Jetting device of biological agent for inhibiting blue-green algae

Abstract

The invention discloses a spraying device of a biological agent for inhibiting blue-green algae, and relates to the technical field of blue-green algae inhibition, the spraying device comprises a pesticide storage barrel and a pesticide spraying assembly, a mounting seat is fixed at the bottom of the pesticide storage barrel, a power box is arranged at one end of the top of the mounting seat, and an observation window is arranged on the outer side of the pesticide storage barrel; the pesticide spraying assembly is arranged on the upper portion of the pesticide storage barrel and comprises a motor base, the motor base is fixed to the top of the pesticide storage barrel, and a gear motor is arranged at the top of the motor base. The gear motor drives the stirring shaft to rotate, medicine stirring and pumping functions are integrally designed, the stirring shaft synchronously drives the driving column to do circular motion in the guide sleeve, rotation of the guide sleeve is limited through the connecting rod, the driving column drives the guide sleeve to do reciprocating lifting motion, and then the piston plate is driven to do reciprocating lifting motion in the sealing cover. When the piston plate moves upwards, negative pressure is formed to suck liquid medicine, and when the piston plate presses downwards, the liquid medicine is extruded to the spray head to be sprayed out through the second one-way valve, and continuous and stable liquid medicine spraying is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blue-green algae inhibition, in particular to a blue-green algae inhibition biological agent spraying device. BACKGROUND

[0002] The blue-green algae inhibition biological agent refers to a product that uses substances existing in nature, which have life activity or are derived from organisms, to safely and environmentally control or reduce the overgrowth of blue-green algae through specific mechanisms such as competition, inhibition, predation, and decomposition.

[0003] Currently, when biological agents are applied in river channels, the biological agent particles are usually dissolved in a dilution tank, and then the pump is used to pressurize the liquid medicine, which is sprayed on the water surface through the nozzle. However, in actual use, when some of the drug particles are not fully dissolved, they tend to accumulate in the nozzle, causing the nozzle to be blocked, which affects the efficiency of spraying. At the same time, the drug in the tank can also stratify, resulting in large fluctuations in the concentration of the spray, reducing the effectiveness of the use. SUMMARY

[0004] The present application aims to provide a blue-green algae inhibition biological agent spraying device to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a blue-green algae inhibition biological agent spraying device, comprising a medicine storage barrel and a medicine spraying assembly, the bottom of the medicine storage barrel is fixed with a mounting seat, and the top of the mounting seat is provided with a power box at one end, the outside of the medicine storage barrel is provided with an observation window, the medicine spraying assembly is arranged on the upper part of the medicine storage barrel, and the medicine spraying assembly comprises a motor seat, the top of the medicine storage barrel is fixed with the motor seat, and the top of the motor seat is provided with a speed reducer, the output end of the speed reducer is connected with a stirring shaft, the lower end of the stirring shaft is slidably connected with a lifting plate on the outside, the bottom surface of the lifting plate is connected with a flexible filter screen on the outside, the upper part of the stirring shaft is provided with a first one-way valve, the outer side of the upper end of the stirring shaft is fixed with a driving column, the outer side of the driving column is slidably connected with a guide sleeve, the bottom of the guide sleeve is fixed with a connecting rod, the bottom of the connecting rod is provided with a piston plate, the outer side of the piston plate is slidably connected with a sealing cover, one side of the sealing cover is fixed with a second one-way valve, one end of the second one-way valve is connected with a manifold, the top of the manifold is provided with a three-way electromagnetic valve, and the top of the three-way electromagnetic valve is rotatably connected with a nozzle.

[0006] Further, the grooves in the guide sleeve are in a V-shaped structure connected head to tail, and the width of the grooves in the guide sleeve matches the diameter of the driving column.

[0007] Further, the connecting rods are equidistantly distributed along the bottom of the guide sleeve, and the connecting rods are slidably connected with the medicine storage barrel through dynamic sealing.

[0008] Furthermore, the stirring shaft is hollow, and it is slidably connected to the piston plate through a dynamic seal, and is also rotatably connected to the sealing cover through the dynamic seal.

