Pipe network reconstruction and expansion siltation cleaning device capable of dredging while water passes through
By designing adjustable-length struts, elastic rods, and differential track drive units, the problems of insufficient pipe diameter adaptability, sludge removal and water flow coordination, and complex pipeline passage capacity of pipeline dredging devices have been solved, achieving efficient and stable pipeline dredging results.
Patent Information
- Application Number
- CN202511576086.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-02-03
AI Technical Summary
Existing pipeline dredging equipment has shortcomings in terms of pipe diameter adaptability, dredging and water flow coordination, and the ability to pass through complex pipelines, resulting in low operating efficiency and incomplete dredging.
It adopts adjustable-length struts, elastic rods, and differential track drive units, combined with swirl impellers and scraper designs, to achieve adaptability to different pipe diameters and complex pipelines and efficient dredging. It uses water flow to assist in dredging and ensures that the device can work normally even without electricity.
It significantly improved the operating range and efficiency of the device, reduced the frequency of equipment replacement and energy consumption, increased the dredging coverage and traffic stability, and met the dredging needs of complex pipelines.
Smart Images
Figure CN121451673A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of pipeline cleaning, and particularly relates to a pipe network reconstruction and expansion silt cleaning device for water passing and silt cleaning. BACKGROUND
[0002] In the long-term operation of urban pipe networks, silt is formed by the deposition of mud and sundries carried by sewage, which not only reduces the drainage capacity, but also may cause problems such as pipe blockage and corrosion. Therefore, silt maintenance needs to be carried out regularly. In pipe network reconstruction and expansion projects, in order to avoid the impact of water interruption on residents' life and industrial production, the technology of water passing and silt cleaning becomes a key requirement. However, the existing devices still have the following technical pain points:
[0003] 1. Poor pipe diameter adaptability: Traditional silt cleaning devices are mostly designed with fixed sizes, which are difficult to adapt to different specifications of pipes. For the irregular pipe diameter and local deformation commonly seen in old pipe networks, it is easy to cause jamming or silt cleaning blind area, and the equipment needs to be frequently replaced, resulting in low operation efficiency.
[0004] 2. Insufficient silt cleaning and water passing coordination: The matching of the silt cleaning mechanism of the existing device with the water flow direction is poor. Under the water passing state, the water flow is easy to impact the silt to form secondary accumulation. When the scraper rigidly contacts the inner wall of the pipe, the silt cleaning is not complete due to water flow disturbance, especially at the pipe turning place, the silt residual rate can reach more than 30%.
[0005] 3. Weak passing capacity of complex pipes: For pipes with right-angle bends and variable-diameter sections, the traditional wheeled or tracked moving mechanism has insufficient turning flexibility and low differential control precision, which is easy to cause side slipping or collision. Moreover, the adhesion of the moving wheel to the inner wall of the pipe decreases with the change of the pipe diameter, affecting the travel stability. SUMMARY
[0006] In view of the problems raised in the above background technology, the purpose of the present application is to provide a pipe network reconstruction and expansion silt cleaning device for water passing and silt cleaning.
[0007] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:
[0008] A pipe network reconstruction and expansion silt cleaning device for water passing and silt cleaning, the entire device is waterproof, comprising a central shaft column, three length-adjustable struts are installed equidistantly on the outer side of the central shaft column, a moving mechanism is fixedly installed at the end of the struts, a rotating shaft is installed inside the central shaft column through a bearing, a cyclone impeller is fixedly installed at the end of the rotating shaft, a ball hinge head is fixedly installed at the other end of the rotating shaft, a central rod is fixedly installed at the other end of the ball hinge head, a plurality of elastic rods are installed equidistantly on the outer side of the central rod, a scraper is installed at the end of the elastic rod, and a guide circular arc is arranged on the side of the scraper away from the cyclone impeller.
[0009] The sealing box is internally integrated with a first motor, a first PLC control board and a first power supply, the output end of the first motor is keyed connected with a first bevel gear, the first bevel gear is meshed and matched with a second bevel gear, and the second bevel gear is fixedly installed on the rotating shaft.
[0010] Further limited, the support rod includes a sleeve fixedly connected with the outer surface of the central column, the sleeve is rotationally installed with a hexagonal nut, the hexagonal nut is threadedly connected with a threaded rod, and the moving mechanism is installed at the end of the threaded rod, so as to adjust the circular range formed by the moving mechanism on the circumference, and further adapt to pipes with different diameters.
[0011] Further limited, the moving mechanism includes a shell, the shell is transparent on the circumference, the shell is internally installed with an image data acquisition head, a second motor, a second PLC control board and a second power supply, the output end of the second motor is connected with a moving wheel, the moving wheel is an anti-skid moving wheel, can detect the situation in the pipe, and can remotely and forcibly control the moving mechanism to move as needed.
[0012] Further limited, the rotating flow impeller can be replaced by multiple diameter specifications, the rotating flow impeller includes a water baffle, the water baffle is uniformly installed with a plurality of water baffles, the water baffles are arc-shaped, the rotating flow impeller rotates when subjected to water flow impact, and is adapted to pipes with different water quantities and diameters.
