A detection device for river siltation

Abstract

This application relates to a detection device for river siltation. It includes a cable-mounted device, a connecting frame, a sliding frame, and a laser emitter. The connecting frame is connected to the steel cables of the cable-mounted device, the sliding frame is slidably connected to the connecting frame, and the laser emitter is connected to the sliding frame. This invention, through the cooperation of the connecting frame, sliding frame, laser emitter, laser receiver, detection module, multi-stage push rod, probe, and adjustment mechanism, enables the probe to automatically detect river siltation. Furthermore, as the connecting frame gradually moves to the concave area of ​​the steel cable, the adjustment mechanism automatically and gradually adjusts the height of the probe, ensuring that the probe and the test point always maintain a preset distance. This eliminates the need to recalculate the preset descent distance of the probe and avoids positional deviations between the probe and the test point caused by the concavity of the steel cable, saving time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of river siltation detection, and in particular to a detection device for river siltation. Background Art

[0002] With the intensification of global climate change and human activities, river ecological and environmental problems are becoming increasingly prominent, among which river siltation is particularly serious. River siltation not only affects the fluidity of water bodies and changes the morphology of riverbeds, but may also cause flood disasters, threaten waterway safety, and even have a profound impact on water resource utilization and river basin ecological balance. Therefore, real-time and accurate monitoring and assessment of river siltation is of great significance for ensuring the rational use of water resources, flood prevention and disaster reduction, and maintaining the health of river ecosystems.

[0003] In the prior art, an intelligent channel siltation and flow measurement system is usually used to detect the siltation condition of a river. When in use, the operator only needs to use the cable hanging method in the intelligent channel siltation and flow measurement system to move the lifting device to just above the specified water surface, and then use the lifting device to lower the probe to a preset height multiple times, so that the probe is in a specified detection position in the water, thereby using the probe to achieve multiple fixed-point detection of the siltation condition of the river; but due to the action of gravity on the cable in the cable hanging method, the middle area of ​​the cable will be sunken compared to the two end areas, so that when the lifting device moves to the middle area of ​​the cable, the initial height of the probe will gradually decrease as the lifting device is sunken due to the depression of the cable, resulting in the subsequent lifting device When the probe is lowered by a preset distance, it is easy for the probe to have a position deviation with the point to be measured in the water, which leads to the need to recalculate the lowered height later, which is more troublesome, and the existing probe is easily entangled by foreign objects such as water plants and plastic bags in the water when detecting in the water, resulting in affecting the detection work of the probe in the water. Summary of the invention

[0004] In view of this, the present invention provides a detection device for river siltation, which can solve the shortcomings of the existing intelligent channel siltation and flow measurement system, which is not only prone to position deviation between the probe and the test point in the water when detecting the siltation condition of the river, but also the subsequent descent height of the probe needs to be recalculated, which is more troublesome, and the probe is easily affected by foreign objects such as aquatic plants and plastic bags when detecting in the water.

[0005] The technical implementation scheme of the present invention is: a detection device for river siltation, including a moving seat and a cable hanging device, and also including a connecting frame, a sliding frame, a laser transmitter, a laser receiver, a control box, a detection module, a multi-stage push rod, a probe, a fixing frame, a lever, an adjustment mechanism and a pressing mechanism, wherein the connecting frame is connected between the steel cables of the cable hanging device, the sliding frame is slidably connected to the connecting frame, the laser transmitter is connected to the sliding frame, the laser receiver is connected to the moving seat, and the laser receiver is used to receive the laser emitted by the laser transmitter, so as to control the laser transmitter and the sliding frame. Positioning, the control box is connected to the moving seat, the detection module is connected to the sliding frame, the multi-stage push rod is connected to the detection module, the probe is connected to the telescopic rod of the multi-stage push rod, the fixed frame is connected to the probe, the lever is rotatably connected to the fixed frame, the pressing mechanism is used to squeeze the lever for rotation, so that the lever can pull out the water plants wrapped around the probe by rotation, the adjusting mechanism is used to adjust the height of the sliding frame, and after the laser receiver senses the laser deviation emitted by the laser transmitter, the height of the probe can be adjusted and corrected by using the adjusting mechanism.

