CN109378247B - 10kV anti-misoperation disconnecting switch lock - Google Patents
10kV anti-misoperation disconnecting switch lock Download PDFInfo
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- CN109378247B CN109378247B CN201811569250.1A CN201811569250A CN109378247B CN 109378247 B CN109378247 B CN 109378247B CN 201811569250 A CN201811569250 A CN 201811569250A CN 109378247 B CN109378247 B CN 109378247B
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- 239000004677 Nylon Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229920001778 nylon Polymers 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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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
Abstract
The application discloses a 10kV anti-misoperation isolating switch lock which comprises a screwing screw, a fixed sleeve clamped in the middle of the screwing screw, an upper sleeve screwed on the upper part of the screwing screw, a lower pile head screwed on the side part of the fixed sleeve and an upper pile head screwed on the side part of the upper sleeve, wherein the lower pile head is connected with the upper sleeve through a screw; the lower part of the screwing screw rod is movably connected with the upper end of the pull rod. The application limits the operation of the moving contact, adds a lock on the closing and separating switch procedure, and ensures the moving contact to be vertical to the ground and the maximum electric safety distance to the static contact. The common pull rod is used for operation, the structure is simple, the performance is reliable, and the disassembly and the assembly are convenient.
Description
Technical Field
The application relates to the technical field of power equipment of distribution networks, in particular to a 10kV anti-misoperation isolating switch lock.
Background
The isolating switch is a switching device which is mainly used for isolating a power supply, switching operation and switching on and off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have an insulation distance and an obvious disconnection mark which meet the specified requirements; in the closed position, the switching device is capable of carrying both current under normal loop conditions and current under abnormal conditions (e.g., short circuit) for a prescribed period of time. The high-voltage isolating switch is generally used as a high-voltage isolating switch, namely, the isolating switch with the rated voltage of more than 1kV, has a simple working principle and structure, but has high requirements on working reliability due to large use amount, and has larger influence on the design, establishment and safe operation of power substations and power plants. The isolating switch has the main characteristics of no arc extinguishing capability and can only switch on and switch off the circuit under the condition of no load current.
The isolating switch has important function in the power distribution network construction and maintenance process:
1. after the brake is separated, a reliable insulation gap is established, and equipment or a line to be overhauled is separated from a power supply by an obvious disconnection point, so that the safety of overhauling personnel and equipment is ensured.
2. And switching the circuit according to the operation requirement.
3. The device can be used for separating and combining small currents in lines, such as charging currents of a sleeve, a bus, a connector and a short cable, capacitance currents of a switch voltage-sharing capacitor, circulation current during double bus switching, exciting currents of a voltage transformer and the like.
4. According to the specific conditions of different structure types, the device can be used for dividing and integrating the no-load exciting current of the constant-volume transformer.
The isolating switch is mainly applicable to low-voltage terminal power distribution systems of residences, buildings and the like in low-voltage equipment. The main functions are as follows: the circuit is disconnected and connected without load.
1. For isolating the power supply, disconnecting the high voltage service equipment from the live equipment with a clearly visible disconnection point therebetween.
2. The isolating switch is matched with the circuit breaker, and switching operation is carried out according to the requirement of the system operation mode so as to change the system operation wiring mode.
3. To turn on or off the low current circuit.
A group of isolating switches are generally arranged on the front surface and the rear surface of the circuit breaker respectively, and the purpose is to isolate the circuit breaker from a power supply so as to form obvious disconnection points; because the original breaker adopts an oil breaker, the oil breaker needs to be overhauled frequently, and obvious disconnection points are arranged on two sides of the oil breaker so as to be beneficial to overhauling; in general, the outlet cabinet supplies power downwards from the upper bus through the switch cabinet, and a group of isolating switches are needed in front of the circuit breaker to be isolated from the power supply, but sometimes, the back of the circuit breaker also has the possibility of incoming calls, such as the back feeding of other loops, the back feeding of capacitors and other devices, so that a group of isolating switches are needed in back of the circuit breaker.
