A film seeder

Abstract

The application belongs to the technical field of seeding machines, and particularly discloses a film mulching seeding machine, which comprises a seeding box, a fertilizer box is arranged on one side of the seeding box, mounting racks are fixedly installed at the bottom of the seeding box and the fertilizer box, and a film mulching adjusting assembly is arranged on one side of the mounting rack. The radius of the mounting shaft can be adjusted through the movement of the first fixing shaft and the second fixing shaft, the speed of adjusting the radius of the mounting shaft is improved, different radii of the film roll can be mounted on the fixing frame, different film rolls are adapted, the release tension of the film roll is more uniform, wrinkles caused by the over-looseness of the film roll or tearing caused by the over-tightness of the film roll due to the tension fluctuation are avoided, the first fixing shaft and the second fixing shaft after adjustment are fixed through the limiting structure, the stability of the overall structure is improved, and the service life of the whole machine is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seeding machines, and particularly relates to a film mulching seeding machine. BACKGROUND

[0002] Peanut is one of the main economic crops in China, and its comprehensive economic benefit is higher than that of other field grain and oil crops. Its suitable seeding period is relatively short, and the seeding process is relatively more, including ridging, fertilization, seeding, spraying herbicide, film mulching and film mulching and soil covering, etc. The optimal seeding time needs to be grasped, and the seeding quality needs to be ensured, so as to improve the yield and quality of peanuts. With the development of agricultural modernization, the labor cost is rising, and manual seeding is low in efficiency and high in labor intensity, which is difficult to meet the demand of large-scale peanut planting. Therefore, the mechanization of peanut planting is realized, especially the use of soil covering seeding machine, which can complete multiple processes at one time, greatly improve the seeding efficiency, reduce the labor intensity and save the cost of land cultivation.

[0003] In the prior art, the film roll needs to be installed on the film roll shaft. Since the radius of the film roll shaft is fixed, it is inconvenient to adjust the radius of the film roll shaft, and thus the film roll shaft cannot be adapted to different film rolls, affecting the uniformity of the film release tension, avoiding the film being too loose (wrinkled) or too tight (torn) due to tension fluctuation, and thus affecting the service life of the whole machine.

[0004] Therefore, it is necessary to invent a film mulching seeding machine to solve the above problems. SUMMARY

[0005] In view of the above problems, the application provides a film mulching seeding machine to solve the problems in the background art.

[0006] To achieve the above purpose, the application provides the following technical scheme:

[0007] A film mulching seeding machine, comprising a seeding box, a fertilization box is arranged on one side of the seeding box, mounting frames are fixedly installed at the bottom of the seeding box and the fertilization box, a film mulching adjusting assembly is arranged on one side of the mounting frame;

[0008] The film mulching adjusting assembly comprises a fixing frame, mounting plates, a mounting shaft, a clamping ring, an extension column, a moving plate, a first fixing shaft or a second fixing shaft and a limiting structure, the fixing frame is fixedly installed on the mounting frame, the mounting plates are fixedly connected at both ends of the bottom of the fixing frame, the mounting shaft is fixedly connected between the mounting plates, the clamping rings are slidably connected at both ends of the mounting shaft, the clamping rings are fixedly connected with the mounting plates through the extension column, the moving plate is arranged on one side of the mounting plate, the first fixing shaft is arranged between the moving plate and the clamping ring, the second fixing shaft is slidably connected in the first fixing shaft, the first fixing shaft and the second fixing shaft are located outside the mounting shaft, and the limiting structure is arranged on the mounting shaft, the first fixing shaft and the second fixing shaft.

[0009] Furthermore, a membrane pressing and soil covering mechanism is provided in the middle of the fixing frame, which includes:

[0010] The film pressing wheel, connecting shaft, film pressing frame, soil covering plate and support are provided. The film pressing wheel is fixedly connected to the film pressing frame through the connecting shaft. The film pressing frame is fixedly installed on the fixed frame. The soil covering plate is fixed on the fixed frame through the support. The soil covering plate is located on both sides of the film pressing wheel.

