Nursery transplanting mechanism for soilless culture planting

Abstract

The invention discloses a nursery transplanting mechanism for soilless culture planting, the nursery transplanting mechanism is used for transplanting seedlings to a cultivation pipe, the cultivation pipe is provided with a plurality of cultivation holes along the length direction, the nursery transplanting mechanism comprises: a transfer trolley movably arranged along the length direction of the cultivation pipe; a plurality of layers of conveying assemblies are arranged on the transfer trolley up and down at intervals and are used for loading batches of seedlings; the transfer table is arranged on the transfer trolley in a lifting mode, one end of the transfer table is provided with a feeding position used for being in butt joint with the conveying tail end of the conveying assembly, and the conveying assembly conveys the seedlings to the feeding position independently and intermittently; one end of the rocker arm is rotationally arranged on the transfer table, and the other end is provided with a grabbing assembly. The multiple layers of conveying assemblies are arranged to be matched with the multiple layers of cultivation pipes, then the transfer table is lifted to be in butt joint with the conveying assemblies in sequence to conduct transplanting work, during planting, the rocker arm rotates to be matched with the grabbing assembly to grab and put down seedlings, automatic transplanting is achieved, labor is greatly saved, and the three-dimensional soilless cultivation pipeline structure is well adapted.

Description

Technical Field

[0001] The invention relates to the technical field of soilless cultivation, and in particular to a nursery transplanting mechanism used for soilless cultivation. Background Art

[0002] Hydroponics is a new type of soilless plant cultivation method, also known as nutrient solution culture. Its core is to directly immerse the roots of plants in nutrient solution. This nutrient solution can replace soil and provide plants with water, nutrients, oxygen and other growth factors, so that plants can grow normally. It is usually carried out in a circulating pipeline. Specifically, a multi-layer three-dimensional perforated pipeline will be set up, and then the pipeline will be connected to the circulation and filtration system of the nutrient solution. The plants to be planted are planted in the cultivation holes on the pipeline at fixed points.

[0003] Patent document CN115486242A disclosed a soilless crop transplanting device on December 20, 2022, which is designed to solve the problem of low manual labor efficiency in the existing transplanting process. The soilless crop transplanting device includes a seedling supply device, a seedling lifting device and a seedling transplanting device. The seedling supply device is arranged upstream of the seedling lifting device and is used to provide seedlings arranged in rows to the seedling lifting device. The seedling lifting device is arranged at the outlet of the seedling supply device and is used to lower the position of the seedlings arranged in rows. The seedling transplanting device is used to clamp and release the seedlings from the bottom of the seedlings through the planting holes. The soilless crop transplanting device provided by the present invention can improve the labor efficiency during the transplanting process.

[0004] As in the prior art of the above-mentioned patent, there is a transplanting device that can greatly save manual operation. However, when using such equipment, the problem of automatic transplanting cannot be well solved for the common three-dimensional soilless cultivation pipeline structure. Therefore, a nursery transplanting mechanism for soilless cultivation is urgently needed to solve the above problem. Summary of the invention

[0005] The object of the present invention is to provide a nursery transplanting mechanism for soilless cultivation to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A nursery transplanting mechanism for soilless cultivation is used for transplanting seedlings onto a cultivation tube, on which a plurality of cultivation holes are arranged along the length direction, comprising: a transfer vehicle, which is movably arranged along the length direction of the cultivation tube; a conveying assembly, which is provided with multiple layers at intervals up and down on the transfer vehicle, and is used for loading batches of seedlings; a transfer platform, which is liftably arranged on the transfer vehicle, and one end of which is provided with a loading position for docking with the conveying end of the conveying assembly, and the conveying assembly transports the seedlings individually and intermittently to the loading position; a rocker arm, one end of which is rotatably arranged on the transfer platform, and the other end of which is provided with a grabbing assembly, which grabs the seedlings when driven by the rocker arm to the corresponding loading position, and puts down the seedlings when driven by the rocker arm to the corresponding cultivation hole.

[0008] Preferably, the conveying assembly includes at least two rollers rotatably arranged on a transfer vehicle, a conveyor belt is sleeved on the roller, a baffle is arranged on the upper edge of the conveyor belt, and a diverter plate is arranged at the middle position of the conveying end, and the interval between the baffle and one side of the diverter plate is only sufficient for a single seedling to pass through.

[0009] Preferably, a screw is rotatably provided on the transfer vehicle, an internal threaded sleeve which is threadably sleeved with the screw is penetrated and connected on the transfer platform, and a rotary drive unit which drives the screw to rotate is installed on the top of the transfer vehicle.

[0010] Preferably, a rotating seat is rotatably arranged on the transfer platform, the rocker arm is connected to the rotating seat, and a driving component for driving the rotating seat to rotate is arranged at the bottom of the transfer platform.

