CN218026107U

CN218026107U - Microbial limit detector

Info

Publication number: CN218026107U
Application number: CN202221904976.8U
Authority: CN
Inventors: 储团结
Original assignee: Pharmaceutical Guoxin Zhejiang Quality Technology Co ltd
Current assignee: Pharmaceutical Guoxin Zhejiang Quality Technology Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-13
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a microorganism limit detects technical field, discloses a microorganism limit detector, the utility model discloses a stainless steel collecting tube, homogeneity cup, waste liquid collection cup, pipette, pump, aseptic filter membrane, wherein the connected mode between waste liquid collection cup, pipette, pump, the stainless steel collecting tube is unanimous with prior art, still include filter screen cup, filter screen cup down, go up the clamping ring, clamping ring down, tear cup magnetism and inhale the ring, and the upper end of going up filter screen cup can be dismantled with the lower extreme of homogeneity cup and be connected, and the lower extreme of filter screen cup can be dismantled with the mouth that concatenates of stainless steel collecting tube down and be connected, goes up filter screen cup and filter screen cup down and passes through threaded connection as an organic whole. The utility model discloses an go up clamping ring and lower clamping ring with aseptic filter membrane pressfitting then with last clamping ring, aseptic filter membrane, lower clamping ring whole place into down the filter screen cup in make down the clamping ring erect on the neck ring down, then will go up filter screen cup and filter screen cup closure down soon and can obtain a filter unit that the roughness is good.

Description

Microbial limit detector

Technical Field

The utility model relates to a microorganism limit detects technical field, specifically is a microorganism limit detector.

Background

When the microbial limit of the medicine is detected, a filter membrane filtration method is often adopted, namely, the medicine is diluted properly, then the medicine is pumped out by a negative pressure pump so that the medicine liquid passes through the filter membrane, the filter membrane intercepts microbes in the medicine liquid on the surface of the filter membrane, then the filter membrane is inoculated into a culture medium prepared in advance, and finally qualitative or quantitative detection is carried out, the prior patent document (CN 213803791U) indicates that one side of the filter membrane in the equipment is easy to be depressed at the middle part due to negative pressure so as to influence the detection effect, so that the middle part of the filter membrane is jacked up by a jacking block with elastic potential energy so as to restore the filter membrane to be in a straight state, but if the filter membrane is kept to be straight in the negative pressure state, the height of the elastic jacking block is higher than the installation height of the filter membrane in the initial state, the installation of the filter membrane is inconvenient, and the quality of the filter membrane is influenced because the filter membrane is upwards raised before the negative pressure is generated after the installation, and the precision assembly parts of the device are not favorable for assembly, in addition, the precision detection is also unfavorable for clamping when the filter membrane is finished by directly transferring to the filter membrane, the filter membrane is still required after the filter is finished, the clamping of the tweezers, the detection accuracy is also unfavorable for the clamping in the maintenance of the detection of the flatness is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the problems presented above, a microbial limit detector is provided which solves the above-mentioned problems.

The utility model provides a its technical problem take following technical scheme to realize:

the utility model provides a microbial limit detector, includes that stainless steel collecting tube, homogeneity cup, waste liquid collect cup, pipette, pump, aseptic filter membrane, wherein the connected mode between waste liquid collecting cup, pipette, pump, the stainless steel collecting tube is unanimous with prior art, still includes filter screen cup, lower filter screen cup, goes up the clamping ring, clamping ring down, tear cup magnetism and inhale the ring, just go up filter screen cup the upper end with the connection can be dismantled to homogeneity cup's lower extreme, lower filter screen cup the lower extreme with the connection can be dismantled to the concatenate mouth of stainless steel collecting tube, go up filter screen cup with filter screen cup is as an organic whole down through threaded connection, the last port of lower filter screen cup is equipped with down the neck ring, the clamp ring erects down on the neck ring, aseptic filter membrane tiles under just on the clamping ring, aseptic filter membrane, go up the external diameter of clamping ring unanimous, and the clamping ring with go up fixed clamping ring on the clamping ring and be equipped with the magnetism and inhale the part of mutually supporting, go up the clamping ring and press on the aseptic filter membrane, go up the clamping ring and inhale the clamping ring.

Preferably, the upper pressing ring comprises a first ring, clamping blocks for clamping the tweezers are symmetrically and fixedly arranged on the upper end face of the first ring, and main magnetic suction pieces are fixedly arranged on the lower end face of the first ring in an annular array.

