CN114628174A - Electrical switch cabinet self-adaptive unlocking device - Google Patents
Electrical switch cabinet self-adaptive unlocking device Download PDFInfo
- Publication number
- CN114628174A CN114628174A CN202210151225.1A CN202210151225A CN114628174A CN 114628174 A CN114628174 A CN 114628174A CN 202210151225 A CN202210151225 A CN 202210151225A CN 114628174 A CN114628174 A CN 114628174A
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- Prior art keywords
- adaptive
- sleeve
- self
- handle
- unlocking device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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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
- H02B11/02—Details
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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
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Patch Boards (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention belongs to the technical field of nuclear power stations, and particularly relates to an electric switch cabinet self-adaptive unlocking device which has a self-adaptive meshing function under the condition that unlocking parts at different positions of the same electric switch cabinet of a nuclear power station are not uniform in size and are special-shaped holes. When the self-adaptive sleeve head is inserted into the lock hole, the iron core on the sleeve head is extruded by the lock hole tongue piece, force is transmitted to the spring connected with the iron core, the spring is deformed, the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head under the action of a plurality of iron cores, and the effect of realizing complete engagement of the self-adaptive sleeve head and the lock hole of the device is achieved.
Description
Technical Field
The application belongs to the technical field of nuclear power stations, and particularly relates to an electric switch cabinet self-adaptive unlocking device.
Background
The stable operation of electrical switchgear is the most important guarantee of electric power system. In actual operation, the device often needs to be powered off and powered on. In order to prevent safety risk accidents of personnel or equipment, the electric switch cabinet is required to have a five-prevention locking function in the industry, and electric switch cabinet manufacturers often make the switch cabinet meet the requirements of five-prevention locking through modes such as mechanical structures, signal logics and the like. Under normal conditions, before operating the power transmission of electrical switchgear, operating personnel need manually to remove these "lockings", and owing to receive operating personnel height, strength, proficiency's restriction, operating personnel often need carry heavy instrument, and because the lockhole is the dysmorphism hole, can not once only accomplish the unblock operation.
Disclosure of Invention
The application aims at providing an electric switch cabinet self-adaptation unlocking device, and the problem that unlocking operation cannot be completed at one time due to the fact that unlocking parts of the same electric switch cabinet of a nuclear power station at different positions are different in size and are special-shaped holes is solved.
The technical scheme for realizing the purpose of the application is as follows:
the embodiment of the application provides an electric cubical switchboard self-adaptation unlocking device, the device includes: a self-adaptive sleeve head and a handle;
the self-adaptive sleeve head comprises a sleeve and a plurality of iron cores; the inner diameter of the sleeve is larger than the size of an unlocking part of the electrical switch cabinet; the iron cores are arranged in the sleeve side by side, one end of each iron core is fixed on the inner bottom wall of the sleeve through a spring, and the other end of each iron core is exposed out of the upper opening of the sleeve; when the spring is compressed, the other end of the iron core retracts into the sleeve;
one end of the handle is connected with the bottom of the sleeve.
Optionally, the side wall of the sleeve is provided with an observation hole.
Optionally, the handle includes: the connecting rod, the first direction adjusting sheet and the insulating rotating handle;
one end of the connecting rod is connected with the bottom of the sleeve, and the other end of the connecting rod is connected with one end of the insulating rotating handle through the first direction adjusting sheet;
the first direction adjusting sheet is used for changing the relative positions of the connecting rod and the insulating rotating handle.
Alternatively to this, the first and second parts may,
two ends of the first direction adjusting sheet are respectively provided with a first inserting hole, and two sides of the first inserting hole are provided with a first L-shaped through slotted hole for fixing a screw;
the other end of the connecting rod and one end of the insulating rotating handle are both provided with first inserting portions, and the first inserting portions are inserted into the first inserting holes and are fixed through screws and nuts at the first L-shaped through slot holes.
