CN109066131B - Self-locking high-voltage line grounding device - Google Patents

Self-locking high-voltage line grounding device Download PDF

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Publication number
CN109066131B
CN109066131B CN201811044502.9A CN201811044502A CN109066131B CN 109066131 B CN109066131 B CN 109066131B CN 201811044502 A CN201811044502 A CN 201811044502A CN 109066131 B CN109066131 B CN 109066131B
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China
Prior art keywords
shaped
rod
clamping plate
locking
upper clamping
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Application number
CN201811044502.9A
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Chinese (zh)
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CN109066131A (en
Inventor
徐学兵
王从显
李长胜
罗胤
靳国云
董政淼
王坤
曹永闯
赵俊杰
杨恒乐
秦连乐
贾强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Tianchi Pumped Storage Co ltd
State Grid Corp of China SGCC
State Grid Xinyuan Co Ltd
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Henan Tianchi Pumped Storage Co ltd
State Grid Corp of China SGCC
State Grid Xinyuan Co Ltd
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Application filed by Henan Tianchi Pumped Storage Co ltd, State Grid Corp of China SGCC, State Grid Xinyuan Co Ltd filed Critical Henan Tianchi Pumped Storage Co ltd
Priority to CN201811044502.9A priority Critical patent/CN109066131B/en
Publication of CN109066131A publication Critical patent/CN109066131A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/22End pieces terminating in a spring clip
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12End pieces terminating in an eye, hook, or fork
    • H01R11/14End 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

The invention belongs to the technical field of grounding tools for electric high-voltage wires, and particularly relates to a self-locking high-voltage wire grounding device. The clamping mechanism comprises a fixed lower clamping plate and a double-parallel fork-shaped upper clamping plate which are arranged at the upper end of the main rod, an area enclosed by the fixed lower clamping plate and the double-parallel fork-shaped upper clamping plate is a locking groove, and a tension spring is connected to the bottom of the groove; the long handle section of the L-shaped lock rod is provided with a shaft hole and sleeved on the first pin shaft, the L-shaped lock rod is positioned in a fit clearance of the double-parallel fork-shaped upper clamping plate, the region of the insulating handle of the main rod is hinged with an L-shaped bent rod through a second pin shaft, and a pull rope is connected between the short handle end of the L-shaped bent rod and the swing rod driving section. The invention has very simple operation, and after the locking groove is clamped on the metal tower, the L-shaped locking rod can be automatically contracted by loosening the insulating handle of the curved rod, so that the locking groove is in a closed state, and the device is prevented from falling off from the tower. The invention is easy to produce and manufacture, has strong practicability and is suitable for popularization and application.

