Grab bucket type stratified mud mining device for vortex well

Abstract

The invention discloses a grab-type stratified mud sampling device for a vortex well, which relates to the technical field of sludge sampling, and comprises a immersed tube, a sinker installed at the bottom end of the immersed tube, and a plurality of collection mechanisms installed inside the immersed tube, wherein the collection mechanisms comprise: a grab; a displacement component used for driving two grabs to move synchronously; an adjustment component used for driving the two grabs to move closer to or farther away from each other; a flip component used for driving the grabs to rotate; a sample collecting tube; and a water removal component used for removing moisture from the sludge entering the sample collecting tube. The grab-type stratified mud sampling device for a vortex well drives the grabs away from the immersed tube, and separates the two grabs only after they are away from the immersed tube, utilizes the fluidity of the sludge, allows the sludge to enter the two grabs, and performs sludge collection, thereby preventing the grabs from collecting sludge near the outer wall of the immersed tube, thereby ensuring the accuracy of sludge stratified sampling, and discards moisture from the sludge entering the filter tube through the water removal component, so that sufficient mud samples can be stored inside the sample collecting tube.

Description

Technical Field

[0001] The invention relates to the technical field of sludge sampling, and in particular to a grab-type stratified sludge sampling device for a vortex well. Background Art

[0002] A vortex well is a vortex sedimentation tank, which consists of an inlet, an outlet, a grit separation area, a sand collection area, a sand lifting pump, a sand discharge pipe, an electric motor and a gearbox. The sewage flows into the grit tank from the inlet along the tangential direction, and the motor drives the turntable and the impeller to rotate. Under the action of centrifugation, the sand particles with higher density in the sewage are thrown to the pool wall, and the organic matter that falls into the sand bucket remains in the water. By adjusting the rotation speed, the best sedimentation effect can be achieved. When the precipitated sludge needs to be discharged, the sludge needs to be sampled first to detect whether the composition of the sludge meets the discharge standards.

[0003] When existing stratified mud sampling devices sample silt at different depths, it is easy to collect mud samples around the outer wall of the submerged tube. The mud samples around the outer wall of the submerged tube may be brought in from other depths when the submerged tube sinks. Therefore, the collected mud samples are not necessarily mud samples at the current depth, and it is difficult to ensure the accuracy of stratified sampling. Summary of the invention

[0004] The purpose of the present invention is to provide a grab bucket type stratified mud mining device for a vortex well to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a grab-type stratified mud mining device for a vortex well, comprising a immersed tube, a sinker installed at the bottom of the immersed tube, and a plurality of collection mechanisms installed inside the immersed tube, wherein the sinker is a conical structure, and the plurality of collection mechanisms are arranged in sequence along the height direction of the immersed tube, and the collection mechanisms include:

[0006] A partition plate, which is installed inside the immersed tube and is provided with two;

[0007] A grab bucket, which is disposed between two partitions and is provided with two;

[0008] A displacement assembly, which is arranged between the two partitions and is used to drive the two grab buckets to move synchronously;

[0009] An adjustment component connected to the displacement component and used to drive the two grab buckets to move closer to or away from each other;

[0010] A flip assembly, which is connected to the displacement assembly and is used to drive the grab bucket to rotate;

[0011] An opening and closing assembly is arranged between the two partitions, and the opening and closing assembly comprises an outlet opened on the outer wall of the immersed tube and a closing component for closing the outlet;

[0012] A sample collecting cylinder is rotatably connected to the top of one of the partitions, and a drainage port is provided at the bottom of the sample collecting cylinder;

[0013] A water removal component, which is connected to the sample collecting cylinder and is used to remove water from the sludge entering the sample collecting cylinder;

[0014] A mud discharge assembly is arranged between two partitions and is used to discharge the mud in the sample collecting tube;

[0015] The driving assembly is installed at the bottom of another partition plate and is used to drive the displacement assembly, the water removal assembly and the mud discharge assembly to operate respectively.

[0016] Further, the displacement assembly includes a first driven shaft rotatably connected to the inner wall of the immersed tube, a first reciprocating screw fixedly sleeved on the outside of the first driven shaft, and a moving block screwed on the outside of the first reciprocating screw;

[0017] A slide groove is provided inside the moving block, and two sliders are slidably connected inside the slide groove. Linkage rods are rotatably connected inside the two sliders, and one end of the two linkage rods is fixedly connected to the outer wall of one side of the two grab buckets respectively.

[0018] A guide rod is fixedly connected to the interior of the immersed tube, and the moving block is also slidably sleeved on the exterior of the guide rod;

[0019] The first driven shaft is connected to the driving assembly.

[0020] Further, the adjustment assembly includes a bidirectional screw rotatably connected to the inside of the slide slot and a first gear fixed to one end of the bidirectional screw extending to the outside of the moving block;

[0021] The two sliding blocks are both screwed onto the outside of the bidirectional screw;

[0022] First racks are fixedly connected to the inner walls of both sides of the immersed tube, and the two first racks are matched with the first gear.

[0023] Further, the flip assembly includes a second driven shaft rotatably connected to the inner wall of the slide slot and two linkage components installed outside the second driven shaft, and the two linkage components are respectively connected to two linkage rods;

[0024] The linkage component includes a sleeve slidably sleeved on the outside of the second driven shaft and two first bevel gears fixedly sleeved on the outside of the sleeve and the outside of the linkage rod, respectively, the two first bevel gears are meshed with each other, and a connecting block is rotatably sleeved on the outside of the sleeve, the connecting block is an L-shaped structure, and the connecting block is also rotatably sleeved on the outside of the linkage rod;

[0025] One end of the second driven shaft extends to the outside of the moving block and is fixedly connected to a second gear. A second rack is fixedly connected to the inner wall of the immersed tube away from the outlet, and the second rack is meshed with the second gear.

