CN108168947B - Carousel formula deposit sampling device - Google Patents
Carousel formula deposit sampling device Download PDFInfo
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- CN108168947B CN108168947B CN201810046719.7A CN201810046719A CN108168947B CN 108168947 B CN108168947 B CN 108168947B CN 201810046719 A CN201810046719 A CN 201810046719A CN 108168947 B CN108168947 B CN 108168947B
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- 238000005070 sampling Methods 0.000 title claims abstract description 253
- 239000013049 sediment Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000003247 decreasing effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 51
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 208000033999 Device damage Diseases 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a sampler, in particular to a rotary disc type sediment sampling device which comprises a sampling top cover, an upper sampling tube, a lower sampling tube, a sampler, an outer sleeve and a rotating rod, wherein the sampling top cover is arranged at the upper end of the upper sampling tube, the lower end of the upper sampling tube is connected with the upper end of the lower sampling tube through threads, the lower end of the lower sampling tube is connected with the upper end of the sampler through threads, the upper end of the outer sleeve is sleeved outside the upper sampling tube and can rotate around the upper sampling tube, the lower end of the outer sleeve is in clearance fit with the sampler and can rotate around the sampler, and the rotating rod is connected with the sampler after passing through the outer sleeve. The beneficial effects are that: the invention can meet the requirements of different sampling depths by increasing or decreasing the number of the lower sampling cylinders according to the sampling depth requirements; the bottom of the sampling device can be tightly sealed in the process of extracting the sediment, so that the loss of a loose sediment sample can be effectively prevented, and the collected sample can be ensured to better keep the original property.
Description
Technical Field
The invention relates to a sampler, in particular to a rotary disc type sediment sampling device.
Background
Based on the importance of revealing the needs in terms of environmental changes, deposition processes, contaminant migration, etc., sampling of loose deposits often requires maintaining the original characteristics of the deposit as good as possible. At present, sediment samplers are mainly divided into two types, namely a grab bucket type and a column type, the grab bucket type sampler has a simple structure, but has large disturbance on a sample, limited sampling depth and low tightness, and is generally used for collecting surface samples of sediment; the column sampler then takes a sample of the sediment by inserting it vertically into the sediment. The general columnar sampler has a complex structure, a large volume, an external power supply and high price; part of the cylindrical sampler with simple structure is generally lack of an effective sediment sealing device at the bottom of the sampling tube, so that loose sediment has a more prominent problem of sample loss when the sampler is pulled out.
Disclosure of Invention
The invention aims to solve the problems, and provides a rotary disc type sediment sampling device which is simple in structure and convenient to use, the number of lower sampling cylinders can be increased or decreased according to the sampling depth, the bottom of the sampling device can be sealed in the sediment extraction process, the loss of loose sediment samples can be effectively prevented, and the collected samples can better keep the original properties. The technical scheme adopted by the method is as follows:
the rotary disc type sediment sampling device comprises a sampling top cover, an upper sampling tube, a lower sampling tube, a sampler, an outer sleeve and a rotating rod, wherein the sampling top cover is arranged at the upper end of the upper sampling tube, the lower end of the upper sampling tube is connected with the upper end of the lower sampling tube through threads, the lower end of the lower sampling tube is connected with the upper end of the sampler through threads, the upper end of the outer sleeve is sleeved outside the upper sampling tube and can rotate around the upper sampling tube, the lower end of the outer sleeve is in clearance fit with the sampler and can rotate around the sampler, and the rotating rod is connected with the sampler after passing through the outer sleeve;
the sampling top cover comprises a top cover body, an annular groove, a cylindrical boss, arc-shaped clamping heads, handles and handle sleeves, wherein four handles are uniformly arranged on the outer cylindrical surface of the top cover body, each handle is provided with one handle sleeve, so that the holding force can be improved, the cylindrical boss is arranged in the middle of the lower surface of the top cover body, the annular groove coaxial with the cylindrical boss is formed in the outer portion of the cylindrical boss, and three arc-shaped clamping heads are uniformly arranged in the annular groove;
