Pesticide extraction device for isoxazoline insecticide production

Abstract

The invention relates to the technical field of pesticide extraction, and discloses a pesticide extraction device for production of isoxazoline insecticides, the pesticide extraction device comprises an extraction tank, a liquid discharge pipe is fixedly inserted into the left wall of the extraction tank, a sealing element is movably inserted into the top of the extraction tank, and an inner filter drum with a top opening is rotatably connected to the middle of the extraction tank; an elastic outer filter drum is clamped on the periphery of the inner filter drum in a sliding manner, a swing control assembly for adjusting the elastic outer filter drum to move up and down is arranged between the elastic outer filter drum and the extraction tank, and the elastic outer filter drum and the filter part of the inner filter drum are staggered up and down. The abutting plates on the two sides are controlled to be folded front and back, plant raw materials are crushed and output through the tooth pressing roller and the driven pressing roller moving up and down, and therefore the pesticide extraction efficiency is improved, the plant raw materials rapidly flow along with a solvent during extrusion, the dissolution and diffusivity of pesticide components is improved, excessive use of the solvent is avoided, and the cost is reduced. Smooth release is guaranteed, and the solvent drives pesticide components to be fully separated from plant residues.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide extraction, in particular to a pesticide extraction device for producing isoxazoline insecticides. Background Art

[0002] Currently, the production of isoxazoline insecticides relies on organic synthesis. Core raw materials include chemical reagents such as nitriles, ketones, amines, and halogenated hydrocarbons. Molecular structures with insecticidal activity are constructed through multi-step reactions. In actual production, plant-derived toxins can be added to isoxazoline insecticides. This addition of plant-derived toxins can combine the advantages of both, improving insecticidal efficacy, enhancing safety, or broadening the insecticide spectrum.

[0003] The invention patent with publication number CN119838265A discloses a pesticide extraction device for pesticide production, including a separation box with an end cover connected to the top of the separation box, and also includes: a separation net cylinder, both sides of the top of the separation net cylinder are fixedly connected to the bottom of the end cover through a connecting column; an extrusion assembly, the extrusion assembly is installed on one side of the bottom of the end cover, and the two ends of the extrusion assembly are respectively arranged at the two ends of the separation net cylinder, and the extrusion assembly is used to repeatedly extrude the raw materials in the separation net cylinder; the stirring assembly, the stirring assembly is installed at the bottom of the inner cavity of the separation box, and the stirring assembly is used to stir the solvent.

[0004] When the pesticide extraction device for pesticide production in the above-mentioned patent is in use, the extrusion component is used to reciprocately 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 on both sides gather toward the middle when under pressure, the plant raw materials in the middle are densely packed, forming a certain obstruction, and the middle area cannot be directly and fully acted upon by the extrusion component, which is not conducive to the release of pesticide components. It takes multiple times to completely release the pesticide components as much as possible, resulting in reduced extraction efficiency; when in use, the solvent needs to be fully filled into the separation box and higher than the separation net cylinder, which results in a large amount of solvent used, a reduced concentration of pesticide components dispersed in the solvent, a reduced extraction driving force, and thus a reduced extraction efficiency, which easily increases the burden of subsequent processing; when the extrusion component is extruded from both ends, the pressure is always concentrated, and the plant residue is easily pressed into the filter pores to cause blockage, and the subsequent release of the solvent relies on gravity, the release speed is slow, and the solvent and pesticide components in the plant residue are easily left. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of low extraction efficiency, excessive solvent usage, slow release rate and easy residue when using pesticide extraction devices in general pesticide production. The present invention provides a pesticide extraction device for the production of isoxazoline insecticides.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A pesticide extraction device for the production of isoxazoline pesticides, including an extraction tank. A liquid discharge pipe is fixedly inserted into the left wall of the extraction tank. A seal is movably inserted into the top of the extraction tank. An inner filter drum with an open top is rotatably connected to the middle of the extraction tank. An elastic outer filter drum is slidably clamped around the inner filter drum. A swing control assembly for adjusting the up and down movement of the elastic outer filter drum is arranged between the elastic outer filter drum and the extraction tank. The filtering parts of the elastic outer filter drum and the inner filter drum are vertically offset. Two opposite conduits are respectively rotatably connected to the upper and lower sides of the middle of the inner filter drum. On the opposite sides of the two conduits, a pressing plate is fixedly connected. A pressing tooth roller is rotatably connected to the middle of the pressing plate. Tooth rings meshing with the pressing tooth rollers on the opposite sides are fixedly connected to the tops of the left and right pressing plates. The tooth rings movably pass through the pressing plates on the opposite sides. A driven pressing roller is movably connected to the middle of the pressing plate. An adjusting assembly for driving the driven pressing roller to rotate up and down is arranged in the middle of the pressing plate.

