A device for restoring vegetation of desertified grassland

Abstract

The present invention relates to a desertified grassland vegetation restoration device, belonging to the technical field of desertified land environment restoration. It comprises a frame, a furrowing assembly and a sowing assembly installed on the frame, and rollers arranged on both sides of the frame; the furrowing assembly comprises a first roller rotatably supported on the frame, and a plurality of slotted parts uniformly distributed on the outer peripheral wall of the first roller along the circumferential direction, the slotted parts comprising a fixed shaft whose two ends are respectively supported on the outer wall of the first roller by fixed rods, a sliding sleeve slidably connected to the fixed shaft, and an auger blade fixedly connected to the sliding sleeve; a guide groove extending in a spiral shape around its axis is provided on the fixed shaft, and a guide block slidably connected to the guide groove is fixedly connected to the inner wall of the sliding sleeve, and a plurality of fixed shafts are arranged in a zigzag shape on the outer wall of the first roller and connected end to end, and the angle between two adjacent fixed shafts is 60°. Through the present invention, the problems of high labor intensity and low efficiency in the process of desertified vegetation restoration in the prior art are solved.

Description

Technical Field

[0001] The invention relates to a device for restoring vegetation of desertified grasslands, belonging to the technical field of restoration of desertified land environment. Background Art

[0002] Desertified land refers to degraded land characterized by sand as its primary surface material, formed under various climatic conditions and due to various factors. This includes both already desertified land and land with a clear trend of desertification. Currently, normal vegetation is unsuitable for large-scale cultivation on abnormally desertified land. Due to poor climatic conditions and insufficient water supply, survival rates are low, making it impossible to improve and utilize desertified land in a short period of time.

[0003] In response to the above technical problems, a Chinese patent with announcement number CN110859066B discloses a method for restoring vegetation on desertified land, the technical key points of which are: step a, digging circular pits arranged horizontally and vertically on the desertified land to be treated, with four adjacent circular pits as a planting unit; step b, filling the circular pits with mixed matrix sand; step c, making plant seed protection bags; step d, burying most of the plant seed protection bags in the mixed matrix sand in the above circular pits, and then laying a layer of local sand on the surface of the above circular pits, flush with the upper end surface of the above protection bags; step e, every four planting units form a square, and a sandbag retaining wall is built outside the grid; step f, opening a cross groove in the grid, filling the grooves with the above mixed matrix sand, and then evenly spreading drought-tolerant herb seeds in the grooves, and finally laying a layer of local sand on the surface of the grooves.

[0004] In the above scheme, trenches are dug to collect precipitation, so that the water is not easy to evaporate. However, trenches, round pits and seeds need to be dug separately, and the planting density and excavation density are relatively large. Manual excavation alone is labor-intensive and has low planting efficiency.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a desertified grassland vegetation restoration device, which solves the problems of high labor intensity and low efficiency in the desertified grassland vegetation restoration process in the prior art.

[0007] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0008] A desertified grassland vegetation restoration device comprises a frame, a furrowing assembly and a sowing assembly mounted on the frame, and rollers arranged on both sides of the frame;

[0009] The groove assembly includes a first roller rotatably supported on the frame, a plurality of groove members uniformly distributed along the circumferential direction on the outer peripheral wall of the first roller, and the groove members include a fixed shaft with both ends supported on the outer wall of the first roller through fixed rods, a sliding sleeve slidably connected to the fixed shaft, and an auger blade fixedly connected to the sliding sleeve;

[0010] The fixed shaft is provided with a guide groove extending spirally around its axis, the inner wall of the sliding sleeve is fixedly connected to a guide block slidably connected to the guide groove, a plurality of the fixed shafts are arranged in a zigzag shape on the outer wall of the first roller and are connected end to end, and the angle between two adjacent fixed shafts is 60°, and the first roller is provided with a driving mechanism for driving the sliding sleeve to reciprocate on its fixed shaft.

