Auxiliary tool for power transmission line maintenance

Abstract

The invention relates to an auxiliary tool for power transmission line maintenance. The auxiliary tool comprises two supporting rods, a first hook assembly and two second hook assemblies, one ends of the two supporting rods are rotationally connected to form a switching end, the other ends of the two supporting rods are free ends, and the free ends of the two supporting rods can rotate around the switching end. And the free ends of the two supporting rods are close to each other or far away from each other, so that the included angle between the two supporting rods is adjusted. The first hook assembly is connected to the switching end, and the first hook assembly is used for being hung on a wire of a power transmission line. The two second hook assemblies are connected to the free ends of the two supporting rods in a one-to-one correspondence mode, and the two second hook assemblies are used for being connected to an iron tower of the power transmission line in a hung mode at intervals. According to the auxiliary tool, an operation supporting frame allowing an operator to stand or sit stably can be formed, high-altitude operation of the operator is facilitated, and the convenience and safety of the operator during high-altitude operation are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric power maintenance tools, and in particular to auxiliary tools for power transmission line maintenance. Background Art

[0002] With the progress of society and the development of economy, the demand for electricity in each industry is increasing, which has brought considerable pressure to the power industry. In order to meet the needs of people's lives, power companies are required to ensure the safe operation of transmission lines. However, transmission lines are exposed to the wilderness for a long time, and workers need to perform regular inspections and maintenance. For example, tension insulators may be struck by lightning due to the long-term environment or thunderstorms, causing the tension insulators to explode or fail, which will affect the safety of the transmission lines. In order to ensure the safe operation of the transmission lines, it is necessary to replace the self-exploding or failed tension insulators in a timely manner to avoid the occurrence of transmission line failures.

[0003] When inspecting the conductor end of a transmission line, such as replacing a strain insulator, workers usually operate at the cross arm of the tower. However, since the strain insulators and fittings at the conductor end of the transmission line are between 0.5 and 2.5 meters long, it is difficult for workers to inspect the conductor end at close range while sitting firmly on the cross arm of the tower. Sometimes workers need to step on the strain insulator, which not only easily damages the strain insulator, causing the insulation performance of the strain insulator to deteriorate, but also makes the operation difficult and has a high risk factor. Summary of the invention

[0004] Based on this, it is necessary to provide an auxiliary tool for transmission line maintenance in order to solve the problem of how to perform maintenance on transmission lines more safely and reliably.

[0005] The present application provides an auxiliary tool for power transmission line maintenance, comprising:

[0006] Two support rods, one end of the two support rods is rotatably connected to form a transfer end, the other ends of the two support rods are free ends, and the free ends of the two support rods can rotate around the transfer end so that the free ends of the two support rods are close to or away from each other;

[0007] A first hook component, the first hook component is connected to the adapter end, and the first hook component is used to be hung on a conductor of a power transmission line;

[0008] Two second hook assemblies are connected to the free ends of the two support rods one by one, and the two second hook assemblies are used to be hung on the iron tower of the power transmission line at intervals.

[0009] The technical solution is further described below:

[0010] In one embodiment, each of the support rods includes an outer tube and an inner tube, and the inner tube is telescopically arranged in the outer tube.

[0011] In one embodiment, the support rod also includes a positioning piece, and the outer sleeve is provided with a plurality of positioning holes spaced apart along its length direction. The positioning piece can be inserted into any of the positioning holes and connected to the inner tube to lock the length of the inner tube extending out of the outer sleeve.

[0012] In one embodiment, the first hook assembly includes a first column and a first hook, the extension direction of the first column is arranged perpendicular to the extension direction of the support rod, and one end of the first column is connected to the adapter end, and the other end of the first column is connected to the first hook, and the first hook is used to hang on the wire.

[0013] In one embodiment, the first hook is rotatably connected to the first column, and the first hook can rotate around the extension direction of the first column.

[0014] In one embodiment, the first hook includes a rod and a hook, the rod and the hook together enclose an entrance and exit for the wire to enter and exit, the entrance and exit is movably provided with a baffle, one end of the baffle is rotatably connected to the rod, and the other end of the baffle is detachably connected to the hook, and when the baffle is connected to the hook, the baffle closes the entrance and exit, and when the baffle is separated from the hook, the baffle opens the entrance and exit.

