A nursery transplanting mechanism for soilless culture planting

Abstract

The application discloses a nursery transplanting mechanism for soilless cultivation planting, which is used for transplanting seedlings to a cultivation pipe, and the cultivation pipe is provided with a plurality of cultivation holes along the length direction, and comprises: a transfer trolley which is movably arranged along the length direction of the cultivation pipe; a conveying assembly which is arranged in multiple layers on the transfer trolley in an up-down interval and is used for loading batches of seedlings; a transfer table which is arranged on the transfer trolley in a liftable mode, and one end of the transfer table is provided with a feeding position which is used for docking a conveying end of the conveying assembly; the conveying assembly intermittently conveys the seedlings to the feeding position; and a rocker arm which is rotatably arranged on the transfer table at one end and is provided with a grabbing assembly at the other end. The multiple-layer conveying assembly is matched with the multiple-layer cultivation pipe, and then the transfer table is lifted to sequentially dock each conveying assembly to perform the transplanting work. When planting, the rocker arm is rotated to cooperate with the grabbing assembly to grab and put down the seedlings, automatic transplanting is realized, manual work is greatly saved, and the three-dimensional soilless cultivation pipe structure is well adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soilless culture, in particular to a nursery transplanting mechanism for soilless culture planting. BACKGROUND

[0002] Water culture is a new type of soilless culture of plants, also known as nutrient solution culture, the core of which is to immerse the roots of plants directly in nutrient solution, which can replace soil to provide water, nutrients, oxygen and other growth factors for plants, so that plants can grow normally. Usually, a circulating pipeline is used, and a multi-layered pipeline with holes is set up, and then the pipeline is connected to the circulating and filtering system of the nutrient solution. The plants are planted in the cultivation holes on the pipeline.

[0003] Patent document CN115486242A discloses a soilless culture crop transplanting device on December 20, 2022, which is designed to solve the problem of low labor efficiency in the existing transplanting process. The soilless culture 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 the seedling lifting device with a row of seedlings. The seedling lifting device is arranged at the outlet of the seedling supply device and is used to lower the position of the row of seedlings. The seedling transplanting device is used to clamp and release the seedlings from below the planting hole. The soilless culture crop transplanting device provided by the present application can improve the labor efficiency in the transplanting process.

[0004] As in the prior art of the above patent, there is a transplanting device that can greatly save manual operation. However, in the use of such devices, it is still difficult to solve the problem of automatic transplanting for common three-dimensional soilless culture pipeline structures, so there is an urgent need for a nursery transplanting mechanism for soilless culture planting to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a nursery transplanting mechanism for soilless culture planting to solve the above problems in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The nursery transplanting mechanism for soilless cultivation planting is used for transplanting seedlings to a cultivation pipe, and the cultivation pipe is provided with a plurality of cultivation holes along the length direction, and comprises: a transfer trolley which is movably arranged along the length direction of the cultivation pipe; a conveying assembly which is arranged in multiple layers on the transfer trolley in the up-down direction and is used for loading batches of seedlings; a transfer table which is arranged on the transfer trolley in a liftable manner, and one end of the transfer table is provided with a feeding position which is used for docking the conveying end of the conveying assembly, and the conveying assembly intermittently conveys the seedlings to the feeding position; and a rocker arm which is rotatably arranged on the transfer table at one end, and the other end of the rocker arm is provided with a grabbing assembly, the grabbing assembly grabs the seedlings when being driven to the corresponding feeding position by the rocker arm, and the grabbing assembly releases the seedlings when being driven to the corresponding cultivation hole by the rocker arm.

[0008] Preferably, the conveying assembly comprises at least two rollers which are rotatably arranged on the transfer trolley, a conveying belt is sleeved on the rollers, the upper edge of the conveying belt is provided with a baffle, and the middle position of the conveying end is provided with a shunt plate, and the baffle and one side of the shunt plate are only spaced apart to allow a single seedling to pass through.

[0009] Preferably, a screw is rotatably arranged on the transfer trolley, an internal thread sleeve which is threadedly sleeved with the screw is through-connected on the transfer table, and a rotary driving unit which drives the screw to rotate is mounted on the top of the transfer trolley.

[0010] Preferably, a rotary seat is rotatably arranged on the transfer table, the rocker arm is connected to the rotary seat, and a driving assembly which drives the rotary seat to rotate is arranged on the bottom of the transfer table.

