Pesticide residue separation device in Chinese herbal medicine effective component extraction process

Abstract

The invention discloses a pesticide residue separation device in a Chinese herbal medicine effective component extraction process, and belongs to the technical field of pesticide residue separation, the pesticide residue separation device comprises a separation box, a vibration frame is arranged in the separation box, a vibration motor is arranged at the top of the vibration frame, and an adjusting mechanism is arranged at the bottom of the vibration frame; the sampling mechanism comprises a sampling box, a piston plate, a driving mechanism and an intermittent triggering mechanism, a piston is slidably connected in the sampling box, and the driving mechanism is used for driving the piston plate to reciprocate up and down; and the detector is used for detecting the content of pesticide residues. Chinese herbal medicines are heated, vibrated and soaked through the separation box, the vibration frame and the heating pipe, efficient removal of pesticide residues is achieved, loss of effective components of the Chinese herbal medicines is avoided by controlling the heating temperature, intermittent sampling of soaking water can be achieved through the sampling mechanism and the detector, and the sampling efficiency is improved. Therefore, pesticide residues can be thoroughly removed.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide residue separation, and in particular to a pesticide residue separation device in the process of extracting effective components of Chinese herbal medicines. Background Art

[0002] As a source of natural medicine, Chinese herbal medicine is widely recognized and used worldwide. In recent years, the demand for natural medicines has been increasing in countries around the world, especially for green medicines. Chinese herbal medicine is a treasure of our Chinese nation with a long history of thousands of years. my country has abundant natural medicinal resources, which provide abundant raw materials for the production of Chinese medicine. However, the quality and safety problems in the production of Chinese medicine have restricted the development of Chinese medicine. Pesticide residue is a prominent problem in the quality and safety of Chinese medicine. According to customs statistics in recent years, exported Chinese herbal medicines are frequently detained and returned due to excessive harmful residues, which has become an obstacle to the export and development of Chinese medicine in my country. Pesticide residue refers to the phenomenon that a part of pesticides remain directly or indirectly in grains, vegetables, fruits, Chinese herbal medicines, livestock products, aquatic products, soil and water bodies after the application of pesticides during plant growth and agricultural production. my country has stipulated the types of low-level pesticides that can be used and the types of highly toxic and high-residue pesticides that are prohibited from use in the production of Chinese herbal medicines. However, because herbal medicine growers cannot understand the mechanism of action of pesticides on herbal medicine plant populations and their impact on the ecological environment based on the physicochemical properties of pesticides themselves, they use some highly toxic and high-residue pesticides to control herbal medicine pests and diseases, which results in some highly toxic and high-residue pesticides remaining in herbal medicines. These residual pesticide components enter herbal medicines and pose a potential threat to human health. Therefore, in the process of extracting the effective ingredients of herbal medicines, how to efficiently remove these pesticide residues is an important link in improving the safety of herbal medicines.

[0003] Existing methods for separating pesticide residues often have problems such as low efficiency, high cost, and complex operation; therefore, we propose a pesticide residue separation device during the extraction of effective ingredients from Chinese herbal medicines to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to provide a device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicines, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicines, comprising:

[0007] A separation box, wherein a vibration frame is arranged inside the separation box, a vibration motor is arranged on the top of the vibration frame, and an adjustment mechanism is arranged on the bottom of the vibration frame;

[0008] The sampling mechanism comprises a sampling box, a piston plate, a driving mechanism and an intermittent triggering mechanism. The piston is slidably connected in the sampling box, and the driving mechanism is used to drive the piston plate to move up and down reciprocatingly. The intermittent triggering mechanism is used to control the intermittent start of the driving mechanism;

[0009] The detector is used to detect the content of pesticide residues, and the detector adopts a high performance liquid chromatograph.

[0010] Preferably, the adjustment mechanism comprises a support frame, a fixed frame, an adjustment plate, two support columns and two electric push rods, the two electric push rods are fixedly connected to the inside of the separation box, the inner walls on both sides of the support frame are fixedly connected with ear plates, and the output ends of the electric push rods are fixedly connected to the tops of the corresponding ear plates, and the pressure sensors and guide columns are fixedly connected to both sides of the top of the support frame;

[0011] The two support columns are slidably connected to the top of the support frame, the bottom of the support column is fixedly connected with a flat plate, the flat plate movably abuts against the top of the pressure sensor, and the flat plate is slidably sleeved on the outer side of the corresponding guide column, and the top of the support column is fixedly connected with a square plate;

[0012] The two adjustment plates are respectively fixedly connected to the two sides of the bottom of the vibration frame, and the two adjustment plates are respectively slidably connected in the corresponding fixed frames, and transverse springs are fixedly connected on both sides of the adjustment plates, and the other end of the transverse spring is fixedly connected to the side wall of the corresponding fixed frame, and a square frame is fixedly connected to the bottom of the fixed frame, and the two square plates are respectively slidably connected in the corresponding square frames, and a supporting spring is fixedly connected to the top of the square plate, and the top of the supporting spring is fixedly connected to the bottom of the corresponding fixed frame.

[0013] Preferably, a plurality of mounting seats are fixedly mounted on the inner wall of the separation box, a plurality of temperature sensors are fixedly connected to the mounting seats, and heating pipes are fixedly connected to the inner walls on both sides of the separation box, and a drain valve is connected to the bottom of the separation box;

[0014] A frame is fixedly mounted on the top of the vibration frame, the vibration motor is fixedly mounted on the top of the frame, and a plurality of through holes are opened on the outer side of the vibration frame.

