CN109038342B - Switch cabinet with interlocking structure - Google Patents
Switch cabinet with interlocking structure Download PDFInfo
- Publication number
- CN109038342B CN109038342B CN201810992172.XA CN201810992172A CN109038342B CN 109038342 B CN109038342 B CN 109038342B CN 201810992172 A CN201810992172 A CN 201810992172A CN 109038342 B CN109038342 B CN 109038342B
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- Prior art keywords
- unlocking
- module
- contact
- switch
- partition
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
Abstract
The invention discloses a switch cabinet with an interlocking structure, which comprises: a first rotating rod mounted on a first side of the partition: the first contact is arranged at one end of the first rotating rod and used for moving towards the direction of the partition plate when the metering handcart enters the first space and collides; the contact switch is arranged on the contact switch facing the first contact and used for switching on a power supply loop when the first contact is sensed to move towards the direction of the partition plate; the first electromagnetic blocking head is arranged on the second side edge of the partition plate and used for retracting when the contact switch is connected with a power supply circuit, so that the circuit breaker handcart can enter a second space; a second rotating bar mounted on a second side of the partition; the second contact is arranged at one end of the second rotating rod and used for moving towards the direction of the partition plate when the circuit breaker handcart enters and collides; the pull rod switch is arranged at the other end of the second rotating rod and used for disconnecting the power supply loop when the second contact moves towards the direction of the partition plate; and the second electromagnetic blocking head is arranged on the first side edge of the partition plate.
Description
Technical Field
The invention relates to a switch cabinet, in particular to a switch cabinet with an interlocking structure, which can be unlocked according to a user instruction.
Background
The existing switch cabinets generally have the requirement of ensuring five-prevention interlocking of the switch cabinets, and the Chinese invention CN108092173 discloses a switch cabinet so as to realize the characteristics of simple and reliable structure and convenient installation and maintenance.
Fig. 1 shows the structure of the switch cabinet, which includes an inlet cabinet 1 and a metering cabinet 2, wherein a first accommodating space capable of accommodating a circuit breaker handcart to pass in and out is formed in an inner cavity of the inlet cabinet 1, a second accommodating space capable of accommodating a metering handcart 11 to pass out and in is formed in an inner cavity of the metering cabinet 2, a partition plate 3 is arranged between the first accommodating space and the second accommodating space, a first through hole and two second through holes are formed in the partition plate 3, the first through hole and the second through hole are respectively communicated with the inlet cabinet 1 and the metering cabinet 2, one surface of the partition plate 3 facing the first accommodating space is set as a first plane, one surface of the partition plate 3 facing the second accommodating space is set as a second plane, and the switch cabinet further includes a first locking device 4 and a second locking device 5 which are arranged on the partition plate 3.
Fig. 2 shows the interlocking structure of this cubical switchboard, first locking device 4 is including establishing first cantilever 6 on the second plane and with first cantilever 6 articulated first pin 7, the middle part of first pin 7 is equipped with the articulated shaft respectively, first cantilever 6 includes two upper and lower parallel cantilever plates of fixing on baffle 3, be equipped with six groups of hinge holes on the cantilever plate respectively, the articulated shaft of first pin 7 passes through the hinge hole and articulates with first cantilever 6 respectively, it can make the pin articulated in different positions in order to satisfy the operation requirement to set up multiunit hinge hole, can improve the commonality of cantilever, make interlocking mechanism simple structure, installation easy maintenance and low in manufacturing cost. The two ends of the first stop lever 7 are respectively provided with a first bolt 8 which passes through the first through hole and can be extended into and out of the first accommodating space and a first contact 9 which extends into the second accommodating space. The first bolt 8 extends into the first accommodating space and prevents the circuit breaker handcart from entering the first accommodating space. After the metering handcart 11 enters the second accommodating space and triggers the first contact 9, the first stop lever 7 rotates and drives the first bolt 8 to exit the first accommodating space, so that the circuit breaker handcart can enter and exit the first accommodating space.
A first guide plate 12 extending out of the first accommodating space is arranged on the first plane, a first guide hole corresponding to the position of the first bolt 8 is formed in the first guide plate 12, the first bolt 8 penetrates through the first through hole and the first guide hole, a first flange is arranged on the first bolt 8 and is arranged between the first guide plate 12 and the partition plate 3, and a spring sleeved on the first bolt 8 is arranged between the first flange and the partition plate 3, so that after the metering handcart 11 exits from the second accommodating space, the first bolt 8 can automatically reset and is positioned in the first accommodating space, and the circuit breaker handcart cannot enter and exit the first accommodating space.