[0026] Furthermore, the sealing component comprises a first sealing plate slidably connected to the inner wall of the immersed tube and an electric push rod installed on the top of one of the partitions, the first sealing plate is used to seal the outlet, and the extended end of the electric push rod is fixedly connected to the bottom of the first sealing plate;

[0027] The closing component also includes a second closing plate fixedly connected to the outer wall on one side of the moving block and two movable grooves opened inside the second closing plate. Two sealing blocks are also slidably connected to the outer wall on one side of the second closing plate. The sealing blocks are used to seal the movable grooves. The linkage rod passes through the movable groove, and the sealing block is rotatably sleeved on the outside of the linkage rod. The second closing plate is also used to seal the outlet.

[0028] Furthermore, the dewatering assembly includes a sample guide funnel fixedly connected to the top of the sample collecting cylinder, a filter cylinder fixedly connected to the bottom of the sample guide funnel, and a rotating component for driving the sample collecting cylinder to rotate;

[0029] The bottom of the filter cartridge is a closed structure;

[0030] The rotating component comprises a third driven shaft rotatably connected between the two partitions, a third gear fixedly sleeved on the outside of the third driven shaft, and a gear ring fixedly sleeved on the outside of the sample collecting tube, and the third gear is meshed with the gear ring;

[0031] The third driven shaft is connected to the driving assembly.

[0032] Furthermore, a drain pipe is installed inside one of the partitions, the drain pipe is connected to the drain port, and a solenoid valve is installed outside the drain pipe;

[0033] A main pipe is installed inside the submerged tube along its height direction, and a plurality of drainage pipes are connected to the main pipe, and the bottom end of the main pipe extends to the inside of the submerged head;

[0034] The countersunk head is a hollow structure, a water outlet is provided at the bottom end of the countersunk head, and a sealing cover is screwed inside the water outlet.

[0035] Furthermore, the mud discharge assembly includes a bracket fixedly connected to the top of the partition, a mud guide cylinder installed on the top of the bracket, and a fourth driven shaft rotatably connected to the inner wall of the immersed tube;

[0036] A piston is installed inside the mud guide cylinder, a connecting rod is fixedly connected to the outer wall of one side of the piston, and a linkage block is fixedly connected to the other end of the connecting rod;

[0037] A mud inlet pipe is installed at one end of the mud guide cylinder, and the other end of the mud inlet pipe extends to the interior of the filter cylinder. A mud discharge pipe is installed at the bottom of the mud guide cylinder, and the other end of the mud discharge pipe extends to the interior of the submerged tube and is installed with a detachable sealing plug. A first one-way valve is installed on the mud inlet pipe, and a second one-way valve is installed on the mud discharge pipe. The linkage block is slidably sleeved on the outside of the mud discharge pipe.

[0038] The outer portion of the fourth driven shaft is fixedly sleeved with a second reciprocating screw, and the linkage block is also screwed to the outer portion of the second reciprocating screw;

[0039] A scraper strip is fixedly connected to the bottom of the mud inlet pipe, and the outer wall of the scraper strip abuts against the inner wall of the filter cylinder;

[0040] The fourth driven shaft is connected to the driving assembly.

[0041] Further, the driving assembly includes a motor mounted on the bottom of the partition, a fourth gear fixedly sleeved on the outside of the motor output shaft, and a first driving shaft and a second driving shaft rotatably connected to the bottom of the partition;

[0042] A first one-way gear is installed outside the first driving shaft, and the first one-way gear is meshed with the fourth gear;

[0043] The outside of the second driving shaft and the outside of the first driven shaft are both fixedly sleeved with second bevel gears, and the two second bevel gears are meshed with each other;

[0044] The first drive shaft and the second drive shaft are connected to each other through a first transmission member, and the first drive shaft and the third driven shaft are connected to each other through a second transmission member.

[0045] Furthermore, the drive assembly also includes a third drive shaft rotatably connected between the two partitions and a second one-way gear installed on the outside of the third drive shaft, the second one-way gear is meshed with a fourth gear, and the outside of the third drive shaft and the outside of the fourth driven shaft are both fixedly sleeved with a third bevel gear, and the two third bevel gears are meshed with each other.

[0046] Compared with the prior art, the grab-type stratified mud mining device for a vortex well provided by the present invention has the following beneficial effects:

[0047] By driving the grab bucket away from the immersed tube and separating the two grab buckets only after they are away from the immersed tube, the fluidity of the sludge is utilized to allow the sludge to enter the two grab buckets for sludge collection, thus preventing the grab buckets from collecting sludge near the outer wall of the immersed tube and ensuring the accuracy of sludge stratified sampling.

[0048] The water in the sludge entering the filter cartridge is thrown out by the water removal component, so that sufficient mud samples can be stored in the sample collection cartridge, thereby preventing the sample collection cartridge from containing too much water, resulting in insufficient mud samples being collected. In addition, the movement principle of the water removal component is utilized to facilitate the cleaning of the inside of the filter cartridge.

