Membrane-breaking, seedling-pulling and soil-sealing device

Abstract

The utility model discloses a film-breaking, seedling-pulling and soil-sealing device which comprises a frame and a driving motor, the right front wheel is connected to the front cross beam through a synchronous sleeve, a connecting plate and a supporting plate are sequentially arranged on the left side of the synchronous sleeve, and 4-6 plowing moldboards are evenly distributed on the connecting plate; 4-6 soil moving barrels corresponding to the plowing moldboards are uniformly distributed on the supporting plate; an annular track limiting plate with a soil unloading groove in the top is further fixedly arranged on the front cross beam; a baffle inserting plate is arranged outside the left end of the outer side wall of the inner side wall, an L-shaped telescopic gear lever is inserted into the baffle inserting plate, the vertical part of the telescopic gear lever is sleeved with a compression spring, and the horizontal part of the telescopic gear lever is connected with the outer side wall of the track limiting plate through a rolling bearing; a soil receiving box is arranged on the front cross beam through a soil receiving box mounting frame; a film-breaking seedling-pulling soil-sealing mechanism is arranged on the inner side of the middle part of the front cross beam. The utility model has the advantages of film breaking, seedling digging and soil sealing operation, time saving, labor saving and high working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film breaking and soil sealing device for tobacco seedling. BACKGROUND

[0002] Mulching film is often used in the early stage of tobacco seedling cultivation, which can improve soil temperature, retain soil moisture, inhibit weed growth, promote early growth of tobacco, reduce nutrient loss, and reduce weed and pest damage. However, the root system of tobacco plants covered by mulching film is shallow, and the plants have poor drought resistance and tend to decline in the later growth stage. Therefore, the tobacco seedlings need to be released and the soil needs to be covered in time after a certain period of mulching film coverage, i.e. the film needs to be broken above the seedlings to release them, and then the soil needs to be covered around the roots. Generally, the seedlings are released 30-35 days after transplanting, i.e. during the rosette stage. Currently, when releasing the seedlings, the tobacco farmers often need to squat on both sides of the ridge ditch between the rows of tobacco plants, one person uses both hands to gather the tobacco leaves upwards and fix them, i.e. to gather the horizontally expanded tobacco leaves into a vertically upward state, and the other person breaks a hole of appropriate size in the mulching film below the seedlings, and then covers the soil in the ridge ditch between the rows of tobacco plants to cover the stem base of the seedlings, which is beneficial to the formation of a well-developed root system, irrigation, fertilization, and the creation of a good environment for the early growth of tobacco plants. However, since the operation is entirely manual, and the tobacco plants are low, the operation needs to be performed while squatting, and the planting area of tobacco is large, the labor intensity is high, and the operation efficiency is low. SUMMARY

[0003] The utility model aims to provide a film breaking and soil sealing device which saves time and labor, reduces the labor intensity of tobacco farmers, and improves the film breaking and soil sealing efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A film breaking and soil sealing device, comprising a vehicle frame composed of a front cross beam, a rear cross beam, a left side beam, and a right side beam, left and right front wheels are arranged on the left and right sides of the front cross beam, left and right rear wheels are arranged on the left and right sides of the rear cross beam, and a motor is arranged on the rear cross beam to drive the left and right rear wheels to rotate;

[0006] The right front wheel is connected to the front cross beam through a synchronous sleeve, a circular connecting plate is arranged on the synchronous sleeve to the left of the right front wheel, and 4-6 plowing blades are uniformly distributed on the left side wall circumference of the connecting plate;

