CN102128734A - Automatic sampler for soil solution on different soil depths - Google Patents
Automatic sampler for soil solution on different soil depths Download PDFInfo
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- CN102128734A CN102128734A CN 201010586547 CN201010586547A CN102128734A CN 102128734 A CN102128734 A CN 102128734A CN 201010586547 CN201010586547 CN 201010586547 CN 201010586547 A CN201010586547 A CN 201010586547A CN 102128734 A CN102128734 A CN 102128734A
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Abstract
The invention provides an automatic sampler for soil solution on different soil depths. The sampler consists of a sampling pipe, a suction device, a sampling chamber and an instrument control chamber. The connection relation among the components is that: a trunk pipe on the sampling pipe is communicated with the lower part of the suction device; the suction device is connected with the sampling chamber through a water inlet pipe arranged on the suction device; a stepping motor of the instrument control chamber is connected with the rotating shaft of the sampling chamber through a synchronous belt wheel so as to realize rotation of the rotating shaft; the sampling pipe consists of the trunk pipe and a side pipe; the suction device is a vacuum pump; the sampling chamber consists of the water inlet pipe, the rotating shaft, a sampling base and a sampling cup; and the instrument control chamber mainly comprises the stepping motor, a stepping motor controller and a storage battery. By the automatic sampler, the sampling of the soil solution on the different soil depths is representative, the sampling accuracy can be guaranteed, and high automation can be realized. In the technical field of outdoor soil sampling, the automatic sampler for soil solution on different soil depths has a good practical value and a wide application prospect.
Description
(1) technical field
The present invention relates to a kind of soil liquid harvester, relate in particular to a kind of soil solution of different soil layer depth automatic sampler that uses in the open air.Belong to the soil sampling technical field.
(2) background technology
The soil liquid is very important in the research of soil nutrient and moisture, because its can make directly contact between soil and the root system of plant on the one hand, plays an important role in the migration of soil material and drip washing again on the other hand.The soil liquid obtained several different methods, but can be classified as destructive sampling, non-destructive sampling.In general, destructive sampling need be taken out (also need carry out air-dry and moistening more sometimes) from original position with pedotheque, and the chemical composition and the balance of the soil liquid easily change, and can't carry out long-term Position Research, and this method of sampling has significant limitation.And non-destructive sampling is by burying equipment such as ceramic pipe underground, and the sampling of long-term in position location can be studied the dynamic change of the soil liquid over a period to come.
Current, soil original position Sampling techniques obtain bigger progress, as application number 200610088326.X, name is called a kind of patent of invention of in-situ continuous collecting apparatus for soil solution, provide a kind of making simple, extraction speed is fast, and light little practicality can be gathered the device of the soil liquid on the same soil profile.Application number 200920172441.4 for another example, and name is called the utility model patent of porous type soil in-situ solution extraction apparatus, introduced a kind of simple in structure, cost is low, and is durable in use, the conveniently soil liquid sampler of taking a sample.
For making sampling have more whole representativeness, often need to choose the soil liquid of different section on the vertical direction.As application number 200710011678.X, name is called the patent of invention of batch collecting device of soil solution of different soil layer depth, the soil liquid sampler of leaky pipe, liquid-collecting bottle, surge flask and negative pressure device that a kind of bottom is provided with pot clay end is provided, the one end sealing of catheter is plugged in the leaky pipe, and the other end is plugged in liquid-collecting bottle; Thereby the surge flask that is connected with negative pressure device is connected with liquid-collecting bottle by the DLT device of air and realizes sampling.This invention is simple in structure, easy to operate, once can gather a plurality of samples by the DLT device of air, the collecting efficiency height.Though yet above-mentioned patent has realized the soil solution of different soil layer depth sampling, but all do not relate to batch, automation collection, be difficult to satisfy the automatic sampling needs of field soil solution, develop a kind of novel automatic sampling apparatus at times, make it to be applied to field, unattended sampling, the research of the soil liquid is had very important significance.
(3) summary of the invention
1, purpose:
The object of the present invention is to provide a kind of soil solution of different soil layer depth automatic sampler (hereinafter to be referred as automatic sampler), this automatic sampler automaticity height, it can realize timely, accurate, the continuous collection of the soil liquid.
