CN109216964B - Controllable anti-drop high-voltage power line grounding wire device - Google Patents
Controllable anti-drop high-voltage power line grounding wire device Download PDFInfo
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- CN109216964B CN109216964B CN201811263453.8A CN201811263453A CN109216964B CN 109216964 B CN109216964 B CN 109216964B CN 201811263453 A CN201811263453 A CN 201811263453A CN 109216964 B CN109216964 B CN 109216964B
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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
- H01R11/03—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 characterised by the relationship between the connecting locations
- H01R11/05—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 characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
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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
- H01R11/22—End pieces terminating in a spring clip
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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
- H01R11/26—End pieces terminating in a screw clamp, screw or nut
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
- H01R4/366—Conductive members located under tip of screw with intermediate part between tip and conductive member intermediate part attached to the tip of the screw
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
- H01R4/4872—Coil spring axially compressed to retain wire end
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
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Abstract
The utility model provides a controllable anti-drop high-voltage power line grounding wire device, and relates to the technical field of high-voltage overhaul equipment. The grounding wire device comprises an angle steel fixing seat, a clamping device, a grounding wire and an insulating rope. The clamping device comprises a hook, and a left clamping sleeve and a right clamping sleeve are arranged on the hook; the left clamping sleeve piece and the right clamping sleeve piece are identical in structure, the left clamping sleeve piece and the right clamping sleeve piece are opposite left and right and are symmetrically arranged on the hooks, the inner clamping jaws on the left clamping sleeve piece and the right clamping sleeve piece can be opened and closed relatively synchronously, a space for accommodating a wire is formed between the two inner clamping jaws and the lower clamping seat or the hooks when the two inner clamping jaws are closed, the outer clamping jaws limit the rotation freedom degree of one direction of the outer clamping jaws through the outer clamping jaw limiting blocks, and only one-way rotation is achieved, so that the anti-falling function of preventing the external connection wire from falling is achieved. When the device clamps the wires, the clamping is firm and reliable, the wire anti-falling function is realized, the device can adapt to clamping of wires with different wire diameters, the wires are accurately and conveniently detached, and the convenience of high-altitude operation is improved.
Description
[ field of technology ]
The utility model relates to the technical field of ultrahigh voltage maintenance equipment, in particular to a controllable anti-drop high-voltage power line grounding wire device.
[ background Art ]
When the power transmission line power failure maintenance operation is carried out, the ground wire is assembled and disassembled, which is a technical measure for ensuring safety. At present, most short-circuit grounding wire clamps used for AC/DC lines with voltage levels above 10kV in China are impact type and tongue type compression type wire clamps, and potential safety hazards that the wire clamps are possibly loose in contact with wires and easy to drop off due to inherent structural and principle defects of the wire clamps are present. In addition, according to the notification of the southern electric network company about the implementation of the ground wire, the personal security wire utility and the management supplement regulation, the ground wire or the personal security wire must be fastened by bolts or other wire clamps with locking function types, and the impact type duckbill wire clamp and the tongue type compression wire clamp are completely stopped before the 31 th 12 th 2017. At present, a general type wire grounding device for a high-voltage transmission line needs to be researched, and the requirement of safe production is met.
The Chinese patent publication No. CN207490130U discloses a universal wire grounding wire device of an ultra-high voltage transmission line, which comprises an angle steel fixing seat capable of being hung on an external angle steel and a hook for fixing a wire, wherein the angle steel fixing seat and the hook are connected through a hanging rope; the hook comprises a hook body, a first clamping half claw and a second clamping half claw are arranged on the hook body, the first clamping half claw and the second clamping half claw can be opened or closed relatively under the driving of the driving device, and a wire accommodating space is formed between the first clamping half claw and the second clamping half claw after the first clamping half claw and the second clamping half claw are closed. The device adjusts the size of wire accommodation space through the elasticity of spring to make the distance between two half claws can carry out the self-adaptation according to the thickness of earth connection and adjust, because do not seal between two half claws, under the exogenic action, when the spring atress, the wire still has the risk of droing. Therefore, further improvements are needed to make the ground wire assembly safer and more reliable.
