CN115155313B - Batch filtering device for aquatic product detection - Google Patents
Batch filtering device for aquatic product detection Download PDFInfo
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- CN115155313B CN115155313B CN202210790653.9A CN202210790653A CN115155313B CN 115155313 B CN115155313 B CN 115155313B CN 202210790653 A CN202210790653 A CN 202210790653A CN 115155313 B CN115155313 B CN 115155313B
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- cavity
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- main box
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention discloses a batch filtering device for aquatic product detection, which comprises a main box body with a closed inner cavity, wherein a plurality of groups of detachable sample storage devices are arranged on the inner side of the upper end of the main box body, an auxiliary box body with the closed inner cavity is arranged on the upper end of a supporting column, and an automatic pressing device for pressing against the filtering barrel is arranged above the filtering barrel. According to the invention, the rubber plug of the sample storage device is assisted to push by the automatic pressing device to block the communication hole to realize sealing, and when the vacuum pumping work is performed, gas is conveyed into the air bag and the telescopic bag by the power device to push the rubber plug of the sample storage device to downwards approach the communication hole to realize sealing, so that the negative pressure of the inner cavity of the main box body is increased, and the greater the pushing power is, the more firm the sealing is; the sample storage device is arranged in a plurality of groups, so that sample extracting solutions of various aquatic products can be filtered at the same time, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of aquatic product detection, in particular to a batch filtering device for aquatic product detection.
Background
Along with the improvement of the living standard of people, the quality problem of the aquatic products is also more and more concerned when the production and consumption yield of the aquatic products are greatly improved; how to test the quality of aquatic products is a very serious concern for consumers. According to related food regulations and food inspection regulation requirements, the aquatic products need to be inspected in aspects of sensory inspection, physical inspection, chemical inspection and the like so as to ensure the quality safety of the aquatic products. In the detection of aquatic products, the sample extracting solution obtained after sample pretreatment can be subjected to instrumental analysis after being filtered by a filtering membrane.
The sample extract filtering device of the current aquatic products generally adopts a negative pressure suction mode to filter the sample extract. The current negative pressure suction type sample extracting solution filtering device generally comprises an air pump, a main box body with a closed inner cavity and a filtering cylinder, wherein a placing through hole communicated with the inner cavity of the main box body is arranged on the top surface of the main box body, the filtering cylinder can be inserted into the placing through hole in a removable mode, and a filtering membrane interlayer is arranged on the bottom surface of the filtering cylinder. In the actual working process, the sample extracting solution is injected into the filter cartridge, and the inner cavity of the main box body is vacuumized through the air pump, so that the sample extracting solution in the filter cartridge permeates the filter membrane, and a detection sample is obtained. The existing negative pressure suction type sample extracting solution filtering device is used for avoiding air leakage between the placing through holes and the filter cartridge in the vacuumizing process, so that the vacuumizing effect of the inner cavity of the main box body is poor; the common practice is that a sealing ring is arranged on the inner side face of the placement through hole, and after the filter cartridge is inserted into the placement through hole, the sealing ring is used for sealing between the placement through hole and the filter cartridge; however, the sealing effect is often poor simply by arranging a sealing ring between the placing through hole and the filter cartridge; in the process of vacuumizing the inner cavity of the main box body, along with the increase of negative pressure in the inner cavity of the main box body, poor sealing between the placing through holes and the filter cartridge is often generated easily, so that external air enters the inner cavity of the main box body, and the filtration of the sample extracting solution is influenced. On the other hand, in the in-service use, because the cartridge filter needs to take out often and wash and adorn the appearance, the cartridge filter is installed in the main tank body and is wasted time and energy for place the sealing washer between through-hole and the cartridge filter not hard up, produce the clearance, lead to main tank body inner chamber evacuation in-process external gas to get into main tank body inner chamber, influence the filtration of sample extract.
