion groove 130, it is preferable that the rubber ring locking jaw 131 is formed to be inclined as shown in order to limit the movement of the rubber ring 300.

Expansion portion that the outer diameter is expanded in the portion where the stopper insertion groove 120 is located on the inner side of the outside of the connector 100 having the internal structure as described above with respect to FIG. 150 is formed.

This is to maintain the thickness in order to maintain the structural strength of the connector 100 when increasing the inner diameter to form the stopper insertion groove (120).

On the other hand, the portion corresponding to the outer side of the rubber ring insertion groove 130 is formed with a pressure ring connecting portion 140, the outer diameter is increased while continuing with the widening portion 150.

On the outer circumferential surface of the pressure connecting portion 140 is provided with a reinforcing ring 900 having a cross section 'L' shape as shown.

At this time, the boundary between the widening portion 150 and the pressure connecting portion 140 has a locking step 141 is formed so that one side of the reinforcing ring 900 having the 'L' shape is caught on the locking step 141.

The reinforcing ring 900 is installed to prevent the tip of the connector 100 from being deformed by the pressure when the fastening bolt 700 is tightened to the tip of the connector 100.

At this time, the outer circumferential surface of the connector 100 may further form a reinforcing ring fixing jaw 160 to prevent the reinforcing ring 900 is separated.

In addition, the reinforcing ring 900 may be configured to be firmly fixed by the hook attachment 910 is caught by the reinforcing ring fixing jaw 160 by protruding the hook attachment 910.

In addition, the outer circumferential surface of the reinforcing ring 900 is inserted into the inside of the pressure ring 600.

At this time, while the fastening bolt 700 is fastened to the circumference of the pressure wheel 600, the head of the fastening bolt 700 is caught on one side of the reinforcing ring 900, and the pressure wheel 600 is fixed.

In the configuration of the connector 100 as described above, the stopper of the present invention consisting of the stopper case 400 and the stopper member 500 is characterized in that the stopper insertion groove 120 is installed.

The stopper case 400 has a circular shape as shown in FIGS. 8 and 9.

The cross-sectional shape of the stopper case 400 is inclined from the end of the connector close contact portion 410 is in close contact with the inner wall surface of the stopper insertion groove 120 of the water pipe connector, and inclined from the end of the connector close contact portion 410 as shown. Part 420, the bent portion 430 bent at a right angle from the tip of the case inclined portion 420, the pipe contact portion 440, the pipe contact portion in contact with the pipe 200 in a parallel state from the end of the bent portion 430 ( 440) It is composed of a rubber ring contact portion 450 that is connected to the other end of the connector close contact portion 410 and the rubber ring 300 in contact with the tip.

In addition, the stopper member 500 is elastic toward the center and forms a circular shape in which one side is cut, and a stopper inclined portion 510 corresponding to the case inclined portion 420 is formed on the outer circumferential surface thereof, and thus the case inclined portion 420. It has a structure that is inserted into the stopper case 400 along.

9 illustrates a state in which the stopper member 500 is inserted into the stopper case 400.

At this time, a wedge-shaped pipe fixing protrusion 520 is formed on the inner circumferential surface of the stopper member 500, so that pressure is applied in a direction in which the pressure ring 600 and the connector 100 face each other, along the case slope 420. The pipe fixing protrusion 520 is embedded in the pipe 200 while being inserted into the stopper case 400 so as to prevent the pipe 200 from being separated.

At this time, the pipe fixing protrusion 520 is characterized in that the fixing projection groove 530 is formed at a predetermined interval.

The fixing protrusion groove 530 is formed along an extension line connecting the pipe fixing protrusions 520 of the plurality of stages. The fixing protrusion groove 530 causes the stopper member 500 to extend from the center of the stopper member 500 to the outside. By increasing the elastic restoring force serves to allow the stopper member 500 to be inserted deeply into the stopper case 400 while fixing the pipe 200.

At this time, the pipe fixing protrusion 520 is preferably formed with a plurality of stopper member 500 along the inner circumferential surface as shown, the end of the cross section may be a right angle as shown in the drawing, but takes an acute triangle shape It is preferable.

In addition, the fixing protrusion groove 530 is preferably formed in a shape that is recessed in an arc shape inside the pipe fixing protrusion 520.

This can prevent a phenomenon such as cracking in the stopper member 500 when force is concentrated in a portion where the fixing protrusion groove 530 is formed.

The stopper member 500 has a diameter smaller than that of the pipe 200 in a state in which one side sections are overlapped with each other by an elastic restoring force, but one side is cut and opened at both ends cut by the elastic pipe ( 200) can be inserted.

Referring to the operation and effects of the present invention made of such a configuration as follows.

As shown in Figs. 4 to 9, the pressure ring 600, the rubber having a pipe insertion hole 620 in the pipe 200 when inserting another pipe 200 to be connected to the connector 100 connected to the pipe integrally Insert the fastening bolt 700 into the bolt insertion hole 610 of the pressure ring 600 while the ring 300, the stopper case 400 and the stopper member 500 are inserted in this order, and flatten the fastening bolt 700. When the part 710 is fastened to the nut 800 in a state of being caught by the locking step 141 of the pressure connecting part 140, the connector 100 and the pressure wheel 600 are fastened to each other.