the lower end of the upper sampling tube is provided with an internal thread, the upper sampling tube comprises an upper sampling tube body, an arc clamping groove, an ON positioning hole and an OFF positioning hole, the upper end of the upper sampling tube body is uniformly provided with three arc clamping grooves matched with the arc clamping head, so that relative rotation between the upper sampling tube and a sampling top cover can be avoided, the ON positioning hole and the OFF positioning hole are arranged ON the outer cylindrical surface of the upper sampling tube body and are at the same horizontal height, the ON positioning hole and the OFF positioning hole are blind holes, collected samples in the upper sampling tube can be prevented from entering the ON positioning hole and the OFF positioning hole, and the blockage of the ON positioning hole, the OFF positioning hole and the loss of the samples can be avoided;
the lower sampling tube is of a hollow revolution body structure, the upper end of the lower sampling tube is provided with external threads, and the lower end of the lower sampling tube is provided with internal threads;
the sampler comprises a sampling shell, a sampling rotary table, a sampling connecting rod, a sealing bottom plate and a connecting pin, wherein the sampling rotary table is installed in an annular installation groove of the sampling shell and can rotate in the annular installation groove, the sampling connecting rod is rotatably installed on a rotary table cylinder of the sampling rotary table, one end of the sealing bottom plate is connected with the sampling connecting rod through the connecting pin, the other end of the sealing bottom plate is rotatably installed on a positioning cylinder of the sampling shell, and the connecting pin penetrates through a cylindrical counter bore of the sampling connecting rod and a connecting pin installation hole of the sealing bottom plate to connect the sampling connecting rod with the sealing bottom plate; when the mounting hole of the outer sleeve is aligned with the ON positioning hole of the upper sampling tube, the sampling device is in a completely opened state, at the moment, six sampling connecting rods are attached to the outer wall of the annular mounting groove, and six bottom sealing plates are in regular hexagon openings; when the mounting hole of the outer sleeve is aligned with the OFF positioning hole of the upper sampling tube, the sampling device is in a completely closed state, at the moment, the six sampling connecting rods are far away from the outer wall of the annular mounting groove, and the six sealing bottom plates are closed complete discs;
the outer sleeve comprises an outer cylinder, a cylindrical through hole, a positioning plate, a mounting hole, an annular plate and an annular clamping groove, wherein the annular plate is fixedly connected to the upper surface of the outer cylinder, the lower end of the outer cylinder is provided with an annular clamping groove which is in clearance fit with an annular clamping head of a sampling shell, six cylindrical through holes are uniformly formed in the annular plate, the positioning plate is fixedly connected to the upper surface of the annular plate, the positioning plate is provided with a mounting hole, the mounting hole is a through hole and is at the same horizontal height with an ON positioning hole and an OFF positioning hole, the diameters of the mounting hole and the ON positioning hole are equal, and the inner surface of the positioning plate is a cylindrical surface, and the diameter of the positioning plate is equal to the inner diameter of the annular plate.
The utility model provides a sampling shell, including connector, annular body, taper bottom, annular chuck, arc recess, annular mounting groove, arc crashproof groove, back cover locating slot, positioning cylinder, the upper end of annular body has linked firmly a connector and an annular chuck, and the connector is coaxial with annular chuck, the connector upper end is equipped with the external screw thread, the lower extreme of annular body links firmly together with the taper bottom, the taper bottom is the hollow solid of revolution structure that the cross section is isosceles triangle, can reduce the sampling resistance, improves sampling efficiency, the inside annular mounting groove that is equipped with of annular body, evenly be provided with six arc crashproof grooves on the outer wall of annular mounting groove, can prevent that sampling device's back cover from producing the size interference with the annular mounting groove inner wall of sampling shell and leading to the back cover to be opened completely, avoid causing sampling device's damage and the reduction of sampling efficiency, be provided with a back cover locating slot on the inner wall of annular mounting groove, be close to inner wall department evenly is provided with six positioning cylinder in the annular mounting groove, the annular body upper surface is close to six arc recesses between connector and the annular uniformly provided with.
