A culture pond bacteria liquid rotary spraying device with reciprocating automatic liquid supplementing function

Abstract

The present application relates to the technical field of aquaculture pond bacteria liquid spraying equipment, and discloses an aquaculture pond bacteria liquid rotary spraying device with a reciprocating automatic liquid supplementing function, which comprises a stand, a transfer box, a rotatable spraying box, spraying pipes, a bacteria liquid tank, a moving mechanism and a butt joint piece; the moving mechanism drives the bacteria liquid tank to reciprocate between the edge of the pond and the transfer box; when the butt joint piece is connected, the second pipeline pushes away the rubber plug to realize liquid delivery; after the butt joint piece is separated, the hinged plate drives the rubber plug to reset by gravity; the transfer box and the spraying box form a two-stage temporary storage liquid supply structure; the spraying box rotates around the stand, and the spraying angle of each spraying pipe can be actively adjusted, so that the bacteria liquid landing points cover different circumferential and radial areas of the aquaculture pond.

Description

Technical Field

[0001] This invention relates to the field of aquaculture pond bacterial solution spraying equipment, specifically to a device that can automatically replenish bacterial solution and perform rotating coverage spraying from the edge of the aquaculture pond to the center. Background Technology

[0002] Shrimp larvae rearing is a crucial step in aquaculture, and the water quality in the rearing pond directly affects the survival rate and health of the larvae. During the rearing process, it is usually necessary to add probiotic solutions to the pond. These beneficial microorganisms decompose organic matter in the water, inhibit the growth of harmful microorganisms, and improve the aquatic environment.

[0003] Currently, bacterial solution application is mostly carried out by operators using handheld sprayers along the edge of the pool, or by using sprayers with a fixed spray direction. Manual spraying is labor-intensive, and the spraying position and amount are affected by the operator, making it difficult to ensure uniform distribution of bacterial solution in all areas of the pool. Fixed sprayers have a relatively limited range of application, which can easily lead to repeated spraying in localized areas or insufficient spraying in peripheral areas.

[0004] For large shrimp larvae rearing ponds, placing the spraying mechanism in the center of the pond is beneficial for shortening the spraying distance and enabling circumferential spraying. However, the center area is inconvenient for manual handling and replenishment of the bacterial solution. When the bacterial solution in the storage unit is insufficient, spraying usually needs to be stopped before replenishment, affecting continuous operation efficiency. Therefore, it is necessary to provide a spraying device that can cover different radial areas of the rearing pond and replenish the bacterial solution from the pond edge to the spraying mechanism in the center.

[0005] Chinese invention patent application CN101927224A, published on December 29, 2010, discloses an automatic elevation angle adjustable variable spray nozzle, which can change the nozzle elevation angle during rotational spraying to adjust the spray range. Chinese invention patent application CN101862716A, published on October 20, 2010, discloses a backflush rotor rotary nozzle, which can adjust the range and spray angle. These technologies mainly address the adjustment of the nozzle's rotation, elevation angle, or range, but do not solve the problem of replenishing the bacterial solution from the pool edge using a spraying mechanism located in the center of the aquaculture pond, or maintaining the solution supply during replenishment.

[0006] Chinese invention patent application CN112913755A, published on June 8, 2021, discloses an automatic feeding device for aquaculture ponds, which uses a rotating feeding mechanism set above the water surface of the aquaculture pond to scatter materials. This technology focuses on the rotating delivery of feed and other materials, and does not disclose the technical solution of automatically connecting the reciprocating bacterial liquid tank to the central rotating tank in the pond, automatically sealing it by gravity after separation, and reducing the interruption of liquid replenishment through a two-stage temporary liquid supply structure. Summary of the Invention

