Pipeline dredging device

Abstract

The invention discloses a pipeline dredging device, and relates to the technical field of pipeline dredging equipment.The pipeline dredging device comprises a forced drainage power station, a water suction pump and a centrifugal dehydrator, the forced drainage power station is connected with the water suction pump through a hydraulic oil pipe, and the water outlet end of the water suction pump is connected with a sludge conveying pipe; the dredging device further comprises a dredging unit, the dredging unit comprises a dredging mechanism and a plurality of propelling mechanisms, a front end plate is arranged on one sides of the propelling mechanisms, the dredging mechanism is mounted on the front end plate, a rear end plate is arranged at the ends, away from the dredging mechanism, of the propelling mechanisms, and the dredging mechanism is mounted on the rear end plate. The water suction pump is connected with the rear end plate through a support, the dredging mechanism is connected with a filtered water conveying pipe, the filtered water conveying pipe is communicated with the centrifugal dehydrator, and the forced drainage power station is installed on the engineering vehicle, so that movement of the forced drainage power station and decontamination of municipal pipelines are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dredging equipment, in particular to a pipeline dredging device. Background Art

[0002] At present, many sewage pipes in municipal projects will have a lot of impurities attached to the inner wall of the pipes after long-term use. In the rainy season or in an environment with a large amount of sediment discharge, sewage pipes are particularly prone to accumulation and blockage, and then pipe dredging devices are needed to perform regular maintenance on the pipes. At present, most of the pipe cleaning equipment is designed to be much smaller than the cross-sectional size of the pipe in order to achieve the characteristic of easy mobility. Therefore, in the process of dredging and removing silt, the shaking cleaning equipment often collides with the inner wall of the pipe, which is not only difficult to remove silt, but also more likely to damage the equipment and municipal sewage pipes, affecting the dredging effect. In the long run, the pipes are still often blocked, and more manpower and material resources are needed for basic maintenance. Summary of the invention

[0003] The purpose of the present invention is to provide a pipeline clearing device to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline dredging device, comprising a forced drainage power station, a water pump and a centrifugal dehydrator, wherein the forced drainage power station is connected to the water pump through a hydraulic oil pipe, the water outlet end of the water pump is connected to a sludge conveying pipe, and the sludge conveying pipe is connected to the centrifugal dehydrator, the dredging device also includes a dredging unit, the dredging unit includes a dredging mechanism and a plurality of propulsion mechanisms, a front end plate is arranged on one side of the plurality of propulsion mechanisms, the dredging mechanism is mounted on the front end plate, and a plurality of propulsion mechanisms are arranged on one end away from the dredging mechanism A rear end plate is arranged, the water pump is connected to the rear end plate through a bracket, a filtered water delivery pipe is connected to the dredging mechanism, the filtered water delivery pipe is communicated with the centrifugal dehydrator, the forced drainage power station provides working power for the water pump and the dredging unit, the water pump extracts the sludge in the underground pipeline and pumps it into the centrifugal dehydrator, the centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment, and the squeezed filtered water is delivered to the dredging mechanism through the filtered water delivery pipe, the impact of the filtered water on the sludge dilutes the sludge, which makes it convenient for the water pump to extract the diluted mud, and the filtered water is recycled.

[0005] Furthermore, the forced exhaust power station includes a control box, an oil circuit block, a water cooler, a hydraulic oil tank, an air cooler, an engine, a battery, a plunger pump, a diesel tank, a valve block, a speed regulating valve, a manual reversing valve, an oil tank and a pressure gauge, a filter element, etc. The plunger pump is connected to the water pump through a hydraulic oil pipe, and the forced exhaust power station is installed on an engineering vehicle through a support frame. By installing the forced exhaust power station on the engineering vehicle, the movement of the forced exhaust power station and the cleaning of municipal pipelines are facilitated.

