Soil loosening and ditching device and farming planter

Abstract

The utility model discloses a soil loosening and furrowing device and a farming planter, and belongs to the technical field of agricultural automatic seeding, the soil loosening and furrowing device comprises a moving mechanism, a rack, a soil loosening mechanism and a furrowing mechanism, the soil loosening mechanism and the furrowing mechanism are mounted on the rack, the rack is mounted on the moving mechanism, and the soil loosening mechanism is arranged at the front end of the furrowing mechanism; the soil loosening mechanism comprises a first driving piece, a rotating seat and a first shifting rod, the first driving piece is installed on the rack, the rotating seat is installed at the output end of the first driving piece, the first shifting rod is installed on the rotating seat, the length direction of the first shifting rod intersects with the rotating direction of the rotating seat, and the first shifting rod is used for being inserted into a ditching area. According to the soil loosening mechanism, a first shifting rod is inserted into a furrowing area of a field ridge, a rotating seat drives the first shifting rod to rotate, the first shifting rod shifts soil in the furrowing area and stirs the compacted soil, the purpose of loosening soil is achieved, after the soil loosening mechanism completes the soil loosening operation, the furrowing mechanism conducts furrowing operation subsequently, and the digging resistance of the furrowing mechanism is reduced through loose soil.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural automated sowing, in particular to a soil loosening and furrowing device and a farming sowing machine. Background Art

[0002] In agricultural production, the land needs to be furrowed first, and then sown. When the soil needs to be loosened, it is loosened to promote the growth of crops. The traditional method in my country is to use manpower or livestock to pull the furrowing plow to dig the furrows, and use farm tools such as hoes to loosen the soil. The problem with this method is that it takes a lot of time and labor, which is time-consuming and laborious.

[0003] At present, people have designed automatic trenching machines, which have a frame, a trenching member installed in the frame, and a plurality of trenching knives, each of which has a front scraping member. However, during the trenching process, since the planting area is not loosened, the trenching resistance is large, resulting in a large thrust required for trenching, which reduces the trenching efficiency of the agricultural seeder. Utility Model Content

[0004] The utility model aims to improve the problem that the existing trenching machine has large trenching resistance, resulting in reduced trenching efficiency, and provides a soil loosening and trenching device and an agricultural seeder.

[0005] The technical solutions to achieve the above objectives include the following:

[0006] A soil loosening and furrowing device comprises: a frame, a soil loosening mechanism installed on the frame, and a furrowing mechanism, wherein the soil loosening mechanism is arranged at the front end of the furrowing mechanism; the soil loosening mechanism comprises a first driving member, a rotating seat, and at least one first shifting rod, wherein the first driving member is installed on the frame, the rotating seat is installed at the output end of the first driving member, the first shifting rod is installed on the rotating seat, the length direction of the first shifting rod intersects with the rotation direction of the rotating seat, and the first shifting rod is used to be inserted into a furrowing area.

[0007] In one of the embodiments, the loosening mechanism also has a second lever, a connecting plate, and a fastener. The middle section of the connecting plate is installed under the rotating seat. An adjustment groove is provided on the connecting plate, and the adjustment groove extends along the length direction of the connecting plate. The first lever or the second lever has a threaded hole at one end close to the connecting plate, and the adjustment groove and the threaded hole are used for the first end of the fastener to pass through, so that the first lever or the second lever is respectively installed on the two ends of the connecting plate through the fastener, and the second end of the fastener is used to resist the connecting plate.

[0008] In one embodiment, the trenching mechanism includes a first supporting structure, a mechanical arm, and a trenching member. The first end of the first supporting structure is installed on a frame, the mechanical arm is installed on the second end of the first supporting structure and is hinged to the second supporting structure. The connection between the first supporting structure and the mechanical arm forms an excavation angle, and the trenching member is installed on the mechanical arm.

[0009] In one embodiment, the trenching mechanism further includes a second driving member, a first sliding block, a first screw rod, and an adjusting rod, wherein the second driving member is mounted on the first supporting structure, the first screw rod is mounted on the output end of the second driving member, the first sliding block is sleeved outside the first screw rod and is threadedly matched with the first screw rod, the first supporting structure has two supporting rods, the two supporting rods are mounted on the frame, and the two supporting rods are respectively arranged on both sides of the first sliding block;

[0010] The first end of the adjusting rod is rotationally matched with the first sliding block, and the second end of the adjusting rod is rotationally matched with the middle section of the mechanical arm.

