A pesticide extraction device for isoxazoline insecticide production

Abstract

The application relates to the technical field of pesticide extraction, and discloses a pesticide extraction device for isoxazoline insecticide production, which comprises an extraction tank, a liquid discharge pipe is fixedly inserted into the left wall of the extraction tank, a sealing piece is movably inserted into the top of the extraction tank, an inner filter drum with an open top is rotationally connected to the middle of the extraction tank, an elastic outer filter drum is slidably connected to the periphery of the inner filter drum, a swing control assembly for adjusting the up-down movement of the elastic outer filter drum is arranged between the elastic outer filter drum and the extraction tank, and the elastic outer filter drum and the filtering part of the inner filter drum are vertically staggered. The pesticide extraction efficiency is improved by controlling the front-back folding of the two resistance plates, crushing the plant raw materials by the pressure tooth roller and the up-down moving driven pressure roller, so that the plant raw materials flow rapidly with the solvent during extrusion, the dissolution and diffusion rates of the pesticide components are improved, the use of the solvent is avoided, and the smooth release, the full separation of the pesticide components from the plant residues driven by the solvent are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pesticide extraction, in particular to a pesticide extraction device for the production of isoxazoline insecticides. BACKGROUND

[0002] Currently, the production of isoxazoline insecticides relies on organic synthesis, and the core raw materials include nitriles, ketones, amines, halogenated hydrocarbons and other chemical reagents, which are used to construct a molecular structure with insecticidal activity through multi-step reactions. In actual production, plant-derived toxin components can be added to isoxazoline insecticides. By combining the advantages of both, the insecticidal effect can be improved, the safety can be enhanced, or the insecticidal spectrum can be expanded.

[0003] The patent with publication number CN119838265A discloses a pesticide extraction device for pesticide production, which includes a separation tank, a top end cover connected to the separation tank, a separation net cylinder, two sides of the top of the separation net cylinder being fixedly connected to the bottom of the end cover through connecting columns, an extrusion assembly installed on one side of the bottom of the end cover, both ends of the extrusion assembly being arranged at both ends of the separation net cylinder, the extrusion assembly being used for repeatedly extruding the internal raw materials of the separation net cylinder, and a stirring assembly installed at the bottom of the inner cavity of the separation tank, the stirring assembly being used for stirring the solvent.

[0004] The pesticide extraction device for pesticide production in the above patent uses the extrusion assembly to reciprocally extrude the plant raw materials in the separation net cylinder from both ends to promote the release of pesticide components. Since the plant raw materials gather towards the middle when pressed from both sides, the plant raw materials in the middle accumulate tightly, forming a certain obstruction, and the middle area cannot be directly and fully acted on by the extrusion assembly, which is not conducive to the release of pesticide components, and multiple extrusions are required to completely release the pesticide components as much as possible, resulting in a low extraction efficiency. The solvent needs to be fully filled into the separation tank and higher than the separation net cylinder during use, which results in a large amount of solvent used, a low concentration of pesticide components dispersed in the solvent, and a reduced extraction driving force, thereby reducing the extraction efficiency and increasing the subsequent processing burden. When the extrusion assembly extrudes from both ends, the pressure is always concentrated, and plant residues are easily pressed into the filter holes to cause blockage. The solvent and pesticide components in the plant residues are easily left behind. SUMMARY

[0005] The present application aims to solve the problems of low extraction efficiency, excessive use of solvent, slow release and easy residue of the general pesticide extraction device for pesticide production in use, and provides a pesticide extraction device for the production of isoxazoline insecticides.

[0006] To achieve the above-mentioned purpose, the present application specifically adopts the following technical solutions:

[0007] The utility model provides a pesticide extraction device for isoxazoline insecticide production, including the extraction tank, the left wall fixed plug of extraction tank has the liquid discharge pipe, the top movable plug of extraction tank has the sealing element, the middle part rotationally connected of extraction tank has the inner filter drum of top opening, the periphery of outer filter drum of outer filter drum of inner filter drum is linked with elasticity and is provided with swing control component between outer filter drum and extraction tank and adjusts the elasticity of outer filter drum and moves up and down, and the filter part of outer filter drum and inner filter drum is up and down misplacement.

