Intelligent layered fidelity bottom mud sampler

Abstract

The invention discloses an intelligent layered fidelity bottom mud sampler, and belongs to the field of hydraulic engineering, the intelligent layered fidelity bottom mud sampler comprises a sampling cylinder, the top of the sampling cylinder is rotatably connected with a stabilizing frame, the left and right ends of the stabilizing frame are both in threaded connection with screws, a cutting rod is fixed in the sampling cylinder, and the sampling cylinder and the cutting rod are jointly in sliding connection with a rectangular rod; a first transmission wheel, a screw rod and a bevel gear set are driven by a motor, so that a sampling cylinder is spirally and stably cut in, when the sampling cylinder reaches a target depth, a clamping block on the inner side of a sleeve is clamped with a clamping groove in an annular groove of the sampling cylinder under the action of a spring, a rotating ring is forced to be fixed, and the sampling cylinder and the rotating cylinder generate relative rotation. The rotating drum drives the first straight gear, the worm and the worm gear transmission chain through a bottom tooth groove, so that the rotating stand drives the rotating blades to be unfolded, the rotating blades are rotationally opened through composite transmission of the bevel gear and the straight gear, a bottom blocking face is formed, bottom mud loss in the sampling process is prevented, and it is ensured that samples are kept in an original layering state.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to an intelligent stratified, high-fidelity sediment sampler. Background Technology

[0002] In environmental science, hydraulic engineering, and geological exploration, sediment sampling is a crucial step in analyzing the physicochemical properties, pollutant distribution, and ecological effects of sediments. Traditional sediment samplers generally suffer from the following technical bottlenecks: Defects in sample fidelity: Traditional samplers lack an effective bottom sealing mechanism during the lifting process, allowing bottom sediment to easily flow out of the bottom of the cylinder due to gravity or mix with the water. Furthermore, silt adhering to the outer wall of the sampling cylinder may detach during lifting, contaminating the already collected upper-layer samples and causing "cross-contamination," thus failing to guarantee the originality and integrity of the samples.

[0003] High cleaning and maintenance costs: After sampling, traditional equipment is prone to accumulating a large amount of sludge on its outer walls and inside, requiring significant manpower and time for cleaning. If cleaning is not thorough, the residual sludge may affect the accuracy of subsequent sampling, especially when sampling continuously at multiple points, significantly increasing the risk of cross-contamination.

[0004] Therefore, a smart, stratified, high-fidelity sediment sampler is needed to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent layered, high-fidelity sediment sampler, which solves the problems mentioned in the background section.

[0006] Technical Solution: To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, an intelligent stratified and high-fidelity sediment sampler includes a sampling cylinder, a stabilizing frame rotatably connected to the top of the sampling cylinder, screws threaded to both ends of the stabilizing frame, a cutting rod fixed inside the sampling cylinder, a rectangular rod slidably connected to the sampling cylinder and the cutting rod, a transmission wheel fixed to the top of the rectangular rod, a sleeve fitted on the outer surface of the sampling cylinder, a horizontal frame symmetrically fixed on the outer surface of the sleeve, a vertical frame fixed at the end of the horizontal frame away from the sleeve, a top cover fixed to the top of the two vertical frames, and a motor fixed at the center of the upper surface of the top cover, the motor outputting... The bottom end of the shaft extends through to the lower surface of the top cover and is fixedly connected to the first transmission wheel. The top of the outer surface of the screw is fixed with a second transmission wheel, and both second transmission wheels are in contact with the outer surface of the first transmission wheel. A bracket is fixed to the upper surface of the crossbar, and a crank is rotatably connected inside the bracket. A bevel gear is fixed to the bottom of the outer surface of the screw, and a bevel gear is fixed to the end of the crank away from the sleeve. The second bevel gear meshes with the first bevel gear. A scraper ring is sleeved on the outer surface of the sleeve, and sliding rods are symmetrically fixed to the upper surface of the scraper ring. The top end of the sliding rod extends through to the top of the crossbar and is rotatably connected to a connecting rod. The top end of the connecting rod is rotatably connected to the outer surface of the crank.

