CN103063471A - Portable sampling device for deep in situ soil and usage method thereof - Google Patents
Portable sampling device for deep in situ soil and usage method thereof Download PDFInfo
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- CN103063471A CN103063471A CN2012105830508A CN201210583050A CN103063471A CN 103063471 A CN103063471 A CN 103063471A CN 2012105830508 A CN2012105830508 A CN 2012105830508A CN 201210583050 A CN201210583050 A CN 201210583050A CN 103063471 A CN103063471 A CN 103063471A
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Abstract
The present invention relates to a portable sampling device for deep in situ soil. The device comprises a hamming handle, a threaded joint, a connecting rod and a sampling head which are connected successively from top to bottom. The threads of one end of the connecting rod are connected to the threaded joint, and the threads of the other end of the connecting rod are connected to the sampling head; the connecting rods and the sampling head are sleeved with a straightness limiting device; the straightness limiting device comprises a cylindrical sleeve; a horizontal plate is arranged at the periphery of the bottom of the cylindrical sleeve; the cylindrical sleeve is perpendicular to the horizontal plate; the bottom port of the cylindrical sleeve is provided with an annular fending platform; a perforation is arranged at the center of the annular fending platform; and the sampling head and the connecting rod penetrate through the cylindrical sleeve and the perforation. The portable sampling device of the invention can perform stratified sampling and deep soil sampling; the straightness limiting device ensures the sampling head and the connecting rod vertically enter into the soil to prevent the sampling head and the connecting rod from inclining and remolding other soil layer when entering into the soil, thus no destruction to the original soil layers; the portable sampling device is dismountable and easy to carry, greatly improving the efficiency of soil sample collection.
Description
Technical field
The present invention relates to a kind of sampler of Portable deep original position soil, belong to the soil sample equipment technical field.
Background technology
China is a large agricultural country, the arable land that the whole world 7% is only arranged, but need to support the population in the whole world 22%, satisfy growing population demand in order to obtain high yield, the at present production of China's chemical fertilizer and use all occupy first place in the world, national applying quantity of chemical fertilizer was 5239.0 ten thousand tons in 2008, and mean value is 430.4kg/hm
2, be the 225kg/hm that prevents that chemical fertilizer from arranging water pollution considerably beyond developed country
2Upper safety limit, the chemical fertilizer average utilization only is about 40%.What the using of a large amount of chemical fertilizer brought thereupon is the excessive pollution problem of fertilizer: on the one hand, the fertilizers input of a large amount easily causes the enrichment of soil nutrient, causes the eutrophication of soil; On the other hand, a large amount of chemical fertilizer that run off enter underground water and surface water, have aggravated the eutrophication of water body.In addition, the excessive input of fertilizer can not only obviously cause the accumulation of npk nutrient in the soil body in the facilities vegetable production, and heavy metal constantly accumulation in the facility vegetable plot in the fertilizer, has become the major hidden danger of facility vegetable plot industrial environment safety.Therefore, the soil nutrient status of understanding different soil is soil, plant nutrient and agriculture environmental protection researchers' top priority, could " suit the remedy to the case " like this, really solves pollution and the environmental security of soil.
Whether soil nutrient mensuration and analysis result be true and reliable, relevant issues can scientifically be described, focus on the acquisition and processing of pedotheque, wherein the collecting work of pedotheque is prerequisite and the basis in the whole analytical work, therefore carry out the collecting soil sample of science according to experiment purpose most important, understand the soil nutrient status of different soil, in the collecting soil sample process, carry out accurately stratified sampling as far as possible.In soil layering sample collection process, adopt the acquisition method of hand digging more, the hand digging method often has certain destructiveness, waste time and energy, and soil depth is difficult to accurate control during manually-operated.Along with the progress of technology, the appearance of drawing out soil equipment has solved the technical matters that manually wastes time and energy, and at present, domestic drawing out soil equipment mainly contains directly forced, hammering adding pressure type and is pressed into rotary.Straight forced drawing out soil equipment mainly is fit to gather the comparatively soft topsoil soils sample of soil layer, and the degree of depth that fetches earth is more shallow, is generally 0-20cm; It is harder that hammering adding pressure type soil sample barrel is applicable to soil property, and the degree of depth that fetches earth surpasses more than the 40cm, and the drill bit opening is generally about 50cm, and shortcoming is that soil property is hard owing to fetching earth deeplyer, and hammering easily causes soil sample barrel to damage during as power, takes a lot of work expensive; And the drill bit that is pressed into rotary soil sample barrel is spiral fashion, although can reduce the resistance when fetching earth, can not keep the soil layer construction of original position soil, is not suitable for the research purpose that layering is fetched earth.
