A rice transplanting device for experimental fields

Abstract

This invention provides a rice transplanting device for experimental fields. This device allows for batch planting of multiple rice varieties, enabling simultaneous transplanting of multiple rows, effectively improving transplanting efficiency and reducing labor costs. The transplanting device includes a frame body, a drive shaft, drive wheels, driven shafts, and driven wheels. A support platform is mounted on the frame body, with multiple guide channels on the platform. A drive assembly is also mounted on the support platform, and multiple grooving structures are located at the rear of the platform. Each grooving structure has a seedling placement structure above it and a backfilling structure at its rear. The drive unit moves the frame body, causing the grooving structures to open furrows. The drive assembly moves multiple rice seedlings, and the seedling placement structures plant the seedlings into the opened furrows. The backfilling structures then backfill the furrows, effectively improving transplanting efficiency and reducing labor costs.

Description

Technical Field

[0001] This invention relates to the field of rice technology, and more specifically to a rice transplanting device for experimental fields. Background Technology

[0002] Breeding has become a core element in achieving high and stable yields, high quality, and high efficiency in grain production.

[0003] Rice variety breeding is inseparable from field identification and evaluation. Typically, hundreds or even thousands of candidate rice varieties are planted in a paddy field, with each variety occupying approximately one square meter. To ensure the consistency and orderliness of each variety, breeders typically use traditional manual methods for transplanting these thousands of candidate varieties, planting each variety sequentially one by one. This method is time-consuming, labor-intensive, costly, has a low tolerance for error, and is inefficient. Summary of the Invention

[0004] This invention provides a rice transplanting device for experimental fields. This device can be used to plant multiple rice varieties in batches, realize multi-row one-time transplanting, effectively improve transplanting efficiency, and reduce labor costs.

[0005] The technical solution adopted in this invention is as follows: a rice transplanting device for experimental fields includes a frame body, a drive shaft is provided at the lower front end of the frame body and drive wheels are provided at both ends, a driven shaft is provided at the lower rear end of the frame body and driven wheels are provided at both ends, the drive shaft and the driven shaft are connected by transmission, a drive device is provided at the upper front end of the frame body and is driven by the drive shaft, and a support platform is provided at the middle and rear part of the frame body, the support platform includes a horizontal plate and an inclined plate, the rear end of the horizontal plate is connected to the upper end of the inclined plate and the connection is designed with rounded corners;

[0006] The support platform is provided with multiple guide channels through a first spacing adjustment structure. The shape of each guide channel matches the shape of the support platform. Each guide channel consists of two identical guide baffles. The multiple guide channels are used to hold rice seedlings.

[0007] A drive assembly is provided on the horizontal plate, which is used to drive the rice seedlings to move from front to back along the corresponding guide groove.

[0008] Multiple slotted structures are provided behind the inclined plate. The number of multiple slotted structures is the same as the number of multiple guide channels and they correspond one-to-one. The multiple slotted structures are set at the rear end of the vehicle frame body through a second spacing adjustment structure.

[0009] Each slotted structure is equipped with a seedling release structure above it and located at the lower end of the inclined plate. All of the seedling release structures are connected to the driven shaft via a transmission.

[0010] Each slotted structure has a backfill structure at its rear end, which is used to backfill the trenches created by the corresponding slotted structure.

[0011] Furthermore, the drive assembly includes a first roller, a second roller, and a headless conveyor belt;

[0012] The horizontal plate has a first rectangular opening in the middle and rear part. The first roller and the second roller are respectively mounted on the frame body by mounting columns and are located on the front and rear sides below the first rectangular opening. The first roller and the second roller are connected by an upper headless conveyor belt and the upper surface of the upper headless conveyor belt is flush with the upper surface of the horizontal plate.

[0013] The left and right ends of the first roller are connected to the left and right ends of the second roller respectively via a chain drive structure;

[0014] A first rotating shaft is provided below the first roller. The first rotating shaft is connected to the driven shaft through a chain drive structure. Drive gears are respectively sleeved on the left and right ends of the first rotating shaft, and driven gears are respectively sleeved on the left and right ends of the first roller. The drive gears mesh with the driven gears on the corresponding sides.

