Fruit and vegetable surface pesticide detection device

By integrating side spraying components and water inlet components, the pesticide detection device for fruit and vegetable surfaces solves the problem of cross-contamination caused by sample transfer, achieves seamless detection and dynamic monitoring of pesticide residues, and improves the accuracy and reliability of detection.

CN224109463UActive Publication Date: 2026-04-10北京市丰台区农产品质量安全检验检测站(北京市丰台区种子质量监督检验站)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing technologies for detecting pesticide residues on fruit and vegetable surfaces require repeated sample transfers, which makes it difficult to accurately reflect the pesticide dissolution process during washing and can easily lead to cross-contamination.

Method used

A pesticide detection device for fruit and vegetable surfaces was designed, which integrates a side spraying component and a water inlet component to achieve all-round rinsing. The device also collects pesticide samples through a pull-out detection component to avoid sample transfer, and combines multiple test tubes to achieve dynamic monitoring.

Benefits of technology

It enables end-to-end detection without the need to transfer samples, avoiding cross-contamination, and making the test results more reliable. It can simulate real cleaning scenarios and dynamically monitor changes in pesticide residues.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a fruit and vegetable surface pesticide detection device, which relates to the technical field of fruit and vegetable pesticide detection, and comprises a cleaning detection box, a plurality of fruit and vegetable detection storage boxes arranged in parallel are placed on the cleaning detection box, and a water inlet assembly in the cleaning detection box is installed in the cleaning detection box. And the water inlet assembly communicates with a side spraying part of which the side is used for washing away fruit and vegetable liquid medicine in the fruit and vegetable detection storage box. The water inlet assembly is integrated with the side spraying part to form a two-way spraying structure, fruits and vegetables to be detected in the fruit and vegetable detection storage box can be flushed in all directions, it is guaranteed that the fruits and vegetables in the batch are completely flushed, pesticide left on fruit trees can be flushed away along with cleaning water, and therefore the fruit and vegetable detection efficiency is improved. And a detection assembly below the fruit and vegetable detection storage box is matched to collect samples of pesticide residues on the surfaces of the fruits and vegetables while cleaning, so that the pesticide residues can be detected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fruit and vegetable pesticide detection technical field, especially a fruit and vegetable surface pesticide detection device. BACKGROUND

[0002] Fruit and vegetable surface pesticide residue refers to the chemical pesticide residues sprayed on the surface of fruits and vegetables in the agricultural production process to prevent and control pests. These residues may enter the human body through the food chain, and long-term accumulation can cause potential harm to health, such as damage to the nervous system, endocrine interference, and even cancer risk. Therefore, it is of great significance to establish an efficient and accurate pesticide residue detection method to ensure food safety.

[0003] Currently, fruit and vegetable surface pesticide residue detection usually adopts the way of sending samples to the laboratory for analysis. Since the detection assembly and the cleaning system are separated, the sample needs to be repeatedly transferred during operation, which not only easily causes cross contamination, but also is difficult to truly reflect the dissolution rule of pesticides in the cleaning process. Therefore, a fruit and vegetable surface pesticide detection device is provided to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of repeated sample transfer during operation and difficulty in truly reflecting the pesticide dissolution in the cleaning process in the prior art, and provides a fruit and vegetable surface pesticide detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A fruit and vegetable surface pesticide detection device, comprising a cleaning detection box, a plurality of fruit and vegetable detection storage boxes are placed on the cleaning detection box in parallel, a water inlet assembly is installed inside the cleaning detection box, and a side edge spray cleaning part for washing the internal fruit and vegetable pesticide solution of the fruit and vegetable detection storage box side edge is connected to the water inlet assembly;

[0007] Among them, the cleaning detection box is slidably connected with a detection assembly for containing pesticide detection on the side edge, and the detection assembly is located below the plurality of fruit and vegetable detection storage boxes;

[0008] The water inlet assembly comprises a water pump, the water pump is installed on the side edge of the cleaning detection box, the water outlet of the water pump is connected with a main water pipe, the water inlet of the water pump is connected with an external water supply end, and the end of the main water pipe away from the water pump penetrates the cleaning detection box and is connected with a bottom cleaning pipe.