[0009] Furthermore, the three-way solenoid valve is connected to the interior of the medicine storage tank via a pipe, and the medicine storage tank is fixedly connected to the sealing cover.

[0010] Furthermore, the top of the medicine storage tank is provided with a steering assembly, and the steering assembly includes a slide rod. The slide rod is installed on one side of the guide sleeve, and a guide plate is slidably connected to the outer side of one end of the slide rod. A rotating ring is fixed on the top of the guide plate, and the rotating ring is rotatably connected to the motor base. A tension spring is fixed on one side of the rotating ring, and the tension spring is fixedly connected to the nozzle.

[0011] Furthermore, the guide plate is arc-shaped, and the inner groove of the guide plate is inclined.

[0012] Furthermore, a support plate is fixed to one end of the top of the medicine storage tank, and a positive and negative threaded screw is rotatably connected to the upper part of the support plate. Adjustment seats are symmetrically arranged on the outer side of the positive and negative threaded screw, and a rubber-coated column is connected to the top of the adjustment seat.

[0013] Furthermore, the lower end of the medicine storage tank is inverted conical, and an anti-clogging component is provided at the bottom of the medicine storage tank. The anti-clogging component includes a support column, and the support columns are symmetrically arranged at the bottom of the medicine storage tank, with rollers rotatably connected to the upper part of the support column.

[0014] Furthermore, the top of the lifting plate is provided with protrusions at equal intervals around the circumference, and the bottom of the lifting plate is fixed with a spring seat. A rotating plate is placed at the bottom of the spring seat, and the rotating plate is fixedly connected to the flexible filter screen and rotatably connected to the medicine storage tank.

[0015] This invention provides a spraying device for a biological agent that inhibits cyanobacteria, which has the following beneficial effects: 1. This invention integrates drug mixing and pumping functions by driving the stirring shaft to rotate using a geared motor. The stirring shaft synchronously drives the drive column to perform circumferential motion within the guide sleeve. The rotation of the guide sleeve is restricted by a connecting rod, and the drive column drives the guide sleeve to perform reciprocating lifting and lowering motion, which in turn drives the piston plate to reciprocate lifting and lowering within the sealed cover. When the piston plate moves upward, it creates a negative pressure to draw in the drug solution. When it moves downward, it squeezes the drug solution through the second one-way valve to spray it out from the nozzle, achieving continuous and stable drug solution spraying. At the same time, the rotation of the stirring shaft can prevent drug precipitation and stratification, and the flexible filter screen intercepts undissolved particles, preventing pipeline blockage, thereby improving the reliability and service life of the device. During the initial drug mixing, the three-way solenoid valve can be used to switch the connection state to accelerate drug mixing, significantly improving mixing efficiency and uniformity.

[0016] 2. This invention utilizes a guide sleeve to drive a sliding rod to reciprocate up and down, and a guide plate groove to drive a rotating ring to reciprocate. A tension spring drives the nozzle to oscillate periodically, achieving spray angle adjustment without the need for an additional motor. This design utilizes a single drive system to achieve three functions: stirring, pumping, and oscillation. It eliminates the need for additional motors or drive sources to change the spray angle, simplifying the structure and reducing costs. Furthermore, the spacing between the coated columns can be adjusted via positive and negative threaded screws, and the nozzle oscillation amplitude can be controlled by mechanical limits to adapt to different operating scenarios.

