Corrosion resistant composite pipe
By designing a corrosion-resistant composite pipe, combining the inner pipe and armored accessories, the problem of corrugated pipes being easily corroded in the external environment was solved, achieving the effects of extending service life and improving pressure and impact resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG PANGSHI PLASTIC IND CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-19
Smart Images

Figure CN224381028U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of composite pipe technology, and in particular relates to a corrosion-resistant composite pipe. Background Technology
[0002] Composite pipes are pipes made of two or more different materials, typically laminated or joined together using a special process. Their main characteristic is the fusion of the advantages of different materials, compensating for the shortcomings of a single material to achieve better performance. Depending on the application and material combination, composite pipes are widely used in various engineering and industrial fields, such as construction, petroleum, chemical, and water supply and drainage.
[0003] Existing corrugated pipes are easily corroded due to prolonged exposure to the external environment and lack of protective measures, resulting in a significantly reduced service life. Therefore, we have specially designed a corrosion-resistant composite pipe. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned technical problems by providing a corrosion-resistant composite pipe that extends service life.
[0005] In view of this, the present invention provides a corrosion-resistant composite pipe, comprising:
[0006] The inner tube is a flexible tube;
[0007] Armor accessories, including a support frame and a corrugated sleeve, wherein the support frame is clipped onto the corrugated protrusions of the corrugated sleeve;
[0008] The support frame is made of elastic rubber.
[0009] In the above technical solution, the support frame further comprises multiple rubber strips connected end to end;
[0010] Multiple rubber strips bend towards the inner tube to form an arc-shaped surface.
[0011] Furthermore, the above technical solution also includes:
[0012] A rubber sleeve is positioned between the support frame and the corrugated sleeve, and is located within the arc-shaped surface.
[0013] The rubber cylinder is hollow inside.
[0014] Furthermore, the above technical solution also includes:
[0015] The clamping frame is integrally formed on the rubber strip and is set in the center of the arc surface;
[0016] The clamping frame is shaped like a clamp and clamps the rubber cylinder.
[0017] In the above technical solution, the corrugated sleeve further includes a first body and a second body, and corrugated protrusions are provided on the first body and the second body;
[0018] The first and second main bodies have half-circle cross sections and are connected together by welding to form a corrugated sleeve.
[0019] Furthermore, the above technical solution also includes:
[0020] Hoops are spaced apart on the corrugated sleeve and are secured between adjacent corrugated protrusions.
[0021] Furthermore, the above technical solution also includes:
[0022] A sealing sleeve is provided at both ends of the inner tube and is matched with the corrugated protrusions at both ends of the corrugated sleeve for limiting.
[0023] In the above technical solution, the sleeve is further made of heat-shrinkable material.
[0024] The beneficial effects of this utility model are as follows: by combining the inner tube and the armored accessories, the external pressure or tensile performance of the pipeline can be improved, while reducing the wear and physical damage to the pipeline caused by the external environment, ensuring the stable use of the pipeline for a longer period of time. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is an exploded view of the structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the support frame of this utility model;
[0028] Figure 4 This is a cross-sectional schematic diagram of the present invention;
[0029] The markings in the diagram are as follows: 1. Inner tube; 2. Armored accessories; 21. Support frame; 211. Rubber strip; 212. Clamping frame; 22. Corrugated sleeve; 221. First main body; 222. Second main body; 3. Rubber cylinder; 4. Hoop; 5. Sealing sleeve. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0031] Example 1:
[0032] This embodiment provides a corrosion-resistant composite pipe, comprising:
[0033] Inner tube 1, inner tube 1 is a flexible tube;
[0034] Armor accessory 2, which includes a support frame 21 and a corrugated sleeve 22, wherein the support frame 21 is snapped onto the corrugated protrusions of the corrugated sleeve 22;
[0035] The support frame 21 is made of elastic rubber.
[0036] As can be seen from this embodiment, a corrosion-resistant composite pipe includes an inner pipe 1 and an armored accessory 2;
[0037] The inner tube 1 is made of flexible hose material, which has good flexibility and corrosion resistance, effectively preventing the pipeline from being damaged in humid or corrosive environments and extending its service life.
[0038] The design of the armor accessory 2, especially the support bracket 21 that snaps onto the corrugated protrusion of the corrugated sleeve 22, provides additional mechanical protection for the inner tube 1. The elastic rubber material of the support bracket 21 effectively mitigates damage to the pipeline from external impacts, friction, or vibrations, preventing the pipeline from breaking or deforming.
[0039] During use, the inner tube 1 and the armored accessory 2 work together to improve the pipeline's ability to withstand external pressure or tensile strength, while reducing wear and physical damage to the pipeline caused by the external environment, ensuring the pipeline can be used stably for a longer period of time.
[0040] Example 2:
[0041] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0042] The support frame 21 comprises multiple rubber strips 211 connected end to end;
[0043] Among them, multiple rubber strips 211 bend towards the inner tube 1 to form an arc-shaped surface.
[0044] As can be seen from this embodiment, the support frame 21 is formed by connecting multiple rubber strips 211 end to end;
[0045] The support frame 21 is formed by connecting multiple rubber strips 211 end to end, and these rubber strips 211 bend towards the inner tube 1 to form an arc-shaped surface. This structural design makes the support frame 21 form an arched structure with higher flexibility and elasticity, which can effectively adapt to the bending or deformation of the inner tube 1 and provide more flexible support capabilities. In addition, the arc-shaped surface design makes the contact surface between the support frame 21 and the corrugated sleeve 22 smoother, reducing local friction and extending the service life of the entire composite tube. Furthermore, the rubber strips 211 themselves have good wear resistance and anti-aging ability, and can maintain stable performance for a long time in harsh environments.
