A dryland plastic film mulching direct seeding machine

Abstract

The present invention discloses a direct seeding machine for dry land mulching, which relates to the technical field of agricultural machinery. It includes a bottom plate, and both the front and rear ends on the right side of the upper surface of the bottom plate are fixedly connected with support plates. Cross-shaped chutes are provided on the upper sides of the two support plates, and cross-shaped sliders are slidably connected in the two cross-shaped chutes. Through the mutual cooperation among the feeding groove, the sliding hole, the first sprocket, the fourth rotating shaft, the second sprocket, the chain, the telescopic cylinder, the circular plate, the movable belt and the spring, when the fourth rotating shaft is driven to rotate by the second roller, the fourth rotating shaft drives the fixedly connected rotating cylinder to rotate, and the rotating cylinder drives a plurality of rows of telescopic cylinders slidably connected to the circumferential surface to rotate. Through the continuous contact between the movable belts arranged at the opposite ends of the plurality of rows of telescopic cylinders and the lower arc surface of the feeding groove, the telescopic cylinders rotated to the lower side are pushed to slide downward. At the same time, the springs sleeved on the outside are driven to contract, so that the telescopic cylinders are inserted into the soil for seeding, improving the effect of direct seeding with mulching for crops and the grain yield.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and specifically relates to a dryland film mulching direct seeding machine. Background Art

[0002] Plastic mulch is widely used in crop cultivation, which has the functions of improving soil properties, increasing soil temperature, maintaining soil moisture and nutrient supply, improving light conditions, and reducing pests and diseases.

[0003] For existing dryland film mulching direct seeding machines, when sowing seeds on the land, most of them only scatter the seeds on the land surface. However, seeds scattered only on the land surface cannot absorb water and nutrients from the soil and cannot germinate and emerge, thus affecting the effect of crop film mulching direct seeding and grain yield. Moreover, existing soil-inserting direct seeding machines only connect a conduit to a seed storage hopper and then insert the conduit into the land. Since the land is relatively fine and fragmented, during the repeated operation, blocky sand and soil will block the outlet of the conduit, affecting seed sowing, and the subsequent cleaning is time-consuming and laborious. The film mulching function of existing film mulching direct seeding machines is not yet perfect. When the degradable film works with the vehicle, the speed is relatively single and cannot be adjusted according to specific situations, thus reducing the covering effect of the degradable film and failing to achieve the effects of moisture retention, temperature increase, and water saving. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a dryland film mulching direct seeding machine, which solves the problems that seeds scattered only on the land surface cannot absorb water and nutrients from the soil and cannot germinate and emerge, thus affecting the effect of crop film mulching direct seeding and grain yield; during the repeated operation, blocky sand and soil will block the outlet of the conduit, affecting seed sowing, and the subsequent cleaning is time-consuming and laborious; the unfolding speed of the degradable film cannot be adjusted according to specific situations, thus reducing the covering effect of the degradable film and failing to achieve the effects of moisture retention, temperature increase, and water saving.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A dryland plastic film direct seeding machine, including a bottom plate, both the front and rear ends of the right side of the upper surface of the bottom plate are fixedly connected with support plates. Cross-shaped chutes are opened on the upper sides of both support plates. Cross-shaped sliders are slidably connected in both cross-shaped chutes. The opposite surfaces of both cross-shaped sliders are respectively fixedly connected with both ends of a rotating shaft I through a bearing I. A sleeve is fixedly connected to the rotating shaft I. The upper surface of the rear cross-shaped slider is fixedly connected with the lower smooth shaft part of a threaded rod I through a bearing II. And the upper end of the threaded rod I extends above the support plate and is fixedly connected with a rotating block. And the threaded rod I is in threaded connection with a threaded hole opened at the top of the cross-shaped chute. The rear end of the rotating shaft I extends to the rear of the rear support plate and is fixedly connected with a gear I. Both the opposite surfaces of both support plates are fixedly connected with a rotating shaft II through a bearing III at the lower part. A gear II is fixedly connected to the rear rotating shaft II. And the gear II meshes with the gear I. Both the opposite ends of both rotating shafts II are fixedly connected with a roller I. A guiding roller is installed on the right side of the bottom plate through an opened through hole. The middle part of the upper surface of the bottom plate is fixedly connected with a threaded rod II through a bearing IV. A threaded sleeve is in threaded connection with the threaded rod II. The threaded sleeve is fixedly connected to the right side wall of a U-shaped plate. Both the opposite surfaces of the left end of the U-shaped plate are fixedly connected with a rotating shaft III through a bearing V. Both the opposite ends of both rotating shafts III are fixedly connected with a roller II. A sprocket I is fixedly connected to the rear rotating shaft III. Both the middle parts of the opposite surfaces of the U-shaped plate are respectively fixedly connected with both ends of a rotating shaft IV through a bearing VI. The rear end of the rotating shaft IV extends to the rear of the U-shaped plate and is fixedly connected with a sprocket II. The sprocket II is in transmission connection with the sprocket I through a chain. A rotating cylinder is fixedly connected to the front side of the rotating shaft IV. And the rotating cylinder corresponds to an opening opened on the left side of the upper surface of the bottom plate. A material discharging groove is fixedly connected to the lower side of the middle part of the rear inner wall of the U-shaped plate. A discharging port I is opened at the bottom of the material discharging groove. A plurality of rows of sliding holes are opened on the circumferential surface of the rotating cylinder. A telescopic cylinder is slidably connected in each sliding hole. The outer side walls of the opposite ends of a plurality of telescopic cylinders are respectively fixedly connected with a circular plate. Each circular plate is fixedly connected with the outer circumferential surface of a movable belt through a connecting cylinder. A plurality of discharging ports II are opened on the movable belt. A spring is sleeved outside each telescopic cylinder. And both ends of the spring are respectively fixedly connected with the circular plate and the inner wall of the rotating cylinder. Both sides of the opposite ends of each telescopic cylinder are fixedly connected with a semi-conical plate through a hinge. And the two semi-conical plates are symmetrically arranged. Both sides of the circumferential surface of each telescopic cylinder are opened with a T-shaped chute I. A T-shaped slider is slidably connected in both T-shaped chutes I. The opposite ends of both T-shaped sliders extend outside the telescopic cylinder and are fixedly connected with a limiting plate. A linkage bar is fixedly connected to both T-shaped sliders. And both side linkage bars are slidably connected in a chute opened on the side wall of the telescopic cylinder. And the other ends of both linkage bars are respectively fixedly connected with both side semi-conical plates. Both the front and rear ends of the left side of the upper surface of the bottom plate are fixedly connected with a T-shaped slide bar.The two T-shaped sliding bars are respectively slidably connected to the second T-shaped sliding grooves opened on the opposite left sides of the U-shaped plate.

