Blending device for pesticide production

Abstract

The utility model discloses a blending device for pesticide production, which comprises a dissolving kettle, a discharge port is arranged at the bottom of the dissolving kettle, a valve is mounted at the discharge port, a support and a liquid storage container are fixed on the dissolving kettle, a central cavity, a raw material cavity and a blanking cavity are arranged in the liquid storage container, a lower-layer rotating sleeve is rotatably mounted in the central cavity, and a lower-layer rotating sleeve is mounted in the lower-layer rotating sleeve. Stirring pieces are mounted at the lower ends of the lower-layer rotating sleeves; a first linear actuator and an intercepting plate are fixed to the support, a lifting frame is installed at the output end of the first linear actuator, a rotating driving element is fixed to the lifting frame, the output end of the rotating driving element is in transmission connection with a rotating shaft, a rotating seat is rotationally installed on the rotating shaft, and a rotating frame is installed on the rotating seat through an elastic piece. An upper-layer rotating sleeve, a pipetting mechanism and an inserting sleeve are fixedly mounted on the rotating frame. The liquid raw materials in the raw material cavities are accurately extracted one by one and sequentially transferred into the dissolving kettle, and the raw materials are sequentially dissolved and then mixed, so that the blended pesticide concentration is accurate, and the pesticide effect is optimal.

Description

Technical Field

[0001] This utility model relates to the field of pesticide production technology, and in particular to a pesticide preparation device. Background Technology

[0002] In the production process of pesticides, such as water-soluble pesticides, raw materials such as water-soluble pesticide technicals, adjuvants, other functional additives and water are added to a dissolving kettle in a certain proportion. After filtration to remove insoluble substances, a clear and transparent liquid is obtained.

[0003] Traditional pesticide preparation methods typically rely on manual operation, which presents the following problems:

[0004] Inaccurate dosage control: Manual weighing or simple mechanical measurement is easily affected by factors such as operation error and insufficient equipment precision, which leads to deviations in pesticide ratio, failure to meet concentration standards, affecting efficacy and even causing phytotoxicity;

[0005] Incomplete dissolution: When pesticide raw materials are mixed, uneven stirring or insufficient dissolution time often results in the incomplete release of active ingredients, reducing utilization rate;

[0006] 3. Incorrect mixing order: Due to the significant differences in the physicochemical properties of different raw materials (such as acidity, alkalinity, and solubility), direct mixing may cause a reaction, affecting stability and efficacy. Therefore, raw materials usually need to be added and stirred in sequence, but manual operation is prone to errors in the feeding steps.

[0007] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0008] Therefore, it is necessary to provide a pesticide preparation device for addressing the aforementioned technical problems.

[0009] To achieve the above objectives, this utility model provides a pesticide preparation device, including a dissolving vessel with a discharge port at the bottom and a valve installed thereon. A support and a storage container are fixed to the dissolving vessel, with the storage container fixed to the top of the vessel. The top of the storage container is open, and the storage container contains a central cavity, a raw material cavity, and a discharge cavity. Multiple raw material cavities are provided, and the raw material and discharge cavities are located around the central cavity. A discharge port communicating with the dissolving vessel is located at the bottom of the discharge cavity. A lower rotating sleeve is rotatably installed inside the central cavity, with its lower end extending into the dissolving vessel and fitted with a stirring element. A first linear actuator and a baffle plate are fixedly installed on the support. A limit rod is fixed to the lower end of the baffle plate. A lifting frame is installed at the output end of the first linear actuator, and a rotary drive element is fixedly installed on the lifting frame. A rotating shaft is rotatably installed on the lifting frame. The output end of the rotary drive element is connected to the rotating shaft. A rotating seat is rotatably mounted on the rotating shaft. An elastic element is mounted on the upper end of the rotating seat. A rotating frame is mounted on the upper end of the elastic element. An upper rotating sleeve, a pipetting mechanism, and a plug-in sleeve are fixedly mounted on the rotating frame. An upper connecting key and a lower connecting key are fixed on the rotating shaft. The lower connecting key is keyed to the lower rotating sleeve. When the elastic element is in its natural state, the upper rotating sleeve is keyed to the upper connecting key. The rotary drive element can drive the rotating shaft to rotate a preset angle so that the pipetting mechanism rotates to the top of the feeding chamber or any raw material chamber. When the elastic element is in a compressed state and its length is less than a first length, the upper rotating sleeve separates from the upper connecting key. The plug-in sleeve is used to engage with the limiting plug rod. The intercepting plate is used to contact the plug-in sleeve to limit the rotating frame from rising synchronously with the rotating shaft, so that the elastic element can be compressed to a length less than the first length.

