CN217062559U

CN217062559U - Ground wire assembling clamp

Info

Publication number: CN217062559U
Application number: CN202123004899.9U
Authority: CN
Inventors: 权纬太; 贺飞; 贺臻; 皮跃银; 曾阳麟; 马春立; 刘圣; 方文彬
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-07-26
Anticipated expiration: 2031-12-02

Abstract

The utility model provides an earth connection is with equipment forceps holder, establish the fixed binding clip of keeping silent including it, locate in the pincers and with the movable binding clip that fixed binding clip matches and connects, movable binding clip bottom is connected with the screw rod, the screw bolt spiro union of this screw rod and fixed pincers lower extreme, its characterized in that screw rod lower extreme and sleeve upper end swing joint, sleeve lower extreme and insulating bar upper end swing joint to be equipped with the clamp plate of taking the spring above that with movable pincers matched with at the top of keeping silent. The clamp has the advantages that the continuous pressing force is provided between the pressing plate and the movable clamp through the spring, the clamp can be in good contact with wires, cables or equipment, the movable connection of the fixed clamp, the sleeve and the insulating operation rod is adopted, the field assembly, the adjustment and the grounding operation are facilitated, the storage and the carrying are convenient, the clamping instability and the separation of the clamp for the grounding wire caused by accidental movement of the clamp can be avoided through the locking mechanism, the normal grounding is influenced, and the safety of personnel and equipment is guaranteed.

Description

Ground wire assembling clamp

Technical Field

The utility model relates to an earth connection forceps holder, especially an earth connection is with equipment forceps holder belongs to electric power system specialized tool manufacturing and designing technical field.

Background

At present, the clamp for the grounding wire of equipment with voltage class of 10kV or above needs to be provided with an insulating operating rod with a proper and safe distance, and the length of the insulating operating rod changes along with the increase of the voltage class. The traditional clamp and the insulating operating rod for the grounding wire are of an integrated structure, each phase of the grounding wire needs to be provided with one insulating operating rod and one clamp connected with equipment, and therefore when the grounding wire is used at every time, a large number of insulating operating rods and clamps for the grounding wire need to be carried, the use requirement can be met, excessive consumption and cost increase of resources are caused, and carrying and operation are inconvenient. The existing clamp for the grounding wire is mainly divided into a compression spring type structure and a jaw type structure, and the problem of elasticity reduction can occur after the compression spring type structure is used for a long time, so that poor contact is caused; the jaw type structure adopts the matching of a fixed jaw and a movable jaw to clamp wires, cables or equipment, and the movable jaw is propelled by a screw rod, so that the problems that the clamping effect is lost due to the fact that the jaws for grounding wires move accidentally in the using process, the equipment cannot be grounded, safety accidents are caused and the like often occur. There is therefore a need for improvements in the prior art.

Disclosure of Invention

For solving current clamp for earth connection and leading to contact failure because of structural problem, lose because of unexpected the removal and press from both sides tightly easily, make this equipment that should ground connection not have ground connection, and then arouse the incident to and carry, operate inconvenient scheduling problem, the utility model provides an earth connection is with equipment clamp.

The utility model discloses a following technical scheme accomplishes: the assembled tongs for the ground wire comprises a fixed tong head with a tong opening, a movable tong head arranged in the tong opening and matched with the fixed tong head, a screw rod connected with the bottom of the movable tong head and screwed with a screw hole at the lower end of the fixed tong, and is characterized in that the lower end of the screw rod is movably connected with the upper end of a sleeve, the lower end of the sleeve is movably connected with the upper end of an insulating operating rod, and a pressing plate with a spring is arranged at the top of the tong opening and matched with the movable tong.

The fixing pliers comprise an upper horizontal plate, a lower horizontal plate and a vertical side plate connected with one side of the upper horizontal plate and one side of the lower horizontal plate, wherein the other side of the upper horizontal plate and the other side of the lower horizontal plate are provided with openings, so that the jaws form a U-shaped groove with the opening facing one side.

