High trapezoidal multi-hole high-cavity reinforced structure wall pipe

Abstract

The utility model relates to a kind of high trapezoidal multi-hole high cavity reinforced structure wall pipe, including pipeline main body, reinforcing rib is formed with spiral winding in pipeline main body outer end face, it is hollow, and cross-sectional shape is set to trapezoidal;Reinforcing rib outer end face spiral winding is formed with reinforcing pipe, reinforcing pipe is hollow tubular structure, its cross-sectional shape is circular, the outer diameter of reinforcing pipe is not greater than the maximum width of reinforcing rib;Reinforcing frame is arranged in the cavity of reinforcing rib, and it is tightly arranged with the inner wall of reinforcing rib, corrugated pipe is arranged in reinforcing pipe, and it is tightly arranged with the inner wall of reinforcing pipe.Compared with the defect that existing circular reinforcing rib is prone to depression, cracking under asymmetric load, the structure wall pipe is designed through trapezoidal cross-section reinforcing rib, utilizes the advantage that trapezoidal structure stress dispersion is uniform, lateral pressure resistance is strong, efficiently transfers external force such as soil pressure, ground load to pipeline main body, avoids local stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage pipe technology, specifically a high trapezoidal porous high cavity reinforced structural wall pipe. Background Technology

[0002] Polyethylene spiral PE pipe, also known as steel-reinforced polyethylene (PE) spiral corrugated pipe, is a type of pipe made of composite PE material using U-shaped steel strips. It has a wide range of applications, including underground drainage, sewage, rainwater collection, water supply, and ventilation in municipal engineering, and protection pipes for power cables, optical cables, and communication signal cables in the electrical and telecommunications fields.

[0003] Existing spiral pipe structures typically consist of a main pipe body for media flow. To improve the support strength of the spiral pipe and delay its deformation time, reinforcing ribs are usually wound around the outside of the main pipe body. These reinforcing ribs are usually hollow structures. In existing technologies, for ease of winding, the cross-sectional shape of the reinforcing ribs is usually designed as a circle, that is, a single-hole annular shape. However, in actual use, it is difficult to fully meet the performance requirements under complex working conditions. Specifically, when the pipeline is used in municipal engineering underground drainage, sewage and other scenarios, it often needs to withstand multiple external forces such as soil pressure, ground load and media impact. Due to the poor uniformity of stress distribution of a circular cross-section, under asymmetrical loads, the reinforcing ribs are prone to local stress concentration, especially when the part of the reinforcing rib furthest from the main pipe body is compressed. The opposite side usually directly compresses the main pipe body, and the annular wall of the hollow structure may dent or crack in the stress concentration area, thus causing the reinforcing rib to lose its supporting function and accelerating the deformation of the main pipe body. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a high trapezoidal porous high cavity reinforced structural wall tube.

[0005] The technical solution of this utility model is as follows:

[0006] A high trapezoidal porous high cavity reinforced structural wall pipe includes a pipe body, the outer end face of which is spirally wound to form a reinforcing rib, which is hollow and the cross-sectional shape is set as trapezoidal;

[0007] The outer end face of the reinforcing rib is spirally wound to form a reinforcing tube, which is a hollow tubular structure with a circular cross-section. The outer diameter of the reinforcing tube is not greater than the maximum width of the reinforcing rib.

[0008] A reinforcing frame is provided inside the cavity of the reinforcing rib, and it is tightly attached to the inner wall of the reinforcing rib. A corrugated pipe is provided inside the reinforcing tube, and it is tightly attached to the inner wall of the reinforcing tube.

[0009] To improve the stability of the connection between the reinforcing tube and the reinforcing rib, the cross-sectional shape of the reinforcing rib is an isosceles trapezoid, with the bottom side closest to the main body of the pipe being the long side, and the end face that contacts the reinforcing tube is set to an arc shape that matches the outer end face of the reinforcing tube.

[0010] 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.

[0011] 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.

[0012] To enhance the synergistic support of the reinforcing tube and the reinforcing rib, so that when subjected to lateral force, the middle position of the reinforcing rib cooperates with the reinforcing rib to provide support, the midline length of the isosceles trapezoid formed by the outer diameter of the reinforcing tube and the cross-section of the reinforcing rib is consistent.

