Steel wire mesh skeleton plastic composite pipe convenient to install
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TENGYUAN PIPE IND CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-26
Smart Images
Figure CN224414546U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pipe technology, specifically to a steel wire mesh reinforced plastic composite pipe that is easy to install. Background Technology
[0002] Steel wire mesh reinforced plastic composite pipe is an improved new type of steel-reinforced plastic composite pipe. Also known as SRTP pipe, it is widely used in long-distance buried fluid pipeline systems. This new type of pipe uses a high-strength, overmolded steel wire mesh skeleton and thermoplastic polyethylene as raw materials. The steel wire mesh serves as the reinforcing skeleton of the polyethylene plastic pipe, with high-density polyethylene (HDPE) as the matrix. High-performance HDPE modified bonding resin is used to tightly connect the steel wire skeleton to the inner and outer layers of high-density polyethylene, resulting in excellent composite performance. Because the high-strength steel wire reinforcement is encased in continuous thermoplastic plastic, this composite pipe overcomes the shortcomings of both steel and plastic pipes while retaining their respective advantages.
[0003] A steel wire mesh-reinforced plastic composite pipe assembly is mentioned in an existing Chinese patent (authorization announcement number: CN219472975U). It includes an inner tube, a steel wire mesh body sleeved on the outside of the inner tube, an outer tube sleeved on the outside of the steel wire mesh body, a protruding ring sleeved in the middle of the outer tube, an embedded ring fixed at the front end of the outer tube, and an inner cavity inside the outer tube. In actual use, the user first places the outer tube on the ground, then inserts the embedded ring into the slot. When the locking pin engages inside the slot, two identical outer tubes can be engaged end-to-end, enabling quick connection of two identical composite pipes. When the locking pin engages inside the slot, the sealing ring seals the gap between the embedded ring and the slot, preventing gaps when the two outer tubes are connected. At this time, the inner tubes inside the two outer tubes can also abut against each other, allowing communication between the inner cavities of the inner tubes inside the two outer tubes.
[0004] The existing steel wire mesh reinforced plastic composite pipe installation involves placing two pipes end to end, inserting the first end of one pipe into the second, and installing them using a snap-fit method. This increases the installation speed. However, the existing snap-fit installation method requires aligning the snap-fit positions and then pushing one side of the pipe to engage the snap-fit part into the slot. On-site installation often requires manual pushing and a large amount of manpower for splicing. Furthermore, the difficulty of this installation method increases with the weight of the pipes. Summary of the Invention
[0005] The purpose of this application is to address the problem that the installation difficulty increases with the weight of the existing steel wire mesh reinforced plastic composite pipes during interlocking installation. This application provides a steel wire mesh reinforced plastic composite pipe that is easy to install.
[0006] To achieve the above objectives, this application specifically adopts the following technical solution:
[0007] A steel wire mesh reinforced plastic composite pipe that is easy to install includes a polyethylene outer tube, an adhesive layer one fixedly connected to the inner side of the polyethylene outer tube, a high-strength plastic-coated steel wire mesh fixedly connected to the inner side of the adhesive layer one, an adhesive layer two fixedly connected to the inner side of the high-strength plastic-coated steel wire mesh, a polyethylene inner tube fixedly connected to the inner side of the adhesive layer two, a connecting ring fixedly connected to the end of the polyethylene outer tube, and an installation structure provided between the end of the polyethylene outer tube near the connecting ring and the connecting ring.
[0008] By adopting the above technical solution, when installing the steel wire mesh skeleton plastic composite pipe, first place two different composite pipes in the same place, and bring their head ends close together. Then, insert the end without the connecting ring into the connecting ring, and rotate the inserted composite pipe counterclockwise so that one end of the installation structure abuts against the connecting ring on the other composite pipe, thus fixing the two sets of composite pipes together. Then, fix the connection between the two composite pipes with bolts. This makes the installation of the device less dynamic, easier, and more secure.
[0009] Furthermore, the installation structure includes a connecting pipe fixedly connected to one end of the polyethylene outer tube near the connecting ring. The connecting pipe has the same diameter as the polyethylene inner tube, and the inner diameter of the connecting ring is larger than the outer diameter of the connecting pipe.
[0010] By adopting the above technical solution, the connecting pipe is also inserted into the connecting ring, and the connecting ring abuts against the polyethylene inner layer pipe, thereby completing the initial connection between the two pipes.