Optionally, the handle further includes: a second direction adjusting sheet and an adjustable force arm;
one end of the adjustable force arm is connected with the other end of the insulating rotating handle through the second direction adjusting sheet;
and the second direction adjusting sheet is used for changing the relative positions of the adjustable force arm and the insulating rotating handle.
Alternatively to this, the first and second parts may,
two ends of the second direction adjusting sheet are provided with second inserting holes, and two sides of each second inserting hole are provided with second L-shaped through slotted holes for fixing screws;
the other end of the adjustable force arm and one end of the insulating rotating handle are both provided with a second inserting portion, and the second inserting portion is inserted into the second inserting hole and fixed through a screw and a nut at the second L-shaped through slot hole.
Alternatively to this, the first and second parts may,
the other end of the adjustable force arm is connected with an insulated handle.
Optionally, the outer surfaces of the insulated rotating handle and the insulated handle are engraved with a knurl pattern.
Optionally, a storage cavity is formed in the side face of the connecting rod, and the storage cavity is sealed through a magnetic suction type storage cavity cover plate.
Alternatively to this, the first and second parts may,
the spring the iron core the first direction adjustment piece the second direction adjustment piece with the adjustable arm of force is the iron material, and the surface spraying has the anti-rust paint.
The beneficial technical effect of this application lies in:
(1) the self-adaptive unlocking device for the electrical switch cabinet, provided by the embodiment of the application, has the self-adaptive meshing function aiming at the condition that the sizes of the unlocking parts at different positions of the same electrical switch cabinet of a nuclear power station are not uniform and the unlocking parts are special-shaped holes. When the self-adaptive sleeve head is inserted into the lock hole, the iron core on the sleeve head is extruded by the lock hole tongue piece, force is transmitted to the spring connected with the iron core, the spring is deformed, the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head under the action of a plurality of iron cores, and the effect of realizing complete engagement of the self-adaptive sleeve head and the lock hole of the device is achieved. The effect of 'unlocking the whole lock by one key' is embodied.
(2) The embodiment of the application provides a pair of electric switch cabinet self-adaptation unlocking device, through adjusting the screw on the direction control piece, make this device present appointed form, let the user can easily shake into or shake out power station electric switch cabinet circuit breaker dolly with very comfortable mode, also can single ground connection switch operation that has great spring resistance with less strength completion, reach the purpose to power station electric switch cabinet unblock.
(3) The self-adaptive unlocking device of the electrical switch cabinet has the advantages of being waterproof and dustproof, simple in structure, small in size, free of maintenance, capable of changing the force arm as required and capable of reducing requirements on the height and physical strength of operators when the self-adaptive unlocking device is used. The insulating protection function is provided for the operating personnel, and the condition that the personnel get an electric shock due to the electric leakage of the equipment can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of an adaptive unlocking device for an electrical switchgear provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an adaptive sleeve in an adaptive unlocking device of an electrical switchgear according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another adaptive unlocking device for an electrical switchgear according to an embodiment of the present application.
In the figure:
1-self-adaptive heading; 11-sleeve, 12-iron core, 13-spring, 14-observation hole;
2-a handle; 21-a connecting rod, 22-a first direction adjusting sheet, 23-an insulating rotating handle, 24-a first L-shaped through slot hole and 25-a second direction adjusting sheet; 26-adjustable arm of force, 27-second L-shaped through slotted hole, 28-insulating handle, 29-storage cavity and 20-magnetic type storage cavity cover plate.
Detailed Description
In order to make the technical solutions in the embodiments of the present application more comprehensible to those skilled in the art, the following description will be made in detail and completely with reference to the accompanying drawings in the embodiments of the present application. It should be apparent that the embodiments described below are only some of the embodiments of the present application, and not all of them. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present application.
The self-adaptive unlocking device for the electrical switch cabinet, provided by the embodiment of the application, has the self-adaptive meshing function aiming at the condition that the sizes of unlocking parts at different positions of the same electrical switch cabinet of a nuclear power station are not uniform and are special-shaped holes. When the self-adaptive sleeve head is inserted into the lock hole, the iron core on the sleeve head is extruded by the lock hole tongue piece, force is transmitted to the spring connected with the iron core, the spring is deformed, the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head under the action of a plurality of iron cores, and the effect of realizing complete engagement of the self-adaptive sleeve head and the lock hole of the device is achieved. The effect of 'unlocking the whole lock by one key' is embodied.
