Pretreatment structure for food pesticide residue detection
By designing a pretreatment structure for pesticide residue detection in food, and employing a crushing, grinding, and filtration mechanism, the problems of low processing efficiency and easy sample contamination in traditional methods are solved, achieving an automated and efficient pretreatment process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional food pesticide residue detection pretreatment steps rely on manual step-by-step operations, which are inefficient and the samples are easily contaminated.
Design a pretreatment structure including a support frame and a crushing and grinding box, equipped with a crushing and grinding mechanism and a filtration and impurity removal mechanism. The sample is transported by an inclined guide plate and a vibrator and automatically filtered through first and second filter screens, reducing manual operation and avoiding filter clogging.
It eliminates the need for repeated manual operations, improves pretreatment efficiency, reduces the risk of sample contamination, and simplifies the operation steps.
Smart Images
Figure CN224035042U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food pesticide residue detection technical field especially, a kind of pretreatment structure for food pesticide residue detection. BACKGROUND
[0002] Pesticide residue refers to the microtrace pesticide original body, toxic metabolite, degradation product and impurity that are not decomposed and remain in organism, harvest, soil, water body, atmosphere in a period after pesticide use.The residual pesticide can reach human and livestock by plant fruit or water, atmosphere etc., or is ultimately transmitted to human and livestock through environment, food chain, and poses potential threat to human health.Therefore, food pesticide residue detection is crucial for food safety.
[0003] But traditional pretreatment step for food pesticide residue detection has low processing efficiency, complex operation and is easy to be polluted, therefore, an urgent need for a kind of pretreatment structure for food pesticide residue detection to solve the above problems.
[0004] For example: when detecting pesticide residue of an apple, the traditional pretreatment step is to chop, extract and centrifugal filter the washed apple, and the traditional method relies on manual step-by-step operation, and has low processing efficiency and sample is easy to be polluted. INVENTION CONTENTS
[0005] The utility model discloses a kind of pretreatment structure for food pesticide residue detection, to solve the technical problem that traditional pretreatment method relies on manual step-by-step operation, processing efficiency is low, sample is easy to be polluted.
[0006] To achieve the above object, the utility model adopts the following technical scheme:
[0007] A kind of pretreatment structure for food pesticide residue detection, including support frame and broken grinding box, further including: the comminution grinding mechanism is arranged in the inside of the broken grinding box;Filtering and impurity removing mechanism: the filtering and impurity removing mechanism includes the inclined guide plate connected on the inner side wall of the broken grinding box, the middle of the inclined guide plate is provided with filter tank, the filter tank is close to the side of the inclined guide plate and is provided with the inclined first filter screen, the lower end of the first filter screen is connected with slag discharge port, the slag discharge port is connected with broken slag collection pump, the side, away from the filter tank of the first filter screen, is provided with discharge hopper, the top of the discharge hopper is provided with second filter screen.
[0008] In the scheme, the filtering and impurity removing mechanism can automatically filter and discharge slag through the slag discharge port without manual repeated operation, avoids introducing human error, improves efficiency, and in specific use, the food ground and crushed is transported to the filter tank through the inclined guide plate, then primary filtering is performed through the first filter screen, a large amount of crushed slag after primary filtering is moved to the lower end of the first filter screen through the inclined setting, then is collected in the crushed slag collection tank through the slag discharge port, effectively avoiding the need for manual repeated slag removal due to filter screen blockage, then the sample after primary filtering is loaded into the target container in batches through the second filter screen after secondary filtering through the discharge hopper.
[0009] In a preferred scheme, the bottom of the inclined guide plate is provided with a vibrating machine.
[0010] The combined setting of the inclined guide plate and the vibrating machine can effectively transport the food ground and crushed into the material conveying tank, improving the pretreatment efficiency of the food.
[0011] In a preferred scheme, the filter tank and the crushing and grinding box are connected through sliding rails, the bottom of the support frame is provided with a sample collection box, and the sample collection box and the support frame are connected through sliding rails.
