CN109066126B - Universal lead grounding device for power transmission line - Google Patents
Universal lead grounding device for power transmission line Download PDFInfo
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- CN109066126B CN109066126B CN201811022519.4A CN201811022519A CN109066126B CN 109066126 B CN109066126 B CN 109066126B CN 201811022519 A CN201811022519 A CN 201811022519A CN 109066126 B CN109066126 B CN 109066126B
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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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- 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
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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
- H01R11/22—End pieces terminating in a spring clip
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention provides a universal wire grounding device for a power transmission line, and relates to the technical field of ultrahigh voltage maintenance equipment. The device comprises an angle steel fixing seat, a clamping device and a control device; the clamping device comprises a hook, the hook comprises a connecting part and a hook part, the hook part is a hook-shaped object which is formed by integrally forming a left half hook and a right half hook and is provided with an opening, and the connecting part is connected with the left half hook; the right half hook is provided with a right clamping jaw, and the left half hook is provided with a left clamping jaw and a stroke adjusting block; the control device comprises a control device body, and the lower end of the control device body is connected with the upper end of the connecting part of the hook through a wire braid; the control device is connected with the left side of the third stress part through a control line, and the control device is used for rotating the third stress part by pulling the control line so as to enable the left clamping jaw and the right clamping jaw to clamp the lead. When the device clamps the wires, the clamping is firm, the wires are not easy to fall off, and the device can adapt to the wires with different wire diameters.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of ultrahigh voltage maintenance equipment, in particular to a universal wire grounding device for a power transmission line.
[ background ] A method for producing a semiconductor device
When the power transmission line is subjected to power failure maintenance operation, the technical measures for ensuring safety are to assemble and disassemble the grounding wire. At present, most of short-circuit grounding wire clamps used for alternating current and direct current lines with the voltage level of over 500kV in China are impact type and tongue type compression type wire clamps, and due to the inherent structural and principle defects of the wire clamps, potential safety hazards exist that the wire clamps are not firm in contact with wires and are easy to fall off due to impact or pulling. In addition, according to the notification of southern power grid company about the implementation of grounding wires, the practical management of personal security wires and the supplementary regulations, the grounding wires or the personal security wires must be bolt-fastened or other wire clamps with locking functions, and the impact duckbill wire clamps and the tongue-type compression wire clamps are completely stopped before 2017, 12 and 31 days. At present, a general type lead grounding device for a super (special) high-voltage transmission line needs to be researched to meet the requirement of safe production.
[ summary of the invention ]
The invention aims to: aiming at the existing problems, the universal wire grounding device for the power transmission line is provided, when the device provided by the invention clamps the ground wire, the clamping is firm, the ground wire is not easy to fall off, and the device can adapt to wires with different wire diameters.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the universal wire grounding device for the power transmission line comprises an angle steel fixing seat, a clamping device and a control device, wherein the angle steel fixing seat is used for being hung on angle steel of a high-voltage iron tower; the clamping device comprises a hook, the hook comprises a connecting part and a hook part, the hook part is a hook-shaped object which is formed by integrally forming a left half hook and a right half hook and is provided with an opening, and the connecting part is connected with the left half hook; the right half hook is provided with a right clamping jaw, and the left half hook is provided with a left clamping jaw and a stroke adjusting block;
the right clamping jaw comprises a first clamping part, a first rotating shaft part and a first stress part, the first rotating shaft part is connected with the first clamping part and the first stress part, and the first rotating shaft part is used for enabling the right clamping jaw to be rotationally connected to the right half hook by taking a first pin shaft as a shaft; the first stress part is connected with a first tension spring, the first clamping part partially protrudes out of the inner side surface of the right half hook when the grounding device does not work, and when the grounding device works, the first clamping part is pressed by a lead to elongate and deform the first tension spring;
the left clamping jaw comprises a second clamping part, a second rotating shaft part and a second stress part, an included angle between the main axis of the second clamping part and the main axis of the second stress part along the clockwise direction is less than 180 degrees, the second rotating shaft part is connected with the second clamping part and the second stress part, and the second rotating shaft part is used for enabling the left clamping jaw to be rotatably connected to the left half hook by taking a second pin shaft as a shaft; the clamping surface of the second clamping part is an arc surface, and the clamping surface of the second clamping part is arranged opposite to the clamping surface of the first clamping part;
the stroke adjusting block comprises a third rotating shaft part, a third stress part and a limiting part; the main axis of the limiting part forms an included angle of 80-160 degrees with the main axis of the third stress part along the clockwise direction; the third rotating shaft part is connected with a third stress part and a limiting part and is used for enabling the stroke adjusting block to be rotatably connected to the right half hook by taking a third pin shaft as a shaft; the limiting part is positioned right below the second stress part and is mutually attached, a limiting through hole is formed in the limiting part, a supporting spring is arranged below the limiting through hole, the size of the cross section of the supporting spring is larger than that of the through hole, the second stress part is connected with an annular screw rod, and the annular screw rod is connected with a locking nut after penetrating through the limiting through hole and the supporting spring;
the control device comprises a control device body, the side face of the control device body is provided with the angle steel fixing seat, and the lower end of the control device body is connected with the upper end of the connecting part of the hook through a wire braid; the control device is connected with the left side of the third force-bearing part through a control line, and the control device is used for realizing the rotation of the third force-bearing part by pulling the control line.
