KR100492525B1 - The pipe joint - Google Patents

Abstract

The present invention relates to a round bar-shaped pipe joint, the round-shaped pipe joint (1) is fixed to the outside of the connection portion of each sewage pipe (2) connected to each other, as well as a protrusion (3) is formed at each end of the dumbbell-shaped cross section And a gasket (4) in which the protrusion (3) is tightly fixed to the sewer pipe (2), and is fastened to the outside of the sewer pipe (2) connection part while surrounding the outer side of the gasket (4) and forms a space at each tip end thereof. Coupling band for bracket (5) is installed so that the round bar (6) is inserted into the inner space of the fixed bracket (5) to fasten each round bar (6) with the bolt (7) and the nut (8) (9), wherein the coupling band is firmly fastened to the sewer pipe through the round bar to prevent leakage caused by the breakage of the coupling band connecting portion, and the sewer pipe is doubled through the protrusion formed on the gasket. By exponent To prevent leakage or seepage of the water tubes in the joint, and the index area formed by the gaskets being will become sever it is easy to maintain the confidentiality of sewers, with nopyeojum the watertightness of the connection, even if installed in kkeokin state at a predetermined angle.

Description

Round Bar Joint {THE PIPE JOINT}

The present invention relates to a sewage pipe fitting (Sewage Fitting: SF) connecting the sewage pipe, in particular, by using a coupling band and a gasket that is in close contact with the pipe is inserted into the round rod more tightly connected to the sewage pipe leak The present invention relates to a round rod type joint that prevents leakage and prevents damage to the connection in advance.

In general, sewage pipes are steel pipes formed by rolling steel sheets or synthetic resin pipes using PVC. The sewage pipes should have high external pressure strength, durability and workability, and are usually buried underground to guide the discharge of various living sewage. It is to play a role.

That is, since the sewage pipes are required in accordance with the length to be constructed, it is necessary to connect several sewage pipes to each other in actual construction, for this purpose, welding work or various sewer pipe connection devices are used.

Here, the conventional connection structure for connecting the sewer pipes, as shown in Figures 1 and 2, gasket 102 having a predetermined width on the outside of the connection portion in the state that the front end of each of the sewer pipes connected to each other matched ) Is wound and fixed, the metal coupling band 103 is fastened to the outer side of the gasket 102, the flange 103a formed on both ends of the coupling band 103 bolt 104 and the nut 105 The coupling band 103 is coupled to the outer side of the sewer pipe 101 by coupling with the coupling force.

By the way, when tightening the flange 103a of the coupling band 103 for the connection of the sewer pipe 101, as shown in Figure 3, the flange 103a is inclined inwards, not only difficult to tighten Cracks occur at the lower end of the flange 103a, which causes the coupling band 103 to be broken. In addition, a part of the gasket 102 rises into the space therebetween through the inclination of the flange 103a. The space is generated between the sewer pipe 101 and the gasket 102, so that a leak occurs due to a poor sealing state.

In addition, as shown in FIG. 4, when the connection part of the sewer pipe 101 is installed while being bent at a slight angle, the gasket 102 surrounding the connection part of the sewer pipe 101 is opened in the sewer pipe 101. Since it is difficult to be in close contact with the part, a leak occurs due to the lifting phenomenon of the gasket 102, and the connection part of the sewer pipe is easily broken by external force because the gasket 102 does not closely wrap the sewer pipe 101. will be.

Accordingly, the present invention has been made in view of the above-described circumstances, and by using a gasket closely attached to the pipe with a coupling band inserted with a round rod, the connection of the sewer pipe is more closely prevented from leaking or leaking from the sewer pipe connection part. In addition, it is an object of the present invention to provide a round tube type joint to prevent damage to the connection in advance.

