CN112544426A

CN112544426A - Lettuce soilless culture planting device

Info

Publication number: CN112544426A
Application number: CN202011402276.4A
Authority: CN
Inventors: 张宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-03-26

Abstract

The invention relates to the technical field of soilless culture, in particular to a lettuce soilless culture planting device which comprises a culture bed, a transmission assembly, a mechanical arm and a mechanical claw cooperative assembly. According to the lettuce seedling cultivation device, the nutrition pot is placed in the clamping groove of the rotating plate, the driving assembly enables the horizontal moving frame in the transmission assembly to push the first air cylinder and the mechanical arm to move, the first mechanical clamp and the second mechanical clamp on the mechanical arm clamp and fix the pot body of the nutrition pot, and the second mechanical claw breaks the paper wall part of the nutrition pot, so that the lettuce seedling cultivation external environment is fully opened, meanwhile, the lettuce root system growth is prevented from being damaged, and the nutrient solution irrigation amount is reduced; the bottom end of the second mechanical claw on the mechanical arm is screwed and connected with a multipurpose mechanical finger and a mold, so that pit opening and soil leveling work of fine sand on the cultivation bed can be automatically completed, and the labor intensity of workers and the fixation cost of soilless culture are further reduced.

Description

Lettuce soilless culture planting device

Technical Field

The invention relates to the technical field of soilless culture, in particular to a lettuce soilless culture planting device.

Background

The lettuce is asparagus lettuce, has rich nutrition and cool property, can relieve stomach heat, and is listed as three vegetables for greenhouse soilless culture together with tomatoes and cucumbers. In recent years, a certain cultivation area is also provided in suburbs of northern cities in China. The lettuce (semi-nodulated lettuce) has the advantages of fast growth, fast stubble replacement and convenient management, so the method is suitable for annual cultivation, and the cultivation methods comprise gravel cultivation, sand cultivation, spray cultivation and the like.

In the lettuce sand culture process, lettuce seedlings in a paper nutrition pot are required to be transplanted to a culture bed, the growth environment of the lettuce can be influenced due to the fact that the bottom and the side faces of the paper nutrition pot body of the nutrition pot are sealed, the lettuce seedlings need to be broken before transplanting, a method for manually breaking the nutrition pot by using a tool is usually adopted in actual work, the nutrition pot body of the nutrition pot can be completely removed, the sandy soil growth environment of the lettuce root system is damaged, and nutrient solution is required to be mixed and irrigated after transplanting is completed; meanwhile, the work of digging, transplanting and leveling soil needs a large amount of manpower, and the fixed cost of the soilless culture of the lettuce is increased.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a lettuce soilless culture planting device, nutrition bowls are placed in clamping grooves of a rotating plate, a driving assembly enables a horizontal moving frame in a transmission assembly to push a first air cylinder and a mechanical arm to move, a first mechanical clamp and a second mechanical clamp on the mechanical arm clamp and fix a bowl body of the nutrition bowls, and a second mechanical claw breaks a paper wall part of the nutrition bowls, so that the growth of lettuce root systems is prevented from being damaged while the environment outside the culture of lettuce seedlings is fully opened, and the use amount of nutrient solution irrigation is reduced; the bottom end of the second mechanical claw on the mechanical arm is screwed and connected with a multi-purpose mechanical finger, so that pit opening and soil leveling work of fine sand on the cultivation bed can be automatically completed, and the labor intensity of workers and the fixation cost of soilless culture are further reduced.

The purpose of the invention can be realized by the following technical scheme:

a lettuce soilless culture planting device comprises a culture bed, a transmission assembly, a mechanical arm and a mechanical claw cooperative assembly, wherein the culture bed is a fine sand bed for lettuce planting, four corners of the culture bed are fixedly connected with support columns, and the top ends of the four support columns are respectively and fixedly connected with four corners of the bottom surface of a top plate; the top of the cultivation bed is provided with a transmission assembly below the top plate, the top of the cultivation bed is provided with a plurality of nutrition bowls, the transmission assembly comprises a first air cylinder, the top of the first air cylinder is fixedly connected with a horizontal moving frame, the output end of the first air cylinder is fixedly connected with a first connecting plate, the bottom surface of the top plate is fixedly connected with a driving assembly used for driving the horizontal moving frame to move, and the first air cylinder and the first connecting plate are in staggered connection, so that the mechanical arms in two working states can be distinguished and distinguished conveniently when the transmission assembly is operated;

