CN205845890U - It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube - Google Patents

Abstract

This utility model relates to a kind of high-voltage drop type anti-hemiplegia fuse being provided with single fuse tube, including insulator and the fuse tube that be arranged in parallel with described insulator, the two ends up and down of described insulator are connected to conduction assembly and lower conduction assembly, described upper conduction assembly includes upper junction plate and upper conducting strip, it is provided with power assistant spring between described upper conducting strip and described upper junction plate, described upper conducting strip is connected with the upper end of described fuse tube, the lower end of described fuse tube is hinged with described lower conduction assembly, the two ends of described fuse tube further respectively have protection device, described protection device is aluminium alloy bearer bar, described protection device is provided with opening, the two ends of described fuse tube are arranged in described protection device through described opening, described protection device is connected with described upper conduction assembly and lower conduction assembly.This utility model simple in construction, easy to operate, more safe and reliable.

Description

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube

Technical field

This utility model relates to a kind of high-voltage drop type anti-hemiplegia fuse being provided with single fuse tube, is primarily adapted for use in electric power System.

Background technology

On distribution transformer high-pressure side and distribution branch circuit, fuse switch is used as the short of transformator and circuit Road protection, overload protection and load current divide, close, and are the outdoor high-voltage protection electrical equipment of a kind of indispensability.Existing fuse switch Fusion tube and insulator side by side arrangement, when normally working, fuse tensioning, fusion tube is in the close position；When short circuit or mistake occur Fuse failure during load, fusion tube rotates centered by lower fulcrum and falls, forms obvious open position；When needs pulling load, use Insulating bar is by dynamic and static for high pressure contact separation.This product structure is simple, cheap, easy to operate, is extensively adopted by people always With, but in use it is found that existing fuse switch, due to architectural limitation, there is also deadly defect, wind resistance, rain, Snow and high density dust ability are low, easily cause and surprisingly come off or freezed cannot come off by ice and snow；Unprotected device, easy-to-rust, Aging, not only result in loose contact, also can damage fuse tube not in time because corrosion causes to come off；The elastic conduction of upper contact head Sheet causes elastic not enough because of heating or metal fatigue, it is impossible to reliably compress fuse tube, is easily blown off or shakes and comes off, and Loose contact；Simple dependence gravity comes off, and comes off not in time so that internal arc damages fuse tube.

Utility model content

In order to overcome the drawbacks described above under prior art, the purpose of this utility model is to provide one to be provided with single fuse tube High-voltage drop type anti-hemiplegia fuse, by rational structure design solve high voltage drop-out type fuse cutout under prior art Defect, more safe and reliable.

The technical solution of the utility model is: a kind of high-voltage drop type anti-hemiplegia fuse being provided with single fuse tube, including Insulator and the fuse tube be arrangeding in parallel with described insulator, the two ends up and down of described insulator are connected to conduction assembly With lower conduction assembly, described upper conduction assembly includes upper junction plate and upper conducting strip, described upper conducting strip and described upper junction plate Between be provided with power assistant spring, described upper conducting strip is connected with the upper end of described fuse tube, the lower end of described fuse tube with described under Conduction assembly is hinged, and the two ends of described fuse tube further respectively have protection device, described protection device and described upper conduction assembly It is connected with lower conduction assembly.

Preferably, described power assistant spring is volute spring, and upper junction plate described in the big end in contact of described volute spring is described Upper conducting strip described in the toe contact of volute spring, volute spring can not only put forward enough thrusts when fuse tube closes Come off in order to avoid fuse tube is easily outer, it is also possible to disconnecting when fuse tube comes off at fuse provides certain elastic force to make fuse tube depart from rapidly In order to avoid damaged so that whole device is more safe and reliable.

Preferably, described protection device is aluminium alloy bearer bar, and described protection device is provided with opening, described fuse tube Two ends are arranged in described protection device through described opening, aluminium alloy bearer bar can not only protect fuse tube not by side or The high wind that opposite blows blows off, additionally it is possible to avoid sleet or dust to enter, prevent conducting strip and upper contact head, fuse tube lower end and The junctions such as gudgeon and gudgeon ear mortar, because there is corrosion and the aging loose contact caused or fuse tube difficult drop-off, it also avoid Because the fuse tube that winter, sleet icing caused cannot come off.

