Forestry pruning and peeling device
By using two sets of motors and gears to drive the lifting screw, the problems of non-horizontal cutting blades and inaccurate telescopic control in existing pruning and peeling tools are solved, achieving stable cutting and precise control of the cutting blades, and improving the effectiveness of forestry pruning and peeling tools.
Patent Information
- Application Number
- CN202520414620.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing forestry pruning and peeling tools, when using a single hydraulic push rod and motor drive, have difficulty ensuring the horizontal position of the pruning shears and the extension locking effect, and the extension amount is not precisely controlled.
Two sets of motors and gears are used to drive the lifting screw to ensure the horizontal movement of the cutter. The positioning slot and positioning plate fix the position of the equipment box, so as to achieve precise control of the lifting distance and locking effect of the cutter.
This ensures that the cutter remains horizontal and securely fixed during movement, preventing positional shifts and enabling precise control and stable cutting, thereby improving cutting efficiency and accuracy.
Smart Images

Figure CN223816557U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of forestry technology, specifically relating to a forestry pruning and bark-removing device. Background Technology
[0002] In forestry management, pruning and debarking are two crucial techniques that play a significant role in optimizing tree growth, improving timber quality, and preventing pests and diseases. Pruning, by removing dead, diseased, weak, and overly dense branches, not only improves ventilation and light penetration within the tree canopy and reduces nutrient waste, but also promotes healthy trunk growth and reduces the risk of wind damage and pests and diseases, laying a solid foundation for the formation of high-quality timber. For already harvested logs, debarking can reduce transportation weight, prevent mold growth, and improve the efficiency of subsequent processing and the economic value of the timber.
[0003] A known authorized patent with application number 202221629163.2 discloses an insect-proof pruning and bark-removing tool for forestry tree maintenance. The tool includes a sleeve, a handle mounted on the middle of the lower surface of the sleeve, a handle mounted on the bottom of the outer surface of the sleeve, a toothed plate slidably disposed inside the sleeve, and an mounting plate mounted on the top of the outer surface of the sleeve. A drive shaft is rotatably connected to the right side of the inner side of the mounting plate, and a drive gear is sleeved on the middle of the outer surface of the drive shaft. This insect-proof pruning and bark-removing tool for forestry tree maintenance uses a hydraulic push rod to raise and lower a moving plate, which in turn raises and lowers the pruning blades located at the bottom. This allows for adjustment of the distance between the two sets of pruning blades, enabling the user to adjust the distance according to the desired branch size. This allows the device to prune branches of different sizes, increasing its applicability.
[0004] However, in implementing the relevant technology, the following problems were found in the above technical solution: When in use, it is difficult to guarantee the locking effect after extension and retraction by driving the extension and retraction of the device through a drive motor. Furthermore, it is difficult to guarantee that the trimmer is always in a horizontal state when using a single hydraulic push rod to push the trimmer, and it is also difficult to control the extension amount accurately.
[0005] Therefore, a forestry pruning and bark-removing device is proposed to solve the above problems. Utility Model Content
[0006] This utility model proposes a forestry pruning and peeling tool, which solves the problems in related technologies where the extension and retraction of the device is driven by a motor, making it difficult to ensure the locking effect after extension and retraction. Furthermore, using a single hydraulic push rod to push the pruning shears makes it difficult to ensure that the pruning shears are always in a horizontal state and to control the extension amount with precision.
[0007] The technical solution of this utility model is as follows: A forestry pruning and peeling tool, comprising: an equipment box, a handle, a top rod, a clamping column and a blade holder, wherein a connecting screw is fixedly connected to the bottom end of the clamping column, and the top end of the handle is threadedly connected to the outer wall of the connecting screw;
[0008] A top rod is fixedly connected to the top of the clamping column, and a movable block is fixedly connected to the side wall of the equipment box. The movable block is slidably connected to the inner wall of the clamping column.
[0009] A cutting blade is inserted into the inner wall of the blade holder. The blade holder is slidably connected to the inside of the equipment box. A top plate is fixedly connected to the inside of the equipment box. A first gear is rotatably connected to the inner wall of the top plate. A lifting screw is fixedly connected to the top of the first gear. The lifting screw is threadedly connected to the inner wall of the blade holder.
[0010] Preferably, a limiting plate is fixedly connected to the inner wall of the device box, and a combination gear is rotatably connected to the inner wall of the limiting plate. The output gear of the combination gear meshes with the first gear. A motor is fixedly connected to the inner bottom wall of the device box, and a second gear is fixedly connected to the output end of the motor. The second gear meshes with the input gear of the combination gear.
[0011] Preferably, the outer wall of the clamping column is provided with a positioning groove, the outer wall of the positioning groove is engaged with a positioning piece, the inner wall of the positioning piece is rotatably connected with a clamping bolt, and the end of the clamping bolt is rotatably connected to the inner wall of the moving block.
[0012] Preferably, the width of the cutter is smaller than the width of the cutter holder, and the top rod has a cutting groove inside, the shape of which corresponds to the shape of the cutter.
