CN118168848A - Sampling system for grassland investigation planning and dynamic monitoring - Google Patents
Sampling system for grassland investigation planning and dynamic monitoring Download PDFInfo
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- CN118168848A CN118168848A CN202410595651.3A CN202410595651A CN118168848A CN 118168848 A CN118168848 A CN 118168848A CN 202410595651 A CN202410595651 A CN 202410595651A CN 118168848 A CN118168848 A CN 118168848A
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- 238000005070 sampling Methods 0.000 title claims abstract description 374
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000011835 investigation Methods 0.000 title claims abstract description 8
- 239000002689 soil Substances 0.000 claims abstract description 80
- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 238000007790 scraping Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 63
- 230000007246 mechanism Effects 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 230000009471 action Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005527 soil sampling Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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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
- G01N1/04—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
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sampling system for grassland investigation planning and dynamic monitoring, and relates to the technical field of grassland sampling. According to the invention, a first sampling cone is of a hollow structure, a plurality of groups of sampling holes are formed in a circumferential array on the circumferential side surface of the first sampling cone, an axial regulating screw rod coaxial with the first sampling control disc is fixedly arranged at the bottom of the first sampling control disc, the axial linkage rod is arranged on one side of the axial regulating screw rod, a supporting plate is fixedly arranged on the circumferential side surface of the axial regulating screw rod, the axial linkage rod is in axial sliding fit with the supporting plate, a second sampling cone is of a hollow structure, a plurality of scraping openings are formed in the circumferential array on the circumferential side surface of the second sampling cone, each group of sampling holes corresponds to one scraping opening, and the second sampling cone is in clearance fit inside the first sampling cone. According to the invention, the second sampling cone is controlled to rotate along the inner wall of the first sampling cone through the axial regulating screw, so that soil extruded into the sample injection hole can be scraped into the second sampling cone, and the efficiency of sampling soil samples in a required soil layer is improved.
Description
Technical Field
The invention belongs to the technical field of grassland sampling, and particularly relates to a sampling system for grassland investigation planning and dynamic monitoring.
Background
The vegetation is a general term of various plants or plant communities which cover the grassland area and are suitable for the environmental conditions, the ecological condition is the similarity of the land vegetation and the land top community, the ecological condition of the vegetation is the overall condition of the vegetation, and the health degree or degradation degree of the vegetation is reflected, and is generally expressed by coverage, biomass and the like of the vegetation.
In order to reasonably treat the grasslands, prevent the water and soil loss of the grasslands, maintain the normal and stable ecology of the grasslands, and generally, the soil quality of the grasslands needs to be sampled and investigated. However, the existing soil sampler has a single function, and after the soil samples in the same batch are sampled, the soil samples need to be collected to continue the sampling of the soil samples in the next batch, so that the working efficiency of soil sampling is greatly reduced. To this end, we provide a sampling system for grassland survey planning and dynamic monitoring to solve the above problems.
Disclosure of Invention
The invention aims to provide a sampling system for grassland investigation planning and dynamic monitoring, which solves the problems in the background technology through the specific structural design of a rotary sampling mechanism and a supporting mechanism.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a sampling system for grassland investigation planning and dynamic monitoring, which comprises a rotary sampling mechanism, wherein the rotary sampling mechanism comprises an outer rotary sampling assembly and an inner rotary sampling assembly which are coaxially arranged;
The outer rotary sampling assembly comprises a first sampling cone, wherein the first sampling cone is of a hollow structure, and a plurality of groups of sampling holes are formed in the circumferential array of the peripheral side face of the first sampling cone; the first sampling control disc is arranged above the first sampling cone and is coaxially arranged with the first sampling cone, and an axial regulating screw rod coaxial with the first sampling control disc is fixedly arranged at the bottom of the first sampling control disc; and the axial linkage rod is arranged on one side of the axial regulating screw, a supporting plate is fixedly arranged on the circumferential side surface of the axial regulating screw, and the axial linkage rod is in axial sliding fit with the supporting plate.
The inner rotation sampling assembly comprises a second sampling cone which is of a hollow structure, a plurality of scraping openings are formed in the circumferential side surface of the second sampling cone in an array manner, each group of sampling holes corresponds to one scraping opening, and the second sampling cone is in clearance fit inside the first sampling cone; the top sealing disc is coaxially arranged at the top of the second sampling cone, the top sealing disc is connected with the second sampling cone through a fastener, a regulating screw hole in threaded fit with the axial regulating screw rod is formed in the center of the top sealing disc, and a linkage hole in plug-in fit with the axial linkage rod is formed in the eccentric position of the top sealing disc; and the hollow sampling tube is coaxially arranged at the bottom of the second sampling cone and fixedly connected with the second sampling cone, the hollow sampling tube is arranged inside the first sampling cone, and the minimum inner diameter of the first sampling cone is the same as the outer diameter of the hollow sampling tube.
The first sampling control disc is controlled to rotate to drive the axial regulating screw rod and the axial linkage rod to synchronously rotate, the second sampling cone synchronously rotates along with the first sampling control disc under the plug-in cooperation of the axial linkage rod and the linkage hole, the second sampling cone rotates along the inner wall of the first sampling cone to scrape soil extruded into the sampling hole, and scraped soil rolls into the hollow sampling tube to finish the collection of a batch of soil; the axial linkage rod is controlled to move upwards to be separated from the linkage hole, the first sampling control disc is utilized to rotate to drive the axial regulating screw to rotate synchronously, the second sampling cone is driven to move upwards to be separated from the inner wall of the first sampling cone under the cooperation between the axial regulating screw and the regulating screw hole, a sample storage cavity is formed between the second sampling cone and the first sampling cone, and at the moment, soil extruded into the sample injection hole can be scraped into the sample storage cavity by pressing and rotating the first sampling cone.
