CN201503795U

CN201503795U - One-way isolating switch

Info

Publication number: CN201503795U
Application number: CN200920092777XU
Authority: CN
Inventors: 张长春; 陈晓兵; 刘丽方
Original assignee: PINGDINGSHAN EDISON POWER SYSTEM CO Ltd
Current assignee: Cooper Electronic Technologies Shanghai Co Ltd
Priority date: 2009-09-02
Filing date: 2009-09-02
Publication date: 2010-06-09
Anticipated expiration: 2019-09-02

Abstract

A one-way isolating switch relates to a circuit isolating switch device and comprises a base board, two insulators, two patch panels and a lock buckle linkage device arranged between the two patch panels; the lock buckle linkage device is composed of a movable contact knife, a pull ring lock buckle, a torsion spring driver plate and a lock buckle plate, one end of the movable contact knife is arranged on the patch panels, the other end of the movable contact knife is provided with the pull ring lock buckle and the torsion spring driver plate, one end of the torsion spring driver plate is buckled with the pull ring lock buckle and the other end of the torsion spring driver plate is buckled with the lock buckle plate fixed on the patch panels. The one-way isolating switch has the beneficial effects that: the mounting is more convenient; the insulation effect is good; the contact area of the lock buckle is guaranteed through the torsion spring of the torsion spring driver plate; the switching operation is convenient, and the durability and firmness of the one-way isolating switch are better.

Description

A kind of unidirectional isolating switch

Technical field

The utility model relates to a kind of circuit isolation switch device, a kind of specifically unidirectional isolating switch.

Background technology

High voltage isolator is an important device for switching in power plant and the transformer station's electrical system at present, need and the supporting use of primary cut-out, its major function is: guarantee High-Voltage Electrical Appliances and the safety of mechanism when service work, play isolation voltage, can not use and cut off, drop into load current and cut-off short circuit current, only can be used for not producing some handover operation of powerful electric arc, because existing isolating switch structurally is the connection of adopting dynamic/static contact, be to use carbon steel on the manufacturing materials, it is that major defect is: the contact area when assurance that can not be good is closed a floodgate, when combined floodgate is too quickly, also easily break porcelain insulator into pieces, can not oppositely lift, complex structure is installed effort, poor insulativity.

Summary of the invention

The utility model purpose is for making more reasonable safety on the structure, by adopting a kind of novel snap close link gear, realizes that breaking-closing operating is more convenient, and a kind of simple, good insulating, reverse unidirectional isolating switch of lifting installed is provided.

The utility model is the deficiency that solves the problems of the technologies described above, the technical scheme that is adopted is: a kind of unidirectional isolating switch, comprise base plate, two insulators, two terminal blocks, between two terminal blocks, be provided with the snap close link gear, described snap close link gear is by movable touch knife, the draw ring snap close, torsion spring driver plate and locking board are formed, movable touch knife one end is arranged on the terminal block I by connector, the other end of movable touch knife is provided with draw ring snap close and torsion spring driver plate, torsion spring driver plate one end and draw ring snap close are interlockingly connected, and the other end is interlockingly connected with the locking board that is fixed on the terminal block II.

Described torsion spring driver plate is that torsion spring and steel plate are formed, and torsion spring and steel plate are enclosed within on the steel bolt, and torsion spring one end twines and is enclosed within on the steel plate, and the other end is fixed on the movable touch knife.

Described draw ring snap close is provided with a support, and support and draw ring snap close are integrative-structures, and support is a herringbone structure, and its length is greater than the distance between two steel plates of movable touch knife.

Described connector is made up of rotating shaft that connects movable touch knife and the axle sleeve that is arranged on the terminal block.

The utility model is to be connected on the circuit of 10KV, be connected on the outlet side of circuit breaker by terminal block, in the middle of the rectangle base plate, be provided with installing hole, described two insulator one ends are fixedlyed connected with base plate respectively, the other end of each insulator is respectively equipped with the terminal block that curves the right angle, and the horizontal plane of terminal block is provided with wiring hole.

