Fruit harvesting barrel for hybrid hazelnut trees

Abstract

A fruit harvesting barrel for hybrid hazelnut trees comprises a barrel body, a shovel plate, a swing rod, a composite pull wire and a first torsion spring, the barrel body is of a straight rod cylinder structure, an arc-shaped cutting board is arranged on one side of an upper end opening, a handle frame is installed at the lower end, the shovel plate is an arc-shaped plate body and is hinged to the barrel body corresponding to the arc-shaped cutting board, and a chopping knife is arranged on the front portion of the shovel plate. The front end of the chopping knife is an arc-shaped blade corresponding to the arc-shaped chopping board, the first torsion spring is arranged on a connecting hinged shaft between the shovel plate and the cylinder, the swing rod is hinged to the handle frame, one end of the swing rod is a pulling handle, the other end of the swing rod is a swing arm, and the composite pull wire is composed of a steel wire harness and a pull wire sleeve. According to the hazelnut picking device, the reliability and stability of the picking function can be guaranteed in production and application, the hazelnut picking device has the advantages of being easy to operate, convenient to use and good in controllability, the picking function is achieved in the mode that a chopping cutter is adopted to cut off fruit stems, the picking effect of hazelnut fruits can be improved, and tree health is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hazel tree cultivation tool field, concretely relates to a fruit harvesting cylinder for hybrid hazel tree. BACKGROUND

[0002] Hazel is a shrub or small arbor plant of birch family hazel, is one of the four famous nuts, is rich in nutrition, has high economic value, has been favored for a long time, and has realized artificial seedling propagation and large-scale cultivation and planting through years of hybridization and selection, the hybrid hazel tree cultivated artificially is generally about 2-4 meters high, Treeless The obvious main stem and the clump growth form, the branch transverse interlaced is relatively dense, the fruit is in irregular state, most of them are hidden in the dense branches and leaves, and the picking process needs to be repeated to pick up the branches and then implement the picking operation, the artificial picking operation process is complex, the labor intensity is big, the picking efficiency is low, when the fruit is hidden deep, the arm or even part of the body needs to be inserted into the branch to pick up, the operator is easy to be scratched or tripped by the branch, especially for the fruit hanging in the crown area, the operator needs to climb high to pick up, and there is a safety risk of falling and injury. At present, due to the lack of effective harvesting tools, the harvesting of hazel fruit in production still mainly adopts the manual picking mode, although the utility model patent with the authorization announcement number CN221010881U discloses "a hazel picking device", which can use the hinged plate 2 to combine to form a clamping cover to clamp and pull to pick up hazel, but since the hinged plate 2 has no blade, the fruit is completely picked up by pulling, which is easy to cause damage to the branch, affect the growth and development of the hazel tree, and the external hanging components are more, especially the pull wire 14 and the reset spring 7 are naturally exposed and completely exposed outside the positioning cylinder 1 and the fixed sleeve 10, which is easy to hook and entangle with the branch, so that the hinged plate 2 cannot be fully turned over and the clamping function of the hazel cannot be realized, at the same time, the components of the front end of the device are more, the volume is large and the weight is heavy, on the one hand, it leads to the excessive front balance of the center of gravity, which obviously increases the balance control difficulty in the operation process, on the other hand, the diameter of the end region is large, especially when the hinged plate 2 is opened outward, which further increases, so that the operator's vision is inevitably blocked during use, and it is difficult for the operator to accurately align the upper end of the positioning cylinder 1 with the hazel to be picked, which affects the picking effect, reduces the picking efficiency, reduces the reliability of the function implementation of the technical scheme, and restricts its popularization and application in actual production. Therefore, it is necessary to continue to carry out in-depth research on the harvesting tool of hazel fruit, to ensure to reduce the safety hidden danger, reduce the labor intensity, improve the picking efficiency, improve the stability and reliability of production application, and promote the popularization and use. UTILITY MODEL CONTENT

[0003] The utility model discloses a fruit harvesting cylinder for hybrid hazel tree, is applied to fruit harvesting operation activity of hybrid hazel tree in a complete set, solves prior art problems, reduces the safety hidden danger of fruit picking operation, alleviates the labor intensity, improves the harvesting efficiency.

