KR200389048Y1 - Pipe coupling device - Google Patents

Abstract

The present invention relates to a pipe connecting device consisting of a watertight member coupled to the socket and both sides of the connection between the two synthetic resin pipes, in particular to give a direction to the inner end of the watertight member, each pair is coupled to each side and each watertight when combined The present invention relates to a pipe connecting device that maintains a simple and high watertightness by facing the inner end of the member so as to perform a complementary role in the flow of the synthetic resin pipe.

The configuration of the present invention, the socket for connecting the pipe, and the coupling groove is formed in the inner diameter of the socket into which the pipe is inserted is composed of a plurality of first, second watertight member coupled thereto, the watertight member is the inner end The first and second watertight members may be configured to face each other in opposite directions, and each of the first and second watertight members may include a head and a wing portion therein to insert the head of the first watertight member into a coupling groove of the socket. The tube is inserted into the socket in a state where the joint is preliminarily joined to the circumference of the pipe, and then the head of the second watertight member is forcibly inserted into the gap between the socket and the pipe. The wing parts of the members face each other in opposite directions.

The present invention having such a structure is caused by the wing structure of the first and second watertight members facing in the opposite direction, the flow of the pipe due to factors such as shrinkage of the pipe or settlement of the ground rise depending on the temperature Even if it maintains watertightness complementarily, it can be surely watertight. In particular, it is possible to effectively prevent the bending of the wing parts of the first and second watertight members by excessive flow of the tube inserted by the direction holding ring interposed between the first and second watertight members, thereby ensuring the watertight reliability. There is an advantage to this.

In addition, since the components simply consist of the socket and the first and second watertight members, the manufacturing and assembly process is quick and simple, and thus the manufacturing and construction costs are minimized.

Description

Pipe coupling device

The present invention relates to a pipe connecting device consisting of a watertight member coupled to the socket and both sides of the connection between the two synthetic resin pipes, in particular to give a direction to the inner end of the watertight member, each pair is coupled to each side and each watertight when combined The present invention relates to a pipe connecting device which faces the inner end direction of the member so as to perform a complementary role in the flow of the synthetic resin pipe, thereby maintaining a simple structure and easy coupling and high watertightness.

Conventional pipe connecting device is a socket having a structure in which one side or both sides is extended, a watertight member inserted into the expanded inner diameter of the socket, a pressing member for pressing the watertight member, and the pressing member to the socket or both pressing members Consists of a pressurizing bolt to pressurize.

In the assembly of the pipe connecting device, the tube is inserted into the expanded inner diameter of the socket, and the watertight member is inserted between the extended inner diameter of the socket and the tube circumference, and then the pressure bolt is pressed against the pressure member so that the watertight member is forced into the watertight member. By doing so, it had a watertight function.

However, the conventional pipe connection device requires a lot of unnecessary parts such as bolts and press-fitting members, and there is a disadvantage in that the assembly process, construction time, and cost increase accordingly.

In addition, the pressing member is often broken in the process of forcibly pressing the watertight member, and deformation occurs due to the pressing force continuously applied to the watertight member.

The present invention has been made to solve the above-mentioned conventional problems, the object of the present invention is to provide a simple structure of the pipe connection device consisting of only the socket and the watertight member, the manufacturing and assembly process is quick and simple and accordingly the manufacturing and construction costs To minimize this.

Another object of the present invention, by optimizing the shape and arrangement of the water-tight member to further secure the water-tightness, as well as providing a durable semi-permanent pipe connection device.

The present invention for achieving the above object,

With socket connecting pipe,

Consists of a plurality of first, second watertight member coupled to this by forming a coupling groove in the inner diameter of the socket into which the pipe is inserted,

The watertight member is such that the inner ends are facing in opposite directions to each other,

The first and second watertight members are composed of a head portion and a wing portion inside thereof,

Inserting the head of the first watertight member into the coupling groove of the socket,

The tube is inserted into the socket in a state where the second watertight member is elongated and coupled to the circumference of the pipe in advance. Then, the head of the second watertight member is forcibly inserted into the gap between the socket and the pipe. It is achieved by making the wing portions of the second watertight member face in opposite directions to each other.

Hereinafter, with reference to the accompanying drawings the configuration of the subject innovation will be described in detail.

Figure 1a, 1b is a cross-sectional view showing the structure of the pipe connection device according to the present invention, Figure 2a, 2b is an assembly flow chart of the pipe connection device according to the present invention.

As shown in the drawings, the pipe connecting device of the present invention has a structure in which one side of the socket 10 is fused to the pipe (P2), and inserted into the other side of the pipe (P1), as shown in Figure 1a, Figure 1b As shown in FIG. 2, the pipes P1 and P2 connected to both sides of the socket 20 may be inserted. Here, the technique of FIG. 1B differs from the configuration of the socket 10 of FIG. Therefore, in the following description, it demonstrates collectively.