the bottom of the transmission assembly is provided with two mechanical arms, the top surfaces of the two mechanical arms are respectively and fixedly connected with two ends of the bottom surface of the first connecting plate, the outer side of the top of each mechanical arm is fixedly sleeved with a first mechanical claw, the outer side of the bottom of each mechanical arm is fixedly sleeved with a second mechanical claw, each first mechanical claw comprises a first sleeving ring fixedly sleeved on the outer side of the top of the adjacent mechanical arm, three first mechanical clamps are uniformly arranged at the bottom of each first sleeving ring, the bottom end of each first mechanical clamp is connected with a first mechanical finger through screwing, each second mechanical claw comprises a second sleeving ring fixedly sleeved on the outer side of the bottom of the adjacent mechanical arm, three second mechanical clamps are uniformly arranged at the bottom of each second sleeving ring, the bottom end of each second mechanical clamp is connected with a second mechanical finger through screwing, and the first mechanical finger and the second mechanical finger are disassembled and assembled through screwing, the first mechanical clamp and the second mechanical clamp can replace multipurpose mechanical fingers and molds, and can automatically complete pit opening and soil leveling of fine sand on the cultivation bed;

two be provided with gripper cooperative assembly between the arm, gripper cooperative assembly includes the second connecting plate, the both ends difference fixed connection of second connecting plate is in the corresponding position of two adjacent one sides of arm, the top surface central point of second connecting plate puts fixedly connected with second cylinder, second cylinder output end fixedly connected with goes up the ejector pin, the both ends difference fixed connection of going up the ejector pin is in two adjacent one sides of first set of ring, the bottom surface central point of second connecting plate puts fixedly connected with third cylinder, ejector pin under the third cylinder output fixedly connected with, the both ends difference fixed connection of ejector pin is in two adjacent one sides of second set of ring down, and two first set of rings that the ejector pin was connected are promoted to the second cylinder reciprocate, and two second set of rings that the ejector pin is connected under the promotion of third cylinder promote reciprocate, accomplish the fixing of first gripper to the three strong point of nutrition alms bowl and the paper wall of second gripper to the nutrition alms bowl respectively Part of the lettuce seedlings is broken, and the purpose of fully opening the environment in the culture of the lettuce seedlings is realized.

Further, the method comprises the following steps: fine sand is laid on the bed surface of the cultivation bed, a plurality of matrix pits are uniformly formed in the sand bed, the top of each matrix pit is located between four support columns and is fixedly connected with two spray pipes, a water filling regulator is fixedly connected to the center of one of the two spray pipes, each matrix pit is used for placing and fixing a nutrition pot after the paper wall is removed, and water and fertilizer in the water filling regulator are proportioned in proportion and irrigated and fertilized through the spray pipes.

Further, the method comprises the following steps: one side of cultivation bed is connected with the rotor plate through the hinge rotation, one side symmetry activity joint that the rotor plate top surface deviates from the cultivation bed has two halter wires, a plurality of draw-in grooves that are used for carrying on spacingly to the nutrition alms bowl have been seted up to the rotor plate top surface, and fine sand and lettuce seedling are filled to the inside of the nutrition alms bowl of paper, transplant the nutrition alms bowl from ground to the cultivation bed before and fix in the draw-in groove to the nutrition alms bowl is taked away to drive assembly removes mechanical arm.

Further, the method comprises the following steps: the bed surface of cultivation bed is close to rotor plate position fixedly connected with water tank, the central point of bottom surface puts the department and rotates through the axis of rotation and is connected with the turbine in the water tank, and the lateral wall bottom of water tank has seted up the apopore, and rivers in the turbine drive water tank rotate, and first gripper and second gripper are put into the water tank after accomplishing the planting of lettuce seedling in the nutrition alms bowl and wash the fine sand, and it skids when avoiding next centre gripping nutrition alms bowl.

