Seeding device for film planting

Abstract

The present invention provides a sowing device for planting on a film, which belongs to the technical field of crop sowing. It includes a walking mechanism, a sowing mechanism and a driving mechanism. The sowing mechanism is mounted on the walking mechanism, and the walking mechanism moves and drives the sowing mechanism to sow. The driving mechanism is connected to the walking mechanism, and is used to drive the walking mechanism to move; the walking mechanism includes a frame and walking wheels, and the walking wheels are arranged under the frame, and the walking wheels are used to drive the frame to move. The sowing mechanism includes an eccentric pushing component, a straight-insertion punching cylinder, an elastic push-back component, a seeding component and a seed pushing component. The film will not be scratched or torn on a large scale, and the soil will not be squeezed. Through free fall, the soil in a compacted state is squeezed into a loose state, the soil structure is also relatively loose, and the surface of the seed will be covered with more soil, thereby improving the germination rate and survival rate of the seed.

Description

Technical Field

[0001] The invention belongs to the technical field of crop sowing, and in particular relates to a sowing device for planting on a film. Background Art

[0002] With the development of science and technology, mechanized production is gradually replacing manual labor in the agricultural production process. Seeders have become one of the commonly used equipment in agricultural production. Seeding equipment is mainly used for sowing operations of seeds such as grains, vegetables, and forage grasses. When planting vegetables, hole-type sowing devices are mainly used. They are planting machines that sow seeds in holes according to a certain row spacing and hole spacing.

[0003] In current agricultural production, in the process of vegetable planting, in order to improve the survival rate of seeds, the operation mode of laying film first and then sowing is adopted. The film is laid first mainly for soil moisture and heat preservation. Subsequently, holes are punched in the film and seeds are planted in the holes. Technicians have studied film-laying and hole-punching seeders suitable for vegetables. With the existing duckbill sowing device, the duckbill sowing device adopts a front and back oblique insertion hole sowing method, which will tear the film on the soil. The torn film loses its heat-insulating and moisturizing effect on the soil, which will reduce the germination rate and survival rate of the seeds, resulting in a decrease in vegetable planting yield.

[0004] For example, the invention with application number CN202210806128.1 introduces a direct-insert hole seeder on a membrane, which can perform "zero speed" processing on the traction speed of the entire machine during the period when the direct-insert hole seeder is buried in the soil through a speed compensation mechanism, that is, the direct-insert hole seeder generates a movement that offsets the overall horizontal speed of the direct-insert hole seeder on the membrane, so that the hole seeder is in a relatively static state relative to the ground in the horizontal direction before and after it is buried in the soil; the direct-insert hole seeder in the direct-insert hole seeder on the membrane of the present invention is provided with a seed unloading trough that is connected with the seed trough on the seeding shaft. When the end of the seeding trough passes through the seed brush plate, the seeds that are not fully filled leave the seeding trough under the action of the seed unloading trough, which can avoid the seeds being squeezed by the seeding shaft and the seed brush plate, thereby effectively ensuring the integrity of the seeds and improving the sowing quality.

[0005] However, this device has the following features: the direct-insert hole seeder moves downward, the combination of the fixed duckbill and the movable duckbill passes through the opening on the support plate, and is poked into the ground to form a seed hole. The soil is pushed and squeezed from the middle to both sides to form a seed hole. Finally, the movable duckbill opens and the seeds are placed in the seed hole. The seed hole is hole-shaped, and the seeds in the seed hole are covered with only a small amount of soil, or even exposed in the seed hole, which will reduce the germination rate and survival rate of the seeds. If the seed hole is further filled with soil and the filled soil is flattened in the later stage, the soil structure will be relatively solid, and the soil on both sides of the seed hole will be squeezed by the movable duckbill, and the soil structure will also be relatively solid, which will slow down the rooting and germination of the seeds, and reduce the germination rate and survival rate of the seeds in the seed hole. Summary of the Invention

[0006] Based on this, the present invention provides a sowing device for planting on a membrane to solve the problem in the prior art that the existing sowing device will tear the film covering the soil, causing the soil to lose its heat-insulating and moisturizing effects, and a straight-inserted duckbill-type sowing device will be used, which will result in the seeds in the seed hole being covered with only a small amount of soil, and the soil structure on both sides of the seed hole will also be relatively solid. Continuing to fill the seed hole with soil in the later stage will also make the soil structure relatively solid. The above problems will reduce the germination rate and survival rate of the seeds.