[0007] Furthermore, a telescopic cylinder is fixedly installed at the bottom of the inner filter drum. The output end of the telescopic cylinder is fixedly connected to a guide rod passing through the two conduits. A key cap slidably clamped with the guide rod is arranged at the top of the inner filter drum. Arc grooves with opposite directions are respectively opened on the inner walls of the upper and lower conduits. Two pin protrusions that are movably clamped with the corresponding arc grooves are arranged on the rear wall of the guide rod.

[0008] Furthermore, the adjusting assembly includes sealing sleeves fixedly connected to the upper and lower sides of the middle of the pressing plate. Sealing rings adapted to the driven pressing roller are rotatably connected to the ports of the sealing sleeves. The driven pressing roller is slidably clamped between the upper and lower sealing rings. A driven tooth rod meshing with the pressing tooth roller is rotatably connected to the middle of the upper sealing sleeve. The driven tooth rod is slidably clamped inside the driven pressing roller.

[0009] Furthermore, the inside of the driven pressing roller is hollow and the inner wall has protrusions. A limiting rod is fixedly connected to the middle of the lower sealing sleeve. A curved groove with a head and a tail connected is opened on the limiting rod. The protrusions are movably clamped with the curved groove.

[0010] Furthermore, the pressing plates are respectively movably and sealingly abutted against the inner wall of the inner filter drum and the outer wall of the adjacent conduit. Through grooves adapted to the pressing tooth roller, the driven pressing roller and the tooth ring are opened on the pressing plates.

[0011] Furthermore, the seal includes a sealing cover movably inserted into the top of the extraction tank. A groove is provided on the inner wall of the top of the extraction tank. A sealing ring movably clamped with the groove is arranged around the sealing cover. A sealing disc adapted to the open top of the inner filter drum is rotatably connected to the bottom of the sealing cover. A tubular adjusting part passing through the sealing cover is arranged in the middle of the sealing disc. The bottom of the sealing disc can movably abut against the upper wall of the pressing plate.

[0012] Further, a motor mount is fixedly connected to the right wall of the extraction tank. A driving motor is installed at the bottom of the motor mount. The output end of the driving motor is inside the motor mount, and a transmission belt is movably connected between the output end and the inner filter drum. The right wall of the extraction tank has a through groove corresponding to the transmission belt.

[0013] Further, the swing control assembly includes an electromagnetic ring fixedly connected to the upper wall of the inner cavity of the extraction tank. A magnetic ring capable of repelling the energized electromagnetic ring is fixedly connected to the top of the elastic outer filter drum. Slide columns are fixedly connected to the outer walls on the front and rear sides of the top of the elastic outer filter drum. The elastic outer filter drum is elastically connected to the upper wall of the key groove on the outer wall of the inner filter drum through a key convex. The inner wall of the extraction tank has a partition plate that movably abuts against the outer wall of the elastic outer filter drum. Top blocks are fixedly connected to the left and right sides of the upper surface of the partition plate. Sloping surfaces corresponding to the slide columns are provided on the front and rear sides of the top blocks.

