CN108076825B

CN108076825B - High-altitude fruit picking device

Info

Publication number: CN108076825B
Application number: CN201810161542.5A
Authority: CN
Inventors: 陈润泽; 宋树权; 袁旭
Original assignee: Yancheng Institute of Technology
Current assignee: Yancheng Institute of Technology
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2023-10-13
Anticipated expiration: 2038-02-26
Also published as: CN108076825A

Abstract

The application discloses a high-altitude fruit picker, which comprises a picking head, a picking rod and a driving mechanism, wherein the picking head is provided with a first driving mechanism; the picking head is hollow and spherical and comprises a fixed claw and a movable claw; the fixed claw is fixed at the top end of the picking rod and is hemispherical, and an inclined opening is formed in the fixed claw; the bottom of the movable claw is arranged at the top end of the picking rod through a rotating shaft, the outer side of the movable claw is connected with a reset spring, and the other end of the reset spring is fixedly connected to the picking rod; an elastic piece is arranged between the movable claw and the fixed claw, the elastic piece is connected with a steel wire rope, the steel wire rope is inserted into the picking rod, the other end of the steel wire rope is connected with a driving mechanism, and the driving mechanism is used for linking the steel wire rope and the movable claw to open and close the picking head. The picking device provided by the application is convenient and flexible to use, accurate and quick in cutting, and can be used for timely adjusting electric or manual operation.

Description

High-altitude fruit picking device

Technical Field

The application belongs to agricultural machinery, and particularly relates to a high-altitude fruit picker.

Background

A common similar picking device is purely manual picking, the picking claw heads of the picking head are controlled and fixed by holding a pressing handle connected with a rope, fruits are gripped by the rope, the picking is forcefully pulled, and single picking is carried out (such as CN 103797972A, CN 2514634Y, a device which is commonly known as a three-claw fruit picker in the market, and the like). The manual operation is completely manual, the labor is wasted, and the picking machine is not suitable for long-time operation and large-scale picking. The length is fixed, the picking in a high range is not achieved, the picking in a low range is achieved, the operation is awkward, and the picking is inconvenient. Pulling and picking can cause damage to fruit trees, and can not ensure that the fruits have no scars, and the fruit picking has influence on the beauty of the fruits and the reproduction of the fruit trees. Without the collecting device, the efficiency is low due to single collection. Some common picking devices consist of picking rods, pull ropes and rod head spring scissors. The scissors are controlled by the stay cord to cut branches through hand pulling rope picking. The fruit with branches falls to the ground and is collected. (such as a device which is commonly known in the market and is named as a high-altitude tree pruning fruit picker, etc.), even if a mesh bag is additionally arranged, the mesh bag can only be hung at a position under the rod head scissors (such as CN 107231887A and a picking device with a cloth bag which is commonly known in the market and is named as a loquat peach picker, etc.), and after a certain amount of the mesh bag is collected, the operation is stopped, and fruits are poured out from the mesh bag. But has the disadvantages that: the pulling rope is cut and picked with very labor; the fruit trees are obviously injured by cutting branch picking, and the fruit is not harvested in the next year; the ground fruits can be greatly damaged under the condition of no net bag; if the net bag is additionally arranged, the net bag is very laborious along with the increase of weight when being hung in the half space, and is not suitable for long-time large-scale operation. A small portion of the picking devices not present in the market are collected using common network management (e.g., CN 107371602A, CN 107306599A, CN 107548698A, etc.). Fruits fall to the ground after falling into the pipeline, the common guide pipe is used for collecting, the speed reduction effect is not obvious, the falling speed of the fruits is high, the fruits can fall too fast, and the fruits are easy to break. Even if the picking device uses a plastic conduit, an equidistant telescopic net is arranged in the picking device, and the equidistant decelerating effect is poor (such as CN 107278517A and CN 107580872A). But equidistant deceleration effect is not good, and very influences labor efficiency, and the flexibility of the catheter is obviously not good because of the flexible net material, and the quality is too heavy, thereby increasing labor burden.

Disclosure of Invention

The application aims to: aiming at the defects in the prior art, the application provides the high-altitude fruit picker which is more convenient and flexible to pick and accurate and rapid to cut.

