A rice transplanter with adaptive seedling depth adjustment function

Abstract

This invention discloses a rice transplanter with adaptive seedling depth adjustment function, belonging to the field of rice transplanter technology. To address the problems of uneven soil hardness and undulating terrain in the field, leading to varying seedling insertion depths and seedling tilting after insertion, the invention includes a support frame. A push-pull rod is installed within the support frame. Two seedling boxes are arranged opposite each other within the support frame, with seedling outlets extending through each box. A first drive component and a linkage component are also installed within the support frame, connected to the first drive component. Two dynamic adjustment components are arranged opposite each other within the linkage component. This invention facilitates dynamic adjustment of seedling insertion depth, ensuring that each seedling is inserted at the required depth, guaranteeing consistent depth, improving transplanting quality, and preventing the support frame from tilting, which could cause seedling tilting and affect transplanting quality.

Description

Technical Field

[0001] This invention relates to the field of rice transplanter technology, specifically to a rice transplanter with adaptive seedling depth adjustment function. Background Technology

[0002] Rice transplanters are agricultural equipment used to transplant rice seedlings during the rice planting process. Among them, the hand-held rice transplanter has become a widely used transplanting equipment due to its flexible operation, convenient steering, and adaptability to small fields and complex terrain. The hand-held rice transplanter is driven forward by the power system to drive the walking wheels, and after the seedling needles in the transplanting mechanism periodically take out the seedlings in the seed box, it inserts the seedlings into the soil in the field according to the preset trajectory to complete the transplanting operation.

[0003] Currently, the use of hand-held rice transplanters presents challenges due to the uneven distribution of soil hardness and the undulating terrain. This results in varying soil resistance during seedling insertion, leading to different insertion depths at different locations and impacting later rice growth. Furthermore, the uneven terrain causes the hand-held transplanter to tilt forward, backward, or sideways during operation, deviating the vertical insertion direction of the seedling needles. This results in the seedlings being inserted at an angle, affecting the stability of the seedling roots and soil, and further reducing transplanting quality.

[0004] To address the above issues, a rice transplanter with adaptive seedling depth adjustment function is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a rice transplanter with an adaptive adjustment function for seedling depth. By using this invention, the problems of uneven distribution of soil hardness and undulating terrain in the field, which lead to different seedling insertion depths, and uneven terrain causing seedlings to tilt after insertion, can be solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rice transplanter with adaptive seedling depth adjustment function includes a support frame, a push-pull rod inside the support frame, two seedling boxes opposite each other inside the support frame, each seedling box having a seedling outlet through it, a first drive component inside the support frame, a linkage component inside the support frame connected to the first drive component, two dynamic adjustment components opposite each other inside the linkage component, each dynamic adjustment component having a seedling needle on one side, a first detection component on one side of the seedling needle, first driving wheels fixedly connected to both ends of the first drive component, a second detection component installed inside the support frame, a second drive component on one side of the first driving wheel, a telescopic component slidably connected inside the first driving wheel, the telescopic component connected to the second drive component, and a lifting component inside the support frame.

[0008] Furthermore, the first drive assembly includes a mounting plate fixedly connected to the support frame, a motor mounted on one side of the mounting plate, a rotating shaft fixedly connected to the output end of the motor, a first gear fixedly connected to one end of the rotating shaft, several limit frames fixedly connected inside the support frame, a connecting shaft rotatably connected inside the limit frames, a second gear fixedly connected to the outer wall of the connecting shaft, the second gear meshing with the first gear, a first sprocket fixedly connected to the connecting shaft, and a chain drivingly connected to the first sprocket.

[0009] Furthermore, the linkage component includes a mounting rod fixedly connected to the support frame, a rotating seat rotatably connected inside the mounting rod, a second sprocket fixedly connected to one end of the rotating seat, the second sprocket being connected to a chain drive, a first connecting rod fixedly connected to the other end of the rotating seat, a second connecting rod rotatably connected to one end of the first connecting rod, two mounting seats opposite each other arranged inside the support frame, a third connecting rod rotatably connected to each of the two mounting seats, a fixing plate fixedly connected to one end of each of the two third connecting rods, and a second connecting rod rotatably connected to the fixing plate.