[0017] 3. During the mixing process, some drug particles will move towards the inner wall of the storage tank due to centrifugal force, reducing the risk of clogging of the flexible filter. At the same time, the stirring shaft drives the lifting plate to rotate, so that the protrusions and rollers periodically contact and cooperate with the spring seat to reset, converting the rotational motion into the up-and-down reciprocating motion of the lifting plate. The high-frequency vibration of the flexible filter achieves self-cleaning, prevents the filter pores from clogging, ensures the flow of the liquid and the stability of the flow rate, avoids the impact of the flow rate drop on the spraying efficiency and distance, reduces the frequency of manual maintenance, and improves the reliability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the spraying device for a biological agent for inhibiting cyanobacteria according to the present invention. Figure 2 This is a schematic diagram of the internal structure of the storage tank of the spraying device for a biological agent for inhibiting cyanobacteria according to the present invention. Figure 3 This is a three-dimensional structural diagram of the spraying component of a spraying device for a biological agent for inhibiting cyanobacteria according to the present invention. Figure 4 This is a three-dimensional structural diagram of the piston plate of the injection device for a biological agent for inhibiting cyanobacteria according to the present invention. Figure 5 This is a three-dimensional structural diagram of the guide sleeve of the spraying device for a biological agent for inhibiting cyanobacteria according to the present invention; Figure 6 This is a three-dimensional structural diagram of the coated column of the spraying device for a biological agent for inhibiting cyanobacteria according to the present invention; Figure 7 This is a three-dimensional structural diagram of the anti-clogging component of the spraying device for a biological agent for inhibiting cyanobacteria according to the present invention.

[0019] In the diagram: 1. Storage tank; 2. Mounting base; 3. Power supply box; 4. Observation window; 5. Spraying assembly; 501. Motor base; 502. Gear motor; 503. Stirring shaft; 504. Lifting plate; 505. Flexible filter screen; 506. First check valve; 507. Drive column; 508. Guide sleeve; 509. Connecting rod; 510. Piston plate; 511. Sealing cover; 512. Second check valve; 51 3. Manifold; 514. Three-way solenoid valve; 515. Nozzle; 6. Steering assembly; 601. Slide rod; 602. Guide plate; 603. Rotating ring; 604. Tension spring; 605. Support plate; 606. Threaded screw; 607. Adjusting seat; 608. Rubber-coated column; 7. Anti-clogging assembly; 701. Support column; 702. Roller; 703. Protrusion; 704. Spring seat; 705. Rotating plate. Detailed Implementation