[0008] The middle part of the inner filter drum is rotatably connected with two opposite connecting pipes on both sides, the opposite side of the two pipes is fixedly connected with a stop plate, the middle part of the stop plate is rotatably connected with a pressure tooth roller, the top of the stop plate on both sides is fixedly connected with a gear ring meshing with the opposite side pressure tooth roller, the gear ring passes through the opposite side of the stop plate, the middle part of the stop plate is movably connected with a driven pressure roller, and the middle part of the stop plate is provided with an adjusting assembly for driving the driven pressure roller to rotate up and down.

[0009] Further, the bottom of the inner filter drum is fixedly installed with a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected with a guide rod penetrating through the two pipes, the top of the inner filter drum is provided with a key cap slidably connected with the guide rod, and the inner walls of the two pipes on both sides are respectively provided with arc grooves in opposite directions.

[0010] Further, the adjusting assembly comprises a sealing sleeve fixedly connected to the middle part of the stop plate on both sides, a sealing ring rotatably connected to the end of the sealing sleeve and adapted to the driven pressure roller, the driven pressure roller slidably connected between the two sealing rings, a driven gear rod rotatably connected to the middle part of the sealing sleeve on the top and meshing with the pressure tooth roller, and the driven gear rod slidably connected inside the driven pressure roller.

[0011] Further, the driven pressure roller is hollow and has a protrusion on the inner wall, the middle part of the bottom sealing sleeve is fixedly connected with a limiting rod, the limiting rod is provided with a curved groove in communication with the ends, and the protrusion is movably connected with the curved groove.

[0012] Further, the stop plate is movably sealed against the inner wall of the inner filter drum and the outer wall of the adjacent pipe, and the stop plate is provided with a through groove adapted to the pressure tooth roller, the driven pressure roller and the gear ring.

[0013] Further, the sealing element comprises a sealing cover movably inserted into the top of the extraction tank, the inner wall of the top of the extraction tank has a groove, the sealing cover is provided with a sealing ring movably connected with the groove on the periphery, the bottom of the sealing cover is rotatably connected with a sealing disc adapted to the opening of the top of the inner filter drum, the middle part of the sealing disc is provided with a tubular adjusting part penetrating through the sealing cover, and the bottom of the sealing disc can be movably connected with the upper wall of the stop plate.

[0014] Further, the right wall of the extraction tank is fixedly connected with a motor frame, a driving motor is installed at the bottom of the motor frame, the output end of the driving motor is inside the motor frame, and a transmission belt is movably connected between the driving motor output end and the inner filter drum, and the right wall of the extraction tank has a through slot corresponding to the transmission belt.

[0015] Further, the swing control assembly comprises an electromagnetic ring fixedly connected to the upper wall of the inner cavity of the extraction tank, the top of the elastic outer filter drum is fixedly connected with a magnetic ring capable of repelling the electrified electromagnetic ring, the top of the elastic outer filter drum is fixedly connected with a sliding column on the outer wall of the front and rear sides, the elastic outer filter drum is elastically connected to the key groove upper wall of the outer wall of the inner filter drum through the key protrusion, the inner wall of the extraction tank has a baffle movably abutting against the outer wall of the elastic outer filter drum, the top block is fixedly connected to the upper surface of the baffle, and the top block has a slope surface corresponding to the sliding column on the front and rear sides.

[0016] The beneficial effects of the present application are as follows:

[0017] 1、The elastic outer filter drum is used to seal the inner filter drum, and the two sides of the baffle are controlled to be folded forward and backward, so that the plant raw materials in the front and rear chambers are extruded, and the plant raw materials on the two baffle rollers are automatically engaged and crushed by the driven pressure roller to output to the other side, the adjustment assembly drives the driven pressure roller to move up and down to tear the plant raw materials, so that the plant raw materials are fully crushed after one extrusion to promote the release of pesticide components, the pesticide extraction efficiency is improved, and in addition, the relative sealing design of the front and rear chambers is used, so that the plant raw materials flow rapidly under the action of pressure when extruding, the crushing rate through the baffle is improved, and the dissolution and diffusion rate of pesticide components is improved.

