Pesticide mixed dosage metering equipment

Abstract

The invention relates to the technical field of agricultural pesticide mixed application, in particular to pesticide mixed dosage metering equipment which comprises a first mixing cylinder, a base part, a driving assembly, a weight information collecting and sending module, a rotating shaft, a plurality of pressure sensors, a measuring cup mounting assembly and a measuring cup structure. Scales and a water injection pipe head are arranged on the second mixing cylinder; when being metered, medicaments are classified and placed in the measuring cup structures corresponding to the first mixing cylinder at one time, the weights of the medicaments act on the pressure sensors in the placing process, the weights of the added medicaments are detected in real time, a plurality of medicaments can be accurately weighed at one time, and the metering time is shortened; after the required medicament weight is added, the second mixing cylinder and the first mixing cylinder are connected to form a sealed space, and the required water amount is injected through the scales and the water injection pipe head; and the measuring cup structure is connected with the rotating shaft through the measuring cup mounting assembly, so that the measuring cup structure is used as a stirring structure to accelerate the mixing of the medicament and the water.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural pesticide mixed application, and in particular to a pesticide mixed dosage metering device. Background Art

[0002] At present, the rationality of pesticide mixing directly affects its pest control effect. Reasonable pesticide mixing can improve the control effect, delay the development of pesticide resistance in pests and diseases, reduce the amount of medicine used, and reduce labor costs. For example, the mixed use of pesticides with different toxicity mechanisms can complement each other and improve the control effect. In addition, the mixed use of pesticides with different toxicity (such as contact, stomach poison, fumigation, systemic, etc.) and fungicides with different modes of action (such as protection, treatment, systemic, etc.) can also significantly improve the control effect. However, unreasonable pesticide mixing may lead to weakened efficacy or even pesticide damage. For example, the mixed use of pesticides with the same ingredients or pesticides that react with each other will lead to reduced efficacy or pesticide damage, so it is necessary to strictly ensure the ratio of pesticide mixing and measure it.

[0003] In the related art, the materials are generally weighed on a metering device and then put into a spray device to be sprayed, and then water is added to mix. Generally, one liquid agent or powder agent is measured at a time, resulting in a slow overall mixing efficiency. In addition, after being put into the spray device, it is generally necessary to shake it to mix it together, resulting in uneven mixing. Summary of the invention

[0004] The embodiment of the present application provides a pesticide mixing dosage metering device to solve the problem in the related art that the pesticide is usually weighed on a metering device and then put into a spray device to be sprayed, and then water is added to mix; wherein generally one liquid agent or powder agent is measured at a time, resulting in slow overall mixing efficiency and uneven mixing of the liquid agent or powder agent with water.

[0005] In a first aspect, a pesticide mixed dosage metering device is provided, comprising: The first mixing cylinder has an open top and a sealed bottom; a base portion is provided on the bottom wall of the first mixing cylinder; a driving assembly and a weight information collection and transmission module are provided in the base portion; a plurality of pressure sensors connected to the weight information collection and transmission module are packaged on the top of the base portion; A rotating shaft is located in the first mixing barrel; the bottom of the rotating shaft is inserted into the base portion and is in transmission connection with the driving assembly; a measuring cup mounting assembly is fixedly connected to the rotating shaft and located above the pressure sensor; a plurality of measuring cup structures that move vertically are provided on the measuring cup mounting assembly, the measuring cup structures correspond to the pressure sensors one by one, and the bottoms of the measuring cup structures are in contact with the tops of the pressure sensors; The second mixing cylinder is sealed at the top and open at the bottom. The bottom of the second mixing cylinder is plugged into the top of the first mixing cylinder and is made of transparent material. The second mixing cylinder is provided with scales and a water injection pipe head.

[0006] In some embodiments, a control module connected to the drive assembly and the weight information collecting and sending module is provided on the outer side of the first mixing cylinder. The control module is connected to a display screen and is provided with a drive assembly start / stop switch.

[0007] In some embodiments, the measuring cup structure includes a measuring cup body and a plug-in column, and a vertically arranged guide limit block is provided on the outer side of the plug-in column; The measuring cup mounting assembly includes a disc coaxially connected to the rotating shaft, and the disc is provided with through holes corresponding to the pressure sensors one by one; a vertical circular tube coaxial with the through holes is provided on the top of the disc, and a vertical guide groove engaged with the guide limit block is provided on the inner wall of the vertical circular tube; the plug-in column passes through the vertical circular tube and the through holes in sequence, and contacts the top of the pressure sensor.