[0049] The mud sample inside the sample collecting tube can be gradually discharged through the mud discharge component, which improves the convenience of mud sample discharge, and utilizes the movement principle of the mud discharge component to facilitate cleaning of the inside of the mud discharge component. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0051] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0052] Figure 2 It is a schematic diagram of the internal structure of the immersed tube of the present invention from a first viewing angle;

[0053] Figure 3 It is a schematic diagram of the internal structure of the immersed tube of the present invention from a second viewing angle;

[0054] Figure 4 It is a schematic diagram of the structure of the collection mechanism of the present invention;

[0055] Figure 5 It is a schematic diagram of the structures of the displacement assembly, the adjustment assembly and the flip assembly of the present invention;

[0056] Figure 6 It is a schematic diagram of the structure of the adjustment component and the flip component of the present invention;

[0057] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement in the middle;

[0058] Figure 8 It is a schematic diagram of the partial structure of the closing component of the present invention;

[0059] Fig. 9 It is a schematic diagram of the internal structure of the sample collecting tube of the present invention;

[0060] Fig.10 It is a schematic diagram of the structure of the mud discharge assembly of the present invention.

[0061] Description of reference numerals:

[0062] 1. Immersed tube; 2. Countersunk head; 3. Partition plate; 4. Grab bucket; 5. Outlet; 6. Sample collecting tube; 7. Drain outlet; 8. First driven shaft; 9. First reciprocating screw; 10. Moving block; 11. Sliding block; 12. Linking rod; 13. Guide rod; 14. Bidirectional screw; 15. First gear; 16. First rack; 17. Second driven shaft; 18. Sliding sleeve; 19. First bevel gear; 20. Connecting block; 21. Second gear; 22. Second rack; 23. First closing plate; 24. Electric push rod; 25. Second closing plate; 26. Movable groove; 27. Sealing block; 28. Sample guide funnel; 29. ​​Filter tube; 30. Third driven shaft; 31. Third gear ; 32. gear ring; 33. drain pipe; 34. solenoid valve; 35. main pipe; 36. sealing cover; 37. bracket; 38. mud guide tube; 39. fourth driven shaft; 40. piston; 41. connecting rod; 42. linkage block; 43. mud inlet pipe; 44. mud discharge pipe; 45. first one-way valve; 46. second one-way valve; 47. second reciprocating screw; 48. motor; 49. fourth gear; 50. first drive shaft; 51. second drive shaft; 52. first one-way gear; 53. first transmission member; 54. second transmission member; 55. second bevel gear; 56. third drive shaft; 57. second one-way gear; 58. third bevel gear; 59. scraper. DETAILED DESCRIPTION

[0063] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0064] Example: See Figure 1 - Fig.10 The grab-type stratified mud mining device for a vortex well comprises a immersed tube 1, a sinker 2 installed at the bottom of the immersed tube 1, and a plurality of collecting mechanisms installed inside the immersed tube 1. The sinker 2 is a conical structure. The plurality of collecting mechanisms are sequentially arranged along the height direction of the immersed tube 1. The collecting mechanisms include:

[0065] The partition plate 3 is installed inside the immersed tube 1, and two partition plates are provided;

[0066] A grab bucket 4, which is arranged between two partitions 3, and is provided with two;

[0067] A displacement assembly is arranged between two partitions 3 and is used to drive two grab buckets 4 to move synchronously. The displacement assembly includes a first driven shaft 8 rotatably connected to the inner wall of the immersed tube 1, a first reciprocating screw 9 fixedly sleeved on the outside of the first driven shaft 8, and a moving block 10 screwed on the outside of the first reciprocating screw 9; a slide groove is provided inside the moving block 10, two sliders 11 are slidably connected inside the slide groove, and linkage rods 12 are rotatably connected inside the two sliders 11, and one end of the two linkage rods 12 is fixedly connected to the outer wall of one side of the two grab buckets 4 respectively; a guide rod 13 is fixedly connected inside the immersed tube 1, and the moving block 10 is also slidably sleeved on the outside of the guide rod 13; the first driven shaft 8 is connected to the driving assembly;

[0068] When sampling is required, the immersed tube 1 is driven down through the external lifting mechanism to enter the specified depth inside the silt in the well, and then the electric push rod 24 is controlled to retract, driving the first closing plate 23 to move downward to open the outlet 5, and then the first driven shaft 8 is driven to rotate through the driving assembly, and the first reciprocating screw 9 rotates synchronously therewith, driving the moving block 10 to move from the left end of the first reciprocating screw 9 to its right end. In this process, the two grab buckets 4 are driven to move to the right synchronously through the slider 11 and the linkage rod 12, extending out of the immersed tube 1, so that the grab bucket 4 is away from the immersed tube 1, preventing the subsequent grab bucket 4 from collecting the silt near the outer wall of the immersed tube 1, because the mud sample around the outer wall of the immersed tube 1 may be brought in from other depths when the immersed tube 1 sinks, and it is difficult to ensure the accuracy of stratified sampling.