[0011] Furthermore, the movable plate is fixedly connected to the first fixed shaft on the side away from the retaining ring, and the movable plate is slidably connected to the outside of the mounting shaft. The mounting shaft passes through the middle of the first fixed shaft. Both ends of the first fixed shaft and the second fixed shaft are provided with limiting openings. The mounting shaft located at the bottom of the retaining ring is provided with a mounting groove. The mounting groove communicates with the limiting opening located at the retaining ring. The limiting structure is located in the mounting groove and the limiting opening near the retaining ring.

[0012] Furthermore, the telescopic column is located on the upper and lower sides of the first fixed shaft, and a compression spring is installed inside the telescopic column. The two ends of the compression spring are fixedly connected to the mounting plate and the retaining ring, respectively. A pull block is fixedly connected to one side of the second fixed shaft.

[0013] Furthermore, the limiting structure includes a motor, a rotating rod, a moving block, a push plate, and a limiting block. The motor is fixedly installed on the inner wall of the mounting groove. The output end of the motor is fixedly connected to the rotating rod. One end of the rotating rod is rotatably connected to the inner wall of the mounting groove. The moving block is rotatably connected to the rotating rod. One side of the moving block is slidably connected to the inner wall of the mounting groove. The push plate is hinged to one side of the moving block. The limiting block is hinged to one end of the push plate. The limiting block is inserted into the limiting port located at the retaining ring.

[0014] Furthermore, one end of the push plate extends through the mounting groove into the limiting opening, and the limiting block is slidably connected to the inner wall of the limiting opening. A first moving groove is provided in the middle of the mounting shaft. The first moving groove is located in the middle of the two mounting grooves. A fixing plate is fixedly installed on the inner wall of the first moving groove. Electric push rods are fixedly installed at both the upper and lower ends of the fixing plate. A limiting plate is fixedly connected to the end of the electric push rod away from the fixing plate. The limiting plate is flush with the upper and lower sides of the mounting shaft.

[0015] Furthermore, a second movable groove is provided on both sides of the limiting plate, and an electric telescopic rod is fixedly installed in the second movable groove. A slot is provided on the side of the first fixed shaft and the second fixed shaft near the retaining ring. The slot is located at the upper and lower ends of the first fixed shaft and the second fixed shaft, and one end of the electric telescopic rod is inserted into the slot.

[0016] Furthermore, a fixing hole is provided at the top of the retaining ring, a fixing rod is inserted into the fixing hole, a protective plate is fixedly installed on the top of the fixing rod, a connecting rod is fixedly connected to one end of the protective plate, and both ends of the connecting rod are fixedly connected to the bottom end of the fixing frame.

[0017] Furthermore, the fixing rods are located at both ends of the bottom of the protective plate, and the protective plate is located outside the mounting shaft, the first fixing shaft, or the second fixing shaft. The side of the mounting shaft away from the mounting shaft is arc-shaped.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention allows for adjustment of the radius of the mounting shaft by moving the first and second fixed shafts, increasing the speed of the installation shaft radius adjustment. This enables the mounting frame to accommodate film rolls of different radii, thus adapting to different film rolls and ensuring more uniform tension release. This avoids wrinkling due to excessive looseness or tearing due to excessive tightness caused by tension fluctuations. Furthermore, the limiting structure secures the first and second fixed shafts after movement, improving the stability of the overall structure and extending the service life of the entire machine.