[ utility model ]
The utility model aims at: aiming at the problems, the utility model provides the controllable anti-drop high-voltage power line grounding wire device, which is simple to use, convenient to operate and firm in clamping when clamping the grounding wire, and is provided with the limiting device, so that the grounding wire cannot drop off, and the use safety of the grounding device is improved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a controllable anticreep formula high voltage power line earth connection device, is including being used for the angle steel fixing base of articulates on high-voltage iron tower angle steel, the clamping device who is used for fixed wire, both ends are connected respectively the angle steel fixing base with clamping device's earth connection wire, and one end is connected clamping device's insulating rope:
the clamping device comprises a hook, and a left clamping sleeve and a right clamping sleeve are arranged on the hook; the left clamping sleeve and the right clamping sleeve have the same structure, are opposite left and right and are symmetrically arranged on the hook;
the left clamping sleeve and the right clamping sleeve comprise: the outer clamping jaw, the shifting fork, the inner clamping jaw and the inner clamping jaw tension spring are sequentially arranged on the hook from top to bottom and comprise an unlocking gear; the outer clamping jaw is fixed on the upper part of the hook through a rotating shaft, the front end of the outer clamping jaw is an outer stress part, the rear end part of the outer clamping jaw is a gear-shaped rear end, and a bulge part is arranged on the side surface of the outer clamping jaw; the middle part of the unlocking gear is fixed at the upper part of the hook through a rotating shaft, and the front end of the unlocking gear is provided with a gear meshed with the gear-shaped rear end of the outer clamping jaw; the shifting fork consists of a shifting fork body and a shifting fork head, the shifting fork head is horizontally or obliquely arranged at the upper end part of the shifting fork body, the shifting fork head is fixed on the hook through a rotating shaft, one side surface of the shifting fork head, which is far away from the shifting fork body, is contacted with the protruding part, and a guide groove extending towards the shifting fork head is formed in the side surface of the lower part of the shifting fork body; the front end of the inner clamping jaw is an inner clamping part, the rear end of the inner clamping jaw is fixed on the hook through a rotating shaft, a guide pin is arranged on the side surface of the middle part of the inner clamping jaw, and the guide pin is arranged in the guide groove in a sliding fit manner; the upper end of the inner clamping jaw tension spring is fixed on the inner clamping jaw, the lower end of the inner clamping jaw tension spring is fixed on the lower part of the hook, and the inner clamping jaw tension spring and the shifting fork are respectively arranged on two sides of the inner clamping jaw;
the clamping parts of the two inner clamping jaws are also arranged oppositely, and when the two inner clamping jaws of the left clamping sleeve and the right clamping sleeve are folded, a space for accommodating an external lead is formed among the left clamping sleeve, the right clamping sleeve and the hook.
Preferably, the ground wire device further comprises a lower clamping seat and two steel wire ropes; the lower clamping seat comprises a supporting plate, a supporting spring guide rod and a supporting spring seat, wherein the supporting plate is positioned below the two inner clamping jaws, and a space for accommodating an external lead is formed between the upper end surface of the supporting plate and the two inner clamping jaws; the spring supporting seat is fixed at the lower part of the hook and positioned below the supporting part, and a spring supporting limiting cavity is arranged in the spring supporting seat; the spring supporting guide rod is vertically fixed on the bottom surface of the lower clamping seat, a spring supporting pressing plate protruding towards the periphery is arranged in the middle of the spring supporting guide rod, the spring supporting guide rod penetrates through the upper end and the lower end of the spring supporting seat in a sliding mode, the spring supporting pressing plate and the lower portion of the spring supporting guide rod are arranged in a spring supporting limiting cavity, the spring supporting sleeve is arranged on the lower portion surface of the spring supporting guide rod and is installed and limited in the spring supporting limiting cavity, and the spring supporting is in a compressed state; one of the two ends of the steel wire rope is respectively connected with the rear end of the unlocking gear in the left clamping sleeve and the left end of the supporting plate, the other two ends of the steel wire rope are respectively connected with the rear end of the unlocking gear in the right clamping sleeve and the right end of the supporting plate, and the two steel wire ropes are in a just-tensioned state when the two inner clamping jaws are folded.
Preferably, when the supporting plate is pressed, the steel wire rope is pulled to drive the unlocking gear to rotate around the rotating shaft of the unlocking gear, so that the outer clamping jaw is driven to reversely rotate, and the maximum compression amount of the supporting spring is enough to enable the outer clamping jaw of the left clamping sleeve member to rotate clockwise from a nearly horizontal state to a vertical state, and enable the outer clamping jaw of the right clamping sleeve member to rotate anticlockwise from the nearly horizontal state to the vertical state.
Preferably, the grounding wire device further comprises a locking resetting sleeve member, the locking resetting sleeve member comprises a positioning hole formed in the side face of the upper portion of the spring supporting guide rod and an elastic positioning pin arranged on the side face of the upper portion of the spring supporting seat, one end of the elastic positioning pin penetrates through the spring supporting seat and is matched with the positioning hole, and the other end of the elastic positioning pin extends out of the spring supporting seat and is provided with a pull ring handle.
Preferably, the left clamping set and the right clamping set each further comprise: an outer clamping jaw limiting block and an outer clamping jaw positioning tension spring; the outer clamping jaw limiting block is fixed on the hook, and the upper end of the outer clamping jaw limiting block is a horizontal limiting surface; the rear end of the outer clamping jaw is also provided with an auxiliary positioning plate, the plate surface of the auxiliary positioning plate is parallel to the gear-shaped rear end part of the outer clamping jaw, the side surface of the auxiliary positioning plate is provided with an auxiliary limiting surface matched with the limiting surface for positioning, and the auxiliary positioning plate can only rotate clockwise after being blocked by the limiting surface when rotating, so that the outer clamping jaw of the left clamping sleeve can only rotate anticlockwise; one end of the outer clamping jaw positioning tension spring is connected to the auxiliary positioning plate, the other end of the outer clamping jaw positioning tension spring is connected to the outer clamping jaw limiting block, and the outer clamping jaw positioning tension spring is in a stretching state.
