A telescopic mechanism for high-branch pruning of pomelo trees
By designing a telescopic mechanism for high-branch pruning of pomelo trees, the problem of arm pain caused by staff holding the equipment high for a long time was solved, and efficient and stable high-branch pruning operations were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGGANGSHAN TAIYUAN AGRICULTURE & FORESTRY DEVELOPMENT CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-30
AI Technical Summary
When pruning high branches of pomelo trees, workers need to hold the pruning equipment high for a long time, which causes arm pain and affects pruning efficiency.
A telescopic mechanism for high-branch pruning of pomelo trees was designed, including a fixed cylinder, an adjusting rod, an electric push rod, and a locking device. By adjusting the height and angle of the adjusting rod, combined with the lifting and rotation of the electric push rod, high-branch pruning can be achieved, reducing manual lifting actions.
It improves pruning efficiency, avoids arm pain for workers, enhances the stability and flexibility of the equipment, and adapts to the operating needs of different heights.
Smart Images

Figure CN224419456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high branch pruning technology, specifically a telescopic mechanism for high branch pruning of pomelo trees. Background Technology
[0002] Honey pomelo, also known as fragrant pomelo, is a high-quality variety of pomelo. It is commonly grown in southern China, with pomelos from Pinghe County in Fujian Province and Shaoguan in Guangdong Province being the most famous. The fruit ranges in size from small tangerines or oranges to large melons, with a thick, yellow peel that must be peeled before eating the pulp. It is mostly harvested in October and November when the fruit is ripe. Its thick peel makes it easy to store, generally lasting up to three months without losing its aroma, hence its nickname "natural fruit preserve."
[0003] To optimize ventilation and light penetration, balance nutrient distribution, and promote fruit development, pomelo trees often require pruning of their high branches. Pruning is typically done by hand, with workers holding the pruning equipment high for extended periods, which can cause arm pain and reduce pruning efficiency. Therefore, a telescopic mechanism for pruning high branches of pomelo trees is needed. Utility Model Content
[0004] The purpose of this invention is to provide a telescopic mechanism for high-branch pruning of pomelo trees, which solves the problems mentioned in the background art.
[0005] This application provides a telescopic mechanism for high-branch pruning of pomelo trees, including a base. A fixed cylinder is fixedly connected to the top of the base. An adjusting rod is slidably arranged inside the fixed cylinder. A locking bolt is threaded through the outer wall of the fixed cylinder and threadedly connected to the adjusting rod. A rotating shaft is fixedly connected to the top of the adjusting rod. A mounting bracket is fixedly connected to the rotating end face of the rotating shaft. An adjusting cylinder is rotatably connected inside the mounting bracket via a rotating rod. An electric push rod is inserted inside the adjusting cylinder. A locking hole is opened on the outer wall of the electric push rod. A set screw is screwed into the threaded hole on the outside of the adjusting cylinder, and the set screw extends into the locking hole.
[0006] During use, operators can slide the adjustment rod inside the fixed cylinder to adjust the height of the mounting frame according to their own height. After adjustment, the adjustment rod can be locked and fixed by locking bolts. Then, the electric push rod is inserted into the adjustment cylinder, and the electric push rod can be installed and fixed by using the set screw and locking hole. Since the mounting frame and the adjustment cylinder are connected by a rotating rod, the electric push rod inside the adjustment cylinder can be tilted. Under the action of the rotating shaft, the electric push rod can also be rotated, allowing for multi-angle adjustment. The piston rod of the electric push rod can push the cutter head to rise and fall, thereby completing the pruning of high branches of the pomelo tree. The insertion rod can be inserted into the soil to improve the stability of the base on the ground. The reinforcement plate can further improve the stability of the base, thereby improving the overall stability of the equipment.
[0007] Optionally, a cutter head is fixedly connected to the end face of the piston rod of the electric push rod.
[0008] By adopting the above technical solution, the high branches of pomelo trees can be pruned using the blade.
[0009] Optionally, a handle is fixedly connected to the front wall of the adjusting cylinder, the handle being located below the set screw, and the handle having an inverted L-shaped structure.
[0010] By adopting the above technical solution, the angle of the adjusting cylinder can be adjusted more flexibly and conveniently by the grip.
[0011] Optionally, the adjusting rod has multiple threaded holes along its length that are compatible with the locking bolts.
