Water level sounding device for river dredging

Abstract

The invention discloses a water level sounding device for river dredging, and relates to the technical field of water level sounding, the water level sounding device comprises a balance mechanism, a measuring mechanism for measuring the water level, a shore side module, a camera and a controller, the balance mechanism comprises a base, a lifting rod, a balance plate and a spirit bubble, and the spirit bubble is fixed to the balance plate and located in the center of the balance plate; the measuring mechanism comprises a ruler plate, a prompting assembly used for prompting whether the ruler plate extends into water or not and a driving unit used for driving the ruler plate to ascend and descend, the ruler plate is provided with scales distributed in the length direction, the ruler plate is perpendicular to the balance plate and is in sliding connection with the balance plate, and the prompting assembly comprises a first electrode needle, a second electrode needle and a prompting lamp. The first electrode needle and the second electrode needle extend out towards the end, extending to the water surface, of the ruler plate, and the indicator lamp is electrically connected with the first electrode needle and the second electrode needle. The method and the device have the effect of enabling the measured data to be more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of water level sounding, and in particular to a water level sounding device for river dredging. Background Art

[0002] Dredging is the process of removing silt from the bottom of a river in order to clear it. Before dredging, the water level of the river is measured to determine the depth to be removed.

[0003] Traditionally, water level is measured using a water gauge, which should be inserted vertically into the water. This process is manually operated, but the water level in the river is not uniform. The terrain, the curvature of the river, etc. will lead to different water levels in different locations. This requires staff to measure at multiple points. In theory, it is possible to measure while walking along the shore, but in reality there will be various facilities on both sides of the river, and some locations may not be accessible.

[0004] At present, water level, water depth and siltation can also be measured by unmanned survey ships. However, existing unmanned survey ships often need to be equipped with satellite positioning systems, single-beam / multi-beam depth sounding radars, obstacle avoidance radars and other electrical components, and the overall price is relatively high. However, when streets, scenic spots, etc. need to clear silt, there is actually no need for the above many functional requirements. That is, the existing survey ships are not cost-effective and are relatively unsuitable for the demand scenarios. Therefore, this application proposes a new technical solution. Summary of the invention

[0005] In order to improve the adaptability of the device during the river dredging measurement process, the present application provides a water level depth measuring device for river dredging.

[0006] The present application provides a water level depth measuring device for river dredging, which adopts the following technical solution: A water level sounding device for river dredging, comprising a balancing mechanism, a measuring mechanism for measuring water level, a shore module, a camera and a controller, wherein the balancing mechanism comprises a base as a floating body, a lifting rod, a balancing plate and a level bubble, wherein the lifting rod has a plurality of ends connected to the base and the other ends connected to the balancing plate movably upward; the level bubble is fixed to the balancing plate and is located at the center of the balancing plate; The measuring mechanism includes a ruler, a prompting assembly for prompting whether the ruler is extended into the water, and a driving unit for driving the ruler to rise and fall. The balance board extends beyond the side wall of the base, and the balance board is provided with a guide hole for the ruler to pass through in the thickness direction. The ruler is provided with scales distributed along the length direction. The ruler is perpendicular to the balance board and passes through the guide hole to be connected with the balance board in a sliding manner. The top of the ruler is folded outward to form a limit. The prompting assembly includes an electrode needle 1, an electrode needle 2, and a prompting light. The electrode needle 1 and the electrode needle 2 extend toward the end of the ruler extending toward the water surface. The prompting light is electrically connected to the electrode needle 1 and the electrode needle 2. The prompting light is installed on the side wall of the ruler close to the top. The controller is electrically connected to the driving unit. The balance board is equipped with a camera for photographing a level bubble and a ruler, and the camera is located on the balance board. The shore module includes a personal terminal, a remote controller wirelessly connected to the controller, and a laser rangefinder used as a shore tilt and level detection and measurement mechanism.

[0007] Optionally, the lifting rod includes an electric cylinder, a cylinder body of the electric cylinder is fixed to the base and an end of the telescopic rod is hinged to the balance plate, and the electric cylinder is electrically connected to the controller.

[0008] Optionally, the balance plate is provided with a plurality of grooves around the horizontal bubble, and the length of the grooves extends radially along the horizontal bubble. The balance plate is provided with a leveling component, and the leveling component includes a steel ball and a thin film pressure sensor. The thin film pressure sensor is fixed to the inner wall of the groove away from the horizontal bubble, and the thin film pressure sensor is electrically connected to the controller.