[0011] Preferably, a driving bin is provided at the bottom of the transfer platform, and the driving assembly includes a driving shaft rotatably arranged in the driving bin, a first bevel gear is coaxially connected to the driving shaft, the rotating shaft of the rotating seat rotates through the transfer platform and extends into the driving bin, and is also coaxially connected to a second bevel gear meshing with the first bevel gear.

[0012] Preferably, the grabbing assembly includes two symmetrical claw rods elastically rotatably arranged at one end of a rocker arm away from a rotating seat, a sliding rod is slidably connected to the rocker arm, and the sliding rod is movably connected to the outer side of the claw rod through a connecting piece, and a limiting assembly is provided on the rocker arm to limit the sliding rod at a position close to one end of the rotating seat during the active stroke, and the limiting assembly cancels the limiting when the grabbing assembly corresponds to the loading position, and one end of the sliding rod slides through the rocker arm arrangement, and a hook assembly matching the sliding rod is provided on the transfer platform, and the hook assembly is hooked with the sliding rod when the grabbing assembly corresponds to the cultivation hole.

[0013] Preferably, the rocker arm is rotatably arranged on the rotating seat and is linked with the rotation of the rotating seat.

[0014] Preferably, a worm is rotatably arranged in the rotating seat, one end of the rotating shaft of the rocker arm extends into the rotating seat and is coaxially connected to a worm wheel, the worm is unidirectionally connected to a positioning shaft, the lower end of the positioning shaft rotates through the rotating seat and is coaxially connected to a positioning gear, and an arc-shaped rack matching the positioning gear is arranged on the transfer platform.

[0015] Preferably, the limiting assembly includes a pressing rod elastically and movably arranged on the side wall of the rocker arm, the pressing rod is provided with a limiting block that can extend into the movable stroke of the sliding rod, and an abutment piece matching the pressing rod is fixedly arranged on the inner side of the transfer platform relative to the rocker arm.

[0016] Preferably, the hook assembly includes a telescopic drive unit installed on the transfer platform, a hook body is provided at the output end of the telescopic drive unit, and a pressure switch is provided on the side wall of the telescopic drive unit. When the grabbing assembly corresponds to the cultivation hole, the pressure switch is pressed by the rocker arm to trigger the contraction of the telescopic drive unit, otherwise the telescopic drive unit automatically extends.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] The nursery transplanting mechanism for soilless cultivation is provided with a multi-layer conveying assembly to match a multi-layer cultivation tube, and then the transfer platform is lifted and lowered to sequentially connect with each conveying assembly to perform transplanting work. During planting, the conveying assembly connected with the transfer platform sends the seedlings to the loading position individually, and the rocker arm rotates again to correspond the grabbing assembly to the loading position, the grabbing assembly grabs the seedlings, and then the rocker arm rotates toward the outside of the transfer platform to correspond to the top of the cultivation hole, the grabbing assembly puts down the seedlings, and the seedlings fall into the cultivation hole to complete the planting, and then the transfer vehicle moves along the length direction of the cultivation tube toward the direction of the unplanted cultivation hole, that is, continues to perform automatic transplanting, greatly saves labor, and is extremely suitable for the three-dimensional soilless cultivation pipeline structure.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a transfer vehicle provided in an embodiment of the present invention;

[0024] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 A schematic diagram of a side cross-sectional structure of a transfer vehicle provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a front cross-sectional structure of a transfer vehicle provided in an embodiment of the present invention;

[0027] Figure 6 The embodiment of the present invention provides Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 7 A schematic diagram of a side cross-sectional structure of a transfer vehicle at a rotating seat provided in an embodiment of the present invention;

[0029] Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the enlarged structure at C in the middle;

[0030] Fig. 9 A schematic diagram of a top-down cross-sectional structure of a transfer vehicle provided in an embodiment of the present invention;

[0031] Fig.10 A schematic diagram of the front cross-sectional structure of a transfer vehicle at a pressing rod provided by an embodiment of the present invention;

[0032] Fig.11 The embodiment of the present invention provides Fig.10 Schematic diagram of the enlarged structure at D in the middle;

[0033] Fig.12 A schematic diagram of a side cross-sectional structure of a swing arm provided in an embodiment of the present invention;

