CN112289621A - Device for manually operating isolating switch - Google Patents
Device for manually operating isolating switch Download PDFInfo
- Publication number
- CN112289621A CN112289621A CN202011110925.3A CN202011110925A CN112289621A CN 112289621 A CN112289621 A CN 112289621A CN 202011110925 A CN202011110925 A CN 202011110925A CN 112289621 A CN112289621 A CN 112289621A
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- China
- Prior art keywords
- rotating shaft
- telescopic joint
- manual operation
- connecting rod
- fixed sleeve
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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
- H01H31/026—Movable parts and contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention belongs to the technical field of isolating switches, and discloses a device for manually operating an isolating switch, which comprises a rotating structure, wherein the rotating structure comprises a rotating shaft and a connecting rod, the connecting rod is arranged at one end of the rotating shaft and is used for connecting an isolating switch mechanism box, and the other end of the rotating shaft is connected with a driving mechanism; the positioning structure comprises a fixed sleeve, and the rotating shaft is coaxially arranged in the fixed sleeve; and the supporting structure comprises a plurality of brackets hinged on the outer wall of the fixed sleeve, and the brackets are arranged into a telescopic structure. The device for manually operating the isolating switch adopts an electric operation mode to replace manual operation, so that the operation efficiency and the operation safety performance are greatly improved.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to a device for manually operating an isolating switch.
Background
The isolating switch is an important high-voltage switching device in a power system, and has the functions of disconnecting a circuit with small load current, reliably isolating the electrical equipment to be overhauled from a live part of a power grid, and enabling the overhauled electrical equipment to have an obvious disconnection point with a power supply so as to ensure the safety of overhauling work; another aspect is that a switching operation can be performed to change the mode of operation, such as in a dual bus mode, a disconnector can be used to switch a device or line from one set of buses to another.
At present, electric operating mechanisms are generally arranged on high-voltage isolating switches of 35kV and above, and the electric operating mechanisms are used for operating during normal switching operation. When an electric mechanism or a power supply fails and cannot be electrically operated temporarily, and a maintenance worker debugs the isolating switch, manual operation is carried out manually by using a manual crank of a corresponding manufacturer. However, the following problems exist when the manual crank is used for manually operating the isolating switch at present:
firstly, based on the structural design factor of the isolating switch, the isolating switch is operated from opening/closing to closing/opening by hand-cranking a large number of turns. Particularly, like a 500kV Siemens isolating switch, the operation is approximately required to be about 200 circles; secondly, the rotation speed is slow when the crank is manually operated by manpower, and the device has great limitation.
The two problems lead to the consumption of a large amount of manpower and time when the isolating switch is manually operated, the operation efficiency is extremely low, and the timeliness and the power supply reliability of power transmission are influenced; in addition, the long operation time easily causes fatigue of personnel, and increases the risk of misoperation.
Disclosure of Invention
The invention aims to provide a device for manually operating an isolating switch, which solves the problems of complicated and unsafe manual operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for manual operation of a disconnector, comprising:
the rotating structure comprises a rotating shaft and a connecting rod, the connecting rod is arranged at one end of the rotating shaft and is used for connecting the isolating switch mechanism box, and the other end of the rotating shaft is connected with the driving mechanism;
the positioning structure comprises a fixed sleeve, and the transmission shaft is coaxially arranged in the fixed sleeve; and
the supporting structure comprises a plurality of brackets hinged on the outer wall of the fixed sleeve, and the brackets are arranged into a telescopic structure.
As a preferred aspect of the above device for manually operating a disconnector, the drive mechanism comprises an electric hand drill with an external hexagonal drive rod.
As a preferable scheme of the device for manually operating the disconnecting switch, the rotating shaft is provided with an inner hexagonal cavity which is in plug-in fit with the outer hexagonal transmission rod, and the inner hexagonal cavity is in interference fit connection with the outer hexagonal transmission rod.
As a preferable scheme of the above device for manually operating the disconnecting switch, one end of the connecting rod is fixedly connected to the rotating shaft, and the other end of the connecting rod can be connected to a manual operation hole in the disconnecting switch mechanism box in an interference fit manner.