Description

Self-locking high-voltage line grounding device
Technical Field
The invention belongs to the technical field of grounding tools for electric high-voltage wires, and particularly relates to a self-locking high-voltage wire grounding device.
Background
The high-voltage grounding wire is used for line transformation and power transformation construction, and safety is guaranteed when a near-charged body is prevented from generating electrostatic induction electric shock or false switching on. The existing common high-voltage grounding wire operating device has the advantages that a grounding clamp pressing head is connected with an operating rod of the whole grounding wire, a movable part is a grounding clamp clamping mechanism, the operating rod can only be held during use, the clamping mechanism is controlled by rotating action, and therefore the rotating operation is realized by means of the thread principle to push and withdraw the axis of a shaft core rod. Moreover, the existing structure causes limitation in erection of the ground wire, the ground wire structure applied in power failure maintenance of the power transmission line has the problems of insecure wire clamp mechanism and increased maintenance time, and the falling phenomenon is easily caused by wind blowing or swinging, so that the ground wire structure cannot be effectively grounded, the danger of falling from the high altitude can be caused, and certain safety risk is realized.
Disclosure of Invention
The invention provides a self-locking high-voltage wire grounding device which can better disassemble and assemble a grounding wire and reduce the operation risk, aiming at the problems that the existing high-voltage wire grounding tool has low working efficiency and increases the maintenance time due to poor operation flexibility and the problem that a wire clamp mechanism is not firm and is easy to fall off due to wind blowing or swinging.
The technical scheme adopted by the invention provides a self-locking high-voltage wire grounding wire device, which comprises an insulating main rod, a clamping mechanism and a main rod insulating handle, wherein the back of the clamping mechanism is connected with a ground wire lead, the clamping mechanism comprises a fixed lower clamping plate and a double-parallel fork-shaped upper clamping plate which are arranged at the upper end of the main rod, the area enclosed by the fixed lower clamping plate and the double-parallel fork-shaped upper clamping plate is a locking groove, an axis spring groove is arranged at the axis position of a groove bottom connecting rod section of the locking groove between the; the double parallel fork-shaped upper clamping plates comprise two upper clamping plates which are parallel and have a fit gap, the back surfaces of the double parallel fork-shaped upper clamping plates extend outwards to form a rear support, and a first pin shaft is mounted on the rear support; the long handle section of one L-shaped lock rod is provided with a shaft hole and is sleeved on the first pin shaft, and the L-shaped lock rod is positioned in a fit clearance of the double parallel fork-shaped upper clamping plates; the tail end of the long handle section of the L-shaped lock rod, which is positioned outside the first pin shaft, is used as a swing rod driving section, and the long handle section is positioned in the inner part of the first pin shaft and is provided with a hanging hole and connected with the tail end of the tension spring; the short handle section of the L-shaped lock rod can transversely seal the notch of the locking groove in a contracting state; meanwhile, an L-shaped curved bar is hinged in the area of the main rod insulating handle through a second pin shaft, a curved bar insulating handle is sleeved at the tail end of a long handle of the L-shaped curved bar, and a pull rope is connected between the short handle end of the L-shaped curved bar and the swing rod driving section.
Furthermore, a rope sleeve is fixed on the back of the insulating main rod, and the pull rope is positioned in the rope sleeve. And an inverted tooth-shaped structure can be arranged on the inner side of the short handle section of the L-shaped lock rod.
The device is very simple to operate, the L-shaped locking rod can be unfolded by pulling the distance between the main rod insulating handle and the curved rod insulating handle, the locking groove can be released after the L-shaped locking rod is unfolded, and the L-shaped locking rod can be automatically contracted by loosening the curved rod insulating handle after the locking groove is clamped on the metal tower, so that the locking groove is in a closed state, and the device is prevented from falling off the tower. The L-shaped locking rod has an automatic contraction function under the action of the tension spring, so that the locking groove can be kept to be firmly and tightly attached to the truss of the tower frame.
In the device, the long handle section of the L-shaped curved lever is hidden inside the double-parallel-fork-shaped upper clamping plate, and the short handle end of the L-shaped curved lever is in a laterally exposed state, so the double-parallel-fork-shaped upper clamping plate bears the dead weight of the device and the ground wire. Even if the device swings due to wind blowing or collision, the device cannot fall off, and in the swinging state, the short handle end of the L-shaped curved bar is weak in lateral force and cannot be unfolded automatically when being laid down, so that the device cannot fall off no matter how the device swings.
The invention further provides a rope sleeve which is beneficial to smooth traction and driving, and the inner side of the short handle end of the L-shaped curved rod is provided with the inverted tooth structure which can clamp and fix the steel of the tower frame, so that the locking degree is further improved, and the scheme is optimized and beneficial to practical application. The invention is easy to produce and manufacture, has strong practicability and is suitable for popularization and application.
Drawings
Fig. 1 is a schematic view of the locking state of the device of the present invention.
