A rapid pretreatment modular device for pesticide residue detectors

Abstract

This utility model belongs to the field of pesticide residue detection, and in particular, it is a rapid pretreatment modular device for pesticide residue detectors. Addressing the problem that current pre-detection preparation work is all done manually by the inspector, which is time-consuming, labor-intensive, and inconvenient due to manual shaking and sample cutting, the following solution is proposed: A base plate is included, with a disc rotatably connected to its surface. An adjusting block is fixedly connected to the outer wall of the disc. An arc-shaped guide groove is formed on the surface of the base plate, and the adjusting block is located within the guide groove. Two guide plates are fixed parallel to the surface of the base plate. This utility model assists the inspector in completing pre-detection preparation work, including shaking and sample cutting, saving the inspector's energy. It also frees up the inspector's hands for other operations during shaking, saving pretreatment time and preventing the inspector from contacting the cutting blade when placing and handling samples, thus providing some protection for the inspector.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, and in particular to a rapid pretreatment modular device for a pesticide residue detector. Background Technology

[0002] Pesticide residue detectors are one of the commonly used devices for pesticide residue detection. The core principle is to utilize the specific inhibitory effect of organophosphorus and carbamate pesticides on cholinesterase.

[0003] Before testing, each material needs to be prepared, such as adding buffer solution to the colorimetric reagent bottle and shaking it, adding buffer solution to the cholinesterase bottle and shaking it, adding distilled water to the substrate bottle and shaking it, selecting vegetable samples, cutting them into pieces, putting them into the extraction bottle, adding buffer solution and shaking it, etc.

[0004] However, all the preparatory work before testing is done manually by the testers. Manually shaking and cutting the samples is time-consuming, laborious, and inconvenient.

[0005] Therefore, we propose a rapid pretreatment modular device for pesticide residue detectors. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where all pre-detection preparations are done manually by the tester, and manual shaking and cutting of samples is time-consuming, labor-intensive, and inconvenient. Therefore, this invention proposes a rapid pre-processing modular device for pesticide residue detectors.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A rapid pretreatment modular device for pesticide residue detectors includes: A substrate, on the surface of which a disk is rotatably connected, and an adjusting block is fixedly connected to the outer wall of the disk. An arc-shaped guide groove is formed on the surface of the substrate, and the adjusting block is located in the guide groove. Two guide plates are fixed parallel to the surface of the substrate, and a slide block is slidably connected between the two guide plates. The surface of the slide block is provided with multiple positioning grooves of different sizes, and a buffer pad is adhered to the inner wall of the positioning groove. A cutting mechanism, disposed on the surface of the substrate, is used to cut the sample placed on the disk; A driving mechanism, disposed on the surface of the substrate, is used to drive the slide to reciprocate along the guide plate to achieve a shaking operation.

[0008] In one possible design, the cutting mechanism includes: Mounting plate, fixed to the surface of the substrate; An electric push rod is fixed to the top of the mounting plate; The lifting platform is fixed to the bottom end of the output shaft of the electric push rod and extends through the mounting plate; Multiple cutting blades are fixed to the bottom of the lifting platform; The electric push rod drives the cutting blade to rise and fall to cut the sample.

[0009] In one possible design, a U-shaped slot is provided through the top of the mounting plate, a safety cover is inserted into the slot, and the cutting blade is located inside the safety cover; The top edge of the safety cover is integrally formed with a limiting baffle, and the bottom surface of the limiting baffle is in contact with the surface of the mounting plate.

[0010] In one possible design, the drive mechanism includes: The motor is fixed to the surface of the substrate; Two fixing blocks are fixed to the surface of the substrate; A reciprocating lead screw rotates through the two fixed blocks and is coaxially fixed with the output shaft of the motor; A connecting seat is fixed to the bottom of the slide block; The slider is sleeved on the outer wall of the reciprocating lead screw and engages with the helical groove of the reciprocating lead screw. The slider is fixedly connected to the connecting seat.

[0011] In one possible design, the surface of the slide has multiple rectangular grooves, and both sides of the buffer pad have clearance openings, with the rectangular grooves communicating with the clearance openings.

[0012] In one possible design, a control panel and a battery compartment are fixedly mounted on the surface of the substrate. The control panel has a built-in timing module, and the battery compartment contains a battery.

[0013] In one possible design, the edge of the substrate is provided with a mounting groove, and a protective cover is embedded in the mounting groove.