The isolating switch is mainly used for reliably isolating the part needing power failure from the electrified part in the high-voltage power distribution device so as to ensure the safety of maintenance work. The contact of the isolating switch is totally exposed in the air and has obvious disconnection points, and the isolating switch is not provided with an arc extinguishing device, so that the isolating switch cannot be used for cutting off load current or short-circuit current, otherwise under the action of high voltage, the disconnection points generate strong electric arcs, are difficult to self-extinguish, and even can cause flashover (relative ground or inter-phase short circuit), burn equipment and endanger personal safety, thus being a serious accident of the so-called load pull isolating switch. The disconnector may also be used to perform switching operations of certain circuits to change the way the system is operating. For example: in a dual bus circuit, an isolating switch may be used to switch the circuit in operation from one bus to the other. And at the same time, may also be used to operate some low current circuits.
When the electrical equipment is overhauled, an electrical interval is provided, and the electrical interval is a obviously visible disconnection point so as to ensure the personal safety of maintenance personnel. The disconnector cannot operate with load: the device cannot operate with rated load or large load, cannot split and combine load current and short-circuit current, but can operate with small load and no-load lines with an arc extinguishing chamber. During a general power transmission operation: firstly closing an isolating switch, and then closing a breaker or a load switch; during power-off operation: the circuit breaker or the load switch is opened firstly, and then the isolating switch is opened. The rated voltage, rated current, dynamic stable current, thermal stable current and the like of the electric equipment are required to meet the requirements of the application occasions. The isolating switch has obvious breaking point to ensure the safety of maintainer, and has no special arc extinguishing device to cut off the load current and short circuit current, so that the isolating switch must be operated in case of breaking circuit.
According to different voltage grades, the isolating hanger is divided into a low-voltage isolating switch and a high-voltage isolating switch, and the isolating switch control wiring is locked with the corresponding circuit breaker, so that the on-load pulling and closing of the isolating switch can be effectively prevented. However, in operating the bus-side disconnector and the line-side disconnector, there is a possibility that the operation sequence is reversed due to human factors, which is not allowed by the operation principle of the switch and the disconnecting link, and is one of the causes of accidents in the power system. In order to prevent the operation sequence of the isolating switch from reversing, at present, the isolating switch is operated by adopting a common insulating pull rod for power failure maintenance of a distribution line for factories and stations which do not adopt a program lock to prevent errors, after the high-voltage isolating switch is pulled open, a moving contact of the switch is generally not electrified, and after the high-voltage isolating switch is pulled open, the moving contact is downward and vertical to the ground and keeps the maximum operation distance with a static contact. The distribution line isolating switch is not provided with an electrical locking measure for preventing the misoperation, the movable contact of the switch is not provided with a reliable technical measure for preventing the misoperation, under the conditions of strong wind, thick fog and manual misoperation, if the line switch is not disconnected, the potential safety hazard that the power is reversely transmitted to a power failure maintenance line through the high-voltage isolating switch, if the distribution line isolating switch is used for maintenance, the maintenance equipment is suddenly powered on once the two side isolating switches are opened by misoperation, and the safety risk exists.
Disclosure of Invention
The application aims to provide a 10kV anti-misoperation isolating switch lock which is high in safety and simple to operate.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
a10 kV anti-misoperation isolating switch lock comprises a screw, a fixed sleeve clamped in the middle of the screw, an upper sleeve screwed on the upper part of the screw, a lower pile head screwed on the side part of the fixed sleeve and an upper pile head screwed on the side part of the upper sleeve;
the lower part of the screwing screw rod is movably connected with the upper end of the pull rod.
As a further improvement of the application, the screwing screw comprises a connector, a T-shaped groove arranged at the side part of the connector, a clamping column fixed at the top of the connector and a threaded rod fixed at the top of the clamping column; the connector, the clamping column and the threaded rod are integrally formed.
As a further improvement of the application, the grooves comprise vertical grooves and transverse grooves which are arranged at the side parts of the connectors, and the vertical grooves and the transverse grooves are communicated;
the pull rod comprises a fixed seat, an insulating rod fixedly connected to the bottom of the fixed seat and an inverted L-shaped rod head fixedly connected to the top of the fixed seat;
the vertical rod of the inverted L-shaped rod head is clamped in the vertical groove, and the transverse rod of the inverted L-shaped rod head is positioned in the transverse groove.
