CN210692419U

CN210692419U - High-voltage isolating switch with strong conductivity

Info

Publication number: CN210692419U
Application number: CN201921127746.3U
Authority: CN
Inventors: 刘圣平
Original assignee: South China Electric Group Co Ltd
Current assignee: South China Electric Group Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-06-05
Anticipated expiration: 2029-07-18

Abstract

The utility model belongs to the technical field of electrical equipment, especially, be a high-voltage isolator that electric conductive property is strong, including bottom plate and plug-in strip, the insulator passes through the fixed column to be fixed at the top of bottom plate, the current conducting plate passes through the fixing bolt to be fixed at the top of insulator, be equipped with connecting seat, fixing base, bearing and pull ring on the plug-in strip, the both ends of plug-in strip are fixed with connecting seat and fixing base respectively, and the connecting seat with the plug-in strip rotates to be connected, the fixing base is fixed at the top of current conducting plate, the bearing runs through the plug-in strip inlays to be established in the inside of connecting seat, the pull ring is fixed at the top; the contact with the air is reduced, so that the connecting part is prevented from rusting and being clamped, the disconnecting link can be opened and closed smoothly in time, the service life of the switch is prolonged, the contact point of the disconnecting link and the conductive shaft is enlarged, and the conductivity of the switch is improved.

Description

High-voltage isolating switch with strong conductivity

Technical Field

The utility model relates to an electrical equipment technical field specifically is a high voltage isolator that electric conductive property is strong.

Background

The high-voltage isolating switch is an important switching device in an electric system of a power plant and a transformer substation, needs to be matched with a high-voltage circuit breaker for use, is connected under the condition that high-voltage equipment has voltage and no load current, is used for cutting off or converting a circuit, ensures the safety of the high-voltage device and the device during maintenance work, plays a role in isolating the voltage, cannot be used for cutting off, inputting the load current and cutting off the short-circuit current, and can only be used for certain switching operations without generating strong electric arcs, namely, the high-voltage isolating switch does not have an 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.

Chinese patent publication No. CN106504934A discloses an antirust high-voltage isolating switch, and this patent technology can inject lubricating oil into the oiling ring through the fuel injection system, and lubricating oil is sprayed from the nozzle hole of the inner ring, thereby lubricating the pillar and the shaft sleeve, thereby preventing the seizure, and enabling the switch to open and close smoothly in time, but the high-voltage isolating switch is fixed at a high place, and the worker needs to ascend a height during the operation, which is relatively troublesome, and has potential safety hazard. Accordingly, one skilled in the art provides a high voltage isolation switch with high conductivity to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high voltage isolator that electric conductive property is strong to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a high voltage isolator that electric conductive property is strong, includes bottom plate and plug-in strip, be equipped with fixed column, insulator, current conducting plate and fixing bolt on the bottom plate, the insulator passes through the fixed column is fixed the top of bottom plate, the current conducting plate passes through fixing bolt fixes the top of insulator, be equipped with connecting seat, fixing base, bearing and pull ring on the plug-in strip, the both ends of plug-in strip are fixed with connecting seat and fixing base respectively, just the connecting seat with the plug-in strip rotates to be connected, the fixing base is fixed the top of current conducting plate, the bearing runs through the plug-in strip inlays to be established the inside of connecting seat, the pull ring is fixed the top of plug-.

As a further aspect of the present invention: the bottom plate is provided with a plurality of mounting holes which are distributed on the bottom plate.

As a further aspect of the present invention: the connecting seat is provided with a rotating shaft, and the rotating shaft penetrates through the connecting seat and is rotatably connected with the bearing.

As a further aspect of the present invention: the knife holder is arranged on the knife switch and fixed at one end of the knife switch, and the knife switch is fixed on the connecting seat through the knife holder.

As a further aspect of the present invention: the sealing device is characterized in that sealing blocks are arranged on the fixing seat, the number of the sealing blocks is two, and the two sealing blocks are fixed on the inner walls of the two sides of the fixing seat respectively.