[0011] Preferably, the driving assembly comprises a driving shaft which is rotatably arranged in a driving chamber arranged on the bottom of the transfer table, a first bevel gear is coaxially connected to the driving shaft, the rotating shaft of the rotary seat is rotatably through-connected to the transfer table and extends into the driving chamber, and a second bevel gear which is engaged with the first bevel gear is coaxially connected to the rotating shaft of the rotary seat.

[0012] Preferably, the grabbing assembly comprises two symmetrical claw rods which are elastically rotatably arranged at the end of the rocker arm away from the rotary seat, a sliding rod is slidably connected to the rocker arm, the sliding rod is movably connected to the outside of the claw rods through a connecting piece, a limiting assembly which limits the sliding rod to be located at the end of the rotary seat in the active stroke is arranged on the rocker arm, the limiting assembly is cancelled when the grabbing assembly is located at the corresponding feeding position, one end of the sliding rod is slidably through-connected to the rocker arm, a pulling hook assembly which is matched with the sliding rod is arranged on the transfer table, and the pulling hook assembly is hooked with the sliding rod when the grabbing assembly is located at the corresponding cultivation hole.

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

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

[0015] Preferably, the limiting component comprises a pressing rod elastically arranged on the side wall of the rocker arm, and a limiting block matched with the pressing rod is arranged on the pressing rod and can extend into the movement stroke of the sliding rod.

[0016] Preferably, the hook component comprises a telescopic driving unit mounted on the transfer table, the output end of the telescopic driving unit is provided with a hook body, and a pressure switch is arranged on the side wall of the telescopic driving unit; when the grabbing component corresponds to the cultivation hole, the pressure switch is triggered by the rocker arm to abut and press, so that the telescopic driving unit is retracted; otherwise, the telescopic driving unit is automatically elongated.

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

[0018] The nursery transplanting mechanism for soilless cultivation planting is provided with multiple layers of conveying components matched with multiple layers of cultivation tubes, and then the transfer table is lifted to sequentially dock each conveying component for transplanting work. When planting, the conveying component docked with the transfer table sends the seedlings to the feeding position separately, the rocker arm is rotated to correspond the feeding position to the grabbing component, the grabbing component grabs the seedlings, then the rocker arm is rotated to the outside of the transfer table to correspond to the top of the cultivation hole, the grabbing component drops the seedlings, 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 to the direction of the un-planted cultivation hole, that is, the automatic transplanting is continuously performed, which greatly saves labor and is well adapted to the three-dimensional soilless cultivation tube structure.

[0019] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, rather than limiting the overall scope or all features of the disclosed technology.

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

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0022] Figure 1 The overall structure schematic diagram provided for the embodiments of the present application;

[0023] Figure 2 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0024] Figure 3 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure; Figure 2 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0025] Figure 4 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0026] Figure 5 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0027] Figure 6 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure; Figure 5 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0028] Figure 7 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0029] Figure 8 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure; Figure 7 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0030] Figure 9 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0031] Figure 10 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0032] Figure 11 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure; Figure 10 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0033] Figure 12 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure;

[0034] Figure 13 The structure schematic diagram of the transfer trolley provided by the embodiment of the present application is shown in the figure.

[0035] Explanation of reference signs:

[0036] 1, cultivation tube; 2, cultivation hole; 3, seedling; 4, transfer trolley; 5, transfer table; 6, rocker arm; 7, roller; 8, conveying belt; 9, baffle; 10, shunt plate; 11, screw; 12, internally threaded 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, connecting piece; 22, worm; 23, worm wheel; 24, positioning shaft; 25, positioning gear; 26, arc-shaped rack; 27, pressing rod; 28, limiting block; 29, abutting piece; 30, telescopic drive unit; 31, hook body; 32, pressure switch; 33, first gear; 34, second gear. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0038] Please refer to Figures 1-13 The seedling nursery transplanting mechanism for soilless cultivation planting provided by the embodiments of the present disclosure is used for transplanting seedlings 3 to cultivation tubes 1, the cultivation tubes 1 are provided with a plurality of cultivation holes 2 along the length direction, and the seedling nursery transplanting mechanism comprises: a transfer trolley 4, which is movably arranged along the length direction of the cultivation tubes 1; a conveying assembly, which is arranged in multiple layers on the transfer trolley 4 in an up-down manner, and is used for loading batches of seedlings 3; a transfer table 5, which is arranged on the transfer trolley 4 in a liftable manner, and is provided with a feeding position at one end for docking the conveying end of the conveying assembly, and the conveying assembly intermittently conveys the seedlings 3 to the feeding position; a rocker arm 6, which is rotatably arranged at one end on the transfer table 5, and is provided with a grabbing assembly at the other end, and the grabbing assembly grabs the seedlings 3 when being driven by the rocker arm 6 to the corresponding feeding position, and releases the seedlings 3 when being driven by the rocker arm 6 to the corresponding cultivation hole 2.

