A trenchless pipeline dredging device and dredging process

Abstract

The present application relates to a trenchless pipeline dredging equipment and a dredging process, which includes a dredging device, the dredging device includes a dredging head, a dredging water pipe connected to the dredging head, a reel for unwinding the dredging water pipe, a water storage tank, and a dredging water pump for pumping water in the water storage tank into the dredging water pipe; the trenchless pipeline dredging equipment also includes a dredging scraper detachably mounted on the dredging water pipe and used to scrape off debris on the inner wall of the drainage pipe, the dredging scraper has a limiting through hole for allowing the dredging water pipe to pass and limiting the passage of the dredging head; the dredging scraper is also provided with a plurality of arc-shaped through holes arranged circumferentially and used for passing water sprayed from the high-pressure nozzle of the dredging head. The present application can improve the dredging effect on the drainage pipe.

Description

Technical Field

[0001] The present application relates to the field of pipeline dredging, and in particular to a trenchless pipeline dredging device and a dredging process. Background Art

[0002] Pipeline desilting refers to the process of clearing silt and other waste from drainage pipes in order to maintain the long-term unobstructed flow of drainage pipes and avoid urban waterlogging caused by blockage of drainage pipes.

[0003] The dredging process usually uses a pipeline dredging vehicle. The pipeline dredging vehicle has a dredging head, a water tank for storing water, a dredging pipeline connecting the dredging head and the water tank, and a high-pressure water pump that transports the water in the water tank to the dredging head. A high-pressure nozzle is provided at the tail of the dredging head, and the water pumped into the dredging head by the high-pressure water pump can be sprayed out from the high-pressure nozzle, so that the dredging head has a forward thrust.

[0004] During the desilting process, the desilting personnel place the desilting head at one end of the drainage pipe, which is the desilting start end of the drainage pipe. After turning on the high-pressure water pump, the desilting head shoots out to the other end of the drainage pipe, which is the desilting end end of the drainage pipe. The water pumped into the desilting head by the high-pressure water pump is ejected from the rear end of the desilting head, spraying the silt and other debris in the drainage pipe into the drainage well at the desilting start end of the drainage pipe. Afterwards, the desilting personnel clean the silt and other debris in the drainage well at the desilting start end of the drainage pipe.

[0005] With respect to the above-mentioned related technologies, the inventor believes that it is difficult to remove the debris with strong adhesion on the inner wall of the drainage pipe by using the above-mentioned pipe dredging vehicle to dredge the drainage pipe, and the dredging effect of the drainage pipe needs to be improved. Summary of the invention

[0006] In order to further improve the dredging effect on drainage pipes, the present application provides a trenchless pipe dredging equipment and a dredging process.

[0007] The present application provides a trenchless pipeline desilting device that adopts the following technical solution:

[0008] A trenchless pipeline dredging equipment comprises a dredging device, wherein the dredging device comprises a dredging head, a dredging water pipe connected to the dredging head, a winding rack for unwinding the dredging water pipe, a water storage tank, and a dredging water pump for pumping water in the water storage tank into the dredging water pipe; the trenchless pipeline dredging equipment also comprises a dredging scraper detachably mounted on the dredging water pipe and used to scrape off debris on the inner wall of a drainage pipe, the dredging scraper having a limiting through hole for allowing the dredging water pipe to pass through and restricting the dredging head to pass through; the dredging scraper is also provided with a plurality of circumferentially arranged arc-shaped through holes for allowing water sprayed from a high-pressure nozzle of the dredging head to pass through.

[0009] By adopting the above technical scheme, the dredging water pump is started, and the dredging water pump pumps the water in the water tank into the dredging water pipe. The water flows from the dredging water pipe into the dredging head and is sprayed out from the dredging head, so that the dredging head has a forward thrust. The dredging head sprays water on the inner wall of the drainage pipe during movement. The dredging head passes through the limit hole through which the arc of the dredging scraper passes. At this time, the limit hole restricts the passage of the dredging head, and the winding frame recycles the dredging water pipe. The dredging head drives the dredging scraper to move toward the dredging starting end of the drainage pipe. The dredging scraper scrapes off the silt on the inner wall of the drainage pipe, and can scrape off the debris with strong adhesion on the inner wall of the drainage pipe, thereby improving the dredging effect on the drainage pipe.

[0010] Optionally, the dredging scraper includes a first scraper and a second scraper; the limiting through hole includes a first arc groove arranged on the first scraper and a second arc groove arranged on the second scraper; the first scraper is provided with limiting plugs at both ends of the left and right sides facing the side of the second scraper, and the second scraper is provided with a limiting hole for inserting the limiting plug on the side facing the first scraper.

