A hand-held breadfruit picking device

Abstract

The utility model discloses a handheld breadfruit picking device relates to agricultural picking tool technical field, including holding handle, support, fruit collecting mechanism, cutting knife, and holding handle includes main stem and telescopic link, and telescopic link slide is inserted in the main stem, and telescopic link and main stem can adjust relative position and relative fixed, thereby adjusting the length of whole, support is fixed in the top of telescopic link, and support is equipped with two connection point positions, and fruit collecting mechanism is hinged with two connection point positions, and through the angle adjustment makes breadfruit enter fruit collecting mechanism, after the fruit collecting mechanism accomodates breadfruit, the cutting knife of fruit collecting mechanism upper edge cuts the fruit stem, and breadfruit falls into the fruit collecting mechanism, through the total length of adjusting holding handle and realizes different height adaptation, through the arc cutting knife and realizes accurate cutting, and the operation is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of agricultural harvesting tools, and more specifically to a handheld breadfruit harvesting device. Background Technology

[0002] Breadfruit is an important economic crop in tropical and subtropical regions. Its fruit mostly grows in the middle and upper part of the trunk. The fruit stalk is usually 1-3 cm in diameter and has a tough texture, which puts high demands on the adaptability of harvesting tools and the precision of cutting.

[0003] However, current breadfruit harvesting tools on the market still have many shortcomings and cannot meet actual harvesting needs. Traditional breadfruit harvesting tools are mostly of fixed length and cannot be flexibly adjusted according to the 3-10 m growth height of breadfruit trees. When harvesting fruits at higher elevations, ladders or climbing the trunk are required, which not only significantly increases the labor intensity of operators but also poses a safety hazard of falling. Furthermore, they cannot be adapted to breadfruit trees of different ages and growth heights, resulting in poor versatility.

[0004] In terms of cutting operations, the existing tools mostly use straight blades or ordinary curved blades for cutting, lacking an effective angle fixing structure. During the harvesting process, the cutting is easily deviated due to hand tremors or branches blocking the way. This may not only scratch the fruit flesh and damage the fruit, affecting its commercial value, but may also accidentally cut surrounding branches, which will have an adverse effect on the subsequent growth of the fruit tree. In particular, it is not suitable for the dual requirements of fruit integrity and fruit tree protection in large-scale planting.

[0005] In summary, current breadfruit harvesting tools have significant shortcomings in terms of high adaptability, precise cutting, and stable operation, making it difficult to meet the high-efficiency harvesting needs of large-scale breadfruit cultivation. There is an urgent need for a dedicated harvesting device that is simple in structure, economical, durable, and functionally adaptable to solve these problems. Utility Model Content

[0006] The core of this utility model is to provide a handheld breadfruit harvesting device, which can achieve different height adaptations by adjusting the total length of the grip rod, and achieves precise cutting through the arc-shaped cutting blade. The operation is stable and reliable. The specific solution is as follows:

[0007] A handheld breadfruit harvesting device includes:

[0008] The grip bar includes a main rod and a telescopic rod, wherein the telescopic rod is slidably inserted into the main rod, and the telescopic rod and the main rod are adjustable in relative position and relatively fixed.

[0009] A bracket is fixed to the top of the telescopic rod, and the bracket has two connection points;

[0010] A fruit-collecting mechanism is hinged to the two connection points, and the fruit-collecting mechanism is used to hold breadfruit.

[0011] A cutting blade is fixed to the upper edge of the fruit-collecting mechanism. The blade of the cutting blade is arc-shaped and is positioned towards the center of the fruit-collecting mechanism.

[0012] Optionally, the fruit-collecting mechanism includes a cylindrical wall and a bottom plate, with two shafts disposed opposite each other on the top of the outer surface of the cylindrical wall;

[0013] The bracket has two connection points, which are collars; the shaft is hinged to the collars.

[0014] Optionally, a positioning rod and a threaded rod are provided on the upper edge of the cylinder wall;

[0015] The cutting blade has a positioning hole and a connecting hole. The positioning rod is inserted into the positioning hole for positioning. The threaded rod is inserted into the connecting hole for positioning. The threaded rod is used to connect and fix a nut to secure the cutting blade.

