KR20010007621A - Flexible and high strength spiral tube - Google Patents

Abstract

PURPOSE: A flexible and high-strength spiral tube is provided to maximize durability and flexibility by improving a structure of dual wall even though external earth pressure is strengthened to the spiral tube. CONSTITUTION: A flexible and high-strength spiral tube includes a bellow type reinforcing rod(15) having a concave part(12) on which an inclined reinforcing rod(6) is spirally wound to an internal surface(4) on the basis of an external surface of hollow means(3) that is formed by inserting a supporting rod at the center of a dual wall surfaces of the concave means. A reinforcing rib is mounted at a lower surface or a central portion of the hollow means and the inclined reinforcing rod is formed integrally with the reinforcing rib at the external surface of the hollow means.

Description

Flexible and High Strength Spiral Tubes {.}

The present invention relates to a drainage spiral pipe that is widely used in civil engineering, etc., which are often curved according to the terrain of a construction site. In this case, the external earth pressure is often unreasonable. As shown in FIG. , By inserting the support (5) in the groove portion 12 to support the double wall surface (2) (2 ') with the hollow sphere (3) and the groove portion 12 to reinforce not only external pressure but also flexibility Invention application (utility model registration application No. 93-11699) and the applicant's selection application for reinforcement with an inclined reinforcement on the outer side groove (utility model registration application No. 94-16938, utility model registration application No. 98-16329) Although the present invention is provided in the above), the present invention is an invention for diversification of uses while providing a flexible and high-strength product for its products.

Reinforce the external pressure reinforcement for the spiral pipe of the applicant's selection, but maintain the flexibility to maximize the durability and flexibility by improving the structure of the double wall surface (2) (2 ') for the multi-faceted use. It is a product.

1 is a perspective view of the present invention.

2 or 3 or 4 is a cross-sectional view of the main part of the conventional product

Figure 5 (a) (b) is a cross-sectional view of the main part of the present invention

6 (a) and 2 (b) are cross-sectional views of main parts of the embodiment of FIG. 5.

Figure 7 or 8 (a) (b) is a perspective view and a sectional view of the main portion of the embodiment of FIG.

9 is a perspective view of an embodiment of the present invention

10 or 11 is a main portion cross-sectional view of the main portion perspective view and embodiment of Figure 9;

12 (a) and 2 (b) are cross-sectional views of main parts of the embodiment of FIG. 11.

FIG. 13 is an essential cross-sectional view of the embodiment of FIG. 12; FIG.

[Explanation of symbols on the main parts of the drawings]

Spiral tube 2,2 '. Double wall surface 3. Hollow ball

4. Inner wall 5. Support 6. Slant support

7. Outer side 8,8 '. Support Rib 9. Fusion Plate

9 '. Fusion Point 10. Drilling Tool 11. Changchun Tooling

12. Spiral recess 13. Arc support 15. Mold reinforcement

15 '. Mold reinforcement 16,16 '. Reinforcement 17. Reinforcement supporting wall

18. Exterior wall 19. Support 22,22 '. Reinforcement Groove

The present invention is to improve the structure of the double wall surface (2) (2 ') of the both sides of the groove portion 12 of the inner surface to form a hollow sphere (3) and the groove portion 12, but the inclined support (6) and the inner The external pressure reinforcement and flexibility are made to be flexible to the wall surface 4, and the external pressure reinforcement and durability reinforcement of the product of the present invention are provided on the outer surface 8 as shown in FIG. 5 (a). In order to form the inclined support 6 to the secondary hollow tool (3 '), the cross section of the hollow sphere (3) while integrating a spiral winding on the outer surface (7) The product is inserted into the mold reinforcing bar (15), and for this embodiment, as shown in Figure 5 (b) to support the inclined support (6) by projecting the reinforcing rib (8) on the lower side of the hollow sphere (3) If it is made, the external pressure reinforcement is reinforced.

In this case, as shown in FIG. 7 or FIG. 8 (A) (B), the reinforcing ribs 8 are disposed below or in the middle of the hollow sphere 3 in order to reduce the weight and reinforce the processability and flexibility of the drilling tool 10. The inclined reinforcing bar 6 is configured by being integrated with the reinforcing ribs 8 from the outer surface 7.

