A rice transplanter with adjustable seeding spacing

Abstract

The present invention discloses a rice transplanter with adjustable sowing spacing, which relates to the technical field of rice transplanters and comprises a frame, which is mounted on a traction device and has a plurality of slides mounted at the rear of the frame, wherein a rice transplanter for automatic rice transplanting is provided at the bottom end of the slide; a feeding mechanism comprises two conveyor belts symmetrically rotatably connected to the left and right sides of the frame, wherein a plurality of groups of vertically distributed storage components are provided between the two conveyor belts; two adjacent groups of storage components are connected to each other, and the storage components at the left and right sides are respectively connected to the conveyor belts at the left and right sides; a feeding component is provided on the slide, and the feeding component is used for transferring the seedlings stored on the storage component to the slide; drive components are provided at the left and right sides of the frame, and the drive components are used for driving the plurality of feeding components and the two conveyor belts to operate in sequence; the present invention can maintain a specific distance between the seedlings transplanted by the rice transplanter by starting the distance adjustment mechanism, thereby effectively improving the growth condition of the seedlings.

Description

Technical Field

[0001] The invention relates to the technical field of rice transplanters, in particular to a rice transplanter with adjustable sowing spacing. Background Art

[0002] When planting rice seedlings, the seedlings need to be kept at a specific distance according to the type of rice seedlings and the size of the planting field, so as to better promote the growth of the rice seedlings. The existing rice transplanters do not have the function of automatically adjusting the spacing between the planted rice seedlings, which is inconvenient to use. In addition, when planting rice seedlings, some rice seedlings to be planted are usually placed on the rice transplanter. When the rice transplanter has planted the rice seedlings, the rice seedlings to be planted need to be manually placed on the planting position of the rice transplanter, which is inconvenient to operate. At the same time, when the planting field is too large, the rice transplanter is likely to use up the seedlings in the center of the field. At this time, it is necessary to manually enter the field to transport the seedlings, which is a waste of manpower. Summary of the Invention

[0003] The object of the present invention is to provide a rice transplanter with adjustable sowing spacing to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a rice transplanter with adjustable sowing spacing, comprising a frame, the frame being mounted on a traction device and having a plurality of slideways mounted behind the frame, the bottom ends of the slideways being provided with a rice transplanting device for automatic rice transplanting;

[0005] The frame is provided with a distance adjustment mechanism for adjusting the distance between two adjacent slideways;

[0006] The frame is provided with a feeding mechanism, which is used to automatically put the seedlings stored in the frame onto the slide when the seedlings on the slide are reduced;

[0007] The feeding mechanism includes two symmetrically rotatably connected conveyor belts on the left and right sides of the frame body, and several groups of vertically distributed storage components are provided between the two conveyor belts. The number of the storage components is equal to the number of slides. The storage components are used to store seedlings and always keep the seedling leaves facing upwards; the two adjacent groups of storage components are connected to each other and the storage components on the left and right sides are respectively connected to the conveyor belts on the left and right sides; a feeding component is provided on the slide, and the feeding component is used to transfer the seedlings stored on the storage component to the slide; driving components are provided on the left and right sides of the frame, and the driving component is used to drive multiple feeding components and two conveyor belts to operate in sequence.

[0008] Preferably, the storage assembly includes a plurality of frames, in which a plurality of round rollers filling the frames are rotatably connected, the diameter of the round rollers is larger than the thickness of the frames and the distance between two adjacent round rollers is 1-2 mm; the frames of two adjacent groups are fixedly connected by two telescopic rods; a worm gear is fixedly connected to the frame close to the conveyor belt in the direction close to the conveyor belt; a bracket is fixedly connected to the conveyor belt at a position close to the worm gear, the worm gear is rotatably connected to the bracket and a worm is rotatably connected to the bracket, and the worm is engaged with the worm wheel; a rotating unit is provided at the upper and lower sides of the conveyor belt, and the rotating unit is used to drive the frame to rotate half a circle when the frame is transmitted along the arc portion of the conveyor belt.