[0069] An adjustment component, which is connected to the displacement component and is used to drive the two grab buckets 4 to move closer to or away from each other, includes a bidirectional screw 14 rotatably connected to the inside of the slideway and a first gear 15 fixed to the bidirectional screw 14 and extending to one end outside the moving block 10; the two sliders 11 are both screwed to the outside of the bidirectional screw 14; first racks 16 are fixed to the inner walls of both sides of the immersed tube 1, and the two first racks 16 are matched with the first gear 15, wherein the tooth grooves of the two first racks 16 are arranged opposite to each other, wherein one of the first racks 16 is located above the first gear 15, and the other first rack 16 is located below the first gear 15, therefore, when the first gear 15 is respectively meshed with the two first racks 16, the bidirectional screw 14 can be driven to rotate in different directions;

[0070] When the moving block 10 moves to the right, the two-way screw 14 is driven to rotate through the meshing effect between the first gear 15 and the first rack 16 on the left, thereby driving the two sliders 11 to approach each other, thereby driving the two linkage rods 12 to approach each other, and the two grab buckets 4 are then approached to each other, so that the mouths of the two grab buckets 4 are relatively closed together, and the first gear 15 and the first rack 16 lose meshing, so that when the grab bucket 4 moves out of the immersed tube 1, the grab bucket 4 is in a closed state and does not collect silt. When the first gear 15 moves to mesh with the first rack 16 on the right, the two-way screw 14 is driven to reverse, thereby driving the two grab buckets 4 away from each other, and using the fluidity of the silt, the silt enters the two grab buckets 4 to collect silt, thereby ensuring the accuracy of silt stratified sampling;

[0071] After the sludge collection is completed, the moving block 10 is driven to move to the left. At this time, the bidirectional screw 14 is driven to rotate forward through the meshing effect between the first gear 15 and the first rack 16 on the right, driving the two grab buckets 4 to approach and abut against each other to seal the collected sludge. After the grab bucket 4 enters the immersed tube 1, the first gear 15 meshes with the first rack 16 on the left, driving the bidirectional screw 14 to reverse, and again driving the two grab buckets 4 away from each other, so that the sludge inside the grab bucket 4 falls into the sample collecting tube 6.

[0072] The flip assembly is connected to the displacement assembly and is used to drive the grab bucket 4 to rotate. The flip assembly includes a second driven shaft 17 rotatably connected to the inner wall of the slide groove and two linkage components installed on the outside of the second driven shaft 17, and the two linkage components are respectively connected to the two linkage rods 12; the linkage component includes a sliding sleeve 18 slidably sleeved on the outside of the second driven shaft 17 and two first bevel gears 19 respectively fixedly sleeved on the outside of the sliding sleeve 18 and the outside of the linkage rod 12, and the two first bevel gears 19 are meshed with each other. The outside of the sliding sleeve 18 is also rotatably sleeved with a connecting block 20, which is an L-shaped structure and is also rotatably sleeved on the outside of the linkage rod 12; one end of the second driven shaft 17 extends to the outside of the moving block 10 and is fixedly connected to a second gear 21, and a second rack 22 is fixedly connected to the inner wall of the immersed tube 1 away from the outlet 5, and the second rack 22 is meshed with the second gear 21;

[0073] When the moving block 10 is driven to move rightward, the meshing effect between the second gear 21 and the second rack 22 drives the second driven shaft 17 to rotate forward, and the two sleeves 18 outside the second driven shaft 17 rotate synchronously accordingly, and the meshing effect between the first bevel gear 19 outside the sleeve 18 and the first bevel gear 19 outside the linkage rod 12 drives the linkage rod 12 to rotate 90°, thereby driving the grab bucket 4 to rotate 90°, and the second gear 21 loses meshing with the second rack 22, so that the two grab buckets 4 rotate from the original mouth downward to the mouth facing each other, and before the two grab buckets 4 approach each other and abut each other, the rotation is completed, so that the mouths of the two grab buckets 4 can abut each other;

[0074] After the grab bucket 4 collects the sludge and returns to the inside of the immersed tube 1, the first gear 15 first meshes with the first rack 16 to move the two grab buckets 4 away from each other, providing a rotation space for the subsequent rotation of the grab buckets 4, and then the second gear 21 meshes with the second rack 22 again, driving the second driven shaft 17 to reverse, thereby driving the two grab buckets 4 to rotate 90 degrees, so that the mouths of the two grab buckets 4 are facing downward, and the sludge inside the grab buckets 4 is quickly discharged;

[0075] When the linkage rod 12 moves, the connecting block 20 drives the sliding sleeve 18 to move synchronously, so that the two first bevel gears 19 always maintain a meshing state.

[0076] The opening and closing assembly is arranged between the two partitions 3. The opening and closing assembly includes an outlet 5 opened on the outer wall of the immersed tube 1 and a closing component for closing the outlet 5. The closing component includes a first closing plate 23 slidably connected to the inner wall of the immersed tube 1 and an electric push rod 24 installed on the top of one of the partitions 3. The first closing plate 23 is used to seal the outlet 5. The extended end of the electric push rod 24 is fixed to the bottom of the first closing plate 23; the closing component also includes a second closing plate 25 fixed to the outer wall of one side of the moving block 10 and two movable grooves 26 opened inside the second closing plate 25. Two sealing blocks 27 are also slidably connected to the outer wall of one side of the second closing plate 25. The sealing block 27 is used to seal the movable groove 26. The linkage rod 12 is arranged to pass through the movable groove 26, and the sealing block 27 is rotatably sleeved on the outside of the linkage rod 12. The second closing plate 25 is also used to seal the outlet 5;

[0077] Before the grab 4 enters the immersed tube 1, the electric push rod 24 is controlled to retract, driving the first closing plate 23 to move downward to open the outlet 5. After the grab 4 is fully extended into the sludge and enters the sludge collection process, the outlet 5 is closed by the second closing plate 25, that is, when the moving block 10 moves to the right to the right end of the first reciprocating screw 9, the second closing plate 25 just abuts against the left side of the outlet 5 to seal the outlet 5. The movable groove 26 is provided to provide a moving space for the linkage rod 12. When the linkage rod 12 moves, it drives the sealing block 27 to move synchronously to always seal the movable groove 26. After the grab 4 collects the sludge and enters the immersed tube 1, the electric push rod 24 is controlled to extend, driving the first closing plate 23 to move upward to seal the outlet 5.