2, technical scheme:
A kind of soil solution of different soil layer depth automatic sampler of the present invention, it is made up of sampling pipe, aspirator, sampler chamber and instrument pulpit.Position annexation between them is: the main pipe on the sampling pipe is connected with the aspirator bottom; Aspirator links to each other with sampler chamber by the water inlet pipe that is installed on it; The stepper motor of instrument pulpit is connected with the rotating shaft of sampler chamber by synchronous pulley, thereby realizes the rotation of rotating shaft.
Described sampling pipe is made up of main pipe and side pipe, and wherein side pipe is arranged on the main pipe both sides, and vertical equidistantly layout, and the two ends of side pipe has circular porcelain filter.This main pipe is L shaped bend pipe, and an end links to each other with aspirator, other end sealing.The equidistant punching in the both sides of main pipe links to each other with side pipe, and its pitch of holes is according to the decision of sampling needs; Make the suction force of each side pipe identical as far as possible; This side pipe one end links to each other with main pipe, and the other end links to each other with porcelain filter, and the length of side pipe is by the location arrangements decision of sampled point; This porcelain filter is: by the micropore right cylinder that stupalith is made, its length is by concrete sampling structure decision, and it mainly acts on is the materials such as the grains of sand that filter in the soil liquid; Whole sampling pipe is embedded in the soil, and the other end of outlet links to each other with aspirator.
Described aspirator is a vacuum pump.The one end links to each other with sampling pipe, and the other end links to each other with sampler chamber; The power of vacuum pump is determined by the site test situation.
Described sampler chamber is made up of water inlet pipe, rising pipe, rotating shaft, sampling cup and sampling cup.Relation is therebetween: rotating shaft is positioned at the center of sampler chamber by a pair of roller bearings that is fixed on sampler chamber bottom and sampling cup center, the bottom of rotating shaft links to each other by synchronous pulley with stepper motor in the instrument pulpit, is driven the rotation that realizes rotating shaft by stepper motor.Water inlet pipe is what to separate with rotating shaft, does not rotate with rotating shaft; This rising pipe with rotating shaft rotation synchronously and water delivering orifice over against above the center of sampling cup; A plurality of samplings cup is rounded to be arranged on the sampling cup, and the water delivering orifice that makes rising pipe is over against above the center of sampling cup.This water inlet pipe one end links to each other with aspirator, the other end (water side) be positioned at rotating shaft directly over; The center that this rotating shaft is positioned at sampler chamber is by a pair of roller bearings that is fixed on sampler chamber bottom and sampling face plate center, and the bottom of rotating shaft links to each other by synchronous pulley with stepper motor in the instrument pulpit, is driven the rotation of realization rotating shaft by stepper motor; This sampling cup is discoid; This rising pipe is the flexible pipe of PVC material;
Described instrument pulpit mainly is made up of stepper motor, controllor for step-by-step motor and accumulator.Relation is therebetween: the quantity and the frequency of the pulse signal that the adjustment controllor for step-by-step motor sends, angle and rotational frequency that the control step motor rotates, thereby the angle θ that control rotating shaft is rotated when Fixed Time Interval T, be every rotation, make the water delivering orifice of rising pipe be in the center of sampling cup through the fixed interval time T.This stepper motor be two phase mixing 20mm stepper motor, controllor for step-by-step motor is a formula able to programme, can write with different experiments scheme corresponding control programs and control sampling, this accumulator is a forward maintenance-free lead accumulator battery, this just makes soil liquid sampling realize robotization, to satisfy different users's experiment demand.
Wherein, this main pipe, side pipe are polyester tube, and the diameter of main pipe is 3-5 a times of side pipe;
Wherein, this vacuum pump is the twin-stage rotary-vane vaccum pump;
Wherein, this water inlet pipe is that diameter is 18-22mm, the flexible pipe of PVC material;
Wherein, this rising pipe is that diameter is the PVC material flexible pipe of 18-22mm;
Wherein, the capacity of this sampling cup is 250ml, and height is 10-12cm;
Wherein, the model of this accumulator is the 46B24L type;
Wherein, the model of this stepper motor is 42BYG;
Wherein, this rotating shaft is that stainless steel and diameter are 18-22mm;
Wherein, this sampling cup is the PVC material.