Further, the method comprises the following steps: the row spacing between two adjacent nutrition bowls of the cultivation bed is 40cm, the height of each nutrition bowl is 8cm, the nutrition bowls can be fixed in the matrix pit after the paper walls are broken, the planting density of lettuce growth corresponds to the spray pipe holes of the spray pipes, and the lettuce growth is facilitated.

Further, the method comprises the following steps: the first mechanical clamp comprises two first connecting rods, a second connecting rod, a third connecting rod and a fourth connecting rod, the top ends of the two first connecting rods are fixedly connected to the bottom of the outer side wall of a first sleeve ring, the bottom ends of the two first connecting rods are rotatably connected with the second connecting rod, the bottom ends of the two second connecting rods are rotatably connected with the middle part of the third connecting rod through a pin shaft, the top end of the third connecting rod is rotatably connected with one end of the fourth connecting rod, the other end of the fourth connecting rod is fixedly connected to the outer side wall of the mechanical arm and corresponds to the bottom of the first sleeve ring, the bottom end of the inner side wall of the third connecting rod is rotatably connected with a first mechanical finger, the first sleeve ring and the second sleeve ring respectively push the connected first mechanical clamp and the second mechanical clamp to move up and down, and the bottom ends of the first mechanical fingers at the bottoms of the three first mechanical clamps are tightly, the bottom ends of the second mechanical fingers at the bottoms of the three second mechanical clamps are tightly attached to the inner wall of the nutrition pot body, so that the situation that the planting position deviates from the matrix pit due to shaking is avoided when the nutrition pot is moved.

Further, the method comprises the following steps: the outer profiles of the second mechanical clamp and the first mechanical clamp are the same, the included angle of the horizontal projection between the adjacent second mechanical clamp and the first mechanical clamp is 60 degrees, and the collision between the first mechanical finger and the second mechanical finger is avoided when the inner sides of the second mechanical clamp and the first mechanical clamp are contracted simultaneously.

Further, the method comprises the following steps: the length of the first mechanical finger and the length of the second mechanical finger are both larger than 8cm, so that the feeding block is stably clamped, and meanwhile, sand and soil are prevented from entering the mechanical arm.

Further, the method comprises the following steps: the driving component comprises a first motor and a second motor, the bottom surface of the top plate is fixedly connected with a supporting frame along the width direction, and both ends of one side of the supporting frame are respectively and rotatably connected with a first threaded rod and a guide round rod through bearings, the bottom surface of the top plate is fixedly connected with a second motor, the output end of the second motor is in transmission connection with one end of the first threaded rod, a guide rod is arranged below the top plate, one end of the guide rod is provided with a threaded hole which is screwed with the first threaded rod, the other end of the guide rod is sleeved on the outer cylindrical surface of the guide round rod in a sliding way, two fixing blocks are symmetrically and fixedly connected with two ends of the bottom of the guide rod, one end of the bottom of the guide rod is fixedly connected with a first motor, a second threaded rod is rotatably connected between the two fixing blocks, the output end of the first motor is in transmission connection with one end of the second threaded rod, and the horizontal moving frame is in screwing connection with the second threaded rod.

The invention has the beneficial effects that:

1. through placing the nutritive cube in the draw-in groove of rotor plate, make the horizontal migration frame in the drive assembly promote first cylinder and arm through drive assembly and remove, first mechanical gripper and the second mechanical gripper centre gripping and the alms bowl body of fixed nutritive cube on the arm, the piston rod of first cylinder moves down, the nutritive cube is put into the matrix hole, two first grafting rings that the ejector pin is connected are promoted to the second cylinder in the gripper cooperation subassembly reciprocate, two second grafting rings that the ejector pin is connected reciprocate under the promotion of third cylinder, accomplish fixed and the second gripper of first gripper to the three strong point of nutritive cube and break the paper wall part of nutritive cube respectively, when realizing that the cultivation external environment of lettuce seedling is fully open, avoid destroying the growth of lettuce root system, the quantity that the nutrient solution was irrigated has been reduced.

