Hydraulic engineering desilting device

Abstract

The invention discloses a hydraulic engineering desilting device, and belongs to the technical field of desilting devices, the hydraulic engineering desilting device comprises a hollow cabinet, a walking assembly is arranged on the lower surface of the cabinet, and the cabinet can move and steer by means of the walking assembly; a sludge suction pipe is arranged in the machine cabinet and can move vertically, a lifting assembly enabling the sludge suction pipe to move is arranged in the machine cabinet, the axis of the sludge suction pipe is vertically arranged, the upper end of the sludge suction pipe is blocked, and the lower end of the sludge suction pipe extends out of the machine cabinet. A side opening pipe is fixedly connected to the side face of the sludge suction pipe and communicated with the sludge suction pipe, a sludge suction pump is connected to the end, away from the sludge suction pipe, of the side opening pipe, the sludge suction pipe and the side opening pipe jointly serve as the suction end of the sludge suction pump, the discharge end of the sludge suction pump is connected with a hose, and the hose extends out of the cabinet from the side face of the cabinet. The device can be used for desilting the pit slot of the ditch.

Description

Technical Field

[0001] The invention belongs to the technical field of silt removal devices, and in particular relates to a silt removal device for a water conservancy project. Background Art

[0002] Urban ditches are a type of water conservancy engineering construction. The bottom of urban ditches has become smelly due to the long-term accumulation of silt, and in periods of heavy rainfall, the ditches are prone to flooding due to the decrease in their water storage capacity. Therefore, it is necessary to dredge urban ditches to ensure their water storage capacity.

[0003] Existing dredging methods, such as using a small excavator bucket, can dig out the silt accumulated at the bottom of the ditch. However, this method can only clean the silt accumulated at the bottom of the ditch or the relatively flat ditch. In reality, although the bottom of the urban ditch is a flat hard surface, the bottom of the ditch will produce pits of different sizes due to long-term water erosion, and silt will also accumulate in the pits. The excavator bucket is large in size and difficult to reach into the pit, so it is impossible to clean the silt in the pit. Summary of the invention

[0004] The hydraulic engineering silt clearing device of the present invention can clear the silt in the ditches and pits.

[0005] In order to solve the above problems, the present invention is implemented by the following scheme: A desilting device for a water conservancy project includes a cabinet, a plurality of walking components are arranged on the lower surface of the cabinet, and the desilting device can move and turn by relying on the walking components. A sludge suction pipe and a lifting component for moving the sludge suction pipe are arranged in the cabinet, the upper end of the sludge suction pipe is blocked, and the lower end of the sludge suction pipe extends out of the cabinet.

[0006] A side opening pipe is fixedly connected to the upper end side of the mud suction pipe, the side opening pipe is communicated with the mud suction pipe, the end of the side opening pipe away from the mud suction pipe is connected to a mud suction pump, the mud suction pipe and the side opening pipe together serve as the suction end of the mud suction pump, the discharge end of the mud suction pump is connected to a hose, and the hose extends out of the cabinet from the side of the cabinet.

[0007] The present invention can move the mud suction pipe vertically by arranging a lifting component, so that the lower end of the mud suction pipe can be extended into the pit of the ditch. Because the small amount of water remaining in the ditch cannot block the operator's field of vision, the operator can directly observe whether the mud suction pipe is extended into the pit of the ditch, and then the suction force generated by the mud suction pump is used to discharge the sludge to both sides of the ditch through the mud suction pipe, the side opening pipe and the hose, thereby completing the thorough dredging of the ditch.

[0008] Furthermore, a connection seat is fixedly connected in the cabinet, and a universal groove is provided on the connection seat, and the shape of the universal groove is a non-complete sphere. A universal ball is provided in the universal groove, and the center of the universal ball coincides with the center of the universal groove; a perforation is provided on the universal ball, and the universal ball is movably sleeved on the mud suction pipe through the perforation; the mud suction pipe and the universal ball can rotate as a whole relative to the universal groove; two avoidance grooves are provided on the connection seat, and the two avoidance grooves are respectively located at the upper end and the lower end of the universal groove, and the two avoidance grooves are connected with the universal groove to form a connection groove, and the upper end and the lower end of the mud suction pipe both pass through the connection groove; the lifting assembly is installed on the universal ball.

