A food engineering pesticide residue detection device

Abstract

This utility model relates to the field of food safety testing, specifically a food engineering pesticide residue testing device, comprising: a mounting frame; and multiple crushing blades corresponding one-to-one with test tubes on a mold. A drive assembly simultaneously drives multiple gears to reciprocate, and with the action of connecting components corresponding to multiple rotating shafts, the multiple gears rotate simultaneously, driving the multiple crushing blades to rotate synchronously and crush the samples in multiple test tubes. This provides convenient synchronous crushing of samples in multiple test tubes, eliminating the need for repeated adjustments to the crushing blade positions. When cleaning the crushing blades, they can be disassembled by removing the two mounting plates, which is convenient and reduces the workload of testing personnel. Furthermore, the connecting components allow staff to control the number and position of the crushing blades according to actual usage, increasing the device's practicality.

Description

Technical Field

[0001] This utility model relates to the field of food safety testing, and in particular to a food engineering pesticide residue detection device. Background Technology

[0002] Food engineering is a general term for engineering and technical fields such as grain and oil processing, food manufacturing, and beverage manufacturing. With the development of agriculture, the widespread use of pesticides has greatly increased the output of agricultural products. However, the unreasonable use of pesticides will lead to excessive pesticide residues in agricultural products, affecting the safety of consumers. Therefore, detection devices are used in food engineering to detect pesticide residues in agricultural products.

[0003] A search revealed that the Chinese patent "A Pesticide Residue Detection Device for Vegetable Food Engineering" (authorization announcement number "CN211347625U") involves attaching a test tube to the inside of an EVA test tube mold, adjusting the position of the column on the guide rail, adjusting the height of the crossbar on the electric lifting guide rail, and adjusting the position of the threaded rod on the crossbar so that the crushing blade is directly above the test tube. The sample is placed in the test tube, and the electric lifting guide rail descends, bringing the crushing blade into contact with the sample. The drive motor is then activated, causing the crushing blade to crush the sample. After crushing, the crossbar on the electric lifting guide rail is raised, detaching the crushing blade from the test tube. Buffer solution is then added to the test tube, and a shaker is activated to separate the extract. The entire operation requires no transfer and is convenient and quick.

[0004] Although the above application can crush samples, when the crushing blade crushes samples in multiple test tubes on the test tube mold in sequence, it is necessary to move the crushing blade multiple times and repeatedly adjust its position. In addition, the crushing blade must be disassembled and cleaned one by one before crushing multiple samples, which increases the workload of the testing personnel.

[0005] Therefore, a food engineering pesticide residue detection device is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a pesticide residue detection device for food engineering to solve the above-mentioned problems. It improves the problem that when the crusher sequentially crushes samples in multiple test tubes on the test tube mold, it is necessary to move the crusher multiple times and repeatedly adjust its position. Furthermore, the crusher must be disassembled and cleaned one by one before crushing multiple samples, which increases the workload of the testing personnel.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a food engineering pesticide residue detection device, comprising: a mounting frame and multiple test tubes, wherein an oscillator is mounted on the top of the mounting frame, and a mold is slidably connected to the top of the oscillator;

[0008] A crushing mechanism includes a movable plate slidably connected to one side of the inner wall of a mounting frame. A driving assembly is provided at the top of the movable plate. Two fixed plates are fixedly connected to the other side of the movable plate. Multiple gears are rotatably connected to the top of the fixed plates. Two mounting plates are installed at the bottom of the movable plate. Multiple rotating shafts are rotatably connected to the inner wall of the mounting plates. Crushing blades are fixedly connected to the lower surface of the rotating shafts. A connecting assembly is provided at the upper surface of the rotating shafts.

[0009] Preferably, the connecting assembly includes a connecting plate fixedly connected to the upper end of the rotating shaft surface, a threaded rod rotatably connected to the top of the connecting plate, a slider threadedly connected to the surface of the threaded rod, a locking rod fixedly connected to one end of the slider, and a fixing block fixedly connected to the lower end of the gear rotating shaft surface. The top of the mounting plate and the surface of the fixing block are both provided with locking holes matching the locking rod. This facilitates the connection between the rotating shaft and the gear above, ensuring the stability of the device operation.

[0010] Preferably, the drive assembly includes a motor fixedly connected to the top of the movable plate, the output shaft of the motor being fixedly connected to a reciprocating lead screw, a sliding plate being provided on the surface of the reciprocating lead screw, and racks being fixedly connected to both ends of the sliding plate. This facilitates driving the two racks to reciprocate horizontally, thereby driving multiple gears to reciprocate.