The invention further provides that the outer rotary sampling assembly further comprises a bearing frame, the bearing frame is arranged above the first sampling control disc, a second sampling control disc coaxial with the first sampling control disc is arranged on the inner side of the bearing frame, and the second sampling control disc is rotationally connected with the bearing frame; the surface of the second sampling control panel is provided with a mounting port coaxial with the second sampling control panel, an inner gear ring is fixedly arranged in the mounting port, and a first control gear meshed with the inner gear ring is connected with a first control motor output shaft arranged at the top of the bearing frame.
The invention is further characterized in that a plurality of fixed rods are arranged below the second sampling control disc in a circumferential array, the fixed rods are fixedly connected with the second sampling control disc, positioning wheels are fixedly arranged on the peripheral side surfaces of the fixed rods, the positioning wheels are circumferentially arranged on the peripheral side of the first sampling control disc, and the peripheral side surfaces of the first sampling control disc are in sliding fit with the inner cavities of the positioning wheels; the second sampling control panel week side is fixed to be provided with the motor mounting bracket, the second control motor output shaft of motor mounting bracket bottom installation has the second control gear, the annular tooth chamber of first sampling control panel week side seting up with the second control gear meshes mutually.
The invention is further characterized in that the top of the first sampling cone is fixedly provided with a closed ring coaxial with the first sampling cone, the top of the closed ring is fixedly provided with connecting pieces corresponding to the positioning wheels one by one, the bottom of the fixed rod is fixedly provided with a supporting rod, the lower end parts of the supporting rods are in plug-in fit with the corresponding connecting pieces and are connected with the corresponding connecting pieces through fasteners, the peripheral side surface of the closed ring is detachably provided with an arc-shaped closed door, and the inner wall of the closed ring is symmetrically and fixedly provided with two limiting raised strips.
The invention is further characterized in that the supporting plate is positioned above the sealing ring, a magnetic disc is fixedly arranged at the upper end part of the axial linkage rod, a permanent magnet arranged at the bottom of the magnetic disc and an electromagnet arranged at the top of the supporting plate repel each other magnetically, and a limiting ring positioned below the supporting plate is fixedly arranged on the peripheral side surface of the axial linkage rod.
The invention is further characterized in that limit openings which are in one-to-one correspondence with the limit convex strips are formed in the peripheral side surface of the top sealing disc, the limit openings are in sliding fit with the corresponding limit convex strips, and a plurality of drain holes are formed in the bottom of the hollow sampling tube; an inner sampling tube coaxial with the hollow sampling tube is arranged in the hollow sampling tube, the outer diameter of the inner sampling tube is smaller than the inner diameter of the hollow sampling tube, plugging plugs corresponding to the drain holes one by one are fixedly arranged at the bottom of the inner sampling tube, and a plurality of water filtering holes are formed in the peripheral side face of the inner sampling tube; the sealing plug is in plug connection with the corresponding drain hole, a first guide ring is fixedly arranged at the top of the inner storage tube, the inner part of the first guide ring is arranged into a conical structure, and the outer wall of the first guide ring is in sliding fit with the inner wall of the hollow storage tube.
The invention is further characterized in that a second material guiding ring is fixedly arranged in the hollow sampling tube near the top of the hollow sampling tube, the inner part of the second material guiding ring is in a conical structure, a connecting shaft is rotatably arranged at the eccentric position in the second material guiding ring, and a soil pushing disc for blocking a discharge hole of the second material guiding ring is fixedly arranged on the peripheral side surface of the connecting shaft; the inside installation cavity that is located in the second guide ring is provided with in the connecting axle both sides, the connecting axle both ends extend to respectively and correspond the installation cavity inside and be fixed with the rolling wheel, the wire rope mouth that is linked together with corresponding installation cavity is seted up to second guide ring bottom, the haulage rope expansion end on the rolling wheel wears corresponding wire rope mouth under and fixes on first guide ring.
The invention is further arranged that the invention also comprises a supporting mechanism; the supporting mechanism comprises a supporting base, a plurality of positioning plug-ins are fixedly arranged on the supporting base, a central through hole corresponding to the supporting plate is formed in the top of the supporting base, sliding holes corresponding to the supporting rods one to one are formed in the top of the supporting base, the supporting rods are longitudinally matched with the corresponding sliding holes in a sliding mode, hydraulic control equipment is arranged at the top of the supporting base, and the output end of the hydraulic control equipment is connected to the bottom of the bearing frame.
The invention has the following beneficial effects:
According to the invention, after the second control motor is started, the first sampling control disc can be driven to synchronously rotate by utilizing the rotating second control gear, and the axial linkage rod is downwards inserted into the linkage hole on the top sealing disc, so that in the process that the first sampling control disc rotates to drive the axial regulating screw to synchronously rotate, the top sealing disc rotates along with the axial regulating screw, the axial regulating screw and the top sealing disc do not relatively rotate, the second sampling cone rotates along the inner wall of the first sampling cone, and soil extruded into the sampling hole can be scraped into the second sampling cone, so that the efficiency of sampling soil samples in a required soil layer is improved, and meanwhile, the arrangement of the top sealing disc can effectively prevent soil on other soil layers from being mixed into the second sampling cone in the sampling process, so that the accuracy of soil sampling is ensured.
