CN210465249U - Quick detection device of pesticide residue omethoate in food - Google Patents
Quick detection device of pesticide residue omethoate in food Download PDFInfo
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- CN210465249U CN210465249U CN201920163774.4U CN201920163774U CN210465249U CN 210465249 U CN210465249 U CN 210465249U CN 201920163774 U CN201920163774 U CN 201920163774U CN 210465249 U CN210465249 U CN 210465249U
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Abstract
The utility model relates to a rapid detection device for pesticide residual omethoate in food, which comprises a crushing unit, a rolling unit, a filtering unit and a testing unit which are arranged from top to bottom in sequence; the crushing unit comprises a shell, a cylindrical accommodating cavity is formed in the shell and used for accommodating food to be crushed, a feeding hole and a discharging hole are formed in the upper wall surface and the lower wall surface of the shell respectively, and the crushing unit further comprises a crushing knife and a motor; the rolling unit comprises a machine body, an inlet communicated with a discharge port on the upper side of the machine body, an outlet arranged on the lower side of the machine body, and two rolling rollers arranged at intervals in an inner cavity; the filter unit comprises a shell, the upper side of the shell is provided with an inlet, the lower side of the shell is provided with a liquid outlet, and the upper part of the inner cavity is provided with a filter element; the detection unit comprises a protection box, a spectrophotometer positioned on one side of the filtering unit is arranged in the protection box, and the spectrophotometer is connected with the liquid collecting pool through a liquid conveying pipe. The utility model discloses can realize remaining omethoate on the short-term test food.
Description
Technical Field
The utility model relates to a quick detection device of pesticide residual oxygen dimethoate in food.
Background
Omethoate is mainly used for preventing and controlling crop pests such as cotton, wheat, fruit trees and the like, belongs to systemic organophosphorus insecticide and acaricide, can be absorbed into plant bodies by stems and leaves of plants and is transmitted to all parts of the plants, so that pesticide residues are easily caused. In the production process of vegetables, omethoate belongs to prohibited pesticides, the maximum residual amount of the omethoate in the vegetables and fruits is only 0.2mg/kg specified in international GB2763-2014, and the omethoate is not specified in the newly-released national standard GB 2763-2014. However, due to the broad spectrum and effectiveness of omethoate, some vegetable growers still use the omethoate illegally, so that the research on how to rapidly and safely detect the trace omethoate is very necessary.
At present, a relatively mature detection method is still physicochemical detection, is accurate, can detect various pesticides at one time, but has the disadvantages of long time consumption, complex steps, high cost and difficult popularization. Therefore, Li Wen et al, in the fifth phase of volume 33 of the journal of food science and technology, disclose a method for detecting omethoate pesticide residue, which rapidly detects pesticide residue omethoate in food by a spectrophotometer. However, the method is complicated in sample preparation and difficult to realize rapid detection.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a quick detection device of pesticide residue oxygen dimethoate in food.
The utility model discloses a quick detection device of pesticide residue oxygen dimethoate in food's technical scheme is:
a rapid detection device for pesticide residue omethoate in food comprises a crushing unit, a rolling unit, a filtering unit and a testing unit which are sequentially arranged from top to bottom;
the crushing unit comprises a shell, a cylindrical accommodating cavity is formed in the shell and is used for accommodating food to be crushed, a feeding hole and a discharging hole which are communicated with the cylindrical accommodating cavity are formed in the upper wall surface and the lower wall surface of the shell respectively, and the crushing unit further comprises a crushing knife and a motor, wherein the crushing knife is arranged in the cylindrical accommodating cavity, and the motor drives the crushing knife to rotate;
the rolling unit comprises a machine body with an inner cavity, the upper side of the machine body is provided with an inlet communicated with a discharge hole of the crushing unit, the lower side of the machine body is provided with an outlet, and two rolling rollers arranged at intervals are arranged in the inner cavity;
the filtering unit comprises a shell, the upper side of the shell is provided with an inlet which is respectively communicated with an outlet of the rolling unit and an inner cavity, the lower side of the shell is provided with a liquid outlet which is communicated with the inner cavity, the upper part of the inner cavity is provided with a filter element, and the inner cavity on the lower side of the filter element forms a liquid collecting pool for containing filtered liquid to be detected;
the detection unit comprises a protection box, a spectrophotometer positioned on one side of the filtering unit is arranged in the protection box, and the spectrophotometer is connected with the liquid collecting pool through a liquid conveying pipe.
Further, the rolling gap between the two rolling rollers is positioned right below the discharge port of the crushing unit.
