Planting machine with adjustable row spacing

Abstract

A kind of spacing adjustable transplanting machine, it is related to agricultural machinery technical field, including main frame body, walking wheel and rotary lever connected to main frame body, drive and moving transmission assembly connected to rotary lever and opening and closing transmission assembly and seedling assembly connected to moving transmission assembly.Rotary lever is rotated under the drive of drive, the power for driving seedling assembly longitudinal movement is transmitted to seedling assembly by moving transmission assembly, the power for driving seedling assembly opening and closing is sequentially transmitted to seedling assembly by moving transmission assembly and opening and closing transmission assembly.Change the driving speed of drive, to change the rotary speed of rotary lever, to change the longitudinal movement frequency and opening and closing frequency of seedling assembly, to change the planting spacing of seedling in this way.And walking wheel is driven alone, is not influenced by the rotation of rotary lever, so that walking wheel and seedling assembly are in non-linkage form, therefore, the planting spacing of seedling can be changed according to the need, to expand the application range of transplanting machine.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a transplanter with adjustable plant spacing. Background Technology

[0002] Transplanters are used to transplant seedlings into the soil, replacing manual transplanting and improving work efficiency. A transplanter consists of wheels and a speculum. The wheels move the entire machine, while the speculum holds the seedling. When the speculum is inserted into the soil and opens, it leaves the seedling in the soil, thus achieving transplanting. Currently, the wheels and speculum are linked, connected by a single rotating rod. Driven by a motor, the rod rotates, causing the wheels to rotate and simultaneously moving the speculum longitudinally and opening and closing. The faster the rod rotates, the faster the transplanter travels, and the more frequently the speculum opens and closes. This means that the travel speed of this type of transplanter is closely related to the planting spacing, resulting in a fixed planting spacing and limiting the machine's applicability. Summary of the Invention

[0003] In view of this, it is necessary to provide a transplanter with adjustable plant spacing, in which the walking wheels and seedling components are set to be non-linked, so that the two do not affect each other, so that the plant spacing can be adjusted and the applicable range can be expanded.

[0004] An adjustable-spacing transplanter includes a main frame, rotatably connected wheels and a rotating rod, a driver and a moving transmission assembly connected to the rotating rod, and an opening / closing transmission assembly and a seedling assembly connected to the moving transmission assembly. The main frame is driven by the wheels to move at a constant speed along a planting path. The seedling assembly is connected to the opening / closing transmission assembly. The rotating rod is driven by the driver to rotate relative to the main frame. The moving transmission assembly is driven by the rotating rod to transmit power to the opening / closing transmission assembly and the seedling assembly. The seedling assembly is driven by the moving transmission assembly to move longitudinally and by the opening / closing transmission assembly to switch between a seedling storage state and a seedling release state. The seedling assembly switches from the seedling release state to the seedling storage state while moving upward, and from the seedling storage state to the seedling release state while moving downward. The wheels and the rotating rod are relatively independent. The driver is configured to have an adjustable speed to adjust the longitudinal movement frequency and opening / closing frequency of the seedling assembly, thereby changing the planting spacing of the seedlings.

[0005] Preferably, the seedling assembly includes a seedling receiving chamber, an installation box connected to the seedling receiving chamber, a connecting frame rotatably connected to the installation box, and a speckle connected to the connecting frame. A movement transmission component is connected to the seedling receiving chamber or the installation box to drive the seedling assembly to move. An opening and closing transmission component is connected to the connecting frame to drive the connecting frame to rotate relative to the installation box, thereby driving the speckle to open and close through the connecting frame. The speckle has a receiving cavity connected to the installation box, so that the seedlings can fall from the installation box into the receiving cavity. When the seedling assembly is in the seedling storage state, the speckle is closed to seal the receiving cavity. When the seedling assembly is in the seedling release state, the speckle is open to expose the receiving cavity.

[0006] Preferably, the seedling assembly also includes a depth adjuster connected to the moving transmission assembly and the seedling receiving chamber. The depth adjuster is configured to change the longitudinal position of the speckler relative to the moving transmission assembly, thereby changing the depth at which the speckler is inserted into the soil.

[0007] Preferably, the depth adjuster includes a lifting part and a driving part connected to the lifting part. The fixed end of the lifting part is connected to the moving transmission component, and the lifting end is connected to the seedling receiving chamber. Under the drive of the driving part, the lifting part drives the duckbill device to move longitudinally relative to the moving transmission component through the seedling receiving chamber.

[0008] Preferably, the depth adjuster further includes a guide rod connected to the seedling receiving chamber and a connecting plate connected to the moving transmission assembly. The guide rod extends in a vertical direction, and a guide hole is formed on the connecting plate. The guide rod is inserted into the guide hole and slides in cooperation with the connecting plate. When the lifting part drives the seedling receiving chamber to move longitudinally, the connecting plate slides along the extension direction of the guide rod.

[0009] Preferably, the opening and closing transmission assembly includes a swing arm rotatably disposed relative to the main frame, a pull rope connected to one end of the swing arm, and a sleeve sleeved on the pull rope. One end of the sleeve is connected to the main frame. The connecting frame includes a first right half and a first left half rotatably connected to the mounting box. The first right half is connected to the other end of the pull rope, and the first left half is connected to the other end of the sleeve. The duckbill device includes a second right half connected to the first right half and a second left half connected to the first left half. The swing arm can be driven to reciprocate and swing, and pull the pull rope under the swing action, so that the second right half is driven to rotate in a direction away from the second left half through the first right half, and the second left half is driven to rotate in a direction away from the second right half through the first left half, thereby switching from the seedling storage state to the seedling release state.

