Food pesticide residue extraction and detection equipment

Abstract

The invention relates to the technical field of food detection, in particular to food pesticide residue extraction and detection equipment which comprises a base, an outer shell and the like. And an outer shell is arranged on the base. Food is supported through a sliding plate, an electric actuator I is controlled to start to drive the sliding plate to move upwards according to the thickness of a required sample slice, the sliding plate moves to drive the food to move upwards, so that the food is exposed out of the upper edge of a limiting cylinder, and then a cylinder II and a suction cup are matched to adsorb and limit the upper part of the food; according to the food slicing and sampling device, food can be kept stable during cutting, then the food is cut through rotation of the cutter, slicing and sampling of the food are achieved, adjustment is conducted in real time according to the thickness of a required sample slice, and therefore the adaptability of slicing and sampling is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and in particular to a food pesticide residue extraction and detection device. Background Art

[0002] Pesticide residue testing is a key step in ensuring food safety. The core goal is to ensure that the pesticide content in food is within a safe range. However, based on current technical conditions, pesticides can penetrate into food, resulting in differences in pesticide residue levels at different depths of food. Therefore, sampling and testing at different depths of food is very necessary. However, at present, most sampling work relies on manual operation, that is, slicing food with a knife. This method has many disadvantages. It is impossible to adjust the thickness of the sliced ​​sample in real time according to actual testing needs, which leads to poor adaptability of the slice sampling method. In addition, this sampling method also has problems such as low efficiency and cumbersome operation. Summary of the Invention

[0003] In order to overcome the disadvantage that the thickness of the sliced ​​sample cannot be adjusted in real time according to actual detection requirements, the present invention provides a food pesticide residue extraction and detection device.

[0004] The technical implementation scheme of the present invention is as follows: a food pesticide residue extraction and detection equipment, including a base, an outer shell and a sliding door; the base is provided with an outer shell; the outer shell is slidably connected to the sliding door; the driving assembly, a cylinder I, a cutter, an electric actuator I, a limit cylinder, a sliding plate, a fixed cylinder, an electric actuator II, a cylinder II, a conduit I, a material taking assembly and a cleaning system; the outer shell is connected to the driving assembly; the outer shell is connected to the cylinder I; the cylinder I is connected to the driving assembly; the driving assembly is connected to the cutter, and the driving assembly is used to drive the cutter to move The outer shell is connected to an electric actuator I; a limiting cylinder is slidably connected to the cylinder I; a sliding plate is slidably connected in the limiting cylinder; the sliding plate is fixedly connected to the telescopic portion of the electric actuator I; the outer shell is connected to a fixed cylinder; the outer shell is connected to an electric actuator II; the telescopic portion of the electric actuator II is fixedly connected to the cylinder II; the cylinder II is slidably connected to the fixed cylinder; a conduit I is fixedly connected to the cylinder II and communicated with the cylinder II; a material taking assembly is connected to the outer shell, and the material taking assembly is used to take out the food sample from the outer shell; a cleaning system for cleaning and disinfection is provided inside the outer shell.

[0005] More preferably, an annular blade is provided on the upper portion of the limiting cylinder.

[0006] More preferably, a plurality of arc-shaped through grooves are formed on the limiting cylinder.

[0007] More preferably, the material-taking assembly includes a fixed block, a spring telescopic plate, a spline shaft, a spring telescopic rod, a tray and a limiting tube; the fixed block is fixedly connected to the outer shell; the spring telescopic plate is rotatably connected to the fixed block; the telescopic part of the spring telescopic plate is rotatably connected to the spline shaft; the spring telescopic rod is fixedly connected to the spline shaft; the tray is fixedly connected to the spline shaft; the limiting tube is fixedly connected to the outer shell; the limiting tube is slidably connected to the spline shaft; and the limiting tube is provided with a concave hole that cooperates with the spring telescopic rod.

[0008] More preferably, a semicircular limiting ring is provided on the outer side of the tray.

