Anti-silt water level measuring device for hydrological monitoring

Abstract

The present application relates to water level measurement technical field, especially a kind of for hydrological monitoring anti-silt water level measuring device, including, floating mechanism, including floating disc and the load-bearing disc of being fixed on the top surface of floating disc, the middle part of floating disc is opened with through groove along vertical direction, and through groove is provided with buoyancy measurer;Adjusting measurement mechanism, including anti-blocking component, auxiliary measurement component and first motor;And, set on the load-bearing disc above power supply control mechanism;Anti-blocking component includes first connecting ring, second connecting ring and third connecting ring from top to bottom sequentially, and first connecting ring, second connecting ring and third connecting ring are coaxially arranged from outside to inside, first connecting ring and second connecting ring are connected by first radial connecting strip along circumferential direction array arrangement, this water level measuring device can effectively avoid solid silt and affect the data of measurement, and the data accuracy of the device is good, and overall applicability is strong.

Description

Technical Field

[0001] This invention relates to the field of water level measurement technology, and in particular to a water level measurement device for preventing siltation in hydrological monitoring. Background Technology

[0002] Water level measuring devices are core equipment used in hydrological monitoring to obtain data on water level changes in rivers, lakes, reservoirs, and other water bodies. Their data are the basis for flood forecasting, water resource allocation, ecological flow analysis, and the safe operation of water conservancy projects. Among various water level measurement technologies, floating water level measuring devices are a classic and widely used type of water level gauge. Floating water level measuring devices include fixed and drifting types, both of which are suitable for large areas of water bodies with rapid water level changes. For example, existing published documents CN113532595B-Dynamic Water Level Measuring Device and CN222689238U-A Floating Water Level Measuring Instrument both disclose a water level measuring device for hydrological monitoring. Although the measuring devices in the existing published documents can effectively monitor water levels, they still have the following shortcomings in practical use: 1. When existing water level measuring devices are used in waters with high water flow, after a long period of use, a certain amount of solid matter (solid garbage, branches and sand) will accumulate at the bottom of the detection head. The accumulation of these solid matter greatly affects the detection effect of the detection head, so it is necessary for staff to clean it regularly, and the overall practicality is poor. 2. Existing floating water level measuring devices mainly use buoyancy detectors to detect water levels. However, in areas with rapid water flow, the water is generally turbid (with a high mud content), which leads to changes in the density of the water. In this case, the accuracy of the buoyancy detector for water level detection is reduced, thus affecting the collection and feedback of accurate data. Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problem that existing water level measuring devices are prone to accumulating solid matter on the detection head and affecting the detection results in actual use, a silt-proof water level measuring device for hydrological monitoring is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a silt-prevention water level measuring device for hydrological monitoring, comprising: a floating mechanism, including a floating disk and a bearing disk fixed on the top surface of the floating disk; a through groove is formed in the middle of the floating disk along the vertical direction, and a buoyancy measuring device is disposed in the through groove; an adjusting measuring mechanism, including an anti-clogging component, an auxiliary measuring component, and a first motor; and a power supply control mechanism disposed above the bearing disk; the anti-clogging component includes a first connecting ring, a second connecting ring, and a third connecting ring arranged sequentially from top to bottom, and the first connecting ring, the second connecting ring, and the third connecting ring are arranged in a... The first and second connecting rings are connected by a first radial connecting strip arranged in a circumferential array from the outside in. The second and third connecting rings are connected by a second radial connecting strip arranged in a circumferential array. A screw rod is embedded in the output end of the first motor, and the screw rod is screwed into the first connecting ring. The bottom surface of the floating disk through the outer side of the slot is set as an upwardly recessed horn groove. A main groove for receiving the first radial connecting strip is opened vertically on the bottom surface of the floating disk at the horn groove position. A telescopic groove for receiving the first connecting ring is opened vertically in the floating disk at one end of the main groove.

[0006] The beneficial effects of this invention are as follows: When in use, this water level measuring device, by equipping an anti-clogging component on the outside of the buoyancy measuring device, can intercept solid objects and prevent them from directly adhering to the outside of the buoyancy measuring device. By rotating the screw rod driven by the first motor, the first connecting ring can move downward in the vertical direction, thereby realizing the downward movement of the entire anti-clogging component. In this way, the first radial connecting strip is moved downward and removed from the main receiving groove. Through the bowl-shaped design of the anti-clogging component, when the anti-clogging component moves downward, the water flow can wash away larger solid objects on the surface of the anti-clogging component, ensuring the long-term effective use of the buoyancy measuring device without the need for manual cleaning by staff, thus improving its overall practicality.

