Fruit picking device facilitating screening

Abstract

The picking device comprises a collecting box, a screening mechanism is arranged in the collecting box and comprises a fruit receiving assembly, the screening mechanism comprises a waste opening formed in one end of the collecting box, a collecting opening is formed in one side of the collecting box, and the outer side of a second rotating shaft is sleeved with a torsional spring. The two ends of the torsional spring are fixedly connected with the collecting box and the fan-shaped plate respectively; a sieve plate is fixedly arranged in the collecting box, and a plurality of sieving holes are formed in the sieve plate; when picking operation is carried out, plants extrude fan-shaped plates, meanwhile, due to the fact that the fan-shaped plates are mutually overlapped and extruded, when a collecting box continuously moves, fruits are extruded into the collecting box through a collecting opening, collection of the fruits is facilitated, and when the fruits entering the collecting box through the collecting opening fall on the surface of a sieve plate, the fruits are prevented from falling off. And the fruits with the diameter smaller than that of the screening holes can fall on the surface of the conveying belt along with the screening holes, the convenience of fruit classification and screening is greatly improved, and manpower is saved.

Description

[0001] This invention patent application is a divisional application. The original application number is 202310279035.2. The application date is March 21, 2023. The name of the invention is A raspberry picking device. Technical Field

[0002] The present invention relates to the technical field of a fruit picking device that is convenient for screening, and in particular to a fruit picking device that is convenient for screening. Background Art

[0003] A fruit picking device is a mechanical device specially used for efficiently picking ripe fruits. It usually consists of main parts such as a picking head, a transmission system and a collection device. Among them, the collection device is generally a container or basket used to temporarily store fruits for subsequent centralized processing. However, in the actual process, some collection devices cannot screen and classify the fruits while collecting them, resulting in low fruit picking efficiency and increased labor costs. Summary of the Invention

[0004] The object of the present invention is to provide a fruit picking device that is convenient for screening, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fruit picking device that is convenient for screening, comprising a collecting box, a screening mechanism is provided inside the collecting box, the screening mechanism includes a fruit receiving assembly, the screening mechanism includes a waste port opened at one end of the collecting box, a collecting port is opened on one side of the collecting box, the fruit receiving assembly includes a rotating shaft 2 rotatably provided at the top end of the collecting box, the rotating shaft 2 is located at the edge of the collecting port, a fan-shaped plate is fixedly provided at the bottom end of the rotating shaft 2, and a plurality of the fan-shaped plates are superimposed and extruded and connected with each other, a buffer bead is fixedly provided at the top end of the fan-shaped plate, a torsion spring is provided on the outer side of the rotating shaft 2, and the two ends of the torsion spring are respectively fixedly connected to the collecting box and the fan-shaped plate; a screen plate is fixedly provided inside the collecting box, and a plurality of screening holes are opened inside the screen plate.

[0006] Preferably, the screening mechanism also includes a cleaning component, which includes motor 2, a gear 1 fixedly provided at the output end of motor 2, a reciprocating screw rod rotatably provided inside the collecting box, a gear 2 fixedly provided at one end of the reciprocating screw rod, the gear 2 meshing with gear 1, a scraper is slidably provided inside the collecting box, and the bottom end of the scraper is extrusion-connected to the screen plate, the scraper is screwed to the reciprocating screw rod, a fruit dropping port is provided inside the end of the screen plate near the waste port, and a fruit storage box 1 is detachably provided at the end of the collecting box near the waste port.