According to the invention, an upward magnetic repulsive force is generated on the permanent magnet at the bottom of the magnetic disc through the electromagnet, the magnetic disc moves upwards under the action of the magnetic repulsive force to drive the axial linkage rod to synchronously move away from the linkage hole until the limiting ring abuts against the bottom of the supporting plate, then the second control motor is started, the rotating second control gear is utilized to drive the first sampling control disc to synchronously rotate, and as the axial linkage rod is separated from the linkage hole on the top sealing disc, the axial linkage rod cannot drive the top sealing disc to synchronously rotate in the process that the first sampling control disc rotates to drive the axial regulation screw to synchronously rotate, and as the first sampling cone is in a non-rotating state, under the cooperation between the axial regulation screw and the regulation screw hole, the second sampling cone is driven to gradually move upwards until the top sealing disc abuts against the top of the sealing ring, and at the moment, the limiting ring abuts against the bottom of the supporting plate, so that a sample storage cavity is formed between the first sampling cone and the second sampling cone, and the sampling of a second batch of soil samples can be completed under the condition that the first batch of soil samples are not taken out, and the working efficiency of soil sampling is greatly improved.
According to the invention, after the scraped soil sample rolls down to the top of the soil pushing disc along the inner wall of the second sampling cone, the soil sample drives the soil pushing disc to rotate downwards under the action of gravity of the soil sample, so that the soil sample slides down to the inner sampling tube along the soil pushing disc, in the process, the rolling wheels on two sides of the soil sample are driven to synchronously rotate through the rotating connecting shaft, the inner sampling tube is gradually rolled up by the traction rope on the rolling wheels, so that the plugging plug moves upwards to be separated from the drain hole, at the moment, centrifugal water in the diversion cavity is discharged along the drain hole, and when the soil pushing disc rotates upwards gradually to reset under the action of the torsion spring, the traction rope on the rolling wheels is released gradually, so that the inner sampling tube starts to move downwards, and the plugging plug is reinserted into the corresponding drain hole when the soil pushing disc just completes reset.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a sampling system for grassland survey planning and dynamic monitoring.
Fig. 2 is a schematic structural view of a supporting mechanism in the present invention.
FIG. 3 is a schematic diagram of a rotary sampling mechanism according to the present invention.
FIG. 4 is a schematic diagram of the internal structure of the rotary sampling mechanism according to the present invention.
FIG. 5 is a schematic diagram of an external rotation sampling assembly according to the present invention.
Fig. 6 is a cross-sectional view of the longitudinal structure of fig. 5.
FIG. 7 is a schematic diagram of a rotational sampling assembly according to the present invention.
Fig. 8 is a cross-sectional view of the longitudinal structure of fig. 7.
Fig. 9 is an enlarged view of a partial structure at a in fig. 8.
Fig. 10 is an enlarged view of a partial structure at B in fig. 8.
In the drawings, the list of components represented by the various numbers is as follows:
1-rotary sampling mechanism, 2-external rotary sampling assembly, 201-first sampling cone, 202-sampling hole, 203-first sampling control disk, 204-axial adjusting screw, 205-axial linkage rod, 206-support plate, 207-carrier, 208-second sampling control disk, 209-first control motor, 210-first control gear, 211-fixed rod, 212-positioning wheel, 213-motor mounting bracket, 214-second control motor, 215-second control gear, 216-sealing ring, 217-connecting piece, 218-support rod, 219-arc-shaped airtight door, 220-spacing rib, 221-magnetic disk, 222-spacing ring, 3-internal rotary sampling assembly, 301-second sampling cone, 302-scraping opening, 303-top sealing disk, 304-adjusting screw, 305-linkage hole, 306-hollow sample storage tube, 307-spacing opening, 308-drainage hole, 309-internal storage wheel, 310-blocking, 311-first guide ring, 312-second guide tube ring, 313-connecting shaft, 314-soil pushing cavity, 316-sealing ring, 315-sealing ring, 401-sealing ring, 402-supporting device, 401-supporting device, 402-supporting device, and supporting device.
Detailed Description
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.