[0007] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, a plurality of circumferential connecting strips are fixedly arranged in an array along the long side of the first radial connecting strips between two adjacent first radial connecting strips, and a storage support groove for storing the circumferential connecting strips is opened on the bottom surface of the floating disk in the vertical direction.

[0008] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, the first radial connecting strip and the second radial connecting strip are both inclined in the vertical direction, and their lower ends are close to the third connecting ring side.

[0009] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring of the present invention, the lower end of the bearing plate is symmetrically fixed with L-shaped clamping plates on both sides, and the lower end of the bearing plate is also symmetrically fixed with connecting plates on both sides. The top surface of the bearing plate is provided with an installation groove for the clamping plates and connecting plates to fit together, and the connecting plates are fixedly connected to the top surface of the floating plate by bolts.

[0010] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, a connecting column is fixedly provided on the top surface of the buoyancy measuring device, and the connecting column is fixedly connected to the bottom surface of the bearing plate.

[0011] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, the lower end of the buoyancy measuring device extends to the bottom of the through groove, and the buoyancy measuring device is located inside the anti-clogging component.

[0012] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, the screw rod slides through the clamping plate and the floating plate, and the first motor is fixedly connected to the clamping plate; a T-shaped rod is fixed on the top surface of the telescopic groove, and the T-shaped rod is slidably sleeved in the first connecting ring.

[0013] Given that existing water level measuring devices have significant measurement data deviations when dealing with turbid water bodies, the present invention provides a further optimized and improved anti-siltation water level measuring device for hydrological monitoring. The auxiliary measuring components include a mounting plate, an arc rod, a second motor, and an ultrasonic measuring device. The mounting plate is fixedly connected to the top surface of the support plate, and an arc groove for placing the arc rod is provided on the side wall of the mounting plate. A mounting sleeve is fixedly installed at one end of the arc rod, while a gear column is fixedly installed at the other end. A rotating column is slidably sleeved in the gear column and fixedly connected to the mounting plate. An ultrasonic measuring device is fixedly sleeved in the mounting sleeve.

[0014] As a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, wherein: a gear plate is meshed on one side of the gear column, and the upper end of the gear plate is fixedly connected to the output shaft of the second motor, and the second motor is fixedly connected to the bearing plate; the first motor and the second motor are respectively located on both sides of the mounting plate.

[0015] Another beneficial effect of the present invention is that when the water level measuring device is in use and faces turbid water, the rotation of the gear disk is achieved by the operation of the second motor. Due to the meshing between the gear disk and the gear column, the rotation of the gear disk ultimately enables the arc rod to rotate around the rotating column as an axis, thereby enabling the ultrasonic measuring device at one end of the arc rod to move out of the arc groove and move to the water surface. The water level detection by the ultrasonic measuring device, combined with the buoyancy measuring device, improves the accuracy of the collected data.

[0016] In a preferred embodiment of the anti-siltation water level measuring device for hydrological monitoring according to the present invention, the power supply control mechanism is fixedly installed on the top surface of the mounting plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of a silt-prevention water level measuring device used for hydrological monitoring.

[0018] Figure 2 For the present invention Figure 1 A schematic diagram of the bottom of the structure.

[0019] Figure 3 For the present invention Figure 1 Exploded view of the structure.

[0020] Figure 4 For the present invention Figure 1 Vertical sectional view of the structure at the main storage slot.

[0021] Figure 5 For the present invention Figure 1 Vertical sectional view of the structure at the screw rod.

[0022] Figure 6 This is a schematic diagram of the overall structure of the floating disk in this invention.

[0023] Figure 7 This is a schematic diagram of the overall structure of the anti-clogging component in this invention.

[0024] Figure 8 This is a diagram showing the components to be assembled in this invention: the bearing plate, buoyancy measuring device, arc rod, mounting plate, and ultrasonic measuring device.

[0025] Figure 9 For the present invention Figure 1 Diagram showing the anti-clogging component moving downwards for flushing and dredging.

[0026] Figure 10 For the present invention Figure 1 A diagram showing the state of the ultrasonic measuring device deployed in the structure for measurement. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1, referring to Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present invention. This embodiment provides a water level measuring device for hydrological monitoring to prevent siltation. When the water level measuring device is in use, the floating mechanism 100 is used for the overall floating of the device in the water area, the adjusting measuring mechanism 200 is used for monitoring the water level, and the power supply control mechanism 300 is used for power control of the electrical components of the device and wireless signal transmission and interaction.