[0013] Further limited, the end of the rotating shaft on which the rotating flow impeller is installed is a hexahedron, a hexagonal sleeve is integrally formed on the central axis of the rotating flow impeller, the hexagonal sleeve is sleeved on the end of the rotating flow impeller, the hexagonal sleeve and the end of the rotating flow impeller are provided with lock holes corresponding to each other, the replacement of the rotating flow impeller is realized, and the stability after installation is ensured.
[0014] Further limited, the elastic rod includes a straight cylinder fixedly installed on the central rod, the straight cylinder is symmetrically provided with a sliding slot, the straight cylinder is internally slidably installed with a moving column, the moving column is integrally formed with a sliding block, the sliding block is located in the sliding slot, a spring is arranged between the moving column and the straight cylinder, the spring is located in the straight cylinder, and an adjusting nut is threadedly connected with the outside of the straight cylinder, the spring provides continuous resistance pressure, the adjusting nut limits the maximum moving range and prevents the scraping plate from falling out, and the scraping plate is conveniently put into the pipe at the first time.
[0015] Further limited, the support rod can be replaced by the elastic rod, a continuous resistance force is provided for the moving mechanism, but it is necessary to consider that the moving mechanism also has the possibility of slipping under the elasticity.
[0016] Further limited, the moving mechanism is a differential track driving unit, the differential track driving unit includes at least two groups of track modules with independently controllable rotating speeds, the rotating speed of each group of track modules is dynamically adjusted by a PID controller according to a pipe turning angle, and different pipe moving environments are better adapted.
[0017] Further limited, a one-way overrunning clutch is arranged between the output shaft of the first motor and the first bevel gear, when the first motor is not powered, the one-way overrunning clutch allows the rotating shaft to rotate freely independently of the first motor, and the rotating shaft can be rotated by water flow alone, thereby saving the power consumption of the first motor.
[0018] Further limited, the first PLC control board and the second PLC control board are both integrated with wireless communication modules, and data interaction is realized between the two and the remote manual platform through wireless signals;The first power supply and the second power supply both include a hybrid energy supply unit, the hybrid energy supply unit is composed of a flexible solar film, a lithium battery pack and a micro hydroelectric generator, wherein the solar film is laid on the outer surface of the sealed box and the shell, the micro hydroelectric generator is installed on one side of the rotating impeller and is driven by water flow, and the lithium battery pack is electrically connected with the solar film and the micro hydroelectric generator, realizing remote control and solar charging functions.
[0019] The beneficial effects of the application are as follows:
[0020] The device effectively covers the main pipe specifications through the double-adaptation structure of the "length-adjustable support rod + elastic rod": on the one hand, the support rod can accurately adjust the extension length through the threaded cooperation of the sleeve and the threaded rod, and adapt to different standard pipe diameters;On the other hand, the elastic rod can automatically compensate for the local deformation of the old pipe network, irregular pipe diameter and other deviations with the buffering action of the spring in the straight cylinder, avoiding the problems of "stuck pipe" or "dredging blind area" of traditional fixed-size devices, and the support rod can also be directly replaced by the elastic rod, further strengthening the adaptation flexibility to complex pipe diameters, without frequent equipment replacement, the operation range of a single device is increased by more than 3 times, the equipment switching cost in pipe network reconstruction and expansion is significantly reduced, and the operation efficiency is increased by more than 40%.
[0021] The application aims at dredging pain points in water passing state, and the device realizes "water flow assisted dredging and no secondary accumulation" through multiple structure cooperation: first, the arc-shaped water baffle of the cyclone impeller is consistent with the bending direction of the water flow impact direction, which can not only drive the impeller to rotate with the help of the water flow, but also form a local cyclone to guide the separated silt to the downstream collection area to avoid the backflow of silt caused by water flow impact; second, the guide arc on the water side of the scraper can reduce the resistance interference of the water flow on the scraper, and can assist in guiding during turning, and the pre-tightening force of the elastic rod can ensure that the scraper is always attached to the inner wall of the pipeline, so that "no dead angle scraping" can be realized through the multi-angle adjustment of the ball hinge head, the silt residue rate is reduced from more than 30% of the traditional to less than 5%, and the problem of incomplete dredging under the water passing condition is solved;
[0022] The device breaks through the passing bottleneck of the right-angle bend and the variable-diameter section through "flexible moving mechanism + precise differential speed control": for conventional pipelines, the moving mechanism adopts moving wheels driven by independent motors, and cooperates with the radial support of the supporting rod to ensure the adhesion of the moving wheels to the inner wall of the pipeline, avoiding the problem of "adhesion decrease when the pipe diameter changes" of the traditional wheel type mechanism; for complex sections such as right-angle bends and variable-diameter sections, the moving mechanism can be replaced by a differential track drive unit, and two groups of track modules realize independent speed regulation through a PID controller, which can dynamically adjust the speed of the two sides of the track according to the turning angle of the pipeline to avoid side slipping or collision; at the same time, the buffering characteristics of the elastic rod can compensate the contact deviation of the track and the pipe wall to ensure the stability of the movement when the pipe diameter fluctuates or turns, so that the passing rate of the device in the 90° right-angle bend pipeline is improved from 60% of the traditional to 100%, meeting the dredging needs of complex pipelines in pipe network reconstruction and expansion. BRIEF DESCRIPTION OF DRAWINGS
[0023] The application can be further illustrated by the non-limiting embodiments shown in the drawings;
[0024] Figure 1 The structure diagram of the pipe network reconstruction and expansion silt cleaning device for dredging while passing water according to the application Figure 1 ;
[0025] Figure 2 The structure diagram of the pipe network reconstruction and expansion silt cleaning device for dredging while passing water according to the application Figure 2 ;
[0026] Figure 3 The structure diagram of the pipe network reconstruction and expansion silt cleaning device for dredging while passing water according to the application
[0027] Figure 4 The Figure 3 enlarged structure diagram of A in the application
[0028] The main element symbols are as follows:
[0029] Middle shaft column 1; support rod 2; moving mechanism 3; rotating shaft 4; cyclone impeller 5; ball hinge head 6; center rod 7; elastic rod 8; scraper 9; guide circular arc 10; sealing box 11; first motor 12; first PLC control board 13; first power supply 14; first bevel gear 15; second bevel gear 16;
[0030] Sleeve 21; hexagonal nut 22; threaded rod 23;
[0031] Shell 31; image data acquisition head 32; second motor 33; second PLC control board 34; second power supply 35; moving wheel 36;
[0032] Water baffle 51; water baffle 52; hexagonal sleeve 53; lock hole 54;
[0033] Straight cylinder 81; sliding slot 82; moving column 83; sliding block 84; spring 85; adjusting nut 86. DETAILED DESCRIPTION
[0034] In order to make the skilled in the art can better understand the present application, the following combining with the drawings and examples of the present application technical scheme is further explained.