[0008] Preferably, a docking hook is fixedly connected to the left end of the upper surface of the bottom plate.

[0009] Preferably, a degradation film is wound around the outer sleeve.

[0010] Preferably, the diameter of the second gear is twice the diameter of the first gear.

[0011] Preferably, anti-slip patterns are provided on the circumferential surfaces of the two first rollers and the two second rollers.

[0012] Preferably, one row of the second discharge ports corresponds to one row of the telescopic cylinders one by one.

[0013] Preferably, the movable belt is made of rubber.

[0014] Preferably, magnets are provided at the tips of the two semi-conical plates, and the magnetic poles of the magnets on both sides are opposite.

[0015] Preferably, the linkage bar is made of plastic.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For this dryland film mulching and direct seeding machine, through the mutual cooperation among the feeding groove, the sliding hole, the first sprocket, the fourth rotating shaft, the second sprocket, the chain, the telescopic cylinder, the circular plate, the movable belt and the spring, when the second roller drives the fourth rotating shaft to rotate, the fourth rotating shaft drives the fixedly connected rotating cylinder to rotate, and the rotating cylinder drives several rows of telescopic cylinders slidably connected to its circumferential surface to rotate. Through the continuous contact between the movable belts provided at the relative ends of several rows of telescopic cylinders and the lower arc surface of the feeding groove, the telescopic cylinders rotated to the lower side are pushed to slide downward, and at the same time, the springs sleeved on the outside are driven to contract, so that the telescopic cylinders are inserted into the soil for seeding, improving the effect of film mulching and direct seeding of crops and the grain yield.

