Dredging device for water supply and drainage pipeline

Abstract

The invention belongs to the technical field of pipeline desilting equipment, and particularly relates to a water supply and drainage pipeline desilting device which comprises a desilting vehicle, the outer side of a mud pumping pipe of the desilting vehicle is sleeved with an annular plugging sleeve used for being in butt joint with a drainage port, and the portion, located outside the inner end of a drainage pipe, of the annular plugging sleeve is sleeved with a telescopic air bag. The annular plugging sleeve is provided with an air guide pipe used for injecting air into the telescopic air bag, the extending end of the telescopic air bag is provided with a connecting sleeve, the connecting sleeve is provided with a slag scraping cover used for removing clogging objects in the drainage pipe, the slag scraping cover is communicated with a mud pumping pipe of a dredging vehicle, and spiral cutter plates used for crushing are evenly arranged in the slag scraping cover. Auxiliary wheels are uniformly arranged on the outer side of the slag scraping cover, and a driving mechanism for driving the slag scraping cover to rotate is arranged on one side of the connecting sleeve; through cooperation of the structure and utilization of contractibility of gas, damage caused by too large extrusion force between the slag scraping cover and the spiral cutter plate and solid clogging objects due to too large push and pull is avoided, and the service life of the desilting device is prolonged.

Description

Technical Field

[0001] This invention belongs to the technical field of pipeline dredging equipment, specifically a dredging device for water supply and drainage pipelines. Background Technology

[0002] Municipal drainage systems are prone to blockages due to rainwater carrying debris and dust, which accumulate over time. Long tree roots and other debris can also trap within the pipes, leading to urban flooding. Currently, specialized dredging vehicles are commonly used for cleaning drainage pipes. These vehicles typically employ a pipe-mounted trolley carrying a breaker drill bit to break up and clear blockages in the drainage pipes. Simultaneously, a high-pressure water gun or air gun is used to flush away the broken-up blockages during the breaking-up process.

[0003] However, the above technologies often have the following drawbacks: for example, the force of the existing pipeline trolley pushing the breaker bit is constant and cannot be automatically and dynamically changed according to the hardness of the blockage. As a result, when encountering harder blockages, the wear rate of the breaker bit is increased. At the same time, during the process of directly impacting and clearing the broken blockages, harder blockages will collide with the drainage pipe, which can easily damage the strength of the drainage pipe.

[0004] Therefore, the present invention provides a dredging device for water supply and drainage pipelines. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a dredging device for water supply and drainage pipelines, including a dredging vehicle. The outer side of the dredging vehicle's sludge suction pipe is fitted with an annular sealing sleeve for connecting to the drainage port. The annular sealing sleeve is fitted with a telescopic air bladder outside the inner end of the drainage pipe. The annular sealing sleeve is provided with an air guide pipe for injecting air into the telescopic air bladder. The extension end of the telescopic air bladder is provided with a connecting sleeve. The connecting sleeve is provided with a scraper cover for removing sludge from the drainage pipe. The scraper cover is connected to the sludge suction pipe of the dredging vehicle. Spiral blades for crushing are evenly arranged inside the scraper cover. Auxiliary wheels are evenly arranged on the outer side of the scraper cover. A drive mechanism for driving the scraper cover to rotate is provided on one side of the connecting sleeve.

[0007] Furthermore, the connecting sleeve is provided with a crushing cone that forms a jaw crushing cross section with the slag scraper.

[0008] Furthermore, the spiral blade consists of a crushing end located at the slag inlet of the slag scraper and a transport section located inside the slag scraper.

[0009] Further, the outer side of the ring-shaped plugging sleeve is uniformly provided with mounting grooves, pneumatic jacks are slidingly arranged in the mounting grooves, and a gas conveying channel for connecting the gas guide pipe and the mounting grooves is arranged in the ring-shaped plugging sleeve.

[0010] Further, the ring-shaped plugging sleeve is inlaid with a sealing rubber pad on the side close to the drainage port.

[0011] Further, the included angle between the axial line of the auxiliary wheel and the axial line of the slag scraping cover is 30-60 degrees.

[0012] Further, the driving mechanism comprises a mounting seat, one side of the mounting seat is hingedly fixed with the connecting sleeve, a quick fixing piece is arranged on the side of the mounting seat away from the connecting sleeve, a worm for driving the slag scraping cover to rotate is rotatably arranged in the mounting seat, and a driving motor connected with the worm is arranged at one end of the mounting seat.

