A multi-layer composite wound pipe structure

Abstract

This utility model relates to the field of spiral wound tube technology, specifically a multi-layer composite spiral wound tube structure, including a tube body with a supporting mechanism. The supporting mechanism includes an inner annular component fixedly connected to the outer wall of the tube body. Several inner annular components are arranged in an array. An outer protective tube is fixedly connected to the side of the inner annular component away from the tube body. Several arc-shaped tubes are arranged in an array on the outer wall of the outer protective tube. An outer annular groove is provided between the arc-shaped tubes and the outer protective tube. The cavity formed by the inner annular component, the outer protective tube, and the tube body is provided with an inner annular groove. A through groove is formed on the inner annular component. This utility model, through the reinforcing rib structure formed by the inner annular component and the outer protective tube, and the arc-shaped tubes dispersing external pressure, achieves a point-line-surface mechanical linkage, effectively improving the overall stability and deformation resistance of the tube body, enhancing its load-bearing capacity, and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of spiral wound tube technology, specifically a multi-layer composite spiral wound tube structure. Background Technology

[0002] High-density polyethylene corrugated pipes are characterized by their light weight, high pressure resistance, good toughness, fast construction, and long service life. Their excellent pipe wall structure design significantly reduces costs compared to other pipe structures, making them widely used in urban sewage discharge, long-distance low-pressure water transmission, and farmland irrigation projects.

[0003] Plastic-reinforced spiral corrugated pipes typically consist of an outer plastic profile and an inner pipe base strip, which are combined by winding. While this structure satisfies the requirements for lightweight properties, it also helps to improve the ring stiffness and overall load-bearing capacity of the pipe. However, in actual use, there is still a problem with the structural fit not being tight enough. That is, the connection between the plastic profile and the base strip is still insufficient in terms of overall integrity. When the corrugated pipe is buried underground, the pressure of the soil will be directly transmitted to the plastic profile through the backfill process. Since the plastic profile is usually located at the outer edge of the pipe, the stress position is more prominent, thus becoming the main pressure-bearing component and causing damage.

[0004] In view of this, we propose a multi-layer composite wound tube structure. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer composite spiral pipe structure, which solves the problem that plastic reinforced spiral corrugated pipes are prone to damage due to the lack of overall integrity between the plastic profile and the bottom strip when subjected to underground stress, as the pressure points protrude.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-layer composite wound tube structure includes a tube body with a supporting mechanism. The supporting mechanism includes an inner annular member fixedly connected to the outer wall of the tube body. Several inner annular members are arranged in an array. An outer protective tube is fixedly connected to the side of the inner annular member away from the tube body. Several arc-shaped tubes are arranged in an array on the outer wall of the outer protective tube. An outer annular groove is provided between the arc-shaped tubes and the outer protective tube. An inner annular groove is provided in the cavity formed by the inner annular member, the outer protective tube, and the tube body. A through groove is provided on the inner annular member. A winding mechanism is provided on the tube body to enhance the overall structural strength and rigidity of the tube body.

[0008] Preferably, the winding mechanism includes an inner connecting groove, which is formed on the inner annular part and the outer protective tube. A spiral support tube is fixedly connected to the inner connecting groove, and annular support tubes are fixedly connected to both ends of the spiral support tube.

[0009] Preferably, the inner walls of the spiral support tube and the annular support tube are interconnected, and an inner trapezoidal hollow groove is formed on the inner wall of the spiral support tube and the annular support tube.

[0010] Preferably, the groove is provided with an arc-shaped support block, and the outer wall of the outer protective tube is provided with anti-slip texture.

[0011] Preferably, the arc-shaped pipe is made of an elastic deformable material, and sound-absorbing material is provided in the inner annular groove.

[0012] Preferably, the inner and outer annular grooves are filled with inert gas, and the inner annular groove is provided with a liquid buffer medium.

[0013] Preferably, the inner trapezoidal hollow groove is designed as a multi-cavity structure, and two annular support tubes are symmetrically arranged.

