Film mulching device for agricultural planting

Abstract

The invention discloses a film mulching device for agricultural planting, and belongs to the technical field of planting, the film mulching device comprises a soil lifting device, a seed sowing device, a film mulching device, a suspension rack and a power transmission device, the power transmission device is arranged on the upper side of the suspension rack, and the soil lifting device, the seed sowing device and the film mulching device are arranged on the lower side of the suspension rack in a linear array mode; the film mulching device is positioned between the seed sowing device and the soil lifting device. A tractor drags the suspension rack to drive the machine tool to advance, the power transmission device is driven to operate, then the soil lifting device is driven to dig a groove in the soil surface, the film mulching device is used for mulching the soil with the groove, the soil lifting device covers the redundant soil on the front side to the two sides of the groove covered with a water permeable film, and then the soil lifting device is driven to lift the soil lifting device to dig the groove. The water permeable film is broken through the seed-metering device to plant the seeds in the groove, and then the soil covering wheel performs soil covering operation to cover and press the mulching film again.

Description

Technical Field

[0001] The present invention belongs to the technical field of planting, and specifically refers to a film laying device for agricultural planting. Background Art

[0002] Film mulching for crop planting is a main technical measure for developing dryland water-saving agriculture and maintaining the ecological environment. Dryland agriculture is agricultural production relying on natural precipitation under the condition of insufficient rainfall and no irrigation. Dryland film mulching can conserve soil moisture and water, improve the physical properties of regional soil, increase crop yields. At the same time, the Shanxi Academy of Agricultural Sciences has successfully developed "permeable film" and "VVV planting mode", providing new development space for film laying and sowing.

[0003] The permeable film is a permeable film with a local double-layer micron-level linear small hole structure. The "VVV planting mode" is that during sowing, the topsoil is scraped away by agricultural machinery to sow the seeds into the wet soil. After sowing, a V-shaped planting ditch is formed on the ground. For this V-shaped sowing ditch, it is a micro solar ventilation greenhouse, with fast emergence and no seedling burning. It can gather trace precipitation to the roots of the seedlings, creating a relatively excellent micro-ecological environment of water, fertilizer, air and heat, solving the water shortage and drought problems of dryland crops, and having a significant yield increase effect. To promote new planting technologies and planting modes, a corresponding film laying device for agricultural planting is needed. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the present invention provides a film laying device for agricultural planting, effectively solving the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a film laying device for agricultural planting, including a soil lifting device, a seed metering device, a film covering device, a suspension frame and a power transmission device. The power transmission device is arranged on the upper side of the suspension frame. The soil lifting device, the seed metering device and the film covering device are linearly arrayed on the lower side of the suspension frame. The film covering device is located between the seed metering device and the soil lifting device. The soil lifting device includes a soil lifting box and a soil lifting chain. The soil lifting chain rotates in the soil lifting box. A soil gathering groove is arranged at the front end of the soil lifting box. A soil discharging groove is arranged at the rear end of the soil lifting box. A soil dividing plate is arranged in the soil discharging groove. A support plate is arranged in the middle of the soil lifting box. The support plate is arranged on the suspension frame. Transmission rod fixing seats are arranged on both sides of the rear wall of the soil discharging groove.

[0006] Preferably, the soil loosening rod on the front side of the suspension frame breaks the soil. The soil gathering groove of the soil lifting box opens a ditch on the farmland. The excess soil is conveyed to the soil discharging groove by the soil lifting chain. As the machine advances, since the rear permeable film is covered by the soil, the permeable film on the film hanging rod is continuously pulled out and covered on the groove. At the same time, the soil in the soil discharging groove falls onto the ground after film covering through the soil dividing plate, and is preliminarily covered with soil on both sides of the groove to form a ridge slope, which is beneficial to rainwater collection.

[0007] Further, the seed metering device includes a seed storage box, a seed sorting box, and a seed sorting turntable. The seed storage box is arranged above the seed sorting box. The seed sorting turntable rotates inside the seed sorting box. The seed sorting box is arranged on the rear wall of the soil discharging groove.

