CN112289621B - Device for manual operation of disconnecting switch - Google Patents
Device for manual operation of disconnecting switch Download PDFInfo
- Publication number
- CN112289621B CN112289621B CN202011110925.3A CN202011110925A CN112289621B CN 112289621 B CN112289621 B CN 112289621B CN 202011110925 A CN202011110925 A CN 202011110925A CN 112289621 B CN112289621 B CN 112289621B
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- CN
- China
- Prior art keywords
- rotating shaft
- expansion joint
- manual operation
- connecting rod
- bracket
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Classifications
-
- 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
Landscapes
- 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 support structure comprises a plurality of brackets hinged to the outer wall of the fixed sleeve, and the brackets are of telescopic structures. The device for manually operating the isolating switch adopts an electric operation mode to replace manual operation, thereby greatly improving the operation efficiency and the operation safety performance.
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 switch electrical appliance in the power system, and has the function of disconnecting a circuit of small load current, reliably isolating 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; on the other hand, switching operation can be performed to change the operation mode, such as in a double bus operation mode, a disconnecting switch can be used to switch equipment or a line from one bus to another bus.
At present, the high-voltage isolating switch of 35kV and above is generally provided with an electric operating mechanism, and the electric operating mechanism is used for operating during normal switching operation. When the electric mechanism or the power supply fails and cannot be electrically operated temporarily, and an maintainer debugs the isolating switch, manual operation is performed by using a manual crank of a corresponding manufacturer. However, the following problems exist when the isolating switch is manually operated by using the manual crank at present:
1. based on the factors of the structural design of the isolating switch, a large number of turns are needed to be manually operated from the opening/closing operation to the closing/opening operation of the isolating switch. Particularly, like a 500kV Siemens isolating switch, the operation is about 200 circles; 2. the manual crank operation has a relatively slow rotation speed and a great limitation.
The two problems can cause that a great deal of manpower and time are consumed when the isolating switch is manually operated, the operation efficiency is extremely low, and the timeliness of power transmission and the power supply reliability are affected; in addition, excessive operating time tends to lead to fatigue of personnel, increasing the risk of mishandling.
Disclosure of Invention
The invention aims to provide a device for manually operating a disconnecting switch, which is used for solving the problems of complicated manual operation and unsafe operation.
To achieve the purpose, the invention adopts the following technical scheme:
an apparatus for manual operation of a disconnector, comprising:
the rotating structure comprises a rotating shaft and a connecting rod, wherein the connecting rod is arranged at one end of the rotating shaft and is used for connecting with 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 support structure comprises a plurality of brackets hinged to the outer wall of the fixed sleeve, and the brackets are of telescopic structures.
As the preferable scheme of the device for manually operating the isolating switch, the driving mechanism comprises an electric hand drill with an outer hexagonal transmission rod.
As the preferable scheme of the device for manually operating the isolating switch, the rotating shaft is provided with the 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 the preferable scheme of the device for manually operating the isolating switch, one end of the connecting rod is fixedly connected with the rotating shaft, and the other end of the connecting rod can be in interference fit connection with the manual operation hole on the isolating switch mechanism box.
As a preferable mode of the above-mentioned device for manual operation of the 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 the preferable scheme of the device for manually operating the isolating switch, the limiting device is arranged as a limiting ring, and the limiting rings are welded at two axial ends of the transmission shaft.
As the preferable scheme of the device for manually operating the isolating switch, the support comprises a first expansion joint, a second expansion joint and an adjusting piece, wherein the first expansion joint is axially sleeved in the second expansion joint, the adjusting piece is in threaded connection with the side wall of the second expansion joint and can move along the second expansion joint in a telescopic radial direction, and the adjusting piece can rotate relative to the second expansion joint to prop against the first expansion joint.
As a preferable mode of the device for manually operating the isolating switch, the first expansion joint can move upwards relative to the second expansion joint, and an insulating adsorption pad is arranged at the bottom of the second expansion joint.
As a preferable scheme of the device for manually operating the isolating switch, a fixing piece is arranged on the outer wall of the fixing sleeve, and the top of the bracket is hinged to the fixing piece;
the outer wall of the fixing sleeve is also provided with clamps corresponding to the fixing pieces one by one, and the clamps are arranged below the fixing pieces and can be clamped with the support.
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 arranged in the fixed column fixing sleeve; all supports in the open supporting structure are placed at the horizontal position with a flat surface, after the support is used, all the supports are folded, and the support of the device adopts the design of being unfolded and folded back, so that the whole volume of the device is small, the device does not occupy the space, and the device is convenient to use and carry.
Drawings
FIG. 1 is a schematic view of a device for manual operation of a disconnector in a use distracted state according to the invention;
FIG. 2 is a schematic view of the device for manual operation of a disconnector according to the invention in a collapsed state;
FIG. 3 is a schematic view of the structure of the rotary structure of the device for manual operation of the disconnecting switch of the invention;
FIG. 4 is a schematic view of the positioning structure of the device for manual operation of the disconnecting switch of 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 a support structure and a positioning structure in the device for manually operating a disconnecting switch according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Referring to fig. 1 to 6, the present invention provides a device for manual operation of a disconnector for connection with a disconnector mechanism housing having a manually operated hole.