Based on the above, in order to clearly and specifically explain the above advantages of the present application, the following description of the embodiments of the present application will be made with reference to the accompanying drawings.
Referring to fig. 1, the drawing is a schematic structural diagram of an adaptive unlocking device for an electrical switchgear according to an embodiment of the present application.
The embodiment of the application provides an electric cubical switchboard self-adaptation unlocking device includes: the self-adaptive sleeve head 1 and the handle 2;
as shown in fig. 2, the adaptive socket 1 includes a sleeve 11 and a plurality of iron cores 12; the inner diameter of the sleeve 11 is larger than the size of an unlocking part of the electrical switch cabinet; a plurality of iron cores 12 are arranged side by side inside the sleeve 11, one end of each iron core is fixed on the inner bottom wall of the sleeve 11 through a spring 13, and the other end of each iron core is exposed out of the upper opening of the sleeve 11; when the spring 13 is compressed, the other end of the iron core 12 retracts into the sleeve 11;
one end of the handle 2 is connected to the bottom of the sleeve 11.
In some possible implementation manners of the embodiment of the present application, the side wall of the sleeve 11 is provided with an observation hole 14 for observing the internal condition of the sleeve 11, so as to avoid generating a fault.
In some possible implementations of the embodiments of the present application, as shown in fig. 1, the handle 2 includes: a connecting rod 21, a first direction regulating sheet 22 and an insulating rotary handle 23;
one end of the connecting rod 21 is connected with the bottom of the sleeve 11, and the other end is connected with one end of the insulating rotating handle 23 through the first direction adjusting sheet 22;
and a first direction regulating blade 22 for changing the relative positions of the connecting rod 21 and the insulating stem 23. Fig. 1 and fig. 3 respectively show two different use states of an adaptive unlocking device for an electrical switchgear provided in an embodiment of the present application.
In a specific example, both ends of the first direction adjustment piece 22 are provided with first insertion holes, and both sides of the first insertion holes are provided with first L-shaped through slot holes 24 for fixing screws;
the other end of the connecting rod 21 and one end of the insulating stem 23 are each provided with a first insertion portion which is inserted into the first insertion hole and fixed by a screw and a nut at the first L-shaped through slot hole 24.
It will be appreciated that the angle between the connecting rod 21 and the insulating stem 23 can be varied by adjusting the position of the screw fastened to the first L-shaped through slot 24.
In some possible implementations of the embodiment of the present application, the handle 2 may further include: a second direction adjustment tab 25 and an adjustable force arm 26;
one end of the adjustable force arm 26 is connected with the other end of the insulating rotating handle 23 through a second direction adjusting sheet 25;
and a second direction adjusting sheet 25 for changing the relative position of the adjustable arm 26 and the insulating rotary handle 23.
In a specific example, both ends of the second direction adjustment piece 25 are provided with second insertion holes, and both sides of the second insertion holes are provided with second L-shaped through slot holes 27 for fixing screws;
the other end of the adjustable arm 26 and one end of the insulating stem 23 are each provided with a second insertion portion which is inserted into the second insertion hole and fixed by a screw and a nut at the second L-shaped through slot 27.
It can be understood that the handle 2 and the adaptive cuff 1 can be angled at 0 degree, 45 degree, 180 degree, 270 degree, etc. by adjusting the fastening position of the screw at the first L-shaped through slot hole 24 and/or the second L-shaped through slot hole 27. In practical applications, the specific positions of the first L-shaped through slot 24 and the second L-shaped through slot 27 can be set according to practical requirements, and are not listed here.
In some possible implementations of the embodiments of the present application, an insulated handle 28 is connected to the other end of the adjustable force arm 26. In one example, the outer surfaces of the insulated stem 23 and the insulated handle 28 are engraved with a knurled pattern to increase friction when held by the palm of the hand and prevent slippage.
