Branch cutting device beside high-voltage line

Abstract

This invention belongs to the field of tree branch pruning technology near high-voltage power lines, and discloses a tree branch cutting device for high-voltage power lines. The device includes a drone, a connector, and a cutting unit. One end of the connector is pivotally connected to the bottom of the drone; the cutting unit is located at the other end of the connector; the cutting unit includes multiple cutting mechanisms, each including a first drive member, a second drive member, a movable member, and a saw blade. The first drive member is located at the bottom of the saw blade, and its output end is connected to the saw blade drive for driving the saw blade to rotate. The movable member is located above the saw blade. The telescopic end of the second drive member is used to drive the movable member to move vertically, so that the movable member can disengage from the top of the saw blade. The drone can carry the cutting unit upwards and effectively cut branches at higher elevations. When the saw blade jams, the second drive member can drive the movable member to move, creating a gap to discard the saw blade and preventing the drone from being unable to return.

Description

Technical Field

[0001] This invention relates to the field of tree branch pruning technology near high-voltage power lines, and more particularly to a tree branch cutting device near high-voltage power lines. Background Technology

[0002] With the development of technology, the number of factories in various industries is increasing daily. The development of factories is inseparable from the normal operation of electricity, and most of them require high-voltage electricity. To ensure that the environment near factories is not affected, trees are usually planted near factories. However, as the trees grow, the branches may scratch the high-voltage lines, and the sap produced on the branches can also corrode the high-voltage lines. This not only shortens the service life of the high-voltage lines, but may also lead to power outages and cause economic losses.

[0003] To facilitate tree branch pruning, current technology typically involves installing a cutting mechanism on the bottom of a drone, which is then remotely controlled to cut or prune branches at higher elevations. However, during the cutting process, the blades can easily get stuck on branches or leaves, making them difficult to remove and preventing the drone from returning to its original position. This can even pose a risk of damaging high-voltage power lines. Furthermore, due to the height of the branches and their proximity to power lines, manual pruning is not only inconvenient but also extremely dangerous, while drone-based cutting cannot easily discard the blades if they become stuck.

[0004] Therefore, there is an urgent need for a tree branch cutting device near high-voltage lines to solve the problem of not being able to discard the blade when it gets stuck. Summary of the Invention

[0005] The purpose of this invention is to provide a tree branch cutting device next to a high-voltage power line to solve the problem that the device cannot discard the blade when the blade is stuck.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A tree branch cutting device near a high-voltage power line, comprising:

[0008] Drones;

[0009] A connector, one end of which is pivotally connected to the bottom end of the drone;

[0010] A cutting unit is disposed at the other end of the connector; the cutting unit includes multiple cutting mechanisms, each including a first driving member, a second driving member, a movable member, and a saw blade. The first driving member is disposed at the bottom of the saw blade, and its output end is connected to the saw blade for driving the saw blade to rotate. The movable member is disposed above the saw blade. The telescopic end of the second driving member is used to drive the movable member to move vertically so that the movable member can detach from the saw blade from the top.

[0011] Preferably, the cutting unit further includes a mounting frame, and a plurality of the cutting mechanisms are spaced apart and evenly arranged within the mounting frame along the length direction of the mounting frame.

[0012] Preferably, the mounting bracket has a cutting hole extending through its width, and the saw blade is disposed within the cutting hole.

[0013] Preferably, all of the cutting mechanisms are detachably connected to the mounting bracket.

[0014] Preferably, the mounting bracket is provided with a connecting component, which includes a connecting block and a sliding member. The connecting block has a sliding groove inside, and the sliding member can slide within the sliding groove. One end of the sliding member is provided with a first toothed rack.

[0015] A vertical rod is provided on one side of the cutting mechanism. One end of the vertical rod is connected to the mounting frame, and the other end is provided with a gear. A second rack is provided vertically on the side of the movable part near the vertical rod. The gear meshes with both the first rack and the second rack. The first rack and the second rack are perpendicular to each other.

[0016] Preferably, the cutting unit includes a housing, and the first driving member, the second driving member, and the movable member are all disposed within the housing;

[0017] The housing has a fixing part on one side along the width direction, and the connecting assembly also includes a pin, which is configured to be inserted into the fixing part or retracted into the connecting block so as to separate the cutting mechanism from the connecting assembly.

[0018] Preferably, the connecting assembly further includes a movable rod and a first elastic element. The first elastic element is disposed vertically inside the connecting block, with its two ends connected to the pin and the movable rod, respectively. The other end of the movable rod can abut against the sliding member. The elastic force of the first elastic element can cause the pin to retract into the connecting block. When the sliding member is inserted into the sliding groove, the other end of the pin can be inserted into the fixing part.

