Pull-type trenchless pipeline repair intelligent equipment

Abstract

The invention relates to traction-type trenchless pipeline repair intelligent equipment which comprises a conical guide head and a circular repair part which are detachably connected through a first connecting part and a second connecting part. The conical surface of the guide head is provided with an annular laser emitter to detect the internal environment and damage position of the pipeline, the large end is provided with a servo motor, a transmission shaft is connected with a spiral push rod, and an inclined block at the end of the push rod is inserted into a guide hole of a sealing stop block of the repair part. The outer surface of the repairing part is provided with two groups of sealing stoppers, the side nozzle is connected with a repairing liquid high-pressure pump, the stoppers and the outer surface of the repairing part form a groove, a wound expansion ring is arranged in the groove, the volume of two ends of the expansion ring is adjusted through threaded connecting rods, and the inner wall is in contact with the inclined block. The equipment ensures that the coiled material is attached to the inner wall of the pipeline through primary repair of the repair liquid, secondary repair of the expansion ring coiled material and fine adjustment of the inclined block.

Description

Technical Field

[0001] The present invention relates to the field of pipeline repair, and in particular to a traction-type trenchless pipeline repair intelligent device. Background Art

[0002] In municipal engineering projects, some pipelines may be damaged due to impacts with foreign objects, corrosion, and other factors. This necessitates pipeline repair. Currently, there are numerous methods for pipeline repair, including excavation and replacement repair, as well as trenchless repair. However, traditional trenchless repair methods present many challenges. For example, the pipeline is not linear and may have local bends. If the damage occurs on a curved pipe, repair becomes significantly more challenging. Summary of the Invention

[0003] The present invention provides a traction-type trenchless pipeline repair intelligent device to solve the problem of repairing local pipeline damage. To achieve the above purpose, the present invention adopts the following technical solutions:

[0004] A traction-type trenchless pipeline repair intelligent device comprises a guide head with an overall conical shape and a circular repair part;

[0005] A plurality of laser emitters are uniformly arranged in an annular pattern on the conical surface of the guide head; a stepped first connecting portion is provided at the large end of the guide head, and a first servo motor is also provided around the outer contour of the large end of the guide head; a transmission shaft of the first servo motor is connected to a screw push rod, and an inclined block is provided at the end of the screw push rod;

[0006] A second connecting portion is provided at one end of the repair part, and two groups of raised sealing blocks are respectively provided on the outer surface of the repair part, and nozzles are provided on the sides of the two groups of sealing blocks facing each other; a groove of a "U"-shaped structure is formed on the sealing block and the outer surface of the repair part; the sealing block is provided with a guide hole, and the inclined block is inserted into the guide hole; the groove is also provided with a wound expansion ring, and the two ends of the expansion ring are adjusted to have an expanded volume by a threaded connecting rod; the inner wall of the expansion ring is in contact with the inclined surface of the inclined block; the first connecting portion and the second connecting portion are detachably connected; the nozzle is connected to a high-pressure pump of the pipeline repair fluid.

[0007] Furthermore, the two ends of the expansion ring are respectively provided with a first support seat and a second support seat; the connecting rod rotates relative to the swing shaft through the second bearing, and the swing shaft is hinged to the first support seat through the first bearing; a worm gear is provided on the surface of the connecting rod; the second support seat is connected to the conduction block through the third bearing, and a worm gear is provided at the center of the conduction block, and the worm gear and the worm gear are transmission-connected; a mounting hole is provided in the conduction block, and the connecting rod is inserted into the mounting hole.

[0008] Furthermore, a pipe repair coil is wound around the expansion ring, and furthermore, the length of the coil does not exceed the inner diameter of the pipe.

[0009] Furthermore, the small-diameter end of the guide head is connected to a pull rope, and the pull rope is connected to the traction equipment through a fixed guide wheel; the guide wheel is provided on a traction seat, and the bottom of the traction seat is detachably connected to the ground.

[0010] Furthermore, a spiral lifting mechanism is provided on the traction seat, and a universal bearing is provided at the end of the spiral lifting mechanism; the universal bearing is connected to the guide wheel.

[0011] Compared with existing technologies, the present invention offers the following advantages: It utilizes a laser transmitter to detect the internal environment of the pipe and locate the damage. A repair fluid is then used for initial repair, followed by a secondary repair using a coiled material. Finally, the coiled material is fine-tuned using a bevel block to maintain a consistent curved surface with the pipe's inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the use of the present invention;

[0013] Figure 2 It is a structural diagram of the guide head;

[0014] Figure 3 This is a structural diagram of the repair part;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the repair part;

[0016] Figure 5 It is a structural diagram of the expansion ring connection.

