A handheld mulberry leaf harvesting device

Abstract

This invention discloses a handheld mulberry leaf harvesting device, comprising: a body, which has a clamping structure and is cylindrical with its open end closed; a cutting component, located inside the open end of the body, for cutting mulberry leaves, which automatically opens when the body is closed; a leaf-splitting component, also located inside the open end of the body, for guiding mulberry leaves toward the cutting area of ​​the cutting component; and a guide component, located at the center of the open end of the body, for restraining mulberry branches away from the cutting area of ​​the cutting component. The advantages of this invention are: this design of the body and cutting component ensures that the cutting component only activates when the body is closed, making it safer; and the leaf-splitting component and guide component allow for better cutting of mulberry leaves and protection of mulberry branches, making it more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of mulberry leaf harvesting, and more specifically to a handheld mulberry leaf harvesting device. Background Technology

[0002] Silkworm farming is an important part of my country's traditional and distinctive agricultural industry. Mulberry leaves are the sole source of feed for silkworms, and their harvesting efficiency directly affects the economic benefits of the silkworm farming industry. Currently, mulberry leaf harvesting mainly relies on the following two methods: Manual picking: This method relies on manual picking of mulberry leaves one by one. This method has the following drawbacks: (1) The work efficiency is extremely low, and the daily harvest of a single person is limited, which is difficult to meet the needs of large-scale mulberry orchards; (2) The labor intensity is high, and long-term repetitive picking actions can easily lead to finger joint fatigue, wear and tear or even damage; (3) The picking quality is unstable. When picking manually, the bark is often torn off or tender branches are broken, which affects the subsequent growth and development of mulberry trees and their leaf production capacity.

[0003] General-purpose electric pruning tools, such as hedge trimmers and electric pruning shears, are not specifically designed for mulberry leaf harvesting and have the following shortcomings: First, the blade structure is not adapted to the growth characteristics of mulberry leaves (slender petioles, large leaves, and clustered distribution), and direct cutting can easily damage the main trunk of the mulberry branches, making it impossible to achieve precise "leaf harvesting without damaging branches"; second, they lack guiding and protective mechanisms for mulberry branches, making the branches prone to deviation and damage during the cutting process; third, the start-stop control methods are outdated, mostly using continuous pressing mechanical switches, which are cumbersome to operate and can easily cause hand fatigue during long-term use, while also posing a safety hazard of accidental triggering.

[0004] Therefore, we propose a handheld mulberry leaf harvesting device. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a handheld mulberry leaf harvesting device.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A handheld mulberry leaf harvesting device includes: a body, which has a clamp structure and is cylindrical with its open end closed; a cutting component, which is located inside the open end of the body and cuts the mulberry leaves, and automatically opens when the body is closed; a leaf separating component, which is also located inside the open end of the body and moves the mulberry leaves toward the cutting area of ​​the cutting component; and a guide component, which is located at the center of the open end of the body and restrains the mulberry branches to keep them away from the cutting area of ​​the cutting component.

[0007] By designing a clamp-like body, the mulberry branch is inserted into the open end of the machine during use. Closing the machine activates the cutting component, while simultaneously the leaf-splitting component moves the mulberry leaves towards the cutting area, allowing them to be cut. The machine can then be moved along the branch to harvest the leaves. The guide component restrains the branch during cutting, preventing it from being cut by the cutting component during vertical movement. Furthermore, the cutting component only activates when the machine is closed, enhancing safety.

[0008] Further defining the main body, the main body includes a main grip, a secondary grip, and a frame; the front ends of the main grip and the secondary grip are cross-hinged, and the main grip and the secondary grip are normally open through a torsion spring at the hinge point. The frame includes a base plate and a guardrail, both of which are split structures. The guardrail is vertically mounted on the base plate, and the base plates and guardrails on both sides are fixed to the front ends of the main grip and the secondary grip, respectively.

[0009] With this body design, the main handle and auxiliary handle are separated under no stress due to the torsion spring, preventing the cutting components from starting and making it safer. The base plate and enclosure serve as the frame, increasing the frame's thickness and facilitating the fixing of the frame to the main and auxiliary handles.

