CN216208998U

CN216208998U - Cereal pesticide residue survey device

Info

Publication number: CN216208998U
Application number: CN202122542276.0U
Authority: CN
Inventors: 杜兰红; 陈宝东; 李宝广
Original assignee: Jizhou District Of Tianjin City Green Food Development Center
Current assignee: Jizhou District Of Tianjin City Green Food Development Center
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-05
Anticipated expiration: 2031-10-21

Abstract

The utility model provides a grain pesticide residue measuring device which comprises a shell, wherein an accommodating cavity is formed in the side wall of the shell, a detachable sample cup is arranged in the accommodating cavity, a crushing knife is arranged in the sample cup, a crushing motor used for driving the crushing knife to rotate is arranged in the shell, the top of the accommodating cavity is open, a hollow liquid collecting pipe is arranged above the opening, the top of the liquid collecting pipe extends to the outer side of the shell, a spherical-shell-shaped filter layer is arranged at the bottom of the liquid collecting pipe, and a driving assembly used for driving the liquid collecting pipe to move up and down in a reciprocating mode is arranged on one side of the liquid collecting pipe. The device for determining the pesticide residue in the grains can quickly collect the solution of the detection sample, and shortens the detection time of pesticide residue.

Description

Cereal pesticide residue survey device

Technical Field

The utility model belongs to the field of pesticide residue detection instruments, and particularly relates to a device for determining pesticide residue in grains.

Background

With the improvement of living standard of people, the food safety problem becomes the focus of attention of people, and the pesticide residue problem in agricultural products in food safety is the important factor in the safety of residents in vegetable baskets. At present, agricultural products, particularly cereals, use exogenous substances such as pesticides, antibiotics and hormones in the planting and production processes, the exogenous substances cause residues on the surface and inside of the cereals, and the excessive residues cause a plurality of safety problems, so that the detection of pesticide residues is necessary.

At present, pesticide residue rapid detection equipment is various, and a general detection flow comprises the steps of firstly crushing a sample into particles, putting the particles into a container, adding a solvent, and then sending liquid dissolved with the solvent into a residual detection kit for analysis. The existing detection process is too complicated, and meanwhile, sample pollution is easily caused in the sample transferring process, so that the accuracy of a detection result is reduced. And the price is high, so that the cost of pesticide detection is increased.

Therefore, we propose a device for measuring pesticide residue on grains to solve the above problems.

Disclosure of Invention

In view of this, the present invention provides a device for measuring pesticide residue in cereal, which is used to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a cereal pesticide residue survey device, which comprises a housin, the lateral wall of casing is provided with the holding chamber, the holding intracavity is provided with detachable sample cup, be provided with broken sword in the sample cup, the inside broken motor that is used for driving broken sword rotation that is provided with of casing, the open-top in holding chamber, the open-ended top is provided with hollow collector tube, the top of collector tube extends to the casing outside, the bottom of collector tube sets up the filter layer of spherical shell form, one side of collector tube is provided with the drive assembly who is used for driving collector tube reciprocating motion from top to bottom.

Further, drive assembly includes two backup pads, two backup pads levels butt joint to form in butt joint department with collector tube matched with joint hole, be provided with the slide bar between backup pad and the casing, the top of slide bar slides and extends to the casing outside, is connected with the spring between the upper surface of backup pad and the top internal surface of casing, the spring cup joints on the slide bar surface.

Furthermore, a driving motor is horizontally arranged in the shell, an output shaft of the driving motor is connected with a first rotating shaft through a coupler, and an eccentric wheel perpendicular to the supporting plate is sleeved on the first rotating shaft.

Furthermore, a shaft sleeve is arranged at the center of the bottom of the sample cup, and an output shaft of the crushing motor is connected with a second rotating shaft matched with the shaft sleeve through a coupling.

Furthermore, the second rotating shaft is a spline shaft, and the shaft sleeve is a spline shaft sleeve.

Furthermore, the top of the liquid collecting pipe is provided with a conical detection port.