Preferably, the control device further comprises a slide bar, a slide bar guide groove, a slide bar pressure spring and a slide bar limiting device; the vertical seting up of slide bar guide way the controlling means body is on the surface, slide bar pressure spring and slide bar setting are in the slide bar guide way, and the upper end of slide bar guide way and the upper end of slide bar are connected respectively to the both ends of slide bar pressure spring, and the lower extreme of slide bar is connected the control line still is equipped with spacing draw-in groove on one side of slide bar lower part, slide bar stop device be used for with spacing draw-in groove match will the slide bar restriction is in the high position.
Preferably, the sliding rod limiting device comprises a sliding rod limiting column, a limiting pressure spring and an unlocking lifting handle, the sliding rod limiting column is connected in the control device body in a sliding mode, and the sliding direction of the sliding rod limiting column is perpendicular to the sliding rod; the unlocking pulling handle is arranged on the surface of the control device body in a covering mode, one end of the sliding rod limiting column is in contact with the sliding rod and can be matched with the limiting clamping groove, and a limiting pressure spring in a compressed state is arranged between the other end of the sliding rod limiting column and the unlocking pulling handle.
Preferably, a torsion spring is arranged between the second rotating shaft part and the hook part.
Preferably, the couple is inside to be equipped with the cavity, the lower part of control line, right clamping jaw, left clamping jaw and stroke control piece all set up in the cavity of couple, still set up the passageway that supplies first clamping part, second clamping part, stroke control piece rotation business turn over on the couple body.
Preferably, the hook is internally provided with a plurality of guide pillars for guiding the stress direction of the control line to avoid other parts in the hook.
Preferably, the wire braid is sequentially provided with an outer insulating sheath layer, a conductive braid layer and an inner insulating sheath layer from outside to inside.
Preferably, the inner insulating sheath layer is of a hollow structure, and the control line is arranged in the inner insulating sheath layer.
Preferably, the slide bar is further connected with a slide bar handle, and the slide bar handle is arranged outside the control device body.
Preferably, the angle steel fixing base includes shape of falling L support arm and fastening bolt, and the shape of falling L support arm includes horizontal pole and montant, the horizontal pole with controlling means body fixed connection makes form the accommodation space of angle steel between shape of falling L support arm and the controlling means body, set up the fixed orifices on the montant, fastening bolt passes through the fixed orifices and installs on the montant.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the lead grounding device, the stroke adjusting block is pulled through the traction control line, the stroke adjusting block presses the supporting spring, the supporting spring generates pressure on the locking nut and the annular screw, the annular screw drives the left clamping jaw to rotate, so that the lead is extruded by the left clamping jaw, when the lead is extruded to press the right clamping jaw, the first clamping part of the right clamping jaw is pressed by the lead to elongate and deform the first tension spring, and the first tension spring forms counter-tension on the first clamping part, so that the lead is clamped.
2. The wire grounding device provided by the invention can clamp wires with different thicknesses through the matching of the stroke adjusting block, the annular screw and the locking nut, and when the wire grounding device is used, the deformation of the supporting spring is adjusted by screwing the locking nut on the annular screw, and the adjustment of the clamping force for clamping the wires can be realized, so that when the wires with different diameters are clamped, firm clamping can be ensured, and the wires are effectively prevented from falling off.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a universal wire grounding device for a power transmission line according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a control device provided in an embodiment of the present invention.
