Organic soil remediation device for farmland

Abstract

The invention relates to the field of organic soil remediation, and discloses an organic soil remediation device for farmland, the organic soil remediation device comprises a bottom plate and a fixed box, vertical plates are connected to the middles of the front side and the rear side of the upper surface of the bottom plate, the fixed box is mounted on the two vertical plates, and a crushing structure is arranged at the upper part in the fixed box; when soil is repaired, soil to be repaired can be directly stacked on the two sides of the device, the two sets of overturning material shoveling structures can be driven to synchronously overturn through one set of driving structure, material shoveling frames of the overturning material shoveling structures can be automatically driven to be inserted into the stacked soil in cooperation with the moving structure, and the device is convenient to use and high in practicability. And when the material shoveling frame is rotated to be in a vertical state, the cover plate can be automatically opened on the material shoveling frame in cooperation with the moving structure and the driving structure, soil in the material shoveling frame is automatically put into the fixing box for soil remediation work, and therefore operation is more labor-saving and convenient, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of organic soil remediation, and in particular to an organic soil remediation device for farmland. Background Technology

[0002] Soil organic pollution mainly includes chemical pesticide pollution, coking-related organic pollutant pollution and petroleum-related organic pollutant pollution. Remediation devices are used when remediating organic soil in farmland.

[0003] A search revealed that patent number CN219985734U discloses an organic farmland soil remediation device. During soil remediation, the soil is fed into a feeding shell, where it is initially cut by a cutting blade under gravity. The soil then passes through a crushing component, which further breaks it down. The soil then falls onto a screening frame, where a vibration component drives the frame to vibrate, which in turn vibrates the screen, screening out stones and other impurities. These impurities are then discharged through a rectangular opening, reducing the adverse effects of stones on the soil remediation process and enhancing the device's practicality.

[0004] However, in the actual repair process, the soil to be repaired needs to be shoveled up and put into the feeding shell. Since the overall size of the repair device is large, relying on manual shoveling and feeding is time-consuming and labor-intensive, and also reduces work efficiency. Therefore, there are areas for improvement. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides an organic soil remediation device for farmland.

[0006] The present invention provides an organic soil remediation device for farmland, which adopts the following technical solution:

[0007] An organic soil remediation device for farmland includes a base plate and a fixed box. Vertical plates are connected to the front, back, and middle sides of the base plate. The fixed box is installed on the two vertical plates. A crushing structure is provided at the top inside the fixed box. Feeding ports are provided at the top of the left and right sides of the fixed box. A screening structure is provided in the middle inside the fixed box. A tilting shovel structure is provided on the left and right sides of the base plate.

[0008] The tilting shovel structure includes two sets of fixed blocks on the left and right sides of the base plate. A tilting rod passes through the two fixed blocks in each set. A driving structure is set in the middle of the base plate. Two tilting plates are fixedly sleeved on each tilting rod. A movable plate is inserted into the end of each tilting plate away from the base plate. A movable structure is set between the two tilting plates. A shovel frame is installed at one end of each set of two movable plates. A cover plate is set on the shovel frame. A driving structure is set between the cover plate and the tilting plate.

[0009] The moving structure includes a first fixing bar connected between two flip plates in each group, a first cylinder mounted on the first fixing bar, one end of the output shaft of the first cylinder being connected to a push-pull rod, and one end of the push-pull rod being connected to the shovel frame.

[0010] Preferably, the driving structure includes two sets of guide grooves formed on two vertical plates, with a through plate moving through each of the two guide grooves in each set. Each through plate has a first driving groove. A second cylinder is installed on the front vertical plate, and a driving plate is installed at one end of the output shaft of the second cylinder. Both ends of the driving plate are fixedly connected to a driving rod, and the bottom end of the driving rod is movably inserted into the first driving groove. A fixed plate is connected between the two through plates on opposite sides. A first gear is fixedly sleeved in the middle of each flipping rod, and the first gear meshes with the teeth on the fixed plate.

