A vehicle-mounted pesticide residue rapid detection device

Abstract

The utility model relates to a vehicle -mounted pesticide residue rapid detection equipment relates to pesticide residue detection equipment technical field, this vehicle -mounted pesticide residue rapid detection equipment, including base, the base top is provided with extraction mechanism, the extraction mechanism top is provided with cutting mechanism, the extraction mechanism surface is provided with test paper clamping mechanism, the base bottom is fixed with shock -absorbing antiskid mat, the base top is fixed with controller, the extraction mechanism includes support, the support is fixed in base top, the support surface is fixed with extraction shell, the extraction shell top right side intercommunication has feeding shell, the extraction shell left side is equipped with the residue discharge port, the extraction shell surface right side is fixed with the speed -reducing motor, the speed -reducing motor output shaft penetrates extraction shell and is fixed with extrusion axle, the extrusion axle surface is fixed with helical blade, the extraction shell bottom is provided with liquid discharge groove. The utility model realizes the integration of crushing, extraction, detection, and significantly shortens the detection cycle.

Description

Technical Field

[0001] This utility model relates to the technical field of pesticide residue detection equipment, specifically a vehicle-mounted rapid pesticide residue detection device. Background Technology

[0002] Vehicle-mounted rapid pesticide residue detection equipment is a portable instrument that can be installed in a vehicle, specifically designed for the rapid detection of pesticide residues in agricultural products in the field, market, or during transportation. Combining mobile detection and real-time analysis, it is a highly efficient tool in modern agriculture and food safety supervision.

[0003] Utility model patent CN215985754U discloses a pesticide residue detection device, including a tank with multiple ultrasonic transducers at the bottom and a drain pipe connected to the center of the bottom, with a solenoid valve mounted on the drain pipe. A top cover is inserted into the top of the tank, with an opening in the center of the cover communicating with the interior of the tank. A pesticide residue test strip clip is mounted on one side wall of the opening. A pressing device is inserted into the opening. The tank is located inside a housing. The end of the drain pipe is located outside the housing. A control panel is located outside the housing, electrically connected to the ultrasonic transducers and the solenoid valve. This pesticide residue detection device uses ultrasonic vibration to wash away pesticide residues on the surface of vegetables, fruits, or tea leaves with an eluent, eliminating the need for crushing, reducing juice interference, and improving detection accuracy.

[0004] However, the existing technical solutions mentioned above still have the following shortcomings: The device manually presses down the agricultural products using a pressing device, and then extracts the liquid from the agricultural products using an ultrasonic transducer. However, ultrasound mainly acts on liquid media and has weak ability to break down the cell walls of solid particles (such as granular crops), making it difficult to release the pesticide residues adsorbed inside, resulting in poor detection effect of the equipment. In addition, the sampling of pesticide residues may occur in non-laboratory environments, requiring the samples to be transported to the laboratory. If a vehicle-mounted detection product could be designed, it would be meaningful for shortening the detection chain and improving detection efficiency. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model proposes a vehicle-mounted rapid pesticide residue detection device to solve the aforementioned problems.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A vehicle-mounted rapid pesticide residue detection device includes a base, an extraction mechanism on the top of the base, a cutting mechanism on the top of the extraction mechanism, a test strip clamping mechanism on the surface of the extraction mechanism, a shock-absorbing and anti-slip pad fixed at the bottom of the base, and a controller fixed at the top of the base.

[0008] The extraction mechanism includes a support frame fixed to the top of a base. An extraction shell is fixed to the surface of the support frame. A feed shell is connected to the top right side of the extraction shell. A slag discharge port is provided on the left side of the extraction shell. A reduction motor is fixed to the right side of the extraction shell. The output shaft of the reduction motor passes through the extraction shell and is fixed to a squeezing shaft. A spiral blade is fixed to the surface of the squeezing shaft. A drain trough is provided at the bottom of the extraction shell. A guide shell is connected to and fixed to the bottom of the extraction shell. A collection shell is connected to the bottom of the guide shell through a pipe. The collection shell is fixed to the top of the base. An operating door is hinged to the top of the collection shell. A drain valve is connected to the front surface of the collection shell. A dropper rack is fixed to the front surface of the collection shell. A rubber dropper is slidably connected to the surface of the dropper rack. A test strip insertion port is provided on the front surface of the collection shell.