[0016] Optionally, at least two threaded rods are provided, and the positioning rod is disposed between the threaded rods.

[0017] Optionally, the fruit-collecting mechanism is made of metal, and the cylinder wall and the bottom plate are provided with a number of ventilation holes.

[0018] Optionally, the cutting blade is symmetrical about the perpendicular bisector of the shaft.

[0019] Optionally, the cutting blade is a single-edged blade, and the bottom surface of the cutting blade is a plane.

[0020] Optionally, a damping component is provided between the collar and the shaft.

[0021] Optionally, a threaded seat is provided on the top of the side wall of the main rod. The threaded seat is used for threaded assembly of the threaded pressure rod, and the threaded pressure rod is used to press against the telescopic rod to achieve fixation.

[0022] Optionally, a handle is provided at the bottom of the side wall of the main rod with a radially enlarged shape, and the outer surface of the handle is provided with anti-slip texture.

[0023] This utility model provides a handheld breadfruit harvesting device. The grip includes a main rod and a telescopic rod, with the telescopic rod slidably inserted into the main rod. The telescopic rod and the main rod can be adjusted and fixed relative to each other, thereby adjusting the overall length. A bracket is fixed to the top of the telescopic rod and has two connection points. The fruit-collecting mechanism is hinged to the two connection points, and the breadfruit enters the fruit-collecting mechanism by adjusting the angle. After the fruit-collecting mechanism collects the breadfruit, a cutting blade on the upper edge of the fruit-collecting mechanism cuts the fruit stem, and the breadfruit falls into the fruit-collecting mechanism. Different heights can be adapted by adjusting the total length of the grip, and precise cutting is achieved through the arc-shaped cutting blade. The operation is stable and reliable. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the handheld breadfruit picking device of this utility model;

[0026] Figure 2 A schematic cross-sectional view of the grip rod and bracket;

[0027] Figure 3 This is a schematic diagram of the fruit-collecting mechanism and the cutting blade.

[0028] The image includes:

[0029] Grip lever 10; Main rod 110; Hand grip 111; Telescopic rod 120; Threaded seat 130; Threaded pressure rod 140; Operating handle 150;

[0030] 20 brackets; 210 collars;

[0031] Fruit collecting mechanism 30; ventilation hole 301; cylinder wall 310; bottom plate 320; shaft 330; positioning rod 340; threaded rod 350; fixing nut 360;

[0032] Cutting blade 40; positioning hole 410; connecting hole 420. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the handheld breadfruit picking device of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] This utility model provides a handheld breadfruit harvesting device, combined with Figure 1 As shown, it includes structures such as a gripping rod 10, a bracket 20, a fruit-collecting mechanism 30, and a cutting blade 40.

[0035] The grip 10 is a slender rod-shaped structure used for hand gripping, serving as an extension of the harvester's arm. The grip 10 includes a main rod 110 and a telescopic rod 120, with the telescopic rod 120 slidably inserted into the main rod 110. The telescopic rod 120 and the main rod 110 can be adjusted in relative position and fixed relative to each other.

[0036] The main rod 110 has a hollowed-out inner cavity. The telescopic rod 120 can be hollow or solid. The telescopic rod 120 and the main rod 110 are coaxially arranged and inserted into the inner cavity of the main rod 110. There is a partial overlap between the main rod 110 and the telescopic rod 120. The main rod 110 is located at the lower part of the entire grip rod 10, and the telescopic rod 120 is located at the upper part of the entire grip rod 10. The telescopic rod 120 can extend from the top of the main rod 110.

[0037] The adjustable length range of the telescopic rod 120 is 1.5-3 m. Both the main rod 110 and the extension section of the telescopic rod 120 are made of aluminum alloy. The inner diameter of the main rod 110 is 0.3-0.5 mm larger than the outer diameter of the extension section of the telescopic rod 120 to ensure that the extension section can slide smoothly within the main rod 110.

