A device for detecting silt thickness in a water conservancy project river channel

Abstract

The present invention discloses a device for detecting silt thickness in a water conservancy project channel, comprising a support frame, the support frame comprising a U-shaped plate and two triangular support frames fixedly connected to one end of the bottom of the U-shaped plate. A first electric telescopic rod is symmetrically fixedly connected to one end of the top of the support frame, the output ends of the two first electric telescopic rods are fixedly connected to a same movable plate, and the movable plate is movably sleeved on the outside of the U-shaped plate in the support frame. A measuring rod is provided at one end of the bottom of the movable plate, and the measuring rod and the movable plate are connected by a measuring mechanism. The two triangular support frames in the support frame are fixedly connected to the same support plate, and a through groove for use with the measuring rod is provided on the surface of the support plate. By providing the measuring mechanism, the present invention not only simplifies and speeds up the work of measuring silt thickness, but also effectively improves the accuracy of detection.

Description

Technical Field

[0001] The invention belongs to the technical field of river channel regulation, and in particular relates to a device for detecting silt thickness in a water conservancy project river channel. Background Art

[0002] According to relevant statistics, about 1.4 billion tons of silt are deposited in natural or artificial water bodies every year. A large amount of silt deposition will cause the riverbed to rise, resulting in a decrease in the river's water storage capacity. In addition, silt deposition at the bottom of the river will also affect the smooth passage of waterways, causing some large-tonnage ships to be unable to pass. Therefore, it is important to be able to understand the thickness of river silt in real time and clean up the river silt in time. When cleaning the silt in the channel, it is necessary to pre-calculate the thickness of the silt at the bottom of the channel in order to effectively allocate the manpower for cleaning the silt.

[0003] Most of the existing silt thickness detection devices use a measuring rod that is inserted vertically into the bottom of the river channel. Since the silt is soft, the rod can be easily inserted into it. When the rod can no longer be inserted, it indicates that the bottom of the rod has reached the bottom of the river channel. Then the measuring rod is pulled out, and the thickness of the river channel silt can be known by observing the silt remaining on its surface. Although this method is simple, when the measuring rod is removed from the silt, the silt on the surface of the measuring rod is easily slid down or washed away by gravity and the scouring of water flow, resulting in inaccurate measurement results. In addition, most of the existing silt thickness detection devices are unable to clean the silt on the surface of the measuring rod when the measuring rod is pulled out of the silt. Manual cleaning is required after each use, which is cumbersome. Moreover, when there are many floating objects on the water surface, the existing silt thickness detection device cannot push away the floating objects when measuring river channel silt. Before and after the measuring rod enters the water, the floating objects on the water surface need to be salvaged, which has certain usage limitations. Summary of the Invention

[0004] In view of the above problems, the present invention provides a device for detecting silt thickness in a water conservancy project river channel to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for detecting the silt thickness of a river channel in a water conservancy project, comprising a support frame, the support frame consisting of a U-shaped plate and two triangular support frames fixedly connected to one end of the bottom of the U-shaped plate, the top end of the support frame is symmetrically fixedly connected to a first electric telescopic rod, the output ends of the two first electric telescopic rods are commonly fixedly connected to the same movable plate, and the movable plate is movably sleeved on the outside of the U-shaped plate in the support frame, a measuring rod is provided at the bottom end of the movable plate, the measuring rod and the movable plate are connected by a measuring mechanism, the two triangular support frames in the support frame are commonly fixedly connected to the same support plate, the surface of the support plate is provided with a through groove for use with the measuring rod, the upper and lower ends of the support plate are provided with a silt cleaning device for use with the measuring rod, and the bottom end of the support plate is provided with an auxiliary water entry device for use with the measuring rod.

[0006] Furthermore, the measuring mechanism includes a fixed rod symmetrically fixedly connected to one end of the bottom of the movable plate, the outside of the two fixed rods are movably sleeved with a first spring, the opposite ends of the two first springs are fixedly connected to a slider, the bottom ends of the two sliders are hinged with a connecting rod, the ends of the two connecting rods away from the sliders are hinged to the measuring rod, the internal sliding connection of the movable plate is connected to a U-shaped frame, and the U-shaped frame is arranged between the two fixed rods, and two second springs are fixedly connected between the U-shaped frame and the measuring rod, and a pressure sensor is installed at the top end of the movable plate, and the detection end of the pressure sensor is arranged between the U-shaped frames and extends to the bottom end of the movable plate.

