CN110672360A - Soil detection device - Google Patents
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- CN110672360A CN110672360A CN201910976916.3A CN201910976916A CN110672360A CN 110672360 A CN110672360 A CN 110672360A CN 201910976916 A CN201910976916 A CN 201910976916A CN 110672360 A CN110672360 A CN 110672360A
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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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Abstract
The invention discloses a soil detection device, which comprises an operation table, a longitudinal adjusting mechanism and a sampling mechanism, wherein the operation table is provided with a vertical adjusting mechanism; the lower surface mounting of operation panel has fixed establishment, horizontal adjustment mechanism is installed to the upper surface left part of operation panel, install fixture on the horizontal adjustment mechanism, be provided with sampling mechanism on the operation panel, a soil detection device, be equipped with sampling mechanism, can accurately sample simultaneously all carry out the simultaneous sampling to the soil of the different degree of depth, make things convenient for the laboratory technician to carry out the soil detection of the different degree of depth, it can observe the sampling depth to be equipped with the scale mark, it can hold sampling mechanism through fixture after the sampling to be equipped with fixture, make things convenient for the inspector to take a sample, do not need the inspector to hold the sample with the hand, prevent that the soil property that receives the pollution from causing the injury to inspector's hand, it can dry the sample to be equipped with dry box, prevent that soil moisture from causing the.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to a soil detection device.
Background
With the development of society, the development of chemistry has been promoted, and the soil often can receive from different pollutions, including chemical fertilizer or metal waste, and the degree of pollution, soil self is difficult to self-purification, and these polluted soil get into the river through the washing of rainwater, cause the water quality eutrophication of river easily, therefore soil detection is at all too late, and the technician can improve soil pollution through the soil condition after the detection formulate different treatment schemes.
The existing soil detection device is provided with a simple sampling tool for sampling and then is detected by an analytical instrument, but most polluted soil is corrosive, and a detector is easy to damage the skin due to direct contact.
Patent number CN200910156632.6 provides a preliminary treatment method and device of sample among portable soil testing, but current sampling instrument all is the manual sampling of inspector, waste time and energy, work efficiency is low, and, the soil that detects generally has certain humidity, humidity has apparent influence to the measurement of soil composition, and humidity is big more, influence to determinand characteristic spectral line and scattering ray is big more, it is not enough often only to detect the data accuracy that a small amount of soil obtained to detect soil simultaneously, often need detect the soil of the different degree of depth and make experimental data more convincing.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, and provide a soil detection device which is provided with a sampling mechanism, can accurately sample and simultaneously sample the soil at different depths, is convenient for an experimenter to detect the soil at different depths, is provided with scale marks to observe the sampling depth, is provided with a clamping mechanism to clamp the sampling mechanism through the clamping mechanism after sampling, is convenient for the inspector to sample, does not need the inspector to hold the sample with hands, prevents the contaminated soil from damaging the inspector's hands, is provided with a drying box to dry the sample, prevents the soil humidity from influencing the detection result, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a soil detection device comprises an operation table, a longitudinal adjusting mechanism and a sampling mechanism; the device comprises an operation table, a longitudinal adjusting mechanism, a fixing pipe, a sampling mechanism, a soil moisture tester, a soil tester, a single chip microcomputer and a drying box, wherein the lower surface of the operation table is provided with the fixing mechanism, the left part of the upper surface of the operation table is provided with the transverse adjusting mechanism, the transverse adjusting mechanism is provided with the clamping mechanism, the rear part of the upper surface of the operation table is provided with the longitudinal adjusting mechanism and the fixing pipe, the inner side surface of the fixing pipe is provided with an internal thread, the internal thread of the fixing pipe is provided with; the soil moisture tester, the soil tester and the drying box are all electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with an external power supply.
The operation table is provided with a transverse adjusting mechanism, a longitudinal adjusting mechanism and a sampling mechanism, the transverse adjusting mechanism and the longitudinal adjusting mechanism adjust the position of the sampling mechanism, and after the sampling mechanism obtains a soil sample, a soil moisture tester and a soil tester detect soil parameters.
