CN221006957U - Integrated underground soil gas sampler - Google Patents
Integrated underground soil gas sampler Download PDFInfo
- Publication number
- CN221006957U CN221006957U CN202323017676.5U CN202323017676U CN221006957U CN 221006957 U CN221006957 U CN 221006957U CN 202323017676 U CN202323017676 U CN 202323017676U CN 221006957 U CN221006957 U CN 221006957U
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- CN
- China
- Prior art keywords
- sampling
- pipe
- soil gas
- gas sampler
- main pipe
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- 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.)
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- 239000002680 soil gas Substances 0.000 title claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 81
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 241001449342 Chlorocrambe hastata Species 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 12
- 238000005553 drilling Methods 0.000 abstract 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- -1 polydimethylsiloxane Polymers 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an integrated underground soil gas sampler which comprises a hollow main pipe, wherein the top end of the main pipe is connected with a compression rod in a sliding manner, the compression rod and the main pipe are locked and fixed through a locking mechanism, the top of the compression rod is provided with a holding rod, and a positioning sheet is arranged below the holding rod; the bottom of the main pipe can be detachably connected with a sampling pipe, a bearing table with a hole in the middle is arranged in the sampling pipe, a sealing and matching plugging mechanism is arranged in a hole of the bearing table, the sampling bottle can be detachably arranged at the bottom of the plugging mechanism and can be taken out of the sampling pipe through the plugging mechanism, a plurality of ventilation holes distributed around the sampling bottle are further formed in the sampling pipe, and a spearhead is further arranged at the bottom of the sampling pipe. The utility model has simple and convenient sampling operation and good sampling depth precision control, can also avoid the soil disturbance problem possibly occurring in deep hole drilling, and ensures that the sampling can be completed once.
Description
Technical Field
The utility model relates to the technical field of soil environment detection, in particular to an integrated underground soil gas sampler.
Background
In the current soil gas sampling process, a deep hole is usually required to be drilled in advance, then a sampling bottle with an adsorption material inside is placed into the bottom of the deep hole to be fixed, finally a sponge is plugged into the upper part of the sampling bottle to separate the space at the bottom of the deep hole, VOC can be diffused into the sampling bottle and gathered on the adsorption material, after the sampling bottle is placed for a period of time, sampling is completed, and then the sampling bottle is taken out to detect. The operation steps of the sampling mode are tedious, time and labor are wasted, the sampling bottle is inconvenient to take, place and fix, and the sampling depth is poor in precision control because the sampling bottle is manually placed. In addition, the sampling bottle may be covered by soil disturbance, which may cause sampling failure.
Disclosure of utility model
The utility model aims to solve the technical problems that in the prior art, the sampling steps are complicated, time and labor are wasted, the operation is inconvenient, the sampling depth precision is controlled poorly, and sampling failure is possibly caused by covering of a sampling bottle due to soil disturbance.
The technical scheme of the utility model is as follows: the integrated underground soil gas sampler comprises a hollow main pipe, wherein the top end of the main pipe is connected with a compression rod in a sliding manner, the compression rod and the main pipe are locked and fixed through a locking mechanism, the top of the compression rod is provided with a holding rod, and a positioning sheet is arranged below the holding rod; the bottom of the main pipe can be detachably connected with a sampling pipe, a bearing table with a hole in the middle is arranged in the sampling pipe, a sealing and matching plugging mechanism is arranged in a hole of the bearing table, the sampling bottle can be detachably arranged at the bottom of the plugging mechanism and can be taken out of the sampling pipe through the plugging mechanism, a plurality of ventilation holes distributed around the sampling bottle are further formed in the sampling pipe, and a spearhead is further arranged at the bottom of the sampling pipe.
Further, the locking mechanism comprises at least one locking bolt which is in threaded connection with the main pipe and can abut against the locking compression bar.
Furthermore, the outer surfaces of the main pipe and the compression bar are marked with scales.
Further, in the utility model, the sampling tube is in threaded connection with the main pipe, and a first sealing clamping pad is arranged in the hole of the bearing table.
Furthermore, the plugging mechanism comprises a plug and a handle connected to the top of the plug, the plug penetrates through the bearing table and is in sealing fit with the first sealing clamp pad, the bottom of the plug is provided with a mounting groove, and a second sealing clamp pad is arranged in the mounting groove.
Furthermore, a connecting plate is arranged on the sampling bottle, the sampling bottle is inserted into the mounting groove to be tightly and closely jointed with the second sealing clamp pad, and the connecting plate is fixedly connected with the plug through a connecting bolt.