[0008] Further, a feeding pipe is arranged above the seed sorting box, a discharging pipe is arranged below the seed sorting box, a brush is arranged inside the seed sorting box. The brush is located below the feeding pipe. The brush slides on the side wall of the seed sorting turntable. The seed storage box is connected to the feeding pipe. Seed grooves are arranged at the edge of the seed sorting turntable. Pushing rods are arranged on both sides of the center of the seed sorting turntable. The pushing rods are located outside the seed sorting box. A first transmission wheel is arranged outside the pushing rods.

[0009] Further, the seed metering device further includes a seed pressing shaft sleeve and a seed pressing shaft. The seed pressing shaft sleeve is arranged on the discharging pipe. The seed pressing shaft sleeve communicates with the discharging pipe. The seed pressing shaft slides inside the seed pressing shaft sleeve. A spring air chamber is formed between the top end inside the seed pressing shaft sleeve and the upper end of the seed pressing shaft.

[0010] Further, positioning grooves are arranged on both sides of the center of the seed pressing shaft sleeve. Bottom end chutes are arranged in a circumferential array on the top of the seed pressing shaft sleeve. A seed blocking wedge is arranged inside the bottom end chute. A wedge reset spring is arranged on the back of the seed blocking wedge. The end of the wedge reset spring is arranged on the inner wall of the bottom end chute.

[0011] Preferably, during the rotation of the seed sorting turntable, seeds will enter the seed grooves. When the seed grooves pass by the brush, the brush sweeps out the excess seeds in the seed grooves. When the seed grooves rotate to the lower side of the seed sorting box, the seeds fall into the seed pressing shaft sleeve through the discharging pipe. At the same time, the seed blocking wedge will block the seeds and fix the seeds at the bottom of the seed pressing shaft sleeve to prevent the seeds from falling.

[0012] Further, a seed pressing shaft spring is arranged on the top of the seed pressing shaft. The top of the seed pressing shaft spring is arranged at the top end inside the seed pressing shaft sleeve. The seed pressing shaft spring is located inside the spring air chamber. A bottom end groove is arranged at the bottom of the seed pressing shaft. An air passage runs through the center of the seed pressing shaft. Pressing rods are arranged on both sides of the seed pressing shaft. The pressing rods slide in the positioning grooves.

[0013] Preferably, when the seed sorting turntable rotates, the pushing rod of the seed sorting turntable will press down the pressing rod of the seed pressing shaft, driving the seed pressing shaft to move downward, and squeezing the seed blocking wedge at the bottom of the seed pressing shaft sleeve, driving the seeds to break through the permeable membrane and insert into the soil. When the seed pressing shaft retracts, the gas in the spring air chamber is ejected downward through the air passage, preventing the seeds in the bottom end groove from sliding out of the soil along with the seed pressing shaft. Compared with the duckbill seeder, the holes generated on the permeable membrane are smaller, preventing heat loss in low-temperature environments.

[0014] Further, the film covering device includes a film hanging rod and a permeable film. The support rods on both sides of the film hanging rod are arranged on the suspension frame, and the permeable film rotates on the film hanging rod.

[0015] Further, the suspension frame is provided with a first cross bar, a second cross bar and a third cross bar. A connecting suspension and a connecting seat are arranged on the first cross bar. A soil loosening rod is arranged on the front side of the first cross bar. A pressing wheel is arranged on the third cross bar. A pressing wheel buffer spring is arranged between the pressing wheel and the third cross bar. Soil covering wheels are arranged on both sides at the rear of the suspension frame. The support plate is arranged on the first cross bar and the second cross bar.

[0016] Preferably, after the seeds are planted, the soil covering wheels at the rear of the suspension frame perform soil covering operations, re-covering and pressing the plastic film, solving the problem of seedling hole displacement caused by the thermal expansion and contraction of the plastic film due to sunlight irradiation, effectively preventing the phenomena of seedling burning and seedling death caused by seedling hole displacement, and effectively preventing the tearing effect of strong winds on the plastic film.

[0017] Further, the power transmission device includes a power worm and an output gear shaft. The power worm is meshed and connected with the output gear shaft. The power worm and the output gear shaft are arranged in the gear box.