[0013] Further, the quick fixing piece comprises a U-shaped pressing piece, the U-shaped pressing piece is arranged on the side of the mounting seat away from the connecting sleeve, a threaded column matched with the U-shaped pressing piece is arranged on the outer side of the connecting sleeve, and a locking nut for fixing the U-shaped pressing piece is arranged on the outer side of the threaded column.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The drainage pipeline dredging device disclosed by the present application, when the telescopic air bag is inflated and expanded, a pushing force is generated, the slag scraping cover gradually moves forward along with the expansion of the telescopic air bag, the slag scraping cover rotates to remove the blockage in the drainage pipe, the telescopic air bag is used to buffer the solid impurities collected in the drainage pipe, and the solid impurities are prevented from impacting and damaging the inner wall of the drainage pipe during the process of being transported out of the drainage pipe.

[0016] 2. The drainage pipeline dredging device disclosed by the present application, the spiral blade is used to shovel and collect the solid impurities in the drainage pipe, and the telescopic air bag is used to buffer the solid impurities collected in the drainage pipe, so that the solid impurities are prevented from impacting and damaging the inner wall of the drainage pipe during the process of being transported out of the drainage pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings.

[0018] Figure 1 is the front view of the present application;

[0019] Figure 2 is the partial perspective view of the present application;

[0020] Figure 3 is the partial top view of the present application;

[0021] Figure 4 isFigure 3 Cross-sectional view at A-A;

[0022] Figure 5 is Figure 3 Cross-sectional view at B-B;

[0023] Figure 6 is the schematic diagram of the auxiliary wheel axis and the slagging cover axis angle in the application;

[0024] Figure 7 is Figure 4 Local enlarged view at C;

[0025] Figure 8 is Figure 4 Local enlarged view at D.

[0026] In the figure: 1, dredging vehicle; 2, ring type blocking sleeve; 3, telescopic air bag; 4, air guide pipe; 5, connecting sleeve; 6, slagging cover; 7, spiral blade; 8, driving mechanism; 9, crushing cone; 10, pneumatic jacking block; 11, auxiliary wheel; 12, sealing rubber pad; 20, mounting groove; 21, gas conveying channel; 80, mounting seat; 81, quick fixing part; 82, worm; 83, driving motor; 810, U-shaped tablet; 811, threaded column; 812, locking nut. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0028] Embodiment one: as shown in the figure, the dredging device for water supply and drainage pipeline according to the embodiment of the application. Figure 1 to Figure 6

[0029] As shown in the figure, the dredging device for water supply and drainage pipeline according to the embodiment of the application. Figure 1 and Figure 2 ​As shown, the outer side of the suction pipe of the dredging vehicle 1 is sleeved with a ring-shaped sealing sleeve 2 for docking the drainage port to be dredged, and the ring-shaped sealing sleeve 2 is externally sleeved with a telescopic air bag 3 at the inner end of the drainage pipe, the extension end of the telescopic air bag 3 is fixedly connected with a connecting sleeve 5, and a gas guide pipe 4 for injecting air into the telescopic air bag 3 is embedded on the ring-shaped sealing sleeve 2, and uniform installation grooves 20 are formed on the outer side of the ring-shaped sealing sleeve 2, a pneumatic jack 10 is slidably arranged in the installation groove 20, and a gas conveying channel 21 for connecting the gas guide pipe 4 and the installation groove 20 is formed in the ring-shaped sealing sleeve 2. By sealing the drainage pipe port through the ring-shaped sealing sleeve 2, the odor leakage of the drainage pipe during the dredging process is avoided to pollute the air. By injecting air into the gas guide pipe 4 through the air injection pump of the dredging vehicle 1, compressed air enters the installation groove 20 through the gas conveying channel 21, so that the outer end of the pneumatic jack 10 protrudes out of the installation groove 20 to extrude the inner wall of the drainage pipe, so that the ring-shaped sealing sleeve 2 is fixed at the port of the drainage pipe. At the same time, the compressed air is injected into the telescopic air bag 3 to expand, so that the telescopic air bag 3 pushes the connecting sleeve 5 to move along the direction of the drainage pipe.

[0030] A slag scraping cover 6 for removing the blockage in the drainage pipe is arranged on the connecting sleeve 5, and spiral knife plates 7 for crushing are uniformly arranged in the slag scraping cover 6, and the connecting sleeve 5 is connected with the suction pipe of the dredging vehicle 1 on the side away from the telescopic air bag 3, so that the inner cavity of the slag scraping cover 6 is communicated with the suction pipe of the dredging vehicle 1.

[0031] As shown in Figure 1 and Figure 2 , the outer side of the slag scraping cover 6 is uniformly provided with auxiliary wheels 11, so that the slag scraping cover 6 is radially supported and the axial stability of the slag scraping cover 6 is maintained.

