A drug residue detection device for aquatic product quality and safety

Abstract

The present invention discloses a drug residue detection device for aquatic product quality and safety, which relates to the technical field of aquatic product drug detection. The device comprises a sampling mechanism and a pressing plate installed on the top of the sampling mechanism. A detection mechanism is provided at the bottom of the sampling mechanism, and a detection beaker is provided inside the detection mechanism. The sampling mechanism comprises a first lifting bracket, a first lifting motor is fixedly installed on the top of the first lifting bracket, and an output end of the first lifting motor is fixedly connected to a first lifting threaded rod, wherein the outer side of the first lifting threaded rod is threadedly connected to a first lifting threaded sleeve, and a lifting limit block is fixedly installed on the outer side of the first lifting threaded sleeve. After liquid sampling, the solution can be heated and evaporated through the heating ring, and the steam is discharged through the through hole, thereby increasing the concentration of the solution and facilitating the detection of drug residues. The fan-shaped cutting knife and the cutting sleeve are rotated to facilitate the cutting of aquatic products.

Description

Technical Field

[0001] The present invention relates to the technical field of aquatic product drug detection, in particular to a drug residue detection device for aquatic product quality safety. Background Art

[0002] Announcement No. CN212206810U discloses a rapid detection device for drug residues in aquatic products. The device comprises a top cover, a motor, a stirring rod, a first stirring blade, a second stirring blade, a liquid outlet pipe, a filter screen, a first delivery pipe, a water pump, a second delivery pipe and a liquid outlet pipe. The top cover is opened to place the aquatic product into the stirring drum. The motor is started, and the rotation of the motor drives the stirring rod to rotate, thereby simultaneously driving the first stirring blade and the second stirring blade to rotate, thereby crushing the aquatic product and fully dissolving the residual drug therein into the solvent. The water pump is started, and the solution passes through the filter screen into the liquid outlet pipe, and then passes through the first delivery pipe and the second delivery pipe into the liquid storage tank. The device realizes sampling, stirring and extraction in one, reduces the operation steps and greatly speeds up the detection speed. However, the following problems still exist in the actual use of the patent:

[0003] Although the rapid drug residue detection device for aquatic products can realize sampling, stirring and extraction in one, it is not possible to perform sample sampling when detecting drugs in aquatic products. At the same time, drugs not only remain in aquatic products, but also remain in the solution of aquatic products. Only one form of detection is used, resulting in inaccurate test data, thereby affecting the accuracy of the test results.

[0004] Therefore, a drug residue detection device for aquatic product quality and safety is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a drug residue detection device for aquatic product quality and safety, so as to solve the problem proposed in the above background technology that samples cannot be taken when detecting drugs in aquatic products, and the drugs not only remain in the aquatic products, but also remain in the solutions of the aquatic products. Only one form of detection is used, resulting in inaccurate test data, thereby affecting the accuracy of the test results.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a drug residue detection device for aquatic product quality and safety, comprising a sampling mechanism and a pressing plate installed on the top of the sampling mechanism;

[0007] A detection mechanism is provided at the bottom of the sampling mechanism, and a detection beaker is provided inside the detection mechanism;

[0008] Also includes:

[0009] The sampling mechanism includes a first lifting bracket, a first lifting motor is fixedly installed on the top of the first lifting bracket, and an output end of the first lifting motor is fixedly connected to a first lifting threaded rod;

[0010] The outer side of the first lifting threaded rod is threadedly connected to the first lifting threaded sleeve, the outer side of the first lifting threaded sleeve is fixedly installed with a lifting limit block, and the outer side of the lifting limit block is fixedly installed with a mounting bracket;

[0011] The internal thread of the mounting bracket is connected to a mounting thread ring, a sampling tube is fixedly installed inside the mounting thread ring, and a plurality of through holes are opened in the sampling tube near the bottom of the mounting thread ring;

[0012] A heating ring is fixedly mounted on the outside of the sampling cylinder, a cutting sleeve is rotatably connected to the bottom of the sampling cylinder, a first rotating support is fixedly mounted around the bottom of the cutting sleeve, a fan-shaped cutting knife is rotatably connected to the outside of each first rotating support, a closed rotating rod is rotatably connected to the inside of the fan-shaped cutting knife, and a closed sliding sleeve is rotatably connected to the top of the closed rotating rod;

[0013] A closed sliding rod is fixedly installed inside the closed sliding sleeve, and the closed sliding rod is fixedly installed around the inside of the cutting sleeve. A closed spring is fixedly installed on the top of the closed sliding sleeve. The sampling barrel is slidably connected to the sampling sliding rod. The bottom outer side of the sampling sliding rod is rotatably connected to the sampling piston, and the sampling piston is in close contact with the inner wall of the sampling barrel.