Further, horizontal adjustment mechanism includes bearing frame and fixing base, first servo motor is installed to the lateral surface of fixing base, rotate on the bearing frame and install the lead screw, the tip and the fixing base of lead screw are connected, first servo motor's output shaft tip and screw connection, install the slide bar between bearing frame and the fixing base, slidable mounting has the sliding block on the slide bar, install screw nut on the sliding block, screw nut and screw connection, the last surface mounting of sliding block has the support, first servo motor is connected with the monolithic is electromechanical, be convenient for adjust fixture for horizontal position.
Further, fixture includes first electric telescopic handle, first electric telescopic handle's left end portion is connected with the right side of support, the hinged-support is installed to first electric telescopic handle's flexible end, it has the connecting plate to articulate on the hinged-support, the front surface mounting of hinged-support has second servo motor, second servo motor's output shaft tip is connected with the connecting plate, the rear surface mounting of connecting plate has solid fixed splint, the front surface mounting of connecting plate has two second electric telescopic handle, movable splint is installed to second electric telescopic handle's flexible end, first electric telescopic handle, second electric telescopic handle and second servo motor are connected with the monolithic is electromechanical, be convenient for control fixture's angle and centre gripping dynamics, make things convenient for the centre gripping sampling mechanism.
Further, dry box includes dry box main part, and dry box main part is high temperature resistant plastic box, and four equidistance distribution's heating rod is installed to the bottom surface of dry box main part, and the heating rod is connected with the monolithic is electromechanical, is convenient for carry out the drying process before detecting soil sample, prevents that humidity from influencing soil sample testing result.
Further, vertical adjustment mechanism includes the spout, and slidable mounting has linear electric motor on the spout, installs the fixed plate on the linear electric motor, and the last surface mounting of fixed plate has third servo motor, and the inserted bar is installed to third servo motor's output shaft tip, and linear electric motor, third servo motor all are connected with the singlechip electricity, adjust the degree of depth of sampling mechanism sample.
Further, sampling mechanism includes the sampling pipe, the upper end threaded connection of sampling pipe has sealed lid, the slot has been seted up to sealed covering, the slot is pegged graft with the inserted bar, the annular side of sampling pipe is equipped with the external screw thread, the interior screw-thread fit of external screw thread and fixed pipe, the drill bit is installed to the lower tip of sampling pipe, the sampling groove has been seted up to the lower part of sampling pipe, the fixed plate is installed to the medial surface lower part of sampling pipe, the lower surface mounting of fixed plate has two telescopic links, the closing plate is installed to the flexible end of telescopic link, the cardboard is installed to the lateral surface of closing plate, after sampling mechanism reachd.
Furthermore, fixed framework includes the bracing piece, and the upper end and the lower surface of operation panel of bracing piece are connected, and the bottom plate is installed to the lower extreme of bracing piece, and the bottom plate passes through fastening bolt with the underrun and is connected, and fastening bolt is expansion bolts, is convenient for fix whole device.
Further, the fixed clamping plate and the movable clamping plate are both arc-shaped plates, the inner side surfaces of the fixed clamping plate and the movable clamping plate are both provided with non-slip mats, and the non-slip mats are rubber pads, so that the sampling mechanism can be clamped conveniently, and the slipping of the sampling mechanism is prevented.
Furthermore, the sampling pipe is a steel pipe, and the side of the sampling pipe is provided with scale marks, so that the sampling depth of the sampling pipe can be observed conveniently.
Furthermore, the drill bit of sampling mechanism is conical, and the drill bit is the titanium steel drill bit, is convenient for improve the life of sampling mechanism.
Compared with the prior art, the invention has the beneficial effects that: the soil detection device has the following advantages:
1. the drying box comprises a drying box main body, the drying box main body is a high-temperature-resistant plastic box, four heating rods which are distributed at equal intervals are installed on the bottom surface of the drying box main body, the heating rods are electrically connected with the single chip microcomputer, heating and drying treatment is conveniently carried out before soil samples are detected, and the influence of humidity on soil sample detection results is prevented.