Fig. 3 is a partially enlarged view of a clamping device provided in an embodiment of the present invention.
Fig. 4 is a schematic view of a working state of the universal wire grounding device for the power transmission line provided by the embodiment of the invention when clamping a wire with a large wire diameter.
Fig. 5 is a schematic view of a working state of the universal wire grounding device for the power transmission line provided by the embodiment of the invention when clamping a small-size wire diameter wire.
Wherein, 1-angle steel fixing seat, 11-cross bar, 12-vertical bar, 13-fastening bolt; 2-a control device, 21-a slide bar compression spring, 22-a slide bar guide groove, 23-a slide bar, 24-a slide bar limiting device, 241-an unlocking lifting handle, 242-a limiting compression spring, 243-a slide bar limiting column, 25-a slide bar handle and 26-a control device body; 3-braiding wires; 4-clamping device, 41-connecting part, 42-left half hook, 43-right half hook, 431-first clamping part, 432-first rotating shaft part, 433-first force-bearing part, 434-first tension spring, 44-left clamping jaw, 441-second clamping part, 442-second rotating shaft part, 443-second force-bearing part, 45-stroke adjusting block, 451-third rotating shaft part, 452-third force-bearing part, 453-limiting part, 46-supporting spring, 47-locking nut, 48-ring screw, 5-torsion spring, 6-angle steel and 7-lead.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The drawings are only for illustrative purposes and are shown schematically rather than in actual drawings, which should not be construed as limiting the patent, and in order to better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged or reduced, which do not represent the size of an actual product, and it is understood that some well-known structures, components and descriptions thereof in the drawings may be omitted for persons skilled in the art, and all other embodiments obtained by persons skilled in the art without inventive labor based on the embodiments of the present invention belong to the scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
As shown in fig. 1, 2, and 3, the universal wire grounding device for power transmission lines includes an angle steel fixing base 1 for being hung on an angle steel of a high-voltage iron tower, a clamping device 4 for fixing a wire, and a control device 2 for controlling the clamping device. The clamping device 4 comprises a hook, the hook comprises a connecting part 41 and a hook part, the hook part is a hook with an opening formed by integrally molding a left half hook 42 and a right half hook 43, and the connecting part 41 is connected with the left half hook 42; a right clamping jaw is arranged on the right half hook 43, and a left clamping jaw 44 and a stroke adjusting block 45 are arranged on the left half hook 42;
the right clamping jaw comprises a first clamping part 431, a first rotating shaft part 432 and a first force receiving part 433, the first rotating shaft part 432 is connected with the first clamping part 431 and the first force receiving part 433, and the first rotating shaft part 432 is used for enabling the right clamping jaw to be rotatably connected to the right half hook 43 by taking a first pin shaft as an axis; the first force receiving portion 433 is connected with a first tension spring 434, the first clamping portion 431 partially protrudes out of the inner side surface of the right half hook 43 when the grounding device does not work, and when the grounding device works, the first clamping portion 431 can be pressed by a wire to elongate and deform the first tension spring 434. To realize this function, it is only necessary that the direction of the tension of the first tension spring on the first force receiving portion 433 is opposite to the direction of the clamping force of the first clamping portion 431 clamping the wire, and those skilled in the art can deform the specific structure according to this function.
The left clamping jaw 44 comprises a second clamping portion 441, a second rotating shaft portion 442 and a second force receiving portion 443, an included angle between the main axis of the second clamping portion 441 and the main axis of the second force receiving portion 443 is less than 180 degrees, the second rotating shaft portion 442 is connected with the second clamping portion 441 and the second force receiving portion 443, and the second rotating shaft portion 442 is used for enabling the left clamping jaw 44 to be rotatably connected to the left half hook 42 by taking a second pin shaft as an axis; the clamping surface of the second clamping portion 441 used for clamping the wire is an arc surface, preferably, the clamping surface of the second clamping portion 441 is semicircular, the clamping surface of the first clamping portion 431 is arc-shaped, and the clamping surface of the second clamping portion 441 is opposite to the clamping surface of the first clamping portion 431.