[0019] Preferably, the end of the movable rod away from the first elastic element is provided with an arc-shaped surface.

[0020] Preferably, each of the cutting mechanisms is provided with the second rack, the connecting assembly, and the upright on both sides along the length direction.

[0021] Preferably, the mounting component is provided with a positioning hole, and the end of the connector away from the drone is provided with a positioning pin, which can be inserted into the positioning hole.

[0022] The beneficial effects of this invention are:

[0023] This invention discloses a tree branch cutting device near high-voltage power lines. The device includes a drone, a connector, and a cutting unit. One end of the connector is pivotally connected to the bottom of the drone; the cutting unit is located at the other end of the connector; the cutting unit includes multiple cutting mechanisms, each including a first driving member, a second driving member, a movable member, and a saw blade. The first driving member is located at the bottom of the saw blade, and its output end is connected to the saw blade for driving the saw blade to rotate. The movable member is located above the saw blade. The telescopic end of the second driving member drives the movable member to move vertically, allowing the movable member to detach from the saw blade from its top.

[0024] The drone can ascend with its cutting unit to effectively cut branches at higher elevations. Multiple cutting mechanisms ensure cutting efficiency, while the connecting parts, pivotally connected to the bottom of the drone, enhance cutting flexibility. When the saw blade jams, the second drive unit moves the movable part, creating a gap between the bottom of the movable part and the top of the saw blade. This gap allows the drone to be controlled, and by shaking in place, it can discard the saw blade from the gap. This ensures that the saw blade can be discarded promptly when jammed, preventing the drone from being unable to return. Attached Figure Description

[0025] Figure 1 This is an isometric view of the high-voltage power line tree branch cutting device provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the high-voltage power line tree branch cutting device provided by the present invention;

[0027] Figure 3 This is a schematic diagram of the cutting unit provided by the present invention;

[0028] Figure 4 This is a first structural schematic diagram of the cutting unit provided by the present invention;

[0029] Figure 5 This is a schematic diagram of the second structure of the cutting unit provided by the present invention;

[0030] Figure 6 This is a schematic diagram of the third structure of the cutting unit provided by the present invention;

[0031] Figure 7 This is a schematic diagram of the fourth structure of the cutting unit provided by the present invention;

[0032] Figure 8 This is a fifth structural schematic diagram of the cutting unit provided by the present invention;

[0033] Figure 9 This is a schematic diagram of the meshing structure of the gear and the second rack provided by the present invention.

[0034] In the picture:

[0035] 10. Drones;

[0036] 20. Connecting parts; 21. Locating pins;

[0037] 30. Cutting mechanism; 31. First driving component; 32. Second driving component; 33. Moving component; 331. Second rack; 34. Saw blade; 341. Mounting hole; 35. Housing; 351. Fixing part; 352. Upper box; 353. Lower box; 36. Second elastic component; 37. Sleeve;

[0038] 40. Mounting bracket; 41. Cutting hole; 42. Positioning hole;

[0039] 50. Connecting assembly; 51. Connecting block; 511. Sliding groove; 52. Sliding element; 521. First rack; 53. Movable rod; 531. Arc-shaped surface; 54. Pin; 55. First elastic element;

[0040] 60. Upright pole; 61. Gear; 62. Inserted pole. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0042] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0045] To facilitate the trimming of tree branches near high-voltage power lines, this embodiment provides a tree branch cutting device for use near high-voltage power lines. For example... Figures 1-8 As shown, the cutting device includes a drone 10, a connector 20, and a cutting unit. One end of the connector 20 is pivotally connected to the bottom end of the drone 10; the cutting unit is located at the other end of the connector 20; the cutting unit includes multiple cutting mechanisms 30, each including a first drive member 31, a second drive member 32, a movable member 33, and a saw blade 34. The first drive member 31 is located at the bottom of the saw blade 34, and its output end is connected to the saw blade 34 for driving the saw blade 34 to rotate. The movable member 33 is located above the saw blade 34. The telescopic end of the second drive member 32 is used to drive the movable member 33 to move vertically so that the movable member 33 can detach from the top of the saw blade 34.

