Insect-proof pruning and peeling device for forestry

By designing an insect-proof pruning and bark-removing tool, which utilizes a rotating chip-proof baffle and retractable cutter head on the electric drill body and gear set, the problems of wood chips flying and frequent drill bit replacements are solved, thus improving the efficiency and safety of forestry pruning and bark removal.

CN224178733UActive Publication Date: 2026-05-01陈旭东
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
陈旭东
Filing Date
2025-03-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing forestry pruning and bark removal tools suffer from problems such as sawdust scattering, the need for frequent drill bit replacements, and low efficiency, especially when dealing with small crevices and tree cavities.

Method used

A pest-proof pruning and peeling tool was designed. It uses an electric drill body to drive a gear set to rotate, combined with a magnetic shielding mechanism and a retractable second cutter head, to achieve sawdust shielding and flexible cutter head switching, avoiding sawdust splashing and frequent drill bit replacement.

Benefits of technology

It improved work efficiency, reduced sawdust splashing and the frequency of drill bit replacement, and enhanced the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of forestry, and discloses an insect-proof pruning and peeling device for forestry, which comprises an electric drill body, a first tool bit and an electric drill shaft lever, and the first tool bit and the electric drill shaft lever are mutually fixed; the motor in the electric drill body drives the electric drill shaft rod to drive the gear set to rotate, the gear set drives the first tool bit and the second tool bit to rotate synchronously, the scrap-proof baffle is rotated to the position above the first tool bit and fixed through the second magnet, and therefore the situation that wood chips are splashed to the face is reduced; meanwhile, the grab handle is pushed to enable the sliding block to drive the second tool bit to stretch out towards the outside of the square sleeve, so that the second tool bit can be used for working tiny tree holes and cracks, the tool bit or an electric drill does not need to be replaced frequently, the working efficiency is improved, and convenience is brought; and accidental injury caused by the second tool bit on the side edge is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of forestry technology, specifically to a forestry insect-proof pruning and bark-removing device. Background Technology

[0002] In early forestry operations, bark removal and pruning relied primarily on manual labor, resulting in low efficiency, high labor intensity, and high costs. This was especially true for difficult-to-manage species like eucalyptus and oak, where traditional methods were insufficient for large-scale production. Bark is a natural barrier against pathogens and pests. Unpruned trees are susceptible to fungal and bacterial infections, leading to diseases like rot, and unpruned dead or diseased branches are prone to breakage and fall, threatening human and animal safety. Failure to prune and remove bark from fruit trees in a timely manner can lead to a decline in fruit quality. Forestry pruning and bark removal tools are suitable for various forestry pest control pruning and bark removal tasks. Existing tools typically involve handheld electric drills that use a blade to grind the bark for removal. However, when sanding bark, sawdust flies everywhere, and workers need to wear masks and goggles. Sanding ordinary bark requires a large drill bit, which cannot enter small tree holes or crevices, making sanding difficult. When pruning and peeling the bark from the same tree, it is necessary to switch between small and large drill bits, or two electric drills with different sized drill bits, which wastes time and is not convenient. Utility Model Content

[0003] The purpose of this invention is to provide a forestry pest-proof pruning and peeling tool that can block flying sawdust and does not require frequent replacement of drill bits of different sizes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a forestry insect-proof pruning and bark-peeling tool, comprising an electric drill body, a second cutter head, a first cutter head, and an electric drill shaft. The first cutter head and the electric drill shaft are fixed to each other. A cover is bolted to one side of the electric drill body near the first cutter head. A square sleeve is bolted to one side of the cover. A square groove drive shaft is rotatably connected inside the cover. A gear set is provided on one side of the square groove drive shaft. A slider is slidably connected to the inner wall of the square sleeve. The rotating shaft of the second cutter head and the slider are fixed to each other by a bearing. A spring is also fixed to the inner wall of the square sleeve, and the other end of the spring is fixed to the slider. A handle is bolted to the top of the slider. A square sliding rod is also bolted to the rotating shaft end of the second cutter head, and the square sliding rod is slidably connected to the inner wall of the square groove drive shaft. A shielding mechanism is also provided on the surface of the cover.

[0005] Preferably, the shielding mechanism includes a chip shield, a first magnet, and a second magnet. The chip shield is rotatably connected to the surface of the housing. The second magnet is fixed to the surface of the housing and close to the side of the first cutter head. The first magnet is fixed to the other side of the top surface of the housing. The top of the first magnet is designed to be inclined. A transparent plastic plate is also fixed to the surface of the chip shield.