[0007] The technical solution of the present invention to solve the above technical problems is as follows:

[0008] A sowing device for planting on a film, comprising a traveling mechanism, a sowing mechanism and a driving mechanism, wherein the sowing mechanism is mounted on the traveling mechanism, the traveling mechanism moves and drives the sowing mechanism to sow, and the driving mechanism is connected to the traveling mechanism and is used to drive the traveling mechanism to move;

[0009] The walking mechanism includes a frame and a walking wheel, the walking wheel is arranged under the frame, and the walking wheel is used to drive the frame to move, and the sowing mechanism includes an eccentric pushing component, a direct-insertion punching cylinder, an elastic push-back component, a seed-discharging component and a seed-pushing component, the eccentric pushing component is connected to the driving mechanism and drives the eccentric pushing component to rotate eccentrically, the direct-insertion punching cylinder contacts the eccentric pushing component, the direct-insertion punching cylinder can move up and down in the vertical direction, the elastic push-back component is sleeved on the direct-insertion punching cylinder, and under the push of the eccentric pushing component, the elastic push-back component and the direct-insertion punching cylinder make relative movement, the seed-discharging component is connected with the direct-insertion punching cylinder, the seed-discharging component is used to discharge single seeds, and the seed-pushing component is connected with the direct-insertion punching cylinder, and is used to push seeds into the cavity of the direct-insertion punching cylinder.

[0010] Preferably, the eccentric pushing assembly includes a rotating shaft, a rotating cam, a limit plate and a belt. The rotating shaft is mounted on the frame and can rotate on the frame. The rotating cam is sleeved on the rotating shaft. The rotating shaft rotates and drives the rotating cam to rotate. A pair of limit plates are provided, which are respectively arranged on both side end surfaces of the rotating cam. One end of the belt is connected to the rotating shaft, and the other end is connected to the driving mechanism. The movement of the driving mechanism drives the belt to rotate, and the rotation of the belt drives the rotating shaft to rotate.

[0011] Preferably, the straight-insert punching barrel includes a barrel and an extrusion plate, the barrel is vertically arranged, the extrusion plate is arranged on the upper end face of the barrel, the upper end face of the extrusion plate is in contact with the outer surface of the rotating cam, and the extrusion plate is located between a pair of limiting plates, and a slide groove is also provided on the barrel, and the slide groove is located on the side wall of the lower end of the barrel.

[0012] Preferably, the elastic push-back assembly includes a frame, a sleeve, a push-back elastic member, a movable slider and a soil push plate. The frame is arranged on the frame, the sleeve is fixedly arranged on the frame, the cylinder is sleeved in the sleeve, and the sleeve can move up and down along the sleeve. One end of the push-back elastic member is connected to the sleeve, and the other end is connected to the sleeve. When the sleeve moves up and down along the sleeve, the push-back elastic member can extend or contract. The movable slider is arranged in the slide groove, one end of the movable slider is connected to the frame, and the other end is connected to the soil push plate. The soil push plate is arranged in the sleeve, and the soil push plate and the inner wall of the sleeve are in contact with each other, and the soil push plate can move up and down along the inner wall of the sleeve.

[0013] Preferably, the push-back elastic member includes a first clamping plate, a second clamping plate and a rotation spring, the first clamping plate is fixedly arranged on the sleeve plate, the second clamping plate is fixedly arranged on the outer wall of the cylinder, the second clamping plate is located below the first clamping plate, and the rotation spring is located between the first clamping plate and the second clamping plate, one end of the rotation spring is connected to the first clamping plate, and the other end is connected to the second clamping plate.

[0014] Preferably, the seeding assembly includes a seeding piece, a conveying pipe and a discharge pipe. The seeding piece is mounted on the frame, and the conveying pipe is arranged below the seeding piece. One end of the conveying pipe is connected to the seeding piece, and the other end is connected to the discharge pipe. The discharge pipe is connected to the seed pushing assembly.

[0015] Preferably, the seed pushing assembly includes a seed pushing cylinder and a seed pushing connecting rod, the seed pushing cylinder is tiltedly arranged on the side wall of the straight-insert punching cylinder, and the seed pushing cylinder is located on the side away from the eccentric pushing assembly, the seed pushing cylinder is communicated with the inner wall of the straight-insert punching cylinder, and the seed pushing cylinder is communicated with the discharge pipe, one end of the seed pushing connecting rod is sleeved in the seed pushing cylinder and can move in the seed pushing cylinder, the other end of the seed pushing connecting rod is connected to the eccentric pushing assembly, and the eccentric pushing assembly is used to drive the seed pushing connecting rod to rotate.