The rotary sampling disk comprises a disk body, a disk blind hole and a disk cylinder, wherein the outer diameter of the disk body is equal to that of the annular mounting groove, six disk blind holes and the disk cylinder are uniformly arranged on the disk body, the disk blind hole is in interference fit with the lower end of the rotating rod, the diameter of the disk blind hole is equal to that of the lower end of the rotating rod, the disk cylinder is in clearance fit with the connecting rod through hole, and the diameter of the disk cylinder is equal to that of the connecting rod through hole.
The sampling connecting rod comprises a connecting rod body, a connecting rod through hole, an arc connecting plate and a cylindrical counter bore, wherein the connecting rod body is provided with a connecting rod through hole for installing a turntable cylinder, the turntable cylinder can rotate in the connecting rod through hole, the arc connecting plate is fixedly connected with the connecting rod body, the free end of the arc connecting plate is provided with the cylindrical counter bore, and the distance between the two arc connecting plates is equal to the thickness of the sealing bottom plate.
The bottom sealing plate comprises a bottom sealing plate body, connecting pin mounting holes and positioning cylinder mounting holes, wherein the bottom sealing plate body is a sixth cylinder, one connecting pin mounting hole and one positioning cylinder mounting hole are formed in the sixth cylinder, the connecting pin mounting holes and the positioning cylinder mounting holes are symmetrically arranged on the bottom sealing plate body, and the connecting pin mounting holes and the positioning cylinder mounting holes are cylindrical through holes.
The invention has the following advantages:
1. the invention can meet the requirements of different sampling depths by increasing or decreasing the number of the lower sampling cylinders according to the sampling depth requirements; the bottom of the sampling device can be tightly sealed in the process of extracting the sediment, so that the loss of a loose sediment sample can be effectively prevented, and the collected sample can be ensured to better keep the original property.
2. The sampling shell is provided with the conical bottom, so that the sampling resistance can be reduced, and the sampling efficiency can be improved; the arc anti-collision groove that sets up on the outer wall of annular mounting groove can prevent that sampling device's back cover board from producing the size interference with the annular mounting groove inner wall of sample casing and leading to the back cover board to open completely at the in-process of opening, avoids causing sampling device's damage and the reduction of sampling efficiency.
3. The invention has simple structure and convenient operation, has two positioning holes of an ON positioning hole and an OFF positioning hole, and can ensure safe and reliable operation when the sampling device is in a fully opened and fully closed position.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1: the overall structure of the invention is schematically shown;
fig. 2: the whole structure is cut through after the bottom is sealed;
fig. 3: an enlarged view of the upper end of fig. 2 of the present invention;
fig. 4: an enlarged view of the lower end of fig. 2 of the present invention;
fig. 5: the structure of the sampler after bottom sealing is schematically shown;
fig. 6: the invention discloses a structure schematic diagram of a sampler before bottom sealing;
fig. 7: a cross-sectional view of section a of fig. 6 of the present invention;
fig. 8: the internal structure of the sampler after bottom sealing is schematically shown;
fig. 9: the invention discloses an internal structure schematic diagram of a front sampler of a back cover;
fig. 10: a cross-sectional view of the sampling cap of the present invention;
fig. 11: the structure of the upper sampling tube is schematically shown;
fig. 12: the invention is a cross-sectional view of the down sampling tube
Fig. 13: a cross-sectional view of the sampling housing of the present invention;
fig. 14: another cross-sectional view of the sampling housing of the present invention;
fig. 15: the structure schematic diagram of the sampling turntable of the invention;
fig. 16: the structure of the sampling connecting rod is schematically shown;
fig. 17: the structure schematic diagram of the sealing bottom plate is shown in the invention;
fig. 18: the outer sleeve of the invention is schematically structured.