[0009] Preferably, the rotating unit includes a semi-bevel gear ring; connecting frames are provided on the left and right sides of the frame body, and the two semi-bevel gear rings on the upper and lower sides of the same side are fixedly connected to the connecting frames; two mutually meshing bevel gears 1 and a bevel gear 2 are rotatably connected to the frame one, and the two bevel gears 1 are fixedly connected to the worm and the bevel gear 2 respectively; the bevel gear 2 meshes with the semi-bevel gear ring when transmitting along the conveyor belt.

[0010] Preferably, the driving assembly includes a telescopic rod 2 fixedly connected to the conveyor belt drive shaft, and the telescopic rod 2 is rotatably connected to the frame body; the connecting frame is rotatably connected to the telescopic parts of the upper and lower telescopic rods; the outer part of the frame body is rotatably connected to a gear fixedly connected to the upper telescopic rod 2, and a rack is meshed on the gear, and the rack is slidably connected to the frame body and a spring is connected between the rack and the frame body; the gear and the telescopic rod 2 are connected by a one-way bearing; the front part of the rack is fixedly connected to a cylinder 1; the upper rear position of the frame body is slidably connected to a support rod, and the rear end of the cylinder 1 is fixedly connected to the support rod.

[0011] Preferably, the portion outside the frame body is rotatably connected to a ratchet wheel fixedly connected to the second telescopic rod on the bottom side, the ratchet wheel is engaged with a pawl, and the pawl is fixedly connected to the frame body.

[0012] Preferably, the loading assembly includes a bracket second fixedly connected to the slide, a pull rod is slidably connected to the bracket second, and the rear end of the pull rod is slidably connected to the support rod; a pull plate is provided at the bottom front position of the pull rod, and two sliding rods are fixedly connected to the pull plate, and the two sliding rods are slidably connected to the pull rod; a sliding frame is provided on the pull rod, and two connecting rods are rotatably connected to the sliding frame, and the other ends of the two connecting rods are rotatably connected to the upper end parts of the two sliding rods; two clips are fixedly connected to the front side position of the pull rod, and the two clips are used to elastically clamp the sliding frame when it is in contact with the sliding frame; two wire take-ups are fixedly connected to the bracket second, a pull rope is fixedly connected to the wire take-up, and the front end part of the pull rope is fixedly connected to the sliding frame.

[0013] Preferably, the distance adjustment mechanism includes a bracket three fixedly connected to the frame body, and a plurality of drivers are slidably connected inside the bracket three, the number of the drivers is equal to the number of slides and the drivers are used to drive the slides to swing left and right; the driver output shaft is fixedly connected to the slide, and the front part of the slide is fixedly connected to a limit frame arranged at the left and right positions of a group of storage components, and the limit frame is gap-matched with multiple frames of the group of storage components; a scissors frame is provided at the bottom of the bracket three, and the scissors frame is composed of multiple groups of rods connected to each other crosswise and rotationally; a driving rod one is fixedly connected to the bottom of the driver, and the middle cross part of the scissors frame is rotatably connected to the driving rod one; a telescopic component is provided on the bracket three, and the telescopic component is used to drive the scissors frame to extend or shorten.

[0014] Preferably, the telescopic assembly includes a cylinder 2 fixedly connected to a bracket 3, the cylinder 2 having two telescopic ends and both telescopic ends of the cylinder 2 are fixedly connected to a drive rod 2; the two drive rods 2 are respectively rotatably connected to the cross parts on the front and rear sides of the middle part of the scissors frame.

[0015] Preferably, a water tank is fixedly connected above the frame, and a plurality of nozzles are provided at the bottom of the water tank. The nozzles are fixedly connected to the frame and communicated with the water tank.

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

[0017] The present invention drives two driving rods 2 to move closer to each other by starting cylinder 2, and the scissor frame begins to extend. The scissor frame drives multiple driving rods 1 connected to it to move, and the distance between two adjacent driving rods 1 remains unchanged and increases together. The driving rod 1 drives the driver and the transplanting equipment to move, and the driver drives the slide to move, thereby ensuring that the distance between the seedlings transplanted by the equipment increases.