2. Sampling mechanism includes the sampling pipe, the sampling pipe is pegged graft with the inserted bar through sealed slot on the lid, can realize the automatic sampling of sampling mechanism through third servo motor's drive, the cardboard is installed to the lateral surface of closing plate, can be when soil sampling, realize the closing plate through the cardboard and open automatically under the frictional force of earth, realize the automatic closure of closing plate simultaneously when the sampling pipe takes out under earth frictional force, the sampling pipe can once take the soil sample of a plurality of depths simultaneously, and work efficiency is improved.
3. Fixture passes through second servo motor, and the angle that fixture can be adjusted in the connecting plate cooperation, and fixture can centre gripping sampling mechanism through the cooperation of second electric telescopic handle, movable clamp plate and solid fixed splint simultaneously, does not need the handheld sampling mechanism of inspector, avoids the soil sample harm inspector ear skin that receives the pollution, and the notice slipmat can increase frictional force, makes things convenient for the centre gripping sampling mechanism.
4. Whole device passes through the operation of vertical adjustment mechanism of single chip microcomputer control, horizontal adjustment mechanism, fixture and third servo motor, realizes the automatic operation of device, improves work efficiency, reduces staff's working strength simultaneously, and whole device is multiple functional, and strong adaptability is equipped with fixed establishment and can makes when the device uses stable.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a top view of the clamping mechanism of the present invention;
FIG. 4 is a cross-sectional view of the sampling mechanism of the present invention;
fig. 5 is a cross-sectional view of a drying box according to the present invention.
In the figure: 1 operating table, 2 soil moisture measuring instrument, 3 soil tester, 4 single chip microcomputer, 5 drying box, 501 drying box main body, 502 heating rod, 6 transverse adjusting mechanism, 601 bearing seat, 602 fixed seat, 603 lead screw, 604 slide bar, 605 first servo motor, 606 slide block, 607 lead screw nut, 608 support, 7 clamping mechanism, 701 first electric telescopic rod, 702 hinged support, 703 connecting plate, 704 second servo motor, 705 fixed clamp plate, 706 second electric telescopic rod, 707 movable clamp plate, 8 longitudinal adjusting mechanism, 801 sliding chute, 802 linear motor, 803 fixed plate, 9 third servo motor, 10 inserted bar, 11 sampling mechanism, 1101 sampling tube, 1102 sealing cover, 1103 drill bit, 1104 sampling groove, 1105 fixed plate, 1106, 1107 closed plate, 1108 clamping plate, 12 slot, 13 fixing mechanism, 1301 supporting rod, bottom plate, 1303 fastening bolt, 14 scale mark line, 15 fixed tube, 16 non-slip mat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
example one
A soil detection device comprises an operation table 1, a longitudinal adjusting mechanism 8 and a sampling mechanism 11; the lower surface of the operation table 1 is provided with a fixing mechanism 13, the left part of the upper surface of the operation table 1 is provided with a transverse adjusting mechanism 6, the transverse adjusting mechanism 6 is provided with a clamping mechanism 7, the rear part of the upper surface of the operation table 1 is provided with a longitudinal adjusting mechanism 8 and a fixing pipe 15, the inner side surface of the fixing pipe 15 is provided with internal threads, the internal threads of the fixing pipe 15 are provided with a sampling mechanism 11, and the right part of the upper surface of the operation table 1 is sequentially provided with a soil moisture tester 2, a soil tester 3, a singlechip 4 and a drying box 5; the longitudinal adjusting mechanism 8 comprises a sliding chute 801, a linear motor 802 is slidably mounted on the sliding chute 801, a fixing plate 803 is mounted on the linear motor 802, a third servo motor 9 is mounted on the upper surface of the fixing plate 803, and an inserting rod 10 is mounted at the end part of an output shaft of the third servo motor 9; the sampling mechanism 11 comprises a sampling tube 1101, the upper end of the sampling tube 1101 is in threaded connection with a sealing cover 1102, a slot 12 is formed in the sealing cover 1102, the slot 12 is inserted into an insertion rod 10, an external thread is formed in the annular side face of the sampling tube 1101 and matched with an internal thread of a fixed tube 15, a drill 1103 is mounted at the lower end of the sampling tube 1101, a sampling groove 1104 is formed in the lower portion of the sampling tube 1101, a fixed plate 1105 is mounted at the lower portion of the inner side face of the sampling tube 1101, two telescopic rods 1106 are mounted on the lower surface of the fixed plate 1105, a sealing plate 1107 is mounted at the telescopic end of each telescopic rod; wherein: the soil moisture tester 2, the soil tester 3, the drying box 5, the linear motor 802 and the third servo motor 9 are electrically connected with the single chip microcomputer 4, and the single chip microcomputer 4 is electrically connected with an external power supply.
