Tree pruning guide hook for power line operation and maintenance

Abstract

The utility model belongs to the technical field of circuit maintenance, specifically relates to a tree pruning guide hook for power line operation and maintenance, a bent hook subassembly is used for hooking branches, a clamping subassembly is rotatably connected to the bent hook subassembly and is used for clamping branches in cooperation with the bent hook subassembly, a limiting part is arranged between the clamping subassembly and the bent hook subassembly, the limiting part guides the one-way rotation of the clamping subassembly on the bent hook subassembly, a control subassembly is used for moving the clamping subassembly and the bent hook subassembly to a use position, the control subassembly rotates the clamping subassembly on the bent hook subassembly to clamp branches, and a pulling subassembly is detachably arranged on the bent hook subassembly, so that the operator does not need to carry a pulling rope or other tools to climb trees for fixing when pulling branches, thereby reducing the operation difficulty of the operator and ensuring personal safety.

Description

Technical Field

[0001] This utility model belongs to the field of circuit maintenance technology, specifically relating to a tree trimming guide hook for power line maintenance. Background Technology

[0002] During the operation and maintenance of overhead power distribution lines, excessively tall trees frequently occur within the protection zones of the line corridors. These excessively tall trees can cause line discharge and tripping, posing a significant hazard to the safe operation of the lines. To ensure the safe and stable operation of the power distribution network, it is essential to remove excessively tall trees from the corridors. If the falling of these trees is not effectively controlled, they may fall onto nearby workers or low-voltage lines and other facilities, seriously endangering personal safety and property.

[0003] Traditionally, workers use foot straps or ladders to climb trees, attaching one end of a rope or a tree hook (a tool with a curved hook structure, such as a metal hook) to a high branch. Workers then pull the other end of the rope to control the tree's fall. This requires workers to climb to heights of 2 meters or more, constituting high-altitude work and posing a significant safety hazard due to the risk of falls. Secondly, some tree species have thorns and brittle branches, making climbing difficult and increasing the risk. Furthermore, the tree hooks used in traditional methods are simple hook-like structures that can only be attached to branches; when the rope is pulled, the hook can easily slip and fall off the branch. Summary of the Invention

[0004] Based on this, this application provides a tree trimming guide hook for power line operation and maintenance to solve the technical problems of high operational difficulty and low connection firmness in the prior art.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows:

[0006] A tree trimming guide hook for power line maintenance includes:

[0007] Hook assembly for hooking onto tree branches;

[0008] A clamping assembly, which is rotatably connected to the hook assembly, is used to clamp the branch in conjunction with the hook assembly.

[0009] A limiting part is provided between the clamping assembly and the hook assembly, and the limiting part guides the clamping assembly to rotate unidirectionally on the hook assembly.

[0010] A control component is used to move the clamping component and the hook component to the use position, and the control component drives the clamping component to rotate on the hook component to clamp the tree branch;

[0011] A traction assembly, which is detachably mounted on the hook assembly.

[0012] Preferably, the hook assembly includes a vertical section with a ring at the lower end and a curved section extending laterally from the upper end of the vertical section. A threaded hole is provided in the middle of the vertical section, and a screw is connected in the threaded hole. The clamping assembly is connected to the vertical section by the screw and rotates around the axis of the threaded hole. The pulling assembly is connected to the ring.

[0013] Preferably, the clamping assembly includes a curved arm with a through hole in the middle, an arc-shaped hook extending towards the curved section at the lower end of the curved arm, a screw passing through the through hole and connected to a threaded hole, and a control assembly detachably connected to the end of the curved arm.

[0014] Preferably, the limiting part includes a slot distributed circumferentially along the axis of the threaded hole on the front side of the vertical section, and a slide groove opened on the rear side of the crank arm. An inclined block is slidably connected in the slide groove and connected by a spring. One side of the inclined block is an inclined surface and can slide into the slot.

[0015] Preferably, the front end of the inclined block is detachably connected to a sliding rod that extends through the curved arm.