Further, in the utility model, the organic adsorption material is arranged in the sampling bottle, and the ventilation filter membrane is arranged on the bottle cap of the sampling bottle.
Furthermore, the outside of the air hole is covered with an anti-blocking filter membrane.
Compared with the prior art, the utility model has the following advantages: the sampler adopts an integrated design, the sampling bottle can be fixedly arranged in the sampling tube at the lower part, and the sampling tube and the sampling bottle are both in detachable design, so that the replacement of different sampling bottles is facilitated; according to different sampling depth, the whole length of the sampler is adjustable, the design of bottom spearhead is convenient for insert in the soil fast, and the last male position of upper portion spacer positionable can accomplish fast and place, and gas can pass the bleeder vent and get into the bottle after deep soil and begin to gather, the sampling is accomplished the back direct extraction sampler can, easy operation is convenient, and sampling depth precision control is good, can also avoid boring the soil disturbance problem that the deep hole probably appears, guarantees that the sampling can once accomplish.
Drawings
FIG. 1 is a schematic diagram of a sampler according to the present utility model;
FIG. 2 is a schematic view showing the installation of the sample bottle according to the present utility model;
FIG. 3 is a schematic illustration of the engagement of the closure mechanism with the sample vial in accordance with the present utility model;
fig. 4 is a schematic diagram of the use state of the sampler according to the present utility model.
Wherein: 1. a main pipe; 2. a compression bar; 3. a locking bolt; 4. a grip; 5. a positioning sheet; 6. a sampling tube; 7. a receiving table; 71. a first sealing clip pad; 8. a plugging mechanism; 81. a plug; 82. a handle; 83. a mounting groove; 84. a second sealing clip pad; 9. sampling bottle; 91. a connecting plate; 92. a connecting bolt; 93. an organic matter adsorbing material; 94. a ventilation filter membrane; 10. ventilation holes; 11. spearhead.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
Examples:
The utility model relates to a concrete implementation mode of an integrated underground soil gas sampler, which mainly comprises a hollow main pipe 1, wherein the top end of the main pipe 1 is slidably connected with a compression bar 2, two locking bolts 3 are arranged between the compression bar 2 and the main pipe 1, and the locking bolts 3 are in threaded connection with the main pipe 1 and can abut against the locking compression bar 2.
The top of depression bar 2 is equipped with holding rod 4, and the below of holding rod 4 is equipped with spacer 5.
In this embodiment, the outer surfaces of the main tube 1 and the compression bar 2 are marked with scales, which is convenient for observation when the length of the sampler is adjusted.
The bottom thread connection of being responsible for 1 has sampling pipe 6, is equipped with the interlude and holds the platform 7 of trompil in the sampling pipe 6, holds the downthehole sealed clamp pad 71 of being equipped with of platform 7.
Be equipped with shutoff mechanism 8 on accepting the platform 7, combine the fig. 2, the fig. 3 shows, shutoff mechanism 8 mainly includes end cap 81, connects the handle 82 at end cap 81 top, and end cap 81 passes accepting the platform 7 and seals the laminating with first sealed clamp pad 71, can separate the interior space of sampling tube 6 into upper and lower two parts.
The bottom of the plug 81 is provided with a mounting groove 83 for mounting the sampling bottle 9, and a second sealing clamping pad 84 is arranged in the mounting groove 83. The sampling bottle 9 is further provided with a connecting plate 91, and when the sampling bottle 9 is installed, the connecting plate 91 is fixedly connected with the plug 81 through a connecting bolt 92 after the sampling bottle 9 is inserted into the installation groove 83 and tightly attached to the second sealing clamping pad 84.
The sampling bottle 9 has a specific structure that an organic adsorption material 93 is arranged in the sampling bottle, a ventilation filter membrane 94 is arranged on the bottle cap, and the ventilation filter membrane 94 can be a polydimethylsiloxane membrane. The VOC can diffuse through the polydimethylsiloxane membrane into the sample bottle 9 and aggregate onto the organic adsorbent material 93.
Furthermore, the sampling tube 6 is also provided with a plurality of ventilation holes 10 distributed around the sampling bottle 9, and the outside of the ventilation holes 10 is covered with an anti-blocking filter membrane.
The bottom of the sampling tube 6 is also provided with a spearhead 11 to facilitate quick insertion into the soil.
