A monitoring device for evaluating river hydrological information and a method of using the same

Abstract

The application relates to a monitoring device for evaluating river hydrological information and a use method thereof, which comprises a floating body, a water quality sensor, a sample container, an avoidance hole, a ring-shaped cleaning component, a sampling pipe, a floating ball, a sample outlet hole, a transmission assembly and a suction pump; the suction pump is used for forming a negative pressure in the sample container, water samples enter the sample container under the action of the negative pressure, the floating ball drives the sampling pipe to move upward under the action of the buoyancy of the water body, the sampling pipe drives the water quality sensor to descend through the transmission assembly, impurities on the surface of the ring-shaped cleaning component are cleaned when the water quality sensor passes through the ring-shaped cleaning component, and the water quality sensor detects the water samples when the sampling pipe is blocked by the avoidance hole after rising to the sample outlet hole, the water pressure environment in the river, the suspended matters in the water and the flowing water in the river do not affect the precision of the water quality sensor, the monitoring value of the water quality sensor on the river hydrological information is closer to the actual value, and the accuracy of the hydrological department in evaluating the river hydrological information is improved.

Description

Technical Field

[0001] This invention relates to the field of hydrological monitoring technology, and in particular to a monitoring device for evaluating river hydrological information and its usage method. Background Technology

[0002] Hydrology refers to various phenomena in nature, such as changes and movements of water. Rivers are the lifeblood of the ecosystem, acting like "capillaries" connecting major rivers to urban and rural areas. Their hydrological conditions directly affect the lives of surrounding residents and agricultural production, impacting urban development and people's livelihoods. Under the influence of environmental changes and human activities, river management faces numerous challenges. Therefore, real-time monitoring of hydrological data (water level, flow rate, flow velocity, rainfall (snow), evaporation, sediment, ice formation, soil moisture, water quality, etc.) is necessary. Continuous hydrological data monitoring allows for timely detection and response to water quality issues, providing strong support for river management.

[0003] Currently, the main method for real-time monitoring of river hydrological parameters is through the establishment of hydrological monitoring systems, which transmit monitoring data wirelessly, significantly improving the efficiency of hydrological departments. These systems utilize water quality sensors to monitor river water quality. However, current water quality sensors are typically installed at predetermined depths within the river, providing long-term monitoring of water quality at a specific point. The accuracy of these sensors is affected by various factors. For example, different depths of the water quality sensor require it to withstand varying water pressures; excessively high pressure can cause deformation of the casing or seal failure, affecting measurement accuracy. Furthermore, suspended solids (such as silt and microorganisms) adhering to the sensor surface can alter measurement parameters, leading to measurement deviations. Additionally, the flowing water in the river can impact the sensor, causing vibrations that deviate from the target measurement value. Consequently, the monitored values ​​of the water quality sensors deviate significantly from the actual values, affecting the accurate assessment of river hydrological information by hydrological departments. Summary of the Invention

[0004] This invention provides a monitoring device and its usage method for evaluating river hydrological information, which can solve the problem in the prior art where the monitored values ​​of water quality sensors for river hydrological information deviate significantly from the actual values, affecting the accurate evaluation of river hydrological information by hydrological departments.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a monitoring device for evaluating river hydrological information and a method for using the same, wherein the monitoring device for evaluating river hydrological information in the present invention includes: floating body; A water quality sensor, used to monitor river hydrological information; A sample container is mounted on a float. The interior of the sample container is provided with clearance holes and annular cleaning components. The water quality sensor and the annular cleaning components correspond to each other in the vertical direction. The sampling tube is vertically slidably connected to the float. The clearance hole corresponds to the sampling tube in the vertical direction. A float ball located inside the sample container is provided at the upper part of the sampling tube. A sample outlet hole located above the float ball is provided on the sampling tube. A transmission assembly is connected to a water quality sensor and a sampling tube, respectively, and the water quality sensor and the sampling tube move in opposite directions. An air pump, the air inlet of which is connected to the sample container.

