CN214507926U

CN214507926U - Seedling grabbing device

Info

Publication number: CN214507926U
Application number: CN202022782144.0U
Authority: CN
Inventors: 朱利宾
Original assignee: Taizhou Lvwochuan Automation Equipment Manufacturing Co ltd
Current assignee: Taizhou Lvwochuan Automation Equipment Manufacturing Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-10-29
Anticipated expiration: 2030-11-26

Abstract

The invention provides a seedling grabbing device which comprises a main connecting rod positioned in the middle, wherein an installation seat is arranged on the upper portion of the main connecting rod, the lower end of the main connecting rod is connected with a guide seat, a radially-arranged strip-shaped guide hole penetrating through the upper surface and the lower surface of the guide seat is formed in the guide seat, an air bag is arranged on the outer surface of the main connecting rod and positioned below the installation seat, at least three hinge seats are arranged on the installation seat in an equiangular mode along the circumferential direction, a movable arm is hinged to each hinge seat, the movable arm penetrates through the strip-shaped guide hole and then is positioned below the guide seat, a spring installation groove is formed in the outer side of each movable arm, a tightening spring is sleeved on the periphery of the spring installation groove of each movable arm, the tightening springs keep all the movable arms in a tightening state, a piston telescopic rod and a seedling grabbing rod which are connected together and can slide along the axial direction are arranged in each movable arm, and an air inlet and an air outlet are respectively formed in the corresponding piston on each movable arm. The invention has high seedling grabbing efficiency and high speed, and seedlings are not easy to be damaged.

Description

Seedling grabbing device

Technical Field

The invention relates to agricultural equipment, in particular to a seedling gripping device.

Background

Hydroponic vegetables are different from vegetables cultivated in the traditional soil cultivation mode in that most root systems grow in a nutrient solution layer by layer and only the nutrient solution provides water, nutrients and oxygen for the hydroponic vegetables. The hydroponic vegetable nutrient solution has scientific formula, reasonable proportion of various nutrient elements, comprehensive nutrition of the produced vegetable and rich vitamins and mineral substances necessary for human bodies. At present, the water planting vegetable planting mode is continuously upgraded and updated, the mechanization degree is gradually improved, the seedlings in the seedling tray are transferred into the seedling cups on the seedling tray in one step in the vegetable planting process, and the seedling cups are placed in a culture solution for planting after being taken out subsequently.

At present, seedlings are grabbed manually, the seedlings in a seedling tray are grabbed together with matrix soil by fingers and then placed in seedling cups on the seedling tray, the working strength is high for workers, the working efficiency is low, and the fingers are damaged by long-time repeated operation, so that a seedling grabbing device is needed to be invented.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a seedling gripping device, which can rapidly grip seedlings in a seedling tray, is not easy to damage the seedlings, and has high automation degree and high work efficiency.

The technical scheme of the invention is that the seedling gripping device comprises a main connecting rod positioned in the middle, wherein the upper part of the main connecting rod is provided with an installation seat, the lower end of the main connecting rod is connected with a guide seat, the guide seat is provided with strip-shaped guide holes which penetrate through the upper surface and the lower surface of the guide seat and are arranged along the radial direction, the outer surface of the main connecting rod is provided with an air bag below the installation seat, the installation seat is provided with at least three hinge seats along the circumferential direction at equal angles, each hinge seat is hinged with a movable arm, the movable arms penetrate through the strip-shaped guide holes and are positioned below the guide seat, the outer sides of the movable arms are provided with spring installation grooves, the peripheries of the spring installation grooves of a plurality of movable arms are sleeved with tightening springs, the tightening springs keep all the movable arms in a tightening state, and the insides of the movable arms are provided with telescopic rods and telescopic rods which are connected together along the axial direction and can slide, the movable arm is provided with an air inlet and an air outlet corresponding to the piston telescopic rod respectively; the expansion or contraction of the air bag is controlled by inflating or deflating the air bag to match with the tightening spring to realize the expansion or grasping of all the movable arms, and the extension and retraction of the seedling grasping rod are realized by pushing the piston telescopic rod to slide along the axial direction through the air inlet direction of the air inlet and the air outlet.

Preferably, the rear end of the seedling grabbing rod is connected with the front end of the piston telescopic rod through a connecting slide block, the front end of the seedling grabbing rod is a flat part, and the surface of the flat part faces the axial line position of the main connecting rod.

Preferably, the number of the hinge seats is three or four or five.

Preferably, the spring mounting groove is located above the guide seat, and the tightening springs are wound on the outer side surfaces of the spring mounting grooves at the same height of all the movable arms.