[0015] Preferably, it also includes a stirring mechanism, which includes a mounting frame, a stirring motor and a stirring blade, the mounting frame is fixedly connected to the bottom of the separation box, and the stirring motor is fixedly installed in the mounting frame, and the stirring blade is arranged in the separation box, and the output shaft of the stirring motor extends to the interior of the separation box and is fixedly connected to the stirring blade.

[0016] Preferably, the driving mechanism comprises a stepper motor, two connecting plates, two driving plates and four fixed plates, the stepper motor and the four fixed plates are all fixedly connected to the top of the sampling box, and a rotating shaft is rotatably connected in the fixed plate, one end of one of the rotating shafts is fixedly connected to the output shaft of the stepper motor, the two rotating shafts located on the rear side are both fixedly connected to sprockets, the same chain is installed on the two sprockets for transmission, the ends of the two rotating shafts located on the same side close to each other are both fixedly connected to rotating arms, the other ends of the two rotating arms located on the same side are fixedly connected to the same connecting shaft, and the two driving plates are rotatably sleeved on the outer sides of the corresponding connecting shafts respectively;

[0017] The two connecting plates are respectively fixedly connected to the two sides of the top of the piston plate, and a plurality of guide rods are fixedly connected to the top of one side of the connecting plate. The driving plate is slidably sleeved on the outer side of the corresponding guide rod, and the two connecting plates are respectively slidably connected to the two sides of the top of the sampling box.

[0018] Preferably, the intermittent trigger mechanism comprises a controller, a fixing frame, a U-shaped frame and a driving motor, and the controller, the fixing frame, the U-shaped frame and the driving motor are all fixedly mounted on the top of the sampling box;

[0019] A horizontal axis is rotatably installed inside the U-shaped frame, a worm wheel and a turntable are fixedly installed on the outside of the horizontal axis, a plurality of arc-shaped protrusions are integrally formed on the outside of the turntable, and the spacing between two adjacent arc-shaped protrusions increases in the counterclockwise direction, a cylinder is fixedly connected to both the front and rear sides of the turntable, and a worm is fixedly connected to the output shaft of the drive motor, and the worm is meshed with the worm wheel;

[0020] A first button, a second button, two first springs and two second springs are fixedly installed inside the fixing frame, the other ends of the two first springs are fixedly connected to the same first pressing plate, a trapezoidal protrusion is integrally formed on one side of the first pressing plate, the trapezoidal protrusion is adapted to the arc-shaped protrusion, the first pressing plate is adapted to the first button, and a plurality of cross bars are fixedly connected to the other side of the first pressing plate, the cross bars are slidably connected in the fixing frame, and the other ends of the two second springs are fixedly connected to the same second pressing plate, the second pressing plate is adapted to the second button, and two round rods are slidably connected in the second pressing plate, and one end of the round rod is fixedly connected in the fixing frame;

[0021] The front and rear sides of the fixing frame are both rotatably connected with L-shaped rotating rods, one end of the two L-shaped rotating rods is movably abutted against the front and rear sides of the rotating disk, and the other end of the L-shaped rotating rod is hinged with a linkage rod, and the two linkage rods are rotatably connected to the front and rear sides of the second pressing plate;

[0022] The first button, the second button, the vibration motor and the stepper motor are all electrically connected to the controller. When the first button is pressed, the controller controls the stepper motor to start, and when the second button is pressed, the controller controls the vibration motor to stop running.

[0023] The front and rear sides of the fixing frame are both fixedly connected with stoppers, and the stoppers are movably abutted against one side of the L-shaped rotating rod.

[0024] Preferably, through holes are provided on both top and bottom sides of the sampling box, and one-way valves are arranged in the through holes. The two through holes on the left side are respectively connected to a liquid inlet pipe and a cleaning pipe, and the two through holes on the right side are connected to the same three-way pipe, the right end of the three-way pipe is connected to the inlet of the detector, and the outlet of the detector is connected to the outlet pipe.

[0025] The beneficial effects of the present invention are:

[0026] 1. In the present invention, the pesticide residue separation device in the process of extracting effective ingredients from Chinese herbal medicines is described. By placing Chinese herbal medicines in a vibration frame and adding clean water into the separation box, the clean water completely immerses the Chinese herbal medicines. Water molecules penetrate into the surface and interior of the herbal medicines and interact with the pesticide molecules in the herbal medicines. Some water-soluble pesticide molecules gradually dissolve into the water, while some pesticide molecules that are not easily soluble in water fall off the surface of the herbal medicines as they are flushed with water, thereby achieving the effect of removing pesticide residues. The vibration motor is started to drive the vibration frame to vibrate, so that the Chinese herbal medicines inside it are fully in contact with water, thereby improving the soaking effect. The electric push rod is started to drive the support frame to move upward, thereby driving the vibration frame to move up and down, so as to adjust the soaking depth as needed.