[0009] The human eye can only observe the location of the ditch, but not the bottom of the ditch. The bottom of the ditch may have different shapes. If there is a protrusion at the bottom of the ditch, the human eye cannot see the protrusion through the silt. Therefore, during the manual operation of the ditch descent, the lower end of the ditch may hit the protrusion. After hearing the sound of the ditch ditch colliding with the protrusion, due to the human reaction time, the ditch ditch cannot be stopped immediately after the collision. Instead, the ditch ditch is stopped within a certain period of time after the collision. There is a certain time lag, such as 0.5s. The lag will cause the ditch ditch to continue to descend a short distance after hitting the protrusion. During the continued descent, if there is no universal ball and universal groove, the ditch ditch will move vertically downward. The ditch ditch is equivalent to a jack that lifts the entire device. In special cases, the entire device may overturn due to the unstable center of gravity after lifting. The present invention designs a universal ball and a universal groove, so that in the aforementioned hysteresis situation, if the mud suction pipe continues to descend, the mud suction pipe and the universal ball can be adaptively universally rotated as a whole according to the shape of the bottom surface of the pit, so that the mud suction pipe can produce a certain deflection. In this case, although the mud suction pipe is still descending, the operator can stop the mud suction pipe from descending in time because the axis of the mud suction pipe is no longer vertical. In addition, the mud suction pipe and the universal ball can be adaptively deflected as a whole according to the shape of the bottom surface of the pit, and the mud in pits of different shapes and depths can be extracted, and the adaptability is strong.

[0010] By providing the avoidance groove, the deflection angle of the mud suction pipe is increased, the flexibility of the entire device is improved, and the mud suction pipe is prevented from interfering with the connecting seat when deflected.

[0011] Furthermore, the lifting assembly includes a lifting motor, a mounting block and a lifting screw. The non-rotating shaft end of the lifting motor is fixedly connected to the universal ball, and the rotating shaft of the lifting motor is arranged parallel to the axis of the mud suction pipe; the mounting block is fixedly connected to the circumferential side wall of the mud suction pipe and is located above the connecting groove, and a threaded through hole is opened on the mounting block in a direction parallel to the axis of the mud suction pipe; the lower end of the lifting screw is fixedly connected to the rotating shaft of the lifting motor, the rotating shaft of the lifting motor coincides with the rotating shaft of the lifting screw, and the upper end of the lifting screw is threadedly connected to the mounting block through a threaded through hole.

[0012] The main function of the lifting assembly is to extend the sludge suction pipe into the pit to facilitate the removal of sludge in the pit.

[0013] Furthermore, the outer wall of the universal ball is provided with a plurality of grooves, which are densely distributed on the outer surface of the universal ball. A ball is movably embedded in each groove, and the ball can rotate relative to the universal ball, with a part of the ball in the groove and another part exposed outside the groove, and the part of the ball exposed outside the groove is in single-point contact with the inner wall of the universal groove.

[0014] If there is no design of grooves and balls, there will be sliding friction between the universal ball and the universal groove; the present invention designs grooves and balls so that the universal ball and the universal groove do not contact each other, and the rolling friction of the balls replaces the sliding friction of the universal ball, thereby reducing the resistance of the universal ball to universal rotation relative to the universal groove.

[0015] Furthermore, the surface area of ​​the groove is greater than half the surface area of ​​the ball, thereby preventing the ball from falling out of the groove.

[0016] Furthermore, a screw pusher is provided in the mud suction pipe; the rotating rod of the screw pusher coincides with the axis of the mud suction pipe, and the conveying motor of the screw pusher is located at the top of the side-opening pipe.

[0017] The screw propeller can assist the dredge pump to suck the sludge and reduce the load of the dredge pump. When the load of the dredge pump is reduced, the power of the dredge pump will naturally decrease. The low-power dredge pump has lower product specification requirements for actual product production and is easier to purchase and assemble.

