Microwave extraction device for pesticide and veterinary drug residue detection pretreatment in animal-derived food

Abstract

The utility model discloses a microwave extraction device for pesticide and veterinary drug residue detection pretreatment in animal-derived food, which belongs to the technical field of microwave extraction equipment and comprises a microwave box, a microwave generator arranged on the inner wall of the microwave box, a placing mechanism arranged in the microwave box, a beaker placed in the placing mechanism and a top cover inserted into the top of the beaker. An extraction mechanism is arranged at the top of the microwave box, and an auxiliary mechanism is arranged in the beaker. The beaker has the beneficial effects that the mounting ring is arranged outside the connecting pipe, the stirring blades are fixedly connected to the outer wall of the mounting ring, and a solution in the beaker is stirred through the stirring blades, so that the solution in the beaker is heated more uniformly; the mounting ring is slidably connected to the outer wall of the connecting pipe, and the power assembly drives the mounting ring to drive the stirring blades to move up and down, so that the heating uniformity of the solution in the beaker is further improved; the electric push rod drives the lifting plate to drive the connecting pipe, the top cover, the stirring blades and the like to move upwards, so that the beaker is convenient to take and place.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave extraction equipment, in particular to a microwave extraction device for pre-treatment of pesticide and veterinary drug residue detection in animal-derived food. Background Art

[0002] Animal-derived foods refer to all edible animal tissues, eggs and milk, including meat and its products, aquatic animal products, etc. In order to improve food safety, pesticide and veterinary drug residues need to be tested before processing. Microwave energy is quickly converted into heat energy, causing the temperature inside the cells to rise rapidly. When the pressure inside the cells exceeds the cell's tolerance, the cells will rupture, and the effective ingredients will flow out of the cells and dissolve in the extraction medium at a lower temperature. The extracted components can then be obtained through further filtration and separation. Therefore, microwave extraction devices are widely used in the detection of pesticide and veterinary drug residues in animal-derived foods.

[0003] After searching, the Chinese patent announcement number CN212722318U is found, which discloses a microwave extraction device for pre-detection of pesticide and veterinary drug residues in animal-derived food. The microwave extraction device for pre-detection of pesticide and veterinary drug residues in animal-derived food drives the extraction beaker to rotate through the coordinated use of a motor and a turntable, so that the extraction beaker is heated more evenly and the extraction efficiency is higher. The microwave extraction device for pre-detection of pesticide and veterinary drug residues in animal-derived food does not affect the normal use of the first connecting tube and the extraction beaker through the coordinated use of an inner ring, an outer ring and a ball, and the additional hand-tightened bolt ensures the stability of the position of the extraction beaker; the microwave extraction device for pre-detection of pesticide and veterinary drug residues in animal-derived food is convenient for taking out the extraction beaker and cleaning the extraction beaker through the design of a groove, and the additional sliding rod and annular groove improve the stability of the turntable when rotating.

[0004] However, the liquid inside the beaker heats up more slowly and may be heated unevenly, affecting the extraction results. Utility Model Content

[0005] The purpose of the utility model is to provide a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food comprises a microwave box, a partition is fixedly connected between the inner walls of the microwave box, a microwave generator is arranged on the inner wall of the microwave box, a placement mechanism is arranged in the microwave box, a beaker is placed in the placement mechanism, a top cover is plugged on the top of the beaker, an extraction mechanism is arranged on the top of the microwave box, the extraction mechanism comprises an air inlet pipe and a connecting pipe, the connecting pipe passes through the top cover and extends into the beaker, an auxiliary mechanism is arranged in the beaker, the auxiliary mechanism comprises a mounting ring slidably connected to the outer wall of the connecting pipe through an elastic member, a plurality of stirring blades are fixedly connected to the outer wall of the mounting ring, the auxiliary mechanism also comprises a power component for driving the mounting ring to move up and down, and the connecting pipe is slidably connected to the inner wall of the air inlet pipe and moves up and down along the air inlet pipe, and the bottom of the connecting pipe is airtight.

[0008] Preferably, the elastic member comprises a limiting ring, the limiting ring is fixedly connected to the bottom of the connecting pipe, and a spring is connected between the limiting ring and the mounting ring.

[0009] Preferably, a connecting rod is fixedly connected to the top of the mounting ring, a first wedge block is fixedly connected to the other end of the connecting rod, and a second wedge block matching the first wedge block is fixedly connected to the bottom of the top cover.

[0010] Preferably, the connecting tube is rotatably connected to the top cover, an electric push rod is fixedly connected to the top of the microwave box, the telescopic end of the electric push rod is fixedly connected to a lifting plate located in the microwave box, and the lifting plate is fixedly connected to the outside of the connecting tube.

