A high performance composite pipe for trenchless rehabilitation and method of making the same

Abstract

The application relates to a repairing composite pipe, in particular to a high-performance composite pipe for trenchless repairing and a preparation method thereof, which comprises a plurality of supporting rings I, a plurality of circular-arc supporting plates I are fixedly connected to each supporting ring I, circular-arc insertion grooves I are formed among the plurality of circular-arc supporting plates I, and a limiting block I is fixedly connected to the side edge of each circular-arc supporting plate I; a composite pipe body is arranged between the two supporting rings I, a plurality of clamping plates are fixedly connected to the composite pipe body, each clamping plate can be inserted into the circular-arc supporting plate I through the circular-arc insertion groove I, and the clamping plate can be in contact with the limiting block I; the trenchless repairing mode can be adopted to replace the pipe at the specified position, the maintenance cost is reduced, and the pipe is convenient to use.

Description

Technical Field

[0001] This invention relates to repair composite pipes, and more specifically to a high-performance composite pipe for trenchless repair and its preparation method. Background Technology

[0002] Trenchless repair refers to repair work without excavation. This repair method is typically used when underground pipelines or other facilities need to be protected to avoid damage. For example, patent number CN104344152A discloses a trenchless pipeline repair device and method. The trenchless pipeline repair device includes a first sealing membrane and a second sealing membrane. The first and second sealing membranes are connected and sealed to form a closed annular cylindrical structure. The annular cylindrical structure is used to attach to the inner wall of the pipeline to be repaired, and a cavity layer is provided between the first and second sealing membranes. However, a drawback of this patent is that it cannot replace the pipe material at a specific location. Summary of the Invention

[0003] The purpose of this invention is to provide a high-performance composite pipe for trenchless repair and its preparation method, which can replace the pipe at a specified location in a trenchless repair manner, reducing maintenance costs and facilitating use.

[0004] The objective of this invention is achieved through the following technical solution: A high-performance composite pipe for trenchless repair includes multiple support rings I, each support ring I is fixedly connected to multiple arc support plates I, the multiple arc support plates I form an arc slot I, and each arc support plate I is fixedly connected to a limit stop I on its side. A composite tube is provided between the two support rings I. Multiple snap-fit ​​plates are fixedly connected to the composite tube. Each snap-fit ​​plate can pass through the arc slot I and be inserted into the arc support plate I. The snap-fit ​​plate can contact the limit stop I. One end of the composite tube has a rounded protrusion, and the other end has a rounded groove. Multiple composite tubes are joined together by the rounded protrusion and the rounded groove. The inner side of the composite tube is provided with multiple spiral protrusions; The composite tube body is made of rubber material; A method for preparing high-performance composite pipes for trenchless repair, the method comprising the following steps: Step 1: Fix multiple snap-fit ​​plates to the outside of the composite pipe body; Step 2: Pass multiple snap-fit ​​plates through multiple arc slots II in sequence, connect multiple snap-fit ​​plates to the upper side of multiple arc support plates II, and have multiple snap-fit ​​plates contact multiple limit blocks II respectively; Step 3: The cutting tool processes the interior of the composite tube to form spiral grooves; Step 4: Multiple injection molding pipes are used to injection mold the spiral groove to form a spiral protrusion.

[0005] A device for preparing high-performance composite pipes for trenchless repair includes a device support, a sliding support I fixedly connected to the device support, a lead screw I rotatably connected to the sliding support I, the threads at both ends of the lead screw I having opposite directions, a sliding support II fixedly connected to the device support, and a lead screw II rotatably connected to the sliding support II. A power mechanism I for rotating a drive screw I is fixedly connected to the sliding bracket I; the power mechanism I is preferably a servo motor. A power mechanism II for rotating a drive screw II is fixedly connected to the sliding bracket II. The power mechanism II is preferably a servo motor. Two clamping rings are slidably connected to the sliding bracket I. The two clamping rings are respectively threaded to both ends of the lead screw I. Each clamping ring is rotatably connected to a support ring II. Multiple arc support plates II are fixedly connected to each support ring II. The multiple arc support plates II form an arc slot II. Each support ring II is fixedly connected to a limit stop block II. A power mechanism Ⅲ for driving the support ring Ⅱ to rotate is fixedly connected to the clamping ring, and the power mechanism Ⅲ is preferably a servo motor; A machining bracket is slidably connected to the sliding bracket II, and the machining bracket is threadedly connected to the lead screw II; A support column is fixedly connected to the processing bracket, a mounting base I is fixedly connected to the support column, a telescopic mechanism I is fixedly connected to the mounting base I, and a cutting tool is rotatably connected to the telescopic end of the telescopic mechanism I. The telescopic end of the telescopic mechanism I is fixedly connected to a power mechanism IV that drives the cutting tool to rotate. The power mechanism IV is preferably a servo motor. A rotating disk is rotatably connected to the processing support, and a telescopic mechanism II is fixedly connected to the rotating disk. A mounting base II is fixedly connected to the telescopic end of the telescopic mechanism II. The rotating disk is rotatably connected to the support column, and multiple telescopic mechanisms III are fixedly connected to the mounting base II. An injection pipe is fixedly connected to the telescopic end of each telescopic mechanism III. A power mechanism V for driving the rotating disk is fixedly connected to the processing support. The power mechanism V is preferably a servo motor. Attached Figure Description

