Engineering plastic pipe structure with high impact resistance

Abstract

The utility model discloses an engineering plastic pipe structure that resists impact, relates to engineering plastic pipe field, including plastic pipe body, and the plastic pipe body is from inside to outside by abrasion -resistant inner lining, elastic buffer layer, high strength skeleton layer and protection outer layer composition in proper order, and elastic buffer layer is attached in abrasion -resistant inner lining outside, and high strength skeleton layer is wound in elastic buffer layer outside, and protection outer layer is covered in high strength skeleton layer outside, the inner wall of abrasion -resistant inner lining evenly is equipped with several wave strips, and the outer wall of protection outer layer evenly is equipped with several reinforcing ribs, the utility model discloses through multilayer composite structure cooperation wave strip and reinforcing rib, has greatly promoted the anti -impact and wear resistance of pipeline, and its wear resistance is far superior to ordinary plastic material, and the design of wave strip has increased the anti -scouring capacity of inner wall, makes the pipeline in the long -term use process can effectively resist the scouring of water flow or medium, has reduced the wear and tear of inner wall, has prolonged the service life of pipeline.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of engineering plastic pipes, specifically to an engineering plastic pipe structure with high impact resistance. Background Technology

[0002] In the field of engineering construction, engineering plastic pipes are widely favored and widely used due to their many significant advantages, such as excellent corrosion resistance, light weight and relatively low cost. Especially in building water supply and drainage systems, whether in residential or commercial buildings, engineering plastic pipes can effectively meet the needs of water supply and drainage systems, ensuring smooth and safe water flow.

[0003] An existing technology describes an impact-resistant plastic pipe, comprising a plastic pipe body, an impact-resistant layer on the surface of the plastic pipe body, and a first anti-corrosion layer on the surface of the impact-resistant layer. This invention utilizes a combination of an impact-resistant layer, a cast iron material layer, a steel material layer, an alumina material layer, a rubber material layer, a first anti-corrosion layer, a first phenolic resin coating layer, a first epoxy resin coating layer, a first inorganic zinc-rich paint layer, a first asphalt paint layer, a second anti-corrosion layer, a second phenolic resin coating layer, a second epoxy resin coating layer, a second inorganic zinc-rich paint layer, and a second asphalt paint layer.

[0004] While the aforementioned technologies can effectively increase the strength of plastic pipes and prevent damage from external impacts, as well as corrosion, the wear resistance of the inner wall of the pipe is somewhat insufficient. During long-term use, due to continuous erosion from water flow or various media, the inner wall material is prone to gradual wear. This wear not only weakens the overall structural strength of the pipe but also further shortens its service life, thereby increasing the frequency of maintenance and replacement, causing inconvenience and economic burden to users. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an engineering plastic pipe structure with strong impact resistance to solve the technical problems mentioned in the background art.

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

[0007] An impact-resistant engineering plastic pipe structure includes a plastic pipe body, which is composed of a wear-resistant inner lining layer, an elastic buffer layer, a high-strength skeleton layer and a protective outer layer from the inside to the outside. The elastic buffer layer is attached to the outside of the wear-resistant inner lining layer, the high-strength skeleton layer is wrapped around the outside of the elastic buffer layer, and the protective outer layer is covered on the outside of the high-strength skeleton layer.

[0008] The inner wall of the wear-resistant inner lining is uniformly provided with several corrugated strips, and the outer wall of the protective outer layer is uniformly provided with several reinforcing ribs.

[0009] Specifically, in this technical solution, the wear-resistant inner lining is made of ultra-high molecular weight polyethylene wear-resistant material, the thickness of the wear-resistant inner lining is 1-3mm, and several corrugated strips are integrally set with the wear-resistant inner lining, the length of the several corrugated strips is 10-20mm, and the height of the several corrugated strips is 2-5mm.

[0010] Specifically, in this technical solution, the elastic buffer layer is made of rubber-like material, and the thickness of the elastic buffer layer is 3-5mm.

[0011] Specifically, in this technical solution, the high-strength skeleton layer is made of fiber-reinforced material, and the number of layers in the high-strength skeleton layer is 3-5.