[0018] The present invention can automatically transfer the seedlings on a group of storage components located in front of each slide to the slide through the loading component. After the seedlings on each group of storage components are transferred to each slide respectively, the seedlings on the slide are replenished, so that the planting of seedlings can be maintained continuously. After the seedlings are replenished, the conveyor belt will drive multiple groups of storage components to transmit, and the storage components will drive the next part of the seedlings to the loading position, which is convenient for the next loading. A large number of seedlings can be stored at one time through multiple groups of storage components, which can effectively reduce the number of times of manual replenishment of seedlings and effectively save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the split structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the frame in the present invention;

[0023] Figure 5 Schematic diagram of the structure of the frame in the present invention;

[0024] Figure 6 It is a structural diagram of the storage mechanism of the present invention;

[0025] Figure 7 Schematic diagram of the disassembled structure of the storage mechanism in the present invention;

[0026] Figure 8 It is a structural schematic diagram of the rotating mechanism in the present invention;

[0027] Figure 9 Schematic diagram of the conveyor belt transmission process in the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the separation of the feeding assembly and the slideway in the present invention;

[0029] Figure 11 It is a structural schematic diagram of the feeding assembly in the present invention;

[0030] Figure 12 This is a schematic diagram of the structure of the separation of the distance adjustment mechanism and the slideway in the present invention;

[0031] Figure 13 Schematic diagram of the structure of the slideway in the present invention;

[0032] Figure 14 It is a structural schematic diagram of the scissor stand in the present invention.

[0033] In the accompanying drawings: 1. frame; 2. slide; 3. rice transplanting equipment; 4. conveyor belt; 5. frame; 6. roller; 7. telescopic rod 1; 8. worm gear; 9. bracket 1; 10. worm; 11. semi-bevel gear ring; 12. connecting frame; 13. bevel gear 1; 14. bevel gear 2; 15. telescopic rod 2; 16. gear; 17. rack; 18. spring; 19. cylinder 1; 20. support rod; 21. ratchet; 22. pawl; 23. bracket 2; 24. pull rod; 25. pull plate; 26. slide rod; 27. sliding frame; 28. connecting rod; 29. buckle; 30. take-up device; 31. pull rope; 32. bracket 3; 33. driver; 34. limit frame; 35. scissors frame; 36. drive rod 1; 37. cylinder 2; 38. drive rod 2; 39. water tank; 40. nozzle. DETAILED DESCRIPTION

[0034] See also Figures 1-14The present invention provides a technical solution: a rice transplanter with adjustable sowing spacing, comprising a frame 1, the frame 1 being mounted on a traction device and having a plurality of slideways 2 mounted behind the frame 1, a rice transplanting device 3 for automatic rice transplanting being provided at the bottom end of the slideway 2;

[0035] The frame 1 is provided with a distance adjustment mechanism for adjusting the distance between two adjacent slideways 2;

[0036] A feeding mechanism is provided in the frame 1, and the feeding mechanism is used to automatically put the seedlings stored in the frame 1 onto the slide 2 when the seedlings on the slide 2 are reduced;

[0037] The feeding mechanism includes two symmetrically rotatably connected conveyor belts 4 on the left and right sides of the frame 1. A number of groups of vertically distributed storage components are provided between the two conveyor belts 4. The number of storage components is equal to the number of slides 2. The storage components are used to store seedlings and always keep the seedling leaves facing upwards; the two adjacent groups of storage components are connected to each other, and the storage components on the left and right sides are respectively connected to the conveyor belts 4 on the left and right sides; a feeding component is provided on the slide 2, and the feeding component is used to transfer the seedlings stored on the storage component to the slide 2; a driving component is provided on both the left and right sides of the frame 1, and the driving component is used to drive multiple feeding components and the two conveyor belts 4 to operate in sequence;

[0038] See when working Figure 1-Figure 3 When the rice transplanter is working, the prepared seedlings are placed on the slide 2 in sequence, and then the frame 1 is pulled forward by the traction device. While the frame 1 is moving, the rice transplanting device 3 is started to continuously transplant the seedlings on the slide 2 into the field. When transplanting, the distance between each seedling needs to be adjusted to a suitable distance according to the type of seedlings and the size of the field. By starting the distance adjustment mechanism, the seedlings transplanted by the rice transplanting device 3 can maintain a specific distance, thereby effectively improving the growth of the seedlings.