[0011] Preferably, the placement mechanism includes a stepper motor fixedly connected to the bottom wall of the microwave box, the stepper motor is located below the partition, the output end of the stepper motor is fixedly connected to a turntable located above the partition, a placement groove is provided on the top of the turntable, and the beaker is placed in the placement groove.

[0012] Preferably, the extraction mechanism also includes a fixed base fixedly connected to the top of the microwave box, a condenser is fixedly connected to the fixed base, the front end bottom of the condenser is fixedly connected to the air inlet pipe, the outer wall of the connecting pipe is provided with a plurality of air inlet holes located in the beaker, the rear end of the condenser is fixedly connected to the liquid outlet pipe, the rear side of the microwave box is fixedly connected to an extension plate, the top of the extension plate is fixedly connected to a liquid storage bottle, and the liquid storage bottle is located below the liquid outlet pipe.

[0013] The beneficial effects are: a mounting ring is arranged on the outside of the connecting tube, and a stirring blade is fixedly connected to the outer wall of the mounting ring, and the solution in the beaker is stirred by the stirring blade, so that the solution in the beaker is heated more evenly; the mounting ring is slidably connected to the outer wall of the connecting tube, and the mounting ring can be driven by a power component to drive the stirring blade to move up and down, thereby further improving the uniformity of heating of the solution in the beaker; the connecting tube is slidably connected to the air inlet pipe, and the lifting plate is driven by an electric push rod to drive the connecting tube, the top cover and the stirring blade to move upward, thereby facilitating the taking and placing of the beaker.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to the utility model;

[0018] Figure 3 It is a front view of the internal structure of a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of a beaker of a microwave extraction device for pre-treatment of pesticide and veterinary drug residue detection in animal-derived food according to the utility model;

[0020] Figure 5 It is a right view of a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to the utility model.

[0021] The description of the accompanying drawings is as follows: 1. Microwave box; 101. Partition; 2. Microwave generator; 3. Placing mechanism; 301. Stepping motor; 302. Turntable; 4. Beaker; 5. Top cover; 6. Extraction mechanism; 601. Fixed seat; 602. Condenser; 603. Air inlet pipe; 604. Connecting pipe; 605. Liquid outlet pipe; 606. Extension plate; 607. Liquid storage bottle; 7. Auxiliary mechanism; 701. Mounting ring; 702. Stirring blade; 703. Limiting ring; 704. Spring; 705. Connecting rod; 706. First wedge block; 707. Second wedge block; 708. Electric push rod; 709. Lifting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 5 As shown, a microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food comprises a microwave box 1, a door is hingedly connected to the front side of the microwave box 1, a partition 101 is bolted between the inner walls of the microwave box 1, a microwave generator 2 is arranged on the inner wall of the microwave box 1, and the microwave generator 2 is located above the partition 101;

[0026] A placement mechanism 3 is provided in the microwave box 1, and the placement mechanism 3 includes a stepper motor 301 bolted to the bottom wall of the microwave box 1, the stepper motor 301 is located below the partition 101, and the output end of the stepper motor 301 is fixedly connected to a turntable 302 located above the partition 101, a placement groove is provided on the top of the turntable 302, a protective pad is provided on the inner wall of the placement groove, a beaker 4 is placed in the placement groove, and a top cover 5 is plugged on the top of the beaker 4;

[0027] An extraction mechanism 6 is provided on the top of the microwave box 1. The extraction mechanism 6 includes a fixing seat 601 bolted to the top of the microwave box 1. A condenser 602 arranged obliquely is fixedly connected to the fixing seat 601. The condenser 602 is a prior art and will not be described in detail. An air inlet pipe 603 is fixedly connected to the bottom of the front end of the condenser 602. A connecting pipe 604 is slidably connected inside the air inlet pipe 603. The connecting pipe 604 passes through the top cover 5 and extends into the beaker 4. The connecting pipe 604 is rotatably connected to the top cover 5. The bottom of the connecting pipe 604 is airtight. A plurality of air inlet holes are provided on the outer wall of the connecting pipe 604. The air inlet holes are located above the liquid level in the beaker 4. A liquid outlet pipe 605 is fixedly connected to the rear end of the condenser 602. An extension plate 606 is bolted to the rear side of the microwave box 1. A liquid storage bottle 607 is fixedly connected to the top of the extension plate 606. The liquid storage bottle 607 is located below the liquid outlet pipe 605.

