CN111011000A

CN111011000A - Flexible fruit picking device

Info

Publication number: CN111011000A
Application number: CN201911270405.6A
Authority: CN
Inventors: 尹凯欣
Original assignee: Shenzhen Wuyue Logistics Co Ltd Guangzhou Branch
Current assignee: Shenzhen Wuyue Logistics Co Ltd Guangzhou Branch
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-04-17

Abstract

The invention discloses a flexible fruit picking device, and belongs to the technical field of fruit picking equipment. The telescopic holding rod is rotatably connected with the picking head through the internal thread sleeve and the external thread rod, the cutting knife in the picking head can be pulled by a rope to rotate, the fruit handle clamped in the bayonet of the fruit handle is pressed by the cutting edge, the picking head is rotated by pulling the telescopic holding rod, and the cutting knife is further used for cutting the fruit handle at the upper end of the fruit in a surrounding way, compared with the traditional device for shearing the fruit handle in a single direction, the cutting effect of the fruit tree picking device is greatly improved, the swinging of the branches during cutting is reduced, the falling buffer sheet arranged in the cylinder body can buffer the fruit at a reduced speed, and then the fruit falls onto the ground through the falling foam bag arranged at the bottom of the cylinder body, so that the flexible fruit is not easy to collide and damage when falling, the main body of the device is not influenced by the weight of the accumulated fruit to hinder an operator to control the fruit tree picking device, and the picking, the picking efficiency is improved.

Description

Flexible fruit picking device

Technical Field

The invention belongs to the technical field of fruit picking equipment, and particularly relates to a flexible fruit picking device.

Background

Fruit is the third crop of the crop plant following food and vegetables, and has become a large support for the economic development of rural areas in many areas. But the mechanization level of orchard production is still in the starting stage, and the mechanization degree of fruit picking is lower. Fruit harvesting is an important link in the orchard production process, has the characteristics of strong seasonality and labor intensity, and the used labor force accounts for 35-45% of the labor force used in the whole production process. However, the fruit forest is generally distributed in uneven mountainous regions, and the area of the fruit growers is small, so that the fruit growers are not suitable for large-scale mechanized production, and therefore, most of fruit harvesting is mainly carried out by manual picking. The manual picking needs more labor force, the labor intensity is high, the manual picking is in contradiction with the shortage of agricultural labor force and the fact that the labor cost is increased, and meanwhile, the quality of the picking operation is directly related to the storage, processing and sale of fruits, so that the market price and the economic benefit are finally influenced; on the other hand, when picking the fruit of eminence, generally all with the help of the cat ladder or need climb the tree and pick, not only take trouble and laboursome, inefficiency, still produce the potential safety hazard easily, also there are many portable fruit picking devices on the existing market, but its structure is fairly simpler, mostly is shaft-like hand-held device, mainly picks the fruit through dragging or shearing the fruit branch of single fruit, and its fruit recovery ratio is almost the same with artifical the picking, has just overcome the picking of high altitude fruit.