[0007] Furthermore, the sludge cleaning device includes a sludge scraping mechanism and a brushing mechanism;

[0008] The scraper mechanism includes an L-shaped plate symmetrically fixedly connected to one end of the bottom of the support plate. A scraper cover is fixedly connected between the two L-shaped plates, and the scraper cover is movably sleeved on the outside of the measuring rod.

[0009] The transmission gear of the present invention is a gear which is connected with the gear of the driven gear to the gear of the driven gear, and the gear is connected with the gear of the driven gear to the gear of the driven gear.

[0010] Furthermore, the brushing mechanism includes a mounting ring fixedly connected to one end of the bottom of the support plate, the internal rotation of the mounting ring is connected to a second gear ring, the bottom of the second gear ring is fixedly connected to an arc-shaped brush used in conjunction with the measuring rod, the top end of the support plate is fixedly connected to a guide frame, and the external movably sleeve of the guide frame is provided with a square frame, the external fixed sleeve of the first gear shaft is provided with an incomplete gear, and the top end and the bottom end of the inner wall of the square frame are respectively evenly provided with a plurality of tooth grooves that mesh with the incomplete gear, a right-angle plate is fixedly connected to the top of the support plate, and the internal rotation of the right-angle plate is connected to a third gear, the side of the square frame away from the side plate is fixedly connected to a gear plate that meshes with the third gear, and the bottom end of the third gear axle extends to the bottom of the support plate and is fixedly connected to a fourth gear that meshes with the second gear ring.

[0011] Furthermore, one end of the bottom of the support plate is fixedly connected to a U-shaped frame, and the outside of the U-shaped frame is movably sleeved with a round brush used in conjunction with the teeth on the surface of the measuring rod. One end of the bottom of the second gear ring is fixedly connected to a round pin, and one end of the bottom of the mounting ring is provided with a sliding groove used in conjunction with the round pin. The side of the mounting ring away from the round brush is fixedly connected to a hollow frame used in conjunction with the round pin, and a bottom point of the round pin extends to the interior of the hollow frame.

[0012] Furthermore, the auxiliary water entry device includes a floating plate fixedly connected to one end of the bottom of the two second electric telescopic rods, and the cross-sectional shape of the floating plate is a circular ring. The bottom end of the floating plate is fixedly connected to a connecting tube, and the connecting tube is movably sleeved on the outside of the measuring rod, and the outside of the connecting tube is evenly fixedly connected to multiple dial plates.

[0013] Furthermore, the side section of the guide frame is N-shaped.

[0014] Furthermore, the scraper cover is in the shape of an inverted funnel, and the scraper cover fits tightly with the measuring rod.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention is provided with a measuring mechanism, which makes the sludge thickness measurement not only simpler and faster, but also effectively improves the accuracy of detection.

[0017] 2. The present invention is provided with a sludge cleaning device, which can clean the sludge on the surface of the measuring rod by utilizing the cooperation between the structures while the measuring rod is pulled out of the sludge. This not only effectively improves the convenience of cleaning the sludge on the surface of the measuring rod, but also has a good cleaning effect. It can be completed without the use of other power, and is more energy-saving and environmentally friendly.

[0018] 3. The present invention is provided with an auxiliary water entry device, which can push away floating objects on the water surface near the entry position of the measuring rod when the measuring rod moves into or out of the river channel, thereby preventing floating objects on the water surface from affecting the normal use of the measuring rod.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Shows a perspective view of an embodiment of the present invention;

[0022] Figure 2 Shows a front view of an embodiment of the present invention;

[0023] Figure 3 A partial structural perspective view of a sludge cleaning device and an auxiliary water entry device according to an embodiment of the present invention is shown;

[0024] Figure 4 A right sectional view showing part of the structure of a sludge cleaning device according to an embodiment of the present invention is shown;

[0025] Figure 5 A bottom sectional view of part of the structure of the scrubbing mechanism according to an embodiment of the present invention is shown;

