Adjustable guiding device for trenchless repair of pipeline

Abstract

The invention discloses an adjustable guide device for trenchless repair of a pipeline. The adjustable guide device comprises a guide mechanism I arranged at a port of the pipeline to be repaired; a guide mechanism II is arranged on the inlet side of the guide mechanism I; the second guide mechanism is obliquely arranged towards the inlet end of the first guide mechanism, the first guide mechanism comprises a positioning ring plate, the positioning ring plate is installed in a port of a to-be-repaired pipeline, a plurality of movable columns are arranged on the side wall of the positioning ring plate in a sliding mode in the radial direction, and a plurality of guide rollers are distributed on the inner wall of the positioning ring plate at equal intervals; the second guide mechanism comprises a mounting plate, a supporting top plate is fixed to the mounting plate, a guide plate is rotationally arranged at one end of the supporting top plate, and a limiting roller is mounted on the guide plate; and the second guide mechanism is obliquely arranged and used for directly feeding the lining pipe from the outside, the lining pipe is fed into the positioning ring plate after being discharged by the pipe discharging device and being transitionally guided by the guide plate, a plurality of guide rollers are distributed on the inner wall of the positioning ring plate at equal intervals, and when the lining pipe enters the pipeline, the precise guide and limiting effects are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of trenchless pipeline repair, and in particular relates to an adjustable guide device for trenchless pipeline repair. Background Art

[0002] Trenchless pipeline repair is a modern engineering technology that uses advanced materials and technologies to efficiently, economically and safely restore or improve the structural integrity and usability of underground pipelines from the inside of the pipeline. It is particularly suitable for pipeline repair needs in modern, high-density urban environments.

[0003] Trenchless pipeline repair involves inserting new pipes into the pipeline through existing entrances such as inspection wells and working pits, and using various technical means to form a new, structural lining layer or perform local repairs inside the pipeline. The newly formed lining or repair layer assumes structural functions, isolates defects, and restores or even improves the pipeline's load-bearing capacity and performance.

[0004] However, the above technical solution has the following deficiencies when actually used: 1. Considering that the external ground or the pipe-laying device is higher than the pipeline to be repaired, it is difficult to transport the liner pipe directly from the external ground or the pipe-laying device, which is inconvenient; 2. When the liner pipe is transported into the pipeline to be repaired, there is a lack of effective guiding and positioning, resulting in low precision and low efficiency; 3. There is a lack of adjustable guiding devices suitable for a variety of liner pipes. Summary of the Invention

[0005] The present invention provides an adjustable guide device for trenchless repair of pipelines. The guide mechanism is arranged at an angle and is used for directly delivering the liner pipe from the outside. After the liner pipe is released by the pipe releasing device, it is delivered into the positioning ring plate after transition guidance by the guide plate. A number of guide rollers are arranged at equal intervals on the inner wall of the positioning ring plate, which play a role of precise guiding and limiting when the liner pipe enters the pipeline, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an adjustable guide device for trenchless pipeline repair, comprising a pipeline to be repaired, wherein a guide mechanism 1 is provided at the end of the pipeline to be repaired; The inlet side of the guide mechanism 1 is provided with a guide mechanism 2, which is used to guide the liner pipe from the outside to the inlet of the guide mechanism 1; The second guide mechanism is arranged tilted toward the inlet end of the first guide mechanism.

[0007] Preferably, the guide mechanism includes a positioning ring plate, which is installed in the port of the pipe to be repaired. A number of movable columns are provided on the side wall of the positioning ring plate for radial sliding. A positioning block is fixed at one end of the movable column. The positioning block is tightly pressed against the inner wall of the pipe to be repaired. A number of guide rollers are arranged at equal intervals on the inner wall of the positioning ring plate, and the roller surface is in contact with the inner liner pipe.

[0008] Preferably, the second guide mechanism includes a mounting plate, which is fixedly mounted on the ground or the pipe placing device, and a mounting hole is provided on the mounting plate. A supporting top plate is fixed on the mounting plate, and a guide plate is rotatably provided at one end of the supporting top plate. A limiting roller is installed on the guide plate for preliminarily limiting the inner lining pipe.

[0009] Preferably, a threaded rod is rotatably provided on the outer surface of the positioning ring plate, a fixed end block is fixed at one end of the threaded rod, an annular end plate is threadedly connected to the threaded rod, a limiting rod penetrating the annular end plate is fixed at a position symmetrical to the threaded rod on the positioning ring plate, a connecting rod is hingedly connected to the positioning block and the annular end plate, the connecting rod is arranged at an angle, and when the annular end plate moves axially, the positioning block is pushed to move radially through the connecting rod.

[0010] Preferably, a plurality of fixing columns are fixed on the inner wall of the positioning ring plate, a U-shaped mounting frame is fixed on the fixing column, and the guide roller is rotatably arranged on the mounting frame.

[0011] Preferably, a bottom block 1 is fixed to the bottom of the guide plate, a bottom block 2 is fixed to the bottom of the supporting top plate, and cylinders are hinged on the bottom block 1 and the bottom block 2.

