Water level monitoring equipment for water conservancy surveying and mapping

Abstract

The invention relates to the technical field of water level monitoring of water conservancy, and discloses water level monitoring equipment for surveying and mapping of water conservancy, which comprises a vertical rod, a control box, a solar panel, a camera and a mounting frame are detachably mounted on the vertical rod, and an equipment box is arranged at the top of the mounting frame. During use, the water level can be monitored in real time through cooperation of the water level sensor and the floater, after long-time use, the lifting frame is driven by the lifting mechanism to move downwards, and the inner wall of the measuring cylinder is cleaned through the inner wall cleaning mechanism in the downward movement process of the lifting frame; and when the lifting frame descends to a set position, the balance hole can be dredged through the hole cleaning mechanism, and when the lifting frame moves downwards to the bottom end of the measuring cylinder, the foreign matter is discharged through the action of water flow, so that the foreign matter is prevented from being left in the measuring cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy water level monitoring, and more particularly to a water level monitoring device for water conservancy surveying and mapping. Background Art

[0002] Accurate water conservancy water level monitoring is a core technology in the fields of scientific management of water resources, flood prevention and disaster reduction decision-making, farmland irrigation scheduling, etc. Currently, the float water level monitoring device is widely used in river water level monitoring. It realizes the dynamic acquisition of water level data by real-time sensing the position change of the float in the measuring cylinder.

[0003] However, in actual application scenarios, the rich biodiversity of the river ecosystem poses challenges to this technology. During the long-term operation process, a large number of microorganisms and algae will gradually adhere to the inner wall of the measuring cylinder, forming a biofilm. This biological attachment not only changes the surface roughness of the cylinder wall, but also generates additional frictional resistance during the lifting and lowering of the float, resulting in the float getting stuck in motion and having a lag in response. This not only affects the timeliness and accuracy of the monitoring data, but may also cause decision-making mistakes due to data delay during critical periods such as flood seasons, seriously weakening the disaster prevention and mitigation effectiveness of the water level monitoring system. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a water level monitoring device for water conservancy surveying and mapping to solve the problems existing in the above-mentioned background art.

[0005] The present invention provides the following technical solution: A water level monitoring device for water conservancy surveying and mapping, including a vertical pole, on which a control box, a solar panel, a camera, and a mounting bracket are detachably installed. The top of the mounting bracket is provided with an equipment box, the bottom of the equipment box is fixedly installed with a measuring cylinder, a measuring mechanism is arranged inside the measuring cylinder, the measuring mechanism includes a water level sensor, the water level sensor is arranged inside the measuring cylinder, and a float is slidably sleeved outside the water level sensor; An elevating frame is movably arranged inside the measuring cylinder. The elevating frame is circular. An elevating mechanism is arranged on the outer wall of the elevating frame, and the elevating mechanism is used to drive the elevating frame to realize the elevating function. An inner wall cleaning mechanism is arranged at the bottom of the elevating frame. The inner wall cleaning mechanism includes a filter cylinder and a plurality of scraping blades. The filter cylinder is fixedly installed at the bottom of the elevating frame, and a plurality of the scraping blades are all movably arranged at the bottom of the elevating frame. The scraping blades are located outside the filter cylinder, and a plurality of scraping blades are arranged around the filter cylinder. The float can slide through the elevating frame; A plurality of balance holes are opened on the measuring cylinder, and a hole cleaning mechanism is arranged inside the elevating frame. The hole cleaning mechanism includes two dredging shafts, and both of the dredging shafts are slidably installed inside the elevating frame and are respectively adapted to a plurality of the balance holes.

[0006] Further, the lifting mechanism includes two arc-shaped lifting blocks. Axial lifting grooves are formed in the inner wall of the measuring cylinder. The two arc-shaped lifting blocks are respectively slidably installed in the two lifting grooves. The two arc-shaped lifting blocks are fixedly connected to the circumferential outer wall of the lifting frame. Connection holes and sliding holes are formed at the tops of the two arc-shaped lifting blocks. Steel wires are fixedly installed in the two connection holes. The two steel wires are respectively slidably connected to the two sliding holes. Rotating shafts are rotatably installed in the two lifting grooves. Fixed pulleys are fixedly sleeved on the two rotating shafts. The two steel wires bypass the two fixed pulleys.

[0007] Further, the lifting mechanism further includes a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are both fixedly installed in the equipment box. Two wire pay-off shafts are rotatably installed on the first fixing plate. Wire pay-off rollers are fixedly sleeved on the two wire pay-off shafts. One ends of the two steel wires are respectively wound around the two wire pay-off rollers. Two wire take-up shafts are rotatably installed on the side of the second fixing plate. Wire take-up rollers are fixedly sleeved on the two wire take-up shafts. The other ends of the two steel wires are respectively wound around the two wire take-up rollers. A transmission component is connected between the two wire take-up shafts and the two wire take-up rollers.

[0008] Further, the transmission component includes two synchronous belt pulleys. The two synchronous belt pulleys are respectively fixedly sleeved on the two wire pay-off shafts. The two synchronous belt pulleys are connected by a synchronous belt. A control motor is fixedly installed on the side of the first fixing plate. The output shaft of the control motor is connected to the end of one of the wire pay-off shafts.

