CN217720302U

CN217720302U - Switch cabinet

Info

Publication number: CN217720302U
Application number: CN202121552960.0U
Authority: CN
Inventors: 林存朋; 陈淑浩; 张瑞青
Original assignee: Hengsmai Electric Power Technology Zhejiang Co ltd; Huntsman Hangzhou Power Technology Co ltd
Current assignee: Hengsmai Electric Power Technology Zhejiang Co ltd; Huntsman Hangzhou Power Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-11-01
Anticipated expiration: 2031-07-08

Abstract

The utility model relates to a switch cabinet, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body is equipped with the circuit breaker, isolator, the cabinet door, a mounting bracket, the operating axis, the handle axle, the mounting bracket is equipped with first locking lever, the second locking lever, the third locking lever, elastic component one, elastic component two, elastic component three, the operating axis is equipped with first locking piece, the second locking piece, the third locking piece, the handle axle is equipped with the fourth locking piece, fifth locking piece, first locking piece is equipped with the locking part of contradicting in first locking lever, fifth locking piece is equipped with first slot, isolator separating brake, the second locking piece impresses second locking lever first slot, isolator combined floodgate, elastic component two make the second locking lever break away from first slot, the third locking piece is equipped with the second slot, breaker combined floodgate, the fourth locking piece impresses the third locking lever second slot, breaker separating brake, elastic component three makes the third locking lever break away from the second slot, the cabinet body is equipped with the drive assembly that first locking lever breaks away from locking part when closing the cabinet door. By adopting the technical scheme, the life safety of maintenance personnel and users can be ensured.

Description

Switch cabinet

Technical Field

The utility model relates to a cubical switchboard field especially indicates a cubical switchboard.

Background

The switch cabinet is mainly used for opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of an electric power system.

Current cubical switchboard generally contains the cabinet body, and the internal circuit breaker and the power input port of being equipped with of cabinet, power input port are connected with the input electricity of circuit breaker, and power input port includes commercial power port and generator input port, still is equipped with the cabinet door of locking the circuit breaker in the cabinet body on the cabinet body.

By adopting the technical scheme, the following problems exist: when maintaining current cubical switchboard, need open the cabinet door, the circuit breaker still can close a floodgate or separating brake after the cabinet door is opened, and this brings the potential safety hazard for maintainer, and the plug of connecting on the input port of power still can break away from power input port for this cubical switchboard in use has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: in order to overcome the defect of the prior art, the utility model provides a switch cabinet, it is unable operation of back circuit breaker is opened at the cabinet door, guarantees maintainer's life safety.

The technical scheme of the utility model: a switch cabinet comprises a cabinet body, wherein a circuit breaker is arranged in the cabinet body, a power input port is arranged on the cabinet body, a cabinet door for locking the circuit breaker in the cabinet body is further arranged on the cabinet body, a disconnecting switch is arranged in the cabinet body, the power input port, the disconnecting switch and the circuit breaker are sequentially connected in series, an operating shaft for controlling the disconnecting switch to be switched on or switched off is rotatably arranged in the cabinet body, a handle shaft for controlling the circuit breaker to be switched on or switched off is rotatably arranged in the cabinet body, the operating shaft is provided with a first locking block, a second locking block and a third locking block which rotate synchronously, the handle shaft is provided with a fourth locking block and a fifth locking block which rotate synchronously, an installation frame is arranged in the cabinet body, a first locking rod, a second locking rod and a third locking rod are arranged on the installation frame in a sliding manner, the first locking rod, the second locking rod and the third locking rod are all arranged between the operating shaft and the handle shaft, and the first locking block is provided with a locking part, the mounting frame is provided with a first elastic piece, when the isolating switch and the circuit breaker are both in opening state, the first elastic piece can drive the first lock rod to move towards the first lock block, the lock part can lock the first lock rod, the operation shaft is limited to rotate the closing isolating switch, the cabinet body is internally provided with a driving assembly, when the cabinet door is closed, the cabinet door can drive the driving assembly to drive the first lock rod to be separated from the lock part, so that the operation shaft can rotate the closing isolating switch, the fifth lock block is provided with a first slot, the mounting frame is provided with a second elastic piece, when the isolating switch and the circuit breaker are both in opening state, the second lock rod is pressed into the first slot by the second lock block to limit the handle shaft to rotate the closing circuit breaker, when the isolating switch is in closing state and the circuit breaker is in opening state, the second elastic piece can drive the second lock rod to be separated from the first slot, the handle shaft can rotate the closing circuit breaker, the third lock block is provided with a second slot, the third elastic piece is arranged on the mounting frame, when the isolating switch and the circuit breaker are switched on, the third lock rod is pressed into the second slot by the fourth locking piece, the operation shaft is limited to rotate the opening isolating switch, when the circuit breaker is in opening and the isolating switch is in switching on, the third elastic piece can drive the third lock rod to be separated from the second slot, and the opening isolating switch can be rotated by the operation shaft.

