CN201307549Y

CN201307549Y - Rotary type isolating switch fixed contact

Info

Publication number: CN201307549Y
Application number: CNU2008202222800U
Authority: CN
Inventors: 田东生; 钱建华; 张继忠; 叶伟
Original assignee: Xining Power Supply Co Ltd
Current assignee: Xining Power Supply Co Ltd
Priority date: 2008-10-22
Filing date: 2008-10-22
Publication date: 2009-09-09
Anticipated expiration: 2018-10-22

Abstract

The utility model discloses a rotary type isolating switch fixed contact which relates to a horizontally rotary type isolating switch with three pillars and double kerfs and belongs to the technical field of an isolation switch of a high-voltage electrical apparatus, in particular to a rotary type isolating switch fixed contact. The rotary type isolating switch fixed contact comprises a fixed contact bottom casing 6, a plurality of fixed sensing fingers 1, a group of starting arc sensing fingers 2, a spacing hook plate 4, a starting arc sensing finger positioning plate 5 and a fixed sensing finger spring 8. The utility model is characterized in that the upper end and the lower end of the starting arc sensing finger positioning plate 5, corresponding to the starting arc sensing fingers 2, are respectively provided with a positioning pin 9; one end of the starting arc sensing fingers 2 is provided with a lifting hole 11 which is sheathed on the positioning pins 9. The utility model can effectively prevent the starting arc sensing fingers from moving and sliding out to ensure that the assembly position is correct.

Description

The rotary separation switch fixed contact

Technical field

The utility model relates to the flat rotary-type isolating switch of the horizontal saliva of a kind of three post double break mouths, belongs to High-Voltage Electrical Appliances isolation switch technical field.Particularly a kind of rotary separation switch fixed contact.

Background technology

The flat rotary-type isolating switch of the horizontal saliva of GW7-363 three post double break mouths that new northeast high-voltage switch gear Co., Ltd produces, on every phase plug-in strip pedestal three insulation columns are arranged, the fixed contact of being adorned on conduction movable feeler lever and two lateral braces of adorning presents double break mouth state on the middle rotation insulation column in the separating brake position, during combined floodgate, after moving contact touches fixed contact, driving conduction movable feeler lever level under the effect of middle rotation insulation column little connecting lever in insulation column is rotated in the centre turns clockwise, the movable feeler lever moving contact arrives the bit flipping 45 in fixed contact, make, fixed contact is the vertically contact fully of 90 ° of angles, finishes isolating switch combined floodgate task.Can accurately be incorporated in the fingertip of both sides fixed contact be reliable key of closing a floodgate to the conduction movable feeler lever in the making process.The fixed contact of this isolating switch is made up of fixed contact drain pan, three groups of static contact fingers, one group of striking fingertip, spacing hook plate, striking fingertip location-plate and static contact finger spring.Be in operation and often find to have the phenomenon of not overturning and directly ejecting when closing a floodgate not in place and separating brake.Its main cause is: 1, the striking fingertip does not have fixture, moving contact minute, cause when closing a floodgate that striking fingertip string is moving even skid off that can not guarantee to assemble the tram, the striking fingertip stops that contact closes a floodgate and puts in place when closing a floodgate once more, and moving contact is overturn in advance.2, moving contact upset in advance in the fixed contact outside, or do not overturn during separating brake and directly eject.3, spacing hook plate is owing to install dislocation, when the movable feeler lever moving contact turns clockwise, hangs the spacing hook plate of butt lock or deviates from from the spacing hook plate that closes a floodgate, cause close a floodgate not in place.

The content of utility model

The purpose of this utility model is to provide a kind of striking fingertip not go here and there, do not skid off, guarantee that its rigging position is correct, do not stop that moving contact moves, enough effectively prevent rotary separation switch stop sending that electricity divides, occur in the closing operation closing not in place, moving contact overturns in advance and eject the rotary separation switch fixed contact of phenomenon automatically.