[0019] 2. For this dryland film mulching and direct seeding machine, through the mutual cooperation among the semi-conical plate, the first T-shaped sliding groove, the T-shaped slider, the limiting plate, the linkage bar and the magnet, after the closed semi-conical plate is pushed into the ground by the telescopic cylinder, the limiting plates on both sides are stuck above the ground, driving the T-shaped sliders on both sides to slide in the first T-shaped sliding groove, and the T-shaped sliders on both sides drive the fixedly connected linkage bar to move, thereby driving the semi-conical plates on both sides to open, so that the seeds stored in the semi-conical plates on both sides fall into the soil. Subsequently, after the springs push the telescopic cylinders back into the rotating cylinder by elastic force, the limiting plates on both sides are lapped with the outer wall of the rotating cylinder, so that the semi-conical plates are pushed to close by the linkage bars on both sides, avoiding the blockage of the discharge ports of the conduits by massive sand and soil and affecting the seeding of the seeds.

[0020] 3. The dryland mulching direct seeding machine can, through the mutual cooperation among the arranged support plate, cross-shaped slider, rotating shaft 1, threaded rod 1, gear 1, rotating shaft 2 and gear 2, drive the cross-shaped slider fixedly connected to the lower end to move up and down in the cross-shaped sliding groove by rotating the rotating block at the upper end of the threaded rod 1, so that the threaded rod 1 moves up and down in the threaded hole, realizing the meshing and non-meshing between gear 1 and gear 2, and thus realizing the adjustment of the unfolding speed of the degradable film according to specific conditions and improving the covering effect of the degradable film. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front sectional structure schematic diagram of the present invention;

[0022] Figure 2 is a front sectional structure schematic diagram of the support plate of the present invention;

[0023] Figure 3 is a left view structure schematic diagram of the support plate of the present invention;

[0024] Figure 4 is a rear view structure schematic diagram of the U-shaped plate of the present invention;

[0025] Figure 5 is a left sectional structure schematic diagram of the rotating cylinder of the present invention;

[0026] Figure 6 of the present invention Figure 1 is an enlarged structure schematic diagram at A in;

[0027] Figure 7 of the present invention Figure 1 is an enlarged structure schematic diagram at B in.

