CN106932244A - A kind of buffer of the big flow ram for air sampling - Google Patents
A kind of buffer of the big flow ram for air sampling Download PDFInfo
- Publication number
- CN106932244A CN106932244A CN201710266097.4A CN201710266097A CN106932244A CN 106932244 A CN106932244 A CN 106932244A CN 201710266097 A CN201710266097 A CN 201710266097A CN 106932244 A CN106932244 A CN 106932244A
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- China
- Prior art keywords
- end cap
- half end
- ram
- inner tray
- buffer
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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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (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 present invention is intended to provide a kind of buffer of big flow ram for air sampling, reach the effect of the stability for increasing ram in sampling process, include housing, half end cap, inner tray, circle ball and spring, housing upper is provided with cushion chamber, the diameter of lower housing portion is less than top and external threading, half end cap, inner tray, circle ball and spring may be contained within the cushion chamber of housing, inner tray is arranged at the bottom in cavity, spring is arranged between inner tray and buffering bottom of chamber face and is connected respectively with both, half end cap is arranged at the top in cavity, ball is arranged between inner tray and half end cap, the upper end of half end cap is provided with opening, expose from half end cap upper end open on the rounded portion ground.After buffer is installed on into the big flow ram for air sampling, the stability of ram in sampling process can be increased, it is to avoid sampling ware of the ram inside without locking device shakes in sampling process, it is ensured that sample effect.
Description
Technical field
The invention belongs to air sampling technical field, and in particular to a kind of buffer of impact sampler.
Background technology
In air sampling field, conventional is that a kind of impacting type is sampled, the gas outlet connection of air extractor and ram,
Air enters ram from the air inlet of ram, is arranged at every grade of sampling ware classification clashed into after disk and collects sampled targets.Cause
For sampling ware needs to avoid being subject to air pollution in installation process, so the mounting structure of sampling ware is very simple, it is not provided with
Locking mechanism, therefore during sampling, ram stability in itself influences whether the effect of sampling.
In the prior art, ram is fixed generally by tripod.Connection between tripod and buffer
Mode is usually single-point connection or plane connection, it is difficult to be completely counterbalanced by the vibrations of air extractor or airflow counter-collision in sampling process
Hit the influence of the stability of device sampling ware.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of buffering of the big flow ram for air sampling
Device, reaches the effect of the stability for increasing ram in sampling process.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：One kind is used for air sampling
Big flow ram buffer, include housing, half end cap, inner tray, circle ball and spring, the housing for rotation
Part, the top of housing is provided with cushion chamber, and the diameter of lower housing portion is less than top and external threading, half end cap, internal support
Disk, circle ball and spring may be contained within the cushion chamber of housing, and the inner tray is arranged at the bottom in cavity, and the spring sets
It is placed between inner tray and buffering bottom of chamber face and is connected respectively with both, half end cap is arranged at the top in cavity, half
It is interference fit between end cap and cavity, the ball is arranged between inner tray and half end cap, the upper end of half end cap
Opening is provided with, the rounded portion ground exposes from half end cap upper end open.
Further, half cover internal is provided with the part-spherical cavity being engaged with ball, the upper table of the inner tray
Face central area is provided with a concave surface being engaged with ball.
Further, the cavity wall of half end cap extends downward the bottom of cushion chamber, and the external diameter of the inner tray is little
In the internal diameter of half end cap.
Further, the spring is fixed on the bottom surface of cushion chamber by glue.
The present invention is advantageous in that, after buffer is installed on into the big flow ram for air sampling, can increase
Plus in sampling process ram stability, it is to avoid ram inside the sampling ware without locking device occur in sampling process
Rock, it is ensured that sample effect.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is stereogram of the invention；
Fig. 2 is sectional view of the invention；
Fig. 3 is explosive view of the invention.
In figure：1st, housing；2nd, half end cap；3rd, inner tray；4th, ball；5th, spring；6th, cushion chamber.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be described in detail：
As shown in figure 3, the present apparatus includes housing 1, half end cap 2, inner tray 3, ball 4 and spring 5, housing 1 is revolving part, shell
The top of body 1 is provided with cushion chamber 6.
As shown in Fig. 2 the diameter of the bottom of housing 1 is less than top and is externally threaded, half end cap 2, inner tray 3, circle
Ball 4 and spring 5 are all installed in the cushion chamber 6 on the top of housing 1.Spring 5 is bonded on the bottom surface of cushion chamber 6 by glue, internal
Pallet 3 is arranged on the bottom of cushion chamber 6 and is contacted with spring 5.With reference to Fig. 3 as can be seen that the upper face center portion of inner tray 3
Set up the concave surface for being equipped with and being engaged with ball 4 separately.Half end cap 2 is fixedly installed in the top of cushion chamber 6 and was between cushion chamber 6
It is full of cooperation, the cavity wall of half end cap 2 extends downward the bottom of cushion chamber 6, and the internal diameter of half end cap 2 is outer not less than inner tray 3
Footpath.With reference to Fig. 3 as can be seen that half end cap 2 is provided with a cavity for part-spherical.Ball 4 is arranged at half end cap 2 and internal support
Between disk 3, it is possible to moved freely through in space therebetween.The top of half end cap 2 is provided with opening, and ball 4 is partly
Expose from the opening.
After present apparatus installation as shown in Figure 1.
During installation, buffer is installed on the end cap of ram by the screw thread attaching nut of the bottom of housing 1, buffer
Ball 4 be in contact with ram fixing device.