[0006] Preferably, a slide is also bolted to the top of the electric drill body, and the handle is slidably connected to the inner wall of the slide.

[0007] Preferably, the top of the square sleeve is provided with a groove for the movement of the handle.

[0008] Preferably, the inner wall of the square groove drive shaft is square in shape, and the cross-section of the square slide rod is square in shape.

[0009] Preferably, the gear set consists of two bevel gears of the same size, one of which is fixed to the surface of the electric drill shaft, and the other bevel gear is fixed to the surface of the square groove drive shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention utilizes a motor within the drill body to drive the drill shaft, which in turn rotates a gear set. The gear set then drives the first and second cutting heads to rotate synchronously, rotating a chip-proof baffle above the first cutting head and securing it with a second magnet. This effectively shields the wood chips, reducing the likelihood of them splashing onto the face. Simultaneously, pushing the handle causes the slider to extend the second cutting head outwards from the square sleeve, allowing it to be used for working in small tree holes and crevices. This eliminates the need for frequent cutting head or drill replacements, improving work efficiency and convenience. When the second cutting head is idle, a spring pushes the slider to allow it to enter the square sleeve, preventing accidental injury from the second cutting head located on the side. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional structural diagram of the cover and square sleeve in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the second cutter head after it extends out in this utility model;

[0015] Figure 4 This is a cross-sectional structural diagram of the square groove drive shaft and slider of this utility model;

[0016] Figure 5This is a schematic diagram of the gear set and the electric drill shaft in this utility model;

[0017] Figure 6 This is a schematic diagram of the slider and square sliding rod in this utility model.

[0018] In the diagram: 1. Drill body; 2. Handle; 3. Chip guard; 4. Slide sleeve; 5. First cutter head; 6. Second cutter head; 7. Square sleeve; 8. Spring; 9. Gear set; 10. Slider; 11. First magnet; 12. Second magnet; 13. Square groove drive shaft; 14. Square slide rod; 15. Transparent plastic plate; 16. Drill shaft; 17. Cover. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-6As shown, a forestry pest-proof pruning and bark-peeling tool includes an electric drill body 1, a second cutter head 6, a first cutter head 5, and an electric drill shaft 16. The first cutter head 5 and the electric drill shaft 16 are fixed to each other. The electric drill shaft 16 is driven by an internal motor of the electric drill body 1. The electric drill body 1 is a handheld electric drill, which is in the prior art. Its internal structure and working method will not be described in detail. A cover 17 is bolted to the side of the electric drill body 1 near the first cutter head 5. A square sleeve 7 is bolted to one side of the cover 17. A square groove drive shaft 13 is rotatably connected inside the cover 17. A gear set 9 is provided on one side of the square groove drive shaft 13. The gear set 9 consists of two bevel gears of the same size. One bevel gear in the gear set 9 is fixed to the surface of the electric drill shaft 16, and the other bevel gear in the gear set 9 is fixed to the surface of the square groove drive shaft 13. The inner wall of the square groove drive shaft 13 is square in shape. A slider 10 is slidably connected to the inner wall of the square sleeve 7. The rotating shaft of the second cutter head 6 and the slider 10 are connected to each other by bearings. The second cutter head 6 is fixed so that it can rotate with the slider 10. At the same time, the slider 10 can also drive the second cutter head 6 to move together during its movement. The inside of the slider 10 is hollowed out to accommodate the head end of the square groove drive shaft 13. The inner wall of the square sleeve 7 is also fixed with a spring 8, and the other end of the spring 8 is fixed to the slider 10. The spring 8 is sleeved on the surface of the second cutter head 6 and does not contact the second cutter head 6. The top of the slider 10 is attached to a handle 2, which makes it easy for the operator to pick up the peeler and also makes it easy to push the slider 10 and the second cutter head 6. The top of the square sleeve 7 is provided with a groove for the handle 2 to move. The rotating shaft end of the second cutter head 6 is also attached to a square slide rod 14, which is slidably connected to the inner wall of the square groove drive shaft 13. The cross-section of the square slide rod 14 is square, so that the square slide rod 14 will not slip on the inner wall of the square groove drive shaft 13 during its rotation. The surface of the cover 17 is also provided with a shielding mechanism.