[0013] To improve the support force along the radial direction of the pipeline body, the reinforcing frame is provided with reinforcing ribs that support the upper and lower walls of the reinforcing frame and are integrally formed with the reinforcing frame.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] To improve the stability of the reinforcing rib and provide support to its sides, 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.

[0018] The beneficial effects of this utility model are as follows: This utility model is a high trapezoidal porous high cavity reinforced structural wall pipe. Compared with the existing circular reinforcing ribs, which are prone to dents and cracks under asymmetric loads, this structural wall pipe, through the design of trapezoidal cross-section reinforcing ribs, utilizes the advantages of uniform stress distribution and strong lateral pressure resistance of the trapezoidal structure to efficiently transfer external forces such as soil pressure and ground load to the main body of the pipe, avoiding local stress concentration. At the same time, the circular reinforcing pipe wrapped around the reinforcing ribs and the internal reinforcing frame form a dual support system. The reinforcing pipe can further buffer external impacts, while the reinforcing frame provides rigid support for the inner wall of the reinforcing ribs. The synergistic effect of the two significantly improves the overall ring stiffness and deformation resistance of the pipe, and can stably cope with the multiple external forces under complex working conditions such as municipal drainage and sewage discharge, delaying the deformation of the main body of the pipe.

[0019] The reinforcing rib adopts an isosceles trapezoidal structure and the contact end with the reinforcing tube is designed with a matching arc surface. This not only ensures the fit between the reinforcing rib and the reinforcing tube and reduces stress loss caused by gaps, but also optimizes the stress transmission path through the combination of trapezoidal and circular cross sections. The reinforcing ribs and the one-piece molding design inside the reinforcing frame further improve the bending strength of the reinforcing ribs. The stress relief holes and wavy sides on the ribs can effectively release the internal stress generated during the pipe forming and stress process, and avoid structural cracking due to stress accumulation. Attached Figure Description

[0020] 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.

[0021] In the attached diagram:

[0022] Figure 1 This is a cross-sectional view of the overall scheme;

[0023] Figure 2 This is a magnified view of point A;

[0024] Figure 3 A schematic diagram of another embodiment of the reinforcement frame;

[0025] Figure 4 This is a schematic diagram of the overall structure of this solution;

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. Pipe body; 2. Reinforcing rib; 3. Reinforcing pipe; 4. Reinforcing frame; 5. Corrugated pipe; 6. Reinforcing rib; 7. Stress relief hole; 8. Base plate; 9. Limiting protrusion; 10. First cavity; 11. Second cavity; 12. Silicon core layer. Detailed Implementation

[0028] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0029] Example

[0030] As mentioned in the background art, the reinforcing ribs 2 on the outside of existing spiral pipes are usually designed as circular structures for easy winding. However, the uniformity of force distribution of circular structures is poor. When subjected to compression or impact, local deformation is more obvious. In particular, when the outermost reinforcing rib 2 is subjected to force, the radial force generated causes the reinforcing rib 2 to deform significantly, which can seriously damage the pipe body 1. Therefore, the inventors have made improvements on the existing pipe and designed a new type of reinforcing structure, which will be explained in detail below with reference to the figures.

[0031] This embodiment provides a high trapezoidal porous high-cavity reinforced structural wall tube. See [link to previous embodiment]. Figures 1-4 This structural wall pipe uses the main pipe body 1 as the core flow carrier. The main pipe body 1 is made of high-density polyethylene through extrusion molding, possessing excellent corrosion resistance, aging resistance, and media tolerance. Different inner diameter specifications can be designed according to actual application scenarios (such as drainage, sewage, and cable protection) to meet different flow rates or protection requirements. Furthermore, a silicon core layer 12 is installed inside the main pipe body 1. The silicon core layer 12 is used to reduce the flow resistance of fluid within the main pipe body 1, improve conveying efficiency, and enhance the wear resistance and scratch resistance of the inner wall of the pipe, extending the service life of the pipe. Reinforcing ribs 2 are fixed to the outer end face of the main pipe body 1 through a spiral winding process. The reinforcing ribs 2 are made of high-strength composite material and are hollow in shape. Their cross-sectional shape is designed as an isosceles trapezoid. Compared with the traditional circular cross-section, this trapezoidal structure can more evenly distribute the load under stress, avoiding local stress concentration.

