Water level monitoring device for hydrological monitoring

Abstract

The utility model discloses a water level monitoring device for hydrological monitoring, and relates to the field of hydrological water level monitoring, the water level monitoring device comprises a monitoring shell and a water level monitoring device, the bottom of the monitoring shell is provided with a telescopic protection mechanism, the telescopic protection mechanism comprises a hollow fixed cylinder and a hollow telescopic assembly, one end of the hollow fixed cylinder is fixedly connected with the monitoring shell, the other end of the hollow fixed cylinder is connected with the hollow telescopic assembly, the hollow telescopic assembly comprises a plurality of hollow sliding cylinders which are sequentially sleeved in a sliding mode, a protection space is formed among the hollow sliding cylinders, the hollow sliding cylinders are arranged in a hollowed-out mode, and the water level monitoring device is arranged in the protection space. The protective barrier composed of the hollow sliding barrel can effectively prevent floating objects from blocking a monitoring area, accurate water level real-time monitoring is achieved, and therefore the problems of monitoring failure and inaccurate data in a complex hydrological environment are fundamentally solved.

Description

Technical Field

[0001] This utility model relates to the field of hydrological water level monitoring, specifically a water level monitoring device for hydrological monitoring. Background Technology

[0002] Hydrological monitoring, as a core foundation for water resource management, flood control and disaster reduction, and ecological protection, directly impacts national water conservancy project decision-making, regional water resource allocation, and public safety through the accuracy and real-time nature of its data. Water level monitoring, a key indicator in hydrological monitoring, requires continuous tracking of water level changes in various water bodies such as rivers, lakes, reservoirs, and groundwater, providing crucial data support for hydrological forecasting, water resource assessment, and the operation and scheduling of water conservancy projects. With the intensification of global climate change and the increasing frequency of extreme hydrological events (such as torrential rains and floods, droughts and water shortages), traditional water level monitoring methods are no longer sufficient to meet the high demands for monitoring accuracy, stability, and adaptability under the new circumstances. The industry's need for efficient and reliable water level monitoring devices is becoming increasingly urgent.

[0003] Traditional water level monitoring mainly relies on manual observation. Although manual observation is simple to operate, it is limited by high labor costs and low observation frequency, making it impossible to capture water level changes in real time. In severe weather (such as heavy rain, heavy snow, and strong winds) or in remote monitoring points (such as mountain streams and reservoirs in uninhabited areas), manual inspections pose safety risks, and the timeliness and continuity of data are difficult to guarantee.

[0004] In recent years, with the development of sensor and automation technologies, electronic water level monitoring devices (such as pressure water level sensors and radar water level sensors) have gradually replaced traditional equipment, realizing the automatic acquisition and remote transmission of water level data. However, existing electronic water level monitoring devices still have many technical pain points in practical applications: the most important being poor anti-interference capability. For contact monitoring, the water level sensor needs to be placed directly exposed or simply wrapped in water. In complex hydrological environments (such as high-velocity water bodies, rivers with high sediment content, and low-temperature frozen water areas), the sensor is easily damaged by water flow, sediment abrasion, or ice compression, leading to monitoring failure. For non-contact monitoring, when floating objects in the water move to the monitoring area, they will obstruct the detection, resulting in inaccurate monitoring data.

[0005] In summary, current automatic water level monitoring equipment is insufficient to meet the requirements for accurate water level monitoring in complex hydrological environments. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water level monitoring device for hydrological monitoring, which can achieve accurate real-time monitoring of water level in complex hydrological environments.

[0007] The purpose of this utility model is achieved through the following technical solution: a water level monitoring device for hydrological monitoring, comprising a monitoring shell and a water level monitoring device, wherein a telescopic protective mechanism is provided at the bottom of the monitoring shell, the telescopic protective mechanism comprising a hollow fixed cylinder and a hollow telescopic component, one end of the hollow fixed cylinder being fixedly connected to the monitoring shell, and the other end being connected to the hollow telescopic component, the hollow telescopic component comprising a plurality of hollow sliding cylinders that are sequentially slidably fitted together, a protective space being formed between the plurality of hollow sliding cylinders, the hollow sliding cylinders being hollowed out, and the water level monitoring device being arranged within the protective space.