[0011] The present invention is further configured as follows: the driving mechanism includes a first rotating disk coaxially disposed within the first roller, a driving ring fixedly connected to the first rotating disk, first driving grooves formed on the inner and outer walls of the driving ring, a first driving shaft fixedly connected to the axis of the first rotating disk and extending to the outside of the first roller, a worm wheel fixedly connected to the first driving shaft, a worm rotatably supported on the outer side of the frame via a shaft seat and engaged with the worm wheel, and a motor connected to the worm wheel;

[0012] The circumference of the first roller is provided with movable grooves extending along the fixed shaft at positions corresponding to the fixed shaft, the sliding sleeve is rotatably connected to a rotating ring, the top of the rotating ring is fixedly connected to a connecting rod that passes through the movable groove and extends to the inside of the first roller, the connecting rod extends to one side of the driving ring and is fixedly connected to ear plates located on the inner and outer sides of the driving ring respectively, the ear plates are fixedly connected to a first guide bearing that extends into the first driving groove, and the first driving groove extends in a wavy shape in the circumferential direction of the driving ring.

[0013] The present invention is further configured as follows: the auger blades include a first blade and a second blade, the first blade and the second blade are respectively located on both sides of the rotating ring, and the first blade and the second blade have opposite rotation directions.

[0014] The present invention is further configured as follows: a storage box for storing mixed fertilizer is fixedly connected to the inner wall of the first drum relative to the inner wall of the first turntable, the side wall of the first drum is provided with a feeding port connected to the storage box, the feeding port is provided with a sealing cover, the outer wall of the storage box is connected with a plurality of connecting pipes corresponding to each of the connecting rods, the connecting rods are hollow, a hose is connected between the connecting pipe and the top end of the connecting rod, and a plurality of discharge holes are provided at the junction of the bottom end of the connecting rod and the rotating ring.

[0015] The present invention is further configured as follows: a feed pipe is slidably inserted into one end of the connecting pipe close to the interior of the storage box, a return spring is provided between the feed pipe and the connecting pipe, the feed pipe is located in the storage box, and a plurality of discharge ports are provided on the peripheral wall of the feed pipe, a first magnetic block is fixedly connected to the top of the feed pipe, the first roller is rotatably connected to an swing shaft at one end relative to the first drive shaft, the end of the swing shaft located outside the first roller is fixedly connected to a counterweight block, and the end of the swing shaft located inside the first roller is fixedly connected to a second magnetic block, when the first magnetic block is adsorbed on the second magnetic block, the feed pipe extends out of the connecting pipe and opens the discharge port, and in the absence of external force, the feed pipe is retracted into the interior of the connecting pipe and closes the discharge port.

[0016] The present invention is further configured as follows: the sowing assembly includes a second roller rotatably supported on the inner side of the frame, a second drive shaft passing through one end of the second roller and coaxially arranged with the second roller, a second turntable and a third turntable fixedly connected to one end of the second drive shaft located inside the second roller, and sowing members uniformly distributed on the second roller along the circumferential direction, wherein the second drive shaft is fixedly connected to the frame;

[0017] The second and third rotating disks are respectively located at two ends of the second drum, the arc length spacing of the sowing pieces is the same as the arc length spacing of the slotted pieces, and the plurality of sowing pieces are divided into two groups and connected to the second and third rotating disks respectively, and the sowing pieces connected to the second rotating disk and the sowing pieces connected to the third rotating disk are alternately arranged in the circumferential direction of the second drum, and the plurality of sowing pieces correspond one by one to the crests or troughs of the zigzag grooves opened by the plurality of slotted pieces in the travel route;

[0018] The sowing member includes a telescopic tube that is inserted into the circumferential wall of the second roller for radial sliding along the second roller, a closed tube that is fixedly connected to the circumferential wall of the second roller and sleeved on the telescopic tube, a tapered tube that is fixedly connected to the bottom end of the telescopic tube, and a pair of connecting plates that are fixedly connected to the top of the telescopic tube. Both end surfaces of the second turntable and the third turntable are provided with a second drive groove along their circumference. The second drive groove extends in an annular shape, and the second drive groove is provided with a lower material portion that protrudes in a direction away from the axis and an upper material portion that protrudes in a direction close to the axis. The lower material portion is located directly below the axis of the second turntable or the third turntable, and the upper material portion is adjacent to the lower material portion. The connecting plates are fixedly connected to a second guide bearing that is slidably connected to the second drive groove. A sowing opening is provided on the circumferential wall of the telescopic tube. When the telescopic tube passes through the lower material portion, the sowing opening is closed by the closed tube. When the telescopic tube passes through the upper material portion, the sowing opening is located inside the second roller.

