CN201488895U - Corrosion-resistant injector with long service life - Google Patents
Corrosion-resistant injector with long service life Download PDFInfo
- Publication number
- CN201488895U CN201488895U CN2009201572750U CN200920157275U CN201488895U CN 201488895 U CN201488895 U CN 201488895U CN 2009201572750 U CN2009201572750 U CN 2009201572750U CN 200920157275 U CN200920157275 U CN 200920157275U CN 201488895 U CN201488895 U CN 201488895U
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- syringe
- piston
- corrosion
- injector
- service life
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Abstract
The utility model relates to a corrosion-resistant injector with long service life, which comprises a syringe (1), a piston (7) and a push rod (3), and is characterized in that the push rod (3) is fixedly connected with the piston (7); the piston (7) comprises at least one cylindrical sealing surface (701) and at least one seal groove (702); a sealing ring (6) is installed in the seal groove (702); and the piston (7) slides in the syringe (1). Due to the special design of the structure, the contact between the sealing ring (6) and the solution inside the injector is greatly reduced, and the service life of the injector can be remarkably prolonged when the injector is used for the corrosive liquid.
Description
Technical field
The utility model relates to a kind of syringe, relates in particular to be used for that biochemical instruments, blood analyser tool are corrosion-resistant, the syringe of long life.
Background technology
Syringe is a critical component in biochemical instruments, the blood analyser, is used to realize the conveying of all ingredients liquid.
Fig. 1 is a kind of syringe construction wherein commonly used: comprise syringe (1), piston (2), and push rod (3).Wherein, syringe (1) generally adopts corrosion resistant quartz material, and piston (2) adopts the polytetrafluoroethylene (PTFE) material.In actual use, because the teflon material is too soft, is scratched easily and causes leakage.
Fig. 2 is another kind of syringe construction: comprise syringe (1), piston (5), and push rod (3).Wherein, piston (5) is processed with a groove on it, and a rubber seal (6) is housed, and relies on rubber seal (6) to realize sealing.In this structure, rubber seal is equivalent to have and is immersed in the solution of syringe inside (4) greatly, thereby has quickened the ageing failure of rubber seal and leakage.
The utility model content
The utility model provides a kind of simple in structure, good corrosion resistance and the syringe of long life more.
A kind of long-life, corrosion resistant syringe comprise syringe (1), and piston (7), and push rod (3) is characterized in that: described push rod (3) is fixedlyed connected with described piston (7); Described piston (7) comprises at least one column sealed (701) and at least one seal groove (702); O-ring seal (6) is housed in the described seal groove (702); Described piston (7) slides in described syringe (1).
Described syringe is characterized in that the diameter of described column sealed (701) of described piston (7) is equal to or greater than the internal diameter of described syringe (1).
Described syringe is characterized in that described syringe (1) adopts corrosion-resistant material processing, as stainless steel, quartz glass, corrosion resistant macromolecular material.
Described syringe is characterized in that described piston (7) adopts corrosion-resistant material processing, as stainless steel, quartz glass, corrosion resistant macromolecular material.
Described syringe is characterized in that described O-ring seal (6) adopts resilient material processing, as rubber, silica gel.
The utlity model has following advantage: the particular design of this structure has significantly reduced contacting of O-ring seal (6) and syringe internal corrosion solution, thereby can significantly improve the serviceable life of syringe when being used for corrosive liquids.
Description of drawings
Fig. 1 is existing a kind of syringe construction synoptic diagram.
Fig. 2 is existing another syringe construction synoptic diagram.
Fig. 3 is a piston configurations synoptic diagram of the present utility model.
Fig. 4 is an embodiment of the present utility model.
Embodiment
See also Fig. 3, Fig. 4.
In an embodiment of the present utility model, piston (7) adopts polytetrafluoroethylene (PTFE) to process, and its structure comprises as shown in Figure 3
One column sealed (701), its slightly larger in diameter is in the diameter of syringe (1);
A seal groove (702) is equipped with the O-ring seal (6) of fluororubber in the groove.
Syringe (1) adopting quartz glass processes, whole syringe construction as shown in Figure 4, syringe relies on column sealed (701) and O-ring seal (6) to realize two resealings, forms one section annular seal space (8) between the two.
Such benefit: even after sealing surface (701) has little scuffing, because the still old good sealing property of O-ring seal (6), the liquid that can not that is stored in syringe inside (4) enters annular seal space (8) in a large number and soaks O-ring seal (6), thereby with respect to the prior art of Fig. 2, increase the serviceable life of O-ring seal (6) greatly, thereby significantly improve the serviceable life of general injection device.
Above content is the further detailed description of the utility model being done in conjunction with concrete embodiment, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (5)
1. long-life, corrosion resistant syringe comprise syringe (1), and piston (7), and push rod (3) is characterized in that,
Described push rod (3) is fixedlyed connected with described piston (7);
Described piston (7) comprises at least one column sealed (701) and at least one seal groove (702);
O-ring seal (6) is housed in the described seal groove (702);
Described piston (7) slides in described syringe (1).
2. syringe according to claim 1 is characterized in that the diameter of described column sealed (701) of described piston (7) is equal to or greater than the internal diameter of described syringe (1).
3. syringe according to claim 1 and 2 is characterized in that described syringe (1) adopts corrosion-resistant material processing.
4. syringe according to claim 1 and 2 is characterized in that described piston (7) adopts corrosion-resistant material processing.
5. syringe according to claim 1 is characterized in that described O-ring seal (6) adopts resilient material processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201572750U CN201488895U (en) | 2009-05-26 | 2009-05-26 | Corrosion-resistant injector with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201572750U CN201488895U (en) | 2009-05-26 | 2009-05-26 | Corrosion-resistant injector with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488895U true CN201488895U (en) | 2010-05-26 |
Family
ID=42427768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201572750U Expired - Fee Related CN201488895U (en) | 2009-05-26 | 2009-05-26 | Corrosion-resistant injector with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095604A (en) * | 2010-11-12 | 2011-06-15 | 北京星达技术开发公司 | Self-absorption crude oil sampler of piston type |
| CN112896730A (en) * | 2020-12-25 | 2021-06-04 | 国网四川省电力公司电力科学研究院 | Insulating oil storage structure of oil chromatography online monitoring device, detection device and method |
-
2009
- 2009-05-26 CN CN2009201572750U patent/CN201488895U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095604A (en) * | 2010-11-12 | 2011-06-15 | 北京星达技术开发公司 | Self-absorption crude oil sampler of piston type |
| CN112896730A (en) * | 2020-12-25 | 2021-06-04 | 国网四川省电力公司电力科学研究院 | Insulating oil storage structure of oil chromatography online monitoring device, detection device and method |
| CN112896730B (en) * | 2020-12-25 | 2022-06-03 | 国网四川省电力公司电力科学研究院 | Insulating oil storage structure of oil chromatography online monitoring device, detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120526 |