[0016] Preferably, the seed pushing connecting rod includes a fixed rod, a first connecting rod, a second connecting rod and a seed pushing column, one end of the fixed rod is fixedly arranged on the eccentric pushing assembly, one end of the first connecting rod is rotatably connected to the other end of the fixed rod, one end of the second connecting rod is rotatably connected to the other end of the first connecting rod, the seed pushing column is rotatably connected to the other end of the second connecting rod, the seed pushing column is sleeved in the seed pushing barrel, and the seed pushing column can move in the seed pushing barrel.

[0017] Preferably, there are N sowing mechanisms, where N≥1.

[0018] Preferably, the driving mechanism includes a driving motor and a driving shaft, the driving motor is arranged on the frame, one end of the driving shaft is connected to the driving motor, and the other end is connected to the walking wheel, and the driving shaft is also connected to the eccentric pushing assembly.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] The direct-insert punching barrel is directly inserted into the soil, and the contact area with the film is small, and there will be no phenomenon of scratching or tearing the film over a large area. The direct-insert punching barrel is directly inserted into the soil, and the contact surface with the soil is only the wall surface of the direct-insert punching barrel, and the soil will not be squeezed. At the same time, the soil and seeds in the internal cavity of the direct-insert punching barrel are pushed out by the push-back action of the elastic push-back component. The soil and seeds are squeezed into a loose state through free fall, and fall back into the hole again. The soil structure is also relatively loose, and the surface of the seed will be covered with more soil, thereby improving the germination rate and survival rate of the seed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Axonometric view of the seeding device for planting on film.

[0022] Figure 2 This is the front view of the sowing device for planting on film.

[0023] Figure 3 This is the left view of the sowing device for planting on film.

[0024] Figure 4 This is a top view of the sowing device for planting on film.

[0025] Figure 5 This is a cross-sectional view of a seeding device for planting on a film.

[0026] Figure 6 This is the axonometric view of the sowing mechanism in the first state.

[0027] Figure 7 It is a front view of the sowing mechanism in the first state.

[0028] Figure 8 It is the left view of the sowing mechanism in the first state.

[0029] Figure 9 This is the axonometric view of the sowing mechanism in the second state.

[0030] Figure 10 It is the front view of the second state of the sowing mechanism.

[0031] In the figure: walking mechanism 10, frame 110, walking wheel 120, sowing mechanism 20, eccentric pushing assembly 210, rotating shaft 211, rotating cam 212, limit plate 213, belt 214, straight-insertion punching cylinder 220, cylinder 221, slide 2211, extrusion plate 222, elastic push-back assembly 230, frame 231, sleeve plate 232, push-back elastic member 233, first clamping plate 2331, second clamping plate 2332, return spring 2333, movable slider 234, soil pushing plate 235, seeding assembly 240, seed dividing member 241, conveying pipe 242, discharge pipe 243, seed pushing assembly 250, seed pushing cylinder 251, seed pushing connecting rod 252, fixed rod 2521, first connecting rod 2522, second connecting rod 2523, seed pushing column 2524, driving mechanism 30, motor 310, driving shaft 320. Implementation Method

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The following will further describe the technical solution of the present invention in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific embodiments.