[0009] Preferably, the spiral blades adopt a progressive structure design with a larger pitch on the right and a smaller pitch on the left, and the extrusion shaft adopts a structure design with a smaller diameter on the right and a larger diameter on the left.

[0010] Preferably, a residue collection box is provided below the slag discharge port on the left side of the extraction shell, and a collection drawer slides through the inner wall of the residue collection box.

[0011] Preferably, the bottom of the inner wall of the collecting shell is provided with an inclined portion that is higher at the rear and lower at the front, and a support frame is fixed on the left side of the inner wall of the extraction shell, the surface of the support frame being rotatably connected to the left end of the extrusion shaft.

[0012] Preferably, the cutting mechanism includes a cutting shell, the bottom of which is connected to the top of the feeding shell, the top of which is provided with a feeding port, a rotating shaft rotatably connected to the inner wall of the cutting shell, a plurality of cutting blades fixed on the surface of the rotating shaft, a mounting bracket fixed on the right side surface of the cutting shell, a drive motor fixed on the surface of the mounting bracket, and the output shaft of the drive motor passing through the cutting shell and fixedly connected to one end of the rotating shaft.

[0013] Preferably, the test strip clamping mechanism includes an extension plate, which is fixed to the top front side of the collection shell. A connecting plate is provided below the extension plate, and a spring is fixed to the top of the connecting plate. The top of the spring is fixedly connected to the bottom of the extension plate. A pull rod is fixed to the surface of the connecting plate. The top of the pull rod slides through the extension plate and is fixed to a pull plate. A pressure plate is fixed to the bottom of the pull rod. A backing plate is fixed below the front surface of the test strip inlet of the collection shell, and the pressure plate is located above the backing plate.

[0014] Preferably, a guide rod is fixed to the surface of the connecting plate, the top of the guide rod slides through the extension plate and is fixedly connected to the bottom of the pull plate, the bottom of the guide rod is fixedly connected to the top of the pressure plate, a telescopic cover is fixed to the top of the pressure plate, and the top of the telescopic cover is fixedly connected to the top of the inner wall of the test paper insertion port.

[0015] Compared with existing technologies, the beneficial effects of this vehicle-mounted rapid pesticide residue detection device are:

[0016] First, the extraction mechanism, through the progressive extrusion design of the spiral blades combined with the conical structure of the extrusion shaft, achieves a continuous extrusion process from loose to high pressure on the material, effectively breaking through the cell wall limitations of granular agricultural products and fully releasing the pesticide residue liquid adsorbed inside; the synergistic effect of the guide shell and the inclined part optimizes the liquid flow path and reduces liquid retention; the modular design of the residue collection box and collection drawer simplifies the cleaning process and improves the continuous operation capability of the equipment; the shock-absorbing anti-slip pads and support frame enhance the stability of the equipment in the bumpy environment of the vehicle, ensuring the long-term stable operation of the extrusion shaft and spiral blades.

[0017] Secondly, the high-speed rotating blades of the cutting mechanism quickly crush hard agricultural products, increasing the material surface area to improve subsequent extrusion efficiency. The seamless connection design between the cutting shell and the feeding shell enables continuous operation from crushing to extrusion, avoiding the time-consuming problem of traditional multi-step processing. The test strip clamping mechanism ensures full contact between the test strip and the liquid and fixes its position through the elastic pressing mechanism of springs and pressure plates. The guide rod and telescopic cover further ensure operational accuracy and anti-contamination performance. The linkage design of the pull rod and pull plate allows the test strip installation process to be completed with one hand, greatly reducing the complexity of operation and adapting to the rapid testing needs of vehicle-mounted scenarios. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0020] Figure 3 This is a cross-sectional structural diagram of the extraction mechanism of this utility model;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the extraction mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the cutting mechanism in this utility model;

[0023] Figure 6 This utility model Figure 5 A magnified structural diagram at point A in the diagram.

