Lifting device for overhead power line maintenance

Abstract

The invention provides a lifting device for overhead power line maintenance, and belongs to the technical field of power auxiliary tools, the lifting device comprises a portal frame, a wire support and a lifting device, the portal frame is used for being installed on a cross arm of a power tower; the wire bracket is arranged on the portal frame and moves along a first direction relative to the portal frame, so that the wire bracket lifts a wire; one end of the lifting device is installed on the portal frame, the other end of the lifting device is installed on the wire support, and the lifting device is used for driving the wire support to move relative to the portal frame in the first direction. The operation personnel on the electric power pole tower are prevented from carrying the lead on the shoulder and manually replacing the post insulator at the same time, the personal safety of the operation personnel is ensured, and the operation intensity of the operation personnel on the electric power pole tower is effectively reduced.

Description

Technical Field

[0001] This application belongs to the technical field of electric power auxiliary tools, and particularly relates to a lifting device for overhead power line maintenance. Background Art

[0002] Support insulators are one of the important components in overhead power lines, playing the roles of insulation and supporting the weight of the conductors. When the support insulators are damaged, they need to be repaired and replaced in a timely manner. During the operation of repairing and replacing the support insulators, the conductors supported by them need to be lifted to a certain height. Currently, there is a lack of effective lifting tools, and often manual labor is required to stand on the pole tower and shoulder-lift the conductors, which is time-consuming and laborious, and the work efficiency is relatively low. Summary of the Invention

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

[0004] To solve the above problems, this application provides a lifting device for overhead power line maintenance, including a gantry, a conductor support, and a lifting device. 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 perpendicularly arranged relative to the horizontal support. The horizontal support can be extended or shortened and is used 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, first hooks are arranged at both ends of the horizontal support; a second hook is arranged at one end of the vertical support far from the horizontal support.

[0006] Optionally, a first locking portion is arranged on the horizontal support and is used to lock the horizontal support on the gantry.

[0007] Optionally, a second locking portion is arranged on the vertical support and is used to lock the vertical support on the gantry.

[0008] Optionally, the gantry includes columns and a cross beam. The cross beam is arranged at the top of the columns. Slideways are opened on the columns, and through holes are opened on the cross beam. The horizontal support passes through the slideways, and the vertical support passes through the through holes. The horizontal support moves along the slideways so that the conductor support moves relative to the gantry in the first direction.

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

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

[0011] Optionally, the lifting device includes a first pulley, a second pulley and a towing rope. The first pulley is provided on the cross beam of the gantry, and the second pulley is provided on the horizontal bracket of the wire support. The towing rope includes a first end and a second end. The first end is fixed on the cross beam of the gantry. After the second end passes through the second pulley and the first pulley in sequence, it passes out from the first pulley.

[0012] Optionally, a ring is provided at the second end of the towing rope.

[0013] By means of the above technical solution, the invention of the present application has at least the following beneficial effects: The embodiment of the present application provides a lifting device for overhauling an overhead power line. The lifting device is fixed on the cross arm of the power pole tower through a fixing fixture, and it is ensured that the lifting device is fixed along the first direction; the wire support is adjusted to correspond to the wire on the power pole tower; the towing rope is pulled to make the wire support move along the first direction towards the side away from the fixing fixture to lift the wire; then the first locking part and the second locking part on the wire support are tightened to fix the wire support on the gantry; it avoids the operation personnel on the power pole tower from manually replacing the post insulator while carrying the wire on their shoulders. In addition to ensuring the personal safety of the staff, it effectively reduces the operation intensity of the staff on the power pole tower. Description of the Drawings

[0014] Figure 1 It is the front view of the lifting device for overhauling an overhead power line according to the embodiment of the present application; Figure 2 It is the side view of the lifting device for overhauling an overhead power line according to the embodiment of the present application.

[0015] The reference numerals are shown as: 1. Gantry; 101. Slideway; 102. Fixing fixture; 2. Wire support; 201. Horizontal bracket; 202. Vertical bracket; 203. First hook; 204. Second hook; 205. First locking part; 206. Second locking part; 3. Lifting device; 301. First pulley; 302. Second pulley; 303. Traction rope. Detailed implementation manners

[0016] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0018] In the present application, unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The preferred embodiments of the present invention will be 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.