[0015] Furthermore, the slotted structure includes a slotted end and two mudguards;

[0016] The longitudinal section of the slotted end is a right-angled triangle and its height gradually increases from front to back;

[0017] The two mudguards are symmetrically arranged on the left and right edges of the rear end face of the slotted end, and the two mudguards are telescopic plates with the same structure.

[0018] Each mudguard includes a first baffle and a second baffle. The front end of the first baffle is fixedly mounted on the rear end face of the slotted end. The front end face of the second baffle is provided with a sliding groove that is adapted to the first baffle. The rear end of the first baffle extends into the sliding groove. The front end of the outer wall of the second baffle is provided with a first tightening bolt.

[0019] Furthermore, the second spacing adjustment structure includes a first fixing rod;

[0020] Each slot end has a fixed ring fixedly installed on the upper end of the inclined surface. Multiple fixed rings are sleeved on the first fixed rod, and each fixed ring is equipped with a second tightening bolt.

[0021] The first fixing rod is provided with L-shaped connecting rods at both ends. The upper end of the L-shaped connecting rod is fitted with a sleeve that is compatible with it. The upper end of the sleeve is fixedly mounted on the frame body. A third tightening bolt is provided between the upper end of the L-shaped connecting rod and the sleeve.

[0022] Furthermore, the rice seedling releasing structure includes a first circular pressing plate and a second circular pressing plate, and a connecting pipe is provided between the first circular pressing plate and the second circular pressing plate, with both ends of the connecting pipe passing through the first circular pressing plate and the second circular pressing plate respectively;

[0023] Multiple conical protrusions are provided at the edge of the left side surface of the first circular pressure plate and at the edge of the right side surface of the second circular pressure plate;

[0024] It also includes a lead screw, both ends of which are set at the rear ends of two L-shaped connecting rods via first connecting rods, and both ends of the lead screw are connected to the two first connecting rods via bearings;

[0025] Multiple seedling releasing structures are all fitted onto the screw rod, and each seedling releasing structure has a fixing nut on both the left and right sides that is compatible with the screw rod;

[0026] The left and right ends of the lead screw are connected to the left and right ends of the driven shaft via chain drive structures.

[0027] Furthermore, the landfill structure includes two backfill scrapers;

[0028] The upper sidewalls of the two backfill scrapers are each provided with a fixing strip. One end of the two fixing strips is set on the corresponding backfill scraper, and the other end of the two fixing strips is set on the rear end of the upper sidewalls of the two second baffles by fastening bolts. The two backfill scrapers are arranged in a V-shape and the distance between the front ends is greater than the distance between the rear ends.

[0029] Furthermore, the first spacing adjustment structure includes a support rod, both ends of which are mounted on the vehicle frame body via mounting posts;

[0030] Each guide channel is equipped with a slider at its front end, and each slider is equipped with a sliding hole that matches the support rod. Multiple sliders are fitted onto the support rod.

[0031] Each slider is equipped with a fourth tightening bolt.

[0032] Furthermore, a second rectangular opening is provided in the lower middle part of the inclined plate;

[0033] A roller is provided inside the second rectangular opening. The diameter of the roller is smaller than the width of the second rectangular opening and is tangent to the upper surface of the inclined plate. The left and right ends of the roller are respectively mounted on the sleeve by fixed crossbars.

[0034] The left and right ends of the roller shaft are connected to the left and right ends of the first drum respectively through a chain drive structure;

[0035] The roller has multiple tapered protrusions on its sidewall.

[0036] Furthermore, handlebars are symmetrically arranged at the front end of the frame body.

