A soil improvement tillage device based on ecological farmland

Abstract

The present invention belongs to the field of soil tillage, and in particular, relates to a soil improvement tillage device based on ecological farmland, including a fixed seat, a connecting frame is arranged on the fixed seat, an adjusting component is arranged on the connecting frame, a tillage mechanism is connected to the adjusting component, and a supporting mechanism is arranged between the tillage mechanism and the connecting frame. The tillage mechanism includes a first connecting arm and a second connecting arm that are rotatably connected to each other and are in an X shape, the first connecting arm and the second connecting arm are staggered up and down, the ends of the first connecting arm and the second connecting arm close to the fixed seat are both connected to the adjusting component, a transmission component is arranged between the first connecting arm and the second connecting arm, and the upper side of the first connecting arm is provided with two strip-shaped and mutually symmetrical first sliding holes along its length direction. The present invention can quickly adjust the spacing of the tillage knives according to the different tillage depths of the farmland under the premise of ensuring stability, which saves more time and effort and improves work efficiency and quality.

Description

Technical Field

[0001] The invention belongs to the field of soil tillage, and in particular relates to a soil improvement tillage device based on ecological farmland. Background Art

[0002] Tillage is an indispensable measure in agricultural production. It helps to improve soil structure, mix fertilizers, eliminate weeds and pests, regulate soil temperature and moisture, and improve pH.

[0003] For soils in different regions, such as heavy clay soil, sandy soil, saline-alkali land, etc., the tillage depth has a significant impact on the working efficiency and resistance of the tiller. When deeper soil needs to be tilled, the insertion depth of the shovel blade increases, resulting in a significant increase in the resistance encountered by each row of tillage blades. In order to reduce the resistance of the entire device, it is usually necessary to reduce the spacing between a row of tillage blades, thereby reducing the load shared by each shovel blade. On the contrary, when performing shallow tillage, since the resistance is relatively small, the spacing between the tillage blades can be appropriately increased to improve the tillage efficiency.

[0004] The existing tilling devices have the following defects when in use: 1. At present, each tilling blade on the tilling machine is fixed to the fixing frame by bolts, and in order to ensure the fixing strength, each bolt usually needs to be repeatedly confirmed by the staff after being fixed. This process is not only time-consuming and labor-intensive, but also reduces the working efficiency; 2. The tilling blades on the existing tilling machines are usually fixedly installed on a connecting arm, and then the connecting arm is fixedly connected to the tractor. Since the connecting arm needs to withstand very large pressure when working, the stability of the tilling device will be reduced during operation, affecting the tilling quality. Summary of the invention

[0005] In view of the above problems, the embodiment of the present application provides a soil improvement tillage device based on ecological farmland, which can quickly adjust the spacing between tillage blades according to the different tillage depths of the farmland while ensuring stability, thereby saving time and labor and improving work efficiency and quality.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: The present invention provides a soil improvement and tillage device based on ecological farmland, comprising a fixed seat, a connecting frame is arranged on the fixed seat, an adjustment component is arranged on the connecting frame, a tillage mechanism is connected to the adjustment component, and a support mechanism is arranged between the tillage mechanism and the connecting frame. The tillage mechanism comprises a first connecting arm and a second connecting arm that are rotatably connected to each other and are in an X shape, the first connecting arm and the second connecting arm are staggered up and down, the first connecting arm and the second connecting arm are connected to the adjustment component at one end close to the fixed seat, and a transmission component is arranged between the first connecting arm and the second connecting arm. The upper side of the first connecting arm is provided with two strip-shaped and mutually symmetrical first sliding holes along its length direction, a plurality of sliding seats are slidably arranged in the first sliding hole, a tillage component is arranged on the lower side of the sliding seat, a spring is fixedly arranged between the opposite side walls of two adjacent sliding seats, a transmission plate is rotatably arranged on the upper side of the sliding seat, and the side of the transmission plate away from the corresponding sliding seat is rotatably connected to the side wall of the second connecting arm. The adjusting mechanism drives the first connecting arm and the second connecting arm to rotate, and controls the transmission plate to drive the corresponding sliding seat to move along the first sliding hole to drive the tilling assembly to move.

[0007] According to a favorable embodiment, a U-shaped sliding sleeve is fixedly provided on the lower side of the sliding seat, and two pins of the sliding sleeve are slidably connected to the left and right side walls of the first connecting arm, and guide plates are fixedly provided on the left and right side walls of the first connecting arm, and guide grooves matching the guide plates are provided on the side walls opposite to the two pins of the sliding sleeve.