[0008] In some embodiments, the plug-in column includes a first part and a second part arranged vertically, the diameter of the second part is smaller than the diameter of the first part; the diameter of the through hole is equal to the diameter of the second part; the length of the second part is greater than the length of the through hole.

[0009] In some embodiments, the number of the guide limit blocks is multiple and they are evenly distributed in a circle with the plug-in column as the center; The number of the vertical guide grooves is equal to the number of the guide limit blocks.

[0010] In some embodiments, the measuring cup body is distributed in a circle with the rotating shaft as the center, and the number of the measuring cup body is the same as the pressure sensor; the internal space of the measuring cup body is arc-shaped in the radial direction of the rotating shaft, and the depth of the internal space of the measuring cup body at one end close to the rotating shaft is greater than the depth at the end away from the rotating shaft; the measuring cup body has a side opening at the end away from the rotating shaft, and a drug injection port is provided on the top of the measuring cup body; The outer surfaces of the plurality of measuring cup bodies are provided with color markings, and the color markings of the color of each measuring cup body are different.

[0011] In some embodiments, the measuring cup body comprises a side sealing plate portion, a bottom sealing plate portion and two spaced arc-shaped plate portions; the top of the arc-shaped plate portion is a horizontal surface, and the bottom is an inclined surface; the inclined surface is located at a lower height than the end away from the rotating shaft in the radial direction of the rotating shaft; The side sealing plate portion seals one end of the space formed by the two spaced arc-shaped plate portions close to the rotating shaft; the bottom sealing plate seals the bottom of the space formed between the bottoms of the two spaced arc-shaped plate portions.

[0012] In some embodiments, a threaded rod is provided at the top of the rotating shaft, and a nut is provided on the threaded rod; a pressing plate coaxial with the nut is provided on the bottom end surface of the nut; and the bottom of the pressing plate contacts the top of the measuring cup body.

[0013] In some embodiments, the top end surface of the first mixing cylinder is provided with an annular groove concentric therewith; the annular groove has a designed depth in the vertical direction; The bottom of the second mixing cylinder is provided with an inserting cylinder plugged into the annular groove, and the interior of the inserting cylinder is provided with a sealing ring in contact with the top end surface of the first mixing cylinder.

[0014] In some embodiments, the pesticide mixing dosage metering device also includes a first discharge pipe connected to the internal space of the first mixing barrel, and a one-way solenoid valve is provided on the first discharge pipe; the first discharge pipe is connected to a delivery pump, and the discharge port of the delivery pump is connected to a spray device through a second discharge pipe.

[0015] The beneficial effects of the technical solution provided by this application include: The embodiment of the present application provides a pesticide mixing dosage metering device, wherein the first mixing barrel is open at the top and sealed at the bottom; a base portion is provided on the bottom wall of the first mixing barrel; a driving assembly and a weight information collecting and sending module are provided in the base portion; a plurality of pressure sensors connected to the weight information collecting and sending modules are encapsulated on the top of the base portion; a rotating shaft is located in the first mixing barrel; the bottom of the rotating shaft is passed through the base portion and is transmission-connected to the driving assembly; a measuring cup mounting assembly is fixedly connected to the rotating shaft and located above the pressure sensor; a plurality of measuring cup structures that move vertically are provided on the measuring cup mounting assembly, the measuring cup structures correspond to the pressure sensors one by one, and the bottoms of the measuring cup structures are in contact with the tops of the pressure sensors; the second mixing barrel is sealed at the top and open at the bottom; the bottom of the second mixing barrel is plugged into the top of the first mixing barrel and is made of transparent material, and a scale and a water injection pipe head are provided on the second mixing barrel; so that the liquid agent or powder required for metering can be measured When adding medicines, they can be classified and placed in the measuring cup structure corresponding to the first mixing cylinder at one time, and their weight acts on the pressure sensor during the placement process. The pressure sensor is pressurized to detect the weight of the added medicine in real time, so that multiple medicines can be accurately weighed at one time to reduce the metering time; after adding the required weight of medicines, the second mixing cylinder and the first mixing cylinder are connected to form a sealed space, and then the required amount of water is injected through the scale and the water injection pipe head; the rotating shaft is then driven to rotate by the driving assembly, and since the measuring cup structure is connected to the rotating shaft through the measuring cup mounting assembly, the measuring cup structure is used as a stirring structure to accelerate the mixing of the medicine and water, so as to solve the problem in the related art that the medicine is generally weighed on the metering equipment and then put into the spray equipment to be sprayed, and then water is added for mixing; generally one liquid medicine or powder medicine is measured at a time, resulting in slow overall mixing efficiency and uneven mixing of the liquid medicine or powder medicine with water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the overall structure of a pesticide mixed dosage metering device according to a first embodiment of the present application; Figure 2 Provided for the embodiments of this application Figure 1 A schematic diagram of the structure from an upward perspective; Figure 3 Provided for the embodiments of this application Figure 1 Right view in; Figure 4 A schematic diagram of the internal structure of a pesticide mixing dosage metering device according to a first embodiment of the present application; Figure 5 A schematic diagram of the structure of multiple measuring cups provided in an embodiment of the present application; Figure 6 A schematic diagram of the connection between multiple measuring cup structures and measuring cup mounting components, a rotating shaft, and a pressing plate provided in an embodiment of the present application; Figure 7 A schematic diagram of a first mixing barrel provided in an embodiment of the present application in which a plurality of measuring cup structures and measuring cup mounting components, a rotating shaft, and a pressing plate are arranged; Figure 8 Provided for the embodiments of this application Figure 7 A top view of Fig. 9 A detailed structural diagram of the connection between the measuring cup mounting assembly and the measuring cup structure provided in an embodiment of the present application; Fig.10 A schematic diagram of the structure of a pesticide mixing dosage metering device according to a second embodiment of the present application.