[0078] A sample collecting barrel 6 is rotatably connected to the top of one of the partitions 3, and a drain port 7 is provided at the bottom of the sample collecting barrel 6; a water removal assembly is connected to the sample collecting barrel 6 and is used to remove moisture from the sludge entering the inside of the sample collecting barrel 6, and the water removal assembly includes a sample guide funnel 28 fixedly connected to the top of the sample collecting barrel 6, a filter barrel 29 fixedly connected to the bottom of the sample guide funnel 28, and a rotating component for driving the sample collecting barrel 6 to rotate; the bottom of the filter barrel 29 is a closed structure; the rotating component includes a third driven shaft 30 rotatably connected between the two partitions 3, a third gear 31 fixedly sleeved on the outside of the third driven shaft 30, and a gear ring 32 fixedly sleeved on the outside of the sample collecting barrel 6, and the third gear 31 is meshed with the gear ring 32; the third driven shaft 30 is connected to the driving assembly;

[0079] The third driven shaft 30 is driven to rotate by the driving assembly, and the meshing action between the third gear 31 and the ring gear 32 drives the sample collecting tube 6 to rotate. The centrifugal force generated by the rotation of the sample collecting tube 6 will throw out the water in the sludge entering the filter tube 29, so that sufficient mud samples can be stored inside the sample collecting tube 6, preventing the sample collecting tube 6 from containing too much water, resulting in insufficient collected mud samples.

[0080] A drain pipe 33 is installed inside one of the partitions 3, and the drain pipe 33 is connected to the drain port 7. A solenoid valve 34 is installed outside the drain pipe 33. A main flow pipe 35 is installed inside the submerged tube 1 along its height direction. Multiple drain pipes 33 are connected to the main flow pipe 35, and the bottom end of the main flow pipe 35 extends to the inside of the submerged head 2. The submerged head 2 is a hollow structure, and a water outlet is opened at the bottom end of the submerged head 2. A sealing cover 36 is screwed inside the water outlet. A scraper strip 59 is fixed to the bottom of the mud inlet pipe 43, and the outer wall of the scraper strip 59 abuts against the inner wall of the filter cartridge 29.

[0081] During the sludge collection process, the solenoid valve 34 is open, and the water thrown out by the filter cartridge 29 enters the drainage pipe 33 through the drainage port 7, and enters the sink 2 through the main pipe 35 for storage. After the sink 1 is moved out of the well, the water inside the sink 2 can be discharged by unscrewing the sealing cap 36;

[0082] When it is necessary to clean the inside of the sample collecting tube 6, the solenoid valve 34 is opened and closed, and cleaning water is injected into the inside of the sample collecting tube 6 through the outlet 5. The filter tube 29 is cleaned by repeatedly driving the sample collecting tube 6 to rotate. In this process, the sludge on the inner wall of the filter tube 29 is scraped off by the scraper bar 59, so that the inside of the filter tube 29 is fully cleaned.

[0083] The mud discharge assembly is arranged between the two partitions 3 and is used to discharge the sludge in the sample collecting tube 6. The mud discharge assembly includes a bracket 37 fixedly connected to the top of the partition 3, a mud guide tube 38 installed on the top of the bracket 37, and a fourth driven shaft 39 rotatably connected to the inner wall of the immersed tube 1; a piston 40 is installed inside the mud guide tube 38, a connecting rod 41 is fixedly connected to the outer wall of one side of the piston 40, and a linkage block 42 is fixedly connected to the other end of the connecting rod 41; a mud inlet pipe 43 is installed at one end of the mud guide tube 38, and the other end of the mud inlet pipe 43 extends to the inside of the filter tube 29 , the other end of the mud guide tube 38 is provided with an opening, a mud discharge pipe 44 is installed at the bottom of the mud guide tube 38, the other end of the mud discharge pipe 44 extends to the interior of the immersed tube 1, and is installed with a detachable sealing plug, a first one-way valve 45 is installed on the mud inlet pipe 43, a second one-way valve 46 is installed on the mud discharge pipe 44, and the linkage block 42 is slidably sleeved on the outside of the mud discharge pipe 44; the outside of the fourth driven shaft 39 is fixedly sleeved with a second reciprocating screw 47, and the linkage block 42 is also screwed on the outside of the second reciprocating screw 47; the fourth driven shaft 39 is connected to the driving assembly;

[0084] The first one-way valve 45 is provided so that the sludge in the filter cartridge 29 can enter the inside of the mud guide cartridge 38 through the mud inlet pipe 43, while the sludge in the mud guide cartridge 38 cannot enter the inside of the filter cartridge 29 through the mud inlet pipe 43; the second one-way valve 46 is provided so that the sludge in the mud guide cartridge 38 can be discharged through the mud discharge pipe 44, while the external medium cannot enter the inside of the mud guide cartridge 38 through the mud discharge pipe 44;

[0085] When the mud sample in the sample collecting cylinder 6 needs to be discharged, the fourth driven shaft 39 is driven to rotate by the driving assembly, and the second reciprocating screw 47 is rotated accordingly, thereby driving the linkage block 42 to reciprocate left and right along the outside of the second reciprocating screw 47. In this process, the piston 40 is driven to reciprocate left and right along the inner wall of the mud guide cylinder 38 by the connecting rod 41. When the piston 40 moves to the left, the mud in the filter cylinder 29 is drawn into the mud guide cylinder 38 through the mud inlet pipe 43. When the piston 40 moves to the right, the mud in the mud guide cylinder 38 is discharged through the mud discharge pipe 44. The cycle is repeated in sequence to discharge the mud in the filter cylinder 29 in sequence.