[0009] Further, the transmission component further includes two support frames. The two support frames are both fixedly installed at the bottom of the equipment box. The other ends of the two wire pay-off shafts and one ends of the two wire take-up shafts are respectively rotatably installed on the two support frames. Linkage gears are fixedly sleeved outside the two wire pay-off shafts and the two wire take-up shafts. The two linkage gears on the same side are meshed with each other.

[0010] Further, the inner wall cleaning mechanism further includes an annular rotating plate. A lower annular cavity is formed in the lifting frame. An annular groove is formed at the bottom of the lower annular cavity. The annular rotating plate is rotatably installed in the annular groove. A plurality of scraping blades are fixedly installed at the bottom of the annular rotating plate. A spline shaft sleeve and a rotating rod are rotatably installed in the lifting frame. Transmission gears are fixedly sleeved on the outer walls of the spline shaft sleeve and the rotating rod. An annular rack meshing with the two transmission gears is fixedly installed on the inner wall of the annular rotating plate. Cams are fixedly sleeved on the outer walls of the spline shaft sleeve and the rotating rod.

[0011] Further, the inner wall cleaning mechanism further includes a spline sleeve rotatably installed at the top of the measuring cylinder. A driving motor is fixedly installed on the bottom inner wall of the equipment box, and the output shaft of the driving motor is fixedly connected to the end of the spline sleeve. A spline shaft is slidably installed in the spline sleeve, and the spline shaft is slidably connected to the spline shaft sleeve.

[0012] Further, the hole cleaning mechanism further includes two pressing plates. Two upper cavities are formed in the lifting frame, and the two pressing plates are respectively slidably installed in the two upper cavities. Limiting grooves are formed in the inner walls of the two upper cavities, and limiting sliders are slidably installed in the limiting grooves. The limiting sliders are fixedly connected to the corresponding pressing plates. Telescopic shafts are fixedly installed on the sides of the two pressing plates away from each other. Telescopic grooves are formed at the ends of the two dredging shafts, and the two telescopic shafts are respectively slidably installed in the two telescopic grooves. Avoidance springs are fixedly installed at the ends of the two telescopic shafts, and the other ends of the avoidance springs are fixedly installed on the side inner walls of the telescopic grooves. Compression springs are sleeved on the circumferential outer walls of the telescopic shafts and the dredging shafts together.

[0013] Further, a bottom cover is detachably installed at the bottom end of the measuring cylinder. Two arc-shaped holes are formed in the outer wall of the measuring cylinder. A U-shaped plate is slidably sleeved on the water level sensor. Both sides of the U-shaped plate are arc-shaped. A plurality of through holes are formed on both sides of the U-shaped plate. Two round holes are formed at the bottom ends of the measuring cylinder and the bottom cover respectively. Slide rods are slidably installed in the two round holes, and the top ends of the two slide rods are fixedly installed on the bottom inner wall of the U-shaped plate. Two round grooves are formed at the bottom end of the measuring cylinder, and return springs are sleeved on the circumferential outer walls of the two slide rods.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: 1. When the spline shaft rotates, through the connection with the spline shaft sleeve, it drives the spline shaft sleeve to achieve synchronous rotation function, and then drives the annular rotating plate to rotate through the transmission gear and the annular rack. When the annular rotating plate rotates, it can drive a plurality of scrapers to rotate synchronously, clean the inner wall of the measuring cylinder through the plurality of scrapers, and remove the foreign objects attached to the inner wall of the measuring cylinder. Through the setting of the filter cylinder, it can block the cleaned foreign objects, so that the foreign objects remain between the inner wall of the measuring cylinder and the outer wall of the filter cylinder, and avoid the cleaned foreign objects floating to the water surface above the measuring cylinder.

[0015] 2. Through the meshing of the transmission gear and the annular rack, the spline shaft sleeve and the rotating rod can rotate synchronously, and then drive the two cams to rotate. The cams squeeze the pressing plates, so that the pressing plates drive the telescopic shafts and the dredging shafts to move horizontally into the balance holes synchronously during movement, and the dredging shafts clean the foreign objects in the balance holes, thereby realizing the cleaning function of the balance holes.

[0016] 3. The lifting frame moves downward until the filter cartridge contacts the U-shaped plate and squeezes it, causing it to move downward. When the U-shaped plate moves downward, the closure of the two arc-shaped holes is released, so that foreign objects located between the outer wall of the filter cartridge and the inner wall of the measuring cylinder are discharged outward into the river under the action of water flow, avoiding the remaining foreign objects after cleaning from staying in the measuring cylinder and continuing to breed. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of this embodiment; Figure 2 is a schematic structural diagram of the connection of the equipment box, measuring cylinder, and bottom cover in this embodiment; Figure 3 is a schematic diagram of a partial cross-sectional structure of the measuring cylinder in this embodiment; Figure 4 is Figure 3 an enlarged structural diagram of part A in Figure 5 is a schematic diagram of a partial cross-sectional structure of the equipment box, first fixing plate, and support frame in this embodiment; Figure 6 is Figure 5 an enlarged structural diagram of part B in Figure 7 is a schematic diagram of an enlarged partial cross-sectional structure of the measuring cylinder and U-shaped plate in this embodiment; Figure 8 is a schematic diagram of a partial cross-sectional structure of the lifting frame, annular rotating plate, and annular rack in this embodiment; Figure 9 is Figure 8 an enlarged structural diagram of part C in Figure 10 is a schematic diagram of a cross-sectional structure of the dredging shaft in this embodiment.