The stroke adjusting block 45 comprises a third rotating shaft part 451, a third force bearing part 452 and a limiting part 453; the included angle between the main axis of the limiting part 453 and the main axis of the third stress part 452 is 80-160 degrees in the clockwise direction; the third rotating shaft part 451 is connected with the third force receiving part 452 and the limiting part 453, and the third rotating shaft part 451 is used for enabling the stroke adjusting block 45 to be rotationally connected to the right half hook 43 by taking a third pin shaft as a shaft; the limiting part 453 is positioned right below the second force-bearing part 443 and is attached to the second force-bearing part 443, a limiting through hole is formed in the limiting part 453, a supporting spring 46 is arranged below the limiting through hole, the cross section of the supporting spring 46 is larger than that of the through hole, the second force-bearing part 443 is connected with an annular screw 48, and the annular screw 48 penetrates through the limiting through hole and the supporting spring 46 and then is connected with a locking nut;
the control device 2 comprises a control device body 26, the angle steel fixing seat 1 is arranged on the side face of the control device body 26, and the lower end of the control device body 26 is connected with the upper end of the connecting part 41 of the hook through a lead braid 3; the control device 2 is connected to the left side of the third force-receiving part 452 by a control line, and the control device 2 is used to rotate the third force-receiving part 452 by pulling the control line. In this embodiment, the control wire is in a state of being just tensioned when the present grounding device is not in operation.
Through the arrangement, when the control device 2 pulls the control line, the left side of the third stress part 452 of the stroke adjusting block 45 is stressed, so that the stroke adjusting block 45 and the left clamping jaw 44 rotate clockwise around the second rotating shaft, when the left clamping jaw 44 clamps the lead and can not rotate any more, the stroke adjusting block 45 continues to be stressed and starts to rotate clockwise around the third rotating shaft, the limiting part 453 generates pressure on the supporting spring 46, the supporting spring 46 generates thrust on the locking nut, and therefore the second stress part 443 of the left clamping jaw is pulled through the annular screw 48 to clamp the lead more tightly.
The control device 2 of the present embodiment preferably has the following structure: the device also comprises a slide bar 23, a slide bar guide groove 22, a slide bar compression spring 21 and a slide bar limiting device 24; the vertical seting up of slide bar guide way 22 the controlling means body 26 is on the surface, slide bar pressure spring 21 and slide bar setting are in slide bar guide way 22, and the upper end of slide bar guide way 22 and the upper end of slide bar 23 are connected respectively at the both ends of slide bar pressure spring 21, and the lower extreme of slide bar 23 is connected the control line still is equipped with spacing draw-in groove on one side of slide bar 23 lower part, slide bar stop device 24 be used for with spacing draw-in groove match will slide bar 23 restriction is in the high position. Preferably, a torsion spring 5 is arranged between the second rotating shaft part and the hook part, the torsion spring 5 is used for enabling the left clamping jaw 44 to be in an open state relative to the right clamping jaw when the grounding device does not work, and the left clamping jaw 44 can automatically reset after the sliding rod 23 is relieved from limiting.
In this embodiment, the control line is in the state of just straining under the effort that torsional spring 5 torque arm acted on left clamping jaw 44 when this earthing device is out of operation, and left clamping jaw 44 is in the state of opening the wire of treating the centre gripping this moment. The stroke of the slide bar is fixed, and the preset stroke of the slide bar meets the requirement that when the left clamping jaw 44 clamps the lead and can not rotate any more, the slide bar can also pull the control line to enable the stroke adjusting block 45 to extrude the supporting spring 46 to rotate clockwise around the third rotating shaft, and the rotating angle reaches 0-60 degrees. Through the arrangement, during operation, the sliding rod 23 is pushed to slide upwards, the sliding rod 23 pulls the control line upwards and simultaneously pulls the left side of the third stress part 453 of the stroke adjusting block 45, so that clockwise rotation of the left jaw clamp is realized, and the clamping of a lead can be realized; after the left jaw clamp is clamped and can not rotate continuously, the stroke adjusting block 45 automatically adjusts and changes the angle of the stroke adjusting block according to the clamped wires with different diameters, so that the clamping of the wires with different diameters is met, the sliding rod 23 is limited at a high position until the sliding rod limiting device 24 is clamped in the limiting clamping groove, and the wires are firmly clamped in the clamping jaw at the moment.
In this embodiment, a sliding rod handle 25 is preferably further connected to the sliding rod 23, and the sliding rod handle 25 is disposed outside the control device body 26, so as to facilitate pushing the sliding rod 23.
