An automatic dredging device for sponge cities

Abstract

The present invention discloses an automatic silt-clearing device for sponge cities, belonging to the technical field of sponge city equipment. The device is characterized by comprising a power unit, a worm gear reducer, a commutator, a rope roller, a push plate, a lifting hopper, and a reservoir. The power unit is sequentially connected to the worm gear reducer, the commutator, and the rope roller, and ropes are used to drive the push plate and the lifting hopper, respectively. The lifting hopper is located in a corner of the reservoir. There are two push plates, each moving perpendicularly toward the lifting hopper. The reservoir is located outside the upper sidewall of the lifting hopper. A feed port is provided between the reservoir and the water reservoir, and a flap is provided on the lower edge of the feed port. Compared with existing technologies, the device can automatically clear silt from the bottom of the reservoir.

Description

Technical Field

[0001] The present invention relates to a sponge city equipment technology, in particular to an automatic silt removal device suitable for a sponge city water reservoir. Background Art

[0002] The sponge city is a new generation of urban stormwater management concepts. It describes a city's ability to adapt to environmental changes and cope with natural disasters caused by rainwater, just like a sponge. It's also known as a "water-resilient city." Sponge cities address urban flooding by implementing diverse and decentralized water storage and drainage facilities. Furthermore, sponge cities can effectively utilize natural rainfall, reducing a city's water resource costs.

[0003] Reservoirs are essential facilities for sponge cities to regulate rainwater and floodwater. During their use, the water entering a sponge city's reservoirs inevitably becomes contaminated with debris, such as sand and garbage. This can easily lead to the accumulation of silt. Regular desilting of reservoirs is a routine task in municipal management. This desilting process is often performed manually, which is time-consuming and labor-intensive, impacting desilting efficiency. Summary of the Invention

[0004] The technical task of the present invention is to provide a sponge city automatic dredging device to address the deficiencies of the above existing technologies.

[0005] The technical solution of the present invention to solve its technical problem is: a sponge city automatic silt removal device, characterized in that it includes a power unit, a worm gear reducer, a commutator, a rope roller, a push plate, a lifting hopper and a storage tank; the power unit is connected to the worm gear reducer and the commutator in sequence and drives them to rotate; the commutator main shaft is connected to the rope roller, the rope roller includes multiple sections, each section of the rope roller is wound with a rope, and the ropes respectively drive the push plate and the lifting hopper to move; two of the ropes are provided with a protruding structure, and the winding directions of the two ropes with the protruding structure on the rope roller are opposite. The ropes provided with the raised structure pass through a cylinder respectively, the inner diameter of the cylinder is larger than the diameter of the rope body and smaller than the diameter of the raised structure; a pull rope is connected to each of the two cylinders, and the other ends of the two pull ropes are connected to the commutator respectively, and the pulling directions of the two pull ropes are opposite; the lifting hopper is located in a corner of the water reservoir, and a groove for accommodating the lifting hopper is provided at the bottom of the water reservoir. The lifting hopper is located in the groove, and a rope is provided on the lifting hopper, which can be lifted upward by the rope, and one end of the rope is located on the rope roller; the pushing plate has two, and the movement direction The two rollers are perpendicular to each other and face the direction of the lifting hopper respectively; the pushing plate is driven by a rope, including a rope for pulling forward and a rope for pulling backward, and the two sets of ropes rotate in opposite directions on the rope rollers, so when the rope rollers rotate, one set of ropes is tightened and the other set of ropes is released at the same time; the storage tank is located on the outer side of the side wall above the lifting hopper; a feeding port is provided between the storage tank and the water reservoir; a flap is provided on the lower edge of the feeding port; a fulcrum is provided on the lower side of the flap, and the flap can be flipped back and forth through the fulcrum; through the action of gravity or elastic force, when it is in a natural state, the rear end of the flap is at the bottom and the front is at the bottom. The end is tilted upward; a push rod is provided at the rear end of the flap, and the rear end of the push rod is tilted backward and upward; in the natural state, after the lifting hopper is lifted upward, the front edge of the lifting hopper will not touch the rear end of the flap, but will be pressed against the rear end of the push rod. When the lifting hopper rises, the push rod will be pushed upward, and then the rear end of the flap will be flipped upward; a hook is provided below the front edge of the lifting hopper, and a hole is provided at the front end of the flap; when the lifting hopper moves upward, the push rod is first pushed upward by the front edge of the lifting hopper, driving the rear edge of the flap to be lifted backward and upward first, and the hook of the lifting hopper is hooked on the hole of the flap.