[0008] According to a preferred embodiment, the first connecting arm and the second connecting arm are jointly provided with a guide bar with an arc-shaped structure at one end away from the fixed seat, and the guide bar is connected to the supporting mechanism, and the upper part of the guide bar is provided with two second sliding holes symmetrically arranged on the left and right, and guide columns are slidably arranged in the second sliding holes, and the lower ends of the two guide columns are fixedly connected to one end of the first connecting arm and the second connecting arm respectively, and a plurality of locking holes are provided on the inner concave side wall of the guide bar, and the plurality of locking holes are evenly and symmetrically distributed on the left and right, and the surface of the guide column is threadedly connected with a first locking bolt, and the first locking bolt is rotatably arranged in the corresponding locking hole.

[0009] According to an advantageous embodiment, a plurality of rake rods evenly distributed along the arc surface and in an L-shaped structure are fixedly arranged on the outer convex side wall of the guide strip, and the lower end of the rake rods is arranged in a conical shape.

[0010] According to a favorable embodiment, the tilling assembly includes a column fixedly connected to the lower side of the sleeve, a first connecting plate is fixedly provided on the rear side of the column, a diagonal support plate is fixedly provided between the upper side wall of the first connecting plate and the rear side wall of the column, a slot is opened on the right side wall of the first connecting plate, a second connecting plate is slidably inserted in the slot, a tilling knife is fixedly connected to the side of the second connecting plate away from the slot, and the first connecting plate and the second connecting plate are fixedly connected by bolts.

[0011] According to a favorable embodiment, the connecting frame includes two sliding columns which are slidably arranged on a fixed seat and are symmetrical on the left and right. The front side of the sliding column is provided with a plurality of locking grooves evenly distributed along its length direction. The surface thread of the fixed seat is provided with two second locking bolts which are symmetrical on the left and right. One end of the second locking bolt is slidably inserted into the corresponding locking groove. The lower sides of the two sliding columns are commonly fixedly connected with a slide rail, and the adjustment assembly is arranged on the lower side of the slide rail.

[0012] According to a favorable embodiment, the adjustment assembly includes two ear plates fixedly arranged on the lower side of the slide rail and symmetrically arranged on the left and right, a first screw rod is arranged between the two ear plates for common rotation, the first screw rod is provided with two threaded sections with opposite threads and the two threaded sections are threadedly connected with a first slider, the front sides of the two first sliders are respectively hinged to one end of the first connecting arm and the second connecting arm, and a rotating handle is fixedly connected to either end of the first screw rod.

[0013] According to a preferred embodiment, the support mechanism includes a support bar fixedly connected to the front side of the fixed seat, a lifting plate is fixedly arranged on the upper side of the support bar and close to the front side, and the support bar is provided with two connecting components along its length direction, and the two connecting components are respectively connected to the second connecting arm and the guide bar.

[0014] According to a favorable embodiment, two third sliding holes are opened on the upper side of the support bar along its length direction, and the connecting assembly includes a second sliding block slidably arranged in the third sliding hole, a second screw is threadedly connected to the second sliding block, and a rotating wheel is fixedly connected to the upper end of the second screw, the lower end of the second screw located on the front side is rotatably connected to the upper side of the guide bar, and the lower end of the second screw located on the rear side is rotatably connected to the upper side of the second connecting arm.

[0015] According to a favorable embodiment, one end of the lifting plate close to the fixing seat is fixedly connected to the external tractor via a mounting seat, and the rear side of the fixing seat is fixedly connected to the external tractor via two left-right symmetrical connecting columns.

[0016] Compared with the prior art, the soil improvement tillage device based on ecological farmland provided by the embodiment of the present invention has the following beneficial effects: 1. In the present invention, the tillage mechanism provided can cooperate with the adjustment component to quickly adjust the spacing of the tillage knives according to the different tillage depths of the farmland, which saves time and labor and improves work efficiency.

[0017] 2. In the present invention, the guide strips are coordinated with the supporting mechanism and the tilling mechanism, which not only facilitates the adjustment of the height of the tilling assembly, but also improves the stability of the first connecting arm and the second connecting arm in the tilling mechanism after rotation, thereby ensuring the quality of the tilling process of the farmland.

[0018] 3. In the present invention, a plurality of rakes are also provided on the guide bar, which can scatter the turned soil after the tillage assembly turns over the farmland soil, thereby further improving the quality of soil tillage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an external first-view stereoscopic structural diagram of the present invention.