[0037] The beneficial effects of this invention are as follows:

[0038] The vehicle frame is moved by a drive unit, which drives multiple grooving structures to open trenches during the movement. Multiple rice seedlings can be placed at once through multiple guide channels. The drive component drives the multiple rice seedlings to move along the corresponding guide channels. Multiple seedling placement structures plant the multiple rice seedlings into the opened trenches. Then, the trenches are backfilled by the set filling structure to ensure that the rice seedlings are completely fixed and achieve the purpose of transplanting. Multiple rows of rice seedlings of one variety can be transplanted at once, which effectively improves the efficiency of transplanting and reduces the input of labor costs. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a rice transplanting device for experimental fields according to the present invention;

[0040] Figure 2 This is a right view of the rice transplanting device for experimental fields described in this invention;

[0041] Figure 3 This is a structural schematic diagram of the combination of the support platform, drive assembly, driven wheel, roller shaft, etc. described in this invention;

[0042] Figure 4 This is a schematic diagram of the structure of the combination of the drive assembly, driven wheel, roller, and first rotating shaft described in this invention;

[0043] Figure 5 This is a schematic diagram of the support platform described in this invention;

[0044] Figure 6 This is a structural diagram of the combination of the driving component, the slotting structure, the seedling releasing structure, and the burying structure described in this invention;

[0045] Figure 7 This is a schematic diagram of the combination of the roller shaft, grooving structure, seedling release structure, and burying structure described in this invention;

[0046] Figure 8 This is a schematic diagram of the combination of the slotted structure and the landfill structure described in this invention;

[0047] Figure 9 This is a schematic diagram of the seedling release structure described in this invention;

[0048] Figure 10 This is a structural schematic diagram of the combination of the support platform, the guide channel, and the first spacing adjustment structure described in this invention;

[0049] Figure 11This is a schematic diagram of the power connection of the drive shaft, driven shaft, first roller, second roller, lead screw, first rotating shaft, and roller shaft described in this invention;

[0050] Figure 12 This is a schematic diagram of the structure of the rice seedling strip described in this invention;

[0051] Explanation of markings in the diagram: 1. Chassis body; 2. Drive shaft; 3. Drive wheel; 4. Driven shaft; 5. Driven wheel; 6. Drive unit; 7. Support platform; 7. Horizontal plate; 71. Inclined plate; 72. Guide channel; 8. Guide baffle; 81. Grooved structure; 9. Grooved end; 91. Mudguard; 92. First baffle; 921. Second baffle; 922. Rice seedling release structure; 10. First circular pressure plate; 101. Second circular pressure plate; 102. Connecting pipe; 103. Landfill structure; 11. Backfill scraper; 111. First roller; 12. Second roller. 13. Headless conveyor belt; 14. First rectangular opening; 15. Mounting column; 16. First rotating shaft; 17. Drive gear; 18. Driven gear; 19. First fixing rod; 20. Fixing ring; 21. Fixing strip; 22. L-shaped connecting rod; 23. Sleeve; 24. Conical protrusion; 25. Lead screw; 26. First connecting rod; 27. Support rod; 28. Mounting column; 29. ​​Slider; 30. Second rectangular opening; 31. Roller shaft; 32. Fixing crossbar; 33. Handle bar; 34. Fastening bolt; 35. Rice seedling strip; 36. Hole; 37. Detailed Implementation

[0052] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] It should be noted that all directional indicator terms such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" in the embodiments of this application indicate the orientation or positional relationship based on the patient's orientation or positional relationship. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. They are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0054] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0056] like Figure 1-12 As shown, a rice transplanting device for experimental fields includes a frame body 1. A drive shaft 2 is provided at the lower front end of the frame body 1, and drive wheels 3 are provided at both ends. The drive shaft 2 is fixed to the frame body 1 by bushings. A driven shaft 4 is provided at the lower rear end of the frame body 1, and driven wheels 5 are provided at both ends. The drive shaft 2 and the driven shaft 4 are connected by a transmission. The connection can be made using an existing chain drive structure or other transmission connection methods. A drive device 6 is provided at the upper front end of the frame body 1 and is driven by the drive shaft 2. The drive device 6 can be a gasoline engine or an electric motor, etc. A support platform 7 is provided in the middle and rear part of the frame body 1. The support platform 7 includes a horizontal plate 71 and an inclined plate 72. The rear end of the horizontal plate 71 is connected to the upper end of the inclined plate 72, and the connection is rounded. The purpose of the rounded corner design is to allow the rice seedlings 36 to transition higher from the horizontal plate 71 to the inclined plate 72.

