CN114593943A - Mining area farmland heavy metal soil plant roots section sampling device - Google Patents

Mining area farmland heavy metal soil plant roots section sampling device Download PDF

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Publication number
CN114593943A
CN114593943A CN202210276640.XA CN202210276640A CN114593943A CN 114593943 A CN114593943 A CN 114593943A CN 202210276640 A CN202210276640 A CN 202210276640A CN 114593943 A CN114593943 A CN 114593943A
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China
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fixedly connected
plate
connecting rod
heavy metal
sampling device
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Inventor
羊礼敏
刘赵文
陆志敏
傅妍芳
何小青
贾莉
周睿劼
姚怀宇
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Chizhou University
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Chizhou University
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Priority to CN202210276640.XA priority Critical patent/CN114593943A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/04Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

The invention relates to the technical field of root sampling, in particular to a plant root profile sampling device for heavy metal soil in a farmland in a mining area, which comprises an outer cylinder, wherein the lower end of the outer cylinder is fixedly connected with an outer half drill bit; a rotating rod is sleeved in the outer barrel, and the upper end of the rotating rod extends to the outside of the outer barrel and is fixedly connected with an anti-dislocation mechanism; the lower end of the rotating rod extends to the outside of the outer cylinder and is connected with the inner half bit through threads, and the inner half bit is movably connected with the outer half bit; and the outer circular surface of the outer barrel is sleeved with a pressing mechanism. Compared with the traditional method of pressing down by depending on a rotating handle and using hammering, the method has the advantages that the pressing mechanism 2 is arranged, the pressing mechanism 2 presses by utilizing the lever principle, labor is saved, and the defects that a hammer swinging method is unstable and easily hurts hands and needs certain force to operate in the hammering pressing method are overcome, so that the root system sampler can save more labor during sampling, the sampling efficiency is improved, and the practicability is higher.

Description

Mining area farmland heavy metal soil plant roots section sampling device
Technical Field
The invention relates to the technical field of root system sampling, in particular to a plant root system profile sampling device for heavy metal soil in a farmland in a mining area.
Background
The ore after the mining process, waste slag, tailings, waste water, waste liquid and waste gas generated in the smelting of the ore can cause environmental pollution. Particularly, the discharge and leakage of toxic elements and the random stacking of wastes cause heavy metal substances in waste residues to be leached and infiltrated into soil to cause the pollution to the soil, when the heavy metal pollution is accumulated in the soil to a certain degree, the heavy metal pollution can generate toxic and destructive effects on a soil-plant system, and particularly, the heavy metal pollution can be enriched and absorbed by plants and enters a food chain, so that the potential risk of damaging the human health is caused.
Aiming at the heavy metal pollution of soil, two treatment methods exist at present, one is to change the existing state of heavy metal, reduce the activity of the heavy metal, passivate the heavy metal, separate from a food chain and reduce the toxicity of the heavy metal; the other method is to utilize special plants to absorb heavy metals in the soil and then remove the plants, so as to achieve the purpose of reducing the heavy metals in the soil, the plant restoration technology is cheap, easy to implement and easy to accept by the public, and crops are planted differentially and selectively according to the characteristics of the absorption effect of different crops on the heavy metal elements, so that the pollution of the heavy metals in the soil to agricultural products is reduced, and the polluted farmland is reasonably developed and utilized.
The contaminated plants planted by the phytoremediation technology can also obtain the heavy metal pollution condition of the soil through research on root systems of the contaminated plants, so as to obtain related research data, the plant root system sampling is mainly divided into a full-excavation method and a root drilling method, the full-excavation method has large workload and seriously damages the soil, and therefore the method is not frequently adopted; the root drilling method is a common way of root sampling, and as shown in fig. 8, is a split type root sampler, which can ensure the integrity of soil and root system by arranging a split type drill bit.
The existing split root sampler has the defects that firstly, the drill bit is pressed downwards by a rotating handle, so that the sampler is labor-consuming, and a hammering pressing method which can be used simultaneously also has the defects that a hammer is unstable and easy to hurt hands and needs certain force to operate.
