Porous profile wound reinforced tube

Abstract

The utility model relates to a porous product shape winding reinforced pipe, which comprises a pipeline main body, a reinforcing rib formed by winding is arranged on the outer end surface of the pipeline main body, and the reinforcing rib is hollow; a reinforcing frame is arranged in the reinforcing rib and adheres to the inner wall of the reinforcing rib, the reinforcing frame is internally provided with reinforcing ribs for supporting the upper and lower walls of the reinforcing frame, and the reinforcing ribs are integrally formed with the reinforcing frame; the reinforcing ribs divide the reinforcing rib into two first cavities; a reinforcing pipe is formed by winding on the outer end surface of the reinforcing rib, the reinforcing pipe is hollow to form a second cavity, and the cross-sectional shape of the two first cavities and the second cavity form a "product" shape. Compared with the defects of stress concentration of a single-cavity reinforcing rib and weak collaborative bearing of a double-cavity reinforcing rib, the reinforcing pipe is arranged in a product shape cavity, the two first cavities formed by the reinforcing ribs and the second cavity formed by the reinforcing pipe cooperate with each other, can bear stress support in the upper end and laterally, and a multidimensional stress support system is constructed.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral wound pipes, in particular to a porous crystal-shaped wound reinforced pipe. Background Art

[0002] In the fields of municipal engineering, water conveyance, industrial fluid transmission, etc., plastic wound pipes have been widely used due to their significant advantages such as light weight, corrosion resistance, convenient installation, and long service life. Such pipes are usually manufactured by extrusion and winding forming processes. In order to meet the requirements of mechanical properties such as pipe support strength and ring stiffness in different scenarios, the industry generally winds a reinforcing rib structure on the outer surface of the pipe. Through the synergistic effect of the reinforcing ribs and the pipe body, the overall bearing capacity of the pipe is improved to cope with complex working conditions such as soil pressure, external impact, and conveying medium pressure.

[0003] At present, the mainstream plastic wound pipe reinforcing rib structures on the market are mostly single-cavity or double-hole cavity designs. Since the single-cavity reinforcing rib structure has only one closed cavity inside, when承受 external loads, the stress concentration phenomenon is relatively obvious, and deformation or even rupture is likely to occur at the weak parts of the cavity wall, resulting in limited support effect of the reinforcing ribs and difficulty in meeting the use requirements of high-pressure and high-load scenarios. Although the double-hole cavity reinforcing rib structure improves the stress distribution and enhances the partial support strength to a certain extent by increasing the number of cavities, due to the limitation of its chamber layout form, the cooperative bearing capacity between the two cavities is weak. When subjected to uneven external forces, the force transmission between the two cavities is不均衡, and deformation is likely to occur at the top of the reinforcing ribs, and there is still a problem of insufficient local bearing capacity, and the overall ring stiffness and impact resistance of the pipe cannot be further significantly improved. Summary of the Utility Model

[0004] To solve the technical problems existing in the above background art, the utility model provides a porous crystal-shaped wound reinforced pipe.

[0005] The technical solution of the utility model is as follows: A porous crystal-shaped wound reinforced pipe, including a pipe body, wherein a wound reinforcing rib is provided on the outer end face of the pipe body, and the reinforcing rib is hollow; A reinforcing frame is arranged inside the reinforcing rib and is fitted to its inner wall, and reinforcing ribs for supporting the upper and lower walls of the reinforcing frame are arranged inside the reinforcing frame and are integrally formed with the reinforcing frame. The reinforcing ribs divide the inside of the reinforcing rib into two first cavities; A reinforcing pipe is wound on the outer end face of the reinforcing rib, and the reinforcing pipe is hollow to form a second cavity, and the cross-sectional shape of the second cavity and the two first cavities forms a "pin" shape.

[0006] In order to improve the support effect of the reinforcing pipe, a corrugated pipe is arranged inside the second cavity, and the corrugated pipe is fitted to the inner wall of the reinforcing pipe.

[0007] In order to release stress and reduce deformation when the reinforcing rib is compressed, multiple stress relief holes are provided in the reinforcing rib, and the multiple stress relief holes are arranged along the thickness direction of the reinforcing rib.