[0016] Preferably, the traction assembly includes a traction rope, the end of which is tied to a ring.

[0017] Preferably, the control component includes a sleeve and an inner rod slidably connected inside the sleeve. A column is formed at the top of the inner rod, a crossbar is formed on the side of the column, and a round hole for inserting the crossbar is provided at the end of the curved arm.

[0018] Preferably, the side of the column is formed with a stop bar, which is located below the horizontal bar and is used to support the vertical section from the outside.

[0019] Preferably, the lower side of the sleeve is provided with a soft sleeve with a notch, and the lower end of the soft sleeve extends outward to form an outer edge.

[0020] Preferably, both the inner side of the curved section and the inner side of the hook have a serrated structure.

[0021] Compared with the prior art, this application has at least the following advantages:

[0022] This application provides a tree pruning guide hook for power line maintenance. A pulling component is connected to a hook component, and a clamping component is connected to a control component. The operator picks up the control component and moves the clamping component toward the tree, causing the clamping component to bring the hook component close to the branch to be clamped. The operator then adjusts the position of the hook component so that it hooks onto the branch, with the hook positioned above the branch. Pulling the control component downwards causes the clamping component to rotate in the middle on the hook component, thus gripping the branch hooked by the hook component and achieving a tight clamp. The effect is that the limiting part can limit the clamping component that has rotated to the clamping branch state, preventing the clamping component from rotating back and releasing the branch. Then, the control component is disengaged from the clamping component, and the pulling component is pulled away from nearby workers or low-voltage lines and other facilities. When pulling the branch, the operator does not need to carry a tow rope or other tools to climb the tree to fix it, thereby reducing the difficulty of operation for the operator, ensuring personal safety, and also clamping the pulled branch, enhancing the connection with the branch and preventing loosening or displacement. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the tree trimming guide hook for power line maintenance in this application;

[0024] Figure 2 This is a schematic diagram of the control components of this application;

[0025] Figure 3 This is a schematic diagram showing the connection between the hook assembly and the clamp assembly in this application;

[0026] Figure 4 This is a schematic diagram of the inclined block entering the slot in this application;

[0027] Figure 5 This is a schematic diagram of the hook assembly of this application;

[0028] Figure 6 This is a schematic diagram of the inclined block in this application;

[0029] Figure 7 This is a schematic diagram of the clamp assembly of this application.

[0030] In the diagram: Vertical section 101; Curved section 102; Ring 103; Threaded hole 104; Slot 105; Crank arm 201; Round hole 202; Through hole 203; Hook 204; Slide rod 205; Slide groove 206; Wedge block 207; Screw 301; Sleeve 401; Inner rod 402; Column 403; Horizontal bar 404; Stop bar 405; Soft sleeve 406; Outer eaves 407; Notch 408; Traction rope 501. Detailed Implementation

[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0032] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please refer to Figures 1 to 7 In one specific embodiment of this application,

[0035] A tree trimming guide hook for power line maintenance includes:

[0036] Hook assembly for hooking onto tree branches;

[0037] A clamping assembly, which is rotatably connected to the hook assembly, is used to clamp the branch in conjunction with the hook assembly.

[0038] A limiting part is provided between the clamping assembly and the hook assembly, and the limiting part guides the clamping assembly to rotate unidirectionally on the hook assembly.

[0039] A control component is used to move the clamping component and the hook component to the use position, and the control component drives the clamping component to rotate on the hook component to clamp the tree branch;

[0040] A traction assembly, which is detachably mounted on the hook assembly.

[0041] The hook assembly can be a curved hook or other device that can hook onto a branch; the clamp assembly can be a device that works with the hook assembly to clamp the branch or other clamping arms; the limiting part can be a ratchet or other unidirectional rotating device; the control assembly can be a telescopic arm or other device that can move the clamp assembly; and the pulling assembly can be telescopic or a chain.

