CN112369205B

CN112369205B - A easily use antifatigue device of picking for kiwi fruit

Info

Publication number: CN112369205B
Application number: CN202011203580.6A
Authority: CN
Inventors: 韩世明; 杜江; 胡冬冬; 王月霞
Original assignee: Liupanshui Normal University
Current assignee: Liupanshui Normal University
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-06
Anticipated expiration: 2040-11-02
Also published as: CN112369205A

Abstract

The invention discloses an easy-to-use anti-fatigue picking device for kiwi fruits, which comprises a back frame, a screening mechanism, a back bag, a telescopic arm, a conveying pipe and a picking mechanism, wherein the back frame and the conveying pipe adopt foldable structures and are convenient to carry and store, the telescopic arm is provided with a damping structure and supports a telescopic arm body and arms of picking personnel, the hand fatigue of the picking personnel is relieved, and meanwhile, blades for shielding visual fields are pushed away by utilizing gas injection, so that mature kiwi fruits are more easily found, the picking efficiency is improved, pulp cannot be damaged in the process of cutting off fruit stalks, the primary screening of fruit shapes can be carried out, the back bag is easy to disassemble and assemble, the picking personnel do not need to bow frequently, and the waist fatigue is relieved. The easy-to-use anti-fatigue picking device for the kiwi fruits, disclosed by the invention, has the advantages of reasonable structure, convenience in use, high efficiency and the like, and effectively solves the problem that the body of a person is easy to fatigue by a kiwi fruit picking mode.

Description

A easily use antifatigue device of picking for kiwi fruit

Technical Field

The invention relates to the field of kiwi fruit planting, in particular to an easy-to-use anti-fatigue picking device for kiwi fruits.

Background

In recent years, along with the continuous development of agricultural science and technology, more and more people begin to plant the kiwi fruit, the rack need be built to kiwi fruit planting mode commonly used at present, the kiwi fruit plant is fixed and is grown on the rack, because the kiwi fruit hangs on the rack, in addition the kiwi fruit is sheltered from to the kiwi fruit plant blade great easily, need the frequent hand that makes progress of when picking to look for, pick, then bow and put into the frame with the kiwi fruit in, picking personnel's health is tired easily, and inefficiency. Therefore, it is necessary to invent an easy-to-use fatigue-resistant picking device for kiwi fruits.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the problem that exists among the above-mentioned, provide an easily-used antifatigue device of picking for kiwi fruit, its is rational in infrastructure, has advantages such as convenient to use, efficient, effectively solves the problem that kiwi fruit picking mode makes people's health tired easily.

The technical scheme adopted by the invention for solving the technical problems is as follows: an easy-to-use anti-fatigue picking device for kiwi fruits comprises a back frame, a screening mechanism, a back bag, a telescopic arm, a conveying pipe and a picking mechanism, wherein the back frame comprises a back plate, a back belt, a positioning mechanism, an upper frame and a lower frame; the braces are arranged on two sides of the front surface of the back plate, and the front surface of the back plate is also provided with an arc waist protecting plate; the back surface of the back plate is provided with an inwards concave cavity aligned with the waist protecting plate, and the cavity is internally provided with a gas storage mechanism, a controller and a storage battery;

the upper frame and the lower frame are both provided with C-shaped structures, the upper frame and the lower frame are sequentially arranged from top to bottom, and two ends of the upper frame and two ends of the lower frame are respectively hinged with two sides of the back surface of the back plate; the positioning mechanism consists of two plates, one ends of the two plates are hinged with each other, and the other ends of the two plates are respectively hinged with the upper frame and the back plate; the upper frame and the lower frame are respectively provided with a hook;

the screening mechanism comprises a cylinder with a central axis arranged in the horizontal direction, a connecting sleeve is fixedly arranged on an axial opening of the cylinder, a downward screening hole is formed in the wall of the cylinder along the axis, and a conical speed reduction net sleeve is respectively arranged on the screening holes; the cylinder is also fixedly provided with an L-shaped connecting plugboard which is inserted into the slot arranged on the back plate and fixedly connected with each other; the back bag is sleeved in the upper frame and the lower frame, the upper end and the lower end of the back bag are respectively provided with a connecting hole to be connected with the hook, the inner cavity of the back bag is divided into a plurality of grids, and the opening of each grid is aligned with the outlet of one conical speed-reducing net sleeve;