[0034] Fig.13 A schematic diagram of the top cross-sectional structure of the transfer platform at the arc-shaped rack provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Cultivation tube; 2. Cultivation hole; 3. Seedling; 4. Transfer vehicle; 5. Transfer platform; 6. Rocker arm; 7. Roller; 8. Conveyor belt; 9. Baffle; 10. Diverter plate; 11. Screw; 12. Internal thread sleeve; 13. Rotary drive unit; 14. Rotary seat; 15. Drive bin; 16. Drive shaft; 17. First bevel gear; 18. Second bevel gear; 19. Claw rod; 20. Sliding rod; 21. Connector; 22. Worm; 23. Worm wheel; 24. Positioning shaft; 25. Positioning gear; 26. Arc rack; 27. Press rod; 28. Limit block; 29. ​​Abutment; 30. Telescopic drive unit; 31. Hook body; 32. Pressure switch; 33. First gear; 34. Second gear. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] See also Figure 1-13 The embodiment of the present invention provides a nursery transplanting mechanism for soilless cultivation, which is used for transplanting seedlings 3 onto a cultivation tube 1, and a plurality of cultivation holes 2 are arranged on the cultivation tube 1 along the length direction, including: a transfer vehicle 4, which is movably arranged along the length direction of the cultivation tube 1; a conveying component, which is provided with multiple layers at intervals on the transfer vehicle 4, for loading batches of seedlings 3; a transfer platform 5, which can be raised and lowered on the transfer vehicle 4, and one end of which is provided with a loading position for docking with the conveying end of the conveying component, and the conveying component transports the seedlings 3 to the loading position individually and intermittently; a rocker arm 6, one end of which is rotatably arranged on the transfer platform 5, and the other end of which is provided with a grabbing component, which grabs the seedlings 3 when driven by the rocker arm 6 to the corresponding loading position, and puts down the seedlings 3 when driven by the rocker arm 6 to the corresponding cultivation hole 2.

[0039] Specifically, in the actual cultivation structure, the cultivation tube 1 is arranged horizontally, and multiple tubes are arranged at intervals in the height direction, and are fixed as a group by brackets at both ends. Multiple groups of cultivation tubes 1 are arranged in parallel and spaced in the middle to facilitate the passage of personnel; the seedling 3 includes a substrate with an approximately cylindrical bottom and a body cultivated above the substrate. The seedling 3 is placed on the conveying component with the substrate part for conveying, and similarly, the grabbing component grabs the substrate part; preferably, a net tube or a net bag is arranged in the cultivation hole 2 to facilitate the positioning of the seedling 3 in the cultivation hole 2 after transplanting. The transfer vehicle 4 moves along the length direction of the cultivation tube 1 between two adjacent groups of cultivation tubes 1, and can be controlled by the servo system to move intermittently at a fixed distance, and the distance of each movement is consistent with the spacing between two adjacent cultivation holes 2; the transfer vehicle 4 is in the shape of a rectangular frame, and can be divided into two parts in the moving direction, one part is used to set the conveying component, and the other part is used to set the transfer platform 5. The number of conveying components is consistent with the number of cultivation tubes 1 contained in a group of cultivation tubes 1, and the heights are matched one by one. The transfer platform 5 is in the shape of a flat plate and is arranged at the conveying end of the conveying assembly. A transition piece is arranged at the conveying end of the conveying assembly. The upper surface of the transition piece is inclined downward and points to the direction of the transfer platform 5. The transfer platform 5 is docked with the conveying assembly, that is, one end is close to the lowest position of the transition piece, thereby ensuring that the seedlings 3 conveyed by the conveying assembly can automatically fall on the transfer platform 5. Two loading positions are symmetrically arranged on the transfer platform 5 to match the two groups of cultivation tubes 1 on both sides; accordingly, two groups of rocker arms 6 and grabbing assemblies are symmetrically arranged, thereby transplanting work on both sides can be carried out simultaneously; the rocker arm 6 rotates horizontally, and the rotation range is preferably 90°. At the two ends of the rotation range of the rocker arm 6, the extension direction of the rocker arm 6 is parallel to the length direction of the cultivation tube 1 and one end of the grabbing assembly is pointed to the direction of the conveying assembly, and the extension direction of the rocker arm 6 is perpendicular to the length direction of the cultivation tube 1 and the grabbing assembly extends out of the transfer platform 5. In actual use of the present technical solution, the transfer vehicle 4 starts to move from the vicinity of one end of the cultivation tube 1, and the transfer platform 5 first docks with the lowest conveying component. At the same time, only the lowest conveying component docked with the transfer platform 5 works. During transplanting, the conveying component sends the seedling 3 to the loading position alone, and the rocker arm 6 rotates again to correspond to the grabbing component to the loading position. The grabbing component grabs the seedling 3, and then the rocker arm 6 rotates to the outside of the transfer platform 5 to correspond to the top of the cultivation hole 2. The grabbing component puts down the seedling 3, and the seedling 3 falls into the cultivation hole 2 to complete the transplanting. Subsequently, the transfer vehicle 4 moves along the length direction of the cultivation tube 1 toward the direction of the untransplanted cultivation hole 2, that is, continues to repeat the above process for automatic transplanting; when the transplanting of one layer of cultivation tube 1 is completed, the transfer platform 5 can rise and switch to dock with the upper layer of conveying components, and then transplant the seedlings 3 on the upper layer of cultivation tube 1 according to the above process; this greatly saves labor and is extremely well adapted to the three-dimensional soilless cultivation pipeline structure.