[0006] Furthermore, several of the propulsion mechanisms are evenly distributed in a ring shape, and each of the propulsion mechanisms includes a chassis and a pair of side pillars, and the pair of side pillars are symmetrically installed on the chassis. The chassis and the side pillars are both hollow, and the side pillars are connected to the interior of the chassis. A servo motor is provided inside each of the chassis, and a driving sprocket is provided on the servo motor. A double reversing sprocket is rotatably installed at the position corresponding to the two side pillars inside the chassis, and the same driving chain is connected between the driving sprocket and the two double reversing sprockets. The operator first adjusts the position of the first support column and the second support column according to the diameter of the underground pipeline, and then tightens the fastening bolts to fix the position of the first support column and the second support column, so that the first support column or the second support column can support the inside of the pipeline when it moves to the extreme position, support the cleaning unit, and realize the propulsion function at the same time.

[0007] Furthermore, each of the side pillars is internally rotatably installed with an upper center sprocket and a lower center sprocket, and each of the double reversing sprockets is connected to the upper center sprocket and the lower center sprocket by a same transmission chain, and a first side sprocket and a second side sprocket are respectively provided on both sides of the upper center sprocket, and the first side sprocket and the second side sprocket are located on the outside of the side pillar, and the settings on both sides of the lower center sprocket are the same as the upper center sprocket, and the controller energizes the servo motor to drive the drive sprocket to rotate, and the drive sprocket drives the double reversing sprockets on both sides to rotate synchronously through the drive chain, and the two double reversing sprockets drive the upper center sprocket and the lower center sprocket to rotate through the transmission chain, and the first side sprocket and the second side sprocket rotate simultaneously therewith.

[0008] Furthermore, a first chain is arranged between the first side sprockets connected to the two upper center sprockets, a third chain is arranged between the second side sprockets connected to the two upper center sprockets, a second chain is arranged between the first side sprockets connected to the two lower center sprockets, and a fourth chain is arranged between the second side sprockets connected to the two lower center sprockets, and a first adapter block, a second adapter block, a third adapter block and a fourth adapter block are rotatably installed on the first chain, the second chain, the third chain and the fourth chain respectively, and all the first side sprockets and the second side sprockets have the same rotation direction, so the first chain, the second chain, the third chain and the fourth chain move in the same direction, the first adapter block and the second adapter block keep the anti-slip pad on the first support column always facing the inner wall of the pipe, and the third adapter block and the fourth adapter block keep the anti-slip pad on the second support column always facing the inner wall of the pipe.

[0009] Furthermore, the first adapter block, the second adapter block, the third adapter block and the fourth adapter block are all provided with a slide groove and a threaded hole, the threaded hole and the slide groove are vertically intersected, and each threaded hole is provided with a fastening bolt, the first adapter block and the second adapter block are slidably installed with a first support column, the third adapter block and the fourth adapter block are slidably installed with a second support column, the first support column is provided with a spring rod, the outer end of the spring rod is provided with an anti-slip pad, the structure and arrangement of the second support column are the same as the first support column, and when the first support column contacts the inner wall of the pipe, the other side The second support column does not contact the inner wall of the pipe. As the chain moves, the dredging unit is pushed forward as a whole. When the anti-skid pad on the second support column contacts the inner wall of the pipe, the anti-skid pad on the first support column gradually moves away from the inner wall of the pipe. The spring rod provides auxiliary support during the alternation of the first support column and the second support column, ensuring that at least one anti-skid pad can always rest against the inner wall of the pipe to ensure the smooth advancement of the dredging unit. All propulsion mechanisms work synchronously to smoothly advance the dredging unit along the pipe, realizing the functions of support and propulsion, and creating the premise for the work of the dredging mechanism.