[0006] Optionally, the adjustment mechanism includes a servo motor, a winding wheel and a wire rope, the servo motor is connected to the connecting frame, the winding wheel is connected to the output shaft of the servo motor, and both ends of the wire rope are respectively connected to the winding wheel and the sliding frame, and the sliding frame can be pulled to move by the wire rope through the rotation of the winding wheel, thereby adjusting the height of the sliding frame.

[0007] Optionally, the pressing mechanism includes an electric push rod I and a pressure block, the electric push rod I is connected to the fixed frame, the pressure block is connected to the telescopic rod of the electric push rod I, and the pressure block is movably cooperated with the shift rod so that the pressure block can squeeze the shift rod to rotate.

[0008] Optionally, a scraping mechanism is also included, which includes a connecting rod and a scraper, the connecting rod is connected to the detection module, the scraper is connected to the bottom end of the connecting rod, and the scraper is in contact with the lever, so that the scraper can scrape off foreign matter remaining on the lever.

[0009] Optionally, a protective mechanism is also included, which includes an electric roller and a shielding film, the electric roller is connected to the movable seat, two ends of the shielding film are respectively connected to the electric roller and the connecting frame, and the shielding film is located above the steel cable of the cable hanging device, so that the shielding film shields and protects the steel cable of the cable hanging device.

[0010] Optionally, the protective mechanism also includes a magnetic strip, which is symmetrically connected to the two ends of the bottom of the shielding film, so that the shielding film can be adsorbed on the steel cable of the cable hanging device by the magnetic strip, thereby fixing the shielding film.

[0011] Optionally, the protection mechanism also includes a shielding door and an electric push rod II, the shielding door is slidably connected to the moving seat, and the shielding door is used to shield and protect the inside of the moving seat, the electric push rod II is connected to the moving seat, and the telescopic rod of the electric push rod II is connected to the shielding door, so that the electric push rod II can drive the shielding door to move.

[0012] Optionally, a moving mechanism is also included, which includes a guide rail, a dual-axis motor and a moving wheel. The guide rail is slidably connected to the moving seat, the dual-axis motor is connected to the moving seat, and the moving wheel is connected to the output shaft of the dual-axis motor, so that the dual-axis motor can drive the moving wheel to rotate, thereby driving the moving seat to move and adjust.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention can enable the probe to automatically detect siltation in the river through the cooperation of a connecting frame, a sliding frame, a laser transmitter, a laser receiver, a detection module, a multi-stage push rod, a probe and an adjustment mechanism, and when the connecting frame gradually moves to the depressed area of ​​the steel cable, the height of the probe is automatically and gradually adjusted by the adjustment mechanism, so that the probe and the point to be measured always maintain a preset distance value. In this way, the preset distance of the probe descent does not need to be recalculated, and the position deviation between the probe and the point to be measured when the probe is descended due to the depression of the steel cable can be avoided, which saves time and effort.

[0014] 2. The present invention cooperates with the lever, the pressing mechanism and the scraping mechanism to enable the lever to rotate to pull out foreign objects such as water plants and plastic bags wrapped around the probe, thereby preventing foreign objects such as water plants and plastic bags from affecting the detection work of the probe.

[0015] 3. The present invention provides a moving mechanism, which can drive the moving wheel to rotate through a dual-axis motor, thereby driving the moving seat and the probe to move and adjust the position, thereby facilitating siltation detection in other waters of the river. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional view of the movable seat of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0020] Figure 5 It is an exploded view of the pressing mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the scraping mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the protection mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the electric roller, the shielding film and the magnetic strip of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the moving mechanism of the present invention.

