CN216934871U - Filtering device for measuring VOC in soil - Google Patents
Filtering device for measuring VOC in soil Download PDFInfo
- Publication number
- CN216934871U CN216934871U CN202122877420.6U CN202122877420U CN216934871U CN 216934871 U CN216934871 U CN 216934871U CN 202122877420 U CN202122877420 U CN 202122877420U CN 216934871 U CN216934871 U CN 216934871U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- locking
- filter
- filtering
- sleeve
- 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.)
- Expired - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 title claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000000706 filtrate Substances 0.000 description 7
- 239000012855 volatile organic compound Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a filtering device for measuring VOC in soil, which comprises a connecting cylinder and a locking cylinder, wherein the connecting cylinder comprises a filter membrane, a connecting port, a connecting end, a threaded belt and a filtering section, the connecting cylinder is a hollow cylinder, the end part of the connecting cylinder is respectively a connecting end and a filtering end, the center of the end part of the connecting end is provided with the connecting port, the outer side of the connecting port is provided with threads, the outer wall of the connecting cylinder is tightly attached to the connecting end and provided with the threaded belt, the end part of the filtering end is provided with the filter membrane, the edge of the filter membrane is covered on the outer side of the filtering end, the diameters of the threaded belt and the filtering end are smaller than that of the connecting end, the locking cylinder is a hollow cylinder, the inner diameter of the locking cylinder is larger than that of the filtering end and the threaded belt, the outer diameter of the locking cylinder is the same as that of the connecting end, the locking cylinder comprises a sleeve, a sealing ring and a limiting end, the inner wall of the sleeve is provided with locking threads, and the locking threads are matched with the threaded belt, and the joint of the sleeve and the limiting end is clamped with a sealing ring. The utility model has the advantages of convenient use and avoidance of needle head blockage.
Description
Technical Field
The utility model belongs to the field of machinery, and particularly relates to a filtering device for measuring VOC in soil.
Background
Present soil sample collection work can place sediment sample in the sample bottle, need handle according to the volatile organic compounds 'concentration of preliminary testing afterwards before the detection, add different reagents and handle, it just can be used for the detection to handle to finish, but in the in-process soil of handling the sample is direct to mix in the sample bottle with liquid, need use micro-injector to take a sample during the survey, micro-injector's sample volume is very few, and the needle tubing of syringe is very thin, even through the settlement of stewing, because the complexity of soil sample, some special areas sample is difficult to be separated after dissolving in the methyl alcohol, can take place the condition of jam syringe needle very easily when sampling with micro-injector.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a filtering device for measuring VOC in soil, which is convenient to use and avoids blockage, and is particularly suitable for the detection work of VOC in soil.
The technical scheme of the utility model is as follows: the utility model provides a survey filter equipment of VOC in soil, includes connecting cylinder and locking cylinder, the connecting cylinder includes filter membrane, connection port, link, thread belt, filter segment, the connecting cylinder is a hollow cylinder section of thick bamboo, and the tip of connecting cylinder is link and filter end respectively, and the tip center of link sets up connection port, the connection port outside sets up the screw thread, the connecting cylinder outer wall is hugged closely the link and is set up the thread belt, the tip of filter end sets up the filter membrane, the edge cladding of filter membrane is in the filter end outside, the diameter of thread belt and filter end is less than the link.
The locking barrel is a hollow cylindrical barrel, the inner diameter of the locking barrel is larger than the filtering end and the threaded belt, the outer diameter of the locking barrel is the same as the connecting end, the locking barrel comprises a sleeve, a sealing ring and a limiting end, locking threads are arranged on the inner wall of the sleeve, the length of the locking threads is equal to that of the threaded belt, the locking threads are matched with the threaded belt, the sealing ring is clamped at the joint of the sleeve and the limiting end, and the length of the sleeve is equal to that of the threaded belt plus the length of the filtering end.
Further, the sealing ring is a rubber sealing ring.
Further, the filter membrane is an organic filter membrane.
Furthermore, the limit end is provided with a tooth shape.
Furthermore, the outer wall of the sleeve is provided with anti-skid grains.
The utility model has the advantages and positive effects that:
1. due to the adoption of the organic filter membrane, impurities can be filtered from the sampled sample solvent, so that the needle head of the micro-syringe is prevented from being blocked by the impurities in the liquid, the normal operation of the micro-syringe is ensured, and the blockage of the micro-syringe caused by the blockage of the syringe is avoided.
2. Because the sealing ring is matched with the locking thread, the locking thread and the thread belt provide locking, the sealing ring can be tightly attached to the end part of the filtering end, the filtering membrane can not move and leak in the filtering process through the pressure of the sealing ring and the thread belt, and the filtering effect is ensured.
3. Due to the fact that the connecting port and the threads on the outer side are adopted, the connecting port can be matched with the threads to be connected with the injector at the threaded end on the outer side, negative pressure is generated through the injector to accelerate the filtering speed of the internal filter membrane, filtrate collection is completed quickly, then the micro-injector is used for collecting the filtrate, and detection work is completed.
4. The limit end is adopted to avoid the situation that the filter membrane is contacted with the bottom of the bottle due to the fact that the limit end is inserted too deeply in the process of filtering, so that sediments at the bottom of the bottle are prevented from being polluted and blocking the filter membrane, the tooth form is arranged on the limit end, liquid can smoothly pass through the tooth form, and the situation that the liquid circulation is not smooth due to the fact that the limit end is contacted with the bottom of the bottle is prevented from affecting the filtering efficiency of the liquid.
Drawings
FIG. 1 is a perspective view of the mounting body of the present invention;
FIG. 2 is a front view of the assembly of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 of the present invention;
FIG. 4 is a schematic view of a connector barrel of the present invention;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 4 of the present invention;
FIG. 6 is a schematic view of the locking barrel of the present invention;
fig. 7 is a cross-sectional view at B-B of fig. 6 of the present invention.
In the figure:
1. connecting cylinder 2, locking cylinder 3 and filter membrane
4. Connection port 5, connection end 6, threaded band
7. Filtering end 8, sleeve 9 and sealing ring
10. Limiting end 11, locking thread
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-7:
the utility model provides a VOC's filter equipment in survey soil, includes connecting cylinder 1 and locking cylinder 2, connecting cylinder 1 includes filter membrane 3, connection port 4, link 5, ribbon of thread 6, filter segment, connecting cylinder 1 is a hollow cylinder section of thick bamboo, and the tip of connecting cylinder 1 is link 5 and filter end 7 respectively, and the tip center of link 5 sets up connection port 4, the 4 outsides of connection port set up the screw thread, connecting cylinder 1 outer wall is hugged closely link 5 and is set up ribbon of thread 6, the tip of filter end 7 sets up filter membrane 3, the edge cladding of filter membrane 3 is in the filter end 7 outside, ribbon of thread 6 and the diameter of filter end 7 are less than link 5.
The locking cylinder 2 is a hollow cylinder, the inner diameter of the locking cylinder 2 is larger than the filtering end 7 and the threaded belt 6, the outer diameter of the locking cylinder 2 is the same as the connecting end 5, the locking cylinder 2 comprises a sleeve 8, a sealing ring 9 and a limiting end 10, a locking thread 11 is arranged on the inner wall of the sleeve 8, the length of the locking thread 11 is equal to that of the threaded belt 6, the locking thread 11 is matched with the threaded belt 6, the sealing ring 9 is clamped at the joint of the sleeve 8 and the limiting end 10, and the length of the sleeve 8 is equal to that of the threaded belt 6 plus the length of the filtering end 7.
The sealing ring 9 is a rubber sealing ring.
The filter membrane 3 is an organic filter membrane.
The limiting end 10 is provided with a tooth shape.
The outer wall of the sleeve 8 is provided with anti-skid grains.
The working process of the example is as follows:
when in use, the filter membrane 3 is placed at the end part of the filter end 7, the edge of the filter membrane 3 is bent along the filter end 7, then the locking cylinder 2 is sleeved outside the connecting cylinder 1 and is locked through the locking thread 11 and the threaded belt 6, the filter membrane 3 is tightly pressed through the sealing ring 9 to ensure that the filter membrane 3 is tightly attached to the filter end 7, so as to prevent liquid leakage, the connected filter device is inserted into a sample bottle, then the connecting port 4 is connected with a threaded syringe through the locking thread 11, the threaded syringe is used for forming negative pressure, so that the filtering speed inside the filter device is accelerated, the formation of filtrate is promoted, when the filtrate is enough, the threaded syringe is unscrewed, the needle head of the micro syringe is stretched into the filtrate through the connecting port 4 for extraction, the micro syringe is effectively prevented from being blocked due to impurities in the solution, and the threaded syringe is connected after the extraction is finished, and (3) pressing air in, pressing the filtrate in the filtering device out of the filtering device, taking out the filtering device after the filtrate is completely pressed out, and covering the sample bottle.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. The utility model provides a filter equipment of VOC in survey soil which characterized in that: the filter membrane locking device comprises a connecting cylinder (1) and a locking cylinder (2), wherein the connecting cylinder (1) comprises a filter membrane (3), a connecting port (4), a connecting end (5), a threaded belt (6) and a filter section (), the connecting cylinder (1) is a hollow cylindrical cylinder, the connecting end (5) and the filter end (7) are respectively arranged at the end part of the connecting cylinder (1), the connecting port (4) is arranged at the center of the end part of the connecting end (5), threads are arranged at the outer side of the connecting port (4), the threaded belt (6) is arranged on the outer wall of the connecting cylinder (1) and clings to the connecting end (5), the filter membrane (3) is arranged at the end part of the filter end (7), the edge of the filter membrane (3) is coated at the outer side of the filter end (7), and the diameters of the threaded belt (6) and the filter end (7) are smaller than that of the connecting end (5);
the locking cylinder (2) is a hollow cylinder, the inner diameter of the locking cylinder (2) is larger than the filtering end (7) and the threaded belt (6), the outer diameter of the locking cylinder (2) is the same as the connecting end (5), the locking cylinder (2) comprises a sleeve (8), a sealing ring (9) and a limiting end (10), a locking thread (11) is arranged on the inner wall of the sleeve (8), the length of the locking thread (11) is equal to that of the threaded belt (6), the locking thread (11) is matched with the threaded belt (6), the sealing ring (9) is clamped at the joint of the sleeve (8) and the limiting end (10), and the length of the sleeve (8) is equal to that of the threaded belt (6) and the length of the filtering end (7) is added.
2. The filter device for measuring VOC in soil as claimed in claim 1, wherein: the sealing ring (9) is a rubber sealing ring.
3. The filter device for measuring VOC in soil as claimed in claim 1, wherein: the filter membrane (3) adopts an organic filter membrane.
4. The filter device for measuring VOC in soil as claimed in claim 1, wherein: the limiting end (10) is provided with a tooth shape.
5. The filter device for measuring VOC in soil as claimed in claim 1, wherein: the outer wall of the sleeve (8) is provided with anti-slip lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122877420.6U CN216934871U (en) | 2021-11-23 | 2021-11-23 | Filtering device for measuring VOC in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122877420.6U CN216934871U (en) | 2021-11-23 | 2021-11-23 | Filtering device for measuring VOC in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216934871U true CN216934871U (en) | 2022-07-12 |
Family
ID=82304660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122877420.6U Expired - Fee Related CN216934871U (en) | 2021-11-23 | 2021-11-23 | Filtering device for measuring VOC in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216934871U (en) |
-
2021
- 2021-11-23 CN CN202122877420.6U patent/CN216934871U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20220712 |