[0006] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0007] Figure 1 This is a schematic diagram of the method for preparing high-performance composite pipes for trenchless repair according to the present invention; Figure 2This is a schematic diagram of the high-performance composite pipe structure for trenchless repair according to the present invention; Figure 3 This is a schematic diagram of the support ring structure of the present invention; Figure 4 This is a schematic diagram of the composite tube structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the composite tube body of the present invention; Figure 6 This is a schematic diagram of the structure of the high-performance composite pipe preparation device for trenchless repair according to the present invention; Figure 7 This is a schematic diagram of the device support structure of the present invention; Figure 8 This is a schematic diagram of the clamping ring structure of the present invention; Figure 9 This is a schematic diagram of the processing support structure of the present invention; Figure 10 This is a schematic diagram of the cutting tool structure of the present invention.

[0008] In the picture: Support ring I11; Arc support plate I12; Limiting block I13; Composite tube body 21; snap-fit ​​plate 22; arc protrusion 23; arc groove 24; spiral protrusion 25; Device support 31; sliding support I 32; lead screw I 33; sliding support II 34; lead screw II 35; Clamping ring 41; Support ring II 42; Arc support plate II 43; Limiting block II 44; Processing bracket 51; Support column 61; Mounting base I 62; Telescopic mechanism I 63; Cutting tool 64; Rotating disc 71; Telescopic mechanism II 72; Mounting base II 73; Telescopic mechanism III 74; Injection pipe 75. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings.