[0042] In use, connect the pulling component to the hook component, then rotate the clamping component to keep both the clamping and hook components in an open state. Next, connect the clamping component to the control component. The operator picks up the control component and moves the clamping component toward the tree, bringing the hook component close to the branch to be clamped. Use the control component to adjust the position of the hook component so that it hooks onto the branch, with the hook positioned above the branch. Then pull the control component downwards. This increases the pressure between the hook component and the branch, restricting the hook component's movement and keeping it pressed tightly against the branch. As the control component moves the clamping component downwards, the middle of the clamping component rotates on the hook component, causing the clamping component to hold the branch hooked by the hook component, achieving a clamping effect. At this point, the limiting part can limit the clamping component's rotation to the clamped branch position, preventing the clamping component from rotating back and releasing the branch. Finally, disengage the control component from the clamping component (avoid using the control component while connected to the clamping component). The vibration generated when the tree falls damages the control component. Then, pull the pulling component away from nearby workers or low-voltage lines and other facilities. This will pull the branches clamped by the clamping component and hook component away from nearby workers or low-voltage lines and other facilities. When the tree falls, continue to use the pulling component to pull the tree away from nearby workers or low-voltage lines and other facilities. After the tree falls, remove the branches clamped by the clamping component and hook component. This can be done by further chopping the branches to reduce their volume and disperse them before removing them from between the clamping component and hook component. Then, continue to rotate the clamping component to return it to its open state. Taking a ratchet as an example, when the ratchet clamps the branch with the clamping component, after the ratchet and ratchet mesh, the ratchet will not rotate in the opposite direction. After the tree falls, the ratchet can be disengaged by moving the ratchet, allowing the ratchet to rotate back and the clamping component to return to its open state. In this application, after the tree falls, by pulling the slide bar 205 from the outside outward, the slide bar 205 pulls the inclined block 207 away from the slot 105 and retracts it into the slide groove 206, so that the inclined block 207 is disengaged from the slot 105, and the crank arm 201 can be manually turned in the opposite direction to release the branch (see below for details).

[0043] The above method eliminates the need for operators to climb trees with ropes or other tools to secure branches, reducing operational difficulty, ensuring personal safety, and also clamping the branches to enhance the connection and prevent loosening or shifting.

[0044] Specifically, an embodiment of the hook assembly in the above process is provided:

[0045] The hook assembly includes a vertical section 101 with a ring 103 at the lower end, and a curved section 102 extending laterally from the upper end of the vertical section 101. A threaded hole 104 is provided in the middle of the vertical section 101, and a screw 301 is connected in the threaded hole 104. The clamping assembly is connected to the vertical section 101 by the screw 301 and rotates around the axis of the threaded hole 104. The pulling assembly is connected to the ring 103.

[0046] When clamping a tree branch, the control component moves the clamping component closer to the branch, causing the clamping component to move the vertical section 101 via the screw 301 until the curved section 102 at the upper end of the vertical section 101 hooks onto the branch. During this process, the clamping component and the curved section 102 remain open. Then, the control component can be pulled, causing it to rotate the clamping component around the axis of the threaded hole 104. The clamping component rotates and approaches, clamping the branch within the curved section 102, thus completing the clamping of the branch. Then, the pulling component connected to the ring 103 pulls the vertical section 101, causing the vertical section 101 to pull the branch clamped in the curved section 102 towards the designated direction (as mentioned above, away from nearby workers or low-voltage lines and other facilities). This improves safety, and the entire process is accomplished through the control component, eliminating the need for personnel to climb the tree.

[0047] Specifically, an embodiment of the clamping assembly in the above process is provided:

[0048] The clamping assembly includes a curved arm 201 with a through hole 203 in the middle, and an arc-shaped hook 204 extending toward the bending section 102 at the lower end of the curved arm 201. A screw 301 passes through the through hole 203 and is connected to the threaded hole 104. The control component is detachably connected to the end of the curved arm 201.