[0028] An auxiliary mechanism 7 is arranged in the beaker 4, and the auxiliary mechanism 7 includes a mounting ring 701 which is slidably connected to the outer wall of the connecting tube 604, and a plurality of stirring blades 702 are fixedly connected to the outer wall of the mounting ring 701, and the solution in the beaker 4 is stirred by the stirring blades 702 to make it heat more evenly. A limiting ring 703 is fixedly connected to the bottom of the connecting tube 604, and a spring 704 is connected between the limiting ring 703 and the mounting ring 701. A connecting rod 705 is fixedly connected to the top of the mounting ring 701, and a first wedge block 706 is fixedly connected to the other end of the connecting rod 705, and a second wedge block 707 which cooperates with the first wedge block 706 is fixedly connected to the bottom of the top cover 5. An electric push rod 708 is fixedly connected to the top of the microwave box 1, and the telescopic end of the electric push rod 708 is fixedly connected to a lifting plate 709 located in the microwave box 1, and the lifting plate 709 is fixedly connected to the outside of the connecting tube 604.

[0029] Working principle: When in use, start the stepper motor 301 and the microwave generator 2, the stepper motor 301 drives the turntable 302 to drive the beaker 4 and the top cover 5 to rotate, and the top cover 5 will drive the second wedge block 707 to rotate at the same time, when the second wedge block 707 contacts the first wedge block 706, the first wedge block 706 moves downward under the pressure of the second wedge block 707, when the second wedge block 707 separates from the first wedge block 706, the first wedge block 706 is reset under the action of the elastic force of the spring 704, so that the mounting ring 701 drives the stirring The stirring blade 702 moves up and down to stir the solution in the beaker 4, so that the solution in the beaker 4 is heated more evenly. The evaporated gas in the beaker 4 enters the connecting tube 604 through the air inlet hole opened on the outer wall of the connecting tube 604, and then enters the condenser 602 through the air inlet pipe 603 to condense into liquid, and flows into the liquid storage bottle 607 for storage. When the beaker 4 needs to be taken out, the lifting plate 709 is driven by the electric push rod 708 to drive the connecting tube 604, the top cover 5 and the stirring blade 702 to move upward, so that there is enough space between the beaker 4 and the top cover 5.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food, comprising a microwave box, a partition is fixedly connected between the inner walls of the microwave box, a microwave generator is arranged on the inner wall of the microwave box, a placement mechanism is arranged in the microwave box, a beaker is arranged in the placement mechanism, a top cover is plugged on the top of the beaker, an extraction mechanism is arranged on the top of the microwave box, the extraction mechanism comprises an air inlet pipe and a connecting pipe, the connecting pipe passes through the top cover and extends into the beaker, characterized in that: An auxiliary mechanism is arranged in the beaker, and the auxiliary mechanism includes a mounting ring which is slidably connected to the outer wall of the connecting pipe through an elastic member, and a plurality of stirring blades are fixedly connected to the outer wall of the mounting ring. The auxiliary mechanism also includes a power component for driving the mounting ring to move up and down. The connecting pipe is slidably connected to the inner wall of the air inlet pipe and will move up and down along the air inlet pipe, and the bottom of the connecting pipe is airtight.

2. The microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to claim 1, characterized in that: The elastic member comprises a limiting ring, the limiting ring is fixedly connected to the bottom of the connecting pipe, and a spring is connected between the limiting ring and the mounting ring.

3. The microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to claim 1, characterized in that: The top of the mounting ring is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a first wedge block, and the bottom of the top cover is fixedly connected with a second wedge block that matches the first wedge block.

4. The microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to claim 1, characterized in that: The connecting tube is rotatably connected to the top cover, an electric push rod is fixedly connected to the top of the microwave box, a telescopic end of the electric push rod is fixedly connected to a lifting plate located in the microwave box, and the lifting plate is fixedly connected to the outside of the connecting tube.

5. The microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to claim 1, characterized in that: The placement mechanism includes a stepper motor fixedly connected to the bottom wall of the microwave box, the stepper motor is located below the partition, the output end of the stepper motor is fixedly connected to a turntable located above the partition, a placement groove is provided on the top of the turntable, and the beaker is placed in the placement groove.

6. The microwave extraction device for pre-treatment of pesticide and veterinary drug residues in animal-derived food according to claim 1, characterized in that: The extraction mechanism also includes a fixing base fixedly connected to the top of the microwave box, a condenser is fixedly connected to the fixing base, the front end bottom of the condenser is fixedly connected to the air inlet pipe, the outer wall of the connecting pipe is provided with a plurality of air inlet holes located in the beaker, the rear end of the condenser is fixedly connected to a liquid outlet pipe, the rear side of the microwave box is fixedly connected to an extension plate, the top of the extension plate is fixedly connected to a liquid storage bottle, and the liquid storage bottle is located below the liquid outlet pipe.

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