[0018] The reference numerals are: 1, vertical pole; 2, control box; 3, solar panel; 4, camera; 5, mounting bracket; 6, equipment box; 7, measuring cylinder; 8, water level sensor; 9, float; 10, lifting frame; 11, lifting groove; 12, arc-shaped lifting block; 13, steel wire rope; 14, wire reel; 15, synchronous pulley; 16, wire releasing roller; 17, winding roller; 18, support frame; 19, winding shaft; 20, linkage gear; 21, protection groove; 22, rotating shaft; 23, fixed pulley; 24, bottom cover; 25, U-shaped plate; 26, slide bar; 27, return spring; 28, filter cylinder; 29, scraper; 30, spline bushing; 31, lower annular cavity; 32, upper cavity; 33, annular rotating plate; 34, gasket; 35, transmission gear; 36, annular rack; 37, balance hole; 38, extrusion plate; 39, limit slider; 40, cam; 41, dredging shaft; 42, telescopic shaft; 43, avoidance spring; 44, compression spring; 45, rotating rod; 46, spline sleeve; 47, spline shaft; 48, drive motor; 49, power supply; 50, PLC controller; 51, control motor; 52, first fixing plate; 53, second fixing plate. Detailed implementation manners

[0019] The present invention will be further described below in conjunction with specific embodiments. However, those skilled in the art should understand that the detailed description given here in conjunction with the accompanying drawings is for better explanation. The structure of the present invention necessarily goes beyond these limited embodiments, and for some equivalent replacement schemes or common means, no detailed description will be given herein, but they still fall within the protection scope of this application.

[0020] Figures 1 - 10 This is the best embodiment of the present invention. The following will further describe the present invention in conjunction with the attached Figures 1 - 10 drawings.

[0021] Refer to the attached Figures 1 - 10, A water level monitoring device for hydraulic surveying and mapping, including a vertical pole 1, on which a control box 2, a solar panel 3, a camera 4, and a mounting bracket 5 are detachably installed. Specifically, an RTU telemetry terminal is provided inside the control box 2, and real-time data is stably transmitted to a computer through the RTU telemetry terminal to achieve real-time monitoring. The solar panel 3 and the camera 4 are both existing technologies, and their specific installation methods and working principles will not be elaborated here. More specifically, the camera 4 can be a spherical camera to achieve 360-degree panoramic shooting. A device box 6 is provided at the top of the mounting bracket 5. Specifically, a power supply 49 and a PLC controller 50 are fixedly installed on the inner wall of the device box 6. A measuring cylinder 7 is fixedly installed at the bottom of the device box 6. A measuring mechanism is provided inside the measuring cylinder 7. The measuring mechanism includes a water level sensor 8, which is located inside the measuring cylinder 7 and arranged along the length direction of the measuring cylinder 7. A float 9 is slidably sleeved outside the water level sensor 8. Specifically, the water level sensor 8, the float 9, the power supply 49, and the PLC controller 50 are all existing technologies. For details, reference can be made to the water level sensor, float, power supply, and controller in the dam water level monitoring device disclosed in the utility model patent CN219532202U. Their specific connection methods, installation methods, and working principles will not be elaborated here; the RTU telemetry terminal can adopt the multi-functional hydrological telemetry terminal based on micro-power consumption RTU disclosed in the invention patent application CN113382581A.

[0022] A lifting frame 10 is movably arranged inside the measuring cylinder 7. The lifting frame 10 is circular. An elevating mechanism is provided on the outer wall of the lifting frame 10, which is used to drive the lifting frame 10 to achieve the lifting function. A cleaning mechanism for the inner wall is provided at the bottom of the lifting frame 10. The cleaning mechanism for the inner wall includes a filter cylinder 28 and a plurality of scraping blades 29. The filter cylinder 28 is fixedly installed at the bottom of the lifting frame 10. The plurality of scraping blades 29 are all movably arranged at the bottom of the lifting frame 10. The scraping blades 29 are located outside the filter cylinder 28, and the plurality of scraping blades 29 are arranged around the filter cylinder 28. In this embodiment, the float 9 can slide through the lifting frame 10.

[0023] A plurality of balance holes 37 are opened on the measuring cylinder 7. A hole cleaning mechanism is arranged inside the lifting frame 10. The hole cleaning mechanism includes two dredging shafts 41, which are both slidably installed inside the lifting frame 10 and are respectively adapted to the plurality of balance holes 37. The dredging shafts 41 are arranged along the radial direction of the lifting frame 10 and slide along the radial direction of the lifting frame 10.