Example two
The difference between the present embodiment and the first embodiment is:
in this embodiment, the lateral adjustment mechanism 6 includes a bearing block 601 and a fixing block 602, a first servo motor 605 is installed on the outer side surface of the fixing block 602, a lead screw 603 is installed on the bearing block 601 in a rotating manner, the end of the lead screw 603 is connected with the fixing block 602, the end of an output shaft of the first servo motor 605 is connected with the lead screw 603, a sliding rod 604 is installed between the bearing block 601 and the fixing block 602, a sliding block 606 is installed on the sliding rod 604 in a sliding manner, a lead screw nut 607 is installed on the sliding block 606, the lead screw nut 607 is connected with the lead screw 603, a support 608 is installed on the upper surface of the sliding block 606, the first servo motor 605.
In this embodiment, the clamping mechanism 7 includes a first electric telescopic rod 701, the left end of the first electric telescopic rod 701 is connected with the right side of the support 608, a hinged support 702 is installed at the telescopic end of the first electric telescopic rod 701, a connecting plate 703 is hinged to the hinged support 702, a second servo motor 704 is installed on the front surface of the hinged support 702, the end of the output shaft of the second servo motor 704 is connected with the connecting plate 703, a fixed clamping plate 705 is installed on the rear surface of the connecting plate 703, two second electric telescopic rods 706 are installed on the front surface of the connecting plate 703, a movable clamping plate 707 is installed at the telescopic end of each second electric telescopic rod 706, the first electric telescopic rod 701, the second electric telescopic rods 706 and the second servo motor 704 are electrically connected with the single chip microcomputer 4, so as to control the angle and the clamping force of the clamping mechanism 7 and conveniently.
EXAMPLE III
The difference between the present embodiment and the first embodiment is:
in this embodiment, dry box 5 includes dry box main part 501, and dry box main part 501 is high temperature resistant plastic box, and four equidistance distribution's heating rod 502 is installed to dry box main part 501's bottom surface, and heating rod 502 is connected with singlechip 4 electricity, is convenient for carry out the drying process before detecting soil sample, prevents that humidity from influencing soil sample testing result.
In this embodiment, the fixing frame 13 includes a supporting rod 1301, the upper end of the supporting rod 1301 is connected to the lower surface of the operating table 1, the lower end of the supporting rod 1301 is provided with a bottom plate 1302, the bottom plate 1302 is connected to the bottom surface through a fastening bolt 1303, and the fastening bolt 1303 is an expansion bolt, so that the whole device can be fixed conveniently.
In this embodiment, the fixed splint 705 and the movable splint 707 are both arc-shaped plates, the inner side surfaces of the fixed splint 705 and the movable splint 707 are both provided with the anti-slip pad 16, and the anti-slip pad 16 is a rubber pad, so as to be convenient for clamping the sampling mechanism 11 and prevent the sampling mechanism 11 from slipping.
In this embodiment, the sampling pipe 1101 is a steel pipe, and the side surface of the sampling pipe 1101 is provided with scale marks 14, so that the sampling depth of the sampling pipe 1101 can be observed conveniently.
In this embodiment, the drill 1103 of the sampling mechanism 11 is conical, and the drill 1103 is a titanium steel drill, which is convenient for prolonging the service life of the sampling mechanism 11.
