Tree pruning device for forest fire prevention

Abstract

The utility model discloses a tree pruning device for forest fire prevention, and relates to the technical field of pruning devices, the tree pruning device comprises a mounting shell and a first motor fixed on the shell body of the mounting shell, the output end of the first motor is connected with a saw cutting system, one side of the mounting shell is provided with a protective sleeve, and the top wall of the end part of the protective sleeve is provided with a clamping hole; a clamping mechanism is arranged on the top wall of the mounting shell, an adjusting barrel is arranged on the other side of the mounting shell, and a length adjusting mechanism connected with the mounting shell is arranged in a barrel body of the adjusting barrel. By means of the length adjusting mechanism, the saw cutting system can extend to trim branches at higher positions, and the problem that an existing pruning structure is limited in extension length and cannot be adjusted is solved. According to the saw cutting system, the protective sleeve is arranged, the clamping hole is formed in the protective sleeve, under the action of the clamping mechanism, the situation that surrounding personnel are scratched due to the fact that the saw cutting system is accidentally touched is avoided, and the situation that potential safety hazards are caused due to the fact that the saw cutting system is lack of a protective structure is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of pruning devices, specifically a tree pruning device for forest fire prevention. Background Technology

[0002] Tree pruning devices (such as high-branch saws and pruning shears) can directly optimize forest structure by pruning tree branches, thereby reducing the risk of fire.

[0003] Chinese Patent Publication No. CN220274344U discloses a tree branch pruning device for forest resource management, comprising: a base, a box body fixedly installed on one side of the top of the base, a top plate fixedly installed on the top of the box body by screws, a crushing chamber fixedly installed on one side of the top of the top plate, a feeding bin fixedly installed on the top of the crushing chamber, a guide plate fixedly installed on the outer side of the feeding bin, and two crushing teeth rotatably mounted inside the crushing chamber via bearings. This utility model provides a tree branch pruning device for forest resource management that guides pruned branches into the feeding bin through the guide plate. The rotation of a first motor drives gears to rotate. Due to the meshing of the two gears, the two crushing teeth rotate, effectively crushing the pruned branches and leaves. The crushed branches and leaves fall into the collection bin due to gravity, facilitating collection and improving practicality.

[0004] However, the tree branch pruning device disclosed in the above patent still has some inconveniences in actual application. Since it is used by the worker holding the handle to make the cutting blade contact the tree branch for pruning, the length of the handle is fixed and cannot be adjusted. This means that the worker can only control the length of the cutting blade, which is not convenient for pruning branches that are high up. In addition, the cutting blade is exposed and lacks a protective structure. If people around accidentally touch the cutting blade when it is not in use, they can easily be scratched, which poses a certain safety hazard. Utility Model Content

[0005] The purpose of this utility model is to provide a tree pruning device for forest fire prevention, in order to solve the problems mentioned in the background art. The existing pruning devices have limited control over the length of the cutting blade, making it inconvenient to prune branches at higher positions. Furthermore, the cutting blade is exposed and lacks a protective structure, which poses a certain safety hazard if people accidentally touch the cutting blade when it is not in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tree pruning device for forest fire prevention, comprising a mounting shell and a first motor fixed on the mounting shell, the output end of the first motor being connected to a sawing system, a protective sleeve being provided on one side of the mounting shell, a locking hole being provided on the top wall of the end of the protective sleeve, a locking mechanism being provided on the top wall of the mounting shell, and an adjusting cylinder being provided on the other side of the mounting shell, the cylinder body of which is provided with a length adjusting mechanism connected to the mounting shell.

[0007] Preferably, the clamping mechanism includes a right-angle plate fixedly installed on the top wall of the mounting shell, a fixing plate fixedly installed on the bottom side wall of the right-angle plate, a clamping rod movably installed through the plate body of the fixing plate, the top of the clamping rod movably passing through the top wall of the right-angle plate, and the rod body of the clamping rod being adapted to the cavity of the clamping hole.

[0008] Preferably, the clamping mechanism further includes a pressing block and a limiting spring disposed in the clamping cavity between the top wall of the right-angle plate and the fixed plate. The pressing block is fixedly sleeved on the surface of the rod body of the clamping rod, and the limiting spring is sleeved on the surface of the rod body of the clamping rod, with the limiting spring located on the side of the pressing block away from the fixed plate.

[0009] Preferably, a lever is fixedly connected to the top end of the lever, and the bottom end of the lever has a fan-shaped cross-section.

[0010] Preferably, the length adjustment mechanism includes a cavity formed inside the adjustment cylinder, a lead screw rotatably connected between the two side walls of the cavity, a movable plate screwed onto the surface of the lead screw, two movable rods fixedly installed on the side wall of the movable plate near the mounting shell, the other end of the movable rods movably penetrating through the wall of the adjustment cylinder and fixedly connected to the side wall of the mounting shell, a second motor fixed to one side wall of the adjustment cylinder, and the output end of the second motor connected to one end of the lead screw.