In the pipe connecting device of FIG. 1A, one side of the socket 10 and 20 is fused to one end of the pipe P2, and the other end thereof is extended to facilitate the insertion of the pipe P1 to be connected. Coupling grooves 12 (22a, 22b) in which the watertight member is located are formed in the inner diameter of the expansion portion, and the coupling grooves 12 (22a, 22b) are formed of a plurality of first, high elasticities such as rubber. 2 watertight members 14a and 14b are inserted.

The first and second watertight members 14a and 14b have an inner diameter smaller than the outer diameters of the pipes P1 and P2 to be connected. The outer side of the cross section is thicker and the inner side thereof is gradually narrower. For convenience of description, the thick outer portion is called the head portion 15a, 15b of the watertight member, and the portion extending narrower is called the wing portion 16a, 16b.

The coupling grooves 12 and 22a and 22b have a size in which the heads 15a and 15b of the first and second watertight members 14a and 14b are coupled to maintain a stable coupling state. In addition, the coupling grooves 12 (22a, 22b) of the inside is expanded and the opening is slightly narrowed structure to prevent the separation step 13 (23a, 23b) in the opening coupled to the first, second The watertight members 14a and 14b can be maintained continuously in a stable state without being separated.

An inclined surface 17, 27 in an inward direction for guiding the insertion of the first watertight member 14a is formed at the inner end of the extension part of the socket 10, 20.

In FIG. 2A, the above-described configuration of the sockets 10 and 20 is formed at both sides.

It describes the assembly method of the pipe connection device of the present invention having such a structure.

As shown in FIGS. 2A and 2B, the heads 15a and 15b of the first watertight member 14a are coupled to and coupled to the coupling grooves 12 and 22a and 22b of one or both sides of the socket 10 and 20. After inserting the second watertight member 14b around the pipes P1 and P2 in advance, the connecting pipes P1 and P2 are inserted into the sockets 10 and 20. At this time, the wing portions 16a and 16b of the first watertight member 14a are in close contact with the outer circumferential surface while the inner diameter thereof is extended by the inserted pipes P1 and P2, and the pipes P1 and P2 are exposed by frictional force due to the close contact. ) Toward the insertion direction.

In this state, the second watertight member 14b is positioned at the inlet of the sockets 10 and 20, and then the heads 15a and 15b of the second watertight member 14b are forced through the jig J. It press-fits into the socket 10,20. The heads 15a and 15b of the second watertight member 14b are contracted and guided to the inclined surfaces 17 and 27 formed at the inlets of the sockets 10 and 20 to engage the sockets 10 and 20. It is inserted into the grooves 12, 22a and 22b, wherein the wing portions 16a and 16b of the second watertight member 14b are not moved by frictional resistance due to close contact with the outer circumferential surfaces of the pipes P1 and P2. Therefore, the heads 15a and 15b face the opposite sides of the insertion direction.

As a result, the blades of the first and second watertight members 14a and 14b are set to face in opposite directions by the assembly sequence described above.

This configuration basically ensures watertightness by the first and second watertight members 14a and 14b, and furthermore, due to factors such as shrinkage of the pipes according to temperature and sinking of the ground, Since the wing portions 16a and 16b of the first and second watertight members 14a and 14b which are configured to face in opposite directions when the P1 and P2 flow, the watertightness of the first and second watertight members 14a and 16b complementarily maintain watertightness. It becomes possible. That is, when there are flows in which the pipes P1 and P2 are released from the sockets 10 and 20, the pipes P1 and P2 along which the wings 16a and 16b of the first watertight member 14a are moved are moved. It is contracted while moving to further compress the circumference of the pipes P1 and P2, thereby further improving watertightness, and when there is a flow into which the pipes P1 and P2 are inserted, the wings of the second watertight member 14b are contracted. Since the watertightness is improved by pressing the circumferences of P1 and P2, the two first and second watertight members 14A complementarily secure watertightness.

Figure 3 is a cross-sectional view showing another embodiment of the present invention pipe connection device.

As shown in FIG. 3, a direction retaining ring 30 is coupled between the first and second watertight members 14a and 14b to maintain the direction of each of the wing portions 16a and 16b.

That is, when the pipes P1 and P2 coupled in the sockets 10 and 20 are severely flowed, a phenomenon in which the direction of the blade is changed may occur. In other words, when the flow width of the pipe (P1, P2) is larger than the length of the blade, the wing of the first or second watertight member (14b) may be contracted and bend the opposite side beyond the threshold. This lowers the pressing force for the watertight member to press the outer circumferential surfaces of the pipes P1 and P2, resulting in poor watertightness.

However, when the direction holding ring 30 is installed between the wings of the first and second watertight members 14a and 14b as shown in FIG. 3, the first and second watertight members are used despite the excessive flow of the pipes P1 and P2. Since the phenomenon in which the direction of the blade | wing of (14a) (14b) changes can be prevented effectively, the reliability of ensuring watertightness improves.