[0010] Furthermore, the dredging mechanism includes a main motor, a sealing cover, a hollow sleeve, a mounting plate and a plurality of scrapers. A motor fixing frame is arranged between the several propulsion mechanisms. The main motor is mounted on the motor fixing frame. The motor shaft of the main motor passes through the front end plate. The sealing cover is mounted on the front end plate. The hollow sleeve is slidably mounted in the sealing cover. The mounting plate is mounted on the end of the hollow sleeve away from the front end plate. A plurality of scrapers are arranged on the mounting plate. The control system controls the main motor to drive the sun gear to rotate. The sun gear makes the planetary gear rotate. The planetary gear rotates while driving the hollow sleeve to rotate. The hollow sleeve drives the mounting plate to rotate at the same time. The scraper on the mounting plate rotates in the pipeline to scrape off the blocked silt by scraping the silt layer by layer.

[0011] Furthermore, a sun gear is installed on the motor shaft of the main motor, an inner gear ring is arranged inside the sealing cover, and a plurality of planetary gears are rotatably connected to one end of the hollow sleeve close to the front end plate, and each of the planetary gears is slidingly meshed with the sun gear and the inner gear ring respectively. A ball pair connector is eccentrically arranged at the end of the sun gear away from the main motor, and a ball pair connector is also eccentrically arranged inside the hollow sleeve. A connecting rod is connected between the two ball pair connectors. Since the rotation speed of the hollow sleeve is lower than that of the sun gear, the ball pair connector will be periodically staggered. Due to the restraining effect of the connecting rod, the hollow sleeve slides back and forth in the sealing cover, and the sealing cover drives the scraper on the mounting disk to repeatedly impact the sludge, so that the scraper can more easily scrape off the sludge blocked in the pipe while rotating, thereby achieving rapid unblocking of the blocked pipe.

[0012] Furthermore, a water filling chamber is provided between the sealing cover shell and the hollow sleeve, the filtered water delivery pipe is connected with the inside of the water filling chamber, a plurality of water outlet holes are opened on each of the scrapers, and all of the water outlet holes are connected with the water filling chamber. The filtered water is delivered into the water filling chamber through the filtered water delivery pipe, and then sprayed out of the scraper from the water outlet holes. The sprayed water impacts and dilutes the blocked sludge, so that the sludge is quickly dissolved. The dissolved sludge is sucked out by the water pump, and the centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment. The filtered water is recycled to assist in dissolving the sludge, thereby achieving the purpose of quickly unblocking the blocked pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By installing the forced drainage power station on the engineering vehicle, the movement of the forced drainage power station and the cleaning of municipal pipelines are facilitated; by controlling the propulsion mechanism to work synchronously, the cleaning unit is smoothly pushed along the pipeline to achieve the support and propulsion functions, creating the premise for the work of the dredging mechanism; through the speed difference between the hollow sleeve and the sun gear, the hollow sleeve slides back and forth in the sealing cover, and the sealing cover drives the scraper on the mounting plate to repeatedly impact the sludge, so that the scraper can more easily scrape off the sludge blocked in the pipeline while rotating, thereby achieving rapid dredging of the blocked pipeline; by opening a water outlet hole on the scraper, the sprayed water impacts and dilutes the blocked sludge, so that the sludge is quickly dissolved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the cleaning unit of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the cleaning unit of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 3 The structure of the strong exhaust power station of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 4 The structure of the strong exhaust power station of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 5 It is a schematic diagram of the disassembled structure of the dredging unit of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the propulsion mechanism of the present invention.

[0021] Figure 7 The internal structure of the desilting mechanism of the present invention is shown in FIG. Figure 1 .

[0022] Figure 8The internal structure of the desilting mechanism of the present invention is shown in FIG. Figure 2 .

