A trenchless pipeline repair device
By designing a non-excavation pipeline repair device and using multiple blades to cut old pipes in annular shape, the problem of poor cracking pipes in the prior art is solved, and more efficient replacement of old pipes is achieved.
Patent Information
- Application Number
- CN202421459611.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In the prior art, the short pipe lining process has a small number of drill bit blades, making it difficult to effectively cut old pipes, resulting in poor cracking effect.
A non-excavation pipeline repair device is designed, including I-steel, jack, stressed steel plate, large drill bit and hoist installed at the bottom of the starting well. The outer side wall of the large drill bit is arranged in sequence along its circumference. The large drill bit is driven forward by a hoist, and multiple blades are ring-shaped to cut the old pipe.
Through the annular cutting of multiple blades, the cracking effect on the old pipe is significantly improved, making the old pipe more easily replaced and reducing excavation on the ground.
Smart Images
Figure CN222746889U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of trenchless equipment, and in particular to a trenchless pipeline repair device. Background Art
[0002] At present, after years of operation, rainwater and sewage pipes have problems such as local collapse and severe deformation, and can no longer meet drainage needs. In order to reduce ground excavation, in recent years, trenchless repair methods have been adopted for pipeline renewal and replacement.
[0003] Short pipe lining is one of the most common processes. The drill is pushed forward in the pipeline, and the blade on the drill is used to cut the original worn-out pipeline to achieve the purpose of cracking the pipe.
[0004] However, the conventional drill bit in the short pipe lining process in the related art has a small number of blades and can only cut and crack the top of the pipe, and the cracking effect is not good. Utility Model Content
[0005] The present application provides a trenchless pipeline repair device, which can improve the cracking effect on old pipelines and adopts the following technical solutions:
[0006] A trenchless pipeline repair device comprises an I-beam installed at the bottom of a starting well, a jack installed on one side of the I-beam, a stress-bearing steel plate arranged on the side of the jack away from the I-beam, a large drill bit placed in the old pipeline, and a winch arranged in a receiving well; the stress-bearing steel plate is used to push the new pipeline forward; the winch is used to drive the large drill bit to move; the outer side wall of the large drill bit is sequentially provided with no less than six blades along its circumference.
[0007] By adopting the above solution, when the old pipe needs to be replaced, the winch is started first, and the winch generates a pulling force to make the large drill head move forward and expand forward; then the multiple blades of the large drill head cut the old pipe in a circular manner, and the jack pushes the new pipe in time to replace the old pipe, so that the old pipe can be replaced. Furthermore, when replacing the old pipe, the multiple blades can improve the cracking effect of the old pipe.
[0008] Preferably, the end of the large drill bit away from the I-beam is rotatably connected to a small drill bit, and a driving assembly for driving the small drill bit to rotate is installed on one side of the I-beam.
[0009] When cutting an old pipe, if a pipe collapses, first drive the small drill bit to rotate through the drive assembly. The rotation of the small drill bit can rotate and loosen the soil, which can reduce the resistance of the large drill bit to move forward. In summary, by adopting the above solution, it is easy to reduce the resistance of the large drill bit to move forward.
[0010] Preferably, an annular plate is fixedly connected to one end of the small drill bit close to the large drill bit, an annular groove is provided on one side of the large drill bit close to the winch, and the annular plate is rotatably connected to the annular groove.
[0011] By adopting the above solution, the annular plate and the annular groove are provided, which facilitates the connection between the small drill bit and the large drill bit.
[0012] Preferably, the driving assembly includes a driving motor installed on one side of the I-beam and a hollow rod fixedly connected to the output shaft of the driving motor; a key block is fixedly connected to the outer wall of the hollow rod, a first through hole passing through the small drill bit is provided at one end of the small drill bit, a key slot is provided on the inner circumferential surface of the first through hole, and the small drill bit is slidably connected to the key block through the key slot.
[0013] By adopting the above scheme, when it is necessary to drive the small drill bit to rotate, the driving motor is started first. At this time, the output shaft of the driving motor drives the hollow rod to rotate, and the rotation of the hollow rod drives the key block to rotate. The rotation of the key block can drive the small drill bit to rotate; the set driving component is convenient for driving the small drill bit to rotate.
[0014] Preferably, a second through hole penetrating the large drill bit is formed at one end of the large drill bit, and the large drill bit is slidably connected to the hollow rod via the second through hole.
[0015] By adopting the above solution, the second through hole is provided, which makes it easy for the large drill bit to be slidably connected to the hollow rod, thereby facilitating the guidance of the large drill bit.
[0016] Preferably, the winch includes a steel cable, and the side wall of the hollow rod is provided with two strip holes, and push plates are slidably connected in the two strip holes, and the push plates abut against the end of the large drill bit away from the small drill bit; the end of the steel cable away from the receiving well is rotatably connected to one side of the push plate.
[0017] By adopting the above scheme, the push plate is set up, which is convenient for driving the large drill bit to move under the action of the steel cable; in addition, the steel cable is rotatably connected to the push plate, and when the hollow rod rotates under the action of the drive motor, the steel cable will not rotate with the push plate, thereby reducing the possibility of twisting of the steel cable.