[0032] A driving mechanism 8 for driving the rotation of the slag scraping cover 6 is arranged on one side of the connecting sleeve 5, so that the slag scraping cover 6 can rotate along the inner wall of the drainage pipe, and the blockage attached to the inner wall of the drainage pipe is scraped off, and the scraped blockage is transported into the connecting pipe 5 by the spiral knife plates 7, and finally collected into the sludge storage tank by the suction pipe of the dredging vehicle 1, avoiding the secondary blockage of the drainage pipe caused by high-pressure water flushing.

[0033] As shown in Figure 2 , a crushing cone 9 is arranged in the connecting sleeve 5 to form a jaw crusher section with the slag scraping cover 6, and the large solid blockage collected into the slag scraping cover 6 is crushed by the twisting force between the crushing cone 9 and the spiral knife plate 7.

[0034] As shown in Figure 2 , the spiral knife plate 7 has a crushing end part at the slag inlet of the slag scraping cover 6 and a conveying part at the inner side of the slag scraping cover 6, so that the crushing end part of the spiral knife plate 7 can scrape and crush the blockage, and the crushed blockage is conveyed by the conveying part.

[0035] As Figure 3 shown, in the implementation process, since the inspection well is a cylindrical structure, the ring-shaped blocking sleeve 2 cannot be tightly fitted with the drainage pipe port, and the ring-shaped blocking sleeve 2 is inlaid with a sealing rubber pad 12 on the side close to the drainage port.

[0036] As Figure 6 shown, the included angle α between the axial line of the auxiliary wheel 11 and the axial line of the slag scraping cover 6 is 30-60 degrees, so that the auxiliary wheel 11 rotates with the slag scraping cover 6, and the slag scraping cover 6 spirally advances along the drainage pipe under the guidance of the auxiliary wheel 11, and the inclined support provides better guidance and stability for the slag scraping cover 6, improving the adaptability of the slag scraping cover 6 in a complex drainage pipe environment.

[0037] Example two: as Figure 4 to Figure 8 shown, compared with example one, another embodiment of the present application is:

[0038] As Figure 2 , Figure 3 and Figure 5 shown, the driving mechanism 8 includes a mounting seat 80, one side of the mounting seat 80 is hingedly fixed with the connecting sleeve 5, and the side of the mounting seat 80 away from the connecting sleeve 5 is provided with a quick fixing piece 81, a worm 82 for driving the slag scraping cover 6 to rotate is rotatably arranged in the mounting seat 80, and one end of the mounting seat 80 is provided with a driving motor 83 connected with the worm 82, the worm 82 can be quickly connected and disconnected with the slag scraping cover 6 through the quick fixing piece 81, so as to facilitate quick replacement of the slag scraping cover 6 according to the pipe diameter of the to-be-dredged drainage pipe, the rotation of the worm 82 is driven by the driving motor 83, so that the worm 82 drives the slag scraping cover 6 to rotate, and then the driving motor 83 drives the worm 82 to rotate at high speed, so that the slag scraping cover 6 has a large rotary torque.

[0039] As Figure 3 and Figure 8 shown, the quick fixing piece 81 includes a U-shaped pressing piece 810, the U-shaped pressing piece 810 is arranged on the side of the mounting seat 80 away from the connecting sleeve 5, the outer side of the connecting sleeve 5 is provided with a threaded column 811 matched with the U-shaped pressing piece 810, and the outer side of the threaded column 811 is provided with a locking nut 812 for fixing the U-shaped pressing piece 810, by screwing the locking nut 812, the locking nut 812 tightly abuts the U-shaped pressing piece 810 against the connecting sleeve 5, so that the mounting seat 80 is fixed and the worm 82 is engaged with the groove on the slag scraping cover 6.

[0040] Working principle: before dredging, according to the hole diameter of the drainage pipe to be dredged, the corresponding specification of the slag scraping cover 6 is selected, and the slag scraping cover 6 is inserted into the connecting sleeve 5, and then the locking nut 812 is screwed, the U-shaped pressing piece 810 is tightly attached to the connecting sleeve 5 by the locking nut 812, so that the mounting seat 80 is fixed on the connecting sleeve 5, so that the worm 82 is engaged with the groove on the slag scraping cover 6.