[0014] A sampling rotating rod is fixedly installed on the bottom of the sampling sliding rod, a sampling spiral blade is fixedly installed on the outer side of the sampling rotating rod, a supporting plate is fixedly installed on the bottom of the sampling rotating rod, and limiting grooves are provided around the supporting plate. A first rotating bracket is symmetrically installed on one side of the bottom of the pressing plate, and a first rotating motor is fixedly installed on the outer side of the first rotating bracket on one side.

[0015] Preferably, the output end of the first rotating motor is fixedly connected to a first rotating worm, one side of the first rotating worm is meshedly connected to a first rotating worm wheel, the first rotating worm wheel is rotationally connected to the pressing plate, and the first rotating worm wheel is fixedly installed on the top of the sampling sliding rod.

[0016] Preferably, the mounting bracket is fixedly installed with a limiting ring near the bottom of the mounting threaded ring, and a second rotating support is fixedly installed around the inner side of the top of the limiting ring. The outer side of each second rotating support is rotatably connected to a limiting plate, and a limiting spring is fixedly installed on one side of the bottom of the limiting plate. The limiting spring is fixedly installed on the inner side of the limiting ring, and the limiting plate is fitly connected to the sampling tube.

[0017] Preferably, the detection mechanism includes a fixed chassis, which is fixedly installed on the bottom of the first lifting bracket, and a second lifting bracket is fixedly installed on the side of the fixed chassis away from the first lifting bracket, and a second lifting motor is fixedly installed on the top of the second lifting bracket, and the output end of the second lifting motor is fixedly connected to a second lifting threaded rod, the outer side of the second lifting threaded rod is threadedly connected to a second lifting threaded sleeve, and a clamping bracket is fixedly installed on the outer side of the second lifting threaded sleeve.

[0018] Preferably, one end of the clamping bracket is rotatably connected to a clamping knob, the end of the clamping knob is fixedly connected to a clamping bidirectional threaded rod, the outer side of the clamping bidirectional threaded rod is symmetrically threadedly connected to a clamping threaded sleeve, a clamping arm is fixedly installed on the outer side of the clamping threaded sleeve, a detection instrument is provided between the two clamping arms, a second rotating bracket is symmetrically installed on the top front side of the fixed chassis, a second rotating motor is fixedly installed on the outer side of the second rotating bracket on one side, and the output end of the second rotating motor is fixedly connected to a second rotating worm.

[0019] Preferably, one side of the second rotating worm is meshedly connected with a second rotating worm wheel, and a plurality of fixed sliding rods are fixedly installed around the inside of the second rotating worm wheel, and the outer side of each fixed sliding rod is slidably connected with a fixed sliding sleeve, and one side of the fixed sliding sleeve is fixedly installed with a fixed spring, and the top of the fixed sliding sleeve is fixedly installed with a fixed clamping block, and the top of the fixed clamping block is fixedly installed with an inclined plate, and the top of the inclined plate is fitly connected with an unlocking ring, and the detection beaker is arranged on the inner side of the fixed clamping block.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the drug residue detection device for aquatic product quality and safety can heat and evaporate the solution after liquid sampling through the heating ring, and the steam is discharged through the through hole, thereby increasing the concentration of the solution and facilitating the detection of drug residues. The fan-shaped cutting knife and the cutting sleeve are rotated to facilitate the cutting of aquatic products. The inclined plate is squeezed by the bottom of the detection beaker to drive the expansion of the fixed clamp block, thereby facilitating the installation of the detection beaker. When the detection beaker needs to be taken out, the fixed clamp block can be expanded by pressing the unlocking ring, thereby taking out the detection beaker. The specific contents are as follows:

[0021] 1. By setting up the sampling mechanism, not only can the first lifting motor drive the first lifting threaded rod to rotate, so that the first lifting threaded sleeve drives the lifting limit block and the mounting bracket to move up and down, the installation threaded ring and the sampling tube can be lifted and lowered, which is convenient for sampling of drug residue detection in aquatic products. By virtue of the threaded connection between the installation threaded ring and the mounting bracket, the sampling tube can be fixed, thereby improving the stability during sampling. After the liquid is sampled, the solution can be heated and evaporated by the heating ring, and the steam is discharged through the through hole, thereby increasing the concentration of the solution, which is convenient for the detection of drug residues. At the same time, the sampling sliding rod and the sampling piston are driven to move up and down by the pressing plate, and the detection liquid can be extracted by the sampling piston. When it is necessary to detect the fixed aquatic product, the limiting grooves around the support plate are slidably connected with the closed rotating rod. Under the action of the first rotating support, the fan-shaped cutting knife can be rotated, and the first The rotating motor drives the first rotating worm to rotate, and the first rotating worm is connected with the first rotating worm gear by the meshing connection between the first rotating worm and the first rotating worm gear, so that the first rotating worm gear drives the sampling sliding rod, the sampling rotating rod and the supporting disk to rotate, thereby driving the closed rotating rod, the fan-shaped cutting knife and the cutting sleeve to rotate, so as to facilitate the cutting of the aquatic product. At the same time, by adjusting the height of the support disk, the angle of the fan-shaped cutting knife can be adjusted to facilitate the cutting of the aquatic product. The sampling rotating rod drives the sampling spiral blade to rotate, so as to sample the crushed aquatic product, and at the same time moves the sampling rotating rod and the sampling spiral blade upward. When the support disk is separated from the closed rotating rod, the fan-shaped cutting knife is closed under the action of the closing spring, and the bottom of the cutting sleeve can be closed, so as to facilitate the evaporation of the solution and the clamping of the aquatic product raw material. The sampling barrel can be limited by the second rotating support, the limiting plate and the limiting spring inside the limiting ring, so as to facilitate the installation and disassembly of the sampling barrel.

[0022] 2. By setting up the detection mechanism, not only can the second lifting motor be used to drive the second lifting threaded rod to rotate, so that the second lifting threaded sleeve drives the clamping bracket to move up and down, the height of the detection instrument can be adjusted, which is convenient for the detection of drug residues in aquatic products, but by rotating the clamping knob to drive the clamping bidirectional threaded rod to rotate, the two clamping threaded sleeves drive the clamping arms to move relative to each other, thereby achieving the clamping and fixing of the detection instrument, facilitating the installation and disassembly of the detection instrument, and being able to replace different detection instruments according to the needs of the detection, thereby improving the accuracy of the detection data. The detection instrument is an existing technology, and gas chromatograph, high performance liquid chromatograph, electrochemical biosensor and other related instruments can be used for drug residue detection. The second rotating worm is driven to rotate by the second rotating motor, and the meshing connection between the second rotating worm and the second rotating worm wheel is utilized to realize the switching of the second rotating worm wheel and the detection beaker, thereby realizing uninterrupted sampling and detection. The fixed sliding rod and the fixed sliding sleeve inside the second rotating worm wheel are slidably connected, and under the elastic force of the fixed spring, the fixed clamp block is fixed to the detection beaker, which is convenient for sampling and detection of drugs. At the same time, the inclined plate is squeezed by the bottom of the detection beaker to drive the expansion of the fixed clamp block, which is convenient for the installation of the detection beaker. When the detection beaker needs to be taken out, the fixed clamp block can be expanded by pressing the unlocking ring, thereby taking out the detection beaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the three-dimensional cross-section of the first lifting bracket in the present invention;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the sampling tube cross section in the present invention;

[0026] Figure 4 Schematic diagram of the three-dimensional structure of the cutting sleeve cross section in the present invention;

[0027] Figure 5 Schematic diagram of the three-dimensional structure of the sampling sliding rod in the present invention;

[0028] Figure 6 Schematic diagram of the three-dimensional structure of the pressing plate in the present invention;

[0029] Figure 7 Schematic diagram of the three-dimensional structure of the cross section of the limiting ring in the present invention;

[0030] Figure 8 Schematic diagram of the three-dimensional cross-section of the second lifting bracket in the present invention;

[0031] Figure 9 Schematic diagram of the three-dimensional cross-section of the clamping bracket in the present invention;

[0032] Figure 10 Schematic diagram of the three-dimensional structure of the second rotating worm gear in the present invention;

[0033] Figure 11 It is a schematic diagram of the three-dimensional structure of the fixed clamp block and the inclined plate in the present invention.

