Large-caliber leakproof reinforced concrete drainage pipe

By introducing impellers to accelerate water flow, baffles to cut impurities, and sealing mechanisms into large-diameter reinforced concrete drainage pipes, the problems of easy pipe deformation and leakage were solved, achieving smooth water flow and environmental protection.

CN224150458UActive Publication Date: 2026-04-21ZHEJIANG YINTAI CEMENT COMPONENTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YINTAI CEMENT COMPONENTS CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Large-diameter reinforced concrete drainage pipes are prone to deformation and leakage at the joints when subjected to external forces, resulting in water waste and environmental pollution. Existing improvement measures have failed to effectively solve the leakage problem.

Method used

The system uses paddles to accelerate water flow, baffles and cutters to cut impurities, and a sealing mechanism that uses sealing rings and rubber rings to seal the pipe. It also uses stop rings and brackets to prevent displacement, and springs to buffer and reduce stress on the pipe.

Benefits of technology

It effectively prevents pipe blockage and leakage, ensures smooth water flow, reduces environmental pollution, and improves the pipe's resistance to deformation and its sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drainage pipelines, and discloses a large-diameter leakproof reinforced concrete drainage pipe which comprises a cylindrical pipeline, a fixing rod is fixedly connected to the middle of the inner wall of the cylindrical pipeline, a first fixing ring is fixedly connected to the bottom of the fixing rod, and a first rotating shaft is fixedly connected to the middle of the outer wall of the first fixing ring. A first fixing block is fixedly connected to the bottom of the first rotating shaft, paddles are fixedly connected to the outer wall of the first fixing block, a second rotating shaft is fixedly connected to the middle of the inner wall of the first fixing ring, a water baffle is fixedly connected to the bottom end of the second rotating shaft, and a water hammer groove is formed in the upper side of the outer wall of the water baffle. The top end of the second rotating shaft is fixedly connected with a second fixing block. According to the utility model, the water flow flowing into the pipeline is accelerated through the paddle, then the accelerated water flow impacts the outer wall of the water baffle, and the water hammer groove is formed in the outer wall of the water baffle, so that the stress effect of the water baffle is greater.
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Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, and in particular to large-diameter leak-proof reinforced concrete drainage pipes. Background Technology

[0002] Reinforced concrete drainage pipes are widely used in urban drainage, farmland irrigation, and industrial wastewater discharge. They have the advantages of high strength, good durability, and relatively low cost. With the acceleration of urbanization, the scale of urban drainage systems is constantly expanding, and the requirements for drainage pipes are becoming increasingly stringent. Large-diameter drainage pipes need to withstand greater water pressure and flow, while ensuring that no leaks occur during long-term use. In some areas with high environmental requirements, such as drinking water source protection areas and nature reserves, the requirements for leak prevention are even more stringent. In addition, some industrial sectors also have special requirements for the leak prevention performance of drainage pipes to prevent the leakage of toxic and harmful wastewater from causing harm to the environment and human health.

[0003] Traditional reinforced concrete drainage pipes, while possessing a certain strength, are more prone to deformation under significant external forces, such as uneven foundation settlement. Furthermore, leaks at the joints of reinforced concrete drainage pipes are common, leading to environmental pollution. Currently, improvements to the pipe structure, such as the use of steel fiber reinforced concrete and synthetic fiber reinforced concrete, have been made. The addition of fibers effectively prevents the propagation of concrete cracks and improves the pipe's toughness and resistance to deformation. However, the problem of leaks at the joints of large-diameter reinforced concrete drainage pipes remains unresolved, resulting in water waste, potential environmental pollution, and disruption to the normal operation of drainage systems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a large-diameter leak-proof reinforced concrete drainage pipe, which aims to improve the problem of pipe blockage in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a large-diameter leak-proof reinforced concrete drainage pipe, comprising a cylindrical pipe, a fixing rod fixedly connected to the middle of the inner wall of the cylindrical pipe, a fixing ring fixedly connected to the bottom of the fixing rod, a rotating shaft fixedly connected to the middle of the outer wall of the fixing ring, a fixing block fixedly connected to the bottom of the rotating shaft, a paddle fixedly connected to the outer wall of the fixing block, a second rotating shaft fixedly connected to the middle of the inner wall of the fixing ring, a water baffle fixedly connected to the bottom end of the second rotating shaft, a water hammer groove provided on the upper side of the outer wall of the water baffle, a second fixing block fixedly connected to the top end of the second rotating shaft, a auger fixedly connected to the outer wall of the second fixing block, and a sealing mechanism fixedly connected to both ends of the cylindrical pipe, the sealing mechanism being used to seal the pipe to prevent leakage.