[0026] Figure 6 A top cross-sectional view of a portion of the structure of a sludge cleaning device according to an embodiment of the present invention is shown;

[0027] Figure 7 A bottom view of a portion of the structure of the sludge cleaning device and the auxiliary water entry device according to an embodiment of the present invention is shown;

[0028] In the figure: 1, support frame; 2, first electric telescopic rod; 3, movable plate; 4, measuring rod; 5, measuring mechanism; 51, fixed rod; 52, first spring; 53, slider; 54, connecting rod; 55, U-shaped frame; 56, second spring; 57, pressure sensor; 6, support plate; 7, through groove; 8, sludge cleaning device; 81, sludge scraping mechanism; 811, L-shaped plate; 812, sludge scraping cover; 813, side plate; 814, first gear; 815, teeth; 816, driving bevel gear; 817, rotating rod; 818, driven bevel gear; 819, arc ring; 820, circular ring; 8 21. First gear ring; 822. Second gear; 823. Second electric telescopic rod; 824. Scraper; 83. Brushing mechanism; 831. Mounting ring; 832. Second gear ring; 833. Curved brush; 834. Guide frame; 835. Square frame; 836. Incomplete gear; 837. Tooth socket; 838. Right-angle plate; 839. Third gear; 840. Gear plate; 841. Fourth gear; 842. U-shaped frame; 843. Round brush; 844. Round pin; 845. Slide; 846. Hollow frame; 9. Auxiliary water entry device; 91. Float plate; 92. Connecting pipe; 93. Dial plate. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0030] The present invention provides a device for detecting the thickness of silt in a water conservancy project river channel. Figure 1-Figure 7As shown, it includes a support frame 1, which consists of a U-shaped plate and two triangular support frames 1 fixedly connected to one end of the bottom of the U-shaped plate. The top end of the support frame 1 is symmetrically fixedly connected to a first electric telescopic rod 2, and the output ends of the two first electric telescopic rods 2 are commonly fixedly connected to the same movable plate 3, and the movable plate 3 is movably sleeved on the outside of the U-shaped plate in the support frame 1, and a measuring rod 4 is provided at the bottom end of the movable plate 3. The measuring rod 4 and the movable plate 3 are connected by a measuring mechanism 5. The two triangular support frames 1 in the support frame 1 are commonly fixedly connected to the same support plate 6, and a through groove 7 for use with the measuring rod 4 is provided on the surface of the support plate 6. A sludge cleaning device 8 for use with the measuring rod 4 is provided at the upper and lower ends of the support plate 6, and an auxiliary water entry device 9 for use with the measuring rod 4 is provided at the bottom end of the support plate 6;

[0031] The measuring mechanism 5 includes fixed rods 51 symmetrically fixedly connected to one end of the bottom of the movable plate 3. The outsides of the two fixed rods 51 are movably sleeved with first springs 52. The opposite ends of the two first springs 52 are fixedly connected to sliders 53. The bottom ends of the two sliders 53 are hinged with connecting rods 54. The ends of the two connecting rods 54 away from the sliders 53 are hinged to the measuring rod 4. The inside of the movable plate 3 is slidably connected to a U-shaped frame 55, and the U-shaped frame 55 is arranged between the two fixed rods 51. Two second springs 56 are fixedly connected between the U-shaped frame 55 and the measuring rod 4. A pressure sensor 57 is installed at one end of the top of the movable plate 3. The detection end of the pressure sensor 57 is arranged between the U-shaped frames 55 and extends to the bottom end of the movable plate 3.

[0032] When using the device, it is only necessary to move the entire device to the designated position. During testing, it is only necessary to open the two first electric telescopic rods 2, and simultaneously push the movable plate 3 downward through the two electric telescopic rods 2, so that the movable plate 3 pushes the measuring rod 4 to move synchronously into the river channel through the measuring mechanism 5. When the measuring rod 4 is inserted into the mud in the water, there is a certain resistance. At this time, the measuring rod 4 pushes the slider 53 to move to both sides through the two connecting rods 54 and squeezes the first spring 52. At the same time, the measuring rod 4 squeezes the two second springs 56 upward, and squeezes the U-shaped frame 55 upward through the two second springs 56. The U-shaped frame 55 squeezes the detection head of the pressure sensor upward, and the resistance of the measuring rod 4 in the mud is measured by the detection head. At this time, the downward movement height of the measuring rod 4 when entering the mud can be recorded by observing the pressure sensor 57.