As shown in fig. 2, it is preferable that the sliding rod limiting device 24 of this embodiment includes a sliding rod limiting column 243, a limiting pressure spring 242, and an unlocking pulling handle 241, wherein the sliding rod limiting column 243 is slidably connected in the control device body 26, and the sliding direction of the sliding rod limiting column 243 is perpendicular to the sliding rod 23; the unlocking pulling handle 241 is covered and installed on the surface of the control device body 26, one end of the slide rod limiting column 243 is in contact with the slide rod 23 and can be matched with the limiting clamping groove, and a limiting pressure spring 242 in a compressed state is arranged between the other end of the slide rod limiting column 243 and the unlocking pulling handle 241. Through the arrangement, when the slide rod 23 is pushed to slide upwards in operation, the slide rod is in friction contact with the slide rod limiting post 243, and when the limiting clamping groove slides over the slide rod limiting post 243, the slide rod limiting post 243 is clamped into the limiting clamping groove to lock the slide rod at a high position. When the limit of the slide bar needs to be released, the unlocking lifting handle 241 is pulled outwards, and the slide bar limiting column 243 is pulled out to be separated from the limiting clamping groove, so that the operation is very simple.
Preferably, a torsion spring 5 is arranged between the second rotating shaft part and the hook part, the torsion spring 5 is used for enabling the left clamping jaw 44 to be in an open state relative to the right clamping jaw when the grounding device does not work, and the left clamping jaw 44 can automatically reset after the sliding rod 23 is relieved from limiting.
Preferably, a cavity is formed in the hook, the lower portion of the control line, the right clamping jaw, the left clamping jaw 44 and the stroke adjusting block 45 are all arranged in the cavity of the hook, and a channel for the first clamping portion 431, the second clamping portion 441 and the stroke adjusting block 45 to rotate to enter and exit is further formed in the hook body.
Preferably, a plurality of guide pillars are further arranged in the hook and used for guiding the stress direction of the control line so as to avoid other parts in the hook.
Preferably, the lead braid 3 is an outer insulating sheath layer, a conductive braid layer and an inner insulating sheath layer from outside to inside in sequence, and the structure can play an insulating protection role and prevent workers from electric shock. This embodiment is still preferred interior insulating sheath layer is hollow structure, the control line sets up in interior insulating sheath layer, makes overall structure compacter pleasing to the eye.
Preferably angle steel fixing base 1 includes shape of falling L support arm and fastening bolt 13, and the shape of falling L support arm includes horizontal pole 11 and montant 12, horizontal pole 11 with controlling means body 26 fixed connection makes form the accommodation space of angle steel between shape of falling L support arm and the controlling means body 26, set up the fixed orifices on montant 12, fastening bolt 13 passes through the fixed orifices and installs on montant 12.
When the wire 7 with a large wire diameter is clamped, the sliding rod handle 25 is manually lifted upwards, and the control wire is pulled to move upwards for a certain stroke, as shown in fig. 4. At this moment, by the drawing of control line, draw stroke regulating block 45 and left clamping jaw 44 and swing certain angle around the second round pin axle clockwise, extrude the wire, when being extruded by the wire to pushing down right clamping jaw, the first clamping part 431 of right clamping jaw is pressed by the wire will first extension spring elongates and warp, and first extension spring forms counter-tension to first clamping part 431 to make left clamping jaw 44 and right clamping jaw press from both sides the wire together. After the left clamping jaw 44 clamps the wire, at this time, the sliding-bar handle 25 does not ascend and move to the position clamped by the limiting block, and still needs to continue to move upwards, while moving, the stroke adjusting block 45 and the left clamping jaw 44 are continuously pulled, at this time, the wire is clamped by the left clamping jaw 44 and cannot move elastically, the stroke adjusting block 45 starts to rotate around the third pin shaft under the action of traction force, the limiting part 453 of the stroke adjusting block gradually gets away from the second force-bearing part 443 of the left clamping jaw 44, and forms a certain included angle with the second force-bearing part 443 of the left clamping jaw 44 until the sliding-bar handle 25 moves upwards to be limited by the sliding-bar limiting device 24, and the clamping of the wire with a large wire diameter is completed.
