River section measuring device

Abstract

A river section measuring device, including two fixedly arranged support columns on both sides of the river, the top of the support column is fixedly connected with a first support, the first support is equipped with a support shaft, a plurality of pulleys are assembled on the support shaft, a plurality of steel wire rope rings are assembled on each pair of pulleys, and a support plate is further included, the support plate is fixedly connected with the steel wire rope ring, a winch is connected to the support plate, a cable is wound on the winch, and the lower end of the cable is connected with a measuring element for measuring the river. The utility model is used for solving the problem of poor safety of river section measurement by boat operation.

Description

Technical Field

[0001] This utility model relates to a river cross-section measuring device. Background Technology

[0002] River cross-section measurement is a crucial aspect of hydrological work, requiring the periodic acquisition of data such as water depth and topography from river cross sections. This data provides critical support for flood control scheduling, hydrological and hydraulic calculations, water resource assessment and management, and infrastructure construction across or near rivers. Currently, the commonly used measurement method in the industry is the mobile acoustic Doppler current profiler (ADCP), which requires manual operation or travel by boat to the measurement point to complete data collection. A drawback of this method is the poor safety of boat operations in high-velocity or turbulent waterways during the flood season. Utility Model Content

[0003] The purpose of this invention is to provide a river cross-section measuring device to solve the problem of poor safety during river profile measurement operations by boat.

[0004] To solve the above problems, the technical solution of this utility model is as follows: A river cross-section measuring device includes two support columns fixedly installed on both banks of a river. A first bracket is fixedly connected to the top of the support columns. A support shaft is mounted on the first bracket. Multiple pulleys are mounted on the support shaft. Multiple wire rope loops are respectively mounted on each pair of pulleys. The device also includes a support plate, which is fixedly connected to the wire rope loops. A winch is connected to the support plate, and a cable is wound on the winch. The lower end of the cable is connected to a measuring element used for measuring the river.

[0005] Furthermore, it also includes a first anchor rod and a second anchor rod, with the lower end of the support column hinged to the first anchor rod, and a lifting lug fixedly connected to the support column, with a hand-operated hoist connecting the lifting lug to the first anchor rod.

[0006] Furthermore, a foot pedal is fixedly connected to the upper end of the first anchor rod.

[0007] Furthermore, a geared motor is installed on one of the first supports, and the geared motor is connected to the support shaft through a sprocket and chain transmission mechanism.

[0008] Furthermore, a second bracket is installed on the support plate. The second bracket is equipped with a rotating shaft and an angle sensor. A guide cable shaft is supported on one side of the winch. Both ends of the guide cable shaft are fixedly connected to the rotating shaft through connecting plates. The cable wound on the winch rests against the guide cable shaft.

[0009] Furthermore, the measuring element includes an ADCP, on which a counterweight is mounted.

[0010] Furthermore, it also includes a controller, an ADCP and an angle sensor connected to the controller input, and a winch connected to the controller output.

[0011] The beneficial effects of this utility model are as follows: 1. No need for manual crossing of the river to lay steel wire ropes, effectively reducing the operational risks in wide river channels or rapid current scenarios; the hand-operated hoist drives the support column to tilt to achieve steel wire rope tensioning, avoiding the laborious operation of traditional manual pulling and tensioning, while reducing the problem of measurement component offset caused by steel wire rope slack, improving the efficiency and stability of device erection.

[0012] 2. On the one hand, the mobile acoustic Doppler current profiler with counterweight can reduce water flow interference and ensure the accuracy of flow velocity and water depth data acquisition, eliminating the need for manual post-correction of oblique depth; on the other hand, the angle sensor monitors the cable tilt status in real time, which can help verify or correct the measurement data, further reducing the impact of water flow on the measurement results and ensuring the reliability of the cross-sectional data. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the support column of this utility model; Figure 3 This is a front view structural diagram of the support column of this utility model; Figure 4 This is a three-dimensional structural diagram of the winch of this utility model; Figure 5 This is a schematic diagram of the main structure of the winch of this utility model; Figure 6 This is a cross-sectional structural diagram of the present invention during implementation; Figure 7 This is a schematic diagram showing the connection relationship between the various electrical components of this utility model.