[0028] In the figure: 1 bottom plate, 2 support plate, 3 cross-shaped sliding groove, 4 cross-shaped slider, 5 rotating shaft 1, 6 sleeve, 7 threaded rod 1, 8 gear 1, 9 rotating shaft 2, 10 roller 1, 11 gear 2, 12 guiding roller, 13 threaded rod 2, 14 threaded sleeve, 15 U-shaped plate, 16 rotating shaft 3, 17 roller 2, 18 sprocket 1, 19 rotating shaft 4, 20 sprocket 2, 21 chain, 22 rotating cylinder, 23 feeding groove, 24 discharge port 1, 25 sliding hole, 26 telescopic cylinder, 27 circular plate, 28 movable belt, 29 discharge port 2, 30 spring, 31 semi-conical plate, 32 T-shaped sliding groove 1, 33 T-shaped slider, 34 limiting plate, 35 linkage bar, 36 T-shaped sliding bar, 37 T-shaped sliding groove 2, 38 degradable film, 39 docking hook, 40 magnet. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figure 1-7As shown in the figure, the present invention provides a technical solution: a direct seeding machine for dry land mulching, including a bottom plate 1. A docking hook 39 is fixedly connected to the left end of the upper surface of the bottom plate 1. By providing the docking hook 39 at the left end of the upper surface of the bottom plate 1, the device can be docked with an agricultural vehicle to drive the device to move. Both the front and rear ends of the right side of the upper surface of the bottom plate 1 are fixedly connected with support plates 2. Cross-shaped chutes 3 are provided on the upper sides of the two support plates 2. By providing the cross-shaped chutes 3 and cross-shaped sliders 4, the degradable film 38 provided on the rotating shaft 5 can move more stably up and down. Cross-shaped sliders 4 are slidably connected in the two cross-shaped chutes 3. The opposite surfaces of the two cross-shaped sliders 4 are respectively fixedly connected to the two ends of the rotating shaft 5 through a first bearing. A sleeve 6 is fixedly connected to the rotating shaft 5. The degradable film 38 is wound around the outside of the sleeve 6. One end of the degradable film 38 passes through a through hole provided on the bottom plate 1 and overlaps with the lower side of the guiding roller 12 provided on the right side, improving the film mulching effect. The upper surface of the rear cross-shaped slider 4 is fixedly connected to the lower smooth shaft portion of the first threaded rod 7 through a second bearing, and the upper end of the first threaded rod 7 extends above the support plate 2 and is fixedly connected to a rotating block. By providing the rotating block, it is more convenient to rotate the first threaded rod 7, and the first threaded rod 7 is threadedly connected to a threaded hole provided at the top of the cross-shaped chute 3. By providing the threaded connection between the first threaded rod 7 and the threaded hole at the top of the cross-shaped chute 3, the rear cross-shaped slider 4 fixedly connected thereto can be moved up and down by rotating the first threaded rod 7, thereby driving the engagement and disengagement of the first gear 8 and the second gear 11, facilitating the transfer of the device and adjusting the stretching speed of the degradable film 38 of the device during film mulching. The rear end of the rotating shaft 5 extends to the rear of the rear support plate 2 and is fixedly connected to the first gear 8. The diameter of the second gear 11 is twice the diameter of the first gear 8. By providing the diameter of the second gear 11 to be twice the diameter of the first gear 8, when the second gear 11 coaxially connected to the first roller 10 rotates slowly, the degradable film 38 provided on the rotating shaft 5 can be driven to rotate faster, avoiding the breakage of the degradable film 38 due to the vehicle speed being faster than the stretching speed of the degradable film 38, and improving the film mulching effect of the degradable film 38. The lower sides of the opposite surfaces of the two support plates 2 are respectively fixedly connected to a second rotating shaft 9 through a third bearing. The second gear 11 is fixedly connected to the rear second rotating shaft 9, and the second gear 11 meshes with the first gear 8. By providing the engagement between the second gear 11 and the first gear 8, the rotating shaft 5 can be driven to rotate when the first roller 10 rotates, realizing the integrity of the structure. The opposite ends of the two second rotating shafts 9 are respectively fixedly connected to a first roller 10. Anti-slip patterns are provided on the circumferential surfaces of the two first rollers 10 and the two second rollers 17. By providing the anti-slip patterns on the circumferential surfaces of the first rollers 10 and the second rollers 17, the device can have better grip when rotating on the ground with uneven surface and insufficient fineness. The guiding roller 12 is installed on the right side of the bottom plate 1 through a through hole provided. By providing the guiding roller 12, when the device pulls the degradable film 38 for film mulching, it does not rub against the through hole provided on the bottom plate 1, avoiding the breakage of the degradable film 38.In the middle of the upper surface of the bottom plate 1, a second threaded rod 13 is fixedly connected through a fourth bearing. A threaded sleeve 14 is threadedly connected to the second threaded rod 13. The threaded sleeve 14 is fixedly connected to the right side wall of the U-shaped plate 15. By providing the second threaded rod 13 and the threaded sleeve 14, the threaded sleeve 14 connected by threading can be driven to move up and down by rotating the