[0011] By adopting the above technical solution, when the first scraper and the second scraper are separated, the dredging head can pass through the limiting through hole, and when the limiting plug on the first scraper is inserted into the limiting plug hole on the second scraper, the limiting through hole restricts the passage of the dredging head. At this time, the dredging water pipe is reeled in, and the dredging water pipe can drive the dredging scraper to scrape the silt on the inner wall of the drainage pipe, thereby improving the dredging effect on the drainage pipe.

[0012] Optionally, it also includes a lifting platform for extending into the drainage well at the dredging termination end of the drainage pipe, a second lifting mechanism for driving the lifting platform to lift and lower, and a combination device installed on the lifting platform and used to clamp the first scraper and the second scraper on the dredging water pipe and transport them to the drainage pipe; the combination device includes a combination bracket, a first support slidably installed on the combination bracket and used for detachable installation of the first scraper, a second support slidably installed on the combination bracket and used for detachable installation of the second scraper, a vertical drive component for driving the first support and the second support to move relative to each other, and a horizontal drive component for transporting the completed dredging scraper into the drainage pipe.

[0013] By adopting the above technical solution, the second lifting mechanism drives the lifting platform to move to one side of the drainage pipe mouth, so that the dredging scraper is facing the drainage pipe mouth, and the first support and the second support are driven to move toward each other through the vertical driving component, so that the first scraper and the second scraper clamp the dredging water pipe, and the dredging scraper is sent into the drainage pipe through the horizontal driving component, which facilitates the dredging of the drainage pipe.

[0014] Optionally, a first iron block is provided on the side wall of the first scraper, the first support has a first slot for inserting the first iron block, and a first magnet for attracting the first iron block is installed at the bottom of the first slot; a second iron block is provided on the side wall of the second scraper, the second support has a second slot for inserting the second iron block, and a second magnet for attracting the second iron block is installed at the bottom of the second slot.

[0015] By adopting the above technical solution, the first scraper is adsorbed to the side wall of the first support through the first magnetic block, and the second scraper is adsorbed to the side wall of the second support through the second magnetic block. When the first scraper and the second scraper clamp the dredging water pipe, the dredging head drives the first scraper and the second scraper to move toward the dredging starting end of the drainage pipe, so that the first scraper and the second scraper are separated from the magnetic adsorption, which facilitates the dredging of the drainage pipe.

[0016] Optionally, the first scraper is provided with a first guide edge on both sides of the first arc groove for guiding the dredging water pipe into the first arc groove; the second scraper is provided with a second guide edge on both sides of the second arc groove for guiding the dredging water pipe into the second arc groove.

[0017] By adopting the above technical solution, when the dredging head is not aligned with the limiting through hole, the first scraper and the second scraper move toward each other, and the dredging head abuts against the first guide edge or the second guide edge. As the first scraper and the second scraper move, the first guide edge and the second guide edge drive the dredging head to move toward the limiting through hole, thereby facilitating the insertion of the dredging head into the limiting through hole.

[0018] Optionally, roller needles are rotatably mounted on both the first guide edge and the second guide edge.

[0019] By adopting the above technical solution, the roller needle can convert the sliding friction of the dredging water pipe on the first guide edge or the second guide edge into rolling friction, reducing the friction force of the dredging water pipe on the first guide edge or the second guide edge, and facilitating the insertion of the dredging head into the limiting through hole.

[0020] Optionally, a buffer plate for the dredging head to collide with is also provided on the lifting platform.

[0021] By adopting the above technical solution, when the dredging head impacts the buffer plate of the device, the buffer plate buffers the impact force of the dredging head, thereby reducing the risk of damage to the dredging head.

[0022] Optionally, it also includes a silt collection device; the silt collection device includes a first bracket for extending into a drainage well at the dredging starting end of the drainage pipe, a first net frame installed at the bottom end of the first bracket and used for collecting silt, a first lifting mechanism for driving the first bracket to rise and fall, and a silt extraction pump for extracting silt from the first net frame; the first bracket is provided with a clamping assembly that is opposite to the drainage pipe and is used to clamp the dredging water pipe; the top of the first net frame has a net frame opening for silt to flow in.

[0023] By adopting the above technical solution, the dredging scraper scrapes out a large amount of silt, causing the silt to fall into the first net frame through the net frame opening. A large amount of silt is pumped out by the silt extraction pump, and the first lifting mechanism is driven to drive the first bracket to rise, thereby driving the first net frame to rise, and the remaining silt is taken out, which also facilitates the recovery of the device.