[0057] The support platform 7 is provided with multiple guide channels 8 through a first spacing adjustment structure. The spacing between the multiple guide channels 8 can be adjusted by the first spacing adjustment structure to meet the row spacing requirements of different rice varieties. The shape of each guide channel 8 matches the shape of the support platform 7. Each guide channel 8 is composed of two identical guide baffles 81. The multiple guide channels 8 are used to hold rice seedlings 36. It should be noted that the rice seedlings 36 are usually long strips, made of flexible, water-retaining, and biodegradable material. The rice seedlings 36 are provided with several holes 37. The number of rice seedlings can be propagated in several holes 37 according to a certain plant spacing. The length of the rice seedlings 36 is selected according to the actual situation and is not limited here.

[0058] A driving component is provided on the horizontal plate 71, which is used to drive the rice seedlings 36 to move from front to back along the corresponding guide groove 8.

[0059] A plurality of slotted structures 9 are provided behind the inclined plate 72. The number of slotted structures 9 is the same as the number of guide channels 8 and they correspond one-to-one. The plurality of slotted structures 9 are set at the rear end of the frame body 1 through a second spacing adjustment structure. The spacing between the plurality of slotted structures 9 can be adjusted through the second spacing adjustment structure to facilitate maintaining a one-to-one correspondence with the plurality of guide channels 8.

[0060] Each slotted structure 9 is equipped with a seedling release structure 10 above it and located at the lower end of the inclined plate 72. The multiple seedling release structures 10 are all connected to the driven shaft 4 for transmission. The seedling release structure 10 gradually plants the rice seedlings 36 in the corresponding guide trough 8 into the slotted trough without manual intervention, effectively reducing the input of labor.

[0061] Each slotted structure 9 has a backfilling structure 11 at its rear end. The backfilling structure 11 is used to backfill the trenches created by the corresponding slotted structure 9. The backfilling structure 11 backfills the trenches where rice seedlings 36 are planted, ensuring that the rice seedlings 36 are completely fixed to achieve the purpose of transplanting. It should be noted that the drive component, slotted structure 9, seedling release structure 10, and backfilling structure 11 are all carried out in an orderly and synchronous manner.

[0062] like Figure 3-6 , Figure 11 As shown, in this embodiment, preferably, the drive assembly includes a first roller 12, a second roller 13, and a headless conveyor belt 14;

[0063] The horizontal plate 71 has a first rectangular opening 15 at its middle and rear. The first roller 12 and the second roller 13 are respectively mounted on the frame body 1 via mounting columns 16 and are located on the front and rear sides below the first rectangular opening 15. That is, the rotating shafts at the left and right ends of the first roller 12 extend through the upper end of the mounting column 16 to the outer side of the corresponding mounting column 16 and are connected by bearings. The second roller 13 is similar. The first roller 12 and the second roller 13 are connected by an upper headless conveyor belt 14. The upper surface of the headless conveyor belt 14 is flush with the upper surface of the horizontal plate 71. The outer surface of the headless conveyor belt 14 can be provided with multiple protrusions to increase friction and further ensure that the rice seedlings 36 can be pushed backward.

[0064] The left and right ends of the first roller 12 are connected to the left and right ends of the second roller 13 by a chain drive structure. The chain drive structure is existing technology with a wide range of applications, and will not be described in detail here. The chain drive structure enables the first roller 12 and the second roller 13 to rotate synchronously.

[0065] A first rotating shaft 17 is disposed below the first roller 12. Both ends of the first rotating shaft 17 pass through the mounting columns 16 on both sides. Both ends of the first rotating shaft 17 are connected to the mounting columns 16 on both sides via bearings. The first rotating shaft 17 is connected to the driven shaft 4 via a chain drive structure, preferably two of them. Drive gears 18 are respectively fitted onto the left and right ends of the first rotating shaft 17, and driven gears 19 are respectively fitted onto the left and right ends of the first roller 12. The drive gears 18 mesh with the corresponding driven gears 19. The drive device 6 drives the drive shaft 2 to rotate, which in turn drives the driven shaft 4 to rotate. The driving shaft 4 drives the first rotating shaft 17 to rotate via a chain drive structure, which in turn drives two driving gears 18. The two driving gears 18 are driven by the driven gears 19 and rotate in opposite directions, that is, the driving gears 18 rotate clockwise and the driven gears 19 rotate counterclockwise. The driven gears 19 then drive the first roller 12. The first roller 12 drives the second roller 13 to rotate synchronously via a chain drive structure, causing the headless conveyor belt 14 to rotate counterclockwise, which in turn drives the rice seedlings 36 to slide backward along the corresponding guide groove 8. It should be noted that the tooth ratio of the driving gears 18 and driven gears 19, as well as the tooth ratio of the two sprockets in the chain drive structure, are specified according to actual needs.

