CN114628174B - Self-adaptive unlocking device of electrical switch cabinet - Google Patents
Self-adaptive unlocking device of electrical switch cabinet Download PDFInfo
- Publication number
- CN114628174B CN114628174B CN202210151225.1A CN202210151225A CN114628174B CN 114628174 B CN114628174 B CN 114628174B CN 202210151225 A CN202210151225 A CN 202210151225A CN 114628174 B CN114628174 B CN 114628174B
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- Prior art keywords
- adaptive
- sleeve
- direction adjusting
- adjusting piece
- handle
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Classifications
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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
-
- 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
-
- 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 application belongs to the technical field of nuclear power stations, and particularly relates to a self-adaptive unlocking device for an electrical switch cabinet, which has a self-adaptive occlusion function aiming at the situation that unlocking parts at different positions of the same electrical switch cabinet of the nuclear power station are non-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, the force is transmitted to the spring connected with the iron core to cause the spring to deform, and the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head through the functions of a plurality of iron cores, so that the effect of completely occluding 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 a self-adaptive unlocking device for an electrical switch cabinet.
Background
The stable operation of the electrical switch cabinet is the most important guarantee of the power system. In actual operation, the equipment often needs to perform power-off and power-on operations. In order to prevent personnel or equipment from safety risk accidents, the industry requires that an electrical switch cabinet has a five-prevention locking function, and electrical switch cabinet manufacturers often make the switch cabinet achieve the five-prevention locking requirement through a mechanical structure, signal logic and other modes. Under normal conditions, operators need to manually release the locking before operating the electrical switch cabinet to transmit power, and due to the limitation of the height, strength and proficiency of the operators, the operators often need to carry heavy tools, and due to the fact that the lock hole is a special-shaped hole, the unlocking operation cannot be completed at one time.
Disclosure of Invention
The application aims to provide a self-adaptive unlocking device for an electrical switch cabinet, which solves the problems that unlocking parts at different positions of the same electrical switch cabinet of a nuclear power station are non-uniform in size and are special-shaped holes, and unlocking operation cannot be completed at one time.
The technical scheme for realizing the purpose of the application comprises the following steps:
the embodiment of the application provides a self-adaptive unlocking device of an electrical switch cabinet, which comprises the following components: 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 in parallel, 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 from an upper opening of the sleeve; when the spring is compressed, the other end of the iron core is retracted into the sleeve;
one end of the handle is connected with the bottom of the sleeve.
Optionally, an observation hole is formed in the side wall of the sleeve.
Optionally, the handle includes: the connecting rod, the first direction adjusting piece 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 piece;
the first direction adjusting piece is used for changing the relative position of the connecting rod and the insulating rotating handle.
Alternatively to this, the method may comprise,
the two ends of the first direction adjusting piece are provided with first inserting holes, and two sides of the first inserting holes are provided with first L-shaped through slotted holes for fixing screws;
the other end of the connecting rod and one end of the insulating rotary handle are respectively provided with a first insertion part, and the first insertion parts are inserted into the first insertion holes and fixed through screws and nuts at the positions of the first L-shaped through slotted holes.
Optionally, the handle further includes: a second direction adjustment tab and an adjustable arm of force;
one end of the adjustable force arm is connected with the other end of the insulation rotating handle through the second direction adjusting piece;
the second direction adjusting piece is used for changing the relative position of the adjustable force arm and the insulating rotating handle.
Alternatively to this, the method may comprise,
the two ends of the second direction adjusting piece are provided with second inserting holes, and two sides of the second inserting holes 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 rotary handle are respectively provided with a second insertion part, and the second insertion parts are inserted into the second insertion holes and are fixed through screws and nuts at the positions of the second L-shaped through slotted holes.
Alternatively to this, the method may comprise,
the other end of the adjustable force arm is connected with an insulating handle.
Optionally, the outer surfaces of the insulating handle and the insulating stem are engraved with a knurling pattern.