[0039] As the transplanting device 3 continues to operate, the number of seedlings on the slide 2 will gradually decrease. At this time, the driving component is started, and the driving component can successively drive the loading component and the two conveyor belts 4 to operate; the loading component can automatically transfer the seedlings on a group of storage components located in front of each slide 2 to the slide 2. After the seedlings on each group of storage components are transferred to each slide 2, the seedlings on the slide 2 are replenished, so that the planting of seedlings can be continuously maintained;

[0040] When the seedlings at the loading position on a group of storage components are missing, the driving component drives the two conveyor belts 4 to run, and the conveyor belts 4 will drive multiple groups of storage components to transmit, and the storage components will drive the next part of the seedlings to the loading position to facilitate the next loading; a large number of seedlings can be stored at one time through multiple groups of storage components, which can effectively reduce the number of times of manual replenishment of seedlings and effectively save manpower.

[0041] As a further embodiment of the present invention, the storage assembly includes a plurality of frames 5, in which a plurality of rollers 6 that fill the frames 5 are rotatably connected. The diameter of the rollers 6 is greater than the thickness of the frames 5, and the distance between adjacent rollers is 1-2 mm. Two adjacent groups of frames 5 are fixedly connected by two telescopic rods 7. A worm gear 8 is fixedly connected to the frame 5 near the conveyor belt 4 in a direction close to the conveyor belt 4. A bracket 9 is fixedly connected to the conveyor belt 4 near the worm gear 8. The worm gear 8 is rotatably connected to the bracket 9, and a worm 10 is rotatably connected to the bracket 9, and the worm 10 is meshed with the worm gear 8. Rotating units are provided on both upper and lower sides of the conveyor belt 4. The rotating units are used to drive the frame 5 to rotate half a circle when the frame 5 is transmitted along the arc portion of the conveyor belt 4.

[0042] The rotating unit includes a semi-bevel gear ring 11; connecting frames 12 are provided on both the left and right sides of the frame 1, and the upper and lower semi-bevel gear rings 11 on the same side are fixedly connected to the connecting frame 12; two mutually meshing bevel gears 13 and a bevel gear 2 14 are rotatably connected to the bracket 1 9, and the two bevel gears 13 are fixedly connected to the worm 10 and the bevel gear 2 14 respectively; the bevel gear 2 14 meshes with the semi-bevel gear ring 11 when it is driven along the conveyor belt 4;

[0043] See when working Figure 5-Figure 9 , the worm wheel 8 is locked by the worm 10, which can ensure that the frame 5 always remains in a stable state when the conveyor belt 4 is transmitted, so that the seedlings placed on the multiple rollers 6 in the frame 5 can be stably supported; because when the conveyor belt 4 transmits the frame 5 to the arc part of the conveyor belt 4, the frame 5 will deflect, which will cause the seedlings in this part to fall; in order to prevent the seedlings from falling, when the conveyor belt 4 drives the frame 5 to transmit to the arc part of the conveyor belt 4, the bevel gear 2 14 of this part begins to engage with the semi-bevel gear ring 11. As the conveyor belt 4 continues to transmit, the bevel gear 2 14 starts to drive the two bevel gears 1 13 to rotate under the action of the semi-bevel gear ring 11, one of the bevel gears 1 13 drives the worm 10 to rotate, and the worm 10 drives the worm wheel 8 to rotate. At this time, the frame 5 of this part follows the transmission belt transmission and itself will continue to rotate relative to the transmission belt; as the frame 5 continues to rotate, the frame 5 can always maintain a positive upward state, so that the frame 5 can always stably support the seedlings.

