CN104677695A - Improved portable sampler - Google Patents
Improved portable sampler Download PDFInfo
- Publication number
- CN104677695A CN104677695A CN201510068711.7A CN201510068711A CN104677695A CN 104677695 A CN104677695 A CN 104677695A CN 201510068711 A CN201510068711 A CN 201510068711A CN 104677695 A CN104677695 A CN 104677695A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- absorption
- sealing ring
- sleeve
- sample pipe
- 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.)
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Classifications
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2285—Details of probe structures
Abstract
The invention discloses an improved portable sampler. A sealing ring is arranged on the circumference of the outer end of a sample absorbing tube, and the sample absorbing tube is sleeved with a movable sealing ring which is located between a clamping step and the sealing ring; a spring extends between the movable sealing ring and the clamping step; a conical inclined plane is formed in the movable sealing ring; a first clamping part is arranged on a sleeve and a second clamping part is arranged on the sample absorbing tube. Therefore, the first clamping part and the second clamping part are released, the sleeve is pushed and pulled towards the other side, and further, a sample absorbing working area of the sample absorbing tube is exposed; the sample absorbing tube is pushed and pulled inwards the sleeve and the spring is compressed until the first clamping part and the second clamping part are buckled together, the sealing ring is compacted by the movable sealing ring under the elasticity of the spring and compacting and sealing are also achieved between the movable sealing ring and the sleeve under the resistance force of the sealing ring on the conical inclined plane towards the sleeve; therefore, the sampler disclosed by the invention is not only portable, but also is capable of effectively sealing the sample absorbing working area, so that the effectiveness of work and the stability of a sampling index can be guaranteed.
Description
Technical field
The present invention relates to sampling thief field, be specifically related to a kind of improved portable sampling thief.
Background technology
Sampling thief is a kind of usual means in order to gather atmospheric environment and plant site gas.It is widely used in occupational health spot sampling and test in laboratory, and the unit such as atmosphere environment supervision, health and epidemic prevention, labour protection, scientific research uses, and also can support the use with relevant instrument.By to sample gas analysis, to understand the degree that environment is polluted by harmful gas, and provide the actual conditions of pollution to competent departments concerned, to take some countermeasures, thus ensure that people have a healthy living environment.
Sampling thief includes pump sampling thief and without pump sampling thief, wherein strong with portability without pump sampling thief, flexible operation, the advantages such as volume is little two are applied more extensive, its structure roughly comprises interior pipe and is placed on the outer tube outside interior pipe, interior pipe is built with activated charcoal, interior pipe is laid with open-work, contact with air for activated charcoal and play a role, outer tube is as the switch of interior pipe, when not using, interior pipe box is lived by outer tube, prevent activated charcoal from contacting with air, but in actual use, because outer tube and interior pipe are movable contact, so often occur poorly sealed between outer tube and interior pipe, and the activated charcoal caused before use effect go down and even lost efficacy, or due to poorly sealed and occur that activated charcoal contacts with air again after absorption sample, and then occur that sampling is contaminated, index is unstable, have a strong impact on detected parameters, many troubles are caused to people, practicality has much room for improvement.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide a kind of there is portability while, also can effectively realize sampling absorbs the sealing of workspace, ensures work validity and sampling index stability, novel and reasonable structure, practical improved portable sampling thief.
In order to achieve the above object, the present invention adopts such technical scheme:
A kind of improved portable sampling thief, comprise absorption of sample pipe, and be placed on the sleeve outside absorption of sample pipe, described sleeve has blind end and openend, and described absorption of sample pipe is placed in described sleeve by described openend; The inner side face of described absorption of sample pipe is formed with snap ring, and the openend of described sleeve is formed with the locking step being stuck in and preventing the inner of described absorption of sample pipe from deviating from outside described snap ring; The outer end side face of described absorption of sample pipe is provided with sealing ring, described absorption of sample pipe box is provided with the loose gland be between described locking step and described sealing ring, open between described loose gland and described locking step and be provided with spring, described spring and described locking step and loose gland link together, and described loose gland is formed and is inwardly tapered by described openend and corresponding described sealing ring carries out the tapered slope that compresses; Described sleeve is also provided with the first card division in the outside of described locking step, and described absorption of sample pipe is also provided with the second card division be fastened togather that to match with described first card division in the outside of described sealing ring.
The xsect of above-mentioned tapered slope is indent camber line.