[0020] 2. This invention, through the action of connecting rods and fixing rods, can limit the retaining ring, improve the stability of the retaining ring, prevent the retaining ring from loosening and affecting the fixing effect of the film roll. At the same time, through the action of the protective plate, it can protect and shield the first or second fixed shaft, the retaining ring, and the mounting shaft, preventing dust and mud from directly contacting the film roll, keeping the film surface clean and intact, further improving the stable operation of the first or second fixed shaft and the mounting shaft, and improving stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a structural diagram of the fixing frame, mounting plate, protective plate and first fixing shaft according to an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of the telescopic column, retaining ring, mounting shaft, and second fixed shaft according to an embodiment of the present invention;

[0024] Figure 4 This is the present invention. Figure 3 Enlarged view of point A;

[0025] Figure 5 This is a structural diagram of the retaining ring, the first fixed shaft or the second fixed shaft, the electric telescopic rod and the limiting plate according to an embodiment of the present invention;

[0026] Figure 6 This is a structural diagram of the telescopic column, retaining ring, and mounting shaft according to an embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional view of the first fixed shaft, the second fixed shaft, and the mounting shaft according to an embodiment of the present invention;

[0028] Figure 8This is a cross-sectional view of the first fixed shaft and the second fixed shaft according to an embodiment of the present invention;

[0029] Figure 9 This is a physical diagram of an embodiment of the present invention.

[0030] In the diagram: 1. Mounting frame; 2. Fixing frame; 3. Mounting plate; 4. Mounting shaft; 5. Snap ring; 6. Telescopic column; 7. Moving plate; 8. First fixing shaft; 9. Second fixing shaft; 10. Pressing roller; 11. Covering plate; 12. Limiting opening; 13. Compression spring; 14. Fixing hole; 15. Pull block; 16. Motor; 17. Moving block; 18. Push plate; 19. Limiting block; 20. Fixing plate; 21. Electric push rod; 22. Limiting plate; 23. Electric telescopic rod; 24. Slot; 25. Fixing rod; 26. Protective plate; 27. Connecting rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0032] This invention provides a film-mulching seeder, such as Figures 1 to 9 As shown, the device includes a seed box, a fertilizer box on one side of the seed box, and mounting frames 1 fixedly installed at the bottom of both the seed box and the fertilizer box. A film-pressing and soil-covering mechanism is located in the middle of the mounting frame 2, and a film-covering adjustment assembly is located on one side of the mounting frame 1. The film-covering adjustment assembly includes the mounting frame 2, mounting plates 3, mounting shafts 4, retaining rings 5, telescopic columns 6, movable plates 7, a first fixed shaft 8, a second fixed shaft 9, and a limiting structure. The mounting frame 2 is fixedly installed on the mounting frame 1. Mounting plates 3 are fixedly connected to both ends of the bottom of the mounting frame 2. Mounting shafts 4 are fixedly connected between the mounting plates 3. Retaining rings 5 ​​are slidably connected to both ends of the mounting shaft 4, and the retaining rings 5 ​​are connected to the mounting plates via the telescopic columns 6. 3. Fixed connection: A movable plate 7 is provided on one side of the mounting plate 3. A first fixed shaft 8 is provided between the movable plate 7 and the retaining ring 5. A second fixed shaft 9 is slidably connected inside the first fixed shaft 8. The first fixed shaft 8 and the second fixed shaft 9 are located outside the mounting shaft 4. A limiting structure is provided on the mounting shaft 4, the first fixed shaft 8 and the second fixed shaft 9. The membrane pressing and soil covering mechanism includes a membrane pressing wheel 10, a connecting shaft, a membrane pressing frame, a soil covering plate 11 and a bracket. The membrane pressing wheel 10 is fixedly connected to the membrane pressing frame through the connecting shaft. The membrane pressing frame is fixedly installed on the fixed frame 2. The soil covering plate 11 is fixed on the fixed frame 2 through the bracket. The soil covering plate 11 is located on both sides of the membrane pressing wheel 10.

[0033] The movable plate 7 is fixedly connected to the first fixed shaft 8 on the side away from the retaining ring 5. The movable plate 7 is slidably connected to the outside of the mounting shaft 4. The mounting shaft 4 passes through the middle of the first fixed shaft 8. Both ends of the first fixed shaft 8 and the second fixed shaft 9 are provided with limiting openings 12. The mounting shaft at the bottom of the retaining ring 5 is provided with a mounting groove. The mounting groove communicates with the limiting opening 12 located at the retaining ring 5. The limiting structure is located in the mounting groove and the limiting opening 12 near the retaining ring 5.