[0011] In one of the embodiments, the first sliding block has a first connecting shaft, the mechanical arm has a second connecting shaft, the two ends of the adjusting rod are respectively sleeved on the outside of the first connecting shaft and the second connecting shaft, and the adjusting rod is respectively rotatably cooperated with the first connecting shaft and the second connecting shaft; the first sliding block is used to drive the adjusting rod to move so that the adjusting rod can adjust the size of the excavation angle.

[0012] In one embodiment, the loosening mechanism has a lifting assembly, which includes a second supporting structure, a third driving member, a second screw rod, and a second sliding block. The second supporting structure is installed on the frame, the third driving member is installed on the second supporting structure, the second screw rod is installed on the output end of the third driving member, the second sliding block is sleeved on the outside of the second screw rod and cooperates with the second screw rod thread, the first driving member is installed on the second sliding block, the second sliding block has a guide groove, and the second supporting structure has a guide block that cooperates with the guide groove.

[0013] In one embodiment, the second supporting structure has a guide column, the guide column is arranged parallel to the second screw rod, the second sliding block is sleeved outside the guide column, and the guide groove of the second sliding block is slidably matched with the guide column.

[0014] In one embodiment, the second support structure includes a first support plate, a second support plate, and a third support plate, the second support plate is installed on the top of the first support plate, the third support plate is installed on the bottom of the first support plate, and the third support plate is installed on the frame, the two ends of the guide column are respectively installed on the second support plate and the third support plate, and the first support plate is vertically arranged to the second support plate or the third support plate.

[0015] In one embodiment, the lifting assembly also includes a support frame and a support block. The support frame is installed on the second sliding block. The support frame has a plurality of first mounting holes, and the plurality of first mounting holes are arranged and distributed along the length direction of the support frame. The support block has a second mounting hole, and the second mounting hole corresponds to any one of the first mounting holes. The first mounting holes and the second mounting holes are provided for fasteners to pass through so that the support block is fixed to the support frame by the fasteners. The first driving member is installed on the support block.

[0016] The utility model also proposes an agricultural seeder, comprising a moving mechanism, a sowing mechanism, a film covering mechanism, and the soil loosening and furrowing device as described above, wherein the sowing mechanism and the film covering mechanism are both installed on a frame, the frame is installed on the moving mechanism, and the sowing mechanism is arranged between the soil loosening and furrowing device and the film covering mechanism.

[0017] The technical solution provided by the utility model has the following advantages and effects:

[0018] The loosening mechanism is arranged at the front end of the ditching mechanism, so that the ditching mechanism can use the loosening mechanism to loosen the soil on the ridges that need to be ditched before ditching; the loosening mechanism uses the first lever to insert into the ditching area of ​​the ridge, and the first driving member drives the rotating seat to rotate, and the rotation direction of the rotating seat intersects with the length direction of the first lever. The rotating seat drives the first lever to rotate, and the first lever shifts the soil in the ditching area to stir the compacted soil to achieve the purpose of loosening the soil. After the loosening mechanism completes the loosening operation, the ditching mechanism subsequently performs the ditching operation. The looser soil reduces the digging resistance of the ditching mechanism, thereby improving the ditching efficiency of the ditching mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein show specific examples of the technical solutions described in the present utility model, and together with the specific implementation methods constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present utility model.

[0020] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0021] Figure 1 It is a schematic diagram of an agricultural seeder in one embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of a soil loosening mechanism in an embodiment of the utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of a soil loosening mechanism in an embodiment of the utility model. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of a ditching mechanism in an embodiment of the utility model. Figure 1 ;

[0025] Figure 5 This is a schematic diagram of a ditching mechanism in an embodiment of the utility model. Figure 2 ;

[0026] Description of reference numerals:

[0027] 100. Agricultural seeder;

[0028] 1. Frame;

[0029] 2. Soil loosening mechanism; 20. Lifting assembly; 21. Second supporting structure; 211. First supporting plate; 212. Second supporting plate; 213. Third supporting plate; 22. Third driving member; 23. Guide column; 24. Second screw rod; 25. Second sliding block; 26. Support frame; 261. First mounting hole; 27. Support block; 271. Second mounting hole; 281. First driving member; 282. Rotating seat; 29. ​​Soil loosening member; 291. First lever; 292. Second lever; 293. Connecting plate; 294. Adjusting slot; 295. Fastener;