[0021] The shielding mechanism includes a chip shield 3, a first magnet 11, and a second magnet 12. The chip shield 3 is rotatably connected to the surface of the cover 17. The second magnet 12 is fixed to the surface of the cover 17 and close to the side of the first cutter head 5. The first magnet 11 is fixed to the other side of the top surface of the cover 17. The top of the first magnet 11 is designed to be inclined. A transparent plastic plate 15 is also fixed to the surface of the chip shield 3 for easy observation. The chip shield 3 is made of metal, specifically iron.

[0022] The top of the drill body 1 is also bolted with a slide 4, and the handle 2 is slidably connected to the inner wall of the slide 4. When the handle 2 is pushed or pulled by the worker, the handle 2 can slide along the inner wall of the slide 4, increasing the stability of the handle 2 during movement.

[0023] Working principle: When the drill body 1 is brought close to the tree bark to be cleaned, the drill body 1 is opened. The motor in the drill body 1 drives the drill shaft 16 to rotate the gear set 9. The drill shaft 16 drives the first cutter head 5 to rotate. The gear set 9 drives the square groove drive shaft 13, the square slide rod 14, and the second cutter head 6 to rotate. The chip guard 3 is rotated above the first cutter head 5. The bark cleaning can be observed through the transparent plastic plate 15 on the surface of the chip guard 3. The chip guard 3 is made of iron and is adsorbed onto the surface of the second magnet 12. When not in use, the chip guard 3 can be rotated open and adsorbed onto the surface of the first magnet 11. When small crevices and tree holes appear, push the handle 2. The handle 2 drives the slider 10 to move, and drives the square slide rod 14 and the second cutter head 6 to extend outward of the square sleeve 7. The second cutter head 6 can then be used to repair small crevices in the tree. Moreover, the square slide rod 14 can slide along the inner wall of the square groove drive shaft 13 and maintain normal power transmission to accommodate the movable second cutter head 6. When the second cutter head 6 is idle, release the handle 2. Due to the force of the spring 8 inside the square sleeve 7, the second cutter head 6 retracts into the square sleeve 7, avoiding injury caused by the worker's negligence in touching the second cutter head 6.

[0024] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forestry pest-proof pruning and bark-removing tool, comprising an electric drill body (1), a second cutter head (6), a first cutter head (5), and an electric drill shaft (16), characterized in that: The first cutting head (5) is fixed to the drill shaft (16). A cover (17) is bolted to the side of the drill body (1) near the first cutting head (5). A square sleeve (7) is bolted to one side of the cover (17). A square groove drive shaft (13) is rotatably connected inside the cover (17). A gear set (9) is provided on one side of the square groove drive shaft (13). A slider (10) is slidably connected to the inner wall of the square sleeve (7). The rotating shaft of the second cutting head (6) and the slider (10) are fixed to each other by bearings. A spring (8) is also fixed to the inner wall of the square sleeve (7). The other end of the spring (8) is fixed to the slider (10). A handle (2) is bolted to the top of the slider (10). A square slide rod (14) is also bolted to the rotating shaft end of the second cutting head (6). The square slide rod (14) is slidably connected to the inner wall of the square groove drive shaft (13). A shielding mechanism is also provided on the surface of the cover (17).

2. The forestry insect-proof pruning and bark-removing tool according to claim 1, characterized in that: The shielding mechanism includes a chip shield (3), a first magnet (11) and a second magnet (12). The chip shield (3) is rotatably connected to the surface of the cover (17). The second magnet (12) is fixed to the surface of the cover (17) and close to the side of the first cutter head (5). The first magnet (11) is fixed to the other side of the top surface of the cover (17). The top of the first magnet (11) is inclined. A transparent plastic plate (15) is also fixed to the surface of the chip shield (3).

3. A forestry insect-proof pruning and bark-removing tool according to claim 1, characterized in that: The top of the electric drill body (1) is also bolted with a slide (4), and the handle (2) is slidably connected to the inner wall of the slide (4).

4. A forestry insect-proof pruning and bark-removing tool according to claim 1, characterized in that: The top of the square sleeve (7) is provided with a groove for the movement of the handle (2).

5. A forestry insect-proof pruning and bark-removing tool according to claim 1, characterized in that: The inner wall of the square groove drive shaft (13) is square in shape, and the cross section of the square slide rod (14) is square in shape.

6. A forestry insect-proof pruning and bark-removing device according to claim 1, characterized in that: The gear set (9) consists of two bevel gears of the same size. One of the bevel gears in the gear set (9) is fixed to the surface of the electric drill shaft (16), and the other bevel gear in the gear set (9) is fixed to the surface of the square groove drive shaft (13).