Tree pruning machine for forestry engineering
By introducing a power control mechanism and a stable grip spacing adjustment structure into the tree trimmer, the stability problem when used by personnel with different arm spans has been solved, and the trimmer has achieved wide applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MULAN COUNTY JIANGUO FOREST FARM
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
Existing tree trimmers lack a grip adjustment mechanism that allows for easy adjustment and stability, resulting in varying stability for users with different arm spans, which limits the application scenarios of the trimmers.
A tree trimmer for forestry engineering was designed. Through the cooperation of a power control mechanism, a storage tube, an electric telescopic rod, an extension rod, an electric saw, a fixed frame, a connecting sliding block, a first grip, a sliding tube, a limit guide rod, a return spring, a pull plate, a limit post, and a limit groove, the grip spacing can be adjusted to meet the needs of people with different arm spans.
This increases the stability and convenience of the trimmer, enabling it to meet the needs of users with different arm spans and expanding its application scenarios.
Smart Images

Figure CN224205779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tree pruning machine, specifically a tree pruning machine for forestry engineering, and belongs to the field of tree pruning technology. Background Technology
[0002] Tree pruning involves the selective removal or trimming of tree branches and leaves using specialized tools to adjust tree shape, promote growth, enhance aesthetics, prevent pests and diseases, and ensure public safety. In forestry projects, tree pruning machines are used to control the uniform height of large areas of trees, remove dead and diseased branches, prune branches that obstruct traffic or power facilities, and shape trees in landscape design, thereby improving pruning efficiency and operational safety.
[0003] The existing utility model with authorization announcement number CN220712173U discloses a tree pruning machine for forestry engineering. It abandons the original support rod and adopts a bottom support rod, an adjusting rod and an adjusting component to replace the original support rod. The position of the adjusting rod can be flexibly adjusted through the adjusting component, thereby allowing the placement of the saw chain and scissor blades to be flexibly adjusted, improving flexibility and applicability.
[0004] While the above technical solutions improve the flexibility and applicability of the tree pruning machine, they fail to consider the varying arm spans of people of different heights and lack a convenient and stable grip adjustment structure. This results in inconsistent stability for users with different arm spans, thus limiting the machine's application scenarios. Therefore, this paper proposes a tree pruning machine for forestry engineering. Utility Model Content
[0005] This utility model proposes a tree pruning machine for forestry engineering to solve the problem that the existing technology lacks a grip adjustment structure that can be easily adjusted to stabilize the grip structure, resulting in different stability when used by people with different arm spans, and thus limiting the application scenarios of the pruning machine.
[0006] This utility model is achieved through the following technical solution: a tree pruning machine for forestry engineering, including a power control mechanism, a storage tube is provided on the outside of the power control mechanism, an electric telescopic rod is fixedly connected to the inner wall of the storage tube, an extension rod is slidably connected inside the storage tube, an electric saw is fixedly connected to the end of the extension rod away from the storage tube, a stable grip spacing adjustment mechanism is provided on the outside of the storage tube, and the electric telescopic rod and the electric saw are both electrically connected to the power control mechanism through wires;
[0007] The stable grip spacing adjustment mechanism includes a fixed frame, inside which a connecting sliding block and a sliding tube are slidably connected. On the outside of the fixed frame, a first grip and a pull plate are respectively provided. Several identical limiting grooves are opened on the left side of the fixed frame. Two limiting posts and a limiting guide rod are fixedly connected to the right side of the pull plate. A return spring is sleeved on the outer surface of the limiting guide rod. A second grip is fixedly connected to the front of the power control mechanism.
[0008] Specifically, the end of the storage tube near the power control mechanism is fixedly connected to the back of the power control mechanism; the end of the extension rod near the electric telescopic rod is fixedly connected to the telescopic end of the electric telescopic rod; the inner wall of the fixing frame is fixedly connected to the outer surface of the storage tube; the right end of the sliding tube is fixedly connected to the left side of the connecting sliding block; the bottom surface of the first handle is fixedly connected to the upper surface of the connecting sliding block; the right side of the pull plate is in contact with the left side of the fixing frame; the outer surface of the limiting guide rod is slidably connected to the inside of the sliding tube; the outer surface of each limiting post is in contact with the inner wall of the limiting groove; the two ends of the return spring are in contact with the inner wall of the sliding tube and the outer surface of the limiting guide rod, respectively; a transparent protective plate is fixedly connected to the back of the fixing frame; and the inner wall of the transparent protective plate is fixedly connected to the outer surface of the storage tube.