Before the nut 800 is tightened, that is, before the stopper member 500 is inserted into the stopper case 400, the stopper member 500 is wrapped around the outer circumferential surface of the pipe 200. It does not serve to fix the 200.

When the nut 800 is tightened, the stopper case 400 and the stopper member 500 are pressurized by the rubber ring 300 in a state of being fitted into the stopper insertion groove 120 as shown.

That is, the stopper case 400 is pressured backwards, whereby the stopper member 500 is also forced to move backwards.

At this time, when the case inclined portion 420 and the stopper inclined portion 510 are in contact with each other, the stopper case 400 receives a pressure to move backward, and finally, the stopper member 500 is connected to the stopper case 400. It is pressed toward the center by this means that the tip of the pipe fixing protrusion 520 of the stopper member 500 is inserted into the pipe 200, the stopper member 500 is fixed to the pipe 200.

In this case, even if the connected pipe 200 receives a force in a direction that is separated, it is difficult to be separated by the stopper member 500.

That is, the pipe 200 can be firmly fixed to the connector 100 using only the stopper case 400 and the stopper member 500 without a separate clamp.

Although the present invention has been shown and described with respect to the above specific embodiments, it is understood that the present invention can be variously modified and changed without departing from the spirit or the scope of the present invention provided by the following claims. It will be appreciated that those skilled in the art can easily know.

1 is a front sectional structure diagram showing a connection structure of a typical synthetic resin pipe.

Figure 2 is an exploded perspective view of the knitting pipe connector formed integrally with the conventional pipe and the connector.

Figure 3 is a front cross-sectional view of the single-piece pipe connector of Figure 2.

Figure 4 is an exploded perspective view showing a state in which the stopper of the water pipe connector formed integrally with the pipe according to the present invention is installed.

5 is a perspective view of FIG. 4.

6 is a cross-sectional view of the coupling state of the stopper of the water pipe connector of the present invention.

Figure 7 is a partially cut perspective view of the connector in the present invention.

8 is a partially cutaway exploded perspective view of the stopper case and the stopper member in the present invention.

9 is a cross-sectional view showing an installation state of the stopper case and the stopper member in the present invention.

Explanation of symbols on the main parts of the drawings

100: connector 110: pipe insertion groove

111: engaging jaw 120: stopper insertion groove

121: stopper locking jaw 130: rubber ring insertion groove

131: rubber ring engaging jaw 140: pressure ring connection

141: locking step 150: widening portion

160: reinforcing ring fixing jaw 200: pipe

300: rubber ring 400: stopper case

410: connector close contact portion 420: case inclined portion

430 bend portion 440 pipe contact portion

450: rubber ring contact portion 500: stopper member

510: stopper slope 520: pipe fixing protrusion

530: fixing projection groove 600: pressure wheel

610: bolt insertion hole 620: pipe insertion hole

700: Fastening bolt 800: Nut

900: reinforcement ring 910: attachment

Claims (2)

Water pipes are integrally connected to one side, the other end of the pipe 200 is inserted into the other side, and the rubber ring 300 is installed on the end of the pipe 200, the pressure pipe 600 is connected to In the stopper of the connector 100, The rubber ring insertion groove 130 is formed inside the water pipe connector 100 so that the rubber ring 300 is inserted into the rubber ring insertion groove 130, and the stopper insertion groove is continuously connected to the rubber ring insertion groove 130. 120) is formed, A circular stopper case 400 is inserted into the stopper insertion groove 120, and a cross section of the stopper case 400 is in close contact with the inner wall surface of the stopper insertion groove 120 of the water pipe connector 100. ), The case inclined portion 420 formed to be inclined from the tip of the connector fitting portion 410, the bent portion 430 bent at a right angle from the tip of the case inclined portion 420, and the state parallel to the pipe from the end of the bent portion 430. It is composed of a rubber ring contact portion 450 which is connected to the pipe contact portion 440, the pipe contact portion 440 is in contact with the other end of the connector contact portion 410 and the other end contacting the rubber ring 300, In the stopper case 400, a stopper member 500 having an elasticity toward the center and forming a circular shape in which one side is cut is inserted, and the stopper member 500 corresponds to a stopper inclined portion 420 of the case inclined portion 420. 510 is formed on the outer circumferential surface, a wedge-shaped pipe fixing protrusion 520 is formed on the inner circumferential surface, and the fixing protrusion groove 530 is formed on the pipe fixing protrusion 520 at regular intervals, so that the pressure ring 600 and When pressure is applied in the direction in which the connector 100 faces, the pipe fixing protrusion 520 is embedded in the pipe 200 while being inserted into the stopper case 400 along the case inclined portion 420 to remove the pipe 200. Characterized in that configured to prevent, Stopper of water pipe connection formed integrally with pipe. The method of claim 1, A plurality of pipe fixing protrusions 520 are formed along the inner circumferential surface of the stopper member 500. The pipe fixing protrusions 520 have a triangular shape with an acute end thereof, and the fixing protrusion groove 530 has a pipe fixing protrusion 520. It is formed in the shape enclosed in arc shape inside), Stopper of water pipe connection formed integrally with pipe.

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