[0013] Preferably, the top rod is internally rotatably connected to two sets of sliding wheels, which are arranged in an arc shape and located on both sides of the cutting groove.
[0014] Preferably, the grip includes a connecting rod, which is threadedly connected to a connecting screw. A bottom rod is sleeved on the inner wall of the connecting rod, and a locking cap is threaded to the outer wall of the connecting rod. The bottom rod is sleeved on the inner wall of the locking cap, and a handle is fixedly connected to the end of the bottom rod.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] Two sets of motors and gear sets drive the lifting screws, causing the cutter to move. The two sets of lifting screws ensure that the cutter remains horizontal during movement, and the lifting distance of the cutter can be accurately controlled by controlling the motors. The position of the equipment box is fixed by the positioning groove and positioning plate, making the fixation more secure and preventing the position of the equipment box from shifting. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of the device box of this utility model;
[0020] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;
[0021] Figure 4 This is a side view of the device box of this utility model.
[0022] Figure 5 This is a cross-sectional structural diagram of the clamping column of this utility model.
[0023] In the diagram: 1. Equipment box; 2. Handle; 201. Connecting rod; 202. Base rod; 203. Locking cap; 204. Handle; 3. Connecting screw; 4. Top rod; 5. Cutting groove; 6. Sliding wheel; 7. Clamping column; 8. Positioning plate; 9. Positioning groove; 10. Moving block; 11. Clamping bolt; 12. Tool holder; 13. Top plate; 14. Limiting plate; 15. First gear; 16. Lifting screw; 17. Combination gear; 18. Second gear; 19. Motor; 20. Cutting blade. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0025] Implementation
[0026] Please see Figure 1 -5, a forestry pruning and peeling tool, comprising: a device box 1, a handle 2, a top rod 4, a clamping post 7 and a knife holder 12, wherein the bottom end of the clamping post 7 is fixedly connected to a connecting screw 3, and the top end of the handle 2 is threadedly connected to the outer wall of the connecting screw 3.
[0027] A top rod 4 is fixedly connected to the top of the clamping column 7, and a movable block 10 is fixedly connected to the side wall of the equipment box 1. The movable block 10 is slidably connected to the inner wall of the clamping column 7.
[0028] A cutting blade 20 is inserted into the inner wall of the blade holder 12. The blade holder 12 is slidably connected to the inside of the equipment box 1. A top plate 13 is fixedly connected to the inside of the equipment box 1. A first gear 15 is rotatably connected to the inner wall of the top plate 13. A lifting screw 16 is fixedly connected to the top of the first gear 15. The lifting screw 16 is threadedly connected to the inner wall of the blade holder 12.
[0029] The technical solution provided in this embodiment is as follows: First, determine the height of the branch to be pruned. Then, adjust the length of the handle 2 and fix the length of the handle 2 by rotating the locking cap 203. Next, observe the approximate diameter of the branch. Then, move the device box 1 so that the distance between the cutter 20 and the top rod 4 is slightly larger than the diameter of the branch. Then, rotate the clamping bolt 11 to firmly insert the positioning piece 7 into the positioning groove 9 and clamp the moving block 9 and the clamping column 7 to fix the device box 1. The top rod 4 and the cutter 20 are placed over the branch by the handle 2. Next, start the motor 19. The motor 19 drives the second gear 18 and drives the combined gear 17. The combined gear 17 drives the first gear 15 to rotate. The first gear 15 drives the lifting screw 16 to rotate. The lifting screw 16 lifts the cutter holder 12. 2. Raise the cutting blade 20 upwards to cut the branch. During cutting, the arc-shaped arrangement of the rotating wheels 6 prevents the branch from accidentally falling off the top rod 4. The cooperation between the cutting groove 5 and the cutting blade 20 prevents some wood fibers from remaining connected to the branch due to incomplete cutting. The width of the blade holder 12 and the setting of the cutting blade 20 prevent the branch from getting caught in the blade. When it is necessary to cut the bark, remove the handle 2. When the top rod 4 and the cutting blade 20 are fitted on the outer wall of the branch, start the motor 19. The motor 19 raises the blade holder 12. After the cutting blade 20 penetrates a certain distance into the branch, turn off the motor 19. Then rotate the device. The arc-shaped array of the sliding wheels 6 prevents the branch from accidentally falling off and reduces friction when the device rotates. After rotating one end, reverse the motor 19 and remove the device to complete the bark cutting operation.
[0030] Furthermore, a limiting plate 14 is fixedly connected to the inner wall of the device box 1, and a combination gear 17 is rotatably connected to the inner wall of the limiting plate 14. The output gear of the combination gear 17 meshes with the first gear 15. A motor 19 is fixedly connected to the inner bottom wall of the device box 1, and a second gear 18 is fixedly connected to the output end of the motor 19. The second gear 18 meshes with the input gear of the combination gear 17.