The device for manual operation of the disconnector comprises a rotating structure 10 connected to a disconnector mechanism housing, a positioning structure 20 for positioning the rotating structure 10, and a support structure 30 for supporting the positioning structure 20.
The rotating structure 10 includes a rotating shaft 11 connected to a driving mechanism (not shown in the drawing) and a connecting rod 12 connected to a disconnecting switch mechanism case, the rotating shaft 11 passes through the positioning structure 20, one end of the rotating shaft 11 is connected to the connecting rod 12, and the other end of the rotating shaft 11 is connected to the driving mechanism (not shown in the drawing).
The positioning structure 20 comprises a fixing sleeve 21, the fixing sleeve 21 is provided with a through hole 22 matched with the rotating shaft 11, the rotating shaft 11 can rotate under the action of a driving mechanism (not shown in the figure) after passing through the through hole 22 on the fixing sleeve 21, the rotating shaft 11 is provided with limiting devices 13 for fixing and limiting on two sides extending out of the fixing sleeve 21, and the outside of the fixing sleeve 21 is connected with a supporting structure 30.
The support structure 30 comprises a plurality of brackets 31 distributed outside the fixed sleeve 21, the brackets 31 are arranged into a telescopic structure, the tops of the brackets 31 are hinged to the fixed sleeve 21 through fixing pieces 23, and the brackets 31 can rotate around the fixing pieces 23 so as to enable the bottom ends of the brackets 31 to tilt upwards or fold downwards.
Referring to fig. 1 to 6, as a non-limiting embodiment of the present invention, the support structure 30 of the device for manual operation of the isolating switch is provided, when in use, the plurality of brackets 31 in the support structure 30 are opened in a scattering shape, so as to support, fix and stabilize the whole device, and the device is not required to be held by hands for fixing during the operation of the device, thus greatly reducing the operation difficulty of the operator and saving labor and ease for the operator; the outside of the fixed sleeve 21 in the positioning structure 20 is connected with the supporting structure 30, so that the whole positioning structure 20 and the supporting structure 30 form a fixed seat structure together, the rotating shaft 11 can be inserted into the fixed sleeve 21, the rotating shaft 11 rotates in the fixed sleeve 21, and meanwhile, the positions, extending out of the two sides of the fixed sleeve 21, of the rotating shaft 11 are provided with the limiting devices 13, 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 operating stability of operators is further ensured; one end of a rotating shaft 11 in the rotating structure 10 is used for connecting a connecting rod 12 connected with the isolating switch mechanism box, the other end of the rotating shaft 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 act, so that 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 manual operation of a disconnecting switch of the present invention is provided, when in use, the supporting frames 31 in the supporting structure 30 are opened, the supporting structure 30 can be placed at a flat surface position, and when in use, the supporting structure 30 can be placed in a rough or uneven environment, and only the length of the supporting frame 31 is required to be adjusted in a telescopic manner, so that the device is stable in support, flexible in use, and applicable to different occasions. After the device is used, the brackets 31 are folded, and the device has a small whole structure and is convenient to carry.
The driving mechanism (not shown in the figure) is an electric hand drill with an outer hexagonal transmission rod. The electric hand drill is a common rotating tool, has small volume, is light and convenient in whole and is convenient to carry and use. Of course, other small and lightweight driving tools can be selected according to practical situations.
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 axis of rotation 11 and electric hand drill and is connected stably, and then ensures the safety of operating 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 the connection of the connecting rod 12 and the rotating shaft 11 is ensured; the other end of the connecting rod 12 is connected with a manual operation hole on the isolating switch mechanism box in an interference fit manner, so that the stability of the connection of the connecting rod 12 and the isolating switch mechanism box is ensured, and the safety of the operation process of operators and the quality and efficiency of operation are further ensured.
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, in addition to the limiting ring being used as the limiting device 13 in this embodiment, a plurality of limiting blocks may be distributed at intervals outside the rotating shaft 11 to be used as the limiting device 13.
Further, in the installation method of the rotating shaft 11, the connecting rod 12 and the rotating shaft 11 are connected into a whole, then the rotating shaft 11 passes through the through hole 22 in the fixed sleeve 21, and then the limiting devices 13 are welded on two sides of the rotating shaft 11 extending out of the fixed sleeve 21 respectively, so that the rotating shaft 11 is protected and limited, and the operation accuracy and safety of operators are ensured.
In this embodiment, the support 31 includes a first expansion joint 311, a second expansion joint 312 and an adjusting member 313, the first expansion joint 311 is axially sleeved inside the second expansion joint 312, the adjusting member 313 is in threaded connection with a side wall of the second expansion joint 312 and can move along a radial direction of the second expansion joint 312, and the adjusting member 313 can rotate relative to the second expansion joint 312 to further abut against the first expansion joint 311. When the position of the first telescopic joint 311 is adjusted to a proper height, the adjusting piece 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, the end of the top expansion joint of the bracket 31 at the top is provided with a drum 314, and the drum 314 is rotatably connected with the fixing member 23, and in this embodiment, the top of the first expansion joint 311 is provided with the drum 314.
