A water level monitoring device for water conservancy surveying and mapping

Abstract

The present invention relates to the technical field of water conservancy and water level monitoring, and discloses a water level monitoring device for water conservancy surveying and mapping, comprising a vertical pole, on which a control box, a solar panel, a camera, and a mounting bracket are detachably mounted, and an equipment box is provided on the top of the mounting bracket. When in use, the water level can be monitored in real time through the cooperation of the water level sensor and the float. After long-term use, the lifting frame is driven downward by the lifting mechanism. When the lifting frame is moving downward, the inner wall of the measuring cylinder is cleaned by the inner wall cleaning mechanism, and the cleaned algae and foreign matter remain between the filter cylinder and the measuring cylinder. When the lifting frame descends to the set position, the balance hole can be unblocked by the hole cleaning mechanism. When the lifting frame moves downward to the bottom of the measuring cylinder, the foreign matter is discharged by the action of the water flow to prevent the foreign matter from remaining 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] Precise water level monitoring is a core technology in water resource management, flood prevention and disaster reduction decision-making, and agricultural irrigation scheduling. Currently, float-based water level monitoring devices are widely used for river level monitoring. These devices dynamically collect water level data by sensing the position changes of the float within the measuring tube in real time.

[0003] However, in actual application scenarios, the rich biodiversity of river ecosystems poses challenges to this technology. During long-term operation, a large number of microorganisms and algae will gradually adhere to the inner wall of the measuring tube to form a biofilm. This biological attachment not only changes the surface roughness of the tube wall, but also generates additional frictional resistance during the rise and fall of the float, causing the float to jam and respond slowly. This not only affects the real-time and accuracy of the monitoring data, but may also cause decision-making errors due to data delays during critical periods such as flood season, 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 technology.

[0005] The present invention provides the following technical solution: a water level monitoring device for water conservancy surveying and mapping, comprising a vertical pole, on which a control box, a solar panel, a camera, and a mounting bracket are detachably mounted, an equipment box being provided on the top of the mounting bracket, a measuring cylinder being fixedly mounted on the bottom of the equipment box, a measuring mechanism being provided within the measuring cylinder, the measuring mechanism comprising a water level sensor disposed within the measuring cylinder, and a float being provided on an outer sliding sleeve of the water level sensor;

[0006] A lifting frame is movably provided in the measuring cylinder, and the lifting frame is in a circular shape. A lifting mechanism is provided on the outer wall of the lifting frame, and the lifting mechanism is used to drive the lifting frame to realize the lifting function. An inner wall cleaning mechanism is provided at the bottom of the lifting frame, and the inner wall cleaning mechanism includes a filter cylinder and multiple scrapers. The filter cylinder is fixedly mounted on the bottom of the lifting frame, and the multiple scrapers are movably provided at the bottom of the lifting frame. The scrapers are located outside the filter cylinder, and the multiple scrapers are arranged around the filter cylinder. The float can slide through the lifting frame;

[0007] The measuring cylinder is provided with a plurality of balancing holes, and a hole cleaning mechanism is provided in the lifting frame. The hole cleaning mechanism includes two dredging shafts. Both dredging shafts are slidably installed in the lifting frame and are respectively adapted to the plurality of balancing holes.

[0008] Furthermore, the lifting mechanism includes two arc-shaped lifting blocks, two axial lifting grooves are provided on 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 peripheral outer wall of the lifting frame, the tops of the two arc-shaped lifting blocks are provided with connecting holes and sliding holes, steel wire ropes are fixedly installed in the two connecting holes, the two steel wire ropes are respectively slidably connected to the two sliding holes, a rotating shaft is rotatably installed in the two lifting grooves, a fixed pulley is fixedly sleeved on the two rotating shafts, and the two steel wire ropes pass around the two fixed pulleys.

[0009] Furthermore, the lifting mechanism also includes a first fixed plate and a second fixed plate, and the first fixed plate and the second fixed plate are both fixedly installed in the equipment box. Two pay-off shafts are rotatably installed on the first fixed plate, and the two pay-off shafts are fixedly sleeved with pay-off rollers. One end of the two steel ropes are respectively wound around the two pay-off rollers. Two winding shafts are rotatably installed on the side of the second fixed plate, and the two winding shafts are fixedly sleeved with winding rollers. The other ends of the two steel ropes are respectively wound around the two winding rollers, and the two winding shafts are connected to the two winding rollers through a transmission assembly.