[0041] When dredging, first use the dredging vehicle 1 to discharge the sewage in the manholes at both ends of the drainage pipe to be dredged, then insert one end of the ring type sealing sleeve 2 connected with the stretchable air bag 3 into the end port of the drainage pipe to be dredged, and fix the ring type sealing sleeve 2 with the drainage port, connect the air injection pump on the dredging vehicle 1 with the air guide pipe 4, supply air to the air guide pipe 4 through the air injection pump, and the gas enters the stretchable air bag 3 through the gas conveying channel 21 in the ring type sealing sleeve 2, so that the stretchable air bag 3 is stretched due to the air injection, and the stretching force generated by the stretchable air bag 3 drives the connecting sleeve 5 to move forward, so that the dredging assembly 5 removes the sundries in the drainage pipe, and at the same time, the driving motor 83 drives the worm 82 to rotate, and the transmission between the worm 82 and the groove outside the slag scraping cover 6 drives the slag scraping cover 6 to rotate along the inner wall of the drainage pipe, so that the sundries attached to the side wall of the drainage pipe are scraped off, and at the same time, the slag scraping cover 6 rotates synchronously with the spiral blade 7, so that the solid residues in the lower part of the inner cavity of the drainage pipe are scooped up and transported into the mud suction pipe, and at the same time, the stretch force between the fixed crushing cone 9 and the spiral blade 7 on the rotating slag scraping cover 6 crushes the solid waste transported to the mud suction pipe, so that the long strip sundries such as branches in the drainage pipe are cut off, the transportation in the mud suction pipe is more smooth, and at the same time, the staff can judge the travel distance of the slag scraping cover 6 in the drainage pipe according to the air injection amount of the air injection pump and the internal pressure of the stretchable air bag 3, so as to judge the position of the blockage point, and at the same time, the overloading wear of the crushing part caused by the too fast advancing speed of the slag scraping cover 6 is avoided, so that the service life is reduced.

[0042] The above front, rear, left, right, top and bottom are based on the figures in the specification Figure 1 As the standard of the human observation angle, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0044] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dredging device for water supply and drainage pipelines, comprising a dredging vehicle (1), characterized in that: The sludge pumping pipe of the sludge pumping vehicle (1) is fitted with an annular sealing sleeve (2) for connecting to the drainage port. The annular sealing sleeve (2) is fitted with a telescopic airbag (3) on the outside of the inner end of the drainage pipe. The annular sealing sleeve (2) is provided with an air guide pipe (4) for injecting air into the telescopic airbag (3). The extension end of the telescopic airbag (3) is provided with a connecting sleeve (5). The connecting sleeve (5) is provided with a scraper cover (6) for removing sludge from the drainage pipe. The scraper cover (6) is connected to the sludge pumping pipe of the sludge pumping vehicle (1). Spiral blades (7) for crushing are evenly arranged inside the scraper cover (6). Auxiliary wheels (11) are evenly arranged on the outside of the scraper cover (6). A drive mechanism (8) for driving the scraper cover (6) to rotate is provided on one side of the connecting sleeve (5).

2. The dredging device for water supply and drainage pipelines according to claim 1, characterized in that: The connecting sleeve (5) is provided with a crushing cone (9) that forms a jaw crushing cross section with the slag scraper (6).

3. The dredging device for water supply and drainage pipelines according to claim 2, characterized in that: The spiral blade (7) consists of a crushing end located at the slag inlet of the slag scraper (6) and a transport section located inside the slag scraper (6).

4. The dredging device for water supply and drainage pipelines according to claim 3, characterized in that: The outer side of the annular sealing sleeve (2) is uniformly provided with mounting grooves (20), and a pneumatic top block (10) is slidably provided in the mounting grooves (20). The annular sealing sleeve (2) is provided with an air supply channel (21) for connecting the air guide pipe (4) and the mounting groove (20).

5. A dredging device for water supply and drainage pipelines according to claim 4, characterized in that: The axial line of the auxiliary wheel (11) and the axial line of the slag scraper (6) form an angle of 30-60 degrees.

6. A dredging device for water supply and drainage pipelines according to claim 5, characterized in that: The annular sealing sleeve (2) has a sealing rubber gasket (12) embedded on the side near the inlet and outlet port.

7. A dredging device for water supply and drainage pipelines according to claim 6, characterized in that: The drive mechanism (8) includes a mounting base (80), one side of which is hinged to the connecting sleeve (5), and a quick-fixing component (81) is provided on the side of the mounting base (80) away from the connecting sleeve (5). A worm gear (82) for driving the slag scraper (6) to rotate is rotatably provided inside the mounting base (80), and a drive motor (83) connected to the worm gear (82) is provided at one end of the mounting base (80).

8. A dredging device for water supply and drainage pipelines according to claim 7, characterized in that: The quick-fixing component (81) includes a U-shaped pressure plate (810), which is disposed on the side of the mounting base (80) away from the connecting sleeve (5). The outer side of the connecting sleeve (5) is provided with a threaded post (811) that matches the U-shaped pressure plate (810), and a locking nut (812) for fixing the U-shaped pressure plate (810) is provided on the outside of the threaded post (811).

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