An online measurement device and method for river sediment content

Abstract

This invention discloses an online measurement device and method for river sediment content, relating to the field of river sediment content measurement technology. The invention includes an outer frame, with a top frame fixedly installed at the top. An inner frame is fixedly installed on the inner wall of the outer frame. A drying mechanism is provided in the top frame. A filter tilting and feeding mechanism is provided on the top side of the inner frame near the drying mechanism. A first weighing and feeding mechanism is provided on the other side of the top of the inner frame. A screening and distributing mechanism is provided on the bottom side of the inner frame near the first weighing and feeding mechanism. A second weighing and feeding mechanism is provided directly below the screening and distributing mechanism. A driving mechanism is provided on the top side of the inner frame near the filter tilting and feeding mechanism. By setting up the filter tilting and feeding mechanism, the drying mechanism, and the first weighing and feeding mechanism, this invention allows sediment particles filtered in the filter frame to be first transferred to the drying mechanism for drying via the filter tilting and feeding mechanism, and then transferred to the first weighing and feeding mechanism.

Description

Technical Field

[0001] This invention relates to the field of river sediment content measurement technology, specifically to an online river sediment content measurement device and method. Background Technology

[0002] River sediment refers to the rock and soil particles carried by river water. Sediment transport is an important hydrological phenomenon in rivers, which has a significant impact on river changes (see Riverbed Evolution). Sediment is classified into bedload and suspended sediment according to its transport characteristics. Traditionally, river sediment content is mainly calculated by manually sampling river water in a fixed-volume container, filtering the sediment with filter paper, drying the dried sediment particles, and weighing them. The river sediment content is then calculated based on the volume of the water container and the weight of the sediment particles.

[0003] River sediment content testing needs to be conducted in the field. The external environment makes it inconvenient to directly filter and dry the collected water. The process is cumbersome and inefficient. Furthermore, during the filtration process, fine sediment adheres to the surface of the filter screen and is difficult to remove, which affects the sediment content calculation. Traditional methods can only calculate the river sediment content, but lack the ability to calculate the sediment particle size distribution in a more detailed way. To address the above problems, the inventors have proposed an online river sediment content measurement device and method to solve these issues. Summary of the Invention

[0004] To address the issues of fine sediment particles adhering to the filter screen surface, more precise calculation of sediment particle size distribution, and improved work efficiency, the present invention aims to provide an online measurement device and method for river sediment content.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an online measurement device for river sediment content, comprising an outer frame, a top frame fixedly installed at the top of the outer frame, an inner frame fixedly installed on the inner wall of the outer frame, a drying mechanism provided in the top frame, a filter tilting and feeding mechanism provided on the top of the inner frame near the drying mechanism, a first weighing and feeding mechanism provided on the other side of the top of the inner frame, a screening and distributing mechanism provided on the bottom of the inner frame near the first weighing and feeding mechanism, a second weighing and feeding mechanism provided directly below the screening and distributing mechanism, and a driving mechanism provided on the top of the inner frame near the filter tilting and feeding mechanism.

[0006] Preferably, the filter flipping and feeding mechanism includes a fixed frame, which is fixedly installed on the top of the inner frame. A rotating frame is rotatably installed on the top of the fixed frame and is rotatably connected to the top of the outer frame. A first rotating shaft is fixedly installed in the middle of the inner wall of the rotating frame and passes through the fixed frame. The first rotating shaft is rotatably connected to the inner frame. Four flipping frames arranged in a circular array are rotatably installed on the rotating frame. A guide block is fixedly installed at the end of the flipping frame. A guide bolt is fixedly installed on the inner side of the guide block and is symmetrically distributed. The guide bolt is slidably connected to the fixed frame. A filter frame is provided inside the flipping frame. A plurality of springs arranged in a circular array are fixedly installed on the inner wall of the flipping frame and are fixedly connected to the outer wall of the filter frame. A first drive motor is fixedly installed on the outer wall of the flipping frame away from the guide block. A first rotating rod is fixedly installed on the drive end of the first drive motor and is rotatably connected to the filter frame. A guide groove is opened on the fixed frame and a triangular plate is fixedly installed on the inner wall of the fixed frame near the guide groove.

[0007] Preferably, the driving mechanism includes a driving fixing frame, which is fixedly installed on the top of the built-in frame. A first driving shaft is rotatably mounted on the driving fixing frame, and a half gear is fixedly mounted on the outer wall of the first driving shaft. A second driving shaft is rotatably mounted on the side of the driving fixing frame near the first driving shaft, and a first rotating gear is fixedly mounted on the outer wall of the second driving shaft, with the first rotating gear and the half gear meshing together. A third driving shaft is rotatably mounted on the side of the driving fixing frame away from the second driving shaft, and a second rotating gear is fixedly mounted on the outer wall of the third driving shaft. The drive shaft has a moving gear, and the second rotating gear and the half gear are meshed together. A first bevel gear is fixedly installed at the end of the second drive shaft away from the first rotating gear. A first transmission shaft is rotatably installed at the top of the built-in frame near the first bevel gear. A second bevel gear is fixedly installed on the outer wall of the first transmission shaft, and the first and second bevel gears are meshed together. A drive turntable is fixedly installed at the top of the first transmission shaft. An intermittent turntable that works with the drive turntable is fixedly installed on the outer wall of the first rotating shaft, and the drive turntable and the intermittent turntable are slidably connected.

