CN111403926A - Auxiliary device for hanging ground wire of ultrahigh voltage transmission line - Google Patents
Auxiliary device for hanging ground wire of ultrahigh voltage transmission line Download PDFInfo
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- CN111403926A CN111403926A CN201911377322.7A CN201911377322A CN111403926A CN 111403926 A CN111403926 A CN 111403926A CN 201911377322 A CN201911377322 A CN 201911377322A CN 111403926 A CN111403926 A CN 111403926A
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- rod
- wire
- sliding groove
- hanging
- fixed pulley
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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Abstract
The invention discloses an auxiliary device for hanging a grounding wire of an extra-high voltage transmission line, which comprises a telescopic rod and a wire hook hung with a target wire, wherein one end of the telescopic rod is a handheld end, the other end of the telescopic rod is a hanging end, and the hanging end comprises a pulley mechanism and a transmission assembly matched with the pulley mechanism.
Description
Technical Field
The invention relates to the field of ultrahigh voltage power transmission, in particular to an auxiliary device for hanging a grounding wire of an ultrahigh voltage power transmission line.
Background
The working grounding wire is a safety appliance for short-circuit grounding of power failure equipment. The zero potential of the earth is connected with the electrical equipment through the working grounding wire, so that the connected electrical equipment is at the zero potential. When the power transmission line is in power failure and overhauled, a working grounding wire is hung at each end of a working section, which is one of technical measures for ensuring safe work on the power transmission line, and the main functions of the device are to introduce residual charge of a power failure line into the ground, eliminate induction of an adjacent live line, prevent sudden power transmission of the line and the like. For example, a "ground wire device with operation status indication" disclosed in chinese patent document, publication No. CN209016287U includes a ground clip, a ground terminal electrically connected to the ground clip through a annealed copper wire, a first pressure sensor provided on a part of the ground clip contacting a hanging wire, and a second pressure sensor provided on a part of the ground terminal contacting a ground wire; the first pressure sensor and the second pressure sensor are both electrically connected with a processor, and the processor is electrically connected with a terminal indicator. In actual operation, when the ground wire of the 500kV transmission line large-corner tower is hung, the horizontal distance between the cross arm head operation point and the jumper wire conducting space is large when an operator stands, the mode of swinging back into the throwing hanging mode by the horizontal direction is often adopted, and the phenomena of large difficulty, unstable hanging and the like sometimes occur.
Disclosure of Invention
The invention provides an auxiliary device for hanging a grounding wire of an ultrahigh-voltage power transmission line, which aims to solve the problem that the existing working grounding wire is hung in a mode of swinging back into a throwing mode horizontally to cause the phenomena of high difficulty, unstable hanging and the like, and the auxiliary device simplifies the operation difficulty and greatly increases the hanging success rate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an extra-high voltage transmission line earth connection hangs establishes auxiliary device, includes the telescopic link and hangs the wire couple of establishing with the target wire, the one end of telescopic link is handheld end, and the other end is established the end for hanging, hang and establish the end including pulley mechanism and with pulley mechanism complex transmission subassembly, pulley mechanism includes the V type screw rod of fixed pulley and fixed pulley, V type screw rod is including the first screw rod section that is used for passing telescopic link and fixed pulley and the second screw rod section that is used for the direction, and the fixed pulley is located between telescopic link and the second screw rod section, the transmission subassembly include insulating rope and with insulating rope fixed connection's directional piece, be equipped with the rope hole that is used for passing insulating rope in the directional piece, the ground clamp that is equipped with and is used for fixed earth connection is hung to the directional piece. The working grounding wire is a safety appliance for short-circuit grounding of power failure equipment, and the zero potential of the earth is connected with the electrical equipment through the working grounding wire, so that the connected electrical equipment is at the zero potential. When the power transmission line is in power failure and overhauled, a working grounding wire is hung at each end of a working section, which is one of technical measures for ensuring safe work on the power transmission line, and the main functions of the device are to introduce residual charge of a power failure line into the ground, eliminate induction of an adjacent live line, prevent sudden power transmission of the line and the like. The device has the effects that the