[0033] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0034] Please see Figure 1, a sowing device for planting on a film, comprising a walking mechanism 10, a sowing mechanism 20 and a driving mechanism 30, wherein the sowing mechanism 20 is mounted on the walking mechanism 10, the walking mechanism 10 moves and drives the sowing mechanism 20 to sow, and the driving mechanism 30 is connected to the walking mechanism 10, for driving the walking mechanism 10 to move; the walking mechanism 10 comprises a frame 110 and a walking wheel 120, the walking wheel 120 is arranged below the frame 110, and the walking wheel 120 is used to drive the frame 110 to move, the sowing mechanism 20 comprises an eccentric pushing component 210, a straight-insertion punching cylinder 220, an elastic push-back component 230, a seeding component 240 and a seed pushing component 250, the eccentric pushing component 2 10 is connected to the driving mechanism 30 and drives the eccentric pushing component 210 to rotate eccentrically. The direct-insertion punching cylinder 220 is in contact with the eccentric pushing component 210. The direct-insertion punching cylinder 220 can move up and down in the vertical direction. The elastic push-back component 230 is sleeved on the direct-insertion punching cylinder 220. Under the push of the eccentric pushing component 210, the elastic push-back component 230 and the direct-insertion punching cylinder 220 make relative movement. The seed-discharging component 240 is connected to the direct-insertion punching cylinder 220. The seed-discharging component 240 is used to discharge single seeds. The seed-pushing component 250 is connected to the direct-insertion punching cylinder 220 and is used to push seeds into the cavity of the direct-insertion punching cylinder 220.The effect is: the driving mechanism 30 drives the walking mechanism 10 and the sowing mechanism 20 to move, the walking wheels 120 walk along the land on both sides of the film, the sowing mechanism 20 is located just above the film, the driving mechanism 30 drives the eccentric pushing component 210 to rotate, the eccentric pushing component 210 generates an eccentric motion path, and the side farther away from the eccentric motion path pushes the direct-insertion punching cylinder 220 to move up and down in the vertical direction, the direct-insertion punching cylinder 220 is directly inserted into the soil, the contact area with the film is small, and there will be no phenomenon of scratching or tearing a large area of ​​the film. The straight-insertion punching tube 220 is inserted directly into the soil, and the contact surface with the soil is only the wall surface of the straight-insertion punching tube 220, and the soil will not be squeezed. When the straight-insertion punching tube 220 is inserted directly into the soil, the straight-insertion punching tube 220 and the elastic push-back assembly 230 move relative to each other. At this time, the movement state is that the straight-insertion punching tube 220 moves downward, and the elastic push-back assembly 230 is stationary. The soil in the internal cavity of the straight-insertion punching tube 220 is squeezed by the straight-insertion punching tube 220 and the elastic push-back assembly 230, and the soil in the film is squeezed by the straight-insertion punching tube 220 and the elastic push-back assembly 230. The soil is relatively moist compared to the soil outside the film. During the mutual squeezing process, the soil will be squeezed and compacted, remaining in the internal cavity of the direct-insertion punching cylinder 220. When the soil in the internal cavity of the direct-insertion punching cylinder 220 is squeezed and compacted, the seeds in the seed-dispensing assembly 240 will be pushed into the internal cavity of the direct-insertion punching cylinder 220 through the seed-pushing assembly 250. Subsequently, the direct-insertion punching cylinder 220 and the elastic push-back assembly 230 continue to move relative to each other. At this time, the movement state is that the direct-insertion punching cylinder 220 moves upward, and the elastic push-back assembly 230 is stationary. The direct-insert punching cylinder 220 is already located above the film, and a hole will be left where the direct-insert punching cylinder 220 is inserted into the soil. At this time, the soil in the direct-insert punching cylinder 220 will be pushed out from the internal cavity of the direct-insert punching cylinder 220 through the elastic push-back component 230. The soil and seeds discharged from the direct-insert punching cylinder 220 will become loose through free fall, and fall back into the hole again. The soil structure will also be relatively loose, and the surface of the seeds will be covered with more soil, thereby improving the germination rate and survival rate of the seeds.

[0035] For further description, see Figures 1 to 5The eccentric pushing assembly 210 includes a rotating shaft 211, a rotating cam 212, a limiting plate 213, and a belt 214. The rotating shaft 211 is mounted on the frame 110 and can rotate on the frame 110. The rotating cam 212 is sleeved on the rotating shaft 211. The rotating shaft 211 rotates and drives the rotating cam 212 to rotate. A pair of limiting plates 213 are provided, which are respectively arranged on the end surfaces of the rotating cam 212 on both sides. One end of the belt 214 is connected to the rotating shaft 211 and the other end is connected to the driving mechanism 30. The movement of the driving mechanism 30 drives the belt 214 to rotate, and the rotation of the belt 214 drives the rotating shaft 211 to rotate. The rotating shaft 211 passes through the rotating cam 212 and is fixed. The diameter of the limiting plate 213 is larger than the maximum diameter of the rotating cam 212, and the rotating cam 212 can be clamped between the pair of limiting plates 213.

[0036] Specifically, the rotating cam 212 can move along the axis of the rotating shaft 211, and the rotating cam 212 is locked on the rotating shaft 211 by a pin.