second threaded rod 13, so that the two rollers 17 on the left do not contact the ground, facilitating the transfer and transportation of the device. On the opposite back surfaces of the left end of the U-shaped plate 15, third rotating shafts 16 are fixedly connected through fifth bearings. On the opposite ends of the two third rotating shafts 16, rollers 17 are fixedly connected. A first sprocket 18 is fixedly connected to the rear third rotating shaft 16. Through the mutual cooperation among the provided first sprocket 18, second sprocket 20 and chain 21, the first sprocket 18 coaxially connected can be driven by the rear left roller 17. The first sprocket 18 then drives the second sprocket 20 to rotate through the chain 21. The second sprocket 20 then drives the coaxial drum 22 to rotate. The drum 22 then drives a plurality of rows of telescopic cylinders 26 slidably connected to the circumferential surface to rotate, realizing the integrity of the structure. At the middle of the opposite surfaces of the U-shaped plate 15, the two ends of a fourth rotating shaft 19 are respectively fixedly connected through sixth bearings. The rear end of the fourth rotating shaft 19 extends to the rear of the U-shaped plate 15 and is fixedly connected to the second sprocket 20. The second sprocket 20 is drivingly connected to the first sprocket 18 through the chain 21. A drum 22 is fixedly connected to the front side of the fourth rotating shaft 19, and the drum 22 corresponds to the opening provided on the left side of the upper surface of the bottom plate 1. By providing the opening on the left side of the upper surface of the bottom plate 1, a plurality of rows of telescopic cylinders 26 can extend to the lower part of the bottom plate 1 and be inserted into the soil. At the lower part of the middle of the rear inner wall of the U-shaped plate 15, a feeding groove 23 is fixedly connected. A row of discharging openings 24 is provided at the bottom of the feeding groove 23. A row of discharging openings 29 corresponds to a row of telescopic cylinders 26 one by one. By providing that the upper openings of a row of telescopic cylinders 26 correspond to the discharging openings 29 provided on the movable belt 28 one by one, the seeds in the feeding groove 23 can fall into the lower ends of the interiors of a row of telescopic cylinders 26 by gravity, realizing the integrity of the structure. A plurality of rows of sliding holes 25 are provided on the circumferential surface of the drum 22. A telescopic cylinder 26 is slidably connected in each sliding hole 25. On the outer side walls of the opposite ends of the plurality of telescopic cylinders 26, circular plates 27 are fixedly connected. Each circular plate 27 is fixedly connected to the outer circumferential surface of the movable belt 28 through a connecting cylinder. The movable belt 28 is made of rubber. By providing that the movable belt 28 is made of rubber, the movable belt 28 can have a certain elasticity, facilitating rotation following a plurality of rows of telescopic cylinders 26. A plurality of rows of discharging openings 29 are provided on the movable belt 28. A spring 30 is sleeved outside each telescopic cylinder 26. By providing the spring 30, after the telescopic cylinder 26 does not contact the arc surface at the bottom of the feeding groove 23, the spring 30 pushes the automatic telescopic cylinder 26 to retract into the drum 22 through elastic force. And the two ends of the spring 30 are respectively fixedly connected to the circular plate 27 and the inner wall of the drum 22. On both sides of the opposite ends of each telescopic cylinder 26, semi-conical plates 31 are fixedly connected through hinges. Magnets 40 are provided at the tips of the two semi-conical plates 31, and the magnetic poles of the two side magnets 40 are opposite.By arranging magnets 40 at the tips of the two semi-conical plates 31, the two semi-conical plates 31 on both sides can be made more firmly closed when closed, and the two semi-conical plates 31 are symmetrically arranged. T-shaped chutes 32 are provided on both sides of the circumferential surface of each telescopic cylinder 26. T-shaped sliders 33 are slidably connected in the two T-shaped chutes 32. The arrangement of the T-shaped chutes 32 and the T-shaped sliders 33 enables the limiting plate 34 to move more stably. The opposite ends of the two T-shaped sliders 33 extend outside the telescopic cylinder 26 and are fixedly connected to the limiting plate 34. Linkage bars 35 are fixedly connected to the two T-shaped sliders 33. The linkage bars 35 are made of plastic. By arranging the linkage bars 35 to be made of plastic, while being able to push the semi-conical plates 31 on both sides to close, it has a certain toughness and can bend along with the semi-conical plates 31 on both sides. Moreover, the two linkage bars 35 are slidably connected in the chutes provided on the side walls of the telescopic cylinder 26, and the other ends of the two linkage bars 35 are respectively fixedly connected to the semi-conical plates 31 on both sides. T-shaped slide bars 36 are fixedly connected to the front and rear ends on the left side of the upper surface of the bottom plate 1. By arranging the T-shaped slide bars 36 and the T-shaped chutes 37, while being able to limit the U-shaped plate 15 to prevent it from rotating, it can move more stably up and down. The two T-shaped slide bars 36 are respectively slidably connected in the T-shaped chutes 37 provided on the left side of the opposite surfaces of the U-shaped plate 15.,