[0020] Figure 2 It is an external second-viewing perspective stereoscopic structure diagram of the present invention.

[0021] Figure 3 It is a top plan structural diagram of the present invention as a whole.

[0022] Figure 4 It is the main plan view structural diagram of the whole invention.

[0023] Figure 5 It is an external three-dimensional structural diagram of the fixing mechanism in the present invention.

[0024] Figure 6 It is a partial structural diagram of the fixing mechanism in the present invention.

[0025] Figure 7 It is an external three-dimensional structural diagram of the tilling assembly in the present invention.

[0026] Figure 8 It is a schematic diagram of the connection between the guide bar, the supporting mechanism and the fixing mechanism in the present invention.

[0027] Fig. 9 It is a schematic diagram of the connection between the connecting component and the supporting bar in the present invention.

[0028] The accompanying drawings are as follows: 1. fixed seat; 2. connecting frame; 21. sliding column; 22. second locking bolt; 23. sliding rail; 3. adjusting assembly; 31. ear plate; 32. first screw rod; 33. first slider; 34. rotating handle; 4. tilling mechanism; 41. first connecting arm; 42. second connecting arm; 43. sliding seat; 44. spring; 45. transmission plate; 46. tilling assembly; 461. column; 462. first connecting plate; 463. diagonal support plate; 464. second connecting plate; 465. tilling knife; 5. supporting mechanism; 51. supporting bar; 52. lifting plate; 53. connecting assembly; 531. second slider; 532. second screw rod; 533. rotating wheel; 6. rake rod; 7. sliding sleeve; 8. guide plate; 9. guide bar; 10. guide column; 11. first locking bolt. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Fig. 9 The present application is further described in detail.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A soil improvement tillage device based on ecological farmland includes a fixed seat 1, the rear side of the fixed seat 1 is fixedly connected to an external tractor through two left-right symmetrical connecting columns, a connecting frame 2 is provided on the fixed seat 1, an adjusting component 3 is provided on the connecting frame 2, a tillage mechanism 4 is connected to the adjusting component 3, and a supporting mechanism 5 is provided between the tillage mechanism 4 and the connecting frame 2. After being connected to an external tractor through the connecting frame 2 and the supporting mechanism 5, the tillage mechanism 4 is supported together, and the tillage mechanism 4 can till the farmland under the drive of the external tractor.

[0031] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6The tillage mechanism 4 includes a first connecting arm 41 and a second connecting arm 42 which are rotatably connected to each other and are in an X shape. The first connecting arm 41 and the second connecting arm 42 are staggered up and down. The ends of the first connecting arm 41 and the second connecting arm 42 close to the fixed seat 1 are both connected to the adjustment assembly 3. Two strip-shaped and mutually symmetrical first sliding holes are provided on the upper side of the first connecting arm 41 along its length direction. A plurality of sliding seats 43 are slidably arranged in the first sliding holes. A tillage assembly 46 is arranged on the lower side of the sliding seat 43. A spring 44 is fixedly arranged between the opposite side walls of two adjacent sliding seats 43. A transmission plate 45 is rotatably arranged on the upper side of the sliding seat 43. The lengths of all the transmission plates 45 on the first connecting arm 41 are sequentially increased starting from the central area of ​​the first connecting arm 41. The side of the transmission plate 45 away from the corresponding sliding seat 43 is rotatably connected to the side wall of the second connecting arm 42. A U-shaped sliding sleeve 7 is fixedly disposed on the lower side of the slide 43, and two pins of the sliding sleeve 7 are slidably connected to the left and right side walls of the first connecting arm 41, and guide plates 8 are fixedly disposed on the left and right side walls of the first connecting arm 41, and guide grooves matching the guide plates 8 are provided on the side walls opposite to the two pins of the sliding sleeve 7. The spring 44 can increase the stress between two adjacent slides 43, so that the slide 43 can slide when driven by the transmission plate 45.

[0032] In order to facilitate the adjustment of the spacing of the tilling components 46 according to the tilling depth requirements, the rear ends of the first connecting arm 41 and the second connecting arm 42 can be rotated while approaching each other through the adjusting component 3. The rotation of the second connecting arm 42 can drive the transmission plate 45 to rotate relative to the first connecting arm 41, thereby pulling the sliding seat 43 rotatably connected to the transmission plate 45 toward the center position of the first connecting arm 41. Since the lengths of the transmission plates 45 are different, when the rotation angles of the transmission plates 45 are the same, the sliding seat 43 that is farther away from the center area of ​​the first connecting arm 41 can slide toward the center area of ​​the first connecting arm 41 for a longer distance, and finally all the tilling components 46 are contracted toward the center area of ​​the first connecting arm 41. The effective working surface formed by all the tilling components 46 after contraction is reduced. When deep tillage is performed, sufficient power can be guaranteed to meet the deep tillage requirements. On the contrary, when only shallow tillage is required, the power requirement is reduced. At this time, all the tilling components 46 can be restored to their initial positions through the adjusting component 3 to expand the effective working surface formed by all the tilling components 46, thereby improving the working efficiency.

