Garlic planter

Abstract

The application provides a garlic seeding machine, and belongs to the technical field of agricultural machinery, which comprises a frame, a seeding structure and a vibration structure; the front end of the frame is connected with a traction device; the lower end of the frame is sequentially provided with a land leveler, a furrow opener and a compression roller from front to back; and a garlic seed box is further arranged on the frame; the seeding structure comprises the garlic seed box, a seeding chain and a chain box which are sequentially arranged on the frame from front to back; the chain box is located at the rear end of the seeding chain and above the furrow opener; a plurality of seeding spoons are arranged on the seeding chain; the vibration structure comprises an adjusting shaft which is hingedly connected to the outlet end of the garlic seed box and a tensioning structure which is arranged on one side of the adjusting shaft and abuts against the lower end curved surface of the seeding chain; and the garlic seeding machine provided by the application abuts against the lower end curved surface of the seeding chain through the tensioning structure on one side of the adjusting shaft to form vibration through the curve of the seeding chain itself, so that the structure is simple, a motor is not needed for driving, the problem of uneven vibration frequency is avoided, and the service life of the vibration structure is improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and more specifically, relates to a garlic planter. Background Technology

[0002] During operation, garlic planters must prevent both double-seeding and missed-seeding, ensuring that each planting position is planted with one garlic seed. Currently used garlic planters employ two sprockets to form a parallel ring support for the garlic delivery chain. The seed scoops, spaced apart on the chain, have only one cavity. To prevent missed-seeding, each cavity can hold more than two garlic seeds. As the chain moves upwards, the seed scoop picks up two or more seeds from the garlic seed metering box. An excess seed is then removed by a de-weighting mechanism, consisting of a motor, a striking block, a return spring, and a hexagonal shaft. During operation, the motor drives the hexagonal shaft to rotate. During this rotation, the vertical section is periodically pushed out, causing it to reciprocate and strike the chain. This vibrates the seed scoop, dislodging excess seeds into the garlic seed metering box, from where they are then deflected downwards by the upper sprocket for planting.

[0003] The above-mentioned deduplication mechanism has the following disadvantages:

[0004] 1. When the seeder is working in the field, the field conditions are relatively complex, and the resistance encountered during the sowing process is not constant or has a large variable, which causes the current output of the engine to be unstable, forcing the motor speed to be uneven, thus affecting the vibration frequency and thus affecting the weight removal effect; at the same time, the vibration of the engine will also have an impact.

[0005] 2. The hexagonal shaft is in direct contact with the striking block and rotates at a high speed, causing the hexagonal shaft to wear out quickly, resulting in vibration failure.

[0006] 3. Due to the difference in the size of garlic cloves, higher frequency vibration will cause slightly smaller garlic cloves to fall off the seed spoon, while lower frequency vibration has little effect on removing the weight of slightly larger garlic cloves.

[0007] 4. Because the seeding chain is close to the seed box, and the garlic seeds are quite moist during the actual planting process, the friction between the garlic seeds is relatively high. There is a chance that the chain will cause the garlic seeds to fall out of the seed box. Summary of the Invention

[0008] The purpose of this invention is to provide a garlic planter that effectively avoids the problem of garlic seed replanting.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a garlic planter, comprising:

[0010] The frame has a traction device connected to its front end, and a leveler, a trencher, and a pressure roller are arranged sequentially from front to back at the lower end of the frame.

[0011] The sowing structure includes a garlic seed box, a sowing chain, and a chain box arranged sequentially from front to back on the frame. The chain box is located at the rear end of the sowing chain and above the furrow opener. The sowing chain is provided with a plurality of sowing scoops, which are spaced apart along the length of the sowing chain.

[0012] The vibration structure includes an adjusting shaft hinged to the outlet end of the garlic seed box and a tensioning structure disposed on one side of the adjusting shaft. The tensioning structure rotates around the adjusting shaft to abut against the lower curved surface of the sowing chain.

[0013] In another embodiment of this application, the vibration structure further includes an adjustment assembly; the adjustment assembly includes an adjustment plate connected to the adjustment shaft and a locking member disposed on the frame; the adjustment plate is provided with a limiting hole; the locking member includes a threaded rod passing through the limiting hole and a tightening handle threadedly connected to the threaded rod.

[0014] In another embodiment of this application, the tensioning structure is a U-shaped rod, the open end of which is fixed to the adjusting shaft, and the closed end of which is attached to the lower curved surface of the seeding chain.