In some possible implementation manners of the embodiment of the application, the storage cavity 29 is formed in the side face of the connecting rod 21, and the storage cavity 29 is sealed through the magnetic type storage cavity cover plate 20.
In practical application, the spring 13, the iron core 12, the first direction adjusting piece 22, the second direction adjusting piece 25 and the adjustable force arm 26 can be all made of iron materials, and the surfaces of the iron materials are sprayed with antirust paint.
In specific implementation, the device can be folded and stored by adjusting the screws on the first direction adjusting piece 22 and the second direction adjusting piece 25, so that the device can be conveniently put into a tool bag of an operator. Although the main structure of the device is made of ferrous materials, the storage cavity 29 and the adjustable force arm 26 can be hollow structures, and the device is light in weight and easy to carry.
The following describes a specific method for using the adaptive unlocking device for an electrical switchgear provided in the embodiments of the present application in detail with reference to a specific example.
Before an operator transmits power to the electric switch cabinet of the power station, the operator needs to unlock the electric switch cabinet and then can transmit power. The unlocking operation is divided into disconnecting the grounding disconnecting link and shaking the breaker trolley to a working position.
When the device is used for unlocking the grounding switch, the device is enabled to be in the state shown in the figure 3 by adjusting the screws on the first direction adjusting piece 22 and the second direction adjusting piece 25, in addition, an operator can adjust the adjustable force arm 26 according to the height and the strength, the device is enabled to reach the state meeting the comfortable operation of the operator, then one hand holds the insulating rotating handle 23, the other hand holds the insulating handle 28, the self-adaptive sleeve head 1 is inserted into the lock hole of the grounding switch on the electric switch cabinet, the lock hole is used as the circle center, the insulating handle 28 is rotated, and then the device is pulled out.
And then, the circuit breaker trolley needs to be unlocked, only the screws on the first direction adjusting sheet 22 and the second direction adjusting sheet 25 need to be adjusted firstly, so that the device is in the state shown in the figure 1, one hand holds the insulating rotating handle 23, the other hand holds the insulating handle 28, the self-adaptive sleeve head 1 is inserted into a circuit breaker trolley lock hole on the electrical switch cabinet, after the self-adaptive sleeve head 1 is meshed with the lock hole and rotates to the insulating rotating handle 23 to the number of fixed rings, the circuit breaker trolley can be conveyed to a working position, the device is pulled out, and then the unlocking operation of the circuit breaker trolley is completed. And then, completing unlocking operation of all the electrical switch cabinets before power transmission.
In particular, it is important to note that during the two unlocking operations, when the device is inserted into the hole lock, without paying attention to the position of the tongue of the hole lock, the plunger 12 on the adaptive sleeve head 1, after being pressed by the tongue, will transmit the pressing force to the spring 13, causing the spring 13 to compress. After being pressed by the tongue pieces, the iron cores 12 are finally meshed out of the shapes of the tongue pieces, so that the subsequent force of an operator can be transmitted to the hole lock to complete unlocking.
The embodiment of the application provides a pair of self-adaptation unlocking device of electrical switch cabinet has dirt-proof function, simple structure, and is small, light in weight. Its unique self-adaptation pullover 1 can easily dock various special-shaped lockholes, and adjustable structure can adapt to the requirement of the operating personnel of different heights, strength when carrying out the unblock operation. The device can be widely applied to unlocking operation of the electric switch cabinet of the power station, and has good popularization and application prospects. The ordinary technicians in the field can use the device on a zero basis without additional learning training, so that the learning threshold of a user is eliminated, and the device is easy to popularize. Meanwhile, the production cost is low, the popularity is high, and the economic value is high.
The present application has been described in detail with reference to the drawings and examples, but the present application is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. The prior art can be used for all the matters not described in detail in this application.
