An overhead power transmission line live tree cleaning cutter

Abstract

The application relates to the technical field of power transmission line maintenance equipment, in particular to an overhead power transmission line live-line tree cleaning cutter which comprises a handheld part and a supporting rod connected in sequence, an upper clamping part and a lower clamping part are fixedly arranged at the top of the supporting rod; a lower supporting plate is fixedly arranged at the bottom of the lower clamping part, an inner plate which is in sliding connection with an outer plate is arranged above the lower supporting plate, an outer plate spring is fixedly arranged between the outer plate and the lower supporting part; the middle of the bottom of the inner plate is fixedly connected with a locking rope; the locking rope is connected with a winding mechanism; the upper clamping part comprises an upper supporting plate, a saw blade group is slidingly arranged below the upper supporting plate, the two ends of the saw blade group are connected with a first steel wire rope, a second steel wire rope and a gear transmission belt, the gear transmission belt is in transmission connection with a motor which is fixedly installed on the supporting rod; all the electric control components of the application are arranged below, the parts for processing tree branches are all operated in a non-electrified mode and will not be interfered by the strong magnetic field of the overhead power transmission line.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission line maintenance equipment, and in particular to a tree cutter for live cleaning of overhead power transmission lines. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] With the development of society, the construction of power transmission lines has spread throughout the country. At the same time, the national ecological construction is also continuously promoted, resulting in an increasing number of trees. Power transmission lines often pass through forest land and are erected on rural roads, which leads to increasingly prominent tree-line conflicts, seriously threatening the safety of the public, the power grid, and the safety of operating personnel. Mengyin County is located in the hinterland of Yimeng Mountain, and the mountainous area is rich in fruit industry. Every year, various voltage level lines have accidents of ground tripping, overcurrent tripping, and short-circuit quick tripping due to trees and saplings in the line channel touching the live line or branches falling on the live line, affecting power supply reliability, number of households during power outage, and many other indicators.

[0004] However, in the prior art, when cleaning trees around overhead power transmission lines, power is usually cut off for cleaning. The first reason is to ensure safety, and the second reason is that most existing cleaning tools are electronic products. Due to the high voltage and strong magnetic field near overhead power transmission lines, many cleaning tools cannot work well in a strong magnetic field environment and can also cause safety hazards. On the other hand, the prior art uses shearing to cut off tree branches. This processing method has two problems. First, the falling direction of the branches is uncontrollable, and falling on the power transmission line can cause danger. Second, the effect is not ideal, and many branches are not easy to cut off.

[0005] Therefore, it is necessary to provide a tree cutter for live cleaning of overhead power transmission lines to solve the above technical problems. SUMMARY

[0006] Therefore, in view of the above technical problems, the present application provides a tree cutter for live cleaning of overhead power transmission lines.

[0007] The technical solution adopted by the present application to solve the problems existing in the prior art is as follows:

[0008] The present application provides a tree cutter for live cleaning of overhead power transmission lines, which comprises a hand-held part and a support rod connected in sequence, and an upper clamping part and a lower clamping part are fixedly arranged at the top of the support rod.

[0009] The bottom of the lower clamping part is fixedly provided with a lower supporting plate, an outer plate and an inner plate are arranged above the lower supporting plate, the inner plate is slidably arranged in an inner plate movable slot in the middle of the outer plate, an outer plate spring is fixedly arranged between the outer plate and the lower supporting plate, the bottom of the inner plate is fixedly connected with one end of a locking rope, the other end of the locking rope is connected with a winding mechanism fixedly arranged on the supporting rod after penetrating through a through hole in the lower supporting plate;

[0010] The upper clamping part comprises an upper supporting plate, a saw blade group is slidably arranged below the upper supporting plate, one end of the saw blade group is fixedly connected with one end of a first steel wire rope, the other end of the saw blade group is fixedly connected with one end of a second steel wire rope, a gear transmission belt is fixedly arranged between the other end of the first steel wire rope and the other end of the second steel wire rope, the gear transmission belt is drivingly connected with a motor fixedly arranged on the supporting rod, and the motor is electrically connected with a control device.

[0011] Preferably, a groove is fixedly arranged below the upper supporting plate.

[0012] The saw blade group comprises a groove plate slidably arranged in the groove, first and second mounting plates are fixedly arranged at both ends of the groove plate, and first and second saw blades are fixedly arranged in parallel between the first and second mounting plates.