[0038] Anti-slip and wear-resistant stickers can be attached to the outside of the main rod 110. The wear-resistant stickers are made of PVC material with a thickness of 0.1-0.2 mm and have a textured surface. When the operator needs to use both hands to assist in adjusting the telescopic rod 120, it can increase the friction between the hand and the main rod 110, prevent the device from slipping, and improve operational safety.

[0039] The telescopic pole 120 can be used on breadfruit trees with a height of 3-10 m. Without the need for ladders or climbing the trunk, operators can pick breadfruit from a height while standing on the ground. Compared with traditional fixed-length tools, labor intensity is reduced by 40%-60% and picking efficiency is increased by 30%-50%.

[0040] The bracket 20 is fixed to the top of the telescopic rod 120, and the bracket 20 has two connection points. The middle position of the bracket 20 is fixed to the top of the telescopic rod 120. The bracket 20 has an axisymmetric structure, and the top of the telescopic rod 120 is connected to the axis of symmetry of the bracket 20. Figure 2 In the structure shown, the support 20 is an arc-shaped rod structure, and connection points are set at both ends of the support 20.

[0041] The fruit collecting mechanism 30 is hinged to two connection points, and the bracket 20 forms two support positions for the fruit collecting mechanism 30. The fruit collecting mechanism 30 has a groove-shaped structure and is used to hold breadfruit. When breadfruit falls, it falls into the fruit collecting mechanism 30.

[0042] The cutting blade 40 is fixed to the upper edge of the fruit collecting mechanism 30. The blade of the cutting blade 40 is arc-shaped and protrudes from the inner surface of the side wall of the fruit collecting mechanism 30, with the blade facing the center of the fruit collecting mechanism 30. The cutting blade 40 is used to cut the stem of the breadfruit. After the stem is cut off, the breadfruit falls into the fruit collecting mechanism 30.

[0043] The inner edge of the cutting blade 40 is curved, while the outer edge of the cutting blade 40 is not limited in shape; it can be a polygonal broken line structure or also set as a curved line.

[0044] The depth of the fruit collecting mechanism 30 should be greater than the height of the breadfruit. When the breadfruit enters the fruit collecting mechanism 30, the cutting blade 40 should be positioned directly opposite the stem of the breadfruit. The internal volume of the fruit collecting mechanism 30 should be greater than the volume of a single breadfruit, allowing it to hold one breadfruit at a time.

[0045] Using the handheld breadfruit harvesting device provided by this utility model, the telescopic rod 120 is adjusted to a suitable extension size according to the height of the breadfruit. The harvester holds the main rod 110 and places the harvesting mechanism 30 over the breadfruit, allowing the breadfruit to enter the groove of the harvesting mechanism 30. The harvester applies a pulling force, and the cutting blade 40 cuts the fruit stem, separating the breadfruit from the stem and allowing it to fall into the harvesting mechanism 30. After the harvester removes the breadfruit, the next harvesting operation can begin.

[0046] Combination Figure 3 As shown, the fruit collecting mechanism 30 of this utility model includes a cylindrical wall 310 and a bottom plate 320. The cylindrical wall 310 is cylindrical and has no sharp protruding edges on its surface, which avoids damage to the breadfruit and makes it less prone to accumulating stains.

[0047] Two shafts 330 are arranged opposite each other on the top of the outer surface of the cylinder wall 310, and the two shafts 330 are coaxial and collinear. The shafts 330 are columnar in shape, and their axes are perpendicular to the axis of the cylinder wall 310. A tapered stepped platform is provided in the middle of the shafts 330 to cooperate with the fitting collar 210.

[0048] The shaft 330 and the fruit collecting mechanism 30 are fixedly connected by welding. The weld is provided with a triangular reinforcing rib with a thickness of 2-3 mm to enhance the structural strength. In actual tests, when the cutting blade 40 cuts the fruit stem with a diameter of 3 cm, there is no obvious deformation at the weld, and it can withstand a cutting force of 50-80N.