[0018] In the figure: 1. first mixing cylinder; 100. annular groove; 2. base; 3. drive assembly; 4. weight information collection and transmission module; 5. rotating shaft; 6. pressure sensor; 7. measuring cup installation assembly; 700. disc; 701. vertical circular tube; 702. vertical guide groove; 8. measuring cup structure; 800. measuring cup body; 801. plug-in column; 802. guide limit block; 9. second mixing cylinder; 900. plug-in cylinder; 901. sealing ring; 10. water injection pipe head; 11. control module; 12. nut; 13. pressure plate; 14. one-way solenoid valve; 15. delivery pump; 16. spray equipment. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] The embodiment of the present application provides a pesticide mixing dosage metering device to solve the problem in the related art that the pesticide is usually weighed on a metering device and then put into a spray device to be sprayed, and then water is added to mix; wherein generally one liquid agent or powder agent is measured at a time, resulting in slow overall mixing efficiency and uneven mixing of the liquid agent or powder agent with water.

[0021] See also Figure 1-Figure 9 , a pesticide mixed dosage metering device, comprising: The first mixing cylinder 1 has an open top and a sealed bottom. The bottom wall of the first mixing cylinder 1 has a base 2. The base 2 is provided with a driving assembly 3 and a weight information collecting and sending module 4. The top of the base 2 is encapsulated with a plurality of pressure sensors 6 connected to the weight information collecting and sending module 4. The rotating shaft 5 is located in the first mixing barrel 1; the bottom of the rotating shaft 5 is penetrated into the base portion 2 and is in transmission connection with the driving assembly 3; a measuring cup installation assembly 7 is fixedly connected to the rotating shaft 5 and located above the pressure sensor 6; a plurality of measuring cup structures 8 that move vertically are provided on the measuring cup installation assembly 7, and the measuring cup structures 8 correspond to the pressure sensors 6 one by one, and the bottom of the measuring cup structures 8 contacts the top of the pressure sensor 6; The second mixing cylinder 9 is sealed at the top and open at the bottom. The bottom of the second mixing cylinder 9 is plugged into the top of the first mixing cylinder 1 and is made of transparent material. The second mixing cylinder 9 is provided with scales and a water injection pipe head 10.

[0022] Through the above arrangement, when the required liquid medicine or powder medicine is measured, it can be classified and placed in the measuring cup structure 8 corresponding to the first mixing cylinder 1 at one time, and its weight acts on the pressure sensor 6 during the placement process. The pressure sensor 6 is pressurized to detect the weight of the added medicine in real time, so that multiple medicines can be accurately weighed at one time to reduce the metering time; after adding the required weight of the medicine, the second mixing cylinder 9 and the first mixing cylinder 1 are connected to form a sealed space, and then the required amount of water is injected through the scale and the water injection pipe head 10; then the driving component 3 drives the rotating shaft 5 to rotate. Since the measuring cup structure 8 is connected to the rotating shaft 5 through the measuring cup mounting component 7, the measuring cup structure 8 is used as a stirring structure to accelerate the mixing of the medicine and water, so as to solve the problem that in the related art, after weighing on the metering equipment, it is put into the spray equipment to be sprayed, and then water is added for mixing; wherein generally one liquid medicine or powder medicine is measured at a time, resulting in a slow overall mixing efficiency and uneven mixing of the liquid medicine or powder medicine with water.