[0027] 2. In the present invention, the pesticide residue separation device in the process of extracting effective components of Chinese herbal medicines heats the water in the separation box by starting the heating tube. The heating can increase the movement speed of the pesticide molecules, making it easier to separate from the food surface. At the same time, the high temperature may also change the chemical structure of the pesticide, thereby reducing its toxicity. In agricultural production, many pesticides are physically attached to the surface of agricultural products rather than chemically combined. Therefore, by heating, these pesticide molecules can be effectively made to fall off from the surface of food or decompose into simpler, low-toxic or non-toxic substances. During the heating process, some pesticide components that were originally insoluble in water may become easy to dissolve and then be taken away by water. The temperature of the water in the separation box is monitored by a temperature sensor, so as to maintain the temperature of the water in the separation box at 70-80°C, thereby avoiding boiling and causing the loss of effective ingredients in the herbs. At the same time, the stirring motor can be started to drive the stirring blade to rotate, thereby stirring the water. The movement of the water can be accelerated during the stirring process, so that the water can be heated more evenly and the water can have better contact and flushing with the Chinese medicine to improve the removal effect of pesticide residues. Temperature sensors at different positions can be used to monitor the temperature at multiple points. When the temperature difference at different positions exceeds the set range, the stirring motor is controlled to rotate faster, thereby improving the stirring effect of the water and ensuring uniform heating.

[0028] 3. In the present invention, the pesticide residue separation device in the process of extracting effective ingredients from Chinese herbal medicines drives the worm to rotate by starting the driving motor. The worm drives the horizontal axis and the turntable to rotate slowly clockwise by meshing with the worm wheel. The turntable pushes the first pressing plate to move rightward and presses the first button through the contact between the arc-shaped protrusion and the trapezoidal protrusion. The first button controls the operation of the stepping motor through the controller, thereby driving the rotating shaft to rotate one circle and then stop. During the rotation of the rotating shaft, the rotating arm, the connecting shaft and the sprocket drive the remaining four rotating shafts to rotate synchronously, and drive the two connecting shafts to perform circular motion. The connecting shaft drives the rotating shaft to rotate synchronously through the rotating arm, the connecting shaft and the sprocket. The cooperation with the driving plate and the guide rod drives the connecting plate to move upward and then downward, and the connecting plate drives the piston plate to move synchronously. The piston plate divides the sampling box into an upper cavity and a lower cavity, and adds clean water to the upper cavity in advance, and connects one end of the flushing pipe with the water supply pipe of the clean water. When the piston plate moves upward, the soaking water in the separation box enters the lower cavity through the liquid inlet pipe, and at the same time, the clean water in the upper cavity is introduced into the detector through the three-way pipe to clean the detector to avoid interference with subsequent detection. When the piston plate moves downward, the clean water enters the upper cavity through the flushing pipe to achieve replenishment. To avoid the next cleaning, the soaking water in the lower cavity enters the detector. In the high performance liquid chromatograph, the soaking water is used as the mobile phase and is pumped into the chromatographic column with the stationary phase through the high pressure infusion system. According to the chemical properties of different pesticides, their relative affinity between the stationary phase and the mobile phase will be different, causing them to pass through the chromatographic column at different rates, thereby achieving the separation and detection of each component. When the test result shows that the pesticide residue is lower than the set standard, the drive motor continues to operate, and waits for the next arc-shaped protrusion to push the first pressing plate to move and control the stepping motor to start, so as to carry out the next cleaning. During one sampling and testing, since the spacing between two adjacent arc-shaped protrusions increases counterclockwise, the time interval at which the first pressing plate is pressed gradually increases and decreases when the turntable rotates clockwise. When the pesticide residue content in the results of multiple sampling tests is lower than the set value, the turntable drives the cylinder to perform clockwise circular motion and abuts against the top of the L-shaped rotating rod, thereby pushing the L-shaped rotating rod to rotate counterclockwise. The L-shaped rotating rod drives the second pressing plate to move to the right through the linkage rod, thereby pressing the second button, thereby opening the drain valve of the controller and controlling the vibration motor to stop running, and draining the water in the separation box;

[0029] 4. In the present invention, the pesticide residue separation device in the process of extracting effective ingredients from Chinese herbal medicines, starts a vibration motor to drive the vibration frame to vibrate, so that the moisture on the surface of the Chinese medicine is shaken off, reducing the residual soaking water, thereby reducing the pesticide residue, and then stops the vibration motor, and monitors the weight in the vibration frame through a pressure sensor, and judges the moisture residue by avoiding the initial weight before immersion. When the residue is higher than the set standard, the vibration motor is started to continue vibration dehydration until the moisture content is lower than the set standard, thereby facilitating subsequent drying;

[0030] 5. In the present invention, in the pesticide residue separation device during the extraction of effective ingredients from Chinese herbal medicines, when the pesticide residue is detected to exceed the preset standard during the detection process of the high performance liquid chromatograph, the drain valve is controlled to open, and the output shaft of the driving motor is controlled to rotate in the opposite direction, so that the drain valve discharges the soaking water, and re-heats the clean water in the separation box for re-soaking, and the driving motor drives the turntable to rotate counterclockwise until the cylinder abuts against the bottom of the L-shaped rotating rod. Due to the limitation of the block, the L-shaped rotating rod cannot rotate clockwise, so that the turntable cannot continue to rotate counterclockwise, and then the controller controls the driving motor to run forward to drive the turntable to rotate clockwise, thereby continuing to intermittently control the driving mechanism, thereby realizing intermittent sampling and detection of the soaking water, and each time the pesticide content is detected to exceed the standard, the water is drained and re-soaked as in the above steps, until the results of multiple tests show that the pesticide content is lower than the set standard, the soaking work is stopped, thereby ensuring that the pesticide residues of the Chinese herbal medicines are completely removed.