As a further improvement of the application, the width of the notch of the vertical groove is smaller than the diameter of the inverted L-shaped club head, the width of the groove bottom inside the vertical groove is larger than the diameter of the inverted L-shaped club head, and the width of the groove of the horizontal groove is larger than the diameter of the inverted L-shaped club head.
As a further improvement of the application, the fixing sleeve comprises a fixing sleeve body sleeved outside the clamping post and a threaded hole formed in the side part of the fixing sleeve body.
As a further improvement of the application, the upper sleeve comprises an upper sleeve body which is connected with the threaded rod in a threaded way and a threaded connection hole which is formed in the side part of the upper sleeve body, and the inner side wall of the upper sleeve body is provided with an inner connecting thread which is matched with the threaded rod in a threaded way.
As a further improvement of the application, the lower pile head comprises a lower pile head body and a threaded fixing rod fixed at the end part of the lower pile head body, and the threaded fixing rod is in threaded connection with the threaded hole.
As a further improvement of the application, the upper pile head comprises an upper pile head body and a threaded connecting rod fixed at the end part of the upper pile head body, and the threaded connecting rod is in threaded connection with the threaded connecting hole.
As a further improvement of the application, the screwing screw, the fixing sleeve, the lower pile head, the upper sleeve and the upper pile head are all made of insulating nylon materials.
As a further improvement of the application, the insulating material nylon material is polyamide PA66 material.
Compared with the prior art, the application has the following beneficial effects:
the 10kV anti-misoperation isolating switch lock is reasonable in structure and convenient to use, is manufactured by processing nylon polyamide PA66 with excellent insulating property, and utilizes the screw rod and screw tightening and fixing principle, so that an operator can conveniently fix achievements between an isolating switch moving contact and an isolating wire clamp by using a pull rod during installation, and the effects of anti-misoperation, limiting the position of the isolating switch moving contact and preventing misoperation are achieved. In order to prevent the 10kV isolating switch from being turned on to a power failure overhauling line in a strong wind and dense fog environment and misjudgment by personnel, a common insulating pull rod is used for screwing and fixing the device, and the operation of a moving contact of the isolating switch is limited, so that the purpose of preventing misswitching is achieved, and the device is an effective safety technical measure for preventing the misswitching of the isolating switch. The application limits the operation of the moving contact and adds a lock on the closing and isolating switch procedure. And the moving contact is vertical to the ground and the maximum electric safety distance to the fixed contact is ensured. The common pull rod is used for operation, the structure is simple, the performance is reliable, and the disassembly and the assembly are convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of the structure of the screw of the present application;
FIG. 3 is a schematic view of the structure of the tie rod of the present application;
FIG. 4 is a schematic view of the structure of the fixing sleeve of the present application;
FIG. 5 is a schematic view of the structure of the lower pile head of the present application;
FIG. 6 is a schematic view of the upper sleeve of the present application;
fig. 7 is a schematic structural view of the upper pile head of the present application.
In the accompanying drawings: the device comprises a screw rod 1, a connector 11, a clamping column 12, a threaded rod 13, a transverse groove 14, a vertical groove 15, a pull rod 2, an insulating rod 21, a fixed seat 22, an inverted L-shaped rod head 23, a fixed sleeve 3, a fixed sleeve body 31, a threaded hole 32, a lower pile head 4, a lower pile head body 41, a threaded fixed rod 42, an upper sleeve 5, an upper sleeve body 51, an inner connecting thread 52, a threaded connecting hole 53, an upper pile head 6, an upper pile head 61 and a threaded connecting rod 62.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
1-7, a 10kV anti-misoperation isolating switch lock comprises a screwing screw 1, a fixed sleeve 3 clamped in the middle of the screwing screw 1, an upper sleeve 5 in threaded connection with the upper part of the screwing screw 1, a lower pile head 4 in threaded connection with the side part of the fixed sleeve 3 and an upper pile head 6 in threaded connection with the side part of the upper sleeve 5; the lower part of the screwing screw rod 1 is movably connected with the upper end of the pull rod 2. The screwing screw 1 comprises a connector 11, a T-shaped groove formed in the side part of the connector 11, a clamping column 12 fixed at the top of the connector 11 and a threaded rod 13 fixed at the top of the clamping column 12; the connector 11, the clamping post 12 and the threaded rod 13 are integrally formed. The grooves comprise vertical grooves 15 and transverse grooves 14 which are formed in the side parts of the connectors 11, and the vertical grooves 15 are communicated with the transverse grooves 14; the pull rod 2 comprises a fixed seat 22, an insulating rod 21 fixedly connected to the bottom of the fixed seat 22 and an inverted L-shaped rod head 23 fixedly connected to the top of the fixed seat 22; the vertical rod of the inverted L-shaped rod head 23 is clamped in the vertical groove 15, and the transverse rod of the inverted L-shaped rod head 23 is positioned in the transverse groove 14.