[0007] A circular support plate is arranged on the synchronization sleeve on the left side of the connecting plate, and 4-6 earth carrying barrels corresponding to the plow blade are uniformly distributed on the outer circumference of the support plate; the earth carrying barrel comprises an outer side wall, a front side wall, a rear side wall, an inner side wall, a fixed end cover on the left end, and a movable end cover, the fixed end cover is located away from the support plate and is perpendicularly fixedly connected with the outer side wall, the front side wall and the rear side wall respectively, the inner end of the movable end cover is hingedly connected with the left end of the inner side wall through a hinge or the like, and the inner wall of the movable end cover and the inner wall of the inner side wall are connected through an elastic sheet; the outer side wall of the earth carrying barrel away from the support plate is parallel to the center line of the support plate, the front side wall and the rear side wall of the earth carrying barrel are perpendicular to the outer side wall respectively, and the included angle between the inner side wall of the earth carrying barrel close to the support plate and the fixed end cover is 60-80 degrees;

[0008] A circular track limiting plate is fixedly arranged on the front cross beam on the left side of the synchronization sleeve, and a soil unloading groove is arranged on the top of the track limiting plate; a baffle insertion plate is arranged on the left end of the outer wall of the inner side wall, an L-shaped telescopic baffle rod is inserted into the baffle insertion plate, a compression spring is sleeved on the vertical part of the telescopic baffle rod on the inner side of the baffle insertion plate, and the horizontal part of the telescopic baffle rod is connected with the outer wall of the track limiting plate through a rolling bearing; when the horizontal part of one of the telescopic baffle rods rolls into the soil unloading groove, the movable end cover of the corresponding earth carrying barrel is opened outward to be perpendicular to the fixed end cover or to form an included angle of 180 degrees with the inner side wall under the action of the elastic sheet;

[0009] A soil receiving box mounting rack is fixedly arranged on the front cross beam on the left side of the track limiting plate, and a soil receiving box is arranged on the upper end of the soil receiving box mounting rack;

[0010] A film breaking, seedling digging and soil sealing mechanism is arranged on the inner side of the middle part of the front cross beam, the film breaking, seedling digging and soil sealing mechanism comprises an outer cylinder, a sealing cover is arranged on the upper end of the outer cylinder, an inner barrel is arranged on the inner side of the outer cylinder, a falling soil channel is formed between the outer cylinder and the inner barrel, 8-20 circular falling soil holes or 4-8 circular arc falling soil holes are uniformly distributed in a circular ring on the sealing cover; a hydraulic cylinder is arranged on the middle outer side of the sealing cover, the lower end of the hydraulic cylinder penetrates through the sealing cover and is connected with the upper end of the inner barrel and can drive the inner barrel to move up and down; a negative pressure fan is arranged on the inner upper end of the inner barrel, 4-8 communicating air outlets are uniformly arranged on the inner upper end of the inner barrel and the sealing cover; a filter plate is arranged in the inner barrel below the negative pressure fan; and a cutting blade with a C-shaped or circular ring cross section is arranged on the lower end of the inner barrel.

[0011] In order to better achieve the purpose of the application, the above technical scheme can further include the following technical scheme: the membrane breaking and seedling digging and soil sealing mechanism is connected with the front cross beam through a height adjusting device;

[0012] In order to better achieve the purpose of the application, the above technical scheme can further include the following technical scheme: the height adjusting device includes an annular height adjusting sleeve located outside the outer cylinder, and 3-6 threadedly connected fastening bolts are uniformly arranged on the circumferential outer side of the sleeve, and the front end of the height adjusting sleeve is fixedly connected with the front cross beam.

[0013] In order to better achieve the purpose of the application, the above technical scheme can further include the following technical scheme: the outer cylinder lower end is provided with a reverse conical annular soil sealing guide ring.

[0014] In order to better achieve the purpose of the application, the above technical scheme can further include the following technical scheme: a soil falling funnel groove matched with the soil falling hole is arranged on the sealing cover above the soil falling hole.

[0015] In order to better achieve the purpose of the application, the above technical scheme can further include the following technical scheme: the cutting blade is a hot pressing blade connected with a wire and a power supply.