[0008] In order to reduce the lateral compressive force on the reinforcing tube and make the reinforcing tube mainly bear the radial compressive force, the outer diameter of the reinforcing tube is not greater than the maximum transverse length of the reinforcing rib section.

[0009] To improve the overall ring stiffness and ring flexibility of the pipe, the maximum distance between the reinforcing pipe and the main pipe body shall not be less than 1 / 10 of the inner diameter of the main pipe body.

[0010] To prevent the size difference between the reinforcing tube and the reinforcing rib from being too large, and to avoid the reinforcing tube being too small and losing its supporting effect, the outer diameter of the reinforcing tube is 4 / 5 to 5 / 6 of the height of the reinforcing rib.

[0011] To facilitate the fixing of the reinforcing ribs, a base plate is spirally wound around the outside of the main body of the pipe, and the reinforcing ribs are wound around the outside of the base plate and fixed thereto.

[0012] To improve the stability of the reinforcing rib, its bottom side is supported. A limiting protrusion is provided on one side of the upper surface of the base plate, and the limiting protrusion abuts against the bottom end face of the reinforcing rib.

[0013] In order to prevent excessive deformation of the reinforcing rib when it is compressed by external force, one side of the reinforcing rib is set to be wavy and the other side is set to be planar.

[0014] To improve the supporting strength of the reinforcing ribs, the cross-sectional shape of the reinforcing ribs and the reinforcing frame is trapezoidal.

[0015] The beneficial effects of this utility model are as follows: This utility model is a multi-hole, pin-shaped wound reinforced tube. Compared with the defects of stress concentration in single-cavity reinforcing ribs and weak load-bearing capacity in double-cavity reinforcing ribs, this reinforced tube, through its pin-shaped cavity layout, has two first cavities formed by reinforcing ribs and a second cavity formed by the reinforcing tube working together to provide force support at the upper end and laterally, thus constructing a multi-dimensional force support system. This structure can evenly distribute external loads to the three cavities, significantly reducing local stress concentration. It not only significantly improves the ring stiffness of the pipeline but also enhances its impact resistance and deformation resistance. It can easily cope with high-pressure and high-load scenarios in municipal engineering and water conservancy transportation, avoiding rupture at weak points of the reinforcing ribs or overall deformation of the pipeline. The integrated structure of the reinforcing frame and reinforcing ribs provides rigid support for the inner wall of the reinforcing ribs. Combined with the trapezoidal cross-section of the reinforcing ribs and reinforcing frame, it not only improves the bending strength of the structure itself, but also disperses external forces through the optimized cross-sectional shape. The corrugated pipe fitted inside the second cavity can absorb impact energy through the elastic deformation of its corrugated structure, further buffering the impact of external loads on the pipeline. The stress relief holes and wavy side design on the reinforcing ribs can effectively release the internal stress generated during molding and stress application, avoiding structural cracking due to stress accumulation and significantly extending the service life of the pipeline. Attached Figure Description

[0016] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this solution; Figure 2 This is a cross-sectional view of the proposed solution. Figure 3 This is a magnified view of point A; The components represented by the various reference numerals in the diagram are: 1. Pipe body; 2. Reinforcing rib; 3. Reinforcing frame; 4. Reinforcing rib; 5. First cavity; 6. Reinforcing tube; 7. Second cavity; 8. Corrugated pipe; 9. Stress relief hole; 10. Base plate; 11. Limiting protrusion. Detailed Implementation

[0018] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0019] Example As mentioned in the background art, the existing single-cavity or double-cavity spiral tube reinforcing rib 2 has relatively concentrated stress when subjected to force, making it very easy to deform and break when compressed in multiple directions, thereby affecting the support strength. Therefore, the inventors have improved the existing reinforcing rib 2 and designed a new type of reinforcing structure, which will be explained in detail below with reference to the figure.