[0008] Furthermore, the outer wall of the hollow slide cylinder is fixed with a guide slider, and the inner wall of the hollow slide cylinder is provided with a guide groove along its own axial direction. The guide slider of the hollow slide cylinder is slidably adapted to the guide groove of the adjacent hollow slide cylinder.

[0009] Furthermore, a groove is provided on the top of the monitoring housing, and a telescopic component control mechanism is installed in the groove. The telescopic component control mechanism includes a take-up and release frame and a winding roller. The take-up and release frame is fixed to the monitoring housing, and the winding roller is rotatably mounted on the take-up and release frame. One end of the winding roller is connected to a manual turn wheel, and a pull line is wound on the winding roller. The pull line is connected to the innermost hollow slide cylinder of the hollow telescopic component.

[0010] Furthermore, a limiting disk is fixed to the other end of the winding roller. The side wall of the limiting disk is provided with a number of slots along its own circumference. A limiting groove is provided on the top of the monitoring housing. The limiting groove communicates with the groove. The card is inserted into the limiting groove and one of the slots at the same time.

[0011] Furthermore, the hollow telescopic assembly also includes a disassembly cylinder, the top of which is provided with an external thread, and the bottom of which is provided with an internal thread. The disassembly cylinder is threadedly connected to the hollow fixed cylinder, and the end of the disassembly cylinder away from the hollow fixed cylinder is connected to the outermost hollow sliding cylinder of the hollow telescopic assembly.

[0012] Furthermore, the monitoring housing is mounted on an installation mechanism, which includes an installation plate and installation beams. The installation plate is fixed to a wall or ground by expansion bolts. Two installation beams are symmetrically fixed to the side wall of the installation plate. The installation beams are perpendicular to the installation plate and move through the monitoring housing.

[0013] Furthermore, each of the mounting beams is equipped with a locking assembly, which includes a locking pin and a spring. The monitoring housing has an inner cavity, and a through hole is horizontally opened through the side wall of the monitoring housing. The mounting beam passes through the through hole. The top of the monitoring housing has a countersunk hole and a round hole in sequence, with the diameter of the countersunk hole being larger than the diameter of the round hole. A pull plate is movably installed in the countersunk hole. One end of the locking pin is fixedly connected to the pull plate, and the other end extends through the round hole to the inner cavity. A spring plate is fixedly sleeved on the locking pin, and the spring is sleeved on the locking pin. The two ends of the spring are respectively connected to the spring plate and the monitoring housing. The mounting beam has several locking holes spaced apart along its own length. Under normal conditions, the locking pin is inserted into one of the locking holes.

[0014] Furthermore, a sealing top plate is connected to the top of the monitoring housing by screws, and a through hole is formed on the sealing top plate.

[0015] Furthermore, the bottom of the sealing top plate is provided with an upper annular groove, and the top of the monitoring housing is provided with a lower annular groove. The annular sealing ring is interference-fitted into the upper annular groove and the lower annular groove.

[0016] The beneficial effects of this utility model are:

[0017] A comprehensive protection system is constructed through a multi-layered telescopic protective mechanism: an adjustable protective barrier is formed by several hollow sliding cylinders that slide in sequence. The water level monitoring device is installed inside the protective barrier. For contact-type water level monitoring, the hollow design of the cylinders ensures that the water body can normally contact the sensor to achieve the monitoring function, while preventing large floating objects, aquatic plants, and other debris from directly impacting the sensor. At the same time, it weakens the direct scouring force of the water flow on the sensor, reduces the adhesion and wear of sediment on the sensor surface, and extends the service life of the water level monitoring device. For non-contact water level monitoring, the protective barrier composed of hollow cylinders can effectively prevent floating objects from obstructing the monitoring area, achieving accurate real-time water level monitoring. This fundamentally solves the problems of monitoring failure and inaccurate data in complex hydrological environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a water level monitoring device for hydrological monitoring according to the present invention;

[0019] Figure 2 This is a top view of a water level monitoring device for hydrological monitoring according to the present invention;

[0020] Figure 3 for Figure 2 Sectional view along line AA;