[0019] The present invention is further configured to include a sand retaining belt, wherein a plurality of the sand retaining belts cooperate to form a hexagonal grid structure.

[0020] The present invention is further configured as follows: the sand retaining belt extends in a trapezoidal wave shape, the wave crests or wave troughs between two adjacent sand retaining belts correspond to each other and abut against each other, and the abutting parts are all provided with connecting pieces;

[0021] The first and second half ring plates are respectively provided at the crests and troughs thereof, protruding outward. The first half ring plate is provided with first grooves on both sides of the top, and the second half ring plate is provided with second grooves on both sides of the bottom. The adjacent corresponding first and second half ring plates are plugged into each other through the first and second grooves to form positioning holes.

[0022] The connecting piece includes an anchor rod slidably inserted into the positioning hole and a limiting block fixedly connected to the top end of the anchor rod.

[0023] The present invention is further configured as follows: a plurality of ventilation holes are provided on the sand retaining belt.

[0024] The beneficial effects of the present invention are:

[0025] 1. By setting a furrowing assembly and a sowing assembly, and arranging the several slotted parts in the opening assembly at two adjacent angles of 60 degrees, during the rotation of the first roller, the motor is started, so that the motor drives the driving ring to rotate through the worm gear, and under the action of the first driving groove, the connecting rod drives the sliding sleeve to reciprocate along the fixed axis. During the reciprocating movement of the sliding sleeve, the auger blade is rotated and moved through the cooperation of the guide groove and the guide block, so that the soil is dug along the fixed axis and rotary tilled. In the process of rotation of the first roller, under the action of the counterweight block, the second magnetic block is always located below the swing axis. When one of the feed pipes rotates to below the second magnetic block, the first magnetic block located at the top of the feed pipe is attracted by the second magnetic block, so that the feed pipe rises and the discharge port is opened. The mixed fertilizer in the storage box falls into the groove on the ground through the discharge port, the connecting pipe, the hose and the discharge hole, and is evenly mixed with the sand by the auger blade, thereby completing the furrowing process of the land;

[0026] 2. After the first roller has opened the grooves, the second roller passes by. The sowing elements on the second roller correspond one by one and pass through the crests or troughs formed by the zigzag pattern. As the second roller rotates relative to the second and third rotating disks, when the telescopic tube passes through the feeding portion, the sowing port is located inside the second roller. The plant seeds stored in the second roller enter the telescopic tube through the sowing port. When the telescopic tube passes through the discharging portion, the sowing port is closed by the closing tube, and the tapered tube at the end of the telescopic tube is inserted into the soil, implanting the seeds in the telescopic tube into the soil, thus completing the sowing process.

[0027] 3. Through the cooperation of the furrowing component and the sowing component, a diamond-shaped network of trenches can be formed in the situation of multi-ridge parallel cultivation, and two columns of plants are planted in each diamond-shaped unit. After being mixed with the substrate fertilizer, the diamond-shaped trenches greatly increase the anti-wind and sand mobility and improve the water storage capacity of the land;

[0028] 4. Set up sand barriers to further enhance the wind and sand resistance of plants and land. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a cross-sectional view of the trenching component part of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the auger blade part in the present invention.

[0032] Figure 4 It is a schematic structural diagram of the driving ring part of the present invention.

[0033] Figure 5 yes Figure 2 A partial enlarged view of part A.

[0034] Figure 6 It is a cross-sectional view of the sowing component part of the present invention.

[0035] Figure 7 yes Figure 6 A partial enlarged view of part B.

[0036] Figure 8 It is a structural schematic diagram of the sand retaining belt part in the present invention.