[0010] Preferably, the pipetting mechanism includes a second linear actuator, a pipette, a piston, and a piston rod. The second linear actuator and the pipette are fixedly connected to the rotating frame. The top of the pipette is open, and the bottom of the pipette has a suction port. The piston is slidably sealed inside the pipette, and the piston rod is fixedly connected to the piston. The output end of the second linear actuator is fixedly connected to the piston rod. The pipette can rotate to the top of the feeding chamber or any raw material chamber under the drive of the rotary drive element.

[0011] Preferably, a distance sensor is installed on the rotating frame. The distance sensor can rotate to be directly above the feeding chamber or any raw material chamber under the drive of the rotation driving element. The distance sensor detects the liquid level in the raw material chamber by detecting the distance from the liquid surface in the raw material chamber.

[0012] Preferably, both the upper and lower connecting keys are flat keys, with the upper rotating sleeve having an upper keyway for key connection to the upper connecting key, and the lower rotating sleeve having a lower keyway for key connection to the lower connecting key.

[0013] Preferably, a fixed seat is fixedly installed on the rotating shaft, a first bearing is fixedly installed on the fixed seat, a rotating seat is fitted on the rotating shaft, the rotating seat is rotatably connected to the fixed seat through the first bearing, and an elastic element is installed on the rotating seat.

[0014] Preferably, the top of the plug sleeve has an inner chamfer.

[0015] Preferably, the bottom of the lower rotating sleeve has a closed structure.

[0016] Preferably, the liquid storage container is hinged with two symmetrically arranged semi-circular caps. The free end of the semi-circular cap has a semi-circular notch. A bottom sealing gasket is fixed on one end face of the semi-circular cap used to close the liquid storage container, and a handle is fixed on the other end face of the semi-circular cap. A side sealing gasket is fixed on the free end of the semi-circular cap. When the semi-circular cap closes the liquid storage container, the two side sealing gaskets are sealed and abut against each other and sealed and abut against the rotating shaft, and the bottom sealing gasket is sealed and abut against the top of the liquid storage container.

[0017] Preferably, the output end of the rotary drive element is connected to the rotating shaft via a coupling.

[0018] Preferably, a filter screen is installed at the lower end of the valve.

[0019] The beneficial effects of this technical solution are: it allows for precise extraction of liquid raw materials from each raw material chamber and sequential transfer to the dissolving vessel, where each raw material is dissolved and then mixed. The correct order of addition improves the efficiency of formulation, ensures product quality and stability, and ensures accurate pesticide concentration and optimal pesticide effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a pesticide preparation apparatus according to an embodiment;

[0021] Figure 2 for Figure 1 A sectional view along line AA.

[0022] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0023] Figure 4 for Figure 1 A magnified view of a section at point C;

[0024] Figure 5 for Figure 1 A magnified view of a section at point D;

[0025] Figure 6 This is a partial side view of a pesticide preparation apparatus according to an embodiment;

[0026] Figure 7 for Figure 6 A diagram showing the state of the liquid storage container when it is sealed with a semi-circular cap;

[0027] Figure 8 for Figure 7 Sectional view along the FF line;

[0028] Figure 9 The operating state of a pesticide production preparation apparatus according to an embodiment. Figure 1 (The pipetting mechanism is located inside the feed chamber);

[0029] Figure 10 The operating state of a pesticide production preparation apparatus according to an embodiment. Figure 2 (The upper rotating sleeve is separated from the upper connecting key).