[0010] Preferably, the moving transmission assembly includes a longitudinal transmission gear and a transverse transmission gear connected to the rotating rod, a longitudinal connecting rod eccentrically connected to the longitudinal transmission gear, and a transverse connecting rod eccentrically connected to the transverse transmission gear. The longitudinal connecting rod is connected to the seedling assembly to transmit the power of the longitudinal transmission gear to the seedling assembly, thereby driving the seedling assembly to move longitudinally. The transverse connecting rod is connected to the seedling assembly to transmit the power of the transverse transmission gear to the seedling assembly, thereby driving the seedling assembly to move laterally. While the seedling assembly moves downward relative to the main frame under the drive of the longitudinal connecting rod, it also moves backward relative to the main frame under the drive of the transverse connecting rod, so that the seedling assembly is stationary relative to the land in the seedling placement state.

[0011] Preferably, the moving transmission assembly further includes a first balance block and / or a second balance block, wherein the longitudinal transmission gear and the longitudinal connecting rod are connected through the first balance block, and the transverse transmission gear and the transverse connecting rod are connected through the second balance block.

[0012] Preferably, the moving transmission assembly further includes a fixed plate connected to the main frame, a main gear rotatably connected to the fixed plate, a seedling transmission chain meshing with the main gear, a longitudinal transmission gear and a transverse transmission gear, and a misaligned transmission assembly connected to the main gear. The moving transmission assembly is connected to the rotating rod through the misaligned transmission assembly.

[0013] Preferably, the misaligned transmission assembly includes a first misaligned gear coaxially connected to the rotating rod, a second misaligned gear coaxially connected to the main gear, and a misaligned transmission chain meshing with the first misaligned gear and the second misaligned gear, wherein the rotating shaft of the main gear is parallel to the rotating rod and the two are misaligned.

[0014] The present invention adopts the above-mentioned technical solution, and its beneficial effects are as follows: the rotating rod rotates under the drive of the driver, transmitting the power for driving the longitudinal movement of the seedling assembly to the seedling assembly through the moving transmission assembly, and transmitting the power for driving the opening and closing of the seedling assembly to the seedling assembly in sequence through the moving transmission assembly and the opening and closing transmission assembly. Changing the driving speed of the driver changes the rotation speed of the rotating rod, thereby changing the longitudinal movement frequency and opening and closing frequency of the seedling assembly, thus changing the planting spacing of the seedlings. The traveling wheels are driven independently and are not affected by the rotation of the rotating rod, making the traveling wheels and the seedling assembly non-linked. Therefore, the planting spacing of the seedlings can be changed as needed, expanding the applicability of the transplanter. Attached Figure Description

[0015] Figure 1 This is a perspective view of the adjustable plant spacing transplanter of this utility model.

[0016] Figure 2 for Figure 1 A three-dimensional view of the adjustable-spacing transplanter.

[0017] Figure 3 for Figure 2 A stereoscopic view from another perspective.

[0018] Figure 4 for Figure 1 A three-dimensional view of the moving transmission component, opening and closing transmission component, seedling component, misalignment transmission component, and seedling placement component of a medium-spacing adjustable transplanter.

[0019] Figure 5 for Figure 4 A stereoscopic view from another perspective.

[0020] Figure 6 for Figure 1 A three-dimensional view of the seedling assembly and part of the opening and closing transmission assembly of a medium-spacing adjustable transplanter.

[0021] Figure 7 for Figure 6 A three-dimensional view of the seedling components.

[0022] Figure 8 for Figure 6 A 3D view of the depth adjuster of the seedling assembly being removed.

[0023] Figure 9 for Figure 1 A three-dimensional view of the moving transmission components, opening and closing transmission components, and part of the main frame of a medium-spacing adjustable transplanter.

[0024] Figure 10 for Figure 9 A stereoscopic view from another perspective.

[0025] Figure 11 for Figure 1 A 3D view of the height adjustment components and wheels of a medium-spacing adjustable transplanter.

[0026] Figure 12 for Figure 1 A three-dimensional view of the soil covering components of a medium-spacing adjustable transplanter.

[0027] Figure 13 for Figure 1 A three-dimensional view of the seedling placement components of a medium-spacing adjustable transplanter.

[0028] Figure 14 for Figure 13 A stereoscopic view from another perspective.

[0029] In the diagram: Main frame 10, traveling wheel 20, rotating rod 30, driver 40, moving transmission assembly 50, longitudinal transmission gear 51, transverse transmission gear 52, longitudinal connecting rod 53, transverse connecting rod 54, first balance block 55, second balance block 56, fixed plate 57, main gear 58, seedling transmission chain 59, tension gear 510, opening and closing transmission assembly 60, swing rod 61, pull rope 62, sleeve 63, roller 64, cam 65, seedling assembly 70, seedling receiving chamber 71, mounting box 72, connecting frame 73, first right half 731, first left half 732, duckbill device 74, second right half 741, second left half Part 742, Depth Adjuster 75, Lifting Part 751, Drive Part 752, Guide Rod 753, Connecting Plate 754, Return Spring 76, Rotating Shaft 77, Positioning Column 78, Misalignment Transmission Assembly 80, First Misalignment Gear 81, Second Misalignment Gear 82, Misalignment Transmission Chain 83, Height Adjustment Assembly 90, Telescopic Rod 91, Rotating Wheel 92, Lifting Frame 93, Soil Covering Assembly 100, Connecting Rod 101, Soil Covering Wheel 102, Buffer Spring 103, Seedling Placement Assembly 110, Seedling Placement Tray 111, Seedling Placement Chamber 112, First Seedling Placement Gear 113, Second Seedling Placement Gear 114, Seedling Placement Transmission Chain 115, Lower Seedling Chamber 116. Detailed Implementation