[0007] Preferably, a conveying mechanism is provided inside the collection box, and the conveying mechanism includes a fruit storage box 2 which is detachably provided at the end of the collection box away from the waste outlet, a motor 3 is fixedly provided on the side of the collection box away from the fan-shaped plate, a transmission shaft 1 is fixedly provided at the output end of the motor 3, and the transmission shaft 1 passes through the collection box, a transmission shaft 2 is rotatably provided inside the collection box, and the transmission shaft 2 passes through the collection box, the transmission shaft 2 and the transmission shaft 1 are sleeved with the same transmission belt at one end outside the collection box, the transmission shaft 2 and the transmission shaft 1 are sleeved on the outer surface of the collection box, and the conveyor belt is located below the screen plate, and the conveyor belt is located above the fruit storage box 2 at one end close to the transmission shaft 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the existing technical solutions, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 This is a schematic diagram of the overall structure of a fruit picking device that is convenient for screening according to the present invention;

[0010] Figure 2 This is a partial structural cross-sectional view of a fruit picking device for facilitating screening according to the present invention;

[0011] Figure 3 The present invention is a fruit picking device that is convenient for screening Figure 2 Enlarged view of part A;

[0012] Figure 4 This is a second partial structural cross-sectional view of a fruit picking device for facilitating screening according to the present invention;

[0013] Figure 5 The present invention is a fruit picking device that is convenient for screening Figure 4 Enlarged view of part B;

[0014] Figure 6 The present invention is a fruit picking device that is convenient for screening Figure 4 Enlarged view of part C in the middle;

[0015] Figure 7 This is a third partial structural cross-sectional view of a fruit picking device for facilitating screening according to the present invention;

[0016] Figure 8 This is the fourth partial structural sectional view of a fruit picking device for facilitating screening according to the present invention.

[0017] The corresponding relationship between the reference numerals and component names is as follows:

[0018] 1. Collection box; 2. Moving wheel; 3. Picking mechanism; 31. Supporting door frame; 32. Picking slot; 33. Rotating shaft 1; 34. Knocking rod; 35. Chute 1; 36. Guide rod; 37. Piston plate; 38. Air outlet; 39. Motor 1; 310. Turntable; 311. Chute 2; 312. Shaft fork; 313. Connecting rod; 314. Eccentric shaft; 4. Screening mechanism; 41. Waste outlet; 42. Collection port; 43. Fruit receiving assembly; 431. Rotating shaft 2; 432. Sector plate; 433, torsion spring; 434, buffer beads; 44, sieve plate; 45, sieve hole; 46, distribution box; 47, central control board; 48, cleaning component; 481, motor two; 482, gear one; 483, reciprocating screw rod; 484, gear two; 485, scraper; 49, fruit drop port; 410, fruit storage box one; 5, conveying mechanism; 51, fruit storage box two; 52, motor three; 53, drive shaft one; 54, drive shaft two; 55, transmission belt; 56, conveyor belt. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] The invention provides a fruit picking device which is convenient for screening.

[0021] See also Figure 1-5 In this embodiment, a fruit picking device that is convenient for screening includes a collecting box 1 and a moving wheel 2. A picking mechanism 3 for picking raspberry fruits is provided at the top of the collecting box 1. The picking mechanism 3 includes a supporting door frame 31 fixedly provided at the top of the collecting box 1. A picking groove 32 is provided at the bottom end of the supporting door frame 31. A rotating shaft 33 is provided inside the picking groove 32 for rotation, and a plurality of knocking rods 34 are fixedly provided on the outer surface of the rotating shaft 33; a transmission rotating shaft 33 is fixedly provided inside the top of the supporting door frame 31, and a motor 39 is provided to reciprocate and vibrate in the vertical direction inside the supporting door frame 31.

[0022] When picking raspberry fruits, the collecting box 1 and the picking mechanism 3 are driven by the moving wheel 2, so that the knocking rod 34 on the picking mechanism 3 is extended into the raspberry tree. At the same time, the rotating shaft 33 can be driven by the motor 39 to shake back and forth in the vertical direction of the supporting door frame 31, thereby driving the knocking rod 34 on the rotating shaft 33 to shake back and forth in the raspberry tree, knocking the branches and fruits. At this time, the ripe fruits will fall off the branches as the fruit trees shake and the knocking rod 34 knock, while the unripe fruits will still be retained due to the strong connection strength with the branches, waiting to be picked in the next picking process after they are ripe.

