KR200331235Y1 - Pipe joint - Google Patents

Abstract

The present invention is a connection structure and pipe connector of pipes for transporting water, sewage, and all fluids, and can reduce the work time and work time due to welding when steel pipes are piped, The connection structure of the pipe connector which does not cause an external defect and its device.

According to the present invention, the end of one pipe 1 is expanded into a two-layer structure (8.9), and the rubber packing (6.7) is double mounted on the end of the other pipe (2). 8.9) and the connection structure and pipe connector of the pipe connecting the pipe using a plurality of pipe connector cover (10. 11) and a plurality of bolts, nuts (15.16).

Description

Pipe coupler {Pipe joint}

The present invention relates to a connection structure and a pipe connector of a pipe from a small pipe to a large pipe, and the rubber packing is doubled to increase the airtightness of suppressing rust generation at the pipe end and double blocking of water pressure. Groove (3) in the insertion part of the groove is designed to prevent the effect of the separation of the tube and the expansion and contraction without the expansion tube is easy and quick and easy construction and disassembly.

Figure 3 is a cross-sectional view showing the connection structure of the KP mechanical joint cast iron pipe of the conventional example, there is a risk of water leakage and pipe 1.2 detachment due to road load, ground subsidence, excessive water hammer pressure and the starting point of rust generation at both ends of the pipe (3.4) This causes rust to spread throughout the tube.

Figure 4 is a cross-sectional view showing the connection structure of the grooved grooved joint pipe of the conventional example, when the circle of the tube does not match each other, when the cutting surface of the pipe end portion 3 is not precisely cut in a right angle structure, grooved groove If the ice 4 is not made precisely, leakage occurs when the rubber ring 5 is slightly misaligned when the rubber ring 5 is mounted on the pipe during the field construction.

In addition, the tube end (3) is a fragile portion of the coating from the rust (3) is generated from the diffusion spreads out of this due to the lifting phenomenon of the packing portion (5) occurs and leaks occur.

The rubber packing seating part 6 at the end of the tube should be smooth as the glass surface when grounded with the rubber packing 5, and foreign matters may stick, coating agglomeration phenomenon, and may cause leaks even on rough brush marks.

The present invention improves the problems of the conventional example (Fig. 3, Fig. 4) as described above by applying the connection method mainly used only in small-diameter to large-diameter pipes, various problems that the welding method does not solve (pipes New construction, coating problem of welding part, excessive construction cost, complicated construction, etc.) to reduce the construction cost, shorten construction period, and reduce after-sales cost, and provide leak-free connection structure and pipe connector. .

1 is an exploded perspective view

2 is a cross-sectional view of the coupling state

3 is a related art 1

Figure 4 is a prior art 2

In order to achieve the above object, the present invention forms an enlarged portion of a two-layer structure (8. 9) in which one side (1) of the tube is somewhat larger than the original diameter.

1 and 2, the first-layer expansion pipe (9) portion of the mold or roller so that the primary packing (7) and groove processing (3) portion coupled to the end portion 4 of the other one pipe (2) can easily enter Expand using.

The inner surface of the two-layer expansion pipe (8), the secondary packing (6) and the pressing ring (5) should be fastened and the outer surface should be equipped with a pipe connector 10, so that the roller or other so that the inclined surface (8a) of the expansion pipe can make a steep slope It should be expanded using the method.

Pipe connector 10 connects the pipe using a plurality of connector covers (10. 11) and bolts and fasteners (15.16) in order to connect one pipe (1) and the other pipe (2) and one side of the connector When the bolt 14 is fastened through the bolt hole 13 in the surface 12, the circular pressure ring (iron ring) is crimped by the force. The cross-section of the circular pressure wheel 5 has a connector cover (a rectangular or circular shape). The pressing wheel 5 is pushed by the plurality of bolts 14 through the bolt holes 13 of the 10 and the pressing wheel serves to squeeze the secondary packing. The other pipe 2 is an insertion part for inserting into the water polo. As a function of preventing the detachment of the pipe due to the locking phenomenon caused by the secondary packing 6 and the pressing wheel 5, assisting the hydraulic pressure blocking of the secondary packing 6, and closely contacting the inner surface of the primary packing 7. The grooves (3) from the inner surface to the outer surface in order to prevent the primary packing (7) from being pushed when the inserting portion (4) is inserted into the 1st layer expansion pipe (9) of the water port. The.

The primary packing (7) forms a rubber packing in a "c" shape in order to block the occurrence of rust, which is a weak point of the end of the pipe (4), and to block the water pressure inside the primary (4) ) A convex protrusion structure (7b) is formed on the inner surface of the primary packing (7) so that it can be mounted on the inner side of the one pipe (2) and the groove processing (3) to block the packing phenomenon when the two pipes are joined. And, the end portion (7a) of the primary packing (7) is formed to be slightly closed in (2) so that it can be tightly attached after mounting on the pipe.

Secondary packing (6) is formed in a rectangular trapezoidal shape slightly larger than the inner surface of the second-layer expansion pipe (8) is pressed by the pressing ring (5) and the inclined surface of the second-layer expansion pipe (8) and groove processing of the pipe (2) ) It is firmly adhered to the part and serves to block water pressure secondly.

As described above, the joint structure of the present invention compensates for the shortcomings of welded steel pipes and cast iron pipes, grooves, and ring joints to provide complete blockage of leaks, simple construction, reduction of construction cost, and effective maintenance and management.

Claims (5)

The one pipe 1 is expanded into a two-layer structure (8. 9), and the other pipe 2 has an expansion pipe structure which extends from the inner surface to the outer surface in the shape of the groove grooves 3. The connector for connecting the one pipe 1 and the other pipe 2 has a bolt and bolt hole 15. 16 for coupling a plurality of connector covers 10. 11 and a plurality of connector covers 10. 11. And a pipe connector having a structure of a bolt (14) and a bolt hole (13) for closely contacting a circular pressure ring (5) for pressing the first and second rubber packings (7.6). The pipe connector according to claim 1, wherein the cross section of the pressure ring is circular or square. The rubber packing according to claim 1 is a "c" shaped structure and one side of the primary packing (7) mounted on the end portion (4) of the other tube (2) to be inserted into the expanded one tube (1) inner surface Projection structure 7b formed on the inner surface of the primary packing 7 to be seated on the inner surface of the groove gurubing 3 and inwardly recessed form 7a formed at the end of the primary packing 7 Pipe connector characterized in that. delete delete