CN114123012B

CN114123012B - Safe-use inflatable switch cabinet and working method

Info

Publication number: CN114123012B
Application number: CN202210099374.8A
Authority: CN
Inventors: 张志明; 杨长征; 胡建; 杨勇; 王勇; 黄彬
Original assignee: Sichuan Electric Appliance Group Middle And Low Voltage Intelligent Distribution Co ltd
Current assignee: Sichuan Electric Appliance Group Middle And Low Voltage Intelligent Distribution Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-04-01
Anticipated expiration: 2042-01-27
Also published as: CN114123012A

Abstract

The invention discloses an inflatable switch cabinet for safe use and a working method thereof, wherein the inflatable switch cabinet comprises an air box, a controller, a breaker driving shaft, an isolating switch driving shaft, a breaker, an isolating switch, an energy storage device, a breaker angle sensor, an isolating switch angle sensor, a breaker damping fixing device, an isolating switch damping fixing device, a breaker operating device and an isolating switch operating device; the circuit breaker angle sensor, the isolating switch angle sensor, the circuit breaker damping fixing device and the isolating switch damping fixing device are respectively connected with the controller, the controller is respectively connected with the circuit breaker operating device and the isolating switch operating device, whether the circuit breaker is disconnected or not is judged through the circuit breaker angle sensor, therefore, an operator can operate the isolating switch to be disconnected through the controller, whether the isolating switch is closed or not is judged through the isolating switch angle sensor, so that the operator can operate the circuit breaker to be closed through the controller, and safety accidents caused by misoperation of the operator are effectively avoided.

Description

Safe-use inflatable switch cabinet and working method

Technical Field

The invention relates to the technical field of switch equipment, in particular to a safe inflatable switch cabinet.

Background

A switchgear is the general term for a combination of a switchgear with associated control, measuring, protection and regulating equipment, and with associated accessories, housings and supports and their internal connections.

The inflatable switch cabinet is one of switch cabinets, can be divided into a cabinet frame type and an enclosing type according to the structure, the cabinet frame type switch cabinet generally comprises four stand columns, four cross beams distributed at the top and the bottom form a cuboid space, electrical components are installed in the cuboid space through installation strips and installation plates installed on the cabinet frame, covering plates and partition plates are installed on the cabinet frame, and the protection effect is achieved.

The circuit breaker and the isolating switch of the traditional gas-filled switch cabinet are respectively provided with an energy storage device, the circuit breaker and the isolating switch are respectively driven to act through the corresponding energy storage devices, and under the normal working condition of the gas-filled switch cabinet, the circuit breaker only needs to be controlled to work, and the energy storage devices of the isolating switch are not frequently used, so that the working reliability of the gas-filled switch cabinet is influenced by rusting; in addition, when the switch cabinet equipment needs to be overhauled, the circuit breaker must be disconnected firstly, and then the isolating switch must be disconnected, so that safety accidents are avoided; after the maintenance is finished, the disconnecting switch needs to be closed firstly, and then the circuit breaker needs to be closed. However, during maintenance, an operator easily forgets to turn off the disconnecting switch, only turns off the breaker, and under the condition that the interlocking function of the switchgear is normal, the operator cannot open the cabinet door. However, if the interlock function of the switchgear fails, the operator can directly open the switchgear for maintenance, which can lead to a significant safety hazard.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an inflatable switch cabinet and a working method.

The purpose of the invention is realized by the following technical scheme:

a safe-use inflatable switch cabinet comprises a cabinet body, wherein an air box, a mechanism operating chamber and a switch judging chamber are arranged in the cabinet body, a controller is arranged on the cabinet body, a circuit breaker and an isolating switch are arranged in the air box, and a circuit breaker driving shaft for driving the circuit breaker and an isolating switch driving shaft for driving the isolating switch are also arranged in the air box;

the mechanism operation chamber and the switch judgment chamber are positioned on two sides of the air box; two ends of the circuit breaker driving shaft respectively penetrate through the air box and extend into the mechanism operating chamber and the switch judging chamber, and two ends of the isolating switch driving shaft respectively penetrate through the air box and extend into the mechanism operating chamber and the switch judging chamber;

the mechanism operating room is internally provided with a circuit breaker operating device, an isolating switch operating device, a circuit breaker transmission shaft and an isolating switch transmission shaft, the circuit breaker transmission shaft is in disconnectable or transmission connection with the circuit breaker driving shaft through the circuit breaker operating device, the isolating switch transmission shaft is arranged in the mechanism operating room and is in disconnectable or transmission connection with the isolating switch driving shaft through the isolating switch operating device, meanwhile, the mechanism operating room is also provided with a transmission shaft, the transmission shaft extends out of the mechanism operating room and is connected with an energy storage device, the transmission shaft is provided with a driving gear, and the circuit breaker transmission shaft and the isolating switch transmission shaft are respectively provided with a driven gear meshed with the driving gear;

the circuit breaker driving shaft is provided with a circuit breaker driving wheel in the switch judging chamber, the circuit breaker driving shaft extends out of the switch judging chamber and is connected with a circuit breaker damping fixing device used for controlling whether the circuit breaker driving shaft is in a rotating state or not, a circuit breaker driven shaft is arranged in the switch judging chamber and provided with a circuit breaker driven wheel, the circuit breaker driven wheel is connected with the circuit breaker driving wheel through a circuit breaker transmission part, and the circuit breaker driven shaft penetrates through the switch judging chamber and is connected with a circuit breaker angle sensor;

the isolating switch driving shaft is provided with an isolating switch driving wheel in the switch judging chamber, the isolating switch driving shaft extends out of the switch judging chamber and is connected with an isolating switch damping fixing device used for controlling whether the isolating switch driving shaft is in a rotating state or not, an isolating switch driven shaft is arranged in the switch judging chamber and is provided with an isolating switch driven wheel, the isolating switch driven wheel is connected with the isolating switch driving wheel through an isolating switch transmission part, and the isolating switch driven shaft penetrates through the switch judging chamber and is connected with an isolating switch angle sensor;

the circuit breaker angle sensor, isolator angle sensor circuit breaker damping fixing device with isolator damping fixing device respectively with the controller is connected, simultaneously, the controller respectively with circuit breaker operating means with isolator operating means connects.

Further, the switch cabinet the external circuit breaker pilot lamp that is used for judging of cabinet body whether the circuit breaker breaks off is provided with, the external isolator pilot lamp that is used for judging of cabinet body whether isolator breaks off is provided with to the external, the controller respectively with the circuit breaker pilot lamp with the isolator pilot lamp is connected.

Furthermore, the breaker driving wheel, the breaker driven wheel, the isolating switch driving wheel and the isolating switch driven wheel are chain wheels, and the breaker transmission part and the isolating switch transmission part are chains; or

The circuit breaker action wheel the circuit breaker from the driving wheel the isolator action wheel with isolator is the belt pulley from the driving wheel, the circuit breaker driving medium with the isolator driving medium is the belt.

Further, the circuit breaker operating device comprises a circuit breaker mounting shell, the circuit breaker mounting shell is mounted on the inner wall of the mechanism operating room, the circuit breaker driving shaft extends into the circuit breaker mounting shell, a circuit breaker stop block is arranged at the tail end of the circuit breaker driving shaft, a slidable circuit breaker sliding friction plate is sleeved in the circuit breaker mounting shell, the circuit breaker driving shaft sequentially penetrates through the circuit breaker mounting shell and a circuit breaker fixed friction plate, the circuit breaker fixed friction plate is arranged in the circuit breaker mounting shell, the circuit breaker sliding friction plate and the circuit breaker fixed friction plate are coaxially arranged, a first circuit breaker spring is sleeved on the circuit breaker driving shaft, one end of the first circuit breaker spring is abutted against the inner wall of the circuit breaker mounting shell, and the other end of the first circuit breaker spring is abutted against the circuit breaker sliding friction plate, with passing through the thrust of first circuit breaker spring will circuit breaker slip friction disc with circuit breaker fixed friction disc transmission friction contact, circuit breaker slip friction disc is kept away from the back of circuit breaker fixed friction disc is provided with circuit breaker annular iron plate, be provided with on the inner wall of circuit breaker installation casing with the circuit breaker annular electromagnet that circuit breaker annular iron plate corresponds, circuit breaker annular electromagnet disposes first power, the controller is connected with first power.

Further, in the circuit breaker installation casing the circuit breaker drive shaft is provided with a plurality of circuit breaker axial spouts, the fixed card that is provided with of circuit breaker slip friction disc is gone into the circuit breaker slider of circuit breaker axial spout.