[0011] Furthermore, an L-shaped limiting block is fixedly connected to the outside of the connecting pipe, and an L-shaped limiting groove is formed on the outer surface of the connecting ring. The L-shaped limiting groove is adapted to the L-shaped limiting block, and an inner groove is formed at the bottom of the L-shaped limiting groove. The inner groove has the same shape as the L-shaped limiting groove, and the plane position of the inner groove is the same as the plane position of the L-shaped limiting groove rotated counterclockwise eight degrees along the connecting pipe.
[0012] By adopting the above technical solution, the L-shaped limiting block on the connecting pipe corresponds to the L-shaped limiting groove on the connecting ring. Then, the L-shaped limiting block is inserted into the L-shaped limiting groove. Subsequently, the pipe inserted into the connecting pipe is rotated to rotate counterclockwise by eight degrees. At this time, the end of the L-shaped limiting block moves along the L-shaped limiting groove into the inner groove, thereby strengthening the connection effect between the two pipes.
[0013] Furthermore, a semi-circular limiting groove is provided on the side of the L-shaped limiting block near the inner groove, and a sliding column is slidably connected to the side of the inner groove near the semi-circular limiting block. The end of the sliding column is fixedly connected to the semi-circular limiting block, and the semi-circular limiting block is adapted to the semi-circular limiting groove.
[0014] By adopting the above technical solution, when the pipeline rotates counterclockwise by eight degrees, the end of the L-shaped limiting block moves along the L-shaped limiting groove into the inner groove. As the L-shaped limiting block moves, the semi-circular limiting groove moves and aligns horizontally with the semi-circular limiting block. At this time, the semi-circular limiting block moves into the semi-circular limiting groove along the sliding column direction.
[0015] Furthermore, a spring is fitted onto the sliding column, and both ends of the spring are fixedly connected to the semi-circular limiting block and the connecting ring, respectively.
[0016] By adopting the above technical solution, the spring reset pushes the semicircular limiting block to move along the sliding column direction into the semicircular limiting groove, and the semicircular limiting block abuts against the semicircular limiting groove, thereby ensuring the connection stability between the connecting pipe and the connecting ring.
[0017] Furthermore, a fixing ring is fixedly connected at the connection between the connecting ring and the polyethylene outer tube, and a connecting plate is fixedly connected at the end of the polyethylene outer tube away from the connecting ring. A fixing bolt is threaded on the outer surface of the connecting plate, and a threaded groove is formed on the outer surface of the fixing ring. The fixing bolt is adapted to the threaded groove.
[0018] By adopting the above technical solution, when the connecting plate moves between the arc plates, the connecting plate and the arc plates are fixed together by rotating the fixing bolts, which improves the stability of the pipe connection.
[0019] Furthermore, an arc-shaped plate is fixedly connected to the outside of the fixing ring, and four arc-shaped plates are distributed in a circle on the outside of the fixing ring. The connecting plate is a polyethylene plate, and four connecting plates are distributed in a circle at the end of the polyethylene outer tube. Arc-shaped grooves are opened on both sides of the end of the connecting plate, and the arc-shaped grooves and arc-shaped blocks are horizontally staggered.
[0020] By adopting the above technical solution, when the pipes are installed together, as the connecting pipe is inserted into the connecting ring, the connecting plate also moves towards the fixed ring. As the connecting pipe rotates, the connecting plate rotates along the fixed ring until it moves between the two arc-shaped plates. At this time, the arc-shaped groove and the arc-shaped block cooperate with each other to reduce the resistance when the connecting plate moves and assist the connecting plate to move to the accurate position.
[0021] Furthermore, a waterproof and antibacterial layer is fixedly connected to the inner wall of the polyethylene inner tube, and the waterproof and antibacterial layer is a polyurethane coating.
[0022] By adopting the above technical solution, the waterproof and antibacterial layer installed on the inner wall of the polyethylene inner tube can reduce the wear and erosion of the inner wall of the pipe by the liquid during the transportation of liquid, thereby improving the durability of the pipe.
[0023] In summary, this application includes at least one of the following beneficial effects;
[0024] 1. In this application, when installing between two pipes, the L-shaped limiting block on the connecting pipe is first aligned with the L-shaped limiting groove on the connecting ring. Then, the L-shaped limiting block is inserted into the L-shaped limiting groove, and the connecting pipe is also inserted into the connecting ring. The ring is rotated counterclockwise by eight degrees. At this time, the end of the L-shaped limiting block moves along the L-shaped limiting groove into the inner groove. As the L-shaped limiting block moves, the semi-circular limiting groove moves and aligns horizontally with the semi-circular limiting block. At this time, the spring returns and pushes the semi-circular limiting block along the sliding column direction into the semi-circular limiting groove. The semi-circular limiting block then abuts against the semi-circular limiting groove, thereby ensuring the connection stability between the connecting pipe and the connecting ring. This also reduces the installation movement between pipes, eliminating the problem in existing pipe installations where multiple people need to move the pipe ends and apply force from both sides to insert one end until it is jammed. This device, which is larger and heavier, can be installed easily and is more reliable than fixed installations.
