High-strength anti-deformation glass fiber reinforced plastic mortar pipe

By setting fiber cloth layers and reinforcing ribs on the outside of the fiberglass reinforced plastic (FRP) sand-filled pipe, and setting toughening ribs inside, and connecting flanges and corrugated compensation pipes at both ends of the pipe, the problem of easy damage to FRP sand-filled pipes during transportation and installation is solved, achieving high strength and deformation resistance.

CN224214863UActive Publication Date: 2026-05-08张志君
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
张志君
Filing Date
2025-06-25
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing fiberglass reinforced plastic (FRP) pipes are susceptible to impact and compression during transportation and installation, which can lead to pipe damage or deformation and affect their service life.

Method used

Fiber cloth layers and reinforcing ribs are installed on the outside of the fiberglass pipe, and toughening ribs are installed inside. Flanges and corrugated compensating pipes are connected to both ends of the pipe to enhance structural strength and resistance to deformation.

Benefits of technology

It improves the structural strength and deformation resistance of FRP pipes, prevents damage, ensures that the pipes are not easily deformed under external forces, and extends their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-strength anti-deformation glass fiber reinforced plastic mortar pipe, which belongs to the technical field of pipelines and comprises a glass fiber reinforced plastic pipeline, a reinforcing component and an anti-deformation component. The glass fiber reinforced plastic pipeline is wrapped with a wear-resistant layer, and the interior of the glass fiber reinforced plastic pipeline is connected with a sand inclusion layer; the fiber cloth layer is connected to the outer wall of the glass fiber reinforced plastic pipeline, the reinforcing ribs are laid on the surface of the fiber cloth layer in the axial direction of the glass fiber reinforced plastic pipeline, and the reinforcing ribs are spirally wound around the outside of the glass fiber reinforced plastic pipeline, so that a reinforcing outer layer is formed, and the structural strength of the glass fiber reinforced plastic pipeline is improved; the flexible ribs are connected to the interior of the base cloth layer, the flexible ribs have good deformation capacity, and when the glass fiber reinforced plastic pipeline is extruded by the external force or is bent, the flexible ribs can eliminate the external force through deformation of the flexible ribs, so that the service life of the glass fiber reinforced plastic pipeline is prolonged; the deformation quantity generated when the glass fiber reinforced plastic pipeline is subjected to external force is reduced, and the deformation resistance of the pipeline is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to high-strength, deformation-resistant fiberglass reinforced sand pipe. Background Technology

[0002] Fiberglass reinforced plastic (FRP) pipes, with their excellent corrosion resistance, hydraulic properties, large flow capacity, short construction period, and low overall investment, have become the best choice for chemical industries and drainage projects. However, current FRP pipes have low pressure resistance and weak impact resistance, making most of them prone to breakage. Furthermore, most FRP pipes are inconvenient to connect, and improper connections can lead to leaks. A new FRP pipe, patent application number "CN201521116065.9", addresses these issues by providing a design that uses an L-shaped groove and slider to facilitate connection. However, this design still requires improvement: due to the pipe's susceptibility to collisions and compression during transportation and installation, the internal reinforced structure makes it susceptible to damage or deformation under external forces, potentially rendering the pipe unusable. Utility Model Content

[0003] The purpose of this utility model is to provide a high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe to solve the problem mentioned in the background art that the pipe body is prone to collision and compression during transportation and installation, and the lack of a reinforcing structure inside the pipe body makes it easy for the pipe body to break or deform under external force, resulting in the pipe body being damaged and unable to be used normally.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe, comprising a FRP pipe, reinforcing components, and deformation-resistant components;

[0005] Wherein: the fiberglass pipe is wrapped with a wear-resistant layer on the outside and has a sand-filled layer inside;

[0006] The reinforcing component includes a fiber cloth layer connected to the outer wall of the fiberglass pipe, and multiple reinforcing ribs are laid on the surface of the fiber cloth layer. The multiple reinforcing ribs are spirally wound and intertwined along the axial direction of the fiberglass pipe.

[0007] The deformation-resistant component includes a base fabric layer connected to the outside of the reinforcing ribs, and internally connected to the base fabric layer are multiple resilient ribs arranged around the fiberglass pipe.

[0008] As a preferred embodiment of this utility model, an anti-seismic layer is further provided between the reinforcing rib and the base fabric layer.

[0009] As a preferred embodiment of this utility model, the inner wall of the fiberglass pipe is connected with a corrosion-resistant layer.

[0010] As a preferred embodiment of this utility model: the two ends of the fiberglass pipe are connected to connecting flanges, the surface of the connecting flanges is connected to butt flanges, and the surfaces of the connecting flanges and butt flanges are provided with mounting holes, and the mounting holes are threaded with fixing bolts.

[0011] As a preferred embodiment of this utility model: a corrugated compensating pipe is fixedly installed on the surface of the mating flange, and two adjacent fiberglass pipes are fixedly connected to the corrugated compensating pipe through a connecting flange at one end.