[0086] After the inside of the filter cartridge 29 is cleaned, the mud discharge operation is repeated, and water is continuously added to the inside of the filter cartridge 29 . The solenoid valve 34 is in a closed state, so that the inside of the mud inlet pipe 43 , the mud guide cylinder 38 and the mud discharge pipe 44 can be cleaned.

[0087] A driving assembly is installed at the bottom of another partition 3, and is used to drive the displacement assembly, the water removal assembly and the mud discharge assembly to operate respectively. The driving assembly includes a motor 48 installed at the bottom of the partition 3, a fourth gear 49 fixedly sleeved on the outside of the output shaft of the motor 48, and a first driving shaft 50 and a second driving shaft 51 rotatably connected to the bottom of the partition 3; a first one-way gear 52 is installed on the outside of the first driving shaft 50, and the first one-way gear 52 is meshed with the fourth gear 49; a second bevel gear 55 is fixedly sleeved on the outside of the second driving shaft 51 and the outside of the first driven shaft 8, and the two first bevel gears 55 are fixedly sleeved on the outside of the second driving shaft 51 and the first driven shaft 8. The two bevel gears 55 are meshed with each other; the first drive shaft 50 and the second drive shaft 51 are connected to each other through the first transmission member 53, and the first drive shaft 50 and the third driven shaft 30 are connected to each other through the second transmission member 54. The first transmission member 53 includes two synchronous wheels respectively fixedly sleeved on the outside of the first drive shaft 50 and the second drive shaft 51 and a synchronous belt connected to the outside of the two synchronous wheels; the second transmission member 54 includes two synchronous wheels respectively fixedly sleeved on the outside of the first drive shaft 50 and the third driven shaft 30 and a synchronous belt connected to the outside of the two synchronous wheels;

[0088] When the fourth gear 49 is driven to rotate forward by controlling the motor 48, the first drive shaft 50 is driven to rotate through the meshing effect between the fourth gear 49 and the first one-way gear 52. At this time, the second one-way gear 57 also rotates therewith, but the third drive shaft 56 does not rotate therewith. When the first drive shaft 50 rotates, the second drive shaft 51 is driven to rotate through the transmission connection of the first transmission member 53, the first driven shaft 8 is driven to rotate through the meshing effect between the two second bevel gears 55, and the third driven shaft 30 is driven to rotate through the transmission connection of the second transmission member 54.

[0089] The driving assembly also includes a third driving shaft 56 rotatably connected between the two partitions 3 and a second one-way gear 57 mounted on the outside of the third driving shaft 56, the second one-way gear 57 is meshed with the fourth gear 49, and the outside of the third driving shaft 56 and the outside of the fourth driven shaft 39 are both fixedly sleeved with a third bevel gear 58, and the two third bevel gears 58 are meshed with each other;

[0090] When the fourth gear 49 is driven to reverse by controlling the motor 48, the third drive shaft 56 is driven to rotate through the meshing effect between the fourth gear 49 and the second one-way gear 57. At this time, the first one-way gear 52 also rotates therewith, but the first drive shaft 50 does not rotate therewith. When the third drive shaft 56 rotates, the fourth driven shaft 39 is driven to rotate through the meshing effect between the two third bevel gears 58.