Fig. 2 is a schematic view of the device of the present invention in an expanded state.
Fig. 3 is a schematic view of the structure in the direction a in fig. 1.
FIG. 4 is a schematic diagram of the clamping mechanism of the apparatus of the present invention in comparison to gravity and lateral forces.
Reference numbers in the figures: 1 is insulating mobile jib, 2 is cardboard under fixed, 3 is cardboard on the two parallel forked forms, 4 are the locking groove, 5 are the back support, 6 are round pin axle one, 7 are L type locking levers, 8 are pendulum rod drive section, 9 are the rope sleeve, 10 are the stay cord, 11 are round pin axle two, 12 are L type curved bar, 13 are curved bar insulated handle, 14 are axle center spring groove, 15 are the extension spring, 16 are tank bottom connecting rod section, 17 are mobile jib insulated handle, 18 are the ground wire lead wire.
Detailed Description
As shown in fig. 1 and 2, in the self-locking high-voltage ground wire device, the front end of the insulating main rod 1 is a clamping mechanism, the rear end is a main rod insulating handle 17, the back of the clamping mechanism is connected with a ground wire lead 18, and the insulating main rod 1 is provided with an L-shaped curved rod 12 and a curved rod insulating handle 13 which are provided with auxiliary functions. The distance between the main rod insulating handle 17 and the curved bar insulating handle 13 is drawn close to realize the unfolding of the L-shaped locking rod 7, the locking groove 4 can be released after the L-shaped locking rod 7 is unfolded, the locking groove 4 is clamped on the metal tower, and the curved bar insulating handle 13 is loosened to enable the L-shaped locking rod 7 to automatically contract, so that the locking groove is in a closed state, and the device is prevented from falling off from the tower.
Wherein, latch mechanism is including setting up cardboard 2, two parallel fork form go up cardboard 3 and tank bottom connecting rod section 16 under the fixed cardboard 2 of mobile jib upper end, and the region that cardboard 3 enclosed is locking groove 4 under fixed cardboard 2, two parallel fork form. An axis spring groove 14 is arranged at the axis position of a groove bottom connecting rod section 16 of a locking groove 4 between the fixed lower clamping plate 2 and the double parallel fork-shaped upper clamping plate 3, and a tension spring 15 is connected at the groove bottom, namely, the spring is hidden in the axis. The L-shaped locking bar 7 has an automatic retraction function under the action of the tension spring 15, so that the locking groove 4 can be kept firmly and tightly attached to the truss of the tower.
As shown in fig. 3, the double parallel fork-shaped upper card 3 includes two upper cards which are parallel and have a fitting gap. The back of cardboard 3 on two parallel fork forms outwards extends respectively and forms two parallels and have the rear support 5 of fit clearance, and transverse installation has a round pin axle 6 on the rear support 5.
The L-shaped lock rod 7 comprises a long handle section and a section handle section, and the long handle section of the L-shaped lock rod 7 is provided with a shaft hole which is sleeved on the first pin shaft 6. The L-shaped lock rod 7 is positioned in the fit clearance of the double parallel fork-shaped upper clamping plate 3. The inner side of the short handle section of the L-shaped lock rod 7 can be provided with a pawl-shaped structure, and the device can be clamped and fixed on tower steel by utilizing the pawl-shaped structure, so that the locking degree is further improved.
Meanwhile, the tail end of the long handle section of the L-shaped lock rod 7, which is positioned outside the first pin shaft 6, is used as a swing rod driving section 8, and the inner part of the long handle section, which is positioned inside the first pin shaft 6, is provided with a hanging hole and is connected with the tail end of the tension spring 15. The short handle section of the L-shaped locking rod 7 can transversely seal the notch of the locking groove 4 in the contraction state.
Because the long handle section of the L-shaped locking rod 7 is hidden inside the double parallel fork-shaped upper clamping plate 3, and the short handle end of the L-shaped locking rod 7 is in a lateral exposed state, the double parallel fork-shaped upper clamping plate 3 bears the dead weight of the device and the ground wire.
An L-shaped curved bar 12 is hinged in the area of the main bar insulating handle 17 through a pin shaft II 11, a curved bar insulating handle 13 is sleeved at the tail end of a long handle of the L-shaped curved bar 12, and a pull rope 10 is connected between the short handle end of the L-shaped curved bar 12 and the swing bar driving section 8. In order to protect the pull rope 10 and ensure the normal transmission function, a rope sleeve 9 is fixed on the back surface of the insulating main rod 1, and the pull rope 10 is positioned in the rope sleeve 9.
Under the normal state, the device is in a relatively stable state under the self-weight and the traction state of the ground wire lead, and the double-parallel fork-shaped upper clamping plate bears all gravity supports. As shown in fig. 4, when the device swings due to wind or collision, the double parallel fork-shaped upper clamping plate of the device mainly bears heavy downward traction force G, and the lateral force F is very weak. From the structure of the L-shaped lock rod 7 and the installation angle relation between the L-shaped lock rod and the rear support, the lateral stress F of multiple times can reach the initial starting force F0 of the L-shaped lock rod 7, and because the lateral stress F is far smaller than the traction force G which drives the upper clamping plate of the double parallel fork-shaped upper clamping plate to mainly bear the weight downward, the structure can not cause the falling problem due to the swinging of the device, and in the swinging state, the lateral force applied to the short handle end of the L-shaped curved rod 12 is very weak, and the L-shaped curved rod 12 cannot be driven to automatically unfold after being put down, so the device cannot fall off no matter how the device swings.