[0006] As a further description of the above technical solution:

[0007] The sealing mechanism includes a sealing ring 1, the bottom of which is fixedly connected to the top of a cylindrical pipe. A rubber ring 2 is fixedly connected to the top of the outer wall of the sealing ring 1, a rubber ring 1 is fixedly connected to the middle of the outer wall of the sealing ring 1, and a sealing pipe is fixedly connected to the bottom of the outer wall of the sealing ring 1. A groove 2 is formed at the top of the sealing pipe, and a sealing ring 2 is fixedly connected to the bottom of the outer wall of the sealing pipe. A groove 1 is formed in the middle of the inner wall of the sealing ring 2, and a fixing ring 2 is fixedly connected to the inner wall of the sealing ring 2.

[0008] As a further description of the above technical solution:

[0009] A stop ring is fixedly connected to the right side of the outer wall of the sealed pipe, and a bolt is threaded onto the outer wall of the stop ring.

[0010] As a further description of the above technical solution:

[0011] An upper fixing frame is fixedly connected to the upper side of the outer wall of the sealed pipe, and an upper stop block is fixedly connected to the rear side of the outer wall of the upper fixing frame.

[0012] As a further description of the above technical solution:

[0013] A lower fixing frame is fixedly connected to the lower side of the outer wall of the sealed pipe, and a lower stop block is fixedly connected to the rear side of the outer wall of the lower fixing frame. A friction groove is formed on the inner wall of the lower fixing frame.

[0014] As a further description of the above technical solution:

[0015] A threaded rod is fixedly connected to the middle of the outer wall of the lower stop block, and a rotating handle is fixedly connected to the top of the threaded rod.

[0016] As a further description of the above technical solution:

[0017] A spring is fixedly connected to the inner wall of the cylindrical pipe, and a force-bearing tube is fixedly connected to the top of the spring.

[0018] As a further description of the above technical solution:

[0019] A nut is threaded onto the right side of the outer wall of the bolt, and a nut is fixedly connected to the top of the bolt.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the water flow into the pipe is accelerated by the paddle blades, and the water flow speed increases. The accelerated water flow then impacts the outer wall of the baffle plate. The outer wall of the baffle plate has water impact grooves to increase the force on the baffle plate. At the same time, a rotating shaft is fixedly connected to the bottom of the outer wall of the baffle plate, and drives the rotating shaft to rotate. A fixing block is fixedly connected to the bottom of the shaft, and a cutter is fixedly connected to the outer wall of the fixing block. The rotating shaft drives the cutter to rotate, cutting impurities entering the pipe to prevent blockage.