Chinese patent CN101832883 discloses a kind of soil layering scraping sampler, comprises rectangle sampling frame and can be along the slide rectangle scraper plate of scraping soil of sampling frame in its structure, and the scraper plate both sides arrange the depth stop device.Can accurately control soil layering thickness, disposablely obtain a large amount of pedotheques, simple to operate, easy to carry.But there is following defective in use in this soil layering scraping sampler: (1), during use, first horizontal pane is squeezed into ground, then use scraper plate, along the reciprocal scraping soil of horizontal pane, and use at any time the instrument such as scuppit that the pedotheque that sweeps is collected, when scraping during to default individual layer sample sampling depth, the scraping that reciprocatingly slides again soil, until the pedotheque of set depth is all swept, this device needs repeatedly scraping soil layer of manpower, waste time and energy, speed is slow, and efficient is low, because long-term fertilising accumulation, the accumulation of nutrient in the soil body moves down gradually, and this device is only suitable for gathering the sample of the comparatively soft arable layer of soil layer, then can't gather for hard deep soil layer sample.(2), can stay on the earth's surface larger heatable adobe sleeping platform, havoc morphosequent after the sampling.
Chinese patent CN201527361 discloses a kind of Portable soil sample collecting drill, comprises drill bit and the drilling rod of tubulose, and drilling rod is dimerous by what be threaded.The length that Portable soil sample collecting drill is regulated drilling rod by cleverly design when being convenient for carrying, has satisfied the needs of different depth sample collection, have advantages of easy to operate, cost is low.But the deficiency of this patent is, fetch earth and soil property hard the time for deep layer, with hammering during as power, power directly acts on and gathers drill bit and the drilling rod that bores, drill bit and drilling rod easily damage, and add drilling rod longer, enter in the soil layer easily to tilt, cause the soil layer sampling inaccurate when causing taking a sample, and soil sample is easily contaminated.
Summary of the invention:
For the deficiencies in the prior art, the invention provides a kind of sampler of Portable deep original position soil, can stratified sampling and the deep sampling, the straight device of limit has guaranteed that sampling head is vertical with connecting link and has entered in the soil layer, prevent that sampling head and connecting link from entering other soil layers of soil layer medium dip disturbance, the original soil layer of spoiled soil is not detachable, be easy to carry, greatly improved the efficient of collecting soil sample.
Technical scheme of the present invention is as follows:
A kind of sampler of Portable deep original position soil, comprise the hammering handle that connects successively from top to bottom, threaded connector, connecting link and sampling head, described hammering handle is fixedly connected with threaded connector, the threaded one end of described connecting link is connected on the threaded connector, the other end is threaded on the sampling head, it is characterized in that, described connecting link, the limited straight device of sampling head overcoat, described limit directly device comprises cylindrical sleeve, the bottom periphery of cylindrical sleeve is provided with leveling board, described cylindrical sleeve is vertical with leveling board, described leveling board is fixedly connected with the bottom periphery of cylindrical sleeve, and described cylindrical sleeve bottom nozzle place is provided with annular gear platform, and annular gear platform center arranges perforation, described sampling head, connecting link passes cylindrical sleeve and perforation, and described connecting link outside surface is provided with graduated scale.Annular gear platform and cooperating that limit is directly installed make that sampling head is vertical with connecting link to be entered in the soil layer, prevent that sampling head and connecting link from entering other soil layers of soil layer medium dip disturbance, sample sampling head more accurate in each soil layer; When sampling complete when vertically extracting connecting link, sampling head and connecting link are extracted from the perforation at annular gear platform center, play the guiding role, and annular gear platform plays the effect that stops, removes sampling head and connecting link outside surface soil simultaneously, reach the purpose of cleaning connecting link, need not manually to carry out the secondary cleaning.
Described leveling board bottom is provided with prominent point, and the thorn point of prominent point down.To dash forward during use during Jianzha County buries, play the effect of the straight device of fixing limit, and prevent from limitting in use straight device to rock, affect the soil sample collection.