[0008] Preferably, the drying mechanism includes a drying frame, which is fixedly installed on a top frame. A first fixed frame is fixedly installed on the inner wall of the drying frame, and an electric heating resistance wire is fixedly installed on the first fixed frame. A second fixed frame is symmetrically distributed above the first fixed frame and is fixedly connected to the drying frame. A second rotating shaft is rotatably installed in the middle of the second fixed frame, and a fan blade is fixedly installed at the bottom end of the second rotating shaft. A second drive motor is fixedly installed on the top of the top frame away from the second rotating shaft, and the second drive motor and the second rotating shaft are connected by a belt pulley transmission group.

[0009] Preferably, the first weighing and unloading mechanism includes a weighing frame, which is fixedly installed on the top of the built-in frame. A guide frame is provided on the side of the weighing frame near the drive fixed frame, and the guide frame and the drive fixed frame are fixedly connected. A push plate that works with the drive fixed frame is slidably installed on the weighing frame. A push rod is fixedly installed on the outer side of the push plate and is slidably connected to the weighing frame. A fixing block is fixedly installed on the bottom of the inner wall of the outer frame near the push rod. A rotating shaft is rotatably installed on the fixing block. A rotating rod is fixedly installed on the end of the rotating shaft near the push rod. A swing rod is rotatably installed on the bottom of the inner wall of the outer frame near the rotating rod, and the end of the rotating rod is slidably connected to the swing rod. The top of the swing rod is slidably connected to the push rod.

[0010] Preferably, the screening and distributing mechanism includes a screening frame, which is movably installed at the bottom end of the built-in frame near the first weighing and discharging mechanism. A first screening inner frame is fixedly installed on the inner wall of the screening frame, and a second screening inner frame is fixedly installed on the inner wall of the first screening inner frame. A connecting plate is fixedly installed at the center of the outer wall of the screening frame away from the driving mechanism. A first rotating shaft is rotatably installed on the built-in frame near the connecting plate. A rotating disk is fixedly installed at the top of the first rotating shaft, and the rotating disk is fixedly connected to the connecting plate. A third driving motor is fixedly installed on the built-in frame near the first rotating shaft, and the third driving motor and the first rotating shaft are connected via a belt pulley transmission group. Symmetrically distributed swaying connecting rods are fixedly and rotatably installed on the outer wall of the screening frame away from the connecting plate, and the top of the swaying connecting rods is rotatably connected to the bottom end of the built-in frame. Four symmetrically distributed first fixing plates are fixedly installed at the bottom end of the built-in frame near the screening frame. Connecting blocks are rotatably installed on the first fixing plates, and the tops of the connecting blocks are rotatably connected to the outer wall of the screening frame.

[0011] Preferably, the second weighing and feeding mechanism includes a second weighing frame, of which three are evenly distributed. All three second weighing frames are fixedly installed on the bottom of the inner wall of the outer frame near the screening and distributing mechanism. A second push plate is slidably installed on each of the three second weighing frames. A second rotating shaft is rotatably installed on the inner frame near the second weighing frame. A third rotating rod is fixedly installed at the bottom of the second rotating shaft. An arc-shaped frame is slidably installed on the bottom of the inner wall of the outer frame near the third rotating rod, and the third rotating rod and the arc-shaped frame are slidably connected. A second fixing plate is fixedly installed on the arc-shaped frame near the second weighing frame. A second push rod, which cooperates with the second push plate, is fixedly installed on the outer side of the second fixing plate, and the second push rod and the second push plate are fixedly connected. A collection frame, which cooperates with the second weighing frame, is slidably installed on the bottom of the inner wall of the outer frame.

[0012] Preferably, a third bevel gear is fixedly installed on the end of the third drive shaft near the second rotating gear, a second transmission shaft is rotatably installed on the top of the built-in frame near the third bevel gear, and a fourth bevel gear is fixedly installed on the end of the second transmission shaft near the third bevel gear. The third and fourth bevel gears are meshed and connected. The second transmission shaft and the third rotating shaft are connected by a first synchronous pulley transmission group.

[0013] Preferably, a fifth bevel gear is fixedly installed at the end of the third drive shaft away from the third bevel gear, a third transmission shaft is rotatably installed on the side of the inner frame near the fifth bevel gear, a sixth bevel gear is fixedly installed at the top of the third transmission shaft, and the fifth and sixth bevel gears are meshed together, the third transmission shaft and the second rotating shaft are connected by a second synchronous pulley transmission shaft, and a fourth drive motor is fixedly installed at the top of the inner frame near the second drive shaft, and the fourth drive motor and the first drive shaft are connected by a belt pulley transmission group.

[0014] A method for online measurement of river sediment content includes the following steps:

[0015] S1: Use a fixed-volume water sampler to sample the water body of the river to be tested;

[0016] S2: Pour the sampled water into the inlet and activate the detection device.

[0017] S3: The detection device dries the filtered sediment particles. After drying and evaporating the moisture, the particles are discharged into a weighing device to weigh the entire sediment. The sediment content of the river is calculated by the total sediment weight and the water volume.