The mechanical fruit harvesting technology is widely applied to developed countries such as the United states, Spain, Italy and the United kingdom, the harvested objects are mainly apricot, almond, olive, gingko, walnut, tangerine and the like, and the vibration type mechanical harvesting technology is most commonly applied. General research at home and abroad shows that the fruit recovery rate is closely related to the excitation frequency and the amplitude when fruits are picked in a vibration mode, the difference between the excitation frequency and the amplitude for realizing high recovery rate of different types of fruit trees is large, but the general rule is that the higher the frequency is, the larger the amplitude is, the higher the recovery rate is, but the too high amplitude can cause damage to trees, and the vibration time is not too long. Firstly, the variety of fruit trees is various, the planting regionality of the fruit trees is strong, particularly, the planting of the forest fruits mainly takes the hilly mountain land, and a few of the planting trees are also planted on plain and wasteland, so that the difference between national source mechanical regions is caused; secondly, a low close planting mode is mostly adopted for orchard planting, the average row spacing of the orchard is 2-3 meters, the average plant spacing is 1.5-2 meters, the average tree height is 3-3.5 meters, the crown thickness is about 3.5 meters, and the trunk height is 0.3-0.5 meter, so that the orchard is closed and unsmooth in ventilation due to the fact that the crown thickness is close to the planting row spacing of fruit trees and the fruit branches and leaves between adjacent rows are staggered with each other; thirdly, most orchards are planted in small houses, most fruit growers extremely pursue the single yield of fruit trees, and the row spacing and the plant spacing of forest fruits are shortened, so the operation space is crowded, large equipment cannot enter the orchards to work, and for some ripe fruits with flexible appearance, such as juicy peaches, persimmons and the like, the skin is thin, so the fruits are easy to damage when picked by a machine, and manual picking not only consumes time and labor, wastes a great amount of manpower resources, and has patent numbers: CN201710847267.8 discloses a persimmon picking tool, a flexible fruit similar to persimmon is picked, but the stalk skin of some fruits such as persimmon is thick and inside fibre is thick, it is thick and strong to rely on manpower pulling and then drive its V-shaped sharp edge of plucking fruit portion to slide the persimmon stalk and cut to be difficult to once successfully, and some fruits such as persimmon are at the insecure fruit stalk and fruit joint when ripe, pulling by a wide margin causes the fruit to drop easily, cause unnecessary waste, and can make device weight constantly increase when flourishing fruit portion loads too much fruit, make the staff difficult to hold, and the device is based on hand control, flourishing fruit portion capacity is limited, it need constantly withdraw the unloading after full of, waste time.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the flexible fruit picking device aims at the problems that the poor cutting effect of the existing flexible fruit picking device on fruit stalks easily causes shaking to cause fruit on fruit trees to fall, the weight of the device after the fruit is filled is increased and is not easy to control, and the unloading time is wasted due to continuous withdrawing after the fruit is filled in one time.

In order to solve the technical problems, the invention adopts the following technical scheme:

a flexible fruit picking device comprises a picking head and a telescopic holding rod; the telescopic holding rod is arranged under the picking head, the picking head comprises a cylindrical barrel body, a mounting plate with a notch and a disc shape is fixedly arranged at the opening part at the top end of the barrel body, the top end of the barrel body is not shielded by the mounting plate, namely a fruit inlet is arranged at the notch part of the mounting plate, a rectangular fruit handle bayonet is arranged on the mounting plate and close to the middle part of the fruit inlet, an arc-shaped cutting knife is arranged at the left side of the fruit handle bayonet, a rotating shaft is fixedly connected with the middle part of the cutting knife, the cutting knife is rotatably connected on the mounting plate through the rotating shaft, a torsional spring is sleeved on the rotating shaft in the cutting knife, an internal thread sleeve fixedly connected at the top end of the telescopic holding rod is sleeved outside the external thread rod, internal threads of the internal thread sleeve correspond to threads on the outer side of the external thread rod, springs are respectively and fixedly connected at two sides of the outer, the position of the left side of the barrel body in the picking head, which is close to the bottom end, is provided with a sliding foam bag communicated with the inside and the outside, and the lowest part of the telescopic holding rod is rotatably connected with a pressing handle.

Preferably, the upper end of the cutting knife is a knife edge, and the knife edge above the cutting knife is in a right-facing state under the condition of no external force.

Preferably, the top end of the cutting knife is fixedly connected with a rope, the rope rightwards crosses over a bayonet of the fruit handle and bypasses an upper guide wheel fixedly connected with the right upper end of the cylinder body, the rope bypasses the upper guide wheel and then bypasses a lower guide wheel fixedly connected at the right lower part of the cylinder body and the opposite position of the upper guide wheel in the direction parallel to the side wall of the cylinder body, and the rope bypasses the lower guide wheel and then is fixedly connected to a pressing handle hinged to the lowest end of the telescopic holding rod along the telescopic holding rod.

Preferably, a wire rewinding device is arranged at the joint of the rope and the pressing handle.

Preferably, the lower end of the falling foam bag extends to the ground.

Preferably, the bottom of the cylinder in the picking head is in a circular arc shape converging towards the middle.

Preferably, a plurality of falling buffer sheets which are circumferentially fixed on the inner wall around the central axis of the cylinder body are arranged in the middle of the cylinder body, and the falling buffer sheets are not connected and are made of rubber materials with good elasticity.