Further, be provided with the base on the axle sleeve, evenly install the vertical broken sword of a plurality of, broken sword both sides edging along circumference on the base.

Further, a handle is arranged on the outer side wall of the sample cup.

Compared with the prior art, the utility model has the following advantages:

(1) the device for determining the pesticide residue in the grains can simultaneously realize the operations of crushing, liquid adding, filtering and sampling, avoids the technical problem of detection accuracy reduction caused by transferring samples or detecting solutions, can filter the mixture of dissolved pesticides by arranging the liquid collecting pipe and the filtering layer at the bottom of the liquid collecting pipe, collects the solution and reduces solid residues in the solution.

(2) The device for measuring the pesticide residue in the grains can quickly collect the solution of the detection sample, and shortens the detection time of pesticide residue.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of an apparatus for measuring pesticide residue in grains according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A in FIG. 1;

FIG. 3 is a perspective view of a sample cup;

FIG. 4 is a schematic view of the internal structure of the sample cup;

FIG. 5 is a schematic view showing the internal structure of the grain pesticide residue measuring apparatus according to the present invention in a use state.

Description of reference numerals:

1. a housing; 2. an accommodating cavity; 3. a sample cup; 4. a crushing knife; 5. a crushing motor; 6. a support plate; 7. a slide bar; 8. a spring; 9. a drive motor; 10. an eccentric wheel; 11. a shaft sleeve; 12. a second rotating shaft; 13. a tapered detection port; 14. an opening; 15. a liquid collecting pipe; 16. a filter layer; 17. a handle.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figures 1-5, the grain pesticide residue measuring device integrates the operations of crushing, liquid adding, filtering and sampling, can quickly collect the solution of a detection sample, and shortens the detection time of pesticide residues.

The device for determining the pesticide residue in the grains comprises a shell 1, wherein a containing cavity 2 is formed in the side wall of the shell 1, a sample cup 3 capable of being moved out is arranged in the containing cavity 2, a crushing knife 4 is arranged in the sample cup 3, a crushing motor 5 for driving the crushing knife 4 to rotate is arranged in the shell 1, a shaft sleeve 11 is arranged at the center of the bottom of the sample cup 3, and an output shaft of the crushing motor 5 is connected with a second rotating shaft 12 matched with the shaft sleeve 11 through a coupling. In a preferred embodiment of the present invention, the second rotating shaft 12 is a spline shaft, and the associated shaft sleeve 11 is a spline shaft sleeve 11. Of course, other choices can be made according to the production cost, such as a flat key shaft, a wedge key shaft and the like, and the transmission can be performed by using a chain or a belt.

The filtering and sampling operation in the measuring device is realized by the following structure: the top opening 14 of holding chamber 2, the top of opening 14 is provided with hollow collector tube 15, and the top of collector tube 15 extends to the casing 1 outside, and the bottom of collector tube 15 sets up spherical shell form filter layer 16, and one side of collector tube 15 is provided with the drive assembly who is used for driving collector tube 15 reciprocating motion from top to bottom. Make the collector tube 15 reciprocate through drive assembly, the purpose of downward movement is in order to stretch into the filter layer 16 of spherical shell form to adding the solvent and carrying out the album liquid in the broken sample, and operating personnel stretches into the imbibition pipe to the filter layer 16 of spherical shell form along collector tube 15 in, absorb sample solution and can carry out the testing analysis. When the crushing motor 5 works, the liquid collecting pipe 15 moves upwards under the driving of the driving assembly to prevent mutual interference.

Specifically, drive assembly includes two backup pads 6 in this embodiment, 6 horizontal butt joints of two backup pads to form in butt joint department with collector tube 15 matched with joint hole, be provided with slide bar 7 between backup pad 6 and the casing 1, the top of slide bar 7 slides and extends to the casing 1 outside, horizontal installation has driving motor 9 in the casing 1 still, driving motor 9's output shaft has first pivot through the coupling joint, cup joint the eccentric wheel 10 with backup pad 6 perpendicular setting in the first pivot. The supporting plate 6 drives the liquid collecting pipe 15 to move up and down by driving the rotation of the eccentric wheel 10.