The width of the notch of the vertical groove 15 is smaller than the diameter of the inverted L-shaped rod head 23, the width of the groove bottom inside the vertical groove 15 is larger than the diameter of the inverted L-shaped rod head 23, and the width of the groove of the horizontal groove 14 is larger than the diameter of the inverted L-shaped rod head 23. The fixing sleeve 3 comprises a fixing sleeve body 31 sleeved outside the clamping post 12 and a threaded hole 12 formed in the side portion of the fixing sleeve body 31.
The upper sleeve 5 comprises an upper sleeve body 51 which is in threaded connection with the threaded rod 13 and a threaded connection hole 53 which is formed in the side part of the upper sleeve body 51, and an inner connecting thread 52 which is in threaded match with the threaded rod 13 is arranged on the inner side wall of the upper sleeve body 51.
The lower pile head 4 comprises a lower pile head body 41 and a threaded fixing rod 42 fixed at the end part of the lower pile head body 41, and the threaded fixing rod 42 is in threaded connection with the threaded hole 12. The upper pile head 6 comprises an upper pile head body 61 and a threaded connecting rod 62 fixed at the end part of the upper pile head body 61, and the threaded connecting rod 62 is in threaded connection with the threaded connecting hole 53.
The screwing screw 1, the fixing sleeve 3, the lower pile head 4, the upper sleeve 5 and the upper pile head 6 are all made of insulating nylon materials. The insulating material nylon material is polyamide PA66 material.
Specifically, the screw 1, the fixed sleeve 3, the lower pile head 4, the upper sleeve 5 and the upper pile head 6 are made of nylon rods which are insulating materials, polyamide PA66 is specifically selected, and according to the test standard of live working insulating tools and instruments, the application is subjected to insulation withstand voltage electric test in sections, the test voltage is 100kV/1 min and 45kV/1 min, and the indexes such as no overheat, deformation, breakdown and leakage current are in accordance with the safety standard.
The screw 1 is connected with the upper sleeve 5, the fixed sleeve 3 is connected with the lower pile head 4 and the upper sleeve 5 is connected with the upper pile head 6 through screw holes, so that the stability is high.
The structural size of the screwing screw 1 is ∅ multiplied by 200 or ∅ multiplied by 200, the smallest opening between a movable contact of an isolating switch and an isolating wire clamp is 350mm, and the largest opening is 450mm.
The threads of the threaded rod 13, the threaded hole 32, the internal thread 33, the threaded fixing rod 42, the internal connecting thread 52, the threaded connecting hole 53 and the threaded connecting rod 62 are all long threads with four steps of machining precision, and the machining process and the control specification are executed according to relevant national standards of metal workpieces.
The 10kV anti-misoperation isolating switch lock comprises the following using steps:
firstly, the isolating switch is pulled open, and the moving contact is kept vertical to the ground.
The anti-misoperation disconnecting switch lock is assembled according to the requirement, and the specific requirement is that the upper pile head and the lower pile head are in the same direction, and the distance between the upper pile head and the lower pile head is consistent with the distance between the movable contact pull ring of the disconnecting switch and the electric connection part of the disconnecting switch in actual use.
The inverted L-shaped rod head at the end part of the pull rod enters a groove below the screwing screw 1 to be clamped.
The pull rod is used for sending the anti-misoperation isolating switch lock to the isolating switch position where the line is pulled open, the upper pile head 6 is put on the electrical connection position of the isolating switch, and the lower pile head 4 enters the pull ring of the moving contact.
