CN210513826U - Soil gas sample detection collector - Google Patents
Soil gas sample detection collector Download PDFInfo
- Publication number
- CN210513826U CN210513826U CN201921326997.4U CN201921326997U CN210513826U CN 210513826 U CN210513826 U CN 210513826U CN 201921326997 U CN201921326997 U CN 201921326997U CN 210513826 U CN210513826 U CN 210513826U
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- Prior art keywords
- gas
- loop bar
- drill bit
- soil
- gas collecting
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Abstract
The utility model discloses a soil gas sample detection collector relates to gas collector technical field, including hollow discharge, the one end of discharge is connected with the drill bit, one side that the discharge is close to the drill bit is provided with a plurality of discharge, the outside sliding connection of discharge has the loop bar that is used for sealing the discharge, the one end of loop bar is extended and is connected with the tool joint to the one side of keeping away from the drill bit, form sealed chamber between tool joint and the loop bar, the discharge extends and switches on with sealed chamber to the one end of keeping away from the drill bit, be connected with the breather pipe that switches on with sealed chamber on the tool joint. The utility model discloses can carry out the shutoff to the gas collecting hole on the collector for the in-process soil that the collector bored into soil can not get into in the middle of the gas collecting hole, reduces the possibility that the gas collecting hole blockked up.
Description
Technical Field
The utility model relates to a gas collector, more specifically say, it relates to a soil gas sample detection collector.
Background
Soil air is a generic term for gases present in soil. Respectively exist in soil pores in a free state, exist in soil water in a dissolved state and exist in soil particles in an adsorbed state. When detecting soil air, a soil gas sample sampler is used for sampling gas, and then the content of components in the soil gas is detected.
The utility model patent with publication number CN 206440510U discloses a soil gas rapid detection and active sampling device, which comprises a drill rod assembly, a gas rapid detector, a sample collector and a three-way valve; the drill rod assembly comprises a drill bit, a metal filter screen pipe, a drill rod and a drill rod connector; a gas collecting core hole which is arranged along the axial direction of the drill rod is arranged in the drill rod, a vent hole is arranged in the drill rod joint, and the metal filter screen pipe is a telescopic filter screen pipe; the lower end of the drill rod is connected with the metal filter screen pipe and the drill bit in sequence, and the upper end of the drill rod is connected with the lower end of the drill rod joint; the upper end of the drill rod joint is connected with a downward pressing power device; the inlet of the vent hole is communicated with the upper end of the gas collecting core hole, and the outlet of the vent hole is connected with the inlet of the three-way valve; the gas rapid detector is connected with one outlet of the three-way valve, and the sample collector is connected with the other outlet of the three-way valve; the inner wall of the gas collecting core hole is coated with the polytetrafluoroethylene membrane, and the prior art has the advantages of simple structure, convenience in operation, accuracy, reliability and convenience in installation and disassembly.
However, when the drill rod assembly drills into the lower part of the soil, the soil is easy to enter into the drill rod assembly from the gas collecting core hole, although the gas collecting core hole is externally provided with a filtering device for blocking, the soil still blocks the gas collecting core hole after long-time use, and the gas collection efficiency of the drill rod assembly is affected.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a soil gas sample detection collector can carry out the shutoff to the gas collection hole on the collector for the in-process soil that the collector bored into soil can not get into in the middle of the gas collection hole, reduces the possibility that gas collection hole blockked up.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a soil gas sample detection collector, includes hollow gas collecting pipe, the one end of gas collecting pipe is connected with the drill bit, one side that the gas collecting pipe is close to the drill bit is provided with a plurality of gas collecting holes, the outside sliding connection of gas collecting pipe has the loop bar that is used for sealing the gas collecting hole, the one end of loop bar is extended and is connected with drill rod joint to the one side of keeping away from the drill bit, form sealed chamber between drill rod joint and the loop bar, the gas collecting pipe extends and switches on with sealed chamber to the one end of keeping away from the drill bit, be connected with the breather pipe that switches on with sealed chamber on the drill rod.