[0011] Preferably, a limiting rod is fixedly connected to the surface of the connecting plate, and the inner wall of the slider is slidably connected to the surface of the limiting rod. This ensures the stability of the slider driving the locking rod to move up and down.

[0012] Preferably, a limiting plate is fixedly connected to the bottom end of the sliding plate, and the surface of the limiting plate is slidably connected to the inner wall of the moving plate. This facilitates limiting the movement path of the slider.

[0013] Preferably, a lead screw is rotatably connected to one side of the oscillator, and a movable block is threaded onto the surface of the lead screw. One end of the movable block is fixedly connected to one side of the mold. This facilitates the adjustment of the mold's position and ensures that the test tube can be properly placed inside the mold.

[0014] Preferably, the opening of the locking hole is funnel-shaped, and the end of the locking rod is curved. This helps to ensure the stability when the locking rod is engaged with the locking hole.

[0015] The beneficial effects of this utility model are:

[0016] 1. The above-mentioned crushing mechanism is equipped with multiple crushing blades that correspond one-to-one with the test tubes on the mold. The drive assembly simultaneously drives multiple gears to reciprocate. With the help of the connecting components corresponding to multiple rotating shafts, it is beneficial to enable multiple gears to rotate simultaneously and drive multiple crushing blades to rotate synchronously through multiple rotating shafts, so as to crush the samples in multiple test tubes synchronously. It is more convenient to crush the samples in multiple test tubes synchronously, without the need to repeatedly adjust the position of the crushing blades. Furthermore, when it is necessary to clean the crushing blades, multiple crushing blades can be disassembled by removing the two mounting plates, which is convenient and reduces the workload of the testing personnel. With the help of the connecting components, it is beneficial for the staff to control the number and position of the crushing blades to be rotated according to the actual use, which increases the practicality of the device.

[0017] 2. By setting up connecting components, it is beneficial to release the locking rod from the corresponding fixing block surface locking hole while simultaneously achieving synchronous limiting between the rotating shaft and the mounting plate, making operation more convenient and ensuring the stability of the device during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the mold and oscillator of this utility model;

[0020] Figure 3 This is a schematic diagram of the drive component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the gear and shaft mounting structure of this utility model;

[0022] Figure 5 for Figure 4 A magnified view of A in the middle.

[0023] In the diagram: 100, mounting bracket; 200, vibrator; 210, lead screw; 220, moving block; 300, mold; 400, test tube; 500, crushing mechanism; 510, moving plate; 520, drive assembly; 521, motor; 522, reciprocating lead screw; 523, sliding plate; 524, rack; 525, limiting plate; 530, mounting plate; 540, rotating shaft; 550, crushing blade; 560, fixing plate; 570, gear; 580, connecting assembly; 581, connecting plate; 582, threaded rod; 583, slider; 584, locking rod; 585, fixing block; 586, locking hole; 587, limiting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figure 1-5 As shown, a food engineering pesticide residue detection device includes: a mounting frame 100 and multiple test tubes 400. A vibrator 200 is mounted on the top of the mounting frame 100, and a mold 300 is slidably connected to the top of the vibrator 200.

[0026] The crushing mechanism 500 includes a movable plate 510 slidably connected to one side of the inner wall of the mounting frame 100. A drive assembly 520 is located at the top of the movable plate 510. Two fixed plates 560 are fixedly connected to the other side of the movable plate 510. Multiple gears 570 are rotatably connected to the top of the fixed plates 560. Two mounting plates 530 are mounted at the bottom of the movable plate 510. Multiple rotating shafts 540 are rotatably connected to the inner wall of the mounting plates 530. A crushing blade 550 is fixedly connected to the lower surface of each rotating shaft 540. A connecting assembly 580 is located at the upper surface of each rotating shaft 540. The maximum diameter of the crushing blade 550 is smaller than the inner diameter of the test tube 400.

[0027] In this embodiment, the mounting plate 530 is installed on the movable plate 510 by bolts and nuts. This installation method is a conventional connection structure. When cleaning the crusher 550, the mounting plate 530 can be disassembled. The number of rotating shafts 540 on a single mounting plate 530 is the same as the number of rotating gears 570 on a single fixed plate 560. After the mounting plate 530 and the movable plate 510 are installed, the two mounting plates 530 are located below the two fixed plates 560 respectively, and the positions of the multiple rotating shafts 540 on the mounting plate 530 correspond one-to-one with the positions of the multiple gears 570 on the corresponding fixed plate 560, and the center point of the rotating shaft 540 coincides with the center point of the corresponding gear 570.

[0028] An electric push rod is fixedly connected to one side of the mounting bracket 100. The telescopic end of the electric push rod is fixedly connected to the bottom end of the movable plate 510. The movable plate 510 can be moved up and down by starting the electric push rod through the controller.