Claims (2)

1. The utility model provides a from locking-type high-voltage line earth connection device, includes insulating mobile jib and latch mechanism and mobile jib insulating handle, latch mechanism back connection ground wire lead wire, characterized by: the clamping mechanism comprises a fixed lower clamping plate and a double parallel fork-shaped upper clamping plate which are arranged at the upper end of the main rod, the area enclosed by the two clamping plates is a locking groove, an axis spring groove is arranged at the axis position of a groove bottom connecting rod section of the locking groove between the two clamping plates, and a tension spring is connected to the groove bottom; the double parallel fork-shaped upper clamping plates comprise two upper clamping plates which are parallel and have a fit gap, the back surfaces of the double parallel fork-shaped upper clamping plates extend outwards to form a rear support, and a first pin shaft is mounted on the rear support; the long handle section of the L-shaped lock rod is provided with a shaft hole and is sleeved on the first pin shaft, the L-shaped lock rod is positioned in a fit gap of the double-parallel fork-shaped upper clamping plate, the long handle section of the L-shaped lock rod is hidden in the inner side of the double-parallel fork-shaped upper clamping plate, and the short handle end of the L-shaped lock rod is in a laterally exposed state; the tail end of the long handle section of the L-shaped lock rod, which is positioned outside the first pin shaft, is used as a swing rod driving section, and the long handle section is positioned in the inner part of the first pin shaft and is provided with a hanging hole and connected with the tail end of the tension spring; the short handle section of the L-shaped lock rod can transversely seal the notch of the locking groove in a contracting state, and an inverted tooth-shaped structure is arranged on the inner side of the short handle section of the L-shaped lock rod; meanwhile, an L-shaped curved bar is hinged in the area of the main rod insulating handle through a second pin shaft, a curved bar insulating handle is sleeved at the tail end of a long handle of the L-shaped curved bar, and a pull rope is connected between the short handle end of the L-shaped curved bar and the swing rod driving section.
2. The self-locking high-voltage grounding wire device of claim 1, wherein: and a rope sleeve is fixed on the back of the insulating main rod, and the pull rope is positioned in the rope sleeve.
CN201811044502.9A 2018-09-07 2018-09-07 Self-locking high-voltage line grounding device Active CN109066131B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811044502.9A CN109066131B (en) 2018-09-07 2018-09-07 Self-locking high-voltage line grounding device

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Application Number Priority Date Filing Date Title
CN201811044502.9A CN109066131B (en) 2018-09-07 2018-09-07 Self-locking high-voltage line grounding device

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CN109066131A CN109066131A (en) 2018-12-21
CN109066131B true CN109066131B (en) 2020-05-05

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112530717A (en) * 2020-11-18 2021-03-19 广东电网有限责任公司 Telescopic insulating rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103022752A (en) * 2013-01-06 2013-04-03 辽宁省电力有限公司铁岭供电公司 Hanging hook type grounding wire with locking port
CN104734068A (en) * 2015-04-10 2015-06-24 国家电网公司 Distributing line foreign matter insulation removal device
CN204792498U (en) * 2015-07-10 2015-11-18 南京梅山冶金发展有限公司 High pressure order gram stick
CN208939175U (en) * 2018-09-07 2019-06-04 国家电网有限公司 Self-locking type high voltage line grounding wire device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103022752A (en) * 2013-01-06 2013-04-03 辽宁省电力有限公司铁岭供电公司 Hanging hook type grounding wire with locking port
CN104734068A (en) * 2015-04-10 2015-06-24 国家电网公司 Distributing line foreign matter insulation removal device
CN204792498U (en) * 2015-07-10 2015-11-18 南京梅山冶金发展有限公司 High pressure order gram stick
CN208939175U (en) * 2018-09-07 2019-06-04 国家电网有限公司 Self-locking type high voltage line grounding wire device

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