Further, the isolating switch operating device comprises an isolating switch mounting shell, the isolating switch mounting shell is mounted on the inner wall of the mechanism operating room, the isolating switch driving shaft extends into the isolating switch mounting shell, an isolating switch stop block is arranged at the tail end of the isolating switch driving shaft, a slidable isolating switch sliding friction plate is sleeved in the isolating switch mounting shell, the isolating switch driving shaft sequentially penetrates through the isolating switch mounting shell and the isolating switch fixed friction plate, the isolating switch fixed friction plate is arranged in the isolating switch mounting shell, the isolating switch sliding friction plate and the isolating switch fixed friction plate are coaxially arranged, a plurality of sliding holes are formed in the isolating switch sliding friction plate, which is far away from the isolating switch fixed friction plate, be provided with the slide bar in the slide opening, the one end of slide bar is fixed on the inner wall of isolator installation casing, be provided with first isolator spring between the slide bar other end and the slide opening inner wall, with pass through the thrust of first isolator spring will isolator slip friction disc with isolator fixes the friction disc transmission friction contact, isolator slip friction disc is kept away from the back of isolator fixes the friction disc is provided with a plurality of isolator annular iron plates, be provided with on the inner wall of isolator installation casing with the isolator annular iron plate that isolator annular iron plate corresponds, isolator annular iron plate disposes the second power, the controller is connected with the second power.

Furthermore, a plurality of isolating switch axial sliding grooves are formed in an isolating switch driving shaft in the isolating switch mounting shell, and isolating switch sliding blocks clamped into the isolating switch axial sliding grooves are fixedly arranged on the isolating switch sliding friction plates.

Further, the circuit breaker damping fixing device comprises a circuit breaker movable friction disc and a circuit breaker fixed friction disc, and the circuit breaker fixed friction disc is fixed at one end of the circuit breaker driving shaft; the circuit breaker damping fixing device comprises a circuit breaker threaded sleeve and a circuit breaker rotating disc, the circuit breaker threaded sleeve is fixed on the switch judgment chamber, and the circuit breaker rotating disc is arranged in the circuit breaker threaded sleeve and is in threaded fit connection with the circuit breaker threaded sleeve; a breaker guide disc is arranged between the breaker rotating disc and the breaker movable friction disc, a plurality of breaker guide grooves are axially arranged on the breaker guide disc, breaker guide rods are arranged in the breaker guide grooves and extend into the breaker rotating disc, a second breaker spring is arranged between the breaker rotating disc and the breaker movable friction disc, and breaker iron blocks and breaker electromagnet blocks are respectively arranged on the opposite surfaces of the breaker rotating disc and the breaker movable friction disc; the movable friction disc of the circuit breaker is fixedly connected with the guide disc of the circuit breaker; the breaker electromagnet block is provided with a third power supply, and the third power supply is connected with the controller.

Furthermore, the isolating switch damping fixing device comprises an isolating switch movable friction disc and an isolating switch fixing friction disc, and the isolating switch fixing friction disc is fixed at one end of the isolating switch driving shaft; the isolating switch damping fixing device comprises an isolating switch inner thread sleeve and an isolating switch rotating disc, the isolating switch inner thread sleeve is fixed on the switch judgment chamber, and the isolating switch rotating disc is arranged in the isolating switch inner thread sleeve and is in threaded fit connection with the isolating switch inner thread sleeve; an isolating switch guide disc is arranged between the isolating switch rotating disc and the isolating switch movable friction disc, a plurality of isolating switch guide grooves are axially arranged on the isolating switch guide disc, isolating switch guide rods are arranged in the isolating switch guide grooves and extend into the isolating switch rotating disc, a second isolating switch spring is arranged between the isolating switch rotating disc and the isolating switch movable friction disc, and an isolating switch iron block and an isolating switch electromagnet block are respectively arranged on the opposite surfaces of the isolating switch rotating disc and the isolating switch movable friction disc; the isolating switch movable friction disc is fixedly connected with the isolating switch guide disc; the isolating switch electromagnet block is provided with a fourth power supply, and the fourth power supply is connected with the controller.

A working method for safely using an inflatable switch cabinet comprises the following steps:

(1) preparation work for opening the circuit breaker: the controller controls the first power supply to be powered off, so that the sliding friction plate of the circuit breaker is abutted against the fixed friction plate of the circuit breaker under the action of the first circuit breaker spring, and the transmission shaft of the circuit breaker is in transmission contact with the driving shaft of the circuit breaker; the controller controls the second power supply to be electrified, so that the sliding friction plate of the isolating switch overcomes the resistance of the first isolating switch spring and is disconnected with the fixed friction plate of the isolating switch under the action of the attraction force of the annular electromagnet block of the isolating switch and the annular iron block of the isolating switch, and the transmission shaft of the isolating switch is disconnected with the driving shaft of the isolating switch; meanwhile, the controller controls the fourth power supply to be powered off, so that the movable friction disc of the isolating switch and the fixed friction disc of the isolating switch generate friction damping under the action of the second isolating switch spring, and the isolating switch is prevented from driving the isolating switch to act by the rotation of the driving shaft of the isolating switch; the controller controls the third power supply to be electrified, so that the movable friction disc of the circuit breaker overcomes the resistance of the second circuit breaker spring and is separated from the fixed friction disc of the circuit breaker under the action of the suction force of the electromagnetic iron block of the circuit breaker and the iron block of the circuit breaker, the driving shaft of the circuit breaker is in a free state, and the circuit breaker can be rotationally driven to act;

(2) opening the circuit breaker: the controller drives the energy storage device to start working, the energy storage device drives the transmission shaft to rotate, the transmission shaft drives the breaker transmission shaft and the disconnecting switch transmission shaft to rotate, the breaker transmission shaft is in transmission contact with the breaker driving shaft, the breaker driving shaft rotates to drive the breaker to be disconnected, and meanwhile, the breaker angle sensor records whether the breaker transmission shaft generates rotation disconnection information or not and sends the rotation disconnection information to the controller; after the circuit breaker is disconnected, the controller controls the third power supply to be powered off, so that the movable friction disc of the circuit breaker and the fixed friction disc of the circuit breaker generate friction damping under the action of the second circuit breaker spring, and the circuit breaker is prevented from driving a circuit breaker to act by rotating a circuit breaker driving shaft; the controller controls the second power supply to be powered off, so that the sliding friction plate of the isolating switch is abutted against the fixed friction plate of the isolating switch under the action of the spring of the first isolating switch, and the transmission shaft of the isolating switch is in transmission contact with the driving shaft of the isolating switch;