The technical scheme is as follows: the application relates to a high-altitude fruit picker, which comprises a picking head, a picking rod and a driving mechanism; the picking head is hollow and spherical and comprises a fixed claw and a movable claw; the fixed claw is fixed at the top end of the picking rod and is hemispherical, and an inclined opening is formed in the fixed claw; the bottom of the movable claw is arranged at the top end of the picking rod through a rotating shaft, the outer side of the movable claw is connected with a reset spring, and the other end of the reset spring is fixedly connected to the picking rod; an elastic piece is arranged between the movable claw and the fixed claw, the elastic piece is connected with a steel wire rope, the steel wire rope is inserted into the picking rod, the other end of the steel wire rope is connected with a driving mechanism, and the driving mechanism is linked with the steel wire rope to realize the opening and closing of the movable claw.

The driving mechanism is an electric push rod or a mechanical handle.

Preferably, the driving mechanism comprises a push rod assembly arranged in the picking rod, the push rod assembly comprises an upper sliding plate, a lower sliding plate, an electric push rod, a wire, a perforated baffle plate and a pressure spring, the wire rope is fixedly connected with the upper sliding plate, the electric push rod is fixed between the upper sliding plate and the lower sliding plate, the pressure spring is fixed between the lower sliding plate and the perforated baffle plate, the perforated baffle plate is fixedly connected with the picking rod, and the wire passes through the pressure spring and the perforated baffle plate and then is connected with a power supply and a switch, so that the upper sliding plate and the lower sliding plate can slide along the inner wall of the picking rod under the action of the electric push rod and the pressure spring.

Furthermore, the driving mechanism can be further improved, the lower sliding piece is externally connected with another steel wire rope, and the other end of the other steel wire rope penetrates through the pressure spring and the perforated baffle to be connected with a mechanical handle, so that mechanical and electric control integration is realized.

The length of the other steel wire rope can be adjusted according to actual conditions. In order to facilitate the telescopic adjustment of the picking rod by adjusting the length of the other steel wire rope, an S-shaped buckle is preferably arranged between the lower sliding piece and the other steel wire rope.

Further, in order to make the picking head more flexible and convenient, the movable claws include a cutting claw and an auxiliary claw.

The two auxiliary claws are positioned at two sides of the cutting claw, and the cutting claw is arranged right opposite to the fixing claw.

Further, a detachable T-shaped blade is arranged at the free end of the cutting claw, and a cutting allowance notch is arranged at the corresponding position of the fixing claw.

Preferably, the inclined opening is provided at a middle lower portion of the fixing jaw.

More preferably, the inclined opening is externally connected with a collecting net, and non-equidistant pouring openings are arranged in the collecting net, so that collision or falling injury and scratch of fruits are avoided to the greatest extent.

Further preferably, the picking rods are connected through a screwing type expansion joint so as to realize expansion and contraction of the picking rods and be used for picking fruits with different heights. The picking rod is provided with thick knots and thin knots which are respectively connected through a screwing type expansion joint. Screwing and loosening the spiral sleeve head to realize detail expansion and contraction, screwing and tightening the spiral sleeve head, fixing a picking rod and picking fruits with different heights.

The telescopic joint of the telescopic rod is screwed and consists of an external screw sleeve (internal screw) and an internal pipe sleeve (with external screw thread and certain toughness, and a strip notch is formed on the pipe). The inner tube sleeve is tightly matched with the thick joint head part of the telescopic rod. The outer sleeve is screwed tightly, the inner sleeve wall is tightly clung to the details of the telescopic pipe, the telescopic pipe is tightly matched, and the length of the telescopic rod is fixed. And the inner tube sleeve wall and the telescopic tube detail are loosened by reverse rotation, and the length of the telescopic rod detail is adjusted. When the driving mechanism is a mechanical handle, the length of the movable steel wire rope is increased or decreased (another steel wire rope with different lengths is replaced), and the matching rod stretches. When the driving device is an electric push rod, the steel wire rope is intermittently connected with the mechanical handle, the S buckle is empty and is not connected with the other steel wire rope, and the driving device is arranged in the thin rod. The power supply lead is provided with allowance, and the telescopic rod can freely stretch out and draw back.

In order to further facilitate the operation, a circle of hand-held rod sleeve of soft rubber can be arranged on the picking rod.