3, advantage and good effect
A kind of soil solution of different soil layer depth automatic sampler of the present invention, its advantage and good effect are: the present invention can realize that not only the soil solution of different soil layer depth sampling is representative, and can guarantee the accuracy of sampling, and can realize increasingly automated.Be applicable to the experiment of the field acquisition soil liquid.
(4) description of drawings
The front view of Fig. 1 automatic sampler of the present invention
The vertical view of Fig. 2 automatic sampler of the present invention
Symbol description is as follows among the figure:
1, porcelain filter; 2, main pipe; 3, side pipe; 4, aspirator; 5, water inlet pipe; 6, rotating shaft; 7, rising pipe; 8, sampling cup; 9, synchronous pulley; 10, stepper motor; 11, accumulator; 12 sampling cups; 13, controllor for step-by-step motor.
(5) embodiment for example
Below in conjunction with accompanying drawing patent of the present invention is described in detail.
As shown in Figure 1, a kind of soil solution of different soil layer depth automatic sampler of the present invention is made up of sampling pipe, aspirator, sampler chamber, instrument pulpit.Position annexation between them is: the main pipe 2 on the sampling pipe is connected with aspirator 4 bottoms; Aspirator 4 links to each other with sampler chamber by the water inlet pipe 5 that is installed on it; The stepper motor 10 of instrument pulpit is connected with the rotating shaft 6 of sampler chamber by synchronous pulley 9, thereby realizes the rotation of rotating shaft 6.
Described sampling pipe is made up of main pipe 2 and side pipe 3, and side pipe 3 is arranged on main pipe 2 both sides, and vertical equidistantly layout, and the two ends of side pipe has round ceramic filtrator 1.This porcelain filter 1 is the micropore right cylinder of being made by stupalith, and its length is 2-3cm, and it mainly acts on is the materials such as the grains of sand that filter in the soil liquid; This main pipe 2 is that diameter is the polyester tube of 50mm, and the one end links to each other with aspirator, other end sealing.The equidistant punching in the both sides of main pipe 2 links to each other with side pipe 3, and its length is 100cm, makes the suction force of each side pipe 3 identical as far as possible; This side pipe 3 is that diameter is the polyester tube of 2cm, and the one end links to each other with main pipe 2, and the other end links to each other with porcelain filter 1, and the length of side pipe 3 is 20cm; Whole sampling pipe is embedded in the soil, can accurately get the soil liquid of the different soil degree of depth like this.One end of aspirator 4 links to each other with sampling pipe, and the other end links to each other with water inlet pipe 5.Water inlet pipe 5 is what to separate with rotatable central rotating shaft 6, and not with rotating shaft 6 rotations, and rising pipe 7 can rotate automatically with rotating shaft 6, and rising pipe 7 water delivering orifices below is the sampling cup 12 of rounded arrangement, places sampling cup 8 in the sampling cup 12.Rising pipe 7 water outlet location positioning are directly over sampling cup 8, and it is every through once rotating the top, the center of circle that is parked in next sampling cup 8 just.
With fixing corner and time interval rotation, adopt stepper motor 10 to link to each other in order to realize described rotating shaft 6 with central rotating shaft 6.Stepper motor 10 is a kind ofly digital input pulse can be converted to the rotation or the electromagnetic actuator of straight line incremental motion, has that inertia is low, bearing accuracy is high, no cumulative errors, controls characteristics such as simple.When stepper motor driver 13 receives a pulse signal, it rotates a fixing angle (and stepping angle) with regard to drive stepping motor 10 by the direction of setting.Can come the pilot angle displacement by the gating pulse number, thereby reach the purpose of accurate location; Can come the speed and the acceleration of 10 rotations of control step motor by the gating pulse frequency, thereby reach the purpose of speed governing.Stepper motor 10 is installed in the same horizontal level in instrument pulpit and rotating shaft 6 centers, links to each other by synchronous pulley 9 with the rotating shaft 6 of sampler chamber.Drive by stepper motor 10, realize the rotation of rotating shaft 6.
Wherein, this vacuum pump is the twin-stage rotary-vane vaccum pump;
Wherein, this water inlet pipe is that diameter is the flexible pipe of 20mm PVC material;
Wherein, this rising pipe is that diameter is the flexible pipe of 20mm PVC material;
Wherein, the capacity of this sampling cup is 250ml, and height is 11cm;
Wherein, the model of this accumulator is the 46B24L type;
Wherein, the model of this stepper motor is 42BYG;
Wherein, the material of this rotating shaft is that stainless steel, diameter are 20mm;
Wherein, this sampling cup is the PVC material.