[0034] The seed box and fertilizer box are fixedly installed via mounting frame 1 for easy sowing and fertilization. Mounting frame 2 and mounting plate 3 are connected to mounting frame 1, allowing mounting shaft 4 to be fixed on it for film covering. A connecting shaft and pressing frame facilitate the fixing of pressing rollers to mounting frame 2. A bracket facilitates the fixing of covering tray 11 to mounting frame 2. When mounting frame 1 moves, film covering can be performed, and pressing roller 10 presses the film to the ground. Covering tray 11 covers the film with soil, improving the covering effect. Initially, the limiting structure is completely located within mounting shaft 4. When different diameter film rolls are needed, the film roll is placed on mounting shaft 4, and telescopic column 6 supports limiting ring 5, allowing ring 5 to fit the sides of the film roll. Moving plate 7 then drives the first fixed shaft 8 and the second fixed shaft... 9 moves along the outer wall of the mounting shaft 4, causing the first fixed shaft 8 and the second fixed shaft 9 to move into the interior of the film roll, so that the outer wall of the first fixed shaft 8 or the second fixed shaft 9 is in contact with the inner wall of the film roll. At this time, the moving plate 7 moves to the side of the retaining ring 5, and the limiting port 12 of the first fixed shaft 8 or the second fixed shaft 9 near the moving plate 7 corresponds to the limiting port 12 on the mounting shaft 4. Then the limiting structure is activated, so that the limiting structure limits the position of the first fixed shaft 8 and the second fixed shaft 9 through the limiting port 12. This allows the movement of the first fixed shaft 8 and the second fixed shaft 9 to adjust the radius of the mounting shaft 4, increasing the speed of radius adjustment of the mounting shaft 4. This allows film rolls of different radii to be installed on the fixing frame 2, thus adapting to different film rolls, making the tension release of the film more uniform, avoiding wrinkles caused by excessive looseness or tears caused by excessive tightness due to tension fluctuations, improving the stability of the overall structure, and facilitating the improvement of the service life of the whole machine.

[0035] like Figures 3 to 5 As shown, the telescopic column 6 is located on the upper and lower sides of the first fixed shaft 8. A compression spring 13 is installed inside the telescopic column 6. The two ends of the compression spring 13 are fixedly connected to the mounting plate 3 and the retaining ring 5, respectively. A pull block 15 is fixedly connected to one side of the second fixed shaft 9.

[0036] The telescopic column 6 and compression spring 13 facilitate the installation of the retaining ring 5, allowing the retaining ring 5 to press firmly against the film roll and buffer the force on the retaining ring 5, thus improving the stability of the retaining ring 5. Moving the retaining ring 5 causes the telescopic column 6 to retract, which in turn compresses the compression spring 13, making it suitable for film rolls of different lengths and improving adaptability. The pull block 15 facilitates the movement of the second fixed shaft 9 out of the interior of the first fixed shaft 8, allowing the second fixed shaft 9 to fit against the inner wall of the matching film roll, thereby enabling the installation of film rolls of different sizes on the mounting shaft 4 for ease of use.

[0037] like Figures 7-8 As shown, the limiting structure includes a motor 16, a rotating rod, a moving block 17, a push plate 18, and a limiting block 19. The motor 16 is fixedly installed on the inner wall of the mounting groove. The output end of the motor 16 is fixedly connected to the rotating rod. One end of the rotating rod is rotatably connected to the inner wall of the mounting groove. The moving block 17 is rotatably connected to the rotating rod. One side of the moving block 17 is slidably connected to the inner wall of the mounting groove. The push plate 18 is hinged to one side of the moving block 17. One end of the push plate 18 is hinged to the limiting block 19. The limiting block 19 is inserted into the limiting port 12 located at the retaining ring 5.