[0040] Compared with the prior art, a nursery transplanting mechanism for soilless cultivation proposed in an embodiment of the present invention matches a multi-layer cultivation tube 1 by setting a multi-layer conveying assembly, and then sequentially docks each conveying assembly through the lifting and lowering of the transfer platform 5 to perform transplanting. During transplanting, the conveying assembly docked with the transfer platform 5 delivers the seedling 3 to the loading position alone, and the rocker arm 6 rotates again to correspond the grabbing assembly to the loading position, the grabbing assembly grabs the seedling 3, and then the rocker arm 6 rotates toward the outside of the transfer platform 5 to correspond to the top of the cultivation hole 2, the grabbing assembly puts down the seedling 3, and the seedling 3 falls into the cultivation hole 2 to complete the transplanting, and then the transfer vehicle 4 moves along the length direction of the cultivation tube 1 toward the direction of the untransplanted cultivation hole 2, that is, continues to perform automatic transplanting, greatly saves labor, and is extremely well adapted to the three-dimensional soilless cultivation pipeline structure.

[0041] As a preferred technical solution of this embodiment, the conveying assembly includes at least two rollers 7 rotatably arranged on the transfer vehicle 4, a conveyor belt 8 is sleeved on the roller 7, a baffle 9 is arranged on the upper edge of the conveyor belt 8, and a diverter plate 10 is arranged in the middle position of the conveying end, and the interval between the baffle 9 and one side of the diverter plate 10 is only for a single seedling 3 to pass through. Specifically, the roller 7 is controlled by a servo system, and when the height of the transfer platform 5 matches the height of one of the conveying assemblies, the roller 7 of the corresponding conveying assembly can be triggered to roll under the control of the servo system; the upper surface of the conveyor belt 8 is horizontal and roughly arranged, and the conveyor belt 8 rolls intermittently; the diverter plate 10 is V-shaped, with the tip facing the inner side of the conveyor belt 8, and the end portion is continuously and gently reduced in the extension direction. The minimum spacing at the end matches the outer diameter of the matrix part of the seedling 3; the position where the end of the diverter plate 10 is guided by the baffle 9 is just opposite to the loading position; under the rolling of the conveyor belt 8, the seedling 3 moves along the baffle 9 and the diverter plate 10, and finally a single seedling 3 is sent out at the conveying end of the conveyor belt 8 and moves to the loading position.

[0042] As the preferred technical solution of this embodiment, a screw 11 is rotatably provided on the transfer trolley 4, an internal threaded sleeve 12 threadedly connected to the screw 11 is penetrated and connected on the transfer platform 5, and a rotation drive unit 13 for driving the screw 11 to rotate is installed on the top of the transfer trolley 4. Specifically, a sliding sleeve that is movably engaged with the transfer trolley 4 is provided on the side wall of the transfer platform 5, thereby stabilizing the transfer platform 5 to only perform lifting and lowering movements; the rotation drive unit 13 can preferably be a servo motor, and its output end is coaxially connected to the screw 11; under the control of the servo system, when the rotation drive unit 13 is started, the screw 11 rotates, and then threaded feed transmission occurs with the internal threaded sleeve 12, thereby realizing the lifting and lowering control of the transfer platform 5.

[0043] As the preferred technical solution of this embodiment, a rotating seat 14 is rotatably arranged on the transfer platform 5, and the rocker arm 6 is connected to the rotating seat 14. A driving component for driving the rotating seat 14 to rotate is arranged at the bottom of the transfer platform 5. Specifically, the rotating shaft of the rotating seat 14 is vertically arranged, and the rotating seat 14 is driven by the driving component, and then drives the rocker arm 6 to rotate together. The rotation range of the rotating seat 14 is 90°.

[0044] As a further preferred technical solution of this embodiment, a driving bin 15 is provided at the bottom of the transfer platform 5, and the driving component includes a driving shaft 16 rotatably arranged in the driving bin 15, and a first bevel gear 17 is coaxially connected to the driving shaft 16. The rotating shaft of the rotating seat 14 rotates through the transfer platform 5 and extends into the driving bin 15, and is also coaxially connected to a second bevel gear 18 meshing with the first bevel gear 17. Specifically, under two sets of conditions set for the rocker arm 6 and the grabbing component, the two rocker arms 6 can rotate synchronously in opposite directions under the drive of the driving component, that is, symmetrical rotation; the driving shaft 16 is connected to the rotating shafts of the two rotating seats 14 by means of the first bevel gear 17 meshing with the second bevel gear 18, and the two first bevel gears 17 are symmetrically arranged, thereby realizing the synchronous rotation of the two rotating seats 14 in opposite directions; the driving shaft 16 is controlled to rotate by the servo system, and runs when the transfer vehicle 4 moves to the specified position and stops, so that the rocker arm 6 completes a back and forth rotation, allowing the grabbing component to complete the transplanting work.