[0010] Furthermore, the transmission assembly includes two synchronous pulleys, which are respectively fixedly sleeved on the two pay-off shafts, and the two synchronous pulleys are connected by a synchronous belt. A control motor is fixedly installed on the side of the first fixed plate, and the output shaft of the control motor is connected to the end of one of the pay-off shafts.

[0011] Furthermore, the transmission assembly also includes two support frames, both of which are fixedly installed on the bottom of the equipment box, and the other ends of the two pay-off shafts and one ends of the two winding shafts are respectively rotatably installed on the two support frames, and the two pay-off shafts and the two winding shafts are fixedly sleeved with linkage gears, and the two linkage gears located on the same side are meshed with each other.

[0012] Furthermore, the inner wall cleaning mechanism also includes an annular rotating plate, a lower annular cavity is provided in the lifting frame, an annular groove is provided at the bottom of the lower annular cavity, the annular rotating plate is rotatably installed in the annular groove, and multiple scrapers are fixedly installed at the bottom of the annular rotating plate, a spline sleeve and a rotating rod are rotatably installed in the lifting frame, the spline sleeve and the outer wall of the rotating rod are fixedly connected with a transmission gear, the inner wall of the annular rotating plate is fixedly installed with an annular rack meshing with the two transmission gears, and the spline sleeve and the outer wall of the rotating rod are fixedly connected with a cam.

[0013] Furthermore, the inner wall cleaning mechanism also includes a spline sleeve, which is rotatably mounted on the top of the measuring cylinder, and a drive motor is fixedly mounted on the bottom inner wall of the equipment box. The output shaft of the drive motor is fixedly connected to the end of the spline sleeve, and a spline shaft is slidably mounted in the spline sleeve, and the spline shaft is slidably connected to the spline shaft sleeve.

[0014] Furthermore, the hole cleaning mechanism also includes two extrusion plates, two upper cavities are provided in the lifting frame, and the two extrusion plates are slidably installed in the two upper cavities respectively. The inner walls of the two upper cavities are provided with limiting grooves, and limiting sliders are slidably installed in the limiting grooves. The limiting sliders are fixedly connected to the extrusion plates on the corresponding sides, and the sides of the two extrusion plates away from each other are fixedly installed with telescopic shafts, and the ends of the two dredging shafts are provided with telescopic grooves, and the two telescopic shafts are slidably installed in the two telescopic grooves respectively. The ends of the two telescopic shafts are fixedly installed with avoidance springs, and the other end of the avoidance spring is fixedly installed on the inner wall of the side of the telescopic groove, and the telescopic shaft and the outer wall of the circumference of the dredging shaft are jointly sleeved with a compression spring.

[0015] Furthermore, a bottom cover is detachably installed at the bottom end of the measuring cylinder, and two arc-shaped holes are provided on the outer wall of the measuring cylinder. A U-shaped plate is slidably sleeved on the water level sensor, and both sides of the U-shaped plate are arc-shaped. Multiple through holes are provided on both sides of the U-shaped plate. Two circular holes are provided at the bottom ends of the measuring cylinder and the bottom cover, and sliding rods are slidably installed in the two circular holes. The top ends of the two sliding rods are fixedly installed on the bottom inner wall of the U-shaped plate. Two circular grooves are provided at the bottom end of the measuring cylinder, and the outer walls of the circumferences of the two sliding rods are sleeved with reset springs.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the spline shaft rotates, the spline sleeve is driven to rotate synchronously through the connection between the spline shaft and the spline sleeve, thereby driving the annular rotating plate to rotate through the transmission gear and the annular rack. When the annular rotating plate rotates, it can drive multiple scrapers to rotate synchronously, and the inner wall of the measuring cylinder is cleaned by the multiple scrapers to remove foreign matter attached to the inner wall of the measuring cylinder. The setting of the filter cylinder can block the cleaned foreign matter, so that the foreign matter remains between the inner wall of the measuring cylinder and the outer wall of the filter cylinder, and prevent the cleaned foreign matter from floating to the water surface above the measuring cylinder.