[0018] 2、The elastic outer filter drum is used to seal the inner filter drum, and the two sides of the baffle are controlled to be folded forward and backward, so that the plant raw materials in the front and rear chambers are extruded, and the plant raw materials on the two baffle rollers are automatically engaged and crushed by the driven pressure roller to output to the other side, the adjustment assembly drives the driven pressure roller to move up and down to tear the plant raw materials, so that the plant raw materials are fully crushed after one extrusion to promote the release of pesticide components, the pesticide extraction efficiency is improved, and in addition, the relative sealing design of the front and rear chambers is used, so that the plant raw materials flow rapidly under the action of pressure when extruding, the crushing rate through the baffle is improved, and the dissolution and diffusion rate of pesticide components is improved.

[0019] 3、After the pesticide components are fully dissolved and diffused into the solvent, the inner filter drum drives the elastic outer filter drum to rotate, and the swing control assembly automatically drives the elastic outer filter drum to move up and down, so that the solvent is intermittently released, and the baffle is continuously deflected to reliably scrape and push the plant residues on the inner wall of the inner filter drum, so that the plant residues are prevented from blocking the filter part under the driving force of pressure difference and flow, the smoothness of solvent release is ensured, and centrifugal release is used to ensure that the solvent fully separates the pesticide components from the plant residues. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a three-dimensional structure diagram of the extraction device of the present application;

[0021] Figure 2 is a three-dimensional sectional view of the extraction tank part of the extraction device of the present application;

[0022] Figure 3 The extraction tank and the inner filter drum of the extraction device of the present invention are cut into three dimensions. Figure 1 ;

[0023] Figure 4 The extraction tank and the inner filter drum of the extraction device of the present invention are cut into three dimensions. Figure 2 ;

[0024] Figure 5 This is a three-dimensional exploded view of the sealing cover and inner filter drum of the extraction device of the present invention;

[0025] Figure 6 It is a three-dimensional cutaway view of the filter drum and the abutment plate portion of the extraction device of the present invention;

[0026] Figure 7 The extraction device of the present invention is a three-dimensional section explosion of the back plate and the driven pressure roller Figure 1 ;

[0027] Figure 8 The extraction device of the present invention is a three-dimensional section explosion of the back plate and the driven pressure roller Figure 2 ;

[0028] Figure 9 It is a three-dimensional structural diagram of the support plate and gear ring of the extraction device of the present invention.

[0029] Figure numerals: 1. Extraction tank; 11. Liquid discharge pipe; 12. Sealing cover; 13. Sealing disk; 14. Electromagnetic ring; 15. Top block; 2. Inner filter drum; 21. Elastic outer filter drum; 22. Magnetic ring; 23. Sliding column; 3. Conduit; 31. Arc groove; 32. Abutment plate; 33. Gear ring; 34. Gear roller; 4. Sealing sleeve; 41. Sealing ring; 42. Driven pressure roller; 43. Protrusion; 44. Driven gear rod; 45. Limit rod; 46. Curved groove; 5. Telescopic cylinder; 51. Guide rod; 52. Pin protrusion. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] Example 1, as Figures 1-9 As shown, a pesticide extraction device for the production of isoxazoline insecticides includes an extraction tank 1, a liquid discharge pipe 11 is fixedly connected to the left wall of the extraction tank 1, a sealing member is movably connected to the top of the extraction tank 1, an inner filter drum 2 with a top opening is rotatably connected to the middle of the extraction tank 1, an elastic outer filter drum 21 is slidably connected to the periphery of the inner filter drum 2, and a swing control assembly for adjusting the upward and downward movement of the elastic outer filter drum 21 is provided between the elastic outer filter drum 21 and the extraction tank 1, and the filter portions of the elastic outer filter drum 21 and the inner filter drum 2 are vertically offset;

[0032] Two opposite connecting pipes 3 are rotatably connected to the upper and lower sides of the middle of the inner filter drum 2, and the opposite sides of the two connecting pipes 3 are fixedly connected with abutting plates 32. The middle of each abutting plate 32 is rotatably connected with a pressure tooth roller 34. The top of each abutting plate 32 is fixedly connected with a gear ring 33 which is engaged with the pressure tooth roller 34 on the opposite side. The two gear rings 33 are arranged in an up-down manner, and the gear ring 33 passes through the abutting plate 32 on the opposite side. The middle of each abutting plate 32 is movably connected with a driven pressure roller 42. The middle of each abutting plate 32 is provided with an adjusting assembly which drives the up-down rotation of the driven pressure roller 42.

