A litchi picking device

Abstract

The utility model discloses a litchi picker, including picking pole, one end of picking pole is fixedly connected with connecting column, and the other end is fixed with handle, the top of connecting column is fixed with ball head, the surface rotation of ball head is connected with ball wrist post, the bottom of handle is fixed with fixed column, the surface of fixed column is equipped with two rows of clamping interfaces, and the detachable clamping of card post is formed in the clamping interface, the top of card post is fixed with torsion column, and the surface of card post is connected with steel wire pull line, the steel wire pull line passes through the hole in the inside of picking pole and extends to its top, and is connected with the surface of ball wrist post, and the surface of ball wrist post is connected with the surface of ball wrist post. The device is taken out card post through rotating torsion column, and is put into the corresponding clamping interface of next row, and then fixes card post. In this way, the steel wire pull line connected with the card post can be tightened, the ball wrist post can be rotated to the operation side, the shearing mechanism at the top can be flexibly avoided to block the branches and leaves, and the litchi fruit branches can be approached.

Description

Technical Field

[0001] This utility model belongs to the technical field of harvesters, specifically relating to a lychee harvester. Background Technology

[0002] Lychee fruits have thin skins, are juicy, and are delicate and easily damaged. Furthermore, the trees are tall with dense canopies, posing a significant challenge to harvesting. Traditional methods, relying on manual climbing or using long poles to pull the fruit, are not only inefficient and labor-intensive but also highly susceptible to fruit crushing and branch tearing, severely impacting the fruit's commercial value and the following year's yield. At the same time, working at heights also carries significant safety risks. With rising rural labor costs and increasing demands for fruit quality, fruit farmers urgently need a professional tool that enables high-altitude harvesting, precise cutting, and gentle collection to improve harvesting efficiency, ensure fruit integrity, and reduce operational risks.

[0003] A search revealed a Chinese patent publication number CN208285878U, which discloses a lychee harvester, including a harvesting bucket. The harvesting bucket contains a fixed blade and a movable blade located above the fixed blade. The fixed blade is fixedly installed inside the harvesting bucket, and the movable blade is installed inside the harvesting bucket that can move left and right. The harvesting bucket is provided with an eccentric wheel mechanism for driving the movable blade to move back and forth relative to the fixed blade.

[0004] The aforementioned patent has the following shortcomings: the device uses moving and fixed blades to pick lychees and then catches them with a picking bucket. However, it may require forcibly pulling branches when lychees are covered by many branches and leaves, causing damage to the tree and shaking the fruit off. This results in the device having low practicality.

[0005] To address this, a litchi harvester is proposed, which, through its ball head and ball wrist column structure, enables it to swing back and forth and left and right, allowing its cutting mechanism to precisely approach the fruit branches for cutting, thus avoiding pulling on the fruit trees. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a ball head and ball wrist column structure that enables it to swing back and forth and left and right, so as to accurately pick lychees without the user having to find a place to pick them accurately.

[0007] To address one or more of the above-mentioned defects or improvement needs in the existing technology, this utility model provides a lychee harvester, including a harvesting rod, one end of which is fixedly connected to a connecting post, and the other end of which is fixedly connected to a handle; a ball head is fixedly installed on the top of the connecting post, and a ball joint is rotatably connected to the surface of the ball head; a fixing post is fixedly installed on the bottom of the handle, and the surface of the fixing post has two rows of locking interfaces, in which locking posts are detachably locked; a torsion post is fixedly installed on the top of the locking post, and a steel wire is locked to the surface of the locking post; the steel wire passes through a hole inside the harvesting rod and extends to its top, locking with the surface of the ball joint.

[0008] In some embodiments, a first fixing plate and a second fixing plate are fixedly installed on the top of the ball joint post by bolts, a cylinder is provided between the first fixing plate and the second fixing plate, a push rod is fixedly connected to the end of the cylinder, and a push plate is fixedly installed at the end of the push rod.

[0009] In some embodiments, a fixing block and a fixing frame are fixedly installed on the side of the first fixing plate. The push rod passes through the hole in the middle of the fixing block and extends to the top of the first fixing plate. The interior of the fixing frame is rotatably connected to two scissor handles via two rotating shafts. Each scissor handle has a sliding track on its surface. A sliding column is slidably connected in each sliding track. One end of the sliding column is fixedly connected to the surface of the push plate.