[0024] The components include: 1. Base; 2. Extraction mechanism; 201. Support; 202. Extraction shell; 203. Feeding shell; 204. Gear motor; 205. Extrusion shaft; 206. Spiral blades; 207. Drainage trough; 208. Guide shell; 209. Collection shell; 210. Operating door; 211. Drainage valve; 212. Dropper rack; 213. Dropper head; 214. Residue collection box; 215. Collection drawer; 216. Support frame. 217. Inclined section; 3. Cutting mechanism; 301. Cutting shell; 302. Rotating shaft; 303. Cutting blade; 304. Mounting bracket; 305. Drive motor; 4. Test paper clamping mechanism; 401. Extension plate; 402. Connecting plate; 403. Spring; 404. Pull rod; 405. Pressure plate; 406. Support plate; 407. Pull plate; 408. Guide rod; 409. Telescopic cover; 5. Shock-absorbing and anti-slip pad; 6. Controller. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0026] Please refer to the following specific embodiment of a vehicle-mounted rapid pesticide residue detection device. Figures 1-6 The device includes a base 1, an extraction mechanism 2 on the top of the base 1, a cutting mechanism 3 on the top of the extraction mechanism 2, a test strip clamping mechanism 4 on the surface of the extraction mechanism 2, a shock-absorbing and anti-slip pad 5 fixed at the bottom of the base 1, and a controller 6 fixed at the top of the base 1.

[0027] Extraction mechanism 2 includes a support 201, which is fixed to the top of base 1. An extraction shell 202 is fixed to the surface of the support 201. A feed shell 203 is connected to the top right side of the extraction shell 202. A slag discharge port is provided on the left side of the extraction shell 202. A reduction motor 204 is fixed to the right side of the surface of the extraction shell 202. The output shaft of the reduction motor 204 passes through the extraction shell 202 and is fixed to a pressing shaft 205. Spiral blades 206 are fixed to the surface of the pressing shaft 205. A liquid discharge port is provided at the bottom of the extraction shell 202. The bottom of the extraction shell 202 is connected to and fixed with a flow guide shell 208. The bottom of the flow guide shell 208 is connected to a collection shell 209 through a pipe. The collection shell 209 is fixed to the top of the base 1. An operation door 210 is hinged to the top of the collection shell 209. A drain valve 211 is connected to the front surface of the collection shell 209. A dropper rack 212 is fixed to the front surface of the collection shell 209. A rubber dropper 213 is slidably connected to the surface of the dropper rack 212. A test paper insertion port is provided on the front surface of the collection shell 209.

[0028] Through the above technical solution, the geared motor 204 drives the extrusion shaft 205 to rotate, and the spiral blade 206 pushes the cut granular agricultural products to the left in the extraction shell 202. Through gradual extrusion, the juice is discharged from the drainage tank 207 to the guide shell 208. The liquid flows into the collection shell 209 through the guide shell 208. During testing, the test strip can be placed in the test strip inlet, and then the test strip is clamped and fixed by the test strip clamping mechanism 4. Then, the operation door 210 is opened and the dropper 213 is taken out from the dropper rack 212. Then, the sample is taken through the dropper 213 and dripped onto the surface of the test strip for testing.

[0029] The spiral blade 206 adopts a progressive structure design with a larger pitch on the right and a smaller pitch on the left, while the extrusion shaft 205 adopts a structure design with a smaller diameter on the right and a larger diameter on the left.

[0030] Through the above technical solution, the large pitch on the right side of the spiral blade 206 rapidly conveys materials, while the small pitch on the left side gradually increases the extrusion pressure. Combined with the change in the diameter of the extrusion shaft 205, a progressive compression space is formed, which forces the cell walls of the materials to rupture and release juice. This design can significantly improve the liquid extraction rate, and is especially suitable for high-fiber hard agricultural products such as beans and grains.

[0031] A residue collection box 214 is provided below the slag discharge port on the left side of the extraction shell 202, and a collection drawer 215 slides through the inner wall of the residue collection box 214.

[0032] Through the above technical solution, the extruded residue is discharged from the slag discharge port to the collection drawer 215. The collection drawer 215 can be manually pulled out for cleaning, so as to avoid the accumulation of residue and affect the operation of the equipment.

[0033] The bottom of the inner wall of the collection shell 209 is provided with an inclined part 217 that is higher at the rear and lower at the front. A support frame 216 is fixed on the left side of the inner wall of the extraction shell 202. The surface of the support frame 216 is rotatably connected to the left end of the extrusion shaft 205.

[0034] Through the above technical solution, the inclined part 217 guides the liquid to converge to the front, which makes it easier for manual sampling through the dropper 213. The drain valve 211 can drain the excess liquid accumulated inside the collection shell 209. The support frame 216 stabilizes the left end of the extrusion shaft 205 and prevents the shaft from swaying during the extrusion process.