Therefore, a plant root system profile sampling device for heavy metal soil in a farmland in a mining area is provided.
Disclosure of Invention
The invention aims to provide a plant root system profile sampling device for heavy metal soil in a farmland in a mining area, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a plant root system profile sampling device for heavy metal soil in a mining area farmland comprises an outer barrel, wherein the lower end of the outer barrel is fixedly connected with an outer half drill bit; a rotating rod is sleeved in the outer barrel, and the upper end of the rotating rod extends to the outside of the outer barrel and is fixedly connected with an anti-dislocation mechanism; the lower end of the rotating rod extends to the outside of the outer cylinder and is connected with the inner half drill bit through threads, and the inner half drill bit is movably connected with the outer half drill bit; and the outer circular surface of the outer barrel is sleeved with a pressing mechanism.
Preferably, the pressing mechanism comprises a sleeve, a connecting rod, a height adjusting mechanism and a handle; the sleeve is sleeved on the outer circular surface of the outer cylinder, and the top side of the outer circular surface of the sleeve is fixedly connected with the connecting rod; one end of the connecting rod is fixedly connected with a height adjusting mechanism; the upper end of the height adjusting mechanism is rotatably connected with the handle through a hinge.
Preferably, the height adjusting mechanism comprises an upper connecting rod, a lower connecting rod, a socket, a limiting plate, a locking bolt, an inserting plate and a supporting plate; one end of the outer circular surface of the connecting rod is fixedly connected with the lower connecting rod; the outer surface of the lower connecting rod is provided with uniformly distributed jacks; a plug board is inserted in the socket; one end of the inserting plate is fixedly connected with the abutting plate; the other end of the inserting plate is in threaded connection with a locking bolt, and one end of the locking bolt is fixedly connected with a limiting plate; the part of the interior of the lower connecting rod, which is positioned at the upper end of the inserting plate, is movably connected with the upper connecting rod, and the upper end of the upper connecting rod extends to the outer side of the lower connecting rod and is rotatably connected with the handle.
Preferably, the bottom side of the outer circular surface of the sleeve is symmetrically and fixedly connected with two foot pressing plates for stabilizing the device when the pressing mechanism is used.
Preferably, the vertical plane where the two foot pressing plates are located is overlapped with the vertical plane where the handle rotates and moves through the hinge.
Preferably, the dislocation preventing mechanism comprises a quadrangular frustum pyramid and a limiting groove; the upper end of the rotating rod extends to the outside of the outer cylinder and is fixedly connected with the quadrangular frustum pyramid; limiting grooves are formed in the middle positions of four side surfaces of the quadrangular frustum pyramid; the width of the limiting groove is larger than that of the handle, and the center of the limiting groove is also positioned on a vertical surface where the handle rotates and moves through the hinge.
Preferably, the included angle range of the horizontal plane where the outer side surface of the quadrangular frustum pyramid is located and the bottom surface of the quadrangular frustum pyramid is thirty degrees to forty-five degrees, so that the handle can be better attached to the quadrangular frustum pyramid in the pressing process.
Preferably, the inner half-bit comprises a half-cylinder, a top plate and a T-shaped flange; the upper end of the semi-cylinder is fixedly connected with a top plate; the top plate is connected with one end of the rotating rod extending to the outside of the outer cylinder through threads; one side of the outer circular surface of the top plate, which is close to the semi-cylinder body, is fixedly connected with a T-shaped flange; a movable groove is formed in the position, corresponding to the T-shaped flange, of the inner circular surface of the outer half drill bit; the outer half drill bit and the inner half drill bit are rotatably connected with the T-shaped flange through the movable groove.
Preferably, one side of the outer circular surface of the top plate, which is far away from the semi-cylinder body, is fixedly connected with the blocking plate; the barrier plate is a rubber component.
Preferably, the outer circular surface of the blocking plate is coated with a layer of epoxy resin wear-resistant coating for improving the wear resistance of the blocking plate and prolonging the service life of the blocking plate.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the traditional methods of pressing down by depending on a rotating handle and using hammering to press down, the method has the advantages that the pressing mechanism is arranged, the pressing mechanism presses by utilizing the lever principle, labor is saved, the defects that a swinging hammer is unstable and easily hurts hands and needs certain force to operate in the hammering pressing down method are overcome, the root system sampler can save more labor during sampling, the sampling efficiency is improved, and the practicability is higher.