As a preferable aspect of the above device for manually operating a disconnecting switch, the rotating structure is further provided with a limiting device configured to limit the axial movement of the rotating shaft along the fixed sleeve.
As a preferable scheme of the above device for manually operating the disconnecting switch, the limiting device is provided as a limiting ring, and the limiting ring is welded at two axial ends of the transmission shaft.
As a preferable scheme of the above device for manually operating the disconnecting switch, the bracket includes a first telescopic joint, a second telescopic joint, and an adjusting member, the first telescopic joint is axially sleeved inside the second telescopic joint, the adjusting member is in threaded connection with a side wall of the second telescopic joint and can move in a radial direction of the second telescopic joint, and the adjusting member can rotate relative to the second telescopic joint to abut against the first telescopic joint.
As a preferable scheme of the above device for manually operating the disconnecting switch, the first telescopic joint may move upward relative to the second telescopic joint, and an insulating adsorption pad is disposed at the bottom of the second telescopic joint.
As a preferable scheme of the device for manually operating the disconnecting switch, the outer wall of the fixing sleeve is provided with a fixing piece, and the top of the bracket is hinged to the fixing piece;
the outer wall of the fixed sleeve is also provided with clamping devices which correspond to the fixing pieces one by one, and the clamping devices are arranged below the fixing pieces and can be clamped with the bracket.
The invention has the beneficial effects that: one end of the rotating shaft is connected with the isolating switch mechanism box, the other end of the rotating shaft is connected with the driving mechanism, and meanwhile, the rotating shaft is installed in the fixed column fixing sleeve; the device has the advantages that the supports in the supporting structure can be unfolded and folded after being used, and the device is small in overall size, small in occupied space and convenient to use and carry.
Drawings
FIG. 1 is a schematic view of the manually operated device for disconnecting switches of the present invention in an open position;
FIG. 2 is a schematic view of the isolating switch manually operated device of the present invention in a closed state;
FIG. 3 is a schematic diagram of a rotary structure of the device for manually operating the disconnecting switch according to the present invention;
FIG. 4 is a schematic structural view of a positioning structure of the device for manually operating the disconnecting switch according to the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4;
fig. 6 is a schematic diagram showing the relationship between the supporting structure and the positioning structure in the device for manually operating the disconnecting switch according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Referring to fig. 1 to 6, the present invention provides a device for manual operation of a disconnection switch, which is used for connection with a disconnection switch mechanism case having a manual operation hole.
The device for manual operation of a disconnector comprises a rotary structure 10 connected to a disconnector mechanism box, a positioning structure 20 for positioning the rotary structure 10, and a support structure 30 for supporting the positioning structure 20.
The rotating structure 10 comprises a rotating shaft 11 connected with a driving mechanism (not shown in the figure) and a connecting rod 12 connected with the isolating switch mechanism box, wherein the rotating shaft 11 passes through the positioning structure 20, one end of the rotating shaft 11 is connected with the connecting rod 12, and the other end of the rotating shaft 11 is connected with the driving mechanism (not shown in the figure).
The supporting structure 30 comprises a plurality of brackets 31 distributed outside the fixing sleeve 21, the brackets 31 are arranged to be telescopic structures, the tops of the brackets 31 are hinged to the fixing sleeve 21 through fixing pieces 23, and the brackets 31 can rotate around the fixing pieces 23 to enable the bottom ends of the brackets 31 to be tilted upwards or folded downwards.