The above-mentioned fixing means may be any conventionally available means, for example: the pipe sleeve can be fixed at the top end of the picking rod by gluing or fastening screws; the steel wire rope and the other steel wire rope can be directly welded with the sliding piece into a whole; one end of the pressure spring is fixed at the center of the perforated baffle plate in an adhesive or welding mode, and the other end of the pressure spring freely extends to a downward sliding piece. In addition, the diameter of the pressure spring at the sliding piece is slightly smaller than the inner wall of the telescopic rod; the openings of the opening baffles are used for the wire rope and the lead to pass through.

Working principle: according to the high-altitude fruit picking rod, in a non-use state, the reset spring and the elastic piece are in a free state, under the action of the driving mechanism, the steel wire rope pulls the elastic piece to drive the movable claw to be close to the fixed claw so as to realize closing and picking of fruits, the reset spring is pulled to be in a tight state, and the picked fruits are poured out through the inclined opening on the fixed claw so as to finish picking; under the action of the tight reset spring, the movable claw is opened, the elastic piece resets and the next round of picking is carried out. Further, under the condition of the cutting claw, the T-shaped blade is more convenient to pick fruits with pedicel; under the condition that the collecting net with non-equidistant pouring openings is arranged, picked fruits directly fall into the collecting frame through the inclined opening and the collecting net.

When the driving mechanism is an electric push rod, a power supply is switched on, a switch is toggled to rotate forward, the direct current electric push rod is driven to work forward, a steel wire rope linkage slide sheet is pushed to move downwards (the tail direction of a picker of a 'lower' finger in the process), a compression pressure spring is used for linkage the steel wire rope to pull downwards, a movable claw is pulled through an elastic piece to realize rapid closing of a cutting claw and auxiliary claws, the auxiliary claws on two sides push fruits to fold inwards, pedicel is pushed to a middle blade cutting position, a T-shaped blade at the head of the middle cutting claw synchronously cuts off the pedicel, and a blade part cuts into a cutting allowance notch to ensure complete cutting; the picked fruits fall into the abdominal cavity of the picking head, freely fall into a flexible unequal-interval floor type buffering collecting net from an inclined opening, and slowly fall into a ground collecting basket through a multistage unequal-interval decelerating pouring opening; after picking, the switch is toggled to reverse, and the device returns to a pre-picking state under the assistance of the pressure spring and the reset spring to pick next round.

Under the condition that the driving mechanism is a mechanical handle, the electric device is ensured to be in a zeroing state, namely, a push rod is contracted, the control switch is in a zero position, and the moving range of the sliding plate is free; the picking rod is held by one hand, the mechanical handle is held by the other hand, the steel wire rope is driven to be linked integrally by pressing the lever, and the sliding piece is linked with the upper section of steel wire rope and the lower section of steel wire rope and can move up and down freely in the pipe wall, so that fruit picking is realized; the follow-up steps are the same as the electric working steps, the hand is loosened after picking, and the device returns to the pre-picking state by means of the pressure spring and the return spring.

The beneficial effects are that: compared with the prior art, the application has the following advantages:

(1) The picking device has two driving modes of electric and manual operation, and the electric picking device has the advantages of modern electromechanical combination, is convenient and quick, improves the efficiency, saves labor and meets the mechanical design requirement; the manual driving has the advantages of strong flexibility in response and strong maneuverability under the condition of small picking quantity, and can meet the special condition requirement of realizing manual picking;

(2) Push rods are widely used in various aspects of society, but are rarely used in picking devices; the direct-current electric push rod device is introduced into the picking device, and the mechanical force is used for replacing manpower, so that the labor intensity is reduced, the mechanical convenience for human life is embodied, and the labor intensity is reduced;

(3) The picker perfectly overcomes the defect that the market picker is not telescopic, can be easily telescopic and adjustable, and picks fruits with different heights; the danger of manual picking is avoided; solving the difficulty that the high place is difficult to pick; the portable fruit tree picking machine is convenient to carry and convenient to move and pick in fruit tree forests;

(4) The picking device is provided with the collecting device, so that the single collecting time is saved, the picking time is greatly reduced, and the picking efficiency is improved; the picking device adopts a two-claw auxiliary mode, and a middle claw cutting picking mode is not found in other similar picking devices at present; the reserved part of the pedicel is cut off stably, thereby being beneficial to the appearance and sales, not damaging fruits, picking flexibly, not damaging fruit trees and meeting the continuous production requirement of the fruit trees;