Optionally, the storing chamber has been seted up to the side of connecting rod, the storing chamber is closed through magnetism suction type storing chamber apron.
Alternatively to this, the method may comprise,
the spring, the iron core, the first direction adjusting piece, the second direction adjusting piece and the adjustable arm of force are all made of iron materials, and rust-proof paint is sprayed on the surfaces of the spring, the iron core, the first direction adjusting piece, the second direction adjusting piece and the adjustable arm of force.
The beneficial technical effects of the application are as follows:
(1) The self-adaptive unlocking device for the electrical switch cabinet provided by the embodiment of the application has a self-adaptive occlusion function aiming at the situation that unlocking parts at different positions of the same electrical switch cabinet of a nuclear power station are non-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, the force is transmitted to the spring connected with the iron core to cause the spring to deform, and the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head through the functions of a plurality of iron cores, so that the effect of completely occluding 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 reflected.
(2) According to the self-adaptive unlocking device for the electric switch cabinet, provided by the embodiment of the application, the designated form of the device is presented by adjusting the screw on the direction adjusting piece, so that a user can easily shake in or out of the electric switch cabinet breaker trolley of the power station in a very comfortable mode, and the grounding switch operation with larger spring resistance can be completed by a single person with smaller force, so that the purpose of unlocking the electric switch cabinet of the power station is achieved.
(3) The self-adaptive unlocking device for the electrical switch cabinet has the functions of water resistance and dust resistance, is simple in structure, small in size and free of maintenance, can change the force arm according to the requirement, and reduces the requirement on the height and the physical strength of operators when the self-adaptive unlocking device is used. The electric shock protection device has an insulation protection function on operators, and can prevent the situation that the operators get electric shock due to equipment leakage.
Drawings
Fig. 1 is a schematic structural diagram of an adaptive unlocking device for an electrical switch cabinet according to 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 switch cabinet according to an embodiment of the present application;
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 sleeve head; 11-sleeve, 12-iron core, 13-spring, 14-observation hole;
2-a handle; 21-connecting rods, 22-first direction adjusting pieces, 23-insulating rotating handles, 24-first L-shaped through slots and 25-second direction adjusting pieces; 26-adjustable arm of force, 27-second L type runs through the slotted hole, 28-insulating handle, 29-storing chamber, 20-magnetism are inhaled the storing chamber apron.
Detailed Description
In order to enable those skilled in the art to better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the embodiments described below are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are within the scope of the present application based on the embodiments described herein.
The self-adaptive unlocking device for the electrical switch cabinet provided by the embodiment of the application has a self-adaptive occlusion function aiming at the situation that unlocking parts at different positions of the same electrical switch cabinet of a nuclear power station are non-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, the force is transmitted to the spring connected with the iron core to cause the spring to deform, and the shape of the lock hole tongue piece can be printed on the iron core of the self-adaptive sleeve head through the functions of a plurality of iron cores, so that the effect of completely occluding 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 reflected.
Based on the foregoing, in order to clearly and specifically describe the above advantages of the present application, a specific embodiment of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, the structure of an adaptive unlocking device for an electrical switch cabinet according to an embodiment of the present application is shown.
The embodiment of the application provides a self-adaptive unlocking device for an electrical switch cabinet, which comprises the following components: an adaptive sleeve head 1 and a handle 2;
as shown in fig. 2, the adaptive sleeve head 1 includes a sleeve 11 and a plurality of cores 12; the inner diameter of the sleeve 11 is larger than the unlocking part size of the electrical switch cabinet; a plurality of iron cores 12 are arranged in parallel in 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 from an upper opening of the sleeve 11; when the spring 13 is compressed, the other end of the core 12 is retracted into the sleeve 11;
one end of the handle 2 is connected with the bottom of the sleeve 11.
