Rapid detection device for pesticide residues in food

Abstract

The utility model relates to the technical field of food safety detection, in particular to a rapid detection device for pesticide residues in food, which comprises a rack, a crushing mechanism arranged on the rack and used for crushing and extruding a sample, and a detection box arranged on the rack and used for receiving the sample moved out by the crushing mechanism, a motor used for enabling the extrusion roller to rotate is arranged on the machine frame, the movable roller can move along the machine frame and is used in cooperation with the extrusion roller, a push rod motor is arranged on the machine frame, the extrusion roller and the movable roller each comprise a mandrel, a detachable extrusion shell is arranged outside each mandrel, and each extrusion shell is of a hollow cylindrical structure. The food pesticide residue detection device solves the problem that when the food pesticide residue detection device is used in the prior art, the crushing mechanism is not replaced in time, so that the accuracy of subsequent detection samples is influenced, and the food pesticide residue detection device is widely applied to food pesticide residue detection manufacturers.

Description

Technical Field

[0001] The utility model belongs to the technical field of food safety detection, and in particular relates to a rapid detection device for pesticide residues in food. Background Art

[0002] With the development of modern agriculture, the widespread use of pesticides, while ensuring crop yields, has also led to the problem of pesticide residues, posing a serious threat to food safety. Traditional pesticide residue detection methods, such as chromatography and mass spectrometry, while highly accurate, are expensive, complex, and require long testing cycles. The advent of pesticide detection kits allows for rapid detection of pesticide residues. However, during the testing process, the kits require sample crushing. Squeeze rollers are the most common crushing equipment. After crushing the first sample, continuing to use the same crush rollers for subsequent samples can affect test results. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a rapid detection device for pesticide residues in food, which solves the problem that when using the food pesticide residue detection device in the existing technology, the crushing mechanism is not replaced in time, affecting the accuracy of subsequent detection samples.

[0004] The technical solution is that the rapid detection device for pesticide residues in food includes a frame, a crushing mechanism for crushing and squeezing samples is provided on the frame, and a detection box for receiving samples removed from the crushing mechanism is provided on the frame. The crushing mechanism includes an extrusion roller rotatably connected to the frame, and a motor for rotating the extrusion roller is provided on the frame. It also includes a moving roller that can move along the frame and cooperate with the extrusion roller. A push rod motor is provided on the frame to form a structure in which the moving roller moves away from or approaches the fixed roller under the action of the push rod motor. The extrusion roller and the moving roller have the same structure, and both include a core shaft. A detachable extrusion shell is provided on the outside of the core shaft, and the extrusion shell is a hollow cylindrical structure. There are multiple extrusion shells and they are sequentially sleeved on the core shaft to form a structure in which multiple samples are crushed and the sample contamination is prevented by replacing the extrusion shells.

[0005] Preferably, the extruded shell includes an upper shell and a lower shell that cooperate with each other. The cross-section of the upper shell and the lower shell is a semicircular ring structure. A convex strip with an integral structure is provided at the middle position of the two end surfaces of the lower shell. The convex strip is equal to the length of the lower shell, and a card groove is provided on the upper shell for use with the convex strip.

[0006] Preferably, connecting lower ears are provided at both ends of the lower shell in the length direction and close to the convex strips, and connecting upper ears are provided at both ends of the upper shell in the length direction and close to the slots, and the connecting lower ears and the connecting upper ears are detachably fixed by bolts.

[0007] Preferably, the frame is provided with a slide groove, there are two slide grooves and they are symmetrically arranged about the center line of the fixed roller, a slider is slidably connected in the slide groove, the two sliders are rotatably connected to the movable roller through bearings, the output shaft of the push rod motor is fixedly connected to the slider, and a motor for driving the movable roller to rotate is provided on one side of the slider.

[0008] Preferably, a first magnet is provided on the core shaft, and a second magnet used in conjunction with the first magnet is provided on both the upper shell and the lower shell.

[0009] The beneficial effect of the utility model is that an extrusion roller and a moving roller for crushing samples are arranged on the frame, and the extrusion roller and the moving roller include a core shaft and a detachable extrusion shell sleeved on the core shaft. After the previous sample is crushed, a layer of the extrusion shell is removed, and the moving roller is moved under the action of the push rod motor to continue crushing the next sample without being contaminated.