Symbol description:
1. sampling cap, 2, upper sampling tube, 3, lower sampling tube, 4, sampler, 5, outer sleeve, 6, rotating rod, 11, cap body, 12, annular groove, 13, cylindrical boss, 14, arc chuck, 15, handle, 16, handle sleeve, 21, upper sampling tube body, 22, arc chuck, 23, ON positioning hole, 24, OFF positioning hole, 41, sampling housing, 42, sampling carousel, 43, sampling link, 44, back plate, 45, connecting pin, 51, outer cylinder, 52, cylindrical through hole, 53, positioning plate, 54, mounting hole, 55, annular plate, 56, annular chuck, 411, connector, 412, annular body, 413, conical bottom, 414, annular chuck, 415, arc groove, 416, annular mounting groove, 417, arc anti-collision groove, 418, back plate positioning groove, 419, positioning cylinder, 421, carousel body, 422, carousel blind hole, 423, carousel cylinder, 431, connecting rod body, 432, connecting rod through hole, 433, arc connecting plate, cylindrical bottom plate, 441, back plate, 434, back plate connecting body, 443, cylindrical positioning hole, mounting hole, 442, mounting hole.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-4, a rotary disc type sediment sampling device comprises a sampling top cover 1, an upper sampling tube 2, a lower sampling tube 3, a sampler 4, an outer sleeve 5 and a rotating rod 6, wherein the sampling top cover 1 is arranged at the upper end of the upper sampling tube 2, the lower end of the upper sampling tube 2 is connected with the upper end of the lower sampling tube 3 through threads, the lower end of the lower sampling tube 3 is connected with the upper end of the sampler 4 through threads, the upper end of the outer sleeve 5 is sleeved outside the upper sampling tube 2 and can rotate around the upper sampling tube 2, the lower end of the outer sleeve 5 is in clearance fit with the sampler 4 and can rotate around the sampler 4, and the rotating rod 6 is connected with the sampler 4 after passing through the outer sleeve 5.
As shown in fig. 10, the sampling top cover 1 includes a top cover body 11, an annular groove 12, a cylindrical boss 13, an arc chuck 14, a handle 15, and a handle sleeve 16, four handles 15 are uniformly disposed on the outer cylindrical surface of the top cover body 11, a handle sleeve 16 is disposed on each handle 15, so as to improve the holding force, a cylindrical boss 13 is disposed in the middle of the lower surface of the top cover body 11, an annular groove 12 coaxial with the cylindrical boss 13 is disposed outside the cylindrical boss 13, and three arc chucks 14 are uniformly disposed in the annular groove 12.
As shown in fig. 11, the lower end of the upper sampling tube 2 is provided with an internal thread, the upper sampling tube 2 comprises an upper sampling tube body 21, an arc clamping groove 22, an ON positioning hole 23 and an OFF positioning hole 24, the upper end of the upper sampling tube body 21 is uniformly provided with three arc clamping grooves 22 matched with the arc clamping head 14, relative rotation between the upper sampling tube 2 and the sampling top cover 1 can be avoided, the ON positioning hole 23 and the OFF positioning hole 24 are all arranged ON the outer cylindrical surface of the upper sampling tube body 21 and are at the same level, the ON positioning hole 23 and the OFF positioning hole 24 are blind holes, collected samples in the upper sampling tube 2 can be prevented from entering the ON positioning hole 23 and the OFF positioning hole 24, and blocking of the ON positioning hole 23, the OFF positioning hole 24 and loss of the samples can be avoided.
As shown in fig. 12, the lower sampling tube 3 is a hollow revolution body structure, the upper end of which is provided with external threads, and the lower end of which is provided with internal threads.