Referring to fig. 1-10, the present invention is a sampling system for grassland survey planning and dynamic monitoring, comprising a rotary sampling mechanism 1, wherein the rotary sampling mechanism 1 comprises an outer rotary sampling component 2 and an inner rotary sampling component 3 coaxially arranged;
Wherein, the outer rotary sampling assembly 2 comprises a first sampling cone 201, a first sampling control disc 203 and an axial linkage rod 205; the first sampling cone 201 is arranged to be of a hollow structure, and a plurality of groups of sampling holes 202 are arranged on the circumferential side surface of the first sampling cone in an array manner; the first sampling control disc 203 is arranged above the first sampling cone 201 and is coaxially arranged, and an axial regulating screw 204 which is coaxial with the first sampling control disc 203 is fixedly arranged at the bottom of the first sampling control disc 203; the axial linkage rod 205 is arranged at one side of the axial regulating screw 204, the supporting plate 206 is fixedly arranged on the peripheral side surface of the axial regulating screw 204, and the axial linkage rod 205 is axially matched with the supporting plate 206 in a sliding manner, so that the axial linkage rod 205 can always synchronously rotate along with the axial regulating screw 204;
The inner rotary sampling assembly 3 comprises a second sampling cone 301, a top sealing disk 303 and a hollow sampling tube 306; the second sampling cone 301 is arranged to be of a hollow structure, a plurality of scraping openings 302 are formed in the circumferential array of the circumferential surface of the second sampling cone 301, each group of sampling holes 202 corresponds to one scraping opening 302, the second sampling cone 301 is in clearance fit inside the first sampling cone 201, each group of sampling holes 202 in an initial state are positioned inside the corresponding scraping opening 302, when soil is extruded into the sampling holes 202 by pressing the first sampling cone 201 downwards, the soil in the sampling holes 202 can be cut off by controlling the second sampling cone 301 to rotate, and the cut soil rolls down into the hollow sampling tube 306 along the inner wall of the second sampling cone 301; the top sealing disc 303 is coaxially arranged at the top of the second sampling cone 301, the top sealing disc 303 is connected with the second sampling cone 301 through a fastener, through the detachable installation mode, after the soil sampling of a required soil layer is completed, the top sealing disc 303 is detached from the top of the second sampling cone 301, the soil sample collected in the hollow sampling tube 306 can be poured out, a regulating screw hole 304 in threaded fit with the axial regulating screw 204 is formed in the central position of the top sealing disc 303, and a linkage hole 305 in plug fit with the axial linkage rod 205 is formed in the eccentric position of the top sealing disc 303; the hollow sampling tube 306 is coaxially arranged at the bottom of the second sampling cone 301 and fixedly connected with the second sampling cone, the hollow sampling tube 306 is arranged inside the first sampling cone 201, and the minimum inner diameter of the first sampling cone 201 is the same as the outer diameter of the hollow sampling tube 306;
The first sampling control disc 203 is controlled to rotate to drive the axial regulating screw 204 and the axial linkage rod 205 to synchronously rotate, the second sampling cone 301 synchronously rotates along with the first sampling control disc 203 under the plug-in cooperation of the axial linkage rod 205 and the linkage hole 305, the second sampling cone 301 rotates along the inner wall of the first sampling cone 201 to scrape soil extruded into the sample injection hole 202, and scraped soil rolls into the hollow sample storage tube 306 to finish the collection of a batch of soil;
The axial linkage rod 205 is controlled to move upwards to be separated from the linkage hole 305, the first sampling control disc 203 is utilized to rotate to drive the axial regulating screw 204 to rotate synchronously, the second sampling cone 301 is driven to move upwards to be separated from the inner wall of the first sampling cone 201 under the cooperation between the axial regulating screw 204 and the regulating screw hole 304, a sample storage cavity is formed between the second sampling cone 301 and the first sampling cone 201, and at the moment, soil extruded into the sample injection hole 202 can be scraped into the sample storage cavity by pressing and rotating the first sampling cone 201.
In this embodiment of the present invention, the outer rotary sampling assembly 2 further includes a carrier 207, the carrier 207 is disposed above the first sampling control disc 203, a second sampling control disc 208 concentric with the first sampling control disc 203 is disposed inside the carrier 207, and the second sampling control disc 208 is rotatably connected with the carrier 207; the surface of the second sampling control panel 208 is provided with a mounting port coaxial with the second sampling control panel, an inner gear ring is fixedly arranged in the mounting port, and the output shaft of a first control motor 209 mounted at the top of the bearing frame 207 is connected with a first control gear 210 meshed with the inner gear ring; when the first control motor 209 is controlled to rotate to realize the rotation of the first control gear 210, the synchronous rotation of the second sampling control disc 208 can be realized by utilizing the cooperation between the first control gear 210 and the inner gear ring, and in the process, the first sampling cone 201 rotates and scrapes along the soil surface, so that the rotary sampling of the whole outer rotary sampling assembly 2 can be realized.
In this embodiment of the present invention, a plurality of fixing rods 211 are circumferentially arranged below the second sampling control disc 208, the fixing rods 211 are fixedly connected with the second sampling control disc 208, positioning wheels 212 are fixedly arranged on the circumferential side surfaces of the fixing rods 211, the positioning wheels 212 are circumferentially arranged on the circumferential side of the first sampling control disc 203, the circumferential side surfaces of the first sampling control disc 203 are slidably attached to the inner cavities of the positioning wheels 212, and by means of the structure, the first sampling control disc 203 can be ensured to be limited between the positioning wheels 212 which are circumferentially arranged, so that the first sampling control disc 203 can only rotate and cannot horizontally deviate;
A motor mounting frame 213 is fixedly arranged on the peripheral side surface of the second sampling control panel 208, a second control gear 215 is connected with an output shaft of a second control motor 214 arranged at the bottom of the motor mounting frame 213, and an annular tooth cavity formed in the peripheral side surface of the first sampling control panel 203 is meshed with the second control gear 215; in the initial state, the axial linkage rod 205 is inserted downward into the linkage hole 305 on the top sealing disk 303, and the axial regulation screw 204 is always in threaded fit with the regulation screw hole 304, after the second control motor 214 is started, the first sampling control disk 203 can be driven to synchronously rotate by using the rotating second control gear 215, and as the axial linkage rod 205 is inserted downward into the linkage hole 305 on the top sealing disk 303, in the process that the first sampling control disk 203 rotates to drive the axial regulation screw 204 to synchronously rotate, the top sealing disk 303 rotates along with the axial regulation screw 204, and the axial regulation screw 204 and the top sealing disk 303 do not rotate relatively, so that the second sampling cone 301 rotates along the inner wall of the first sampling cone 201, and soil extruded into the sample inlet 202 can be scraped into the second sampling cone 301.