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Please refer to Figures 1 to 14This utility model provides an adjustable-spacing transplanter, including a main frame 10, a traveling wheel 20 and a rotating rod 30 rotatably connected to the main frame 10, a driver 40 and a moving transmission assembly 50 connected to the rotating rod 30, and an opening / closing transmission assembly 60 and a seedling assembly 70 connected to the moving transmission assembly 50. The main frame 10 can be driven by the traveling wheel 20 to move at a constant speed along the planting path. The seedling assembly 70 is connected to the opening / closing transmission assembly 60. The rotating rod 30 can be driven by the driver 40 to rotate relative to the main frame 10. The moving transmission assembly 50 can be driven by the rotating rod 30 to... Power is transmitted to the opening and closing transmission assembly 60 and the seedling assembly 70. The seedling assembly 70 can be driven to move longitudinally by the moving transmission assembly 50 and to switch between the seedling storage state and the seedling release state by the opening and closing transmission assembly 60. The seedling assembly 70 switches from the seedling release state to the seedling storage state while moving upward, and switches from the seedling storage state to the seedling release state while moving downward. The traveling wheel 20 and the rotating rod 30 are relatively independent. The driver 40 is set to be adjustable in speed so as to adjust the longitudinal movement frequency and opening and closing frequency of the seedling assembly 70 by different speeds, thereby changing the planting spacing of the seedlings.

[0032] The walking wheels 20 rotate relative to the main frame 10, causing the transplanter to move along the planting path. The rotating rod 30 rotates relative to the main frame 10 under the drive of the driver 40, which drives the moving transmission component 50 to transmit power to the seedling component 70, so as to drive the seedling component 70 to move longitudinally. The moving transmission component 50 also transmits power to the opening and closing transmission component 60, so as to drive the seedling component 70 to switch between the seedling storage state and the seedling release state. In the seedling storage state, the duckbill 74 (described in detail later) is closed, and the seedling is located in the receiving cavity of the duckbill 74. In the seedling release state, the duckbill 74 is opened, and the seedling in the receiving cavity is inserted into the soil under the action of the duckbill 74. The drive unit 40 can adjust its rotation speed to change the rotation speed of the rotating rod 30. The power frequency transmitted from the rotating rod 30 to the moving transmission component 50 and from the moving transmission component 50 to the opening and closing transmission component 60 is changed, thereby altering the longitudinal movement frequency and opening and closing frequency of the seedling assembly 70. This changes the switching frequency of the seedling assembly 70 between the seedling storage state and the seedling release state. With the traveling wheel 20 rotating at a constant speed, changing the switching frequency can alter the planting spacing of the seedlings. The rotation of the traveling wheel 20 and the rotating rod 30 do not affect each other. By changing the rotation speed of the rotating rod 30, the planting spacing of the seedlings can be changed, enabling this transplanter to meet various planting spacing requirements and making it widely applicable.

[0033] The walking wheels 20 can be driven by an electric motor or connected to a tractor at the front of the main frame 10, allowing the tractor to drive the transplanter. The drive unit 40 can be a variable speed motor or a combination of a motor and an adjustable speed reducer.

[0034] Please refer to Figures 4 to 8Furthermore, the seedling assembly 70 includes a seedling receiving chamber 71, an installation box 72 connected to the seedling receiving chamber 71, a connecting frame 73 rotatably connected to the installation box 72, and a speckle 74 connected to the connecting frame 73. A moving transmission assembly 50 is connected to the seedling receiving chamber 71 or the installation box 72 to drive the seedling assembly 70 to move. An opening and closing transmission assembly 60 is connected to the connecting frame 73 to drive the connecting frame 73 to rotate relative to the installation box 72, thereby driving the speckle 74 to open and close through the connecting frame 73. The speckle 74 has a receiving cavity connected to the installation box 72 inside, so that the seedlings can fall from the installation box 72 into the receiving cavity. In the seedling storage state of the seedling assembly 70, the speckle 74 is closed to seal the receiving cavity. In the seedling release state of the seedling assembly 70, the speckle 74 is open to expose the receiving cavity.

[0035] Seedlings are placed inside the seedling receiving chamber 71. The seedlings fall from the receiving chamber 71 into the mounting box 72, and then from the mounting box 72 into the receiving cavity of the speckler 74. At this time, the speckler 74 moves upward to its limit position under the action of the moving transmission component 50, and simultaneously closes under the action of the opening and closing transmission component 60, i.e., the seedling storage state, to hold the seedlings and prevent them from falling. The rotating rod 30 continues to rotate, and the speckler 74 moves downward into the soil under the action of the moving transmission component 50, and simultaneously opens under the action of the opening and closing transmission component 60, i.e., the seedling release state. The speckler 74 forms a hole in the soil, and the seedling falls from the receiving cavity of the speckler 74 into the hole. The rotating rod 30 continues to rotate, and the speckler 74 moves upward again under the action of the moving transmission component 50, leaving the seedling in the hole, thus achieving seedling planting.

