A device for measuring changes in riverbed scour and sedimentation

Abstract

This utility model provides a riverbed scour and sedimentation change measurement device, including an L-shaped mounting frame, a column, a settling pipe, and a measuring plate. The L-shaped mounting frame has an inner cavity at its top, and the measuring plate is slidably mounted inside one end of this cavity. The structure is simple and easy to install. The L-shaped mounting frame, supporting plate, and fixing holes allow for easy overall fixation of the device; further, the connection of fixing screws and through holes further secures the L-shaped mounting frame to the column, improving the column's stability. The column limits the settling pipe, effectively preventing water erosion that could lead to poor contact between the settling pipe and the sediment layer, thus ensuring accurate measurement of sediment layer height changes. When the settling pipe sinks, the measuring plate is moved by pulling a rope, allowing for easy and intuitive reading of sediment layer height changes via scale lines. The measurement results are accurate and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of riverbed scour and sedimentation change measurement technology, specifically a riverbed scour and sedimentation change measurement device. Background Technology

[0002] Riverbed erosion and deposition refer to the dynamic process of erosion and sedimentation in a river caused by changes in water and sediment conditions. When the amount of sediment carried by the upstream current is less than the sediment-carrying capacity of the water flow, erosion will occur in the riverbed; conversely, sedimentation will occur. Accurate measurement of changes in riverbed erosion and deposition facilitates subsequent dredging work.

[0003] In the prior art, such as the Chinese utility model patent with publication number CN210603294U, an intelligent detection device for scour and sediment changes in a multi-silt channel cross-section is proposed. This device measures the height of the sediment layer by moving a water level gauge on the riverbed using a motor and pulley system installed on the riverbank to pull a cable. However, such devices have significant drawbacks: First, the suspended measuring unit (such as the water level gauge) is constantly exposed to the water flow and is prone to swaying or shifting under the impact of the continuously flowing water, leading to inaccurate measurement data and severely affecting the reliability of scour and sediment change monitoring. Second, the device relies on a complex structure consisting of a motor, pulleys, and solar power supply, resulting in high costs and significant inconvenience in installation and maintenance in outdoor river environments.

[0004] In view of the shortcomings of the existing technology, there is an urgent need for a riverbed scouring and deposition measurement device that is simple in structure, easy to install, resistant to water flow interference, and provides reliable measurement results. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a riverbed scour and sedimentation change measurement device, solving the problems mentioned in the background art, such as susceptibility to water flow interference, complex structure, and inconvenient installation. This device, through the combination of an L-shaped mounting frame, support plate, and fixing holes, facilitates quick and stable installation. Simultaneously, the column helps to limit the position of the sedimentation tube, effectively preventing water flow erosion and ensuring good contact between the sedimentation tube and the sediment layer, thereby achieving accurate measurement of sediment layer height changes.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a riverbed scour and sedimentation change measuring device, comprising an L-shaped mounting frame, a column, a settling pipe, and a measuring plate. The top of the L-shaped mounting frame has an inner cavity. The measuring plate is slidably mounted inside one end of the inner cavity. The top wall of the outer end of the measuring plate has graduation lines. A limiting screw is movably mounted on the inner side of the top of the measuring plate through a perforation. The limiting screw is screwed into the inner cavity. The bottom of the L-shaped mounting frame has a sliding groove. The column is slidably mounted inside one end of the L-shaped mounting frame. The settling pipe is slidably disposed on the outer side of the column. A pull rope is fixedly connected between one end of the measuring plate and the top end of the settling pipe.

[0007] Furthermore, the other end of the L-shaped mounting bracket has symmetrically provided fixing holes, and a support plate is fixedly supported between the two ends of the L-shaped mounting bracket. The top of the support plate has symmetrically provided fixing holes.

[0008] Furthermore, a groove is provided inside the inner top wall of the inner cavity, and the top end of the measuring plate is slidably installed inside the groove, with the perforation being opened inside the top end of the measuring plate.

[0009] Furthermore, the limiting screw is movably installed inside the perforation, and a knob and a baffle are fixedly provided at both ends of the limiting screw, respectively. The knob is located on the outside of the inner cavity, and the baffle is located on the outside of the inner cavity, respectively abutting against the two sides of the top of the measuring plate.

[0010] Furthermore, a fixed pulley is installed at the bottom inner side of the inner cavity corresponding to the position of the pull rope. The pull rope passes around the fixed pulley 15, and the bottom end of the pull rope is movably disposed inside the inner cavity and the sliding groove.

