Prestressed water-resistant anti-collapse concrete pipe pile
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGSHENG TECHNOLOGY (NINGXIA) CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-16
Smart Images

Figure CN224363295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete pipe pile technology, and in particular to a prestressed water-resistant and anti-collapse concrete pipe pile. Background Technology
[0002] In the field of civil engineering, concrete pipe piles are widely used in various foundation projects, especially in water conservancy, transportation, and underground pipeline construction, where their performance directly affects the safety and durability of the project. With the continuous improvement of infrastructure construction demands, higher requirements are being placed on the waterproofing, corrosion resistance, and structural stability of concrete pipe piles. Developing a prestressed, water-resistant, and collapse-resistant concrete pipe pile has become a key direction for the industry's development.
[0003] Currently, the waterproofing design of traditional concrete pipe piles mostly relies on a single sealing material or coating, such as simply applying waterproof paint or setting a single-layer sealing ring. Corrosion protection measures often involve wrapping ordinary concrete with a thin anti-corrosion layer, and structural reinforcement relies solely on foundation reinforcement. Its working principle is to use sealing materials to fill joints and block moisture, an anti-corrosion layer to isolate external corrosive media, and foundation reinforcement to enhance the strength of the pipe pile, but it lacks a systematic protection and reinforcement design.
[0004] However, in practical applications, existing concrete pipe piles struggle to simultaneously meet the multiple requirements of waterproofing, corrosion prevention, and structural stability in complex environments. A single waterproofing structure cannot withstand long-term water pressure and environmental erosion. In environments with abundant groundwater or acidic / alkaline conditions, moisture easily seeps into the pipe pile through the joints, accelerating steel corrosion and reducing structural strength. Ordinary anti-corrosion layers lack sufficient corrosion resistance in highly corrosive environments such as chemical and petroleum industries, leading to premature damage to the pipe piles. Furthermore, the foundation reinforcement design fails to effectively enhance the prestress of the pipe piles, posing a risk of collapse under heavy loads and significantly increasing maintenance costs and safety hazards. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a prestressed water-resistant and anti-collapse concrete pipe pile, which aims to improve the problem that existing concrete pipe piles are unable to simultaneously meet the multiple requirements of waterproofing, corrosion prevention and structural stability in complex environments.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a prestressed water-resistant and collapse-proof concrete pipe pile, comprising a first concrete pipe pile, a second concrete pipe pile at one end of the first concrete pipe pile, and connecting members fixedly connected to both ends of the first and second concrete pipe piles. A sealing ring is slidably connected inside the connecting member, a limit ring is fixedly connected to the outer wall of the sealing ring, a sliding rod is slidably connected inside the sealing ring, a spring is sleeved on the outer wall of the sliding rod, and a protective component is provided inside the first concrete pipe pile.
[0007] The protective component includes an anti-permeability layer and an anti-corrosion sleeve. The anti-permeability layer is disposed inside the concrete pipe pile, and the anti-corrosion sleeve is disposed on the outer wall of the concrete pipe pile. The concrete pipe pile has reinforcing steel bars inside and a reinforcing lining on the inner side of the concrete pipe pile.
[0008] Furthermore, a rotating shaft is fixedly connected to the outer wall of the connector, a positioning connecting plate is rotatably connected to the inner wall of the rotating shaft, and a sliding column is slidably connected inside the positioning connecting plate.
[0009] Furthermore, a limit plate is fixedly connected to one end of the sliding column, and a hinge is fixedly connected to the other end of the sliding column.
[0010] Furthermore, a second positioning connecting plate is fixedly connected to the outer wall of the hinge, and a fixing component is provided inside the second positioning connecting plate.
[0011] Furthermore, the fixing component includes a bolt and a nut. The outer wall of the bolt extends sequentially into the interior of the first positioning connecting plate, the connecting piece, and the second positioning connecting plate. The inner wall of the nut is threadedly connected to one end of the bolt. A washer is provided between the nut and the second positioning connecting plate.
[0012] Furthermore, both the first positioning connecting plate and the second positioning connecting plate are attached to the outer wall of the connector, and the first positioning connecting plate and the second positioning connecting plate are used to position the connector.
[0013] Furthermore, one end of the spring is fixedly connected inside the connector, and the other end of the spring is fixedly connected inside the sealing ring.
[0014] Furthermore, one end of the slide rod is fixedly connected inside the connector, and the slide rod is used to guide the extension and retraction of the spring.
[0015] Furthermore, the outer wall of the limiting ring is slidably connected inside the connector, and the limiting ring is used to limit the sealing ring.
[0016] Furthermore, the outer wall of the limiting plate is slidably connected to the inside of the positioning connecting plate, and the limiting plate is used to limit the sliding column.