[0010] In some embodiments, a blade is fixedly mounted on each of the corresponding surfaces of the two scissor handles.

[0011] In some embodiments, the side of the push plate away from the sliding column is rotatably connected to two first connecting rods via a rotating shaft, and the end of each first connecting rod is rotatably connected to a clamping plate via a rotating shaft; the middle part of each clamping plate is rotatably connected to the surface of the second fixing plate via a rotating shaft.

[0012] In some embodiments, a clamping block is fixedly installed on each of the corresponding surfaces of the two clamping plates.

[0013] In some embodiments, a start switch is fixedly mounted on the surface of the picking rod, and the start switch is located on the top of the handle.

[0014] In some embodiments, a charging port is fixedly installed at the bottom of the fixed column, and a charging cover is rotatably connected to the surface of the charging port via a hinge.

[0015] In summary, the technical solutions conceived by this invention have the following beneficial effects compared with the prior art:

[0016] 1. This utility model discloses a lychee harvester. The device's locking pin is engaged in the locking interface located closer to the handle. The user can remove the locking pin by rotating the torsion pin, insert it into the corresponding locking interface in the next row, and then rotate the torsion pin to fix the pin. This tightens the steel wire connecting the locking pin, causing the ball joint to rotate towards the operating side and taut the steel wire, thus fixing the angle of the ball joint. By operating the ball joint to rotate in different directions, the cutting mechanism at the top can flexibly bypass obstructing branches and leaves, approaching the lychee fruit branches, thereby solving the problem of inconvenient harvesting of lychees obstructed by branches and leaves.

[0017] 2. This utility model discloses a lychee harvester, which uses an actuating cylinder to push a push rod. A fixing block restricts and supports the push rod, preventing it from wobbling. The extension of the push rod drives the push plate and sliding column at its end to move forward. Since the scissor handles are confined within the fixed frame, they can only rotate around the pivot. At this time, the sliding column slides within the sliding track opened on the surface of the scissor handles, converting the linear motion of the push plate into the opposing rotational motion of the two scissor handles, thereby causing the two blades to merge and cut the fruit branch. Activating the cylinder again retracts the push rod, allowing the blades to separate, ready for the next harvest.

[0018] 3. This utility model discloses a lychee harvester. When the cylinder pushes the push rod and push plate forward, it causes the two first connecting rods hinged to the push plate to gradually open. Since the middle part of the clamping plate is connected to the second fixed plate through a rotating shaft, the opening movement of the first connecting rods forces the ends of the two clamping plates and the clamping blocks to close towards each other, thereby clamping the lychee branches. When the cylinder retracts, the mechanism resets, the clamping blocks release, and the harvested lychees can be placed down. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a lychee harvester according to an embodiment of the present utility model;

[0020] Figure 2 This is a bottom view of a lychee harvester according to an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of a lychee harvester according to an embodiment of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the end of a lychee harvester according to an embodiment of the present utility model;

[0023] Figure 5 This is a cross-sectional view of a lychee harvester according to an embodiment of this utility model;

[0024] Figure 6 This is a three-dimensional schematic diagram of the cutting mechanism of a lychee harvester according to an embodiment of this utility model;

[0025] Figure 7This is a three-dimensional schematic diagram of the cutting mechanism of a lychee harvester according to an embodiment of this utility model;