[0021] Figure 4 This is a schematic diagram of the structure of the contact sensor used in this utility model;

[0022] Figure 5 for Figure 3 Enlarged view at point C;

[0023] Figure 6 This is a schematic diagram of the limiting plate in a water level monitoring device for hydrological monitoring according to the present invention;

[0024] Figure 7 for Figure 2 Sectional view along the BB direction;

[0025] In the diagram, 1-monitoring housing, 2-water level monitoring device, 3-hollow fixed cylinder, 4-hollow slide cylinder, 5-guide slider, 6-guide slide groove, 7-groove, 8-retracting rack, 9-winding roller, 10-manual rotating wheel, 11-limiting plate, 12-slot, 13-limiting groove, 14-card, 15-pull wire, 16-disassembly cylinder, 17-mounting plate, 18-mounting beam plate, 19-locking pin, 20-spring, 21-through hole, 22-countersunk hole, 23-round hole, 24-pull plate, 25-spring plate, 26-locking hole, 27-sealing top plate, 28-wire passage hole, 29-upper annular groove, 30-lower annular groove, 31-annular sealing ring. Detailed Implementation

[0026] Example 1

[0027] like Figures 1 to 7As shown, a water level monitoring device for hydrological monitoring includes a monitoring housing 1 and a water level monitoring device 2. A telescopic protective mechanism is provided at the bottom of the monitoring housing 1. The telescopic protective mechanism includes a hollow fixed cylinder 3 and a hollow telescopic assembly. One end of the hollow fixed cylinder 3 is fixedly connected to the monitoring housing 1, and the other end is connected to the hollow telescopic assembly. The hollow telescopic assembly includes several hollow sliding cylinders 4 that slide sequentially, forming a protective space between them. The hollow sliding cylinders 4 are hollowed out. The water level monitoring device 2 is arranged within the protective space. The monitoring housing 1 is fixedly installed near the water area to be monitored, so that the hollow telescopic assembly is located within the water area. The hollow sliding cylinders 4 slide out sequentially, allowing parts of the hollow sliding cylinders 4 to enter the water area. The hollowed-out design of the hollow sliding cylinders 4 ensures that the water level inside the hollow sliding cylinders 4 matches the water level of the surrounding area. For contact-type water level monitoring, the water level monitoring device 2 is directly submerged in water. The cable of the water level monitoring device 2 passes through the monitoring housing 1 for wiring. The hollow design of the hollow slide tube 4 ensures normal contact between the water body and the water level monitoring device 2 to achieve the monitoring function, while preventing large floating objects, aquatic plants, and other debris from directly impacting the sensor. It also reduces the direct scouring force of the water flow on the sensor, reduces the adhesion and wear of sediment on the sensor surface, and extends the service life of the water level monitoring device 2. For non-contact water level monitoring, the water level monitoring device 2 is directly installed at the bottom of the monitoring housing 1. The protective barrier formed by the hollow slide tube effectively prevents floating objects from obstructing the monitoring area, achieving accurate real-time water level monitoring. This fundamentally solves the problems of monitoring failure and inaccurate data in complex hydrological environments. The telescopic protective mechanism extends to a length greater than the warning value of water level drop, ensuring that the water level monitoring device 2 remains within the protection range of the telescopic protective mechanism. In specific implementation, the water level monitoring device 2 uses one of the following: ultrasonic sensor, float sensor, or radar sensor.

[0028] Example 2

[0029] Based on Example 1, such as Figures 1 to 7 As shown, the monitoring housing 1 is mounted on the installation mechanism, which includes an installation plate 17 and an installation beam plate 18. The installation plate 17 is fixed to the wall or ground by expansion bolts. Two installation beam plates 18 are symmetrically fixed to the side wall of the installation plate 17. The installation beam plates 18 are perpendicular to the installation plate 17 and can move through the monitoring housing 1. The top surface and side wall of the installation plate 17 are provided with through holes. When the monitoring housing 1 needs to be installed on the ground of the water area, it is fixed by using the through holes on the top surface of the installation plate 17. When the monitoring housing 1 needs to be installed on the side wall of the water area, it is installed by using the through holes on the side wall of the installation plate 17. This allows for the selection of a suitable installation method according to the local environment. Furthermore, the monitoring housing 1 can slide on the installation beam plate 18 to adjust the monitoring position, allowing the hollow telescopic component and the water level monitoring device 2 to enter the water area to achieve water level monitoring.