[0037] In the figure: 1. frame; 2. furrowing assembly; 3. sowing assembly; 4. roller; 5. U-shaped frame; 6. pushing handle; 7. first roller; 8. slotting member; 9. fixed shaft; 10. sliding sleeve; 11. first blade; 12. second blade; 13. guide groove; 14. guide block; 15. driving mechanism; 16. first turntable; 17. driving ring; 18. first driving groove; 19. first driving shaft; 20. worm gear; 21. worm; 22. motor; 23. moving groove; 24. rotating ring; 25. connecting rod; 26. ear plate; 27. first guide bearing; 28. storage box; 29. ​​feeding port; 30. sealing cover; 31. connecting pipe; 32. hose; 33. unloading Hole; 34. Feed pipe; 35. Return spring; 36. Discharge port; 37. First magnetic block; 38. Swing shaft; 39. Counterweight; 40. Second magnetic block; 41. Second roller; 42. Second drive shaft; 43. Second turntable; 44. Third turntable; 45. Sowing piece; 46. Telescopic tube; 47. Closing tube; 48. Conical tube; 49. Connecting plate; 50. Second drive groove; 51. Feeding part; 52. Discharge part; 53. Second guide bearing; 54. Sowing port; 55. Sand retaining belt; 56. Ventilation hole; 57. First semi-ring plate; 58. Second semi-ring plate; 59. First slot; 60. Second slot; 61. Positioning hole; 62. Anchor rod; 63. Limit block. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to specific illustrations.

[0039] like Figures 1-8 As shown, a desertified grassland vegetation restoration device includes a frame 1, a trenching assembly 2 and a sowing assembly 3 installed on the frame 1, and rollers 4 arranged on both sides of the frame 1, wherein the frame 1 includes a horizontal U-shaped frame 5, a pushing handle 6 arranged on the U-shaped frame 5, the opening assembly is located at the open end of the U-shaped frame 5, the sowing assembly 3 is located on the inner side of the U-shaped frame 5, and the pushing handle 6 is fixedly connected to one end of the U-shaped frame 5 opposite to the trenching assembly 2.

[0040] The groove assembly 2 includes a first roller 7 rotatably supported on the frame 1, a plurality of grooved parts 8 uniformly distributed along the circumferential direction on the outer wall of the first roller 7, the grooved parts 8 include a fixed shaft 9 supported on the outer wall of the first roller 7 by fixed rods at both ends, a sliding sleeve 10 slidingly connected to the fixed shaft 9, and an auger blade fixedly connected to the sliding sleeve 10, wherein the auger blade includes a first blade 11 and a second blade 12, and the first blade 11 and the second blade 12 rotate in opposite directions.

[0041] A guide groove 13 extending spirally around its axis is provided on the fixed shaft 9. A guide block 14 slidably connected to the guide groove 13 is fixedly connected to the inner wall of the sliding sleeve 10. Several fixed shafts 9 are arranged in a zigzag shape on the outer wall of the first roller 7 and are connected end to end. The angle between two adjacent fixed shafts 9 is 60°. Through such an arrangement, the grooves opened by the ditching assembly 2 extend in a zigzag shape, and the grooves of adjacent ridges cooperate to form a diamond-shaped groove.

[0042] The first roller 7 is provided with a driving mechanism 15 for driving the sliding sleeve 10 to reciprocate on its fixed shaft 9. The driving mechanism 15 includes a first turntable 16 that is coaxial with the first roller 7, a driving ring 17 fixedly connected to the first turntable 16, a first driving groove 18 opened on the inner wall and outer wall of the driving ring 17, a first driving shaft 19 fixedly connected to the axis of the first turntable 16 and extending to the outside of the first roller 7, a worm gear 20 fixedly connected to the first driving shaft 19, a worm 21 that is rotatably supported on the outside of the U-shaped frame 5 through a shaft seat and meshes with the worm gear 20, and a motor 22 connected to the worm gear 21.

[0043] The first roller 7 is provided with movable grooves 23 extending along the fixed shaft 9 at locations corresponding to the fixed shaft 9. A rotating ring 24 is rotatably connected to the end of the sliding sleeve 10. A rotating ring 24 is located at each end of the sliding sleeve 10 and is fixedly connected to the sidewall of a connecting rod 25. The rotating ring 24 is located between the first blade 11 and the second blade 12. A connecting rod 25 is fixedly connected to the top of the rotating ring 24, passing through the movable groove 23 and extending into the interior of the first roller 7. The connecting rod 25 extends to one side of the drive ring 17 and is fixedly connected to lugs 26 located on the inside and outside of the drive ring 17. The lugs 26 are fixedly connected to first guide bearings 27 that extend into first drive grooves 18. The first drive grooves 18 extend in a wavy pattern around the circumference of the drive ring 17. The cooperation between the first guide bearings 27 and the first drive grooves 18 drives the connecting rod 25 to reciprocate along the fixed shaft 9.