Disclosure of Invention
The invention aims to solve the technical problems, and provides the batch filtering device for detecting the aquatic products, which is convenient to operate and can effectively solve the problems that the negative pressure of the vacuumized cavity is insufficient and the filtering of the sample extracting solution is affected due to the fact that the external gas enters the vacuumized cavity in the vacuumized process.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a batch filter equipment that aquatic products detected and use, includes the main tank body that has airtight inner chamber, the upper end inboard of main tank body is equipped with multiunit detachable sample strorage device, sample strorage device is including seting up the intercommunicating pore in the main tank body upper end inboard, the upper end inboard of intercommunicating pore is the round platform structure of handstand, be equipped with the cartridge filter that the cooperation was used in the intercommunicating pore, install the filtration membrane interlayer in the cartridge filter, the outer lane of cartridge filter is equipped with the rubber end cap that the cooperation intercommunicating pore was used, the lower extreme of cartridge filter is equipped with the connecting rod relatively, two sample memory is installed to the lower extreme of connecting rod, the support column is installed to the upper end of main tank body, the upper end of support column is equipped with the auxiliary tank body that has airtight inner chamber, the top of cartridge filter is equipped with the automatic closing device of supporting the cartridge filter, automatic closing device sliding connection auxiliary tank body's slide bar, the cross supporting the cartridge filter's of support is installed to the lower extreme, the outside of slide bar and be located cross supporting the cartridge and be equipped with the spring between cartridge filter, install spacing shell on the inner wall of auxiliary tank body, the lower wall of the main tank body is equipped with spacing shell, the lower side of the air bag is equipped with the communicating tube is equipped with the side of the air bag, and the air bag is equipped with the side of the communicating tube.
After adopting the structure, the invention has the following advantages:
1. according to the invention, the rubber plug of the sample storage device is assisted to push by the automatic pressing device to block the communication hole to realize sealing, and when the vacuum pumping work is performed, gas is conveyed into the air bag and the telescopic bag by the power device to push the rubber plug of the sample storage device to downwards approach the communication hole to realize sealing, so that the negative pressure of the inner cavity of the main box body is increased, and the greater the pushing power is, the more firm the sealing is;
2. the sample storage device can be manually placed into the communication hole, and is more convenient and quicker to store and take out;
3. the sample storage device is arranged in a plurality of groups, so that sample extracting solutions of various aquatic products can be filtered at the same time, and the working efficiency is improved.
As an improvement, power device includes that the inner chamber is the intercommunication formula cylinder body of echelonment and inner chamber comprises first cavity and the second cavity of mutual intercommunication, all be equipped with the first piston body and the second piston body of adaptation and connect through the connecting rod between first piston body and the second piston body in first cavity and the second cavity, the one end opening that is close to first piston body on the intercommunication formula cylinder body is close to the one end of second piston body, be equipped with the preshrinking spring between the blind end inner wall of second cavity and the second piston body, be equipped with the dead lever between intercommunication formula cylinder body and the main tank body, one side that is close to the dead lever in the first cavity is equipped with the first stopper of restriction first piston body, the outside of first cavity just is equipped with first connecting pipe and first connecting pipe intercommunication main tank body between first piston body and the second piston body, one side upper end that the second cavity was kept away from to the second connecting pipe is equipped with second connecting pipe and second connecting bag.
As an improvement, the cross-sectional area of the first cavity is larger than the cross-sectional area of the second cavity.
As an improvement, a second limiting block is arranged on the inner side surface of the second cavity, and the second limiting block is positioned between the second piston body and the second connecting pipe.
As an improvement, a switch valve is arranged on the outer side of the main box body.
As an improvement, a sliding hole matched with a sliding rod is formed in the inner part of the lower end of the auxiliary box body.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the sample storage device according to the present invention.
FIG. 3 is a schematic view of the structure of the sample storage device of the present invention.
FIG. 4 is a cross-sectional view of a sample storage device of the present invention.
Fig. 5 is a cross-sectional view of the sub-tank of the present invention.