[0032] Specifically, it includes a floating mechanism 100, comprising a floating disk 101 and a bearing disk 102 fixed on the top surface of the floating disk 101. A through groove 101c is vertically opened in the middle of the floating disk 101, and a buoyancy measuring device 102c is installed in the through groove 101c. The buoyancy measuring device 102c is used for water level monitoring, which mainly obtains water level data by collecting buoyancy data and then using H=P / (ρ·g); an adjustment measuring mechanism 200, comprising an anti-clogging component 201, an auxiliary measuring component 202, and a first motor 203; and a power supply control mechanism 300 installed above the bearing disk 102. The lower ends of the support plate 102 are symmetrically fixed with L-shaped clamping plates 102a on both sides, and the lower ends of the support plate 102 are also symmetrically fixed with connecting plates 102b on both sides. The top surface of the support plate 102 is provided with a mounting groove 101c-1 for clearance fit between the clamping plates 102a and the connecting plates 102b. The connecting plates 102b are fixedly connected to the top surface of the floating plate 101 by bolts, thus realizing a detachable connection between the support plate 102 and the floating plate 101. The top surface of the buoyancy measuring device 102c is fixed with a connecting column 102c-1, and the connecting column 102c-1 is fixedly connected to the bottom surface of the support plate 102, thus realizing a detachable connection between the buoyancy measuring device 102c and the support plate 102. The lower end of the buoyancy measuring device 102c extends to the bottom of the through groove 101c, and the buoyancy measuring device 102c is located inside the anti-blocking component 201, thus intercepting solid objects outside the buoyancy measuring device 102c.

[0033] See details Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the anti-blocking component 201 includes a first connecting ring 201a, a second connecting ring 201b, and a third connecting ring 201c arranged sequentially from top to bottom. The first connecting ring 201a, the second connecting ring 201b, and the third connecting ring 201c are coaxially arranged from the outside in. The first connecting ring 201a and the second connecting ring 201b are connected by a first radial connecting strip 201a-1 arranged in a circumferential array, and the second connecting ring 201b and the third connecting ring 201c are connected by a second radial connecting strip 201c-1 arranged in a circumferential array. This forms an interception net outside the buoyancy measuring device 102c to intercept solid objects. The output end of the first motor 203 is fitted with... The screw rod 203a is screwed to the first connecting ring 201a. The screw rod 203a slides through the locking plate 102a and the floating plate 101. The first motor 203 is fixedly connected to the locking plate 102a. A T-shaped rod 101d is fixed on the top surface of the telescopic groove 101b-1. The T-shaped rod 101d is slidably sleeved in the first connecting ring 201a. This setting can limit and guide the movement of the first connecting ring 201a. The first radial connecting strip 201a-1 and the second radial connecting strip 201c-1 are both inclined in the vertical direction, and their lower ends are close to the side of the third connecting ring 201c. In this way, solids can be guided out under the action of water flushing. The bottom surface of the floating disk 101 outside the through-channel 101c is set as an upwardly recessed horn-shaped groove 101a. The horn-shaped groove 101a can form a cavity between the water surface and the floating disk 101. This cavity can provide suction to improve the floating stability of the floating disk 101. The bottom surface of the floating disk 101 at the horn-shaped groove 101a is provided with a main groove 101b for receiving the first radial connecting strip 201a-1 in the vertical direction. At one end of the main groove 101b, the floating disk 101 is provided with a telescopic groove 101b-1 for receiving the first connecting ring 201a in the vertical direction. The main groove 101b can receive the first radial connecting strip 201a-1, so that when dredging is not carried out, the center of gravity is kept as close as possible to the floating disk 101, avoiding the problem of poor stability caused by the center of gravity shifting downward in bad weather. In use, the anti-clogging component 201 covers the outside of the buoyancy measuring device 102c to intercept solid objects when monitoring the water level. After the interception continues for a period of time, the operation of the first motor 203 causes the screw rod 203a to rotate. Due to the helical engagement between the screw rod 203a and the first connecting ring 201a, the entire anti-clogging component 201 moves vertically. When the anti-clogging component 201 moves downward, it causes the solid objects at the bottom of the float plate 101 and on the outside of the anti-clogging component 201 to move downward. Driven by the water flow, the solid objects on the outside of the anti-clogging component 201 are flushed. After flushing is completed, the anti-clogging component 201 moves upward back to its original position, as shown in the attached diagram. Figure 9 As shown.