Referring to fig. 1 to 6, as a non-limiting embodiment of the present invention, the support structure 30 of the device for manually operating the disconnecting switch according to the present invention is arranged, when in use, the plurality of brackets 31 in the support structure 30 are opened in a scattering manner, so as to support, fix and stabilize the entire device, so that an operator does not need to hold the device by hand to fix the device during operation, thereby greatly reducing the operation difficulty of the operator, and making the operator labor-saving and easy; the external part of a fixing sleeve 21 in the positioning structure 20 is connected with a supporting structure 30, so that the whole positioning structure 20 and the supporting structure 30 form a fixed seat structure together, a rotating shaft 11 can be inserted into the fixing sleeve 21 in a penetrating manner, the rotating shaft 11 rotates in the fixing sleeve 21, and meanwhile, limiting devices 13 are arranged at positions of the rotating shaft 11 extending out of two sides of the fixing sleeve 21, so that the rotating shaft 11 can be protected and limited, the rotating space and the rotating stability of the rotating shaft 11 are ensured, and the operation stability of an operator is further ensured; in the rotating structure 10, one end of the rotating shaft 11 is used for connecting the connecting rod 12 connected with the isolating switch mechanism box, the other end of the rotating shaft 11 is used for connecting a driving structure, the driving structure drives the rotating shaft 11, the rotating shaft 11 drives the connecting rod 12 to rotate again, and then the connecting rod 12 drives the isolating switch mechanism box to move, so that the electric operation is realized, the electric operation replaces the traditional pure manual operation, and the operation efficiency is greatly improved.
Referring to fig. 1 to 6, as a non-limiting embodiment of the present invention, the device for manually operating a disconnecting switch according to the present invention is configured such that each of the brackets 31 of the supporting structure 30 is opened when the device is in use, and the brackets 31 are designed to have a telescopic structure, so that the supporting structure 30 can be placed on a flat surface, and the supporting structure 30 can also be placed on a lawn or an uneven environment, and only the length of the brackets 31 needs to be adjusted in a telescopic manner, thereby achieving stable support, flexible use and different applications. After the device is used, the brackets 31 are folded, and the device is small in overall structure and convenient to carry.
It should be noted that the driving mechanism (not shown) is an electric hand drill with an outer hexagonal driving rod. The electric hand drill is a common rotating tool, has small volume, is light and portable as a whole and is convenient to carry and use. Of course, other small and portable driving tools can be selected according to actual conditions.
Further, the inside of the one end that axis of rotation 11 and electric hand drill are connected is equipped with interior hexagonal cavity 14, and interior hexagonal cavity 14 is connected with outer hexagonal transfer line interference fit, effectively ensures that axis of rotation 11 and electric hand drill are connected stably, and then ensures the safety of operation personnel operation process to and the quality and the efficiency of operation.
Further, one end of the connecting rod 12 is fixedly connected with the rotating shaft 11 or integrally formed with the rotating shaft 11, so that the stability of connection between the connecting rod 12 and the rotating shaft 11 is ensured; the other end of connecting rod 12 is connected with the manual operation hole interference fit on the isolator mechanism case, ensures the stability that connecting rod 12 and isolator mechanism case are connected, and then ensures the safety of operation personnel operation process to and the quality and the efficiency of operation.
Further, the limiting device 13 is a limiting ring, and the inner peripheral edge of the limiting ring is fixed on the outer surface of the rotating shaft 11. Of course, besides the embodiment that a limiting ring is used as the limiting device 13, a plurality of limiting blocks may be distributed outside the rotating shaft 11 at intervals to be used as the limiting device 13.
Furthermore, in the installation method of the rotating shaft 11, the connecting rod 12 and the rotating shaft 11 are firstly connected into a whole, then the rotating shaft 11 penetrates through the through hole 22 in the fixed sleeve 21, and then the limiting devices 13 are respectively welded on the two sides of the rotating shaft 11 extending out of the fixed sleeve 21 to protect and limit the rotating shaft 11, so that the operation accuracy and safety of operators are ensured.
In this embodiment, the bracket 31 includes a first telescopic joint 311, a second telescopic joint 312 and an adjusting member 313, the first telescopic joint 311 is axially sleeved inside the second telescopic joint 312, the adjusting member 313 is screwed on a side wall of the second telescopic joint 312 and can move along a radial direction of the second telescopic joint 312, and the adjusting member 313 can rotate relative to the second telescopic joint 312 to abut against the first telescopic joint 311. When the position of the first telescopic joint 311 is adjusted to a proper height, the adjusting part 313 is screwed to fix the first telescopic joint 311, so that the first telescopic joint 311 and the second telescopic joint 312 are fastened together, and the telescopic adjustment of the bracket 31 is realized.