[0006] Preferably, the sample container is horizontally provided with a partition plate inside, which divides the sample container into a partition chamber and a sample chamber. The partition chamber is located above the partition plate, and the sample chamber is located below the partition plate. The partition plate has a through hole, and the annular cleaning component is disposed at the through hole.

[0007] Preferably, the transmission assembly includes: a first rack, which is rotatably connected to the upper end of the sampling tube and is vertically slidably connected to the sample container; a second rack, which is vertically slidably connected to the sample container; a first spur gear, which is rotatably connected to the upper end of the sample container and meshes with the first rack and the second rack; and the water quality sensor is disposed at the lower end of the second rack.

[0008] Preferably, a bushing is rotatably connected to the float, a spline groove is provided on the inner wall of the bushing, a spline is provided on the outer wall of the sampling tube and vertically slidably connected to the spline groove, and a drive component for driving the bushing to rotate is connected to the bushing.

[0009] Preferably, the drive assembly includes: a drive pulley, which is coaxially arranged with a first spur gear; a driven pulley, which is rotatably connected to the float; a synchronous belt, which drives the drive pulley and the driven pulley; a first bevel gear, which is coaxially arranged with the driven pulley; a second bevel gear, which meshes with the first bevel gear; a second spur gear, which is coaxially arranged with the second bevel gear; and a third spur gear, which is mounted on a bushing and meshes with the second spur gear.

[0010] Preferably, the lower end of the sampling tube is provided with multiple sampling branches that communicate with the interior of the sampling tube.

[0011] Preferably, the upper part of the sampling tube is provided with a stirring rod located below the float.

[0012] Preferably, the air outlet of the air pump is connected to an air outlet pipe that extends into the river channel.

[0013] A method for using a monitoring device for evaluating river hydrological information includes the following steps: S1: Place the entire device in the river where hydrological information monitoring is required. Utilize the buoyancy of the float to make the device float on the river surface, with the lower end of the sampling tube extending into the river water. S2: The air pump draws air from inside the sample container. The air enters the river water through the air outlet pipe, oxygenating the river and improving its self-purification ability. At the same time, a negative pressure is formed inside the sample container, and the water sample from the river enters the sample chamber through the sample outlet under the negative pressure. S3: As the water level in the sample container rises, the float moves the sampling tube upward under the buoyancy of the water, increasing the sampling range. The sampling tube drives the water quality sensor downward through the transmission component. When the water quality sensor passes through the annular cleaning component, the impurities on its surface are cleaned. The drive component drives the sampling tube to rotate, making the sampling tube perform a compound motion of rising and rotating. This causes the spline, sampling branch tube, and stirring rod to rotate. The rotating spline and sampling branch tube stir the water around the sampling point in the river, and the spline and stirring rod stir the water sample in the sample chamber. S4: When the sampling tube rises to the point where the outlet hole is blocked by the clearance hole, the water sample in the river will no longer enter the sample chamber, and the water quality sensor will detect the water sample.

[0014] Compared to existing technologies, this invention utilizes a combination of a float, water quality sensor, sample container, clearance hole, annular cleaning component, sampling tube, float ball, sampling outlet, transmission assembly, and air pump. The entire device is placed within the river where hydrological information monitoring is required. The buoyancy of the float allows the device to float on the river surface. The lower end of the sampling tube extends into the river water. The air pump draws air from inside the sample container, creating negative pressure. Water samples from the river enter the sample container through the sampling outlet under this negative pressure. As the water level rises in the sample container, the float ball, under the buoyancy of the water, moves the sampling tube upwards, increasing the sampling range. The sampling tube, through the transmission assembly, drives the water quality sensor... As the sensor descends, impurities on its surface are cleaned as it passes through the annular cleaning component, improving the accuracy of hydrological monitoring data. When the sampling tube rises to the point where the outlet hole is blocked by the clearance hole, water samples from the river no longer enter the sample container. The water quality sensor then detects the water sample. After monitoring is complete, the water sample is discharged, buoyancy disappears, and the float resets under gravity. The water quality sensor rises again and contacts the annular cleaning component, receiving a secondary cleaning. This process avoids the influence of water pressure, suspended solids, and flowing water in the river on the accuracy of the water quality sensor, making the monitored values ​​of the water quality sensor for river hydrological information closer to the actual values ​​and improving the accuracy of hydrological departments' evaluation of river hydrological information.