[0015] In another embodiment of this application, there are multiple U-shaped rods, and each of the multiple U-shaped rods corresponds to one of the multiple seeding chains.

[0016] In another embodiment of this application, the garlic seed box is provided with a partition plate, which divides the inner cavity of the garlic seed box into a loading cavity and a sowing cavity. The partition plate is provided with a plurality of connecting holes that connect the loading cavity and the sowing cavity. The sowing chain takes seeds through the sowing cavity.

[0017] In another embodiment of this application, a plate is slidably mounted longitudinally on the partition plate. The longitudinal movement of the plate is used to adjust the opening of the connecting hole. The upper part of the plate is provided with a longitudinal guide hole, and a positioning device passes through the guide hole. The positioning device includes a fastening knob connected to the partition plate.

[0018] In another embodiment of this application, a sprocket shaft is rotatably provided on the frame. The sprocket shaft is located at the outlet end of the garlic seed box. A main drive sprocket is sleeved on the sprocket shaft, and a sprocket protection box is provided on one side of the main drive sprocket.

[0019] In another embodiment of this application, the sprocket protection box includes an arc-shaped portion covering one side of the main drive sprocket and extension portions located on both sides of the arc-shaped portion. The extension portions are provided with through holes, and the through holes are connected to the frame by means of a fixed shaft.

[0020] In another embodiment of this application, the pressure roller and the main drive sprocket are driven by a gearbox. A first transmission device is provided between the pressure roller and the input sprocket of the gearbox, and a second transmission device is provided between the output sprocket of the gearbox and the main drive sprocket. The first transmission device includes a first sprocket located on one side of the pressure roller, a first auxiliary sprocket and a second auxiliary sprocket located at the lower end of the gearbox. The first sprocket and the first auxiliary sprocket are connected by a chain. The first auxiliary sprocket and the second auxiliary sprocket are coaxially arranged, and the second auxiliary sprocket is connected to the input sprocket of the gearbox by a chain. The second transmission device includes a second sprocket sleeved on the sprocket shaft. The output sprocket of the gearbox is connected to the second sprocket by a chain. The second sprocket rotates synchronously with the sprocket shaft.

[0021] In another embodiment of this application, the sowing spoon is L-shaped, and the sowing spoon includes a base plate connected to the sowing chain and a back plate perpendicular to the base plate. Both the base plate and the back plate are rectangular, and the inner sides of the base plate and the back plate are provided with spoon grooves for holding garlic seeds. The chain box has a rectangular passage cavity adapted to the back plate.

[0022] The beneficial effects of the garlic planter provided by the present invention are as follows: Compared with the prior art, the garlic planter of the present invention, by rotating an adjustment shaft on the frame, and the tensioning structure on one side of the adjustment shaft abutting against the lower curved surface of the planting chain, the vibration is generated by the curve of the planting chain itself. The structure is simple, does not require motor drive, avoids the problem of uneven vibration frequency, and also improves the service life of the vibration structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a garlic planter provided in an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of the garlic seed box provided in an embodiment of the present invention;

[0026] Figure 3This is a schematic diagram showing the distribution of the insert plates within the garlic seed box according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the vibration structure provided in an embodiment of the present invention.

[0028] In the diagram: 1. Connecting frame; 2. Frame; 3. Garlic seed box; 3a. Loading chamber; 3b. Sowing chamber; 4. Leveler; 5. Furrow opener; 6. Chain box; 7. Pressure roller; 8. Gearbox; 9. Output sprocket; 10. Second sprocket; 11. Adjusting plate; 12. Tightening handle; 13. Limiting hole; 14. Partition plate; 15. Connecting hole; 16. Insert plate; 16a. Limiting baffle; 16b. Guide plate; 16c. Guide hole; 17. Positioning rod; 18. Fastening knob; 19. Sowing chain; 20. Sowing spoon; 21. Sprocket shaft; 22. Main drive sprocket; 23. Sprocket protection box; 24. Adjusting shaft; 25. End rod; 26. Side rod. Detailed Implementation