By adopting the technical scheme, when the switch cabinet is used, the isolating switch needs to be switched on firstly, then the breaker is switched on, therefore, the switch cabinet needs to be firstly switched on, the cabinet door drives the driving assembly to separate the first lock rod from the locking part of the first lock block so as to unlock the operating shaft, the operating shaft rotates to switch on the isolating switch, meanwhile, the second lock block releases the second lock rod, the second lock rod is driven by the elastic piece II to be separated from the first slot of the fifth lock block, the second lock rod is separated from the first slot of the fifth lock block so as to unlock the handle shaft, the handle shaft rotates to switch on the breaker, meanwhile, the fourth lock block rotates, the third lock rod is pressed into the second slot on the third lock block by the fourth lock block so as to limit the rotation of the operating shaft and prevent misoperation of an operator and damage to the switch cabinet, and the potential safety hazard that appears in the use, when needing to separate brake, rotate handle axle separating brake circuit breaker earlier, third drive third locking lever of elastic component breaks away from the second slot, unblock operating axis, the operating axis is rotatable, operating axis rotates separating brake isolator, the second locking piece is impressed the second locking lever in the first slot, accomplish the separating brake, because the second locking piece impresses the second locking lever in the first slot, the handle axle can't rotate, be used for preventing operating personnel maloperation, realize cubical switchboard safe operation and use, and when opening the cabinet door and maintaining or overhauing, the elastic component makes first locking lever remove the locking part on the first locking piece, locking part pins first locking lever, the restriction operating axis rotates, be used for preventing operating personnel maloperation, the potential safety hazard appears.

The utility model discloses a further setting again: the second lock rod is provided with a lock hook, one side of the cabinet door facing the cabinet body is provided with a lock catch, when the isolating switch is switched on, the second lock rod moves towards the second lock block through the second elastic part, and the lock hook hooks the lock catch.

Adopt above-mentioned further setting again, rotate the operating axis and make isolator combined floodgate, elastic component two makes the second locking lever remove towards the second locking piece, and the second locking lever drives the locking lever and removes, and the hasp is colluded to the latch hook and establishes the hasp, realizes the locking to the cabinet door, further realizes that the cubical switchboard is at the during operation, and the cabinet door can't be opened for eliminate the potential safety hazard.

The utility model discloses a further setting again: the driving assembly comprises a sliding plate arranged on the mounting frame in a sliding mode, a synchronously sliding bump is arranged on the first lock rod, a pressing block is arranged on the sliding plate, when the sliding plate is arranged on the cabinet door in a pressing mode, the sliding plate slides, the pressing block is arranged on the bump in a pressing mode, the first lock rod is separated from the locking portion, and a reset elastic piece enabling the sliding plate to reset is arranged on the mounting frame.