By adopting the technical scheme, the loop bar is connected to the outside of the gas collecting pipe in a sliding manner, and the loop bar can slide along the gas collecting pipe, so that the loop bar can be blocked outside the gas collecting hole in a sliding manner; when the gas collecting pipe needs to be drilled into the soil, the sleeve rod can be slid to the outside of the gas collecting hole, so that the outside soil can not directly enter the gas collecting hole, and the gas collecting hole can be prevented from being blocked by the in-process soil drilled downwards.
The utility model discloses further set up to: the outer portion of the gas collecting pipe is provided with a first external thread, and the inner wall of the loop bar is provided with a first internal thread matched with the first external thread.
Through adopting above-mentioned technical scheme, through adopting internal thread one, external screw thread two of mutually supporting for the loop bar can rotate through the screw-thread fit and realize the relative slip, thereby can adjust the position of loop bar and discharge comparatively steadily.
The utility model discloses further set up to: and a sealing plug is arranged on the outer side of one end of the gas collecting pipe, which is far away from the drill bit.
Through adopting above-mentioned technical scheme, through adopting sealed end cap, when the relative gas collecting pipe of loop bar moves down, sealed end cap can carry out the shutoff to the clearance between loop bar and the gas collecting pipe to make the gas appearance in the middle of the soil can follow the gas collecting pipe and get into, avoid gas to be adsorbed again and get into the gap in-process soil between loop bar and the gas collecting pipe also by the absorption entering, avoid soil to block up the gap between loop bar and the gas collecting pipe.
The utility model discloses further set up to: the gas collecting pipe is sleeved with a plurality of filter sheets corresponding to the outside of the gas inlet hole, and one end of the loop bar close to the drill bit is provided with an accommodating cavity for accommodating the filter sheets.
Through adopting above-mentioned technical scheme, set up the filter screen through the adoption, the filter screen can carry out the separation to soil to a certain extent to hold the chamber through the adoption, hold the chamber and can hold the cassette, make the loop bar still can seal the gas collection hole.
The utility model discloses further set up to: the filter sheets are connected through the filter screen, the filter screen is soft, and the filter sheets on the two sides are respectively connected with the drill bit and the loop bar.
Through adopting above-mentioned technical scheme, through setting up soft filter screen, can connect each cassette and form a whole for the loop bar forms flexible tensile at the slip in-process, can make the length of each cassette shorten after the compression, can hold into in the middle of the sealed chamber, is convenient for often accomodate.
The utility model discloses further set up to: the drill bit rotates to be connected on the loop bar, be provided with the connecting hole on the drill bit, be provided with the annular on the inner wall of connecting hole, the loop bar stretches into the one end of connecting hole and is provided with the bulge loop with the annular adaptation.
Through adopting above-mentioned technical scheme, through adopting the drill bit of rotating the connection for the discharge can be more smooth and easy at relative loop bar screw thread pivoted process, avoids rubbing too big and producing the hindrance between drill bit and the soil, thereby is convenient for carry out the screw thread regulation.
The utility model discloses further set up to: and one end of the sleeve rod, which is far away from the drill bit, is provided with a second external thread, and the drill rod joint is provided with a second internal thread matched with the second external thread.
Through adopting above-mentioned technical scheme, make drill rod joint can with drilling rod interconnect through the structure that sets up threaded connection, form a relatively sealed whole.
The utility model discloses further set up to: and a limiting ring used for abutting against the loop bar for sealing is arranged on the inner wall of the loop bar structure.
Through adopting above-mentioned technical scheme, through setting up the spacing ring, can carry on spacingly to the position between loop bar and the gas collecting pipe on the one hand, on the other hand can seal drilling rod and tool joint through the spacing ring to increase the leakproofness of collector.
The utility model discloses further set up to: the drill pipe joint is kept away from to the breather pipe, and the one end that connects gradually has connected with gas filter, air pump and sample collector, be connected with gaseous short-term test appearance through three way connection between gas filter and the air pump.