Preferably, the cylinder in the picking head is made of PVC material.

Preferably, the cutting edge on the cutting knife can be arranged as a saw-toothed cutting edge.

Compared with other methods, the method has the beneficial technical effects that:

the telescopic holding rod arranged in the invention is rotationally connected with the picking head through the internal thread sleeve and the external thread rod, the cutting knife in the picking head can drive the rope to pull the cutting knife to rotate by the pressing handle on the telescopic holding rod, and further the fruit handle clamped in the bayonet of the fruit handle at the top end of the cylinder body in the picking head is pressed by the cutting edge of the cutting knife, and the linear motion is converted into the circular motion by pulling the telescopic holding rod, so that the picking head rotates, and further the cutting knife carries out the surrounding type extrusion cutting on the fruit handle at the upper end of the fruit, compared with the unidirectional shearing force of the fruit handle in the traditional device, the invention has the advantages that the cutting effect is greatly improved, and the swinging of branches during the cutting is reduced, a plurality of mutually independent falling buffer sheets arranged in the cylinder body carry out the speed reduction and the buffer on the cut and fallen flexible fruit, and then the fruit falls, not only make difficult collision impaired when flexible fruit whereabouts like this, the device main part can not aggravate and hinder operating personnel to its control by the influence of the fruit gravity of picking moreover to need not to withdraw frequently the picking device and carry out the fruit collection, the save time has also improved picking efficiency.

Drawings

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

fig. 2 is a schematic view of the structure of a picking head 1 in the device of the present invention;

fig. 3 is a schematic top view of the picking head 1 in fig. 2;

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 2;

FIG. 5 is an enlarged view of area B of FIG. 2;

FIG. 6 is an enlarged view of area C of FIG. 3;

FIG. 7 is a schematic view of the structure of a cutting blade 103 in the device of the present invention;

1. picking heads; 101. a barrel; 1011; an externally threaded rod; 102. mounting a plate; 103. a cutting knife; 1031. a blade; 1032. a rotating shaft; 1033. a torsion spring; 104. a fruit stem bayonet; 105. dropping the buffer sheet; 106. an upper guide wheel; 107. a rope; 108. a lower guide wheel; 109. fruit entrance; 2. a telescopic holding rod; 201. an internally threaded sleeve; 202. a spring; 3. pressing the handle; 4. the foam bag was slid off.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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. The words "upper", "lower", "left" and "right" when used herein are merely intended to designate corresponding upper, lower, left and right directions in the drawings, and do not limit the structure thereof.

A flexible fruit picking device as shown in fig. 1-6, comprising a picking head 1 and a telescopic holding rod 2; as shown in fig. 1, the telescopic holding rod 2 is arranged right below the picking head 1, the picking head 1 comprises a cylindrical barrel body 101, a mounting plate 102 with a cut disc shape is fixedly arranged at the opening of the top end of the barrel body 101, as shown in fig. 3, a fruit inlet 104 is arranged at the position where the top end of the barrel body 101 is not shielded by the mounting plate 102, namely, the cut position of the mounting plate 102, so that the picking head 1 is convenient to operate and control, fruits can extend into the barrel body 101 through the fruit inlet 104, a rectangular fruit stem bayonet 104 is arranged on the mounting plate 102 and near the middle of the fruit inlet 104, when the fruits extend into the barrel body 1 from the fruit inlet 104, the picking head 1 can be moved to enable fruit stems left outside to be clamped into the fruit stem bayonet 104, as shown in fig. 3, the fruit stem bayonet 104 is left and provided with an arc-shaped cutting knife 103, a rotating shaft 1032 is fixedly connected to the middle of the cutting, thus, the cutting knife 103 can rotate clockwise to cut the fruit stem by the blade 1031 above the cutting knife 103, as shown in fig. 6, the torsion spring 1033 is sleeved on the rotating shaft 1032 in the cutting knife 103, so that the cutting knife 103 which rotates right and is cut can be rotated and reset in the opposite direction by the elastic deformation restoring force of the torsion spring 1033, as shown in fig. 2 and 5, the external thread rod 1011 is sleeved with the internal thread sleeve 201 which is fixedly connected with the top end of the telescopic holding rod 2, the internal thread of the internal thread sleeve 201 corresponds to the external thread of the external thread rod 1011, so that the telescopic holding rod 2 can be pulled to convert the up and down linear motion into the rotary circular motion by the engagement and rotation of the threaded rod and the thread sleeve, two springs 202 are respectively and fixedly connected with two sides of the excircle end of the internal thread sleeve 201, and the other ends of the two springs, picking head 1 after being convenient for to rotate like this because receive the recovery after spring 202 elastic deformation to reset, as shown in fig. 1 and 2, barrel 101 left side in picking head 1 is close to bottom position department and is equipped with inside and outside landing foam bag 4 of intercommunication, the fruit accessible landing foam bag 4 that falls into barrel 101 like this falls subaerially, the fruit that avoids accumulating in picking head 1 aggravates the whole weight of device, influence personnel control it, the several on landing foam bag 4 aerifys the gasbag can greatly reduced the fruit and when falling rather than the power of mutual contact collision, the easy impaired fruit of protection flexibility, flexible holding rod 2 is connected with in the rotation of below and presses handle 3, operating personnel accessible presses handle 3 to control cutting knife 103 like this and makes its clamp get and cut the fruit handle.