2. Although the split-type sampler adopts the split-type structure, the sampling and the unloading of the soil sample can be completed without assembling and disassembling during use, compared with the prior art, the drilling efficiency is higher, the characteristics of the soil and the root system can not be damaged, the advantages of the split-type sampler are kept, and the problem that the existing split-type sampler is complicated to assemble and disassemble is solved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional structural view of the present invention;
FIG. 3 is a cross-sectional structural view of the height adjustment mechanism of the present invention;
FIG. 4 is a partial structural view of the height adjustment mechanism of the present invention;
FIG. 5 is a structural view of the anti-dislocation mechanism of the present invention;
FIG. 6 is a structural view of the inner half bit of the present invention;
FIG. 7 is an enlarged structural view taken at A in FIG. 2 of the present invention;
fig. 8 is a comparative prior art of the present invention.
In the figure: 1. an outer cylinder; 2. a pressing mechanism; 21. a sleeve; 22. a connecting rod; 23. a height adjustment mechanism; 231. an upper connecting rod; 232. a lower connecting rod; 233. a socket; 234. a limiting plate; 235. locking the bolt; 236. inserting plates; 237. a resisting plate; 24. a handle; 25. a foot pressing plate; 3. a dislocation prevention mechanism; 31. a quadrangular frustum pyramid; 32. a limiting groove; 5. an outer half bit; 6. an inner half bit; 61. a half cylinder; 62. a barrier plate; 63. a top plate; 64. a T-shaped flange; 7. a rotating rod; 8. a movable groove.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, the present invention provides a technical solution of a plant root system profile sampling device for heavy metal soil in a farmland in a mining area:
a plant root system profile sampling device for heavy metal soil in a farmland in a mining area, which comprises an outer cylinder 1,
the lower end of the outer cylinder 1 is fixedly connected with an outer half drill bit 5; a rotating rod 7 is sleeved in the outer barrel 1, and the upper end of the rotating rod 7 extends to the outside of the outer barrel 1 and is fixedly connected with the anti-dislocation mechanism 3; the lower end of the rotating rod 7 extends to the outside of the outer cylinder 1 and is connected with the inner half drill bit 6 through threads, and the inner half drill bit 6 is movably connected with the outer half drill bit 5; and the outer circular surface of the outer cylinder 1 is sleeved with a pressing mechanism 2.
As an embodiment of the present invention, as shown in fig. 2, the pressing mechanism 2 includes a sleeve 21, a connecting rod 22, a height adjusting mechanism 23, a handle 24, and a foot pressing plate 25; the sleeve 21 is sleeved on the outer circular surface of the outer cylinder 1, and the top side of the outer circular surface of the sleeve 21 is fixedly connected with the connecting rod 22; one end of the connecting rod 22 is fixedly connected with a height adjusting mechanism 23; the upper end of the height adjusting mechanism 23 is rotatably connected with a handle 24 through a hinge.
Aiming at the problems of the prior split sampler that the pressing process of the drill bit is more laborious and troublesome, and the assembly and disassembly of the sampler are more time-consuming and laborious and less efficient, when the sampler is used for pressing and drilling root soil, the invention firstly inserts the combination of the inner half drill bit 6 and the outer half drill bit 5 into the soil to be sampled by using the outer cylinder 1, after the combination is inserted into the soil surface, the foot press plate 25 is stepped on by feet to press the combination of the inner half drill bit 6 and the outer half drill bit 5 into the soil, after the combination completely enters the soil, as the sleeve 21 is sleeved outside the outer cylinder 1, the two are movably connected, at the moment, under the barrier action of the soil, the pressing mechanism 2 and the foot press plate 25 are left above the soil, and the combination of the inner half drill bit 6 and the outer half drill bit 5 and the rotating rod 7 continue to go deep into the soil after being pressed, at the moment, the pressing mechanism 2 starts to work, in work, firstly, the height adjusting mechanism 23 is adjusted, the handle 24 is higher than the current horizontal plane where the top end of the outer barrel 1 is located, after the adjustment is completed, the foot pressing plate 25 is treaded by two feet, then, one end of the handle 24 is pressed downwards until the handle rod of the handle 24 is tightly abutted to the top end of the outer barrel 1, at the moment, a fulcrum is formed at the top end of the height adjusting mechanism 23, the rotating rod 7 can be easily pressed downwards by the handle 24 by utilizing the lever principle, the combination body of the inner half drill bit 6 and the outer half drill bit 5 is driven to be inserted into the soil deeper, through the arrangement of the pressing mechanism 2, compared with the traditional method of pressing downwards by depending on the rotating handle and using a hammering, the pressing mechanism 2 is labor-saving and simultaneously overcomes the defects that a swinging hammer is unstable and easily hurts hands and needs a certain force to operate in the hammering pressing method, so that the root system sampler can be more labor-saving when in sampling, the sampling efficiency is improved, and the practicability is higher.