[0035] As Figures 1-4 The present application is a pipe network expansion and reconstruction silt cleaning device that can clean silt while water flows, the entire device is waterproof, including a middle shaft column 1, three length-adjustable support rods 2 are installed equidistantly on the outer side of the middle shaft column 1, a moving mechanism 3 is fixedly installed at the end of the support rod 2, a rotating shaft 4 is installed inside the middle shaft column 1 through a bearing, a cyclone impeller 5 is fixedly installed at the end of the rotating shaft 4, a ball hinge head 6 is fixedly installed at the other end of the rotating shaft 4, a center rod 7 is fixedly installed at the other end of the ball hinge head 6, a plurality of elastic rods 8 are installed equidistantly on the outer side of the center rod 7, a scraper 9 is installed at the end of the elastic rod 8, and a guide circular arc 10 is arranged on the side of the scraper 9 away from the cyclone impeller 5.
[0036] A sealing box 11 is fixedly installed on the outer side of the middle shaft column 1, a first motor 12, a first PLC control board 13 and a first power supply 14 are integrally installed inside the sealing box 11, a first bevel gear 15 is key-connected to the output end of the first motor 12, a second bevel gear 16 is meshed and matched with the first bevel gear 15, and the second bevel gear 16 is fixedly installed on the rotating shaft 4.
[0037] In the embodiment, when using a pipe network reconstruction and expansion silt cleaning device for water and silt removal, a central shaft column 1 is used as the core bearing structure. Three length-adjustable support rods 2 are welded and fixed on the outer side of the central shaft column 1 in a 120° equiangular manner in the circumferential direction to ensure that the three support rods 2 are balanced in force and form a stable triangular support structure. It should be noted that the three support rods 2 are the minimum requirement, and the number of support rods 2 and the number of moving mechanisms 3 installed at the ends of the support rods 2 are not limited according to the cost and actual demand. The ends of the support rods 2 away from the central shaft column 1 are correspondingly installed with moving mechanisms 3 through bolts, so that the moving mechanisms 3 can provide uniform support force when they are attached to the inner wall of the pipeline. An IP68 level waterproof bearing is arranged in the central shaft column 1 along the axis direction to pass through a rotating shaft 4. One end of the rotating shaft 4 is coaxially fixed with a cyclone impeller 5 through a flat key, and the other end is fixed with a ball hinge head 6 through welding. The ball hinge head 6 can realize multi-angle rotation of ±30°, and the end away from the rotating shaft 4 is rigidly connected with a central rod 7 through a thread. A plurality of elastic rods 8 including but not limited to 3-6 elastic rods 8 are welded and fixed on the outer side of the central rod 7 in an equiangular manner in the circumferential direction. The free ends of the elastic rods 8 are fixed with scraper plates 9 through bolts, and the scraper plates 9 are integrally formed with guide arcs 10 on the side away from the cyclone impeller 5. A sealing box 11 is fixed on the outer side of the central shaft column 1 through welding. A first motor 12, a first PLC control board 13 and a first power supply 14 are integrally fixed in the sealing box 11 through a support. The output shaft of the first motor 12 is connected with a first bevel gear 15 through a key. The first bevel gear 15 is engaged with a second bevel gear 16 fixed in the middle of the rotating shaft 4 to complete the power transmission assembly. When working, if power is connected, the first motor 12 drives the rotating shaft 4 to rotate through the first bevel gear 15 and the second bevel gear 16. The rotating shaft 4 synchronously drives the cyclone impeller 5 and the central rod 7 to rotate. The elastic rods 8 make the scraper plates 9 always adhere to the inner wall of the pipeline due to the internal spring pre-tightening force, so as to realize 360° dead angle-free silt cleaning. The guide arcs 10 adhere to the pipe wall when the pipeline turns, and guide the device to smoothly turn. If the power is cut off, the water flow in the pipeline impacts the cyclone impeller 5, drives the rotating shaft 4 to rotate independently, and at the same time, the water flow pushes the whole device to move along the axis of the pipeline. The scraper plates 9 rotate with the central rod 7 to continuously scrape the accumulated material on the pipe wall.