[0018] 2. The meshing action between the transmission gear and the annular rack enables the spline sleeve and the rotating rod to rotate synchronously, thereby driving the two cams to rotate. The cam squeezes the extrusion plate, so that the extrusion plate drives the telescopic shaft and the dredging shaft to move horizontally into the balancing hole synchronously during movement. The dredging shaft cleans foreign matter in the balancing hole, thereby realizing the cleaning function of the balancing hole.

[0019] 3. The lifting frame moves downward until the filter cartridge contacts and squeezes the U-shaped plate, causing it to move downward. When the U-shaped plate moves downward, the two arc-shaped holes are unsealed, so that foreign matter between the outer wall of the filter cartridge and the inner wall of the measuring cartridge is discharged into the river channel under the action of water flow, preventing the cleaned foreign matter from remaining in the measuring cartridge and continuing to grow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of this embodiment;

[0021] Figure 2 This is a schematic diagram of the connection structure of the equipment box, measuring tube, and bottom cover of this embodiment;

[0022] Figure 3 This is a schematic diagram of a partial cross-section structure of the measuring tube in this embodiment;

[0023] Figure 4 for Figure 3 A in the middle is an enlarged structural diagram;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the equipment box, the first fixing plate, and the support frame in this embodiment;

[0025] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0026] Figure 7 This is a partially cutaway enlarged structural diagram of the measuring tube and the U-shaped plate in this embodiment;

[0027] Figure 8 This is a partial cross-sectional structural diagram of the lifting frame, annular rotating plate, and annular rack in this embodiment;

[0028] Figure 9 for Figure 8 The enlarged structural diagram at C in the middle;

[0029] Figure 10 This is a schematic diagram of the cross-sectional structure of the dredging shaft in this embodiment.

[0030] The accompanying drawings are marked as follows: 1, vertical pole; 2, control box; 3, solar panel; 4, camera; 5, mounting frame; 6, equipment box; 7, measuring cylinder; 8, water level sensor; 9, float; 10, lifting frame; 11, lifting groove; 12, arc-shaped lifting block; 13, wire rope; 14, pay-off shaft; 15, synchronous pulley; 16, pay-off roller; 17, take-up roller; 18, support frame; 19, take-up shaft; 20, linkage gear; 21, protection groove; 22, rotating shaft; 23, fixed pulley; 24, bottom cover; 25, U-shaped plate; 26, slide bar; 27, reset spring; 28 , filter cartridge; 29, scraper; 30, splined sleeve; 31, lower annular cavity; 32, upper cavity; 33, annular rotating plate; 34, sealing 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, splined sleeve; 47, splined shaft; 48, drive motor; 49, power supply; 50, PLC controller; 51, control motor; 52, first fixed plate; 53, second fixed plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0032] Figures 1-10 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1-10 The present invention is further described.

[0033] Refer to the attached Figures 1-10A water level monitoring device for water conservancy surveying and mapping includes a pole 1, on which a control box 2, a solar panel 3, a camera 4, and a mounting bracket 5 are detachably mounted. Specifically, an RTU telemetry terminal is provided in 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 are not described here. More specifically, the camera 4 can use a spherical camera to achieve 360-degree shooting without blind spots. An equipment box 6 is provided on the top of the mounting bracket 5. Specifically, a power supply 49 and a PLC controller 50 are fixedly mounted on the inner wall of the equipment box 6, and a measuring cylinder is fixedly mounted on the bottom of the equipment box 6. 7. A measuring mechanism is provided in the measuring tube 7, and the measuring mechanism includes a water level sensor 8. The water level sensor 8 is located in the measuring tube 7 and is arranged along the length direction of the measuring tube 7. A float 9 is provided on the outer sliding sleeve of 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 may 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. The specific connection method, installation method and working principle are not described in detail here; the RTU telemetry terminal can adopt the micro-power consumption RTU multi-function hydrological telemetry terminal disclosed in the invention patent application CN113382581A.

[0034] A lifting frame 10 is movably mounted within the measuring cylinder 7. The lifting frame 10 is annular and has a lifting mechanism mounted on its outer wall. This mechanism is used to move the lifting frame 10 up and down. An inner wall cleaning mechanism is located at the bottom of the lifting frame 10. This mechanism includes a filter cartridge 28 and multiple scrapers 29. The filter cartridge 28 is fixedly mounted at the bottom of the lifting frame 10. The multiple scrapers 29 are movably mounted at the bottom of the lifting frame 10, located outside the filter cartridge 28 and surrounding it. In this embodiment, the float 9 can slide through the lifting frame 10.

