High-strength, pressure-resistant tubular structure

Abstract

This utility model discloses a high-strength, pressure-resistant pipe structure, comprising an inner non-toxic layer, a middle reinforcing layer, an outer heat-resistant layer, and a wear-resistant layer. The inner non-toxic layer is fixed to the inner side of the middle reinforcing layer, and the middle reinforcing layer is fixed to the inner side of the outer heat-resistant layer. Inner reinforcing ribs are fixed to the inner side of the inner non-toxic layer, and these ribs are spirally distributed along the axial direction of the inner non-toxic layer on its inner wall. Both the inner non-toxic layer and the inner reinforcing ribs are made of polyethylene, while the middle reinforcing layer is made of polyvinyl chloride (PVC) and has a honeycomb structure. Corrugated reinforcing ribs are fixed to the outer side of the outer heat-resistant layer. This utility model, through its triple composite structure, spiral inner reinforcing ribs, and honeycomb structure, achieves higher overall strength and excellent heat resistance and deformation resistance, making it less prone to bending.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a high-strength, pressure-resistant pipe structure. Background Technology

[0002] Plastic pipes are generally made from synthetic resin, namely polyester, with the addition of stabilizers, lubricants, plasticizers, etc., and are processed by extrusion in a pipe-making machine using a "plastic" method. They are mainly used for piping in water supply systems, drainage, ventilation, and sewage systems in buildings, underground drainage systems, rainwater pipes, and conduits for electrical wiring installations.

[0003] Plastic pipes are among the most commonly used pipes in daily life. However, most existing plastic pipes are single-layer or double-layer structures, with low overall compressive strength, making them easily bent, and their heat resistance is insufficient, leading to thermal deformation and bending. Therefore, in response to these shortcomings, there is an urgent need to develop a high-strength, compressive-resistant pipe structure with higher overall strength, good heat resistance, and resistance to bending, achieved through a triple-layer composite structure, spiral internal reinforcing ribs, and honeycomb structure. This would overcome the deficiencies in current applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength, pressure-resistant tube structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The high-strength, pressure-resistant pipe structure includes an inner non-toxic layer, a middle reinforcing layer, an outer heat-resistant layer, and a wear-resistant layer. The inner non-toxic layer is fixed to the inner side of the middle reinforcing layer, and the middle reinforcing layer is fixed to the inner side of the outer heat-resistant layer. Inner reinforcing ribs are fixed to the inner side of the inner non-toxic layer, and these ribs are spirally distributed along the axial direction of the inner non-toxic layer on its inner wall. Both the inner non-toxic layer and the inner reinforcing ribs are made of polyethylene. Polyethylene is non-toxic, odorless, chemically stable, and possesses good flexibility and impact resistance. As an inner layer, it ensures safe contact with the transported medium while effectively resisting scouring and impact from the medium flow, preventing wear on the inner wall of the pipe. Furthermore, the spiral inner reinforcing ribs 101 act like a "skeleton" coiled inside the pipe, effectively enhancing the circumferential pressure resistance of the pipe. When the pipe is subjected to external pressure, the spiral ribs can distribute the pressure across the entire circumference of the pipe, preventing further damage. In case of local deformation or collapse, the intermediate reinforcing layer is made of polyvinyl chloride (PVC) and has a honeycomb structure. PVC has high hardness, high strength, and strong chemical corrosion resistance. As an intermediate layer, it can provide strong structural support for the pipeline, enhance the pipeline's pressure resistance and resistance to external environmental corrosion, and ensure the pipeline's stability in complex external environments. Moreover, the honeycomb structure 201 has efficient mechanical properties. Its unique hexagonal or other regular geometric shapes can evenly distribute external pressure to various parts. When the pipeline is subjected to external pressure or internal fluid pressure, the honeycomb structure can act like a tiny "force transmission network" to quickly transmit and disperse the pressure, effectively avoiding local stress concentration in polyethylene, thereby significantly improving compressive strength and deformation resistance, greatly reducing deformation, and enhancing the overall structural stability of the pipeline. Corrugated reinforcing ribs are fixed on the outer side of the outer heat-resistant layer.