[0049] The control component can lift the crank arm 201 by driving the end of the crank arm 201, allowing the crank arm 201 to move closer to the tree branch. At this time, the hook 204 and the curved section 102 remain open. After the curved section 102 hooks onto the tree branch, by pulling down the end of the crank arm 201, the crank arm 201 rotates along the screw 301, causing the hook 204 at the lower end of the curved section 102 to rotate towards the curved section 102. The hook 204 clamps the tree branch hooked by the curved section 102, thereby clamping the tree branch. After the tree is felled and the tree branch clamped between the hook 204 and the curved section 102 is removed, the hook 204 can be rotated again to return to the open position between the hook 204 and the curved section 102 for reset.

[0050] Specifically, an embodiment of the limiting part in the above process is provided:

[0051] The limiting part includes a slot 105 distributed circumferentially along the axis of the threaded hole 104 on the front side of the vertical section 101, and a slide groove 206 opened on the rear side of the crank arm 201. A wedge block 207 is slidably connected in the slide groove 206 and connected by a spring. One side of the wedge block 207 is inclined and can slide into the slot 105.

[0052] As the crank arm 201 rotates, the slide groove 206 and the inclined block 207 within it also move in a circular motion around the rotation center of the crank arm 201. During this process, the direction of movement of the inclined surface on the inclined block 207 is consistent with the direction of rotation. That is, when the inclined block 207 rotates with the slide groove 206, the inclined surface of the inclined block 207 is in front (in the direction of rotation), and the end of the inclined block 207 contacts the front surface of the vertical section 101. At this time, the spring is compressed, which provides a driving force for the inclined block 207 to slide out of the slide groove 206. When the inclined block 207 slides into one of the slots 105, under the driving force generated by the spring, the inclined block 207 slides into the slot 105. When the spring is fully restored, the inclined surface on the inclined block 207 makes point contact with the slot. At the corner (hereinafter referred to as the apex corner) between the front side wall of the slot 105 in the direction of rotation and the front surface of the vertical section 101, the other side of the inclined block 207 is in contact with the front side wall of the slot 105 in the direction of rotation. At this time, due to the blocking effect of the front side wall of the slot 105 in the direction of rotation, the inclined block 207 will not slide out of the slot 105, so the crank arm 201 will not rotate. If the crank arm 201 continues to rotate, the apex corner will act on the inclined surface of the inclined block 207, applying a force to the inclined block 207 to slide out of the slot 105, causing the inclined block 207 to slide out of the slot 105 and squeeze the spring back into the slide groove 206, so as not to affect the rotation of the crank arm 201. After the tree is felled, the clamped branches are removed, and the hook 204 can be rotated to reset.

[0053] In this way, the curved arm 201 can rotate unidirectionally on the vertical section 101, thereby preventing the hook 204 from rotating and loosening the branch when the curved section 102 and the hook 204 are holding the branch tightly, thus preventing the branch from falling off.

[0054] In addition, because the inclined block 207 and the vertical section 101 are in a state of friction for a long time, wear will occur after long-term use. Therefore, the inclined block 207 and the vertical section 101 can be made of wear-resistant materials. In addition, for easy replacement and maintenance, the front end of the inclined block 207 is detachably connected to a slide rod 205 that passes through the crank arm 201.

[0055] During installation, connect the end of the sliding rod 205 that enters the groove 206 to the inclined block 207. Then, insert the sliding rod 205 into the groove 206 of the crank arm 201 and exit from the front side of the crank arm 201. It can then be used. When maintenance or replacement is required, reverse the operation and remove the inclined block 207. In addition, after the tree falls, by pulling the sliding rod 205 from the outside to the outside, the sliding rod 205 pulls the inclined block 207 away from the slot 105 and retracts it into the groove 206, so that the inclined block 207 is disengaged from the slot 105. Then, the crank arm 201 can be manually rotated in the opposite direction to release the branch.

[0056] Specifically, an embodiment of the traction component in the above process is provided:

[0057] The traction assembly includes a traction rope 501, the end of which is tied to a ring 103.