[0018] Furthermore, a filter screen is fixedly connected to the lower end of the mud suction pipe, and the filter screen is located below the end of the rotating rod of the screw pusher.

[0019] If there is no filter, solid objects such as stones will be captured by the screw pusher, which will block the sludge suction pipe and even damage the sludge pump, affecting its normal operation.

[0020] Furthermore, a flexible sleeve is fixedly connected to the end of the mud suction pipe.

[0021] When the lower end of the suction pipe hits solid objects, the flexible sleeve can play a certain role in buffering and prevent the suction pipe from being damaged and cracked. If the middle of the suction pipe is cracked due to impact, the suction pump will not be able to generate a vacuum environment through the suction pipe. In addition, the flexible sleeve can buffer the impact and better protect the screw pusher and the suction pump from strong impact.

[0022] Furthermore, the axis of the mud suction pipe passes through the center of the universal ball.

[0023] The advantage of such an arrangement is that the sludge suction pipe is located at the center of the universal ball, and the maximum angles at which the sludge suction pipe can rotate in all directions are the same, which facilitates achieving the rationality of the deflection angles in all directions.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can move the sludge suction pipe vertically by arranging a lifting assembly, so that the lower end of the sludge suction pipe extends into the pit of the ditch, thereby completing the complete ditch desilting.

[0025] 2. This solution is designed with a universal ball and a universal slot, which can make the lower end of the sludge suction pipe adaptably rotate in a universal direction when it contacts a solid object, so as to avoid the entire device being lifted up and overturned in the case of hysteresis in human operation. In addition, the sludge suction pipe and the universal ball can be adaptively deflected as a whole according to the shape of the bottom of the pit, and can extract sludge from pits of different shapes and depths, with strong adaptability.

[0026] 3. This solution designs a screw pusher and a dredge suction pump to suck sludge together, which can miniaturize the power of the dredge suction pump, facilitate the selection of the dredge suction pump, and make it easier to assemble the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the dredging device for water conservancy projects; Figure 2 is one of the cross-sectional views of the device; Figure 3 This is a cross-sectional view of the device after the mud suction pipe is rotated; Figure 4 It is a schematic diagram of the position relationship between the sludge suction pipe and the sludge suction pump.

[0028] Figure numerals: 1. cabinet; 2. steering mechanism; 3. mounting frame; 4. moving wheel; 5. driving mechanism; 6. connecting seat; 7. universal groove; 8. universal ball; 9. ball bearing; 10. mud suction pipe; 11. perforation; 12. conveying motor; 13. rotating rod; 14. spiral blade; 15. side opening pipe; 16. mud suction pump; 17. hose; 18. lifting motor; 19. mounting block; 20. lifting screw rod; 21. flexible sleeve; 22. filter net; 23. avoidance groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0030] See Figure 1 and Figure 2 A desilting device for a water conservancy project includes a cabinet 1, and a mud suction pipe 10 arranged in the cabinet 1 and a lifting component for lifting the mud suction pipe 10.

[0031] In this embodiment, the cabinet 1 is a shell structure, and the whole is a rectangular parallelepiped. A walking assembly is respectively provided at the four corners of the bottom of the cabinet 1. The walking assembly includes a steering mechanism 2, a mounting frame 3, a moving wheel 4, and a driving mechanism 5.

[0032] The steering mechanism 2 includes a steering motor and a first waterproof housing. The first waterproof housing is a hollow box body, and the first waterproof housing is welded and fixed to the bottom surface of the cabinet 1. The non-rotating shaft end of the steering motor is fixed in the first waterproof housing by bolts, and the rotating shaft of the steering motor is arranged vertically, and the rotating shaft of the steering motor passes through the lower surface of the first waterproof housing. The lower surface of the first waterproof housing is provided with a hole for the rotating shaft of the steering motor to pass through. A rubber ring is embedded in the hole, and the rubber ring is sleeved on the rotating shaft of the steering motor. When the steering motor rotates, because the rubber ring is embedded in the hole, the rubber ring does not rotate with the rotating shaft of the steering motor, and the rotating shaft of the steering motor can rotate relative to the rubber ring. The rubber ring relies on its own elastic force to cling to the outer wall of the rotating shaft of the steering motor, ensuring that the outer wall of the rotating shaft of the steering motor and the inner wall of the hole are sealed, and the water in the ditch cannot enter the first waterproof housing from the hole. The steering motor is in the first waterproof housing to achieve the purpose of waterproofing.