[0010] Furthermore, the dynamic adjustment component includes a fixed frame that is relatively fixedly connected to the fixed plate, an electric push rod installed inside the fixed frame, a slider fixedly connected to the movable end of the electric push rod, the slider being slidably connected to the fixed frame, and a seedling needle fixedly connected to one side of the slider, the seedling needle being slidably connected to the fixed frame.

[0011] Furthermore, the first detection component includes a mounting sleeve fixedly connected to one side of the seedling needle, a mounting cylinder fixedly connected inside the mounting sleeve, a pressure sensor installed inside the mounting cylinder, a spring fixedly connected to one side of the pressure sensor, a sliding column fixedly connected to one end of the spring, and the sliding column slidably connected to the mounting cylinder.

[0012] Furthermore, a tapered rod is fixedly connected to one end of the sliding column.

[0013] Furthermore, the second detection component includes a first protective shell fixedly connected within a support frame, an inclination sensor installed within the support frame, and the first protective shell covering one side of the inclination sensor.

[0014] Furthermore, the second drive assembly includes a fixed cover fixedly connected to one side of the first traveling wheel, a first servo motor installed inside the fixed cover, a first threaded rod fixedly connected to the output end of the first servo motor, the first threaded rod being rotatably connected to the first traveling wheel, a threaded plate being threadedly connected to the first threaded rod, the threaded plate being slidably connected to the inner wall of the fixed cover, and a power supply installed inside the fixed cover.

[0015] Furthermore, the telescopic assembly includes several movable rods fixedly connected to one side of the threaded plate. The movable rods are slidably connected to the first traveling wheel. A rotating column is rotatably connected inside the movable rod. Several first anti-slip plates are slidably connected inside the first traveling wheel. The first anti-slip plates have inclined grooves. The rotating column is rotatably connected to the inclined grooves.

[0016] Furthermore, the lifting assembly includes a support rod fixedly connected to the support frame, a second servo motor mounted on one side of the support rod, a second protective shell fixedly connected to one side of the support rod, the second protective shell covering one side of the second servo motor, a second threaded rod fixedly connected to the output end of the second servo motor, the second threaded rod rotatably connected to the support rod, a threaded frame threadedly connected to the second threaded rod, the threaded frame slidably connected to the support rod, a U-shaped frame fixedly connected to the bottom of the threaded frame, a second traveling wheel rotatably connected inside the U-shaped frame, and several second anti-slip plates fixedly connected to the outer wall of the second traveling wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] By using the detection of the first detection component and the timely extension and retraction of the seedling needle by the dynamic adjustment component, the insertion depth of each seedling is ensured to meet the transplanting requirements, thus guaranteeing consistent depth and improving the quality of transplanting.

[0019] When the second detection component detects a left or right tilt, the second drive component drives the telescopic component to extend or retract by the corresponding length, quickly restoring the support frame to a horizontal position and preventing the seedlings from being inserted at an angle.

[0020] When the second detection component detects a forward or backward tilt, the lifting component can extend or shorten according to the detection data to make the support frame horizontal, further preventing the seedlings from being inserted at an angle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of point A;

[0024] Figure 4 for Figure 2 Enlarged view of point B;

[0025] Figure 5 This is a cross-sectional structural diagram showing the connection relationship between the linkage component, dynamic adjustment component, seedling needle and first detection component of the present invention.

[0026] Figure 6 for Figure 5 Enlarged view of point C;

[0027] Figure 7 This is a cross-sectional structural diagram showing the connection relationship between the first traveling wheel, the second driving assembly, and the telescopic assembly of the present invention.

[0028] Figure 8 for Figure 7 Enlarged view of point D;

[0029] Figure 9 This is a side cross-sectional view of the connection relationship between the first traveling wheel, the second driving assembly, and the telescopic assembly of the present invention.

[0030] Figure 10 This is a schematic cross-sectional view of the lifting assembly of the present invention.