[0020] Please see Figures 1 to 5 The present invention provides a technical solution: a spraying device for a biological agent for inhibiting cyanobacteria, comprising a storage tank 1 and a spraying assembly 5. A mounting base 2 is fixed to the bottom of the storage tank 1, and a power supply box 3 is provided at one end of the top of the mounting base 2. An observation window 4 is provided on the outside of the storage tank 1. The spraying assembly 5 is located on the upper part of the storage tank 1, and the spraying assembly 5 includes a motor base 501. The motor base 501 is fixed to the top of the storage tank 1, and a reduction motor 502 is mounted on the top of the motor base 501. The output end of the geared motor 502 is connected to a stirring shaft 503, and a lifting plate 504 is slidably connected to the outer side of the lower end of the stirring shaft 503. A flexible filter screen 505 is connected to the outer end of the bottom surface of the lifting plate 504. A first one-way valve 506 is installed on the upper part of the stirring shaft 503. A drive column 507 is fixed to the outer side of the upper end of the stirring shaft 503, and a guide sleeve 508 is slidably connected to the outer side of the drive column 507. The inner groove of the guide sleeve 508 has a V-shaped structure with the ends connected, and the guide... The width of the inner groove of the guide sleeve 508 matches the diameter of the drive column 507. A connecting rod 509 is fixed to the bottom of the guide sleeve 508, and a piston plate 510 is installed at the bottom of the connecting rod 509. The connecting rod 509 is equidistantly distributed circumferentially along the bottom of the guide sleeve 508, and the connecting rod 509 is slidably connected to the medicine storage tank 1 through a dynamic seal. A sealing cover 511 is slidably connected to the outside of the piston plate 510, and a second one-way valve 512 is fixed to one side of the sealing cover 511. The stirring shaft 503 is hollow. The stirring shaft 503 is slidably connected to the piston plate 510 through a dynamic seal, and the stirring shaft 503 is rotatably connected to the sealing cover 511 through a dynamic seal. One end of the second one-way valve 512 is connected to the manifold 513, and a three-way solenoid valve 514 is provided at the top of the manifold 513. The three-way solenoid valve 514 is connected to the inside of the medicine storage tank 1 through a pipe, and the medicine storage tank 1 is fixedly connected to the sealing cover 511. A nozzle 515 is rotatably connected to the top of the three-way solenoid valve 514. The specific operation is as follows: When spraying the drug, simply start the reduction motor 502 via the controller to drive the stirring shaft 503 to rotate, stirring the drug inside the storage tank 1. At the same time, the stirring shaft 503 can also synchronously drive the drive column 507 to make a circular motion within the guide sleeve 508. The connecting rod 509 will restrict the rotation of the guide sleeve 508, so the drive column 507 will be driven to make a reciprocating lifting motion through the groove inside the guide sleeve 508, thereby driving the piston plate 510 within the sealing cover 511. The piston plate 510 moves up and down repeatedly. When it moves upward, a negative pressure is created below it, which, through the first one-way valve 506 located below the piston plate 510, creates a negative pressure inside the stirring shaft 503, drawing in the liquid medicine. When the piston plate 510 moves downward, the liquid medicine below it is squeezed through the second one-way valve 512 located below the piston plate 510 into the manifold 513 and sprayed out through the nozzle 515 to apply medicine to the lake surface. At the same time, the piston plate 510 will distribute the liquid medicine inside the sealing cover 511. Divided into two chambers and equipped with two sets of first one-way valves 506 and second one-way valves 512, the piston plate 510 can drive the liquid medicine to move during reciprocating up and down movement, improving the continuity of spraying. This allows for automatic stirring and mixing of the liquid medicine inside the storage tank 1 while spraying, preventing drug sedimentation and stratification that could cause fluctuations in spray concentration and ensuring the uniformity and stability of the inhibitory effect. At the same time, a flexible filter screen 505 is used to cover and filter the lower end of the stirring shaft 503, effectively intercepting undissolved drug particles or impurities and preventing them from entering the delivery pipeline and nozzle 515 and causing blockages. This greatly improves the reliability and service life of the device. During the initial dilution and mixing of drug particles with water, the controller simply switches the connection state of the three-way solenoid valve 514 so that its output end is connected to the inside of the storage tank 1. Therefore, during stirring and mixing, the high concentration of drug at the bottom is drawn to the top, breaking the concentration gradient and significantly improving the efficiency and uniformity of drug mixing, thus shortening the preparation time.

[0021] Please see Figure 1 , Figure 3 and Figure 6 The top of the medicine storage tank 1 is provided with a steering assembly 6, which includes a slide rod 601. The slide rod 601 is placed on one side of the guide sleeve 508, and a guide plate 602 is slidably connected to the outer side of one end of the slide rod 601. A rotating ring 603 is fixed on the top of the guide plate 602, and the rotating ring 603 is rotatably connected to the motor base 501. A tension spring 604 is fixed on one side of the rotating ring 603, and the tension spring 604 is fixedly connected to the nozzle 515. The guide plate 602 is arc-shaped, and the inner through groove of the guide plate 602 is inclined. A support plate 605 is fixed at one end of the top of the medicine storage tank 1, and a positive and negative thread screw 606 is rotatably connected to the upper part of the support plate 605. An adjustment seat 607 is symmetrically arranged on the outer side of the positive and negative thread screw 606, and a rubber-coated column 608 is connected to the top of the adjustment seat 607. The specific operation is as follows: During the spraying process, the guide sleeve 508 will simultaneously drive the slide rod 601 to reciprocate up and down. The slide rod 601 will then push the rotating ring 603 to rotate back and forth through the groove in the guide plate 602. At this time, the rotating ring 603 will pull one end of the nozzle 515 through the tension spring 604, causing it to periodically swing around the upper end of the three-way solenoid valve 514. This design ingeniously utilizes a drive system to realize three functions: stirring, pumping, and swinging. There is no need to add an additional motor or drive source to change the spray angle, which greatly simplifies the mechanical structure and reduces manufacturing costs. At the same time, the automatic swinging of the nozzle 515 can significantly expand the spray coverage width, avoid the formation of dead zones in the application, and greatly improve the work efficiency and the uniformity of the algae suppression effect. Meanwhile, the positive and negative thread screw 606 can be rotated as needed. Due to the sliding contact between the adjusting seat 607 and the top of the storage tank 1... The movable connection restricts the rotation of the adjusting seat 607. Therefore, when the forward and reverse threaded screw 606 rotates, the distance between the two rubber-coated columns 608 can be adjusted. The operation is simple and convenient. During the reciprocating swing of the nozzle 515, when one side of it is in contact with the rubber-coated column 608, the tension spring 604 continues to pull, and the nozzle 515 can no longer rotate. This limits the swing amplitude of the nozzle 515. Through this simple mechanical limiting method, stepless adjustment of the swing amplitude of the nozzle 515 is achieved, thereby flexibly controlling the fan width of the liquid spray. This allows a single device to adapt to diverse operating scenarios such as the edges or central areas of rivers and lakes of different widths, significantly improving the versatility and environmental adaptability of the equipment. It achieves precise, efficient, and controllable spraying operations. Furthermore, the rubber coating on the surface of the rubber-coated column 608 effectively buffers collisions, reduces noise, and extends the service life of the equipment.