[0009] More preferably, it also includes a suction cup, a guide ring, a water collecting ring and a circular tube; a suction cup is fixedly connected to cylinder II, and the suction cup is made of rubber; a guide ring is fixedly connected to the limit cylinder; a water collecting ring is fixedly connected to cylinder I; a circular tube is connected to the water collecting ring, and an electromagnetic valve I is installed on the circular tube; a plurality of through holes are opened on cylinder I, and all the through holes are connected to the water collecting ring.

[0010] More preferably, the guide ring is arranged in a conical shape with a high middle portion and low surrounding portions.

[0011] More preferably, the cleaning system includes a storage box, a guide pipe, a delivery pipe, a collection box, a U-shaped frame, an L-shaped frame, a cleaning block, a baffle, a liquid inlet pipe, a solenoid valve II and a spray pipe; a storage box is installed on the outer shell; a guide pipe is fixedly connected to and connected to the storage box, and the guide pipe is made of rubber; a delivery pipe is fixedly connected to and connected to the side of the storage box away from the guide pipe; the delivery pipe is fixedly connected to and connected to the cylinder I; a collection box is slidably connected to the outer shell; at least two U-shaped frames are fixedly connected to the collection box, and each U-shaped frame has at least two through holes; at least four L-shaped frames are fixedly connected to the outer shell; a cleaning block is fixedly connected to each L-shaped frame; at least four baffles are fixedly connected to the collection box, and the baffles are made of silicone; a liquid inlet pipe is fixedly connected to the collection box; at least two solenoid valves II are installed on the liquid inlet pipe; at least two spray pipes are fixedly connected to and connected to the liquid inlet pipe; each spray pipe is provided with multiple nozzles.

[0012] More preferably, all cleaning blocks are made of sponge material.

[0013] More preferably, the nozzles on the spray pipe are arranged to be inclined toward the inner side of the collection box.

[0014] The advantages and positive effects of the present invention are: (1) The food is supported by the sliding plate, and the electric actuator I is controlled to start and move the sliding plate upward according to the thickness of the required sample slice. The movement of the sliding plate drives the food upward so that the food is exposed to the upper edge of the limiting cylinder. Then, the cylinder II and the suction cup are used to adsorb and limit the upper part of the food, so that the food remains stable during cutting. The food is then cut by rotating the cutter to achieve slicing and sampling of the food, and the thickness of the sample slice is adjusted in real time according to the required thickness, thereby improving the adaptability of slicing and sampling.

[0015] (2) The cut sample is adsorbed by the combination of cylinder II and suction cup to prevent the sample from falling, and then the sample is carried by the tray, and then the tray is rotated. After it rotates to the specified position, the sample is taken out from the tray manually using tools, thus completing the sample collection operation. The sample is then manually tested to determine the pesticide content remaining on the fruit and vegetable food.

[0016] (3) The food juice is discharged through the multiple arc-shaped through grooves opened on the side wall of the limiting cylinder. When the sliding plate moves and drives the food upward, the food and the limiting cylinder rub against each other, so that the excess juice can be discharged quickly. The juice is then diverted through the guide ring, so that the juice flows into the water collecting ring through the multiple through holes opened at equal intervals on the cylinder I, and then flows out through the circular tube connected to the water collecting ring. The juice is then collected by the collection box set in the outer shell, thereby reducing the possibility of cross infection of the sample and improving the accuracy of the test results.