[0004] A fruit harvesting cylinder for hybrid hazel tree, comprising: a cylinder, a shovel plate, a swing rod, a composite pull wire and a first torsion spring; the cylinder is a straight rod cylinder structure with open ends, the hole diameter of the cylinder can accommodate and smoothly guide and drain mature hazelnut fruits, an arc-shaped chopping block is arranged on one side of the upper end of the cylinder, a handle frame is installed on the outer circumferential surface of the lower end, the handle frame is provided with a handle for holding the cylinder; the shovel plate is an arc-shaped plate body corresponding to the arc of the cylinder, is hingedly connected to the cylinder corresponding to the arc-shaped chopping block, can be hingedly turned about the hinge point relative to the cylinder, so that the shovel plate can be dynamically changed between the basic structure state and the chopping structure state, a chopping knife is arranged on the front part of the shovel plate, the front end of the chopping knife is an arc-shaped blade, the shape of the arc-shaped blade corresponds to the inner circumferential surface of the arc-shaped chopping block; in the basic structure state, the shovel plate is coaxially and limitingly fitted with the cylinder, the upper end of the cylinder is fully opened, so that the picked hazelnut fruits can enter the cylinder from the upper end of the cylinder, in the chopping structure state, the shovel plate is perpendicular to the arc-shaped chopping block, the chopping knife can be in chopping cooperation with the arc-shaped chopping block to cut off the fruit stem of the hazelnut fruit; the first torsion spring device is arranged on the connecting hinge shaft between the shovel plate and the cylinder, two force applying ends are arranged on the shovel plate and the cylinder respectively, so that the initial shape of the shovel plate is limited to the basic structure state; the swing rod is hingedly connected to the handle frame, one end of the hinge connection point is a handle, the other end is a swing arm, and pulling the handle can make the swing rod turn as a whole about the hinge connection point and drive the swing arm to swing; the composite pull wire is composed of a steel wire bundle and a pull wire sleeve, two ends of the steel wire bundle are connected to the pulling rod of the shovel plate and the swing arm of the swing rod respectively, the pull wire sleeve is a non-metal sleeve with high elastic modulus in the axial direction, is wrapped outside the steel wire bundle and is fixedly attached to the outer circumferential surface of the cylinder, when the handle is pulled, the swing arm can swing to pull the steel wire bundle to move axially relative to the pull wire sleeve, so that the shovel plate is turned, and the shovel plate can be changed from the basic structure state to the chopping structure state by fully turning, and the shovel plate can automatically restore to the initial basic structure state under the elastic force of the first torsion spring after the handle is released.

[0005] The aforementioned fruit harvesting cylinder for hybrid hazelnut trees preferably has a second torsion spring installed on the hinge shaft connecting the swing arm and the handle frame. The two force-applying ends of the second torsion spring act on the swing arm and the handle frame respectively, so that the swing arm is limited by the handle frame to maintain its initial spatial state. At the same time, the shovel plate is in the basic structural state, and the wire harness is naturally tensioned to ensure the efficiency of the pulling effect of the wire harness on the shovel plate when the handle is turned.

[0006] In the preferred form of the hybrid hazelnut harvesting cylinder, the connection point between the steel wire bundle and the pull rod on the shovel plate, and the axis of the hinge point between the shovel plate and the cylinder body, are horizontally spaced by a distance ΔD. This allows the steel wire bundle to continuously apply a turning torque to the shovel plate in the cutting structure, thereby ensuring that the cutting blade, which works in conjunction with the arc-shaped anvil, has sufficient cutting force. This enhances the reliability of cutting the fruit stalk and improves the harvesting effect of hazelnuts.

[0007] The aforementioned fruit harvesting tube for hybrid hazelnut trees preferably features a raised anvil on the arc-shaped anvil. The raised anvil has a conical arc surface protruding from the inner circumference of the arc-shaped anvil. The spatial structure of the conical arc surface corresponds to that of the arc-shaped blade. In this cutting configuration, the chopping blade forms a cutting angle α with the conical arc surface. This cutting angle α is less than 90°, allowing the chopping blade to adapt to the arc-shaped anvil under the tension of the wire bundle, preventing vertical jamming and ensuring that the arc-shaped blade can form a cutting fit with the conical arc surface as a whole. This improves the reliability of the chopping blade in cutting the hazelnut fruit stalks.