[0011] Preferably, the driving structure includes a rotating shaft fixedly passing through one end of the cover plate, the rotating shaft rotating through the shovel frame, and second gears fixedly sleeved at both ends of the rotating shaft. A guide frame is provided on one side of the shovel frame near the second gear, and a Z-shaped strip moves through the guide frame. A driving strip is installed at one end of the Z-shaped strip, and the driving strip is provided with teeth that mesh with the second gear. The other end of the Z-shaped strip is connected to a second fixing strip, one end of the second fixing strip is fixedly passed through an insert rod, and a second driving groove is opened on the side of the flip plate, and one end of the insert rod is movably inserted into the second driving groove.

[0012] Preferably, the crushing structure includes two crushing rods that rotate through a fixed box. A crushing cylinder is fixedly fitted in the middle of each crushing rod. Crushing teeth are provided on the crushing cylinder. A third gear is fixedly fitted on the front end of each crushing rod. The two third gears are meshed together. A motor is installed on the rear side of the fixed box. One end of the motor output shaft is connected to one of the crushing rods. Two feed plates are provided on the inner wall of the fixed box above the crushing cylinder. A feeding gap is left between the two feed plates.

[0013] Preferably, the screening structure includes inner plates connected to the inner walls of the left and right sides of the fixed box, a screen plate is arranged directly above the inner plates, multiple springs are connected between the screen plate and the inner plates, a first discharge port is opened on the rear side of the fixed box, the screen plate is inclined downwards towards the first discharge port, a second discharge port is opened below the front of the fixed box, a discharge plate is arranged inside the fixed box below the screen plate, a stop strip is installed at the upper end of the discharge plate, the stop strip is attached to the screen plate, the discharge plate is inclined downwards towards the second discharge port, bottom strips are connected to the inner walls of the fixed box below the inner plates, baffle plates are connected to the left and right sides below the screen plate, the two baffle plates are respectively attached to the two bottom strips, and an intermittent lifting structure is provided between the bottom strips and the baffle plates.

[0014] Preferably, the intermittent lifting structure includes a vertical rod that rotates through the middle of the right bottom bar, a transmission cylinder fixedly sleeved on the vertical rod, a spiral blade provided on the side of the transmission cylinder, a fixed rod connected to the right baffle plate, a pressure cylinder rotatably sleeved on the fixed rod, and a transmission structure provided between the vertical rod and one of the crushing rods.

[0015] Preferably, the transmission structure includes a second bevel gear fixedly sleeved at the bottom end of the vertical rod, a first bevel gear meshing with the second bevel gear, the first bevel gear fixedly sleeved at one end of the transmission rod, the transmission rod rotating out of the fixed box, and pulleys fixedly sleeved at one end of the transmission rod and one end of one of the crushing rods respectively, with a belt tightly sleeved between the two pulleys.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. This invention, by setting up a flipping shovel structure, a driving structure, a moving structure, and a driving structure, allows the soil to be repaired to be directly piled on both sides of the device during soil remediation. A set of driving structures can drive two sets of flipping shovel structures to flip synchronously. With the help of the moving structure, the shovel frame of the flipping shovel structure can be automatically inserted into the piled soil. When the shovel frame rotates to a vertical position, the cover plate on the shovel frame can be automatically opened with the help of the moving structure and the driving structure, and the soil in the shovel frame can be automatically put into the fixed box for soil remediation. This not only makes the operation more labor-saving and convenient, but also improves work efficiency.