[0018] Preferably, a plurality of lifting holes are provided on the blade.
[0019] By adopting the above solution, the provided hoisting hole makes it easy to hoist the large drill bit.
[0020] In summary, this application has the following beneficial effects:
[0021] 1. When the old pipe needs to be replaced, start the winch first. At this time, the winch generates a pulling force to make the large drill head move forward and expand forward; then the multiple blades of the large drill head cut the old pipe in a circular manner. In addition, the jack pushes the new pipe in time to replace the old pipe, so that the old pipe can be replaced. Furthermore, when replacing the old pipe, the multiple blades can improve the cracking effect of the old pipe;
[0022] 2. If a pipeline collapse is encountered, first drive the small drill bit to rotate through the driving assembly. The rotation of the small drill bit can rotate and loosen the soil, which can reduce the resistance of the large drill bit to move forward. In summary, by adopting the above solution, it is easy to reduce the resistance of the large drill bit to move forward;
[0023] 3. When the small drill bit needs to be driven to rotate, start the driving motor first. At this time, the output shaft of the driving motor drives the hollow rod to rotate, and the rotation of the hollow rod drives the key block to rotate. The rotation of the key block can drive the small drill bit to rotate; the set driving component is convenient for driving the small drill bit to rotate. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;
[0025] Figure 2 This is a cross-sectional view highlighting a large drill bit and a small drill bit in an embodiment of the present application;
[0026] Figure 3 This is a structural schematic diagram highlighting the key block and key slot in the embodiment of the present application.
[0027] Explanation of the accompanying reference numerals: 1. Starting well; 11. I-beam; 12. Jack; 13. Load-bearing steel plate; 2. Old pipeline; 3. Large drill bit; 31. Blade; 311. Lifting hole; 32. Annular groove; 33. Second through hole; 4. Receiving well; 5. Winch; 51. Steel rope; 6. New pipeline; 7. Small drill bit; 71. Annular plate; 72. First through hole; 73. Keyway; 8. Drive assembly; 81. Drive motor; 82. Hollow rod; 821. Key block; 822. Strip hole; 9. Push plate. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-3 This application is described in further detail.
[0029] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0030] The present application discloses a trenchless pipeline repair device, comprising an I-beam 11 installed at the bottom of a starting well 1, a jack 12 installed on one side of the I-beam 11, a stress-bearing steel plate 13 arranged on the side of the jack 12 away from the I-beam 11, a large drill bit 3 placed in an old pipeline 2, and a winch 5 arranged in a receiving well 4; the stress-bearing steel plate 13 is used to push the new pipeline 6 forward; the winch 5 is used to drive the large drill bit 3 to move; the outer wall of the large drill bit 3 is sequentially provided with no less than six blades 31 along its circumference. When the old pipeline 2 needs to be replaced, the winch 5 is first started, and at this time the winch 5 generates a pulling force to make the large drill bit 3 move forward and expand forward; then the multiple blades 31 of the large drill bit 3 cut the old pipeline 2 in an annular manner, and in addition, the jack 12 pushes the new pipeline 6 in time to replace the old pipeline 2, so that the old pipeline 2 can be replaced. Furthermore, when replacing the old pipe 2 , the plurality of blades 31 can improve the pipe-breaking effect on the old pipe 2 .
[0031] The end of the large drill bit 3 away from the I-beam 11 is rotatably connected to the small drill bit 7, and the end of the small drill bit 7 close to the large drill bit 3 is fixedly connected to the annular plate 71. The side of the large drill bit 3 close to the winch 5 is provided with an annular groove 32, and the annular plate 71 is rotatably connected to the annular groove 32; a driving assembly 8 for driving the small drill bit 7 to rotate is installed on one side of the I-beam 11. When cutting the old pipeline 2, if the pipeline collapses, the small drill bit 7 is first driven to rotate by the driving assembly 8. The rotation of the small drill bit 7 can rotate and loosen the soil, which can reduce the resistance of the large drill bit 3 to move forward; in summary, by adopting the above scheme, it is convenient to reduce the resistance of the large drill bit 3 to move forward.
[0032] The driving assembly 8 includes a driving motor 81 horizontally mounted on one side of the I-beam 11 and a hollow rod 82 detachably connected to the output shaft of the driving motor 81 through a coupling; the hollow rod 82 is arranged along the axial direction of the old pipe 2, and a key block 821 is fixedly connected to the outer wall of the hollow rod 82, and the key block 821 is arranged along the axial direction of the hollow rod 82. A first through hole 72 penetrating the small drill bit 7 is provided at one end of the small drill bit 7, and a key groove 73 is provided on the inner circumference of the first through hole 72. The key groove 73 extends along the axial direction of the hollow rod 82, and the small drill bit 7 is slidably connected to the key block 821 through the key groove 73. When it is necessary to drive the small drill bit 7 to rotate, the driving motor 81 is started first, and at this time, the output shaft of the driving motor 81 drives the hollow rod 82 to rotate, and the rotation of the hollow rod 82 drives the key block 821 to rotate, and the rotation of the key block 821 can drive the small drill bit 7 to rotate; the driving assembly 8 is arranged to facilitate driving the small drill bit 7 to rotate.
