Impermeable and anti-corrosion integrated reinforced concrete drainage pipe

By installing anti-corrosion inner pipes and coatings in reinforced concrete drainage pipes, combined with a reinforced structure, the problem of insufficient corrosion resistance is solved, achieving efficient corrosion protection and strength enhancement, and preventing leakage and impact damage.

CN223662808UActive Publication Date: 2025-12-12HUIZHOU BENDA BUILDING MATERIALS IND CO LTD
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Patent Information

Application Number
CN202520257974.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-12
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing reinforced concrete drainage pipes have low corrosion resistance during use, making them unable to effectively discharge highly corrosive wastewater, resulting in shortened service life and frequent leakage.

Method used

The concrete pipe is fitted with an anti-corrosion inner tube and anti-corrosion coating, and the connection firmness and strength are improved by structures such as fixing blocks and reinforcing collars. The flange and bolt connection are combined to ensure the sealing.

Benefits of technology

It improves the corrosion resistance and strength of drainage pipes, extends their service life, prevents leakage, and enhances their resistance to external impacts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-seepage and anti-corrosion integrated reinforced concrete drainage pipe which comprises a concrete pipe, a reinforcing steel bar is fixedly connected in the concrete pipe, a group of fixing rings is fixedly connected to each of the two sides of the outer portion of the concrete pipe, and the center line of the fixing rings and the center line of the concrete pipe are located on the same vertical plane. According to the anti-seepage and anti-corrosion integrated reinforced concrete drainage pipe, the anti-corrosion inner pipe, the anti-corrosion coating and the fixing blocks are arranged, the anti-corrosion inner pipe is installed in the concrete pipe of the drainage pipe, and the multiple sets of fixing blocks arranged outside the anti-corrosion inner pipe are embedded into the concrete pipe, so that the connecting firmness of the anti-corrosion inner pipe and the concrete pipe can be improved; the anti-corrosion coating improves the anti-corrosion performance of the drainage pipe through the anti-corrosion characteristic of the anti-corrosion coating, the pipe wall of the drainage pipe is prevented from being damaged due to corrosion, the service life of the drainage pipe is prolonged, and the problem that the anti-corrosion effect is poor is solved.
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Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete drainage pipe technology, specifically to an integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe. Background Technology

[0002] Reinforced concrete pipes are commonly used in chemical production, sewage treatment and other fields to discharge sewage. These pipes have high strength and can effectively prevent damage and leakage caused by collisions when installed on the ground. Therefore, they generally have a very long service life. At the same time, these pipes generally have a large diameter, making them suitable for large-volume sewage discharge operations.

[0003] However, there are still some defects in the use of reinforced concrete drainage pipes. The pipe fittings themselves are not very corrosion resistant, which makes it impossible to discharge some highly corrosive sewage. They are not suitable for production and discharge industries with complex sewage composition.

[0004] A novel integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe to solve the problem of poor anti-corrosion effect mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe, comprising a concrete pipe, wherein reinforcing steel bars are fixedly connected inside the concrete pipe, and a set of fixing rings are fixedly connected to both sides of the outside of the concrete pipe, wherein the center line of the fixing rings is on the same vertical plane as the center line of the concrete pipe, and an anti-corrosion structure for improving corrosion resistance is provided inside the concrete pipe.

[0007] The anti-corrosion structure includes an anti-corrosion inner tube, which is fixedly connected inside the concrete pipe. A fixing block is fixedly connected outside the anti-corrosion inner tube, and an anti-corrosion coating is fixedly connected inside the anti-corrosion inner tube.

[0008] As a further technical solution of this utility model, the center line of the anti-corrosion inner tube and the center line of the concrete pipe are on the same vertical plane, and the fixing block is fixedly connected to the concrete pipe.

[0009] As a further technical solution of this utility model, the center line of the anti-corrosion coating and the center line of the anti-corrosion inner tube are on the same vertical plane, and the fixing blocks outside the anti-corrosion inner tube are arranged at equal intervals.