The bottom of the bottom expansion joint of the bracket 31 at the bottommost is provided with an adsorption pad, specifically, in this embodiment, the bottom of the second expansion joint 312 is provided with an insulating adsorption pad, and the adsorption pad can be adsorbed on the ground surface, so that the bracket 31 is ensured to be fixed and stable with the fixing surface when being spread, and further the operation safety of operators is ensured.
Referring to fig. 1, 2, 4 and 5, as a non-limiting example of the present invention, the fixing member 23 includes a U-shaped groove 231, in which a cross bar 232 for rotatably coupling with the drum 314 is provided in the U-shaped groove 231, the U-shaped groove 231 may be formed of a U-shaped structure, or the U-shaped groove 231 may be formed of two fixing blocks 233 distributed in parallel outside the fixing sleeve 21 together with the fixing sleeve 21.
Further, the lower part of the fixing sleeve 21 is provided with clamps 24 the same as the brackets 31 in number, the clamps 24 are fixedly connected to the fixing sleeve 21, the outer sides of the clamps 24 are provided with openings 241, and the clamps 24 are respectively positioned below the fixing pieces 23 and used for fixing and supporting the brackets 31 when the brackets 31 are folded.
The fixture 24 is provided with the groove 242 for accommodating the bracket 31, the size of the groove 242 is matched with the size of the accommodated bracket 31, when the bracket 31 is folded, the groove is arranged in the fixture 24, so that the whole device is effectively ensured to be small in size and convenient to carry when not used.
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 is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (6)
1. A device for manual operation of a disconnector, comprising:
the rotating structure (10) comprises a rotating shaft (11) and a connecting rod (12), wherein the connecting rod (12) is arranged at one end of the rotating shaft (11) and is used for connecting with the isolating switch mechanism box, and the other end of the rotating shaft (11) is connected with the driving mechanism;
the positioning structure (20) comprises a fixed sleeve (21), and the rotating shaft (11) is coaxially arranged in the fixed sleeve (21); and
the support structure (30) comprises a plurality of brackets (31) hinged to the outer wall of the fixed sleeve (21), and the brackets (31) are of a telescopic structure;
the driving mechanism comprises an electric hand drill, and the electric hand drill is provided with an outer hexagonal transmission rod;
the bracket (31) comprises a first expansion joint (311), a second expansion joint (312) and an adjusting piece (313), wherein the first expansion joint (311) is axially sleeved in the second expansion joint (312), the adjusting piece (313) is in threaded connection with the side wall of the second expansion joint (312) and can move along the radial direction of the second expansion joint (312), and the adjusting piece (313) can rotate relative to the second expansion joint (312) to prop against the first expansion joint (311);
the outer wall of the fixed sleeve (21) is provided with a fixed piece (23), and the top of the bracket (31) is hinged on the fixed piece (23);
the outer wall of the fixing sleeve (21) is also provided with clamping devices (24) which are in one-to-one correspondence with the fixing pieces (23), and the clamping devices (24) are arranged below the fixing pieces (23) and can be clamped with the bracket (31);
the fixture (24) is provided with a groove (242) for accommodating the bracket (31), and the size of the groove (242) is matched with the size of the accommodated bracket (31).
2. Device for manual operation of a disconnector according to claim 1, characterized in that the rotation shaft (11) is provided with an internal hexagonal cavity in plug-in engagement with the external hexagonal transmission rod, and in that the internal hexagonal cavity is in interference fit connection with the external hexagonal transmission rod.
3. The device for manual operation of a disconnector according to claim 2, 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 a manual operation hole in the disconnector mechanism box in an interference fit.
4. A device for manual operation of a disconnector according to claim 1, characterized in that the rotating structure (10) is further provided with a limiting device (13), the limiting device (13) being configured to limit the axial movement of the rotating shaft (11) along the stationary sleeve (21).
5. Device for manual operation of a disconnector according to claim 4, characterized in that the stop means (13) are provided as stop rings welded to the axial ends of the rotation shaft (11).
6. The device for manual operation of a disconnector according to claim 1, characterized in that the first telescopic joint (311) is movable upwards with respect to the second telescopic joint (312), the bottom of the second telescopic joint (312) being provided with an insulating suction pad.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112289621A CN112289621A (en) | 2021-01-29 |
| CN112289621B true CN112289621B (en) | 2023-08-01 |
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Family Applications (1)
| 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) |
Families Citing this family (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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (6)
| 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 |
| 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 |
| CN109014322B (en) * | 2018-10-19 | 2019-12-24 | 湖南精正设备制造有限公司 | Corner positioning device for drilling of inner wall of large pipeline |
| 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 |
-
2020
- 2020-10-16 CN CN202011110925.3A patent/CN112289621B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN112289621A (en) | 2021-01-29 |
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