Sandy soil non-excavation pipeline repairing device

Abstract

The utility model discloses a sandy soil non-excavation pipeline repairing device which comprises a supporting air bag, connecting end plates and a supporting assembly, the supporting air bag is cylindrical, the two ends of the supporting air bag in the length direction are each provided with one connecting end plate, and the supporting assembly is arranged on the connecting end plates; the supporting assembly comprises supporting rotating rods, supporting rolling wheels and a jacking support, the multiple supporting rotating rods are rotationally arranged on the side, away from the supporting air bag, of each connecting end plate, and one supporting rolling wheel is rotationally arranged at the end, away from the connecting end plate, of each supporting rotating rod; one jacking support is arranged on the side, away from the supporting air bag, of each connecting end plate, each jacking support comprises a center block and a plurality of jacking rods arranged on the center block, and the jacking rods correspond to the supporting rotating rods one to one and are in sliding connection with the supporting rotating rods. The pipeline maintenance device has the effect of improving the pipeline maintenance quality and efficiency.

Description

Technical Field

[0001] This application relates to the technical field of pipeline repair, and in particular to a trenchless pipeline repair device for sandy soil. Background Technology

[0002] With the development of urban construction, underground pipeline systems are becoming increasingly complex. Traditional excavation and repair methods are not only costly but also prone to damaging other infrastructure. Therefore, trenchless repair technology has developed rapidly in recent years, showing significant advantages in reducing construction interference.

[0003] Currently, common trenchless repair methods include grouting reinforcement and in-situ curing. Grouting reinforcement involves stabilizing the surrounding foundation before carrying out internal repairs. In-situ curing involves placing a flexible liner inside the old pipe and filling the gap between the flexible liner and the old pipe with a curing material, which then cures to form a new pipe.

[0004] Regarding the aforementioned technologies, the inventors believe that although the grouting reinforcement method can effectively improve local bearing capacity, it still faces problems such as long time consumption and the risk of secondary settlement. When placing flexible liner or airbags in the in-situ curing method, the airbag may not be located in the middle of the pipeline during use, which will affect the subsequent curing and reduce the efficiency and quality of pipeline maintenance. Utility Model Content

[0005] To improve the quality and efficiency of pipeline repair, this application provides a trenchless pipeline repair device for sandy soil.

[0006] The trenchless pipeline repair device for sandy soil provided in this application adopts the following technical solution:

[0007] A trenchless pipeline repair device for sandy soil includes a support airbag, a connecting end plate, and a support assembly. The support airbag is cylindrical. One connecting end plate is provided at each end of the support airbag along its length. The support assembly is disposed on the connecting end plate and includes support rods, support rollers, and a top support bracket. Several support rods are rotatably disposed on the side of each connecting end plate away from the support airbag, and the support rods on the same connecting end plate are located on the same circumference. The circumference of the support rods is coaxial with the connecting end plate. One support roller is rotatably disposed at the end of each support rod away from the connecting end plate. One top support bracket is disposed on the side of each connecting end plate away from the support airbag. The top support bracket includes a central block and several top support rods disposed on the central block. The top support rods correspond one-to-one with the support rods and are slidably connected. A driving component is provided on the connecting end plate for driving the top support bracket closer to or away from the connecting end plate.

[0008] By adopting the above technical solution, the device is placed inside the pipeline cavity. Driven by the driving component, the top support moves towards or away from the connecting end plate, thereby causing several support rods mounted on the same connecting end plate to rotate at the same angle until the support rollers abut against the inner wall of the pipeline. At this point, the support airbag is located in the center of the pipeline. Gas is injected into the support airbag, causing it to inflate until it approaches the inner wall of the pipeline. A curing agent is then injected between the inner wall of the pipeline and the support airbag. After a period of curing, pipeline repair is achieved. Through the cooperation of the support airbag, connecting end plate, and support components, the support airbag is positioned in the middle of the pipeline, improving the quality and efficiency of pipeline repair.

