Soft sludge type deposition column sampling device and sampling method

Abstract

The invention provides a soft sludge type deposition column sampling device and a sampling method, and relates to the technical field of deposition column sampling devices.The soft sludge type deposition column sampling device comprises a fixed platform, a conical column is fixedly installed in the center of one side of the fixed platform, a telescopic supporting mechanism is arranged on the outer surface of a sampling sleeve column, and a sampling column is arranged in the sampling sleeve column; after equipment is placed at a designated position, a telescopic supporting mechanism is adjusted, the telescopic supporting mechanism can adjust the overall sludge contact area at the moment, the equipment is prevented from sinking into sludge during sampling, after adjustment is completed, a handle is rotated at the moment, and the handle can be matched with a first threaded rod to move downwards in a rectangular mode; meanwhile, when the first threaded rod moves downwards, the sampling column can rotate together with the first threaded rod, at the moment, a spiral blade arranged on the outer surface of the sampling column can gradually go deep into the sludge, the sludge can be conveniently cut by a shell tool bit, and deformation of a sample during sampling is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sediment column sampling devices, in particular to a soft sludge type sediment column sampling device and a sampling method. Background Art

[0002] Silt, as a common sedimentary material in water bodies, plays an important role in earth science and environmental science. It is a mixture of solid particles carried by water flow or liquid and deposited on the bottom of the water or liquid. The components of silt mainly include sand, soil, organic matter, etc. After these particles are suspended and deposited in the water body, they gradually settle to the bottom of the water to form a layer of silt-like sediment.

[0003] When sampling a soft silt-type sediment column, due to the presence of moisture inside the silt, the silt will separate from the sampling device when it is taken out after sampling is completed. At the same time, the existing sampling device generally presses the sampling tube into the silt when in use, causing the sample to deform. Therefore, we have made improvements to this and proposed a soft silt-type sediment column sampling device and sampling method. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a soft silt type sediment column sampling device and sampling method, which solves the problem that when sampling a soft silt type sediment column, due to the presence of moisture inside the silt, the silt will fall out of the sampling device when it is taken out after the sampling is completed. At the same time, the existing sampling device generally presses the sampling tube into the silt when in use, which causes the sampled sample to deform.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a soft silt type sediment column sampling device and sampling method, including a fixed platform, a conical column fixedly installed at the center of one side of the fixed platform, a sampling sleeve column is provided at the center of the side of the fixed platform away from the conical column, a telescopic support mechanism is provided on the outer surface of the sampling sleeve column, a sampling column is provided inside the sampling sleeve column, a shell cutter head is fixedly installed on the outer surface of one end of the sampling column, and a movable sealing mechanism is provided inside the shell cutter head.

[0006] Preferably, a second limiting platform is fixedly installed on one end of the sampling sleeve away from the fixed platform, a clamping handle is fixedly installed on both sides of the outer surface of the second limiting platform, and the first limiting platform is fixed on the side of the second limiting platform away from the sampling sleeve through a connecting column.

[0007] Preferably, a first threaded rod is movably installed at the center of the first limiting platform, a handle is welded and fixedly installed at one end of the first threaded rod, an end of the first threaded rod away from the handle extends to the interior of the sampling sleeve and a sampling column is fixedly installed thereon, and a spiral blade is provided on the outer surface of the sampling column.

[0008] Preferably, the telescopic support mechanism comprises a nut and a second threaded rod;

[0009] The second threaded rods are fixedly mounted on a side surface of the fixed platform in a circumferential manner, and a nut is interactively sleeved on the outer surface of each second threaded rod.

[0010] Preferably, a rectangular movable block is movably installed on the outer surface of the second threaded rod, and a plurality of C-shaped fixed blocks are circumferentially arranged on the outer surface of the rectangular movable block. A movable support rod is movably installed inside each of the C-shaped fixed blocks through a rotating axis.

[0011] Preferably, one end of each movable support rod away from the C-shaped fixed block is movably mounted on one side of the fixed seat through a rotating shaft, a sliding rod is fixedly mounted on both ends of one side of the fixed seat, one end of the sliding rod away from the fixed seat is movably mounted inside the rectangular suspended platform, one end of the rectangular suspended platform away from the sliding rod is fixedly mounted on the outer surface of the fixed platform, and a plurality of conical fixing spikes are provided on the side of the fixed seat away from the movable support rod.

[0012] Preferably, the movable sealing mechanism comprises an elliptical movable rod and a micro servo motor;

[0013] The micro servo motor is fixedly mounted inside the housing cutter head via a motor fixing seat, and an elliptical movable rod is fixedly mounted on the output shaft of the micro servo motor.