[0016] In summary, the advantages of the membrane breaking and seedling digging and soil sealing device are as follows: when the device is used and walks to the position of the membrane breaking and seedling digging and soil sealing mechanism below the tobacco seedlings, the hydraulic cylinder is started to drive the inner barrel and the cutting blade to stretch downward to cut the mulch around the tobacco seedlings, then the negative pressure fan is started to suck the cut mulch and tobacco seedling leaves into the inner barrel, then the mud in the soil receiving box is poured through the soil falling hole and the soil falling channel to complete the soil covering work on the stem base of the tobacco seedling, and one tobacco farmer can complete all the work without bending down, thereby saving time and effort and improving work efficiency; when the device is walking, the right front wheel can drive the plow board and the soil carrying barrel to continuously send mud into the soil receiving box above through the synchronous sleeve, so that the mud in the soil receiving box can be quickly used for soil covering operation on the stem base of the tobacco seedling through the soil falling funnel groove, the soil falling hole and the soil falling channel without bending down to dig the soil. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the overall structure of the embodiment of the utility model;

[0018] Figure 2 It is a sectional view of the overall structure of the embodiment of the utility model;

[0019] Figure 3 It is a sectional view of the overall structure of the embodiment of the utility model;

[0020] Figure 4The trajectory limiting plate structure schematic view in the utility model embodiment.

[0021] The drawing mark:

[0022] 1, right front wheel; 2, connecting plate; 3, ploughing plough; 4, synchronous sleeve; 5, outer side wall; 6, front side wall; 7, fixed end cover; 8, inner side wall; 9, elastic sheet; 10, movable end cover; 11, soil receiving box; 12, sealing cover; 13, hydraulic cylinder; 14, air outlet; 15, soil falling funnel groove; 16, soil falling hole; 17, front cross beam; 18, left front wheel; 19, fastening bolt; 20, height adjusting sleeve; 21, left rear wheel; 22, left side beam; 23, motor; 24, rear cross beam; 25, right rear wheel; 26, right side beam; 27, outer cylinder; 28, inner barrel; 29, negative pressure fan; 30, filter plate; 31, cutting blade; 32, soil sealing guide ring; 33, soil falling passage; 34, soil receiving box mounting frame; 35, trajectory limiting plate; 36, support plate; 37, baffle plug-in plate; 38, compression spring; 39, telescopic baffle rod; 40, rolling bearing; 41, soil unloading groove; 42, rear side wall. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiments will be described clearly and completely below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0024] Embodiment:

[0025] As Figures 1-4 shown, the utility model discloses a membrane breaking and seedling picking soil sealing device, comprising the frame that is composed of front cross beam 17, rear cross beam 24, left side beam 22 and right side beam 26, and the left and right sides of front cross beam 17 are provided with left front wheel 18 and right front wheel 1 respectively, and the left and right sides of rear cross beam 24 are provided with left rear wheel 21 and right rear wheel 25 respectively, and motor 23 that drives left rear wheel 21 and right rear wheel 25 to rotate is provided on rear cross beam 24.

[0026] Right front wheel 1 is connected to front cross beam 17 through synchronous sleeve 4, and circular connecting plate 2 is arranged on the synchronous sleeve 4 left side of right front wheel 1, and 4 ploughing ploughs 3 are evenly distributed on the left side wall circumference of connecting plate 2.

[0027] The circular support plate 36 is arranged on the synchronous sleeve 4 located on the left side of the connecting plate 2, and the outer circumference of the support plate 36 is uniformly distributed with four earth carrying barrels corresponding to the plow blade 3; the earth carrying barrel comprises an outer side wall 5, a front side wall 6, a rear side wall 42, and an inner side wall 8, and a fixed end cover 7 and a movable end cover 10 located at the left end; the fixed end cover 7 is located on the side away from the support plate 36 and is fixedly connected with the outer side wall 5, the front side wall 6, and the rear side wall 42, respectively; the inner side of the movable end cover 10 is connected with the left end of the inner side wall 8 through a hinge; the inner side wall of the movable end cover 10 and the inner side wall 8 are connected through an elastic sheet 9; the outer side wall 5 of the earth carrying barrel away from the support plate 36 is parallel to the center line of the support plate 36; the front side wall 6 and the rear side wall 42 of the earth carrying barrel are perpendicular to the outer side wall 5, respectively; the included angle between the inner side wall 8 of the earth carrying barrel close to the support plate 36 and the fixed end cover 7 is 75 degrees.