Adopt the aforesaid to further set up again, when the cabinet door closes, the cabinet door promotes the slide and removes, support on the briquetting was located the lug, the lug drove first locking lever and keeps away from first locking piece, first locking lever breaks away from first locking part, operating shaft rotation closing isolating switch this moment, open the cabinet door after isolating switch separating brake, the elastic component that resets makes the slide reset, support briquetting and lug separation, first locking lever removes towards first locking piece direction under the drive of elastic component one, first locking lever contradicts in first locking part, be used for restricting the operating shaft rotation, realize after the cabinet door is opened, isolator, the unable combined floodgate of circuit breaker all, be used for eliminating the potential safety hazard.

The utility model discloses a still further set up: the utility model discloses a power supply cabinet, including the cabinet body, the cabinet body is equipped with the jam plate that can be the elevating movement at the cabinet body, the handle axle can be the elevating movement on the cabinet body through link gear drive jam plate, is equipped with a plurality of locked groove on the jam plate, and when the handle axle rotated to make the circuit breaker combined floodgate, the locked groove locked and inserted the plug of locating power input port department.

By adopting the further arrangement, when the handle shaft rotates to close the breaker, the locking groove locks the plug inserted at the power input port, so that the potential safety hazard caused by the fact that the plug is separated from the power input port when the switch cabinet is used is avoided.

The utility model discloses a still further set up: the cabinet body is last to be equipped with a set of balancing unit who installs respectively in jam plate both ends department, balancing unit contains first connecting rod, second connecting rod and torsional spring, be equipped with the articulated shaft on the cabinet body, the one end of first connecting rod articulates in the articulated shaft, and the other end articulates in the one end of second connecting rod, and the other end of second connecting rod articulates on the jam plate, and on the articulated shaft was located to the torsional spring cover, the one end of torsional spring was connected in the cabinet body, and the other end is connected in first connecting rod.

By adopting the above further arrangement, the locking plate is prevented from being clamped on the cabinet body when the locking plate does lifting motion on the cabinet body.

The utility model discloses a still further set up: the linkage mechanism comprises a first hinged rod which is arranged on the handle shaft and synchronously rotates with the handle shaft, the first hinged rod is hinged with a second hinged rod, and the second hinged rod is hinged on the locking plate.

By adopting the still further arrangement, when the handle shaft rotates the switch-on circuit breaker, the handle shaft drives the first hinge rod to swing, the first hinge rod drives the second hinge rod to swing, the second hinge rod drives the locking plate to do lifting motion on the cabinet body, so that the plug can fall into the locking groove, the locking plate can lock the plug, the plug is limited to be separated from the power input port, when the handle shaft rotates the switch-off circuit breaker, the handle shaft drives the first hinge rod to swing, the first hinge rod drives the second hinge rod to swing, and the second hinge rod drives the locking plate to do lifting motion on the cabinet body, so that the plug can be separated from the locking groove, the locking plate can be separated from the plug, and the plug can be separated from the power input port.

The utility model discloses a still further set up: the cabinet body is provided with a guide rod, the lock plate is provided with a guide hole, and the guide rod penetrates out of the guide hole.

By adopting the above arrangement, the lock plate can be guided to slide when the lock plate is lifted on the cabinet body, so that the lock plate can be further prevented from being clamped on the cabinet body.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is a state diagram of the circuit breaker and the disconnecting switch according to the embodiment of the present invention;

fig. 5 is a closing state diagram of the circuit breaker and the disconnecting switch according to the embodiment of the present invention;

fig. 6 is a state diagram of the circuit breaker and the disconnecting switch according to the embodiment of the present invention;

fig. 7 is the closing state diagram of the circuit breaker and the disconnecting switch according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the descriptions in the present invention as referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by those skilled in the art as a basis, and when the technical solutions are combined and contradicted with each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention.

