Pressure-resistant drain plastic pipe

Abstract

The utility model discloses a pressure -resistant type sewage plastic pipe, including butt joint ring, the inside of outer cladding is provided with a plurality of equal interval distribution's retaining ring, and the inner ring of outer cladding is provided with inner layer ring, both through hot melt welding fixed, the inside of retaining ring is penetrated and is provided with helical distribution's reinforcing rib, the inner ring of inner layer ring is provided with the armour layer, the inside of armour layer is provided with the reinforcing strip, and the inner ring of armour layer is provided with inner interlayer. Because being provided with retaining ring, reinforcing rib, armour layer and reinforcing strip, a plurality of equal interval distribution's retaining ring sets up in the inside of outer cladding, can maintain the circular cross -section shape of pipeline, prevent the pipeline from deforming when being subjected to external pressure or internal sewage impact. Helical distribution's reinforcing rib penetrates retaining ring, effectively enhanced the hoop compressive strength of pipeline, make the pipeline can bear greater pressure without breaking, promote overall structural stability.

Description

Technical Field

[0001] This utility model relates to the field of sewage pipe technology, specifically to a pressure-resistant sewage plastic pipe. Background Technology

[0002] In modern building drainage systems and municipal sewage projects, plastic sewage pipes are widely used due to their advantages such as light weight, corrosion resistance, and convenient construction. However, traditional plastic sewage pipes are prone to deformation and damage when subjected to high pressure or impact from hard objects in sewage, affecting their service life and sewage discharge efficiency. Furthermore, insufficient sealing at pipe connections can easily lead to sewage leakage and environmental pollution. In addition, the insufficient smoothness of the pipe's inner wall results in high resistance to sewage flow, easily causing dirt accumulation and requiring frequent cleaning and maintenance. Therefore, those skilled in the art have provided pressure-resistant plastic sewage pipes to solve the problems mentioned in the background section. Utility Model Content

[0003] The purpose of this invention is to provide a pressure-resistant sewage pipe to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A pressure-resistant sewage pipe includes a butt ring, an outer sheath with multiple equally spaced retaining rings inside, and an inner ring within the outer sheath. The two are fixed by hot-melt welding. A spirally distributed reinforcing rib runs through the interior of the retaining ring. An armor layer is provided within the inner ring of the inner ring, and reinforcing strips are provided inside the armor layer. An inner interlayer is provided within the armor layer. A limiting installation groove is provided at one end of the armor layer and the inner interlayer. A sealing ring is embedded inside the limiting installation groove. An inner lining layer, which is corrugated, is provided within the inner ring of the inner interlayer.

[0005] As a further improvement of this utility model: the outer surface of the armor layer is provided with a plurality of fixing holes in the radial direction, and the fixing holes are connected to the inner ring by bolts.

[0006] As a further improvement of this utility model: the sealing ring is provided with a circular hole that matches the fixing hole, and the cross-section of the sealing ring is a trapezoidal structure.

[0007] As a further improvement of this utility model: the two ends of the outer sheath are provided with mating rings, and the mating rings are provided with multiple mounting holes.

[0008] As a further improvement of this utility model: the reinforcing strip includes vertical strips and diagonal strips, and diagonal strips are installed between two adjacent vertical strips.

[0009] As a further improvement of this invention: the reinforcing strip is a carbon fiber component, the inner lining is a polytetrafluoroethylene component, and the outer cladding is a high-strength polyethylene component. As a further improvement of this invention: the outer cladding has anti-slip textures distributed along the pipe axis on its outer side.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The inclusion of retaining rings, reinforcing ribs, an armor layer, and reinforcing strips, with multiple equally spaced retaining rings positioned inside the outer cladding, maintains the pipe's circular cross-sectional shape and prevents deformation under external pressure or internal sewage impact. Spiral reinforcing ribs penetrate the retaining rings, effectively enhancing the pipe's circumferential compressive strength, enabling it to withstand greater pressure without rupture and improving overall structural stability. Diagonal strips intersect between adjacent vertical strips to form a mesh structure. Carbon fiber, with its high strength and low density, comprehensively improves the pipe's compressive strength without increasing its weight, effectively dispersing external pressure and internal impact forces, and enhancing the pipe's load-bearing capacity. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a pressure-resistant sewage discharge plastic pipe; Figure 2 This is a schematic diagram of the installation structure of the reinforcing strip in a pressure-resistant sewage plastic pipe; Figure 3 This is a schematic diagram of the reinforcing strip in a pressure-resistant sewage pipe.

