CN202255952U - Miniature high-accuracy piston type sampling pump device - Google Patents
Miniature high-accuracy piston type sampling pump device Download PDFInfo
- Publication number
- CN202255952U CN202255952U CN2011203059032U CN201120305903U CN202255952U CN 202255952 U CN202255952 U CN 202255952U CN 2011203059032 U CN2011203059032 U CN 2011203059032U CN 201120305903 U CN201120305903 U CN 201120305903U CN 202255952 U CN202255952 U CN 202255952U
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- sampling pump
- piston
- guide plate
- miniature high
- piston type
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Abstract
The utility model discloses a miniature high-accuracy piston type sampling pump device, which is structurally characterized in that the upper end and the lower end of a sampling pump cylinder are respectively assembled through an upper sealing cover and a lower sealing cover in sealing mode and fixed with a main support through a bolt and a nut assembly, and the upper sealing cover is provided with a sample pipe interface. A piston is arranged in the sampling pump cylinder, and a sealing ring is installed between the top face of the piston and the inner wall of the sampling pump. A piston rod is fixed with a guide plate and a location plate through the nut assembly. A guide assembly is connected with a photoelectric element and composed of a linear guide rail and a sliding block installed on the guide plate, and the linear guide rail and the photoelectric element are all installed on the lateral wall of the main support. The miniature high-accuracy piston type sampling pump device can achieve constant pressure vacuum sampling and ensures constant flow speed of samples in online detection no matter pressure exists or not, sampling accuracy is high (error is smaller than 3%), liquid flow is free of pulsation, and rot resistance is good. The miniature high-accuracy piston type sampling pump device is suitable for detection of common hydraulic oil, red oil, phosphate hydraulic oil, organic solvent and water soluble liquid and ensures detection accuracy and reliability.
Description
Technical field
The utility model relates to the sampler in a kind of portable particle collector.
Background technology
Particle collector is the instrumentation that detects particulate matter pollutant load in the transparency liquid, is widely used in the detection of dustiness in hydraulic oil such as Aero-Space, machinery, chemical industry and the lubricating oil.Portable particle collector has two functions of the desk-top detection of online detection and laboratory, but the insider knows that all accuracy of detection and sample collecting method and acquisition quality are closely related.At present this quasi-instrument generally adopts the transport of gear-type pump as sample collecting, and during concrete online detection, sampling precision is also relevant with system pressure and sample viscosity.Especially for low-viscosity (mobile) liquid, such as to samplings such as the organic solvent and the WS, adopt the conveying of gear-type pump as sample collecting, sampling precision is lower and certain pulsating nature is arranged, and causes accuracy of detection to descend.A kind of collection transport that is applicable to low-viscosity (mobile) liquid can be provided, become the essential of particle collector, and this device must have anti-corrosive properties to hydraulic oil and organic solvent.The proposition of the utility model can scientifically address the above problem, and satisfies the high-precision needs that hydraulic oil, chilli oil, phosphate ester hydraulic fluid and organic solvent and water-soluble physical contamination detect in the industries such as Aeronautics and Astronautics, machinery, chemical industry.
Summary of the invention
The purpose of the utility model is, a kind of minitype piston formula sampler that is applied in the portable particle collector is provided, and can realize the low-viscosity (mobile) liquid high-precision sampling of sample of having a try.
Followingly describe with reference to the structural principle of accompanying drawing to the utility model.Miniature high-precision piston type controlled sampling pump apparatus has main support, sample hose interface, the upper and lower capping of sampling pump, O-ring seal, piston, sampling pump barrel, leading screw, screw assembly, stepper motor, guide plate, location-plate and photovalve etc.The utility model is achieved through following technical proposals.With upper cover and following capping sealing assembling, through bolt and main support fix respectively by upper cover for the upper and lower side of sampling pump barrel, and upper cover is provided with the sample hose interface.Be provided with piston in the sampling pump barrel, between piston-top surface and the sampling pump barrel inwall O-ring seal be housed.Piston is fixedly connected with guide plate through the screw assembly by piston rod, and guide plate and location-plate are fixed, and leading screw forms transmission with the screw that is installed on the guide plate.Guidance set is made up of with sliding line slideway soon, and line slideway is installed on the sidewall of mainframe, sliding being installed in soon on the guide plate, and photovalve is installed on the sidewall of location-plate top main support.
The principle of work of the utility model is, forms the sampling pump body by sampling pump barrel, piston and the upper and lower capping of sampling pump, fixes through bolt and screw assembly and main support; Form sampling pump positioning trip mechanism by guide plate, guidance set, stepper motor, leading screw, location-plate and photovalve, guide plate is as the web member of piston, stepper motor and location-plate.The location-plate that is fixed on the guide plate is a shadow shield, and the process of moving (waste liquid discharge) on the piston cooperates realization by photovalve and location-plate.Piston has top dead centre and lower dead center in sampling in the pump barrel, and the volume between two positions is the regulation sampling amount.When piston moves down operation (extracting liquid appearance) to lower dead center, by the switching-over of circuit control step motor.When piston by lower dead center (waste liquid discharge) when top dead centre moves, location-plate moves synchronously, the coboundary of location-plate (getting into the light district of photovalve) shading, this moment step motor stop.Because guidance set is made up of with sliding line slideway soon,, guide plate moves up and down so can sliding soon along the sidewall of main support very much.
The characteristics and the effect of the utility model are; No matter inlet has or not pressure in the time of can realizing the sampling of normal pressure vacuum, online detection, all guarantees the flow velocity that sample is constant, sampling precision high (error＜3%); The flow pulse free; Anti-corrosive properties are good, try out in normal hydraulic oil, chilli oil, phosphate ester hydraulic fluid and organic solvent and water miscible liquid and detect, and guarantee the precision and the reliability that detect.