[0007] The purpose of this invention is to provide a rotary spraying device for aquaculture ponds with a reciprocating automatic replenishment function, so as to improve the problems of existing bacterial liquid spraying equipment, such as limited spraying range, insufficient uniformity of bacterial liquid distribution, inconvenience of replenishment of the spraying mechanism in the center of the pond, and easy interruption of spraying during the replenishment process.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A rotary spraying device for aquaculture ponds with reciprocating automatic replenishment function includes a column, a transfer box, a spray box, multiple spray pipes, a rotary drive mechanism, an angle adjustment mechanism, a bacterial solution tank, a moving mechanism, and a docking component. The column is positioned in the center of the aquaculture pond. The transfer box is fixedly mounted on the column. The spray box is rotatably mounted on the column and located above the transfer box. The transfer box and the spray box are connected via a third pipe equipped with a first water pump. The inlet end of the third pipe is fluidly connected to the transfer box via a rotary sealing joint. A second water pump is installed inside the spray box, and its outlet end is connected to the corresponding spray pipe via a flexible hose. Multiple spray pipes are spaced apart circumferentially around the spray box and rotatably connected to it. The rotary drive mechanism is used to drive the spray box. The spray box rotates around the column, and the angle adjustment mechanism is used to actively adjust the spray angle of each spray pipe; the moving mechanism is used to drive the bacterial solution tank to move back and forth between the pool side and the transfer box; the docking part includes a first pipe set in the bacterial solution tank, a second pipe set in the transfer box in an L-shape, a hinge plate rotatably set on the inner wall of the bacterial solution tank, and a rubber stopper set on the hinge plate; when the bacterial solution tank moves to the transfer box, the second pipe inserts into the first pipe and pushes against the rubber stopper, so that the bacterial solution tank and the transfer box are connected; when the bacterial solution tank separates from the transfer box, the hinge plate resets under the action of gravity and drives the rubber stopper to re-close the first pipe; the transfer box and the spray box constitute a two-stage temporary liquid supply structure, so that the temporarily stored bacterial solution can continue to supply liquid to the spray pipe during the process of the bacterial solution tank returning to the pool side and being refilled with bacterial solution.

[0009] Furthermore, the moving mechanism includes a moving guide rail, which is fixedly installed between the transfer box and the edge of the breeding pond, and a sliding groove is provided on the inner side of the moving guide rail; a sliding rod is fixedly installed at the bottom of the bacterial liquid tank, and the two ends of the sliding rod are respectively slidably installed in the corresponding sliding grooves, and the bottom of the bacterial liquid tank is supported on the moving guide rail.

[0010] Furthermore, the moving mechanism also includes two winches and a wire rope. The two winches are respectively located on one side of the transfer box and the pool side of the moving guide rail. The two ends of the wire rope are wound on the two winches respectively, and the middle of the wire rope is fixedly connected to the slide bar.

[0011] In the above technical solution, the connecting component includes a first pipe, a second pipe, a hinge plate, and a rubber plug; the first pipe passes through the side wall of the bacterial culture tank facing the transfer box and is located near the bottom of the bacterial culture tank; the second pipe is L-shaped, with its transverse section passing through the outer wall of the transfer box and used to insert into the first pipe; the upper end of the hinge plate is rotatably mounted on the inner wall of the bacterial culture tank, and the rubber plug is fixedly mounted on the hinge plate and faces the first pipe; when the second pipe is inserted into the first pipe, it pushes against the rubber plug, causing the rubber plug to exit the first pipe; after the second pipe exits the first pipe, the hinge plate resets under the action of gravity and drives the rubber plug to re-insert into the first pipe.

[0012] In the above technical solution, the first water pump is used to transport the bacterial solution in the transfer box to the spray box; the outlet of the second water pump is connected to the corresponding spray pipe through a hose; the transfer box and the spray box constitute a two-stage temporary storage and supply structure, so that when the bacterial solution tank returns to the pool side and is refilled with bacterial solution, the bacterial solution temporarily stored in the transfer box and the spray box can continue to supply liquid to the spray pipe.

[0013] Furthermore, the transfer box is ring-shaped and surrounds the column; the bottoms of both the spray box and the transfer box protrude downwards, and the bottom of the bacterial solution box slopes downwards toward the side where the first pipe is located.

