CN213519719U

CN213519719U - High-low voltage isolating switch

Info

Publication number: CN213519719U
Application number: CN202022240987.8U
Authority: CN
Inventors: 刘东霞; 张磊; 傅超
Original assignee: Shuangan High Power Railway Electrification Equipment Manufacturing Co ltd
Current assignee: Shuangan High Power Railway Electrification Equipment Manufacturing Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-22
Anticipated expiration: 2030-10-10

Abstract

The utility model belongs to the technical field of high-low voltage distribution equipment, a high-low voltage isolator is provided, the on-line screen storage device comprises a base, the base both sides evenly are provided with a plurality of insulators, be provided with the preforming on the insulator, the preforming symmetry of base both sides sets up, the base middle part is provided with the pivot, be provided with branch in the pivot, branch left end swing joint has the carriage release lever, the carriage release lever is connected with the switch, the switch right-hand member has a support piece through the hub connection, the support piece sets up on the preforming, pivot one end is provided with the disc, disc one side is provided with drive arrangement. Whole device, easy operation, the practicality is high, and divide-shut brake state is stable, improves the security.

Description

High-low voltage isolating switch

Technical Field

The utility model belongs to the technical field of high-low voltage distribution equipment, concretely relates to high-low voltage isolator.

Background

The high-voltage isolating switch is an important switching device in an electric system of a power plant and a transformer substation and needs to be matched with a high-voltage circuit breaker for use. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. For switching on, switching off or switching the line in the case of a voltage-loaded train of high-voltage equipment. The main functions are as follows: the safety of the high-voltage electrical appliance and the device during maintenance work is ensured, the voltage isolation function is realized, the high-voltage electrical appliance and the device cannot be used for cutting off, inputting load current and cutting off short-circuit current, and only can be used for certain switching operation without generating strong electric arcs, namely the high-voltage electrical appliance and the device do not have the arc extinguishing function; the voltage class is divided into an indoor type and an outdoor type according to different installation places, and is divided into a single column type, a double column type and a three column type according to the number of the insulating support columns, and each voltage class is provided with optional equipment.

Various actuating mechanism realize the divide-shut brake action, its weak point lies in: the actuating mechanism part is more, breaks down easily, and actuating mechanism meets when the multiunit, repetitive operation, and the process is loaded down with trivial details, brings inconvenience for operating personnel, and separating brake and combined floodgate state can not effectively be fixed, and the cost is higher, influences the divide-shut brake effect, the safety problem appears even.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a high/low voltage isolation switch, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-low voltage isolating switch is characterized by comprising a base, wherein a plurality of insulators are uniformly arranged on two sides of the base, pressing sheets are arranged on the insulators, the pressing sheets on the two sides of the base are symmetrically arranged, a rotating shaft is arranged in the middle of the base, a supporting rod is arranged on the rotating shaft, a moving rod is movably connected to the left end of the supporting rod, the moving rod is connected with a disconnecting link, a supporting sheet is connected to the right end of the disconnecting link through a shaft and is arranged on the pressing sheet, a disc is arranged at one end of the rotating shaft, and a driving device is arranged on one side of the disc;

the driving device comprises a driving lever and a fixing frame, wherein cylinders are arranged at two ends of the fixing frame, a first rod and a second rod are arranged in the middle of the fixing frame, the right ends of the first rod and the second rod are movably connected with the fixing frame, a spring is arranged between the left end of the first rod and the left end of the second rod, a baffle is arranged at the bottom of the fixing frame, and the driving lever is arranged at the left end of the first rod.

Preferably, a hole groove is formed in the middle of the first rod, a convex body is arranged on the disc, and the hole groove and the convex body are matched for use.

Preferably, a buffer pad is arranged between the pressing sheet and the insulator.

Preferably, the left end of the pressing piece is provided with a connector lug, and the pressing piece is L-shaped.

Preferably, the knife switch is trapezoidal.

Preferably, the moving rod is movably connected to the right part of the disconnecting link.

Compared with the prior art, the utility model discloses following beneficial effect has: according to the high-low voltage isolating switch, the arrangement of the rotating shaft and the moving rod can avoid the complexity of repeated opening and closing of a plurality of groups of high-low voltage isolating switches, and the repeated work of operators is reduced; through the setting of drive arrangement for high-low voltage isolator is more stable at the divide-shut brake state, and is firm. Whole device, easy operation, the practicality is high, and divide-shut brake state is stable, improves the security.

Drawings

Fig. 1 is a schematic view of the overall structure of a high-low voltage isolating switch of the present invention;

fig. 2 is a schematic structural diagram of a driving device of a high-low voltage isolating switch of the present invention.