[0012] By adopting the above technical solution, it is beneficial to lock and fix the adjusting rod after the position is adjusted.
[0013] Optionally, connecting rods are fixedly connected to both outer walls of the set screw.
[0014] By adopting the above technical solution, the set screw can be manually rotated more flexibly via the connecting rod without the need for external tools.
[0015] Optionally, reinforcing plates are fixedly connected to both outer walls of the base, and a plug rod is fixedly connected to the bottom end of the base.
[0016] By adopting the above technical solution, the insertion rod can be inserted into the soil, improving the stability of the base on the ground, and the reinforcement plate can further improve the stability of the base.
[0017] Optionally, the adjusting cylinder is provided with a limiting groove adapted to the electric push rod.
[0018] By adopting the above technical solution, it is beneficial to improve the stability of the electric push rod installed in the adjusting cylinder and avoid wobbling.
[0019] Optionally, the fixing cylinder is a hollow cylindrical structure, and the diameter of the fixing cylinder is adapted to the diameter of the adjusting rod.
[0020] By adopting the above technical solution, the stability of the adjusting rod installed inside the fixed cylinder is further improved, and shaking is avoided.
[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0022] The technical solution of this application allows for the adjustment and fixation of the mounting frame height through the cooperation of the fixing cylinder, locking bolt, and adjusting rod, accommodating workers of different heights. The rotating adjusting cylinder inside the mounting frame, together with the set screw, enables the installation and fixation of the electric push rod. Furthermore, under the action of the rotating adjusting cylinder and the rotating shaft, the electric push rod can be adjusted at multiple angles, improving the flexibility of use. Through the cooperation of the above structures, there is no need for personnel to hold the electric push rod manually for high-branch pruning, thus avoiding the long-term lifting action of workers and preventing arm pain, thereby improving pruning efficiency. Attached Figure Description
[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0024] Figure 1 This is a schematic diagram of the overall structure of a telescopic mechanism for high-branch pruning of pomelo trees according to this utility model;
[0025] Figure 2 This is a front view schematic diagram of the telescopic mechanism for high branch pruning of pomelo trees according to the present invention;
[0026] Figure 3 for Figure 1 A magnified schematic diagram of the local structure of region A;
[0027] Figure 4 This is a schematic diagram showing the disassembled structure of the electric push rod and adjusting cylinder of the telescopic mechanism for high branch pruning of pomelo trees according to this utility model.
[0028] In the diagram: 1. Reinforcing plate; 2. Base; 3. Fixing cylinder; 4. Electric push rod; 5. Cutting head; 6. Handle; 7. Locking bolt; 8. Threaded hole; 9. Adjusting rod; 10. Adjusting cylinder; 11. Mounting bracket; 12. Insert rod; 13. Connecting rod; 14. Set screw; 15. Rotating shaft; 16. Locking hole. Detailed Implementation
[0029] Please see Figure 1-4 This utility model provides a technical solution: a telescopic mechanism for high-branch pruning of pomelo trees, including a base 2, a fixed cylinder 3 fixedly connected to the top of the base 2, an adjusting rod 9 slidably arranged inside the fixed cylinder 3, a locking bolt 7 threaded through the outer wall of the fixed cylinder 3, the locking bolt 7 being threadedly connected to the adjusting rod 9, a rotating shaft 15 fixedly connected to the top of the adjusting rod 9, a mounting bracket 11 fixedly connected to the rotating end face of the rotating shaft 15, an adjusting cylinder 10 rotatably connected inside the mounting bracket 11 via a rotating rod, an electric push rod 4 inserted inside the adjusting cylinder 10, a locking hole 16 opened on the outer wall of the electric push rod 4, a set screw 14 screwed into the external threaded hole of the adjusting cylinder 10, the set screw 14 extending into the locking hole 16.
[0030] In the technical solution of this utility model, such as Figure 1 As shown, a cutter head 5 is fixedly connected to the end face of the piston rod of the electric push rod 4; the cutter head 5 can be used to prune the high branches of the pomelo tree.
[0031] In the technical solution of this utility model, such as Figure 1 As shown, a handle 6 is fixedly connected to the front wall of the adjusting cylinder 10. The handle 6 is located below the set screw 14 and has an inverted L-shaped structure. The handle 6 allows the operator to adjust the angle of the adjusting cylinder 10 more flexibly and conveniently.