[0044] As a further solution of the present invention, the driving assembly includes a telescopic rod 2 15 fixedly connected to the transmission shaft of the conveyor belt 4, and the telescopic rod 2 15 is rotatably connected to the frame 1; the connecting frame 12 is rotatably connected to the telescopic parts of the telescopic rods 2 15 on the upper and lower sides; the outer part of the frame 1 is rotatably connected to a gear 16 fixedly connected to the upper telescopic rod 2 15, and a rack 17 is engaged with the gear 16, and the rack 17 is slidably connected to the frame 1 and a spring 18 is connected between the rack 17 and the frame 1; the gear 16 and the telescopic rod 2 15 are connected by a one-way bearing; the front part of the rack 17 is fixedly connected to a cylinder 19; the upper rear position of the frame 1 is slidably connected to a support rod 20, and the rear end of the cylinder 19 is fixedly connected to the support rod 20;

[0045] The outer portion of the frame 1 is rotatably connected to a ratchet 21 fixedly connected to the bottom telescopic rod 2 15, and a pawl 22 is engaged on the ratchet 21, and the pawl 22 is fixedly connected to the frame 1;

[0046] See when working Figure 4-Figure 5 When it is necessary to drive the conveyor belt 4, the cylinder 19 is extended by starting. The cylinder 19 will first push the support rod 20 to slide backward. When the support rod 20 slides to the rearmost position and stops moving, the cylinder 19 starts to push the rack 17 forward. When the rack 17 moves forward, it drives the gear 16 to rotate. The gear 16 drives the telescopic rod 2 15 connected to it to rotate through the one-way bearing, and the telescopic rod 2 15 drives the corresponding transmission belt to transmit; when the cylinder 19 contracts, the rack 17 automatically moves backward and resets under the action of the spring 18. When the rack 17 resets, the gear 16 cannot apply force to the conveyor belt 4 through the one-way bearing. In addition, under the action of the ratchet 21 and the pawl 22, the conveyor belt 4 can be effectively prevented from reverse transmission.

[0047] As a further solution of the present invention, the loading assembly includes a bracket 23 fixedly connected to the slide 2, and a pull rod 24 is slidably connected to the bracket 23, and the rear end of the pull rod 24 is slidably connected to the support rod 20; a pull plate 25 is provided at the bottom position in front of the pull rod 24, and two slide rods 26 are fixedly connected to the pull plate 25, and the two slide rods 26 are slidably connected to the pull rod 24; a sliding frame 27 is sleeved on the pull rod 24, and two connecting rods 28 are rotatably connected to the sliding frame 27, and the other ends of the two connecting rods 28 are respectively rotatably connected to the upper end parts of the two slide rods 26; two clips 29 are fixedly connected to the front side position of the pull rod 24, and the two clips 29 are used to elastically clamp the sliding frame 27 when it is in contact with the sliding frame 27; two wire take-ups 30 are fixedly connected to the bracket 23, and a pull rope 31 is fixedly connected to the wire take-up 30, and the front end part of the pull rope 31 is fixedly connected to the sliding frame 27;

[0048] See when working Figure 3-Figure 5 、 Figure 10-11When loading is required, the cylinder 19 is started to push the support rod 20 to move backward first, and the support rod 20 drives the multiple pull rods 24 connected thereto to move backward. The pull rod 24 drives the pull plate 25 to move backward through the two slide rods 26. When the pull plate 25 moves backward, it pulls the seedlings located at the loading position in front of the slide 2 onto the slide 2;

[0049] When the seedlings are completely pulled onto the slide 2, the pull rod 24 just drives the sliding frame 27 to move to the position where it fits with the bracket 23. As the support rod 20 drives the pull rod 24 to continue to move backward, the sliding frame 27 moves forward relative to the pull rod 24. The sliding frame 27 pushes the slide rod 26 upward through the connecting rod 28, and the push rod drives the pull plate 25 to move upward; when the front end of the pull rod 24 moves to the position where it fits with the sliding frame 27, the two buckles 29 on the pull rod 24 will lock the sliding frame 27, and the pull rod 24 cannot move further backward. At this time, the cylinder 19 starts to push the rack 17 to move;

