A portable cannabis harvesting device
The design of the limiting plate, threaded groove, and hand-tightening bolts solves the problem of complex blade disassembly, enabling convenient blade replacement and flexible operation of the equipment, thereby improving the efficiency and cost-effectiveness of hemp harvesting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG LINGRAN AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-26
AI Technical Summary
Existing agricultural production equipment has a complex method of fixing cutting blades, and disassembly and replacement often require the use of multiple tools, which affects the harvesting progress. In addition, some equipment designs lack convenience and practicality.
The design of the limiting plate, threaded groove and hand-tightening bolt makes it easier to disassemble and replace the cutting blade. The combination of connecting rod, handle and shoulder strap enhances the flexibility and portability of the equipment.
It enables quick disassembly and replacement of cutting blades, improving the ease of maintenance and practicality of the equipment, reducing maintenance costs, and enhancing operational flexibility and ergonomic comfort.
Smart Images

Figure CN224267438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural production technology, specifically a convenient hemp harvesting device. Background Technology
[0002] The portable hemp harvester is a specialized piece of equipment used in agricultural production for the rapid harvesting of hemp. Through its innovative structural design, this device efficiently completes the cutting of hemp, facilitating the harvesting process. Its unique blade installation and removal mechanism allows users to easily replace and maintain the cutting blades, ensuring the equipment remains in optimal working condition and effectively improving the efficiency and quality of hemp harvesting.
[0003] Traditional hemp harvesting equipment suffers from numerous problems in practical use. The cutting blades of most devices are complex to fix, often requiring multiple tools for disassembly and replacement, making the process cumbersome, time-consuming, and labor-intensive, severely impacting the harvesting progress. Furthermore, the complex disassembly process increases maintenance costs; if the blades wear out or are damaged, they cannot be replaced quickly and promptly, leading to prolonged equipment downtime and reduced overall production efficiency. In addition, some traditional devices lack convenience and practicality in their design, failing to meet the demands of modern agriculture for efficient and low-cost harvesting equipment, thus hindering the smooth progress of hemp harvesting. Therefore, we propose a portable hemp harvesting device. Utility Model Content
[0004] One of the technical problems this application aims to solve is that the cutting blades of existing agricultural production devices are fixed in a complicated way, and disassembly and replacement often require the use of multiple tools. Furthermore, some traditional devices lack convenience and practicality in their design, which seriously affects the progress of harvesting operations.
[0005] To address the aforementioned technical problems, this application provides a convenient hemp harvesting device, comprising a protective shell, a connecting base fixedly connected to the lower end of the protective shell, a motor disposed on one side of the inner wall of the protective shell, a first connecting shaft connected to one side of the lower end of the connecting base, a cutting blade connected to one side of the outer wall of the first connecting shaft, a fixing block fixedly connected to one side of the lower end of the connecting base, a second connecting shaft movably connected to one side of the fixing block, a threaded groove formed on one side of the outer wall of the lower end of the fixing block, a limiting plate movably connected to one side of the outer wall of the second connecting shaft, a slot formed on the limiting plate, a connecting groove formed at the other end of the limiting plate, and a hand-tightening bolt movably connected to one side of the limiting plate.
[0006] In some embodiments, a connecting rod is connected to one outer wall of the protective shell, a control device is connected to the side of the connecting rod away from the protective shell, a handle is fixedly connected to one outer wall of the control device, a grip bar is fixedly connected to one outer wall of the upper end of the control device, and a shoulder strap is fixedly connected to one side of the back of the control device.
[0007] In some embodiments, one side of the limiting plate is connected to the outer wall of the lower end of the cutting blade.
[0008] In some embodiments, the connecting groove on one side of the limiting plate is correspondingly connected to the first connecting shaft at the lower end of one side of the connecting base.
[0009] In some embodiments, the slot on one side of the limiting plate is threadedly connected to the threaded groove on one side of the fixing block.
[0010] In some embodiments, a hand-tightening bolt on one side of the limiting plate is connected to a slot on one side of the limiting plate.
[0011] In some embodiments, a hand-tightening bolt on one side of the limiting plate is threadedly connected to a threaded groove on one side of the limiting plate.
[0012] In some embodiments, the cutting blade is disposed on the lower outer wall of the connecting base and the upper outer wall of the limiting plate.