[0015] Compared with existing technologies, the sample container in this invention has a fixed volume and the sampling depth of the sampling tube is fixed. Therefore, it can realize quantitative and fixed-depth monitoring of river water samples, making the monitoring values ​​of river hydrological information by water quality sensors closer to the actual values, and improving the accuracy of hydrological departments' evaluation of river hydrological information. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic cross-sectional view of the sampling tube of the present invention; Figure 5 This is a top view of the bushing structure of the present invention; Figure 6 This is a schematic diagram of the sampling tube and spline connection structure of the present invention.

[0017] In the diagram: 1. Float; 2. Sample container; 3. Isolation plate; 4. Isolation chamber; 5. Sample chamber; 6. Annular cleaning component; 7. Sampling tube; 8. Float; 9. Sampling port; 10. Air pump; 11. First rack; 12. Second rack; 13. First spur gear; 14. Water quality sensor; 15. Bushing; 16. Spline groove; 17. Clearance hole; 18. Spline; 19. Sampling branch pipe; 20. Stirring rod; 21. Driving pulley; 22. Driven pulley; 23. Synchronous belt; 24. First bevel gear; 25. Second bevel gear; 26. Second spur gear; 27. Third spur gear; 28. Air outlet pipe. Detailed Implementation

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] like Figures 1 to 6 As shown, a monitoring device for evaluating river hydrological information and its usage method are disclosed, wherein the monitoring device for evaluating river hydrological information in this invention includes: floating body 1; Water quality sensor 14 is used to monitor river hydrological information. Water quality sensor 14 is a pH sensor, conductivity sensor, dissolved oxygen sensor or turbidity sensor. Sample container 2 is set on float 1. Inside sample container 2, there is a clearance hole 17 and an annular cleaning component 6. Water quality sensor 14 and annular cleaning component 6 correspond to each other in the vertical direction. The annular cleaning component is a silicone ring or a sponge ring. The sampling tube 7 is vertically slidably connected to the float 1. The clearance hole 17 corresponds to the sampling tube 7 in the vertical direction. The upper part of the sampling tube 7 is provided with a float 8 located inside the sample container 2. The sampling tube 7 is provided with a sample outlet hole 9 located above the float 8. The transmission assembly is connected to the water quality sensor 14 and the sampling tube 7 respectively. The water quality sensor 14 and the sampling tube 7 move in opposite directions. The air pump 10 is connected to the sample container 2 via its air inlet.

[0020] In practical use, the entire device is placed in the river where hydrological information monitoring is required. Utilizing the buoyancy of the float 1, the device floats on the river surface. The lower end of the sampling tube 7 extends into the river water. The air pump 10 extracts air from the sample container 2, creating a negative pressure inside. Under this negative pressure, the water sample enters the sample container 2 through the sampling port 9. As the water level in the sample container 2 rises, the float 8, under the buoyancy of the water, moves the sampling tube 7 upwards, increasing the sampling range. The sampling tube 7 is driven by a transmission assembly. As the water quality sensor 14 descends, impurities on its surface are cleaned as it passes through the annular cleaning component 6, improving the accuracy of hydrological monitoring data. When the sampling tube 7 rises to the point where the sampling outlet 9 is blocked by the clearance hole 17, water samples from the river no longer enter the sample container 2. The water quality sensor 14 then detects the water sample. After the monitoring is completed, the water sample is discharged, buoyancy disappears, and the interior of the sample container 2 is connected to the atmosphere, the negative pressure disappears, the float 8 resets under gravity, and the water quality sensor 14 rises and contacts the annular cleaning component 6 again, achieving secondary cleaning.