[0014] Furthermore, the top of the spray box has mounting notches corresponding to multiple spray pipes; the angle adjustment mechanism includes drive motors corresponding to multiple spray pipes, each drive motor being connected to the corresponding spray pipe to actively adjust the spray angle of the spray pipe.

[0015] The present invention has at least the following beneficial effects: 1. The spray box drives multiple spray pipes to rotate around the center of the pond, and the multiple spray pipes spray in a circumferential manner at the same time; the drive motor actively changes the spray angle of the spray pipes so that the bacterial liquid falls on different radial areas of the aquaculture pond, which helps to improve the coverage and uniformity of the spraying of the entire pond.

[0016] 2. The bacterial solution tank can move back and forth between the pool edge and the pool center area along the moving guide rail. Operators can fill the bacterial solution at the pool edge and the moving mechanism will transport the bacterial solution to the transfer tank, reducing the difficulty of replenishing the solution in the pool center area.

[0017] 3. When the second pipe is inserted into the first pipe, it can push open the rubber stopper and automatically connect the bacterial culture tank and the transfer tank; after the second pipe is withdrawn, the hinge plate drives the rubber stopper to reset under the action of gravity, thereby reducing leakage during the movement of the bacterial culture tank.

[0018] 4. The transfer box and the spray box form a two-stage liquid supply structure. During the replenishment of the bacterial liquid tank, the spray box can continue to supply liquid to the spray pipe, which helps to reduce spraying interruptions caused by replenishment and improves continuous operation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the spraying device of the present invention installed in an aquaculture pond; Figure 2 This is a schematic diagram of the structure of the spray box, spray pipe and moving mechanism of the present invention; Figure 3 This is a schematic diagram of the internal liquid supply structure and angle adjustment mechanism of the spray box of the present invention; Figure 4 This is a cross-sectional view of the docking position between the bacterial culture tank and the transfer box of the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the overall structure of the moving mechanism of the present invention; Figure 7 for Figure 6 A magnified structural diagram at point B in the middle.

[0020] Reference numerals: 1. Aquaculture pond; 2. Column; 3. Transfer box; 4. Spray box; 5. Spray pipe; 6. Bacterial solution tank; 7. Moving mechanism; 71. Moving guide rail; 72. Slide bar; 73. Winch; 74. Wire rope; 8. Connecting part; 81. First pipe; 82. Second pipe; 83. Hinge plate; 84. Rubber plug; 9. Sliding groove; 10. Third pipe; 11. First water pump; 12. Installation notch; 13. Drive motor; 14. Second water pump; 15. Hose. Detailed Implementation

[0021] The embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention; where there is no conflict, the technical features of each embodiment can be combined with each other.

[0022] Reference Figures 1 to 3 This embodiment provides a rotary spraying device for aquaculture ponds with reciprocating automatic liquid replenishment function. A column 2 is vertically positioned in the center of the aquaculture pond 1. A transfer box 3 is fixedly mounted on the column 2, and a spray box 4 is rotatably mounted on the column 2 and located above the transfer box 3. The transfer box 3 is annular and surrounds the column 2, ensuring that the transfer box 3 does not interfere with the rotation of the spray box 4 when it rotates around the column 2.

[0023] The transfer box 3 and the spray box 4 are connected by a third pipe 10. The third pipe 10 is a rigid pipe, with its inlet end connected to the fixed transfer box 3 via a rotary sealing joint, and its outlet end connected to the spray box 4. The fixed end of the rotary sealing joint is connected to the transfer box 3, and the rotating end is connected to the third pipe 10, so as to maintain a sealed liquid supply when the spray box 4 drives the third pipe 10 to rotate. A first water pump 11 is installed on the third pipe 10 to transport the bacterial solution in the transfer box 3 to the spray box 4. A second water pump 14 is installed in the spray box 4, and the outlet end of the second water pump 14 is connected to each spray pipe 5 via a hose 15.

