CN219897674U - A filter equipment for pesticide residue detects in cereal - Google Patents
A filter equipment for pesticide residue detects in cereal Download PDFInfo
- Publication number
- CN219897674U CN219897674U CN202320079417.6U CN202320079417U CN219897674U CN 219897674 U CN219897674 U CN 219897674U CN 202320079417 U CN202320079417 U CN 202320079417U CN 219897674 U CN219897674 U CN 219897674U
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- CN
- China
- Prior art keywords
- groove
- supporting plate
- filter
- shaped supporting
- box body
- 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.)
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- 239000000447 pesticide residue Substances 0.000 title claims abstract description 15
- 235000013339 cereals Nutrition 0.000 title claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 12
- 239000000706 filtrate Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a filtering device for detecting pesticide residues in grains, which comprises a box body and a box cover, wherein the bottom end inside the box body is provided with a clamping groove, a sample placing mechanism is arranged on the clamping groove, the sample placing mechanism comprises a U-shaped supporting plate and a supporting plate fixedly arranged at the rear side, a base is arranged at the bottom of the U-shaped supporting plate, a stabilizing groove is formed in the base, a first groove is oppositely formed in the middle of the U-shaped supporting plate, a detachable fixing plate is arranged in the first groove, a through hole is formed in the fixing plate, the stabilizing groove and the through hole are vertically corresponding and internally provided with test tubes, a second groove is oppositely formed in the top of the U-shaped supporting plate, an air suction nozzle and a vacuum meter positioned below the air suction nozzle are arranged on the outer side wall of the box body, a positioning hole is formed in the top of the box cover, a filter is vertically corresponding to the stabilizing groove and is arranged in the through hole, and the top of the filter is connected with an injector.
Description
Technical Field
The utility model relates to a filtering device, in particular to a filtering device for detecting pesticide residues in grains.
Background
The problem of pesticide residue in agricultural products is a main obstacle for preventing agricultural development and agricultural product quality safety in China, and one of key links for controlling pesticide residue in agricultural products is to timely and accurately analyze and detect the pesticide residue so as to monitor reasonable use of pesticide and prevent products with exceeding pesticide residue from being marketed and sold. The method is mainly applied to aspects of sample prefiltering, clarification and particle removal, liquid and gas sterilization filtration and the like, in liquid chromatography analysis, chromatographic column packing granularity is smaller and is easy to be blocked by impurity particles, so that the sample and solvent need to be prefiltered, particle pollutants are removed, an instrument is protected, the traditional needle filter is generally composed of a syringe and a filter, a microporous filter membrane is arranged in a filtrate device, under the action of external force of the syringe, a solution passes through the microporous filter membrane, solids and other substances are blocked on the microporous filter membrane, and the filtration is realized.
Disclosure of Invention
The utility model aims to provide a filtering device for detecting pesticide residues in grains, so as to solve the problem that the existing needle-type filter is low in filtering efficiency.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a filter equipment for pesticide residue detects in cereal, the power distribution box comprises a box body and a box cover, the inside bottom of box is provided with the draw-in groove, install sample placement machine on the draw-in groove and construct, sample placement machine includes U-shaped backup pad and fixed mounting in the backup pad of rear side, the base has been placed to U-shaped backup pad bottom, the stabilizer groove has been seted up on the base, first recess has been seted up to U-shaped backup pad middle part subtend, install detachable fixed plate in the first recess, the through-hole has been seted up on the fixed plate, stabilizer groove and through-hole correspond from top to bottom and built-in test tube, the second recess has been seted up to U-shaped backup pad top subtend, be provided with the suction nozzle on the box lateral wall and be located the vacuum table of suction nozzle below, the locating hole has been seted up at the case lid top, the locating hole corresponds and internally mounted has the filter from top to bottom with stabilizer groove, the filter top is connected with the syringe.
The principle and beneficial effect of this technical scheme:
according to the utility model, a closed cavity is formed by the box cover of the box body, then the air in the box is pumped by the external vacuum pump through the air suction nozzle to realize the negative pressure effect in the box, the shaking of the built-in test tube can be avoided through the upper and lower corresponding stabilizing grooves and the through holes, the corresponding positioning holes formed in the box cover can clamp the filter, the injector filled with filtrate is connected with the top of the filter, and the external air pressure pushes the injector push rod to realize the filtration of a plurality of samples.
Preferably, a bleeder valve is arranged on the branch pipe of the vacuum gauge.
After the filtration of the filtrate is completed, the flow of the gas inside and outside the box body can be realized through the air release valve, and the vacuum degree inside the box body is adjusted.
Preferably, a microporous filter membrane is arranged in the filter.
The filtrate can retain solid and other substances in the liquid on the microporous filter membrane through the microporous filter membrane, so that the filtration is realized.
Preferably, a sealing ring is arranged at the top of the box body.
The sealing ring can enhance the air tightness of the airtight chamber formed by the box body and the box cover.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the sample placement mechanism of the present utility model;
fig. 3 is a schematic view of a filter structure of the present utility model.