[0011] Furthermore, the bottom end of the settling pipe is disc-shaped, the top end of the settling pipe is slidably disposed inside the sliding groove, and an installation groove is provided inside the settling pipe on one side corresponding to the column.

[0012] Furthermore, the bottom end of the column is provided with a pointed cone, the column is a smooth stainless steel rod, the top end of the column has through holes equidistantly opened inside, and the lower end of the column is fixedly installed inside the riverbed body by the pointed cone.

[0013] Furthermore, a fixing screw is horizontally screwed into the top of the L-shaped mounting bracket, one end of which is inserted into the through hole, and a handwheel is fixedly installed at the outer end of the fixing screw.

[0014] The riverbed scouring and sedimentation measurement device provided by this utility model has the following beneficial effects:

[0015] 1. The L-shaped mounting bracket, support plate, and fixing holes enable rapid and stable installation of the device on the riverbank, significantly reducing construction difficulty and complexity.

[0016] 2. By utilizing the combination of the fixing screw and the through hole, the L-shaped mounting bracket and the column can be further fixed, effectively improving the stability of the column under the action of water flow.

[0017] 3. The support column can limit the movement of the settling pipe, effectively preventing water erosion that could lead to poor contact between the settling pipe and the silt layer, thus ensuring the accuracy of the silt layer height measurement results. When the settling pipe sinks, the measuring plate is moved by pulling a rope, and the changing values ​​can be read intuitively with the help of the surface scale lines, making the measurement process clear and reliable.

[0018] 4. The measuring plate is flexibly fixed by the limiting screw, knob and baffle structure, which facilitates multiple measurements at the same position at different times. It has strong applicability and is conducive to long-term monitoring of the riverbed scouring and deposition process. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a riverbed scouring and sedimentation measurement device according to the present invention;

[0020] Figure 2 This is a cross-sectional view of a riverbed scouring and sedimentation measurement device according to the present invention;

[0021] Figure 3 This is a front cross-sectional view of a riverbed scouring and sedimentation measurement device according to the present invention;

[0022] Figure 4 This utility model relates to a device for measuring changes in riverbed scour and sedimentation. Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a cross-sectional view of the mounting frame of the riverbed scouring and sedimentation measurement device of this utility model;

[0024] Figure 6 This is a structural diagram of a limiting screw for a riverbed scouring and sedimentation measurement device according to the present invention;

[0025] Figure 7 This is a structural diagram of the measuring plate and the pull rope of a riverbed scour and sedimentation measurement device according to this utility model;

[0026] Figure 8 This is a structural diagram of the settling tube and column of a riverbed scour and sedimentation change measuring device according to this utility model;

[0027] In the diagram: 1. L-shaped mounting bracket; 2. Support plate; 3. Fixing hole; 4. Column; 5. Settlement pipe; 6. Measuring plate; 7. Fixing screw; 8. Limiting screw; 9. Slide groove; 10. Sliding groove; 11. Pull rope; 12. Mounting groove; 13. Riverbed body; 14. Through hole; 15. Fixed pulley; 16. Knob; 17. Baffle; 18. Scale line; 19. Perforation. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Please see Figures 1 to 8 This utility model provides a technical solution: a riverbed scouring and sedimentation change measuring device, including an L-shaped mounting frame 1, a column 4, a sedimentation tube 5, and a measuring plate 6. The top of the L-shaped mounting frame 1 has an inner cavity. The measuring plate 6 is slidably mounted inside one end of the inner cavity. The top wall of the outer end of the measuring plate 6 has a scale line 18. A limiting screw 8 is movably mounted on the inner side of the top of the measuring plate 6 through a through hole 19. The limiting screw 8 is screwed into the inner cavity. The bottom end of the L-shaped mounting frame 1 has a sliding groove 10. The column 4 is slidably mounted inside one end of the L-shaped mounting frame 1. The sedimentation tube 5 is slidably disposed on the outside of the column 4. A pull rope 11 is fixedly connected between one end of the measuring plate 6 and the top end of the sedimentation tube 5. By placing the sedimentation tube 5 on the outside of the column 4, it is convenient to limit the sedimentation tube 5 through the column 4, which can effectively prevent the sedimentation tube 5 from shifting due to water flow impact, thereby ensuring the accuracy of sediment layer height detection and improving the practicality of the device.