(5) The blade adopted by the picker is easy to detach, simultaneously meets the requirements, is suitable for picking long-pedicel fruits and short-pedicel fruits, meets the requirements of picking most common fruits on the market, and has the functions which cannot be realized by a single fruit picking device on the market;

(6) The flexible unequal-interval inverted-mouth buffering collection net (floor type) of the picker is used for grading and decelerating, so that nondestructive buffering collection of fruits is perfectly realized, buffering and tightening inverted mouths are arranged at unequal intervals, gradual deceleration is realized, fruits finally fall into a collection basket slowly, damage is avoided, and quality is guaranteed;

(7) In the case of manual picking, the length of the common picking device is not adjustable; the device is improved, the length of the other steel wire rope inside the picking rod can be easily and manually adjusted, and the picking rod is matched with the device to stretch out and draw back; perfectly solving the situation that the telescopic structure of the picking rod is in conflict with the structure of the internal fixed steel wire; the connector adopts a buckling mode, the s-buckle is connected with the adjustable flexible steel wire rope, and the flexible steel wire rope is matched with the picking rod to stretch out and draw back by changing the steel wire ropes with different lengths, so that the connector is convenient and quick to adjust.

Drawings

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

figure 2 is a schematic view of an open configuration of the picking head;

figure 3 is a schematic view of a closed configuration of the picking head;

FIG. 4 is a schematic view of a movable jaw face structure of a picking head;

FIG. 5 is a schematic view of a stationary jaw face of a picking head;

FIG. 6 is a schematic view of the internal connections of the picking claw;

FIG. 7 is a schematic view of the structure of the push rod assembly in the picking rod;

FIG. 8 is a schematic illustration of a pushrod assembly;

FIG. 9 is a schematic view of another wire rope connection within the picker bar;

FIG. 10 is a schematic illustration of an S-clip connection;

FIG. 11 is a schematic view of a mechanical handle attachment;

FIG. 12 is a schematic view of a screw-on expansion joint;

fig. 13 is a schematic view of the structure of the collecting net.

The novel picking head comprises a picking head (1), a picking rod (2), a driving mechanism (3), a fixed claw (4), an inclined opening (401), a cutting allowance notch (402), a pipe sleeve (403), a mounting frame (404), a fixed claw mounting hole (405), a movable claw (5), a reset spring (501), a protruding piece (502), a movable claw mounting hole (503), an elastic piece (6), a steel wire rope (7), the driving mechanism (8), a push rod assembly (9), an upper sliding piece (901), a lower sliding piece (902), an electric push rod (903), a wire (904), an opening baffle (905), a pressure spring (906), a power supply (10), a switch (11), another steel wire rope (12), a mechanical handle (13), an S-shaped buckle (14), a cutting claw (15), a T-shaped blade (1501), an auxiliary claw (16), a collecting net (17), a reversed opening (1701), a screwing type telescopic joint (18), a collecting basket (19), a first connecting piece (20), a holding rod sleeve (21) and a second connecting piece (22).

Detailed Description

The present application will be described in detail with reference to specific examples.

A high-altitude fruit picker as shown in fig. 1 comprises a picking head 1, a picking rod 2 and a driving mechanism 3; wherein, the picking head 1 is hollow sphere, as shown in figures 2, 3, 4 and 5, and comprises a fixed claw 4 and a movable claw 5; the fixed claw 4 is fixed at the top end of the picking rod 2 and is hemispherical, and the lower part of the fixed claw is provided with an inclined opening 401; the bottom of the movable claw 5 is arranged at the top end of the picking rod 2 through a rotating shaft, the outer side of the movable claw 5 is connected with a reset spring 501, and the other end of the reset spring 501 is fixedly connected to the picking rod 2; more specifically, the fixed claw 4 is a hemispherical claw with a collecting inclined opening 401, a pipe sleeve 403 is arranged at the bottom of the fixed claw, the fixed claw is sleeved at the top end of the picking rod 2 and then fixed by a screw, and a mounting frame 404 for mounting the movable claw is arranged on the pipe sleeve 403. The back of the movable claw 5 is provided with a protruding piece 502, and the protruding piece 502 and the mounting frame 404 are connected through screws to form a rotating shaft, so that the movable claw 5 can be movably opened and closed along the rotating shaft. Wherein the tube sleeve 403, the mounting bracket 404 and the fixing claw 4 are integrated.