[0035] A plurality of balancing holes 37 are provided on the measuring tube 7, and a hole cleaning mechanism is provided in the lifting frame 10. The hole cleaning mechanism includes two dredging shafts 41. The two dredging shafts 41 are both slidably installed in the lifting frame 10 and are respectively adapted to the plurality of balancing 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.

[0036] With the above structure, when in use, the water level can be monitored in real time through the cooperation of the water level sensor 8 and the float 9. After long-term use, the lifting frame 10 is driven to move downward by the lifting mechanism. When the lifting frame 10 moves downward, the inner wall of the measuring cylinder 7 is cleaned by the inner wall cleaning mechanism, and the cleaned algae and foreign matter remain 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 balance hole 37 can be unblocked through the hole cleaning mechanism. When the lifting frame 10 moves downward to the bottom of the measuring cylinder 7, the cleaned foreign matter is discharged by the action of water flow to prevent foreign matter from remaining in the measuring cylinder 7.

[0037] like Figure 3 、 Figure 4 and Figure 7 As shown, the lifting mechanism includes two arc-shaped lifting blocks 12, and two axial lifting grooves 11 are provided on the inner wall of the circumference 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 fixedly connected to the lifting frame 10. The tops of the two arc-shaped lifting blocks 12 are provided with connecting holes and sliding holes. Steel wire ropes 13 are fixedly installed in the two connecting holes. The two steel wire ropes 13 can slide relative to the two sliding holes respectively. Rotating shafts 22 are rotatably installed in the two lifting grooves 11, and fixed pulleys 23 are fixedly sleeved on the two rotating shafts 22. The fixed pulleys 23 are both located at the bottom of the measuring cylinder 7. The two steel wire ropes 13 pass around the two fixed pulleys 23 respectively, and the steel wire ropes 13 are reversed by the fixed pulleys 23.

[0038] In this embodiment, since the steel wire rope 13 is fixedly connected to the connection holes opened on the arc-shaped lifting block 12 and is slidably connected to the sliding hole, the steel wire rope 13 is released at one end and reeled in at the other end, driving the arc-shaped lifting block 12 to realize the lifting movement. Through the synchronous movement of the two arc-shaped lifting blocks 12, the lifting frame 10 is driven to realize the lifting function.

[0039] like Figure 5 and Figure 6As shown, the lifting mechanism also includes a first fixed plate 52 and a second fixed plate 53. The first fixed plate 52 and the second fixed plate 53 are fixedly installed in the equipment box 6. Two pay-off shafts 14 are rotatably installed at both ends of the first fixed plate 52. Pay-off rollers 16 are fixedly sleeved on the two pay-off shafts 14. One end of the two steel wire ropes 13 is respectively wound around the two pay-off rollers 16. Two reel shafts 19 are rotatably installed on the side of the second fixed plate 53. Reel rollers 17 are fixedly sleeved on the two reel shafts 19. The other ends of the two steel ropes 13 are respectively wound on two winding rollers 17, and the two winding shafts 19 are connected to the two winding rollers 17 through a transmission assembly. Specifically, the two ends of the steel rope 13 are respectively connected to the pay-off roller 16 and the winding roller 17. Four protective grooves 21 are opened on the bottom inner wall of the equipment box 6. The two steel ropes 13 pass through the four protective grooves 21 respectively. The four protective grooves 21 are all frustum-shaped, thereby realizing the protection function of the steel rope 13 and avoiding wear of the steel rope 13.

[0040] In this embodiment, since the two ends of the wire rope 13 are respectively wound on the pay-out roller 16 and the winding roller 17, and through the setting of the transmission component, the pay-out roller 16 and the winding roller 17 can rotate synchronously in opposite directions. When the pay-out roller 16 pays out the wire rope 13, the winding roller 17 rotates in the opposite direction to wind up the wire rope 13, so that the wire rope 13 is always in a tensioned state, thereby driving the arc-shaped lifting block 12 to realize lifting movement, and can still maintain stability during long-distance movement.

[0041] like Figure 5 and Figure 6 As shown, the transmission assembly includes two synchronous pulleys 15, which are respectively fixedly sleeved on the two pay-off shafts 14, and the two synchronous pulleys 15 are connected by a synchronous belt. A control motor 51 is fixedly installed on the side of the first fixed plate 52. Specifically, the control motor 51 is controlled by a PLC controller 50, and the output shaft of the control motor 51 is connected to the end of one of the pay-off shafts 14.