[0009] Optionally, the controller is configured as: Define the position of the horizontal bubble as the origin of the three-dimensional space coordinate system; Take four sampling points evenly distributed around the origin on the balance board and call them A, B, C, and D respectively. A and B are symmetrical, C and D are symmetrical, the coordinates of A are (X1, Y1, Z1), the coordinates of B are (X2, Y2, Z2), the coordinates of C are (X3, Y3, Z3), and the coordinates of D are (X4, Y4, Z4); If Z1>Z2, the electric cylinder located on the side of the origin away from B is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z1<Z2, the electric cylinder located on the side of the origin away from A is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; If Z3>Z4, the electric cylinder located on the side of the origin away from D will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z3<Z4, the electric cylinder located on the side of the origin away from C will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value.

[0010] Optionally, the controller is electrically connected to the prompt component and the drive unit, and is configured to: determine whether a preset automatic adjustment instruction is received, and if so, stop the electric cylinder and the drive unit when the feedback from the prompt component indicates contact with the water surface.

[0011] Optionally, the interior of the ruler is hollow and is provided with multiple groups of prompt components, and the electrode needle 1 and the electrode needle 2 in each group of the prompt components are arranged along the length direction of the ruler board and are respectively connected to the positive and negative poles of the corresponding prompt lights. The prompt lights are arranged along the length direction of the ruler board and are located at a section of the ruler board away from the water surface.

[0012] Optionally, a laser is installed on the laser rangefinder, and the laser of the laser is parallel to the detection path of the laser rangefinder.

[0013] Optionally, the bottom surface of the groove increases in height from the center toward both ends.

[0014] To summarize, the present application includes the following beneficial technical effects: a combination of laser rangefinders, level bubbles, etc. allows workers to stand on the shore to measure water levels at various locations in the river channel without the need for radar or beam detectors, so it is more cost-effective and can improve the adaptability of the device to actual needs during the river dredging and measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a schematic diagram of the structure of the prompt component; Figure 3 This is a diagram of controller connections.

[0016] Explanation of the reference numerals: 1. Balancing mechanism; 11. Base; 12. Balancing board; 13. Lifting rod; 14. Level bubble; 15. Leveling assembly; 151. Steel ball; 2. Measuring mechanism; 21. Ruler board; 22. Prompt assembly; 221. Electrode needle one; 222. Electrode needle two; 223. Prompt light; 3. Controller. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0018] The embodiment of the present application discloses a water level depth measuring device for river dredging.

[0019] Reference Figure 1 The water level sounding device for river dredging includes a balancing mechanism 1 and a measuring mechanism 2.

[0020] The balancing mechanism 1 includes a base 11, a lifting rod 13, a balancing board 12 and a level bubble 14. In this embodiment, the upper part of the base 11 is a hollow column, and the lower part is an inverted truncated cone structure with a counterweight. The base 11 is made of plastic or the like, and can stably float above the water surface under the action of the counterweight. One end of the lifting rod 13 is installed on the base 11, and the other end is ball-hinged upward to the balancing board 12, that is, when the lifting rod 13 is raised or lowered, the balancing board 12 will not be broken due to the change in angle. There are multiple lifting rods 13; the level bubble 14 is fixed at the center position of the balancing board 12, and the height of the four main directions of the coordinate system can be more intuitively judged by drawing a two-dimensional coordinate system with the center point of the balancing board 12.

[0021] The measuring mechanism 2 includes a ruler plate 21, a prompt assembly 22 and a driving unit. The balance plate 12 extends out of the base 11 and is formed with a guide portion, and the guide portion is vertically opened with a hole for the ruler plate 21 to pass through along the thickness direction. The ruler plate 21 is marked with a scale indicating the water level. The ruler plate 21 is slidably connected to the balance plate 12 and is perpendicular to the balance plate 12. The top end of the ruler plate 21 is folded toward the outside to form a limit, which can effectively prevent the ruler plate 21 from slipping during measurement.

[0022] In one embodiment, the driving unit may be a reduction motor and a gear. The reduction motor is installed inside the balance plate 12 and the output shaft is fixed with the gear. A rack structure is formed on a side wall of the ruler plate 21, and the gear engages with the rack. Therefore, the ruler plate 21 can be raised or lowered when the reduction motor rotates forward or reversely. In order to ensure control accuracy, the reduction motor is preferably a servo model.