[0006] The above-mentioned power device is a water turbine, which is placed at the water inlet of the reservoir. When water enters, the water flow impacts the water turbine, driving the water turbine to rotate.

[0007] The above-mentioned commutator includes three bevel gears, a main shaft, a spline hub, a change-direction fork, a change-direction rod and a push-pull rod; the three bevel gears include a driving bevel gear and two passive bevel gears; the driving bevel gear is connected to the input shaft of the commutator, and the two passive bevel gears are respectively meshed with the driving bevel gear, the axes of the driving bevel gear and the passive bevel gear are perpendicular, and the axes of the two passive bevel gears coincide and are arranged oppositely; the middle of the two passive bevel gears is a hollow cylindrical structure, the main shaft passes through the middle cavity of the two passive bevel gears, and the axis of the main shaft coincides with the axes of the two passive bevel gears; the position of the main shaft between the two passive bevel gears is a spline Key structure, the spline hub matches the spline structure, and the spline hub is located on the spline; teeth are respectively provided on both end surfaces of the spline hub, and the two passive bevel gears are also provided with matching teeth on the side facing the spline hub, and one of the passive bevel gears is meshed with the teeth on the spline hub; the changing fork is clamped on the spline hub, and the spline hub is pushed to move left and right along the main shaft through the changing fork; the changing rod is fixed on the changing fork, used to drive the changing fork to move; a magnet is provided on each side of the changing fork, and the changing fork is adsorbed on one of the magnets through the action of the magnet; the changing rod is connected to the push-pull rod through a spring.

[0008] The push plate is placed at an angle, with one side edge of the push plate facing the lifting hopper being attached to the ground, and the other side edge of the push plate away from the lifting hopper being tilted upward to a certain height.

[0009] The above-mentioned storage tank and water reservoir are constructed with permeable materials.

[0010] Compared with the prior art, the present invention has the following outstanding beneficial effects:

[0011] 1. It can automatically clean the silt at the bottom of the pool, saving time and effort;

[0012] 2. The power of the equipment comes from water flow, and no energy consumption is required;

[0013] 3. Power is transmitted through ropes, which is low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic top view of the present invention.

[0015] Figure 2 It is a schematic diagram of the lateral structure of the present invention, in which the size of the water reservoir has been reduced to make the structure intuitive and compact.

[0016] Figure 3 It is a schematic structural diagram of a water turbine of the present invention.

[0017] Figure 4It is a schematic diagram of the internal structure of the commutator of the present invention.

[0018] Figure 5 It is a schematic diagram of the rope roller structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the working state of the lifting hopper of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 6 As shown, the present invention includes a power device, a worm gear reduction box 7, a commutator 8, a rope roller 6, a push plate 2, a lifting hopper 4 and a storage tank 5.

[0022] The power unit is a turbine 9, which is placed at the water inlet of the reservoir 1. When water enters, the water flow impacts the turbine 9, driving the turbine 9 to rotate and providing power for the dredging device. The rotating shaft of the turbine 9 is connected in sequence to the worm gear reducer 7 and the commutator 8. The worm gear reducer 7 has the functions of increasing torque and providing a self-locking function to prevent reverse rotation.