[0029] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] Please see Figures 1 to 4 The garlic planter provided by the present invention will now be described. The garlic planter includes a frame 2, a planting structure, and a vibration structure. The front end of the frame 2 is connected to a traction device, and the lower end of the frame 2 is provided with a leveler 4, a furrow opener 5, and a pressure roller 7 from front to back. The frame 2 is also provided with a garlic seed box 3. The planting structure includes a garlic seed box 3, a planting chain 19, and a chain box 6 arranged from front to back on the frame 2. The chain box 6 is located at the rear end of the planting chain 19 and above the furrow opener 5. The planting chain 19 is provided with a plurality of planting scoops 20, which are spaced apart along the length of the planting chain 19. The vibration structure includes an adjusting shaft 24 hinged to the outlet end of the garlic seed box 3 and a tensioning structure provided on one side of the adjusting shaft 24. The tensioning structure rotates around the adjusting shaft 24 to abut against the curved surface of the lower end of the planting chain 19.

[0031] Compared with the prior art, the garlic planter provided by this invention has a frame 2 whose front end is connected to a traction device and moves forward under the action of the traction device; a leveler 4, a furrow opener 5, and a pressure roller 7 are arranged sequentially from front to back at the lower end of the frame 2; a garlic seed box 3 is also provided at the front end of the frame 2, which is used to store garlic seeds and is transported to the chain box 6 by the planting chain 19 and the planting spoon 20; the garlic seeds move down along the chain box 6 and fall to the rear side of the furrow opener 5; finally, the garlic seeds are covered with soil, and the pressure roller 7 presses over the garlic seeds to flatten the soil.

[0032] As the sowing chain 19 moves, the sowing spoon 20 removes garlic seeds from the garlic seed box 3 and moves backward with the sowing chain 19. During this movement, the adjusting shaft 24 rotates, causing the tensioning structure to rotate around it, so that the tensioning structure fits against the lower curved surface of the sowing chain 19 and is fixed in place. As the sowing chain 19 moves, the lower curved surface of the sowing chain 19 vibrates due to friction with the tensioning structure, causing the sowing chain 19 to vibrate continuously, thereby shaking off excess garlic seeds from the sowing spoon 20 and achieving the effect of preventing replanting.

[0033] The garlic planter provided by the present invention uses an adjusting shaft 24 that is rotatably mounted on the frame 2. The tensioning structure on one side of the adjusting shaft 24 abuts against the lower curved surface of the planting chain 19, and the planting chain 19 vibrates through its own curve. The structure is simple, does not require a motor drive, avoids the problem of uneven vibration frequency, and also improves the service life of the vibration structure.

[0034] Optionally, a connecting frame 1 is provided at the front end of the frame 2, and the connecting frame 1 is hinged to the rear end of the traction equipment. The traction equipment can be a tractor.

[0035] In some possible embodiments, please refer to Figure 1 and Figure 4 The vibration structure also includes an adjustment assembly; the adjustment assembly includes an adjustment plate 11 connected to the adjustment shaft 24 and a locking member provided on the frame 2; the adjustment plate 11 is provided with a limiting hole 13; the locking member includes a threaded rod passing through the limiting hole 13 and a tightening handle 12 threadedly connected to the threaded rod.

[0036] The two ends of the adjusting shaft 24 pass through the frame 2 and extend outward from the outside of the frame 2. An adjusting plate 11 is connected to each end of the adjusting shaft 24. The adjusting plate 11 can be manually swung. When the adjusting plate 11 swings, it drives the adjusting shaft 24 to rotate around its axis.

[0037] When the adjusting shaft 24 rotates, the tensioning structure located on one side of the adjusting shaft 24 also rotates. The tensioning structure rotates around the adjusting shaft 24 to change the tension of the sowing chain 19, thereby changing the vibration intensity of the sowing chain 19. Specifically, the stronger the tension of the sowing chain 19 caused by the rotation of the tensioning structure, the greater the tensioning force on the sowing chain 19, the higher the fit between the lower curved surface of the sowing chain 19 and the tensioning structure, and consequently the greater the vibration amplitude of the sowing chain 19 during sowing.

[0038] The locking component includes a threaded rod on the frame 2, which passes through the limiting hole 13 on the adjusting plate 11. A tightening handle 12 is sleeved on the threaded rod. The tightening handle 12 is rotated to press the adjusting plate 11 onto the frame 2 to limit the rotation of the adjusting plate 11 and achieve the positioning of the tensioning structure.

[0039] The limiting hole 13 on the adjusting plate 11 is an arc-shaped elongated hole, the center of which is located on the axis of the adjusting shaft 24. When the adjusting shaft 24 rotates, the threaded rod is always located inside the elongated hole. Furthermore, both ends of this elongated hole are used to limit the tensioning structure, controlling the maximum and minimum tension.