[0025] 2. In this application, when pipes are installed together, as the connecting pipe is inserted into the connecting ring, the connecting plate also moves towards the fixed ring. As the connecting pipe rotates, the connecting plate rotates along the fixed ring until it moves between the two arc-shaped plates. At this time, the arc-shaped groove and the arc-shaped block cooperate with each other to reduce the resistance when the connecting plate moves and assist the connecting plate to move to the accurate position. When the connecting plate moves between the arc-shaped plates, the connecting plate and the arc-shaped plates are fixed together by rotating the fixing bolts. This improves the stability of the pipe connection and makes the installation process more convenient. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of a steel wire mesh reinforced plastic composite pipe that is easy to install, according to this application;
[0027] Figure 2This is a schematic diagram of a connecting ring structure for a steel wire mesh reinforced plastic composite pipe that is easy to install, as described in this application.
[0028] Figure 3 This is a partial sectional view of a steel wire mesh reinforced plastic composite pipe that is easy to install, as described in this application.
[0029] Figure 4 This is a schematic diagram of the internal structure of a connecting ring for a steel wire mesh reinforced plastic composite pipe that is easy to install, as described in this application.
[0030] Figure 5 This is a schematic diagram of the connecting pipe structure of a steel wire mesh reinforced plastic composite pipe that is easy to install, according to this application;
[0031] Figure 6 It is in this application Figure 3 Enlarged view of point A in the middle;
[0032] Figure 7 It is in this application Figure 5 Enlarged diagram of point B in the middle.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. Polyethylene outer tube; 2. Connecting ring; 3. Polyethylene inner tube; 4. Arc plate; 5. Fixing ring; 6. L-shaped limiting groove; 7. Waterproof and antibacterial layer; 8. Connecting plate; 9. Fixing bolt; 10. Connecting tube; 11. L-shaped limiting block; 12. Inner groove; 13. Semi-circular limiting groove; 14. Sliding column; 15. Spring; 16. Semi-circular limiting block; 17. Arc groove; 18. Adhesive layer one; 19. High-strength plastic-coated steel wire mesh; 20. Adhesive layer two. Detailed Implementation
[0035] The following will refer to the embodiments of this utility model. Figures 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and 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 protection scope of this utility model.
[0036] Reference Figure 1 and Figure 2This utility model provides a technical solution: a steel wire mesh skeleton plastic composite pipe that is easy to install, including a polyethylene outer tube 1, an adhesive layer 18 fixedly connected to the inner side of the polyethylene outer tube 1, a high-strength plastic-coated steel wire mesh 19 fixedly connected to the inner side of the adhesive layer 18, an adhesive layer 20 fixedly connected to the inner side of the high-strength plastic-coated steel wire mesh 19, a polyethylene inner tube 3 fixedly connected to the inner side of the adhesive layer 20, a connecting ring 2 fixedly connected to the end of the polyethylene outer tube 1, and an installation structure provided between the end of the polyethylene outer tube 1 near the connecting ring 2 and the connecting ring 2.
[0037] When installing the steel wire mesh reinforced plastic composite pipe, first place two different composite pipes in the same place, with their ends close together. Then, insert the end without the connecting ring 2 into the connecting ring 2, and rotate the inserted composite pipe counterclockwise so that one end of the installation structure abuts against the connecting ring 2 on the other composite pipe, thus fixing the two sets of composite pipes together. Then, fix the connection between the two composite pipes with bolts. This makes the installation of the device less dynamic, easier, and more secure.
[0038] Reference Figure 3 and Figure 5 , Figure 6 , Figure 7 The installation structure includes a connecting pipe 10 fixedly connected to one end of the outer polyethylene tube 1 near the connecting ring 2. The connecting pipe 10 has the same diameter as the inner polyethylene tube 3, and the inner diameter of the connecting ring 2 is larger than the outer diameter of the connecting pipe 10. An L-shaped limiting block 11 is fixedly connected to the outside of the connecting pipe 10. An L-shaped limiting groove 6 is formed on the outer surface of the connecting ring 2. The L-shaped limiting groove 6 is adapted to the L-shaped limiting block 11. An inner groove 12 is formed at the bottom of the L-shaped limiting groove 6. The inner groove 12 has the same shape as the L-shaped limiting groove 6, and the plane position of the inner groove 12 is the same as the plane position of the L-shaped limiting groove 6 rotated counterclockwise by eight degrees along the connecting pipe 10. The L-shaped limiting block 11 has a semi-circular limiting groove 13 on the side near the inner groove 12. A sliding post 14 is slidably connected to the side of the inner groove 12 near the semi-circular limiting block 16. The end of the sliding post 14 is fixedly connected to the semi-circular limiting block 16, and the semi-circular limiting block 16 is adapted to the semi-circular limiting groove 13. A spring 15 is sleeved on the sliding post 14, and the two ends of the spring 15 are fixedly connected to the semi-circular limiting block 16 and the connecting ring 2, respectively.