The pull rod is rotated clockwise, so that the anti-misoperation isolating switch lock locks the isolating switch, and the pull rod is rotated anticlockwise when the anti-misoperation isolating switch lock is disassembled.
Before the anti-misoperation isolating switch lock is used, appearance inspection is carried out, no crack or damage exists, and the damaged anti-misoperation isolating switch lock is forbidden to be used;
the anti-misoperation disconnecting switch lock is subjected to one-time preventive test for half a year, so that the electrical property and the mechanical property of the anti-misoperation disconnecting switch lock are good, and the anti-misoperation disconnecting switch lock which is not in the test period range cannot be used.
The 10kV anti-misoperation disconnecting switch lock is proved to have simple structure, reliable performance and flexible operation through field application, the cost is low, the total of 400 elements of nylon rod, 600 elements of processing and manufacturing and 300 elements of test and debugging is 1300 elements, and the anti-misoperation disconnecting switch lock is suitable for popularization and application in 10kV power distribution network power failure overhaul operation and preventing the disconnecting switch from being mistakenly electrified to overhaul line work.
The 10kV anti-misoperation reasonable switch lock utilizes the screw tightening self-locking principle to limit the operation of the movable contact of the switch, and a lock is added on the closing isolating switch procedure, so that the potential safety hazard of reverse power transmission to a power failure line caused by misoperation of the switch is effectively eliminated. The application has simple and reasonable structure, reliable electrical insulation performance, simple and flexible loading and unloading operation and can be completed by using a common brake pulling rod. The application has great economic benefit when being popularized and applied.
The above described embodiments are only preferred examples of the application and are not exhaustive of the possible implementations of the application. Any obvious modifications thereof, which would be apparent to those skilled in the art without departing from the principles and spirit of the present application, should be considered to be included within the scope of the appended claims.
Claims (6)
1. A10 kV anti-misoperation isolating switch lock is characterized in that: the pile head comprises a screwing screw (1), a fixed sleeve (3) clamped in the middle of the screwing screw (1), an upper sleeve (5) in threaded connection with the upper part of the screwing screw (1), a lower pile head (4) in threaded connection with the side part of the fixed sleeve (3) and an upper pile head (6) in threaded connection with the side part of the upper sleeve (5);
the lower part of the screwing screw rod (1) is movably connected with the upper end of the pull rod (2);
the screwing screw (1) comprises a connector (11), a T-shaped groove formed in the side part of the connector (11), a clamping column (12) fixed at the top of the connector (11) and a threaded rod (13) fixed at the top of the clamping column (12); the connector (11), the clamping column (12) and the threaded rod (13) are integrally formed;
the grooves comprise vertical grooves (15) and transverse grooves (14) which are formed in the side parts of the connectors (11), and the vertical grooves (15) are communicated with the transverse grooves (14);
the pull rod (2) comprises a fixed seat (22), an insulating rod (21) fixedly connected to the bottom of the fixed seat (22) and an inverted L-shaped rod head (23) fixedly connected to the top of the fixed seat (22);
the vertical rod of the inverted L-shaped rod head (23) is clamped in the vertical groove (15), and the transverse rod of the inverted L-shaped rod head (23) is positioned in the transverse groove (14);
the width of the notch of the vertical groove (15) is smaller than the diameter of the inverted L-shaped rod head (23), the width of the inner groove bottom of the vertical groove (15) is larger than the diameter of the inverted L-shaped rod head (23), and the width of the groove of the transverse groove (14) is larger than the diameter of the inverted L-shaped rod head (23);
the fixing sleeve (3) comprises a fixing sleeve body (31) sleeved outside the clamping column (12) and a threaded hole (32) formed in the side part of the fixing sleeve body (31).
2. The 10kV false-closing-preventing disconnecting switch lock according to claim 1, wherein: the upper sleeve (5) comprises an upper sleeve body (51) which is connected with the threaded rod (13) in a threaded mode and a threaded connection hole (53) formed in the side portion of the upper sleeve body (51), and inner connecting threads (52) which are matched with the threads of the threaded rod (13) are arranged on the inner side wall of the upper sleeve body (51).