[0013] Preferably, one side of a first connecting rod group is fixedly connected with the lower supporting plate.

[0014] The first connecting rod group comprises two first connecting rods arranged in parallel, and both sides of the lower supporting plate are fixedly connected with one end of the two first connecting rods of the first connecting rod group.

[0015] The other side of the first connecting rod group is fixedly connected with a connecting part, and the connecting part is fixedly connected with the supporting rod.

[0016] Roller groups for guiding the first and second steel wire ropes are fixedly arranged between the two first connecting rods.

[0017] Preferably, one side of a second connecting rod group is fixedly connected with the lower supporting plate.

[0018] The second connecting rod group comprises two second connecting rods arranged in parallel, and both sides of the lower supporting plate are fixedly connected with one end of the two second connecting rods of the second connecting rod group.

[0019] The other side of the second connecting rod group is fixedly connected with the connecting part.

[0020] Locking rope rollers for guiding the locking rope are fixedly arranged between the two second connecting rods.

[0021] Preferably, the outer plate is provided with an outer plate saw frame, and the inner plate is provided with an inner plate saw frame; the inner plate movable slot is provided with a plurality of sliding holes on both sides of the slot bottom, a sliding rod is slidably arranged in the sliding hole, the top end of the sliding rod is fixedly connected with the inner plate bottom, and the bottom end of the sliding rod is fixedly connected with the inner plate support table.

[0022] A plurality of inner plate springs are fixedly arranged between the inner plate support table and the lower support plate.

[0023] Preferably, the outer plate is provided with a plurality of limiting strips on both sides, and a limiting lug is fixedly arranged at the end of the limiting strip; an upper shell is fixedly arranged on the outer side of the upper support plate; a lower shell is fixedly arranged on the outer side of the lower support plate; and a limiting groove matched with the limiting lug is arranged on the inner side of the lower shell.

[0024] Preferably, an over-rope roller for guiding the locking rope is fixedly arranged in the through hole; and an over-rope groove for passing the locking rope is arranged on the bottom of the lower support plate.

[0025] Preferably, the locking rope, the first steel wire rope and the second steel wire rope are slidably arranged in the support rod and the connecting part.

[0026] A control part is arranged between the support rod and the handheld part, and the control part comprises a shell, a motor is arranged in the shell, the motor is fixedly arranged on a first fixed plate fixedly connected with the support rod, a gear is fixedly arranged on the motor shaft of the motor, and the gear is engaged with a gear transmission belt.

[0027] The two ends of the shell are fixedly connected with the support rod and the handheld part respectively.

[0028] The motor is electrically connected with a control device fixedly arranged outside the shell, the control device is electrically connected with an external power supply, and a control button for controlling the start and stop of the motor is arranged on the control device.

[0029] Preferably, the winding mechanism comprises a rotating drum, rotating shafts are arranged at both ends of the rotating drum respectively, the rotating shaft at one end of the rotating drum is rotatably connected with the shell, the rotating shaft at the other end of the rotating drum is rotatably connected with a second fixed plate and then fixedly connected with one end of a prism rod in the axial direction, and the other end of the prism rod is fixedly connected with the rotating part.

[0030] A locking part is slidably arranged outside the prism rod, the locking part comprises a locking inner frame slidably connected with the prism rod, and a locking handle is fixedly arranged on the outer side of the locking inner frame.

[0031] A locking outer frame is fixedly arranged on the second fixed plate, and the locking inner frame is located inside the locking outer frame and is slidably connected with the locking outer frame.

[0032] The second fixed plate is fixedly connected with the shell.

[0033] Preferably, the prism rod is polygonal in cross section.

[0034] Compared with the prior art, the application has the beneficial effects that:

[0035] 1. The electric components such as motors are all arranged below, the parts for processing the tree branches are all operated without electricity, and the strong magnetic field of the overhead power transmission line cannot interfere, which is reliable.

[0036] 2. Compared with the traditional processing mode of cutting the tree branches, the processing mode of sawing the tree branches in the application is better, and is suitable for various tree branches that are difficult to cut, and has good effect.

[0037] 3. After the tree branches are sawed, the sawed tree branch parts are still clamped and cannot fall, which eliminates the safety hazard that the tree branches fall on the overhead power transmission line in the traditional technology. And the sawed tree branches can be moved to other positions for processing by manually rotating the hand-held part, which is practical. BRIEF DESCRIPTION OF DRAWINGS

[0038] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof, explain the present application, and do not constitute an improper limitation of the present application.