[0014] By employing the above technical solution, this utility model provides a multi-layer composite wound tube structure. It possesses at least the following beneficial effects:

[0015] 1. This utility model achieves a mechanical linkage of points, lines, and surfaces by using a reinforcing rib structure composed of an inner annular component and an outer protective tube, as well as an arc-shaped tube to disperse external pressure. This effectively improves the overall stability and deformation resistance of the tube body, enhances its load-bearing capacity, and extends its service life.

[0016] 2. By setting up interconnected inner and outer annular grooves and forming a dynamic airflow cavity, and cooperating with the force transmission of the spiral support tube, this utility model realizes stress buffering and uniform dispersion between multi-layer structures, significantly reduces the risk of local stress concentration and deformation failure, and improves the impact resistance and safety of the structure. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-section of the outer and inner protective pipes in this utility model;

[0020] Figure 3 This is a structural schematic diagram of the cross-section of the outer protective tube in this utility model;

[0021] Figure 4This is a schematic diagram of the structure of the groove in this utility model;

[0022] Figure 5 This is a schematic diagram of the spiral support tube in this utility model;

[0023] Figure 6 This is a structural schematic diagram of the cross-section of the spiral support tube and the annular support tube disc in this utility model.

[0024] In the figure: 1. Pipe body; 2. Support mechanism; 21. Inner annular part; 22. Outer protective pipe; 23. Arc-shaped pipe fitting; 24. Outer annular groove; 25. Inner annular groove; 26. Through groove; 3. Winding mechanism; 31. Inner connecting groove; 32. Spiral support pipe; 33 and annular support pipe; 34. Inner trapezoidal hollow groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 6As shown, this utility model provides a technical solution: a multi-layer composite wound tube structure, including a tube body 1, a support mechanism 2 provided on the tube body 1, the support mechanism 2 including: an inner annular member 21, the inner annular member 21 being fixedly connected to the outer wall of the tube body 1, a plurality of inner annular members 21 being arranged in an array, an outer protective tube 22 being fixedly connected to the side of the inner annular member 21 away from the tube body 1, a plurality of arc-shaped tube members 23 being arranged in an array on the outer wall of the outer protective tube 22, an outer annular groove 24 being provided between the arc-shaped tube members 23 and the outer protective tube 22, the inner annular member 21, the outer protective tube 22 and the outer protective tube 22 being connected in an array. The cavity formed by the tube body 1 is provided with an inner annular groove 25, and a through groove 26 is opened on the inner annular component 21 for communication between the inner annular grooves 25. The inner annular component 21 and the outer protective tube 22 form a reinforcing rib structure. The inner annular component 21 is fixed to the outer wall of the tube body 1, and the outer protective tube 22 is fixedly connected to the side of the inner annular component 21 away from the tube body. The two are connected to form an integral unit. When subjected to external force, the arc-shaped tube component 23 will first disperse the pressure to both sides, forming a continuously distributed support point. When external pressure or shear force is applied, the arc-shaped tube component 23 can guide the force to the outer protective tube 22. 2. The force is further transferred to the inner annular component 21, thereby realizing a mechanical linkage structure combining points, lines, and surfaces, improving the overall stability and resistance to deformation, realizing mechanical linkage between the inner and outer layers, enhancing the overall load-bearing capacity, and when the arc-shaped tube 23 is squeezed, the air in the outer annular groove 24 at that location is first squeezed, playing a first-level buffering and energy absorption role, which can delay the time of impact force transmission to the deep structure and reduce the instantaneous load, and then the outer protective tube 22 squeezes the inner annular groove 25, and the inner annular groove 25 is interconnected through the groove 26, and the outer protective tube 22 continuously exerts external force. When in use, a certain amount of elastic deformation will occur, and this deformation will be transmitted inward to the outer protective tube 22 and squeeze the inner annular groove 25. Since the inner annular grooves 25 are interconnected through grooves 26, a dynamic internal "airflow cavity" can be formed, so that the internal pressure fluctuation caused by pressure at a certain position can be diffused and transmitted between the grooves, similar to the connecting cavity design in an airbag buffer system or hydraulic system, effectively avoiding stress concentration in local structures due to short-term high pressure; the tube body 1 is provided with a winding mechanism 3, which is used to enhance the overall structural strength and rigidity of the tube body 1.