[0039] Specifically, in the actual cultivation structure, the cultivation pipe 1 is horizontally arranged, and multiple cultivation pipes 1 are arranged at intervals in the height direction, and are fixed as a group through the support at both ends, multiple groups of cultivation pipes 1 are arranged side by side and are arranged with intervals in the middle to facilitate personnel to pass through; the seedling 3 includes a substrate which is approximately cylindrical at the bottom and a body which is cultured above the substrate, and the seedling 3 is placed on the conveying assembly with the substrate part for conveying, and similarly, the substrate part is grabbed by the grabbing assembly; preferably, a mesh tube or a mesh 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 trolley 4 moves along the length direction of the cultivation pipe 1 between the two adjacent groups of cultivation pipes 1, and can be controlled by the servo system to move intermittently at a distance, and the distance moved each time is consistent with the distance between the two adjacent cultivation holes 2; the transfer trolley 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 arrange the conveying assembly, and the other part is used to arrange the transfer table 5. The number of conveying assemblies is consistent with the number of cultivation pipes 1 contained in a group of cultivation pipes 1, and the heights are matched one by one. The transfer table 5 is in the shape of a flat plate, and is arranged at the conveying end of the conveying assembly. The conveying end of the conveying assembly is provided with a transition piece, the upper surface of the transition piece is inclined downward to the direction of the transfer table 5, and the transfer table 5 is connected with the conveying assembly, that is, one end is close to the lowest position of the transition piece, thereby ensuring that the seedling 3 conveyed by the conveying assembly can automatically fall on the transfer table 5. Two loading positions are symmetrically arranged on the transfer table 5 to match the two groups of cultivation pipes 1 on both sides; correspondingly, two groups of rocker arms 6 and grabbing assemblies are symmetrically arranged, thereby the transplanting work on both sides can be carried out at the same time; the rocker arm 6 rotates in the horizontal direction, and the rotation range is preferably 90°. At both 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 pipe 1 and the end of the grabbing assembly arranged is directed 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 pipe 1 and the grabbing assembly extends outside the transfer table 5. In actual use, the transfer trolley 4 starts to move from the vicinity of one end of the cultivation pipe 1, the transfer table 5 is first connected with the lowest conveying assembly, at the same time, only the conveying assembly connected with the transfer table 5 at the lowest layer works, during transplanting, the conveying assembly sends the seedling 3 to the loading position alone, the rocker arm 6 rotates to correspond to the loading position of the grabbing assembly, the grabbing assembly grabs the seedling 3, then the rocker arm 6 rotates to the outside of the transfer table 5 to correspond to the above of the cultivation hole 2, the grabbing assembly drops the seedling 3, the seedling 3 falls into the cultivation hole 2 to complete the transplanting, then the transfer trolley 4 moves along the length direction of the cultivation pipe 1 to the direction of the cultivation hole 2 which has not been transplanted, that is, the above process is repeated to automatically transplant; when the transplanting of one layer of cultivation pipes 1 is completed, the transfer table 5 can be raised to switch to connect with the conveying assembly of the upper layer, then the above process is carried out to transplant the seedlings 3 on the upper layer of cultivation pipes 1; in this way, the labor is greatly saved, and it is well adapted to the three-dimensional soilless cultivation pipe structure.