Preferably, the outer surface of the movable arm is provided with a coating block which is in contact with the air bag at the position of the air bag.

The seedling tray can quickly grab the seedlings in the seedling tray, the seedlings are moved into the seedling cups on the seedling tray through the matched equipment, the seedlings are not easily damaged in the grabbing process, the automation degree is high, and the working efficiency is high.

Drawings

FIG. 1 is a schematic structural view of the present invention with the movable arm open;

FIG. 2 is a schematic view of the structure of the seedling-grasping rod of FIG. 1 when it is extended;

FIG. 3 is a schematic view of the movable arm of FIG. 2 in a grasping configuration;

FIG. 4 is a schematic view of the seedling-grasping rod of FIG. 3 in a retracted configuration;

FIG. 5 is a partial schematic view of the present invention;

FIG. 6 is a schematic view of the movable arm according to the present invention;

FIG. 7 is a cross-sectional view taken along A-A of FIG. 6;

FIG. 8 is a schematic view of the structure of the seedling-grasping rod of the present invention;

wherein: 1-a main connecting rod; 2, mounting a base; 3, a guide seat; 4, a strip-shaped guide hole; 5, air bags; 6-a hinged seat; 7-a movable arm; 8, a spring mounting groove; 9-tightening the spring; 10-piston telescopic rod; 11-grabbing seedling poles; 12-an air inlet; 13-air outlet; 14-connecting the sliding block; 15-coating block.

Detailed Description

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

As shown in fig. 1 to 8, the invention provides a seedling gripping device, which comprises a main connecting rod 1 located in the middle, wherein an installation seat 2 is arranged at the upper part of the main connecting rod 1, a guide seat 3 is connected at the lower end of the main connecting rod 1, a radially arranged elongated guide hole 4 penetrating through the upper surface and the lower surface of the guide seat 3 is arranged on the guide seat 3, an air bag 5 is arranged at the position, below the installation seat 2, of the outer surface of the main connecting rod 1, at least three hinge seats 6 are arranged on the installation seat 2 at equal angles along the circumferential direction, each hinge seat 6 is hinged with a movable arm 7, the movable arm 7 passes through the elongated guide hole 4 and then is located below the guide seat 3, a spring installation groove 8 is arranged on the outer side of the movable arm 7, a tightening spring 9 is sleeved at the periphery of the spring installation groove 8 of a plurality of the movable arms 7, and the tightening spring 9 keeps all the movable arms 7 in a tightened state, a piston telescopic rod 10 and a seedling grabbing rod 11 which are connected together and can slide along the axial direction are arranged in the movable arm 7 along the axial direction, and an air inlet 12 and an air outlet 13 are respectively arranged on the movable arm 7 corresponding to the piston telescopic rod 10; the expansion or contraction of the air bag 5 is controlled by inflating or deflating the air bag 5, the expansion or contraction of the air bag 5 is matched with the tightening spring 9 to realize the expansion or grasping of all the movable arms 7, and the extension and retraction of the seedling grasping rod 11 are realized by pushing the piston telescopic rod 10 to slide along the axial direction through the air inlet direction of the air inlet 12 and the air outlet 13.

Preferably, the rear end of the seedling grabbing rod 11 is connected with the front end of the piston telescopic rod 10 through a connecting slide block 14, the front end of the seedling grabbing rod 11 is a flat part, and the surface of the flat part faces the axial position of the main connecting rod 1.

Preferably, the number of the hinge seats 6 is three or four or five.

Preferably, the spring mounting groove 8 is located above the guide seat 3, and the tightening springs 9 are wound on the outer side surfaces of the spring mounting grooves 8 at the same height of all the movable arms 7, so as to ensure the stability of the mounting positions of the tightening springs 9, and thus all the movable arms 7 are in a pre-tightening state.

Preferably, the outer surface of the movable arm 7 is provided with a coating block 15 contacting with the air bag 5 at the position of the air bag 5, and the expansion and the grasping actions of the movable arm are carried out in cooperation with the expansion and the contraction of the air bag 5.