[0007] Furthermore, a sliding groove is provided on the inner side wall of the sleeve, and a locking block is slidably connected inside the sliding groove. The locking block and the sliding groove are together fixed with a spring. An annular groove is formed above the outer surface of the sampling cylinder, and a cylindrical groove is formed on the lower surface of the inner surface of the annular groove. A rotating ring is rotatably connected inside the annular groove. Several slots are formed on the outer surface of the rotating ring. A rotating cylinder is rotatably connected inside the cylindrical groove. The top of the rotating cylinder is fixedly connected to the rotating ring. Several toothed grooves are formed at the bottom of the rotating cylinder. Several spur gears are meshed with the rotating cylinder through the toothed grooves. A worm is fixed in the middle of the spur gear. The worm is rotatably connected to the inner sidewall of the cylindrical groove. A worm wheel is meshed with the lower surface of the outer surface of the worm. The worm wheel rotates in the middle. A toothed cylinder is movably connected to the sampling cylinder. A rotating frame is fixed to the outer surface of the worm gear. A bottom groove is formed on the lower surface of the rotating frame. Two rotating blades are rotatably connected inside the bottom groove. A bevel gear three is fixed to the side of the rotating blades near the worm gear. Both bevel gear three are meshed with bevel gear four on opposite sides. A spur gear three is fixed between the two bevel gear four. A spur gear two is meshed with the toothed cylinder. The spur gear two and both spur gear three are rotatably connected inside the worm gear.

[0008] Furthermore, the end of the card block away from the spring has an arc-shaped structure and is inserted into the inside of the card slot, and the upper and lower edges of the annular groove are both rounded.

[0009] Furthermore, a ring cutter is fixed at the bottom of the sampling tube. The cutting edge of the ring cutter has a beveled wedge structure to reduce resistance when cutting into the bottom mud and to prevent the bottom mud from turning up and contaminating the upper sample.

[0010] Furthermore, the bottom edge of the sleeve has a beveled wedge-shaped structure, and the sleeve is in contact with the outer surface of the sampling tube; the inner side of the scraper ring has a double beveled wedge-shaped structure, and is in contact with the outer surface of the sleeve.

[0011] Furthermore, an annular storage groove is provided below the inner surface of the sampling tube, and the storage groove is adapted to the rotating frame.

[0012] Furthermore, several of the aforementioned rotating frames are arranged in a circular row between the outer side of the insertion rod and the sampling tube.

[0013] Furthermore, both of the rotating blades are adapted to the bottom groove.

[0014] The beneficial effects of the intelligent stratified sediment sampler of the present invention are as follows: (1) This invention achieves a stable spiral insertion of the sampling cylinder by driving a transmission wheel, screw, and bevel gear set via a motor. When the sampling cylinder reaches the target depth, the locking block inside the sleeve engages with the locking groove in the annular groove of the sampling cylinder under the action of a spring, forcing the rotating ring to remain stationary, and the sampling cylinder and the rotating cylinder rotate relative to each other. The rotating cylinder drives a spur gear, worm gear, and worm wheel transmission chain through the bottom tooth groove, causing the rotating frame to drive the rotating blades to unfold synchronously. The rotating blades are opened by a compound transmission of bevel gears and spur gears, forming a bottom sealing surface, which can effectively prevent the bottom mud from being lost due to gravity during the sampling process and ensure that the sample maintains its original stratified state during the lifting process. In addition, the sleeve fits tightly against the outer wall of the sampling cylinder, and its bottom beveled cutting edge can scrape off the silt adhering to the cylinder wall when the sampling cylinder rises, reducing the interference of outer wall contamination on the sample.