[0046] In this device, the drone 10 can drive the cutting unit upwards to the cutting position via the connector 20, thus avoiding the need for operators to climb to the top of the tree for pruning and to avoid the operators being near high-voltage lines, ensuring both convenience and operator safety. The cutting unit includes multiple cutting mechanisms 30, ensuring overall cutting efficiency. The connector 20 is pivotally connected to the bottom of the drone 10, which improves the flexibility of the cutting. The output end of the first drive member 31 is connected to the saw blade 34, which can smoothly drive the saw blade 34 to rotate, thereby completing the cutting work. During the cutting process, the telescopic end of the second drive member 32 extends, and the saw blade 34 is fixed in the rotating position by the movable part 33. When the saw blade 34 gets stuck, the telescopic end of the second drive component 32 can drive the movable component 33 to retract, so that the movable component 33 no longer limits the top of the saw blade 34. Then, by controlling the drone 10, the drone 10 can drive the cutting unit to shake, so that the saw blade 34 can be dislodged from the cutting unit, thus easily discarding the stuck saw blade 34 and ensuring the safety of operation.

[0047] It should be noted here that, in this embodiment, as Figures 3-7As shown, the cutting mechanism 30 also includes a housing 35, within which the first driving member 31, the second driving member 32, and the movable member 33 are all housed. This arrangement improves the overall integrity of the device, facilitating its placement on the mounting bracket 40. Specifically, the housing 35 includes an upper box 352 and a lower box 353, with the first driving member 31 housed in the lower box 353 and the second driving member 32 housed in the upper box 352. Furthermore, the cutting mechanism 30 also includes a second elastic member 36 and a sleeve 37. One end of the second elastic member 36 is connected to the upper box 352, and the other end is connected to the movable member 33. The bottom end of the movable member 33 is connected to the sleeve 37. The output end of the first driving member 31 passes through the mounting hole 341 of the saw blade 34. After installation, the sleeve 37 is fitted over the portion of the output end that passes through the mounting hole 341. When the second elastic element 36 is not subjected to external force, it can push the movable element 33 and the sleeve 37 downward, thereby limiting the saw blade 34 from the upper part of the output end and ensuring that the saw blade 34 can rotate in the preset position. When it is necessary to discard the saw blade 34, the second drive element 32 drives the movable element 33 and the sleeve 37 to rise and compress the second elastic element 36, thereby causing the movable element 33 and the sleeve 37 to disengage from the top of the saw blade 34, thus no longer limiting the saw blade 34 from the top. Then, by operating and shaking the drone 10, the saw blade 34 can be thrown out from the gap at the top, thereby achieving the purpose of discarding the saw blade 34.

[0048] To further explain, the first driving component 31 is a rotary stepper motor, whose output can drive the saw blade 34 to rotate around its own axis; the second driving component 32 is an electric cylinder (electric linear actuator). Both the rotary stepper motor and the electric cylinder have the advantages of simple structure, high precision, fast response and high stability.

[0049] To facilitate the installation of the cutting mechanism 30, such as Figures 1-3 As shown, the cutting unit also includes a mounting frame 40, and multiple cutting mechanisms 30 are spaced apart and evenly arranged within the mounting frame 40 along its length. This structure allows multiple cutting mechanisms 30 to be installed in parallel and side-by-side, thereby simplifying the overall structure, improving installation efficiency, and also increasing cutting efficiency.

[0050] like Figures 1-3 As shown, the mounting bracket 40 has a cutting hole 41 extending through its width, and the saw blade 34 is disposed within the cutting hole 41. When the saw blade 34 becomes stuck and needs to be discarded, the second drive component 32 drives the movable component 33 to rise, thereby ensuring that the top of the saw blade 34 is no longer restricted. Since the cutting hole 41 extends through the mounting bracket 40, it ensures that when the drone 10 is shaken, the saw blade 34 can be dislodged from both sides, making the discarding process of the saw blade 34 more convenient. It should be noted here that, as Figures 4-8As shown, there is a gap between the upper box 352 and the lower box 353, through which the saw blade 34 can pass and extend from the cutting hole 41, which also facilitates installation.

[0051] Furthermore, multiple cutting mechanisms 30 and mounting brackets 40 are detachably connected. This detachable connection not only facilitates installation but also improves subsequent maintenance and parts replacement, enhancing overall ease of use.

[0052] Due to the complex growth patterns of tree branches near high-voltage lines, saw blade 34 may not be able to be discarded, potentially causing the device to become stuck in the bushes. To address this issue, such as... Figures 4-8 As shown, the mounting frame 40 is provided with a connecting component 50, which includes a connecting block 51 and a sliding member 52. The connecting block 51 is provided with a sliding groove 511, and the sliding member 52 can slide in the sliding groove 511. One end of the sliding member 52 is provided with a first rack 521. A vertical rod 60 is provided on one side of the cutting mechanism 30. One end of the vertical rod 60 is connected to the mounting frame 40, and the other end is provided with a gear 61. The movable member 33 is provided with a second rack 331 in the vertical direction on the side near the vertical rod 60. The gear 61 meshes with both the first rack 521 and the second rack 331. The first rack 521 and the second rack 331 are perpendicular to each other.