The periphery of described leveling board in the cylindrical sleeve bottom forms circular leveling board.Circular leveling board has increased the contact area with ground, and circular leveling board is stablized the vertical ground surface that stands on more with making the straight device of limit cooperating of cylindrical sleeve.
It is dull and stereotyped that the periphery of described leveling board in the cylindrical sleeve bottom forms square water.
Described middle part at the hammering handle is provided with the horizontal holding rod that is horizontally through the hammering handle, the two ends of described horizontal holding rod are positioned at hammering handle both sides, be respectively arranged with two reinforced liners in the both sides of hammering handle, one end of reinforced liner is fixed on the hammering handle, and the other end is fixedly connected on the horizontal holding rod; Described hammering handle, two reinforced liners form triangle.
Described connecting link outside surface is provided with external thread, the limited location device is threaded on the connecting link, described stop means comprises spacing dop and clamping ring, one end of spacing dop is fixedly connected with clamping ring, clamping ring inside is provided with connecting hole, be provided with the internal thread that is complementary with connecting link surface external thread on the inwall of clamping ring, axial draw-in groove is set on the sidewall of cylindrical sleeve, the other end of described spacing dop is positioned at draw-in groove and can moves up and down along draw-in groove.
Described spacing dop is two, is symmetricly set on the both sides of clamping ring, and the draw-in groove correspondence on the sidewall of described cylindrical sleeve is set to two.
The xsect of described sampling head is c shape, and the bottom of sampling head is arc, and the height of sampling head is 15 ~ 35cm, and the sidewall of described sampling head is provided with and axially falls native hole, and the height in native hole of falling is 12 ~ 33cm, and width is 15 ~ 20mm.
Described cylindrical sleeve sidewall is provided with the strip viewport.Can observe the position of stop means in cylindrical sleeve by viewport.
When finishing using, in order conveniently to extract the straight device of limit, be provided with handle on the described cylindrical sleeve.
Described hammering handle profile is inverted conical flask shape, and inside is solid construction, and material is stainless steel material, is level and smooth hammering surface of contact above the hammering handle.Level and smooth hammering surface of contact can reduce hammer action power to the direct impact of drawing out soil equipment; The handle body down is tapered, and basic identical near the rugosity of connection of thread and connecting link, is conducive to like this guarantee the firm and attractive in appearance of hammering handle.
Described hammering handle, horizontal holding rod, connecting link and reinforced liner are solid stainless steel.
The material of described sampling head is 304 stainless steels.
The present invention also provides a kind of using method of sampler of Portable deep original position soil, may further comprise the steps:
(1) selects the smooth sampling spot in earth's surface, will limit straight device vertically to stand on the sampling spot, insert the prominent point of leveling board bottom in the soil layer and make close proximity to ground bottom the leveling board;
(2) according to sampling depth, adjust the position that the straight device of limit is fixed on connecting link, and alignd with the draw-in groove of cylindrical sleeve sidewall in the end of spacing dop, and sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center;
(3) the hammering handle is exerted pressure, the perforation that sampling head passes annular gear platform enters in the soil layer, and along with sampling head progresses in the soil layer, the spacing dop of stop means moves down gradually along the draw-in groove of cylindrical sleeve sidewall;
(4) observe the position movement of stop means in cylindrical sleeve from viewport, when stop means contacts with annular gear platform, stop to exert pressure, this moment, annular gear platform was limited in connecting link the position at stop means place;
(5) hold horizontal holding rod, then rotation 2-3 circle slowly extracts sampling head vertically upward between up time, has been full of the soil sample of corresponding soil layer in the sampling head;
(6) cutter that will fetch earth stretches into down in the native hole soil sample in the sampling head is released piecemeal, in the sealed bag of packing into, and recording-related information;
(7) adjust the straight position of installing of limit, alignd with the draw-in groove of cylindrical sleeve sidewall in the termination of spacing dop, sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center; The layering collection is carried out to the pedotheque of different depth in repeating step (3), (4), (5), (6).
Advantage of the present invention is as follows:
1, the present invention's annular gear platform and straight cooperating of installing of limit, make that sampling head is vertical with connecting link to be entered in the soil layer, prevent that sampling head and connecting link from entering other soil layers of soil layer medium dip disturbance, avoid mixing of different layers position soil, sampling head is sampled more accurate in each soil layer, reached the purpose of deep layer in-situ sampling.
2, the present invention limits the leveling board bottom of straight device to be provided with the point of dashing forward, and is in burying in the Jianzha County of will dashing forward during use, more firm with what limit straight device to fix.