[0014] Preferably, an elliptical push rod is movably installed at both ends of one side of the elliptical movable rod through a rotating axis, and each end of the elliptical push rod away from the elliptical movable rod is movably installed with a connecting slide rod through a rotating axis, and the connecting slide rod is movably passed through the elliptical limit groove and fixed with a rectangular connecting end.

[0015] Preferably, a semicircular sealing plate is fixedly installed on one side of the rectangular connecting end, and the semicircular sealing plate is movably clamped inside the sampling column. The elliptical limiting groove is opened inside the limiting block, and the limiting block is fixedly installed inside the shell cutter head.

[0016] A method for sampling a soft silt sediment column comprises placing the device at a designated location and adjusting a telescopic support mechanism. The telescopic support mechanism can adjust the overall contact area with the silt, preventing the device from sinking into the silt during sampling. After the adjustment is completed, the handle is rotated, and the handle cooperates with a first threaded rod to move downward in a rectangular manner. Simultaneously, as the first threaded rod moves downward, the sampling column also rotates. The spiral blades provided on the outer surface of the sampling column gradually penetrate into the interior of the silt, making it easier for the shell blade to cut the silt, effectively avoiding deformation of the sample during sampling.

[0017] When the sampling is completed, the movable sealing mechanism at one end of the sampling column is started. At this time, the micro servo motor in the movable sealing mechanism, and the output shaft of the micro servo motor will drive the elliptical movable rod to rotate, and the two ends of the elliptical movable rod will respectively drive an elliptical push rod and a connecting slide rod to translate, and one end of the connecting slide rod can cooperate with the rectangular connecting end to drive the semicircular sealing plate to move, thereby sealing one end of the sampling column, effectively preventing the sample from escaping from the sampling column due to moisture.

[0018] The present invention provides a soft sludge sediment column sampling device and sampling method. It has the following beneficial effects:

[0019] First, after placing the device in the designated position, adjust the telescopic support mechanism. At this time, the telescopic support mechanism can adjust the overall contact area of ​​the silt to prevent the device from sinking into the silt during sampling. After the adjustment is completed, turn the handle. The handle will cooperate with the first threaded rod to move downward in a rectangular manner. At the same time, the sampling column will also rotate when the first threaded rod moves downward. At this time, the spiral blades provided on the outer surface of the sampling column will gradually penetrate into the interior of the silt, making it easier for the shell cutter head to cut the silt, effectively avoiding deformation of the sample during sampling.

[0020] When the sampling is completed, the movable sealing mechanism at one end of the sampling column is started. At this time, the micro servo motor in the movable sealing mechanism is driven, and the output shaft of the micro servo motor drives the elliptical movable rod to rotate, and the two ends of the elliptical movable rod respectively drive an elliptical push rod and a connecting slide rod to translate, and one end of the connecting slide rod can cooperate with the rectangular connecting end to drive the semicircular sealing plate to move, thereby sealing one end of the sampling column, effectively preventing the sample from escaping from the sampling column due to moisture;

[0021] After the device is placed in the designated position, press down the rectangular movable block in the telescopic support mechanism. The movable support rod will cooperate with the fixed seat and the slide rod to extend outward. When the extension is completed, turn the nut to fix it to prevent the device from tilting and failing to provide sufficient support during sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the front side of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above;

[0024] Figure 3 This is a schematic structural diagram of the front side of the sampling column in the present invention;

[0025] Figure 4 This is a schematic structural diagram of the front side of the housing cutter head in the present invention;

[0026] Figure 5 This is a schematic structural diagram of the side surface of the housing cutter head in the present invention;

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of the cross section at AA.

[0028] In the figure, 1. clamping handle; 2. sampling sleeve; 3. telescopic support mechanism; 301. conical fixed thorn; 302. rectangular suspended platform; 303. slide rod; 304. fixed seat; 305. movable support rod; 306. C-shaped fixed block; 307. nut; 308. second threaded rod; 309. rectangular movable block; 4. movable sealing mechanism; 401. semicircular sealing plate; 402. rectangular connecting end; 403. connecting slide rod; 404. elliptical push rod; 405. elliptical movable rod; 406. micro servo motor; 407. elliptical limiting groove; 408. limiting block; 5. handle; 6. first threaded rod; 7. first limiting platform; 8. second limiting platform; 9. conical column; 10. sampling column; 11. spiral blade; 12. shell cutter head; 13. fixed platform. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example:

[0031] like Figures 1 to 5As shown, an embodiment of the present invention provides a soft silt type sediment column sampling device and a sampling method, comprising a fixed platform 13, a tapered column 9 fixedly mounted at the center of one side of the fixed platform 13, a sampling sleeve 2 provided at the center of the side of the fixed platform 13 away from the tapered column 9, a telescopic support mechanism 3 provided on the outer surface of the sampling sleeve 2, a sampling column 10 provided inside the sampling sleeve 2, a shell cutter head 12 fixedly mounted on the outer surface of one end of the sampling column 10, and a movable sealing mechanism 4 provided inside the shell cutter head 12.

