Spacing-adjustable seeding frame for corn interplanting

Abstract

The utility model discloses a spacing adjustable seeder frame for corn interplanting, including main support frame, guide rail, T type slot, sliding assembly, vice support frame, the horizontal guide rail is fixed to the main support frame front part, the horizontal T type slot is penetrated to the guide rail left and right, the T type slot is penetrated in the guide rail front end, the sliding assembly is slidably connected to the T type slot, the sliding assembly and vice support frame or the seeding mechanism of outside are detachably installed. The utility model utilizes the wrench manual positive and negative rotation to tighten the nut, can control whether the tight bolt and tight nut are clamped to the guide rail, and the tight bolt and screw cylinder are always inserted with the blind hole, thereby making the relative position of tight bolt and sliding seat both inconvenient, and when not clamping, can make the sliding seat slide along the guide rail left and right, thereby adjusting the seeding spacing, convenient and fast, and when tightening the tight bolt, the rubber block is extruded to provide the elastic repulsive force, thereby realizing the thread locking effect.

Description

Technical Field

[0001] This utility model relates to a sowing device, and more particularly to a corn intercropping sowing machine frame with adjustable spacing. Background Technology

[0002] Intercropping corn is a highly efficient three-dimensional planting model. Its core principle is to utilize the differences in growth characteristics between corn and other crops (such as height, growth period, and different light and fertilizer requirements) to plant them together in the same plot, maximizing the utilization of land, light, water, and fertilizer resources, thereby increasing the total yield per unit area and economic benefits. Chinese utility model patent application number 202421373023.2 provides a corn intercropping machine frame with adjustable intercropping spacing and a corn intercropping machine. This patent states that "this utility model has a simple structure and is convenient to manufacture; an intercropping spacing is reserved between the two sets of connecting components, so that during one walking and sowing operation, the reserved intercropping spacing can be achieved simultaneously with the sowing of corn on both sides of the intercropping spacing, thereby improving the efficiency of corn intercropping." However, it has the following shortcomings: First, according to the attached drawings and instructions, the fixed base plate is fixedly connected to the front crossbar of the support frame using two U-bolts. This connection method... First, the design requires rotating numerous nuts when adjusting the intercropping spacing, making adjustment inconvenient. Second, the exposed U-bolts are prone to accumulating mud and dust, hindering subsequent disassembly. Third, while the covering knife combined with the torsion spring achieves the covering effect, the downward swing force of the covering knife is not stable enough. As the torsion spring weakens after prolonged use, its downward swing force diminishes, reducing the covering effect. Fourth, when the U-shaped groove of the placement frame works in conjunction with the drip irrigation tape roll holder, the relative rotation between the two results in significant frictional resistance. The limiting sleeve also experiences considerable friction when guiding the drip irrigation tape, which can easily damage the tape roll and reduce its lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a corn intercropping planter frame with adjustable spacing to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable-spacing seeder frame for maize intercropping includes a main support frame, guide rails, T-slots, a sliding assembly, and a secondary support frame. A horizontal guide rail is fixed to the front of the main support frame. Horizontal T-slots extend through the guide rails on both sides, passing through the front ends of the guide rails. A sliding assembly is slidably connected to each T-slot. The sliding assembly is detachably mounted to the secondary support frame or an external sowing mechanism. The secondary support frame can be connected to the sowing mechanism or a drip irrigation pipe installation mechanism as needed. The sliding assembly includes a sliding seat, blind holes, tightening bolts, tightening nuts, and a screw cylinder. The sliding seat has a blind hole at the front. The head of the tightening bolt is slidably connected to the T-slot, and the head is in contact with the upper and lower ends of the inner wall of the T-slot. The front end of the tightening nut is fixed with a screw cylinder. The tightening nut and the screw cylinder are threadedly connected to the rod of the tightening bolt. The screw cylinder and the rod of the tightening bolt are respectively inserted into the blind hole with a gap. A rubber block is inserted into the rod of the tightening bolt with a gap. The rubber block fills the front part of the T-slot. When the tightening nut approaches the T-slot, it first squeezes the rubber block and then contacts and fits with the front end of the guide rail.