[0025] The meanings of the reference numerals in the figure are as follows: 1: moving seat, 2: cable hanging device, 3: connecting frame, 4: sliding frame, 5: laser transmitter, 6: laser receiver, 7: control box, 81: detection module, 82: multi-stage push rod, 9: probe, 10: fixed frame, 11: lever, 12: servo motor, 13: winding wheel, 14: wire rope, 15: electric push rod I, 16: pressure block, 19: connecting rod, 20: scraper, 21: electric roller, 22: shielding film, 23: magnetic strip, 24: shielding door, 25: electric push rod II, 26: guide rail, 27: dual-axis motor, 28: moving wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment: A detection device for river siltation, see Figure 1-Figure 5As shown, it includes a moving seat 1 and a cable hanging device 2; the number of moving seats 1 is two, and they are symmetrically arranged on both sides of the river; the cable hanging device 2 is composed of a double-axis driving motor, a winding wheel and a steel cable, and the moving seat 1 is internally connected with two double-axis driving motors, and the output shafts of the double-axis driving motors are connected to winding wheels, and the winding wheels are connected to steel cables, and the steel cables are wound on the winding wheels; it also includes a connecting frame 3, a sliding frame 4, a laser transmitter 5, a laser receiver 6, a control box 7, a detection module 81, a multi-stage push rod 82, a probe 9, a fixing frame 10, a lever 11, an adjustment mechanism and a pressing mechanism; the connecting frame 3 is connected to The cable hoisting device 2 is connected between the steel cables, so that the double-axis driving motor in the cable hoisting device 2 can drive the winding wheel to rotate, so that the winding wheel can pull the connecting frame 3 through the steel cable to move and adjust the position; the sliding frame 4 is slidably connected to the connecting frame 3; the laser transmitter 5 is connected to the sliding frame 4; the laser receiver 6 is connected to the inner wall of the moving seat 1 on the left, and the laser receiver 6 is used to receive the laser emitted by the laser transmitter 5, so as to position the laser transmitter 5 and the sliding frame 4; the control box 7 is connected to the front end of the moving seat 1 on the left, and the control box 7 is electrically connected to the laser receiver 6; the detection module 81 is connected to the lower end of the sliding frame 4; The multi-stage push rod 82 is connected to the detection module 81; the probe 9 is connected to the telescopic rod of the multi-stage push rod 82, so that the multi-stage push rod 82 can drive the probe 9 to move up and down, and the probe 9 is provided with a liquid level sensor, a siltation sensor and an ultrasonic sensor. The liquid level sensor, the siltation sensor and the ultrasonic sensor can be used to detect the liquid level, siltation and flow rate of the water flow respectively, and the detection module 81 is electrically connected to the probe 9, so that the detection module 81 can detect abnormalities and transmit the data detected by the liquid level sensor, the siltation sensor and the ultrasonic sensor in the probe 9; the fixing frame 10 is connected to the probe 9; four The lever 11 is connected to the fixed frame 10 in an intermittent rotation manner; the pressing mechanism is used to squeeze the lever 11 to rotate, so that the lever 11 can pull out the water plants wrapped around the probe 9 through rotation, thereby preventing the water plants from affecting the detection work of the probe 9; the adjusting mechanism is used to adjust the height of the sliding frame 4, the detection module 81, the multi-stage push rod 82 and the probe 9. After the laser receiver 6 senses that the laser emitted by the laser transmitter 5 is misaligned, the height of the probe 9 can be adjusted and corrected using the adjusting mechanism, so that the probe 9 can be moved to the specified position in the water according to the preset moving distance, thereby preventing the probe 9 from being misaligned after being moved into the water.

[0028] See also Figure 3As shown, the adjustment mechanism includes a servo motor 12, a winding wheel 13 and a wire rope 14; the servo motor 12 is connected to the connecting frame 3; the winding wheel 13 is connected to the output shaft of the servo motor 12, so that the servo motor 12 can drive the winding wheel 13 to rotate; the two ends of the wire rope 14 are respectively connected to the winding wheel 13 and the sliding frame 4, and the wire rope 14 can be used to pull the sliding frame 4 to move through the rotation of the winding wheel 13, thereby adjusting the height of the sliding frame 4, the detection module 81, the multi-stage push rod 82 and the probe 9.

[0029] See also Figure 4 and Figure 5 As shown, the pressing mechanism includes an electric push rod Ⅰ15 and a pressure block 16; the two electric push rods Ⅰ15 are connected to the fixed frame 10; the pressure block 16 is connected between the telescopic rods of the two electric push rods Ⅰ15, so that the electric push rod Ⅰ15 can drive the pressure block 16 to move, and the pressure block 16 and the lever 11 are movably matched, so that the pressure block 16 can squeeze the lever 11 to rotate when moving.