[0032] like Figures 1 to 5 As shown, the sampling sleeve 2 is fixedly mounted with a second limiting platform 8 at one end away from the fixed platform 13, and a clamping handle 1 is fixedly mounted on both sides of the outer surface of the second limiting platform 8. The second limiting platform 8 is fixed with a first limiting platform 7 on the side away from the sampling sleeve 2 through a connecting column. A first threaded rod 6 is movably mounted on the center of the first limiting platform 7, and a handle 5 is fixedly mounted on one end of the first threaded rod 6 by welding. The end of the first threaded rod 6 away from the handle 5 extends to the interior of the sampling sleeve 2 and is fixedly mounted with a sampling column 10. The outer surface of the sampling column 10 is provided with a There are spiral blades 11. After placing the device in the specified position, adjust the telescopic support mechanism 3. At this time, the telescopic support mechanism 3 can adjust the overall contact area of ​​the silt to prevent the device from sinking into the silt during sampling. After the adjustment is completed, turn the handle 5. At this time, the handle 5 will cooperate with the first threaded rod 6 to move downward in a rectangular shape. At the same time, the sampling column 10 will also rotate when the first threaded rod 6 moves downward. At this time, the spiral blades 11 set on the outer surface of the sampling column 10 will gradually penetrate into the interior of the silt, making it convenient for the shell cutter head 12 to cut the silt, effectively avoiding deformation of the sample during sampling.

[0033] like Figures 1 to 2 As shown, the telescopic support mechanism 3 includes a nut 307 and a second threaded rod 308;

[0034] The second threaded rod 308 is fixedly installed in a circular shape on one side surface of the fixed platform 13. A nut 307 is interactively sleeved on the outer surface of each second threaded rod 308. A rectangular movable block 309 is movably installed on the outer surface of the second threaded rod 308. The outer surface of the rectangular movable block 309 is circumferentially provided with a plurality of C-shaped fixed blocks 306. A movable support rod 305 is movably installed inside each C-shaped fixed block 306 through a rotating shaft. One end of each movable support rod 305 away from the C-shaped fixed block 306 is movably installed on one side of the fixed seat 304 through a rotating shaft. A sliding rod 303 is fixedly installed on both ends of one side of the fixed seat 304. One end of the slide rod 303 away from the fixed seat 304 is movably installed inside the rectangular floating platform 302, and one end of the rectangular floating platform 302 away from the slide rod 303 is fixedly installed on the outer surface of the fixed platform 13. A number of conical fixing spikes 301 are provided on the side of the fixed seat 304 away from the movable support rod 305. After the device is placed in the specified position, the rectangular movable block 309 in the telescopic support mechanism 3 is pressed downward. At this time, the movable support rod 305 will cooperate with the fixed seat 304 and the slide rod 303 to extend outward. When the extension is completed, the nut 307 is turned to fix it to prevent the device from tilting and failing to provide sufficient support during sampling.

[0035] like Figure 6 As shown, the movable sealing mechanism 4 includes an elliptical movable rod 405 and a micro servo motor 406;

[0036] The micro servo motor 406 is fixedly mounted inside the shell cutter head 12 through a motor fixing seat, and an elliptical movable rod 405 is fixedly mounted on the output shaft of the micro servo motor 406. An elliptical push rod 404 is movably mounted on both ends of one side of the elliptical movable rod 405 through a rotating shaft, and a connecting slide 403 is movably mounted on one end of each elliptical push rod 404 away from the elliptical movable rod 405 through a rotating shaft, and the connecting slide 403 is movably passed through the elliptical limiting groove 407 and fixedly mounted with a rectangular connecting end 402, and a semicircular sealing plate 401 is fixedly mounted on one side of the rectangular connecting end 402, and the semicircular sealing plate 401 is movably clamped in the interior of the sampling column 10. The shaped limit groove 407 is provided inside the limit block 408, and the limit block 408 is fixedly mounted inside the shell cutter head 12. After the sampling is completed, the movable sealing mechanism 4 at one end of the sampling column 10 is started. At this time, the micro servo motor 406 in the movable sealing mechanism 4, and the output shaft of the micro servo motor 406 will drive the elliptical movable rod 405 to rotate, and the two ends of the elliptical movable rod 405 will respectively drive an elliptical push rod 404 and the connecting slide rod 403 to translate, and one end of the connecting slide rod 403 can cooperate with the rectangular connecting end 402 to drive the semicircular sealing plate 401 to move, thereby sealing one end of the sampling column 10, effectively preventing the sample from escaping from the sampling column 10 due to moisture.