[0049] The bracket 20 has two connection points, which are collars 210. The collar 210 is a circular structure. The collar 210 is coaxially arranged with the shaft 330. The shaft 330 is hinged to the stepped platform of the collar 210. The larger outer diameter of the shaft 330 can axially limit the collar 210.

[0050] Through the cooperation of the collar 210 and the shaft 330, the rotation adjustment of the fruit collecting mechanism 30 can be realized, and the opening angle of the fruit collecting mechanism 30 can be adjusted and changed, so as to match and fit with breadfruits facing different directions.

[0051] The diameter of the shaft 330 is 3-4 cm, and the clearance between the shaft 330 and the bracket 20 is 0.1-0.2 mm to ensure that the shaft 330 is stably inserted into the fixed bracket 20.

[0052] Combination Figure 3As shown, a positioning rod 340 and a threaded rod 350 are provided on the upper edge of the cylinder wall 310. The positioning rod 340 and the threaded rod 350 protrude from the upper edge of the cylinder wall 310, and the axis of the positioning rod 340 and the axis of the threaded rod 350 are parallel to the axis of the cylinder wall 310.

[0053] The positioning rod 340 has a cylindrical structure with a diameter of 8-10 mm. The surface of the positioning rod 340 is provided with scale lines at intervals along its length, which facilitates precise adjustment of the positioning position of the positioning rod 340 on the cutting blade 40.

[0054] The cutting blade 40 has positioning holes 410 and connecting holes 420. The positioning rod 340 is inserted and positioned in conjunction with the positioning holes 410. Specifically, there can be more than one positioning hole 410 and more than one connecting hole 420. The number of positioning holes 410 can be equal to or greater than the number of positioning rods 340, and the number of connecting holes 420 can be equal to or greater than the number of threaded rods 350.

[0055] The threaded rod 350 and the connecting hole 420 are fitted together for positioning; the threaded rod 350 is used to thread a fixing nut 360 to secure the cutting blade 40. The fixing nut 360 can be tightened or loosened by hand without the aid of other tools. When the fixing nut 360 is tightened, pressure is applied to the cutting blade 40, causing the cutting blade 40 to fit tightly against the upper edge of the cylinder wall 310. When the sharpness of the cutting blade 40 decreases, the cutting blade 40 can be replaced individually.

[0056] Combination Figure 3 As shown, at least two threaded rods 350 are provided, and positioning rods 340 are provided between the threaded rods 350. Two fixing nuts 360 form a more thorough and even pressure on the cutting blade 40, preventing the cutting blade 40 from tilting or loosening. When picking fruit stalks that grow at an angle (20° with the vertical direction), the cutting accuracy is improved by more than 60% compared to devices without a positioning structure.

[0057] Specifically, the fruit-collecting mechanism 30 of this utility model is made of metal materials, such as stainless steel cylindrical plate for the cylinder wall 310 and flat stainless steel plate for the bottom plate 320. The cylinder wall 310 and the bottom plate 320 are welded and fixed to each other.

[0058] Several ventilation holes 301 are provided on the cylinder wall 310 and the bottom plate 320. The ventilation holes 301 can achieve drainage and ventilation, and prevent the fruit collecting mechanism 30 from rusting and getting moldy. The ventilation holes 301 have a circular structure, the diameter of the ventilation holes 301 is 1-2 cm, and the ventilation holes 301 are evenly distributed on the fruit collecting mechanism 30 of the device. The distance between two adjacent ventilation holes 301 is 3-5 cm.

[0059] When the fruit-collecting mechanism 30 is used in a humid outdoor environment (relative humidity above 70%), the ventilation holes 301 can promote air circulation around the fruit-collecting mechanism 30, prevent metal parts from rusting, and delay the rusting time of parts by 6-12 months compared to devices without ventilation structures.

[0060] Combination Figure 3 As shown, the cutting blade 40 provided by this utility model is symmetrically arranged about the perpendicular line of the shaft 330. The center of the blade of the cutting blade 40 is directly opposite the axis of the cylinder wall 310 and towards the holding rod 10. When the harvester pulls the holding rod 10, the cutting blade 40 can stably cut the fruit stem.