[0032] In this embodiment, combined with Figure 2 The dimensions of the isosceles trapezoidal reinforcing rib 2 are designed with full consideration of stress rationality: the bottom edge closest to the pipe body 1 is the long side, with a larger contact area with the outer surface of the pipe body 1, which can more stably transfer external loads to the pipe body 1; the top edge furthest from the pipe body 1 contacts the reinforcing tube 3, and the top edge end face is processed into an arc shape that matches the outer end face of the reinforcing tube 3, ensuring that the reinforcing tube 3 and the reinforcing rib 2 fit tightly and avoiding uneven local stress caused by contact gaps. A reinforcing frame 4 is also provided in the hollow cavity of the reinforcing rib 2. The reinforcing frame 4 is tightly fixed to the inner wall of the reinforcing rib 2, which can not only enhance the structural strength of the reinforcing rib 2 itself, but also provide an installation foundation for the subsequent internal support structure.

[0033] Based on the above structure, a base plate 8 is pre-spirally wound onto the outer surface of the pipe body 1 and fixed to the outer surface of the pipe body 1 by hot-melt method. The reinforcing rib 2 is wound around the outside of the base plate 8 and hot-melt welded to the base plate 8. A limiting protrusion 9 is integrally formed on one side of the upper end face of the base plate 8. The limiting protrusion 9 extends along the length direction of the base plate 8. When the reinforcing rib 2 is wound on the base plate 8, the limiting protrusion 9 abuts against one side of the bottom end face of the reinforcing rib 2. The limiting protrusion 9 has a triangular cross section, which supports the bottom end face of the reinforcing rib 2 and can effectively limit the lateral displacement of the reinforcing rib 2 during the winding process, ensuring that the winding trajectory of the reinforcing rib 2 is regular. At the same time, when the pipe is subjected to axial force, the limiting protrusion 9 can transfer part of the force and improve the axial tensile resistance of the overall structure.

[0034] In this embodiment, a reinforcing tube 3 is also fixed to the outer end face of the reinforcing rib 2 by a spiral winding process. The winding direction of the reinforcing tube 3 is consistent with 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, forming an inseparable whole. The reinforcing tube 3 has a hollow structure. In order to improve the compression resistance of the second cavity 11, a corrugated tube 5 is also provided inside the reinforcing tube 3. The corrugated tube 5 is made of high-strength plastic material, and its outer wall is completely attached to the inner wall of the reinforcing tube 3. The corrugated structure of the corrugated tube 5 can generate elastic deformation when the pipe is subjected to radial pressure, and absorb part of the pressure energy through deformation. At the same time, it can quickly return to its original shape after the pressure is removed, avoiding permanent deformation of the reinforcing tube 3 due to excessive compression. Through the design of the reinforcing tube 3 and the corrugated tube 5, at least two cavity structures are formed with the reinforcing rib 2. First, it can provide sufficient support for the top position of the reinforcing rib 2, bear it when it is under force, and reduce its deformation effect. It can also work with the reinforcing rib 2 to bear the lateral force at the same time, providing double protection for the main body of the pipe 1.

[0035] It should be noted that the outer diameter of the reinforcing tube 3 is no greater than the maximum transverse length of the reinforcing rib 2 cross-section. This ensures that the reinforcing tube 3, after being wound, will not exceed the overall outline of the reinforcing rib 2, avoiding excessive radial force and preventing the reinforcing tube 3 from losing its supporting function. In this design, the outer diameter of the reinforcing tube 3 is consistent with the midline length of the isosceles trapezoid of the reinforcing rib 2 cross-section, optimizing the synergistic supporting effect of the reinforcing tube 3 and the reinforcing rib 2 under lateral force. When the pipeline is subjected to lateral force, the reinforcing tube 3 and the reinforcing rib 2 can more effectively resist deformation together, improving the pipeline's ring stiffness and deformation resistance. At the same time, the outer diameter of the reinforcing tube 3 is controlled between 4 / 5 and 5 / 6 of the height of the reinforcing rib 2. This size ratio ensures that the volume of the second cavity 11 provides sufficient support while preventing the reinforcing tube 3 from being too tall, which would lead to instability of the center of gravity.