[0040] Compared with the prior art, the seedling nursery transplanting mechanism for soilless cultivation planting provided by the embodiment of the application matches the multi-layer cultivation pipe 1 by arranging the multi-layer conveying assembly, and then the conveying assembly is sequentially docked by lifting on the transfer table 5 to perform the transplanting work. When transplanting, the conveying assembly that is docked with the transfer table 5 sends the seedling 3 to the feeding position alone, the rocker arm 6 is rotated to correspond the feeding position to the grabbing assembly, the grabbing assembly grabs the seedling 3, then the rocker arm 6 is rotated to the outside of the transfer table 5 to correspond to the top of the cultivation hole 2, the grabbing assembly drops the seedling 3, the seedling 3 falls into the cultivation hole 2 to complete the transplanting, and then the transfer trolley 4 moves along the length direction of the cultivation pipe 1 to the direction of the cultivation hole 2 that is not transplanted, that is, the automatic transplanting is continuously performed, which greatly saves the labor and well adapts to the three-dimensional soilless cultivation pipe structure.

[0041] As a preferred technical solution of the embodiment, the conveying assembly comprises at least two rollers 7 that are rotationally arranged on the transfer trolley 4, the conveying belt 8 is sleeved on the roller 7, the upper edge of the conveying belt 8 is provided with the baffle 9, and the middle position of the conveying end is provided with the shunt plate 10. The interval between the baffle 9 and one side of the shunt plate 10 is only for a single seedling 3 to pass through. Specifically, the roller 7 is controlled by a servo system. When the height of the transfer table 5 is matched with 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 conveying belt 8 is horizontally and coarsely arranged. The conveying belt 8 is intermittently rolled. The shunt plate 10 is in a V shape, the tip end thereof faces the inside of the conveying belt 8, the end portion thereof continuously and gently reduces in size in the extension direction from the baffle 9, and the minimum size at the end thereof is matched with the outer diameter of the substrate part of the seedling 3. The end of the shunt plate 10 and the position guided by the baffle 9 are just opposite to the feeding position. Under the rolling of the conveying belt 8, the seedling 3 moves along the baffle 9 and the shunt plate 10, and finally a single seedling 3 is sent out at the conveying end of the conveying belt 8 and moves to the feeding position.

[0042] As a preferred technical solution of the embodiment, the screw 11 is rotationally arranged on the transfer trolley 4, the inner threaded sleeve 12 that is threadedly sleeved with the screw 11 is through-connected on the transfer table 5, and the rotary driving unit 13 that drives the rotation of the screw 11 is installed on the top of the transfer trolley 4. Specifically, the side wall of the transfer table 5 is provided with the sliding sleeve that is movably clamped on the transfer trolley 4, so that the transfer table 5 only moves up and down stably. The rotary driving unit 13 can be preferably a servo motor, and the output end thereof is coaxially connected with the screw 11. Under the control of the servo system, when the rotary driving unit 13 is started, the screw 11 rotates, and then threadedly feeds with the inner threaded sleeve 12 to realize the lifting control of the transfer table 5.

[0043] As a preferred technical scheme of the embodiment, the rotating seat 14 is arranged on the transfer table 5, the rocker arm 6 is connected to the rotating seat 14, the bottom of the transfer table 5 is provided with a driving assembly for driving the rotating seat 14 to rotate, and specifically, the rotating shaft of the rotating seat 14 is arranged vertically, the rotating seat 14 is driven by the driving assembly, and then the rocker arm 6 is driven to rotate together, and the rotating range of the rotating seat 14 is 90°.

[0044] As a further preferred technical scheme of the embodiment, the transfer table 5 is provided with a driving bin 15 at the bottom, the driving assembly comprises a driving shaft 16 arranged in rotation in the driving bin 15, the driving shaft 16 is coaxially connected with a first bevel gear 17, the rotating shaft of the rotating seat 14 penetrates through the transfer table 5 and extends into the driving bin 15, and is further coaxially connected with a second bevel gear 18 engaged with the first bevel gear 17, and specifically, in the case that the rocker arm 6 is provided with two groups of the grabbing assemblies, the two rocker arms 6 can be driven by the driving assembly to rotate in opposite directions synchronously, that is, to rotate symmetrically; the driving shaft 16 is connected with the rotating shafts of the two rotating seats 14 in a meshing mode of the first bevel gear 17 and the second bevel gear 18, the two first bevel gears 17 are arranged symmetrically, and then the two rotating seats 14 are driven to rotate in opposite directions synchronously; the driving shaft 16 is controlled to rotate by a servo system, and is operated when the transfer trolley 4 is stopped at a designated position, so that the rocker arm 6 completes one-way rotation, and the grabbing assembly completes the transplanting work.