[0018] 2. This invention, by setting up a crushing structure, a screening structure, an intermittent lifting structure, and a transmission structure, allows the soil to be crushed after being placed into a fixed box. In conjunction with the screening structure, the repaired soil and stones can be sorted and discharged. Furthermore, with the intermittent lifting structure and transmission structure, the screen plate of the screening structure can be moved up and down simultaneously while the crushing structure is working, enabling automatic screening. The structure is simple and the function is practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an organic soil remediation device for farmland in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure at the bottom plate in an embodiment of the present invention;

[0021] Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A;

[0022] Figure 4 This is a schematic diagram of the structure of the tilting shovel in an embodiment of the present invention;

[0023] Figure 5 This is an embodiment of the present invention. Figure 4 Enlarged view of the structure at point B;

[0024] Figure 6 This is a structural schematic diagram of the fixed box in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure at the rear side of the fixed box in an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the fixed box in an embodiment of the present invention;

[0027] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of the structure at point C.

[0028] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Vertical plate; 3. Fixed box; 4. Feed port; 5. Fixed block; 6. Tilting rod; 7. Tilting plate; 8. Moving plate; 9. Shovel frame; 10. Cover plate; 11. First fixing strip; 12. First cylinder; 13. Second cylinder; 14. Driving plate; 15. Driving rod; 16. Through plate; 17. First driving groove; 18. Guide groove; 19. First gear; 20. Fixed plate; 21. Push-pull rod; 22. Rotating shaft; 23. Second gear; 24. Driving strip; 25. Z-shaped strip; 26. Guide frame; 27. Second... 28. Fixed bar; 29. ​​Second drive groove; 30. Insert rod; 31. Feed plate; 32. Crushing rod; 33. Crushing cylinder; 34. Motor; 35. Third gear; 36. Screen plate; 37. First discharge port; 38. Second discharge port; 39. Discharge plate; 40. Stop bar; 41. Inner plate; 42. Spring; 43. Baffle plate; 44. Bottom bar; 45. Vertical rod; 46. Transmission cylinder; 47. Spiral blade; 48. Fixed rod; 49. Pressure cylinder; 50. First bevel gear; 51. Transmission rod; 52. Belt; 53. Pulley; 54. Second bevel gear. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0030] This invention discloses an organic soil remediation device for farmland. (Refer to...) Figures 1-9 An organic soil remediation device for farmland includes a base plate 1 and a fixed box 3. Vertical plates 2 are connected to the middle of the front and rear sides of the base plate 1. The fixed box 3 is installed on the two vertical plates 2. A crushing structure is set in the upper part of the fixed box 3. Feeding ports 4 are opened in the upper part of the left and right sides of the fixed box 3. A screening structure is set in the middle of the fixed box 3. A tilting shovel structure is set in the left and right sides of the base plate 1.

[0031] The tilting shovel structure includes two sets of fixed blocks 5 on the left and right sides of the base plate 1. A tilting rod 6 rotates through the two fixed blocks 5 in each set. A drive structure is set in the middle of the base plate 1. Two tilting plates 7 are fixedly sleeved on each tilting rod 6. A movable plate 8 is inserted into the end of each tilting plate 7 away from the base plate 1. A movable structure is set between the two tilting plates 7. A shovel frame 9 is installed at one end of each set of two movable plates 8. A cover plate 10 is set on the shovel frame 9. A driving structure is set between the cover plate 10 and the tilting plate 7.

[0032] The moving structure includes a first fixing bar 11 connected between two flip plates 7 in each group, a first cylinder 12 mounted on the first fixing bar 11, one end of the output shaft of the first cylinder 12 connected to a push-pull rod 21, and one end of the push-pull rod 21 connected to the shovel frame 9.

[0033] The drive structure includes two sets of guide slots 18 on two vertical plates 2. Each set of two guide slots 18 has a through plate 16 that moves through it. Each through plate 16 has a first drive slot 17. A second cylinder 13 is installed on the front vertical plate 2. A drive plate 14 is installed at one end of the output shaft of the second cylinder 13. Both ends of the drive plate 14 are fixedly inserted through a drive rod 15. The bottom end of the drive rod 15 is movably inserted into the first drive slot 17. A fixed plate 20 is connected in the middle of the two through plates 16 on opposite sides. A first gear 19 is fixedly sleeved in the middle of each flipping rod 6. The first gear 19 meshes with the teeth on the fixed plate 20.