As shown in fig. 2, 3, 4 and 5, the movable jaw 5 includes a cutting jaw 15 and an auxiliary jaw 16. Wherein the number of auxiliary claws 16 is two, which are positioned at both sides of the cutting claw 15, and the cutting claw 15 is disposed right opposite to the fixing claw 4. The free end of the cutting claw 15 is provided with a detachable T-shaped blade 1501, and a cutting allowance notch 402 is arranged at the corresponding position of the fixed claw 4, so that the cutting and engagement are convenient during picking. As shown in fig. 6, the movable claw 5 and the fixed claw 4 are connected through an elastic piece 6, then the elastic piece 6 is connected with a steel wire rope 7, the steel wire rope 7 is inserted into the picking rod 2, the other end of the steel wire rope 7 is connected with a driving mechanism 8, and the driving mechanism 8 is used for linking the steel wire rope 7 to realize the opening and closing of the movable claw 5. Specifically, the fixed claw 4 is internally provided with a fixed claw mounting hole 405, the movable claw 5 is internally provided with a movable claw mounting hole 503, firstly, one end of the elastic member 6 is fixed on the fixed claw mounting hole 404, then, the movable claw mounting hole 503 is connected with the other end of the elastic member 6 through the first connecting member 20, and finally, the connecting part is connected with the steel wire rope 7, wherein the first connecting member 20 is an S buckle.

The above-mentioned high altitude fruit picker has fused two kinds of driving methods of electricity and manual, as shown in fig. 7 and 8, actuating mechanism 8 includes a push rod assembly 9 that sets up in picking the pole, push rod assembly 9 includes slider 901, lower slider 902, electric putter 903, wire 904, trompil baffle 905, pressure spring 906, wire rope 7 and slider 901 fixed connection, electric putter 903 is fixed between slider 901 and lower slider 902, pressure spring 906 is fixed between slider 902 and trompil baffle 905, trompil baffle 905 and picking pole 2 fixed connection, wire 904 passes behind pressure spring 906 and the trompil baffle 905 and connects power 10 and switch 11 for slider 901 and slider 902 down can be under the effect of power drive electric putter 903 and pressure spring 906 along picking the pole inner wall. More specifically, as shown in fig. 8, the upper slide plate 901 and the lower slide plate 902 are welded together through four truncated steel wires, and the electric push rod 903 is fixed in the picking rod through a bolt and is positioned between the upper slide plate 901 and the lower slide plate 902.

The other wire rope 12 is connected to the outside of the lower slide plate 902, as shown in fig. 9 and 10, the second connecting piece 22 is fixed at the bottom of the lower slide plate 902, and then the other wire rope 12 is connected through the S-buckle 14, so that the length of the other wire rope 12 can be adjusted according to the actual situation. As shown in fig. 11, the other end of the other wire 12 is connected to a mechanical handle 13 through a compression spring 906 and an aperture stop 905.

The inclined opening 401 of the fixed claw 4 is externally connected with a collecting net 17, as shown in fig. 13, the collecting net 17 is internally provided with non-equidistant pouring openings 1701, and then is externally connected with a collecting basket 19. As shown in fig. 12, the picking rods 2 are connected by a screw-type telescopic joint 18 so as to realize the telescopic action of the picking rods for picking fruits with different heights. Specifically, the picking rod 2 is provided with thick knots and details, the thick knots and the details are respectively connected through the screwing type telescopic joint 18, the screwing type telescopic joint is screwed to loosen the spiral sleeve head, the telescopic details are realized, the spiral sleeve head is screwed, the picking rod is fixed, and fruits with different heights are picked. For further convenience of operation, a circle of hand-held rod cover 21 of soft rubber is also arranged on the picking rod 2 as shown in fig. 1.