grounding wire is hung on the corresponding wire, the telescopic rod is operated to hang the wire hook on the hanging end of the telescopic rod on the adjacent wire of the working section wire, a passage capable of quickly conveying the grounding wire clamp is formed, the directional block is conveyed to the hanging end from the handheld end by pulling of the pulley mechanism, the grounding wire clamp below the directional block is just contacted with the wire of the working section and hung on the section wire, one end of the grounding wire dragged on the grounding wire clamp is dragged to the ground, and the other end of the grounding wire and the wire form an electric passage to complete the grounding of the working section wire. The effect of V type screw rod is so that the fixed pulley can rotate with the telescopic link and is connected to hanging of its second screw rod section slant telescopic link establishes the end tip and is close to, is connected with the wire when the earth connection and finishes, and insulating rope shakes off with the anchor ring of fixed pulley and breaks away from, and insulating rope is taken and is hung at first screw rod section this moment, through the operation of withdrawing the telescopic link, with insulating rope from first screw rod section landing to second screw rod section gradually, finally deviate from the free end of second screw rod section, thereby accomplish withdrawing of telescopic link. Utilize the axial restraint of second screw rod section to the fixed pulley, when having avoided using other restraint structures, probably appear insulating rope slip in the clearance between fixed pulley and the restraint structure, and can't break away from the condition of telescopic link.
Preferably, the wire pushing device is arranged on the telescopic rod and comprises a first rod piece, a second rod piece and a gear, the first rod piece is connected with the telescopic rod in a sliding mode, a first spring used for resetting is arranged between the first rod piece and the telescopic rod, a first inclined plane is arranged at one end, close to the second rod piece, of the first rod piece, the second rod piece is connected with the telescopic rod in a sliding mode, a second inclined plane matched with the first inclined plane is arranged at one end, close to the first rod piece, of the second rod piece, a rack is arranged at the corresponding position of the second rod piece, the gear is connected with the telescopic rod in a rotating mode, a shifting lever is arranged at the edge, close to the fixed pulley, of the gear. The wire pushing device has the advantages that the insulating wire is quickly separated from the fixed pulley, the second rod piece moves towards the direction far away from the gear under the action of the second spring by pulling the first rod piece, the rack on the second rod piece drives the gear to rotate along with the movement of the second rod piece, the shifting lever connected with the gear sweeps the ring surface of the fixed pulley by taking the rotating shaft of the gear as the center of a circle, and the insulating wire on the ring surface is shifted down by the shifting lever in the sweeping process so that the insulating wire is separated from the fixed pulley. Through pushing away the traditional thread binding putting, can effectively avoid the shake telescopic link with insulated wire and fixed pulley separation, hang the influence of establishing the wire to the earth clamp.
Preferably, the ring surface of the fixed pulley is provided with a groove, and the surface of the groove is contacted with the end part of the deflector rod close to the fixed pulley. The groove enables the insulated wire to slide on the fixed pulley more stably, and the insulated wire is prevented from accidentally falling off midway. The surface of the groove is superposed with the sweeping track of the end part of the deflector rod, so that the deflector rod can more effectively stir the insulated wire.
Preferably, a first sliding groove is formed in the telescopic rod, the cross section of the first sliding groove is polygonal, the first rod piece is located in the first sliding groove, and the first rod piece is attached to the inner wall of the first sliding groove. The first chute with the polygonal section is matched with the first rod piece with the polygonal section, so that the first rod piece is effectively prevented from rotating in the first chute, and the angle of the first inclined plane is further influenced.
Preferably, a second sliding groove is formed in the telescopic rod and communicated with the first sliding groove, the cross section of the second sliding groove is polygonal, the second rod piece is located in the second sliding groove, and the second rod piece is attached to the inner wall of the second sliding groove. The second member is located the second spout to the setting as far as possible of device of will pushing away line and the inside of telescopic link, thereby avoid in operation process telescopic link and wire around taking place to scratch.
Preferably, the orientation block and the fixed pulley are made of polyvinyl chloride plastics respectively. The polyvinyl chloride plastic is made of lighter materials, so that the processed orientation block and the processed fixed pulley are lighter, the weight of the hanging end is reduced, and the operability of the telescopic rod is improved.