[0031] In the diagram: 1. Support frame; 11. Push-pull rod; 12. Seedling box; 13. Seedling outlet; 2. First drive assembly; 21. Mounting plate; 22. Motor; 23. Rotating shaft; 24. First gear; 25. Limiting frame; 26. Connecting shaft; 27. Second gear; 28. First sprocket; 29. ​​Chain; 3. Linkage assembly; 31. Mounting rod; 32. Rotating seat; 33. Second sprocket; 34. First connecting rod; 35. Second connecting rod; 36. Mounting seat; 37. Third connecting rod; 38. Fixing plate; 4. Dynamic adjustment assembly; 41. Fixing frame; 42. Electric push rod; 43. Slider; 5. Seedling needle; 6. First detection assembly; 61. Mounting sleeve; 62. Mounting cylinder; 63. Pressure sensor 64. Spring; 65. Sliding column; 7. Tapered rod; 8. First traveling wheel; 9. Second detection component; 91. First protective shell; 92. Tilt sensor; 10. Second drive component; 101. Fixed cover; 102. First servo motor; 103. First threaded rod; 104. Threaded plate; 105. Power supply; 20. Telescopic component; 201. Moving rod; 202. Rotating column; 203. First anti-slip plate; 204. Inclined groove; 30. Lifting component; 301. Support rod; 302. Second protective shell; 303. Second servo motor; 304. Second threaded rod; 305. Threaded frame; 306. U-shaped frame; 307. Second traveling wheel; 308. Second anti-slip plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] To address the technical challenges posed by uneven soil hardness and varied terrain, which lead to inconsistent seedling insertion depths, such as... Figures 1-9 As shown, the following preferred technical solutions are provided:

[0034] A rice transplanter with adaptive seedling depth adjustment function includes a support frame 1, which can support and fix various components. A controller is installed on one side of the support frame 1 to control various electrical components. The controller is existing technology and is not shown in the figure. A push-pull rod 11 is provided inside the support frame 1. The push-pull rod 11 is convenient for manual handling and is used to control the direction of movement of the transplanter. Two seedling boxes 12 are arranged opposite each other inside the support frame 1. A seedling outlet 13 is opened through the seedling box 12 to facilitate the placement of seedlings. A seedling supply mechanism is provided inside the seedling box 12. The seedling supply structure is existing technology and is not shown in the figure. The seedling supply structure works with the seedling outlet 13 to continuously supply seedlings to the subsequent transplanting mechanism. A first drive component 2 is provided inside the support frame 1. A linkage component 3 is provided inside the support frame 1. The linkage component 3 is connected to the first drive component 2. Two dynamic adjustment components 4 are arranged opposite each other inside the linkage component 3. A seedling needle 5 is provided on one side of each dynamic adjustment component 4. A first detection component 6 is provided on one side of the seedling needle 5. The first detection component 6 can detect the depth at which the seedling is inserted into the soil by the seedling needle 5.

[0035] In use, the controller drives the first drive component 2 to activate the linkage component 3, which in turn causes the two dynamic adjustment components 4 to move the seedling needle 5 along a fixed path. This removes the seedlings from the seedling box 12 through the seedling outlet 13 and inserts them into the soil, achieving automatic transplanting. During the insertion of the seedling needle 5 into the soil, the soil provides a reaction force to the first detection component 6. Combined with the real-time detection of the first detection component 6, if the value of the first detection component 6 exceeds the benchmark range during the transplanting period from the moment the seedling needle 5 contacts the soil to the completion of transplanting, the dynamic adjustment component 4 quickly retracts a short distance, causing the seedling needle 5 to retract. A short distance is used to restore the value of the first detection component 6 to the reference range. When the value of the first detection component 6 is lower than the reference range, the dynamic adjustment component 4 quickly extends a short distance, causing the seedling needle 5 to extend a short distance, so that the value of the first detection component 6 returns to the reference range. This allows for real-time dynamic correction of the depth of the seedling needle 5 inserted into the soil, ensuring that the insertion depth of each seedling is within the range that meets the transplanting requirements. This ensures that the insertion depth of each seedling is consistent, thereby improving the quality of transplanting. After transplanting is completed, the dynamic adjustment component 4 quickly resets to prepare for the next transplanting.

[0036] The first drive assembly 2 is fixedly connected to the first traveling wheel 8 at both ends. The second detection assembly 9 is installed inside the support frame 1. The second detection assembly 9 can detect the front-back and left-right tilting states of the support frame 1. The second drive assembly 10 is provided on one side of the first traveling wheel 8. The telescopic assembly 20 is slidably connected inside the first traveling wheel 8. The telescopic assembly 20 is connected to the second drive assembly 10. The lifting assembly 30 is provided inside the support frame 1.