[0023] Optionally, the knocking rods 34 are evenly distributed on the surface of the rotating shaft 1 33 at equal intervals.

[0024] It should be noted that this embodiment does not restrict the connection method between the transmission shaft 33, the motor 39, and the support gantry 31. Regardless of the structure and connection method, as long as the transmission shaft 33 can reciprocate vertically within the support gantry 31 under the drive of the motor 39, it should be within the scope of protection of the present invention. Of course, a specific connection method between the transmission shaft 33, the motor 39, and the support gantry 31 can be designed, as shown below:

[0025] Specifically, a turntable 310 is fixedly provided at the output end of the motor 39, an eccentric shaft 314 is eccentrically fixedly provided on one side of the turntable 310, a shaft fork 312 is rotatably provided at the top end of the rotating shaft 33, a connecting rod 313 is rotatably provided inside the shaft fork 312, and the end of the connecting rod 313 away from the shaft fork 312 is rotatably connected to the eccentric shaft 314.

[0026] The above-mentioned process causes the output end of the motor 39 to drive the turntable 310 to rotate, and the turntable 310 drives the eccentric shaft 314 to rotate, so that the eccentric shaft 314 and the turntable 310 make eccentric motion with the eccentric shaft 314 and the turntable 310 as the center of the circle. At this time, the eccentric shaft 314 rises with the rotation of the turntable 310, and the eccentric shaft 314 pulls the shaft fork 312 to rise through the connecting rod 313. The shaft fork 312 drives the rotating shaft 1 33 and the knocking rod 34 to rise, and as the turntable 310 continues to rotate, the motor 1 39 can realize the reciprocating shaking of the transmission rotating shaft 1 33 in the vertical direction within the supporting door frame 31, thereby driving the knocking rod 34 to shake off the mature fruits while retaining the unripe fruits.

[0027] In the above embodiment, the connection between the rotating shaft 33 and the supporting door frame 31 can be further designed:

[0028] Specifically, a second slide groove 311 is provided inside the top of the supporting door frame 31, rifling is provided inside the second slide groove 311, the top of the rotating shaft 1 33 is slidably connected to the second slide groove 311, and a slider adapted to the rifling is provided at the top of the rotating shaft 1 33.

[0029] When the rotating shaft 33 moves up and down with the eccentric shaft 314, the rotating shaft 33 moves up and down repeatedly along the chute 2 311. At this time, when the picking device moves on the picking path, the rotating shaft 33 will be subjected to force in the horizontal direction. At this time, the slider at the top of the rotating shaft 33 can slide along the rifling inside the chute 2 311, so that the rotating shaft 33 rotates inside the chute 2 311. At the same time, the rotating shaft 33 drives the knocking rod 34 to rotate, making it easier for the picking device to advance on the path, while reducing the pulling of the knocking rod 34 on the fruit tree, thereby protecting the fruit tree.

[0030] It is understandable that in the above embodiment, the rotating shaft 1 33 can only actively shake in the vertical direction. Although the rotating shaft 1 33 can also rotate in the horizontal direction, it is a passive rotation and therefore cannot help to pick fruits. Therefore, the rotating shaft 1 33 can be further specifically designed as follows:

[0031] Specifically, a chute 1 35 is defined within the bottom end of the rotating shaft 1 33 . A guide rod 36 is slidably disposed within the chute 1 35 , and the guide rod 36 is fixedly connected to the collection box 1 . A piston plate 37 is fixedly disposed at the top end of the guide rod 36 . An air outlet 38 is defined within the bottom end of the rotating shaft 1 33 , and the air outlet 38 is connected to the chute 1 35 . Optionally, there can be one air outlet 38 , arranged in an arc shape. Preferably, there can be two or more air outlets 38 , all arranged in an arc shape and arranged in a clockwise or counterclockwise direction.

