Garlic sprout harvester with adjustable harvesting height

Abstract

The present invention discloses a garlic sprout harvester with adjustable harvesting height, which relates to the technical field of garlic sprout harvesters and includes a machine body, a power and transmission mechanism, a conveying mechanism, a movable cutter, and a static cutter. The garlic sprout harvester with adjustable harvesting height is configured such that a handle I in a switching mechanism is pulled to engage with a vertical slot, and then the handle I is rotated to drive a threaded rod to rotate, thereby driving a connecting plate I to move, thereby changing the height of the movable cutter and the static cutter at the bottom of the connecting plate I. When the angle of the movable cutter and the static cutter needs to be adjusted, a protrusion inside the handle I is pulled into an annular groove II. At this time, when the handle I is rotated, gear I drives gear II to rotate, causing gear II to drive an internal square rod I and a worm to rotate, meshing with a worm gear. The worm gear then drives a driving gear to mesh with a fixed gear, thereby driving the fixed gear and the cutter on the connecting plate II to rotate.

Description

Technical Field

[0001] The invention relates to the technical field of garlic sprout harvesters, in particular to a garlic sprout harvester with adjustable harvesting height. Background Art

[0002] Garlic sprouts are green seedlings that have developed to a certain period of time. They grow in farmland. Garlic sprout harvester is a kind of agricultural machinery equipment specially used for harvesting garlic sprouts. It can improve the efficiency of garlic sprout harvesting and reduce the intensity of manual labor.

[0003] For example, publication number CN111837622 discloses a device for harvesting garlic sprouts for agricultural use. The device comprises a rubber guide ring, a harvesting knife, a re-reaping knife and a transmission belt. The transmission belt can be driven to rotate by a motor, and the rotation of the transmission belt can drive the rubber guide ring to rotate. The rotation of the rubber guide ring can also drive the harvesting knife to rotate, thereby harvesting the garlic sprouts. However, some garlic sprouts cannot be completely cut off by the harvesting knife. The re-reaping knife can be used to re-reap the garlic sprouts, thereby ensuring a high harvesting efficiency of the garlic sprouts.

[0004] When the garlic sprout harvester in the above scheme harvests garlic sprouts, the driving component drives the cutting knife to move and harvests the garlic sprouts it touches. However, the position of the harvesting knife is fixed and the height and angle cannot be adjusted, and it cannot adapt to the harvesting needs of garlic sprouts at different heights. Summary of the Invention

[0005] The object of the present invention is to provide a garlic sprout harvester with adjustable harvesting height, so as to solve the problem in the above background technology that the existing garlic sprout harvester is difficult to adjust the harvesting height according to demand.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a garlic sprout harvester with adjustable harvesting height, comprising a body, a power and transmission mechanism, a conveying mechanism, a movable cutter and a static cutter, the power and transmission mechanism and the conveying mechanism are all installed on the body, the power and transmission mechanism connects the movable cutter, and the movable cutter is slidably connected to the static cutter, the top surface of the connecting plate I is installed with a connecting box, the bottom surface of the connecting box is open, the top surface of the connecting box is provided with a switching mechanism for switching the movement form of the movable cutter, a threaded rod is provided inside the connecting box, the outer side of the threaded rod is threadedly connected to a connecting frame, the two sides of the connecting frame are movably connected to the bracket through a rotating shaft, one side of the top surface of the bracket is connected with a connecting plate II, one side of the connecting plate I is connected with an inclined plate, one side of the bottom surface of the bracket is connected with the static cutter, the bottom surface of the connecting plate II is connected to the motor I, the top surface of the connecting plate II is installed with a fixed gear, the interior of the connecting box is rotatably installed with a connecting rod, the interior of the connecting rod is slidably connected with a square rod I, the bottom end of the square rod I is installed with a worm, and the outer side of the worm is meshed with a worm wheel.

[0007] Preferably, the power and transmission mechanism includes a motor 1 installed at the bottom of the connecting plate 1, an active bevel gear installed at the output end of the motor 1, the active bevel gear is meshedly connected with the driven bevel gear, a toggle plate is installed at the bottom end of the axle of the driven bevel gear, and a toggle block is installed on the bottom surface of the toggle plate; a toggle groove is provided on the movable cutter, the toggle block is inserted into the toggle groove and can rotate in the toggle groove, and the movable cutter is toggled to move; a connecting column is installed on the top surface of the static cutter, a slide groove is provided on the movable cutter, and the connecting column is inserted into the slide groove to limit and guide the movement of the movable cutter.