As shown in fig. 1-7, the switch cabinet of the present invention includes a cabinet body 10, a circuit breaker 20 is disposed in the cabinet body 10, a power input port 40 is disposed on the cabinet body 10, a cabinet door 30 for locking the circuit breaker 20 in the cabinet body 10 is further disposed on the cabinet body 10, an isolating switch 50 is disposed in the cabinet body 10, the power input port 40, the isolating switch 50 and the circuit breaker 20 are sequentially connected in series, an operating shaft 60 for controlling the isolating switch 50 to be switched on or switched off is rotatably disposed in the cabinet body 10, a handle shaft 70 for controlling the circuit breaker 20 to be switched on or switched off is rotatably disposed in the cabinet body 10, the operating shaft 60 is provided with a first lock block 120, a second lock block 130 and a third lock block 140 which rotate synchronously, the handle shaft 70 is provided with a fourth lock block 150 and a fifth lock block 160 which rotate synchronously, a lock frame 80 is disposed in the cabinet body 10, a first lock rod 90, a second lock rod 100 and a third lock rod 110 are slidably disposed on the lock frame 80, first locking lever 90, second locking lever 100, third locking lever 110 all locate between operating shaft 60 and handle axle 70, first locking piece 120 is equipped with locking part 121, be equipped with elastic component 170 on the mounting bracket 80, when isolator 50, circuit breaker 20 all are in the separating brake, elastic component 170 can drive first locking lever 90 and remove towards first locking piece 120, locking part 121 can lock first locking lever 90, restriction operating shaft 60 rotates closing isolator 50, be equipped with drive assembly 220 in the cabinet body 10, when closing cabinet door 30, cabinet door 30 can drive assembly 220 and drive first locking lever 90 and break away from locking part 121, realize that operating shaft 60 rotates closing isolator 50, fifth locking piece 160 is equipped with first slot 161, be equipped with elastic component two 180 on the mounting bracket 80, when isolator 50, circuit breaker 20 all are in the separating brake, second locking piece 130 impresses second locking lever 100 in first slot 161, restriction handle shaft 70 rotates combined floodgate circuit breaker 20, is located the combined floodgate at isolator 50, when breaker 20 is in the separating brake, and elastic component two 180 can drive second locking lever 100 and break away from first slot 161, the rotatable combined floodgate circuit breaker 20 of handle shaft 70, third locking piece 140 is equipped with second slot 141, be equipped with elastic component three 190 on the mounting bracket 80, when isolator 50, breaker 20 all closed, fourth locking piece 150 impresses third locking lever 110 in second slot 141, restriction operating axis 60 rotates separating brake isolator 50, is in the separating brake at breaker 20, and isolator 50 is located when closing, and elastic component three 190 can drive third locking lever 110 and break away from second slot 141, the rotatable separating brake isolator 50 of operating axis 60.

In this embodiment, the first elastic element 170, the second elastic element 180, and the third elastic element 190 may be springs.

When the switch cabinet is used, the isolating switch 50 needs to be closed first, and then the breaker 20 needs to be closed, therefore, the switch cabinet needs to close the cabinet door 30 first, the cabinet door 30 drives the driving assembly 220 to separate the first lock rod 90 from the locking part 121 of the first lock block 120 to unlock the operating shaft 60, the operating shaft 60 rotates to close the isolating switch 50, at the same time, the second lock block 130 releases the second lock rod 100, the second lock rod 100 is driven by the second elastic member 180 to disengage from the first slot 161 of the fifth lock block 160, the second lock rod 100 disengages from the first slot 161 of the fifth lock block 160 to unlock the handle shaft 70, the handle shaft 70 rotates to close the breaker 20, meanwhile, the fourth lock block 150 rotates, the fourth lock block 150 presses the third lock rod 110 into the second slot 141 on the third lock block 140 to limit the rotation of the operating shaft 60, thereby preventing the misoperation of the operator and causing the damage of the switch cabinet, when the switch is required to be switched off, the handle shaft 70 is firstly rotated to switch off the breaker 20, the third elastic piece 190 drives the third lock rod 110 to be separated from the second slot 141, the operation shaft 60 is unlocked, the operation shaft 60 can be rotated, the operation shaft 60 rotates the switch-off isolating switch 50, the second lock block 130 presses the second lock rod 100 into the first slot 161 to complete the switch-off, because the second lock block 130 presses the second lock rod 100 into the first slot 161, the handle shaft 70 cannot rotate to prevent misoperation of an operator, the switch cabinet is safely operated and used, when the cabinet door 30 is opened for maintenance or overhaul, the first elastic piece 170 enables the first lock rod 90 to move to the locking part 121 on the first lock block 120, the locking part 121 locks the first lock rod 90 to limit the operation shaft 60 to prevent misoperation of the operator, and the potential safety hazard is caused.