[0007] Preferably, both the outer heat-resistant layer and the corrugated reinforcing ribs are made of polypropylene.

[0008] Preferably, the corrugated reinforcing ribs are distributed in a sinusoidal curve along the axial direction of the outer heat-resistant layer. The corrugated structure can significantly improve the pressure resistance of the pipeline without adding too much material. When the pipeline is subjected to pressure, the corrugated structure will undergo elastic deformation, absorbing energy through deformation, thereby alleviating the impact of external pressure on the pipeline. In addition, the corrugated structure can also increase the contact area between the pipeline and the external environment, improving the stability of the pipeline.

[0009] Preferably, the corrugated reinforcing ribs protrude outwards by 2 mm.

[0010] Preferably, the outer heat-resistant layer is coated with a wear-resistant layer on its outer side.

[0011] Preferably, the wear-resistant layer is formed by epoxy resin spraying.

[0012] The beneficial effects of this utility model are as follows: The high-strength, pressure-resistant pipe structure, when in use, utilizes an inner non-toxic polyethylene layer, ensuring a non-toxic, odorless, and chemically stable internal transport environment with excellent flexibility and impact resistance. The spiral-shaped inner reinforcing ribs act like a "skeleton" within the pipe, effectively enhancing its circumferential compressive strength. When the pipe is subjected to external pressure, the spiral ribs distribute the pressure across the entire circumference, preventing localized deformation or collapse. Furthermore, the PVC intermediate reinforcing layer and honeycomb structure further strengthen the overall structure. The corrugated reinforcing ribs increase the strength of the outer heat-resistant layer, improving overall heat resistance and creep resistance, reducing thermal deformation at high temperatures, and thus enhancing the overall strength of the pipe. In summary, this utility model, through its triple-layer composite structure, spiral-shaped inner reinforcing ribs, and honeycomb structure, achieves higher overall strength, excellent heat resistance, and resistance to bending. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is an internal sectional view of the present invention.

[0015] Figure 3 This is a top view of the outer heat-resistant layer in this utility model.

[0016] Legend:

[0017] 1. Inner non-toxic layer; 101. Inner reinforcing ribs; 2. Middle reinforcing layer; 201. Honeycomb structure; 3. Outer heat-resistant layer; 301. Corrugated reinforcing ribs; 4. Wear-resistant layer. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-3In this embodiment of the invention, the high-strength, pressure-resistant pipe structure includes an inner non-toxic layer 1, a middle reinforcing layer 2, an outer heat-resistant layer 3, and a wear-resistant layer 4. The inner non-toxic layer 1 is fixed to the inner side of the middle reinforcing layer 2, and the middle reinforcing layer 2 is fixed to the inner side of the outer heat-resistant layer 3. An inner reinforcing rib 101 is fixed to the inner side of the inner non-toxic layer 1. The inner reinforcing rib 101 is spirally distributed along the axial direction of the inner non-toxic layer 1 on the inner wall of the inner non-toxic layer 1. Both the inner non-toxic layer 1 and the inner reinforcing rib 101 are made of polyethylene. Polyethylene is non-toxic, odorless, chemically stable, and has good flexibility and impact resistance. As an inner layer, it can ensure safe contact with the conveying medium while effectively resisting the medium. The scouring and impact caused by the flow of fluids prevents wear on the inner wall of the pipe. Furthermore, the spiral internal reinforcing ribs 101, like a "skeleton" coiled inside the pipe, effectively enhance the circumferential compressive strength of the pipe. When the pipe is subjected to external pressure, the spiral ribs can distribute the pressure across the entire circumference of the pipe, preventing local deformation or collapse. The intermediate reinforcing layer 2 is made of polyvinyl chloride (PVC) and has a honeycomb structure 201. PVC has high hardness, high strength, and strong chemical corrosion resistance. As an intermediate layer, it provides strong structural support for the pipe, enhancing its compressive strength and resistance to external environmental corrosion, ensuring the stability of the pipe in complex external environments. Furthermore, the honeycomb structure 201 possesses highly efficient mechanical properties. Its unique hexagonal or other regular geometric shapes can evenly distribute external pressure to various parts. When the pipeline is subjected to external pressure or internal fluid pressure, the honeycomb structure can act like a tiny "force transmission network," rapidly transmitting and dispersing the pressure, effectively preventing localized stress concentration in polyethylene. This significantly improves compressive strength and deformation resistance, greatly reducing deformation and enhancing the overall structural stability of the pipeline. A corrugated reinforcing rib 301 is fixed to the outer side of the outer heat-resistant layer 3. The corrugated reinforcing rib 301 protrudes outward by 2 mm and follows a sinusoidal curve along the axial direction of the outer heat-resistant layer 3. The corrugated structure significantly improves the pressure resistance of the pipeline without adding too much material. When the pipeline is under pressure, the corrugated structure undergoes elastic deformation, absorbing energy through deformation and thus mitigating the impact of external pressure on the pipeline. In addition, the corrugated structure can increase the contact area between the pipeline and the external environment, improving the pipeline's stability. The outer heat-resistant layer 3 and the corrugated reinforcing ribs 301 are both made of polypropylene. Polypropylene has excellent heat resistance and creep resistance. Using polypropylene for the outer layer enables the pipeline to maintain good shape stability in high-temperature environments, avoiding pipeline deformation due to temperature changes, and also resisting the aging effects of external factors such as ultraviolet rays on the pipeline.