[0033] The right wall of the extraction tank 1 is fixedly connected with a motor bracket. The bottom of the motor bracket is provided with a driving motor. The output end of the driving motor is located in the interior of the motor bracket, and the driving motor is movably connected with a transmission belt between the motor bracket and the inner filter drum 2. The right wall of the extraction tank 1 is provided with a through slot corresponding to the transmission belt.

[0034] Before the pesticide extraction, the plant raw material and the solvent are put into the inner filter drum 2 together by opening the sealing part, and are uniformly distributed in front of and behind the abutting plate 32, and then the sealing part is reset. Since the elastic outer filter drum 21 is misaligned with the inner filter drum 2 for sealing, the solvent cannot leak, and the solvent and the plant raw material coexist in the extrusion extraction cavity in the inner filter drum 2, thereby avoiding excessive use of the solvent. When the pesticide extraction is performed, the abutting plates 32 on both sides are controlled to be folded forward and backward respectively, so as to extrude the plant raw material in the front and rear chambers. After the plant raw material is crushed under pressure, the internal pesticide components are automatically released into the solvent. During this period, the pressure tooth rollers 34 on the two abutting plates 32 cooperate with the driven pressure rollers 42 to automatically bite and crush the plant raw material on the pressure side and output it to the other side. The adjusting assembly drives the driven pressure rollers 42 to move up and down, so that the plant raw material is fully crushed after one extrusion to promote the release of pesticide components, thereby improving the pesticide extraction efficiency. Since the relative sealing of the front and rear chambers during extrusion, the plant raw material flows rapidly with the solvent under the action of pressure during extrusion, thereby promoting the rapid passage of the plant raw material between the pressure tooth rollers 34 and the driven pressure rollers 42, and improving the dissolution and diffusion rate of the pesticide components. When the pesticide components are fully dissolved and diffused into the solvent, the abutting plates 32 on both sides are controlled to be repeatedly folded forward and backward, the liquid outlet pipe 11 is controlled to be opened, the motor is controlled to drive the inner filter drum 2 to rotate rapidly through the transmission belt, the inner filter drum 2 drives the elastic outer filter drum 21 to centrifuge the solution, and the swing control assembly automatically drives the elastic outer filter drum 21 to move up and down. When the filter part on the elastic outer filter drum 21 is connected with the filter part on the inner filter drum 2, the solvent is automatically thrown out under the action of centrifugal force. When the filter part on the elastic outer filter drum 21 is misaligned with the filter part on the inner filter drum 2, the solvent is forced to stop releasing. The pressure difference and flow driving force of the plant residues blocking the filter part are reduced, so that the abutting plate 32 which is deflected reliably scrapes and pushes the plant residues blocking the filter part on the inner wall of the inner filter drum 2, thereby avoiding that the plant residues are deeply pressed into the filter holes of the filter part by the abutting plate 32 under the driving of the pressure difference and flow driving force, and ensuring the smoothness of the release of the solvent by the elastic outer filter drum 21. Since the centrifugal release is adopted, the pesticide components are fully separated from the plant residues by the solvent, and residue is avoided.

[0035] In example two, on the basis of the above-mentioned examples, the inner filter drum 2 is fixedly installed with a telescopic cylinder 5 at the bottom, the telescopic cylinder 5 is fixedly connected with a guide rod 51 penetrating through the two guide pipes 3, the inner filter drum 2 is provided with a key cap slidingly connected with the guide rod 51 at the top, and the inner walls of the two guide pipes 3 are respectively provided with arc grooves 31 in opposite directions, and the rear wall of the guide rod 51 has two pin protrusions 52 movably connected with the corresponding arc grooves 31.