In sampling process, when due to air extractor, flow perturbation or other reasonses cause ram to shake when, buffering
The ball 4 of device is further contacted with ram fixing device, and ball 4 oppresses inner tray 3 to being moved inside cushion chamber 6, internal
Pallet 3 is moved under the pressure of ball 4 to the bottom of cushion chamber 6, pressuring spring 5.Impulsive force is stored as elastic potential energy by spring 5,
So as to reduce ram shaking amplitude, increase stability of the ram in sampling process.
The ball 4 of buffer can also be freely rotatable in the space between half end cap 2 and inner tray 3, receive outer
The masterpiece used time can more gently rotate in ram fixing device, increase the stability of ram.
It is emphasized that：The above is only presently preferred embodiments of the present invention, not make any formal to the present invention
Limitation, every any simple modification, equivalent variations and modification made to above example according to technical spirit of the invention,
Still fall within the range of technical solution of the present invention.
Claims (4)
1. the buffer of a kind of big flow ram for air sampling, it is characterised in that：Include housing, half end cap, interior
Portion's pallet, circle ball and spring, the housing is revolving part, and the top of housing is provided with cushion chamber, and the diameter of lower housing portion is less than
Top and external threading, half end cap, inner tray, circle ball and spring may be contained within the cushion chamber of housing, the inside
Pallet is arranged at the bottom in cavity, and the spring is arranged between inner tray and buffering bottom of chamber face and connects respectively with both
Connect, half end cap is arranged at the top in cavity, be interference fit between half end cap and cavity, the ball is arranged inside
Between pallet and half end cap, the upper end of half end cap is provided with opening, and the rounded portion ground reveals from half end cap upper end open
Go out.
2. the buffer of the big flow ram for air sampling according to claim 1, it is characterised in that：Described half
Cover internal is provided with the part-spherical cavity being engaged with ball, and the upper surface central area of the inner tray is provided with one
The concave surface being engaged with ball.
3. the buffer of the big flow ram for air sampling according to claim 2, it is characterised in that：Described half
The cavity wall of end cap extends downward the bottom of cushion chamber, and the external diameter of the inner tray is not more than the internal diameter of half end cap.
4. the buffer of the big flow ram for air sampling according to claim 1, it is characterised in that：The bullet
Spring is fixed on the bottom surface of cushion chamber by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266097.4A CN106932244B (en) | 2017-04-21 | 2017-04-21 | Buffer of large-flow impactor for air sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266097.4A CN106932244B (en) | 2017-04-21 | 2017-04-21 | Buffer of large-flow impactor for air sampling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106932244A true CN106932244A (en) | 2017-07-07 |
| CN106932244B CN106932244B (en) | 2023-04-18 |
Family
ID=59438318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710266097.4A Active CN106932244B (en) | 2017-04-21 | 2017-04-21 | Buffer of large-flow impactor for air sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106932244B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591464A (en) * | 2020-03-31 | 2020-08-28 | 上海卫星工程研究所 | Deep space impactor and impact protection performance evaluation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796475A (en) * | 1987-06-25 | 1989-01-10 | Regents Of The University Of Minnesota | Personal air sampling impactor |
| CN102419272A (en) * | 2011-08-17 | 2012-04-18 | 上海烟草集团有限责任公司 | Particle size grading acquisition method of cigarette mainstream smoke aerosol |
| CN104135108A (en) * | 2014-08-01 | 2014-11-05 | 北京航空航天大学 | Electric cylinder with buffer |
| CN204999906U (en) * | 2015-09-16 | 2016-01-27 | 杭州亿捷科技有限公司 | Air microorganism sampler |
| CN105565109A (en) * | 2015-12-28 | 2016-05-11 | 太原理工大学 | Combined type elevator buffer and working method thereof |
| CN205679445U (en) * | 2016-06-23 | 2016-11-09 | 南安市科体机械科技有限公司 | A kind of remote-controlled air sampler |
| CN206756539U (en) * | 2017-04-21 | 2017-12-15 | 苏州尚科洁净技术有限公司 | Buffer for the big flow ram of air sampling |
| CN214193238U (en) * | 2020-11-30 | 2021-09-14 | 华侨大学 | Impactor and microorganism sampler |
-
2017
- 2017-04-21 CN CN201710266097.4A patent/CN106932244B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796475A (en) * | 1987-06-25 | 1989-01-10 | Regents Of The University Of Minnesota | Personal air sampling impactor |
| CN102419272A (en) * | 2011-08-17 | 2012-04-18 | 上海烟草集团有限责任公司 | Particle size grading acquisition method of cigarette mainstream smoke aerosol |
| CN104135108A (en) * | 2014-08-01 | 2014-11-05 | 北京航空航天大学 | Electric cylinder with buffer |
| CN204999906U (en) * | 2015-09-16 | 2016-01-27 | 杭州亿捷科技有限公司 | Air microorganism sampler |
| CN105565109A (en) * | 2015-12-28 | 2016-05-11 | 太原理工大学 | Combined type elevator buffer and working method thereof |
| CN205679445U (en) * | 2016-06-23 | 2016-11-09 | 南安市科体机械科技有限公司 | A kind of remote-controlled air sampler |
| CN206756539U (en) * | 2017-04-21 | 2017-12-15 | 苏州尚科洁净技术有限公司 | Buffer for the big flow ram of air sampling |
| CN214193238U (en) * | 2020-11-30 | 2021-09-14 | 华侨大学 | Impactor and microorganism sampler |
Non-Patent Citations (1)
| Title |
|---|
| 李娜;鹿建春;李劲松;何春雷;王洁;温占波;: "一种多功能空气微生物采样箱的研制" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591464A (en) * | 2020-03-31 | 2020-08-28 | 上海卫星工程研究所 | Deep space impactor and impact protection performance evaluation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106932244B (en) | 2023-04-18 |
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