[0023] The structure of the commutator 8 is as follows: Figure 4As shown, the interior includes three bevel gears, a main shaft 19, a spline hub 23, a change-direction fork 14, a change-direction rod 15 and a push-pull rod 17. The three bevel gears include a driving bevel gear 21 and two passive bevel gears 20. The driving bevel gear 21 is connected to the input shaft 22 of the commutator 8, and the two passive bevel gears 20 are respectively engaged with the driving bevel gear 21. The axes of the driving bevel gear 21 and the passive bevel gear 20 are perpendicular to each other, and the axes of the two passive bevel gears 20 coincide and are arranged opposite to each other. The two passive bevel gears 20 can be driven to rotate synchronously by the driving bevel gear 21, and the directions of the two passive bevel gears 20 are opposite. The middle of the two passive bevel gears 20 is a hollow cylindrical structure, and the main shaft 19 passes through the middle cavity of the two passive bevel gears 20. The axis of the main shaft 19 coincides with the axes of the two passive bevel gears 20, and the main shaft 19 and the passive bevel gears 20 can rotate freely. The main shaft 19 has a spline structure located between the two passive bevel gears 20. The spline hub 23 mates with this spline structure and is positioned on this spline, allowing the spline hub 23 to move freely axially on the main shaft 19. The spline hub 23 has teeth on each end, and the two passive bevel gears 20 also have matching teeth on the side facing the spline hub 23. When one of the passive bevel gears 20 engages with the teeth on the spline hub 23, the spline hub 23 is driven by the gear 20, which in turn drives the main shaft 19. The direction-changing fork 14 is engaged with the spline hub 23, pushing the spline hub 23 left and right along the main shaft 19, thereby switching the meshing passive bevel gear 20. After switching the passive bevel gear 20, the two passive bevel gears 20 rotate in opposite directions, so the direction of the spline hub 23 and the main shaft 19 also change. The direction-changing rod 15 is fixed on the reversing fork 14 and is used to drive the reversing fork 14 to move.

[0024] When the spline hub 23 moves to the middle of the two passive bevel gears 20, it will disengage from the two passive bevel gears 20 at the same time. In actual work, this situation should be avoided, so certain technical means should be used to prevent the spline hub 23 from staying stably in the middle position. A magnet 13 is provided on each side of the said change-direction fork 14. Through the action of the magnet 13, the change-direction fork 14 is attracted to one of the magnets 13 respectively, thereby preventing the change-direction fork 14 from staying in the middle position. The said change-direction rod 15 is connected to the said push-pull rod 17 through a spring 16. When the push-pull rod 17 is pushed or pulled, the elastic force of the spring 16 pushes or pulls the change-direction rod 15 to move. When the elastic force of the spring 16 overcomes the magnetic force of the magnet 13, the rod moves to the other side, thereby achieving the effect of reversing and preventing the spline hub 23 from being disengaged from the two passive bevel gears 20 at the same time for a long time.

[0025] The commutator main shaft 19 is connected to the rope roller 6, which includes multiple sections. A rope 3 is wound around each section of the rope roller 6, and the rope 3 drives the push plate 2 and the lifting hopper 4 to move. Figure 5 As shown, two of the ropes 3 are equipped with protrusions 25. These protrusions 25 increase the diameter of the ropes 3 at that location relative to the main body of the ropes 3. The two ropes 3 with protrusions 25 are wound in opposite directions around the rope roller 6. Each rope 3 with a protrusion 25 passes through a cylinder 24, the inner diameter of which is larger than the main body diameter of the rope 3 but smaller than the diameter of the protrusion 25. A pull rope 18 is connected to each cylinder 24. The other ends of the two pull ropes 18 are connected to push-pull rods 17, respectively. The two pull ropes 18 pull the push-pull rods 17 in opposite directions. When the rope roller 6 rotates forward, after a certain rotation distance, the raised structure 25 on one rope 3 moves to the cylinder 24 and pulls the cylinder 24. The cylinder 24, through the pull rope 18, pulls the push-pull rod 17, causing the commutator 8 to change the direction of the main shaft 19, and the main shaft 19 drives the rope roller 6 in the reverse direction. After the rope roller 6 has reversed to a certain distance, the raised structure 25 on the other rope 3 moves to the corresponding cylinder 24 and pulls the cylinder 24. The pull rope 18 pulls the push-pull rod 17 in the reverse direction, causing the rotation direction of the main shaft 19 of the commutator 8 to change again. This structure achieves the purpose of the back-and-forth rotation of the rope roller 6. The back-and-forth rotation of the rope roller 6 drives the push plate 2 to move back and forth, and the lifting hopper 4 to move up and down.

