CN111766096B - Sampling device for volatile organic compounds in soil and control method thereof - Google Patents
Sampling device for volatile organic compounds in soil and control method thereof Download PDFInfo
- Publication number
- CN111766096B CN111766096B CN202010592493.8A CN202010592493A CN111766096B CN 111766096 B CN111766096 B CN 111766096B CN 202010592493 A CN202010592493 A CN 202010592493A CN 111766096 B CN111766096 B CN 111766096B
- Authority
- CN
- China
- Prior art keywords
- sampling
- soil
- sampling barrel
- hole
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sampling device for volatile organic compounds in soil and a control method thereof, and belongs to the technical field of soil sampling devices. The method solves the problem that volatile organic compounds are volatilized in the existing soil collection process. The invention relates to a sampling device for volatile organic compounds in soil. Wherein, through the control method of this sampling device, can not only realize the collection of sampling device to soil, also can avoid volatile organic compounds to take place volatile circumstances in the collection in the soil, secondly, interior sampling bucket through outer sampling bucket with supporting mechanism's mating reaction, alright gather soil from the soil, through getting the material subassembly and pushing away the mating reaction of material subassembly, alright gather the soil that is located interior sampling bucket.
Description
Technical Field
The invention belongs to the technical field of soil sampling devices, and relates to a sampling device for volatile organic compounds in soil and a control method thereof.
Background
Soil environment quality is related to economic and social sustainable development and health of people, and soil pollution prevention and control are important contents for promoting ecological civilization construction and maintaining national ecological safety. Volatile organic pollutants in soil pollutants become a great hidden danger of soil environment pollution due to concealment, toxicity, volatility, durability and diversity. Because the content of VOCs in the soil environment is low and volatile, the reduction of the volatilization of VOCs in the soil sampling process is directly related to the reliability and accuracy of the determination result. However, in the currently known soil sampling device, the soil sample is contacted with the outside air for many times in the processes of collecting the columnar sample and transferring the sample to the sample bottle, so that the VOCs in the tested soil is lost.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a sampling device for volatile organic compounds in soil, which has better sealing performance in the soil collecting process.
The purpose of the invention can be realized by the following technical scheme: a sampling device for volatile organic compounds in soil, comprising:
a support mechanism;
the outer sampling barrel is detachably connected to the supporting mechanism, and the supporting mechanism drives the outer sampling barrel to lift;
the inner sampling barrel is arranged in the outer sampling barrel;
the material taking assembly is detachably connected between the outer sampling barrel and the inner sampling barrel; a material pushing assembly penetrates between the outer sampling barrel and the inner sampling barrel;
when the inner sampling barrel collects soil and the outer sampling barrel is detached from the supporting mechanism, the pushing assembly pushes the soil in the inner sampling barrel into the material taking assembly.
In the above-mentioned a sampling device for volatile organic compounds in soil, get the material subassembly and include sampler and sampling bottle, the one end of sampling bottle is inserted and is located in the sampler, the sampling bottle is interior to dismantle and be connected with the chock plug.
In the sampling device for volatile organic compounds in soil, the sampling bottle is connected with the sampler through threads, and the outer surface of the sampler is provided with threads.
In the sampling device for the volatile organic compounds in the soil, the outer sampling barrel is provided with a right outer hole for penetrating the sampler and a left outer hole for penetrating the material pushing assembly, and the central axis of the left outer hole is superposed with the central axis of the right outer hole; the inner sampling barrel is provided with a left inner hole used for penetrating a right inner hole of the sampler and a left inner hole used for penetrating the pushing assembly, and the central axis of the left inner hole coincides with the central axis of the right inner hole.
In foretell a sampling device for volatile organic compounds in soil, push away the material subassembly including pushing away the appearance pole, push away and have the screw thread on the appearance pole, push away and install the location lid on the appearance pole, the location lid can push away the movement of appearance pole relatively, the one end of pushing away the appearance pole is equipped with pushes away the appearance head, the other end that pushes away the appearance pole is equipped with the bull stick.
In the above sampling device for volatile organic compounds in soil, the inner wall of the left outer hole, the inner wall of the right outer hole and the side surface of the positioning cover are all provided with threads.
In the sampling device for the volatile organic compounds in the soil, the supporting mechanism comprises a supporting plate and a screw rod penetrating through the supporting plate, and one end of the screw rod is provided with a connecting plate used for connecting an outer sampling barrel.