[0018] Further, the power transmission device further includes a first transmission rod, a second transmission rod and a driving shaft sleeve. The second transmission rod rotates on the transmission rod fixed seat. Transmission wheels II are arranged on both sides of the second transmission rod. Transmission columns are arranged in an array on the second transmission rod. The transmission columns are connected with the transmission wheels I through transmission belts. The first transmission rod penetrates through the soil lifting device. The driving shaft sleeve is arranged between the soil lifting device and the first transmission rod. The soil lifting chain is arranged on the driving shaft sleeve. A transmission wheel III is arranged on the driving shaft sleeve. The transmission wheels II are connected with the transmission wheels III on both sides through transmission belts. The output gear shaft is connected with the transmission wheel III through a transmission belt.

[0019] The beneficial effects achieved by the present invention with the above structure are as follows: 1. The soil loosening rod on the front side of the suspension frame breaks the soil. The soil gathering groove of the soil lifting box opens a ditch on the farmland. The excess soil is conveyed to the soil discharging groove by the soil lifting chain. The soil at the rear covers the permeable film. As the machine advances, the permeable film on the film hanging rod is continuously pulled out and covers the groove. At the same time, the soil in the soil discharging groove falls onto the ground after film covering through the soil dividing plate, and preliminary soil covering is carried out on both sides of the groove to form a ridge slope, which is beneficial to rainwater collection.

[0020] 2. During the rotation of the seed dividing turntable, the seeds will enter the seed grooves. When the seed grooves pass by the brush, the brush sweeps out the excess seeds in the seed grooves. When the seed grooves rotate to the lower side of the seed dividing box, the seeds fall into the pressure seed shaft sleeve through the feeding pipe. At the same time, the blocking seed wedge blocks will block the seeds and fix the seeds at the bottom of the pressure seed shaft sleeve to prevent the seeds from falling.

[0021] 3. When the seed-sorting turntable rotates, the lever of the seed-sorting turntable will press down the lever of the seed-pressing shaft, driving the seed-pressing shaft to move downward, and squeezing the seed-blocking wedge at the bottom of the seed-pressing shaft sleeve, driving the seeds to break through the water-permeable membrane and insert into the soil. When the seed-pressing shaft retracts, the gas in the spring air chamber is ejected downward through the air duct, preventing the seeds in the bottom groove from sliding out of the soil along with the seed-pressing shaft. Compared with the duckbill seeder, the holes generated on the water-permeable membrane are smaller, and heat loss is prevented in low-temperature environments.

[0022] 4. After the seeds are planted, the soil-covering wheel at the rear of the hanging frame performs soil-covering operations, covering and compacting the plastic film again, solving the problem of seedling hole displacement caused by the thermal expansion and contraction of the plastic film due to sunlight irradiation, effectively preventing the phenomena of seedling burning and seedling death caused by seedling hole displacement, and effectively preventing the tearing effect of strong winds on the plastic film. Description of the Drawings

[0023] Figure 1 is a perspective view of a film-laying device for agricultural planting proposed by the present invention; Figure 2 is a top view of a film-laying device for agricultural planting proposed by the present invention; Figure 3 is Figure 2 a cross-sectional view along the cutting line A-A in Figure 4 is Figure 2 a cross-sectional view along the cutting line B-B in Figure 5 is Figure 2 a cross-sectional view along the cutting line C-C in Figure 6 is Figure 3 a cross-sectional view along the cutting line D-D in Figure 7 is a structural schematic diagram of the seed-sorting turntable of a film-laying device for agricultural planting proposed by the present invention; Figure 8 is Figure 3 a partial enlarged view of part Ⅰ in