[0008] Preferably, the conveying mechanism includes a motor II installed on the outside of the machine body, the output end of the motor II is connected to one end of the central axis of the conveying roller I, the outer side of the conveying roller I is sleeved with a conveyor belt, one side of the conveyor belt is wrapped around the conveying roller II, one end of the central axis of the conveying roller II and the other end of the central axis of the conveying roller I are connected to the inner wall of the machine body through bearings, and the other end of the central axis of the conveying roller II passes through the machine body and is located outside the machine body.

[0009] Preferably, a through hole III is provided on the top surface of the connecting plate I, and a limiting rod is provided in the through hole III. The limiting rod can move up and down along the through hole III, and the bottom end of the limiting rod is connected to the top surface of the connecting frame.

[0010] Preferably, the switching mechanism includes a handle I that is slidably connected to the outside of the threaded rod, a gear I is installed at the bottom of the handle I, a protrusion is fixed on the inner side of the gear I, an annular groove I and an annular groove II are opened inside the threaded rod, and the annular groove I and the annular groove II are both slidably connected to the protrusion.

[0011] Preferably, a vertical groove is provided between the annular groove I and the annular groove II, and the vertical groove is opened on the outside of the threaded rod. A gear II is provided on one side of the gear I, and the gear II is installed on the connecting rod. The gear I can engage with the gear II.

[0012] Preferably, a synchronous wheel I is installed at the other end of the central axis of the conveying roller II, a synchronous belt is sleeved on the outer side of the synchronous wheel I, and a synchronous wheel II is sleeved on one side of the synchronous belt. A cleaning roller is provided in the machine body, and one end of the central axis of the cleaning roller is connected to the inner wall of the machine body through a bearing, and the other end of the central axis of the cleaning roller passes through the machine body and is located outside it, and a synchronous wheel II is installed at the other end of the central axis of the cleaning roller, and the synchronous wheel II and the synchronous wheel I are connected together through a synchronous belt.

[0013] Preferably, a guide plate is provided on one side of the cleaning roller, both sides of the guide plate are connected to the machine body, and a scraper is installed on the side of the guide plate close to the cleaning roller.

[0014] Preferably, a connecting plate III is installed near the top of the outer side of the inclined plate, the interior of the connecting plate III is movably connected to a connecting shaft through a bearing, the inner side of the connecting shaft is slidably connected to a handle II, and the bottom of the handle II is movably connected to a connecting block through a rotating shaft.

[0015] Preferably, the bottom surface of the connecting block is connected to a tension spring, the bottom end of the tension spring is connected to the connecting shaft, the bottom surface of the connecting shaft is connected to a seedling-moving plate, and the outer side of the bottom of the handle II is connected to a clamping rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the handle I is rotated, the gear I will not drive the gear II or the threaded rod to rotate, so as to prevent the height or angle of the cutter from changing. In this way, the height and angle of the garlic sprout harvester can be switched and adjusted through the above operations to adapt to the harvesting of garlic sprouts.

[0018] 2. The garlic sprout harvester with adjustable harvesting height is provided with a set of synchronous wheels I at one end of the conveyor roller II. The synchronous wheel I will rotate along with the conveyor roller II and drive the synchronous wheel II to rotate through the synchronous belt, so that the cleaning roller on one side of the synchronous wheel II rotates synchronously. When the rotating cleaning roller contacts the conveyor belt, it will clean the garlic sprouts adhering to the conveyor belt and make the garlic sprouts fall onto the inclined guide plate. The guide plate can guide the garlic sprouts into the collection box. In this way, the conveyor belt in the garlic sprout harvester can be cleaned through the above operation to prevent the waste of garlic sprouts caused by adhesion.