Preferably, the angle steel fixing seat comprises a door-shaped support and a fastening bolt, one pillar of the door-shaped support is connected with a wiring terminal, the wiring terminal is used for being connected with the grounding wire, a threaded hole is formed in the other pillar of the door-shaped support, and the fastening bolt is connected with the threaded hole in a matched mode.
Preferably, a movable pressing block is arranged at one end of the fastening bolt extending into the door-shaped support, and a rotary handle is arranged at one end of the fastening bolt outside the door-shaped support; a sliding groove is formed in the cross beam of the door-shaped support along the length direction, and the upper end of the movable pressing block is movably connected in the sliding groove.
Preferably, the inside cavity structure that is of couple, outer clamping jaw, shift fork, interior clamping jaw extension spring, unlocking gear, outer clamping jaw stopper, outer clamping jaw location extension spring, support spring seat all set up in the cavity of couple, still offered the passageway that supplies each part to rotate business turn over on the couple.
Preferably, the upper end surface of the supporting plate is an arc surface with an upward opening; the lower end faces of the inner clamping jaws of the left clamping sleeve and the right clamping sleeve are arc faces opposite to the upper end face of the supporting plate.
Preferably, the support plate is close to the lower end of the arc surface of the inner clamping jaw in an unpressurized natural state.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the grounding wire device, the hook is pulled by an insulating rope of an operator, so that an external wire presses the external clamping jaw, the external clamping jaw drives the shifting fork and the internal clamping jaw to be opened, and after the external wire enters between the two internal clamping jaws, the external clamping jaw and the internal clamping jaw return by utilizing the tension of a tension spring of the external clamping jaw and the elasticity of a steel wire rope, so that the wire is clamped; the hook is pulled by an operator, so that the external wire is pressed to the lower clamping seat, the steel wire rope is driven to pull the unlocking gear, the outer clamping jaw and the inner clamping jaw to rotate, and the outer clamping jaw and the inner clamping jaw are positioned in an opened mode through the positioning pin arranged on the lower clamping seat, so that the external wire can be separated, and the device has the advantages of firm clamping and difficult falling off and is very convenient to use.
2. According to the grounding wire device, the outer clamping jaw limiting block and the auxiliary positioning plate are arranged, the rotation freedom degree of the outer clamping jaw in one direction is limited through the matching of the limiting surface and the auxiliary limiting surface and the control of the tension spring, so that the outer clamping jaw of the left clamping sleeve can only rotate clockwise, and the outer clamping jaw of the right clamping sleeve can only rotate anticlockwise, so that when a wire is pulled out towards the opening direction of a hook, the wire is blocked by the left outer clamping jaw and the right outer clamping jaw, and the wire can be pulled out only by manual unlocking, and the wire falling-preventing purpose is achieved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a controllable anti-drop high-voltage power line grounding wire device according to an embodiment of the present utility model.
Fig. 2 is a functional schematic diagram of a clamping device in a clamping state according to an embodiment of the present utility model.
Fig. 3 is a functional schematic diagram of a clamping device in a clamping-released state according to an embodiment of the present utility model.
Fig. 4 is a schematic view showing a structure of an outer jaw in an opened state in a clamping device according to an embodiment of the present utility model.
Fig. 5 is a schematic view of a structure of an outer jaw in a limited state in a clamping device according to an embodiment of the present utility model.
Fig. 6 is a schematic structural diagram of the lower holder in a natural state according to an embodiment of the present utility model.
Fig. 7 is a schematic view of a state of the lower clamping seat when being pressed according to an embodiment of the present utility model.
Fig. 8 is a perspective view of a grounding device in a clamped state according to an embodiment of the present utility model.
The device comprises a 1-angle steel fixing seat, a 11-portal support, a 12-fastening bolt, a 13-movable pressing block, a 14-sliding chute and a 15-rotary handle, wherein the angle steel fixing seat is provided with a plurality of holes; 2-angle steel, 3-grounding wires, 4-hooks, 41-unlocking gears, 42-outer clamping jaw limiting blocks, 421-limiting surfaces, 43-outer clamping jaw positioning tension springs, 44-shifting forks, 441-guide grooves, 442-shifting fork heads, 443-shifting fork bodies, 45-inner clamping jaws, 451-guide pins, 452-clamping portions, 46-inner clamping jaw tension springs, 47-lower clamping seats, 471-supporting plates, 472-spring supporting guide rods, 472 a-spring supporting pressing plates, 473-spring supporting seats, 473 a-spring supporting limiting cavities, 474-spring supporting plates, 475-elastic positioning pins, 476-pull ring handles, 48-outer clamping jaws, 481-protruding portions, 482-auxiliary positioning plates, 482 a-auxiliary limiting surfaces, 49-steel wire ropes, 5-insulating ropes, 6-rotating shafts and 7-external wires.