[0040] When adjusting the tension, loosen the tightening handles 12 on both sides of the adjusting shaft 24, manually move the adjusting plate 11, and observe the tension; after determining the tension, tighten the tightening handles 12 on both sides of the adjusting shaft 24.

[0041] To improve the service life of the chain, when sowing is not required, loosen the rotating sleeve, adjust the tension to the lowest level, or even detach the tensioning structure from the lower curved surface of the sowing chain 19.

[0042] In some possible embodiments, please refer to Figure 4 The tensioning structure is a U-shaped rod, with the open end of the U-shaped rod fixed to the adjusting shaft 24 and the closed end of the U-shaped rod attached to the lower curved surface of the sowing chain 19.

[0043] The tensioning structure is a U-shaped rod, comprising two side rods 26 and one end rod 25. The two side rods 26 are connected to the adjusting shaft 24, and the end rod 25 is connected to the free ends of the two side rods 26. During tensioning, the end rod 25 is in contact with the lower curved surface of the seeding chain 19.

[0044] Optionally, since multiple rows of garlic are planted simultaneously, multiple planting chains 19 are arranged in parallel. To ensure consistent tension across the multiple planting chains 19, the length of the end rod 25 of the U-shaped rod is greater than the coverage width of all planting chains 19. The end rod 25 covers all planting chains 19, allowing for simultaneous adjustment of all planting chains 19.

[0045] In addition, multiple U-shaped rods can be provided, with each U-shaped rod corresponding to a multiple seeding chain 19, and the end rod 25 of each U-shaped rod is attached to a seeding chain 19.

[0046] In some possible embodiments, please refer to Figure 2 and Figure 3 The garlic seed box 3 is equipped with a partition plate 14, which divides the inner cavity of the garlic seed box 3 into a loading cavity 3a and a sowing cavity 3b. The partition plate 14 has several connecting holes 15 that connect the loading cavity 3a and the sowing cavity 3b. The sowing chain 19 takes seeds through the sowing cavity 3b.

[0047] To reduce the pressure on the garlic cloves when the sowing chain 19 passes through the garlic seed box 3, a partition plate 14 is installed inside the garlic seed box 3. The partition plate 14 is set along the width direction of the frame 2, dividing the inner cavity of the garlic seed box 3 into a front loading chamber 3a and a rear sowing chamber 3b. The front loading chamber 3a is used to hold garlic cloves, and then the garlic cloves enter the sowing chamber 3b through the connecting hole 15. The sowing chain 19 passes through the bottom plate of the sowing chamber 3b from bottom to top and enters the sowing chamber 3b. After taking the cloves from the sowing chamber 3b, it moves out from the upper outlet of the sowing chamber 3b.

[0048] To reduce the pressure on the sowing chain 19 when picking up seeds, most of the garlic seeds can only accumulate in the loading chamber 3a, and only a small portion can enter the sowing chamber 3b through the connecting hole 15 at the lower end of the partition plate 14. This ensures that the sowing spoon 20 on the sowing chain 19 can pick up garlic seeds, but will not be squeezed by a large number of garlic seeds. This design reduces the moving pressure of the sowing chain 19, improves the service life of the sowing chain 19, and at the same time reduces the probability of the sowing spoon 20 picking up multiple garlic seeds.

[0049] Because garlic cloves vary in size, the required amount of garlic cloves in the planting chamber 3b also varies, therefore the size of the connecting hole 15 needs to be adjusted. A sliding plate 16 is mounted longitudinally on the partition plate 14. The longitudinal movement of the sliding plate 16 is used to adjust the opening of the connecting hole 15. The upper part of the sliding plate 16 is provided with a longitudinal guide hole 16c, and a positioning device passes through the guide hole 16c. The positioning device includes a fastening knob 18 connected to the partition plate 14.

[0050] Specifically, the flow cross-sectional area of ​​the connection holes on the partition plate 14 is uniform. An insert plate 16 is provided on one side of the partition plate 14. The insert plate 16 can move up and down to block part or all of the connection holes. A guide hole 16c is provided at the upper part of the insert plate 16. A positioning device passes through the guide hole 16c. The fastening knob 18 of the positioning device presses and fixes the insert plate 16 onto the partition plate 14 by rotation, thereby restricting the movement of the insert plate 16 and limiting the flow cross-sectional area of ​​the connection holes.