[0026] Figure 8 This is a three-dimensional schematic diagram of the clamping mechanism of a lychee harvester according to an embodiment of this utility model.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1 picking rod, 2 handle, 3 fixing post, 4 clamping plate, 5 clamping block, 6 ball joint post, 7 connecting post, 8 steel wire pull line, 9 start switch, 10 ball head, 11 cylinder, 12 charging port, 13 torsion post, 14 locking post, 15 first fixing plate, 16 push rod, 17 fixing block, 18 fixing frame, 19 push plate, 20 scissor handle, 21 sliding rail, 22 sliding post, 23 second fixing plate, 24 first connecting rod, 25 locking interface. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] Please refer to Figure 1-8 A lychee harvester includes a harvesting rod 1, with a connecting post 7 fixedly connected to one end and a handle 2 fixedly connected to the other end. A ball head 10 is fixedly installed on the top of the connecting post 7, and a ball joint post 6 is rotatably connected to the surface of the ball head 10. A fixing post 3 is fixedly installed on the bottom of the handle 2. Two rows of locking interfaces 25 are provided on the surface of the fixing post 3. A locking post 14 is detachably locked in the locking interface 25. A torsion post 13 is fixedly installed on the top of the locking post 14. A steel wire pull line 8 is locked to the surface of the locking post 14. The steel wire pull line 8 passes through the hole inside the harvesting rod 1 and extends to its top, locking with the surface of the ball joint post 6.

[0031] The locking post 14 of this device is engaged in the locking interface 25 located in the row closest to the handle 2. The user can remove the locking post 14 by rotating the torsion post 13, insert it into the corresponding locking interface 25 in the next row, and then rotate the torsion post 13 to fix the locking post 14. This tightens the steel wire 8 connected to the locking post 14, causing the ball joint 6 to rotate towards the operating side and taut the steel wire 8, thus fixing the angle of the ball joint 6. By operating the ball joint 6 to rotate in different directions, the cutting mechanism at the top can flexibly bypass obstructing branches and leaves, approaching the lychee fruit branches, thereby solving the problem of inconvenient harvesting of lychees obscured by branches and leaves.

[0032] In this embodiment, a first fixing plate 15 and a second fixing plate 23 are fixedly installed on the top of the ball joint post 6 by bolts. A cylinder 11 is provided between the first fixing plate 15 and the second fixing plate 23. A fixing block 17 and a fixing frame 18 are fixedly installed on the side of the first fixing plate 15. A push rod 16 is fixedly connected to the end of the cylinder 11. The push rod 16 passes through the hole in the middle of the fixing block 17 and extends to the top of the first fixing plate 15. A push plate 19 is fixedly installed at the end of the push rod 16. Two scissor handles 20 are rotatably connected inside the fixing frame 18 by two rotating shafts. A blade is fixedly installed on the corresponding surface of each of the two scissor handles 20. A sliding rail 21 is opened on the surface of each scissor handle 20. A sliding column 22 is slidably connected in each sliding rail 21. One end of the sliding column 22 is fixedly connected to the surface of the push plate 19.

[0033] The user activates cylinder 11 to push push rod 16. Fixing block 17 restricts and supports push rod 16, preventing it from wobbling. The extension of push rod 16 causes push plate 19 and sliding column 22 at its end to move forward. Since the shear handle 20 is confined within fixed frame 18, it can only rotate around its axis. At this time, sliding column 22 slides within sliding track 21 on the surface of shear handle 20, converting the linear motion of push plate 19 into the opposing rotational motion of the two shear handles 20, thus causing the two blades to merge and cut the fruit branch. Activating cylinder 11 again retracts push rod 16, separating the blades and preparing for the next harvest.

[0034] In this embodiment, the side of the push plate 19 away from the sliding column 22 is rotatably connected to two first connecting rods 24 via a rotating shaft. The end of each first connecting rod 24 is rotatably connected to a clamping plate 4 via a rotating shaft. The middle part of each clamping plate 4 is rotatably connected to the surface of the second fixing plate 23 via a rotating shaft. A clamping block 5 is fixedly installed on each of the corresponding surfaces of the two clamping plates 4.

[0035] When cylinder 11 pushes push rod 16 and push plate 19 forward, it causes the two first connecting rods 24, which are hinged to push plate 19, to gradually open. Since the middle part of clamping plate 4 is connected to second fixed plate 23 through a pivot, the opening movement of the first connecting rods 24 forces the ends of the two clamping plates 4 and clamping blocks 5 to close towards each other, thereby clamping the lychee branches. When cylinder 11 retracts, the mechanism resets, clamping blocks 5 are released, and the harvested lychees can be placed down.