As an embodiment of the present invention, as shown in fig. 3 to 4, the height adjusting mechanism 23 includes an upper link 231, a lower link 232, a socket 233, a limiting plate 234, a locking bolt 235, an insert plate 236, and an abutting plate 237; one end of the outer circular surface of the connecting rod 22 is fixedly connected with a lower connecting rod 232; the outer surface of the lower connecting rod 232 is provided with evenly distributed inserting holes 233; an inserting plate 236 is inserted into the inserting hole 233; one end of the inserting plate 236 is fixedly connected with a resisting plate 237; the other end of the inserting plate 236 is in threaded connection with a locking bolt 235, and one end of the locking bolt 235 is fixedly connected with the limiting plate 234; the part of the interior of the lower connecting rod 232, which is positioned at the upper end of the inserting plate 236, is movably connected with the upper connecting rod 231, and the upper end of the upper connecting rod 231 extends to the outer side of the lower connecting rod 232 and is rotatably connected with the handle 24.
The height of the pressing mechanism 2 is adjusted several times through the height adjusting mechanism 23, so that the handle 24 is always positioned above the rotating rod 7, to ensure that the pressing mechanism 2 can normally press the rotating rod 7 downwards, when the height adjusting mechanism 23 is used, the limiting plate 234 is controlled to unscrew the locking bolt 235 until the combination of the limiting plate 234 and the locking bolt 235 is taken out of the insert plate 236, then the combination of the insert plate 236 and the abutting plate 237 is taken out of the socket 233 formed in the lower connecting rod 232, then the combination of the insert plate 236 and the abutting plate 237 is inserted into the socket 233 with a proper height according to a required height, the limiting plate 234 is controlled to tighten the locking bolt 235, the combination of the insert plate 236 and the abutting plate 237 and the lower connecting rod 232 are locked, while the upper connecting rod 231 is not connected with the lower connecting rod 232 and is always positioned above the insert plate 236, which is equivalent to the upper connecting rod 231 presses the insert plate 236 when being stressed, thereby completing the height adjustment of the pressing mechanism 2.
As an embodiment of the present invention, as shown in fig. 1 to 2, two foot pressing plates 25 are symmetrically and fixedly connected to the bottom side of the outer circular surface of the sleeve 21 for stabilizing the device when the pressing mechanism 2 is used.
As an embodiment of the present invention, as shown in fig. 1 to 2, a vertical plane on which the two foot pressure plates 25 are located coincides with a vertical plane on which the handle 24 is pivotally moved by the hinge.
Pressing means 2 need operating personnel both feet to stand and stabilize pressing means 2 on foot clamp plate 25 when using, prevents that it from empting, and at this moment, sets up two the perpendicular that foot clamp plate 25 located passes through the coincidence of the perpendicular of hinge rotation activity with handle 24, can more laminate the human body design, and the convenience is when both feet stand on foot clamp plate 25, and both hands can be better to the 24 application of force of handle for operating personnel uses more conveniently.