[0030] 3. Grooving mechanism; 31. Mounting plate; 32. Second driving member; 33. First supporting structure; 34. First sliding block; 341. First connecting shaft; 35. First screw rod; 36. Mechanical arm; 361. Second connecting shaft; 37. Adjusting rod; 38. Grooving member;

[0031] 4. Mobile mechanism;

[0032] 5. Seeding mechanism;

[0033] 6. Laminating mechanism. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0035] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0036] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0038] In order to solve the problem that the existing trenching machine has large trenching resistance and reduces trenching efficiency. Figures 1 to 3 As shown, a loosening and furrowing device includes: a moving mechanism 4, a frame 1, a loosening mechanism 2 installed on the frame 1, and a furrowing mechanism 3. The frame 1 is installed on the moving mechanism 4. The specific structure of this moving mechanism 4 can refer to Chinese Patent No. CN201810372078.4, which discloses an automatic corn planter to achieve the movement of the agricultural planter 100. The loosening mechanism 2 is arranged at the front end of the furrowing mechanism 3; the loosening mechanism 2 includes a first driving member 281, a rotating seat 282, and at least one first lever 291. The first driving member 281 is installed on the frame 1, the rotating seat 282 is installed at the output end of the first driving member 281, the first lever 291 is installed on the rotating seat 282, the length direction of the first lever 291 intersects with the rotation direction of the rotating seat 282, and the first lever 291 is used to insert into the furrowing area. The loosening mechanism 2 is arranged at the front end of the ditching mechanism 3, so that the ditching mechanism 3 can use the loosening mechanism 2 to loosen the soil on the ridges that need to be ditched before ditching; the loosening mechanism 2 uses the first lever 291 to insert into the ditching area of ​​the ridge, and the first driving member 281 drives the rotating seat 282 to rotate. The rotation direction of the rotating seat 282 intersects with the length direction of the first lever 291. The rotating seat 282 drives the first lever 291 to rotate, and the first lever 291 moves the soil in the ditching area to stir the compacted soil to achieve the purpose of loosening the soil. After the loosening mechanism 2 completes the loosening operation, the ditching mechanism 3 subsequently performs the ditching operation. The looser soil reduces the excavation resistance of the ditching mechanism 3, thereby improving the ditching efficiency of the ditching mechanism 3.

[0039] In order to improve the loosening efficiency of the loosening mechanism 2 and adjust the loosening range of the loosening mechanism 2. Figure 2 and Figure 3As shown, the loosening mechanism 2 also has a second lever 292, a connecting plate 293, and a fastener 295. The middle section of the connecting plate 293 is installed under the rotating seat 282. An adjusting groove 294 is provided on the connecting plate 293, and the adjusting groove 294 extends along the length direction of the connecting plate 293; the first lever 291 or the second lever 292 has a threaded hole at one end close to the connecting plate 293, and the adjusting groove 294 and the threaded hole are used for the first end of the fastener 295 to pass through, so that the first lever 291 or the second lever 292 is respectively installed at the two ends of the connecting plate 293 through the fastener 295, and the second end of the fastener 295 is used to abut against the connecting plate 293. By providing an adjustment slot 294 on the connecting plate 293, the adjustment slot 294 extends along the length direction of the connecting plate 293, the first lever 291 and the second lever 292 have threaded holes, and the fastener 295 passes through the adjustment slot 294 and is fixed to the threaded holes; the first lever 291 and the second lever 292 can be set at any position of the adjustment slot 294, so that the distance between the first lever 291 and the second lever 292 can be adjusted, and the larger the distance between the first lever 291 and the second lever 292, the larger the soil loosening range, and vice versa, the smaller the distance between the first lever 291 and the second lever 292, the smaller the soil loosening range, thereby adjusting the soil loosening range of the loosening mechanism 2. Moreover, by using the first lever 291 and the second lever 292 to loosen the soil at the same time, the loosening efficiency of the loosening mechanism 2 can be improved. Of course, multiple levers can also be set under the connecting plate 293, and the multiple levers and the connecting plate 293 form the loosening member 29, which further improves the loosening efficiency.