[0010] like Figures 2 to 5 As shown below, the structure and function of a high-performance composite pipe for trenchless repair are described in detail. A high-performance composite pipe for trenchless repair includes multiple support rings I11, each support ring I11 is fixedly connected to multiple arc support plates I12, the multiple arc support plates I12 form an arc slot I, and each arc support plate I12 is fixedly connected to a limit stop I13 on its side. A composite tube 21 is provided between the two support rings I11. Multiple snap-fit ​​plates 22 are fixedly connected to the composite tube 21. Each snap-fit ​​plate 22 can pass through the arc slot I and be inserted into the arc support plate I12. The snap-fit ​​plate 22 can contact the limiting block I13. One end of the composite tube 21 is provided with an arc-shaped protrusion 23, and the other end of the composite tube 21 is provided with an arc-shaped groove 24. Multiple composite tubes 21 are spliced ​​together by the arc-shaped protrusion 23 and the arc-shaped groove 24. Multiple spiral protrusions 25 are provided on the inner side of the composite tube body 21; The composite tube 21 is made of rubber material; When using, such as Figure 2 As shown, the composite pipe is composed of multiple support rings I11. A composite pipe body 21 is positioned between two adjacent support rings I11. Adjacent composite pipe bodies 21 are spliced ​​together, i.e., the arcuate protrusion 23 of one composite pipe body 21 is inserted into the arcuate groove 24 of another arcuate protrusion 23. The composite pipe body 21 is preferably made of rubber, thus allowing it to deform to a certain extent. During installation, multiple snap-fit ​​plates 22 are pre-fixed to the composite pipe body 21. The fixing method can be adhesive. The snap-fit ​​plates 22 are made of rigid material and provide rigid support to the outer wall of the composite pipe body 21. The ends of the snap-fit ​​plates 22 are passed through the arcuate slot I, and the composite pipe body 21 is rotated so that the snap-fit ​​plates 22 are inserted into the arcuate support plate I12, forming the structure shown below. Figure 2 The composite pipe shown; When a section of the composite pipe 21 is damaged, construction workers or machinery enter the composite pipe and rotate the damaged section of the composite pipe 21. This causes the composite pipe 21 to move, preventing the snap-fit ​​plate 22 from engaging with the arc support plate I12. The snap-fit ​​plate 22 is then removed from the arc slot I. Multiple snap-fit ​​plates 22 are then removed from the upper side of the multiple arc support plates I12. Because the composite pipe 21 has a certain deformation capacity, squeezing the composite pipe 21 causes the composite pipe to deform. The tube body 21 undergoes a certain deformation, and the volume of the composite tube body 21 decreases. The damaged composite tube body 21 is removed from the inside of the composite pipe, and the new composite tube body 21 is reinstalled between the two support rings I11. Since the composite tube body 21 is made of rubber, it has a certain deformation capacity. The arc protrusion 23 and arc groove 24 on the new composite tube body 21 are respectively inserted into the arc groove 24 and arc protrusion 23 on both sides, thus completing the splicing of the composite tube body 21 and the composite tube body 21. Furthermore, at the connection point between the composite tube 21 and the composite tube 21, waterproof adhesive or other methods can be applied to seal and fix the connection point between the composite tube 21 and the composite tube 21. Furthermore, since the composite tube 21 will rotate once it rotates, the snap-fit ​​plate 22 will move between the two support rings I11. Over time, the composite tube 21 may loosen, hence the provision of multiple spiral protrusions 25, such as... Figure 2 As shown, when liquid flows through the composite tube 21, the liquid will come into contact with multiple spiral protrusions 25, causing the multiple spiral protrusions 25 to generate a force in the tilting direction, which will cause the multiple spiral protrusions 25 to have a rotational tendency. This rotational tendency is the force that causes the snap-fit ​​plate 22 to adhere to the limiting block I13, thereby ensuring that the longer the composite tube 21 is used and the greater the flow rate, the more stable the composite tube 21 is connected between the two support rings I11. Furthermore, the interior of the composite tube 21 is hollowed out, and a repair fluid is added inside the composite tube 21. The repair fluid can be a commonly used repair fluid in the prior art that can repair rubber. When a small crack appears inside the composite tube 21, the repair fluid can repair the composite tube 21. For example, repair fluid A, such as a mixture of glue, filler and solvent: is mainly used to fill small holes or cracks in the composite tube 21 and form a sealing layer; filler: is used to increase the viscosity and adhesion of the repair fluid to ensure a more durable repair effect; solvent: is used to dilute the glue and filler, making it easier to apply to the composite tube 21; Due to the addition of the repair fluid, small cracks can be repaired inside the composite pipe 21, reducing construction work. The combination of the composite pipe 21 and the repair fluid can reduce construction difficulty, reduce construction steps, lower costs, and facilitate maintenance. like Figure 1 As shown, due to the special structure and shape of the spiral protrusion 25, a method for preparing high-performance composite pipes for trenchless repair is designed. The steps and functions of a method for preparing high-performance composite pipes for trenchless repair are described in detail below. A method for preparing high-performance composite pipes for trenchless repair, the method comprising the following steps: Step 1: Fix multiple snap-fit ​​plates 22 to the outside of the composite pipe body 21; Step 2: Pass multiple snap-fit ​​plates 22 through multiple arc slots II in sequence, connect multiple snap-fit ​​plates 22 to the upper side of multiple arc support plates II 43, and make contact with multiple limit blocks II 44 respectively. Step 3: The cutting tool 64 processes the interior of the composite tube 21 to form a spiral groove; Step 4: Multiple injection pipes 75 are injection molded to form spiral protrusions 25.

