Pipeline checking and dredging device

Abstract

The invention belongs to the technical field of pipeline dredging equipment, and provides a pipeline checking and dredging device which comprises a vehicle body. The desilting assembly comprises a working box arranged at the head of the vehicle body, a push plate is arranged on the side, away from the vehicle body, of the working box, two sets of air inlets used for sucking sludge are formed in the side, away from the vehicle body, of the push plate, filter screens are arranged in the two air inlets correspondingly, and a switching assembly is arranged in the working box and used for making the two sets of air inlets alternately generate negative pressure. A solid impurity collecting assembly is arranged at the bottom of the push plate, and a storage box communicating with the solid impurity collecting assembly is arranged in the vehicle body; and the troubleshooting assembly comprises a detection control box arranged on the vehicle body, and the detection control box is electrically connected with a pipe wall damage detection piece and a harmful gas detection piece. According to the device, sludge and solid impurities can be cleaned separately, the influence of the solid impurities on sludge suction is avoided, and meanwhile, the internal condition of the pipeline can be checked.

Description

Technical Field

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

[0002] The construction of municipal drainage facilities is an important part of urban infrastructure construction. If too much silt accumulates in the municipal drainage pipes, it will lead to poor circulation or even blockage of the municipal pipes. Municipal pipes need to be cleaned of silt and other wastes regularly to prevent urban waterlogging.

[0003] At present, the sediment in municipal drainage pipes is usually mainly sludge and a small amount of solid debris. The current dredging equipment often sucks out the sludge and solid debris together to achieve the purpose of dredging. However, during the operation, if large volumes of solid debris are pushed in the equipment pipeline, it is easy to cause the suction efficiency to slow down or even block the negative pressure pipeline of the dredging equipment, causing equipment failure and the dredging work to be forced to stop. At the same time, the existing dredging equipment cannot check the damage inside the pipeline, the harmful gas situation, etc., and has a single function. Summary of the invention

[0004] The purpose of the present invention is to provide a pipeline inspection and silt removal device to solve the above problems, so as to separate the silt and solid debris and avoid the influence of solid debris on silt suction, and at the same time to inspect the internal situation of the pipeline.

[0005] To achieve the above object, the present invention provides the following solution: a pipeline inspection and desilting device, comprising:

[0006] Vehicle body;

[0007] A dredging assembly comprises a working box arranged at the head of the vehicle body, a push plate is arranged at a side of the working box away from the vehicle body, two groups of air inlets for sucking sludge are opened at a side of the push plate away from the vehicle body, and filters are arranged in the two air inlets respectively, a switching assembly is arranged in the working box, and the switching assembly is used to make the two groups of air inlets generate negative pressure alternately so that the two groups of air inlets work alternately, a solid debris collection assembly is arranged at the bottom of the push plate, and a storage box connected to the solid debris collection assembly is arranged in the vehicle body;

[0008] The troubleshooting component comprises a detection control box arranged on the vehicle body, and the detection control box is electrically connected with a pipe wall damage detection component and a harmful gas detection component.

[0009] Preferably, the switching component includes a control housing fixedly connected in the working box. An air passage is provided in the control housing. Two ends of the air passage are respectively communicated with the two air inlets. The middle of the air passage is communicated with an air outlet. The air outlet is communicated with a negative pressure generating member. A piston plate is slidably connected in the air passage. A moving control member is arranged between the piston plate and the control housing. The piston plate approaches one of the air inlets and seals the air inlet.

[0010] Preferably, the moving control member includes a sliding groove formed on the side wall of the air passage along the axis of the air passage. The piston plate is slidably connected in the sliding groove through a moving block. A lead screw is rotatably connected in the control housing. One end of the lead screw is drivingly connected with a second motor. The moving block is threadedly sleeved on the lead screw.

[0011] Preferably, the negative pressure generating member includes a negative pressure pump arranged in the vehicle body. The air inlet of the negative pressure pump is communicated with the air outlet.

[0012] Preferably, the solid debris collection component includes a conveying roller horizontally rotatably connected to the push plate. The conveying roller is arranged at the bottom of the side of the push plate away from the vehicle body. A first motor is drivingly connected between the conveying roller and the push plate. A solid debris inlet is formed at the bottom of the side wall of the push plate. The conveying roller is used to convey solid debris into the solid debris inlet. A conveying member communicated with the solid debris inlet is arranged in the working box. The conveying member is also communicated with a storage box.