[0033] See also Figure 1 and Figure 8The first connecting arm 41 and the second connecting arm 42 are provided with a guide bar 9 with an arc-shaped structure at one end away from the fixed seat 1. The guide bar 9 is connected to the support mechanism 5. The upper part of the guide bar 9 is provided with two second sliding holes symmetrically arranged on the left and right. A guide column 10 is slidably arranged in the second sliding hole. The lower ends of the two guide columns 10 are respectively fixedly connected to one end of the first connecting arm 41 and the second connecting arm 42. A plurality of locking holes are provided on the inner concave side wall of the guide bar 9. The plurality of locking holes are evenly and symmetrically distributed on the left and right. The surface of the guide column 10 is threadedly connected with a first locking bolt 11. The first locking bolt 11 is movably arranged in the corresponding locking hole. A plurality of rake rods 6 evenly distributed along the arc surface and in an L-shaped structure are fixedly arranged on the outer convex side wall of the guide bar 9. The lower end of the rake rod 6 is set to a cone shape.

[0034] In order to further improve the tillage effect, in the working state, the first connecting arm 41 and the second connecting arm 42 are fixed to the guide bar 9 by the first locking bolt 11, so as to improve the stability of the first connecting arm 41 and the second connecting arm 42 during operation. At the same time, the rake rod 6 connected to the guide bar 9 can further push away the blocky soil after the tillage assembly 46 turns over the soil, so as to make the soil looser and improve the tillage effect. When adjusting the tillage assembly 46 later, it is only necessary to remove the first locking bolt 11, and the first connecting arm 41 and the second connecting arm 42 can be adjusted by the adjustment assembly 3.

[0035] See also Figure 6 and Figure 7 The tillage assembly 46 includes a column 461 fixedly connected to the lower side of the sliding sleeve 7, a first connecting plate 462 is fixedly arranged on the rear side of the column 461, a diagonal support plate 463 is fixedly arranged between the upper side wall of the first connecting plate 462 and the rear side wall of the column 461, a slot is provided on the right side wall of the first connecting plate 462, a second connecting plate 464 is slidably inserted in the slot, a tillage blade 465 is fixedly connected to the side of the second connecting plate 464 away from the slot, and the first connecting plate 462 and the second connecting plate 464 are fixedly connected by bolts. The triangular structure formed by the diagonal support plate 463, the first connecting plate 462 and the column 461 makes the connection more stable, and the tillage blade 465 is fixed by bolts after being inserted into the first connecting plate 462 through the second connecting plate 464, so as to facilitate subsequent replacement.

[0036] See also Figure 1The connecting frame 2 includes two sliding columns 21 slidably arranged on the fixing seat 1 and symmetrically arranged on both sides. The front side of the sliding column 21 is provided with a plurality of locking grooves evenly distributed along the length direction thereof. The surface of the fixing seat 1 is threadedly connected with two second locking bolts 22 symmetrically arranged on both sides. One end of the second locking bolt 22 is slidably inserted into the corresponding locking groove. The lower sides of the two sliding columns 21 are fixedly connected with a slide rail 23. The adjustment assembly 3 is arranged on the lower side of the slide rail 23. The tillage mechanism 4 is supported by the connecting frame 2, and the sliding column 21 is fixed to the fixing seat 1 by the second locking bolt 22. When adjusting the height of the tillage assembly 46 later, the height can be adjusted synchronously by disassembling and assembling the second locking bolt 22.