Fig. 6 is an internal schematic view of the power plant of the present invention.
Fig. 7 is a sectional view of the communication hole of the present invention.
As shown in the figure: 1. a main case; 1.1, a pipeline; 2. a sample storage device; 2.1, communicating holes; 2.2, a filter cartridge; 2.3, a filtering membrane interlayer; 2.4, rubber plugs; 2.5, connecting rod; 2.6, a sample storage; 3. a support column; 4. an auxiliary box body; 5. an automatic compacting device; 5.1, a sliding rod; 5.2, a cross supporting block; 5.3, a spring; 6. a limit shell; 6.1, communicating pipe; 7. an air bag; 8. a flexible bag; 9. a power device; 9.1, a communicating cylinder; 9.2, a first cavity; 9.3, a second cavity; 9.4, a first piston body; 9.5, a second piston body; 9.6, pre-compressing the compression spring; 9.7, a first limiting block; 10. a fixed rod; 11. a first connection pipe; 12. a second connection pipe; 13. a second limiting block; 14. and (3) switching the valve.
Detailed Description
The present invention will be described in further detail in connection with the following.
Referring to fig. 1-2, a batch filtering device for aquatic product detection comprises a main box body 1 with a closed inner cavity, wherein a plurality of groups of detachable sample storage devices 2 are arranged on the inner side of the upper end of the main box body 1, the sample storage devices 2 are arranged into at least four groups, each sample storage device 2 comprises a communication hole 2.1 formed on the inner side of the upper end of the main box body 1, the inner side of the upper end of each communication hole 2.1 is of an inverted round platform structure, as shown in fig. 7, a filter cartridge 2.2 matched with the filter cartridge is arranged in each communication hole 2.1, a filtering membrane 2.3 is arranged in each filter cartridge 2.2, a rubber plug 2.4 matched with the communication hole 2.1 is arranged on the outer ring of each filter cartridge 2.2, in the practical design, the lower end face of each rubber plug 2.4 is matched with the inverted round platform structure of each communication hole 2.1, and meanwhile, the diameter of the upper end of each rubber plug 2.4 is larger than that of each communication hole 2.1, and the automatic compression device 5 can push the filter cartridge 2.2 to move downwards so that the firm plug communication holes 2.1 are sealed;
as shown in fig. 3-5, the lower end of the filter cartridge 2.2 is relatively provided with a connecting rod 2.5, the lower ends of the two connecting rods 2.5 are provided with a sample storage 2.6, the upper end of the main box body 1 is provided with a supporting column 3, the upper end of the supporting column 3 is provided with a secondary box body 4 with an inner cavity, an automatic pressing device 5 which is propped against the filter cartridge 2.2 is arranged above the filter cartridge 2.2, the automatic pressing device 5 is connected with a sliding rod 5.1 of the secondary box body 4 in a sliding way, the lower end of the sliding rod 5.1 is provided with a cross propping block 5.2 which is propped against the filter cartridge 2.2, a spring 5.3 is arranged outside the sliding rod 5.1 and between the cross propping block 5.2 and the secondary box body 4, a limit shell 6 is arranged on the upper inner wall of the secondary box body 4, the lower end of the limit shell 6 is provided with a communicating pipe 6.1 and the communicating pipe 6.1 is sleeved outside the sliding rod 5.1, the lower end of the secondary box body 4 is provided with a sliding hole which is matched with the sliding rod 5.1 in a sliding way, the limit shell 6 is provided with an air bag 7, the lower end of the air bag 7 and the communicating pipe 6.1 are internally provided with a telescopic bag 8, the telescopic bag 8 is in the prior art, the lower end of the telescopic bag 8 is sealed, the upper end of the telescopic bag is communicated with the air bag 7, when the air bag 7 is filled with air, the telescopic bag 8 is pushed to move downwards in the communicating pipe 6.1 to contact with the sliding rod 5.1 and push the sliding rod 5.1 to move downwards, one side of the main box 1 is provided with a power device 9 for filling air into the air bag 7, one side of the main box 1 is provided with a pipeline 1.1 communicated with a vacuum extractor, the outer side of the main box 1 is provided with a switch valve 14, a spring 5.3 of the automatic pressing device 5 can push a cross abutting block 5.2 to move downwards against a filter cylinder 2.2, when the air bag is disassembled, the switch valve 14 is opened, the main box 1 is consistent with external air pressure, the cross abutting block 5.2 is manually pulled to move upwards to push the spring 5.3 to compress the sliding rod, the sliding rod 5.1 moves upwards in a sliding hole, the filter cylinder 2.2 is taken out, the sample storage device 2 can be easily taken out, as shown in fig. 2.