[0011] like Figures 6 to 10As shown, in order to facilitate the implementation of a method for preparing high-performance composite pipes for trenchless repair, a device for preparing high-performance composite pipes for trenchless repair is designed. The structure and function of the device for preparing high-performance composite pipes for trenchless repair are described in detail below. A device for preparing high-performance composite pipes for trenchless repair includes a device support 31, a sliding support I 32 fixedly connected to the device support 31, a lead screw I 33 rotatably connected to the sliding support I 32, the threads at both ends of the lead screw I 33 having opposite directions, a sliding support II 34 fixedly connected to the device support 31, and a lead screw II 35 rotatably connected to the sliding support II 34. A power mechanism I for rotating a drive screw I33 is fixedly connected to the sliding bracket I32. The power mechanism I is preferably a servo motor. A power mechanism II for rotating a drive screw II35 is fixedly connected to the sliding bracket II34. The power mechanism II is preferably a servo motor. Two clamping rings 41 are slidably connected to the sliding bracket I32. The two clamping rings 41 are respectively threaded to both ends of the lead screw I33. Each clamping ring 41 is rotatably connected to a support ring II42. Each support ring II42 is fixedly connected to multiple arc support plates II43. The multiple arc support plates II43 form an arc slot II. Each support ring II42 is fixedly connected to a limit stop II44. A power mechanism Ⅲ for rotating a drive support ring Ⅱ 42 is fixedly connected to the clamping ring 41. The power mechanism Ⅲ is preferably a servo motor. A machining bracket 51 is slidably connected to the sliding bracket II 34, and the machining bracket 51 is threadedly connected to the lead screw II 35. A support column 61 is fixedly connected to the processing bracket 51. A mounting base I 62 is fixedly connected to the support column 61. A telescopic mechanism I 63 is fixedly connected to the mounting base I 62. A cutting tool 64 is rotatably connected to the telescopic end of the telescopic mechanism I 63. The telescopic mechanism I 63 is fixedly connected to the telescopic end of a power mechanism IV that drives the cutting tool 64 to rotate. The power mechanism IV is preferably a servo motor. A rotating disk 71 is rotatably connected to the processing bracket 51. A telescopic mechanism II 72 is fixedly connected to the rotating disk 71. A mounting base II 73 is fixedly connected to the telescopic end of the telescopic mechanism II 72. The rotating disk 71 is rotatably connected to the support column 61. Multiple telescopic mechanisms III 74 are fixedly connected to the mounting base II 73. An injection pipe 75 is fixedly connected to the telescopic end of each telescopic mechanism III 74. A power mechanism V for driving the rotating disk 71 to rotate is fixedly connected to the processing bracket 51. The power mechanism V is preferably a servo motor. When using, such as Figure 6As shown, the composite tube 21 to be processed is placed between two support rings II 42. Here, multiple snap-fit ​​plates 22 are pre-fixed to the composite tube 21. The snap-fit ​​plates 22 are inserted into the arc support plate II 43 through the arc slot II. The snap-fit ​​plates 22 contact the limiting block II 44, thereby completing the clamping of the composite tube 21. Furthermore, the power mechanism I is started, and the output shaft of the power mechanism I begins to rotate. The output shaft of the power mechanism I drives the lead screw I 33 to rotate. When the lead screw I 33 rotates, it drives the two clamping rings 41 to move through the thread. The two clamping rings 41 drive the two support rings II 42 to move, thereby adjusting the relative distance between the two support rings II 42. It should be noted that the structure of support ring II 42 is the same as that of support ring I 11. The only difference is that the position of the limiting block II 44 fixedly connected to the arc support plate II 43 on support ring II 42 is opposite to the position of the limiting block I 13 fixedly connected to the arc support plate I 12 on support ring I 11. Therefore, when support ring II 42 rotates and drives composite tube 21 to rotate, the rotation direction of composite tube 21 corresponds to the rotation direction of spiral protrusion 25, ensuring that when spiral protrusion 25 is subjected to flow impact in one direction, such as... Figure 2 As shown, the liquid flows from right to left, and the spiral protrusion 25 can generate a force that causes the composite tube 21 to rotate and lock. After the composite tube 21 is clamped, power mechanism II and power mechanism III are started. The output shaft of power mechanism II drives the lead screw II 35 to rotate. When the lead screw II 35 rotates, it drives the processing bracket 51 to move through the thread. The processing bracket 51 drives the cutting tool 64 to move, so that the cutting tool 64 enters the composite tube 21. The output shaft of power mechanism III drives the support ring II 42 to rotate. The support ring II 42 drives the composite tube 21 to rotate. Telescopic mechanism I 63 and power mechanism IV are started. Telescopic mechanism I 63, telescopic mechanism II 72 and telescopic mechanism III 74 can be hydraulic cylinders or electric push rods. The output shaft of power mechanism IV drives the cutting tool 64 to rotate. The telescopic end of telescopic mechanism I 63 drives the cutting tool 64 to move. Adjust the position of the extended cutting tool 64. The cutting tool 64 cuts the inside of the composite tube 21 to make a spiral groove. At the same time, the telescopic mechanism Ⅲ74 is activated. The telescopic end of the telescopic mechanism Ⅲ74 drives the injection pipe 75 to move. The movement of the injection pipe 75 injects into the spiral groove to form the spiral protrusion 25. Furthermore, the telescopic mechanism II 72 is activated. The telescopic end of the telescopic mechanism II 72 drives the mounting base II 73 to move, thereby adjusting the position of the mounting base II 73 and the position of multiple injection pipes 75. The power mechanism V is activated. The output shaft of the power mechanism V drives the rotating disk 71 to rotate. The rotating disk 71 drives the injection pipes 75 to move, adjusting the position and angle of the injection pipes 75, thereby ensuring that the injection pipes 75 can coincide with the movement trajectory of the spiral groove, and ensuring that the injection pipes 75 can perform injection molding on the spiral groove.