[0045] As a preferred technical scheme of the embodiment, the grabbing assembly comprises two symmetrical claw rods 19 elastically arranged in a rotating manner away from one end of the rotating base 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 to limit the sliding rod 20 to a position close to one end of the rotating base 14 in the active stroke, the limiting assembly is cancelled when the grabbing assembly corresponds to the feeding position, one end of the sliding rod 20 is slidably arranged through the rocker arm 6, a pulling hook assembly is arranged on the transfer table 5 and matches the sliding rod 20, the pulling hook assembly is hooked with the sliding rod 20 when the grabbing assembly corresponds to the cultivation hole 2, specifically, the inner side of the claw rod 19 is coarsely arranged to ensure that the seedling 3 is not easy to slide off when clamped; the position where the claw rod 19 is hinged to the rocker arm 6 is connected through a torsional spring, so that the claw rod 19 has rotating elasticity, when the claw rod 19 is not stressed, the two claw rods 19 keep close to each other, and the minimum distance satisfies the clamping of the seedling 3; the sliding direction of the sliding rod 20 is along the extension direction of the rocker arm 6, the axial direction of the sliding rod 20 is perpendicular to the extension direction of the rocker arm 6; a sliding groove matching the sliding rod 20 is arranged on the side wall of the rocker arm 6; the connecting piece 21 is hinged to the outer side of the claw rod 19, the rotation of the claw rod 19 is transmitted through the connecting piece 21 to make the sliding rod 20 slide along the side wall of the rocker arm 6, when the claw rod 19 is opened, the sliding rod 20 slides towards the rotating base 14, when the claw rod 19 is closed, the sliding rod 20 slides away from the rotating base 14; the limiting assembly limits the sliding rod 20 to a position close to one end of the rotating base 14 in the active stroke, that is, the claw rod 19 is kept in the open state, and the limiting assembly is cancelled when the rocker arm 6 rotates to make the grabbing assembly correspond to the feeding position, that is, when the seedling 3 is fed into the feeding position, the claw rod 19 is closed to smoothly clamp the seedling 3; the sliding rod 20 extends out of the rocker arm 6 in the vertical direction, the pulling hook assembly is used to pull the sliding rod 20, and the pulling direction is perpendicular to the length direction of the cultivation pipe 1 on the horizontal plane, so that when the rocker arm 6 drives the grabbing assembly to rotate and move out of the transfer table 5 and correspond to the cultivation hole 2, the pulling direction of the pulling hook assembly is parallel to the active direction of the sliding rod 20 at this time; the pulling hook assembly pulls the sliding rod 20 to make the claw rod 19 open, and the sliding rod 20 is pulled by the pulling hook assembly and moves to a position close to one end of the rotating base 14 in the active stroke and triggers the limiting assembly to limit, then the claw rod 19 keeps the open state and rotates with the rocker arm 6 to return to the position corresponding to the feeding position, triggers the limiting assembly to cancel the limiting, and the claw rod 19 returns to the clamping state.

[0046] The rotating shaft of the rocker arm 6 is perpendicularly arranged with the rotating shaft of the rotating seat 14, and the height of the rocker arm 6 on the transfer table 5 satisfies the rotation of the rocker arm 6 and the structure thereon without interference. The rocker arm 6 is linked with the rotating seat 14, specifically, the rocker arm 6 is turned by 180° during the rotating seat 14 is turned by 90°. Under the condition that the rocker arm 6 is turned, the pulling hook assembly triggers the claw rod 19 outside the rocker arm 6 to be opened, and then when the rocker arm 6 is turned with the rotating seat 14, the opened claw rod 19 is switched to the inside of the rocker arm 6 under the action of the turning of the rocker arm 6, and the other claw rod 19 in the clamping state is switched to the outside of the rocker arm 6, so that the claw rod 19 in the clamping state can be shielded outside the feeding position, avoiding that the subsequent seedlings 3 are pushed or accidentally slide out of the transfer table 5 due to the extrusion of the subsequent seedlings 3 when the subsequent seedlings 3 are sent to the feeding position by the conveying assembly; and the separate opening and closing of the claw rod 19 facilitates the clamping and releasing of the seedlings 3, and meanwhile, the claw rod 19 and the rocker arm 6 do not interfere with the seedlings 3 which have been transplanted in the cultivation hole 2 when the rotating seat 14 is rotated.