[0015] (2) This invention achieves full automation of the "sampling-cutting-cleaning" process through a transmission wheel and gear set: when the motor rotates in the forward direction, it drives the sampling cylinder to spirally cut into the bottom mud and triggers the layered cutting mechanism; when it rotates in the reverse direction, it drives the screw to lift the sampling cylinder, and at the same time, it drives the scraper ring to move up and down along the outer wall of the sleeve through the bevel gear and crank connecting rod mechanism. The double-sloping wedge structure on the inner side of the scraper ring fits tightly with the surface of the sleeve, which can efficiently remove the silt accumulation on the surface of the sampling cylinder and the outer wall of the sleeve, avoid the tedious operation of manual cleaning, significantly improve sampling efficiency and reduce the risk of cross-contamination. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 For the present invention Figure 3 A magnified structural diagram of point A in the middle; Figure 4 This is a schematic diagram of the sampling tube in this invention; Figure 5 This is a schematic diagram of the internal structure of the sampling cylinder and the rotating cylinder in this invention; Figure 6 This is a cross-sectional view of the sampling tube in this invention; Figure 7 This is a schematic diagram of the structure of the rotating cylinder and the rotating ring in this invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure viewed from below; Figure 9 This is a schematic diagram of the structure of the rotating frame and worm gear in this invention; Figure 10 For the present invention Figure 9 A schematic diagram of the cross-sectional structure; Figure 11 This is a schematic diagram of the internal structure of the rotating frame and worm gear in this invention.

[0018] In the diagram: 1. Sampling cylinder; 2. Stabilizer; 3. Screw; 4. Insertion rod; 5. Rectangular rod; 6. Transmission wheel one; 7. Transmission wheel two; 8. Top cover; 9. Motor; 10. Vertical frame; 11. Horizontal frame; 12. Sleeve; 13. Support; 14. Crank; 15. Bevel gear one; 16. Bevel gear two; 17. Slide rod; 18. Scraper ring; 19. Connecting rod; 20. Slide groove; 21. Locking block 22. Spring; 23. Ring groove; 24. Cylinder groove; 25. Rotary ring; 26. Slot; 27. Rotary cylinder; 28. Spur gear one; 29. ​​Worm; 30. Worm wheel; 31. Gear cylinder; 32. Rotating frame; 33. Rotating blade; 34. Bevel gear three; 35. Spur gear two; 36. Spur gear three; 37. Bevel gear four; 38. Bottom groove; 39. Gear groove; 40. Ring cutter; 41. Storage groove. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0020] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figures 1-11A smart, layered, high-fidelity sediment sampler includes a sampling cylinder 1. A stabilizing frame 2 is rotatably connected to the top of the sampling cylinder 1. Screws 3 are threaded to both ends of the stabilizing frame 2. A cutting rod 4 is fixed inside the sampling cylinder 1. A rectangular rod 5 is slidably connected to the sampling cylinder 1 and the cutting rod 4. A transmission wheel 6 is fixed to the top of the rectangular rod 5. A sleeve 12 is fitted onto the outer surface of the sampling cylinder 1. A horizontal frame 11 is symmetrically fixed to the outer surface of the sleeve 12. A vertical frame 10 is fixed to the end of the horizontal frame 11 away from the sleeve 12. A top cover 8 is fixed to the top of both vertical frames 10. A motor 9 is fixed at the center of the upper surface of the top cover 8. The bottom end of the output shaft of the motor 9 extends through to the lower surface of the top cover 8 and is connected to the transmission wheel 6. Wheel 6 is fixedly connected. A transmission wheel 7 is fixed to the top of the outer surface of the screw 3. Both transmission wheels 7 are in contact with the outer surface of the transmission wheel 6. A bracket 13 is fixed to the upper surface of the cross frame 11. A crank 14 is rotatably connected inside the bracket 13. A bevel gear 15 is fixed to the bottom of the outer surface of the screw 3. A bevel gear 16 is fixed to the end of the crank 14 away from the sleeve 12. The bevel gear 16 meshes with the bevel gear 15. A scraper ring 18 is sleeved on the outer surface of the sleeve 12. A sliding rod 17 is symmetrically fixed to the upper surface of the scraper ring 18. The top of the sliding rod 17 extends through to the top of the cross frame 11 and is rotatably connected to a connecting rod 19. The top of the connecting rod 19 is rotatably connected to the outer surface of the crank 14. The inner wall of the sleeve 12 is provided with a sliding groove 20, and a locking block 21 is slidably connected inside the sliding groove 20. The locking block 21 and the sliding groove 20 are together fixed with a spring 22. An annular groove 23 is formed on the upper surface of the outer surface of the sampling cylinder 1. A cylindrical groove 24 is formed on the lower surface of the inner surface of the annular groove 23. A rotating ring 25 is rotatably connected inside the annular groove 23. Several slots 26 are formed on the outer surface of the rotating ring 25. A rotating cylinder 27 is rotatably connected inside the cylindrical groove 24. The top of the rotating cylinder 27 is fixedly connected to the rotating ring 25. Several toothed grooves 39 are formed on the bottom of the rotating cylinder 27. Several spur gears 28 are meshed with the rotating cylinder 27 through the toothed grooves 39. A worm gear 29 is fixed in the middle of the spur gear 28. The worm gear 29 is rotatably connected to the inner wall of the cylindrical groove 24. A worm wheel 30 is meshed with the lower surface of the outer surface of the worm gear 29. A toothed cylinder 31 is rotatably connected in the middle of the worm wheel 30. The worm gear 30 is fixedly connected to the sampling cylinder 1. A rotating frame 32 is fixed on the outer surface of the worm gear 30. A bottom groove 38 is opened on the lower surface of the rotating frame 32. Two rotating blades 33 are rotatably connected inside the bottom groove 38. A bevel gear 34 is fixed on the side of the rotating blade 33 near the worm gear 30. Both bevel gears 34 are meshed with bevel gears 37 on opposite sides. A spur gear 36 is fixed between the two bevel gears 37. A spur gear 35 is meshed with the spur gear 36. The spur gear 35 is meshed with the gear cylinder 31. The spur gear 35 and the two spur gears 36 are rotatably connected inside the worm gear 30. Several rotating frames 32 are arranged in a circular row between the outer side of the insertion rod 4 and the sampling cylinder 1.

