CN111341596A - Prevent electrified mistake and close earthing knife-switch device - Google Patents
Prevent electrified mistake and close earthing knife-switch device Download PDFInfo
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- CN111341596A CN111341596A CN202010223947.4A CN202010223947A CN111341596A CN 111341596 A CN111341596 A CN 111341596A CN 202010223947 A CN202010223947 A CN 202010223947A CN 111341596 A CN111341596 A CN 111341596A
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- baffle
- side plate
- driving assembly
- bottom plate
- assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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Abstract
The invention provides an anti-electrified mistaken-connection grounding knife brake device which comprises a base, a driving assembly, a transmission assembly and a baffle, wherein the base comprises a bottom plate and side plates arranged on two opposite sides of the bottom plate, the length of one side plate is greater than that of the other side plate, and an operation hole is formed in the position, extending out of the other side plate, of one side plate; the driving assembly is arranged on the other side plate, the input end of the driving assembly is connected with the output end of a to-be-installed switch cabinet bus voltage transformer, and the output end of the driving assembly is connected with the driving end of the transmission assembly; one end of the transmission component is fixedly arranged on the bottom plate, and the other end of the transmission component is connected with the baffle; when the driving assembly is in a non-electrified state, the baffle is arranged on one side of the operation hole close to the bottom plate; when drive assembly is charged state, drive assembly removes and makes the baffle cover the setting on the handle hole to avoid under the electrified circumstances of cubical switchboard mistake closure earthing knife-switch to lead to the electrified ground connection of cubical switchboard lower extreme cable.
Description
Technical Field
The invention relates to the field of auxiliary devices of power equipment, in particular to a grounding knife switch device capable of preventing electrified mistaken connection.
Background
At present, mechanical locks for preventing misoperation are arranged in a medium-voltage load switch cabinet or a medium-voltage circuit breaker switch cabinet used in a 10kV distribution network, a grounding knife switch can be switched on only after the switch is disconnected, and a load switch can be switched on only after the grounding knife switch is disconnected. However, 10kV joins in marriage net twine way at present and is mostly the looped netowrk power supply, in closing the ring operation, when the switch is in the branch floodgate position, switch operation hole and earthing switch operation hole can be opened, both can carry out the switch-on operation this moment, also can carry out the operation of closing earthing switch, consequently appear easily in the operation of looped netowrk circuit because of the mistake closes earthing switch and causes the electrified grounded hidden danger of switch lower extreme cable, especially partial cubical switchboard operation hole distance is nearer, misjudgement operation hole causes the condition of closing earthing switch during the closing operation.
Disclosure of Invention
The invention provides a grounding switch device capable of preventing the mistaken closing of an electrified grounding switch, aiming at overcoming the defect that the electrified grounding of a cable at the lower end of a switch cabinet is easily caused by the mistaken operation of closing the grounding switch in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the anti-charged mistaken-connection grounding knife brake device comprises a base, a driving assembly, a transmission assembly and a baffle plate, wherein the base comprises a bottom plate and side plates arranged on two opposite sides of the bottom plate, the length of one side plate is larger than that of the other side plate, and an operation hole is formed in the position, extending out of the other side plate, of one side plate; the driving assembly is arranged on the other side plate, the input end of the driving assembly is connected with the output end of a to-be-installed switch cabinet bus voltage transformer, and the output end of the driving assembly is connected with the driving end of the transmission assembly; one end of the transmission component is fixedly arranged on the bottom plate, and the other end of the transmission component is connected with the baffle; when the driving assembly is in a non-electrified state, the baffle is arranged on one side of the operation hole close to the bottom plate; when the driving component is in a charged state, the transmission component moves and enables the baffle plate to be arranged on the operation hole in a covering mode.
Among this technical scheme, the curb plate of seting up the handle hole on the base matches the installation with the cubical switchboard ground connection switch of treating the installation, drive assembly is connected with the cubical switchboard generating line voltage transformer's of treating the installation output, when the cubical switchboard generating line is electrified, voltage transformer sends the signal of telecommunication to drive assembly, drive assembly switches on and begins to drive assembly and operates, drive assembly promotes the baffle, the baffle removes to covering the setting on the handle hole from one side that the handle hole is close to the bottom plate under drive assembly's impetus, realize the cubical switchboard generating line and seal the handle hole when electrified, thereby avoid operating personnel maloperation to insert the ground sword hole and lead to electrified ground sword that closes.