[0022] 2. In this utility model, a sealing ring 1 is fixedly connected to the top of the sealing pipe, a rubber ring 2 is fixedly connected to the top of the sealing ring 1, and a rubber ring 1 and a rubber ring 2 are fixedly connected to the outer wall of the sealing ring 1 to achieve the sealing effect together. A sealing ring 2 is fixedly connected to the bottom of the sealing pipe, and a groove 1 is opened on the inner wall of the sealing ring 2. At the same time, a groove 2 is opened on the top of the sealing pipe. The sealing effect of the pipe is achieved by joining the sealing ring 1 and the sealing ring 2. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0024] Figure 2 This is a partial side view of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0025] Figure 3 This is a partial structural diagram of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0026] Figure 4 This is a partial structural breakdown diagram of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0027] Figure 5 This is a partial structural breakdown diagram of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0028] Figure 6 This is a partial structural diagram of the large-diameter leak-proof reinforced concrete drainage pipe proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed rod; 2. Sealing mechanism; 201. Sealing ring one; 202. Rubber ring two; 203. Rubber ring one; 204. Fixed ring two; 205. Groove one; 206. Sealing ring two; 207. Groove two; 208. Sealing pipe; 3. Fixed ring one; 4. Paddle blade; 5. Fixed block one; 6. Fixed block two; 7. Auger; 8. Rotating shaft one; 9. Water hammer groove; 10. Water baffle; 11. Rotating shaft two; 12. Columnar pipe; 13. Stop ring; 14. Lower stop block; 15. Lower fixed frame; 16. Threaded rod; 17. Rotating handle; 18. Upper fixed frame; 19. Bolt; 20. Nut; 21. Force-bearing tube; 22. Spring; 23. Friction groove; 24. Upper stop block; 25. Nut. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 3 - Appendix Figure 6 An embodiment of this utility model provides a large-diameter leak-proof reinforced concrete drainage pipe, including a cylindrical pipe 12. A fixing rod 1 is fixedly connected to the middle of the inner wall of the cylindrical pipe 12. A fixing ring 3 is fixedly connected to the bottom of the fixing rod 1 for fixing. A rotating shaft 8 is fixedly connected to the middle of the outer wall of the fixing ring 3. A fixing block 5 is fixedly connected to the bottom of the rotating shaft 8 for fixing. A blade 4 is fixedly connected to the outer wall of the fixing block 5. A rotating shaft 11 is fixedly connected to the middle of the inner wall of the fixing ring 3 for transmission. A baffle plate 10 is fixedly connected to the bottom end of the rotating shaft 11. A water hammer groove 9 is opened on the upper side of the outer wall of the baffle plate 10 to obtain power through the impact of water flow. A fixing block 6 is fixedly connected to the top end of the rotating shaft 11. A cutter 7 is fixedly connected to the outer wall of the fixing block 6 to cut impurities and garbage flowing into the pipe. A sealing mechanism 2 is fixedly connected to both ends of the cylindrical pipe 12 to seal the pipe and prevent leakage.

[0033] Specifically, after the water enters the pipe, it first passes through the blade 4, which accelerates the water flow. The increased flow velocity impacts the baffle plate 10 as it passes through the pipe. At the same time, the outer wall of the baffle plate 10 has water impact grooves 9, which increases the force of the water acting on the outer wall of the baffle plate 10. The baffle plate 10 is also fixedly connected to a rotating shaft 11, and a fixing block 6 is fixedly connected to the bottom of the rotating shaft 11. A cutter 7 is fixedly connected to the outer wall of the fixing block 6. The force on the baffle plate 10 is transmitted through the rotating shaft 11, which drives the cutter 7 to rotate, thereby cutting the impurities in the pipe.

[0034] Please see the appendix Figure 1 - Appendix Figure 3 The sealing mechanism 2 includes a sealing ring 201, the bottom of which is fixedly connected to the top of the cylindrical pipe 12 for a fixed connection. A rubber ring 202 is fixedly connected to the top of the outer wall of the sealing ring 201, and a rubber ring 203 is fixedly connected to the middle of the outer wall of the sealing ring 201 to seal the pipe and prevent leakage. A sealing pipe 208 is fixedly connected to the bottom of the outer wall of the sealing ring 201. A groove 207 is provided on the top of the sealing pipe 208 for a sealing function. A sealing ring 206 is fixedly connected to the bottom of the outer wall of the sealing pipe 208. A groove 205 is provided in the middle of the inner wall of the sealing ring 206 for a sealing function. A fixing ring 204 is fixedly connected to the inner wall of the sealing ring 206 for a fixed connection.