As shown in fig. 5-9 and 13-17, the sampler 4 includes a sampling housing 41, a sampling turntable 42, a sampling link 43, a back cover 44, and a connecting pin 45; the sampling shell 41 comprises a connector 411, an annular body 412, a conical bottom 413, an annular chuck 414, an arc-shaped groove 415, an annular mounting groove 416, an arc-shaped anti-collision groove 417, a bottom sealing plate positioning groove 418 and a positioning cylinder 419, wherein the connector 411 and the annular chuck 414 are fixedly connected to the upper end of the annular body 412, the connector 411 is coaxial with the annular chuck 414, the upper end of the connector 411 is provided with external threads, the lower end of the annular body 412 is fixedly connected with the conical bottom 413, the conical bottom 413 is of a hollow revolution structure with an isosceles triangle cross section, so that the sampling resistance can be reduced, the sampling efficiency is improved, the annular mounting groove 416 is formed in the annular body 412, six arc-shaped anti-collision grooves 417 are uniformly formed in the outer wall of the annular mounting groove 416, the bottom sealing plate 44 of the sampling device can be prevented from being interfered with the inner wall of the annular mounting groove 416 of the sampling shell 41 in a size manner in the opening process, the damage to the sampling device and the reduction of the sampling efficiency are avoided, the bottom sealing plate positioning groove 418 is formed in the inner wall of the annular mounting groove 416, the six annular mounting grooves 412 are uniformly arranged between the six annular grooves 414 and the arc-shaped groove 415 and the arc-shaped groove 419;
the sampling turntable 42 comprises a turntable body 421, a turntable blind hole 422 and a turntable cylinder 423, wherein the outer diameter of the turntable body 421 is equal to the outer diameter of the annular mounting groove 416, six turntable blind holes 422 and turntable cylinders 423 are uniformly arranged on the turntable body 421, the turntable blind holes 422 are in interference fit with the lower end of the rotating rod 6, the diameter of the turntable blind holes is equal to the diameter of the lower end of the rotating rod 6, the turntable cylinders 423 are in clearance fit with the connecting rod through holes 432, and the diameter of the turntable cylinders 423 is equal to the diameter of the connecting rod through holes 432;
the sampling connecting rod 43 comprises a connecting rod body 431, a connecting rod through hole 432, an arc connecting plate 433 and a cylindrical counter bore 434, wherein the connecting rod body 431 is provided with the connecting rod through hole 432 for installing the rotary disc cylinder 423, the rotary disc cylinder 423 can rotate in the connecting rod through hole 432, the arc connecting plate 433 is fixedly connected with the connecting rod body 431, the free end of the arc connecting plate 433 is provided with the cylindrical counter bore 434, and the distance between the two arc connecting plates 433 is equal to the thickness of the bottom sealing plate 44;
the bottom cover 44 includes a bottom cover body 441, a connecting pin mounting hole 442, and a positioning cylinder mounting hole 443, wherein the bottom cover body 441 is a sixth cylinder, a connecting pin mounting hole 442 and a positioning cylinder mounting hole 443 are disposed on the bottom cover body 441, the connecting pin mounting hole 442 and the positioning cylinder mounting hole 443 are symmetrically disposed on the bottom cover body 441, and the connecting pin mounting hole 442 and the positioning cylinder mounting hole 443 are cylindrical through holes;
the sampling rotary table 42 is installed in the annular installation groove 416 of the sampling shell 41 and can rotate in the annular installation groove 416, the sampling connecting rod 43 is rotatably installed on the rotary table cylinder 423 of the sampling rotary table 42, one end of the bottom sealing plate 44 is connected with the sampling connecting rod 43 through a connecting pin 45, the other end of the bottom sealing plate is rotatably installed on the positioning cylinder 419 of the sampling shell 41, and the connecting pin 45 passes through the cylindrical counter bore 434 of the sampling connecting rod 43 and the connecting pin installation hole 442 of the bottom sealing plate 44 to connect the sampling connecting rod 43 with the bottom sealing plate 44; when the mounting hole 54 of the outer sleeve 5 is aligned with the ON positioning hole 23 of the upper sampling tube 2, the sampling device is in a fully opened state, at this time, six sampling connecting rods 43 are attached to the outer wall of the annular mounting groove 416, and six bottom sealing plates 44 are in regular hexagonal openings; when the mounting hole 54 of the outer sleeve 5 is aligned with the OFF-locating hole 24 of the upper sampling tube 2, the sampling device is in a fully closed state, and the six sampling links 43 are far away from the outer wall of the annular mounting groove 416, and the six bottom sealing plates 44 are in a closed complete disc.