[0024] With the above structure, during use, first, through the cooperation of the water level sensor 8 and the float 9, the water level can be monitored in real time. After long-term use, the lifting mechanism drives the lifting frame 10 to move downward. When the lifting frame 10 is moving downward, the inner wall cleaning mechanism cleans the inner wall of the measuring cylinder 7, and the algae and foreign matter removed are left between the filter cylinder 28 and the inner wall of the measuring cylinder 7. When the lifting frame 10 descends to the set position, the hole cleaning mechanism can dredge the balance hole 37. When the lifting frame 10 moves downward to the bottom end of the measuring cylinder 7, the foreign matter removed is discharged by the water flow, preventing foreign matter from remaining in the measuring cylinder 7.

[0025] As Figure 3 , Figure 4 and Figure 7 shown, the lifting mechanism includes two arc-shaped lifting blocks 12. Two axial lifting grooves 11 are formed in the circumferential inner wall of the measuring cylinder 7. The two arc-shaped lifting blocks 12 are respectively slidably installed in the two lifting grooves 11. The two arc-shaped lifting blocks 12 are both fixedly connected to the lifting frame 10. Connecting holes and sliding holes are formed at the tops of the two arc-shaped lifting blocks 12. Steel wire ropes 13 are fixedly installed in the two connecting holes. The two steel wire ropes 13 can slide relatively with the two sliding holes respectively. Rotating shafts 22 are rotatably installed in the two lifting grooves 11. Fixed pulleys 23 are fixedly sleeved on the two rotating shafts 22. The fixed pulleys 23 are all located at the bottom of the measuring cylinder 7. The two steel wire ropes 13 respectively bypass the two fixed pulleys 23, and the fixed pulleys 23 are used to reverse the direction of the steel wire ropes 13.

[0026] In this implementation scheme, since the steel wire ropes 13 are fixedly connected to the connecting holes formed in the arc-shaped lifting blocks 12 and are slidably connected to the sliding holes, the steel wire ropes 13 drive the arc-shaped lifting blocks 12 to realize lifting movement by paying out one end and winding in the other end. Through the synchronous movement of the two arc-shaped lifting blocks 12, the lifting frame 10 is driven to realize the lifting function.

[0027] As Figure 5 and Figure 6As shown in the figure, the lifting mechanism further includes a first fixing plate 52 and a second fixing plate 53. The first fixing plate 52 and the second fixing plate 53 are both fixedly installed in the equipment box 6. Two wire feeding shafts 14 are respectively rotatably installed at both ends of the first fixing plate 52. Wire feeding rollers 16 are fixedly sleeved on the two wire feeding shafts 14. One ends of the two steel wire ropes 13 are respectively wound around the two wire feeding rollers 16. Two wire winding shafts 19 are rotatably installed on the side of the second fixing plate 53. Wire winding rollers 17 are fixedly sleeved on the two wire winding shafts 19. The other ends of the two steel wire ropes 13 are respectively wound around the two wire winding rollers 17. The two wire winding shafts 19 and the two wire winding rollers 17 are connected by a transmission component. Specifically, both ends of the steel wire rope 13 are respectively connected to the wire feeding roller 16 and the wire winding roller 17. Four protection grooves 21 are provided on the bottom inner wall of the equipment box 6. The two steel wire ropes 13 respectively pass through the four protection grooves 21. The four protection grooves 21 are all designed in a frustum shape, so as to realize the protection function of the steel wire rope 13 and avoid the wear of the steel wire rope 13.

[0028] In this implementation scheme, since both ends of the steel wire rope 13 are respectively wound around the wire feeding roller 16 and the wire winding roller 17, and through the setting of the transmission component, the wire feeding roller 16 and the wire winding roller 17 can be made to rotate synchronously and in opposite directions. When the wire feeding roller 16 pays out the steel wire rope 13, the wire winding roller 17 rotates in the opposite direction to wind up the steel wire rope 13, so that the steel wire rope 13 is always in a tensioned state, thereby driving the arc-shaped lifting block 12 to realize the lifting movement, and still being able to maintain stability during the long-distance movement.

[0029] As Figure 5 and Figure 6 shown in the figure, the transmission component includes two synchronous belt pulleys 15. The two synchronous belt pulleys 15 are respectively fixedly sleeved on the two wire feeding shafts 14. The two synchronous belt pulleys 15 are connected by a synchronous belt. A control motor 51 is fixedly installed on the side of the first fixing plate 52. Specifically, the control motor 51 is controlled by a PLC controller 50. The output shaft of the control motor 51 is connected to the end of one of the wire feeding shafts 14.

[0030] In this implementation scheme, start the control motor 51 to drive one of the wire feeding shafts 14 to rotate. Then, under the meshing action of the two synchronous belt pulleys 15 and the synchronous belt, drive the other wire feeding shaft 14 to rotate synchronously, so as to realize synchronous wire feeding on both sides, and then drive the two arc-shaped lifting blocks 12 to realize the synchronous descending function, and avoid the phenomenon of jamming during the lifting process of the lifting frame 10.