[0023] In the figure: 1, water pump; 2, sludge conveying pipe; 3, rear end plate; 4, front end plate; 5, motor fixing frame; 6, main motor; 7, propulsion mechanism; 8, sun gear; 9, planetary gear; 10, sealing cover; 11, inner ring gear; 12, water filling chamber; 13, hollow sleeve; 14, connecting rod; 15, filtered water conveying pipe; 16, mounting plate; 17, scraper; 18, chassis; 19, servo motor; 20, driving sprocket; 21, driving chain; 22, double reversing sprocket; 23, side support; 24, transmission chain; 25, upper center sprocket; 26, lower center chain wheel; 27, first side sprocket; 28, second side sprocket; 29, first chain; 30, second chain; 31, third chain; 32, fourth chain; 33, first adapter block; 34, second adapter block; 35, third adapter block; 36, fourth adapter block; 37, fastening bolts; 38, first support column; 39, spring rod; 40, anti-skid pad; 41, control box; 42, oil block; 43, water cooler; 45, hydraulic oil tank; 46, air cooler; 47, engine; 48, battery; 49, plunger pump; 50, diesel tank; 51, hydraulic oil pipe; 52, second support column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example: Figure 1-Figure 8As shown, the present invention provides a technical solution, a pipeline dredging device, including a forced drainage power station, a water pump 1 and a centrifugal dehydrator (not shown in the figure), the forced drainage power station is connected to the water pump 1 through a hydraulic oil pipe 51, the water outlet end of the water pump 1 is connected to a sludge conveying pipe 2, and the sludge conveying pipe 2 is connected to the centrifugal dehydrator, the dredging device also includes a dredging unit, the dredging unit includes a dredging mechanism and four propulsion mechanisms 7, a front end plate 4 is provided on one side of the four propulsion mechanisms 7, the dredging mechanism is installed on the front end plate 4, and a rear end plate 3 is provided at one end of the four propulsion mechanisms 7 away from the dredging mechanism, the water pump 1 is connected to the rear end plate 3 through a bracket, the dredging mechanism is connected to a filtered water conveying pipe 15, and the filtered water conveying pipe 15 is connected to the centrifugal dehydrator, the forced drainage power station includes a control box 41, an oil block 42, a water cooler 43, a hydraulic Fuel tank 45, air cooler 46, engine 47, battery 48, plunger pump 49, diesel tank 50, valve block, speed regulating valve, manual reversing valve, fuel tank and pressure gauge, filter element, etc. The plunger pump 49 is connected to the water pump 1 through a hydraulic oil pipe 51. The forced drainage power station is installed on the engineering vehicle through a support frame. The forced drainage power station provides working power for the water pump 1 and the dredging unit. The water pump 1 extracts the sludge in the underground pipeline and pumps it into the centrifugal dehydrator. The centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment. The squeezed filtered water is sent to the dredging mechanism through the filtered water delivery pipe 15. The impact of the filtered water on the sludge dilutes the sludge, which makes it convenient for the water pump 1 to extract the diluted mud, and the filtered water is recycled. By installing the forced drainage power station on the engineering vehicle, the movement of the forced drainage power station and the cleaning of the municipal pipeline are convenient.

[0026] The four propulsion mechanisms 7 are evenly distributed in a ring shape, and each propulsion mechanism 7 includes a chassis 18 and a pair of side pillars 23, and the pair of side pillars 23 are symmetrically mounted on the chassis 18. The chassis 18 and the side pillars 23 are both hollow, and the side pillars 23 are connected to the inside of the chassis 18. A servo motor 19 is arranged inside each chassis 18, and a driving sprocket 20 is arranged on the servo motor 19. A double-linked reversing sprocket 22 is rotatably mounted at the position corresponding to the two side pillars 23 inside the chassis 18, and the driving sprocket 20 is connected to the two double-linked reversing sprockets. The same driving chain 21 is connected between the wheels 22, and an upper center sprocket 25 and a lower center sprocket 26 are rotatably installed inside each side pillar 23. Each double reversing sprocket 22 is connected to the upper center sprocket 25 and the lower center sprocket 26 by the same transmission chain 24. A first side sprocket 27 and a second side sprocket 28 are respectively arranged on both sides of the upper center sprocket 25. The first side sprocket 27 and the second side sprocket 28 are located on the outside of the side pillar 23, and the settings on both sides of the lower center sprocket 26 are the same as those of the upper center sprocket 25.