[0033] The mounting frame 3 is welded and fixed on the rotating shaft of the steering motor, and can rotate with the rotating shaft of the steering motor, and the axis of the rotating shaft is arranged in the vertical direction. The moving wheel 4 is rotatably connected to the mounting frame 3 through the rotating shaft; the rotating shaft of the moving wheel 4 is in the horizontal direction. The surface of the moving wheel 4 adopts an anti-skid groove, which can effectively prevent the moving wheel 4 from slipping during rolling.

[0034] The driving mechanism includes a driving motor and a second waterproof housing. The second waterproof housing is a hollow box, which is welded and fixed on the mounting frame 3. The non-rotating shaft end of the driving motor is fixed in the second waterproof housing by bolts, and the rotating shaft of the driving motor passes through the second waterproof housing. The second waterproof housing is provided with a hole for the rotating shaft of the driving motor to pass through. The rotating shaft of the driving motor is fixedly connected to the rotating shaft of the moving wheel 4, and the rotating shaft of the driving motor coincides with the axis of the moving wheel 4. The driving motor is used to drive the moving wheel 4 to rotate. The hole on the second waterproof housing and the rotating shaft of the driving motor are also sealed by a rubber ring, and the sealing method is the same as the rubber ring sealing method on the aforementioned steering mechanism 2, which will not be repeated.

[0035] In this embodiment, the steering mechanisms 2 and driving mechanisms 5 of all the traveling components are wired to the power source via wires, and the wires are long enough so as not to interfere with the traveling and steering of the device.

[0036] The four steering mechanisms 2 are artificially controlled to be powered on and off by a main switch at the same time. The four driving mechanisms 5 are artificially controlled to be powered on and off by another main switch at the same time.

[0037] The four steering mechanisms 2 are electrically connected at the same time through a controller, and the controller controls the steering motors of the four steering mechanisms 2 to rotate forward or reverse at the same time. Similarly, the four driving mechanisms 5 are electrically connected at the same time through another controller, and the other controller controls the driving motors of the four driving mechanisms 5 to rotate forward or reverse at the same time. In other embodiments, universal wheels can be directly installed at the four corners of the bottom of the cabinet 1 to replace the four walking components. When the working environment at the bottom of the ditch is good, people on the shore pull the device with a rope. The device relies on the universal wheel to achieve movement and steering. One end of the rope is tied to the outer shell of the cabinet 1, and the other end is held in the hand of the person.

[0038] A connection base 6 is welded and fixed in the cabinet 1, and a universal groove 7 is provided in the middle of the connection base 6. The shape of the universal groove 7 is a non-complete sphere. All non-complete spheres in this solution mean: a part of a sphere. Figure 2 From the perspective of the universal groove 7, the upper and lower ends are missing, and the whole is drum-shaped. A universal ball 8 is arranged in the universal groove 7, and the connecting seat 6 is sleeved on the universal ball 8 by the universal groove 7. The inner wall of the universal groove 7 does not contact the outer wall of the universal ball 8, and the ball center of the universal groove 7 coincides with the ball center of the universal ball 8. The connecting seat is a symmetrical two-half structure, which is convenient for assembly with the universal ball 8.

[0039] The spherical outer wall of the universal ball 8 is provided with a plurality of grooves, which are not completely spherical. The plurality of grooves are densely distributed on the entire spherical outer wall of the universal ball 8, and a ball 9 is movably embedded in each groove, and the ball 9 can roll relative to the universal ball.