[0018] S4: Screen the sediment particles into three grades: coarse, medium, and fine, and weigh them separately. Calculate the particle size distribution ratio of the river sediment based on the weight of each of the three grades.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention, by setting up a filter flipping and feeding mechanism, a drying mechanism, and a first weighing and feeding mechanism, allows the mud and sand particles filtered in the filter frame to be first transferred to the drying mechanism for drying and then transferred to the first weighing and feeding mechanism. During the transfer process, the dried mud and sand particles in the filter frame are transferred to the first weighing and feeding mechanism for weighing through flipping and vibration. By setting up a screening and separating mechanism and a second weighing and feeding mechanism, the weighed mud and sand particles are screened and separated by the screening and separating mechanism and then transferred to the second weighing and feeding mechanism for weighing. Through the above operations, the fine mud and sand particles attached to the filter are dislodged by flipping and vibration during the filtration process, reducing the weighing error. After the mud and sand particles are screened and weighed separately, the proportion of mud and sand of various volumes in the mud and sand particles can be calculated, further improving the work efficiency.

[0021] 2. This invention sets up a filter flipping and feeding mechanism and a driving mechanism, so that the driving mechanism drives the flipping and feeding mechanism to rotate intermittently. The flipping and feeding mechanism transfers the filtered mud and sand particles through the intermittent mechanism. During the transfer process, the flipping frame flips under the guidance of the guide groove and the triangular plate by the guide bolt on the guide block. The flipping frame flips and drives the filter frame to flip synchronously. During the flipping process, the filter frame vibrates in the flipping frame under the coordination of the first drive motor, the first rotating rod and several springs. Through the above operation, the effect of causing the attached mud and sand particles to fall off by vibration while flipping and feeding is achieved.

[0022] 3. This invention uses multiple flip frames. Under the drive of the drive mechanism, the flip frames rotate intermittently. During this process, the drive mechanism drives the first weighing and feeding mechanism and the second weighing and feeding mechanism to operate synchronously. Through the above operation, the sediment content in multiple water bodies can be detected, improving work efficiency and improving the accuracy of detection through multiple sets of experimental data. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the front of the present invention.

[0026] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0027] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0028] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point C.

[0029] Figure 6 This is a schematic diagram of the filter flipping and feeding mechanism in this invention.

[0030] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point D.

[0031] Figure 8 This is a schematic diagram of the screening and sorting mechanism in this invention.

[0032] Figure 9 This is a schematic diagram of the drive mechanism in this invention.

[0033] Figure 10 This is a schematic diagram of the second weighing and unloading mechanism in this invention.

[0034] Figure 11 This is a schematic diagram of the guide groove and triangular plate in this invention.

[0035] Figure 12 This is a schematic diagram of the internal structure of the outer frame in this invention.

[0036] In the diagram: 1. Outer frame; 2. Top frame; 3. Internal frame; 4. Filter tilting and feeding mechanism; 401. Fixed frame; 402. Rotating frame; 403. Rotating shaft No. 1; 404. Tilting frame; 405. Guide block; 406. Filter frame; 407. Spring; 408. Drive motor No. 1; 409. Rotating rod No. 1; 410. Guide bolt; 411. Guide groove; 412. Triangular plate; 5. Drying mechanism; 501. Drying frame; 502. Fixed frame No. 1; 503. Heating wire; 504. 505. Fixed frame No. 2; 506. Rotating shaft No. 2; 507. Drive motor No. 2; 6. First weighing and unloading mechanism; 601. Weighing frame No. 1; 602. Guide frame; 603. Push rod No. 1; 604. Push plate No. 1; 605. Fixed block; 606. Rotating shaft No. 3; 607. Rotating rod No. 2; 608. Swing rod; 7. Screening and distributing mechanism; 701. Screening frame; 702. Screening inner frame No. 1; 703. Screening inner frame No. 2; 704. Connecting plate; 705. 706. Rotating shaft; 707. Rotating disk; 708. Drive motor No. 3; 709. Shaking connecting rod; 710. Fixed plate No. 1; 8. Connecting block; 8. Second weighing and unloading mechanism; 801. Weighing frame No. 2; 802. Push plate No. 2; 803. Second rotating shaft; 804. Rotating rod No. 3; 805. Arc frame; 806. Fixed plate No. 2; 807. Push rod No. 2; 808. Collection frame; 9. Drive mechanism; 901. Drive fixed frame; 902. Drive shaft No. 1; 903. Half Gears; 904, Drive Shaft No. 2; 905, Rotating Gear No. 1; 906, Drive Shaft No. 3; 907, Rotating Gear No. 2; 908, Bevel Gear No. 1; 909, Transmission Shaft No. 1; 910, Bevel Gear No. 2; 911, Drive Turntable; 912, Intermittent Turntable; 913, Bevel Gear No. 3; 914, Transmission Shaft No. 2; 915, Bevel Gear No. 4; 916, Bevel Gear No. 5; 917, Transmission Shaft No. 3; 918, Bevel Gear No. 6; 919, Drive Motor No. 4. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example: Figure 1-12As shown, the present invention provides a technical solution: an online measurement device for river sediment content, including an outer frame 1, a top frame 2 fixedly installed at the top of the outer frame 1, an inner frame 3 fixedly installed on the inner wall of the outer frame 1, a drying mechanism 5 provided in the top frame 2, a filter flipping and feeding mechanism 4 provided on the top of the inner frame 3 near the drying mechanism 5, a first weighing and feeding mechanism 6 provided on the other side of the top of the inner frame 3, a screening and distributing mechanism 7 provided on the bottom of the inner frame 3 near the first weighing and feeding mechanism 6, a second weighing and feeding mechanism 8 provided directly below the screening and distributing mechanism 7, and a driving mechanism 9 provided on the top of the inner frame 3 near the filter flipping and feeding mechanism 4.

