CN102109422A - Handheld soil pore water sampler - Google Patents
Handheld soil pore water sampler Download PDFInfo
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- CN102109422A CN102109422A CN201010592968XA CN201010592968A CN102109422A CN 102109422 A CN102109422 A CN 102109422A CN 201010592968X A CN201010592968X A CN 201010592968XA CN 201010592968 A CN201010592968 A CN 201010592968A CN 102109422 A CN102109422 A CN 102109422A
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Abstract
The invention provides a handheld soil pore water sampler, which consists of an overground unit and an underground unit. The overground unit consists of a manual vacuum generator and a sampler; and the underground unit consists of a filter. The handheld soil pore water sampler can make the vacuum generator generate vacuum without electricity manually on site, and is particularly suitable for field operation; the vacuum generator, the sampler and the filter are combined, so that one-time sampling can be finished; the next sampling can be performed only by replacing the sampler, and the soil pore water sampler is convenient to operate; and a sample is not contacted with an overground negative pressure generation device in the whole sampling process, so that the risk that the water quality of the sample is polluted is avoided, and detection authenticity is ensured. The soil pore water sampler has a simple structure, small volume and low cost, is easy to manufacture, is labor-saving during operation, and is convenient to popularize.
Description
Technical field
The present invention relates to a kind of hand-held soil aperture water sampler, be applicable to the sampling of marsh wetland soil pore water.
Background technology
The soil aperture water sampler that generally uses is made up of ground negative pressure generation device, filtration underground device and sampling jar, connecting pipe etc. at present.According to the difference of ground negative pressure generation device driver element, the soil aperture water sampler is divided into again that manpower drives and two kinds of driven by power.Though driven by power soil aperture water sampler can produce enough negative pressure, and field condition is had relatively high expectations, and not only needs electric power supply, complex operation; Inconvenience is carried and used to the body heaviness, and when being used for the sampling of marsh wetland, because ponding and mud influence are unfavorable for mechanical load-bearing and electricity usage safety, therefore be not suitable for the field work environment, is difficult to promote the use of; Though and manpower drives soil sampler and has overcome power-actuated on-the-spot restriction, because effort, generally be difficult to the negative pressure that reaches enough, sampling quantity is descended, even be difficult to extract out buried depth and be bigger than water sample in the filter, can not finish sampling.Simultaneously, because there are not enough devices to guarantee that sample is in negative pressure state always, the sample quality also can be affected.(list of references: SKPE25 type soil moisture sampler, Beijing Australia does ecological Instr Ltd., No. 89 HengXing Building 24G chamber, East Road ,Zhongguangcun ,Haidian District ,Beijing City, postcode: 100190.)
Summary of the invention
At the defective of prior art, the invention provides that a kind of volume is less, more laborsaving, the hand-held soil aperture water sampler of the adaptation field work environment that do not need electric power.
Hand-held provided by the invention soil aperture water sampler is made up of unit, ground and underground unit; The unit is made up of manual vacuum generator and sampler on the ground, and underground unit is made up of filtrator;
Described manual vacuum generator is made up of handle, rotating disk, drive link, piston, piston cylinder and air chamber;
Described handle is that an end has externally threaded zigzag metal crank, has an externally threaded end to pass to be connected the back with the internal thread of sleeve pipe behind the sleeve to fixedly connected with circular rotating disk, and Socket welding is connected on the center of the rotating disk of circle; Turning handle can drive circular dial rotation; Back up pad is the upwardly extending semi-circular ring of the cylinder body of piston cylinder, and the top of this semi-circular ring adopts semicircular plate to seal, and sleeve is welded on the semicircular plate at back up pad top, and its effect is the fixed support handle and handle can be rotated in sleeve;
Rotating disk is a disk, and there is the fixed orifice of an internal thread at the place of keeping to the side;
One end of drive link is welded with a drive link set collar, be threaded with fixed orifice after having externally threaded standing screw to pass described drive link set collar, drive link is connected with rotating disk, and dial rotation drive drive link motion and then drive piston are done in the cylinder body of plug cylinder and are pumped; The other end of drive link has external thread;
Last assembly is that bottom surface central authorities are the right cylinder of recessed cylindrical cavity, and described recessed cylindrical cavity has internal thread; Following assembly is a right cylinder, this cylindrical upper face center has the right cylinder of a projection, the right cylinder of described projection closely is connected by screw thread with recessed cylindrical cavity cooperation makes assembly and following assembly become a cylindrical piston, and piston places the cylinder body of piston cylinder;