3, the present invention can accurately control the lift height of pedotheque by the graduated scale of stop means, connecting pipe outer wall and being used in conjunction with of annular gear platform, has greatly improved the efficient of collecting soil sample.
4, the present invention is respectively arranged with two reinforced liners in the both sides of hammering handle, and hammering handle, two reinforced liners form triangle, and are solid stainless steel, make sampler more firm, firm, and are not yielding.
5, after sampler of the present invention was extracted the earth's surface, annular gear platform played and stops the effect of removing sampling head and connecting link outside surface soil, reaches the purpose of cleaning connecting link, need not manually to carry out the secondary cleaning.
6, the present invention is simple in structure, with low cost, and connecting link and hammering handle, sampling head all are threaded connection, and is detachable, is easy to carry.
Description of drawings
Fig. 1 is the structural representation of sampler of the present invention;
Fig. 2 is hammering handle of the present invention and threaded joint connection structure schematic diagram;
Fig. 3 is that the limit of sampling apparatus of the present invention is directly installed cross-sectional view;
Fig. 4 is connecting link, the stop means of sampling apparatus of the present invention, the syndeton schematic diagram of cylindrical sleeve;
Fig. 5 is the structure enlarged drawing of the stop means of sampler of the present invention;
Fig. 6 is the structure enlarged drawing of sampling head of the present invention;
Fig. 7 is that the limit of embodiment 1 sampling apparatus is directly installed the plan structure schematic diagram;
Fig. 8 is that the limit of embodiment 2 sampling apparatuses is directly installed the plan structure schematic diagram;
Wherein: 1, hammering handle; 2, horizontal holding rod; 3, reinforced liner; 4, threaded connector; 5, connecting link; 6, sampling head; 7, limit is directly installed; 8, stop means; 9, cylindrical sleeve; 10, leveling board; 11, annular gear platform; 12, prominent point; 13, the external thread on the connecting link; 14, the graduated scale on the connecting link; 15, the draw-in groove on the cylindrical sleeve sidewall; 16, clamping ring; 17, spacing dop; 18, the connecting hole of clamping ring inside; 19, fall native hole; 20, the graduated scale on the sampling head sidewall.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, but be not limited to this.
Embodiment 1:
A kind of sampler of Portable deep original position soil, structure is shown in Fig. 1-8, comprise the hammering handle 1 that connects successively from top to bottom, threaded connector 4, connecting link 5 and sampling head 6, hammering handle 1 is fixedly connected with threaded connector 4, the threaded one end of connecting link 5 is connected on the threaded connector 4, the other end is threaded on the sampling head 6, be provided with the horizontal holding rod 2 that is horizontally through hammering handle 1 at the middle part of hammering handle 1, the two ends of described horizontal holding rod 2 are positioned at hammering handle 1 both sides, be respectively arranged with two reinforced liners 3 in the both sides of hammering handle 1, one end of reinforced liner 3 is fixed on the hammering handle 1, and the other end is fixedly connected on the horizontal holding rod 2; Described hammering handle 1, two reinforced liners 2 form triangle.Described hammering handle 1 profile is inverted conical flask shape, and inside is solid construction, and material is stainless steel material, is level and smooth hammering surface of contact above the hammering handle 1.
Connecting link 5, the limited straight device 7 of sampling head 6 overcoats, the straight device 7 of limit comprises cylindrical sleeve 9, the bottom periphery of cylindrical sleeve 9 is provided with leveling board 10, cylindrical sleeve 9 is vertical with leveling board 10, leveling board 10 is fixedly connected with the bottom periphery of cylindrical sleeve 9, leveling board 10 forms circular leveling board in the periphery of cylindrical sleeve 9 bottoms, and structure as shown in Figure 7.Circular leveling board has increased the contact area with ground, and circular leveling board is stablized the vertical ground surface that stands on more with making the straight device of limit cooperating of cylindrical sleeve.Cylindrical sleeve 9 bottom nozzle places are provided with annular gear platform 11, and annular gear platform 11 centers arrange perforation, and sampling head 6, connecting link 5 pass cylindrical sleeve 9 and perforation during use, and connecting link 5 outside surfaces are provided with graduated scale 14.Leveling board 10 bottoms are provided with prominent point 12, and the thorn point of prominent point 12 down.The point 12 of will dashing forward during use penetrates in the soil, plays the effect of the straight device of fixing limit, prevents from limitting in use straight device to rock, and affects the soil sample collection.
