CN203299035U - Self-closing high negative-pressure type sampler - Google Patents
Self-closing high negative-pressure type sampler Download PDFInfo
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- CN203299035U CN203299035U CN2013203937500U CN201320393750U CN203299035U CN 203299035 U CN203299035 U CN 203299035U CN 2013203937500 U CN2013203937500 U CN 2013203937500U CN 201320393750 U CN201320393750 U CN 201320393750U CN 203299035 U CN203299035 U CN 203299035U
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- exhaust
- intake
- cylinder barrel
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- pressure type
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Abstract
A self-closing high negative-pressure type sampler comprises an intake and exhaust component, a piston, a piston rod, a cylinder barrel, an end cover, a breathing silencer and a handle. The intake and exhaust component is arranged at one end of the cylinder barrel, the end cover and the breathing silencer are arranged at the other end of the cylinder barrel, the breathing silencer is mounted on the end cover, the piston rod penetrates the end cover, one end of the piston rod is movably arranged inside the cylinder barrel and connected with the piston, and the handle is arranged at the other end of the piston rod. The self-closing high negative-pressure type sampler is simple in structure, reasonable in design, quite convenient to use and fast in sampling.
Description
Technical field
The utility model relates to a kind of air acquisition device, especially relates to a kind of self-closing high negative pressure type sampling thief.
Background technology
Under coal mine, the field such as metallurgy, chemical industry, coking, gas station, Tunnel Engineering, environmental protection and health and epidemic prevention department, need the dense gas sample of the multiple gases such as the airborne carbon monoxide of extraction and determination site environment, carbon dioxide, sulfuretted hydrogen, sulphuric dioxide, nitrogen dioxide, ammonia, oxygen, hydrogen.So that the assurance Safety of Coal Mine Production, the disasters such as prevention gas, harmful gas occur, and often need to use air sampler, the complicated inconvenience of using of traditional sampler structure, and also gathering speed is slow.
The utility model content
The purpose of this utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of self-closing high negative pressure type sampling thief is provided.
The utility model is the deficiency that solves the problems of the technologies described above, and the technical scheme that adopts is:
A kind of self-closing high negative pressure type sampling thief, comprise intake and exhaust assembly, piston, piston rod, cylinder barrel, end cap, breathing sound suppressor and handle, described intake and exhaust assembly is arranged on an end of cylinder barrel, the other end of cylinder barrel is provided with end cap and breathes sound suppressor, breathe sound suppressor and be arranged on end cap, described piston rod passes end cap, and the one end is movably arranged on cylinder barrel inside, and with piston, be connected, the other end is provided with handle.
Described intake and exhaust assembly comprises gas deflation assembly body, inlet suction port, exhaust joint, gas admittance valve and vent valve, described gas admittance valve and vent valve are arranged in the intake and exhaust component body, gas admittance valve and vent valve all with the cylinder barrel internal communication, it is outside that inlet suction port is arranged on the intake and exhaust component body, and with gas admittance valve, be communicated with, it is outside that exhaust joint is arranged on the intake and exhaust component body, and with vent valve, be communicated with.
Described inlet suction port is connected with filter for installation.
Described inlet suction port and exhaust joint are the one-way flow joint.
The beneficial effects of the utility model are: the utility model is simple in structure, and is reasonable in design, and it is extremely convenient to use, and sample rate is fast.
Description of drawings
Fig. 1 is structure diagram of the present utility model.
Graphical indicia: 1, intake and exhaust assembly; 101, inlet suction port; 102, gas admittance valve; 103, exhaust joint; 104, vent valve; 105, intake and exhaust component body; 2, piston; 3, piston rod; 4, cylinder barrel; 5, end cap; 6, breathe sound suppressor; 7, handle.
Embodiment
Shown in figure, embodiment is as follows:
A kind of self-closing high negative pressure type sampling thief, comprise intake and exhaust assembly 1, piston 2, piston rod 3, cylinder barrel 4, end cap 5, breathe sound suppressor 6 and handle 7, described intake and exhaust assembly 1 is arranged on an end of cylinder barrel 4, the other end of cylinder barrel 4 is provided with end cap 5 and breathes sound suppressor 6, breathe sound suppressor 6 and be arranged on end cap 5, described piston rod 3 passes end cap 5, and the one end is movably arranged on cylinder barrel 4 inside, and with piston 2, be connected, the other end is provided with handle 7.
Described intake and exhaust assembly 1 comprises gas deflation assembly body 105, inlet suction port 101, exhaust joint 103, gas admittance valve 102 and vent valve 104, described gas admittance valve 102 and vent valve 104 are arranged in intake and exhaust component body 105, gas admittance valve 102 and vent valve 104 all with cylinder barrel 4 internal communication, inlet suction port 101 is arranged on intake and exhaust component body 105 outsides, and with gas admittance valve 102, be communicated with, exhaust joint 103 is arranged on intake and exhaust component body 105 outsides, and with vent valve 104, is communicated with.
Described inlet suction port 101 is connected with filter for installation.
Described inlet suction port 101 and exhaust joint 103 are the one-way flow joint.