As an embodiment of the present invention, as shown in fig. 5, the anti-displacement mechanism 3 includes a quadrangular frustum 31 and a limiting groove 32; the upper end of the rotating rod 7 extends to the outside of the outer cylinder 1 and is fixedly connected with a quadrangular frustum 31; limiting grooves 32 are formed in the middle positions of four side surfaces of the quadrangular frustum pyramid 31; the width of the limiting groove 32 is larger than that of the handle 24, and the center position of the limiting groove 32 is also positioned on the vertical surface of the handle 24 which can rotate and move through the hinge.
When the pressing mechanism 2 is used, downward pressure is applied to the top end of the rotating rod 7 by using the handle of the handle 24, so that the combination of the inner half-drill 6 and the outer half-drill 5, and the rotary rod 7, continues to penetrate into the soil after being pressed, while the top end of the rotary rod 7 is narrower, the invention is characterized in that the dislocation is easily caused by the separation of the handle 24 and the top end of the rotating rod 7 when the handle is pressed, so that the operation of the pressing mechanism 2 is blocked, the dislocation preventing mechanism 3 is arranged at the top end of the rotating rod 7, the quadrangular frustum 31 is fixedly connected at the upper end of the rotating rod 7, the middle positions of the four side surfaces of the quadrangular frustum 31 are all provided with the limiting groove 32, the handle rod of the handle 24 is just placed in the limiting groove 32 when contacting with the quadrangular frustum 31, can utilize spacing of spacing groove 32 for both contacts more stably, can prevent that handle 24 from breaking away from the contact with the top of bull stick 7, and then has guaranteed the normal work of device.
As an embodiment of the present invention, as shown in fig. 5, the outer side surface of the quadrangular frustum 31 has an included angle ranging from thirty degrees to forty-five degrees with respect to the horizontal plane of the bottom surface thereof, so that the handle 24 can better adhere to the quadrangular frustum 31 during the pressing down process.
As an embodiment of the present invention, as shown in fig. 6 and 7, the inner half bit 6 includes a half cylinder 61, a top plate 63, and a T-shaped flange 64; the upper end of the semi-cylinder body 61 is fixedly connected with a top plate 63; the top plate 63 is connected with one end of the rotating rod 7 extending to the outside of the outer cylinder 1 through threads; one side of the outer circular surface of the top plate 63, which is close to the semi-cylinder 61, is fixedly connected with a T-shaped flange 64; a movable groove 8 is formed in the position, corresponding to the T-shaped flange 64, of the inner circular surface of the outer half drill 5; the outer half-drill 5 and the inner half-drill 6 are rotatably connected with the T-shaped flange 64 through the movable groove 8.
Although the drill bit with the subdivision type in the prior art can obtain a representative undisturbed soil sample and a representative root system, the drill bit drill rod with the subdivision structure is adopted, so that the drill bit drill rod is complex in structure and needs more connecting pieces such as bolts for connection, and further, the assembly and disassembly of the sampler are time-consuming and labor-consuming, and the efficiency is lower; specifically, when in use, the operation process is as follows: when taking a sample, rotate half barrel 61, drive T type flange 64 and remove in activity groove 8, half barrel 61 is 5 outwards rotated to the outer half drill bit relatively, until both rotate to the opposite face, form complete cylinder tube-shape assembly, at this moment, can gather soil and root system through pressing mechanism 2 pushing down, treat to gather the completion back, through rotating anti-dislocation mechanism 3, anti-dislocation mechanism 3 drives bull stick 7 and rotates, and then bull stick 7 drives roof 63 and half barrel 61 toward 5 inside rotations of outer half drill bit, until both coincidences, at this moment, the cylinder tube-shape assembly of both combinations only has half to be in the encirclement, can be very convenient take out soil and root system through half breach.
As an embodiment of the present invention, as shown in fig. 6, a blocking plate 62 is fixedly connected to a side of the outer circular surface of the top plate 63 away from the semi-cylinder 61; the blocking plate 62 is a rubber member.
When taking a sample, owing to receive the extrusion of soil, inside partial soil can get into movable groove 8, lead to unable realization relative rotation between outer half bit 5 and the interior half bit 6 for the device is inefficacy, and links firmly baffler 62 through the one side that the outer disc of roof 63 kept away from half barrel 61, and when taking a sample, soil can receive baffler 62, and then can prevent that soil from moving about inside groove 8, having guaranteed the normal operating of device.