[0033] As the measuring rod 4 continues to move downward, when one end of the bottom of the measuring rod 4 moves to the bottom of the river channel, the resistance to the measuring rod 4 increases instantaneously. At this time, under the cooperation between the above structures, the pressure detected by the pressure sensor 57 increases instantaneously. The inspection personnel can judge that the measuring rod 4 has moved down to the bottom of the river channel by the change in the value on the pressure sensor 57. Then, the two first electric telescopic rods 2 are closed, and the height of the measuring rod 4 at this time is observed. The height of the downward movement of the measuring rod 4 at this time is subtracted from the height of the downward movement of the measuring rod 4 when it enters the silt, and the thickness of the silt in the river channel can be obtained.

[0034] The setting of the support frame 1 can ensure that the measuring rod 4 moves vertically downward, which can effectively improve the accuracy of the detection device;

[0035] After the measurement is completed, it is only necessary to reversely activate the two second telescopic rods, and the measuring rod 4 can be pulled out of the mud under the cooperation between the above structures;

[0036] The present invention provides the measuring mechanism 5, which not only makes the sludge thickness measurement easier and faster, but also effectively improves the accuracy of the detection.

[0037] like Figure 1-Figure 7 As shown, the sludge cleaning device 8 includes a sludge scraping mechanism 81 and a brushing mechanism 83;

[0038] The scraper mechanism 81 includes an L-shaped plate 811 symmetrically fixedly connected to one end of the bottom of the support plate 6. A scraper cover 812 is fixedly connected between the two L-shaped plates 811, and the scraper cover 812 is movably sleeved on the outside of the measuring rod 4.

[0039] One end of the top of the support plate 6 is symmetrically fixedly connected to the side plate 813, and the first gear 814 is rotatably connected between the two side plates 813 through a rotating shaft. The surface of the measuring rod 4 is provided with teeth 815 that mesh with the first gear 814. One end of the rotating shaft of the first gear 814 passes through the side plate 813 and is fixedly connected to the active bevel gear 816. The interior of the support plate 6 is rotatably connected to the rotating rod 817. The top end of the rotating rod 817 extends to the outside of the support plate 6 and is fixedly connected to the driven bevel gear 818 that meshes with the active bevel gear 816. The bottom end of the support plate 6 is symmetrically fixedly connected to the arc ring 819. The arc-shaped rings 819 are connected to a common circular ring 820 for rotation. A first gear ring 821 is provided at one end of the top of the circular ring 820. The bottom end of the rotating rod 817 extends to the bottom of the support plate 6 and is fixedly connected to a second gear 822 that meshes with the first gear ring 821. A second electric telescopic rod 823 is symmetrically installed at one end of the bottom of the circular ring 820. A scraper 824 for use with the scraper cover 812 is provided on the opposite side of the two second electric telescopic rods 823. The two scrapers 824 are composed of a ring fixedly sleeved on the outside of the two electric telescopic rods and a scraper fixedly connected between the two rings.

[0040] The brushing mechanism 83 includes a mounting ring 831 fixedly connected to one end of the bottom of the support plate 6, the interior of the mounting ring 831 is rotatably connected to a second gear ring 832, the bottom of the second gear ring 832 is fixedly connected to an arc-shaped brush 833 used in conjunction with the measuring rod 4, the top end of the support plate 6 is fixedly connected to a guide frame 834, and the outer movably sleeve of the guide frame 834 is provided with a square frame 835, the outer portion of the first gear 814 rotating shaft is fixedly sleeved with an incomplete gear 836, and the top of the inner wall of the square frame 835 is fixedly connected to the inner wall of the square frame 835. A plurality of tooth grooves 837 meshing with the incomplete gear 836 are evenly arranged at one end of the upper portion and one end of the bottom, respectively. A right-angle plate 838 is fixedly connected to the top of the support plate 6. The inner rotation of the right-angle plate 838 is connected to the third gear 839. A tooth plate 840 meshing with the third gear 839 is fixedly connected to the side of the square frame 835 away from the side plate 813. The bottom end of the axle of the third gear 839 extends to the bottom of the support plate 6 and is fixedly connected to the fourth gear 841 meshing with the second gear ring 832.