[0035] The cutting mechanism 3 includes a cutting shell 301, the bottom of which is connected to the top of the feeding shell 203. The top of the cutting shell 301 is provided with a feeding port. A rotating shaft 302 is rotatably connected to the inner wall of the cutting shell 301. Multiple cutting blades 303 are fixed on the surface of the rotating shaft 302. A mounting bracket 304 is fixed on the right side surface of the cutting shell 301. A drive motor 305 is fixed on the surface of the mounting bracket 304. The output shaft of the drive motor 305 passes through the cutting shell 301 and is fixedly connected to one end of the rotating shaft 302.

[0036] Through the above technical solution, the drive motor 305 drives the rotating shaft 302 to drive the cutting blade 303 to rotate at high speed. After the material enters the cutting shell 301 from the feeding port, it is broken by the blade. The fragments fall into the extraction shell 202 below. By quickly breaking granular agricultural products, the surface area of ​​the material is increased to improve the subsequent extrusion efficiency. The design of the cutting shell 301 and the feeding shell 203 is connected to realize the continuous operation from crushing to extrusion, reduce the time consumption of intermediate links, and adapt to the needs of vehicle-mounted rapid detection.

[0037] The test strip holding mechanism 4 includes an extension plate 401, which is fixed to the top front side of the collection shell 209. A connecting plate 402 is provided below the extension plate 401. A spring 403 is fixed to the top of the connecting plate 402. The top of the spring 403 is fixedly connected to the bottom of the extension plate 401. A pull rod 404 is fixed to the surface of the connecting plate 402. The top of the pull rod 404 slides through the extension plate 401 and is fixed with a pull plate 407. A pressure plate 405 is fixed to the bottom of the pull rod 404. A backing plate 406 is fixed below the front surface of the test strip inlet of the collection shell 209. The pressure plate 405 is located above the backing plate 406.

[0038] Through the above technical solution, pulling the pull plate 407 causes the pressure plate 405 to move upward. After the test paper is inserted into the surface of the abutment plate 406 from the test paper inlet, the pull plate 407 is released, and the spring 403 resets so that the pressure plate 405 presses the test paper tightly, ensuring that the test paper can be fixed, thereby facilitating contact between the test paper and the liquid.

[0039] A guide rod 408 is fixed on the surface of the connecting plate 402. The top of the guide rod 408 slides through the extension plate 401 and is fixedly connected to the bottom of the pull plate 407. The bottom of the guide rod 408 is fixedly connected to the top of the pressure plate 405. A telescopic cover 409 is fixedly fixed on the top of the pressure plate 405. The top of the telescopic cover 409 is fixedly connected to the top of the inner wall of the test paper inlet.

[0040] Through the above technical solution, the guide rod 408 restricts the movement trajectory of the pressure plate 405 to ensure vertical pressing of the test paper; the telescopic cover 409 moves up and down with the pressure plate 405 to prevent foreign objects from entering the test paper inlet.

[0041] Its working principle is as follows: Granular agricultural products are fed into the cutting shell 301 through the feeding port. The drive motor 305 drives the cutting blade 303 on the rotating shaft 302 to rotate at high speed, breaking the material into fine particles. The crushed material enters the extraction shell 202 through the feeding shell 203. The reduction motor 204 drives the extrusion shaft 205 to rotate. The spiral blades 206 rapidly propel the material with a large pitch on the right and gradually increase the extrusion force with a small pitch on the left. The gradual compression space is formed by the change in the diameter of the extrusion shaft 205, which forces the cell walls of the material to rupture and release juice. The liquid flows into the guide shell 208 through the drainage tank 207. The guide shell 208 guides the liquid into the collection shell 209, and the inclined part 217 guides it. The liquid gathers at the front, and the liquid after testing can be discharged through the drain valve 211. The residue falls into the collection drawer 215 of the residue collection box 214 through the slag discharge port. During testing, the operator opens the operation door 210 of the collection shell 209, uses the dropper 213 to draw up the liquid, pulls up the pull plate 407 of the test paper clamping mechanism 4 to insert the test paper into the surface of the back plate 406, and releases the pull plate 407. The spring 403 drives the pressure plate 405 to press the test paper, and the liquid is dripped into the reaction area of ​​the test paper. The pesticide residue content is determined by the color development result. The guide rod 408 and the telescopic cover 409 ensure that the test paper is accurately positioned and not contaminated. The whole process realizes the integration of crushing, extraction and detection, which significantly shortens the detection cycle.