[0020] Referring jointly to Figure 1 and Figure 2 As shown, according to an embodiment of the present application, a lifting device for overhauling overhead power lines is provided, which includes a gantry 1, a wire support 2 and a lifting device 3. The gantry 1 is used to be installed on the cross arm of a power pole. The wire support 2 is arranged on the gantry 1 and moves relative to the gantry 1 in a first direction so that the wire support 2 lifts the wire. One end of the lifting device 3 is installed on the gantry 1 and the other end is installed on the wire support 2, and is used to drive the wire support 2 to move relative to the gantry 1 in the first direction.

[0021] 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 wire support 2 to correspond to the wire on the power pole tower; the lifting device 3 drives the wire support 2 to move along the first direction towards the side away from the cross arm of the power pole tower to lift the wire; then fix the position of the wire support 2 so that the wire remains in the lifted state; this avoids the need for workers on the power pole tower to manually replace the post insulator while carrying the wire on their shoulders. In addition to ensuring the personal safety of the workers, it effectively reduces the working intensity of the workers on the power pole tower.

[0022] Among them, the gantry 1 is used to be installed on the cross arm of the power pole tower; the wire support 2 is arranged on the gantry 1 and moves relative to the gantry 1 along the first direction so that the wire support 2 can lift the wire; that is to say, the wire support 2 can move on the gantry 1 to adjust the height of the wire support 2, and then lift the wire.

[0023] The first direction refers to the height direction of the gantry 1, that is to say, the wire support 2 can move along the height direction of the gantry 1 to lift the wire.

[0024] In another embodiment, the wire support 2 includes a horizontal support 201 and a vertical support 202. The vertical support 202 is arranged on the horizontal support 201 and is vertically arranged relative to the horizontal support 201. The horizontal support 201 can be extended or shortened to hook the wire.

[0025] The horizontal support 201 is used to lift and hoist the wire below the gantry 1; the vertical support 202 is used to lift and hoist the wire above the gantry 1. This effectively solves the problem of difficult wire lifting during the process of replacing the post insulator, and through the wire support 2 composed of the horizontal support 201 and the vertical support 202, it saves time and effort and can improve work efficiency.

[0026] Among them, the horizontal support 201 includes a fixed part and a telescopic part. The fixed part is installed on the gantry 1 and is arranged in the horizontal direction. The telescopic part includes a connection end and a lifting end. The connection end is slidably connected to the fixed part, and the lifting end is used to hook the wire. By rotating the nut screwed on the fixed part, the nut is loosened from the fixed part. At this time, pull or push the telescopic part to extend or shorten relative to the fixed part, and then rotate the nut to lock it on the fixed part so that the lifting end contacts the wire to lift the wire.

[0027] Specifically, when the rotating nut is loosened from the fixed part, pull the telescopic part to move away from the gantry 1 to extend the horizontal support 201 of the wire support 2, and then rotate the nut to lock the fixed part; when the rotating nut is loosened from the fixed part, push the telescopic part to move towards the gantry 1 to shorten the horizontal support 201 of the wire support 2, and then rotate the nut to lock the fixed part.

[0028] Among them, the vertical support 202 includes a vertical portion and a horizontal portion. One end of the vertical portion is fixed at the middle position of the fixing portion of the horizontal support 201, and the other end passes through the top of the gantry 1 and is connected to the horizontal portion. The horizontal portion is arranged parallel to the horizontal support 201.

[0029] In another embodiment, first hooks 203 are provided at both ends of the horizontal support 201; second hooks 204 are provided at one end of the vertical support 202 away from the horizontal support 201. The wire lower than the gantry 1 is lifted by the first hooks 203. The wire higher than the gantry 1 is lifted by the second hooks 204. The first hooks 203 and the second hooks 204 can prevent the wire from sliding during the lifting process.

[0030] Among them, rubber pads are provided on the upper surfaces of the first hooks 203 and the second hooks 204 to prevent the wire from being worn during the lifting process.