[0021] In order to improve the detection accuracy of the water quality sensor 14, preferably, a partition plate 3 is horizontally arranged inside the sample container 2. The partition plate 3 divides the sample container 2 into a partition chamber 4 and a sample chamber 5. The partition chamber 4 is located above the partition plate 3, and the sample chamber 5 is located below the partition plate 3. A through hole is opened on the partition plate 3, and an annular cleaning component 6 is arranged at the through hole.

[0022] Specifically, when the water quality sensor 14 is not in use, it is cleaned by the annular cleaning component 6 and then hidden in the isolation chamber 4 to prevent dust from the outside air from falling on the surface of the water quality sensor 14 and improve the accuracy of hydrological monitoring data.

[0023] To achieve the purpose of reverse movement between the water quality sensor 14 and the sampling tube 7, preferably, the transmission assembly includes: a first rack 11, which is rotatably connected to the upper end of the sampling tube 7 and is vertically slidably connected to the sample container 2; a second rack 12, which is vertically slidably connected to the sample container 2; a first spur gear 13, which is rotatably connected to the upper end of the sample container 2 and meshes with the first rack 11 and the second rack 12, with the water quality sensor 14 disposed at the lower end of the second rack 12.

[0024] Specifically, as the sampling tube 7 rises with the float 8, it drives the first rack 11 to rise. The first rack 11 then drives the second rack 12 to fall via the first spur gear 13, allowing the water quality sensor 14 to pass through the annular cleaning component 6 and enter the sample chamber 5 to detect the water sample in the sample chamber 5. After the detection is completed, as the sampling tube 7 falls with the float 8, it drives the first rack 11 to fall. The first rack 11 then drives the second rack 12 to rise via the first spur gear 13, allowing the water quality sensor 14 to pass through the annular cleaning component 6 in the opposite direction and enter the isolation chamber 4. The isolation chamber 4 can prevent dust in the outside air from contaminating the water quality sensor 14, thereby improving the accuracy of hydrological monitoring data.

[0025] In order to improve the accuracy of hydrological monitoring data, preferably, a bushing 15 is rotatably connected to the float 1, a spline groove 16 is provided on the inner wall of the bushing 15, a spline 18 is provided on the outer wall of the sampling tube 7 and is vertically slidably connected to the spline groove 16, and a drive assembly for driving the bushing 15 to rotate is connected to the bushing 15.

[0026] The drive assembly includes: a drive pulley 21, which is coaxially arranged with the first spur gear 13; a driven pulley 22, which is rotatably connected to the float 1; a synchronous belt 23, which drives the drive pulley 21 and drives the driven pulley 22; a first bevel gear 24, which is coaxially arranged with the driven pulley 22; a second bevel gear 25, which meshes with the first bevel gear 24; a second spur gear 26, which is coaxially arranged with the second bevel gear 25; and a third spur gear 27, which is mounted on the bushing 15 and meshes with the second spur gear 26.

[0027] Specifically, as the sampling tube 7 rises with the float 8, the first rack 11 drives the driving pulley 21 to rotate. The driving pulley 21 drives the driven pulley 22 to rotate via the synchronous belt 23. The driven pulley 22 drives the first bevel gear 24 to rotate. The first bevel gear 24 drives the second spur gear 26 to rotate via the second bevel gear 25. The second spur gear 26 drives the bushing 15 to rotate via the third spur gear 27. The spline groove 16 on the inner side of the bushing 15 drives the sampling tube 7 to rotate via the spline 18, causing the sampling tube 7 to rotate and rise. During the rising process, the spline 18 extending into the river water stirs the water sample around the sampling point, and the spline 18 extending into the sample chamber 5 stirs the collected water sample, making the water sample evenly mixed and improving the accuracy of hydrological monitoring data.

[0028] In order to improve the accuracy of hydrological monitoring data, preferably, the lower end of the sampling tube 7 is provided with multiple sampling branch tubes 19 that are connected to the interior of the sampling tube 7.

[0029] Specifically, during the sampling process, the sampling branch pipe 19 stirs the nearby water body, and the sampling branch pipe 19 faces all directions to expand the sampling range, which helps to improve the accuracy of hydrological monitoring data.

