Device and method for efficiently returning liquid manure to field

Abstract

The device comprises a vehicle body, a fertilizer box is fixedly connected to the vehicle body, a liquid adding opening is formed in the fertilizer box, and a first filter plate is fixedly connected to the interior of the fertilizer box; the spraying assembly comprises a conveying pump and a plurality of transfer bottles, liquid outlets are formed in the transfer bottles and located in the tops of the transfer bottles, second filter plates are fixedly connected into the transfer bottles, the liquid outlets communicate with adjustable spraying mechanisms, the transfer bottles are arranged on the first fixing plate through elastic connecting mechanisms, and two supporting plates are fixedly connected to the second fixing plate. A motor is fixedly connected to the supporting plates, a bottle bottom turnover mechanism is arranged between the two supporting plates, and the bottle bottom turnover mechanism corresponds to the transfer bottle; the controller is fixedly connected to the outer side wall of the fertilizer box. According to the liquid manure spraying device, liquid manure can be sprayed more uniformly, the problem of surface runoff pollution is avoided, meanwhile, impurities can be filtered, the blocking condition is reduced, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of liquid manure application equipment, and in particular to a highly efficient liquid manure return device and method. Background Technology

[0002] With the deepening of my country's green and sustainable agricultural development strategy, the resource utilization of large amounts of liquid manure generated by livestock and poultry farming has received increasing attention. As a natural fertilizer rich in organic matter and nutrients such as nitrogen, phosphorus, and potassium, liquid manure, if applied to the field scientifically and efficiently, can not only effectively replace some chemical fertilizers and reduce agricultural production costs, but also improve soil structure and enhance the quality of arable land.

[0003] Traditional methods of returning fertilizer to the field often involve direct irrigation using simple tank trucks or flood irrigation through ditches, which can lead to uneven fertilization and surface runoff pollution. Currently, most liquid manure returning devices on the market are modified from ordinary liquid fertilizer spreaders. However, liquid manure contains many impurities and is prone to sedimentation, which can cause blockages and low operating efficiency.

[0004] To address these issues, a highly efficient liquid manure return device and method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient liquid manure return device and method to solve the problems existing in the prior art, improve the uniformity of liquid manure application, and solve the problem of easy clogging during manure spraying.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a high-efficiency liquid manure returning device, comprising:

[0007] The vehicle body has a fertilizer tank fixedly connected to it, the fertilizer tank has a liquid filling port, and a first filter plate is fixedly connected inside the fertilizer tank, which divides the fertilizer tank into a raw liquid chamber and a filter chamber.

[0008] A spraying assembly includes a delivery pump and several transfer bottles. The inlet of the delivery pump is connected to the filter chamber, and the outlet of the delivery pump is connected to the transfer bottles. Each transfer bottle has a drain port located at its top. A second filter plate is fixedly connected inside the transfer bottle. The drain port is connected to an adjustable spraying mechanism. A first fixing plate and a second fixing plate are fixedly connected to the vehicle body. The transfer bottles are mounted on the first fixing plate via an elastic connection mechanism. Two support plates are fixedly connected to the second fixing plate, and a motor is fixedly connected to the support plates. A flip-bottom mechanism is provided between the two support plates, and the flip-bottom mechanism corresponds to the transfer bottle.

[0009] The controller is fixedly connected to the outer wall of the fertilizer tank, and the delivery pump and the motor are both electrically connected to the controller.

[0010] Preferably, the transfer bottle includes a straight section and an extended section, the straight section and the extended section are fixedly connected, the extended section is located below the straight section, the straight section has a liquid inlet, the liquid inlet is fixedly connected to a rigid pipe connector, the liquid outlet of the delivery pump is connected to the rigid pipe connector, the second filter plate is located above the liquid inlet, the liquid outlet is opened at the top of the straight section, and the extended section is correspondingly arranged with the flip-top bottle bottom mechanism.

[0011] Preferably, the bottle bottom flipping mechanism includes a rotating cylinder with a plurality of first through holes arranged in two rows. A bottle bottom is fixedly connected to each of the first through holes. The bottle bottom is adapted to the extension section. The rotating cylinder is rotatably connected between the two support plates. The motor is drivenly connected to the rotating cylinder.

[0012] Preferably, baffles are fixedly connected to both ends of the rotating cylinder, the baffles are rotatably connected to a rotating shaft, the rotating shaft is rotatably connected to two support plates, the drive shaft of the motor is fixedly connected to the rotating shaft, and a plurality of connecting rods are fixedly connected between the rotating shaft and the rotating cylinder.

[0013] Preferably, the elastic connection mechanism includes a mounting plate, a second through hole is provided on the mounting plate, a guide tube is fixedly connected in the second through hole, the straight section is slidably disposed in the guide tube, a base plate is fixedly connected on the straight section, and a spring is fixedly connected between the base plate and the mounting plate.

[0014] Preferably, the adjustable spraying mechanism includes a flat nozzle, a curved pipe connected to the drain port, the flat nozzle being connected to the curved pipe, an arc-shaped plate inside the flat nozzle, the arc-shaped plate being fixedly connected to the inside of the flat nozzle by a rubber plate, two third through holes being opened on the flat nozzle, two guide rods being fixedly connected to the arc-shaped plate, the guide rods passing through the third through holes, a movable plate being fixedly connected to the guide rods, and an electric telescopic rod being installed between the movable plate and the flat nozzle, the electric telescopic rod being electrically connected to the controller.

[0015] Preferably, a third fixing plate is fixedly connected to the side wall of the fertilizer tank, the delivery pump is fixedly connected to the third fixing plate, the inlet end of the delivery pump is connected to a first delivery pipe, the first delivery pipe extends into the filter chamber, the outlet end of the delivery pump is connected to a second delivery pipe, a transfer pipe is fixedly connected to the side wall of the fertilizer tank, the second delivery pipe is connected to the transfer pipe, a plurality of first branch pipes are connected to the transfer pipe, a first solenoid valve is installed on the first branch pipe, the first solenoid valve is electrically connected to the controller, and the first branch pipe is connected to the rigid pipe joint through a flexible hose.

[0016] Preferably, a fourth fixing plate is fixedly connected to the first fixing plate, and an air pump is fixedly connected to the fourth fixing plate. The air pump is connected to the first branch pipe through a second branch pipe, and a second solenoid valve is installed on the second branch pipe. The second solenoid valve is connected to the controller.

[0017] Preferably, a concave rubber ring is fixedly connected to the extension section, and a convex rubber ring is fixedly connected to the bottom of the bottle. The concave rubber ring and the convex rubber ring are compatible with each other. A top plate is detachably connected to the fertilizer box, and the liquid filling port is opened on the top plate.

[0018] A method for efficiently returning liquid manure to the field includes the following steps:

[0019] The liquid manure is poured into the fertilizer tank through the inlet. The liquid manure enters the raw liquid chamber and then enters the filter chamber after passing through the first filter plate.

[0020] The delivery pump is started by the controller, which pumps the filtered liquid manure to the transfer bottle. The liquid manure flows out from the drain port of the transfer bottle. Since the drain port is located at the top of the transfer bottle, larger or heavier particles in the liquid manure will settle downwards and fall into the flip-bottom mechanism as it flows towards the drain port.

[0021] When there are a lot of large or heavy particles in the reversible bottle bottom mechanism, the controller starts the motor, which drives the reversible bottle bottom mechanism to flip, thereby preventing large or heavy particles from accumulating in the transfer bottle.

[0022] This invention discloses the following technical effects: In this device, the liquid inlet is connected to the original liquid chamber. Liquid manure is poured into the original liquid chamber through the liquid inlet. The first filter plate can filter the liquid manure. The filtered liquid manure enters the filter chamber. The transfer pump pumps the filtered liquid manure into the transfer bottle. Since the drain outlet is located at the top of the transfer bottle, the liquid manure needs to flow upwards after entering the transfer bottle to flow out from the drain outlet. Therefore, larger or heavier particles in the liquid manure will sink downwards, and the larger or heavier particles fall into the reversible... Inside the bottle bottom mechanism, a second filter plate provides a second filtration of the liquid manure, preventing clogging. The adjustable spraying mechanism allows for control over the spraying speed, making it more convenient to use. When there are many impurities inside the tilting bottle bottom mechanism, the motor can drive it to tilt and empty all the impurities. During rotation, the transfer bottle can move slightly due to the elastic connecting mechanism, facilitating the tilting of the mechanism. The controller controls the delivery pump and motor, further enhancing ease of use. This invention enables more uniform spraying of liquid manure, avoiding surface runoff pollution, and also filters impurities, reducing clogging and improving operational efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the high-efficiency liquid manure returning device of the present invention;

[0025] Figure 2 This is an enlarged schematic diagram of the rotating bottle and rotating cylinder in this invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of point a in the middle;

[0027] Figure 4 This is a schematic diagram of the left side of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point b in the middle;

[0029] Figure 6 This is a front view of the flat nozzle of the present invention;

[0030] Figure 7 This is a front sectional view of the flat nozzle of the present invention;

[0031] Figure 8 This is a side sectional view of the flat nozzle of the present invention;

[0032] The components include: 1. Vehicle body; 2. Fertilizer tank; 3. Liquid filling port; 4. First filter plate; 5. Raw liquid chamber; 6. Filter chamber; 7. Transfer pump; 8. Transfer bottle; 9. Drain port; 10. Second filter plate; 11. First fixing plate; 12. Second fixing plate; 13. Support plate; 14. Motor; 15. Controller; 16. Straight section; 17. Extension section; 18. Rigid pipe connector; 19. Rotating cylinder; 20. Bottle bottom; 21. Baffle; 22. Rotating shaft; 23. Connecting rod; 24. Mounting plate; 25. Guide tube; 6. Base plate; 27. Spring; 28. Flat nozzle; 29. ​​Bend; 30. Arc plate; 31. Rubber plate; 32. Guide rod; 33. Moving plate; 34. Electric telescopic rod; 35. Third fixed plate; 36. First delivery pipe; 37. Second delivery pipe; 38. Transfer pipe; 39. First branch pipe; 40. First solenoid valve; 41. Hose; 42. Fourth fixed plate; 43. Air pump; 44. Second branch pipe; 45. Second solenoid valve; 46. Concave rubber ring; 47. Convex rubber ring; 48. Top plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figure 1-8 This invention provides a high-efficiency liquid manure returning device, comprising:

[0036] Vehicle body 1, fertilizer tank 2 is fixedly connected to vehicle body 1, fertilizer tank 2 is provided with liquid inlet 3, first filter plate 4 is fixedly connected inside fertilizer tank 2, first filter plate 4 divides fertilizer tank 2 into original liquid chamber 5 and filter chamber 6.

[0037] The spraying assembly includes a delivery pump 7 and several transfer bottles 8. The inlet end of the delivery pump 7 is connected to the filter chamber 6, and the outlet end of the delivery pump 7 is connected to the transfer bottles 8. A drain port 9 is provided on the transfer bottle 8 and is located at the top of the transfer bottle 8. A second filter plate 10 is fixedly connected inside the transfer bottle 8. An adjustable spraying mechanism is connected to the drain port 9. A first fixed plate 11 and a second fixed plate 12 are fixedly connected to the vehicle body 1. The transfer bottle 8 is set on the first fixed plate 11 through an elastic connection mechanism. Two support plates 13 are fixedly connected to the second fixed plate 12. A motor 14 is fixedly connected to the support plate 13. A flip-bottom mechanism is provided between the two support plates 13 and is correspondingly set to the transfer bottle 8.

[0038] The controller 15 is fixedly connected to the outer wall of the fertilizer box 2. The delivery pump 7 and the motor 14 are both electrically connected to the controller 15.

[0039] In this device, the vehicle body 1 is towed by agricultural equipment, facilitating the movement of the device. The liquid inlet 3 is connected to the original liquid chamber 5. Liquid manure is poured into the original liquid chamber 5 through the liquid inlet 3. The first filter plate 4 filters the liquid manure. The filtered liquid manure enters the filter chamber 6. The transfer pump 7 pumps the filtered liquid manure into the transfer bottle 8. Since the drain outlet 9 is located at the top of the transfer bottle 8, the liquid manure needs to flow upwards to flow out from the drain outlet 9 after entering the transfer bottle 8. Therefore, larger or heavier particles in the liquid manure will sink. The particles fall into the tiltable bottle bottom mechanism, and at the same time, the second filter plate 10 can perform a second filtration of the liquid manure to prevent clogging of the adjustable spraying mechanism. The adjustable spraying mechanism can adjust the spraying speed during spraying, making it more convenient to use. When there are many impurities in the tiltable bottle bottom mechanism, the tiltable bottle bottom mechanism can be tilted by the motor to pour out all the impurities. When the tiltable bottle bottom mechanism rotates, due to the action of the elastic connection mechanism, the transfer bottle 8 can move within a small range, which facilitates the tiltable bottle bottom mechanism to tilt. The controller 15 is used to control the delivery pump 7 and the motor 14, making it more convenient to use.

[0040] Further optimization of the scheme: the transfer bottle 8 includes a straight section 16 and an extension section 17. The straight section 16 and the extension section 17 are fixedly connected. The extension section 17 is located below the straight section 16. The straight section 16 has an inlet, and a rigid pipe connector 18 is fixedly connected to the inlet. The outlet of the transfer pump 7 is connected to the rigid pipe connector 18. The second filter plate 10 is located above the inlet, and the outlet 9 is located at the top of the straight section 16. The extension section 17 is correspondingly set with the flip-top bottle bottom mechanism.

[0041] The straight section 16 is used to connect with the elastic connecting mechanism. The extended section 17 allows larger or heavier particles in the liquid manure to fall quickly. The liquid manure enters the straight section 16 from the inlet. Due to gravity, the liquid manure will flow downward first. In addition, the extended section 17 has a larger diameter, which is conducive to the settling of larger or heavier particles.

[0042] The scheme is further optimized. The bottle bottom flipping mechanism includes a rotating cylinder 19. The rotating cylinder 19 has several first through holes arranged in two rows. A bottle bottom 20 is fixedly connected in the first through holes. The bottle bottom 20 is adapted to the extension section 17. The rotating cylinder 19 is rotatably connected between two support plates 13. The motor 14 is connected to the rotating cylinder 19 for transmission.

[0043] Motor 14 drives rotating cylinder 19 to rotate. When rotating cylinder 19 rotates, it will drive bottle bottom 20 to rotate. After rotating, bottle bottom 20 can be completely flipped over, thereby pouring out larger or heavier particles inside. Two rows of bottle bottoms 20 are symmetrically arranged on rotating cylinder 19. When one row is connected to extension section 17, the other row of rotating cylinder 19 can be directly below, which makes it convenient to pour out larger or heavier particles.

[0044] In a further optimized design, baffles 21 are fixedly connected to both ends of the rotating cylinder 19, and a rotating shaft 22 is rotatably connected to the baffles 21. The rotating shaft 22 is rotatably connected to two support plates 13. The drive shaft of the motor 14 is fixedly connected to the rotating shaft 22, and several connecting rods 23 are fixedly connected between the rotating shaft 22 and the rotating cylinder 19.

[0045] The baffles 21 on both sides of the rotating cylinder 19 close the rotating cylinder 19, and the motor 14 drives the rotating shaft 22 to rotate, which in turn drives the rotating cylinder 19 to rotate.

[0046] The scheme is further optimized. The elastic connection mechanism includes a mounting plate 24, a second through hole is provided on the mounting plate 24, a guide tube 25 is fixedly connected in the second through hole, the straight section 16 is slidably disposed in the guide tube 25, a base plate 26 is fixedly connected on the straight section 16, and a spring 27 is fixedly connected between the base plate 26 and the mounting plate 24.

[0047] When the bottle bottom 20 is flipped, it will push the extension section 17 upward, and the straight section 16 will move inside the guide tube 25 and compress the spring 27. When the bottle bottom 20 on the other side is flipped over, the extension section 17 will fit against the bottle bottom 20 again under the action of the spring 27.

[0048] Further optimization of the scheme: the adjustable spraying mechanism includes a flat nozzle 28, a bend 29 connected to the drain port 9, the flat nozzle 28 and the bend 29 are connected, an arc plate 30 is provided inside the flat nozzle 28, the arc plate 30 is fixedly connected to the inside of the flat nozzle 28 by a rubber plate 31, two third through holes are opened on the flat nozzle 28, two guide rods 32 are fixedly connected to the arc plate 30, the guide rods 32 pass through the third through holes, a movable plate 33 is fixedly connected to the guide rods 32, an electric telescopic rod 34 is installed between the movable plate 33 and the flat nozzle 28, and the electric telescopic rod 34 is electrically connected to the controller 15.

[0049] Liquid manure flows completely from the transfer bottle 8 into the flat nozzle 28. The flat nozzle 28 makes the liquid manure spray out in a flat shape, thereby increasing the spraying area. When it is necessary to adjust the spray volume of the flat nozzle 28, the moving plate 33 is moved by the electric telescopic rod 34, so that the distance between the arc plate 30 and the lower inner wall of the flat nozzle 28 is reduced, thereby making the spray opening of the liquid manure smaller. The rubber plate 31 is adapted to the shape of the flat nozzle 28.

[0050] In a further optimized design, a third fixing plate 35 is fixedly connected to the side wall of the fertilizer tank 2, and a delivery pump 7 is fixedly connected to the third fixing plate 35. The inlet end of the delivery pump 7 is connected to a first delivery pipe 36, which extends into the filter chamber 6. The outlet end of the delivery pump 7 is connected to a second delivery pipe 37. A transfer pipe 38 is fixedly connected to the side wall of the fertilizer tank 2, and the second delivery pipe 37 is connected to the transfer pipe 38. Several first branch pipes 39 are connected to the transfer pipe 38. A first solenoid valve 40 is installed on the first branch pipe 39, and the first solenoid valve 40 is electrically connected to the controller 15. The first branch pipe 39 is connected to the controller 15 through a flexible hose 41 and a rigid pipe connector 18.

[0051] The delivery pump 7 draws out the liquid manure from the filter chamber 6 through the first delivery pipe 36 and then pumps it into the transfer pipe 38. The transfer pipe 38 is connected to multiple first branch pipes 39, and then the manure is sent into the straight section 16 through the first branch pipes 39. The first solenoid valve 40 can control the opening and closing of the first branch pipes 39, and the hose 41 facilitates the up and down movement of the straight section 16.

[0052] In a further optimized scheme, a fourth fixed plate 42 is fixedly connected to the first fixed plate 11, and an air pump 43 is fixedly connected to the fourth fixed plate 42. The air pump 43 is connected to the first branch pipe 39 through the second branch pipe 44. A second solenoid valve 45 is installed on the second branch pipe 44 and is connected to the controller 15.

[0053] When there is a blockage downstream of the second branch pipe 44, the air pump 43 can be used to ventilate downstream. Before ventilating, the first solenoid valve 40 should be closed. When ventilating, the extension section 17 should remain in contact with the bottom of the bottle 20.

[0054] The scheme is further optimized. An inner concave rubber ring 46 is fixedly connected to the extension section 17, and an outer convex rubber ring 47 is fixedly connected to the bottle bottom 20. The inner concave rubber ring 46 and the outer convex rubber ring 47 are compatible. A top plate 48 is detachably connected to the fertilizer box 2, and the liquid filling port 3 is opened on the top plate 48.

[0055] The combination of the concave rubber ring 46 and the convex rubber ring 47 improves the sealing of the extension section 17 and the bottom of the bottle 20. When the fertilizer box 2 needs to be cleaned, the top plate 48 can be completely removed. The top plate 48 and the fertilizer box 2 are connected by bolts.

[0056] A method for efficiently returning liquid manure to the field includes the following steps:

[0057] Step 1: Pour the liquid manure into the fertilizer tank 2 through the liquid inlet 3. The liquid manure enters the original liquid chamber 5, passes through the first filter plate 4, and then enters the filter chamber 6.

[0058] Step 2: Start the delivery pump 7 through the controller 15. The delivery pump 7 draws out the liquid manure in the filter chamber 6 through the first delivery pipe 36, then pumps it into the transfer pipe 38, and then sends it into the straight section 16 through the first branch pipe 39. The liquid manure enters the straight section 16 from the inlet. Due to gravity, the liquid manure will flow downward first. In addition, the diameter of the extension section 17 is large, which is conducive to the settling of larger or heavier particles.

[0059] Step 3: The liquid manure flows upward and enters the bend 29 through the drain port, and then is sprayed out through the flat nozzle 28. The flat nozzle 28 can make the liquid manure spray out in a flat shape. When it is necessary to adjust the spray volume of the flat nozzle 28, the moving plate 33 is moved by the electric telescopic rod 34, so that the distance between the arc plate 30 and the lower inner wall of the flat nozzle 28 is reduced, thereby making the outlet of the liquid manure spray smaller.

[0060] Step 4: When there are many larger or heavier particles in the bottom 20 of the bottle, the motor 14 is started by the controller 15 to drive the rotating drum 19 to rotate. When the rotating drum 19 rotates, it will drive the bottom 20 of the bottle to rotate. After the bottom 20 of the bottle rotates, it can be completely flipped over, thereby pouring out the larger or heavier particles inside. When one row is docked with the extension section 17, the other row of rotating drums 19 can be directly below, which makes it convenient to pour out the larger or heavier particles, thereby avoiding the accumulation of larger or heavier particles in the transfer bottle 8.

[0061] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0062] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A high-efficiency liquid manure returning device, characterized in that, include: The vehicle body (1) is fixedly connected to a fertilizer tank (2), and the fertilizer tank (2) is provided with a liquid inlet (3). A first filter plate (4) is fixedly connected inside the fertilizer tank (2), and the first filter plate (4) divides the fertilizer tank (2) into a raw liquid chamber (5) and a filter chamber (6). The spraying assembly includes a delivery pump (7) and several transfer bottles (8). The inlet end of the delivery pump (7) is connected to the filter chamber (6), and the outlet end of the delivery pump (7) is connected to the transfer bottle (8). A drain port (9) is provided on the transfer bottle (8). The drain port (9) is located at the top of the transfer bottle (8). A second filter plate (10) is fixedly connected inside the transfer bottle (8). An adjustable spraying mechanism is connected to the drain port (9). A first fixed plate (11) and a second fixed plate (12) are fixedly connected to the vehicle body (1). The transfer bottle (8) is set on the first fixed plate (11) through an elastic connection mechanism. Two support plates (13) are fixedly connected to the second fixed plate (12). A motor (14) is fixedly connected to the support plate (13). A flip-bottom mechanism is provided between the two support plates (13). The flip-bottom mechanism is correspondingly set to the transfer bottle (8). The controller (15) is fixedly connected to the outer wall of the fertilizer box (2), and the delivery pump (7) and the motor (14) are both electrically connected to the controller (15).

2. The liquid manure high-efficiency returning device according to claim 1, characterized in that: The transfer bottle (8) includes a straight section (16) and an extension section (17). The straight section (16) and the extension section (17) are fixedly connected. The extension section (17) is located below the straight section (16). The straight section (16) has an inlet. The inlet is fixedly connected to a rigid pipe connector (18). The outlet of the transfer pump (7) is connected to the rigid pipe connector (18). The second filter plate (10) is located above the inlet. The outlet (9) is located on the top of the straight section (16). The extension section (17) is correspondingly arranged with the flip-top bottle bottom mechanism.

3. The liquid manure high-efficiency returning device according to claim 2, characterized in that: The bottle bottom flipping mechanism includes a rotating cylinder (19), which has a plurality of first through holes arranged in two rows. A bottle bottom (20) is fixedly connected in the first through holes. The bottle bottom (20) is adapted to the extension section (17). The rotating cylinder (19) is rotatably connected between the two support plates (13). The motor (14) is connected to the rotating cylinder (19) in a transmission.

4. The liquid manure high-efficiency returning device according to claim 3, characterized in that: The rotating cylinder (19) is fixedly connected to two baffles (21) at both ends. The baffles (21) are rotatably connected to a rotating shaft (22). The rotating shaft (22) is rotatably connected to two support plates (13). The drive shaft of the motor (14) is fixedly connected to the rotating shaft (22). Several connecting rods (23) are fixedly connected between the rotating shaft (22) and the rotating cylinder (19).