[0009] Furthermore, a limiting slide post is fixedly connected to the bottom surface of the connecting sliding block, and the outer surface of the limiting slide post is slidably connected to the inside of the fixing frame.
[0010] The first grip has a first anti-slip sleeve fixedly connected to its outer surface, and the outer surface of the first anti-slip sleeve has a plurality of identical first anti-slip protrusions fixedly connected to its outer surface.
[0011] Preferably, a pull rod is fixedly connected to the left side of the pull plate, and a second anti-slip sleeve is fixedly connected to the outer surface of the pull rod.
[0012] Furthermore, a third anti-slip sleeve is fixedly connected to the outer surface of the second grip, and a plurality of identical second anti-slip protrusions are fixedly connected to the outer surface of the third anti-slip sleeve.
[0013] This utility model provides a tree pruning machine for forestry engineering, which has the following beneficial effects:
[0014] This forestry engineering tree trimmer, through the coordinated operation of a power control mechanism, a storage tube, an electric telescopic rod, an extension rod, an electric saw, a fixed frame, a connecting sliding block, a first handle, a sliding tube, a limiting guide rod, a return spring, a pull plate, a limiting post, a limiting groove, and a second handle, allows the pull plate to be pulled away from the fixed frame. The limiting post then moves away from the limiting groove, while the limiting guide rod and sliding tube compress the return spring. The first handle then slides back and forth within the fixed frame along with the connecting sliding block until the distance between the first and second handles is suitable for a person with a suitable arm span. Releasing the pull plate allows the limiting post to re-insert into the limiting groove near the original position due to the return spring's rebound. This increases the stability of the entire trimmer, making it suitable for users with different arm spans and increasing its usability across various scenarios. It avoids the problem of inconsistent stability due to the lack of a convenient and adjustable grip structure, which limits the application scenarios of the trimmer. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a tree pruning machine for forestry engineering according to this utility model;
[0016] Figure 2 This is a cross-sectional view of the storage tube of this utility model;
[0017] Figure 3 This is a cross-sectional view of the fixing frame of this utility model;
[0018] Figure 4 This is a bottom view of the connecting sliding block structure of this utility model;
[0019] Figure 5 This is a side view sectional diagram of the sliding tube structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the power control mechanism of this utility model.
[0021] Explanation of reference numerals in the attached figures
[0022] 1. Power control mechanism; 2. Storage tube; 3. Electric telescopic rod; 4. Extension rod; 5. Electric saw;
[0023] 6. Stable grip spacing adjustment mechanism; 601. Fixing frame; 602. Connecting sliding block; 603. First grip; 604. Sliding tube; 605. Limiting guide rod; 606. Return spring; 607. Pull plate; 608. Limiting post; 609. Limiting groove; 610. Second grip;
[0024] 7. Transparent protective plate; 8. Limiting slide post; 9. First anti-slip sleeve; 10. First anti-slip protrusion; 11. Pull rod; 12. Second anti-slip sleeve; 13. Third anti-slip sleeve; 14. Second anti-slip protrusion. Detailed Implementation
[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0026] Please see Figures 1-6 This utility model embodiment provides a tree trimming machine for forestry engineering, including a power control mechanism 1. The power control mechanism 1 is an existing structure with power supply and control functions. The internal control structure can use an MCU or an Arduino series, which is small in size, low in cost, and low in power consumption, making it suitable for miniaturization and embedded applications. It can control multiple components through programming. It can be connected to the control terminals of each electrical component through digital output pins and control the power of each component through analog output pins. Specific control logic and timing can be implemented by writing code. Here, the power control mechanism 1 is mainly used as a power and control structure for illustration. A storage tube 2 is set on the outside of the power control mechanism 1. An electric telescopic rod 3 is fixedly connected to the inner wall of the storage tube 2. An extension rod 4 is slidably connected inside the storage tube 2. An electric saw 5 is fixedly connected to the end of the extension rod 4 away from the storage tube 2. The electric saw 5 is a structure for trimming branches, which is also a structure of existing mature technology. The appropriate model and size can be selected according to actual use needs. Customization is also possible; this is mainly for illustration. A stable grip spacing adjustment mechanism 6 is provided on the outside of the storage tube 2. The electric telescopic rod 3 and the electric saw 5 are electrically connected to the power control mechanism 1 via wires. The stable grip spacing adjustment mechanism 6 includes a fixed frame 601. A connecting sliding block 602 and a sliding tube 604 are slidably connected inside the fixed frame 601. The end of the storage tube 2 near the power control mechanism 1 is fixedly connected to the back of the power control mechanism 1. The end of the extension rod 4 near the electric telescopic rod 3 is fixedly connected to the telescopic end of the electric telescopic rod 3. The inner wall of the fixed frame 601 is fixedly connected to the outer surface of the storage tube 2. The right end of the sliding tube 604 is fixedly connected to the left side of the connecting sliding block 602. A transparent protective plate 7 is fixedly connected to the back of the fixed frame 601. The inner wall of the transparent protective plate 7 is fixedly connected to the outer surface of the storage tube 2. By setting the transparent protective plate 7, it can be connected to the storage tube 2 and the fixed frame 601 respectively, which can prevent the branches that fly out when cutting branches from hitting the hand holding the entire trimmer.