the telescopic arm comprises a damping shaft, a connecting piece, an inner sleeve arm and an outer sleeve arm; the inner sleeve arm and the outer sleeve arm are both of hollow structures, and the inner sleeve arm is sleeved in the inner cavity of the outer sleeve arm; the damping shaft is horizontally fixed on the back of the back plate, the connecting piece is connected with the damping shaft, and the connecting piece is hinged with the inner sleeve arm through a vertically arranged pivot, so that the inner sleeve arm has damping rotation on a vertical plane and can rotate on a horizontal plane;

the inner sleeve arm is also provided with a terminal communicated with the inner cavity of the inner sleeve arm, and the terminal is connected with the gas storage mechanism so that gas is sprayed out of the outer sleeve arm; the handle is used for pushing the outer sleeve arm, and a control button is arranged on the handle to control the opening and closing of the gas storage mechanism;

the picking mechanism comprises a sleeve arranged on an outer sleeve arm, a first cutting plate and a second cutting plate which are both provided with crescent structures are arranged on an opening at one end of the sleeve, notches are formed in the first cutting plate and the second cutting plate in an aligned mode, a cutting knife is arranged between the first cutting plate and the second cutting plate, the cutting knife is driven by a motor fixedly arranged on the sleeve, and the cutting knife passes through the notches when rotating;

the conveying pipe comprises a flexible hose body, a flexible spring and a speed reduction valve; the telescopic hose body and the telescopic spring are sleeved with each other, and the telescopic spring is embedded into the surface of the telescopic hose body; the speed reduction valve is an arc-shaped rubber plate, the rubber plate is fixedly arranged on the inner cavity of the flexible hose body along the circumferential direction to form the speed reduction valve, and the speed reduction valve is arranged in the inner cavity of the flexible hose body at a medium distance; and two ends of the conveying pipe are respectively connected with the connecting sleeve and the picking mechanism.

Furthermore, the back of the back plate is also provided with a plurality of auxiliary frames for preventing the backpack from deforming, and the upper frame and the auxiliary frames are connected with each other through flexible connecting bands.

Furthermore, one end of the connecting sleeve facing the inner cavity of the cylinder is chamfered, and the chamfer and the inner wall of the cylinder are in smooth transition.

Furthermore, the inner cavity of the cylinder is in a horn-shaped structure, the inner diameter of one end provided with the connecting sleeve is smaller than that of the other end of the cylinder, and a slope is formed in the inner cavity of the cylinder to guide the kiwi fruit to roll.

Further, the gas storage mechanism, the controller and the storage battery are flush with the surface of the back plate or are arranged below the surface of the back plate.

Furthermore, the interior sleeve arm be cavity cuboid structure, wherein the one end that interior sleeve arm and connecting piece are connected is enclosed construction, and the other end of interior sleeve arm is equipped with the opening, the inner chamber of outer sleeve arm is the rectangle with interior sleeve arm appearance adaptation, and outer sleeve arm both ends all are equipped with the opening.

Furthermore, all be equipped with the blade on cutting off cutter, first cutting off board, the second cutting off board, and the cutting off cutter is the arc, the interior arc blade of cutting off cutter is towards the breach.

Furthermore, the gas storage mechanism comprises a gas cylinder, a gas pump and a one-way valve, wherein a gas outlet of the gas pump is connected with the gas cylinder through the one-way valve, and a gas outlet of the gas cylinder is connected with the terminal through a gas pipe.

The invention has the beneficial effects that: an easy-to-use anti-fatigue picking device for kiwi fruits comprises a back frame, a screening mechanism, a back bag, a telescopic arm, a conveying pipe and a picking mechanism, wherein the back frame and the conveying pipe adopt foldable structures and are convenient to carry and store; the telescopic arm is provided with a damping structure, so that the telescopic arm body and the arms of picking personnel are supported during picking, and the hand fatigue of the picking personnel is reduced; the telescopic arm is connected with the gas storage mechanism, and the blades which shield the visual field are pushed away by gas injection, so that mature kiwi fruits are more easily found, and the picking efficiency is improved; the picking mechanism can guide the kiwi fruit stem into the notch and cut off the kiwi fruit stem by using the cutting knife, so that the pulp cannot be damaged in the process; the kiwi fruit enters a screening mechanism through the speed reduction of a conveying pipe, and the primary screening of fruit shapes can be carried out; the backpack is used for containing screened kiwi fruits in a classified manner, is easy to disassemble and assemble, and is free from frequent stooping of picking personnel, so that waist fatigue is relieved; the kiwi fruit picking device is reasonable in structure, has the advantages of being convenient to use, high in efficiency and the like, and effectively solves the problem that the body of a person is tired easily due to a kiwi fruit picking mode.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the back of an easy-to-use fatigue-resistant picking device for kiwi fruits according to the present invention;