As an embodiment of the present invention, as shown in fig. 6, an epoxy wear-resistant coating is coated on an outer circumferential surface of the barrier plate 62 to improve the wear-resistant performance of the barrier plate 62 and prolong the service life thereof.
The using method comprises the following steps: firstly, during sampling, the semi-cylinder 61 is rotated to drive the T-shaped flange 64 to move in the movable groove 8, the semi-cylinder 61 rotates outwards relative to the outer semi-drill 5 until the two rotate to opposite surfaces to form a complete cylindrical combination, the combination of the inner semi-drill 6 and the outer semi-drill 5 is inserted above soil to be sampled by using the outer cylinder 1, after the combination is inserted into the soil surface, the foot pressing plate 25 is stepped on by feet to press the combination of the inner semi-drill 6 and the outer semi-drill 5 into the soil, after the combination completely enters the soil, as the sleeve 21 is sleeved outside the outer cylinder 1, the two are movably connected, at the moment, under the blocking effect of the soil, the pressing mechanism 2 and the foot pressing plate 25 are left above the soil, and the combination of the inner semi-drill 6 and the outer semi-drill 5 and the rotating rod 7 continue to go deep into the soil after being pressed, at the moment, the pressing mechanism 2 starts to work, when the device works, firstly, the height adjusting mechanism 23 is adjusted, the handle 24 is higher than the horizontal plane where the top end of the current outer cylinder 1 is located, after the adjustment is finished, the feet step on the foot pressing plate 25, then one end of the handle 24 is pressed downwards until the handle rod of the handle 24 is tightly pressed against the top end of the outer cylinder 1, at the moment, the top end of the height adjusting mechanism 23 forms a fulcrum, the handle 24 can press the rotating rod 7 downwards easily by utilizing the lever principle to drive the combination of the inner half bit 6 and the outer half bit 5 to be inserted into the deeper soil, after the collection is finished, the anti-dislocation mechanism 3 drives the rotating rod 7 to rotate by rotating the anti-dislocation mechanism 3, the rotating rod 7 drives the top plate 63 and the half-cylinder 61 to rotate towards the interior of the outer half-drill 5 until the two are overlapped, at this time, only half of the cylindrical combination body formed by combining the two components is surrounded, and soil and root systems can be conveniently taken out through the other half of the gap.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 plant root system profile sampling device for heavy metal soil in a farmland in a mining area comprises an outer cylinder (1),
it is characterized in that the preparation method is characterized in that,
the lower end of the outer cylinder (1) is fixedly connected with an outer half drill bit (5); a rotating rod (7) is sleeved in the outer barrel (1), and the upper end of the rotating rod (7) extends to the outside of the outer barrel (1) and is fixedly connected with an anti-dislocation mechanism (3); the lower end of the rotating rod (7) extends to the outside of the outer cylinder (1) and is connected with the inner half bit (6) through threads, and the inner half bit (6) is movably connected with the outer half bit (5); and the outer circular surface of the outer cylinder (1) is sleeved with a pressing mechanism (2).
2. The mining area farmland heavy metal soil plant root system section sampling device of claim 1, characterized in that: the pressing mechanism (2) comprises a sleeve (21), a connecting rod (22), a height adjusting mechanism (23) and a handle (24); the sleeve (21) is sleeved on the outer circular surface of the outer cylinder (1), and the top side of the outer circular surface of the sleeve (21) is fixedly connected with the connecting rod (22); one end of the connecting rod (22) is fixedly connected with a height adjusting mechanism (23); the upper end of the height adjusting mechanism (23) is rotatably connected with a handle (24) through a hinge.