[0030] When in use, first start the laser transmitter 5 and the laser receiver 6, so that the laser transmitter 5 emits laser light, and the laser receiver 6 receives the laser light emitted by the laser transmitter 5, and then use the cable hanging device 2 to drive the connecting frame 3 to move left or right, thereby driving the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 to move left or right, so that the probe 9 moves to the water surface, and the probe 9 moves to the top of the point to be measured in the water, and then the multi-stage push rod 82 drives the probe 9 to move downward by a preset distance, so that the probe 9 enters the water, and moves the probe 9 to the point to be measured in the water, and then the electric push rod Ⅰ15 drives the pressing block 16 to move downward, so that the pressing block 16 squeezes the lever 11 to rotate, so that the lever The rod 11 pushes away the water plants around the probe 9, thereby preventing the water plants from wrapping around the probe 9 and affecting the detection work. Then, the position of the probe 9 in the water to be tested is used for detection. In this way, the siltation condition in the river can be detected. After the position of the water to be tested is detected, the electric push rod Ⅰ15 drives the pressure block 16 to move upward and reset, so that the pressure block 16 squeezes the push rod 11 to reverse and reset, and then the multi-stage push rod 82 drives the probe 9 to continue to move downward by a preset distance, so as to detect other water to be tested points in the vertical direction. After the other water to be tested points in the vertical direction are detected, the multi-stage push rod 82 drives the probe 9 to move upward and reset, and then repeats the above operation to continue to detect siltation at the positions of other water to be tested points;When the connecting frame 3 gradually moves to the middle area of ​​the steel cable on the cable hanging device 2, the middle area of ​​the steel cable will be sunken compared with the areas at both ends due to gravity, so that the height of the connecting frame 3, the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 will gradually decrease compared with the initial height, so that the position of the laser emitted by the laser transmitter 5 will gradually move downward. When the laser receiver 6 senses that the received laser is gradually moving downward away from the center, the laser receiver 6 will send a signal. After receiving the signal, the control box 7 will control the servo motor 12 to drive the winding wheel 13 to rotate, so that the winding The wheel 13 pulls the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 to gradually move upwards by winding the wire rope 14, so that the position of the laser emitted by the laser transmitter 5 will also gradually move upwards, and then the laser receiver 6 will sense that the received laser will gradually move to the center, and at the same time, the height of the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 will gradually rise to the same height as the initial height. After that, when the probe 9 moves to the top of the point to be measured in the water, the probe 9 is driven downward by the multi-stage push rod 82 to move a preset distance, so that the probe 9 can be aligned with the point to be measured in the water. When the connecting frame 3 moves from the middle area of ​​the steel cable on the cable hoisting device 2 to the areas at both ends, since the areas at both ends of the steel cable are higher than the middle area, this situation will be opposite to the above situation, so that the control box 7 will control the servo motor 12 to drive the winding wheel 13 to reverse after receiving the signal, so that the winding wheel 13 unwinds the wire rope 14, so that the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 are gradually moved downward and reset under the action of gravity, thereby making the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9 The height will also gradually drop to the same as the initial height. In this way, the above method can be used without recalculating the preset distance that the multi-stage push rod 82 drives the probe 9 to move downward, and can also avoid the situation where the probe 9 moves downward due to the depression of the steel cable on the cable hanging device 2. When all the points to be tested in the water are detected, the cable hanging device 2 drives the connecting frame 3 to move into the moving seat 1, so that the moving seat 1 shields and protects the connecting frame 3, the sliding frame 4, the laser transmitter 5, the detection module 81, the multi-stage push rod 82 and the probe 9, and finally turns off the laser transmitter 5 and the laser receiver 6. ;

[0031] See also Figure 6 As shown, a scraping mechanism is also included, which includes a connecting rod 19 and a scraper 20; the two connecting rods 19 are connected to the bottom of the detection module 81; the scraper 20 is connected to the bottom end of the connecting rod 19, and when the scraper 20 contacts the lever 11, the scraper 20 can scrape off the foreign matter remaining on the lever 11.