Can the be more convenient for installation, fixing of oppositely lifting of the installing hole that is provided with in the middle of the described base plate is installed more simple and easy to operate.

Described draw ring snap close and torsion spring driver plate are fixed between two steel plates of movable touch knife by the steel bolt, the torsion spring driver plate the closure that has guaranteed movable touch knife is set can be because of exerting oneself excessive near insulator, avoided insulator to be broken into pieces, movable touch knife is unidirectional closure, can be implemented in the rotation of 180 ° of the horizontal directions of terminal block by connector, be reverse lifting because of what take again, so be that nature has kept 90 ° angle vertically downward with locking board behind the movable touch knife separating brake.

Described support and draw ring snap close are being wholely set of intersecting vertically, and the setting of support is in order to live the torsion spring power of torsion spring driver plate at the combined floodgate rear haulage, and the draw ring that keeps the draw ring snap close outside movable touch knife, is more convenient for to the operation of draw ring snap close all the time simultaneously.

Described locking board and draw ring snap close by with the snapping of torsion spring driver plate, the contact area of snap close when well having guaranteed to close a floodgate, when firmly spurring the draw ring snap close with insulating rod, draw ring snap close pulling torsion spring driver plate separates with locking board, just can realize separating brake, more simple, safety in the operation.

Described insulator is to adopt the outdoor epoxy resin of import, and insulation effect is better more reliable, and described base plate, terminal block and snap close link gear are steel and steel member, and durability and robustness are better.

The beneficial effects of the utility model are: the installing hole by base plate oppositely lifts, and installs more simple and easy to operate; Insulator adopts is that the outdoor epoxy resin of import is better more reliable on insulation effect; The closure that has guaranteed movable touch knife is set can near insulator, avoided insulator to be broken into pieces of snap close link gear because of exerting oneself excessive; The contact area of snap close when the torsion spring of torsion spring driver plate has well guaranteed to close a floodgate; What adopt is steel and steel member, and durability and robustness are better.

Description of drawings

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

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is the structural representation of snap close link gear.

Mark is among the figure: 1, base plate, 2, insulator I, 3, terminal block I, 4, movable touch knife, 5, the draw ring snap close, 6, the torsion spring driver plate, 7, locking board, 8, installing hole, 9, support, 10, axle sleeve, 11, rotating shaft, 12, steel bolt I, 13, steel bolt II, 14, insulator II, 15, terminal block II, 16, torsion spring.

Embodiment:

A kind of unidirectional isolating switch of the utility model comprises two insulators 2 as shown in Figure 1,14, base plate 1, two

terminal blocks

3,15, described two insulators 2, fixedly connected with base plate 1 respectively in 14 lower ends, two

insulators

2,14 upper end is respectively equipped with the terminal block 3 that curves the right angle, 15, at two terminal blocks 3, be provided with movable touch knife 4 between 15 the vertical plane, the right-hand member of movable touch knife 4 is arranged on the vertical plane side of the right terminal block 3 by axle sleeve 10 and rotating shaft 11, draw ring, the draw ring snap close 5 that snap close hook and support 9 are the one formation is fixed on movable touch knife 4 left ends by steel bolt I 12, and support 9 is supported on the movable touch knife 4.

In the middle of base plate 1, be provided with installing hole 8 as shown in Figure 2,

terminal block

3,15 horizontal plane is provided with wiring hole, at two terminal blocks 3, be provided with the snap close link gear between 15 the vertical plane, described snap close link gear is by movable touch knife 4, draw ring snap close 5, torsion spring driver plate 6 and locking board 7 are formed, movable touch knife 4 is terminal blocks 3, two bar steel plates of 15 vertical plane both sides, two steel plate right-hand members are arranged on the vertical plane side of the right terminal block 3 by axle sleeve 10 and rotating shaft 11, be provided with torsion spring driver plate 6 and draw ring snap close 5 in the middle of the left end of two steel plates from left to right successively, support 9 intersects vertically with draw ring snap close 5 and is wholely set.