[0017] This utility model has the following beneficial effects:
[0018] 1. In this utility model, the sealing ring at the connector is tightly pressed against the inner wall under the elastic action of the spring, combined with the uniformly distributed anti-permeability layer inside the pipe pile, forming a double waterproof barrier that effectively prevents water infiltration. The external anti-corrosion sleeve can resist the erosion of highly corrosive environments such as chemicals and petroleum, significantly extending the service life of the pipe pile and reducing maintenance costs. At the same time, the setting of reinforcing steel bars and reinforcing lining inside the pipe pile enhances prestress, improves structural stability, and prevents the risk of collapse, making it suitable for engineering scenarios with high requirements for waterproofing, corrosion resistance, and structural strength.
[0019] 2. In this utility model, the positioning connecting plate is rotated and fitted by a rotating shaft, and the sliding column of the elastic adjustment component adaptively adjusts the connection thickness. This allows for rapid installation without complex measurements, reducing on-site welding work and lowering construction costs. The bolt and nut tightening method ensures connection stability, avoiding leakage risks caused by connection errors. It also facilitates frequent disassembly and replacement of pipe piles in complex environments, improving maintenance convenience and providing an efficient and reliable solution for engineering construction and subsequent maintenance. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a prestressed water-resistant and collapse-proof concrete pipe pile proposed in this utility model;
[0021] Figure 2 This is a schematic diagram of one side of the connector structure of a prestressed water-resistant and collapse-proof concrete pipe pile proposed in this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of a connector for a prestressed water-resistant and collapse-proof concrete pipe pile proposed in this utility model.
[0023] Figure 4 This is a schematic diagram of one side structure of a positioning connection plate for a prestressed water-resistant and collapse-proof concrete pipe pile proposed in this utility model.
[0024] Figure 5 This is a schematic diagram of the internal structure of a prestressed water-resistant and collapse-proof concrete pipe pile proposed in this utility model.
[0025] Legend:
[0026] 1. Concrete pipe pile one; 2. Concrete pipe pile two; 3. Connector; 4. Rotating shaft; 5. Positioning connecting plate one; 6. Sliding column; 7. Hinge; 8. Positioning connecting plate two; 9. Bolt; 10. Nut; 11. Washer; 12. Sealing ring; 13. Limiting ring; 14. Sliding rod; 15. Spring; 16. Anti-permeability layer; 17. Anti-corrosion sleeve; 18. Limiting plate; 19. Reinforcing steel bar; 20. Reinforcing lining. Detailed Implementation
[0027] 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.
[0028] Reference Figure 1 - Figure 5 An embodiment of this utility model is provided: a prestressed water-resistant and anti-collapse concrete pipe pile, including a concrete pipe pile 1, a concrete pipe pile 2 at one end of the concrete pipe pile 1, a connector 3 fixedly connected to both ends of the concrete pipe pile 1 and the concrete pipe pile 2, a sealing ring 12 slidably connected inside the connector 3, a limit ring 13 fixedly connected to the outer wall of the sealing ring 12, a sliding rod 14 slidably connected inside the sealing ring 12, a spring 15 sleeved on the outer wall of the sliding rod 14, and a protective component provided inside the concrete pipe pile 1.
[0029] The protective components include an anti-permeability layer 16 and an anti-corrosion sleeve 17. The anti-permeability layer 16 is disposed inside the concrete pipe pile 1, and the anti-corrosion sleeve 17 is sleeved on the outer wall of the concrete pipe pile 1. The concrete pipe pile 1 is provided with reinforcing steel bars 19 inside, and a reinforcing lining 20 is provided on the inner side of the concrete pipe pile 1. One end of the spring 15 is fixedly connected to the inside of the connector 3, and the other end of the spring 15 is fixedly connected to the inside of the sealing ring 12. One end of the slide rod 14 is fixedly connected to the inside of the connector 3, and the slide rod 14 is used to guide the extension and retraction of the spring 15. The outer wall of the limiting ring 13 is slidably connected to the inside of the connector 3, and the limiting ring 13 is used to limit the sealing ring 12. The outer wall of the limiting plate 18 is slidably connected to the inside of the positioning connecting plate 5, and the limiting plate 18 is used to limit the sliding column 6.