[0019] 3. The garlic sprout harvester with adjustable harvesting height needs to install seedling-pushing plates on both sides when harvesting garlic sprouts in order to gather the garlic sprouts to the cutting knife. In order to adapt to garlic sprout planting areas of different widths, the angle of the seedling-pushing plates needs to be adjusted. The handle II is pulled upward. When the handle II moves, the tension spring can be pulled to extend through the connecting block movably connected at the bottom. When the clamping rods around the handle II are disengaged from the cleaning roller, the handle II can be rotated to drive the connecting shaft and the seedling-pushing plate to rotate, so that the angle of the seedling-pushing plate changes. In this way, the angle of the seedling-pushing plate of the garlic sprout harvester can be adjusted through the above operations to adapt to garlic sprout harvesting sites of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of a three-dimensional half-section structure of the present invention;

[0023] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure of I;

[0024] Figure 5 Schematic diagram of the three-dimensional cross-sectional structure of the handle 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting plate II of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the cleaning roller of the present invention;

[0027] Figure 8 for Figure 3 Schematic diagram of the partially enlarged structure of II;

[0028] Figure 9 Schematic diagram of the three-dimensional cross-sectional structure of the connecting plate III of the present invention;

[0029] Figure 10 It is a schematic diagram of the three-dimensional structure of the movable cutter of the present invention.

[0030] In the figure: 1, machine body; 2, connecting plate I; 3, motor I; 4, active bevel gear; 5, toggle plate; 6, movable cutter; 7, driven bevel gear; 8, static cutter; 9, motor II; 10, conveyor belt; 11, collection box; 12, connecting box; 13, threaded rod; 14, connecting frame; 15, limit rod; 16, connecting plate II; 17, fixed gear; 18, connecting rod; 19, square rod I; 20, worm; 21, worm gear; 22, driving gear; 23, switching mechanism; 231, handle I; 2 32. Gear I; 233. Bump; 234. Annular groove I; 235. Vertical groove; 236. Annular groove II; 237. Gear II; 24. Inclined plate; 25. Conveyor roller I; 26. Conveyor roller II; 27. Synchronous pulley I; 28. Synchronous belt; 29. ​​Synchronous pulley II; 30. Cleaning roller; 31. Guide plate; 32. Scraper; 33. Connecting plate III; 34. Handle II; 35. Connecting block; 36. Tension spring; 37. Connecting shaft; 38. Seedling-moving plate; 39. Clamping rod; 40. Bracket. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1-10 As shown, the present invention provides a technical solution: a garlic sprout harvester with adjustable harvesting height, comprising a body 1, a connecting plate I2, a power and transmission mechanism, a conveying mechanism, a movable cutter 6 and a static cutter 8, the connecting plate I2 is mounted on one side of the body 1, the power and transmission mechanism and the conveying mechanism are all mounted on the body 1, the power and transmission mechanism connects the movable cutter 6, the movable cutter 6 is slidably connected to the static cutter 8, a connecting box 12 is mounted on the top surface of the connecting plate I2, the bottom surface of the connecting box 12 is open, the top surface of the connecting box 12 is provided with a switching mechanism 23 for switching the movement form of the movable cutter 6, a threaded rod 13 is provided inside the connecting box 12, the outer side of the threaded rod 13 is threadedly connected to a connecting frame 14, both sides of the connecting frame 14 are movably connected to a bracket 40 through a rotating shaft, one side of the top surface of the bracket 40 is connected to a connecting plate II16, one side of the connecting plate I2 is connected to an inclined plate 24, one side of the bottom surface of the bracket 40 is connected to the static cutter 8, the connecting box 12 is provided with a connecting box 12, The bottom surface of the connecting plate II16 is connected to the motor I3, and the top surface of the connecting plate II16 is provided with a fixed gear 17. The connecting box 12 is internally rotatably installed with a connecting rod 18, and the connecting rod 18 is internally slidably connected with a square rod I19. The top surface of the connecting plate I2 is provided with a through hole II, and the top surface of the connecting frame 14 is provided with a rectangular through groove II. The bottom end of the square rod I19 is located in the rectangular through groove II through the through hole II, and a worm 20 is installed at the bottom end of the square rod I19. The worm 20 is located in the rectangular through groove II, and a support frame is provided below the rectangular through groove II. The top surface of the support frame is connected to the bottom surface of the connecting frame 14. A rotating shaft is installed in the middle of the bottom end of the worm 20, and the bottom end of the rotating shaft is connected to the support frame through a bearing. The outer side of the worm 20 is meshed with a worm wheel 21, and a rotating shaft is installed on the worm wheel 21. The two ends of the rotating shaft are connected to the rectangular through groove II through bearings. A driving gear 22 is installed on the rotating shaft, and the driving gear 22 is meshed with the fixed gear 17.