[0066] like Figure 6-8 As shown, in this embodiment, preferably, the slotted structure 9 includes a slotted end 91 and two mudguards 92. The height of the slotted end 91 and the two mudguards 92 can be determined according to actual needs and is not limited here.

[0067] The longitudinal section of the slotted end 91 is a right-angled triangle and the height gradually increases from front to back. This design makes it easier for the front end of the slotted end 91 to enter the soil to make a slot.

[0068] The two mudguards 92 are symmetrically arranged on the left and right edges of the rear end face of the slot end 91. The two mudguards 92 are telescopic plates with the same structure. The slot end 91 divides the soil in the trench to both sides. The two mudguards 92 temporarily block the separated soil to avoid backfilling. The telescopic plates can adjust the length of the mudguards 92 to meet different needs.

[0069] Preferably, each mudguard 92 includes a first baffle 921 and a second baffle 922. The front end of the first baffle 921 is fixedly disposed on the rear end face of the slotted end 91. The front end face of the second baffle 922 is provided with a sliding groove adapted to the first baffle 921. The rear end of the first baffle 921 extends into the sliding groove. The front end of the outer wall of the second baffle 922 is provided with a first tightening bolt (not shown in the figure). By loosening the first tightening bolt, the first baffle 921 and the second baffle 922 can be pulled relative to each other or in opposite directions to adjust the length of the entire mudguard 92. The first tightening bolt is used to limit the relative sliding between the first baffle 921 and the second baffle 922. This is a common limiting method and will not be described in detail here.

[0070] like Figure 6 , Figure 7 As shown, in this embodiment, preferably, the second spacing adjustment structure includes a first fixing rod 20;

[0071] Each slotted end 91 has a fixed ring 21 fixedly installed on the upper end of the inclined surface. Multiple fixed rings 21 are sleeved on the first fixed rod 20. Each fixed ring 21 is provided with a second tightening bolt (not shown in the attached figure). Loosening the second tightening bolt allows the corresponding fixed ring 21 to slide along the first fixed rod 20, thereby adjusting the spacing between multiple slotted structures 9. After adjustment, the second tightening bolt can be tightened. This is a common limiting method and will not be described in detail here.

[0072] Both ends of the first fixing rod 20 are provided with L-shaped connecting rods 23. The upper end of the L-shaped connecting rod 23 is fitted with a sleeve 24 that is compatible with it. The upper end of the sleeve 24 is fixedly mounted on the frame body 1. A third tightening bolt (not shown in the figure) is provided between the upper end of the L-shaped connecting rod 23 and the sleeve 24. The L-shaped connecting rod 23 and the sleeve 24 are fixed together by the third tightening bolt. This is a common limiting method and will not be described in detail here. This allows multiple slotted structures 9 to be fixed together with the frame body 1. In addition, by loosening the third tightening bolt, the relative length of the L-shaped connecting rod 23 and the sleeve 24 can be adjusted, thereby realizing the depth of the slotted structure 9 into the soil. This allows for the adjustment of the depth of the trench to meet the different depth requirements of different rice varieties. The slotted structure 9, the seedling laying structure 10, and the burying structure 11 can also be disassembled as a whole by loosening the third tightening bolt for easy transportation.

[0073] like Figure 6 , Figure 7 , Figure 9 As shown, in this embodiment, preferably, the rice seedling release structure 10 includes a first circular pressing plate 101 and a second circular pressing plate 102. A connecting pipe 103 is provided between the first circular pressing plate 101 and the second circular pressing plate 102. The two ends of the connecting pipe 103 pass through the first circular pressing plate 101 and the second circular pressing plate 102 respectively. The distance between the first circular pressing plate 101 and the second circular pressing plate 102 is greater than the width of the rice seedling strip 36.