[0044] To facilitate the addition of mixed fertilizer into the grooves, a storage box 28 for storing mixed fertilizer is fixedly attached to the inner wall of the first drum 7 relative to the inner wall of the first turntable 16. The mixed fertilizer includes sawdust, trace element fertilizer, soil moisture retainer, and soil binder. A feeding port 29 is provided on the side wall of the first drum 7, connected to the storage box 28. The feeding port 29 is equipped with a sealing cover 30. The outer wall of the storage box 28 is connected to a number of connecting pipes 31, one corresponding to each connecting rod 25. The connecting rods 25 are hollow, and a hose 32 is connected between the connecting pipes 31 and the top of the connecting rods 25. Several discharge holes 33 are provided at the bottom of the connecting rods 25 where they meet the rotating ring 24.

[0045] A feed pipe 34 is slidably inserted into the end of the connecting pipe 31 close to the inside of the storage box 28, and a return spring 35 is provided between the feed pipe 34 and the connecting pipe 31. The return spring 35 allows the feed pipe 34 to have a tendency to retract into the connecting pipe 31. The feed pipe 34 is located in the storage box 28, and a number of discharge ports 36 are opened on the peripheral wall of the feed pipe 34. A first magnetic block 37 is fixedly connected to the top of the feed pipe 34, and a swing shaft 38 is rotatably connected to one end of the first roller 7 relative to the first drive shaft 19. The end of the swing shaft 38 located outside the first roller 7 is fixedly connected to a counterweight block 39, and the end of the swing shaft 38 located inside the first roller 7 is fixedly connected to a second magnetic block 40. When the first magnetic block 37 is adsorbed on the second magnetic block 40, the feed pipe 34 extends out of the connecting pipe 31 and opens the discharge port 36. When there is no external force, the feed pipe 34 is retracted into the inside of the connecting pipe 31 and the discharge port 36 is closed.

[0046] Under the action of the counterweight block 39, the second magnetic block 40 is always located below the swing shaft 38. When one of the feed pipes 34 rotates to below the second magnetic block 40, the first magnetic block 37 located at the top of the feed pipe 34 is adsorbed by the second magnetic block 40, causing the feed pipe 34 to rise and the discharge port 36 to open. The mixed fertilizer in the storage box 28 falls into the groove on the ground through the discharge port 36, the connecting pipe 31, the hose 32 and the discharge hole 33, and is evenly mixed with the sand through the auger blades.

[0047] The sowing assembly 3 includes a second roller 41 rotatably supported on the inner side of the frame 1, a second drive shaft 42 passing through one end of the second roller 41 and coaxially arranged with the second roller 41, a second turntable 43 and a third turntable 44 fixedly connected to one end of the second drive shaft 42 located in the second roller 41, and sowing pieces 45 evenly distributed on the second roller 41 along the circumferential direction. The second drive shaft 42 is fixedly connected to the frame 1.

[0048] The second turntable 43 and the third turntable 44 are respectively located at the two ends of the second roller 41, and the arc length spacing of the sowing pieces 45 is the same as the arc length spacing of the slotting pieces 8, and several sowing pieces 45 are divided into two groups and are respectively connected to the second turntable 43 and the third turntable 44, and the sowing pieces 45 connected to the second turntable 43 and the sowing pieces 45 connected to the third turntable 44 are alternately arranged in the circumferential direction of the second roller 41, and the several sowing pieces 45 correspond one by one to the peaks or troughs of the zigzag grooves opened by the several slotting pieces 8 on the travel route.

[0049] The sowing member 45 includes a telescopic tube 46 that is inserted into the peripheral wall of the second roller 41 and slides radially along the second roller 41, a closed tube 47 that is fixedly connected to the peripheral wall of the second roller 41 and sleeved on the telescopic tube 46, a tapered tube 48 that is fixedly connected to the bottom end of the telescopic tube 46, and a pair of connecting plates 49 that are fixedly connected to the top of the telescopic tube 46. The second drive groove 50 is formed along its circumferential direction on both end surfaces of the second turntable 43 and the third turntable 44. The second drive groove 50 extends in an annular shape and is provided with a protrusion facing away from the axis. The unloading portion 52 and the loading portion 51 protruding toward the axial direction, the unloading portion 52 is located directly below the axis of the second turntable 43 or the third turntable 44, the loading portion 51 is adjacent to the unloading portion 52, and the connecting plate 49 is fixedly connected to a second guide bearing 53 that is slidably connected to the second driving groove 50. A sowing port 54 is provided on the peripheral wall of the telescopic tube 46. When the telescopic tube 46 passes through the unloading portion 52, the sowing port 54 is closed by the closing tube 47. When the telescopic tube 46 passes through the loading portion 51, the sowing port 54 is located inside the second roller 41.