[0022] Please see Figure 2 and Figure 7 The lower end of the medicine storage tank 1 is inverted cone-shaped, and the lower part of the medicine storage tank 1 is provided with an anti-clogging component 7. The anti-clogging component 7 includes a support column 701. The support column 701 is symmetrically arranged at the bottom of the medicine storage tank 1, and the upper part of the support column 701 is rotatably connected to a roller 702. The top of the lifting plate 504 is provided with protrusions 703 at equal intervals around the circumference, and the bottom of the lifting plate 504 is fixed with a spring seat 704. The bottom of the spring seat 704 is provided with a rotating plate 705, and the rotating plate 705 is fixedly connected to the flexible filter screen 505, and the rotating plate 705 is rotatably connected to the medicine storage tank 1. The specific operation is as follows: During the mixing process of the medicine by the stirring shaft 503, the heavier drug particles will move towards the inner wall of the storage tank 1 due to centrifugal force, thereby reducing the clogging of the flexible filter screen 505. At the same time, when the stirring shaft 503 drives the lifting plate 504 to rotate synchronously, the spring seat 704 will push the lifting plate 504 under the limit of the rotating plate 705, so that its top abuts against the roller 702. Therefore, when the lifting plate 504 drives the protrusion 703 to fit against the roller 702 during the rotation, the lifting plate 504 will move down. When the protrusion 703 separates from the roller 702, the lifting plate 504 will move down again under the action of the spring seat 704. By using a downward-upward movement, the continuous rotational motion is converted into the up-and-down reciprocating motion of the lifting plate 504 through the periodic contact between the protrusion 703 and the roller 702 and the reset of the spring seat 704. This process automatically vibrates the flexible filter screen 505 at high frequency, which can efficiently shake off the particles attached to its surface. This automatic vibration mechanism realizes the self-cleaning of the flexible filter screen 505 and can effectively prevent the filter screen pores from being blocked, thereby ensuring the high throughput and flow stability of the liquid medicine in the long term. It not only avoids the impact of the decrease in flow rate on the spraying efficiency and spraying distance, ensuring the continuity and consistency of the algae suppression operation, but also reduces the frequency of manual maintenance and has high reliability.