[0051] Optionally, the insert plate 16 includes a limiting baffle 16a and a guide plate 16b. The guide plate 16b is located at the upper end of the limiting baffle 16a, and the guide hole 16c is formed on the guide plate 16b. The area of ​​the limiting baffle 16a is larger than the flow area of ​​the connecting hole 15. A positioning rod 17 is provided above the partition plate 14, and a fastening knob 18 is threadedly connected to the positioning rod 17. The rotation of the fastening knob 18 is used to fix the insert plate 16 on the positioning rod 17.

[0052] In addition, each connecting hole 15 corresponds to one or more seeding chains 19, and the distance between adjacent seeding chains 19 is the row spacing for seeding.

[0053] When the insert plate 16 is fully lowered, it completely seals the corresponding connecting hole 15, preventing the garlic seed from entering the corresponding planting chamber 3b area through the connecting hole 15. Therefore, the planting chain 19 and the planting spoon 20 in this area cannot contact the garlic seed, resulting in idle rotation. The number of rows planted by the seeder changes.

[0054] In some possible embodiments, please refer to Figure 2 A sprocket shaft 21 is rotatably mounted on the frame 2. The sprocket shaft 21 is located at the outlet end of the garlic seed box 3. A main drive sprocket 22 is mounted on the sprocket shaft 21. A sprocket protection box 23 is provided on one side of the main drive sprocket 22.

[0055] Both the sprocket shaft 21 and the main drive sprocket 22 are located at the outlet end of the garlic seed box 3. Due to the high moisture content of the garlic seeds during planting, the friction between the seeds is relatively high, and the chain may lift the seeds and cause them to fall into the garlic seed box 3 due to vibration. To facilitate the transport and dropping of the garlic seeds, the sprocket shaft 21 and the main drive sprocket 22 are located at the outlet end of the garlic seed box 3 to ensure that any garlic seeds lifted during transport or any excess seeds are shaken off and dropped into the garlic seed box 3.

[0056] Since garlic cloves may come into contact with the exposed main drive sprocket 22 when they fall, a sprocket protection box 23 is installed on the side of the main drive sprocket 22 that is not in contact with the planting chain 19. The sprocket protection box 23 is used to cover the teeth of the main drive sprocket 22 that are not in contact with the planting chain 19, preventing the falling garlic cloves from coming into contact with them, thereby reducing the probability of the garlic cloves being damaged by the gears and reducing losses for garlic farmers.

[0057] Specifically, the sprocket protection box 23 includes an arc-shaped portion covering one side of the main drive sprocket 22 and extension portions located on both sides of the arc-shaped portion. The extension portions are provided with through holes, which are connected to the frame 2 by means of fixed shafts.

[0058] Two fixed shafts are provided on the side of the sprocket shaft 21, and the two extensions of the sprocket protection box 23 are respectively connected to the two fixed shafts to fix the sprocket protection box 23.

[0059] Optionally, the included angle between the lines connecting the two extensions can be acute, right, or obtuse. The edges of the two extensions are parallel to the seeding chains 19 on both sides of the main drive sprocket 22.

[0060] Optionally, the seeding chain 19 is supported by multiple sprockets, each of which is equipped with a sprocket protection box 23.

[0061] Optionally, the sprocket protection box 23 is made of ABS material, which is low in cost, easy to install, simple in structure, and convenient for promotion and application.

[0062] In some possible embodiments, the power source for the conventional main drive sprocket 22 is a separate motor. The rotation of the motor drives the main drive sprocket 22 to rotate, thereby moving the sowing chain 19. However, the speed of the motor limits the moving speed of the sowing chain 19, and the starting and stopping of the motor affects the sowing, which can easily lead to inconsistencies between the start and stop states of the vehicle and the start and stop states of the motor, resulting in double-seeding and missed sowing.

[0063] The power source provided by this invention comes from the pressure roller 7. The pressure roller 7 is connected to the main drive sprocket 22 via a gearbox 8. A first transmission device is provided between the pressure roller 7 and the input sprocket of the gearbox 8, and a second transmission device is provided between the output sprocket 9 of the gearbox 8 and the main drive sprocket 22. The first transmission device includes a first sprocket on one side of the pressure roller 7, a first auxiliary sprocket and a second auxiliary sprocket at the lower end of the gearbox 8. The first sprocket and the first auxiliary sprocket are connected by a chain. The first auxiliary sprocket and the second auxiliary sprocket are coaxially arranged. The second auxiliary sprocket is connected to the input sprocket of the gearbox 8 by a chain. The second transmission device includes a second sprocket 10 sleeved on the sprocket shaft 21. The output sprocket 9 of the gearbox 8 is connected to the second sprocket 10 by a chain. The second sprocket 10 rotates synchronously with the sprocket shaft 21.