[0040] In order to realize the trenching operation of the trenching mechanism 3. Figure 1 , Figure 4 , Figure 5 As shown, the trenching mechanism 3 includes a first support structure 33, a mechanical arm 36, and a trenching member 38. The first end of the first support structure 33 is mounted on the frame 1, the mechanical arm 36 is mounted on the second end of the first support structure 33 and is hinged to the first support structure 33. The connection between the first support structure 33 and the mechanical arm 36 forms an excavation angle, and the trenching member 38 is mounted on the mechanical arm 36. The first support structure 33 is used to support the mechanical arm 36, and the trenching member 38 is mounted on the mechanical arm 36. The trenching member 38 is used to be inserted into the soil. When the mechanical arm 36 moves, it drives the trenching member 38 to dig and trench. Moreover, the mechanical arm 36 is hinged to the first support structure 33, so the mechanical arm 36 can rotate to adjust the excavation angle of the trenching member 38. The larger the excavation angle, the deeper the trenching member 38 digs, and the greater the excavation resistance. The smaller the excavation angle, the shallower the trenching member 38 digs, and the smaller the excavation resistance.

[0041] In order to facilitate the adjustment of the excavation angle of the trenching mechanism 3. Figure 4 and Figure 5As shown, the ditching mechanism 3 also includes a second driving member 32, a first sliding block 34, a first screw rod 35, and an adjusting rod 37. The second driving member 32 is installed on the first supporting structure 33. The second driving member 32 can also be fixed to the frame 1 through the mounting plate 31 to further improve the stability of the second driving member 32; the first screw rod 35 is installed at the output end of the second driving member 32, the first sliding block 34 is sleeved on the outside of the first screw rod 35, and is threadedly matched with the first screw rod 35. The first supporting structure 33 has two support rods, the two support rods are installed on the frame 1, and the two support rods are respectively arranged on both sides of the first sliding block 34; the first end of the adjusting rod 37 is rotationally matched with the first sliding block 34, and the second end of the adjusting rod 37 is rotationally matched with the middle section of the mechanical arm 36. By arranging two support rods on both sides of the first sliding block 34, the second driving member 32 is used to drive the first screw rod 35 to rotate, the first sliding block 34 is sleeved on the outside of the first screw rod 35 and threadedly cooperates with the first screw rod 35, the first sliding block 34 is restricted by the two support rods, when the first screw rod 35 rotates, the first sliding block 34 moves along the length direction of the first screw rod 35, the first sliding block 34 drives the adjusting rod 37 to move, thereby adjusting the position of the mechanical arm 36, and realizing the adjustment of the excavation angle between the mechanical arm 36 and the first supporting structure 33.

[0042] In order to further realize that the adjusting rod 37 adjusts the mechanical arm 36 when moving. Figure 4 and Figure 5 As shown, the first sliding block 34 has a first connecting shaft 341, the mechanical arm 36 has a second connecting shaft 361, and the two ends of the adjusting rod 37 are respectively sleeved on the outside of the first connecting shaft 341 and the second connecting shaft 361, and the adjusting rod 37 is respectively rotatably matched with the first connecting shaft 341 and the second connecting shaft 361; the first sliding block 34 is used to drive the adjusting rod 37 to move, so that the adjusting rod 37 adjusts the size of the excavation angle. The two ends of the adjusting rod 37 are respectively rotatably matched with the first connecting shaft 341 and the second connecting shaft 361, and the first sliding block 34 drives the first connecting shaft 341 to move when moving, so that the first connecting shaft 341 and the adjusting rod 37 are rotatably matched, and the inclination angle of the adjusting rod 37 is changed, so as to adjust the position between the mechanical arm 36 and the first supporting structure 33, and further realize that the adjusting rod 37 adjusts the mechanical arm 36 when moving.

[0043] In order to further adjust the loosening range of the loosening mechanism 2. Figure 2 and Figure 3As shown, the loosening mechanism 2 has a lifting assembly 20, which includes a second supporting structure 21, a third driving member 22, a second screw rod 24, and a second sliding block 25. The second supporting structure 21 is installed on the frame 1, the third driving member 22 is installed on the second supporting structure 21, the second screw rod 24 is installed on the output end of the third driving member 22, the second sliding block 25 is sleeved on the outside of the second screw rod 24 and threadedly matched with the second screw rod 24, the first driving member 281 is installed on the second sliding block 25, the second sliding block 25 has a guide groove, and the second supporting structure 21 has a guide block (not shown in the figure) matched with the guide groove. Since the guide groove of the second sliding block 25 cooperates with the guide block, the moving direction of the second sliding block 25 is limited. Therefore, the third driving member 22 is used to drive the second screw rod 24 to rotate. The friction force generated between the second screw rod 24 and the second sliding block 25 drives the second sliding block 25 to move up and down. The second sliding block 25 drives the first driving member 281 to move up and down, thereby driving the loosening member 29 to move up and down. The up and down movement of the loosening member 29 can adjust the depth of the first lever 291 and the second lever 292 inserted into the soil. The deeper the insertion into the soil, the greater the resistance and the loosening range, thereby further realizing the adjustment of the loosening range of the loosening mechanism 2.