[0014] The beneficial effects of the present invention are as follows: 1. After the elastic outer filter drum misaligns and seals the inner filter drum in the present invention, by controlling the front and rear closing of the two pressure plates on both sides respectively, the plant raw materials in the front and rear chambers are squeezed. During this period, the pressing tooth rollers on the two pressure plates cooperate with the driven pressing roller to automatically bite and crush the plant raw materials on the pressed side and output them to the other side. The adjusting assembly drives the driven pressing roller to move up and down to tear the plant raw materials, so as to fully crush the plant raw materials after one extrusion to promote the release of pesticide components, improving the pesticide extraction efficiency. In addition, by using the relatively sealed design of the front and rear chambers, the plant raw materials flow rapidly with the solvent under the action of pressure during extrusion, improving the crushing rate passing through the pressure plates and the dissolution and diffusion rate of pesticide components.

[0015] 2. In the present invention, the elastic outer filter drum misaligns and seals the inner filter drum. During pesticide extraction, the solvent and the plant raw materials coexist in the extrusion extraction cavity in the inner filter drum, avoiding excessive use of the solvent.

[0016] 3. After the pesticide components are fully dissolved and diffused into the solvent in the present invention, the inner filter drum is controlled to drive 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 as to intermittently release the solvent. Then, by controlling the continuous deflection of the pressure plates, the plant residues on the inner wall of the inner filter drum are reliably scraped and pushed to avoid blockage of the filtering part by the plant residues under the drive of the pressure difference and the flow driving force, ensuring the smoothness of the solvent release, and using centrifugal release to ensure the full separation of the solvent and the pesticide components from the plant residues. Description of the Drawings

[0017] Figure 1 is a three-dimensional structure diagram of the extraction device of the present invention; Figure 2 is a three-dimensional sectional view of the extraction tank part of the extraction device of the present invention; Figure 3Stereoscopic sectional view of the extraction tank and the inner filter drum of the extraction device of the present invention Figure 1 ; Figure 4 Stereoscopic sectional view of the extraction tank and the inner filter drum of the extraction device of the present invention Figure 2 ; Figure 5 Exploded stereoscopic sectional view of the sealing cover and the inner filter drum of the extraction device of the present invention; Figure 6 Stereoscopic sectional view of the inner filter drum and the bottom plate of the extraction device of the present invention; Figure 7 Exploded stereoscopic sectional view of the bottom plate and the driven pressure roller of the extraction device of the present invention Figure 1 ; Figure 8 Exploded stereoscopic sectional view of the bottom plate and the driven pressure roller of the extraction device of the present invention Figure 2 ; Figure 9 Stereoscopic structure diagram of the bottom plate and the gear ring of the extraction device of the present invention.

[0018] Reference numerals: 1, extraction tank; 11, liquid discharge pipe; 12, sealing cover; 13, sealing disc; 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, bottom plate; 33, gear ring; 34, pressure tooth roller; 4, sealing sleeve; 41, sealing ring; 42, driven pressure roller; 43, convex block; 44, driven tooth rod; 45, limiting rod; 46, curved groove; 5, telescopic cylinder; 51, guide rod; 52, pin projection. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, 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.

[0020] Embodiment 1, as Figures 1-9 shown, a pesticide extraction device for the production of isoxazoline pesticides includes an extraction tank 1. A liquid discharge pipe 11 is fixedly inserted into the left wall of the extraction tank 1. A sealing member is movably inserted into the top of the extraction tank 1. An inner filter drum 2 with an open top is rotatably connected to the middle of the extraction tank 1. An elastic outer filter drum 21 is slidably clamped around the inner filter drum 2. A swing control assembly for adjusting the up and down movement of the elastic outer filter drum 21 is provided between the elastic outer filter drum 21 and the extraction tank 1. The filtering parts of the elastic outer filter drum 21 and the inner filter drum 2 are vertically offset; On the upper and lower sides of the middle part of the inner filter drum 2, two relatively connected conduits 3 are rotatably connected respectively. On the opposite sides of the two conduits 3, a retaining plate 32 is fixedly connected. In the middle of the retaining plate 32, a pressing tooth roller 34 is rotatably connected. On the tops of the left and right retaining plates 32, a gear ring 33 meshing with the pressing tooth roller 34 on the opposite side is fixedly connected. The two gear rings 33 are arranged vertically. The gear ring 33 movably passes through the retaining plate 32 on the opposite side. In the middle of the retaining plate 32, a driven pressing roller 42 is movably connected. An adjusting assembly for driving the driven pressing roller 42 to rotate up and down is arranged in the middle of the retaining plate 32.