In the sampling device for the volatile organic compounds in the soil, the outer side surface of one end of the outer sampling barrel is provided with threads, and the screw rod is provided with the holding handle; and a plurality of support rods are arranged on the bottom surface of the support plate.
A method of controlling a sampling device for volatile organic compounds in soil, comprising:
s1, taking out the plug of the sampling bottle, clamping the inner sampling barrel in the outer sampling barrel, and enabling the left inner hole and the left outer hole to be staggered;
s2, connecting the end of the outer sampling barrel with the thread with a connecting disc of a supporting mechanism;
s3, placing the supporting mechanism on the soil, and rotating the supporting handle until the inner sampling barrel is completely inserted into the soil, so that the inner sampling barrel collects the soil;
s4, taking the outer sampling barrel off the connecting disc, and rotating the inner sampling barrel to enable the central axis of the left inner hole to coincide with the central axis of the left outer hole;
s5, sequentially penetrating the material taking assembly through the right outer hole and the right inner hole to enable soil in the inner sampling barrel to be pressed into the material taking device, simultaneously sequentially penetrating the plug through the left outer hole and the left inner hole to enable the central axis of the plug to be coincident with the central axis of the material taking assembly;
s6, connecting the positioning cover of the pushing assembly with the left outer hole and the left inner hole respectively through threads, and then rotating the rotating rod to enable the sample pushing head to push the plug head to sequentially pass through the inner sampling barrel and the sampler until the plug head blocks the sampling bottle, so that soil in the sampler is squeezed into the sampling bottle by the plug head;
s7, taking down the sampling bottle from the sampler, and taking down the sampler and the material pushing component from the outer sampling barrel;
and S8, taking the inner sampling barrel out of the outer sampling barrel, and then pushing out the soil in the inner sampling barrel.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the soil collection device, the inner sampling barrel can collect soil from the soil through the matching effect of the outer sampling barrel and the supporting mechanism, and the soil in the inner sampling barrel can be collected through the matching effect of the material taking assembly and the material pushing assembly.
2. By the control method of the sampling device, not only can the sampling device collect the soil be realized, but also the situation that volatile organic compounds in the soil volatilize during collection can be avoided.
3. Be equipped with two at least sealing washers between interior sampling bucket and the outer sampling bucket, two sealing washers are located the both ends of interior sampling bucket respectively, through the setting of these two sealing washers, avoid the volatile organic compounds in soil from the clearance leakage between interior sampling bucket and the outer sampling bucket.
4. The inner sampling barrel is internally provided with a push disc, the push disc is provided with a push rod, the push rod penetrates through the inner sampling barrel, after soil is collected by the material taking assembly, people can push the push rod, and the push disc is fixedly connected with the push rod, so that residual soil in the inner sampling barrel can be completely discharged from the inner sampling barrel by the push disc, and people can wash the inner sampling barrel conveniently.
5. The outer positioning hole and the inner positioning hole are connected through the pin shaft or the clamping block is clamped into the clamping hole, so that the inner sampling barrel cannot rotate relative to the outer sampling barrel, and the tightness of volatile organic compounds in soil in the inner sampling barrel is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram in the first embodiment.
Fig. 2 is a schematic structural diagram in the second embodiment.
FIG. 3 is a diagram showing the operation of soil collection in the second embodiment.
Fig. 4 is a schematic structural diagram of an external sampling barrel in the first and second embodiments.
Fig. 5 is a schematic structural diagram of an inner sampling barrel according to the first and second embodiments.
Fig. 6 is a schematic structural diagram of an outer sampling barrel in the third embodiment.
Fig. 7 is a schematic structural diagram of an inner sampling barrel in the third embodiment.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1, 4 and 5, the present embodiment is a process of collecting soil from the inner sampling barrel 200 by the material taking assembly 300.
The invention relates to a sampling device for volatile organic compounds in soil, which comprises an outer sampling barrel 100, an inner sampling barrel 200, a material taking assembly 300 and a material pushing assembly 400.