When in use: the operation table 1 is placed at a sampling position, the device is fixed through a fastening bolt 1303, the sampling depth of a sampling mechanism 11 is controlled through a single chip microcomputer 4, an insertion rod 10 is inserted into a slot 12, a switch of a linear motor 802 and a third servo motor 9 is opened, then the third servo motor 9 drives a sampling pipe 1101 to rotate to sample soil, the linear motor 802 moves longitudinally along with the sampling pipe 1101, when the sampling pipe 1101 samples soil, along with the downward movement of the sampling pipe 1101, the friction force of the soil can push a clamping plate 1108 to open a closed door 1107, then the sampling pipe 1101 can sample the soil, then the sampling pipe 1101 clamps the sampling pipe 1101 through a clamping mechanism 7 after sampling, then the first servo motor 605 rotates to drive a lead screw 603 to rotate, the lead screw 603 rotates to enable a sliding block 606 to move transversely, then the position of the clamping mechanism 7 is adjusted, and then the second servo motor 704 rotates, drive connecting plate 703 simultaneously and rotate, the angle of indirect adjustment sampling pipe 1101 then the inspector can take a sample, then through the sample moisture of soil moisture apparatus 2 test sample moisture, then put the sample and carry out the drying to soil sample in dry box 5, then put soil sample and carry out the composition with soil sample and detect in soil tester 3.
It is to be noted that the first servo motor 605, the second servo motor 704 and the third servo motor 9 disclosed in this embodiment may be LDD watset servo motors of the wuhan-hua-chilo numerical control device ltd, the first electric telescopic rod 701 and the second electric telescopic rod 706 are No. 1602 electric telescopic rods of the jinge hardware electromechanical ltd, the linear motor 802 is a LPS2-T linear motor of the clever monkey robot ltd, the heating rod 502 is a B-grade stainless steel heating rod of the salt cheng mei electric heating technology ltd, the single chip microcomputer 4 is a PLC controller, and the model is mitsubishi FR-FX 1S. The single chip microcomputer 4 controls the soil moisture tester 2, the soil tester 3, the heating rod 502, the first servo motor 605, the first electric telescopic rod 701, the second servo motor 704, the second electric telescopic rod 706, the linear motor 802 and the third servo motor 9 to work by adopting a common method in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A soil detection device which characterized in that: comprises an operation table (1), a longitudinal adjusting mechanism (8) and a sampling mechanism (11); the soil moisture tester is characterized in that a fixing mechanism (13) is installed on the lower surface of the operating table (1), a transverse adjusting mechanism (6) is installed on the left portion of the upper surface of the operating table (1), a clamping mechanism (7) is installed on the transverse adjusting mechanism (6), a longitudinal adjusting mechanism (8) and a fixing pipe (15) are installed on the rear portion of the upper surface of the operating table (1), internal threads are formed in the inner side of the fixing pipe (15), a sampling mechanism (11) is installed on the internal threads of the fixing pipe (15), and a soil moisture tester (2), a soil tester (3), a single chip microcomputer (4) and a drying box (5) are sequentially installed on the right portion of the upper surface of the operating table (; the soil moisture tester (2), the soil tester (3) and the drying box (5) are respectively electrically connected with the single chip microcomputer (4), and the single chip microcomputer (4) is electrically connected with an external power supply.
2. A soil detection device as claimed in claim 1, wherein: horizontal adjustment mechanism (6) include bearing frame (601) and fixing base (602), first servo motor (605) are installed to the lateral surface of fixing base (602), rotating on bearing frame (601) and installing lead screw (603), the tip and the fixing base (602) of lead screw (603) are connected, the output shaft tip and the lead screw (603) of first servo motor (605) are connected, install slide bar (604) between bearing frame (601) and fixing base (602), sliding mounting has sliding block (606) on slide bar (604), install screw nut (607) on sliding block (606), screw nut (607) are connected with lead screw (603), the last surface mounting of sliding block (606) has support (608), first servo motor (605) is connected with singlechip (4) electricity.
3. A soil detection device as claimed in claim 1, wherein: the clamping mechanism (7) comprises a first electric telescopic rod (701), the left end of the first electric telescopic rod (701) is connected with the right side face of the support (608), a hinged support (702) is installed at the telescopic end of the first electric telescopic rod (701), a connecting plate (703) is hinged to the hinged support (702), a second servo motor (704) is installed on the front surface of the hinged support (702), the end portion of an output shaft of the second servo motor (704) is connected with the connecting plate (703), a fixed clamping plate (705) is installed on the rear surface of the connecting plate (703), two second electric telescopic rods (706) are installed on the front surface of the connecting plate (703), a movable clamping plate (707) is installed at the telescopic end of each second electric telescopic rod (706), and the first electric telescopic rod (701), the second electric telescopic rods (706) and the second servo motor (704) are electrically connected with the single chip microcomputer (4).