[0024] Among them, 1. Soil lifting device, 11. Soil lifting box, 111. Soil gathering groove, 112. Soil discharging groove, 1121. Soil dividing plate, 113. Support plate, 114. Transmission rod fixing seat, 12. Soil lifting chain, 2. Seed metering device, 21. Seed storage box, 22. Seed dividing box, 221. Feeding pipe, 223. Brush, 222. Discharging pipe, 23. Seed dividing turntable, 231. Seed groove, 232. Poking rod, 233. Driving wheel I, 24. Seed pressing shaft sleeve, 241. Spring air chamber, 242. Positioning groove, 243. Bottom chute, 244. Seed blocking wedge, 245. Wedge reset spring, 25. Seed pressing shaft, 251. Seed pressing shaft spring, 252. Air passage, 253. Bottom groove, 254. Pressing rod, 3. Film mulching device, 31. Film hanging rod, 32. Permeable film, 4. Suspension frame, 41. Cross bar I, 411. Connecting suspension, 412. Connecting seat, 413. Soil loosening rod, 42. Cross bar II, 43. Cross bar III, 44. Pressing wheel, 441. Pressing wheel buffer spring, 45. Soil covering wheel, 5. Power transmission device, 51. Power worm, 52. Output gear shaft, 53. Transmission rod I, 54. Transmission rod II, 541. Driving wheel II, 542. Transmission column, 55. Driving shaft sleeve, 551. Driving wheel III.

[0025] The attached drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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 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.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the attached drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0028] Such as Figures 1-8As shown in the figure, the present invention provides a film-laying device for agricultural planting, which includes a soil-lifting device 1, a seed metering device 2, a film-laying device 3, a suspension frame 4, and a power transmission device 5. The power transmission device 5 is arranged on the upper side of the suspension frame 4, and the soil-lifting device 1, the seed metering device 2, and the film-laying device 3 are linearly arrayed on the lower side of the suspension frame 4. The film-laying device 3 is located between the seed metering device 2 and the soil-lifting device 1. The soil-lifting device 1 includes a soil-lifting box 11 and a soil-lifting chain 12. The soil-lifting chain 12 rotates inside the soil-lifting box 11. A soil-gathering groove 111 is provided at the front end of the soil-lifting box 11, and a soil-discharging groove 112 is provided at the rear end of the soil-lifting box 11. A soil-dividing plate 1121 is arranged in the soil-discharging groove 112. A support plate 113 is arranged in the middle of the soil-lifting box 11, and the support plate 113 is arranged on the suspension frame 4. Transmission rod fixing seats 114 are arranged on both sides of the rear wall of the soil-discharging groove 112.

[0029] The seed metering device 2 includes a seed storage box 21, a seed-sorting box 22, and a seed-sorting turntable 23. The seed storage box 21 is arranged above the seed-sorting box 22. The seed-sorting turntable 23 rotates inside the seed-sorting box 22. The seed-sorting box 22 is arranged on the rear wall of the soil-discharging groove 112.

[0030] An inlet pipe 221 is arranged above the seed-sorting box 22, and a discharge pipe 222 is arranged below the seed-sorting box 22. A brush 223 is arranged inside the seed-sorting box 22. The brush 223 is located below the inlet pipe 221 and slides on the side wall of the seed-sorting turntable 23. The seed storage box 21 is connected to the inlet pipe 221. Seed grooves 231 are arranged on the edge of the seed-sorting turntable 23. Pushing rods 232 are arranged on both sides of the center of the seed-sorting turntable 23. The pushing rods 232 are located outside the seed-sorting box 22, and a first transmission wheel 233 is arranged outside the pushing rods 232.

[0031] The seed metering device 2 further includes a seed pressing bushing 24 and a seed pressing shaft 25. The seed pressing bushing 24 is arranged on the discharge pipe 222, and the seed pressing bushing 24 communicates with the discharge pipe 222. The seed pressing shaft 25 slides inside the seed pressing bushing 24. A spring air chamber 241 is formed between the top end inside the seed pressing bushing 24 and the upper end of the seed pressing shaft 25.

[0032] Positioning grooves 242 are arranged on both sides of the center of the seed pressing bushing 24. Bottom end chutes 243 are arranged in a circumferential array on the top of the seed pressing bushing 24. Blocking seed wedges 244 are arranged inside the bottom end chutes 243. A wedge reset spring 245 is arranged on the back of the blocking seed wedge 244, and the end of the wedge reset spring 245 is arranged on the inner wall of the bottom end chute 243.