The inner sampling barrel 200 is arranged in the outer sampling barrel 100, the material taking assembly 300 penetrates between the outer sampling barrel 100 and the inner sampling barrel 200, and the material taking assembly 300 can move relative to the outer sampling barrel 100 and the inner sampling barrel 200; a pushing assembly 400 for pushing soil in the inner sampling barrel 200 into the material taking assembly 300 is arranged between the outer sampling barrel 100 and the inner sampling barrel 200 in a penetrating manner, a stopper 330 is detachably connected in the sampling bottle 320, before soil is collected, people need to take the stopper 330 out of the inner sampling barrel 200, after the inner sampling barrel 200 is filled with soil, people need to rotate the inner sampling barrel 200 and the outer sampling barrel 100 relatively for a certain angle, then the material taking assembly 300 sequentially passes through the outer sampling barrel 100 and the inner sampling barrel 200, so that the soil in the inner sampling barrel 200 is taken into the material taking assembly 300 by the material taking assembly 300, then the pushing assembly 400 pushes the stopper 330 into the material taking assembly 300, so that the soil squeezed into the material taking assembly 300 can be pushed to a position preset by the stopper 330 to the material taking assembly 300 again, meanwhile, the stopper 330 blocks the material taking assembly 300, and then, people will get material subassembly 300 and take off, alright accomplish the collection of soil, further guarantee the collection in-process, volatile organic compounds gas tightness in the soil for volatile organic compounds is difficult for leaking in the soil, thereby improves the follow-up accuracy of people to volatile organic compounds detection.
Furthermore, the inside of the plug 330 is hollow, and the thickness of the side surface of the plug 330 is thicker than the thickness of the two end surfaces, so that people can conveniently puncture an injector (not marked in the figure) into the sampling bottle when performing a detection test.
The material taking assembly 300 comprises a sampler 310 and a sampling bottle 320, one end of the sampling bottle 320 is inserted into the sampler 310, the sampling bottle 320 is connected with the sampler 310 through threads, the outer surface of the sampler 310 is provided with threads, the outer sampling barrel 100 is provided with a right outer hole 120 for penetrating the sampler 310 and a left outer hole 110 for penetrating the material pushing assembly 400, and the central axis of the left outer hole 110 is coincident with the central axis of the right outer hole 120; the inner sampling barrel 200 is provided with a right inner hole 220 for penetrating the sampler 310 and a left inner hole 210 for penetrating the pushing assembly 400, and the central axis of the left inner hole 210 coincides with the central axis of the right inner hole 220.
Before collecting soil, one needs to take the plug 330 out of the sampling bottle 320 and the sampler 310, connect one end of the sampling bottle 320 with the inner thread of the sampler 310, then rotate the inner sampling barrel 200 and the outer sampling barrel 100 relatively, so that the left outer hole 110 coincides with the left inner hole 210 and the right outer hole 120 coincides with the right inner hole 220, when collecting soil, one needs to thread the sampler through the right outer hole 120 and the right inner hole 220 and insert the sampler into the inner sampling barrel 200, so that the sampler can smoothly collect soil in the inner sampling barrel 200, at the same time, the plug 330 passes through the left outer hole 110 and the left inner hole 210, then the plug 330 sequentially passes through the left outer hole 110, the left inner hole 210 and the sampler 310 through the pushing assembly 400 until the plug 330 blocks the sampling bottle 320, that is, soil in the sampler 310 smoothly enters the sampling bottle 320 under the pushing of the plug 330, and this sampling bottle 320 is sealed, so, avoid soil in the in-process of gathering, volatile organic compounds takes place the condition of volatilizing in the soil.
The material pushing assembly 400 comprises a sample pushing rod 410, the sample pushing rod 410 is provided with threads, the sample pushing rod 410 is provided with a positioning cover 420, the positioning cover 420 can move relative to the sample pushing rod 410, one end of the sample pushing rod 410 is provided with a sample pushing head 430, the other end of the sample pushing rod 410 is provided with a rotating rod 440, in the process of pushing the plug 330 by the material pushing assembly 400, when the sampler 310 passes through the inner sampling barrel 200 and contacts the left inner hole 210, people need to pass the plug 330 through the left outer hole 110 and the left inner hole 210, after the sampler 310 contacts the left inner hole 210, people need to connect the positioning cover 420 with the left outer hole 110 and the left inner hole 210 respectively in a threaded manner and insert the sample pushing head 430 into the sampler 310, and then people only need to rotate the rotating rod 440, because the positioning cover 420 is clamped between the left outer hole 110 and the left inner hole 210 through the threads at the moment, and the sample pushing rod 410 is in threaded connection with the positioning cover 420, so that the sample pushing rod 410 rotates, push away the inside motion of appearance pole 410 drive and push away appearance head 430 to sampler 310, so, alright push stopper 330 to sampling bottle 320 direction, that is, just, can transfer the soil that is located in sampler 310 to sampling bottle 320 smoothly, because of the internal diameter of sampling bottle 320 is less than the internal diameter of sampler 310, when making stopper 330 move to the bottleneck department of sampling bottle 320, stopper 330 just can plug up the bottleneck of sampling bottle 320, afterwards, as people only need rotate sampling bottle 320 relative sampler, alright take off sampling bottle 320 from sampler 310 smoothly, so, alright realize the collection of this sampling subassembly to soil, and guarantee soil in by the leakproofness of collection in-process, and then guarantee people's later stage to the accuracy that volatile organic compounds detected in the soil.