[0032] By setting the scraper 20, when the multi-stage push rod 82 drives the probe 9 to move upward and reset, the probe 9 will drive the lever 11 to move upward and reset. When the lever 11 contacts the scraper 20, the scraper 20 will scrape off foreign matter such as water plants and plastic bags remaining on the lever 11 to prevent foreign matter such as water plants and plastic bags from remaining on the lever 11.

[0033] See also Figure 7 and Figure 8 As shown, it also includes a protective mechanism, which includes an electric roller 21, a shielding film 22, a magnetic strip 23, a shielding door 24 and an electric push rod II 25; two electric rollers 21 are installed inside the moving seat 1; the two ends of the shielding film 22 are respectively connected to the electric roller 21 and the connecting frame 3, and the shielding film 22 is wound on the electric roller 21, and the shielding film 22 is above the steel cable of the cable hanging device 2, so that the shielding film 22 shields and protects the steel cable of the cable hanging device 2; the magnetic strip 23 It is symmetrically connected to the front and rear ends of the bottom of the shielding film 22, so that the shielding film 22 can be adsorbed on the steel cable of the cable hanging device 2 by the magnetism of the magnetic strip 23, thereby fixing the shielding film 22; the shielding door 24 is slidably connected to the moving seat 1, and the shielding door 24 is used to shield and protect the inside of the moving seat 1; the electric push rod II 25 is connected to the inside of the moving seat 1, and the telescopic rod of the electric push rod II 25 is connected to the shielding door 24, so that the electric push rod II 25 can drive the shielding door 24 to move open or closed.

[0034] By providing the shielding film 22, the shielding film 22 can shield and protect the steel cable of the cable hanging device 2 to prevent the steel cable of the cable hanging device 2 from being damaged by rain, snow, hail, etc. in bad weather; and by providing the magnetic strip 23, the shielding film 22 can be adsorbed on the steel cable of the cable hanging device 2 by the magnetism of the magnetic strip 23, so as to fix the shielding film 22 to prevent the shielding film 22 from being blown away by the wind, and the shielding film 22 is adsorbed on the steel cable of the cable hanging device 2 by the magnetism of the magnetic strip 23, so that the front and rear ends of the shielding film 22 can present arc surfaces, so that rain, snow, hail, etc. on the shielding film 22 can slide off by the arc surface. , thereby preventing rain, snow, hail, etc. from accumulating on the shielding film 22; when the cable hanging device 2 drives the connecting frame 3 to move, the shielding film 22 is driven to be retracted and unreeled by the electric roller 21 at the same time, so that the shielding film 22 moves synchronously with the connecting frame 3, thereby preventing the connecting frame 3 from tearing off the shielding film 22 when moving; when in use, the shielding door 24 is first driven to move and open by the electric push rod Ⅱ 25, and finally the laser transmitter 5 and the laser receiver 6 are closed, and then the shielding door 24 is driven to move and close by the electric push rod Ⅱ 25, so that the shielding door 24 shields and protects the inside of the moving seat 1 to prevent foreign objects from entering the inside of the moving seat 1 and causing an impact.

[0035] See also Fig. 9As shown, it also includes a moving mechanism, which includes a guide rail 26, a dual-axis motor 27 and a moving wheel 28; the guide rail 26 is slidably connected to the moving base 1; the dual-axis motor 27 is connected to the moving base 1; the moving wheel 28 is connected to the output shafts on the left and right sides of the dual-axis motor 27, so that the dual-axis motor 27 can drive the moving wheel 28 to rotate, thereby driving the moving base 1 to move and adjust.