[0015] In one embodiment, the second hook assembly includes a second column and a second hook, the extension direction of the second column is arranged perpendicular to the extension direction of the support rod, and one end of the second column is connected to the free end of the support rod, and the other end of the second column is connected to the second hook, and the second hook is used to be hung on the iron tower.

[0016] In one embodiment, the second hook is rotatably connected to the second column, and the second hook can rotate around a direction perpendicular to the extension direction of the second column.

[0017] In one of the embodiments, the second hook assembly further includes a threaded fastener, which is threadedly connected to the second hook and is used for abutting against the iron tower to lock the second hook on the iron tower.

[0018] In one embodiment, the support rod, the first hook assembly and the second hook assembly are all made of aluminum alloy.

[0019] In the auxiliary tool for power transmission line maintenance, one end of the two support rods is connected by rotation to form a transfer end, and the other end of the support rod forms a free end, so that the opening and closing size of the angle between the two support rods can be adjusted by swinging the free ends of the two support rods. Specifically, when the auxiliary tool is idle, the free ends of the two support rods can be driven close to each other to close the two support rods, so as to facilitate the transportation, transfer and storage of the auxiliary tool. When it is necessary to work at height on the transmission line, the free ends of the two support rods are driven away from each other to open the two support rods to form a V-shaped structure, and then the first hook assembly is hung on the conductor of the transmission line, and the two second hook assemblies are hung at intervals on the crossarm of the iron tower of the transmission line. This allows the auxiliary tool to form a stable three-point fixed structure. At this time, the two support rods can form a work support frame for the workers to stand or sit firmly, which facilitates the workers to work at height and avoids the problem of damage to the tension insulators caused by the workers stepping on the tension insulators during work, thereby improving the convenience and safety of the workers when working at height. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0023] FIG1 is a schematic structural diagram of an auxiliary tool for power transmission line maintenance according to an embodiment.

[0024] FIG. 2 is a top view of the auxiliary tool shown in FIG. 1 .

[0025] FIG. 3 is a schematic structural diagram of a first hook assembly according to an embodiment.

[0026] FIG. 4 is a schematic structural diagram of a second hook assembly according to an embodiment.

[0027] Description of reference numerals:

[0028] 10. Support rod; 101. Adapter end; 102. Free end; 11. Outer sleeve; 111. Positioning hole; 12. Inner tube; 20. First hook assembly; 21. First column; 22. First hook; 221. Rod; 222. Hook; 223. Entrance and exit; 224. Limit nut; 23. First adapter; 231. Hanging ring; 24. Blocking piece; 30. Second hook assembly; 31. Second column; 32. Second hook; 33. Threaded fastener; 34. Second adapter; 341. Rotating shaft; 40. Wire; 50. Cross arm. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] The present application provides an auxiliary tool for power transmission line maintenance, so as to provide a support platform for high-altitude workers to sit and stand firmly during power transmission line maintenance. Specifically, referring to Figures 1 and 2, the auxiliary tool of one embodiment includes two support rods 10, a first hook assembly 20 and two second hook assemblies 30, wherein one end of the two support rods 10 is connected to form a transfer end 101, and the other ends of the two support rods 10 are free ends 102, and the free ends 102 of the two support rods 10 can be rotated around the transfer end 101, so that the free ends 102 of the two support rods 10 are close to each other or away from each other, so as to adjust the angle between the two support rods 10. The first hook assembly 20 is connected to the transfer end 101, and the first hook assembly 20 is used to be hung on the wire 40 of the power transmission line. The two second hook assemblies 30 are connected to the free ends 102 of the two support rods 10 one by one, and the two second hook assemblies 30 are used to be hung on the iron tower of the power transmission line at intervals.