[0036] The telescopic cylinder 5 reciprocatingly telescopes to drive the guide rod 51 to reciprocate up and down, the guide rod 51 drives the pin convex 52 to extrude the upper and lower arc grooves 31, thereby driving the two guide pipes 3 to make the two resisting plates 32 deflect and fold synchronously, so as to extrude the plant raw materials in the two chambers. Since the telescopic cylinder 5 is installed at the bottom of the inner filter drum 2, the deflection and folding of the two resisting plates 32 are not affected by the rotation of the inner filter drum 2, which facilitates the subsequent automatic cleaning of the inner wall filtering part of the inner filter drum 2 by the resisting plate 32 during the rotation of the inner filter drum 2.

[0037] In the above embodiment, the adjusting assembly includes a sealing sleeve 4 fixedly connected to the middle part of the resisting plate 32 on both sides, the sealing sleeve 4 is rotatably connected with a sealing ring 41 matched with the driven pressure roller 42, the driven pressure roller 42 is slidingly connected between the two sealing rings 41, the middle part of the top sealing sleeve 4 is rotatably connected with a driven gear rod 44 engaged with the pressure gear roller 34, and the driven gear rod 44 is slidingly connected inside the driven pressure roller 42.

[0038] The driven pressure roller 42 is hollow inside and has a protrusion 43 on the inner wall, the middle part of the bottom sealing sleeve 4 is fixedly connected with a limiting rod 45, the limiting rod 45 is provided with a curved groove 46 with a first end and a second end, and the protrusion 43 is slidingly connected with the curved groove 46.

[0039] When the two resisting plates 32 are folded forward or backward, the gear ring 33 on one side automatically drives the pressure gear roller 34 on the other side to rotate, and the pressure gear roller 34 drives the driven pressure roller 42 to rotate through the driven gear rod 44. Since the two resisting plates 32 deflect at the same time, the gear ring 33 and the pressure gear roller 34 are driven to deflect, and the pressure gear roller 34 drives the driven pressure roller 42 to rotate quickly, which cooperates with the folding of the two resisting plates 32 to extrude the plant raw materials. The pressure gear roller 34 and the driven pressure roller 42 quickly bite and crush the plant raw materials on one side and output them to the other side.

[0040] When the driven gear rod 44 rotates, the protrusion 43 on the inner wall extrudes the curved groove 46. Since the limiting rod 45 is fixed, the protrusion 43 drives the driven pressure roller 42 to reciprocate up and down under the guidance of the curved groove 46, which cooperates with the dynamic biting of the pressure gear roller 34 to pull and tear the plant raw materials upward and downward when they are bitten, so as to tear the plant raw materials and promote the release of pesticide components after extrusion, thereby improving the pesticide extraction efficiency. When the driven pressure roller 42 reciprocates up and down and rotates, the sealing ring 41 automatically cooperates with the sealing of the two sealing sleeves 4, thereby avoiding the plant raw materials from passing through the area outside the biting gap between the pressure gear roller 34 and the driven pressure roller 42, which leads to incomplete extrusion and crushing of any chamber, further improving the pesticide extraction efficiency.

[0041] In the above embodiment, the abutting plate 32 is movably sealed against the inner wall of the inner filter drum 2 and the outer wall of the adjacent conduit 3, and a through slot is formed in the abutting plate 32 and adapted to the pressure tooth roller 34, the driven pressure roller 42 and the gear ring 33.

[0042] Through the design, when the abutting plate 32 extrudes the plant raw materials, the sealing element is matched to form a relative seal between the front and rear extrusion chambers, and the plant raw materials flow rapidly under the action of the solvent, thereby promoting the rapid passing of the plant raw materials between the pressure tooth roller 34 and the driven pressure roller 42, and improving the dissolution and diffusion rate of the pesticide components.

[0043] In the above embodiment, the sealing element includes a sealing cover 12 movably inserted into the top of the extraction tank 1, the inner wall of the top of the extraction tank 1 has a groove, the sealing cover 12 is provided with a sealing ring movably connected with the groove, and the bottom of the sealing cover 12 is rotatably connected with a sealing disc 13 adapted to the opening at the top of the inner filter drum 2. The middle of the sealing disc 13 is provided with a tubular adjusting part penetrating the sealing cover 12, and the bottom of the sealing disc 13 can movably abut against the upper wall of the abutting plate 32.