[0024] Under the conditions of set head and the same bacterial solution medium, the actual delivery flow rate of the first water pump 11 is greater than the actual total spraying flow rate of the second water pump 14, so that the spray box 4 establishes a temporary storage volume during the replenishment stage. The sum of the effective temporary storage volumes of the transfer box 3 and the spray box 4 is not less than the product of the actual total spraying flow rate of the second water pump 14 and the longest time required for the bacterial solution tank 6 to return to the pool side, refill, and reconnect, with a safety margin of not less than 10%.

[0025] The rotary drive mechanism includes a servo motor mounted on top of the column 2. The output shaft of the servo motor extends along the axial direction of the column 2, and the spray box 4 is connected to the output shaft of the servo motor. When the servo motor is running, it drives the spray box 4 to rotate around the column 2, causing multiple spray pipes 5 mounted around the spray box 4 to sequentially sweep across different circumferential areas of the aquaculture pond 1.

[0026] The top of the spray box 4 has mounting notches 12 corresponding to multiple spray pipes 5. Each spray pipe 5 is rotatably mounted in its corresponding mounting notch 12 via a rotating shaft. The angle adjustment mechanism includes drive motors 13 corresponding to multiple spray pipes 5. Each drive motor 13 is located on one side of its corresponding mounting notch 12 and is connected to the rotating shaft of its corresponding spray pipe 5. When the drive motor 13 rotates forward or backward, it drives the corresponding spray pipe 5 to pitch within a preset angle range. After the drive motor 13 stops, it maintains the current spray angle of the spray pipe 5. In actual use, multiple spray angles are predetermined based on the diameter of the aquaculture pond 1, the installation height of the spray pipes 5, and the working pressure of the second water pump 14, so that the bacterial liquid landing points corresponding to different spray angles cover different radial areas of the aquaculture pond 1. During spraying, the spray box 4 rotates circumferentially, while each drive motor 13 adjusts the spray angle of its corresponding spray pipe 5 according to a preset spraying sequence to implement circular or spiral coverage spraying.

[0027] It should be noted that the radius of the bacterial solution landing point is determined by the spray angle, spray pressure, installation height of the spray pipe 5, and the flow state of the bacterial solution. Therefore, this embodiment pre-calibrates the correspondence between the spray angle and the bacterial solution landing area based on the actual installation and operating parameters of the device, rather than limiting the spray angle and spraying distance to a monotonically changing relationship across the entire angle range.

[0028] A set of feasible spraying calibration conditions are as follows: the inner diameter of the outlet of spray pipe 5 is 6-10 mm, the height of the nozzle from the water surface of the aquaculture pond is 0.8-1.5 m, and the bacterial solution density is 1.00-1.05 g / cm³. 3 The dynamic viscosity is 1.0-5.0 mPa·s, and the actual working flow rate of a single spray pipe 5 is 8-15 L / min. Under the above conditions, the radius of the bacterial liquid landing point and the width of the coverage zone corresponding to each preset spray angle are recorded to form a calibration correspondence table between the spray angle and the radial landing point area; in actual use, the calibration results are corrected according to the size of the aquaculture pond 1 and the on-site working parameters.

[0029] Reference Figures 4 to 7 The moving mechanism 7 includes a moving guide rail 71, a sliding rod 72, two winches 73, and a wire rope 74. The moving guide rail 71 is fixedly installed between the edge of the aquaculture pond 1 and the transfer box 3, and a sliding groove 9 is formed on the inner side of the moving guide rail 71. The sliding rod 72 is fixedly installed at the bottom of the bacterial solution tank 6, and both ends of the sliding rod 72 extend into the corresponding sliding grooves 9 and can move along the sliding grooves 9. The bottom of the bacterial solution tank 6 is supported by the top of the moving guide rail 71. Thus, the moving guide rail 71 supports and guides the bacterial solution tank 6, allowing the bacterial solution tank 6 to move along a predetermined path between the edge and the center of the pond. Furthermore, the moving guide rail 71 is a rigid guide rail, which reduces the possibility of the bacterial solution tank 6 shaking during the transfer process.

[0030] Two winches 73 are respectively located on one side of the transfer box 3 and at the pool edge of the moving guide rail 71. Both ends of the wire rope 74 are wound onto the two winches 73, and the middle of the wire rope 74 is fixedly connected to the slide bar 72. When the winch 73 at the pool center end winds up while the winch 73 at the pool edge end winds down simultaneously, the wire rope 74 drives the bacterial solution tank 6 towards the transfer box 3; when the winch 73 at the pool edge end winds up while the winch 73 at the pool center end winds down simultaneously, the wire rope 74 drives the bacterial solution tank 6 back to the pool edge. The winding and unwinding speeds of the two winches 73 are coordinated to maintain the wire rope 74 under tension.

[0031] Reference Figure 4 and Figure 5The connecting component 8 includes a first pipe 81, a second pipe 82, a hinge plate 83, and a rubber stopper 84. The first pipe 81 is horizontally inserted through the side wall of the bacterial culture tank 6 facing the transfer tank 3 and close to the bottom of the bacterial culture tank 6. The second pipe 82 is L-shaped, with its horizontal section inserted through the outer wall of the transfer tank 3 and extending towards the direction of the bacterial culture tank 6, and its vertical section facing the bottom of the transfer tank 3.

[0032] The upper end of the hinge plate 83 is rotatably mounted on the inner wall of the bacterial culture tank 6, and the rubber stopper 84 is fixedly mounted on the hinge plate 83 facing the first pipe 81. When the bacterial culture tank 6 is not connected to the transfer box 3, the hinge plate 83 remains in the sealed position under gravity, and the rubber stopper 84 is inserted into the first pipe 81 and seals it. When the bacterial culture tank 6 moves along the moving guide rail 71 to the transfer box 3, the transverse section of the second pipe 82 inserts into the first pipe 81 and pushes against the rubber stopper 84, causing the hinge plate 83 to rotate inward into the bacterial culture tank 6, and the rubber stopper 84 to exit the first pipe 81, thereby connecting the bacterial culture tank 6 with the transfer box 3 through the first pipe 81 and the second pipe 82. The bacterial culture in the bacterial culture tank 6 flows into the transfer box 3 under gravity.

[0033] After the bacterial solution transfer is completed, the moving mechanism 7 drives the bacterial solution tank 6 to move towards the pool edge, and the second pipe 82 gradually exits the first pipe 81. The hinge plate 83 returns to its sealed position under gravity, and drives the rubber stopper 84 to re-insert into the first pipe 81, reducing leakage during the return of the bacterial solution tank 6 to the pool edge. The rotation axis of the hinge plate 83 is located above the rubber stopper 84, allowing the hinge plate 83 to use its own gravity to drive the rubber stopper 84 to return to its original position. Furthermore, the open end face of the first pipe 81 is concave inwards, forming an inverted cone, and the end of the second pipe 82 is conical, facilitating the insertion of the second pipe 82 into the first pipe 81.

[0034] To improve the sealing reliability of automatic docking, the docking end of the first pipe 81 is provided with a tapered guide port and an annular elastic sealing part. The insertion section of the second pipe 82 forms a radial sealing fit with the annular elastic sealing part. The insertion fit length is not less than 15mm, and the radial interference of the elastic sealing part with the second pipe 82 is 0.3-0.8mm. The tapered guide port allows for an initial deviation of no more than 2mm between the docking axes of the two pipes to reduce the risk of jamming and leakage during reciprocating docking.

[0035] The bottoms of both the spray box 4 and the transfer box 3 bulge downwards, forming an arc-shaped or conical confluence surface, allowing the bacterial solution to converge towards the corresponding water pump's intake area under gravity. The bottom of the bacterial solution tank 6 slopes downwards towards the side where the first pipe 81 is located, causing the bacterial solution to converge towards the first pipe 81, thereby reducing bacterial solution residue in each tank.

[0036] When this device is in operation, probiotic solution is first added to the bacterial solution tank 6 at the edge of the aquaculture pond 1. The moving mechanism 7 drives the bacterial solution tank 6 to move towards the center of the pond, causing the second pipe 82 to insert into the first pipe 81 and push open the rubber stopper 84, allowing the bacterial solution to enter the transfer tank 3 from the bacterial solution tank 6. The first water pump 11 transports the bacterial solution in the transfer tank 3 to the spray tank 4, and the second water pump 14 pressurizes the bacterial solution before spraying it out through the hose 15 and the spray pipe 5. The rotation drive mechanism drives the spray tank 4 to rotate, and the angle adjustment mechanism actively changes the spray angle of the spray pipe 5, so that the bacterial solution falls on different circumferential and radial areas of the aquaculture pond 1 in sequence. After replenishment, the bacterial solution tank 6 returns to the edge of the pond, the rubber stopper 84 resets, and the first pipe 81 is sealed. The bacterial solution temporarily stored in the transfer tank 3 and the spray tank 4 can continue to supply solution to the spray pipe 5 during the return and refilling of the bacterial solution tank 6, thereby reducing the impact of replenishment on the continuity of the spraying operation.

Claims

1. A rotary spraying device for aquaculture ponds with reciprocating automatic replenishment function, characterized in that: The system includes a column (2), a transfer box (3), a spray box (4), multiple spray pipes (5), a rotary drive mechanism, an angle adjustment mechanism, a bacterial liquid tank (6), a moving mechanism (7), and a docking part (8). The column (2) is used to be set in the center area of ​​the aquaculture pond (1). The transfer box (3) is fixedly set on the column (2). The spray box (4) is rotatably set on the column (2) and located above the transfer box (3). The transfer box (3) and the spray box (4) are connected by a third pipe (10). The inlet end of the third pipe (10) is fluidly connected to the transfer box (3) through a rotary sealing joint so that the third pipe (10) can move with the spray box (4). Rotate and maintain a sealed liquid supply. The third pipe (10) is equipped with a first water pump (11) for transporting the bacterial solution in the transfer box (3) to the spray box (4). The spray box (4) is equipped with a second water pump (14). The outlet of the second water pump (14) is connected to the corresponding spray pipe (5) through a hose (15). Multiple spray pipes (5) are arranged at intervals along the circumference of the spray box (4) and are rotatably connected to the spray box (4). The rotation drive mechanism is used to drive the spray box (4) to rotate around the column (2). The angle adjustment mechanism is used to actively adjust the spray angle of each spray pipe (5) relative to the horizontal plane so that the bacterial solution sprayed from each spray pipe (5) lands at a certain point. The moving mechanism (7) is located between the edge of the aquaculture pond (1) and the column (2) to drive the bacterial culture tank (6) to reciprocate between the edge of the pond and the transfer box (3); the connecting part (8) includes a first pipe (81), a second pipe (82), a hinge plate (83) and a rubber plug (84). The first pipe (81) passes through the side wall of the bacterial culture tank (6) facing the transfer box (3) and is located near the bottom of the bacterial culture tank (6). The horizontal section of the L-shaped second pipe (82) passes through the outer wall of the transfer box (3) and is located towards the first pipe (81). The upper end of the hinge plate (83) rotates. The rubber stopper (84) is fixedly mounted on the hinge plate (83) and faces the first pipe (81) on the inner wall of the bacterial culture tank (6). When the bacterial culture tank (6) moves to the transfer box (3), the second pipe (82) is inserted into the first pipe (81) and pushes against the rubber stopper (84), causing the rubber stopper (84) to exit the first pipe (81), thereby connecting the bacterial culture tank (6) with the transfer box (3). When the bacterial culture tank (6) separates from the transfer box (3), the second pipe (82) exits the first pipe (81), and the hinge plate (83) resets under gravity and drives the rubber stopper (84) to re-insert into the first pipe (81).The transfer box (3) and the spray box (4) constitute a two-stage temporary liquid supply structure, so that the liquid temporarily stored in the transfer box (3) and the spray box (4) can continue to supply liquid to the spray pipe (5) during the process of the bacterial liquid tank (6) returning to the pool side and being refilled with bacterial liquid.