[0027] The operator first adjusts the position of the first support column 38 and the second support column 52 according to the diameter of the underground pipeline, and then tightens the fastening bolts 37 to fix the position of the first support column 38 and the second support column 52, so that the first support column 38 or the second support column 52 can support the inside of the pipeline when moving to the extreme position, support the cleaning unit, and realize the propulsion function at the same time. The controller energizes the servo motor 19 to drive the drive sprocket 20 to rotate. The drive sprocket 20 drives the double reversing sprockets 22 on both sides to rotate synchronously through the drive chain 21. The two double reversing sprockets 22 drive the upper center sprocket 25 and the lower center sprocket 26 to rotate through the transmission chain 24, and the first side sprocket 27 and the second side sprocket 28 rotate simultaneously.

[0028] A first chain 29 is provided between the first side sprockets 27 connected to the two upper center sprockets 25, a third chain 31 is provided between the second side sprockets 28 connected to the two upper center sprockets 25, a second chain 30 is provided between the first side sprockets 27 connected to the two lower center sprockets 26, and a fourth chain 32 is provided between the second side sprockets 28 connected to the two lower center sprockets 26. The first chain 29, the second chain 30, the third chain 31 and the fourth chain 32 are rotatably mounted with a first transfer block 33, a second transfer block 34, a third transfer block 35 and a fourth transfer block 36 respectively. Four adapter blocks 36, the first adapter block 33, the second adapter block 34, the third adapter block 35 and the fourth adapter block 36 are all provided with sliding grooves and threaded holes, the threaded holes are perpendicular to the sliding grooves, and each threaded hole is provided with a fastening bolt 37, the first adapter block 33 and the second adapter block 34 are slidably installed with a first support column 38, the third adapter block 35 and the fourth adapter block 36 are slidably installed with a second support column 52, the first support column 38 is provided with a spring rod 39, and the outer end of the spring rod 39 is provided with an anti-slip pad 40, and the structure and arrangement of the second support column 52 are the same as those of the first support column 38.

[0029] All the first side sprockets 27 and the second side sprockets 28 have the same direction of rotation, so the first chain 29, the second chain 30, the third chain 31 and the fourth chain 32 move in the same direction, the first adapter block 33 and the second adapter block 34 keep the anti-skid pad 40 on the first support column 38 always facing the inner wall of the pipe, and the third adapter block 35 and the fourth adapter block 36 keep the anti-skid pad 40 on the second support column 52 always facing the inner wall of the pipe. When the first support column 38 contacts the inner wall of the pipe, the second support column 52 on the other side does not contact the inner wall of the pipe. As the chain moves The dredging unit is pushed forward as a whole. When the anti-skid pad 40 on the second support column 52 contacts the inner wall of the pipe, the anti-skid pad 40 on the first support column 38 gradually moves away from the inner wall of the pipe. The spring rod 39 provides auxiliary support during the alternation between the first support column 38 and the second support column 52, ensuring that at least one anti-skid pad 40 can always rest against the inner wall of the pipe to ensure the smooth advancement of the dredging unit. All the propulsion mechanisms 7 work synchronously to smoothly advance the dredging unit along the pipe, realizing the functions of support and propulsion, and creating the premise for the work of the dredging mechanism.

[0030] The desilting mechanism includes a main motor 6, a sealing cover 10, a hollow sleeve 13, a mounting plate 16 and a plurality of scrapers 17. A motor fixing frame 5 is arranged between the four propulsion mechanisms 7. The main motor 6 is mounted on the motor fixing frame 5. The motor shaft of the main motor 6 passes through the front end plate 4. The sealing cover 10 is mounted on the front end plate 4. The hollow sleeve 13 is slidably mounted in the sealing cover 10. The mounting plate 16 is mounted on the end of the hollow sleeve 13 away from the front end plate 4. A plurality of scrapers 17 are arranged on the mounting plate 16. A sun gear 8 is mounted on the motor shaft of the main motor 6. An inner gear ring 11 is arranged inside the sealing cover 10. The end of the hollow sleeve 13 close to the front end plate 4 is rotatably connected with three planetary gears 9, each planetary gear 9 is respectively slidingly meshed with the sun gear 8 and the inner ring gear 11, and the end of the sun gear 8 away from the main motor 6 is eccentrically provided with a ball pair connector, and the interior of the hollow sleeve 13 is also eccentrically provided with a ball pair connector, and a connecting rod 14 is connected between the two ball pair connectors. A water filling chamber 12 is provided between the sealing cover 10 and the hollow sleeve 13, and the filtered water delivery pipe 15 is connected to the inside of the water filling chamber 12, and each scraper 17 is provided with a plurality of water outlet holes, and all the water outlet holes are connected to the water filling chamber 12.