[0037] During the rice transplanting process, scenario 1: When the second detection component 9 detects that the left and right sides of the support frame 1 are tilted, the controller causes the second drive component 10 on the lower side to drive the telescopic component 20 to extend by the length corresponding to the second detection component 9, and causes the second drive component 10 on the higher side to drive the telescopic component 20 to retract by the length corresponding to the second detection component 9, so that the left and right positions of the support frame 1 are restored to a horizontal state. At this time, the value of the second detection component 9 returns to the reference range.

[0038] Scenario 2: When the second detection component 9 detects that the front and rear sides of the support frame 1 are tilted, the controller causes the lifting component 30 to extend or shorten according to the specific data of the second detection component 9, so that the front and rear sides of the support frame 1 are restored to a horizontal state. At this time, the value of the second detection component 9 returns to the reference range, which can facilitate the dynamic adjustment of the left and right or front and rear angles of the support frame 1 during the rice transplanting process, so as to avoid the seedlings from tilting when being inserted, thereby improving the quality of rice transplanting.

[0039] like Figure 1 and Figures 3-4 As shown, the first drive assembly 2 includes a mounting plate 21 fixedly connected to the support frame 1. A motor 22 is mounted on one side of the mounting plate 21. A rotating shaft 23 is fixedly connected to the output end of the motor 22. A first gear 24 is fixedly connected to one end of the rotating shaft 23. Several limit frames 25 are fixedly connected inside the support frame 1. A connecting shaft 26 is rotatably connected inside the limit frame 25. A second gear 27 is fixedly connected to the outer wall of the connecting shaft 26. The second gear 27 meshes with the first gear 24. A first sprocket 28 is fixedly connected to the connecting shaft 26. A chain 29 is driven by the first sprocket 28.

[0040] like Figures 1-5 As shown, the linkage component 3 includes a mounting rod 31 fixedly connected to the support frame 1. A rotating seat 32 is rotatably connected inside the mounting rod 31. A second sprocket 33 is fixedly connected to one end of the rotating seat 32. The second sprocket 33 is connected to the chain 29 for transmission. A first connecting rod 34 is fixedly connected to the other end of the rotating seat 32. A second connecting rod 35 is rotatably connected to one end of the first connecting rod 34. Two mounting seats 36 are arranged opposite each other inside the support frame 1. A third connecting rod 37 is rotatably connected to each of the two mounting seats 36. A fixing plate 38 is fixedly connected to one end of each of the two third connecting rods 37. The second connecting rod 35 is rotatably connected to the fixing plate 38.

[0041] like Figure 1 and Figure 5As shown, the dynamic adjustment component 4 includes a fixed frame 41 that is fixedly connected to the fixed plate 38. An electric push rod 42 is installed in the fixed frame 41. The response speed of the electric push rod 42 can match the rice transplanting speed to avoid adjustment lag. A slider 43 is fixedly connected to the movable end of the electric push rod 42. The slider 43 is slidably connected to the fixed frame 41. A seedling needle 5 is fixedly connected to one side of the slider 43. The seedling needle 5 is slidably connected to the fixed frame 41.

[0042] like Figures 5-6 As shown, the first detection component 6 includes a mounting sleeve 61 fixedly connected to one side of the seedling needle 5. A mounting cylinder 62 is fixedly connected inside the mounting sleeve 61. A pressure sensor 63 is installed inside the mounting cylinder 62. A spring 64 is fixedly connected to one side of the pressure sensor 63. A sliding column 65 is fixedly connected to one end of the spring 64. The sliding column 65 is slidably connected to the mounting cylinder 62. The pressure sensor 63 can detect the reaction force transmitted by the soil through the sliding column 65 and the spring 64 in real time, thereby determining whether the insertion depth of the seedling needle 5 meets the reference range. During the initial calibration, the conical rod 7 is made to contact simulated soil with different hardness conditions. The controller sets the pressure value corresponding to the insertion depth of the seedling needle 5 to the reference range. At the same time, the initial preload of the spring 64 is adjusted to ensure that the value of the pressure sensor 63 is stable under zero load, thereby completing the calibration.

[0043] like Figure 6 As shown, a tapered rod 7 is fixedly connected to one end of the sliding column 65. The tapered rod 7 facilitates the insertion of the seedling needle 5 into the soil, allowing the tapered rod 7 to be inserted into the soil more smoothly. At the same time, the reaction force of the soil can be transmitted to the pressure sensor 63 more accurately and stably through the spring 64, making it easier for the pressure sensor 63 to detect the force.