Preferably, the driving assembly comprises a first relay and a motor, wherein the first relay is connected with a to-be-installed switch cabinet bus voltage transformer, a normally open node of the first relay is connected with the motor in series, and an output end of the motor is connected with a driving end of the transmission assembly as an output end of the driving assembly.
Preferably, the transmission assembly comprises a transmission rod or an electric push rod.
Preferably, the drive assembly comprises an electromagnet and the transmission assembly comprises a spring rod; the electromagnet is arranged at one end of the other side plate far away from the bottom plate; the spring rod is provided with one end of a spring and is fixedly arranged on the bottom plate, the other end of the spring rod is connected with the baffle, and the other end of the spring rod is provided with a strong magnet.
Preferably, the baffle is L type baffle, and the baffle sets up with a curb plate laminating.
Preferably, two sides of the base are provided with door hinges for fixing the base outside the grounding knife switch operation hole of the switch cabinet.
Preferably, the other side plate is provided with a cover plate for opening the base, so that the driving assembly is convenient to inspect and maintain.
Preferably, a limiting structure is arranged in the middle of one side plate and used for limiting the baffle and limiting the position of the baffle moving towards the direction of the bottom plate.
Preferably, the device also comprises a second relay and an alarm module, the second relay is connected with a to-be-installed switch cabinet bus voltage transformer, and a normally open node of the second relay is connected with the alarm module in series.
Preferably, the alarm module comprises an audible and visual alarm or a buzzer.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: through combining target cubical switchboard bus-bar voltage transformer, send the signal of telecommunication and make it switch on work to drive assembly when voltage transformer response voltage signal, drive assembly drive transmission assembly motion makes the baffle motion rather than being connected to cover on the handle hole completely to avoid under cubical switchboard lower extreme cable side electrified circumstances mistake closure to lead to the electrified ground of cubical switchboard lower extreme cable.
Drawings
Fig. 1 is a schematic structural view of an anti-misclosing grounding switch device in embodiment 1.
Fig. 2 is a schematic diagram of a conducting state of the anti-charging mis-closing grounding switch device in embodiment 1.
Fig. 3 is a schematic structural diagram of the charging-error-prevention grounding switch device according to embodiment 2.
Fig. 4 is a schematic diagram of a conducting state of the anti-charging mis-closing grounding switch device in embodiment 2.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The present embodiment provides an anti-charging mis-switch grounding switch device, as shown in fig. 1, which is a schematic structural diagram of the anti-charging mis-switch grounding switch device of the present embodiment.
The device for preventing the earthing knife-switch from being mistakenly connected with electricity provided by the embodiment comprises a base 1, a driving component 2, a transmission component 3 and a baffle 4, wherein the base 1 comprises a bottom plate 11 and side plates arranged on two opposite sides of the bottom plate, the length of one side plate 12 is greater than that of the other side plate 14, and an operation hole 13 is formed in the position, extending out of the other side plate 14, of one side plate 12; drive assembly 2 is disposed on the other side plate 14.
In this embodiment, the driving assembly 2 includes a first relay and a motor, wherein the first relay is connected with a to-be-installed switch cabinet bus voltage transformer, a normally open node of the first relay is connected in series with the motor, and an output end of the motor is connected with a driving end of the transmission assembly 3 as an output end of the driving assembly 2; the transmission assembly 3 adopts an electric push rod, one end of the electric push rod is fixedly arranged on the bottom plate 11, and the other end of the electric push rod is connected with the baffle 4.
In this embodiment, the baffle 4 is an L-shaped baffle, and the baffle 4 is attached to a side plate 12.
In the embodiment, door hinges 15 are arranged on two sides of the base 1, and a cover plate for opening the base is arranged on the other side plate 14, so that the driving assembly 2 is convenient to inspect and maintain; a limiting structure 16 is arranged in the middle of the side plate 12 and used for limiting the baffle 4 and limiting the position of the baffle 4 moving towards the bottom plate 11.