[0030] In order to improve the accuracy of hydrological monitoring data, preferably, the upper part of the sampling tube 7 is provided with a stirring rod 20 located below the float 8.

[0031] Specifically, the stirring rod 20 rotates and rises with the sampling tube 7 to further stir the collected water sample, improve the mixing effect of the water sample, and improve the accuracy of hydrological monitoring data.

[0032] In order to enhance the self-purification capacity of the water body, preferably, the air outlet of the air pump 10 is connected to an air outlet pipe 28 for extending into the river channel.

[0033] Specifically, the air pump 10 draws air from the sample container 2 and enters the river water through the air outlet pipe 28, which oxygenates the river water and helps enhance the water's self-purification ability.

[0034] A method for using a monitoring device for evaluating river hydrological information includes the following steps: S1: Place the entire device in the river where hydrological information monitoring is required. Utilize the buoyancy of the float 1 to make the device float on the river surface. The lower end of the sampling tube 7 extends into the river water. S2: The air pump 10 draws air from the inside of the sample container 2. The air enters the river water through the air outlet pipe 28, oxygenates the river, and improves the self-purification ability of the river water. At the same time, a negative pressure is formed inside the sample container 2. Under the action of negative pressure, the water sample in the river enters the sample chamber 5 through the sample outlet hole 9. S3: As the water level in sample container 2 rises, the float 8 moves the sampling tube 7 upward under the buoyancy of the water, increasing the sampling range. The sampling tube 7 drives the water quality sensor 14 to descend through the transmission component. When the water quality sensor 14 passes through the annular cleaning component 6, the impurities on its surface are cleaned. The drive component drives the sampling tube 7 to rotate, causing the sampling tube 7 to perform a combined upward and rotational motion, which drives the spline 18, the sampling branch tube 19 and the stirring rod 20 to rotate. The rotating spline 18 and the sampling branch tube 19 stir the water around the sampling point in the river channel, and the spline 18 and the stirring rod 20 stir the water sample in the sample chamber 5. S4: When the sampling tube 7 rises to the point where the sampling hole 9 is blocked by the clearance hole 17, the water sample in the river will no longer enter the sample chamber 5, and the water quality sensor 14 will detect the water sample.

[0035] Compared to existing technologies, this invention utilizes the coordinated arrangement of a float 1, a water quality sensor 14, a sample container 2, an obstacle hole 17, an annular cleaning component 6, a sampling tube 7, a float ball 8, a sampling outlet 9, a transmission assembly, and an air pump 10. The entire device is placed in the river where hydrological information monitoring is required. The buoyancy of the float 1 allows the device to float on the river surface. The lower end of the sampling tube 7 extends into the river water. The air pump 10 extracts air from the sample container 2, creating a negative pressure inside. Water samples from the river enter the sample container 2 through the sampling outlet 9 under this negative pressure. As the water level in the sample container 2 rises, the float ball 8, under the buoyancy of the water, moves the sampling tube 7 upwards, increasing the sampling range. The sampling tube 7 is then driven by the transmission assembly... As the water quality sensor 14 descends, impurities on its surface are cleaned as it passes through the annular cleaning component 6, improving the accuracy of hydrological monitoring data. When the sampling tube 7 rises to the point where the sampling outlet 9 is blocked by the clearance hole 17, water samples from the river no longer enter the sample container 2. The water quality sensor 14 then detects the water sample. After monitoring, the water sample is discharged, buoyancy disappears, and the float 8 resets under gravity. The water quality sensor 14 rises again and contacts the annular cleaning component 6, receiving secondary cleaning. This avoids the impact of water pressure, suspended solids, and flowing water in the river on the accuracy of the water quality sensor 14, making the monitored values ​​of the water quality sensor for river hydrological information closer to the actual values ​​and improving the accuracy of the hydrological department's evaluation of river hydrological information.