[0035] Specifically, a sealing ring 201 is fixedly connected to the top of the sealing pipe 208, a rubber ring 203 is fixedly connected to the middle of the outer wall of the sealing ring 201, and a rubber ring 202 is fixedly connected to the top of the sealing ring 201. The rubber ring 202 and the rubber ring 203 have a good sealing effect. At the same time, a sealing ring 206 is fixedly connected to the bottom of the sealing pipe 208. A groove 205 is opened on the inner wall of the sealing ring 206, and a groove 207 is opened on the top of the sealing pipe 208. By engaging the sealing ring 206 with the sealing ring 201, a sealing effect can be achieved, thus sealing the pipe and preventing leakage.

[0036] Please see the appendix Figure 1 - Appendix Figure 3 A stop ring 13 is fixedly connected to the right side of the outer wall of the sealed pipe 208. A bolt 19 is threadedly connected to the outer wall of the stop ring 13 to fasten the interface between the pipes. An upper fixing bracket 18 is fixedly connected to the upper side of the outer wall of the sealed pipe 208. An upper stop block 24 is fixedly connected to the rear side of the outer wall of the upper fixing bracket 18. A lower fixing bracket 15 is fixedly connected to the lower side of the outer wall of the sealed pipe 208 to fix the pipe and prevent it from shifting position. A lower stop block 14 is fixedly connected to the rear side of the outer wall of the lower fixing bracket 15. A friction groove 23 is opened on the inner wall of the lower fixing bracket 15 to increase friction.

[0037] Specifically, the interface between the pipes is first tightened by the stop ring 13 to prevent pipe displacement. At the same time, the pipes are tightened by the lower fixing bracket 15 and the upper fixing bracket 18 and the pipes are fixed.

[0038] Please see the appendix Figure 2 - Appendix Figure 4 A threaded rod 16 is fixedly connected to the middle of the outer wall of the lower stop block 14, and a rotating handle 17 is fixedly connected to the top of the threaded rod 16 to fasten the upper fixed frame 18 and the lower fixed frame 15. A spring 22 is fixedly connected to the inner wall of the cylindrical pipe 12, and a force-bearing tube 21 is fixedly connected to the top of the spring 22 to play a buffering role. A nut 20 is threadedly connected to the right side of the outer wall of the bolt 19, and a nut 25 is fixedly connected to the top of the bolt 19 to play a fastening role.

[0039] Specifically, the lower fixed bracket 15 and the upper fixed bracket 18 can be fastened by the threaded rod 16 to achieve the function of fastening the pipe. At the same time, a spring 22 is fixedly connected to the outer wall of the force-bearing pipe 21, and the spring 22 is fixedly connected to the cylindrical pipe 12. The spring 22 and the force-bearing pipe 21 can reduce the force on the cylindrical pipe 12 and prevent the pipe from breaking.

[0040] Working principle: When water flows through the cylindrical pipe 12, a fixed rod 1 is fixedly connected to the middle of the inner wall of the cylindrical pipe 12. A fixed ring 3 is fixedly connected to the fixed rod 1. A rotating shaft 8 is rotatably connected to the top of the fixed ring 3. A blade 4 is fixedly connected to the outer wall of the rotating shaft 8. When the water flows through the blade 4, the blade 4 accelerates the water flow. The accelerated water flow then passes through the baffle plate 10. With the power provided by the water, the baffle plate 10 drives the rotating shaft 11 to rotate. At the same time, a cutter 7 is fixedly connected to the bottom of the rotating shaft 11. The cutter 7 cuts the incoming garbage to prevent the pipe from being blocked, thus solving the problem of pipe blockage.