[0034] In the figure: 1. sampling mechanism; 101. first lifting bracket; 102. first lifting motor; 103. first lifting threaded rod; 104. first lifting threaded sleeve; 105. lifting limit block; 106. mounting bracket; 107. mounting threaded ring; 108. sampling tube; 109. through hole; 110. heating ring; 111. cutting sleeve; 112. first rotating support; 113. fan-shaped cutting knife; 114. closed rotating rod; 115. closed sliding sleeve; 116. closed sliding rod; 117. closed spring; 118. sampling sliding rod; 119. sampling piston; 120. sampling rotating rod; 121. sampling spiral blade; 122. supporting plate; 123. limiting groove; 124. pressing plate; 125. first rotating bracket; 126. first rotating motor; 127. first rotating worm; 128. First rotating worm gear; 129. Limiting ring; 130. Second rotating support; 131. Limiting plate; 132. Limiting spring; 2. Detection mechanism; 201. Fixed chassis; 202. Second lifting bracket; 203. Second lifting motor; 204. Second lifting threaded rod; 205. Second lifting threaded sleeve; 206. Clamping bracket; 207. Clamping knob; 208. Clamping bidirectional threaded rod; 209. Clamping threaded sleeve; 210. Clamping arm; 211. Detection instrument; 212. Second rotating bracket; 213. Second rotating motor; 214. Second rotating worm; 215. Second rotating worm gear; 216. Fixed sliding rod; 217. Fixed sliding sleeve; 218. Fixed spring; 219. Fixed clamping block; 220. Tilt plate; 221. Unlocking ring; 222. Detection beaker. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 3The present invention provides a technical solution: a drug residue detection device for aquatic product quality and safety, comprising a sampling mechanism 1, and a pressing plate 124 installed on the top of the sampling mechanism 1, a detection mechanism 2 is provided at the bottom of the sampling mechanism 1, and a detection beaker 222 is provided inside the detection mechanism 2, the sampling mechanism 1 comprises a first lifting bracket 101, a first lifting motor 102 is fixedly installed on the top of the first lifting bracket 101, an output end of the first lifting motor 102 is fixedly connected to a first lifting threaded rod 103, wherein the outer side of the first lifting threaded rod 103 is threadedly connected to a first lifting threaded sleeve 104, and a lifting limit block 105 is fixedly installed on the outer side of the first lifting threaded sleeve 104 , a mounting bracket 106 is fixedly installed on the outer side of the lifting limit block 105, wherein the internal thread of the mounting bracket 106 is connected with a mounting thread ring 107, and a sampling tube 108 is fixedly installed on the inside of the mounting thread ring 107. The first lifting motor 102 drives the first lifting thread rod 103 to rotate, so that the first lifting thread sleeve 104 drives the lifting limit block 105 and the mounting bracket 106 to move up and down, which can realize the lifting and moving of the mounting thread ring 107 and the sampling tube 108, and facilitate the sampling of drug residue detection in aquatic products. Through the characteristics of the threaded connection between the mounting thread ring 107 and the mounting bracket 106, the sampling tube 108 can be fixed, thereby improving the stability during sampling.

[0037] See also Figure 3-Figure 5The sampling cylinder 108 is provided with a plurality of through holes 109 near the bottom of the mounting threaded ring 107. A heating ring 110 is fixedly mounted on the outside of the sampling cylinder 108. The bottom of the sampling cylinder 108 is rotatably connected to a cutting sleeve 111. The bottom of the cutting sleeve 111 is fixedly mounted with a first rotating support 112. The outer side of each first rotating support 112 is rotatably connected to a fan-shaped cutting knife 113. The inner side of the fan-shaped cutting knife 113 is rotatably connected to a closed rotating rod 114. The top of the closed rotating rod 114 is A closed sliding sleeve 115 is rotatably connected, a closed sliding rod 116 is fixedly installed inside the closed sliding sleeve 115, and the closed sliding rod 116 is fixedly installed around the inside of the cutting sleeve 111. A closed spring 117 is fixedly installed on the top of the closed sliding sleeve 115. The interior of the sampling cylinder 108 is slidably connected to the sampling sliding rod 118. After the liquid is sampled, the solution is heated and evaporated through the heating ring 110, and the steam is discharged through the through hole 109, thereby increasing the concentration of the solution. When the liquid is tested, the sampling slide rod 118 and the sampling piston 119 are driven to move up and down by the pressing plate 124. The testing liquid can be extracted by the sampling piston 119. When the fixed aquatic product needs to be tested, the limiting grooves 123 around the support plate 122 are slidably connected with the closed rotating rod 114. Under the action of the first rotating support 112, the rotation of the fan-shaped cutting knife 113 can be realized. At the same time, the first rotating motor 126 is started to drive the first rotating worm 127 to rotate. By utilizing the meshing connection between the first rotating worm 127 and the first rotating worm gear 128, the first rotating worm gear 128 drives the sampling sliding rod 118, the sampling rotating rod 120 and the support plate 122 to rotate, thereby driving the closed rotating rod 114, the fan-shaped cutting knife 113 and the cutting sleeve 111 to rotate, which is convenient for cutting the aquatic product. At the same time, by adjusting the height of the support plate 122, the angle of the fan-shaped cutting knife 113 can be adjusted, which is convenient for cutting the aquatic product.