[0026] like Figure 1 、 2 As shown, the lifting hopper 4 is located in a corner of the water reservoir 1. A groove for accommodating the lifting hopper 4 is provided at the bottom of the water reservoir 1. The lifting hopper 4 is located in the groove. A rope 3 is provided on the lifting hopper 4. The lifting hopper 4 can be lifted upward by the rope 3. One end of the rope 3 is located on the rope roller 6. There are two push plates 2, which move in perpendicular directions to each other and push the silt toward the lifting hopper 4 until the silt is pushed into the lifting hopper 4. Figure 2 As shown, the push plate 2 is tilted, with the edge of the push plate 2 facing the lifting hopper 4 resting on the ground, and the edge of the push plate 2 facing away from the lifting hopper 4 tilted upward a certain height. When pushed forward, it pushes away the mud on the ground; when returning backward, the mud on the ground raises the push plate 2 to a certain height, allowing the push plate 2 to slide over the mud. The push plate 2 is driven by ropes 3, including a forward-pulling rope 3 and a backward-pulling rope 3. The two sets of ropes 3 rotate in opposite directions on the rope roller 6. Therefore, when the rope roller 6 rotates, one set of ropes 3 is tightened, while the other set of ropes 3 is simultaneously released.

[0027] The reservoir 5 is located outside the upper sidewall of the lifting hopper 4. A feed inlet is located between the reservoir 5 and the water reservoir 1. A flap 11 is located on the lower edge of the feed inlet. For ease of description, the end of the flap 11 facing the water reservoir 1 is referred to as the rear end, with the direction toward the reservoir 1 being the rear. The end of the flap 11 facing the reservoir 5 is referred to as the front end, with the direction toward the reservoir 5 being the front.

[0028] A fulcrum is provided on the lower side of the flap 11, through which the flap 11 can be flipped back and forth. When it is in its natural state, the rear end of the flap 11 is at the bottom and the front end is tilted upward. Figure 6 As shown, the rear end of the flap 11 is provided with a push rod 27, and the rear end of the push rod 27 is tilted backward and upward. In the natural state, after the lifting hopper 4 is lifted upward, the front edge of the lifting hopper 4 will not touch the rear end of the flap 11, but will hit the rear end of the push rod 27. When the lifting hopper 4 rises, it will push the push rod 27 upward, and then flip the rear end of the flap 11 upward. A hook 26 is provided below the front edge of the lifting hopper 4, and a hole 10 is provided at the front end of the flap 11. Figure 6 As shown, when the lifting hopper 4 moves upward, the front edge of the lifting hopper 4 first pushes the top rod 27 upward, driving the rear edge of the flap 11 to first lift backward and upward. The hook 26 of the lifting hopper 4 hooks on the hole 10 of the flap 11. The lifting hopper 4 then continues to rise until the lifting hopper 4 and the flap 11 are pulled to a state where the rear is higher and the front is lower. Under the action of gravity, the sludge in the lifting hopper 4 slides forward onto the flap 11, and then continues to slide backward on the flap 11 into the storage tank 5. The lifting hopper 4 then falls back.

[0029] The reservoir 5 is constructed with permeable material between it and the water reservoir 1. When the lifting hopper 4 dumps sludge into the reservoir 5, it inevitably carries water with it. The water in the reservoir 5 seeps through the permeable material into the soil or the water reservoir 1. A cover 12 is installed above the reservoir 5. After a period of time, workers can open the cover 12 and remove the sludge in the reservoir 5 using an excavator or other equipment.

[0030] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to it without departing from the spirit and scope of the present invention are within the scope of protection of the present invention.