As shown in fig. 2, the cutting blade 1031 is provided at the upper end of the cutting blade 103, the cutting blade 1031 above the cutting blade 103 is in a right-facing state under the condition of no external force, so that when the cutting blade 103 is rotated rightwards by the pulling force of the rope 107, the cutting blade 1031 can contact and press the fruit stalks in the fruit stalk bayonets 104, and when the pressing handle 3 is released, i.e. when the cutting blade 103 is not pulled by the rope 107, the elastic deformation restoring force of the torsion spring 1033 on the rotating shaft 1032 of the cutting blade 103 can be used for restoring the cutting blade 103 to the original state to prepare for the next operation.

As shown in fig. 1, 2 and 3, a rope 107 is fixedly connected to the top end of the cutting knife 103, the rope 107 goes right across the fruit stem bayonet 104 and bypasses the upper guide wheel 106 fixedly connected to the upper right end of the barrel body 101, the rope 107 bypasses the upper guide wheel 106 and then bypasses the lower guide wheel 108 fixedly connected to the lower right side of the barrel body 101 at the position opposite to the upper guide wheel 106 in the direction parallel to the side wall of the barrel body 101, the rope 107 bypasses the lower guide wheel 108 and then is fixedly connected to the pressing handle 3 hinged to the lowermost end of the telescopic holding rod 2 along the telescopic holding rod 2, so that the picking head 1 can be moved to locate the fruit in the barrel body 1 and the fruit stem at the fruit stem joint is clamped in the fruit stem bayonet 104, at this time, the pressing handle 3 is rotated rightwards by holding the pressing handle 3, the rope 107 is driven to pull the cutting knife 103 to rotate rightwards, so that the, the picking head 1 is convenient to rotate to drive the cutting knife 103 to rotate so as to perform girdling on the fruit stalks of the coarse fibers, so that the fruits fall down along with the cut fruit stalks.

The connecting part of the rope 107 and the pressing handle 3 is provided with the wire rewinding device, so that when the telescopic holding rod 2 is adjusted to be elongated, the wire rewinding device is loosened to lengthen the rope 107 so as not to obstruct the adjustment of the telescopic holding rod 2, and when the telescopic holding rod 2 is adjusted to be shortened, the wire rewinding device can be tightened to prevent the rope 107 from being wound on the guide wheel tightly to influence the use function.

Wherein the lower end of the falling foam bag 4 extends to the ground.

As shown in fig. 1 and 2, the bottom of the cylinder 101 in the picking head 1 is in a shape of a circular arc converging towards the middle, so that the fruits can roll along the bottom into the slide-down foam bag 4 after falling to the bottom of the cylinder 101.