[0038] See also Figure 5-Figure 7The bottom outer side of the sampling sliding rod 118 is rotatably connected to the sampling piston 119, and the sampling piston 119 is in close contact with the inner wall of the sampling cylinder 108. The bottom of the sampling sliding rod 118 is fixedly installed with a sampling rotating rod 120, and the outer side of the sampling rotating rod 120 is fixedly installed with a sampling spiral blade 121. The bottom of the sampling rotating rod 120 is fixedly installed with a support plate 122, and the support plate 122 is provided with a limiting groove 123 around it. The bottom side of the pressing plate 124 is symmetrically installed with a first rotating bracket 125 A first rotating motor 126 is fixedly installed on the outer side of the first rotating bracket 125 on one side, and a first rotating worm 127 is fixedly connected to the output end of the first rotating motor 126. A first rotating worm gear 128 is meshedly connected to one side of the first rotating worm gear 127. The first rotating worm gear 128 is rotatably connected to the pressing plate 124. The first rotating worm gear 128 is fixedly installed on the top of the sampling sliding rod 118. A limiting ring 129 is fixedly installed on the bottom of the mounting bracket 106 near the mounting threaded ring 107. The second rotating support 130 is fixedly installed around the inner side of the top of the ring 129. The outer side of each second rotating support 130 is rotatably connected to the limit plate 131. The bottom side of the limit plate 131 is fixedly installed with a limit spring 132. The limit spring 132 is fixedly installed on the inner side of the limit ring 129. The limit plate 131 is closely connected to the sampling tube 108. The sampling spiral leaf 121 is driven to rotate by the sampling rotating rod 120, so that the crushed aquatic products can be sampled. At the same time, the sampling rotating rod 120 moves upward to The movable rod 120 and the sampling spiral blade 121, when the support plate 122 is separated from the closed rotating rod 114, the fan-shaped cutting knife 113 is closed under the action of the closing spring 117, and the bottom of the cutting sleeve 111 can be closed, which is convenient for evaporation of the solution and clamping of the aquatic product raw materials. The second rotating support 130, the limiting plate 131 and the limiting spring 132 inside the limiting ring 129 can realize the limitation of the sampling tube 108, which is convenient for the installation and disassembly of the sampling tube 108.

[0039] See also Figure 8-Figure 9The detection mechanism 2 includes a fixed chassis 201, which is fixedly installed on the bottom of the first lifting bracket 101, and a second lifting bracket 202 is fixedly installed on the side of the fixed chassis 201 away from the first lifting bracket 101. A second lifting motor 203 is fixedly installed on the top of the second lifting bracket 202, and the output end of the second lifting motor 203 is fixedly connected to a second lifting threaded rod 204, and the outer side of the second lifting threaded rod 204 is threadedly connected to a second lifting threaded sleeve 205, and a clamping bracket 206 is fixedly installed on the outer side of the second lifting threaded sleeve 205. One end of the clamping bracket 206 is rotatably connected to a clamping knob 207, and the end of the clamping knob 207 is fixedly connected to a clamping bidirectional threaded rod 208, and the outer side of the clamping bidirectional threaded rod 208 is symmetrically threadedly connected to a clamping threaded sleeve 209, and a clamping arm 210 is fixedly installed on the outer side of the clamping threaded sleeve 209. 10 is provided with a detection instrument 211, and a second rotating bracket 212 is symmetrically installed on the top front of the fixed chassis 201. The second lifting motor 203 drives the second lifting threaded rod 204 to rotate, so that the second lifting threaded sleeve 205 drives the clamping bracket 206 to move up and down, and can adjust the height of the detection instrument 211, which is convenient for the detection of drug residues in aquatic products. By rotating the clamping knob 207, the clamping two-way threaded rod 208 is driven to rotate, and the two clamping threaded sleeves 209 drive the clamping arms 210 to move relative to each other, thereby realizing the clamping and fixation of the detection instrument 211, facilitating the installation and disassembly of the detection instrument 211, and can replace different detection instruments 211 according to the needs of the detection, thereby improving the accuracy of the detection data. The detection instrument 211 is an existing technology, and gas chromatograph, high performance liquid chromatograph, electrochemical biosensor and other related instruments can be used to detect drug residues.