However, the switch cabinet has two technical problems, one of which is that the first bolt 8 and the second bolt 15 need to pass through the partition plate 3 to work, and thus, when the switch cabinet works, the first bolt and the second bolt rub against the partition plate to cause mechanical interference; secondly, the unlocking of the switch cabinet is not limited, and any person can unlock the switch cabinet at will.
Disclosure of Invention
The invention aims to provide a switch cabinet with an interlocking structure, which can solve the technical problems and is used for avoiding the mechanical interference of the switch cabinet and enabling the switch cabinet to be overhauled only under the condition of specified time intervals and times.
The invention discloses a switch cabinet with an interlocking structure, which comprises a cabinet body, a partition plate, the interlocking structure arranged on the partition plate, a first space separated by a first side of the partition plate and used for a metering handcart to enter and exit, and a second space separated by a second side of the partition plate and used for a circuit breaker handcart to enter and exit, wherein the interlocking structure comprises:
a first rotating rod mounted on a first side of the partition:
the first contact is arranged at one end of the first rotating rod and used for moving towards the direction of the partition plate when the metering handcart enters the first space and collides;
the contact switch is arranged on the contact switch facing the first contact and used for switching on a power supply loop when the first contact is sensed to move towards the direction of the partition plate;
the first electromagnetic blocking head is arranged on the second side edge of the partition plate and used for retracting when the contact switch is connected with a power supply circuit, so that the circuit breaker handcart can enter a second space;
a second rotating bar mounted on a second side of the partition;
the second contact is arranged at one end of the second rotating rod and used for moving towards the direction of the partition plate when the circuit breaker handcart enters and collides;
the pull rod switch is arranged at the other end of the second rotating rod and used for disconnecting the power supply loop when the second contact moves towards the direction of the partition plate;
and the second electromagnetic blocking head is arranged on the first side edge of the partition plate and used for extending outwards under the action of the spring when the pull rod switch is disconnected with a power supply circuit so as to lock the metering handcart entering the first space.
Preferably, the further interlocking structure of the switchgear comprises a spring 30 mounted at the other end of the first lever 23 for resetting the first contact.
Preferably, the interlocking structure of the switch cabinet further comprises a first cantilever mounted on the first side of the partition board and serving as a rotating shaft of the first rotating rod 23, and a second cantilever mounted on the second side of the partition board and serving as a rotating shaft of the second rotating rod.
Preferably, the switch cabinet of the invention further comprises an electronic lock which is arranged on the door of the switch cabinet and is used for unlocking according to the command of the handheld terminal.
Preferably the electronic lock comprises: the radio frequency module is used for receiving an instruction transmitted by the handheld mobile terminal and returning a state signal to the handheld terminal; the safety module is used for determining whether to send an unlocking command to the unlocking module according to the unlocking state of the radio frequency module when receiving the unlocking command of the radio frequency module; and the unlocking module is used for receiving the unlocking instruction sent by the safety module and carrying out unlocking operation.
Preferably, the determining, by the security module, whether to issue the unlocking command to the unlocking module according to the unlocking state thereof includes: the safety module checks whether an unlocking instruction is sent within a specified time; if the time interval of the unlocking instruction is smaller than the specified unlocking time interval, the unlocking is refused, otherwise, the unlocking is allowed.
Preferably, the determining, by the security module according to the unlocking state thereof, whether to issue the unlocking command to the unlocking module further includes: the safety module checks whether an unlocking instruction is sent within a specified number of times; if the number of times of unlocking is less than the specified number of times of unlocking, unlocking is allowed, otherwise, unlocking operation is refused to be executed.
Preferably, the electronic lock further comprises an emergency opening module connected with the radio frequency module, and the emergency opening module is used for directly performing unlocking operation according to a high-level command of the handheld terminal.
Preferably, the advanced command of the handheld mobile terminal includes an encrypted unlocking command, and the emergency unlocking module sends the unlocking command to the unlocking module after successfully decrypting the encrypted unlocking command.
Preferably, the security module comprises: the unlocking state module is used for recording an unlocking state, wherein the unlocking state comprises whether the unlocking times reach the specified unlocking times or not and whether the unlocking time interval reaches the specified unlocking time interval or not; and the judging module is used for determining whether to unlock according to the unlocking state.