The right cylinder lower surface of described upward assembly has a piston seal groove with the right cylinder upper surface intersection of following assembly around the piston right cylinder, O-ring seal places in the piston seal groove, when screwing assembly and following assembly, O-ring seal in the piston seal groove can be squeezed and be contacted with the piston cylinder inwall, reach packed-piston and piston cylinder, and because O-ring seal has elasticity, compacted glue O-ring seal can not break away from the piston seal groove in sealing;
There is a rounding platform chamber described center of going up the top of assembly, and the episphere chamber below rounding platform chamber and the last assembly connects;
Also there be the size lower semisphere chamber the same with the hemisphere chamber of last assembly in the described cylindrical central authorities of assembly down, and two hemisphere chambeies constitute a ball cavity;
Ball places in the described ball cavity, is drilled with the hole of internal thread on the ball, and the other end of drive link is fastenedly connected by external thread and ball; When rotating disk drove the drive link motion, ball can rotate in described round empty cavity, owing to there is rounding platform chamber to exist, the motion of drive link can be not limited;
During installation, earlier dwang one end is threaded with ball, the other end passes in episphere chamber and the rounding platform chamber from last assembly then, and ball is placed in the episphere chamber, at last, to go up assembly by screw thread and be connected, and cushion rubber will be put in the piston middle part be connected with following assembly in the semicircular ring groove of forming the back, screw assembly and following assembly by last assembly with following assembly.Then the drive link other end is connected and fixed by drive link set collar and standing screw, fixed orifice and rotating disk, rotating disk rotates by handle and rotates, and drive piston is made vertical direction in piston cylinder to-and-fro movement through drive link, benly be, the center of drive link set collar and the distance of center circle of rotating disk can not rotate because of the inwall collision of drive link and piston cylinder to guarantee rotating disk from the radius that does not exceed piston cylinder.
Described air chamber is a cavity that the tubular at the end is arranged, the circular tube external wall on the top of this cavity has external thread, internal thread is arranged at the bottom of the cylinder body of piston cylinder, both connect by thread seal, and the cylinder body of piston cylinder and air chamber pipe body contact portion all have a semicircular groove, they form the hole of a circle, and this circular hole is built-in with cushion rubber and seals;
Side retaining valve and end retaining valve are arranged respectively at the cavity wall of the tubular of described air chamber and bottom, and the side retaining valve is similar to the valve core structure of bicycle tube, and it is the short tube that end opening other end sealing, sidewall have aperture; Tightly be enclosed within on the side retaining valve with a bit of preferably flexible rubber hose of elasticity the aperture of sidewall is sealed, and the aperture of sealing and an end of sealing are exposed to outside the cavity of air chamber, the cavity wall that the openend of side retaining valve runs through air chamber is communicated with the air intake opening of back as the side retaining valve with air chamber, the aperture of the sidewall of side retaining valve is as the gas outlet of side retaining valve;
The course of work of side retaining valve and air chamber is: if the air pressure of air chamber greater than the air pressure of the gas outlet of side retaining valve, the gas in the air chamber will strut the sebific duct of closed pores, gas promptly flows out from the gas outlet of side retaining valve and directly is discharged to the air; If the air pressure of air chamber is less than the air pressure of the gas outlet of side retaining valve, the sebific duct on the aperture of side retaining valve sidewall is compressed by air pressure, and the gas in the closed side retaining valve, air chamber then can not flow out from the gas outlet of side retaining valve.The effect of side retaining valve be only allow in the air chamber gas by the air intake opening of side retaining valve through the gas outlet unidirectional flowing out in the air;
The structure of end retaining valve is the same with the side retaining valve, and the bottom that sealing one end of end retaining valve and sidewall aperture run through air chamber places the inside of air chamber, as the gas outlet of end retaining valve; End retaining valve does not stretch out air chamber after sealing the bottom sealing of an end and air chamber, as the air intake opening of end retaining valve;