[0008] The aforementioned fruit harvesting tube for hybrid hazelnut trees preferably has an elastic stop opening on the chopping blade that extends from the end of the curved blade, thereby enhancing the chopping blade's adaptability and elastic deformation capability, improving the chopping and cutting coordination between the chopping blade and the curved cutting board, and increasing the efficiency of cutting the hazelnut fruit stems.

[0009] The beneficial effects of this invention are that it provides a fruit harvesting cylinder for hybrid hazelnut trees. By utilizing the extended length of the cylinder, hazelnuts are harvested, eliminating the need for operators to insert their arms or other body parts into the branches or to climb, thus reducing safety hazards, labor intensity, and improving harvesting efficiency. Furthermore, the harvesting cylinder uses a composite pull wire traction plate fixedly attached to the cylinder body, eliminating the possibility of hazelnut branches entangled with the wire bundle, ensuring the reliability and stability of the harvesting function. Moreover, the overall design is reasonable and efficient. With its compact structure and light weight, and the absence of external components that could cause a sudden increase in the outer diameter of the cylinder, the device ensures good visibility for operators. It is characterized by its simple operation, ease of use, and high controllability. Furthermore, the harvesting function is achieved by using the chopping action between the shovel and the curved anvil, with the curved blade on the chopping knife cutting through the hazelnut stalk. This significantly improves the harvesting efficiency of hazelnuts. In particular, it effectively avoids damage to hazelnut branches, ensuring tree health and making it suitable for widespread application in actual production. Attached Figure Description

[0010] Figure 1 A diagram showing the overall structure of a fruit harvesting tube for hybrid hazelnut trees with a shovel plate in its basic structural state.

[0011] Figure 2 Main view of the shovel cutting structure.

[0012] Figure 3 Side view of the shovel cutting structure.

[0013] Figure 4 Top view of the shovel cutting structure.

[0014] Figure 5 This is a structural diagram of a pendulum in a traction space.

[0015] Figure 6 for Figure 5 Sectional view along line AA.

[0016] Among them: 1 is the cylinder, 2 is the shovel plate, 3 is the swing rod, 4 is the steel wire harness, 5 is the pull cable sleeve, 6 is the handle bracket, 7 is the first torsion spring, 8 is the second torsion spring, 9 is the positioning clamp, 10 is the hinge pin, 11 is the arc-shaped anvil, 12 is the chopping knife, 13 is the arc-shaped limit stop, 14 is the pull rod, 15 is the limit block, 16 is the positioning cap, 17 is the raised anvil, 18 is the hinge shaft, and 19 is the elastic stop. Detailed Implementation

[0017] Furthermore, the technical solution for which protection is sought in this utility model will be described in detail below with reference to specific embodiments and accompanying drawings.