[0033] A seed pressing shaft spring 251 is arranged on the top of the seed pressing shaft 25. The top of the seed pressing shaft spring 251 is arranged at the top end inside the seed pressing bushing 24. The seed pressing shaft spring 251 is located inside the spring air chamber 241. A bottom end groove 253 is arranged at the bottom of the seed pressing shaft 25. An air passage 252 runs through the center of the seed pressing shaft 25. Pressing rods 254 are arranged on both sides of the seed pressing shaft 25, and the pressing rods 254 slide in the positioning grooves 242.

[0034] The film covering device 3 includes a film hanging rod 31 and a permeable film 32. The support rods on both sides of the film hanging rod 31 are arranged on the suspension frame 4, and the permeable film 32 rotates on the film hanging rod 31.

[0035] The suspension frame 4 is provided with a first cross bar 41, a second cross bar 42 and a third cross bar 43. The first cross bar 41 is provided with a connecting suspension 411 and a connecting seat 412. A soil loosening rod 413 is arranged on the front side of the first cross bar 41. A pressing wheel 44 is arranged on the third cross bar 43. A pressing wheel buffer spring 441 is arranged between the pressing wheel 44 and the third cross bar 43. Soil covering wheels 45 are arranged on both sides at the rear of the suspension frame 4. The support plate 113 is arranged on the first cross bar 41 and the second cross bar 42.

[0036] The power transmission device 5 includes a power worm 51 and an output gear shaft 52. The power worm 51 is meshed and connected with the output gear shaft 52. The power worm 51 and the output gear shaft 52 are arranged in the gear box.

[0037] The power transmission device 5 further includes a first transmission rod 53, a second transmission rod 54 and a driving shaft sleeve 55. The second transmission rod 54 rotates on the transmission rod fixing seat 114. Transmission wheels two 541 are arranged on both sides of the second transmission rod 54. Transmission columns 542 are arranged in an array on the second transmission rod 54. The transmission columns 542 are connected with the transmission wheels one 233 through transmission belts. The first transmission rod 53 penetrates through the soil lifting device 1. The driving shaft sleeve 55 is arranged between the soil lifting device 1 and the first transmission rod 53. The soil lifting chain 12 is arranged on the driving shaft sleeve 55. A transmission wheel three 551 is arranged on the driving shaft sleeve 55. The transmission wheels two 541 are connected with the transmission wheels three 551 on both sides through transmission belts. The output gear shaft 52 is connected with the transmission wheel three 551 through a transmission belt.

[0038] During specific use, the tractor pulls the implement through the connecting suspension 411 and the connecting seat 412 to carry out operations, and at the same time drives the power worm 51 to rotate. The power worm 51 drives the output gear shaft 52 to rotate. The output gear shaft 52 drives the driving shaft sleeve 55 in the middle on the first transmission rod 53 to rotate, and then drives the first transmission rod 53 to rotate. All the driving shaft sleeves 55 on the first transmission rod 53 rotate following it. The driving shaft sleeve 55 drives the soil lifting chain 12 to rotate. At the same time, the transmission wheels three 551 on both sides drive the transmission wheels two 541 to rotate. The transmission wheels two 541 drive the second transmission rod 54 to rotate. The transmission columns 542 on the second transmission rod 54 drive the transmission wheels one 233 on both sides of the seed dividing turntable 23 to rotate, that is, the seed dividing turntable 23 rotates.

[0039] The soil-breaking rod 413 on the front side of the hanging frame 4 breaks up the soil. The soil-gathering groove 111 of the soil-lifting box 11 opens a ditch on the farmland. The excess soil is conveyed by the soil-lifting chain 12 into the soil-discharging groove 112. As the machine advances, since the water-permeable membrane 32 at the rear is covered by the soil, the water-permeable membrane 32 on the film-hanging rod 31 is continuously pulled out and covers the groove. At the same time, the soil in the soil-discharging groove 112 falls onto the ground after film covering through the soil-dividing plate 1121, and preliminary soil covering is carried out on both sides of the groove to form ridge slopes, which is beneficial to rainwater collection.