[0033] The top surface of the connecting plate I2 defines a through hole I, the top surface of the connecting plate II16 defines a rectangular through slot I, and the top surface of the connecting frame 14 defines a threaded through hole. The bottom end of the threaded rod 13 passes through the through hole I and the threaded through hole is located within the rectangular through slot I. The threaded rod 13 and the through hole I are connected by a bearing, and the threaded rod 13 and the threaded through hole are threadedly engaged. The threaded engagement between the threaded rod 13 and the threaded through hole enables the threaded rod 13 and the connecting frame 14 to be threadedly connected together, thereby enabling adjustment of the cutter height. The rectangular through slot I ensures that the connecting frame 14 rotates with the fixed gear 17, thereby enabling adjustment of the cutter angle.

[0034] The connection box 12 is provided with a connecting rod 18 inside. A rotating shaft is fixedly mounted in the middle of the top of the connecting rod 18. The top of the rotating shaft is connected to the inner wall of the connection box 12 via a bearing. A groove is provided in the middle of the bottom of the connecting rod 18. A square rod 119 is installed in the groove. Slides are provided on the left and right sides of the groove. Slides slide in the slides. The inner sides of the slides are connected to the square rod 119. This structure enables a sliding connection between the square rod 119 and the connecting rod 18.

[0035] The power and transmission mechanism includes a motor I3 installed at the bottom of the connecting plate I2. The output end of the motor I3 is installed with an active bevel gear 4, which is meshed with a driven bevel gear 7. The bottom end of the axle of the driven bevel gear 7 is installed with a toggle plate 5, and the bottom surface of the toggle plate 5 is installed with a toggle block. The movable cutter 6 is provided with a toggle groove, and the toggle block is inserted into the toggle groove and can rotate in the toggle groove to toggle the movable cutter 6 to move. The top surface of the static cutter 8 is installed with a connecting column, and the movable cutter 6 is provided with a slide groove. The connecting column is inserted into the slide groove to limit and guide the movement of the movable cutter 6. The working of the motor I3 drives the active

[0036] The conveying mechanism includes a motor II9 installed on the outside of the body 1, the output end of the motor II9 is ​​connected to one end of the central axis of the conveying roller I25, the outer side of the conveying roller I25 is sleeved with a conveyor belt 10, and one side of the conveyor belt 10 is wrapped with a conveying roller II26, one end of the central axis of the conveying roller II26 and the other end of the central axis of the conveying roller I25 are connected to the inner wall of the body 1 through bearings, and the other end of the central axis of the conveying roller II26 passes through the body 1 and is located outside the body 1.

[0037] The top surface of the connecting plate I2 is provided with a through hole III, and a limiting rod 15 is provided in the through hole III. The limiting rod 15 can move up and down along the through hole III, and the bottom end of the limiting rod 15 is connected to the top surface of the connecting frame 14.

[0038] The switching mechanism 23 includes a handle I231 that is slidably connected to the outer side of the threaded rod 13, and a gear I232 is installed at the bottom of the handle I231. A protrusion 233 is fixed to the inner side of the gear I232. An annular groove I234 and an annular groove II236 are provided inside the threaded rod 13, and the annular groove I234 and the annular groove II236 are both slidably connected to the protrusion 233. A vertical groove 235 is provided between the annular groove I234 and the annular groove II236, and the vertical groove 235 is provided on the outer side of the threaded rod 13. A gear II237 is provided on one side of the gear I232, and the gear II237 is installed on the connecting rod 18. The gear I232 can engage with the gear II237.