(3) disconnecting the isolating switch: the controller identifies the rotation breaking information sent by the breaker angle sensor and judges whether the breaker is broken or not, if the breaker is broken, the controller controls the first power supply to be electrified, so that the sliding friction plate of the breaker overcomes the resistance of the first breaker spring and is broken with the fixed friction plate of the breaker under the action of the suction force of the annular electromagnet block of the breaker and the annular iron block of the breaker, and the transmission shaft of the breaker is broken with the driving shaft of the breaker; meanwhile, the controller controls the fourth power supply to be electrified, so that the isolating switch movable friction disc overcomes the resistance of a second isolating switch spring and is separated from the isolating switch fixed friction disc under the action of the attraction force of the isolating switch electromagnet block and the isolating switch iron block, the isolating switch driving shaft is in a free state, and the isolating switch can be driven to act in a rotating mode; the controller drives the energy storage device to start working, the energy storage device drives the transmission shaft to rotate, the transmission shaft drives the breaker transmission shaft and the disconnecting switch transmission shaft to rotate, and the disconnecting switch transmission shaft rotates to drive the disconnecting switch to be disconnected as the disconnecting switch transmission shaft is in transmission contact with the disconnecting switch transmission shaft; after the isolating switch is disconnected, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(4) after the overhaul is finished, closing the isolating switch: the controller controls the fourth power supply to be electrified, so that the isolating switch movable friction disc overcomes the resistance of a second isolating switch spring and is separated from the isolating switch fixed friction disc under the action of the attraction force of the isolating switch electromagnet block and the isolating switch iron block, the isolating switch driving shaft is in a free state, and the isolating switch can be driven to act in a rotating mode; the controller controls the first power supply to be electrified, so that the sliding friction plate of the circuit breaker overcomes the resistance of a first circuit breaker spring under the action of the suction force of the annular electromagnet block of the circuit breaker and the annular iron block of the circuit breaker to be disconnected with the fixed friction plate of the circuit breaker, a transmission shaft of the circuit breaker is disconnected with a driving shaft of the circuit breaker, the controller drives the energy storage device to start working, the energy storage device drives the transmission shaft to rotate, the transmission shaft drives the transmission shaft of the circuit breaker and the transmission shaft of the disconnecting switch to rotate, and the disconnecting switch driving shaft rotates to drive the disconnecting switch to be closed due to the transmission contact between the transmission shaft of the disconnecting switch and the driving shaft of the disconnecting switch; meanwhile, the disconnecting switch angle sensor records whether the disconnecting switch transmission shaft rotates to close information or not and sends the rotating to close information to the controller; after the isolating switch is closed, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(5) closing the circuit breaker: the controller identifies the rotation closing information sent by the isolating switch angle sensor and judges whether the isolating switch is disconnected or not, if the isolating switch is disconnected, the controller controls the second power supply to be electrified, so that the sliding friction plate of the isolating switch overcomes the resistance of the first isolating switch spring and is disconnected with the fixed friction plate of the isolating switch under the action of the suction force of the annular electromagnet block of the isolating switch and the annular iron block of the isolating switch, and the transmission shaft of the isolating switch is disconnected with the driving shaft of the isolating switch; meanwhile, the controller controls a third power supply to be electrified, so that the movable friction disc of the circuit breaker overcomes the resistance of a second circuit breaker spring and is separated from the fixed friction disc of the circuit breaker under the action of the suction force of the electromagnetic iron block of the circuit breaker and the iron block of the circuit breaker, the driving shaft of the circuit breaker is in a free state, and the circuit breaker can be rotationally driven to act; the controller drives the energy storage device to start working, the energy storage device drives the transmission shaft to rotate, the transmission shaft drives the breaker transmission shaft and the disconnecting switch transmission shaft to rotate, and the breaker transmission shaft is in transmission contact with the breaker driving shaft, so that the breaker driving shaft rotates to drive the breaker to close; and after the breaker is closed, the controller controls the second power supply to be powered off and the third power supply to be powered off.

The invention has the beneficial effects that:

1) the invention can respectively open and close the breaker and the isolating switch through one energy storage device, thereby reducing the manufacturing cost and being convenient to control; the invention simplifies the structure, improves the reliability, reduces the volume and reduces the floor area of the switch cabinet.

2) The circuit breaker angle sensor, the isolating switch angle sensor, the circuit breaker damping fixing device and the isolating switch damping fixing device are respectively connected with the controller, and the controller is respectively connected with the circuit breaker operating device and the isolating switch operating device, namely the circuit breaker angle sensor and the isolating switch angle sensor can transmit the opening and closing states of the circuit breaker and the isolating switch to the controller; the controller can be directly operated to respectively open and close the circuit breaker and the isolating switch; so the operator can discern the state of circuit breaker and isolator simultaneously at a glance to operate isolator and circuit breaker divide-shut brake through the controller, thereby effectively avoid operator maloperation circuit breaker or isolator, and lead to the incident.

Drawings

FIG. 1 is a left side view of a gas-filled switchgear cabinet according to the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural view of a circuit breaker operating device;

FIG. 4 is a schematic structural diagram of the disconnecting switch operating device;

fig. 5 is a schematic structural view of a circuit breaker damping fixture;

fig. 6 is a schematic structural diagram of the damping fixing device of the isolating switch.

In the figure, 1-cabinet, 2-gas box, 3-circuit breaker, 4-circuit breaker driving shaft, 5-isolating switch, 6-isolating switch driving shaft, 7-mechanism operating chamber, 8-switch judging chamber, 9-circuit breaker driving shaft, 10-circuit breaker operating device, 11-isolating switch driving shaft, 12-isolating switch operating device, 13-driving shaft, 14-energy storing device, 15-driving gear, 16-driven gear, 17-circuit breaker driving wheel, 18-circuit breaker damping fixing device, 19-circuit breaker driven shaft, 20-circuit breaker driven wheel, 21-circuit breaker driving part, 22-circuit breaker angle sensor, 23-isolating switch driving wheel, 24-isolating switch damping fixing device, 25-a disconnector driven shaft, 26-a disconnector driven wheel, 27-a disconnector transmission part, 28-a disconnector angle sensor, 29-a breaker mounting housing, 30-a breaker stop, 31-a breaker sliding friction plate, 32-a breaker fixed friction plate, 33-a first breaker spring, 34-a breaker annular iron block, 35-a breaker annular electromagnet block, 37-a breaker axial chute, 38-a breaker slide block, 39-a disconnector mounting housing, 40-a disconnector stop, 41-a disconnector sliding friction plate; 42-a disconnector fixed friction plate, 43-a slide rod, 44-a first disconnector spring, 45-a disconnector annular iron block, 46-a disconnector annular electromagnet block, 47-a breaker fixed friction disc, 48-a disconnector axial sliding groove, 49-a disconnector slide block, 50-a breaker movable friction disc; 51-breaker threaded bushing, 52-breaker rotary plate, 53-breaker guide plate, 54-breaker guide groove, 55-breaker guide rod, 56-second breaker spring, 57-breaker iron block, 58-breaker electromagnet block, 60-disconnector movable friction disc, 61-disconnector fixed friction disc, 62-disconnector inner threaded bushing, 63-disconnector rotary plate, 64-disconnector guide plate, 65-disconnector guide groove, 66-disconnector guide rod, 67-second disconnector spring, 68-disconnector iron block, 69-disconnector electromagnet block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution:

a safe-use inflatable switch cabinet comprises a cabinet body 1, wherein an air box 2, a mechanism operating chamber 7 and a switch judging chamber 8 are arranged in the cabinet body 1, a controller is arranged on the cabinet body 1, a circuit breaker 3 and an isolating switch 5 are arranged in the air box 2, a circuit breaker driving shaft 4 for driving the circuit breaker 3 is arranged in the circuit breaker 3, and an isolating switch driving shaft 6 for driving the isolating switch 5 is arranged in the isolating switch 5; preferably, the breaker drive shaft 4 and the disconnector drive shaft 6 are arranged laterally in parallel. In addition, the way in which the circuit breaker drive shaft 4 drives the circuit breaker 3 and the circuit breaker 3 itself are prior art; the manner in which the disconnector drive shaft 6 drives the disconnector 5 and the disconnector 5 itself belong to the prior art.

The mechanism operation chamber 7 and the switch judgment chamber 8 are positioned at two sides of the air box 2; two ends of a circuit breaker driving shaft 4 respectively penetrate through the air box 2 and extend into the mechanism operation chamber 7 and the switch judgment chamber 8, and two ends of an isolating switch driving shaft 6 respectively penetrate through the air box 2 and extend into the mechanism operation chamber 7 and the switch judgment chamber 8; specifically, the cabinet body 1 is partitioned into a mechanism operating chamber 7, an air tank 2 and a switch judging chamber 8 by two vertical partition plates.

A circuit breaker operating device 10, a disconnecting switch operating device 12, a circuit breaker transmission shaft 9 and a disconnecting switch transmission shaft 11 are arranged in the mechanism operating chamber 7, one end of the circuit breaker transmission shaft 9 is rotatably connected with the inner wall of the mechanism operating chamber 7, the other end of the circuit breaker transmission shaft 9 is in disconnectable or transmission connection with the circuit breaker driving shaft 4 through the circuit breaker operating device 10, the isolating switch transmission shaft 11 is arranged in the mechanism operating chamber 7, one end of the isolating switch transmission shaft 11 is rotatably connected with the inner wall of the mechanism operating chamber 7, the other end of the isolating switch transmission shaft 11 is in disconnectable or transmission connection with the disconnecting switch driving shaft 6 through the disconnecting switch operating device 12, the mechanism operating chamber 7 is provided with a transmission shaft 13, two ends of the transmission shaft 13 are respectively rotatably connected with the inner wall of the mechanism operating chamber 7, the transmission shaft 13 extends out of the mechanism operating chamber 7 to be connected with an energy storage device 14, the transmission shaft 13 is provided with a driving gear 15, the circuit breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 are respectively provided with a driven gear 16 meshed with the driving gear 15; the transmission shaft 13, the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 are in meshed transmission with a driven gear 16 through a driving gear 15.