[0017] (4) The juice remaining on the cutter is wiped off by the two cleaning blocks at the front, thereby reducing the occurrence of the phenomenon that the juice remaining on the cutter adheres to the next sample. Then, the pure water is sprayed onto the outer surface of the cutter through the nozzles on the two spray pipes to clean the outer surface of the cutter. Then, the larger water droplets remaining on the cutter are wiped off by the two baffles at the rear, and the moisture on the outer surface of the cutter is wiped off, thereby achieving deep cleaning of the outer surface of the cutter, thereby reducing the contamination of subsequent samples and the occurrence of cross infection, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the food pesticide residue extraction and detection equipment of the present invention; Figure 2 This is a combined sectional view of the outer shell and sliding door of the food pesticide residue extraction and detection equipment of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the driving component of the food pesticide residue extraction and detection equipment of the present invention; Figure 4This is a cross-sectional view of the assembly of the cylinder I, electric actuator I, limiting cylinder, sliding plate, guide ring and water collecting ring of the food pesticide residue extraction and detection equipment of the present invention; Figure 5 This is a schematic diagram of the docking state of the spline sleeve and the spline shaft of the food pesticide residue extraction and detection equipment of the present invention; Figure 6 This is a schematic diagram of the installation positions of the storage box, diversion pipe and delivery pipe of the food pesticide residue extraction and detection equipment of the present invention; Figure 7 This is a schematic diagram of the installation positions of the collection box, L-shaped frame and liquid inlet pipe of the food pesticide residue extraction and detection equipment of the present invention; Figure 8 This is a schematic diagram of the installation positions of the solenoid valve II and the spray pipe of the food pesticide residue extraction and detection equipment of the present invention; Figure 9 This is a partial exploded view of the cleaning system of the food pesticide residue extraction and detection equipment of the present invention.

[0019] Reference numerals in the figure: 1-base, 2-outer shell, 21-sliding door, 201-support, 202-transmission rod I, 203-handle, 204-bevel gear I, 205-cylinder I, 206-fixed plate, 207-transmission rod II, 2071-spline sleeve, 208-bevel gear II, 209-cutter, 210-electric actuator I, 211-limiting cylinder, 212-sliding plate, 213-fixed cylinder, 214-electric actuator II, 215-cylinder II, 216-conduit I, 217-suction cup, 218 - guide ring, 219- water collecting ring, 301- fixed block, 302- spring expansion plate, 303- spline shaft, 3031- spring expansion rod, 304- tray, 3041- limit ring, 305- limit tube, 2191- round tube, 401- storage box, 402- guide tube, 403- delivery tube, 404- collection box, 405- U-shaped frame, 4051- through hole, 406- L-shaped frame, 407- cleaning block, 408- baffle, 409- liquid inlet pipe, 410- solenoid valve II, 411- spray pipe. DETAILED DESCRIPTION

[0020] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0021] Example 1: A food pesticide residue extraction and detection equipment, based on Figure 1-Figure 5 As shown, it includes a base 1, an outer shell 2 and a sliding door 21; the outer shell 2 is provided on the base 1; the sliding door 21 is slidably connected to the outer shell 2; It also includes a drive assembly, a cylinder I 205, a cutter 209, an electric actuator I 210, a limiting cylinder 211, a sliding plate 212, a fixed cylinder 213, an electric actuator II 214, a cylinder II 215, a guide tube I 216, a material taking assembly and a cleaning system; the outer shell 2 is connected to the drive assembly; the outer shell 2 is connected to the cylinder I 205; the cylinder I 205 is connected to the drive assembly; the drive assembly is connected to the cutter 209; the inner bottom of the outer shell 2 is connected to the electric actuator I 210, which is an electric push rod; the cylinder I 205 is slidably connected to the limiting cylinder 211 ; A sliding plate 212 is slidably connected inside the limiting cylinder 211; the sliding plate 212 is fixedly connected to the telescopic part of the electric actuator I 210; a fixed cylinder 213 is connected to the top of the inner side of the outer shell 2; an electric actuator II 214 is connected to the top of the inner side of the outer shell 2, and the electric actuator II 214 is an electric push rod; the telescopic part of the electric actuator II 214 is fixedly connected to a cylinder II 215; the cylinder II 215 is slidably connected to the fixed cylinder 213; a conduit I 216 is fixedly connected to and connected to the cylinder II 215; the outer shell 2 is connected to the inside of the outer shell 2; a cleaning system for cleaning and disinfection is provided inside the outer shell 2.