[0044] In use, the controller causes the motor 22 to drive the rotating shaft 23 and the first gear 24 to rotate. The meshing of the second gear 27 with the first gear 24 drives the second gear 27, the connecting shaft 26, and the first sprocket 28 to rotate. Through the transmission of the chain 29, the second sprocket 33 drives the rotating seat 32 to rotate within the mounting rod 31. The rotating seat 32 then drives the first connecting rod 34, the second connecting rod 35, and the third connecting rod 37 to move, causing the fixed plate 38, the dynamic adjustment component 4, and the seedling needle 5 to move along a fixed path. This allows the seedling needle 5 to remove the seedlings from the seedling box 12 through the seedling outlet 13 and insert them into the soil, achieving automatic transplanting. During the insertion of the seedling needle 5 into the soil, the soil provides a reaction force to the conical rod 7, the sliding column 65, and the spring 64, which is transmitted to the pressure sensor 63. 3. Real-time detection: During the transplanting period from when the seedling needle 5 contacts the soil to when the transplanting is completed, if the value of the pressure sensor 63 is higher than the reference range, the electric push rod 42 will quickly retract a short distance, causing the seedling needle 5 to retract a short distance as well, so that the value of the pressure sensor 63 returns to the reference range. If the value of the pressure sensor 63 is lower than the reference range, the electric push rod 42 will quickly extend a short distance, causing the seedling needle 5 to extend a short distance as well, so that the value of the pressure sensor 63 returns to the reference range. This allows for real-time dynamic correction of the insertion depth of the seedling needle 5 into the soil, ensuring that the insertion depth of each seedling is within the range that meets the transplanting requirements, thus ensuring consistent seedling insertion depth and improving the quality of transplanting. After transplanting is completed, the electric push rod 42 will quickly reset, preparing for the next transplanting.

[0045] To address the technical problem of seedlings tilting after being planted due to uneven field terrain, such as... Figure 1 , Figure 3 and Figures 7-10 As shown, the following preferred technical solutions are provided:

[0046] like Figure 1 and Figure 3 As shown, the second detection component 9 includes a first protective shell 91 fixedly connected inside the support frame 1. An inclination sensor 92 is installed inside the support frame 1. The inclination sensor 92 is a two-axis inclination sensor 92, which can conveniently detect the tilt angles of the support frame 1 in the front-back and left-right vertical directions at the same time, and provide data for the subsequent leveling of the support frame 1. During the initial calibration, the support frame 1 is placed on a standard horizontal platform so that the inclination sensor 92 is in a horizontal state. The detection values ​​of the left-right and front-back are set as the reference range by the controller, thereby completing the calibration. The first protective shell 91 covers one side of the inclination sensor 92.

[0047] like Figure 1 and Figures 7-9As shown, the second drive assembly 10 includes a fixed cover 101 fixedly connected to one side of the first traveling wheel 8. A first servo motor 102 is installed inside the fixed cover 101. The first servo motor 102 has a self-locking function. A first threaded rod 103 is fixedly connected to the output end of the first servo motor 102. The first threaded rod 103 is rotatably connected to the first traveling wheel 8. A threaded plate 104 is threadedly connected to the first threaded rod 103. The threaded plate 104 is slidably connected to the inner wall of the fixed cover 101. Under normal conditions, the threaded plate 104 is located in the middle of the first threaded rod 103, which facilitates preparation for subsequent adjustments. A power supply 105 is installed inside the fixed cover 101, which provides stable power to the first servo motor 102.

[0048] like Figure 1 and Figures 7-9 As shown, the telescopic assembly 20 includes several movable rods 201 fixedly connected to one side of the threaded plate 104. The movable rods 201 are slidably connected to the first traveling wheel 8. A rotating column 202 is rotatably connected inside the movable rods 201. Several first anti-slip plates 203 are slidably connected inside the first traveling wheel 8. The first anti-slip plates 203 have inclined grooves 204. The rotating column 202 is rotatably connected to the inclined groove 204. Under normal conditions, the rotating column 202 is located in the middle of the inclined groove 204, which facilitates preparation for subsequent adjustments.