Further, the inner cavity of the rolling unit is of a necking structure at the upper side and the lower side, and a wide neck section is arranged at the position of the rolling roller in the inner cavity.
Furthermore, a switch for controlling the opening and closing of the outlet is arranged on the liquid outlet.
Further, the detection device also comprises a water pump for pumping deionized water into the crushing unit.
The beneficial effects are that: the utility model discloses a during the quick detection device of pesticide residue omethoate uses in food, food gets into after crushing unit and rolls the unit, and the food piece after rolling is made after filtering the unit and is waited to detect liquid, waits to detect on the liquid instils into the spectrophotometer among the detecting element, confirms to have the oxygen-free dimethoate according to the spectrophotometer test and with standard reagent's comparison result to accomplish omethoate detection achievement. The utility model discloses a quick detection device of pesticide residue omethoate in food can realize remaining omethoate on the short-term test food.
Drawings
FIG. 1 is a schematic view of the device for rapidly detecting omethoate pesticide residue in food of the present invention;
FIG. 2 is a schematic view of a spectrophotometer in the rapid detection device for omethoate pesticide residue in food of the present invention;
in the figure: 01-a crushing unit; 02-rolling unit; 03-a filtration unit; 04-a detection unit; 05-a water pump; 1-a shell; 2-crushing cutter; 3-body; 4-rolling roller; 5-a filter element; 6-a liquid collecting tank; 7-an infusion tube; 8-a spectrophotometer; 81-display screen; 82-accommodating groove.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a quick detection device of pesticide residue oxygen dimethoate's in food embodiment one, as shown in FIG. 1, include from last to down crushing unit 01 that sets gradually, roll unit 02, filter unit 03 and test unit. Food with residual omethoate is crushed by the crushing unit 01 and then enters the rolling unit 02, food scraps after rolling are filtered by the filtering unit 03 to prepare liquid to be detected, the liquid to be detected is dripped onto a spectrophotometer 8 in the detection unit 04, and the existence of the omethoate is determined according to the test of the spectrophotometer 8 and the comparison result of the spectrophotometer 8 and a standard reagent, so that omethoate detection work is completed. It should be noted that the detection principle adopted in the present embodiment is the same as the detection method of the pesticide residue in the fruit pesticide residue in the fifth phase of 33 of the food science and technology journal of livingway, etc., so the detection principle in the present embodiment is not described in detail.
Specifically, the crushing unit 01 includes a rectangular housing 1, and a cylindrical receiving cavity is formed in the rectangular housing 1 and used for receiving food to be crushed. The upper wall surface and the lower wall surface of the rectangular shell 1 are respectively provided with a feed inlet and a discharge outlet which are communicated with the cylindrical containing cavity. The crushing unit 01 further comprises a crushing blade 2 disposed in the cylindrical receiving cavity and a motor for driving the crushing blade 2 to rotate. The crushing blade 2 in this embodiment is of an impeller type structure, and the impeller type crushing blade 2 includes three blades circumferentially spaced apart from each other. The end of the single blade is at a small distance from the wall of the housing chamber so that the crushing blade 2 can crush the food sufficiently.
The rolling unit 02 includes a body 3 having an inner cavity, an inlet communicating with a discharge port of the crushing unit 01 is provided on an upper side of the body 3, and an outlet is provided on a lower side of the body 3. The inner chamber is provided with two rolling rollers 4 that the interval set up, and two rolling gaps between the rolling roller 4 are located crushing unit 01 discharge gate under to the food that gets into from crushing unit 01 smashes the thing and can get into two between the rolling roller 4. In this embodiment, the inner cavity is a necking structure on the upper and lower sides, and the position in the inner cavity where the rolling roller 4 is arranged is a wide neck section.
The filtering unit 03 comprises a shell with an inner cavity, the upper side of the shell is provided with an inlet communicated with the outlet of the rolling unit 02 and the inner cavity respectively, and the lower side of the shell is provided with a liquid outlet communicated with the inner cavity. The upper portion of inner chamber is provided with filter core 5, and the inner chamber of filter core 5 downside forms the liquid collecting tank 6 that holds the liquid that awaits measuring after filtering. The liquid outlet is provided with a switch for controlling the opening and closing of the outlet.
As shown in fig. 2, the detection unit 04 includes a protection box, a spectrophotometer 8 located on one side of the filter unit 03 is provided in the protection box, and the spectrophotometer 8 is connected to the liquid collection tank 6 through a liquid transport tube 7. Be provided with holding tank 81 and display screen 82 in the spectrophotometer 8, set up the light screen on the holding tank, the sample that awaits measuring is arranged in the holding tank and is detected. The structure of the spectrophotometer in this embodiment is the same as that of the spectrophotometer in the related art, and the structure of the spectrophotometer in this embodiment will not be described in detail.