[0009] Optionally, the driving component includes a drive motor, a bidirectional drive screw, and guide rods. The bidirectional drive screw is arranged along the length of the supporting airbag and passes through both connecting end plates and is rotatably connected to them. Each connecting end plate has a guide rod vertically connected to it on the side away from the supporting airbag. Each guide rod has a mounting plate at the end away from the connecting end plate. The drive motor is mounted on one of the mounting plates and is drively connected to one end of the bidirectional drive screw. The other end of the bidirectional drive screw is rotatably connected to the other mounting plate. The two ends of the bidirectional drive screw have two threaded segments with opposite directions of rotation. The two threaded segments of the bidirectional drive screw correspond one-to-one with the two top support brackets and are threadedly connected. The two guide rods correspond one-to-one with the two top support brackets and are slidably connected.

[0010] By adopting the above technical solution, when it is necessary to adjust the angle of the support rod, the drive motor starts and drives the bidirectional screw to rotate. Under the driving action of the bidirectional screw, the two top support brackets move in a direction away from or close to each other. The support rod rotates synchronously under the driving action of the top support bracket. The simultaneous synchronous adjustment of the angle of several support rods is achieved through the setting of the top support bracket and the bidirectional screw.

[0011] Optionally, a detection camera is provided on the side of one of the mounting plates away from the supporting airbag, and the detection camera is electrically connected to the drive motor.

[0012] By adopting the above technical solution, the detection camera can detect the internal condition and inner diameter of the pipe, which facilitates the adjustment of the angle of the support rod.

[0013] Optionally, the support airbag is provided with a heating assembly, which includes a rotating plate and heating rods. Two rotating plates are arranged in parallel, and several heating rods are arranged between the two rotating plates. Both the rotating plates and the heating rods are located inside the support airbag.

[0014] By adopting the above technical solution, after the device is fixed, gas is injected into the support airbag, causing it to inflate and approach the inner wall of the pipe. A resin-based curing agent is then injected into the gap between the support airbag and the pipe. The heating rod is energized and heats the resin, accelerating its curing process and improving the efficiency of pipe maintenance.

[0015] Optionally, a heat-insulating mesh cylinder is provided between the two connecting end plates, and the rotating plate and the heating rod are both located inside the heat-insulating mesh cylinder.

[0016] By adopting the above technical solution, the heating component is set inside the heat insulation mesh cylinder, which reduces the possibility of the supporting airbag deforming and breaking due to heat contact with the heating rod.

[0017] Optionally, each end of the supporting airbag is provided with a connecting ring plate, and the two connecting ring plates correspond one-to-one with the two connecting end plates and are threadedly connected.

[0018] By adopting the above technical solution, the support airbag is detachably connected to the corresponding connecting end plate via connecting ring plates at both ends, which facilitates the operator to maintain the internal structure of the support airbag.

[0019] Optionally, the heating assembly further includes a rotating ring, one of which is provided on the side of each rotating plate away from the heating rod. The connecting end plate is coaxially provided with a connecting ring groove on the side of the supporting airbag. The two connecting ring grooves correspond one-to-one with the two rotating rings and are rotatably connected. The supporting airbag is provided with a driving component for driving the rotating plate to rotate.

[0020] By adopting the above technical solution, the rotating plate is rotatably connected to the connecting end plate through the rotating ring. When heating, the driving component is activated and drives the rotating plate and the heating rod to rotate in the supporting air bag, thereby achieving uniform heating of the curing material.

[0021] Optionally, the connecting end plate is provided with an air inlet pipe, an exhaust pipe, and a pressure sensor. The air inlet pipe, the exhaust pipe, and the pressure sensor are all connected to the inner cavity of the supporting airbag. An exhaust valve is provided on the exhaust pipe.

[0022] By employing the above technical solution, the pressure sensor detects the air pressure inside the support airbag. When the air pressure inside the support airbag is too high, the exhaust valve opens, and air is released through the exhaust pipe. This reduces the possibility of the support airbag rupturing under high pressure.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By cooperating with the supporting airbag, connecting end plate and supporting components, the supporting airbag is supported in the middle position inside the pipeline, which improves the quality and efficiency of pipeline maintenance.

[0025] 2. The heating element accelerates the curing process of the hardener, which helps improve the efficiency of pipeline maintenance;

[0026] 3. The inclusion of a pressure sensor and an exhaust pipe reduces the likelihood of the support airbag rupturing under high pressure. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the structure of a trenchless pipeline repair device for sandy soil, as described in the embodiments of this application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0029] Figure 3 This is a partial cross-sectional view used in the embodiments of this application to illustrate the internal structure of the supporting airbag.