[0044] In order to improve the stability of the second sliding block 25 during movement. Figure 2 and Figure 3 As shown, the second support structure 21 has a guide column 23, which is arranged in parallel with the second screw rod 24, and the second sliding block 25 is sleeved outside the guide column 23, and the guide groove of the second sliding block 25 is slidably matched with the guide column 23. Two guide columns 23 are respectively arranged on both sides of the second screw rod 24, and the guide columns 23 pass through the second sliding block 25 and are slidably matched with the guide groove of the second sliding block 25. The two guide columns 23 are used to limit the moving path of the second sliding block 25, so as to improve the stability of the second sliding block 25 when it moves up and down.

[0045] In order to improve the stability of the second screw rod 24, the guide column 23, and the third driving member 22 on the second supporting structure 21. Figure 2 and Figure 3As shown, the second support structure 21 includes a first support plate 211, a second support plate 212, and a third support plate 213. The second support plate 212 is mounted on the top of the first support plate 211, the third support plate 213 is mounted on the bottom of the first support plate 211, and the third support plate 213 is mounted on the frame 1. The two ends of the guide column 23 are respectively mounted on the second support plate 212 and the third support plate 213. The first support plate 211 is vertically arranged with the second support plate 212 or the third support plate 213. The first support plate 211 is used to support the second support plate 212 and the third support plate 213. The first support plate 211 is fixed to the frame 1 through the third support plate 213. The second support plate 212 is used to support the third driving member 22. The second support plate 212 and the third support plate 213 are used to fix the guide column 23 to improve the stability of the guide column 23. The end of the second screw rod 24 can be rotatably matched with the shaft hole of the third support plate 213 to improve the stability of the second screw rod 24 when rotating.

[0046] In order to improve the flexibility of the loosening member 29 on the frame 1. Figure 2 and Figure 3 As shown, the lifting assembly 20 also includes a support frame 26 and a support block 27. The support frame 26 is mounted on the second sliding block 25. The support frame 26 has a plurality of first mounting holes 261, which are arranged and distributed along the length direction of the support frame 26. The support block 27 has a second mounting hole 271, which corresponds to any one of the first mounting holes 261. The first mounting hole 261 and the second mounting hole 271 are used for fasteners 295 to pass through, so that the support block 27 is fixed to the support frame 26 through the fasteners 295, and the first driving member 281 is installed on the support block 27. The support block 27 is fixed to the support frame 26 through the fasteners 295. The support frame 26 has a plurality of first mounting holes 261, and any one of the first mounting holes 261 corresponds to the second mounting hole 271 of the support block 27, so as to adjust the installation position of the support block 27 on the support frame 26, thereby adjusting the lateral position of the first driving member 281, and improving the flexibility of the loosening member 29 on the frame 1.

[0047] like Figure 1 As shown, the utility model also proposes an agricultural seeder 100, comprising a sowing mechanism 5, a film covering mechanism 6, and a soil loosening and furrowing device as described above, wherein the sowing mechanism 5 and the film covering mechanism 6 are both mounted on a frame 1, and the sowing mechanism 5 is arranged between the soil loosening and furrowing device and the film covering mechanism 6. The soil loosening and furrowing device is applied to the agricultural seeder 100 to loosen the soil and furrow the field ridges before sowing, thereby improving the air permeability of the field ridges, and after the furrows are opened, the sowing mechanism 5 spreads the seeds in the furrows to achieve sowing; the film covering mechanism 6 is used to cover the field ridges, and the film covering can effectively reduce the evaporation of soil moisture and the loss of plant moisture, thereby retaining the moisture in the root zone of the plant and improving the drought resistance of the crop.

[0048] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quotations of drawings resulting in less concise descriptions, features that have been described clearly will not be quoted in the drawings one by one.

[0049] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to make the public understand the disclosed content of the utility model more thoroughly and comprehensively, and it does not limit the protection scope of the utility model.

[0050] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. Soil loosening and ditching device, characterized in that: include: A frame, a loosening mechanism installed on the frame, and a trenching mechanism, wherein the loosening mechanism is arranged at the front end of the trenching mechanism; the loosening mechanism includes a first driving member, a rotating seat, and at least one first shifting rod, wherein the first driving member is installed on the frame, the rotating seat is installed on the output end of the first driving member, the first shifting rod is installed on the rotating seat, the length direction of the first shifting rod intersects with the rotation direction of the rotating seat, and the first shifting rod is used to be inserted into the trenching area.