[0031] 6. In the present invention, the device for separating pesticide residues during the extraction of effective ingredients from Chinese herbal medicines realizes heating and vibration immersion of Chinese herbal medicines through the separation box, vibration frame and heating tube, thereby achieving efficient removal of pesticide residues, and avoiding the loss of effective ingredients from Chinese herbal medicines by controlling the heating temperature. The sampling mechanism and detector can realize intermittent sampling of immersion water, thereby ensuring the thorough removal of pesticide residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of a pesticide residue separation device in the process of extracting effective components of Chinese herbal medicines proposed by the present invention;

[0033] Figure 2 This is a schematic cross-sectional view of a pesticide residue separation device in the process of extracting effective components of Chinese herbal medicines proposed by the present invention;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the separation box and the vibration frame proposed by the present invention;

[0035] Figure 4 It is a cross-sectional structural schematic diagram of the separation box, vibration frame and adjustment mechanism proposed in the present invention;

[0036] Figure 5 for Figure 4 A partial enlarged view of part A;

[0037] Figure 6 for Figure 4 A partial enlarged view of part B;

[0038] Figure 7 A schematic diagram of the three-dimensional structure of the vibration frame and the adjustment mechanism proposed by the present invention;

[0039] Figure 8 A schematic diagram of the three-dimensional structure of the vibration frame and the adjustment mechanism proposed by the present invention from another perspective;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sampling mechanism proposed by the present invention;

[0041] Fig.10 It is a schematic cross-sectional structural diagram of the sampling mechanism proposed by the present invention;

[0042] Fig.11 for Fig.10 A partial enlarged view of part C in the middle;

[0043] Fig.12 It is a three-dimensional structural schematic diagram of the driving mechanism and the intermittent triggering mechanism proposed by the present invention;

[0044] Fig.13 This is a schematic cross-sectional structural diagram of the driving mechanism and intermittent triggering mechanism proposed in the present invention.

[0045] In the figure: 1, separation box; 101, mounting seat; 102, temperature sensor; 103, heating tube; 104, drain valve; 2, sampling box; 201, piston plate; 202, liquid inlet pipe; 203, three-way pipe; 204, cleaning pipe; 205, one-way valve; 3, detector; 301, outlet pipe; 4, vibration frame; 401, vibration motor; 402, frame; 5, stirring blade; 501, stirring motor; 502, mounting frame; 6, adjustment plate; 601, transverse spring; 602, fixing frame; 603, square frame; 604, support spring; 605, square plate; 606, support column; 607, flat plate; 608, guide column; 609, pressure sensor; 610, support frame; 611, support frame; 612, support frame; 613, support frame; 614, support frame; 615, support frame; 616, support column; 617, support frame; 618, support column; 619, support frame; 620, support frame; 621, support frame; 622, support frame; 623, support frame; 624, support frame; 625, support frame; 626, support column; 627, support frame; 628, support column; 629, pressure sensor; 630, support frame; 631, support frame; 632, support frame; 633, support frame; 634, support frame; 635, support frame; 636, support column; 637, support frame; 638, support column; 639, support frame; 640, support frame; 641, support frame; 642, support frame; 643, support frame; 644, support frame; 6 11. Ear plate; 612. Electric push rod; 7. Fixed frame; 701. First button; 702. Second button; 703. First pressing plate; 704. First spring; 705. Second pressing plate; 706. Second spring; 707. L-shaped rotating rod; 708. Stop block; 709. Linkage rod; 8. Turntable; 801. Arc-shaped protrusion; 802. U-shaped frame; 803. Horizontal axis; 804. Worm gear; 805. Worm; 806. Driving motor; 807. Cylinder; 9. Connecting plate; 901. Guide rod; 902. Driving plate; 903. Connecting shaft; 904. Rotating arm; 905. Rotating shaft; 906. Stepping motor; 907. Sprocket; 908. Fixed plate; 10. Controller. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Reference Figure 1 - Fig.13 , a pesticide residue separation device in the process of extracting effective ingredients of Chinese herbal medicine, comprising:

[0048] A separation box 1, wherein a vibration frame 4 is disposed inside the separation box 1, a vibration motor 401 is disposed on the top of the vibration frame 4, and an adjustment mechanism is disposed on the bottom of the vibration frame 4;

[0049] The sampling mechanism includes a sampling box 2, a piston plate 201, a driving mechanism and an intermittent triggering mechanism. The piston is slidably connected in the sampling box 2, and the driving mechanism is used to drive the piston plate 201 to move up and down, and the intermittent triggering mechanism is used to control the intermittent start of the driving mechanism;

[0050] The detector 3 is used for detecting the content of pesticide residues. The detector 3 adopts a high performance liquid chromatograph, and the model of the high performance liquid chromatograph adopts Vanquish HPLC.