[0021] A motor bracket is fixedly connected to the right wall of the extraction tank 1. A driving motor is installed at the bottom of the motor bracket. The output end of the driving motor is inside the motor bracket, and a transmission belt is movably connected between the output end and the inner filter drum 2. The right wall of the extraction tank 1 has a through groove corresponding to the transmission belt.

[0022] Before pesticide extraction, open the seal and put the plant raw materials and the solvent into the inner filter drum 2 together, and evenly distribute them before and after the bottom plate 32. Then reset the seal. Since the elastic outer filter drum 21 seals the inner filter drum 2 out of position, the solvent will not leak, and the solvent and the plant raw materials coexist in the extrusion extraction cavity in the inner filter drum 2, avoiding excessive use of the solvent. When performing pesticide extraction, control the two bottom plates 32 to close inwards and outwards respectively, so as to extrude the plant raw materials in the front and rear chambers. After the plant raw materials are crushed under pressure, the internal pesticide components are automatically released into the solvent. During this period, the pressing tooth rollers 34 on the two bottom plates 32 cooperate with the driven pressing rollers 42 to automatically bite and crush the plant raw materials on the pressed side and output them to the other side. The adjusting component drives the driven pressing roller 42 to move up and down, so as to fully crush the plant raw materials after one extrusion to promote the release of pesticide components and improve the pesticide extraction efficiency. Since the front and rear chambers are relatively sealed during extrusion, the plant raw materials flow rapidly with the solvent under the action of pressure during extrusion, so that the plant raw materials quickly pass between the pressing tooth rollers 34 and the driven pressing rollers 42, and the dissolution and diffusion rate of the pesticide components are improved. When the pesticide components are fully dissolved and diffused into the solvent, control the two bottom plates 32 to keep closing inwards and outwards reciprocally, control the liquid discharge pipe 11 to open for liquid discharge, and control the motor to drive the inner filter drum 2 to rotate rapidly through the transmission belt. The inner filter drum 2 thus drives the elastic outer filter drum 21 to centrifuge the solution. The swing control component automatically drives the elastic outer filter drum 21 to move up and down. When the filtering part on the elastic outer filter drum 21 is docked with the filtering part on the inner filter drum 2, the solvent is automatically thrown out under the action of centrifugal force. When the filtering part on the elastic outer filter drum 21 is out of position with the filtering part on the inner filter drum 2, the solvent is forced to stop releasing. The pressure difference and flow driving force received by the plant residues blocking the filtering part are reduced, so that the deflected bottom plate 32 can reliably scrape and clean the plant residues blocking the inner wall of the inner filter drum 2, avoiding the plant residues being deeply pressed into the filter holes of the filtering part by the bottom plate 32 under the drive of the pressure difference and flow driving force, ensuring the smoothness of the elastic outer filter drum 21 when releasing the solvent. Since centrifugal release is adopted, it also ensures that the solvent drives the pesticide components to be fully separated from the plant residues, avoiding residues.

[0023] Embodiment 2, on the basis of the above embodiment, a telescopic cylinder 5 is fixedly installed at the bottom of the inner filter drum 2. The output end of the telescopic cylinder 5 is fixedly connected with a guide rod 51 passing through the two conduits 3. A key cap that is slidably clamped with the guide rod 51 is arranged at the top of the inner filter drum 2. Arc grooves 31 with opposite directions are respectively opened on the inner walls of the upper and lower conduits 3. Two pin protrusions 52 that are movably clamped with the corresponding arc grooves 31 are provided on the rear wall of the guide rod 51.