[0028] The circular track limiting plate 35 is fixedly arranged on the front cross beam 17 located on the left side of the synchronous sleeve 4, and the top of the track limiting plate 35 is provided with a soil unloading groove 41; the left end of the outer side wall of the inner side wall 8 is provided with a baffle insertion plate 37, the L-shaped telescopic baffle rod 39 is inserted into the baffle insertion plate 37, the vertical part of the telescopic baffle rod 39 located on the inner side of the baffle insertion plate 37 is sleeved with a compression spring 38, and the horizontal part of the telescopic baffle rod 39 is connected with the outer side wall of the track limiting plate 35 through a rolling bearing 40; when the horizontal part of one of the telescopic baffle rods 39 rolls into the soil unloading groove 41, the movable end cover 10 of the corresponding earth carrying barrel is opened outward to be perpendicular to the fixed end cover 7 or to form an included angle of 180 degrees with the inner side wall 8 under the action of the elastic sheet 9.

[0029] The soil receiving box mounting frame 34 is fixedly arranged on the front cross beam 17 located on the left side of the track limiting plate 35, and the upper end of the soil receiving box mounting frame 34 is provided with a soil receiving box 11.

[0030] The membrane breaking, seedling digging and soil sealing mechanism is arranged on the inner side of the middle part of the front cross beam 17, and comprises an outer cylinder 27, a sealing cover 12 arranged on the upper end of the outer cylinder 27, and an inner barrel 28 arranged on the inner side of the outer cylinder 27; a soil falling channel 33 is formed between the outer cylinder 27 and the inner barrel 28; 16 circular soil falling holes 16 are uniformly distributed on the circular sealing cover 12; a hydraulic cylinder 13 is arranged on the middle outer side of the sealing cover 12, and the lower end of the hydraulic cylinder 13 penetrates through the sealing cover 12 and is connected with the upper end of the inner barrel 28 and can drive the inner barrel 28 to move up and down; a negative pressure fan 29 is arranged on the inner barrel 28; six communication air outlets 14 are uniformly arranged on the upper end of the inner barrel 28 and the sealing cover 12; a filter plate 30 is arranged in the inner barrel 28 below the negative pressure fan 29; the lower end of the inner barrel 28 is provided with a cutting edge 31 with a C-shaped or circular cross section.

[0031] The membrane breaking, seedling pulling and soil sealing mechanism is connected with the front cross beam 17 through a height adjusting device;

[0032] The height adjusting device comprises an annular height adjusting sleeve 20 located outside the outer cylinder 27, and four threadedly connected fastening bolts 19 are uniformly arranged on the circumferential outside of the sleeve. The front end of the height adjusting sleeve 20 is fixedly connected with the front cross beam 17.

[0033] The outer cylinder 27 is provided with a reverse conical annular soil sealing guide ring 32 at the lower end.

[0034] The sealing cover 12 above the soil falling hole 16 is provided with a soil falling funnel groove 15 used in cooperation with the soil falling hole 16.

[0035] The cutting blade 31 is a hot ironing blade connected with a wire and a power source.

[0036] The right front wheel 1 is connected to the front cross beam 17 through a synchronous sleeve 4. A circular ring-shaped connecting plate 2 is arranged on the synchronous sleeve 4 located at the left side of the right front wheel 1. Four ploughing blades 3 are uniformly distributed on the left side wall of the connecting plate 2. A circular ring-shaped supporting plate 36 is arranged on the synchronous sleeve 4 located at the left side of the connecting plate 2. Four earth carrying buckets corresponding to the ploughing blades 3 are uniformly distributed on the outer circumferential side of the supporting plate 36. That is, through the synchronous sleeve, the right front wheel 1, the ploughing blades 3 and the earth carrying buckets can be synchronously rotated. When one of the ploughing blades 3 is inserted into the soil to turn up the soil, the turned up soil can fall into the corresponding earth carrying bucket.