[0036] In the auxiliary tool for power transmission line maintenance, one end of the two support rods 10 is connected to form a connecting end 101, and the other end of the support rod 10 is formed into a free end 102, so that the opening and closing size of the angle between the two support rods 10 can be adjusted by swinging the free ends 102 of the two support rods 10. Specifically, when the auxiliary tool is idle, the free ends 102 of the two support rods 10 can be driven to approach each other to close the two support rods 10, so as to facilitate the transportation, transfer and storage of the auxiliary tool. When it is necessary to work at height on the transmission line, the free ends 102 of the two support rods 10 are driven away from each other to open the two support rods 10 to form a V-shaped structure, and then the first hook assembly 20 is hung on the conductor 40 of the transmission line, and the two second hook assemblies 30 are hung at intervals on the crossarm 50 of the tower of the transmission line. This allows the auxiliary tool to form a stable three-point fixed structure. At this time, the two support rods 10 can form a work support frame for the workers to stand or sit firmly, which facilitates the workers to perform high-altitude operations and avoids the problem of damage to the tension insulators caused by the workers stepping on the tension insulators during operation, thereby improving the convenience and safety of the workers when working at height.

[0037] Referring to FIG. 1 and FIG. 2 , in one embodiment, each support rod 10 includes an outer sleeve 11 and an inner tube 12, and the inner tube 12 is telescopically inserted into the outer sleeve 11. In this way, the overall length of the support rod 10 can be flexibly adjusted by adjusting the length of the inner tube 12 extending out of the outer sleeve 11. Specifically, when the auxiliary tool is idle, the inner tube 12 can be retracted into the outer sleeve 11 to shorten the overall length of the support rod 10, which is convenient for the transportation, transfer and storage of the auxiliary tool. When high-altitude work is required, the length of the inner tube 12 extending out of the outer sleeve 11 can be flexibly adjusted according to the specific location to be inspected, so as to change the overall length of the support rod 10, so that the staff can inspect the target location at close range, thereby improving the versatility of the auxiliary tool and further improving the convenience of transmission line inspection.

[0038] Exemplarily, the outer sleeve 11 is 1.7 m long, and the inner tube 12 can be extended to a maximum length of 1.3 m, so that the support rod 10 can be extended to a length of 1.8 m-3 m to adapt to different maintenance scenarios.

[0039] Continuing to refer to FIG. 1 , in one embodiment, the support rod 10 further includes a positioning member (not shown), and the outer sleeve 11 is provided with a plurality of positioning holes 111 spaced apart along its length direction, and the positioning member can be inserted into any positioning hole 111 and connected to the inner tube 12 to lock the length of the inner tube 12 extending out of the outer sleeve 11. Exemplarily, the positioning member is a screw, and the inner tube 12 is provided with a threaded hole. By inserting the positioning member into a positioning hole 111 and engaging the threaded hole with the thread, the extension length of the inner tube 12 at this time can be locked, thereby ensuring the stability of the auxiliary tool and improving safety.

[0040] Optionally, in one embodiment, the support rod 10 is made of aluminum alloy. For example, the outer sleeve 11 and the inner tube 12 of the support rod 10 are both thick aluminum alloy tubes. The support rod 10 made of aluminum alloy can reduce the weight of the support rod 10 while ensuring the structural strength of the support rod 10, thereby reducing the overall weight of the auxiliary tool. During maintenance work, when the auxiliary tool is transferred using a transfer rope, it is easier for ground personnel to transfer and easier for operators on the tower to install, which can effectively save physical strength.

[0041] Referring to Fig. 3, in one embodiment, the first hook assembly 20 includes a first column 21 and a first hook 22, the extension direction of the first column 21 is arranged perpendicular to the extension direction of the support rod 10, and one end of the first column 21 is connected to the adapter end 101 of the support rod 10, and the other end of the first column 21 is connected to the first hook 22, and the first hook 22 is used to be hung on the wire 40. The first column 21 connects the support rod 10 and the first hook 22, ensuring that after the first hook 22 is hung on the wire 40, the support rod 10 and the wire 40 can maintain a certain distance, which is convenient for operators to stand or sit on the support rod 10 to inspect the wire end.

[0042] Optionally, in one embodiment, the first hook 22 is rotatably connected to the first column 21, and the first hook 22 can rotate around the extension direction of the first column 21, so that the angle of the first hook 22 can be flexibly adjusted to adapt to the insertion angles of different wires 40, thereby improving the versatility of the auxiliary tool.

