CN102586082B - Filter head device for detecting microorganisms - Google Patents
Filter head device for detecting microorganisms Download PDFInfo
- Publication number
- CN102586082B CN102586082B CN 201210049295 CN201210049295A CN102586082B CN 102586082 B CN102586082 B CN 102586082B CN 201210049295 CN201210049295 CN 201210049295 CN 201210049295 A CN201210049295 A CN 201210049295A CN 102586082 B CN102586082 B CN 102586082B
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- Prior art keywords
- filtering head
- hole
- main body
- base
- head main
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/38—Caps; Covers; Plugs; Pouring means
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
- C12M37/02—Filters
Abstract
The invention relates to a filter head device for detecting microorganisms, which is applied to detecting the microorganisms in pharmaceutical industry, food and drinks industry, disease control industry, chemical industry and cosmetics industry. The filter head device consists of a filter head, a base and a base shaft, wherein the filter head is clamped on the base; the base shaft is inserted inthe centers of the base and the filter head; the filter head comprises a filter head main body, a pressure lever, a screw and a pressure lever spring; a through hole is lengthways arranged in the filter head main body; an upper hole and a side hole are respectively arranged in the filter head main body on the upper part and the side face of the through hole; and a switch device for controlling the connection and the closure of the upper hole and the side hole is arranged in the through hole. The filter head device for detecting the microorganisms has the advantages of adaptability for varioussterilization methods, wide application range, convenience in replacement of filter members, and accuracy in detection result.
Description
Technical field
The present invention relates to the filtering head device that a kind of biological detection is used, be applied to the microorganism detection in pharmaceutical industry, food beverage industry, disease control industry, chemical industry, the cosmetic industry.
Background technology
In existing technology, filtering head is fixed on the detecting instrument, can't dismantle, and can only adopt flame spray gun to the filtering head surface sterilization, yet many laboratories regulation can not be used naked light, has influenced its use range.After filtration is finished, be placed on the following meeting absorbed portion liquid of filtering head upper end filter membrane, influence cultivation and the counting of microorganism.Filtering head can not be dismantled and change, and can only be suitable for a kind of filter membrane of size.
Summary of the invention
Technical problem to be solved by this invention provides a kind of reasonable in design, can adapt to multiple sterilization method, use range is wide, change that filter membrane is convenient, the detected result filtering head device used of biological detection accurately.
It is the filtering head device that this biological detection is used that the present invention solves the problems of the technologies described above the technical scheme that adopts, its constructional feature is: be made up of filtering head, base, datum axle, described filtering head is stuck on the base, and described datum axle is inserted in the center of base and filtering head; Described filtering head is made up of filtering head main body, depression bar, screw, Pressure-bar spring, described depression bar is horizontally installed in the filtering head main body and by Pressure-bar spring and links to each other with the filtering head main body, described depression bar is located in the filtering head main body by screw, depression bar is provided with ring groove, and described datum axle is hollow and is provided with the base axial trough that matches with depression bar thereon; Be vertically arranged with through hole in the described filtering head main body, have hole and side opening on the filtering head main body of the top of described through hole and side, be provided with the switching arrangement of the last hole of control and side opening connection, closure in the described through hole.
So, just formed a seal channel under filtering cup inside and the base between the end interface, so the liquid in the filtering cup just can drain along passage, the setting of filtering head can be dismantled at any time, adopts various ways to sterilize.
As preferably, switching arrangement of the present invention is made up of movable axis, tightness system, spring, solenoid shaft and magnetic valve, described movable axis is arranged in the through hole, be provided with spring between described movable axis and the filtering head main body, described tightness system is arranged between hole and the side opening, described magnetic valve is arranged in the base, and described solenoid shaft is arranged on the top of magnetic valve and relative with the position of movable axis.After liquid exhausts into, the magnetic valve energising, axially going up of magnetic valve is mobile, withstanding movable axis simultaneously moves along direction D, last hole and side opening are communicated with, and the uncontaminated air on the super clean bench is drained through passage through last hole from side opening 14 again, simultaneously the liquid that adsorbs below the filter membrane 2 are taken away in this.After filtration is finished, be placed on filtering head upper end filter membrane following just can absorbed portion liquid, thereby avoided the cultivation of microorganism and the influence of counting.
As preferably, filtering head main body of the present invention is provided with pin-and-hole, and described base is provided with bearing pin, and described base links to each other with pin-and-hole by bearing pin with the filtering head main body.Further facilitated dismounting.