[0037] The inner side end of the movable end cover 10 is connected with the left end of the inner side wall 8 through a hinge. The inner side wall of the movable end cover 10 and the inner side wall of the inner side wall 8 are connected through an elastic sheet 9. That is, when the outer side wall of the movable end cover 10 is not subjected to pressure, it can be rotated outwardly as the center axis of the hinge under the elastic action of the elastic sheet 9 and the gravity pressure of the soil loaded in the earth carrying bucket, so as to be opened, and the soil in the earth carrying bucket can flow out from the left end opening into the soil receiving box 11.

[0038] The included angle between the inner side wall 8 of the earth carrying bucket close to the supporting plate 36 and the fixed end cover 7 is 75 degrees. That is, when one of the earth carrying buckets runs to the highest end, the inner side wall 8 is in an inclined state with the right side being higher and the left side being lower. When the movable end cover 10 at the left end is opened, the soil in the earth carrying bucket can quickly flow out from the opening. When one of the earth carrying buckets runs to the lowest end, the inner side wall 8 is in an inclined state with the right side being lower and the left side being higher, so as to form an opening with a larger area and higher on the left and lower on the right, which can more easily and more easily admit the soil turned up by the ploughing blade 3 into the earth carrying bucket.

[0039] The circular track limiting plate 35 is fixedly arranged on the front cross beam 17 on the left side of the synchronization sleeve 4, and the top of the track limiting plate 35 is provided with a soil unloading groove 41; the outer side wall of the left end of the inner side wall 8 is externally provided with a baffle insertion plate 37, the L-shaped telescopic baffle rod 39 is inserted into the baffle insertion plate 37, the compression spring 38 is sleeved on the vertical part of the telescopic baffle rod 39 on the inner side of the baffle insertion plate 37, and the horizontal part of the telescopic baffle rod 39 is connected with the outer side wall of the track limiting plate 35 through the rolling bearing 40; when the horizontal part of one of the telescopic baffle rods 39 rolls into the soil unloading groove 41, the movable end cover 10 of the corresponding soil carrying bucket is opened outward to be perpendicular to the fixed end cover 7 or to form a 180-degree angle with the inner side wall 8 under the action of the elastic sheet 9; that is, when one of the soil carrying buckets rotates to the highest end, the horizontal part of the corresponding telescopic baffle rod 39 rolls into the lowest end inside the soil unloading groove 41, so that the top end of the telescopic baffle rod 39 moves downward to the lower stop point, so that the movable end cover 10 is quickly opened outward to be perpendicular to the fixed end cover 7 or to form a 180-degree angle with the inner side wall 8 under the elastic force of the elastic sheet 9 and the gravity pressure of the soil, so that the soil in the soil carrying bucket flows out from the left end opening and falls into the soil receiving box 11 below.

[0040] The outer cylinder 27 and the inner barrel 28 form a falling soil channel 33, the sealing cover 12 above the falling soil channel 33 is provided with 16 circular falling soil holes 16 uniformly distributed in a circular ring, which can make the soil in the soil receiving box 11 fall through the falling soil holes 16 and the falling soil channel 33 to cover the roots of tobacco seedlings; the sealing cover 12 above the falling soil holes 16 is provided with a falling soil hopper groove 15 used in cooperation with the falling soil holes 16, which can quickly pour the soil used for covering operation into the falling soil hopper groove 15, and then the soil falls through the falling soil holes 16 and the falling soil channel 33 to cover the roots of tobacco seedlings; the outer cylinder 27 is provided with a circular conical soil covering guide ring 32 at the lower end, which can better gather the falling soil to the stem base of the tobacco plant, and the covering effect is better. The diameter of the inner barrel is preferably 12-16 cm, and the diameter of the outer barrel is preferably 18-22 cm.