[0012] As a preferred embodiment of this utility model, the surface of the fixing bolt is hot-dip galvanized.

[0013] As a preferred embodiment of this utility model, an antistatic layer is further provided between the wear-resistant layer and the base fabric layer.

[0014] As a preferred embodiment of this utility model, a waterproof membrane is also provided between the fiberglass pipe and the fiber cloth layer.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) A fiber cloth layer is connected to the outer wall of the fiberglass pipe. Multiple reinforcing ribs are laid on the surface of the fiber cloth layer. The reinforcing ribs are laid along the axial direction of the fiberglass pipe. Multiple reinforcing ribs are spirally wound around the outside of the fiberglass pipe to form a reinforced outer layer, which improves the structural strength of the fiberglass pipe itself and prevents the fiberglass pipe from being damaged and rendered unusable when subjected to external force.

[0017] (2) Through the provided anti-deformation components, the outer side of the reinforcing rib is connected to the base fabric layer, and the inner side of the base fabric layer is connected to the toughening rib. The toughening rib has good deformation capacity. When the fiberglass pipe is squeezed by external force or bends, the multiple toughening ribs wrapped around the outside of the fiberglass pipe can eliminate the external force through their own deformation, thereby reducing the deformation of the fiberglass pipe when subjected to external force and improving the pipe's anti-deformation capacity. Attached Figure Description

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

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 A schematic diagram of the reinforcing rib structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the corrugated compensating pipe of this utility model.

[0022] In the diagram: 1. Fiberglass pipe; 2. Wear-resistant layer; 3. Sand-filled layer; 4. Reinforcing component; 41. Fiber cloth layer; 42. Reinforcing rib; 5. Deformation-resistant component; 51. Base cloth layer; 52. Toughening rib; 6. Seismic layer; 7. Corrosion-resistant layer; 8. Connecting flange; 9. Butt flange; 10. Mounting hole; 11. Fixing bolt; 12. Corrugated compensating pipe; 13. Antistatic layer; 14. Waterproof membrane. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1-4 High-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe with sand filling, comprising: FRP pipe 1, reinforcing component 4, and deformation-resistant component 5; the FRP pipe 1 is externally wrapped with a wear-resistant layer 2, and the FRP pipe 1 is internally connected with a sand filling layer 3;

[0025] Please see Figure 3 The reinforcing component 4 includes a fiber cloth layer 41 connected to the outer wall of the fiberglass pipe 1. Multiple reinforcing ribs 42 are laid on the surface of the fiber cloth layer 41. The multiple reinforcing ribs 42 are spirally wound and intertwined along the axial direction of the fiberglass pipe 1.

[0026] In practical use: A fiber cloth layer 41 is connected to the outer wall of the fiberglass pipe 1, and multiple reinforcing ribs 42 are laid on the surface of the fiber cloth layer 41. The reinforcing ribs 42 are laid along the axial direction of the fiberglass pipe 1, and the multiple reinforcing ribs 42 are spirally wound around the outside of the fiberglass pipe 1 to form a reinforced outer layer, which improves the structural strength of the fiberglass pipe 1 itself, so that the fiberglass pipe 1 will not be damaged and become unusable when subjected to external forces.

[0027] Please see Figure 3 The anti-deformation component 5 includes a base fabric layer 51 connected to the outside of the reinforcing rib 42, and a toughening rib 52 connected inside the base fabric layer 51. Multiple toughening ribs 52 are arranged around the fiberglass pipe 1.

[0028] In practical use: the reinforcing rib 42 is connected to the base fabric layer 51 on the outside, and the base fabric layer 51 is connected to the toughening rib 52 inside. The toughening rib 52 has good deformation capacity. When the fiberglass pipe 1 is squeezed or bent by external force, the multiple toughening ribs 52 wrapped around the outside of the fiberglass pipe 1 can eliminate the external force through their own deformation, thereby reducing the deformation of the fiberglass pipe 1 when subjected to external force and improving the pipe's resistance to deformation.

[0029] Please see Figure 2 An anti-seismic layer 6 is also provided between the reinforcing rib 42 and the base fabric layer 51.

[0030] In practical use: the anti-seismic layer 6 provided between the reinforcing rib 42 and the base fabric layer 51 gives the fiberglass pipe 1 good seismic resistance.

[0031] Please see Figure 2 The inner wall of the fiberglass pipe 1 is connected with a corrosion-resistant layer 7.

[0032] In practical applications: The corrosion-resistant layer 7 connected to the inner wall of the fiberglass pipe 1 can provide corrosion resistance when transporting special corrosive media, thereby improving the corrosion resistance of the pipe.