The inner wall of the right outer hole 120 is provided with threads, so that the sampler 310 can penetrate through the outer sampling barrel 100 and the inner sampling barrel 200 through the threads, and volatile organic compounds in soil are prevented from leaking from a gap between the sampler 310 and the outer sampling barrel 100 or a gap between the sampler 310 and the inner sampling barrel 200 in the process of collecting soil by the sampler 310.
The inner wall of the left outer hole 110 and the side surface of the positioning cover 420 are both provided with threads, when people screw the positioning cover 420 into the left outer hole 110 and the left inner hole 210, people rotate the rotating rod 440, and the positioning cover 420 is in interference fit with the left outer hole 110 due to the threaded connection of the rotating rod 440 and the positioning cover 420, so that the rotating rod 440 can rotate relative to the positioning cover 420, that is, the rotating rod 440 drives the sample pushing head 430 to move towards the inside of the sampler 310; secondly, during the process of collecting soil, the sampler 310 prevents the volatile organic compounds in the soil from leaking from the gap between the positioning cover 420 and the outer sampling barrel 100 or the gap between the positioning cover 420 and the inner sampling barrel 200.
Be equipped with two at least sealing rings 230 between interior sampling bucket 200 and the outer sampling bucket 100, two sealing rings 230 are located the both ends of interior sampling bucket 200 respectively, through the setting of these two sealing rings 230, avoid the volatile organic compounds in the soil from the clearance leakage between interior sampling bucket 200 and the outer sampling bucket 100.
The push disc 240 is arranged in the inner sampling barrel 200, the push rod 241 is arranged on the push disc 240, the push rod 241 penetrates through the inner sampling barrel 200, after the material taking assembly 300 collects soil, people can push the push rod 241, the push disc 240 is fixedly connected with the push rod 241, and therefore the residual soil located in the inner sampling barrel 200 can be completely discharged from the inner sampling barrel 200 through the push disc 240, and therefore people can conveniently clean the inner sampling barrel.
Example two
As shown in fig. 2, 4 and 5, this embodiment is a process of collecting soil from the ground by the inner sampling barrel 200 through the combined structure of the outer sampling barrel 100 and the support mechanism 500.
Specifically, a sampling device for volatile organic compounds in soil includes: supporting mechanism 500, outer sampling bucket 100 can be dismantled and connect in supporting mechanism 500, supporting mechanism 500 drives outer sampling bucket 100 and goes up and down, outer sampling bucket 100 is located to interior sampling bucket 200 card, the in-process of gathering soil from the soil, people need advance interior sampling bucket 200 card in outer sampling bucket 100, and misplace left hole 210 and left outer hole 110, later, install outer sampling bucket 100 in supporting mechanism 500's below, then, place supporting mechanism 500 directly over the soil that needs to gather, after supporting mechanism 500 drives outer sampling bucket 100 and descends and inserts soil certain degree of depth, the soil that is located directly below interior sampling bucket 200 is extruded into interior sampling bucket 200, later, supporting mechanism 500 drives outer sampling bucket 100 and rises, so, people alright gather soil from the soil smoothly.
The supporting mechanism 500 comprises a supporting plate 510 and a screw rod 520 penetrating through the supporting plate 510, one end of the screw rod 520 is provided with a connecting plate 521 used for connecting with the outer sampling barrel 100, the outer side surface of one end of the outer sampling barrel 100 is provided with threads, and the screw rod 520 is provided with a support handle 530; the bottom surface of the supporting plate 510 is provided with a plurality of supporting rods 540, during the process of collecting soil, people need to fix the inner sampling barrel 200 in the outer sampling barrel 100, then connect the end connecting plate 521 with the thread of the outer sampling barrel 100 in a threaded manner, and then rotate the holding handle 530, because the holding handle 530 is fixedly connected with the screw rod 520, the screw rod 520 is in threaded connection with the supporting plate 510, so that the screw rod 520 drives the connecting plate 521 to rotate and descend with the outer sampling barrel 100, thus realizing the rotary cutting of the soil under the outer sampling barrel 100, at the same time, the push disc 240 retracts into the inner sampling barrel 200, thereby enabling the inner sampling barrel 200 to smoothly collect soil, when the inner sampling barrel 200 is completely submerged into the ground, people rotate the holding handle 530 in the reverse direction, so that the screw rod 520 drives the connecting plate 521 to synchronously ascend with the outer sampling barrel 100, thus realizing the collection of the soil by the inner sampling barrel 200, and secondly, the left outer hole 110 and the right outer hole 120 are both located in the middle of the outer sampling barrel 100, the soil collected by the sampling assembly is always in a sealed state.