The lock hook 200 is disposed on the second lock rod 100, the lock catch 210 is disposed on one side of the cabinet door 30 facing the cabinet 10, when the isolating switch 50 is switched on, the second elastic member 180 enables the second lock rod 100 to move toward the second lock block 130, and the lock hook 210 is hooked by the lock hook 200.

The operating shaft 60 is rotated to switch on the isolating switch 50, the second elastic piece 180 enables the second lock rod 100 to move towards the second lock block 130, the second lock rod 100 drives the lock rod to move, the lock hook 200 hooks the lock catch 210, the cabinet door 30 is locked, and further the cabinet door 30 cannot be opened when the switch cabinet works so as to eliminate potential safety hazards.

The driving assembly 220 includes a sliding plate 221 slidably disposed on the mounting frame 80, a protrusion 222 sliding synchronously is disposed on the first lock rod 90, a pressing block 223 is disposed on the sliding plate 221, when the cabinet door 30 is pressed on the sliding plate 221, the sliding plate 221 slides, the pressing block 223 is pressed on the protrusion 222, the first lock rod 90 is separated from the locking portion 121, and a reset elastic member 224 enabling the sliding plate 221 to reset is disposed on the mounting frame 80.

In this embodiment, the return elastic member 224 may be a spring.

When the cabinet door 30 is closed, the cabinet door 30 pushes the sliding plate 221 to move, the pressing block 223 is pressed on the protruding block 222, the protruding block 222 drives the first locking rod 90 to be away from the first locking block 120, the first locking rod 90 is separated from the first locking portion 121, at this time, the operating shaft 60 rotates the closing isolating switch 50, the cabinet door 30 is opened after the isolating switch 50 is opened, the reset elastic member 224 enables the sliding plate 221 to reset, the pressing block 223 is separated from the protruding block 222, the first locking rod 90 moves towards the direction of the first locking block 120 under the driving of the elastic member 170, the first locking rod 90 abuts against the first locking portion 121 to limit the rotation of the operating shaft 60, after the cabinet door 30 is opened, the isolating switch 50 and the circuit breaker 20 cannot be closed, and potential safety hazards are eliminated.

The cabinet 10 is provided with a locking plate 230 capable of performing a lifting motion on the cabinet 10, the handle shaft 70 drives the locking plate 230 through the linkage 270 to perform a lifting motion on the cabinet 10, the locking plate 230 is provided with a plurality of locking slots 231, and when the handle shaft 70 rotates to close the circuit breaker 20, the locking slots 231 lock the plug 240 inserted at the power input port 40.

When the handle shaft 70 rotates to close the circuit breaker 20, the locking slot 231 locks the plug 240 inserted in the power input port 40, so as to avoid the potential safety hazard of power consumption caused by the plug 240 separating from the power input port 40 when the switch cabinet charges the electric vehicle.

Wherein, be equipped with a set of balancing unit 250 of installing respectively in the both ends department of jam plate 230 on the cabinet body 10, balancing unit 250 contains first connecting rod 251, second connecting rod 252 and torsional spring 253, be equipped with articulated shaft 254 on the cabinet body 10, the one end of first connecting rod 251 articulates in articulated shaft 254, and the other end articulates in the one end of second connecting rod 252, and the other end of second connecting rod 252 articulates on jam plate 230, and torsional spring 253 overlaps locates on articulated shaft 254, and the one end of torsional spring 253 is connected in the cabinet body 10, and the other end is connected in first connecting rod 251, when avoiding jam plate 230 to do elevating movement on the cabinet body 10, jam plate 230 is on the cabinet body 10.