The movable pliers are arranged into a rectangular plate, the movable pliers are horizontally arranged in the pliers opening, the bottom of the movable pliers is connected with the upper end of a screw rod, the lower end of the screw rod penetrates through a vertical screw hole in a horizontal plate under the fixed pliers and extends downwards to be connected with a sleeve, so that the movable pliers rise in the pliers opening and clamp a live cable, a copper plate or an electric equipment conductive part after being drawn close to the upper horizontal plate through rotation of the screw rod, and otherwise, the movable pliers fall in the pliers opening and loosen clamping of the live cable, the copper plate or the electric equipment conductive part.

The clamp plate is a rectangular plate, the clamp plate is horizontally arranged at the top in the clamp port, the bottom surface of the clamp plate is connected with the movable clamp in a matching mode, and the top surface of the clamp plate is connected with the bottom of the upper horizontal plate through a plurality of springs, so that the clamp plate and the movable clamp are matched to compress and clamp the conductive part of the live cable, the copper plate or the electrical equipment between the clamp plate and the movable clamp, and then continuous pressure is provided through the springs, and the problems that the conductive part of the live cable, the copper plate or the electrical equipment is unstable in clamping and loose and the like due to poor contact are avoided.

The sleeve is a vertical cylinder with a screw hole at the top, a cavity in the sleeve and an opening at the bottom, the screw hole and the opening are respectively communicated with the cavity, the screw hole at the top of the sleeve is in threaded connection with the screw rod, a horizontal screw hole is arranged on one side wall of the upper part of the sleeve, and a horizontal locking pin matched and connected with the screw rod is arranged in the horizontal screw hole.

Insulating bar upper end is equipped with the draw-in groove, this draw-in groove with locate the horizontal round pin looks joint in the sleeve cavity to after insulating bar tip stretched into the sleeve cavity, go into on the horizontal round pin through the direct card of draw-in groove, make fixed pincers, sleeve, insulating bar even as an organic whole, drive sleeve, screw rod rotation when rotatory insulating bar, and then drive movable pincers and rise and press from both sides tight electrified cable, copper tablet or electrical equipment conducting part, descend and loosen the centre gripping to electrified cable, copper tablet or electrical equipment conducting part.

The bottom of the fixed clamp is provided with a locking mechanism matched with the sleeve, the locking mechanism comprises a vertical plate which is arranged at the bottom of a horizontal plate under the fixed clamp and extends downwards, the vertical plate is positioned on one side of the sleeve, a plurality of horizontal through holes are arranged at intervals on the vertical plate, and a bolt penetrates through the corresponding horizontal through holes to be spliced with horizontal jacks arranged on the corresponding side walls of the sleeve, so that the sleeve is transversely locked through the locking mechanism, and the phenomenon that clamping instability of a live cable, a copper plate or a conductive part of electrical equipment is caused due to swinging of a jaw is prevented.

A plurality of horizontal through-holes on the vertical board set up along vertical board top-down interval, correspondingly, locate the horizontal jack on the sleeve and establish to a plurality ofly to set up a week along sleeve wall interval, so that select for use the horizontal through-hole of co-altitude not according to screw rod length, select for use the horizontal jack that corresponds according to sleeve rotational position, and then insert the bolt and correspond horizontal through-hole and horizontal jack in, from horizontal locking sleeve, prevent to keep silent the swing and make the centre gripping unstability to electrified cable, copper tablet or electrical equipment conducting part.

The utility model has the advantages and effects of: by adopting the scheme, the pressing plate and the movable clamp can be conveniently pressed continuously through the spring, so that the clamp for the grounding wire can be ensured to be in good contact with a live cable, a copper plate or a conductive part of electrical equipment, in addition, the movable clamp is movably connected with the insulating operating rod through the fixed clamp, the sleeve and the insulating operating rod, the on-site assembly, the adjustment and the grounding operation are both facilitated, the storage and the carrying are convenient, the use requirements can be met only by carrying a plurality of clamp for the grounding wire and a small number of insulating operating rods, and the normal grounding is influenced by the unstable clamping and the separation caused by the accidental movement of the clamp for the grounding wire through the locking mechanism, so that the safety of personnel and equipment is ensured. The insulating operating rod is an ideal insulating operating rod with the end of the grounding wire.