[0045] As the preferred technical solution of this embodiment, the grabbing assembly includes two symmetrical claw rods 19 elastically rotatably arranged at one end of the rocker arm 6 away from the rotating seat 14, a sliding rod 20 is slidably connected to the rocker arm 6, and the sliding rod 20 is movably connected to the outer side of the claw rod 19 through a connecting piece 21, and a limiting assembly is provided on the rocker arm 6 to limit the sliding rod 20 to a position close to one end of the rotating seat 14 during the active stroke, and the limiting assembly cancels the limiting when the grabbing assembly corresponds to the loading position, and one end of the sliding rod 20 slides through the rocker arm 6, and a hook assembly matching the sliding rod 20 is provided on the transfer platform 5. The hook assembly is arranged at the corresponding cultivation position of the grabbing assembly The claw rod 19 is hooked with the sliding rod 20 when the rocker arm 6 is clamped. Specifically, the inner side of the claw rod 19 is roughened to ensure that the seedling 3 is not easily slipped when clamped. The position where the claw rod 19 is hinged to the rocker arm 6 is connected by a torsion spring, thereby making the claw rod 19 have rotational elasticity. When the claw rod 19 is not under force, the two claw rods 19 remain close to each other, and the minimum spacing is sufficient to clamp the seedling 3. The sliding direction of the sliding rod 20 is along the extension direction of the rocker arm 6, and the axial direction of the sliding rod 20 is perpendicular to the extension direction of the rocker arm 6. The side wall of the rocker arm 6 is provided with a sliding groove matching the sliding rod 20. The connecting piece 21 is hinged to the outer side of the claw rod 19, and the rotation of the claw rod 19 is transmitted through the connecting piece 21. , so that the sliding rod 20 slides along the side wall of the rocker arm 6, when the claw rod 19 is opened, the sliding rod 20 slides toward the direction close to the rotating seat 14, and when the claw rod 19 is closed, the sliding rod 20 slides away from the rotating seat 14; the limiting component limits the sliding rod 20 at a position close to one end of the rotating seat 14 in the active stroke, that is, the claw rod 19 is kept in an open state, and the limiting component cancels the limit when the rocker arm 6 rotates to make the grabbing component correspond to the feeding position, that is, when the seedlings 3 are fed into the feeding position, the claw rod 19 is closed to smoothly clamp the seedlings 3; the sliding rod 20 extends out of the rocker arm 6 in the vertical direction, and the hook assembly is used to move the sliding rod 20 The hook assembly is pulled, and the pulling direction is perpendicular to the length direction of the cultivation tube 1 on the horizontal plane. Then, when the rocker arm 6 drives the grabbing assembly to rotate out of the transfer platform 5 and corresponds to the cultivation hole 2, the pulling direction of the hook assembly is parallel to the activity direction of the sliding rod 20 at this time; the hook assembly pulls the sliding rod 20 to open the claw rod 19, and the sliding rod 20 is pulled by the hook assembly to move to a position close to one end of the rotating seat 14 in the activity stroke and trigger the limit assembly to limit. Then, the claw rod 19 remains in the open state and rotates back to the position corresponding to the loading position with the rocker arm 6, and then triggers the limit assembly to cancel the limit, and the claw rod 19 resumes the clamping state.

[0046] As a preferred technical solution of this embodiment, the rocker arm 6 is rotatably arranged on the rotating seat 14 and is linked with the rotation of the rotating seat 14. Specifically, the rotation axis of the rocker arm 6 is arranged to intersect perpendicularly with the rotation axis of the rotating seat 14. The height of the rocker arm 6 on the transfer platform 5 satisfies that the rocker arm 6 drives the rotation of the structure thereon without interference. The rocker arm 6 is linked with the rotating seat 14, specifically: when the rotating seat 14 rotates 90°, the rocker arm 6 rotates 180° and flips. When the rocker arm 6 flips, the hook assembly triggers the claw rod 19 on the outside of the rocker arm 6 to open, and then when the rocker arm 6 rotates with the rotary seat 14, the opened claw rod 19 switches to the inside of the rocker arm 6 under the action of the rocker arm 6 flipping, and the other claw rod 19 that remains in the clamping state switches to the outside of the rocker arm 6. As a result, the claw rod 19 in the clamping state can be blocked outside the loading position to prevent subsequent seedlings 3 from accidentally sliding out of the transfer platform 5 due to the squeezing or inertia of subsequent seedlings 3 when they are sent to the loading position through the conveying assembly; and the separate opening and closing of the claw rod 19 facilitates the clamping and putting down of the seedlings 3. At the same time, the claw rod 19 and the rocker arm 6 will not interfere with the seedlings 3 that have been transplanted in the cultivation hole 2 when they rotate with the rotary seat 14.