[0031] The control system controls the main motor 6 to drive the sun gear 8 to rotate, and the sun gear 8 makes the planetary gear 9 rotate. The planetary gear 9 rotates while driving the hollow sleeve 13 to rotate. The hollow sleeve 13 drives the mounting plate 16 to rotate at the same time. The scraper 17 on the mounting plate 16 rotates in the pipeline to scrape off the blocked sludge by scraping mud layer by layer. Since the speed of the hollow sleeve 13 is lower than the speed of the sun gear 8, the ball pair connection will be periodically staggered. Due to the restraining effect of the connecting rod 14, the hollow sleeve 13 slides back and forth in the sealing cover 10, and the sealing cover 10 is The scraper blade 17 on the movable mounting plate 16 repeatedly impacts the sludge, so that the scraper blade 17 can more easily scrape off the sludge blocked in the pipe while rotating, so as to achieve rapid unblocking of the blocked pipe. The filtered water is sent into the water filling chamber 12 through the filtered water delivery pipe 15, and then sprayed out of the scraper blade 17 from the water outlet. The sprayed water impacts and dilutes the blocked sludge, so that the sludge is quickly dissolved. The dissolved sludge is sucked out by the water pump 1, and the centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment. The filtered water is recycled to assist in dissolving the sludge, so as to achieve the purpose of quickly unblocking the blocked pipe.

[0032] The working principle of the present invention is as follows: the forced drainage power station provides working power for the water pump 1 and the dredging unit. The water pump 1 extracts the sludge in the underground pipeline and pumps it into the centrifugal dehydrator. The centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment. The squeezed filtered water is then sent to the dredging mechanism through the filtered water delivery pipe 15. The impact of the filtered water on the sludge dilutes the sludge, making it easier for the water pump 1 to extract the diluted mud, and the filtered water is recycled. By installing the forced drainage power station on an engineering vehicle, the movement of the forced drainage power station and the cleaning of municipal pipelines are facilitated.

[0033] The operator first adjusts the position of the first support column 38 and the second support column 52 according to the diameter of the underground pipeline, and then tightens the fastening bolts 37 to fix the position of the first support column 38 and the second support column 52, so that the first support column 38 or the second support column 52 can support the inside of the pipeline when moving to the extreme position, support the cleaning unit, and realize the propulsion function at the same time. The controller energizes the servo motor 19 to drive the drive sprocket 20 to rotate. The drive sprocket 20 drives the double reversing sprockets 22 on both sides to rotate synchronously through the drive chain 21. The two double reversing sprockets 22 drive the upper center sprocket 25 and the lower center sprocket 26 to rotate through the transmission chain 24, and the first side sprocket 27 and the second side sprocket 28 rotate simultaneously.