[0024] By controlling the reciprocating telescopic movement of the telescopic cylinder 5, the guide rod 51 is driven to move up and down reciprocally. The guide rod 51 drives the pin protrusion 52 to extrude the upper and lower arc grooves 31, thereby driving the upper and lower two conduits 3 to make the two abutting plates 32 deflect and fold in the front and back synchronously, so as to extrude the plant raw materials in the front and back two chambers. Since the telescopic cylinder 5 is installed at the bottom of the inner filter drum 2, when controlling the deflection and folding of the two abutting plates 32, it is not affected by the rotation of the inner filter drum 2, which is convenient for automatically cleaning the filtered part of the inner wall of the inner filter drum 2 by using the abutting plates 32 when the inner filter drum 2 rotates subsequently.

[0025] Embodiment 3, on the basis of the above embodiment, the adjusting assembly includes sealing sleeves 4 fixedly connected to the upper and lower sides of the middle part of the abutting plate 32. A sealing ring 41 adapted to the driven pressure roller 42 is rotatably connected to the port of the sealing sleeve 4. The driven pressure roller 42 is slidably clamped between the upper and lower two sealing rings 41. A driven tooth bar 44 meshingly connected with the pressing tooth roller 34 is rotatably connected to the middle part of the top sealing sleeve 4. The driven tooth bar 44 is slidably clamped inside the driven pressure roller 42.

[0026] The inside of the driven pressure roller 42 is hollow and the inner wall has protrusions 43. A limiting rod 45 is fixedly connected to the middle part of the bottom sealing sleeve 4. A curved groove 46 communicating end to end is formed on the limiting rod 45. The protrusion 43 is movably clamped with the curved groove 46.

[0027] When the two abutting plates 32 on both sides fold forward or backward, the toothed ring 33 on one side automatically drives the pressing tooth roller 34 on the other side to rotate. The pressing tooth roller 34 thereby drives the driven pressure roller 42 to rotate through the driven tooth bar 44. Since the two abutting plates 32 on both sides deflect simultaneously, the toothed ring 33 and the pressing tooth roller 34 are both driven to deflect. The pressing tooth roller 34 thereby drives the driven pressure roller 42 to rotate rapidly, and cooperates with the folding of the two abutting plates 32 on both sides to extrude the plant raw materials. The pressing tooth roller 34 and the driven pressure roller 42 thereby quickly bite and crush the plant raw materials on the compressed side and output them to the other side; When the driven tooth bar 44 rotates, the protrusion 43 on the inner wall presses the curved groove 46. Since the limiting rod 45 is fixed, under the guidance of the curved groove 46, the protrusion 43 drives the driven pressure roller 42 to move up and down reciprocally, forming a dynamic bite with the pressing tooth roller 34. Thus, when biting the plant raw materials, the plant raw materials are pulled up and down, prompting the plant raw materials to tear, so as to fully crush the plant raw materials after one extrusion to promote the release of pesticide components and improve the pesticide extraction efficiency. When the driven pressure roller 42 moves up and down reciprocally and rotates, the sealing ring 41 automatically cooperates to seal the upper and lower sealing sleeves 4, thereby preventing the plant raw materials from passing through the area outside the biting gap between the pressing tooth roller 34 and the driven pressure roller 42, resulting in incomplete extrusion and crushing of any chamber, and further improving the pesticide extraction efficiency.

[0028] Embodiment 4. On the basis of the above embodiment, the bottom plate 32 is movably and sealingly abutted against the inner wall of the inner filter drum 2 and the outer wall of the adjacent conduit 3 respectively. A through groove adapted to the pressing tooth roller 34, the driven pressing roller 42 and the gear ring 33 is formed on the bottom plate 32.

[0029] With this design, when the bottom plate 32 extrudes the plant raw materials, together with the sealing member, a relatively sealed state is formed for the front and rear extrusion chambers. Under the action of pressure, the plant raw materials flow rapidly along with the solvent, so that the plant raw materials can quickly pass between the pressing tooth roller 34 and the driven pressing roller 42, improving the dissolution and diffusion rate of the pesticide components.

[0030] Embodiment 5. On the basis of the above embodiment, the sealing member 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. A sealing ring that is movably clamped with the groove is arranged on the periphery of the sealing cover 12. A sealing disc 13 adapted to the top opening of the inner filter drum 2 is rotatably connected to the bottom of the sealing cover 12. A tubular adjusting part penetrating the sealing cover 12 is arranged in the middle of the sealing disc 13. The bottom of the sealing disc 13 can be movably abutted against the upper wall of the bottom plate 32.