In the specific implementation process, the base 1 is fixedly arranged at the periphery of an earthing knife-switch operation hole of a target switch cabinet through door hinges 15 on two sides of the base 1, an operation hole 13 formed in a side plate 12 in the base 1 is matched with the earthing knife-switch operation hole of the target switch cabinet in installation and setting, a first relay in the driving assembly 2 is connected with a bus voltage transformer of the target switch cabinet, a motor is connected with an external power supply, and installation of the electrification error-prevention earthing knife-switch device is completed. When the cable of the target switch cabinet is not electrified, namely when the driving component 2 is in a non-conducting state, the transmission component 3 is connected with the baffle 4, the baffle 4 is arranged on one side of the operating hole 13 close to the bottom plate 11, the operating hole 13 is in an open state, and the grounding disconnecting link can be opened and closed according to normal operating specifications. When the target switch cabinet cable is electrified, the driving assembly 2 is conducted to work at the moment, specifically, the target switch cabinet bus voltage transformer sends an electric signal to the first relay, the first relay is conducted, the normally open node of the first relay is closed, the motor is conducted and works, the motor is started and controls the transmission assembly 3 to operate, the electric push rod extends under the driving action of the motor, the baffle 4 connected with the electric push rod moves to the direction of the operation hole 13 to completely cover the operation hole 13, the operation hole 13 is in a closed state, the grounding switch is inoperable at the moment, the operation that the grounding switch cannot be opened and closed is guaranteed under the electrified condition of the switch cabinet, and therefore the grounding switch is prevented from being mistakenly closed under the electrified condition of the lower end cable side of the switch cabinet.
Fig. 2 is a schematic diagram illustrating a conducting state of the anti-misengaging grounding switch device according to the present embodiment.
When fortune dimension personnel need carry out the inspection maintenance to drive assembly or transmission assembly, open the tool to lock that sets up on the apron and open the apron can, need not demolish and prevent electrified mistake and close earthing knife-switch device, can effectively improve fortune dimension personnel's operating efficiency.
In this embodiment, through combining target cubical switchboard bus voltage transformer, send the signal of telecommunication and make its switch on work to drive assembly 2 when voltage transformer induced voltage signal, drive assembly 2 drive transmission assembly 3 motion makes baffle 4 connected with it move to covering on handle hole 13 completely to avoid under the electrified circumstances of cubical switchboard mistake closure earthing knife-switch to lead to the electrified ground connection of cubical switchboard lower extreme cable side.
Example 2
The present embodiment provides an anti-charging mis-switch grounding switch device, as shown in fig. 3, which is a schematic structural diagram of the anti-charging mis-switch grounding switch device of the present embodiment.
The device for preventing the earthing knife-switch from being mistakenly connected with electricity provided by the embodiment comprises a base 1, a driving component 2, a transmission component 3 and a baffle 4, wherein the base 1 comprises a bottom plate 11 and side plates arranged on two opposite sides of the bottom plate, the length of one side plate 12 is greater than that of the other side plate 14, and an operation hole 13 is formed in the position, extending out of the other side plate 14, of one side plate 12; drive assembly 2 is disposed on the other side plate 14.
In this embodiment, the driving assembly 2 includes an electromagnet, and the transmission assembly 3 includes a spring rod; the electromagnet is arranged on the other side plate 14 and on one side of the operation hole 13 close to the bottom plate 11; the end of the spring rod provided with the spring is fixedly arranged on the bottom plate 11, the other end of the spring rod is connected with the baffle 4, and the other end of the spring rod is provided with a strong magnet 31.
In this embodiment, baffle 4 is L type structure baffle, and baffle 4 and the laminating of a curb plate 12 set up, and a curb plate 12 middle part is provided with limit structure 16 for play limiting displacement to baffle 4, restriction baffle 4 is to the position of 11 directions movements of bottom plate.
In this embodiment, two sides of the base 1 are provided with door hinges 15, and the other side plate 14 is provided with a cover plate for opening the base, so as to facilitate inspection and maintenance of the driving assembly 2.
In this embodiment, the device still includes second relay and alarm module 5, and the second relay is connected with the cubical switchboard busbar voltage transformer who treats the installation, and the normally open node and the alarm module 5 series connection of second relay, and alarm module 5 adopts bee calling organ.
In the specific implementation process, the base 1 is fixedly arranged at the periphery of an operation hole of a grounding switch of a target switch cabinet through door hinges 15 arranged at two sides of the base 1, an operation hole 13 formed in a side plate 12 in the base 1 is matched with the operation hole of the grounding switch of the target switch cabinet for installation, an electromagnet in the driving assembly 2 is connected with a bus voltage transformer of the target switch cabinet, and installation of the anti-electrified mistaken-closing grounding switch device is completed. When the cable of the target switch cabinet is not electrified, namely when the driving component 2 is in a non-conducting state, the transmission component 3 is connected with the baffle 4, the baffle 4 is arranged on one side of the operating hole 13 close to the bottom plate 11, the operating hole 13 is in an open state, and the grounding disconnecting link can be opened and closed according to normal operating specifications. When the cable of the target switch cabinet is electrified, the driving assembly 2 is conducted to work, specifically, the electromagnet is electrified and generates a magnetic attraction effect, the electromagnet adsorbs a strong magnet 31 arranged at the other end of the spring rod, the spring rod extends under the adsorption effect of the electromagnet, the baffle 4 is moved towards the direction of the operation hole 13 to the baffle 4, the operation hole 13 is completely covered by the baffle 4, the operation hole 13 is in a closed state, the grounding switch is not operable at the moment, the operation that the grounding switch cannot be opened and closed is guaranteed under the electrified condition of the switch cabinet, and the grounding switch is prevented from being mistakenly closed under the electrified condition of the cable side at the lower end of the switch cabinet.