[0047] As the preferred technical scheme of this embodiment, a worm 22 is rotatably arranged in the rotating seat 14, one end of the rotating shaft of the rocker arm 6 extends into the rotating seat 14 and is coaxially connected with a worm wheel 23, the worm 22 is unidirectionally connected with a positioning shaft 24, the lower end of the positioning shaft 24 rotates through the rotating seat 14 and is coaxially connected with a positioning gear 25, and an arc-shaped rack 26 matching the positioning gear 25 is arranged on the transfer platform 5. Specifically, the lower end of the worm 22 is coaxially connected with a first gear 33, and the upper end of the positioning shaft 24 is coaxially connected with a second gear 34 meshing with the first gear 33 through a one-way bearing or a ratchet and pawl mechanism. The unidirectional transmission of the worm 22 and the positioning shaft 24, and the damping of the transmission of the worm 22 and the worm wheel 23, make it possible for the positioning gear 25 and the arc-shaped rack 26 to mesh with the first gear 33 only when the rotating seat 14 drives the rocker arm 6 to rotate from the outside of the transfer platform 5 to the inside of the transfer platform 5. The transmission of the arc rack 26 drives the positioning shaft 24, which is then transmitted to the worm 22 to rotate, and then the worm 22 and the worm wheel 23 are transmitted to drive the rocker 6 to rotate. When the rotary seat 14 drives the rocker 6 to rotate from the inside of the transfer platform 5 to the outside of the transfer platform 5, the transmission of the positioning gear 25 and the arc rack 26 drives the positioning shaft 24, but will not be transmitted to the worm 22, and the rocker 6 will not rotate; the rotation direction of the rocker 6 is the same each time it rotates, and the claw rod 19 opened on one side is rotated upward to flip over; preferably, the teeth of the arc rack 26 are arranged in the middle part of the rotation range of the rotary seat 14, thereby avoiding the rotation of the rocker 6 at the beginning and end of the rotation of the rotary seat 14. In other words, the rocker 6 rotates only after deviating from the transfer platform 5 or the cultivation tube 1 for a certain distance, thereby avoiding interference.

[0048] As the preferred technical solution of this embodiment, the limit assembly includes a pressing rod 27 elastically and movably arranged on the side wall of the rocker arm 6, and a limiting block 28 which can extend into the movable stroke of the sliding rod 20 is arranged on the pressing rod 27. An abutment member 29 matching the pressing rod 27 is fixedly arranged on the inner side of the transfer platform 5 relative to the rocker arm 6. Specifically, an elastic member is connected between one end of the pressing rod 27 connected to the rocker arm 6 and the inside of the rocker arm 6. The elastic member elastically pushes the pressing rod 27 so that one end of the pressing rod 27 automatically keeps extending out of the side wall of the rocker arm 6; the pressing rod 27 is arranged at the end of the sliding rod 20 that does not extend out of the rocker arm 6, and the limiting block 28 is triangular in shape and is arranged on the side of the pressing rod 27 close to the sliding rod 20. The limiting block 28 is arranged on the side away from the rotating seat 14 with an inclined surface, which can perform wedge-shaped extrusion with the end of the sliding rod 20 that does not extend out of the rocker arm 6; when the sliding rod 20 moves toward the direction close to the rotating seat 14 , the inclined surface of the limit block 28 can be squeezed, so that the limit block 28 is forced to drive the pressing rod 27 to retract into the rocker arm 6, and then pass through the limit block 28, and after passing, the pressing rod 27 immediately elastically resets, and drives the limit block 28 to be limited to the side of the sliding rod 20 away from the rotating seat 14, thereby maintaining the sliding rod 20 at one end close to the rotating seat 14 in the moving stroke, that is, maintaining the corresponding claw rod 19 to remain open; then, when the pressing rod 27 is pressed by external force, it drives the limit block 28 to move and retract so as not to block the sliding rod 20, so that the claw rod 19 automatically resets to the clamping position under elastic rotation; the setting of the abutment 29, when the rocker arm 6 rotates back to the position where the grab assembly corresponds to the loading position, the extended end of the pressing rod 27 on the inner side of the rocker arm 6 can be against the abutment 29, that is, the pressing rod 27 is passively pressed, and then the limit on the sliding rod 20 is cancelled.