[0024] Optionally, the clamping assembly includes a fixed seat mounted on the first bracket, a sliding seat slidably mounted on the first bracket, a first clamping roller rotatably mounted on the fixed seat, a second clamping roller rotatably mounted on the sliding seat, and a clamping spring that drives the second clamping roller to always have a tendency to move in the direction of the first clamping roller.

[0025] By adopting the above technical solution, the clamping spring drives the second clamping roller to move toward the first clamping roller, and the first clamping roller and the second clamping roller clamp the dredging water pipe, thereby positioning the dredging head.

[0026] In a second aspect, the present application provides a dredging process, which adopts the following technical solution:

[0027] A dredging process comprises the following steps: Step 1: blocking both ends of a drainage pipe to be dredged, and sending a dredging head into a drainage well at a dredging start end of the drainage pipe through a winding frame;

[0028] Step S2: starting the dredging water pump to pump water into the dredging head, and the dredging head moves toward the dredging end of the drainage pipe under the reaction force of the water, and the dredging head sprays water onto the inner wall of the drainage pipe;

[0029] Step S3: the dredging head is inserted into the limiting through hole of the dredging scraper, the dredging water pipe is rolled up by the winch, and the dredging scraper is driven to move toward the dredging starting end of the drainage pipe, and the dredging scraper scrapes the inner wall of the drainage pipe.

[0030] By adopting the above technical solution, when it is necessary to clean the drainage pipe, the dredging head can clean the inside of the pipe, and the dredging head can move forward with its own spraying, so as to clean the drainage pipe in a more comprehensive manner. The dredging head is inserted into the limiting through hole of the dredging scraper, and the dredging water pipe is recovered by the winch. The dredging head drives the dredging scraper to move in the drainage pipe, so that the dredging scraper scrapes the inner wall of the drainage pipe, removes the debris with strong adhesion on the inner wall of the drainage pipe, and the water flow can spray and humidify the inner wall of the pipe through the arc through hole, which facilitates the cleaning of the drainage pipe.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By setting up the dredging device, the dredging head drives the dredging scraper to move towards the dredging starting end of the drainage pipe. The dredging scraper scrapes off the silt on the inner wall of the drainage pipe, and can scrape off the debris with strong adhesion on the inner wall of the drainage pipe, thereby improving the dredging effect of the drainage pipe;

[0033] 2. By setting up a combined device, the vertical drive assembly can drive the first support and the second support to move toward each other, so that the first scraper and the second scraper clamp the dredging water pipe, and the dredging scraper is sent into the drainage pipe through the horizontal drive assembly, which facilitates the dredging of the drainage pipe;

[0034] 3. By providing the first guide edge, the second guide edge and the roller needle, it is convenient to guide the dredging head into the limiting through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of trenchless pipeline desilting equipment;

[0036] Figure 2 It is a schematic diagram of the structure of the dredging device;

[0037] Figure 3 It is a cross-sectional view of the dredging head;

[0038] Figure 4 is a structural schematic diagram of a first lifting mechanism;

[0039] Figure 5 is a schematic structural diagram of a clamping assembly, a first screen frame and a first bracket;

[0040] Figure 6 It is a schematic diagram of the structure of the dredging scraper;

[0041] Figure 7 is a structural schematic diagram of the second lifting mechanism;

[0042] Figure 8 It is a structural schematic diagram of the combined device;

[0043] Fig. 9It is a schematic diagram of the explosion structure of the second scraper and the second support;

[0044] Fig.10 It is a structural schematic diagram of the horizontal drive component.