[0005] Based on the above technical solution, the auxiliary support frame and the sliding seat are detachably connected by bolts and nuts. The drip irrigation pipe laying mechanism includes a placement frame, a fork seat, and support rollers. The placement frame is fixed at the front of the auxiliary support frame. The upper part of the placement frame is U-shaped, and the upper left and upper right parts are respectively fixed with fork seats. The fork seats correspond to each other on the left and right, and multiple support rollers are rotatably connected to the bottom of their inner walls. The support rollers in the same fork seat are arranged in an arc shape, and the axial direction of each support roller is horizontally set on the left and right.

[0006] Based on the above technical solution, the drip irrigation pipe laying mechanism further includes a guide cylinder, a lifting arm, a compression spring, clamping bolts, clamping nuts, an adjusting groove, a plow head, a bracket, a fixed pulley, and a soil covering mechanism. The placement frame is fixed with a vertical guide cylinder, the upper part of which is closed and the lower part extends downwards. The guide cylinder is slidably connected to a lifting arm, and a compression spring is fixed between the lifting arm and the guide cylinder. A clamping bolt is inserted through the gap in the lifting arm, and each clamping bolt is threaded with a clamping nut. The guide cylinder has adjusting grooves extending to the left and right, and the rod of the clamping bolt is inserted through the adjusting groove. The head of the clamping bolt and the clamping nut can fit together with the left and right ends of the guide cylinder. A plow head is detachably installed at the bottom of the lifting arm, and a bracket is fixed at the front of the plow head. A fixed pulley is rotatably connected to the bracket, and a soil covering mechanism is also installed on the lifting arm.

[0007] Based on the above technical solution, the soil covering mechanism includes a support arm, a soil covering plate, a support, and a rolling roller. The lifting arm is slidably connected to the support arm, and the front end of the support arm is fixed with a soil covering plate. The soil covering plate is flared outwards and the bottom of the front end is fixed with a support. The support is rotatably connected to a horizontal rolling roller, and the lowest point of the outer circumference of the rolling roller is lower than the bottom end of the soil covering plate.

[0008] Based on the above technical solution, the support arm is fixed with a mounting base, the mounting base is vertically corresponding to the fixed pulley, the mounting base has vertical through holes running through it, the edges of the through holes are smoothly transitioned, and multiple ball bearings are rotatably connected to the inner circumference at equal angles.

[0009] Compared with the prior art, this utility model has the following advantages: This utility model uses a wrench to manually rotate the tightening nut in both directions to control whether the tightening bolt and the tightening nut clamp the guide rail. The tightening bolt and the screw barrel are always inserted into the blind hole, so that the relative position of the tightening bolt and the sliding seat is basically fixed. When not clamped, the sliding seat can slide left and right along the guide rail to adjust the sowing spacing, which is convenient and quick. When tightening the tightening bolt, the rubber block is squeezed to provide elastic repulsive force, thereby achieving the effect of preventing the threads from loosening. The screw barrel and the screw of the tightening bolt are both inserted into the blind hole with a gap. Then, with the help of the rubber block, the threads of the tightening bolt shank can be protected, which greatly reduces the contamination of mud and dust, thereby ensuring the stability of the subsequent thread transmission. The support shaft of the winding drum with the drip irrigation pipe is engaged with the fork seat, so that the support shaft and the support roller roll against each other, reducing frictional resistance. When the drip irrigation pipe is led down, it passes through the through hole and rolls against the ball, thereby reducing friction, reducing wear, and extending the life of the drip irrigation pipe. Under the influence of gravity, the support arm, cover plate, support, and roller always tend to move downwards towards the ground, and this tendency is stable. The cover plate is used to push and cover the soil produced by excavation, and then the roller is used to compact it, thereby improving the soil covering effect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the isometric structure of this utility model.

[0011] Figure 2 This is a schematic diagram showing the fit between the blind hole, the tightening bolt, and the screw cylinder of this utility model.

[0012] Figure 3 This is a schematic diagram showing the cooperation between the support arm and the mounting base of this utility model.