[0032] In the technical solution of this utility model, such as Figure 2 As shown, the adjusting rod 9 has multiple threaded holes 8 along its length that are compatible with the locking bolts 7; this facilitates locking and fixing the adjusting rod 9 after adjustment.
[0033] In the technical solution of this utility model, such as Figure 3 As shown, connecting rods 13 are fixedly connected to both outer walls of the set screw 14; the set screw 14 can be manually rotated more flexibly through the connecting rods 13 without the need for external tools.
[0034] In the technical solution of this utility model, such as Figure 1 As shown, reinforcing plates 1 are fixedly connected to both outer walls of the base 2, and a rod 12 is fixedly connected to the bottom of the base 2; the rod 12 can be inserted into the soil to improve the stability of the base 2 on the ground, and the reinforcing plates 1 can further improve the stability of the base 2.
[0035] In the technical solution of this utility model, such as Figure 4 As shown, the adjusting cylinder 10 is provided with a limiting groove that is compatible with the electric push rod 4; this helps to improve the stability of the electric push rod 4 installed in the adjusting cylinder 10 and avoids shaking.
[0036] In the technical solution of this utility model, such as Figure 1As shown, the fixing cylinder 3 is a hollow cylindrical structure, and the diameter of the hole in the fixing cylinder 3 is matched with the diameter of the adjusting rod 9; this further improves the stability of the adjusting rod 9 installed inside the fixing cylinder 3 and avoids shaking.
[0037] During use, the operator can slide the adjusting rod 9 inside the fixed cylinder 3 to adjust the height of the mounting frame 11 according to their own height. After adjustment, the adjusting rod 9 can be locked and fixed by the locking bolt 7. Then, the electric push rod 4 is inserted into the adjusting cylinder 10. The electric push rod 4 can be installed and fixed by the set screw 14 and the locking hole 16. Since the mounting frame 11 and the adjusting cylinder 10 are connected by a rotating rod, the electric push rod 4 inside the adjusting cylinder 10 can be tilted. Under the action of the rotating shaft 15, the electric push rod 4 can also be rotated, allowing for multi-angle adjustment. The piston rod of the electric push rod 4 can push the cutter head 5 to rise and fall, thereby completing the pruning of the high branches of the pomelo tree. The insertion rod 12 can be inserted into the soil to improve the stability of the base 2 on the ground. The reinforcing plate 1 can further improve the stability of the base 2, thereby improving the overall stability of the equipment.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A telescopic mechanism for high-branch pruning of pomelo trees, characterized in that: The device includes a base (2), a fixed cylinder (3) is fixedly connected to the top of the base (2), an adjusting rod (9) is slidably arranged inside the fixed cylinder (3), a locking bolt (7) is threaded through the outer wall of the fixed cylinder (3), the locking bolt (7) is threadedly connected to the adjusting rod (9), a rotating shaft (15) is fixedly connected to the top of the adjusting rod (9), a mounting bracket (11) is fixedly connected to the rotating end face of the rotating shaft (15), an adjusting cylinder (10) is rotatably connected inside the mounting bracket (11) through a rotating rod, an electric push rod (4) is inserted inside the adjusting cylinder (10), a locking hole (16) is opened on the outer wall of the electric push rod (4), a set screw (14) is screwed into the external threaded hole of the adjusting cylinder (10), and the set screw (14) extends into the locking hole (16).
2. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The piston rod of the electric push rod (4) is fixedly connected to a cutter head (5).
3. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The front wall of the adjusting cylinder (10) is fixedly connected to a handle (6), which is located below the set screw (14) and has an inverted L-shaped structure.
4. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The adjusting rod (9) has multiple threaded holes (8) along its length that are compatible with the locking bolt (7).
5. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The set screw (14) has connecting rods (13) fixedly connected to both outer walls.
6. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The base (2) has a reinforcing plate (1) fixedly connected to both outer walls, and a plug rod (12) fixedly connected to the bottom end of the base (2).
7. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The regulating cylinder (10) is provided with a limiting groove that is compatible with the electric push rod (4).
8. The telescopic mechanism for high-branch pruning of pomelo trees according to claim 1, characterized in that, The fixed cylinder (3) is a hollow cylindrical structure, and the diameter of the hole of the fixed cylinder (3) is adapted to the diameter of the adjusting rod (9).