[0013] This utility model has at least the following beneficial effects:
[0014] 1. In use, this utility model, by setting a fixing block at the lower end of the connecting base, and combining it with components such as a limiting plate, a second connecting shaft, threaded groove, slot, and connecting groove, makes the disassembly and replacement of the cutting blade more convenient and faster. Users only need to manually rotate the hand-tightening bolt to fix or release the blade, without additional tools, significantly improving work efficiency and saving maintenance costs. This solves the problem of complex, time-consuming, and labor-intensive disassembly of traditional blade structures, effectively improving the ease of maintenance and practicality of the equipment.
[0015] 2. In use, the entire machine is connected to the control device via a connecting rod, and is further enhanced by a handle, grip, and shoulder strap, allowing the equipment to be held by hand or carried on the shoulder, thus improving its flexibility and portability. In particular, the connecting rod has an adjustable telescopic function, allowing the length to be adjusted according to the user's height, avoiding fatigue caused by bending over due to unsuitable equipment height, and effectively improving the ergonomic comfort of operation.
[0016] 3. In use, this device differs from traditional large harvesters in that it has a more compact and lightweight structure, making it easier for individual users to operate and carry. Its cost is relatively low, and it is simple to manufacture, allowing ordinary growers or individual farmers to easily purchase and use it, thus lowering the barrier to entry for harvesting equipment and possessing broad market adaptability and promotion prospects. Attached Figure Description
[0017] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;
[0019] Figure 3 This is a cross-sectional disassembly diagram of the protective shell of this utility model;
[0020] Figure 4 This is a schematic diagram of the disassembled structure of the connecting base of this utility model.
[0021] In the diagram: 1. Control device; 2. Handle; 3. Grip bar; 4. Shoulder strap; 5. Connecting rod; 6. Protective shell; 7. Connecting base; 8. Motor; 9. First connecting shaft; 10. Cutting blade; 11. Fixing block; 12. Threaded groove; 13. Second connecting shaft; 14. Limiting plate; 15. Slot; 16. Connecting groove; 17. Hand-tightening bolt. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a convenient hemp harvesting device, including a protective shell 6, a connecting base 7 fixedly connected to the lower end of the protective shell 6, a motor 8 provided on one side of the inner wall of the protective shell 6, a first connecting shaft 9 connected to one side of the lower end of the connecting base 7, a cutting blade 10 connected to one side of the outer wall of the first connecting shaft 9, a fixing block 11 fixedly connected to one side of the outer wall of the lower end of the connecting base 7, a second connecting shaft 13 movably connected to one side of the fixing block 11, a threaded groove 12 provided on one side of the outer wall of the lower end of the fixing block 11, a limiting plate 14 movably connected to one side of the outer wall of the second connecting shaft 13, and the cutting blade 10 disposed on the lower side of the outer wall of the connecting base 7 and the upper side of the outer wall of the limiting plate 14. One side of the positioning plate 14 is connected to the outer wall of the lower end of the cutting blade 10. A slot 15 is provided on the positioning plate 14. The slot 15 on one side of the positioning plate 14 is threadedly connected to the threaded groove 12 on one side of the fixing block 11. A connecting groove 16 is provided at the other end of the positioning plate 14. The connecting groove 16 on one side of the positioning plate 14 is connected to the first connecting shaft 9 at the lower end of one side of the connecting base 7. A hand-tightening bolt 17 is movably connected to one side of the positioning plate 14. The hand-tightening bolt 17 on one side of the positioning plate 14 is connected to the slot 15 on one side of the positioning plate 14. The hand-tightening bolt 17 on one side of the positioning plate 14 is threadedly connected to the threaded groove 12 on one side of the positioning plate 14.
[0024] In this embodiment, a protective shell 6 is designed, with a connecting base 7 fixedly connected to its lower end. A motor 8 is provided on one side of the inner wall of the protective shell 6, and a first connecting shaft 9 is connected to the lower end of the motor 8. The first connecting shaft 9 extends to the lower end of the connecting base 7 and is connected to a cutting blade 10. Therefore, when the protective shell 6 is activated, it drives the first connecting shaft 9 to rotate, which in turn drives the cutting blade 10 to rotate at the lower end of the connecting base 7. This allows the marijuana to be harvested using the cutting blade 10. However, the existing cutting blade 10 is difficult to disassemble and requires additional tools for removal and replacement, which is cumbersome. Therefore, a fixing block 11 is fixedly connected to the lower end of the connecting base 7. A threaded groove 12 is provided on one side of the lower end of the fixing block 11, and a threaded groove 12 is provided on the other side of the lower end of the fixing block 11. The second connecting shaft 13 is movably connected to the limiting plate 14. The limiting plate 14 has a slot 15 and a connecting groove 16 respectively. The slot 15 is connected to the threaded groove 12, and the connecting groove 16 is connected to the lower end of the first connecting shaft 9. Therefore, when the limiting plate 14 rotates around the second connecting shaft 13, the limiting plate 14 is connected to the lower end of the cutting blade 10, and the connecting groove 16 is connected to the first connecting shaft 9. At this time, the hand-tightening bolt 17 is threaded through the slot 15 and the threaded groove 12, and the hand-tightening bolt 17 and the slot 15 are connected in a cross pattern. This allows the limiting plate 14 to limit the cutting blade 10. Conversely, the cutting blade 10 can be disassembled and replaced. This method greatly improves the efficiency of replacement work, makes the maintenance of the cutting blade 10 more convenient, and saves costs to a certain extent.