[0038] The scheme highly integrates the cyclone impeller 5 and the scraper plates 9 for silt cleaning, the support rods 2 and the moving mechanisms 3 for movement, and the first PLC control board 13 and the second PLC control board 34 for control around the central shaft column 1. There are no redundant hydraulic pumps, air pumps and other complex components, and the structure is simpler and more reasonable. The existing technology needs independent silt cleaning power and movement power modules, and cannot work at all after power failure. The scheme can realize “device movement + scraper plate 9 rotation silt cleaning” only by relying on water flow without power input, greatly reduces energy consumption, and fills the technical gap of water and silt removal under no power condition.
[0039] Preferably, the support rod 2 comprises a sleeve 21 fixedly connected with the outer surface of the central shaft column 1, the sleeve 21 is rotatably installed with a hexagonal nut 22, the hexagonal nut 22 is threadedly connected with a threaded rod 23, and the moving mechanism 3 is installed at the end of the threaded rod 23.
[0040] In the embodiment, one end of the sleeve 21 of the support rod 2 is fixedly welded with the outer surface of the central shaft column 1, and the outer peripheral wall of the other end of the sleeve 21 is rotatably sleeved with the hexagonal nut 22 through a deep groove ball bearing, which is not limited to. The bearing limits the hexagonal nut 22 to rotate only around the axis of the sleeve 21 and cannot move axially. The inner hole of the hexagonal nut 22 is processed with internal threads, which precisely matches the external threads of the threaded rod 23. One end of the threaded rod 23 is rigidly connected with the shell 31 of the moving mechanism 3 through a flange. Since the moving mechanism 3 needs to be attached to the inner wall of the pipeline to maintain stability, the threaded rod 23 remains fixed with the moving mechanism 3 and cannot rotate synchronously with the hexagonal nut 22. When adjusting the distance between the moving mechanism 3 and the central shaft column 1, the hexagonal nut 22 is manually rotated by a wrench. Since the threaded rod 23 is fixed and cannot rotate, and the hexagonal nut 22 is limited to rotation only by the bearing, the axial force generated by the threaded connection will push the hexagonal nut 22 to move along the axis of the threaded rod 23. The hexagonal nut 22 is fixed with the central shaft column 1 through the sleeve 21, so the movement of the hexagonal nut 22 will drive the sleeve 21 and the central shaft column 1 to move closer to or away from the moving mechanism 3, finally changing the length distance of the moving mechanism 3 relative to the central shaft column 1, realizing the adaptation of the support range formed by the three support rods 2 to the inner diameter of the pipeline. After the adjustment is completed, the self-locking property of the thread can ensure that the position of the hexagonal nut 22 is fixed, without the need for additional locking structure.
[0041] In the prior art, the adjustable support rod is mostly of the structure that the threaded rod rotates to drive the moving part to stretch and retract, which is easy to cause the moving mechanism to rotate and deviate with the threaded rod, thereby damaging the stability of the attachment to the inner wall of the pipeline. The present scheme ensures that the moving mechanism 3 always maintains the original posture without rotating through the design that the hexagonal nut 22 rotates and moves by itself and the threaded rod 23 is fixed and cannot rotate, thereby improving the attachment degree of the moving wheel 36 or the track to the pipe wall by 80% and avoiding the risk of jamming caused by posture deviation. At the same time, the pure mechanical threaded adjustment does not require an additional power source, and the operation only needs an ordinary wrench. Compared with the hydraulic / gas support rod, the structural complexity is reduced by 50%, and the maintenance cost is reduced by 40%.
[0042] Preferably, the moving mechanism 3 comprises a shell 31, the shell 31 is transparent on the side, and the shell 31 is internally installed with an image data acquisition head 32, a second motor 33, a second PLC control board 34 and a second power supply 35. The output end of the second motor 33 is connected with a moving wheel 36, and the moving wheel 36 is an antiskid moving wheel.
[0043] In this embodiment, the shell 31 of the moving mechanism 3 is made of ABS waterproof material with a wall thickness of 5 mm, and a high-transparency acrylic transparent window is embedded on the side of the shell 31 to ensure that the image acquisition is not blocked. The 1080P waterproof image data acquisition head 32, the 60W DC second motor 33, the STM32 series second PLC control board 34, and the 12V / 5Ah second power supply 35 are fixed in the shell 31 by a plastic support. The output shaft of the second motor 33 penetrates through the waterproof sealing ring of the shell 31 and is connected to the moving wheel 36 through a shaft coupling. The moving wheel 36 is made of rubber material and has a rhombic anti-skid pattern on the surface to enhance the friction with the pipe wall. During operation, the image data acquisition head 32 captures the pipe wall deposition in real time through the transparent window, and the data is transmitted to the remote manual platform through the wireless module integrated in the second PLC control board 34. The remote operator determines the deposition position according to the image, including but not limited to the deposition thickness at the bottom of the pipe and the deposition outside the bend. After receiving the command from the platform, the second PLC control board 34 controls the start and stop of the second motor 33 and the rotation speed to drive the moving wheel 36 to move the device to the target dredging area accurately. If the device is stuck locally, the moving wheel 36 can be adjusted to reverse direction by remote command to escape. The moving mechanism of the prior art only has basic driving function and needs to be used with a separate pipe detection robot to detect the deposition position, which has a redundant process of "detection-dredging" in steps. In this scheme, the image data acquisition head 32, the moving driving second motor 33, the moving wheel 36, and the control second PLC control board 34 are integrated in the shell 31 to realize "real-time detection-accurate dredging" simultaneously, reduce the operation steps, and save 30% of the operation time. At the same time, the traditional moving wheel has a smooth surface and is easy to slip on a muddy pipe wall. The rhombic anti-skid pattern on the moving wheel 36 of this scheme increases the friction by 50%. Even on a pipe wall with more than 80% water content, the device can still move stably, solving the slipping problem of the traditional wheel mechanism.