[0037] See also Figure 1 and Figure 2 The adjustment assembly 3 includes two ear plates 31 fixedly arranged at the lower side of the slide rail 23 and symmetrically arranged on the left and right sides. A first screw rod 32 is arranged between the two ear plates 31 for common rotation. The first screw rod 32 is provided with two threaded sections with opposite threads and the two threaded sections are threadedly connected with a first slider 33. The front sides of the two first sliders 33 are respectively hinged to one end of the first connecting arm 41 and the second connecting arm 42. A rotating handle 34 is fixedly connected to any end of the first screw rod 32. By rotating the rotating handle 34 to rotate the first screw rod 32, the two first sliders 33 can be moved closer to or away from each other, thereby driving the first connecting arm 41 and the second connecting arm 42 to rotate relative to each other.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Fig. 9 The support mechanism 5 includes a support bar 51 fixedly connected to the front side of the fixed seat 1, and a lifting plate 52 is fixedly arranged on the upper side of the support bar 51 and near the front side. The end of the lifting plate 52 near the fixed seat 1 is fixedly connected to the external tractor through the mounting seat. The support bar 51 is provided with two connecting components 53 along its length direction, and the two connecting components 53 are respectively connected to the second connecting arm 42 and the guide bar 9. Two third sliding holes are provided on the upper side of the support bar 51 along its length direction. The connecting component 53 includes a second slider 531 slidably arranged in the third sliding hole, and a second screw rod 532 is threadedly connected to the second slider 531. The upper end of the second screw rod 532 is fixedly connected to a rotating wheel 533, and the lower end of the second screw rod 532 located on the front side is rotatably connected to the upper side of the guide bar 9, and the lower end of the second screw rod 532 located on the rear side is rotatably connected to the upper side of the second connecting arm 42. The first screw rod 32 and the second screw rod 532 may be equipped with a fender or other protective device to prevent the surface from being splashed with mud. The fender or other protective device is not shown in this solution.

[0039] In order to ensure the stability of the tilling mechanism 4 and facilitate the adjustment of the height of the tilling mechanism 4, the second connecting arm 42 and the guide bar 9 are connected and supported by the two second screws 532 on the support bar 51, and a triangular stable structure is formed between the support bar 51, the external tractor and the lifting plate 52, and the interaction between the three groups is more stable. When the height of the tilling mechanism 4 needs to be adjusted, the second locking bolt 22 is first removed so that the connecting frame 2 can slide relative to the fixed seat 1, and then the two second screws 532 are rotated forward or reversely at the same time to make the tilling mechanism 4 drive the tilling assembly 46 to move up or down. After rotating to the predetermined position, the second locking bolt 22 can be installed on the fixed seat 1 again and plugged into the corresponding locking groove on the sliding column 21.

[0040] During specific operation, the fixed seat 1 is fixed to the external tractor through the connecting column, and the support bar 51 on the supporting mechanism 5 is fixed to the fixed seat 1, and the lifting plate 52 is fixed to the external tractor to form a stable supporting structure. Under the drive of the external tractor, the tilling knife 465 is driven to move to perform tillage operations on the farmland. When deep tillage is required, the first screw rod 32 is driven to rotate by turning the handle 34, and the first connecting arm 41 and the second connecting arm 42 are driven to rotate, so that the slide seat 43 on the first connecting arm 41, which was originally in a dispersed state, is retracted, so that the tilling knife 465 corresponding to the slide seat 43 can be retracted and moved closer, and then the second locking bolt 22 on the fixed seat 1 is removed to release the lock on the connecting frame 2, and then the two second screw rods 532 are rotated in the opposite direction at the same time so that the tilling mechanism 4 drives the tilling knife 465 to move down a certain distance to perform deep tillage of the farmland.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A soil improvement and tillage device based on ecological farmland, comprising a fixing seat, characterized in that: The fixing seat is provided with a connecting frame, the connecting frame is provided with an adjusting component, the adjusting component is connected with a tilling mechanism, and a supporting mechanism is provided between the tilling mechanism and the connecting frame; The tilling mechanism comprises a first connecting arm and a second connecting arm which are rotatably connected to each other and are in an X shape, the first connecting arm and the second connecting arm are staggered up and down, one end of the first connecting arm and the second connecting arm close to the fixed seat is connected to the adjustment assembly, a transmission assembly is arranged between the first connecting arm and the second connecting arm, the upper side of the first connecting arm is provided with two strip-shaped and mutually symmetrical first sliding holes along its length direction, a plurality of sliding seats are slidably arranged in the first sliding holes, a tilling assembly is arranged on the lower side of the sliding seat, a spring is fixedly arranged between the opposite side walls of two adjacent sliding seats, a transmission plate is rotatably arranged on the upper side of the sliding seat, and the side of the transmission plate away from the corresponding sliding seat is rotatably connected to the side wall of the second connecting arm; the lengths of all the transmission plates on the first connecting arm increase in sequence starting from the central area of ​​the first connecting arm; The adjusting component drives the first connecting arm and the second connecting arm to rotate, controls the transmission plate to drive the corresponding sliding seat to move along the first sliding hole, and drives the tilling component to move; The first connecting arm and the second connecting arm are jointly provided with an arc-shaped guide bar at one end away from the fixing seat, and a plurality of L-shaped rake rods are fixedly provided on the outer convex side wall of the guide bar and are evenly distributed along the arc surface; The supporting mechanism includes a supporting bar fixedly connected to the front side of the fixing seat, a lifting plate is fixedly arranged on the upper side of the supporting bar and close to the front side, the supporting bar is provided with two connecting components along its length direction, the two connecting components are respectively connected to the second connecting arm and the guide bar, one end of the lifting plate close to the fixing seat is fixedly connected to the external tractor through the mounting seat, and a triangular stable structure is formed between the supporting bar, the external tractor and the lifting plate.