[0031] Specifically, by setting the limit plate 14, the excessive lowering of the cutter holder 12 can be avoided, which would cause the cutter holder 12 to come into contact with the first gear 15, thus preventing damage to the first gear 15. Furthermore, by the meshing of multiple gears of different sizes, the output torque of the motor 19 is increased, allowing the cutter 20 to cut more branches.
[0032] Furthermore, the outer wall of the clamping column 7 is provided with a positioning groove 9, the outer wall of the positioning groove 9 is engaged with a positioning piece 8, the inner wall of the positioning piece 8 is rotatably connected with a clamping bolt 11, and the end of the clamping bolt 11 is rotatably connected to the inner wall of the moving block 10.
[0033] Specifically, the positioning groove 9 increases the friction between the positioning piece 8 and the clamping column 7, thereby increasing the fixing strength of the equipment box 1 and preventing the equipment box 1 from shifting after fixing.
[0034] Furthermore, the width of the cutter 20 is smaller than the width of the cutter holder 12, and the inside of the push rod 4 is provided with a cutting groove 5, the shape of which corresponds to the shape of the cutter 20.
[0035] Specifically, the arrow shape of the cutting blade 20 makes the blade angle smaller, and it works in conjunction with the blade holder 12 to prevent the blade from getting stuck when cutting branches.
[0036] Furthermore, the top rod 4 is internally connected to two sets of sliding wheels 6, which are arranged in an arc shape and located on both sides of the cutting groove 5.
[0037] Specifically, the curved sliding wheel 6 prevents branches from accidentally slipping out of the cutting area when the device is cutting branches, and the sliding wheel 6 also reduces friction during bark removal, making the process faster.
[0038] Furthermore, the grip 2 includes a connecting rod 201, which is threadedly connected to the connecting screw 3. A bottom rod 202 is sleeved on the inner wall of the connecting rod 201, and a locking cap 203 is threadedly connected to the outer wall of the connecting rod 201. The bottom rod 202 is sleeved on the inner wall of the locking cap 203, and a grip 204 is fixedly connected to the end of the bottom rod 202.
[0039] Specifically, the device can extend a longer distance by using the handle 2, allowing branches of various heights to be cut, and the threaded connection enables timely disassembly.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A forestry pruning and bark-peeling tool, comprising: The equipment box (1), gripping rod (2), top rod (4), clamping column (7) and tool holder (12) are characterized in that the bottom end of the clamping column (7) is fixedly connected to a connecting screw (3), and the top end of the gripping rod (2) is threaded to the outer wall of the connecting screw (3); The top of the clamping column (7) is fixedly connected to a top rod (4), and the side wall of the equipment box (1) is fixedly connected to a moving block (10), which is slidably connected to the inner wall of the clamping column (7). A cutting blade (20) is inserted into the inner wall of the blade holder (12). The blade holder (12) is slidably connected to the inside of the equipment box (1). A top plate (13) is fixedly connected to the inside of the equipment box (1). A first gear (15) is rotatably connected to the inner wall of the top plate (13). A lifting screw (16) is fixedly connected to the top of the first gear (15). The lifting screw (16) is threadedly connected to the inner wall of the blade holder (12).
2. The forestry pruning and bark-removing tool according to claim 1, characterized in that: A limiting plate (14) is fixedly connected to the inner wall of the device box (1). A combination gear (17) is rotatably connected to the inner wall of the limiting plate (14). The output gear of the combination gear (17) meshes with the first gear (15). A motor (19) is fixedly connected to the inner bottom wall of the device box (1). A second gear (18) is fixedly connected to the output end of the motor (19). The second gear (18) meshes with the input gear of the combination gear (17).
3. A forestry pruning and bark-removing tool according to claim 1, characterized in that: The outer wall of the clamping column (7) is provided with a positioning groove (9), and a positioning piece (8) is engaged with the outer wall of the positioning groove (9). A clamping bolt (11) is rotatably connected to the inner wall of the positioning piece (8), and the end of the clamping bolt (11) is rotatably connected to the inner wall of the moving block (10).
4. A forestry pruning and bark-removing tool according to claim 1, characterized in that: The width of the cutter (20) is smaller than the width of the cutter holder (12), and the inside of the top rod (4) is provided with a cutting groove (5), the shape of which corresponds to the shape of the cutter (20).
5. A forestry pruning and bark-removing tool according to claim 1, characterized in that: The top rod (4) is internally connected to two sets of sliding wheels (6), which are arranged in an arc shape and located on both sides of the cutting groove (5).
6. A forestry pruning and bark-removing tool according to claim 1, characterized in that: The grip (2) includes a connecting rod (201), which is threadedly connected to a connecting screw (3). A bottom rod (202) is sleeved on the inner wall of the connecting rod (201), and a locking cap (203) is threadedly connected to the outer wall of the connecting rod (201). The bottom rod (202) is sleeved on the inner wall of the locking cap (203), and a handle (204) is fixedly connected to the end of the bottom rod (202).
Citation Information
Patent Citations
Insect-proof pruning and peeling device for forestry tree maintenance
CN217742385U