The present invention for achieving the above object is provided with a pipe joint consisting of a gasket which is fixed in contact with the outside of the connection portion of each sewer pipe connected to each other and a coupling band that is fastened and fixed to the outside of the sewer pipe connection while surrounding the outside of the gasket. On the other hand, a fixed bracket forming a space at each end of the coupling band is installed, the rod is inserted into the inner space of the fixed bracket to fasten each round rod with a bolt and a nut so that the coupling band is outside the gasket. It is tightly fixed, and the protrusions are formed along the outer circumferential surface of the gasket and fixed to the sewer pipe, respectively. By this, the connection part of the sewer pipe is doubled and the inner side of the coupling band And a seating groove extending from the front end in the circumferential direction so that the protrusion of the gasket can be inserted and fixed in the seating groove. An exponential space is formed between the sewer pipe and the gasket by the protrusion of the gasket. In addition, another exponential space is formed between the coupling band and the gasket.

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Therefore, the coupling band is firmly fastened to the sewer pipe through the round bar to prevent leakage due to breakage of the coupling band connection part, and the sewage pipe joint is indexed by double indexing the sewer pipe through the protrusion formed in the gasket. It is possible to prevent the leakage or leakage of the water gasket is formed by the water gasket, even if the sewage pipe is installed at a certain angle bent to increase the watertightness of the connection portion and it is easy to maintain the confidentiality of the sewer pipe.

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

5 is a perspective view showing a round bar-shaped tube joint according to the present invention, Figure 6 is a perspective view showing a coupling band of the round bar-shaped tube joint according to the present invention, Figure 7 is a round bar-shaped tube joint of the present invention Figure 8 is a perspective view of the gasket, Figure 8 is a longitudinal cross-sectional view showing a connection state of the sewer pipe connected to the round bar pipe joint according to the present invention, Figure 9 is a cross-sectional view taken along the line BB of Figure 8, Figure 10 is It is a longitudinal cross-sectional view which shows the state which the connection of the sewage pipe which concerns on this invention opened.

The structure of the round rod-shaped pipe joint 1 shown in Figure 5 of the above drawings, the contact fixing of the connection portion of each sewage pipe 2 connected to each other, as well as the protrusions (3) formed on each of the front end dumbbell Gasket (4) having a cross section and tightly fixed to the sewer pipe (2) and the outer side of the gasket (4) is fastened to the outside of the sewer pipe (2) connection portion while forming a space at each tip The coupling bracket 5 is installed so that the round bar 6 is inserted into the inner space of the fixed bracket 5 so that each round bar 6 can be fastened with the bolt 7 and the nut 8. It is a structure consisting of a band (9).

Here, the characteristic of the rod-shaped tube joint (1) having the above structure is that the gasket (4) of the dumbbell-shaped cross-section having a projection (3) at each tip end with the protrusion (3) in close contact with the sewer pipe (2) A bolt which is wound and installed, and the coupling part of the coupling band 9 fastened while covering the outer side of the gasket 4 is formed of a round bar 6 wrapped with a fixing bracket 5. (7) is to be fastened by the nut (8).

That is, in the case of the coupling band (9) constituting the round-shaped tube joint (1), as shown in Figure 6, the fixing bracket (5) is fixed to each end of the coupling band (9) to form a space The rod 6 is inserted into the space of the fixing bracket 5, and a fastening hole 10 penetrating the fixing bracket 5 and the round bar 6 is formed to bolt to the fastening hole 10. (7) is inserted and fixed with a nut (8), while a seating groove (9a) is formed in each of the inner leading end of the coupling band (9), each of the projections (3) formed in the leading end of the gasket (4) Is to be inserted into the mounting groove (9a) can be fixed.

In addition, as shown in FIG. 7, the gasket 4 wound and fixed to the connection portion of the sewer pipe 2 is formed with a protrusion 3 having a circular cross section at each distal end of the gasket 4, thereby providing a gasket 4. ) Has a dumbbell-shaped cross section as a whole, the water stop groove (3a) is formed in the inner center of the protrusion of the gasket (4) is in contact with the sewer pipe (2) in the state in which the protrusion (3).