[0039] The filter tilting and feeding mechanism 4 includes a fixed frame 401, which is fixedly installed on the top of the inner frame 3. A rotating frame 402 is rotatably installed on the top of the fixed frame 401, and the rotating frame 402 is rotatably connected to the top of the outer frame 1. A first rotating shaft 403 is fixedly installed in the middle of the inner wall of the rotating frame 402, and the first rotating shaft 403 passes through the fixed frame 401 and is rotatably connected to the inner frame 3. Four tilting frames 404 arranged in a circular array are rotatably installed on the rotating frame 402. A guide block 405 is fixedly installed at the end of the tilting frame 404. A guide bolt 410 is symmetrically distributed on the inner side of the guide block 405, and the guide bolt 410 is fixedly installed on the fixed frame 402. The fixed frame 401 is slidably connected, and the inner side of the flip frame 404 is provided with a filter frame 406. Several springs 407 arranged in a circular array are fixedly installed on the inner wall of the flip frame 404, and the other end of the springs 407 is fixedly connected to the outer wall of the filter frame 406. A first drive motor 408 is fixedly installed on the outer wall of the flip frame 404 away from the guide block 405. A first rotating rod 409 is fixedly installed on the driving end of the first drive motor 408, and the other end of the first rotating rod 409 is rotatably connected to the filter frame 406. The fixed frame 401 is provided with symmetrically distributed guide grooves 411. A triangular plate 412 is fixedly installed on the inner wall of the fixed frame 401 near the guide grooves 411.

[0040] By adopting the above technical solution, the first rotating shaft 403 drives the rotating frame 402 to rotate. During the rotation, the rotating frame 402 drives the flipping frame 404 to flip through the guide groove 411, the triangular plate 412, the guide block 405 and the guide bolt 410.

[0041] The drive mechanism 9 includes a drive fixing frame 901, which is fixedly installed on the top of the built-in frame 3. A first drive shaft 902 is rotatably mounted on the drive fixing frame 901. A half gear 903 is fixedly mounted on the outer wall of the first drive shaft 902. A second drive shaft 904 is rotatably mounted on the side of the drive fixing frame 901 near the first drive shaft 903. A first rotating gear 905 is fixedly mounted on the outer wall of the second drive shaft 904, and the first rotating gear 905 and the half gear 903 are meshed together. A third drive shaft 906 is rotatably mounted on the side of the drive fixing frame 901 away from the second drive shaft 904, and a second rotating gear 907 is fixedly mounted on the outer wall of the third drive shaft 906. Furthermore, the second rotating gear 907 and the half gear 903 are meshed and connected. The end of the second drive shaft 904 away from the first rotating gear 905 is fixedly installed with a first bevel gear 908. The top of the internal frame 3 is rotatably installed with a first transmission shaft 909 near the first bevel gear 908. The second bevel gear 910 is fixedly installed on the outer wall of the first transmission shaft 909, and the first bevel gear 908 and the second bevel gear 910 are meshed and connected. The top of the first transmission shaft 909 is fixedly installed with a drive turntable 911. The outer wall of the first rotating shaft 403 is fixedly installed with an intermittent turntable 912 that works with the drive turntable 911, and the drive turntable 911 and the intermittent turntable 912 are slidably connected.

[0042] By adopting the above technical solution, the first drive shaft 902 drives the second drive shaft 904 and the third drive shaft 906 to rotate through the half gear 903, the first rotating gear 905 and the second rotating gear 907 respectively.

[0043] The drying mechanism 5 includes a drying frame 501, which is fixedly installed on the top frame 2. A first fixed frame 502 is fixedly installed on the inner wall of the drying frame 501. An electric heating resistance wire 503 is fixedly installed on the first fixed frame 502. A second fixed frame 504 is symmetrically distributed above the first fixed frame 502 and is fixedly connected to the drying frame 501. A second rotating shaft 505 is rotatably installed in the middle of the second fixed frame 504. A fan blade 506 is fixedly installed at the bottom end of the second rotating shaft 505. A second drive motor 507 is fixedly installed on the top of the top frame 2 away from the second rotating shaft 505. The second drive motor 507 and the second rotating shaft 505 are connected by a belt pulley transmission group.

[0044] By adopting the above technical solution, the No. 2 drive motor 507 drives the No. 2 rotating shaft 505 to rotate through the belt pulley transmission group.

[0045] The first weighing and unloading mechanism 6 includes a first weighing frame 601, which is fixedly installed on the top of the built-in frame 3. A guide frame 602 is provided on the side of the first weighing frame 601 near the drive fixing frame 901, and the guide frame 602 is fixedly connected to the drive fixing frame 901. A first push plate 604 that cooperates with the drive fixing frame 901 is slidably installed on the first weighing frame 601. A first push rod 603 is fixedly installed on the outer side of the first push plate 604, and the first push rod 603 and the first weighing frame 601 are connected. A sliding connection is provided. A fixing block 605 is fixedly installed on the bottom of the inner wall of the outer frame 1 near the first push rod 603. A third rotating shaft 606 is rotatably installed on the fixing block 605. A second rotating rod 607 is fixedly installed on the end of the third rotating shaft 606 near the first push rod 603. A swing rod 608 is rotatably installed on the bottom of the inner wall of the outer frame 1 near the second rotating rod 607. The end of the second rotating rod 607 and the swing rod 608 are slidably connected. The top of the swing rod 608 is slidably connected to the first push rod 603.