[ detailed description ] of the utility model
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The drawings are for illustrative purposes only, are schematic representations and are not intended to be limiting of the present patent, and in order to better illustrate the embodiments of the present utility model, certain elements of the drawings may be omitted, enlarged or reduced, and not represent the actual product size, it will be understood by those skilled in the art that certain well-known structures, elements and descriptions thereof may be omitted, and that all other embodiments obtained by those skilled in the art without making inventive efforts are within the scope of protection of the present utility model based on the embodiments of the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
As shown in fig. 1, 2, 3 and 8, the controllable anti-drop high-voltage power line grounding wire device comprises an angle steel fixing seat 1, a clamping device and an insulating rope 5, wherein the angle steel fixing seat 1 is used for being hung on an angle steel 2 of a high-voltage iron tower, the clamping device is used for fixing a wire, two ends of the clamping device are respectively connected with the angle steel fixing seat 1 and a grounding wire 3 of the clamping device, and one end of the insulating rope is connected with the clamping device:
the clamping device comprises a hook 4, and a left clamping sleeve and a right clamping sleeve are arranged on the hook 4; the left clamping sleeve and the right clamping sleeve have the same structure, are opposite left and right and are symmetrically arranged on the hook 4;
the left clamping sleeve and the right clamping sleeve comprise: an outer jaw 48, a fork 44, an inner jaw 45, an inner jaw tension spring 46, and an unlocking gear 41, which are sequentially arranged on the hook 4 from top to bottom; the outer clamping jaw 48 is fixed on the upper part of the hook 4 through a rotating shaft 6, the front end of the outer clamping jaw 48 is an outer stress part, the rear end part of the outer clamping jaw 48 is a gear-shaped rear end, and a bulge 481 is arranged on the side surface of the outer clamping jaw 48; the middle part of the unlocking gear 41 is fixed at the upper part of the hook 4 through a rotating shaft 6, and the front end of the unlocking gear 41 is provided with a gear meshed with the gear-shaped rear end of the outer clamping jaw 48; the shift fork 44 is composed of a shift fork body 443 and a shift fork head, the shift fork head is horizontally or obliquely arranged at the upper end part of the shift fork body 443, the shift fork head is fixed on the hook 4 through the rotating shaft 6, one side surface of the shift fork head, which is far away from the shift fork body, is contacted with the convex part 481, and a guide groove 441 extending towards the shift fork head is arranged at the side surface of the lower part of the shift fork body; the front end of the inner clamping jaw 45 is an inner clamping part 452, the rear end of the inner clamping jaw 45 is fixed on the hook 4 through the rotating shaft 6, a guide pin 451 is arranged on the side surface of the middle part of the inner clamping jaw 45, and the guide pin 451 is arranged in the guide groove 441 in a sliding fit manner; the upper end of the inner clamping jaw tension spring 46 is fixed on the inner clamping jaw 45, the lower end of the inner clamping jaw tension spring 46 is fixed on the lower part of the hook 4, and the inner clamping jaw tension spring 46 and the shifting fork are respectively arranged on the upper side and the lower side of the inner clamping jaw 45;
the outer stress portions of the two outer clamping jaws 48 on the left clamping sleeve and the right clamping sleeve are oppositely arranged, the clamping portions 452 of the two inner clamping jaws 45 are also oppositely arranged, and when the two inner clamping jaws 45 of the left clamping sleeve and the right clamping sleeve are folded, a space for accommodating the external connection wire 7 is formed among the left clamping sleeve, the right clamping sleeve and the hook 4.
Due to the structure, when the electric iron is used, an operator fixes the angle steel fixing seat 1 on the angle steel 2 of the high-voltage iron tower, the free end of the insulating rope 5 is tied on the angle steel of the high-voltage iron tower, the other end of the insulating rope 5 pulls the hook 4 to approach the external wire 7, a wire inlet formed between the left outer clamping jaw 48 and the right outer clamping jaw 48 is aligned with the wire, then the insulating rope 5 is pulled upwards, the external wire 7 presses down the outer stress part of the outer clamping jaw 48, the shifting fork head 442 is pressed downwards due to the fact that the protruding part 481 on the outer clamping jaw 48 is contacted with one side of the shifting fork 44, the shifting fork head 442 and the shifting fork body 443 start to rotate, the inner clamping jaw 45 is synchronously driven to rotate upwards to open, and the wire falls into the left inner clamping jaw 45, the right inner clamping jaw 4 and the hook 4, so that the clamping operation of the wire is completed, and the purpose of grounding is achieved.
In order to make the novel device of the grounding wire of the utility model more conveniently taken out from the external lead 7, the novel device preferably further comprises a lower clamping seat 47 and two steel wire ropes 49; the lower clamping seat 47 comprises a supporting plate 471, a supporting spring 474, a supporting spring guide rod 472 and a supporting spring seat 473, wherein the supporting plate 471 is positioned below the two inner clamping claws 45, and a space for accommodating an external connection wire 7 is formed between the upper end surface of the supporting plate 471 and the two inner clamping claws 45; the spring supporting seat 473 is fixed at the lower part of the hook 4 and positioned below the supporting part, and a spring supporting limiting cavity 473a is arranged in the spring supporting seat 473; the supporting spring guide rod 472 is vertically fixed on the bottom surface of the lower clamping seat 47, a supporting spring pressing plate 472a protruding towards the periphery is arranged in the middle of the supporting spring guide rod 472, the supporting spring guide rod 472 slidably penetrates through the upper end and the lower end of the supporting spring seat 473, the supporting spring pressing plate 472a and the lower part of the supporting spring guide rod 472 are arranged in a supporting spring limiting cavity 473a, the supporting spring 474 is sleeved on the lower surface of the supporting spring guide rod 472 and is installed and limited in the supporting spring limiting cavity 473a, and the supporting spring 474 is in a compressed state; one of the two ends of the wire rope 49 is connected with the rear end of the unlocking gear 41 in the left clamping set and the left end of the supporting plate 471, the other one of the two ends of the wire rope 49 is connected with the rear end of the unlocking gear 41 in the right clamping set and the right end of the supporting plate 471, and the two wire ropes 49 are in a just-tensioned state when the two inner clamping claws 45 are folded.
