CN216386901U - Food pesticide residue detection equipment based on gas chromatograph - Google Patents

Abstract

The utility model relates to the field of detection equipment, in particular to food pesticide residue detection equipment based on a gas chromatograph, which comprises a box body, a sample placing groove and a detection space which are arranged in the box body, and a display screen connected with the box body through a connecting wire; a tray is arranged in the sample placing groove, sliding plates are connected to two side edges of the tray, the tray is arranged in a pulling mode relative to the sample placing groove through the sliding plates, a detection box is arranged in the detection space, a plurality of groups of limiting strips with different heights are arranged in the detection box, and a placing frame is arranged in the limiting strips; the bottom of the display screen is provided with a rotating shaft, and the bottom of the rotating shaft is provided with a display base. The utility model can independently display and control the device, and is convenient for accommodating and processing the detected object and adaptively adjusting the height position of the detected object.

Description

Food pesticide residue detection equipment based on gas chromatograph

Technical Field

The utility model relates to the field of detection equipment, in particular to food pesticide residue detection equipment based on a gas chromatograph.

Background

The gas chromatograph is a chromatographic analysis device using gas as a mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances. After being gasified in the gasification chamber, the sample to be analyzed is carried into the chromatographic column by inert gas (i.e. carrier gas, also called mobile phase), the column contains liquid or solid stationary phase, and each component in the sample tends to form distribution or adsorption equilibrium between the mobile phase and the stationary phase. With the flowing of the carrier gas, the sample components are repeatedly distributed or adsorbed/desorbed in motion for many times, and the components with high distribution concentration in the carrier gas flow out of the chromatographic column firstly, and the components with high distribution concentration in the stationary phase flow out after being distributed. The components flow out of the column and into the detector for measurement, and commonly used detectors include Electron Capture Detectors (ECD), hydrogen flame detectors (FID), Flame Photometric Detectors (FPD), Thermal Conductivity Detectors (TCD), and the like. The gas chromatograph can be generally used for analyzing organic matters with thermal stability and boiling points not more than 500 ℃, such as volatile organic matters, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbons, phthalate esters and the like, has the advantages of rapidness, effectiveness, high sensitivity and the like, and plays an important role in the research of soil organic matters. The sample which can be directly used for gas chromatographic analysis must be gas or liquid, so the soil sample needs to be extracted into a certain solvent by a certain pretreatment method before analysis. Common pretreatment methods include Soxhlet extraction, ultrasonic extraction, oscillation extraction, microwave extraction and the like, and some emerging pretreatment methods such as solid-phase extraction, solid-phase microextraction, accelerated solvent extraction and supercritical extraction are widely used.

The existing detection equipment has the problems that independent display control is not convenient to carry out on the device, storage and treatment are not convenient to carry out on the detection object, adaptability adjustment is not convenient to carry out on the height position of the detection object, the detection box is not convenient to close and open, and the lifting device is not convenient to prevent dust and treat the convenient degree.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the food pesticide residue detection equipment based on the gas chromatograph, which can independently display and control the device, and is convenient for accommodating and processing the detection object and adaptively adjusting the height position of the detection object.

In order to solve the technical problem, the technical scheme adopted by the utility model is as follows: a food pesticide residue detection device based on a gas chromatograph comprises a box body, a sample placing groove and a detection space which are arranged in the box body, and a display screen connected with the box body through a connecting line; a tray is arranged in the sample placing groove, sliding plates are connected to two side edges of the tray, the tray is arranged in a pulling mode relative to the sample placing groove through the sliding plates, a detection box is arranged in the detection space, a plurality of groups of limiting strips with different heights are arranged in the detection box, and a placing frame is arranged in the limiting strips; the bottom of the display screen is provided with a rotating shaft, and the bottom of the rotating shaft is provided with a display base.

Further, the relative detection space of detection case sets up for the pull, and the position that the box is close to the detection chamber door is equipped with starting and stopping mechanism, and starting and stopping mechanism includes manual axis, rotor plate, spring and conflict board, and the manual axis rotates and sets up on the box, and rotor plate one end links to each other with the manual axis, and other end coupling spring, the other end and the conflict board of spring link to each other, and the conflict board sticiss on the detection chamber door when rotating to the detection chamber door.