[0032] When shaft 1 (33) moves upward, guide rod 36 slides inside chute 1 (35), stabilizing shaft 1 (33) during its movement. Meanwhile, piston plate 37 squeezes the air inside chute 1 (35), forcing it to escape through air outlet 38. This expelled air exerts a reaction force on shaft 1 (33), generating a torsional force in the horizontal direction, causing shaft 1 (33) to begin to twist back and forth, thereby driving striking rod 34 to strike the branches and fruit horizontally. At this point, the ripe fruit is shaken both vertically and horizontally, making it easier for it to fall off the branches, improving picking efficiency. Furthermore, during the picking process, leaves and fruit often fall into the picking trough (32). The air exhausted from air outlet 38 can also blow these leaves and fruit out of the bottom of the picking trough (32), preventing the accumulation of branches and fruit that could affect the normal operation of the picking mechanism (3) and improving the stability of the machine.

[0033] Please see further Figure 6In the above embodiment, a screening mechanism 4 can also be designed. The collection box 1 is provided with a screening mechanism 4 for screening raspberry fruits. The screening mechanism 4 also includes a fruit receiving assembly 43 to prevent the raspberry fruits from falling. The fruit receiving assembly 43 is multiple and includes a second rotating shaft 431 rotatably arranged at the top of the collection box 1. The second rotating shaft 431 is located at the edge of the collection port 42. A fan-shaped plate 432 is fixedly provided at the bottom end of the second rotating shaft 431. The multiple fan-shaped plates 432 are superimposed and extruded and connected to each other. Buffer beads 434 made of silicone are fixedly provided at the top end of the fan-shaped plates 432. The buffer beads 434 are made of silicone. A torsion spring 433 is provided on the outer side of the second rotating shaft 431. The two ends of the torsion spring 433 are respectively fixedly connected to the collection box 1 and the fan-shaped plates 432. Preferably, the fan-shaped plates 432 are arranged to be tilted from high to low toward the collection port 42.

[0034] When the collection box 1 is moved near a raspberry plant, the raspberry plant presses against the fan-shaped plate 432, causing the fan-shaped plate 432 to rotate the second rotating shaft 431. At the same time, the fan-shaped plate 432 twists the torsion spring 433. At this time, the fan-shaped plate 432 is attached to the surface of the raspberry plant, conveniently catching the falling fruits. When the fruits fall, they first touch the buffer beads 434. Since the buffer beads 434 are made of silicone, they prevent the fruits from falling directly on the fan-shaped plate 432 and being damaged. At the same time, because the fan-shaped plate 432 is tilted toward the collection port 42, the fruits will naturally roll to the collection port 42. In addition, when some fruits accumulate on the fan-shaped plate 432, since the fan-shaped plates 432 are superimposed and squeezed on each other, when the collection box 1 moves, the fan-shaped plate 432 located above the front end will push the fruits accumulated on the surface of the fan-shaped plate 432 below the rear end, and the fruits will enter the interior of the collection box 1 through the collection port 42, which is conducive to collecting the fruits. When there are no raspberry plants at the front end of the travel route, the torsion spring 433 rebounds and drives the fan-shaped plate 432 to return to its initial position, so that the fan-shaped plate 432 remains in a fitted state.

[0035] In the above embodiment, the screening mechanism 4 can be further designed as follows:

[0036] Specifically, a sieve plate 44 is fixedly installed inside the collection box 1, and a plurality of sieve holes 45 are opened inside the sieve plate 44. A distribution box 46 is fixedly installed on the side of the collection box 1 away from the waste port 41, and a central control panel 47 is fixedly installed on the outside of the distribution box 46.

[0037] When the fruits enter the collection box 1 through the collection port 42, they will fall on the surface of the sieve plate 44, and the fruits with a diameter smaller than the sieve hole 45 will fall on the surface of the conveyor belt 56 along with the sieve hole 45. On the contrary, the fruits with a diameter larger than the sieve hole 45 will continue to remain on the surface of the sieve plate 44, which is convenient for sorting and screening the fruits and saves manpower. The central control board 47 is electrically connected to motor three 52, motor one 39, and motor two 481, which makes it convenient for staff to control the picking process.

