CN205323544U - Thin film filter - Google Patents
Thin film filter Download PDFInfo
- Publication number
- CN205323544U CN205323544U CN201620024926.9U CN201620024926U CN205323544U CN 205323544 U CN205323544 U CN 205323544U CN 201620024926 U CN201620024926 U CN 201620024926U CN 205323544 U CN205323544 U CN 205323544U
- Authority
- CN
- China
- Prior art keywords
- cup
- bowl cover
- glass holder
- membrane
- feed liquor
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of microorganism analytical equipment technique and specifically relates to a thin film filter, there is the bowl cover on the cup, connect tee bend feed liquor pipe and air vent on the bowl cover, the cover has the helmet on the air vent, the cover has the helmet on two holes that tee bend feed liquor guan buyu bowl cover is connected, from the top down installs three -layer filtration membrane in the cup, three -layer filtration membrane's aperture reduces in proper order, there is one deck filtration membrane to be located the bottom of cup among the three -layer filtration membrane, the outside that cup and cup meet the department respectively has the round protruding, the glass holder be one with cup, cup on protruding assorted have the ring of draw -in groove, the utility model discloses simple structure, reasonable in design uses tee bend feed liquor pipe, has improved the convenience of feed liquor, has improved feed liquor speed, has avoided external environment to cause the pollution to fungus liquid simultaneously, the design of air vent, the operator can be to filling in the cup intos inert gas such as nitrogen gas, the cleanliness factor of improvement cup internal environment.
Description
Technical field
This utility model relates to microbiological analysis device technical field, especially a kind of membrane filter。
Background technology
Membrane filter is that one utilizes microporous membrane filtration principle and the HTY matching used instrument of type Microbial Limit Filter Test Instrument, filter monarch and molecule can be crossed, be mainly used in the microorganism detection analysis to fields such as each quasi drugs, food, health product, drug packing materials。Traditional membrane filter is mainly made up of cup, glass holder and cup that by upper bottom, one connects successively, is provided with filter net sheet, is provided with respiratory organ and the feed liquor mouth of pipe in cup upper end, have hose in feed liquor mouth of pipe interpolation between glass holder and cup。
The existence of existing membrane filter adds bacterium inconvenient operation, and bacterium solution is easily subject to the pollution of external environment, affects the reliability of experimental data to a certain extent。
Summary of the invention
In order to solve the problems referred to above, the utility model discloses a kind of membrane filter, it has easy to operate, the membrane filter that will not bacterium solution be polluted in use procedure。
For reaching above-mentioned purpose, the technical solution adopted in the utility model is as follows:
A kind of membrane filter, including the glass holder of cup, cup and connection cup cup, described cup has bowl cover, connecting tee feed tube and passage on described bowl cover, described passage is cased with helmet, two holes that described threeway feed tube is not connected with bowl cover are cased with helmet；Being provided with three layer filtration film in described cup from top to bottom, the aperture of described three layer filtration film is sequentially reduced, and in described three layer filtration film, undermost filter membrane is positioned at the bottom of cup；It is protruding that the outside of described cup and cup joint is respectively arranged with a circle, and described glass holder is an annulus with draw-in groove matched with the projection on cup, cup。
Further, adopt threaded between described bowl cover and cup, inside described bowl cover, have the internal diameter size of the O-ring seal that a circle protrudes, the external diameter of described O-ring seal and cup to match。
Further, described glass holder is provided with disconnecting unit, and the two ends of described disconnecting unit are bolted, and has one layer of sealing gasket in the draw-in groove of described glass holder。
Further, described glass holder adopts polytetrafluoroethylmaterial material to make。
Further, described filter membrane adopts cellulose acetate membrane。
Further, the top of described cup is provided with aspirating hole, and described aspirating hole is connected with pump by vacuum tube。
The technical solution of the utility model is adopted to provide the benefit that:
1, this utility model uses threeway feed tube; improve the convenience of feed liquor; improve feed liquor speed; avoid external environment bacterium solution is polluted simultaneously; the design of helmet contributes to the environment in protection cup from outside contamination, the design of passage, and cup internal medium can be inflated processing by operator; the noble gases such as such as nitrogen, improve the cleanliness factor of cup internal medium；
2, this utility model is provided with three layer filtration film, during use, particulate matter or microorganism in bacterium solution are filtered on trilamellar membrane successively according to size, then filtrate is cultivated, if culture fluid entirety is muddy, then judge that test sample is against regulation, if the clarification of culture fluid entirety, then judge that test sample meets regulation；Adopt trilamellar membrane structure can avoid the particulate matter blocking to other retes, improve filter effect, improve the accuracy of experiment。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model。
Fig. 2 is annexation structural representation between cup of the present utility model, cup and glass holder。
In figure:
1 cup, 2 cups, 3 glass holders, 4 bowl covers, 5 threeway feed tubes, 6 passages, 7 filter membranes, 8 is protruding, 9 draw-in grooves, 10 sealing gaskets, 11 O-ring seals, 12 aspirating holes。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with this utility model, it should be understood that following detailed description of the invention is merely to illustrate this utility model rather than limits scope of the present utility model。It should be noted that the word "front", "rear" of middle use is described below, direction that "left", "right", "up" and "down" refer in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center。