The course of work of end retaining valve and air chamber is: if the air pressure of air chamber less than the air pressure of the gas outlet of end retaining valve, the outer gas of air chamber will strut the sebific duct of closed pores, gas promptly flows into the air chamber from the gas outlet of end retaining valve; If the air pressure of air chamber is greater than the air pressure of bill kept on file to valve air gate, sebific duct on the aperture of end retaining valve sidewall is compressed by air pressure, sealing end retaining valve, gas in the air chamber then can not flow out to valve air gate from bill kept on file, bill kept on file to valve action be only allow in the air chamber gas by the air intake opening of end retaining valve through the gas outlet unidirectional flowing in the air chamber;
Gas outlet one end connects the part that an end stretches out air chamber of not sealing of end retaining valve, and the other end connects the sample introduction valve, forms the one-way passage of being led to the gas of air chamber by sampler;
Side retaining valve and end retaining valve, gas and can not enter sampler by the unidirectional discharge of air chamber when guaranteeing Piston Compression; Gas was by the unidirectional air chamber that enters of sampler when piston was mentioned, and can the suction air, so the sampling bottle that the to-and-fro movement of piston can be sampler provides negative pressure;
Described sampler is made up of sampling bottle, drain tap, sample introduction valve and sealing plug;
Sampling bottle is by the sealing of sealing plug, and an end of sample introduction valve runs through the sealing plug and is tightly connected;
The negative pressure that the manual vacuum generator produces can make sampling bottle also produce negative pressure by end retaining valve, gas outlet and sample introduction valve;
When the negative pressure in the sampling bottle reaches a threshold value, soil pore water can enter sampling bottle through underground unit, sample introduction valve, the soil aperture water yield of collecting to the sampling bottle reaches requirement, close sample introduction valve, drain tap, take off gas outlet and sample introduction pipe, promptly finished the once sampling of a sampling spot.
Sample introduction valve one end runs through the sealing plug and is tightly connected with the sealing plug, and the other end is connected with the sample introduction seal of tube;
The filtrator of described underground unit is made up of support bar, filtering head and joint;
Filtering head is the hollow circular cylinder of being made by porous ceramics, and the central upper sidewall of filtering head is distributed with micropore, and the bottom of filtering head is a water storage room, and its effect is to gather soil pore water;
Joint is a round tube, and an end of joint inserts in the described water storage room, so that draw soil pore water;
Support bar is the pipe of metal or rigid plastic, and the upper end of its lower end and filtering head sticks with glue and connects or weld, and there is lid on its top, and there is a hole its upper end, and the sample introduction pipe places in the support bar by this hole and is tightly connected with the upper end of joint; The sample introduction pipe is connected with the sample introduction valve; The support bar upper side wall indicates scale, and wherein zero size is counted by the filtering head middle part, so that the control support bar inserts the degree of depth of soil;
The support bar outer wall is scraped hair and is handled, and makes smooth outer wall become coarse, so that it can closely contact with soil when inserting soil downwards, and prevents that topsoil water from flowing into predetermined sampled point along tube wall;
Downward masterpiece is used for stay pipe, and support bar will drive the sample introduction pipe, filtering head enters in the soil to be measured of certain depth, thereby reach the purpose that extracts pore water in soil to be measured.
The course of work of the present invention is: (1) assembles manual vacuum generator, sampler, combination of filters; (2) require insert in soil according to sampling depth support bar and sampling head, treat after 3 hours the holard at predetermined sampled point behind diffusion, process stabilization such as flow, carry out sampling operation: the manually-operated vacuum generator of a. left hand, right hand turning handle satisfies test request until volume of water sample; B. subsequently, close sample introduction valve, drain tap, extract gas outlet and sample introduction pipe, take off sampler, the primary sample operation is promptly finished; C. after inserting another sampler, can carry out sampling operation next time.
Beneficial effect: a kind of soil aperture water sampler, can manually make vacuum generator produce vacuum at the scene, do not need electric power, be specially adapted to field work; Make up by vacuum generator, sampler and filtrator, can finish primary sample; Then, only needing to change sampler can take a sample next time, easy to operate; In the whole sampling process, sample does not contact with ground negative pressure generation device, and the risk of having avoided sample water quality to be stained has guaranteed the authenticity that detects.The soil aperture water sampler is simple in structure, makes easily, and little, the rapid operation of volume, with low cost, be convenient to promote.
Description of drawings
Fig. 1 is the front view that the unit, ground of hand-held of the present invention soil aperture water sampler constitutes synoptic diagram.
Fig. 2 is the vertical view that the unit, ground of hand-held of the present invention soil aperture water sampler constitutes synoptic diagram.