[0012] Specifically, in this technical solution, the protective outer layer is made of high-density polyethylene material, the thickness of the protective outer layer is 2-4mm, and a number of reinforcing ribs are integrally injection molded with the protective outer layer. The number of reinforcing ribs are arranged in a trapezoidal shape, the height of the number of reinforcing ribs is 5-10mm and the bottom width is 10-15mm.

[0013] In summary, the present invention has the following beneficial effects: the wear-resistant inner lining is made of ultra-high molecular weight polyethylene wear-resistant material, which has a wear resistance far superior to that of ordinary plastic materials. In addition, the corrugated strip design increases the scouring resistance of the inner wall, enabling the pipe to effectively resist the scouring of water flow or media during long-term use, reducing the wear of the inner wall and extending the service life of the pipe.

[0014] This structure effectively enhances the corrosion resistance and overall structural stability of the pipeline, and significantly reduces maintenance costs. At the same time, the reinforcing ribs on its surface further enhance the structural strength of the protective outer layer, making the overall performance of the pipeline more stable and reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the plastic tube of this utility model;

[0016] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the cross-section of the plastic pipe of this utility model.

[0018] Figure description: 1. Plastic pipe body; 2. Wear-resistant inner lining layer; 201, corrugated strip; 3. Elastic buffer layer; 4. High-strength skeleton layer; 5. Protective outer layer; 501, reinforcing rib. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] In this embodiment, please refer to Figures 1-3 As shown, an impact-resistant engineering plastic pipe structure includes a plastic pipe body 1. The plastic pipe body 1, from the inside out, consists of a wear-resistant inner liner 2, an elastic buffer layer 3, a high-strength skeleton layer 4, and a protective outer layer 5. The inner wall of the wear-resistant inner liner 2 is uniformly provided with several corrugated strips 201, which are integrally formed with the wear-resistant inner liner 2. The length of each corrugated strip 201 is 10-20 mm, and the height of each corrugated strip 201 is 2-5 mm. The wear-resistant inner liner 2 is made of ultra-high molecular weight polyethylene. The wear-resistant material has extremely high wear resistance and good self-lubricating properties. The wear-resistant inner liner 2 has a thickness of 1-3mm. It adopts an extrusion molding process, in which ultra-high molecular weight polyethylene wear-resistant material is put into the extruder barrel, heated to about 190-230℃ to melt it, and extruded through a specific die to form a wear-resistant inner liner 2 with corrugated strips 201. The inside of the die is designed with grooves that match the shape of the corrugated strips 201. During the extrusion process, the molten raw material flows through the die to form a corrugated strip 201 structure that fits the inner wall of the die.

[0022] The elastic buffer layer 3 is bonded to the outside of the wear-resistant inner liner 2. The elastic buffer layer 3 is made of rubber-based materials, such as nitrile rubber, which has good elasticity and certain oil resistance, making it suitable as a buffer layer. The rubber raw materials are mixed evenly with vulcanizing agents, accelerators and other additives in a certain proportion. The rubber material is bonded to the outside of the wear-resistant inner liner 2 using a hot vulcanization process. The mixed rubber material is placed in a specific mold and hot vulcanized together with the wear-resistant inner liner 2. The vulcanization temperature is controlled at 150-180℃ and the vulcanization time is 10-20 minutes. During the vulcanization process, the rubber material undergoes a cross-linking reaction under high temperature and high pressure, and is firmly bonded to the wear-resistant inner liner 2. The thickness of the elastic buffer layer 3 is 3-5mm.

[0023] A high-strength skeleton layer 4 is wound around the outside of the elastic buffer layer 3. The high-strength skeleton layer 4 is made of fiber-reinforced material, such as glass fiber or carbon fiber, and is impregnated in resin. The resin acts as a binder for the fibers, so that the fiber-reinforced material forms a high-strength structure after curing. The resin-impregnated fiber-reinforced material is wound around the outside of the elastic buffer layer 3 at a certain angle and in a certain number of layers using a winding machine. The winding angle is generally set between 45° and 60°. The high-strength skeleton layer 4 has 3 to 5 layers. This allows the fiber-reinforced material to evenly distribute stress in all directions, improving the overall strength of the pipeline. After winding, it is cured to fix the fiber-reinforced material on the elastic buffer layer 3, forming the high-strength skeleton layer 4.

