CN110739638A

CN110739638A - telescopic potential transfer stick for live working of extra-high voltage line

Info

Publication number: CN110739638A
Application number: CN201911045495.9A
Authority: CN
Inventors: 周晓刚; 肖永钦; 刘文杰; 陈兴宝; 陈骁航; 郑杰东; 陈华论; 郭凌宇
Original assignee: State Grid Fujian Electric Power Co Ltd; Maintenance Branch of State Grid Fujian Electric Power Co Ltd
Current assignee: State Grid Fujian Electric Power Co Ltd; Maintenance Branch of State Grid Fujian Electric Power Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-01-31

Abstract

The invention relates to telescopic potential transfer rods for live working of extra-high voltage lines, which comprise telescopic insulating operation handles, wherein an omega-shaped plug is installed at the front end of each telescopic operation handle, the omega-shaped plug is electrically connected with a terminal connector through a copper wire coated with a copper wire sheath, the terminal connector comprises a C-shaped connecting seat and a screw rod, a threaded hole is formed in the upper side part of the C-shaped connecting seat and is in threaded connection with the screw rod, a pressing block is arranged at the lower end of the screw rod, a rotating handle is arranged at the upper end of the screw rod, the lower side part of the C-shaped connecting seat is right opposite to the upper side surface of the pressing block, or a boss for sleeving a copper connection lug is arranged on the lower side surface of the pressing block, so that the copper connection lug at the front end of a clothes connection line is firmly sleeved when the screw rod rotates downwards and the.

Description

telescopic potential transfer stick for live working of extra-high voltage line

Technical Field

The invention relates to the technical field of live-line work of extra-high voltage lines, in particular to telescopic potential transfer rods for live-line work of extra-high voltage lines.

Background

The ultra-high voltage line has large transmission capacity and high reliability requirement, and does not have a temporary power failure condition, has critical defect, and needs to be treated by utilizing live working emergency elimination.

The potential transfer rod of the existing extra-high voltage strain tower has problems in the actual use process, brings fixed risk hidden troubles to live working, and influences the live working efficiency.

The existing potential transfer rod is 80cm in length and too large in size, and cannot be placed in a personal tool bag, and only can be positioned at the waist of an operator.

Disclosure of Invention

The invention aims to provide telescopic potential transfer rods for live-wire work of an extra-high voltage line, which are easy to operate, convenient to disassemble and assemble and reliable in connection.

In order to achieve the purpose, the technical scheme includes that the telescopic potential transfer rod for hot-line work of extra-high voltage lines comprises a telescopic insulating operation handle, an omega-shaped plug is mounted at the front end of the telescopic operation handle and electrically connected with a terminal connector through a copper wire coated with a copper wire sheath, the terminal connector comprises a C-shaped connecting seat and a screw rod, a threaded hole is formed in the upper side portion of the C-shaped connecting seat and in threaded connection with the screw rod, a pressing block is arranged at the lower end of the screw rod, a rotating handle is arranged at the upper end of the screw rod, the lower side portion of the C-shaped connecting seat faces the upper side portion of the pressing block, or a boss used for sleeving a copper wiring nose is arranged on the lower side portion of the pressing block, so that the copper wiring nose at the front end of a clothes connecting wire is firmly sleeved when the screw rod rotates.

, the telescopic handle is composed of multiple sleeves nested one inside the other and able to slide relatively.

, the omega-shaped plug is mainly composed of a copper terminal and curved copper clamping sheets connected to two sides of the copper terminal, wherein the copper terminal is installed at the front end of the innermost sleeve and is electrically connected with a copper wire penetrating out of the innermost sleeve.

, the copper wire covered with copper wire sheath is inserted into the nested multiple sleeves, end is passed out from the innermost sleeve and electrically connected with the copper terminal, and end is passed out from the outermost sleeve and electrically connected with the C-shaped connecting seat of the terminal connector.

, the height of the boss is matched with the thickness of the copper wire connecting nose of the clothes connecting line, so that the copper wire connecting nose is pressed when the pressing block presses the lower side part of the C connecting seat.

, the screw is detachably connected with the pressing block.

Compared with the prior art, the invention has the advantages that telescopic potential transfer rods which can be quickly assembled and disassembled with a copper connection lug and are reliably connected and have good conductivity are provided, the telescopic potential transfer rods can be quickly assembled and disassembled by one person through the potential transfer rods, the working efficiency of operators is improved, the time length of the extra-high voltage live working is greatly shortened, the circuit retreating and reclosing time is reduced, and the safety of the operators and a power grid is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the terminal connector in the embodiment of the present invention.

Fig. 3 is a schematic view showing a state in which the terminal connector and the copper lug are connected in the embodiment of the present invention.

Detailed Description

The invention is further described in detail in connection with the figures and the embodiments.