[0040] See also Figure 10-11, a second rotating motor 213 is fixedly installed on the outer side of the second rotating bracket 212 on one side, and a second rotating worm 214 is fixedly connected to the output end of the second rotating motor 213, and a second rotating worm 214 is meshedly connected to one side of the second rotating worm 214. A plurality of fixed sliding rods 216 are fixedly installed on the inner four sides of the second rotating worm gear 215, and a fixed sliding sleeve 217 is slidably connected to the outer side of each fixed sliding rod 216. A fixed spring 218 is fixedly installed on one side of the fixed sliding sleeve 217, and a fixed clamping block 219 is fixedly installed on the top of the fixed clamping block 219. An inclined plate 220 is fixedly installed on the top of the inclined plate 220, and an unlocking ring 221 is fitly connected to the top of the inclined plate 220. The detection beaker 222 is arranged on the inner side of the fixed clamping block 219, and the second rotating motor 213 drives the second rotating The worm 214 rotates, and the meshing connection between the second rotating worm 214 and the second rotating worm gear 215 is utilized to realize the switching of the second rotating worm gear 215 and the detection beaker 222, thereby realizing uninterrupted sampling and detection. The fixed sliding rod 216 inside the second rotating worm gear 215 is slidably connected to the fixed sliding sleeve 217, and under the elastic force of the fixed spring 218, the fixed clamping block 219 is fixed to the detection beaker 222, which is convenient for drug sampling and detection. At the same time, by squeezing the inclined plate 220 at the bottom of the detection beaker 222, the fixed clamping block 219 can be driven to expand, which is convenient for the installation of the detection beaker 222. When the detection beaker 222 needs to be taken out, the fixed clamping block 219 can be expanded by pressing the unlocking ring 221, thereby taking out the detection beaker 222.

[0041] Working principle: Before using this drug residue detection equipment for aquatic product quality and safety, it is necessary to first check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 11 As shown, first, the first lifting motor 102 is used to drive the first lifting threaded rod 103 to rotate, so that the first lifting threaded sleeve 104 drives the lifting limit block 105 and the mounting bracket 106 to move up and down, which can realize the lifting and moving of the mounting threaded ring 107 and the sampling tube 108, which is convenient for sampling of drug residue detection in aquatic products. Through the characteristics of the threaded connection between the mounting threaded ring 107 and the mounting bracket 106, the sampling tube 108 can be fixed to improve the stability during sampling. After liquid sampling, the solution can be heated and evaporated through the heating ring 110, and the steam is discharged through the through hole 109, thereby increasing the concentration of the solution, which is convenient for the detection of drug residues. At the same time, the sampling sliding rod 118 and the sampling piston 119 are driven to move up and down by the pressing plate 124, and the detection liquid can be extracted through the sampling piston 119.