[0037] A method for sampling a soft silt sediment column is provided. After placing the device at a designated position, the telescopic support mechanism 3 is adjusted. The telescopic support mechanism 3 can adjust the overall contact area with the silt to prevent the device from sinking into the silt during sampling. After the adjustment is completed, the handle 5 is rotated. The handle 5 cooperates with the first threaded rod 6 to move downward in a rectangular shape. At the same time, the sampling column 10 also rotates when the first threaded rod 6 moves downward. At this time, the spiral blades 11 provided on the outer surface of the sampling column 10 gradually penetrate into the interior of the silt, making it easier for the shell cutter head 12 to cut the silt, effectively avoiding deformation of the sample during sampling.

[0038] When sampling is completed, the movable sealing mechanism 4 located at one end of the sampling column 10 is started. At this time, the micro servo motor 406 in the movable sealing mechanism 4, and the output shaft of the micro servo motor 406 will drive the elliptical movable rod 405 to rotate, and the two ends of the elliptical movable rod 405 will respectively drive an elliptical push rod 404 and the connecting slide rod 403 to translate, and one end of the connecting slide rod 403 can cooperate with the rectangular connecting end 402 to drive the semicircular sealing plate 401 to move, thereby sealing one end of the sampling column 10, effectively preventing the sample from escaping from the sampling column 10 due to moisture.

[0039] Working principle:

[0040] First, after placing the device at the designated position, adjust the telescopic support mechanism 3. At this time, the telescopic support mechanism 3 can adjust the overall contact area of ​​the silt to prevent the device from sinking into the silt during sampling. After the adjustment is completed, turn the handle 5. At this time, the handle 5 will cooperate with the first threaded rod 6 to move downward in a rectangular manner. At the same time, the sampling column 10 will also rotate when the first threaded rod 6 moves downward. At this time, the spiral blades 11 provided on the outer surface of the sampling column 10 will gradually penetrate into the interior of the silt, making it easier for the shell cutter head 12 to cut the silt, effectively avoiding deformation of the sample during sampling;

[0041] After the sampling is completed, the movable sealing mechanism 4 at one end of the sampling column 10 is started. At this time, the micro servo motor 406 in the movable sealing mechanism 4 is activated, and the output shaft of the micro servo motor 406 drives the elliptical movable rod 405 to rotate, and the two ends of the elliptical movable rod 405 respectively drive an elliptical push rod 404 and a connecting slide rod 403 to translate, and one end of the connecting slide rod 403 can cooperate with the rectangular connecting end 402 to drive the semicircular sealing plate 401 to move, thereby sealing one end of the sampling column 10, effectively preventing the sample from escaping from the sampling column 10 due to moisture.

[0042] After the device is placed in the designated position, press downward on the rectangular movable block 309 in the telescopic support mechanism 3. The movable support rod 305 will cooperate with the fixed seat 304 and the slide rod 303 to extend outward. After the extension is completed, turn the nut 307 to fix it to prevent the device from tilting and failing to provide sufficient support during sampling.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A soft sludge type sediment column sampling device, comprising a fixed platform (13), characterized in that: A conical column (9) is fixedly mounted at the center of one side of the fixed platform (13); a sampling sleeve column (2) is arranged at the center of one side of the fixed platform (13) away from the conical column (9); a telescopic support mechanism (3) is arranged on the outer surface of the sampling sleeve column (2); a sampling column (10) is arranged inside the sampling sleeve column (2); a shell blade (12) is fixedly mounted on the outer surface of one end of the sampling column (10); and a movable sealing mechanism (4) is arranged inside the shell blade head (12).

2. The soft sludge sediment column sampling device according to claim 1, characterized in that: A second limiting platform (8) is fixedly mounted on one end of the sampling sleeve (2) away from the fixed platform (13), a clamping handle (1) is fixedly mounted on both sides of the outer surface of the second limiting platform (8), and a first limiting platform (7) is fixed on the side of the second limiting platform (8) away from the sampling sleeve (2) via a connecting column.