Structure as shown in Figure 3-Figure 5, connecting link 5 outside surfaces are provided with external thread 13, limited location device 8 is threaded on the connecting link 5, described stop means 8 comprises spacing dop 17 and clamping ring 16, one end of spacing dop 17 is fixedly connected with clamping ring 16, clamping ring 16 inside are provided with connecting hole 18, be provided with the internal thread that is complementary with connecting link 5 surperficial external threads on the inwall of clamping ring 16, axial draw-in groove 15 is set on the sidewall of cylindrical sleeve 9, and the other end of spacing dop 17 is positioned at draw-in groove 15 and can moves up and down along draw-in groove.Spacing dop 17 is two, is symmetricly set on the both sides of clamping ring 16, and draw-in groove 15 correspondences on the sidewall of cylindrical sleeve 9 are set to two.
The xsect of sampling head 6 is c shape, and the bottom of sampling head 6 is arc, and the height of sampling head is 15cm, and the sidewall of sampling head 6 is provided with and axially falls native hole 19, and the height in native hole of falling is 12cm, and width is 15mm.Cylindrical sleeve 9 sidewalls are provided with the strip viewport.Can observe the position of stop means in cylindrical sleeve by viewport.
Described hammering handle, horizontal holding rod, connecting link and reinforced liner are solid stainless steel.
The material of described sampling head is 304 stainless steels.
A kind of sampler of Portable deep original position soil as described in Example 1, its difference be,
It is dull and stereotyped that the periphery of leveling board 10 in cylindrical sleeve 9 bottoms forms square water, and structure as shown in Figure 8.
The height of sampling head is 35cm, and the sidewall of sampling head 6 is provided with and axially falls native hole 19, and the height in native hole of falling is 33cm, and width is 20mm.
A kind of utilization is a kind of sampler of Portable deep original position soil method of taking a sample as described in Example 1, comprises that step is as follows:
(1) selects the smooth sampling spot in earth's surface, will limit straight device vertically to stand on the sampling spot, insert the prominent point of leveling board bottom in the soil layer and make close proximity to ground bottom the leveling board;
(2) according to sampling depth, adjust the position that the straight device of limit is fixed on connecting link, and alignd with the draw-in groove of cylindrical sleeve sidewall in the end of spacing dop, and sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center;
(3) the hammering handle is exerted pressure, the perforation that sampling head passes annular gear platform enters in the soil layer, and along with sampling head progresses in the soil layer, the spacing dop of stop means moves down gradually along the draw-in groove of cylindrical sleeve sidewall;
(4) observe the position movement of stop means in cylindrical sleeve from viewport, when stop means contacts with annular gear platform, stop to exert pressure, this moment, annular gear platform was limited in connecting link the position at stop means place;
(5) hold horizontal holding rod, then rotation 2-3 circle slowly extracts sampling head vertically upward between up time, has been full of the soil sample of corresponding soil layer in the sampling head;
(6) cutter that will fetch earth stretches into down in the native hole soil sample in the sampling head is released piecemeal, in the sealed bag of packing into, and recording-related information;
(7) adjust the straight position of installing of limit, alignd with the draw-in groove of cylindrical sleeve sidewall in the termination of spacing dop, sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center; The layering collection is carried out to the pedotheque of different depth in repeating step (3), (4), (5), (6).
Claims (10)
1. the sampler of a Portable deep original position soil, comprise the hammering handle that connects successively from top to bottom, threaded connector, connecting link and sampling head, described hammering handle is fixedly connected with threaded connector, the threaded one end of described connecting link is connected on the threaded connector, the other end is threaded on the sampling head, it is characterized in that, described connecting link, the limited straight device of sampling head overcoat, described limit directly device comprises cylindrical sleeve, the bottom periphery of cylindrical sleeve is provided with leveling board, described cylindrical sleeve is vertical with leveling board, described leveling board is fixedly connected with the bottom periphery of cylindrical sleeve, and described cylindrical sleeve bottom nozzle place is provided with annular gear platform, and annular gear platform center arranges perforation, described sampling head, connecting link passes cylindrical sleeve and perforation, and described connecting link outside surface is provided with graduated scale.
2. the sampler of Portable deep original position soil according to claim 1 is characterized in that, described leveling board bottom is provided with prominent point, and the thorn point of prominent point down.