The linkage mechanism 270 includes a first hinge rod 271 disposed on the handle shaft 70 and rotating synchronously with the handle shaft 70, the first hinge rod 271 is hinged to a second hinge rod 272, and the second hinge rod 272 is hinged to the lock plate 230.

When the handle shaft 70 rotates the closing circuit breaker 20, the handle shaft 70 drives the first hinge rod 271 to swing, the first hinge rod 271 drives the second hinge rod 272 to swing, the second hinge rod 272 drives the lock plate 230 to move up and down on the cabinet 10, so that the plug 240 can fall into the lock slot 231, the lock plate 230 locks the plug 240 and limits the plug 240 from being separated from the power input port 40, when the handle shaft 70 rotates the opening circuit breaker 20, the handle shaft 70 drives the first hinge rod 271 to swing, the first hinge rod 271 drives the second hinge rod 272 to swing, the second hinge rod 272 drives the lock plate 230 to move up and down on the cabinet 10, so that the plug 240 can be separated from the lock slot 231, so that the lock plate 230 can be separated from the plug 240, and the plug 240 can be separated from the power input port 40.

Wherein, be equipped with guide bar 260 on the cabinet body 10, be equipped with guiding hole 232 on the jam plate 230, guide bar 260 wears out the guiding hole 232 setting for when jam plate 230 is the elevating movement on the cabinet body 10, the direction slides, further avoids jam plate 230 to block on the cabinet body 10.

By combining the above technical solutions, when operating the switch cabinet, the cabinet door 30 needs to be closed first, the cabinet door 30 drives the driving assembly 220 to separate the first lock rod 90 from the locking part 121 of the first lock block 120, so as to unlock the operating shaft 60, the operating shaft 60 rotates to close the isolating switch 50, meanwhile, the second locking block 130 releases the second locking lever 100, the second elastic member 180 drives the second locking lever 100 to disengage from the first slot 161 of the fifth locking block 160, the second locking lever 100 disengages from the first slot 161 of the fifth locking block 160 to unlock the handle shaft 70, the handle shaft 70 rotates to close the circuit breaker 20, at the same time, the fourth locking block 150 rotates, the fourth locking block 150 presses the third locking bar 110 into the second slot 141 of the third locking block 140 to restrict the rotation of the operating shaft 60, when the handle shaft 70 rotates to close the circuit breaker 20, the handle shaft 70 simultaneously drives the linkage 270 to make the locking plate 230 perform a lifting motion on the cabinet 10, the locking slot 231 on the locking plate 230 locks the plug 240 inserted at the power input port 40 to restrict the plug 240 from being separated from the power input port 40, when the brake is required to be opened, the handle shaft 70 is firstly rotated to open the brake circuit breaker 20, meanwhile, the handle shaft 70 drives the locking plate 230 to do lifting motion on the cabinet body 10 through the linkage 270, the plug 240 is separated from the locking groove 231, the elastic piece III 190 drives the third locking rod 110 to be separated from the second insertion groove 141, the operating shaft 60 is unlocked, the operating shaft 60 is rotatable, the operating shaft 60 rotates the brake separating isolating switch 50, the second locking block 130 presses the second locking rod 100 into the first insertion groove 161 to complete the brake opening, when the cabinet door 30 is opened for maintenance or overhaul, the first elastic piece 170 enables the first lock rod 90 to move to the locking part 121 on the first lock block 120, the locking part 121 locks the first lock rod 90, and the operation shaft 60 is limited to rotate, so that the misoperation of an operator is prevented, and potential safety hazards are avoided.