[0010] Further defining the components, the cutting assembly includes a cutting motor, a cutting blade, and a photoelectric sensor switch; the enclosure is octagonal in shape when the machine body is closed, the cutting motor is spaced on the inner wall of the enclosure and its output axis is inward, the cutting blade is fixedly connected to the output shaft of the cutting motor, the cross-section of the auxiliary handle is U-shaped, the photoelectric sensor switch is located inside the auxiliary handle and is electrically connected to the cutting motor, and the photoelectric sensor switch is turned on when the main handle and the auxiliary handle are closed.

[0011] By placing the photoelectric sensor switch inside the secondary handle, the switch is activated when the main and secondary handles are pinched together, which drives the cutting motor to start working. This setup of the enclosure and cutting motor allows for the cutting and harvesting of mulberry leaves from multiple directions, resulting in higher harvesting efficiency.

[0012] Further defining the guide assembly, the guide cylinder is flared and includes an expanded diameter section at the top and a straight section at the bottom. The straight section is continuously mounted on the base plate. The top height of the expanded diameter section is the same as the height of the cutting motor, and the edge of the maximum outer diameter does not interfere with the cutting blade.

[0013] By installing a guide tube, the mulberry branches are confined inside the guide tube during mulberry leaf harvesting, preventing them from being cut by the cutting blades located outside the guide tube, thus providing better protection for the mulberry branches.

[0014] Further defining the segmented assembly, the segmented assembly includes a segmented rod, which is inverted V-shaped and has its bottom end connected to the edge of the expanded diameter section. The segmented rod and the cutting blade are staggered in the orientation of the enclosure. A diagonal brace is provided in the middle of the segmented rod, and the bottom end of the diagonal brace is fixed to the top of the enclosure.

[0015] The leaf-splitting rod is set in an inverted V-shape. When the mulberry leaf comes into contact with the leaf-splitting rod, the tip of the rod is pointed, so the leaf will be pushed to both sides of the rod. Due to the misalignment of the leaf-splitting rod and the cutting blade, the leaf will be pushed to the area where the cutting blade is located and then cut by the blade. The diagonal bracing rod can improve the stability of the leaf-splitting rod.

[0016] Further specifying, it also includes a collection component, which includes a net fixing rod and a connecting rod; the net fixing rod is an arc-shaped rod, and the net fixing rod is fixedly connected to the base plate and the enclosure through the connecting rod, and the connecting rod is arranged in a radiating shape.

[0017] The net fixing pole is set in an arc shape to hang the collection net. The cut mulberry leaves fall into the collection net below, making it more convenient to use.

[0018] The beneficial effects of this invention are as follows: the cutting component is activated only when the machine body is in a pinched state, which is safer; the leaf-splitting component and the guide component can better cut the mulberry leaves and protect the mulberry branches, making it more convenient to use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the frame section; Figure 3 A three-dimensional structural diagram of the guide component.

[0020] The symbols for each component are as follows: Machine body 1, main handle 11, auxiliary handle 12, frame 13, base plate 131, enclosure 132, cutting assembly 2, cutting motor 21, cutting blade 22, photoelectric sensor switch 23, leaf-splitting assembly 3, leaf-splitting rod 31, diagonal brace 32, guide assembly 4, diameter expansion section 41, straight section 42, collection assembly 5, net fixing rod 51, connecting rod 52. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0024] like Figures 1-3 As shown, this disclosure relates to a handheld mulberry leaf harvesting device for mulberry leaf picking and harvesting operations. The handheld mulberry leaf harvesting device includes a body 1, a cutting component 2, a leaf-splitting component 3, and a guiding component 4. The body 1 has a clamp structure, and when the open end of the body 1 is closed, it is cylindrical in shape. The cutting component 2 is installed inside the open end of the body 1 and is used to cut the mulberry leaves; the cutting component 2 only automatically opens when the body 1 is closed. The leaf-splitting component 3 is also located inside the open end of the body 1 and is used to move the mulberry leaves to the cutting area of ​​the cutting component 2. The guiding component 4 is located at the center of the open end of the body 1 and is used to constrain and limit the mulberry branches, keeping them away from the cutting area of ​​the cutting component 2 and preventing accidental cutting or damage.