[0042] Secondly, when it is necessary to inspect the fixed aquatic products, the limiting grooves 123 around the support plate 122 are slidably connected with the closed rotating rod 114, so that the sector-shaped cutting knife 113 can be rotated under the action of the first rotating support 112, and the first rotating motor 126 is started to drive the first rotating worm 127 to rotate. By utilizing the meshing connection between the first rotating worm 127 and the first rotating worm gear 128, the first rotating worm gear 128 drives the sampling sliding rod 118, the sampling rotating rod 120 and the support plate 122 to rotate, thereby driving the closed rotating rod 114, the sector-shaped cutting knife 113 and the cutting sleeve 111 to rotate, so as to facilitate the cutting of the aquatic products. At the same time, by adjusting the height of the support plate 122, the The angle of the fan-shaped cutting knife 113 can be adjusted to facilitate the cutting of aquatic products. The sampling spiral blade 121 is driven to rotate by the sampling rotating rod 120 to sample the crushed aquatic products. At the same time, the sampling rotating rod 120 and the sampling spiral blade 121 are moved upward. When the supporting plate 122 is separated from the closing rotating rod 114, the fan-shaped cutting knife 113 is closed under the action of the closing spring 117, and the bottom of the cutting sleeve 111 can be closed, which is convenient for evaporation of the solution and clamping of the aquatic product raw materials. The second rotating support 130, the limiting plate 131 and the limiting spring 132 inside the limiting ring 129 can realize the limitation of the sampling barrel 108, which is convenient for installation and disassembly of the sampling barrel 108.

[0043] Finally, the second lifting motor 203 is used to drive the second lifting threaded rod 204 to rotate, so that the second lifting threaded sleeve 205 drives the clamping bracket 206 to move up and down, which can adjust the height of the detection instrument 211, which is convenient for the detection of drug residues in aquatic products. By rotating the clamping knob 207, the clamping two-way threaded rod 208 is driven to rotate, so that the two clamping threaded sleeves 209 drive the clamping arms 210 to move relative to each other, thereby achieving the clamping and fixation of the detection instrument 211, which is convenient for the installation and disassembly of the detection instrument 211. Different detection instruments 211 can be replaced according to the needs of the detection, thereby improving the accuracy of the detection data. The detection instrument 211 is an existing technology, and gas chromatographs, high performance liquid chromatographs, electrochemical biosensors and other related instruments can be used to detect drug residues. The second rotating motor 213 drives the second rotating The movable worm 214 rotates, and the meshing connection between the second rotating worm 214 and the second rotating worm gear 215 is utilized to realize the switching of the second rotating worm gear 215 and the detection beaker 222, thereby realizing uninterrupted sampling and detection. The fixed sliding rod 216 inside the second rotating worm gear 215 is slidably connected with the fixed sliding sleeve 217, and under the elastic force of the fixed spring 218, the fixed clamping block 219 is fixed to the detection beaker 222, which is convenient for drug sampling and detection. At the same time, by squeezing the inclined plate 220 at the bottom of the detection beaker 222, the fixed clamping block 219 can be driven to expand, which is convenient for the installation of the detection beaker 222. When the detection beaker 222 needs to be taken out, the fixed clamping block 219 can be expanded by pressing the unlocking ring 221, thereby taking out the detection beaker 222.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 drug residue detection device for aquatic product quality safety, comprising a sampling mechanism (1) and a pressing plate (124) mounted on the top of the sampling mechanism (1); A detection mechanism (2) is provided at the bottom of the sampling mechanism (1), and a detection beaker (222) is provided inside the detection mechanism (2); It is characterized by: Also includes: The sampling mechanism (1) comprises a first lifting bracket (101), a first lifting motor (102) is fixedly mounted on the top of the first lifting bracket (101), and a first lifting threaded rod (103) is fixedly connected to the output end of the first lifting motor (102); The outer side of the first lifting threaded rod (103) is threadedly connected to the first lifting threaded sleeve (104), the outer side of the first lifting threaded sleeve (104) is fixedly mounted with a lifting limit block (105), and the outer side of the lifting limit block (105) is fixedly mounted with a mounting bracket (106); The mounting bracket (106) is internally threadedly connected to a mounting threaded ring (107), a sampling tube (108) is fixedly mounted inside the mounting threaded ring (107), and a plurality of through holes (109) are formed in the sampling tube (108) near the bottom of the mounting threaded ring (107); A heating ring (110) is fixedly mounted on the outer side of the sampling cylinder (108), a cutting sleeve (111) is rotatably connected to the bottom of the sampling cylinder (108), a first rotating support (112) is fixedly mounted around the bottom of the cutting sleeve (111), a fan-shaped cutting knife (113) is rotatably connected to the outer side of each first rotating support (112), a closed rotating rod (114) is rotatably connected to the inner side of the fan-shaped cutting knife (113), and a closed sliding sleeve (115) is rotatably connected to the top of the closed rotating rod (114); A closed sliding rod (116) is fixedly installed inside the closed sliding sleeve (115), and the closed sliding rod (116) is fixedly installed around the inside of the cutting sleeve (111). A closed spring (117) is fixedly installed on the top of the closed sliding sleeve (115). The inside of the sampling cylinder (108) is slidably connected to the sampling sliding rod (118), and the bottom outer side of the sampling sliding rod (118) is rotatably connected to the sampling piston (119), and the sampling piston (119) is in close contact with the inner wall of the sampling cylinder (108); A sampling rotating rod (120) is fixedly mounted on the bottom of the sampling sliding rod (118), a sampling spiral blade (121) is fixedly mounted on the outer side of the sampling rotating rod (120), a supporting plate (122) is fixedly mounted on the bottom of the sampling rotating rod (120), and limiting grooves (123) are provided around the supporting plate (122), a first rotating bracket (125) is symmetrically mounted on one side of the bottom of the pressing plate (124), and a first rotating motor (126) is fixedly mounted on the outer side of the first rotating bracket (125) on one side.