[0045] Description of reference numerals: 1. dredging device; 11. dredging head; 111. water storage chamber; 112. water outlet; 12. dredging water pipe; 13. winding frame; 14. water storage tank; 141. water pipe; 15. dredging water pump; 2. dredging device; 21. first bracket; 211. first support rod; 212. second support rod; 22. first net frame; 221. net frame opening; 23. first lifting mechanism; 231. first support frame; 232. rotating wheel; 233. first traction rope; 234. first take-up frame; 2 35, first hook; 24, silt pump; 241, silt pump; 3, clamping assembly; 31, fixed seat; 311, rolling groove; 312, first lifting ring; 32, sliding seat; 321, first sliding sleeve; 322, second sliding sleeve; 323, connecting rod; 33, first clamping roller; 34, second clamping roller; 35, clamping spring; 351, supporting nut; 4, silt scraper; 41, first scraper; 411, first arc groove; 412, limit plug column; 413, scraping part; 414, arc through hole; 415 , first iron block; 416, first guide edge; 42, second scraper; 421, second arc groove; 422, limit plug hole; 4221, fixed magnetic block; 423, second guide edge; 4231, roller needle; 424, second iron block; 5, lifting platform; 6, second lifting mechanism; 61, second support frame; 62, pulley; 63, second traction rope; 64, second take-up frame; 65, second hook; 7, combined device; 71, combined bracket; 711, guide rail; 712, first guide block; 713, second guide block; 7 2. Vertical drive assembly; 721. Vertical drive member; 722. Bidirectional screw rod; 723. Second screw sleeve; 724. Third screw sleeve; 73. Second support; 731. Second slot; 7311. Second magnet; 74. Horizontal drive assembly; 741. Bottom plate; 7411. Buffer plate; 742. Slide rail; 743. Slider; 744. First screw sleeve; 745. Horizontal drive member; 746. Screw rod; 75. First support; 751. Second lifting ring; 752. First slot; 7521. First magnet. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-10 This application is described in further detail.

[0047] The present application embodiment discloses a trenchless pipeline desilting device. Figure 1 The trenchless pipeline dredging equipment includes a dredging device 1.

[0048] Reference Figure 2The desilting device 1 includes a desilting head 11 for spraying water on the drainage pipe, a desilting water pipe 12 for transporting water, a reeling frame 13 for reeling the desilting water pipe 12, a water storage tank 14 for storing water and providing a water source, and a desilting water pump 15 for pumping water in the water storage tank 14 into the desilting water pipe 12. The reeling frame 13, the water storage tank 14, and the desilting water pump 15 are all fixedly installed in the desilting vehicle.

[0049] Reference Figure 3 The dredging head 11 has a water storage chamber 111 inside, and a plurality of water outlet holes 112 are evenly arranged on the outer wall of the dredging head 11 in the circumferential direction. The water outlet holes 112 are connected to the water storage chamber 111, and the water outlet holes 112 are inclined from the dredging head 11 to the dredging water pipe 12 in a direction away from the axis of the dredging head 11.

[0050] Reference Figure 2 The desilting water pipe 12 has a water inlet end and a water outlet end, the water inlet end is connected to the desilting water pump 15 by a threaded connection, and the water outlet end is connected to the desilting head 11 by a threaded connection. The winding frame 13 is installed in the desilting vehicle by bolts, and the desilting water pipe 12 is wound on the winding frame 13. The desilting water pump 15 is installed in the desilting vehicle by bolts, and the water storage tank 14 is installed in the desilting vehicle by bolts. A water delivery pipe 141 for water delivery is installed between the water storage tank 14 and the desilting water pump 15.

[0051] Reference Figure 1 The trenchless pipeline dredging equipment also includes a silt collecting device 2, which includes a first bracket 21 for extending into a drainage well at the dredging starting end of the drainage pipe, a first net frame 22 installed at the bottom of the first bracket 21 and used to collect silt, a first lifting mechanism 23 for driving the first bracket 21 to rise and fall, and a silt extraction pump 24 for extracting silt from the first net frame 22.

[0052] Reference Figure 4 The first lifting mechanism 23 includes a first support frame 231 erected on the drainage well mouth at the starting end of the drainage pipe for dredging, a rotating wheel 232 rotatably connected to the top of the first support frame 231 through a rotating shaft, a first traction rope 233 transmission-connected to the rotating wheel 232, a first take-up frame 234 for winding the first traction rope 233, and a first hook 235 arranged at the end of the first traction rope 233, and the hook portion of the first hook 235 is hung on the first bracket 21. The first take-up frame 234 can unwind the first traction rope 233, thereby driving the first bracket 21 to move up and down along the length direction of the drainage well.

[0053] Reference Figure 5 The first net frame 22 is arranged in the drainage well at the starting end of the drainage pipe for dredging, and a net frame opening 221 for sludge to flow into is opened at one end of the first net frame 22 away from the bottom of the drainage well.

[0054] The first support 21 includes a first support rod 211 and a second support rod 212 vertically welded to the top of the first mesh frame 22 . The first support rod 211 and the second support rod 212 are respectively located at two sides of the mesh frame opening 221 .

[0055] Reference Figure 4 The silt pump 24 is installed on the ground surface. The silt pump 24 has a silt inlet and a silt outlet. The silt inlet is threadedly connected with a silt pumping pipe 241. The silt pumping pipe 241 extends into the drainage well and is inserted into the net frame opening 221. The silt pump 24 pumps out the silt in the first net frame 22 through the silt pumping pipe 241.