[0039] During specific implementation, the garlic sprout harvester with adjustable harvesting height adjusts the height of the dynamic cutter 6 and the static cutter 8 by pulling the handle 1231 in the switching mechanism 23 upward, and the handle 1231 will drive the internal protrusion 233 to disengage from the annular groove 1234 and enter the vertical groove 235. At this time, the protrusion 233 can be engaged with the threaded rod 13, and the handle 1231 can be turned to drive the threaded rod 13 to rotate. When the threaded rod 13 rotates, it will be threaded with the connecting frame 14, thereby driving the connecting frame 14 to move, so that the dynamic cutter 6 and the static cutter at the bottom of the connecting frame 14 are connected. The height of 8 changes to adapt to the different cutting height requirements of garlic sprouts. The limit rod 15 will limit the movable connecting frame 14. When it is necessary to adjust the angle of the dynamic cutter 6 and the static cutter 8, the handle I231 is pulled up to make the protrusion 233 inside the handle I231 pass through the vertical groove 235 and come into the annular groove II236. At this time, the gear I232 outside the handle I231 will also move synchronously and move to a position engaged with the gear II237. At this time, when the handle I231 is turned, the protrusion 233 rotates in the annular groove II236, so the screw The pattern rod 13 does not rotate, but the gear I232 on the outside of the handle I231 drives the gear II237 to rotate, so that the gear II237 drives the internal square rod I19 to rotate, and the square rod I19 can drive the worm 20 at the bottom to rotate and mesh with the worm wheel 21. The worm wheel 21 drives the driving gear 22 to rotate, so that the driving gear 22 meshes with the fixed gear 17, and drives the fixed gear 17 and the connecting plate II16 to rotate, and the dynamic cutter 6 and the static cutter 8 will also rotate synchronously, so that the cutting angle changes according to the growth condition and root of the garlic sprout. Fine-tune the harvesting angle according to the health of the garlic sprouts, so as to obtain garlic sprouts of appropriate length and protect the roots to the maximum extent. After the adjustment is completed, turn the handle I231 so that the protrusion 233 inside it is aligned with the vertical groove 235, and at the same time push the handle I231 downward so that the protrusion 233 inside it passes through the vertical groove 235 and returns to the annular groove I234. At this time, the rotation of the handle I231 will not drive the gear II237 or the threaded rod 13 to rotate, which can prevent the height or angle of the cutter from changing. In this way, the height and angle of the garlic sprout harvester can be switched and adjusted through the above operations to adapt to the harvesting of garlic sprouts.

[0040] like Figure 1-Figure 3 and Figure 7-Figure 8As shown, a synchronous wheel I27 is installed at the other end of the central axis of the conveying roller II26, and a synchronous belt 28 is sleeved on the outer side of the synchronous wheel I27. A synchronous wheel II29 is sleeved on one side of the synchronous belt 28. A cleaning roller 30 is provided in the body 1, and one end of the central axis of the cleaning roller 30 is connected to the inner wall of the body 1 through a bearing, and the other end of the central axis of the cleaning roller 30 passes through the body 1 and is located outside it. A synchronous wheel II29 is installed at the other end of the central axis of the cleaning roller 30, and the synchronous wheel II29 and the synchronous wheel I27 are connected together through the synchronous belt 28; a guide plate 31 is provided on one side of the cleaning roller 30, and both sides of the guide plate 31 are connected to the body 1, and a scraper 32 is installed on the side of the guide plate 31 close to the cleaning roller 30.

[0041] In a specific implementation, the garlic sprout harvester with adjustable harvesting height, after harvesting the garlic sprouts, the motor II9 will drive the conveyor roller I25 and the conveyor roller II26 to rotate, so that the conveyor belt 10 moves, and the harvested garlic sprouts are transported to the collection box 11 on the body 1. In order to prevent the garlic sprouts from adhering to the conveyor belt 10, a set of synchronous wheels I27 is set at one end of the conveyor roller II26. The synchronous wheel I27 will rotate with the conveyor roller II26 and drive the synchronous wheel II29 to rotate through the synchronous belt 28, so that the synchronous wheel II29 The cleaning roller 30 on one side rotates synchronously. When the rotating cleaning roller 30 contacts the conveyor belt 10, it will clean the garlic sprouts adhering to the conveyor belt 10 and make the garlic sprouts fall onto the inclined guide plate 31. The guide plate 31 can guide the garlic sprouts into the collection box 11 on the body 1, reducing the waste of garlic sprouts. At the same time, after the rotating cleaning roller 30 contacts the scraper 32 on the guide plate 31, the garlic sprouts adhering to the outside will also be detached, completing self-cleaning. In this way, the conveyor belt 10 in the garlic sprout harvester can be cleaned through the above operations to prevent the waste of adhering garlic sprouts.