[0050] After the first roller 7 has opened the groove, the second roller 41 passes by, and the sowing parts 45 on the second roller 41 correspond one by one and pass through the crests or troughs formed by the zigzag shape. Since the second roller 41 rotates relative to the second turntable 43 and the third turntable 44, when the telescopic tube 46 passes through the feeding part 51, the sowing port 54 is located inside the second roller 41, and the plant seeds stored in the second roller 41 enter the telescopic tube 46 through the sowing port 54. When the telescopic tube 46 passes through the discharge part 52, the sowing port 54 is closed by the closing tube 47, and the tapered tube 48 at the end of the telescopic tube 46 is inserted into the soil.

[0051] Through the cooperation of the furrowing component 2 and the sowing component 3, a diamond-shaped network of grooves can be formed under the situation of multi-ridge parallel cultivation, and two columns of plants are planted in each diamond unit. After being mixed with the substrate fertilizer, the diamond-shaped grooves greatly increase the wind and sand resistance and fluidity, and improve the water storage capacity of the land.

[0052] In order to further increase the resistance to sand mobility, a sand retaining belt 55 is provided in the groove part. The sand retaining belt 55 extends in a trapezoidal wave shape. Several sand retaining belts 55 cooperate to form a hexagonal grid structure, and a plurality of ventilation holes 56 are provided on the sand retaining belt 55.

[0053] The crests or troughs between two adjacent sand retaining belts 55 correspond to each other and abut against each other. The crests and troughs are respectively provided with a first semi-annular plate 57 and a second semi-annular plate 58 protruding outward. The first semi-annular plate 57 has first grooves 59 on both sides of the top, and the second semi-annular plate 58 has second grooves 60 on both sides of the bottom. The adjacent corresponding first semi-annular plates 57 and second semi-annular plates 58 are plugged into each other through the first grooves 59 and the second grooves 60 to form positioning holes 61. Connectors are provided at the abutment points between the two adjacent sand retaining belts 55. The connectors include an anchor rod 62 that is slidably plugged into the positioning hole 61 and a limit block 63 fixedly connected to the top of the anchor rod 62.

[0054] The implementation principle of the present invention is:

[0055] During the rotation of the first roller 7, the motor 22 is started, and the motor 22 drives the drive ring 17 to rotate through the worm gear 20 and the worm 21. Under the action of the first drive groove 18, the connecting rod 25 drives the sliding sleeve 10 to reciprocate along the fixed shaft 9. During the reciprocating movement of the sliding sleeve 10, the auger blades rotate and move through the cooperation of the guide groove 13 and the guide block 14, so that the soil is dug along the fixed shaft 9 and rotary tilled. In the rotation of the first roller 7, under the action of the counterweight block 39, the soil is rotated and tilled. In operation, the second magnetic block 40 is always located below the swing shaft 38. When one of the feed pipes 34 rotates to below the second magnetic block 40, the first magnetic block 37 located at the top of the feed pipe 34 is attracted by the second magnetic block 40, causing the feed pipe 34 to rise, opening the discharge port 36. The mixed fertilizer in the storage box 28 falls into the groove on the ground through the discharge port 36, the connecting pipe 31, the hose 32 and the discharge hole 33, and is evenly mixed with the sand and soil by the auger blades, thereby completing the trenching process of the land.