Drawings

Fig. 1 is a structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides a take insulating bar of earth connection end includes: the fixed pincers 7 with the mouth 10 are arranged on the fixed pincers 7, the movable pincers 9 which is arranged in the mouth 10 and matched and connected with the fixed pincers 7 are arranged, the bottom of the movable pincers 9 is connected with a screw 14, the screw 14 is in threaded connection with a threaded hole at the lower end of the fixed pincers 7, and the movable pincers are characterized in that: 14 lower extremes of screw rod and 3 upper ends swing joint of sleeve, 3 lower extremes of sleeve and 1 upper end swing joint of insulating bar to be equipped with the clamp plate 11 of taking spring 12 on it with activity pincers 9 matched with at 10 tops of keeping silent, wherein:

the fixed clamp 7 comprises an upper horizontal plate 13, a lower horizontal plate 15 and a vertical side plate 8 which is connected with the left sides of the upper horizontal plate 13 and the lower horizontal plate 15, the right sides of the upper horizontal plate 13 and the lower horizontal plate 15 are provided with openings, so that the jaw 10 forms a U-shaped groove with the opening facing to the right side;

the movable pliers 9 is a rectangular plate and horizontally arranged in the jaw 10, the bottom of the movable pliers 9 is connected with the upper end of a screw 14, the lower end of the screw 14 passes through a vertical screw hole arranged on a lower horizontal plate 15 of the fixed pliers 7 and extends downwards to be connected with the sleeve 3, so that the movable pliers 9 rises in the jaw 10 through the rotation of the screw 14 to be close to an upper horizontal plate 13 to clamp a conductive part of a live cable, a copper plate or electrical equipment, and conversely, the movable pliers 9 descends in the jaw 10 to loosen the clamping of the conductive part of the live cable, the copper plate or the electrical equipment;

the pressing plate 11 is a rectangular plate, is horizontally arranged at the top in the jaw 10, the bottom surface of the pressing plate is matched and connected with the movable clamp 9, and the top surface of the pressing plate is connected with the bottom of the upper horizontal plate 13 through a plurality of springs 12, so that the pressing plate 11 is matched with the movable clamp 9 to press the live cable, the copper plate or the electric equipment conducting part clamped between the two parts, and continuous pressure is provided through the springs 12, thereby avoiding the problems of unstable clamping, loosening and the like of the live cable, the copper plate or the electric equipment conducting part caused by poor contact;

the sleeve 3 is a vertical cylinder with a screw hole at the top, a cavity in the sleeve and an opening at the bottom, the screw hole and the opening are respectively communicated with the cavity, the screw hole at the top of the sleeve 3 is in threaded connection with the screw rod 14, the right side wall at the upper part of the sleeve 3 is provided with a horizontal screw hole, a horizontal locking screw 17 matched and connected with the screw rod 14 is arranged in the horizontal screw hole, the upper end of the insulating operating rod 1 is provided with a clamping groove 18, the clamping groove 18 is clamped and connected with a horizontal pin 2 arranged in the cavity of the sleeve 3, so that the end part of the insulating operating rod 1 extends into the cavity of the sleeve 3 and is directly clamped and connected onto the horizontal pin 2 through the clamping groove 18, the fixing clamp 7, the sleeve 3 and the insulating operating rod 1 are connected into a whole, the insulating operating rod 1 can be rotated to drive the sleeve 3 and the screw rod 14 to rotate, further drive the movable clamp 9 to rise to clamp the conductive part of a live cable, a copper plate or electrical equipment, and fall to loosen the live cable, Clamping a conductive part of a copper plate or electrical equipment;

the bottom of the fixed clamp 7 is provided with a locking mechanism matched with the sleeve 3, the locking mechanism comprises a vertical plate 4 which is arranged at the bottom of a horizontal plate 15 below the fixed clamp 7 and extends downwards, the vertical plate 4 is positioned at the left side of the sleeve 3, a plurality of horizontal through holes 5 are arranged on the vertical plate at intervals, and a bolt 6 passes through the corresponding horizontal through hole 5 to be inserted into a horizontal jack 16 arranged on the left side wall of the sleeve 3, so that the sleeve 3 is locked transversely through the locking mechanism, and the jaw 10 is prevented from swinging to cause unstable clamping on a live wire cable, a copper plate or an electric equipment conducting part;

a plurality of horizontal through-holes 5 on the vertical board 4 set up along vertical board 4 top-down interval, correspondingly, locate horizontal jack 16 on the sleeve 3 and establish to a plurality ofly to set up a week along 3 wall intervals on the sleeve, so that select for use not horizontal through-hole 5 of co-altitude according to screw 14 length, select for use corresponding horizontal jack 16 according to 3 rotational position on the sleeve, and then insert bolt 6 in corresponding horizontal through-hole 5 and horizontal jack 16.