[0043] Referring to Figure 3, exemplarily, in one embodiment, the first hook assembly 20 also includes a first adapter 23, one end of the first adapter 23 is fixedly connected to the end of the first column 21 away from the support rod 10, and the other end of the first adapter 23 is provided with a hanging ring 231, and the hanging ring 231 is provided with a connecting hole passing through the extension direction of the first column 21. One end of the first hook 22 can rotatably pass through the connecting hole and is connected to a limiting nut 224. The limiting nut 224 is used to axially limit the first hook 22 to prevent the first hook 22 from falling out of the connecting hole. At this time, the first hook 22 can rotate around the central axis of the connecting hole (the extension direction of the first column 21) to adapt to the penetration angles of different wires 40.

[0044] Continuing to refer to Figure 3, the first hook 22 includes a rod 221 and a hook 222. The rod 221 and the hook 222 together enclose an entrance 223 for the wire 40 to enter and exit. The entrance 223 is movably provided with a baffle 24. One end of the baffle 24 is rotatably connected to the rod 221, and the other end of the baffle 24 is detachably connected to the hook 222. When the baffle 24 is connected to the hook 222, the baffle 24 closes the entrance 223. When the baffle is separated from the hook 222, the baffle 24 opens the entrance 223. Specifically, when the first hook 22 needs to be hooked to the wire 40, first separate one end of the baffle 24 from the hook 222 to open the entrance and exit 223 of the first hook 22. The first hook 22 can be hooked to the wire 40 using the entrance and exit 223, and then connect one end of the baffle 24 to the hook 222 to close the entrance and exit 223, thereby preventing the first hook 22 from detaching from the wire 40 during operation, thereby improving the safety of the auxiliary tool.

[0045] Exemplarily, a slot is provided at one end of the baffle 24, and a limiting column is protruded from the hook 222. The slot and the limiting column are engaged with each other, so that the baffle 24 and the hook 222 can be quickly connected or separated, thereby improving the convenience of operation.

[0046] Referring to Fig. 4, in one embodiment, each second hook assembly 30 includes a second column 31 and a second hook 32, the extension direction of the second column 31 is perpendicular to the extension direction of the support rod 10, and one end of the second column 31 is connected to the free end 102 of the support rod 10, and the other end of the second column 31 is connected to the second hook 32, and the second hook 32 is used to be hung on the cross arm 50 of the iron tower. The second column 31 connects the support rod 10 and the second hook 32, ensuring that after the second hook 32 is hung on the cross arm 50 of the iron tower, the support rod 10 and the cross arm 50 of the iron tower can maintain a certain distance, so that the operator can stand or sit on the support rod 10 to inspect the end of the wire 40.

[0047] Optionally, in one embodiment, the lengths of the first hook assemblies 20 and the first hook assemblies 20 are equal, thereby ensuring that the two support rods 10 can remain in a horizontal state during operation, ensuring that the operator can stand or sit stably on the support rods 10, and improving industrial safety.

[0048] Optionally, in one embodiment, the second hook 32 is rotatably connected to the second column 31, and the second hook 32 can rotate around a direction perpendicular to the extension direction of the second column 31. In this way, the angle of the second hook 32 can be flexibly adjusted to adapt to the angles of different cross arms 50 on the tower, further improving the versatility of the auxiliary tool.

[0049] Specifically, referring to FIG. 4 , in one embodiment, the second hook assembly 30 further includes a second adapter 34, one end of which is fixedly connected to one end of the second column 31 away from the support rod 10, and the other end of the second adapter 34 is provided with a rotating shaft 341, and the extending direction of the rotating shaft 341 is perpendicular to the extending direction of the second column 31. One end of the second hook 32 is rotatably connected to the second adapter 34 through the rotating shaft 341, so that the second hook 32 can rotate around the rotating shaft 341 to adapt to the angles of different cross arms 50 on the iron tower.

[0050] Optionally, in one embodiment, the second hook assembly 30 further includes a threaded fastener 33, which is threadedly connected to the second hook 32 and is used to abut against the cross arm 50 of the iron tower to lock the second hook 32 on the iron tower. Specifically, the second hook 32 has a receiving groove for accommodating the cross arm 50 of the iron tower, and one end of the threaded fastener 33 penetrates into the receiving groove and abuts against the cross arm 50 of the iron tower in the receiving groove to lock the second hook 32 on the cross arm 50 of the iron tower.