In some possible implementations of the embodiment of the present application, the side wall of the sleeve 11 is provided with a viewing hole 14 for viewing the internal condition of the sleeve 11, so as to avoid occurrence of 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 adjusting piece 22, and an insulating stem 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 rotary handle 23 through the first direction adjusting piece 22;
a first direction adjusting piece 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 switch cabinet according to an embodiment of the present application.
In a specific example, first insertion holes are formed at both ends of the first direction adjustment sheet 22, and first L-shaped through slots 24 for fixing screws are formed at both sides of the first insertion holes;
the other end of the connecting rod 21 and one end of the insulating stem 23 are provided with first insertion portions which are inserted into the first insertion holes and fixed by screws and nuts at the first L-shaped through slots 24.
It will be appreciated that the angle between the connecting rod 21 and the insulating stem 23 can be varied by adjusting the tightening position of the screw at the first L-shaped through slot 24.
In some possible implementations of the embodiments of the present application, the handle 2 may further include: a second direction adjustment tab 25 and an adjustable moment arm 26;
one end of the adjustable arm 26 is connected with the other end of the insulation rotating handle 23 through a second direction adjusting piece 25;
a second direction adjusting piece 25 for changing the relative positions of the adjustable arm 26 and the insulating stem 23.
In a specific example, the second direction adjusting tab 25 is provided with second insertion holes at both ends, and second L-shaped through slots 27 for fixing screws are provided at both sides of the second insertion holes;
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 will be appreciated that the handle 2 and the adaptive sleeve head 1 may be angled at 0 degrees, 45 degrees, 180 degrees, 270 degrees, etc. by adjusting the fastening position of the screw at the first L-shaped through slot 24 and/or the second L-shaped through slot 27. In practical applications, the specific positions of the first L-shaped through slot 24 and the second L-shaped through slot 27 may be set according to practical needs, which are not listed here.
In some possible implementations of the embodiment of the application, an insulated handle 28 is connected to the other end of the adjustable arm 26. In one example, the outer surfaces of the insulating handle 23 and the insulating handle 28 are engraved with a knurling pattern to increase friction when held by the hand to prevent slippage.
In some possible implementations of the embodiments of the present application, the storage cavity 29 is formed on the side surface of the connecting rod 21, and the storage cavity 29 is closed by the magnetic 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 arm 26 may all be made of iron materials, and the surfaces of the iron materials are sprayed with antirust paint.
In the 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 is convenient to put into a tool bag of an operator. Although the device is mainly made of iron, the storage cavity 29 and the adjustable arm 26 can be hollow, and the device is light in weight and easy to carry.
The following describes in detail a specific use method of the adaptive unlocking device for an electrical switch cabinet according to the embodiment of the application with reference to a specific example.
Before an operator performs power transmission operation on the power station electrical switch cabinet, the operator needs to perform unlocking operation on the electrical switch cabinet, and then the operator can perform power transmission operation. Unlocking operation is divided into disconnecting a grounding disconnecting link and swinging a breaker trolley to a working position.
When the device is used for unlocking the grounding disconnecting link, the device is in the state of figure 3 by adjusting the screws on the first direction adjusting piece 22 and the second direction adjusting piece 25, an operator can adjust the adjustable arm of force 26 according to the height and the strength, the device can achieve the state of 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 a lock hole of the grounding disconnecting link on the electrical switch cabinet, the lock hole is used as the center of a circle, the insulating handle 28 is rotated, and then the device is pulled out.
Then, the circuit breaker trolley needs to be unlocked, the first direction adjusting piece 22 and the second direction adjusting piece 25 are adjusted by the screws, so that the device is in the state of fig. 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 the circuit breaker trolley locking hole on the electric switch cabinet, after the self-adaptive sleeve head 1 is meshed with the locking hole, the circuit breaker trolley can be conveyed to the working position after the insulating rotating handle 23 is rotated to a fixed number of turns, and the unlocking operation of the circuit breaker trolley is completed after the device is pulled out. Thus, unlocking operation before power transmission of all the electrical switch cabinets is completed.