[0091] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in the field understand the principle of the above invention, the specific details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is to automatically control by a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in the field; the above only describes some exemplary embodiments of the present invention by way of explanation. Undoubtedly, for ordinary technicians in the field, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grab-type stratified mud mining device for a vortex well, comprising a immersed tube (1), a sinker (2) installed at the bottom end of the immersed tube (1), and a plurality of mining mechanisms installed inside the immersed tube (1), wherein the sinker (2) is a conical structure, and is characterized in that: A plurality of the collecting mechanisms are arranged in sequence along the height direction of the immersed tube (1), and the collecting mechanisms include: A partition plate (3) installed inside the immersed tube (1), and two partition plates are provided; A grab bucket (4) is arranged between two partitions (3), and two grab buckets are provided; A displacement assembly, which is arranged between the two partitions (3) and is used to drive the two grab buckets (4) to move synchronously; An adjustment component connected to the displacement component and used to drive the two grab buckets (4) to move closer to or away from each other; A tipping assembly connected to the displacement assembly and used to drive the grab bucket (4) to rotate; An opening and closing assembly is arranged between two partitions (3), the opening and closing assembly comprising an outlet (5) opened on the outer wall of the immersed tube (1) and a closing component for closing the outlet (5); A sample collecting cylinder (6) is rotatably connected to the top of one of the partitions (3), and a drainage port (7) is provided at the bottom of the sample collecting cylinder (6); A water removal component connected to the sample collecting tube (6) and used to remove water from the sludge entering the sample collecting tube (6); A mud discharge assembly, which is arranged between the two partitions (3) and is used to discharge the mud in the sample collecting cylinder (6); A driving assembly, which is installed at the bottom of another partition (3) and is used to drive the displacement assembly, the water removal assembly and the mud discharge assembly to operate respectively; The displacement assembly comprises a first driven shaft (8) rotatably connected to the inner wall of the immersed tube (1), a first reciprocating screw (9) fixedly sleeved on the outside of the first driven shaft (8), and a moving block (10) screwed on the outside of the first reciprocating screw (9); A slide groove is provided inside the moving block (10), two sliders (11) are slidably connected inside the slide groove, and linkage rods (12) are rotatably connected inside the two sliders (11), and one end of the two linkage rods (12) is fixedly connected to the outer wall of one side of the two grab buckets (4) respectively; A guide rod (13) is fixedly connected to the interior of the immersed tube (1), and the moving block (10) is also slidably sleeved on the exterior of the guide rod (13); The first driven shaft (8) is connected to the driving assembly; The adjustment assembly comprises a bidirectional screw (14) rotatably connected to the interior of the slide slot and a first gear (15) fixed to the bidirectional screw (14) and extending to one end outside the moving block (10); The two sliders (11) are both screwed onto the outside of the bidirectional screw (14); First racks (16) are fixedly connected to the inner walls of both sides of the immersed tube (1), and the two first racks (16) are matched with the first gear (15), wherein the tooth grooves of the two first racks (16) are arranged opposite to each other, one of the first racks (16) is located above the first gear (15), and the other first rack (16) is located below the first gear (15), so that when the first gear (15) is respectively meshed with the two first racks (16), the bidirectional screw 14 can be driven to rotate in different directions; The flip assembly comprises a second driven shaft (17) rotatably connected to the inner wall of the slide groove and two linkage components installed outside the second driven shaft (17), the two linkage components being respectively connected to two linkage rods (12); The linkage component comprises a sleeve (18) slidably sleeved on the outside of the second driven shaft (17) and two first bevel gears (19) respectively fixedly sleeved on the outside of the sleeve (18) and the outside of the linkage rod (12), the two first bevel gears (19) being meshed with each other, and a connecting block (20) is rotatably sleeved on the outside of the sleeve (18), the connecting block (20) being an L-shaped structure, and the connecting block (20) is also rotatably sleeved on the outside of the linkage rod (12); One end of the second driven shaft (17) extends to the outside of the moving block (10) and is fixedly connected to a second gear (21); a second rack (22) is fixedly connected to the inner wall of the immersed tube (1) away from the outlet (5); the second rack (22) is meshed with the second gear (21); When sampling is required, the immersed tube (1) is driven down through the external lifting mechanism to enter the specified depth inside the mud in the well, and then the electric push rod (24) is controlled to retract, driving the first closing plate (23) to move downward, so that the outlet (5) is opened, and then the first driven shaft (8) is driven to rotate through the driving component, and the first reciprocating screw (9) rotates synchronously therewith, driving the moving block (10) to move from the left end of the first reciprocating screw (9) to its right end. In this process, the two grab buckets (4) are driven to move synchronously to the right through the slider (11) and the linkage rod (12), extending out of the immersed tube (1), so that the grab buckets (4) are away from the immersed tube (1), preventing the subsequent grab buckets (4) from collecting mud near the outer wall of the immersed tube (1); When the moving block (10) moves to the right, the meshing action between the first gear (15) and the first rack (16) on the left side drives the bidirectional screw (14) to rotate, thereby driving the two sliders (11) to approach each other, thereby driving the two linkage rods (12) to approach each other, and the two grab buckets (4) to approach each other, so that the mouths of the two grab buckets (4) are relatively closed together, and the first gear (15) and the first rack (16) lose meshing therewith, so that when the grab bucket (4) moves out of the immersed tube (1), the grab bucket (4) is in a closed state and does not collect silt. When the first gear (15) moves to mesh with the first rack (16) on the right side, it drives the bidirectional screw (14) to reverse, thereby driving the two grab buckets (4) to move away from each other, and utilizing the fluidity of the silt to allow the silt to enter the two grab buckets (4) to carry out silt collection; After the sludge collection is completed, the moving block (10) is driven to move to the left. At this time, the first gear (15) is meshed with the first rack (16) on the right side, driving the bidirectional screw (14) to rotate forward, driving the two grab buckets (4) to approach each other and abut against each other, thereby sealing the collected sludge. After the grab bucket (4) enters the interior of the immersed tube (1), the first gear (15) is meshed with the first rack (16) on the left side, driving the bidirectional screw (14) to rotate reversely, and again driving the two grab buckets (4) to move away from each other, thereby causing the sludge inside the grab bucket (4) to fall into the interior of the sample collecting tube (6); When the moving block (10) is driven to move rightward, the meshing action between the second gear (21) and the second rack (22) drives the second driven shaft (17) to rotate forward, and the two sliding sleeves (18) outside the second driven shaft (17) rotate synchronously accordingly. The meshing action between the first bevel gear (19) outside the sliding sleeve (18) and the first bevel gear (19) outside the linkage rod (12) drives the linkage rod (12) to rotate 90°, thereby driving the grab bucket (4) to rotate 90°. The second gear (21) then loses meshing with the second rack (22), causing the two grab buckets (4) to rotate from their original openings facing downward to their openings facing each other, and before the two grab buckets (4) approach each other and abut against each other, the rotation is completed, so that the openings of the two grab buckets (4) can abut against each other; After the grab bucket (4) collects the sludge and returns to the inside of the immersed tube (1), the first gear (15) first meshes with the first rack (16) to move the two grab buckets (4) away from each other, providing rotation space for the subsequent rotation of the grab buckets (4), and then the second gear (21) meshes with the second rack (22) again, driving the second driven shaft (17) to reverse, thereby driving the two grab buckets (4) to rotate 90 degrees, so that the mouths of the two grab buckets (4) are both facing downward, and the sludge inside the grab buckets (4) is quickly discharged; When the linkage rod (12) moves, the connecting block (20) drives the sliding sleeve (18) to move synchronously, thereby allowing the two first bevel gears (19) to always remain in a meshing state.