Above-mentioned first card division is the first buckle step of the openend being formed at above-mentioned sleeve, and the outer end of described first buckle step is formed inwardly tapered first to be taken advantage of a situation inclined-plane by openend; Above-mentioned absorption of sample pipe comprises the end cap that button is located at outer end, described end cap comprises the end face portion that is in end face and extends internally and have flexible week face, above-mentioned second card division comprises at least one and is formed at described all faces and the flexure strip extended internally, the corresponding described first buckle step of the free end of described flexure strip is formed with the second buckle step, and the inner of described second buckle step is formed and is inwardly tapered corresponding second the taking advantage of a situation inclined-plane in inclined-plane of taking advantage of a situation with described first by openend.
Two above-mentioned flexure strips are formed at the relative both sides of above-mentioned all faces.
Four above-mentioned flexure strips are uniformly distributed in above-mentioned all faces, and have gap between adjacent flexure strip.
The outside of above-mentioned flexure strip has the press section for pressing operation, and described press section is inwardly increased gradually by openend, and the dip plane of described press section is formed with anti-skidding striped.
The activated charcoal absorber that above-mentioned absorption of sample pipe comprises body, copper mesh layers from outside to inside successively and is installed in copper mesh layers; Described body is laid with open-work.
Above-mentioned tubular body has the inner cap be connected with above-mentioned end cap, and described inner cap is formed with the small diameter part be connected with the inner side of above-mentioned end face portion, has the space for above-mentioned flexure strip activity between the inner side of described small diameter part and above-mentioned all faces.
Above-mentioned inner cap and above-mentioned tubular body are linked together by threaded engagement, and described body is formed with internal thread, and described inner cap comprises the externally threaded extension being formed with coupling, and described extension is resisted against the end of above-mentioned copper mesh layers.
After adopting technique scheme, improved portable sampling thief of the present invention, break through the structural form of legacy sampler, in actual use, the first card division and the second card division are operated, make the two thread off, by sleeve to the push-and-pull of absorption of sample pipe opposite side, tapered slope and sealing ring are departed from until engage step and snap ring is stuck, the absorption of sample workspace of absorption of sample pipe is exposed, absorption collection is carried out to the sample at the places such as air, when not use or after collected specimens, by absorption of sample pipe to push-and-pull in sleeve, after the tapered slope of loose gland contacts with sealing ring, continue a bit of distance of push-and-pull again, make spring-compressed, until the first card division and the second card division are fastened togather, the elastic force of spring is utilized to make loose gland press seal ring, make sealing ring generation elastic deformation, tapered slope and sealing ring are closely pressed together, and sealing ring can support power to the oriented sleeve direction of tapered slope, make also to realize press seal between loose gland and sleeve, reach the effective sealing to absorption of sample workspace, ensure the validity of absorption of sample workspace before work, and the index stability after absorption sample, compared with prior art, improved portable sampling thief of the present invention, while it has portability, also can effectively realize sampling absorbs the sealing of workspace, ensures work validity and sampling index stability, novel and reasonable structure, practical.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention;
Fig. 2 is using state sectional structure schematic diagram of the present invention;
Fig. 3 is using state structural representation of the present invention.
In figure:
1-absorption of sample pipe 11-snap ring
12-sealing ring 13-second card division
131-flexure strip 1311-press section
132-second buckle step 1321-second takes advantage of a situation inclined-plane
14-end cap 141-end face portion
The all facial 15-bodys of 142-
151-open-work 152-inner cap
1521-small diameter part 1522-extension
16-copper mesh layers 17-activated charcoal absorber
2-sleeve 21-engages step
22-loose gland 221-tapered slope
23-spring 24-first card division
241-first takes advantage of a situation inclined-plane.
Embodiment
In order to explain technical scheme of the present invention further, be described in detail below by specific embodiment.
A modification of the present invention type Portable sampling device, as Figure 1-3, comprises absorption of sample pipe 1 and sleeve 2.