2. The bottom end of the second mechanical claw on the mechanical arm is screwed and connected with a multi-purpose mechanical finger, so that pit opening and soil leveling work of fine sand on the cultivation bed can be automatically completed, and the labor intensity of workers and the fixation cost of soilless culture are reduced.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the construction of the rotating plate and water tank of the present invention;

FIG. 3 is a schematic view of the drive assembly of the present invention;

FIG. 4 is a schematic view of a robotic arm according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a partial enlarged view of FIG. 4 at B;

FIG. 7 is a top view of a first gripper and a second gripper of the present invention;

FIG. 8 is a schematic view showing the structure of a cultivation bed in the present invention;

fig. 9 is a view looking down at C in fig. 8.

In the figure: 100. a cultivation bed; 101. a nutrition pot; 110. a support pillar; 111. a top plate; 120. a matrix pit; 130. a nozzle; 131. a water filling regulator; 140. a rotating plate; 141. hooking a rope; 142. a card slot; 150. a water tank; 151. a turbine; 152. a water outlet hole; 200. a transmission assembly; 210. a first cylinder; 220. a horizontal moving frame; 230. a first connecting plate; 300. a mechanical arm; 310. a first gripper; 311. a first ferrule; 312. a first mechanical clamp; 3121. a first connecting rod; 3122. a second connecting rod; 3123. a third connecting rod; 3124. a fourth connecting rod; 313. a first mechanical finger; 320. a second gripper; 321. a second nesting ring; 322. a second mechanical clamp; 323. a second mechanical finger; 400. a gripper cooperating assembly; 410. a second connecting plate; 420. a second cylinder; 421. an ejector rod is arranged; 430. a third cylinder; 431. a lower ejector rod; 500. a drive assembly; 510. a first threaded rod; 520. a guide round bar; 530. a guide bar; 540. a first motor; 550. a second threaded rod; 560. a support frame; 570. a second motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a lettuce soilless culture planting device comprises a culture bed 100, a transmission assembly 200, a mechanical arm 300 and a mechanical claw cooperative assembly 400, wherein the culture bed 100 is a fine sand bed for lettuce planting, four corners of the culture bed 100 are fixedly connected with support columns 110, and top ends of the four support columns 110 are respectively fixedly connected with four corners of the bottom surface of a top plate 111; the top of the cultivation bed 100 is provided with a transmission assembly 200 below the top plate 111, the top of the cultivation bed 100 is provided with a plurality of nutrition bowls 101, the transmission assembly 200 comprises a first air cylinder 210, the top of the first air cylinder 210 is fixedly connected with a horizontal moving frame 220, the output end of the first air cylinder 210 is fixedly connected with a first connecting plate 230, the bottom surface of the top plate 111 is fixedly connected with a driving assembly 500 for driving the horizontal moving frame 220 to move, and the first air cylinder 210 and the first connecting plate 230 are in a staggered connection relationship, so that the mechanical arms 300 in two working states can be distinguished and distinguished conveniently when the transmission assembly 200 is operated;

the bottom of the transmission assembly 200 is provided with two mechanical arms 300, the top surfaces of the two mechanical arms 300 are respectively and fixedly connected to two ends of the bottom surface of the first connecting plate 230, the outer side of the top of each mechanical arm 300 is fixedly sleeved with a first mechanical claw 310, the outer side of the bottom of each mechanical arm is fixedly sleeved with a second mechanical claw 320, each first mechanical claw 310 comprises a first sleeved ring 311 sleeved and fixed on the outer side of the top of the adjacent mechanical arm 300, the bottom of each first sleeved ring 311 is uniformly provided with three first mechanical clamps 312, the bottom end of each first mechanical clamp 312 is connected with a first mechanical finger 313 through screwing, each second mechanical claw 320 comprises a second sleeved ring 321 sleeved and fixed on the outer side of the bottom of the adjacent mechanical arm 300, the bottom of each second sleeved ring 320 is uniformly provided with three second mechanical clamps 322, the bottom end of each second mechanical clamp 322 is connected with a second mechanical finger 323 through screwing, the first mechanical fingers 313 and the second mechanical fingers 323 are disassembled and assembled, the first mechanical clamp 312 and the second mechanical clamp 322 can replace multi-purpose mechanical fingers to automatically complete the pit opening and soil leveling of fine sand on the cultivation bed 100;