[0025] Currently, mulberry leaf harvesting mostly relies on manual picking, which is labor-intensive and inefficient. Conventional harvesting tools lack dedicated mulberry branch protection structures, easily cutting the branches and affecting tree growth. Furthermore, the exposed blades pose a safety risk. This solution employs a clamp-type machine body 1. During use, the mulberry branch is inserted into the opening of body 1. Closing body 1 triggers the cutting component 2. As body 1 closes, the leaf-separating component 3 guides the mulberry leaves to the cutting area, completing the cutting. The entire branch can be harvested by simply moving body 1 along the branch. Simultaneously, the guiding component 4 isolates and protects the mulberry branch, preventing damage during cutting. The cutting component 2 only activates when body 1 is closed, remaining inactive when idle, thus enhancing safety.

[0026] Preferably, the machine body 1 includes a main handle 11, a secondary handle 12, and a frame 13; the front ends of the main handle 11 and the secondary handle 12 are hinged together, and the main handle 11 and the secondary handle 12 are kept in a normally open state by torsion springs at the hinge points; the frame 13 includes a base plate 131 and a guardrail 132, both of which are split structures. The guardrail 132 is vertically mounted on the base plate 131, and the two side base plates 131 and guardrails 132 are respectively fixed to the front ends of the main handle 11 and the secondary handle 12. In the natural state, the torsion springs support the main handle 11 and the secondary handle 12 to keep them in an open state, preventing the cutting component 2 from being accidentally activated and ensuring high safety during use; the split base plate 131 and the guardrail 132 form the frame 13 structure, which has a large overall thickness and high structural strength, making it easy to assemble and fix with the main handle 11 and the secondary handle 12.

[0027] Preferably, the cutting assembly 2 includes a cutting motor 21, cutting blades 22, and a photoelectric sensor switch 23. When the machine body 1 is closed, the enclosure 132 is octagonal in shape. The cutting motors 21 are spaced apart on the inner wall of the enclosure 132 and arranged axially inwards. The cutting blades 22 are fixedly mounted on the output shaft of the cutting motors 21. The secondary handle 12 has a U-shaped cross-section. The photoelectric sensor switch 23 is located inside the secondary handle 12 and electrically connected to the cutting motors 21. When the main handle 11 and the secondary handle 12 are closed, the photoelectric sensor switch 23 is activated, controlling the cutting motors 21 to start. Multiple sets of cutting blades 22 are arranged circumferentially, allowing for multi-directional cutting of mulberry leaves without harvesting blind spots, effectively improving mulberry leaf harvesting efficiency. The control logic is simple and reliable, relying on the pinching and closing mechanism to trigger the sensor switch for start / stop.

[0028] Preferably, the guide assembly 4 includes a guide cylinder, which is flared and consists of a top expanding section 41 and a bottom straight section 42. The straight section 42 extends through the base plate 131. The top height of the expanding section 41 is the same as the height of the cutting motor 21, and the edge of the maximum outer diameter of the expanding section 41 does not interfere with the cutting blade 22. During operation, the mulberry branch is inserted into the guide cylinder, and the guide cylinder provides isolation and limitation, keeping the mulberry branch inside the cutting area at all times. This effectively prevents the cutting blade 22 from accidentally damaging the mulberry branch and provides good protection for it.

[0029] Preferably, the leaf-splitting assembly 3 includes a leaf-splitting rod 31, which has an inverted V-shaped structure. The bottom end of the leaf-splitting rod 31 is connected to the edge of the expanded diameter section 41. The leaf-splitting rod 31 and the cutting blade 22 are offset circumferentially around the enclosure 132. A diagonal brace 32 is provided in the middle of the leaf-splitting rod 31, and the bottom end of the diagonal brace 32 is fixed to the top of the enclosure 132. The inverted V-shaped leaf-splitting rod 31 can divert and guide the mulberry leaves, evenly feeding them to the outer cutting blade 22 area to ensure smooth cutting of the mulberry leaves. The diagonal brace 32 can reinforce and support the leaf-splitting rod 31, improving the overall structural stability of the leaf-splitting rod 31 and ensuring long-term stable leaf-splitting operation.