[0074] Multiple conical protrusions 25 are provided at the edge of the left side surface of the first circular pressure plate 101 and the edge of the right side surface of the second circular pressure plate 102. The distance between any two opposite conical protrusions 25 is less than the width of the rice seedling 36 and greater than the diameter of the hole 37 on the rice seedling 36, ensuring that when the first circular pressure plate 101 and the second circular pressure plate 102 rotate, the multiple conical protrusions 25 can press on the edge of the rice seedling 36 but will not press on the rice seedling.

[0075] It also includes a lead screw 26, both ends of which are set at the rear ends of two L-shaped connecting rods 23 via first connecting rods 27, and both ends of the lead screw 26 are connected to the two first connecting rods 27 via bearings;

[0076] Multiple seedling release structures 10 are all sleeved on the screw rod 26. Each seedling release structure 10 has a fixing nut on both the left and right sides that is compatible with the screw rod 26. The fixing nuts are not shown in the attached drawing. The seedling release structure 10 composed of the first circular pressure plate 101, the second circular pressure plate 102, and the connecting pipe 103 can be clamped and fixed on the screw rod 26 by the two fixing nuts to ensure that it rotates with the screw rod 26. The clamping and fixing method of the two fixing nuts is a common limiting method, which will not be described in detail here.

[0077] The left and right ends of the lead screw 26 are connected to the left and right ends of the driven shaft 4 through a chain drive structure. The rotation of the driven shaft 4 drives the lead screw 26 to rotate, and the rotation of the lead screw 26 drives the multiple seedling release structures 10 to rotate clockwise. During the rotation, multiple conical protrusions 25 are provided at the edge of the left side of the first circular pressure plate 101 and the edge of the right side of the second circular pressure plate 102, which can press the rice seedlings 36 into the corresponding grooves in sequence.

[0078] like Figure 6 , Figure 7 , Figure 8 As shown, in this embodiment, preferably, the landfill structure 11 includes two backfill scrapers 111;

[0079] Each of the two backfill scrapers 111 has a fixing strip 22 located in the middle of its upper sidewall. One end of each fixing strip 22 is attached to the corresponding backfill scraper 111, and the other ends are attached to the rear ends of the upper sidewalls of the two second baffles 922 by fastening bolts 35. The fastening bolts 35 can both fix the backfill scrapers 111 and allow adjustment of the included angle between the two backfill scrapers 111 to meet different needs if the fastening bolts 35 become loose. The two backfill scrapers 111 are arranged in a V-shape, and the distance between their front ends is greater than the distance between their rear ends. The distance between the ends of the two backfill scrapers 111 is slightly greater than the width of the rice seedlings 36. The soil divided into two sides by the front end of the trench 91 is gathered by the front end of the two backfill scrapers 111 and guided into the trench along the inner side of the two backfill scrapers 111, thus completing the backfilling and burying and fixing the rice seedlings 36. In addition, the V-shaped design of the two backfill scrapers 111 and the design that the distance between the rear end of the two backfill scrapers 111 is slightly greater than the width of the rice seedlings 36 can straighten the rice seedlings 36 and ensure that the seedlings are upright.

[0080] like Figure 10 As shown, in this embodiment, preferably, the first spacing adjustment structure includes a support rod 28, both ends of which are mounted on the frame body 1 via mounting posts 29.

[0081] Each guide channel 8 has a slider 30 at its front end, meaning that the front ends of the two guide baffles 81 are fixed on the corresponding slider 30. Each slider 30 has a sliding hole that matches the support rod 28, and multiple sliders 30 are fitted onto the support rod 28.

[0082] Each slider 30 is equipped with a fourth tightening bolt, which is not shown in the attached figure. When adjusting the spacing, simply loosen the fourth tightening bolt to allow the slider 30 to move along the support rod 28, thereby adjusting the spacing between the guide grooves 8. After adjustment, tighten the fourth tightening bolt. This is a common limiting method and will not be described in detail here.