[0022] An annular blade is provided on the upper portion of the limiting cylinder 211 for cutting food samples.

[0023] The side wall of the limiting cylinder 211 is provided with a plurality of arc-shaped through grooves for facilitating the discharge of food juice.

[0024] The material taking assembly includes a fixed block 301, a spring telescopic plate 302, a spline shaft 303, a spring telescopic rod 3031, a tray 304 and a limiting tube 305; the fixed block 301 is fixedly connected to the inner side of the outer shell 2; the spring telescopic plate 302 is rotatably connected to the fixed block 301; the telescopic part of the spring telescopic plate 302 is rotatably connected to the spline shaft 303; the spring telescopic rod 3031 is fixedly connected to the spline shaft 303; the tray 304 is fixedly connected to the spline shaft 303; the limiting tube 305 is fixedly connected to the inner side of the outer shell 2; the limiting tube 305 is slidably connected to the spline shaft 303; the inner side of the limiting tube 305 is provided with a concave hole that cooperates with the spring telescopic rod 3031.

[0025] A semicircular limiting ring 3041 is provided on the outer side of the tray 304 for limiting the position of the food sample.

[0026] It also includes a suction cup 217, a guide ring 218, a water collecting ring 219 and a circular tube 2191; a suction cup 217 is fixedly connected to the lower part of the cylinder II 215, and the suction cup 217 is made of rubber; a guide ring 218 is fixedly connected to the outer side of the limiting cylinder 211; a water collecting ring 219 is fixedly connected to the outer side of the cylinder I 205; a circular tube 2191 is connected to the water collecting ring 219, and an electromagnetic valve I is installed on the circular tube 2191; a plurality of through holes are equidistantly opened in a ring on the cylinder I 205, and all the through holes are connected to the water collecting ring 219.

[0027] The guide ring 218 is in a conical shape with a high middle portion and low surrounding portions, and is used to guide the juice of food.

[0028] The drive assembly includes a support 201, a transmission rod I 202, a handle 203, a bevel gear I 204, a fixing plate 206, a transmission rod II 207, a spline sleeve 2071 and a bevel gear II 208; the support 201 is fixed on the inner side of the outer shell 2; the transmission rod I 202 is rotatably connected to the support 201; the handle 203 is fixed to the transmission rod I 202; the handle 203 is rotatably connected to the outer shell 2, and the handle 203 passes through the outer shell 2; the transmission rod I 20 A bevel gear I 204 is fixedly connected to the end away from the handle 203; two fixed plates 206 are fixedly connected to the outside of the cylinder I 205; a transmission rod II 207 is connected to all the fixed plates 206 for common rotation; a spline sleeve 2071 is fixedly connected to the transmission rod II 207; the spline sleeve 2071 cooperates with the spline shaft 303; a bevel gear II 208 is fixedly connected to the end of the transmission rod II 207 away from the spline sleeve 2071; the bevel gear II 208 meshes with the bevel gear I 204.

[0029] The external air pump is connected to the conduit I 216 in advance, the initial position of the spline shaft 303 is located above the spline sleeve 2071, and the spring telescopic rod 3031 is inserted into the concave hole inside the limiting tube 305. When slicing and sampling fruit and vegetable foods, for the convenience of discussing fruit and vegetable foods, hereinafter referred to as food, the food is manually processed from the skin to the inside into a cylindrical shape, and then the sliding door 21 is manually opened. The processed food is then placed into the limiting cylinder 211 and supported by the sliding plate 212. Then, the electric actuator I 210 is controlled to start according to the required thickness of the sample slice, driving the sliding plate 212 to move upward. The movement of the sliding plate 212 drives the food upward, so that the food is exposed at the upper edge of the limiting cylinder 211. Then, the electric actuator II 214 is controlled to start to drive the cylinder II 215 to move downward along the fixed cylinder 213. The movement of the cylinder II 215 drives the conduit I 216 and the suction cup 217 to move downward synchronously. The suction cup 217 moves to press against the upper part of the food, and the external air pump is controlled to start operating to generate negative pressure in the cylinder II 215, and then the upper part of the food is adsorbed and limited by the cooperation of the cylinder II 215 and the suction cup 217, so that the food remains stable during cutting. The handle 203 is then manually grasped and driven to rotate. The handle 203 drives the transmission rod I 202 to rotate, and the rotation of the transmission rod I 202 drives the bevel gear I 204 to rotate. The rotation of the bevel gear I 204 drives the bevel gear II 208 to rotate. The rotation of the bevel gear II 208 drives the transmission rod II 207 to rotate. The rotation of the transmission rod II 207 drives the cutter 209 with the top of the outer shell 2 as the reference. When viewed from above, it rotates counterclockwise. The cutter 209 rotates to touch the food and cut the food. The food is cut by the rotation of the cutter 209, and the thickness of the sample slice required is adjusted in real time, thereby improving the adaptability of slice sampling.