[0030] Furthermore, each mounting beam 18 is equipped with a locking assembly, which includes a locking pin 19 and a spring 20. The monitoring housing 1 has an inner cavity, and a through hole 21 is horizontally opened through the side wall of the monitoring housing 1. The mounting beam 18 passes through the through hole 21. The top of the monitoring housing 1 has a countersunk hole 22 and a round hole 23 opened sequentially. The diameter of the countersunk hole 22 is larger than the diameter of the round hole 23. A pull plate 24 is movably installed in the countersunk hole 22. One end of the locking pin 19 is fixedly connected to the pull plate 24, and the other end extends through the round hole 23 to the inner cavity. A spring plate 25 is fixedly sleeved on the locking pin 19, and the spring 20 is sleeved on the locking pin 19. The two ends of the spring 20 are respectively connected to the spring plate 25 and the monitoring housing 1. The mounting beam 18 has a number of locking holes 26 spaced apart along its own length. Under normal conditions, the locking pin 19 is inserted into one of the locking holes 26. A pull rope is connected to the top of the pull plate 24. The rope facilitates pulling the pull plate 24, and allows one hand to pull both pull plates 24 simultaneously. This causes the pull plate 24 to move the locking pin 19 upward, compressing the spring 20 and disengaging it from the locking hole 26. This unlocks the connection between the monitoring housing 1 and the mounting beam 18. Once the position of the monitoring housing 1 is properly adjusted, the pull plate 24 is released, causing the locking pin 19 to move downward under the reaction force of the spring 20. At this point, the locking pin 19 will either insert into the locking hole 26 or rest against the mounting beam 18. The insertion of the locking pin 19 into the locking hole 26 is determined by whether the pull plate 24 enters the countersunk hole 22. If the pull plate 24 is not fully inserted into the countersunk hole 22, the position of the monitoring housing 1 is finely adjusted. When the nearest locking hole 26 corresponds to the locking pin 19, the locking pin 19 is inserted into the locking hole 26 under the action of the spring 20. At this point, the pull plate 24 is fully inserted into the countersunk hole 22, thus completing the position adjustment of the monitoring housing 1.

[0031] Example 3

[0032] Based on Example 2, such as Figures 1 to 3As shown, a sealing top plate 27 is connected to the top of the monitoring housing 1 by screws. A wire-passing hole 28 is formed through the sealing top plate 27. An upper annular groove 29 is formed at the bottom of the sealing top plate 27, and a lower annular groove 30 is formed at the top of the monitoring housing 1. An annular sealing ring 31 is interference-fitted into the upper annular groove 29 and the lower annular groove 30. Since the top of the monitoring housing 1 is provided with a countersunk hole 22 and a round hole 23, a sealing top plate 27 is further provided to prevent water from entering the monitoring housing 1. The annular sealing ring 31 is used for sealing, which can effectively prevent water from entering the monitoring housing 1. The wire-passing hole 28 is used for wiring the wire of the water level monitoring device 2. Waterproof cables are used, and the gap between the waterproof cable and the cable passage hole 28 is filled with sealant to achieve a complete seal. The water level monitoring device 2 has a certain winding length inside the monitoring housing 1, so that the sealing top plate 27 can be easily removed from the monitoring housing 1. Secondly, the wires of the water level monitoring device 2 can be connected by a socket and plug-in method. That is, the wires of the water level monitoring device 2 are connected to the socket, and the cable of the sealing top plate 27 is connected to the plug. After connecting the wires and cables, the sealing top plate 27 is installed on the monitoring housing 1. After removing the sealing top plate 27, the plug and socket are separated, and the sealing top plate can be completely removed. The operation is simple and quick.