[0023] Reference Figure 1 and Figure 2 The prompt component 22 includes an electrode needle 1 221, an electrode needle 222 and a prompt light 223. The electrode needle 1 221 and the electrode needle 2 222 extend toward the end of the ruler 21 extending toward the water surface, and the extended ends of the electrode needle 1 221 and the electrode needle 2 222 are flush with the end of the ruler 21. A battery is fixed in the ruler 21, and the prompt light 223, the electrode needle 1 221 and the electrode needle 2 222 are connected in series with the battery. The prompt light 223 is located on the side wall of the ruler 21 near the top, which makes it easier to observe whether the prompt light 223 is on.

[0024] The height of each position of the balance board 12 can be changed by adjusting the length of the lifting rod 13, so that the balance board 12 can be adjusted to a horizontal position according to the needs; the level bubble 14 can be used to observe whether the balance board 12 is in a horizontal position. When the balance board 12 is adjusted to a horizontal position, the measured value will be more accurate. The ruler 21 passes through the hole on the balance board 12 and extends vertically into the water surface. When the electrode needle 1 221 and the electrode needle 2 222 touch the water surface, they will be energized, so that the prompt light 223 will light up, and the water level value can be recorded more timely, and the data will be more accurate.

[0025] Reference Figure 3Because the device is to be put into the river, a camera is installed on the balance board 12 to allow the staff to see it. The camera should be a wireless network model. The camera shoots the level bubble 14 and the ruler 21, and the staff connects to the camera through the mobile phone network to realize real-time viewing.

[0026] The present application also includes a controller 3 and a shore module. The controller 3 is installed in the base 11 and connected to the above-mentioned motor. The shore module includes a personal terminal, a remote controller for wireless connection with the controller 3, and a laser rangefinder. The personal terminal is such as a mobile phone. The control of the remote controller is the same as the rotation control of the motor in this embodiment. The remote controller technology is an existing technology and will not be described in detail. The laser rangefinder can be fixed together with the remote controller or the circuit components can be removed and installed in the same housing for easy handholding.

[0027] When using: The staff first observes the level bubble 14 on the shore to level the balance board 12, then ties the device with a rope, then puts it into the river channel and pushes it to a suitable position with a bamboo pole, etc., then controls the driving unit through the remote control to drive the ruler 21 to descend, and checks the camera image with the mobile phone. When the prompt light 223 is on, the staff stops and reads the scale; then, the staff uses the laser rangefinder to tilt and horizontally detect the distance to a specified part on the ruler 21 of the device, and then the trigonometric function (i.e., the height side is calculated when the hypotenuse and the horizontal side are known) can be used to calculate the height difference between the specified part and the laser rangefinder; assuming that the distance between a position K on the shore and the water surface is h1 when the water level is standard, and the water level is h0 at this time, then the height of K = h0 + h1; the water level at this time is (h0 + h1) - height difference - the length from the specified part of the ruler 21 to the lowest end.

[0028] According to the above settings, this device can help staff know the water level at various locations in the river channel, and does not require radar or beam detectors, so it is more cost-effective and can improve the adaptability of the device to actual needs during the river dredging measurement process.

[0029] In order to use the laser rangefinder more accurately, a laser (i.e., a lamp that can emit a visible laser beam) is fixed on the laser rangefinder, and the laser beam of the laser is parallel to the detection path of the laser rangefinder and the two are as close as possible.

[0030] According to the above settings, the staff can observe the landing point of the laser to assist in determining the landing point of the detection path of the laser rangefinder relative to the device.

[0031] In one embodiment of the present application, the lifting rod 13 includes an electric cylinder, and the cylinder body of the electric cylinder is placed in the base 11 and the telescopic rod is extended, and the electric cylinder is electrically connected to the controller 3.

[0032] The advantage of the above arrangement is that the device can be leveled after it drifts into the river. If the leveling is wrong before, there is no need to pull the device back with a rope, and the leveling can be done remotely.

