CN219591774U - Special ground clamp of extra-high voltage preformed armor rod formula anti-induction electricity - Google Patents

Abstract

The utility model relates to an extra-high voltage preformed armor rod type induction electric-preventing special grounding wire clamp, wherein four connecting pieces distributed along the axis of the eight-split confluence wire clamp are fixed on the front face of the eight-split confluence wire clamp through bolts, hoop bodies are fixed at one ends, close to the axis of the eight-split confluence wire clamp, of the two connecting pieces on the same horizontal line, eight bulges which are distributed at equal intervals are fixed on the peripheral wall of the eight-split confluence wire clamp, and wire clamp assemblies are arranged on the front face of each bulge. This special ground connection fastener of extra-high voltage preformed armor rod formula anti-induction electricity, preformed armor rod through setting up in the fastener subassembly carries out the cladding with the wire, makes the skin of wire obtain effectual protection, can not make the wire appear atress too big or the condition such as induced electric injury line, and makes the rigidity reinforcing near the fastener body, suppresses the wire and produces bending and extrusion stress and wearing and tearing because of the vibration, improves the shock-resistant ability of wire to can fight in the twinkling of an eye big induced current.

Description

Special ground clamp of extra-high voltage preformed armor rod formula anti-induction electricity

Technical Field

The utility model relates to the technical field of grounding clamps, in particular to an extra-high voltage preformed armor rod type grounding clamp special for anti-induction electricity.

Background

In China, extra-high voltage refers to the voltage level of direct current of +/-800 kilovolts and alternating current of 1000 kilovolts or more, and a grounding wire clamp mainly comprises a reinforced shell, a puncture blade, a sealing gasket, waterproof silicone grease, a high-strength bolt, a torque nut and a cable terminal cap sleeve. When the cable is required to be branched or connected, the cable branch line terminal is inserted into the waterproof terminal cap sleeve, after the branch position of the main line is determined, the torque array nut on the wire clamp is screwed by the socket wrench, the contact blade pierces the cable insulation layer in the process and contacts the conductor, the sealing gasket ring presses the periphery of the pierced position of the cable, silicone grease in the shell overflows, when the torque reaches a set value, the nut torque mechanism drops, the main line and the branch line are connected, the waterproof performance and the electrical effect reach the parameters required by the standard, and the grounding wire clamp is an indispensable tool in the high-voltage electricity construction and maintenance process and directly related to the personal safety of staff.

Along with the continuous development of national electric power, the safety requirements on electric equipment are gradually improved, common equipment for conducting current from a main line to a down-lead is a parallel groove wire clamp or a T-shaped wire clamp, the parallel groove wire clamp or the T-shaped wire clamp is fixed by bolts, torque cannot be controlled, wires are easily damaged due to overlarge torque, the parallel groove wire clamp and the T-shaped wire clamp which are commonly used at present are small in conductive contact area with a wire due to structural limitation, the common pre-twisted T-shaped wire clamp is improved, but the line overload is caused due to factors such as lightning stroke, short circuit impact, wire aging and the like, instantaneous current is very large, and the wire clamp or the wire protected by the wire clamp is often burnt and damaged, so the special extra-high voltage pre-twisted wire type anti-induction electric grounding wire clamp is provided for solving the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the special grounding wire clamp for the extra-high voltage preformed armor rod type induction electricity prevention is provided, has the advantages of improving the protection property of a wire to prevent induction electricity generation and the like, and solves the problems that common equipment is a parallel groove wire clamp or a T-shaped wire clamp, the common equipment is fixed by bolts, the moment cannot be controlled, the wire is easily damaged due to overlarge moment, and the common equipment is easily slipped and loosened due to overlarge moment.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the special ground wire clamp for the extra-high voltage preformed armor rods and the induction electricity prevention is characterized in that four connecting pieces distributed along the axis of the eight-split converging wire clamp are fixed on the front face of the eight-split converging wire clamp through bolts, hoop bodies are fixed at one ends, close to the axis of the eight-split converging wire clamp, of the two connecting pieces on the same horizontal line, eight bulges distributed at equal intervals are fixed on the peripheral wall of the eight-split converging wire clamp, wire clamp assemblies are arranged on the front face of each bulge, and connecting assemblies are arranged on the outer sides of the eight-split converging wire clamps;

the wire clamp assembly comprises a wire clamp body fixed on the front face of the bulge through a bolt, one end, far away from the axis of the eight-split converging wire clamp, of the wire clamp body is rotationally connected with a cover plate through a pin shaft, a loose joint bolt is rotationally connected in the cover plate through the pin shaft, one end of the loose joint bolt penetrates through the cover plate and is in threaded connection with a locking nut, two sides of the loose joint bolt are movably sleeved with flat washers which are respectively attached to the locking nut and the cover plate, and a preformed armor rod is arranged in the cover plate.

