CN217114840U - Quick grounding wire clamp for ultra-high voltage transmission line - Google Patents

Abstract

The utility model relates to an extra-high voltage transmission line quick ground clamp, including the electrically conductive coupler body, the notch top of coupler body is fixed with first strong magnet, the notch is provided with the elasticity clamping bar that is used for the centre gripping wire, the arch top surface of coupler body is provided with withdraws from the rope connector link, and the handle pole of coupler body just is close to the notch side and is fixed with the second strong magnet, is provided with the earth connection connecting portion with the opposite one side of second strong magnet on the handle pole of coupler body, and the handle pole lower part of coupler body still is provided with the taut rope connector link. The accuracy of the grounding wire clamp is improved by strong magnetic force suction, and the hanging work efficiency is improved.

Description

Quick grounding wire clamp for ultra-high voltage transmission line

Technical Field

The utility model relates to an extra-high voltage transmission line quick ground clamp.

Background

In the maintenance process of the ultra-high voltage transmission line, workers need to be arranged in advance to climb the iron tower to carry out line grounding operation. The common portable grounding wire adopts a throwing method. At present, most of portable grounding wire connectors effectively used at home and abroad are hook-type structures, clamping-type structures and the like, and all the portable grounding wire connectors utilize mechanical friction force to realize high-altitude hanging connection. Namely, the throwing can be completed by the high-altitude operators.

Because of the inherent limitation that the electric transmission line needs to be thrown remotely to hang the ground wire, the existing ground wire end has the defects of inconvenient operation, insecure hanging, low working efficiency and the like. The traditional portable grounding wire adopts a throwing method, and the space distance is enlarged along with the voltage level of the power transmission line, so that the operation difficulty is increased, time and labor are consumed, and the line maintenance process is influenced. And the traditional portable grounding wire realizes high-altitude hanging connection by utilizing mechanical friction, the contact is not firm, and the hidden danger of falling exists.

Disclosure of Invention

An object of the utility model is to provide a quick earth clamp of special high tension transmission line, this earth clamp rely on the actuation of strong magnetic force to improve the accuracy, promote the efficiency of articulating work.

The technical scheme of the utility model lies in: the utility model provides an extra-high voltage transmission line quick ground clamp, includes the electrically conductive coupler body, the notch top of coupler body is fixed with first strong magnet, the notch is provided with the elasticity clamping bar that is used for the centre gripping wire, the arch top surface of coupler body is provided with withdraws from the rope connector link, and the handle pole of coupler body just is close to the notch side and is fixed with the second strong magnet, is provided with the earth connection connecting portion with the opposite one side of second strong magnet on the handle pole of coupler body, and the handle pole lower part of coupler body still is provided with the taut rope connector link.

Furthermore, the elastic clamping rod comprises a first clamping rod and a second clamping rod, the upper ends of the first clamping rod and the second clamping rod are located on two sides of the first strong magnet, the lower ends of the first clamping rod and the second clamping rod are hinged with the corresponding sides of the inlets of the notches, and a pressing mechanism enabling the first clamping rod and the second clamping rod to have clamping force is arranged on the hook body.

Further, hold-down mechanism is including installing the torsional spring in coupler body notch both sides respectively, the one end and the coupler body looks butt of torsional spring, the other end and the first clamping bar or the second clamping bar looks butt that correspond of torsional spring, the recess that is used for first clamping bar and the activity of second clamping bar upper end is seted up at the top of notch.

Furthermore, the upper parts of the first clamping rod and the second clamping rod are provided with arc-shaped parts, and the two arc-shaped parts are matched to form a clamping opening.

Furthermore, the withdrawing rope connecting buckle is a connecting ring fixed on the arched top surface of the hook body.

Furthermore, a positioning step surface is arranged on the handle rod of the hook body and close to the notch side, and the second strong magnet is arranged on the positioning step surface and fixed on the handle rod of the hook body through a fixing plate.

Furthermore, a threaded hole for installing the grounding wire connecting terminal through a bolt is formed in the grounding wire connecting part.