[0025] Example 2: Please refer to Figure 1-2 A connecting rod 5 is connected to one side of the outer wall of the protective shell 6. A control device 1 is connected to the side of the connecting rod 5 away from the protective shell 6. A handle 2 is fixedly connected to one side of the outer wall of the control device 1. A grip bar 3 is fixedly connected to one side of the upper outer wall of the control device 1. A shoulder strap 4 is fixedly connected to one side of the back of the control device 1.
[0026] In this embodiment, a control device 1 is connected to one side of the outer wall of the protective shell 6 via a connecting rod 5. A handle 2 is fixedly connected to one side of the outer wall of the control device 1, and a grip 3 is fixedly connected to the upper outer wall of the control device 1. A shoulder strap 4 is connected to the back of the control device 1. The control device 1 can be worn diagonally across the waist via the shoulder strap 4, and the handle 2 and grip 3 can be held in hand to carry the device and perform hemp harvesting operations. This solves the shortcomings of existing large harvesters, which are expensive and bulky, making them affordable and space-saving for everyone. The control device 1 has a control function, which can regulate the motor 8 inside the protective shell 6, thereby driving and adjusting the speed of the cutting blade 10. This is existing technology and will not be described in detail. The connecting rod 5 is telescopic and can be adjusted in length according to the user's height and body shape, so that the user does not have to bend over while working.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A portable hemp harvesting device, comprising a protective shell (6), the lower end of which is fixedly connected with a connecting base (7), and the inner wall of the protective shell (6) is provided with a motor (8), characterized in that: The lower end of the connecting base (7) is connected to a first connecting shaft (9), and a cutting blade (10) is connected to the outer wall of the first connecting shaft (9). A fixing block (11) is fixedly connected to the outer wall of the lower end of the connecting base (7). A second connecting shaft (13) is movably connected to one side of the fixing block (11). A threaded groove (12) is opened on the outer wall of the lower end of the fixing block (11). A limiting plate (14) is movably connected to the outer wall of one side of the second connecting shaft (13). A slot (15) is opened on the limiting plate (14). A connecting groove (16) is opened at the other end of the limiting plate (14). A hand-tightening bolt (17) is movably connected to one side of the limiting plate (14).
2. The portable cannabis harvesting device according to claim 1, characterized in that: A connecting rod (5) is connected to one side of the outer wall of the protective shell (6). A control device (1) is connected to the side of the connecting rod (5) away from the protective shell (6). A handle (2) is fixedly connected to one side of the outer wall of the control device (1). A grip bar (3) is fixedly connected to one side of the upper end of the control device (1). A shoulder strap (4) is fixedly connected to one side of the back of the control device (1).
3. The portable cannabis harvesting device according to claim 1, characterized in that: One side of the limiting plate (14) is connected to the outer wall of the lower end of the cutting blade (10).
4. A portable cannabis harvesting device according to claim 1, characterized in that: The connecting groove (16) on one side of the limiting plate (14) is connected to the first connecting shaft (9) at the lower end of one side of the connecting base (7).
5. A portable cannabis harvesting device according to claim 1, characterized in that: The slot (15) on one side of the limiting plate (14) is threadedly connected to the threaded groove (12) on one side of the fixing block (11).
6. A portable cannabis harvesting device according to claim 1, characterized in that: The hand-tightening bolt (17) provided on one side of the limiting plate (14) is connected to the slot (15) opened on one side of the limiting plate (14).
7. A portable cannabis harvesting device according to claim 1, characterized in that: The hand-tightening bolt (17) provided on one side of the limiting plate (14) is threadedly connected to the threaded groove (12) opened on one side of the limiting plate (14).
8. A portable cannabis harvesting device according to claim 1, characterized in that: The cutting blade (10) is located on the lower outer wall of the connecting base (7) and the upper outer wall of the limiting plate (14).