In this embodiment, the device for rapidly detecting omethoate pesticide residue in food further includes a water pump 05 for pumping deionized water into the crushing unit 01. The water pump 05 is arranged on the upper side of the rolling unit 02 body 3 and is communicated with the crushing unit 01 through a water pipe.
The utility model discloses a quick detection device theory of operation of pesticide residue oxygen dimethoate in food is: food to be measured is put into the housing 1 of the crushing unit 01 and crushed by the crushing blade 2, and in the process, the water pump pumps deionized water into the housing 1. The food pieces enter the rolling unit 02 and are further rolled and crushed by the rolling roller 4 in the rolling unit 02. The finer food fragments are filtered by the filter element 5 of the filter unit 03 to form the liquid to be tested. The liquid to be detected is conveyed into a spectrophotometer 8 in the detection unit 04 by controlling a switch on a liquid outlet of the filter unit 03, and the existence of omethoate is determined according to the test of the spectrophotometer 8 and the comparison result of the spectrophotometer 8 and a standard reagent, so that the omethoate detection work is completed.
The utility model discloses a quick detection device of pesticide residue oxygen dimethoate's in food embodiment two, with the difference part of quick detection device of pesticide residue oxygen dimethoate's in food embodiment one, do not set up the water pump in the quick detection device of pesticide residue oxygen dimethoate in the food in this embodiment. The rest is the same as the first embodiment, and is not described again.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a quick detection device of pesticide residue oxygen dimethoate in food which characterized in that: the grinding device comprises a grinding unit, a rolling unit, a filtering unit and a testing unit which are sequentially arranged from top to bottom;
the crushing unit comprises a shell, a cylindrical accommodating cavity is formed in the shell and is used for accommodating food to be crushed, a feeding hole and a discharging hole which are communicated with the cylindrical accommodating cavity are formed in the upper wall surface and the lower wall surface of the shell respectively, and the crushing unit further comprises a crushing knife and a motor, wherein the crushing knife is arranged in the cylindrical accommodating cavity, and the motor drives the crushing knife to rotate;
the rolling unit comprises a machine body with an inner cavity, the upper side of the machine body is provided with an inlet communicated with a discharge hole of the crushing unit, the lower side of the machine body is provided with an outlet, and two rolling rollers arranged at intervals are arranged in the inner cavity;
the filtering unit comprises a shell, the upper side of the shell is provided with an inlet which is respectively communicated with an outlet of the rolling unit and an inner cavity, the lower side of the shell is provided with a liquid outlet which is communicated with the inner cavity, the upper part of the inner cavity is provided with a filter element, and the inner cavity on the lower side of the filter element forms a liquid collecting pool for containing filtered liquid to be detected;
the detection unit comprises a protection box, a spectrophotometer positioned on one side of the filtering unit is arranged in the protection box, and the spectrophotometer is connected with the liquid collecting pool through a liquid conveying pipe.
2. The device for rapidly detecting the omethoate pesticide residue in the food as claimed in claim 1, wherein: the rolling gap between the two rolling rollers is positioned right below the discharge port of the crushing unit.
3. The device for rapidly detecting the omethoate pesticide residue in the food as claimed in claim 2, wherein: the upper and lower both sides of the inner chamber of the rolling unit are necking down structures, and the position of the inner chamber in which the rolling roller is arranged is a wide neck section.
4. The device for rapidly detecting the residual omethoate in the food as the pesticide according to any one of claims 1 to 3, is characterized in that: and a switch for controlling the opening and closing of the outlet is arranged on the liquid outlet.
5. The device for rapidly detecting the residual omethoate in the food as the pesticide according to any one of claims 1 to 3, is characterized in that: the detection device also comprises a water pump for pumping deionized water into the crushing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163774.4U CN210465249U (en) | 2019-01-30 | 2019-01-30 | Quick detection device of pesticide residue omethoate in food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163774.4U CN210465249U (en) | 2019-01-30 | 2019-01-30 | Quick detection device of pesticide residue omethoate in food |
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| Publication Number | Publication Date |
|---|---|
| CN210465249U true CN210465249U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920163774.4U Active CN210465249U (en) | 2019-01-30 | 2019-01-30 | Quick detection device of pesticide residue omethoate in food |
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| CN (1) | CN210465249U (en) |
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- 2019-01-30 CN CN201920163774.4U patent/CN210465249U/en active Active
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