CN108801671B - Sampler - Google Patents
Sampler Download PDFInfo
- Publication number
- CN108801671B CN108801671B CN201810483754.5A CN201810483754A CN108801671B CN 108801671 B CN108801671 B CN 108801671B CN 201810483754 A CN201810483754 A CN 201810483754A CN 108801671 B CN108801671 B CN 108801671B
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- Prior art keywords
- sampling tube
- piston
- sampling
- sample
- sample collection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of sampling equipment, and particularly relates to a sampler, which comprises a sample collection piston cylinder, a piston, a sampling part and an auxiliary sampling part; the piston comprises a piston top, a piston rod and a piston handle, and the piston top is inserted into the sample collection piston cylinder; an opening is formed in the top end of the sample collection piston cylinder; the sampling part comprises a first sampling tube and a second sampling tube, one end of the first sampling tube is communicated with an opening at the top end of the sample collecting piston cylinder and is fixed at the top end of the piston cylinder, and the other end of the first sampling tube is connected with the second sampling tube through threads; threads are arranged on the outer surface of the second sampling tube; the auxiliary sampling part comprises a sleeve and a rotary handle, one end of the sleeve is fixed on the rotary handle, the other end of the sleeve is provided with an internal thread matched with the external thread of the second sampling tube, and the inner diameter of the sleeve is the same as the outer diameter of the second sampling tube; the invention can be used for conveniently sampling the middle part of the sample and avoiding sample pollution.
Description
Technical Field
The invention belongs to the technical field of sampling equipment, and particularly relates to a sampler.
Background
The sampler is sampling equipment, and has great influence on the reliability of research results and the accuracy of detection results in the fields of research and development of gene technology and gene detection analysis. In DNA detection, samples are sampled, and the extracted samples are subjected to removal of upper and lower parts, leaving intermediate parts for investigation and detection. In the prior art, the sample is easy to pollute in the process of removing the upper part, the lower part and the middle part of the sample, and the reliability of research results and the accuracy of detection results are affected.
Disclosure of Invention
The invention solves the technical problems in the prior art and provides a sampler.
In order to solve the problems, the technical scheme of the invention is as follows:
a sampler comprises a sample collecting piston cylinder, a piston, a sampling part and an auxiliary sampling part;
the piston comprises a piston top, a piston rod and a piston handle, the piston top and the piston handle are respectively arranged at two ends of the piston rod, and the piston top is inserted into the sample collection piston cylinder;
an opening is formed in the top end of the sample collection piston cylinder;
the sampling part comprises a first sampling tube and a second sampling tube, and the inner diameter of the second sampling tube is the same as the outer diameter of the first sampling tube; one end of the first sampling tube is communicated with the opening at the top end of the sample collection piston cylinder and is fixed at the top end of the piston cylinder, and the other end of the first sampling tube is connected with the second sampling tube through threads; threads are arranged on the outer surface of the second sampling tube;
the auxiliary sampling part comprises a sleeve and a rotating handle, one end of the sleeve is fixed on the rotating handle, the other end of the sleeve is provided with an internal thread matched with the external thread of the second sampling tube, and the inner diameter of the sleeve is the same as the outer diameter of the second sampling tube.
As an improvement of the invention, a sample delivery tube is disposed near the top end of the sample collection plunger barrel. Facilitating solvent introduction or sample removal.
As an improvement of the invention, a piston rod fastening device is arranged at the bottom end of the sample collection piston cylinder. The piston rod is used for fixing the piston rod, and the piston rod is prevented from sliding or being touched carelessly in the using process.
As an improvement of the invention, a limiting ring is arranged at one end of the second sampling tube close to the first sampling tube. The sleeve is convenient to be matched with the second sampling tube.
As an improvement of the invention, the end of the second sampling tube far away from the first sampling tube is made of a metal sheet with the thickness of 0.02 mm. The sampling end of the second sampling tube is sharper and can sample more effectively.
The advantages of the present invention over the prior art are as follows,
the sampler can separate the first sampling tube from the second sampling tube through the auxiliary sampling part, so that the upper part and the lower part of a sample are removed under the condition of avoiding sample pollution, and the sample is sucked into the sample collecting piston cylinder in the middle part of the sample, thereby improving the reliability of research results and the accuracy of detection results.