[0022] During sampling, the sampler is first placed on or above the sampling surface. When in use, motor 9 runs, driving transmission wheel 6, rectangular rod 5, and sampling cylinder 1 to rotate. Transmission wheel 7 drives the lower screw 3 to rotate, causing the stabilizing frame 2 and sampling cylinder 1 to descend. The spirally descending sampling cylinder 1 cuts into the bottom sediment through ring cutter 40, allowing the sediment to enter the sampling cylinder 1. When it reaches the bottom, the locking block 21, pushed by spring 22, engages with the locking groove 26. At this point, the rotating sampling cylinder 1 moves relative to the stationary rotating ring 25 and rotating cylinder 27. Thus, the spur gear 28 and worm 29 are rotated through the tooth groove 39. Under the transmission of the worm 29, the worm wheel 30 and the rotating frame 32 and other structures rotate and rise, rotating out of the storage groove 41. When the rotating frame 32 rotates, the spur gear 35 that moves inside it meshes with the stationary toothed cylinder 31. Under the transmission of the spur gear 36 and the two bevel gears 37 and 34, the two rotating blades 33 rotate and open, thereby cooperating with the rotating frame 32 and the insertion rod 4 to isolate the bottom of the sampling cylinder 1 and prevent the bottom mud from sliding off. When the motor 9 reverses, the transmission wheel 6 drives the screw 3 to rotate in the opposite direction, and through the threaded connection structure of the stabilizer 2, it drives the sampling tube 1 to lift upward; at the same time, the bevel gear 15 at the bottom of the screw 3 drives the bevel gear 16 and the crank 14 to rotate, and through the connecting rod 19, it drives the slide rod 17 to move the scraper ring 18 up and down along the outer wall of the sleeve 12 to clean the silt accumulated on the surface of the sleeve 12 due to cleaning the surface of the sampling tube 1.