Compared with the prior art, the switch cabinet has the following beneficial effects: 1) mechanical interference can be eliminated, and friction noise is reduced; 2) the switch cabinet can be prevented from being opened by irrelevant personnel at will, so that the safety of the switch cabinet is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a conventional switchgear;
FIG. 2 is a schematic diagram of an interlocking structure of a prior art switchgear;
FIG. 3 is a schematic view of the switchgear with electronic lock of the present invention;
FIG. 4 is a schematic diagram showing a first locking configuration of the present invention;
FIG. 5 is a schematic view showing a second locking arrangement of the present invention;
FIG. 6 is a schematic diagram showing the principle structure of the electromagnetic shield of the present invention;
FIG. 7 is a schematic diagram of the operation of the contact switch of the present invention;
FIG. 8 is a schematic diagram of the operation of the pull rod switch of the present invention;
FIG. 9 is a schematic diagram of the electronic lock of the present invention;
fig. 10 is a schematic view of an embodiment of the electronic lock of the present invention.
Description of reference numerals: a wire inlet cabinet 1; a metering cabinet 2; a partition plate 3, a first locking device 4; a second locking device 5; a first cantilever 6; a first bar 7; a first plug pin 8; a first contact 9; a first guide plate 12; a second cantilever 13; a second bar 14; a second pin 15; a second contact 16; a connecting rod 17; a plug-pin fixing portion 18; a second guide plate 19; a first contact 20; a contact switch 21; a first suspension arm 22; a first rotating lever 23; an electromagnetic shield 24; a second cantilever arm 25; a second rotating bar 26; a second contact 27; a pull-rod switch 28, a second electromagnetic stop 29; a second spring 30; a core 31; a spring 32; a stopper 33; a coil 34; an electromagnetic lock 35; a radio frequency module 350; a security module 351; an unlocking module 352; an emergency opening module 353; a determination module 3510; status module 3511.
Detailed Description
Fig. 3 shows a switch cabinet of the present invention, which has a cabinet door and an electronic lock 35 disposed on the cabinet door, and is used for receiving an unlocking instruction of a handheld mobile terminal, and when the unlocking instruction meets the unlocking requirement, the cabinet door can be opened to facilitate the maintenance of a worker, thereby avoiding other irrelevant people from opening the switch cabinet at will.
After the switch cabinet is opened, the circuit breaker handcart and the metering trolley of the switch cabinet can be overhauled.
Fig. 4 and 5 show an embodiment of a switch cabinet with an interlocking structure, which comprises a cabinet body, a partition plate, an interlocking structure arranged on the partition plate, a first space for metering handcart to enter and exit and a second space for circuit breaker handcart to enter and exit, wherein the first space is partitioned by a first side of the partition plate, and the second space is partitioned by a second side of the partition plate. The first locking structure comprises a first turning bar 23 mounted on a first side of the partition: the first contact 20 is arranged at one end of the first rotating rod 23 and used for moving towards the direction of the partition plate when the metering handcart enters a first space and collides; and a second swivel 26 mounted on a second side of the partition; and a second contact 27 mounted on one end of the second rotating rod 26 for moving toward the partition when the circuit breaker handcart enters and collides.
Different from the prior art, the contact switch 21 is arranged on the first contact 20 and used for switching on the power supply circuit when the first contact 20 is sensed to move towards the direction of the partition board; the first electromagnetic stop 24 is arranged on the second side edge of the partition board and is used for retracting when the contact switch 21 is connected with a power supply circuit, so that the circuit breaker handcart can enter the second space; a pull rod switch 28 disposed at the other end of the second rotating rod 26 for disconnecting the power circuit when the second contact 27 moves toward the partition; a second electromagnetic stop 29, mounted on the first side of the partition, is provided for projecting outwards under the action of the spring when the rod switch 28 is open to the power supply circuit, so as to lock the metering truck that has entered the first space.
Since the electromagnetic stops 24 and 29 are actuated by the contact switch 21 and the pull rod switch 28 and do not contact the partition during operation, mechanical interference is avoided and no harsh mechanical noise is generated.
It is noted that although fig. 4 and 5 do not show the wiring of the magneto contacts, those skilled in the art will appreciate that the switches can be electrically connected to the electronic switches by embedding or by open wires.
