Jet type fuse insulation operating rod

Abstract

The invention relates to an insulated operating rod of a jet fuse, and the operating rod comprises an insulated pull rod and is characterized by further comprising an extension tube and a clamping joint; the extension tube is mounted at the upper part of the insulated pull rod in a threaded manner, and the clamping joint is mounted at the upper end of the extension tube in a threaded manner; the clamping connector is mainly composed of a barrel, clamping arc plates, holding teeth and clamping jaws, the clamping arc plates which are oppositely arranged at intervals are arranged on the upper end face of the barrel, mounting openings are formed in the barrel wall, under the two clamping arc plates, of the barrel, the holding teeth are mounted in the mounting openings through first torsion springs, and the clamping jaws are connected with the clamping arc plates. clamping jaws are mounted on the inner wall of the cylinder body below the holding teeth through second torsion springs; and the torsion of the first torsion springs is greater than that of the second torsion springs. The injection type fuse insulating pull rod is scientific and reasonable in design, has the advantages of being high in universality, convenient to install, capable of improving installation efficiency and easy to achieve, and has high innovativeness.

Description

technical field [0001] The invention belongs to the field of electric construction tools, and relates to an insulating pull rod, in particular to an insulating operating rod for a spray type fuse. Background technique [0002] With the continuous development of the "coal-to-electricity" project, a large number of new equipment have been put into production one after another, and a number of column-mounted integrated transformers with new structures have emerged, that is, jet fuses. It is mainly used in urban and rural power transmission and distribution systems in the power industry, and can realize full-scale protection (overload and open circuit faults). It is an updated product of the traditional drop-out high-voltage fuse. The injection fuse is composed of a porcelain bushing and a fuse tube inserted in it. The lower contact of the porcelain bushing is a bell-shaped structure, which has the function of straightening and guiding the fuse tube, so that the success rate of ...

AI Technical Summary

Problems solved by technology

[0003] Since the fuse of the fuse is tubular, the line needs to be cut off during installation. The operator climbs on the pole and inserts the fuse tube upward from the bottom of the porcelain sleeve of the fuse for installation, which not only prolongs the power outage time of the user, but also affects the power supply. reliability

[0004] The publication number is CN210897179U, which discloses a patent name of a 10KV insulating pull rod suitable for jet fuses. Although it solves the problem of manual disassembly and assembly of jet fuses, due to the variety of specifications of jet fuses, it is difficult to use them now. Some insulating rods of one specification cannot make the disassembly and assembly of fuses easier. Therefore, it is necessary to design a versatile insulating rod that can be used for multi-standard fuses.

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