[0034] For further details, please see Figure 6 and Figure 7 As shown, multiple circumferential connecting bars 201a-2 are fixedly arranged in an array along the long side of the first radial connecting bar 201a-1 between two adjacent first radial connecting bars 201a-1. The circumferential connecting bars 201a-2 can increase the effect of intercepting solid objects. A storage support groove 101b-2 for storing the circumferential connecting bars 201a-2 is opened in the vertical direction on the bottom surface of the floating disk 101, so that the circumferential connecting bars 201a-2 can be stored without rinsing.

[0035] Example 2, refer to Figure 3 and Figure 8 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that in order to enable the device to perform effective and accurate water level data monitoring in turbid waters, this embodiment is proposed.

[0036] Specifically, the auxiliary measurement component 202 includes a mounting plate 202a, an arc rod 202b, a second motor 202c, and an ultrasonic measuring instrument 202d. The mounting plate 202a is fixedly connected to the top surface of the support plate 102, and an arc groove 202a-1 for placing the arc rod 202b is formed on the side wall of the mounting plate 202a. One end of the arc rod 202b is fixedly provided with a mounting sleeve 202b-1, while the other end of the arc rod 202b is fixedly provided with a gear post 202b-2. A rotating column 202a-2 is slidably sleeved in the middle, and the rotating column 202a-2 is fixedly connected to the mounting plate 202a. An ultrasonic measuring instrument 202d is fixedly sleeved in the mounting sleeve 202b-1. The ultrasonic measuring instrument 202d determines the water level depth by means of ultrasonic waves. A gear plate 202c-1 is meshed on one side of the gear column 202b-2, and the upper end of the gear plate 202c-1 is fixedly connected to the output shaft of the second motor 202c. The second motor 202c is fixedly connected to the bearing plate 102. In use, the above-mentioned setup allows the gear column 202b-2 to rotate via the operation of the second motor 202c. Due to the meshing between the gear column 202b-2 and the gear disc 202c-1, the rotation of the gear column 202b-2 ultimately causes the arc rod 202b to rotate around the rotating column 202a-2 as its axis. Under this rotational effect, the ultrasonic measuring device 202d is moved to the water surface outside the floating disk 101, as shown in the attached diagram. Figure 10 As shown, the ultrasonic measuring instrument 202d monitors the water level.

[0037] See details Figure 8 As shown, the first motor 203 and the second motor 202c are respectively located on both sides of the mounting plate 202a, which ensures that the center of gravity is close to the center of the floating plate 101 and avoids tilting.

[0038] Example 3, referring to Figure 1 and Figure 3 This is the third embodiment of the present invention. This embodiment is based on any of the above embodiments, but differs in that it is proposed in order to realize the control of electrical components for data acquisition and the wireless transmission and interaction of data in this device.

[0039] Specifically, the power supply control mechanism 300 is fixedly installed on the top surface of the mounting plate 202a. The power supply control mechanism 300 includes at least an outer protective box, a controller, a wireless transmission module, and a power supply module. The outer protective box serves as a protective unit, the controller is used to control the electrical components in this device, the wireless transmission module is used to exchange data with the control center, and the power supply module is used to supply power to the operation of the electrical components. In addition, the upper part of the outer casing is equipped with photovoltaic panels, an anemometer, and signal lights. The photovoltaic panels can convert light energy into electrical energy and store it in the power supply module. The anemometer is used to detect the wind speed in the area, and the signal lights can serve as a warning at night.

[0040] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for measuring water level to prevent siltation in hydrological monitoring, comprising: The floating mechanism (100) includes a floating disk (101) and a bearing disk (102) fixed on the top surface of the floating disk (101). A through groove (101c) is provided in the middle of the floating disk (101) along the vertical direction, and a buoyancy measuring device (102c) is provided in the through groove (101c). The regulating measuring mechanism (200) includes an anti-blocking component (201), an auxiliary measuring component (202), and a first motor (203); and, A power supply control mechanism (300) is installed above the support plate (102). Its features are: The anti-blocking component (201) includes a first connecting ring (201a), a second connecting ring (201b), and a third connecting ring (201c) arranged sequentially from top to bottom. The first connecting ring (201a), the second connecting ring (201b), and the third connecting ring (201c) are coaxially arranged from the outside to the inside. The first connecting ring (201a) and the second connecting ring (201b) are connected by a first radial connecting strip (201a-1) arranged in a circumferential array. The second connecting ring (201b) and the third connecting ring (201c) are connected by a second radial connecting strip (201c-1) arranged in a circumferential array. A screw rod (203a) is embedded in the output end of the first motor (203), and the screw rod (203a) is screwed into the first connecting ring (201a). The bottom surface of the floating disk (101) outside the through groove (101c) is set as an upwardly recessed horn groove (101a). A main receiving groove (101b) for receiving the first radial connecting strip (201a-1) is opened vertically on the bottom surface of the floating disk (101) at the position of the horn groove (101a). A telescopic groove (101b-1) for receiving the first connecting ring (201a) is opened vertically in the floating disk (101) at one end of the main receiving groove (101b).

