CN2610477Y

CN2610477Y - Vacuum circuit breaker

Info

Publication number: CN2610477Y
Application number: CN 03220495
Authority: CN
Inventors: 吴超; 陈新敏
Original assignee: Changzhou Senyuan Switch Co Ltd
Priority date: 2003-03-20
Filing date: 2003-03-20
Publication date: 2004-04-07
Anticipated expiration: 2013-03-20

Abstract

The utility model belongs to an electric protective device. A vacuum circuit breaker comprises a car frame, a baffle, a trip semi-axis and a locating frame, and also comprises an emergent switch-off mechanism which is composed of a bend plate installed on the car frame, a connecting plate installed on the baffle, a trip bend plate installed on the trip semi-axis, a lock plate respectively matched and connected with the connecting plate and the bend plate, and a heterotype guide rod installed on the locating frame and matched and connected with the lock plate. The utility model can duly cause the primary switch-off mechanism to be operated, ensures the safety of working persons and equipment, has the advantages of safe and reliable work, simple structure and convenient operation, and is especially suitable for great current vacuum circuit breakers.

Description

Vacuum circuit-breaker

Technical field:

The utility model belongs to a kind of electric device, particularly relates to a kind of electric protective device.

Background technology:

Existing vacuum circuit-breaker when emergency occurring, need be opened the door of power distribution cabinet and could eliminate fault, and this can bring certain danger to the operator, and simultaneously, the delay of time may make whole electric equipment be damaged.

Summary of the invention:

Technical problem to be solved in the utility model provides a kind of safe and reliable, easy to operate vacuum circuit-breaker.

The utility model is to realize by following technical scheme: vacuum circuit-breaker, comprise vehicle frame, dividing plate, the dropout semiaxis, locating rack, also comprise urgent brake separating mechanism, urgent brake separating mechanism comprises the bent plate that is installed on the vehicle frame, the jam plate that profiled holes is arranged in the middle of being installed on the bent plate and can rotate around the profiled holes center, one end places the profiled holes of jam plate to be slidingly matched and the other end runs through the special-shaped guide rod of locating rack interstitial hole with friction fit, one end matches action with the rotation of jam plate and the other end is installed on the dividing plate and the connecting plate that can slide along dividing plate, the L type dropout bent plate that is installed on the dropout semiaxis and matches and move with the sliding end of connecting plate, one end is connected with the sliding end of connecting plate and the other end is fixed on the back-moving spring on the dividing plate.Jam plate is installed in respectively in the corresponding groove in bent plate both sides by the flange of both sides, the flange of jam plate one side also be stuck in connecting plate match the end recess in.The sliding end of connecting plate is installed on the dividing plate by the segmentation double-screw bolt, and an end of back-moving spring is connected with the sliding end of connecting plate and the other end is fixed on the dividing plate by the segmentation double-screw bolt.

The utility model is simple in structure, easy to operate, safe and reliable, is specially adapted to high current vacuum circuit breaker.

Description of drawings:

Fig. 1 is the vacuum circuit breaker constructions schematic diagram.

Fig. 2 is the enlarged drawing of I.

Fig. 3 is that A-A is to cutaway view.

Fig. 4 is the enlarged drawing of II.

Fig. 5 is the enlarged drawing of III.

---bent plate, 2---special-shaped guide rod, 3---jam plate, 4---vehicle frame, 5---connecting plate, 6---dividing plate, 7---segmentation double-screw bolt, 8---back-moving spring, 9---dropout bent plate, 10---dropout semiaxis, 11---locating rack, 12---back-up ring, 13---back-up ring, 14---sleeve pipe, 15---back-up ring among Fig. 1 to Fig. 5: 1.

Embodiment:

In conjunction with Fig. 1---Fig. 5 describes.

Vacuum circuit-breaker comprises vehicle frame 4, dividing plate 6, dropout semiaxis 10, locating rack 11 also comprises being welded on the bent plate 1 that there is mounting groove both sides on the vehicle frame 4, the centre has the semi-circular hole both sides to be inserted in jam plate 3 in bent plate 1 mounting groove respectively, one end places the semi-circular hole of jam plate 3 to be slidingly matched and the other end runs through the special-shaped guide rod 2 of the sleeve pipe 14 of locating rack 11 interstitial holes with friction fit, one end matches action with recess with the flange of jam plate 3 and inside groove on the other end is enclosed within the connecting plate 5 on the segmentation double-screw bolt 7 that is fixed on the dividing plate 6, be installed in the L type dropout bent plate 9 that matches and move with connecting plate 5 on the dropout semiaxis 10, one end is fixedlyed connected with the sliding end of connecting plate 5 and the other end is fixedly connected on the back-moving spring 8 on the segmentation double-screw bolt 7.

There is back-up

ring

13,15 at the two ends of sleeve pipe 14 on the special-shaped guide rod 2, end on sleeve pipe 14 is with the back-up ring 12 of fixed sleeving 14, locating rack 11 is fixed on the device housings when assembling, vacuum circuit-breaker can slide along the guide rail on the device housings, and special-shaped guide rod 2 slides in the semi-circular hole of jam plate 3 simultaneously.

When emergency appears in the "on" position of vacuum circuit breaker in the service position, as long as will be inserted on the special-shaped guide rod 2 with the dedicated handle cover that special-shaped guide rod 2 matches, clockwise rotate handle, driving jam plate 3 rotates, the flange that matches with the recess of connecting plate 5 on the jam plate 3 is with regard to jack-up connecting plate 5, and connecting plate 5 upwards slides and pushes L type dropout bent plate 9 by being enclosed within inside groove on the segmentation double-screw bolt 7, makes 10 upsets of dropout semiaxis, former brake separating mechanism action makes the vacuum circuit-breaker separating brake.

Claims

1, vacuum circuit-breaker, comprise vehicle frame, dividing plate, the dropout semiaxis, locating rack, it is characterized in that having urgent brake separating mechanism, urgent brake separating mechanism comprises the bent plate that is installed on the vehicle frame, the jam plate that profiled holes is arranged in the middle of being installed on the bent plate and can rotate around the profiled holes center, one end places the profiled holes of jam plate to be slidingly matched and the other end runs through the special-shaped guide rod of locating rack interstitial hole with friction fit, one end matches action with the rotation of jam plate and the other end is installed on the dividing plate and the connecting plate that can slide along dividing plate, the L type dropout bent plate that is installed on the dropout semiaxis and matches and move with the sliding end of connecting plate, one end is connected with the sliding end of connecting plate and the other end is fixed on the back-moving spring on the dividing plate.

2, vacuum circuit-breaker according to claim 1 is characterized in that the flange of jam plate by both sides is installed in respectively on the bent plate in the corresponding groove in both sides, and the flange of jam plate one side is stuck in connecting plate and matches in the recess of end.

3, according to the 2 described vacuum circuit-breakers that require of right, it is characterized in that the sliding end of connecting plate is installed on the dividing plate by the segmentation double-screw bolt, an end of back-moving spring is connected with the sliding end of connecting plate and the other end is fixed on the dividing plate by the segmentation double-screw bolt.