[0012] In the diagram: 1. Butt ring; 2. Mounting hole; 3. Outer sheath; 4. Retaining ring; 5. Reinforcing rib; 6. Inner ring; 7. Inner lining; 8. Sealing ring; 9. Inner interlayer; 10. Limiting mounting groove; 11. Fixing hole; 12. Armor layer; 13. Reinforcing strip; 14. Diagonal strip; 15. Vertical strip. Detailed Implementation

[0013] Please see Figures 1-3 In this embodiment of the present invention, the pressure-resistant sewage pipe includes a butt ring 1, an outer sheath 3 with multiple equally spaced retaining rings 4 inside, and an inner ring 6 inside the outer sheath 3, which are fixed by hot-melt welding. A spirally distributed reinforcing rib 5 runs through the inside of the retaining ring 4. An armor layer 12 is provided inside the inner ring 6, and reinforcing strips 13 are provided inside the armor layer 12. An inner interlayer 9 is provided inside the armor layer 12 and the inner interlayer 9. A limiting installation groove 10 is provided at one end of the armor layer 12 and the inner interlayer 9. A sealing ring 8 is embedded inside the limiting installation groove 10. A wavy inner lining layer 7 is provided inside the inner interlayer 9. Furthermore, the outer surface of the armor layer 12 is radially provided with multiple fixing holes 11, which are connected to the inner ring 6 by bolts; the sealing ring 8 is provided with round holes that match the fixing holes 11, and the cross section of the sealing ring 8 is trapezoidal; the two ends of the outer cladding layer 3 are provided with mating rings 1, which are provided with multiple mounting holes 2; the reinforcing strip 13 includes vertical strips 15 and diagonal strips 14, and diagonal strips 14 are installed between two adjacent vertical strips 15; the reinforcing strip 13 is a component made of carbon fiber, the inner lining layer 7 is a component made of polytetrafluoroethylene, and the outer cladding layer 3 is a component made of high-strength polyethylene; the inner lining layer 7 is corrugated; the outer side of the outer cladding layer 3 is provided with anti-slip textures, which are distributed along the axial direction of the pipe.

[0014] The mating rings 1 are located at both ends of the outer sheath 3 and feature a thickened design to enhance the strength of the connection. The mounting holes 2 on them are used to connect to other pipe mating rings 1 via bolts, enabling quick splicing and disassembly of pipes and facilitating construction and maintenance. Additionally, some mating rings 1 have internal threads on their inner surface, which mate with the externally threaded mating rings 1 to further improve the tightness of the connection.

[0015] The outermost layer 3 is made of high-strength polyethylene, which has good wear resistance and anti-aging properties. As the outermost layer of the pipeline, it provides initial protection against external physical impacts and ultraviolet rays. The anti-slip texture distributed axially on its outer side increases the friction between the pipeline and the hands of construction workers or handling tools, facilitating pipeline handling and installation.

[0016] Multiple equally spaced retaining rings 4 are installed inside the outer sheath 3 to maintain the circular cross-sectional shape of the pipe and prevent deformation when subjected to external pressure or internal sewage impact. Spiral reinforcing ribs 5 penetrate the retaining rings 4, effectively enhancing the circumferential compressive strength of the pipe, enabling it to withstand greater pressure without breaking and improving the overall structural stability.

[0017] The inner ring 6 is firmly bonded to the outer cladding 3 by hot-melt welding, serving as a transition and providing further support. The fixing holes 11 on the outer surface of the armor layer 12 are connected to the inner ring 6 by bolts, ensuring that the armor layer 12 is securely installed and works in conjunction with the inner ring 6 to enhance the protective performance of the pipeline.