[0030] Figure 11 for Figure 10 A magnified view of a section at point E in the middle;

[0031] In the diagram, 1. Dissolving vessel; 2. Discharge port; 3. Valve; 4. Support; 5. Storage container; 6. Central cavity; 7. Raw material cavity; 8. Discharge cavity; 9. Discharge port; 10. Lower rotating sleeve; 11. Stirring component; 12. First linear actuator; 13. Interceptor plate; 14. Limiting rod; 15. Lifting frame; 16. Rotary drive element; 17. Rotating shaft; 18. Rotating seat; 19. Elastic element; 20. Rotating frame; 21. Upper rotating sleeve. 21. Sleeve; 22. Pipetting mechanism; 23. Insertion sleeve; 24. Upper key drive unit; 25. Lower key drive unit; 26. Second linear actuator; 27. Pipette; 28. Piston; 29. ​​Piston rod; 30. Distance sensor; 31. Fixing base; 32. First bearing; 33. Inner chamfer; 34. Semi-circular cap; 35. Semi-circular notch; 36. Bottom sealing gasket; 37. Side sealing gasket; 38. Coupling; 39. Filter screen. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] Please see Figures 1 to 11This application provides a pesticide preparation device, including a dissolving kettle 1, a discharge port 2 at the bottom of the dissolving kettle 1, a valve 3 installed at the discharge port 2, a support 4 and a liquid storage container 5 fixed on the dissolving kettle 1, the liquid storage container 5 fixed at the top of the dissolving kettle 1, the top of the liquid storage container 5 is open, the liquid storage container 5 is provided with a central cavity 6, a raw material cavity 7 and a discharge cavity 8, there are multiple raw material cavities 7, the raw material cavities 7 and the discharge cavity 8 are located around the central cavity 6, the bottom of the discharge cavity 8 is provided with a discharge port 9 communicating with the dissolving kettle 1, each raw material cavity 7 is used to store the active ingredient, adjuvants, other functional additives and water respectively, the number of raw material cavities 7 can be set according to the type of raw material; a lower rotating sleeve 10 is rotatably installed in the central cavity 6 through a second bearing, the lower end of the lower rotating sleeve 10 extends into the dissolving kettle 1 and is equipped with a stirring element 11;

[0034] A first linear actuator 12 and an interceptor plate 13 are fixedly installed on the bracket 4. A limit rod 14 is fixedly installed at the lower end of the interceptor plate 13. A lifting frame 15 is fixedly installed at the output end of the first linear actuator 12. A rotary drive element 16 is fixedly installed on the lifting frame 15. A rotating shaft 17 is rotatably installed on the lifting frame 15 through a third bearing. The rotary drive element 16 is selected as a stepper motor or a servo motor. The output end of the rotary drive element 16 is connected to the rotating shaft 17 through a coupling 38, which can drive the rotating shaft 17 to rotate precisely at a preset angle.

[0035] A rotating seat 18 is rotatably mounted on the rotating shaft 17. An elastic element 19, which is a compression spring, is mounted on the upper end of the rotating seat 18. The elastic element 19 is fitted onto the rotating shaft 17. A rotating frame 20 is mounted on the upper end of the elastic element 19. An upper rotating sleeve 21, a pipetting mechanism 22, and a plug-in sleeve 23 are fixedly mounted on the rotating frame 20. The upper rotating sleeve 21 is fitted onto the rotating shaft 17. An upper connecting key 24 and a lower connecting key 25 are fixed on the rotating shaft 17. The lower connecting key 25 is keyed to the lower rotating sleeve 10.

[0036] When the elastic element 19 is in its natural state, the upper rotating sleeve 21 is connected to the upper connecting key 24. The rotational drive element 16 can drive the rotating shaft 17 to rotate by a preset angle so that the pipetting mechanism 22 rotates to be directly above the feeding chamber 8 or any raw material chamber 7. The rotational drive element 16 can drive the rotating shaft 17 to rotate in both directions to prevent the pipetting mechanism 22 from rotating more than 360 degrees. When the elastic element 19 is in a compressed state and its length is less than the first length, the upper rotating sleeve 21 is separated from the upper connecting key 24.

[0037] The plug sleeve 23 is used to plug into the limiting plug rod 14, and the intercepting plate 13 is used to contact the plug sleeve 23 to restrict the rotating frame 20 from rising synchronously with the rotating shaft 17, so that the elastic member 19 can be compressed to a length less than the first length.

[0038] The first linear actuator 12 is an electric cylinder, or a servo cylinder or servo hydraulic cylinder, which can drive the rotating shaft 17 to rise and fall to a preset height, so that the pipetting mechanism 22 enters the liquid storage container 5 or rises to the liquid storage container 5 to perform a pipetting operation; or drive the rotating shaft 17 to rise so that the interceptor plate 13 abuts against the plug sleeve 23, so that the elastic element 19 is compressed to a length less than the first length, and the upper rotating sleeve 21 is separated from the upper connecting key 24. In this way, when the rotating shaft 17 rotates, it will not drive the pipetting mechanism 22 to rotate, but only drive the lower rotating sleeve 10 and the stirring element 11 to rotate, so as to stir the raw materials.