[0034] The driving structure includes a rotating shaft 22 fixedly passing through one end of the cover plate 10. The rotating shaft 22 rotates through the shovel frame 9. Second gears 23 are fixedly sleeved at both ends of the rotating shaft 22. A guide frame 26 is set on one side of the shovel frame 9 near the second gears 23. A Z-shaped strip 25 moves through the guide frame 26. A driving strip 24 is installed at one end of the Z-shaped strip 25. The driving strip 24 is provided with teeth that mesh with the second gears 23. The other end of the Z-shaped strip 25 is connected to a second fixing strip 27. One end of the second fixing strip 27 is fixedly passed through the insert rod 29. A second driving groove 28 is opened on the side of the flip plate 7. One end of the insertion rod 29 is inserted into the second drive groove 28. When repairing the soil, firstly, the second cylinder 13 is activated to drive the drive plate 14 and drive rod 15 to move as a whole. The drive rod 15 squeezes the wall of the first drive groove 17 on the through plate 16, pulling the two through plates 16 to move closer to each other in the guide groove 18 of the vertical plate 2. The fixed plate 20 and the first gear 19 drive the flipping rod 6 and the flipping plate 7 to rotate as a whole on the fixed block 5, thereby driving the shovel frame 9 to move down to the ground. Then, the first cylinder 1 on the first fixed bar 11 is activated. 2. The shovel frame 9 and the moving plate 8 are moved away from the base plate 1, thus inserting the shovel frame 9 into the piled soil and shoveling up the soil to be repaired. Then, the second cylinder 13 is activated, which drives the driving plate 14 and the driving rod 15 to move in the opposite direction. The driving rod 15 squeezes the wall of the first driving groove 17, pushing the two through plates 16 to move synchronously in opposite directions in the guide groove 18. Through the fixed plate 20 and the first gear 19, the flipping rod 6 and the flipping plate 7 are driven to rotate in the opposite direction, thereby rotating the shovel frame 9 to the feeding port 4 of the fixed box 3. At this point, the tilting plate 7 stops rotating, and the first cylinder 12 on the first fixing bar 11 is activated, continuing to drive the shovel frame 9 and the moving plate 8 to move as a whole. During the movement, the moving plate 8 drives one end of the insertion rod 29 to slide in the second driving groove 28 on the side of the tilting plate 7, thereby driving the second fixing bar 27, the Z-shaped bar 25 and the driving bar 24 to move as a whole. Through the second gear 23, the cover plate 10 is driven to rotate, thereby opening the cover plate 10 on the shovel frame 9 and automatically placing the shoveled soil into the fixed box 3 for repair. This operation is more labor-saving and convenient.

[0035] See Figures 6-9 The crushing structure includes two crushing rods 31 that rotate through the fixed box 3. A crushing cylinder 32 is fixedly sleeved in the middle of each crushing rod 31. Crushing teeth are provided on the crushing cylinder 32. A third gear 34 is fixedly sleeved on the front end of the crushing rod 31. The two third gears 34 are meshed and connected. A motor 33 is installed on the rear side of the fixed box 3. One end of the output shaft of the motor 33 is connected to one of the crushing rods 31. Two feed plates 30 are provided on the inner wall of the fixed box 3 above the crushing cylinder 32. A feeding gap is left between the two feed plates 30.

[0036] The screening structure includes an inner plate 40 connected to the inner walls of the left and right sides of the fixed box 3, a screen plate 35 set directly above the inner plate 40, multiple springs 41 connected between the screen plate 35 and the inner plate 40, a first discharge port 36 opened on the rear side of the fixed box 3, the screen plate 35 is inclined downward toward the first discharge port 36, a second discharge port 37 opened at the bottom of the front of the fixed box 3, a discharge plate 38 set inside the fixed box 3 below the screen plate 35, a stop strip 39 installed at the upper end of the discharge plate 38, the stop strip 39 is attached to the screen plate 35, the discharge plate 38 is inclined downward toward the second discharge port 37, bottom strips 43 are connected to the inner walls of the fixed box 3 below the inner plate 40, baffle plates 42 are connected to the left and right sides below the screen plate 35, the two baffle plates 42 are respectively attached to the two bottom strips 43, and an intermittent lifting structure is set between the bottom strips 43 and the baffle plates 42.