Fig. 3 is the side view that the unit, ground of hand-held of the present invention soil aperture water sampler constitutes synoptic diagram.
Fig. 4 is the I-I sectional view of Fig. 1.
Fig. 5 is the II-II sectional view of Fig. 2.
Fig. 6 is an A enlarged drawing among Fig. 1.
Fig. 7 is a B enlarged drawing among Fig. 4.
Fig. 8 is a C enlarged drawing among Fig. 4.
Fig. 9 is the sectional view that the underground unit of hand-held of the present invention soil aperture water sampler constitutes synoptic diagram.
Figure 10 is the formation synoptic diagram of hand-held of the present invention soil aperture water sampler.
Embodiment
Hand-held provided by the invention soil aperture water sampler is made up of unit, ground and underground unit; The unit is made up of manual vacuum generator and sampler on the ground, and underground unit is made up of filtrator;
To shown in Figure 10, described manual vacuum generator is made up of handle 1, rotating disk 2, drive link 3, piston 4, piston cylinder 5 and air chamber 6 as Fig. 1;
As Fig. 1, Fig. 3, shown in Figure 5, described handle 1 is that an end has externally threaded zigzag metal crank, have an externally threaded end to pass and fixedly connected with circular rotating disk 2 after sleeve 33 backs are connected with the internal thread of sleeve pipe 31, sleeve pipe 31 is welded on the center of circular rotating disk 2; Turning handle 1 can drive circular rotating disk 2 and rotate; Back up pad 27 is the upwardly extending semi-circular ring of cylinder body of piston cylinder 5, the top of this semi-circular ring adopts semicircular plate to seal, sleeve 33 is welded on the semicircular plate at back up pad 27 tops, and its effect is fixed support handle 1 and handle 1 can be rotated in sleeve 33;
Rotating disk 2 is disks, and there is the fixed orifice 32 of an internal thread at the place of keeping to the side;
One end of drive link 3 is welded with a drive link set collar 10, having externally threaded standing screw 11 to pass described drive link set collar 10 backs is threaded with fixed orifice 32, drive link 3 is connected with rotating disk 2, and rotating disk 2 rotation drive drive link 3 motions and then drive piston 7 are done in the cylinder body of plug cylinder 5 and are pumped; The other end of drive link 3 has external thread;
As Fig. 4 and shown in Figure 7, last assembly 4 is that bottom surface central authorities are the right cylinder of recessed cylindrical cavity, and described recessed cylindrical cavity has internal thread; Following assembly 8 is right cylinders, this cylindrical upper face center has the right cylinder of a projection, the right cylinder of described projection closely is connected by screw thread with recessed cylindrical cavity cooperation makes assembly 4 and following assembly 8 become a cylindrical piston 7, and piston 7 places the cylinder body of piston cylinder 5;
The right cylinder lower surface of described upward assembly 4 has a piston seal groove with the right cylinder upper surface intersection of following assembly 8 around the piston right cylinder, O-ring seal 9 places in the piston seal groove, when screwing assembly and following assembly, O-ring seal in the piston seal groove can be squeezed and be contacted with the piston cylinder inwall, reach packed-piston and piston cylinder, and because O-ring seal has elasticity, compacted glue O-ring seal can not break away from the piston seal groove in sealing;
There is a rounding platform chamber 28 described center of going up the top of assembly 4, and the episphere chamber 29 of rounding platform chamber 28 below last assembly 4 connects;
Also there is the same ball cavity of lower semisphere chamber 30, two hemisphere chambeies formation in the hemisphere chamber 29 of a size and last assembly 4 in the cylindrical central authorities of described down assembly 8;
During installation, earlier dwang 3 one ends are threaded with ball 12, the other end passes in episphere chamber 29 and the rounding platform chamber 28 from last assembly 4 then, and ball 12 is placed in the episphere chamber 29, at last, to go up assembly 4 by screw thread and be connected, and cushion rubber 9 will be put in piston 7 middle parts be connected with following assembly 8 in the semicircular ring groove of forming the back, screw assembly 4 and following assembly 8 by last assembly 4 with following assembly 8.Then drive link 3 other ends are connected and fixed by drive link set collar 10 and standing screw 11, fixed orifice 32 and rotating disk 2.Rotating disk 2 rotates by handle 1 and rotates, and drives piston 7 is made vertical direction in piston cylinder 5 to-and-fro movement through drive link 3.Ben is that the distance of center circle of the center of drive link set collar 10 and rotating disk 2 can not rotate with the inwall collision of piston cylinder 5 because of drive link 3 to guarantee rotating disk 2 from the radius that does not exceed piston cylinder 5.