[0010] As a further technical solution of this utility model, a sealing ring is fixedly connected to one side of the anti-corrosion inner tube, a first flange is provided on one side of the outside of the concrete pipe, and a second flange is provided on the other side of the outside of the concrete pipe. A through hole is opened on one side of the first flange and the second flange. A connecting bolt is movably connected to the other side of the first flange, and a threaded sleeve is fixedly connected to the other side of the second flange.

[0011] As a further technical solution of this utility model, the through hole is connected to the interior of the threaded sleeve, and the connecting bolt is movably connected to the through hole.

[0012] As a further technical solution of this utility model, the first flange is fixedly connected to the fixing ring, and the second flange is fixedly connected to the fixing ring.

[0013] As a further technical solution of this utility model, a reinforcing collar is fixedly connected to the outside of the concrete pipe, a positioning block is fixedly connected to the inside of the reinforcing collar, and reinforcing ribs are fixedly connected to both sides of the reinforcing collar.

[0014] As a further technical solution of this utility model, the reinforcing rib is fixedly connected to the fixing ring, and the positioning block is fixedly connected to the concrete pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe not only achieves effective anti-corrosion and prevents leakage, but also improves the strength of the pipe body;

[0016] By incorporating an anti-corrosion inner pipe, an anti-corrosion coating, and fixing blocks, the anti-corrosion inner pipe is installed inside the concrete pipe of the drainage pipe. Multiple sets of fixing blocks installed on the outside of the anti-corrosion inner pipe are embedded inside the concrete pipe to improve the firmness of the connection between the two. As sewage passes through the inside of the anti-corrosion inner pipe, the anti-corrosion coating improves the corrosion resistance of the drainage pipe through its own corrosion-resistant properties, preventing the drainage pipe wall from being damaged by corrosion, thereby increasing the service life of the drainage pipe and achieving the goal of improving the corrosion resistance of the drainage pipe.

[0017] By incorporating an anti-corrosion inner tube, a fixing ring, a sealing ring, connecting bolts, a first flange, a threaded sleeve, a second flange, and a through hole, the drainage pipe is installed by fitting two sets of concrete pipes together. The anti-corrosion inner tube of one set of pipe fittings is inserted into the concrete pipe of the other set. Simultaneously, after the first and second flanges are fitted together, the connecting bolts are passed through the through hole and screwed into the threaded sleeve. After tightening, the anti-corrosion inner tube can be positioned through the concrete pipe, thereby ensuring the sealing ring fits between the two sets of anti-corrosion inner tubes, guaranteeing the seal after connection, and preventing leakage. This effectively prevents leakage at the connection point.

[0018] By incorporating reinforcing collars, reinforcing ribs, fixing rings, and positioning blocks, reinforcing collars and fixing rings are installed on the outside of the concrete pipe of this drainage pipe. The reinforcing collars and fixing rings can effectively protect and support the concrete pipe. At the same time, the reinforcing ribs fixed between the reinforcing collars and fixing rings fit against the outside of the concrete pipe, reducing the probability of the concrete pipe being hit by external impacts and supporting the concrete pipe, thereby improving the overall strength of the concrete pipe. The positioning blocks inside the reinforcing collars and fixing rings are embedded inside the concrete pipe, which can improve the firmness of the connection between the reinforcing collars and fixing rings and the concrete pipe, thus improving the strength of the drainage pipe. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a side view sectional diagram of the concrete pipe of this utility model;

[0021] Figure 3 This is a side sectional view of the reinforcing steel bar structure of this utility model;

[0022] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Concrete pipe; 2. Reinforcing steel bar; 3. Corrosion-resistant inner pipe; 4. Reinforcing collar; 5. Corrosion-resistant coating; 6. Reinforcing rib; 7. Fixing ring; 8. Sealing ring; 9. Connecting bolt; 10. First flange; 11. Fixing block; 12. Positioning block; 13. Threaded sleeve; 14. Second flange; 15. Through hole. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figure 1-4 An integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe includes a concrete pipe 1, with reinforcing steel bars 2 fixedly connected inside the concrete pipe 1, and a set of fixing rings 7 fixedly connected to both sides of the outside of the concrete pipe 1. The center line of the fixing rings 7 is on the same vertical plane as the center line of the concrete pipe 1, and the inside of the concrete pipe 1 is provided with an anti-corrosion structure to improve the corrosion resistance.