[0049] As the preferred technical solution of this embodiment, the hook assembly includes a telescopic drive unit 30 installed on the transfer platform 5, a hook body 31 is provided at the output end of the telescopic drive unit 30, and a pressure switch 32 is provided on the side wall of the telescopic drive unit 30. When the grabbing assembly corresponds to the cultivation hole 2, the pressure switch 32 is pressed by the rocker arm 6 to trigger the contraction of the telescopic drive unit 30, otherwise the telescopic drive unit 30 automatically extends. Specifically, the output end of the telescopic drive unit 30 and the hook body 31 form an "L" shape, and the telescopic direction is perpendicular to the length direction of the cultivation tube 1, and the bending direction points to the direction of the conveying assembly; under the action of the rocker arm 6 flipping, the rocker arm 6 rotates to the gripping assembly and the cultivation hole. 2, the lower end of the sliding rod 20 arranged on the side wall close to the hook assembly penetrates the extended rocker arm 6, and the hook assembly is also arranged corresponding to the height of the lower end of the sliding rod 20, so that the lower end of the sliding rod 20 is embedded in the inner side of the hook body 31 that is kept extended outside, and because the rocker arm 6 successively abuts and presses the pressure switch 32, the telescopic drive unit 30 starts to retract, thereby pulling the sliding rod 20 to approach the rotating seat 14, that is, the claw rod 19 on the side away from the conveying assembly rotates and opens, and until the sliding rod 20 is limited by the limiting assembly, thereafter, when the rocker arm 6 rotates back into the transfer platform 5, the pressure switch 32 stops being triggered, and the telescopic drive unit 30 automatically extends.

[0050] In actual use of the above technical solution, the rotating seat 14 drives the rocking arm 6 to rotate, so that the grabbing assembly is first located at the position corresponding to the cultivation hole 2, so that the claw rod 19 on the side away from the conveying assembly remains open, and then the rotating seat 14 drives the rocking arm 6 to rotate. During the rotation process, the positioning gear 25 is meshed with the arc-shaped rack 26 for transmission, and at this time, the transmission can be transmitted to the worm 22 to rotate, and the worm 22 then drives the rocking arm 6 to rotate through the worm wheel 23, so that the open claw rod 19 side rotates upward, and when the rotating seat 14 drives the rocking arm 6 When the grabbing assembly is close to the feeding position, the rocker arm 6 finally flips 180°, that is, the opened claw rod 19 switches to the inner side of the transfer platform 5. When the grabbing assembly corresponds to the feeding position, the pressing rod 27 and the abutment 29 on the corresponding side of the opened claw rod 19 abut against each other, and the pressing rod 27 drives the limit block 28 to retract so as not to block the sliding rod 20. Therefore, the opened claw rod 19 is reset to the clamping position under the action of elastic rotation, and in this process, the conveying assembly delivers the single seedling 3 to the feeding position, and the outer side is kept The claw rod 19 at the clamping position can ensure that the seedling 3 does not deviate or fall, and the inner claw rod 19 can clamp the seedling 3; then, the rotating seat 14 drives the rocker arm 6 to rotate toward the outside of the transfer platform 5. During this process, the meshing transmission between the positioning gear 25 and the arc-shaped rack 26 will not drive the worm 22 to rotate, and the rocker arm 6 will not drive the seedling 3 to rotate; when the grabbing assembly corresponds to the cultivation hole 2, the end of the sliding rod 20 extending downward from the side of the conveying assembly of the rocker arm 6 is embedded in the inner side of the hook body 31, and the rocker arm 6 is pressed against the inner side of the hook body 31. The pressure switch 32 is connected to trigger the retraction of the output end of the telescopic drive unit 30, and the hook body 31 pulls the sliding rod 20 toward the rotating seat 14, so that the corresponding claw rod 19 slowly opens to allow the seedling 3 to be lowered and fall into the cultivation hole 2, and the retraction of the hook body 31 stops until the sliding rod 20 is at one end of the rotating seat 14 in the moving stroke and is limited by the limiting assembly; the above process is repeated, and the automatic transplanting work for the three-dimensional soilless cultivation pipeline structure can be realized in conjunction with the movement of the transfer vehicle 4 and the lifting of the transfer platform 5.

[0051] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A nursery transplanting mechanism for soilless cultivation, used for transplanting seedlings (3) onto a cultivation tube (1), wherein a plurality of cultivation holes (2) are arranged along the length direction of the cultivation tube (1), characterized in that: include: A transfer vehicle (4) is arranged to move along the length direction of the cultivation tube (1); A conveying assembly, which is provided with multiple layers spaced apart above and below on a transfer vehicle (4) for loading batches of seedlings (3); A transfer platform (5) is escalably arranged on the transfer vehicle (4), one end of which is provided with a loading position for docking with the conveying end of the conveying component, and the conveying component individually and intermittently transports the seedlings (3) to the loading position; A rocker arm (6) is rotatably arranged at one end on the transfer platform (5), and a grabbing assembly is arranged at the other end. The grabbing assembly grabs the seedling (3) when it is driven by the rocker arm (6) to a corresponding loading position, and puts down the seedling (3) when it is driven by the rocker arm (6) to a corresponding cultivation hole (2).