[0034] All the first side sprockets 27 and the second side sprockets 28 have the same direction of rotation, so the first chain 29, the second chain 30, the third chain 31 and the fourth chain 32 move in the same direction, the first adapter block 33 and the second adapter block 34 keep the anti-skid pad 40 on the first support column 38 always facing the inner wall of the pipe, and the third adapter block 35 and the fourth adapter block 36 keep the anti-skid pad 40 on the second support column 52 always facing the inner wall of the pipe. When the first support column 38 contacts the inner wall of the pipe, the second support column 52 on the other side does not contact the inner wall of the pipe. As the chain moves The dredging unit is pushed forward as a whole. When the anti-skid pad 40 on the second support column 52 contacts the inner wall of the pipe, the anti-skid pad 40 on the first support column 38 gradually moves away from the inner wall of the pipe. The spring rod 39 provides auxiliary support during the alternation between the first support column 38 and the second support column 52, ensuring that at least one anti-skid pad 40 can always rest against the inner wall of the pipe to ensure the smooth advancement of the dredging unit. All the propulsion mechanisms 7 work synchronously to smoothly advance the dredging unit along the pipe, realizing the functions of support and propulsion, and creating the premise for the work of the dredging mechanism.

[0035] The control system controls the main motor 6 to drive the sun gear 8 to rotate, and the sun gear 8 makes the planetary gear 9 rotate. The planetary gear 9 rotates while driving the hollow sleeve 13 to rotate. The hollow sleeve 13 drives the mounting plate 16 to rotate at the same time. The scraper 17 on the mounting plate 16 rotates in the pipeline to scrape off the blocked sludge by scraping mud layer by layer. Since the speed of the hollow sleeve 13 is lower than the speed of the sun gear 8, the ball pair connection will be periodically staggered. Due to the restraining effect of the connecting rod 14, the hollow sleeve 13 slides back and forth in the sealing cover 10, and the sealing cover 10 is The scraper blade 17 on the movable mounting plate 16 repeatedly impacts the sludge, so that the scraper blade 17 can more easily scrape off the sludge blocked in the pipe while rotating, so as to achieve rapid unblocking of the blocked pipe. The filtered water is sent into the water filling chamber 12 through the filtered water delivery pipe 15, and then sprayed out of the scraper blade 17 from the water outlet. The sprayed water impacts and dilutes the blocked sludge, so that the sludge is quickly dissolved. The dissolved sludge is sucked out by the water pump 1, and the centrifugal dehydrator squeezes out the water in the sludge and discharges the sediment. The filtered water is recycled to assist in dissolving the sludge, so as to achieve the purpose of quickly unblocking the blocked pipe.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A pipeline dredging device, comprising a forced drainage power station, a water pump (1) and a centrifugal dehydrator, wherein the forced drainage power station is connected to the water pump (1) through a hydraulic oil pipe (51), the water outlet of the water pump (1) is connected to a sludge conveying pipe (2), and the sludge conveying pipe (2) is connected to the centrifugal dehydrator, characterized in that: The dredging device also includes a dredging unit, which includes a dredging mechanism and a plurality of propulsion mechanisms (7). A front end plate (4) is provided on one side of the plurality of propulsion mechanisms (7), and the dredging mechanism is mounted on the front end plate (4). A rear end plate (3) is provided on one end of the plurality of propulsion mechanisms (7) away from the dredging mechanism. The water pump (1) is connected to the rear end plate (3) via a bracket. A filtered water delivery pipe (15) is connected to the dredging mechanism, and the filtered water delivery pipe (15) is connected to the centrifugal dehydrator.

2. A pipeline dredging device according to claim 1, wherein the forced drainage power station comprises a control box (41), an oil block (42), a water cooler (43), a hydraulic oil tank (45), an air cooler (46), an engine (47), a battery (48), a plunger pump (49) and a diesel tank (50), wherein the plunger pump (49) is connected to the water pump (1) through a hydraulic oil pipe (51), and is characterized in that: The strong exhaust power station is installed on the engineering vehicle through a support frame.

3. A pipeline cleaning device according to claim 1, characterized in that: A plurality of the propulsion mechanisms (7) are evenly distributed in a ring shape, each of the propulsion mechanisms (7) comprises a chassis (18) and a pair of side pillars (23), the pair of side pillars (23) being symmetrically mounted on the chassis (18), the chassis (18) and the side pillars (23) being both hollow, the side pillars (23) being connected to the interior of the chassis (18), a servo motor (19) being arranged inside each of the chassis (18), a driving sprocket (20) being arranged on the servo motor (19), a double-linked reversing sprocket (22) being rotatably mounted at positions corresponding to the two side pillars (23) inside the chassis (18), and a same driving chain (21) being connected between the driving sprocket (20) and the two double-linked reversing sprockets (22).