When in work: firstly, according to the specification of a live cable, a copper plate or a conductive part of electrical equipment, a screw 14 is screwed out of a sleeve 3, after the screw 14 and the sleeve 3 are locked in place, a jaw 10 is used for clamping the live cable, the copper plate or the conductive part of the electrical equipment, an insulating operating rod 1 is rotated to enable the sleeve 3 to drive the screw 14 to rotate, the screw 14 drives a movable clamp 9 to move upwards, the live cable, the copper plate or the conductive part of the electrical equipment between the movable clamp 9 and a pressing plate 11 is clamped, and a grounding wire A connected to the left side of a fixed clamp 7 can be connected with the ground, so that grounding operation is completed, a bolt 6 is inserted into a corresponding horizontal through hole 5 and a horizontal jack 16 according to the field condition, the jaw is transversely fixed, the insulating operating rod 1 can be pulled out, and next grounding operation is prepared.

Claims

1. An assembled clamp for grounding wire is composed of a fixed jaw with a jaw, a movable jaw in said jaw and matched with said fixed jaw, a screw bolt connected to the bottom of movable jaw and screwed to the screw hole on the lower end of fixed jaw, and a sleeve barrel with a lower end and an upper end connected to the lower end of sleeve barrel.

2. The assembly clamp for a ground wire according to claim 1, wherein the fixing clamp comprises an upper horizontal plate, a lower horizontal plate, and a vertical side plate connecting one side of the upper horizontal plate and one side of the lower horizontal plate, and the other side of the upper horizontal plate and the other side of the lower horizontal plate are open, so that the clamp jaw forms a U-shaped groove with the opening facing one side.

3. The assembly clamp of claim 1, wherein the movable clamp is a rectangular plate horizontally disposed in the clamp opening, the bottom of the movable clamp is connected to the upper end of the screw, and the lower end of the screw extends downward through a vertical screw hole formed in the lower horizontal plate of the fixed clamp and is connected to the sleeve.

4. The assembly clamp of claim 1, wherein the pressure plate is a rectangular plate horizontally disposed at a top portion of the inside of the clamp opening, a bottom surface of the pressure plate is coupled to the movable clamp, and a top surface of the pressure plate is connected to a bottom portion of the upper horizontal plate through a plurality of springs.

5. The assembly clamp for the ground wire according to claim 1, wherein the sleeve is a vertical cylinder having a screw hole at the top, a hollow cavity inside, and an opening at the bottom, the screw hole and the opening are respectively communicated with the hollow cavity, wherein the screw hole at the top of the sleeve is screwed with the screw rod, a horizontal screw hole is provided on one side wall of the upper portion of the sleeve, and a horizontal locking pin is provided in the horizontal screw hole and is matched with the screw rod.

6. The assembly clamp holder for a ground wire according to claim 1, wherein the insulating operating rod is provided at an upper end thereof with a locking groove, and the locking groove is locked with a horizontal pin provided in a cavity of the sleeve.

7. The assembly clamp holder for a ground wire according to claim 1, wherein the bottom of the stationary clamp is provided with a locking mechanism which is engaged with the sleeve, the locking mechanism comprises a downwardly extending vertical plate which is provided at the bottom of the lower horizontal plate of the stationary clamp, the vertical plate is provided at one side of the sleeve and is provided with a plurality of horizontal through holes at intervals, and the plug pin passes through the corresponding horizontal through hole and is inserted into the horizontal insertion hole provided in the corresponding side wall of the sleeve.

8. The assembly jaw for ground wires according to claim 7, wherein the plurality of horizontal through holes provided in the vertical plate are provided at intervals from top to bottom along the vertical plate, and correspondingly, the plurality of horizontal insertion holes provided in the sleeve are provided at intervals along the wall of the sleeve by one turn.