Preferably, go up the clamping ring and include the third ring, the fixed piece of raising and being equipped with of up end of third ring the fixed crossbearer that is equipped with in upper end of raising the piece just is in the fixed post of taking that is equipped with in middle part of crossbearer, the upper end of the post of taking is equipped with the diameter and is greater than the anti-skidding head of the diameter of the post of taking, the fixed main magnetic sheet of being equipped with of lower terminal surface annular array of third ring be used for with the part adsorbs each other is inhaled to magnetism on the clamping ring down.

Preferably, the lower pressure ring comprises a second annular ring, and the second annular ring is fixedly provided with an annular array which is matched with the main magnetic attraction piece in a magnetic attraction manner and is attracted by the magnetic attraction piece.

Preferably, the middle part of lower clamping ring still fixedly is equipped with the support frame, the support frame is cross form just the up end of support frame with the up end parallel and level of second ring circle.

Preferably, the annular array on the lower end face of the upper pressing ring is provided with positioning meshing teeth, the height of the positioning meshing teeth is not larger than the thickness of the sterile filter membrane, and the annular array on the lower pressing ring is provided with tooth holes matched with the positioning meshing teeth.

The utility model has the advantages that: during installation, use earlier go up the clamping ring with the clamping ring will down aseptic filter membrane pressfitting then will go up clamping ring, aseptic filter membrane, lower clamping ring whole place into make down in the filter screen cup the clamping ring erects down on the neck ring, then will go up the filter screen cup with filter screen cup closes soon down can obtain a filter screen assembly that the roughness is good, then will down the lower extreme of filter screen cup with the stainless steel collecting tube intercommunication will go up the upper end of filter screen cup with can begin the negative pressure filtrating operation after the homogeneity cup intercommunication, will after the filtrating finishes down filter screen cup reaches go up the filter screen cup and take down and unpack through tweezers clamp and get it will go up filter screen cup, aseptic filter membrane, lower clamping ring take out and shift to the culture dish under the aseptic environment, then will it places to inhale the lower extreme of culture dish through the cup ring will be gone down the clamping ring adsorbs (it should be said to explain that the clamping ring is greater than the magnetic attraction of main magnetic clamping ring is greater than and makes it keep stable the magnetic attraction of last clamping ring press to get through the filter screen cup and shift to the culture dish of the pollution of the filter screen cup on next step of being convenient for on next step.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the upper and

lower strainer cups

27, 26 of FIG. 2;

FIG. 4 is a schematic diagram of the construction of upper and

lower strainer cups

27 and 26 of FIG. 2;

FIG. 5 is a schematic structural view of the upper pressing ring 11, the lower pressing ring 12, the cup-detaching magnetic attraction ring 30 and the aseptic filter membrane 10 of the present invention;

fig. 6 is a schematic structural view (another embodiment) of the upper press ring 11 and the lower press ring 12 of the present invention;

fig. 7 is a schematic structural view (another embodiment) of the upper press ring 11 and the lower press ring 12 of the present invention;

fig. 8 is another angle structure diagram of the upper pressing ring 11 and the lower pressing ring 12 in fig. 7.