[0018] Composed of vertical strips 15 and diagonal strips 14 made of carbon fiber, the diagonal strips 14 are interlaced between two adjacent vertical strips 15 to form a mesh structure. Carbon fiber has the characteristics of high strength and low density, which can comprehensively improve the pressure resistance of the pipeline without increasing the weight of the pipeline, effectively disperse external pressure and internal impact force, and improve the load-bearing capacity of the pipeline.

[0019] The inner interlayer 9 acts as a buffer and auxiliary support, working in conjunction with the armor layer 12 and the inner lining layer 7 to make the internal structure of the pipeline more stable. The limiting installation groove 10 is located at one end of the armor layer 12 and the inner interlayer 9 to achieve precise positioning and installation of the sealing ring 8, ensuring that the sealing ring 8 performs its sealing function in the correct position.

[0020] The sealing ring 8 is made of EPDM rubber, which has excellent corrosion resistance and sealing performance. Its cross-section is trapezoidal, and it has a circular hole that matches the fixing hole 11 of the armor layer 12. During pipe connection, bolts are passed through the fixing hole 11 and the circular hole on the sealing ring 8 for tightening. This causes the trapezoidal sealing ring 8 to deform under pressure, tightly fitting the pipe connection and achieving a better sealing effect to prevent sewage leakage. The inner lining layer 7 is made of polytetrafluoroethylene and is designed in a corrugated shape. It has excellent chemical stability and self-lubricating properties, which can resist the corrosion of various chemicals in sewage, effectively extend the service life of the pipeline, increase the contact area with sewage, change the sewage flow state, effectively reduce sewage flow resistance, reduce dirt adhesion, and reduce the frequency of cleaning and maintenance.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pressure-resistant sewage pipe, comprising a butt ring (1) and an outer sheath (3), characterized in that, The outer layer (3) is provided with a plurality of equally spaced retaining rings (4) inside, and the inner ring of the outer layer (3) is provided with an inner ring (6). The two are fixed by hot melt welding. The retaining ring (4) is provided with spirally distributed reinforcing ribs (5). The inner ring of the inner ring (6) is provided with an armor layer (12). The armor layer (12) is provided with reinforcing strips (13) inside, and the inner ring of the armor layer (12) is provided with an inner interlayer (9). One end of the armor layer (12) and the inner interlayer (9) is provided with a limiting installation groove (10). A sealing ring (8) is embedded in the limiting installation groove (10). The inner ring of the inner interlayer (9) is provided with an inner lining layer (7). The inner lining layer (7) is wavy.

2. The pressure-resistant sewage pipe according to claim 1, characterized in that, The outer surface of the armor layer (12) is provided with a plurality of fixing holes (11) in the radial direction, and the fixing holes (11) are connected to the inner ring (6) by bolts.

3. The pressure-resistant sewage pipe according to claim 1, characterized in that, The sealing ring (8) is provided with a round hole that matches the fixing hole (11), and the cross section of the sealing ring (8) is a trapezoidal structure.

4. The pressure-resistant sewage pipe according to claim 1, characterized in that, The outer layer (3) has a mating ring (1) at both ends, and the mating ring (1) has a plurality of mounting holes (2).

5. The pressure-resistant sewage pipe according to claim 1, characterized in that, The reinforcing strip (13) includes vertical strips (15) and diagonal strips (14), with diagonal strips (14) intersecting between two adjacent vertical strips (15).

6. The pressure-resistant sewage pipe according to claim 1, characterized in that, The reinforcing strip (13) is a carbon fiber component, the inner lining (7) is a polytetrafluoroethylene component, and the outer cladding (3) is a high-strength polyethylene component.

7. The pressure-resistant sewage pipe according to claim 1, characterized in that, The outer cladding layer (3) is provided with anti-slip texture on the outside, and the anti-slip texture is distributed along the pipe axis.

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