[0041] A U-shaped frame 842 is fixedly connected to one end of the bottom of the support plate 6. A round brush 843 is movably sleeved on the outside of the U-shaped frame 842 for use with the teeth 815 on the surface of the measuring rod 4. A round pin 844 is fixedly connected to one end of the bottom of the second gear ring 832. A sliding groove 845 for use with the round pin 844 is formed at one end of the bottom of the mounting ring 831. A hollow frame 846 for use with the round pin 844 is fixedly connected to the side of the mounting ring 831 away from the round brush 843. The bottom point of the round pin 844 extends into the interior of the hollow frame 846.

[0042] The side section of the guide frame 834 is n-shaped;

[0043] The scraper cover 812 is in the shape of an inverted funnel, and the scraper cover 812 fits tightly with the measuring rod 4;

[0044] After the measurement is completed, the measuring rod 4 is pulled out of the mud and water can be flushed onto the surface of the measuring rod 4 using a pumping device to flush the mud on the surface of the measuring rod 4 with water. At the same time, the scraper cover 812 can scrape off the mud on the surface of the measuring rod 4, thus achieving a preliminary cleaning of the mud on the surface of the measuring rod 4.

[0045] At the same time, the measuring rod 4 drives the first gear 814 to rotate through the meshing action between the multiple teeth 815 on the surface and the first gear 814, drives the active bevel gear 816 to rotate through the wheel shaft of the first gear 814, drives the rotating rod 817 to rotate through the meshing action between the active bevel gear 816 and the driven bevel gear 818, drives the second gear 822 to rotate through the rotating rod 817, and drives the first gear ring 821 to rotate inside the two arc rings 819 through the meshing action between the second gear 822 and the first gear ring 821, so that the first gear ring 821 drives the two second electric telescopic rods 823 to rotate synchronously through the circular ring 820, so that the two electric telescopic rods simultaneously drive the two scrapers 824 to rotate inside the scraper cover 812, so that in the process of the measuring rod 4 moving upward, the silt on the surface of the measuring rod 4 and the inside of the scraper cover 812 is scraped off, thereby achieving secondary cleaning of the silt on the surface of the measuring rod 4;

[0046] As the measuring rod 4 continues to move upward, the arc-shaped brush 833 and the round brush 843 can clean the silt remaining on the surface of the measuring rod 4 after the silt has been cleaned by the scraper cover 812 and the scraper blade 824.

[0047] At the same time, the first gear 814 drives the incomplete gear 836 to rotate through the wheel shaft, and the meshing action between the incomplete gear 836 and the tooth groove 837 pushes the square frame 835 to reciprocate inside the guide frame 834. The meshing action between the tooth plate 840 on one side of the square frame 835 and the third gear 839 drives the third gear 839 to reciprocate a certain angle, so that the third gear 839 drives the fourth gear 841 to reciprocate synchronously through the wheel shaft. The meshing action between the fourth gear 841 and the second gear ring 832 drives the second gear ring 832 to reciprocate synchronously, so that the second gear ring 832 drives the arc brush 833 to reciprocate synchronously on the outside of the measuring rod 4. At this time, the arc brush 833 cooperates with the water flow to improve the cleaning effect of the arc brush 833 on the measuring rod 4.

[0048] As the second gear ring 832 reciprocates, the second gear ring 832 drives the round pin 844 to reciprocate inside the slide groove 845, so that the round pin 844 moves inside the hollow frame 846 and pushes the round brush 843 to reciprocate outside the U-shaped frame 842 through the hollow frame 846, so that the round brush 843 reciprocates on one side of the teeth 815 on the surface of the measuring rod 4, thereby brushing away the silt in the gaps of the teeth 815, achieving three cleaning of the silt on the surface of the measuring rod 4, which can further improve the cleaning effect of the measuring rod 4;

[0049] The present invention is provided with a sludge cleaning device 8, which can clean the sludge on the surface of the measuring rod 4 by utilizing the cooperation between the structures while the measuring rod 4 is pulled out of the sludge. This not only effectively improves the convenience of cleaning the sludge on the surface of the measuring rod 4, but also has a good cleaning effect, and can be completed without the use of other power, which is more energy-saving and environmentally friendly.