[0046] By adopting the above technical solution, the No. 3 rotating shaft 606 drives the No. 1 push rod 603 to reciprocate through the No. 2 rotating rod 607 and the swing rod 608.

[0047] The screening and material distribution mechanism 7 includes a screening frame 701, which is movably installed on the bottom end of the built-in frame 3 near the first weighing and feeding mechanism 6. A first screening inner frame 702 is fixedly installed on the inner wall of the screening frame 701, and a second screening inner frame 703 is fixedly installed on the inner wall of the first screening inner frame 702. A connecting plate 704 is fixedly installed on the middle of the outer wall of the screening frame 701 on the side away from the drive mechanism 9. A first rotating shaft 705 is rotatably installed on the side of the built-in frame 3 near the connecting plate 704. A rotating disk 706 is fixedly installed at the top of the first rotating shaft 705, and the rotating disk 706 is fixedly connected to the connecting plate 704. A third drive motor 707 is fixedly installed on one side of the first rotating shaft 705, and the third drive motor 707 and the first rotating shaft 705 are connected by a belt pulley transmission group. A symmetrically distributed swaying connecting rod 708 is fixedly and rotatably installed on the outer wall of the screening frame 701 away from the connecting plate 704, and the top of the swaying connecting rod 708 is rotatably connected to the bottom of the built-in frame 3. Four symmetrically distributed first fixing plates 709 are fixedly installed on the bottom of the built-in frame 3 near the screening frame 701. A connecting block 710 is rotatably installed on the first fixing plate 709, and the top of the connecting block 710 is rotatably connected to the outer wall of the screening frame 701.

[0048] By adopting the above technical solution, the first rotating shaft 705 drives the screening frame 701 to vibrate through the rotating disk 706 and the connecting plate 704.

[0049] The second weighing and feeding mechanism 8 includes a second weighing frame 801, of which three are evenly distributed. All three second weighing frames 801 are fixedly installed on the bottom of the inner wall of the outer frame 1 near the screening and distributing mechanism 7. A second push plate 802 is slidably installed on each of the three second weighing frames 801. A second rotating shaft 803 is rotatably installed on the inner frame 3 near the second weighing frame 801. A third rotating rod 804 is fixedly installed at the bottom of the second rotating shaft 803. The third rotating rod 804 is located near the bottom of the inner wall of the outer frame 1. An arc-shaped frame 805 is slidably installed on one side of the rotating rod 804, and the third rotating rod 804 and the arc-shaped frame 805 are slidably connected. A second fixing plate 806 is fixedly installed on the side of the arc-shaped frame 805 near the second weighing frame 801. A second push rod 807 that works with the second push plate 802 is fixedly installed on the outside of the second fixing plate 806, and the second push rod 807 and the second push plate 802 are fixedly connected. A collection frame 808 that works with the second weighing frame 801 is slidably installed at the bottom of the inner wall of the outer frame 1.

[0050] By adopting the above technical solution, the second rotating shaft 803 drives the arc frame 805 to reciprocate through the third rotating rod 804.

[0051] A third bevel gear 913 is fixedly installed at one end of the third drive shaft 906 near the second rotating gear 907. A second transmission shaft 914 is rotatably installed at the top of the internal frame 3 near the third bevel gear 913. A fourth bevel gear 915 is fixedly installed at one end of the second transmission shaft 914 near the third bevel gear 913. The third bevel gear 913 and the fourth bevel gear 915 are meshed together. The second transmission shaft 914 and the third rotating shaft 606 are connected by a first synchronous pulley transmission group.

[0052] By adopting the above technical solution, the No. 2 drive shaft 914 drives the No. 3 rotating shaft 606 to rotate through the No. 1 synchronous wheel transmission group.

[0053] A fifth bevel gear 916 is fixedly installed at the end of the third drive shaft 906 away from the third bevel gear 913. A third transmission shaft 917 is rotatably installed on the side of the built-in frame 3 near the fifth bevel gear 916. A sixth bevel gear 918 is fixedly installed at the top of the third transmission shaft 917, and the fifth bevel gear 916 and the sixth bevel gear 918 are meshed together. The third transmission shaft 917 and the second rotating shaft 803 are connected by a second synchronous pulley transmission shaft. A fourth drive motor 919 is fixedly installed on the top of the built-in frame 3 near the second drive shaft 904, and the fourth drive motor 919 and the first drive shaft 902 are connected by a belt pulley transmission group.

[0054] By adopting the above technical solution, the No. 4 drive motor 919 drives the No. 1 drive shaft 902 to rotate through the synchronous wheel transmission group.

[0055] A method for online measurement of river sediment content includes the following steps:

[0056] S1: Use a fixed-volume water sampler to sample the water body of the river to be tested;

[0057] S2: Pour the sampled water into the inlet and activate the detection device.