[0031] As Figure 5 and Figure 6As shown, the transmission assembly further includes two support frames 18. The support frames 18 are installed in the equipment box 6. The support frames 18 are located between the first fixed plate 52 and the second fixed plate 53. There are two support frames 18 arranged side by side and at intervals. The other ends of the two wire pay-off shafts 14 and the other ends of the two wire take-up reels 19 are respectively rotatably installed on the two support frames 18. Fixed sleeves of linkage gears 20 are sleeved outside the other ends of the two wire pay-off shafts 14 and the two wire take-up reels 19. The two linkage gears 20 on the same side are meshed with each other.

[0032] In this implementation scheme, when the wire pay-off shaft 14 and the wire pay-off roller 16 rotate, through the meshing action between the two linkage gears 20, the wire take-up reel 19 and the wire take-up roller 17 can be driven to rotate synchronously and in opposite directions, so that when one end of the steel wire rope 13 pays off, the other end is synchronously wound up, making the steel wire rope 13 always in a tensioned state.

[0033] As Figure 8 and Figure 9 shown, the inner wall cleaning mechanism further includes an annular rotating plate 33. A lower annular cavity 31 is formed in the lifting frame 10. An annular groove is formed at the bottom of the lower annular cavity 31. The annular rotating plate 33 is rotatably installed in the lower annular cavity 31. The lower part of the lower annular cavity 31 is rotatably arranged in the annular groove. Specifically, sealing grooves are formed on both sides of the annular groove. Sealing gaskets 34 are arranged in the two sealing grooves. The two sealing gaskets 34 are both attached to the annular rotating plate 33. A plurality of scraping blades 29 are fixedly installed at the bottom of the annular rotating plate 33. The plurality of scraping blades 29 are all attached to the circumferential inner wall of the measuring cylinder 7. A spline shaft sleeve 30 and a rotating rod 45 are rotatably installed in the lifting frame 10. The spline shaft sleeve 30 and the rotating rod 45 are respectively located on both sides of the lifting frame 10. Fixed sleeves of transmission gears 35 are sleeved on the outer walls of the spline shaft sleeve 30 and the rotating rod 45. An annular rack 36 meshing with the two transmission gears 35 is fixedly installed on the circumferential inner wall of the annular rotating plate 33. Fixed sleeves of cams 40 are sleeved on the outer walls of the spline shaft sleeve 30 and the rotating rod 45.

[0034] In this implementation scheme, when the spline shaft sleeve 30 rotates, through the meshing action between the transmission gear 35 and the annular rack 36, the annular rack 36 and the annular rotating plate 33 can be driven to realize the rotating function. When the annular rotating plate 33 rotates, a plurality of scraping blades 29 can be driven to rotate synchronously to clean the circumferential inner wall of the measuring cylinder 7.

[0035] As Figure 3 , Figure 4 , Figure 8 and Figure 9As shown, the inner wall cleaning mechanism further includes a spline sleeve 46. The spline sleeve 46 is rotatably installed at the top of the measuring cylinder 7. A driving motor 48 is fixedly installed at the bottom of the equipment box 6. Specifically, the driving motor 48 can be controlled by a PLC controller 50. The output shaft of the driving motor 48 is fixedly connected to the end of the spline sleeve 46. A spline shaft 47 is slidably installed in the spline sleeve 46. The spline shaft 47 is slidably connected to the spline shaft sleeve 30. The spline shaft 47 is located between the spline sleeve 46 and the spline shaft sleeve 30.

[0036] In this embodiment, when the driving motor 48 is started to drive the spline sleeve 46 to rotate, the spline shaft 47 is driven to rotate synchronously by the rotation of the spline sleeve 46. Through the cooperation between the spline shaft 47 and the spline shaft sleeve 30, the spline shaft sleeve 30 is enabled to rotate.

[0037] As Figure 7 、 Figure 8 and Figure 9 shown, the hole cleaning mechanism further includes two pressing plates 38. Two upper cavities 32 are formed in the lifting frame 10. The two pressing plates 38 are respectively slidably installed in the two upper cavities 32. Limiting grooves are formed at the top and bottom of the two upper cavities 32. Four limiting sliders 39 are respectively slidably installed in the four limiting grooves. The four limiting sliders 39 are respectively fixedly connected to the corresponding pressing plates 38. Telescopic shafts 42 are fixedly installed on the sides of the two pressing plates 38 away from each other. Telescopic grooves are formed at the ends of the two dredging shafts 41. The two telescopic shafts 42 are respectively slidably installed in the two telescopic grooves. Avoidance springs 43 are fixedly installed at the ends of the two telescopic shafts 42. Compression springs 44 are sleeved on the outer walls of the telescopic shafts 42 and the dredging shafts 41 together.