[0037] Specifically, both ends of the rotating shaft 211 are provided with rotating shaft 211 bearings, and the rotating shaft 211 bearings can be installed on the frame 110 so that the rotating shaft 211 can rotate on the frame 110. One end of the rotating shaft 211 is also provided with a groove, and the belt 214 can be clamped in the groove.

[0038] As a further preference, see Figures 6 to 10The straight-insertion punching cylinder 220 includes a cylinder body 221 and an extrusion plate 222. The cylinder body 221 is vertically arranged, and the extrusion plate 222 is arranged on the upper end surface of the cylinder body 221. The upper end surface of the extrusion plate 222 is in contact with the outer surface of the rotating cam 212, and the extrusion plate 222 is located between a pair of limiting plates 213. The limiting plate 213 is mainly used to clamp the extrusion plate 222 between the pair of limiting plates 213, mainly playing a limiting role. When the rotating cam 212 pushes the cylinder body 221 to move up and down in the vertical direction, it prevents the rotating cam 212 and the extrusion plate 222 from being misaligned and deviating. A sliding groove 2211 is also provided on the cylinder body 221, and the sliding groove 2211 is located on the side wall of the lower end of the cylinder body 221. The motion state is: when the rotating shaft 211 drives the rotating cam 212 to rotate, in the first state, when the rotating cam 212 rotates downward, the eccentric running path of the rotating cam 212 gradually becomes longer, thereby squeezing the extrusion plate 222, pushing the cylinder 221 to move downward in the vertical direction, and when the eccentric running path of the rotating cam 212 is at the farthest point, the cylinder 221 also moves to the lowest point in the vertical direction; in the second state, the rotating cam 212 rotates, and the eccentric running path of the rotating cam 212 gradually becomes shorter, and no longer squeezes the extrusion plate 222, and the cylinder 221 moves upward in the vertical direction. When the eccentric running path of the rotating cam 212 is at the nearest point, the cylinder 221 also moves to the highest point in the vertical direction.

[0039] Specifically, the cylinder 221 is a square cylinder, and a sharp corner is provided at the lower end of the cylinder 221, so that the cylinder 221 can be inserted into the soil and the cylinder 221 can break the film without causing large-scale tearing of the film.

[0040] Further, see Figure 6The elastic push-back assembly 230 includes a frame 231, a sleeve 232, a push-back elastic member 233, a movable slider 234 and a soil push plate 235. The frame 231 is set on the frame 110, the sleeve 232 is fixed on the frame 231, the cylinder 221 is sleeved in the sleeve 232, and the sleeve can move up and down along the sleeve 232. One end of the push-back elastic member 233 is connected to the sleeve 232, and the other end is connected to the sleeve. Then, when the sleeve moves up and down along the sleeve plate 232, the push-back elastic member 233 can extend or contract, and the movable slider 234 is arranged in the slide groove 2211. One end of the movable slider 234 is connected to the frame 231, and the other end is connected to the soil push plate 235. The soil push plate 235 is arranged in the sleeve, and the soil push plate 235 is in contact with the inner wall of the sleeve. The soil push plate 235 can move up and down along the inner wall of the sleeve.

[0041] See also Figures 6 to 10 The relative movement of the elastic push-back assembly 230 and the straight-insertion punching cylinder 220 is as follows: when the rotating cam 212 pushes the straight-insertion punching cylinder 220 to move downward, the cylinder body 221 moves vertically downward along the sleeve plate 232, the movable slider 234 does not move, the movable slider 234 is clamped in the slide groove 2211, the soil pushing plate 235 and the movable slider 234 remain fixed, and when the cylinder body 221 moves downward in the vertical direction, the push-back elastic member 23 3 is pulled and stretched, the push-back elastic member 233 is in a stressed state, and the soil pushing plate 235 moves from the side close to the lower end of the cylinder 221 to the side away from the lower end of the cylinder 221. After the soil enters the internal cavity of the cylinder 221, it first contacts the soil pushing plate 235. As the cylinder 221 continues to be inserted into the soil, the soil and the soil pushing plate 235 squeeze each other. During the squeezing process, the soil becomes solid and fits into the cavity on the inner wall of the cylinder 221. Subsequently, The rotating cam 212 rotates and no longer squeezes the extrusion plate 222. The push-back elastic member 233 is no longer under force, and the push-back elastic member 233 will be shortened, driving the cylinder 221 to move vertically upward along the sleeve plate 232. When the cylinder 221 moves upward, the soil pushing plate 235 will gradually approach the lower end of the cylinder 221, and the soil in the cavity of the cylinder 221 will be pushed out through the soil pushing plate 235. During the process of pushing soil with the soil pushing plate 235, the lower end of the cylinder 221 is already above the film, and the soil pushed out from the cavity of the cylinder 221 will fall freely. During the free fall process, the soil is no longer bound by the cavity of the cylinder 221, and will change from a solid state to a loose state and fall directly below the cavity of the cylinder 221.