The technical solution of the utility model is: this rotary separation switch fixed contact, comprise fixed contact drain pan 6, some groups of static contact fingers 1, one group of striking fingertip 2, spacing hook plate 4, striking fingertip location-plate 5, static contact finger spring 8, be characterized in an alignment pin 9 being housed respectively at the two ends up and down of striking fingertip location-plate 5 and the corresponding position of striking fingertip 2; End at striking fingertip 2 has a lifting hole(eyelet) 11, and this lifting hole(eyelet) 11 is placed on the alignment pin 9.

Another characteristics of the present utility model are that a spacing hook plate backing plate 3 also is housed between described spacing hook plate 4 and fixed contact drain pan 6.

The chamfering height that another characteristics of the present utility model are described spacing hook plates 4 is 2.5mm.

Another characteristics of the present utility model are that described lifting hole(eyelet) (11) is of a size of 8 * 15mm.

The utlity model has following advantage and effect: owing to be provided with alignment pin and lifting hole(eyelet), make the striking fingertip not go here and there, not skid off, can guarantee that its rigging position is correct, and then not stopping that moving contact moves, enough rotary separation switch that effectively prevents are stopping sending that electricity divides, generation not in place, that moving contact overturns in advance and ejects phenomenon automatically occurring closing in the closing operation.The reduction of spacing hook plate backing plate and spacing hook plate chamfering also makes spacing hook plate not hang and bumps the movable feeler lever moving contact, on/off switch is accurately put in place.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the left view of Fig. 1

Fig. 3 is a striking fingertip location-plate structural representation

Fig. 4 is the left view of Fig. 3

Fig. 5 is a striking fingertip structural representation

Fig. 6 is the vertical view of Fig. 5

Fig. 7 is spacing hook plate backing structure schematic diagram

Fig. 8 is the left view of Fig. 7

Embodiment

As Fig. 1-shown in Figure 6, this rotary separation switch fixed contact comprises fixed contact drain pan 6, three groups of static contact fingers 1, one group of striking fingertip 2, spacing hook plate 4, striking fingertip location-plate 5, static contact finger spring 8; Be characterized in being welded with an alignment pin 9 respectively at the two ends up and down of striking fingertip location-plate 5 and the corresponding position of striking fingertip 2; End at striking fingertip 2 has a lifting hole(eyelet) 11, and this lifting hole(eyelet) 11 is placed on the alignment pin 9.So just can guarantee that striking fingertip 2 do not go here and there, do not skid off.As Fig. 7, Fig. 8, a spacing hook plate backing plate 3 also is housed between spacing hook plate 4 and fixed contact drain pan 6, make spacing hook plate 4 installation sites correct, do not hang and bump movable feeler lever moving contact 10.The chamfering height of spacing hook plate 4 is reduced most 2.5mm, spacing hook plate 4 is not hung bumped movable feeler lever moving contact 10.

In the accompanying drawing, 7 is combined floodgate limiting lock clasp, and 10 is moving contact, and 12 is movable feeler lever.

Claims

1, rotary separation switch fixed contact, comprise fixed contact drain pan (6), some groups of static contact fingers (1), one group of striking fingertip (2), spacing hook plate (4), striking fingertip location-plate (5), static contact finger spring (8), it is characterized in that an alignment pin (9) being housed respectively at the two ends up and down of striking fingertip location-plate (5) and the corresponding position of striking fingertip (2); End at striking fingertip (2) has a lifting hole(eyelet) (11), and this lifting hole(eyelet) (11) is placed on the alignment pin (9).

2, rotary separation switch fixed contact as claimed in claim 1 is characterized in that also being equipped with a spacing hook plate backing plate (3) between described spacing hook plate (4) and fixed contact drain pan (6).

3, rotary separation switch fixed contact as claimed in claim 1 or 2, the chamfering height that it is characterized in that described spacing hook plate (4) is 2.5mm.

4, rotary separation switch fixed contact as claimed in claim 1 or 2 is characterized in that described lifting hole(eyelet) (11) is of a size of 8 * 15mm.