[0033] In another embodiment, referring to Figure 1 The balance plate 12 is provided with a plurality of grooves around the level bubble 14, and the length of the grooves extends radially along the level bubble 14. The balance plate 12 is provided with a leveling component 15, and the leveling component 15 includes a steel ball 151 and a film pressure sensor. The film pressure sensor is fixed to the inner wall of the groove away from the level bubble 14, and the film pressure sensor is electrically connected to the controller 3. The controller 3 is configured as follows: Define the position of the horizontal bubble 14 as the origin of the three-dimensional space coordinate system; Take four sampling points evenly distributed around the origin on the balance board 12, and call them A, B, C, and D respectively, and A and B are symmetrical, C and D are symmetrical, the coordinates of A are (X1, Y1, Z1), the coordinates of B are (X2, Y2, Z2), the coordinates of C are (X3, Y3, Z3), and the coordinates of D are (X4, Y4, Z4); If Z1>Z2, the electric cylinder located on the side of the origin away from B is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z1<Z2, the electric cylinder located on the side of the origin away from A is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; the standard value can be 0, or an interval can be selected after analyzing the specific situation, which can reduce the possibility of misjudgment due to the existence of a certain pressure.

[0034] If Z3>Z4, the electric cylinder located on the side of the origin away from D will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z3<Z4, the electric cylinder located on the side of the origin away from C will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value.

[0035] The film pressure sensor is electrically connected to the controller 3. The controller 3 can obtain the position of each film pressure sensor and feed back the pressure data detected by the film pressure sensor at each position. According to the data, it is analyzed which electric cylinders need to perform extension and retraction work, thereby controlling different lifting rods 13 to rise or fall until the pressure value fed back by the film pressure sensor reaches the set standard value and stops.

[0036] According to the above arrangement, on the one hand, the balance board 12 can be adjusted manually without manual operation, and on the other hand, the balance board 12 can be adjusted automatically during the shaking process in the water.

[0037] Furthermore, the above-mentioned prompt component 22 and the drive unit (i.e., the motor) are electrically connected to the controller 3, respectively. The connection example of the prompt component 22 is: the output and input ends of the controller are respectively connected to an electrode needle, and a current / voltage signal is returned from the input end when the water surface is touched. At this time, the controller 3 is configured to: determine whether a preset automatic adjustment instruction is received, and if so, stop the electric cylinder and the drive unit when the feedback of the prompt component 22 indicates that the water surface is touched.

[0038] According to the above settings, firstly, if the staff does not send an automatic adjustment command to the controller 3 through the remote control (such as turning on a function switch), the electric cylinder will not move repeatedly when the device is moved; secondly, when measuring, the balance board 12 and the ruler board 21 will stop and be locked as soon as they touch the water surface to prevent them from changing again and affecting the measurement results.

[0039] In another embodiment, the bottom surface of the groove increases in height from the center to both ends, so that the steel ball 151 can be kept in the center of the groove when it is horizontal, thereby reducing the possibility that the electric cylinder still works when the balance board 12 remains horizontal, and also reducing the interference caused by small shakes.

[0040] In another embodiment of the present application, referring to Figure 1 The interior of the ruler 21 is hollow and is provided with multiple groups of prompt components 22 which are arranged in parallel. The electrode needle 1 221 and the electrode needle 2 222 in each group of prompt components 22 are arranged along the length direction of the ruler 21 and are connected in series with the prompt lights 223 in the same group. The prompt lights 223 in each group of prompt components 22 are also arranged along the length direction of the ruler 21 and are located at a section of the ruler 21 away from the water surface.

[0041] When the ruler 21 just touches the water surface, the electrode needle 1 221 and the electrode needle 2 222 will be energized, so that the connected indicator light 223 will light up, indicating that it has touched the water surface and needs to read data. If the ruler 21 continues to extend, as the ruler 21 extends deeper, more wires will be energized, and more indicator lights 223 will light up, so it can be known that the ruler 21 has been extended too far into the water. The measurement data at this time is not accurate and needs to be readjusted and roughly evaluated by how much it exceeds. This design can help calibrate whether the measurement data of the ruler 21 is the data when it just reaches the water surface, and the data obtained is more accurate.