As shown in fig. 6, the power device 9 includes a communicating cylinder 9.1 with a stepped inner cavity and the inner cavity is formed by a first cavity 9.2 and a second cavity 9.3 which are mutually communicated, a first piston body 9.4 and a second piston body 9.5 which are matched are arranged in the first cavity 9.2 and the second cavity 9.3, one end opening, close to the first piston body 9.4, of the communicating cylinder 9.1 is connected through a connecting rod, one end, close to the second piston body 9.5, of the communicating cylinder 9.1 is sealed, a pre-compression spring 9.6 is arranged between the inner wall of the sealed end of the second cavity 9.3 and the second piston body 9.5, a fixed rod 10 is arranged between the communicating cylinder 9.1 and the main box 1, one side, close to the fixed rod 10, of the first cavity 9.2 is provided with a first limiting block 9.7 which limits the first piston body 9.4, the outer side, the side, which is positioned between the first piston body 9.4 and the second piston body 9.5, of the first limiting block 9.11, a main connecting pipe 11, which is positioned between the first piston body 9.4 and the second piston body 9.5, is provided with a cross section area, the second connecting pipe 12, which is positioned between the second connecting pipe 9.3.3 and the side of the second piston body 9.3, a cross section area, is positioned between the second connecting pipe 12, and the side of the second connecting pipe 9.3, and the side of the connecting pipe 12 is arranged between the second connecting pipe. When the vacuumizing machine works and negative pressure is formed inside the main box body 1 through the pipeline 1.1, the first connecting pipe 11 is communicated with the main box body 1, negative pressure is formed between the first piston body 9.4 and the second piston body 9.5, one end, close to the first piston body 9.4, of the communicating cylinder body 9.1 is opened, one end, close to the second piston body 9.5, of the communicating cylinder body 9.1 is closed, external atmospheric pressure is larger than internal atmospheric pressure, the first piston body 9.4 and the second piston body 9.5 are pushed to move towards the closed end and simultaneously are compressed by the pre-compression spring 9.6, gas is pushed to be led to the air bag 7 from the second connecting pipe 12, the air bag 7 is subjected to gas injected by external force, the telescopic bag 8 is pushed to move downwards in the communicating pipe 6.1 to contact the sliding rod 5.1, the sliding rod 5.1 is pushed to move downwards, the rubber plug 2.4 of the sample storage device 2 is pushed to move downwards, and the negative pressure of the inner cavity of the main box body 1 is increased, the rubber plug 2.4 of the sample storage device 2 is pushed to move downwards, and reliable sealing is further guaranteed.