[0038] In the above embodiment, the screening mechanism 4 can be further specifically designed as follows:

[0039] Specifically, the screening mechanism 4 also includes a cleaning component 48 for cleaning the collected branches and leaves. The cleaning component 48 includes a motor 2 481 fixedly arranged inside the distribution box 46, and a gear 1 482 is fixedly arranged at the output end of the motor 2 481. A reciprocating screw rod 483 is rotatably arranged inside the collection box 1, and the reciprocating screw rod 483 passes through the collection box 1 and the distribution box 46. The reciprocating screw rod 483 is located at one end inside the distribution box 46 and is fixed with a gear 2 484. The gear 2 484 is meshed with the gear 1 482. A scraper 485 is slidingly arranged inside the collection box 1, and the bottom end of the scraper 485 is squeezed and connected to the screen plate 44. The scraper 485 is screwed to the reciprocating screw rod 483. A fruit drop port 49 is opened inside the end of the screen plate 44 near the waste port 41. A fruit storage box 1 410 is detachably provided at one end of the collection box 1 near the waste port 41, and the fruit storage box 1 410 is located below the fruit drop port 49.

[0040] When there are fruits left on the surface of the sieve plate 44, motor 2 481 is started, and the output end of motor 2 481 drives gear 1 482 to rotate. At the same time, gear 1 482 drives the reciprocating screw rod 483 to rotate through the meshing gear 2 484. At this time, the scraper 485 moves back and forth along the reciprocating screw rod 483, and the scraper 485 squeezes the fruits left on the surface of the sieve plate 44 and moves in the direction close to the fruit drop opening 49. At this time, the fruits will fall into the interior of the fruit storage box 1 410 through the fruit drop opening 49, which is convenient for collecting large fruits. After the fruits fall into the fruit storage box 1 410, since the size of the branches and leaves is larger than the fruit drop opening 49, the scraper 485 continues to squeeze and drive the branches and leaves to move forward, so that the branches and leaves are discharged through the waste port 41, which is convenient for cleaning the branches and leaves, reducing the workload of cleaning the collected fruits in the later stage and improving work efficiency. When the interior of the fruit storage box 1 410 is full of fruits, the fruit storage box 1 410 is taken out from the inside of one side of the collection box 1, which is convenient for transporting the fruits.

[0041] Please see further Figure 7-8 In the above embodiment, a conveying mechanism 5 can also be designed.

[0042] Specifically, the interior of the collecting box 1 is provided with a conveying mechanism 5 for classifying and collecting raspberry fruits. The conveying mechanism 5 includes a fruit storage box 2 51 which is detachably arranged at the end of the collecting box 1 away from the waste port 41. A motor 3 52 is fixedly arranged on the side of the collecting box 1 away from the fan-shaped plate 432. A transmission shaft 1 53 is fixedly arranged at the output end of the motor 3 52, and the transmission shaft 1 53 passes through the collecting box 1. A transmission shaft 2 54 is rotatably arranged inside the collecting box 1, and the transmission shaft 2 54 passes through the collecting box 1. The transmission shaft 2 54 and the transmission shaft 1 53 are located at one end outside the collecting box 1 and are sleeved with the same transmission belt 55. The outer surface of the transmission shaft 2 54 and the transmission shaft 1 53 located inside the collecting box 1 are sleeved with the same conveyor belt 56, and the conveyor belt 56 is located below the sieve plate 44. The end of the conveyor belt 56 close to the transmission shaft 2 54 is located above the fruit storage box 2 51.