As shown in fig. 5, the small diameter wire 7 is held as with the large diameter wire, except that the left jaw 44 is rotated clockwise about the second pin by a larger angle than when holding the large diameter wire. When the left clamping jaw 44 and the right clamping jaw clamp the wire with a small wire diameter together, an included angle formed between the limiting portion 453 of the stroke adjusting block 45 and the second force-bearing portion 443 of the left clamping jaw 44 is smaller than an included angle for clamping the wire with a large wire diameter. Therefore, the wires with different wire diameters can be clamped by the elastic included angle formed by the stroke adjusting block 45 and the second force-bearing part 443. Meanwhile, according to actual needs, by screwing the position of the locking nut on the annular screw 48, the deformation of the supporting spring 46 can be adjusted, so that the clamping force for clamping the wires can be adjusted, and therefore when the wires with different diameters are clamped, firm clamping can be guaranteed, and falling off can be effectively avoided.
After clamping the wire, the worker selects the proper angle steel 6 of the high-voltage iron tower to be clamped into the accommodating space between the inverted L-shaped support arm and the control device body 26, and the fastening bolt 13 is adjusted to compress the angle steel 6, so that the grounding device can be hung on the high-voltage iron tower.
The above description is for the purpose of illustrating the preferred embodiments of the present invention, but the present invention is not limited thereto, and all changes and modifications that can be made within the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. Transmission line commonality wire earthing device, including being used for the angle steel fixing base of articulate on high tension tower angle steel, the clamping device who is used for fixed wire, be used for controlling clamping device's controlling means, its characterized in that: the clamping device comprises a hook, the hook comprises a connecting part and a hook part, the hook part is a hook-shaped object which is formed by integrally forming a left half hook and a right half hook and is provided with an opening, and the connecting part is connected with the left half hook; the right half hook is provided with a right clamping jaw, and the left half hook is provided with a left clamping jaw and a stroke adjusting block;
the right clamping jaw comprises a first clamping part, a first rotating shaft part and a first stress part, the first rotating shaft part is connected with the first clamping part and the first stress part, and the first rotating shaft part is used for enabling the right clamping jaw to be rotatably connected to the right half hook by taking a first pin shaft as a shaft; the first stress part is connected with a first tension spring, the first clamping part partially protrudes out of the inner side surface of the right half hook when the grounding device does not work, and the first clamping part is pressed by the conducting wire to elongate and deform the first tension spring when the grounding device works;
the left clamping jaw comprises a second clamping part, a second rotating shaft part and a second stress part, an included angle between the main axis of the second clamping part and the main axis of the second stress part along the clockwise direction is less than 180 degrees, the second rotating shaft part is connected with the second clamping part and the second stress part, and the second rotating shaft part is used for enabling the left clamping jaw to be rotatably connected to the left half hook by taking a second pin shaft as a shaft; the clamping surface of the second clamping part is an arc surface, and the clamping surface of the second clamping part is opposite to the clamping surface of the first clamping part;
the stroke adjusting block comprises a third rotating shaft part, a third stress part and a limiting part; the included angle between the main axis of the limiting part and the main axis of the third stress part along the clockwise direction is 80-160 degrees; the third rotating shaft part is connected with a third stress part and a limiting part and is used for enabling the stroke adjusting block to be rotatably connected to the right half hook by taking a third pin shaft as a shaft; the limiting part is positioned right below the second stress part and is mutually attached, a limiting through hole is formed in the limiting part, a supporting spring is arranged below the limiting through hole, the size of the cross section of the supporting spring is larger than that of the through hole, the second stress part is connected with an annular screw rod, and the annular screw rod is connected with a locking nut after penetrating through the limiting through hole and the supporting spring;
the control device comprises a control device body, the side face of the control device body is provided with the angle steel fixing seat, and the lower end of the control device body is connected with the upper end of the connecting part of the hook through a wire braid; the control device is connected with the left side of the third force-bearing part through a control wire, and the control device is used for realizing the rotation of the third force-bearing part by pulling the control wire.
2. The power transmission line general purpose wire grounding device according to claim 1, characterized in that: the control device also comprises a slide bar, a slide bar guide groove, a slide bar pressure spring and a slide bar limiting device; the vertical seting up of slide bar guide way is in controlling means body is surperficial, slide bar pressure spring and slide bar setting are in the slide bar guide way, and the upper end of slide bar guide way and the upper end of slide bar are connected respectively to the both ends of slide bar pressure spring, and the lower extreme of slide bar is connected the control line still is equipped with spacing draw-in groove on one side of slide bar lower part, slide bar stop device be used for with spacing draw-in groove match will the slide bar restriction is in the high position.