The working principle of the invention is as follows:
firstly, injecting filtered sample extracting solution into a filter cartridge, placing a sample storage device in a communication hole, enabling a spring of an automatic pressing device to push a cross-shaped supporting block to prop against the filter cartridge to move downwards, enabling a rubber plug to block the communication hole to realize primary sealing, starting a vacuum extractor, and when negative pressure is formed in a main box body through a pipeline, as a communicating cylinder body inner cavity between a first piston body and a second piston body is communicated with an inner cavity of the main box body through a first communication pipeline, and the cross-sectional area of the first piston body is larger than that of the second piston body; therefore, the air pressure between the first piston body and the second piston body is reduced in the vacuumizing process, the second piston body moves towards the direction of the second limiting block, air in the communicated cylinder body is pressed into the second connecting pipe through the second communicating pipe to lead to the air bag, the air bag is subjected to external force injection, the telescopic bag is pushed to move downwards in the communicating pipe to contact the sliding rod and push the sliding rod to move downwards, the rubber plug of the sample storage device is pushed to move downwards, the negative pressure in the inner cavity of the main box body is increased, the rubber plug of the sample storage device is pushed to move downwards to be increased, the rubber plug and the communicating hole are further guaranteed to form reliable sealing, in the process, the sample extracting solution to be filtered penetrates through the filtering membrane and flows into the sample storage container, after the sample extracting solution to be filtered in the filtering membrane is filtered, the vacuumizing device is closed, the switching valve is opened, the main box body is consistent with external air pressure, the first piston body and the second piston body are pushed to reset by the pre-compressed compression spring, the filter cartridge is pulled upwards to push the cross-shaped block to compress the sliding rod to move upwards, the sliding rod to move upwards in the sliding hole, the sliding rod is further guaranteed to move upwards, and the filter cartridge can be taken out easily.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown throughout. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (6)
1. The utility model provides a batch filter equipment that aquatic products detected and use, includes main tank body (1) that has airtight inner chamber, its characterized in that, the upper end inboard of main tank body (1) is equipped with multiunit detachable sample strorage device (2), sample strorage device (2) are including seting up at the inboard intercommunicating pore (2.1) of main tank body (1), the upper end inboard of intercommunicating pore (2.1) is the round platform structure of handstand, be equipped with cartridge filter (2.2) that the cooperation was used in intercommunicating pore (2.1), install filtration membrane interlayer (2.3) in cartridge filter (2.2), the outer lane of cartridge filter (2.2) is equipped with rubber end cap (2.4) that the cooperation intercommunicating pore (2.1) was used, the lower extreme of cartridge filter (2.2) is equipped with connecting rod (2.5) relatively, two sample storage (2.6) are installed to the lower extreme of connecting rod (2.5), support column (3) are installed to the upper end of main tank body (1), the upper end of support column (3) is equipped with cartridge filter (2.2) that the cooperation was used, cartridge filter (2.2.2) has an automatic compression device (2.5) is equipped with in the lower side of cartridge filter (2.5), the utility model discloses a vacuum pump, including slide bar (5.1), auxiliary box (4) and connecting pipe, slide bar (5.1) outside and lie in cross support piece (5.2) and be equipped with spring (5.3) between auxiliary box (4), install spacing shell (6) on the upper inner wall of auxiliary box (4), communicating pipe (6.1) and communicating pipe (6.1) suit are installed in slide bar (5.1) outside to the lower extreme of spacing shell (6), be equipped with gasbag (7) in spacing shell (6), the lower extreme of gasbag (7) just lie in communicating pipe (6.1) is equipped with flexible bag (8), one side of main box (1) is equipped with power device (9) to the gas filling in gasbag (7), one side of main box (1) is equipped with pipeline (1.1) of intercommunication evacuating machine.
2. A batch filter apparatus for use in the detection of seafood as set forth in claim 1, wherein: the power device (9) comprises a communicating cylinder body (9.1) with a stepped inner cavity and the inner cavity is formed by a first cavity (9.2) and a second cavity (9.3) which are communicated with each other, a first piston body (9.4) and a second piston body (9.5) which are matched are arranged in the first cavity (9.2) and the second cavity (9.3), the first piston body (9.4) and the second piston body (9.5) are connected through a connecting rod, one end of the communicating cylinder body (9.1) close to the first piston body (9.4) is opened, one end close to the second piston body (9.5) is closed, a preshrinking spring (9.6) is arranged between the second piston body (9.5) and the inner wall of the closed end of the second cavity (9.3), a fixing rod (10) is arranged between the communicating cylinder body (9.1) and the main box body (1), one side of the communicating cylinder body (9.2) close to the fixing rod (10) is provided with a first limiting block (9.4) which is arranged, a first connecting pipe (9.5) is arranged between the first connecting pipe (9.5) and the first piston body (9.5), the upper end of one side, far away from the second cavity (9.3), of the second cavity (9.3) is provided with a second connecting pipe (12), and the second connecting pipe (12) is communicated with the air bag (7).