[0036] Compared with the prior art, the sample container 2 in this invention has a fixed volume and the sampling depth of the sampling tube 7 is fixed. Therefore, it can realize quantitative and fixed-depth monitoring of river water samples, so that the monitoring value of the water quality sensor on the river hydrological information is closer to the actual value, and improves the accuracy of the hydrological department's evaluation of the river hydrological information.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A monitoring device for evaluating river hydrological information, characterized in that, include: floating body; A water quality sensor, used to monitor river hydrological information; A sample container is mounted on a float. The interior of the sample container is provided with clearance holes and annular cleaning components. The water quality sensor and the annular cleaning components correspond to each other in the vertical direction. The sampling tube is vertically slidably connected to the float. The clearance hole corresponds to the sampling tube in the vertical direction. A float ball located inside the sample container is provided at the upper part of the sampling tube. A sample outlet hole located above the float ball is provided on the sampling tube. A transmission assembly is connected to a water quality sensor and a sampling tube, respectively, and the water quality sensor and the sampling tube move in opposite directions. An air pump, the air inlet of which is connected to the sample container.

2. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: The sample container has a horizontally arranged partition plate inside, which divides the sample container into a partition chamber and a sample chamber. The partition chamber is located above the partition plate, and the sample chamber is located below the partition plate. The partition plate has a through hole, and the annular cleaning component is located at the through hole.

3. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: The transmission assembly includes: a first rack, which is rotatably connected to the upper end of the sampling tube and is vertically slidably connected to the sample container; a second rack, which is vertically slidably connected to the sample container; a first spur gear, which is rotatably connected to the upper end of the sample container and meshes with the first rack and the second rack; and the water quality sensor is disposed at the lower end of the second rack.

4. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: A bushing is rotatably connected to the float, and a spline groove is provided on the inner wall of the bushing. A spline is provided on the outer wall of the sampling tube and is vertically slidably connected to the spline groove. A drive assembly for rotating the bushing is connected to the bushing.

5. The monitoring equipment for evaluating river hydrological information according to claim 3 or 4, characterized in that: The drive assembly includes: a drive pulley, which is coaxially arranged with a first spur gear; a driven pulley, which is rotatably connected to the float; a synchronous belt, which drives the drive pulley and the driven pulley; a first bevel gear, which is coaxially arranged with the driven pulley; a second bevel gear, which meshes with the first bevel gear; a second spur gear, which is coaxially arranged with the second bevel gear; and a third spur gear, which is mounted on a bushing and meshes with the second spur gear.

6. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: The lower end of the sampling tube is provided with multiple sampling branches that communicate with the interior of the sampling tube.

7. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: The upper part of the sampling tube is equipped with a stirring rod located below the float.

8. The monitoring equipment for evaluating river hydrological information according to claim 1, characterized in that: The air pump has an outlet end connected to an air outlet pipe that extends into the river channel.

9. A method of using a monitoring device for evaluating river hydrological information, implemented using the monitoring device for evaluating river hydrological information as described in claim 8, characterized in that... Includes the following steps: S1: Place the entire device in the river where hydrological information monitoring is required. Utilize the buoyancy of the float to make the device float on the river surface, with the lower end of the sampling tube extending into the river water. S2: The air pump draws air from inside the sample container. The air enters the river water through the air outlet pipe, and at the same time, a negative pressure is formed inside the sample container. The water sample in the river enters the sample chamber through the sample outlet under the action of the negative pressure. S3: As the water level in the sample container rises, the float moves the sampling tube upward under the buoyancy of the water. The sampling tube drives the water quality sensor downward through the transmission component. When the water quality sensor passes through the annular cleaning component, the impurities on its surface are cleaned. The drive component drives the sampling tube to rotate, making the sampling tube perform a compound motion of rising and rotating. This causes the spline, sampling branch tube and stirring rod to rotate. The rotating spline and sampling branch tube stir the water around the sampling point in the river, and the spline and stirring rod stir the water sample in the sample chamber. S4: When the sampling tube rises to the point where the outlet hole is blocked by the clearance hole, the water sample in the river will no longer enter the sample chamber, and the water quality sensor will detect the water sample.

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