[0036] In this embodiment, a rechargeable battery is installed inside the picking rod 1 and a start switch 9 is fixedly installed on its surface. The start switch 9 is located at the top of the handle 2. A charging port 12 is fixedly installed at the bottom of the fixing post 3. A charging cover is rotatably connected to the surface of the charging port 12 via a hinge.

[0037] Users can control the opening and closing of cylinder 11 by activating switch 9. The charging port 12 at the bottom of the fixed column 3 can be used to charge the rechargeable battery inside the harvesting rod 1, ensuring the equipment's battery life.

[0038] In this example, when using the device, if it is necessary to avoid branches and leaves to pick lychees, the user can first rotate the torsion post 13 in one direction, take out the clamping post 14, tighten the corresponding steel wire 8, and then put the clamping post 14 into the next row of clamping interfaces 25 and rotate the torsion post 13 to fix it. At this time, the ball joint post 6 will be pulled to that side and fixed. The user aligns the front end of the picking rod 1 with the target lychee, presses the start switch 9, and the cylinder 11 pushes the push rod 16 and the push plate 19 forward. This allows the clamping blocks 5 at the end of the clamping plate 4 to clamp the fruit branch through the two first connecting rods 24. At the same time, the sliding post 22 will drive the blades on the scissor handle 20 to cut the fruit stem. Then, the fruit is placed in the collection basket, and the start switch 9 is pressed again. The cylinder 11 retracts, and the two scissor handles 20 and the two clamping plates 4 will gradually separate, releasing the fruit branch and completing one picking.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A lychee harvester, characterized in that: The device includes a picking pole (1), one end of which is fixedly connected to a connecting post (7), and the other end is fixedly connected to a handle (2); a ball head (10) is fixedly installed on the top of the connecting post (7), and a ball joint post (6) is rotatably connected to the surface of the ball head (10); a fixing post (3) is fixedly installed on the bottom of the handle (2), and two rows of locking interfaces (25) are opened on the surface of the fixing post (3), and a locking post (14) is detachably locked in the locking interface (25); a torsion post (13) is fixedly installed on the top of the locking post (14), and a steel wire pull line (8) is locked on the surface of the locking post (14); the steel wire pull line (8) passes through the hole inside the picking pole (1) and extends to its top, and is locked on the surface of the ball joint post (6).

2. The litchi harvester according to claim 1, characterized in that: The top of the ball joint (6) is fixedly installed with a first fixing plate (15) and a second fixing plate (23) by bolts. A cylinder (11) is provided between the first fixing plate (15) and the second fixing plate (23). A push rod (16) is fixedly connected to the end of the cylinder (11). A push plate (19) is fixedly installed at the end of the push rod (16).

3. A litchi harvester according to claim 2, characterized in that: A fixing block (17) and a fixing frame (18) are fixedly installed on the side of the first fixing plate (15). The push rod (16) passes through the hole in the middle of the fixing block (17) and extends to the top of the first fixing plate (15). The inside of the fixing frame (18) is rotatably connected to two scissor handles (20) through two rotating shafts. Each scissor handle (20) has a sliding track (21) on its surface. A sliding column (22) is slidably connected in each sliding track (21). One end of the sliding column (22) is fixedly connected to the surface of the push plate (19).

4. A litchi harvester according to claim 3, characterized in that: A blade is fixedly mounted on each of the corresponding surfaces of the two scissor handles (20).

5. A litchi harvester according to claim 2, characterized in that: The push plate (19) is rotatably connected to two first connecting rods (24) on the side away from the sliding column (22) via a rotating shaft. The end of each first connecting rod (24) is rotatably connected to a clamping plate (4) via a rotating shaft. The middle part of each clamping plate (4) is rotatably connected to the surface of the second fixing plate (23) via a rotating shaft.

6. A litchi harvester according to claim 5, characterized in that: A clamping block (5) is fixedly installed on each of the corresponding surfaces of the two clamping plates (4).

7. A litchi harvester according to claim 1, characterized in that: A start switch (9) is fixedly installed on the surface of the picking pole (1), and the start switch (9) is located on the top of the handle (2).

8. A litchi harvester according to claim 1, characterized in that: A charging port (12) is fixedly installed at the bottom of the fixed column (3), and a charging cover is rotatably connected to the surface of the charging port (12) via a hinge.

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