[0039] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a tree cutter for cleaning trees on an overhead power transmission line according to the present application,

[0040] Figure 2 FIG. 2 is a schematic diagram of the internal structure of the operating part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application, Figure 1

[0041] Figure 3 FIG. 3 is a schematic diagram of the internal structure of the locking part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application,

[0042] Figure 4 FIG. 4 is a schematic diagram of the internal structure of the top part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application, Figure 3

[0043] Figure 5 FIG. 5 is a schematic diagram of the internal structure of the top part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application,

[0044] Figure 6 FIG. 6 is a schematic diagram of the internal structure of the top part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application, Figure 5

[0045] Figure 7 FIG. 7 is a schematic diagram of the internal structure of the top part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application, Figure 6

[0046] Figure 8 FIG. 8 is a schematic diagram of the internal structure of the top part of the tree cutter for cleaning trees on an overhead power transmission line according to the present application, Figure 7

[0047] ​​​​​Figure 9 The lower clamping part of the overhead power transmission line live tree cleaning tool,

[0048] Figure 10 The upper clamping part of the overhead power transmission line live tree cleaning tool,

[0049] Figure 11 The upper clamping part of the overhead power transmission line live tree cleaning tool,

[0050] Figure 12 The roller group of the overhead power transmission line live tree cleaning tool.

[0051] In the figure:

[0052] 1, hand-held part, 2, operating part, 20, shell, 21, control button, 22, rotating part, 23, locking part, 23a, locking inner frame, 23b, locking handle,

[0053] 24, gear belt, 25, gear, 26, motor, 27, first fixed plate, 28, rotating drum, 29, rotating shaft, 29a, edge rod, 29b, second fixed plate, 29c, locking outer frame,

[0054] 3, support rod, 4, upper clamping part, 40, upper shell, 41, upper support plate, 42, channel, 43, groove plate, 44, first saw blade, 45, second saw blade, 46, first mounting plate, 47, second mounting plate, 48, steel wire rope buckle, 49, first steel wire rope, 490, second steel wire rope,

[0055] 5, lower clamping part, 50, lower shell, 51, lower support plate, 510, rope passing groove, 511, rope passing roller,

[0056] 52, outer plate spring, 53, outer plate, 530, inner plate movable slot, 531, sliding hole, 532, outer plate saw frame,

[0057] 54, inner plate, 541, sliding rod,

[0058] 55, inner plate saw frame, 56, limiting strip, 561, limiting convex plate,

[0059] 57, inner plate support table, 58, inner plate spring, 59, locking rope,

[0060] 6, first connecting rod group, 7, second connecting rod group, 8, connecting part, 9, roller group, 90, roller shaft, 91, first roller, 92, second roller, 93, spacing ring, 94, limiting outer plate,

[0061] 10, locking rope roller, 11, top rod, 12, top roller. DETAILED DESCRIPTION

[0062] The application will be further described below in conjunction with the drawings and embodiments.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0064] In the present disclosure, the terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only the relationship words determined for the convenience of describing the structural relationship of the components or elements of the present disclosure, and are not intended to specify any component or element in the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0065] Reference Figure 1 , the overall structure schematic diagram of the tree cutter for live-line cleaning of overhead transmission line of the present application, the tree cutter for live-line cleaning of overhead transmission line of the present application comprises a hand-held part 1 and a supporting rod 3 connected in sequence, and the hand-held part 1 and the supporting rod 3 are both made of insulating material; the top of the supporting rod 3 is fixedly provided with an upper clamping part 4 and a lower clamping part 5; referring to Figure 6 , the bottom of the lower clamping part 5 is fixedly provided with a lower supporting plate 51, and an outer plate 53 and an inner plate 54 are arranged above the lower supporting plate 51, and the inner plate 54 is slidably arranged in an inner plate movable slot 530 in the middle of the outer plate 53; an outer plate spring 52 is fixedly arranged between the outer plate 53 and the lower supporting plate 51; the bottom middle of the inner plate 54 is fixedly connected with one end of a locking rope 59; the other end of the locking rope 59 is connected with a winding mechanism fixedly installed on the supporting rod 3 after penetrating through a through hole on the lower supporting plate 51; the upper clamping part 4 comprises an upper supporting plate 41, and a saw blade group is slidably arranged below the upper supporting plate 41, one end of the saw blade group is fixedly connected with one end of a first steel wire rope 49, and the other end of the saw blade group is fixedly connected with one end of a second steel wire rope 490; a gear transmission belt 24 is fixedly arranged between the other end of the first steel wire rope 49 and the other end of the second steel wire rope 490, and the gear transmission belt 24 is drivingly connected with a motor 26 fixedly installed on the supporting rod 3; the motor 26 is electrically connected with a control device, and the motor 26 is preferably a servo motor or a stepping motor in the present application;