[0042] It should be noted that, although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted rapid pesticide residue detection device, characterized in that: Includes a base (1), an extraction mechanism (2) is provided on the top of the base (1), a cutting mechanism (3) is provided on the top of the extraction mechanism (2), a test paper clamping mechanism (4) is provided on the surface of the extraction mechanism (2), a shock-absorbing anti-slip pad (5) is fixed at the bottom of the base (1), and a controller (6) is fixed at the top of the base (1). The extraction mechanism (2) includes a support (201), which is fixed to the top of the base (1). An extraction shell (202) is fixed to the surface of the support (201). A feed shell (203) is connected to the top right side of the extraction shell (202). A slag discharge port is provided on the left side of the extraction shell (202). A reduction motor (204) is fixed to the right side of the surface of the extraction shell (202). The output shaft of the reduction motor (204) passes through the extraction shell (202) and is fixed to an extrusion shaft (205). A spiral blade (206) is fixed to the surface of the extrusion shaft (205). An opening is provided at the bottom of the extraction shell (202). The extraction shell (202) is connected to and fixed with a flow guide shell (208) at the bottom. The flow guide shell (208) is connected to a collection shell (209) at the bottom through a pipe. The collection shell (209) is fixed to the top of the base (1). An operation door (210) is hinged to the top of the collection shell (209). A drain valve (211) is connected to the front surface of the collection shell (209). A dropper rack (212) is fixed to the front surface of the collection shell (209). A rubber dropper (213) is slidably connected to the surface of the dropper rack (212). A test paper inlet is provided on the front surface of the collection shell (209).

2. The vehicle-mounted rapid pesticide residue detection device according to claim 1, characterized in that: The spiral blade (206) adopts a progressive structure design with a larger pitch on the right and a smaller pitch on the left, and the extrusion shaft (205) adopts a structure design with a smaller diameter on the right and a larger diameter on the left.

3. The vehicle-mounted rapid pesticide residue detection device according to claim 1, characterized in that: A residue collection box (214) is provided below the slag discharge port on the left side of the extraction shell (202), and a collection drawer (215) slides through the inner wall of the residue collection box (214).

4. The vehicle-mounted rapid pesticide residue detection device according to claim 1, characterized in that: The bottom of the inner wall of the collection shell (209) is provided with an inclined part (217) that is higher at the rear and lower at the front. A support frame (216) is fixed on the left side of the inner wall of the extraction shell (202). The surface of the support frame (216) is rotatably connected to the left end of the extrusion shaft (205).

5. The vehicle-mounted rapid pesticide residue detection device according to claim 1, characterized in that: The cutting mechanism (3) includes a cutting shell (301), the bottom of which is connected to the top of the feeding shell (203). The top of the cutting shell (301) is provided with a feeding port. A rotating shaft (302) is rotatably connected to the inner wall of the cutting shell (301). Multiple cutting blades (303) are fixed on the surface of the rotating shaft (302). A mounting bracket (304) is fixed on the right side surface of the cutting shell (301). A drive motor (305) is fixed on the surface of the mounting bracket (304). The output shaft of the drive motor (305) passes through the cutting shell (301) and is fixedly connected to one end of the rotating shaft (302).

6. The vehicle-mounted rapid pesticide residue detection device according to claim 1, characterized in that: The test strip holding mechanism (4) includes an extension plate (401), which is fixed to the top front side of the collection shell (209). A connecting plate (402) is provided below the extension plate (401). A spring (403) is fixed to the top of the connecting plate (402). The top of the spring (403) is fixedly connected to the bottom of the extension plate (401). A pull rod (404) is fixed to the surface of the connecting plate (402). The top of the pull rod (404) slides through the extension plate (401) and is fixed with a pull plate (407). A pressure plate (405) is fixed to the bottom of the pull rod (404). A stop plate (406) is fixed below the front surface of the test strip inlet of the collection shell (209). The pressure plate (405) is located above the stop plate (406).

7. The vehicle-mounted rapid pesticide residue detection device according to claim 6, characterized in that: A guide rod (408) is fixed on the surface of the connecting plate (402). The top of the guide rod (408) slides through the extension plate (401) and is fixedly connected to the bottom of the pull plate (407). The bottom of the guide rod (408) is fixedly connected to the top of the pressure plate (405). A telescopic cover (409) is fixed on the top of the pressure plate (405). The top of the telescopic cover (409) is fixedly connected to the top of the inner wall of the test paper insertion port.

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