2. The soil loosening and furrowing device according to claim 1, characterized in that: The loosening mechanism also has a second lever, a connecting plate, and a fastener. The middle section of the connecting plate is installed under the rotating seat. An adjustment groove is provided on the connecting plate, and the adjustment groove extends along the length direction of the connecting plate. The first lever or the second lever has a threaded hole at one end close to the connecting plate, and the adjustment groove and the threaded hole are used for the first end of the fastener to pass through, so that the first lever or the second lever is respectively installed on the two ends of the connecting plate through the fastener, and the second end of the fastener is used to resist the connecting plate.

3. The soil loosening and furrowing device according to claim 1, characterized in that: The trenching mechanism includes a first supporting structure, a mechanical arm, and a trenching member. The first end of the first supporting structure is installed on a frame, the mechanical arm is installed on the second end of the first supporting structure and is hinged to the second supporting structure. The connection between the first supporting structure and the mechanical arm forms an excavation angle, and the trenching member is installed on the mechanical arm.

4. The soil loosening and furrowing device according to claim 3, characterized in that: The ditching mechanism also includes a second driving member, a first sliding block, a first screw rod, and an adjusting rod. The second driving member is installed on the first supporting structure. The first screw rod is installed on the output end of the second driving member. The first sliding block is sleeved outside the first screw rod and is threadedly matched with the first screw rod. The first supporting structure has two supporting rods, which are installed on the frame and are respectively arranged on both sides of the first sliding block. The first end of the adjusting rod is rotationally matched with the first sliding block, and the second end of the adjusting rod is rotationally matched with the middle section of the mechanical arm.

5. The soil loosening and furrowing device according to claim 4, characterized in that: The first sliding block has a first connecting shaft, the mechanical arm has a second connecting shaft, the two ends of the adjusting rod are respectively sleeved on the outside of the first connecting shaft and the second connecting shaft, and the adjusting rod is respectively rotatably cooperated with the first connecting shaft and the second connecting shaft; the first sliding block is used to drive the adjusting rod to move so that the adjusting rod can adjust the size of the excavation angle.

6. The soil loosening and trenching device according to any one of claims 1 to 5, characterized in that: The loosening mechanism has a lifting assembly, which includes a second supporting structure, a third driving member, a second screw rod, and a second sliding block. The second supporting structure is installed on the frame, the third driving member is installed on the second supporting structure, the second screw rod is installed on the output end of the third driving member, the second sliding block is sleeved on the outside of the second screw rod and cooperates with the second screw rod thread, the first driving member is installed on the second sliding block, the second sliding block has a guide groove, and the second supporting structure has a guide block that cooperates with the guide groove.

7. The soil loosening and furrowing device according to claim 6, characterized in that: The second supporting structure is provided with a guide column, the guide column is arranged parallel to the second screw rod, the second sliding block is sleeved outside the guide column, and the guide groove of the second sliding block is slidably matched with the guide column.

8. The soil loosening and furrowing device according to claim 7, characterized in that: The second supporting structure includes a first supporting plate, a second supporting plate, and a third supporting plate. The second supporting plate is installed on the top of the first supporting plate, the third supporting plate is installed on the bottom of the first supporting plate, and the third supporting plate is installed on the frame. Both ends of the guide column are respectively installed on the second supporting plate and the third supporting plate. The first supporting plate is vertically arranged to the second supporting plate or the third supporting plate.

9. The soil loosening and furrowing device according to claim 6, characterized in that: The lifting assembly also includes a support frame and a support block. The support frame is installed on the second sliding block. The support frame has a plurality of first mounting holes, and the plurality of first mounting holes are arranged and distributed along the length direction of the support frame. The support block has a second mounting hole, and the second mounting hole corresponds to any one of the first mounting holes. The first mounting holes and the second mounting holes are provided for fasteners to pass through so that the support block is fixed to the support frame by the fasteners. The first driving member is installed on the support block.

10. An agricultural seeder, characterized in that: It comprises a moving mechanism, a sowing mechanism, a film covering mechanism, and a soil loosening and furrowing device as described in any one of claims 1 to 9, wherein the sowing mechanism and the film covering mechanism are both installed on a frame, the frame is installed on the moving mechanism, and the sowing mechanism is arranged between the soil loosening and furrowing device and the film covering mechanism.

Images