[0038] In this embodiment, by controlling the control motor 51 through the PLC controller 50, the lifting frame 10 can be stopped when it moves to the designated position. At this time, the dredging shaft 41 corresponds to the balance hole 37. By the rotation of the spline shaft sleeve 30, the cam 40 is driven to rotate synchronously. Through the extrusion of the cam 40 on the pressing plate 38 during rotation, the pressing plate 38 is driven to move horizontally. Thus, the telescopic shaft 42 and the dredging shaft 41 are driven by the pressing plate 38 to move into the balance hole 37 synchronously to clean the foreign matters in the balance hole 37. When the spline shaft sleeve 30 continues to rotate, the extrusion of the cam 40 on the pressing plate 38 can be released. Thus, the pressing plate 38 can be reset under the elastic action of the compression spring 44, and then the dredging shaft 41 is driven to be reset synchronously, avoiding the jamming phenomenon during the lifting process of the lifting frame 10.

[0039] As Figure 7As shown, the bottom end of the measuring tube 7 is detachably mounted with a bottom cover 24, and two arc-shaped holes are provided on both sides of the bottom of the measuring tube 7. A U-shaped plate 25 is slidably sleeved on the water level sensor 8, and both sides of the U-shaped plate 25 are arc-shaped, and the opening of the U-shaped plate 25 is downwardly arranged, and multiple through holes are provided on both sides of the U-shaped plate 25. The bottom ends of the measuring tube 7 and the bottom cover 24 are both provided with two circular holes, and slide bars 26 are slidably installed in the two circular holes. The top ends of the two slide bars 26 are fixedly installed on the U-shaped plate 25. The bottom end of the measuring tube 7 is provided with two circular grooves, and the outer walls of the peripheral sides of the two slide bars 26 are sleeved with reset springs 27. The measuring tube 7 and the bottom cover 24 are provided with clearance grooves on both sides of the bottom, and the middle part of the U-shaped plate 25 is located in the measuring tube 7, and the vertical parts on both sides are located in the clearance grooves. When the two vertical parts are directly opposite to the arc-shaped hole, the arc-shaped hole can be closed without affecting the water flow. When the U-shaped plate 25 moves downward, the arc-shaped hole can be opened.

[0040] In this embodiment, by setting two arc-shaped holes, water can quickly enter the measuring cylinder 7. By setting the U-shaped plate 25, the arc-shaped hole can be closed without affecting the water flow, thereby preventing foreign matter from entering the measuring cylinder 7 from the bottom. When the lifting frame 10 moves downward, it drives the filter cylinder 28 to move synchronously, squeezes the U-shaped plate 25, and drives the U-shaped plate 25 to move downward. When the U-shaped plate 25 moves downward, foreign matter between the filter cylinder 28 and the measuring cylinder 7 is discharged from the arc-shaped hole by the action of the water flow, thereby preventing the cleaned foreign matter from remaining in the measuring cylinder 7.

[0041] More specifically, in order to make the position of the lifting frame 10 more accurate during the lifting process, a displacement sensor can be set on the top inner wall of the measuring tube 7. The displacement sensor is a prior art and its specific working principle is not elaborated herein. By measuring the distance between each balancing hole 37 and the displacement sensor, the PLC controller 50 controls the control motor 51. When the lifting frame 10 moves to a fixed position, the displacement sensor sends an electrical signal to the PLC controller 50, and the PLC controller 50 controls the control motor 51 to stop moving, thereby making the stopping position of the lifting frame 10 more accurate during the lifting process and improving the cleaning effect of the balancing hole 37.

[0042] Working principle and usage process of the present invention: During use, the water level is monitored in real time through the cooperation of the water level sensor 8 and the float 9. When it is necessary to clean the measuring cylinder 7, first start the driving motor 48 to drive the spline sleeve 46 and the spline shaft 47 to rotate synchronously. When the spline shaft 47 rotates, through the connection with the spline shaft sleeve 30, the spline shaft sleeve 30 is driven to rotate synchronously. Then, the annular rotating plate 33 is driven to rotate through the transmission gear 35 and the annular rack 36. When the annular rotating plate 33 rotates, multiple scrapers 29 can be driven to rotate synchronously. The inner wall of the measuring cylinder 7 is cleaned by the multiple scrapers 29, and foreign matters attached to the inner wall of the measuring cylinder 7 are removed. Through the setting of the filter cylinder 28, the foreign matters cleaned can be blocked, so that the foreign matters remain between the measuring cylinder 7 and the filter cylinder 28.

[0043] Start the control motor 51 to drive one of the wire reels 14 to rotate. Under the meshing action of the two synchronous belt pulleys 15 and the synchronous belt, the other wire reel 14 is driven to rotate synchronously, so that the two wire rollers 16 rotate synchronously. When the two wire reels 14 rotate, through the meshing action of the multiple linkage gears 20, the two winding shafts 19 and the two winding rollers 17 can be driven to rotate synchronously in opposite directions. Through the reverse rotation between the winding roller 17 and the wire roller 16 and the reversing action of the fixed pulley 23 on the steel wire rope 13, the two arc-shaped lifting blocks 12 are driven to move downward synchronously, and the inner wall of the measuring cylinder 7 is continuously cleaned in cooperation with the multiple scrapers 29.