[0013] Preferably, the conveying member includes a conveying channel formed in the working box. One end of the conveying channel is communicated with the solid debris inlet. The other end of the conveying channel is communicated with the storage box. Two groups of conveying belts are arranged in parallel on the inner side of the conveying channel. The two conveying belts are arranged close to the side wall of the conveying channel. Solid debris is conveyed into the storage box through the gap between the two conveying belts.

[0014] Preferably, the far ends of the two filter meshes are respectively hinged on the inner wall of the air inlet. The near ends of the two filter meshes are respectively fixedly connected to one ends of hinge plates. The other ends of the two hinge plates are hinged. The two hinge plates are slidably connected in the push plate. A vibration excitation member is arranged between the hinge plates and the push plate.

[0015] Preferably, the vibration excitation member includes a ejector rod slidably connected in the push plate. One end of the ejector rod abuts against the hinge joint of the two hinge plates. A cam is rotatably connected in the push plate. The cam abuts against the other end of the ejector rod. A third motor is drivingly connected to the cam. A spring abuts between the side of the hinge plate away from the ejector rod and the push plate.

[0016] Preferably, a plurality of top spray nozzles and a plurality of bottom spray nozzles are fixedly connected to the top and bottom of the push plate respectively. The plurality of top spray nozzles are used for spraying water onto the top wall of the pipeline, and the plurality of bottom spray nozzles are used for spraying water onto the silt at the bottom of the pipeline. The plurality of top spray nozzles and bottom spray nozzles are respectively communicated with a water supply assembly.

[0017] Preferably, the water supply assembly includes a water pump and a water tank arranged in the vehicle body. The water inlet end of the water pump is communicated with the water tank, and the plurality of top spray nozzles and bottom spray nozzles are respectively communicated with the water outlet end of the water pump.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. In the present invention, by integrally arranging the air inlet and the solid debris collection assembly on the push plate, the silt and solid debris are separately collected, reducing the influence of solid debris on the silt suction; at the same time, two groups of air inlets are opened, and the two air inlets work alternately through a switching assembly. During the process of sucking silt through one air inlet, the solid impurities on the filter screen in the other air inlet can be washed off from the filter screen, effectively avoiding the influence of solid debris on the silt suction work.

[0020] 2. In the present invention, by arranging a pipe wall damage detection member and a harmful gas detection member on the vehicle body, the interior of the pipeline can be inspected and checked while the pipeline is being dredged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the dredging device of the present invention;

[0023] Figure 2 It is a schematic diagram of the push plate of the present invention;

[0024] Figure 3 It is a top view cross-sectional view of the push plate of the present invention;

[0025] Figure 4 It is Figure 3 The partial enlarged view of A in

[0026] Figure 5 It is a schematic diagram of the control housing of the present invention;

[0027] Among them, 1. vehicle body; 2. water pump; 3. negative pressure pump; 4. storage tank; 5. water tank; 6. detection control box; 7. metal flaw detector; 8. methane monitor; 9. camera; 10. walking track; 11. working hole; 12. telescopic rod; 13. support arm; 14. working box; 15. push plate; 16. top spray head; 17. conveying roller; 18. bottom spray head; 19. conveying channel; 20. conveying belt; 21. filter screen; 22. baffle; 23. first motor; 24. solid debris inlet; 25. control housing; 26. air outlet; 27. ventilation duct; 28. piston plate; 29. moving block; 30. lead screw; 31. second motor; 32. chute; 33. third motor; 34. cam; 35. hinged plate; 36. spring; 37. air inlet; 38. ejector rod. Detailed implementation manner

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0030] Embodiment 1:

[0031] Referring to Figures 1-5 , the present invention provides a pipeline inspection and dredging device, including:

[0032] Vehicle body 1;

[0033] Dredging component, including a working box 14 arranged at the head of the vehicle body 1, a push plate 15 is arranged on the side of the working box 14 away from the vehicle body 1, two air inlets 37 for sucking silt are arranged on the side of the push plate 15 away from the vehicle body 1, filter screens 21 are respectively arranged in the two air inlets 37, a switching component is arranged in the working box 14, and the switching component is used to alternately generate negative pressure in the two air inlets 37 to make the two air inlets 37 work alternately. A solid debris collection component is arranged at the bottom of the push plate 15, and a storage tank 4 communicated with the solid debris collection component is arranged in the vehicle body 1;

[0034] Inspection component, including a detection control box 6 arranged on the vehicle body 1, and the detection control box 6 is electrically connected to a pipe wall damage detection piece and a harmful gas detection piece.