[0031] The sealing disc 13 can seal the top of the front and rear two extrusion chambers, thereby strengthening the sealing performance of the extrusion chambers and improving the extrusion effect on the plant raw materials. By using the tubular adjusting part passing through the sealing cover 12, it is convenient to control the alignment of the sealing disc 13 with the top opening of the inner filter drum 2 during the installation of the sealing member, ensuring quick installation in place. Subsequently, when the inner filter drum 2 rotates, the sealing disc 13 can perform rotational sealing on the inner filter drum 2.

[0032] Embodiment 6. On the basis of 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 capable of repelling the energized electromagnetic ring 14 is fixedly connected to the top of the elastic outer filter drum 21. Slide columns 23 are fixedly connected to the outer walls of the front and rear sides of the top of the elastic outer filter drum 21. The elastic outer filter drum 21 is elastically connected to the upper wall of the key groove on the outer wall of the inner filter drum 2 through a key projection. The inner wall of the extraction tank 1 has a partition plate that is movably abutted against the outer wall of the elastic outer filter drum 21. Top blocks 15 are fixedly connected to the left and right sides of the upper surface of the partition plate. Slope surfaces corresponding to the slide columns 23 are provided on the front and rear sides of the top blocks 15.

[0033] When the inner filter drum 2 drives the elastic outer filter drum 21 to rotate, the electromagnetic ring 14 is controlled to be energized to repel the magnetic ring 22 to move downward. Thus, the elastic outer filter drum 21, which is initially misaligned with the filtering part of the inner filter drum 2, is driven by the magnetic ring 22 to move downward, and the filtering part of the elastic outer filter drum 21 is docked with the filtering part of the inner filter drum 2. The solvent is automatically thrown out through the inner filter drum 2 and the elastic outer filter drum 21 under the action of centrifugal force respectively. When the sliding column 23 steadily passes over the top block 15 along the slope, the elastic outer filter drum 21 is automatically lifted, so that its filtering part is misaligned with the filtering part of the inner filter drum 2 again. As the inner filter drum 2 drives the elastic outer filter drum 21 to rotate continuously, the filtering part on the elastic outer filter drum 21 and the filtering part on the inner filter drum 2 are intermittently misaligned, and the solvent is intermittently released. During this period, since the abutting plate 32 still operates continuously, when the solvent is forced to stop releasing, the pressure difference and flow driving force received by the plant residues blocking the filtering part are reduced under the centrifugal action. Thus, it is convenient for the deflected abutting plate 32 to automatically scrape and clean the plant residues blocking the filtering part on the inner wall of the inner filter drum 2 reliably, avoiding the plant residues being deeply pressed into the filter holes of the filtering part under the drive of the pressure difference and flow driving force and affecting the release effect, so as to ensure the smoothness when the elastic outer filter drum 21 releases the solvent.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these 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 pesticides, comprising an extraction tank (1), characterized in that, A liquid discharge pipe (11) is fixedly inserted into the left wall of the extraction tank (1). A seal is movably inserted into the top of the extraction tank (1). An inner filter drum (2) with an open top is rotatably connected to the middle of the extraction tank (1). An elastic outer filter drum (21) is slidably clamped around the inner filter drum (2). A swing control assembly for adjusting the up and down movement of the elastic outer filter drum (21) is arranged between the elastic outer filter drum (21) and the extraction tank (1). The filtering parts of the elastic outer filter drum (21) and the inner filter drum (2) are vertically offset. Two conduits (3) that are oppositely connected are respectively rotatably connected to the upper and lower sides of the middle of the inner filter drum (2). A pressing plate (32) is fixedly connected to each of the opposite sides of the two conduits (3). A pressing tooth roller (34) is rotatably connected to the middle of the pressing plate (32). A gear ring (33) that meshes with the pressing tooth roller (34) on the opposite side is fixedly connected to the top of each of the left and right pressing plates (32). The gear ring (33) movably passes through the pressing plate (32) on the opposite side. A driven pressing roller (42) is movably connected to the middle of the pressing plate (32). An adjusting assembly for driving the driven pressing roller (42) to rotate up and down is arranged in the middle of the pressing plate (32).