[0044] When the spline shaft sleeve 30 rotates, it can drive another transmission gear 35 and the rotating rod 45 to rotate synchronously through the meshing action between the transmission gear 35 and the annular rack 36. When the spline shaft sleeve 30 and the rotating rod 45 rotate, they can drive the two cams 40 to rotate synchronously. Through the extrusion action of the cams 40 on the extrusion plate 38, it can drive the telescopic shaft 42 and the dredging shaft 41 to move horizontally synchronously. When the dredging shaft 41 contacts the inner wall of the measuring cylinder 7, through the elastic action of the avoidance spring 43, the telescopic shaft 42 can move horizontally in the telescopic groove, thus playing an avoidance function. When the lifting frame 10 moves a fixed distance, the dredging shaft 41 corresponds to the position of the balance hole 37. At this time, the control motor 51 is stopped, so that the cam 40 squeezes the extrusion plate 38 during rotation, causing the extrusion plate 38 to drive the telescopic shaft 42 and the dredging shaft 41 to move horizontally synchronously into the balance hole 37. The foreign matter in the balance hole 37 is cleaned through the dredging shaft 41, thereby realizing the cleaning function of the balance hole 37. When the extrusion plate 38 moves horizontally, it can compress the compression spring 44. When the spline shaft sleeve 30 continues to rotate, it drives the cam 40 to release the extrusion on the extrusion plate 38. Through the elastic action of the compression spring 44, it can drive the extrusion plate 38, the telescopic shaft 42, and the dredging shaft 41 to reset synchronously, releasing the clamping between the dredging shaft 41 and the balance hole 37, so that the control motor 51 can work again to drive the two arc-shaped lifting blocks 12 and the lifting frame 10 to realize the descending function and continue to clean the inner wall of the measuring cylinder 7.

[0045] When the lifting frame 10 moves downward until the filter cylinder 28 contacts and squeezes the U-shaped plate 25, causing it to move downward. When the U-shaped plate 25 moves downward, the foreign matter between the outer wall of the filter cylinder 28 and the inner wall of the measuring cylinder 7 is discharged outward into the river under the action of water flow, preventing the remaining foreign matter after cleaning from remaining in the measuring cylinder 7 and continuing to breed. When the entire cleaning process is over, the driving motor 48 is turned off, so that the cam 40 releases the extrusion on the extrusion plate 38, and the control motor 51 is started to make its output shaft rotate in the reverse direction, thereby driving the two arc-shaped lifting blocks 12 and the lifting frame 10 to move in the reverse direction and reset.

[0046] The above is only a preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A water level monitoring device for hydraulic surveying and mapping, including a vertical pole (1), characterized in that: A control box (2), a solar panel (3), a camera (4), and a mounting bracket (5) are detachably mounted on the vertical pole (1). A device box (6) is arranged at the top of the mounting bracket (5). A measuring cylinder (7) is fixedly mounted at the bottom of the device box (6). A measuring mechanism is arranged in the measuring cylinder (7). The measuring mechanism includes a water level sensor (8). The water level sensor (8) is arranged in the measuring cylinder (7). A float (9) is slidably sleeved outside the water level sensor (8). A lifting frame (10) is movably arranged in the measuring cylinder (7). The lifting frame (10) is circular. A lifting mechanism is arranged on the outer wall of the lifting frame (10). The lifting mechanism is used to drive the lifting frame (10) to realize the lifting function. An inner wall cleaning mechanism is arranged at the bottom of the lifting frame (10). The inner wall cleaning mechanism includes a filter cylinder (28) and a plurality of scraping blades (29). The filter cylinder (28) is fixedly mounted at the bottom of the lifting frame (10). A plurality of the scraping blades (29) are all movably arranged at the bottom of the lifting frame (10). The scraping blades (29) are located outside the filter cylinder (28). A plurality of the scraping blades (29) are arranged around the filter cylinder (28). The float (9) can slide through the lifting frame (10). A plurality of balance holes (37) are formed in the measuring cylinder (7). A hole cleaning mechanism is arranged in the lifting frame (10). The hole cleaning mechanism includes two dredging shafts (41). The two dredging shafts (41) are both slidably mounted in the lifting frame (10) and are respectively adapted to the plurality of balance holes (37).

2. The water level monitoring device for hydraulic mapping according to claim 1, characterized in that: The lifting mechanism includes two arc-shaped lifting blocks (12). Two axial lifting grooves (11) are formed in the inner wall of the measuring cylinder (7). The two arc-shaped lifting blocks (12) are respectively slidably mounted in the two lifting grooves (11). The two arc-shaped lifting blocks (12) are both fixedly connected to the circumferential outer wall of the lifting frame (10). Connecting holes and sliding holes are formed at the tops of the two arc-shaped lifting blocks (12). Steel wires (13) are fixedly mounted in the two connecting holes. The two steel wires (13) are respectively slidably connected to the two sliding holes. Rotating shafts (22) are rotatably mounted in the two lifting grooves (11). Fixed pulleys (23) are fixedly sleeved on the two rotating shafts (22). The two steel wires (13) bypass the two fixed pulleys (23).