[0039] The pipetting mechanism 22 includes a second linear actuator 26, a pipette 27, a piston 28, and a piston rod 29. The second linear actuator 26 and the pipette 27 are fixedly connected to the rotating frame 20. The top of the pipette 27 is open, and the bottom of the pipette 27 has a suction port. The piston 28 is slidably and sealed inside the pipette 27, and the piston rod 29 is fixedly connected to the piston 28. The output end of the second linear actuator 26 is fixedly connected to the piston rod 29. The pipette 27 can rotate to the position directly above the feeding chamber 8 or any of the raw material chambers 7 under the drive of the rotary drive element 16. The second linear actuator 26 is an electric cylinder, or a servo cylinder or servo hydraulic cylinder, which can drive the piston 28 to move precisely inside the pipette 27, thereby accurately extracting a preset volume of liquid raw material.

[0040] In this embodiment, the rotary drive element 16 drives the rotating shaft 17 to rotate by a preset angle, causing the pipette 27 to rotate directly above the first raw material chamber 7 to be added. The first linear actuator 12 then drives the lifting frame 15, the rotating shaft 17, and the pipetting mechanism 22 to descend. Figure 9 As shown, the pipette 27 enters the feeding chamber 8 or the raw material chamber 7; the piston 28 is driven to rise to a preset height by the second linear actuator 26, and the piston 28 moves precisely in the pipette 27, thereby accurately extracting a preset volume of liquid raw material from the raw material chamber 7.

[0041] Subsequently, as Figure 1 As shown, the first linear actuator 12 drives the lifting frame 15, rotating shaft 17, and pipetting mechanism 22 to rise, causing the pipette 27 to rise above the liquid storage container 5; the rotary drive element 16 drives the rotating shaft 17 to rotate by a preset angle, causing the pipette 27 to rotate directly above the discharge port 9 of the discharge chamber 8; the second linear actuator 26 drives the piston 28 to descend inside the pipette 27, thereby accurately pressing the liquid raw material in the pipette 27 out of the discharge port 9 and the dissolving vessel 1;

[0042] When it is necessary to stir the raw materials one by one, the rotary drive element 16 drives the rotating shaft 17 to rotate at a preset angle, so that the plug sleeve 23 rotates to directly below the limit plug rod 14, and the first linear actuator 12 drives the lifting frame 15, rotating shaft 17, etc. to rise. Figure 10As shown, the limiting rod 14 is inserted into the plug sleeve 23, and the intercepting plate 13 abuts against the plug sleeve 23 to restrict the rotation of the rotating frame 20. The rotating shaft 17 will continue to rise, and the elastic element 19 will be compressed until the elastic element 19 is compressed to a length less than the first length. At this time, the upper rotating sleeve 21 is separated from the upper connecting key 24. In this way, when the rotating shaft 17 rotates, it will not drive the pipetting mechanism 22 to rotate, but only drive the lower rotating sleeve 10 and the stirring element 11 to rotate, so as to stir the raw materials.

[0043] Subsequently, the above steps can be repeated to accurately extract the liquid raw materials in each raw material chamber 7 and transfer them to the feeding chamber 8 and the dissolving vessel 1, and stir again until all the raw materials are added and stirred; open the valve and the pesticide in the dissolving vessel can be discharged from the outlet.

[0044] By precisely controlling the dosage of different raw materials, dissolving them sequentially before mixing, and following a reasonable order of addition, we can improve mixing efficiency, ensure product quality and stability, and achieve accurate pesticide concentrations and optimal pesticide effects.

[0045] In a preferred embodiment, to facilitate accurate immersion of the suction port at the bottom of the pipette 27 into the liquid raw material, and to avoid excessive immersion of the pipette 27 in the liquid raw material, which could lead to excessive material adhering to the outer wall of the pipette 27 and subsequent contact with different raw materials in other material chambers 7 causing severe mixing, such as... Figure 4 As shown, a distance sensor 30 is installed on the rotating frame 20. The distance sensor 30 can be an infrared distance sensor or an ultrasonic distance sensor. Driven by the rotating drive element 16, the distance sensor 30 rotates to a position directly above the feeding chamber 8 or any raw material chamber 7. The distance sensor 30 detects the liquid level in the raw material chamber 7 by measuring the distance from the liquid surface. By using the distance sensor 30, the distance between the suction port and the liquid surface can be calculated, thereby preventing the pipette 27 from drawing liquid dry and preventing excessive immersion of the outer wall of the pipette 27 into the liquid raw material.