Insertion of the direction holding ring 30 may be inserted in the step before the press-fit of the second watertight member 14b, the cross-sectional shape of the direction holding ring 30 can be configured in various ways, such as a circular triangular square, as shown Likewise, the cross section of a triangle is most appropriate.

Figure 4 is a sectional view of the main part showing another embodiment of the present invention pipe connection device.

Socket 40 for connecting the pipes (P1, P2) as shown in the figure,

Coupling grooves 42 were formed in the inner diameter of the socket 40 into which the pipes P1 and P2 were inserted, and thus a tubular watertight member 44 having an air inlet 45 was mounted thereto.

The pipe connection sequence according to this structure inflates air by injecting air into the watertight member 44 through an air inlet 45 exposed to the outside after inserting the pipes P1 and P2 into the socket 40. . When the watertight member expands and comes into close contact with the coupling groove 42 and the outer circumferential surfaces of the pipes P1 and P2 at an appropriate pressure, the air inlet 45 exposed to the outside is blocked to connect the pipe tightly and firmly.

As described above, the pipe connecting device of the present invention has the structure of the wing parts of the first and second watertight members facing in opposite directions, due to factors such as shrinkage of the pipe or sinking of the ground according to temperature. Even if the flow of the pipe occurs, it is possible to have a certain water tightness because it maintains the watertight complementary. In particular, it is possible to effectively prevent the bending of the wing parts of the first and second watertight members by excessive flow of the tube inserted by the direction holding ring interposed between the first and second watertight members, thereby ensuring the watertight reliability. There is an advantage to this.

In addition, the pipe connection device of the present invention is simply made of a socket and the first, the second watertight member, so the manufacturing and assembly process is quick and simple, and there is an advantage that the manufacturing and construction costs are minimized.

Figure 1a, 1b is a cross-sectional view showing the structure of the pipe connection device according to the present invention.

Figure 2a, 2b is an assembly flow chart of the pipe connection device according to the present invention.

Figure 3 is an enlarged cross-sectional view showing the main part of another embodiment of the present invention pipe connection device.

Figure 4 is a sectional view of the main part showing another embodiment of the present invention a pipe connection device.

** Description of symbols for the main parts of the drawing ***

P1, P2-Tube 10,20-Socket

12,22a, 22b-Coupling Groove 13,23a, 23b

14a, 14b-First and second watertight members 15a, 15b-Head

16a, 16b-wing 17, 27-sloped

30-Directional Ring J-Jig

Claims (8)

In the sockets 10 and 20 connecting the pipes P1 and P2, Coupling grooves 12 (22a, 22b) are formed in the inner diameter of the sockets 10 and 20 into which the pipes P1 and P2 are inserted. Pipe connection device comprising a ring-shaped watertight member coupled to the coupling groove. The method of claim 1, The watertight member is composed of first and second watertight members 14a and 14b having heads 15a and 15b and wings 16a and 16b in the inward direction. Pipe assembly, characterized in that the inner ends of the wing portions (16a) (16b) to face in opposite directions when assembling in the coupling groove (12) (22a, 22b). The method of claim 1, The watertight member is composed of first and second watertight members 14a and 14b having heads 15a and 15b and wings 16a and 16b in the inward direction. When assembled to the coupling groove 12 (22a, 22b), The heads 15a and 15b of the first watertight member 14a are inserted into the engaging grooves 12 (22a and 22b) of the sockets 10 and 20, After the second watertight member 14b is elongated and inserted into the circumference of the pipes P1 and P2 in advance, the pipes P1 and P2 are inserted into the sockets 10 and 20. By forcibly inserting the heads 15a and 15b of the second watertight member 14b into the gap between the sockets 10 and 20 and the pipes P1 and P2, And the wing portions (16a) (16b) of the first and second watertight members (14a, 14b) face each other in opposite directions. 4. The head of the first and second watertight members 14a and 14b of claim 3, wherein the coupling grooves 12, 22a and 22b of the sockets 10 and 20 are formed by narrowing the inner opening end. Pipe connection device, characterized in that the separation prevention step (13) (23a, 23b) to prevent the separation (15a) (15b). The pipe according to claim 3, wherein an orientation retaining ring (30) is provided between the first and second watertight members (14a, 14b) to maintain the direction of the wing portions (16a, 16b). Connector. The pipe according to any one of claims 2 to 5, wherein inclined surfaces (17) (27) for guiding the second watertight member (14b) are formed at the inlet portions of the sockets (10) and (20). Connector. The structure of any one of claims 2 to 4, wherein the coupling grooves 12, 22a and 22b and the first and second watertight members 14a and 14b coupled thereto are formed in the socket 20. Pipe connection device, characterized in that provided on both sides. According to claim 1, The watertight member is provided with an air inlet 45 on one side, After the insertion of the pipes (P1, P2) by injecting air into the air inlet (45) by inflating the watertight member (44) characterized in that the pipe connection device.