Sleeve 2 is placed on outside absorption of sample pipe 1, and sleeve 2 has blind end and openend, and absorption of sample pipe 1 is placed in sleeve 2 by described openend; The inner side face of absorption of sample pipe 1 is formed with snap ring 11, and the openend of sleeve 2 is formed with the locking step 21 being stuck in and preventing the inner of absorption of sample pipe 1 from deviating from outside snap ring 11; The outer end side face of absorption of sample pipe 1 is provided with sealing ring 12, absorption of sample pipe 1 is arranged with the loose gland 22 be between locking step 21 and sealing ring 12, open between loose gland 22 and locking step 21 and be provided with spring 23, spring 23 links together with locking step 21 and loose gland 22, and loose gland 22 is formed and is inwardly tapered by described openend and corresponding sealing ring 12 carries out the tapered slope 221 that compresses; Sleeve 2 is also provided with the first card division 24 in the outside of locking step 21, and absorption of sample pipe 1 is also provided with the second card division 13 be fastened togather that to match with the first card division 24 in the outside of sealing ring 12.The present invention in actual use, first card division 24 and the second card division 13 are operated, make the two thread off, by sleeve 2 to the push-and-pull of absorption of sample pipe 1 opposite side, tapered slope 221 and sealing ring 12 are departed from until engage step 21 and snap ring 11 is stuck, the absorption of sample workspace of absorption of sample pipe 1 is exposed, absorption collection is carried out to the sample at the places such as air, when not use or after collected specimens, by absorption of sample pipe 1 to push-and-pull in sleeve 2, after the tapered slope 221 of loose gland 22 contacts with sealing ring 12, continue a bit of distance of push-and-pull again, spring 23 is compressed, until the first card division 24 and the second card division 13 are fastened togather, the elastic force of spring 23 is utilized to make loose gland 22 press seal ring 12, make sealing ring 12 that elastic deformation occur, tapered slope 221 and sealing ring 12 are closely pressed together, and sealing ring 12 can support power to tapered slope 221 oriented sleeve 2 direction, make also to realize press seal between loose gland 22 and sleeve 2, reach the effective sealing to absorption of sample workspace, ensure the validity of absorption of sample workspace before work, and the index stability after absorption sample.
In order to increase the degree that cooperatively interacts of tapered slope 221 and sealing ring 12, enlarge active surface, and then strengthen sealing property, preferably, the xsect of tapered slope 221 is indent camber line.Namely tapered slope 221 and sealing ring 12 can form flexible compression relation.
In order to the buckle structure of specific implementation first card division 24 and the second card division 13, preferably, first card division 24 is for being formed at the first buckle step of the openend of sleeve 2, and the outer end of the first card division 24 of the first buckle stepped form is formed inwardly tapered first to be taken advantage of a situation inclined-plane 241 by openend; Absorption of sample pipe 1 comprises the end cap 14 that button is located at outer end, end cap 14 comprises the end face portion 141 that is in end face and extends internally and have flexible week face 142, second card division 13 comprises at least one and is formed at week facial 142 and the flexure strip 131 extended internally, the inner that first card division 24 of the corresponding first buckle stepped form of the free end of flexure strip 131 is formed with the second buckle step 132, second buckle step 132 is formed and is inwardly tapered corresponding second the taking advantage of a situation inclined-plane 1321 in inclined-plane 241 of taking advantage of a situation with first by openend.Like this, to take advantage of a situation cooperatively interacting of inclined-plane 1321 by the first inclined-plane 241 and second of taking advantage of a situation in the first card division 24 and the second card division 13, slip of taking advantage of a situation, relies on the deformation of flexure strip 131 that first card division 24 and the second card division 13 are fastened togather; Also undertaken being out of shape by pressing flexure strip 131 and threaded off in the first card division 24 and the second card division 13.Concrete structure can be, the height of the first card division 24 of the first buckle stepped form is designed, make the first card division 24 can not touch sealing ring 12 in sliding process, but ensure that the second buckle step 132 is higher than sealing ring 12, and the first card division 24 of the first buckle stepped form and the second buckle step 132 can be blocked mutually.
Balance the effect of buckle to reach the first card division 24 and the second card division 13, preferably, two flexure strips 131 are formed at the relative both sides of week face 142.
In order to strengthen effect and the buckle intensity of balance buckle further, preferably, four flexure strips 131 are uniformly distributed in week facial 142, and have gap between adjacent flexure strip 131.This gap can carry out mutual action for adjacent flexure strip 131 and can not interact.
For the ease of urging flexure strip 131 to operate, preferably, the outside of flexure strip 131 has the press section 1311 for pressing operation, and press section 1311 is inwardly increased gradually by openend, and the dip plane of press section 1311 is formed with anti-skidding striped.
In order to realize the concrete structure of absorption of sample pipe 1, preferably, the absorption of sample pipe 1 activated charcoal absorber 17 that comprises body 15, copper mesh layers 16 from outside to inside successively and be installed in copper mesh layers 16; Body 15 is laid with open-work 151.Open-work 151 altogether activated charcoal absorber 17 and extraneous contact and play the effect absorbing sample.
In order to realize the connection of end cap 14 and body 15, and work matching relationship, preferably, body 15 has the inner cap 152 be connected with end cap 14, and inner cap 152 is formed with the small diameter part 1521 be connected with the inner side of end face portion 141, small diameter part 1521 and week face 142 inner side between there is space for flexure strip 131 activity.So, by pressing flexure strip 131 utilize small diameter part 1521 and week face 142 inner side between space be out of shape, make the first card division 24 and the second card division 13 realize threading off.