[0037] The intermittent lifting structure includes a vertical rod 44 that rotates through the middle of the bottom bar 43 on the right side, a transmission cylinder 45 that is fixedly sleeved on the vertical rod 44, a spiral blade 46 that is provided on the side of the transmission cylinder 45, a fixed rod 47 that is connected to the baffle plate 42 on the right side, a pressure cylinder 48 that is rotatably sleeved on the fixed rod 47, and a transmission structure that is provided between the vertical rod 44 and one of the crushing rods 31.

[0038] The transmission structure includes a second bevel gear 53 fixedly sleeved at the bottom of the vertical rod 44, with a first bevel gear 49 meshing on the second bevel gear 53. The first bevel gear 49 is fixedly sleeved at one end of the transmission rod 50, which rotates out of the fixed box 3. A pulley 52 is fixedly sleeved at one end of the transmission rod 50 and one end of one of the crushing rods 31, respectively. A belt 51 is tightly fitted between the two pulleys 52. During repair, the motor 33 is started, driving the two sets of crushing rods 31 and the crushing cylinder 32 to rotate as a whole via two third gears 34, crushing the lumpy soil placed in the fixed box 3. The crushed soil falls onto the sieve plate 35 for screening. Furthermore, when one of the crushing rods 31 rotates, it drives the transmission rod 50 to rotate via the belt 51 and pulley 52, and then the first bevel gear 49 and the second bevel gear... 53 drives the transmission cylinder 45 to rotate. When the spiral blade 46 on the transmission cylinder 45 rotates to the pressure cylinder 48, as the transmission cylinder 45 continues to rotate, it pushes the screen plate 35 to move upward from the stop bar 39. The stop bar 39 limits the screen plate 35, so that the rotating transmission cylinder 45 and the spiral blade 46 can be smoothly squeezed into the pressure cylinder 48. When the pressure cylinder 48 is disengaged from the spiral blade 46, the screen plate 35 moves downward to the stop bar 39 by the elastic force of the spring 41 and the weight of the screen plate 35 itself. The up and down movement of the screen plate 35 can perform automatic screening. The soil screened off the screen plate 35 is discharged from the second discharge port 37 by the discharge plate 38. The stones and other impurities screened off the screen plate 35 are discharged from the first discharge port 36. The materials are sorted and discharged, thus realizing the soil remediation work.