[0030] After the food is cut by the cutter 209, the cut sample is sucked by the cylinder II 215 and the suction cup 217 to prevent the sample from falling. Then, the spring telescopic plate 302 is manually toggled to rotate the spring telescopic plate 302, thereby causing one end of the spring telescopic plate 302 away from the spline shaft 303 to rotate upward, and the other end of the spring telescopic plate 302 to rotate downward, thereby causing the spring telescopic plate 302 to rotate and drive the spline shaft 303 to slide downward along the limiting tube 305, and causing the spline shaft 303 to be inserted into the spline sleeve 2071, thereby connecting the spline shaft 303 to the spline sleeve 2071, and at the same time, the spring telescopic rod 3031 is separated from the concave hole inside the limiting tube 305, as shown in FIG. Figure 5As shown, the handle 203 is manually grasped in the same manner as described above, and the handle 203 is driven to rotate, thereby driving the transmission rod II 207 to rotate. The rotation of the transmission rod II 207 drives the spline sleeve 2071 to rotate. The rotation of the spline sleeve 2071 drives the spline shaft 303 to rotate. The rotation of the spline shaft 303 drives the tray 304 to rotate, thereby causing the tray 304 to rotate to be directly below the cylinder II 215. The external air pump is then controlled to stop operating, thereby causing the cylinder II 215 and the suction cup 217 to no longer adsorb the sample, thereby causing the sample to fall downward onto the tray 304 and be supported by the tray 304. The tray 304 is then allowed to continue rotating. After rotating to a specified position, the sample is manually removed from the tray 304 using a tool, thereby completing the sample collection operation. The sample is then manually tested to determine the pesticide content remaining on the fruits and vegetables.

[0031] It should be noted that since the food is pre-processed into a cylindrical shape from the surface to the inside, juice may easily seep out of the outer surface of the food, and the juice may flow downward along the outer surface of the food, causing cross-infection of the sample. The food juice is discharged through the multiple arc-shaped through grooves opened on the side wall of the limiting cylinder 211, and in the process of the sliding plate 212 moving the food upward, the food and the limiting cylinder 211 rub against each other, so that excess juice can be quickly discharged. After the juice flows out of the limiting cylinder 211, it will flow into the guide ring 218, and the juice will be guided by the guide ring 218, so that the juice flows into the water collecting ring 219 through the multiple through holes opened at equal intervals in an annular manner on the cylinder I 205, and then flows out through the circular tube 2191 connected to the water collecting ring 219, and then the juice is collected by the collection box 404 provided in the outer shell 2, thereby reducing the possibility of cross-infection of the sample and improving the accuracy of the test results.