[0039] When installing between two pipes, first align the L-shaped limiting block 11 on the connecting pipe 10 with the L-shaped limiting groove 6 on the connecting ring 2. Then, insert the L-shaped limiting block 11 into the L-shaped limiting groove 6, and simultaneously insert the connecting pipe 10 into the connecting ring 2. As the L-shaped limiting block 11 abuts against the bottom end of the L-shaped limiting groove 6, the connecting ring 2 also abuts against the polyethylene inner layer pipe 3, thus completing the initial connection between the two pipes. Then, rotate the pipe inserted into the connecting pipe 10, turning it counterclockwise by eight degrees. At this point, the L-shaped limiting block... The end of block 11 moves along the L-shaped limiting groove 6 into the inner groove 12. As the L-shaped limiting block 11 moves, the semi-circular limiting groove 13 moves and aligns horizontally with the semi-circular limiting block 16. At this time, the spring 15 resets and pushes the semi-circular limiting block 16 to move along the direction of the sliding column 14 into the semi-circular limiting groove 13. The semi-circular limiting block 16 then abuts against the semi-circular limiting groove 13, thereby ensuring the connection stability between the connecting pipe 10 and the connecting ring 2. This also makes the installation movement between the pipes smaller, the installation more convenient, and the fixation more secure.
[0040] Reference Figure 1 and Figure 5 , Figure 7 The installation structure includes a fixing ring 5 fixedly connected to the connection between the connecting ring 2 and the polyethylene outer tube 1. A connecting plate 8 is fixedly connected to the end of the polyethylene outer tube 1 away from the connecting ring 2. A fixing bolt 9 is threaded on the outer surface of the connecting plate 8. A threaded groove is formed on the outer surface of the fixing ring 5, and the fixing bolt 9 is adapted to the threaded groove. An arc-shaped plate 4 is fixedly connected to the outside of the fixing ring 5. Four arc-shaped plates 4 are circumferentially distributed on the outside of the fixing ring 5. The connecting plate 8 is a polyethylene plate. Four connecting plates 8 are circumferentially distributed at the end of the polyethylene outer tube 1. Arc-shaped grooves 17 are formed on both sides of the end of the connecting plate 8. The arc-shaped grooves 17 and the arc-shaped blocks are horizontally staggered.
[0041] When pipes are installed together, as the connecting pipe 10 is inserted into the connecting ring 2, the connecting plate 8 also moves towards the fixing ring 5. As the connecting pipe 10 rotates, the connecting plate 8 rotates along the fixing ring 5 until it moves between the two arc plates 4. At this time, the arc groove 17 and the arc block cooperate to reduce the resistance when the connecting plate 8 moves and assist the connecting plate 8 to move to the accurate position. When the connecting plate 8 moves between the arc plates 4, the connecting plate 8 and the arc plate 4 are fixed together by rotating the fixing bolt 9. This improves the stability of the pipe connection and makes the installation process more convenient.
[0042] Reference Figure 2 The inner wall of the polyethylene inner tube 3 is fixedly connected to a waterproof and antibacterial layer 7, which is a polyurethane coating.
[0043] By installing a waterproof and antibacterial layer 7 on the inner wall of the polyethylene inner tube 3, the wear and erosion of the inner wall of the pipe by the liquid during the transportation of liquid can be reduced, thereby improving the durability of the pipe.
[0044] Working principle: When installing between two pipes, first align the L-shaped limiting block 11 on the connecting pipe 10 with the L-shaped limiting groove 6 on the connecting ring 2. Then, insert the L-shaped limiting block 11 into the L-shaped limiting groove 6, and simultaneously insert the connecting pipe 10 into the connecting ring 2. As the L-shaped limiting block 11 abuts against the bottom end of the L-shaped limiting groove 6, the connecting ring 2 also abuts against the polyethylene inner layer pipe 3, thus completing the initial connection between the two pipes. Then, rotate the pipe inserted into the connecting pipe 10, turning it counterclockwise by eight degrees. At this point, the L... The end of the L-shaped limiting block 11 moves along the L-shaped limiting groove 6 into the inner groove 12. As the L-shaped limiting block 11 moves, the semi-circular limiting groove 13 moves and aligns horizontally with the semi-circular limiting block 16. At this time, the spring 15 resets and pushes the semi-circular limiting block 16 to move along the direction of the sliding column 14 into the semi-circular limiting groove 13. The semi-circular limiting block 16 then abuts against the semi-circular limiting groove 13, thereby ensuring the connection stability between the connecting pipe 10 and the connecting ring 2. This also makes the installation movement between the pipes smaller, the installation more convenient, and the fixation more reliable.