[0053] In the above structure, when the saw blade 34 cannot be successfully discarded, the movable part 33 can be driven upward by the second driving member 32. The movable part 33 can drive the gear 61 to rotate through the second rack 331, and the gear 61 can continue to drive the first rack 521 to move away from the connecting block 51. That is, while the second rack 331 moves upward, it can pull the sliding member 52 out of the interior of the connecting block 51. When the sliding member 52 is completely pulled out of the interior of the connecting block 51, the cutting mechanism 30 is disengaged from the connecting component 50, and the entire cutting mechanism 30 can be abandoned, ensuring that the device will not get stuck between the tree branch and the high-voltage line.

[0054] It should be noted here that, as Figure 9 As shown, the second rack 331 meshes with the inner side of the gear 61, and the outer side of the gear 61 protrudes from the second rack 331. The first rack 521 can mesh with the outer side (protruding side) of the gear 61, effectively reducing the installation difficulty. In addition, the upright 60 is also provided with a plug rod 62, which is positioned opposite to the sliding member 52. The sliding member 52 has a plug hole along its axial direction. When the gear 61 drives the sliding member 52 to move away from the connecting block 51, the plug rod 62 can be inserted into the plug hole, thereby ensuring the stability of the sliding member 52 during movement.

[0055] However, the sliding member 52 alone cannot securely fix the cutting mechanism 30. Therefore, as Figures 4-8As shown, a fixing part 351 is provided on one side of the housing 35 along its width direction. The connecting assembly 50 also includes a pin 54, which is configured to be inserted into the fixing part 351 or retracted into the connecting block 51 to separate the cutting mechanism 30 from the connecting assembly 50. By providing the pin 54, when cutting is required, the pin 54 is controlled to be inserted into the fixing part 351 to fix the cutting mechanism 30; when the entire cutting mechanism 30 needs to be abandoned, the pin 54 is retracted into the connecting block 51, thereby allowing the cutting mechanism 30 to detach from the connecting assembly 50 and fall off. This not only produces a good fixing effect but also allows the cutting mechanism 30 to fall off in a timely manner.

[0056] To simplify the insertion and retraction structure of pin 54, such as Figures 4-8 As shown, the connecting assembly 50 also includes a movable rod 53 and a first elastic member 55. The first elastic member 55 is arranged vertically inside the connecting block 51, and its two ends are respectively connected to the pin 54 and the movable rod 53. The other end of the movable rod 53 can abut against the sliding member 52. The elastic force of the first elastic member 55 can cause the pin 54 to retract into the connecting block 51. When the sliding member 52 is inserted into the sliding groove 511, the other end of the pin 54 can be inserted into the fixing part 351. Driven by gear 61, the sliding member 52 can slide within the sliding groove 511. When the movable rod 53 no longer abuts against the sliding member 52, the first elastic member 55 is no longer subjected to external force and can pull the pin 54 inward, thereby disengaging the pin 54 from the fixing part 351, allowing the cutting mechanism 30 to disengage. When it is necessary to fix the cutting mechanism 30, simply insert the sliding member 52 back into the sliding groove 511 and abut against the sliding member 52. At this time, the movable rod 53 can compress the first elastic member 55, which in turn pushes the pin 54 outward from the connecting block 51 and inserts it into the fixing part 351, thus completing the fixation of the cutting mechanism 30. The structure is simple, and only the second drive member 32 needs to be controlled to discard the saw blade 34 and the cutting mechanism 30 sequentially, ensuring good performance. The first elastic member 55 is a spring, which has a simple structure, is inexpensive, and easy to install, effectively reducing costs.

[0057] To facilitate the insertion of the slider 52 back into the sliding groove 511, such as Figures 4-8 As shown, the end of the movable rod 53 furthest from the first elastic element 55 is provided with an arc-shaped surface 531. When the sliding element 52 moves into the connecting block 51, its end can abut against the arc-shaped surface 531. At this time, the movable rod 53 can be separated in both the horizontal and vertical directions. The horizontal component of the force is canceled out by the inner wall of the connecting block 51, while the vertical component can compress the first elastic element 55, thereby pushing the pin 54 outward from the connecting block 51, thus achieving a fixed connection to the cutting mechanism 30. The structure is simple and easy to use.