[0020] This embodiment provides a porous, triangular-shaped spiral wound reinforced pipe, designed to address the stress concentration and insufficient load-bearing capacity issues of existing plastic spiral wound pipe reinforcing ribs. Through an innovative design of a triangular, multi-cavity reinforcing structure, it significantly improves the overall ring stiffness and impact resistance of the pipe, making it suitable for complex, high-load applications such as municipal engineering and water conservancy projects. (See [link to relevant documentation]). Figure 1 and Figure 2The reinforced pipe uses the main pipe body 1 as its core load-bearing foundation. The main pipe body 1 is made of high-density polyethylene through extrusion molding, possessing excellent corrosion resistance and anti-aging properties. Different inner diameter specifications can be designed according to actual transportation requirements. Reinforcing ribs 2 are fixed to the outer end face of the main pipe body 1 via a spiral winding process. The reinforcing ribs 2 are made of high-strength plastic and are hollow in shape. Their cross-sectional shape is trapezoidal, with the lower base fitting against the outer surface of the main pipe body 1, and the upper base used for subsequent winding and fixing of the reinforcing pipe 6. This trapezoidal structure effectively disperses external loads and avoids stress concentration in localized areas.

[0021] In this embodiment, combined with Figure 3 The outer surface of the main pipe body 1 is pre-spirally wound with a base plate 10, which is fixed to the outer surface of the main pipe body 1 by hot-melt. The reinforcing rib 2 is wound around the outside of the base plate 10 and hot-melt welded to the base plate 10. A limiting protrusion 11 is integrally formed on one side of the upper end face of the base plate 10. The limiting protrusion 11 extends along the length of the base plate 10. When the reinforcing rib 2 is wound on the base plate 10, the limiting protrusion 11 abuts against one side of the bottom end face of the reinforcing rib 2. The limiting protrusion 11 has a triangular cross-section, which supports the bottom end face of the reinforcing rib 2. It can effectively limit the lateral displacement of the reinforcing rib 2 during the winding process, ensure that the winding trajectory of the reinforcing rib 2 is regular, and at the same time, when the pipe is subjected to axial force, the limiting protrusion 11 can transfer part of the force, thereby improving the axial tensile resistance of the overall structure.

[0022] In this design, to further enhance the structural stability of the reinforcing rib 2, a reinforcing frame 3 is installed inside the reinforcing rib 2, completely fitting its inner wall to ensure a tight, gapless connection. A reinforcing rib 4 is longitudinally arranged inside the reinforcing frame 3, integrally formed with the reinforcing frame 3. Its upper and lower ends are respectively formed with the upper and lower walls of the reinforcing frame 3, creating an I-shaped support structure. This reinforcing rib 4 evenly divides the hollow area inside the reinforcing rib 2, forming two first cavities 5. The two first cavities 5 are distributed on both sides of the reinforcing rib 4, jointly bearing the pressure load from the outside. Compared with the traditional single-cavity structure, the stress distribution is more uniform, and the deformation resistance is significantly improved.

[0023] Based on the above structure, the structural design of the reinforcing rib 4 has also been optimized. One side of its surface is designed to be wavy, while the other side is planar. The wavy surface can increase the buffering of some impact force through deformation of the wavy structure when subjected to external forces; the planar surface ensures the stable transmission of supporting force. In addition, multiple stress relief holes 9 are opened inside the reinforcing rib 4. These stress relief holes 9 are evenly arranged along the thickness direction of the reinforcing rib 4 in a ring-shaped pattern. When the pipe is subjected to uneven external loads, the stress relief holes 9 can effectively disperse locally concentrated stress and prevent the reinforcing rib 4 from breaking due to excessive stress.

[0024] In this embodiment, in combination with Figure 2 and Figure 3 , on the outer end face of the reinforcing rib 2, a reinforcing pipe 6 is also fixed by a spiral winding process. The winding direction of the reinforcing pipe 6 is the same as that of the reinforcing rib 2, and during the winding process, it is tightly fixed to the upper bottom of the reinforcing rib 2 by a hot melt welding process to form an inseparable whole. The reinforcing pipe 6 is of a hollow structure, and the cavity formed inside it is the second cavity 7. The second cavity 7 and the two first cavities 5 inside the reinforcing rib 2 together form a "pin" - shaped structure in the cross - sectional direction. The two first cavities 5 are distributed left and right below, and the second cavity 7 is directly above the two first cavities 5. The three cooperate with each other to form a stable triangular force - bearing system. This "pin" - shaped structure can evenly transfer the external load to the three cavities, greatly reducing the force - bearing burden on a single cavity.

