CN208684962U - A kind of Microbiological detection of foods instrument - Google Patents
A kind of Microbiological detection of foods instrument Download PDFInfo
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- CN208684962U CN208684962U CN201821320555.4U CN201821320555U CN208684962U CN 208684962 U CN208684962 U CN 208684962U CN 201821320555 U CN201821320555 U CN 201821320555U CN 208684962 U CN208684962 U CN 208684962U
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- cabinet
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Abstract
The utility model relates to technical field of food detection.It is designed to provide a kind of Microbiological detection of foods instrument of good airproof performance.The technical scheme adopted by the utility model is a kind of Microbiological detection of foods instrument, the cabinet being open including top setting and the case lid for fitting in top of the box；The shoulder of a ring shape is provided on the inner wall on the cabinet top, the top surface of the shoulder is in the inclined-plane at slope aspect cabinet center, is provided with internal screw thread on the cabinet wall above shoulder；The center of the cabinet inner bottom surface is placed with sample cup, and the intracorporal lower part of case is provided with a circle oxygen endless tube, and the bottom of the oxygen endless tube is evenly arranged with several gas outlets directed downwardly, and the oxygen endless tube is connect with the oxygen generator being fixed on cabinet wall；Oxygen concentration sensor and gas concentration lwevel sensor are additionally provided on the inner wall of the cabinet.The utility model has fabulous leakproofness, to ensure that the accuracy of testing result.
Description
Technical field
The utility model relates to technical field of food detection, and in particular to a kind of Microbiological detection of foods instrument.
Background technique
Microbiological detection of foods be the type that microorganism in food is examined with microbiological theoretical and method, quantity,
The influence of property and its health to people, to differentiate detection method that whether food meets the quality standard.Food microbe testing
It is to measure one of the important indicator of food hygiene quality, and determine one of the scientific basis whether tested food eats.Pass through
Food microbe testing, it can be determined that food processing environment and food hygiene situation, it can be to the degree that food is contaminated by bacterial
Correct evaluation is made, provides scientific basis for every administration of health work.Currently, study both at home and abroad based on the fast of metabolism
The method that fast detection technique quickly detects microorganism in food sum mainly has: ATP bioluminescence technique, zymolyte method, electrification
Technology, phage technology etc..These methods have the shortcomings that cumbersome, detection time is too long mostly.
Application No. is 201621056631.6 patent documents to disclose a kind of Microbiological detection of foods device, the dress thus
The technical solution set is placed on sample in one closed cabinet, and gas concentration lwevel sensor, oxygen are arranged in cabinet
Concentration sensor is passed through oxygen in cabinet, and microorganism absorbs oxygen during movable, generates carbon dioxide, passes through meter
The quality of the carbon dioxide generated is calculated to calculate the quantity of microorganism.But the device still has certain defect: 1, sealing
Performance is not ideal enough, affects the precision of detection.2, it when sample volume is larger, needs to be examined in biggish cabinet
It surveys, but due to the otherness of carbon dioxide gas and oxygen density, gas has certain layering, and then leads to cabinet upper layer
Gas concentration lwevel is lower than lower layer, requires in high detection in some pairs of testing results, causes to detect misalignment.
Summary of the invention
The purpose of this utility model is to provide a kind of Microbiological detection of foods instrument of good airproof performance.
For achieving the above object, the technical scheme adopted by the utility model is a kind of Microbiological detection of foods instrument,
The cabinet of opening is set including top and fits in the case lid of top of the box；A ring is provided on the inner wall on the cabinet top
The shoulder of shape, the top surface of the shoulder are in the inclined-plane at slope aspect cabinet center, are provided with internal screw thread on the cabinet wall above shoulder；
The top of the case lid side is provided with external screw thread and is located at the inner wall composition above shoulder with cabinet and is threadedly engaged, case lid side
Lower part be in the inclined-plane that is matched with shoulder top surface, and the rubber seal of taper is arranged with outside the lower part of case lid side；It is described
Case lid is provided centrally with the exhaust pipe for extending vertically through case lid, is provided with exhaust valve on the exhaust pipe；
The center of the cabinet inner bottom surface is placed with sample cup, and the intracorporal lower part of case is provided with a circle oxygen endless tube, described
The bottom of oxygen endless tube is evenly arranged with several gas outlets directed downwardly, the oxygen endless tube and is fixed on cabinet wall
Oxygen generator connection；Oxygen concentration sensor and gas concentration lwevel sensor are additionally provided on the inner wall of the cabinet.
Preferably, the bottom surface of the case lid is in the hemispherical of fovea superior.
Preferably, agitation fan is additionally provided on the inner wall of the cabinet.
Preferably, L-shaped rotating handles are additionally provided on the top surface of the case lid.