Furthermore, the box body is provided with heat dissipation holes, and dust screens are arranged above the heat dissipation holes through vertical plates.

Furthermore, a plurality of hollow grooves which are arranged at equal intervals are formed in the placing frame.

Further, spacing is equipped with 3 groups along detection case inner wall direction of height.

Furthermore, the opening and closing mechanism is symmetrically provided with two groups by taking the central axis of the detection box door as a central line.

The utility model has the beneficial effects that: through the setting of connecting wire, can satisfy the independent control to the display screen to can carry out the adaptability to the angle of display screen through the setting of axis of rotation and turn to the regulation. Simultaneously, can place a plurality of samples through the setting of sample standing groove and accomodate to can be convenient for pull out the operation to the slip of tray through the setting of sliding plate.

The food pesticide residues to be detected are placed at the top of the placing frame, and a proper limiting strip can be selected to be inserted into the placing frame, so that the adaptability adjustment of the height position of the detected object is realized. Simultaneously, the user can be through rotating manual shaft to this can drive the rotor plate and rotate, thereby makes the rotor plate of elastic spring tip paste closely fixedly to the detection case, and the user of being convenient for is to the opening and the closed operation of device.

The dustproof net is placed on the inner side of the fixing plate, so that the dustproof effect on the radiating holes can be effectively improved, the dustproof net can be conveniently detached and cleaned, and a user can conveniently operate and use the device part.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

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

FIG. 3 is a third schematic structural view of the present invention;

FIG. 4 is a schematic view of the structure of the detection box;

in the figure: 1. a box body; 2. a connecting wire; 3. a display screen; 4. a rotating shaft; 5. a display base; 6. a sample placement groove; 7. a tray; 8. a sliding plate; 9. a detection box; 10. a limiting strip; 11. placing a rack; 12. hollowing out the grooves; 13. a touch plate; 14. a spring; 15. a rotating plate; 16. a manual shaft; 17. heat dissipation holes; 18. a vertical plate; 19. a fixing plate; 20. a dust screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The embodiment discloses food pesticide residue detection equipment based on a gas chromatograph, which comprises a box body 1, a sample placing groove 6 and a detection space which are arranged in the box body 1, and a display screen 3 connected with the box body 1 through a connecting wire 2, as shown in fig. 1-3.

Be equipped with tray 7 in the sample standing groove, the tray 7 side is connected with sliding plate 8, and tray 7 realizes the pull setting of relative sample standing groove 6 through sliding plate 8. Tray 7 and sample placement groove 6 can place a plurality of samples and accomodate to can be convenient for pull out the operation to the slip of tray 7 through the setting of sliding plate 8. The user can be through placing the food farming residue that needs to detect in the top of rack 11 to can select suitable spacing 10 to alternate into rack 11, with this realization to the adaptability regulation of detecting the thing height position.

Be equipped with detection case 9 in the detection space, be equipped with the spacing 10 of multiunit difference in height in the detection case 9, be equipped with rack 11 in the spacing 10. The relative detection space of detection case 9 sets up for the pull, and the position that the box is close to the detection chamber door is equipped with starting and stopping mechanism, and starting and stopping mechanism includes manual axis 16, rotor plate 15, spring 14 and conflict board 13, and manual axis 16 rotates and sets up on box 1, and rotor plate 15 one end links to each other with manual axis 16, other end coupling spring 14, and spring 14's the other end links to each other with conflict board 13, and conflict board 13 sticiss on the detection chamber door when rotating to the detection chamber door. The contact plate 13 and the rotating plate 15 form an elastic structure through a spring 14, the rotating plate 15 and the detection box 9 form a rotating structure through a manual shaft 16, and the detection box 9 is in sliding connection with the box body 1; the user can rotate the manual shaft 16 to this can drive the rotating plate 15 and rotate, thereby makes the rotating plate 15 of elastic spring 14 tip paste closely fixedly to detection case 9, and the user of being convenient for is to the opening and the closed operation of device.