The outer sampling barrel 100 is provided with an outer positioning hole 130, the inner sampling barrel 200 is provided with an inner positioning hole 250 corresponding to the outer positioning hole 130, the outer positioning hole 130 is connected with the inner positioning hole 250 through the pin shaft 131, and in the process of collecting soil from the soil, people need to clamp the inner sampling barrel 200 into the outer sampling barrel 100 firstly, the inner sampling barrel 200 and the outer sampling barrel 100 are relatively rotated, the left inner hole 210 and the left outer hole 110 are staggered until the inner positioning hole 250 is overlapped with the outer positioning hole 130, then the pin shaft 131 is inserted between the inner positioning hole 250 and the outer positioning hole 130, so that the pin shaft 131 restricts the rotation of the inner sampling barrel 200 relative to the outer sampling barrel 100, thus ensuring the tightness of volatile organic compounds in the soil in the inner sampling barrel 200, when the material taking assembly 300 is to sample soil in the inner sampling barrel 200, people only need to pull out the pin shaft 131 to rotate the inner sampling barrel 200 so as to realize the coincidence of the left outer hole 110 and the left inner hole 210.
EXAMPLE III
As shown in fig. 6 and 7, the present embodiment is different from the second embodiment in that the present embodiment changes the fastening manner between the inner sampling barrel 200 and the outer sampling barrel 100.
Specifically, the inner sampling barrel 200 is provided with the fixture block 260, the fixture block 260 is hinged to the inner sampling barrel 200, the outer sampling barrel 100 is provided with the clamping hole 140 corresponding to the fixture block 260, after the inner sampling barrel 200 is inserted into the outer sampling barrel 100 to a predetermined position, the fixture block 260 is clamped into the clamping hole 140, so that the fixture block 260 limits the relative rotation of the inner sampling barrel 200 and the outer sampling barrel 100, when the material taking assembly 300 needs to sample soil in the inner sampling barrel 200, people only need to pull out the fixture block 260 from the clamping hole 140, and the inner sampling barrel 200 can be rotated, and therefore the coincidence of the left outer hole 110 and the left inner hole 210 is achieved.
Example four
The embodiment is a control method of a sampling device for volatile organic compounds in soil, comprising the following steps:
s1, taking out the plug 330 of the sampling bottle 320, clamping the inner sampling barrel 200 in the outer sampling barrel 100, and dislocating the left inner hole 210 with the left outer hole 110 and the right outer hole 120 with the right inner hole 220 to ensure the tightness of volatile organic compounds in the soil in the inner sampling barrel 200;
s2, connecting the end of the outer sampling barrel 100 with the screw thread on the outer side surface with the connecting disc 521 of the supporting mechanism 500;
s3, unfolding and placing the three support rods 540 on soil, rotating the holding handle 530, wherein the holding handle 530 is fixedly connected with the screw rod 520, and the screw rod 520 is in threaded connection with the support plate 510, so that the screw rod 520 drives the connection disc 521 and the outer sampling barrel 100 to rotate and descend, and thus, the outer sampling barrel 100 can rotatably cut the soil right below the outer sampling barrel, and meanwhile, the push disc 240 retracts into the inner sampling barrel 200, so that the inner sampling barrel 200 can smoothly collect the soil;
s4, the outer sampling barrel 100 is taken down from the connection disc 521, the plug pin is pulled out, or the clamping block 260 is pulled out from the clamping hole 140, and the inner sampling barrel 200 is rotated, so that the central axis of the left inner hole 210 coincides with the central axis of the left outer hole 110, and the central axis of the right inner hole 220 coincides with the central axis of the right outer hole 120;
s5, placing a stirrer in the sampling bottle, then threading the extractor through the right outer hole 120 and the right inner hole 220, inserting the extractor into the inner sampling barrel 200, so that the extractor can smoothly collect soil in the inner sampling barrel 200, and meanwhile, threading the plug 330 through the left outer hole 110 and the left inner hole 210, and making the central axis of the plug 330 coincide with the central axis of the extracting component 300;