[0011] Preferably, two handles are fixedly installed on the surface of the regulating cylinder, and a locking block is fixedly installed on the bottom wall of the mounting shell. The surface of the locking block has a locking groove, and the groove cavity is adapted to the wall of the protective sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention allows workers to move the pruning device by holding a handle, starting the first motor to drive the sawing system to prune trees. When it is necessary to extend the sawing system, the second motor can be started to rotate the lead screw. Under the limiting and guiding action of the movable rod, the moving plate moves along the surface of the lead screw to the side away from the second motor, thereby causing the movable rod to extend out of the adjusting cylinder and drive the mounting shell to move. This allows the sawing system to extend to prune branches at higher positions, avoiding the problem of limited extension length and inability to adjust existing pruning structures. Furthermore, by setting up a protective sleeve with locking holes, when the pruning device is not in use, the protective sleeve can be aligned with the sawing system on the mounting shell and then moved towards the side closer to the adjusting cylinder, thus covering the sawing system. When the protective sleeve contacts the bottom end of the locking rod, it will squeeze the locking rod, causing it to move upward. During the upward movement of the locking rod, it will drive the squeezing block to squeeze the limiting spring. When the bottom shell of the protective sleeve is in the position of filling the locking slot, the locking rod is aligned with the locking hole. Under the elastic force of the limiting spring, the locking rod will automatically descend and automatically insert into the locking hole, thereby limiting and fixing the protective sleeve. When the pruning device is needed for pruning operations, the locking rod can be moved upward by the lever, causing the locking rod to be pulled out of the locking hole, and the protective sleeve can be removed from the mounting shell, avoiding interference with the normal use of the sawing system. Thus, the protective sleeve prevents nearby personnel from being scratched by accidentally touching the sawing system, and avoids safety hazards caused by the lack of a protective structure in the sawing system. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a tree pruning device for forest fire prevention according to this utility model.

[0015] Figure 2 This is a second-view structural schematic diagram of a tree pruning device for forest fire prevention according to the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a cross-sectional structural diagram of a tree pruning device for forest fire prevention according to this utility model.

[0018] In the diagram: 1. Adjusting cylinder; 2. Mounting shell; 3. First motor; 4. Sawing system; 5. Protective sleeve; 6. Clip hole; 7. Handle; 8. Second motor; 9. Movable rod; 10. Clip block; 11. Clip groove; 12. Right angle plate; 13. Fixing plate; 14. Pulling block; 15. Clip rod; 16. Pressing block; 17. Limiting spring; 18. Cavity; 19. Lead screw; 20. Moving plate. 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 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a tree pruning device for forest fire prevention, including a mounting shell 2 and a first motor 3 fixed to the mounting shell 2 by screws. A sawing system 4 is connected to the output end of the first motor 3. The sawing system 4 includes existing structures such as guide plates and saw chains. A protective sleeve 5 is provided on the right side of the mounting shell 2. A locking hole 6 is opened on the top wall of the end of the protective sleeve 5. A locking mechanism is provided on the top wall of the mounting shell 2. An adjusting cylinder 1 is provided on the other side of the mounting shell 2. A length adjusting mechanism connected to the mounting shell 2 is provided in the cylinder of the adjusting cylinder 1.

[0021] The clamping mechanism includes a right-angle plate 12 welded to the top wall of the mounting shell 2, a fixing plate 13 welded to the bottom right side wall of the right-angle plate 12, a clamping rod 15 that movably passes through the mounting plate 13, and the top of the clamping rod 15 that movably passes through the top wall of the right-angle plate 12. The rod of the clamping rod 15 is adapted to the cavity of the clamping hole 6, so that the clamping rod 15 can be raised and lowered and inserted into the clamping hole 6. The clamping mechanism also includes a pressing block 16 and a limiting spring 17 disposed in the cavity between the top wall of the right-angle plate 12 and the fixing plate 13. The pressing block 16 is welded and sleeved on the surface of the rod of the clamping rod 15, and the limiting spring 17 is sleeved on the surface of the rod of the clamping rod 15. The limiting spring 17 is located on the side of the pressing block 16 away from the fixing plate 13, so that the clamping rod 15 can automatically reset under the action of the limiting spring 17. The lever 14 is welded to the top of the lever 15. The bottom end of the lever 15 has a fan-shaped cross-section, which is intended to make the lever 15 rise when the fan-shaped bottom of the lever 15 is squeezed. The length adjustment mechanism includes a cavity 18 inside the adjustment cylinder 1. A lead screw 19 is rotatably connected between the left and right side walls of the cavity 18 via bearings. A movable plate 20 is screwed onto the surface of the lead screw 19. Two movable rods 9 are welded to the side wall of the movable plate 20 near the mounting shell 2. The other end of the movable rod 9 movably passes through the wall of the adjustment cylinder 1 and is welded to the side wall of the mounting shell 2. A second motor 8 is fixed to the left side wall of the adjustment cylinder 1 by screws. The output end of the second motor 8 is connected to the left end of the lead screw 19 via a coupling. Two handles 7 are welded to the surface of the cylinder of the adjustment cylinder 1. A locking block 10 is welded to the bottom wall of the mounting shell 2. A locking groove 11 is opened on the surface of the locking block 10. The groove of the locking groove 11 is adapted to the wall of the protective sleeve 5 so that the wall of the protective sleeve 5 can be inserted into the locking groove 11.