[0041] The middle outer side of the sealing cover 12 is provided with a hydraulic cylinder 13, the lower end of the hydraulic cylinder 13 penetrates through the sealing cover 12 and is connected with the upper end of the inner barrel 28 and can drive the inner barrel 28 to move up and down; the lower end of the inner barrel 28 is provided with a cutting edge 31 with a C-shaped or circular ring cross section; that is, the hydraulic cylinder 13 can drive the inner barrel 28 and the cutting edge 31 at the lower end to move downward, so as to cut the mulch film covering the tobacco seedlings.

[0042] The inner barrel 28 is internally provided with a negative pressure fan 29 at the upper end, and the upper end of the inner barrel 28 and the sealing cover 12 are uniformly provided with six communicating air outlets 14, that is, when the cutting blade 31 cuts the mulch above the tobacco seedlings, the negative pressure fan is started to suck the cut mulch and the leaves of the tobacco seedlings into the inner barrel 28, and after the leaves of the tobacco seedlings are sucked into the inner barrel 28, the soil can be dropped through the soil falling hole 16 and the soil falling channel 33 to cover the roots of the tobacco seedlings, and the soil will not be applied to the leaves; the inner barrel 28 below the negative pressure fan 29 is internally provided with a filter plate 30 to prevent the sucked mulch from being rolled into the lower end of the negative pressure fan 29. The negative pressure fan preferably uses a direct current of 24V, and the air volume is preferably 1200-2200 cubic meters per hour.

[0043] The film breaking, seedling extracting and soil covering mechanism is connected with the front cross beam 17 through a height adjusting device, the height adjusting device includes an annular height adjusting sleeve 20 located outside the outer cylinder 27, four threaded fastening bolts 19 are uniformly arranged on the circumferential outer side of the sleeve, and the front end of the height adjusting sleeve 20 is fixedly connected with the front cross beam 17. The height of the film breaking, seedling extracting and soil covering mechanism can be adjusted through the fastening bolts 19, so that the film breaking, seedling extracting and soil covering mechanism can adapt to more tobacco seedling ridges with different heights.

[0044] The cutting blade 31 is a hot ironing blade connected with a wire and a power supply, that is, the cutting blade 31 can be further provided as a hot ironing blade, that is, the cutting blade 31 generates heat when current flows through, so as to hot iron the mulch, so that the mulch can be better and faster separated.