[0038] By starting the motor 16, the rotating rod is driven to rotate along the inner wall of the mounting groove. Since one side of the moving block 17 is slidably connected to the inner wall of the mounting groove, the moving plate 7 can move back and forth along the rotating rod, thereby causing one end of the push plate 18 to deflect and push the limiting block 19 to move along the inner wall of the limiting opening 12. This allows the limiting block 19 to move into the limiting opening 12 on the first fixed shaft 8 or the second fixed shaft 9 and insert into it, thus limiting the first fixed shaft 8 or the second fixed shaft 9. This allows the film roll to be installed on the first fixed shaft 8 or the second fixed shaft 9 with different radii, making the tension of the film roll release more uniform and with greater differences. By moving the first fixed shaft 8 and the second fixed shaft 9, the radius of the mounting shaft 4 can be adapted to the needs of different planting areas, plot conditions and agronomic requirements for mulching operations, improving the adaptability of the equipment.

[0039] like Figures 5 to 7 As shown, one end of the push plate 18 extends through the mounting groove into the limiting opening 12. The limiting block 19 is slidably connected to the inner wall of the limiting opening 12. A first moving groove is provided in the middle of the mounting shaft 4. The first moving groove is located in the middle of the two mounting grooves. A fixing plate 20 is fixedly installed on the inner wall of the first moving groove. Electric push rods 21 are fixedly installed at both the upper and lower ends of the fixing plate 20. A limiting plate 22 is fixedly connected to the end of the electric push rod 21 away from the fixing plate 20. The limiting plate 22 is flush with the upper and lower sides of the mounting shaft 4. A second moving groove is provided on both sides of the limiting plate 22. An electric telescopic rod 23 is fixedly installed in the second moving groove. A slot 24 is provided on the side of the first fixing shaft 8 and the second fixing shaft 9 near the retaining ring 5. The slot 24 is located at the upper and lower ends of the first fixing shaft 8 and the second fixing shaft 9. One end of the electric telescopic rod 23 is inserted into the slot 24.

[0040] The mounting slot facilitates the installation of the motor 16, rotating rod, moving plate 7, and pushing plate 18. The motor 16, rotating rod, moving plate 7, and pushing plate 18 enable the limiting block 19 to fix the moved first fixed shaft 8 and second fixed shaft 9. Once the positions of the first fixed shaft 8 and second fixed shaft 9 are fixed, the outer wall of the first fixed shaft 8 or second fixed shaft 9 adheres to the inner wall of the film roll. The fixing plate 20 facilitates the installation of the electric push rod 21. The electric push rod 21 is then activated to push the limiting plate 22 away from the second moving slot, causing the limiting plate 22 to move out of the second moving slot. Both sides of the limiting plate 22 become flush with the first fixed shaft 8 or second fixed shaft 9. The electric telescopic rod 23 is then activated to extend and engage with the slot 24 on the first fixed shaft 8 or second fixed shaft 9, thus fixing the film roll to the first fixed shaft 8 or second fixed shaft 9 and preventing it from slipping off during movement, which would affect the coating effect.

[0041] like Figures 1 to 2 As shown, the top of the retaining ring 5 has a fixing hole 14, and a fixing rod 25 is inserted into the fixing hole 14. A protective plate 26 is fixedly installed on the top of the fixing rod 25. A connecting rod 27 is fixedly connected to one end of the protective plate 26. Both ends of the connecting rod 27 are fixedly connected to the bottom end of the fixing frame 2. The fixing rod 25 is located at both ends of the bottom of the protective plate 26. The protective plate 26 is located outside the mounting shaft 4, the first fixing shaft 8, or the second fixing shaft 9. The side of the mounting shaft 4 away from the mounting shaft 4 is arc-shaped.