Through adopting above-mentioned technical scheme, through setting up gas filter, air pump and sample collector to connect through the breather pipe and form a whole, thereby collect the gas appearance in the soil, and carry out short-term test to soil gas appearance.
To sum up, the utility model discloses following beneficial effect has: by connecting the sleeve rod outside the gas collecting pipe in a sliding manner, when the gas collecting pipe needs to be drilled into the soil, the sleeve rod can slide to the outside of the gas collecting hole, so that the external soil cannot directly enter the gas collecting hole, and the gas collecting hole can be prevented from being blocked by the soil in the drilling process; the sleeve rod can rotate in a thread fit manner to realize relative sliding by adopting the internal thread I and the external thread II which are matched with each other, so that the positions of the sleeve rod and the gas collecting pipe can be stably adjusted; through setting up soft filter screen, can connect each cassette and form a whole to can be with the soil separation in the outside of gas collection hole.
Drawings
FIG. 1 is a schematic view of a soil gas sample detection collector according to the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. a loop bar; 2. a drill bit; 3. a gasket; 4. a filter disc; 5. a drill pipe joint; 6. a breather pipe; 7. a gas filter; 8. a three-way joint; 9. an air pump; 10. a sample collector; 11. a gas rapid detector; 12. a gas collecting pipe; 13. connecting holes; 14. a convex ring; 15. an air inlet; 16. a protective cover; 17. an accommodating chamber; 18. a filter screen; 19. the first external thread; 20. a first internal thread; 21. sealing the plug; 22. a second external thread; 23. a second internal thread; 24. a limiting ring; 25. the chamber is sealed.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The first embodiment is as follows: a soil gas sample detection collector, as shown in figure 1-2, includes hollow gas collecting pipe 12, and the one end of gas collecting pipe 12 is connected with drill bit 2, and drill bit 2 rotates and connects on loop bar 1, is provided with connecting hole 13 on the drill bit 2, is provided with the annular on the inner wall of connecting hole 13, and the one end that loop bar 1 stretched into connecting hole 13 is provided with bulge loop 14 with the annular adaptation for drill bit 2 can be rotatory round gas collecting pipe 12.
One side of the gas collecting pipe 12 close to the drill bit 2 is provided with a plurality of gas collecting holes, the outside of the gas collecting pipe 12 is connected with a loop bar 1 used for sealing the gas collecting holes in a sliding mode, the outside of the gas collecting pipe 12 is provided with a first external thread 19, and the inner wall of the loop bar 1 is provided with a first internal thread 20 matched with the first external thread 19, so that the loop bar 1 can rotate through thread fit to realize relative sliding, and the positions of the loop bar 1 and the gas collecting pipe 12 can be adjusted relatively stably.
The outside that drill bit 2 was kept away from to gas collecting tube 12 is provided with sealed end cap 21, and when the relative gas collecting tube 12 of loop bar 1 moved down, sealed end cap 21 can carry out the shutoff to the clearance between loop bar 1 and the gas collecting tube 12 to make the gas appearance in the middle of the soil can follow and get into in the middle of gas collecting tube 12, avoid gas to be adsorbed again and get into the gap in-process soil between loop bar 1 and the gas collecting tube 12 also by the absorption entering, avoid soil to block up the gap between loop bar 1 and the gas collecting tube 12.
The one end of loop bar 1 is extended to the one side of keeping away from drill bit 2 and is connected with tool joint 5, the one end that drill bit 2 was kept away from to loop bar 1 is provided with two 22 external screw threads, be provided with two 23 internal thread with two 22 external screw threads adaptations on tool joint 5, make tool joint 5 can with drilling rod interconnect through the structure that sets up threaded connection, form a relatively sealed whole, be provided with on the inner wall of loop bar 1 structure and be used for supporting the spacing ring 24 that presses sealedly with loop bar 1, can carry on spacingly to the position between loop bar 1 and the gas collecting pipe 12 on the one hand, on the other hand can seal up drilling rod and tool joint 5 through spacing ring 24, thereby increase the leakproofness of collector. A sealing cavity 25 is formed between the drill rod joint 5 and the sleeve rod 1, the gas collecting pipe 12 extends towards one end far away from the drill bit 2 and is communicated with the sealing cavity 25, and the drill rod joint 5 is connected with a vent pipe 6 communicated with the sealing cavity 25.