[0030] In this embodiment, the other end of the L-shaped mounting frame 1 is symmetrically provided with fixing holes 3. A support plate 2 is fixedly supported between the two ends of the L-shaped mounting frame 1. The top of the support plate 2 is symmetrically provided with fixing holes 3. The L-shaped mounting frame 1 and the support plate 2 can be easily fixed and installed on the shore through the fixing holes 3, which is convenient for fixed installation and easy to operate.

[0031] In this embodiment, a groove 9 is provided inside the inner top wall of the inner cavity. The top end of the measuring plate 6 is slidably installed inside the groove 9. The through hole 19 is opened inside the top end of the measuring plate 6. The limiting screw 8 is movably installed inside the through hole 19. A knob 16 and a baffle 17 are respectively fixed at both ends of the limiting screw 8. The knob 16 is located outside the inner cavity, and the baffle 17 is located inside the inner cavity, respectively abutting against the two sides of the top end of the measuring plate 6. The limiting screw 8 can slide in the through hole 19, allowing the measuring plate 6 to slide left and right. It can also be fixed by the screw connection between the right end of the limiting screw 8 and the L-shaped mounting bracket 1, which facilitates the subsequent measurement of the height of the silt layer.

[0032] In this embodiment, a fixed pulley 15 is installed at the bottom inner side of the inner cavity corresponding to the position of the pull rope 11. The pull rope 11 passes around the fixed pulley 15, and the bottom end of the pull rope 11 is movably disposed inside the inner cavity and the sliding groove 10. The fixed pulley 15 facilitates the support and guidance of the pull rope 11, and facilitates the subsequent pulling of the pull rope 11 and the measuring plate 6 through the settling pipe 5, thereby measuring the height change of the silt layer.

[0033] In this embodiment, the bottom end of the settling pipe 5 is disc-shaped, and the top end of the settling pipe 5 is slidably disposed inside the sliding groove 10. An installation groove 12 is provided inside the settling pipe 5 on one side corresponding to the column 4, which can increase the contact area between the bottom end of the settling pipe 5 and the silt layer, preventing the settling pipe 5 from sinking into the silt layer. An immersion water level gauge can be installed through the provided installation groove 12. By cooperating with the immersion water level gauge and the settling pipe 5, the height of the silt layer can be detected, which can improve the accuracy of the detection results.

[0034] In this embodiment, the bottom end of the column 4 is provided with a pointed cone. The column 4 is a smooth stainless steel rod. The top end of the column 4 has through holes 14 evenly spaced inside. The lower end of the column 4 is fixedly installed inside the riverbed body 13 by the pointed cone. The top end of the L-shaped mounting bracket 1 is horizontally screwed with a fixing screw 7. One end of the fixing screw 7 is inserted into the through hole 14. The outer end of the fixing screw 7 is fixedly provided with a handwheel. By inserting the column 4 into the riverbed body 13, the column 4 can be limited, which facilitates the limitation of the settlement pipe 5 through the column 4. Through the coordinated cooperation of the fixing screw 7, the through hole 14, and the column 4, the stability of the column 4 can be improved, which facilitates the subsequent detection of the silt layer height.

[0035] When using this riverbed scour and sedimentation change measuring device, follow these steps:

[0036] Site selection and fixed installation frame: Select a location on the riverbed to be eroded and silted up, drill holes at the corresponding locations on the riverbank, so that the L-shaped installation frame 1 and the support plate 2 are in close contact with the river, and align the drilled holes with the fixing holes 3. Use expansion bolts to firmly fix the L-shaped installation frame 1 and the support plate 2 to the bank.

[0037] Installation and Leveling of the Column: Insert the column 4 into the L-shaped mounting bracket 1 and the sliding groove 10, and drive the column 4 into the riverbed rock strata using the pointed end at its bottom. Since the distance between the through holes 14 is the same, the insertion depth of the column 4 can be calculated and adjusted according to the height of the through holes 14 visible above the L-shaped mounting bracket 1, so that a certain through hole 14 is aligned with the fixing screw 7. Turn the handwheel to screw the fixing screw 7 into the through hole 14, thereby achieving a tight fixation between the L-shaped mounting bracket 1 and the column 4 and enhancing the stability of the column 4.