[0012] Preferably, two groups of embedding grooves are embedded at the bottom of the guide plate, and a bidirectional screw is rotatably provided in the embedding groove. Both ends of the bidirectional screw extend outside the guide plate and are fixed with a rotating block. Both ends of the bidirectional screw are threadedly connected to a mounting seat, and a limiting roller is rotatably provided on the mounting seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The second guide mechanism is tilted and is used to feed the liner pipe directly from the outside. After the liner pipe is released by the pipe releasing device, it is guided by the guide plate and then fed into the positioning ring plate. Several guide rollers are arranged at equal intervals on the inner wall of the positioning ring plate, which play a role in precise guidance and limiting when the liner pipe enters the pipeline.

[0014] 2. When the annular end plate moves axially, the positioning block is pushed to move radially through the connecting rod, which is convenient for the installation and removal of the positioning block between the positioning ring plate and the pipe to be repaired.

[0015] 3. The inclination angle of the guide plate can be adjusted by the extension of the cylinder for adaptive transportation of the liner pipe.

[0016] 4. By rotating the bidirectional screw, the mounting seats on both sides can be driven to move closer or farther away synchronously along the embedded groove, which can meet the needs of different spacing limit rollers of the inner liner pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A; Figure 3 This is a structural diagram of a guide mechanism according to an embodiment of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point B; Figure 6 A schematic diagram of a partial top view of the guide mechanism 1 and the guide mechanism 2 according to an embodiment of the present invention; Figure 7 This is a schematic structural diagram of the guide roller, fixed column, and mounting frame according to an embodiment of the present invention.

[0018] In the figure: 1. Pipeline to be repaired; 2. Guide mechanism 1; 3. Guide mechanism 2; 4. Positioning ring plate; 5. Movable column; 6. Positioning block; 7. Guide roller; 8. Mounting plate; 9. Mounting hole; 10. Support top plate; 11. Guide plate; 12. Limiting roller; 13. Threaded rod; 14. End block; 15. Annular end plate; 16. Limiting rod; 17. Connecting rod; 18. Fixed column; 19. Mounting frame; 20. Bottom block 1; 21. Bottom block 2; 22. Cylinder; 23. Groove; 24. Bidirectional screw; 25. Rotating block; 26. Mounting seat. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1 The present invention provides an adjustable guide device for trenchless pipe repair, comprising a pipe to be repaired 1, wherein a guide mechanism 2 is provided at the end of the pipe to be repaired 1 for accurately guiding the liner pipe when entering the pipe to be repaired 1; The inlet side of the guide mechanism 1 2 is provided with a guide mechanism 2 3, which is used to guide the liner pipe from the outside to the inlet of the guide mechanism 1 2 and stably feed it into the guide mechanism 1 2; Considering that the external ground or the pipe placing device is higher than the pipeline 1 to be repaired, the guide mechanism 2 3 is inclined from the external ground or the pipe placing device to the inlet end of the guide mechanism 1 2, so that the liner pipe can be directly delivered from the outside.

[0021] See also Figure 2-Figure 3As a further embodiment, the guide mechanism 2 includes a positioning ring plate 4, which is installed in the port of the pipe to be repaired 1. The liner pipe is positioned by the positioning ring plate 4 and is guided into the port of the pipe to be repaired 1. A plurality of movable columns 5 are provided on the side wall of the positioning ring plate 4 for radial sliding. A positioning block 6 is fixed at one end of the movable column 5. The positioning block 6 is tightly pressed against the inner wall of the pipe to be repaired 1. The positioning block 6 is clamped between the positioning ring plate 4 and the inner wall of the pipe to be repaired 1 to provide precise positioning for the positioning ring plate 4. A plurality of guide rollers 7 are arranged at equal intervals on the inner wall of the positioning ring plate 4. The roller surface contacts the liner pipe, which is used to guide and limit the liner pipe when it enters the pipeline.

[0022] See also Figure 4-Figure 5 As a further embodiment, the guide mechanism 2 3 includes a mounting plate 8, which is fixedly mounted on the ground pipe-laying device. The mounting plate 8 is provided with a mounting hole 9 for cooperating with an external fastener to be installed on the ground pipe-laying device. A support top plate 10 is fixed on the mounting plate 8, and a guide plate 11 is rotatably provided at one end of the support top plate 10. A limiting roller 12 is installed on the guide plate 11 for preliminarily limiting the inner liner pipe. The inner liner pipe itself has flexibility and is a well-known technology and is not described in detail. After the inner liner pipe is released through the pipe-laying device, the inner liner pipe is sent into the positioning ring plate 4 through the guide plate 11, and then enters the guide mechanism 1 2 after being transition-guided at the lower part by the guide mechanism 2 3.

[0023] See also Figure 2-Figure 3 A threaded rod 13 is rotatably provided on the outer surface of the positioning ring plate 4, and a fixed end block 14 is fixed at one end of the threaded rod 13. An annular end plate 15 is threadedly connected to the threaded rod 13. A limiting rod 16 that penetrates the annular end plate 15 is fixed on the positioning ring plate 4 at a position symmetrical to the threaded rod 13. A connecting rod 17 is hinged on the positioning block 6 and the annular end plate 15. The connecting rod 17 is arranged obliquely. When the annular end plate 15 moves axially, the positioning block 6 is pushed radially by the connecting rod 17, which is used for assembling and disassembling the positioning block 6 between the positioning ring plate 4 and the pipe 1 to be repaired.