When the sampler is specifically used, the sampling bottle 9 is firstly installed at the bottom of the plug 81, the sampling bottle 9 is fixed by using the connecting bolt 92, then the sampling bottle 9 is integrally inserted and installed on the bearing table 7 through the handle 82, and finally the sampling tube 6 is screwed and installed at the bottom end of the main pipe 1, so that the integral assembly of the sampler is completed. When the sampler samples, the whole length is adjusted in advance according to the sampling depth, the compression bar 2 is fixed by the locking bolt 3 after being slid to a proper position, then the holding bar 4 is held by hand, the bottom spearhead 11 is used for being quickly inserted into soil until the locating piece 5 is stopped after being contacted with the surface of the soil, and the placement of the sampling bottle 9 is completed, as shown in fig. 4. After the soil is penetrated into the air holes 10, the VOC can diffuse into the sampling bottle 9 through the polydimethylsiloxane film and gather on the organic matter adsorbing material 93, after a period of time, the sampler is pulled out to take out the sampling bottle 9, the quality of the adsorbed organic matters is detected through GC-MS, and the concentration of the organic matters in the soil is calculated through the absorption rate, so that a complete sampling detection process is completed.
The above embodiments are merely for illustrating the technical concept and features of the present utility model, and are not intended to limit the scope of the present utility model to those skilled in the art to understand the present utility model and implement the same. All modifications made according to the spirit of the main technical proposal of the utility model should be covered in the protection scope of the utility model.
Claims (8)
1. An integral type underground soil gas sampler, its characterized in that: the device comprises a hollow main pipe (1), wherein the top end of the main pipe (1) is slidably connected with a pressing rod (2), the pressing rod (2) is locked and fixed with the main pipe (1) through a locking mechanism, the top of the pressing rod (2) is provided with a holding rod (4), and a positioning sheet (5) is arranged below the holding rod (4); the bottom of being responsible for (1) can be dismantled and be connected with sampling pipe (6), is equipped with the accepting bench (7) of middle trompil in sampling pipe (6), is equipped with sealed complex shutoff mechanism (8) in the downthehole of accepting bench (7), and sample bottle (9) can dismantle the installation and be in the bottom of shutoff mechanism (8) and can take out from sampling pipe (6) through shutoff mechanism (8) company, still be equipped with a plurality of bleeder vents (10) that distribute around sample bottle (9) on sampling pipe (6), the bottom of sampling pipe (6) still is equipped with spearhead (11).
2. The integrated subsurface soil gas sampler as claimed in claim 1 wherein: the locking mechanism comprises at least one locking bolt (3), and the locking bolt (3) is in threaded connection with the main pipe (1) and can abut against the locking compression bar (2).
3. The integrated subsurface soil gas sampler as claimed in claim 1 wherein: the outer surfaces of the main pipe (1) and the compression bar (2) are marked with scales.
4. The integrated subsurface soil gas sampler as claimed in claim 1 wherein: the sampling tube (6) is in threaded connection with the main tube (1), and a first sealing clamping pad (71) is arranged in a hole of the bearing table (7).
5. The integrated subsurface soil gas sampler as claimed in claim 4 wherein: the plugging mechanism (8) comprises a plug (81) and a handle (82) connected to the top of the plug (81), the plug (81) penetrates through the bearing table (7) and is in sealing fit with the first sealing clamp pad (71), a mounting groove (83) is formed in the bottom of the plug (81), and a second sealing clamp pad (84) is arranged in the mounting groove (83).
6. The integrated subsurface soil gas sampler as claimed in claim 5 wherein: the sampling bottle (9) is provided with a connecting plate (91), the sampling bottle (9) is inserted into the mounting groove (83) to be tightly adhered to the second sealing clamp pad (84), and the connecting plate (91) is fixedly connected with the plug (81) through a connecting bolt (92).
7. The integrated subsurface soil gas sampler as claimed in claim 1 wherein: an organic matter adsorption material (93) is arranged in the sampling bottle (9), and a ventilation filter membrane (94) is arranged on the bottle cap of the sampling bottle (9).
8. The integrated subsurface soil gas sampler as claimed in claim 1 wherein: the outside of the air hole (10) is covered with an anti-blocking filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323017676.5U CN221006957U (en) | 2023-11-09 | 2023-11-09 | Integrated underground soil gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323017676.5U CN221006957U (en) | 2023-11-09 | 2023-11-09 | Integrated underground soil gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221006957U true CN221006957U (en) | 2024-05-24 |
Family
ID=91086680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323017676.5U Active CN221006957U (en) | 2023-11-09 | 2023-11-09 | Integrated underground soil gas sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221006957U (en) |
-
2023
- 2023-11-09 CN CN202323017676.5U patent/CN221006957U/en active Active
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