[0044] Through the sealing disc 13, the top of the front and rear extrusion chambers can be sealed, thereby enhancing the sealing performance of the extrusion chamber and improving the extrusion effect of the plant raw materials. The tubular adjusting part penetrating the sealing cover 12 facilitates the alignment of the sealing disc 13 with the opening at the top of the inner filter drum 2 during installation of the sealing element, thereby ensuring quick installation. Subsequently, when the inner filter drum 2 rotates, the sealing disc 13 can be used to rotate and seal the inner filter drum 2.

[0045] In the above embodiment, the swing control assembly includes an electromagnetic ring 14 fixedly connected to the upper wall of the inner cavity of the extraction tank 1, a magnetic ring 22 fixedly connected to the top of the elastic outer filter drum 21 and repulsive to the electrified electromagnetic ring 14, a sliding column 23 fixedly connected to the outer wall of the top of the elastic outer filter drum 21 on both sides, and the elastic outer filter drum 21 is elastically connected to the upper wall of the key groove of the outer wall of the inner filter drum 2 through a key protrusion. The inner wall of the extraction tank 1 has a partition plate movably abutting against the outer wall of the elastic outer filter drum 21, and the top block 15 is fixedly connected to the upper surface of the partition plate on both sides. The top block 15 has a slope surface corresponding to the sliding column 23 on both sides.

[0046] When the inner filter drum 2 drives the elastic outer filter drum 21 to rotate, the control electromagnetic ring 14 is powered to repel the magnetic ring 22 to move downward, the elastic outer filter drum 21 which is initially misaligned with the filter part of the inner filter drum 2 is driven by the magnetic ring 22 to move downward, and the elastic outer filter drum 21 is connected with the filter part of the inner filter drum 2, and the solvent is automatically discharged under the centrifugal force through the inner filter drum 2 and the elastic outer filter drum 21. When the slide column 23 stably passes through the top block 15 along the slope surface, the elastic outer filter drum 21 is automatically lifted to misalign the filter part with the filter part of the inner filter drum 2 again. With the continuous rotation of the inner filter drum 2 driving the elastic outer filter drum 21, the filter part on the elastic outer filter drum 21 is intermittently misaligned with the filter part on the inner filter drum 2, and the solvent is intermittently released. During this period, the plant residues blocking the filter part are subjected to a reduced pressure difference and flow driving force under the centrifugal force due to the continuous operation of the blocking plate 32, so that the deflected blocking plate 32 automatically scrapes and pushes the plant residues blocking the filter part on the inner wall of the inner filter drum 2 for reliable cleaning, thereby avoiding the plant residues being deeply pressed into the filter holes of the filter part under the driving of the pressure difference and flow driving force, affecting the release effect, and ensuring the smoothness of the elastic outer filter drum 21 during the release of the solvent.

[0047] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pesticide extraction device for the production of isoxazoline insecticides, comprising an extraction tank (1), characterized in that, The extraction tank (1) left wall fixed plug-in has liquid discharge pipe (11), the extraction tank (1) top movable plug-in has sealing element, the extraction tank (1) middle part rotationally connected with the top opening inner filter drum (2), the outer periphery of the inner filter drum (2) is slidably connected with the elastic outer filter drum (21), the elastic outer filter drum (21) and the extraction tank (1) between be provided with the swing control assembly of adjusting elastic outer filter drum (21) up and down movement, the elastic outer filter drum (21) and the filter part of the inner filter drum (2) are up and down misregistration; The middle part of the inner filter drum (2) is rotationally connected with two opposite connecting pipes (3) on both sides, the opposite side of the two connecting pipes (3) is fixedly connected with a stop plate (32), the middle part of the stop plate (32) is rotationally connected with a pressure tooth roller (34), the top of the stop plate (32) on both sides is fixedly connected with a gear ring (33) engaged with the opposite side pressure tooth roller (34), the gear ring (33) is movably connected through the opposite side stop plate (32), the middle part of the stop plate (32) is movably connected with a driven pressure roller (42), the middle part of the stop plate (32) is provided with an adjusting assembly for driving the driven pressure roller (42) to rotate up and down.