[0031] Specifically, in this embodiment, the first hooks 203 and the second hooks 204 are semi-circular hooks, and in other embodiments, they can also be triangular or inverted trapezoidal; the specific shapes of the first hooks 203 and the second hooks 204 are determined according to the specific working conditions.

[0032] In another embodiment, a first locking portion 205 is provided on the horizontal support 201 for locking the horizontal support 201 on the gantry 1. After adjusting the relative position of the wire support 2 on the gantry 1, the horizontal support 201 is fixed on the gantry 1 through the first locking portion 205.

[0033] Among them, external threads are provided at both ends of the fixing portion of the horizontal support 201, and the first locking portion 205 is a nut, which is screwed onto the fixing portion of the horizontal support 201. Then, by rotating the position of the nut on the horizontal support 201, the nut is tightened against the gantry 1, and then the horizontal support 201 is fixed on the gantry 1, or the horizontal support 201 is made to move relative to the gantry 1.

[0034] In another embodiment, a second locking portion 206 is provided on the vertical support 202 for locking the vertical support 202 on the gantry 1. After adjusting the relative position of the wire support 2 on the gantry 1, the vertical support 202 is fixed on the gantry 1 through the second locking portion 206.

[0035] Among them, the second locking portion 206 is a nut, and external threads are processed on the vertical portion of the vertical support 202, 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.

[0036] In another embodiment, the gantry 1 includes columns and a crossbeam. The crossbeam is disposed at the top of the columns. A slideway 101 is formed in the columns, and a through hole is formed in the crossbeam. The horizontal bracket 201 passes through the slideway 101, and the vertical bracket 202 passes through the through hole. The horizontal bracket 201 moves along the slideway 101 to enable the wire bracket 2 to move relative to the gantry 1 in a first direction.

[0037] Wherein, a slideway 101 is formed in the columns. The slideway 101 serves as the sliding path of the horizontal bracket 201, restricting the horizontal bracket 201 to only move along the slideway 101.

[0038] Wherein, a through hole is formed in the crossbeam. The through hole is used to realize the installation of the vertical bracket 202 on the gantry 1. It is also used to restrict the movement path of the vertical bracket 202. At the same time, it can also ensure that the horizontal bracket 201 does not move in the width direction of the gantry 1 during the movement of the wire bracket 2.

[0039] In another embodiment, the gantry 1 includes a fixed fixture 102. The fixed fixture 102 is disposed at the bottom end of the columns of the gantry 1. The fixed fixture 102 is used to clamp the cross arm of the power pole tower so that the gantry 1 is fixed on the cross arm of the power pole tower. Through the setting of the fixed fixture 102, the rapid installation and disassembly of the lifting device on the cross arm of the power pole tower can be realized.

[0040] In another embodiment, the fixed fixture 102 includes a third hook, a base, and a tightening bolt. The base is disposed at the bottom end of the columns of the gantry 1. The third hook is disposed at one end of the base, and the tightening bolt is screwed to the other end of the base.

[0041] Wherein, the base is a right-angled base. One of the arms is used to install the third hook, and the other arm is used to screw the tightening bolt. During use, first hook the third hook on the cross arm of the power pole tower, and then rotate the tightening bolt to fasten the lifting device on the cross arm of the power pole tower.

[0042] In another embodiment, the lifting device 3 includes a first pulley 301, a second pulley 302, and a towing rope 303. The first pulley 301 is disposed on the crossbeam of the gantry 1, and the second pulley 302 is disposed on the horizontal bracket 201 of the wire bracket 2; The towing rope 303 includes a first end and a second end; the first end is fixed on 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 exits from the first pulley 301. The lifting device 3 composed of the first pulley 301, the second pulley 302, and the towing rope 303 greatly reduces the pulling force of the ground operators when lifting the wire.

[0043] Among them, the first pulley 301 is arranged on the crossbeam of the gantry 1, and the second pulley 302 is arranged on the horizontal bracket 201 of the wire bracket 2. That is to say, the first pulley 301 and the second pulley 302 are arranged oppositely. During use, the position of the first pulley 301 remains unchanged all the time, while the second pulley 302 is installed on the horizontal bracket 201, so it moves along the height direction of the gantry 1 together with the horizontal bracket 201 to lift the wire by the wire bracket 2.

[0044] Specifically, when the ground operator pulls the towing rope 303, the second pulley 302 moves towards the first pulley 301. At this time, the distance between the first pulley 301 and the second pulley 302 gradually decreases until the wire bracket 2 lifts the wire, and then the ground operator stops the pulling action.

[0045] 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. At this time, the wire bracket 2 retracts to complete the wire support.

[0046] Among them, the towing rope 303 includes a first end and a second end; the first end is fixed on the crossbeam of the gantry 1. That is to say, a ring is welded on the crossbeam of the gantry 1, and the first end of the towing rope 303 is fixed on the ring, which is convenient for the disassembly and connection of the towing rope 303. After the second end passes through the second pulley 302 and the first pulley 301 in sequence, it passes out from the first pulley 301. That is to say, the second end of the towing rope 303 extends from the ring towards the second pulley 302, passes through the second pulley 302 and then extends towards the first pulley 301, and after passing through the first pulley 301, it hangs vertically towards one end of the fixed fixture 102 of the gantry 1.

[0047] In another embodiment, a ring is provided at the second end of the towing rope 303. The provision of the ring prevents the towing rope 303 from slipping off the first pulley 301, so as to prevent the need to re-pass the towing rope 303 through the first pulley 301 during subsequent use.

[0048] Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous ways can be freely combined and superimposed.

[0049] The above are only the 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 principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the technical principle of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. An elevating device for overhauling overhead power lines, characterized in that, Comprising: A gantry (1) for mounting on the cross arm of a power pole tower; A wire support (2) disposed on the gantry (1) and movable relative to the gantry (1) in a first direction to lift the wire by the wire support (2); The wire support (2) includes a horizontal support (201) and a vertical support (202). The vertical support (202) is disposed on the horizontal support (201) and is perpendicularly arranged relative to the horizontal support (201). The horizontal support (201) can be extended or shortened to hook the wire; A lifting device (3) with one end mounted on the gantry (1) and the other end mounted on the wire support (2) for driving the wire support (2) to move relative to the gantry (1) in the first direction.

2. The lifting device for overhauling overhead power lines according to claim 1, characterized in that, First hooks (203) are provided at both ends of the horizontal support (201); a second hook (204) is provided at one end of the vertical support (202) away from the horizontal support (201).

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

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

5. The lifting device for overhead power line maintenance according to claim 1, characterized in that, The gantry (1) includes columns and a cross beam. The cross beam is disposed at the top of the columns. A slideway (101) is formed on the columns, and a through hole is formed on the cross beam. The horizontal support (201) passes through the slideway (101), and the vertical support (202) passes through the through hole. The horizontal support (201) moves along the slideway (101) to enable the wire support (2) to move relative to the gantry (1) in the first direction.

6. The lifting device for overhead power line maintenance according to claim 5, characterized in that, The gantry (1) further includes a fixed clamp (102). The fixed clamp (102) is disposed at the bottom end of the column of the gantry (1) and is used for clamping the cross arm of the power pole tower to fix the gantry (1) on the cross arm of the power pole tower.

7. The lifting device for overhead power line maintenance according to claim 6, characterized in that, The fixed clamp (102) includes a third hook, a base, and a tightening bolt. The base is disposed at the bottom end of the column of the gantry (1). The third hook is disposed at one end of the base, and the tightening bolt is screwed at the other end of the base.

8. The lifting device for overhauling overhead power lines according to claim 5, characterized in that, The lifting device (3) includes a first pulley (301), a second pulley (302), and a traction rope (303). The first pulley (301) is disposed on the cross beam of the gantry (1), and the second pulley (302) is disposed 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 cross beam of the gantry (1), and the second end passes through the second pulley (302) and the first pulley (301) in sequence and then exits from the first pulley (301).

9. The lifting device for overhead power line maintenance according to claim 8, wherein, A ring is provided at the second end of the traction rope (303).

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