In this embodiment of the present invention, a sealing ring 216 concentric with the first sampling cone 201 is fixedly disposed on the top of the first sampling cone 201, a connecting piece 217 corresponding to the positioning wheel 212 one by one is fixedly disposed on the top of the sealing ring 216, a supporting rod 218 is fixedly disposed at the bottom of the fixing rod 211, the lower end of the supporting rod 218 is inserted and matched inside the corresponding connecting piece 217, and the two are connected by a fastener, so that the first sampling cone 201 and the inner rotation sampling assembly 3 storing soil samples can be detached from the supporting rod 218 in a connecting manner, and the soil samples in the first sampling cone 201 and the inner rotation sampling assembly 3 can be conveniently poured and collected, an arc-shaped sealing door 219 is detachably mounted on the peripheral side surface of the sealing ring 216, through this structure, the soil samples in the sample storage cavity between the first sampling cone 201 and the second sampling cone 301 can be completely poured and collected after the arc-shaped sealing door 219 is opened, and two limiting protruding strips 220 are symmetrically and fixedly disposed on the inner wall of the sealing ring 216.
In the first batch of soil samples sampling by using the internal rotation sampling assembly 3, the specific process is as follows:
Firstly, drilling soil at a designated position of a grassland by using first earth drilling equipment until the drilling operation of soil layers with required depth is completed, forming a first drilling hole with the diameter larger than that of the top sealing disc 303, then continuously drilling in the first drilling hole by using second earth drilling equipment until the required depth is reached to form a second drilling hole with the diameter larger than the outer diameter of the hollow sampling tube 306 (the diameter of the second drilling hole is 2-5 cm larger than the outer diameter of the hollow sampling tube 306), and the depth of the second drilling hole is larger than the length of the hollow sampling tube 306, so that the hollow sampling tube 306 can smoothly move downwards in the second drilling hole all the time in the soil sampling process;
then, through inserting the first sampling cone 201 on the outer rotary sampling assembly 2 into the first drilling hole and controlling the whole outer rotary sampling assembly 2 to start descending until the outer wall of the first sampling cone 201 is attached to the junction of the first drilling hole and the second drilling hole, at this time, the hollow sampling tube 306 moves down to the inside of the second drilling hole, then the first sampling cone 201 is continuously controlled to move down, in this process, the outer wall of the first sampling cone 201 gradually extrudes soil, the soil extruded by the conical surface gradually enters the sampling hole 202 along the sampling hole 202 to form a strip shape (directly broken soil drops onto the inner wall of the second sampling cone 301 and rolls into the hollow sampling tube 306), then the second control motor 214 is started, the first sampling control disc 203 is driven to synchronously rotate by utilizing the rotating second control gear 215, and as the axial linkage rod 205 is downwards inserted into the linkage hole 305 on the top sealing disc 303, the first sampling control disc 203 rotates to drive the axial screw 204 to synchronously rotate, the top sealing disc 303 rotates along with the axial screw 204, the axial sealing disc 204 rotates, the soil is gradually extruded by the first sampling cone 201 and the second sampling cone 301 does not rotate along the first sampling cone 301, and the first sampling cone 301 rotates along the first sampling cone 301 alternately, and the first sampling cone 301 rotates along the first sampling cone 301 and the first sampling cone rotates, and the second sampling cone 301 rotates correspondingly, and the first sampling cone 301 rotates along the first sampling cone and the first sampling cone rotates and the first sampling cone and rotates accordingly the first sampling cone and the soil.
In the second embodiment, based on the first embodiment, the support plate 206 is located above the closed ring 216, the upper end of the axial linkage rod 205 is fixedly provided with a magnetic disc 221, a permanent magnet arranged at the bottom of the magnetic disc 221 magnetically repels an electromagnet arranged at the top of the support plate 206, and the side surface of the circumference of the axial linkage rod 205 is fixedly provided with a limiting ring 222 located below the support plate 206; in the initial state, the electromagnet at the top of the support plate 206 is in a power-off and demagnetized state, and the axial linkage rod 205 is in plug-in fit in the linkage hole 305 under the action of gravity, so that synchronous rotation of the axial linkage rod 205 can be realized (that is, the axial linkage rod 205 rotates with the axial control screw 204 as the axis) when the axial control screw 204 is controlled to rotate, and the second sampling cone 301 rotates along with the axial control screw 204 and the axial linkage rod 205;
After the electromagnet is controlled to be electrified and magnetized, the electromagnet generates an upward magnetic repulsive force to the permanent magnet at the bottom of the magnetic disc 221, the magnetic disc 221 moves upward under the action of the magnetic repulsive force to drive the axial linkage rod 205 to synchronously move and separate from the linkage hole 305 until the limit ring 222 abuts against the bottom of the supporting plate 206, then the second control motor 214 is started, the rotating second control gear 215 is utilized to drive the first sampling control disc 203 to synchronously rotate, and the axial linkage rod 205 is separated from the linkage hole 305 on the top sealing disc 303, so that in the process that the first sampling control disc 203 rotates to drive the axial control screw 204 to synchronously rotate, the axial linkage rod 205 cannot drive the top sealing disc 303 to synchronously rotate, and because the first sampling cone 201 is in a non-rotating state, the second sampling cone 301 is driven to gradually move upward under the cooperation between the axial control screw 204 and the control screw 304 until the top sealing disc 303 abuts against the inner top of the sealing ring 216, and the limit ring 222 abuts against the bottom of the supporting plate 206 at the moment, thereby forming a sample storage cavity between the first sampling cone 201 and the second sampling cone 301 for storing soil samples of another batch.