[0050] like Figure 1-Figure 3 、 Figure 6 and Figure 7 As shown, the auxiliary water entry device 9 includes a floating plate 91 fixedly connected to one end of the bottom of the two second electric telescopic rods 823, and the cross-section of the floating plate 91 is annular. A connecting tube 92 is fixedly connected to one end of the bottom of the floating plate 91, and the connecting tube 92 is movably connected to the outside of the measuring rod 4. A plurality of paddles 93 are evenly fixedly connected to the outside of the connecting tube 92.

[0051] Before the measuring rod 4 moves down into the river channel, the two second electric telescopic rods 823 can be opened, and the auxiliary water entry device 9 can be pushed toward the river surface by the two electric telescopic rods. When the floating plate 91 moves to the river surface, the electric telescopic rods can be closed. When the measuring rod 4 moves into the river channel or moves out of the river channel, the two electric telescopic rods rotate in coordination with the above-mentioned structures, driving the floating plate 91 to rotate synchronously on the water surface, so that the floating plate 91 drives the multiple paddles 93 to rotate synchronously through the hollow tube, thereby pushing away floating objects on the water surface and preventing floating objects on the water surface from adhering to the surface of the measuring rod 4 and affecting the use of the measuring rod 4;

[0052] The present invention is provided with an auxiliary water entry device 9, which can push away floating objects on the water surface near the entry position of the measuring rod 4 when the measuring rod 4 moves into or out of the river channel, thereby preventing floating objects on the water surface from affecting the normal use of the measuring rod 4.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for detecting the thickness of silt in a water conservancy project river channel, comprising a support frame (1), characterized in that: The support frame (1) is composed of a U-shaped plate and two triangular support frames fixedly connected to one end of the bottom of the U-shaped plate. The top end of the support frame (1) is symmetrically fixedly connected to a first electric telescopic rod (2). The output ends of the two first electric telescopic rods (2) are commonly fixedly connected to the same movable plate (3), and the movable plate (3) is movably sleeved on the outside of the U-shaped plate in the support frame (1). A measuring rod (4) is provided at one end of the bottom of the movable plate (3). The measuring rod (4) and the movable plate (3) are connected through a measuring mechanism (5). The two support frames (1) in the support frame (1) are commonly fixedly connected to the same support plate (6). A through groove (7) for use with the measuring rod (4) is provided on the surface of the support plate (6). A sludge cleaning device (8) for use with the measuring rod (4) is provided at the upper and lower ends of the support plate (6). An auxiliary water entry device (9) for use with the measuring rod (4) is provided at one end of the bottom of the support plate (6). The sludge cleaning device (8) includes a scraping mechanism (81) and a scrubbing mechanism (83); the scraping mechanism (81) includes an L-shaped plate (811) symmetrically fixedly connected to one end of the bottom of the support plate (6); a scraping cover (812) is fixedly connected between the two L-shaped plates (811), and the scraping cover (812) is movably sleeved on the outside of the measuring rod (4); a side plate (813) is symmetrically fixedly connected to one end of the top of the support plate (6); a first gear (814) is rotatably connected between the two side plates (813) via a rotating shaft; a surface of the measuring rod (4) is provided with teeth (815) meshing with the first gear (814); one end of the rotating shaft of the first gear (814) passes through the side plate (813) and is fixedly connected to an active bevel gear (816); a rotating rod (817) is rotatably connected to the inside of the support plate (6); and a top end of the rotating rod (817) extends to the support plate (6) and the bottom ... ) is fixedly connected to the outside of the support plate (6) and is fixedly connected to a driven bevel gear (818) meshing with the active bevel gear (816); an arcuate ring (819) is symmetrically fixedly connected to one end of the bottom of the support plate (6); a circular ring (820) is rotatably connected between the two arcuate rings (819); a first gear ring (821) is provided at one end of the top of the circular ring (820); a bottom end of the rotating rod (817) extends to the bottom of the support plate (6) and is fixedly connected to a second gear (822) meshing with the first gear ring (821); a second electric telescopic rod (823) is symmetrically installed at one end of the bottom of the circular ring (820); a scraper plate (824) used in conjunction with the scraper cover (812) is provided on the opposite side of the two second electric telescopic rods (823); the two scraper plates (824) are composed of a collar fixedly sleeved on the outside of the two electric telescopic rods and a scraper plate fixedly connected between the two collars.