In the figure: 1. a connector lug; 2. tabletting; 3. a disconnecting link; 4. a base; 5. a disc; 6. a deflector rod; 7. a strut; 8. a travel bar; 9. an insulator; 10. a cushion pad; 11. a first rod; 12. a spring; 13. a baffle plate; 14. A second rod; 15. a fixed mount; 16. and (4) a cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that this description is intended to be exemplary, and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-2, the utility model provides a high-low voltage isolator, include:

a high-low voltage isolating switch is characterized by comprising a base 4, wherein a plurality of insulators 9 are uniformly arranged on two sides of the base 4, pressing sheets 2 are arranged on the insulators 9, the pressing sheets 2 on two sides of the base 4 are symmetrically arranged, a rotating shaft is arranged in the middle of the base 4, a supporting rod 7 is arranged on the rotating shaft, the left end of the supporting rod 7 is movably connected with a moving rod 8, the moving rod 8 is connected with a disconnecting link 3, the right end of the disconnecting link 3 is connected with a supporting sheet through a shaft, the supporting sheet is arranged on the pressing sheets 2, a disc 5 is arranged at one end of the rotating shaft, and a driving device is arranged on one side of the disc 5;

the driving device comprises a driving lever 6 and a fixing frame 15, cylinders 16 are arranged at two ends of the fixing frame 15, a first rod 11 and a second rod 14 are arranged in the middle of the fixing frame 15, the right end of the first rod 11 and the right end of the second rod 14 are movably connected with the fixing frame 15, a spring 12 is arranged between the left end of the first rod 11 and the left end of the second rod 14, a baffle 13 is arranged at the bottom of the fixing frame 15, and the driving lever 6 is arranged at the left end of the first rod 11.

Preferably, the middle part of the first rod 11 is provided with a hole groove, the disc 5 is provided with a convex body, and the hole groove and the convex body are matched for use.

Preferably, a buffer pad 10 is disposed between the pressing plate 2 and the insulator 9.

Preferably, the left end of the pressing sheet 2 is provided with a connector lug 1, and the pressing sheet 2 is L-shaped.

Preferably, the knife gate 3 is trapezoidal.

Preferably, the moving rod 8 is movably connected to the right part of the knife switch 3.

During use, as shown in fig. 1-2, in a closing state, the left end of the knife switch 3 is placed on the left pressing sheet 2, and at this time, in the driving device: the first rod 11 is arranged at the left cylinder 16, the second rod 14 is arranged at the left side of the baffle 13, and the spring 12 is in a stretching state. When the worker needs to open the switch, the shift lever 6 is shifted, the first driving rod 11 moves towards the right side until the right side cylinder 16 stops, the spring 12 stretches and retracts in the process, the second driving rod 14 moves towards the right side of the baffle 13, the disc 5 moves clockwise under the matching of the convex body and the hole groove, the rotating shaft is driven to rotate, and the support rod 7 drives the moving rod 8 to move, so that the left side of the disconnecting link 3 is lifted, and the switching-off operation is completed. The closing operation principle is the same.

The setting of blotter plays the effect of buffering, prolongs the life-span of each part.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Accordingly, all changes and modifications that come within the scope and range of the invention, or the equivalence of such scope and range, are desired to be protected.

Claims

1. The high-low voltage isolating switch is characterized by comprising a base (4), wherein a plurality of insulators (9) are uniformly arranged on two sides of the base (4), pressing sheets (2) are arranged on the insulators (9), the pressing sheets (2) on two sides of the base (4) are symmetrically arranged, a rotating shaft is arranged in the middle of the base (4), a supporting rod (7) is arranged on the rotating shaft, the left end of the supporting rod (7) is movably connected with a moving rod (8), the moving rod (8) is connected with a disconnecting link (3), a supporting sheet is connected to the right end of the disconnecting link (3) through a shaft, the supporting sheet is arranged on the pressing sheet (2), a disc (5) is arranged at one end of the rotating shaft, and a driving device is arranged on one side of the disc (5);

the driving device comprises a driving lever (6) and a fixing frame (15), wherein cylinders (16) are arranged at two ends of the fixing frame (15), a first rod (11) and a second rod (14) are arranged in the middle of the fixing frame (15), the right end of the first rod (11) and the right end of the second rod (14) are movably connected with the fixing frame (15), a spring (12) is arranged between the left end of the first rod (11) and the left end of the second rod (14), a baffle (13) is arranged at the bottom of the fixing frame (15), and the driving lever (6) is arranged at the left end of the first rod (11).

2. A high-low voltage isolation switch according to claim 1, characterized in that the first lever (11) is provided with a hole slot in the middle, the disc (5) is provided with a convex body, and the hole slot and the convex body are used together.

3. A high-low voltage disconnector according to claim 1, characterized in that a buffer pad (10) is arranged between the press plate (2) and the insulator (9).

4. A high-low voltage isolation switch according to claim 1, characterized in that the left end of the pressing sheet (2) is provided with a connector lug (1), and the pressing sheet (2) is L-shaped.

5. A high-low voltage disconnector according to claim 1, characterized in that the switch (3) is trapezoidal.

6. A high-low voltage disconnector according to claim 5, characterized in that the moving rod (8) is movably connected to the right part of the switch (3).