FIG. 2 is a schematic diagram of the backpack structure of the easy-to-use fatigue-resistant picking device for kiwi fruits according to the present invention;

FIG. 3 is a schematic diagram of the front overall structure of the easy-to-use fatigue-resistant picking device for kiwi fruits;

FIG. 4 is a schematic diagram of the overall structure of the back frame of the easy-to-use fatigue-resistant picking device for kiwi fruits;

FIG. 5 is a schematic diagram of the overall structure of the screening mechanism of the easy-to-use fatigue-resistant picking device for kiwi fruits according to the present invention;

FIG. 6 is a schematic diagram of the internal structure of the screening mechanism of the easy-to-use fatigue-resistant picking device for kiwi fruits according to the present invention;

FIG. 7 is a schematic view of the external structure of the conveying pipe of the easy-to-use fatigue-resisting picking device for kiwi fruits;

FIG. 8 is a schematic view of the internal structure of the conveying pipe of the easy-to-use fatigue-resisting picking device for kiwi fruits;

FIG. 9 is a schematic diagram of the internal structure of the picking mechanism of the easy-to-use fatigue-resistant picking device for kiwi fruits;

FIG. 10 is a schematic view of the external structure of the picking mechanism of the easy-to-use fatigue-resistant picking device for kiwi fruits in the invention;

fig. 11 is a schematic structural diagram of a gas storage mechanism of the easy-to-use fatigue-resistant picking device for kiwi fruits.

The scores in the figures are as follows:

1. a back frame 10, a back plate 11, a back belt 12, a positioning mechanism 13, an upper frame 14, a flexible connecting belt 15, an auxiliary frame 16, a lower frame 17, a damping shaft 18, a waist protecting plate 19, a hook 2, a screening mechanism 21, a cylinder 22, a conical speed reducing net sleeve 23, a connecting inserting plate 24, a connecting sleeve 25, a slot 3, a back bag 31, a connecting hole 4, a telescopic arm 41, a connecting piece 42, the device comprises a terminal, 43, an inner sleeve arm, 44, a handle, 45, an outer sleeve arm, 5, a conveying pipe, 51, a flexible hose body, 52, a flexible spring, 53, a speed reduction valve, 6, a picking mechanism, 61, a sleeve, 62, a first cutting plate, 63, a second cutting plate, 64, a motor, 65, a cutting knife, 66, a notch, 7, an air storage mechanism, 71, an air bottle, 72, an air pump, 73, a one-way valve, 8, a controller, 9 and a storage battery.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

An easy-to-use anti-fatigue picking device for kiwi fruits as shown in fig. 1 to 11 comprises a back frame 1, a screening mechanism 2, a back bag 3, a telescopic arm 4, a conveying pipe 5 and a picking mechanism 6.

As shown in fig. 4, the back frame 1 includes a back plate 10, a back belt 11, a positioning mechanism 12, an upper frame 13, and a lower frame 16. As shown in fig. 3, the straps 11 are arranged on two sides of the front surface of the back plate 10, the front surface of the back plate 10 is further provided with an arc-shaped waist protecting plate 18, the waist protecting plate 18 is attached to the waist curve of the picking person, a good supporting effect is formed, and the waist of the picking person is prevented from being crushed by the back plate 10. As shown in fig. 4, the back of the back plate 10 is provided with an inward-concave cavity aligned with the waist-protecting plate 18, and the cavity is provided with the air storage mechanism 7, the controller 8 and the storage battery 9. The storage battery 9 is used for being connected with the controller 8 to supply power, the gas storage mechanism 7 is connected with the controller 8, and the gas storage mechanism 7 is controlled by the controller to be charged/discharged.

As shown in fig. 4, the upper frame 13 and the lower frame 16 both have a C-shaped structure, the upper frame 13 and the lower frame 16 are sequentially arranged from top to bottom, and both ends of the upper frame 13 and the lower frame 16 are respectively hinged with both sides of the back surface of the back panel 10; the positioning mechanism 12 is composed of two plates, one ends of the two plates are hinged with each other, and the other ends of the two plates are respectively hinged with the upper frame 13 and the back plate 10; the upper frame 13 and the lower frame 16 are respectively provided with a hook 19.