[0029] like Figure 3 , Figure 4 and Figure 5As shown, the connecting assembly 580 includes a connecting plate 581 fixedly connected to the upper end of the surface of the rotating shaft 540. A threaded rod 582 is rotatably connected to the top end of the connecting plate 581. A slider 583 is threadedly connected to the surface of the threaded rod 582. A locking rod 584 is fixedly connected to one end of the slider 583. A fixing block 585 is fixedly connected to the lower end of the surface of the rotating shaft of the gear 570. The top end of the mounting plate 530 and the surface of the fixing block 585 are both provided with locking holes 586 that match the locking rod 584. A limiting rod 587 is fixedly connected to the surface of the connecting plate 581, and the inner wall of the slider 583 is slidably connected to the surface of the limiting rod 587.

[0030] In this embodiment, in the initial state, the top of the lever 584 passes through the corresponding locking hole 586 on the surface of the fixing block 585, thereby connecting the rotating shaft 540 with the gear 570 above it. Therefore, when the drive gear 570 rotates, the gear 570 will drive the corresponding rotating shaft 540 to rotate synchronously through the locking hole 586 and the lever 584.

[0031] It should be noted that when the rotating threaded rod 582 drives the locking rod 584 downward through the slider 583 and enters the locking hole 586 at the top of the mounting plate 530, the horizontal height of the top of the locking rod 584 is lower than the horizontal height of the bottom of the rotating shaft of the gear 570. Therefore, when the connection between the rotating shaft 540 and the corresponding gear 570 is disconnected, it does not affect the normal rotation of the gear 570.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly 520 includes a motor 521 fixedly connected to the top of the movable plate 510. The output shaft of the motor 521 is fixedly connected to a reciprocating screw 522. A slide plate 523 is provided on the surface of the reciprocating screw 522. Both ends of the slide plate 523 are fixedly connected to racks 524.

[0033] In this embodiment, the multiple gears 570 at the top of a single fixed plate 560 form a group, and the two racks 524 are respectively meshed with the surfaces of the two groups of gears 570. The motor 521 is started by the controller, and the output shaft of the motor 521 drives the reciprocating screw 522 to rotate. The reciprocating screw 522 is in the form of two threaded grooves with the same pitch and opposite directions of rotation, and the two ends are connected by a transition curve. Through the rotation of the reciprocating screw 522, the side of the spiral groove pushes the limit block placed in the spiral groove to make axial reciprocating motion. Therefore, when the reciprocating screw 522 rotates, it will drive the two racks 524 to reciprocate in the horizontal direction through the slide plate 523.

[0034] like Figure 3 As shown, a limiting plate 525 is fixedly connected to the bottom end of the sliding plate 523, and the surface of the limiting plate 525 is slidably connected to the inner wall of the moving plate 510.

[0035] In this embodiment, the top of the movable plate 510 is provided with a limiting groove that matches the movement of the limiting plate 525, thereby limiting the movement path of the movable plate 510.

[0036] like Figure 2 As shown, a lead screw 210 is rotatably connected to one side of the oscillator 200, and a moving block 220 is threadedly connected to the surface of the lead screw 210. One end of the moving block 220 is fixedly connected to one side of the mold 300.

[0037] In this embodiment, when the moving block 220 moves to the farthest distance on the surface of the lead screw 210, the positions of the multiple placement slots opened at the top of the mold 300 correspond one-to-one with the positions of the multiple crushing blades 550, and the center of the placement slot coincides with the rotation center point of the corresponding crushing blade 550.

[0038] When it is necessary to clamp the test tube 400 into the mold 300, rotate the lead screw 210 to drive the moving block 220 to move, thereby driving the mold 300 to move synchronously, so that the position of the placement slot is staggered with the position of the crushing blade 550. At this time, multiple test tubes 400 are clamped into multiple placement slots respectively. After clamping is completed, rotate the lead screw 210 to drive the mold 300 to move to the initial position.

[0039] like Figure 5 As shown, the opening of the card hole 586 is trumpet-shaped, and the end of the card rod 584 is bent into an arc shape.

[0040] In this embodiment, the diameter of the locking rod 584 matches the inner edge diameter of the locking hole 586. Therefore, when the locking rod 584 is engaged with the locking hole 586, the surface of the locking rod 584 is in contact with the surface of the locking hole 586.