A breaker driving wheel 17 is arranged in the switch judgment chamber 8 of the breaker driving shaft 4, the breaker driving shaft 4 extends out of the switch judgment chamber 8 and is connected with a breaker damping fixing device 18 used for controlling whether the breaker driving shaft is in a rotating state or not, a breaker driven shaft 19 is arranged in the switch judgment chamber 8, the breaker driven shaft 19 is provided with a breaker driven wheel 20, the breaker driven wheel 20 is connected with the breaker driving wheel 17 through a breaker transmission part 21, and the breaker driven shaft 19 penetrates through the switch judgment chamber 8 and is connected with a breaker angle sensor 22; when the circuit breaker 3 is disconnected, the circuit breaker drive shaft 4 can rotate, the circuit breaker drive shaft 4 drives the circuit breaker driven shaft 19 to rotate through the circuit breaker driven wheel 20, the circuit breaker driving wheel 17 and the circuit breaker transmission part 21, and the circuit breaker angle sensor 22 records the circuit breaker driven shaft 19 rotation information (rotation disconnection information) so as to judge whether the circuit breaker 3 is disconnected.

Preferably, the breaker driving wheel 17 and the breaker driven wheel 20 are belt pulleys, and the breaker transmission part 21 is a belt; or, the circuit breaker driving wheel 17 and the circuit breaker driven wheel 20 are chain wheels, and the circuit breaker transmission part 21 is a chain, and the specific mode can be selected by a person skilled in the art according to actual conditions.

The isolating switch driving shaft 6 is internally provided with an isolating switch driving wheel 23 in the switch judging chamber 8, the isolating switch driving shaft 6 extends out of the switch judging chamber 8 and is connected with an isolating switch damping fixing device 24 for controlling whether the isolating switch driving shaft is in a rotating state or not, an isolating switch driven shaft 25 is arranged in the switch judging chamber 8, the isolating switch driven shaft 25 is provided with an isolating switch driven wheel 26, the isolating switch driven wheel 26 is connected with the isolating switch driving wheel 23 through an isolating switch transmission piece 27, and the isolating switch driven shaft 25 penetrates through the switch judging chamber 8 and is connected with an isolating switch angle sensor 28; when the disconnecting switch 5 is closed, the disconnecting switch driving shaft 6 can rotate, the disconnecting switch driving shaft 6 drives the disconnecting switch driven shaft 25 to rotate through the disconnecting switch driven wheel 26, the disconnecting switch driving wheel 23 and the disconnecting switch transmission piece 27, and the disconnecting switch angle sensor 28 records the rotation information (rotation closing information) of the disconnecting switch driven shaft 25 so as to judge whether the disconnecting switch 5 is closed.

Preferably, the disconnecting switch driving wheel 23 and the disconnecting switch driven wheel 26 are chain wheels, and the disconnecting switch transmission piece 27 is a chain; or the disconnecting switch driving wheel 23 and the disconnecting switch driven wheel 26 are belt pulleys, and the disconnecting switch transmission member 27 is a belt, and the specific mode can be selected by a person skilled in the art according to the actual situation.

The circuit breaker angle sensor 22, the disconnector angle sensor 28, the circuit breaker damping fixture 18 and the disconnector damping fixture 24 are connected to a controller, which is connected to the circuit breaker operating device 10 and the disconnector operating device 12, respectively.

Before the circuit breaker 3 needs to be opened: the controller controls the breaker operating device 10 to make the breaker transmission shaft 9 in transmission contact with the breaker driving shaft 4; the controller controls the disconnecting switch operating device 12 to disconnect the disconnecting switch transmission shaft 11 from the disconnecting switch driving shaft 6; meanwhile, the controller controls the isolating switch damping fixing device 24 to enable the isolating switch transmission shaft 11 to be in a damping non-rotatable state; the controller controls the breaker damping fixing device 18 to enable the breaker transmission shaft 9 to be in a rotatable state, and the breaker transmission shaft 9 can be rotated to drive the breaker 3 to act.

The invention opens the circuit breaker 3: the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, the breaker transmission shaft 9 is in transmission contact with the breaker driving shaft 4, the breaker driving shaft 4 rotates to drive the breaker 3 to be disconnected, and meanwhile, the breaker angle sensor 22 records whether the breaker transmission shaft 9 rotates to disconnect information or not and sends the rotation disconnection information to the controller.

The invention disconnects the isolating switch 5: the controller identifies the rotation breaking information sent by the breaker angle sensor 22 and indicates whether the breaker 3 is broken, if so, the controller controls the breaker operating device 10 to break the breaker transmission shaft 9 and the breaker driving shaft 4; the controller controls the breaker damping fixing device 18 to enable the breaker transmission shaft 9 to be in a damping non-rotatable state; meanwhile, the controller controls the disconnecting switch operating device 12 to enable the disconnecting switch transmission shaft 11 to be in transmission contact with the disconnecting switch driving shaft 6, and controls the disconnecting switch damping fixing device 24 to enable the disconnecting switch transmission shaft 11 to be in a rotatable state, so that the disconnecting switch transmission shaft 11 can rotate to drive the disconnecting switch 5 to act; the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the disconnecting switch transmission shaft 6 rotates to drive the disconnecting switch 5 to be disconnected due to the fact that the disconnecting switch transmission shaft 11 is in transmission contact with the disconnecting switch driving shaft 6.

After the maintenance is finished, the isolating switch 5 is closed: the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the disconnecting switch transmission shaft 6 rotates to drive the disconnecting switch 5 to be closed due to the fact that the disconnecting switch transmission shaft 11 is in transmission contact with the disconnecting switch transmission shaft 6; meanwhile, the disconnecting switch angle sensor 28 records whether the disconnecting switch transmission shaft 11 rotates and closes information, and sends the rotating and closing information to the controller.

Closing the circuit breaker 3 of the present invention: the controller identifies the rotation closing information sent by the isolating switch angle sensor 28 and indicates whether the isolating switch 5 is disconnected, and if so, the controller controls the isolating switch operating device 12 to disconnect the isolating switch transmission shaft 11 from the isolating switch driving shaft 6; the controller controls the isolating switch damping fixing device 24 to enable the isolating switch transmission shaft 11 to be in a non-rotatable state; meanwhile, the controller controls the breaker damping fixing device 18 to enable the breaker transmission shaft 9 to be in a rotatable state, namely the breaker transmission shaft 9 is rotated to drive the breaker 3 to act, and the controller controls the breaker operating device 10 to enable the breaker transmission shaft 9 to be in transmission contact with the breaker driving shaft 4; the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the breaker transmission shaft 9 is in transmission contact with the breaker driving shaft 4, so that the breaker driving shaft 4 rotates to drive the breaker 3 to be closed.

Gas tank 2, mechanism operation room 7 and switch judge that room 8 sets up in the cabinet body 1, and cabinet body 1 is provided with the circuit breaker pilot lamp that is used for judging whether circuit breaker 3 breaks off outward, and cabinet body 1 is provided with the isolator pilot lamp that is used for judging whether the disconnection of isolator 5 breaks off outward, and the controller is connected with circuit breaker pilot lamp and isolator pilot lamp respectively. The controller judges whether the breaker 3 is disconnected or not through the rotation disconnection information sent by the breaker angle sensor 22, if so, the controller controls the breaker indicator lamp to light up to remind an operator that the breaker 3 is disconnected; the controller judges whether the isolating switch 5 is closed or not through rotation closing information sent by the isolating switch angle sensor 28, and if yes, the controller controls the closing switch indicator lamp to light up to remind an operator that the isolating switch 5 is closed.