[0018] A type of fruit harvesting tube for hybrid hazelnut trees, such as Figures 1 to 6As shown, it is composed of a cylinder 1, a shovel plate 2, a swing rod 3, a composite pull line, a handle bracket 6, a first torsion spring 7, a second torsion spring 8, and a positioning sleeve 9; the cylinder 1 is a straight cylindrical rod of equal diameter, and the length can be selected from 1.0 to 2.The cylinder 1 is 2 meters long. Hinges 10 are symmetrically arranged on both radial sides of its upper outer circumference. On one side of each hinge pin 10, the cylinder 1 extends axially upwards to form an arc-shaped anvil 11. A raised anvil platform 17 with a conical arc surface is provided on the inner arc surface of the arc-shaped anvil 11. A spatula 2 is balanced and hinged to the two hinge pins 10. The spatula 2 can rotate 90° relative to the cylinder 1 between its basic structural state and its chopping structural state, with the hinge pins 10 as the axis. A handle bracket 6 is installed on the lower outer circumference of the cylinder 1. The spatula 2 is a semi-circular plate with a chopping blade 12 at the front. The front end of the chopping blade 12 has an arc-shaped cutting edge. The spatial structure of the arc-shaped cutting edge... Corresponding to the conical arc surface on the arc-shaped cutting board 11, the blade body has four elastic cut-off slots 19 opening from the ends of the arc-shaped blades, and a pull rod 14 at the tail. An arc-shaped limiting stop 13 is provided on the blade body. The first torsion spring 7 is respectively mounted on two hinge pins 10, with the force applied to the spatula 2 and the cylinder 1 respectively. The elastic force of the first torsion spring 7 allows the spatula 2 to maintain its basic structural state under normal conditions. In this basic structural state, the spatula 2 is located on the opposite side of the arc-shaped cutting board 11 from the hinge pins 10, and is coaxially fitted and connected to the cylinder 1 by the arc-shaped limiting stop 13. In this state, the spatula 2 is positioned perpendicular to the axis of the arc-shaped anvil 11. The chopping knife 12 engages with the raised anvil 17 through the corresponding engagement of the arc-shaped blade and the conical arc surface. The handle frame 6 has a handle, and the swing arm 3 is hinged to the handle frame 6. One end of the hinge shaft 18 is a lever, the position of which corresponds to the handle. The other end of the hinge shaft 18 is a swing arm, which has an arc-shaped fork structure. A limit block 15 is provided on the arm. The second torsion spring 8 is mounted on the hinge shaft 18, and its force-applying end acts on the swing arm 3 and the handle frame 6, so that the swing arm 3 is limited and held by the limit block 15. In the initial spatial state, the initial spatial state corresponds to the basic structural state of the shovel plate 2. The composite pull cable consists of steel wire bundles 4 and pull cable sleeves 5. The two ends of the two sets of steel wire bundles 4 are respectively connected to the pulling rods 14 on both sides of the shovel plate 2 and the two forks of the swing arm on the swing rod 3. The pull cable sleeves 5 cover the outside of the steel wire bundles 4 and are fixed by the positioning clamps 9, so that the pull cable sleeves 5 are attached to the outer circumference of the cylinder 1. Positioning caps 16 are respectively arranged on the two positioning clamps 9 at the upper and lower ends. The positioning caps 16 can protect and limit the coaxial cooperation between the steel wire bundles 4 and the pull cable sleeves 5 at one end.

[0019] The harvesting of hazelnuts using the hybrid hazelnut tree fruit harvesting cylinder described in this embodiment is carried out as follows: The operator first selects a hybrid hazelnut tree fruit harvesting cylinder of suitable length 1 based on the height of the hazelnut tree, and then determines that the shovel plate 2 on the hybrid hazelnut tree fruit harvesting cylinder is positioned as follows: Figure 1 After establishing the basic structural state as shown, use one hand to hold the handle on the handle frame 6 and lift the fruit harvesting tube for the hybrid hazelnut tree. If necessary, use the other hand to support the tube body 1 to keep it balanced and stable. During harvesting, use the tube body 1 to part the dense branches of the hazelnut tree to find the hazelnuts. After finding and identifying the hazelnut to be harvested, align the tube body 1 with the hazelnut and use the arc-shaped anvil 11 at the end to guide the hazelnut into the upper opening of the tube body 1. Then, the operator uses the hand holding the handle to simultaneously turn the lever on the swing arm 3, causing the swing arm 3 to present a position as shown in the image. Figure 5 and Figure 6 As shown in the pulling space state, the swing arm on the swing rod 3 swings to pull the steel wire bundle 4 axially relative to the pull sleeve 5, pulling the shovel plate 2 to rotate 90°, so that the shovel plate 2 changes to the position shown in the figure. Figures 2 to 4 As shown in the chopping structure, continuously applying force to the handle causes the chopping blade 12 on the spade 2 to engage with the raised anvil 17 on the curved anvil 11, cutting off the stem of the hazelnut. The harvested hazelnut will naturally fall into the inner cavity of the cylinder 1 and be discharged from the lower port. The discharged hazelnut can be directly harvested by the operator. Then, releasing the handle restores the spade 2 to its basic structural state, thus completing the harvesting of one or a group of hazelnuts. During the harvesting process, if the chopping blade 12 fails to completely cut the fruit stem in one go, the operator can gently swing the cylinder 1 slightly while keeping the shovel 2 in the chopping structure state to try to break the incompletely cut fruit stem at the cut. If the fruit stem still cannot be broken, the handle can be temporarily released, and then the cylinder 1 can be rotated at a certain angle along the central axis. After that, the handle can be turned again to start the harvesting operation, and the fruit stem can be easily cut off, thus completing the harvesting of the hazelnut fruit.