[0050] The cylinder 19 drives the conveyor belt 4 by pushing the rack 17, and the conveyor belt 4 drives the next frame 5 and the seedlings on the frame 5 to move to the loading position. At this time, the cylinder 19 begins to retract, and the rack 17 will be reset first. After the rack 17 is reset, the cylinder 19 drives the support rod 20 to be reset; the support rod 20 drives multiple pull rods 24 to move forward. Since the pull plate 25 is in the upper position at this time, the pull plate 25 will move forward from above the seedlings at the loading position; when the pull rod 24 is completely reset, the pull rope 31 reaches its limit length and pulls the sliding frame 27 to disengage from the two buckles 29. After the sliding frame 27 is disengaged from the buckle 29, the pull plate 25 will automatically fall downward and be in front of the seedlings at the loading position;

[0051] When the pull plate 25 falls downward, the sliding frame 27 will move backward, and the pull rope 31 connected to the sliding frame 27 will become loose; the wire take-up shaft inside the wire take-up 30 is connected to the wire take-up 30 through an elastic member, so after the pull rope 31 becomes loose, the wire take-up 30 will automatically retract the excess pull rope 31 under the action of its internal elastic member.

[0052] As a further solution of the present invention, the distance adjustment mechanism includes a bracket three 32 fixedly connected to the frame body 1, and a plurality of drivers 33 are slidably connected inside the bracket three 32. The number of drivers 33 is equal to the number of slides 2, and the drivers 33 are used to drive the slides 2 to swing left and right; the output shaft of the driver 33 is fixedly connected to the slide 2, and the front part of the slide 2 is fixedly connected to a limit frame 34 arranged at the left and right positions of a group of storage components, and the limit frame 34 is clearance-matched with multiple frames 5 of the group of storage components; a scissor frame 35 is provided at the bottom of the bracket three 32, and the scissor frame 35 is composed of multiple groups of rods connected to each other crosswise and rotationally; a driving rod 1 36 is fixedly connected to the bottom of the driver 33, and the middle cross part of the scissor frame 35 is rotatably connected to the driving rod 1 36; a telescopic component is provided on the bracket three 32, and the telescopic component is used to drive the scissor frame 35 to extend or shorten;

[0053] The telescopic assembly includes a second cylinder 37 fixedly connected to the third bracket 32. The second cylinder 37 has two telescopic ends, and the two telescopic ends of the second cylinder 37 are fixedly connected to the second drive rod 38. The two second drive rods 38 are respectively rotatably connected to the cross parts on the front and rear sides of the middle part of the scissor frame 35.

[0054] A water tank 39 is fixedly connected to the top of the frame 1, and a plurality of nozzles 40 are provided at the bottom of the water tank 39. The nozzles 40 are fixedly connected to the frame 1 and are in communication with the water tank 39.

[0055] See when working Figure 6-7 、 Figure 10-14 When transplanting rice seedlings, it is necessary to start the driver 33 to drive the slide 2 to swing left and right. The slide 2 drives the seedlings on its surface to move back and forth, while the rice transplanting device 3 remains stationary and the seedlings on the slide 2 can be transplanted back and forth into the field. When the spacing between the seedlings needs to be adjusted, the two driving rods 2 38 are driven to move closer to each other or away from each other by starting the cylinder 2 37 (hereinafter, the two driving rods 2 38 are taken as an example to move closer to each other). When the two driving rods 2 38 move closer to each other, the scissor frame 35 begins to extend, and the scissor frame 35 drives the multiple driving rods 1 36 connected to it to move. At this time, the distance between the two adjacent driving rods 1 36 remains unchanged and increases together.

[0056] The driving rod 1 36 drives the driver 33 and the transplanting device 3 to move, and the driver 33 drives the slide 2 to move, thereby ensuring that the distance between the seedlings transplanted by the device increases. Conversely, the contraction of the driving cylinder 2 37 can reduce the distance between the seedlings transplanted by the device.