Preferably, being provided with the mounting bracket handle vertical with described insulator in the middle part of described insulator, described mounting bracket is for rolling over Comer pieces, the bending angle of described mounting bracket handle is 30 ° so that fuse tube, for tilting to install, is relatively beneficial to fuse tube and comes off.

Preferably, the upper end of described fuse tube is arranged with two for the operation ring controlling described fuse tube opening and closing so that During fuse tube Guan Bi, operator may be located remotely from equipment, and uses insulating bar remotely to operate, and operates safer.

Preferably, described fuse tube is built with fuse, one end of described fuse and described upper contact head clamping, and the other end passes Described fuse tube is also connected with described lower conduction assembly.

Preferably, described fuse tube is high-strength epoxy fiberglass pipe, the table of described high-strength epoxy fiberglass pipe Topcoating has protective paint.Generally, described protective paint is water-fast, the outdoor paint of anti-ultraviolet, improves the overall performance of fuse tube.

Preferably, described upper junction plate is provided with the U-shaped drag hook for guiding, and the opening of described drag hook is back to described insulation Son so that will not produce crooked during fuse tube Guan Bi, make position is more accurately reliable.

Preferably, described lower conduction assembly includes lower connecting plate, ear mortar and gudgeon, and described ear mortar is solid with described lower connecting plate Even, described gudgeon is positioned in ear mortar, and described fuse tube is hinged with described gudgeon.

Preferably, described upper conduction assembly is provided with upper connecting terminal, and described lower connecting plate is provided with lower connecting terminal.

This high-voltage drop type anti-hemiplegia fuse can be connected with electrical network by upper lower connecting terminal.

The beneficial effects of the utility model are:

Power assistant spring is set between upper junction plate and upper conducting strip, not only carries when fuse tube normally works enough Thrust, it is to avoid the fuse tube caused because of reasons such as upper conducting strip elasticity are not enough is subject to upper conducting strip loose contact or fuse tube What extraneous factor impact caused comes off the most outward；Can also disconnect at fuse, fuse tube provides certain elastic force to make fusing when coming off Pipe departs from upper conducting strip rapidly, in order to avoid suffering the scorching hot damage of electric arc so that whole device closes and separates more safe and reliable.

The aluminium alloy bearer bar not exclusively closed antifouling by being respectively arranged to Radix Saposhnikoviae at the two ends up and down of fuse tube, The two ends up and down of fuse tube and corresponding connection member are protected in aluminium alloy bearer bar, neither affect the Guan Bi of fuse tube with Come off, it is ensured that the high wind that fuse tube will not be blown by side or opposite blows off, and it can be avoided that sleet or dust enter, Prevent conducting strip and the junction such as upper contact head, fuse tube lower end and gudgeon and gudgeon ear mortar because corrosion occurring and aging causing Loose contact or fuse tube difficult drop-off, it also avoid the fuse tube because winter, sleet icing caused cannot come off, and improves product The security performance of product.

This utility model simple in construction, easy to use, it is possible to significantly improve the protection of fuse switch and the performance that comes off, More safe and reliable compared to the fuse switch of conventional art.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

See Fig. 1, the utility model discloses a kind of high-voltage drop type anti-hemiplegia fuse being provided with single fuse tube, including Insulator 11 and the fuse tube 8 be arrangeding in parallel with described insulator, be provided with vertical with described insulator in the middle part of described insulator Mounting bracket is 12, and described mounting bracket is connected to the bending part for bending angle 30 °, the two ends up and down of described insulator Conduction assembly 3 and lower conduction assembly 9.Described upper conduction assembly includes upper connecting terminal 1, upper junction plate 2 and upper conducting strip 5, institute State and between conducting strip and described upper junction plate, be provided with power assistant spring, described upper conducting strip by described power assistant spring and self The upper contact head of fuse tube described in elastic compression, the two ends of described fuse tube further respectively have protection device, generally, described protection dress Putting and be connected by bolt with described upper conduction assembly and lower conduction assembly, described protection device is aluminium alloy bearer bar, described guarantor Protection unit is provided with opening, and the two ends of described fuse tube are arranged in described protection device through described opening, and aluminium alloy is protected Frame can not only protect the high wind that fuse tube do not blows by side or opposite and blow off, additionally it is possible to avoid sleet or dust to enter, anti- Only upper conducting strip and the junction such as upper contact head, fuse tube lower end and gudgeon and gudgeon ear mortar because of occur corrosion and aging cause connect Touching bad or fuse tube difficult drop-off, it also avoid the fuse tube because winter, sleet icing caused cannot come off.Described upper connection Plate be provided with the upper connecting terminal for connecting electrical network and for guide U-shaped drag hook 6, the opening of described drag hook back to described absolutely Edge so that will not produce crooked during fuse tube Guan Bi, make position is more accurately reliable.Described lower conduction assembly includes lower company Fishplate bar, ear mortar and gudgeon, described lower connecting plate is provided with lower connecting terminal 10, and described ear mortar is connected with described lower connecting plate, described Gudgeon is positioned in ear mortar, and the lower end of described fuse tube is hinged with described gudgeon.