Claims (10)
1. soil solution of different soil layer depth automatic sampler, it is characterized in that: it is made up of sampling pipe, aspirator, sampler chamber and instrument pulpit; Main pipe on the sampling pipe is connected with the aspirator bottom, and aspirator links to each other with sampler chamber by the water inlet pipe that is installed on it, and the stepper motor of instrument pulpit is connected with the rotating shaft of sampler chamber by synchronous pulley, thereby realizes the rotation of rotating shaft;
Described sampling pipe is made up of main pipe and side pipe, and side pipe is arranged on main pipe both sides and vertical equidistantly layout, and the two ends of side pipe has circular porcelain filter; This main pipe is L shaped bend pipe, and an end links to each other with aspirator, other end sealing; The equidistant punching in the both sides of main pipe links to each other with side pipe, and its pitch of holes is selected according to the sampling needs; This side pipe one end links to each other with main pipe, and the other end links to each other with porcelain filter; This porcelain filter is the micropore right cylinder of being made by stupalith, and its effect is the grains of sand material that filters in the soil liquid; Whole sampling pipe is embedded in the soil, and the other end of outlet links to each other with aspirator;
Described aspirator is a vacuum pump, and the one end links to each other with sampling pipe, and the other end links to each other with sampler chamber;
Described sampler chamber is made up of water inlet pipe, rising pipe, rotating shaft, sampling seat and sampling cup, rotating shaft is positioned at the center of sampler chamber by a pair of roller bearings that is fixed on sampler chamber bottom and sampling cup center, the bottom of rotating shaft links to each other by synchronous pulley with stepper motor in the instrument pulpit, is driven the rotation that realizes rotating shaft by stepper motor; This water inlet pipe is fixed in the rotating shaft, and with rotating shaft rotation, an end does not link to each other with aspirator, the other end be positioned at rotating shaft directly over; This rising pipe with rotating shaft rotation synchronously and water delivering orifice over against above the center of sampling cup; This sampling cup is rounded to be arranged on the sampling cup; The center that this rotating shaft is positioned at sampler chamber is by a pair of roller bearings that is fixed on sampler chamber bottom and sampling face plate center, and the bottom of rotating shaft links to each other by synchronous pulley with stepper motor in the instrument pulpit, is driven the rotation of realization rotating shaft by stepper motor; This sampling cup is a toroidal;
Described instrument pulpit is made up of stepper motor, controllor for step-by-step motor and accumulator; The quantity and the frequency of the pulse signal that the adjustment controllor for step-by-step motor sends, angle and rotational frequency that the control step motor rotates, thereby the angle θ that control rotating shaft is rotated when Fixed Time Interval T, be every rotation, make the water delivering orifice of water inlet pipe be in the center of sampling cup through the fixed interval time T; This stepper motor be two phase mixing 20mm stepper motor, controllor for step-by-step motor is a formula able to programme, can write with different experiments scheme corresponding control programs and control sampling, this accumulator is a forward maintenance-free lead accumulator battery, this just makes soil liquid sampling realize robotization, to satisfy different users's experiment demand.
2. a kind of soil solution of different soil layer depth automatic sampler according to claim 1, it is characterized in that: this main pipe, side pipe are polyester tube, the diameter of main pipe is 3-5 a times of side pipe.
3. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: this vacuum pump is the twin-stage rotary-vane vaccum pump.
4. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: this water inlet pipe is that diameter is the flexible pipe of the PVC material of 18-22mm.
5. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: this rising pipe is that diameter is the flexible pipe of the PVC material of 18-22mm.
6. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: the capacity of this sampling cup is 250ml, and height is 10-12cm.
7. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: the model of this accumulator is the 46B24L type.
8. a kind of soil solution of different soil layer depth automatic sampler according to claim 1, it is characterized in that: the model of this stepper motor is 42BYG.
9. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: the material of this rotating shaft is that stainless steel and diameter are 18-22mm.