[0057] During transplanting, the slide 2 swings left and right, which drives the limit frame 34 connected to it to move left and right. The limit frame 34 drives the multiple frames 5 located in front of the slide 2 to move left and right, so that the multiple frames 5 remain stationary relative to the slide 2, thereby ensuring that the seedlings can be stably transferred to the slide 2.

[0058] Since a group of storage components contains multiple frames 5, the seedlings will stay on the frames 5 for a long time when transplanting. The water tank 39 can replenish water for the seedlings on the frames 5 through the nozzles 40, thereby ensuring the activity of the seedlings. Since the slide 2 will drive the frames 5 to swing left and right with it, the seedlings on the frames 5 move left and right when the nozzles 40 spray water, which can effectively improve the effect of replenishing water for the seedlings. At the same time, the left and right swinging of the seedlings can shake off the excess water droplets on the upper part of the seedlings, replenishing water to the seedlings on the lower side.

Claims

1. A rice transplanter with adjustable sowing spacing, comprising a frame (1), characterized in that: The frame (1) is mounted on a traction device and a plurality of slideways (2) are mounted behind the frame (1), wherein a transplanting device (3) for automatic transplanting is provided at the bottom end of the slideway (2); The frame (1) is provided with a distance adjustment mechanism for adjusting the distance between two adjacent slideways (2); A feeding mechanism is provided in the frame (1), and the feeding mechanism is used to automatically place the seedlings stored in the frame (1) onto the slide (2) when the number of seedlings on the slide (2) decreases; The feeding mechanism comprises two conveyor belts (4) symmetrically connected to the left and right sides of the frame (1), and a plurality of groups of vertically distributed storage components are provided between the two conveyor belts (4). The number of the storage components is equal to the number of the slides (2). The storage components are used to store the seedlings and always keep the seedling leaves facing upwards; two adjacent groups of storage components are connected to each other, and the storage components at the left and right sides are respectively connected to the conveyor belts (4) at the left and right sides; a feeding component is provided on the slide (2), and the feeding component is used to transfer the seedlings stored on the storage component to the slide (2); a driving component is provided on the left and right sides of the frame (1), and the driving component is used to drive the plurality of feeding components and the two conveyor belts (4) to operate in sequence; The storage assembly comprises a plurality of frames (5), wherein a plurality of round rollers (6) which fill the frames (5) are rotatably connected in the frames (5), wherein the diameter of the round rollers (6) is larger than the thickness of the frames (5) and the distance between two adjacent far rollers is 1-2 mm; the frames (5) of two adjacent groups are fixedly connected via two telescopic rods (7); a worm gear (8) is fixedly connected to the frame (5) close to the conveyor belt (4) in a direction close to the conveyor belt (4); a bracket (9) is fixedly connected to the conveyor belt (4) at a position close to the worm gear (8), the worm gear (8) is rotatably connected to the bracket (9), and a worm (10) is rotatably connected to the bracket (9), and the worm gear (10) is meshed with the worm gear (8); Rotating units are provided at both upper and lower sides of the conveyor belt (4), and the rotating units are used to drive the frame (5) to rotate half a circle when the frame (5) is driven along the arc portion of the conveyor belt (4); The loading assembly includes a bracket 2 (23) fixedly connected to the slideway (2), a pull rod (24) is slidably connected to the bracket 2 (23), a support rod (20) is slidably connected to the rear position of the frame body (1), and the rear end of the pull rod (24) is slidably connected to the support rod (20); a pull plate (25) is provided at the bottom position in front of the pull rod (24), and two sliding rods (26) are fixedly connected to the pull plate (25), and both of the two sliding rods (26) are slidably connected to the pull rod (24); a sliding frame (27) is provided on the pull rod (24), and the sliding frame (27) is provided on the pull rod (24). Two connecting rods (28) are rotatably connected to the movable frame (27), and the other ends of the two connecting rods (28) are rotatably connected to the upper end portions of the two sliding rods (26) respectively; two clips (29) are fixedly connected to the front side of the pull rod (24), and the two clips (29) are used to elastically clamp the sliding frame (27) when it is in contact with the sliding frame (27); two wire take-ups (30) are fixedly connected to the second bracket (23), and a pull rope (31) is fixedly connected to the inside of the wire take-up (30), and the front end portion of the pull rope (31) is fixedly connected to the sliding frame (27); The distance adjustment mechanism includes a bracket three (32) fixedly connected to the frame body (1), and a plurality of drivers (33) are slidably connected inside the bracket three (32), the number of the drivers (33) is equal to the number of the slides (2), and the drivers (33) are used to drive the slides (2) to swing left and right; the output shaft of the driver (33) is fixedly connected to the slides (2), and the front of the slides (2) is fixedly connected to a limit frame (34) arranged at the left and right positions of a group of storage components, and the limit frame (34) is clearance-matched with multiple frames (5) of the group of storage components; a scissor frame (35) is provided at the bottom of the bracket three (32), and the scissor frame (35) is composed of multiple groups of rods that are cross-rotatably connected to each other; a driving rod (36) is fixedly connected to the bottom of the driver (33), and the middle cross portion of the scissor frame (35) is rotatably connected to the driving rod (36); a telescopic component is provided on the bracket three (32), and the telescopic component is used to drive the scissor frame (35) to extend or shorten.