[0083] like Figure 5 , Figure 6 , Figure 7 , Figure 10 As shown, in this embodiment, in order to further ensure that the rice seedlings 36 in the area of ​​the inclined plate 72 can slide smoothly down the inclined plate 72, a second rectangular opening 31 is provided in the lower middle part of the inclined plate 72.

[0084] A roller 32 is provided inside the second rectangular opening 31. The diameter of the roller 32 is smaller than the width of the second rectangular opening 31 and is tangent to the upper surface of the inclined plate 72. Both the left and right ends of the roller 32 are mounted on the sleeve 24 through fixed crossbars 33. The left and right ends of the roller 32 are connected to the corresponding fixed crossbars 33 through bearings.

[0085] The left and right ends of the roller shaft 32 are connected to the left and right ends of the first roller 12 respectively through a chain drive structure. The first roller 12 drives the roller shaft 32 to rotate, thereby causing the roller shaft 32 to drive the rice seedlings 36 to slide downward along the inclined plate 72.

[0086] The roller 32 has multiple conical protrusions on its side wall (not shown in the figure). These conical protrusions increase the friction between the side wall of the roller 32 and the bottom of the rice seedling 36, further ensuring that the roller 32 drives the rice seedling 36 to slide.

[0087] like Figure 1 , Figure 2 As shown in this embodiment, in order to facilitate pulling the entire rice transplanter, the front end of the frame body 1 is symmetrically provided with handles 34, which can be used to easily pull and adjust the steering.

[0088] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A rice transplanting device for experimental fields, comprising a frame body (1), wherein a drive shaft (2) is provided below the front end of the frame body (1) and drive wheels (3) are respectively provided at both ends; a driven shaft (4) is provided below the rear end of the frame body (1) and driven wheels (5) are respectively provided at both ends; the drive shaft (2) and the driven shaft (4) are connected by transmission; and a drive device (6) is provided above the front end of the frame body (1) and is drivenly connected to the drive shaft (2), characterized in that: The frame body (1) is provided with a support platform (7) in the middle and rear part. The support platform (7) includes a horizontal plate (71) and an inclined plate (72). The rear end of the horizontal plate (71) is connected to the upper end of the inclined plate (72) and the connection is designed with rounded corners. The support platform (7) is provided with multiple guide channels (8) through the first spacing adjustment structure. The shape of each guide channel (8) matches the shape of the support platform (7). Each guide channel (8) is composed of two identical guide baffles (81). The multiple guide channels (8) are used to hold rice seedlings (36). A driving component is provided on the horizontal plate (71), which is used to drive the rice seedlings (36) to move from front to back along the corresponding guide groove (8); Multiple slotted structures (9) are provided behind the inclined plate (72). The number of multiple slotted structures (9) is the same as the number of multiple guide channels (8) and they correspond one-to-one. The multiple slotted structures (9) are set at the rear end of the frame body (1) through the second spacing adjustment structure. Each slotted structure (9) is provided with a seedling release structure (10) above it and located at the lower end of the inclined plate (72). The multiple seedling release structures (10) are all connected to the driven shaft (4) for transmission. Each slotted structure (9) has a backfill structure (11) at its rear end, which is used to backfill the trenches created by the corresponding slotted structure (9). The slotted structure (9) includes a slotted end (91) and two mudguards (92). The longitudinal section of the slotted end (91) is a right-angled triangle and its height gradually increases from front to back; The two mudguards (92) are symmetrically arranged on the left and right edges of the rear end face of the slotted end (91), and the two mudguards (92) are telescopic plates with the same structure. Each mudguard (92) includes a first baffle (921) and a second baffle (922). The front end of the first baffle (921) is fixedly disposed on the rear end face of the slotted end (91). The front end face of the second baffle (922) is provided with a sliding groove adapted to the first baffle (921). The rear end of the first baffle (921) extends into the sliding groove. The front end of the outer side wall of the second baffle (922) is provided with a first tightening bolt. The rice seedling release structure (10) includes a first circular pressing plate (101) and a second circular pressing plate (102). A connecting pipe (103) is provided between the first circular pressing plate (101) and the second circular pressing plate (102). The two ends of the connecting pipe (103) pass through the first circular pressing plate (101) and the second circular pressing plate (102) respectively. Multiple conical protrusions (25) are provided at the edge of the left side surface of the first circular pressure plate (101) and at the edge of the right side surface of the second circular pressure plate (102). It also includes a lead screw (26), both ends of which are set at the rear end of two L-shaped connecting rods (23) via first connecting rods (27), and both ends of the lead screw (26) are connected to the two first connecting rods (27) via bearings; Multiple seedling release structures (10) are fitted onto the screw rod (26), and each seedling release structure (10) has a fixing nut on both the left and right sides that is compatible with the screw rod (26); The left and right ends of the lead screw (26) are connected to the left and right ends of the driven shaft (4) respectively through a chain drive structure; The landfill structure (11) includes two backfill scrapers (111); The upper sidewall of the two backfill scrapers (111) is provided with a fixing strip (22). One end of the two fixing strips (22) is set on the corresponding backfill scraper (111), and the other end of the two fixing strips (22) is set on the rear end of the upper sidewall of the two second baffles (922) by fastening bolts (35). The two backfill scrapers (111) are arranged in a V shape and the distance between the front end is greater than the distance between the rear end.