[0040] A portion of the outer wall of the ball 9 is in contact with the inner wall of the corresponding groove, and the ball 9 cannot be separated from the groove. The reason why the ball 9 cannot be separated from the groove is that the surface area of ​​the groove is greater than half the surface area of ​​the ball 9, causing the ball 9 to be stuck in the groove; another portion of the outer wall of the ball 9 is exposed outside the groove, and the portion of the ball 9 exposed outside the groove is in single-point contact with the inner wall of the universal groove 7. The meaning of single-point contact is that the ball 9 is in point contact with the universal groove 7.

[0041] The universal ball 8 can rotate universally relative to the universal groove 7. During the rotation of the universal ball 8 relative to the universal groove 7, rolling friction is generated between the ball 9 and the inner wall of the universal groove 7 due to the abutment between the ball 9 and the inner wall of the universal groove 7. In other embodiments, no grooves and balls 9 are provided on the universal ball 8, and the outer wall of the universal ball 8 is abutted against the inner wall of the universal groove 7. At this time, there is sliding friction between the universal ball 8 and the inner wall of the universal groove 7.

[0042] The hydraulic engineering desilting device also includes a sludge suction assembly for absorbing sludge, and the sludge suction assembly includes a sludge suction pipe 10, a screw pusher, a side opening pipe 15, a sludge suction pump 16, a hose 17, a lifting assembly and a flexible sleeve 21.

[0043] In this embodiment, the axis of the mud suction pipe 10 passes through the center of the universal ball 8. The universal ball 8 is provided with a through hole 11, and the universal ball 8 is movably mounted on the mud suction pipe 10 through the through hole 11. The through hole 11 restricts the mud suction pipe 10 to move along its axis relative to the through hole 11, and cannot rotate around the axis of the through hole 11. Figure 2 From the perspective of the angle of view, the upper and lower ends of the mud suction pipe 10 both pass through the through hole 11 on the universal ball 8. Since the mud suction pipe 10 and the universal ball 8 can be universally rotated as a whole, two avoidance grooves 23 are provided on the connecting seat 6. The two avoidance grooves 23 are used to avoid interference when the mud suction pipe 10 is universally rotated. The two avoidance grooves 23 are respectively located at the upper and lower ends of the universal groove 7. In this embodiment, the avoidance groove 23 is truncated cone-shaped, and the bottom surface of the side of the avoidance groove 23 with a smaller area is connected to the upper or lower end of the corresponding universal groove 7. The two avoidance grooves 23 and the universal groove 7 form a connecting hole, and the connecting hole passes through the connecting seat 6 along the axial direction of the mud suction pipe 10. In this embodiment, the maximum rotation angle of the mud suction pipe 10 is 30 degrees. See Figure 3 , the meaning of the maximum rotation angle is: when the suction pipe 10 rotates to the maximum position, that is, Figure 3 When the upper side of the middle mud suction pipe 10 contacts the inner wall of the cabinet 1, the axis of the mud suction pipe 10 is line K; when the axis of the mud suction pipe 10 is vertical, the axis of the mud suction pipe 10 is line L, and the angle between line K and line L is 30 degrees. The upper end of the mud suction pipe 10 is blocked with a plate, and the lower end of the mud suction pipe 10 is open.

[0044] See Figure 4 The spiral pusher belongs to the prior art, and includes a conveying motor 12, a rotating rod 13, and a spiral blade 14 welded and fixed on the rotating rod 13. The non-rotating shaft end of the conveying motor 12 is fixedly installed on the inner upper end of the mud suction pipe 10 by bolts, and the axis of the rotating shaft of the conveying motor 12 coincides with the axis of the mud suction pipe 10. The rotating rod 13 and the spiral blade 14 are welded on the rotating shaft of the conveying motor 12 as a whole, and the axis of the rotating rod 13 coincides with the axis of the rotating shaft of the conveying motor 12. The lower end of the rotating rod 13 is close to the lower end of the mud suction pipe 10. The spiral pusher is used to assist the sludge to move from bottom to top along the mud suction pipe 10. The distance between the edge of the spiral blade 14 and the inner wall of the mud suction pipe 10 is small, about 5-10mm.