Drawings
FIG. 1 is a schematic diagram of a sampler according to the present invention;
FIG. 2 is a schematic view of a piston rod fastening arrangement;
in the figure: 1 is the sample collection plunger barrel, 11 is the aperture, 12 is the sample delivery tube, 13 is the plunger rod fastening device, 14 is the sample collection plunger barrel top, 15 is the sample collection plunger barrel bottom, 2 is the plunger, 21 is the plunger crown, 22 is the plunger rod, 23 is the plunger handle, 3 is the sampling portion, 31 is the first sampling tube, 32 is the second sampling tube, 33 is the stop collar, 4 is the auxiliary sampling portion, 41 is the sleeve, 42 is the rotating handle.
Detailed Description
Example 1:
referring to fig. 1, a sampler comprises a sample collection plunger barrel 1, a plunger 2, a sampling portion 3 and an auxiliary sampling portion 4;
the piston 2 comprises a piston top 21, a piston rod 22 and a piston handle 23, the piston top 21 and the piston handle 23 are respectively arranged at two ends of the piston rod 22, and the piston top 21 is inserted into the sample collection piston cylinder 1;
the top end 14 of the sample collection piston cylinder is provided with an opening 11;
the sampling part 3 comprises a first sampling tube 31 and a second sampling tube 32, wherein the inner diameter of the second sampling tube 32 is the same as the outer diameter of the first sampling tube 31; one end of the first sampling tube 31 is communicated with the opening 11 at the top end 14 of the sample collection piston cylinder and is fixed at the top end 14 of the sample collection piston cylinder, and the other end of the first sampling tube is connected with the second sampling tube 32 through threads; the outer surface of the second sampling tube 32 is provided with threads;
the auxiliary sampling part 4 comprises a sleeve 41 and a rotary handle 42, one end of the sleeve 41 is fixed on the rotary handle 42, the other end is provided with an internal thread matched with the external thread of the second sampling tube 32, and the internal diameter of the sleeve 41 is the same as the external diameter of the second sampling tube 32.
Example 2:
referring to fig. 1, as an improvement of the present invention, a sample delivery tube 12 is provided near the top end 14 of the sample collection plunger barrel.
Example 3:
referring to fig. 1-2, as an improvement of the present invention, the sample collection plunger barrel bottom end 15 is provided with a plunger rod securing means 13.
Example 4:
referring to fig. 1, as a modification of the present invention, the second sampling tube 32 is provided with a stopper 33 at one end thereof adjacent to the first sampling tube 31.
Example 5:
referring to fig. 1, as a modification of the present invention, the end of the second sampling tube 32 remote from the first sampling tube 31 is made of a metal sheet having a thickness of 0.02 mm.
The application method of the sampler comprises the following steps:
during sampling, after the piston top 21 is pushed to the top end 14 of the sample collection piston cylinder, the piston handle 23 is pulled to draw out a small distance, so that the sample collection piston cylinder 1 enters a small amount of air, the second sampling tube 32 is pulled out after the second sampling tube 32 connected to the first sampling tube 31 pierces a fixed solid sample, the solid sample enters the second sampling tube 32, the piston handle 23 is pushed, a small amount of solid sample is exposed out of the second sampling tube 32, the sample exposed out of the second sampling tube 32 is removed, the piston handle 23 is pulled to draw out a certain distance, a part of the solid sample enters the first sampling tube 31, the auxiliary sampling part 4 is connected with the outer surface of the second sampling tube 32 through the internal thread of the sleeve 41, after screwing, the rotary handle 42 of the auxiliary sampling part 4 is rotated, the first sampling tube 31 is separated from the second sampling tube 32, the sample exposed out of the second sampling tube 32 at the moment and the sample in the first sampling tube 31 are removed, the first sampling tube 31 and the second sampling tube 32 are pulled out of the sample collection piston cylinder through the threaded connection, the sample is sucked into the sample collection piston cylinder 1 again, the sample is removed, the middle part of the sample is removed, the sample is achieved, the purpose of detecting result is achieved, the sample can be achieved, the detection result is not be improved, and the research result is achieved.
The present invention can also combine at least one of the technical features described in examples 2, 3, 4, 5 with example 1 to form a new embodiment.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalents or alternatives made on the basis of the above description are all included in the scope of the present invention.