[0032] Example 2: On the basis of Example 1, according to Figure 2 and Figure 6-Figure 9As shown, the cleaning system includes a storage box 401, a guide tube 402, a delivery tube 403, a collection box 404, a U-shaped frame 405, an L-shaped frame 406, a cleaning block 407, a baffle 408, a liquid inlet tube 409, a solenoid valve II 410 and a spray pipe 411; a storage box 401 is installed on the inner side of the outer shell 2; the storage box 401 is fixedly connected and connected to the guide tube 402, and the guide tube 402 is made of rubber; the storage box 401 is fixedly connected and connected to the side away from the guide tube 402; the delivery tube 403 is fixedly connected and connected to the cylinder I 205; the outer shell 2 is slidably connected to the collection box 401. Collecting box 404; two U-shaped frames 405 are fixedly connected to the collecting box 404, and each U-shaped frame 405 has two through holes 4051; four L-shaped frames 406 are fixedly connected to the inner side of the outer shell 2; each L-shaped frame 406 is fixedly connected to a cleaning block 407; four baffles 408 are fixedly connected to the inner side of the collecting box 404, and the baffles 408 are made of silicone material; a liquid inlet pipe 409 is fixedly connected to the collecting box 404; two solenoid valves II 410 are installed on the liquid inlet pipe 409; two spray pipes 411 are fixedly connected to and connected to the liquid inlet pipe 409; each spray pipe 411 is provided with a plurality of nozzles.

[0033] All cleaning blocks 407 are made of sponge material and are used to clean the cutter 209 .

[0034] The nozzles on the spray pipe 411 are tilted toward the inside of the collection box 404 to reduce the pure water from splashing to the outside of the collection box 404 .

[0035] When the cutter 209 continuously cuts the food, juice is likely to remain on the cutter 209. When the next cut is made, the juice remaining on the cutter 209 will adhere to the next sample and contaminate the subsequent sample, thereby causing cross infection and affecting the accuracy of the test results. In order to solve the above problem, the external pump for delivering pure water is connected to the liquid inlet pipe 409 in advance. After the cutter 209 cuts the food, the cutter 209 continues to rotate, with the front side of the outer shell 2 as the reference, so that the cutter 209 rotates into the collection box 404 and contacts the two cleaning blocks 407 located in the front, and squeezes the cleaning blocks 407, so that the juice remaining on the cutter 209 is wiped off by the two cleaning blocks 407 located in the front, thereby reducing the occurrence of the phenomenon that the juice remaining on the cutter 209 adheres to the next sample. Then the cutter 209 continues to rotate, and contacts the two blocking pieces 408 located in the front, and aligns with the cutting board 209. The two baffles 408 in the front cause squeezing, causing the cutter 209 to rotate between the two spray pipes 411, and then the external pump for conveying pure water is controlled to start conveying pure water into the two spray pipes 411, and the pure water is sprayed onto the outer surface of the cutter 209 through the nozzles on the two spray pipes 411. Moreover, since the nozzles on the spray pipes 411 are tilted toward the inner side of the collection box 404, the pure water splashing to the outside of the collection box 404 is reduced, thereby achieving the cleaning of the outer surface of the cutter 209, and the setting of the four baffles 408 reduces the pure water splashing into all cleaning blocks 407, which affects the use of the cleaning blocks 407.

[0036] After the outer surface of the cutter 209 is cleaned with pure water, the cutter 209 continues to rotate, so that the cutter 209 contacts the two baffles 408 at the rear and squeezes the two baffles 408 at the rear, so that the cutter 209 passes through the gap between the two baffles 408 at the rear and contacts the two baffles 408, thereby wiping off the larger water droplets remaining on the cutter 209 through the two baffles 408 at the rear. Then, as the cutter 209 continues to rotate, the cutter 209 contacts the two clean baffles 408 at the rear. The cleaning block 407 contacts and squeezes the two cleaning blocks 407 located at the rear, thereby cleaning the outer surface of the cutter 209 through the cleaning block 407 at the rear, wiping off the moisture on the outer surface of the cutter 209, thereby achieving deep cleaning of the outer surface of the cutter 209, thereby reducing the contamination of subsequent samples and the occurrence of cross infection, thereby improving the accuracy of the test results, and then the cutter 209 continues to rotate until the cutter 209 rotates out of the collection box 404, so that the cutter 209 can perform the next slice sampling.