[0033] One end of the large drill bit 3 is provided with a second through hole 33 penetrating the large drill bit 3, and the large drill bit 3 is connected to the outer wall of the hollow rod 82 by sliding along the axial direction of the hollow rod 82 through the second through hole 33. The second through hole 33 is provided to facilitate the large drill bit 3 to be slidably connected to the hollow rod 82, thereby facilitating the guidance of the large drill bit 3.
[0034] The winch 5 includes a steel cable 51, and the side wall of the hollow rod 82 is provided with two strip holes 822, which extend along the axial direction of the hollow rod 82. A push plate 9 is connected to the two strip holes 822 along the axial direction of the hollow rod 82, and the push plate 9 is abutted against the end of the large drill bit 3 away from the small drill bit 7; the end of the steel cable 51 away from the receiving well 4 is rotatably connected to one side of the push plate 9 through a bearing. The push plate 9 is provided to facilitate driving the large drill bit 3 to move under the action of the steel cable 51; in addition, the steel cable 51 is rotatably connected to the push plate 9, and when the hollow rod 82 rotates under the action of the driving motor 81, the steel cable 51 will not rotate with the push plate 9, thereby reducing the possibility of twisting of the steel cable 51.
[0035] Two hoisting holes 311 are provided on a blade 31 , and the hoisting holes 311 are provided to facilitate hoisting of the large drill bit 3 .
[0036] Working principle: when the old pipe 2 needs to be replaced, the winch 5 is started first. At this time, the winch 5 generates a pulling force to make the large drill bit 3 move forward and expand forward; then the multiple blades 31 of the large drill bit 3 cut the old pipe 2 in a circular manner. When cutting the old pipe 2, if a pipe collapse is encountered, the drive motor 81 is started first. At this time, the output shaft of the drive motor 81 drives the hollow rod 82 to rotate, and the rotation of the hollow rod 82 drives the key block 821 to rotate. The key block 821 rotates to drive the small drill bit 7 to rotate. The rotation of the small drill bit 7 can rotate and loosen the soil, which can reduce the resistance of the large drill bit 3 to move forward; in addition, the jack 12 pushes the new pipe 6 in time to replace the old pipe 2, so that the old pipe 2 can be replaced. Furthermore, when replacing the old pipe 2, the multiple blades 31 can improve the cracking effect of the old pipe.
[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A trenchless pipeline repair device, characterized in that: The invention comprises an I-beam (11) installed at the bottom of a launching well (1), a jack (12) installed on one side of the I-beam (11), a stress-bearing steel plate (13) arranged on the side of the jack (12) away from the I-beam (11), a large drill bit (3) placed in an old pipeline (2), and a winch (5) arranged in a receiving well (4); the stress-bearing steel plate (13) is used to push the new pipeline (6) forward; the winch (5) is used to drive the large drill bit (3) to move; and the outer wall of the large drill bit (3) is sequentially provided with no less than six blades (31) along its circumference.
2. A trenchless pipeline repair device according to claim 1, characterized in that: One end of the large drill bit (3) away from the I-beam (11) is rotatably connected to a small drill bit (7), and one side of the I-beam (11) is equipped with a driving assembly (8) for driving the small drill bit (7) to rotate.
3. A trenchless pipeline repair device according to claim 2, characterized in that: An annular plate (71) is fixedly connected to one end of the small drill bit (7) close to the large drill bit (3), an annular groove (32) is provided on one side of the large drill bit (3) close to the winch (5), and the annular plate (71) is rotatably connected to the annular groove (32).
4. A trenchless pipeline repair device according to claim 2, characterized in that: The driving assembly (8) comprises a driving motor (81) mounted on one side of the I-beam (11) and a hollow rod (82) fixedly connected to the output shaft of the driving motor (81); a key block (821) is fixedly connected to the outer wall of the hollow rod (82); a first through hole (72) penetrating the small drill bit (7) is provided at one end of the small drill bit (7); a key groove (73) is provided on the inner circumference of the first through hole (72); and the small drill bit (7) is slidably connected to the key block (821) via the key groove (73).
5. The trenchless pipeline repair device according to claim 4, characterized in that: A second through hole (33) penetrating the large drill bit (3) is provided at one end of the large drill bit (3), and the large drill bit (3) is slidably connected to the hollow rod (82) via the second through hole (33).
6. A trenchless pipeline repair device according to claim 5, characterized in that: The winch (5) comprises a steel cable (51), and the side wall of the hollow rod (82) is provided with two strip holes (822), and a push plate (9) is slidably connected in the two strip holes (822), and the push plate (9) abuts against one end of the large drill bit (3) away from the small drill bit (7); the end of the steel cable (51) away from the receiving well (4) is rotatably connected to one side of the push plate (9).
7. The trenchless pipeline repair device according to claim 1, characterized in that: A plurality of lifting holes (311) are formed on the blade (31).