s6, when the sampler contacts the left inner hole 210, after pushing the plug 330 into the sampler 310, one needs to connect the positioning cap 420 with the left outer hole 110 and the left inner hole 210 by screw threads, respectively, and insert the sample pushing head 430 into the sampler 310, and then, one only needs to rotate the rotating rod 440, so that the positioning cap 420 is clamped between the left outer hole 110 and the left inner hole 210 by screw threads, and the sample pushing rod 410 is connected with the positioning cap 420 by screw threads, so that when the sample pushing rod 410 rotates, the sample pushing rod 410 drives the sample pushing head 430 to move towards the inside of the sampler 310, so that the plug 330 can be pushed towards the sampling bottle 320, that is, the soil in the sampler 310 can be smoothly transferred into the sampling bottle 320, and when the plug 330 moves to the bottleneck of the sampling bottle 320, the plug 330 can block the bottleneck of the sampling bottle 320;
s7, removing the sampling bottle 320 from the sampler 310, removing the sampler 310 and the positioning cap 420 from the outer sampling barrel 100, and then injecting 5ml of 20% sodium bisulfate matrix protective solution into the sampling bottle through the stopper by a syringe (not shown);
s8, the inner sampling barrel 200 is taken out from the outer sampling barrel 100, and then the soil in the inner sampling barrel 200 is pushed out by the push plate 240.
By the control method, the sampling device can collect the soil, and the condition that volatile organic compounds in the soil volatilize during collection can be avoided.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. A sampling device for volatile organic compounds in soil, comprising:
a support mechanism;
the outer sampling barrel is detachably connected to the supporting mechanism, and the supporting mechanism drives the outer sampling barrel to lift;
the inner sampling barrel is arranged in the outer sampling barrel;
the material taking assembly is detachably connected between the outer sampling barrel and the inner sampling barrel; a material pushing assembly penetrates between the outer sampling barrel and the inner sampling barrel;
after the inner sampling barrel collects soil and the outer sampling barrel is detached from the supporting mechanism, the pushing assembly pushes the soil in the inner sampling barrel into the material taking assembly;
the material taking assembly comprises a sampler and a sampling bottle, one end of the sampling bottle is inserted into the sampler, and a plug head is detachably connected in the sampling bottle;
the outer sampling barrel is provided with a right outer hole for penetrating a sampler and a left outer hole for penetrating a material pushing assembly, and the central axis of the left outer hole is superposed with the central axis of the right outer hole; the inner sampling barrel is provided with a left inner hole for penetrating a right inner hole of the sampler and penetrating the pushing assembly, and the central axis of the left inner hole coincides with the central axis of the right inner hole.
2. The sampling device for volatile organic compounds in soil according to claim 1, wherein the sampling bottle is connected with the sampler through screw threads, and the outer surface of the sampler is provided with screw threads.
3. The sampling device for the volatile organic compounds in soil according to claim 1, wherein the pushing assembly comprises a sample pushing rod, the sample pushing rod is provided with threads, a positioning cover is mounted on the sample pushing rod and can move relative to the sample pushing rod, a sample pushing head is arranged at one end of the sample pushing rod, and a rotating rod is arranged at the other end of the sample pushing rod.
4. The sampling device for the volatile organic compounds in the soil according to claim 3, wherein the inner wall of the left outer hole, the inner wall of the right outer hole and the side surface of the positioning cover are provided with threads.
5. The sampling device for the volatile organic compounds in the soil according to claim 1, wherein the supporting mechanism comprises a supporting plate and a screw rod penetrating through the supporting plate, and one end of the screw rod is provided with a connecting plate for connecting with an outer sampling barrel.
6. The sampling device for the volatile organic compounds in the soil according to claim 5, wherein a screw thread is arranged on the outer side surface of one end of the outer sampling barrel, and a support handle is arranged on the screw rod; and a plurality of support rods are arranged on the bottom surface of the support plate.