[0023] In some preferred embodiments, reference Figure 4-Figure 9 , a control module 11 connected to the drive assembly 3 and the weight information collection and transmission module 4 is provided on the outside of the first mixing barrel 1, and the control module 11 is connected to a display screen, and a drive assembly start-stop switch is provided on it. Among them, the weight information collection and transmission module 4 converts the pressure signal into a digital signal of weight and sends it to the control module 11, and the control module 11 displays the real-time weight through the display screen; the display screen is used to display the weight of the medicine added in each measuring cup structure 8, and a magnetic attraction part is provided on the outside of the control module 11, and the magnetic attraction part is magnetically connected to the steel material on the outside of the first mixing barrel 1, and the start-stop switch of the drive assembly 3 can control the start and stop of the drive assembly 3. The drive assembly 3 includes a gear set and a drive motor, which is meshed with the gear set shaft 5, and a sealing ring is provided at the connection between the shaft 5 and the base 2.

[0024] In some preferred embodiments, the measuring cup structure 8 includes a measuring cup body 800 and a plug-in column 801, and a vertically arranged guide limit block 802 is provided on the outer side of the plug-in column 801; The measuring cup mounting assembly 7 includes a disc 700 coaxially connected to the rotating shaft 5, and the disc 700 is provided with a through hole corresponding to the pressure sensor 6 one by one; a vertical circular tube 701 coaxial with the through hole is provided on the top of the disc 700, and a vertical guide groove 702 engaged with the guide limit block 802 is provided on the inner wall of the vertical circular tube 701; the plug-in column 801 passes through the vertical circular tube 701 and the through hole in sequence, and contacts with the top of the pressure sensor 6.

[0025] The above structure introduces in detail how the measuring cup structure 8 is connected to the measuring cup mounting assembly 7. The cooperation of the vertical guide groove 702 and the guide limit block 802 in the vertical circular tube 701 limits the circumferential movement of the plug-in column 801 and guides it in the vertical direction. In addition, due to the existence of the through hole and the vertical circular tube 701, the plug-in column 801 can move vertically to contact the pressure sensor 6, thereby ultimately achieving both limiting and weighing. Furthermore, during the rotation of the measuring cup mounting assembly 7, multiple measuring cup structures 8 also rotate synchronously, ultimately achieving multiple effects such as transmission, guiding, limiting, and facilitating measurement.

[0026] For further reference, Fig. 9 The plug-in column 801 includes a first part and a second part arranged vertically, the diameter of the second part is smaller than the diameter of the first part; the diameter of the through hole is equal to the diameter of the second part; the length of the second part is greater than the length of the through hole. The above design prevents the plug-in column 801 from being subjected to external force when moving vertically, resulting in overpressure acting on the pressure sensor 6, that is, limiting the maximum vertical displacement of the plug-in column 801.

[0027] Furthermore, there are multiple guide limit blocks 802, and they are evenly distributed in a circle with the plug-in column 801 as the center; The number of the vertical guide grooves 702 is equal to the number of the guide limit blocks 802. The above design can increase the connection area between the plug-in column 801 and the vertical circular tube 701, and improve the torsion resistance during the rotation process.

[0028] In some preferred embodiments, a threaded rod is provided at the top of the rotating shaft 5 , and a nut 12 is provided on the threaded rod; a pressing plate 13 coaxial with the pressing plate 13 is provided on the bottom end surface of the pressing plate 13 ; and the bottom of the pressing plate 13 contacts the top of the measuring cup body 800 .

[0029] Since the above-mentioned limit for the measuring cup body 800 lacks a vertical limit, the plug-in column 801 may be separated from the vertical circular tube 701 during the rotation process. Therefore, the vertical limit is achieved through the cooperation between the pressure plate 13 and the pressure plate 13 and the rotating shaft 5. Of course, the limit height can be changed by the connection position with the threaded rod.