[0058] To ensure effective fixation and timely disposal, each cutting mechanism 30 is equipped with a second rack 331, a connecting component 50, and a support pole 60 on both sides along its length. This not only ensures effective fixation and creates a stable cutting environment but also facilitates the disposal of the cutting mechanism 30, preventing the drone 10 from being unable to return after the saw blade 34 jams, thus avoiding damage to the high-voltage line.

[0059] In addition, such as Figures 1-3 As shown, the mounting bracket 40 is provided with a positioning hole 42, and the end of the connector 20 away from the drone 10 is provided with a positioning pin 21, which can be inserted into the positioning hole 42. The method of inserting the positioning pin 21 into the positioning hole 42 not only facilitates the installation of the cutting unit, but also facilitates the subsequent maintenance and replacement of the drone 10, ensuring ease of use.

[0060] Furthermore, it is obvious that the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A high-voltage line tree pruning device, characterized by, The utility model relates to a cutting device for unmanned aerial vehicle, comprising: an unmanned aerial vehicle (10); a connecting piece (20) having one end pivotally connected to the bottom end of the unmanned aerial vehicle (10); a cutting unit arranged at the other end of the connecting piece (20), the cutting unit comprising a plurality of cutting mechanisms (30), each cutting mechanism (30) comprising a first driving member (31), a second driving member (32), a movable member (33), and a saw blade (34), the first driving member (31) being arranged at the bottom of the saw blade (34) and having an output end drivingly connected to the saw blade (34) for driving the saw blade (34) to rotate, the movable member (33) being arranged above the saw blade (34), and the second driving member (32) having an extension end for driving the movable member (33) to move vertically so that the movable member (33) can be separated from the saw blade (34) at the top end; the cutting unit further comprising a mounting rack (40), the plurality of cutting mechanisms (30) being arranged in the mounting rack (40) along the length direction of the mounting rack (40) and spaced and uniformly arranged in the mounting rack (40), and the cutting mechanisms (30) and the mounting rack (40) being detachably connected; the mounting rack (40) being provided with a connecting assembly (50), the connecting assembly (50) comprising a connecting block (51) and a sliding member (52), the connecting block (51) being internally provided with a sliding groove (511), the sliding member (52) being capable of sliding in the sliding groove (511), and one end of the sliding member (52) being provided with a first rack (521); one side of the cutting mechanism (30) being provided with a vertical rod (60), one end of the vertical rod (60) being connected to the mounting rack (40), and the other end of the vertical rod (60) being provided with a gear (61), the movable member (33) being provided with a second rack (331) on the side close to the vertical rod (60) along the vertical direction, and the gear (61) being meshingly connected to the first rack (521) and the second rack (331), the first rack (521) being perpendicular to the second rack (331); the cutting mechanism (30) comprising a housing (35), the first driving member (31), the second driving member (32), and the movable member (33) being arranged in the housing (35); one side of the housing (35) along the width direction being provided with a fixed portion (351), the connecting assembly (50) further comprising a latch (54) configured to be inserted into the fixed portion (351) or retracted into the connecting block (51) so that the cutting mechanism (30) is separated from the connecting assembly (50).

2. The high-voltage line-parallel branch cutting device according to claim 1, characterized in that the mounting rack (40) being provided with a cutting hole (41) extending through the mounting rack (40) along the width direction, and the saw blade (34) being arranged in the cutting hole (41).

3. The high voltage line tree trimming device of claim 1, wherein, The connecting assembly (50) further comprises a movable rod (53) and a first elastic member (55), the first elastic member (55) is arranged inside the connecting block (51) in the vertical direction, and two ends thereof are connected with the bolt (54) and the movable rod (53) respectively, the other end of the movable rod (53) can abut to the sliding piece (52), the elastic force of the first elastic member (55) can make the bolt (54) retract to the inside of the connecting block (51), and when the sliding piece (52) is inserted into the sliding groove (511), the other end of the bolt (54) can be inserted into the fixed part (351).

4. The high-voltage line-by-wire branch-cut device of claim 3, wherein, An arc-shaped surface (531) is arranged on the end of the movable rod (53) away from the first elastic member (55).

5. The high voltage line tree trimming device of claim 1, wherein, The second rack (331), the connecting assembly (50) and the vertical rod (60) are arranged on both sides of each cutting mechanism (30) in the length direction.

6. The high-voltage line-parallel branch cutting device according to claim 1, characterized by A positioning hole (42) is arranged on the mounting rack (40), a positioning pin (21) is arranged on the end of the connecting piece (20) away from the unmanned aerial vehicle (10), and the positioning pin (21) can be correspondingly inserted into the positioning hole (42).

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