[0056] Reference Figure 5 The first bracket 21 is provided with a clamping assembly 3 for clamping the desilting water pipe 12. The clamping assembly 3 includes a fixed seat 31 mounted on the first bracket 21, a sliding seat 32 slidably mounted on the first bracket 21, a first clamping roller 33 rotatably mounted on the fixed seat 31, a second clamping roller 34 rotatably mounted on the sliding seat 32, and a clamping spring 35 driving the second clamping roller 34 to always move toward the first clamping roller 33.

[0057] The fixing seat 31 is welded to the top of the first support rod 211 and the second support rod 212. A rolling groove 311 is formed at one end of the fixing seat 31 close to the first net frame 22. The first clamping roller 33 is rotatably connected to the rolling groove 311 via a rotating shaft. The mounting seat includes a first sliding sleeve 321 slidably inserted on the first support rod 211, a second sliding sleeve 322 slidably inserted on the second support rod 212, and a connecting rod 323 threadedly connected between the first support rod 211 and the second support rod 212. The second clamping roller 34 is rotatably connected to the connecting rod 323. The first support rod 211 and the second support rod 212 are both threadedly connected with a support nut 351, and the support nut 351 is located on the side of the second clamping roller 34 away from the first clamping roller 33. Two groups of clamping springs 35 are provided, one group of clamping springs 35 is sleeved on the first support rod 211, and the other group of clamping springs 35 is sleeved on the second support rod 212. One end of the clamping spring 35 abuts against the support nut 351, and the other end of the clamping spring 35 abuts against the first sliding sleeve 321 / the second sliding sleeve 322. The clamping spring 35 causes the sliding seat 32 to move toward the fixed seat 31, so that the second clamping roller 34 and the first clamping roller 33 clamp the dredging water pipe 12.

[0058] Reference Figure 5 One end of the fixed seat 31 away from the sliding seat 32 is threadedly connected with a first hanging ring 312 for the first hook 235 to hang.

[0059] Reference Figure 6The trenchless pipeline desilting equipment also includes a desilting scraper 4 for scraping off debris on the inner wall of the drainage pipe. The desilting scraper 4 includes a first scraper 41 and a second scraper 42. The first scraper 41 and the second scraper 42 are both semicircular. The first scraper 41 and the second scraper 42 are spliced ​​together to form a circular plate. A first arc groove 411 is provided at one end of the first scraper 41 close to the second scraper 42, and a second arc groove 421 is provided at one end of the second scraper 42 close to the first scraper 41. After the first scraper 41 and the second scraper 42 are spliced, the first arc groove 411 and the second arc groove 421 form a limit through hole for the desilting water pipe 12 to pass through and restrict the desilting head 11 from passing through.

[0060] Two limiting plugs 412 are integrally and vertically arranged at one end of the first scraper 41 close to the second scraper 42, and the two limiting plugs 412 are located on both sides of the first arc groove 411. A limiting plug hole 422 is provided at one end of the second scraper 42 close to the first scraper 41 for corresponding insertion of the limiting plug 412. A fixed magnetic block 4221 for magnetically attracting the limiting plug 412 is bonded to the bottom of the limiting plug hole 422 of the second scraper 42.

[0061] Reference Figure 1 The dredging device 1 also includes a lifting platform 5 for extending into the drainage well at the terminal end of the drainage pipe, a second lifting mechanism 6 for driving the lifting platform 5 to lift and lower, and a combination device 7 installed on the lifting platform 5 and used to clamp the first scraper 41 and the second scraper 42 in the dredging water pipe 12 and transport them into the drainage pipe.

[0062] Reference Figure 7 The second lifting mechanism 6 includes a second support frame 61 erected on the drainage well mouth at the desilting end of the drainage pipe, a pulley 62 connected to the top of the second support frame 61 through a rotating shaft, a second traction rope 63 connected to the pulley 62, a second take-up frame 64 for winding the second traction rope 63, and a second hook 65 arranged at the end of the second traction rope 63, and the first hook 235 is hung on the combined device 7. The second take-up frame 64 unwinds the second traction rope 63, thereby driving the combined device 7 to move up and down along the length direction of the drainage well.

[0063] Reference Figure 8 The combined device 7 includes a combined bracket 71, a first support 75 slidably mounted on the combined bracket 71 and for mounting the first scraper 41, a second support 73 slidably mounted on the combined bracket 71 and for mounting the second scraper 42, a vertical driving component 72 for driving the first support 75 and the second support 73 to move relative to each other, and a horizontal driving component 74 for delivering the assembled dredging scraper 4 into the drainage pipe.