[0035] The main function of the vehicle body 1 is to facilitate the movement of the dredging device in the pipeline; the main function of the push plate 15 is to integrate the air inlet 37 and the solid debris collection component, and at the same time shovel up the silt accumulated at the bottom of the pipeline; the main function of the switching component is to make the two groups of air inlets 37 work alternately. During the process of sucking silt by one group of air inlets 37, the debris on the filter screen 21 in the other group of air inlets 37 can fall back into the water again, avoiding the influence of debris accumulation on silt suction; the main function of the solid debris collection component is to centrally collect the solid debris in the water and transport it to the storage tank 4 to achieve the cleaning of solid debris; the main function of the detection control box 6 is to receive the detection data of the pipe wall damage detection component and the harmful gas detection component, and send the data to the ground control terminal. Overall, in the present invention, by integrating the air inlet and the solid debris collection component on the push plate, the silt and the solid debris are collected separately, reducing the influence of solid debris on silt suction; at the same time, two groups of air inlets are opened, and the two air inlets work alternately through the switching component. During the process of sucking silt by one air inlet, the solid impurities on the filter screen in the other group of air inlets can be washed off from the filter screen, effectively avoiding the influence of solid debris on the silt suction work; in addition, in the present invention, by arranging the pipe wall damage detection component and the harmful gas detection component on the vehicle body, the inside of the pipeline can be inspected and checked while dredging the pipeline.

[0036] In a further optimized solution, a traveling track 10 is arranged at the bottom of the vehicle body 1, so that the vehicle body 1 can move smoothly in the pipeline.

[0037] In a further optimized solution, a working hole 11 is arranged at the front end of the vehicle body 1. One end of a support arm 13 is hinged in the working hole 11, the other end of the support arm 13 is fixedly connected to the working box 14, and a telescopic rod 12 is hinged between the top of the working hole 11 and the support arm 13.

[0038] As Figure 1 shown, the telescopic rod 12 can be an electric telescopic rod. During the dredging process, the height of the push plate 15 can be adjusted by controlling the length of the telescopic rod 12, so that the bottom of the push plate 15 is close to the inner wall bottom of the pipeline, making the dredging effect more thorough.

[0039] In a further optimized solution, the switching component includes a control housing 25 fixedly connected to the working box 14. An air passage 27 is opened in the control housing 25. Both ends of the air passage 27 are communicated with the two air inlets 37 respectively. The middle of the air passage 27 is communicated with an air outlet 26. The air outlet 26 is communicated with a negative pressure generating member. A piston plate 28 is slidably connected in the air passage 27. A moving control member is arranged between the piston plate 28 and the control housing 25. The piston plate 28 is close to one air inlet 37 and seals the air inlet 37.

[0040] As Figure 3 and Figure 5As shown, when the piston plate 28 moves to the left, the piston plate 28 blocks the air vent at the left end of the air passage 27, so that the negative pressure no longer appears at the air inlet 37 on the left side. At the same time, the air inlet 37 on the right side is connected to the air outlet 26 through the air vent at the right end of the air passage 27. The air inlet 37 on the right side generates negative pressure under the action of the negative pressure generating member, realizing the suction of the sludge.

[0041] Similarly, when the piston plate 28 moves to the right, the air inlet 37 on the left side performs the sludge suction work.

[0042] In a further optimized solution, when dredging in a pipeline with few solid debris, to improve work efficiency, the piston plate 28 can be moved to the middle of the air passage 27. At this time, the air outlet 26 is connected to both air inlets 37, enabling both air inlets 37 to suck the sludge simultaneously.

[0043] In a further optimized solution, the movement control member includes a chute 32 opened on the side wall of the air passage 27 along the axis of the air passage 27. The piston plate 28 is slidably connected to the chute 32 through a moving block 29. A lead screw 30 is rotatably connected in the control housing 25. One end of the lead screw 30 is drivingly connected to a second motor 31. The moving block 29 is threadedly sleeved on the lead screw 30.