Claims

1. The utility model provides a switch cabinet, includes the cabinet body, and the internal circuit breaker that is equipped with of cabinet is equipped with power input port on the cabinet body, still is equipped with on the cabinet body to lock the cabinet door in the cabinet body, its characterized in that: the internal isolator that is equipped with of cabinet, power input port, isolator and circuit breaker establish ties in proper order, the internal rotation of cabinet is equipped with the operating axis of control isolator combined floodgate or separating brake, the internal rotation of cabinet is equipped with the handle axle of control circuit breaker combined floodgate or separating brake, and the operating axis is equipped with synchronous pivoted first locking piece, second locking piece and third locking piece, and the handle axle is equipped with synchronous pivoted fourth locking piece and fifth locking piece, the internal mounting bracket that is equipped with of cabinet, the slip is equipped with first locking lever, second locking lever and third locking lever on the mounting bracket, and first locking lever, second locking lever, third locking lever all locate between operating axis and handle axle, first locking piece is equipped with locking part, be equipped with elastic component one on the mounting bracket, when isolator, circuit breaker all are in separating brake, elastic component one can drive first locking lever and move towards first locking piece, locking part can lock first locking lever, the cabinet body is internally provided with a driving assembly, when the cabinet door is closed, the cabinet door can drive the driving assembly to drive the first lock rod to be separated from the locking part, so that the operation shaft can rotate to close the switch-on isolating switch, the fifth lock block is provided with a first slot, the mounting frame is provided with a second elastic piece, when the isolating switch and the circuit breaker are both in a brake-off state, the second lock block presses the second lock rod into the first slot to limit the handle shaft to rotate the switch-on circuit breaker, when the isolating switch is in a switch-on state and the circuit breaker is in a brake-off state, the second elastic piece can drive the second lock rod to be separated from the first slot, the handle shaft can rotate the switch-on circuit breaker, the third lock block is provided with a second slot, the mounting frame is provided with a third elastic piece, when the isolating switch and the circuit breaker are both in a switch-on state, the fourth lock block presses the third lock rod into the second slot to limit the operation shaft to rotate the switch-off isolating switch, when the breaker is in the opening state and the isolating switch is in the closing state, the third elastic piece can drive the third lock rod to be separated from the second slot, and the operation shaft can rotate the opening isolating switch.

2. The switch cabinet according to claim 1, wherein the second lock rod is provided with a lock hook, a lock catch is provided on a side of the cabinet door facing the cabinet body, when the isolating switch is switched on, the second elastic member moves the second lock rod towards the second lock block, and the lock hook hooks the lock catch.

3. The switch cabinet according to claim 1 or 2, wherein the driving assembly comprises a sliding plate slidably disposed on the mounting frame, the first lock rod is provided with a projection for synchronous sliding, the sliding plate is provided with a pressing block, when the cabinet door is pressed on the sliding plate, the sliding plate slides, the pressing block is pressed on the projection, the first lock rod is separated from the locking portion, and the mounting frame is provided with a return elastic member for returning the sliding plate.

4. The switch cabinet according to claim 1 or 2, wherein the cabinet body is provided with a locking plate capable of performing lifting motion on the cabinet body, the handle shaft drives the locking plate to perform lifting motion on the cabinet body through the linkage mechanism, the locking plate is provided with a plurality of locking slots, and when the handle shaft rotates to close the circuit breaker, the locking slots lock the plug inserted at the power input port.

5. The switch cabinet according to claim 4, wherein the cabinet body is provided with a set of balancing devices respectively installed at two ends of the locking plate, the balancing devices comprise a first connecting rod, a second connecting rod and a torsion spring, the cabinet body is provided with a hinged shaft, one end of the first connecting rod is hinged to the hinged shaft, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to the locking plate, the torsion spring is sleeved on the hinged shaft, one end of the torsion spring is connected to the cabinet body, and the other end of the torsion spring is connected to the first connecting rod.

6. The switchgear cabinet according to claim 4, wherein the linkage mechanism comprises a first hinge rod disposed on the handle shaft and rotating synchronously with the handle shaft, the first hinge rod is hinged to a second hinge rod, and the second hinge rod is hinged to the lock plate.

7. The switch cabinet according to claim 4, wherein the cabinet body is provided with a guide rod, the lock plate is provided with a guide hole, and the guide rod penetrates through the guide hole.