3. The mining area farmland heavy metal soil plant root system section sampling device of claim 2, characterized in that: the height adjusting mechanism (23) comprises an upper connecting rod (231), a lower connecting rod (232), a socket (233), a limiting plate (234), a locking bolt (235), an inserting plate (236) and a resisting plate (237); one end of the outer circular surface of the connecting rod (22) is fixedly connected with a lower connecting rod (232); the outer surface of the lower connecting rod (232) is provided with evenly distributed inserting holes (233); an inserting plate (236) is inserted in the inserting hole (233); one end of the inserting plate (236) is fixedly connected with a butting plate (237); the other end of the inserting plate (236) is in threaded connection with a locking bolt (235), and one end of the locking bolt (235) is fixedly connected with the limiting plate (234); the part of the interior of the lower connecting rod (232) which is positioned at the upper end of the inserting plate (236) is movably connected with the upper connecting rod (231), and the upper end of the upper connecting rod (231) extends to the outer side of the lower connecting rod (232) and is rotatably connected with the handle (24).
4. The mining area farmland heavy metal soil plant root system section sampling device of claim 2, characterized in that: two foot pressing plates (25) are symmetrically and fixedly connected to the bottom side of the outer circular surface of the sleeve (21) and used for stabilizing the device when the pressing mechanism (2) is used.
5. The mining area farmland heavy metal soil plant root system section sampling device of claim 4, characterized in that: the vertical plane where the two foot pressing plates (25) are positioned is superposed with the vertical plane where the handle (24) rotates through the hinge.
6. The mining area farmland heavy metal soil plant root system profile sampling device according to claim 2, characterized in that: the anti-dislocation mechanism (3) comprises a quadrangular frustum pyramid (31) and a limiting groove (32); the upper end of the rotating rod (7) extends to the outside of the outer cylinder (1) and is fixedly connected with a quadrangular frustum pyramid (31); limiting grooves (32) are formed in the middle positions of four side surfaces of the quadrangular frustum pyramid (31); the width of the limiting groove (32) is larger than that of the handle (24), and the center position of the limiting groove (32) is also positioned on a vertical plane where the handle (24) rotates and moves through the hinge.
7. The mining area farmland heavy metal soil plant root system section sampling device of claim 6, characterized in that: the included angle range of the outer side surface of the quadrangular frustum pyramid (31) and the horizontal plane where the bottom surface of the quadrangular frustum pyramid is located is thirty degrees to forty-five degrees, so that the handle (24) can be better attached to the quadrangular frustum pyramid (31) in the pressing process.
8. The mining area farmland heavy metal soil plant root system section sampling device of claim 1, characterized in that: the inner half-bit (6) comprises a half-cylinder body (61), a top plate (63) and a T-shaped flange (64); the upper end of the semi-cylinder body (61) is fixedly connected with a top plate (63); the top plate (63) is connected with one end of the rotating rod (7) extending to the outside of the outer cylinder (1) through threads; one side of the outer circular surface of the top plate (63) close to the semi-cylinder body (61) is fixedly connected with a T-shaped flange (64); a movable groove (8) is formed in the position, corresponding to the T-shaped flange (64), of the inner circular surface of the outer half drill bit (5); the outer half drill bit (5) and the inner half drill bit (6) are rotatably connected with the T-shaped flange (64) through a movable groove (8).
9. The mining area farmland heavy metal soil plant root system profile sampling device according to claim 8, characterized in that: one side of the outer circular surface of the top plate (63) far away from the semi-cylinder body (61) is fixedly connected with a blocking plate (62); the barrier plate (62) is a rubber component.
10. The mining area farmland heavy metal soil plant root system section sampling device of claim 9, characterized in that: the outer circle surface of the blocking plate (62) is coated with a layer of epoxy resin wear-resistant coating, so that the wear resistance of the blocking plate (62) is improved, and the service life of the blocking plate is prolonged.
CN202210276640.XA 2022-03-21 2022-03-21 Mining area farmland heavy metal soil plant roots section sampling device Pending CN114593943A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115855569A (en) * 2023-02-28 2023-03-28 黑龙江省农业科学院经济作物研究所 Complete sampling device for removing soil of soybean root system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115855569A (en) * 2023-02-28 2023-03-28 黑龙江省农业科学院经济作物研究所 Complete sampling device for removing soil of soybean root system
CN115855569B (en) * 2023-02-28 2023-05-02 黑龙江省农业科学院经济作物研究所 A complete sampling device that is used for soybean root system to remove soil

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