[0058] By passing one end of the traction rope 501 through the ring 103, the traction rope 501 can be tied tightly to the lower end of the vertical section 101. Then, when the vertical section 101 is pulled by the traction rope 501, the branch hooked by the curved section 102 can be pulled in the specified direction.

[0059] Specifically, an embodiment of the control components in the above process is provided:

[0060] The control component includes a sleeve 401 and an inner rod 402 slidably connected inside the sleeve 401. A column 403 is formed at the top of the inner rod 402, and a crossbar 404 is formed on the side of the column 403. A round hole 202 for inserting the crossbar 404 is provided at the end of the curved arm 201.

[0061] The operator holds the sleeve 401 and pulls the inner rod 402 outward, causing the inner rod 402 to extend outward within the sleeve 401. The length formed by the inner rod 402 and the sleeve 401 is sufficient for the operator to move the curved arm 201, suspended on the crossbar 404, to the vicinity of the tree branch while standing on the ground. The crossbar 404 and the round hole 202 are inserted together, allowing for quick installation and removal. The inner rod 402 and the sleeve 401 move the curved arm 201, which in turn moves the vertical section 101. And make the curved section 102 hook the branch, and then pull down the sleeve 401 and the inner rod 402. When the inner rod 402 moves down, it drives the crank arm 201 to rotate, so that the hook 204 clamps the branch in the curved section 102. Then, the crossbar 404 moves along the extension direction of its own axis, so that the crossbar 404 moves out of the round hole 202. The control component can then be disengaged from the crank arm 201. At this time, the branch can be pulled by the traction rope 501, thus completing the traction and control of the tree's falling direction.

[0062] In this way, the operator can hang the curved section 102 on the tree branch while standing on the ground and clamp the branch with the hook 204. After clamping the branch, the control component can be disassembled from the curved arm 201, so that other hook components and clamping components can be hung on other branches using the control component. This allows multiple hook components and clamping components to be hung on multiple branches of the tree with one control component, so that the tree can be pulled from multiple points, making the direction of the tree's fall more stable and accurate.

[0063] Additionally, the crossbar 404 is inserted into the round hole 202 to complete the suspension of the curved arm 201. However, because the curved arm 201 is supported by the weight of the bent section 102, the vertical section 101 is prone to tilting relative to the vertical direction, which causes the opening direction of the bent section 102 to change. For example, when the opening faces horizontally, it is more difficult to hook the tree branch, while when the opening faces downward, it is easier to hook the tree branch. Therefore, in this application, the side of the column 403 is formed with a stop bar 405, which is located below the crossbar 404. The stop bar 405 is used to support the vertical section 101 from the outside.

[0064] refer to Figure 1The horizontal bar 404 is inserted into the round hole 202. The curved section 102 is located to the left of the round hole 202, which will cause the vertical section 101 to rotate (swing) counterclockwise around the horizontal bar 404. At this time, the stop bar 405 can be used to block and support the right side of the vertical section 101 to prevent it from rotating counterclockwise around the horizontal bar 404. That is, the vertical section 101 is made to stick to the stop bar 405 to limit the swing, so that the vertical section 101 is kept in a relatively vertical state, and the opening of the curved section 102 is facing downward so as to hook the tree branch. At the same time, the restriction of the stop bar 405 reduces the swaying of the vertical section 101 and improves stability.

[0065] Meanwhile, when clamping the branches, the operator holds the sleeve 401 and pulls it downwards. Since the sleeve 401 and the palm are connected by friction, the operator needs to hold the sleeve 401 tightly to prevent slippage. In this case, the operator needs to use a lot of force, which can easily lead to fatigue over time. Therefore, in this application, the sleeve 401 is provided with a soft sleeve 406 with a notch 408 on the lower side, and the lower end of the soft sleeve 406 extends outward to form an outer edge 407.