Claims

1. A high-performance composite pipe for trenchless repair, comprising multiple support rings I (11), characterized in that: Each support ring I (11) is fixedly connected to multiple arc support plates I (12), and the multiple arc support plates I (12) form an arc slot I. Each arc support plate I (12) is fixedly connected to a limit stop I (13) on its side. A composite tube (21) is set between two support rings I (11). Multiple snap-fit ​​plates (22) are fixedly connected to the composite tube (21). Each snap-fit ​​plate (22) can pass through the arc slot I and be inserted into the arc support plate I (12). The snap-fit ​​plate (22) can contact the limit stop I (13). Waterproof glue is applied to the connection position of the composite tube (21) and the composite tube (22) to seal and fix the connection position of the composite tube (21). One end of the composite tube (21) is provided with an arc protrusion (23), and the other end of the composite tube (21) is provided with an arc groove (24). Multiple composite tubes (21) are spliced ​​together by the arc protrusion (23) and the arc groove (24). The inner side of the composite tube (21) is provided with a plurality of spiral protrusions (25). The composite tube (21) is made of rubber.

2. The method for preparing a high-performance composite pipe for trenchless repair according to claim 1, characterized in that: The method uses a high-performance composite pipe preparation device for trenchless repair. The device includes a device support (31), a sliding support I (32) fixedly connected to the device support (31), a screw I (33) rotatably connected to the sliding support I (32), the threads at both ends of the screw I (33) are opposite, a sliding support II (34) fixedly connected to the device support (31), and a screw II (35) rotatably connected to the sliding support II (34). The sliding bracket I (32) is slidably connected to two clamping rings (41). The two clamping rings (41) are respectively connected to the two ends of the lead screw I (33) by threads. Each clamping ring (41) is rotatably connected to a support ring II (42). Each support ring II (42) is fixedly connected to multiple arc support plates II (43). The multiple arc support plates II (43) form an arc slot II. Each arc support plate II (43) is fixedly connected to a limit stop II (44). The method includes the following steps: Step 1: Fix multiple snap-fit ​​plates (22) to the outside of the composite pipe body (21); Step 2: Pass multiple snap-fit ​​plates (22) through multiple arc slots II in sequence, connect multiple snap-fit ​​plates (22) to the upper side of multiple arc support plates II (43), and make contact with multiple limit blocks II (44) respectively; Step 3: The cutting tool (64) processes the interior of the composite tube (21) to form a spiral groove; Step 4: Multiple injection pipes (75) are used to injection mold the spiral groove to form a spiral protrusion (25).

3. The preparation method according to claim 2, characterized in that: The sliding bracket II (34) is slidably connected to a processing bracket (51), which is threadedly connected to the lead screw II (35).

4. The preparation method according to claim 3, characterized in that: A support column (61) is fixedly connected to the processing bracket (51), a mounting base I (62) is fixedly connected to the support column (61), a telescopic mechanism I (63) is fixedly connected to the mounting base I (62), and a cutting tool (64) is rotatably connected to the telescopic end of the telescopic mechanism I (63).

5. The preparation method according to claim 4, characterized in that: The processing bracket (51) is rotatably connected to a rotating disk (71), and a telescopic mechanism II (72) is fixedly connected to the rotating disk (71). A mounting seat II (73) is fixedly connected to the telescopic end of the telescopic mechanism II (72). The rotating disk (71) is rotatably connected to a support column (61). Multiple telescopic mechanisms III (74) are fixedly connected to the mounting seat II (73). An injection pipe (75) is fixedly connected to the telescopic end of each telescopic mechanism III (74).

Images