[0042] like Figure 1-Figure 3 and Figure 9 As shown, a connecting plate III33 is installed near the top of the outer side of the inclined plate 24, and the interior of the connecting plate III33 is movably connected to a connecting shaft 37 through a bearing, and the inner side of the connecting shaft 37 is slidably connected to a handle II34, and the bottom of the handle II34 is movably connected to a connecting block 35 through a rotating shaft; the bottom surface of the connecting block 35 is connected to a tension spring 36, and the bottom end of the tension spring 36 is connected to the connecting shaft 37, and the bottom surface of the connecting shaft 37 is connected to a seedling-moving plate 38, and the outer side of the bottom of the handle II34 is connected to a clamping rod 39; the top of the connecting plate II33 is provided with multiple groups of clamping grooves, and the clamping grooves are clamped and connected with the clamping rod 39, the interior of the handle II34 is provided with a sliding groove, and the sliding groove is slidably connected to the handle II34, the clamping rod 39 and the connecting plate II33 constitute a clamping structure, and the interior of the connecting shaft 37 is provided with a square groove matching the handle II34.

[0043] In specific implementation, the garlic sprout harvester with adjustable harvesting height needs to install seedling plates 38 on both sides in order to gather the garlic sprouts to the cutting knife when harvesting garlic sprouts. In order to adapt to the garlic sprout planting areas of different widths, the angle of the seedling plates 38 needs to be adjusted. The handle II34 is pulled up and moved up. When the handle II34 moves, the tension spring 36 can be pulled by the connecting block 35 movably connected at the bottom to extend. When the clamping rods 39 around the handle II34 are disengaged from the clamping groove, the handle II34 can be rotated to drive the connecting block 35 to move up. The connecting shaft 37 and the seedling-pushing plate 38 rotate to change the angle of the seedling-pushing plate 38. After the adjustment is completed, the handle II34 can be released. At this time, the tension spring 36 will be reset, and the handle II34 and the card rod 39 will also be reset by pulling the card rod 39 to engage with the card groove at the top of the connecting plate II33, completing the limit of the handle II34, and fixing the angle of the seedling-pushing plate 38. In this way, the angle of the seedling-pushing plate 38 of the garlic sprout harvester can be adjusted through the above operation to adapt to garlic sprout harvesting sites of different widths.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A garlic sprout harvester with adjustable harvesting height, comprising a body (1), a connecting plate 1 (2), a power and transmission mechanism, a conveying mechanism, a movable cutter (6) and a static cutter (8), wherein the connecting plate 1 (2) is mounted on one side of the body (1), the power and transmission mechanism and the conveying mechanism are both mounted on the body (1), the power and transmission mechanism is connected to the movable cutter (6), and the movable cutter (6) is slidably connected to the static cutter (8), and is characterized in that: A connection box (12) is installed on the top surface of the connection plate I (2). The bottom surface of the connection box (12) is open. A switching mechanism (23) for switching the moving form of the movable cutter (6) is provided on the top surface of the connection box (12). A threaded rod (13) is provided inside the connection box (12). The outer side of the threaded rod (13) is threadedly connected to a connection frame (14). Both sides of the connection frame (14) are movably connected to the bracket (40) through a rotating shaft. One side of the top surface of the bracket (40) is connected to the connection plate II (16). One side of the connecting plate I (2) is connected to an inclined plate (24), one side of the bottom surface of the bracket (40) is connected to the static cutter (8), the bottom surface of the connecting plate II (16) is connected to the motor I (3), the top surface of the connecting plate II (16) is installed with a fixed gear (17), the interior of the connecting box (12) is rotatably installed with a connecting rod (18), the interior of the connecting rod (18) is slidably connected to a square rod I ((19)), the bottom end of the square rod I (19) is installed with a worm (20), and the outer side of the worm (20) is meshed with a worm wheel (21); The power and transmission mechanism comprises a motor 1 (3) mounted on the bottom of the connecting plate 1 (2), an active bevel gear (4) mounted on the output end of the motor 1 (3), the active bevel gear (4) meshingly connected with a driven bevel gear (7), a toggle plate (5) mounted on the bottom end of the axle of the driven bevel gear (7), a toggle block mounted on the bottom surface of the toggle plate (5); a toggle groove is provided on the movable cutter (6), the toggle block is inserted into the toggle groove and can rotate in the toggle groove, toggle the movable cutter (6) to move; a connecting column is mounted on the top surface of the static cutter (8), a slide groove is provided on the movable cutter (6), the connecting column is inserted into the slide groove, and is used to limit and guide the movement of the movable cutter (6); The switching mechanism (23) includes a handle I (231) slidably connected to the outer side of the threaded rod (13), a gear I (232) is installed at the bottom of the handle I (231), a protrusion (233) is fixed on the inner side of the gear I (232), and an annular groove I (234) and an annular groove II (236) are formed inside the threaded rod (13), and the annular groove I (234) and the annular groove II (236) are both slidably connected to the protrusion (233); A vertical groove (235) is provided between the annular groove I (234) and the annular groove II (236), the vertical groove (235) being opened on the outer side of the threaded rod (13), a gear II (237) being provided on one side of the gear I (232), the gear II (237) being mounted on the connecting rod (18), and the gear I (232) being able to mesh with the gear II (237); A connecting plate III (33) is installed near the top of the outer side of the inclined plate (24), and the interior of the connecting plate III (33) is movably connected to a connecting shaft (37) through a bearing, and the inner side of the connecting shaft (37) is slidably connected to a handle II (34), and the bottom of the handle II (34) is movably connected to a connecting block (35) through a rotating shaft; The bottom surface of the connecting block (35) is connected to a tension spring (36), the bottom end of the tension spring (36) is connected to a connecting shaft (37), the bottom surface of the connecting shaft (37) is connected to a seedling-moving plate (38), and the outer side of the bottom of the handle II (34) is connected to a clamping rod (39).