[0045] The side opening pipe 15 is fixed to the circumferential side wall of the mud suction pipe 10, and the side opening pipe 15 is located at the upper end of the mud suction pipe 10. An outlet is opened on the upper end side wall of the mud suction pipe 10, and one end of the side opening pipe 15 is connected with the mud suction pipe 10 through the outlet. From the radial direction of the mud suction pipe 10, the side opening pipe 15 is located at the position of the spiral blade 14 of the screw pusher, and the conveying motor 12 is higher than the side opening pipe 15, which is to ensure that the mud suction pump 16 described later can suck the sludge from the mud suction pipe 10 into the side opening pipe 15 without interference from the conveying motor 12.

[0046] The sludge suction pump 16 is connected to one end of the side opening pipe 15 away from the sludge suction pipe 10 through a flange. The sludge suction pipe 10 and the side opening pipe 15 serve as the suction end of the sludge suction pump 16 as a whole.

[0047] See Figure 1 and Figure 4 The hose 17 is made of a flexible material, one end of which is connected to the discharge end of the dredge suction pump 16 through a clamp or a flange, and the other end of the hose 17 extends from the side of the cabinet 1. The side of the cabinet 1 is provided with a hole for the hose 17 to pass through. The length design requirements of the hose 17 are: 1. It can meet the universal rotation of the universal ball 8, the dredge suction pipe 10, the side opening pipe 15, and the dredge suction pump 16 as a whole; 2. It can meet the purpose of extending the end of the hose 17 away from the dredge suction pump 16 to both sides of the urban ditch. During the operation of the dredge pump 16, the dredge pump 16 sucks the sludge from the lower end of the dredge suction pipe 10 into the dredge suction pipe 10, and then allows the sludge to be captured by the lower end of the spiral blade 14, and then cooperates with the rotation of the spiral blade 14, and the spiral blade 14 transports the sludge from bottom to top. Finally, under the suction of the dredge pump 16, the sludge enters the dredge pump 16 from the outlet of the side opening pipe 15, and the dredge pump 16 discharges the sludge to the hose 17, and finally, the hose 17 guides the sludge to the banks on both sides of the ditch. During the whole process, the dredge pump 16 is the main power source for the sludge to move from the lower end of the dredge suction pipe 10 to the hose 17, and the spiral pusher is used to assist the dredge pump 16 in sucking the sludge.

[0048] See Figure 4 The lifting assembly is used to move the mud suction pipe 10 along the through hole 11. The lifting assembly includes a lifting motor 18, a mounting block 19 and a lifting screw rod 20.

[0049] The non-rotating shaft end of the lifting motor 18 is fixed to the mounting surface of the universal ball 8 by bolts; the rotating shaft axis of the lifting motor 18 is parallel to the axis of the mud suction pipe 10. The lifting motor 18 is still connected to the power supply through wires, and the lifting motor 18 is also controlled by another controller to rotate forward and reverse in the same way as above, and the lifting motor 18 is controlled by a switch to start and stop.

[0050] The mounting block 19 is welded and fixed on the circumferential side wall of the mud suction pipe 10. The lifting screw 20 is welded and fixed on the rotating shaft of the lifting motor 18. The rotating shaft axis of the lifting screw 20 coincides with the rotating shaft axis of the lifting motor 18, and the upper end of the lifting screw 20 is threadedly connected to the mounting block 19. The lifting motor 18 is used to rotate the lifting screw 20. After the lifting screw 20 rotates, since the lifting motor 18 and the universal ball 8 cannot rotate around the axis of the mud suction pipe 10 as a whole, and the lifting motor 18 and the universal ball 8 cannot move vertically as a whole, the mounting block 19, the mud suction pipe 10, the side opening pipe 15, the screw pusher, and the mud suction pump 16 move along the axis of the through hole 11 as a whole.

[0051] The flexible sleeve 21 is sleeved on the lower end of the mud suction pipe 10, and the flexible sleeve 21 is tied to the mud suction pipe 10 by steel wire, which can play a buffering role when the lower end of the mud suction pipe 10 collides with the bottom of the pit, and can also prevent the screw pusher and the mud suction pump 16 from being affected by the strong impact.