The one end that drilling rod joint 5 was kept away from to breather pipe 6 has connected gradually gas cleaner 7, air pump 9 and sample collector 10, is connected with gaseous short-term test appearance 11 through three way connection 8 between gas cleaner 7 and the air pump 9, and gas cleaner 7, air pump 9 and sample collector 10 to connect through breather pipe 6 and form a whole, thereby collect the gas appearance in the soil, and carry out short-term test to soil gas appearance.
In specific implementation, soil for drilling detection is selected, the loop bar 1 is rotated by threads, the loop bar 1 slides downwards along the gas collecting pipe 12, the protective cover 16 at the lower end of the loop bar 1 is abutted against the upper part of the drill bit 2, the gasket 3 made of rubber materials is bonded on the drill bit 2 for sealing treatment, meanwhile, the lower end of the loop bar 1 pushes each filter sheet 4 and each filter screen 18, the distance between each filter sheet 4 and each filter screen 18 is compressed, the length of each filter sheet 4 can be shortened after compression, the filter sheets can be accommodated in the sealing cavity 25, and the gas inlet 15 on the gas collecting pipe 12 is blocked; after plugging is completed, the loop bar 1 and the gas collecting pipe 12 are inserted into soil, the loop bar 1 is rotated through threads, the loop bar 1 is enabled to rotate upwards along the gas collecting pipe 12 through the threads, the upper end of the loop bar 1 is enabled to be pressed and sealed with a sealing plug 21 on the gas collecting pipe 12, a gap between the loop bar 1 and the gas collecting pipe 12 is plugged through the sealing plug 21, then the drill rod joint 5 is connected to the upper end of the loop bar 1 through matching between a second external thread 22 and a second internal thread 23, and a limiting ring 24 on the inner side of the drill rod joint 5 is enabled to be pressed and sealed with the upper end of the loop bar 1, so that a sealing cavity 25 communicated with the gas collecting pipe 12 is formed; the air pump 9 is electrified to operate, other parts in the soil are pumped into the sample collector 10 along the air inlet 15, the gas collecting pipe 12, the sealing cavity 25 and the vent pipe 6, and the other parts passing through are filtered by the gas filter 7 to prevent large-particle impurities from entering the sample collector 10; meanwhile, the gas in the soil can be detected by the gas quick detector 11 connected to the vent pipe 6.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a soil gas sample detection collector, includes hollow gas collecting pipe (12), the one end of gas collecting pipe (12) is connected with drill bit (2), one side that gas collecting pipe (12) are close to drill bit (2) is provided with a plurality of gas collecting holes, its characterized in that: the outside sliding connection of gas collecting pipe (12) has loop bar (1) that is used for sealing the gas collection hole, the one end of loop bar (1) extends and is connected with drill rod joint (5) to the one side of keeping away from drill bit (2), form sealed chamber (25) between drill rod joint (5) and loop bar (1), gas collecting pipe (12) extend and switch on with sealed chamber (25) to the one end of keeping away from drill bit (2), be connected with breather pipe (6) that switch on with sealed chamber (25) on drill rod joint (5).
2. The soil gas sample collector of claim 1, wherein: the outside of the gas collecting pipe (12) is provided with a first external thread (19), and the inner wall of the loop bar (1) is provided with a first internal thread (20) matched with the first external thread (19).
3. The soil gas sample collector of claim 1, wherein: and a sealing plug (21) is arranged on the outer side of one end of the gas collecting pipe (12) far away from the drill bit (2).