As preferably, be provided with sealing-ring between datum axle of the present invention and the filtering head main body.
As preferably, be provided with sealing-ring between movable axis of the present invention and the filtering head main body.
The resistance to air loss of filtration channel has been guaranteed in the setting of sealing-ring.
The present invention compares with prior art and has the following advantages and effect: 1, because filtering head can fast assembling-disassembling, therefore can adopt multiple mode to sterilize, improve the sterilization reliability, and avoided the restriction of Working environment, enlarge use range.2, the filtering head of different size can be installed on same the instrument, can satisfy the different size filter membrane.3, filtering head side aperture is introduced the uncontaminated air in the external world, and the liquid that filter membrane adsorbs is below taken away, and has reduced its influence to microorganism culturing and counting.
Description of drawings
One-piece construction synoptic diagram when Fig. 1 uses for the present invention.
Fig. 2 is the structural representation of movable axis of the present invention during not by jack-up.
Fig. 3 is the structural representation of movable axis of the present invention during by jack-up.
Fig. 4 is the sectional structure synoptic diagram of filtering head main body.
Fig. 5 is that the A-A of Fig. 4 is to structural representation.
Fig. 6 decomposition texture synoptic diagram of the present invention.
Fig. 7 is structural representation of the present invention.
Label declaration: filtering cup 1, filter membrane 2, back up pad 3, filtering head 4, microbial limit detecting instrument 5, through hole 6, filtering head main body 7, depression bar 8, base 9, seal channel 10, tightness system 11, last hole 12, side opening 14, movable axis 17, spring 18, solenoid shaft 19, magnetic valve 20, screw 21, Pressure-bar spring 22, ring groove 23, pin-and-hole 24, datum axle 25, bearing pin 26, base axial trough 27, base 28.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1: shown in Fig. 1 to 7, the filtering head device that the biological detection of present embodiment is used is made up of filtering head 4, datum axle 25, base 28 and switching arrangement.
Be respectively arranged with bearing pin 26 and pin-and-hole 24 on filtering head 4 and the base 28, filtering head 4 and base 28 interconnect by bearing pin 26 and pin-and-hole 24.Datum axle 25 is inserted in filtering head 4 and the base 28 and is provided with sealing-ring, and datum axle 25 is hollow, has base axial trough 27 on it.Filtering head 4 is made up of filtering head main body 7, depression bar 8, screw 21, Pressure-bar spring 22, depression bar 8 is horizontally installed in the filtering head main body 7, one end of depression bar 8 links to each other with Pressure-bar spring 22, and Pressure-bar spring 22 links to each other with filtering head main body 7, depression bar 8 is located in filtering head main body 7 by screw 21, and depression bar 8 is provided with ring groove 23.
Be vertically arranged with through hole in the filtering head main body 7, have hole 12 and side opening 14 on the filtering head main body 7 of the top of through hole and side, movable axis 17 is arranged in the through hole, be provided with spring 18 between described movable axis 17 and the filtering head main body 7, tightness system 11 is arranged between hole 12 and the side opening 14, magnetic valve 20 is arranged in the base 28, and described solenoid shaft 19 is arranged on the top of magnetic valve 20 and relative with the position of movable axis 17.Be provided with sealing-ring between movable axis 17 and the filtering head main body 7.
The filtering head device that biological detection of the present invention is used and microbial limit detecting instrument 5, filtering cup 1, filter membrane 2, back up pad 3 are formed a complete microorganism detection system.
Wherein, back up pad 1, filter membrane 2 are placed on the upper end of filtering head 4, filtering cup 1 is pushed down filter membrane 2, and be stuck on the filtering head 4 by self structure, prevent the leakage of leaking gas with combining closely around the filtering head 4, so just formed a path 10, i.e. liquid in the seal channel 10 between 9 times end interfaces of filtering cup 1 inside and base, so filtering cup 1 just can be drained (see figure 2) along path 10.