The circuit breaker operating device 10 comprises a circuit breaker mounting case 29 mounted on the inner wall of the mechanism operating chamber 7, the circuit breaker mounting case 29 is mounted on the inner wall of the mechanism operating chamber 7, a circuit breaker driving shaft 4 extends into the circuit breaker mounting case 29 and has a circuit breaker stopper 30 at its end, the circuit breaker driving shaft 4 is provided with a slidable circuit breaker sliding friction plate 31 inside the circuit breaker mounting case 29, a circuit breaker driving shaft 9 sequentially penetrates through the circuit breaker mounting case 29 and a circuit breaker fixing friction plate 32, the circuit breaker fixing friction plate 32 is disposed inside the circuit breaker mounting case 29, the circuit breaker sliding friction plate 31 is disposed coaxially with the circuit breaker fixing friction plate 32, the circuit breaker driving shaft 4 is provided with a first circuit breaker spring 33, one end of the first circuit breaker spring 33 abuts against the inner wall of the circuit breaker mounting case 29 and the other end thereof abuts against the circuit breaker sliding friction plate 31, the circuit breaker sliding friction plate 31 is in transmission friction contact with the circuit breaker fixed friction plate 32 through the thrust of the first circuit breaker spring 33, a circuit breaker annular iron block 34 is arranged on the back surface of the circuit breaker sliding friction plate 31 away from the circuit breaker fixed friction plate 32, a circuit breaker annular electromagnet block 35 corresponding to the circuit breaker annular iron block 34 is arranged on the inner wall of the circuit breaker installation shell 29, a first power supply is configured on the circuit breaker annular electromagnet block 35, and the controller is connected with the first power supply; the breaker drive shaft 4 in the breaker mounting case 29 is provided with a plurality of breaker axial sliding grooves 37, and the breaker sliding friction plates 31 are fixedly provided with breaker sliders 38 that are fitted into the breaker axial sliding grooves 37. The circuit breaker operating device 10 can push the circuit breaker sliding friction plate 31 to slide through the first circuit breaker spring 33, so that the circuit breaker sliding friction plate 31 is in transmission friction contact with the circuit breaker fixed friction plate 32; or the circuit breaker sliding friction plate 31 is disconnected from the circuit breaker fixed friction plate 32 by overcoming the resistance of the first circuit breaker spring 33 under the action of the attraction force of the circuit breaker annular electromagnet block 35 and the circuit breaker annular iron block 34 through the electrification of the first power supply; and the breaker slide friction plate 31 slides in a sliding manner within the breaker axial slide slot 37 via the breaker slide 38.

The isolating switch operating device 12 comprises an isolating switch mounting shell 39 arranged on the inner wall of the mechanism operating chamber 7, an isolating switch driving shaft 6 extends into the isolating switch mounting shell 39, the tail end of the isolating switch driving shaft is provided with an isolating switch stop 40, the isolating switch driving shaft 6 is sleeved with a slidable isolating switch sliding friction plate 41 in the isolating switch mounting shell 39, an isolating switch transmission shaft 11 sequentially penetrates through the isolating switch mounting shell 39 and an isolating switch fixed friction plate 42, the isolating switch fixed friction plate 42 is arranged in the isolating switch mounting shell 39, the isolating switch sliding friction plate 41 and the isolating switch fixed friction plate 42 are coaxially arranged, a plurality of sliding holes are arranged at the positions, far away from the isolating switch fixed friction plate 42, of the isolating switch sliding friction plate 41, a sliding rod 43 is arranged in each sliding hole, one end of the sliding rod 43 is fixed on the inner wall of the isolating switch mounting shell 39, a first isolating switch spring 44 is arranged between the other end of the sliding rod 43 and the inner wall of the sliding hole, the isolating switch sliding friction plate 41 is in transmission friction contact with the isolating switch fixing friction plate 42 through the thrust of the first isolating switch spring 44, a plurality of isolating switch annular iron blocks 45 are arranged on the back surface, away from the isolating switch fixing friction plate 42, of the isolating switch sliding friction plate 41, an isolating switch annular iron block 46 corresponding to the isolating switch annular iron blocks 45 is arranged on the inner wall of the isolating switch mounting shell 39, the isolating switch annular iron block 46 is provided with a second power supply, and the controller is connected with the second power supply; the disconnecting switch drive shaft 6 in the disconnecting switch installation housing 39 is provided with a plurality of disconnecting switch axial sliding grooves 48, and the disconnecting switch sliding friction plate 41 is fixedly provided with a disconnecting switch sliding block 49 which is clamped in the disconnecting switch axial sliding grooves 48. The isolating switch operating device 12 can push the isolating switch sliding friction plate 41 to slide through the first isolating switch spring 44, so that the isolating switch sliding friction plate 41 is in transmission friction contact with the isolating switch fixed friction plate 42; or the second power supply is electrified to ensure that the isolating switch sliding friction plate 41 is disconnected with the isolating switch fixed friction plate 42 by overcoming the resistance of the first isolating switch spring 44 under the action of the attraction force of the isolating switch annular electromagnet block 46 and the isolating switch annular iron block 45; and the disconnector slide plate 41 slides in a sliding manner in the disconnector axial slide 48 via the disconnector slide 49.

The breaker damping fixing device 18 comprises a breaker movable friction disc 50 and a breaker fixed friction disc 47, and the breaker fixed friction disc 47 is fixed at one end of the breaker driving shaft 4; preferably, the surface of the circuit breaker fixed friction disc 47 away from the circuit breaker driving shaft 4 is a rough surface, which is convenient for generating a damping effect by friction with the circuit breaker movable friction disc 50 to prevent the circuit breaker driving shaft 4 from rotating; the breaker damping fixing device 18 comprises a breaker threaded sleeve 51 and a breaker rotating disc 52, the breaker threaded sleeve 51 is fixed on the switch judging chamber 8, and the breaker rotating disc 52 is arranged in the breaker threaded sleeve 51 and is in threaded fit connection with the breaker threaded sleeve 51; a breaker guide disc 53 is arranged between the breaker rotating disc 52 and the breaker movable friction disc 50, a plurality of breaker guide grooves 54 are axially arranged on the breaker guide disc 53, breaker guide rods 55 are arranged in the breaker guide grooves 54, the breaker guide rods 55 extend into the breaker rotating disc 52, a second breaker spring 56 is arranged between the breaker rotating disc 52 and the breaker movable friction disc 50, and breaker iron blocks 57 and breaker electromagnet blocks 58 are respectively arranged on the opposite surfaces of the breaker rotating disc 52 and the breaker movable friction disc 50; the breaker movable friction disc 50 is fixedly connected with a breaker guide disc 53; the breaker electromagnet block 58 is provided with a third power supply which is connected to the controller.

The breaker movable friction disk 50 is abutted against the breaker fixed friction disk 47 by the acting force of the second breaker spring 56, and friction is generated by the cooperation of the breaker movable friction disk 50 and the breaker fixed friction disk 47, so that a damping effect is generated.

By controlling the third power supply to be electrified, the breaker iron block 57 and the breaker electromagnet block 58 can generate magnetic force, and the breaker movable friction disc 50 drives the breaker guide disc 53 to slide along the breaker guide rod 55, so that the breaker movable friction disc 50 is separated from the breaker fixed friction disc 47, and the breaker driving shaft 4 is in a rotatable state.

Through knob circuit breaker rolling disc 52, because circuit breaker rolling disc 52 and the cooperation of circuit breaker thread bush 51 screw thread, adjust the axial displacement of circuit breaker rolling disc 52 in circuit breaker thread bush 51 to control the flexible of second circuit breaker spring 56, realize the frictional force size regulatory function to circuit breaker activity friction disc 50 and the fixed friction disc 47 of circuit breaker.

The isolating switch damping fixing device 24 comprises an isolating switch movable friction disc 60 and an isolating switch fixed friction disc 61, and the isolating switch fixed friction disc 61 is fixed at one end of the isolating switch driving shaft 6; preferably, the surface of the disconnecting switch fixing friction disc 61 away from the disconnecting switch driving shaft 6 is a rough surface, which is convenient for generating a damping effect through friction with the disconnecting switch movable friction disc 60 to prevent the disconnecting switch driving shaft 6 from rotating; the isolating switch damping fixing device 24 comprises an isolating switch inner thread sleeve 62 and an isolating switch rotating disc 63, the isolating switch inner thread sleeve 62 is fixed on the switch judgment chamber 8, and the isolating switch rotating disc 63 is arranged in the isolating switch inner thread sleeve 62 and is in threaded fit connection with the isolating switch inner thread sleeve 62; an isolating switch guide disc 64 is arranged between the isolating switch rotating disc 63 and the isolating switch movable friction disc 60, a plurality of isolating switch guide grooves 65 are axially arranged on the isolating switch guide disc 64, isolating switch guide rods 66 are arranged in the isolating switch guide grooves 65, the isolating switch guide rods 66 extend into the isolating switch rotating disc 63, a second isolating switch spring 67 is arranged between the isolating switch rotating disc 63 and the isolating switch movable friction disc 60, and isolating switch iron blocks 68 and isolating switch electromagnet blocks 69 are respectively arranged on the opposite surfaces of the isolating switch rotating disc 63 and the isolating switch movable friction disc 60; the isolating switch movable friction disc 60 is fixedly connected with an isolating switch guide disc 64; the isolator electromagnet block 69 is provided with a fourth power supply which is connected to the controller.

The disconnecting switch movable friction disc 60 abuts against the disconnecting switch fixed friction disc 61 by the acting force of the second disconnecting switch spring 67, and friction is generated by the matching of the disconnecting switch movable friction disc 60 and the disconnecting switch fixed friction disc 61, so that a damping effect is generated.