[0051] In this embodiment, the adjustment mechanism includes a support frame 610, a fixed frame 602, an adjustment plate 6, two support columns 606 and two electric push rods 612, the two electric push rods 612 are fixedly connected to the inside of the separation box 1, the inner walls on both sides of the support frame 610 are fixedly connected with ear plates 611, and the output ends of the electric push rods 612 are fixedly connected to the tops of the corresponding ear plates 611, and the pressure sensors 609 and guide columns 608 are fixedly connected to both sides of the top of the support frame 610;

[0052] The two support columns 606 are slidably connected to the top of the support frame 610, and the bottom of the support column 606 is fixedly connected with a flat plate 607, which is movably abutted against the top of the pressure sensor 609, and the flat plate 607 is slidably sleeved on the outer side of the corresponding guide column 608, and the top of the support column 606 is fixedly connected with a square plate 605;

[0053] The two adjustment plates 6 are respectively fixedly connected to the two sides of the bottom of the vibration frame 4, and the two adjustment plates 6 are respectively slidably connected in the corresponding fixed frames 602. Both sides of the adjustment plates 6 are fixedly connected with transverse springs 601, and the other end of the transverse spring 601 is fixedly connected to the side wall of the corresponding fixed frame 602. The bottom of the fixed frame 602 is fixedly connected with a square frame 603, and two square plates 605 are respectively slidably connected in the corresponding square frames 603, and the top of the square plate 605 is fixedly connected with a support spring 604, and the top of the support spring 604 is fixedly connected to the bottom of the corresponding fixed frame 602.

[0054] In this embodiment, a plurality of mounting seats 101 are fixedly mounted on the inner wall of the separation box 1, a plurality of temperature sensors 102 are fixedly connected to the mounting seats 101, and heating pipes 103 are fixedly connected to the inner walls of both sides of the separation box 1, and a drain valve 104 is connected to the bottom of the separation box 1;

[0055] A frame 402 is fixedly mounted on the top of the vibration frame 4 , a vibration motor 401 is fixedly mounted on the top of the frame 402 , and a plurality of through holes are formed on the outer side of the vibration frame 4 .

[0056] In this embodiment, a stirring mechanism is also included, which includes a mounting frame 502, a stirring motor 501 and a stirring blade 5. The mounting frame 502 is fixedly connected to the bottom of the separation box 1, and the stirring motor 501 is fixedly installed in the mounting frame 502, and the stirring blade 5 is arranged in the separation box 1. The output shaft of the stirring motor 501 extends to the interior of the separation box 1 and is fixedly connected to the stirring blade 5, thereby facilitating the stirring of the soaking water.

[0057] In this embodiment, the driving mechanism includes a stepper motor 906, two connecting plates 9, two driving plates 902 and four fixed plates 908, the stepper motor 906 and the four fixed plates 908 are all fixedly connected to the top of the sampling box 2, and a rotating shaft 905 is rotatably connected inside the fixed plate 908, one end of which is fixedly connected to the output shaft of the stepper motor 906, and the two rotating shafts 905 located on the rear side are both fixedly connected to sprockets 907, and the same chain is installed on the two sprockets 907 for transmission, and the ends of the two rotating shafts 905 located on the same side that are close to each other are both fixedly connected to a rotating arm 904, and the other ends of the two rotating arms 904 located on the same side are fixedly connected to the same connecting shaft 903, and the two driving plates 902 are rotatably sleeved on the outer sides of the corresponding connecting shafts 903 respectively;

[0058] The two connecting plates 9 are respectively fixedly connected to the top two sides of the piston plate 201, and a plurality of guide rods 901 are fixedly connected to the top of one side of the connecting plate 9. The driving plate 902 is slidably sleeved on the outer side of the corresponding guide rod 901. The two connecting plates 9 are respectively slidably connected to the top two sides of the sampling box 2.

[0059] In this embodiment, the intermittent trigger mechanism includes a controller 10, a fixing frame 7, a U-shaped frame 802 and a driving motor 806, and the controller 10, the fixing frame 7, the U-shaped frame 802 and the driving motor 806 are all fixedly installed on the top of the sampling box 2;

[0060] A horizontal shaft 803 is rotatably installed inside the U-shaped frame 802, a worm wheel 804 and a turntable 8 are fixedly installed on the outside of the horizontal shaft 803, a plurality of arc-shaped protrusions 801 are integrally formed on the outside of the turntable 8, and the spacing between two adjacent arc-shaped protrusions 801 increases in the counterclockwise direction, a cylinder 807 is fixedly connected to the front and rear sides of the turntable 8, and a worm 805 is fixedly connected to the output shaft of the driving motor 806, and the worm 805 is meshed with the worm wheel 804 to facilitate driving the turntable 8 to rotate;

[0061] A first button 701, a second button 702, two first springs 704 and two second springs 706 are fixedly installed inside the fixing frame 7, the other ends of the two first springs 704 are fixedly connected to the same first pressing plate 703, one side of the first pressing plate 703 is integrally formed with a trapezoidal protrusion, the trapezoidal protrusion is adapted to the arc-shaped protrusion 801, the first pressing plate 703 is adapted to the first button 701, and the other side of the first pressing plate 703 is fixedly connected to a plurality of cross bars, the cross bars are slidably connected in the fixing frame 7, and the other ends of the two second springs 706 are fixedly connected to the same second pressing plate 705, the second pressing plate 705 is adapted to the second button 702, and two round rods are slidably connected in the second pressing plate 705, one end of the round rods is fixedly connected in the fixing frame 7;

[0062] The front and rear sides of the fixing frame 7 are both rotatably connected with L-shaped rotating rods 707, one end of the two L-shaped rotating rods 707 is movably abutted against the front and rear sides of the rotating disk 8, and the other end of the L-shaped rotating rod 707 is hinged with a linkage rod 709, and the two linkage rods 709 are rotatably connected to the front and rear sides of the second pressing plate 705;

[0063] The first button 701, the second button 702, the vibration motor 401 and the stepper motor 906 are all electrically connected to the controller 10. When the first button 701 is pressed, the controller 10 controls the stepper motor 906 to start, and when the second button 702 is pressed, the controller 10 controls the vibration motor 401 to stop running.