Locking board 7 is fixed on the vertical plane of left side terminal block I 15 as shown in Figure 3, torsion spring driver plate 6 is fixed on movable touch knife 4 left ends by steel bolt II 13, shaped form torsion spring driver plate 6 right-hand members and draw ring snap close 5 are interlockingly connected, left end and hook type locking board 7 are interlockingly connected, connector is a semi-round ring shape axle sleeve 10, is fixed on the vertical plane of the right terminal block 3, and semicircular ring axle sleeve 10 centers are provided with a rotating shaft 11, rotating shaft 11 is fixed between two steel plates, and rotating shaft 11 can be rotated at semicircular ring axle sleeve 10 centers.

Described insulator 2 is to adopt the outdoor epoxy resin of import, and insulation effect is better more reliable, and base plate 1 described in the utility model,

terminal block

3,15 and snap close link gear are steel and steel member, and durability and robustness are better.

Described support 9 is being wholely set of intersecting vertically with draw ring snap close 5, and the setting of support 9 is in order to live the torsion spring power of torsion spring driver plate 6 at the combined floodgate rear haulage, and the draw ring that keeps draw ring snap close 5 outside movable touch knife 4, is more convenient for to the operation of draw ring snap close 5 all the time.

The utility model is to be connected on the circuit of 10KV, be connected on the outlet side of circuit breaker by the wiring hole on the terminal block 3, installing hole 8 by base plate 1 oppositely lifts, when circuit needs separating brake to isolate, take insulating rod firmly to pull draw ring snap close 5, torsion spring driver plate 6 will separate with locking board 7, because gravity movable touch knife 4 own has just been finished the separating brake isolation vertically downward, when circuit need close a floodgate, by insulating rod torsion spring driver plate 6 and locking board 7 are interlocked and just to have finished combined floodgate, operate simpler, safety.

The utility model has adopted a kind of snap close link gear, structurally more succinct, effect is more outstanding, draw ring snap close 5 and torsion spring driver plate 6 are by

steel bolt

12,13 are fixed between two steel plates of movable touch knife 4, torsion spring driver plate 6 the closure that has guaranteed movable touch knife 4 is set can be because of exerting oneself excessive near insulator 2, avoided insulator 2 to be broken into pieces, movable touch knife 4 is unidirectional closure, can be implemented in the rotation of 180 ° of the horizontal directions of terminal block by connector, be reverse lifting because of what take again, so be that nature has kept 90 ° angle vertically downward with locking board 7 behind movable touch knife 4 separating brakes.

Claims

1. unidirectional isolating switch, comprise base plate (1), two insulators (2,14), two terminal blocks (3,15), it is characterized in that: at two terminal blocks (3,15) be provided with the snap close link gear between, the snap close link gear is by movable touch knife (4), draw ring snap close (5), torsion spring driver plate (6) and locking board (7) are formed, movable touch knife (4) one ends are arranged on the terminal block I (3) by connector, the other end is provided with draw ring snap close (5) and torsion spring driver plate (6), torsion spring driver plate (6) one ends and draw ring snap close (5) are interlockingly connected, and the other end is interlockingly connected with the locking board (7) that is fixed on the terminal block II (15).

2. a kind of single-phase isolating switch as claimed in claim 1, it is characterized in that being: described torsion spring driver plate (6) is made up of torsion spring (16) and steel plate, steel plate is enclosed within on the steel bolt II (13), and torsion spring (16) one ends twine and are enclosed within on the steel plate, and the other end is fixed on the movable touch knife (4).

3. a kind of single-phase isolating switch as claimed in claim 1 is characterized in that being: draw ring snap close (5) is provided with a support (9), and support (9) cross section is a herringbone structure, and its length is greater than the distance between two steel plates of movable touch knife.