[0027] Please refer to this carefully. Figure 1, Figure 3 and Figure 4 The outer side of the fixing frame 601 is provided with a first handle 603 and a pull plate 607. The bottom surface of the first handle 603 is fixedly connected to the upper surface of the connecting sliding block 602. The right side of the pull plate 607 is in contact with the left side of the fixing frame 601. Several identical limiting grooves 609 are provided on the left side of the fixing frame 601. The bottom surface of the connecting sliding block 602 is fixedly connected to a limiting sliding post 8. The outer surface of the limiting sliding post 8 is slidably connected to the inside of the fixing frame 601. By setting the limiting sliding post 8, it can slide back and forth in a directional manner inside the fixing frame 601, thereby increasing the directional and stable sliding of the connecting sliding block 602 in the fixing frame 601.
[0028] Please refer to this carefully. Figure 3 , Figure 4 and Figure 5 Two limiting posts 608 and a limiting guide rod 605 are fixedly connected to the right side of the pull plate 607. The outer surface of the limiting guide rod 605 is slidably connected to the inside of the sliding tube 604. The outer surface of each limiting post 608 is in contact with the inner wall of the limiting groove 609. A first anti-slip sleeve 9 is fixedly connected to the outer surface of the first grip 603. Several identical first anti-slip protrusions 10 are fixedly connected to the outer surface of the first anti-slip sleeve 9. By setting the first anti-slip protrusions 10, the anti-slip properties of the outer surface of the first anti-slip sleeve 9 can be increased. By setting the first anti-slip sleeve 9 and the first anti-slip protrusions 10, the anti-slip properties of the outer surface of the first grip 603 can be increased together.
[0029] Please refer to this carefully. Figure 1 , Figure 3 , Figure 4 and Figure 5 A return spring 606 is sleeved on the outer surface of the limiting guide rod 605. The two ends of the return spring 606 are in contact with the inner wall of the sliding tube 604 and the outer surface of the limiting guide rod 605, respectively. A pull rod 11 is fixedly connected to the left side of the pull plate 607. A second anti-slip sleeve 12 is fixedly connected to the outer surface of the pull rod 11. By setting the pull rod 11, it is convenient to pull the pull plate 607, the limiting post 608 and the limiting guide rod 605 away from the fixed frame 601, thereby facilitating the subsequent movement and adjustment of the relative position of the connecting sliding block 602 in the fixed frame 601. By setting the second anti-slip sleeve 12, the anti-slip property of the outer surface of the pull rod 11 can be increased.
[0030] Please refer to this carefully. Figure 1 and Figure 6The power control mechanism 1 has a second grip 610 fixedly connected to its front side. The outer surface of the second grip 610 is fixedly connected to a third anti-slip sleeve 13. The outer surface of the third anti-slip sleeve 13 is fixedly connected to several identical second anti-slip protrusions 14. By setting the second anti-slip protrusions 14, the anti-slip properties of the outer surface of the third anti-slip sleeve 13 can be increased. By setting the third anti-slip sleeve 13 and the second anti-slip protrusions 14, the anti-slip properties of the outer surface of the second grip 610 can be increased together.
[0031] When using this utility model: First, place the entire trimmer on the ground without starting the electric saw 5. The operator adjusts the distance between the first handle 603 and the second handle 610 according to their own arm span. When adjusting the distance, the pull plate 607 is pulled away from the fixed frame 601 by pulling the pull rod 11. The limiting post 608 moves away from the inside of the limiting groove 609. At the same time, the limiting guide rod 605 and the sliding tube 604 squeeze the return spring 606. Then, the first handle 603 slides back and forth inside the fixed frame 601 along with the connecting sliding block 602.