[0013] In the diagram: 1. Main support frame, 2. Guide rail, 3. T-slot, 4. Sliding assembly, 5. Sliding seat, 6. Blind hole, 7. Tightening bolt, 8. Tightening nut, 9. Screw barrel, 10. Placement frame, 11. Fork seat, 12. Support roller, 13. Guide cylinder, 14. Lifting arm, 15. Compression spring, 16. Clamping bolt, 17. Clamping nut, 18. Adjustment groove, 19. Plowhead, 20. Bracket, 21. Fixed pulley, 22. Soil covering mechanism, 23. Support arm, 24. Soil covering plate, 25. Support, 26. Roller roller, 27. Mounting seat, 28. Through hole, 29. Ball bearing, 30. Secondary support frame, 31. Rubber block. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figures 1-3 As shown, a corn intercropping adjustable-spacing planter frame includes a main support frame 1, a guide rail 2, a T-slot 3, a sliding assembly 4, and a secondary support frame 30. A horizontal guide rail 2 is fixed to the front of the main support frame 1. Horizontal T-slots 3 extend through the left and right sides of the guide rail 2, passing through the front end of the guide rail 2. The sliding assembly 4 is slidably connected to the T-slot 3. The sliding assembly 4 is detachably installed with the secondary support frame 30 or an external planting mechanism. The secondary support frame 30 can be connected to the planting mechanism or a drip irrigation pipe installation mechanism as needed. The sliding assembly 4 includes a sliding seat 5, a blind hole 6, a tightening bolt 7, a tightening nut 8, and a screw cylinder. 9. Rubber block 31, the sliding seat 5 is provided with a blind hole 6 at the front, the head of the tightening bolt 7 is slidably connected to the T-slot 3, and the head is in contact with the upper and lower ends of the inner wall of the T-slot 3. The front end of the tightening nut 8 is fixed with a screw cylinder 9. The tightening nut 8 and the screw cylinder 9 are threadedly connected to the rod of the tightening bolt 7. The screw cylinder 9 and the rod of the tightening bolt 7 are respectively inserted into the blind hole 6 with a gap. The rod of the tightening bolt 7 is inserted with a rubber block 31 with a gap. The rubber block 31 fills the front part of the T-slot 3. When the tightening nut 8 approaches the T-slot 3, it first squeezes the rubber block 31 and then contacts and fits with the front end of the guide rail 2.

[0016] In use, the main support frame 1 is installed with the seeder. By manually turning the tightening nut 8 forward and backward with a wrench, the clamping bolt 7 and the tightening nut 8 can be controlled to clamp the guide rail 2. The tightening bolt 7 and the screw 9 are always inserted into the blind hole 6, so that the relative position of the tightening bolt 7 and the sliding seat 5 is basically fixed. When not clamped, the sliding seat 5 can slide left and right along the guide rail 2 to adjust the sowing spacing, which is convenient and quick. When tightening the tightening bolt 7, the rubber block 31 is squeezed to provide elastic repulsive force, thereby achieving the effect of preventing the threads from loosening. The screw 9 and the screw of the tightening bolt 7 are both inserted into the blind hole 6 with a gap. Then, with the help of the rubber block 31, the threads of the shank of the tightening bolt 7 can be protected, greatly reducing the contamination of mud and dust, thereby ensuring the stability of the subsequent thread transmission.

[0017] The auxiliary support frame 30 and the sliding seat 5 are detachably connected by bolts and nuts. The drip irrigation pipe laying mechanism includes a placement frame 10, a fork seat 11, and a support roller 12. The placement frame 10 is fixed at the front of the auxiliary support frame 30. The upper part of the placement frame 10 is U-shaped, and the upper left and upper right parts are respectively fixed with fork seats 11. The fork seats 11 correspond to each other on the left and right, and multiple support rollers 12 are rotatably connected to the bottom of the inner wall. The support rollers 12 in the same fork seat 11 are arranged in an arc shape, and the axial direction of each support roller 12 is horizontally set on the left and right.

[0018] Furthermore, the support shaft of the auger with the drip irrigation pipe wound around it is fitted with the fork seat 11, so that the support shaft and the support roller 12 roll and rub against each other, reducing frictional resistance.