2. The device for detecting silt thickness in a water conservancy project river channel according to claim 1, characterized in that: The measuring mechanism (5) includes a fixed rod (51) symmetrically fixedly connected to one end of the bottom of the movable plate (3), the outside of the two fixed rods (51) are movably sleeved with a first spring (52), the opposite ends of the two first springs (52) are fixedly connected to a slider (53), the bottom ends of the two sliders (53) are hinged with a connecting rod (54), the ends of the two connecting rods (54) away from the slider (53) are hinged to the measuring rod (4), the inside of the movable plate (3) is slidably connected to a U-shaped frame (55), and the U-shaped frame (55) is arranged between the two fixed rods (51), and two second springs (56) are fixedly connected between the U-shaped frame (55) and the measuring rod (4), and a pressure sensor (57) is installed at one end of the top of the movable plate (3), and the detection end of the pressure sensor (57) is arranged between the U-shaped frames (55) and extends to the bottom end of the movable plate (3).

3. The device for detecting silt thickness in a water conservancy project river channel according to claim 1, characterized in that: The brushing mechanism (83) includes a mounting ring (831) fixedly connected to one end of the bottom of the support plate (6), the mounting ring (831) is rotatably connected to a second gear ring (832), the bottom of the second gear ring (832) is fixedly connected to an arc-shaped brush (833) used in conjunction with the measuring rod (4), the top end of the support plate (6) is fixedly connected to a guide frame (834), and the outer movably sleeve of the guide frame (834) is connected to a square frame (835), the outer portion of the rotating shaft of the first gear (814) is fixedly sleeved with an incomplete gear (836), and the inner wall of the square frame (835) is fixedly sleeved. A plurality of tooth grooves (837) meshing with the incomplete gear (836) are evenly arranged at one end of the top and one end of the bottom, respectively. A right-angle plate (838) is fixedly connected to the top of the support plate (6), and a third gear (839) is rotatably connected inside the right-angle plate (838). A tooth plate (840) meshing with the third gear (839) is fixedly connected to the side of the square frame (835) away from the side plate (813). The bottom end of the axle of the third gear (839) extends to the bottom of the support plate (6) and is fixedly connected to a fourth gear (841) meshing with the second gear ring (832).

4. The device for detecting silt thickness in a water conservancy project river channel according to claim 3, characterized in that: A U-shaped frame (842) is fixedly connected to one end of the bottom of the support plate (6), a round brush (843) is movably sleeved on the outside of the U-shaped frame (842) for use with the teeth (815) on the surface of the measuring rod (4), a round pin (844) is fixedly connected to one end of the bottom of the second gear ring (832), a slide groove (845) for use with the round pin (844) is provided at one end of the bottom of the mounting ring (831), a hollow frame (846) for use with the round pin (844) is fixedly connected to one side of the U-shaped frame (842) away from the round brush (843), and a bottom point of the round pin (844) extends to the inside of the hollow frame (846).

5. The device for detecting silt thickness in a water conservancy project river channel according to claim 1, characterized in that: The auxiliary water entry device (9) comprises a floating plate (91) fixedly connected to one end of the bottom of the two second electric telescopic rods (823), and the cross-sectional shape of the floating plate (91) is annular. A connecting pipe (92) is fixedly connected to one end of the bottom of the floating plate (91), and the connecting pipe (92) is movably sleeved on the outside of the measuring rod (4). A plurality of dial plates (93) are evenly fixedly connected to the outside of the connecting pipe (92).

6. The device for detecting silt thickness in a water conservancy project river channel according to claim 3, characterized in that: The side section of the guide frame (834) is n-shaped.

7. The device for detecting silt thickness in a water conservancy project river channel according to claim 1, characterized in that: The scraper cover (812) is shaped like an inverted funnel, and the scraper cover (812) fits tightly with the measuring rod (4).

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