4. A soil detection device as claimed in claim 1, wherein: drying box (5) are including drying box main part (501), and drying box main part (501) are high temperature resistant plastic box, and four equidistance distribution's heating rod (502) are installed to the bottom surface of drying box main part (501), and heating rod (502) are connected with singlechip (4) electricity.
5. A soil detection device as claimed in claim 3, wherein: the fixed clamping plate (705) and the movable clamping plate (707) are both arc-shaped plates, the inner side surfaces of the fixed clamping plate (705) and the movable clamping plate (707) are both provided with anti-skid pads (16), and the anti-skid pads (16) are rubber pads.
6. A soil detection device as claimed in claim 1, wherein: vertical adjustment mechanism (8) include spout (801), and slidable mounting has linear electric motor (802) on spout (801), installs fixed plate (803) on linear electric motor (802), and the upper surface mounting of fixed plate (803) has third servo motor (9), and inserted bar (10) are installed to the output shaft tip of third servo motor (9), and linear electric motor (802), third servo motor (9) are connected with singlechip (4) electricity respectively.
7. A soil detection device as claimed in claim 1, wherein: sampling mechanism (11) are including sampling pipe (1101), the upper end threaded connection of sampling pipe (1101) has sealed lid (1102), slot (12) have been seted up on sealed lid (1102), slot (12) are pegged graft with inserted bar (10), the annular side of sampling pipe (1101) is equipped with the external screw thread, the external screw thread is with the interior screw-thread fit of fixed pipe (15), drill bit (1103) are installed to the lower tip of sampling pipe (1101), sampling groove (1104) have been seted up to the lower part of sampling pipe (1101), fixed plate (1105) are installed to the medial surface lower part of sampling pipe (1101), the lower surface mounting of fixed plate (1105) has two telescopic link (1106), closing plate (1107) are installed to the flexible end of telescopic link (1106), cardboard (1108) are installed to the lateral surface of closing plate (.
8. A soil detection device as claimed in claim 1, wherein: the fixed framework (13) comprises a supporting rod (1301), the upper end of the supporting rod (1301) is connected with the lower surface of the operating platform (1), a bottom plate (1302) is installed at the lower end of the supporting rod (1301), the bottom plate (1302) is connected with the bottom surface through fastening bolts (1303), and the fastening bolts (1303) are expansion bolts.
9. A soil detection device as claimed in claim 1, wherein: the sampling pipe (1101) is a steel pipe, and the side surface of the sampling pipe (1101) is provided with scale marks (14).
10. A soil detection device as claimed in claim 1, wherein: the drill bit (1103) of the sampling mechanism (11) is conical, and the drill bit (1103) is a titanium steel drill bit.
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| CN201910976916.3A CN110672360A (en) | 2019-10-15 | 2019-10-15 | Soil detection device |
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| CN201910976916.3A CN110672360A (en) | 2019-10-15 | 2019-10-15 | Soil detection device |
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| CN111812301A (en) * | 2020-07-27 | 2020-10-23 | 林惠明 | Detection equipment for detecting deep soil |
| CN113029661A (en) * | 2021-04-09 | 2021-06-25 | 哈尔滨学院 | Wetland soil degree of depth sampling device |
| CN113252879A (en) * | 2021-06-08 | 2021-08-13 | 陈振飞 | Soil sampling and detecting equipment |
| CN115014941A (en) * | 2022-06-02 | 2022-09-06 | 广东嘉元科技股份有限公司 | Copper foil online detection method and device suitable for single-opening detection mechanism |
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| CN116625736A (en) * | 2022-09-13 | 2023-08-22 | 江苏省支和肥业有限公司 | Compound fertilizer component determination sample extraction device and extraction method |
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