In this embodiment of the present invention, the peripheral side surface of the top sealing disc 303 is provided with the limit openings 307 corresponding to the limit convex strips 220 one by one, and the limit openings 307 are in sliding fit with the corresponding limit convex strips 220, by this structure, after the axial linkage rod 205 has been separated from the linkage hole 305 on the top sealing disc 303, the top sealing disc 303 is limited by the limit convex strips 220, and the top sealing disc 303 on the top of the second sampling cone 301 can slide upwards along the inner wall of the sealing ring 216 by controlling the rotation of the axial regulating screw 204 (in this process, the second sampling cone 301 will not rotate), and the bottom of the hollow sampling tube 306 is provided with a plurality of drain holes 308;
An inner sampling tube 309 concentric with the hollow sampling tube 306 is arranged in the hollow sampling tube 306, the outer diameter of the inner sampling tube 309 is smaller than the inner diameter of the hollow sampling tube 306, plugging plugs 310 which are in one-to-one correspondence with the drain holes 308 are fixedly arranged at the bottom of the inner sampling tube 309, and a plurality of water filtering holes are formed in the peripheral side surface of the inner sampling tube 309; when the inner sampling tube 309 moves upwards to separate the blocking plug 310 from the drain hole 308, synchronous rotation of the inner sampling tube 309 can be realized in the process of controlling rotation of the hollow sampling tube 306, so that water in a soil sample stored in the inner sampling tube 309 can be centrifuged into a diversion cavity between the inner sampling tube 309 and the hollow sampling tube 306, and the centrifuged water in the diversion cavity can be discharged along the drain hole 308;
The sealing plug 310 is in plug connection with the corresponding drain hole 308, a first guide ring 311 is fixedly arranged at the top of the inner storage tube 309, a conical structure is arranged inside the first guide ring 311, the outer wall of the first guide ring 311 is in sliding fit with the inner wall of the hollow storage tube 306 (a limit sliding block is fixed on the outer wall of the first guide ring 311 and is in sliding fit with a limit channel on the inner wall of the hollow storage tube 306, so that the inner storage tube 309 can be ensured not to rotate when moving in the axial direction, and the sealing plug 310 is always positioned at the position matched with the drain hole 308).
In this embodiment of the present invention, a second guide ring 312 is fixedly disposed in the hollow sample storage tube 306 near the top thereof, the inside of the second guide ring 312 is provided with a conical structure, a connecting shaft 313 is rotatably disposed at the eccentric position in the second guide ring 312, a soil pushing plate 314 for blocking the discharge hole of the second guide ring 312 is fixedly disposed on the circumferential side of the connecting shaft 313 (the connecting shaft 313 is connected in the second guide ring 312 through a torsion spring, so as to facilitate self-reset after the rotation of the soil pushing plate 314), and by disposing the connecting shaft 313 at the eccentric position of the soil pushing plate 314, the soil pushing plate 314 can be driven to rotate when a small amount of soil sample exists on one side of the soil pushing plate 314 far from the connecting shaft 313 according to the lever principle, so that the soil sample falling onto the soil pushing plate 314 is convenient to drop into the inner sample storage tube 309;
The second guide ring 312 is internally provided with mounting cavities 315 positioned at two sides of a connecting shaft 313, two ends of the connecting shaft 313 respectively extend into the corresponding mounting cavities 315 and are fixedly provided with winding wheels 316, the bottom of the second guide ring 312 is provided with rope penetrating ports 317 communicated with the corresponding mounting cavities 315, and the movable ends of traction ropes on the winding wheels 316 penetrate through the corresponding rope penetrating ports 317 and are fixed on the first guide ring 311; through this structure setting, after the soil sample of scraping rolls to soil pushing plate 314 top along second sampling awl 301 inner wall, soil sample is driven soil pushing plate 314 and is rotated down under its gravity effect, and then make soil sample slide to interior storage tube 309 along soil pushing plate 314, in this process, drive the synchronous rotation of the rolling wheel 316 of its both sides through pivoted connecting axle 313, haulage rope on the rolling wheel 316 is rolled up gradually and is driven interior storage tube 309 and is moved upwards, make shutoff head 310 shift up and break away from wash port 308, centrifugal water in the water conservancy diversion chamber just can be discharged along wash port 308 this moment, when making soil pushing plate 314 rotate upwards gradually under the torsional spring effect and reset, haulage rope on the rolling wheel 316 is released gradually, make interior storage tube 309 begin to move down, when soil pushing plate 314 just accomplishes the shutoff head 310 reinsertion in corresponding wash port 308.
In this embodiment of the invention, the invention also comprises a support mechanism 4; the supporting mechanism 4 comprises a supporting base 401, a plurality of positioning plug-ins 402 are fixedly arranged on the supporting base 401, a central through hole 403 corresponding to the supporting plate 206 is formed in the top of the supporting base 401, the supporting plate 206 can conveniently penetrate through the central through hole 403, sliding holes 404 corresponding to the supporting rods 218 one by one are formed in the top of the supporting base 401, the supporting rods 218 are longitudinally matched with the corresponding sliding holes 404 in a sliding mode, the stability of the up-and-down movement process of the whole rotary sampling mechanism 1 is guaranteed, a hydraulic control device 405 is mounted on the top of the supporting base 401, the output end of the hydraulic control device 405 is connected to the bottom of the bearing frame 207, and the lifting movement of the whole rotary sampling mechanism 1 can be achieved through the hydraulic control device 405.