[0064] The combined bracket 71 includes a guide rail 711 vertically welded to the top of the lifting platform 5 and arranged along the length direction of the drainage well at the terminal end of the drainage pipe, a first guide block 712 slidably connected to the guide rail 711 and installed on the back of the first support 75 by bolts, and a second guide block 713 slidably connected to the guide rail 711 and installed on the back of the second support 73 by bolts. The first support 75 can slide along the length direction of the guide rail 711 through the first guide block 712, and the second support 73 can slide along the length direction of the guide rail 711 through the second guide block 713.

[0065] Reference Figure 8 , the vertical drive assembly 72 is arranged on the lifting platform 5, and the vertical drive assembly 72 includes a vertical drive member 721 fixed to the top of the lifting platform 5 by bolts, a bidirectional screw rod 722 arranged at the output end of the vertical drive member 721 and arranged along the length direction of the drainage well at the end of the drainage pipe, a second screw sleeve 723 threadedly connected to the bidirectional screw rod 722 and installed on the back of the first support 75 by bolts, and a third screw sleeve 724 threadedly connected to the bidirectional screw rod 722 and installed on the back of the first support 75 by bolts. In this embodiment, the vertical drive member 721 is preferably set as a motor, and the output shaft of the motor is connected to the bidirectional screw rod 722 by a key.

[0066] The vertical drive member 721 drives the bidirectional screw rod 722 to rotate. Since the guide rail 711 limits the guide block to slide only along the length direction of the guide rail 711, the second screw sleeve 723 and the third screw sleeve 724 are limited to rotate, so that the second screw sleeve 723 and the third screw sleeve 724 can only slide toward or away from each other in the length direction of the bidirectional screw rod 722, thereby driving the first support 75 and the second support 73 to slide toward or away from each other.

[0067] Reference Figure 8 The first guide block 712 and the second screw sleeve 723 are both fixed to the back of the first support 75 by bolts, and the second guide block 713 and the third screw sleeve 724 are both fixed to the back of the second support 73 by bolts. One end of the first support 75 away from the second support 73 is threadedly connected with a second lifting ring 751.

[0068] Reference Fig.10 The horizontal driving assembly 74 includes a bottom plate 741 disposed at the bottom of the drainage well at the end of the drainage pipe, two slide rails 742 fixed to the bottom plate 741 by bolts and arranged along the length direction of the drainage pipe, two sliders 743 respectively connected to the corresponding slide rails 742 and provided for the installation of the lifting platform 5, a first screw sleeve 744 disposed on the bottom wall of the lifting platform 5, a screw rod 746 threadedly connected to the first screw sleeve 744 and arranged along the length direction of the drainage pipe, and a horizontal driving member 745 driving the screw rod 746 to rotate. In this embodiment, the horizontal driving member 745 is preferably configured as a motor, and the output shaft of the motor is connected to the screw rod 746 by a key.

[0069] The horizontal driving member 745 drives the screw rod 746 to rotate. Since the slider 743 limits the slide rail 742 to move only along the length direction of the slide rail 742, the rotation of the first screw sleeve 744 is limited, so that the first screw sleeve 744 can only move along the length direction of the screw rod 746, thereby driving the lifting platform 5 to slide along the length direction of the pipeline.

[0070] Reference Figure 8 The first scraper 41 has a first iron block 415 integrally and vertically disposed at one end thereof close to the first support 75. The first support 75 has a first slot 752 for inserting the first iron block 415 disposed at one end thereof close to the first scraper 41. The first support 75 has a first magnet 7521 bonded to the bottom of the first slot 752 for attracting the first iron block 415. The first iron block 415 is fixed by magnetic attraction through the first magnet 7521.

[0071] Reference Fig. 9 The second scraper 42 is vertically provided with a second iron block 424 at one end close to the second support 73, and the second support 73 is provided with a second slot 731 for inserting the second iron block 424 at one end close to the second scraper 42. The second support 73 is bonded with a second magnet 7311 for attracting the second iron block 424 at the bottom of the second slot 731. The second iron block 424 is fixed by magnetic attraction through the second magnet 7311.