[0042] Specifically, the soil pushing plate 235 is L-shaped. When the cylinder 221 is not inserted into the soil, the soil pushing plate 235 will block the connection between the seed pushing component 250 and the cylinder 221 to prevent the seeds from slipping into the cylinder 221. When the cylinder 221 is inserted into the soil, the soil pushing plate 235 is located above the connection between the seed pushing component 250 and the cylinder 221. The seed pushing component 250 and the cylinder 221 are connected to each other, which facilitates the seed pushing component 250 to push the seeds into the internal cavity of the cylinder 221.

[0043] For further information, see Figure 7 The push-back elastic member 233 includes a first clamping plate 2331, a second clamping plate 2332 and a rotation spring 2333. The first clamping plate 2331 is fixedly set on the sleeve plate 232, and the second clamping plate 2332 is fixedly set on the outer wall of the cylinder 221. The second clamping plate 2332 is located below the first clamping plate 2331. The rotation spring 2333 is located between the first clamping plate 2331 and the second clamping plate 2332. One end of the rotation spring 2333 is connected to the first clamping plate 2331, and the other end is connected to the second clamping plate 2332. The first clamping plate 2331 is fixed, and the second clamping plate 2332 moves with the movement of the cylinder 221. When the second clamping plate 2332 moves, the return spring 2333 will be stretched or shortened. At the same time, the return spring 2333 can be removed from the first clamping plate 2331 and the second clamping plate 2332. When the return spring 2333 is damaged or the elastic force is insufficient, it is easy to replace the return spring 2333.

[0044] There is a preference, see Figures 1 to 5 The seeding assembly 240 includes a seeding member 241, a delivery pipe 242, and a discharge pipe 243. The seeding member 241 is mounted on the frame 110, and the delivery pipe 242 is disposed below the seeding member 241. One end of the delivery pipe 242 is connected to the seeding member 241, and the other end is connected to the discharge pipe 243. The discharge pipe 243 is in communication with the seed pushing assembly 250. The seeds first enter the seeding member 241, where the seeding member 241 separates the seeds into individual seeds. The individual seeds are then transported into the delivery pipe 242. The delivery pipe 242 is tilted or vertically arranged to transport the seeds from a high place to a low place. During the seed transport process, the seeds are quickly transported to the discharge pipe 243 by air blowing, and the discharge pipe 243 then transports the seeds to the seed pushing assembly 250.

[0045] Specifically, the discharge pipe 243 is arranged at an angle to facilitate the transportation of seeds into the seed pushing assembly 250 through the exhaust pipe, thereby preventing the seeds from being stuck.

[0046] Further preferably, the seed pushing assembly 250 includes a seed pushing cylinder 251 and a seed pushing connecting rod 252, the seed pushing cylinder 251 is tiltedly arranged on the side wall of the straight-insertion punching cylinder 220, and the seed pushing cylinder 251 is located on the side away from the eccentric pushing assembly 210, the seed pushing cylinder 251 is interconnected with the inner wall of the straight-insertion punching cylinder 220, and the seed pushing cylinder 251 is interconnected with the discharge pipe 243, one end of the seed pushing connecting rod 252 is sleeved in the seed pushing cylinder 251, and can move in the seed pushing cylinder 251, the other end of the seed pushing connecting rod 252 is connected to the eccentric pushing assembly 210, and the eccentric pushing assembly 210 is used to drive the seed pushing connecting rod 252 to rotate. The seed pushing connecting rod 252 can move back and forth in the seed pushing cylinder 251. The seed pushing cylinder 251 is connected to the discharge cylinder. The seeds discharged from the discharge cylinder will fall into the seed pushing cylinder 251. The diameter of the seed pushing cylinder 251 is fixed, and only one or two seeds are allowed to remain in the seed pushing cylinder 251.

[0047] Specifically, the seed pushing cylinder 251 has a certain length, and the seed pushing connecting rod 252 can move back and forth in the seed pushing cylinder 251 and can prevent the seed pushing connecting rod 252 from sliding out of the seed pushing cylinder 251.