Claims (10)
1. An electrical switchgear self-adaptation unlocking device, characterized in that, the device includes: a self-adaptive sleeve head and a handle;
the self-adaptive sleeve head comprises a sleeve and a plurality of iron cores; the inner diameter of the sleeve is larger than the size of an unlocking part of the electrical switch cabinet; the iron cores are arranged in the sleeve side by side, one end of each iron core is fixed on the inner bottom wall of the sleeve through a spring, and the other end of each iron core is exposed out of the upper opening of the sleeve; when the spring is compressed, the other end of the iron core retracts into the sleeve;
one end of the handle is connected with the bottom of the sleeve.
2. The electrical switchgear self-adaptive unlocking device of claim 1 wherein the side wall of the sleeve is provided with a viewing hole.
3. The electrical switchgear adaptive unlocking device of claim 1, wherein the handle comprises: the connecting rod, the first direction adjusting sheet and the insulating rotating handle;
one end of the connecting rod is connected with the bottom of the sleeve, and the other end of the connecting rod is connected with one end of the insulating rotating handle through the first direction adjusting sheet;
the first direction adjusting sheet is used for changing the relative positions of the connecting rod and the insulating rotating handle.
4. The electrical switchgear adaptive unlocking device according to claim 3,
two ends of the first direction adjusting sheet are respectively provided with a first inserting hole, and two sides of the first inserting hole are provided with a first L-shaped through slotted hole for fixing a screw;
the other end of the connecting rod and one end of the insulating rotating handle are both provided with first inserting portions, and the first inserting portions are inserted into the first inserting holes and are fixed through screws and nuts at the first L-shaped through slot holes.
5. The electrical switchgear adaptive unlocking device of claim 3, wherein the handle further comprises: a second direction adjusting sheet and an adjustable force arm;
one end of the adjustable force arm is connected with the other end of the insulating rotating handle through the second direction adjusting sheet;
and the second direction adjusting sheet is used for changing the relative positions of the adjustable force arm and the insulating rotating handle.
6. The electrical switchgear adaptive unlocking apparatus according to claim 5,
two ends of the second direction adjusting sheet are provided with second inserting holes, and two sides of each second inserting hole are provided with second L-shaped through slotted holes for fixing screws;
the other end of the adjustable force arm and one end of the insulating rotating handle are both provided with a second inserting portion, and the second inserting portion is inserted into the second inserting hole and fixed through a screw and a nut at the second L-shaped through slot hole.
7. The electrical switchgear adaptive unlocking apparatus according to claim 5,
the other end of the adjustable force arm is connected with an insulated handle.
8. The electrical switchgear adaptive unlocking device of claim 7 wherein the outer surfaces of the insulated rotary handle and the insulated handle are engraved with a knurled pattern.
9. The self-adaptive unlocking device of the electrical switch cabinet according to claim 3, wherein a storage cavity is formed in the side face of the connecting rod, and the storage cavity is closed through a magnetic storage cavity cover plate.
10. Electrical switchgear adaptive unlocking device according to claim 5,
the spring the iron core the first direction adjustment piece the second direction adjustment piece with the adjustable arm of force is the iron material, and the surface spraying has the anti-rust paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210151225.1A CN114628174B (en) | 2022-02-15 | 2022-02-15 | Self-adaptive unlocking device of electrical switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210151225.1A CN114628174B (en) | 2022-02-15 | 2022-02-15 | Self-adaptive unlocking device of electrical switch cabinet |
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| CN114628174A true CN114628174A (en) | 2022-06-14 |
| CN114628174B CN114628174B (en) | 2023-08-15 |
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| CN202210151225.1A Active CN114628174B (en) | 2022-02-15 | 2022-02-15 | Self-adaptive unlocking device of electrical switch cabinet |
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| CN111370257A (en) * | 2020-03-23 | 2020-07-03 | 安瑞普电气有限公司 | Anti-misoperation type operating handle for load switch/isolating switch and using method thereof |
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| CN213025885U (en) * | 2020-08-28 | 2021-04-20 | 国网江苏省电力有限公司镇江供电分公司 | 10kV cubical switchboard ground connection plug-in strip unlocking device |
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