[0019] The drip irrigation pipe laying mechanism also includes a guide cylinder 13, a lifting arm 14, a compression spring 15, a clamping bolt 16, a clamping nut 17, an adjusting groove 18, a plow head 19, a bracket 20, a fixed pulley 21, and a soil covering mechanism 22. The placement frame 10 is fixed with a vertical guide cylinder 13. The upper part of the guide cylinder 13 is closed and the lower part extends downwards. The lifting arm 14 is slidably connected to the guide cylinder 13. A compression spring 15 is fixed between the lifting arm 14 and the guide cylinder 13. A clamping bolt is inserted through the gap of the lifting arm 14. 16. Each clamping bolt 16 is threaded with a clamping nut 17. The guide cylinder 13 has an adjustment groove 18 extending through it on the left and right. The rod of the clamping bolt 16 is inserted into the adjustment groove 18 with a gap. The head of the clamping bolt 16 and the clamping nut 17 can fit together with the left and right ends of the guide cylinder 13. A plow head 19 is detachably installed at the bottom of the lifting arm 14. A bracket 20 is fixed at the front of the plow head 19. The bracket 20 is rotatably connected to a fixed pulley 21. The lifting arm 14 is also equipped with a soil covering mechanism 22.

[0020] Furthermore, the drip irrigation pipe is led downwards from the wound reel and then guided to the front of the plow head 19 via the rear of the fixed pulley 21. When the plow head 19 moves backward with the seeder, digging and trenching operations can be carried out, and the drip irrigation pipe can be laid in the trench. Then, the covering mechanism 22 is used to cover the soil, thus achieving the installation. By tightening the clamping bolts 16 and clamping nuts 17, the position of the lifting arm 14 relative to the guide cylinder 13 can be limited, thereby adjusting and limiting the height of the plow head 19 relative to the main support frame 1. At this time, the height cannot be adjusted independently to meet the needs of digging depth for leveling the land. When the clamping bolts 16 and clamping nuts 17 are loosened, the elastic repulsive force of the compression spring 15 can be used to apply a downward thrust to the lifting arm 14. At this time, the height can be adjusted independently to meet the needs of digging depth for uneven land.

[0021] The soil covering mechanism 22 includes a support arm 23, a soil covering plate 24, a support 25, and a rolling roller 26. The lifting arm 14 is slidably connected to the support arm 23. The soil covering plate 24 is fixed to the front end of the support arm 23. The soil covering plate 24 is flared outwards and the support 25 is fixed to the bottom of the front end. The support 25 is rotatably connected to the horizontal rolling roller 26. The lowest point of the outer circumference of the rolling roller 26 is lower than the bottom of the soil covering plate 24.

[0022] Furthermore, under the action of gravity, the support arm 23, the soil covering plate 24, the support 25, and the rolling roller 26 always tend to move downwards and closer to the ground, and the trend is stable. Thus, the soil covering plate 24 is used to push and cover the soil generated by excavation, and then the rolling roller 26 is used to roll and compact it, thereby improving the soil covering effect.

[0023] The support arm 23 is fixed with a mounting base 27, which corresponds vertically to the fixed pulley 21. The mounting base 27 has a vertical through hole 28 extending vertically through it. The edges of the through hole 28 are smoothly transitioned, and multiple balls 29 are rotatably connected to the inner circumference of the hole at equal angles.

[0024] Furthermore, when the drip irrigation tube is led downwards, it passes through the through hole 28 and rolls against the ball 29, thereby reducing friction, reducing wear, extending the life of the drip irrigation tube, and improving the restriction on the position of the drip irrigation tube.