a gripper cooperation assembly 400 is arranged between the two mechanical arms 300, the gripper cooperation assembly 400 includes a second connecting plate 410, two ends of the second connecting plate 410 are respectively and fixedly connected to corresponding positions of adjacent sides of the two mechanical arms 300, a second cylinder 420 is fixedly connected to a top center position of the second connecting plate 410, an upper push rod 421 is fixedly connected to an output end of the second cylinder 420, two ends of the upper push rod 421 are respectively and fixedly connected to adjacent sides of the two first nesting rings 311, a third cylinder 430 is fixedly connected to a bottom center position of the second connecting plate 410, an output end of the third cylinder 430 is fixedly connected to a lower push rod 431, two ends of the lower push rod 431 are respectively and fixedly connected to adjacent sides of the two second nesting rings 321, the second cylinder 420 pushes the two first nesting rings 311 connected with the upper push rod 421 to move up and down, the third cylinder 430 pushes the two second nesting rings 321 connected with the lower, the fixation of the first mechanical claw 310 to the three supporting points of the nutrition pot 101 and the breaking of the paper wall part of the nutrition pot 101 by the second mechanical claw 320 are respectively completed, and the purpose of fully opening the environment outside the culture of the lettuce seedlings is realized.

Fine sand is laid on the bed surface of the cultivation bed 100, a plurality of matrix pits 120 are uniformly formed in the sand bed, two spray pipes 130 are fixedly connected to the tops of the matrix pits 120 and located between the four support columns 110, a water filling regulator 131 is fixedly connected to the center of one of the two spray pipes 130, the matrix pits 120 are used for placing and fixing the nutrition bowls 101 with the paper walls removed, and water and fertilizer in the water filling regulator 131 are proportioned according to a proportion and irrigated and fertilized through the spray pipes 130.

A rotating plate 140 is rotatably connected to one side edge of the cultivation bed 100 through a hinge, two hook cables 141 are symmetrically and movably clamped to one side, away from the cultivation bed 100, of the top surface of the rotating plate 140, a plurality of clamping grooves 142 used for limiting the nutrition bowls 101 are formed in the top surface of the rotating plate 140, fine sand and lettuce seedlings are filled in the paper nutrition bowls 101, the nutrition bowls 101 are transplanted to the cultivation bed 100 from the ground and are fixed in the clamping grooves 142, and therefore the transmission assembly 200 can move the mechanical arm 300 to take away the nutrition bowls 101; the position fixedly connected with water tank 150 that the bed surface of cultivation bed 100 is close to rotor plate 140, the central point department of bottom surface rotates through the axis of rotation and is connected with turbine 151 in the water tank 150, and apopore 152 has been seted up to the lateral wall bottom of water tank 150, turbine 151 drives the rivers rotation in the water tank 150, first gripper 310 and second gripper 320 wash the fine sand in putting into water tank 150 after accomplishing the planting of lettuce seedling in nutrition alms bowl 101, slip when avoiding following centre gripping nutrition alms bowl 101.

The row spacing between two adjacent nutrition bowls 101 of the cultivation bed 100 is 40cm, the height of each nutrition bowl 101 is 8cm, the nutrition bowls 101 can be fixed in the substrate pits 120 after the paper walls are broken, the planting density of the lettuce growth corresponds to the nozzle holes of the nozzles 130, and the lettuce growth is facilitated.