The scores in the figures are as follows: 10. a sterile filtration membrane; 11. pressing a ring; 12. a lower pressure ring; 13. a first loop; 14. a clamping block; 15. a second loop; 16. a support frame; 17. magnetically attracting the sheet; 18. lifting the block; 19. a cross frame; 20. taking the column; 21. an anti-slip head; 22. a third loop; 23. a main magnetic suction sheet; 24. positioning the occlusion teeth; 25. a perforation; 26. a lower filter cup; 27. a filter screen cup is arranged; 28. a neck ring is arranged; 29. a neck ring is arranged; 30. disassembling the cup magnetic ring; 31. a waste liquid collection cup; 32. a pump; 33. a pipette; 34. a stainless steel integrated tube; 35. and (4) a homogenizing cup.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1-8, a microbial limit detector according to the present invention comprises a stainless steel integrated tube 34, a homogenizing cup 35, a waste liquid collecting cup 31, a pipette 33, a pump 32, and an aseptic filter membrane 10, wherein the connection between the waste liquid collecting cup 31, the pipette 33, the pump 32, and the stainless steel integrated tube 34 is consistent with the prior art, that is, the pump 32 is communicated with the side opening of the waste liquid collecting cup 31, the liquid inlet of the waste liquid collecting cup 31 is communicated with the pipette 33, the other end of the pipette 33 is communicated with the liquid outlet of the stainless steel integrated tube 34, (the principle is that, when the pump 32 is started, air in the waste liquid collecting cup 31 is pumped away to enable the waste liquid collecting cup 31 and the stainless steel integrated tube 34 communicated therewith to form a negative pressure, so that a liquid to be detected stored in the homogenizing cup 35 will permeate down through a filter screen, a colony statistics can be performed after the microbe is intercepted in a culture dish, the bacteria colony statistics can be performed, the detector further comprises an upper filter screen cup 27, a lower filter ring 26, an upper filter ring 11, a lower ring 12, a lower filter ring 12, and a lower filter ring 12, which is connected with the upper filter ring 12 and a lower filter ring 12, the upper filter ring 12 is connected with the upper filter cup 26 and a lower filter ring 12, which are connected with the upper filter ring 12 which is connected with the upper filter ring 12, and a lower filter ring 12 which is connected with the upper filter ring 12, the upper press ring 11 is pressed on the sterile filter membrane 10, the lower port of the upper filter screen cup 27 is provided with an upper neck ring 29, the upper neck ring 29 is pressed on the upper end of the upper press ring 11, the upper press ring 11 and the lower press ring 12 are firstly used for pressing the sterile filter membrane 10 and then integrally placing the upper press ring 11, the sterile filter membrane 10 and the lower press ring 12 into the lower filter screen cup 26, then the upper filter screen cup 27 and the lower filter screen cup 26 are screwed to obtain a filter membrane device with good flatness, then the lower end of the lower filter screen cup 26 is communicated with the stainless steel integrated pipe 34, the upper end of the upper filter screen cup 27 is communicated with the homogeneous cup 35, then the filtration operation can be started, the lower filter screen cup 26 and the upper filter screen cup 27 are taken down and taken down to be taken out through the upper press ring 11, the sterile filter ring 10 and the lower press ring 12 are taken out and transferred to a culture dish under the sterile environment, then the magnetic suction ring 30 is placed on the culture dish, the lower end of the upper press ring 11 is held by the tweezers, and the tweezers are held by the upper press ring 11, and the tweezers are stably held by the tweezers 12, and the tweezers are further taken down.

Preferably, the upper pressing ring 11 includes a first ring 13, the upper end surface of the first ring 13 is symmetrically and fixedly provided with clamping blocks 14 for clamping tweezers, and the lower end surface of the first ring 13 is fixedly provided with a main magnetic attraction piece 23 (not shown in the figure) in an annular array for attracting magnetic attraction components on the lower pressing ring 12.

Preferably, go up clamping ring 11 and include third ring 22, the fixed piece 18 that raises and be in that is equipped with of up end of third ring 22 is fixed to be equipped with in the upper end of raising piece 18 and be in the fixed crossbearer 19 that is equipped with in middle part of crossbearer 19 takes post 20, the upper end of taking post 20 is equipped with the diameter and is greater than the antiskid head 21 of the diameter of taking post 20, the fixed main magnet that is equipped with of lower terminal surface annular array of third ring 22 inhale piece 23 be used for with magnetism on the clamping ring 12 is inhaled the part and is adsorbed each other down, will crossbearer 19 is raised and is in order to avoid its cover aseptic filter membrane 10's last influence filtrating to permeate through, simultaneously it is convenient for getting of tweezers to take post 20 and put.

Preferably, lower clamping ring 12 includes second ring 15, and annular array is fixed be equipped with on second ring 15 with main magnetism inhale piece 23 magnetism inhale the complex from inhale piece 17, through inhale piece 17 from magnetism with the absorption of main magnetism inhale piece 23 will go up clamping ring 11 with thereby the synthetic integrative will of lower clamping ring 12 aseptic filter membrane 10 centre gripping is convenient for aseptic filter membrane 10 keeps the shift of horizontality.

Preferably, the middle part of clamping ring 12 still fixedly is equipped with support frame 16 down, support frame 16 is the cross form just the up end of support frame 16 with the up end parallel and level of second ring 15, through support frame 16 is right the cooperation is supported at the middle part of aseptic filter membrane 10 go up clamping ring 11 with the sideline pressfitting of clamping ring 12 is favorable to improving aseptic filter membrane 10's roughness down.

Preferably, the annular array of the lower end surface of the upper pressing ring 11 is provided with positioning meshing teeth 24, the height of the positioning meshing teeth 24 is not larger than the thickness of the sterile filter membrane 10, the annular array of the lower pressing ring 12 is provided with tooth holes 25 matched with the positioning meshing teeth 24, and after the sterile filter membrane 10 is placed, the positioning meshing teeth 24 press the part of the sterile filter membrane 10 into the tooth holes 25 through the pressing of the upper pressing ring 11, so that the installation stability of the sterile filter membrane 10 is improved.