[0042] In this embodiment, the starting control motor 51 drives one of the pay-off shafts 14 to rotate, and then drives the other pay-off shaft 14 to rotate synchronously under the meshing action of the two synchronous pulleys 15 and the synchronous belt, so that the two sides pay out the wire synchronously, and then drives the two arc-shaped lifting blocks 12 to realize the synchronous descending function, thereby avoiding the lifting frame 10 from getting stuck during the lifting process.

[0043] like Figure 5 and Figure 6As shown, the transmission assembly also includes two support frames 18, which are installed in the equipment box 6 and located between the first fixed plate 52 and the second fixed plate 53. Two support frames 18 are arranged side by side and at intervals. The other ends of the two pay-off shafts 14 and the other ends of the two winding shafts 19 are rotatably installed on the two support frames 18 respectively. The other ends of the two pay-off shafts 14 and the two winding shafts 19 are fixedly sleeved with linkage gears 20, and the two linkage gears 20 located on the same side are meshed with each other.

[0044] In this embodiment, when the pay-off shaft 14 and the pay-off roller 16 rotate, the meshing action between the two linkage gears 20 can drive the winding shaft 19 and the winding roller 17 to rotate synchronously in the opposite direction, so that when one end of the wire rope 13 pays off, the other end is synchronously wound up, so that the wire rope 13 is always in a tensioned state.

[0045] like Figure 8 and Figure 9 As shown, the inner wall cleaning mechanism also includes an annular rotating plate 33, a lower annular cavity 31 is opened in the lifting frame 10, an annular groove is opened at the bottom of the lower annular cavity 31, the annular rotating plate 33 is rotatably installed in the lower annular cavity 31, and the lower part of the lower annular cavity 31 is rotatably set in the annular groove. Specifically, sealing grooves are opened on both sides of the annular groove, and sealing gaskets 34 are set in the two sealing grooves. The two sealing gaskets 34 are both fitted with the annular rotating plate 33, and multiple scrapers 29 are fixedly installed on the annular rotating plate 33. 3, multiple scrapers 29 are in contact with the inner wall of the circumference of the measuring cylinder 7, a spline sleeve 30 and a rotating rod 45 are rotatably installed in the lifting frame 10, the spline sleeve 30 and the rotating rod 45 are respectively located on both sides of the lifting frame 10, and the outer walls of the spline sleeve 30 and the rotating rod 45 are fixedly sleeved with a transmission gear 35, and the inner wall of the circumference of the annular rotating plate 33 is fixedly mounted with an annular rack 36 that meshes with the two transmission gears 35, and the outer walls of the spline sleeve 30 and the rotating rod 45 are fixedly sleeved with a cam 40.

[0046] In this embodiment, when the spline sleeve 30 rotates, the meshing action between the transmission gear 35 and the annular rack 36 can drive the annular rack 36 and the annular rotating plate 33 to realize the rotation function. When the annular rotating plate 33 rotates, it can drive multiple scrapers 29 to rotate synchronously to clean the inner wall of the circumference of the measuring cylinder 7.

[0047] like Figure 3 、 Figure 4 、 Figure 8 and Figure 9As shown, the inner wall cleaning mechanism also includes a spline sleeve 46, which is rotatably installed on the top of the measuring cylinder 7, and a drive motor 48 is fixedly installed on the bottom of the equipment box 6. Specifically, the drive motor 48 can be controlled by a PLC controller 50. The output shaft of the drive 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 sleeve 30, and the spline shaft 47 is located between the spline sleeve 46 and the spline sleeve 30.

[0048] In this embodiment, the driving motor 48 is started to rotate the spline sleeve 46, and the spline shaft 47 is rotated synchronously by the rotation of the spline sleeve 46. The spline shaft 47 and the spline sleeve 30 are matched to each other, so that the spline sleeve 30 can rotate.