According to the high-altitude fruit picking rod, in the unused state, the reset spring and the elastic piece are in the free state, under the condition that the driving mechanism is electric, the power supply is switched on, the switch is toggled to rotate forward, the direct-current electric push rod is driven to work forward, the steel wire rope linkage slide sheet is pushed to move downwards (the tail direction of the picker which is referred to as 'down' in the description), the compression spring is linked with the steel wire rope to pull downwards, the movable claw is pulled by the elastic piece, the cutting claw and the auxiliary claw are rapidly closed, the auxiliary claws on two sides push fruits to fold inwards, the fruit pedicel is pushed to the cutting position of the middle blade, the T-shaped blade at the head part of the middle cutting claw synchronously cuts off the fruit pedicel, and the blade part cuts into the notch of the cutting allowance, so that complete cutting is ensured; the picked fruits fall into the abdominal cavity of the picking head, freely fall into a flexible unequal-interval floor type buffering collecting net from an inclined opening, and slowly fall into a ground collecting basket through a multistage unequal-interval decelerating pouring opening; after picking, the switch is toggled to reverse, and the device returns to a pre-picking state under the assistance of the pressure spring and the reset spring to pick next round.

Regarding the state remarks of the wire rope in case of telescoping: under the electric drive, the stretching and retraction are freely carried out, no requirement is imposed on the linkage steel wire rope, and the manual picking handle only plays a role in holding; under the manual condition, the S-shaped connecting buckle is required to be additionally provided with another steel wire rope with different lengths, picking is realized, and only the other steel wire rope is required to be sleeved on the S-shaped connecting buckle, so that the picking is simple and convenient.

Description of picking fruit with and without pedicel: the fruit picking without pedicel only needs to remove the blade of the head of the picking cutting claw easily, the picking head is slightly pulled to pick, the head is processed smoothly, the damage is avoided, other working steps are similar, and most common fruit picking with pedicel can be completely met.

Claims

1. The high-altitude fruit picker is characterized by comprising a picking head (1), a picking rod (2) and a driving mechanism (3);

the picking head (1) is hollow and spherical and comprises a fixed claw (4) and a movable claw (5); the fixed claw (4) is fixed at the top end of the picking rod (2) and is hemispherical, and an inclined opening (401) is formed in the fixed claw; the movable claw (5) comprises two cutting claws (15) and two auxiliary claws (16), wherein the two auxiliary claws (16) are positioned at two sides of the cutting claw (15), and the cutting claw (15) is arranged right opposite to the fixed claw (4); the bottom of the movable claw (5) is arranged at the top end of the picking rod (2) through a rotating shaft, the outer side of the movable claw (5) is connected with a reset spring (501), and the other end of the reset spring (501) is fixedly connected to the picking rod;

an elastic piece (6) is arranged between the movable claw (5) and the fixed claw (4), the elastic piece (6) is connected with a steel wire rope (7), the steel wire rope (7) is inserted in a picking rod, the other end of the steel wire rope (7) is connected with a driving mechanism (3), the driving mechanism (3) is an electric push rod or a mechanical handle, the driving mechanism (3) comprises a push rod component (9) arranged in the picking rod, the push rod component (9) comprises an upper sliding plate (901), a lower sliding plate (902), an electric push rod (903), a wire (904), an opening baffle (905) and a pressure spring (906), the steel wire rope (7) is fixedly connected with the upper sliding plate (901), the electric push rod (903) is fixed between the upper sliding plate (901) and the lower sliding plate (902), the pressure spring (906) is fixed between the lower sliding plate (902) and the opening baffle (905) and is fixedly connected with the picking rod (2), the wire (904) passes through the pressure spring (906) and the opening baffle (905) and then is connected with a power supply (10) and a switch (11), and the other steel wire rope (902) is connected with the lower sliding plate (902), the other end of the other steel wire rope passes through the pressure spring (906) and the perforated baffle (905) to be connected with a mechanical handle (13); the picking head is opened and closed by the driving mechanism (3) linked with the steel wire rope (7) and the movable claw (5).

2. The picker according to claim 1, characterized in that an S-clip (14) is also provided between the lower slider (902) and the other wire rope.

3. The picker according to claim 2, characterized in that the free end of the cutting jaw (15) is provided with a detachable T-shaped blade (1501), and the corresponding position of the fixing jaw (4) is provided with a cutting allowance slot (402).

4. The picking device according to claim 1, wherein the inclined opening (401) is arranged at the middle lower part of the fixed claw (4), the inclined opening (401) is externally connected with a collecting net (17), and non-equidistant pouring openings (1701) are arranged in the collecting net (17).

5. The picker according to claim 1, characterized in that the picking rod (2) is more than two, connected with each other by a screw-type telescopic joint (18).