[0030] Specifically, when concrete pipe piles are used, the core connection and protection process is crucial. First, the connector 3 of concrete pipe pile 1 and concrete pipe pile 2 is fitted together. As they are tightly joined, the special structural design of connector 3 comes into play, causing the sealing ring 12 on both sides to automatically move inwards. At this time, the spring 15, with its excellent elastic properties, powerfully pushes the sealing ring 12 tightly against the inner wall of connector 3, forming a tight waterproof barrier, effectively preventing water seepage at the connection point. Furthermore, concrete pipe pile 1 is meticulously designed. Its internal high-efficiency anti-permeability layer 16, through careful planning and a uniform and reasonable insulation material thickness, further enhances waterproof performance, effectively preventing water penetration in all directions and at multiple levels. On the outside of the pipe pile, a professional anti-corrosion sleeve 17 is used. This sleeve provides comprehensive, all-around anti-corrosion protection for concrete pipe pile 1 in highly corrosive environments such as chemical and petroleum industries, greatly enhancing the pipe pile's corrosion resistance, thereby significantly extending its service life and significantly reducing later maintenance costs. Finally, the reinforcing steel bars 19 and the reinforcing lining 20 configured inside the concrete pipe pile 1 and concrete pipe pile 2 work together to effectively improve the overall prestress of the pipe pile, enhance the structural stability, and effectively prevent the pipe pile from collapsing and other safety hazards, thus laying a solid foundation for the quality of the project.
[0031] Reference Figure 1 - Figure 5 A rotating shaft 4 is fixedly connected to the outer wall of the connector 3. A positioning connecting plate 5 is rotatably connected to the inner wall of the rotating shaft 4. A sliding column 6 is slidably connected inside the positioning connecting plate 5. A limit plate 18 is fixedly connected to one end of the sliding column 6. A hinge 7 is fixedly connected to the other end of the sliding column 6. A positioning connecting plate 8 is fixedly connected to the outer wall of the hinge 7. A fixing component is provided inside the positioning connecting plate 8. The fixing component includes a bolt 9 and a nut 10. The outer wall of the bolt 9 passes through the interior of the positioning connecting plate 5, the connector 3, and the positioning connecting plate 8 in sequence. The inner wall of the nut 10 is threadedly connected to one end of the bolt 9. A washer 11 is provided between the nut 10 and the positioning connecting plate 8. The positioning connecting plate 5 and the positioning connecting plate 8 are both attached to the outer wall of the connector 3. The positioning connecting plate 5 and the positioning connecting plate 8 are used to position the connector 3.
[0032] Specifically, when connecting concrete pipe pile 1 and concrete pipe pile 2, firstly, the rotating shaft 4 is operated. The rotation of the shaft 4 drives the positioning connecting plate 5 to rotate, allowing it to move smoothly to the periphery of the connector 3, completing the initial positioning. Then, the positioning connecting plate 8 is pulled, and with the flexible rotation of the hinge 7, it is tightly fitted to the other side of the connector 3, thus achieving rapid positioning and precise docking of the pipe piles. Next, bolts 9 are used to pass through the positioning connecting plate 5, connector 3, and positioning connecting plate 8, followed by tightening with nuts 10 and washers 11. These multiple fixing methods ensure the strong and stable connection. Throughout the connection process, the elastic adjustment component sliding column 6 equipped with positioning connecting plate 8 plays a crucial role. It can flexibly extend and adjust according to the actual thickness of the connector 3, further improving the stability and adaptability of the connection and greatly increasing the installation speed. This innovative connection method reduces on-site welding work, lowers construction costs, and effectively avoids the risk of leakage caused by unstable or incorrect connections, thereby enhancing the safety and reliability of the pipe piles. It is especially suitable for pipe pile scenarios that require frequent disassembly or replacement in complex environments, and greatly improves the convenience and economy of maintenance.
[0033] Working principle: When concrete pipe piles are needed, the connector 3 of concrete pipe pile 1 and concrete pipe pile 2 is first attached. As concrete pipe pile 1 and concrete pipe pile 2 are tightly connected, the sealing ring 12 on both sides of the connector 3 will automatically move into the inside of the connector 3. At this time, the spring 15 pushes the sealing ring 12 tightly against the inner wall of the connector 3 through its elasticity, ensuring its waterproof effect. In addition, a high-efficiency anti-permeability layer 16 is set inside the concrete pipe pile 1. Through reasonable layout and uniform thickness of insulation material, it effectively prevents water penetration. The outside is covered with an anti-corrosion sleeve 17, which provides all-round anti-corrosion protection for the concrete pipe pile 1. Especially in highly corrosive environments such as chemical and petroleum, it can greatly extend the service life of the pipe pile and reduce maintenance costs. Finally, the reinforcing steel bars 19 and reinforcing lining 20 inside the concrete pipe pile 1 and concrete pipe pile 2 effectively improve its prestress and prevent collapse.