[0047] As the preferred technical solution of the embodiment, the rotating seat 14 is internally rotatably provided with a worm 22, 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 is rotatably penetrated through the rotating seat 14 and is coaxially connected with a positioning gear 25, the transfer table 5 is provided with an arc-shaped gear rack 26 matched with the positioning gear 25, specifically, the lower end of the worm 22 is coaxially connected with a first gear 33, the upper end of the positioning shaft 24 is coaxially connected with a second gear 34 engaged with the first gear 33 through a one-way bearing or a ratchet pawl mechanism, the unidirectional transmission of the worm 22 and the positioning shaft 24, and the damping transmission of the worm 22 and the worm wheel 23, only when the rotating seat 14 drives the rocker arm 6 to rotate from outside the transfer table 5 to inside the transfer table 5, the transmission of the positioning gear 25 and the arc-shaped gear rack 26 drives the positioning shaft 24, and then the transmission is conducted to the worm 22 to rotate, and then the transmission of the worm 22 and the worm wheel 23 drives the rocker arm 6 to rotate, and when the rotating seat 14 drives the rocker arm 6 to rotate from inside the transfer table 5 to outside the transfer table 5, the transmission of the positioning gear 25 and the arc-shaped gear rack 26 drives the positioning shaft 24, but the transmission is not conducted to the worm 22, so that the rocker arm 6 does not rotate; the rotating direction of the rocker arm 6 is the same each time, and the one-side opened claw rod 19 is turned upward to be turned over; preferably, the teeth of the arc-shaped gear rack 26 are arranged at the middle part of the rotating range of the rotating seat 14, so that the rotating start and end of the rotating seat 14 does not drive the rocker arm 6 to rotate, in other words, the rocker arm 6 rotates after deviating from the transfer table 5 or the cultivation pipe 1 by a distance, avoiding interference.

[0048] As the preferred technical scheme of the embodiment, the limiting assembly comprises a pressing rod 27 elastically movably arranged on the side wall of the rocker 6, the pressing rod 27 is provided with a limiting block 28 capable of extending into the movable stroke of the sliding rod 20, the inner side of the transfer table 5 opposite to the rocker 6 is fixedly provided with an abutting member 29 matched with the pressing rod 27, specifically, the pressing rod 27 is connected between one end inside the rocker 6 and the inside of the rocker 6 and is connected with an elastic member, the elastic member elastically pushes the pressing rod 27, so that the one end of the pressing rod 27 is automatically kept extending out of the side wall of the rocker 6; the pressing rod 27 is arranged close to the one end of the sliding rod 20 not extending out of the rocker 6, the limiting block 28 is triangular, is arranged on the pressing rod 27 close to the side of the sliding rod 20, and is provided with an inclined surface on the side away from the rotary seat 14, capable of wedge-shaped extrusion with the one end of the sliding rod 20 not extending out of the rocker 6; when the sliding rod 20 moves towards the rotary seat 14, the inclined surface of the limiting block 28 can be extruded, so that the limiting block 28 is forced to drive the pressing rod 27 to retract into the rocker 6, and then the limiting block 28 can pass through, and after passing through, the pressing rod 27 is immediately elastically reset and drives the limiting block 28 to be limited on the side of the sliding rod 20 away from the rotary seat 14, so that the sliding rod 20 is maintained at the one end of the movable stroke close to the rotary seat 14, that is, the corresponding claw rod 19 is maintained to be kept open; then, when the pressing rod 27 is pressed by external force, the limiting block 28 is moved back to retract so as not to block the sliding rod 20, so that the claw rod 19 is automatically reset to the clamping position under the elastic rotation; when the rocker 6 is rotated back to the position of the corresponding feeding position of the grabbing assembly, the extending one end of the pressing rod 27 on the inner side of the rocker 6 can abut against the abutting member 29, that is, the pressing rod 27 is passively pressed, and then the limiting of the sliding rod 20 is cancelled.