Referring to fig. 1, 2 and 6, as a non-limiting embodiment of the present invention, a rotating cylinder 314 is disposed at an end of the top telescopic joint of the bracket 31 at the top, and the rotating cylinder 314 is rotatably connected to the fixing member 23, in this embodiment, the rotating cylinder 314 is disposed at the top of the first telescopic joint 311.
The bottom of the bottom telescopic joint of the support 31 at the bottom is provided with an adsorption pad, and specifically, in this embodiment, the bottom of the second telescopic joint 312 is provided with an insulating adsorption pad, which can be adsorbed on the ground surface, so as to ensure that the support 31 is fixed and stable with the fixing surface when being opened, thereby ensuring the operation safety of the operator.
Referring to fig. 1, 2, 4 and 5, as a non-limiting embodiment of the present invention, the fixing member 23 includes a U-shaped groove 231, a cross bar 232 is disposed in the U-shaped groove 231 for rotatably connecting with the drum 314, the U-shaped groove 231 may be formed by a U-shaped structural member, or the U-shaped groove 231 may be formed by two fixing blocks 233 which are parallelly distributed outside the fixing sleeve 21 and together with the fixing sleeve 21.
Further, the lower portion of the fixing sleeve 21 is provided with the same number of clamps 24 as the number of the brackets 31, the clamps 24 are fixedly connected to the fixing sleeve 21, the outer side of the clamps 24 is provided with an opening 241, and the clamps 24 are respectively located below the fixing members 23 and used for fixing and supporting the brackets 31 when the brackets 31 are folded.
The fixture 24 is provided with a groove 242 for accommodating the bracket 31, the size of the groove 242 is matched with the size of the accommodated bracket 31, and the bracket 31 is arranged in the fixture 24 when being folded, so that the whole device is effectively ensured to be small in size and convenient to carry when not in use.
It should be noted that the rotating shaft 11, the connecting rod 12, the fixing sleeve 21 and the bracket 31 are all made of CR-V chromium vanadium, and have the advantages of high strength, strong torque and long service life.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A device for manual operation of a disconnector, characterized in that it comprises:
the rotating structure (10) comprises a rotating shaft (11) and a connecting rod (12), the connecting rod (12) is arranged at one end of the rotating shaft (11) and used for being connected with the isolating switch mechanism box, and the other end of the rotating shaft (11) is connected with the driving mechanism;
a positioning structure (20) comprising a fixed sleeve (21), said rotating shaft (11) being coaxially arranged in said fixed sleeve (21); and
the supporting structure (30) comprises a plurality of brackets (31) hinged on the outer wall of the fixing sleeve (21), and the brackets (31) are arranged into a telescopic structure.
2. An arrangement for the manual operation of a disconnector according to claim 1, characterized in that the drive mechanism comprises an electric hand drill provided with an external hexagonal drive rod.
3. The device for manually operating the disconnecting switch according to claim 2, wherein the rotating shaft (11) is provided with an inner hexagonal cavity which is in plug fit with the outer hexagonal transmission rod, and the inner hexagonal cavity is in interference fit connection with the outer hexagonal transmission rod.
4. The device for the manual operation of a disconnector according to claim 3, characterized in that one end of the connecting rod (12) is fixedly connected with the rotating shaft (11), and the other end of the connecting rod (12) can be connected with the manual operation hole on the disconnector mechanism box in an interference fit manner.
5. Device for the manual operation of disconnectors according to claim 1, characterized in that said rotating structure (10) is further provided with limiting means (13), said limiting means (13) being configured to limit the axial movement of said rotating shaft (11) along said fixed bushing (21).
6. Device for the manual operation of a disconnector according to claim 5, characterized in that the limiting means (13) is provided as a limiting ring welded to the axial ends of the rotating shaft (11).
7. The device for manually operating the disconnecting switch according to claim 6, wherein the bracket (31) comprises a first telescopic joint (311), a second telescopic joint (312) and an adjusting piece (313), the first telescopic joint (311) is sleeved inside the second telescopic joint (312) along the axial direction, the adjusting piece (313) is in threaded connection with the side wall of the second telescopic joint (312) and can move along the radial direction of the second telescopic joint (312), and the adjusting piece (313) can rotate relative to the second telescopic joint (312) to abut against the first telescopic joint (311).