[0034] Furthermore, when connecting concrete pipe pile 1 to concrete pipe pile 2, the positioning connecting plate 5 is first rotated by the rotating shaft 4, moving it to the periphery of the connector 3. Then, the positioning connecting plate 8 is pulled, and the hinge 7 is rotated to make it tightly fit with the other side of the connector 3, thus achieving rapid positioning and precise docking of the pipe pile. Next, bolts 9 are used to pass through the positioning connecting plate 5, connector 3, and positioning connecting plate 8 to fix them together. Finally, nuts 10 and washers 11 are used to tighten the connection, ensuring its stability. Throughout the process, the positioning connecting plate 8, through the action of the elastic adjustment component sliding column 6, can extend and adjust according to the thickness of the connector 3, further improving the stability and adaptability of the connection, increasing the installation speed, reducing on-site welding operations, lowering construction costs, and effectively avoiding the risk of leakage caused by unstable or incorrect connections. This enhances the safety and reliability of the pipe pile, making it particularly suitable for pipe piles that require frequent disassembly or replacement in complex environments, improving the convenience and economy of maintenance.
[0035] 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. A prestressed water-resistant and anti-collapse concrete pipe pile, comprising a concrete pipe pile (1), characterized in that: One end of the concrete pipe pile one (1) is provided with a concrete pipe pile two (2). Both ends of the concrete pipe pile one (1) and the concrete pipe pile two (2) are fixedly connected with connectors (3). A sealing ring (12) is slidably connected inside the connector (3). A limit ring (13) is fixedly connected to the outer wall of the sealing ring (12). A sliding rod (14) is slidably connected inside the sealing ring (12). A spring (15) is sleeved on the outer wall of the sliding rod (14). A protective component is provided inside the concrete pipe pile one (1). The protective component includes an anti-permeability layer (16) and an anti-corrosion sleeve (17). The anti-permeability layer (16) is disposed inside the concrete pipe pile (1), and the anti-corrosion sleeve (17) is sleeved on the outer wall of the concrete pipe pile (1). The concrete pipe pile (1) is provided with reinforcing steel bars (19) inside, and a reinforcing lining (20) is provided on the inner side of the concrete pipe pile (1).
2. The prestressed water-resistant and anti-collapse concrete pipe pile according to claim 1, characterized in that: The outer wall of the connector (3) is fixedly connected to a rotating shaft (4), the inner wall of the rotating shaft (4) is rotatably connected to a positioning connecting plate (5), and the inner wall of the positioning connecting plate (5) is slidably connected to a sliding column (6).
3. The prestressed water-resistant and anti-collapse concrete pipe pile according to claim 2, characterized in that: One end of the sliding column (6) is fixedly connected to a limiting plate (18), and the other end of the sliding column (6) is fixedly connected to a hinge (7).
4. A prestressed water-resistant and anti-collapse concrete pipe pile according to claim 3, characterized in that: The outer wall of the hinge (7) is fixedly connected to a positioning connecting plate two (8), and a fixing component is provided inside the positioning connecting plate two (8).
5. A prestressed water-resistant and anti-collapse concrete pipe pile according to claim 4, characterized in that: The fixing assembly includes a bolt (9) and a nut (10). The outer wall of the bolt (9) passes through the interior of the first positioning connecting plate (5), the connector (3) and the second positioning connecting plate (8) in sequence. The inner wall of the nut (10) is threaded to one end of the bolt (9). A washer (11) is provided between the nut (10) and the second positioning connecting plate (8).
6. A prestressed water-resistant and anti-collapse concrete pipe pile according to claim 3, characterized in that: The positioning connecting plate one (5) and the positioning connecting plate two (8) are both attached to the outer wall of the connector (3). The positioning connecting plate one (5) and the positioning connecting plate two (8) are used to position the connector (3).
7. A prestressed water-resistant and collapse-proof concrete pipe pile according to claim 1, characterized in that: One end of the spring (15) is fixedly connected to the inside of the connector (3), and the other end of the spring (15) is fixedly connected to the inside of the sealing ring (12).
8. A prestressed water-resistant and collapse-proof concrete pipe pile according to claim 1, characterized in that: One end of the slide rod (14) is fixedly connected inside the connector (3), and the slide rod (14) is used to guide the extension and retraction of the spring (15).
9. A prestressed water-resistant and collapse-proof concrete pipe pile according to claim 1, characterized in that: The outer wall of the limiting ring (13) is slidably connected inside the connector (3), and the limiting ring (13) is used to limit the sealing ring (12).
10. A prestressed water-resistant and collapse-proof concrete pipe pile according to claim 3, characterized in that: The outer wall of the limiting plate (18) is slidably connected to the inside of the positioning connecting plate (5), and the limiting plate (18) is used to limit the sliding column (6).