Description of drawings
Shown in accompanying drawing be the structural principle sketch of the utility model.
Embodiment
In conjunction with accompanying drawing and through specific embodiment the structure of the utility model is done further explanation.Miniature high-precision piston type controlled sampling pump apparatus, its structure are formed: with upper cover 2 and following capping 3 sealing assemblings, upper cover is fixing through bolt and main support 4 respectively for the upper and lower side of sampling pump barrel 1, and upper cover is provided with sample hose interface 5.Be provided with piston 6 in the sampling pump barrel 1; Between piston-top surface and the sampling pump barrel inwall O-ring seal 7 is housed, between sampling pump barrel and the upper and lower capping O-ring seal 7 is housed also, for the convenience of installing and be convenient to replacing; O-ring seal 7 usefulness stainless steel keel support, as a sealing framework.Piston is fixedly connected with guide plate 9 through screw assembly 8 by piston rod, and guide plate and location-plate 10 are fixing, and leading screw 11 forms transmission with the screw 12 that is installed on the guide plate 9.Guidance set 13 is made up of with sliding line slideway soon, and line slideway is installed on the sidewall of mainframe 4, sliding being installed in soon on the guide plate 9.Photovalve 14 is installed on the sidewall of location-plate top main support 4.Form sampling pump positioning trip mechanism by guide plate 9, guidance set 13, stepper motor 15, leading screw 11, location-plate 10 and photovalve 14.
During work, the sample hose interface above the stopple coupon access sampling pump upper cover of particle collector is got final product, carry out sampling work according to detecting instruction.The positive and negative rotation of step motor shaft drives leading screw and does suitable, anticlockwise rotation, and leading screw drags the guide plate upper and lower displacement through the screw on the guide plate.Step motor shaft when counter-rotating guide plate moves downward, and guide plate drags piston rod and moves down through the sample hose interface and extract the article of picking up.The sample detection end-of-job, stepper motor switching-over is rotated, and makes on the piston rod movement be about to the sample waste liquid and releases.
Claims (5)
1. miniature high-precision piston type controlled sampling pump apparatus; Have main support, sample hose interface, the upper and lower capping of sampling pump, O-ring seal, piston, sampling pump barrel, leading screw, screw assembly, stepper motor, guide plate, location-plate and photovalve, it is characterized in that: the upper and lower side of sampling pump barrel (1) is used upper cover (2) and following capping (3) sealing assembling respectively, and upper cover is fixing through bolt and main support (4); Upper cover is provided with sample hose interface (5); Be provided with piston (6) in the sampling pump barrel (1), between piston-top surface and the sampling pump barrel inwall O-ring seal (7) be housed, piston is fixedly connected with guide plate (9) through screw assembly (8) by piston rod; Guide plate and location-plate (10) are fixing; Leading screw (11) forms transmission with the screw (12) that is installed on the guide plate (9), and guidance set (13) is made up of with sliding line slideway soon, and line slideway is installed on the sidewall of mainframe (4); Sliding being installed in soon on the guide plate (9), photovalve (14) is installed on the sidewall of location-plate top main support (4).
2. according to the described miniature high-precision piston type of claim 1 controlled sampling pump apparatus, it is characterized in that said leading screw (11) is driven by stepper motor (15).
3. according to claim 1 or 2 described miniature high-precision piston type controlled sampling pump apparatus, it is characterized in that forming sampling pump positioning trip mechanism by said guide plate (9), location-plate (10), leading screw (11), guidance set (13), photovalve (14) and stepper motor (15).
4. according to the described miniature high-precision piston type of claim 1 controlled sampling pump apparatus, it is characterized in that also being equipped with between said sampling pump barrel (1) and the upper and lower capping O-ring seal (7).
5. according to claim 1 or 4 described miniature high-precision piston type controlled sampling pump apparatus, it is characterized in that said O-ring seal (7) supports with the stainless steel keel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203059032U CN202255952U (en) | 2011-08-24 | 2011-08-24 | Miniature high-accuracy piston type sampling pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203059032U CN202255952U (en) | 2011-08-24 | 2011-08-24 | Miniature high-accuracy piston type sampling pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255952U true CN202255952U (en) | 2012-05-30 |
Family
ID=46117177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203059032U Withdrawn - After Issue CN202255952U (en) | 2011-08-24 | 2011-08-24 | Miniature high-accuracy piston type sampling pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484745A (en) * | 2015-08-13 | 2016-04-13 | 中国石油化工股份有限公司 | Suction type sampler |
| CN111051846A (en) * | 2017-09-05 | 2020-04-21 | 霍罗杰克股份有限公司 | Waste discharge apparatus for automated specimen preparation system |
-
2011
- 2011-08-24 CN CN2011203059032U patent/CN202255952U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484745A (en) * | 2015-08-13 | 2016-04-13 | 中国石油化工股份有限公司 | Suction type sampler |
| CN105484745B (en) * | 2015-08-13 | 2019-06-28 | 中国石油化工股份有限公司 | A kind of suction-type sampling device |
| CN111051846A (en) * | 2017-09-05 | 2020-04-21 | 霍罗杰克股份有限公司 | Waste discharge apparatus for automated specimen preparation system |
| US11768135B2 (en) | 2017-09-05 | 2023-09-26 | Hologic, Inc. | Waste evacuation apparatus for an automated specimen preparation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20210511 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20210511 |