As shown in fig. 1, 2 and 4, a falling buffer sheet 105 fixed on the inner wall of the barrel 101 around the central axis of the barrel 101 is provided at a middle position inside the barrel 101, and the falling buffer sheets 105 are not connected and made of a rubber material with good elasticity, so that when fruits fall through, the collision force is small and the falling speed is reduced due to the flexible resistance of the fruits, and the flexible fruits are protected by buffering.

The cylinder body 101 in the picking head 1 is made of PVC materials, so that the manufacturing cost can be reduced, the whole weight of the picking head can be reduced due to small mass, the picking head is convenient to operate and control, and the collision with fruits can be reduced due to low hardness.

Wherein, the blade 1031 on the cutting knife 103 can be set to be a saw-toothed blade, so as to prevent the fruit stem from sliding during cutting and improve the cutting effect.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims

1. A flexible fruit picking device comprises a picking head (1) and a telescopic holding rod (2), and is characterized in that the telescopic holding rod (2) is arranged under the picking head (1), the picking head (1) comprises a cylindrical barrel (101), a mounting plate (102) with a notch disc shape is fixedly mounted at the opening at the top end of the barrel (101), a fruit inlet (104) is arranged at the position where the top end of the barrel (101) is not shielded by the mounting plate (102), namely the notch of the mounting plate (102), a rectangular fruit handle bayonet (104) is opened on the mounting plate (102) and close to the middle of the fruit inlet (104), an arc-shaped cutting knife (103) is arranged at the left side of the fruit handle bayonet (104), a rotating shaft (1032) is fixedly connected in the middle of the cutting knife (103), and the cutting knife (103) is rotatably connected on the mounting plate (102) through the rotating shaft (1032), the cover has torsional spring (1033) on pivot (1032) in cutting knife (103), external screw thread pole (1011) overcoat has fixed connection in the internal thread sleeve (201) on flexible holding rod (2) top, internal thread sleeve (201) internal thread is corresponding with the screw thread in the external screw thread pole (1011) outside, internal thread sleeve (201) excircle end both sides are fixedly connected with spring (202) respectively, the other end difference fixed connection of two springs (202) is on barrel (101) bottom corresponds the position and is presented the tilt state, barrel (101) left side in picking head (1) is close to bottom position department and is equipped with inside and outside landing foam bag (4) of intercommunication, flexible holding rod (2) below is rotated and is connected with and presses handle (3).

2. A flexible fruit picking device according to claim 1, characterised in that the cutting knife (103) is a blade (1031) near the upper end, and the blade (1031) above the cutting knife (103) is in a right-facing position without external force.

3. The flexible fruit picking device according to claim 1, characterized in that a rope (107) is fixedly connected to the top end of the cutting knife (103), the rope (107) crosses the fruit stem bayonet (104) rightwards and bypasses the upper guide wheel (106) fixedly connected to the upper right end of the cylinder body (101), the rope (107) bypasses the upper guide wheel (106) and then bypasses a lower guide wheel (108) fixedly connected to the lower right of the cylinder body (101) at the position opposite to the upper guide wheel (106) towards the direction parallel to the side wall of the cylinder body (101), and the rope (107) bypasses the lower guide wheel (108) and then is fixedly connected to the pressing handle (3) hinged to the lowest end of the telescopic holding rod (2) along the telescopic holding rod (2).

4. A flexible fruit picking device according to claim 1 or 3 characterised in that a take-up is provided where the rope (107) connects to the pressing handle (3).

5. A flexible fruit picking device according to claim 1, characterised in that the lower end of the falling foam sack (4) extends to the ground.

6. The flexible fruit picking device according to claim 1, characterized in that the bottom of the cylinder (101) in the picking head (1) is in a shape of a circular arc converging towards the middle.

7. A flexible fruit picking device according to claim 1 characterised in that the interior of the barrel (101) is provided with drop bumpers (105) fixed to the inner wall around the central axis of the barrel (101) at intermediate positions, the plurality of drop bumpers (105) being unconnected to one another and being formed of a resilient rubber material.

8. A flexible fruit picking device according to claim 1, characterised in that the cylinder (101) in the picking head (1) is made of PVC material.

9. A flexible fruit picking device according to claim 1, characterised in that the cutting edge (1031) on the cutting knife (103) is configured as a serrated cutting edge.