[0031] The operation steps of the present invention are as follows:

[0032] S1. When using this device, first dock the device to an agricultural vehicle such as a tractor. Then, pass one end of the degradable film 38 through the through-hole, lap it under the guiding roller 12 arranged on the right side, and fix it at one end of the sowing area. Subsequently, pour the crop seeds to be sown into the feeding trough 23. Then rotate the second threaded rod 13 to make the threaded sleeve 14 threadedly connected to it move downward. The threaded sleeve 14 drives the fixedly connected U-shaped plate 15 to move downward. At the same time, the T-shaped chute two 37 opened on the opposite surfaces of the U-shaped plate 15 slides downward on the T-shaped slide bar 36 arranged on the upper surface of the bottom plate 1, so that the U-shaped plate 15 drives the fixedly connected rotating cylinder 22 to move downward. Stop rotating after moving to a suitable position. Then control the agricultural vehicle to move. The agricultural vehicle drives the two first rollers 10 and the two second rollers 17 of this device to rotate on the land. The rear second roller 17 on the left drives the coaxially connected first sprocket 18. The first sprocket 18 drives the second sprocket 20 to rotate through the chain 21. The second sprocket 20 drives the coaxially connected rotating cylinder 22 to rotate. The rotating cylinder 22 drives several rows of telescopic cylinders 26 slidably connected to its circumferential surface to rotate. Through the continuous contact of the movable belts 28 arranged at the opposite ends of several rows of telescopic cylinders 26 with the lower arc surface of the feeding trough 23, the telescopic cylinders 26 rotated to the lower side are pushed to slide downward. After the upper openings of the rows of telescopic cylinders 26 rotated to the lower side, the discharge ports two 29 opened on the movable belts 28 and the discharge ports one 24 at the lower end of the feeding trough 23 are in one-to-one correspondence, the seeds in the feeding trough 23 fall into the inner lower ends of the rows of telescopic cylinders 26 by gravity. At the same time, the telescopic cylinders 26 drive the springs 30 sleeved on the outside to contract. The lower telescopic cylinders 26 push the closed semi-cone plates 31 into the ground. The limiting plates 34 on both sides are stuck above the ground, driving the T-shaped sliders 33 on both sides to slide in the T-shaped chute one 32. The T-shaped sliders 33 on both sides drive the fixedly connected linkage bars 35 to move, so as to drive the semi-cone plates 31 on both sides to open, and the seeds hoarded in the semi-cone plates 31 on both sides fall on the land. The rotating cylinder 22 continues to rotate to drive the lower telescopic cylinders 26 to continue to rotate. When the lower telescopic cylinders 26 no longer lap with the bottom arc surface of the feeding trough 23, the springs 30 push the telescopic cylinders 26 to retract into the rotating cylinder 22 by elastic force. The limiting plates 34 on both sides lap with the outer wall of the rotating cylinder 22, so as to drive the T-shaped sliders 33 on both sides to slide reversely in the T-shaped chute one 32, and then drive the magnets 30 arranged at the tips of the semi-cone plates 31 to be adsorbed through the linkage bars 35 on both sides, so as to drive the semi-cone plates 31 on both sides to close, completing sowing;

[0033] S2. Meanwhile, the rear right roller 10 drives the coaxially connected gear 11 to rotate. Gear 11 drives the meshing gear 8 to rotate, assisting the degradation film 38 to unfold the peritoneal film. When it is necessary to adjust the unfolding speed of the degradation film 38, rotate the rotating block at the upper end of the threaded rod 7, so that the threaded rod 7 drives the cross-shaped slider 4 fixedly connected to the lower end to move upward through the threaded connection with the threaded hole, thereby driving the gear 8 to disengage from the gear 11, and enabling the degradation film 38 to rotate and unfold with the vehicle speed.