7. A control method for a sampling device for volatile organic compounds in soil, characterized in that the control method is implemented by the sampling device for volatile organic compounds in soil according to any one of claims 1 to 6, and the control method further comprises the following steps:
s1, taking out the plug of the sampling bottle, clamping the inner sampling barrel in the outer sampling barrel, and enabling the left inner hole and the left outer hole to be staggered;
s2, connecting the end of the outer sampling barrel with the thread with a connecting disc of a supporting mechanism;
s3, placing the supporting mechanism on the soil, and rotating the supporting handle until the inner sampling barrel is completely inserted into the soil, so as to finish the soil collection of the inner sampling barrel;
s4, taking the outer sampling barrel off the connecting disc, and rotating the inner sampling barrel to enable the central axis of the left inner hole to coincide with the central axis of the left outer hole;
s5, sequentially penetrating the material taking assembly through the right outer hole and the right inner hole to enable soil in the inner sampling barrel to be pressed into the material taking device, simultaneously sequentially penetrating the plug through the left outer hole and the left inner hole to enable the central axis of the plug to be coincident with the central axis of the material taking assembly;
s6, connecting the positioning cover of the pushing assembly with the left outer hole and the left inner hole respectively through threads, and then rotating the rotating rod to enable the sample pushing head to push the plug head to sequentially pass through the inner sampling barrel and the sampler until the plug head blocks the sampling bottle, so that soil in the sampler is squeezed into the sampling bottle by the plug head;
s7, taking down the sampling bottle from the sampler, and taking down the sampler and the material pushing component from the outer sampling barrel;
and S8, taking the inner sampling barrel out of the outer sampling barrel, and then pushing out the soil in the inner sampling barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592493.8A CN111766096B (en) | 2020-06-24 | 2020-06-24 | Sampling device for volatile organic compounds in soil and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592493.8A CN111766096B (en) | 2020-06-24 | 2020-06-24 | Sampling device for volatile organic compounds in soil and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111766096A CN111766096A (en) | 2020-10-13 |
| CN111766096B true CN111766096B (en) | 2022-09-23 |
Family
ID=72721784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010592493.8A Active CN111766096B (en) | 2020-06-24 | 2020-06-24 | Sampling device for volatile organic compounds in soil and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111766096B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567888A (en) * | 1993-12-24 | 1996-10-22 | Boydle; Timothy | Sampling device |
| KR101451385B1 (en) * | 2014-04-18 | 2014-10-22 | 한국과학기술연구원 | Method of monitoring purification state and investigating in-situ state of pollution for soil and groundwater |
| CN204286848U (en) * | 2014-11-20 | 2015-04-22 | 昆明理工大学 | A kind ofly can obtain original state drawing out soil equipment that is vertical and horizontal direction simultaneously |
| CN206804328U (en) * | 2017-05-27 | 2017-12-26 | 山东省环科院环境工程有限公司 | A kind of original position soil elution sampling apparatus |
| JP2018162640A (en) * | 2017-03-27 | 2018-10-18 | 積水化学工業株式会社 | Original position testing device, method for measuring groundwater level, and method for collecting soil sample |
| CN110763507A (en) * | 2019-10-31 | 2020-02-07 | 生态环境部南京环境科学研究所 | A time delay sampling device for normal position detects soil and restores medicament efficiency |
| CN111207954A (en) * | 2020-03-18 | 2020-05-29 | 北华航天工业学院 | Combined type in-situ soil liquid phase and gas phase substance collector |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002039810A2 (en) * | 2000-11-15 | 2002-05-23 | Roy Caisley | System for tagging a biological object and for taking a sample of the biological object |
| JP2003021581A (en) * | 2001-07-06 | 2003-01-24 | West Japan Environmental Technical Center Inc | Sampling device for volatile gas in soil and sampling method using the same |
| CN103411799B (en) * | 2013-08-26 | 2015-07-01 | 中国科学院地球化学研究所 | Built-in in-situ sampling device for high-temperature and high-pressure reaction kettle |
| CN203881566U (en) * | 2014-04-28 | 2014-10-15 | 浙江大学 | Sampler for taking undisturbed sample of polluted silt |