[0023] Reference Figure 3 , Figure 4 The end of the locking block 21 furthest from the spring 22 has an arc-shaped structure and inserts into the slot 26. The upper and lower edges of the annular groove 23 are rounded. Figure 3 As shown, the rotating ring 25 is limited by the slot 26, the block 21, and the sleeve 12, and will not rotate when the sampling tube 1 rotates, thus forming a relative movement with the sampling tube 1. At this time, the rotating tube 27 drives the worm gear 30 and other structures through the toothed groove 39, causing the rotating frame 32 and the rotating blade 33 to rotate and open, sealing the lower part of the sampling tube 1, cutting the sampled bottom mud, so that after the sampler is extracted, the bottom mud outflow and loss are reduced, and the bottom mud is collected in a more complete and accurate layered manner.

[0024] Reference Figure 2 The bottom of the sampling tube 1 is fixed with a ring cutter 40. The cutting edge of the ring cutter 40 has a beveled wedge structure to reduce the resistance when cutting into the bottom mud and to prevent the bottom mud from turning up and contaminating the upper sample.

[0025] Reference Figure 3 The bottom edge of the sleeve 12 has a beveled wedge structure, and the sleeve 12 is in contact with the outer surface of the sampling tube 1. When the sampling tube 1 rises after sampling, it moves relative to the sleeve 12, thereby scraping and cleaning the surface of the sampling tube 1 at an angle through the bottom edge of the sleeve 12. The inner side of the scraper ring 18 has a double-sloping wedge-shaped structure and is in contact with the outer surface of the sleeve 12. The scraper ring 18 moves up and down reciprocally under the transmission of the crank 14 and other structures to clean the sludge on the surface of the sleeve 12 and prevent sludge accumulation.

[0026] Reference Figure 6 , Figure 8 , Figure 10 An annular receiving groove 41 is provided below the inner surface of the sampling tube 1. The receiving groove 41 is adapted to the rotating frame 32. Before sampling, the rotating frame 32 and other structures are placed vertically and stored inside the receiving groove 41. Both rotating blades 33 are adapted to the bottom groove 38. The rotating blades 33 can be stored inside the bottom groove 38, thereby allowing the rotating frame 32 to be stored inside the receiving groove 41. This avoids obstructing the inside of the sampling tube 1 that is vertically descending for sampling and reduces damage to the bottom mud layer.

[0027] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An intelligent stratified sediment sampler, comprising a sampling tube (1), characterized in that: The top of the sampling tube (1) is rotatably connected to a stabilizing frame (2). The left and right ends of the stabilizing frame (2) are threaded with screws (3). The sampling tube (1) is fixed inside a cutting rod (4). The sampling tube (1) and the cutting rod (4) are slidably connected to a rectangular rod (5). The top of the rectangular rod (5) is fixed with a transmission wheel (6). The outer surface of the sampling tube (1) is fitted with a sleeve (12). The outer surface of the sleeve (12) is symmetrically fixed with a crossbeam (11). The end of the crossbeam (11) away from the sleeve (12) is fixed with a vertical frame (10). The tops of the two vertical frames (10) are fixed with a top cover (8). The center of the upper surface of the top cover (8) is fixed with a motor (9). The bottom end of the output shaft of the motor (9) extends through to the lower surface of the top cover (8) and is fixedly connected to the transmission wheel (6). A transmission wheel 2 (7) is fixed to the top of the outer surface of the rod (3). Both transmission wheels 2 (7) are in contact with the outer surface of the transmission wheel 1 (6). A bracket (13) is fixed to the upper surface of the cross frame (11). A crank (14) is rotatably connected inside the bracket (13). A bevel gear 1 (15) is fixed to the bottom of the outer surface of the screw (3). A bevel gear 2 (16) is fixed to the end of the crank (14) away from the sleeve (12). The bevel gear 2 (16) meshes with the bevel gear 1 (15). A scraper ring (18) is sleeved on the outer surface of the sleeve (12). A sliding rod (17) is symmetrically fixed to the upper surface of the scraper ring (18). The top end of the sliding rod (17) extends through to the top of the cross frame (11) and is rotatably connected to a connecting rod (19). The top end of the connecting rod (19) is rotatably connected to the outer surface of the crank (14).