Preferably, inner cap 152 and body 15 are linked together by threaded engagement, and body 15 is formed with internal thread, and inner cap 152 comprises the externally threaded extension 1522 being formed with coupling, and extension 1522 is resisted against the end of copper mesh layers 16.Like this, by inner cap 152, copper mesh layers 16 and activated charcoal absorber 17 are contained in body 15, and the rotatable screw connection structure by operation inner cap 152 and body 15 copper mesh layers 16 and activated charcoal absorber 17 are taken out carry out detecting and change after the operation such as again to load.
Improved portable sampling thief of the present invention, the concrete form of extension can carry out adjusting and designing according to actual requirement; The concrete form of small diameter part and small diameter part and week face inner side between the size, shape etc. in space all can carry out adjusting and designing according to actual requirement, say in a broad sense, the concrete form of inner cap also can carry out adjusting and designing according to actual requirement; The shape of open-work, size, quantity and distribution form etc. all can be carried out adjusting and designing according to actual requirement; The concrete form of body, copper mesh layers and activated charcoal absorber also can carry out adjusting and designing according to actual requirement; The concrete form of anti-skidding striped and the concrete form etc. of whole press section all can carry out adjusting and designing according to actual requirement; The concrete form of flexure strip, size, quantity and distribution form etc. all can be carried out adjusting and designing according to actual requirement; The concrete form of end cap and material etc. all can carry out choosing, adjust and designing according to actual requirement; The concrete form of tapered slope also can carry out adjusting and designing according to actual requirement; Loose gland is preferably elastomeric material, and its concrete form and material etc. all can carry out adjusting and designing according to actual requirement; The concrete form of spring can carry out adjusting and designing according to actual requirement; The form of absorption of sample pipe and sleeve entirety also can carry out adjusting and designing according to actual requirement.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present invention.
Claims (9)
1. an improved portable sampling thief, is characterized in that: comprise absorption of sample pipe, and is placed on the sleeve outside absorption of sample pipe, and described sleeve has blind end and openend, and described absorption of sample pipe is placed in described sleeve by described openend; The inner side face of described absorption of sample pipe is formed with snap ring, and the openend of described sleeve is formed with the locking step being stuck in and preventing the inner of described absorption of sample pipe from deviating from outside described snap ring; The outer end side face of described absorption of sample pipe is provided with sealing ring, described absorption of sample pipe box is provided with the loose gland be between described locking step and described sealing ring, open between described loose gland and described locking step and be provided with spring, described spring and described locking step and loose gland link together, and described loose gland is formed and is inwardly tapered by described openend and corresponding described sealing ring carries out the tapered slope that compresses; Described sleeve is also provided with the first card division in the outside of described locking step, and described absorption of sample pipe is also provided with the second card division be fastened togather that to match with described first card division in the outside of described sealing ring.
2. a kind of improved portable sampling thief according to claim 1, is characterized in that: the xsect of above-mentioned tapered slope is indent camber line.
3. a kind of improved portable sampling thief according to claim 2, it is characterized in that: above-mentioned first card division is the first buckle step of the openend being formed at above-mentioned sleeve, the outer end of described first buckle step is formed inwardly tapered first to be taken advantage of a situation inclined-plane by openend; Above-mentioned absorption of sample pipe comprises the end cap that button is located at outer end, described end cap comprises the end face portion that is in end face and extends internally and have flexible week face, above-mentioned second card division comprises at least one and is formed at described all faces and the flexure strip extended internally, the corresponding described first buckle step of the free end of described flexure strip is formed with the second buckle step, and the inner of described second buckle step is formed and is inwardly tapered corresponding second the taking advantage of a situation inclined-plane in inclined-plane of taking advantage of a situation with described first by openend.
4. a kind of improved portable sampling thief according to claim 3, is characterized in that: two above-mentioned flexure strips are formed at the relative both sides of above-mentioned all faces.
5. a kind of improved portable sampling thief according to claim 3, is characterized in that: four above-mentioned flexure strips are uniformly distributed in above-mentioned all faces, and have gap between adjacent flexure strip.
6. a kind of improved portable sampling thief according to claim 5, it is characterized in that: the outside of above-mentioned flexure strip has the press section for pressing operation, described press section is inwardly increased gradually by openend, and the dip plane of described press section is formed with anti-skidding striped.
7. a kind of improved portable sampling thief according to any one of claim 1-6, is characterized in that: the activated charcoal absorber that above-mentioned absorption of sample pipe comprises body, copper mesh layers from outside to inside successively and is installed in copper mesh layers; Described body is laid with open-work.
