CN111403926B - 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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- CN111403926B CN111403926B CN201911377322.7A CN201911377322A CN111403926B CN 111403926 B CN111403926 B CN 111403926B CN 201911377322 A CN201911377322 A CN 201911377322A CN 111403926 B CN111403926 B CN 111403926B
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- rod
- wire
- telescopic rod
- 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 point of the earth is electrified through a working grounding wire
The bit is connected to the electrical device such that the connected electrical device is at zero potential. When the transmission line is in power failure maintenance, each working section is provided with
The end-hung working grounding wire is one of the technical measures for ensuring the safe work on the line and has the main function of leading the rest of the power failure line
Residual charge is introduced into the ground, induction of adjacent live lines is eliminated, sudden power transmission of the lines is prevented, and the like. For example, a Chinese patent medicine
The publication discloses a grounding wire device with operation status indication, whose notice number CN209016287U includes a grounding wire
A ground clamp, a grounding terminal electrically connected with the ground clamp through a soft copper wire, and a part of the ground clamp contacting with the hanging wire
A first pressure sensor is arranged on the grounding end, and a second pressure sensor is arranged on a part of the grounding end, which is contacted with the ground wire; the first mentioned
And 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 fact
In the inter-operation, because 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 aims to overcome the defect that the existing working grounding wire is usually hung in a mode of swinging horizontally into a throwing hanger, so that the existing working grounding wire is
The problems of high difficulty, unstable hanging and the like occur occasionally, provides an auxiliary device for hanging the grounding wire of the ultra-high voltage transmission line,
the operation difficulty is simplified, and meanwhile, the hanging success rate is greatly increased.
In order to achieve the purpose, the invention adopts the following technical scheme:
an auxiliary device for hanging a grounding wire of an extra-high voltage transmission line comprises a telescopic rod and a wire hook hung with a target wire,
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 is matched with the pulley mechanism
A combined transmission component, wherein the pulley mechanism comprises a fixed pulley and a V-shaped screw for fixing the fixed pulley, and the V-shaped screw comprises a fixed pulley and a fixed pulley
The fixed pulley is arranged on the telescopic rod and the second screw rod section for guiding
Between two screw rod sections, the transfer assembly includes insulating rope and with insulating rope fixed connection's directional piece, establish in the directional piece
The directional block is hung with a grounding wire clamp for fixing a grounding wire. The working grounding wire is a wire
The safety appliance for short-circuit grounding of power failure equipment is characterized by that the zero potential of earth is connected with electric equipment by means of working grounding wire so as to make the equipment be grounded
The connected electrical device is at zero potential. When the power transmission line is in power failure maintenance, the working grounding wires are hung at each end of the working section
One of the technical measures for safe operation on the line is mainly used for introducing the residual charge of the power failure line into the ground and eliminating the adjacent charges
Induction of live lines and prevention of sudden power transmission of lines. The device has the effects that the grounding wire is hung on the corresponding lead, the telescopic rod is operated to hang the lead hook on the hanging end of the grounding wire on the adjacent lead of the working section lead, and a quick conveying function is formed
The passage of the grounding wire clamp is pulled by the pulley mechanism to transmit the directional block from the handheld end to the hanging end and the lower part of the directional block
The grounding wire clamp is just contacted with the lead of the working section and hung on the lead of the working section, so that one end of a grounding wire dragged on the grounding wire clamp
And the other end of the mop is electrically connected with the wire to complete the grounding of the wire at the working section. The function of the V-shaped screw is to enable the fixed pulley to be fixed
Can be rotatably connected with the telescopic rod, and the end part of the second screw rod section inclined to the telescopic rod is close to the end part of the hanging end of the telescopic rod, so that the ground wire and the lead wire can be connected when the ground wire and the lead wire are hung
After the connection is finished, the insulating rope is shaken off and separated from the ring surface of the fixed pulley, and at the moment, the insulating rope is hung on the first screw section and is stretched and retracted by withdrawing
The operation of the rod gradually slides the insulating rope from the first screw section to the second screw section, and finally the insulating rope is separated from the free end of the second screw section,
thereby completing the retraction of the telescopic rod. The axial constraint of the second screw rod section to the fixed pulley is utilized, so that when other constraint structures are used,
the situation that the insulating rope slides into a gap between the fixed pulley and the constraint structure and cannot be separated from the telescopic rod may occur.