Reference numerals in the drawings of the specification include: 1. a case; 101. a clamping groove; 102. a seal ring; 2. a case cover; 201. positioning holes; 3. a sample placement mechanism; 4. a U-shaped support plate; 401. a first groove; 402. a second groove; 5. a support plate; 6. a base; 601. a stabilizing groove; 7. a fixing plate; 701. a through hole; 8. a suction nozzle; 9. a vacuum gauge; 901. a release valve; 10. a test tube; 11. a filter; 1101. a microporous filter membrane; 12. a syringe.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and embodiments:
as shown in fig. 1 to 3, a filtering device for detecting pesticide residues in grains comprises a box body 1 and a box cover 2, wherein a sealing ring 102 is arranged at the top of the box body 1, a clamping groove 101 is arranged at the bottom end inside the box body 1, a sample placement mechanism 3 is installed on the clamping groove 101, the sample placement mechanism 3 comprises a U-shaped supporting plate 4 and a supporting plate 5 fixedly installed at the rear side, a base 6 is placed at the bottom of the U-shaped supporting plate 4, a stabilizing groove 601 is formed in the base 6, a first groove 401 is formed in the middle of the U-shaped supporting plate 4 in a opposite direction, a detachable fixing plate 7 is installed in the first groove 401, a through hole 701 is formed in the fixing plate 7, the stabilizing groove 601 and the through hole 701 vertically correspond to each other and are internally provided with a test tube 10, a second groove 402 is formed in the top of the U-shaped supporting plate 4 in a opposite direction, a suction nozzle 8 and a vacuum gauge 9 positioned below the suction nozzle 8 are arranged on the outer side wall of the box body 1, a positioning hole 201 is formed in the top of the box cover 2, the positioning hole 201 vertically corresponds to the stabilizing groove 601 and the through hole 701, a filter 11 is installed in the positioning hole 201, and a filter 1101 is connected with a filter 1101 and an injector 12 is arranged at the top 12.
When the sample is required to be filtered in batches, the test tube 10 is sequentially placed in the sample placing mechanism 3, the second groove 402 is held by hand to clamp and fix the sample placing mechanism 3 and the clamping groove 101, the filter 11 is arranged in the positioning hole 201 at the top of the box cover 2, the box cover 2 is covered on the top of the box body 1, finally the injector 12 filled with filtrate is connected with the top of the filter 11, the air in the box is pumped by the external vacuum pump through the suction nozzle 8 to realize negative pressure effect in the box, the vacuum degree in the box is adjusted by observing the vacuum gauge 9 and adjusting the air release valve 901, and the push rod of the injector 12 is pushed by the external air pressure to realize simultaneous filtration of a plurality of samples.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (4)
1. A filter equipment for pesticide residue detects in cereal, includes box (1), case lid (2), its characterized in that: the novel syringe comprises a box body (1), and is characterized in that a clamping groove (101) is formed in the bottom end of the box body (1), a sample placement mechanism (3) is arranged on the clamping groove (101), the sample placement mechanism (3) comprises a U-shaped supporting plate (4) and a supporting plate (5) fixedly arranged on the rear side of the U-shaped supporting plate (4), a base (6) is arranged at the bottom of the U-shaped supporting plate (4), a stabilizing groove (601) is formed in the base (6), a first groove (401) is formed in the middle of the U-shaped supporting plate (4) in a facing mode, a detachable fixing plate (7) is arranged in the first groove (401), through holes (701) are formed in the fixing plate (7), the stabilizing groove (601) corresponds to the through holes (701) up and down, test tubes (10) are arranged in the fixing plate, a second groove (402) is formed in the top of the U-shaped supporting plate (4), a suction nozzle (8) and a vacuum gauge (9) arranged below the suction nozzle (8) are arranged on the outer side wall of the box body (1), a locating hole (201) is formed in the top of the box cover (2), a locating hole (201), and the locating hole (201) corresponds to the filter (201), and the locating hole (201) is formed in the filter (11).
2. A filter device for detecting pesticide residues in grains as claimed in claim 1, wherein: and a bleeder valve (901) is arranged on the branch pipe of the vacuum gauge (9).
3. A filter device for detecting pesticide residues in grains as claimed in claim 1, wherein: a microporous filter membrane (1101) is arranged in the filter (11).
4. A filter device for detecting pesticide residues in grains as claimed in claim 1, wherein: the top of the box body (1) is provided with a sealing ring (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320079417.6U CN219897674U (en) | 2023-01-07 | 2023-01-07 | A filter equipment for pesticide residue detects in cereal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320079417.6U CN219897674U (en) | 2023-01-07 | 2023-01-07 | A filter equipment for pesticide residue detects in cereal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219897674U true CN219897674U (en) | 2023-10-27 |
Family
ID=88424952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320079417.6U Active CN219897674U (en) | 2023-01-07 | 2023-01-07 | A filter equipment for pesticide residue detects in cereal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219897674U (en) |
-
2023
- 2023-01-07 CN CN202320079417.6U patent/CN219897674U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |