A lifting device for overhead power line maintenance

Abstract

The present application provides a lifting device for overhead power line maintenance, belonging to the technical field of power-assisted tools. The lifting device includes a gantry, a conductor support, and a lifting device. The gantry is used to be installed on the crossarm of a power tower; the conductor support is arranged on the gantry and moves relative to the gantry in a first direction so that the conductor support lifts the conductor; one end of the lifting device is installed on the gantry and the other end is installed on the conductor support, and is used to drive the conductor support to move relative to the gantry in the first direction. This avoids the need for workers on power towers to manually replace support insulators while carrying conductors on their shoulders, ensuring the personal safety of workers and effectively reducing the workload of workers on power towers.

Description

Technical Field

[0001] The present application belongs to the technical field of power-assisted tools, and specifically relates to a lifting device for overhead power line maintenance. Background Art

[0002] Support insulators are crucial components in overhead power lines, providing insulation and supporting the weight of conductors. Damaged support insulators require prompt repair and replacement. This process requires lifting the conductors they support to a certain height. Currently, due to a lack of effective lifting tools, manual lifting often requires standing on the tower and carrying the conductors on their shoulders. This is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0003] Therefore, the purpose of this application is to provide a lifting device for overhead power line maintenance, which at least solves one technical problem existing in the prior art.

[0004] In order to solve the above problems, the present application provides a lifting device for overhead power line maintenance, including a gantry, a conductor support and a lifting device, wherein the gantry is used to be installed on the cross arm of the power pole tower; the conductor support is arranged on the gantry and moves relative to the gantry in a first direction so that the conductor support lifts the conductor; the conductor support includes a horizontal support and a vertical support, the vertical support is arranged on the horizontal support and is arranged vertically relative to the horizontal support, and the horizontal support can be extended or shortened to hook the conductor; one end of the lifting device is installed on the gantry, and the other end is installed on the conductor support, and is used to drive the conductor support to move relative to the gantry in the first direction.

[0005] Optionally, a first hook is provided at both ends of the horizontal bracket; and a second hook is provided at one end of the vertical bracket away from the horizontal bracket.

[0006] Optionally, a first locking portion is provided on the horizontal bracket for locking the horizontal bracket on the gantry.

[0007] Optionally, a second locking portion is provided on the vertical bracket for locking the vertical bracket on the gantry.

[0008] Optionally, the gantry includes a column and a beam, the beam is arranged at the top of the column, a slide is provided on the column, a through hole is provided on the beam, the horizontal bracket passes through the slide, the vertical bracket passes through the through hole, and the horizontal bracket moves along the slide to make the wire bracket move along the first direction relative to the gantry.

[0009] Optionally, the gantry includes a fixing fixture, and the fixing fixture is provided at the bottom end of the column of the gantry, and the fixing fixture is used to clamp the power pole tower cross arm so that the gantry is fixed on the power pole tower cross arm.

[0010] Optionally, the fixing fixture includes a third hook, a base and a tightening bolt, the base is arranged at the bottom end of the column of the gantry, the third hook is arranged at one end of the base, and the other end of the base is screwed with the tightening bolt.

[0011] Optionally, the lifting device includes a first pulley, a second pulley and a traction rope, the first pulley is arranged on the crossbeam of the gantry, and the second pulley is arranged on the horizontal support of the wire support;

[0012] The traction rope includes a first end and a second end; the first end is fixed to the crossbeam of the gantry, and the second end passes through the second pulley and the first pulley in sequence and then passes out from the first pulley.

[0013] Optionally, the second end of the traction rope is provided with a ring.

[0014] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0015] An embodiment of the present application provides a lifting device for overhead power line maintenance, which fixes the lifting device to the cross arm of the power pole tower by a fixing clamp, and ensures that the lifting device is fixed along a first direction; adjusts the conductor bracket to correspond to the conductor on the power pole tower; pulls the traction rope to move the conductor bracket along the first direction toward the side away from the fixing clamp to lift the conductor; then tightens the first locking part and the second locking part on the conductor bracket to fix the conductor bracket on the gantry; avoids the workers on the power pole tower from manually replacing the support insulators while carrying the conductor on their shoulders, ensures the personal safety of the workers, and effectively reduces the work intensity of the workers on the power pole tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a lifting device for overhead power line maintenance according to an embodiment of the present application;

[0017] Figure 2 This is a side view of a lifting device for overhead power line maintenance according to an embodiment of the present application.

[0018] The reference numerals indicate:

[0019] 1. Gantry; 101. Slide; 102. Fixing fixture;

[0020] 2. Wire support; 201. Horizontal support; 202. Vertical support; 203. First hook; 204. Second hook; 205. First locking portion; 206. Second locking portion;

[0021] 3. Lifting device; 301. First pulley; 302. Second pulley; 303. Traction rope. DETAILED DESCRIPTION

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] See also Figure 1 and Figure 2As shown, according to an embodiment of the present application, a lifting device for overhead power line maintenance is provided, including a gantry 1, a conductor support 2 and a lifting device 3; the gantry 1 is used to be installed on the cross arm of the power pole tower; the conductor support 2 is arranged on the gantry 1 and moves relative to the gantry 1 in a first direction so that the conductor support 2 lifts the conductor; one end of the lifting device 3 is installed on the gantry 1, and the other end is installed on the conductor support 2, and is used to drive the conductor support 2 to move relative to the gantry 1 in the first direction.

[0027] Fix the lifting device on the cross arm of the power pole tower and ensure that the lifting device is fixed along the first direction; adjust the conductor bracket 2 so that it corresponds to the conductor on the power pole tower; the lifting device 3 drives the conductor bracket 2 to move along the first direction toward the side away from the cross arm of the power pole tower to lift the conductor; then fix the position of the conductor bracket 2 so that the conductor remains in the lifted state; this avoids the workers on the power pole tower from manually replacing the support insulators while carrying the conductor on their shoulders, ensuring the personal safety of the workers and effectively reducing the work intensity of the workers on the power pole tower.

[0028] Among them, the gantry 1 is used to be installed on the cross arm of the power pole tower; the conductor support 2 is arranged on the gantry 1 and moves along the first direction relative to the gantry 1 so that the conductor support 2 lifts the conductor; that is, the conductor support 2 can move on the gantry 1 to adjust the height of the conductor support 2 and then lift the conductor.

[0029] The first direction refers to the height direction of the gantry 1 , that is, the conductor support 2 can move along the height direction of the gantry 1 , thereby lifting the conductor.

[0030] In another embodiment, the wire support 2 includes a horizontal support 201 and a vertical support 202. The vertical support 202 is provided on the horizontal support 201 and is arranged perpendicular to the horizontal support 201. The horizontal support 201 can be extended or shortened to hook the wire.

[0031] Horizontal support 201 is used to lift conductors below gantry 1, while vertical support 202 is used to lift conductors above gantry 1. This effectively solves the problem of conductor lifting difficulties during post insulator replacement. The conductor support 2, consisting of horizontal support 201 and vertical support 202, saves time and effort, and improves work efficiency.

[0032] The horizontal support 201 includes a fixed portion and a telescopic portion. The fixed portion is mounted on the gantry 1 and arranged horizontally. The telescopic portion includes a connecting end and a lifting end. The connecting end is slidably connected to the fixed portion, and the lifting end is used to hook the wire. By rotating the nut screwed to the fixed portion, the nut and the fixed portion are loosened. At this time, the telescopic portion is pulled or pushed to extend or shorten relative to the fixed portion. The nut is then rotated to lock the fixed portion, so that the lifting end contacts the wire, which is used to lift the wire.

[0033] Specifically, when the rotating nut and the fixing part are loosened, the telescopic part is pulled to move away from the gantry 1 to extend the horizontal bracket 201 of the wire bracket 2, and then the nut is rotated to lock the fixing part; when the rotating nut and the fixing part are loosened, the telescopic part is pushed to move toward the gantry 1 to shorten the horizontal bracket 201 of the wire bracket 2, and then the nut is rotated to lock the fixing part.

[0034] Among them, the vertical bracket 202 includes a vertical part and a horizontal part. One end of the vertical part is fixed at the middle position of the fixed part of the horizontal bracket 201, and the other end passes through the top of the gantry 1 to connect with the horizontal part. The horizontal part and the horizontal bracket 201 are arranged parallel to each other.

[0035] In another embodiment, first hooks 203 are provided at both ends of the horizontal support 201, and second hooks 204 are provided at the end of the vertical support 202 away from the horizontal support 201. The first hooks 203 are used to lift conductors below the gantry 1. The second hooks 204 are used to lift conductors above the gantry 1. The first and second hooks 203 and 204 prevent the conductors from slipping during the lifting process.

[0036] Wherein, rubber pads are provided on the upper surfaces of the first hook 203 and the second hook 204 to prevent the wire from being worn during the lifting process.

[0037] Specifically, in this embodiment, the first hook 203 and the second hook 204 are semicircular hooks, and in other embodiments they may be triangular or inverted trapezoidal. The specific shapes of the first hook 203 and the second hook 204 are determined according to specific working conditions.

[0038] In another embodiment, the horizontal bracket 201 is provided with a first locking portion 205 for locking the horizontal bracket 201 on the gantry 1. After adjusting the relative position of the wire bracket 2 on the gantry 1, the horizontal bracket 201 is fixed to the gantry 1 by the first locking portion 205.

[0039] Among them, external threads are provided at both ends of the fixed part of the horizontal bracket 201, and the first locking part 205 is a nut, which is screwed on the fixed part of the horizontal bracket 201, and then by rotating the position of the nut on the horizontal bracket 201, the nut is pressed against the gantry 1, and then the horizontal bracket 201 is fixed on the gantry 1, or the horizontal bracket 201 is made movable relative to the gantry 1.

[0040] In another embodiment, a second locking portion 206 is provided on the vertical bracket 202 for locking the vertical bracket 202 on the gantry 1. After adjusting the relative position of the wire bracket 2 on the gantry 1, the vertical bracket 202 is fixed to the gantry 1 by the second locking portion 206.

[0041] The second locking portion 206 is a nut, and the vertical portion of the vertical support 202 is processed with an external thread, which is threadedly connected to the nut. The position of the nut on the vertical support 202 is adjusted to fix the vertical support 202 on the gantry 1 through the nut.

[0042] In another embodiment, the gantry 1 includes a column and a beam, the beam is arranged at the top of the column, a slide 101 is opened on the column, and a through hole is opened on the beam. The horizontal bracket 201 passes through the slide 101, and the vertical bracket 202 passes through the through hole. The horizontal bracket 201 moves along the slide 101 so that the wire bracket 2 moves along the first direction relative to the gantry 1.

[0043] A slideway 101 is provided on the column, and the slideway 101 serves as a sliding path for the horizontal bracket 201 , restricting the horizontal bracket 201 to move only along the slideway 101 .

[0044] The crossbeam is provided with a through hole for mounting the vertical support 202 on the gantry 1. This through hole also serves to limit the movement path of the vertical support 202. This also ensures that the horizontal support 201 does not move in the width direction of the gantry 1 during the movement of the conductor support 2.

[0045] In another embodiment, the gantry 1 includes a fixing fixture 102. The fixing fixture 102 is provided at the bottom end of the gantry 1 column. The fixing fixture 102 is used to clamp the crossarm of the power tower to secure the gantry 1 to the crossarm of the power tower. The provision of the fixing fixture 102 enables rapid installation and removal of the lifting device from the crossarm of the power tower.

[0046] In another embodiment, the fixing fixture 102 includes a third hook, a base and a tightening bolt. The base is arranged at the bottom end of the column of the gantry 1, the third hook is arranged at one end of the base, and the other end of the base is screwed with a tightening bolt.

[0047] The base is a right-angled structure, with one arm for mounting a third hook and the other for attaching a jacking bolt. To use it, the third hook is first hooked onto the crossarm of the power tower, and then the jacking bolt is turned to secure the lifting device to the crossarm.

[0048] In another embodiment, the lifting device 3 includes a first pulley 301, a second pulley 302 and a traction rope 303, wherein the first pulley 301 is arranged on the crossbeam of the gantry 1, and the second pulley 302 is arranged on the horizontal support 201 of the conductor support 2;

[0049] The traction rope 303 includes a first end and a second end. The first end is fixed to the crossbeam of the gantry 1, and the second end passes through the second pulley 302 and the first pulley 301, respectively, before exiting the first pulley 301. The lifting device 3 composed of the first pulley 301, the second pulley 302, and the traction rope 303 significantly reduces the pulling force exerted by ground operators when lifting the wire.

[0050] Among them, the first pulley 301 is set on the crossbeam of the gantry 1, and the second pulley 302 is set on the horizontal bracket 201 of the wire support 2. That is to say, the first pulley 301 and the second pulley 302 are arranged relative to each other. During use, the position of the first pulley 301 remains unchanged, and the second pulley 302 is installed on the horizontal bracket 201, so it moves along the height direction of the gantry 1 with the horizontal bracket 201, so that the wire support 2 lifts the wire.

[0051] Specifically, when the ground operator pulls the traction rope 303, the second pulley 302 moves toward the first pulley 301. At this time, the distance between the first pulley 301 and the second pulley 302 gradually decreases until the conductor support 2 lifts the conductor and the ground operator stops pulling.

[0052] When the second pulley 302 moves away from the first pulley 301 , the distance between the first pulley 301 and the second pulley 302 gradually increases, and the wire support 2 is retracted to complete the wire support.

[0053] The traction rope 303 includes a first end and a second end. The first end is fixed to the crossbeam of the gantry 1. Specifically, a ring-shaped body is welded to the crossbeam of the gantry 1. The first end of the traction rope 303 is fixed to the ring-shaped body to facilitate the removal and connection of the traction rope 303. The second end passes through the second pulley 302 and the first pulley 301, and then exits from the first pulley 301. In other words, the second end of the traction rope 303 extends from the ring toward the second pulley 302, passes through the second pulley 302, and then extends toward the first pulley 301. After passing through the first pulley 301, it extends vertically to one end of the fixing fixture 102 of the gantry 1.

[0054] In another embodiment, a ring is provided at the second end of the traction rope 303. The ring prevents the traction rope 303 from slipping off the first pulley 301, so as to prevent the traction rope 303 from having to be passed through the first pulley 301 again during subsequent use.

[0055] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0056] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A lifting device for overhead power line maintenance, characterized in that: include: A gantry (1), the gantry (1) being used for installation on a cross arm of a power tower; A conductor support (2), the conductor support (2) being arranged on the gantry (1) and moving relative to the gantry (1) in a first direction so that the conductor support (2) lifts the conductor; The wire support (2) comprises a horizontal support (201) and a vertical support (202), wherein the vertical support (202) is arranged on the horizontal support (201) and is arranged vertically relative to the horizontal support (201), and the horizontal support (201) can be extended or shortened to hook the wire; A lifting device (3), one end of the lifting device (3) is mounted on the gantry (1), and the other end is mounted on the wire support (2), and is used to drive the wire support (2) to move relative to the gantry (1) along a first direction; The gantry (1) comprises a column and a crossbeam, wherein the crossbeam is arranged at the top of the column, a slideway (101) is provided on the column, and a through hole is provided on the crossbeam, wherein the horizontal bracket (201) passes through the slideway (101), and the vertical bracket (202) passes through the through hole, and the horizontal bracket (201) moves along the slideway (101) so that the wire bracket (2) moves relative to the gantry (1) along a first direction.

2. The lifting device for overhead power line maintenance according to claim 1, characterized in that: The two ends of the horizontal support (201) are provided with first hooks (203); and the end of the vertical support (202) away from the horizontal support (201) is provided with a second hook (204).

3. The lifting device for overhead power line maintenance according to claim 1, characterized in that: The horizontal support (201) is provided with a first locking portion (205) for locking the horizontal support (201) on the gantry (1).

4. The lifting device for overhead power line maintenance according to claim 3, characterized in that: The vertical support (202) is provided with a second locking portion (206) for locking the vertical support (202) on the gantry (1).

5. The lifting device for overhead power line maintenance according to claim 1, characterized in that: The gantry (1) further comprises a fixing fixture (102), the fixing fixture (102) being provided at the bottom end of the column of the gantry (1), and the fixing fixture (102) being used for clamping the power pole tower cross arm so that the gantry (1) is fixed on the power pole tower cross arm.

6. The lifting device for overhead power line maintenance according to claim 5, characterized in that: The fixing fixture (102) comprises a third hook, a base and a tightening bolt, wherein the base is arranged at the bottom end of the column of the gantry (1), the third hook is arranged at one end of the base, and the other end of the base is screwed with the tightening bolt.

7. The lifting device for overhead power line maintenance according to claim 1, characterized in that: The lifting device (3) comprises a first pulley (301), a second pulley (302) and a traction rope (303), wherein the first pulley (301) is arranged on the crossbeam of the gantry (1), and the second pulley (302) is arranged on the horizontal support (201) of the wire support (2); The traction rope (303) includes a first end and a second end; the first end is fixed to the crossbeam of the gantry (1), and the second end passes through the second pulley (302) and the first pulley (301) in sequence and then passes out from the first pulley (301).

8. The lifting device for overhead power line maintenance according to claim 7, characterized in that: The second end of the traction rope (303) is provided with a ring.

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