2. The aquaculture pond bacterial liquid rotary spraying device with reciprocating automatic liquid replenishment function according to claim 1, characterized in that: The moving mechanism (7) includes a moving guide rail (71), a sliding rod (72), two winches (73), and a steel wire rope (74) fixedly installed between the transfer box (3) and the edge of the breeding pond (1). The moving guide rail (71) has a sliding groove (9) on its inner side. The sliding rod (72) is fixedly installed at the bottom of the bacterial liquid tank (6). The two ends of the sliding rod (72) are respectively slidably installed in the corresponding sliding groove (9). The bottom of the bacterial liquid tank (6) is supported on the moving guide rail (71). The two winches (73) are respectively installed on one side of the transfer box (3) and at the edge of the moving guide rail (71). The two ends of the steel wire rope (74) are respectively wound on the two winches (73). The middle part of the steel wire rope (74) is fixedly connected to the sliding rod (72) so as to drive the bacterial liquid tank (6) to move back and forth by the alternating winding of the two winches (73).

3. The aquaculture pond bacterial liquid rotary spraying device with reciprocating automatic liquid replenishment function according to claim 1, characterized in that: The transfer box (3) is ring-shaped and surrounds the column (2). The inlet end of the third pipe (10) is close to the bottom of the transfer box (3). The bottom of the spray box (4) and the transfer box (3) both protrude downwards so that the bacterial liquid gathers in the liquid collection area at the bottom of the corresponding box. The bottom of the bacterial liquid box (6) is inclined downwards towards the side where the first pipe (81) is located.

4. The aquaculture pond bacterial liquid rotary spraying device with reciprocating automatic liquid replenishment function according to claim 1, characterized in that: The top of the spray box (4) is provided with an installation notch (12) corresponding to each of the multiple spray pipes (5); the angle adjustment mechanism includes a drive motor (13) corresponding to each of the multiple spray pipes (5), each drive motor (13) is respectively set on one side of the corresponding installation notch (12) and connected to the corresponding spray pipe (5) for driving the corresponding spray pipe (5) to rotate within a preset angle range according to the preset spraying sequence.

5. A method for spraying probiotic liquid using the apparatus described in any one of claims 1 to 4, characterized in that: Includes the following steps: Bacterial solution is loaded into the bacterial solution tank (6) at the edge of the breeding pond (1). The bacterial solution tank (6) is driven to move towards the transfer box (3) by the moving mechanism (7), so that the second pipe (82) is inserted into the first pipe (81) and pushes against the rubber stopper (84), so that the bacterial solution tank (6) is connected to the transfer box (3) and the bacterial solution is input into the transfer box (3). The bacterial solution in the transfer box (3) is transported to the spray box (4) by the first water pump (11), and the bacterial solution in the spray box (4) is transported to multiple spray pipes (5) by the second water pump (14). The spray box (4) is driven to rotate around the column (2) by the rotation drive mechanism, and the angle adjustment mechanism is adjusted according to the preset angle. The spraying sequence actively adjusts the spraying angle of each spray pipe (5) so that the bacterial liquid falls in sequence to cover different circumferential and radial areas of the breeding pond (1); after the bacterial liquid in the bacterial liquid tank (6) is transferred, the bacterial liquid tank (6) is driven back to the side of the pond by the moving mechanism (7), so that the second pipe (82) exits the first pipe (81) and the hinge plate (83) is reset under the action of gravity, so as to drive the rubber stopper (84) to re-insert into the first pipe (81); during the process of the bacterial liquid tank (6) returning to the side of the pond and refilling the bacterial liquid, the bacterial liquid temporarily stored in the transfer box (3) and the spray box (4) continues to supply liquid to the spray pipe (5).

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