Fig. 6 shows a principle structure of the electromagnetic stopper, including a circular hollow core 31; a coil 34 wound on the core 31 for generating a magnetic field when energized; a moving contact of the stop 33, mounted in the core 31, which moves under the action of the magnetic field when the coil is energized to generate the magnetic field, the moving contact of the stop 33 being generally made of an armature; a spring 32 mounted in the core and abutting the moving contact of the stop 33, for ejecting the contact.
For the electromagnetic catch 24, when its coil is energized, it generates a magnetic force that causes the catch 33 to move inwardly, thereby retracting the electromagnetic catch; since the pull rod switch 28 is a normally closed switch, the electromagnetic stopper 29 is electrically disconnected when the second contact moves toward the partition, and thus extends outward under the action of the spring.
In addition, the present invention further includes a first cantilever 22 installed at a first side of the partition to serve as a rotation axis of the first rotating bar 23, and a second cantilever 25 installed at a second side of the partition to serve as a rotation axis of the second rotating bar 26.
Referring to the circuit configuration of the electronic lock 35 shown in fig. 9, it includes: the radio frequency module is used for receiving an instruction transmitted by the handheld mobile terminal and returning a state signal to the handheld terminal; the safety module is used for determining whether to send an unlocking command to the unlocking module according to the unlocking state of the radio frequency module when receiving the unlocking command of the radio frequency module; and the unlocking module is used for receiving the unlocking instruction sent by the safety module and carrying out unlocking operation.
The safety module determines whether to send an unlocking command to the unlocking module according to the unlocking state of the safety module, and the method comprises the following steps: the safety module checks whether an unlocking instruction is sent within a specified time; if the time interval of the unlocking instruction is smaller than the specified unlocking time interval, the unlocking is refused, otherwise, the unlocking is allowed.
The safety module determines whether to send an unlocking command to the unlocking module according to the unlocking state of the safety module, and the method further comprises the following steps: the safety module checks whether an unlocking instruction is sent within a specified number of times; if the number of times of unlocking is less than the specified number of times of unlocking, unlocking is allowed, otherwise, unlocking operation is refused to be executed.
In addition, the electromagnetic lock also comprises an emergency opening module connected with the radio frequency module and used for directly unlocking according to the advanced command of the handheld terminal. The advanced command of the handheld mobile terminal comprises an encrypted unlocking command, and the emergency opening module sends the unlocking command to the unlocking module after successfully decrypting the encrypted unlocking command.
Referring to the embodiment of the security module shown in fig. 10, the security module includes an unlock state module 3511 for recording an unlock state, the unlock state including whether the number of unlocks reaches a specified number of unlocks, whether the unlock time interval reaches a specified unlock time interval; the determining module 3510 for determining whether to unlock the electronic lock according to the unlock state sends a command to unlock the electronic lock to the unlocking module according to the unlock command sent by the user mobile terminal when the unlock times and the unlock interval are met, and otherwise does not send a command to unlock the electronic lock.
Generally, the state module 3511 records data of the unlocking time of the unlocking operation, when the user mobile terminal sends an unlocking instruction, the state module 3511 reads the data of the unlocking time and sends the read data to the user mobile terminal, so that the user mobile terminal can determine whether to open the switch cabinet for maintenance according to the data, and if the unlocking time indicates that the unlocking operation is performed recently, the switch cabinet is proved to be maintained, and the maintenance is not needed.
On the other hand, the user mobile terminal is provided with a special client and has a general operation function and an emergency operation function. When the general function is started, the unlocking operation can be carried out according to the state of the switch cabinet; when the emergency operation function is started, the terminal is authorized by the superior terminal, otherwise, the terminal cannot be operated, so that the operator can be effectively restricted, and the switch cabinet can be prevented from being opened randomly.
It should be noted that the contact switch 21 and the pull rod switch 28 may be any type of tact switch that can be energized once it is activated.