[0030] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Support airbag; 2. Connecting end plate; 21. Connecting ring groove; 3. Support assembly; 31. Support rotating rod; 311. T-shaped slide groove; 32. T-shaped slider; 33. Support roller; 34. Top support bracket; 341. Center block; 342. Top support rod; 35. Guide rod; 36. Mounting plate; 37. Drive motor; 38. Drive bidirectional screw; 39. Detection camera; 4. Heating assembly; 41. Rotating plate; 42. Heating rod; 43. Rotating gear; 44. Rotating gear ring; 45. Rotating motor; 46. Rotating ring; 5. Connecting ring plate; 6. Inlet pipe; 7. Exhaust pipe; 8. Air pressure sensor; 9. Exhaust valve; 10. Heat insulation mesh cylinder. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be further described in detail below. Embodiments of this application provide a trenchless pipeline repair device for sandy soil, which improves the quality and efficiency of pipeline repair.

[0033] Reference Figure 1 and Figure 2 A trenchless pipeline repair device for sandy soil includes a support airbag 1, connecting end plates 2, a support assembly 3, and a heating assembly 4. The support airbag 1 is cylindrical, and a connecting ring plate 5 is connected to both ends of the support airbag 1. One connecting end plate 2 is provided on each side of the support airbag 1, and the two connecting end plates 2 correspond one-to-one with the two connecting ring plates 5 and are threadedly connected.

[0034] Reference Figure 3 and Figure 4 One of the connecting end plates 2 is connected to an air intake pipe 6, an exhaust pipe 7, and a pressure sensor 8. The air intake pipe 6, the exhaust pipe 7, and the pressure sensor 8 are all connected to the inner cavity of the supporting airbag 1. An exhaust valve 9 is provided on the exhaust pipe 7.

[0035] Reference Figure 2 and Figure 4 The support assembly 3 includes a support rotating rod 31, a T-shaped slider 32, a support roller 33, a top support bracket 34, a guide rod 35, a mounting plate 36, a drive motor 37, a drive bidirectional screw 38, and a detection camera 39. Several support rotating rods 31 are rotatably mounted on each connecting end plate 2, with each rod positioned on the side of the connecting end plate 2 away from the support airbag 1. The several support rotating rods 31 located on the same connecting end plate 2 are situated on the same circumference, and the circumference of the ends of the several support rotating rods 31 is coaxially arranged about the connecting end plate 2. One support roller 33 is rotatably mounted on the end of each support rotating rod 31 away from the connecting end plate 2.

[0036] Reference Figure 2 and Figure 4Each top support bracket 34 is parallel to the other on one side of the two connecting end plates 2 that are far apart from each other. The top support bracket 34 includes a central block 341 and top support rods 342. Several top support rods 342 are arranged circumferentially on the central block 341, and each top support rod 342 corresponds to a number of supporting rotating rods 31. Each supporting rotating rod 31 has a T-shaped groove 311 along its length on the side near the top support bracket 34. A T-shaped slider 32 is slidably arranged in each T-shaped groove 311, and the T-shaped slider 32 is rotatably connected to the corresponding top support rod 342.

[0037] Reference Figure 2 A bidirectional drive screw 38 is positioned along the length of the support cavity, passing through both connecting end plates 2 and rotatably connected to them. Both ends of the bidirectional drive screw 38 have threaded sections with opposite directions of rotation, each threaded section corresponding to and threadedly connected to one of the two top support brackets 34. A guide rod 35 is vertically positioned at the ends of the two connecting end plates 2 that are furthest from each other, passing through the corresponding top support bracket 34 and slidably connected to it. Each guide rod 35 has a mounting plate 36 connected to its end furthest from the connecting end plate 2. One mounting plate 36 is connected to a drive motor 37, and the output shaft of the drive motor 37 is drively connected to one end of the bidirectional drive screw 38. The other end of the bidirectional drive screw 38 is rotatably connected to the other mounting plate 36. A detection camera 39 is positioned on one of the mounting plates 36 on the side furthest from the supporting airbag 1, and is electrically connected to the drive motor 37.