[0041] Working principle: When testing samples in multiple test tubes 400, the test tubes 400 are respectively snapped into the placement slots at the top of the mold 300. After snapping, the samples are placed into their corresponding test tubes 400. After this operation, the mold 300 is driven to reset, so that the multiple test tubes 400 correspond one-to-one with the multiple crushing blades 550. The moving plate 510 is driven to move downward, thereby driving the multiple crushing blades 550 to move downward synchronously and enter the corresponding test tubes 400. Once the crushing blades 550 enter the test tubes 400, they stop moving downward and the motor 521 in the drive assembly 520 is started by the controller. At this time, under the action of the reciprocating screw 522, the slide plate 523 and the two racks 524, multiple gears 570 are driven to reciprocate synchronously. Under the action of multiple connecting components 580, multiple rotating shafts 540 are driven to drive multiple crushing blades 550 to reciprocate and crush the samples in multiple test tubes 400. After crushing, the crushing mechanism 500 is driven to move upward, so that the crushing blades 550 are disengaged from the test tubes 400 and buffer solution is added into the test tubes 400. The shaker 200 is started and the samples in multiple test tubes 400 are shaken and separated through the mold 300 to obtain the extract. The extract can then be tested.

[0042] It should be noted that when it is not necessary to drive multiple crushing blades 550 to rotate simultaneously, rotating the threaded rod 582 on the corresponding rotating shaft 540 will cause the threaded rod 582 to rotate and drive the locking rod 584 to move downward through the slider 583. This will allow the bottom end of the locking rod 584 to enter the locking hole 586 at the top of the mounting plate 530 and release the locking with the locking hole 586 on the surface of the corresponding fixing block 585. This will achieve the positioning of the rotating shaft 540 while simultaneously releasing the connection between the rotating shaft 540 and the upper gear 570.

[0043] It should be noted that the electric linear actuators, motors, and oscillators mentioned above are all devices with relatively mature existing technologies. Specific models can be selected according to actual needs. At the same time, the electric linear actuators, motors, and oscillators can be powered by built-in power supplies or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A food engineering pesticide residue detection device, characterized in that, include: The mounting bracket (100) and a plurality of test tubes (400) are provided. A oscillator (200) is mounted on the top of the mounting bracket (100), and a mold (300) is slidably connected to the top of the oscillator (200). The crushing mechanism (500) includes a movable plate (510) slidably connected to one side of the inner wall of the mounting frame (100). A drive assembly (520) is provided at the top of the movable plate (510). Two fixed plates (560) are fixedly connected to the other side of the movable plate (510). Multiple gears (570) are rotatably connected to the top of the fixed plates (560). Two mounting plates (530) are installed at the bottom of the movable plate (510). Multiple rotating shafts (540) are rotatably connected to the inner wall of the mounting plates (530). A crushing blade (550) is fixedly connected to the lower end of the surface of the rotating shaft (540). A connecting assembly (580) is provided at the upper end of the surface of the rotating shaft (540).

2. The food engineering pesticide residue detection device according to claim 1, characterized in that: The connecting assembly (580) includes a connecting plate (581) fixedly connected to the upper end of the surface of the rotating shaft (540). A threaded rod (582) is rotatably connected to the top end of the connecting plate (581). A slider (583) is threadedly connected to the surface of the threaded rod (582). A locking rod (584) is fixedly connected to one end of the slider (583). A fixing block (585) is fixedly connected to the lower end of the surface of the rotating shaft of the gear (570). The top end of the mounting plate (530) and the surface of the fixing block (585) are both provided with locking holes (586) that match the locking rod (584).

3. The food engineering pesticide residue detection device according to claim 1, characterized in that: The drive assembly (520) includes a motor (521) fixedly connected to the top of the movable plate (510). The output shaft of the motor (521) is fixedly connected to a reciprocating screw (522). A slide plate (523) is provided on the surface of the reciprocating screw (522). Both ends of the slide plate (523) are fixedly connected to racks (524).

4. The food engineering pesticide residue detection device according to claim 2, characterized in that: The surface of the connecting plate (581) is fixedly connected to the limiting rod (587), and the inner wall of the slider (583) is slidably connected to the surface of the limiting rod (587).

5. The food engineering pesticide residue detection device according to claim 3, characterized in that: The bottom end of the slide plate (523) is fixedly connected to a limiting plate (525), and the surface of the limiting plate (525) is slidably connected to the inner wall of the moving plate (510).

6. The food engineering pesticide residue detection device according to claim 1, characterized in that: A lead screw (210) is rotatably connected to one side of the oscillator (200), and a moving block (220) is threadedly connected to the surface of the lead screw (210). One end of the moving block (220) is fixedly connected to one side of the mold (300).

7. The food engineering pesticide residue detection device according to claim 2, characterized in that: The opening of the card hole (586) is trumpet-shaped, and the end of the card rod (584) is bent into an arc shape.

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