[0049] As a preferred technical scheme of the embodiment, the hook assembly comprises a telescopic driving unit 30 installed on the transfer table 5, the output end of the telescopic driving unit 30 is provided with a hook body 31, and the side wall of the telescopic driving unit 30 is provided with a pressure switch 32. When the grabbing assembly corresponds to the cultivation hole 2, the pressure switch 32 is pressed and triggered by the abutment of the rocker arm 6 to make the telescopic driving unit 30 retract, otherwise the telescopic driving unit 30 automatically extends. Specifically, the output end of the telescopic driving unit 30 and the hook body 31 form an "L" shape, and the telescopic direction is perpendicular to the length direction of the cultivation pipe 1, and the bending direction points to the direction of the conveying assembly. Under the action of the rocker arm 6 turning over, when the rocker arm 6 rotates to correspond to the grabbing 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 and extends out of the rocker arm 6, and the hook assembly is also correspondingly arranged at the height of the lower end of the sliding rod 20 extending out, and then the lower end of the sliding rod 20 is embedded into the inside of the hook body 31 which is kept stretched out, and because the rocker arm 6 successively abuts and presses the pressure switch 32, the telescopic driving unit 30 starts to retract, thereby pulling the sliding rod 20 to move close to the rotary seat 14, that is, the claw rod 19 away from the conveying assembly side rotates and opens, and until the sliding rod 20 is limited by the limiting assembly, then when the rocker arm 6 rotates back into the transfer table 5, the pressure switch 32 stops triggering, and the telescopic driving unit 30 automatically extends.

[0050] In actual use, the rotating seat 14 drives the rocker arm 6 to rotate, so that the grabbing assembly is first positioned at a position corresponding to the cultivation hole 2, and then the rotating seat 14 drives the rocker arm 6 to rotate, in the rotating process, the positioning gear 25 meshes with the arc-shaped gear rack 26 to drive, and at this time, the worm 22 can be driven to rotate, the worm 22 drives the rocker arm 6 to rotate through the worm gear 23, so that the side of the open claw rod 19 rotates upward, and when the rotating seat 14 drives the rocker arm 6 to approach the loading position of the grabbing assembly, the rocker arm 6 finally rotates by 180°, that is, the open claw rod 19 is switched to the inside of the transfer table 5, when the grabbing assembly corresponds to the loading position, the pressing rod 27 and the abutting piece 29 on the side corresponding to the open claw rod 19 abut, the pressing rod 27 drives the limiting block 28 to retract so as not to block the sliding rod 20, so that the open claw rod 19 is reset to the clamping position under the elastic rotating action, and in this process, the conveying assembly sends a single seedling 3 to the loading position, the claw rod 19 on the outside keeps in the clamping position to ensure that the seedling 3 does not deviate or fall off, and the claw rod 19 on the inside can clamp the seedling 3; then, the rotating seat 14 drives the rocker arm 6 to rotate to the outside of the transfer table 5, in this process, the meshing transmission of the positioning gear 25 and the arc-shaped gear rack 26 does not drive the worm 22 to rotate, so the rocker arm 6 does not drive the seedling 3 to rotate; when the grabbing assembly corresponds to the cultivation hole 2, the end of the sliding rod 20 on the side of the rocker arm 6 away from the conveying assembly is embedded in the inside of the hook body 31, and the rocker arm 6 abuts against the pressure switch 32, so that the output end of the telescopic driving unit 30 triggers retraction, the hook body 31 pulls the sliding rod 20 to approach the rotating seat 14, so that the corresponding claw rod 19 slowly opens to make the seedling 3 be put down and fall into the cultivation hole 2, and the retraction of the hook body 31 stops when the sliding rod 20 approaches the one end of the rotating seat 14 and is limited by the limiting assembly; the above process is repeated, combined with the movement of the transfer trolley 4 and the lifting of the transfer table 5, so as to realize the automatic transplanting work for the three-dimensional soilless cultivation pipe structure.

[0051] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. 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 application.