As Fig. 4 and shown in Figure 8, described air chamber 6 is the cavitys that the tubular at the end is arranged, the circular tube external wall on the top of this cavity has external thread, internal thread is arranged at the bottom of the cylinder body of piston cylinder 5, both connect by thread seal, and the cylinder body of piston cylinder 5 and air chamber 6 pipe body contact portions all have a semicircular groove, and they form the hole of a circle, and this circular hole is built-in with cushion rubber 13 and seals;
The structure of end retaining valve 15 is the same with side retaining valve 14, and the bottom that sealing one end of end retaining valve 15 and sidewall aperture run through air chamber 6 places the inside of air chamber 6, as the gas outlet of end retaining valve 15; End retaining valve 15 does not stretch out air chamber 6 after sealing the bottom sealing of an end and air chamber 6, as the air intake opening of end retaining valve 15.End retaining valve 15 with the course of work of air chamber 6 is: if the air pressure of air chamber 6 less than the air pressure of the gas outlet of end retaining valve 15, air chamber 6 outer gases will strut the sebific duct of closed pores, gas promptly flows into the air chamber 6 from the gas outlet of end retaining valve 15; If the air pressure of air chamber 6 is greater than the air pressure of end retaining valve 15 gas outlets, the sebific duct on the aperture of end retaining valve 15 sidewalls is compressed by air pressure, sealing end retaining valve 15, and the gas in the air chamber 6 then can not flow out from end retaining valve 15 gas outlets.End retaining valve 15 effect be only allow in the air chamber 6 gas by the air intake opening of end retaining valve 15 through the gas outlet unidirectional flowing in the air chamber 6.
Shown in Fig. 3,4,9,10, described sampler is made up of sampling bottle 17, drain tap 18, sample introduction valve 19 and sealing plug 20;
Sampling bottle 17 is by 20 sealings of sealing plug, and an end of sample introduction valve 19 runs through sealing plug 20 and is tightly connected;
The negative pressure that the manual vacuum generator produces can make sampling bottle 17 also produce negative pressure by end retaining valve 15, gas outlet 16 and sample introduction valve 19;
When the negative pressure in the sampling bottle 17 reaches a threshold value, soil pore water can enter sampling bottle 17 through underground unit, sample introduction valve 18, the soil aperture water yield of collecting to the sampling bottle 17 reaches requirement, close sample introduction valve 18, drain tap 19, take off gas outlet 16 and sample introduction pipe 21, promptly finished the once sampling of a sampling spot.
As shown in Figure 8, the filtrator of described underground unit is made up of support bar 22, filtering head 23 and joint 25;
Joint 25 is round tubes, and an end of joint 25 inserts in the described water storage room 26, so that draw soil pore water;
Downward masterpiece is used for stay pipe 22, and support bar 22 will drive sample introduction pipe 21, filtering head 23 enters in the soil to be measured of certain depth, thereby reach the purpose that extracts pore water in soil to be measured.
The concrete technical parameter of hand-held provided by the invention soil aperture water sampler is as follows: the whole stainless steel that adopts of manual vacuum generator is made.Rotating disk 2 diameters are identical with piston cylinder 5 diameters, and drive link 3 is a diameter 6-8mm stainless steel, length 6-10cm; Piston length 3-5cm; Piston cylinder 5 diameter 5-10cm, length 15-20cm conveniently hands and carries; Air chamber 6 height 3-5cm; Ball 12 radius 0.5-1cm; The sebific duct requirement of strength is indeformable under suction function, guarantees that sample and air-flow pass through smoothly.About sample introduction valve 18 and drain tap 19 length 1.5cm.Rotating disk 2 thick 2mm, the wall thickness 1mm of other assemblies.
Sampling bottle 17 is the polyethylene bottle of 150-500mL in the sampler of the present invention, and the element that water logging goes out is few, can pollution water sample water quality; The sebific duct that connects filtrator and sampling bottle 17 is the tygon material, and requirement of strength is indeformable under suction function.Sample introduction valve 18 and drain tap 19 adopt commercially available miniature tygon valve, length 5cm.