3. The soft sludge sediment column sampling device according to claim 2, characterized in that: A first threaded rod (6) is movably mounted at the center of the first limiting platform (7), a handle (5) is fixedly mounted on one end of the first threaded rod (6), an end of the first threaded rod (6) away from the handle (5) extends to the interior of the sampling sleeve (2) where a sampling column (10) is fixedly mounted, and a spiral blade (11) is provided on the outer surface of the sampling column (10).

4. The soft sludge sediment column sampling device according to claim 1, characterized in that: The telescopic support mechanism (3) comprises a nut (307) and a second threaded rod (308); The second threaded rods (308) are fixedly mounted on a side surface of the fixed platform (13) in a circumferential manner, and a nut (307) is interactively sleeved on the outer surface of each second threaded rod (308).

5. The soft sludge type sediment column sampling device according to claim 4, characterized in that: A rectangular movable block (309) is movably mounted on the outer surface of the second threaded rod (308), and a plurality of C-shaped fixed blocks (306) are circumferentially arranged on the outer surface of the rectangular movable block (309), and a movable support rod (305) is movably mounted inside each of the C-shaped fixed blocks (306) via a rotating shaft.

6. The soft sludge sediment column sampling device according to claim 5, characterized in that: One end of each movable support rod (305) away from the C-shaped fixed block (306) is movably mounted on one side of the fixed seat (304) through a rotating shaft, and a sliding rod (303) is fixedly mounted on both ends of one side of the fixed seat (304). One end of the sliding rod (303) away from the fixed seat (304) is movably mounted inside the rectangular floating platform (302), and one end of the rectangular floating platform (302) away from the sliding rod (303) is fixedly mounted on the outer surface of the fixed platform (13). A plurality of conical fixing spikes (301) are provided on one side of the fixed seat (304) away from the movable support rod (305).

7. The soft sludge sediment column sampling device according to claim 1, characterized in that: The movable sealing mechanism (4) comprises an elliptical movable rod (405) and a micro servo motor (406); The micro servo motor (406) is fixedly mounted inside the housing cutter head (12) via a motor fixing seat, and an elliptical movable rod (405) is fixedly mounted on the output shaft of the micro servo motor (406).

8. The soft sludge sediment column sampling device according to claim 7, characterized in that: An elliptical push rod (404) is movably mounted on both ends of one side of the elliptical movable rod (405) via a rotating shaft. An end of each elliptical push rod (404) away from the elliptical movable rod (405) is movably mounted on a connecting slide rod (403) via a rotating shaft. The connecting slide rod (403) movably passes through the elliptical limiting groove (407) and is fixedly mounted with a rectangular connecting end (402).

9. The soft sludge sediment column sampling device and sampling method according to claim 8, characterized in that: A semicircular sealing plate (401) is fixedly mounted on one side of the rectangular connecting end (402), and the semicircular sealing plate (401) is movably clamped inside the sampling column (10). The elliptical limiting groove (407) is opened inside the limiting block (408), and the limiting block (408) is fixedly mounted inside the shell blade (12).

10. The method for sampling a soft sludge sediment column according to claim 8, characterized in that: After placing the device at a designated position, the telescopic support mechanism (3) is adjusted. At this time, the telescopic support mechanism (3) can adjust the overall contact area of ​​the silt to prevent the device from sinking into the silt during sampling. After the adjustment is completed, the handle (5) is rotated. At this time, the handle (5) will cooperate with the first threaded rod (6) to move downward in a rectangular shape. At the same time, when the first threaded rod (6) moves downward, the sampling column (10) will also rotate. At this time, the spiral blades (11) provided on the outer surface of the sampling column (10) will gradually penetrate into the interior of the silt, making it easier for the shell cutter head (12) to cut the silt, effectively avoiding the deformation of the sample during sampling. After the sampling is completed, the movable sealing mechanism (4) at one end of the sampling column (10) is started. At this time, the micro servo motor (406) in the movable sealing mechanism (4) is started, and the output shaft of the micro servo motor (406) drives the elliptical movable rod (405) to rotate, and the two ends of the elliptical movable rod (405) respectively drive an elliptical push rod (404) and a connecting slide rod (403) to translate, and one end of the connecting slide rod (403) can cooperate with the rectangular connecting end (402) to drive the semicircular sealing plate (401) to move, thereby sealing one end of the sampling column (10), effectively preventing the sample from escaping from the sampling column (10) due to moisture.

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