[0025] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A corn intercropping adjustable-spacing planter frame, comprising a main support frame (1), a guide rail (2), a T-slot (3), a sliding assembly (4), and a secondary support frame (30), characterized in that: The main support frame (1) has a horizontal guide rail (2) fixed at the front. The guide rail (2) has horizontal T-slots (3) running through it on the left and right. The T-slots (3) run through the front end of the guide rail (2). The T-slots (3) are slidably connected to a sliding component (4). The sliding component (4) can be detachably installed with the secondary support frame (30) or an external sowing mechanism. The secondary support frame (30) can be connected to the sowing mechanism or the drip irrigation pipe laying mechanism as needed. The sliding component (4) includes a sliding seat (5), a blind hole (6), a tightening bolt (7), a tightening nut (8), a screw (9), and a rubber block (31). The sliding seat (5) has a blind hole (6) at the front. The head of the tightening bolt (7) is slidably connected to the T-slot (3), and the head is in contact with the upper and lower ends of the inner wall of the T-slot (3). The front end of the tightening nut (8) is fixed with a screw (9). The tightening nut (8) and the screw (9) are threaded together with the rod of the tightening bolt (7). The screw (9) and the rod of the tightening bolt (7) are respectively inserted into the blind hole (6) with a gap. A rubber block (31) is inserted into the rod of the tightening bolt (7) with a gap. The rubber block (31) is filled in the front part of the T-slot (3). When the tightening nut (8) approaches the T-slot (3), it first squeezes the rubber block (31) and then contacts and fits with the front end of the guide rail (2).

2. The adjustable spacing seeder frame for intercropping maize according to claim 1, characterized in that: The secondary support frame (30) and the sliding seat (5) are detachably connected by bolts and nuts. The drip irrigation pipe laying mechanism includes a placement frame (10), a fork seat (11), and a support roller (12). The placement frame (10) is fixed at the front of the secondary support frame (30). The upper part of the placement frame (10) is U-shaped, and the upper left and upper right parts are respectively fixed with fork seats (11). The fork seats (11) are symmetrical to each other, and multiple support rollers (12) are rotatably connected to the bottom of the inner wall. The support rollers (12) in the same fork seat (11) are arranged in an arc shape, and the axial direction of each support roller (12) is horizontally set to the left and right.

3. The adjustable spacing seeder frame for intercropping maize according to claim 2, characterized in that: The drip irrigation pipe laying mechanism also includes a guide cylinder (13), a lifting arm (14), a compression spring (15), a clamping bolt (16), a clamping nut (17), an adjusting groove (18), a plow head (19), a bracket (20), a fixed pulley (21), and a soil covering mechanism (22). The placement frame (10) is fixed with a vertical guide cylinder (13). The upper part of the guide cylinder (13) is closed and the lower part extends downward. The guide cylinder (13) is slidably connected to the lifting arm (14). The lifting arm (14) and the guide cylinder (13) are both fixed with a compression spring (15). The lifting arm (14) is inserted through the gap and a clamping bolt is inserted. Each clamping bolt (16) is threaded with a clamping nut (17). The guide cylinder (13) has an adjustment groove (18) running through it on the left and right. The rod of the clamping bolt (16) is inserted into the adjustment groove (18) through the gap. The head of the clamping bolt (16) and the clamping nut (17) can fit together with the left and right ends of the guide cylinder (13). The bottom of the lifting arm (14) is detachably equipped with a plow head (19). The front of the plow head (19) is fixed with a bracket (20). The bracket (20) is rotatably connected with a fixed pulley (21). The lifting arm (14) is also equipped with a soil covering mechanism (22).

4. The adjustable spacing seeder frame for intercropping maize according to claim 3, characterized in that: The soil covering mechanism (22) includes a support arm (23), a soil covering plate (24), a support (25), and a rolling roller (26). The lifting arm (14) is slidably connected to the support arm (23). The front end of the support arm (23) is fixed with the soil covering plate (24). The soil covering plate (24) is flared outwards and the bottom of the front end is fixed with the support (25). The support (25) is rotatably connected to the horizontal rolling roller (26). The lowest point of the outer circumference of the rolling roller (26) is lower than the bottom of the soil covering plate (24).

5. The adjustable spacing seeder frame for intercropping maize according to claim 4, characterized in that: The support arm (23) is fixed with a mounting base (27), which corresponds to the fixed pulley (21) vertically. The mounting base (27) has a vertical through hole (28) running through it vertically. The edge of the through hole (28) is smoothly transitioned, and multiple balls (29) are connected to the inner wall circumference at equal angles.

Images