[0022] In use, the operator moves the pruning device by holding handle 7, and starts the first motor 3 to drive the sawing system 4 to prune the trees. When it is necessary to extend the sawing system 4, the second motor 8 can be started to drive the lead screw 19 to rotate. Under the limiting and guiding action of the movable rod 9, the moving plate 20 moves along the surface of the lead screw 19 to the side away from the second motor 8, so that the movable rod 9 extends out of the adjusting cylinder 1 and drives the mounting shell 2 to move. This allows the sawing system 4 to extend to prune branches at higher positions, avoiding the problem that the existing pruning structure has a limited extension length and cannot be adjusted. Furthermore, by setting a protective sleeve 5 and opening a locking hole 6 on the protective sleeve 5, when the pruning device is not in use, the protective sleeve 5 can be aligned with the sawing system 4 on the mounting shell 2 and then moved towards the side closer to the adjusting cylinder 1, thereby covering the sawing system 4 with the protective sleeve 5. When the protective sleeve 5 contacts the bottom end of the locking rod 15, it will squeeze the locking rod 15 and cause it to move upward. During the upward movement of the locking rod 15, it will drive the squeezing block 16 to squeeze the limiting spring 17. When the bottom shell of the protective sleeve 5 is in the position of filling the locking groove 11, the locking rod 15 is aligned with the locking hole 6, and the limiting spring... Under the elastic force of 17, the locking rod 15 automatically descends and automatically inserts into the locking hole 6, thereby limiting and fixing the protective sleeve 5. When the pruning device is needed for pruning operations, the locking rod 15 is moved upward by the lever 14, causing the locking rod 15 to be pulled out of the locking hole 6, so that the protective sleeve 5 can be removed from the mounting shell 2, avoiding affecting the normal use of the sawing system 4. Thus, under the action of the protective sleeve 5, the situation of surrounding personnel being scratched by accidentally touching the sawing system 4 is avoided, and the situation of the sawing system 4 being a safety hazard due to the lack of a protective structure is avoided.

[0023] 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.

[0024] 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 tree pruning device for forest fire prevention, comprising a mounting shell (2) and a first motor (3) fixed to the mounting shell (2), wherein the output end of the first motor (3) is connected to a sawing system (4), characterized in that: A protective sleeve (5) is provided on one side of the mounting shell (2), and a locking hole (6) is provided on the top wall of the end of the protective sleeve (5). A locking mechanism is provided on the top wall of the mounting shell (2), and an adjusting cylinder (1) is provided on the other side of the mounting shell (2). A length adjusting mechanism connected to the mounting shell (2) is provided in the cylinder of the adjusting cylinder (1).

2. The tree pruning device for forest fire prevention according to claim 1, wherein: The clamping mechanism includes a right-angle plate (12) fixedly installed on the top wall of the mounting shell (2). A fixing plate (13) is fixedly installed on the bottom side wall of the right-angle plate (12). A clamping rod (15) is movably installed through the plate body of the fixing plate (13). The top rod of the clamping rod (15) movably passes through the top wall of the right-angle plate (12). The rod of the clamping rod (15) is adapted to the cavity of the clamping hole (6).

3. The tree pruning device for forest fire prevention according to claim 2, wherein: The clamping mechanism further includes a pressing block (16) and a limiting spring (17) disposed in the cavity between the top wall of the right-angle plate (12) and the fixed plate (13). The pressing block (16) is fixedly sleeved on the surface of the rod of the clamping rod (15), and the limiting spring (17) is sleeved on the surface of the rod of the clamping rod (15), and the limiting spring (17) is located on the side of the pressing block (16) away from the fixed plate (13).

4. The tree trimming device for forest fire prevention according to claim 3, wherein: The top end of the lever (15) is fixedly connected to a lever (14), and the bottom end of the lever (15) has a fan-shaped cross-section.

5. The tree trimming device for forest fire prevention according to claim 4, wherein: The length adjustment mechanism includes a cavity (18) opened inside the adjustment cylinder (1). A lead screw (19) is rotatably connected between the two side walls of the cavity (18). A movable plate (20) is screwed onto the surface of the lead screw (19). Two movable rods (9) are fixedly installed on one side wall of the movable plate (20) near the mounting shell (2). The other end of the movable rod (9) movably passes through the wall of the adjustment cylinder (1) and is fixedly connected to the side wall of the mounting shell (2). A second motor (8) is fixed on one side wall of the adjustment cylinder (1). The output end of the second motor (8) is connected to one end of the lead screw (19).

6. The tree trimming device for forest fire prevention according to claim 1, wherein: Two handles (7) are fixedly installed on the surface of the regulating cylinder (1), and a locking block (10) is fixedly installed on the bottom wall of the mounting shell (2). The surface of the locking block (10) is provided with a locking groove (11), and the groove of the locking groove (11) is adapted to the wall of the protective sleeve (5).

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