[0036] When in use, the guide rail 26 is fixed on the bottom surface, and then the moving wheel 28 can be driven to rotate by the dual-axis motor 27, thereby driving the moving seat 1, the cable hanging device 2, the connecting frame 3, the sliding frame 4, the detection module 81, the multi-stage push rod 82 and the probe 9 to move and adjust the position, and then siltation detection is carried out on other water areas of the river.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for detecting river siltation, comprising a movable seat (1) and a cable hanging device (2), characterized in that: The invention also comprises a connecting frame (3), a sliding frame (4), a laser transmitter (5), a laser receiver (6), a control box (7), a detection module (81), a multi-stage push rod (82), a probe (9), a fixing frame (10), a lever (11), an adjustment mechanism and a pressing mechanism. The connecting frame (3) is connected between the steel cables of the cable hanging device (2). The sliding frame (4) is slidably connected to the connecting frame (3). The laser transmitter (5) is connected to the sliding frame (4). The laser receiver (6) is connected to the inside of the moving seat (1). The laser receiver (6) is used to receive the laser emitted by the laser transmitter (5), so as to position the laser transmitter (5) and the sliding frame (4). The control box (7) is connected to the moving seat (1). The detection module (81) is connected to the sliding frame (4), the multi-stage push rod (82) is connected to the detection module (81), the probe (9) is connected to the telescopic rod of the multi-stage push rod (82), the fixing frame (10) is connected to the probe (9), the lever (11) is rotatably connected to the fixing frame (10), the pressing mechanism is used to squeeze the lever (11) to rotate, so that the lever (11) pulls away the water grass wrapped around the probe (9) by rotating, the adjusting mechanism is used to adjust the height of the sliding frame (4), and after the laser receiver (6) senses the laser deviation emitted by the laser transmitter (5), the adjusting mechanism can be used to adjust the height of the probe (9); The adjusting mechanism comprises a servo motor (12), a winding wheel (13) and a steel wire rope (14); the servo motor (12) is connected to the connecting frame (3); the winding wheel (13) is connected to the output shaft of the servo motor (12); two ends of the steel wire rope (14) are respectively connected to the winding wheel (13) and the sliding frame (4); the steel wire rope (14) can be used to pull the sliding frame (4) to move by rotating the winding wheel (13), thereby adjusting the height of the sliding frame (4).

2. A detection device for river siltation according to claim 1, characterized in that: The pressing mechanism comprises an electric push rod I (15) and a pressing block (16), wherein the electric push rod I (15) is connected to the fixing frame (10), and the pressing block (16) is connected to the telescopic rod of the electric push rod I (15), and the pressing block (16) is movably matched with the shifting rod (11), so that the pressing block (16) can press the shifting rod (11) to rotate.

3. A detection device for river siltation according to claim 2, characterized in that: It also includes a scraping mechanism, the scraping mechanism including a connecting rod (19) and a scraper (20), the connecting rod (19) being connected to the detection module (81), the scraper (20) being connected to the bottom end of the connecting rod (19), and the scraper (20) being in contact with the lever (11), so that the scraper (20) can scrape off foreign matter remaining on the lever (11).

4. A detection device for river siltation according to claim 3, characterized in that: The invention also comprises a protective mechanism, the protective mechanism comprising an electric roller (21) and a shielding film (22), the electric roller (21) being connected to the movable seat (1), the two ends of the shielding film (22) being respectively connected to the electric roller (21) and the connecting frame (3), and the shielding film (22) being located above the steel cable of the cable hanging device (2), so that the shielding film (22) shields and protects the steel cable of the cable hanging device (2).

5. A detection device for river siltation according to claim 4, characterized in that: The protective mechanism also includes a magnetic strip (23), and the magnetic strip (23) is symmetrically connected to the two ends of the bottom of the shielding film (22), so that the shielding film (22) can be adsorbed on the steel cable of the cable hanging device (2) by the magnetic strip (23), thereby fixing the shielding film (22).

6. A detection device for river siltation according to claim 5, characterized in that: The protection mechanism further comprises a shielding door (24) and an electric push rod II (25); the shielding door (24) is slidably connected to the moving seat (1), and the shielding door (24) is used to shield and protect the interior of the moving seat (1); the electric push rod II (25) is connected to the moving seat (1), and a telescopic rod of the electric push rod II (25) is connected to the shielding door (24), so that the electric push rod II (25) can drive the shielding door (24) to move.

7. A detection device for river siltation according to claim 6, characterized in that: The invention also comprises a moving mechanism, wherein the moving mechanism comprises a guide rail (26), a double-axis motor (27) and a moving wheel (28), wherein the guide rail (26) is slidably connected to the moving seat (1), the double-axis motor (27) is connected to the moving seat (1), and the moving wheel (28) is connected to the output shaft of the double-axis motor (27), so that the double-axis motor (27) can drive the moving wheel (28) to rotate, thereby driving the moving seat (1) to move and adjust its position.

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