The upper end of described fuse tube is arranged with for two operation rings 7 controlling described fuse tube opening and closing, described fuse tube Built with fuse, one end of described fuse and described upper contact head clamping, the other end pass described fuse tube and with described lower conduction Assembly is connected, and described fuse tube is high-strength epoxy fiberglass pipe, and the surface of described high-strength epoxy fiberglass pipe scribbles Protective paint, improves the overall performance of fuse tube.

Fuse switch, when properly functioning, accesses high-voltage fence, now fuse tube by upper and lower two binding posts Form make position by fuse tensile force, and rely on upper conducting strip and power assistant spring to compress the upper contact head of fuse tube, make connection The most reliable.When system jam, fault current makes fuse fuse rapidly and forms electric arc, is burnt by electric arc inside fuse tube Thermally decomposing out a large amount of gas, form very high pressure form vertical blowing along tube wall in making pipe, electric arc is elongated rapidly and is extinguished.Fuse After fusing, gudgeon ear mortar lose pulling force and under turn over, fuse tube simultaneously under the dual function of gravity and power assistant spring elastic force rapidly Fall, formed and significantly cut-off position.When needs pulling load or combined floodgate, catch on operation ring with insulating bar thus pull open and close Fuse tube.

Disclosed in this utility model each preferably with optional technological means, unless otherwise indicated and a preferred or optional skill Art means are outside the restriction further of another technological means, all can form some different technical schemes in any combination.

Claims (10)

1. the high-voltage drop type anti-hemiplegia fuse being provided with single fuse tube, it is characterised in that include insulator and with described absolutely The fuse tube that edge be arranged in parallel, the two ends up and down of described insulator are connected to conduction assembly and lower conduction assembly, institute State conduction assembly and include upper junction plate and upper conducting strip, between described upper conducting strip and described upper junction plate, be provided with power-assisted bullet Spring, described upper conducting strip is connected with the upper end of described fuse tube, and the lower end of described fuse tube is hinged with described lower conduction assembly, institute The two ends stating fuse tube further respectively have protection device, and described protection device is solid with described upper conduction assembly and lower conduction assembly Even.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 1, it is characterised in that described guarantor Protection unit is aluminium alloy bearer bar, and described protection device is provided with opening, and the two ends of described fuse tube are arranged through described opening In described protection device.

Be provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 2, it is characterised in that described absolutely Be provided with the mounting bracket handle vertical with described insulator in the middle part of edge, described mounting bracket being bending part, described mounting bracket handle curved Knuckle degree is 30 °.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 3, it is characterised in that described molten The upper end of disconnected pipe is arranged with two for the operation ring controlling described fuse tube opening and closing.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 4, it is characterised in that described molten Disconnected pipe built with fuse, one end of described fuse and upper contact head clamping, the other end pass described fuse tube and with described lower conduction Assembly is connected.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 5, it is characterised in that described molten Disconnected pipe is high-strength epoxy fiberglass pipe, and the surface of described high-strength epoxy fiberglass pipe scribbles protective paint.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 6, it is characterised in that on described Conduction assembly is provided with upper connecting terminal.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 7, it is characterised in that on described Connecting plate is provided with the U-shaped drag hook for guiding, and the opening of described drag hook is back to described insulator.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 8, it is characterised in that under described Conduction assembly includes that lower connecting plate, ear mortar and gudgeon, described ear mortar are connected with described lower connecting plate, and described gudgeon is positioned over ear mortar In, the lower end of described fuse tube is hinged with described gudgeon.

It is provided with the high-voltage drop type anti-hemiplegia fuse of single fuse tube the most as claimed in claim 9, it is characterised in that under described Connecting plate is provided with lower connecting terminal.