[0030] In some preferred embodiments, reference Figure 7-Figure 8 The measuring cup body 800 is distributed in a circle with the rotating shaft 5 as the center, and the number of the measuring cup body 800 is the same as the pressure sensor 6; the internal space of the measuring cup body 800 is arc-shaped in the radial direction of the rotating shaft 5, and the depth of the internal space of the measuring cup body 800 at the end close to the rotating shaft 5 is greater than the depth at the end away from the rotating shaft 5; the measuring cup body 800 has a side opening at the end away from the rotating shaft 5, and a drug injection port is provided on the top of the measuring cup body 800; The outer surfaces of the multiple measuring cup bodies 800 are provided with color markings, and the color markings of each measuring cup body 800 are different in color. The different colors make it easy to distinguish the added medicines and correspond to the display columns on the display screen.

[0031] Through the above design, the arrangement of multiple measuring cup structures 8 forms a spiral arrangement, and the space for storing medicine therein is also spiral, so that the multiple measuring cup structures 8 form discrete jets during the process of installing the measuring cup assembly 7, so that the medicine inside the measuring cup structure 8 is discharged from its space through centrifugal force and mixed with water.

[0032] Furthermore, the measuring cup body 800 includes a side sealing plate portion, a bottom sealing plate portion and two spaced arc-shaped plate portions; the top of the arc-shaped plate portion is a horizontal surface, and the bottom is an inclined surface; the inclined surface is in the radial direction of the rotating shaft 5, and the height of the end close to the rotating shaft 5 is lower than the height of the end away from the rotating shaft 5; The side sealing plate seals one end of the space formed by the two spaced arc-shaped plate portions close to the rotating shaft 5; the bottom sealing plate seals the bottom of the space formed between the bottoms of the two spaced arc-shaped plate portions. The specific formation structure of the measuring cup body 800 is described in detail above, so that the measuring cup body 800 is similar to a stirring blade, and the stirring blade stores the medicine inside. Since it is similar to a stirring blade, it is convenient to fully stir the water and the medicine.

[0033] In some preferred embodiments, a concentric annular groove 100 is provided on the top end surface of the first mixing drum 1; the annular groove 100 has a designed depth in the vertical direction; the designed depth may be 5-10 cm, thus ensuring the stability and strength of the connection.

[0034] A plug-in cylinder 900 is provided at the bottom of the second mixing cylinder 9 for plugging into the annular groove 100, and a sealing ring 901 is provided inside the plug-in cylinder 900 for contacting the top end surface of the first mixing cylinder 1; wherein the design of the sealing ring 901 enables that after the second mixing cylinder 9 is plugged in, the connection between the plug-in point and the top of the first mixing cylinder 1 is sealed by the sealing ring 901 to avoid leakage.

[0035] Furthermore, in order to avoid negative pressure caused by the plug-in cylinder 900 and the annular groove 100 and facilitate opening, the following configuration is provided: an exhaust groove connected to the annular groove 100 is provided on the outside of the first mixing cylinder 1 .

[0036] In some preferred embodiments, reference Fig.10 The pesticide mixing dosage metering device also includes a first liquid discharge pipe connected to the internal space of the first mixing barrel 1, and a one-way solenoid valve 14 is provided on the first liquid discharge pipe; the first liquid discharge pipe is connected to a delivery pump 15, and the discharge port of the delivery pump is connected to a spray device 16 through a second liquid discharge pipe.

[0037] In this embodiment, it is used in conjunction with the spray equipment 16. When mixing pesticides, after a fixed dose of mixed pesticide is obtained in the space formed by the first mixing cylinder 1 and the second mixing cylinder 9, the one-way solenoid valve 14 and the delivery pump 15 are opened to transfer it to the spray equipment 16, thereby achieving the purpose of rapid transfer.

[0038] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. 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 application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A pesticide mixing dosage metering device, characterized in that: It includes: A first mixing cylinder (1) having an open top and a sealed bottom; a base portion (2) is provided on the bottom wall of the first mixing cylinder (1); a driving assembly (3) and a weight information collecting and transmitting module (4) are provided in the base portion (2); a plurality of pressure sensors (6) connected to the weight information collecting and transmitting module (4) are encapsulated on the top of the base portion (2); A rotating shaft (5) is located in the first mixing barrel (1); the bottom of the rotating shaft (5) is inserted into the base portion (2) and is in driving connection with the driving assembly (3); a measuring cup mounting assembly (7) is fixedly connected to the rotating shaft (5) and located above the pressure sensor (6); a plurality of measuring cup structures (8) that can move vertically are provided on the measuring cup mounting assembly (7), the measuring cup structures (8) corresponding to the pressure sensors (6) one by one, and the bottom of the measuring cup structure (8) contacts the top of the pressure sensor (6); A second mixing cylinder (9) having a sealed top and an open bottom; The bottom of the second mixing cylinder (9) is plugged into the top of the first mixing cylinder (1) and is made of a transparent material. The second mixing cylinder (9) is provided with a scale and a water injection pipe head (10).