4. A pipeline clearing device according to claim 3, characterized in that: An upper center sprocket (25) and a lower center sprocket (26) are rotatably mounted inside each of the side pillars (23); each of the double reversing sprockets (22) is connected to the upper center sprocket (25) and the lower center sprocket (26) by a same transmission chain (24); a first side sprocket (27) and a second side sprocket (28) are respectively arranged on both sides of the upper center sprocket (25); the first side sprocket (27) and the second side sprocket (28) are located on the outside of the side pillars (23); and the arrangement on both sides of the lower center sprocket (26) is the same as that of the upper center sprocket (25).

5. A pipeline clearing device according to claim 4, characterized in that: A first chain (29) is arranged between the first side sprockets (27) connected to the two upper center sprockets (25), a third chain (31) is arranged between the second side sprockets (28) connected to the two upper center sprockets (25), a second chain (30) is arranged between the first side sprockets (27) connected to the two lower center sprockets (26), and a fourth chain (32) is arranged between the second side sprockets (28) connected to the two lower center sprockets (26); a first transfer block (33), a second transfer block (34), a third transfer block (35) and a fourth transfer block (36) are rotatably mounted on the first chain (29), the second chain (30), the third chain (31) and the fourth chain (32), respectively.

6. A pipeline clearing device according to claim 5, characterized in that: The first adapter block (33), the second adapter block (34), the third adapter block (35) and the fourth adapter block (36) are all provided with a slide groove and a threaded hole, the threaded hole and the slide groove are vertically intersected, and each threaded hole is provided with a fastening bolt (37), the first adapter block (33) and the second adapter block (34) are slidably installed with a first support column (38), the third adapter block (35) and the fourth adapter block (36) are slidably installed with a second support column (52), the first support column (38) is provided with a spring rod (39), and the outer end of the spring rod (39) is provided with an anti-slip pad (40), and the structure and arrangement of the second support column (52) are the same as those of the first support column (38).

7. A pipeline clearing device according to claim 1, characterized in that: The dredging mechanism comprises a main motor (6), a sealing cover (10), a hollow sleeve (13), a mounting plate (16) and a plurality of scrapers (17); a motor fixing frame (5) is arranged between the plurality of propulsion mechanisms (7); the main motor (6) is mounted on the motor fixing frame (5); a motor shaft of the main motor (6) passes through the front end plate (4); the sealing cover (10) is mounted on the front end plate (4); the hollow sleeve (13) is slidably mounted in the sealing cover (10); the mounting plate (16) is mounted on an end of the hollow sleeve (13) away from the front end plate (4); and a plurality of scrapers (17) are arranged on the mounting plate (16).

8. A pipeline clearing device according to claim 7, characterized in that: A sun gear (8) is mounted on the motor shaft of the main motor (6), an inner gear ring (11) is arranged inside the sealing housing (10), and a plurality of planetary gears (9) are rotatably connected to one end of the hollow sleeve (13) close to the front end plate (4), and each of the planetary gears (9) is respectively slidably meshed with the sun gear (8) and the inner gear ring (11), and a ball pair connector is eccentrically arranged at one end of the sun gear (8) away from the main motor (6), and a ball pair connector is also eccentrically arranged inside the hollow sleeve (13), and a connecting rod (14) is connected between the two ball pair connectors.

9. A pipeline clearing device according to claim 8, characterized in that: A water-filled chamber (12) is provided between the sealing housing (10) and the hollow sleeve (13); the filtered water delivery pipe (15) is connected to the interior of the water-filled chamber (12); each of the scrapers (17) is provided with a plurality of water outlet holes, and all of the water outlet holes are connected to the water-filled chamber (12).

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