Claims

1. A sponge city automatic dredging device, characterized by: It includes a power unit, a worm gear reducer, a commutator, a rope roller, a push plate, a lifting hopper, and a storage tank. The power unit is sequentially connected to the worm gear reducer and the commutator to drive their rotation. The commutator includes three bevel gears, a main shaft, a spline hub, a direction-changing fork, a direction-changing rod, and a push-pull rod. The three bevel gears include a driving bevel gear and two passive bevel gears. The driving bevel gear is connected to the input shaft of the commutator, and the two passive bevel gears mesh with the driving bevel gear respectively. The axes of the driving bevel gear and the passive bevel gears are perpendicular, and the axes of the two passive bevel gears coincide with each other. The two passive bevel gears have a hollow cylindrical structure in the middle. The main shaft passes through the middle cavity of the two passive bevel gears, and the axis of the main shaft coincides with the axes of the two passive bevel gears. The main shaft is located between the two passive bevel gears, which is a spline structure. The spline hub matches the spline structure, and the spline hub is located on the spline. Teeth are provided on both end faces of the spline hub, and matching teeth are also provided on the side of the two passive bevel gears facing the spline hub. One of the passive bevel gears is meshed with the teeth on the spline hub. The direction-changing fork is clamped on the spline hub, and the spline hub is pushed to move left and right along the main shaft through the direction-changing fork. The direction-changing rod is fixed on the direction-changing fork to drive the direction-changing fork to move. A magnet is provided on each side of the direction-changing fork, and the direction-changing fork is engaged with one of the magnets. Magnet adsorption; the direction-changing rod is connected to the push-pull rod through a spring, and the commutator main shaft is connected to the rope roller. The rope roller consists of multiple sections, and a rope is wound around each rope roller. The ropes drive the push plate and the lifting hopper to move respectively. Two of the ropes are provided with a protrusion structure, and the two ropes with the protrusion structure are wound in opposite directions on the rope roller. The ropes with the protrusion structure each pass through a cylinder, and the inner diameter of the cylinder is larger than the diameter of the rope body and smaller than the diameter of the protrusion structure. A pull rope is connected to each of the two cylinders, and the other ends of the two pull ropes are connected to the commutator respectively. The pulling directions of the two pull ropes are opposite. The lifting hopper is located in a corner of the water reservoir. A groove for accommodating the lifting hopper is provided at the bottom of the water reservoir. The lifting hopper is located in the groove. A rope is provided on the lifting hopper, which can be lifted upward by the rope. One end of the rope is located on the rope roller. There are two push plates, and their movement directions are perpendicular to each other, facing the direction of the lifting hopper respectively. The push plates are driven by ropes, including ropes for pulling forward and ropes for pulling backward. The two sets of ropes rotate in opposite directions on the rope rollers, so when the rope rollers rotate, one set of ropes is tightened and the other set of ropes is released at the same time. The storage tank is located on the outside of the side wall above the lifting hopper. A feeding port is provided between the storage tank and the water reservoir. A flap is provided on the lower edge of the feeding port. A fulcrum is provided on the lower side of the flap. , the flap can be flipped back and forth through the fulcrum; through the action of gravity or elastic force, when it is in a natural state, the rear end of the flap is at the bottom and the front end is tilted upward; a push rod is provided at the rear end of the flap, and the rear end of the push rod is tilted backward and upward; in the natural state, after the lifting hopper rises upward, the front edge of the lifting hopper will not touch the rear end of the flap, but will hit the rear end of the push rod, and when the lifting hopper rises, the push rod will be pushed upward, and then the rear end of the flap will be flipped upward; a hook is provided below the front edge of the lifting hopper, and a hole is provided at the front end of the flap; when the lifting hopper moves upward, the push rod is first pushed upward by the front edge of the lifting hopper, driving the rear edge of the flap to rise backward and upward first, and the hook of the lifting hopper is hooked on the hole of the flap.

2. The automatic silt removal device for sponge cities according to claim 1, characterized in that: The power device is a turbine, which is placed at the water inlet of the reservoir. When water enters, the water flow impacts the turbine, driving the turbine to rotate.

3. The automatic silt removal device for sponge cities according to claim 1 is characterized in that: The push plate is placed obliquely, with one side edge of the push plate facing the lifting hopper being attached to the ground, and the other side edge of the push plate away from the lifting hopper being tilted upward to a certain height.

4. The automatic silt removal device for sponge cities according to claim 1, characterized in that: The space between the storage tank and the water reservoir is constructed with permeable materials.

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