8. a kind of improved portable sampling thief according to claim 7, it is characterized in that: above-mentioned tubular body has the inner cap be connected with above-mentioned end cap, and described inner cap is formed with the small diameter part be connected with the inner side of above-mentioned end face portion, there is between the inner side of described small diameter part and above-mentioned all faces the space for above-mentioned flexure strip activity.
9. a kind of improved portable sampling thief according to claim 8, it is characterized in that: above-mentioned inner cap and above-mentioned tubular body are linked together by threaded engagement, described body is formed with internal thread, described inner cap comprises the externally threaded extension being formed with coupling, and described extension is resisted against the end of above-mentioned copper mesh layers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956820.7A CN106501030B (en) | 2015-02-10 | 2015-02-10 | A kind of sampler being convenient for carrying |
| CN201510068711.7A CN104677695B (en) | 2015-02-10 | 2015-02-10 | Improved portable sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068711.7A CN104677695B (en) | 2015-02-10 | 2015-02-10 | Improved portable sampler |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956820.7A Division CN106501030B (en) | 2015-02-10 | 2015-02-10 | A kind of sampler being convenient for carrying |
Publications (2)
| Publication Number | Publication Date |
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| CN104677695A true CN104677695A (en) | 2015-06-03 |
| CN104677695B CN104677695B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510068711.7A Active CN104677695B (en) | 2015-02-10 | 2015-02-10 | Improved portable sampler |
| CN201610956820.7A Active CN106501030B (en) | 2015-02-10 | 2015-02-10 | A kind of sampler being convenient for carrying |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956820.7A Active CN106501030B (en) | 2015-02-10 | 2015-02-10 | A kind of sampler being convenient for carrying |
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| CN (2) | CN104677695B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535397A (en) * | 2018-04-12 | 2018-09-14 | 福建拓普检测技术有限公司 | N-hexane concentration detection method in a kind of Work places |
| CN111562147A (en) * | 2018-04-12 | 2020-08-21 | 福建拓普检测技术有限公司 | Soil radon concentration detection device capable of improving detection accuracy |
| CN112255005A (en) * | 2020-09-27 | 2021-01-22 | 中国科学院空间应用工程与技术中心 | Radial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969934B (en) * | 2017-05-11 | 2020-04-14 | 中国人民解放军第三军医大学第三附属医院 | Stool sampler |
| CN109628286B (en) * | 2019-01-15 | 2022-01-07 | 泰普生物科学（中国）有限公司 | Transportation culture apparatus |
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| US5381699A (en) * | 1992-10-06 | 1995-01-17 | Health Research, Inc. | Radon collector and bubbler |
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| CN203849062U (en) * | 2014-05-22 | 2014-09-24 | 国家电网公司 | Combined smoke dust and flue gas sampling device |
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| GB2427687B (en) * | 2005-06-25 | 2009-12-09 | Sensam Ltd | Breath sampling device |
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| US5110558A (en) * | 1988-07-26 | 1992-05-05 | Romer Labs, Inc. | Apparatus for adsorption detection |
| US5381699A (en) * | 1992-10-06 | 1995-01-17 | Health Research, Inc. | Radon collector and bubbler |
| CN103515731A (en) * | 2012-06-18 | 2014-01-15 | 泰科电子日本合同会社 | Card connector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108535397A (en) * | 2018-04-12 | 2018-09-14 | 福建拓普检测技术有限公司 | N-hexane concentration detection method in a kind of Work places |
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| CN111562147A (en) * | 2018-04-12 | 2020-08-21 | 福建拓普检测技术有限公司 | Soil radon concentration detection device capable of improving detection accuracy |
| CN111562147B (en) * | 2018-04-12 | 2022-08-05 | 福建拓普检测技术有限公司 | Soil radon concentration detection device capable of improving detection accuracy |
| CN112255005A (en) * | 2020-09-27 | 2021-01-22 | 中国科学院空间应用工程与技术中心 | Radial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system |
| CN112255005B (en) * | 2020-09-27 | 2021-09-14 | 中国科学院空间应用工程与技术中心 | Radial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104677695B (en) | 2017-04-19 |
| CN106501030B (en) | 2018-09-21 |
| CN106501030A (en) | 2017-03-15 |
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Denomination of invention: Improved portable sampler Effective date of registration: 20200519 Granted publication date: 20170419 Pledgee: Agricultural Bank of China Limited Fuzhou Taijiang sub branch Pledgor: FUJIAN TUOPU DETECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020350000034 |
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