In particular, it should be emphasized that, during the above two unlocking operations, when the device is inserted into the hole lock, the position of the hole lock tab is not required to be concerned, and the iron core 12 on the adaptive sleeve head 1 is extruded by the tab, and then the extrusion force is transmitted to the spring 13, so that the spring 13 is compressed. After being extruded by the tongue pieces, the iron cores 12 are finally meshed with the shape of the tongue pieces, so that the force of a subsequent operator can be transmitted to the hole lock to complete unlocking.
The self-adaptive unlocking device for the electrical switch cabinet has the dustproof function, and is simple in structure, small in size and light in weight. The unique self-adaptive sleeve head 1 can be easily abutted to various special-shaped lock holes, and can adapt to the requirements of operators with different heights and forces on unlocking operation. The device can be widely applied to unlocking operation of the power station electrical switch cabinet, and has better popularization and application prospects. The device can be used on a zero basis without additional learning training by a person of ordinary skill in the art, 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 good.
The present application has been described in detail with reference to the drawings and the embodiments, but the present application is not limited to the embodiments described above, 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 application may be practiced otherwise than as specifically described.
Claims (5)
1. An adaptive unlocking device for an electrical switchgear, the device comprising: 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 in parallel, 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 from an upper opening of the sleeve; when the spring is compressed, the other end of the iron core is retracted into the sleeve;
one end of the handle is connected with the bottom of the sleeve;
the handle, comprising: the connecting rod, the first direction adjusting piece 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 piece;
the first direction adjusting piece is used for changing the relative positions of the connecting rod and the insulating rotating handle;
the two ends of the first direction adjusting piece are provided with first inserting holes, and two sides of the first inserting holes are provided with first L-shaped through slotted holes for fixing screws;
the other end of the connecting rod and one end of the insulating rotary handle are respectively provided with a first insertion part, and the first insertion parts are inserted into the first insertion holes and are fixed by screws and nuts at the first L-shaped through slotted holes;
the handle further comprises: a second direction adjustment tab and an adjustable arm of force;
one end of the adjustable force arm is connected with the other end of the insulation rotating handle through the second direction adjusting piece;
the second direction adjusting piece is used for changing the relative positions of the adjustable force arm and the insulating rotating handle;
the two ends of the second direction adjusting piece are provided with second inserting holes, and two sides of the second inserting holes 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 rotary handle are respectively provided with a second insertion part, and the second insertion parts are inserted into the second insertion holes and are fixed by screws and nuts at the second L-shaped through slotted holes;
the other end of the adjustable force arm is connected with an insulating handle.
2. The adaptive unlocking device of an electrical switchgear of claim 1, wherein the side wall of the sleeve is provided with an observation hole.
3. The adaptive unlocking device of an electrical switchgear according to claim 1, wherein the outer surfaces of the insulating handle and the insulating stem are engraved with a knurled pattern.
4. The adaptive unlocking device of an electrical switch cabinet according to claim 1, 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.
5. The adaptive unlocking device of an electrical switch cabinet according to claim 1, wherein the spring, the iron core, the first direction adjusting piece, the second direction adjusting piece and the adjustable arm of force are all made of iron materials, and rust-proof paint is sprayed on the surfaces of the spring, the iron core, the first direction adjusting piece, the second direction adjusting piece and the adjustable arm of force.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114628174A CN114628174A (en) | 2022-06-14 |
| CN114628174B true CN114628174B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210151225.1A Active CN114628174B (en) | 2022-02-15 | 2022-02-15 | Self-adaptive unlocking device of electrical switch cabinet |
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| CN (1) | CN114628174B (en) |
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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 |
| CN111342378A (en) * | 2020-04-01 | 2020-06-26 | 江苏核电有限公司 | Temporary unlocking tool and unlocking method for insulation measurement of switch cabinet |
| 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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| CN114628174A (en) | 2022-06-14 |
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