[0051] Optionally, in one embodiment, the first hook assembly 20 and the second hook assembly 30 are both made of aluminum alloy, and illustratively, the first column 21 and the second column 31 are both aluminum alloy cylinders. The first hook assembly 20 and the second hook assembly 30 made of aluminum alloy can reduce the overall weight of the auxiliary tool while ensuring structural strength and tensile resistance. During maintenance work, when the auxiliary tool is transferred using a transfer rope, it is easier for ground personnel to transfer and for operators on the tower to install, which can effectively save physical strength.

[0052] Exemplarily, the length of the first column 21 and the length of the second column 31 are both 70cm-100cm, and the diameter of the first column 21 and the diameter of the second column 31 are both 2cm-5cm, thereby ensuring the structural strength and tensile strength of the first hook assembly 20 and the second hook assembly 30 while reducing the overall weight of the auxiliary tool.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An auxiliary tool for power transmission line maintenance, characterized in that: include: Two support rods, one end of the two support rods is rotatably connected to form a transfer end, the other ends of the two support rods are free ends, and the free ends of the two support rods can rotate around the transfer end so that the free ends of the two support rods are close to or away from each other; A first hook component, the first hook component is connected to the adapter end, and the first hook component is used to be hung on a conductor of a power transmission line; Two second hook assemblies are connected to the free ends of the two support rods one by one, and the two second hook assemblies are used to be hung on the iron tower of the power transmission line at intervals.

2. The auxiliary tool for power transmission line maintenance according to claim 1, characterized in that: Each of the support rods comprises an outer sleeve and an inner tube, and the inner tube is telescopically arranged in the outer sleeve.

3. The auxiliary tool for power transmission line maintenance according to claim 2, characterized in that: The support rod also includes a positioning piece. The outer sleeve is provided with a plurality of positioning holes spaced apart along its length direction. The positioning piece can be inserted into any of the positioning holes and connected to the inner tube to lock the length of the inner tube extending out of the outer sleeve.

4. The auxiliary tool for power transmission line maintenance according to claim 1, characterized in that: The first hook assembly includes a first column and a first hook, the extension direction of the first column is perpendicular to the extension direction of the support rod, one end of the first column is connected to the adapter end, and the other end of the first column is connected to the first hook, and the first hook is used to hang on the wire.

5. The auxiliary tool for power transmission line maintenance according to claim 4, characterized in that: The first hook is rotatably connected to the first column, and the first hook can rotate around the extension direction of the first column.

6. The auxiliary tool for power transmission line maintenance according to claim 4, characterized in that: The first hook includes a rod and a hook, the rod and the hook together enclose an entrance and exit for the wire to enter and exit, the entrance and exit is movably provided with a baffle, one end of the baffle is rotatably connected to the rod, and the other end of the baffle is detachably connected to the hook, and when the baffle is connected to the hook, the baffle closes the entrance and exit, and when the baffle is separated from the hook, the baffle opens the entrance and exit.

7. The auxiliary tool for power transmission line maintenance according to claim 1, characterized in that: The second hook assembly includes a second column and a second hook. The extension direction of the second column is perpendicular to the extension direction of the support rod, and one end of the second column is connected to the free end of the support rod, and the other end of the second column is connected to the second hook. The second hook is used to be hung on the iron tower.

8. The auxiliary tool for power transmission line maintenance according to claim 7, characterized in that: The second hook is rotatably connected to the second column, and the second hook can rotate around a direction perpendicular to the extending direction of the second column.

9. The auxiliary tool for power transmission line maintenance according to claim 1, characterized in that: The second hook assembly further comprises a threaded fastener, which is threadably connected to the second hook and is used for abutting against the iron tower to lock the second hook on the iron tower.

10. The auxiliary tool for power transmission line maintenance according to any one of claims 1 to 9, characterized in that: The support rod, the first hook assembly and the second hook assembly are all made of aluminum alloy.

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