[0017] 1 Guide head, 11 First connection part, 2 Laser emitter, 31 First servo motor, 32 Transmission shaft, 33 Screw push rod, 34 Guide hole, 35 Oblique block, 4 Repair part, 41 Second connection part, 42 Sealing block, 43 Repair body, 44 Nozzle, 5 Pull rope, 6 Traction seat, 61 Guide wheel, 7 Traction device, 8 Expansion ring, 81 First support seat, 811 First bearing, 82 Connecting rod, 821 Second bearing, 822 Swing shaft, 83 Second support seat, 831 Third bearing, 832 Conducting block, 833 Worm gear, 9 Broken wall DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0019] like Figures 1 to 5 As shown, a traction-type trenchless pipeline repair intelligent device includes a guide head 1 that is generally conical in shape and a circular repair part 4; the guide head 1 and the repair part 4 are detachably connected. Specifically, the first connecting part 11 and the second connecting part 41 are detachably connected, and the detachable method can be a threaded connection or a pin hole connection.

[0020] The conical surface of the guide head 1 is uniformly arranged in a circular pattern with several laser emitters 2. These emitters determine the direction and angle of the local pipeline inclination. Specifically, the entire pipeline can be considered a straight line, with the local pipeline considered to have a certain curvature. The laser emitters 2 scan the changes in the internal pipeline contour to determine the location of the damage. Simultaneously, based on the spatial contour modeling of the damage area and the changes in laser ranging, the repair unit 4 is positioned at the damaged wall 9 of the damaged pipeline.

[0021] A stepped first connecting portion 11 is provided at the large end of the guide head 1, and a first servo motor 31 is also provided around the outer contour of the large end of the guide head 1; the transmission shaft 32 of the first servo motor 31 is connected to the screw push rod 33, and the end of the screw push rod 33 is provided with an inclined block 35; the first servo motor 31 realizes the extension and contraction of the inclined block 35 by controlling the transmission shaft 32 and the screw push rod 33.

[0022] The repair section 4 has a second connecting portion 41 at one end. Two sets of raised sealing blocks 42 are spaced apart on its outer surface. Spouts 44 are located on opposing sides of the two sets of sealing blocks 42, which are connected to a high-pressure pump for pipe repair fluid. A U-shaped groove is formed between the sealing blocks 42 and the outer surface of the repair body 43. The sealing block 42 has a guide hole 34, into which the bevel block 35 is inserted. The groove also houses a coiled expansion ring 8, whose expansion volume is adjusted by threaded connecting rods 82 at both ends.

[0023] The inner wall of the expansion ring 8 contacts the inclined surface of the inclined block 35; the pipe repair coil is wrapped around the expansion ring 8, and the length of the coil does not exceed the inner diameter of the pipe.

[0024] like Figure 5 As shown, the two ends of the expansion ring 8 are respectively fixed with a first support seat 81 and a second support seat 83; the first support seat 81 and the second support seat 83 are moved away from each other by the positive rotation of the connecting rod 82, thereby achieving the expansion of the elongation-adjusting expansion ring 8; conversely, the contraction of the expansion ring 8 is achieved.

[0025] The connecting rod 82 rotates relative to the swing shaft 822 via a second bearing 821. The swing shaft 822 is hingedly connected to the first support block 81 via a first bearing 811. A worm gear is provided on the surface of the connecting rod 82. The second support block 83 is connected to a transmission block 832 via a third bearing 831. The transmission block 832 rotates relative to the second support block 83. A worm gear 833 is located at the center of the transmission block 832, which is in driving connection with the worm gear. The transmission block 832 has a mounting hole into which the connecting rod 82 is inserted. The worm gear 833 is power-connected to the output of a second servo motor. The second servo motor controls the forward and reverse rotation of the worm gear 833, thereby controlling the extension or retraction of the connecting rod 82. Furthermore, the third bearing 831 can be automatically adjusted to accommodate the varying lengths and angles of the connecting rod 82.

[0026] During use, the present invention connects the small-diameter end of the guide head 1 to the pull rope 5, which is connected to the traction device 7 via a fixed guide wheel 61. The traction device 7 can be an electric winch. The guide wheel 61 is mounted on the traction seat 6, the bottom of which is detachably connected to the ground. The traction seat 6 is equipped with a spiral lifting mechanism, and a universal bearing is installed at the end of the spiral lifting mechanism. The universal bearing is connected to the guide wheel 61.