Claims

1. A nursery transplanting mechanism for hydroponics, used for transplanting seedlings (3) onto a cultivation tube (1), wherein the cultivation tube (1) has a plurality of cultivation holes (2) arranged along its length, characterized in that, include: The transport vehicle (4) is set up to move along the length of the cultivation tube (1); The conveying assembly has multiple layers spaced vertically on the transfer vehicle (4) for loading batches of seedlings (3). The transfer platform (5) is raised and lowered on the transfer vehicle (4). One end of the platform is provided with a feeding position for connecting to the end of the conveying component. The conveying component transports the seedlings (3) to the feeding position separately and intermittently. The rocker arm (6) has one end rotatably mounted on the transfer table (5) and the other end is equipped with a gripping component. When the gripping component is driven by the rocker arm (6) to the corresponding feeding position, it grips the seedling (3), and when it is driven by the rocker arm (6) to the corresponding cultivation hole (2), it puts down the seedling (3). A rotating seat (14) is rotatably mounted on the transfer platform (5), and the rocker arm (6) is connected to the rotating seat (14). A drive assembly for driving the rotating seat (14) to rotate is provided at the bottom of the transfer platform (5). The gripping assembly includes two symmetrical claw bars (19) that are elastically rotatably disposed at the end of the rocker arm (6) away from the rotating seat (14). A sliding rod (20) is slidably connected to the rocker arm (6). The sliding rod (20) is movably connected to the outside of the claw bar (19) through a connector (21). A limiting component is provided on the rocker arm (6) to limit the sliding rod (20) to a position close to the rotating seat (14) during its active stroke. The limiting component is released when the gripping assembly is at the corresponding feeding position. One end of the sliding rod (20) is slidably disposed through the rocker arm (6). A hook assembly matching the sliding rod (20) is provided on the transfer table (5). The hook assembly hooks with the sliding rod (20) when the gripping assembly is at the corresponding cultivation hole (2). The hook assembly includes a telescopic drive unit (30) installed on the transfer platform (5). The output end of the telescopic drive unit (30) is provided with a hook body (31). The side wall of the telescopic drive unit (30) is provided with a pressure switch (32). When the gripping component is in the corresponding cultivation hole (2), the pressure switch (32) is pressed by the rocker arm (6) to trigger the telescopic drive unit (30) to retract. Otherwise, the telescopic drive unit (30) automatically extends.

2. The nursery transplanting mechanism for hydroponics as described in claim 1, characterized in that, The conveying assembly includes at least two rollers (7) rotatably mounted on a transfer vehicle (4), a conveyor belt (8) is sleeved on the rollers (7), a baffle (9) is provided on the upper edge of the conveyor belt (8), and a diverter plate (10) is provided at the middle position of the end of the conveying assembly. The gap between the baffle (9) and one side of the diverter plate (10) is only enough for a single seedling (3) to pass through.

3. The nursery transplanting mechanism for hydroponics as described in claim 1, characterized in that, The transfer vehicle (4) is rotatably equipped with a screw (11), and the transfer platform (5) is connected through an internal thread sleeve (12) that is threadedly connected to the screw (11). The top of the transfer vehicle (4) is equipped with a rotary drive unit (13) that drives the screw (11) to rotate.

4. The nursery transplanting mechanism for hydroponics as described in claim 1, characterized in that, The bottom of the transfer platform (5) is provided with a drive chamber (15). The drive assembly includes a drive shaft (16) rotatably disposed inside the drive chamber (15). A first bevel gear (17) is coaxially connected to the drive shaft (16). The rotating shaft of the rotating seat (14) rotates through the transfer platform (5) and extends into the drive chamber (15). A second bevel gear (18) that meshes with the first bevel gear (17) is also coaxially connected to it.

5. The nursery transplanting mechanism for hydroponics as described in claim 1, characterized in that, The rocker arm (6) is rotatably mounted on the rotating seat (14) and is linked to the rotation of the rotating seat (14).

6. The nursery transplanting mechanism for hydroponics as described in claim 5, characterized in that, A worm gear (22) is rotatably installed inside 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 gear (22) is unidirectionally connected to a positioning shaft (24). The lower end of the positioning shaft (24) rotatably passes through the rotating seat (14) and is coaxially connected to a positioning gear (25). An arc-shaped rack (26) matching the positioning gear (25) is provided on the transfer table (5).

7. The nursery transplanting mechanism for hydroponics as described in claim 1, characterized in that, The limiting assembly includes a pressing rod (27) elastically movable on the side wall of the rocker arm (6), a limiting block (28) that can extend into the moving stroke of the sliding rod (20) on the pressing rod (27), and an abutment (29) that matches the pressing rod (27) fixedly provided on the inner side of the transfer table (5) relative to the rocker arm (6).

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