[0033] Example 4

[0034] Based on Example 3, such as Figures 1 to 3 As shown, a guide slider 5 is fixed to the outer wall of the hollow slide cylinder 4, and a guide groove 6 is provided on the inner wall of the hollow slide cylinder 4 along its own axis. The guide slider 5 of the hollow slide cylinder 4 slides and adapts to the guide groove 6 of the adjacent hollow slide cylinder 4. The sliding connection between the hollow slide cylinders 4 is realized through the cooperation of the guide slider 5 and the guide groove 6. After the hollow telescopic component is unlocked, the hollow slide cylinder 4 can move downward automatically by its own gravity. When the guide slider 5 moves to the end of the guide groove 6, it moves to the limit position, so that the hollow telescopic component can automatically unfold and extend into the water area to realize the protection and monitoring of the water level.

[0035] Example 5

[0036] Based on Example 4, such as Figures 1 to 6As shown, a groove 7 is provided on the top of the monitoring housing 1. A telescopic component control mechanism is installed in the groove 7. The telescopic component control mechanism includes a take-up and release frame 8 and a winding roller 9. The take-up and release frame 8 is fixed to the monitoring housing 1. The winding roller 9 is rotatably mounted on the take-up and release frame 8. One end of the winding roller 9 is connected to a manual rotating wheel 10. A pull line 15 is wound on the winding roller 9. The pull line 15 is connected to the innermost hollow slide cylinder 4 of the hollow telescopic component. When the hollow telescopic component needs to be retracted, the sealing top plate 27 is removed first. Then, the manual rotating wheel 10 is manually rotated to make the winding roller 9 wind up the pull line 15. This pulls the lowermost hollow slide cylinder 4 upward through the pull line 15. When the hollow slide cylinder 4 moves to the upper limit position of the guide groove 6, it is in place. At this time, the hollow slide cylinder 4 drives the adjacent hollow slide cylinder 4 to move upward. In this way, the entire hollow telescopic component is retracted together, making the whole device smaller and easier to remove or install.

[0037] Example 6

[0038] Based on Example 5, such as Figures 1 to 6 As shown, a limiting disk 11 is fixed to the other end of the winding roller 9. The side wall of the limiting disk 11 is provided with several slots 12 along its own circumference. A limiting groove 13 is provided on the top of the monitoring housing 1. The limiting groove 13 communicates with the groove 7. The card 14 is inserted into the limiting groove 13 and one of the slots 12 at the same time. When the hollow telescopic component is retracted together, inserting the card 14 into the limiting groove 13 and one of the slots 12 at the same time can lock the winding roller 9, thereby locking the retracted state of the hollow telescopic component. Removing the card 14 can unlock the retracted state of the hollow telescopic component, and the hollow slide cylinder 4 will automatically unfold by its own gravity.

[0039] Example 7

[0040] Based on Example 6, such as Figures 1 to 3 As shown, the hollow telescopic assembly also includes a disassembly cylinder 16. The top of the disassembly cylinder 16 is provided with an external thread, and the bottom of the hollow fixing cylinder 3 is provided with an internal thread. The disassembly cylinder 16 is threadedly connected to the hollow fixing cylinder 3. The end of the disassembly cylinder 16 away from the hollow fixing cylinder 3 is connected to the outermost hollow sliding cylinder 4 of the hollow telescopic assembly. The disassembly cylinder 16 and the hollow fixing cylinder 3 are connected by threads, which facilitates the replacement of the hollow telescopic assembly. The hollow telescopic assembly of the corresponding length can be installed according to the water level monitoring range, so that the water level monitoring device 2 is always within the protection range of the hollow sliding cylinder 4 within the water level monitoring range.

Claims

1. A water level monitoring device for hydrological monitoring, characterized in that, The device includes a monitoring housing (1) and a water level monitoring device (2). The bottom of the monitoring housing (1) is provided with a telescopic protective mechanism. The telescopic protective mechanism includes a hollow fixed cylinder (3) and a hollow telescopic component. One end of the hollow fixed cylinder (3) is fixedly connected to the monitoring housing (1), and the other end is connected to the hollow telescopic component. The hollow telescopic component includes a plurality of hollow sliding cylinders (4) that are slidably fitted together in sequence. A protective space is formed between the plurality of hollow sliding cylinders (4). The hollow sliding cylinders (4) are hollowed out. The water level monitoring device (2) is arranged in the protective space.