[0038] Reference Figure 3 and Figure 4 The heating component 4 is disposed within the supporting airbag 1. The heating component 4 includes a rotating plate 41, a heating rod 42, a rotating gear 43, a rotating gear ring 44, a rotating motor 45, and a rotating ring 46. The rotating plate 41 is a circular plate, and two rotating plates 41 are arranged in parallel. Several heating rods 42 are connected in parallel between the two rotating plates 41. One rotating ring 46 is coaxially connected to each rotating plate 41 on the side furthest from each other. A connecting ring groove 21 is provided on the side of each of the two connecting end plates 2 that are close to each other. The two connecting ring grooves 21 correspond one-to-one with the two rotating rings 46, and the rotating rings 46 are rotatably disposed in the corresponding connecting ring grooves 21. The rotating motor 45 is disposed on one of the connecting end plates 2, and its output shaft is connected to the rotating gear 43. The rotating gear ring 44 is connected to the outer ring wall of one of the rotating plates 41, and the rotating gear ring 44 meshes with the rotating gear 43.

[0039] Reference Figure 3 and Figure 4A heat insulation mesh cylinder 10 is provided between the two connecting end plates 2. The heat insulation mesh cylinder 10 is located outside the rotating plate 41 and the heating rod 42. Several ventilation holes are provided on the heat insulation mesh cylinder 10.

[0040] Reference Figure 2 and Figure 4 During pipeline repair, the device is placed inside the pipeline to be repaired. The inspection camera 39 observes the inner diameter of the pipeline and drives the drive motor 37. The drive motor 37 drives the bidirectional screw 38 to rotate, simultaneously driving the two top support brackets 34 to move closer to or further apart from each other. The top support rod 342 drives the T-shaped slider 32 to slide in the T-shaped groove 311 of the supporting rotating rod 31. Several supporting rotating rods 31 rotate relative to the connecting end plate 2 under the drive, allowing the device to be used with pipelines of different diameters. This also ensures that the supporting airbag 1 remains in the middle of the pipeline, facilitating subsequent operations and improving the quality and efficiency of pipeline repair.

[0041] Reference Figure 3 and Figure 4 After the device is positioned and supported, gas is injected into the support airbag 1 through the air inlet pipe 6, causing it to expand to near the inner wall of the pipe. Resin or other curing materials are then injected between the support airbag 1 and the pipe. The heating rod 42 is activated, heating the resin from the inside to aid in rapid curing. The rotating motor 45 is activated, driving the rotating gear 43 to rotate. The rotating gear ring 44 and the rotating plate 41 rotate under the drive of the rotating gear 43, causing the heating rod 42 connected to the rotating plate 41 to rotate within it, uniformly heating the resin. The heat insulation mesh cylinder 10 protects the support airbag 1, reducing the possibility of damage from contact with the heating rod 42.

[0042] Reference Figure 3 and Figure 4 During the repair process, the air pressure sensor 8 detects the air pressure in the support airbag 1. When the air pressure in the support airbag 1 is too high, the exhaust valve 9 opens and exhausts the air from the support airbag 1, reducing the possibility of the support airbag 1 rupturing under high pressure.

[0043] The implementation principle of the trenchless pipeline repair device for sandy soil in this embodiment is as follows: During pipeline repair, the device is placed in the pipeline to be repaired. The detection camera 39 observes the inner diameter of the pipeline and drives the drive motor 37 to start. Several support rotating rods 31 rotate relative to the connecting end plate 2 under the drive, so that the device can be used for pipelines of different diameters, and at the same time, the support airbag 1 can always be located in the middle position of the pipeline.