2. The nursery transplanting mechanism for soilless cultivation according to claim 1, characterized in that: The conveying assembly comprises at least two rollers (7) rotatably arranged on a transfer vehicle (4), a conveyor belt (8) being sleeved on the roller (7), a baffle (9) being arranged on the upper edge of the conveyor belt (8), and a diverter plate (10) being arranged in the middle of the conveying end, the interval between the baffle plate (9) and one side of the diverter plate (10) being only sufficient for a single seedling (3) to pass through.

3. The nursery transplanting mechanism for soilless cultivation according to claim 1, characterized in that: The transfer vehicle (4) is provided with a screw rod (11) for rotation, the transfer platform (5) is connected with an internal thread sleeve (12) threadedly sleeved with the screw rod (11), and a rotation driving unit (13) for driving the screw rod (11) to rotate is installed on the top of the transfer vehicle (4).

4. The nursery transplanting mechanism for soilless cultivation according to claim 1, characterized in that: A rotating seat (14) is rotatably arranged on the transfer platform (5), the rocker arm (6) is connected to the rotating seat (14), and a driving component for driving the rotating seat (14) to rotate is arranged at the bottom of the transfer platform (5).

5. The nursery transplanting mechanism for soilless cultivation according to claim 4, characterized in that: A driving bin (15) is arranged at the bottom of the transfer platform (5), and the driving assembly comprises a driving shaft (16) rotatably arranged in the driving bin (15), and a first bevel gear (17) is coaxially connected to the driving shaft (16). The rotating shaft of the rotating seat (14) rotates through the transfer platform (5) and extends into the driving bin (15), and is also coaxially connected to a second bevel gear (18) meshing with the first bevel gear (17).

6. The nursery transplanting mechanism for soilless cultivation according to claim 4, characterized in that: The grabbing assembly comprises two symmetrical claw rods (19) which are elastically rotatably arranged at one end of a rocker arm (6) away from a rotating seat (14); a sliding rod (20) is slidably connected to the rocker arm (6); the sliding rod (20) is movably connected to the outer side of the claw rod (19) through a connecting piece (21); a limiting assembly is arranged on the rocker arm (6) for limiting the sliding rod (20) at a position close to one end of the rotating seat (14) during the movable stroke; the limiting assembly cancels the limiting when the grabbing assembly corresponds to the loading position; one end of the sliding rod (20) is slidably arranged to penetrate the rocker arm (6); a hook assembly matching the sliding rod (20) is arranged on the transfer platform (5); the hook assembly is hooked with the sliding rod (20) when the grabbing assembly corresponds to the cultivation hole (2).

7. The nursery transplanting mechanism for soilless cultivation according to claim 6, characterized in that: The rocker arm (6) is rotatably arranged on the rotary seat (14) and is linked to the rotation of the rotary seat (14).

8. The nursery transplanting mechanism for soilless cultivation according to claim 7, characterized in that: A worm (22) is rotatably arranged in the rotating seat (14), one end of the rotating shaft of the rocker arm (6) extends into the rotating seat (14) and is coaxially connected to a worm wheel (23), the worm (22) is unidirectionally connected to a positioning shaft (24), the lower end of the positioning shaft (24) rotatably penetrates the rotating seat (14) and is coaxially connected to a positioning gear (25), and an arc-shaped rack (26) matching the positioning gear (25) is arranged on the transfer platform (5).

9. The nursery transplanting mechanism for soilless cultivation according to claim 6, characterized in that: The limiting assembly comprises a pressing rod (27) elastically and movably arranged on the side wall of the rocker arm (6); the pressing rod (27) is provided with a limiting block (28) which can extend into the movable stroke of the sliding rod (20); and an abutment member (29) matching the pressing rod (27) is fixedly arranged on the inner side of the transfer platform (5) relative to the rocker arm (6).

10. The nursery transplanting mechanism for soilless cultivation according to claim 6, characterized in that: The hook assembly comprises a telescopic drive unit (30) installed on a transfer platform (5); a hook body (31) is provided at the output end of the telescopic drive unit (30); a pressure switch (32) is provided on the side wall of the telescopic drive unit (30); when the grab assembly corresponds to the cultivation hole (2), the pressure switch (32) is pressed by a rocker arm (6) to trigger the telescopic drive unit (30) to retract; otherwise, the telescopic drive unit (30) automatically extends.

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