2. The rice transplanter with adjustable sowing spacing according to claim 1, characterized in that: The rotating unit includes a semi-conical gear ring (11); a connecting frame (12) is provided on both the left and right sides of the frame body (1), and the upper and lower semi-conical gear rings (11) on the same side are fixedly connected to the connecting frame (12); two mutually meshing bevel gears (13) and a bevel gear (14) are rotatably connected to the bracket (9), and the two bevel gears (13) are fixedly connected to the worm (10) and the bevel gear (14) respectively; the bevel gear (14) meshes with the semi-conical gear ring (11) when transmitting along the conveyor belt (4).

3. The rice transplanter with adjustable sowing spacing according to claim 2, characterized in that: The driving assembly includes a telescopic rod 2 (15) fixedly connected to the transmission shaft of the conveyor belt (4), and the telescopic rod 2 (15) is rotatably connected to the frame (1); the connecting frame (12) is rotatably connected to the telescopic parts of the telescopic rod 2 (15) on the upper and lower sides; the outer part of the frame (1) is rotatably connected to a gear (16) fixedly connected to the upper telescopic rod 2 (15), and a rack (17) is engaged with the gear (16), and the rack (17) is slidably connected to the frame (1) and a spring (18) is connected between the rack (17) and the frame (1); the gear (16) and the telescopic rod 2 (15) are connected via a one-way bearing; the front part of the rack (17) is fixedly connected to the cylinder 1 (19), and the rear end of the cylinder 1 (19) is fixedly connected to the support rod (20).

4. The rice transplanter with adjustable sowing spacing according to claim 3, characterized in that: The outer portion of the frame (1) is rotatably connected to a ratchet (21) fixedly connected to the second telescopic rod (15) on the bottom side, and a pawl (22) is engaged on the ratchet (21), and the pawl (22) is fixedly connected to the frame (1).

5. The rice transplanter with adjustable sowing spacing according to claim 1, characterized in that: The telescopic assembly includes a second cylinder (37) fixedly connected to a third bracket (32), wherein the second cylinder (37) has two telescopic ends and both telescopic ends of the second cylinder (37) are fixedly connected to a second driving rod (38); the two second driving rods (38) are respectively rotatably connected to the cross parts at the front and rear sides of the middle of the scissor frame (35).

6. The rice transplanter with adjustable sowing spacing according to claim 1, characterized in that: A water tank (39) is fixedly connected above the frame (1), and a plurality of nozzles (40) are provided at the bottom of the water tank (39). The nozzles (40) are fixedly connected to the frame (1) and are in communication with the water tank (39).

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