[0052] A filter screen 22 is welded and fixed to the lower end of the mud suction pipe 10. In this embodiment, the mesh size of the filter screen 22 is less than 3 cm. The filter screen 22 is used to prevent the mud suction pump 16 from sucking excessive solid slag into the mud suction pipe 10, thereby preventing the blades of the mud suction pump 16 from being damaged by the solid slag.

[0053] The use of this device is as follows: First, the device is manually placed in the ditch to ensure that the device can move at the bottom of the ditch. In this embodiment, most of the silt at the bottom of the ditch has been removed by the bucket of the excavator, and only the pits and some dead corners still have silt. When it is inconvenient to remove it by the bucket of the excavator, the device is used to completely remove the silt. There is still water in the urban ditch, but the height of the water body is much lower than the height of the hose 17.

[0054] The switch of the driving mechanism 5 is manually turned on to make the device move at the bottom of the urban ditch. The forward control command is manually input through the control panel, and the controller controls the driving motors of all the driving mechanisms 5 to rotate forward to realize the forward movement of the device; or the backward control command is manually input through the control panel, and the controller controls the driving motors of all the driving mechanisms 5 to rotate reversely to realize the backward movement of the device. Similarly, the rotation command of different directions is manually input through the control panel to control the steering motors of all the steering mechanisms 2 to rotate forward or reversely to realize the change of the moving direction of the device.

[0055] By controlling the movement and steering of the device, the device and the mud suction pipe 10 are moved to the top of the pit. After the mud suction pipe 10 moves to the top of the pit, the main switches of the steering mechanism 2 and the driving mechanism 5 are disconnected respectively, and the device stops moving. After power failure, the device is locked and remains in place.

[0056] Then, the command to lower the mud suction pipe 10 is manually input through the control panel of the lifting motor 18, and the controller controls the lifting motor 18 to rotate forward. The lifting motor 18 uses the lifting screw 20 to move the mounting block 19, the mud suction pipe 10, the side opening pipe 15, the spiral pusher, and the mud suction pump 16 downward as a whole. Finally, the user observes that the flexible sleeve 21 is in contact with the bottom of the groove, such as: after hearing the sound of the mud suction pipe 10 hitting the bottom of the pit, at this time, a stop command is manually issued through the control panel of the lifting motor 18, and the controller controls the lifting motor 18 to stop. Due to the different shapes of the pit bottom, the bottom of the flexible sleeve 21 cannot be sealed with the bottom of the pit, and under the reaction force of the pit bottom, the flexible sleeve 21 and the mud suction pipe 10 as a whole will inevitably cause the universal ball 8, the mud suction pipe 10, the side opening pipe 15, the spiral pusher, the mud suction pump 16, etc. to rotate universally as a whole in order to cater to the shape of the pit bottom, that is, Figure 3 During this process, the universal ball 8 rotates in the universal groove 7.

[0057] Then, the sludge suction pump 16 and the screw propeller are manually turned on, and the sludge suction pump 16 sucks the sludge to the hose 17, and finally discharges it to the banks on both sides of the town ditch from the hose 17. The screw propeller assists the sludge suction pump 16 to transport the sludge from bottom to top. After observing that the sludge in the pit has been basically sucked out, the corresponding switches are manually turned off to stop the screw propeller and the sludge suction pump 16.

[0058] Finally, the command to raise the mud suction pipe 10 is manually input through the control panel of the lifting motor 18, and the controller controls the lifting motor 18 to reverse. The lifting motor 18 resets the mounting block 19, the mud suction pipe 10, the side opening pipe 15, the spiral pusher, and the mud suction pump 16 as a whole. The number of reset rotations of the mud suction pipe 10 is set by the program. After resetting, the lifting motor 18 stops automatically.

[0059] Then, the device is moved and turned again in the manner described above, and when the device reaches the next pit position, the sludge in the next pit is processed until the processing of the pit sludge in the entire town ditch is completed.