In the embodiment shown in fig. 1, 3 and 4, the back of the back plate 10 is further provided with a plurality of auxiliary frames 15 for preventing the backpack 3 from deforming, the auxiliary frames 15 have a C-shaped structure, two ends of each auxiliary frame 15 are respectively hinged to two sides of the back plate 10, and the upper frame 13 and the auxiliary frame 15, and the

auxiliary frames

15 and 15 are connected to each other through flexible connecting strips 14.

When the two plates of the positioning mechanism 12 are unfolded, the upper frame 13 and the auxiliary frame 15 are unfolded to be horizontally arranged, and when the two plates are folded (overlapped), the upper frame 13 and the auxiliary frame 15 are folded close to the back of the back plate 10, so that the size is reduced, and the storage and the carrying are convenient.

As shown in fig. 1, the screening mechanism 2 includes a cylinder 21 with a central axis facing to the horizontal direction, and a connecting sleeve 24 is fixedly arranged on an axial opening of the cylinder 21 for connecting with the conveying pipe 5. As shown in fig. 6, drum 21 section of thick bamboo wall is equipped with screening hole down along the axis, it is accurate to say from the one end that is provided with connecting sleeve 24 toward the direction of the drum other end, be equipped with the screening hole that the aperture becomes big in proper order, be equipped with toper speed reduction net cover 22 on the screening hole respectively, the one end and the screening jogged joint of toper speed reduction net cover 22, the other end aperture of toper speed reduction net cover 22 reduces gradually, and toper speed reduction net cover 22 has certain elasticity, after the kiwi fruit got into toper speed reduction net cover 22, toper speed reduction net cover 22 produced a resistance and slowed down to the kiwi fruit, prevent that it from falling rotten.

As shown in fig. 5, an "L" shaped connection insertion plate 23 is further fixedly disposed on the cylinder 21, the connection insertion plates 23 are inserted into the insertion slots 25 disposed on the back plate 10 and are fixedly connected to each other, specifically, one end of the "L" shaped connection insertion plate 23 is fixedly connected to the cylinder 21, and the other end of the "L" shaped connection insertion plate 23 is inserted into the insertion slot 25 shown in fig. 4 and is fixedly connected to each other.

In an embodiment as shown in fig. 6, one end of the connecting sleeve 24 facing the inner cavity of the cylinder 21 is chamfered, the chamfer is in smooth transition with the inner wall of the cylinder 21, the inner cavity of the cylinder 21 is in a horn shape, the inner diameter of the end provided with the connecting sleeve 24 is smaller than that of the other end of the cylinder, and a slope is formed in the inner cavity of the cylinder 21 to guide the kiwi fruit to roll.

As shown in fig. 1, 2 and 3, the backpack 3 is sleeved in the upper frame 13 and the lower frame 16, the upper end and the lower end of the backpack 3 are respectively provided with a connecting hole 31 to be connected with the hook 19, the inner cavity of the backpack 3 is divided into a plurality of cells, and the opening of each cell is aligned with the outlet of one conical speed-reducing mesh 22. As shown in fig. 4, the hook 19 on the upper frame 13 has an upward opening and is used for bearing the weight of the kiwi fruit when being connected with the haversack 3; the opening of the hook 19 on the lower frame 16 is downward, and the back bag 3 is pulled and opened mainly by the self weight of the lower frame 16 when the lower frame is connected with the back bag 3; the auxiliary frame 15 is used to prevent the deformation of the haversack 3, including the deformation of the haversack 3 caused by the squeezing of the kiwi fruit, and the squeezing deformation of the haversack 3 by an external object.

The telescopic arm 4 comprises a damping shaft 17, a connecting piece 41, an inner sleeve arm 43 and an outer sleeve arm 45; the inner sleeve arm 43 and the outer sleeve arm 45 are both of hollow structures, and the inner sleeve arm 43 is sleeved in the inner cavity of the outer sleeve arm 45; the damping shaft 17 is horizontally fixed on the back of the back plate 10, the connecting piece 41 is connected with the damping shaft 17, and meanwhile, the connecting piece 41 is hinged with the inner sleeve arm 43 through a vertically arranged pivot, so that the inner sleeve arm 43 has damping rotation on a vertical plane, and meanwhile, the inner sleeve arm 43 can also rotate on a horizontal plane.