[0009] Preferably, the bottom of the cleaning detection box is provided with a water outlet valve, and the back of the cleaning detection box is provided with a water collecting bucket, which is located below the side edge spray cleaning part.

[0010] Preferably, the bottom layer cleaning pipe is installed at the bottom of the inner wall of the cleaning and detecting box, and a plurality of bottom layer nozzles are formed on the bottom layer cleaning pipe and face the fruit and vegetable detecting and storing box.

[0011] Preferably, the fruit and vegetable detecting and storing box comprises a frame, the frame is clamped with the cleaning and detecting box, a cleaning net is installed at the bottom of the frame, and a cover plate is clamped at the top of the frame.

[0012] Preferably, the side edge washing part comprises a servo motor, the servo motor is installed at the top of the cleaning and detecting box, a threaded rod is fixedly connected with the output shaft of the servo motor through a shaft coupling, the bottom of the threaded rod is rotatably connected with the bottom of the inner wall of the cleaning and detecting box, a threaded ring is threadedly connected with the threaded rod, the threaded ring is slidably connected with the inner wall of the cleaning and detecting box, the inner wall of the cleaning and detecting box is further slidably connected with a limiting sliding block, a support frame is installed between the threaded ring and the limiting sliding block, a rotating rod is installed on the support frame, and a plurality of groups of side nozzles are rotatably connected with the rotating rod.

[0013] Preferably, the water inlet end of each group of side nozzles is provided with a connecting hose, and the water outlet end of each connecting hose is connected with an adjacent bottom layer cleaning pipe.

[0014] Preferably, a push plate is installed on each group of side nozzles, and a damping block is arranged at the rotating connection position of each group of side nozzles and the rotating rod.

[0015] Preferably, the detecting assembly comprises a transverse supporting rod, one end of the transverse supporting rod is clamped with the inner wall of the cleaning and detecting box, the other end of the transverse supporting rod extends out of the cleaning and detecting box, a pulling handle is installed on the extending end of the transverse supporting rod, a rubber ring is arranged at the connecting position between the extending end of the transverse supporting rod and the cleaning and detecting box, and a plurality of detection test tubes are inserted into the transverse supporting rod.

[0016] Compared with the prior art, the device has the following advantages and positive effects:

[0017] 1. The device forms a bidirectional washing structure through the water inlet assembly and the side edge washing part, can perform omnidirectional flushing on the fruits and vegetables to be detected in the fruit and vegetable detecting and storing box, ensures that the fruits and vegetables in the batch are completely washed, and at the same time, the residual pesticides on the fruit trees are washed away with the washing water, and the detection assembly under the fruit and vegetable detecting and storing box collects samples of the residual pesticides on the surface of the fruits and vegetables during washing, so as to detect the residual pesticides.

[0018] 2. The detection assembly adopts a pull-out type transverse supporting rod design, is matched with a plurality of detection test tubes and an anti-overflow rubber ring, and can quickly replace the test tubes at different time nodes such as 1 minute, 5 minutes and 10 minutes, so as to realize dynamic monitoring of the change trend of the pesticide residue amount in the washing process.

[0019] 3. The device does not need to transfer the sample from water injection, spraying to sampling, avoids cross contamination, the adjustable spraying system can simulate the real cleaning scene, the detection result is more referable; the double drainage design of the water receiving hopper and the water outlet valve ensures the cleanliness of the experimental environment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a local three-dimensional sectional view of the first perspective of the utility model;

[0022] Figure 3 It is a local three-dimensional sectional view of the second perspective of the utility model;

[0023] Figure 4 It is a perspective view of the fruit and vegetable detection storage box in the utility model;

[0024] Figure 5 It is a first perspective three-dimensional view of the water inlet assembly and the side edge spray cleaning piece connection in the utility model;

[0025] Figure 6 It is a second perspective three-dimensional view of the water inlet assembly and the side edge spray cleaning piece connection in the utility model;

[0026] Figure 7 It is a three-dimensional view of the utility model Figure 6 The enlarged schematic view of A in the utility model.