Due to the above structure, when the hook 4 needs to be disassembled, only the insulating rope 5 needs to be pulled to be in a vertical state, then the insulating rope 5 is pulled upwards in an instant, at this time, the hook 4 is subjected to upward traction force of the insulating rope 5, the lower clamping seat 47 can move downwards due to the supporting spring 474, the supporting spring guide rod 472 and the supporting spring pressing plate 472a, the supporting plate 471 can move downwards, the steel wire rope 49 is pulled downwards while the steel wire rope 49 drives the unlocking gear 41 above to rotate by a certain angle, the unlocking gear 41 simultaneously drives the outer clamping jaws 48 of the left clamping sleeve and the right clamping sleeve to synchronously rotate, the outer clamping jaws 48 of the left clamping sleeve and the right clamping sleeve gradually rotate downwards to be opened, and the inner clamping jaws 45 of the left clamping sleeve and the right clamping sleeve are driven to synchronously rotate upwards to be opened by the shifting fork 44. When the supporting plate 471 is pressed, the wire rope 49 is pulled to drive the unlocking gear 41 to rotate around the rotating shaft 6 thereof, so as to drive the outer clamping jaw 48 to reversely rotate, and the maximum compression amount of the supporting spring 474 is preferably enough to enable the outer clamping jaw 48 of the left clamping sleeve to rotate clockwise from a nearly horizontal state to a vertical state and enable the outer clamping jaw 48 of the right clamping sleeve to rotate anticlockwise from a nearly horizontal state to a vertical state. Thereby ensuring that both the inner and outer jaws 45, 48 are open to a sufficient extent to allow the wire to be ejected.
The ground wire device further preferably further comprises a locking resetting sleeve, the locking resetting sleeve comprises a positioning hole formed in the upper side face of the spring supporting guide rod 472 and an elastic positioning pin 475 arranged on the upper side face of the spring supporting seat 473, one end of the elastic positioning pin 475 penetrates through the spring supporting seat 473 and is matched with the positioning hole, and the other end of the elastic positioning pin 475 extends out of the spring supporting seat 473 and is provided with a pull ring handle 476. Due to this arrangement, when the supporting plate 471 moves down to move the supporting spring guide rod 472 and the positioning hole, and the positioning hole moves down to the position corresponding to the elastic positioning pin 475, the supporting plate 471 is matched and blocked, and the steel wire rope 49, the unlocking gear 41, the outer clamping jaw 48, the shifting fork 44 and the inner clamping jaw 45 are all positioned in an opened state, at this time, the operator releases the insulating rope 5, so that the purpose that the hook 4 is detached from the external connection wire 7 is achieved. When the hook 4 is detached, only the pull ring handle 476 on the elastic positioning pin 475 is pulled to release the locking state, the supporting plate 471 moves upwards in a return manner under the resilience force of the supporting spring 474, the wire rope 49 releases the tension on the unlocking gear 41, and the outer clamping jaw 48 can return to the initial state and return to the working state of the wire to be clamped. To achieve this, it is also preferable that the maximum stroke of the positioning hole is sufficient to rotate the outer jaw 48 of the left clamping set clockwise from a nearly horizontal state to a vertical state and to rotate the outer jaw 48 of the right clamping set counterclockwise from a nearly horizontal state to a vertical state when the supporting plate 471 is moved downward.
It is also preferred that the left clamping set and the right clamping set each further include: an outer jaw stopper 42 and an outer jaw positioning tension spring 43; the outer clamping jaw limiting block 42 is fixed on the hook 4, and the upper end of the outer clamping jaw limiting block 42 is a horizontal limiting surface 421; the rear end of the outer clamping jaw 48 is further provided with an auxiliary positioning plate 482, the plate surface of the auxiliary positioning plate 482 is parallel to the gear-shaped rear end part of the outer clamping jaw 48, the side surface of the auxiliary positioning plate 482 is provided with an auxiliary limiting surface 482a which is matched with the limiting surface 421 for positioning, and when the outer clamping jaw 48 rotates, the auxiliary positioning plate 482 is blocked by the limiting surface 421, so that the outer clamping jaw 48 of the left clamping sleeve cannot continuously rotate anticlockwise and only can return clockwise, and the outer clamping jaw 48 of the right clamping sleeve cannot rotate clockwise and only can return anticlockwise; through this setting for after external wire 7 is held, receive this spacing influence, external wire 7 can't follow left and right outer clamping jaw 48 and come out again in the clamping jaw how to rock, must the manual unlocking just can make external wire 7 deviate from, so realize wire anti-drop's purpose. The position of the limiting surface 421 on the hook 4 is preferably the same height as the rotating shaft 6 of the outer clamping jaw 48. One end of the outer clamping jaw positioning tension spring 43 is connected to the auxiliary positioning plate 482, the other end of the outer clamping jaw positioning tension spring 43 is connected to the outer clamping jaw limiting block 42 and is located below the limiting surface 421, when the outer clamping jaw positioning tension spring 43 is in a stretching state and the auxiliary limiting surface 482a is matched with the limiting surface 421 for positioning, the pulling force is minimum, when the outer clamping jaw 48 rotates, the outer clamping jaw 48 and the inner clamping jaw 45 are opened, the pulling force of the outer clamping jaw positioning tension spring 43 is increased, therefore, when an operator pulls the pull ring handle 476 on the elastic positioning pin 475 to release the locking state, and after the pulling force of the steel wire rope 49 to the unlocking gear 41 is released, the outer clamping jaw positioning tension spring 43 can enable the outer clamping jaw 48 to reset as soon as possible through the pulling force.