[0058] S3: The detection device dries the filtered sediment particles. After drying and evaporating the moisture, the particles are discharged into a weighing device to weigh the entire sediment. The sediment content of the river is calculated by the total sediment weight and the water volume.

[0059] S4: Screen the sediment particles into three grades: coarse, medium, and fine, and weigh them separately. Calculate the sediment particle size distribution ratio of the river based on the weight of each of the three grades.

[0060] By adopting the above technical solution, the device can detect the sediment content and particle size distribution of river sediment.

[0061] Working principle: First, a fixed-volume container is used to sample the river water. After sampling, the sampled water is poured into the inlet and fed into the filter frame 406. The sediment particles in the river are intercepted by the filter screen in the filter frame 406. The sampled water passes through the filter screen and falls into the drain pipe, where it is discharged. After filtration, the fourth drive motor 919 is activated. The drive end of the fourth drive motor 919 drives the first drive shaft 902 to rotate clockwise via a belt pulley transmission group. The clockwise rotation of the first drive shaft 902 drives the half gear 903 to mesh with the first rotating gear 905. The first rotating gear 905 and the half gear 903 have the same number of teeth. The half gear 903 drives the second drive shaft 90 through the first rotating gear 905. 4. Rotating counterclockwise one revolution causes the second drive shaft 904 to rotate counterclockwise one revolution, which in turn drives the first transmission shaft 909 to rotate clockwise one revolution via the first bevel gear 908 and the second bevel gear 910. The first transmission shaft 909 then drives the first rotating shaft 403 to rotate counterclockwise one-quarter revolution via the drive turntable 911 and the intermittent turntable 912. The first rotating shaft 403 then drives the tilting frame 404 to rotate counterclockwise one-quarter revolution via the rotating frame 402, causing the rotating frame 402 containing mud and sand particles to rotate directly below the drying frame 501. Simultaneously, the heating element 503 is activated to heat the air, and the second drive motor 507 is activated. The drive end of the second drive motor 507 drives the second rotating shaft 505 to rotate via the belt pulley transmission group. The rotation of the second rotating shaft 505 drives... The fan blade 506 rotates, blowing the air heated by the heating wire 503 onto the filtered sand particles. After the sand particles are dried, the fourth drive motor 919 rotates one revolution, causing the rotating frame 402 to rotate one-quarter revolution counterclockwise. The rotating frame 402 drives the flipping frame 404 to move under the guidance of the guide bolt 410 on the guide block 405. When the guide block 405 passes through the guide groove 411, the guide bolt 410 closest to the guide groove 411 moves to the top of the guide groove 411. At this time, the guide block 405 tilts, causing the flipping frame 404 to flip. Another guide bolt 410 on the guide block 405 moves along the bottom of the triangular plate 412. When the guide bolt 410 moves along the triangular plate 412, After the triangular plate 412 is removed, the guide bolt 410 at the top of the guide groove 411 continues to move along the guide groove 411, causing the guide bolt 410 to separate from the guide groove 411. During this process, the two guide bolts 410 exchange positions, thereby causing the flipping frame 404 to flip half a turn. The flipping frame 404 flips and causes the filter frame 406 to flip synchronously. The flipping of the filter frame 406 pours the dried mud and sand particles into the guide frame 602. During the flipping of the filter frame 406, the first drive motor 408 is turned on simultaneously. The drive end of the first drive motor 408 rotates and causes the first rotating rod 409 to rotate. The rotation of the first rotating rod 409 causes the filter frame 406 to swing under the restriction of the spring 407. The swinging of the filter frame 406 can cause the adhering mud and sand particles to fall off.

[0062] The sediment particles falling into the guide frame 602 slide down into the first weighing frame 601. A gravity sensor in the first weighing frame 601 weighs the dried sediment particles. The sediment content of the river can be calculated from the weight of the sediment particles and the volume of the water sample. After weighing, the fourth drive motor 919 drives the first drive shaft 902 to continue rotating, causing the half gear 903 and the second rotating gear 907 to mesh. The second rotating gear 907 is identical to the first rotating gear 905. The half gear 903, through the second rotating gear 907, drives the third drive shaft 906 to rotate counterclockwise one revolution. The No. 3 drive shaft 906 drives the No. 2 transmission shaft 914 to rotate one revolution through the No. 3 bevel gear 913 and the No. 4 bevel gear 915. The No. 2 transmission shaft 914 drives the No. 3 rotating shaft 606 to rotate one revolution through the No. 1 synchronous wheel transmission group. The No. 3 rotating shaft 606 drives the swing rod 608 to swing back and forth once through the No. 2 rotating rod 607. The swing rod 608 swings back and forth and pushes the No. 1 push rod 603 to move back and forth once. When the No. 1 push rod 603 moves forward, it pushes the mud and sand particles in the No. 1 weighing frame 601 to the inclined frame through the No. 1 push plate 604. Under the guidance of the inclined frame, they fall from the feed frame into the screening frame 701.