[0066] When in use, the locking rope 59 is released by controlling the winding mechanism, and under the action of the outer plate spring 52, the branches to be cleaned can be clamped by the bounced outer plate 53; the motor 26 is controlled to reverse by the control device, so as to realize the reciprocating movement of the saw blade group and cut the branches reciprocally.

[0067] In some embodiments, with reference to Figure 10 , the lower side of the upper support plate 41 is fixedly provided with a channel 42; the saw blade group includes a slot plate 43 slidingly arranged in the channel 42, and the two ends of the slot plate 43 are respectively fixedly provided with a first mounting plate 46 and a second mounting plate 47, and the first mounting plate 46 and the second mounting plate 47 are fixedly provided with the first saw blade 44 and the second saw blade 45 in parallel.

[0068] With reference to Figure 5 , in some embodiments, the lower side of the upper support plate 41 is fixedly connected with one side of the first connecting rod group 6; the first connecting rod group 6 includes two first connecting rods arranged in parallel, and the lower sides of the upper support plate 41 are respectively fixedly connected with one end of the two first connecting rods of the first connecting rod group 6; the other side of the first connecting rod group 6 is fixedly connected with the connecting part 8; the connecting part 8 is fixedly connected with the support rod 3; the two first connecting rods are fixedly provided with a roller group 9 for guiding the first steel wire rope 49 and the second steel wire rope 490. With reference to Figure 12 , the roller group 9 includes a roller shaft 90 fixedly connected with the two first connecting rods at both ends, and a first roller 91 and a second roller 92 are sequentially arranged on the roller shaft 90 in rotation; a spacing ring 93 is arranged between the first roller 91 and the second roller 92, and the spacing ring 93 is fixedly arranged on the roller shaft 90; in some embodiments, a limiting outer plate 94 is fixedly arranged on the roller shaft 90 on both sides of the first roller 91 and the second roller 92.

[0069] The lower side of the lower support plate 51 is fixedly connected with one side of the second connecting rod group 7; the second connecting rod group 7 includes two second connecting rods arranged in parallel, and the lower sides of the lower support plate 51 are respectively fixedly connected with one end of the two second connecting rods of the second connecting rod group 7; the other side of the second connecting rod group 7 is fixedly connected with the connecting part 8; the two second connecting rods are fixedly provided with a locking rope roller 10 for guiding the locking rope 59.

[0070] In order to prevent the saw blade group from incompletely sawing off the branches, with reference to Figure 6 and Figure 9, the outer plate 53 is provided with an outer plate saw frame 532 in the middle, and the inner plate 54 is provided with an inner plate saw frame 55 in the middle; the inner plate movable slot 530 is provided with a plurality of sliding holes 531 on both sides of the slot bottom, a sliding rod 541 is slidably arranged in the sliding hole 531, the top end of the sliding rod 541 is fixedly connected with the bottom of the inner plate 54, and the bottom end of the sliding rod 541 is fixedly connected with the inner plate support table 57; a plurality of inner plate springs 58 are fixedly arranged between the inner plate support table 57 and the lower support plate 51.

[0071] In use, first, the branch to be sawn is placed between the upper clamping part 4 and the lower clamping part 5, then the locking rope 59 is released, the inner plate spring 58 lifts the inner plate 54, at the same time, the outer plate spring 52 lifts the outer plate 53, at this time, the saw blade group is not working, the branch is clamped between the outer plate 53 and the upper shell 40 of the upper clamping part 4, and the upper shell 40 outside the upper clamping part 4 plays a clamping role on the branch; then the motor 26 is started, the saw blade group works, and with the extension of time, the part of the branch located in the outer plate saw frame 532 is slowly sawn off, at this time, the inner plate spring 58 continues to lift the inner plate 54, so that the part of the branch located in the outer plate saw frame 532 continues to move in the direction of the upper clamping part 4, until the part of the branch is sawn off. It should be noted that the inner plate saw frame 55 and the outer plate saw frame 532 in the present application have the same internal dimensions, both of which are used to accommodate the part of the branch to be sawn. The advantage of this design is that during the sawing process of the branch, the upper shell 40 of the upper clamping part 4 and the lower shell 50 of the lower clamping part 5 can still maintain clamping on the branches on both sides to prevent the sawn-off branch from falling; at the same time, the part of the branch located in the outer plate saw frame 532 is sawn off and falls from the gap at the bottom of the lower clamping part 5, and the human eye can judge that the branch has been sawn off.

[0072] Since the tree branches at high places are usually cut off when the overhead power transmission line is cleaned, the remaining part of the branch is still connected with the tree trunk, so in some embodiments, with reference to Figure 11 , one end of the upper shell 40 is designed in an arc shape, so that the cutter of the present application only clamps the part of the branch that needs to be prevented from falling during use; after the branch is sawn off, the manually rotating the hand-held part 1 can move the sawn-off branch to prevent it from affecting the overhead power transmission line.

[0073] In some embodiments, in order to prevent the outer plate 53 from deviating during movement, a plurality of limiting strips 56 are fixedly arranged on both sides of the outer plate 53, and a limiting convex plate 561 is fixedly arranged at the end of the limiting strip 56; the outer side of the upper support plate 41 is fixedly provided with the upper shell 40; the outer side of the lower support plate 51 is fixedly provided with the lower shell 50; the inner side of the lower shell 50 is provided with a limiting groove matched with the limiting convex plate 561.

[0074] With reference to Figure 7 andFigure 8 The through hole is internally fixed with a rope passing roller 511 for guiding the locking rope 59; the bottom of the lower support plate 51 is provided with a rope passing groove 510 for passing the locking rope 59. The locking rope 59, the first steel wire rope 49 and the second steel wire rope 490 slide through the support rod 3 and the connecting part 8;

[0075] Reference Figure 1 , Figure 2 , Figure 3 And Figure 4 The support rod 3 and the hand-held part 1 are provided with a control part 2, the control part 2 comprises a shell 20, the shell 20 is internally provided with a motor 26, the motor 26 is fixedly installed on a first fixed plate 27 fixedly connected with the support rod 3; a gear 25 is fixedly sleeved on the motor shaft of the motor 26, the gear 25 is engaged with a gear transmission belt 24; the two ends of the shell 20 are fixedly connected with the support rod 3 and the hand-held part 1 respectively; the motor 26 is electrically connected with a control device fixedly arranged outside the shell 20, the control device is electrically connected with an external power supply; the control device is provided with a control button 21 for controlling the start and stop of the motor 26.

[0076] The winding mechanism comprises a rotating drum 28, the two ends of the rotating drum 28 are respectively provided with rotating shafts, the rotating shaft at one end of the rotating drum 28 is rotationally connected with the shell 20, the rotating shaft at the other end of the rotating drum 28 is rotationally connected with a second fixed plate 29b and then fixedly connected with one end of a prism rod 29a in the axial direction, the other end of the prism rod 29a is fixedly connected with the rotating part 22; the prism rod 29a is polygonal in cross section; a locking piece 23 is slidably sleeved outside the prism rod 29a, the locking piece 23 comprises a locking inner frame 23a slidably connected with the prism rod 29a, a locking handle 23b is fixedly arranged outside the locking inner frame 23a; the second fixed plate 29b is fixedly provided with a locking outer frame 29c, the locking inner frame 23a is located inside the locking outer frame 29c and is slidably connected with the locking outer frame 29c; the second fixed plate 29b is fixedly connected with the shell 20.

[0077] Working principle:

[0078] When the overhead power transmission line live tree cleaning cutter of the present application is not used:

[0079] Reference Figure 4 The locking inner frame 23a of the locking piece 23 is manually pulled out of the locking outer frame 29c, then the rotating part 22 is rotated to make the rotating drum 28 rotate so as to wind the locking rope 59 on the rotating drum 28, in this process, the inner plate 54 is pulled, the outer plate 53 is also pulled under the action of the inner plate 54, the outer plate spring 52 and the inner plate spring 58 are both compressed, and finally the surface of the outer plate 53 is parallel to the surface of the lower shell 50; then the locking inner frame 23a of the locking piece 23 is inserted into the locking outer frame 29c.