3. The power transmission line general purpose wire grounding device of claim 1, characterized in that: the improved hook is characterized in that a cavity is formed in the hook, the lower portion of the control line, the right clamping jaw, the left clamping jaw and the stroke adjusting block are arranged in the cavity of the hook, and a channel for the first clamping portion, the second clamping portion and the stroke adjusting block to rotate to enter and exit is further formed in the hook body.
4. The power transmission line general purpose wire grounding device according to claim 1, characterized in that: the lead braid comprises an outer insulating sheath layer, a conductive braid layer and an inner insulating sheath layer from outside to inside in sequence.
5. The power transmission line general purpose wire grounding device of claim 1, characterized in that: the angle steel fixing seat comprises an inverted L-shaped support arm and a fastening bolt, and the inverted L-shaped support arm comprises a cross rod and a vertical rod; the cross rod is fixedly connected with the control device body, so that an accommodating space of angle steel is formed between the inverted L-shaped support arm and the control device body, the vertical rod is provided with a fixing hole, and the fastening bolt is installed on the vertical rod through the fixing hole.
6. The power transmission line general purpose wire grounding device of claim 1, characterized in that: and a torsion spring is arranged between the second rotating shaft part and the hook part.
7. The power transmission line general purpose wire grounding device according to claim 2, characterized in that: the sliding rod limiting device comprises a sliding rod limiting column, a limiting pressure spring and an unlocking lifting handle, the sliding rod limiting column is connected in the control device body in a sliding mode, and the sliding direction of the sliding rod limiting column is perpendicular to the sliding rod; the unlocking pulling handle is arranged on the surface of the control device body in a covering mode, one end of the sliding rod limiting column is in contact with the sliding rod and can be matched with the limiting clamping groove, and a limiting pressure spring in a compressed state is arranged between the other end of the sliding rod limiting column and the unlocking pulling handle.
8. The power transmission line universal conductor grounding device of claim 2, characterized in that: the sliding rod is further connected with a sliding rod handle, and the sliding rod handle is arranged outside the control device body.
9. The power transmission line general purpose wire grounding device according to claim 3, characterized in that: the hook is characterized in that a plurality of guide pillars are further arranged inside the hook and used for guiding the stress direction of the control line to avoid other parts in the hook.
10. The power transmission line universal lead grounding device of claim 4, wherein: the inner insulation sheath layer is of a hollow structure, and the control line is arranged in the inner insulation sheath layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022519.4A CN109066126B (en) | 2018-09-03 | 2018-09-03 | Universal lead grounding device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022519.4A CN109066126B (en) | 2018-09-03 | 2018-09-03 | Universal lead grounding device for power transmission line |
Publications (2)
| Publication Number | Publication Date |
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| CN109066126A CN109066126A (en) | 2018-12-21 |
| CN109066126B true CN109066126B (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811022519.4A Active CN109066126B (en) | 2018-09-03 | 2018-09-03 | Universal lead grounding device for power transmission line |
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| CN (1) | CN109066126B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186618A (en) * | 2020-08-24 | 2021-01-05 | 国家电网有限公司 | Ground wire hooking device for power transmission line maintenance |
| CN114102459A (en) * | 2021-11-01 | 2022-03-01 | 国网浙江省电力有限公司金华供电公司 | Electric clamping rod convenient for clamping wire |
| CN114843972A (en) * | 2022-06-09 | 2022-08-02 | 广东电网有限责任公司 | Device for preventing lead from falling off |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100723944B1 (en) * | 2005-12-31 | 2007-05-31 | 위니아만도 주식회사 | Fixing structure of earth line for electronic appliance |
| CN102248482B (en) * | 2011-07-13 | 2013-05-08 | 广州海鸥卫浴用品股份有限公司 | Polishing and clamping arm adjustment device |
| CN102655279A (en) * | 2012-02-28 | 2012-09-05 | 广西电网公司电力科学研究院 | High-voltage conductor end ground clamp |
| CN104767050B (en) * | 2015-04-08 | 2017-05-17 | 国网浙江武义县供电公司 | Hook type personal security line |
| CN206148642U (en) * | 2016-11-03 | 2017-05-03 | 国家电网公司 | Portable earthing device |
| CN208970779U (en) * | 2018-09-03 | 2019-06-11 | 中国南方电网有限责任公司超高压输电公司南宁局 | Transmission line of electricity versatility conductor earthing device |
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