[0064] Specifically, a first sprocket is provided at one end of the pressure roller 7, and the first sprocket rotates when the pressure roller 7 rolls. A first auxiliary sprocket is provided in front of the first sprocket, located at the lower end of the gearbox 8 and at the same height as the first sprocket. The first auxiliary sprocket and the first sprocket are connected by a chain, that is, when the pressure roller 7 rotates, the first sprocket rotates, and at the same time, the first auxiliary sprocket and the first sprocket rotate synchronously under the action of the chain. Since the pressure roller 7 is located at a low position, in order to prevent the first sprocket, the first auxiliary sprocket and the chain from being damaged by soil or debris, the first sprocket, the first auxiliary sprocket and the chain are all wrapped in a protective shell on one side of the frame 2.

[0065] The first auxiliary sprocket is located below the gearbox 8, and a second auxiliary sprocket is coaxially mounted on one side of the first auxiliary sprocket. The second auxiliary sprocket is connected to the input sprocket of the gearbox 8 via a chain. Driven by the chain, the second auxiliary sprocket rotates synchronously with the input sprocket of the gearbox 8.

[0066] The gearbox 8 can adjust the speed ratio of its input sprocket and output sprocket 9, thereby adjusting the speed ratio of the sowing main drive sprocket 22 and the pressure roller 7.

[0067] The output sprocket 9 of the gearbox 8 is connected to the main drive sprocket 22 via a second sprocket 10. The second sprocket 10 is sleeved on the outside of the sprocket shaft 21 and located on the outside of the frame 2, and rotates synchronously with the sprocket shaft 21. The second sprocket 10 and the output sprocket 9 of the gearbox 8 are connected by a chain to achieve synchronous rotation. When the second sprocket 10 rotates, the sprocket shaft 21 rotates, and consequently the main drive sprocket 22 sleeved on the sprocket shaft 21 rotates simultaneously.

[0068] In some possible embodiments, please refer to Figure 2 The sowing spoon 20 is L-shaped and includes a base plate connected to the sowing chain 19 and a back plate perpendicular to the base plate. Both the base plate and the back plate are rectangular, and the inner sides of the base plate and the back plate are provided with spoon grooves for holding garlic seeds. The chain box 6 has a rectangular passage cavity that is adapted to the back plate.

[0069] Multiple sowing scoops 20 are fixed on the sowing chain 19, each with the same structure and size. The base plate of the sowing scoop 20 is fixedly connected to the sowing chain 19, and its back plate is perpendicular to the base plate and forms an L-shaped structure with the base plate. Both the back plate and the base plate are rectangular, and slots for holding garlic seeds are opened on opposite sides of the back plate and the base plate.

[0070] Specifically, during sowing, since the sowing chain 19, passing through the sowing chamber 3b, moves from bottom to top, the garlic seeds fall into the scoop groove on the front of the back plate and move upward with the sowing chain 19. When passing the main drive sprocket 22, the direction of movement of the sowing chain 19 changes. As the sowing scoop 20 flips, the garlic seeds fall into the scoop groove on the bottom plate and move backward with the sowing chain 19 until they enter the chain box 6. When the garlic seeds enter the chain box 6, the sowing chain 19 changes its direction of movement again under the action of the sprocket. The garlic seeds in the scoop groove on the bottom plate fall downward to the opposite side of the back plate of the previous sowing scoop 20 and move downward with the previous sowing scoop 20 until they reach the bottom of the chain box 6 and fall into the soil.