The beneficial effects of the utility model embody a concentrated reflection of, and have fabulous leakproofness, to ensure that testing result
Accuracy.Specifically, the utility model in use, sample to be detected is mounted in sample cup, then by sample cup
It is put into cabinet, then installs case lid.Case lid moves down during rotation, and rubber seal is tightly pressed at shoulder
The top surface of platform ensure that the decrement of rubber seal, have high-air-tightness.Then exhaust valve, oxygen generator starting are opened
Oxygen is prepared, oxygen is discharged into cabinet by the gas outlet on oxygen endless tube, and air is discharged through exhaust pipe, until oxygen concentration passes
Sensor detects that the intracorporal oxygen concentration of case reaches 99.5% or more, and oxygen generator is closed.The utility model is due to gas outlet
Downward, oxygen enters cabinet by way of filling injection, it can be ensured that the discharge of air-stable improves intestine evacuation velocity.It connects
Microorganism that the sample in sample cup is contained carry out constant temperature incubation 30 minutes or so, finally sensed according to gas concentration lwevel
The gas concentration lwevel that device detects calculates the quantity of microorganism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
A kind of Microbiological detection of foods instrument as shown in Figure 1 is arranged the cabinet 1 of opening including top and fits in cabinet 1
The case lid 2 at top.The cabinet 1 and case lid 2 are generally made of highstrenghtpiston, light weight, at low cost.1 top of cabinet
Inner wall on be provided with the shoulder 3 of a ring shape, the top surface of the shoulder 3 is in the inclined-plane at 1 center of slope aspect cabinet, 3 top of shoulder
1 inner wall of cabinet on be provided with internal screw thread.The top of 2 side of case lid is provided with external screw thread and is located on shoulder 3 with cabinet 1
The inner wall composition of side is threadedly engaged, and the lower part of 2 side of case lid is in the inclined-plane matched with 3 top surface of shoulder, and under 2 side of case lid
The rubber seal 4 of taper is arranged with outside portion.The case lid 2 is provided centrally with the exhaust pipe for extending vertically through case lid 2
5, exhaust valve is provided on the exhaust pipe 5.
The center of 1 inner bottom surface of cabinet is placed with sample cup 7, and sample cup 7 is typically chosen glassware, in cabinet 1
Lower part is provided with a circle oxygen endless tube 8, and the bottom of the oxygen endless tube 8 is evenly arranged with several gas outlets directed downwardly 9, the oxygen
Compression ring pipe 8 is connect with the oxygen generator 10 being fixed on 1 inner wall of cabinet.It is also set up on the inner wall of the cabinet 1 aerobic
Gas concentration sensor 11 and gas concentration lwevel sensor 12.
Sample cup 7 in use, by sample to be detected in sample cup 7, is then put into case by the utility model
In body 1, case lid 2 is then installed.Case lid 2 moves down during rotation, and rubber seal 4 is tightly pressed at shoulder
3 top surface ensure that the decrement of rubber seal 4, have high-air-tightness.For the ease of rotating case lid 2, the case lid 2
L-shaped rotating handles 14 are additionally provided on top surface.
Then exhaust valve is opened, 10 starting of oxygen generator prepares oxygen, and oxygen is after the distribution of oxygen endless tube 8, through it
On gas outlet 9 be discharged into cabinet 1, air is discharged through exhaust pipe 5, in order to ensure air discharge smoothness, the case lid 2
Bottom surface is in the hemispherical of fovea superior, plays convergence air effect.Until oxygen concentration sensor 11 detects that the oxygen in cabinet 1 is dense
Degree reaches 99.5% or more, and oxygen generator 10 is closed.The utility model passes through filling injection due to outlet mouth down, oxygen
Mode enters cabinet, it can be ensured that the discharge of air-stable improves intestine evacuation velocity.Then the sample in sample cup 7 is contained
Microorganism carry out constant temperature incubation 30 minutes or so, the carbon dioxide finally detected according to gas concentration lwevel sensor 12 is dense
Degree calculates the quantity of microorganism.In order to improve the accuracy of detection, better way is also possible that the cabinet 1
Agitation fan 13 is additionally provided on inner wall.After constant temperature incubation starts, agitation fan 13 is opened, and the equal of 1 gas of cabinet can be improved
Evenness.
Claims (4)
1. a kind of Microbiological detection of foods instrument, it is characterised in that: the cabinet (1) of opening is arranged including top and fits in cabinet
(1) case lid (2) at the top of；The shoulder (3) of a ring shape is provided on the inner wall on cabinet (1) top, the shoulder (3)
Top surface is in the inclined-plane at slope aspect cabinet (1) center, is provided with internal screw thread on cabinet (1) inner wall above shoulder (3)；The case lid
(2) top of side is provided with external screw thread and is located at the inner wall composition above shoulder (3) with cabinet (1) and is threadedly engaged, case lid (2)
The lower part of side is in the inclined-plane matched with shoulder (3) top surface, and the rubber that taper is arranged with outside the lower part of case lid (2) side is close
Seal (4)；The case lid (2) is provided centrally with the exhaust pipe (5) for extending vertically through case lid (2), the exhaust pipe (5)
On be provided with exhaust valve；
The center of cabinet (1) inner bottom surface is placed with sample cup (7), and the lower part in cabinet (1) is provided with a circle oxygen endless tube
(8), the bottom of the oxygen endless tube (8) is evenly arranged with several gas outlets directed downwardly (9), the oxygen endless tube (8) and fixation
Oxygen generator (10) connection being arranged on cabinet (1) inner wall；Oxygen concentration biography is additionally provided on the inner wall of the cabinet (1)
Sensor (11) and gas concentration lwevel sensor (12).
2. Microbiological detection of foods instrument according to claim 1, it is characterised in that: the bottom surface of the case lid (2) is in fovea superior
Hemispherical.
3. Microbiological detection of foods instrument according to claim 2, it is characterised in that: also set on the inner wall of the cabinet (1)
It is equipped with agitation fan (13).
4. Microbiological detection of foods instrument according to claim 3, it is characterised in that: also set on the top surface of the case lid (2)
It is equipped with L-shaped rotating handles (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320555.4U CN208684962U (en) | 2018-08-16 | 2018-08-16 | A kind of Microbiological detection of foods instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320555.4U CN208684962U (en) | 2018-08-16 | 2018-08-16 | A kind of Microbiological detection of foods instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208684962U true CN208684962U (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821320555.4U Active CN208684962U (en) | 2018-08-16 | 2018-08-16 | A kind of Microbiological detection of foods instrument |
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| Country | Link |
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| CN (1) | CN208684962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
-
2018
- 2018-08-16 CN CN201821320555.4U patent/CN208684962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN112578026B (en) * | 2020-12-10 | 2023-10-20 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
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