Claims (1)
1. hand-held soil aperture water sampler is characterized in that, it is made up of unit, ground and underground unit; The unit is made up of manual vacuum generator and sampler on the ground, and underground unit is made up of filtrator;
Described manual vacuum generator is made up of handle (1), rotating disk (2), drive link (3), piston (4), piston cylinder (5) and air chamber (6);
Described handle (1) is that an end has externally threaded zigzag metal crank, have an externally threaded end to pass and fixedly connected with circular rotating disk (2) after sleeve (33) back is connected with the internal thread of sleeve pipe (31), sleeve pipe (31) is welded on the center of circular rotating disk (2); Turning handle (1) can drive circular rotating disk (2) and rotate; Fagging (27) is the upwardly extending semi-circular ring of cylinder body of piston cylinder (5), and the top of this semi-circular ring adopts semicircular plate to seal, and sleeve (33) is welded on the semicircular plate at back up pad (27) top, and handle (1) can rotate in sleeve (33);
Rotating disk (2) is a disk, and there is the fixed orifice (32) of an internal thread at the place of keeping to the side;
One end of drive link (3) is welded with a drive link set collar (10), having externally threaded standing screw (11) to pass described drive link set collar (10) back is threaded with fixed orifice (32), drive link (3) is connected with rotating disk (2), and the other end of drive link (3) has external thread;
Last assembly (4) is that bottom surface central authorities are the right cylinder of recessed cylindrical cavity, and described recessed cylindrical cavity has internal thread; Following assembly 8 is right cylinders, this cylindrical upper face center has the right cylinder of a projection, the right cylinder of described projection closely is connected by screw thread with recessed cylindrical cavity cooperation makes assembly (4) and following assembly (8) become a cylindrical piston (7), and piston (7) places the cylinder body of piston cylinder (5);
The right cylinder lower surface of described upward assembly (4) has a piston seal groove with the right cylinder upper surface intersection of following assembly (8) around the piston right cylinder, O-ring seal (9) places in the piston seal groove, when screwing assembly (4) and following assembly (8), O-ring seal (9) in the piston seal groove can be squeezed and be contacted with the inwall of piston cylinder 6, reach packed-piston and piston cylinder, and, because O-ring seal (9) has elasticity, compacted glue O-ring seal (9) can not break away from the piston seal groove in sealing;
There is a rounding platform chamber (28) described center of going up the top of assembly (4), and the episphere chamber (29) of rounding platform chamber (28) below last assembly (4) connects;
Also there be the size lower semisphere chamber (30) the same with the hemisphere chamber (29) of last assembly (4) in the described cylindrical central authorities of assembly (8) down, and two hemisphere chambeies constitute a ball cavity;
Ball (12) places in the described ball cavity, is drilled with the hole of internal thread on the ball (12), and drive link (3) other end is fastenedly connected by external thread and ball (12); When rotating disk (2) drove drive link (3) motion, ball (12) can rotate in described round empty cavity;
The distance of center circle of the center of drive link set collar (10) and rotating disk (2) is from the radius that does not exceed piston cylinder (5);
Described air chamber (6) is a cavity that the tubular at the end is arranged, the circular tube external wall on the top of this cavity has external thread, internal thread is arranged at the bottom of the cylinder body of piston cylinder (5), both connect by thread seal, and the cylinder body of piston cylinder (5) and air chamber (6) pipe body contact portion all have a semicircular groove, when piston cylinder (5) and air chamber (6) when screwing, two semi-circular recesses are formed the hole of a circle, and this circular hole is built-in with cushion rubber (13) and seals;
Side retaining valve (14) and end retaining valve (15) are arranged respectively at the cavity wall of the tubular of described air chamber (6) and bottom, and side retaining valve (14) is the short tube that end opening other end sealing, sidewall have aperture; Tightly being enclosed within side retaining valve (14) with a bit of preferably flexible rubber hose of elasticity upward seals the aperture of sidewall, and the aperture of sealing and an end of sealing are exposed to outside the cavity of air chamber (6), the cavity wall that the openend of side retaining valve (14) runs through air chamber (6) is communicated with the air intake opening of back as side retaining valve (14) with air chamber (6), the aperture of the sidewall of side retaining valve (14) is as the gas outlet of side retaining valve (14);