2. The soil improvement and tillage device based on ecological farmland according to claim 1 is characterized in that: A U-shaped sliding sleeve is fixedly provided on the lower side of the sliding seat, and the two pins of the sliding sleeve are slidably connected to the left and right side walls of the first connecting arm, and guide plates are fixedly provided on the left and right side walls of the first connecting arm, and guide grooves matching the guide plates are opened on the side walls opposite to the two pins of the sliding sleeve.

3. The soil improvement tillage device based on ecological farmland according to claim 1 is characterized in that: The guide bar is connected to the supporting mechanism, and two second sliding holes symmetrically arranged on the upper part of the guide bar are provided, and guide posts are slidably arranged in the second sliding holes, and the lower ends of the two guide posts are fixedly connected to one end of the first connecting arm and the second connecting arm respectively, and a plurality of locking holes are provided on the inner concave side wall of the guide bar, and the plurality of locking holes are evenly and symmetrically distributed on the left and right, and a first locking bolt is threadedly connected to the surface of the guide post, and the first locking bolt is movably arranged in the corresponding locking hole.

4. The soil improvement and tillage device based on ecological farmland according to claim 3 is characterized in that: The lower end of the rake rod is configured to be conical.

5. The soil improvement tillage device based on ecological farmland according to claim 2 is characterized in that: The tilling assembly includes a column fixedly connected to the lower side of the sliding sleeve, a first connecting plate fixedly arranged on the rear side of the column, a diagonal support plate fixedly arranged between the upper side wall of the first connecting plate and the rear side wall of the column, a slot is opened on the right side wall of the first connecting plate, a second connecting plate is slidably inserted in the slot, a tilling knife is fixedly connected to the side of the second connecting plate away from the slot, and the first connecting plate and the second connecting plate are fixedly connected by bolts.

6. The soil improvement and tillage device based on ecological farmland according to claim 1 is characterized in that: The connecting frame includes two sliding columns which are slidably arranged on a fixed seat and are symmetrical on the left and right. The front side of the sliding column is provided with a plurality of locking grooves evenly distributed along its length direction. The surface of the fixed seat is threadedly connected with two second locking bolts which are symmetrical on the left and right. One end of the second locking bolt is slidably inserted into the corresponding locking groove. The lower sides of the two sliding columns are fixedly connected with a slide rail, and the adjustment component is arranged on the lower side of the slide rail.

7. The soil improvement and tillage device based on ecological farmland according to claim 6 is characterized in that: The adjustment assembly includes two ear plates fixedly arranged on the lower side of the slide rail and symmetrically arranged on the left and right sides, a first screw rod is arranged between the two ear plates to rotate together, the first screw rod is provided with two threaded sections with opposite threads, and the two threaded sections are threadedly connected with a first slider, the front sides of the two first sliders are respectively hinged to one end of the first connecting arm and the second connecting arm, and a rotating handle is fixedly connected to either end of the first screw rod.

8. The soil improvement and tillage device based on ecological farmland according to claim 1 is characterized in that: The upper side of the support bar is provided with two third sliding holes along its length direction, and the connecting component includes a second sliding block slidably arranged in the third sliding hole, the second sliding block is threadedly connected with a second screw rod, the upper end of the second screw rod is fixedly connected with a rotating wheel, the lower end of the second screw rod located on the front side is rotatably connected to the upper side of the guide bar, and the lower end of the second screw rod located on the rear side is rotatably connected to the upper side of the second connecting arm.

9. The soil improvement and tillage device based on ecological farmland according to claim 1, characterized in that: The rear side of the fixing seat is fixedly connected to an external tractor through two left-right symmetrical connecting columns.

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