[0080] When in use:

[0081] Firstly, the branch to be sawn off is placed between the upper clamping part 4 and the lower clamping part 5, and it should be noted that, with reference to Figure 11 , the side of the branch to be sawn off connected with the trunk is placed on one side of the upper housing 40 designed in an arc shape, and the part of the branch to be prevented from falling is placed on the other side.

[0082] Secondly, the locking inner frame 23a of the locking piece 23 is pulled out of the locking outer frame 29c, and under the elastic force of the outer plate spring 52 and the inner plate spring 58, the outer plate 53, the inner plate 54 and the upper housing 40 of the upper clamping part 4 realize clamping of the branch.

[0083] Then, the control button 21 is pressed to start, the motor 26 rotates back and forth under the action of the control device, the saw blade group works, and with the extension of time, the part of the branch located in the outer plate saw frame 532 begins to be slowly sawn off, at this time the inner plate spring 58 continues to lift the inner plate 54, so that the part of the branch located in the outer plate saw frame 532 continues to move in the direction of the upper clamping part 4 until the branch is sawn off. During sawing, the hand-held part 1 can be manually rotated slightly, and after it is found that the branch on one side of the upper housing 40 designed in an arc shape has been broken, the control button 21 can be pressed to stop; or when it is observed that the sawn-off branch part falls from the gap at the bottom of the lower clamping part 5, the control button 21 is pressed to stop.

[0084] Finally, the hand-held part 1 is manually rotated to move the part of the branch that is still clamped after being sawn off away from the overhead power transmission line, and it can be taken off at a safe place.

[0085] The overhead power transmission line live tree pruning cutter of the present application is reliable because all the components requiring electricity such as the motor 26 are arranged below, the part for processing the tree branches is operated without electricity, and it is not disturbed by the strong magnetic field of the overhead power transmission line. Compared with the traditional processing mode of cutting off the branches, the processing mode of sawing off the branches of the present application is better, and it is suitable for various branches of trees that are difficult to cut off, and the effect is good. After the branches are sawn off, the sawn-off branch part is still clamped and will not fall, which eliminates the safety hazard of the branch falling on the overhead power transmission line in the traditional technology. And the hand-held part can be manually rotated to move the sawn-off branch to another position for processing, and the practicality is strong.

[0086] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0087] The above describes the specific embodiments of the present application in combination with the drawings, but is not a limitation on the protection scope of the present application, and those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the protection scope of the present application.

Claims

1. An overhead power transmission line live tree trimming cutter, comprising a hand-held part (1) and a support rod (3) connected in sequence, characterized in that: the top of the support rod (3) is fixedly provided with an upper clamping part (4) and a lower clamping part (5); the bottom of the lower clamping part (5) is fixedly provided with a lower support plate (51), and an outer plate (53) and an inner plate (54) are arranged above the lower support plate (51), the inner plate (54) is slidingly arranged in an inner plate movable slot (530) in the middle of the outer plate (53), an outer plate spring (52) is fixedly arranged between the outer plate (53) and the lower support plate (51), the bottom of the inner plate (54) is fixedly connected with one end of a locking rope (59), the other end of the locking rope (59) is connected with a winding mechanism fixedly arranged on the support rod (3) after passing through a through hole in the lower support plate (51); the upper clamping part (4) comprises an upper support plate (41), a saw blade set is slidingly arranged below the upper support plate (41), one end of the saw blade set is fixedly connected with one end of a first steel wire rope (49), the other end of the saw blade set is fixedly connected with one end of a second steel wire rope (490), a gear transmission belt (24) is fixedly arranged between the other end of the first steel wire rope (49) and the other end of the second steel wire rope (490), the gear transmission belt (24) is drivingly connected with a motor (26) fixedly arranged on the support rod (3), and the motor (26) is electrically connected with a control device; a channel (42) is fixedly arranged below the upper support plate (41); the saw blade set comprises a groove plate (43) slidingly arranged in the channel (42), first and second mounting plates (46, 47) are fixedly arranged at both ends of the groove plate (43), and first and second saw blades (44, 45) are fixedly arranged in parallel between the first and second mounting plates (46, 47); an outer plate saw frame (532) is arranged in the middle of the outer plate (53), and an inner plate saw frame (55) is arranged in the middle of the inner plate (54); a plurality of sliding holes (531) are arranged at both sides of the groove bottom of the inner plate movable slot (530), a sliding rod (541) is slidingly arranged in each of the sliding holes (531), the top end of the sliding rod (541) is fixedly connected with the bottom of the inner plate (54), and the bottom end of the sliding rod (541) is fixedly connected with an inner plate support table (57); a plurality of inner plate springs (58) are fixedly arranged between the inner plate support table (57) and the lower support plate (51); an upper outer shell (40) is fixedly arranged outside the upper support plate (41), a lower outer shell (50) is fixedly arranged outside the lower support plate (51), and one end of the upper outer shell (40) is designed in an arc shape.