4. The soil gas sample collector of claim 1, wherein: the gas collecting pipe (12) is sleeved with a plurality of filter sheets (4) corresponding to the outside of the gas inlet hole (15), and one end of the loop bar (1) close to the drill bit (2) is provided with an accommodating cavity (17) for accommodating the filter sheets (4).
5. The soil gas sample collector of claim 4, wherein: the filter discs (4) are connected through a filter screen (18), the filter screen (18) is soft, and the filter discs (4) on two sides are respectively connected with the drill bit (2) and the loop bar (1).
6. The soil gas sample collector of claim 1, wherein: drill bit (2) rotate to be connected on loop bar (1), be provided with connecting hole (13) on drill bit (2), be provided with the annular on the inner wall of connecting hole (13), the one end that loop bar (1) stretched into connecting hole (13) is provided with bulge loop (14) with the annular adaptation.
7. The soil gas sample collector of claim 1, wherein: and one end of the sleeve rod (1) far away from the drill bit (2) is provided with a second external thread (22), and a second internal thread (23) matched with the second external thread (22) is arranged on the drill rod joint (5).
8. The soil gas sample collector of claim 7, wherein: and a limiting ring (24) which is used for abutting against the loop bar (1) for sealing is arranged on the inner wall of the loop bar (1).
9. The soil gas sample collector of claim 1, wherein: the drill pipe joint is characterized in that one end, far away from the drill pipe joint (5), of the vent pipe (6) is sequentially connected with a gas filter (7), a gas pump (9) and a sample collector (10), and a gas quick detector (11) is connected between the gas filter (7) and the gas pump (9) through a three-way joint (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326997.4U CN210513826U (en) | 2019-08-15 | 2019-08-15 | Soil gas sample detection collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326997.4U CN210513826U (en) | 2019-08-15 | 2019-08-15 | Soil gas sample detection collector |
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| Publication Number | Publication Date |
|---|---|
| CN210513826U true CN210513826U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921326997.4U Expired - Fee Related CN210513826U (en) | 2019-08-15 | 2019-08-15 | Soil gas sample detection collector |
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| Country | Link |
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| CN (1) | CN210513826U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198612U1 (en) * | 2020-04-23 | 2020-07-21 | Андрей Георгиевич Зуев | Device for sampling gas from cavities in the ground |
| CN112485069A (en) * | 2020-10-29 | 2021-03-12 | 中国地质大学（武汉） | Active soil gas acquisition and detection system |
| CN112523678A (en) * | 2020-12-02 | 2021-03-19 | 中建八局环保科技有限公司 | Soil gas monitoring hole forming device and method and soil gas monitoring hole structure |
| CN113593193A (en) * | 2021-08-20 | 2021-11-02 | 徐州圣淮机械有限公司 | Portable real-time working condition wireless gas detection alarm device and alarm method thereof |
| CN117571400A (en) * | 2024-01-17 | 2024-02-20 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
-
2019
- 2019-08-15 CN CN201921326997.4U patent/CN210513826U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198612U1 (en) * | 2020-04-23 | 2020-07-21 | Андрей Георгиевич Зуев | Device for sampling gas from cavities in the ground |
| CN112485069A (en) * | 2020-10-29 | 2021-03-12 | 中国地质大学（武汉） | Active soil gas acquisition and detection system |
| CN112523678A (en) * | 2020-12-02 | 2021-03-19 | 中建八局环保科技有限公司 | Soil gas monitoring hole forming device and method and soil gas monitoring hole structure |
| CN113593193A (en) * | 2021-08-20 | 2021-11-02 | 徐州圣淮机械有限公司 | Portable real-time working condition wireless gas detection alarm device and alarm method thereof |
| CN113593193B (en) * | 2021-08-20 | 2022-12-13 | 徐州圣淮机械有限公司 | Portable real-time working condition wireless gas detection alarm device and alarm method thereof |
| CN117571400A (en) * | 2024-01-17 | 2024-02-20 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
| CN117571400B (en) * | 2024-01-17 | 2024-03-29 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 Termination date: 20210815 |