2. The pesticide mixed dosage metering device according to claim 1, characterized in that: A control module (11) connected to the drive assembly (3) and the weight information collecting and sending module (4) is provided on the outside of the first mixing cylinder (1); the control module (11) is connected to a display screen and is provided with a drive assembly start / stop switch.

3. The pesticide mixing dosage metering device according to claim 1, characterized in that: The measuring cup structure (8) comprises a measuring cup body (800) and a plug-in column (801), and a vertically arranged guide limit block (802) is provided on the outer side of the plug-in column (801); The measuring cup mounting assembly (7) comprises a disc (700) coaxially connected to the rotating shaft (5), the disc (700) being provided with through holes corresponding to the pressure sensors (6) one by one; a vertical circular tube (701) coaxial with the through holes is provided on the top of the disc (700), a vertical guide groove (702) engaged with the guide limit block (802) is provided on the inner wall of the vertical circular tube (701); the plug-in column (801) passes through the vertical circular tube (701) and the through holes in sequence, and contacts the top of the pressure sensor (6).

4. The pesticide mixing dosage metering device according to claim 3, characterized in that: The plug-in column (801) comprises a first part and a second part which are arranged vertically, the diameter of the second part being smaller than the diameter of the first part; the diameter of the through hole being equal to the diameter of the second part; and the length of the second part being greater than the length of the through hole.

5. The pesticide mixed dosage metering device according to claim 3, characterized in that: The number of the guide limit blocks (802) is plural and they are evenly distributed in a circle with the plug-in column (801) as the center; The number of the vertical guide grooves (702) is equal to the number of the guide limit blocks (802).

6. The pesticide mixed dosage metering device according to claim 3, characterized in that: The measuring cup bodies (800) are distributed in a circle with the rotating shaft (5) as the center, and the number of the measuring cup bodies (800) is the same as that of the pressure sensors (6); the internal space of the measuring cup body (800) is arc-shaped in the radial direction of the rotating shaft (5), and the depth of the internal space of the measuring cup body (800) at the end close to the rotating shaft (5) is greater than the depth of the end away from the rotating shaft (5); the measuring cup body (800) has a side opening at the end away from the rotating shaft (5), and a medicine injection port is provided at the top of the measuring cup body (800); The outer surfaces of the plurality of measuring cup bodies (800) are provided with color markings, and the color of the color markings of each measuring cup body (800) is different.

7. The pesticide mixing dosage metering device according to claim 6, characterized in that: The measuring cup body (800) comprises a side sealing plate portion, a bottom sealing plate portion and two spaced arc-shaped plate portions; the top of the arc-shaped plate portion is a horizontal surface, and the bottom is an inclined surface; the inclined surface is located at a lower height at the end close to the rotating shaft (5) than at the end away from the rotating shaft (5) in the radial direction of the rotating shaft (5); The side sealing plate portion seals one end of the space formed by the two spaced arc-shaped plate portions close to the rotating shaft (5); and the bottom sealing plate seals the bottom of the space formed between the bottoms of the two spaced arc-shaped plate portions.

8. The pesticide mixed dosage metering device according to claim 3, characterized in that: A threaded rod is provided at the top of the rotating shaft (5), and a nut (12) is provided on the threaded rod; a pressing plate (13) coaxial with the nut (12) is provided on the bottom end surface of the nut (12); and the bottom of the pressing plate (13) contacts the top of the measuring cup body (800).

9. The pesticide mixed dosage metering device according to claim 1, characterized in that: An annular groove (100) is provided on the top end surface of the first mixing cylinder (1) and is concentric therewith; the annular groove (100) has a designed depth in the vertical direction; The bottom of the second mixing cylinder (9) is provided with an insert cylinder (900) which is plugged into the annular groove (100), and the inside of the insert cylinder (900) is provided with a sealing ring (901) which contacts the top end surface of the first mixing cylinder (1).

10. The pesticide mixed dosage metering device according to claim 1, characterized in that: The pesticide mixing dosage metering device further comprises a first liquid discharge pipe connected to the internal space of the first mixing barrel (1), and a one-way solenoid valve (14) is provided on the first liquid discharge pipe; the first liquid discharge pipe is connected to a delivery pump (15), and the discharge port of the delivery pump is connected to a spray device (16) via a second liquid discharge pipe.

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