| CN206906050U (en) * | 2017-06-21 | 2018-01-19 | 重庆仕益产品质量检测有限责任公司 | A kind of soil surveying sampler |
| CN207215529U (en) * | 2017-09-13 | 2018-04-10 | 农环科技（上海）有限公司 | A kind of soil VOC samplers |
| CN209214963U (en) * | 2018-11-06 | 2019-08-06 | 杜廷芹 | A kind of portable soil sampler |
| CN209589534U (en) * | 2019-01-09 | 2019-11-05 | 郑州汇之丰科技有限公司 | A kind of drilling rod of the soil collecting device convenient for sampling |
| CN210571472U (en) * | 2019-08-01 | 2020-05-19 | 安徽禾美环保集团有限公司 | Soil environment ecological remediation monitoring facilities |
| CN210347193U (en) * | 2019-08-23 | 2020-04-17 | 天津市环境保护科学研究院 | Soil sampling device |
| CN110872553A (en) * | 2019-11-15 | 2020-03-10 | 苏春英 | Be used for stem cell storage protection extraction element |
| CN110887692A (en) * | 2019-12-06 | 2020-03-17 | 陈楠 | Soil sampling device capable of collecting in layered mode |
| CN110849667A (en) * | 2019-12-20 | 2020-02-28 | 陈楠 | Sampling device for soil detection |
| CN111122233A (en) * | 2020-01-07 | 2020-05-08 | 浙江埃泰克环境科技有限公司 | Soil sampler for VOCs analysis |
| CN111141551A (en) * | 2020-03-13 | 2020-05-12 | 中新瑞美(天津)环保科技有限公司 | Non-disturbance sampler device for soil investigation |
-
2020
- 2020-06-24 CN CN202010592493.8A patent/CN111766096B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567888A (en) * | 1993-12-24 | 1996-10-22 | Boydle; Timothy | Sampling device |
| KR101451385B1 (en) * | 2014-04-18 | 2014-10-22 | 한국과학기술연구원 | Method of monitoring purification state and investigating in-situ state of pollution for soil and groundwater |
| CN204286848U (en) * | 2014-11-20 | 2015-04-22 | 昆明理工大学 | A kind ofly can obtain original state drawing out soil equipment that is vertical and horizontal direction simultaneously |
| JP2018162640A (en) * | 2017-03-27 | 2018-10-18 | 積水化学工業株式会社 | Original position testing device, method for measuring groundwater level, and method for collecting soil sample |
| CN206804328U (en) * | 2017-05-27 | 2017-12-26 | 山东省环科院环境工程有限公司 | A kind of original position soil elution sampling apparatus |
| CN110763507A (en) * | 2019-10-31 | 2020-02-07 | 生态环境部南京环境科学研究所 | A time delay sampling device for normal position detects soil and restores medicament efficiency |
| CN111207954A (en) * | 2020-03-18 | 2020-05-29 | 北华航天工业学院 | Combined type in-situ soil liquid phase and gas phase substance collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111766096A (en) | 2020-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69726094T2 (en) | Sample vials and caps for use in gas analysis | |
| CN108801689B (en) | Soil sampling and detecting device and soil sampling and detecting method | |
| CN108776044B (en) | Accurate sampling system and method for soil environment monitoring | |
| CN111473997A (en) | Layered sampling device for soil detection | |
| CN1035893A (en) | Appliance designed for single use for taking samples of liquids | |
| CN105865892A (en) | Anion synthetic detergent extracting and analyzing method and device | |
| CN111766096B (en) | Sampling device for volatile organic compounds in soil and control method thereof | |
| CN212748359U (en) | Sampling device | |
| CN110514768A (en) | The ceramic tube sampler and the method for sampling acquired for polar organic matter in underground water | |
| CN211740790U (en) | Air collection system for environmental detection | |
| CN102879236B (en) | Device and method for breaking tank and extracting gas | |
| CN205786048U (en) | Anion synthetic detergent extractive analysis device | |
| CN216247398U (en) | Analytical chemistry liquid sampling device | |
| KR100923859B1 (en) | Apparatus for automatic preprocessing volatile organic compound | |
| CN208003809U (en) | Chinese medicine Agitation Tank with automatic detection device | |
| CN113125614B (en) | Method for extracting water-soluble organic acid in shale and coal rock containing soluble organic matters | |
| CN214894118U (en) | Cement sampler for engineering supervision | |
| CN210037352U (en) | Portable fire scene combustion improver sampling device | |
| CN100509577C (en) | Container sealing device for extracting solution | |
| CN210205973U (en) | Extraction device is used in sanitizer production | |
| CN209441897U (en) | A kind of Medicines agent bin and sample analyzer | |
| CN210045423U (en) | Liquid taking mechanism for low-speed table type centrifugal machine | |
| CN208887997U (en) | Sampler is used in a kind of inspection | |
| CN221139165U (en) | Soil sample storage device | |
| CN220961247U (en) | Quick detection device of diesel formaldehyde for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |