A towed organic fertilizer applicator

Abstract

The utility model discloses a kind of towed organic fertilizer fertilizing device, including mounting bracket, and the side of mounting bracket is connected with connecting frame, and fertilizer applicator is installed on mounting bracket, and the side of connecting frame and the side of mounting bracket is equipped with connecting plate, and clamping device is installed on connecting plate, and clamping device includes connecting sleeve, control sleeve, connecting rod, control groove, moving groove, connecting groove and roll ball, control sleeve is sleeved in the outside of connecting sleeve, control groove is opened in the inside of control sleeve, moving groove is opened in the side wall of connecting sleeve, connecting groove is opened in the outside of connecting rod, roll ball is installed in moving groove and rolls, limit mechanism is arranged on the outside of connecting sleeve, and limit mechanism includes movable plate, round hole, arc slot, control rod and control plate, the utility model not only solves the problems of traditional manual fertilization, connection is complicated and poor stability, but also significantly improves agricultural production efficiency and the service life of equipment through multiple transmission mechanism and reliable locking structure.

Description

Technical Field

[0001] This utility model relates to the field of towed organic fertilizer application technology, and more specifically, to a towed organic fertilizer application device. Background Technology

[0002] In the field of towable organic fertilizer application equipment, the degree of automation of fertilization, the convenience of connection structure and the stability of connection parts are key factors affecting the effect of use. However, the fertilization equipment on the market still has many technical defects in practical applications. These problems not only affect the fertilization efficiency, but may also reduce the safety and ease of operation of the equipment.

[0003] The primary problem is the significant shortcomings of existing fertilization methods. Firstly, traditional manual spreading methods are labor-intensive and inefficient. Secondly, manual fertilization makes it difficult to ensure uniform fertilizer distribution, affecting crop growth. Thirdly, it cannot achieve synchronous fertilization during equipment movement, leading to low operational efficiency. These shortcomings of traditional fertilization methods not only increase agricultural production costs but may also affect crop yields due to uneven fertilization, failing to meet the efficiency requirements of modern agricultural production.

[0004] More notably, the connection structure suffers from significant drawbacks in terms of ease of use. Existing connection methods have notable practical problems: First, connecting tractors and other power machinery to fertilizer application devices requires the use of various specialized tools, increasing operational difficulty; second, the complex connection structure leads to a lengthy disassembly and assembly process, reducing work efficiency; and third, the cumbersome connection method makes daily maintenance and repair of the equipment difficult. These shortcomings of traditional connection methods not only affect the flexibility of equipment use but may also shorten the equipment's lifespan due to inconvenient maintenance.

[0005] Most critically, the stability of the connection structure is severely inadequate. Although some equipment has achieved rapid connection between the power machinery and the fertilization device through design improvements, this design still has obvious defects: First, the simple connection structure is difficult to withstand the continuous vibration generated during equipment operation; second, in complex farmland terrain conditions, the connection parts are prone to loosening due to bumps; third, the stability of the connection structure gradually decreases with the extension of the usage time, posing a safety hazard of accidental detachment. This structural design deficiency not only affects the safety of equipment use, but may also cause fertilization interruption and equipment damage due to the detachment of the connection parts. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a towable organic fertilizer application device to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a towable organic fertilizer applicator, comprising a mounting frame, a connecting frame connected to one side of the mounting frame, an applicator mounted on the mounting frame, a connecting plate fixedly mounted on one side of the connecting frame and one side of the mounting frame, a locking device mounted on the connecting plate, the locking device comprising a connecting sleeve, a control sleeve, a connecting rod, a control groove, a moving groove, a connecting groove, and a ball, the connecting sleeve being detachably fitted onto the outside of the connecting rod, the control sleeve being slidably fitted onto the outside of the connecting sleeve, the connecting rod slidingly passing through the connecting plate, the control groove being formed inside the control sleeve, the moving groove being formed on the side wall of the connecting sleeve, the connecting groove being formed outside the connecting rod, the ball being rotatably mounted in the moving groove, a limiting mechanism being provided on the outside of the connecting sleeve, the limiting mechanism comprising a movable plate, a round hole, an arc groove, a control rod, and a control plate, the movable plate being rotatably mounted on the outside of the connecting sleeve, the round hole being formed at one end of the arc groove, the arc groove being formed on the movable plate, a plurality of control rods being fixedly connected to some of the control sleeves, and the control plate being fixedly mounted on the control rods.

[0010] The present invention is further configured such that the fertilizer application device includes a placement chamber, a spreading chamber, a rotating wheel, a movable shaft, a transmission shaft, a sprocket, and a chain. The placement chamber is detachably installed on the top of the mounting frame, and multiple spreading chambers are detachably installed on the bottom of the placement chamber. The rotating wheel is rotatably installed on the bottom of the mounting frame, and the movable shaft is rotatably installed on the mounting frame. The sprockets are respectively installed on one end of the transmission shaft and both ends of the movable shaft. The sprocket connected to one end of the movable shaft is connected to the sprocket connected to one end of the transmission shaft via a chain.

[0011] The present invention is further configured such that one end of the rotating wheel is connected to a sprocket, and the sprocket connected to one end of the rotating wheel is connected to a sprocket installed at the other end of the movable shaft via a chain.

[0012] The present invention is further configured such that a connecting pipe is connected to the bottom end of the spreading chamber, and a fertilizer pipe is detachably provided on the lower side of the mounting frame, with the bottom end of the connecting pipe connected to the top end of the fertilizer pipe.

[0013] The present invention is further configured such that the movable groove has an inner narrow and outer wide structure design.

[0014] The present invention is further configured such that multiple movable grooves and rolling balls are provided.

[0015] The present invention is further configured such that a return spring is movably sleeved on the outside of the control rod, one end of the return spring is connected to the control sleeve, and the other end of the return spring abuts against one side of the movable plate. The setting of the return spring ensures the stable reset of the control sleeve.

[0016] The present invention is further provided with a plurality of anti-slip strips on the outer side of the control sleeve, which improves the anti-slip ability and operating feel of the outer side of the control sleeve.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a towable organic fertilizer application device, which has the following beneficial effects:

[0019] 1. The fertilization device, through the precise coordination of the placement bin, spreading bin, rotating wheel, movable shaft, transmission shaft, sprocket, and chain, constructs an automated synchronous fertilization system. The rotating wheel drives the movable shaft to rotate through the transmission mechanism of the sprocket and chain. The movable shaft then drives the transmission shaft to rotate through the sprocket and chain, thereby driving the spreading wheel in the spreading bin. The setting of the connecting pipe and the fertilization pipe ensures the directional delivery of fertilizer. This design not only realizes synchronous fertilization during the movement of the equipment, but also ensures the uniformity of fertilization through mechanical transmission, significantly improving fertilization efficiency and fertilizer utilization rate.

[0020] 2. The locking device, through the ingenious design of components such as the connecting sleeve, control sleeve, connecting rod, and ball bearings, constructs a convenient connection system. The sleeve-connecting structure of the connecting sleeve and connecting rod provides a convenient connection effect. The ball bearings achieve quick locking and unlocking through the cooperation of the moving groove and the connecting groove. The sliding design of the control sleeve and the opening of the control groove make the connection process smoother. The setting of multiple ball bearings enhances the connection strength. This structure not only simplifies the connection operation between the power machinery and the fertilizer application device and reduces the use of professional tools, but also makes the connection process smoother through the rolling mechanism of the ball bearings, greatly improving the efficiency of equipment installation and maintenance.

[0021] 3. The limiting mechanism, through the coordinated action of the movable plate, round hole, arc groove, control rod, and control plate, constructs a stable locking system. The movable plate achieves precise positioning through the cooperation of the round hole and arc groove with the control rod. The control plate provides a reliable limiting effect. The design of the return spring provides pre-tightening force for the control sleeve, and the anti-slip strip enhances the stability of operation. This structure not only enhances the stability of the connection part through multiple locking mechanisms, but also prevents the components from loosening and falling off due to vibration during use through the application of elastic elements and the design of the guide structure, significantly improving the safety and reliability of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a towable organic fertilizer application device according to the present invention.

[0023] Figure 2 This is a schematic diagram of the fertilization device in this utility model;

[0024] Figure 3 This is a schematic diagram of the locking device and limiting mechanism in this utility model;

[0025] Figure 4 This is a cross-sectional view of the connecting sleeve and control sleeve in this utility model.

[0026] Figure 5 This is a cross-sectional view of the connecting sleeve, connecting rod, and ball portion in this utility model.

[0027] In the diagram: 1. Mounting frame; 2. Connecting frame; 3. Connecting plate; 4. Connecting sleeve; 5. Control sleeve; 6. Connecting rod; 7. Control groove; 8. Moving groove; 9. Connecting groove; 10. Rolling ball; 11. Movable plate; 12. Round hole; 13. Arc groove; 14. Control rod; 15. Control plate; 16. Placement chamber; 17. Spreading chamber; 18. Rotating wheel; 19. Movable shaft; 20. Drive shaft; 21. Sprocket; 22. Chain; 23. Connecting pipe; 24. Fertilizer pipe; 25. Return spring; 26. Anti-slip strip. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A towable organic fertilizer applicator includes a mounting frame 1, with a connecting frame 2 connected to one side of the mounting frame 1. The applicator is mounted on the mounting frame 1. A connecting plate 3 is fixedly mounted on one side of the connecting frame 2 and one side of the mounting frame 1. A locking device is mounted on the connecting plate 3, comprising a connecting sleeve 4, a control sleeve 5, a connecting rod 6, a control groove 7, a moving groove 8, a connecting groove 9, and a ball bearing 10. The connecting sleeve 4 is detachably fitted onto the outside of the connecting rod 6, the control sleeve 5 is slidably fitted onto the outside of the connecting sleeve 4, the connecting rod 6 slides through the connecting plate 3, and the control groove 7 is formed... Inside the control sleeve 5, a movable groove 8 is formed on the side wall of the connecting sleeve 4, and a connecting groove 9 is formed on the outside of the connecting rod 6. A ball 10 is rotatably installed in the movable groove 8. A limiting mechanism is provided on the outside of the connecting sleeve 4. The limiting mechanism includes a movable plate 11, a round hole 12, an arc groove 13, a control rod 14, and a control plate 15. The movable plate 11 is rotatably installed on the outside of the connecting sleeve 4. The round hole 12 is formed at one end of the arc groove 13. The arc groove 13 is formed on the movable plate 11. Multiple control rods 14 are fixedly connected to some parts of the control sleeve 5, and the control plate 15 is fixedly set on the control rods 14.

[0032] The fertilizer application device includes a placement chamber 16, a spreading chamber 17, a rotating wheel 18, a movable shaft 19, a drive shaft 20, a sprocket 21, and a chain 22. The placement chamber 16 is detachably mounted on the top of the mounting frame 1, and multiple spreading chambers 17 are detachably mounted on the bottom of the placement chamber 16. The rotating wheel 18 is rotatably mounted on the bottom of the mounting frame 1, and the movable shaft 19 is rotatably mounted on the mounting frame 1. The sprockets 21 are respectively mounted on one end of the drive shaft 20 and both ends of the movable shaft 19. The sprockets 21 connected to one end of the movable shaft 19 and the sprockets 21 connected to one end of the drive shaft 20 are connected by the chain 22.

[0033] One end of the rotating wheel 18 is connected to the sprocket 21, and the sprocket 21 connected to one end of the rotating wheel 18 is connected to the sprocket 21 installed at the other end of the movable shaft 19 via a chain 22.

[0034] The bottom of the spreading bin 17 is connected to a connecting pipe 23, and the lower side of the mounting frame 1 is detachably provided with a fertilizer pipe 24, with the bottom of the connecting pipe 23 connected to the top of the fertilizer pipe 24.

[0035] In this embodiment, when the device is needed, the external power mechanism is first inserted through a traction frame between multiple connecting plates 3 on one side of the connecting frame 2 and the mounting frame 1. Then, the traction frame is connected to the connecting plates 3. Next, the waste material is placed in the placement bin 16. Then, the external power mechanism is activated, causing the external power mechanism to move the entire device. The rotating wheel 18 then rotates, driving a sprocket 21 connected to one end. This sprocket 21, through a chain 22 sleeved on its outer side, drives a sprocket 21 connected to one end of the movable shaft 19 to rotate. This sprocket 21 then drives the movable shaft 19 to rotate, thereby... The sprocket 21 connected to the other end of the movable shaft 19 rotates synchronously. Then, the sprocket 21 drives the sprocket 21 connected to one end of the transmission shaft 20 to rotate via the chain 22 sleeved on the outside. This drives the transmission shaft 20 to rotate, causing the transmission shaft 20 to drive the spreading wheel inside the spreading chamber 17 to rotate. The spreading wheel has toothed grooves and gears on the outside, similar to the structure of a spur gear, which will not be described in detail here. This allows the fertilizer to be inserted into the grooves on the outside of the spreading wheel. Then, the spreading wheel carries the fertilizer into the bottom of the spreading chamber 17, and then it is transported to the fertilizer pipe 24 through the connecting pipe 23. Finally, it is input into the soil through the fertilizer pipe 24, realizing the function of mechanized synchronous fertilization.

[0036] Please see Figures 3-5 As a further implementation of the overall equipment: the moving slot 8 has an inner narrow and outer wide structure design.

[0037] Multiple movable slots 8 and multiple rolling balls 10 are provided.

[0038] A return spring 25 is movably sleeved on the outside of the control lever 14. One end of the return spring 25 is connected to the control sleeve 5, and the other end of the return spring 25 abuts against one side of the movable plate 11.

[0039] Multiple anti-slip strips 26 are provided on the outer side of the control sleeve 5.

[0040] More specifically, when connecting an external power mechanical device to the connecting plate 3, first rotate the movable plate 11 in the forward direction, causing the movable plate 11 to drive the circular hole 12 and the arc-shaped groove 13 to rotate. When the circular hole 12 rotates to a position concentric with the control rod 14 and the control plate 15, push the control sleeve 5 to move, causing the control sleeve 5 to drive the control rod 14 and the control plate 15 to slide and gradually pass through the circular hole 12. The control sleeve 5 will cooperate with the movable plate 11 to squeeze the return spring 25. At the same time, the control sleeve 5 will drive the control groove 7 opened on the inner side to slide. When the return spring 25 is squeezed to the limit, the control plate 15 near the control sleeve 5 just completely passes through the circular hole 12 and moves to the other side of the movable plate 11. At the same time, the control groove 7 moves to the same position as the movable plate 11. The corresponding position of slot 8 is then rotated in the opposite direction, causing the movable plate 11 to rotate in the opposite direction, which in turn causes the circular hole 12 and the arc-shaped slot 13 to rotate, allowing the control rod 14 to enter the arc-shaped slot 13. Then, the control rod 14 and the corresponding control plate 15 cooperate to limit the control sleeve 5 to one side of the movable plate 11. Then, the connecting sleeve 4 and the connecting rod 6 are pulled to both sides respectively, causing the inner wall of the connecting slot 9 to press against the outer wall of the ball 10. Then, the ball 10 rolls outward in the moving slot 8, causing part of the ball 10 to enter the control slot 7 and the ball 10 to roll completely out of the connecting slot 9. Then, one side of the external traction frame is inserted between the two connecting plates 3, and the mounting holes reserved on the connecting plate 3 and the external traction frame are concentric. Then, the connecting rod 6 passes through both connecting plates 3 and the external traction frame from one side of one of the connecting plates 3. The connecting sleeve 4 is then re-fitted onto the outside of the connecting rod 6. The movable plate 11 is then rotated forward again, causing the circular hole 12 and the arc-shaped groove 13 to rotate forward once more. When the circular hole 12 moves again to a position concentric with the control plate 15, the return spring 25 pushes the control sleeve 5 to slide and reset. The control sleeve 5 then drives the two control plates 15 to slide and reset via the control rod 14. The control sleeve 5 also drives the inner control groove 7 to slide and reset. The chamfered portion of the inner wall of the control groove 7 then presses against the outer wall of the ball 10, causing the ball 10 to roll inward along the moving groove 8, and causing part of the ball 10 to... The connecting sleeve 4 and the connecting rod 6 re-roll into the connecting groove 9, thereby re-establishing the locking relationship between the connecting sleeve 4 and the connecting rod 6. At this time, the return spring 25 is fully reset. Then, the control plate 15 connected to the top of the control rod 14 moves back to the original side of the movable plate 11. Then, the movable plate 11 continues to rotate, causing the movable plate 11 to drive the round hole 12 and the arc groove 13 to rotate to a position that does not correspond to the control rod 14 and the control plate 15. Then, the control rod 14, the control plate 15, and the movable plate 11 cooperate to support the control sleeve 5. With the pre-tightening force applied to the control sleeve 5 by the return spring 25, the control sleeve 5 can be prevented from easily sliding, thereby ensuring structural stability, ensuring a stable connection, and thus ensuring the stable progress of fertilization work.

[0041] In summary, when using or operating the entire equipment: First, insert the external power mechanism through the traction frame between the multiple connecting plates 3 on one side of the connecting frame 2 and the mounting frame 1. Then, connect the traction frame to the connecting plates 3. Next, place the waste material in the placement bin 16. Then, turn on the external power mechanism, causing it to move the entire equipment. The rotating wheel 18 will then rotate, driving the sprocket 21 connected to one end. This sprocket 21, through the chain 22 sleeved on its outer side, drives the sprocket 21 connected to one end of the movable shaft 19 to rotate, which in turn drives the movable shaft 19. The rotation of the shaft 19 causes the sprocket 21 connected to the other end of the shaft 19 to rotate synchronously. The sprocket 21 then drives the sprocket 21 connected to one end of the transmission shaft 20 to rotate via the chain 22 sleeved on the outside. This drives the transmission shaft 20 to rotate, which in turn drives the spreading wheel inside the spreading chamber 17 to rotate. The spreading wheel has toothed grooves and gears on the outside, similar to the structure of a spur gear, which will not be described in detail here. This allows the fertilizer to be inserted into the grooves on the outside of the spreading wheel. The spreading wheel then carries the fertilizer into the lower part of the spreading chamber 17, and then it is transported to the fertilizer pipe 24 through the connecting pipe 23. Finally, it is input into the soil through the fertilizer pipe 24, realizing the function of mechanized synchronous fertilization.

[0042] When connecting an external power mechanical device to the connecting plate 3, first rotate the movable plate 11 in the forward direction, causing the movable plate 11 to drive the circular hole 12 and the arc-shaped groove 13 to rotate. When the circular hole 12 rotates to a position concentric with the control rod 14 and the control plate 15, push the control sleeve 5 to move, causing the control sleeve 5 to drive the control rod 14 and the control plate 15 to slide and gradually pass through the circular hole 12. The control sleeve 5 will cooperate with the movable plate 11 to compress the return spring 25. At the same time, the control sleeve 5 will drive the control groove 7 opened on the inner side to slide. When the return spring 25 is compressed to the limit, the control plate 15 near the control sleeve 5 just completely passes through the circular hole 12 and moves to the other side of the movable plate 11. At the same time, the control groove 7 moves to align with the moving groove 8. The movable plate 11 is rotated in the opposite direction, causing the circular hole 12 and the arc-shaped groove 13 to rotate in the opposite direction. This allows the control rod 14 to enter the arc-shaped groove 13. Then, the control rod 14 and the corresponding control plate 15 cooperate to limit the control sleeve 5 to one side of the movable plate 11. Then, the connecting sleeve 4 and the connecting rod 6 are pulled to both sides, causing the inner wall of the connecting groove 9 to press against the outer wall of the ball 10. The ball 10 then rolls outward in the moving groove 8, causing a portion of the ball 10 to enter the control groove 7 and then completely rolling out of the connecting groove 9. Then, one side of the external traction frame is inserted between the two connecting plates 3, ensuring that the mounting holes on the connecting plate 3 and the external traction frame are concentric. The connecting rod 6 passes through both connecting plates 3 and the external traction frame from one side of one of the connecting plates 3. Then, the connecting sleeve 4 is re-fitted onto the outside of the connecting rod 6. The movable plate 11 is then rotated forward again, causing the movable plate 11 to drive the circular hole 12 and the arc groove 13 to rotate forward again. When the circular hole 12 moves to a position concentric with the control plate 15, the return spring 25 pushes the control sleeve 5 to slide and reset. Then, the control sleeve 5 drives the two control plates 15 to slide and reset via the control rod 14. The control sleeve 5 also drives the control groove 7 opened on the inner side to slide and reset. Then, the chamfered part of the inner wall of the control groove 7 presses against the outer wall of the ball 10, causing the ball 10 to roll inward along the moving groove 8, and causing part of the ball 10 to... The sleeve 4 rolls back into the connecting groove 9, allowing the connecting sleeve 4 and connecting rod 6 to re-engage. At this point, the return spring 25 is fully reset. Then, the control plate 15 connected to the top of the control rod 14 moves back to the original side of the movable plate 11. The movable plate 11 continues to rotate, causing the circular hole 12 and the arc groove 13 to rotate to a position that does not correspond to the control rod 14 and control plate 15. The control rod 14, control plate 15, and movable plate 11 then work together to support the control sleeve 5. Combined with the pre-tightening force applied to the control sleeve 5 by the return spring 25, the control sleeve 5 is prevented from easily sliding, thus ensuring structural stability, a stable connection, and consequently, the stable operation of the fertilization work.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A towed organic fertilizer application device comprising a mounting frame (1), one side of the mounting frame (1) being connected with a connecting frame (2), characterized in that: A fertilization device is installed on the mounting frame (1). A connecting plate (3) is provided on one side of the connecting frame (2) and one side of the mounting frame (1). A locking device is installed on the connecting plate (3). The locking device includes a connecting sleeve (4), a control sleeve (5), a connecting rod (6), a control groove (7), a moving groove (8), a connecting groove (9), and a ball (10). The control sleeve (5) is fitted on the outside of the connecting sleeve (4). The control groove (7) is opened on the inside of the control sleeve (5). The moving groove (8) is opened on the side wall of the connecting sleeve (4). The connecting groove (9) is opened on the outside of the connecting rod (6). The ball (10) is... The connecting sleeve (4) is rolled in the moving groove (8). A limiting mechanism is provided on the outside of the connecting sleeve (4). The limiting mechanism includes a movable plate (11), a round hole (12), an arc groove (13), a control rod (14), and a control plate (15). The movable plate (11) is rotatably installed on the outside of the connecting sleeve (4). The round hole (12) is opened at one end of the arc groove (13). The arc groove (13) is opened on the movable plate (11). A plurality of control rods (14) are fixedly connected to some of the control sleeves (5). The control plate (15) is fixedly installed on the control rods (14).