[0010] The upper and lower shells of the extruded shell cooperate with each other, and the convex strips on the lower shell and the grooves on the upper shell are provided to ensure the tightness of the connection position between the upper and lower shells. The upper and lower shells are provided with connecting lower ears and connecting upper ears for connection, which facilitates the disassembly and assembly of the extruded shell by removing the bolts;

[0011] The first magnet on the core shaft and the second magnets on the upper shell and the lower shell are used in combination, so that the upper shell and the lower shell can be quickly positioned when being fixed to the core shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the utility model's rapid detection device for pesticide residues in food;

[0013] Figure 2 This is an enlarged view of point A in the structure diagram of the rapid detection device for pesticide residues in food of the utility model;

[0014] Figure 3 This is a front view of the movable roller of the rapid detection device for pesticide residues in food of the utility model;

[0015] Figure 4 The utility model is a structural diagram of a movable roller of a rapid detection device for pesticide residues in food.

[0016] Among them, 1 is an extrusion roller, 2 is a motor, 3 is a moving roller, 4 is a push rod motor, 5 is a core shaft, 6 is an extrusion shell, 7 is an upper shell, 8 is a lower shell, 9 is a convex strip, 10 is a slot, 11 is connected to the lower ear, 12 is connected to the upper ear, 13 is a slide, 14 is a slider, 15 is a first magnet, 16 is a second magnet, and 17 is a frame. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions of the various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0019] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0020] Example 1: As shown in the drawings of the specification, a rapid detection device for pesticide residues in food includes a frame 17, a crushing mechanism for crushing and squeezing samples is provided on the frame 17, a detection box for receiving samples removed from the crushing mechanism is provided on the frame 17, the crushing mechanism includes an extrusion roller 1 rotatably connected to the frame 17, and a connecting rod is provided on the frame 17, the connecting rod has two connecting rods and a bearing is provided inside the connecting rod that is interference fit with the end of the extrusion roller 1. A support plate is provided on the frame 17, and a motor 2 for driving the extrusion roller 1 to rotate is fixed to the support plate via mounting seat bolts. The frame 17 also includes a moving roller 3 that can move along the frame 17 and cooperate with the extrusion roller 1. The frame 17 is provided with a push rod motor 4, so that the moving roller 3 moves away from or approaches the fixed roller under the action of the push rod motor 4. The frame 17 is provided with a slide 13, which has two slides 13 and is symmetrically arranged about the center line of the fixed roller. A slider 14 is slidably connected to the slide 13. The two sliders 14 are provided with through holes running through their thickness direction. The through holes are provided with bearings that are interference fit with the ends of the movable roller 3. The output shaft of the push rod motor 4 is fixedly connected to the slider 14. The motor 2 for driving the movable roller 3 to rotate is fixed to one side of the slider 14 via a mounting seat bolt. The squeezing roller 1 and the movable roller 3 have the same structure. The squeezing roller 1 and the movable roller 3 both include a core shaft 5. A detachable squeezing shell 6 is provided on the outside of the core shaft 5. The squeezing shell 6 is a hollow cylindrical structure. There are multiple squeezing shells 6 and they are sequentially mounted on the core shaft 5, forming a structure in which multiple samples can be crushed by relying on the replacement of the squeezing shells 6 to prevent sample contamination.

[0021] In one embodiment, as shown in the accompanying drawings, the extruded housing 6 comprises an upper housing 7 and a lower housing 8 that cooperate with each other. The upper and lower housings 7 and 8 have semicircular cross-sections. A protrusion 9 integrally formed with the lower housing 8 is provided midway between the two end surfaces thereof. The protrusion 9 is of equal length to the lower housing 8. The upper housing 7 is provided with a retaining groove 10 that cooperates with the protrusion 9. Lower connecting ears 11 integrally formed with the lower housing 8 are provided at both longitudinal ends of the lower housing 8, near the protrusion 9. Upper connecting ears 12 integrally formed with the upper housing 7 are provided at both longitudinal ends of the upper housing 7, near the retaining groove 10. The lower connecting ears 11 and the upper connecting ears 12 are removably secured by bolts. A recessed slot is provided in the mandrel 5, into which a first magnet 15 is glued. Second magnets 16 that cooperate with the first magnet 15 are glued through recessed slots in both the upper and lower housings 7 and 8, facilitating quick positioning of the upper and lower housings 7 and 8 when they are secured to the mandrel 5.