[0056] After the first roller 7 has opened the groove, the second roller 41 passes by, and the sowing parts 45 on the second roller 41 correspond one by one and pass through the crests or troughs formed by the zigzag shape. Since the second roller 41 rotates relative to the second turntable 43 and the third turntable 44, when the telescopic tube 46 passes through the feeding part 51, the sowing port 54 is located inside the second roller 41, and the plant seeds stored in the second roller 41 enter the telescopic tube 46 through the sowing port 54. When the telescopic tube 46 passes through the discharge part 52, the sowing port 54 is closed by the closing tube 47, and the tapered tube 48 at the end of the telescopic tube 46 is inserted into the ground, and the seeds in the telescopic tube 46 are implanted into the ground, thereby completing the sowing process on the ground.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for restoring vegetation on desertified grassland, characterized in that: It comprises a frame (1), a furrowing assembly (2) and a sowing assembly (3) mounted on the frame (1), and rollers (4) arranged on both sides of the frame (1); The groove opening assembly (2) comprises a first roller (7) rotatably supported on the frame (1), a plurality of grooved members (8) uniformly distributed on the outer peripheral wall of the first roller (7) along the circumferential direction, the grooved member (8) comprising a fixed shaft (9) whose two ends are respectively supported on the outer wall of the first roller (7) through fixed rods, a sliding sleeve (10) slidably connected to the fixed shaft (9), and an auger blade fixedly connected to the sliding sleeve (10); The fixed shaft (9) is provided with a guide groove (13) extending in a spiral shape around its axis, the inner wall of the sliding sleeve (10) is fixedly connected with a guide block (14) slidably connected in the guide groove (13), a plurality of the fixed shafts (9) are arranged in a zigzag shape on the outer wall of the first roller (7) and connected end to end, and the angle between two adjacent fixed shafts (9) is 60°, and the first roller (7) is provided with a driving mechanism (15) for driving the sliding sleeve (10) to reciprocate on its fixed shaft (9); The sowing assembly (3) comprises a second roller (41) rotatably supported on the inner side of the frame (1), a second drive shaft (42) passing through one end of the second roller (41) and coaxially arranged with the second roller (41), a second turntable (43) and a third turntable (44) fixedly connected to one end of the second drive shaft (42) located inside the second roller (41), and sowing pieces (45) uniformly distributed on the second roller (41) along the circumferential direction, wherein the second drive shaft (42) is fixedly connected to the frame (1); The second rotating disk (43) and the third rotating disk (44) are respectively located at two ends of the second roller (41); the arc length spacing of the sowing pieces (45) is the same as the arc length spacing of the slotting pieces (8); and the plurality of sowing pieces (45) are divided into two groups, which are respectively connected to the second rotating disk (43) and the third rotating disk (44); and the sowing pieces (45) connected to the second rotating disk (43) and the sowing pieces (45) connected to the third rotating disk (44) are alternately arranged in the circumferential direction of the second roller (41); and the plurality of sowing pieces (45) correspond one by one to the crests or troughs of the zigzag grooves opened by the plurality of slotting pieces (8) on the travel route.

2. The device for restoring vegetation of desertified grassland according to claim 1, characterized in that: The driving mechanism (15) comprises a first rotating disk (16) coaxially disposed inside the first roller (7), a driving ring (17) fixedly connected to the first rotating disk (16), a first driving groove (18) provided on the inner wall and the outer wall of the driving ring (17), a first driving shaft (19) fixedly connected to the axis of the first rotating disk (16) and extending to the outside of the first roller (7), a worm wheel (20) fixedly connected to the first driving shaft (19), a worm (21) rotatably supported on the outside of the frame (1) through an axle seat and meshing with the worm wheel (20), and a motor (22) connected to the worm wheel (21); A movable groove (23) extending along the fixed shaft (9) is provided at a position on the circumference of the first roller (7) corresponding to the fixed shaft (9); a rotating ring (24) is rotatably connected to the sliding sleeve (10); a connecting rod (25) is fixedly connected to the top of the rotating ring (24) and passes through the movable groove (23) and extends to the inside of the first roller (7); the connecting rod (25) extends to one side of the driving ring (17) and is fixedly connected to ear plates (26) respectively located on the inner and outer sides of the driving ring (17); a first guide bearing (27) extending into the first driving groove (18) is fixedly connected to the ear plate (26); and the first driving groove (18) extends in a wavy shape in the circumferential direction of the driving ring (17).

3. The device for restoring vegetation of desertified grassland according to claim 2, characterized in that: The auger blades comprise a first blade (11) and a second blade (12), wherein the first blade (11) and the second blade (12) are respectively located on two sides of the rotating ring (24), and the first blade (11) and the second blade (12) have opposite rotation directions.