Claims (3)
1. The sampler is characterized by comprising a sample collecting piston cylinder, a piston, a sampling part and an auxiliary sampling part;
the piston comprises a piston top, a piston rod and a piston handle, the piston top and the piston handle are respectively arranged at two ends of the piston rod, and the piston top is inserted into the sample collection piston cylinder;
an opening is formed in the top end of the sample collection piston cylinder;
the sampling part comprises a first sampling tube and a second sampling tube, and the inner diameter of the second sampling tube is the same as the outer diameter of the first sampling tube; one end of the first sampling tube is communicated with the opening at the top end of the sample collection piston cylinder and is fixed at the top end of the sample collection piston cylinder, and the other end of the first sampling tube is connected with the second sampling tube through threads; threads are arranged on the outer surface of the second sampling tube;
the auxiliary sampling part comprises a sleeve and a rotary handle, one end of the sleeve is fixed on the rotary handle, the other end of the sleeve is provided with an internal thread matched with the external thread of the second sampling tube, and the inner diameter of the sleeve is the same as the outer diameter of the second sampling tube;
a sample delivery tube is positioned near the top end of the sample collection piston cylinder;
and a piston rod fastening device is arranged at the bottom end of the sample collection piston cylinder.
2. The sampler of claim 1, wherein the second sampling tube is provided with a stop collar at an end thereof adjacent to the first sampling tube.
3. The sampler of claim 1, wherein the end of the second sampling tube remote from the first sampling tube is made of sheet metal having a thickness of 0.02 to mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483754.5A CN108801671B (en) | 2018-05-19 | 2018-05-19 | Sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483754.5A CN108801671B (en) | 2018-05-19 | 2018-05-19 | Sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801671A CN108801671A (en) | 2018-11-13 |
| CN108801671B true CN108801671B (en) | 2023-09-08 |
Family
ID=64091184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810483754.5A Active CN108801671B (en) | 2018-05-19 | 2018-05-19 | Sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801671B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02171635A (en) * | 1988-12-23 | 1990-07-03 | Ngk Insulators Ltd | Method and apparatus for sampling specimen for sludge moisture gauge |
| US6094999A (en) * | 1998-12-31 | 2000-08-01 | Dubois; Delevan Andrew | Rotatable batch sampler with wedge-shaped cone |
| WO2011125610A1 (en) * | 2010-03-31 | 2011-10-13 | 日本たばこ産業株式会社 | Aerosol particle sampling device |
| CN103439142A (en) * | 2013-09-09 | 2013-12-11 | 中国烟草总公司重庆市公司丰都分公司 | Stratified sampling device for soil |
| CN205107769U (en) * | 2015-10-30 | 2016-03-30 | 中国人民解放军第四军医大学 | Sampler for medical oncology |
| CN106442007A (en) * | 2016-10-14 | 2017-02-22 | 杭州序列网络科技有限公司 | Excrement sampling device |
| CN107894350A (en) * | 2017-11-18 | 2018-04-10 | 吕连勋 | One kind pollution long-term sampling equipment of place phreatic water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9480465B2 (en) * | 2014-01-06 | 2016-11-01 | Richard Hwang | Organism paracentesis device and method thereof |
-
2018
- 2018-05-19 CN CN201810483754.5A patent/CN108801671B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02171635A (en) * | 1988-12-23 | 1990-07-03 | Ngk Insulators Ltd | Method and apparatus for sampling specimen for sludge moisture gauge |
| US6094999A (en) * | 1998-12-31 | 2000-08-01 | Dubois; Delevan Andrew | Rotatable batch sampler with wedge-shaped cone |
| WO2011125610A1 (en) * | 2010-03-31 | 2011-10-13 | 日本たばこ産業株式会社 | Aerosol particle sampling device |
| CN103439142A (en) * | 2013-09-09 | 2013-12-11 | 中国烟草总公司重庆市公司丰都分公司 | Stratified sampling device for soil |
| CN205107769U (en) * | 2015-10-30 | 2016-03-30 | 中国人民解放军第四军医大学 | Sampler for medical oncology |
| CN106442007A (en) * | 2016-10-14 | 2017-02-22 | 杭州序列网络科技有限公司 | Excrement sampling device |
| CN107894350A (en) * | 2017-11-18 | 2018-04-10 | 吕连勋 | One kind pollution long-term sampling equipment of place phreatic water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801671A (en) | 2018-11-13 |
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