[0034] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dryland plastic film mulching direct seeding machine, comprising a bottom plate (1), characterized in that: On the upper surface of the bottom plate (1), both the front and rear ends on the right side are fixedly connected with support plates (2). Cross-shaped chutes (3) are opened on the upper sides of the two support plates (2). Cross-shaped sliders (4) are slidably connected in the two cross-shaped chutes (3). The opposite surfaces of the two cross-shaped sliders (4) are respectively fixedly connected with the two ends of a rotating shaft one (5) through a bearing one. A sleeve (6) is fixedly connected to the rotating shaft one (5). The upper surface of the rear cross-shaped slider (4) is fixedly connected with the lower smooth shaft part of a threaded rod one (7) through a bearing two. The upper end of the threaded rod one (7) extends above the support plate (2) and is fixedly connected with a rotating block. The threaded rod one (7) is in threaded connection with a threaded hole opened at the top of the cross-shaped chute (3). The rear end of the rotating shaft one (5) extends to the rear side of the rear support plate (2) and is fixedly connected with a gear one (8). At the lower parts of the opposite surfaces of the two support plates (2), a rotating shaft two (9) is fixedly connected through a bearing three. A gear two (11) is fixedly connected to the rear rotating shaft two (9). The gear two (11) is meshed with the gear one (8). Roller ones (10) are fixedly connected to the opposite ends of the two rotating shafts two (9). A guiding roller (12) is installed on the right side of the bottom plate (1) through an opening. In the middle of the upper surface of the bottom plate (1), a threaded rod two (13) is fixedly connected through a bearing four. A threaded sleeve (14) is in threaded connection with the threaded rod two (13). The threaded sleeve (14) is fixedly connected to the right side wall of a U-shaped plate (15). On the opposite surfaces of the left end of the U-shaped plate (15), a rotating shaft three (16) is fixedly connected through a bearing five. Roller twos (17) are fixedly connected to the opposite ends of the two rotating shafts three (16). A sprocket one (18) is fixedly connected to the rear rotating shaft three (16). In the middle of the opposite surfaces of the U-shaped plate (15), a rotating shaft four (19) is fixedly connected through a bearing six at both ends. The rear end of the rotating shaft four (19) extends to the rear of the U-shaped plate (15) and is fixedly connected with a sprocket two (20). The sprocket two (20) is in transmission connection with the sprocket one (18) through a chain (21). A rotating cylinder (22) is fixedly connected to the front side of the rotating shaft four (19). The rotating cylinder (22) corresponds to an opening opened on the left side of the upper surface of the bottom plate (1). In the middle of the rear inner wall of the U-shaped plate (15), a discharging groove (23) is fixedly connected at the lower side. A discharging port one (24) is opened at the bottom of the discharging groove (23). A plurality of rows of sliding holes (25) are opened on the circumferential surface of the rotating cylinder (22). A telescopic cylinder (26) is slidably connected in each sliding hole (25). On the outer side walls of the opposite ends of a plurality of telescopic cylinders (26), a circular plate (27) is fixedly connected. Each circular plate (27) is fixedly connected with the outer circumferential surface of a movable belt (28) through a connecting cylinder. A plurality of discharging ports two (29) are opened on the movable belt (28). A spring (30) is sleeved outside each telescopic cylinder (26). The two ends of the spring (30) are respectively fixedly connected with the circular plate (27) and the inner wall of the rotating cylinder (22).On both sides of the opposite ends of each telescopic cylinder (26), semi-conical plates (31) are fixedly connected by hinges, and the two semi-conical plates (31) are symmetrically arranged. On both sides of the circumferential surface of each telescopic cylinder (26), first T-shaped sliding grooves (32) are formed. T-shaped sliders (33) are slidably connected in the two first T-shaped sliding grooves (32). The opposite ends of the two T-shaped sliders (33) extend outside the telescopic cylinder (26) and are fixedly connected with limiting plates (34). Linkage bars (35) are fixedly connected to the two T-shaped sliders (33), and the two side linkage bars (35) are slidably connected in sliding grooves formed in the side wall of the telescopic cylinder (26). The other ends of the two linkage bars (35) are respectively fixedly connected with the two side semi-conical plates (31). At the front and rear ends of the left side of the upper surface of the bottom plate (1), first T-shaped sliding strips (36) are fixedly connected. The two first T-shaped sliding strips (36) are respectively slidably connected in second T-shaped sliding grooves (37) formed in the left side of the opposite surfaces of the U-shaped plate (15).

2. The dryland plastic film direct seeding machine according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a docking hook (39) at the left end.

3. A dryland film mulching direct seeding machine according to claim 1, characterized in that: A degradation film (38) is wound around the outer side of the sleeve (6).

4. A direct seeding machine for dry land mulching according to claim 1, characterized in that: The diameter of the second gear (11) is twice the diameter of the first gear (8).

5. A direct seeding machine for dry land with plastic film mulching according to claim 1, characterized in that: Anti-slip patterns are provided on the circumferential surfaces of the two first rollers (10) and the two second rollers (17).

6. The dryland plastic film mulching direct seeding machine according to claim 1, characterized in that: One row of the second discharge ports (29) corresponds to one row of the telescopic cylinders (26) one by one.

7. A dryland plastic film mulching direct seeding machine according to claim 1, characterized in that: The movable belt (28) is made of rubber.

8. A dryland plastic film mulching direct seeding machine according to claim 1, characterized in that: Magnets (40) are provided at the tips of the two semi-conical plates (31), and the magnetic poles of the two side magnets (40) are opposite.

9. The dryland film mulching direct seeding machine according to claim 1, wherein: The linkage bar (35) is made of plastic.

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