By controlling the fourth power supply to be electrified, the isolating switch iron block 68 and the isolating switch electromagnet block 69 can generate magnetic force, and the isolating switch movable friction disc 60 drives the isolating switch guide disc 64 to slide along the isolating switch guide groove 66, so that the isolating switch movable friction disc 60 is separated from the isolating switch fixed friction disc 61, and the isolating switch driving shaft 6 is in a rotatable state.

Through knob isolator rolling disc 63, because isolator rolling disc 63 and isolator internal thread cover 62 screw-thread fit, adjust the axial displacement of isolator rolling disc 63 in isolator internal thread cover 62 to control the flexible of second isolator spring 67, realize the frictional force size regulatory function to isolator activity friction disc 60 and the fixed friction disk 61 of isolator.

(1) the opening circuit breaker 3 is ready: the controller controls the first power supply to be powered off, so that the circuit breaker sliding friction plate 31 is abutted against the circuit breaker fixed friction plate 32 under the action of a first circuit breaker spring 33, and the circuit breaker transmission shaft 9 is in transmission contact with the circuit breaker driving shaft 4; the controller controls the second power supply to be electrified, so that the isolating switch sliding friction plate 41 is disconnected with the isolating switch fixed friction plate 42 by overcoming the resistance of the first isolating switch spring 44 under the action of the attraction force of the isolating switch annular electromagnet block 46 and the isolating switch annular iron block 45, and the isolating switch transmission shaft 11 is disconnected with the isolating switch driving shaft 6; meanwhile, the controller controls the fourth power supply to be powered off, so that the isolating switch movable friction disc 60 and the isolating switch fixed friction disc 61 generate friction damping under the action of the second isolating switch spring 67, and the isolating switch driving shaft 6 is prevented from rotating to drive the isolating switch 5 to act; the controller controls the third power supply to be electrified, so that the movable breaker friction disc 50 overcomes the resistance of the second breaker spring 56 and is separated from the fixed breaker friction disc 47 under the action of the suction force of the breaker electromagnet block 58 and the breaker iron block 57, the breaker driving shaft 4 is in a free state, and the breaker 3 can be rotationally driven to act;

(2) opening the circuit breaker 3: the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, the breaker transmission shaft 9 is in transmission contact with the breaker driving shaft 4, the breaker driving shaft 4 rotates to drive the breaker 3 to be disconnected, and meanwhile, the breaker angle sensor 22 records whether the breaker transmission shaft 9 rotates to disconnect information or not and sends the rotation disconnection information to the controller; after the circuit breaker 3 is disconnected, the controller controls the third power supply to be powered off, so that the movable friction disc 50 of the circuit breaker generates friction damping with the fixed friction disc 47 of the circuit breaker under the action of the second circuit breaker spring 56, and the circuit breaker driving shaft 4 is prevented from rotating to drive the circuit breaker 3 to act; the controller controls the second power supply to be powered off, so that the isolating switch sliding friction plate 41 is abutted against the isolating switch fixed friction plate 42 under the action of the first isolating switch spring 44, and the isolating switch transmission shaft 11 is in transmission contact with the isolating switch driving shaft 6;

(3) disconnecting the disconnecting switch 5: the controller identifies the rotation breaking information sent by the breaker angle sensor 22 and judges whether the breaker 3 is broken or not, if so, the controller controls the first power supply to be electrified, so that the breaker sliding friction plate 31 overcomes the resistance of the first breaker spring 33 and is broken with the breaker fixed friction plate 32 under the suction action of the breaker annular electromagnet block 35 and the breaker annular iron block 34, and the breaker transmission shaft 9 is further broken with the breaker driving shaft 4; meanwhile, the controller controls the fourth power supply to be electrified, so that the isolating switch movable friction disc 60 overcomes the resistance of the second isolating switch spring 67 and is separated from the isolating switch fixed friction disc 61 under the action of the attraction force of the isolating switch electromagnet block 69 and the isolating switch iron block 68, the isolating switch driving shaft 6 is in a free state, and the isolating switch 5 can be driven to act in a rotating mode; the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the disconnecting switch transmission shaft 6 rotates to drive the disconnecting switch 5 to be disconnected as the disconnecting switch transmission shaft 11 is in transmission contact with the disconnecting switch transmission shaft 6; after the isolating switch 5 is disconnected, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(4) after the overhaul is finished, closing the isolating switch 5: the controller controls the fourth power supply to be electrified, so that the isolating switch movable friction disc 60 overcomes the resistance of the second isolating switch spring 67 and is separated from the isolating switch fixed friction disc 61 under the action of the attraction force of the isolating switch electromagnet block 69 and the isolating switch iron block 68, the isolating switch driving shaft 6 is in a free state, and the isolating switch 5 can be driven to act in a rotating mode; the controller controls the first power supply to be electrified, so that the circuit breaker sliding friction plate 31 overcomes the resistance of the first circuit breaker spring 33 and is disconnected with the circuit breaker fixing friction plate 32 under the action of the suction force of the circuit breaker annular electromagnet block 35 and the circuit breaker annular iron block 34, the circuit breaker transmission shaft 9 is further disconnected with the circuit breaker driving shaft 4, the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the circuit breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the disconnecting switch driving shaft 6 rotates to drive the disconnecting switch 5 to be closed as the disconnecting switch transmission shaft 11 is in transmission contact with the disconnecting switch driving shaft 6; meanwhile, the disconnecting switch angle sensor 28 records whether the disconnecting switch transmission shaft 11 rotates and closes information, and sends the rotating and closing information to the controller; after the isolating switch 5 is closed, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(5) the controller identifies the rotation closing information sent by the isolating switch angle sensor 28 and judges whether the isolating switch 5 is disconnected or not, if so, the controller controls the second power supply to be electrified, so that the isolating switch sliding friction plate 41 overcomes the resistance of the first isolating switch spring 44 and is disconnected from the isolating switch fixed friction plate 42 under the action of the suction force of the isolating switch annular electromagnet block 46 and the isolating switch annular iron block 45, and the isolating switch transmission shaft 11 is disconnected from the isolating switch driving shaft 6; meanwhile, the controller controls the third power supply to be electrified, so that the movable breaker friction disc 50 overcomes the resistance of the second breaker spring 56 and is separated from the fixed breaker friction disc 47 under the action of the suction force of the breaker electromagnet block 58 and the breaker iron block 57, the breaker driving shaft 4 is in a free state, and the breaker 3 can be driven to act in a rotating mode; the controller drives the energy storage device 14 to start working, the energy storage device 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the breaker transmission shaft 9 and the disconnecting switch transmission shaft 11 to rotate, and the breaker transmission shaft 9 is in transmission contact with the breaker driving shaft 4, so that the breaker driving shaft 4 rotates to drive the breaker 3 to close; after the circuit breaker 3 is closed, the controller controls the second power supply to be powered off and the third power supply to be powered off.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A safe-use inflatable switch cabinet comprises a cabinet body (1), wherein a gas tank (2), a mechanism operating chamber (7) and a switch judging chamber (8) are arranged in the cabinet body (1), a controller is arranged on the cabinet body (1), a circuit breaker (3) and a disconnecting switch (5) are arranged in the gas tank (2), a circuit breaker driving shaft (4) used for driving the circuit breaker (3) is arranged in the circuit breaker (3), and a disconnecting switch driving shaft (6) used for driving the disconnecting switch (5) is arranged in the disconnecting switch (5); the method is characterized in that:

the mechanism operation chamber (7) and the switch judgment chamber (8) are positioned at two sides of the air box (2); two ends of the circuit breaker driving shaft (4) respectively penetrate through the air box (2) and extend into the mechanism operation chamber (7) and the switch judgment chamber (8), and two ends of the isolating switch driving shaft (6) respectively penetrate through the air box (2) and extend into the mechanism operation chamber (7) and the switch judgment chamber (8);

a circuit breaker operating device (10), a disconnecting switch operating device (12), a circuit breaker transmission shaft (9) and a disconnecting switch transmission shaft (11) are arranged in the mechanism operating chamber (7), the circuit breaker transmission shaft (9) and the circuit breaker driving shaft (4) can be disconnected or in transmission connection through the circuit breaker operating device (10), and the disconnecting switch transmission shaft (11) and the disconnecting switch driving shaft (6) can be disconnected or in transmission connection through the disconnecting switch operating device (12); the mechanism operating room (7) is further provided with a transmission shaft (13), the transmission shaft (13) extends out of the mechanism operating room (7) and is connected with an energy storage device (14), the transmission shaft (13) is provided with a driving gear (15), and the breaker transmission shaft (9) and the disconnecting switch transmission shaft (11) are respectively provided with a driven gear (16) meshed with the driving gear (15);

