KR100426406B1 - Flexible and pressure-reinforced synthetic pipe - Google Patents

Abstract

1. Field of invention

The present invention relates to a pipe for flexibility and external pressure reinforcement when used as a long length in a synthetic resin supply and drainage pipe.

2. Purpose of invention

In the case of using a long length of several tens of meters at the site of the synthetic resin pipe for supply and drainage, a pipe having a smooth inner and outer sides or a corrugated pipe having an inner and outer sides having a corrugated structure is used. The inner surface is to maintain the smooth surface and to form a corrugated structure on the outer surface, but to provide internal and external pressure strength while maintaining flexibility by integrating a plurality of reinforcement in the groove.

3. Composition of invention

The present invention maintains the corrugated structure in the longitudinal direction on the inner side of the inner surface is smooth, but the plurality of arc-shaped reinforcing rods 12 are integrated in the recess 13, and as an embodiment thereof, the alternating reinforcing rod 12 'is inserted. Or it is an invention provided in the configuration of the reinforcement 17 on the inner side.

4. Effect of invention

The present invention, if you want to use the length can be rolled around each other when transported in the form of roll to release the pipe according to the site use in the field of use to provide flexibility, when used for supply and drainage and internal and external pressure reinforcement and lightweight It is an invention that provides economically useful effects.

Description

Flexible and externally reinforced plastic pipes {.}

BACKGROUND OF THE INVENTION The present invention is a synthetic resin pipe widely used for supply and drainage pipes having a size of about 30 m / m to 80 m / m, and particularly a product of a long PE pipe. The pipes of this circular shape were used, or the corrugated pipes were formed with continuous grooves and protrusions on the inner and outer sides, but the smooth pipes were used for several tens of meters in length. It is mainly used by arranging it, because it is composed of hard synthetic resin pipes, so it is difficult to wind or loosen due to lack of flexibility, and it is economical in terms of cost, while the grooves and protrusions are continuously repeated on the inside and outside sides. Corrugated pipe formed in the shape is formed in the groove on the inner side of the pie wound in the form of rolls to be placed and used at the site of use It is easy to loosen and re-use it and then rewind it, but it is easy to use it, but the recess and protrusion formed on the inner side are formed, so it is not practical to use water supply and drainage pipes because of resistance to this. There is an urgent need for the use of flexible reinforced pipes that are better suited for use in curved or curved areas.

The present invention is to provide a supply and drainage in the supply and drain pipe smoothly while providing a reinforcement of flexibility and lightness as well as external pressure reinforcement for ease of use according to the conditions used.

1 is a partial perspective view of the main part of the present invention

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

Figure 3 is a partial perspective view of the main portion of Embodiment 1 of Figure 1

4 is a cross-sectional view taken along the line B-B in FIG.

5 is a partial perspective view of an embodiment of the main part of FIG.

FIG. 6 is a partial perspective view of the reinforcing bar inserted in the recess in FIG. 4; FIG.

FIG. 7 is a partial perspective view of the main portion of Embodiment 2 in FIG. 1; FIG.

8 is a cross-sectional view taken along the line C-C in FIG.

[Description of Major Symbols in Drawing]

11.Pipe 12,12 '. Reinforcement stand 13. Groove

14. Reinforcement protrusion 15. Inner side 17. Reinforcement

In order to solve the above problems, the present invention constitutes a smooth surface with an inner surface 15 so that the water supply and drainage effect is good, and the outer surface has a reinforcement protrusion 14 in the longitudinal direction so that flexibility is provided while internal and external pressure is reinforced. Convex stand 12 is alternately constituted in the circumferential direction, provided with a recess 13 between the convex stand 12 is provided to reinforce flexibility and internal pressure resistance.

Therefore, the present invention is to achieve the above object and described in detail based on the drawings

1 and 2, the inner surface 15 is a smooth surface and the outer surface is a reinforcement protrusion 14 in the longitudinal direction in the synthetic resin pipe 11 having a predetermined thickness on the inner and outer surfaces while maintaining a circular cross section. ) And the convex portion 12 are alternately configured in the circumferential direction or the spiral winding direction, but between the convex portion 12 is formed with a recess 13 is formed of a synthetic resin pipe made of flexible and external pressure reinforced to be.