In the embodiment of FIG. 5, as shown in FIG. 6A, when the hollow sphere 3 has two layers of cross-sectional reinforcement bars 15 and 15 ′ in two layers, an ultra-high strength spiral tube is provided. As shown in Fig. 6 (a), the cross section of the hollow sphere 3 is required according to the conditions of the construction site. The type of reinforcing bar 15 'is configured, but the width between the hollow spheres 3 is narrowed to some extent and inserted into the reinforcing support wall 17.

And as shown in Figure 6 (b) when provided with a high strength spiral hole tube Covering the mold reinforcing bar (15 ') with the outer wall (18) to configure the outer groove (12'), if you configure the drilling tool 10 is provided with a very high strength spiral tube.

As a separate embodiment, as shown in Figure 6 (c), when provided with a high-strength spiral tube spiral wound and the cross section is The support 19 is integrated into the outer groove 12 'between the mold reinforcing bars 15' and, as the case may be, the outer wall surface 18 is formed.

As an example of this, as shown in Fig. 6 (a) and (c), the cross section is integrated into the outer groove 12 by the V-shaped or arc-shaped reinforcing bar 6, 6 'in the role of the reinforcing bar. As shown here in FIG. 6 (b), Both sides of the type reinforcing bar 15 'are supported by the support ribs 8 and 8' between the inclined reinforcing bars 6 '. In this case, as shown in FIG. 8, when the perforated tool 10 or the perforated tool 11 is configured in the spirally wound lengthwise direction on the spirally wound inner wall surface 4, the culvert drainage pipe It is an invention to provide.

In addition, as an embodiment of the present invention, as shown in FIG. 9 or 10 or 11, the hollow sphere 3 formed of the support 5 in the middle portion of the inner groove 12 of the double wall surface 2, 2 '. Section on It is filled with the type reinforcement stand 15, and the spiral winding circuit inclined support 6 is integrated in the outer groove with the fusion point 9 'of the inner wall 4, and the proper length (ℓ) for use as the culvert drainage pipe. Intermittently configure the circular reinforcement bar 13 and the fusion bar 9 intermittently but form the Jangcheon tool 11 in the fusion bar 9 between the circular reinforcement bar 13 to solve the opening rate. The castle is provided, and is modified to increase the opening rate indicating the drainage capacity of the culvert drainage pipe.

Also as an example thereof, as shown in FIG. Double wall (2) (2 ') support ribs (8) are inclined with reinforcing bars (6) An arc reinforcing bar 13 and a welding point 9 'may be formed in the groove between the type reinforcing bars 15'. Here, as shown in FIG. 13 (c), by integrating with the outer wall surface 18, the external pressure strength and durability are further reinforced by the mutual role of the circular reinforcement bar 13. As shown in FIG. 13, the product of the present invention is provided by constructing the jangwon arc reinforcing rod 13 ′ while forming only two thirds of the circumference and forming the remaining one third of the circumference.

The present invention is provided to the reinforcement and flexibility of the earth pressure than the conventional products in the high-strength spiral pipe or culvert pipe for the culvert drainage pipe and facilitates flexibility and drilling work by removing the fusion zone (9) of the inner wall 14 and culvert drainage pipe Jangcheon tool (11) in the formation and the circular reinforcement bar (13) formed by the invention to ensure the durability of the spiral pipe while increasing the opening rate.

Claims (6)

Sloped reinforcement stand 6 based on the outer surface 7 of the hollow sphere 3 formed by inserting the support 5 into the middle portion of the double wall surface 2, 2 'of the recess 12 of the inner surface. To the inner side surface 4 so that the recessed portion 12 constitutes a spiral winding and Flexible and high-strength spiral tubes forming the shape reinforcement stand 15 The flexible and high-strength spiral tube according to claim 1, which consists of an inclined hollow tool (3 ') and an inclined reinforcing bar (6) integrally on the outer surface (7) of the hollow sphere (3). The flexible and high-strength spiral tube according to claim 2, wherein the reinforcing support wall (17) and the cross section constitute a V-shaped or arc-shaped reinforcing bar (6) (6 ') and support ribs (8) (8'). The cross section according to claim 3 Type reinforcement stand (15 ') and Flexible and high-strength spiral tube consisting of overlapping shaped reinforcement bars 15 and 15 " The flexible and high strength spiral tube of Claim 3 which comprised the support 19 and the outer wall surface. 5. The flexible and high-strength spiral tube according to claim 4, wherein the outer recess (12 ') is formed on the outer wall (18) to form the drilling tool (10).