[0044] Preferably, the cyclone impeller 5 can be replaced with multiple diameter specifications. The cyclone impeller 5 includes a water baffle 51, and the water baffle 51 is uniformly provided with a plurality of water baffles 52. The water baffles 52 are arc-shaped, and the cyclone impeller 5 rotates when impacted by water flow.
[0045] In this embodiment, the cyclone impeller 5 is pre-fabricated in multiple diameter specifications according to the inner diameter of the pipe, such as a 200mm diameter impeller for DN300 pipes, a 350mm diameter impeller for DN500 pipes, and an 800mm diameter impeller for DN1000 pipes. The water baffle 51 of the cyclone impeller 5 is made of stainless steel. One side of the water baffle 51 is provided with 6-8 arc-shaped water baffles 52 welded at an equal angle of 45° in the circumferential direction. The bending direction of the water baffles 52 is consistent with the rotation direction of the cyclone impeller 5 when impacted by water flow, and the bending angle is 120°, which ensures that the water impact can be efficiently converted into rotational power. The cyclone impeller of the prior art is usually of fixed size. When the water flow in the pipe is 50m3 / h or 100m 3 / h or pipe diameter, the impeller is prone to rotation efficiency decline due to uneven force, and the decline amplitude can reach 40%, or even appear to be stuck; the scheme can precisely adapt to different water flow and pipe diameter of the pipeline through the replaceable different diameter cyclone impeller 5, ensure that the water flow impact efficiency always remains above 80%; at the same time, compared with the traditional straight water baffle, the resistance of the arc-shaped water baffle 52 is reduced by 30% when the water flow impacts, and the rotation stability is significantly improved, which provides continuous rotation power for the dredging of the scraper 9.
[0046] Preferably, the end of the rotating shaft 4 installed with the cyclone impeller 5 is a hexahedron, and a hexagonal sleeve 53 is integrally formed on the central axis of the cyclone impeller 5, the hexagonal sleeve 53 is sleeved on the end of the cyclone impeller 5, and the hexagonal sleeve 53 and the end of the cyclone impeller 5 are provided with lock holes 54 corresponding to each other.
[0047] In the embodiment, one end of the rotating shaft 4 installed with the cyclone impeller 5 is processed into a regular hexahedron structure; a regular hexagonal sleeve 53 is integrally formed at the central axis of the cyclone impeller 5 by injection molding, the inner hole size of the hexagonal sleeve 53 matches the diameter of the circumscribed circle of the hexahedron end of the rotating shaft 4, ensuring that the hexagonal sleeve 53 can be tightly sleeved on the hexahedron end of the rotating shaft 4; lock holes 54 are respectively processed at the corresponding positions of the middle of the side surface of the hexahedron of the rotating shaft 4 and the hexagonal sleeve 53, during assembly, the hexagonal sleeve 53 of the cyclone impeller 5 is axially sleeved on the hexahedron end of the rotating shaft 4 until the end surface of the hexagonal sleeve 53 is attached to the stepped surface of the rotating shaft 4, at this time, the lock holes 54 of the two are completely aligned; the positioning pin is inserted from the lock hole 54 on one side of the hexagonal sleeve 53 until the other end of the positioning pin protrudes from the lock hole 54 on the other side of the rotating shaft 4, completing the fixation of the cyclone impeller 5; when disassembling, the anti-extrusion fixing at the end of the positioning pin is removed, then the positioning pin is taken out, further, in order to ensure stability, a screw can also be used in cooperation with a threaded hole, which is not difficult for those skilled in the art to understand, that is, the cyclone impeller 5 can be axially removed, the regular hexahedron and the hexagonal sleeve 53 are cooperated to realize quick positioning, the positioning pin is inserted into the lock hole 54 to complete the fixation, the single disassembly and assembly time is shortened to 1-2 minutes, and the efficiency is improved by 70%; at the same time, the regular hexahedron structure can transmit greater torque, which is improved by 20% compared with the key connection, avoiding the key groove wear problem prone to occur in the traditional key connection, ensuring that the cyclone impeller 5 does not slip relatively when rotating, and the transmission efficiency is stable above 95%.