As shown in fig. 18, the outer sleeve 5 includes an outer cylinder 51, a cylindrical through hole 52, a positioning plate 53, a mounting hole 54, an annular plate 55, and an annular clamping groove 56, wherein the annular plate 55 is fixedly connected to the upper surface of the outer cylinder 51, the lower end of the outer cylinder 51 is provided with an annular clamping groove 56 which is in clearance fit with an annular clamping head 414 of the sampling shell 41, six cylindrical through holes 52 are uniformly formed in the annular plate 55, the positioning plate 53 is fixedly connected to the upper surface of the annular plate 55, a mounting hole 54 is formed in the positioning plate 53, the mounting hole 54 is a through hole and is located at the same level with the ON positioning hole 23 and the OFF positioning hole 24, the mounting hole 54 is equal to the ON positioning hole 23 and the OFF positioning hole 24 in diameter, and the inner surface of the positioning plate 53 is a cylindrical surface with the diameter equal to the inner diameter of the annular plate 55.
The invention is used when: after aligning the sampling device to the sampling position, rotating the outer sleeve 5, screwing a screw when the mounting hole 54 is aligned with the ON positioning hole 23 of the upper sampling tube 2, so that the sampling device is in a completely opened state, and at the moment, six sampling connecting rods 43 are attached to the outer wall of the annular mounting groove 416, and six bottom sealing plates 44 are in regular hexagon openings; the sampling device is enabled to reach the sampling depth by applying pressure to the sampling top cover 1, and at the moment, the collected samples sequentially enter the sampler 4, the lower sampling tube 3 and the upper sampling tube 2 through the regular hexagonal opening at the lower end of the sampling device; then the outer sleeve 5 is rotated, the rotating rod 6 arranged on the outer sleeve 5 passes through the arc-shaped groove 415 to drive the sampling turntable 42 connected with the rotating rod to rotate in the annular mounting groove 416, the sampling turntable 42 drives the sealing bottom plate 44 to rotate around the positioning cylinder 419 through the sampling connecting rods 43, when the outer sleeve 5 rotates to the mounting hole 54 to align with the OFF positioning hole 24 of the upper sampling tube 2, a screw is screwed on, so that the sampling device is in a completely closed state, at the moment, the six sampling connecting rods 43 are far away from the outer wall of the annular mounting groove 416, and the six sealing bottom plates 44 are in a closed complete disc; finally, the sampling device is taken out from the stratum, and the sampling device is cleaned after the samples collected by the upper sampling tube 2 and the lower sampling tube 3 are taken out.
The invention can meet the requirements of different sampling depths by increasing and decreasing the number of the lower sampling cylinders 3 according to the sampling depth requirements; the bottom of the sampling device can be tightly sealed in the process of extracting the sediment, so that the loss of a loose sediment sample can be effectively prevented, and the collected sample can be ensured to better keep the original property; the sampling shell 41 is provided with the conical bottom 413, so that the sampling resistance can be reduced, and the sampling efficiency can be improved; the arc anti-collision groove 417 arranged on the outer wall of the annular mounting groove 416 can prevent the bottom sealing plate 44 of the sampling device from being interfered with the inner wall of the annular mounting groove 416 of the sampling shell 41 in the opening process to cause the bottom sealing plate 44 to be unable to be completely opened, thereby avoiding the damage of the sampling device and the reduction of the sampling efficiency; the invention has simple structure and convenient operation, and has two positioning holes of the ON positioning hole 23 and the OFF positioning hole 24, thereby ensuring safe and reliable operation when the sampling device is in the fully opened and fully closed positions.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (1)
1. A rotary disk type sediment sampling device, characterized in that: the device comprises a sampling top cover, an upper sampling tube, a lower sampling tube, a sampler, an outer sleeve and a rotating rod, wherein the sampling top cover is arranged at the upper end of the upper sampling tube, the lower end of the upper sampling tube is connected with the upper end of the lower sampling tube through threads, the lower end of the lower sampling tube is connected with the upper end of the sampler through threads, the upper end of the outer sleeve is sleeved outside the upper sampling tube and can rotate around the upper sampling tube, the lower end of the outer sleeve is in clearance fit with the sampler and can rotate around the sampler, and the rotating rod passes through the outer sleeve and is connected with the sampler;