[0027] Legend: 1, cleaning detection box; 11, water outlet valve; 12, water receiving hopper; 2, water inlet assembly; 21, main water pipe; 22, water pump; 23, bottom layer cleaning pipe; 24, bottom layer spray head; 3, fruit and vegetable detection storage box; 31, cover plate; 32, frame; 33, cleaning net; 4, side edge spray cleaning piece; 41, servo motor; 42, threaded rod; 43, threaded ring; 44, support frame; 45, side spray head; 46, rotating rod; 47, push plate; 48, limit sliding block; 49, connecting hose; 5, detection assembly; 51, horizontal support rod; 52, detection test tube; 53, rubber ring; 54, pull handle. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purpose, features and advantages of the utility model more clearly understood, the utility model is further described below in combination with the drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figures 1-7 As shown, this utility model provides a pesticide detection device for fruit and vegetable surfaces, including a cleaning and detection box 1, on which multiple parallel fruit and vegetable detection storage boxes 3 are placed. A water inlet component 2 is installed inside the cleaning and detection box 1, and a side spraying component 4 is connected to the water inlet component 2 to rinse away the pesticide solution inside the fruit and vegetable storage boxes 3 from the side.

[0031] The cleaning and testing box 1 has a sliding connection to a testing component 5 for holding the testing solution. The testing component 5 is located below multiple fruit and vegetable testing and storage boxes 3. The water inlet component 2 includes a water pump 22, which is installed on the side of the cleaning and testing box 1. The outlet of the water pump 22 is connected to a main water pipe 21, and the inlet of the water pump 22 is connected to an external water supply. The end of the main water pipe 21 away from the water pump 22 passes through the cleaning and testing box 1 and is connected to the bottom cleaning pipe 23. A water outlet valve 11 is installed at the bottom of the cleaning and testing box 1, and a water receiving hopper 12 is installed on the back of the cleaning and testing box 1. The water receiving hopper 12 is located below the side spray washing component 4.

[0032] In this embodiment, the bottom cleaning pipe 23 is installed at the bottom of the inner wall of the cleaning and testing box 1, and multiple bottom nozzles 24 facing the fruit and vegetable testing and storage box 3 are provided on the bottom cleaning pipe 23.

[0033] After water is pumped into the main water pipe 21, water is supplied to the bottom cleaning pipe 23 through the main water pipe 21. The bottom cleaning pipe 23 sprays water onto the vegetables in the cleaning net 33 through the bottom nozzle 24.

[0034] In this embodiment, the fruit and vegetable testing and storage box 3 includes a frame 32, which is engaged with the cleaning and testing box 1. A cleaning net 33 is installed at the bottom of the frame 32, and a cover plate 31 is engaged at the top of the frame 32.

[0035] After opening the cover plate 31, place the corresponding fruits and vegetables to be sampled into the cleaning net 33 supported by the frame 32, and then close the cover plate 31.

[0036] In the embodiment, the side edge spray cleaning part 4 comprises a servo motor 41, the servo motor 41 is installed on the top of the cleaning detection box 1, the output shaft of the servo motor 41 is fixedly connected with a threaded rod 42 through a shaft coupling, the bottom of the threaded rod 42 is rotatably connected with the bottom of the inner wall of the cleaning detection box 1, a threaded ring 43 is threadedly connected on the threaded rod 42, the threaded ring 43 is slidably connected with the inner wall of the cleaning detection box 1, and the inner wall of the cleaning detection box 1 is also slidably connected with a limiting sliding block 48, a support frame 44 is installed between the threaded ring 43 and the limiting sliding block 48, a rotating rod 46 is installed on the support frame 44, a plurality of lateral nozzles 45 are rotatably connected on the rotating rod 46, a connecting hose 49 is installed on the water inlet end of each lateral nozzle 45, one end of each connecting hose 49 away from the lateral nozzle 45 is connected with an adjacent bottom layer cleaning pipe 23, a push plate 47 is installed on each lateral nozzle 45, and a damping block is arranged at the rotating connection position of the lateral nozzle 45 and the rotating rod 46.

[0037] The side edge spray cleaning part 4 can also be adjusted as needed while spraying water. When adjusting the height, only the servo motor 41 is started to drive the threaded rod 42 to rotate, and under the limiting of the support frame 44, the support frame 44 and the limiting sliding block 48, the plurality of lateral nozzles 45 can be raised or lowered. When the spray angle needs to be adjusted, only the push plate 47 on the corresponding lateral nozzle 45 is pushed, and because of the damping effect between the lateral nozzle 45 and the rotating rod 46, the lateral nozzle 45 can be stopped at the position after the push plate 47 is pushed, and the adjustment is also relatively convenient.