Claims

1. A film breaking, seedling extracting and soil sealing device, characterized in that, The utility model provides a kind of agricultural tractor, including the frame consisting of front crossbeam, rear crossbeam, left side beam and right side beam, the left and right sides of front crossbeam are respectively provided with left front wheel and right front wheel, the left and right sides of rear crossbeam are respectively provided with left rear wheel and right rear wheel, motor is provided on the rear crossbeam, and the left rear wheel and the right rear wheel are driven to rotate; The right front wheel is connected to the front crossbeam through a synchronizing sleeve, a circular connecting plate is provided on the synchronizing sleeve to the left of the right front wheel, and 4-6 plow blades are evenly distributed on the left side wall of the connecting plate in a circular manner. A circular support plate is provided on the synchronizing sleeve to the left of the connecting plate, and 4-6 earth-moving buckets corresponding to the plow blades are evenly distributed on the outer circumference of the support plate. The earth-moving bucket includes an outer side wall, a front side wall, a rear side wall, and an inner side wall, as well as a fixed end cover and a movable end cover located at the left end. The fixed end cover is located away from the support plate and is perpendicularly fixedly connected to the outer side wall, the front side wall, and the rear side wall, respectively. The inner end of the movable end cover is hingedly connected to the left end of the inner side wall, and the inner side wall of the movable end cover and the inner side wall of the inner side wall are connected by an elastic sheet. The outer side wall of the earth-moving bucket away from the support plate is parallel to the center line of the support plate, and the front side wall and the rear side wall of the earth-moving bucket are perpendicular to the outer side wall, respectively. The included angle between the inner side wall of the earth-moving bucket near the support plate and the fixed end cover is 60-80 degrees. A circular trajectory limiting plate is fixedly provided on the front crossbeam to the left of the synchronizing sleeve, and a soil unloading groove is provided on the top of the trajectory limiting plate. A baffle insertion plate is provided on the left end of the outer side wall of the inner side wall, an L-shaped telescopic baffle rod is inserted into the baffle insertion plate, a compression spring is sleeved on the vertical part of the telescopic baffle rod to the inside of the baffle insertion plate, and the horizontal part of the telescopic baffle rod is connected to the outer side wall of the trajectory limiting plate through a rolling bearing. When the horizontal part of one of the telescopic baffle rods rolls into the soil unloading groove, the movable end cover of the corresponding earth-moving bucket is opened outward to be perpendicular to the fixed end cover or to form a 180-degree included angle with the inner side wall under the action of the elastic sheet. An earth-collecting box mounting rack is fixedly provided on the front crossbeam to the left of the trajectory limiting plate, and an earth-collecting box is provided on the upper end of the earth-collecting box mounting rack. The middle part of the front cross beam is provided with a film breaking and seedling digging and soil sealing mechanism, which comprises an outer cylinder, the upper end of the outer cylinder is provided with a sealing cover, the inner side of the outer cylinder is provided with an inner barrel, a soil falling channel is formed between the outer cylinder and the inner barrel, 8-20 circular soil falling holes or 4-8 circular arc soil falling holes are uniformly distributed on the sealing cover above the soil falling channel; the middle outer side of the sealing cover is provided with a hydraulic cylinder, the lower end of the hydraulic cylinder penetrates the sealing cover and is connected with the upper end of the inner barrel and can drive the inner barrel to move up and down; the inner barrel is provided with a negative pressure fan at the upper end, 4-8 communicating air outlets are uniformly arranged on the upper end of the inner barrel and the sealing cover; the inner barrel is provided with a filter plate below the negative pressure fan; the lower end of the inner barrel is provided with a cutting blade with a C-shaped or circular ring cross section.

2. The film breaking, seedling extracting and soil covering device according to claim 1, wherein The film breaking and seedling digging and soil sealing mechanism is connected with the front cross beam through a height adjusting device.

3. The film breaking, seedling extracting and soil covering device according to claim 2, wherein The height adjusting device comprises an annular height adjusting sleeve outside the outer cylinder, the outer side of the sleeve is uniformly provided with 3-6 threadedly connected fastening bolts, and the front end of the height adjusting sleeve is fixedly connected with the front cross beam.

4. The film breaking, seedling extracting and soil covering device according to claim 3, wherein The lower end of the outer cylinder is provided with a circular conical ring soil sealing guide ring.

5. The film breaking, seedling extracting and soil covering device according to claim 3, wherein The sealing cover above the soil falling hole is provided with a soil falling funnel groove matched with the soil falling hole.

6. The film breaking, seedling extracting and soil covering device according to claim 4, wherein The sealing cover above the soil falling hole is provided with a soil falling funnel groove matched with the soil falling hole.

7. The film breaking, seedling extracting and soil covering device according to claim 3, wherein The cutting blade is a hot ironing blade connected with a wire and a power supply.

8. The film breaking, seedling extracting and soil covering device according to claim 4, wherein The cutting blade is a hot ironing blade connected with a wire and a power supply.

9. The film breaking, seedling extracting and soil covering device according to claim 5, wherein The cutting blade is a hot ironing blade connected with a wire and a power supply.

10. The film breaking, seedling extracting and soil covering device according to claim 6, wherein The cutting blade is a hot ironing blade connected with a wire and a power supply.

Images