As a preferred embodiment, a spring 8 is connected between the upper surface of the supporting plate 6 and the inner surface of the top of the shell 1, and the spring 8 is sleeved on the surface of the sliding rod 7.

It should be noted that the above driving assembly is only one of the preferred embodiments of the present invention, and an electric telescopic rod or an air cylinder may be used to drive the liquid collecting tube 15 and/or the supporting plate 6 to move up and down.

In addition, in order to facilitate the operator to take the liquid, a tapered detection port 13 is provided at the top of the liquid collecting tube 15.

It should be noted that the shaft sleeve 11 is provided with a base, a plurality of vertical crushing knives 4 are uniformly installed on the base along the circumferential direction, and two sides of each crushing knife 4 are edged.

For the convenience of operation, a handle 17 is attached to the outer side wall of the sample cup 3.

The working process of the utility model is as follows: after a cereal sample to be detected is placed into the sample cup 3, the sample cup 3 is placed into the accommodating cavity 2, the spline shaft sleeve 11 in the sample cup 3 is sleeved on the spline shaft, the crushing motor 5 is started, the crushing cutter 4 is driven to crush the sample, a solvent is placed into the sample cup 3 according to actual conditions, the crushing operation is continued, after the crushing is completed, the driving motor 9 is started to enable the liquid collecting pipe 15 to move downwards, the filter layer 16 is placed below the liquid level, the liquid suction pipe is stretched into the liquid collecting pipe 15 to perform sampling operation, and the detection is performed through other auxiliary test paper or reagent boxes.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cereal pesticide residue survey device which characterized in that: the novel liquid collecting device comprises a housing, wherein a containing cavity is formed in the side wall of the housing, a detachable sample cup is arranged in the containing cavity, a crushing knife is arranged in the sample cup, a crushing motor used for driving the crushing knife to rotate is arranged inside the housing, the top of the containing cavity is open, a hollow liquid collecting pipe is arranged above the opening, the top of the liquid collecting pipe extends to the outside of the housing, a spherical-shell-shaped filter layer is arranged at the bottom of the liquid collecting pipe, and a driving assembly used for driving the liquid collecting pipe to move up and down is arranged on one side of the liquid collecting pipe.

2. The apparatus for measuring pesticide residue in grain according to claim 1, characterized in that: the drive assembly comprises two support plates which are horizontally butted, a joint hole matched with the liquid collecting pipe is formed in the butt joint position, a sliding rod is arranged between the support plates and the shell, the top of the sliding rod slides and extends to the outer side of the shell, a spring is connected between the upper surface of the support plates and the inner surface of the top of the shell, and the spring is sleeved on the surface of the sliding rod.

3. The apparatus for measuring pesticide residue in grain according to claim 2, characterized in that: still horizontal installation has driving motor in the casing, and driving motor's output shaft has first pivot through the coupling joint, has cup jointed the eccentric wheel that sets up with the backup pad is perpendicular in the first pivot.

4. The apparatus for measuring pesticide residue in grain according to claim 1, characterized in that: the bottom center of the sample cup is provided with a shaft sleeve, and an output shaft of the crushing motor is connected with a second rotating shaft matched with the shaft sleeve through a coupler.

5. The apparatus for measuring pesticide residue in grain according to claim 4, wherein: the second rotating shaft is a spline shaft, and the shaft sleeve is a spline shaft sleeve.

6. The apparatus for measuring pesticide residue in grain according to claim 1, characterized in that: the top of the liquid collecting pipe is provided with a conical detection port.

7. The apparatus for measuring pesticide residue in grain according to claim 4, wherein: the shaft sleeve is provided with a base, a plurality of vertical crushing knives are evenly arranged on the base along the circumferential direction, and the two sides of each crushing knife are edged.

8. The apparatus for measuring pesticide residue in grain according to claim 1, characterized in that: the outer side wall of the sample cup is provided with a handle.