2. The drug residue detection device for aquatic product quality and safety according to claim 1, characterized in that: The output end of the first rotating motor (126) is fixedly connected to a first rotating worm (127), one side of the first rotating worm (127) is meshedly connected to a first rotating worm wheel (128), the first rotating worm wheel (128) is rotationally connected to the pressing plate (124), and the first rotating worm wheel (128) is fixedly installed on the top of the sampling sliding rod (118).

3. The drug residue detection device for aquatic product quality and safety according to claim 1, characterized in that: The mounting bracket (106) is fixedly mounted with a limiting ring (129) near the bottom of the mounting threaded ring (107), and second rotating supports (130) are fixedly mounted around the inner side of the top of the limiting ring (129), and the outer side of each second rotating support (130) is rotatably connected to a limiting plate (131), and a limiting spring (132) is fixedly mounted on one side of the bottom of the limiting plate (131), and the limiting spring (132) is fixedly mounted on the inner side of the limiting ring (129), and the limiting plate (131) is fitted and connected to the sampling tube (108).

4. The drug residue detection device for aquatic product quality and safety according to claim 1, characterized in that: The detection mechanism (2) comprises a fixed chassis (201), wherein the fixed chassis (201) is fixedly mounted on the bottom of a first lifting bracket (101), a second lifting bracket (202) is fixedly mounted on a side of the fixed chassis (201) away from the first lifting bracket (101), a second lifting motor (203) is fixedly mounted on the top of the second lifting bracket (202), an output end of the second lifting motor (203) is fixedly connected to a second lifting threaded rod (204), an outer side of the second lifting threaded rod (204) is threadedly connected to a second lifting threaded sleeve (205), and a clamping bracket (206) is fixedly mounted on the outer side of the second lifting threaded sleeve (205).

5. The drug residue detection device for aquatic product quality and safety according to claim 4, characterized in that: One end of the clamping bracket (206) is rotatably connected to a clamping knob (207), an end of the clamping knob (207) is fixedly connected to a clamping bidirectional threaded rod (208), an outer side of the clamping bidirectional threaded rod (208) is symmetrically threadedly connected to a clamping threaded sleeve (209), a clamping arm (210) is fixedly installed on the outer side of the clamping threaded sleeve (209), a detection instrument (211) is provided between the two clamping arms (210), a second rotating bracket (212) is symmetrically installed on the top front of the fixed chassis (201), a second rotating motor (213) is fixedly installed on the outer side of the second rotating bracket (212) on one side, and an output end of the second rotating motor (213) is fixedly connected to a second rotating worm (214).

6. The drug residue detection device for aquatic product quality and safety according to claim 5, characterized in that: One side of the second rotating worm (214) is meshedly connected with a second rotating worm wheel (215), and a plurality of fixed sliding rods (216) are fixedly installed around the inside of the second rotating worm wheel (215), and the outer side of each fixed sliding rod (216) is slidably connected with a fixed sliding sleeve (217), and one side of the fixed sliding sleeve (217) is fixedly installed with a fixed spring (218), and the top of the fixed sliding sleeve (217) is fixedly installed with a fixed clamping block (219), and the top of the fixed clamping block (219) is fixedly installed with an inclined plate (220), and the top of the inclined plate (220) is fitted with an unlocking ring (221), and the detection beaker (222) is arranged on the inner side of the fixed clamping block (219).

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