Claims

1. A fruit harvesting tube for hybrid hazelnut trees, characterized in that, include: The cylinder (1), shovel plate (2), swing rod (3), composite pull wire, and first torsion spring (7) are included. The cylinder (1) is a straight cylindrical structure with open ends. A partially axially extended arc-shaped anvil plate (11) is provided on one side of the upper end of the cylinder (1), and a handle frame (6) is installed on the lower outer circumference. The handle frame (6) has a handle. The shovel plate (2) is an arc-shaped plate with an arc radius corresponding to that of the cylinder (1). It is hinged to the cylinder (1) in relation to the arc-shaped anvil plate (11). It can be rotated relative to the cylinder (1) with the hinge point as the axis, so that the shovel plate (2) can be rotated. The device can dynamically switch between a basic structural state and a chopping structure state. A chopping knife (12) is provided at the front of the spatula (2). The front edge of the chopping knife (12) is an arc-shaped blade, and the shape of the arc-shaped blade corresponds to the inner circumference of the arc-shaped anvil (11). In the basic structural state, the spatula (2) and the cylinder (1) are coaxially positioned and fitted together, fully opening the upper port of the cylinder (1). In the chopping structure state, the spatula (2) and the arc-shaped anvil (11) are perpendicular to each other, and the chopping knife (12) can be inserted into the arc-shaped anvil (11). The first torsion spring (7) is mounted on the connecting hinge between the shovel plate (2) and the cylinder (1), with two force-applying ends acting on the shovel plate (2) and the cylinder (1) respectively, defining the initial shape of the shovel plate (2) as the basic structural state; the swing arm (3) is hinged to the handle frame (6), with one end of the hinge connection point being a lever and the other end being a swing arm. By turning the lever, the swing arm (3) can be rotated around the hinge connection point as the axis, causing the swing arm to swing; the composite pull wire is composed of a steel wire bundle (4) and a pull wire sleeve (5). The two ends of the wire bundle (4) are respectively connected to the pull rod (14) of the shovel plate (2) and the swing arm of the swing rod (3). The pull sleeve (5) is a non-metallic sleeve with a high elastic modulus in the axial direction. It is fitted to cover the outside of the wire bundle (4) and attached to the outer circumference of the cylinder (1). When the lever is turned, the swing arm can swing and pull the wire bundle (4) to make it move axially relative to the pull sleeve (5), pulling the shovel plate (2) to flip. The full flipping of the shovel plate (2) can change it from the basic structural state to the chopping structure state.

2. The fruit harvesting tube for hybrid hazelnut trees as described in claim 1, characterized in that: A second torsion spring (8) is installed on the hinge shaft connecting the swing arm (3) and the handle frame (6). The two force-applying ends of the second torsion spring (8) act on the swing arm (3) and the handle frame (6) respectively, so that the swing arm (3) is limited by the handle frame (6) to maintain the initial spatial state. At the same time, the shovel plate (2) is in the basic structural state, and the steel wire bundle (4) is naturally tensioned.

3. The fruit harvesting tube for hybrid hazelnut trees as described in claim 2, characterized in that: In the cutting structure state, the connection point between the wire bundle (4) and the pull rod (14) on the shovel plate (2) and the axis of the hinge point between the shovel plate (2) and the cylinder (1) has a horizontal distance △D.

4. A fruit harvesting tube for hybrid hazelnut trees as described in any one of claims 1 to 3, characterized in that: A raised anvil (17) is provided on the arc-shaped anvil (11). The raised anvil (17) has a conical arc surface that protrudes from the inner circumference of the arc-shaped anvil (11). The conical arc surface corresponds to the spatial structure of the arc-shaped blade. The chopping knife (12) forms a chopping angle α with the conical arc surface in the chopping structure state. The chopping angle α is less than 90°.

5. The fruit harvesting tube for hybrid hazelnut trees as described in claim 4, characterized in that: An elastic stop (19) is provided on the chopping knife (12) that opens from the end of the arc-shaped blade.

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