8. The device for the manual operation of the disconnecting switch according to claim 7, characterized in that the first telescopic joint (311) can move upwards relative to the second telescopic joint (312), and the bottom of the second telescopic joint (312) is provided with an insulated adsorption pad.
9. Device for the manual operation of a disconnector according to claim 1, characterized in that the external wall of said fixed sleeve (21) is provided with a fixing element (23), the top of said bracket (31) being hinged to said fixing element (23);
the outer wall of the fixed sleeve (21) is further provided with clamping devices (24) which correspond to the fixing pieces (23) one by one, and the clamping devices (24) are arranged below the fixing pieces (23) and can be used for clamping the support (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011110925.3A CN112289621B (en) | 2020-10-16 | 2020-10-16 | Device for manual operation of disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011110925.3A CN112289621B (en) | 2020-10-16 | 2020-10-16 | Device for manual operation of disconnecting switch |
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| Publication Number | Publication Date |
|---|---|
| CN112289621A true CN112289621A (en) | 2021-01-29 |
| CN112289621B CN112289621B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011110925.3A Active CN112289621B (en) | 2020-10-16 | 2020-10-16 | Device for manual operation of disconnecting switch |
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| Country | Link |
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| CN (1) | CN112289621B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096979A (en) * | 2021-04-25 | 2021-07-09 | 广东电网有限责任公司 | Disconnecting switch operating tool |
| CN113526708A (en) * | 2021-08-03 | 2021-10-22 | 康德纳米科技有限公司 | Water filter for water tower |
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| US5066840A (en) * | 1990-10-09 | 1991-11-19 | Automatic Switch Company | Manual operator for an electrical switch |
| CN105429028A (en) * | 2015-11-19 | 2016-03-23 | 国网河南省电力公司漯河供电公司 | Static and dynamic contact separation operation apparatus for isolation switch |
| US9666384B1 (en) * | 2016-02-05 | 2017-05-30 | Martek Limited | Portable actuator device and system for remotely operating electrical disconnect switches |
| CN107717005A (en) * | 2017-11-20 | 2018-02-23 | 清远韶兴新能源科技有限公司 | A kind of electric hand drill with stable bracing frame |
| CN109014322A (en) * | 2018-10-19 | 2018-12-18 | 湖南精正设备制造有限公司 | A kind of boring angle positioning device of large-scale pipeline inner wall |
| CN110676081A (en) * | 2019-10-16 | 2020-01-10 | 国网上海市电力公司 | Multifunctional insulation control series device |
| CN111584263A (en) * | 2020-05-14 | 2020-08-25 | 广东电网有限责任公司惠州供电局 | Switching operation tool for isolating switch |
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2020
- 2020-10-16 CN CN202011110925.3A patent/CN112289621B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066840A (en) * | 1990-10-09 | 1991-11-19 | Automatic Switch Company | Manual operator for an electrical switch |
| CN105429028A (en) * | 2015-11-19 | 2016-03-23 | 国网河南省电力公司漯河供电公司 | Static and dynamic contact separation operation apparatus for isolation switch |
| US9666384B1 (en) * | 2016-02-05 | 2017-05-30 | Martek Limited | Portable actuator device and system for remotely operating electrical disconnect switches |
| CN107717005A (en) * | 2017-11-20 | 2018-02-23 | 清远韶兴新能源科技有限公司 | A kind of electric hand drill with stable bracing frame |
| CN109014322A (en) * | 2018-10-19 | 2018-12-18 | 湖南精正设备制造有限公司 | A kind of boring angle positioning device of large-scale pipeline inner wall |
| CN110676081A (en) * | 2019-10-16 | 2020-01-10 | 国网上海市电力公司 | Multifunctional insulation control series device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096979A (en) * | 2021-04-25 | 2021-07-09 | 广东电网有限责任公司 | Disconnecting switch operating tool |
| CN113526708A (en) * | 2021-08-03 | 2021-10-22 | 康德纳米科技有限公司 | Water filter for water tower |
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| Publication number | Publication date |
|---|---|
| CN112289621B (en) | 2023-08-01 |
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