[0042] The connecting rod 27 connects to the fixing frame 2, facilitating the installation of the protective plate 26 on one side of the film roll on the mounting shaft 4. The fixing rod 25 connects to the retaining ring 5, further enhancing the stability of the installation of the retaining ring 5 and the protective plate 26, preventing the retaining ring 5 from loosening and affecting the film roll's fixation. This facilitates the installation of the film roll, improving its stability. Simultaneously, the arc-shaped protective plate 26 protects and shields the first fixing shaft 8 or the second fixing shaft 9, the retaining ring 5, and the mounting shaft 4, preventing dust and sand from directly contacting the film roll, keeping the film surface clean and intact, and further improving the stable operation of the first fixing shaft 8 or the second fixing shaft 9 and the mounting shaft 4, thus enhancing stability.

[0043] Working principle of this invention:

[0044] Reference Figures 1 to 9As shown, in use, the film roll is installed on the mounting shaft 4, and the two ends of the film roll are pressed against the retaining rings 5, causing the telescopic column 6 to contract and drive the compression spring 13 to compress. The compression spring 13 allows the retaining rings 5 ​​to adhere tightly to both sides of the film roll, limiting its position. Initially, the limiting block 19 is located within the limiting opening 12 on the mounting shaft 4. When the film roll size matches the first fixed shaft 8, the moving plate 7 is pushed, causing the first fixed shaft 8 and the second fixed shaft 9 to move towards the film roll. When the moving plate 7 moves to the side of the retaining ring 5 and adheres to it, the first fixed shaft 8 drives the second fixed shaft 9 to move to both ends of the inner side of the film roll, and the outer wall of the first fixed shaft 8 adheres to the inner wall of the film roll. When the film roll size matches the second fixed shaft 9, the moving pull block 15 moves the second fixed shaft 9 to the outside of the first fixed shaft 8, and the second fixed shaft 9... The fixed shaft 9 moves to both ends inside the roll film, so that the outer wall of the second fixed shaft 9 fits against the inner wall of the roll film. After the first fixed shaft 8 or the second fixed shaft 9 has moved, the limiting port 12 of the first fixed shaft 8 and the second fixed shaft 9 near the moving plate 7 is opposite to the limiting port 12 on the mounting shaft 4. At this time, the motor 16 is started to drive the rotating rod to rotate along the inner wall of the mounting groove. Since one side of the moving block 17 is slidably connected to the inner wall of the mounting groove, the moving plate 7 can move back and forth along the rotating rod, thereby causing one end of the push plate 18 to deflect and push the limiting block 19 to move along the inner wall of the limiting port 12, so that the limiting block 19 moves into the limiting port 12 on the first fixed shaft 8 or the second fixed shaft 9 and inserts into it, thereby limiting the first fixed shaft 8 or the second fixed shaft 9, so that the roll film can be installed on the first fixed shaft 8 or the second fixed shaft 9 with different radii.