3. the sampler of Portable deep original position soil according to claim 2 is characterized in that, the periphery of described leveling board in the cylindrical sleeve bottom forms circular leveling board.
4. the sampler of Portable deep original position soil according to claim 2 is characterized in that, it is dull and stereotyped that the periphery of described leveling board in the cylindrical sleeve bottom forms square water.
5. the sampler of Portable deep original position soil according to claim 1, it is characterized in that, described middle part at the hammering handle is provided with the horizontal holding rod that is horizontally through the hammering handle, the two ends of described horizontal holding rod are positioned at hammering handle both sides, be respectively arranged with two reinforced liners in the both sides of hammering handle, one end of reinforced liner is fixed on the hammering handle, and the other end is fixedly connected on the horizontal holding rod; Described hammering handle, two reinforced liners form triangle.
6. the sampler of arbitrary described Portable deep original position soil according to claim 1-5, it is characterized in that, described connecting link outside surface is provided with external thread, the limited location device is threaded on the connecting link, described stop means comprises spacing dop and clamping ring, one end of spacing dop is fixedly connected with clamping ring, clamping ring inside is provided with connecting hole, be provided with the internal thread that is complementary with connecting link surface external thread on the inwall of clamping ring, axial draw-in groove is set on the sidewall of cylindrical sleeve, and the other end of described spacing dop is positioned at draw-in groove and can moves up and down along draw-in groove.
7. the sampler of arbitrary described Portable deep original position soil according to claim 6 is characterized in that, described spacing dop is two, is symmetricly set on the both sides of clamping ring, and the draw-in groove correspondence on the sidewall of described cylindrical sleeve is set to two.
8. the sampler of Portable deep original position soil according to claim 1, it is characterized in that, the xsect of described sampling head is c shape, the bottom of sampling head is arc, the height of sampling head is 15 ~ 35cm, the sidewall of described sampling head is provided with and axially falls native hole, and the height in native hole of falling is 12 ~ 33cm, and width is 15 ~ 20mm.
9. the sampler of Portable deep original position soil according to claim 1 is characterized in that, described cylindrical sleeve sidewall is provided with the strip viewport, is provided with handle on the described cylindrical sleeve.
10. method that the sampler that utilizes the described Portable deep original position of claim 1 soil is taken a sample comprises that step is as follows:
(1) selects the smooth sampling spot in earth's surface, will limit straight device vertically to stand on the sampling spot, insert the prominent point of leveling board bottom in the soil layer and make close proximity to ground bottom the leveling board;
(2) according to sampling depth, adjust the position that the straight device of limit is fixed on connecting link, and alignd with the draw-in groove of cylindrical sleeve sidewall in the end of spacing dop, and sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center;
(3) the hammering handle is exerted pressure, the perforation that sampling head passes annular gear platform enters in the soil layer, and along with sampling head progresses in the soil layer, the spacing dop of stop means moves down gradually along the draw-in groove of cylindrical sleeve sidewall;
(4) observe the position movement of stop means in cylindrical sleeve from viewport, when stop means contacts with annular gear platform, stop to exert pressure, this moment, annular gear platform was limited in connecting link the position at stop means place;
(5) hold horizontal holding rod, then rotation 2-3 circle slowly extracts sampling head vertically upward between up time, has been full of the soil sample of corresponding soil layer in the sampling head;
(6) cutter that will fetch earth stretches into down in the native hole soil sample in the sampling head is released piecemeal, in the sealed bag of packing into, and recording-related information;
(7) adjust the straight position of installing of limit, alignd with the draw-in groove of cylindrical sleeve sidewall in the termination of spacing dop, sampling head and connecting link are together stretched in the cylindrical sleeve, sampling head aligns with the perforation at annular gear platform center; The layering collection is carried out to the pedotheque of different depth in repeating step (3), (4), (5), (6).
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| CN201210583050.8A CN103063471B (en) | 2012-12-27 | 2012-12-27 | Portable sampling device for deep in situ soil and usage method thereof |
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| CN201210583050.8A CN103063471B (en) | 2012-12-27 | 2012-12-27 | Portable sampling device for deep in situ soil and usage method thereof |
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| CN110487590A (en) * | 2019-09-03 | 2019-11-22 | 生态环境部南京环境科学研究所 | A kind of soil collecting device administered for grassland |
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