As described above, the invention can eliminate mechanical interference, reduce friction noise, prevent irrelevant personnel from opening the switch cabinet at will and ensure the safety of the switch cabinet.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and various modifications can be made by those skilled in the art in light of the principle of the present invention. Thus, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a cubical switchboard with interlocking structure, includes the cabinet body, baffle, installs the interlocking structure on the baffle, the supply that separates by baffle first side measures the first space of handcart business turn over and the second space that supplies the breaker handcart business turn over that separates by baffle second side, interlocking structure includes:
a first rotating rod mounted on a first side of the partition:
the first contact is arranged at one end of the first rotating rod and used for moving towards the direction of the partition plate when the metering handcart enters the first space and collides;
a second rotating bar mounted on a second side of the partition;
the second contact is arranged at one end of the second rotating rod and used for moving towards the direction of the partition plate when the circuit breaker handcart enters and collides;
characterized in that, the interlocking structure still includes:
the contact switch is used for switching on a power supply circuit when sensing that a first contact arranged at one end of a first rotating rod on the first side of the partition moves towards the direction of the partition, and the contact switch is arranged to face the first contact;
a spring mounted at the other end of the first rotating rod for resetting the first contact;
the first electromagnetic blocking head is arranged on the second side edge of the partition plate and used for retracting when the contact switch is switched on a power supply loop, so that the circuit breaker handcart can enter a second space;
the pull rod switch is arranged at the other end of the second rotating rod arranged on the second side of the partition board and is used for disconnecting the power supply loop when the second contact arranged at one end of the second rotating rod moves towards the direction of the partition board;
the second electromagnetic stop is arranged on the first side edge of the partition plate and used for extending outwards under the action of the spring when the pull rod switch disconnects the power supply circuit, and locking the metering handcart entering the first space;
the cubical switchboard still includes the electronic lock that is used for carrying out the operation of unblanking according to handheld terminal's order of installing on the cubical switchboard cabinet door, the electronic lock includes: and the safety module is used for determining whether to send an unlocking command or not according to the unlocking state when receiving the unlocking command.
2. The switchgear cabinet of claim 1, wherein the electronic lock further comprises:
the radio frequency module is used for receiving an instruction transmitted by the handheld terminal, sending an unlocking instruction to the security module and returning a state signal of the security module to the handheld terminal;
and the unlocking module is used for receiving the unlocking instruction sent by the safety module and carrying out unlocking operation.
3. The switchgear cabinet of claim 2, wherein the security module determining whether to issue an unlock command to the unlocking module based on its unlocked state comprises:
the safety module checks whether an unlocking instruction is sent within a specified time;
if the time interval of the unlocking instruction is smaller than the specified unlocking time interval, the unlocking is refused, otherwise, the unlocking is allowed.
4. The switchgear cabinet of claim 3, wherein the security module determining whether to issue an unlock command to the unlocking module based on its unlocked state further comprises:
the safety module checks whether an unlocking instruction is sent within a specified number of times;
if the number of times of unlocking is less than the specified number of times of unlocking, unlocking is allowed, otherwise, unlocking operation is refused to be executed.
5. The switch cabinet according to claim 2 or 3, further comprising an emergency opening module connected to the radio frequency module for directly performing an unlocking operation according to a high-level command of the handheld terminal.
6. The switch cabinet according to claim 5, wherein the advanced command of the handheld terminal comprises an encrypted unlocking command, and the emergency unlocking module sends the unlocking command to the unlocking module after successfully decrypting the encrypted unlocking command.
7. The switchgear cabinet according to claim 6, characterized in that the safety module comprises:
the unlocking state module is used for recording an unlocking state, wherein the unlocking state comprises whether the unlocking times reach the specified unlocking times or not and whether the unlocking time interval reaches the specified unlocking time interval or not;
and the judging module is used for determining whether to unlock according to the unlocking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992172.XA CN109038342B (en) | 2018-08-29 | 2018-08-29 | Switch cabinet with interlocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992172.XA CN109038342B (en) | 2018-08-29 | 2018-08-29 | Switch cabinet with interlocking structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038342A CN109038342A (en) | 2018-12-18 |
| CN109038342B true CN109038342B (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810992172.XA Active CN109038342B (en) | 2018-08-29 | 2018-08-29 | Switch cabinet with interlocking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109038342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117638B (en) * | 2023-08-31 | 2024-03-12 | 广州盛美电气设备有限公司 | Locking device for switch cabinet protection plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831680A (en) * | 2012-08-27 | 2012-12-19 | 孟军 | Electronic lock core, access control system and management method |
| CN106025892B (en) * | 2016-07-15 | 2018-04-17 | 安徽明远电力设备制造有限公司 | Xiamen interlock after a kind of switchgear |
| CN108092173B (en) * | 2018-01-24 | 2024-01-16 | 广东友源电气有限公司 | Duplex two-way interlocking mechanism of switch cabinet |
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2018
- 2018-08-29 CN CN201810992172.XA patent/CN109038342B/en active Active
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| Publication number | Publication date |
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| CN109038342A (en) | 2018-12-18 |
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