[0072] Reference Figure 6 The first scraper 41 is provided with first guide edges 416 on both sides of the first arc groove 411 for guiding the dredging water pipe 12 into the first arc groove 411. The second scraper 42 is provided with second guide edges 423 on both sides of the second arc groove 421 for guiding the dredging water pipe 12 into the second arc groove 421. The first guide edge 416 and the second guide edge 423 are both rotatably mounted with roller needles 4231. When the first scraper 41 and the second scraper 42 move toward each other, the dredging water pipe 12 is clamped between the first guide edge 416 and the second guide edge 423, and the roller needle 4231 pushes the dredging water pipe 12 to move into the limiting through hole.

[0073] The first scraper 41 and the second scraper 42 are integrally provided with a semi-circular scraping portion 413 at one end away from the first iron block 415, and the cross section of the scraping portion 413 is triangular. The scraping portion 413 can be provided to more easily scrape the dirt on the inner wall of the drainage pipe.

[0074] Reference Figure 6 The first scraper 41 and the second scraper 42 are both provided with arc-shaped through holes 414 that penetrate through both ends thereof. When the reeling frame 13 is recovered, the desilting head 11 sprays water from the arc-shaped through holes 414 to the inner wall of the drainage pipe, flushing the inner wall of the drainage pipe, thereby improving the scraping efficiency of the scraping part 413.

[0075] A buffer plate 7411 is vertically welded on the top of the lifting platform 5. The buffer plate 7411 is located between the first scraper 41 and the second scraper 42. When the dredging head 11 impacts the drainage well at the dredging end of the drainage pipe, the buffer plate 7411 buffers the dredging head 11, reducing the risk of damage to the dredging head 11.

[0076] The implementation principle of the trenchless pipeline desilting device of the embodiment of the present application is as follows: when the drainage pipeline needs to be cleaned, the water in the water storage tank 14 is pumped into the desilting pipeline by a water pump, and the water is sprayed out from the water outlet 112 of the desilting pump, so that the desilting head 11 has a forward thrust, and the desilting head 11 cleans the inner wall of the drainage pipeline during the forward movement. When the desilting head 11 hits the buffer plate 7411, the vertical driving member 721 is started, and the vertical driving member 721 drives The first scraper 41 and the second scraper 42 move towards each other, the first scraper 41 and the second scraper 42 clamp the dredging water pipe 12, the winder is recovered, the dredging water pipe 12 drives the first scraper 41 and the second scraper 42 to move toward the dredging starting end of the drainage pipe, the first scraper 41 and the second scraper 42 scrape the inner wall of the drainage pipe, the first scraper 41 and the second scraper 42 scrape the scraped sludge into the first net frame 22, and the sludge extraction pump 24 pumps the sludge in the net frame.

[0077] The embodiments of the present application also disclose a dredging process.

[0078] Determine the required drainage pipe, and seal both ends of the drainage pipe that needs to be desilted. Send the desilting head 11 into the drainage well at the desilting start end of the drainage pipe through the winding frame 13. Start the water pump, and the water pump pumps the water in the water storage tank 14 into the desilting pipe, and sprays it out from the water outlet 112 of the desilting head 11, so that the desilting head 11 moves forward to the desilting end end of the drainage pipe, and the desilting head 11 sprays the inner wall of the drainage pipe during the moving process.

[0079] When the dredging head 11 hits the buffer plate 7411, the vertical driving member 721 is started, and the vertical driving member 721 drives the first scraper 41 and the second scraper 42 to move toward each other. After the first scraper 41 and the second scraper 42 are spliced, the dredging water pipe 12 is inserted into the limiting through hole.

[0080] The winch is started to reel in the dredging water pipe 12, and the dredging head 11 drives the first scraper 41 and the second scraper 42 to move toward the drainage well at the dredging end. The first scraper 41 and the second scraper 42 scrape the dirt on the inner wall of the drainage pipe during the movement.

[0081] After the dirt is scraped into the first net frame 22, the sludge extraction pump 24 is started to extract the sludge.

[0082] 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 desilting device, comprising a desilting device (1), the desilting device (1) comprising a desilting head (11), a desilting water pipe (12) connected to the desilting head (11), a reeling frame (13) for unwinding the desilting water pipe (12), a water storage tank (14), and a desilting water pump (15) for pumping water in the water storage tank (14) into the desilting water pipe (12); characterized in that: The trenchless pipeline desilting device further comprises a desilting scraper (4) detachably mounted on the desilting water pipe (12) and used to scrape off debris on the inner wall of the drainage pipe, the desilting scraper (4) having a limiting through hole for allowing the desilting water pipe (12) to pass through and limiting the passage of the desilting head (11); the desilting scraper (4) is further provided with a plurality of arc-shaped through holes (414) arranged in a circumferential direction and used to allow water ejected from the high-pressure nozzle of the desilting head (11) to pass through; The dredging scraper (4) comprises a first scraper (41) and a second scraper (42); the limiting through hole comprises a first arc groove (411) arranged on the first scraper (41) and a second arc groove (421) arranged on the second scraper (42); the first scraper (41) is provided with limiting plug posts (412) at both left and right ends of the side facing the second scraper (42); the second scraper (42) is provided with a limiting plug hole (422) for inserting the limiting plug post (412) on the side facing the first scraper (41).