[0039] The implementation principle of an organic soil remediation device for farmland according to an embodiment of the present invention is as follows: First, the second cylinder 13 is activated to drive the driving plate 14 and the driving rod 15 to move as a whole. The driving rod 15 presses against the wall of the first driving groove 17 on the through plate 16, pulling the two through plates 16 closer together in the guide groove 18 of the vertical plate 2. The fixed plate 20 and the first gear 19 drive the flipping rod 6 and the flipping plate 7 to rotate on the fixed block 5, thereby moving the shovel frame 9 down to the ground. Next, the first cylinder 12 on the first fixed bar 11 is activated, driving the shovel frame 9 and the moving plate 8 to move away from the bottom plate 1, thus inserting the shovel frame 9 into the piled soil and shoveling up the soil to be remediated. Next, the second cylinder 13 is activated, causing the driving plate 14 and driving rod 15 to move in opposite directions. The driving rod 15, pressing against the wall of the first driving groove 17, pushes the two through plates 16 to move synchronously in opposite directions within the guide groove 18. Through the fixed plate 20 and the first gear 19, the flipping rod 6 and flipping plate 7 rotate in opposite directions, thus lifting the shovel frame 9 to the feeding port 4 of the fixed box 3. At this point, the flipping plate 7 stops rotating, and the first cylinder 12 on the first fixed bar 11 is activated, continuing to move the shovel frame 9 and moving plate 8 as a whole. During this movement, the moving plate 8 causes one end of the insertion rod 29 to slide in the second driving groove 28 on the side of the flipping plate 7, thereby driving the second fixed bar... 27. The Z-shaped bar 25 and the driving bar 24 move as a whole, driving the cover plate 10 to rotate via the second gear 23, thereby opening the cover plate 10 on the shovel frame 9 and automatically dropping the shoveled soil into the fixed box 3. During repair, the motor 33 is started, driving the two sets of crushing rods 31 and crushing cylinder 32 to rotate as a whole via the two third gears 34, crushing the lumpy soil dropped into the fixed box 3. The crushed soil falls onto the screen plate 35 for screening. When one of the crushing rods 31 rotates, it drives the transmission rod 50 to rotate via the belt 51 and pulley 52, which in turn drives the transmission cylinder 45 to rotate via the first bevel gear 49 and the second bevel gear 53. When the spiral blade 46 on the transmission cylinder 45 rotates to the pressure cylinder 4, When the transmission cylinder 45 continues to rotate, it pushes the screen plate 35 to move upward from the stop bar 39. The stop bar 39 limits the screen plate 35, allowing the rotating transmission cylinder 45 to smoothly drive the spiral blade 46 to squeeze into the pressure cylinder 48. When the pressure cylinder 48 disengages from the spiral blade 46, the screen plate 35 moves downward to the stop bar 39 using the elastic force of the spring 41 and the weight of the screen plate 35 itself. This up-and-down movement of the screen plate 35 enables automatic screening. The soil screened off the screen plate 35 is discharged from the second discharge port 37 through the discharge plate 38, while the stones and other impurities screened off the screen plate 35 are discharged from the first discharge port 36. This sorting and discharge process enables soil remediation.

[0040] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An organic soil remediation device for farmland, comprising a base plate (1) and a fixing box (3), characterized in that: The bottom plate (1) has vertical plates (2) connected to the middle of the front and rear sides. The fixed box (3) is installed on the two vertical plates (2). The fixed box (3) has a crushing structure in the upper part. The fixed box (3) has a feeding port (4) in the upper part of the left and right sides. The fixed box (3) has a screened material structure in the middle. The bottom plate (1) has a tilting shovel structure in the left and right sides. The tilting shovel structure includes two sets of fixed blocks (5) on the left and right sides of the base plate (1). A tilting rod (6) rotates through the two fixed blocks (5) in each set. A driving structure is set in the middle of the base plate (1). Two tilting plates (7) are fixedly sleeved on each tilting rod (6). A movable plate (8) is inserted into the end of each tilting plate (7) away from the base plate (1). A movable structure is set between the two tilting plates (7). A shovel frame (9) is installed at one end of each set of two movable plates (8). A cover plate (10) is set on the shovel frame (9). A driving structure is set between the cover plate (10) and the tilting plate (7). The moving structure includes a first fixing bar (11) connected between two flip plates (7) in each group, a first cylinder (12) is installed on the first fixing bar (11), one end of the output shaft of the first cylinder (12) is connected to a push-pull rod (21), and one end of the push-pull rod (21) is connected to the shovel frame (9).

2. The organic soil remediation device for farmland according to claim 1, characterized in that: The drive structure includes two sets of guide grooves (18) on two vertical plates (2). A through plate (16) moves through each of the two guide grooves (18). A first drive groove (17) is provided on each through plate (16). A second cylinder (13) is installed on the front vertical plate (2). A drive plate (14) is installed at one end of the output shaft of the second cylinder (13). A drive rod (15) is fixedly passed through both ends of the drive plate (14). The bottom end of the drive rod (15) is movably inserted into the first drive groove (17). A fixed plate (20) is connected in the middle of the two through plates (16) on opposite sides. A first gear (19) is fixedly sleeved in the middle of each flipping rod (6). The first gear (19) meshes with the teeth on the fixed plate (20).