As a further aspect of the present invention: the fixing seat is provided with a conductive shaft, and the conductive shaft is arranged between the two sealing blocks.

As a further aspect of the present invention: the contact surface matched with the conductive shaft is arranged on the knife switch and is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the both ends of well plug-in strip are fixed with connecting seat and fixing base respectively, and the connecting seat rotates with the plug-in strip to be connected, the top at the current conducting plate is fixed to the fixing base, the bearing runs through the plug-in strip and inlays the inside of establishing at the connecting seat, the pivot runs through the connecting seat and rotates with the bearing to be connected, when using high-pressure isolator, the pulling pull ring passes through the cooperation of bearing and pivot, make the plug-in strip rotate and open and shut, because the bearing directly inlays to be established in the connecting seat, the bearing does not expose externally with the junction of pivot, reduce the contact with the air, thereby prevent that the junction from rustting the card and dying, can make the plug-in strip.

2. The utility model discloses in have sealed piece on the fixing base, the quantity of sealed piece is two, two sealed pieces are fixed respectively at the both sides inner wall of fixing base, conducting shaft has between two sealed pieces, set up on the plug-in strip with conducting shaft matched with arc contact surface, when the switch is closed, the contact surface realizes the circular telegram with the contact of conducting shaft, and curved contact surface makes the contact point of plug-in strip and conducting shaft enlarge, the electric conductivity of switch has been improved, block through two sealed pieces and plug-in strip seals the contact surface of plug-in strip and conducting shaft, prevent that the contact surface from being corroded by external factors such as air and rainwater, thereby reduce the electric conductivity of switch.

Drawings

Fig. 1 is a schematic structural diagram of a high-voltage isolating switch with high conductivity;

fig. 2 is a schematic structural diagram of a connecting seat in a high-voltage isolating switch with high conductivity;

fig. 3 is a schematic structural diagram of a knife blade in a high-voltage isolating switch with high conductivity;

fig. 4 is a schematic structural diagram of a fixing base in a high-voltage isolating switch with high conductivity.

In the figure: 1. a base plate; 101. mounting holes; 11. fixing a column; 12. an insulator; 14. a conductive plate; 16. fixing the bolt; 2. a knife switch; 201. a tool apron; 202. a contact surface; 21. a connecting seat; 211. a rotating shaft; 22. a fixed seat; 221. a sealing block; 222. a conductive shaft; 23. a bearing; 24. and (4) a pull ring.

Detailed Description

Please refer to fig. 1-4, in the embodiment of the present invention, a high voltage isolator with strong conductivity, including bottom plate 1 and plug-in strip 2, be equipped with fixed column 11 on bottom plate 1, insulator 12, conducting plate 14 and fixing bolt 16, insulator 12 fixes at the top of bottom plate 1 through fixed column 11, conducting plate 14 passes through fixing bolt 16 to be fixed at the top of insulator 12, be equipped with connecting seat 21 on plug-in strip 2, fixing seat 22, bearing 23 and pull ring 24, the both ends of plug-in strip 2 are fixed with connecting seat 21 and fixing seat 22 respectively, and connecting seat 21 rotates with plug-in strip 2 to be connected, fixing seat 22 fixes at the top of conducting plate 14, bearing 23 runs through plug-in strip 2 and inlays the inside established at connecting seat 21, pull ring 24 fixes at the top of.