Furthermore, the connecting buckle of the tensioning rope is a connecting hole arranged at the lower part of the hook body handle.

Compared with the prior art, the utility model has the advantages of it is following:

1. this earth clamp relies on the characteristics of magnetic attraction absorption, crimping, the steady operation of card dead substep, combines the strong magnetic characteristic of neodymium iron boron material, utilizes strong magnetic force to replace mechanical friction, possesses and articulates operation simplicity, high efficiency, connects more firmly, is difficult for droing.

2. This earth clamp is changed the magnetic attraction with mechanical action power transformation, changes from the effect principle of physical force, will only rely on the unreliable drawback that physical friction realized articulating to change into the reliable connection advantage of strong magnetic force, utilizes to collude the type structure and acts as go-between the design and has effectively promoted the rate of accuracy and the success rate of throwing, can get back the earth clamp after the operation is accomplished fast.

3. The total length of the ground wire with the insulating pull rope can reach more than 6 meters, the total weight is light, and high-altitude light weight hanging connection is realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

in the figure: 10-hook body 11-notch 12-inlet 13 of notch, ground wire connecting part 14-bolt 15-connecting hole 16-positioning step surface 20-first strong magnet 31-first clamping rod 32-second clamping rod 33-torsion spring 34-groove 35-arc part 36-clamping opening 40-exit rope connecting buckle 50-second strong magnet 51-fixing plate 60-ground wire connecting terminal.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to FIGS. 1 and 2

The utility model provides an extra-high voltage transmission line quick ground clamp, includes electrically conductive coupler body 10, 11 tops of notch of coupler body are fixed with first strong magnet 20, the notch is provided with the elasticity clamping bar that is used for the centre gripping wire, the arch top surface of coupler body is provided with withdraws from rope connector link 40 to through the installation withdrawal rope, the pulling withdraws from the rope and makes the coupler body take back from the wire. A second strong magnet 50 is fixed to the shank of the hook, near the notch side, so as to bring the hook closer to the wire by magnetic force. The handle of the hook is provided with a grounding wire connecting part 13 on the opposite side of the second strong magnet, so as to connect a grounding wire. The lower part of the handle rod of the hook body is also provided with a tension rope connecting buckle, so that the tension rope is installed, and after the hook body hooks the wire, the wire falls into the elastic clamping rod by pulling the tension rope.

In this embodiment, the elastic clamping bar comprises a first clamping bar 31 and a second clamping bar 32, the upper ends of the first clamping bar and the second clamping bar are located at two sides of the first strong magnet, the lower ends of the first clamping bar and the second clamping bar are hinged to the corresponding side of the inlet 12 of the notch through pins, and the hook body is provided with a pressing mechanism which enables the first clamping bar and the second clamping bar to have a clamping force, so that the first clamping bar and the second clamping bar can clamp a wire.

In this embodiment, in order to make the first clamping bar and the second clamping bar have the clamping force, the hold-down mechanism includes the torsional spring 33 that installs respectively in coupler body notch both sides, the one end and the coupler body looks butt of torsional spring, the other end of torsional spring and the first clamping bar or the second clamping bar looks butt that correspond, recess 34 that is used for first clamping bar and the activity of second clamping bar upper end is seted up at the top of notch to the upper end elastic activity of first clamping bar and second clamping bar.

In this embodiment, the upper portions of the first clamping bar and the second clamping bar are respectively provided with an arc-shaped portion 35, and the two arc-shaped portions cooperate to form a clamping opening 36, so as to better clamp the wire.

In this embodiment, in order to better connect the exit rope, the exit rope connecting buckle is a connecting ring fixed on the arched top surface of the hook body.

In this embodiment, the shank of the hook body is provided with a positioning step surface 16 near the notch side, and the second strong magnet is provided on the positioning step surface and fixed to the shank of the hook body through a fixing plate 51. The fixing plate wraps the grounding wire connecting part in the fixing plate.