2. The pesticide extraction device for the production of isoxazoline insecticides according to claim 1, characterized in that The bottom of the inner filter drum (2) is fixedly connected with a telescopic cylinder (5), the output end of the telescopic cylinder (5) is fixedly connected with a guide rod (51) penetrating through the two connecting pipes (3), the top of the inner filter drum (2) is provided with a key cap slidably connected with the guide rod (51), the inner wall of the connecting pipe (3) on both sides is respectively provided with an arc groove (31) in opposite directions, the rear wall of the guide rod (51) has two pin protrusions (52) movably connected with the corresponding arc grooves (31).

3. The pesticide extraction device for the production of isoxazoline insecticides according to claim 2, characterized in that The adjusting assembly includes a sealing sleeve (4) fixedly connected to the middle part of the stop plate (32) on both sides, the sealing sleeve (4) is rotationally connected with a sealing ring (41) matched with the driven pressure roller (42), the driven pressure roller (42) is slidably connected between the two sealing rings (41), the middle part of the top sealing sleeve (4) is rotationally connected with a driven gear rod (44) meshed with the pressure tooth roller (34), the driven gear rod (44) is slidably connected inside the driven pressure roller (42).

4. The pesticide extraction device for the production of isoxazoline insecticides according to claim 3, characterized in that The driven pressure roller (42) is hollow and has a protrusion (43) on the inner wall, the middle part of the bottom sealing sleeve (4) is fixedly connected with a limiting rod (45), the limiting rod (45) is provided with a curved groove (46) in communication at the head and tail, and the protrusion (43) is movably connected with the curved groove (46).

5. The pesticide extraction device for the production of isoxazoline insecticides according to claim 4, characterized in that The stop plate (32) is movably sealed against the inner wall of the inner filter drum (2) and the outer wall of the adjacent connecting pipe (3), and the stop plate (32) is provided with a through groove matched with the pressure tooth roller (34), the driven pressure roller (42) and the gear ring (33).

6. The pesticide extraction device for the production of isoxazoline insecticides according to claim 5, characterized in that The sealing piece includes a sealing cover (12) movably inserted into the top of the extraction tank (1), the inner wall of the top of the extraction tank (1) is provided with a groove, the sealing cover (12) is provided with a sealing ring movably clamped with the groove, the bottom of the sealing cover (12) is rotatably connected with a sealing disc (13) matched with the opening of the top of the inner filter drum (2), the sealing disc (13) is provided with a tubular adjusting part penetrating through the sealing cover (12) in the middle, and the bottom of the sealing disc (13) can movably abut against the upper wall of the resisting plate (32).

7. The pesticide extraction device for the production of isoxazoline insecticides according to claim 6, characterized in that The right wall of the extraction tank (1) is fixedly connected with a motor frame, the bottom of the motor frame is provided with a driving motor, the output end of the driving motor is located in the interior of the motor frame, and a transmission belt is movably connected between the driving motor and the inner filter drum (2), and the right wall of the extraction tank (1) is provided with a through groove corresponding to the transmission belt.

8. The pesticide extraction device for the production of isoxazoline insecticides according to claim 7, characterized in that The swing control assembly includes an electromagnetic ring (14) fixedly connected to the upper wall of the inner cavity of the extraction tank (1), the top of the elastic outer filter drum (21) is fixedly connected with a magnetic ring (22) repulsive to the electrified electromagnetic ring (14), the top of the elastic outer filter drum (21) is fixedly connected with a sliding column (23) on the outer wall of each of the front and rear sides, the elastic outer filter drum (21) is elastically connected to the key groove upper wall of the outer wall of the inner filter drum (2) through a key protrusion, the inner wall of the extraction tank (1) is provided with a partition plate movably abutting against the outer wall of the elastic outer filter drum (21), the upper surface of the partition plate is fixedly connected with a top block (15) on each of the left and right sides, and the front and rear sides of the top block (15) are provided with a slope surface corresponding to the sliding column (23).

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