[0048] Preferably, the elastic rod 8 includes a straight cylinder 81 fixedly installed on the central rod 7, the straight cylinder 81 is symmetrically provided with a sliding slot 82, a moving column 83 is slidably installed in the straight cylinder 81, the moving column 83 is integrally formed with a sliding block 84, the sliding block 84 is located in the sliding slot 82, a spring 85 is arranged between the moving column 83 and the straight cylinder 81, the spring 85 is located in the straight cylinder 81, and an adjusting nut 86 is threadedly connected to the outside of the straight cylinder 81.
[0049] In the embodiment, the straight cylinder 81 of the elastic rod 8 is made of stainless steel, one end of which is fixed with the center rod 7 by welding; the side wall of the straight cylinder 81 is symmetrically processed with a sliding groove 82 along the axis direction; the moving column 83 is a stainless steel column, one end of which extends into the straight cylinder 81, and the other end is connected with the scraper 9 by bolts or welding, the moving column 83 is integrally formed with a sliding block 84 outside the one end extending into the straight cylinder 81, the size of the sliding block 84 matches the sliding groove 82 and can freely slide along the sliding groove 82; the spring 85 is a cylindrical helical compression spring, which is sleeved on the part of the moving column 83 extending into the straight cylinder 81, one end of which abuts against the bottom of the straight cylinder 81, and the other end abuts against the stepped surface of the moving column 83; the outer surface of the straight cylinder 81 is processed with threads, the inner hole of the adjusting nut 86 is processed with corresponding threads, and the adjusting nut 86 is screwed on the end of the straight cylinder 81 close to the opening, the position of the adjusting nut 86 on the straight cylinder 81 can be adjusted by rotating, before the device enters the pipe, the adjusting nut 86 is rotated clockwise to move towards the bottom of the straight cylinder 81, push the moving column 83 to compress the spring 85, and shorten the overall length of the elastic rod 8, so that the device can smoothly enter the pipeline; after entering the pipe, the adjusting nut 86 is rotated counterclockwise to the appropriate position, the spring 85 is reset to push the moving column 83 to extend, and the scraper 9 is driven to adhere to the inner wall of the pipeline; during the operation process, if there is a local protrusion or depression on the inner wall of the pipeline, the spring 85 will automatically expand and contract, the extension amount of the moving column 83 is adjusted through the sliding of the sliding block 84 along the sliding groove 82, and the scraper 9 is always adhered to the pipe wall; the existing technology of the dredging scraper is mostly fixed by a rigid rod, which cannot adapt to the local protrusion or depression of the inner wall of the pipeline, and is easy to form a 10%-20% dredging blind area; the elastic rod 8 of the present scheme has the "elastic following" ability through the buffer of the spring 85 and the guidance of the sliding block 84, and the dredging coverage rate is improved to more than 98%; the adjusting nut 86 not only can prevent the moving column 83 from coming out of the straight cylinder 81, but also can fine-tune the extension amount of the scraper 9 according to the wear condition of the pipe wall, which is more practical than the traditional rigid rod, and the maintenance cost is reduced by 40%.
[0050] Preferably, the supporting rod 2 can be replaced by the elastic rod 8.
[0051] In the embodiment, the original length-adjustable support rod 2 outside the central column 1 is removed, and one end of the straight cylinder 81 of the elastic rod 8 is fixed at the installation position of the original support rod 2 outside the central column 1 through screwing or welding. The free end of the moving column 83 of the elastic rod 8 is bolted to the shell 31 of the moving mechanism 3 through a flange. According to the current inner diameter of the pipeline, the adjusting nut 86 of the elastic rod 8 is rotated to ensure that after the device enters the pipe, the moving column 83 is extended under the action of the spring 85, and the moving wheels 36 or track modules of the moving mechanism 3 are tightly attached to the inner wall of the pipeline. During operation, if there is a local diameter reduction or protrusion on the inner wall of the pipeline, the spring 85 of the elastic rod 8 will be compressed, driving the moving column 83 to retract along the sliding groove 82 of the straight cylinder 81, avoiding the moving mechanism 3 from being stuck. If the inner wall of the pipeline is locally expanded, the spring 85 will be elongated, pushing the moving column 83 to extend, ensuring that the moving mechanism 3 is always attached to the pipe wall. It should be noted that the resistance provided by the elastic rod 8 is elastic force. If the inner wall of the pipeline is too smooth or the water content of the silt is too high, the moving mechanism 3 may slip slightly. At this time, the moving wheels 36 can be replaced with anti-skid track modules to increase the grip force. The existing technology of rigid support rod adjustment has a fixed length after adjustment. When the pipeline has a local irregular diameter, the moving mechanism is easy to detach from the pipe wall, causing the moving mechanism to be unable to move, and manual frequent shutdown adjustment is required. The spring 85 of the elastic rod 8 in the scheme provides a buffer, allowing the moving mechanism 3 to have a "flexible attachment" capability, and it can adapt to the diameter fluctuation without manual intervention, especially suitable for complex working conditions of old pipe networks. Compared with the traditional rigid support rod that needs to be adjusted repeatedly, the maintenance frequency of the elastic rod 8 is reduced by 60%, which is more suitable for long-distance pipeline dredging.
[0052] Preferably, the moving mechanism 3 is a differential track drive unit, which includes at least two groups of track modules that can independently control the rotating speed. The rotating speed of each group of track modules is dynamically adjusted by a PID controller according to the pipeline turning angle.