[0026] The anti-corrosion structure includes an anti-corrosion inner tube 3, which is fixedly connected inside the concrete pipe 1. A fixing block 11 is fixedly connected outside the anti-corrosion inner tube 3, and an anti-corrosion coating 5 is fixedly connected inside the anti-corrosion inner tube 3.

[0027] The centerline of the anti-corrosion inner tube 3 is on the same vertical plane as the centerline of the concrete pipe 1, and the fixing block 11 is fixedly connected to the concrete pipe 1.

[0028] The centerline of the anti-corrosion coating 5 and the centerline of the anti-corrosion inner tube 3 are on the same vertical plane, and the fixing blocks 11 on the outside of the anti-corrosion inner tube 3 are arranged at equal intervals.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, an anti-corrosion inner pipe 3 is installed inside the concrete pipe 1 of the drainage pipe. Multiple sets of fixing blocks 11 set on the outside of the anti-corrosion inner pipe 3 are embedded in the interior of the concrete pipe 1 to improve the firmness of the connection between the two. When sewage passes through the interior of the anti-corrosion inner pipe 3, the anti-corrosion coating 5 improves the corrosion resistance of the drainage pipe through its own corrosion resistance properties, prevents the pipe wall from being damaged by corrosion, and thus improves the service life of the drainage pipe, thereby improving the corrosion resistance of the drainage pipe.

[0030] A sealing ring 8 is fixedly connected to one side of the anti-corrosion inner tube 3. A first flange 10 is provided on one side of the outside of the concrete pipe 1, and a second flange 14 is provided on the other side of the outside of the concrete pipe 1. A through hole 15 is opened on one side of the first flange 10 and the second flange 14. A connecting bolt 9 is movably connected to the other side of the first flange 10, and a threaded sleeve 13 is fixedly connected to the other side of the second flange 14.

[0031] The through hole 15 is connected to the inside of the threaded sleeve 13, and the connecting bolt 9 is movably connected to the through hole 15; the first flange 10 is fixedly connected to the retaining ring 7, and the second flange 14 is fixedly connected to the retaining ring 7.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when installing the drainage pipe, two sets of concrete pipes 1 are bonded together, so that the anti-corrosion inner pipe 3 of one set of pipe fittings is inserted into the concrete pipe 1 of the other set of pipe fittings. At the same time, after the first flange 10 and the second flange 14 are bonded together, the connecting bolt 9 is passed through the through hole 15 and screwed into the threaded sleeve 13. After tightening, the anti-corrosion inner pipe 3 can be positioned through the concrete pipe 1, so that the sealing ring 8 is bonded between the two sets of anti-corrosion inner pipes 3 to ensure the sealing after connection and prevent leakage. This effectively prevents leakage at the connection.

[0033] The concrete pipe 1 is externally fixedly connected to a reinforcing collar 4, and internally fixedly connected to a positioning block 12. Reinforcing ribs 6 are fixedly connected to both sides of the reinforcing collar 4. The reinforcing ribs 6 are fixedly connected to the fixing ring 7, and the positioning block 12 is fixedly connected to the concrete pipe 1.

[0034] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, a reinforcing collar 4 and a fixing ring 7 are respectively installed on the outside of the concrete pipe 1 of the drainage pipe. The reinforcing collar 4 and the fixing ring 7 can effectively protect and support the concrete pipe 1. At the same time, the reinforcing rib 6 fixed between the reinforcing collar 4 and the fixing ring 7 is attached to the outside of the concrete pipe 1, which can reduce the probability of the concrete pipe 1 being hit by external collisions and support the concrete pipe 1, thereby improving the overall strength of the concrete pipe 1. The positioning block 12 inside the reinforcing collar 4 and the fixing ring 7 is embedded in the concrete pipe 1, which can improve the firmness of the connection between the reinforcing collar 4 and the fixing ring 7 and the concrete pipe 1, thereby improving the strength of the drainage pipe.