2. The water level monitoring device for hydrological monitoring according to claim 1, characterized in that, The outer wall of the hollow slide cylinder (4) is fixed with a guide slider (5), and the inner wall of the hollow slide cylinder (4) is provided with a guide groove (6) along its own axis. The guide slider (5) of the hollow slide cylinder (4) slides and adapts to the guide groove (6) of the adjacent hollow slide cylinder (4).

3. The water level monitoring device for hydrological monitoring according to claim 1, characterized in that, The top of the monitoring housing (1) is provided with a groove (7), and a telescopic component control mechanism is installed in the groove (7). The telescopic component control mechanism includes a take-up and release frame (8) and a winding roller (9). The take-up and release frame (8) is fixed to the monitoring housing (1), and the winding roller (9) is rotatably mounted on the take-up and release frame (8). One end of the winding roller (9) is connected to a manual turn wheel (10), and a pull line (15) is wound on the winding roller (9). The pull line (15) is connected to the innermost hollow slide cylinder (4) of the hollow telescopic component.

4. A water level monitoring device for hydrological monitoring according to claim 3, characterized in that, The other end of the winding roller (9) is fixed with a limiting disk (11). The side wall of the limiting disk (11) is provided with several slots (12) along its own circumference. The top of the monitoring housing (1) is provided with a limiting groove (13). The limiting groove (13) is connected to the groove (7). The card (14) is inserted into the limiting groove (13) and one of the slots (12) at the same time.

5. A water level monitoring device for hydrological monitoring according to claim 1, characterized in that, The hollow telescopic assembly also includes a disassembly cylinder (16), the top of which is provided with an external thread, and the bottom of which is provided with an internal thread. The disassembly cylinder (16) is threadedly connected to the hollow fixed cylinder (3), and the end of the disassembly cylinder (16) away from the hollow fixed cylinder (3) is connected to the outermost hollow sliding cylinder (4) of the hollow telescopic assembly.

6. A water level monitoring device for hydrological monitoring according to claim 1, characterized in that, The monitoring housing (1) is mounted on the installation mechanism, which includes an installation plate (17) and an installation beam plate (18). The installation plate (17) is fixed to the wall or the ground by expansion bolts. Two installation beam plates (18) are symmetrically fixed to the side wall of the installation plate (17). The installation beam plates (18) are perpendicular to the installation plate (17) and move through the monitoring housing (1).

7. A water level monitoring device for hydrological monitoring according to claim 6, characterized in that, Each of the mounting beams (18) is equipped with a locking assembly, which includes a locking pin (19) and a spring (20). The monitoring housing (1) has an inner cavity, and a through hole (21) is horizontally opened through the side wall of the monitoring housing (1). The mounting beam (18) passes through the through hole (21). The top of the monitoring housing (1) has a countersunk hole (22) and a round hole (23) opened sequentially. The diameter of the countersunk hole (22) is larger than the diameter of the round hole (23). A pull plate (2) is movably installed in the countersunk hole (22). 4) One end of the locking pin (19) is fixedly connected to the pull plate (24), and the other end extends through the round hole (23) to the inner cavity. A spring plate (25) is fixedly sleeved on the locking pin (19). The spring (20) is sleeved on the locking pin (19). The two ends of the spring (20) are respectively connected to the spring plate (25) and the monitoring housing (1). The mounting beam plate (18) is provided with a number of locking holes (26) at intervals along its own length direction. Under normal conditions, the locking pin (19) is inserted into one of the locking holes (26).

8. A water level monitoring device for hydrological monitoring according to claim 1, characterized in that, The top of the monitoring housing (1) is connected to a sealing top plate (27) by screws, and a wire hole (28) is opened through the sealing top plate (27).

9. A water level monitoring device for hydrological monitoring according to claim 8, characterized in that, The bottom of the sealing top plate (27) is provided with an upper annular groove (29), and the top of the monitoring housing (1) is provided with a lower annular groove (30). The annular sealing ring (31) is interference-fitted into the upper annular groove (29) and the lower annular groove (30).

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