In specific implementation, during installation, the upper press ring 11 and the lower press ring 12 are used for pressing the sterile filter membrane 10, then the upper press ring 11, the sterile filter membrane 10 and the lower press ring 12 are integrally placed into the lower filter cup 26, so that the lower press ring 12 is erected on the lower neck ring 28, then the upper filter cup 27 and the lower filter cup 26 are screwed to obtain a filter screen device with good flatness, then the lower end of the lower filter cup 26 is communicated with the stainless steel integrated pipe 34, the upper end of the upper filter cup 27 is communicated with the homogenizing cup 35, so that negative pressure filtrate operation can be started, after filtrate is finished, the lower filter cup 26 and the upper filter cup 27 are taken down and are taken down, the upper press ring 11 is taken down by the magnetic suction ring 11, the upper press ring 11, the sterile filter membrane 10 and the lower press ring 12 are taken out of the culture dish in a sterile environment, and then the dismantling ring 30 is placed at the lower end of the culture dish and is adsorbed by the lower press ring 12 through the magnetic suction ring 30 (the magnetic suction ring 30 is used for dismantling the magnetic suction ring 30, so that the magnetic suction ring 23 is kept larger than the magnetic suction ring 23, so that the culture dish in the next step of the culture dish in the sterile environment can be dismantled by the magnetic suction ring 23.

It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.

Claims

1. A microbial limit detector, comprising: comprises a stainless steel integrated tube (34), a homogenizing cup (35), a waste liquid collecting cup (31), a liquid suction pipe (33), a pump (32), a sterile filter membrane (10), an upper filter screen cup (27), a lower filter screen cup (26), an upper pressure ring (11), a lower pressure ring (12) and a cup-dismantling magnetic suction ring (30), and the upper end of the upper filter screen cup (27) is detachably connected with the lower end of the homogenizing cup (35), the lower end of the lower filter screen cup (26) is detachably connected with the serial connection port of the stainless steel integrated pipe (34), the upper filter screen cup (27) and the lower filter screen cup (26) are connected into a whole through screw threads, the upper port of the lower filter screen cup (26) is provided with a lower neck ring (28), the lower press ring (12) is arranged on the lower neck ring (28), the sterile filter membrane (10) is tiled on the lower press ring (12) and the outer diameters of the lower press ring (12), the sterile filter membrane (10) and the upper press ring (11) are consistent, and magnetic parts which are mutually matched in a magnetic attraction way are fixedly arranged on the lower pressing ring (12) and the upper pressing ring (11), the upper pressure ring (11) is pressed on the sterile filter membrane (10), the lower port of the upper filter screen cup (27) is provided with an upper neck ring (29), and the upper neck ring (29) is pressed at the upper end of the upper pressing ring (11).

2. A microbial limit detector according to claim 1, wherein: go up clamping ring (11) including first ring (13), the up end symmetry of first ring (13) is fixed to be equipped with and supplies tweezers to press from both sides the piece of holding in the mouth (14) of getting, the lower terminal surface annular array of first ring (13) is fixed to be equipped with main magnetic suction piece (23).

3. A microbial limit detector according to claim 1, wherein: go up clamping ring (11) and include third ring (22), the fixed piece (18) of raising that is equipped with of up end of third ring (22) just is in the fixed crossbearer (19) that is equipped with in upper end of raising piece (18) and the fixed post (20) of taking that is equipped with in middle part of crossbearer (19), the upper end of the post (20) of taking is equipped with the diameter and is greater than anti-skidding head (21) of the diameter of the post (20) of taking, the fixed main magnetic suction piece (23) that is equipped with of lower terminal surface annular array of third ring (22).

4. A microbial limit detector according to any one of claims 2-3, wherein: lower clamping ring (12) include second ring (15), and annular array is fixed to be equipped with on second ring (15) with main magnetism inhales piece (23) magnetism and inhales complex from inhaling piece (17).

5. The microbial limit detector of claim 4, wherein: the middle part of lower clamping ring (12) is still fixed and is equipped with support frame (16), support frame (16) are the cross form just the up end of support frame (16) with the up end parallel and level of second ring circle (15).

6. The microbial limit detector of claim 5, wherein: go up the annular array of lower terminal surface of clamping ring (11) and be equipped with location interlock tooth (24) just the height of location interlock tooth (24) is not more than the thickness of aseptic filter membrane (10), and annular array is equipped with on lower clamping ring (12) with the perforation (25) of location interlock tooth (24) mutually supporting.