[0012] The sliding rail connection setting can pull out the filter tank, facilitating cleaning and replacing the filter screen, and when collecting the sample, the target container is placed in the sample collection box, and the sample collection box is pushed and pulled into the support frame, so that the sample collection box and the target container can be replaced and taken out conveniently.
[0013] As known from the above, the pretreatment structure for food pesticide residue detection comprises a support frame and a crushing and grinding box, and further comprises: a crushing and grinding mechanism, which is arranged in the interior of the crushing and grinding box; a filtering and impurity removing mechanism, which comprises an inclined guide plate connected to the inner side wall of the crushing and grinding box, a filter tank arranged in the middle of the inclined guide plate, an inclined first filter screen arranged on the side of the filter tank close to the inclined guide plate, a slag discharge port connected to the lower end of the first filter screen, a crushed slag collection tank connected to the slag discharge port, an discharge hopper arranged on the side of the filter tank away from the first filter screen, and a second filter screen arranged at the top end of the discharge hopper. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The whole structure schematic view of the pretreatment structure for food pesticide residue detection is provided.
[0015] Figure 2 A cross-sectional structure schematic view of a pretreatment structure for food pesticide residue detection is provided in the utility model.
[0016] Figure 3 An internal structure schematic view of a pretreatment structure for food pesticide residue detection is provided in the utility model.
[0017] Figure 4 A filter collection assembly schematic view of a pretreatment structure for food pesticide residue detection is provided in the utility model.
[0018] In the drawings: 1, support frame; 2, crushing grinding box; 3, feed hopper; 4, slag collection; 5, crushing knife; 6, telescopic partition; 7, grinding roller; 8, inclined guide plate; 9, vibration machine; 10, filter tank; 11, first filter screen; 12, second filter screen; 13, discharge hopper; 14, slag discharge port; 15, sample collection box. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0021] The pretreatment structure for food pesticide residue detection disclosed by the utility model mainly applies the traditional pretreatment method to rely on manual step-by-step operation, and the processing efficiency is low, and the sample is easy to be contaminated.
[0022] Reference Figure 1 , Figure 2 and Figure 3The application discloses a pretreatment structure for food pesticide residue detection, which comprises a support frame 1 and a crushing and grinding box 2, and further comprises: a crushing and grinding mechanism arranged in the crushing and grinding box 2; and a filtering and impurity removing mechanism comprising an inclined material guide plate 8 connected to the inner side wall of the crushing and grinding box 2, wherein a filter tank 10 is arranged in the middle of the inclined material guide plate 8, an inclined first filter screen 11 is arranged on one side of the filter tank 10 close to the inclined material guide plate 8, a slag discharge port 14 is connected to the lower end of the first filter screen 11, a slag collecting tank 4 is connected to the slag discharge port 14, and a discharge hopper 13 is arranged on the side of the filter tank 10 away from the first filter screen 11, and a second filter screen 12 is arranged at the top end of the discharge hopper 13.
[0023] Specifically, the crushed and ground food is conveyed to the filter tank 10 through the inclined material guide plate 8, then is subjected to primary filtration through the first filter screen 11, a large amount of slag subjected to the primary filtration is moved to the lower end of the first filter screen 11 through the inclined first filter screen 11, then is collected in the slag collecting tank through the slag discharge port 14, and the slag is effectively collected without manual repeated slag removing due to the clogging of the filter screen, then the sample subjected to the primary filtration is subjected to secondary filtration through the second filter screen 12 when entering the discharge hopper 13, and is then loaded into a target container in batches through the discharge hopper 13.
[0024] Specifically, the bottom of the inclined material guide plate 8 is provided with a vibrating machine 9.
[0025] Specifically, the combined arrangement of the inclined material guide plate and the vibrating machine 9 can effectively convey the crushed and ground food to the material conveying tank, and improve the pretreatment efficiency of the food.
[0026] Specifically, the slag discharge port 14 is slightly higher than the edge of the first filter screen.
[0027] Specifically, when the slag is collected, the sample is prevented from flowing into the slag collecting tank 4, and waste is avoided.