The inner sleeve arm 43 is also provided with a terminal 42 communicated with the inner cavity of the inner sleeve arm, and the terminal 42 is connected with the gas storage mechanism 7, so that gas is sprayed out from the outer sleeve arm 45; the outer sleeve arm 45 is also provided with a handle 44, the handle 44 is used for pushing the outer sleeve arm 45, and the handle 44 is provided with a control button for controlling the opening and closing of the gas storage mechanism 7.

In one embodiment as shown in fig. 11, the gas storage mechanism 7 comprises a gas cylinder 71, a gas pump 72 and a one-way valve 73, wherein the outlet of the gas pump 72 is connected with the gas cylinder 71 through the one-way valve 73, and the outlet of the gas cylinder 71 is connected with the terminal 42 through a gas pipe.

In one embodiment, the inner arm 43 is a hollow rectangular structure, wherein one end of the inner arm 43 connected to the connecting member 41 is a closed structure, the other end of the inner arm 43 is provided with an opening, the inner cavity of the outer arm 45 is a rectangle adapted to the shape of the inner arm 43, the structure prevents the telescopic arm 4 from turning over, and both ends of the outer arm 45 are provided with openings, so that gas can be sprayed out from the front end of the outer arm 45.

As shown in fig. 9 and 10, the picking mechanism 6 includes a sleeve 61 disposed on the outer casing arm 45, as shown in fig. 4, the sleeve 61 is disposed at the front end of the outer casing arm 45 and is close to the air injection port of the outer casing arm 45, a first cutting plate 62 and a second cutting plate 63 both having a crescent structure are disposed on an opening at one end of the sleeve 61, a notch 66 is aligned on the first cutting plate 62 and the second cutting plate 63 for accommodating the stem of the kiwi fruit, a cutting knife 65 is disposed between the first cutting plate 62 and the second cutting plate 63, the cutting knife 65 is driven by a motor 64 fixedly disposed on the sleeve 61, the cutting knife forms a cutting relationship with the first cutting plate 62 and the second cutting plate 63, and the cutting knife 65 cuts the stem through the notch 66 when rotating.

In one embodiment, the cutting blades 65, the first cutting plate 62 and the second cutting plate 63 are all provided with cutting edges, the cutting blades 65 are arc-shaped, the inner arc-shaped cutting edges of the cutting blades 65 face the notches 66, and the first cutting plate 62 and the second cutting plate 63 with the inner arc surfaces and the crescent structures are easy to surround and cut the fruit stems when the fruit stems are cut. The first cutting plate 62 and the second cutting plate 63 are crescent-shaped, so that the fruit handle is effectively guided to enter the notch, and the fruit pulp cannot enter the notch due to the limited size of the notch 66 in the process of cutting the fruit handle, so that the fruit pulp is prevented from being cut.

As shown in fig. 7 and 8, the delivery pipe 5 includes a flexible hose body 51, a flexible spring 52 and a deceleration flap 53; the flexible hose body 51 and the flexible spring 52 are sleeved with each other, and the flexible spring 52 is embedded into the surface of the flexible hose body 51; the speed reduction valve 53 is an arc-shaped rubber plate, the rubber plate is fixedly arranged on the inner cavity of the flexible hose body 51 along the circumferential direction to form the speed reduction valve 53, and the speed reduction valve 53 is arranged in the inner cavity of the flexible hose body 51 at a medium distance; two ends of the conveying pipe 5 are respectively connected with the connecting sleeve 24 and the picking mechanism 6.

In one embodiment, the gas storage mechanism 7, the controller 8 and the battery 9 are flush with the surface of the back plate 10 or mounted below the surface of the back plate 10, so as to prevent the protruding parts of the gas storage mechanism 7, the controller 8 and the battery 9 from puncturing the back bag 3 or crushing the kiwi fruit.