[0038] Initial setup and measurement: The front and rear outer walls of the measuring plate 6 are provided with rubber layers to increase the friction with the inner cavity wall; rotate the knob 16 to fully screw the limiting screw 8 into the inner cavity to release the restriction on the measuring plate; the settling tube 5 slides down the column 4 under its own weight until its bottom disc contacts the surface of the silt layer. This disc structure can increase the contact area and prevent the settling tube 5 from sinking excessively; when the settling tube 5 moves down, the measuring plate 6 is pulled into the inner cavity by the pull rope 11, the current reading is read by the scale line 18, and the initial height is recorded.

[0039] Reset and repeat measurement: After completing the first reading, pull the measuring plate 6 in the opposite direction and lift the settling pipe 5 away from the surface of the silt layer by pulling the rope 11; unscrew the limiting screw 8 and fix it with the screw connection of the L-shaped mounting bracket 1, and lock the position of the measuring plate 6 and the settling pipe 5 with the cooperation of the baffle 17.

[0040] Long-term monitoring and data comparison: After the initial reading is completed, the sedimentation tube is released repeatedly and new readings are recorded after a certain period of time; by comparing the data from multiple measurements, the changes in riverbed scouring and deposition are accurately calculated.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for measuring the scouring and silting of a riverbed of a river course, comprising an L-shaped mounting bracket (1), a stand (4), a sedimentation tube (5) and a measuring plate (6), characterized in that, The L-shaped mounting bracket (1) has an inner cavity at its top end. The measuring plate (6) is slidably mounted inside one end of the inner cavity. The measuring plate (6) has a scale line (18) on its top wall at the outer end. The measuring plate (6) has a limiting screw (8) movably mounted on its inner side through a through hole (19). The limiting screw (8) is screwed into the inner cavity. The L-shaped mounting bracket (1) has a sliding groove (10) at its bottom end. The column (4) is slidably mounted inside one end of the L-shaped mounting bracket (1). The settling pipe (5) is slidably mounted on the outside of the column (4). A pull rope (11) is fixedly connected between one end of the measuring plate (6) and the top end of the settling pipe (5).

2. The device for measuring the scouring and silting changes of a riverbed according to claim 1, characterized in that: The L-shaped mounting bracket (1) has symmetrically opened fixing holes (3) at the other end. A support plate (2) is fixedly supported between the two ends of the L-shaped mounting bracket (1). The top of the support plate (2) has symmetrically opened fixing holes (3).

3. The device for measuring the scouring and silting changes of a riverbed according to claim 1, characterized in that: The inner side top wall of the inner cavity is provided with a groove (9), the top end of the measuring plate (6) is slidably installed inside the groove (9), and the perforation (19) is opened inside the top end of the measuring plate (6).

4. The device for measuring the scouring and silting changes of a riverbed according to claim 3, characterized in that: The limiting screw (8) is movably installed inside the through hole (19). A knob (16) and a baffle (17) are fixedly provided at both ends of the limiting screw (8). The knob (16) is located on the outside of the inner cavity, and the baffle (17) is located on the inside of the inner cavity, respectively abutting against the two sides of the top of the measuring plate (6).

5. The riverbed scouring and deposition measurement device according to claim 1, characterized in that: A fixed pulley (15) is installed at the bottom of the inner side of the cavity corresponding to the position of the pull rope (11). The pull rope (11) passes around the fixed pulley (15), and the bottom end of the pull rope (11) is movably set inside the inner cavity and the sliding groove (10).

6. The device for measuring the scouring and silting changes of a riverbed according to claim 1, characterized in that: The bottom of the settling pipe (5) is disc-shaped, and the top of the settling pipe (5) is slidably disposed inside the sliding groove (10). An installation groove (12) is provided inside the settling pipe (5) on one side corresponding to the column (4).

7. The device for measuring the scouring and silting changes of a riverbed according to claim 1, characterized in that: The bottom end of the column (4) is provided with a pointed cone. The column (4) is a stainless steel rod with a smooth surface. The top end of the column (4) is provided with through holes (14) at equal intervals. The lower end of the column (4) is fixedly installed inside the riverbed body (13) by the pointed cone.

8. The riverbed scouring and deposition change measuring device according to claim 7, characterized in that: A fixing screw (7) is horizontally screwed into the top of the L-shaped mounting bracket (1). One end of the fixing screw (7) is inserted into the through hole (14), and a handwheel is fixedly installed on the outer end of the fixing screw (7).

Images