In specific operation process, piston 2, piston rod 3, cylinder barrel 4, end cap 5, breathing sound suppressor 6 and handle 7 are the power source main parts that extract or extrude the gas sample.Intake and exhaust assembly 1 is as changing gas sample flow direction, reaching the suction of controlling air-flow, the process of exhaust.Establish gas admittance valve 102 and vent valve 104 in intake and exhaust assembly 1, can control break gas sample flow direction.After inlet suction port 101, sampling that the sebific duct of sampling is connected to sampling thief store capsule and are connected to exhaust joint 103, holding handle 7 pulls piston rod 3 to drive piston 2 motions, pull back piston rod 3, make the interior generation negative pressure of cylinder barrel 4, twitch gas under the effect of atmospheric pressure, make gas through sampling sebific duct, inlet suction port 101 gas admittance valves 102, enter in cylinder barrel 4 and make its cylinder barrel 4 inside be full of the gas that is sampled, this moment, vent valve 104 was in closed condition.Then, hold handle 7 and make gas compressed to back pressure contracting piston rod 3 drive pistons 2, this moment, gas admittance valve 102 cut out, and vent valve 104 is opened, and gas enters sampling through vent valve 104, exhaust joint 103 and stores in capsule, completes sampling process one time.Once the volume of suction, exhaust process,, about the capacity of 150～250mL, be no more than 3～5 seconds sample time greatly.
, in the environment of sample drawn, need to connect filter for installations at inlet suction port 101 places in the too high situation of dust content.
The technical scheme that the utility model is cited and embodiment are not restrictions, with the cited technical scheme of the utility model and embodiment is equal to or the effect same approach all in the scope that the utility model is protected.
Claims (4)
1. self-closing high negative pressure type sampling thief, it is characterized in that: comprise intake and exhaust assembly (1), piston (2), piston rod (3), cylinder barrel (4), end cap (5), breathe sound suppressor (6) and handle (7), described intake and exhaust assembly (1) is arranged on an end of cylinder barrel (4), the other end of cylinder barrel (4) is provided with end cap (5) and breathes sound suppressor (6), breathing sound suppressor (6) is arranged on end cap (5), described piston rod (3) passes end cap (5), the one end is movably arranged on cylinder barrel (4) inside, and with piston (2), be connected, the other end is provided with handle (7).
2. a kind of self-closing high negative pressure type sampling thief according to claim 1, it is characterized in that: described intake and exhaust assembly (1) comprises gas deflation assembly body (105), inlet suction port (101), exhaust joint (103), gas admittance valve (102) and vent valve (104), described gas admittance valve (102) and vent valve (104) are arranged in intake and exhaust component body (105), gas admittance valve (102) and vent valve (104) all with cylinder barrel (4) internal communication, inlet suction port (101) is arranged on intake and exhaust component body (105) outside, and with gas admittance valve (102), be communicated with, exhaust joint (103) is arranged on intake and exhaust component body (105) outside, and with vent valve (104), be communicated with.
3. a kind of self-closing high negative pressure type sampling thief according to claim 2, it is characterized in that: described inlet suction port (101) is connected with filter for installation.
4. a kind of self-closing high negative pressure type sampling thief according to claim 2, it is characterized in that: described inlet suction port (101) and exhaust joint (103) are the one-way flow joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203937500U CN203299035U (en) | 2013-07-04 | 2013-07-04 | Self-closing high negative-pressure type sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203937500U CN203299035U (en) | 2013-07-04 | 2013-07-04 | Self-closing high negative-pressure type sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299035U true CN203299035U (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203937500U Expired - Fee Related CN203299035U (en) | 2013-07-04 | 2013-07-04 | Self-closing high negative-pressure type sampler |
Country Status (1)
| Country | Link |
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| CN (1) | CN203299035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389382A (en) * | 2017-08-31 | 2017-11-24 | 青岛多德多信息技术有限公司 | A kind of methane-generating pit piston self-closing sampler |
| CN108444752A (en) * | 2018-05-04 | 2018-08-24 | 浙江工业大学 | A kind of long-range underwater sediment(s) sampling apparatus of bank base and its method of sampling |
-
2013
- 2013-07-04 CN CN2013203937500U patent/CN203299035U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389382A (en) * | 2017-08-31 | 2017-11-24 | 青岛多德多信息技术有限公司 | A kind of methane-generating pit piston self-closing sampler |
| CN108444752A (en) * | 2018-05-04 | 2018-08-24 | 浙江工业大学 | A kind of long-range underwater sediment(s) sampling apparatus of bank base and its method of sampling |
| CN108444752B (en) * | 2018-05-04 | 2023-09-29 | 浙江工业大学 | Shore-based remote underwater sediment sampling device and sampling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Jian Inventor after: Zhang Baofa Inventor after: Li Zhen Inventor after: Yuan Xiaohong Inventor after: Zhou Jihui Inventor after: Zhang Guiyuan Inventor after: Wu Wenlong Inventor before: Sun Jian Inventor before: Zhang Baofa Inventor before: Li Zhen Inventor before: Yuan Xiaohong Inventor before: Zhou Jihui Inventor before: Zhang Guiyuan Inventor before: Wu Wenlong |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20200704 |
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| CF01 | Termination of patent right due to non-payment of annual fee |