2. The intelligent stratified sediment sampler according to claim 1, characterized in that: The inner wall of the sleeve (12) is provided with a sliding groove (20), and a locking block (21) is slidably connected inside the sliding groove (20). The locking block (21) and the sliding groove (20) are together fixed with a spring (22). An annular groove (23) is formed above the outer surface of the sampling tube (1). A cylindrical groove (24) is formed on the lower surface inside the annular groove (23). A rotating ring (25) is rotatably connected inside the annular groove (23). Several slots (26) are formed on the outer surface of the rotating ring (25). A rotating cylinder (27) is rotatably connected inside the cylindrical groove (24). The top of the rotating cylinder (27) is fixedly connected to the rotating ring (25). Several toothed grooves (39) are formed at the bottom of the rotating cylinder (27). Several spur gears (28) are meshed with the rotating cylinder (27) through the toothed grooves (39). A worm gear (29) is fixed in the middle of the spur gear (28). The worm gear (29) is rotatably connected to the inner wall of the cylindrical groove (24). A worm wheel (30) is meshed with the lower surface of the outer surface of the worm gear (29). A toothed cylinder (31) is rotatably connected to the sampling cylinder (1). A rotating frame (32) is fixed on the outer surface of the worm gear (30). A bottom groove (38) is opened on the lower surface of the rotating frame (32). Two rotating blades (33) are rotatably connected inside the bottom groove (38). A bevel gear three (34) is fixed on the side of the rotating blade (33) near the worm gear (30). A bevel gear four (37) is meshed on the opposite side of the two bevel gear three (34). A spur gear three (36) is fixed between the two bevel gear four (37). A spur gear two (35) is meshed with the spur gear three (36). The spur gear two (35) is meshed with the toothed cylinder (31). The spur gear two (35) and the two spur gear three (36) are rotatably connected inside the worm gear (30).

3. The intelligent stratified sediment sampler according to claim 2, characterized in that: The end of the card block (21) away from the spring (22) is an arc-shaped structure and is inserted into the card slot (26). The upper and lower edges of the ring groove (23) are rounded.

4. The intelligent stratified sediment sampler according to claim 1, characterized in that: The bottom of the sampling tube (1) is fixed with a ring cutter (40). The cutting edge of the ring cutter (40) is a beveled wedge structure to reduce the resistance when cutting into the bottom mud and prevent the bottom mud from turning up and contaminating the upper sample.

5. The intelligent stratified sediment sampler according to claim 1, characterized in that: The bottom edge of the sleeve (12) has a beveled wedge structure, and the sleeve (12) is in contact with the outer surface of the sampling tube (1); the inner side of the scraper ring (18) has a double beveled wedge structure, and is in contact with the outer surface of the sleeve (12).

6. The intelligent stratified sediment sampler according to claim 2, characterized in that: The sampling tube (1) has an annular storage groove (41) below the inner surface, and the storage groove (41) is adapted to the rotating frame (32).

7. The intelligent stratified sediment sampler according to claim 2, characterized in that: Several of the rotating frames (32) are arranged in a circular array between the outer side of the insertion rod (4) and the sampling tube (1).

8. The intelligent stratified sediment sampler according to claim 2, characterized in that: Both of the blades (33) are adapted to the bottom groove (38).

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