[0014] In this application, during operation, protective gloves are worn, the buffer powder is taken out and poured into a cup, and distilled water is added and shaken to dissolve. After the buffer is prepared, an appropriate amount of buffer is injected into the colorimetric reagent bottle using a dropper. After capping the bottle, the colorimetric reagent bottle is placed in the positioning groove, and the motor is started to drive the reciprocating screw to rotate. The reciprocating screw drives the connecting seat and the slide to move back and forth, thereby shaking the colorimetric reagent bottle. The same applies to the subsequent cholinesterase bottle and substrate bottle. When processing the sample, place the sample on the disc, start the electric push rod to lower the cutting blade and make the first cut on the sample. The electric push rod then moves the cutting blade back to its original position. Next, move the adjusting block along the guide groove, which will rotate the disc and the sample by 90 degrees. Start the electric push rod again to lower the cutting blade and make the second cut on the sample. The electric push rod then moves the cutting blade back to its original position. Then, take out an appropriate amount of sample and put it into an extraction bottle. Add buffer solution, cap the bottle, and then place it in the positioning slot and shake well.

[0015] Beneficial effects: In this utility model, the rapid pretreatment modular device for pesticide residue detector, through the setting of structures such as sliding base, motor and electric push rod, can assist the tester to complete the pre-test preparation work, complete the shaking operation and sample cutting operation, save the tester's energy, and free up hands to perform other operations during shaking, saving pretreatment time. In this utility model, the rapid pretreatment modular device for a pesticide residue detector, through the setting of structures such as mounting covers and limiting baffles, can prevent the tester from coming into contact with the cutting blade when placing and picking up samples, thus providing a certain degree of protection for the tester. This invention can assist inspectors in completing pre-test preparations, including shaking and cutting samples, saving inspectors' energy. It also frees up their hands for other operations during shaking, saving pre-processing time. Furthermore, it prevents inspectors from coming into contact with the cutting blade when placing and handling samples, providing them with some protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a rapid pretreatment modular device for a pesticide residue detector proposed in this utility model. Figure 2 This is a partial three-dimensional structural diagram from a first-view perspective of a rapid pretreatment modular device for a pesticide residue detector proposed in this utility model. Figure 3 This is a partial three-dimensional structural diagram from a second perspective of a rapid pretreatment modular device for a pesticide residue detector proposed in this utility model. Figure 4 This is a partial three-dimensional structural diagram from a third-view perspective of a rapid pretreatment modular device for a pesticide residue detector proposed in this utility model.

[0017] In the diagram: 1. Base plate; 2. Mounting slot; 3. Protective cover; 4. Disc; 5. Adjusting block; 6. Guide slot; 7. Battery compartment; 8. Control panel; 9. Guide plate; 10. Slide; 11. Positioning slot; 12. Buffer pad; 13. Rectangular slot; 14. Clearance opening; 15. Motor; 16. Fixing block; 17. Reciprocating lead screw; 18. Connecting seat; 19. Mounting plate; 20. Electric push rod; 21. Lifting platform; 22. Cutting blade; 23. Slot; 24. Safety cover; 25. Limiting baffle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In one embodiment: Refer to Figures 1-4 A rapid pretreatment modular device includes: a substrate 1 made of aluminum alloy with an anti-corrosion surface treatment; a stainless steel disc 4 rotatably connected to the center of the substrate 1 via a bearing, with adjusting blocks 5 welded to its edges; an arc-shaped guide groove 6 formed on the surface of the substrate 1, the adjusting blocks 5 being embedded in the guide groove 6 and sliding along the groove to achieve 90-degree rotational positioning of the disc 4.

[0020] Two parallel guide plates 9, made of rigid engineering plastic, are vertically fixed to the surface of the substrate 1. A slide 10 is provided between the two guide plates 9, and the bottom of the slide 10 slides in cooperation with the guide rail of the guide plate 9 via a linear slider. Multiple rectangular positioning slots 11 are formed on the top surface of the slide 10, and the size of the slots is designed according to the standard specifications of colorimetric reagent bottles, cholinesterase bottles and extraction bottles.

[0021] The cutting mechanism is fixed to the right side of the substrate 1: a mounting plate 19 is welded to the surface of the substrate 1, and an electric push rod 20 is mounted at the top. The output axis of the electric push rod 20 passes downward through the mounting plate 19, and its end is connected to the lifting platform 21. Multiple parallel stainless steel cutting blades 22 are mounted on the bottom of the lifting platform 21.

[0022] The drive mechanism is located on the left side of the base plate 1: the motor 15 is fixed to the base plate 1 by bolts, and two fixing blocks 16 are welded to the surface of the base plate 1. The reciprocating lead screw 17 passes through the bearing seat of the fixing block 16, and one end is connected to the output shaft of the motor 15 via a coupling. The bottom of the slide 10 is welded with a connecting seat 18, which is rigidly connected to the slider sleeved on the reciprocating lead screw 17. The slider has balls embedded inside that match the helical groove of the reciprocating lead screw 17, realizing the conversion of the lead screw rotation into the linear reciprocating motion of the slide 10.