2. The rice transplanting device for experimental fields according to claim 1, characterized in that: The drive assembly includes a first roller (12), a second roller (13), and a headless conveyor belt (14). The horizontal plate (71) has a first rectangular opening (15) in the middle and rear part. The first roller (12) and the second roller (13) are respectively mounted on the frame body (1) by mounting columns (16) and are located on the front and rear sides below the first rectangular opening (15). The first roller (12) and the second roller (13) are connected by an upper headless conveyor belt (14) and the upper surface of the upper headless conveyor belt (14) is flush with the upper surface of the horizontal plate (71). The left and right ends of the first roller (12) are connected to the left and right ends of the second roller (13) respectively through a chain drive structure; A first rotating shaft (17) is provided below the first roller (12). The first rotating shaft (17) is connected to the driven shaft (4) through a chain drive structure. Drive gears (18) are respectively sleeved on the left and right ends of the first rotating shaft (17). Drive gears (19) are respectively sleeved on the left and right ends of the first roller (12). The drive gears (18) and the driven gears (19) on the corresponding sides mesh with each other.

3. The rice transplanting device for experimental fields according to claim 2, characterized in that: The second spacing adjustment structure includes a first fixing rod (20); A fixing ring (21) is fixedly installed on the upper end of the inclined surface of each slot end (91). Multiple fixing rings (21) are sleeved on the first fixing rod (20). A second tightening bolt is installed on each fixing ring (21). The first fixing rod (20) is provided with L-shaped connecting rods (23) at both ends. The upper end of the L-shaped connecting rod (23) is fitted with a sleeve (24) that is compatible with it. The upper end of the sleeve (24) is fixedly mounted on the frame body (1). A third tightening bolt is provided between the upper end of the L-shaped connecting rod (23) and the sleeve (24).

4. A rice transplanting device for experimental fields according to claim 3, characterized in that: The first spacing adjustment structure includes a support rod (28), both ends of which are mounted on the frame body (1) via mounting posts (29); Each guide channel (8) is provided with a slider (30) at its front end. Each slider (30) is provided with a sliding hole that matches the support rod (28). Multiple sliders (30) are fitted onto the support rod (28). Each slider (30) is provided with a fourth tightening bolt.

5. A rice transplanting device for experimental fields according to claim 4, characterized in that: The lower middle part of the inclined plate (72) is provided with a second rectangular opening (31). A roller (32) is provided inside the second rectangular opening (31). The diameter of the roller (32) is smaller than the width of the second rectangular opening (31) and is tangent to the upper surface of the inclined plate (72). The roller (32) is mounted on the sleeve (24) by a fixed crossbar (33). The left and right ends of the roller shaft (32) are connected to the left and right ends of the first roller (12) respectively through a chain drive structure; The roller (32) has multiple tapered protrusions on its sidewall.

6. A rice transplanting device for experimental fields according to claim 5, characterized in that: Handlebars (34) are symmetrically arranged at the front end of the frame body (1).

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