The invention provides a telescopic potential transfer rod for hot-line work of an extra-high voltage line, which comprises a telescopic insulating operating handle 1, wherein an omega-shaped plug 3 is installed at the front end of the telescopic operating handle 1, and the omega-shaped plug 3 is electrically connected with a terminal connector 4 through a copper wire coated with a copper wire sheath 2. As shown in fig. 2 and 3, the terminal connector 4 includes a C-shaped connecting seat 41 and a screw rod 42, a threaded hole is formed in the upper side of the C-shaped connecting seat 41 and is in threaded connection with the screw rod 42, a pressing block 43 is arranged at the lower end of the screw rod 42, a rotating handle 44 is arranged at the upper end of the screw rod, a boss 45 for being sleeved with a copper wiring lug is arranged on the upper side of the pressing block 43 at the lower side of the C-shaped connecting seat 41, so that the copper wiring lug 6 at the front end of the clothes connecting wire 5 is firmly sleeved when the screw rod rotates downwards and the pressing block presses the lower side of the C-shaped. In other embodiments of the invention, the boss may also be provided on the underside of the press block in order to simplify the manufacture of the C-shaped connecting socket.

In order to ensure reliable electrical conduction between the copper lug and the terminal connector, the height of the boss 45 is adapted to the thickness of the copper lug 6 of the garment connecting wire 5, so that the copper lug 6 is pressed while the pressing block 43 presses the lower side portion of the C connecting seat 41.

In the present embodiment, the telescopic insulating operating handle 1 is mainly composed of a plurality of sleeves which are nested in sequence and can slide relatively. During operation, the operating handle can be extended by stretching the plurality of sleeves which are connected in a nested manner; when not in use, the movable lifting device can be directly folded, so that the size of the operating handle is greatly shortened, the movable lifting device is convenient to carry, and the high climbing and shifting smoothness and safety are enhanced.

In the embodiment, the omega-shaped plug 3 mainly comprises a copper terminal 31 and curved copper clamping pieces 32 connected to two sides of the copper terminal 31, wherein the copper terminal 31 is installed at the front end of the innermost sleeve 11 and is electrically connected with a copper wire penetrating out of the innermost sleeve 11.

For convenience of carrying and use, the copper wire covered with the copper wire sheath 2 is inserted into the plurality of sleeves connected in a nested manner, the end is passed out from the innermost sleeve 11 and electrically connected with the copper terminal 31, and the end is passed out from the outermost sleeve 12 and electrically connected with the C-shaped connecting seat 41 of the terminal connector 4.

The threaded rod 42 is detachably connected to the press block 43 for facilitating the manufacture and assembly of the terminal connector.

The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.

Claims

The utility model provides a telescopic current potential transfer stick of kind of extra-high voltage line live working, its characterized in that, including scalable insulating operation handle, omega type plug is installed to scalable operating handle front end, omega type plug has copper wire and terminal connector electric connection of copper wire sheath through outside cladding, the terminal connector includes C type connecting seat and screw rod, side portion set up threaded hole on the C type connecting seat, and with screw rod threaded connection, the screw rod lower extreme is equipped with the briquetting, and the upper end is equipped with the swing handle, side portion is just to on the last side of briquetting under the C type connecting seat, perhaps be equipped with the boss that is used for emboliaing the copper connection nose on the downside of briquetting to when revolving under the screw rod and making the briquetting compress tightly side portion under the C type connecting seat, firmly entangle the copper connection nose of clothes connecting wire front end.
2. The retractable extra-high voltage line live working potential transfer bar of claim 1, wherein the retractable insulating operating handle is mainly composed of a plurality of sleeves which are nested in sequence and can slide relatively.
3. The retractable extra-high voltage line hot-line work potential transfer bar of claim 2, wherein the omega-shaped plug is mainly composed of a copper terminal and curved copper clips connected to two sides of the copper terminal, and the copper terminal is mounted at the front end of the innermost sleeve and electrically connected to a copper wire penetrating through the innermost sleeve.
4. The retractable extra-high voltage line hot-line work potential transfer bar of claim 3, wherein the copper wires covered with copper wire sheaths are inserted inside a plurality of nested sleeves, the end is extended out from the innermost sleeve and electrically connected with the copper terminal, and the end is extended out from the outermost sleeve and electrically connected with the C-shaped connecting seat of the terminal connector.
5. The retractable extra-high voltage line hot-line work potential transfer bar of claim 1, wherein the height of the boss is adapted to the thickness of the copper connection lug of the clothes connection line, so as to press the copper connection lug while the pressing block presses the lower side portion of the C connection seat.
6. The retractable extra-high voltage line hot-line work potential transfer rod of claim 1, wherein the screw and the pressing block are detachably connected.