[0032] Once the distance between the first grip 603 and the second grip 610 is sufficient for the user with the corresponding arm span, the lever 11 is released. Under the rebound of the return spring 606, the limiting post 608 is reinserted into the limiting groove 609 near that position. This increases the stability of holding the entire trimmer, enabling it to be compatible with users of different arm spans and making the trimmer more convenient to use in various scenarios.
[0033] Afterwards, the user holds the first handle 603 and the second handle 610 with both hands respectively, and controls the electric telescopic rod 3 to the appropriate telescopic length by operating the power control mechanism 1. Then, the user can start the chainsaw 5 by operating the power control mechanism 1 to use the pruning machine. The design of the entire forestry engineering tree pruning machine effectively solves the problem that the lack of a grip adjustment structure that can be easily adjusted and stabilized results in different stability when used by people with different arm spans, which in turn limits the application scenarios of the pruning machine.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A tree trimmer for forestry engineering, comprising a power control mechanism (1), characterized in that: A storage tube (2) is provided on the outside of the power control mechanism (1). An electric telescopic rod (3) is fixedly connected to the inner wall of the storage tube (2). An extension rod (4) is slidably connected inside the storage tube (2). An electric saw (5) is fixedly connected to one end of the extension rod (4) away from the storage tube (2). A stable grip spacing adjustment mechanism (6) is provided on the outside of the storage tube (2). The electric telescopic rod (3) and the electric saw (5) are both electrically connected to the power control mechanism (1) through wires. The stable grip spacing adjustment mechanism (6) includes a fixed frame (601), with a connecting sliding block (602) and a sliding tube (604) slidably connected inside the fixed frame (601). A first grip (603) and a pull plate (607) are respectively provided on the outside of the fixed frame (601). Several identical limiting grooves (609) are opened on the left side of the fixed frame (601). Two limiting posts (608) and a limiting guide rod (605) are fixedly connected to the right side of the pull plate (607). A return spring (606) is sleeved on the outer surface of the limiting guide rod (605). A second grip (610) is fixedly connected to the front of the power control mechanism (1).
2. The tree pruning machine for forestry engineering according to claim 1, characterized in that: The storage tube (2) is fixedly connected to the back of the power control mechanism (1) at one end, the extension rod (4) is fixedly connected to the telescopic end of the electric telescopic rod (3) at one end, the fixing bracket (601) is fixedly connected to the outer surface of the storage tube (2), the right end of the sliding tube (604) is fixedly connected to the left side of the connecting sliding block (602), the bottom surface of the first handle (603) is fixedly connected to the upper surface of the connecting sliding block (602), and the right side of the pull plate (607) is fixedly connected to the upper surface of the connecting sliding block (602). The side is in contact with the left side of the fixing frame (601), the outer surface of the limiting guide rod (605) is slidably connected to the inside of the sliding tube (604), the outer surface of each limiting post (608) is in contact with the inner wall of the limiting groove (609), the two ends of the return spring (606) are in contact with the inner wall of the sliding tube (604) and the outer surface of the limiting guide rod (605) respectively, and a transparent protective plate (7) is fixedly connected to the back of the fixing frame (601), and the inner wall of the transparent protective plate (7) is fixedly connected to the outer surface of the storage tube (2).
3. A tree pruning machine for forestry engineering according to claim 1, characterized in that: The bottom surface of the connecting sliding block (602) is fixedly connected to a limiting sliding column (8), and the outer surface of the limiting sliding column (8) is slidably connected to the inside of the fixing frame (601).
4. A tree pruning machine for forestry engineering according to claim 1, characterized in that: The outer surface of the first grip (603) is fixedly connected to a first anti-slip sleeve (9), and the outer surface of the first anti-slip sleeve (9) is fixedly connected to a plurality of identical first anti-slip protrusions (10).
5. A tree pruning machine for forestry engineering according to claim 1, characterized in that: A pull rod (11) is fixedly connected to the left side of the pull plate (607), and a second anti-slip sleeve (12) is fixedly connected to the outer surface of the pull rod (11).
6. A tree pruning machine for forestry engineering according to claim 1, characterized in that: The outer surface of the second grip (610) is fixedly connected to a third anti-slip sleeve (13), and the outer surface of the third anti-slip sleeve (13) is fixedly connected to a plurality of identical second anti-slip protrusions (14).
Citation Information
Patent Citations
Tree pruning machine for forestry engineering
CN220712173U