[0049] like Figure 7 、 Figure 8 and Figure 9 As shown, the hole cleaning mechanism also includes two extrusion plates 38. Two upper cavities 32 are provided in the lifting frame 10. The two extrusion plates 38 are respectively slidably installed in the two upper cavities 32. The top and bottom of the two upper cavities 32 are provided with limiting grooves. Limiting sliders 39 are slidably installed in the four limiting grooves. The four limiting sliders 39 are respectively fixedly connected to the extrusion plates 38 on the corresponding sides. The sides of the two extrusion plates 38 away from each other are fixedly installed with telescopic shafts 42. The ends of the two dredging shafts 41 are provided with telescopic grooves. The two telescopic shafts 42 are respectively slidably installed in the two telescopic grooves. The ends of the two telescopic shafts 42 are fixedly installed with avoidance springs 43. The outer walls of the telescopic shaft 42 and the dredging shaft 41 are jointly sleeved with a compression spring 44.

[0050] In this embodiment, the control motor 51 is controlled by the PLC controller 50, so that the lifting frame 10 can stop moving when it moves to the specified position. At this time, the dredging shaft 41 corresponds to the position of the balancing hole 37. The rotation of the spline sleeve 30 drives the cam 40 to rotate synchronously. The cam 40 squeezes the extrusion plate 38 when it rotates, and drives the extrusion plate 38 to move horizontally, so that the telescopic shaft 42 and the dredging shaft 41 are driven to move synchronously into the balancing hole 37 through the extrusion plate 38 to clean foreign matter in the balancing hole 37. When the spline sleeve 30 continues to rotate, the squeezing effect of the cam 40 on the extrusion plate 38 can be released, so that the extrusion plate 38 can achieve a reset function under the elastic action of the compression spring 44, and then drive the dredging shaft 41 to achieve synchronous reset, thereby avoiding the lifting frame 10 from getting stuck during the lifting process.

[0051] like Figure 7As shown, the bottom end of the measuring cylinder 7 is detachably mounted with a bottom cover 24. Two arc-shaped holes are provided on both sides of the bottom of the measuring cylinder 7. A U-shaped plate 25 is slidably mounted on the water level sensor 8. Both sides of the U-shaped plate 25 are arc-shaped, with the opening of the U-shaped plate 25 facing downward. Both sides of the U-shaped plate 25 are provided with multiple through holes. The bottom ends of the measuring cylinder 7 and the bottom cover 24 each have two circular holes, in which slide rods 26 are slidably mounted. The top ends of the two slide rods 26 are fixedly mounted on the U-shaped plate 25. The bottom end of the measuring cylinder 7 has two circular grooves, and the outer walls of the two slide rods 26 are sleeved with reset springs 27. A clearance groove is provided on both sides of the bottom of the measuring cylinder 7 and the bottom cover 24. The middle part of the U-shaped plate 25 is located in the measuring cylinder 7, and the vertical parts on both sides are located in the clearance groove. When the two vertical parts are directly opposite 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.

[0052] In this embodiment, the setting of two arc-shaped holes can allow water to quickly enter the measuring cylinder 7. The setting of the U-shaped plate 25 can close the arc-shaped hole 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.

[0053] 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 cylinder 7. The displacement sensor is a prior art and its specific working principle is not described in detail. 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 it from 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.

[0054] The working principle and usage process of the present invention are as follows: When in use, the water level is monitored in real time through the cooperation of the water level sensor 8 and the float 9. When the measuring cylinder 7 needs to be cleaned, the drive motor 48 is first started to drive the spline sleeve 46 and the spline shaft 47 to rotate synchronously. When the spline shaft 47 rotates, the spline sleeve 30 is driven to rotate synchronously through the connection between the spline shaft sleeve 30, and 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, it can drive multiple scrapers 29 to rotate synchronously. The inner wall of the measuring cylinder 7 is cleaned by the multiple scrapers 29, and foreign matter attached to the inner wall of the measuring cylinder 7 is removed. Through the setting of the filter cylinder 28, the cleaned foreign matter can be blocked, so that the foreign matter remains between the measuring cylinder 7 and the filter cylinder 28.

[0055] The start control motor 51 drives one of the pay-off shafts 14 to rotate, and under the meshing action of the two synchronous pulleys 15 and the synchronous belt, drives the other pay-off shaft 14 to rotate synchronously, so that the two pay-off rollers 16 rotate synchronously. When the two pay-off shafts 14 rotate, through the meshing action between multiple linkage gears 20, the two winding shafts 19 and the two winding rollers 17 can be driven to rotate synchronously in the opposite direction. Through the reverse rotation between the winding roller 17 and the pay-off roller 16 and the reversing effect of the fixed pulley 23 on the wire rope 13, the two arc-shaped lifting blocks 12 are driven to move downward synchronously, and cooperate with multiple scrapers 29 to continuously clean the inner wall of the measuring cylinder 7.