[0036] The shape of the connecting bracket 73 is adapted to the shape of the mounting box 72 so that when the duckbill 74 is closed, the connecting bracket 73 can surround the outer periphery of the mounting box 72.

[0037] Please refer to Figure 6 and Figure 7 Furthermore, the seedling assembly 70 also includes a depth adjuster 75 connected to the movable transmission assembly 50 and the seedling receiving chamber 71. The depth adjuster 75 is configured to change the longitudinal position of the duckbill 74 relative to the movable transmission assembly 50, so as to change the depth at which the duckbill 74 is inserted into the soil.

[0038] When the required seedling length and planting depth differ, the depth to which the seedlings are inserted into the soil varies, necessitating adjustments to the depth of the holes formed by the speckler 74. Therefore, a depth adjuster 75 is provided to regulate the longitudinal position of the speckler 74 relative to the moving transmission assembly 50, i.e., the distance between the speckler 74 and the soil surface when the seedling is in its stored state. Since the length of the speckler 74 remains constant, a smaller distance results in a longer insertion length and a deeper hole; conversely, a larger distance results in a shorter insertion length and a shallower hole. By adjusting the speckler 74 according to different seedling lengths and planting depths using the depth adjuster 75, the applicability of this transplanter is further expanded.

[0039] In some embodiments, the speckle 74 is detachably connected to the connecting frame 73, which can be a magnetic connection. Specifically, a magnet is fixed to the bottom of the connecting frame 73, and the speckle 74 is attracted to the magnet. The magnetic force is sufficient to prevent the speckle 74 from falling off due to the soil's reaction force when it is pulled out of the soil. In this embodiment, the speckle 74 can be easily removed for cleaning and replacement. Furthermore, different hole depths can be achieved by replacing speckles 74 of different lengths when different seedling lengths and planting depths are required. Figure 8 As shown, the top of the duckbill 74 and the bottom of the connecting frame 73 are both circular. The top of the duckbill 74 is provided with a plurality of positioning holes evenly spaced along the circumference. The bottom of the connecting frame 73 has a plurality of positioning posts 78 extending longitudinally along the circumference, each corresponding to a positioning hole. The positioning posts 78 are inserted into the positioning holes to limit the installation position of the duckbill 74 and prevent the position of the duckbill 74 from shifting when it is reinstalled.

[0040] In some embodiments, such as Figures 1 to 3 as well as Figure 11 As shown, the plant spacing adjustable transplanter also includes a height adjustment component 90. The height adjustment component 90 includes a lifting frame 93 rotatably connected to the main frame 10 and the traveling wheels 20, a telescopic rod 91 rotatably connected to the lifting frame 93, and a rotating wheel 92 connected to the telescopic rod 91. The telescopic rod 91 may include an outer sleeve and an inner rod that are threadedly connected. The rotating wheel 92 is connected to the end of the inner rod. When the rotating wheel 92 rotates, it drives the inner rod to rotate relative to the sleeve, so as to realize the extension and shortening of the telescopic rod 91, thereby driving the lifting frame 93 to rotate relative to the main frame 10 and the traveling wheels 20. This compresses or stretches the entire transplanter in the longitudinal direction, changes the distance between the duckbill 74 and the soil surface, and thus changes the depth of the duckbill 74 inserted into the soil, expanding the depth adjustment range of the duckbill 74.

[0041] Please continue reading. Figure 6 and Figure 7Furthermore, the depth adjuster 75 includes a lifting part 751 and a driving part 752 connected to the lifting part 751. The fixed end of the lifting part 751 is connected to the moving transmission assembly 50, and the lifting end is connected to the seedling receiving chamber 71. Under the drive of the driving part 752, the lifting part 751 drives the duckbill device 74 to move longitudinally relative to the moving transmission assembly 50 through the seedling receiving chamber 71.

[0042] The lifting unit 751 extends and retracts longitudinally under the drive of the driving unit 752, causing the seedling receiving chamber 71 to move longitudinally relative to the moving transmission component 50, which in turn causes the duckbill device 74 to move longitudinally relative to the moving transmission component 50, thereby adjusting the depth of the holes formed by the duckbill device 74 in the soil.

[0043] The lifting part 751 can be a cylinder, and the corresponding drive part 752 can be an air pump. Alternatively, the lifting part 751 can be a ball screw, and the corresponding drive part 752 can be a motor.

[0044] Please continue reading. Figure 6 and Figure 7 Furthermore, the depth adjuster 75 also includes a guide rod 753 connected to the seedling chamber 71 and a connecting plate 754 connected to the moving transmission assembly 50. The guide rod 753 extends in the vertical direction, and a guide hole is formed on the connecting plate 754. The guide rod 753 is inserted into the guide hole and slides in cooperation with the connecting plate 754. When the lifting part 751 drives the seedling chamber 71 to move longitudinally, the connecting plate 754 slides along the extension direction of the guide rod 753.

[0045] The guide rod 753 extends longitudinally and cooperates with the connecting plate 754 to limit the movement direction of the seedling receiving chamber 71, ensuring the longitudinal movement of the seedling receiving chamber 71, and thus ensuring the longitudinal movement of the duckbill device 74, preventing the movement direction of the duckbill device 74 from deviating. Furthermore, during the longitudinal movement of the seedling receiving chamber 71, the guide rod 753 always slides relative to the connecting plate 754, thereby ensuring the stability of the longitudinal movement of the seedling receiving chamber 71.