2. The device according to claim 1, characterized in that: The fertilization device includes a placement chamber (16), a spreading chamber (17), a rotating wheel (18), a movable shaft (19), a transmission shaft (20), a sprocket (21), and a chain (22). The placement chamber (16) is detachably installed on the top of the mounting frame (1), and multiple spreading chambers (17) are detachably installed on the bottom of the placement chamber (16). The rotating wheel (18) is rotatably installed on the bottom of the mounting frame (1), and the movable shaft (19) is rotatably installed on the mounting frame (1). The sprockets (21) are respectively installed on one end of the transmission shaft (20) and both ends of the movable shaft (19). The sprocket (21) connected to one end of the movable shaft (19) and the sprocket (21) connected to one end of the transmission shaft (20) are connected by the chain (22).

3. The tow-behind organic fertilizer applicator of claim 2, wherein: One end of the rotating wheel (18) is connected to the sprocket (21), and the sprocket (21) connected to one end of the rotating wheel (18) is connected to the sprocket (21) installed at the other end of the movable shaft (19) via a chain (22).

4. The tow-behind organic fertilizer applicator of claim 3, wherein: The bottom of the spreading chamber (17) is connected to a connecting pipe (23), and the lower side of the mounting frame (1) is detachably provided with a fertilizer pipe (24). The bottom of the connecting pipe (23) is connected to the top of the fertilizer pipe (24).

5. A tow-behind organic fertilizer applicator according to any one of claims 1-4, characterized in that: The moving slot (8) has an inner narrow and outer wide structure design.

6. The tow-behind organic fertilizer applicator of claim 5, wherein: Multiple movable grooves (8) and rolling balls (10) are provided.

7. The device according to claim 1, characterized in that: A reset spring (25) is movably sleeved on the outside of the control rod (14). One end of the reset spring (25) is connected to the control sleeve (5), and the other end of the reset spring (25) abuts against one side of the movable plate (11).

8. The tow-behind organic fertilizer applicator of claim 7, characterized in that: The control sleeve (5) has multiple anti-slip strips (26) on its outer side.

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