[0038] In the embodiment, the detection assembly 5 comprises a transverse support rod 51, one end of the transverse support rod 51 is clamped with the inner wall of the cleaning detection box 1, and the other end of the transverse support rod 51 extends out of the cleaning detection box 1, a pulling handle 54 is installed on the extended end of the transverse support rod 51, a rubber ring 53 is arranged at the connection position of the extended end of the transverse support rod 51 and the cleaning detection box 1, and a plurality of detection test tubes 52 are inserted into the transverse support rod 51.

[0039] When the side edge spray cleaning part 4 and the water inlet assembly 2 spray water, the vegetables are washed and the residual pesticide mixed water is dropped into the plurality of detection test tubes 52 supported by the transverse support rod 51, and after collection, the transverse support rod 51 can be pulled out together with the corresponding detection test tubes 52, and at this time, the rubber ring 53 plays a role of preventing water overflow.

[0040] Further, a three-way valve can be arranged at the communication position of the main water pipe 21, the bottom layer cleaning pipe 23 and the connecting hose 49, so as to select whether to supply water to the side edge spray cleaning part 4 or to the bottom layer cleaning pipe 23 or to supply water at the same time.

[0041] The use method and working principle of the device are as follows:

[0042] The device in use, first is the water inlet of water pump 22 and the external water supply end connected, and the water supply end can join the detection agent, the detection agent can be in contact with pesticides to a certain value, the water into the detection test tube 52 can develop color;

[0043] Subsequently, the cover plate 31 is opened, and the corresponding fruit and vegetable to be sampled is placed in the cleaning net 33 supported by the frame 32, and then the cover plate 31 is closed. Start the water pump 22, and then the water is pumped into the main water pipe 21. The water is supplied to the bottom cleaning pipe 23 through the main water pipe 21. The bottom cleaning pipe 23 sprays water to the bottom of the fruit and vegetable detection storage box 3 through the bottom nozzle 24, and the water is sprayed on the vegetables in the cleaning net 33.

[0044] The water flow enters the lateral nozzle 45 through the connecting hose 49 in the side washing part 4, and sprays on the vegetables in the cleaning net 33, realizing lateral and bottom water spraying.

[0045] When the side washing part 4 and the water inlet assembly 2 spray water, the vegetables are washed and the residual pesticide mixed water is dropped into the multiple detection test tubes 52 supported by the horizontal support rod 51. After collection, the horizontal support rod 51 is pulled to drive the horizontal support rod 51 and the corresponding detection test tube 52 to be extracted, and then the detection test tube 52 is taken away for detection. At this time, the rubber ring 53 prevents water overflow, and the entire detection process can be divided into multiple detections after one minute, five minutes and ten minutes of water spraying. Only the detection assembly 5 needs to be pulled to replace the detection test tube 52, which is convenient and fast, and realizes the detection of pesticide residues in the same batch of vegetables after multiple cleaning.

[0046] The side washing part 4 can also be adjusted as needed while spraying water. When adjusting the height, only the servo motor 41 is started to drive the threaded rod 42 to rotate. Under the limiting of the support frame 44, the support frame 44 and the limiting sliding block 48, the multiple lateral nozzles 45 can be raised or lowered. When the spray angle needs to be adjusted, only the dial plate 47 on the corresponding lateral nozzle 45 needs to be dialed. Because of the damping action between the lateral nozzle 45 and the rotating rod 46, the dial plate 47 can also make the lateral nozzle 45 stop at the corresponding position after dialing, which is also convenient to adjust.

[0047] After the sampling is completed, the batch of fruits and vegetables is also cleaned, and the water flow can be discharged through the water outlet valve 11. The water flow that leaks behind the cleaning and detection box 1 is also collected by the water collecting bucket 12.

[0048] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in other forms, and any skilled person in the art can change or modify the above disclosed technology content to equivalent embodiments with equivalent changes applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still fall within the protection scope of the present application.