[0045] When pipes are installed together, as the connecting pipe 10 is inserted into the connecting ring 2, the connecting plate 8 also moves towards the fixing ring 5. As the connecting pipe 10 rotates, the connecting plate 8 rotates along the fixing ring 5 until it moves between the two arc plates 4. At this time, the arc groove 17 and the arc block cooperate to reduce the resistance when the connecting plate 8 moves and assist the connecting plate 8 to move to the accurate position. When the connecting plate 8 moves between the arc plates 4, the connecting plate 8 and the arc plate 4 are fixed together by rotating the fixing bolt 9. This improves the stability of the pipe connection and makes the installation process more convenient.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A steel wire mesh reinforced plastic composite pipe that is easy to install, comprising a polyethylene outer pipe (1), characterized in that: An adhesive layer (18) is fixedly connected to the inner side of the polyethylene outer tube (1). A high-strength plastic-coated steel wire mesh (19) is fixedly connected to the inner side of the adhesive layer (18). An adhesive layer (20) is fixedly connected to the inner side of the high-strength plastic-coated steel wire mesh (19). A polyethylene inner tube (3) is fixedly connected to the inner side of the adhesive layer (20). A connecting ring (2) is fixedly connected to the end of the polyethylene outer tube (1). An installation structure is provided between the end of the polyethylene outer tube (1) near the connecting ring (2) and the connecting ring (2).
2. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 1, characterized in that: The installation structure includes a connecting pipe (10) fixedly connected to one end of the polyethylene outer tube (1) near the connecting ring (2). The diameter of the connecting pipe (10) is the same as that of the polyethylene inner tube (3), and the inner diameter of the connecting ring (2) is larger than the outer diameter of the connecting pipe (10).
3. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 2, characterized in that: An L-shaped limiting block (11) is fixedly connected to the outside of the connecting pipe (10). An L-shaped limiting groove (6) is provided on the outer surface of the connecting ring (2). The L-shaped limiting groove (6) is adapted to the L-shaped limiting block (11). An inner groove (12) is provided at the bottom of the L-shaped limiting groove (6). The inner groove (12) has the same shape as the L-shaped limiting groove (6). The plane position of the inner groove (12) is the same as the plane position of the L-shaped limiting groove (6) rotated 8 degrees counterclockwise along the connecting pipe (10).
4. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 3, characterized in that: The L-shaped limiting block (11) has a semi-circular limiting groove (13) on the side near the inner groove (12). The inner groove (12) is slidably connected to a sliding column (14) on the side near the semi-circular limiting block (16). The end of the sliding column (14) is fixedly connected to the semi-circular limiting block (16). The semi-circular limiting block (16) is adapted to the semi-circular limiting groove (13).
5. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 4, characterized in that: A spring (15) is fitted on the sliding column (14), and the two ends of the spring (15) are fixedly connected to the semi-circular limiting block (16) and the connecting ring (2) respectively.
6. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 1, characterized in that: A fixing ring (5) is fixedly connected to the connection between the connecting ring (2) and the polyethylene outer tube (1). A connecting plate (8) is fixedly connected to the end of the polyethylene outer tube (1) away from the connecting ring (2). A fixing bolt (9) is threaded on the outer surface of the connecting plate (8). A threaded groove is opened on the outer surface of the fixing ring (5). The fixing bolt (9) is adapted to the threaded groove.
7. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 6, characterized in that: An arc-shaped plate (4) is fixedly connected to the outside of the fixed ring (5). The four arc-shaped plates (4) are distributed in a circle on the outside of the fixed ring (5). The connecting plate (8) is a polyethylene plate. The four connecting plates (8) are distributed in a circle at the end of the polyethylene outer tube (1). An arc-shaped groove (17) is opened on both sides of the end of the connecting plate (8). The arc-shaped groove (17) and the arc-shaped block are horizontally staggered.
8. The easily installable steel wire mesh reinforced plastic composite pipe according to claim 1, characterized in that: The inner wall of the polyethylene inner tube (3) is fixedly connected to a waterproof and antibacterial layer (7), which is a polyurethane coating.