[0064] The front and rear sides of the fixing frame 7 are both fixedly connected with stoppers 708 , and the stoppers 708 are movably abutted against one side of the L-shaped rotating rod 707 .

[0065] In this embodiment, through holes are provided on both top and bottom sides of the sampling box 2, and one-way valves 205 are arranged in the through holes. The two through holes on the left are respectively connected to the liquid inlet pipe 202 and the cleaning pipe 204, and the two through holes on the right are connected to the same three-way pipe 203. The right end of the three-way pipe 203 is connected to the inlet port of the detector 3, and the outlet port of the detector 3 is connected to the outlet pipe 301.

[0066] The controller is connected to the detector 3 by signal, and the detector 3 transmits the pesticide residue detection result information to the controller. When the pesticide residue exceeds the preset standard, the drain valve 104 is controlled to open, and the output shaft of the drive motor 806 is controlled to rotate in the reverse direction.

[0067] In this embodiment, when in use, by placing Chinese herbal medicines in the vibration frame 4 and adding clean water into the separation box 1, so that the clean water completely immerses the Chinese herbal medicines, water molecules will penetrate into the surface and interior of the herbal medicines and interact with the pesticide molecules in the herbal medicines. Some water-soluble pesticide molecules will gradually dissolve into the water, while some pesticide molecules that are not easily soluble in water will fall from the surface of the herbal medicines as they are flushed with water, thereby achieving the effect of removing pesticide residues, and by starting the vibration motor 401 to drive the vibration frame 4 to vibrate, so that the Chinese herbal medicines inside it are fully in contact with the water, thereby improving the soaking effect, and by starting the electric push rod 612 to drive the support frame 610 to move upward, thereby driving the vibration frame 4 to move up and down, so as to adjust the soaking depth as needed;

[0068] By starting the heating tube 103 to heat the water in the separation box 1, heating can increase the movement speed of the pesticide molecules, making it easier to separate from the food surface. At the same time, high temperature may also change the chemical structure of the pesticide, thereby reducing its toxicity. In agricultural production, many pesticides are physically attached to the surface of agricultural products rather than chemically combined. Therefore, by heating, these pesticide molecules can be effectively made to fall off from the surface of food or decompose into simpler, low-toxic or non-toxic substances. During the heating process, some pesticide components that were originally insoluble in water may become easy to dissolve and then be taken away by water. The temperature of the water in the separation box 1 is monitored by the temperature sensor 102, so as to maintain the temperature of the water in the separation box 1 at 70-80°C, thereby avoiding boiling and causing the loss of effective ingredients in the herbal medicine. At the same time, the stirring motor 501 can be started to drive the stirring blade 5 to rotate, thereby stirring the water. The movement of the water can be accelerated during the stirring process, so that the water can be heated more evenly and the water can better contact and flush the Chinese medicine to improve the removal effect of pesticide residues. The temperature sensors 102 at different positions can be used to monitor the temperature at multiple points. When the temperature difference at different positions exceeds the set range, the stirring motor 501 is controlled to rotate faster, thereby improving the stirring effect of the water and ensuring uniform heating.

[0069] The worm 805 is driven to rotate by starting the driving motor 806. The worm 805 drives the horizontal shaft 803 and the turntable 8 to rotate slowly clockwise by meshing with the worm wheel 804. The turntable 8 pushes the first pressing plate 703 to move rightward and presses the first button 701 through the contact between the arc-shaped protrusion 801 and the trapezoidal protrusion. The first button 701 controls the operation of the stepping motor 906 through the controller, thereby driving the rotating shaft 905 to rotate one circle and then stop. During the rotation of the rotating shaft 905, the rotating arm 904, the connecting shaft 903 and the sprocket 907 drive the remaining four rotating shafts 905 to rotate synchronously, and drive the two connecting shafts 903 to perform circular motion. The connecting shaft 903 is driven by the driving arm 904, the connecting shaft 903 and the sprocket 907. The cooperation of plate 902 and guide rod 901 drives connecting plate 9 to move upward and then downward, and connecting plate 9 drives piston plate 201 to move synchronously. Piston plate 201 divides sampling box 2 into upper cavity and lower cavity, and adds clean water in the upper cavity in advance, and connects one end of flushing pipe with the water supply pipe of clean water. When piston plate 201 moves upward, the soaking water in separation box 1 enters the lower cavity through liquid inlet pipe 202, and at the same time, the clean water in the upper cavity is introduced into detector 3 through three-way pipe 203 to clean detector 3, so as to avoid interference with subsequent detection. When piston plate 201 moves downward, clean water enters the upper cavity through flushing pipe to realize replenishment. Filling and avoiding the next cleaning, at the same time, the immersion water in the lower cavity enters the detector 3, and the immersion water in the high performance liquid chromatograph is used as the mobile phase, and is pumped into the chromatographic column equipped with the stationary phase through the high pressure infusion system. According to the chemical properties of different pesticides, their relative affinity between the stationary phase and the mobile phase will be different, causing them to pass through the chromatographic column at different rates, thereby realizing the separation and detection of each component. When the test result shows that the pesticide residue is lower than the set standard, the drive motor 806 continues to operate, and waits for the next arc-shaped protrusion 801 to push the first pressing plate 703 to move, and controls the stepping motor 906 to start, so as to perform sampling and detection again. The distance between two adjacent arc-shaped protrusions 801 increases counterclockwise, so that the time interval at which the first pressing plate 703 is pressed gradually increases and decreases when the turntable 8 rotates clockwise. When the pesticide residue content in the results of multiple sampling tests is lower than the set value, the turntable 8 drives the cylinder 807 to perform clockwise circular motion and abuts against the top of the L-shaped rotating rod 707, thereby pushing the L-shaped rotating rod 707 to rotate counterclockwise. The L-shaped rotating rod 707 drives the second pressing plate 705 to move rightward through the linkage rod 709, thereby pressing the second button 702, so that the water in the separation box 1 is discharged by opening the drain valve 104 of the controller and controlling the vibration motor 401 to stop running;