[0023] In summary, the spraying device for this biological agent that inhibits cyanobacteria is used as follows: First, fix the mounting base 2 to the hull. Then, open the end cap on the top of the medicine storage tank 1, add biological agent granules and dilute with water. Next, switch the connection state of the three-way solenoid valve 514 through the controller so that its output end is connected to the inside of the medicine storage tank 1. Then, start the geared motor 502 to drive the stirring shaft 503 to rotate and stir and mix the medicine inside. During this process, the stirring shaft 503 synchronously drives the drive column 507 to make a circular motion inside the guide sleeve 508. The connecting rod 509 restricts the rotation of the guide sleeve 508. Therefore, the drive column 507 will be driven to make a reciprocating lifting motion through the groove inside the guide sleeve 508, thereby driving the piston. The piston plate 510 moves up and down within the sealing cover 511. When the piston plate 510 moves upward, a negative pressure is formed at its lower part. This negative pressure is created inside the stirring shaft 503 through the first one-way valve 506 located below the piston plate 510, which draws the liquid medicine in. When the piston plate 510 moves downward, the liquid medicine at its lower part is squeezed into the manifold 513 through the second one-way valve 512 located below the piston plate 510. The liquid medicine is then output to the upper part of the storage tank 1 through the three-way solenoid valve 514. Therefore, during stirring and mixing, the high concentration of medicine at the lower part is drawn to the upper part, breaking the concentration gradient, significantly improving the efficiency and uniformity of drug mixing, and shortening the preparation time. Next, during the mixing process, heavier drug particles will move towards the inner wall of the storage tank 1 due to centrifugal force, thereby reducing the clogging of the flexible filter screen 505. At the same time, when the stirring shaft 503 drives the lifting plate 504 to rotate synchronously, the spring seat 704 will push the lifting plate 504 under the limit of the rotating plate 705, so that its top abuts against the roller 702. Therefore, when the lifting plate 504 drives the protrusion 703 to stick to the roller 702 during the rotation, the lifting plate 504 will move down. When the protrusion 703 separates from the roller 702, the lifting plate 504 will move up under the action of the spring seat 704. Therefore, through the periodic contact between the protrusion 703 and the roller 702 and the reset of the spring seat 704, the continuous rotational motion is converted into the up-and-down reciprocating motion of the lifting plate 504. This process automatically vibrates the flexible filter screen 505 at high frequency, which can efficiently shake off the particles attached to its surface, ensuring high throughput and flow stability of the drug solution. Then, during application, the controller switches the output of the three-way solenoid valve 514 to the nozzle 515, allowing the liquid medicine to be sprayed out through the nozzle 515 to apply the medicine to the lake surface. Simultaneously, the piston plate 510 divides the sealed cover 511 into two chambers, and in conjunction with the upper and lower sets of first one-way valves 506 and second one-way valves 512, the piston plate 510 can drive the liquid medicine to move during its reciprocating motion, improving the continuity of spraying. During this process, the stirring shaft 503 also rotates, stirring the medicine inside the storage tank 1 to prevent drug sedimentation and stratification, thus avoiding fluctuations in spray concentration and ensuring the uniformity and stability of the inhibitory effect. At the same time, a flexible filter screen 505 covers the lower end of the stirring shaft 503, effectively intercepting undissolved drug particles or impurities and preventing them from entering the delivery pipeline and nozzle 515 and causing blockages. Finally, the guide sleeve 508 will also synchronously drive the slide rod 601 to perform reciprocating lifting and lowering movements. The slide rod 601 will then push the rotating ring 603 to rotate reciprocally through the groove in the guide plate 602. At this time, the rotating ring 603 will pull one end of the nozzle 515 through the tension spring 604, causing it to periodically swing around the upper end of the three-way solenoid valve 514, significantly expanding the coverage width of the spray. It can also rotate the positive and negative thread screw 606 as needed. Since the adjusting seat 607 is slidably connected to the top of the medicine storage tank 1, the rotation of the adjusting seat 607 will be restricted. Therefore, when the forward and reverse threaded screw 606 rotates, the distance between the two rubber-coated columns 608 can be adjusted. Thus, during the reciprocating swing of the nozzle 515, when one side of it is in contact with the rubber-coated column 608, the nozzle 515 can no longer rotate as the tension spring 604 continues to pull, limiting the swing amplitude of the nozzle 515. This allows for flexible control of the fan width of the liquid spray, enabling a single device to adapt to diverse operating scenarios such as the edges or central areas of rivers and lakes of different widths, significantly improving the versatility and environmental adaptability of the equipment.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A spraying device for a biological agent that inhibits cyanobacteria, characterized in that, The device includes a storage tank (1) and a spraying assembly (5). A mounting base (2) is fixed to the bottom of the storage tank (1), and a power supply box (3) is located at one end of the top of the mounting base (2). An observation window (4) is provided on the outside of the storage tank (1). The spraying assembly (5) is located on the upper part of the storage tank (1), and includes a motor base (501). The top of the storage tank (1) is fixed to the motor base (501), and a reduction motor (502) is mounted on the top of the motor base (501). The output end of the reduction motor (502) is connected to a stirring shaft (503), and a lifting plate (504) is slidably connected to the lower outer side of the stirring shaft (503). A flexible filter screen (505) is connected to the outer bottom surface of the lifting plate (504). A first check valve (506) is installed on the upper part of the shaft (503). A drive column (507) is fixed on the outer side of the upper end of the stirring shaft (503), and a guide sleeve (508) is slidably connected to the outer side of the drive column (507). A connecting rod (509) is fixed at the bottom of the guide sleeve (508), and a piston plate (510) is installed at the bottom of the connecting rod (509). A sealing cover (511) is slidably connected to the outer side of the piston plate (510), and a second check valve (512) is fixed on one side of the sealing cover (511). One end of the second check valve (512) is connected to a manifold (513), and a three-way solenoid valve (514) is installed at the top of the manifold (513). A nozzle (515) is rotatably connected to the top of the three-way solenoid valve (514).

2. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The inner groove of the guide sleeve (508) has a V-shaped structure with the ends connected, and the width of the inner groove of the guide sleeve (508) matches the diameter of the drive column (507).

3. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The connecting rod (509) is equidistantly distributed around the bottom of the guide sleeve (508), and the connecting rod (509) is slidably connected to the medicine storage tank (1) through a dynamic seal.

4. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The stirring shaft (503) is hollow and is slidably connected to the piston plate (510) through a dynamic seal, and is rotatably connected to the sealing cover (511) through a dynamic seal.

5. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The three-way solenoid valve (514) is connected to the inside of the medicine storage tank (1) through a pipe, and the medicine storage tank (1) is fixedly connected to the sealing cover (511).

6. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The top of the medicine storage tank (1) is provided with a steering assembly (6), and the steering assembly (6) includes a slide rod (601). The slide rod (601) is placed on one side of the guide sleeve (508), and a guide plate (602) is slidably connected to the outer side of one end of the slide rod (601). A rotating ring (603) is fixed on the top of the guide plate (602), and the rotating ring (603) is rotatably connected to the motor base (501). A tension spring (604) is fixed on one side of the rotating ring (603), and the tension spring (604) is fixedly connected to the nozzle (515).

7. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 6, characterized in that, The guide plate (602) is arc-shaped, and the inner groove of the guide plate (602) is inclined.

8. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 6, characterized in that, The top end of the medicine storage tank (1) is fixed with a support plate (605), and the upper part of the support plate (605) is rotatably connected with a threaded screw (606). An adjustment seat (607) is symmetrically arranged on the outer side of the threaded screw (606), and a rubber-coated column (608) is connected to the top of the adjustment seat (607).

9. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 1, characterized in that, The lower end of the medicine storage tank (1) is inverted cone-shaped, and the lower part of the medicine storage tank (1) is provided with an anti-blocking component (7). The anti-blocking component (7) includes a support column (701). The support column (701) is symmetrically arranged at the bottom of the medicine storage tank (1), and the upper part of the support column (701) is rotatably connected with a roller (702).

10. The spraying device for a biological agent for inhibiting cyanobacteria according to claim 9, characterized in that, The top of the lifting plate (504) is provided with protrusions (703) at equal intervals around the circumference, and the bottom of the lifting plate (504) is fixed with a spring seat (704). The bottom of the spring seat (704) is provided with a rotating plate (705), and the rotating plate (705) is fixedly connected to the flexible filter screen (505), and the rotating plate (705) is rotatably connected to the medicine storage tank (1).

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