[0060] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A dredging device for a water conservancy project, characterized in that: It comprises a cabinet (1), wherein a plurality of walking components are arranged on the bottom surface of the cabinet (1), and the dredging device can move by relying on the walking components; A mud suction pipe (10) and a lifting assembly for lifting the mud suction pipe (10) are provided in the cabinet (1); the upper end of the mud suction pipe (10) is blocked, and the lower end of the mud suction pipe (10) extends out of the cabinet (1); A side opening pipe (15) is fixedly connected to the side surface of the upper end of the mud suction pipe (10); the side opening pipe (15) is in communication with the mud suction pipe (10); one end of the side opening pipe (15) away from the mud suction pipe (10) is connected to a mud suction pump (16); the mud suction pipe (10) and the side opening pipe (15) together serve as the suction end of the mud suction pump (16); the discharge end of the mud suction pump (16) is connected to a hose (17); and the hose (17) extends out of the cabinet (1) from the side of the cabinet (1).

2. A water conservancy project dredging device according to claim 1, characterized in that: The cabinet (1) is fixedly connected with a connection seat (6), a universal groove (7) is provided on the connection seat (6), the shape of the universal groove (7) is a non-complete spherical shape, a universal ball (8) is provided in the universal groove (7), and the center of the universal ball (8) coincides with the center of the universal groove (7); a through hole (11) is provided on the universal ball (8), and the universal ball (8) is movably sleeved on the mud suction pipe (10) through the through hole (11); the mud suction pipe (10) and the universal ball (8) can rotate as a whole relative to the universal groove (7); two avoidance grooves (23) are provided on the connection seat (6), and the two avoidance grooves (23) are respectively located at the upper end and the lower end of the universal groove (7), and the two avoidance grooves (23) are connected to the universal groove (7) to form a connection groove, and the upper end and the lower end of the mud suction pipe (10) both pass through the connection groove; the lifting component is installed on the universal ball (8).

3. A water conservancy project dredging device according to claim 2, characterized in that: The lifting assembly comprises a lifting motor (18), a mounting block (19) and a lifting screw (20); the non-rotating shaft end of the lifting motor (18) is fixedly connected to the upper end of the universal ball (8), and the rotating shaft is arranged parallel to the axis of the mud suction pipe (10); the mounting block (19) is fixedly connected to the circumferential side wall of the mud suction pipe (10) and is located above the connecting groove, and a threaded through hole is opened on the mounting block (19) in a direction parallel to the axis of the mud suction pipe (10); the lower end of the lifting screw (20) is fixedly connected to the rotating shaft of the lifting motor (18), and the rotating shaft of the lifting motor (18) coincides with the rotating shaft of the lifting screw (20), and the upper end of the lifting screw (20) is threadedly connected to the mounting block (19) through the threaded through hole.

4. A water conservancy project dredging device according to claim 3, characterized in that: The outer wall of the universal ball (8) is provided with a plurality of grooves, and the plurality of grooves are densely distributed on the outer surface of the universal ball (8); a ball (9) is movably adapted and embedded in each groove, and the ball (9) can rotate relative to the universal ball, a part of the ball (9) is in the groove, and the other part is exposed outside the groove, and the part of the ball (9) exposed outside the groove is in single-point contact with the inner wall of the universal groove (7).

5. A water conservancy project dredging device according to claim 4, characterized in that: The surface area of ​​the groove is greater than half the surface area of ​​the ball (9).

6. A water conservancy project dredging device according to claim 5, characterized in that: The mud suction pipe (10) is provided with a screw pusher; the rotating rod (13) of the screw pusher coincides with the axis of the mud suction pipe (10), and the conveying motor (12) of the screw pusher is located at the top of the mud suction pipe.

7. A hydraulic engineering silt removal device according to claim 6, characterized in that: The lower end of the mud suction pipe (10) is connected to a filter screen (22), and the filter screen (22) is located below the end of the rotating rod (13) of the screw pusher.

8. A hydraulic engineering silt removal device according to claim 7, characterized in that: A flexible sleeve (21) is fixedly connected to the end of the mud suction pipe (10).

9. A water conservancy project dredging device according to claim 8, characterized in that: The axis of the mud suction pipe (10) passes through the center of the universal ball (8).

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