5. The liquid manure high-efficiency returning device according to claim 2, characterized in that: The elastic connection mechanism includes a mounting plate (24), a second through hole is provided on the mounting plate (24), a guide tube (25) is fixedly connected in the second through hole, the straight section (16) is slidably disposed in the guide tube (25), a base plate (26) is fixedly connected on the straight section (16), and a spring (27) is fixedly connected between the base plate (26) and the mounting plate (24).

6. The liquid manure high-efficiency returning device according to claim 2, characterized in that: The adjustable spraying mechanism includes a flat nozzle (28), a curved pipe (29) connected to the drain port (9), the flat nozzle (28) being connected to the curved pipe (29), an arc plate (30) being provided inside the flat nozzle (28), the arc plate (30) being fixedly connected to the inside of the flat nozzle (28) by a rubber plate (31), two third through holes being opened on the flat nozzle (28), two guide rods (32) being fixedly connected to the arc plate (30), the guide rods (32) passing through the third through holes, a moving plate (33) being fixedly connected to the guide rods (32), an electric telescopic rod (34) being installed between the moving plate (33) and the flat nozzle (28), and the electric telescopic rod (34) being electrically connected to the controller (15).

7. The liquid manure high-efficiency returning device according to claim 2, characterized in that: A third fixing plate (35) is fixedly connected to the side wall of the fertilizer tank (2). The delivery pump (7) is fixedly connected to the third fixing plate (35). The inlet end of the delivery pump (7) is connected to a first delivery pipe (36). The first delivery pipe (36) extends into the filter chamber (6). The outlet end of the delivery pump (7) is connected to a second delivery pipe (37). A transfer pipe (38) is fixedly connected to the side wall of the fertilizer tank (2). The second delivery pipe (37) is connected to the transfer pipe (38). Several first branch pipes (39) are connected to the transfer pipe (38). A first solenoid valve (40) is installed on the first branch pipe (39). The first solenoid valve (40) is electrically connected to the controller (15). The first branch pipe (39) is connected to the hard pipe joint (18) through a hose (41).

8. The liquid manure high-efficiency returning device according to claim 7, characterized in that: A fourth fixed plate (42) is fixedly connected to the first fixed plate (11), and an air pump (43) is fixedly connected to the fourth fixed plate (42). The air pump (43) is connected to the first branch pipe (39) through the second branch pipe (44). A second solenoid valve (45) is installed on the second branch pipe (44), and the second solenoid valve (45) is connected to the controller (15).

9. The liquid manure high-efficiency returning device according to claim 3, characterized in that: An inner concave rubber ring (46) is fixedly connected to the extension section (17), and an outer convex rubber ring (47) is fixedly connected to the bottom of the bottle (20). The inner concave rubber ring (46) and the outer convex rubber ring (47) are compatible with each other. A top plate (48) is detachably connected to the fertilizer box (2), and the liquid filling port (3) is opened on the top plate (48).

10. A method for efficiently returning liquid manure to the field, based on the device for efficiently returning liquid manure to the field as described in claim 1, characterized in that, Includes the following steps: The liquid manure is poured into the fertilizer tank (2) through the liquid inlet (3). The liquid manure enters the original liquid chamber (5), passes through the first filter plate (4), and then enters the filter chamber (6). The transfer pump (7) is started by the controller (15). The transfer pump (7) pumps the filtered liquid manure to the transfer bottle (8). The liquid manure flows out from the drain port (9) of the transfer bottle (8). Since the drain port (9) is located at the top of the transfer bottle (8), when the liquid manure flows to the drain port (9), larger or heavier particles in the liquid manure will settle downwards and fall into the flip-bottom mechanism. When there are a lot of large or heavy particles in the flip-bottom mechanism, the motor (14) is started by the controller (15), and the motor (14) drives the flip-bottom (20) mechanism to flip, thereby avoiding the accumulation of large or heavy particles in the transfer bottle (8).

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