[0061] Specifically, the cutter 40 is a single-edged blade. The bottom surface of the cutter 40 is flat, while the portion above the bottom surface forms a beveled edge. This single-edged design helps maintain the blade's long-term stability. The inner diameter of the cutter 40 is 3-5 cm, suitable for breadfruit stems with a diameter of 1-3 cm. The cutter 40 is made of stainless steel.

[0062] The cutting blade 40 has a thickness of 0.5-1 mm, and its sharpness is sufficient to cut the fruit stem in one go without the need for repeated sawing. This reduces the shaking damage to the fruit caused by the cutting force. Actual tests show that when cutting breadfruit stems with a diameter of 1-3 cm, the success rate of a single cut is over 95%, and the rate of fruit skin scratches is less than 2%.

[0063] A plastic protective sleeve can be optionally installed on the outside of the cutting blade 40. The protective sleeve is detachably connected to the cutting blade 40 via clips. When the device is not in use or during transportation, it can prevent the blade from scratching the operator or being damaged by foreign objects, thus improving safety. The protective sleeve is made of PP material with a thickness of 1-1.5 mm, which has a certain degree of impact resistance and can protect the blade from minor collisions, extending the blade's sharpness retention time. Compared with a ring cutter without a protective sleeve, the blade roll rate is reduced by more than 50%.

[0064] A damping component is provided between the collar 210 and the shaft 330. A certain torque is required to make the fruit collecting mechanism 30 rotate. Under its own weight, the fruit collecting mechanism 30 cannot rotate arbitrarily, which makes it easy for the opening of the fruit collecting mechanism 30 to be aligned with the breadfruit for insertion.

[0065] The damping components can be made of rubber, and the outer surface of the collar 210 is provided with diamond-shaped anti-slip patterns with a depth of 0.5-1 mm. The damping components can be replaced individually; only the damping components need to be replaced after aging.

[0066] Combination Figure 2As shown, a threaded seat 130 is provided on the top of the side wall of the main rod 110 of this utility model. The threaded seat 130 is provided with a threaded hole and is used for threaded assembly of the threaded pressure rod 140. The axis of the threaded pressure rod 140 is perpendicular to the axis of the gripping rod 10. The threaded pressure rod 140 is used to press the telescopic rod 120 to achieve fixation. After the threaded pressure rod 140 is released, the position of the telescopic rod 120 can be changed.

[0067] The threaded seat 130 is welded and fixed to the main rod 110. The thread fit accuracy between the threaded pressure rod 140 and the threaded seat 130 is 6 H / 6 g, ensuring tight thread engagement. After repeated rotations of 500 times, there is still no obvious thread wear, and the locking function is normal.

[0068] The end of the threaded pressure rod 140 is provided with an operating handle 150 for hand turning. The outer surface of the operating handle 150 is made of PP material, with a length of 2-3 cm and a surface with anti-slip grooves of 1-2 mm in width, which makes it easy to grip and rotate. The rotation torque is small, and the operator can complete the adjustment with one hand. The adjustment time is less than 5 seconds. Compared with the knob-type locking structure, the operating efficiency is improved by 40%.

[0069] The bottom of the side wall of the main rod 110 is radially enlarged to provide a handle 111, and the outer surface of the handle 111 is provided with anti-slip texture to prevent slipping when holding.

[0070] The handle 111 has a cylindrical structure and is made of PP material. The surface of the handle 111 has anti-slip grooves, the width of which is 1-2 mm, to facilitate grip and rotation. When the hands are sweaty (surface humidity above 60%), the grip slippage rate is less than 5%, which is 50% higher than that without anti-slip design, improving operation stability.

[0071] The top of the main rod 110 is equipped with a rubber pressure head with a thickness of 2-3 mm and anti-slip protrusions on the surface. When the threaded pressure rod 140 is tightened, the surface of the telescopic rod 120 contacts the rubber pressure head, increasing the friction. After locking, the telescopic rod 120 is tested to withstand an axial tensile force of 30 N, and the extension section does not slip, indicating strong length locking stability.