3. The water level monitoring device for hydraulic mapping according to claim 2, characterized in that: The lifting mechanism further includes a first fixed plate (52) and a second fixed plate (53). The first fixed plate (52) and the second fixed plate (53) are both fixedly installed inside the equipment box (6). Two wire pay-off shafts (14) are rotatably installed on the first fixed plate (52). Wire pay-off rollers (16) are fixedly sleeved on both of the two wire pay-off shafts (14). One end of each of the two wire ropes (13) is wound around one of the two wire pay-off rollers (16). Two wire take-up shafts (19) are rotatably installed on the side of the second fixed plate (53). Wire take-up rollers (17) are fixedly sleeved on both of the two wire take-up shafts (19). The other end of each of the two wire ropes (13) is wound around one of the two wire take-up rollers (17). The two wire take-up shafts (19) and the two wire take-up rollers (17) are connected by a transmission assembly.

4. The water level monitoring device for hydraulic mapping according to claim 3, characterized in that: The transmission assembly includes two synchronous belt pulleys (15). The two synchronous belt pulleys (15) are respectively fixedly sleeved on the two wire pay-off shafts (14). The two synchronous belt pulleys (15) are connected by a synchronous belt. A control motor (51) is fixedly installed on the side of the first fixed plate (52). The output shaft of the control motor (51) is connected to the end of one of the wire pay-off shafts (14).

5. The water level monitoring device for hydraulic surveying and mapping according to claim 4, characterized in that: The transmission assembly further includes two support frames (18). The two support frames (18) are both fixedly installed at the bottom of the equipment box (6). The other ends of the two wire pay-off shafts (14) and the one ends of the two wire take-up shafts (19) are respectively rotatably installed on the two support frames (18). Linkage gears (20) are fixedly sleeved outside the two wire pay-off shafts (14) and the two wire take-up shafts (19). The two linkage gears (20) on the same side are meshed with each other.

6. The water level monitoring device for hydraulic mapping according to claim 1, characterized in that: The inner wall cleaning mechanism further includes an annular rotating plate (33). A lower annular cavity (31) is formed inside the lifting frame (10). An annular groove is formed at the bottom of the lower annular cavity (31). The annular rotating plate (33) is rotatably installed in the annular groove. A plurality of scraping blades (29) are all fixedly installed at the bottom of the annular rotating plate (33). A spline shaft sleeve (30) and a rotating rod (45) are rotatably installed inside the lifting frame (10). Transmission gears (35) are fixedly sleeved on the outer walls of the spline shaft sleeve (30) and the rotating rod (45). An annular rack (36) meshing with the two transmission gears (35) is fixedly installed on the inner wall of the annular rotating plate (33). Cams (40) are fixedly sleeved on the outer walls of the spline shaft sleeve (30) and the rotating rod (45).

7. The water level monitoring device for hydraulic mapping according to claim 6, characterized in that: The inner wall cleaning mechanism further includes a spline sleeve (46). The spline sleeve (46) is rotatably installed at the top of the measuring cylinder (7). A driving motor (48) is fixedly installed on the bottom inner wall of the equipment box (6). The output shaft of the driving motor (48) is fixedly connected to the end of the spline sleeve (46). A spline shaft (47) is slidably installed inside the spline sleeve (46). The spline shaft (47) is slidably connected to the spline shaft sleeve (30).

8. The water level monitoring device for hydraulic mapping according to claim 1, characterized in that: The hole cleaning mechanism further includes two pressing plates (38). Two upper cavities (32) are formed in the lifting frame (10). The two pressing plates (38) are respectively slidably installed in the two upper cavities (32). Limiting grooves are formed in the inner walls of the two upper cavities (32). Limiting sliders (39) are respectively slidably installed in the limiting grooves. The limiting sliders (39) are fixedly connected to the corresponding pressing plates (38). Telescopic shafts (42) are fixedly installed on the side parts of the two pressing plates (38) away from each other. Telescopic grooves are formed at the ends of the two dredging shafts (41). The two telescopic shafts (42) are respectively slidably installed in the two telescopic grooves. Avoidance springs (43) are fixedly installed at the ends of the two telescopic shafts (42). The other ends of the avoidance springs (43) are fixedly installed on the inner walls of the sides of the telescopic grooves. Compression springs (44) are sleeved on the outer circumferential walls of the telescopic shafts (42) and the dredging shafts (41).

9. The water level monitoring device for hydraulic mapping according to claim 1, characterized in that: A bottom cover (24) is detachably installed at the bottom end of the measuring cylinder (7). Two arc-shaped holes are formed in the outer wall of the measuring cylinder (7). A U-shaped plate (25) is slidably sleeved on the water level sensor (8). Both sides of the U-shaped plate (25) are arc-shaped. A plurality of through holes are formed on both sides of the U-shaped plate (25). Two round holes are formed at the bottom ends of the measuring cylinder (7) and the bottom cover (24). Slide rods (26) are respectively slidably installed in the two round holes. The top ends of the two slide rods (26) are fixedly installed on the bottom inner wall of the U-shaped plate (25). Two round grooves are formed at the bottom end of the measuring cylinder (7). Return springs (27) are sleeved on the outer circumferential walls of the two slide rods (26).

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