[0046] In a preferred embodiment, to facilitate the keyed connection between the upper rotating sleeve 21 and the upper connecting key 24, and the keyed connection between the lower rotating sleeve 10 and the lower connecting key 25, both the upper connecting key 24 and the lower connecting key 25 are flat keys, and two of each are provided. Figure 11 As shown, the upper rotating sleeve 21 is provided with an upper keyway that connects to the upper connecting key 24, as shown. Figure 2 As shown, the lower rotating sleeve 10 is provided with a lower keyway that connects to the lower connecting key 25.

[0047] In a preferred embodiment, to facilitate the rotatable mounting of the elastic element 19 on the rotating shaft 17, such as... Figure 4As shown, a fixed seat 31 is fixedly installed on the rotating shaft 17, a first bearing 32 is fixedly installed on the fixed seat 31, a rotating seat 18 is fitted on the rotating shaft 17, and the rotating seat 18 is rotatably connected to the fixed seat 31 through the first bearing 32. An elastic element 19 is installed on the rotating seat 18.

[0048] In a preferred embodiment, to facilitate the stable insertion of the limiting rod 14 into the insertion sleeve 23, such as... Figure 4 As shown, the top of the plug sleeve 23 is provided with an inner chamfer 33. The inner chamfer 33 can guide the limiting plug rod 14, making it easier for the limiting plug rod 14 to be inserted into the plug sleeve 23.

[0049] In a preferred embodiment, to prevent material from entering the lower rotating sleeve 10 from the dissolving vessel 1, such as... Figure 1 As shown, the bottom of the lower rotating sleeve 10 is a closed structure.

[0050] In a preferred embodiment, to prevent the remaining pesticide material in the storage container 5 from escaping to the outside when not in operation, such as Figures 6 to 8 As shown, the liquid storage container 5 is hinged with two symmetrically arranged semi-circular caps 34. Each semi-circular cap 34 has a semi-circular notch 35 at its free end. A bottom sealing gasket 36 is fixed to one end face of the semi-circular cap 34 used to close the liquid storage container 5, and a handle is fixed to the other end face. A side sealing gasket 37 is fixed to the free end of the semi-circular cap 34. When the semi-circular cap 34 closes the liquid storage container 5, the two side sealing gaskets 37 seal against each other and against the rotating shaft 17, while the bottom sealing gasket 36 seals against the top of the liquid storage container 5. The handle facilitates the rotation of the semi-circular caps 34, and the two semi-circular caps 34 cooperate to close the open top of the liquid storage container 5.

[0051] In a preferred embodiment, to facilitate filtration of the stirred pesticide and remove insoluble matter, such as... Figure 3 As shown, a filter screen 39 is installed at the lower end of valve 3.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A pesticide preparation device, comprising a dissolving vessel (1), wherein a discharge port (2) is provided at the bottom of the dissolving vessel (1), and a valve (3) is installed at the discharge port (2), characterized in that, The dissolving vessel (1) is fixed with a support (4) and a liquid storage container (5). The liquid storage container (5) is fixed at the top of the dissolving vessel (1). The top of the liquid storage container (5) is open. The liquid storage container (5) is provided with a central cavity (6), a raw material cavity (7) and a discharge cavity (8). There are multiple raw material cavities (7). The raw material cavity (7) and the discharge cavity (8) are located around the central cavity (6). The bottom of the discharge cavity (8) is provided with a discharge port (9) that communicates with the dissolving vessel (1). A lower rotating sleeve (10) is rotatably installed in the central cavity (6). The lower end of the lower rotating sleeve (10) extends into the dissolving vessel (1) and is equipped with a stirring component (11). A first linear actuator (12) and a baffle plate (13) are fixedly installed on the support (4). A limit rod (14) is fixedly installed at the lower end of the baffle plate (13). A lifting frame (15) is installed at the output end of the first linear actuator (12). A rotary drive is fixedly installed on the lifting frame (15). The component (16) has a rotating shaft (17) rotatably mounted on the lifting frame (15). The output end of the rotary drive component (16) is connected to the rotating shaft (17) for transmission. A rotating seat (18) is rotatably mounted on the rotating shaft (17). An elastic element (19) is mounted on the upper end of the rotating seat (18). A rotating frame (20) is mounted on the upper end of the elastic element (19). An upper rotating sleeve (21), a pipetting mechanism (22), and a plug-in sleeve (23) are fixedly mounted on the rotating frame (20). An upper connecting key (24) and a lower connecting key (25) are fixed on the rotating shaft (17). The lower connecting key (25) is key-connected to the lower rotating sleeve (10). When the elastic element (19) is in its natural state, the upper rotating sleeve (21) is key-connected to the upper connecting key (24). The rotary drive component (16) can drive the rotating shaft (17) to rotate at a preset angle so that the pipetting mechanism (22) rotates to the top of the feeding chamber (8) or any raw material chamber (7). When the elastic element (19) is in a compressed state and its length is less than the first length, the upper rotating sleeve (21) separates from the upper connecting key (24); the plug sleeve (23) is used to plug into the limiting plug rod (14), and the intercepting plate (13) is used to contact the plug sleeve (23) to restrict the rotating frame (20) from rising synchronously with the rotating shaft (17), so that the elastic element (19) can be compressed to a length less than the first length.