2. The anti-siltation water level measuring device for hydrological monitoring as described in claim 1, characterized in that: Multiple circumferential connecting strips (201a-2) are fixedly arranged in an array along the long side of the first radial connecting strip (201a-1) between two adjacent first radial connecting strips (201a-1). A storage support groove (101b-2) for storing the circumferential connecting strips (201a-2) is opened in the vertical direction on the bottom surface of the floating disk (101).

3. The anti-siltation water level measuring device for hydrological monitoring as described in claim 2, characterized in that: The first radial connecting strip (201a-1) and the second radial connecting strip (201c-1) are both inclined in the vertical direction, and their lower ends are close to the third connecting ring (201c).

4. The anti-siltation water level measuring device for hydrological monitoring as described in claim 2, characterized in that: The lower end of the bearing plate (102) is symmetrically fixed with L-shaped clamping plates (102a) on both sides, and the lower end of the bearing plate (102) is also symmetrically fixed with connecting plates (102b). The top surface of the bearing plate (102) is provided with an installation groove (101c-1) for clearance fit between the clamping plates (102a) and the connecting plates (102b), and the connecting plates (102b) are fixedly connected to the top surface of the floating plate (101) by bolts.

5. The anti-siltation water level measuring device for hydrological monitoring as described in claim 4, characterized in that: A connecting column (102c-1) is fixedly provided on the top surface of the buoyancy measuring device (102c), and the connecting column (102c-1) is fixedly connected to the bottom surface of the bearing plate (102).

6. The anti-siltation water level measuring device for hydrological monitoring as described in claim 5, characterized in that: The lower end of the buoyancy measuring device (102c) extends below the through slot (101c) and the buoyancy measuring device (102c) is located inside the anti-blocking assembly (201).

7. The anti-siltation water level measuring device for hydrological monitoring as described in claim 5, characterized in that: The screw rod (203a) slides through the clamping plate (102a) and the floating disk (101), and the first motor (203) is fixedly connected to the clamping plate (102a); A T-shaped rod (101d) is fixed on the top surface of the telescopic groove (101b-1), and the T-shaped rod (101d) is slidably sleeved in the first connecting ring (201a).

8. The anti-siltation water level measuring device for hydrological monitoring as described in claim 7, characterized in that: The auxiliary measurement component (202) includes a mounting plate (202a), an arc rod (202b), a second motor (202c), and an ultrasonic measuring instrument (202d). The mounting plate (202a) is fixedly connected to the top surface of the bearing plate (102), and an arc groove (202a-1) for placing the arc rod (202b) is provided on the side wall of the mounting plate (202a). One end of the arc rod (202b) is fixedly provided with a mounting sleeve (202b-1), and the other end of the arc rod (202b) is fixedly provided with a gear column (202b-2). A rotating column (202a-2) is slidably sleeved in the gear column (202b-2), and the rotating column (202a-2) is fixedly connected to the mounting plate (202a). The ultrasonic measuring instrument (202d) is fixedly sleeved in the mounting sleeve (202b-1).

9. A water level measuring device for preventing siltation in hydrological monitoring as described in claim 8, characterized in that: A gear disc (202c-1) is meshed on one side of the gear column (202b-2), and the upper end of the gear disc (202c-1) is fixedly connected to the output shaft of the second motor (202c). The second motor (202c) is fixedly connected to the bearing plate (102). The first motor (203) and the second motor (202c) are respectively located on both sides of the mounting plate (202a).

10. A silt-prevention water level measuring device for hydrological monitoring as described in claim 9, characterized in that: The power supply control mechanism (300) is fixedly installed on the top surface of the mounting plate (202a).

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