3. The organic soil remediation device for farmland according to claim 1, characterized in that: The driving structure includes a rotating shaft (22) fixedly passing through one end of the cover plate (10). The rotating shaft (22) rotates through the shovel frame (9). A second gear (23) is fixedly sleeved at both ends of the rotating shaft (22). A guide frame (26) is provided on one side of the shovel frame (9) near the second gear (23). A Z-shaped strip (25) moves through the guide frame (26). A driving strip (24) is installed at one end of the Z-shaped strip (25). The driving strip (24) is provided with teeth that mesh with the second gear (23). The other end of the Z-shaped strip (25) is connected to a second fixing strip (27). One end of the second fixing strip (27) is fixedly passed through the insert rod (29). A second driving groove (28) is opened on the side of the flip plate (7). One end of the insert rod (29) is movably inserted into the second driving groove (28).

4. The organic soil remediation device for farmland according to claim 1, characterized in that: The crushing structure includes two crushing rods (31) that rotate through the fixed box (3). A crushing cylinder (32) is fixedly fitted in the middle of each crushing rod (31). Crushing teeth are provided on the crushing cylinder (32). A third gear (34) is fixedly fitted on the front end of the crushing rod (31). The two third gears (34) are meshed together. A motor (33) is installed on the rear side of the fixed box (3). One end of the output shaft of the motor (33) is connected to one of the crushing rods (31). Two feed plates (30) are provided on the inner wall of the fixed box (3) above the crushing cylinder (32). A feeding gap is left between the two feed plates (30).

5. The organic soil remediation device for farmland according to claim 1, characterized in that: The screening structure includes inner plates (40) connected to the inner walls of the left and right sides of the fixed box (3). A screen plate (35) is installed directly above the inner plates (40). Multiple springs (41) are connected between the screen plate (35) and the inner plates (40). A first discharge port (36) is opened on the rear side of the fixed box (3). The screen plate (35) is inclined downward toward the first discharge port (36). A second discharge port (37) is opened below the front of the fixed box (3). A discharge plate (38) is installed inside the fixed box (3) below the screen plate (35). A stop bar (39) is installed at the upper end of the feeding plate (38). The stop bar (39) is attached to the screen plate (35). The feeding plate (38) is inclined downward towards the second feeding port (37). The inner walls of the fixed box (3) on both sides are connected to the bottom strip (43) below the inner plate (40). The left and right sides of the screen plate (35) are connected to the baffle plate (42). The two baffle plates (42) are respectively attached to the two bottom strips (43). An intermittent lifting structure is set between the bottom strip (43) and the baffle plate (42).

6. The organic soil remediation device for farmland according to claim 5, characterized in that: The intermittent lifting structure includes a vertical rod (44) that rotates through the middle of the bottom bar (43) on the right side. A transmission cylinder (45) is fixedly sleeved on the vertical rod (44). A spiral blade (46) is provided on the side of the transmission cylinder (45). A fixed rod (47) is connected to the baffle plate (42) on the right side. A pressure cylinder (48) is rotatably sleeved on the fixed rod (47). A transmission structure is provided between the vertical rod (44) and one of the crushing rods (31).

7. An organic soil remediation device for farmland according to claim 6, characterized in that: The transmission structure includes a second bevel gear (53) fixedly sleeved at the bottom of the vertical rod (44), a first bevel gear (49) meshing with the second bevel gear (53), the first bevel gear (49) fixedly sleeved at one end of the transmission rod (50), the transmission rod (50) rotating through the fixed box (3), and pulleys (52) fixedly sleeved at one end of the transmission rod (50) and one end of one of the crushing rods (31), respectively, and a belt (51) is tightly sleeved between the two pulleys (52).

Images