[0014] In the diagram: 1. Support plate; 2. Winch; 3. Cable; 4. ADCP; 5. Counterweight; 6. Support column; 7. Foot pedal; 8. First anchor bolt; 9. Second anchor bolt; 10. Hand chain hoist; 11. Pulley; 12. Wire rope ring; 13. Support shaft; 14. Sprocket and chain drive mechanism; 15. Gear motor; 16. First bracket; 17. Angle sensor; 18. Rotating shaft; 19. Connecting plate; 20. Cable guide shaft. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 7 As shown, a river cross-section measuring device includes two support columns 6 fixedly installed on both banks of the river. A first bracket 16 is fixedly connected to the top of the support column 6. A support shaft 13 is mounted on the first bracket 16. Multiple pulleys 11 are mounted on the support shaft 13. Multiple wire rope loops 12 are respectively mounted on each pair of pulleys 11. The device also includes a support plate 1, which is fixedly connected to the wire rope loops 12. A winch 2 is connected to the support plate 1. A cable 3 is wound on the winch 2. The lower end of the cable 3 is connected to a measuring element used for measuring the river.

[0017] Support columns 6 are fixed on both banks of the river, providing stable support for the entire device; the first bracket 16 and the support shaft 13 form the transmission base, and pulleys 11 are mounted on the support shaft 13 to form the moving track of the wire rope loop 12; the wire rope loop 12 is sleeved on the corresponding pulleys 11 on both banks, and the support plate 1 is fixedly connected to the wire rope loop 12. When the support shaft 13 rotates (which can be driven by the subsequent reduction motor 15), the pulleys 11 drive the wire rope loop 12 to move along the width of the river, and then synchronously drive the support plate 1 and the winch 2 above to move laterally; the winch 2 controls the measuring element connected to the lower end to move up and down in the vertical direction by winding / releasing the cable 3, realizing the composite motion of "lateral movement + vertical lifting" to complete the river cross-section measurement.

[0018] Furthermore, it also includes a first anchor rod 8 and a second anchor rod 9. The lower end of the support column is hinged to the first anchor rod 8, and a lifting lug is fixedly connected to the support column. A hand-operated hoist 10 is connected between the lifting lug and the first anchor rod 8. The first anchor rod 8 and the second anchor rod 9 are used to enhance the fixation effect of the support column 6 on the riverbank. The lower end of the support column 6 is hinged to the first anchor rod 8 to form a rotatable fulcrum. When it is necessary to tension the wire rope loop 12, the distance between the lifting lug and the first anchor rod 8 is shortened by operating the hand-operated hoist 10 on the support column 6. This generates a lateral pulling force that causes the support column 6 to tilt outward around the hinge point. When the support column 6 tilts, the top pulley 11 moves outward simultaneously, applying lateral tension to the wire rope loop 12, thereby adjusting the wire rope loop 12 from a slack state to a taut state, ensuring the stability of the subsequent lateral movement of the measuring components.

[0019] Furthermore, a foot pedal plate 7 is fixedly connected to the upper end of the first anchor rod 8. When installing the first anchor rod 8, the operator can step on the foot pedal plate 7 and apply downward pressure with the help of body weight, making it easier to insert the anchor rod into the riverbank; when disassembling the anchor rod, stepping on the foot pedal plate 7 can provide a reaction force fulcrum, making it convenient for the operator to pull the anchor rod upward, reducing the manpower consumption in the anchor rod disassembly and assembly process and improving disassembly and assembly efficiency.

[0020] Furthermore, a geared motor 15 is installed on one of the first supports 16. The geared motor 15 is connected to the support shaft 13 via a sprocket and chain transmission mechanism 14. The geared motor 15 serves as a power source, and its output end is connected to the support shaft 13 via the sprocket and chain transmission mechanism 14. After the geared motor 15 is started, the power is transmitted to the support shaft 13 via the sprocket and chain, causing the support shaft 13 to rotate. The support shaft 13 then drives the pulley 11 on it to rotate. When the pulley 11 rotates, it drives the wire rope loop 12 to move along the width of the river channel, thereby realizing the automated lateral movement of the support plate 1 and the measuring components without the need for manual pulling of the wire rope loop 12.