[0024] The protective outer layer 5 covers the outside of the high-strength skeleton layer 4. The outer wall of the protective outer layer 5 is uniformly provided with several reinforcing ribs 501. The reinforcing ribs 501 are integrally injection molded with the protective outer layer 5. The reinforcing ribs 501 are arranged in a trapezoidal shape. The height of the reinforcing ribs 501 is 5-10mm and the bottom width is 10-15mm. The protective outer layer 5 is made of high-density polyethylene material. The high-density polyethylene material is added to the extruder and heated to 200-250℃ to melt it. It is then extruded through the mold and covered the outside of the high-strength skeleton layer 4. The mold is designed to match the outer diameter of the pipe. At the same time, grooves with the same shape as the reinforcing ribs 501 are set on the inner wall of the mold. During the extrusion process, the molten high-density polyethylene material fills the mold grooves to form the reinforcing ribs 501 integrally injection molded with the protective outer layer 5. The thickness of the protective outer layer 5 is 2-4mm.

[0025] Thus, the multi-layer composite structure, combined with the corrugated strip 201 and reinforcing rib 501, greatly improves the impact resistance and wear resistance of the pipeline. Its wear resistance is far superior to that of ordinary plastic materials. Furthermore, the design of the corrugated strip 201 increases the erosion resistance of the inner wall, enabling the pipeline to effectively resist the erosion of water flow or media during long-term use, reducing wear on the inner wall and extending the service life of the pipeline. This structure also effectively enhances the corrosion resistance and overall structural stability of the pipeline, and significantly reduces maintenance costs. At the same time, the reinforcing rib 501 design on its surface further enhances the structural strength of the protective outer layer 5, making the overall performance of the pipeline more stable and reliable.

[0026] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-impact engineering plastic pipe structure, comprising a plastic pipe body (1), characterized in that, The plastic pipe body (1) is composed of a wear-resistant inner lining layer (2), an elastic buffer layer (3), a high-strength skeleton layer (4) and a protective outer layer (5) from the inside to the outside. The elastic buffer layer (3) is attached to the outside of the wear-resistant inner lining layer (2), the high-strength skeleton layer (4) is wrapped around the outside of the elastic buffer layer (3), and the protective outer layer (5) covers the outside of the high-strength skeleton layer (4). The inner wall of the wear-resistant inner lining (2) is uniformly provided with a number of corrugated strips (201), and the outer wall of the protective outer layer (5) is uniformly provided with a number of reinforcing ribs (501).

2. The impact-resistant engineering plastic pipe structure according to claim 1, characterized in that, The wear-resistant inner lining (2) is made of ultra-high molecular weight polyethylene wear-resistant material. The thickness of the wear-resistant inner lining (2) is 1-3mm. Several corrugated strips (201) are integrally set with the wear-resistant inner lining (2). The length of several corrugated strips (201) is 10-20mm, and the height of several corrugated strips (201) is 2-5mm.

3. The impact-resistant engineering plastic pipe structure according to claim 1, characterized in that, The elastic buffer layer (3) is made of rubber material and has a thickness of 3-5 mm.

4. The impact-resistant engineering plastic pipe structure according to claim 1, characterized in that, The high-strength skeleton layer (4) is made of fiber-reinforced material, and the high-strength skeleton layer (4) has 3-5 layers.

5. The impact-resistant engineering plastic pipe structure according to claim 1, characterized in that, The protective outer layer (5) is made of high-density polyethylene material. The thickness of the protective outer layer (5) is 2-4 mm. Several reinforcing ribs (501) are integrally injection molded with the protective outer layer (5). The several reinforcing ribs (501) are arranged in a trapezoidal shape. The height of the several reinforcing ribs (501) is 5-10 mm and the bottom width is 10-15 mm.

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