[0022] The utility model arranges an extrusion roller and a moving roller for crushing samples on a frame, the extrusion roller and the moving roller include a core shaft and a detachable extrusion shell sleeved on the core shaft, a layer of the extrusion shell is removed after the previous sample is crushed, and the moving roller is moved under the action of a push rod motor to continue crushing the next sample without being contaminated; the upper shell and the lower shell of the extrusion shell cooperate with each other, the convex strip on the lower shell and the groove on the upper shell are arranged to ensure the tightness of the connection position of the upper shell and the lower shell, and the upper shell and the lower shell are provided with a connecting lower ear and a connecting upper ear for connection, which facilitates the disassembly and assembly of the extrusion shell by disassembling bolts; the first magnet on the core shaft and the second magnet on the upper shell and the lower shell are used in coordination, which facilitates the rapid positioning of the upper shell and the lower shell when they are fixed to the core shaft.

[0023] The present invention has been described in detail above through specific implementation methods and examples, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may make many variations and improvements, which should also be considered as the scope of protection of the present invention.

Claims

1. A rapid detection device for pesticide residues in food, comprising a frame (17), a crushing mechanism for crushing and extruding a sample provided on the frame (17), and a detection box for receiving a sample removed by the crushing mechanism provided on the frame (17), characterized in that: The crushing mechanism includes an extrusion roller (1) rotatably connected to a frame (17), a motor (2) for rotating the extrusion roller (1) is provided on the frame (17), and also includes a moving roller (3) that can move along the frame (17) and is used in conjunction with the extrusion roller (1), a push rod motor (4) is provided on the frame (17), forming a structure in which the moving roller (3) moves away from or approaches the fixed roller under the action of the push rod motor (4), the extrusion roller (1) and the moving roller (3) have the same structure, and both the extrusion roller (1) and the moving roller (3) include a core shaft (5), and a detachable extrusion shell (6) is provided on the outside of the core shaft (5). ), the extrusion shell (6) is a hollow cylindrical structure, there are multiple extrusion shells (6) and they are sequentially sleeved on the core shaft (5), forming a structure in which multiple samples are prevented from being contaminated by relying on the replacement of the extrusion shells (6) when they are crushed, the extrusion shell (6) comprises an upper shell (7) and a lower shell (8) used in conjunction with each other, the cross-sections of the upper shell (7) and the lower shell (8) are semi-circular ring structures, and the middle position of the two end surfaces of the lower shell (8) is provided with a convex strip (9) with an integral structure therewith, and the convex strip (9) is equal in length to the lower shell (8), and the upper shell (7) is provided with a card slot (10) used in conjunction with the convex strip (9).

2. The rapid detection device for pesticide residues in food according to claim 1, characterized in that: Connecting lower ears (11) are provided at both ends of the lower shell (8) in the length direction and close to the ridge (9), and connecting upper ears (12) are provided at both ends of the upper shell (7) in the length direction and close to the slot (10), and the connecting lower ears (11) and the connecting upper ears (12) are detachably fixed by bolts.

3. The rapid detection device for pesticide residues in food according to claim 1, characterized in that: The frame (17) is provided with a slide groove (13), and there are two slide grooves (13) and they are symmetrically arranged about the center line of the fixed roller. A slider (14) is slidably connected in the slide groove (13), and the two sliders (14) are rotatably connected to the movable roller (3) through bearings. The output shaft of the push rod motor (4) is fixedly connected to the slider (14), and a motor (2) for driving the movable roller (3) to rotate is provided on one side of the slider (14).

4. The rapid detection device for pesticide residues in food according to claim 1, characterized in that: A first magnet (15) is provided on the core shaft (5), and a second magnet (16) used in conjunction with the first magnet (15) is provided on both the upper shell (7) and the lower shell (8).

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