[0053] In the embodiment, the wheeled structure of the original mobile mechanism 3 is replaced by a differential track driving unit, each driving unit comprising two sets of symmetrically arranged track modules, each set of track modules being driven by an independent DC servo motor, the servo motor being electrically connected with an STM32 series PID controller, the PID controller communicating with the first PLC control board 13 through a wireless module to receive pipeline turning information. During operation, the first PLC control board 13 calculates the speed difference of the track modules on both sides according to the pipeline turning type fed back by the image data acquisition head 32, such as a 90° right-angle bend or a 135° gentle bend. For example, when a 90° right-angle bend is encountered, the speed of the outer track module is controlled to be 0.5 m / s and the speed of the inner track module is controlled to be 0.2 m / s, and the turning torque generated by the speed difference drives the device to turn smoothly. The contact area of the track module with the inner wall of the pipeline is 3 times that of the traditional mobile wheel, and the grip force is increased by 80%. Even in the working condition of sand and small debris in the pipeline, the track can also avoid slipping. The wheeled mobile mechanism of the prior art is prone to side slip due to small contact area with the pipe wall and insufficient grip force, and the passing rate of a 90° right-angle bend is only about 60%. The differential track driving unit of the present scheme can achieve a turning accuracy of ±1° through precise adjustment of the independent servo motor and the PID controller, and the passing rate of a 90° right-angle bend is increased to 100%. At the same time, the wear-resistant rubber material of the track can adapt to sand and debris in the pipeline, avoiding the problem that the traditional mobile wheel 36 is easily stuck by debris, reducing the failure rate by 50%, and being more suitable for complex working conditions of pipeline dredging. It should be noted that ordinary mobile wheels also have the advantages of easy replacement and maintenance, and do not drag chains, so skilled technicians need to adapt according to the needs, and can move as needed.
[0054] Preferably, a one-way overrunning clutch is provided between the output shaft of the first motor 12 and the first bevel gear 15, which allows the rotating shaft 4 to rotate freely independently of the first motor 12 when the first motor 12 is not powered.
[0055] In the embodiment, a CK-A20 type one-way overrunning clutch is installed between the output shaft of the first motor 12 and the first bevel gear 15 through key connection. The driving end of the clutch is in interference fit with the output shaft of the first motor 12, the driven end is in interference fit with the shaft section of the first bevel gear 15, and the locking direction of the clutch is consistent with the direction in which the first motor 12 drives the rotating shaft 4. When the device is connected to power operation, the first motor 12 is powered to rotate, driving the driving end of the clutch to rotate clockwise, and the clutch is locked. The power is transmitted to the first bevel gear 15 through the driven end, the first bevel gear 15 meshes to drive the second bevel gear 16, and then drives the rotating shaft 4 to rotate clockwise, realizing active dredging. When the device is powered off or needs to save energy, the water flow in the pipeline impacts the rotating flow impeller 5, driving the rotating shaft 4 to rotate counterclockwise. The rotating shaft 4 drives the first bevel gear 15 to rotate counterclockwise through the second bevel gear 16. At this time, the rotation direction of the driven end of the clutch is opposite to the locking direction of the driving end, the clutch idles, and does not drive the output shaft of the first motor 12 to rotate. The rotating shaft 4 can rotate independently and freely. In the prior art, the motor and the rotating shaft are rigidly connected. After power off, the inertia of the motor rotor will hinder the rotation of the rotating shaft, and the water flow power cannot be utilized. Long-term passive rotation can easily cause the bearing inside the motor to wear. The one-way overrunning clutch of the present scheme realizes the function switching of "power driving and power following", and only relies on the water flow to drive the scraper 9 to dredge when there is no power. The power consumption of the first motor 12 is reduced by more than 50%. At the same time, the idle structure of the clutch avoids the wear of the passive rotation of the motor 12, and the service life of the motor is prolonged by 2 times.
[0056] Preferably, the first PLC control board 13 and the second PLC control board 34 are both integrated with a wireless communication module, and the two and the remote manual platform realize data interaction through wireless signals. The first power supply 14 and the second power supply 35 both include a hybrid energy supply unit, which is composed of a flexible solar film, a lithium battery pack and a micro hydro generator. The solar film is laid on the outer surface of the sealed box 11 and the housing 31, the micro hydro generator is installed on one side of the rotating flow impeller 5 and is driven by the water flow, and the lithium battery pack is electrically connected with the solar film and the micro hydro generator.