the sampling top cover comprises a top cover body, an annular groove, a cylindrical boss, arc-shaped clamping heads, handles and handle sleeves, wherein four handles are uniformly arranged on the outer cylindrical surface of the top cover body, each handle is provided with one handle sleeve so as to improve holding force, the cylindrical boss is arranged in the middle of the lower surface of the top cover body, the annular groove coaxial with the cylindrical boss is arranged outside the cylindrical boss, and three arc-shaped clamping heads are uniformly arranged in the annular groove;
the lower end OF the upper sampling tube is provided with an internal thread, the upper sampling tube comprises an upper sampling tube body, an arc clamping groove, an ON positioning hole and an OFF positioning hole, the upper end OF the upper sampling tube body is uniformly provided with three arc clamping grooves matched with arc clamping heads so as to avoid relative rotation between the upper sampling tube and a sampling top cover, the ON positioning hole and the OF positioning hole are all arranged ON the outer cylindrical surface OF the upper sampling tube body and are at the same horizontal height, and the ON positioning hole and the OFF positioning hole are blind holes so as to prevent collected samples in the upper sampling tube from entering the ON positioning hole and the OF positioning hole and avoid blocking the ON positioning hole and the OFF positioning hole and the loss OF the samples;
the lower sampling tube is of a hollow revolution body structure, the upper end of the lower sampling tube is provided with external threads, and the lower end of the lower sampling tube is provided with internal threads; the turntable type sediment sampling device meets the requirements of different sampling depths by increasing or decreasing the number of the lower sampling cylinders;
the sampler comprises a sampling shell, a sampling rotary table, a sampling connecting rod, a sealing bottom plate and a connecting pin, wherein the sampling rotary table is arranged in an annular mounting groove of the sampling shell and can rotate in the annular mounting groove, the sampling connecting rod is rotatably arranged ON a rotary table cylinder of the sampling rotary table, one end of the sealing bottom plate is connected with the sampling connecting rod through the connecting pin, the other end of the sealing bottom plate is rotatably arranged ON a positioning cylinder of the sampling shell, the connecting pin penetrates through a cylindrical counter bore of the sampling connecting rod and a connecting pin mounting hole of the sealing bottom plate to connect the sampling connecting rod with the sealing bottom plate, when an ON positioning hole of an upper sampling tube is aligned with a mounting hole of an outer sleeve, the sampling device is in a completely opened state, six sampling connecting rods are attached to the outer wall of the annular mounting groove, and six sealing bottom plates are in regular hexagon openings; when the mounting hole of the outer sleeve is aligned with the OFF positioning hole of the upper sampling tube, the sampling device is in a completely closed state, at the moment, the six sampling connecting rods are far away from the outer wall of the annular mounting groove, and the six sealing bottom plates are closed complete discs;
the outer sleeve comprises an outer cylinder, a cylindrical through hole, a positioning plate, a mounting hole, an annular plate and an annular clamping groove, wherein the annular plate is fixedly connected to the upper surface of the outer cylinder, the lower end of the outer cylinder is provided with the annular clamping groove which is in clearance fit with the annular clamping head of the sampling shell, six cylindrical through holes are uniformly formed in the annular plate, the positioning plate is fixedly connected to the upper surface of the annular plate, the positioning plate is provided with the mounting hole, the mounting hole is in the same horizontal height with the ON positioning hole and the OFF positioning hole, the diameters of the mounting hole are equal to those of the ON positioning hole and the OFF positioning hole, and the inner surface of the positioning plate is a cylindrical surface with the diameter equal to the inner diameter of the annular plate;