[0040] After preliminary soil covering, seed planting is carried out by the seed planter 2. Among them, the seeds in the seed storage box 21 enter the upper side of the seed-sorting box 22 through the feeding pipe 221. When the seed groove 231 on the seed-sorting turntable 23 rotates to the upper side of the seed-sorting box 22, the seeds enter the seed groove 231. As the seed-sorting turntable 23 rotates, the seed groove 231 will pass by the brush 223. While the brush blocks the seeds, the excess seeds in the seed groove 231 are swept out. When the seed groove 231 rotates to the lower side of the seed-sorting box 22, the seeds fall into the seed-pressing bushing 24 through the feeding pipe 222 and are blocked at the bottom of the seed-pressing bushing 24 by the seed-blocking wedge 244. At the same time, the lever 232 of the seed-sorting turntable 23 rotates downward and presses the pressing lever 254 of the seed-pressing shaft 25, driving the seed-pressing shaft 25 to move downward. During the downward movement of the seed-pressing shaft 25, the seed-pressing shaft spring 251 is stretched, and air enters the spring air chamber 241 through the air passage 252 of the seed-pressing shaft 25. The volume of the spring air chamber 241 increases. When the seed-pressing shaft 25 moves to the bottom of the seed-pressing shaft 25, it will squeeze the inclined side of the seed-blocking wedge 244, causing the seed-blocking wedge 244 to squeeze the wedge return spring 245 and slide into the bottom chute 243. At the same time, the bottom groove 253 will ensure that the seeds are not damaged. As the seed-blocking wedge 244 completely slides into the bottom chute 243, the seed-pressing shaft 25 continues to move downward and breaks through the plastic film and pierces into the soil. At the same time, the seeds in the bottom groove 253 are also pushed into the soil. As the lever 232 passes over the pressing lever 254, the seed-pressing shaft spring 251 drives the seed-pressing shaft 25 to move upward and squeezes the spring air chamber 241. The gas in the spring air chamber 241 is ejected downward through the air passage 252 to prevent the seeds in the bottom groove 253 from sliding out of the soil following the seed-pressing shaft 25. As the pressing wheel 44 rolls over, the soil covers the seeds.

[0041] After the seed planting is completed, the soil-covering wheel 45 on the rear side of the hanging frame 4 performs the soil-covering operation, covering and pressing the plastic film again, solving the problem of seedling hole displacement caused by the thermal expansion and contraction of the plastic film due to sunlight irradiation, effectively preventing the phenomena of seedling burning and seedling death caused by seedling hole displacement, and effectively preventing the tearing effect of strong winds on the plastic film.

[0042] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0044] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A film-laying device for agricultural planting, characterized in that: It includes a soil lifting device (1), a seed metering device (2), a film covering device (3), a suspension frame (4) and a power transmission device (5). The power transmission device (5) is arranged on the upper side of the suspension frame (4). The soil lifting device (1), the seed metering device (2) and the film covering device (3) are linearly arrayed on the lower side of the suspension frame (4). The film covering device (3) is located between the seed metering device (2) and the soil lifting device (1). The soil lifting device (1) includes a soil lifting box (11) and a soil lifting chain (12). The soil lifting chain (12) rotates inside the soil lifting box (11). A soil gathering groove (111) is provided at the front end of the soil lifting box (11). A soil discharging groove (112) is provided at the rear end of the soil lifting box (11). A soil dividing plate (1121) is provided in the soil discharging groove (112). A support plate (113) is provided in the middle of the soil lifting box (11). The support plate (113) is arranged on the suspension frame (4). Transmission rod fixing seats (114) are provided on both sides of the rear wall of the soil discharging groove (112).

2. The film laying device for agricultural planting according to claim 1, characterized in that: The seed metering device (2) includes a seed storage box (21), a seed dividing box (22) and a seed dividing turntable (23). The seed storage box (21) is arranged above the seed dividing box (22). The seed dividing turntable (23) rotates inside the seed dividing box (22). The seed dividing box (22) is arranged on the rear wall of the soil discharging groove (112).