[0044] As Figure 5 shown, when it is necessary to move the piston plate 28 to the left, the second motor 31 can be controlled to drive the lead screw 30 to rotate. When the lead screw 30 rotates, the moving block 29 is driven to move to the right through screw transmission, realizing the rightward movement of the piston plate 28. At the same time, when the second motor 31 rotates in the reverse direction, the leftward movement of the piston plate 28 can be realized.

[0045] In a further optimized solution, the negative pressure generating member includes a negative pressure pump 3 arranged in the vehicle body 1. The air inlet of the negative pressure pump 3 is connected to the air outlet 26.

[0046] As Figure 1 shown, the air inlet end of the negative pressure pump 3 is connected to the air outlet 26 through a hose.

[0047] In a further optimized solution, the air outlet end of the negative pressure pump 3 is connected to the ground equipment through a hose, directly transporting the sludge to the ground.

[0048] In a further optimized solution, the solid debris collection assembly includes a conveyor roller 17 horizontally rotatably connected to the push plate 15. The conveyor roller 17 is arranged at the bottom of the push plate 15 on the side away from the vehicle body 1. A first motor 23 is drivingly connected between the conveyor roller 17 and the push plate 15. A solid debris inlet 24 is opened at the bottom of the side wall of the push plate 15. The conveyor roller 17 is used to transport the solid debris into the solid debris inlet 24. A conveying member connected to the solid debris inlet 24 is arranged in the working box 14, and the conveying member is also connected to a storage box 4.

[0049] AsFigure 2 As shown, two groups of baffles 22 are fixedly connected to the bottom of the side wall of the push plate 15. The two groups of baffles 22 are arranged away from the vehicle body 1, and the conveying roller 17 is rotatably connected between the two baffles 22. The first motor 23 is fixedly connected to one of the baffles 22. Helical blades with opposite rotation directions are arranged at both ends of the conveying roller 17. During the process of the first motor 23 driving the conveying roller 17 to rotate, the solid debris can be pushed by the helical blades along the push plate 15 towards the middle solid debris inlet 24 and enter the solid debris inlet 24. Then, the solid debris is conveyed to the storage box 4 by the conveying member for temporary storage.

[0050] In a further optimized solution, the conveying member includes a conveying channel 19 opened in the working box 14. One end of the conveying channel 19 is communicated with the solid debris inlet 24, and the other end of the conveying channel 19 is communicated with the storage box 4. Two conveying belts 20 are arranged in parallel inside the conveying channel 19. The two conveying belts 20 are arranged close to the side wall of the conveying channel 19. The solid debris is conveyed to the storage box 4 through the gap between the two conveying belts 20.

[0051] In a further optimized solution, a driving motor is arranged between the conveying belt 20 and the working box 14 to move the mutually approaching ends of the two conveying belts 20 in a direction away from the push plate 15.

[0052] As Figure 1 shown, the discharge end of the conveying channel 19 is communicated with the storage box 4 through a hose. After the conveying roller 17 conveys the solid debris into the solid debris inlet 24, the solid debris contacts the two conveying belts 20 and moves towards the storage box 4 from the middle of the two conveying belts 20 under the drive of the conveying belts 20, realizing the collection of the fixed debris.

[0053] In a further optimized solution, the far ends of the two filter meshes 21 are respectively hinged to the inner wall of the air inlet 37. The near ends of the two filter meshes 21 are respectively fixedly connected to one end of a hinge plate 35. The other ends of the two hinge plates 35 are hinged. The two hinge plates 35 are slidably connected in the push plate 15, and a vibration excitation member is arranged between the hinge plate 35 and the push plate 15.

[0054] In a further optimized solution, the vibration excitation member includes a push rod 38 slidably connected in the push plate 15. One end of the push rod 38 abuts against the hinge joint of the two hinge plates 35. A cam 34 is rotatably connected in the push plate 15. The cam 34 abuts against the other end of the push rod 38. A third motor 33 is drivingly connected to the cam 34. A spring 36 abuts between the side of the hinge plate 35 away from the push rod 38 and the push plate 15.