[0056] When the spline sleeve 30 rotates, the meshing action between the transmission gear 35 and the annular rack 36 can drive the other transmission gear 35 and the rotating rod 45 to rotate synchronously. When the spline sleeve 30 and the rotating rod 45 rotate, the two cams 40 can be driven to rotate synchronously. The squeezing action of the cam 40 on the squeezing plate 38 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, the elastic action of the avoidance spring 43 can make the telescopic shaft 42 move horizontally in the telescopic groove, thereby playing an avoidance function. After the lifting frame 10 moves a fixed distance, the dredging shaft 41 corresponds to the position of the balancing hole 37. At this time, the control motor 51 stops working, so that the cam 40 squeezes the squeezing plate 38 when rotating. , so that the extrusion plate 38 drives the telescopic shaft 42 and the dredging shaft 41 to move horizontally synchronously into the balancing hole 37 during movement, and the foreign matter in the balancing hole 37 is cleaned by the dredging shaft 41, thereby realizing the cleaning function of the balancing hole 37. When the extrusion plate 38 moves horizontally, it can compress the compression spring 44. When the spline sleeve 30 continues to rotate, it drives the cam 40 to release the extrusion effect between the extrusion plate 38. Through the elastic action of the compression spring 44, the extrusion plate 38, the telescopic shaft 42, and the dredging shaft 41 can be driven to reset synchronously, and the clamping between the dredging shaft 41 and the balancing hole 37 is released, so that the control motor 51 can work again, driving 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.

[0057] 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 channel under the action of the water flow, preventing the cleaned foreign matter from remaining in the measuring cylinder 7 and continuing to breed. When the entire cleaning process is completed, the drive motor 48 is turned off, so that the cam 40 releases the squeezing effect on the squeezing plate 38, and the control motor 51 is started to rotate its output shaft in the opposite direction, thereby driving the two arc-shaped lifting blocks 12 and the lifting frame 10 to move in the opposite direction and reset.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A water level monitoring device for water conservancy surveying and mapping, comprising a pole (1), characterized in that: The vertical pole (1) is detachably mounted with a control box (2), a solar panel (3), a camera (4), and a mounting frame (5); an equipment box (6) is provided on the top of the mounting frame (5); a measuring cylinder (7) is fixedly mounted on the bottom of the equipment box (6); a measuring mechanism is provided in the measuring cylinder (7); the measuring mechanism includes a water level sensor (8); the water level sensor (8) is provided in the measuring cylinder (7); and a float (9) is provided on the outer sliding sleeve of the water level sensor (8); A lifting frame (10) is movably provided in the measuring cylinder (7), and the lifting frame (10) is annular. A lifting mechanism is provided on the outer wall of the lifting frame (10), and the lifting mechanism is used to drive the lifting frame (10) to realize the lifting function. An inner wall cleaning mechanism is provided at the bottom of the lifting frame (10), and the inner wall cleaning mechanism includes a filter cylinder (28) and a plurality of scrapers (29). The filter cylinder (28) is fixedly installed at the bottom of the lifting frame (10), and the plurality of scrapers (29) are movably provided at the bottom of the lifting frame (10). The scrapers (29) are located outside the filter cylinder (28), and the plurality of scrapers (29) are provided around the filter cylinder (28). The float (9) can slide through the lifting frame (10); The measuring cylinder (7) is provided with a plurality of balancing holes (37), and a hole cleaning mechanism is provided in the lifting frame (10), wherein the hole cleaning mechanism comprises two dredging shafts (41), and the two dredging shafts (41) are both slidably mounted in the lifting frame (10) and respectively adapted to the plurality of balancing holes (37); The inner wall cleaning mechanism also includes an annular rotating plate (33), a plurality of scrapers (29) are fixedly mounted on the bottom of the annular rotating plate (33), and the plurality of scrapers (29) are in contact with the inner wall of the peripheral side of the measuring cylinder (7). A spline shaft sleeve (30) and a rotating rod (45) are rotatably mounted 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), and the outer walls of the spline shaft sleeve (30) and the rotating rod (45) are fixedly sleeved with a transmission gear (35), and the inner wall of the peripheral side of the annular rotating plate (33) is fixedly mounted with an annular rack (36) meshing with the two transmission gears (35), and the outer walls of the spline shaft sleeve (30) and the rotating rod (45) are fixedly sleeved with a cam (40); The hole cleaning mechanism also includes two squeezing plates (38); the sides of the two squeezing plates (38) away from each other are fixedly mounted with telescopic shafts (42); the ends of the two dredging shafts (41) are provided with telescopic grooves; the outer walls of the telescopic shafts (42) and the dredging shafts (41) are jointly sleeved with compression springs (44); the lifting frame (10) stops moving when it moves to a specified position, at which time the dredging shafts (41) correspond to the positions of the balancing holes (37), and the cams (40) are driven to rotate synchronously through the rotation of the spline sleeve (30), and the cams (40) are driven to rotate synchronously through the rotation of the spline sleeve (30). The squeezing effect on the squeezing plate (38) during rotation drives the squeezing plate (38) to move horizontally, thereby driving the telescopic shaft (42) and the dredging shaft (41) to move synchronously into the balancing hole (37) through the squeezing plate (38), thereby cleaning foreign matter in the balancing hole (37). When the spline sleeve (30) continues to rotate, the squeezing effect of the cam (40) on the squeezing plate (38) can be released, so that the squeezing plate (38) can achieve a reset function under the elastic action of the compression spring (44), thereby driving the dredging shaft (41) to achieve synchronous reset.