2. The pesticide extraction device for the production of isoxazoline pesticides according to claim 1, wherein, A telescopic cylinder (5) is fixedly installed at the bottom of the inner filter drum (2). A guide rod (51) that penetrates through the two conduits (3) is fixedly connected to the output end of the telescopic cylinder (5). A key cap that is slidably clamped with the guide rod (51) is arranged at the top of the inner filter drum (2). Arc grooves (31) with opposite directions are respectively opened on the inner walls of the upper and lower conduits (3). Two pin protrusions (52) that are movably clamped with the corresponding arc grooves (31) are arranged on the rear wall of the guide rod (51).

3. The pesticide extraction device for the production of isoxazoline pesticides according to claim 2, wherein, The adjusting assembly includes sealing sleeves (4) fixedly connected to the upper and lower sides of the middle of the pressing plate (32). A sealing ring (41) that is adapted to the driven pressing roller (42) is rotatably connected to the port of the sealing sleeve (4). The driven pressing roller (42) is slidably clamped between the upper and lower sealing rings (41). A driven tooth rod (44) that meshes with the pressing tooth roller (34) is rotatably connected to the middle of the upper sealing sleeve (4). The driven tooth rod (44) is slidably clamped inside the driven pressing roller (42).

4. A pesticide extraction device for the production of isoxazoline pesticides according to claim 3, characterized in that, The inside of the driven pressing roller (42) is hollow and the inner wall has protrusions (43). A limiting rod (45) is fixedly connected to the middle of the lower sealing sleeve (4). A curved groove (46) that is connected end to end is opened on the limiting rod (45). The protrusion (43) is movably clamped with the curved groove (46).

5. The pesticide extraction device for the production of isoxazoline pesticides according to claim 4, characterized in that, The pressing plates (32) are respectively movably and sealingly abutted against the inner wall of the inner filter drum (2) and the outer wall of the adjacent conduit (3). Through grooves that are adapted to the pressing tooth roller (34), the driven pressing roller (42) and the gear ring (33) are opened on the pressing plates (32).

6. The pesticide extraction device for the production of isoxazoline pesticides according to claim 5, characterized in that, The seal includes a seal 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. A sealing ring that is movably clamped with the groove is arranged on the periphery of the seal cover (12). A sealing disc (13) adapted to the top opening of the inner filter drum (2) is rotatably connected to the bottom of the seal cover (12). A tubular adjusting part penetrating through the seal cover (12) is arranged in the middle of the sealing disc (13). The bottom of the sealing disc (13) can movably abut against the upper wall of the abutting plate (32).

7. A pesticide extraction device for the production of isoxazoline pesticides according to claim 6, characterized in that, A motor bracket is fixedly connected to the right wall of the extraction tank (1). A driving motor is installed at the bottom of the motor bracket. The output end of the driving motor is inside the motor bracket, and a transmission belt is movably connected between the output end and the inner filter drum (2). The right wall of the extraction tank (1) has a through groove corresponding to the transmission belt.

8. A pesticide extraction device for the production of isoxazoline pesticides 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). A magnetic ring (22) capable of repelling the energized electromagnetic ring (14) is fixedly connected to the top of the elastic outer filter drum (21). Slide columns (23) are fixedly connected to the outer walls of the front and rear sides of the top of the elastic outer filter drum (21). The elastic outer filter drum (21) is elastically connected to the upper wall of the key groove on the outer wall of the inner filter drum (2) through a key protrusion. A partition plate that movably abuts against the outer wall of the elastic outer filter drum (21) is arranged on the inner wall of the extraction tank (1). Top blocks (15) are fixedly connected to the left and right sides of the upper surface of the partition plate. Slope surfaces corresponding to the slide columns (23) are arranged on the front and rear sides of the top block (15).

Images