the breaker driving shaft (4) is provided with a breaker driving wheel (17) in the switch judging chamber (8), the breaker driving shaft (4) extends out of the switch judging chamber (8) and is connected with a breaker damping fixing device (18) used for controlling whether the breaker driving shaft is in a rotating state or not, a breaker driven shaft (19) is arranged in the switch judging chamber (8), the breaker driven shaft (19) is provided with a breaker driven wheel (20), the breaker driven wheel (20) is connected with the breaker driving wheel (17) through a breaker transmission part (21), and the breaker driven shaft (19) penetrates through the switch judging chamber (8) and is connected with a breaker angle sensor (22);

the isolating switch driving shaft (6) is internally provided with an isolating switch driving wheel (23) in the switch judging chamber (8), the isolating switch driving shaft (6) extends out of the switch judging chamber (8) and is connected with an isolating switch damping fixing device (24) used for controlling whether the isolating switch driving shaft is in a rotating state or not, an isolating switch driven shaft (25) is arranged in the switch judging chamber (8), an isolating switch driven wheel (26) is arranged on the isolating switch driven shaft (25), the isolating switch driven wheel (26) is connected with the isolating switch driving wheel (23) through an isolating switch transmission piece (27), and the isolating switch driven shaft (25) penetrates through the switch judging chamber (8) and is connected with an isolating switch angle sensor (28);

the circuit breaker angle sensor (22), isolator angle sensor (28), circuit breaker damping fixing device (18) and isolator damping fixing device (24) respectively with the controller is connected, simultaneously, the controller respectively with circuit breaker operating means (10) with isolator operating means (12) are connected.

2. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the switch cabinet the cabinet body (1) is provided with outward and is used for judging whether disconnected circuit breaker pilot lamp of circuit breaker (3), the cabinet body (1) still is provided with outward and is used for judging whether disconnected isolator pilot lamp of isolator (5), the controller respectively with circuit breaker pilot lamp with the isolator pilot lamp is connected.

3. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the breaker driving wheel (17), the breaker driven wheel (20), the disconnecting switch driving wheel (23) and the disconnecting switch driven wheel (26) are chain wheels, and the breaker transmission part (21) and the disconnecting switch transmission part (27) are chains; or

Breaker action wheel (17) the breaker from driving wheel (20) isolator action wheel (23) with isolator follows driving wheel (26) and is the belt pulley, circuit breaker driving medium (21) with isolator driving medium (27) are the belt.

4. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the circuit breaker operating device (10) comprises a circuit breaker installation shell (29), the circuit breaker installation shell (29) is installed on the inner wall of the mechanism operating room (7), the circuit breaker driving shaft (4) stretches into the circuit breaker installation shell (29), the tail end of the circuit breaker driving shaft (4) is provided with a circuit breaker stop block (30), the circuit breaker driving shaft (4) is sleeved with a slidable circuit breaker sliding friction plate (31), the circuit breaker driving shaft (9) sequentially penetrates through the circuit breaker installation shell (29) and a circuit breaker fixed friction plate (32), the circuit breaker fixed friction plate (32) is arranged in the circuit breaker installation shell (29), the circuit breaker sliding friction plate (31) and the circuit breaker fixed friction plate (32) are coaxially arranged, and the circuit breaker driving shaft (4) is sleeved with a first circuit breaker spring (33), the one end of first circuit breaker spring (33) supports on the inner wall of circuit breaker installation casing (29), the other end of first circuit breaker spring (33) supports on circuit breaker slip friction disc (31), with pass through the thrust of first circuit breaker spring (33) makes circuit breaker slip friction disc (31) with circuit breaker fixed friction disc (32) transmission friction contact, circuit breaker slip friction disc (31) are kept away from the back of circuit breaker fixed friction disc (32) is provided with circuit breaker annular iron plate (34), be provided with on the inner wall of circuit breaker installation casing (29) with circuit breaker annular iron plate (35) that circuit breaker annular iron plate (34) correspond, circuit breaker annular iron plate (35) dispose first power, the controller is connected with first power.

5. A safety-use inflatable switchgear, according to claim 4, characterized in that: the circuit breaker is characterized in that a plurality of circuit breaker axial sliding grooves (37) are formed in the circuit breaker installation shell (29) of the circuit breaker driving shaft (4), and circuit breaker sliding friction plates (31) are fixedly arranged and clamped into circuit breaker sliding blocks (38) of the circuit breaker axial sliding grooves (37).

6. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the isolating switch operating device (12) comprises an isolating switch mounting shell (39), the isolating switch mounting shell (39) is mounted on the inner wall of a mechanism operating room (7), an isolating switch driving shaft (6) extends into the isolating switch mounting shell (39), an isolating switch stop block (40) is arranged at the tail end of the isolating switch driving shaft (6), a slidable isolating switch sliding friction plate (41) is sleeved in the isolating switch mounting shell (39), an isolating switch transmission shaft (11) sequentially penetrates through the isolating switch mounting shell (39) and an isolating switch fixing friction plate (42), the isolating switch fixing friction plate is arranged in the isolating switch mounting shell (39), the isolating switch sliding friction plate (41) and the isolating switch fixing friction plate (42) are coaxially arranged, the isolating switch sliding friction plate (41) is far away from the isolating switch fixed friction plate (42) and is provided with a plurality of sliding holes, a sliding rod (43) is arranged in each sliding hole, one end of the sliding rod (43) is fixed on the inner wall of the isolating switch mounting shell (39), a first isolating switch spring (44) is arranged between the other end of the sliding rod (43) and the inner wall of each sliding hole, so that the isolating switch sliding friction plate (41) and the isolating switch fixed friction plate (42) are in transmission friction contact through the thrust of the first isolating switch spring (44), a plurality of isolating switch annular iron blocks (45) are arranged on the back surface of the isolating switch sliding friction plate (41) far away from the isolating switch fixed friction plate (42), isolating switch annular electromagnetic iron blocks (46) corresponding to the isolating switch annular iron blocks (45) are arranged on the inner wall of the isolating switch mounting shell (39), the annular electromagnet block (46) of the isolating switch is provided with a second power supply, and the controller is connected with the second power supply.

7. A safety-use inflatable switchgear, according to claim 6, characterized in that: the isolating switch is characterized in that a plurality of isolating switch axial sliding grooves (48) are formed in the isolating switch driving shaft (6) in the isolating switch mounting shell (39), and isolating switch sliding blocks (49) clamped into the isolating switch axial sliding grooves (48) are fixedly arranged on the isolating switch sliding friction plates (41).

8. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the circuit breaker damping fixing device (18) comprises a circuit breaker movable friction disc (50) and a circuit breaker fixing friction disc (47), and the circuit breaker fixing friction disc (47) is fixed at one end of the circuit breaker driving shaft (4); the circuit breaker damping fixing device (18) comprises a circuit breaker threaded sleeve (51) and a circuit breaker rotating disc (52), the circuit breaker threaded sleeve (51) is fixed on the switch judging chamber (8), and the circuit breaker rotating disc (52) is arranged in the circuit breaker threaded sleeve (51) and is in threaded fit connection with the circuit breaker threaded sleeve (51); a breaker guide disc (53) is arranged between the breaker rotating disc (52) and the breaker movable friction disc (50), a plurality of breaker guide grooves (54) are axially arranged on the breaker guide disc (53), breaker guide rods (55) are arranged in the breaker guide grooves (54), the breaker guide rods (55) extend into the breaker rotating disc (52), a second breaker spring (56) is arranged between the breaker rotating disc (52) and the breaker movable friction disc (50), and breaker iron blocks (57) and breaker electromagnet blocks (58) are respectively arranged on opposite surfaces of the breaker rotating disc (52) and the breaker movable friction disc (50); the breaker movable friction disc (50) is fixedly connected with the breaker guide disc (53); the breaker electromagnet block (58) is provided with a third power supply, and the third power supply is connected with the controller.