3. A batch filter apparatus for use in the detection of seafood as set forth in claim 2, wherein: the cross-sectional area of the first cavity (9.2) is larger than the cross-sectional area of the second cavity (9.3).
4. A batch filter apparatus for use in the detection of seafood as set forth in claim 2, wherein: a second limiting block (13) is arranged on the inner side face of the second cavity (9.3), and the second limiting block (13) is located between the second piston body (9.5) and the second connecting pipe (12).
5. A batch filter apparatus for use in the detection of seafood as set forth in claim 1, wherein: the outer side of the main box body (1) is provided with a switch valve (14).
6. A batch filter apparatus for use in the detection of seafood as set forth in claim 1, wherein: the inside of the lower end of the auxiliary box body (4) is provided with a slide hole matched with the slide rod (5.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210790653.9A CN115155313B (en) | 2022-07-05 | 2022-07-05 | Batch filtering device for aquatic product detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210790653.9A CN115155313B (en) | 2022-07-05 | 2022-07-05 | Batch filtering device for aquatic product detection |
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| Publication Number | Publication Date |
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| CN115155313A CN115155313A (en) | 2022-10-11 |
| CN115155313B true CN115155313B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210790653.9A Active CN115155313B (en) | 2022-07-05 | 2022-07-05 | Batch filtering device for aquatic product detection |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567309A (en) * | 1994-02-14 | 1996-10-22 | Alcott Chromatography, Inc. | Self-filtration cap |
| CN103550971A (en) * | 2013-11-08 | 2014-02-05 | 武汉理工大学 | Device for separating domestic sewage |
| CN203745268U (en) * | 2014-03-13 | 2014-07-30 | 浙江省海洋水产研究所 | Batch filter device for detecting aquatic products |
| CN105148577A (en) * | 2015-07-01 | 2015-12-16 | 浙江省海洋水产研究所 | Negative pressure suction type filter for aquatic product detection |
| CN207046990U (en) * | 2017-06-07 | 2018-02-27 | 张娟 | A kind of high stable type sewage disposal device |
| CN209490693U (en) * | 2018-09-14 | 2019-10-15 | 农业部渔业环境及水产品质量监督检验测试中心（天津）（天津市质量监督检验站第二十三站、天津市渔业环境及水产品质量监督检验测试中心） | Membrane filtration device and sedimeter |
-
2022
- 2022-07-05 CN CN202210790653.9A patent/CN115155313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567309A (en) * | 1994-02-14 | 1996-10-22 | Alcott Chromatography, Inc. | Self-filtration cap |
| CN103550971A (en) * | 2013-11-08 | 2014-02-05 | 武汉理工大学 | Device for separating domestic sewage |
| CN203745268U (en) * | 2014-03-13 | 2014-07-30 | 浙江省海洋水产研究所 | Batch filter device for detecting aquatic products |
| CN105148577A (en) * | 2015-07-01 | 2015-12-16 | 浙江省海洋水产研究所 | Negative pressure suction type filter for aquatic product detection |
| CN207046990U (en) * | 2017-06-07 | 2018-02-27 | 张娟 | A kind of high stable type sewage disposal device |
| CN209490693U (en) * | 2018-09-14 | 2019-10-15 | 农业部渔业环境及水产品质量监督检验测试中心（天津）（天津市质量监督检验站第二十三站、天津市渔业环境及水产品质量监督检验测试中心） | Membrane filtration device and sedimeter |
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| CN115155313A (en) | 2022-10-11 |
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