Preferably, the orientation block is connected with the grounding wire clamp through a rope. The rope connection is flexible connection, so that the grounding wire clamp is in a vertical state under the action of gravity in the process of approaching a wire, and the grounding wire clamp is positioned under the orientation block, so that an operator can conveniently position the grounding wire clamp.
Therefore, the invention has the following beneficial effects: (1) a passage capable of quickly transmitting the grounding wire clamp is formed by utilizing the telescopic rod, so that the success rate of connecting the grounding wire with the working section lead is greatly increased; (2) through pushing away the traditional thread binding putting, can effectively avoid the shake telescopic link with insulated wire and fixed pulley separation, hang the influence of establishing the wire to the earth clamp.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the stationary sheave of the present invention.
Fig. 3 is a sectional view of the second pin of the present invention.
Fig. 4 is a working principle diagram of the present invention.
In the figure: 1. the device comprises an expansion link 2, a handheld end 3, a hanging end 4, a fixed pulley 5, a V-shaped screw 6, a wire hook 7, an insulated wire 8, a first screw section 9, a second screw section 10, a nut 11, a first rod 12, a first sliding groove 13, a deflector rod 14, a gear 15, a rack 16, a second rod 17, a first spring 18, a first inclined plane 19, a second inclined plane 20, a second sliding groove 21, a second spring 22, a directional block 23, a grounding wire clamp 24, a target wire 25, a working section wire 26 and a grounding wire.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Examples
In the embodiment shown in fig. 1, 2, 3 and 4, an auxiliary device for hanging an earth wire 26 of an extra-high voltage transmission line comprises a telescopic rod 1 made of an insulating material, one end of the telescopic rod 1 is a handheld end 2, the other end of the telescopic rod is a hanging end 3, the hanging end 3 is fixed with a wire hook 6 for hanging a target wire 24, the hanging end 3 further comprises a pulley mechanism and a transmission component matched with the pulley mechanism, the pulley mechanism comprises a fixed pulley 4 made of polyvinyl chloride and a V-shaped screw 5 for fixing the fixed pulley 4, the V-shaped screw 5 comprises a first screw section 8 for passing through the telescopic rod 1 and the fixed pulley 4 and a second screw section 9 for guiding, a through hole is drilled at a corresponding position at the hanging end 3 of the telescopic rod 1, a first thread section of the V-shaped screw 5 passes through the through hole and is connected with the fixed pulley 4, the fixed pulley 4 is positioned between the telescopic rod 1 and the second screw section 9, the free end of the first thread section is fixed through a nut 10, so that the fixed pulley 4 is rotatably connected with the telescopic rod 1 through a V-shaped screw rod 5. The transmission component comprises an insulating rope and a directional block 22 made of polyvinyl chloride and fixedly connected with the insulating rope, wherein a rope hole is formed in the directional block 22, so that the insulating rope can penetrate through the rope hole, and the directional block 22 can freely slide on the insulating rope. The lower end of the directional block 22 is hung with a grounding wire clamp 23 for fixing a grounding wire 26 through a rope, the insulating rope firstly passes through a rope hole on the positioning block, then winds through a groove on the fixed pulley 4, and finally is fixed with the grounding wire clamp 23. Be equipped with the device of pushing away line on telescopic link 1, it includes first member 11 to push to the device, second member 16 and gear 14, first member 11 passes through the first spout 12 sliding connection of axial setting on telescopic link 1 with telescopic link 1, the cross-section of first spout 12 is the quadrangle, it is equipped with the opening at handheld end 2, the same cross-section is the first member 11 of quadrangle and wears to establish in first spout 12, because the inner wall laminating of first member 11 and first spout 12, make first member 11 can only be along axial motion and unable rotation in first spout 12. The telescopic rod 1 is close to the corresponding position of the first roller and is provided with a second chute 20 with a quadrangular cross section along the radial direction, an opening at one end of the second chute 20 is positioned on the outer surface of the telescopic rod 1, the other end of the second chute is communicated with the first chute 12, a second rod 16 with a quadrangular cross section is arranged in the second chute 20 in a penetrating way, one end of the second rod 16 is close to the first rod 11, a second inclined plane 19 is cut at the end, a first inclined plane 18 is also cut at one end of the first rod 11 close to the second inclined plane 19, and the two inclined planes are mutually attached. A first spring 17 is arranged between the first rod 11 and the inner wall of the first sliding chute 12, and a second spring 21 is arranged between the second rod 16 and the inner wall of the second sliding chute 20. A rack 15 is arranged on one section of the rod body of the second rod piece 16 extending out of the second sliding chute 20, a gear 14 is arranged at the corresponding position of the telescopic rod 1, the rack 15 is meshed with the gear 14, a shifting rod 13 is arranged at the edge of the gear 14 close to the fixed pulley 4, and the free end of the shifting rod 13 is attached to a groove arranged on the ring surface of the fixed pulley 4.