In the present embodiment, in order to connect the ground wire more favorably, the ground wire connection portion is provided with a screw hole for attaching the ground wire connection terminal 60 by the bolt 14.

In this embodiment, the strap connector is a connecting hole 15 formed in the lower portion of the hook shank for connecting the strap.

In this embodiment, the hook body, the first clamping bar and the second clamping bar are made of conductive materials respectively; the tensioning rope and the withdrawing rope are respectively composed of insulating ropes. The first strong magnet and the second strong magnet are made of neodymium iron boron materials.

On traditional formula earth connection body basis of pressing from both sides, reasonable embedding neodymium iron boron series ferromagnetic material utilizes the strong magnetic force to change the uncertainty drawback that originally only relies on high altitude construction personnel to throw the proficiency into the accuracy advantage that relies on strong magnetic force actuation, promotes the efficiency of articulating work. In addition, the design of the tensioning rope connecting buckle and the withdrawing rope connecting buckle can increase mechanical friction force, so that the grounding wire is fixed by utilizing the tensioning rope connecting buckle and the elastic clamping rod after the throwing is successful, and the connection reliability is ensured. The ground clamp can be quickly taken back by the withdrawing rope connecting buckle after the operation is finished.

When the terms "first", "second", etc. are used to define the components of the present invention, those skilled in the art will understand that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims (8)

1. The utility model provides an extra-high voltage transmission line quick ground clamp, includes the electrically conductive coupler body, its characterized in that, the notch top of coupler body is fixed with first strong magnet, the notch is provided with the elasticity clamping bar that is used for the centre gripping wire, the arch top surface of coupler body is provided with withdraws from the rope connector link, and the handle pole of coupler body just is close to the notch side and is fixed with the second strong magnet, is provided with earth connection connecting portion on the handle pole of coupler body with the opposite one side of second strong magnet, and the handle pole lower part of coupler body still is provided with the taut rope connector link.

2. The rapid grounding clamp for the extra-high voltage transmission lines according to claim 1, wherein the elastic clamping rods comprise a first clamping rod and a second clamping rod, the upper ends of the first clamping rod and the second clamping rod are located on two sides of the first strong magnet, the lower ends of the first clamping rod and the second clamping rod are hinged with the corresponding sides of the inlets of the notches, and the hook body is provided with a pressing mechanism which enables the first clamping rod and the second clamping rod to have clamping force.

3. The rapid grounding clamp for the extra-high voltage transmission lines according to claim 2, wherein the pressing mechanism comprises torsion springs respectively mounted on two sides of a notch of the hook body, one end of each torsion spring is abutted against the hook body, the other end of each torsion spring is abutted against the corresponding first clamping bar or the corresponding second clamping bar, and grooves for the upper ends of the first clamping bar and the second clamping bar to move are formed in the top of the notch.

4. The rapid grounding clamp for the extra-high voltage transmission lines according to claim 2 or 3, wherein the upper parts of the first clamping bar and the second clamping bar are respectively provided with an arc-shaped part, and the two arc-shaped parts are matched to form a clamping opening.

5. The rapid grounding clamp for the extra-high voltage transmission line according to claim 1, 2 or 3, wherein the withdrawing rope connecting buckle is a connecting ring fixed on the arched top surface of the hook body.

6. The rapid grounding clamp for the extra-high voltage transmission line according to claim 1, 2 or 3, wherein a positioning step surface is arranged on the handle rod of the hook body and close to the notch side, and the second strong magnet is arranged on the positioning step surface and fixed on the handle rod of the hook body through a fixing plate.

7. The rapid grounding clamp for the extra-high voltage transmission line according to claim 1, 2 or 3, wherein the grounding wire connecting part is provided with a threaded hole for installing a grounding wire connecting terminal through a bolt.

8. The rapid grounding clamp for the extra-high voltage transmission line according to claim 1, 2 or 3, wherein the tensioning rope connecting buckle is a connecting hole arranged at the lower part of the hook body handle rod.

Images