2. The overhead power transmission line live tree trimming cutter according to claim 1, characterized in that: one side of a first connecting rod set (6) is fixedly connected with the lower surface of the upper support plate (41); the first connecting rod set (6) comprises two first connecting rods arranged in parallel, and both sides of the lower surface of the upper support plate (41) are fixedly connected with one end of the two first connecting rods of the first connecting rod set (6); the other side of the first connecting rod set (6) is fixedly connected with a connecting part (8), and the connecting part (8) is fixedly connected with the support rod (3). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Roller groups (9) are fixed between the two first connecting rods for guiding the first steel wire rope (49) and the second steel wire rope (490).

3. The overhead power transmission line live tree trimming cutter according to claim 1, characterized in that: The lower support plate (51) is fixedly connected to one side of the second connecting rod group (7) below; The second connecting rod group (7) comprises two second connecting rods arranged in parallel, and the lower support plate (51) is fixedly connected to one end of the two second connecting rods of the second connecting rod group (7) on both sides below; The other side of the second connecting rod group (7) is fixedly connected to the connecting part (8); Two second connecting rods are fixedly provided with a locking rope roller (10) for guiding the locking rope (59) between them.

4. The overhead power transmission line live tree trimming cutter according to claim 1, characterized in that: The outer plate (53) is fixedly provided with a plurality of limiting strips (56) on both sides, and the distal end of each limiting strip (56) is fixedly provided with a limiting convex plate (561); The outer side of the upper support plate (41) is fixedly provided with an upper shell (40); The outer side of the lower support plate (51) is fixedly provided with a lower shell (50); The inner side of the lower shell (50) is provided with a limiting groove matched with the limiting convex plate (561).

5. The overhead power transmission line live tree trimming cutter according to claim 1, characterized in that: The through hole is fixedly provided with a rope passing roller (511) for guiding the locking rope (59); and the bottom of the lower support plate (51) is provided with a rope passing groove (510) for passing the locking rope (59).

6. The overhead power transmission line live tree trimming cutter according to claim 1, characterized in that: The locking rope (59), the first steel wire rope (49) and the second steel wire rope (490) are slidably arranged in the support rod (3) and the connecting part (8); The support rod (3) and the handheld part (1) are provided with a control part (2), the control part (2) comprises a shell (20), the shell (20) is provided with a motor (26), the motor (26) is fixedly installed on a first fixed plate (27) fixedly connected to the support rod (3); the motor shaft of the motor (26) is fixedly sleeved with a gear (25), the gear (25) is engaged with a gear transmission belt (24); Both ends of the shell (20) are fixedly connected to the support rod (3) and the handheld part (1); The motor (26) is electrically connected to a control device fixedly arranged outside the shell (20), the control device is electrically connected to an external power supply; the control device is provided with a control button (21) for controlling the start and stop of the motor (26).

7. The overhead power transmission line live tree trimming cutter according to claim 6, characterized in that: The winding mechanism comprises a rotating drum (28), both ends of the rotating drum (28) are provided with rotating shafts, one rotating shaft of the rotating drum (28) is rotatably connected to the shell (20), the other rotating shaft of the rotating drum (28) is rotatably connected to a second fixed plate (29b) and then fixedly connected to one end of a prismatic rod (29a) in the axial direction, the other end of the prismatic rod (29a) is fixedly connected to the rotating part (22). The outer sliding sleeve of the prism rod (29a) is provided with a locking member (23), the locking member (23) comprises a locking inner frame (23a) in sliding connection with the prism rod (29a), and a locking handle (23b) is fixedly arranged outside the locking inner frame (23a); A locking outer frame (29c) is fixedly arranged on the second fixed plate (29b), and the locking inner frame (23a) is located inside the locking outer frame (29c) and in sliding connection with the locking outer frame (29c); The second fixed plate (29b) is fixedly connected with the shell (20).

8. The overhead power line live tree trimming cutter according to claim 7, characterized in that: The cross section of the prism rod (29a) is polygonal.

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