[0042] Reference Figure 1 The bottom of the base 11 is equipped with a plurality of universal wheels. Since the water level measurement needs to change positions frequently, the universal design is more convenient for movement. The base 11 is hollow inside, so it can be more portable when moving.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water level sounding device for river dredging, characterized in that: The invention comprises a balancing mechanism (1), a measuring mechanism (2) for measuring water level, a shore module, a camera and a controller (3); the balancing mechanism (1) comprises a base (11) as a floating body, a lifting rod (13), a balancing plate (12) and a level bubble (14); the lifting rod (13) has a plurality of ends connected to the base (11) and the other ends movably connected to the balancing plate (12) upward; the level bubble (14) is fixed to the balancing plate (12) and is located at the center of the balancing plate (12); The measuring mechanism (2) comprises a ruler (21), a prompting assembly (22) for prompting whether the ruler (21) is extended into water, and a driving unit for driving the ruler (21) to rise and fall. The balance plate (12) extends beyond the side wall of the base (11), and the balance plate (12) is provided with a guide hole for the ruler (21) to pass through in the thickness direction. The ruler (21) is provided with scales distributed in the length direction. The ruler (21) is perpendicular to the balance plate (12) and passes through the guide hole to be slidably connected to the balance plate (12). The top end of the plate (21) is folded outward to form a limit position, the prompt component (22) comprises an electrode needle 1 (221), an electrode needle 2 (222) and a prompt light (223), the electrode needle 1 (221) and the electrode needle 2 (222) extend toward the end of the ruler plate (21) extending toward the water surface, the prompt light (223) is electrically connected to the electrode needle 1 (221) and the electrode needle 2 (222), the prompt light (223) is installed on the side wall of the ruler plate (21) close to the top end, and the controller (3) is electrically connected to the drive unit; A camera for photographing a level bubble (14) and a ruler (21) is mounted on the balancing board (12), and the camera is located on the balancing board (12). The shore module comprises a personal terminal, a remote controller wirelessly connected to a controller, and a laser rangefinder used as a shore tilt and level detection and measurement mechanism.

2. The water level sounding device for river dredging according to claim 1, characterized in that: The lifting rod (13) comprises an electric cylinder, the cylinder body of the electric cylinder is fixed to the base (11) and the telescopic rod end is hinged to the balance plate (12), and the electric cylinder is electrically connected to the controller (3).

3. The water level sounding device for river dredging according to claim 2, characterized in that: The balancing plate (12) is provided with a plurality of grooves around the level bubble (14), the length of the grooves extending radially along the level bubble (14), the balancing plate (12) is provided with a leveling component (15), the leveling component (15) comprises a steel ball (151) and a thin film pressure sensor, the thin film pressure sensor is fixed to the inner wall of the groove away from the level bubble (14), and the thin film pressure sensor is electrically connected to the controller (3).

4. The water level sounding device for river dredging according to claim 3, characterized in that: The controller (3) is configured as follows: The position of the horizontal bubble (14) is defined as the origin of the three-dimensional space coordinate system; Take four sampling points evenly distributed around the origin on the balance board (12), and call them A, B, C, and D respectively, and A and B are symmetrical, C and D are symmetrical, the coordinates of A are (X1, Y1, Z1), the coordinates of B are (X2, Y2, Z2), the coordinates of C are (X3, Y3, Z3), and the coordinates of D are (X4, Y4, Z4); If Z1>Z2, the electric cylinder located on the side of the origin away from B is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z1<Z2, the electric cylinder located on the side of the origin away from A is contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; If Z3>Z4, the electric cylinder located on the side of the origin away from D will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value; if Z3<Z4, the electric cylinder located on the side of the origin away from C will be contracted until the pressure value fed back by the film pressure sensor reaches the set standard value.

5. The water level sounding device for river dredging according to claim 4, characterized in that: The controller (3) is electrically connected to the prompt component (22) and the drive unit, and is configured to determine whether a preset automatic adjustment instruction is received, and if so, stop the electric cylinder and the drive unit when feedback from the prompt component (22) indicates contact with the water surface.

6. The water level sounding device for river dredging according to claim 1, characterized in that: The ruler (21) is hollow inside and is provided with a plurality of groups of prompt components (22); the electrode needles 1 (221) and the electrode needles 2 (222) in each group of the prompt components (22) are arranged along the length direction of the ruler (21) and are respectively connected to the positive and negative electrodes of corresponding prompt lights (223); the prompt lights (223) are arranged along the length direction of the ruler (21) and are located at a section of the ruler (21) away from the water surface.

7. The water level sounding device for river dredging according to claim 1, characterized in that: The laser rangefinder is equipped with a laser, and the laser of the laser is parallel to the detection path of the laser rangefinder.

8. The water level sounding device for river dredging according to claim 3, characterized in that: The bottom surface of the groove increases in height from the center to both ends.

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