[0063] The control activates drive motor 707 (number three). Drive motor 707 drives the first rotating shaft 705 via a belt pulley transmission assembly. The rotation of the first rotating shaft 705, through the rotating disc 706 and connecting plate 704, causes the screening frame 701 to sway under the guidance of the swaying connecting rod 708, the first fixing plate 709, and the connecting block 710. The mud and sand particles falling into the screening frame 701 are screened by the screening mesh at the top of the first inner frame 702. Coarse sand moves along the vibration at the top of the first inner frame 702 to the corresponding coarse sand outlet at the end. The screened mud and sand particles fall into the screening mesh at the top of the second inner frame 703. Online, after being screened by the screening mesh at the top of the No. 2 inner frame 703, the medium sand vibrates along the screening mesh at the top of the No. 2 inner frame 703 to the medium sand discharge port at the end. The fine sand screened from the screening mesh at the top of the No. 2 inner frame 703 is discharged from the fine sand discharge port inside the No. 2 inner frame 703. The coarse sand, medium sand, and fine sand fall into the corresponding No. 2 weighing frame 801 from the corresponding discharge ports. The gravity sensor set in the No. 2 weighing frame 801 weighs the three types of sand particles, namely coarse sand, medium sand, and fine sand. The proportion of the three types of sand particle size distribution can be calculated from the weight of the coarse sand, medium sand, and fine sand.

[0064] After the three types of sediment are weighed, drive motor 919 continues to rotate, driving drive shaft 906 to rotate one revolution. Drive shaft 906 rotates counterclockwise once, which in turn drives transmission shaft 917 to rotate counterclockwise once via bevel gears 916 and 918. Transmission shaft 917 drives second rotating shaft 803 to rotate counterclockwise once via synchronous gear 2. Second rotating shaft 803 drives rotating rod 804 to rotate counterclockwise once. Rotating rod 804 rotates counterclockwise once, which in turn drives arc frame 8... 05 drives the three second push rods 807 to move back and forth once. During the process of the three second push rods 807 moving synchronously towards the collection frame 808, the three second push rods 807 respectively push the coarse sand, medium sand and fine sand in the corresponding second weighing frame 801 into the corresponding collection groove in the collection frame 808 for centralized collection through the corresponding second push plate 802. When the corresponding guide block 405 on the flipping frame 404 moves to another guide groove 411, the same steps as above are used to flip the frame a second time to move the flipping frame 404 to the initial position.

[0065] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An online measurement device for river sediment content, comprising an outer frame, characterized in that: A top frame is fixedly installed at the top of the outer frame, and an inner frame is fixedly installed on the inner wall of the outer frame. A drying mechanism is provided in the top frame. A filter flipping and feeding mechanism is provided on the top of the inner frame near the drying mechanism. A first weighing and feeding mechanism is provided on the other side of the top of the inner frame. A screening and distributing mechanism is provided on the bottom of the inner frame near the first weighing and feeding mechanism. A second weighing and feeding mechanism is provided directly below the screening and distributing mechanism. A driving mechanism is provided on the top of the inner frame near the filter flipping and feeding mechanism. The filter tilting and feeding mechanism includes a fixed frame, which is fixedly installed on the top of the inner frame. A rotating frame is rotatably installed on the top of the fixed frame and is rotatably connected to the top of the outer frame. A first rotating shaft is fixedly installed in the middle of the inner wall of the rotating frame and passes through the fixed frame. The first rotating shaft is rotatably connected to the inner frame. Four tilting frames arranged in a circular array are rotatably installed on the rotating frame. A guide block is fixedly installed at the end of the tilting frame. A guide bolt is symmetrically distributed and slidably connected to the fixed frame. A filter frame is provided inside the tilting frame. Several springs arranged in a circular array are fixedly installed on the inner wall of the tilting frame, and the other end of the spring is fixedly connected to the outer wall of the filter frame. A first drive motor is fixedly installed on the outer wall of the tilting frame away from the guide block. A first rotating rod is fixedly installed at the drive end of the first drive motor and is rotatably connected to the filter frame. A guide groove is symmetrically distributed on the fixed frame. A triangular plate is fixedly installed on the inner wall of the fixed frame near the guide groove. The drying mechanism includes a drying frame, which is fixedly installed on a top frame. A first fixed frame is fixedly installed on the inner wall of the drying frame, and an electric heating resistance wire is fixedly installed on the first fixed frame. A second fixed frame is symmetrically distributed above the first fixed frame and is fixedly connected to the drying frame. A second rotating shaft is rotatably installed in the middle of the second fixed frame, and a fan blade is fixedly installed at the bottom end of the second rotating shaft. A second drive motor is fixedly installed on the top of the top frame away from the second rotating shaft, and the second drive motor and the second rotating shaft are connected by a belt pulley transmission group.

2. The online river sediment content measurement device as described in claim 1, characterized in that, The driving mechanism includes a drive fixing frame, which is fixedly installed on the top of the built-in frame. A first drive shaft is rotatably mounted on the drive fixing frame, and a half gear is fixedly mounted on the outer wall of the first drive shaft. A second drive shaft is rotatably mounted on the side of the drive fixing frame closer to the first drive shaft, and a first rotating gear is fixedly mounted on the outer wall of the second drive shaft, with the first rotating gear and the half gear meshing together. A third drive shaft is rotatably mounted on the side of the drive fixing frame away from the second drive shaft, and a second rotating gear is fixedly mounted on the outer wall of the third drive shaft. The first drive shaft has a first drive shaft with a first drive shaft and a second drive shaft. The second drive shaft is fixedly mounted with a first bevel gear on the side away from the first drive shaft. The first drive shaft is rotatably mounted with a first transmission shaft on the top side of the inner frame near the first bevel gear. The first drive shaft is fixedly mounted with a second bevel gear on its outer wall, and the first and second bevel gears are meshed together. The first drive shaft is fixedly mounted with a drive turntable on its top. The first drive shaft is fixedly mounted with an intermittent turntable that works with the drive turntable on its outer wall, and the drive turntable and the intermittent turntable are slidably connected.