After the second sampling cone 301 is utilized to rotate on the inner wall of the first sampling cone 201 to finish sampling of a first batch of soil samples, the electromagnet is controlled to electrify and have magnetism, the electromagnet generates upward magnetic repulsive force on the permanent magnet at the bottom of the magnetic disc 221, the magnetic disc 221 moves upwards under the action of the magnetic repulsive force to drive the axial linkage rod 205 to synchronously move away from the linkage hole 305 until the limiting ring 222 abuts against the bottom of the supporting plate 206, then the second control motor 214 is started, the rotating second control gear 215 is utilized to drive the first sampling control disc 203 to synchronously rotate, and the axial linkage rod 205 is separated from the linkage hole 305 on the top sealing disc 303, so that the axial linkage rod 205 cannot drive the top sealing disc 303 to synchronously rotate in the process of driving the axial control screw 204 to synchronously rotate, and the first sampling cone 201 is in a non-rotating state, under the action of the cooperation between the axial control screw 204 and the control screw 304, the second sampling cone 301 is driven to gradually move upwards until the top sealing disc 303 abuts against the top of the sealing ring 216, and the limiting ring 222 just abuts against the bottom of the supporting plate 206, thereby forming a sampling cavity 301 between the first sampling cone 201 and the first sampling cone 201;
Then the whole sampling system is moved and installed to a second sampling position, the depths of the first drilling hole and the second drilling hole at the second sampling position are adjusted according to the requirement (the diameter of the first drilling hole is required to be larger than that of the top sealing disc 303, the depth of the second drilling hole is required to be larger than that of the hollow sampling tube 306 without blocking the submergence of the hollow sampling tube 306), when the whole rotary sampling mechanism 1 is driven to move downwards through retracting motion of the hydraulic control device 405, the first sampling cone 201 gradually submerges along the first drilling hole at the position until the outer wall of the first sampling cone 201 abuts against the junction of the first drilling hole and the second drilling hole, at this time, the hydraulic control device 405 is used for controlling the first sampling cone 201 to move downwards to squeeze the soil on the periphery of the first sampling cone 201, the extruded soil forms a strip into the sampling hole 202, then the first control motor 209 is started to control the first control gear 210 to rotate, the synchronous rotation of the second sampling control disc 208 is realized through the cooperation between the first control gear 210 and the inner gear ring, the first sampling cone 201 is driven to rotate, the first sampling cone 201 is used for alternately pressing the first sampling cone 201 and the second sampling cone 201 alternately rotates along with the first sampling cone 201, and the first sampling cone 201 alternately rotates, and the first sampling cone 201 rotates, and the second sampling cone 201 rotates, and the required sampling cone 201 rotates, and the first sampling cone 201 rotates, and the sampling cone rotates.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. A sampling system for grassland survey planning and dynamic monitoring comprises a rotary sampling mechanism; the rotary sampling mechanism is characterized by comprising an outer rotary sampling assembly and an inner rotary sampling assembly which are coaxially arranged;
wherein the outer rotary sampling assembly comprises:
The first sampling cone is arranged to be of a hollow structure, and a plurality of groups of sampling holes are formed in the circumferential array of the peripheral side face of the first sampling cone;
the first sampling control disc is arranged above the first sampling cone and is coaxially arranged with the first sampling cone, and an axial regulating screw rod coaxial with the first sampling control disc is fixedly arranged at the bottom of the first sampling control disc;
The axial linkage rod is arranged on one side of the axial regulating screw, a supporting plate is fixedly arranged on the circumferential side surface of the axial regulating screw, and the axial linkage rod is in axial sliding fit with the supporting plate;
the internal rotation sampling assembly includes:
The second sampling cone is of a hollow structure, a plurality of scraping openings are formed in the circumferential array of the peripheral side face of the second sampling cone, each group of sampling holes corresponds to one scraping opening, and the second sampling cones are in clearance fit inside the first sampling cones;
The top sealing disc is coaxially arranged at the top of the second sampling cone, the top sealing disc is connected with the second sampling cone through a fastener, a regulating screw hole in threaded fit with the axial regulating screw rod is formed in the center of the top sealing disc, and a linkage hole in plug-in fit with the axial linkage rod is formed in the eccentric position of the top sealing disc;
The hollow sampling tube is coaxially arranged at the bottom of the second sampling cone and fixedly connected with the second sampling cone, the hollow sampling tube is arranged inside the first sampling cone, and the minimum inner diameter of the first sampling cone is the same as the outer diameter of the hollow sampling tube;
The first sampling control disc is controlled to rotate to drive the axial regulating screw rod and the axial linkage rod to synchronously rotate, the second sampling cone synchronously rotates along with the first sampling control disc under the plug-in cooperation of the axial linkage rod and the linkage hole, the second sampling cone rotates along the inner wall of the first sampling cone to scrape soil extruded into the sampling hole, and scraped soil rolls into the hollow sampling tube to finish the collection of a batch of soil;
The axial linkage rod is controlled to move upwards to be separated from the linkage hole, the first sampling control disc is utilized to rotate to drive the axial regulating screw to rotate synchronously, the second sampling cone is driven to move upwards to be separated from the inner wall of the first sampling cone under the cooperation between the axial regulating screw and the regulating screw hole, a sample storage cavity is formed between the second sampling cone and the first sampling cone, and at the moment, soil extruded into the sample injection hole can be scraped into the sample storage cavity by pressing and rotating the first sampling cone.