When the invention is used, the back frame 1 is unfolded and sleeved with the back bag 3, the picking personnel back up the picking device, the handle 44 is pushed and pulled along the axial direction of the inner sleeve arm 43 to extend or shorten the length of the telescopic arm 4, the handle 44 is swung left and right and lifted up and down to change the position of the picking mechanism, the telescopic arm is controlled by a control button on the handle 44 to spray air to push away the blades which shield the sight, after the mature kiwi fruit is found, the fruit is sleeved in the sleeve 61, the fruit stem is guided into the notch 66, the motor 64 of the picking mechanism is controlled by a control button on the handle 44 to cut off the fruit stalks, the kiwi fruits are conveyed to the screening mechanism by the conveying pipe in a speed reducing way, through the screening of the screening holes, the kiwi fruit enters the conical speed-reducing net sleeve 22 to be reduced and falls into the back bag 3, after picking a certain number of kiwi fruits, the filled knapsack 3 is taken down by picking personnel in the same row, and picking can be restarted by replacing the empty knapsack 3. The back frame is accomodate through folding after picking.

In the use, flexible arm supports flexible arm body and operating personnel's arm through the damping axle, and picking personnel need not bow frequently, alleviates picking personnel's health fatigue, and the back of the body bag 3 is changed easily, has promoted picking efficiency, adopts many places speed reduction structure in the kiwi fruit transportation process, prevents that the fruit from falling into the evil with fingers, also can avoid fish tail pulp when cuting the carpopodium.

The easy-to-use anti-fatigue picking device for the kiwi fruits is reasonable in structure and comprises a back frame, a screening mechanism, a back bag, a telescopic arm, a conveying pipe and a picking mechanism, wherein the back frame and the conveying pipe are of foldable structures and are convenient to carry and store; the telescopic arm is provided with a damping structure, so that the telescopic arm body and the arms of picking personnel are supported during picking, and the hand fatigue of the picking personnel is reduced; the telescopic arm is connected with the gas storage mechanism, and the blades which shield the visual field are pushed away by gas injection, so that mature kiwi fruits are more easily found, and the picking efficiency is improved; the picking mechanism can guide the kiwi fruit stem into the notch and cut off the kiwi fruit stem by using the cutting knife, so that the pulp cannot be damaged in the process; the kiwi fruit enters a screening mechanism through the speed reduction of a conveying pipe, and the primary screening of fruit shapes can be carried out; the backpack is used for containing screened kiwi fruits in a classified manner, is easy to disassemble and assemble, and is free from frequent stooping of picking personnel, so that waist fatigue is relieved; the kiwi fruit picking device is reasonable in structure, has the advantages of being convenient to use, high in efficiency and the like, and effectively solves the problem that the body of a person is tired easily due to a kiwi fruit picking mode.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an easy-to-use antifatigue device of picking for kiwi fruit, characterized by: the multifunctional backpack comprises a back frame (1), a screening mechanism (2), a backpack (3), a telescopic arm (4), a conveying pipe (5) and a picking mechanism (6), wherein the back frame (1) comprises a back plate (10), a back belt (11), a positioning mechanism (12), an upper frame (13) and a lower frame (16); the braces (11) are arranged on two sides of the front surface of the back plate (10), and the front surface of the back plate (10) is also provided with an arc-shaped waist protecting plate (18); the back surface of the back plate (10) is provided with an inward concave cavity aligned with the waist protecting plate (18), and the cavity is internally provided with a gas storage mechanism (7), a controller (8) and a storage battery (9);

the upper frame (13) and the lower frame (16) are both of C-shaped structures, the upper frame (13) and the lower frame (16) are sequentially arranged from top to bottom, and two ends of the upper frame (13) and the lower frame (16) are respectively hinged with two sides of the back surface of the back plate (10); the positioning mechanism (12) is composed of two plates, one ends of the two plates are hinged with each other, and the other ends of the two plates are respectively hinged with the upper frame (13) and the back plate (10); the upper frame (13) and the lower frame (16) are respectively provided with a hook (19);

the screening mechanism (2) comprises a cylinder (21) with a central axis arranged in the horizontal direction, a connecting sleeve (24) is fixedly arranged on an axial opening of the cylinder (21), screening holes facing downwards are formed in the wall of the cylinder (21) along the axis, and conical speed reduction net sleeves (22) are respectively arranged on the screening holes; the cylinder (21) is also fixedly provided with an L-shaped connecting inserting plate (23), and the connecting inserting plates (23) are inserted into slots (25) formed in the back plate (10) and are fixedly connected with each other; the back bag (3) is sleeved in the upper frame (13) and the lower frame (16), the upper end and the lower end of the back bag (3) are respectively provided with a connecting hole (31) to be connected with the hook (19), the inner cavity of the back bag (3) is divided into a plurality of grids, and the opening of each grid is aligned with the outlet of one conical speed-reducing net sleeve (22);