[0057] In the present embodiment, a waterproof wireless communication module of WiFi6 type is welded on the first PLC control board 13 and the second PLC control board 34 respectively, the antenna of the module is hidden inside the sealed box 11 and the shell 31, and a two-way data connection is established with a remote manual platform such as an industrial tablet through wireless signals, so as to realize real-time transmission of data such as in-pipe images, equipment rotating speed, and battery capacity, and issuing of instructions such as remote start and stop and rotating speed adjustment. In the hybrid energy supply unit, the flexible solar film is cut into a shape matching the outer surface of the sealed box 11 and the shell 31 and is fixed by IP68 level waterproof adhesive; the micro hydro generator is fixed on one side of the cyclone impeller 5 through a support, the impeller of the generator is parallel to the cyclone impeller 5 and can be synchronously impacted and rotated by the water flow in the pipeline; the output ends of the solar film and the micro hydro generator are connected with the lithium battery pack of the first power supply 14 and the second power supply 35 through an MPPT charging management module; when the lithium battery pack has less than 20% of the electric quantity, the charging management module automatically switches to the charging mode, and preferentially uses the solar film to charge, and when there is no light, the micro hydro generator is used. The existing dredging device has no remote control function, and needs to be operated manually near the pipeline wellhead, which not only has low safety, but also cannot grasp the in-pipe situation in real time. The wireless communication system of the present scheme realizes "remote monitoring-precise control", and the operator can work in a safe area within a range of 500 meters, and the risk is reduced by 80%. The traditional device is powered by a single lithium battery, and the endurance time is only 4-6 hours. The hybrid energy system of the present scheme prolongs the endurance time to 12-16 hours, and the device does not need to be frequently recovered to replace the battery, and the single operation range is expanded by 2 times.
[0058] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.
Claims
1. A pipe network renovation and expansion silt removal device that simultaneously dredges and dredges water, the entire device being waterproof, characterized in that: Includes a central column (1), three adjustable-length support rods (2) are equidistantly installed on the outer side of the central column (1), a moving mechanism (3) is fixedly installed at the end of the support rods (2), a rotating shaft (4) is installed inside the central column (1) through a bearing, a swirl impeller (5) is fixedly installed at the end of the rotating shaft (4), a ball joint head (6) is fixedly installed at the other end of the rotating shaft (4), a central rod (7) is fixedly installed at the other end of the ball joint head (6), a plurality of elastic rods (8) are equidistantly installed on the outer side of the central rod (7), a scraper (9) is installed at the end of the elastic rod (8), and a guide arc (10) is provided on the side of the scraper (9) away from the swirl impeller (5); A sealing box (11) is fixedly installed on the outside of the central column (1). The sealing box (11) integrates a first motor (12), a first PLC control board (13) and a first power supply (14). The output end of the first motor (12) is keyed to a first bevel gear (15). The first bevel gear (15) meshes with a second bevel gear (16). The second bevel gear (16) is fixedly installed on the rotating shaft (4).
2. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The support rod (2) includes a sleeve (21) fixedly connected to the outer surface of the central column (1). The sleeve (21) is rotatably mounted with a hexagonal nut (22). The hexagonal nut (22) is threadedly connected to a threaded rod (23). The moving mechanism (3) is installed at the end of the threaded rod (23).
3. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The moving mechanism (3) includes a housing (31) with a transparent periphery. Inside the housing (31) are an image data acquisition head (32), a second motor (33), a second PLC control board (34), and a second power supply (35). The output end of the second motor (33) is connected to a moving wheel (36), which is an anti-slip moving wheel.
4. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The swirl impeller (5) can be replaced with various diameter specifications. The swirl impeller (5) includes a baffle plate (51). The baffle plate (51) is evenly equipped with several baffle strips (52). The baffle strips (52) are arc-shaped. The swirl impeller (5) rotates when impacted by water flow.
5. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The end of the rotating shaft (4) on which the swirl impeller (5) is mounted is hexahedral. A hexagonal sleeve (53) is integrally formed on the central axis of the swirl impeller (5). The hexagonal sleeve (53) is fitted onto the end of the swirl impeller (5). The ends of the hexagonal sleeve (53) and the swirl impeller (5) are provided with locking holes (54) that correspond to each other.
6. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The elastic rod (8) includes a straight cylinder (81) fixedly installed on the central rod (7). The straight cylinder (81) has symmetrically opened grooves (82). A movable column (83) is slidably installed inside the straight cylinder (81). The movable column (83) has an integrally formed slider (84). The slider (84) is located in the groove (82). A spring (85) is provided between the movable column (83) and the straight cylinder (81). The spring (85) is located inside the straight cylinder (81). An adjusting nut (86) is threadedly connected to the outside of the straight cylinder (81).
7. The pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The strut (2) can be replaced by the elastic rod (8).
8. A pipeline renovation and expansion silt removal device according to claim 1, characterized in that: The moving mechanism (3) is a differential track drive unit, which includes at least two sets of track modules whose rotation speed can be controlled independently. The rotation speed of each set of track modules is dynamically adjusted by a PID controller according to the turning angle of the pipeline.
9. A pipeline renovation and expansion silt removal device according to claim 1, characterized in that: A one-way overrunning clutch is provided between the output shaft of the first motor (12) and the first bevel gear (15). When the first motor (12) has no power supply, the one-way overrunning clutch allows the rotating shaft (4) to rotate freely independently of the first motor (12).
10. A pipeline renovation and expansion silt removal device according to claim 3, characterized in that: The first PLC control board (13) and the second PLC control board (34) are both integrated with wireless communication modules, and the two and the remote artificial platform realize data interaction through wireless signals; the first power supply (14) and the second power supply (35) both include a hybrid energy supply unit, which is composed of a flexible solar film, a lithium battery pack and a micro hydro generator. The solar film is laid on the outer surface of the sealed box (11) and the shell (31), the micro hydro generator is installed on one side of the vortex impeller (5) and driven by water flow, and the lithium battery pack is electrically connected to the solar film and the micro hydro generator respectively.