[0037] It should be noted that after a long period of use, the two cleaning blocks 407 at the front will absorb food juice, and the two cleaning blocks 407 at the rear will absorb pure water on the surface of the cutter 209. If the cleaning blocks 407 are not processed in time, it is easy to cause the cleaning block 407 at the front to absorb more food juice and the two cleaning blocks 407 at the rear to absorb more pure water, so that all cleaning blocks 407 are close to saturation, thereby affecting the subsequent use of all cleaning blocks 407. By manually holding the liquid inlet pipe 409 and pulling the liquid inlet pipe 409 to move away from the side of the outer shell 2, the collection box 404 is driven to move by the movement of the liquid inlet pipe 409. The collection box 404 is pulled out from the outer shell 2. During this process, the movement of the collection box 404 drives the two U-shaped frames 405 to move, so that the through hole 4051 on each U-shaped frame 405 passes through the corresponding cleaning block 407 and squeezes the cleaning block 407. As a result, the food juice absorbed in the two cleaning blocks 407 in the front and the pure water absorbed in the two cleaning blocks 407 in the rear are squeezed out through the movement of the U-shaped frame 405, and the food juice and the pure water are both squeezed out, and the food juice and the pure water flow into the collection box 404. After the collection box 404 is pulled out from the outer shell 2, the food juice and the pure water are manually poured out, and then the collection box 404 is moved and reset, thereby avoiding the problem of affecting the subsequent use of the four cleaning blocks 407.

[0038] In order to further reduce the cross-infection between different samples, the solenoid valve I installed on the circular tube 2191 is controlled to be closed, and the two solenoid valves II 410 are controlled to start so that the pure water no longer flows to the two spray pipes 411, and the pure water flows along the liquid inlet pipe 409 to the guide pipe 402, and flows into the storage box 401, and then flows to the delivery pipe 403 through the storage box 401, so that the pure water flows into the cylinder I 205. Since the solenoid valve I installed on the circular tube 2191 is closed, the pure water can remain in the cylinder I 205 and submerge the limit cylinder 211, thereby immersing and cleaning the limit cylinder 211 and the sliding plate 212, further reducing the cross-infection between different samples. After the preset cleaning time is reached, the solenoid valve I installed on the circular tube 2191 is controlled to open, so that the pure water flows out through the circular tube 2191.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A food pesticide residue extraction and detection device, comprising a base (1), an outer shell (2) and a sliding door (21); the base (1) is provided with the outer shell (2); the outer shell (2) is slidably connected to the sliding door (21); the device is characterized in that: The invention also includes a drive assembly, a cylinder I (205), a cutter (209), an electric actuator I (210), a limit cylinder (211), a sliding plate (212), a fixed cylinder (213), an electric actuator II (214), a cylinder II (215), a guide tube I (216), a material taking assembly and a cleaning system; the outer shell (2) is connected to the drive assembly; the outer shell (2) is connected to the cylinder I (205); the cylinder I (205) is connected to the drive assembly; the drive assembly is connected to the cutter (209), and the drive assembly is used to drive the cutter (209) to rotate; the outer shell (2) is connected to the electric actuator I (210); the cylinder I (205) is slidably connected to the limit cylinder (211); a sliding plate (212) is slidably connected to the inner portion of the limiting cylinder (211); the sliding plate (212) is fixedly connected to the telescopic portion of the electric actuator I (210); a fixed cylinder (213) is connected to the outer shell (2); an electric actuator II (214) is connected to the outer shell (2); a cylinder II (215) is fixedly connected to the telescopic portion of the electric actuator II (214); the cylinder II (215) is slidably connected to the fixed cylinder (213); a conduit I (216) is fixedly connected to and communicated with the cylinder II (215); a material taking component is connected to the outer shell (2), and the material taking component is used to take out a food sample from the outer shell (2); a cleaning system for cleaning and disinfecting is provided inside the outer shell (2).