[0025] In addition, in combination with Figure 3 , to improve the anti - compression performance of the second cavity 7, a corrugated pipe 8 is also provided inside the reinforcing pipe 6. The corrugated pipe 8 is made of high - strength plastic material, and its outer wall fits perfectly with the inner wall of the reinforcing pipe 6. The corrugated structure of the corrugated pipe 8 can produce elastic deformation when the pipe is subjected to radial pressure, absorb part of the pressure energy through the deformation, and can quickly return to its original state after the pressure disappears, preventing the reinforcing pipe 6 from undergoing permanent deformation due to excessive extrusion. The outer diameter of the reinforcing pipe 6 is not greater than the maximum length of the cross - section of the reinforcing rib 2 in the horizontal direction, ensuring that the reinforcing pipe 6 will not exceed the overall contour of the reinforcing rib 2 after winding, avoiding bearing too much radial force and causing the support of the reinforcing pipe 6 to lose its effect; at the same time, the outer diameter of the reinforcing pipe 6 is controlled between 4 / 5 - 5 / 6 of the height of the reinforcing rib 2. This size ratio can not only ensure the volume of the second cavity 7 to provide sufficient support force, but also avoid the center of gravity being unstable due to the excessive height of the reinforcing pipe 6.

[0026] In addition, the maximum distance between the reinforcing pipe 6 and the pipe body 1 is not less than 1 / 10 of the inner diameter of the pipe body 1. This size design can ensure a reasonable lever arm between the reinforcing structure and the pipe body 1. When the pipe is subjected to external soil pressure or impact, the "pin" - shaped structure composed of the reinforcing pipe 6 and the reinforcing rib 2 can more efficiently transfer the force to the pipe body 1, preventing the pipe body 1 from being indented or cracked due to excessive local force, and improving the overall ring stiffness and ring flexibility of the pipe material.

Claims

1. A porous spiral wound reinforced tube, comprising a tube body (1), characterized in that, The outer end face of the pipe body (1) is provided with a wound reinforcing rib (2), and the reinforcing rib (2) is hollow; A reinforcing frame (3) is arranged inside the reinforcing rib (2) and is fitted to its inner wall. Reinforcing ribs (4) that support the upper and lower walls of the reinforcing frame (3) are arranged inside the reinforcing frame (3) and are integrally formed with the reinforcing frame (3). The reinforcing ribs (4) divide the inside of the reinforcing rib (2) into two first cavities (5); A reinforcing pipe (6) is wound on the outer end face of the reinforcing rib (2), and the reinforcing pipe (6) is hollow to form a second cavity (7), and the cross-sectional shape of the second cavity (7) and the two first cavities (5) forms a "pin" shape.

2. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, A corrugated pipe (8) is arranged inside the second cavity (7), and the corrugated pipe (8) is fitted to the inner wall of the reinforcing pipe (6).

3. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, A plurality of stress relief holes (9) are formed in the reinforcing rib (4), and the plurality of stress relief holes (9) are arranged along the thickness direction of the reinforcing rib (4).

4. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, The outer diameter of the reinforcing pipe (6) is not greater than the maximum length in the transverse direction of the cross-section of the reinforcing rib (2).

5. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, The maximum distance between the reinforcing pipe (6) and the pipe body (1) is not less than 1 / 10 of the inner diameter of the pipe body (1).

6. The porous, spiral-wound reinforced tube according to claim 4, characterized in that, The outer diameter of the reinforcing pipe (6) is 4 / 5 - 5 / 6 of the height of the reinforcing rib (2).

7. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, A bottom plate (10) is spirally wound on the outer side of the pipe body (1), and the reinforcing rib (2) is wound on the outside of the bottom plate (10) and fixed to it.

8. The porous, spiral-wound reinforced tube according to claim 7, characterized in that, A limiting protrusion (11) is arranged on one side of the upper end face of the bottom plate (10), and the limiting protrusion (11) abuts against the bottom end face of the reinforcing rib (2).

9. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, One side of the reinforcing rib (4) is arranged in a wavy shape, and the other side is arranged in a flat shape.

10. The porous, spiral-wound reinforced tube according to claim 1, characterized in that, The cross-sectional shapes of the reinforcing rib (2) and the reinforcing frame (3) are trapezoidal.

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