Therefore, the coupling structure of the round bar type pipe joint 1 consisting of the coupling band 9 and the gasket 4 has a gasket 4 in contact with the sewer pipe 2, as shown in FIGS. 8 and 9. Since the inside of the protrusion 3 is contacted in a split shape through the water stop groove 3a, and if a leak occurs in the sewer pipe 2, the primary and secondary indexes of the protrusion 3 of the gasket 4 are By more thorough indexing, water leakage is prevented in advance, and a water jet space (s) is formed between the sewer pipe (2) and the gasket (4) by the protrusion (3) of the gasket (4) and the coupling band ( Another exponential space (s) is formed between the 9 and the gasket (4), it is possible to more suitably correspond to the flow of the sewage pipe 2 and the bending of the sewer pipe (2).

On the other hand, if the sewage pipe 2 is installed at a predetermined angle as needed, as shown in Figure 10, even if the sewage pipe 2 is installed by bending the gasket (4) through the exponential space (s) As it comes into contact with the sewer pipe (2), the protrusion (3) of the gasket (4) is to be in close contact with the sewer pipe (2) irrespective of the state of the sewer pipe (2) because it can block the occurrence of leakage.

Therefore, the space between the sewage pipe 2 and the round rod-shaped pipe joint 1 is not generated because the tightening of the round rod-shaped pipe joint 1 is perfect, and the gasket 4 of the round rod-shaped pipe joint 1 is By being in close contact with the sewer pipe 2, there is no leakage due to the improvement of watertightness, and the coupling band 9 of the rod-shaped pipe joint 1 is fastened in a solid state so that the breakage of the fastening portion does not occur.

As described above, according to the round bar type pipe joint according to the present invention, the coupling band is firmly fastened to the sewer pipe through the round bar to prevent leakage caused by damage to the coupling band connection part. Through the formed protrusions, the sewer pipe can be doubled to prevent leakage or leakage from the sewer pipe joint. The exponential space is formed by the gasket to increase the watertightness of the connecting part even when the sewer pipe is installed at a predetermined angle. It is easy to maintain the confidentiality of the sewer pipe.

1 is a longitudinal cross-sectional view showing a connection state of the sewage pipe according to the prior art,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view showing a connection failure state of the sewage pipe according to the prior art,

Figure 4 is a longitudinal cross-sectional view showing a state where the connection of the sewage pipe according to the prior art,

Figure 5 is a perspective view of a round rod-shaped tube joint according to the present invention,

Figure 6 is a perspective view of the coupling band of the round rod-shaped tube joint according to the present invention,

Figure 7 is a perspective view showing a gasket of the round bar joint in accordance with the present invention,

Figure 8 is a longitudinal cross-sectional view showing a connection state of the sewage pipe connected to the round bar type pipe joint according to the present invention,

9 is a cross-sectional view taken along the line B-B of FIG. 8;

10 is a longitudinal sectional view showing a state where the connection of the sewer pipe is opened according to the present invention.

Explanation of symbols on the main parts of the drawings

1: round bar type pipe joint 2: sewer pipe

3: protrusion 3a: index groove

4: gasket 5: fixing bracket

6: round bar 7: bolt

8: nut 9: coupling band

9a: mounting groove 10: fastening hole

s: exponential space

Claims (4)

In the pipe joint consisting of a gasket which is fixed to the outside of the connection portion of each sewer pipe connected to each other and a coupling band that is fastened to the outside of the sewer pipe connection portion while surrounding the outside of the gasket, Fixing brackets forming a space at each end of the coupling band are installed, and a round bar is inserted into an inner space of the fixing bracket, thereby fastening each round bar with a bolt and a nut so that the coupling band is fixed to the outside of the gasket. The protruding portions are formed along the outer circumferential surface of the gasket and fixed to the sewer pipe, respectively, and the water stop groove is formed at the inner center of the protruding portion of the gasket to contact the sewer pipe with the protruded inner part of the gasket. And a connecting part is double-indexed, and a seating groove extends along the circumferential direction at an inner end portion of the coupling band so that the protrusion of the gasket can be inserted and fixed into the seating groove. (delete) (delete) According to claim 1, Rounded pipe joint, characterized in that the exponential space is formed between the sewer pipe and the gasket by the protrusion of the gasket and another exponential space is formed between the coupling band and the gasket.