When the liquid suction filtration of 5 pairs of filtering cups 1 of microbial limit detecting instrument, because the sealing function of tightness system 11, the last hole 12 of filtering head 4 upper ends and the side opening 14 of side are not communicated with, and liquid is drained (see figure 2) along path 10.After liquid exhausts into, magnetic valve 20 energisings, the axle 19 of magnetic valve moves up, withstanding movable axis 17 simultaneously moves along direction D, last hole 12 and side opening 14 are communicated with, uncontaminated air on the super clean bench is drained (see figure 3) through path 10 from side opening 14 again through last hole 12, simultaneously the liquid that adsorbs below the filter membrane 2 is taken away in this.After the liquid of absorption is pulled away, magnetic valve 20 outage, axle 19 withdrawals of magnetic valve, movable axis 17 moved down in the effect of spring 18 and got back to the zero position (see figure 2) this moment, and the passage between last hole 12 and the side opening 14 is disconnected.
The dismounting of filtering head: when filtering head 4 is installed depression bar 8 is pressed onto the end, by screw 21 spacing (see figure 5)s, the ring groove of depression bar 8 is kept away 23 and is opened datum axle 25(and see Fig. 6), therefore filtering head 4 can be enclosed within on the datum axle 25.Unclamp depression bar 8 after installing, be stuck in the ring groove 23 of datum axle 25 at the effect down-pressed pole 8 of spring 22 this moment, and the bearing pin 26 on the base is filled in the pin-and-hole 24 of filtering head simultaneously, so filtering head 4 can not move up and down and can not rotate, and the position is completely fixed.When pulling down filtering head 4 depression bar 8 is pressed onto the end, filtering head 4 is upwards pulled up gets final product.
In addition, need to prove, the specific embodiment described in this specification sheets, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done according to patent of the present invention, be included in the protection domain of patent of the present invention.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (4)
1. filtering head device that biological detection is used, it is characterized in that: be made up of filtering head, base, datum axle, described filtering head is stuck on the base, and described datum axle is inserted in the center of base and filtering head; Described filtering head is made up of filtering head main body, depression bar, screw, Pressure-bar spring, described depression bar is horizontally installed in the filtering head main body and by Pressure-bar spring and links to each other with the filtering head main body, described depression bar is located in the filtering head main body by screw, depression bar is provided with ring groove, and described datum axle is hollow and is provided with the base axial trough that matches with depression bar thereon; Be vertically arranged with through hole in the described filtering head main body, have hole and side opening on the filtering head main body of the top of described through hole and side, be provided with the switching arrangement of the last hole of control and side opening connection, closure in the described through hole; Described switching arrangement is made up of movable axis, tightness system, spring, solenoid shaft and magnetic valve, described movable axis is arranged in the through hole, be provided with spring between described movable axis and the filtering head main body, described tightness system is arranged between hole and the side opening, described magnetic valve is arranged in the base, and described solenoid shaft is arranged on the top of magnetic valve and relative with the position of movable axis.
2. the filtering head device used of biological detection according to claim 1, it is characterized in that: described filtering head main body is provided with pin-and-hole, and described base is provided with bearing pin, and described base links to each other with pin-and-hole by bearing pin with the filtering head main body.
3. the filtering head device used of biological detection according to claim 1 is characterized in that: be provided with sealing-ring between described datum axle and the filtering head main body.
4. the filtering head device used of biological detection according to claim 1 is characterized in that: be provided with sealing-ring between described movable axis and the filtering head main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210049295 CN102586082B (en) | 2012-02-29 | 2012-02-29 | Filter head device for detecting microorganisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210049295 CN102586082B (en) | 2012-02-29 | 2012-02-29 | Filter head device for detecting microorganisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102586082A CN102586082A (en) | 2012-07-18 |
| CN102586082B true CN102586082B (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210049295 Active CN102586082B (en) | 2012-02-29 | 2012-02-29 | Filter head device for detecting microorganisms |
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| CN (1) | CN102586082B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287099A (en) * | 2016-04-11 | 2017-10-24 | 杭州盈天科学仪器有限公司 | Microbial limit filter |
| DE102017127969B3 (en) | 2017-11-27 | 2019-01-17 | Sartorius Stedim Biotech Gmbh | Connecting device for a suction device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1320967B1 (en) * | 2000-03-31 | 2003-12-18 | Gd Spa | SEPARATOR DRUM FOR AXIAL SPACING OF TWO CIGARETTE BITS BETWEEN THEIR COAXIALS IN A FILTER FEEDER MACHINE. |
| CN101104122B (en) * | 2006-07-12 | 2011-03-23 | 刘勇 | Flow field special-purpose fast filter |
| CN101085977B (en) * | 2007-06-27 | 2011-05-25 | 叶大林 | Microbe limit filter |
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| CN102586082A (en) | 2012-07-18 |
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