2. The pesticide preparation device according to claim 1, characterized in that, The pipetting mechanism (22) includes a second linear actuator (26), a pipette (27), a piston (28), and a piston rod (29). The second linear actuator (26) and the pipette (27) are fixedly connected to the rotating frame (20). The top of the pipette (27) is open, and the bottom of the pipette (27) is provided with a suction port. The piston (28) is slidably sealed inside the pipette (27). The piston rod (29) is fixedly connected to the piston (28). The output end of the second linear actuator (26) is fixedly connected to the piston rod (29). The pipette (27) can rotate to the top of the feeding chamber (8) or any raw material chamber (7) under the drive of the rotary drive element (16).

3. The pesticide preparation device according to claim 2, characterized in that, The rotating frame (20) is equipped with a distance sensor (30). The distance sensor (30) can rotate to the top of the feeding chamber (8) or any raw material chamber (7) under the drive of the rotation driving element (16). The distance sensor (30) detects the liquid level in the raw material chamber (7) by detecting the distance from the liquid surface in the raw material chamber (7).

4. The pesticide preparation apparatus according to claim 1, characterized in that, Both the upper connecting key (24) and the lower connecting key (25) are flat keys. The upper rotating sleeve (21) is provided with an upper keyway that connects to the upper connecting key (24), and the lower rotating sleeve (10) is provided with a lower keyway that connects to the lower connecting key (25).

5. The pesticide preparation apparatus according to claim 1, characterized in that, A fixed seat (31) is fixedly installed on the rotating shaft (17), a first bearing (32) is fixedly installed on the fixed seat (31), a rotating seat (18) is fitted on the rotating shaft (17), the rotating seat (18) is rotatably connected to the fixed seat (31) through the first bearing (32), and an elastic element (19) is installed on the rotating seat (18).

6. The pesticide preparation apparatus according to claim 1, characterized in that, The top of the plug sleeve (23) is provided with an inner chamfer (33).

7. The pesticide preparation apparatus according to claim 1, characterized in that, The bottom of the lower rotating sleeve (10) has a closed structure.

8. The pesticide preparation apparatus according to claim 1, characterized in that, The liquid storage container (5) is hinged with two symmetrically arranged semi-circular caps (34). The free end of the semi-circular cap (34) is provided with a semi-circular notch (35). A bottom sealing gasket (36) is fixed on one end face of the semi-circular cap (34) used to close the liquid storage container (5). A handle is fixed on the other end face of the semi-circular cap (34). A side sealing gasket (37) is fixed on the free end of the semi-circular cap (34). When the semi-circular cap (34) closes the liquid storage container (5), the two side sealing gaskets (37) are sealed and abut against each other and sealed and abut against the rotating shaft (17). The bottom sealing gasket (36) is sealed and abut against the top of the liquid storage container (5).

9. The pesticide preparation apparatus according to claim 1, characterized in that, The output end of the rotary drive element (16) is connected to the rotating shaft (17) via a coupling (38).

10. The pesticide preparation apparatus according to claim 1, characterized in that, A filter screen (39) is installed at the lower end of the valve (3).

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