2. The water level monitoring device for water conservancy surveying and mapping according to claim 1, characterized in that: The lifting mechanism includes two arc-shaped lifting blocks (12), two axial lifting grooves (11) are provided on the 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 fixedly connected to the peripheral outer wall of the lifting frame (10), the tops of the two arc-shaped lifting blocks (12) are provided with connecting holes and sliding holes, steel wire ropes (13) are fixedly installed in the two connecting holes, the two steel wire ropes (13) are respectively slidably connected to the two sliding holes, a rotating shaft (22) is rotatably installed in the two lifting grooves (11), a fixed pulley (23) is fixedly sleeved on the two rotating shafts (22), and the two steel wire ropes (13) pass around the two fixed pulleys (23).

3. The water level monitoring device for water conservancy surveying and mapping according to claim 2, characterized in that: The lifting mechanism also 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 in the equipment box (6), two pay-off shafts (14) are rotatably installed on the first fixed plate (52), and the two pay-off shafts (14) are fixedly sleeved with pay-off rollers (16), and one end of the two steel wire ropes (13) is respectively wound around the two pay-off rollers (16), and two reeling shafts (19) are rotatably installed on the side of the second fixed plate (53), and the two reeling shafts (19) are fixedly sleeved with reeling rollers (17), and the other ends of the two steel wire ropes (13) are respectively wound around the two reeling rollers (17), and the two reeling shafts (19) are connected to the two reeling rollers (17) through a transmission component.

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

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

6. The water level monitoring device for water conservancy surveying and mapping according to claim 1, characterized in that: The inner wall cleaning mechanism further comprises a spline sleeve (46), the spline sleeve (46) being rotatably mounted on the top of the measuring cylinder (7), a driving motor (48) being fixedly mounted on the bottom inner wall of the equipment box (6), an output shaft of the driving motor (48) being fixedly connected to the end of the spline sleeve (46), a spline shaft (47) being slidably mounted in the spline sleeve (46), and the spline shaft (47) being slidably connected to the spline shaft sleeve (30).

7. The water level monitoring device for water conservancy surveying and mapping according to claim 1, characterized in that: The bottom end of the measuring cylinder (7) is detachably mounted with a bottom cover (24), and the outer wall of the measuring cylinder (7) is provided with two arc-shaped holes. 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. Both sides of the U-shaped plate (25) are provided with a plurality of through holes. The bottom ends of the measuring cylinder (7) and the bottom cover (24) are provided with two circular holes, and sliding rods (26) are slidably mounted in the two circular holes. The top ends of the two sliding rods (26) are fixedly mounted on the bottom inner wall of the U-shaped plate (25). The bottom end of the measuring cylinder (7) is provided with two circular grooves, and the outer walls of the circumferential sides of the two sliding rods (26) are sleeved with reset springs (27).

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