In the operation process, an operator hangs the wire hook 6 at the hanging end 3 of the telescopic rod 1 on the target wire 24 by adjusting the handheld end 2 of the telescopic rod 1, the target wire 24 is often an adjacent wire of the working section wire 25, when the hanging is finished, the horizontal height of the handheld end 2 is higher than that of the hanging end 3, the insulating rope and the orientation block 22 are released, the orientation block 22 falls under the action of gravity, when the orientation block 22 falls to the lowest point, the insulating rope is pulled, the orientation block 22 is gradually close to the hanging end 3 through the fixed pulley 4, when the grounding wire clamp 23 hung below the orientation block 22 through the rope is completely hung with the working section wire 25, the grounding wire 26 communicates the working section wire 25 with the ground through the grounding wire clamp 23 at the moment, and the working section wire 25 is in the grounding state. When the telescopic rod 1 needs to be retracted, the first rod 11 is pulled, so that the first rod 11 moves towards a direction away from the second rod 16, at this time, the first spring 17 is compressed, the constraint action of the first inclined surface 18 on the second inclined surface 19 gradually disappears, so that the second rod 16 moves towards the direction of the first rod 11 under the action of the second spring 21, the rack 15 on the second rod 16 drives the gear 14 to rotate along with the movement of the second rod 16, the deflector rod 13 connected with the gear 14 sweeps the groove of the fixed pulley 4 by taking the rotating shaft of the gear 14 as a circle center, during the sweeping process, the deflector rod 13 deflects the insulating wire 7 in the groove, so that the insulating wire 7 is separated from the fixed pulley 4, at this time, the insulating wire is lapped on the first screw rod section 8, through the operation of withdrawing the telescopic rod 1, the insulating wire is gradually slid from the first screw rod section 8 to the second screw rod section 9, and finally is separated from the free end of the second screw rod section 9, the retraction of the telescopic rod 1 is thus completed, leaving only the insulated wire 7 and the orientation block 22 connected to the earth clamp 23. The first lever 11 is released, the first lever 11 is reset by the first spring 17, during the resetting, the first inclined surface 18 presses the second inclined surface 19 to reset the second lever 16, the second spring 21 returns to the compressed state, and the gear 14 also rotates in the reverse direction to complete the resetting.
Claims (7)
1. The utility model provides an extra-high voltage transmission line earth connection hangs establishes auxiliary device, includes the telescopic link and hangs the wire couple of establishing with the target wire, characterized by the one end of telescopic link is handheld end, and the other end is established the end for hanging, hang establish the end include pulley mechanism and with pulley mechanism complex transmission subassembly, pulley mechanism includes the V type screw rod of fixed pulley and fixed pulley, V type screw rod is including the first screw rod section that is used for passing telescopic link and fixed pulley and the second screw rod section that is used for the direction, and the fixed pulley is located between telescopic link and the second screw rod section, the transmission subassembly include insulating rope and with insulating rope fixed connection's directional piece, be equipped with the rope hole that is used for passing insulating rope in the directional piece, the ground clamp that is used for fixed earth connection is hung to the directional piece.