[0027] The winding mechanism 3 includes an inner connecting groove 31, which is formed on the inner annular part 21 and the outer protective tube 22. A spiral support tube 32 is fixedly connected to the inner connecting groove 31, and annular support tubes 33 are fixedly connected to both ends of the spiral support tube 32. The spiral support tube 32 is set on the inner annular part 21 and the outer protective tube 22, which means that the winding mechanism 3, as a connector, effectively integrates the inner and outer structures together. When external forces, such as ground loads or lateral pressure, first act on the support mechanism 2, a force transmission path can be formed to the inner annular part 21 through the spiral support tube 32. When earth pressure, vehicle load, etc. first act on the arc-shaped pipe 23, outer protective pipe 22, and inner annular component 21, the force acts along the normal compression direction, producing axial or radial deformation. This deformation is sensed and follows the deformation of the spiral support pipe 32 fixed on it. Since it is fixedly connected to the inner annular component 21, the deformation or force will be transmitted from the outside to the inside along the spiral path, thereby synchronously transmitting the deformation or force of the outer protective pipe 22 to the other inner annular components 21, so that the inner and outer structures form a force linkage, reducing stress concentration and avoiding deformation and damage of the single-layer structure due to isolated force.

[0028] The inner walls of the spiral support pipe 32 and the annular support pipe 33 are interconnected. An inner trapezoidal hollow groove 34 is formed on the inner wall of both pipes. This hollow groove design effectively reduces material usage and overall weight while ensuring structural strength, facilitating construction and transportation. An arc-shaped support block is installed on the groove 26 to maintain its passage and prevent it from being blocked during compression. The outer wall of the outer protective pipe 22 has anti-slip textures to enhance mechanical bonding with the backfill soil. The arc-shaped pipe fitting 23 is made of elastic deformable material to enhance pressure dispersion. Sound-absorbing material is installed in the inner annular groove 25 to reduce noise during fluid transport. Inert gas is filled into the inner annular groove 25 and the outer annular groove 24 to extend the pipe's service life. A liquid buffer medium is installed in the inner annular groove 25 to improve energy absorption. The inner trapezoidal hollow groove 34 is designed as a multi-cavity structure to further reduce weight while maintaining strength. Two annular support pipes 33 are symmetrically arranged to form a closed annular support system.

[0029] In use, the multi-layer composite spiral tube structure of this utility model forms a reinforcing rib structure with the inner annular component 21 and the outer protective tube 22. The inner annular component 21 is fixed to the outer wall of the tube body 1, and the outer protective tube 22 is fixedly connected to the side of the inner annular component 21 away from the tube body. The two are connected to form an integral unit. When subjected to external force, the arc-shaped tube component 23 will first disperse the pressure to both sides, forming continuously distributed support points. When external pressure or shear force is applied, the arc-shaped tube component 23 can guide the force to the outer protective tube 22 and further transmit it to the inner annular component 21, thereby realizing a mechanical linkage structure of point, line and surface combination, improving the overall stability and deformation resistance, realizing mechanical linkage between the inner and outer layers, enhancing the overall load-bearing capacity, and when the arc-shaped tube component 23 is squeezed, the outer annular component 21 is first squeezed to form a reinforcing rib structure. The air inside the groove 24 is compressed, which acts as the first buffer and absorbs energy, delaying the time for the impact force to be transmitted to the deeper structure and reducing the instantaneous load. Then, the outer protective tube 22 compresses the inner annular groove 25, and the inner annular grooves 25 are interconnected through the groove 26. Under the continuous action of external force, the outer protective tube 22 will undergo a certain elastic deformation, which will be transmitted inward to the outer protective tube 22 and compress the inner annular groove 25. Since the inner annular grooves 25 are interconnected through the groove 26, a dynamic internal "air flow cavity" can be formed, so that the internal pressure fluctuation caused by pressure at a certain position can be diffused and transmitted between the grooves, similar to the connecting cavity design in the airbag buffer system or hydraulic system, effectively avoiding stress concentration in the local structure due to short-term high pressure.