[0043] When the fruit falls on the surface of the conveyor belt 56, the motor three 52 is started, and the output end of the motor three 52 drives the transmission shaft one 53 to rotate, and the transmission shaft one 53 drives the transmission shaft two 54 to rotate synchronously through the transmission belt 55. At this time, the conveyor belt 56 rotates synchronously with the transmission shaft one 53 and the transmission shaft two 54. The transmission belt 55 improves the stability of the conveyor belt 56 during rotation. The conveyor belt 56 drives the fruit fallen on the surface to move, so that the fruit falls into the interior of the fruit storage box two 51, which is convenient for collecting the fruit, improves the degree of automation of the device, and saves manpower. When the interior of the fruit storage box two 51 is full of fruit, the fruit storage box two 51 is removed from one side of the collection box 1 to facilitate the transportation of the fruit.

[0044] In any of the above technical solutions, the collecting box 1, the moving wheel 2, the picking mechanism 3, the screening mechanism 4, and the conveying mechanism 5 can also be symmetrically arranged into two groups.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fruit picking device for easy screening, comprising a collecting box (1), characterized in that: The collecting box (1) is provided with a screening mechanism (4) inside, the screening mechanism (4) includes a fruit receiving assembly (43), the screening mechanism (4) includes a waste opening (41) opened at one end of the collecting box (1), a collecting opening (42) is opened on one side of the collecting box (1), the fruit receiving assembly (43) includes a second rotating shaft (431) rotatably provided at the top end of the collecting box (1), the second rotating shaft (431) is located at the edge of the collecting opening (42), and the bottom end of the second rotating shaft (431) is provided at the bottom end of the collecting box (1). A fan-shaped plate (432) is fixedly provided, and a plurality of the fan-shaped plates (432) are superimposed and extruded and connected to each other; a buffer bead (434) is fixedly provided on the top of the fan-shaped plate (432); a torsion spring (433) is sleeved on the outer side of the second rotating shaft (431), and the two ends of the torsion spring (433) are fixedly connected to the collection box (1) and the fan-shaped plate (432) respectively; a sieve plate (44) is fixedly provided inside the collection box (1), and a plurality of sieve holes (45) are opened inside the sieve plate (44).

2. The raspberry fruit picking device according to claim 1, characterized in that: The screening mechanism (4) further comprises a cleaning assembly (48), the cleaning assembly (48) comprising a second motor (481), the output end of the second motor (481) being fixedly provided with a first gear (482), a reciprocating screw (483) being rotatably provided inside the collection box (1), one end of the reciprocating screw (483) being fixedly provided with a second gear (484), the second gear (484) being meshed with the first gear (482), a scraper (485) being slidably provided inside the collection box (1), and the bottom end of the scraper (485) being extrusion-connected to the sieve plate (44), the scraper (485) being screwed to the reciprocating screw (483), a fruit drop opening (49) being provided inside one end of the sieve plate (44) near the waste opening (41), and a fruit storage box (410) being detachably provided at one end of the collection box (1) near the waste opening (41).

3. The raspberry fruit picking device according to claim 2, characterized in that: A conveying mechanism (5) is provided inside the collecting box (1), and the conveying mechanism (5) includes a second fruit storage box (51) detachably provided at one end of the collecting box (1) away from the waste opening (41), a third motor (52) is fixedly provided at one side of the collecting box (1) away from the fan-shaped plate (432), a first transmission shaft (53) is fixedly provided at the output end of the third motor (52), and the first transmission shaft (53) passes through the collecting box (1), and a second transmission shaft (54) is rotatably provided inside the collecting box (1), and The second transmission shaft (54) passes through the collection box (1), and the second transmission shaft (54) and the first transmission shaft (53) are sleeved with a same transmission belt (55) at one end outside the collection box (1). The second transmission shaft (54) and the first transmission shaft (53) are sleeved with a same conveyor belt (56) on the outer surface inside the collection box (1), and the conveyor belt (56) is located below the sieve plate (44), and the end of the conveyor belt (56) close to the second transmission shaft (54) is located above the second fruit storage box (51).

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