Preferably, the telescopic rod is provided with a wire pushing device, and the wire pushing device comprises a first rod piece, a second rod piece and
the first rod piece is connected with the telescopic rod in a sliding way, a first spring for resetting is arranged between the first rod piece and the telescopic rod,
one end of the first rod piece, which is close to the second rod piece, is provided with a first inclined plane, the second rod piece is connected with the telescopic rod in a sliding way, and the second rod piece is close to the telescopic rod
A second inclined plane matched with the first inclined plane is arranged at the first end close to the first rod piece, a rack is arranged at the corresponding position of the second rod piece, and the rack is arranged on the first end close to the first rod piece
The gear is connected with the telescopic link rotation, and the edge that the gear is close to the fixed pulley is equipped with the driving lever, and the gear meshes with the rack. Of devices for pushing the wire
The function is to separate the insulated wire from the fixed pulley quickly, and the second rod piece is under the action of the second spring by pulling the first rod piece
Moves downwards in the direction far away from the gear, 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 circle center, and the shifting lever will sweep the ring surface of the fixed pulley in the sweeping process
The insulated wire on the ring surface is pulled off, so that the insulated wire is separated from the fixed pulley. By the wire pushing device, the insulated wire can be effectively slid
When the wheel separation has avoided the shake telescopic link, 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 and the end part of the deflector rod close to the fixed pulley are arranged
And (4) contacting. 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. Surface of the recess and the driving lever
The sweeping tracks of the end parts are overlapped, so that the poking rod can poke the insulated wire more effectively.
Preferably, a first sliding groove is arranged in the telescopic rod, the cross section of the first sliding groove is polygonal, and the first rod
The piece is located the first spout, and first member is laminated with the inner wall of first spout. The first chute with polygonal section is matched with the section
The first rod piece is polygonal, so that the first rod piece is effectively prevented from rotating in the first sliding groove, and the influence on the first inclined plane is further avoided
And (4) an angle.
Preferably, a second sliding groove is arranged in the telescopic rod, the second sliding groove is communicated with the first sliding groove, and the second sliding groove
The cross section 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. Second rod piece
Is positioned in the second sliding groove, thereby setting the wire pushing device as much as possible and the inside of the telescopic rod, and avoiding extending in the operation process
The shrinkage rod is scratched with the surrounding wires.
Preferably, the orientation block and the fixed pulley are made of polyvinyl chloride plastics respectively. Polyvinyl chloride plastic self material
Lighter, so the processed orientation block and the fixed pulley are lighter, and the weight at the hanging end is reduced, thereby improving the expansion and contraction
Operability of the lever.
Preferably, the orientation block is connected with the grounding wire clamp through a rope. The rope connection is a flexible connection, such that
The ground wire clamp is in the process of approaching the lead, the rope is in a vertical state under the action of gravity, and the ground wire clamp is positioned under the orientation block
And the ground clamp is convenient for an operator to position.
Therefore, the invention has the following beneficial effects: (1) utilize telescopic link to form a logical that can swiftly convey earth clamp
The success rate of the connection between the grounding wire and the working section lead is greatly increased; (2) by means of the wire pushing device, the insulated wire can be effectively pushed
When having avoided the shake telescopic link with the 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. a telescopic rod 2, a hand-held 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 chute 13,
A shift lever 14, a gear 15, a rack 16, a second rod 17, a first spring 18, a first inclined surface 19, a second inclined surface 20,
A second sliding chute 21, a second spring 22, an orientation block 23, a grounding wire clamp 24, a target wire 25, a working section wire 26,
And a ground line.