9. A safety-use inflatable switchgear, as claimed in claim 1, characterized in that: the isolating switch damping fixing device (24) comprises an isolating switch movable friction disc (60) and an isolating switch fixed friction disc (61), and the isolating switch fixed friction disc (61) is fixed at one end of the isolating switch driving shaft (6); the isolating switch damping fixing device (24) comprises an isolating switch inner thread sleeve (62) and an isolating switch rotating disc (63), the isolating switch inner thread sleeve (62) is fixed on the switch judgment chamber (8), and the isolating switch rotating disc (63) is arranged in the isolating switch inner thread sleeve (62) and is in threaded fit connection with the isolating switch inner thread sleeve (62); an isolating switch guide disc (64) is arranged between the isolating switch rotating disc (63) and the isolating switch movable friction disc (60), a plurality of isolating switch guide grooves (65) are axially arranged on the isolating switch guide disc (64), an isolating switch guide rod (66) is arranged in each isolating switch guide groove (65), the isolating switch guide rod (66) extends into the isolating switch rotating disc (63), a second isolating switch spring (67) is arranged between the isolating switch rotating disc (63) and the isolating switch movable friction disc (60), and an isolating switch iron block (68) and an isolating switch electromagnet block (69) are respectively arranged on the opposite surfaces of the isolating switch rotating disc (63) and the isolating switch movable friction disc (60); the isolating switch movable friction disc (60) is fixedly connected with the isolating switch guide disc (64); the isolating switch electromagnet block (69) is provided with a fourth power supply, and the fourth power supply is connected with the controller.

10. A method of operating a safety-operated gas-filled switchgear cabinet according to any of claims 1 to 9, characterized in that: the method comprises the following steps:

(1) preparation for opening the circuit breaker (3): the controller controls the first power supply to be powered off, so that the sliding friction plate (31) of the circuit breaker is abutted against the fixed friction plate (32) of the circuit breaker under the action of a first circuit breaker spring (33), and the transmission shaft (9) of the circuit breaker is in transmission contact with the driving shaft (4) of the circuit breaker; the controller controls the second power supply to be electrified, so that the isolating switch sliding friction plate (41) is disconnected with the isolating switch fixed friction plate (42) by overcoming the resistance of the first isolating switch spring (44) under the suction action of the isolating switch annular electromagnet block (46) and the isolating switch annular iron block (45), and the isolating switch transmission shaft (11) is disconnected with the isolating switch driving shaft (6); meanwhile, the controller controls the fourth power supply to be powered off, so that the isolating switch movable friction disc (60) and the isolating switch fixed friction disc (61) generate friction damping under the action of a second isolating switch spring (67), and the isolating switch driving shaft (6) is prevented from rotating to drive the isolating switch (5) to act; the controller controls the third power supply to be electrified, so that the movable friction disc (50) of the circuit breaker overcomes the resistance of the second circuit breaker spring (56) to be separated from the fixed friction disc (47) of the circuit breaker under the action of the suction force of the electromagnetic iron block (58) of the circuit breaker and the iron block (57) of the circuit breaker, the driving shaft (4) of the circuit breaker is in a free state, and the circuit breaker (3) can be rotationally driven to act;

(2) open circuit breaker (3): the controller drives the energy storage device (14) to start working, the energy storage device (14) drives the transmission shaft (13) to rotate, the transmission shaft (13) drives the breaker transmission shaft (9) and the disconnecting switch transmission shaft (11) to rotate, the breaker transmission shaft (9) is in transmission contact with the breaker driving shaft (4), the breaker driving shaft (4) rotates to drive the breaker (3) to be disconnected, and meanwhile, the breaker angle sensor (22) records whether the breaker transmission shaft (9) rotates to disconnect information or not and sends the rotation disconnection information to the controller; after the circuit breaker (3) is disconnected, the controller controls the third power supply to be powered off, so that the movable friction disc (50) of the circuit breaker generates friction damping with the fixed friction disc (47) of the circuit breaker under the action of the second circuit breaker spring (56), and the circuit breaker driving shaft (4) is prevented from rotating to drive the circuit breaker (3) to act; the controller controls the second power supply to be powered off, so that the sliding friction plate (41) of the isolating switch is propped against the fixed friction plate (42) of the isolating switch under the action of the first isolating switch spring (44), and the transmission shaft (11) of the isolating switch is in transmission contact with the driving shaft (6) of the isolating switch;

(3) disconnect disconnector (5): the controller identifies the rotation disconnection information sent by the breaker angle sensor (22) and judges whether the breaker (3) is disconnected or not, if the breaker (3) is disconnected, the controller controls a first power supply to be electrified, so that the breaker sliding friction plate (31) overcomes the resistance of a first breaker spring (33) to be disconnected with a breaker fixed friction plate (32) under the action of the suction force of a breaker annular electromagnet block (35) and a breaker annular iron block (34), and a breaker transmission shaft (9) is disconnected with a breaker driving shaft (4); meanwhile, the controller controls a fourth power supply to be electrified, so that the isolating switch movable friction disc (60) overcomes the resistance of a second isolating switch spring (67) to be separated from the isolating switch fixed friction disc (61) under the action of the attraction force of an isolating switch electromagnet block (69) and an isolating switch iron block (68), the isolating switch driving shaft (6) is in a free state, and the isolating switch (5) can be driven to act in a rotating mode; the controller drives the energy storage device (14) to start working, the energy storage device (14) drives the transmission shaft (13) to rotate, the transmission shaft (13) drives the breaker transmission shaft (9) and the disconnecting switch transmission shaft (11) to rotate, and the disconnecting switch transmission shaft (6) rotates to drive the disconnecting switch (5) to be disconnected as the disconnecting switch transmission shaft (11) is in transmission contact with the disconnecting switch transmission shaft (6); after the isolating switch (5) is disconnected, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(4) after the overhaul is finished, closing the isolating switch (5): the controller controls the fourth power supply to be electrified, so that the isolating switch movable friction disc (60) overcomes the resistance of a second isolating switch spring (67) to be separated from the isolating switch fixed friction disc (61) under the action of the attraction force of an isolating switch electromagnet block (69) and an isolating switch iron block (68), the isolating switch driving shaft (6) is in a free state, and the isolating switch driving shaft can rotate to drive the isolating switch (5) to act; the controller controls a first power supply to be electrified, so that a circuit breaker sliding friction plate (31) overcomes the resistance of a first circuit breaker spring (33) to be disconnected with a circuit breaker fixed friction plate (32) under the action of the suction force of a circuit breaker annular electromagnet block (35) and a circuit breaker annular iron block (34), a circuit breaker transmission shaft (9) is disconnected with a circuit breaker driving shaft (4), the controller drives an energy storage device (14) to start working, the energy storage device (14) drives a transmission shaft (13) to rotate, the transmission shaft (13) drives the circuit breaker transmission shaft (9) and an isolating switch transmission shaft (11) to rotate, and the isolating switch driving shaft (6) rotates to drive an isolating switch (5) to be closed as the isolating switch transmission shaft (11) is in transmission contact with the isolating switch driving shaft (6); meanwhile, an isolating switch angle sensor (28) records whether the isolating switch transmission shaft (11) rotates to close information or not, and sends the rotating to close information to the controller; after the isolating switch (5) is closed, the controller controls the fourth power supply to be powered off and the first power supply to be powered off;

(5) closing the circuit breaker (3): the controller identifies the rotation closing information sent by the isolating switch angle sensor (28), judges whether the isolating switch (5) is disconnected or not, and controls a second power supply to be electrified if the isolating switch (5) is disconnected, so that the isolating switch sliding friction plate (41) overcomes the resistance of a first isolating switch spring (44) to be disconnected with the isolating switch fixed friction plate (42) under the suction action of an isolating switch annular electromagnet block (46) and an isolating switch annular iron block (45), and the isolating switch transmission shaft (11) is disconnected with the isolating switch driving shaft (6); meanwhile, the controller controls a third power supply to be electrified, so that the movable friction disc (50) of the circuit breaker overcomes the resistance of a second circuit breaker spring (56) to be separated from the fixed friction disc (47) of the circuit breaker under the action of the suction force of an electromagnetic iron block (58) of the circuit breaker and an iron block (57) of the circuit breaker, a driving shaft (4) of the circuit breaker is in a free state, and the circuit breaker (3) can be driven to act in a rotating mode; the controller drives the energy storage device (14) to start working, the energy storage device (14) drives the transmission shaft (13) to rotate, the transmission shaft (13) drives the breaker transmission shaft (9) and the disconnecting switch transmission shaft (11) to rotate, and the breaker transmission shaft (9) is in transmission contact with the breaker driving shaft (4), so that the breaker driving shaft (4) rotates to drive the breaker (3) to be closed; and after the breaker (3) is closed, the controller controls the second power supply to be powered off and the third power supply to be powered off.