In fig. 1: the insulator 12 is fixed on the top of the bottom plate 1 through the fixing column 11, the insulator 12 bears voltage and mechanical stress, the conductive plate 14 is fixed on the top of the insulator 12 through the fixing bolt 16, when in use, the bottom plate 1 is fixed with the outside through the mounting hole 101, the conductive plate 14 is electrically connected with an external cable for conducting electricity, the switch blade 2 is provided with a connecting seat 21, a fixed seat 22, a bearing 23 and a pull ring 24, two ends of the switch blade 2 are respectively fixed with the connecting seat 21 and the fixed seat 22, the connecting seat 21 is rotatably connected with the switch blade 2, the fixed seat 22 is fixed on the top of the conductive plate 14, the bearing 23 penetrates through the switch blade 2 and is embedded in the connecting seat 21, the pull ring 24 is fixed on the top of the switch blade 2, the switch blade 2 is provided with the connecting seat 21, the fixed seat 22, the bearing 23 and the pull ring 24, the bearing 23 penetrates through the switch blade 2 and is embedded in the connecting seat 21, the pull ring 24 is fixed at the top of the switch blade 2, when the high-voltage isolating switch is used, the pull ring 24 is pulled to be matched with the rotating shaft 211 through the bearing 23, so that the switch blade 2 rotates to open and close, because the bearing 23 is directly embedded in the connecting seat 21, the joint of the bearing 23 and the rotating shaft 211 is not exposed outside, the contact with air is reduced, the joint is prevented from rusting and clamping, the switch blade 2 can be opened and closed smoothly in time, the service life of the switch is prolonged, when the switch is closed, the contact surface 202 is contacted with the conductive shaft 222 to realize electrification, the arc-shaped contact surface 202 expands the contact point of the switch blade 2 and the conductive shaft 222, the conductivity of the switch is improved, the contact surface 202 of the switch blade 2 and the conductive shaft 222 is sealed through the clamping of the two conductive blocks 221 and the switch blade 2, and the contact surface 202 is prevented from being corroded by external, thereby reducing the conductivity of the switch.

In fig. 2: both ends of plug-in strip 2 are fixed with connecting seat 21 and fixing base 22 respectively, and connecting seat 21 rotates with plug-in strip 2 to be connected, fixing base 22 is fixed at the top of current conducting plate 14, bearing 23 runs through plug-in strip 2's blade holder 201 and inlays the inside of establishing at connecting seat 21, pivot 211 runs through connecting seat 21 and bearing 23 and rotates to be connected, when using high-pressure isolator, pulling pull ring 24 passes through bearing 23 and pivot 211's cooperation, make plug-in strip 2 rotate and open and shut, because bearing 23 directly inlays to be established in connecting seat 21, bearing 23 does not expose externally with the junction of pivot 211, reduce the contact with the air, thereby prevent that the junction from rustting the card extremely, can make plug-in strip 2 timely, smooth opening and shutting, the life of switch has been improved.

In fig. 3: one end of the switch blade 2 is rotatably connected with a connecting seat 21, a fixed seat 22 is fixed on the top of a conductive plate 14, a bearing 23 penetrates through the switch blade 2 and is embedded inside the connecting seat 21, a pull ring 24 is fixed on the top of the switch blade 2, when the high-voltage isolating switch is used, the pull ring 24 is pulled to enable the switch blade 2 to rotate to open and close through the matching of the bearing 23 and a rotating shaft 211, the bearing 23 is directly embedded in the connecting seat 21, the joint of the bearing 23 and the rotating shaft 211 is not exposed outside, the contact with air is reduced, the rusting and clamping of the joint are prevented, the switch blade 2 can be opened and closed smoothly in time, the service life of the switch is prolonged, when the switch is closed, the contact surface 202 is in contact with the conductive shaft 222 to realize electrification, the contact point of the switch blade 2 and the conductive shaft 222 is enlarged through the arc-shaped contact surface 202, the conductivity of the switch is improved, and the contact surface 202 of the switch blade 2 and the conductive, the contact surface 202 is prevented from being corroded by external factors such as air and rainwater, thereby reducing the conductivity of the switch.