The structure of end retaining valve (15) is the same with side retaining valve (14), and the bottom that sealing one end of end retaining valve (15) and sidewall aperture run through air chamber (6) places the inside of air chamber (6), as the gas outlet of end retaining valve (15); End retaining valve (15) does not stretch out air chamber (6) after sealing the bottom sealing of an end and air chamber (6), as the air intake opening of end retaining valve (15);
Described sampler is made up of sampling bottle (17), drain tap (18), sample introduction valve (19) and sealing plug (20);
Sampling bottle (17) is by sealing plug (20) sealing, and an end of sample introduction valve (19) runs through sealing plug (20) and is tightly connected;
Sample introduction valve (18) one ends run through sealing plug (20) and are tightly connected with sealing plug (20), and the other end and sample introduction pipe (21) are tightly connected;
The filtrator of described underground unit is made up of support bar (22), filtering head (23) and joint (25);
Filtering head (23) is the hollow circular cylinder of being made by porous ceramics, and the central upper sidewall of filtering head (23) is distributed with micropore (24), and the bottom of filtering head (23) is water storage room (26);
Joint (25) is a round tube, and an end of joint (25) inserts in the described water storage room (26);
Support bar (22) is the pipe of metal or rigid plastic, the upper end of its lower end and filtering head (23) sticks with glue and connects or weld, there is lid on its top, and there is a hole its upper end, and sample introduction pipe (21) places in the support bar (22) by this hole and is tightly connected with the upper end of joint (25); Sample introduction pipe (21) is connected with sample introduction valve (18); Support bar (22) upper side wall indicates scale, and wherein zero size is counted by filtering head (23) middle part;
Support bar (22) outer wall is scraped the coarse processing of hair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010592968.XA CN102109422B (en) | 2010-12-17 | 2010-12-17 | Handheld soil pore water sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010592968.XA CN102109422B (en) | 2010-12-17 | 2010-12-17 | Handheld soil pore water sampler |
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| CN102109422A true CN102109422A (en) | 2011-06-29 |
| CN102109422B CN102109422B (en) | 2015-11-25 |
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| CN109916675A (en) * | 2019-04-18 | 2019-06-21 | 中国科学院寒区旱区环境与工程研究所 | A kind of soil aperture air contains laden water collecting device |
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| CN103712820A (en) * | 2013-12-06 | 2014-04-09 | 中国科学院东北地理与农业生态研究所 | Wetland sampling platform device |
| CN104502148A (en) * | 2014-12-05 | 2015-04-08 | 苏州国环环境检测有限公司 | Soil solution sampler |
| CN106370474B (en) * | 2016-08-26 | 2018-10-12 | 环境保护部南京环境科学研究所 | Flow sampling apparatus and its method of sampling in soil |
| CN106370474A (en) * | 2016-08-26 | 2017-02-01 | 环境保护部南京环境科学研究所 | Sampling device and sampling method for water flow in soil |
| CN106525501A (en) * | 2016-11-16 | 2017-03-22 | 江苏智石科技有限公司 | Removable soil solution extraction device |
| CN106769356A (en) * | 2016-12-05 | 2017-05-31 | 北京师范大学 | A kind of micro- plastics extraction element and its method for preventing sample by microfibre pollution |
| CN108152082A (en) * | 2017-12-14 | 2018-06-12 | 青岛海洋地质研究所 | A kind of Sediment Pore Water and dissolved gas harvester |
| CN109211621A (en) * | 2018-10-25 | 2019-01-15 | 湖南环境生物职业技术学院 | A kind of matrix sampler for artificial swamp determining heavy metals |
| CN109406216A (en) * | 2018-12-29 | 2019-03-01 | 南昌工程学院 | A kind of soil liquid sampler and sampling method |
| CN109406216B (en) * | 2018-12-29 | 2023-10-27 | 南昌工程学院 | Soil solution sampling device and sampling method |
| CN109916675A (en) * | 2019-04-18 | 2019-06-21 | 中国科学院寒区旱区环境与工程研究所 | A kind of soil aperture air contains laden water collecting device |
| CN112630358A (en) * | 2020-12-31 | 2021-04-09 | 堀扬精密量仪(上海)有限公司 | Gas chromatograph for quantitative detection of sample |
| CN112630358B (en) * | 2020-12-31 | 2022-12-30 | 河北莱博瑞分析仪器有限公司 | Gas chromatograph for quantitatively detecting sample |
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