Fig. 4 is a schematic diagram illustrating a conducting state of the anti-misengaging grounding switch device according to the present embodiment.
In addition, when the target switch cabinet cable is electrified, the target switch cabinet bus voltage transformer sends an electric signal to the second relay, the second relay is conducted to work, the normally open node of the second relay is closed, the alarm module 5 is conducted and works, the buzzer works and sends out alarm buzzing sound, and the target switch cabinet cable is electrified at present for warning operating personnel.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The anti-electrified mistaken-connection grounding knife brake device is characterized by comprising a base, a driving assembly, a transmission assembly and a baffle, wherein the base comprises a bottom plate and side plates arranged on two opposite sides of the bottom plate, the length of one side plate is larger than that of the other side plate, and an operation hole is formed in the position, extending out of the other side plate, of one side plate; the driving assembly is arranged on the other side plate, the input end of the driving assembly is connected with the output end of a to-be-installed switch cabinet bus voltage transformer, and the output end of the driving assembly is connected with the driving end of the transmission assembly; one end of the transmission assembly is fixedly arranged on the bottom plate, and the other end of the transmission assembly is connected with the baffle; when the driving assembly is in a non-electrified state, the baffle is arranged on one side of the operation hole close to the bottom plate; when the driving assembly is in a charged state, the transmission assembly operates and enables the baffle to be arranged on the operation hole in a covering mode.
2. The device according to claim 1, characterized in that: the driving assembly comprises a first relay and a motor, wherein the first relay is connected with a to-be-installed switch cabinet bus voltage transformer, a normally open node of the first relay is connected with the motor in series, and an output end of the motor is connected with a driving end of the transmission assembly as an output end of the driving assembly.
3. The device of claim 2, wherein the grounding switch device is capable of preventing the misconnection of electricity: the transmission assembly comprises a transmission rod or an electric push rod.
4. The device according to claim 1, characterized in that: the driving assembly comprises an electromagnet, and the transmission assembly comprises a spring rod; the electromagnet is arranged at one end, far away from the bottom plate, of the other side plate; the spring rod is fixedly arranged on the bottom plate at one end provided with a spring, the other end of the spring rod is connected with the baffle, and the other end of the spring rod is provided with a strong magnet.
5. The device according to any one of claims 1 to 4, characterized in that: the baffle is L-shaped.
6. The device according to claim 5, characterized in that: and door hinges are arranged on two sides of the base.
7. The device according to claim 6, characterized in that: the other side plate is provided with a cover plate.
8. The device according to claim 5, characterized in that: a limiting structure is arranged in the middle of the side plate.
9. The device according to claim 5, characterized in that: the device further comprises a second relay and an alarm module, wherein the second relay is connected with a switch cabinet bus voltage transformer to be installed, and a normally open node of the second relay is connected with the alarm module in series.
10. The device according to claim 9, characterized in that: the alarm module comprises an audible and visual alarm or a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223947.4A CN111341596A (en) | 2020-03-26 | 2020-03-26 | Prevent electrified mistake and close earthing knife-switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223947.4A CN111341596A (en) | 2020-03-26 | 2020-03-26 | Prevent electrified mistake and close earthing knife-switch device |
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| Publication Number | Publication Date |
|---|---|
| CN111341596A true CN111341596A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010223947.4A Pending CN111341596A (en) | 2020-03-26 | 2020-03-26 | Prevent electrified mistake and close earthing knife-switch device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689643A (en) * | 2021-08-16 | 2021-11-23 | 安徽龙和电力集团有限公司 | Totally closed looped netowrk cabinet maintenance is with preventing misconnection ground switch alarm device |
-
2020
- 2020-03-26 CN CN202010223947.4A patent/CN111341596A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689643A (en) * | 2021-08-16 | 2021-11-23 | 安徽龙和电力集团有限公司 | Totally closed looped netowrk cabinet maintenance is with preventing misconnection ground switch alarm device |
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