[0049] like Figure 1 and Figure 10 As shown, the lifting assembly 30 includes a support rod 301 fixedly connected to the support frame 1. A second servo motor 303 is installed on one side of the support rod 301. The second servo motor 303 has a self-locking function. A second protective shell 302 is fixedly connected to one side of the support rod 301. The second protective shell 302 covers one side of the second servo motor 303. A second threaded rod 304 is fixedly connected to the output end of the second servo motor 303. The second threaded rod 304 is rotatably connected to the support rod 301. A threaded frame 305 is threadedly connected to the second threaded rod 304. The threaded frame 305 is slidably connected to the support rod 301. A U-shaped frame 306 is fixedly connected to the bottom of the threaded frame 305. A second traveling wheel 307 is rotatably connected inside the U-shaped frame 306. Several second anti-slip plates 308 are fixedly connected to the outer wall of the second traveling wheel 307. Under normal conditions, the threaded frame 305 is located in the middle of the second threaded rod 304, which facilitates preparation for subsequent adjustments.

[0050] During rice transplanting, scenario 1: When the tilt sensor 92 detects a tilt on the left and right sides of the support frame 1, the controller causes the first servo motor 102 on the lower side to rotate forward, driving the first threaded rod 103 to rotate. This causes the threaded plate 104 to slide within the fixed cover 101, moving the moving rod 201 and causing the rotating column 202 to roll downward within the inclined groove 204. This causes the first anti-slip plate 203 to extend beyond the length corresponding to the tilt sensor 92 within the first traveling wheel 8, and causes the first servo motor 102 on the higher side to rotate in the opposite direction. The first threaded rod 103 rotates, causing the threaded plate 104 to slide within the fixed cover 101, which in turn moves the moving rod 201, causing the rotating column 202 to roll upward within the inclined groove 204. This causes the first anti-slip plate 203 to retract the length corresponding to the tilt sensor 92 within the first traveling wheel 8, thereby restoring the left and right positions of the support frame 1 to a horizontal state. At this time, the value of the tilt sensor 92 returns to the reference range. When the left and right positions are offset and dynamic adjustment is performed, the path offset of the rice transplanter is controlled within a reasonable range and will not affect the normal rice transplanting path.

[0051] Scenario 2: When the tilt sensor 92 detects that the front and rear sides of the support frame 1 are tilted, the controller causes the second servo motor 303 to drive the second threaded rod 304 to rotate, causing the threaded frame 305 to drive the U-shaped frame 306 to move. Based on the specific data from the tilt sensor 92, the support frame 1 is extended or shortened accordingly, so that the front and rear sides of the support frame 1 are restored to a horizontal state. At this time, the value of the second detection component 9 returns to the reference range, which can facilitate the dynamic adjustment of the left-right or front-back angle of the support frame 1 during the rice planting process, avoiding tilting of the seedlings during insertion and thus improving the quality of rice planting. If the value detected by the tilt sensor 92 exceeds the correctable range, an alarm is triggered to remind the user. The alarm is existing technology and is not shown in the figure.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice transplanter with seedling depth self-adaptive adjustment function, comprising a support frame (1), characterized in that: The supporting frame (1) is provided with a push-pull rod (11), two seedling boxes (12) are oppositely arranged in the supporting frame (1), a seedling emergence opening (13) is formed through the seedling box (12), a first driving assembly (2) is arranged in the supporting frame (1), a linkage assembly (3) is arranged in the supporting frame (1) and connected with the first driving assembly (2), two dynamic adjusting assemblies (4) are oppositely arranged in the linkage assembly (3), a seedling needle (5) is arranged on one side of each of the two dynamic adjusting assemblies (4), a first detection assembly (6) is arranged on one side of the seedling needle (5), first walking wheels (8) are fixedly connected to two ends of the first driving assembly (2), a second detection assembly (9) is installed in the supporting frame (1), a second driving assembly (10) is arranged on one side of the first walking wheel (8), a telescopic assembly (20) is slidably connected in the first walking wheel (8) and connected with the second driving assembly (10), and a lifting assembly (30) is arranged in the supporting frame (1); The first detection assembly (6) comprises a mounting sleeve (61) fixedly connected to one side of the seedling needle (5), a mounting cylinder (62) fixedly connected in the mounting sleeve (61), a pressure sensor (63) installed in the mounting cylinder (62), a spring (64) fixedly connected to one side of the pressure sensor (63), a sliding column (65) fixedly connected to one end of the spring (64), and the sliding column (65) is slidably connected with the mounting cylinder (62); One end of the sliding column (65) is fixedly connected with a tapered rod (7); The second driving assembly (10) comprises a fixed cover (101) fixedly connected to one side of the first walking wheel (8), a first servo motor (102) installed in the fixed cover (101), a first threaded rod (103) fixedly connected to an output end of the first servo motor (102), the first threaded rod (103) is rotatably connected with the first walking wheel (8), a threaded plate (104) threadedly connected with the first threaded rod (103), the threaded plate (104) is slidably connected with an inner wall of the fixed cover (101), and a power supply (105) is installed in the fixed cover (101); The telescopic assembly (20) comprises a plurality of moving rods (201) fixedly connected to one side of the threaded plate (104), the moving rods (201) are slidably connected with the first walking wheel (8), a rotating column (202) is rotatably connected in the moving rod (201), a plurality of first anti-skid plates (203) are slidably connected in the first walking wheel (8), the first anti-skid plate (203) is provided with an inclined groove (204), and the rotating column (202) is rollingly connected with the inclined groove (204). The lifting assembly (30) comprises a supporting rod (301) fixedly connected in the supporting frame (1), a second servo motor (303) is mounted on one side of the supporting rod (301), a second protective shell (302) is fixedly connected on one side of the supporting rod (301), the second protective shell (302) covers one side of the second servo motor (303), the output end of the second servo motor (303) is fixedly connected with a second threaded rod (304), the second threaded rod (304) is rotatably connected with the supporting rod (301), the second threaded rod (304) is threadedly connected with a threaded frame (305), the threaded frame (305) is slidably connected with the supporting rod (301), the bottom of the threaded frame (305) is fixedly connected with a U-shaped frame (306), the second walking wheel (307) is rotatably connected in the U-shaped frame (306), and the outer wall of the second walking wheel (307) is fixedly connected with a plurality of second anti-skid plates (308).

