Picking device for forestry

By designing a forestry harvester, which combines a support rod, a harvesting hand gripper, and a fruit conveying cloth, the problem of difficult fruit harvesting at heights is solved, achieving efficient fruit transport and convenient operation.

CN223786655UActive Publication Date: 2026-01-13HEBEI AGRICULTURAL UNIV.
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Patent Information

Application Number
CN202520147996.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-13
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In existing technologies, harvesting fruits from high places is difficult and inefficient, and they cannot be quickly transported to the ground, resulting in low harvesting efficiency.

Method used

Design a forestry harvester, including a support rod, a harvesting gripper, a flexible fruit receiving tube, and a fruit conveying cloth tube. The harvesting gripper is installed at the top of the support rod, and a driver is installed at the bottom. The driver drives the harvesting gripper to move, and the flexible fruit receiving tube and the fruit conveying cloth tube transport the fruit to the ground.

Benefits of technology

It enables convenient harvesting of fruits from high places and rapid transport to the ground, improving harvesting efficiency and reducing operational difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forestry picker which comprises a supporting rod, a picking gripper is fixedly installed on the top of the supporting rod, a driver is installed on the supporting rod, and the driver drives the picking gripper to move to pick fruits. A flexible fruit receiving pipe is installed at the bottom of the picking gripper, a fruit conveying cloth cylinder is installed at the lower end of the flexible fruit receiving pipe, and fruits picked by the picking gripper are conveyed to the ground through the flexible fruit receiving pipe and the fruit conveying cloth cylinder. The picker can pick fruits at high positions, is simple and convenient to operate, can quickly convey the picked fruits to the ground, improves the picking efficiency, and is low in manufacturing cost.
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Description

Technical Field

[0001] This utility model relates to the field of forestry harvesting equipment technology, specifically to a forestry harvester. Background Technology

[0002] Forestry refers to the production sector that protects the ecological environment and maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of trees to play a protective role. It is an important part of the national economy. Currently, in some areas, fruit trees can be planted on barren mountains, which can both protect the environment and prevent soil erosion, and increase farmers' income. In fruit trees, some grow lower and some grow higher. When harvesting the fruit from the lower-growing trees, they can be twisted off manually or with the help of tools. The fruit growing higher is more difficult to harvest because the trunks above are thinner and cannot be climbed. Moreover, the harvested fruit cannot be quickly transported to the ground, resulting in low harvesting efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a forestry harvester that can harvest fruits from high places. It is simple and convenient to operate, and can quickly transport the harvested fruits to the ground, thereby improving harvesting efficiency and having low manufacturing costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A forestry harvester includes a support rod, a harvesting gripper fixedly installed at the top of the support rod, a driver installed on the support rod, the driver driving the harvesting gripper to harvest fruit; a flexible fruit receiving tube installed at the bottom of the harvesting gripper, and a fruit conveying cloth tube installed at the lower end of the flexible fruit receiving tube, the fruit harvested by the harvesting gripper is conveyed to the ground through the flexible fruit receiving tube and the fruit conveying cloth tube.

[0006] Preferably, the support rod is a bamboo-joint telescopic rod.

[0007] Preferably, the picking gripper includes a base support installed on the top of the support rod, three connectors fixedly installed on the base support, a parallel four-bar assembly hinged to the connectors, a return spring connected between the parallel four-bar assembly and the base support, a first adapter rod hinged to one end of the top of the parallel four-bar assembly, a second adapter rod hinged to the other end of the top of the parallel four-bar assembly, and an arc-shaped claw hinged to the first adapter rod and the second adapter rod.

[0008] Preferably, the parallel four-bar assembly includes a first link hinged to the connector, a second link hinged to one end of the first link, a third link hinged to the other end of the first link, and an L-shaped link hinged to the ends of the second and third links; one end of the return spring is connected to the hinge axis between the first and second links; the first adapter rod is hinged to the top end of the L-shaped link; and the second adapter rod is hinged to the hinge axis between the first and third links.