The working process of the invention is as follows, and the structure of the mounting base 2 when four movable arms 7 are hinged is selected for explanation:

firstly, an external moving mechanism moves the seedling tray to a set position above the seedling tray, in the process, the air bag 5 is in an inflated state, the four movable arms 7 are expanded against the tightening force of a tightening spring 9, the movable arms 7 are in an expanded state after sliding outwards along the elongated guide holes 4 on the guide seat 3, the four movable arms 7 are respectively positioned at the outer side positions of four positions above the seedlings, the seedling grabbing rod 11 is positioned inside the movable arms 7, and the seedling tray is in the state shown in fig. 1;

secondly, the air inlet at the air inlet 12 and the air outlet at the air outlet 13 are controlled to push the piston telescopic rod 10 to slide forwards, so as to drive the seedling grabbing rod 11 to extend out of the inner hole at the front end of the movable arm 7, and the flat part at the front end of the seedling grabbing rod 11 is inserted into the matrix soil at the four sides of the seedling, so that the seedling picking device is in the state shown in fig. 2;

thirdly, controlling the air bag 5 to deflate, tightening the four movable arms 7 inwards under the action of the tightening force of the tightening springs 9, enabling the movable arms 7 to be in a tightened state after sliding inwards along the elongated guide holes 4 on the guide seat 3, enabling the flat parts at the front ends of the four seedling grabbing rods 11 to mutually cooperate to grab the seedlings together with the matrix soil, and enabling the seedling grabbing device to be in the state shown in fig. 3;

fourthly, the external moving mechanism moves the seedling tray into the seedling cup on the seedling tray, the air inlet 13 and the air outlet 12 are controlled to allow air to enter and exhaust to push the piston telescopic rod 10 to slide backwards, and further the seedling grabbing rod 11 is driven to retract into the inner hole of the movable arm 7, at the moment, the seedling tray is in the state shown in fig. 4, then the air bag is controlled to inflate, so that the four movable arms 7 are stretched against the tightening force of the tightening spring 9, the movable arms 7 are in the stretching state after sliding outwards along the elongated guide holes 4 on the guide seat 3, and the seedling tray is moved to the set position above the seedling tray again through the external moving mechanism.

Repeat above-mentioned step, can realize snatching the seedling in the seedling dish and remove to the seedling cup on the seedling dish in, whole process work efficiency is high, and is fast, and difficult damage seedling, replaced the artifical work of snatching the seedling.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change or modification made to the above embodiments according to the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a seedling grabbing device which characterized in that: the device comprises a main connecting rod (1) positioned in the middle, wherein a mounting seat (2) is arranged on the upper portion of the main connecting rod (1), the lower end of the main connecting rod (1) is connected with a guide seat (3), a strip-shaped guide hole (4) which is arranged along the radial direction and penetrates through the upper surface and the lower surface of the guide seat (3) is arranged on the guide seat (3), an air bag (5) is arranged on the outer surface of the main connecting rod (1) and is positioned below the mounting seat (2), at least three hinging seats (6) are arranged on the mounting seat (2) at equal angles along the circumferential direction, a movable arm (7) is hinged on each hinging seat (6), the movable arm (7) is positioned below the guide seat (3) after penetrating through the strip-shaped guide hole (4), a spring mounting groove (8) is arranged on the outer side of the movable arm (7), and a tightening spring (9) is sleeved on the periphery of the spring mounting grooves (8) of a plurality of the movable arms (7), the movable arms (7) are connected together in an axial direction and can slide in the axial direction, piston telescopic rods (10) and seedling grabbing rods (11) are arranged in the movable arms (7) along the axial direction, and the movable arms (7) are respectively provided with air inlets (12) and air outlets (13) corresponding to the piston telescopic rods (10); the expansion or contraction of the air bag (5) is controlled by inflating or deflating the air bag (5) to match with the tightening spring (9) to realize the expansion or grasping of all the movable arms (7), and the extension and retraction of the seedling grasping rod (11) are realized by pushing the piston telescopic rod (10) to slide along the axial direction through the air inlet direction of the air inlet (12) and the air outlet (13).

2. A seedling gripping device as claimed in claim 1, characterized in that: grab seedling pole (11) rear end and link together through connecting slider (14) with piston telescopic link (10) front end, grab seedling pole (11) front end and be the platykurtic, the surface of this platykurtic is to main connecting rod (1) axis position.

3. A seedling gripping device as claimed in claim 1, characterized in that: the number of the hinge seats (6) is three or four or five.

4. A seedling gripping device as claimed in claim 1, characterized in that: the spring mounting groove (8) is positioned above the guide seat (3), and the tightening springs (9) are wound on the outer side surfaces of the spring mounting grooves (8) at the same height of all the movable arms (7).

5. A seedling gripping device as claimed in claim 1, characterized in that: and a coating block (15) which is in contact with the air bag (5) is arranged on the outer surface of the movable arm (7) at the position of the air bag (5).