As depicted in figs. 1 and 2, a kind of membrane filter, including cup 1, the glass holder 3 of cup 2 and connection cup cup, described cup 2 there is bowl cover 4, connecting tee feed tube 5 and passage 6 on described bowl cover 4, described passage 6 is cased with helmet, two holes that described threeway feed tube 5 is not connected with bowl cover 4 are cased with helmet, use threeway feed tube 5, improve the convenience of feed liquor, improve feed liquor speed, avoid external environment bacterium solution is polluted simultaneously, the design of helmet contribute to protection cup in 2 environment from outside contamination, the design of passage 6, internal being inflated of cup 2 can be processed by operator, the noble gases such as such as nitrogen, improve the cleanliness factor of cup 2 internal medium；In described cup 2, three layer filtration film 7 is installed from top to bottom, the aperture of described three layer filtration film 7 is sequentially reduced, in described three layer filtration film 7, undermost filter membrane 7 is positioned at the bottom of cup 2, during use, particulate matter or microorganism in bacterium solution are filtered on trilamellar membrane successively according to size, then filtrate are cultivated, if culture fluid entirety is muddy, then judge that test sample is against regulation, if the clarification of culture fluid entirety, then judge that test sample meets regulation；Adopt trilamellar membrane structure can avoid the particulate matter blocking to other retes, improve filter effect, improve the accuracy of experiment；The outside of described cup 1 and cup 2 joint is respectively arranged with a circle projection 8, and described glass holder 3 is an annulus with draw-in groove 9 matched with the projection 8 on cup 1, cup 2, adopts this structure, and the connection between cup 1, cup 2 and glass holder 3 is tightr, more firmly。
Preferably, adopting threaded between described bowl cover 4 and cup 2, have the O-ring seal 11 that a circle protrudes inside described bowl cover 4, the external diameter of described O-ring seal 11 and the internal diameter size of cup 2 match；Threaded, improve the being completely embedded property between bowl cover 4 and cup 2, after installation, the O-ring seal 11 protruded inside bowl cover 4 reaches in cup 2, further increase the connection sealing between bowl cover 4 and cup 2, avoid external environment that cup 2 internal medium is impacted, improve the accuracy of experimental data。
Preferably, described glass holder 3 is provided with disconnecting unit, and the two ends of described disconnecting unit are bolted, and has one layer of sealing gasket 10 in the draw-in groove 9 of described glass holder 3；Adopting this structure, the installation of glass holder 3 is more convenient, and efficiency is high, and it is convenient to change, and the design of sealing gasket 10 improves the sealing of installation, it is to avoid in cup, the environment of 2 is contaminated, and improves the accuracy of experimental data。
Preferably, described glass holder 3 adopts polytetrafluoroethylmaterial material to make；Adopt this structure, it is possible to extend the service life of glass holder 3, reduce use cost。
Preferably, described filter membrane 7 adopts cellulose acetate membrane；Adopting this structure, filter effect is more preferably, it is possible to improve the accuracy of experimental data。
Preferably, the top of described cup is provided with aspirating hole 12, and described aspirating hole 12 is connected with pump by vacuum tube, adopts architecture, and vacuum pump to carrying out vacuum pumping in cup, forms negative pressure, it is possible to improve the rate of filtration by aspirating hole 12 in cup
The above; it is only detailed description of the invention of the present utility model; protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should be encompassed within protection domain of the present utility model。Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim defines。
Claims (6)
1. a membrane filter, glass holder including cup, cup and connection cup cup, it is characterised in that: described cup has bowl cover, connecting tee feed tube and passage on described bowl cover, described passage is cased with helmet, two holes that described threeway feed tube is not connected with bowl cover are cased with helmet；Being provided with three layer filtration film in described cup from top to bottom, the aperture of described three layer filtration film is sequentially reduced, and in described three layer filtration film, undermost filter membrane is positioned at the bottom of cup；It is protruding that the outside of described cup and cup joint is respectively arranged with a circle, and described glass holder is an annulus with draw-in groove matched with the projection on cup, cup。
2. a kind of membrane filter according to claim 1, it is characterised in that: adopt threaded between described bowl cover and cup, inside described bowl cover, have the internal diameter size of the O-ring seal that a circle protrudes, the external diameter of described O-ring seal and cup to match。
3. a kind of membrane filter according to claim 1, it is characterised in that: described glass holder is provided with disconnecting unit, and the two ends of described disconnecting unit are bolted, and has one layer of sealing gasket in the draw-in groove of described glass holder。
4. a kind of membrane filter according to claim 1, it is characterised in that: described glass holder adopts polytetrafluoroethylmaterial material to make。
5. a kind of membrane filter according to claim 1, it is characterised in that: described filter membrane adopts cellulose acetate membrane。
6. a kind of membrane filter according to claim 1, it is characterised in that: the top of described cup is provided with aspirating hole, and described aspirating hole is connected with pump by vacuum tube。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024926.9U CN205323544U (en) | 2016-01-12 | 2016-01-12 | Thin film filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024926.9U CN205323544U (en) | 2016-01-12 | 2016-01-12 | Thin film filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205323544U true CN205323544U (en) | 2016-06-22 |
Family
ID=56209650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620024926.9U Expired - Fee Related CN205323544U (en) | 2016-01-12 | 2016-01-12 | Thin film filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205323544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348306A (en) * | 2017-08-17 | 2017-11-17 | 佛山泓乾生物科技有限公司 | A kind of multi-layer filtrating equipment for fruit drink equipment |
| CN108709327A (en) * | 2018-06-04 | 2018-10-26 | 芜湖市晨曦新型建材科技有限公司 | A kind of solar water heater inlet port with anti-blockage function |
-
2016
- 2016-01-12 CN CN201620024926.9U patent/CN205323544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348306A (en) * | 2017-08-17 | 2017-11-17 | 佛山泓乾生物科技有限公司 | A kind of multi-layer filtrating equipment for fruit drink equipment |
| CN108709327A (en) * | 2018-06-04 | 2018-10-26 | 芜湖市晨曦新型建材科技有限公司 | A kind of solar water heater inlet port with anti-blockage function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20220112 |