[0046] Example 3:
[0047] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0048] Rubber sleeve 3 is disposed between support frame 21 and corrugated sleeve 22 and is located within the arc-shaped surface;
[0049] The rubber cylinder 3 is hollow inside.
[0050] As can be seen from this embodiment, the rubber cylinder 3 is set between the support frame 21 and the corrugated sleeve 22 and is located within the arc-shaped surface. Its hollow internal design can effectively absorb and mitigate external impacts and vibrations. When the external pressure changes or is impacted, the rubber cylinder 3 can play an elastic role, reducing the pressure transmission to the pipeline, thereby improving the seismic resistance and impact resistance of the corrugated sleeve 22 and reducing damage caused by vibration.
[0051] Furthermore, the hollow structure of the rubber cylinder 3 can effectively reduce material costs, lighten the overall weight of the pipeline system, and facilitate transportation and installation.
[0052] Example 4:
[0053] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0054] The clamping frame 212 is integrally formed on the rubber strip 211 and is located in the center of the arc-shaped surface;
[0055] The clamping frame 212 is shaped like a clamp and clamps the rubber cylinder 3.
[0056] As can be seen from this embodiment, the clamping frame 212 and the rubber strip 211 are integrally formed, which avoids the complexity of multi-part assembly, improves the stability of the overall structure, and ensures that it is not easy to loosen or misalign during the clamping process.
[0057] Furthermore, the clamping frame 212 has a clamp-shaped structure, which can uniformly limit and clamp the rubber cylinder 3, and expose the front end of the rubber cylinder 3 through the clamp-shaped opening.
[0058] Example 5:
[0059] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0060] The corrugated sleeve 22 includes a first body 221 and a second body 222, and corrugated protrusions are provided on the first body 221 and the second body 222;
[0061] The first body 221 and the second body 222 have a half-circle cross section and are connected together by welding to form a corrugated sleeve 22.
[0062] As can be seen from this embodiment, the first body 221 and the second body 222 are connected by welding to form a complete corrugated sleeve 22. This structural connection method can stably connect the corrugated sleeve 22 to the outside of the inner tube 1 and cooperate with the support frame 21.
[0063] The corrugated protrusions give the corrugated pipe a certain degree of flexibility and extensibility, allowing it to adapt to certain deformations under stress, thus enhancing its pressure resistance and durability. It is particularly suitable for applications that require the pipe to withstand certain pressures or frequent movement.
[0064] Example 6:
[0065] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0066] Hoops 4 are spaced apart on the corrugated sleeve 22 and are engaged between adjacent corrugated protrusions.
[0067] As can be seen from this embodiment, by setting multiple hoop rings 4 at intervals on the corrugated sleeve 22, the corrugated sleeve 22 can be further stably fitted to the inner tube 1, thereby helping to improve the structural strength.
[0068] Example 7:
[0069] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0070] Sealing sleeve 5 is installed at both ends of the inner tube 1.
[0071] As can be seen from this embodiment, by setting a sealing sleeve 5 structure that is connected to the corrugated sleeve 22 at both ends of the inner tube 1, the space between the corrugated sleeve 22 and the inner tube 1 can be sealed, which helps to improve the corrosion resistance of the inner tube 1.
[0072] Example 8:
[0073] This embodiment provides a corrosion-resistant composite pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0074] The sleeve is made of heat-shrinkable material.
[0075] As can be seen from this embodiment, the sleeve made of heat-shrinkable material can be connected to the inner tube 1 and the corrugated sleeve 22 more quickly.
[0076] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A corrosion-resistant composite pipe, characterized in that it comprises: Inner tube (1), the inner tube (1) is a flexible tube; Armor accessory (2), the armor accessory (2) includes a support frame (21) and a corrugated sleeve (22), the support frame (21) is snapped onto the corrugated protrusions of the corrugated sleeve (22); The support frame (21) is made of elastic rubber.
2. The anti-corrosion composite pipe according to claim 1, characterized in that, The support frame (21) comprises multiple rubber strips (211) connected end to end; Among them, multiple rubber strips (211) bend towards the inner tube (1) to form an arc-shaped surface.
3. The corrosion resistant composite pipe of claim 2, further comprising include: A rubber cylinder (3) is disposed between the support frame and the corrugated sleeve (22) and is located within the arc-shaped surface; The rubber cylinder (3) is hollow inside.
4. The anti-corrosion composite pipe according to claim 2, characterized in that, it also... include: The clamping frame (212) is integrally formed on the rubber strip (211) and is located at the center of the arc-shaped surface; The clamping frame (212) is shaped like a clamp and clamps the rubber cylinder (3).
5. The corrosion resistant composite pipe of claim 1 wherein, The corrugated sleeve (22) includes a first body (221) and a second body (222), and corrugated protrusions are provided on the first body (221) and the second body (222); The first body (221) and the second body (222) have a cross-section of half a circle and are connected together by welding to form a corrugated sleeve (22).
6. The corrosion resistant composite pipe of claim 5 further comprising include: Hoops (4) are spaced apart on the corrugated sleeve (22) and are positioned between adjacent corrugated protrusions.
7. The corrosion resistant composite pipe of claim 5, further comprising include: The sealing sleeve (5) is located at both ends of the inner tube (1) and is matched with the corrugated protrusions at both ends of the corrugated sleeve (22).
8. The corrosion resistant composite pipe of claim 7 wherein, The sleeve is made of heat-shrinkable material.