The first mechanical gripper 312 comprises two first connecting rods 3121, one second connecting rod 3122, one third connecting rod 3123 and one fourth connecting rod 3124, the top ends of the two first connecting rods 3121 are fixedly connected to the bottom of the outer side wall of the first gripper ring 311, and the bottom ends of the two first connecting rods 3121 are both rotatably connected to the second connecting rod 3122, the bottom ends of the two second connecting rods 3122 are rotatably connected to the middle of the third connecting rod 3123 through a pin, the top end of the third connecting rod 3123 is rotatably connected to one end of the fourth connecting rod 3124, the other end of the fourth connecting rod 3124 is fixedly connected to the outer side wall of the robot arm 300 corresponding to the bottom of the first gripper ring 311, the bottom end of the inner side wall of the third connecting rod 3123 is rotatably connected to a first mechanical finger 313, the first gripper ring 311 and the second gripper ring 321 respectively push the connected first mechanical gripper 312 and second gripper 322 to move up and down, the bottom ends of the first mechanical fingers 313 at the bottom of the three first mechanical grippers 312, the bottom ends of the second mechanical fingers 323 at the bottoms of the three second mechanical clamps 322 are tightly attached to the inner wall of the nutrition pot 101, so that the situation that the planting position deviates from the matrix pit 120 due to shaking is avoided when the nutrition pot 101 is moved.

The external profiles of the second mechanical gripper 322 and the first mechanical gripper 312 are the same, the included angle of the horizontal projection between the adjacent second mechanical gripper 322 and the first mechanical gripper 312 is 60 degrees, and the collision between the first mechanical finger 313 and the second mechanical finger 323 is avoided when the second mechanical gripper 322 and the first mechanical gripper 312 are simultaneously retracted inside; the lengths of the first mechanical finger 313 and the second mechanical finger 323 are both larger than 8cm, so that the feeding block 101 is stably clamped, and meanwhile, sand and soil are prevented from entering the mechanical arm 300.

The driving assembly 500 comprises a first motor 540 and a second motor 570, the bottom surface of the top plate 111 is fixedly connected with a supporting frame 560 along the width direction thereof, two ends of one side of the supporting frame 560 are respectively and rotatably connected with a first threaded rod 510 and a guiding round rod 520 through bearings, the bottom surface of the top plate 111 is fixedly connected with the second motor 570, the output end of the second motor 570 is in transmission connection with one end of the first threaded rod 510, a guiding rod 530 is arranged below the top plate 111, one end of the guiding rod 530 is provided with a threaded hole in screwing connection with the first threaded rod 510, the other end of the guiding rod 530 is slidably sleeved on the outer cylindrical surface of the guiding round rod 520, two ends of the bottom of the guiding rod 530 are symmetrically and fixedly connected with two fixed blocks, one end of the bottom of the guiding rod 530 is fixedly connected with the first motor 540, the second threaded rod 550 is rotatably connected between the two fixed blocks, the output end of the first, the horizontal moving frame 220 is connected with the second threaded rod 550 in a screwing manner, and the first threaded rod 510 and the second threaded rod 550 are driven to rotate by the first motor 540 and the second motor 570, so that the positions of the guide rod 530 and the horizontal moving frame 220 are adjusted, and the position of the mechanical arm 300 is conveniently adjusted.

The fine sand on the bed surface of the cultivation bed 100 and the fine sand in the nutrition pot 101 are humidified before transplanting.

The working principle is as follows: when the nutrition pot 101 for cultivating lettuce seedlings is used, the nutrition pot 101 for cultivating lettuce seedlings is placed in the clamping groove 142 of the rotating plate 140, the first air cylinder 210 is externally connected with an air supply box, the first motor 540 and the second motor 570 drive the first threaded rod 510 and the second threaded rod 550 to rotate, so that the positions of the guide rod 530 and the horizontal moving frame 220 are adjusted, the mechanical arm 300 is adjusted to be right above the nutrition pot 101 to be processed, the bottom ends of the first mechanical fingers 313 at the bottoms of the three first mechanical clamps 312 on the mechanical arm 300 are tightly attached to the pot body outer wall of the nutrition pot 101 by adjusting the effective length of the first air cylinder 210, the bottom ends of the second mechanical fingers 323 at the bottoms of the three second mechanical clamps 320 are tightly attached to the pot body inner wall of the nutrition pot 101, and the situation that the planting position deviates from the matrix pit 120 due to shaking is avoided when the nutrition;

the piston rod of the first cylinder 210 in the transmission assembly 200 moves downwards, the nutrition pot 101 is stably placed in the substrate pit 120, the second cylinder 420 in the gripper cooperation assembly 400 pushes the two first nesting rings 311 connected with the upper push rod 421 to move up and down, the third cylinder 430 pushes the two second nesting rings 321 connected with the lower push rod 431 to move up and down, the fixation of the first gripper 310 on three supporting points of the nutrition pot 101 and the breakage of the second gripper 320 on the paper wall part of the nutrition pot 101 are respectively completed, and the purpose of fully opening the external culture environment of the lettuce seedlings is realized;