2. The sampling system for grassland survey planning and dynamic monitoring of claim 1, wherein the outer rotary sampling assembly further comprises a carriage, the carriage being disposed above the first sampling control disk, a second sampling control disk concentric with the first sampling control disk being disposed inside the carriage, the second sampling control disk being rotatably connected to the carriage;
The surface of the second sampling control panel is provided with a mounting port coaxial with the second sampling control panel, an inner gear ring is fixedly arranged in the mounting port, and a first control gear meshed with the inner gear ring is connected with a first control motor output shaft arranged at the top of the bearing frame.
3. The sampling system for grassland survey planning and dynamic monitoring according to claim 2, wherein a plurality of fixing rods are arranged below the second sampling control disc in a circumferential array, the fixing rods are fixedly connected with the second sampling control disc, positioning wheels are fixedly arranged on the circumferential side surfaces of the fixing rods, the positioning wheels are circumferentially arranged on the circumferential side of the first sampling control disc, and the circumferential side surfaces of the first sampling control discs are in sliding fit in inner cavities of the positioning wheels;
The second sampling control panel week side is fixed to be provided with the motor mounting bracket, the second control motor output shaft of motor mounting bracket bottom installation has the second control gear, the annular tooth chamber of first sampling control panel week side seting up with the second control gear meshes mutually.
4. The sampling system for grassland investigation planning and dynamic monitoring according to claim 3, wherein the top of the first sampling cone is fixedly provided with a closed ring coaxial with the first sampling cone, the top of the closed ring is fixedly provided with connecting pieces corresponding to the positioning wheels one by one, the bottom of the fixing rod is fixedly provided with a supporting rod, the lower end parts of the supporting rods are inserted and matched in the corresponding connecting pieces and are connected through fasteners, the side face of the periphery of the closed ring is detachably provided with an arc-shaped closed door, and the inner wall of the closed ring is symmetrically and fixedly provided with two limiting convex strips.
5. The sampling system for grassland survey planning and dynamic monitoring according to claim 4, wherein the supporting plate is located above the sealing ring, a magnetic disc is fixedly arranged at the upper end of the axial linkage rod, a permanent magnet arranged at the bottom of the magnetic disc and an electromagnet arranged at the top of the supporting plate are magnetically repelled, and a limiting ring located below the supporting plate is fixedly arranged on the peripheral side face of the axial linkage rod.
6. The sampling system for grassland investigation planning and dynamic monitoring according to claim 5, wherein the peripheral side surface of the top sealing disc is provided with limit openings corresponding to the limit convex strips one by one, the limit openings are in sliding fit with the corresponding limit convex strips, and the bottom of the hollow sampling tube is provided with a plurality of drain holes;
An inner sampling tube coaxial with the hollow sampling tube is arranged in the hollow sampling tube, the outer diameter of the inner sampling tube is smaller than the inner diameter of the hollow sampling tube, plugging plugs corresponding to the drain holes one by one are fixedly arranged at the bottom of the inner sampling tube, and a plurality of water filtering holes are formed in the peripheral side face of the inner sampling tube;
the sealing plug is in plug connection with the corresponding drain hole, a first guide ring is fixedly arranged at the top of the inner storage tube, the inner part of the first guide ring is arranged into a conical structure, and the outer wall of the first guide ring is in sliding fit with the inner wall of the hollow storage tube.
7. The sampling system for grassland survey planning and dynamic monitoring according to claim 6, wherein a second guide ring is fixedly arranged in the hollow sampling tube near the top of the hollow sampling tube, the inner part of the second guide ring is provided with a conical structure, a connecting shaft is rotatably arranged at the eccentric position of the inner part of the second guide ring, and a soil pushing disc for blocking a discharge hole of the second guide ring is fixedly arranged on the peripheral side surface of the connecting shaft;
The inside installation cavity that is located in the second guide ring is provided with in the connecting axle both sides, the connecting axle both ends extend to respectively and correspond the installation cavity inside and be fixed with the rolling wheel, the wire rope mouth that is linked together with corresponding installation cavity is seted up to second guide ring bottom, the haulage rope expansion end on the rolling wheel wears corresponding wire rope mouth under and fixes on first guide ring.
8. A sampling system for grassland survey planning and dynamic monitoring according to claim 7, further comprising a support mechanism;
The supporting mechanism comprises a supporting base, a plurality of positioning plug-ins are fixedly arranged on the supporting base, a central through hole corresponding to the supporting plate is formed in the top of the supporting base, sliding holes corresponding to the supporting rods one to one are formed in the top of the supporting base, the supporting rods are longitudinally matched with the corresponding sliding holes in a sliding mode, hydraulic control equipment is arranged at the top of the supporting base, and the output end of the hydraulic control equipment is connected to the bottom of the bearing frame.
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| CN118329518A (en) * | 2024-06-12 | 2024-07-12 | 内蒙古自治区林业和草原监测规划院 | Soil sampling device for monitoring growth of plant root system |
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| CN111473998A (en) * | 2020-06-15 | 2020-07-31 | 吴丽梅 | Sampling device for geological detection |
| US20230146816A1 (en) * | 2021-11-09 | 2023-05-11 | Innovaprep Llc | Large area surface sampler with invertible bag |
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