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 extra-high voltage transmission line ground wire 26 hanging auxiliary device comprises an expansion link 1 made of an insulating material, one end of the expansion link 1 is a handheld end 2, the other end 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 expansion link 1 and the fixed pulley 4 and a second screw section 9 for guiding, a through hole is drilled at a corresponding position of the hanging end 3 of the expansion link 1, the first screw thread section of V type screw rod 5 passes the through-hole, passes simultaneously and links to each other fixed pulley 4, and fixed pulley 4 is located between telescopic link 1 and second screw rod section 9, and the free end of first screw thread section is fixed through nut 10 for rotate through V type screw rod 5 between fixed pulley 4 and the telescopic link 1 and be connected. 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 push away traditional thread binding putting on the telescopic link 1, the push away traditional thread binding putting includes first member 11, second member 16 and gear 14, first member 11 passes through the first spout 12 sliding connection of axial setting on the 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 a target wire 24 by adjusting the handheld end 2 of the telescopic rod 1, the target wire 24 is often an adjacent wire of a 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 directional block 22 are released, the directional block 22 falls under the action of gravity, when the directional block 22 falls to the lowest point, the insulating rope is pulled, the directional block 22 is gradually approached to the hanging end 3 through the fixed pulley 4, when the grounding wire clamp 23 hung below the directional 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, so that the active segment wire 25 is in a grounded 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 far 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 insulated wire 7 in the groove, so that the insulated wire 7 is separated from the fixed pulley 4, and at this time, the insulated wire is lapped and hung on the first screw rod section 8, by the operation of withdrawing the telescopic rod 1, the insulating rope is gradually slid down from the first screw section 8 to the second screw section 9, and finally is separated from the free end of the second screw section 9, so that the withdrawal of the telescopic rod 1 is completed, and only the insulating wire 7 and the orientation block 22 are left to be connected with the grounding wire clamp 23. The first lever 11 is released and the first lever 11 is reset by the first spring 17, during which the first ramp 18 presses against the second ramp 19 to reset the second lever 16, the second spring 21 returns to its compressed state and the gear 14 also rotates in the opposite direction to complete the reset.
Claims (5)
1. An auxiliary device for hanging an earth wire of an extra-high voltage transmission line comprises a telescopic rod and a wire hook hung with a target wire, and is characterized in that one end of the telescopic rod is a handheld end, the other end of the telescopic rod is a hanging end, the hanging end comprises a pulley mechanism and a transmission assembly matched with the pulley mechanism, the pulley mechanism comprises a fixed pulley and a V-shaped screw rod for fixing the fixed pulley, the V-shaped screw rod comprises a first screw rod section for penetrating the telescopic rod and the fixed pulley and a second screw rod section for guiding, the fixed pulley is positioned between the telescopic rod and the second screw rod section, the transmission assembly comprises an insulating rope and an orientation block fixedly connected with the insulating rope, a rope hole for penetrating the insulating rope is formed in the orientation block, and an earth clamp for fixing the earth wire is hung on the orientation block; 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 for resetting is arranged between the first rod piece and the telescopic rod, a first inclined surface 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 surface matched with the first inclined surface is arranged at the first 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, and the gear is meshed with the rack; the orientation block and the fixed pulley are respectively made of polyvinyl chloride plastics.
2. The auxiliary device for hanging the grounding wire of the extra-high voltage transmission line of claim 1, wherein 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.
3. 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.
4. The auxiliary device for hanging the ground wire of the extra-high voltage transmission line according to claim 3, wherein a second chute is arranged in the telescopic rod, the second chute is communicated with the first chute, the cross section of the second chute is polygonal, the second rod is positioned in the second chute, and the second rod is attached to the inner wall of the second chute.
5. The auxiliary device for hanging the grounding wire of the extra-high voltage transmission line according to any one of claims 1 to 4, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111403926A CN111403926A (en) | 2020-07-10 |
| CN111403926B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| 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 |
| CN208655932U (en) * | 2018-09-07 | 2019-03-26 | 国家电网公司 | A kind of ground line non-jitter dress removes device |
| 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 |
-
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 |
| CN208655932U (en) * | 2018-09-07 | 2019-03-26 | 国家电网公司 | A kind of ground line non-jitter dress removes device |
| 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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| CN111403926A (en) | 2020-07-10 |
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