the sampling shell comprises a connector, an annular body, a conical bottom, an annular clamping head, an arc-shaped groove, an annular mounting groove, an arc-shaped anti-collision groove, a bottom sealing plate positioning groove and a positioning cylinder, wherein the connector and the annular clamping head are fixedly connected to the upper end of the annular body, the connector and the annular clamping head are coaxial, the upper end of the connector is provided with external threads, the lower end of the annular body is fixedly connected with the conical bottom, the conical bottom is of a hollow revolving body structure with an isosceles right triangle in cross section, the annular body is internally provided with the annular mounting groove, six arc-shaped anti-collision grooves are uniformly formed in the outer wall of the annular mounting groove so as to prevent the bottom sealing plate of the sampling device from interfering with the inner wall of the annular mounting groove of the sampling shell in size in the opening process, the inner wall of the annular mounting groove is provided with the bottom sealing plate positioning groove, six positioning cylinders are uniformly arranged in the annular mounting groove close to the inner wall, and six arc-shaped grooves are uniformly arranged on the upper surface of the annular body close to the annular clamping head between the connector and the annular clamping head;
the sampling turntable comprises a turntable body, turntable blind holes and a turntable cylinder, wherein the outer diameter of the turntable body is equal to that of the annular mounting groove, six turntable blind holes and the turntable cylinder are uniformly arranged on the turntable body, the turntable blind holes are in interference fit with the lower end of the rotating rod, the diameter of the turntable blind holes is equal to that of the lower end of the rotating rod, the turntable cylinder is in clearance fit with the connecting rod through hole, and the diameter of the turntable cylinder is equal to that of the connecting rod through hole;
the sampling connecting rod comprises a connecting rod body, a connecting rod through hole, an arc connecting plate and a cylindrical counter bore, wherein the connecting rod body is provided with a connecting rod through hole for installing a turntable cylinder, the turntable cylinder can rotate in the connecting rod through hole, the arc connecting plate is fixedly connected with the connecting rod body, the free end of the arc connecting plate is provided with the cylindrical counter bore, and the distance between the two arc connecting plates is equal to the thickness of the sealing bottom plate;
the bottom sealing plate comprises a bottom sealing plate body, connecting pin mounting holes and positioning cylinder mounting holes, wherein the bottom sealing plate body is a sixth cylinder, one connecting pin mounting hole and one positioning cylinder mounting hole are formed in the bottom sealing plate body, the connecting pin mounting holes and the positioning cylinder mounting holes are symmetrically arranged on the bottom sealing plate body, and the connecting pin mounting holes and the positioning cylinder mounting holes are cylindrical through holes;
when the sampling device is used, the outer sleeve is rotated after the sampling device is aligned with the sampling position, a screw is screwed when the mounting hole is aligned with the ON positioning hole of the upper sampling tube, so that the sampling device is in a completely opened state, at the moment, six sampling connecting rods are attached to the outer wall of the annular mounting groove, and six bottom sealing plates are in regular hexagon openings; the sampling device is enabled to reach the sampling depth by applying pressure to the sampling top cover, and at the moment, the collected sample sequentially enters the sampler, the lower sampling tube and the upper sampling tube through the regular hexagonal opening at the lower end of the sampling device; then the outer sleeve is rotated, a rotating rod arranged on the outer sleeve passes through the arc-shaped groove and then drives a sampling rotary table connected with the outer sleeve to rotate in the annular mounting groove, the sampling rotary table drives the sealing bottom plate to rotate around the positioning cylinder through the sampling connecting rod, when the outer sleeve rotates to the mounting hole to align with the OFF positioning hole of the upper sampling tube, a screw is screwed on the sampling device, so that the sampling device is in a completely closed state, at the moment, six sampling connecting rods are far away from the outer wall of the annular mounting groove, and the six sealing bottom plates are closed complete discs; and finally, taking the sampling device out of the stratum, and cleaning the sampling device after taking out the samples collected by the upper sampling tube and the lower sampling tube.
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| CN110644983B (en) * | 2018-11-08 | 2020-10-23 | 东阳市维创工业产品设计有限公司 | Water-locking type drilling sampling device for loose and broken stratum |
| CN109827810B (en) * | 2019-03-26 | 2024-01-26 | 中国林业科学研究院 | Unmanned aerial vehicle multichannel water sample collection device and method |
| CN110095312B (en) * | 2019-06-17 | 2021-06-25 | 国家深海基地管理中心 | Handheld columnar sediment sampler |
| CN111693325B (en) * | 2020-06-18 | 2023-05-16 | 北京市农林科学院 | Portable sampling device |
| CN112881088B (en) * | 2021-01-28 | 2023-01-24 | 河北建筑工程学院 | Collector suitable for river sediment sample collection |
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