[0009] Preferably, a rubber pad layer is provided on the inner surface of the arc-shaped claw.

[0010] Preferably, the driver is fixedly mounted on the bottom of the support rod.

[0011] Preferably, the driver includes an electric push rod fixedly installed at the bottom of the support rod, a drive plate fixedly installed on the output end of the electric push rod, and three drive ropes installed on the drive plate. The other ends of the three drive ropes are respectively connected to a first connecting rod, and the first connecting rod is driven to swing around the hinge point by the drive ropes.

[0012] Preferably, a handle is provided on the support rod.

[0013] Preferably, a button for controlling the movement of the electric push rod is provided on the support rod.

[0014] In this invention, the picking gripper is positioned at the top of the support rod, enabling the harvesting of fruits high on the treetops from the ground, thus improving harvesting convenience. The flexible fruit-receiving tube and fruit-conveying cloth tube transport the harvested fruits directly downwards, increasing harvesting efficiency. Both the flexible fruit-receiving tube and the fruit-conveying cloth tube are made of flexible materials, allowing the operator to unload the falling speed by tilting or bending the cloth tube in the opposite direction, preventing damage to the fruits. The actuator is located at the bottom of the support rod to prevent excessive weight at the top from affecting the harvesting operation. The support rod is a bamboo-joint telescopic rod for easy storage, and the rubber padding on the inside of the curved gripper facilitates fruit gripping and prevents damage during harvesting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an enlarged schematic diagram of the picking gripper structure of this utility model;

[0017] Figure 3 This is a partial structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the driver structure of this utility model;

[0019] In the diagram: 1. Support rod; 2. Harvesting gripper; 3. Driver; 4. Handle; 5. Flexible fruit receiving tube; 6. Fruit conveying cloth tube; 20. Foundation support; 21. Connector; 22. Parallel four-bar assembly; 23. Return spring; 24. First adapter rod; 25. Second adapter rod; 26. Arc-shaped claw; 27. Rubber pad; 30. Electric push rod; 31. Drive plate; 32. Drive rope; 33. Button; 220. First connecting rod; 221. Second connecting rod; 222. Third connecting rod; 223. L-shaped connecting rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1 to 4 The illustrated forestry harvester includes a support rod 1. In this embodiment, the support rod 1 is a bamboo-joint telescopic rod for easy storage when not in use. A handle 4 is provided on the lower end of the support rod 1. The operator operates the harvester to perform harvesting operations by using the handle 4.

[0022] A harvesting gripper 2 is fixedly installed on the top of the support rod 1 using fasteners. The harvesting gripper 2 includes a base support 20 installed on the top of the support rod 1, three connectors 21 fixedly installed on the base support 20, a parallel four-bar assembly 22 hinged to the connectors 21, a return spring 23 connecting the parallel four-bar assembly 22 and the base support 20, a first adapter rod 24 hinged to one end of the top of the parallel four-bar assembly 22, a second adapter rod 25 hinged to the other end of the top of the parallel four-bar assembly 22, and an arc-shaped claw 26 hinged to the first adapter rod 24 and the second adapter rod 25. A rubber pad 27 is fixedly provided on the inner surface of the arc-shaped claw 26. The rubber pad 27 is in contact with the surface of the fruit to prevent damage to the fruit during harvesting.

[0023] The parallel four-bar assembly 22 includes a first link 220 hinged to a connector 21, a second link 221 hinged to one end of the first link 220, a third link 222 hinged to the other end of the first link 220, and an L-shaped link 223 hinged to the top ends of the second link 221 and the third link 222. One end of a return spring 23 is connected to the hinge axis between the first link 220 and the second link 221. A first adapter rod 24 is hinged to the top end of the L-shaped link 223, and one end of a second adapter rod 25 is hinged to the hinge axis between the first link 220 and the third link 222.