3. The online river sediment content measurement device as described in claim 1, characterized in that, The first weighing and unloading mechanism includes a weighing frame, which is fixedly installed on the top of the built-in frame. A guide frame is provided on the side of the weighing frame near the drive fixed frame, and the guide frame and the drive fixed frame are fixedly connected. A push plate that works with the drive fixed frame is slidably installed on the weighing frame. A push rod is fixedly installed on the outer side of the push plate, and the push rod and the weighing frame are slidably connected. A fixing block is fixedly installed on the bottom of the inner wall of the outer frame near the push rod. A rotating shaft is rotatably installed on the fixing block. A rotating rod is fixedly installed on the end of the rotating shaft near the push rod. A swing rod is rotatably installed on the bottom of the inner wall of the outer frame near the rotating rod, and the end of the rotating rod and the swing rod are slidably connected. The top of the swing rod is slidably connected to the push rod.

4. The online river sediment content measurement device as described in claim 1, characterized in that, The screening and material distribution mechanism includes a screening frame, which is movably installed at the bottom end of the built-in frame near the first weighing and feeding mechanism. A first screening inner frame is fixedly installed on the inner wall of the screening frame, and a second screening inner frame is fixedly installed on the inner wall of the first screening inner frame. A connecting plate is fixedly installed in the middle of the outer wall of the screening frame away from the driving mechanism. A first rotating shaft is rotatably installed on the built-in frame near the connecting plate. A rotating disk is fixedly installed at the top of the first rotating shaft, and the rotating disk is fixedly connected to the connecting plate. A third driving motor is fixedly installed on the built-in frame near the first rotating shaft, and the third driving motor and the first rotating shaft are connected via a belt pulley transmission group. Symmetrically distributed swaying connecting rods are fixedly and rotatably installed on the outer wall of the screening frame away from the connecting plate, and the top of the swaying connecting rods is rotatably connected to the bottom end of the built-in frame. Four symmetrically distributed first fixing plates are fixedly installed on the bottom end of the built-in frame near the screening frame. Connecting blocks are rotatably installed on the first fixing plates, and the tops of the connecting blocks are rotatably connected to the outer wall of the screening frame.

5. The online river sediment content measurement device as described in claim 1, characterized in that, The second weighing and feeding mechanism includes a second weighing frame, of which three are evenly distributed. All three second weighing frames are fixedly installed on the bottom of the inner wall of the outer frame near the screening and distributing mechanism. A second push plate is slidably installed on each of the three second weighing frames. A second rotating shaft is rotatably installed on the inner frame near the second weighing frame. A third rotating rod is fixedly installed at the bottom of the second rotating shaft. An arc-shaped frame is slidably installed on the bottom of the inner wall of the outer frame near the third rotating rod, and the third rotating rod and the arc-shaped frame are slidably connected. A second fixing plate is fixedly installed on the arc-shaped frame near the second weighing frame. A second push rod, which works in conjunction with the second push plate, is fixedly installed on the outer side of the second fixing plate, and the second push rod and the second push plate are fixedly connected. A collection frame, which works in conjunction with the second weighing frame, is slidably installed on the bottom of the inner wall of the outer frame.

6. The online river sediment content measurement device as described in claim 2, characterized in that, A bevel gear is fixedly installed on the end of the third drive shaft near the second rotating gear. A transmission shaft is rotatably installed on the top of the built-in frame near the third bevel gear. A bevel gear is fixedly installed on the end of the second transmission shaft near the third bevel gear. The third and fourth bevel gears are meshed and connected. The second transmission shaft and the third rotating shaft are connected by a synchronous pulley transmission group.

7. The online river sediment content measurement device as described in claim 2, characterized in that, A fifth bevel gear is fixedly installed at the end of the third drive shaft away from the third bevel gear. A third transmission shaft is rotatably installed on the side of the internal frame near the fifth bevel gear. A sixth bevel gear is fixedly installed at the top of the third transmission shaft, and the fifth and sixth bevel gears are meshed together. The third transmission shaft and the second rotating shaft are connected by a second synchronous pulley transmission shaft. A fourth drive motor is fixedly installed at the top of the internal frame near the second drive shaft, and the fourth drive motor and the first drive shaft are connected by a belt pulley transmission group.

8. A method for online measurement of river sediment content, characterized in that, Using an online river sediment concentration measurement device as described in any one of claims 1-7 includes the following steps: S1: Use a fixed-volume water sampler to sample the water body of the river to be tested; S2: Pour the sampled water into the inlet and activate the detection device. S3: The detection device dries the filtered sediment particles. After drying and evaporating the moisture, the particles are discharged into a weighing device to weigh the entire sediment. The sediment content of the river is calculated by the total sediment weight and the water volume. S4: Screen the sediment particles into three grades: coarse, medium, and fine, and weigh them separately. Calculate the sediment particle size distribution ratio of the river based on the weight of each of the three grades.

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