[0027] Working principle of the present invention:

[0028] First, the repair coil is wound around the surface of the expansion ring 8.

[0029] The laser emitter 2 detects the internal contour space of the pipeline and determines the damaged wall 9 at the damaged location; the laser emitter 2 is further used to determine the travel distance so that the two sealing blocks 42 of the repair part 4 are just stuck in the damaged wall 9.

[0030] The high-pressure pump injects the repair liquid into the space between the two sealing blocks 42 through the nozzle 34. The repair liquid will overflow from the damaged wall 9 of the pipeline. When the injection reaches a certain pressure, the injection is stopped.

[0031] The worm gear 833 then controls the extension of the connecting rod 82 to expand the expansion ring 8. The expansion ring 8 will repair the coiled material and then stick it tightly to the damaged wall 9 of the pipe. The coiled material will adhere to the repair liquid to achieve the final repair.

[0032] To ensure the coil remains flush against the pipe's inner wall after solidification, the first servo motor 31 controls the depth of the inclined block 35 inserted into the expansion ring 8 based on the pipe's contour determined by the laser transmitter 2. This allows the expansion ring 8 to provide a compensating tilt for the coil. Ultimately, the expansion ring 8 squeezes the coil to conform to the pipe's inner wall, conforming to the local curvature of the pipe.

[0033] This pipeline repair is done by first using a large amount of repair fluid to overflow from the damaged wall 9, and then using the coiled material to bond and fix it. Relative to the damaged wall 9, the inner wall is repaired and the outer wall is fixed.

Claims

1. A traction-type trenchless pipeline repair intelligent device, characterized by: It comprises a guide head (1) that is generally conical in shape and a repair part (4) that is circular in shape; A plurality of laser emitters (2) are evenly arranged in an annular pattern on the conical surface of the guide head (1); a stepped first connecting portion (11) is provided at the large end of the guide head (1); a first servo motor (31) is also provided around the outer contour of the large end of the guide head (1); a transmission shaft (32) of the first servo motor (31) is connected to a screw push rod (33), and an inclined block (35) is provided at the end of the screw push rod (33); A second connecting portion (41) is provided at one end of the repair portion (4), and two groups of raised sealing blocks (42) are spaced apart on the outer surface of the repair portion (4), and nozzles (44) are provided on the sides of the two groups of sealing blocks (42) facing each other; a groove with a "U"-shaped structure is formed on the outer surface of the sealing block (42) and the repair body (43); the sealing block (42) is provided with a guide hole (34), and the inclined block (35) is inserted into the guide hole (34); the groove is also provided with a wound expansion ring (8), and the two ends of the expansion ring (8) are adjusted to expand by a threaded connecting rod (82); the inner wall of the expansion ring (8) is in contact with the inclined surface of the inclined block (35); The first connecting portion (11) and the second connecting portion (41) are detachably connected; the nozzle (44) is connected to a high-pressure pump of a pipeline repairing fluid.

2. The traction-type trenchless pipeline repair intelligent device according to claim 1 is characterized in that: The two ends of the expansion ring (8) are respectively provided with a first support seat (81) and a second support seat (83); the connecting rod (82) rotates relative to the swing shaft (822) through the second bearing (821), and the swing shaft (822) is hinged to the first support seat (81) through the first bearing (811); the surface of the connecting rod (82) is provided with worm gears; The second support seat (83) is connected to the conduction block (832) via the third bearing (831); a worm gear (833) is provided at the center of the conduction block (832); the worm gear (833) is connected to the worm gear in a transmission manner; A mounting hole is provided in the transmission block (832), and the connecting rod (82) is inserted into the mounting hole.

3. The traction-type trenchless pipeline repair intelligent device according to claim 1 is characterized in that: The expansion ring (8) is wrapped with a pipeline repair coil.

4. The traction-type trenchless pipeline repair intelligent device according to claim 3 is characterized by: The length of the coiled material does not exceed the inner diameter of the pipe.

5. The traction-type trenchless pipeline repair intelligent device according to claim 1 is characterized in that: The small-diameter end of the guide head (1) is connected to a pull rope (5), and the pull rope (5) is connected to a traction device (7) via a fixed guide wheel (61); the guide wheel (61) is provided on a traction seat (6), and the bottom of the traction seat (6) is detachably connected to the ground.

6. The traction-type trenchless pipeline repair intelligent device according to claim 5 is characterized in that: The traction seat (6) is provided with a spiral lifting mechanism, and a universal bearing is provided at the end of the spiral lifting mechanism; the universal bearing is connected to the guide wheel (61).

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