[0055] As Figure 3 and Figure 4As shown, when the piston plate 28 moves to the left, the sludge is sucked at the right intake port 37, and no negative pressure is generated at the left intake port 37. At this time, the third motor 33 is controlled to rotate. The third motor 33 drives the cam 34 to rotate. The ejector rod 38 is pushed by the cam 34. During the movement of the ejector rod 38, two groups of articulated plates 35 are simultaneously pushed. The movement of the two articulated plates 35 drives the filter net 21 to move and compress the spring 36. As the cam 34 continues to rotate, the small-diameter end of the cam contacts the ejector rod 38. The ejector rod 38 moves in the reverse direction under the action of the spring 36 and remains in contact with the cam 34. During the rapid rotation of the third motor 33, the ejector rod 38 and the spring 36 cause the articulated plate 35 to move rapidly back and forth, making the filter net 21 vibrate, facilitating the vibration and shedding of solid debris on the filter net 21, and keeping the outer teeth of the filter net 21 unobstructed. No solid debris will adhere to the surface of the filter net 21 when the left intake port 37 starts to suck sludge.

[0056] In a further optimized solution, a plurality of top spray nozzles 16 and a plurality of bottom spray nozzles 18 are respectively fixedly connected to the top and bottom of the push plate 15. The plurality of top spray nozzles 16 are used to spray water on the top wall of the pipeline, and the plurality of bottom spray nozzles 18 are used to spray water on the sludge at the bottom of the pipeline. The plurality of top spray nozzles 16 and bottom spray nozzles 18 are respectively connected to a water supply assembly.

[0057] In a further optimized solution, the water supply assembly includes a water pump 2 and a water tank 5 arranged in the vehicle body 1. The water inlet end of the water pump 2 is communicated with the water tank 5, and the plurality of top spray nozzles 16 and bottom spray nozzles 18 are respectively communicated with the water outlet end of the water pump 2.

[0058] As Figure 1 shown, the water pump 2 makes the water in the water tank 5 spray out from the top spray nozzles 16 and the bottom spray nozzles 18. The water in the top spray nozzles 16 directly flushes the upper part of the inner wall of the pipeline, and can flush down sludge, debris, etc. The bottom spray nozzles 18 can flush up the sludge, debris, etc. deposited at the bottom of the pipeline, facilitating the collection of sludge and solid debris and ensuring the dredging effect.

[0059] Embodiment 2:

[0060] In a further optimized solution, the pipe wall damage detection component includes a metal flaw detector 7, and the harmful gas detection component includes a methane monitor 8. The metal flaw detector 7 and the methane monitor 8 are respectively fixedly connected in the detection control box 6.

[0061] As Figure 1 shown, a processor (not shown in the figure) for receiving the detection data of the metal flaw detector 7 and the methane monitor 8 and a communicator (not shown in the figure) for transmitting the detection data to the ground mid-end device are arranged in the detection control box 6, facilitating the ground staff to understand the internal situation of the pipeline at any time and realizing the functions of investigation and inspection.

[0062] In a further optimized solution, a camera 9 is further arranged on the top of the detection control box 6, which can directly capture the internal picture of the pipeline.

[0063] As Figure 1 shown, in this embodiment, the metal flaw detector 7, the methane monitor 8 and the camera 9 are arranged at the tail of the vehicle body 1, which can avoid the interference of the dredging work on the detection work. At the same time, the tail of the vehicle body 1 is in a cleaned state, which can avoid the influence of silt and sundries and facilitate the effective detection of the pipeline.

[0064] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0065] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A pipeline inspection and dredging device, characterized in that, Including: Vehicle body (1); Silt cleaning component, including a working box (14) arranged at the head of the vehicle body (1). A push plate (15) is arranged on the side of the working box (14) away from the vehicle body (1). Two air inlets (37) for sucking silt are arranged on the side of the push plate (15) away from the vehicle body (1). Filter meshes (21) are respectively arranged in the two air inlets (37). A switching component is arranged in the working box (14). The switching component is used to alternately generate negative pressure in the two air inlets (37) so that the two air inlets (37) work alternately. A solid debris collection component is arranged at the bottom of the push plate (15). A storage box (4) communicated with the solid debris collection component is arranged in the vehicle body (1); Investigation component, including a detection control box (6) arranged on the vehicle body (1). The detection control box (6) is electrically connected to a pipe wall damage detector and a harmful gas detector.