[0024] See also Figure 7 A plurality of fixing columns 18 are fixed on the inner wall of the positioning ring plate 4, on which a U-shaped mounting frame 19 is fixed, and the guide roller 7 is rotatably arranged on the mounting frame 19; the guide roller 7 is used to be installed on the inner wall of the positioning ring plate 4 through the fixing columns 18 and the mounting frame 19, and can be rotatably positioned and guided.

[0025] See also Figure 5 A bottom block 20 is fixed at the bottom of the guide plate 11, and a bottom block 21 is fixed at the bottom of the supporting top plate 10. A cylinder 22 is hinged on the bottom block 20 and the bottom block 21; the inclination angle of the guide plate 11 can be adjusted by telescoping the cylinder 22 for adaptive transportation of the liner pipe.

[0026] See also Figure 6 Two groups of embedding grooves 23 are embedded at the bottom of the guide plate 11, and a bidirectional screw 24 is rotatably provided in the embedding groove 23. Both ends of the bidirectional screw 24 extend to the outside of the guide plate 11 and are fixed with a rotating block 25. The two ends of the bidirectional screw 24 are threadedly connected to a mounting seat 26, and a limiting roller 12 is rotatably provided on the mounting seat 26; then, by rotating the bidirectional screw 24, the mounting seats 26 on both sides can be driven to synchronously approach or move away from the embedding groove 23, which is used to meet the needs of limiting rollers 12 with different spacings in the liner pipe.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable guide device for trenchless pipe repair, comprising a pipe to be repaired (1), characterized in that: A guide mechanism (2) is provided at the port of the pipeline (1) to be repaired; The inlet side of the guide mechanism 1 (2) is provided with a guide mechanism 2 (3), and the guide mechanism 2 (3) is used to guide the inner liner pipe from the outside to the inlet of the guide mechanism 1 (2); The second guide mechanism (3) is tilted toward the inlet end of the first guide mechanism (2).

2. The adjustable guide device for trenchless pipeline repair according to claim 1, characterized in that: The guide mechanism (2) includes a positioning ring plate (4), which is installed in the port of the pipeline (1) to be repaired. A plurality of movable columns (5) are provided on the side wall of the positioning ring plate (4) for radial sliding. A positioning block (6) is fixed at one end of the movable column (5). The positioning block (6) is tightly pressed against the inner wall of the pipeline (1) to be repaired. A plurality of guide rollers (7) are arranged at equal intervals on the inner wall of the positioning ring plate (4), and the roller surfaces are in contact with the inner liner pipe.

3. The adjustable guide device for trenchless pipeline repair according to claim 2, characterized in that: The second guide mechanism (3) includes a mounting plate (8), which is fixedly mounted on the ground or on a pipe placing device. A mounting hole (9) is provided on the mounting plate (8), and a supporting top plate (10) is fixed on the mounting plate (8). A guide plate (11) is rotatably provided at one end of the supporting top plate (10), and a limiting roller (12) is installed on the guide plate (11) for initially limiting the inner lining pipe.

4. The adjustable guide device for trenchless pipeline repair according to claim 3, characterized in that: A threaded rod (13) is rotatably provided on the outer surface of the positioning ring plate (4), a fixed end block (14) is fixed to one end of the threaded rod (13), an annular end plate (15) is threadedly connected to the threaded rod (13), a limiting rod (16) penetrating the annular end plate (15) is fixed on the positioning ring plate (4) at a position symmetrical to the threaded rod (13), and a connecting rod (17) is hinged on the positioning block (6) and the annular end plate (15), and the connecting rod (17) is arranged in an inclined manner. When the annular end plate (15) moves axially, the positioning block (6) is pushed to move radially through the connecting rod (17).

5. The adjustable guide device for trenchless pipeline repair according to claim 3, characterized in that: A plurality of fixing columns (18) are fixed on the inner wall of the positioning ring plate (4), a U-shaped mounting frame (19) is fixed on the fixing column, and the guide roller (7) is rotatably mounted on the mounting frame (19).

6. The adjustable guide device for trenchless pipeline repair according to claim 5, characterized in that: A bottom block 1 (20) is fixed to the bottom of the guide plate (11), a bottom block 2 (2) is fixed to the bottom of the supporting top plate (10), and a cylinder (22) is hinged on the bottom block 1 (20) and the bottom block 2 (21).

7. The adjustable guide device for trenchless pipeline repair according to claim 6, characterized in that: Two groups of embedding grooves (23) are embedded at the bottom of the guide plate (11), and a bidirectional screw (24) is rotatably provided in the embedding groove (23). Both ends of the bidirectional screw (24) extend outside the guide plate (11) and are fixed with a rotating block (25). Both ends of the bidirectional screw (24) are threadedly connected to a mounting seat (26), and a limiting roller (12) is rotatably provided on the mounting seat (26).

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