[0036] As an optional implementation method of this embodiment, combined with Figure 3, in order to improve the support effect of the reinforcing rib 2 in the radial direction of the pipe body 1, a reinforcing rib 6 is longitudinally arranged inside the reinforcing frame 4. The reinforcing rib 6 is integrally formed with the reinforcing frame 4, and its upper and lower ends are respectively connected to the upper and lower walls of the reinforcing frame 4, forming a "work" - shaped support structure. This reinforcing rib 6 evenly divides the hollow area inside the reinforcing rib 2, forming two first cavities 10. The two first cavities 10 are distributed on both sides of the reinforcing rib 6 and jointly bear the external pressure load. And a second cavity 11 is formed inside the reinforcing pipe 3. Together with the two first cavities 10 inside the reinforcing rib 2 in the cross - section direction, they form a "pin" - shaped structure. The two first cavities 10 are located below and are distributed left and right, and the second cavity 11 is located directly above the two first cavities 10. The three cooperate with each other to form a stable triangular stress system. This "pin" - shaped structure can evenly transfer the external load to the three cavities, greatly reducing the stress burden on a single cavity, making the stress distribution more uniform and significantly enhancing the anti - deformation ability.

[0037] Based on the above structure, the structural design of the reinforcing rib 6 is also optimized. One side surface of it is designed as a wavy shape, and the other side is a flat shape. The wavy surface can buffer part of the impact force through the deformation of the wavy structure when bearing external forces, and the flat surface ensures the stable transmission of the supporting force. In addition, a plurality of stress - relief holes 7 are opened inside the reinforcing rib 6. These stress - relief holes 7 are evenly arranged along the thickness direction of the reinforcing rib 6 and are in a ring - shaped through - hole shape. When the pipe is subjected to external uneven loads, the stress - relief holes 7 can effectively disperse the locally concentrated stress and prevent the reinforcing rib 6 from breaking due to excessive stress.

Claims

1. A high trapezoidal porous high-cavity reinforced structural wall pipe, comprising a pipe body (1), characterized in that, The outer end face of the pipe body (1) is spirally wound with reinforcing ribs (2), which are hollow and have a trapezoidal cross-sectional shape; The outer end face of the reinforcing rib (2) is spirally wound to form a reinforcing tube (3). The reinforcing tube (3) is a hollow tubular structure with a circular cross-section. The outer diameter of the reinforcing tube (3) is not greater than the maximum width of the reinforcing rib (2). A reinforcing frame (4) is provided inside the cavity of the reinforcing rib (2), and it is closely attached to the inner wall of the reinforcing rib (2). A corrugated pipe (5) is provided inside the reinforcing tube (3), and it is closely attached to the inner wall of the reinforcing tube (3).

2. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 1, characterized in that, The cross-sectional shape of the reinforcing rib (2) is an isosceles trapezoid, and the bottom side near the main body of the pipe (1) is the long side. The end face that contacts the reinforcing pipe (3) is set to an arc shape that matches the outer end face of the reinforcing pipe (3).

3. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 2, characterized in that, The maximum distance between the reinforcing pipe (3) and the main body of the pipe (1) is not less than 1 / 10 of the inner diameter of the main body of the pipe (1).

4. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 2, characterized in that, The outer diameter of the reinforcing tube (3) is 4 / 5 to 5 / 6 of the height of the reinforcing rib (2).

5. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 4, characterized in that, The length of the midline of the isosceles trapezoid presented by the outer diameter reinforcing rib (2) of the reinforcing tube (3) is consistent.

6. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 1, characterized in that, The reinforcing frame (4) is provided with reinforcing ribs (6) that support the upper and lower walls of the reinforcing frame (4) and are integrally formed with the reinforcing frame (4).

7. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 6, characterized in that, Multiple stress relief holes (7) are provided in the reinforcing rib (6), and the multiple stress relief holes (7) are arranged along the thickness direction of the reinforcing rib (6).

8. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 7, characterized in that, The reinforcing rib (6) is wavy on one side and planar on the other side.

9. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 1, characterized in that, The main body of the pipe (1) is spirally wound with a base plate (8), and the reinforcing rib (2) is wound around the base plate (8) and fixed thereto.

10. The high trapezoidal porous high-cavity reinforced structural wall tube according to claim 9, characterized in that, A limiting protrusion (9) is provided on one side of the upper end face of the base plate (8), and the limiting protrusion (9) abuts against the bottom end face of the reinforcing rib (2).

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