2. The rice transplanter with a seedling depth self-adaptive adjustment function according to claim 1, characterized in that: The first driving assembly (2) comprises a mounting plate (21) fixedly connected in the supporting frame (1), a motor (22) is mounted on one side of the mounting plate (21), the output end of the motor (22) is fixedly connected with a rotating shaft (23), one end of the rotating shaft (23) is fixedly connected with a first gear (24), a plurality of limiting frames (25) are fixedly connected in the supporting frame (1), a connecting shaft (26) is rotatably connected in the limiting frame (25), the outer wall of the connecting shaft (26) is fixedly connected with a second gear (27), the second gear (27) is meshed with the first gear (24), the connecting shaft (26) is fixedly connected with a first sprocket (28), and the first sprocket (28) is drivingly connected with a chain (29).

3. The rice transplanter with depth self-adaptive adjustment function according to claim 2, characterized in that: The linkage assembly (3) comprises a mounting rod (31) fixedly connected in the supporting frame (1), a rotating seat (32) is rotatably connected in the mounting rod (31), one end of the rotating seat (32) is fixedly connected with a second sprocket (33), the second sprocket (33) is drivingly connected with the chain (29), the other end of the rotating seat (32) is fixedly connected with a first connecting rod (34), one end of the first connecting rod (34) is rotatably connected with a second connecting rod (35), two mounting seats (36) are oppositely arranged in the supporting frame (1), a third connecting rod (37) is rotatably connected in each of the two mounting seats (36), one end of the two third connecting rods (37) is fixedly connected with a fixed plate (38), and the second connecting rod (35) is rotatably connected with the fixed plate (38).

4. The rice transplanter with depth self-adaptive adjustment function according to claim 3, characterized in that: The dynamic adjusting assembly (4) comprises a fixed frame (41) fixedly connected in the fixed plate (38), an electric push rod (42) is mounted in the fixed frame (41), the movable end of the electric push rod (42) is fixedly connected with a sliding block (43), the sliding block (43) is slidably connected with the fixed frame (41), the sliding block (43) is fixedly connected with a needle (5) on one side, and the needle (5) is slidably connected with the fixed frame (41).

5. The rice transplanter with depth self-adaptive adjustment function according to claim 1, characterized in that: The second detection assembly (9) comprises a first protective shell (91) fixedly connected in the supporting frame (1), and an inclination sensor (92) is mounted in the supporting frame (1), and the first protective shell (91) covers one side of the inclination sensor (92).

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