[0071] To ensure the normal transport of garlic seeds within the chain box 6, the inner cavity of the chain box 6 has a rectangular cross-section. A rectangular passage cavity is formed between the chain box 6 and the sowing chain 19. This rectangular passage cavity is adapted to the size of the back plate / bottom plate of the sowing spoon 20, preventing garlic seeds from getting stuck in the chain box 6 and preventing smaller garlic seeds from falling out of the gap between the sowing spoon 20 and the chain box 6, causing replanting or missed sowing.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A garlic planter, characterized in that, include: The frame (2) is connected to the traction device at the front end, and the lower end of the frame (2) is provided with a leveler (4), a trencher (5) and a pressure roller (7) from front to back. The sowing structure includes a garlic seed box (3), a sowing chain (19), and a chain box (6) arranged sequentially from front to back on the frame (2). The chain box (6) is located at the rear end of the sowing chain (19) and above the furrow opener (5). The sowing chain (19) is provided with a plurality of sowing spoons (20), which are spaced apart along the length of the sowing chain (19). The vibration structure includes an adjustment shaft (24) hinged to the outlet end of the garlic seed box (3) and a tensioning structure disposed on one side of the adjustment shaft (24). The tensioning structure rotates around the adjustment shaft (24) to abut against the lower curved surface of the sowing chain (19). The tensioning structure is a U-shaped rod, the open end of which is fixed to the adjusting shaft (24), and the closed end of which is attached to the lower curved surface of the sowing chain (19); the length of the end rod (25) of the U-shaped rod is greater than the coverage width of all the sowing chains (19); The vibration structure also includes an adjustment assembly; the adjustment assembly includes an adjustment plate (11) connected to the adjustment shaft (24) and a locking member provided on the frame (2); the adjustment plate (11) is provided with a limiting hole (13); the locking member includes a threaded rod passing through the limiting hole (13) and a tightening handle (12) threadedly connected to the threaded rod; A sprocket shaft (21) is rotatably mounted on the frame (2). The sprocket shaft (21) is located at the outlet end of the garlic seed box (3). A main drive sprocket (22) is mounted on the sprocket shaft (21). A sprocket protection box (23) is provided on one side of the main drive sprocket (22).

2. The garlic planter as described in claim 1, characterized in that, There are multiple U-shaped rods, and each U-shaped rod corresponds to one of the multiple seeding chains (19).

3. The garlic planter as described in claim 1, characterized in that, The garlic seed box (3) is provided with a partition plate (14), which divides the inner cavity of the garlic seed box (3) into a loading cavity (3a) and a sowing cavity (3b). The partition plate (14) has several connecting holes (15) that connect the loading cavity (3a) and the sowing cavity (3b). The sowing chain (19) takes seeds through the sowing cavity (3b).

4. The garlic planter as described in claim 3, characterized in that, A slide plate (16) is longitudinally slidably installed on the partition plate (14). The slide plate (16) moves longitudinally to adjust the opening of the connecting hole (15). The upper part of the slide plate (16) is provided with a longitudinal guide hole (16c). A positioning device passes through the guide hole (16c). The positioning device includes a fastening knob (18) connected to the partition plate (14).

5. The garlic planter as described in claim 1, characterized in that, The sprocket protection box (23) includes an arc-shaped portion covering one side of the main drive sprocket (22) and extension portions located on both sides of the arc-shaped portion. The extension portions are provided with through holes, which are connected to the frame (2) by means of a fixed shaft.

6. The garlic planter as described in claim 1, characterized in that, The pressure roller (7) is driven by the main drive sprocket (22) via a gearbox (8). A first transmission device is provided between the pressure roller (7) and the input sprocket of the gearbox (8), and a second transmission device is provided between the output sprocket (9) of the gearbox (8) and the main drive sprocket (22). The first transmission device includes a first sprocket on one side of the pressure roller (7), a first auxiliary sprocket and a second auxiliary sprocket at the lower end of the gearbox (8). The first sprocket and the first auxiliary sprocket are connected by a chain. The first auxiliary sprocket and the second auxiliary sprocket are coaxially arranged, and the second auxiliary sprocket is connected to the input sprocket of the gearbox (8) by a chain. The second transmission device includes a second sprocket (10) sleeved on the sprocket shaft (21). The output sprocket (9) of the gearbox (8) is connected to the second sprocket (10) by a chain. The second sprocket (10) rotates synchronously with the sprocket shaft (21).

7. The garlic planter as described in claim 1, characterized in that, The sowing spoon (20) is L-shaped. The sowing spoon (20) includes a base plate connected to the sowing chain (19) and a back plate perpendicular to the base plate. Both the base plate and the back plate are rectangular. The inner sides of the base plate and the back plate are provided with a spoon groove for holding garlic seeds. The chain box (6) has a rectangular passage cavity that is adapted to the back plate.

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