the telescopic arm (4) comprises a damping shaft (17), a connecting piece (41), an inner sleeve arm (43) and an outer sleeve arm (45); the inner sleeve arm (43) and the outer sleeve arm (45) are both of hollow structures, and the inner sleeve arm (43) is sleeved in the inner cavity of the outer sleeve arm (45); the damping shaft (17) is horizontally fixed on the back surface of the back plate (10), the connecting piece (41) is connected with the damping shaft (17), and meanwhile, the connecting piece (41) is hinged with the inner sleeve arm (43) through a vertically arranged pivot, so that the inner sleeve arm (43) has damping rotation on a vertical plane, and meanwhile, the inner sleeve arm (43) can also rotate on a horizontal plane;

the inner sleeve arm (43) is also provided with a terminal (42) communicated with the inner cavity of the inner sleeve arm, and the terminal (42) is connected with the gas storage mechanism (7) so that gas is sprayed out from the outer sleeve arm (45); the outer sleeve arm (45) is also provided with a handle (44), the handle (44) is used for pushing the outer sleeve arm (45), and the handle (44) is provided with a control button for controlling the opening and closing of the gas storage mechanism (7);

the picking mechanism (6) comprises a sleeve (61) arranged on an outer sleeve arm (45), a first cutting plate (62) and a second cutting plate (63) which are both provided with crescent structures are arranged on an opening at one end of the sleeve (61), notches (66) are formed in the first cutting plate (62) and the second cutting plate (63) in an aligned mode, a cutting knife (65) is arranged between the first cutting plate (62) and the second cutting plate (63), the cutting knife (65) is driven by a motor (64) fixedly arranged on the sleeve (61), and the cutting knife (65) passes through the notches (66) when rotating;

the conveying pipe (5) comprises a telescopic hose body (51), a telescopic spring (52) and a speed reduction valve (53); the telescopic hose body (51) and the telescopic spring (52) are sleeved with each other, and the telescopic spring (52) is embedded into the surface of the telescopic hose body (51); the speed reduction valve (53) is an arc-shaped rubber plate, the rubber plate is fixedly arranged on the inner cavity of the flexible hose body (51) along the circumferential direction to form the speed reduction valve (53), and the speed reduction valve (53) is arranged in the inner cavity of the flexible hose body (51) at a medium distance; two ends of the conveying pipe (5) are respectively connected with the connecting sleeve (24) and the picking mechanism (6).

2. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: the back of the back plate (10) is also provided with a plurality of auxiliary frames (15) for preventing the back bag (3) from deforming, and the upper frame (13) and the auxiliary frames (15) as well as the auxiliary frames (15) and the auxiliary frames (15) are connected with each other through flexible connecting bands (14).

3. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: one end of the connecting sleeve (24) facing the inner cavity of the cylinder (21) is chamfered, and the chamfer and the inner wall of the cylinder (21) are in smooth transition.

4. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: the inner cavity of the cylinder (21) is of a horn-shaped structure, the inner diameter of one end provided with the connecting sleeve (24) is smaller than the direction of the other end of the cylinder, and a slope is formed in the inner cavity of the cylinder (21) to guide the kiwi fruit to roll.

5. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: the gas storage mechanism (7), the controller (8) and the storage battery (9) are flush with the surface of the back plate (10) or are arranged lower than the surface of the back plate (10).

6. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: inner sleeve arm (43) be cavity cuboid structure, wherein the one end that inner sleeve arm (43) and connecting piece (41) are connected is the enclosed construction, the other end of inner sleeve arm (43) is equipped with the opening, the inner chamber of overcoat arm (45) is the rectangle with inner sleeve arm (43) appearance adaptation, and overcoat arm (45) both ends all are equipped with the opening.

7. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: cutting edges are arranged on the cutting knife (65), the first cutting plate (62) and the second cutting plate (63), the cutting knife (65) is arc-shaped, and the inner arc-shaped cutting edge of the cutting knife (65) faces to the notch (66).

8. The easy-to-use fatigue-resistant picking device for kiwi fruits according to claim 1, characterized in that: the gas storage mechanism (7) comprises a gas cylinder (71), a gas pump (72) and a one-way valve (73), wherein the gas outlet of the gas pump (72) is connected with the gas cylinder (71) through the one-way valve (73), and the gas outlet of the gas cylinder (71) is connected with the terminal (42) through a gas pipe.