2. The garlic sprout harvester with adjustable harvesting height according to claim 1, characterized in that: The conveying mechanism comprises a motor II (9) mounted on the outside of the machine body (1), the output end of the motor II (9) being connected to one end of the central axis of a conveying roller I (25), a conveying belt (10) being sleeved on the outside of the conveying roller I (25), a conveying roller II (26) being wound around one side of the conveying belt (10), one end of the central axis of the conveying roller II (26) and the other end of the central axis of the conveying roller I (25) being connected to the inner wall of the machine body (1) through bearings, and the other end of the central axis of the conveying roller II (26) passing through the machine body (1) and being located outside the machine body (1).

3. The garlic sprout harvester with adjustable harvesting height according to claim 1, characterized in that: A through hole III is provided on the top surface of the connecting plate I (2), and a limiting rod (15) is provided in the through hole III. The limiting rod (15) can move up and down along the through hole III, and the bottom end of the limiting rod (15) is connected to the top surface of the connecting frame (14).

4. The garlic sprout harvester with adjustable harvesting height according to claim 2, characterized in that: The other end of the central axis of the conveying roller II (26) is equipped with a synchronous wheel I (27), the outer side of the synchronous wheel I (27) is sleeved with a synchronous belt (28), and one side of the synchronous belt (28) is sleeved with a synchronous wheel II (29). A cleaning roller (30) is provided in the machine body (1), one end of the central axis of the cleaning roller (30) is connected to the inner wall of the machine body (1) through a bearing, the other end of the central axis of the cleaning roller (30) passes through the machine body (1) and is located outside the machine body, and the other end of the central axis of the cleaning roller (30) is equipped with a synchronous wheel II (29), and the synchronous wheel II (29) and the synchronous wheel I (27) are connected together through the synchronous belt (28).

5. The garlic sprout harvester with adjustable harvesting height according to claim 4, characterized in that: A guide plate (31) is provided on one side of the cleaning roller (30), both sides of the guide plate (31) are connected to the machine body (1), and a scraper (32) is installed on the side of the guide plate (31) close to the cleaning roller (30).

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