4. The device for restoring vegetation of desertified grassland according to claim 3, characterized in that: A storage box (28) for storing mixed fertilizer is fixedly connected to the inner wall of the first drum (7) relative to the first turntable (16); a feeding port (29) communicating with the storage box (28) is provided on the side wall of the first drum (7); the feeding port (29) is provided with a sealing cover (30); a plurality of connecting pipes (31) corresponding to each of the connecting rods (25) are connected to the outer wall of the storage box (28); the connecting rod (25) is hollow; a hose (32) is connected between the connecting pipe (31) and the top end of the connecting rod (25); and a plurality of discharge holes (33) are provided at the junction of the bottom end of the connecting rod (25) and the rotating ring (24).

5. The device for restoring vegetation of desertified grassland according to claim 4, characterized in that: A feeding pipe (34) is slidably inserted at one end of the connecting pipe (31) close to the inside of the storage box (28), a return spring (35) is provided between the feeding pipe (34) and the connecting pipe (31), the feeding pipe (34) is located in the storage box (28), and a plurality of discharge ports (36) are provided on the peripheral wall of the feeding pipe (34), a first magnetic block (37) is fixedly connected to the top of the feeding pipe (34), a swing shaft (38) is rotatably connected to one end of the first roller (7) relative to the first driving shaft (19), and the One end of the swing shaft (38) located outside the first roller (7) is fixedly connected to a counterweight block (39), and one end of the swing shaft (38) located inside the first roller (7) is fixedly connected to a second magnetic block (40). When the first magnetic block (37) is adsorbed on the second magnetic block (40), the feed pipe (34) extends out of the connecting pipe (31) and opens the discharge port (36). In the absence of external force, the feed pipe (34) is retracted into the connecting pipe (31) and closes the discharge port (36).

6. The device for restoring vegetation of desertified grassland according to claim 1, characterized in that: The sowing member (45) comprises a telescopic tube (46) which is inserted into the peripheral wall of the second roller (41) and is slidable along the radial direction of the second roller (41), a closed tube (47) which is fixedly connected to the peripheral wall of the second roller (41) and sleeved on the telescopic tube (46), a conical tube (48) which is fixedly connected to the bottom end of the telescopic tube (46), and a pair of connecting plates (49) which are fixedly connected to the top of the telescopic tube (46). The second rotating disk (43) and the third rotating disk (44) are both provided with second driving grooves (50) along their circumferential directions on both end surfaces thereof. The second driving grooves (50) extend in an annular shape, and the second driving grooves (50) are provided with a feeding portion (52) which is protruding in a direction away from the axis and a The feeding portion (51) is protruded toward the axial direction, and the lowering portion (52) is located directly below the axis of the second turntable (43) or the third turntable (44). The feeding portion (51) is adjacent to the lowering portion (52). The connecting plate (49) is fixedly connected with a second guide bearing (53) slidably connected to the second driving groove (50). A sowing port (54) is provided on the peripheral wall of the telescopic tube (46). When the telescopic tube (46) passes through the lowering portion (52), the sowing port (54) is closed by the closing tube (47). When the telescopic tube (46) passes through the feeding portion (51), the sowing port (54) is located inside the second roller (41).

7. The device for restoring vegetation of desertified grassland according to claim 1, characterized in that: It also comprises a sand retaining belt (55), wherein a plurality of the sand retaining belts (55) cooperate to form a hexagonal grid structure.

8. The device for restoring vegetation of desertified grassland according to claim 7, characterized in that: The sand retaining belt (55) extends in a trapezoidal wave shape, and the wave crests or wave troughs between two adjacent sand retaining belts (55) correspond to each other and abut against each other, and a connecting piece is provided at each abutting position; The wave crest and the wave trough are respectively provided with a first half ring plate (57) and a second half ring plate (58) protruding outward, the first half ring plate (57) is provided with first grooves (59) on both sides of the top, and the second half ring plate (58) is provided with second grooves (60) on both sides of the bottom, and the adjacent corresponding first half ring plate (57) and second half ring plate (58) are plugged into each other through the first groove (59) and the second groove (60) to form a positioning hole (61); The connecting member comprises an anchor rod (62) slidably inserted into the positioning hole (61) and a limiting block (63) fixedly connected to the top end of the anchor rod (62).

9. The device for restoring vegetation of desertified grassland according to claim 7, characterized in that: The sand retaining belt (55) is provided with a plurality of ventilation holes (56).

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