[0046] Please refer to Figures 2 to 6 as well as Figure 9 and Figure 10Furthermore, the opening and closing transmission assembly 60 includes a swing rod 61 rotatably disposed relative to the main frame 10, a pull rope 62 connected at one end to the swing rod 61, and a sleeve 63 sleeved on the pull rope 62. One end of the sleeve 63 is connected to the main frame 10. The connecting frame 73 includes a first right half 732 and a first left half 731 rotatably connected to the mounting box 72. The first right half 732 is connected to the other end of the pull rope 62, and the first left half 731 is connected to the other end of the sleeve 63. The duckbill device 74 includes... The second right half 742 connected to the first right half 732 and the second left half 741 connected to the first left half 731 are connected to the second right half 742. The swing rod 61 can be driven to swing back and forth. Under the swing action, the pull rope 62 is pulled so that the second right half 742 is driven to rotate in the direction away from the second left half 741 through the first right half 732, and the second left half 741 is driven to rotate in the direction away from the second right half 742 through the first left half 731, thereby switching from the seedling storage state to the seedling release state.

[0047] The lower end of the swing arm 61 is fixedly connected to the pull rope 62. The swing arm 61 swings back and forth, and its lower end pulls the pull rope 62 back and forth, so that the pull rope 62 is subjected to the same amount of tension at predetermined intervals, thereby realizing that the duckbill device 74 opens at predetermined intervals, so as to cooperate with the moving transmission component 50 to open when the duckbill device 74 moves downward and close when it moves upward.

[0048] It should be noted that when the pull rope 62 is not under force, both the pull rope 62 and the sleeve 63 are in a bent state. When the pull rope 62 is under tension, the pull rope 62 is straightened, pulling the first right half 732 to rotate around the pivot 77. At the same time, the pull rope 62 drives the sleeve 63 to straighten. When the sleeve 63 straightens from a bent state, it generates a rigid force. Since one end of the sleeve 63 is fixedly connected to the main frame 10, this end of the sleeve 63 cannot move. The other end of the sleeve 63 will move, and this end is connected to the first left half 731, so that the rigid force of the sleeve 63 can act on the first left half 731, pushing the first left half 731 to rotate around the pivot 77. In other words, when the pull rope 62 is under tension, the first right half 732 rotates under the action of the pull rope 62, and the first left half 731 rotates under the action of the sleeve 63, so that the lower parts of the first left half 731 and the first right half 732 rotate away from each other, thereby driving the second left half 741 and the second right half 742 of the duckbill device 74 to rotate away from each other, so that the duckbill device 74 opens.

[0049] In addition, such as Figure 10As shown, the upper end of the rocker arm 61 is rotatably connected to the fixed plate 57 of the moving transmission assembly 50 (described in detail later). The opening and closing transmission assembly 60 also includes a cam 65 and a roller 64. The cam 65 is coaxially connected to the longitudinal transmission gear 51 of the moving transmission assembly 50 (described in detail later). When the longitudinal transmission gear 51 rotates, it drives the cam 65 to rotate. The roller 64 is rotatably connected to the rocker arm 61 and abuts against the outer circumferential surface of the cam 65. The cam 65 pushes the roller 64 back and forth, and the roller 64 drives the rocker arm 61 to swing back and forth relative to the fixed plate 57, thereby pulling the pull rope 62 back and forth.

[0050] In addition, such as Figure 6 and Figure 8 As shown, the connecting frame 73 and the mounting box 72 are rotatably connected via a rotating shaft 77. The rotating shaft 77 passes through the middle of the mounting box 72, the first right half 732 and the first left half 731 of the connecting frame 73. The first right half 732 and the first left half 731 rotate around the rotating shaft 77, while the rotating shaft 77 remains stationary. A return spring 76 is connected between the first right half 732 and the first left half 731, with one end of the spring connected to the first right half 732 and the other end connected to the first left half 731. Under the pulling action of the pull rope 62, the return spring 76 is stretched. When the tension of the pull rope 62 disappears, the return spring 76 returns to its original state under its own elastic force, causing the first right half 732 and the first left half 731 to rotate towards each other, thereby causing the duckbill device 74 to close, i.e., switching to the seedling storage state.

[0051] Please refer to Figures 1 to 5 as well as Figure 9 and Figure 10 Furthermore, the moving transmission assembly 50 includes a longitudinal transmission gear 51 and a transverse transmission gear 52 connected to the rotating rod 30, a longitudinal connecting rod 53 eccentrically connected to the longitudinal transmission gear 51, and a transverse connecting rod 54 eccentrically connected to the transverse transmission gear 52. The longitudinal connecting rod 53 is connected to the seedling assembly 70 to transmit the power of the longitudinal transmission gear 51 to the seedling assembly 70, thereby driving the seedling assembly 70 to move longitudinally. The transverse connecting rod 54 is connected to the seedling assembly 70 to transmit the power of the transverse transmission gear 52 to the seedling assembly 70, thereby driving the seedling assembly 70 to move laterally. While the seedling assembly 70 moves downward relative to the main frame 10 under the drive of the longitudinal connecting rod 53, it also moves backward relative to the main frame 10 under the drive of the transverse connecting rod 54, so that the seedling assembly 70 is stationary relative to the land in the seedling placement state.