2. The pipeline inspection and dredging device according to claim 1, characterized in that: The switching component includes a control housing (25) fixedly connected in the working box (14). An air passage (27) is opened in the control housing (25). Two ends of the air passage (27) are respectively communicated with the two air inlets (37). The middle of the air passage (27) is communicated with an air outlet (26). The air outlet (26) is communicated with a negative pressure generating component. A piston plate (28) is slidably connected in the air passage (27). A moving control component is arranged between the piston plate (28) and the control housing (25). The piston plate (28) approaches one air inlet (37) and seals this air inlet (37).

3. The pipeline inspection and dredging device according to claim 2, wherein: The moving control component includes a sliding groove (32) opened on the side wall of the air passage (27) along the axis of the air passage (27). The piston plate (28) is slidably connected in the sliding groove (32) through a moving block (29). A lead screw (30) is rotatably connected in the control housing (25). One end of the lead screw (30) is drivingly connected to a second motor (31). The moving block (29) is threadedly sleeved on the lead screw (30).

4. The pipeline inspection and dredging device according to claim 2, characterized in that: The negative pressure generating component includes a negative pressure pump (3) arranged in the vehicle body (1). The air inlet of the negative pressure pump (3) is communicated with the air outlet (26).

5. The pipeline inspection and dredging device according to claim 1, wherein: The solid debris collection component includes a conveying roller (17) horizontally rotatably connected to the push plate (15). The conveying roller (17) is arranged at the bottom of the side of the push plate (15) away from the vehicle body (1). A first motor (23) is drivingly connected between the conveying roller (17) and the push plate (15). A solid debris inlet (24) is opened at the bottom of the side wall of the push plate (15). The conveying roller (17) is used to convey solid debris into the solid debris inlet (24). A conveying component communicated with the solid debris inlet (24) is arranged in the working box (14). The conveying component is also communicated with the storage box (4).

6. The pipeline inspection and dredging device according to claim 5, wherein: The conveying member includes a conveying channel (19) opened in the working box (14). One end of the conveying channel (19) is communicated with the solid debris inlet (24), and the other end of the conveying channel (19) is communicated with the storage box (4). Two sets of conveying belts (20) are arranged in parallel inside the conveying channel (19), and the two conveying belts (20) are arranged close to the side wall of the conveying channel (19). Solid debris is conveyed into the storage box (4) through the gap between the two conveying belts (20).

7. A pipeline inspection and dredging device according to claim 1, characterized in that: The far ends of the two filter meshes (21) are respectively hinged on the inner wall of the air inlet (37). The near ends of the two filter meshes (21) are respectively fixedly connected to one end of a hinge plate (35). The other ends of the two hinge plates (35) are hinged. The two hinge plates (35) are slidably connected in the push plate (15), and a vibration excitation member is arranged between the hinge plate (35) and the push plate (15).

8. The pipeline inspection and dredging device according to claim 7, characterized in that: The vibration excitation member includes a push rod (38) slidably connected in the push plate (15). One end of the push rod (38) abuts against the hinge joint of the two hinge plates (35). A cam (34) is rotatably connected in the push plate (15). The cam (34) abuts against the other end of the push rod (38). A third motor (33) is drivingly connected to the cam (34). A spring (36) abuts between the side of the hinge plate (35) away from the push rod (38) and the push plate (15).

9. The pipeline inspection and dredging device according to claim 1, wherein: The top and bottom of the push plate (15) are respectively fixedly connected with a plurality of top spray heads (16) and a plurality of bottom spray heads (18). The plurality of top spray heads (16) are used for spraying water on the top wall of the pipeline, and the plurality of bottom spray heads (18) are used for spraying water on the silt at the bottom of the pipeline. The plurality of top spray heads (16) and bottom spray heads (18) are respectively communicated with a water supply assembly.

10. A pipeline inspection and dredging device according to claim 9, characterized in that: The water supply assembly includes a water pump (2) and a water tank (5) arranged in the vehicle body (1). The water inlet end of the water pump (2) is communicated with the water tank (5). The plurality of top spray heads (16) and bottom spray heads (18) are respectively communicated with the water outlet end of the water pump (2).

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