3. The 10kV false-closing-preventing disconnecting switch lock according to claim 2, characterized in that: the lower pile head (4) comprises a lower pile head body (41) and a threaded fixing rod (42) fixed at the end part of the lower pile head body (41), and the threaded fixing rod (42) is in threaded connection with the threaded hole (32).
4. A 10kV anti-false-closing isolating switch lock according to claim 3, characterized in that: the upper pile head (6) comprises an upper pile head body (61) and a threaded connecting rod (62) fixed at the end part of the upper pile head body (61), and the threaded connecting rod (62) is in threaded connection with the threaded connecting hole (53).
5. A 10kV anti-misclosing disconnector lock according to any of claims 1-4, characterized in that: the screwing screw (1), the fixing sleeve (3), the lower pile head (4), the upper sleeve (5) and the upper pile head (6) are all made of insulating nylon materials.
6. The 10kV false-closing-preventing disconnecting switch lock of claim 5, wherein: the insulating material nylon material is polyamide PA66 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569250.1A CN109378247B (en) | 2018-12-21 | 2018-12-21 | 10kV anti-misoperation disconnecting switch lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569250.1A CN109378247B (en) | 2018-12-21 | 2018-12-21 | 10kV anti-misoperation disconnecting switch lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378247A CN109378247A (en) | 2019-02-22 |
| CN109378247B true CN109378247B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811569250.1A Active CN109378247B (en) | 2018-12-21 | 2018-12-21 | 10kV anti-misoperation disconnecting switch lock |
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| CN112234493A (en) * | 2020-10-29 | 2021-01-15 | 国网山东省电力公司威海供电公司 | Simple locking device for isolation baffle of static contact of 10kV switch cabinet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006100852A4 (en) * | 2006-09-22 | 2006-11-09 | Ak Power Solutions Pty Ltd | Dual-lock hookstick operator for outdoor switchgear |
| CN201440393U (en) * | 2009-06-11 | 2010-04-21 | 宁波电业局 | 110KV positive-negative isolating switch mechanical mistake-prevention locking device |
| JP2010154630A (en) * | 2008-12-25 | 2010-07-08 | Chugoku Electric Power Co Inc:The | Gas insulated switch device |
| CN106298347A (en) * | 2016-09-22 | 2017-01-04 | 成都迅德科技有限公司 | A kind of heavy current disconnecting switches |
| CN205881738U (en) * | 2016-06-29 | 2017-01-11 | 浙江谷元电力科技有限公司 | Isolator interlock of maloperation is prevented to circuit breaker |
| CN107546062A (en) * | 2017-09-21 | 2018-01-05 | 江苏南瑞帕威尔电气有限公司 | A kind of ZW20 disconnecting switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20041708A1 (en) * | 2004-09-07 | 2004-12-07 | Vei Power Distrib S P A | SWITCH-DISCONNECTOR DEVICE FOR ELECTRICAL CABINETS |
| JP2015023685A (en) * | 2013-07-19 | 2015-02-02 | 株式会社日立製作所 | Switch gear |
-
2018
- 2018-12-21 CN CN201811569250.1A patent/CN109378247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006100852A4 (en) * | 2006-09-22 | 2006-11-09 | Ak Power Solutions Pty Ltd | Dual-lock hookstick operator for outdoor switchgear |
| JP2010154630A (en) * | 2008-12-25 | 2010-07-08 | Chugoku Electric Power Co Inc:The | Gas insulated switch device |
| CN201440393U (en) * | 2009-06-11 | 2010-04-21 | 宁波电业局 | 110KV positive-negative isolating switch mechanical mistake-prevention locking device |
| CN205881738U (en) * | 2016-06-29 | 2017-01-11 | 浙江谷元电力科技有限公司 | Isolator interlock of maloperation is prevented to circuit breaker |
| CN106298347A (en) * | 2016-09-22 | 2017-01-04 | 成都迅德科技有限公司 | A kind of heavy current disconnecting switches |
| CN107546062A (en) * | 2017-09-21 | 2018-01-05 | 江苏南瑞帕威尔电气有限公司 | A kind of ZW20 disconnecting switch |
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| CN109378247A (en) | 2019-02-22 |
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