the included angle of the horizontal projection between the adjacent second mechanical gripper 322 and the first mechanical gripper 312 is 60 degrees, so that the first mechanical finger 313 and the second mechanical finger 323 are prevented from colliding when the inner sides of the second mechanical gripper 322 and the first mechanical gripper 312 contract, because the two mechanical arms 300 are close to each other, the horizontal rotation angle between the two groups of first mechanical gripper 312 is 60 degrees, the horizontal rotation angle between the two groups of second mechanical gripper 322 is 60 degrees, so that the first mechanical gripper 310 is prevented from colliding and the second mechanical gripper 320 is prevented from colliding between the two mechanical arms 300;

after the mechanical arm 300 finishes planting lettuce seedlings in the nutrition bowl 101, the transmission assembly 200 moves the first mechanical clamp 312 and the second mechanical clamp 322 into the water tank 150, the turbine 151 in the water tank 150 rotates to clean fine sand, slipping when the nutrition bowl 101 is clamped by the first mechanical clamp 312 is avoided, and waste water containing the fine sand is discharged from the water tank 150 through the water outlet 152 and is discharged into the cultivation bed 100 for recycling.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims

1. A lettuce soilless culture planting device comprises a culture bed (100), a transmission assembly (200), a mechanical arm (300) and a mechanical claw cooperation assembly (400), and is characterized in that the culture bed (100) is a fine sand bed for lettuce planting, four corners of the culture bed (100) are fixedly connected with supporting columns (110), and the top ends of the four supporting columns (110) are fixedly connected with four corners of the bottom surface of a top plate (111) respectively; a transmission assembly (200) is arranged at the top of the cultivation bed (100) and below the top plate (111), a plurality of nutrition bowls (101) are arranged at the top of the cultivation bed (100), the transmission assembly (200) comprises a first air cylinder (210), a horizontal moving frame (220) is fixedly connected to the top of the first air cylinder (210), a first connecting plate (230) is fixedly connected to the output end of the first air cylinder (210), and a driving assembly (500) for driving the horizontal moving frame (220) to move is fixedly connected to the bottom surface of the top plate (111);

the bottom of the transmission component (200) is provided with two mechanical arms (300), the top surfaces of the two mechanical arms (300) are respectively and fixedly connected to two ends of the bottom surface of the first connecting plate (230), the outer sides of the tops of the mechanical arms (300) are fixedly sleeved with first mechanical claws (310), the outer sides of the bottoms of the mechanical arms are fixedly sleeved with second mechanical claws (320), the first mechanical claws (310) comprise first sleeved rings (311) fixedly sleeved on the outer sides of the tops of adjacent mechanical arms (300), three first mechanical clamps (312) are uniformly arranged at the bottoms of the first sleeved rings (311), the bottom ends of the first mechanical clamps (312) are connected with first mechanical fingers (313) in a screwing manner through screws, each second mechanical claw (320) comprises second sleeved rings (321) fixedly sleeved on the outer sides of the bottoms of the adjacent mechanical arms (300), and three second mechanical clamps (322) are uniformly arranged at the bottoms of the second sleeved rings (320), the bottom end of the second mechanical clamp (322) is connected with a second mechanical finger (323) through screwing;

a mechanical claw cooperation assembly (400) is arranged between the two mechanical arms (300), the mechanical claw cooperation assembly (400) comprises a second connecting plate (410), two ends of the second connecting plate (410) are respectively and fixedly connected with corresponding positions of the adjacent sides of the two mechanical arms (300), the center of the top surface of the second connecting plate (410) is fixedly connected with a second air cylinder (420), the output end of the second cylinder (420) is fixedly connected with an upper ejector rod (421), two ends of the upper ejector rod (421) are respectively and fixedly connected with one adjacent side of the two first sleeving rings (311), the center of the bottom surface of the second connecting plate (410) is fixedly connected with a third cylinder (430), and the output end of the third cylinder (430) is fixedly connected with a lower ejector rod (431), and two ends of the lower ejector rod (431) are respectively and fixedly connected to one side adjacent to the two second sleeving rings (321).