[0048] Further, see Figure 6 The seed pushing connecting rod 252 includes a fixed rod 2521, a first connecting rod 2522, a second connecting rod 2523 and a seed pushing column 2524. One end of the fixed rod 2521 is fixedly arranged on the eccentric pushing assembly 210, one end of the first connecting rod 2522 is rotatably connected to the other end of the fixed rod 2521, one end of the second connecting rod 2523 is rotatably connected to the other end of the first connecting rod 2522, and the seed pushing column 2524 is rotatably connected to the other end of the second connecting rod 2523. The seed pushing column 2524 is sleeved in the seed pushing cylinder 251, and the seed pushing column 2524 can move in the seed pushing cylinder 251.

[0049] The specific implementation of the seed pushing component 250 is as follows: the setting position of the fixed rod 2521 is located on the maximum stroke side of the rotating cam 212. When the rotating cam 212 pushes the cylinder 221 to move downward, the fixed rod 2521 also drives the first connecting rod 2522 to have a downward movement trend. The downward movement of the first connecting rod 2522 will also drive the second connecting rod 2523 to move. The movement of the second connecting rod 2523 will drive the seed pushing column 2524 to move along the seed pushing cylinder 251 to the side close to the cylinder 221. When the cylinder 221 moves downward in the vertical direction, the seed pushing column 2524 also moves downward in the inclined direction inside the seed pushing cylinder 251, which is a synchronous downward movement method. When the When the cylinder 221 is inserted into the soil, there is soil in the internal cavity of the cylinder 221. Since the seed pushing cylinder 251 is connected to the cylinder 221, the seed pushing column 2524 will push the seeds in the seed pushing cylinder 251 into the soil in the internal cavity of the cylinder 221. Since the seed pushing column 2524 moves downward at an angle, the seeds will be pushed to a position close to the lower end opening of the cylinder 221, and more soil will remain above the seeds. When the soil pushing plate 235 pushes the soil in the cylinder 221 out, the seeds will be pushed out of the cylinder 221 first, and the seeds will fall into the hole below first. Then, the soil will be pushed out again, and the fallen soil will bury the seeds without exposing the seeds to the outside, and there is no need to manually cover the seeds with soil again.

[0050] Furthermore, the number of the sowing mechanisms 20 is N, where N≥1. Using multiple sowing mechanisms 20 to simultaneously sow on multiple rows of land covered with film can improve sowing efficiency.