The wire rope 49 is preferably a flexible wire rope, and therefore, the left and right fork 44 cannot drive the left and right outer jaws 48 to rotate regardless of the shaking of the wire in the inner jaw 45. When a wire enters the left outer clamping jaw 48 and the right outer clamping jaw 48, the unlocking gear 41 is driven to rotate by the rotation of gears on the left outer clamping jaw 48 and the right outer clamping jaw 48, the lower clamping seat 47 always keeps the original state, and only after the lower clamping seat 47 moves downwards for a certain stroke, the wire rope 49 can be pulled to drive the unlocking gear 41 to synchronously rotate with the left outer clamping jaw 48 and the right outer clamping jaw 48, so that the purpose of opening the clamping jaws to dismantle the wire is achieved.
In this embodiment, it is further preferable that the angle steel fixing seat 1 includes a portal support 11 and a fastening bolt 12, one pillar of the portal support 11 is connected with a connection terminal, the connection terminal is used for connecting the grounding wire 3, a threaded hole is formed in another pillar of the portal support 11, and the fastening bolt 12 is connected with the threaded hole in a matching manner. When the steel tower cross arm angle steel 2 is used, the angle steel fixing seat 1 is hung on the vertical side of the high-voltage steel tower cross arm angle steel, the fastening bolts 12 are rotated, and the steel tower cross arm angle steel 2 with different specifications and sizes can be clamped by utilizing thread locking force.
In order to make the clamping more stable, the end of the fastening bolt 12 extending into the door-shaped support 11 is provided with a movable pressing block 13, and the end of the fastening bolt 12 outside the door-shaped support 11 is provided with a rotary handle 15; a sliding groove 14 is formed in the cross beam of the door-shaped support 11 along the length direction, and the upper end of the movable pressing block 13 is movably connected in the sliding groove 14. The translational locking of the movable pressing block 13 is driven to be positioned on the inner side surface of the angle steel 2, so that the contact surface between the movable pressing block and the angle steel 2 is enlarged, and the clamping is more firm.
In this embodiment, the hook 4 is a frame for installing each component, and has a cavity structure inside, the outer clamping jaw 48, the shifting fork 44, the inner clamping jaw 45, the inner clamping jaw tension spring 46, the unlocking gear 41 and the spring supporting seat 473 are all disposed in the cavity of the hook 4, and the hook 4 is further provided with a passage for the rotation of each component to enter and exit.
In this embodiment, the upper end surface of the supporting plate 471 is preferably an arc surface with an upward opening; the lower end surfaces of the inner clamping jaws 45 of the left clamping sleeve and the right clamping sleeve are arc surfaces which are arranged opposite to the upper end surface of the supporting plate 471. Preferably, the supporting plate 471 is close to the lower end of the circular arc surface of the inner jaw 45 in an unpressed natural state. So that the external lead 7 is more stable when clamped.
When the high-voltage iron tower is used, the angle steel fixing seat 1 is hung on the vertical side of a cross arm angle steel of a high-voltage iron tower, the rotary fastening bolt 12 is used for fixing, the free end of the insulating rope 5 is fastened on the cross arm angle steel, an operator pulls the insulating rope 5 to guide the hook 4 to approach the external conductor 7, a wire inlet formed between the left clamping jaw 48 and the right clamping jaw 48 is aligned with the external conductor 7, the external conductor 7 can be added into the left clamping jaw 45 and the right clamping jaw 45 after pulling upwards, and the work of hanging the hook 4 into the external conductor 7 is completed, so that the purpose of grounding is achieved. When the grounding operation is finished, the hook 4 needs to be disassembled, the insulating rope 5 is only required to be pulled to be in a vertical state, then the insulating rope 5 is pulled upwards in an instant, at the moment, the clamping jaw at the wire end is pulled upwards by the insulating rope 5, the lower clamping seat 47 moves downwards, flexible steel wires are arranged on two sides of the supporting plate 471 of the lower clamping seat 47, the unlocking gear 41 above is driven to rotate by a certain angle, the unlocking gear 41 simultaneously drives the left outer clamping jaw 48 and the right outer clamping jaw 48 to synchronously rotate, the left outer clamping jaw 48 and the right outer clamping jaw 48 are gradually opened, the left inner clamping jaw 45 and the right inner clamping jaw 45 are driven to synchronously open, after the supporting plate 471 of the lower clamping seat 47 moves downwards to the elastic locating pin 475 to lock the locating hole, the spring supporting guide rod 472 stops moving downwards immediately, at the moment, the left inner clamping jaw 48 and the right inner clamping jaw 48 are synchronously opened and fixed by an operator, and after the insulating rope 5 is lowered by a bit, the wire is separated from the hook 4, so that the purpose that the clamping device is disassembled from the external wire 7 is realized. When the clamping device is disassembled, the lower clamping seat 47, the outer clamping jaw 48, the shifting fork 44, the inner clamping jaw 45 and the steel wire rope 49 can be reset to the state of the initial wire to be clamped only by pulling the pull ring handle 476 arranged outside the elastic positioning pin 475.