[0030] Preferably, the device further includes a collection component 5, which includes a net fixing rod 51 and a connecting rod 52. The net fixing rod 51 is an arc-shaped rod, and it is fixedly connected to the base plate 131 and the enclosure 132 via the connecting rod 52. The connecting rod 52 is arranged in a radiating pattern. The arc-shaped net fixing rod 51 can directly hang the collection net, and the cut and fallen mulberry leaves can fall directly into the collection net for centralized collection without the need for secondary manual collection, making the operation convenient. The radiating connecting rod 52 provides stable support and good load-bearing capacity.

[0031] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A handheld mulberry leaf harvesting device, characterized in that, include: The body (1) has a clamp structure and is cylindrical with the open end closed; The cutting component (2) is located inside the opening end of the machine body (1) and cuts mulberry leaves. When the machine body (1) is closed, the cutting component (2) automatically opens. The leaf-splitting component (3) is also located inside the opening end of the body (1) to move the mulberry leaves toward the cutting area of ​​the cutting component (2); The guide component (4) is located at the center of the opening end of the body (1) and constrains the mulberry branch to keep it away from the cutting area of ​​the cutting component (2).

2. The handheld mulberry leaf harvesting device according to claim 1, characterized in that, The body (1) includes a main handle (11), a secondary handle (12), and a frame (13); the front ends of the main handle (11) and the secondary handle (12) are hinged together, and the main handle (11) and the secondary handle (12) are normally open through a torsion spring at the hinge point. The frame (13) includes a base plate (131) and a enclosure (132). The base plate (131) and the enclosure (132) are both split structures. The enclosure (132) is vertically mounted on the base plate (131). The base plate (131) and the enclosure (132) on both sides are fixed to the front ends of the main handle (11) and the secondary handle (12), respectively.

3. The handheld mulberry leaf harvesting device according to claim 2, characterized in that, The cutting assembly (2) includes a cutting motor (21), a cutting blade (22), and a photoelectric sensor switch (23). The enclosure (132) is octagonal in shape when the body (1) is closed. The cutting motor (21) is spaced on the inner wall of the enclosure (132) and its output axis is inward. The cutting blade (22) is fixedly connected to the output shaft of the cutting motor (21). The cross-section of the secondary handle (12) is U-shaped. The photoelectric sensor switch (23) is located inside the secondary handle (12) and is electrically connected to the cutting motor (21). When the main handle (11) and the secondary handle (12) are closed, the photoelectric sensor switch (23) is turned on.

4. The handheld mulberry leaf harvesting device according to claim 3, characterized in that, The guide assembly (4) includes a guide cylinder, which is flared and includes an expanded diameter section (41) at the top and a straight cylinder section (42) at the bottom. The straight cylinder section (42) passes through the base plate (131). The top height of the expanded diameter section (41) is the same as the height of the cutting motor (21), and the edge of the maximum outer diameter does not interfere with the cutting blade (22).

5. The handheld mulberry leaf harvesting device according to claim 4, characterized in that, The leaf-splitting assembly (3) includes a leaf-splitting rod (31), which is inverted V-shaped and has its bottom end connected to the edge of the expanded diameter section (41). The leaf-splitting rod (31) and the cutting blade (22) are offset in the orientation of the enclosure (132). The middle part of the leaf-splitting rod (31) is provided with a diagonal brace (32), and the bottom end of the diagonal brace (32) is fixed to the top of the enclosure (132).

6. The handheld mulberry leaf harvesting device according to claim 5, characterized in that, It also includes a collection component (5), which includes a net fixing rod (51) and a connecting rod (52); the net fixing rod (51) is an arc-shaped rod, and the net fixing rod (51) is fixedly connected to the bottom plate (131) and the enclosure (132) through the connecting rod (52), and the connecting rod (52) is arranged in a divergent manner.

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