[0052] One end of the longitudinal connecting rod 53 is eccentrically connected to the longitudinal transmission gear 51, and the other end is rotatably connected to one end of the transverse connecting rod 54. The other end of the transverse connecting rod 54 is eccentrically connected to the transverse transmission gear 52. The end of the transverse connecting rod 54 connected to the longitudinal connecting rod 53 is also connected to the seedling assembly 70. The transverse connecting rod 54 and the longitudinal connecting rod 53 are linked together, so that when the duckbill 74 is inserted into the soil, it will not follow the traveling wheel 20, but will remain stationary in the soil. That is to say, when the seedling assembly 70 is inserted into the soil under the action of the longitudinal connecting rod 53, it moves backward relative to the main frame 10 under the action of the transverse connecting rod 54. The path of backward movement is the same as the path of forward movement of the traveling wheel 20 during this process, which makes up for the excess of forward movement of the traveling wheel 20. This avoids the duckbill 74 being driven by the traveling wheel 20 when it is inserted into the soil, so that the duckbill 74 forms a circular hole in the soil instead of a long strip hole.

[0053] Please refer to Figure 9 Furthermore, the moving transmission assembly 50 also includes a first balance block 55 and / or a second balance block 56, with the longitudinal transmission gear 51 and the longitudinal connecting rod 53 connected through the first balance block 55, and the transverse transmission gear 52 and the transverse connecting rod 54 connected through the second balance block 56.

[0054] The first balance block 55 and the second balance block 56 are both used to achieve counterweight, so as to prevent the transverse transmission gear 52 and the longitudinal transmission gear 51 from being subjected to excessive eccentric force, which would accelerate the wear of the gear shaft.

[0055] The first balance block 55 and the second balance block 56 are both formed with a fan-shaped hammer structure. The connection between the rod-shaped part and the fan-shaped part of the first balance block 55 is rotatably connected to the center of the longitudinal transmission gear 51, and the end of the rod-shaped part is rotatably connected to the longitudinal connecting rod 53. The connection between the rod-shaped part and the fan-shaped part of the second balance block 56 is rotatably connected to the center of the transverse transmission gear 52, and the end of the rod-shaped part is rotatably connected to the transverse connecting rod 54, thereby achieving counterweight.

[0056] Please refer to Figure 9 and Figure 10 Furthermore, the mobile transmission assembly 50 also includes a fixed plate 57 connected to the main frame 10, a main gear 58 rotatably connected to the fixed plate 57, a seedling transmission chain 59 meshing with the main gear 58, the longitudinal transmission gear 51 and the transverse transmission gear 52, and a misaligned transmission assembly 80 connected to the main gear 58. The mobile transmission assembly 50 is connected to the rotating rod 30 through the misaligned transmission assembly 80.

[0057] The rotating rod 30 rotates, transmitting power to the main gear 58 via the misaligned transmission assembly 80. The main gear 58 then transmits power to the longitudinal transmission gear 51 and the transverse transmission gear 52 via the seedling transmission chain 59. The misaligned transmission assembly 80 is used to change the position of the moving transmission assembly 50, so that the main gear 58 does not need to be coaxial with the rotating rod 30 to receive power transmitted by the rotating rod 30, resulting in a more rational overall structural spatial arrangement.

[0058] In addition, the moving transmission assembly 50 also includes a tension gear 510 rotatably connected to the fixed plate 57. The seedling transmission chain 59 is sequentially wound around and meshed with the main gear 58, the tension gear 510, the transverse transmission gear 52 and the longitudinal transmission gear 51 to form a closed loop. The fixed plate 57 is used to provide an installation position for the main gear 58, the transverse transmission gear 52 and the longitudinal transmission gear 51 and the tension gear 510.

[0059] Among them, the longitudinal transmission gear 51, the transverse transmission gear 52, the main gear 58, the tension gear 510, and the seedling chamber 116 of the seedling placement assembly 110 (described in detail later) are all located on the front of the fixed plate 57. The shaft of the longitudinal transmission gear 51 extends to the back of the fixed plate 57. The cam 65 of the opening and closing transmission assembly 60 is fixed on the connecting shaft. That is to say, the cam 65, the roller 64, and the swing rod 61 are all located on the back of the fixed plate 57. Furthermore, the first seedling placement gear 113, the second seedling placement gear 114, and the seedling placement transmission chain 115 of the misaligned transmission assembly 80 and the seedling placement assembly 110 are all located on the back of the fixed plate 57, making full use of the space on the front and back of the fixed plate 57 and increasing the compactness of the overall structure of the transplanter.

[0060] Please refer to Figure 4 and Figure 5 Furthermore, the misaligned transmission assembly 80 includes a first misaligned gear 81 coaxially connected to the rotating rod 30, a second misaligned gear 82 coaxially connected to the main gear 58, and a misaligned transmission chain 83 meshing with the first misaligned gear 81 and the second misaligned gear 82. The axial direction of the main gear 58 is parallel to the rotating rod 30 and the two are misaligned.

[0061] The first misaligned gear 81 rotates synchronously with the rotating rod 30 under the action of the rotating rod 30, and transmits power to the second misaligned gear 82 through the misaligned transmission chain 83. The second misaligned gear 82 then transmits power to the main gear 58, thus realizing the transmission of power.