The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a controllable anticreep formula high voltage power line earth connection device, is including being used for the angle steel fixing base of articulates on the high-voltage iron tower angle steel, the clamping device who is used for fixed wire, both ends are connected respectively the angle steel fixing base with clamping device's earth connection wire, and one end is connected clamping device's insulating rope, its characterized in that:
the clamping device comprises a hook, and a left clamping sleeve and a right clamping sleeve are arranged on the hook; the left clamping sleeve and the right clamping sleeve have the same structure, are opposite left and right and are symmetrically arranged on the hook;
the left clamping sleeve and the right clamping sleeve comprise: the outer clamping jaw, the shifting fork, the inner clamping jaw and the inner clamping jaw tension spring are sequentially arranged on the hook from top to bottom and comprise an unlocking gear; the outer clamping jaw is fixed on the upper part of the hook through a rotating shaft, the front end of the outer clamping jaw is an outer stress part, the rear end part of the outer clamping jaw is a gear-shaped rear end, and a bulge part is arranged on the side surface of the outer clamping jaw; the middle part of the unlocking gear is fixed at the upper part of the hook through a rotating shaft, and the front end of the unlocking gear is provided with a gear meshed with the gear-shaped rear end of the outer clamping jaw; the shifting fork consists of a shifting fork body and a shifting fork head, the shifting fork head is horizontally or obliquely arranged at the upper end part of the shifting fork body, the shifting fork head is fixed on the hook through a rotating shaft, one side surface of the shifting fork head, which is far away from the shifting fork body, is contacted with the protruding part, and a guide groove extending towards the shifting fork head is formed in the side surface of the lower part of the shifting fork body; the front end of the inner clamping jaw is an inner clamping part, the rear end of the inner clamping jaw is fixed on the hook through a rotating shaft, a guide pin is arranged on the side surface of the middle part of the inner clamping jaw, and the guide pin is arranged in the guide groove in a sliding fit manner; the upper end of the inner clamping jaw tension spring is fixed on the inner clamping jaw, the lower end of the inner clamping jaw tension spring is fixed on the lower part of the hook, and the inner clamping jaw tension spring and the shifting fork are respectively arranged on two sides of the inner clamping jaw;
the outer stress parts of the two outer clamping jaws on the left clamping sleeve and the right clamping sleeve are arranged oppositely, the clamping parts of the two inner clamping jaws are also arranged oppositely, and when the two inner clamping jaws of the left clamping sleeve and the right clamping sleeve are folded, a space for accommodating an external lead is formed among the left clamping sleeve, the right clamping sleeve and the hook;
the grounding wire device also comprises a lower clamping seat and two steel wire ropes; the lower clamping seat comprises a supporting plate, a supporting spring guide rod and a supporting spring seat, wherein the supporting plate is positioned below the two inner clamping jaws, and a space for accommodating an external lead is formed between the upper end surface of the supporting plate and the two inner clamping jaws; the spring supporting seat is fixed at the lower part of the hook and positioned below the supporting part, and a spring supporting limiting cavity is arranged in the spring supporting seat; the spring supporting guide rod is vertically fixed on the bottom surface of the lower clamping seat, a spring supporting pressing plate protruding towards the periphery is arranged in the middle of the spring supporting guide rod, the spring supporting guide rod penetrates through the upper end and the lower end of the spring supporting seat in a sliding mode, the spring supporting pressing plate and the lower portion of the spring supporting guide rod are arranged in a spring supporting limiting cavity, the spring supporting sleeve is arranged on the lower portion surface of the spring supporting guide rod and is installed and limited in the spring supporting limiting cavity, and the spring supporting is in a compressed state; two ends of one steel wire rope are respectively connected with the rear end of the unlocking gear in the left clamping sleeve and the left end of the supporting plate, two ends of the other steel wire rope are respectively connected with the rear end of the unlocking gear in the right clamping sleeve and the right end of the supporting plate, and the two steel wire ropes are in a just-tensioned state when the two inner clamping jaws are closed;
when the supporting plate is pressed, the steel wire rope is pulled to drive the unlocking gear to rotate around the rotating shaft of the unlocking gear, so that the outer clamping jaw is driven to reversely rotate, the maximum compression amount of the supporting spring is enough to enable the outer clamping jaw of the left clamping sleeve member to rotate clockwise from a nearly horizontal state to a vertical state, and enable the outer clamping jaw of the right clamping sleeve member to rotate anticlockwise from the nearly horizontal state to the vertical state;
the left clamping sleeve and the right clamping sleeve also comprise: an outer clamping jaw limiting block and an outer clamping jaw positioning tension spring; the outer clamping jaw limiting block is fixed on the hook, and the upper end of the outer clamping jaw limiting block is a horizontal limiting surface; the rear end of the outer clamping jaw is also provided with an auxiliary limiting plate, the plate surface of the auxiliary limiting plate is parallel to the gear-shaped rear end part of the outer clamping jaw, the side surface of the auxiliary limiting plate is provided with an auxiliary limiting surface which is matched with the limiting surface for positioning, and the auxiliary limiting surface is blocked by the limiting surface when rotating, so that the outer clamping jaw of the left clamping sleeve member can only rotate clockwise, and the outer clamping jaw of the right clamping sleeve member can only rotate anticlockwise; one end of the outer clamping jaw positioning tension spring is connected to the auxiliary positioning plate, the other end of the outer clamping jaw positioning tension spring is connected to the outer clamping jaw limiting block, and the outer clamping jaw positioning tension spring is in a stretching state.