3. The film laying device for agricultural planting according to claim 2, wherein: An inlet pipe (221) is provided above the seed dividing box (22). A discharge pipe (222) is provided below the seed dividing box (22). A brush (223) is provided inside the seed dividing box (22). The brush (223) is located below the inlet pipe (221). The brush (223) slides on the side wall of the seed dividing turntable (23). The seed storage box (21) is connected to the inlet pipe (221). Seed grooves (231) are provided at the edge of the seed dividing turntable (23). Pushing rods (232) are provided on both sides of the center of the seed dividing turntable (23). The pushing rods (232) are located outside the seed dividing box (22). A first transmission wheel (233) is provided outside the pushing rods (232).

4. The mulching film laying device for agricultural planting according to claim 3, wherein: The seed metering device (2) further includes a seed pressing bushing (24) and a seed pressing shaft (25). The seed pressing bushing (24) is arranged on the discharge pipe (222). The seed pressing bushing (24) communicates with the discharge pipe (222). The seed pressing shaft (25) slides inside the seed pressing bushing (24). A spring air chamber (241) is formed between the top end inside the seed pressing bushing (24) and the upper end of the seed pressing shaft (25).

5. The mulching film laying device for agricultural planting according to claim 4, wherein: Positioning grooves (242) are provided on both sides of the center of the seed pressing bushing (24). Bottom end chutes (243) are circumferentially arrayed at the top of the seed pressing bushing (24). Seed blocking wedges (244) are provided inside the bottom end chutes (243). A wedge reset spring (245) is provided on the back of the seed blocking wedges (244). The end of the wedge reset spring (245) is arranged on the inner wall of the bottom end chutes (243).

6. The mulching film laying device for agricultural planting according to claim 5, wherein: A seed pressing shaft spring (251) is provided at the top of the seed pressing shaft (25). The top of the seed pressing shaft spring (251) is provided at the inner top end of the seed pressing shaft sleeve (24). The seed pressing shaft spring (251) is located within the spring air cavity (241). A bottom end groove (253) is provided at the bottom of the seed pressing shaft (25). An air passage (252) that runs through is provided at the center of the seed pressing shaft (25). Pressing rods (254) are provided on both sides of the seed pressing shaft (25), and the pressing rods (254) slide within the positioning grooves (242).

7. The film laying device for agricultural planting according to claim 6, characterized in that: The film covering device (3) includes a film hanging rod (31) and a permeable film (32). Support rods on both sides of the film hanging rod (31) are provided on the suspension frame (4), and the permeable film (32) rotates on the film hanging rod (31).

8. The mulching film laying device for agricultural planting according to claim 7, wherein: The suspension frame (4) is provided with a first cross bar (41), a second cross bar (42), and a third cross bar (43). A connecting suspension (411) and a connecting seat (412) are provided on the first cross bar (41). A soil loosening rod (413) is provided on the front side of the first cross bar (41). A pressing wheel (44) is provided on the third cross bar (43). A pressing wheel buffer spring (441) is provided between the pressing wheel (44) and the third cross bar (43). Soil covering wheels (45) are provided on both sides at the rear of the suspension frame (4). The support plate (113) is provided on the first cross bar (41) and the second cross bar (42).

9. The mulching film laying device for agricultural planting according to claim 8, characterized in that: The power transmission device (5) includes a power worm (51) and an output gear shaft (52). The power worm (51) is meshed and connected to the output gear shaft (52). The power worm (51) and the output gear shaft (52) are provided within the gearbox.

10. The film laying device for agricultural planting according to claim 9, characterized in that: The power transmission device (5) further includes a first transmission rod (53), a second transmission rod (54), and a drive shaft sleeve (55). The second transmission rod (54) rotates on the transmission rod fixing seat (114). Transmission wheels two (541) are provided on both sides of the second transmission rod (54). Transmission columns (542) are arrayed on the second transmission rod (54). The transmission columns (542) are connected to the transmission wheel one (233) through a transmission belt. The first transmission rod (53) passes through the soil lifting device (1). The drive shaft sleeve (55) is provided between the soil lifting device (1) and the first transmission rod (53). The soil lifting chain (12) is provided on the drive shaft sleeve (55). A transmission wheel three (551) is provided on the drive shaft sleeve (55). The transmission wheels two (541) are connected to the transmission wheels three (551) on both sides through a transmission belt. The output gear shaft (52) is connected to the transmission wheel three (551) through a transmission belt.

Images