[0021] The outer heat-resistant layer 3 is coated with a wear-resistant layer 4, which is made of epoxy resin to improve the overall wear resistance.

[0022] Working principle: This high-strength, pressure-resistant pipe structure, when in use, features an inner non-toxic polyethylene layer 1, ensuring the internal transport environment is non-toxic, odorless, and chemically stable, while also possessing good flexibility and impact resistance. The spiral-shaped inner reinforcing ribs 101 act like a "skeleton" coiled inside the pipe, effectively enhancing its circumferential pressure resistance. When the pipe is subjected to external pressure, the spiral ribs can distribute the pressure across the entire circumference of the pipe, preventing local deformation or collapse. The overall strength is further enhanced by the PVC intermediate reinforcing layer 2 and the honeycomb structure 201. The corrugated reinforcing ribs 301 increase the strength of the outer heat-resistant layer 3, improving overall heat resistance and creep resistance, reducing thermal deformation at high temperatures, and thus enhancing the overall strength of the pipe.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength pressure-resistant pipe body structure, characterized by comprising: It includes an inner non-toxic layer (1), a middle reinforcing layer (2), an outer heat-resistant layer (3), and a wear-resistant layer (4). The inner non-toxic layer (1) is fixed to the inner side of the middle reinforcing layer (2), and the middle reinforcing layer (2) is fixed to the inner side of the outer heat-resistant layer (3). An inner reinforcing rib (101) is fixed to the inner side of the inner non-toxic layer (1). The inner reinforcing rib (101) is spirally distributed on the inner wall of the inner non-toxic layer (1) along the axial direction of the inner non-toxic layer (1). The inner non-toxic layer (1) and the inner reinforcing rib (101) are both made of polyethylene. The middle reinforcing layer (2) is made of polyvinyl chloride. A honeycomb structure (201) is provided in the middle reinforcing layer (2). A corrugated reinforcing rib (301) is fixed to the outer side of the outer heat-resistant layer (3).

2. The high strength, pressure resistant tubular body structure of claim 1, wherein, The outer heat-resistant layer (3) and the corrugated reinforcing ribs (301) are both made of polypropylene.

3. The high strength, pressure resistant tubular body structure of claim 2, wherein, The corrugated reinforcing ribs (301) are distributed in a sinusoidal curve along the axial direction of the outer heat-resistant layer (3).

4. The high strength, pressure resistant tubular body structure of claim 2, wherein, The corrugated reinforcing rib (301) protrudes outward by 2 mm.

5. The high strength, pressure resistant tubular body structure of claim 1, wherein, The outer heat-resistant layer (3) is coated with a wear-resistant layer (4).

6. The high strength, pressure resistant tubular body structure of claim 5, wherein, The wear-resistant layer (4) is formed by epoxy resin spraying.

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