2. The controllable anti-drop high voltage power line grounding wire device of claim 1, wherein: the grounding wire device further comprises a locking resetting sleeve, the locking resetting sleeve comprises a positioning hole formed in the side face of the upper portion of the spring supporting guide rod and an elastic positioning pin arranged on the side face of the upper portion of the spring supporting seat, one end of the elastic positioning pin penetrates through the spring supporting seat and is matched with the positioning hole, and the other end of the elastic positioning pin extends out of the spring supporting seat and is provided with a pull ring handle.
3. The controllable anti-drop high voltage power line grounding wire device of claim 1, wherein: the angle steel fixing seat comprises a door-shaped support and a fastening bolt, one pillar of the door-shaped support is connected with a wiring terminal, the wiring terminal is used for being connected with the grounding wire, a threaded hole is formed in the other pillar of the door-shaped support, and the fastening bolt is connected with the threaded hole in a matched mode.
4. A controllable anti-drop high voltage power line ground device according to claim 3, characterized in that: one end of the fastening bolt, which extends into the door-shaped support, is provided with a movable pressing block, and one end of the fastening bolt, which is outside the door-shaped support, is provided with a rotary handle; a sliding groove is formed in the cross beam of the door-shaped support along the length direction, and the upper end of the movable pressing block is movably connected in the sliding groove.
5. The controllable anti-drop high voltage power line grounding wire apparatus of claim 4, wherein: the inside cavity structure that is of couple, outer clamping jaw location extension spring, outer clamping jaw stopper, shift fork, interior clamping jaw extension spring, unblock gear, support the spring seat and all set up in the cavity of couple, still offered the passageway that supplies each part to rotate business turn over on the couple.
6. The controllable anti-drop high voltage power line grounding wire device of claim 1, wherein: the upper end surface of the supporting plate is an arc surface with an upward opening; the lower end faces of the inner clamping jaws of the left clamping sleeve and the right clamping sleeve are arc faces opposite to the upper end face of the supporting plate.
7. The controllable anti-drop high voltage power line grounding wire apparatus of claim 6, wherein: the supporting plate is close to the lower end of the arc surface of the inner clamping jaw in an unpressurized natural state.
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| CN201811263453.8A CN109216964B (en) | 2018-10-28 | 2018-10-28 | Controllable anti-drop high-voltage power line grounding wire device |
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| CN201811263453.8A CN109216964B (en) | 2018-10-28 | 2018-10-28 | Controllable anti-drop high-voltage power line grounding wire device |
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| CN109216964B true CN109216964B (en) | 2023-10-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110854779A (en) * | 2019-11-27 | 2020-02-28 | 国网陕西省电力公司汉中供电公司 | Temporary power utilization and connection structure and method for low-voltage line |
| CN112164904B (en) * | 2020-08-31 | 2021-10-15 | 国网河北省电力有限公司邢台供电分公司 | Live operating rod of ground clamp |
| CN112038796B (en) * | 2020-09-22 | 2022-03-01 | 中国南方电网有限责任公司超高压输电公司南宁局 | General type push-pull little formula earth connection of twisting about |
| CN112350086B (en) * | 2020-11-30 | 2021-11-23 | 中国南方电网有限责任公司超高压输电公司南宁局 | Cross locking type anti-drop grounding wire clamp for power line |
| CN114069351B (en) * | 2021-11-27 | 2024-01-23 | 云南电网有限责任公司楚雄供电局 | Automatic ground wire mounting device and control method thereof |
| CN115036757B (en) * | 2022-07-01 | 2023-08-08 | 国网安徽省电力有限公司滁州市城郊供电公司 | Electric power grounding wire clamp and grounding device thereof |
| CN116667088B (en) * | 2023-08-02 | 2023-11-21 | 山东乐普韦尔自动化技术有限公司 | Abnormal-shape parallel groove wiring tool and method by insulating rod method |
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