Claims

1. A pesticide detection device for fruit and vegetable surface, comprising a cleaning detection box (1), characterized in that: The cleaning detection box (1) is provided with a plurality of fruit and vegetable detection storage boxes (3) arranged in parallel, and a water inlet assembly (2) is installed in the cleaning detection box (1); the water inlet assembly (2) is communicated with a side edge spray (4) for washing away the internal fruit and vegetable liquid from the side edge of the fruit and vegetable detection storage box (3). The cleaning detection box (1) is provided with a plurality of fruit and vegetable detection storage boxes (3) arranged in parallel, and a water inlet assembly (2) is installed in the cleaning detection box (1); the water inlet assembly (2) is communicated with a side edge spray (4) for washing away the internal fruit and vegetable liquid from the side edge of the fruit and vegetable detection storage box (3). The water inlet assembly (2) comprises a water pump (22) installed on the side edge of the cleaning detection box (1); the water outlet of the water pump (22) is communicated with a main water pipe (21); the water inlet of the water pump (22) is communicated with an external water supply end; and the end of the main water pipe (21) away from the water pump (22) penetrates through the cleaning detection box (1) and is communicated with a bottom layer cleaning pipe (23).

2. The device for detecting pesticide on the surface of fruits and vegetables according to claim 1, characterized in that: The bottom of the cleaning detection box (1) is provided with a water outlet valve (11), and the back of the cleaning detection box (1) is provided with a water collecting bucket (12) located below the side edge spray (4).

3. The device for detecting pesticide on the surface of fruits and vegetables according to claim 1, characterized in that: The bottom layer cleaning pipe (23) is installed on the bottom of the inner wall of the cleaning detection box (1), and a plurality of bottom layer nozzles (24) are arranged on the bottom layer cleaning pipe (23) and face the fruit and vegetable detection storage box (3).

4. The device for detecting pesticide on the surface of fruits and vegetables according to claim 3, characterized in that: The fruit and vegetable detection storage box (3) comprises a frame (32) which is clamped with the cleaning detection box (1); the bottom of the frame (32) is provided with a cleaning net (33); and the top of the frame (32) is clamped with a cover plate (31).

5. The device for detecting pesticide on the surface of fruits and vegetables according to claim 3, characterized in that: The side edge spray (4) comprises a servo motor (41) installed on the top of the cleaning detection box (1); the output shaft of the servo motor (41) is fixedly connected with a threaded rod (42) through a shaft coupling; the bottom of the threaded rod (42) is rotatably connected with the bottom of the inner wall of the cleaning detection box (1); the threaded rod (42) is threadedly connected with a threaded ring (43); the threaded ring (43) is slidably connected with the inner wall of the cleaning detection box (1); the inner wall of the cleaning detection box (1) is also slidably connected with a limiting sliding block (48); the threaded ring (43) and the limiting sliding block (48) are provided with a support frame (44); the support frame (44) is installed on a rotating rod (46); and a plurality of groups of side nozzles (45) are rotatably connected with the rotating rod (46).

6. The device for detecting pesticide on the surface of fruits and vegetables according to claim 5, characterized in that: The water inlets of the plurality of groups of side nozzles (45) are provided with connecting hoses (49), and the ends of the plurality of connecting hoses (49) away from the side nozzles (45) are communicated with adjacent bottom layer cleaning pipes (23).

7. The device for detecting pesticide on the surface of fruits and vegetables according to claim 6, characterized in that: The plurality of groups of side nozzles (45) are provided with a plurality of groups of push plates (47), and the rotating connection positions of the plurality of groups of side nozzles (45) and the rotating rod (46) are provided with damping blocks.

8. The device for detecting pesticide on the surface of fruits and vegetables according to claim 1, characterized in that: The detection assembly (5) comprises a transverse support rod (51), one end of the transverse support rod (51) is engaged with the inner wall of the cleaning detection box (1), and the other end of the transverse support rod (51) penetrates and extends out of the cleaning detection box (1), a pulling handle (54) is installed on the extended end of the transverse support rod (51), a rubber ring (53) is arranged at the connection between the extended end of the transverse support rod (51) and the cleaning detection box (1), and a plurality of detection test tubes (52) are inserted on the transverse support rod (51).