In fig. 4: the fixed seat 22 is provided with two sealing blocks 221, the two sealing blocks 221 are respectively fixed on the inner walls of the two sides of the fixed seat 22, a conductive shaft 222 is arranged between the two sealing blocks 221, the switch blade 2 is provided with an arc-shaped contact surface 202 matched with the conductive shaft 222, when the switch is closed, the contact surface 202 is in contact with the conductive shaft 222 to realize electrification, the arc-shaped contact surface 202 enables the contact point of the switch blade 2 and the conductive shaft 222 to be enlarged, the conductivity of the switch is improved, the contact surface 202 of the switch blade 2 and the conductive shaft 222 is sealed through the clamping of the two sealing blocks 221 and the switch blade 2, the contact surface 202 is prevented from being corroded by external factors such as air, rainwater and the like, and the conductivity of the switch is reduced.

The utility model discloses a theory of operation is: when the utility model is used, the bottom plate 1 is fixed with the outside through the mounting hole 101, bear voltage and mechanical stress through the insulator 12, the conducting plate 14 conducts electricity with the external cable fixation, when using the high-voltage isolating switch, the pulling pull ring 24 makes the switch blade 2 rotate to open and close through the matching of the bearing 23 and the rotating shaft 211, because the bearing 23 is directly embedded in the connecting seat 21, the joint of the bearing 23 and the rotating shaft 211 is not exposed outside, the contact with air is reduced, thereby preventing the joint from rusting and blocking, and enabling the switch blade 2 to open and close smoothly in time, thereby prolonging the service life of the switch, when the switch is closed, the contact surface 202 is in contact with the conducting shaft 222 to realize electrification, and the arc-shaped contact surface 202 enlarges the contact point of the switch blade 2 and the conducting shaft 222, the conductivity of the switch is improved, the contact surface 202 of the switch blade 2 and the conducting shaft 222 is sealed through the two sealing blocks 221 and the block of the switch blade 2, the contact surface 202 is prevented from being corroded by external factors such as air and rainwater, thereby reducing the conductivity of the switch.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The high-voltage isolating switch with high conductivity comprises a bottom plate (1) and a switch blade (2), and is characterized in that a fixing column (11), an insulator (12), a conducting plate (14) and a fixing bolt (16) are arranged on the bottom plate (1), the insulator (12) is fixed to the top of the bottom plate (1) through the fixing column (11), the conducting plate (14) is fixed to the top of the insulator (12) through the fixing bolt (16), a connecting seat (21), a fixing seat (22), a bearing (23) and a pull ring (24) are arranged on the switch blade (2), the two ends of the switch blade (2) are respectively fixed with the connecting seat (21) and the fixing seat (22), the connecting seat (21) is rotatably connected with the switch blade (2), the fixing seat (22) is fixed to the top of the conducting plate (14), the bearing (23) penetrates through the switch blade (2) and is embedded in the connecting seat (21), the pull ring (24) is fixed on the top of the knife switch (2).

2. The high-voltage isolating switch with high conductivity as claimed in claim 1, wherein the bottom plate (1) is provided with a plurality of mounting holes (101), and the plurality of mounting holes (101) are distributed on the bottom plate (1).

3. The high-voltage isolating switch with high conductivity as claimed in claim 1, wherein a rotating shaft (211) is disposed on the connecting seat (21), and the rotating shaft (211) penetrates through the connecting seat (21) and is rotatably connected to the bearing (23).

4. The high-voltage isolating switch with high conductivity as claimed in claim 1, wherein a knife holder (201) is disposed on the switch blade (2), the knife holder (201) is fixed at one end of the switch blade (2), and the switch blade (2) is fixed on the connecting seat (21) through the knife holder (201).

5. The high-voltage isolating switch with high conductivity as claimed in claim 1, wherein the fixing base (22) is provided with two sealing blocks (221), and the two sealing blocks (221) are respectively fixed on the inner walls of the two sides of the fixing base (22).

6. The electrically conductive high-voltage isolating switch as claimed in claim 5, wherein a conductive shaft (222) is disposed on the fixing base (22), and the conductive shaft (222) is disposed between the two sealing blocks (221).

7. The high-voltage isolating switch with high conductivity as claimed in claim 6, wherein the contact surface (202) matched with the conductive shaft (222) is formed on the switch blade (2), and the contact surface (202) is arc-shaped.