[0023] A mounting groove 2 is formed on the front edge of the substrate 1, into which a protective cover 3 made of transparent PC material is fitted. A control panel 8 and a battery compartment 7 are mounted on the rear side of the substrate 1. The control panel 8 integrates a timing module and a motor speed control circuit, and the battery compartment 7 has a built-in lithium-ion battery to power the motor 15 and the electric push rod 20.

[0024] This application can be used in the field of pesticide residue detection, or in other fields applicable to this application.

[0025] In another embodiment: a rapid pretreatment modular device for a pesticide residue detector, which is applied to the field of pesticide residue detection; In another aspect of this embodiment, a silicone buffer pad 12 is bonded to the inner wall of the positioning groove 11. U-shaped clearance openings 14 are provided on both sides of the buffer pad 12, which are connected to the rectangular groove 13 on the surface of the slide 10, making it convenient for the inspector to pick up and place the bottle.

[0026] In another aspect of this embodiment, a U-shaped slot 23 is provided on the top of the mounting plate 19, into which a removable safety cover 24 is inserted to prevent the inspector from directly contacting the cutting blade 22. The top of the safety cover 24 extends to form a limiting baffle 25, which completely covers the cutting blade 22. The bottom surface of the limiting baffle 25 is attached to the top surface of the mounting plate 19 to prevent the safety cover 24 from falling off.

[0027] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 15 and the electric push rod 20 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0028] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rapid pretreatment modular device for pesticide residue detectors, characterized in that, include: A substrate (1) has a disc (4) rotatably connected to its surface. An adjustment block (5) is fixedly connected to the outer wall of the disc (4). An arc-shaped guide groove (6) is opened on the surface of the substrate (1), and the adjustment block (5) is located in the guide groove (6). Two guide plates (9) are fixed parallel to the surface of the substrate (1). A slide block (10) is slidably connected between the two guide plates (9). The surface of the slide block (10) is provided with multiple positioning grooves (11) of different sizes. A buffer pad (12) is adhered to the inner wall of the positioning groove (11). A cutting mechanism is disposed on the surface of the substrate (1) for cutting the sample placed on the disk (4); A driving mechanism is disposed on the surface of the substrate (1) and is used to drive the slide (10) to move back and forth along the guide plate (9) to achieve a shaking operation.

2. The rapid pretreatment modular device for a pesticide residue detector according to claim 1, characterized in that, The cutting mechanism includes: Mounting plate (19) is fixed to the surface of the substrate (1); An electric push rod (20) is fixed to the top of the mounting plate (19); The lifting platform (21) is fixed to the bottom end of the output shaft of the electric push rod (20) and passes through the mounting plate (19). Multiple cutting blades (22) are fixed to the bottom of the lifting platform (21); The electric push rod (20) drives the cutting blade (22) to rise and fall to cut the sample.

3. The rapid pretreatment modular device for a pesticide residue detector according to claim 2, characterized in that, The top of the mounting plate (19) has a U-shaped slot (23) through which a safety cover (24) is inserted, and the cutting blade (22) is located inside the safety cover (24). The top edge of the safety cover (24) is integrally formed with a limiting baffle (25), and the bottom surface of the limiting baffle (25) is in contact with the surface of the mounting plate (19).

4. The rapid pretreatment modular device for a pesticide residue detector according to claim 3, characterized in that, The drive mechanism includes: The motor (15) is fixed to the surface of the substrate (1); Two fixing blocks (16) are fixed to the surface of the substrate (1); The reciprocating lead screw (17) rotates through the two fixed blocks (16) and is coaxially fixed with the output shaft of the motor (15); A connecting seat (18) is fixed to the bottom of the slide (10); The slider is sleeved on the outer wall of the reciprocating lead screw (17) and engages with the helical groove of the reciprocating lead screw (17). The slider is fixedly connected to the connecting seat (18).

5. The rapid pretreatment modular device for a pesticide residue detector according to claim 4, characterized in that, The surface of the slide (10) is provided with a plurality of rectangular grooves (13), and the buffer pad (12) is provided with clearance openings (14) on both sides. The rectangular grooves (13) are connected to the clearance openings (14).

6. The rapid pretreatment modular device for a pesticide residue detector according to claim 5, characterized in that, The surface of the substrate (1) is fixedly provided with a control panel (8) and a battery compartment (7). The control panel (8) has a built-in timing module, and the battery compartment (7) contains a battery.

7. The rapid pretreatment modular device for a pesticide residue detector according to claim 6, characterized in that, The substrate (1) has a mounting groove (2) on its edge, and a protective cover (3) is embedded in the mounting groove (2).

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