The groove depth of the flexible reinforcing groove 13 formed in the provided pipe 11 is formed to be about 2/3 deeper than the thickness of the pipe 11 so that the groove 13 reinforces flexibility. It is configured to maintain a drainage role flowing in the inner space of the pipe 11, the thickness of the reinforcing protrusions 14 provided to maintain the thickness of the pipe 11 to provide the external pressure strength.

The present invention is to provide a product that provides flexibility and to solve the internal and external pressure reinforcement, as an embodiment thereof for the flexible reinforcement in the convex portion 12 of the same portion as the outer surface of the pipe 11 described above, Figure 3 and Figure As shown in Fig. 4, the thickness of the convex portion 12 is composed of the convex portion 12 'about 2/3 of the thickness of the pipe 11 to provide a structure of flexibility and external pressure reinforcement. The product of the invention reinforces the fluidity of the PE raw material in the manufacturing process to promote the formation of the smooth surface of the inner side and the reinforcing protrusions 14. Further, the position of the convex portion 12 'in the pipe 11 described above In order to solve the phenomenon that the external pressure strength is lowered in the longitudinal direction in which the recess 13 is formed, since it is formed in a straight line in the longitudinal direction, as shown in FIG. 5, the reinforcement in the longitudinal direction on the outer surface of the pipe 11 is shown. Formed alternately with the stone 14 There is provided a product in which the structure of the convex portion 12 ′ formed between the groove portions 13 is alternately formed in the left and right sides along the longitudinal direction to uniformly reinforce the main surface external pressure strength in the circumferential direction. For the external pressure reinforcement in the pipe 11, as shown in Fig. 6, the reinforcing bar 21 may be inserted and provided on the outer side in the longitudinal direction along the outer portion where the convex portion 12 'is formed. The pipe 11 to be provided is rolled and transported in a rolled state according to the use site, and at the use site, the pipe 11 is rolled up again for water supply and drainage, and a lightweight product is provided to facilitate the transport operation. 7 and 8, the beam penetrates the thick wall forming the pipe 11, such as the reinforcing protrusions 14, in accordance with the position of the convex portion 12 formed in a straight line in the longitudinal direction. The invention is provided by constructing and providing the steel space 17 in the longitudinal direction, which provides flexibility and external pressure strength while providing lightness during transport for use of the pipe 11 of the present invention for water supply and drainage.

In the present invention, the inner surface is smoothed to facilitate the supply and drainage, and the outer surface constitutes the reinforcing protrusions 14 and the recesses 13, but the arc-shaped reinforcing bars 12 and 12 'are integrated into a plurality. It is a product to provide resistance and internal / external pressure strength reinforcement, and the embodiment of the present invention is excellent in cost reduction due to light weight by forming the reinforcing hole 17, especially in the diameter of φ30m / m to φ80m / m in PE pipe of several tens of meters in length. It is an invention for providing a useful product in the reality that it is rolled up to size and moved to release again.

Claims (4)

In the inner and outer sides of the pipe made of synthetic resin for water supply and drainage to have a certain thickness, The inner surface 15 is a smooth surface, the outer surface is formed to alternately form the reinforcing protrusions 14 and the convex stand 12 in the circumferential direction while maintaining a constant interval in the longitudinal direction, A flexible and external pressure-reinforced synthetic resin pipe formed by forming a recess 13 between the convex zones 12 formed in the circumferential direction. The method of claim 1, The convex stand 12 is a flexible and external pressure-reinforced synthetic resin pipe constituting a convex stand 12 'of about 2/3 of the thickness. The method according to claim 1 or 2, A flexible and externally pressure-reinforced synthetic resin pipe having a reinforcing space 17 formed in a longitudinal direction at a portion of the reinforcing protrusion 14 at which the convex portions 12 and 12 'are located. delete