[0066] The operator holds the soft sleeve 406 on the lower side of the sleeve 401, which increases the comfort of the palm. Then, the lower part of the palm rests on the outer edge 407. When pulling the sleeve 401 downward, the outer edge 407 increases the point and range of force that can be applied in the horizontal direction, allowing the operator to move the sleeve 401 downward with less effort. In addition, when suspending the curved section 102, the traction rope 501 connected to the lower end of the vertical section 101 may swing arbitrarily, which may affect the operator. At this time, the traction rope 501 can be embedded into the notch 408, so that the traction rope 501 is basically aligned with the sleeve 401, thereby preventing the traction rope 501 from swinging arbitrarily and obstructing the operator's view or getting tangled in other objects.

[0067] In order to further enhance the clamping strength of the branches, in this application, the inner side of the curved section 102 and the inner side of the hook 204 are both serrated structures.

[0068] The serrated structure increases the roughness of the inner side of the curved section 102 and the inner side of the hook 204, increasing the friction between them and the branch, thereby improving the clamping firmness. It also prevents the inner side of the curved section 102 and the inner side of the hook 204 from sliding around the center of the branch, thus avoiding slippage.

[0069] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A tree trimming guide hook for power line maintenance, characterized in that, include: Hook assembly for hooking onto tree branches; A clamping assembly, which is rotatably connected to the hook assembly, is used to clamp the branch in conjunction with the hook assembly. A limiting part is provided between the clamping assembly and the hook assembly, and the limiting part guides the clamping assembly to rotate unidirectionally on the hook assembly. A control component is used to move the clamping component and the hook component to the use position, and the control component drives the clamping component to rotate on the hook component to clamp the tree branch; A traction assembly, which is detachably mounted on the hook assembly.

2. The tree trimming guide hook for power line maintenance as described in claim 1, characterized in that, The hook assembly includes a vertical section with a ring at the lower end and a curved section extending laterally from the upper end of the vertical section. A threaded hole is provided in the middle of the vertical section, and a screw is connected in the threaded hole. The clamping assembly is connected to the vertical section by the screw and rotates around the axis of the threaded hole. The pulling assembly is connected to the ring.

3. The tree trimming guide hook for power line maintenance as described in claim 2, characterized in that, The clamping assembly includes a curved arm with a through hole in the middle, and an arc-shaped hook extending towards the curved section at the lower end of the curved arm. A screw passes through the through hole and connects to a threaded hole. The control assembly is detachably connected to the end of the curved arm.

4. The tree trimming guide hook for power line maintenance as described in claim 3, characterized in that, The limiting part includes a slot distributed circumferentially along the axis of the threaded hole on the front side of the vertical section, and a slide groove opened on the rear side of the crank arm. A wedge block is slidably connected in the slide groove and connected by a spring. One side of the wedge block is inclined and can slide into the slot.

5. The tree trimming guide hook for power line maintenance as described in claim 4, characterized in that, The front end of the inclined block is detachably connected to a sliding rod that extends through the curved arm.

6. The tree trimming guide hook for power line maintenance as described in claim 4, characterized in that, The traction assembly includes a traction rope, the end of which is tied to a ring.

7. The tree trimming guide hook for power line maintenance as described in claim 4, characterized in that, The control component includes a sleeve and an inner rod slidably connected inside the sleeve. A column is formed at the top of the inner rod, and a crossbar is formed on the side of the column. A round hole for inserting the crossbar is provided at the end of the curved arm.

8. The tree trimming guide hook for power line maintenance as described in claim 7, characterized in that, The column has a stop bar formed on its side, which is located below the horizontal bar and is used to support the vertical section from the outside.

9. The tree trimming guide hook for power line maintenance as described in claim 7, characterized in that, The lower side of the sleeve is provided with a soft sleeve with a notch, and the lower end of the soft sleeve extends outward to form an outer edge.

10. The tree trimming guide hook for power line maintenance as described in claim 2, characterized in that, Both the inner side of the curved section and the inner side of the hook have a serrated structure.

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