2. A lettuce soilless culture planting device as claimed in claim 1, wherein the cultivation bed (100) has a bed surface laid with fine sand and the sand bed is uniformly provided with a plurality of substrate pits (120), the top of each substrate pit (120) is located between four support columns (110) and is fixedly connected with two spray pipes (130), and one of the two spray pipes (130) is fixedly connected with a watering regulator (131) at the center of the top.

3. A lettuce soilless culture and cultivation device as claimed in claim 1, wherein a side of the cultivation bed (100) is rotatably connected with a rotating plate (140) through a hinge, two hook cables (141) are symmetrically and movably clamped on one side of the top surface of the rotating plate (140) which is far away from the cultivation bed (100), and a plurality of clamping grooves (142) used for limiting the nutrition bowls (101) are formed in the top surface of the rotating plate (140).

4. A lettuce soilless culture planting device as claimed in claim 3, wherein the cultivation bed (100) has a water tank (150) fixedly connected to the bed surface near the rotating plate (140), a turbine (151) is rotatably connected to the center of the inner bottom surface of the water tank (150) through a rotating shaft, and a water outlet (152) is opened at the bottom of the side wall of the water tank (150).

5. A lettuce soilless culture planting device according to claim 1, characterized in that the row spacing between two adjacent nutrition pots (101) of the said cultivation bed (100) is 40cm, and the height of the nutrition pot (101) is 8 cm.

6. A lettuce soilless culture planting device according to claim 1, wherein the first mechanical clamp (312) comprises two first connecting rods (3121), a second connecting rod (3122), a third connecting rod (3123) and a fourth connecting rod (3124), the top ends of the two first connecting rods (3121) are fixedly connected to the bottom of the outer side wall of the first thimble (311), the bottom ends of the two first connecting rods (3121) are rotatably connected with the second connecting rod (3122), the bottom ends of the two second connecting rods (3122) are rotatably connected with the middle part of the third connecting rod (3123) through a pin shaft, the top end of the third connecting rod (3123) is rotatably connected with one end of the fourth connecting rod (3124), the other end of the fourth connecting rod (3124) is fixedly connected with the outer side wall of the mechanical arm (300) corresponding to the bottom of the first thimble (311), the bottom end of the inner side wall of the third connecting rod (3123) is connected with a first mechanical finger (313) in a screwing way.

7. A lettuce soilless culture growing device as claimed in claim 1, characterized in that the external profile of the second mechanical gripper (322) and the first mechanical gripper (312) is the same and the angle of the horizontal projection between adjacent second mechanical gripper (322) and first mechanical gripper (312) is 60 °.

8. A lettuce soilless culture growing device according to claim 1, characterized in that said first mechanical finger (313) and said second mechanical finger (323) are each longer than 8 cm.

9. A lettuce soilless culture planting device as claimed in claim 1, wherein the driving assembly (500) comprises a first motor (540) and a second motor (570), the bottom surface of the top plate (111) is fixedly connected with a supporting frame (560) along the width direction thereof, both ends of one side of the supporting frame (560) are respectively and rotatably connected with a first threaded rod (510) and a guiding round rod (520) through bearings, the bottom surface of the top plate (111) is fixedly connected with a second motor (570), the output end of the second motor (570) is in transmission connection with one end of the first threaded rod (510), a guiding rod (530) is arranged below the top plate (111), one end of the guiding rod (530) is provided with a threaded hole which is rotatably connected with the first threaded rod (510), the other end of the guiding rod (530) is sleeved on the outer cylindrical surface of the guiding round rod (520), two fixed blocks of the both ends symmetry fixedly connected with of guide bar (530) bottom, the first motor of one end fixedly connected with (540) of guide bar (530) bottom, two rotate between the fixed block and be connected with second threaded rod (550), the output and the transmission of second threaded rod (550) one end of first motor (540) are connected, horizontal migration frame (220) close with second threaded rod (550) soon and are connected.