In this embodiment, the bottom of the display screen 3 is provided with a rotating shaft 4, and the bottom of the rotating shaft is provided with a display base 5. The display screen 3 is electrically connected with the box body 1 through a connecting wire 2, and the display screen 3 and the display base 5 form a rotating structure through a rotating shaft 4; the user can satisfy the independent control to display screen 3 through the setting of connecting wire 2 to can carry out the adaptability to the angle of display screen 3 through the setting of axis of rotation 4 and turn to the regulation.

The box body 1 is provided with heat dissipation holes 17, and in order to improve the dustproof effect on the heat dissipation holes 17, a dustproof net 20 is arranged above the heat dissipation holes 17 through a vertical plate 18. In order to facilitate the detachment and cleaning of the dust screen 20, the vertical plate 18 is provided with a fixing plate 19, and two ends of the dust screen 20 are clamped on the fixing plate 19.

In this embodiment, the rack is provided with a plurality of hollow-out grooves arranged at equal intervals.

In this embodiment, spacing is equipped with 3 groups along detection case inner wall direction of height.

In this embodiment, the opening and closing mechanism is symmetrically provided with two sets of the opening and closing mechanism by taking the central axis of the detection box door as a central line.

The working principle of the embodiment is as follows:

through the setting of connecting wire 2, can satisfy the independent control to display screen 3 to can carry out the adaptability to the angle of display screen 3 through the setting of axis of rotation 4 and turn to the regulation. Meanwhile, a plurality of samples can be placed and stored by the arrangement of the sample placement groove 6, and the sliding pull-out operation of the tray 7 can be facilitated by the arrangement of the sliding plate 8.

Then, the food pesticide residues to be detected are placed at the top of the placing frame 11, and a proper limiting strip 10 can be selected to penetrate into the placing frame 11, so that the height position of the detected object can be adaptively adjusted. Meanwhile, a user can rotate the manual shaft 16 to drive the rotating plate 15 to rotate, so that the rotating plate 15 at the end of the elastic spring 14 is attached and fixed to the detection box 9, and the user can open and close the device conveniently.

Finally, the user can place the dust screen 20 through the inboard at fixed plate 19 to this can effectively promote the dustproof effect to louvre 17, and can be convenient for to the dismantlement of dust screen 20 clean, the user of being convenient for is to the operation of device part and is used.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (6)

1. The utility model provides a food farming residue check out test set based on gas chromatograph which characterized in that: the device comprises a box body, a sample placing groove and a detection space which are arranged in the box body, and a display screen which is connected with the box body through a connecting wire; a tray is arranged in the sample placing groove, sliding plates are connected to two side edges of the tray, the tray is arranged in a pulling mode relative to the sample placing groove through the sliding plates, a detection box is arranged in the detection space, a plurality of groups of limiting strips with different heights are arranged in the detection box, and a placing frame is arranged in the limiting strips; the bottom of the display screen is provided with a rotating shaft, and the bottom of the rotating shaft is provided with a display base.

2. The gas chromatograph-based food pesticide residue detection apparatus according to claim 1, wherein: the relative detection space of detection case sets up for the pull, and the position that the box is close to the detection chamber door is equipped with starting and stopping mechanism, and starting and stopping mechanism includes manual axis, rotor plate, spring and conflict board, and the manual axis rotation sets up on the box, and rotor plate one end links to each other with the manual axis, and other end coupling spring, the other end and the conflict board of spring link to each other, and the conflict board sticiss on the detection chamber door when rotating to the detection chamber door.

3. The gas chromatograph-based food pesticide residue detection apparatus according to claim 1, wherein: the box body is provided with heat dissipation holes, and a dust screen is arranged above the heat dissipation holes through vertical plates.

4. The gas chromatograph-based food pesticide residue detection apparatus according to claim 1, wherein: the rack is provided with a plurality of hollow grooves which are arranged at equal intervals.

5. The gas chromatograph-based food pesticide residue detection apparatus according to claim 1, wherein: the spacing is equipped with 3 groups along detection case inner wall direction of height.

6. The gas chromatograph-based food pesticide residue detection apparatus according to claim 2, wherein: the opening and closing mechanism is symmetrically provided with two groups by taking the central axis of the detection box door as a central line.

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