[0035] Working Principle: In use, when installing this drainage pipe, two sets of concrete pipes 1 are joined together, with the anti-corrosion inner pipe 3 of one set inserted into the concrete pipe 1 of the other set. Simultaneously, the first flange 10 and the second flange 14 are joined together, and the connecting bolt 9 is passed through the through hole 15 and screwed into the threaded sleeve 13. After tightening, the anti-corrosion inner pipe 3 is positioned within the concrete pipe 1, thus ensuring the sealing ring 8 adheres between the two sets of anti-corrosion inner pipes 3, guaranteeing a tight seal and preventing leakage. The anti-corrosion inner pipe 3 is installed inside the concrete pipe 1 of this drainage pipe. Multiple sets of fixing blocks 11 embedded in the concrete pipe 1 enhance the connection's strength. Wastewater flows through the anti-corrosion inner pipe 3... Internally, the anti-corrosion coating 5 enhances the corrosion resistance of the drainage pipe through its own corrosion-resistant properties, preventing damage caused by corrosion to the pipe wall and thus extending the service life of the drainage pipe. Reinforcing collars 4 and fixing rings 7 are installed on the outside of the concrete pipe 1. These effectively protect and support the concrete pipe 1. Simultaneously, the reinforcing ribs 6 fixed between the reinforcing collars 4 and 7, attached to the outside of the concrete pipe 1, reduce the probability of external impact and simultaneously support the concrete pipe 1, improving its overall strength. The positioning blocks 12 inside the reinforcing collars 4 and 7, embedded within the concrete pipe 1, enhance the connection between the reinforcing collars 4 and 7 and the concrete pipe 1.

Claims

1. A reinforced concrete drainage pipe with integrated impermeability and corrosion resistance, comprising a concrete pipe (1), characterized in that: The concrete pipe (1) is internally fixedly connected with reinforcing steel bars (2), and a set of fixing rings (7) are fixedly connected to both sides of the outside of the concrete pipe (1). The center line of the fixing rings (7) is on the same vertical plane as the center line of the concrete pipe (1). The inside of the concrete pipe (1) is provided with an anti-corrosion structure to improve the corrosion resistance. The anti-corrosion structure includes an anti-corrosion inner tube (3), the concrete pipe (1) is fixedly connected to the inside of the anti-corrosion inner tube (3), the outside of the anti-corrosion inner tube (3) is fixedly connected to a fixing block (11), and the inside of the protected anti-corrosion inner tube (3) is fixedly connected to an anti-corrosion coating (5).

2. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 1, characterized in that: The centerline of the anti-corrosion inner tube (3) is on the same vertical plane as the centerline of the concrete pipe (1), and the fixing block (11) is fixedly connected to the concrete pipe (1).

3. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 1, characterized in that: The centerline of the anti-corrosion coating (5) and the centerline of the anti-corrosion inner tube (3) are on the same vertical plane, and the fixing blocks (11) outside the anti-corrosion inner tube (3) are arranged at equal intervals.

4. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 1, characterized in that: A sealing ring (8) is fixedly connected to one side of the anti-corrosion inner tube (3). A first flange (10) is provided on one side of the outside of the concrete pipe (1). A second flange (14) is provided on the other side of the outside of the concrete pipe (1). A through hole (15) is opened on one side of the first flange (10) and the second flange (14). A connecting bolt (9) is movably connected to the other side of the first flange (10). A threaded sleeve (13) is fixedly connected to the other side of the second flange (14).

5. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 4, characterized in that: The through hole (15) is connected to the interior of the threaded sleeve (13), and the connecting bolt (9) is movably connected to the through hole (15).

6. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 4, characterized in that: The first flange (10) is fixedly connected to the retaining ring (7), and the second flange (14) is fixedly connected to the retaining ring (7).

7. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 1, characterized in that: The concrete pipe (1) is fixedly connected to the outside with a reinforcing collar (4), and a positioning block (12) is fixedly connected to the inside of the reinforcing collar (4). Reinforcing ribs (6) are fixedly connected to both sides of the reinforcing collar (4).

8. The integrated anti-seepage and anti-corrosion reinforced concrete drainage pipe according to claim 7, characterized in that: The reinforcing rib (6) is fixedly connected to the fixing ring (7), and the positioning block (12) is fixedly connected to the concrete pipe (1).