[0044] After the device is positioned and supported, gas is injected into the support airbag 1 through the air inlet pipe 6, causing it to expand to near the inner wall of the pipe. Resin or other curing material is then injected between the support airbag 1 and the pipe. The heating rod 42 is activated to heat the resin from the inside, aiding in its rapid curing.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sand-based trenchless pipe rehabilitation device, characterized by: The utility model provides a kind of supporting air bag (1), connecting end plate (2) and support assembly (3) are included, the supporting air bag (1) is cylindrical, one is provided in the length direction of the supporting air bag (1) both ends of the connecting end plate (2), the support assembly (3) is arranged on the connecting end plate (2), the support assembly (3) includes support rotating rod (31), support roller (33) and top support bracket (34), the support rotating rod (31) is rotatably provided with several in the side of each the connecting end plate (2) away from the supporting air bag (1), several the support rotating rod (31) on the same the connecting end plate (2) are located on the same circumference, the circumference of the support rotating rod (31) is coaxially arranged with the connecting end plate (2), the support roller (33) is rotatably provided with one in the side of each the support rotating rod (31) away from the connecting end plate (2), the top support bracket (34) is provided with one in the side of each the connecting end plate (2) away from the supporting air bag (1), the top support bracket (34) includes center block (341) and the several top support rods (342) arranged on the center block (341), several the top support rod (342) and several the support rotating rod (31) one-to-one correspondence and slidingly connected, the connecting end plate (2) is provided with driving member for driving the top support bracket (34) to be close to or away from the connecting end plate (2).

2. A sand-based trenchless pipe rehabilitation device according to claim 1, characterized in that: The driving member includes driving motor (37), driving bidirectional screw (38) and guide rod (35), the driving bidirectional screw (38) is arranged along the length direction of the supporting air bag (1), the driving bidirectional screw (38) is simultaneously penetrated two the connecting end plate (2) and is rotatably connected with it, the guide rod (35) is vertically connected with one in the side of each the connecting end plate (2) away from the supporting air bag (1), the guide rod (35) is provided with one mounting plate (36) in the side of away from the connecting end plate (2), the driving motor (37) is arranged on one the mounting plate (36), the driving motor (37) is drivingly connected with one end of the driving bidirectional screw (38), the other end of the driving bidirectional screw (38) is rotatably connected with another the mounting plate (36), the two thread segments of opposite rotation are provided in the two ends of the driving bidirectional screw (38), the two thread segments of the driving bidirectional screw (38) and two the top support bracket (34) one-to-one correspondence and are threadedly connected, two the guide rod (35) and two the top support bracket (34) one-to-one correspondence and slidingly connected.

3. A sand-based soil trenchless pipe rehabilitation device according to claim 2, characterized in that: The side of one the mounting plate (36) away from the supporting air bag (1) is provided with detection camera (39), and the detection camera (39) is electrically connected with the driving motor (37).

4. A sand-based soil trenchless pipe rehabilitation device according to claim 1, characterized in that: The support air bag (1) is provided with a heating assembly (4), the heating assembly (4) comprises rotating plates (41) and heating rods (42), two rotating plates (41) are arranged in parallel, and a plurality of heating rods (42) are arranged between the two rotating plates (41); the rotating plates (41) and the heating rods (42) are arranged in the support air bag (1).

5. A sand-based soil trenchless pipe rehabilitation device according to claim 4, characterized in that: The two connecting end plates (2) are provided with a heat insulation net cylinder (10), and the rotating plates (41) and the heating rods (42) are arranged in the heat insulation net cylinder (10).

6. A sand-based soil trenchless pipe rehabilitation device according to claim 4, characterized in that: Both ends of the support air bag (1) are provided with a connecting ring plate (5), and the two connecting ring plates (5) are in one-to-one correspondence with the two connecting end plates (2) and are screw-connected.

7. A sand-based soil trenchless pipe rehabilitation device according to claim 4, characterized in that: The heating assembly (4) further comprises rotating rings (46), one rotating ring (46) is arranged on the side, away from the heating rod (42), of each rotating plate (41); the connecting end plate (2) on one side of the support air bag (1) is coaxially provided with a connecting ring groove (21), and the two connecting ring grooves (21) are in one-to-one correspondence with the two rotating rings (46) and are rotationally connected; the support air bag (1) is provided with a driving member for driving the rotating plate (41) to rotate.

8. A sand-based soil trenchless pipe rehabilitation device according to claim 1, characterized in that: The connecting end plate (2) is provided with an air inlet pipe (6), an air outlet pipe (7) and an air pressure sensor (8), the air inlet pipe (6), the air outlet pipe (7) and the air pressure sensor (8) are in communication with the inner cavity of the support air bag (1), and the air outlet pipe (7) is provided with an air outlet valve (9).

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