[0041] To prevent pipeline leaks and environmental pollution, a sealing ring 201 is fixedly connected to the first end of the pipeline. A rubber ring 203 is fixedly connected to the middle of the outer wall of the sealing ring 201, and a rubber ring 202 is fixedly connected to the top of the sealing ring 201. At the same time, a sealing ring 206 is fixedly connected to the last end of the pipeline. A groove 205 is formed on the inner wall of the sealing ring 206. The bottom of the sealing ring 206 is fixedly connected to the sealing pipe 208, and a groove 207 is formed on the top of the sealing pipe 208. The groove 207 allows the rubber ring 202 to be inserted to achieve a seal, and the groove 205 allows the rubber ring 203 to be inserted to achieve a seal. This prevents leakage.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. Large diameter leak-proof reinforced concrete sewer pipe comprising a cylindrical pipe (12), characterized in that: A fixing rod (1) is fixedly connected to the middle of the inner wall of the cylindrical pipe (12). A fixing ring (3) is fixedly connected to the bottom of the fixing rod (1). A rotating shaft (8) is fixedly connected to the middle of the outer wall of the fixing ring (3). A fixing block (5) is fixedly connected to the bottom of the rotating shaft (8). A blade (4) is fixedly connected to the outer wall of the fixing block (5). A rotating shaft (11) is fixedly connected to the middle of the inner wall of the fixing ring (3). A baffle plate (10) is fixedly connected to the bottom of the rotating shaft (11). A water hammer groove (9) is opened on the upper side of the outer wall of the baffle plate (10). A fixing block (6) is fixedly connected to the top of the rotating shaft (11). A auger (7) is fixedly connected to the outer wall of the fixing block (6). A sealing mechanism (2) is fixedly connected to both ends of the cylindrical pipe (12). The sealing mechanism (2) is used to seal the pipe to prevent leakage.

2. The large diameter leak resistant reinforced concrete drain pipe according to claim 1, characterized in that: The sealing mechanism (2) includes a sealing ring (201), the bottom of which is fixedly connected to the top of the cylindrical pipe (12). A rubber ring (202) is fixedly connected to the top of the outer wall of the sealing ring (201). A rubber ring (203) is fixedly connected to the middle of the outer wall of the sealing ring (201). A sealing pipe (208) is fixedly connected to the bottom of the outer wall of the sealing ring (201). A groove (207) is provided at the top of the sealing pipe (208). A sealing ring (206) is fixedly connected to the bottom of the outer wall of the sealing pipe (208). A groove (205) is provided in the middle of the inner wall of the sealing ring (206). A fixing ring (204) is fixedly connected to the inner wall of the sealing ring (206).

3. The large diameter leak resistant reinforced concrete pipe according to claim 2, wherein: A stop ring (13) is fixedly connected to the right side of the outer wall of the sealing pipe (208), and a bolt (19) is threadedly connected to the outer wall of the stop ring (13).

4. The large diameter leak resistant reinforced concrete pipe according to claim 2, wherein: An upper fixing bracket (18) is fixedly connected to the upper side of the outer wall of the sealing pipe (208), and an upper stop block (24) is fixedly connected to the rear side of the outer wall of the upper fixing bracket (18).

5. The large diameter leak resistant reinforced concrete pipe according to claim 2, wherein: The lower side of the outer wall of the sealed pipe (208) is fixedly connected to a lower fixing bracket (15), and the rear side of the outer wall of the lower fixing bracket (15) is fixedly connected to a lower stop block (14). The inner wall of the lower fixing bracket (15) is provided with a friction groove (23).

6. The large diameter leak resistant reinforced concrete pipe according to claim 5, wherein: A threaded rod (16) is fixedly connected to the middle of the outer wall of the lower stop block (14), and a rotating handle (17) is fixedly connected to the top of the threaded rod (16).

7. The large diameter leak resistant reinforced concrete pipe of claim 1, wherein: A spring (22) is fixedly connected to the inner wall of the cylindrical pipe (12), and a force-bearing pipe (21) is fixedly connected to the top of the spring (22).

8. The large diameter leak resistant reinforced concrete pipe of claim 3, wherein: A nut (20) is threaded onto the right side of the outer wall of the bolt (19), and a nut (25) is fixedly connected to the top of the bolt (19).