[0072] This invention is primarily applied to large-scale breadfruit cultivation. For cutting the fruit stalks of breadfruit trees at different heights, it allows for flexible adjustment of the operating height and stable control of the cutting angle, reducing damage to fruit and branches during harvesting. It also improves the stability of handheld operation and the durability of components, adapting to the specific needs of breadfruit harvesting. While specifically designed for breadfruit, it can also be used for harvesting tropical and subtropical fruits such as jackfruit and durian with stalk diameters of 1-3 cm, demonstrating its versatility.

[0073] This device achieves height-adaptive, precise cutting, and stable operation for breadfruit harvesting: the 120mm telescopic rod adapts to fruit trees of different heights, and the anti-slip structure enhances hand stability; meanwhile, the aluminum alloy and stainless steel materials combine lightweight design with durability, and the breathable vents delay component corrosion. The entire device has a simple structure and is easy to operate, allowing a single person to complete the harvesting operation. It can harvest 30-50 breadfruits per hour, increasing efficiency by more than 40% compared to traditional tools, and reducing fruit damage rate to below 5%, effectively meeting the harvesting needs of large-scale breadfruit cultivation.

[0074] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A handheld breadfruit harvesting device, characterized in that, include: The grip rod (10) includes a main rod (110) and a telescopic rod (120), wherein the telescopic rod (120) is slidably inserted into the main rod (110), and the telescopic rod (120) and the main rod (110) can be adjusted relative to each other and fixed relative to each other; A bracket (20) is fixed to the top of the telescopic rod (120), and the bracket (20) has two connection points; The fruit receiving mechanism (30) is hinged to the two connection points and is used to receive breadfruit. A cutting blade (40) is fixed to the upper edge of the fruit collecting mechanism (30). The blade of the cutting blade (40) is arc-shaped and is set towards the center of the fruit collecting mechanism (30).

2. The handheld breadfruit harvesting device according to claim 1, characterized in that, The fruit-collecting mechanism (30) includes a cylindrical wall (310) and a bottom plate (320), and two shafts (330) are arranged opposite each other on the top of the outer surface of the cylindrical wall (310). The bracket (20) has two connection points, which are collars (210); the shaft (330) is hinged to the collar (210).

3. The handheld breadfruit harvesting device according to claim 2, characterized in that, The upper edge of the cylinder wall (310) is provided with a positioning rod (340) and a threaded rod (350). The cutting blade (40) has a positioning hole (410) and a connecting hole (420). The positioning rod (340) and the positioning hole (410) are fitted together for positioning. The threaded rod (350) and the connecting hole (420) are fitted together for positioning. The threaded rod (350) is used to thread a fixing nut (360) to fix the cutting blade (40).

4. The handheld breadfruit harvesting device according to claim 3, characterized in that, At least two threaded rods (350) are provided, and the positioning rod (340) is provided between the threaded rods (350).

5. The handheld breadfruit harvesting device according to claim 2, characterized in that, The fruit-collecting mechanism (30) is made of metal material, and several ventilation holes (301) are provided on the cylinder wall (310) and the bottom plate (320).

6. The handheld breadfruit harvesting device according to claim 2, characterized in that, The cutting blade (40) is symmetrical about the perpendicular bisector of the shaft (330).

7. The handheld breadfruit harvesting device according to claim 6, characterized in that, The cutting blade (40) is a single-edged blade, and the bottom surface of the cutting blade (40) is a plane.

8. The handheld breadfruit harvesting device according to claim 2, characterized in that, A damping component is provided between the collar (210) and the shaft (330).

9. The handheld breadfruit harvesting device according to any one of claims 1 to 8, characterized in that, A threaded seat (130) is provided on the top of the side wall of the main rod (110). The threaded seat (130) is used to thread a threaded pressure rod (140). The threaded pressure rod (140) is used to press the telescopic rod (120) to achieve fixation.

10. The handheld breadfruit harvesting device according to claim 9, characterized in that, The bottom of the side wall of the main rod (110) is radially enlarged to provide a handhold (111), and the outer surface of the handhold (111) is provided with anti-slip texture.

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