2. A food pesticide residue extraction and detection device according to claim 1, characterized in that: An annular blade is provided on the upper portion of the limiting cylinder (211).

3. A food pesticide residue extraction and detection device according to claim 1, characterized in that: The limiting cylinder (211) is provided with a plurality of arc-shaped through grooves.

4. The food pesticide residue extraction and detection equipment according to claim 1, characterized in that: The material taking component comprises a fixed block (301), a spring telescopic plate (302), a spline shaft (303), a spring telescopic rod (3031), a tray (304) and a limiting tube (305); the fixed block (301) is fixedly connected to the outer shell (2); the spring telescopic plate (302) is rotatably connected to the fixed block (301); the telescopic portion of the spring telescopic plate (302) is rotatably connected to the spline shaft (303); the spring telescopic rod (3031) is fixedly connected to the spline shaft (303); the tray (304) is fixedly connected to the spline shaft (303); the limiting tube (305) is fixedly connected to the outer shell (2); the limiting tube (305) is slidably connected to the spline shaft (303); and a concave hole is provided on the limiting tube (305) for matching with the spring telescopic rod (3031).

5. A food pesticide residue extraction and detection device according to claim 4, characterized in that: A semicircular limiting ring (3041) is provided on the outer side of the tray (304).

6. A food pesticide residue extraction and detection device according to any one of claims 1 to 5, characterized in that: The invention also includes a suction cup (217), a guide ring (218), a water collecting ring (219) and a circular tube (2191); the suction cup (217) is fixedly connected to the cylinder II (215), and the suction cup (217) is made of rubber; the guide ring (218) is fixedly connected to the limiting cylinder (211); the water collecting ring (219) is fixedly connected to the cylinder I (205); the water collecting ring (219) is connected to the circular tube (2191), and the circular tube (2191) is equipped with an electromagnetic valve I; a plurality of through holes are opened on the cylinder I (205), and all the through holes are connected to the water collecting ring (219).

7. A food pesticide residue extraction and detection device according to claim 6, characterized in that: The guide ring (218) is arranged in a conical shape with a high middle portion and low surrounding portions.

8. The food pesticide residue extraction and detection equipment according to claim 7, characterized in that: The cleaning system comprises a storage box (401), a flow guide pipe (402), a delivery pipe (403), a collection box (404), a U-shaped frame (405), an L-shaped frame (406), a cleaning block (407), a baffle (408), a liquid inlet pipe (409), a solenoid valve II (410) and a spray pipe (411); the storage box (401) is installed on the outer shell (2); the storage box (401) is fixedly connected to and communicated with the flow guide pipe (402), and the flow guide pipe (402) is made of rubber; the storage box (401) is fixedly connected to and communicated with the delivery pipe (403) on the side away from the flow guide pipe (402); the delivery pipe (403) is fixedly connected to and communicated with the cylinder I (205); the collection box (401) is slidably connected to the outer shell (2) 04); at least two U-shaped frames (405) are fixedly connected to the collection box (404), and each U-shaped frame (405) has at least two through holes (4051); at least four L-shaped frames (406) are fixedly connected to the outer shell (2); each L-shaped frame (406) is fixedly connected to a cleaning block (407); at least four baffles (408) are fixedly connected to the collection box (404), and the baffles (408) are made of silicone material; a liquid inlet pipe (409) is fixedly connected to the collection box (404); at least two solenoid valves II (410) are installed on the liquid inlet pipe (409); at least two spray pipes (411) are fixedly connected to and communicated with the liquid inlet pipe (409); each spray pipe (411) is provided with a plurality of nozzles.

9. The food pesticide residue extraction and detection equipment according to claim 8, characterized in that: All cleaning blocks (407) are made of sponge.

10. The food pesticide residue extraction and detection equipment according to claim 8, characterized in that: The nozzle on the spray pipe (411) is arranged to be inclined toward the inner side of the collection box (404).

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