10. a kind of soil solution of different soil layer depth automatic sampler according to claim 1 is characterized in that: this sampling cup is the PVC material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105865476A CN102128734B (en) | 2010-12-14 | 2010-12-14 | Automatic sampler for soil solution on different soil depths |
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| CN2010105865476A CN102128734B (en) | 2010-12-14 | 2010-12-14 | Automatic sampler for soil solution on different soil depths |
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| CN102128734A true CN102128734A (en) | 2011-07-20 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102788717A (en) * | 2012-02-23 | 2012-11-21 | 北京师范大学 | Multifunctional in situ soil and soil solution collector |
| CN102998148A (en) * | 2012-12-31 | 2013-03-27 | 北京师范大学 | Soil water automatic sampling and monitoring method |
| CN104502151A (en) * | 2014-12-31 | 2015-04-08 | 中国市政工程华北设计研究总院有限公司 | Quantitative clear liquid suction device for portable automatic liquid sampler |
| CN106092642A (en) * | 2016-06-03 | 2016-11-09 | 山西大学 | Soil cutting ring hierarchical synchronization sampling apparatus |
| CN106769217A (en) * | 2017-01-20 | 2017-05-31 | 贵州师范大学 | A kind of Karst Mountain Areas soil liquid exempts from filter samples and ion activity save set |
| CN106918536A (en) * | 2017-02-24 | 2017-07-04 | 同济大学 | The measure device and method of the vertical effective diffusion cofficient of solute in a kind of saturation soil layer |
| CN109000992A (en) * | 2018-07-10 | 2018-12-14 | 邵晓林 | A kind of water quality automatic sampling instrument |
| CN110823643A (en) * | 2019-11-18 | 2020-02-21 | 张小娟 | Time-sharing sampling system for dynamic water quality detection and sampling method thereof |
| CN111713465A (en) * | 2020-07-10 | 2020-09-29 | 张俊中 | Aquatic product quality detection and capture device and implementation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788717A (en) * | 2012-02-23 | 2012-11-21 | 北京师范大学 | Multifunctional in situ soil and soil solution collector |
| CN102788717B (en) * | 2012-02-23 | 2015-04-08 | 北京师范大学 | Multifunctional in situ soil and soil solution collector |
| CN102998148A (en) * | 2012-12-31 | 2013-03-27 | 北京师范大学 | Soil water automatic sampling and monitoring method |
| CN102998148B (en) * | 2012-12-31 | 2014-12-31 | 北京师范大学 | Soil water automatic sampling and monitoring method |
| CN104502151B (en) * | 2014-12-31 | 2017-01-04 | 中国市政工程华北设计研究总院有限公司 | The quantitative aspirator of clear liquid of portable automatic liquid sampler |
| CN104502151A (en) * | 2014-12-31 | 2015-04-08 | 中国市政工程华北设计研究总院有限公司 | Quantitative clear liquid suction device for portable automatic liquid sampler |
| CN106092642A (en) * | 2016-06-03 | 2016-11-09 | 山西大学 | Soil cutting ring hierarchical synchronization sampling apparatus |
| CN106092642B (en) * | 2016-06-03 | 2019-05-17 | 山西大学 | Soil cutting ring hierarchical synchronization sampling apparatus |
| CN106769217A (en) * | 2017-01-20 | 2017-05-31 | 贵州师范大学 | A kind of Karst Mountain Areas soil liquid exempts from filter samples and ion activity save set |
| CN106769217B (en) * | 2017-01-20 | 2023-09-08 | 贵州师范大学 | Karst mountain area soil solution exempts from to filter sampling and ion activity save set |
| CN106918536A (en) * | 2017-02-24 | 2017-07-04 | 同济大学 | The measure device and method of the vertical effective diffusion cofficient of solute in a kind of saturation soil layer |
| CN109000992A (en) * | 2018-07-10 | 2018-12-14 | 邵晓林 | A kind of water quality automatic sampling instrument |
| CN109000992B (en) * | 2018-07-10 | 2021-04-02 | 邵晓林 | Automatic water quality sampling instrument |
| CN110823643A (en) * | 2019-11-18 | 2020-02-21 | 张小娟 | Time-sharing sampling system for dynamic water quality detection and sampling method thereof |
| CN111713465A (en) * | 2020-07-10 | 2020-09-29 | 张俊中 | Aquatic product quality detection and capture device and implementation method thereof |
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| CN102128734B (en) | 2012-08-08 |
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