[0030] The spiral support tube 32 is installed on the inner annular part 21 and the outer protective tube 22, which means that the winding mechanism 3 effectively integrates the inner and outer structures as a connector. When external forces such as ground load or lateral pressure act on the support mechanism 2 first, a force transmission path can be formed through the spiral support tube 32 to the inner annular part 21. When external forces such as soil pressure or vehicle load act on the arc-shaped tube 23, the outer protective tube 22, and the inner annular part 21 first, the force acts in the normal compression direction, producing axial or radial deformation. This deformation is sensed and follows the deformation of the spiral support tube 32 fixed on it. Since it is fixedly connected to the inner annular part 21, the deformation or force will be transmitted from the outside to the inside along the spiral path, thereby synchronously transmitting the deformation or force of the outer protective tube 22 to the other inner annular parts 21, so that the inner and outer structures form a force linkage, reducing stress concentration and avoiding deformation and damage of the single-layer structure due to isolated force.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite wound tube structure, comprising the tube body (1), characterized in that: The pipe body (1) is provided with a support mechanism (2) to improve the overall stability and deformation resistance of the pipe body. The support mechanism (2) includes: An inner annular component (21) is fixedly connected to the outer wall of the pipe body (1). Several inner annular components (21) are arranged in an array. An outer protective pipe (22) is fixedly connected to the side of the inner annular component (21) away from the pipe body (1). Several arc-shaped pipe fittings (23) are arranged in an array on the outer wall of the outer protective pipe (22). An outer annular groove (24) is provided between the arc-shaped pipe fittings (23) and the outer protective pipe (22). An inner annular groove (25) is provided in the cavity formed by the inner annular component (21), the outer protective pipe (22) and the pipe body (1). A through groove (26) is opened on the inner annular component (21). The tube body (1) is provided with a winding mechanism (3), which is used to enhance the overall structural strength and rigidity of the tube body.

2. A multi-layer composite spool pipe structure according to claim 1, characterized in that: The winding mechanism (3) includes an inner connecting groove (31), which is formed on the inner annular part (21) and the outer protective tube (22). A spiral support tube (32) is fixedly connected to the inner connecting groove (31), and an annular support tube (33) is fixedly connected to both ends of the spiral support tube (32).

3. A multi-layer composite spool pipe structure according to claim 2, characterised in that: The inner walls of the spiral support tube (32) and the annular support tube (33) are interconnected, and an inner trapezoidal hollow groove (34) is provided on the inner walls of the spiral support tube (32) and the annular support tube (33).

4. A multi-layer composite spool pipe structure according to claim 3, characterized in that: An arc-shaped support block is provided on the through groove (26), and the outer wall of the outer protective tube (22) is provided with anti-slip texture.

5. A multi-layer composite spool pipe construction according to claim 3, characterised in that: The arc-shaped pipe fitting (23) is made of elastic deformable material, and the inner annular groove (25) is filled with sound-absorbing material.

6. A multi-layer composite spool pipe construction according to claim 3, wherein: The inner annular groove (25) and the outer annular groove (24) are filled with inert gas, and the inner annular groove (25) is provided with a liquid buffer medium.

7. A multi-layer composite spool pipe construction according to claim 3, wherein: The inner trapezoidal hollow groove (34) is designed as a multi-cavity structure, and two annular support tubes (33) are symmetrically arranged.

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