[0062] Please refer to Figures 1 to 3 and Figure 12Furthermore, the adjustable-spacing transplanter also includes a soil covering assembly 100. The soil covering assembly 100 includes a longitudinally extending connecting rod 101 connected to the main frame 10, two soil covering wheels 102 rotatably connected to the bottom of the connecting rod 101, and a buffer spring 103 extending longitudinally and connected to the connecting rod 101 and the soil covering wheels 102. The distance between the two soil covering wheels 102 gradually approaches from top to bottom, and the center position between the two soil covering wheels 102 is located directly behind the duckbill 74. When the duckbill 74 forms a hole in the soil and inserts the seedling into the hole, the two soil covering wheels 102 of the soil covering assembly 100 move along both sides of the hole. While moving, they push the soil on both sides of the hole into the hole to fix the seedling in the hole. In addition, the buffer spring 103 can absorb the vibration generated by the soil covering wheels 102 during the movement through elastic force.

[0063] Please refer to Figures 1 to 5 as well as Figure 13 and Figure 14 The adjustable-spacing transplanter also includes a seedling placement assembly 110. The seedling placement assembly 110 includes a seedling placement tray 111 rotatably connected to the main frame 10, a plurality of seedling placement chambers 112 evenly spaced along the circumference of the seedling placement tray 111, a seedling lowering chamber 116 located below the seedling placement tray 111, and a first seedling placement gear 113, a second seedling placement gear 114, and a seedling placement transmission chain 115 for driving the seedling placement tray 111 to rotate. The top and bottom of the seedling placement chamber 112 are open, and the seedlings are placed manually into the seedling placement chamber 112. When the seedling placement chamber 112 rotates to be directly above the seedling lowering chamber 116, the seedlings fall from the seedling placement chamber 112 into the seedling lowering chamber 116. The seedling lowering chamber 116 is located directly above the seedling receiving chamber 71 of the seedling assembly 70. The seedlings that enter the seedling lowering chamber 116 continue to fall into the seedling receiving chamber 71 and enter the receiving cavity of the duckbill device 74 from the seedling receiving chamber 71. The first seedling placement gear 113 is coaxially connected to the longitudinal transmission gear 51 of the moving transmission assembly 50. The seedling placement transmission chain 115 is meshed with the first seedling placement gear 113 and the second seedling placement gear 114 to transmit the power of the first seedling placement gear 113 to the second seedling placement gear 114. The second seedling placement gear 114 is connected to the seedling placement tray 111 through a bevel gear to change the transmission direction and transmit the power to the seedling placement tray 111, causing the seedling placement tray 111 to rotate. The rotation axis of the second seedling placement gear 114 is horizontal, and the rotation axis of the seedling placement tray 111 is vertical, so as to ensure that the seedlings can be placed into the seedling bin 112 from top to bottom.

[0064] The main gear 58 of the moving transmission assembly 50 is equipped with a speed detector. By detecting the speed of the main gear 58, the planting spacing of the seedlings can be obtained according to a pre-formulated formula or the corresponding data of speed and plant spacing, making it convenient for the operator to adjust the planting spacing according to the speed of the main gear 58. The duckbill 74 of the seedling assembly 70 is equipped with a depth detector, which can detect the depth of the hole formed by the duckbill 74, allowing the operator to know the depth of the hole in real time and adjust it according to the actual planting depth requirements.

[0065] The walking wheels 20, moving transmission components 50, opening and closing transmission components 60, seedling components 70, staggered transmission components 80, height adjustment components 90, soil covering components 100, and seedling placement components 110 of the adjustable spacing transplanter can all be set to one corresponding to multiple components, for example, two of each.

[0066] In practical use, the operator can attach the transplanter to a tractor, sit on the tractor, start the tractor and drive 40, and drive the transplanter along the planting path to place the seedlings into the seedling placement chamber 112 of the seedling placement assembly 110. The seedlings rotate under the rotation of the seedling placement tray 111 until they are directly above the lower seedling chamber 116. After falling into the lower seedling chamber 116, the seedlings continue to fall, sequentially into the receiving chamber 71, the mounting box 72, and the receiving cavity of the duckbill device 74 of the seedling assembly 70. Simultaneously, the rotating rod 30 rotates, transmitting power to the moving transmission assembly 50 through the misaligned transmission assembly 80, and then sequentially through the misaligned transmission assembly 80 and the moving transmission assembly 50. The moving component 50 transmits power to the opening and closing transmission component 60. The moving transmission component 50 drives the duckbill 74 of the seedling component 70 downward to insert into the soil. As the duckbill 74 is inserted into the soil, the opening and closing transmission component 60 drives the duckbill 74 to open, placing the seedling into the soil. The duckbill 74 continues to move upward and close under the action of the moving transmission component 50 and the opening and closing transmission component 60, leaving the seedling in the soil and waiting for the next seedling to enter the receiving cavity of the duckbill 74. The transplanter continues to move, driving the two soil covering wheels 102 of the soil covering component 100 to push the soil on both sides of the hole where the seedling is placed into the hole, so as to fix the seedling in the hole. In this way, multiple seedlings are transplanted.