[0070] After the water in the separation box 1 is drained, the vibration motor 401 is started to drive the vibration frame 4 to vibrate, so that the moisture on the surface of the Chinese medicine is shaken off, reducing the residual soaking water, thereby reducing the pesticide residue, and then the vibration motor 401 is stopped, and the weight in the vibration frame 4 is monitored by the pressure sensor 609, and the moisture residue is judged by avoiding the initial weight before immersion. When the residual amount is higher than the set standard, the vibration motor 401 is started to continue vibration dehydration until the moisture content is lower than the set standard, so as to facilitate subsequent drying;

[0071] During the detection process of the high performance liquid chromatography, when it is detected that the pesticide residue exceeds the preset standard, the drain valve 104 is controlled to open, and the output shaft of the drive motor 806 is controlled to rotate in the opposite direction, so that the drain valve 104 discharges the soaking water and re-heats the clean water in the separation box 1 for re-immersion. The drive motor 806 drives the turntable 8 to rotate counterclockwise until the cylinder 807 abuts against the bottom of the L-shaped rotating rod 707. Due to the limitation of the block 708, the L-shaped rotating rod 707 cannot rotate clockwise, so that the turntable 8 cannot continue to rotate counterclockwise. Then the controller controls the drive motor 806 to run forward to drive the turntable 8 to rotate clockwise, thereby continuing to intermittently control the drive mechanism, thereby realizing intermittent sampling and detection of the soaking water. Each time the pesticide content exceeds the standard, the water is drained and re-immersed as in the above steps until the pesticide content is lower than the set standard for multiple detection results, and the soaking work is stopped, thereby ensuring the thorough removal of pesticide residues in Chinese herbal medicines.

[0072] The above is a detailed introduction to the pesticide residue separation device in the process of extracting effective ingredients from Chinese herbal medicines provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for separating pesticide residues in the process of extracting effective ingredients from Chinese herbal medicines, characterized in that: include: A separation box (1), wherein a vibration frame (4) is arranged inside the separation box (1), a vibration motor (401) is arranged on the top of the vibration frame (4), and an adjustment mechanism is arranged on the bottom of the vibration frame (4); A sampling mechanism, the sampling mechanism comprising a sampling box (2), a piston plate (201), a driving mechanism and an intermittent triggering mechanism, the piston being slidably connected in the sampling box (2), the driving mechanism being used to drive the piston plate (201) to move up and down reciprocatingly, and the intermittent triggering mechanism being used to control the intermittent activation of the driving mechanism; The detector (3) is used to detect the content of pesticide residues, and the detector (3) adopts a high performance liquid chromatograph.

2. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: The adjustment mechanism comprises a support frame (610), a fixed frame (602), an adjustment plate (6), two support columns (606) and two electric push rods (612); the two electric push rods (612) are fixedly connected to the inside of the separation box (1); ear plates (611) are fixedly connected to the inner walls on both sides of the support frame (610); the output ends of the electric push rods (612) are fixedly connected to the tops of the corresponding ear plates (611); and pressure sensors (609) and guide columns (608) are fixedly connected to both sides of the top of the support frame (610); The two support columns (606) are both slidably connected to the top of the support frame (610), the bottom end of the support column (606) is fixedly connected to a flat plate (607), the flat plate (607) is movably abutted against the top of the pressure sensor (609), and the flat plate (607) is slidably sleeved on the outer side of the corresponding guide column (608), and the top end of the support column (606) is fixedly connected to a square plate (605); The two adjustment plates (6) are respectively fixedly connected to the two sides of the bottom of the vibration frame (4), and the two adjustment plates (6) are respectively slidably connected in the corresponding fixed frame (602), and the two sides of the adjustment plate (6) are fixedly connected with a transverse spring (601), and the other end of the transverse spring (601) is fixedly connected to the side wall of the corresponding fixed frame (602), and the bottom of the fixed frame (602) is fixedly connected with a square frame (603), and the two square plates (605) are respectively slidably connected in the corresponding square frame (603), and the top of the square plate (605) is fixedly connected with a support spring (604), and the top of the support spring (604) is fixedly connected to the bottom of the corresponding fixed frame (602).

3. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: A plurality of mounting seats (101) are fixedly mounted on the inner wall of the separation box (1), a plurality of temperature sensors (102) are fixedly connected to the mounting seats (101), heating pipes (103) are fixedly connected to the inner walls on both sides of the separation box (1), and a drain valve (104) is connected to the bottom of the separation box (1); A frame (402) is fixedly mounted on the top of the vibration frame (4), the vibration motor (401) is fixedly mounted on the top of the frame (402), and a plurality of through holes are provided on the outer side of the vibration frame (4).

4. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: The invention also comprises a stirring mechanism, wherein the stirring mechanism comprises a mounting frame (502), a stirring motor (501) and a stirring blade (5); the mounting frame (502) is fixedly connected to the bottom of the separation box (1); the stirring motor (501) is fixedly installed in the mounting frame (502); the stirring blade (5) is arranged in the separation box (1); and the output shaft of the stirring motor (501) extends into the interior of the separation box (1) and is fixedly connected to the stirring blade (5).

5. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: The driving mechanism comprises a stepper motor (906), two connecting plates (9), two driving plates (902) and four fixed plates (908), wherein the stepper motor (906) and the four fixed plates (908) are all fixedly connected to the top of the sampling box (2), and a rotating shaft (905) is rotatably connected inside the fixed plate (908), wherein one end of one rotating shaft (905) is fixedly connected to the output shaft of the stepper motor (906), and the two rotating shafts (905) located at the rear side are both fixedly connected to a sprocket (907), and the same chain is installed on the two sprockets (907) for transmission, and the ends of the two rotating shafts (905) located on the same side that are close to each other are both fixedly connected to a rotating arm (904), and the other ends of the two rotating arms (904) located on the same side are fixedly connected to the same connecting shaft (903), and the two driving plates (902) are respectively rotatably sleeved on the outer sides of the corresponding connecting shafts (903); The two connecting plates (9) are respectively fixedly connected to the top two sides of the piston plate (201), and a plurality of guide rods (901) are fixedly connected to the top of one side of the connecting plate (9). The driving plate (902) is slidably sleeved on the outer side of the corresponding guide rod (901), and the two connecting plates (9) are respectively slidably connected to the top two sides of the sampling box (2).

6. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: The intermittent trigger mechanism comprises a controller, a fixing frame (7), a U-shaped frame (802) and a driving motor (806), wherein the controller, the fixing frame (7), the U-shaped frame (802) and the driving motor (806) are all fixedly mounted on the top of the sampling box (2); A transverse shaft (803) is rotatably mounted inside the U-shaped frame (802), a worm wheel (804) and a turntable (8) are fixedly mounted on the outer side of the transverse shaft (803), a plurality of arc-shaped protrusions (801) are integrally formed on the outer side of the turntable (8), the spacing between two adjacent arc-shaped protrusions (801) increases in a counterclockwise direction, cylinders (807) are fixedly connected to the front and rear sides of the turntable (8), and a worm (805) is fixedly connected to the output shaft of the drive motor (806), and the worm (805) is meshed with the worm wheel (804); A first button (701), a second button (702), two first springs (704) and two second springs (706) are fixedly installed inside the fixing frame (7); the other ends of the two first springs (704) are fixedly connected to the same first pressing plate (703); a trapezoidal protrusion is integrally formed on one side of the first pressing plate (703); the trapezoidal protrusion is matched with the arc-shaped protrusion (801); the first pressing plate (703) is matched with the first button (701); and a plurality of cross bars are fixedly connected to the other side of the first pressing plate (703); the cross bars are slidably connected in the fixing frame (7); and the other ends of the two second springs (706) are fixedly connected to the same second pressing plate (705); the second pressing plate (705) is matched with the second button (702); and two round bars are slidably connected in the second pressing plate (705); and one end of the round bar is fixedly connected in the fixing frame (7); The front and rear sides of the fixing frame (7) are both rotatably connected to L-shaped rotating rods (707), one end of the two L-shaped rotating rods (707) are movably abutted against the front and rear sides of the rotating disk (8), and the other end of the L-shaped rotating rod (707) is hinged with a linkage rod (709), and the two linkage rods (709) are rotatably connected to the front and rear sides of the second pressing plate (705); The first button (701), the second button (702), the vibration motor (401) and the stepping motor (906) are all electrically connected to the controller; when the first button (701) is pressed, the controller controls the stepping motor (906) to start, and when the second button (702) is pressed, the controller controls the vibration motor (401) to stop running; The front and rear sides of the fixing frame (7) are both fixedly connected with stoppers (708), and the stoppers (708) are movably abutted against one side of the L-shaped rotating rod (707).

7. The device for separating pesticide residues in the process of extracting effective components of Chinese herbal medicine according to claim 1, characterized in that: The sampling box (2) is provided with through holes at the top and bottom of both sides, wherein one-way valves (205) are arranged in the through holes, and the two through holes on the left side are respectively connected to a liquid inlet pipe (202) and a cleaning pipe (204), and the two through holes on the right side are connected to a same three-way pipe (203), the right end of the three-way pipe (203) is connected to the inlet of the detector (3), and the outlet of the detector (3) is connected to an outlet pipe (301).

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