[0045] Next, install the connecting rod 27 on the fixing frame 2, so that the protective plate 26 is installed on the outside of the rolled film to protect the installed rolled film. Then, insert the fixing rod 25 connected to its bottom into the fixing hole 14 at the top of the retaining ring 5 to fix the retaining ring 5, so that the retaining ring 5 firmly fixes the rolled film. When the mounting frame 1 moves to sow, the film covering is also carried out at the same time. The film is pressed onto the soil by the film pressing wheel 10, and the soil covering plate 11 presses the shoveled soil onto the film, thereby completing the film covering.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A film-mulching seeder, comprising a seeding box, characterized in that: A fertilizer box is provided on one side of the seed box. Both the seed box and the fertilizer box are fixedly mounted on the bottom of the seed box and the bottom of the fertilizer box. A film covering adjustment component is provided on one side of the mounting frame. The film covering adjustment component includes a fixed frame, a mounting plate, a mounting shaft, a retaining ring, a telescopic column, a movable plate, a first fixed shaft, a second fixed shaft, and a limiting structure. The fixed frame is fixedly mounted on the mounting frame. Mounting plates are fixedly connected to both ends of the bottom of the fixed frame. A mounting shaft is fixedly connected between the mounting plates. Retaining rings are slidably connected to both ends of the mounting shaft. The retaining rings are fixedly connected to the mounting plates through the telescopic column. A movable plate is provided on one side of the mounting plate. A first fixed shaft is provided between the movable plate and the retaining ring. A second fixed shaft is slidably connected inside the first fixed shaft. The first fixed shaft and the second fixed shaft are located outside the mounting shaft. A limiting structure is provided on the mounting shaft, the first fixed shaft, and the second fixed shaft. The movable plate is fixedly connected to the first fixed shaft on the side away from the retaining ring. The movable plate is slidably connected to the outside of the mounting shaft. The mounting shaft passes through the middle of the first fixed shaft. Both ends of the first fixed shaft and the second fixed shaft are provided with limiting openings. The mounting shaft located at the bottom of the retaining ring is provided with a mounting groove. The mounting groove communicates with the limiting opening located at the retaining ring. The limiting structure is located in the mounting groove and the limiting opening near the retaining ring. The telescopic column is located on the upper and lower sides of the first fixed shaft. A compression spring is installed inside the telescopic column. The two ends of the compression spring are fixedly connected to the mounting plate and the retaining ring, respectively. A pull block is fixedly connected to one side of the second fixed shaft. The limiting structure includes a motor, a rotating rod, a moving block, a push plate, and a limiting block. The motor is fixedly installed on the inner wall of the mounting groove. The output end of the motor is fixedly connected to the rotating rod. One end of the rotating rod is rotatably connected to the inner wall of the mounting groove. The moving block is rotatably connected to the rotating rod. One side of the moving block is slidably connected to the inner wall of the mounting groove. The push plate is hinged to one side of the moving block. The limiting block is hinged to one end of the push plate. The limiting block is inserted into the limiting port located at the retaining ring. One end of the push plate extends through the mounting groove into the limiting opening. The limiting block is slidably connected to the inner wall of the limiting opening. A first moving groove is opened in the middle of the mounting shaft. The first moving groove is located in the middle of the mounting groove. A fixed plate is fixedly installed on the inner wall of the first moving groove. Electric push rods are fixedly installed at both the upper and lower ends of the fixed plate. A limiting plate is fixedly connected to the end of the electric push rod away from the fixed plate. The limiting plate is flush with the upper and lower sides of the mounting shaft. The limiting plate has a second moving groove on both sides, and an electric telescopic rod is fixedly installed in the second moving groove. The first fixed shaft and the second fixed shaft have slots on the side near the retaining ring. The slots are located at the upper and lower ends of the first fixed shaft and the second fixed shaft, and one end of the electric telescopic rod is inserted into the slot.

2. The film-mulching seeder according to claim 1, characterized in that: A membrane pressing and soil covering mechanism is provided in the middle of the fixed frame. The membrane pressing and soil covering mechanism includes: membrane pressing wheel, connecting shaft, membrane pressing frame, soil covering plate and support. The membrane pressing wheel is fixedly connected to the membrane pressing frame through the connecting shaft. The membrane pressing frame is fixedly installed on the fixed frame. The soil covering plate is fixed on the fixed frame through the support and is located on both sides of the membrane pressing wheel.

3. The film-mulching seeder according to claim 2, characterized in that: The top of the retaining ring has a fixing hole, into which a fixing rod is inserted. A protective plate is fixedly installed on the top of the fixing rod, and a connecting rod is fixedly connected to one end of the protective plate. Both ends of the connecting rod are fixedly connected to the bottom of the fixing frame.

4. The film-mulching seeder according to claim 3, characterized in that: The fixing rods are located at both ends of the bottom of the protective plate. The protective plate is located outside the mounting shaft, the first fixing shaft, and the second fixing shaft. The side of the protective plate away from the mounting shaft is arc-shaped.

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