[0067] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A transplanter with adjustable plant spacing, characterized in that: The device includes a main frame, rotatably connected wheels and a rotating rod, a driver and a moving transmission assembly connected to the rotating rod, and an opening and closing transmission assembly and a seedling assembly connected to the moving transmission assembly. The main frame can be driven by the wheels to move at a constant speed along the planting path. The seedling assembly is connected to the opening and closing transmission assembly. The rotating rod can be driven by the driver to rotate relative to the main frame. The moving transmission assembly can be driven by the rotating rod to transmit power to the opening and closing transmission assembly and the seedling assembly. The seedling assembly can be driven by the moving transmission assembly to move longitudinally and by the opening and closing transmission assembly to switch between a seedling storage state and a seedling release state. The seedling assembly switches from the seedling release state to the seedling storage state while moving upward, and switches from the seedling storage state to the seedling release state while moving downward. The walking wheels and the rotating rod are relatively independent, and the drive is set to be adjustable in speed so as to adjust the longitudinal movement frequency and opening and closing frequency of the seedling component by different speeds, thereby changing the planting spacing of the seedlings.

2. The adjustable-spacing transplanter as described in claim 1, characterized in that: The seedling assembly includes a seedling receiving chamber, an installation box connected to the seedling receiving chamber, a connecting frame rotatably connected to the installation box, and a speckle connected to the connecting frame. A movement transmission component is connected to the seedling receiving chamber or the installation box to drive the seedling assembly to move. An opening and closing transmission component is connected to the connecting frame to drive the connecting frame to rotate relative to the installation box, thereby driving the speckle to open and close through the connecting frame. The speckle has a receiving cavity connected to the installation box, so that the seedlings can fall from the installation box into the receiving cavity. When the seedling assembly is in the seedling storage state, the speckle is closed to seal the receiving cavity. When the seedling assembly is in the seedling release state, the speckle is open to expose the receiving cavity.

3. The adjustable-spacing transplanter as described in claim 2, characterized in that: The seedling assembly also includes a depth adjuster connected to the moving transmission assembly and the seedling receiving chamber. The depth adjuster is configured to change the longitudinal position of the speckler relative to the moving transmission assembly, thereby changing the depth at which the speckler is inserted into the soil.

4. The adjustable-spacing transplanter as described in claim 3, characterized in that: The depth adjuster includes a lifting part and a driving part connected to the lifting part. The fixed end of the lifting part is connected to the moving transmission component, and the lifting end is connected to the seedling receiving chamber. Under the drive of the driving part, the lifting part drives the duckbill device to move longitudinally relative to the moving transmission component through the seedling receiving chamber.

5. The adjustable-spacing transplanter as described in claim 4, characterized in that: The depth adjuster also includes a guide rod connected to the seedling receiving chamber and a connecting plate connected to the moving transmission assembly. The guide rod extends vertically, and a guide hole is formed on the connecting plate. The guide rod is inserted into the guide hole and slides in cooperation with the connecting plate. When the lifting part drives the seedling receiving chamber to move longitudinally, the connecting plate slides along the extension direction of the guide rod.

6. The adjustable-spacing transplanter as described in claim 2, characterized in that: The opening and closing transmission assembly includes a swing arm rotatably mounted relative to the main frame, a pull rope connected to one end of the swing arm, and a sleeve fitted over the pull rope. One end of the sleeve is connected to the main frame. The connecting frame includes a first right half and a right half 1 rotatably connected to the mounting box. The first right half is connected to the other end of the pull rope, and the first left half is connected to the other end of the sleeve. The duckbill device includes a second right half connected to the first right half and a second left half connected to the right half 1. The swing arm can be driven to reciprocate and swing, and pull the pull rope under the swing action, so that the first right half drives the second right half to rotate in a direction away from the second left half, and the right half 1 drives the second left half to rotate in a direction away from the second right half, thereby switching from the seedling storage state to the seedling release state.

7. The adjustable-spacing transplanter as described in any one of claims 1 to 6, characterized in that: The moving transmission assembly includes a longitudinal transmission gear and a transverse transmission gear connected to the rotating rod, a longitudinal connecting rod eccentrically connected to the longitudinal transmission gear, and a transverse connecting rod eccentrically connected to the transverse transmission gear. The longitudinal connecting rod is connected to the seedling assembly to transmit the power of the longitudinal transmission gear to the seedling assembly, thereby driving the seedling assembly to move longitudinally. The transverse connecting rod is connected to the seedling assembly to transmit the power of the transverse transmission gear to the seedling assembly, thereby driving the seedling assembly to move laterally. While the seedling assembly moves downward relative to the main frame under the drive of the longitudinal connecting rod, it also moves backward relative to the main frame under the drive of the transverse connecting rod, so that the seedling assembly is stationary relative to the land in the seedling placement state.

8. The adjustable-spacing transplanter as described in claim 7, characterized in that: The moving transmission assembly further includes a first balance block and / or a second balance block, wherein the longitudinal transmission gear and the longitudinal connecting rod are connected through the first balance block, and the transverse transmission gear and the transverse connecting rod are connected through the second balance block.

9. The adjustable-spacing transplanter as described in claim 7, characterized in that: The moving transmission assembly also includes a fixed plate connected to the main frame, a main gear rotatably connected to the fixed plate, a seedling transmission chain meshing with the main gear, a longitudinal transmission gear and a transverse transmission gear, and a misaligned transmission assembly connected to the main gear. The moving transmission assembly is connected to the rotating rod through the misaligned transmission assembly.

10. The adjustable-spacing transplanter as described in claim 9, characterized in that: The misaligned transmission assembly includes a first misaligned gear coaxially connected to the rotating rod, a second misaligned gear coaxially connected to the main gear, and a misaligned transmission chain meshing with the first misaligned gear and the second misaligned gear. The rotating shaft of the main gear is parallel to the rotating rod and the two are misaligned.

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