[0021] Furthermore, a second bracket is installed on the support plate 1. The second bracket is equipped with a rotating shaft 18 and an angle sensor 17. A guide cable shaft 20 is supported on one side of the winch 2. Both ends of the guide cable shaft 20 are fixedly connected to the rotating shaft 18 via connecting plates 19. The cable 3 wound on the winch 2 rests against the guide cable shaft 20. When the water flow pushes the cable 3 to tilt, the cable 3 drives the guide cable shaft 20 to rotate. The guide cable shaft 20 drives the rotating shaft 18 to rotate synchronously via the connecting plates. The angle sensor 17 detects the rotation angle of the rotating shaft 18 in real time. This angle is the tilt angle of the cable 3, providing a basis for subsequent calibration measurement data and preventing the tilt of the cable 3 from affecting measurement accuracy.

[0022] The correction method is as follows: When ADCP4 is tilted at an angle θ with the water flow, the velocity component in the direction of the water flow needs to be converted through this angle. The measured velocity v_true = v_measured / cosθ (v_true is the actual water flow velocity).

[0023] Furthermore, the measuring element includes an ADCP4 (mobile acoustic Doppler current profiler), on which a counterweight 5 is mounted. On one hand, the counterweight 5 counteracts the impact of the water flow on the ADCP4, reducing its swaying or tilting in the water, ensuring stable measurement direction, and improving data acquisition accuracy. On the other hand, the counterweight 5 assists the ADCP4 in quickly descending to the target measurement depth, shortening the time for the winch 2 to lower the cable 3, and improving the measurement efficiency of a single measurement point.

[0024] Furthermore, the system includes a controller. The ADCP4 and angle sensor 17 are connected to the controller input, while the winch 2 and geared motor are connected to the controller output. The controller communicates with a computer. As the core of data processing and command control, the controller receives and processes the raw data. The flow rate and water depth data collected by the ADCP4, as well as the cable 3 tilt angle data collected by the angle sensor 17, all transmitted in real time to the controller input. Simultaneously, based on a preset program or the results of data analysis, the controller outputs control commands to the winch 2, adjusting its start / stop, forward / reverse rotation, and speed to achieve precise lowering or retrieval of the cable 3. This controls the measurement position of the ADCP4, forming an automated closed loop of "data acquisition-analysis-execution control." The ADCP4 then transmits the data to the computer for display and storage.

[0025] The working process of this utility model is as follows: I. Stage of fixing support column 6 and anchor bolt 1. Anchor bolt installation: At the marked points on both banks, the operator steps on the foot plate 7 at the upper end of the first anchor bolt 8 and applies downward pressure with the weight of his body to make the first anchor bolt 8 vertically inserted into the riverbank; similarly, the second anchor bolt 9 is fixed (it is triangularly distributed with the first anchor bolt 8 to enhance the anti-tipping ability of the support column 6).

[0026] 2. Assembly of support column 6: The lower end of support column 6 is connected to the first anchor rod 8 through a hinge shaft; a hand chain hoist 10 is hooked on the lifting lug in the middle of support column 6, and the other end of the hand chain hoist 10 is fixed to the retaining ring of the first anchor rod 8, forming a tensioning linkage structure of support column 6.

[0027] II. Installation and Tensioning Stage of Wire Rope Loop 12 1. Erection of wire rope loop 12: Fit one end of wire rope loop 12 onto the pulley 11 of the first bracket 16 at the top of the left bank support column 6. Use a drone and rope to pull the other end of wire rope loop 12 to the opposite bank of the river. Then fit wire rope loop 12 onto the pulley 11 of the first bracket 16 of the right bank support column 6. At this time, wire rope loop 12 is in a naturally slack state.