[0051] Furthermore, the drive mechanism 30 includes a drive motor 310 and a drive shaft 320. The drive motor 310 is disposed on the frame 110. One end of the drive shaft 320 is connected to the drive motor 310, and the other end is connected to the running wheel 120. The drive shaft 320 is also connected to the eccentric propulsion assembly 210. When the drive shaft 320 rotates, it drives the running wheel 120 to move, and at the same time, it also drives the eccentric propulsion assembly 210 to rotate, and the sowing mechanism 20 sows seeds. When the drive shaft 320 does not rotate, the running wheel 120 stops moving, the eccentric propulsion assembly 210 also stops rotating, and the sowing mechanism 20 no longer sows seeds.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A sowing device for planting on a film, characterized in that: It includes a walking mechanism, a sowing mechanism and a driving mechanism, wherein the sowing mechanism is mounted on the walking mechanism, the walking mechanism moves and drives the sowing mechanism to sow, and the driving mechanism is connected to the walking mechanism and is used to drive the walking mechanism to move; The traveling mechanism comprises a frame and a traveling wheel, the traveling wheel is arranged under the frame, the traveling wheel is used to drive the frame to move, the sowing mechanism comprises an eccentric pushing assembly, a direct-insertion punching cylinder, an elastic return pushing assembly, a seed-discharging assembly and a seed-pushing assembly, the eccentric pushing assembly is connected to the driving mechanism and drives the eccentric pushing assembly to rotate eccentrically, the direct-insertion punching cylinder contacts the eccentric pushing assembly, the direct-insertion punching cylinder can move up and down in a vertical direction, the elastic return pushing assembly is sleeved on the direct-insertion punching cylinder, and under the push of the eccentric pushing assembly, the elastic return pushing assembly and the direct-insertion punching cylinder make relative motion, the seed-discharging assembly is communicated with the direct-insertion punching cylinder, the seed-discharging assembly is used to discharge single seeds, and the seed-pushing assembly is communicated with the direct-insertion punching cylinder, and is used to push the seeds into the cavity of the direct-insertion punching cylinder; The seeding assembly includes a seeding piece, a conveying pipe and a discharge pipe. The seeding piece is mounted on the frame, and the conveying pipe is arranged below the seeding piece. One end of the conveying pipe is connected to the seeding piece, and the other end is connected to the discharge pipe. The discharge pipe is connected to the seed pushing assembly. The seed pushing assembly includes a seed pushing cylinder and a seed pushing connecting rod, the seed pushing cylinder is obliquely arranged on the side wall of the straight-insertion punching cylinder, and the seed pushing cylinder is located on a side away from the eccentric pushing assembly, the seed pushing cylinder and the inner wall of the straight-insertion punching cylinder are communicated with each other, and the seed pushing cylinder and the discharge pipe are communicated with each other, one end of the seed pushing connecting rod is sleeved in the seed pushing cylinder and can move in the seed pushing cylinder, the other end of the seed pushing connecting rod is connected to the eccentric pushing assembly, and the eccentric pushing assembly is used to drive the seed pushing connecting rod to rotate; The straight-insert punching barrel comprises a barrel, which is vertically arranged and has a slide groove formed on the barrel, and the slide groove is located on the side wall of the lower end of the barrel; The elastic push-back assembly includes a frame, a sleeve, a push-back elastic member, a movable slider and a soil push plate. The frame is arranged on the frame, the sleeve is fixedly arranged on the frame, the cylinder is sleeved in the sleeve, and the cylinder can move up and down along the sleeve. One end of the push-back elastic member is connected to the sleeve, and the other end is connected to the cylinder. When the cylinder moves up and down along the sleeve, the push-back elastic member can extend or contract. The movable slider is arranged in the slide groove, one end of the movable slider is connected to the frame, and the other end is connected to the soil push plate. The soil push plate is arranged in the cylinder, and the soil push plate and the inner wall of the cylinder are in contact with each other, and the soil push plate can move up and down along the inner wall of the cylinder.

2. The sowing device for planting on film according to claim 1, characterized in that: The eccentric pushing assembly includes a rotating shaft, a rotating cam, a limiting plate and a belt. The rotating shaft is mounted on the frame and can rotate on the frame. The rotating cam is sleeved on the rotating shaft. The rotating shaft rotates and drives the rotating cam to rotate. A pair of limiting plates are provided, which are respectively arranged on the end surfaces of both sides of the rotating cam. One end of the belt is connected to the rotating shaft, and the other end is connected to the driving mechanism. The movement of the driving mechanism drives the belt to rotate, and the rotation of the belt drives the rotating shaft to rotate.

3. The sowing device for planting on film according to claim 2, characterized in that: The straight-insert punching barrel further includes an extrusion plate, which is arranged on the upper end surface of the barrel body. The upper end surface of the extrusion plate is in contact with the outer surface of the rotating cam, and the extrusion plate is located between a pair of limiting plates.

4. The sowing device for planting on film according to claim 3, characterized in that: The push-back elastic member includes a first clamping plate, a second clamping plate and a rotation spring. The first clamping plate is fixedly arranged on the sleeve plate, the second clamping plate is fixedly arranged on the outer wall of the cylinder, the second clamping plate is located below the first clamping plate, and the rotation spring is located between the first clamping plate and the second clamping plate. One end of the rotation spring is connected to the first clamping plate, and the other end is connected to the second clamping plate.

5. The sowing device for planting on film according to claim 1, characterized in that: The seed pushing connecting rod includes a fixed rod, a first connecting rod, a second connecting rod and a seed pushing column. One end of the fixed rod is fixedly arranged on the eccentric pushing assembly. One end of the first connecting rod is rotatably connected to the other end of the fixed rod. One end of the second connecting rod is rotatably connected to the other end of the first connecting rod. The seed pushing column is rotatably connected to the other end of the second connecting rod. The seed pushing column is sleeved in the seed pushing barrel, and the seed pushing column can move in the seed pushing barrel.

6. The sowing device for planting on film according to claim 1, characterized in that: There are N sowing mechanisms, where N≥1.

7. The sowing device for planting on film according to claim 1, characterized in that: The driving mechanism includes a driving motor and a driving shaft. The driving motor is arranged on the frame. One end of the driving shaft is connected to the driving motor, and the other end is connected to the walking wheel. The driving shaft is also connected to the eccentric pushing component.

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