[0028] Referring to Figure 2 and Figure 3 In a preferred embodiment, the crushing and grinding mechanism comprises a feeding hopper 3 arranged at the top of the crushing and grinding box 2, a crushing knife 5 arranged in the crushing and grinding box 2, and three rows of mutually meshing grinding rollers 7 arranged below the crushing knife 5, wherein the crushing knife 5 and the grinding rollers 7 are driven by a driving motor (not shown in the figure).
[0029] Specifically, the mutual cooperation of the crushing knife 5 and the grinding rollers 7 can effectively improve the crushing efficiency of the food and facilitate subsequent extraction and treatment.
[0030] Specifically, the crushing knife 5 and the grinding rollers 7 are arranged with a telescopic partition plate 6.
[0031] Specifically, the telescopic partition plate 6 can effectively prevent large-volume food from falling and breaking in the crushing and grinding box 2, affecting the processing efficiency, and the telescopic process can effectively clean the material adhered to the surface of the partition plate, which can improve the grinding efficiency of the material and effectively improve the production efficiency of the sample.
[0032] Referring to Figure 1 and Figure 4 In a preferred embodiment, the filter tank 10 is connected with the crushing and grinding box 2 through a sliding rail.
[0033] Specifically, the filter tank 10 can be pulled out through the sliding rail connection, which facilitates cleaning and replacing the filter screen.
[0034] Specifically, the sample collection box 15 is provided at the bottom of the support frame 1, and the sample collection box 15 is connected with the support frame 1 through a sliding rail.
[0035] Specifically, when collecting the sample, the target container is placed in the sample collection box 15, and the sample collection box 15 is pushed and pulled into the support frame 1, which facilitates the replacement and taking and placing of the sample collection box 15 and the target container.
[0036] Working principle: in specific use, only need to put the washed food from the feeding hopper 3 into the crushing and grinding box 2, then crush, and then the food fragments enter the second stage for repeated grinding, the ground material is initially filtered through the first filter screen 11, the crushed residue is discharged from the residue discharge port 14, and the sample after the initial filtration is finally collected in the target container through the second filter screen 12 after the secondary filtration.
[0037] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a partial structure, device, method step replacement, or a complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.
Claims
1. A pretreatment structure for food pesticide residue detection, comprising a support frame (1) and a crushing grinding box (2), characterized in that, Also include: Crushing grinding mechanism: the crushing grinding mechanism is arranged in the inside of the crushing grinding box (2); Impurity filtering mechanism: the impurity filtering mechanism includes an inclined guide plate (8) connected to the inner side wall of the crushing grinding box (2), a filter tank (10) is arranged in the middle of the inclined guide plate (8), an inclined first filter screen (11) is arranged on one side of the filter tank (10) close to the inclined guide plate (8), one end of the first filter screen (11) is connected with a slag discharge port (14), the slag discharge port (14) is connected with a slag collecting tank (4), a discharge hopper (13) is arranged on the side of the filter tank (10) away from the first filter screen (11), and a second filter screen (12) is arranged at the top of the discharge hopper (13).
2. The pretreatment structure for food pesticide residue detection according to claim 1, wherein, The bottom of the inclined guide plate (8) is provided with a vibrating machine (9).
3. The pretreatment structure for food pesticide residue detection according to claim 1, wherein, The crushing grinding mechanism includes a feeding hopper (3) arranged at the top of the crushing grinding box (2), a crushing knife (5) is arranged in the crushing grinding box (2), and three rows of grinding rollers (7) are arranged below the crushing knife (5) and meshed with each other.
4. The pretreatment structure for food pesticide residue detection according to claim 3, wherein, The crushing knife (5) and the grinding roller (7) are provided with an expansion partition plate (6).
5. The pretreatment structure for food pesticide residue detection according to claim 1, wherein, The filter tank (10) is connected with the crushing grinding box (2) through a sliding rail.
6. The pretreatment structure for food pesticide residue detection according to claim 1, wherein, The bottom of the support frame (1) is provided with a sample collecting box (15), and the sample collecting box (15) is connected with the support frame (1) through a sliding rail.
7. The pretreatment structure for food pesticide residue detection according to claim 1, wherein, The slag discharge port (14) is slightly higher than the edge of the first filter screen.