[0028] 2. Tensioning the wire rope loop 12: Simultaneously rotate the rocker arm of the hand chain hoist 10 on both banks to shorten the distance between the lifting lug and the first anchor rod 8, causing the support column 6 to tilt outward (away from the center of the river channel) around the hinge axis; when the support column 6 tilts, the top pulley 11 moves outward, applying lateral tension to the wire rope loop 12 until the wire rope loop 12 has no obvious drooping and no obvious shaking when moved, then stop rotating the hand chain hoist 10.

[0029] 3. Measurement component installation: Fix the support plate 1 and the wire rope ring 12 with a clamp, fix the winch 2 on the support plate 1, lead one end of the cable 3 out from the winch 2 and seal it with ADCP4.

[0030] III. Formal Measurement Phase 1. Parameter setting: Open the data processing software on the computer and enter the preset measurement parameters: lateral movement step distance (e.g., 1m / measuring point), ADCP4 measurement duration (e.g., 3-5s for each measuring point), and measurement endpoint (right bank boundary).

[0031] 2. Automated measurement execution: The computer sends a "start lateral movement" command, which the controller receives and drives the geared motor 15 to move, causing the support plate 1 to move from the starting point on the left bank to the right. When the first measuring point is reached, the computer sends a "stop movement" command through the controller, and the geared motor 15 stops.

[0032] The computer sends the command "lower cable 3", and the controller controls the winch 2 to rotate in the forward direction, lowering cable 3 to ADCP4 to reach the target water depth (preset by the computer based on the previous debugging data); ADCP4 starts to collect flow velocity and water depth data, and angle sensor 17 simultaneously collects the tilt angle data of cable 3. All data are transmitted to the computer in real time through the controller, and the computer automatically stores and marks the measurement point number.

[0033] After the measurement at this point is completed, the computer sends the command "Retrieve Cable 3", and the winch 2 rotates in the opposite direction to retrieve Cable 3 until ADCP4 leaves the water surface; then the computer sends the command "Continue to move laterally", repeating the above "move-stop-lower-collect-retrieve" process until the support plate 1 reaches the end point on the right bank, completing the full-section measurement.

[0034] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this utility model should not be considered as limited to the specific forms described in the embodiments. The scope of protection of this utility model also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A river cross section measuring device, characterized by: It includes two support columns fixedly installed on both banks of the river. A first bracket is fixedly connected to the top of the support column. A support shaft is mounted on the first bracket. Multiple pulleys are mounted on the support shaft. Multiple wire rope loops are respectively mounted on each pair of pulleys. It also includes a support plate, which is fixedly connected to the wire rope loops. A winch is connected to the support plate. A cable is wound on the winch. The lower end of the cable is connected to a measuring element used to measure the river.

2. The river cross-section measuring device according to claim 1, characterized in that: It also includes a first anchor rod and a second anchor rod. The lower end of the support column is hinged to the first anchor rod. A lifting lug is fixedly connected to the support column, and a hand-operated hoist is connected between the lifting lug and the first anchor rod.

3. The river cross-section measuring device according to claim 2, characterized in that: A foot pedal is fixedly connected to the upper end of the first anchor rod.

4. The river cross-section measuring device according to claim 1, characterized in that: A geared motor is installed on one of the first supports, and the geared motor is connected to the support shaft through a sprocket and chain transmission mechanism.

5. A river cross-section measuring device according to any one of claims 1 to 4, characterized in that: A second bracket is installed on the support plate. The second bracket is equipped with a rotating shaft and an angle sensor. A guide cable shaft is supported on one side of the winch. Both ends of the guide cable shaft are fixedly connected to the rotating shaft through connecting plates. The cable wound on the winch rests against the guide cable shaft.

6. The river cross-section measuring device according to claim 5, characterized in that: The measuring element includes an ADCP, on which a counterweight is mounted.

7. A river cross-section measuring device according to claim 6, characterized in that: It also includes a controller, an ADCP and an angle sensor connected to the controller input, and a winch connected to the controller output.

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