[0033] Please see Figure 4 The fiberglass pipe 1 is connected to both ends with connecting flanges 8. The surface of the connecting flanges 8 is connected with a butt flange 9. Both the surface of the connecting flanges 8 and the butt flange 9 are provided with mounting holes 10. The mounting holes 10 are threaded with fixing bolts 11. The surface of the butt flange 9 is fixedly installed with a corrugated compensating pipe 12. Two adjacent fiberglass pipes 1 are fixedly connected to the corrugated compensating pipe 12 through the connecting flanges 8 at one end. The surface of the fixing bolts 11 is hot-dip galvanized.

[0034] In practical use: both ends of the FRP pipe 1 are connected with connecting flanges 8. One end of the FRP pipe 1 is equipped with a corrugated compensating pipe 12. After the connecting flange 8 and the mating flange 9 at one end of the corrugated compensating pipe 12 are connected, the fixing bolts 11 are threaded into the mounting holes 10 opened on the surfaces of the connecting flange 8 and the mating flange 9, so that the FRP pipe 1 and the corrugated compensating pipe 12 are connected. The adjacent FRP pipes 1 are connected by the corrugated compensating pipes 12, so that the overall pipeline has good resistance to deformation. The fixing bolts 11 are hot-dip galvanized, so that they have good corrosion resistance and oxidation resistance when buried underground.

[0035] Please see Figure 2 An antistatic layer 13 is also provided between the wear-resistant layer 2 and the base fabric layer 51.

[0036] In practical use: an antistatic layer 13 is provided between the wear-resistant layer 2 and the base fabric layer 51, so that the surface of the fiberglass pipe 1 has an antistatic effect.

[0037] Please see Figure 3 A waterproof membrane 14 is also provided between the fiberglass pipe 1 and the fiber cloth layer 41.

[0038] In practical use: A waterproof membrane 14 is provided between the fiberglass pipe 1 and the fiber cloth layer 41, so that when the pipeline transports the medium, the water is blocked inside the fiberglass pipe 1, and the water seepage is prevented from damaging the pipe structure.

[0039] A fiber cloth layer 41 is connected to the outer wall of the fiberglass pipe 1. Multiple reinforcing ribs 42 are laid on the surface of the fiber cloth layer 41. The reinforcing ribs 42 are laid along the axial direction of the fiberglass pipe 1. The multiple reinforcing ribs 42 are spirally wound around the outside of the fiberglass pipe 1 to form a reinforced outer layer, which improves the structural strength of the fiberglass pipe 1. Tough ribs 52 are connected inside the base cloth layer 51. The tough ribs 52 have good deformation capacity. When the fiberglass pipe 1 is squeezed or bent by external force, the multiple tough ribs 52 wrapped around the outside of the fiberglass pipe 1 can eliminate the external force through their own deformation, thereby reducing the deformation of the fiberglass pipe 1 under external force and improving the pipe's resistance to deformation.

[0040] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe, characterized in that, include: Fiberglass pipe (1), the outside of which is wrapped with a wear-resistant layer (2), and the inside of which is connected with a sand-filled layer (3); The reinforcing component (4) includes a fiber cloth layer (41) connected to the outer wall of the fiberglass pipe (1), and multiple reinforcing ribs (42) are laid on the surface of the fiber cloth layer (41). The multiple reinforcing ribs (42) are spirally wound and intertwined along the axial direction of the fiberglass pipe (1). The anti-deformation component (5) includes a base fabric layer (51) connected to the outside of the reinforcing rib (42), and a toughening rib (52) is connected inside the base fabric layer (51). Multiple toughening ribs (52) are arranged around the fiberglass pipe (1).

2. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 1, characterized in that: An anti-seismic layer (6) is also provided between the reinforcing rib (42) and the base fabric layer (51).

3. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 1, characterized in that: The inner wall of the fiberglass pipe (1) is connected with a corrosion-resistant layer (7).

4. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 1, characterized in that: The fiberglass pipe (1) is connected to both ends with connecting flanges (8), and the surface of the connecting flanges (8) is connected with a butt flange (9). The surfaces of the connecting flanges (8) and the butt flanges (9) are provided with mounting holes (10), and the mounting holes (10) are threaded with fixing bolts (11).

5. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 4, characterized in that: A corrugated compensating pipe (12) is fixedly installed on the surface of the docking flange (9), and two adjacent fiberglass pipes (1) are fixedly connected to the corrugated compensating pipe (12) through a connecting flange (8) at one end.

6. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 4, characterized in that: The surface of the fixing bolt (11) is hot-dip galvanized.

7. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 1, characterized in that: An antistatic layer (13) is also provided between the wear-resistant layer (2) and the base fabric layer (51).

8. The high-strength, deformation-resistant fiberglass reinforced plastic (FRP) pipe according to claim 5, characterized in that: A waterproof membrane (14) is also provided between the fiberglass pipe (1) and the fiber cloth layer (41).

Citation Information

Patent Citations

  • Mortar -filled glass fiber reinforced plastic pipe

    CN205664008U