2. The grab-type stratified mud mining device for a vortex well according to claim 1 is characterized in that: The sealing component comprises a first sealing plate (23) slidably connected to the inner wall of the immersed tube (1) and an electric push rod (24) installed on the top of one of the partitions (3), the first sealing plate (23) being used to seal the outlet (5), and the extended end of the electric push rod (24) being fixedly connected to the bottom of the first sealing plate (23); The sealing component further comprises a second sealing plate (25) fixedly connected to an outer wall of one side of the moving block (10) and two movable grooves (26) provided inside the second sealing plate (25). Two sealing blocks (27) are also slidably connected to the outer wall of one side of the second sealing plate (25). The sealing blocks (27) are used to seal the movable grooves (26). The linkage rod (12) is arranged to pass through the movable grooves (26), and the sealing blocks (27) are rotatably sleeved on the outside of the linkage rod (12). The second sealing plate (25) is also used to seal the outlet (5).

3. The grab-type stratified mud mining device for a vortex well according to claim 2 is characterized in that: The water removal assembly comprises a sample guide funnel (28) fixedly connected to the top of the sample collecting cylinder (6), a filter cylinder (29) fixedly connected to the bottom of the sample guide funnel (28), and a rotating component for driving the sample collecting cylinder (6) to rotate; The bottom of the filter cartridge (29) is a closed structure; The rotating component comprises a third driven shaft (30) rotatably connected between the two partitions (3), a third gear (31) fixedly sleeved on the outside of the third driven shaft (30), and a gear ring (32) fixedly sleeved on the outside of the sample collecting cylinder (6), wherein the third gear (31) meshes with the gear ring (32); The third driven shaft (30) is connected to the driving component.

4. The grab-type stratified mud mining device for a vortex well according to claim 3 is characterized in that: A drain pipe (33) is installed inside one of the partitions (3), the drain pipe (33) is connected to the drain port (7), and a solenoid valve (34) is installed outside the drain pipe (33); A main flow pipe (35) is installed inside the submerged tube (1) along its height direction, and the plurality of drainage pipes (33) are all connected to the main flow pipe (35), and the bottom end of the main flow pipe (35) extends to the inside of the submerged head (2); The countersunk head (2) is a hollow structure, a water outlet is provided at the bottom end of the countersunk head (2), and a sealing cover (36) is screwed inside the water outlet.

5. The grab-type stratified mud mining device for a vortex well according to claim 4 is characterized in that: The mud discharge assembly comprises a bracket (37) fixedly connected to the top of the partition (3), a mud guide cylinder (38) installed on the top of the bracket (37), and a fourth driven shaft (39) rotatably connected to the inner wall of the immersed tube (1); A piston (40) is installed inside the mud guide cylinder (38), a connecting rod (41) is fixedly connected to the outer wall of one side of the piston (40), and a linkage block (42) is fixedly connected to the other end of the connecting rod (41); A mud inlet pipe (43) is installed at one end of the mud guide cylinder (38), the other end of the mud inlet pipe (43) extends to the interior of the filter cylinder (29), a mud discharge pipe (44) is installed at the bottom of the mud guide cylinder (38), the other end of the mud discharge pipe (44) extends to the interior of the immersed tube (1) and is installed with a detachable sealing plug, a first one-way valve (45) is installed on the mud inlet pipe (43), a second one-way valve (46) is installed on the mud discharge pipe (44), and the linkage block (42) is slidably sleeved on the outside of the mud discharge pipe (44); A second reciprocating screw (47) is fixedly sleeved on the outside of the fourth driven shaft (39), and the linkage block (42) is also screwed on the outside of the second reciprocating screw (47); A scraper strip (59) is fixedly connected to the bottom of the mud inlet pipe (43), and the outer wall of the scraper strip (59) abuts against the inner wall of the filter cylinder (29); The fourth driven shaft (39) is connected to the drive assembly.

6. The grab-type stratified mud mining device for a vortex well according to claim 5, characterized in that: The driving assembly comprises a motor (48) mounted on the bottom of the partition (3), a fourth gear (49) fixedly sleeved on the outside of the output shaft of the motor (48), and a first driving shaft (50) and a second driving shaft (51) rotatably connected to the bottom of the partition (3); A first one-way gear (52) is installed outside the first drive shaft (50), and the first one-way gear (52) is meshed with a fourth gear (49); The outside of the second driving shaft (51) and the outside of the first driven shaft (8) are both fixedly sleeved with second bevel gears (55), and the two second bevel gears (55) are meshed with each other; The first drive shaft (50) and the second drive shaft (51) are connected in transmission via a first transmission member (53), and the first drive shaft (50) and the third driven shaft (30) are connected in transmission via a second transmission member (54).

7. The grab-type stratified mud mining device for a vortex well according to claim 6, characterized in that: The drive assembly further comprises a third drive shaft (56) rotatably connected between the two partitions (3) and a second one-way gear (57) mounted on the outside of the third drive shaft (56), the second one-way gear (57) being meshed with a fourth gear (49), and a third bevel gear (58) being fixedly sleeved on the outside of the third drive shaft (56) and the outside of the fourth driven shaft (39), and the two third bevel gears (58) being meshed with each other.

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