2. The auxiliary device for hanging the ground wire of the extra-high voltage transmission line according to claim 1, wherein the retractable rod is provided with a wire pushing device, the wire pushing device comprises a first rod, a second rod and a gear, the first rod is slidably connected with the retractable rod, a first spring for resetting is arranged between the first rod and the retractable rod, one end of the first rod, which is close to the second rod, is provided with a first inclined surface, the second rod is slidably connected with the retractable rod, a first end of the second rod, which is close to the first rod, is provided with a second inclined surface matched with the first inclined surface, a corresponding position of the second rod is provided with a rack, the gear is rotatably connected with the retractable rod, a deflector rod is arranged at the edge of the gear, which is close to the fixed pulley, and the gear is.
3. The auxiliary device for hanging the grounding wire of the extra-high voltage transmission line according to claim 2, wherein the ring surface of the fixed pulley is provided with a groove, and the surface of the groove is in contact with the end part of the deflector rod close to the fixed pulley.
4. The auxiliary device for hanging the ground wire of the extra-high voltage transmission line according to claim 1, wherein a first sliding groove is formed in the telescopic rod, the cross section of the first sliding groove is polygonal, the first rod piece is located in the first sliding groove, and the first rod piece is attached to the inner wall of the first sliding groove.
5. The auxiliary device for hanging the ground wire of the extra-high voltage transmission line according to claim 4, wherein a second sliding groove is formed in the telescopic rod, the second sliding groove is communicated with the first sliding groove, the cross section of the second sliding groove is polygonal, the second rod piece is located in the second sliding groove, and the second rod piece is attached to the inner wall of the second sliding groove.
6. The device of claim 1, wherein the orientation block and the fixed pulley are made of polyvinyl chloride plastic.
7. The auxiliary device for hanging the grounding wire of the extra-high voltage transmission line according to any one of claims 1 to 6, wherein the directional block is connected with the grounding wire clamp through a rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377322.7A CN111403926B (en) | 2019-12-27 | 2019-12-27 | Auxiliary device for hanging ground wire of ultrahigh voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377322.7A CN111403926B (en) | 2019-12-27 | 2019-12-27 | Auxiliary device for hanging ground wire of ultrahigh voltage transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN111403926A true CN111403926A (en) | 2020-07-10 |
| CN111403926B CN111403926B (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911377322.7A Active CN111403926B (en) | 2019-12-27 | 2019-12-27 | Auxiliary device for hanging ground wire of ultrahigh voltage transmission line |
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| CN (1) | CN111403926B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864501A (en) * | 2020-07-24 | 2020-10-30 | 南京欧霖霏科技有限公司 | A take insulating operating system of fire with electricity for electric power trade |
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| CN208923393U (en) * | 2018-10-28 | 2019-05-31 | 中国南方电网有限责任公司超高压输电公司南宁局 | Controllable type run-resistant high-voltage electric power circuit grounding wire device |
| CN211829251U (en) * | 2019-12-27 | 2020-10-30 | 国网浙江省电力有限公司金华供电公司 | Auxiliary device for hanging ground wire of ultrahigh voltage transmission line |
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2019
- 2019-12-27 CN CN201911377322.7A patent/CN111403926B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204270Y (en) * | 2008-06-10 | 2009-03-04 | 江苏省电力公司溧阳市供电公司 | Insertion/hanging type cayman cable fastener type grounding wire |
| CN201638948U (en) * | 2010-01-27 | 2010-11-17 | 山东电力集团公司淄博供电公司 | Throw-pull earth wire for transmission line |
| CN104037582A (en) * | 2014-06-19 | 2014-09-10 | 国网四川省电力公司成都市新都供电分公司 | Labor-saving adjustable ground wire hook mounting mechanism |
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| CN211829251U (en) * | 2019-12-27 | 2020-10-30 | 国网浙江省电力有限公司金华供电公司 | Auxiliary device for hanging ground wire of ultrahigh voltage transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864501A (en) * | 2020-07-24 | 2020-10-30 | 南京欧霖霏科技有限公司 | A take insulating operating system of fire with electricity for electric power trade |
| CN111864501B (en) * | 2020-07-24 | 2021-08-06 | 陕西专壹知识产权运营有限公司 | A take insulating operating system of fire with electricity for electric power trade |
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| Publication number | Publication date |
|---|---|
| CN111403926B (en) | 2022-01-28 |
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