[0024] A driver 3 is installed on the support rod 1, and the driver 3 drives the picking hand 2 to pick the fruit. In this embodiment, the driver 3 is fixedly installed at the bottom of the support rod 1. The driver 3 includes an electric push rod 30 fixedly installed at the bottom of the support rod 1, a drive plate 31 fixedly installed on the output end of the electric push rod 30, and three drive ropes 32 installed on the drive plate 31. The other ends of the three drive ropes 32 are respectively connected to a first connecting rod 220, and the first connecting rod 220 is driven to swing around the hinge point by the drive ropes 32. A button 33 is provided on the support rod 1 to control the action of the electric push rod 30. The button 33 controls the extension or retraction of the electric push rod 30. Of course, the button 33 can also be installed on the handle 4, and a power supply for powering the electric push rod 30 is provided on the ground, which can also be carried by the operator.

[0025] A flexible fruit receiving tube 5 is installed at the bottom of the picking grabber 2. The flexible fruit receiving tube 5 is connected to the base support 20 by fasteners. A fruit conveying cloth tube 6 is installed at the lower end of the flexible fruit receiving tube 5. The fruit picked by the picking grabber 2 is conveyed to the designated position on the ground through the flexible fruit receiving tube 5 and the fruit conveying cloth tube 6.

[0026] Under normal conditions, the three arc-shaped claws 26 are in the open state under the action of the return spring 23. The drive rope 32 pulls one end of the first connecting rod 220, causing the first connecting rod 220 to rotate around the hinge axis with the base support 20. The swing of the parallel four-bar assembly 22 causes the first transition rod 24 and the second transition rod 25 to swing, thereby causing the arc-shaped claws 26 to retract inward and downward to clamp the fruit. The operator then pulls the support rod 1 to pick the fruit. The picked fruit is transported to a designated position on the ground through the flexible fruit receiving tube 5 and the fruit conveying cloth tube 6. Then, other fruits are picked, realizing continuous picking operations.

[0027] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. A forestry harvester, comprising a support rod, characterized in that: A harvesting gripper is fixedly installed at the top of the support rod, and a driver is installed on the support rod. The driver drives the harvesting gripper to harvest fruit. A flexible fruit receiving tube is installed at the bottom of the harvesting gripper, and a fruit conveying cloth tube is installed at the lower end of the flexible fruit receiving tube. The fruit harvested by the harvesting gripper is conveyed to the ground through the flexible fruit receiving tube and the fruit conveying cloth tube. The harvesting gripper includes a base support installed at the top of the support rod, three connectors fixedly installed on the base support, a parallel four-bar assembly hinged to the connectors, a return spring connecting the parallel four-bar assembly and the base support, a first adapter rod hinged to one end of the top of the parallel four-bar assembly, a second adapter rod hinged to the other end of the top of the parallel four-bar assembly, and an arc-shaped claw hinged to the first adapter rod and the second adapter rod.

2. The forestry harvester according to claim 1, characterized in that: The support rod is a bamboo-joint telescopic rod.

3. The forestry harvester according to claim 2, characterized in that: The parallel four-bar assembly includes a first link hinged to the connector, a second link hinged to one end of the first link, a third link hinged to the other end of the first link, and an L-shaped link hinged to the ends of the second and third links; one end of the return spring is connected to the hinge axis between the first and second links; the first adapter rod is hinged to the top end of the L-shaped link; and the second adapter rod is hinged to the hinge axis between the first and third links.

4. The forestry harvester according to claim 3, characterized in that: A rubber pad layer is provided on the inner surface of the arc-shaped claw.

5. The forestry harvester according to claim 3 or 4, characterized in that: The driver is fixedly mounted on the bottom of the support rod.

6. The forestry harvester according to claim 5, characterized in that: The actuator includes an electric push rod fixedly installed at the bottom of the support rod, a drive plate fixedly installed on the output end of the electric push rod, and three drive ropes installed on the drive plate. The other ends of the three drive ropes are respectively connected to a first connecting rod, and the first connecting rod is driven to swing around the hinge point by the drive ropes.

7. The forestry harvester according to claim 1, characterized in that: A handle is provided on the support rod.

8. The forestry harvester according to claim 6, characterized in that: A button for controlling the movement of the electric push rod is provided on the support rod.