2. A trenchless pipeline desilting device according to claim 1, characterized in that: It also includes a lifting platform (5) for extending into the drainage well at the dredging end end of the drainage pipe, a second lifting mechanism (6) for driving the lifting platform (5) to lift and lower, and a combination device (7) installed on the lifting platform (5) and used to clamp the first scraper (41) and the second scraper (42) on the dredging water pipe (12) and transport them into the drainage pipe; the combination device (7) includes a combination bracket (71), a first support (75) slidably mounted on the combination bracket (71) and used for detachably mounting the first scraper (41), a second support (73) slidably mounted on the combination bracket (71) and used for detachably mounting the second scraper (42), a vertical drive component (72) for driving the first support (75) and the second support (73) to move relative to each other, and a horizontal drive component (74) for transporting the assembled dredging scrapers (4) into the drainage pipe.

3. A trenchless pipeline desilting device according to claim 2, characterized in that: A first iron block (415) is provided on the side wall of the first scraper (41), the first support (75) has a first slot (752) for inserting the first iron block (415), and a first magnet (7521) for attracting the first iron block (415) is installed at the bottom of the first slot (752); a second iron block (424) is provided on the side wall of the second scraper (42), the second support (73) has a second slot (731) for inserting the second iron block (424), and a second magnet (7311) for attracting the second iron block (424) is installed at the bottom of the second slot (731).

4. The trenchless pipeline desilting equipment according to claim 2, characterized in that: The first scraper (41) is provided with first guide edges (416) on both sides of the first arc groove (411) for guiding the dredging water pipe (12) into the first arc groove (411); the second scraper (42) is provided with second guide edges (423) on both sides of the second arc groove (421) for guiding the dredging water pipe (12) into the second arc groove (421).

5. The trenchless pipeline desilting equipment according to claim 4, characterized in that: A roller needle (4231) is rotatably mounted on both the first guide edge (416) and the second guide edge (416).

6. The trenchless pipeline desilting equipment according to claim 2, characterized in that: The lifting platform (5) is also provided with a buffer plate (7411) for the dredging head (11) to impact.

7. The trenchless pipeline desilting equipment according to claim 1, characterized in that: It also comprises a silt collecting device (2); the silt collecting device (2) comprises a first bracket (21) for extending into a drainage well at a silt removal starting end of a drainage pipe, a first net frame (22) installed at the bottom end of the first bracket (21) and for collecting silt, a first lifting mechanism (23) for driving the first bracket (21) to lift and lower, and a silt extraction pump (24) for extracting silt from the first net frame (22); the first bracket (21) is provided with a clamping assembly (3) facing the drainage pipe and for clamping the silt removal water pipe (12); the top of the first net frame (22) has a net frame opening (221) for allowing silt to flow in.

8. The trenchless pipeline desilting equipment according to claim 7, characterized in that: The clamping assembly (3) comprises a fixed seat (31) mounted on the first bracket (21), a sliding seat (32) slidably mounted on the first bracket (21), a first clamping roller (33) rotatably mounted on the fixed seat (31), a second clamping roller (34) rotatably mounted on the sliding seat (32), and a clamping spring (35) driving the second clamping roller (34) to always have a tendency to move in the direction of the first clamping roller (33).

9. A dredging process, characterized in that: The trenchless pipeline desilting device described in claim 1 comprises the following steps: Step S1: blocking both ends of the drainage pipe that needs to be desilted, and sending the desilting head (11) into the drainage well at the desilting start end of the drainage pipe through the winding frame (13); Step S2: starting the dredging water pump (15) to pump water into the dredging head (11); the dredging head (11) moves toward the dredging end of the drainage pipe under the reaction force of the water, and the dredging head (11) sprays water onto the inner wall of the drainage pipe; Step S3: the dredging head (11) is inserted into the limiting through hole of the dredging scraper (4), and the dredging water pipe (12) is rolled up by a winch to drive the dredging scraper (4) to move towards the dredging starting end of the drainage pipe, so that the dredging scraper (4) scrapes the inner wall of the drainage pipe.

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