Further, the number of the wire clamp bodies is eight, the wire clamp bodies are distributed at equal intervals along the axis of the eight split converging wire clamps, the unfolding angle of the cover plate is not smaller than eighty degrees, and a rubber compression ring is fixed in the cover plate.

Further, the number of the preformed armor rods is eight, a group of preformed armor rods is arranged in each cover plate, each group of preformed armor rods is formed by encircling a plurality of armor rods, and the preformed armor rods encircle the outer side of the main line.

Further, two between the staple bolt body through two sets of bolts and two sets of bolt fastening, and the outside of two sets of bolts all overlap be equipped with the packing ring of two sets of bolt laminating, just the outside of bolt all overlaps on the staple bolt body is equipped with and is used for carrying out spacing closed round pin to the nut.

Further, coupling assembling includes eight division confluence fastener's outside welding and is located the supporting plate between two fastener bodies of the topside, the right side of supporting plate is fixed with the installation piece through four bolts, the top of installation piece is fixed with the honeycomb duct that is the horizontality, the opening part at both ends all is fixed with the grafting and has the closing cap around the honeycomb duct.

Further, the four bolts on the supporting sheet are in threaded fit with a nut and a gasket, and the length of the flow guide pipe is one hundred centimeters.

Further, each wire clamp body is provided with two connecting ports for the bolts to penetrate through, the connecting ports correspond to the protrusions, and the length between the inner walls of the opposite sides of the two anchor ear bodies is eighteen centimeters.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

this special earth clamp of extra-high voltage preformed armor rod formula anti-induction electricity, preformed armor rod through setting up in the fastener subassembly carries out the cladding with the wire, make the skin of wire can obtain effectual protection, can not make the wire appear atress too big or the condition such as induced electric injury line, and make the rigidity reinforcing near the fastener body, restrain the wire and produce bending and extrusion stress and wearing and tearing because of the vibration, improve the shock-resistant ability of wire, thereby can fight the big induced current in the twinkling of an eye, prevent fastener and wire by burning loss, effectively protect the wire, the ability of anti-induction electricity has been promoted, be equipped with the closing cap that seals it in the both ends of honeycomb duct in the coupling assembling, can protect its inside wire.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a clip assembly of the present utility model;

FIG. 3 is a schematic view of the connection structure of the cover plate and the preformed armor wires of the present utility model;

FIG. 4 is a schematic view of a connection assembly according to the present utility model;

FIG. 5 is a schematic diagram of the connection structure of the flow guiding tube and the sealing cover of the present utility model.

In the figure: the device comprises a 1 eight-split confluence wire clamp, a 2 connecting piece, a 3 hoop body, a 4 bulge, a 5 wire clamp assembly, a 501 wire clamp body, a 502 cover plate, a 503 loose joint bolt, a 504 locking nut, a 505 flat washer, a 506 preformed armor rod, a 6 connecting assembly, a 601 supporting piece, a 602 mounting piece, a 603 honeycomb duct and a 604 sealing cover.

Detailed Description

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, an extra-high voltage pre-twisted wire type anti-induction special grounding wire clamp in this embodiment includes an eight-split confluence wire clamp 1, four connecting pieces 2 distributed along the axis of the eight-split confluence wire clamp 1 are fixed on the front surface of the eight-split confluence wire clamp 1 through bolts, hoop bodies 3 are fixed at one ends of the two connecting pieces 2 on the same horizontal line, which are close to the axis of the eight-split confluence wire clamp 1, the two hoop bodies 3 form a steel pipe cavity and are used for connecting with one end of an auxiliary operation rod, and the two groups of bolts and nuts are used for fixing, eight bumps 4 distributed at equal intervals are fixed on the peripheral wall of the eight-split confluence wire clamp 1, wire clamp assemblies 5 are arranged on the front surface of each bump 4, and the durability of wires is improved, so that instant heavy currents generated due to overload can be resisted, and connecting assemblies 6 are arranged on the outer sides of the eight-split confluence wire clamp 1, and the electric wires of the inner confluence can be protected.

The two anchor ear bodies 3 are fixed by two groups of bolts and two groups of bolts, gaskets attached to the two groups of bolts are sleeved on the outer sides of the two groups of bolts, and a closed pin used for limiting the nuts is sleeved on the outer sides of the bolts on the anchor ear bodies 3.

The length between the inner walls of the opposite sides of the two anchor ear bodies 3 is eighteen centimeters, and the outer diameter of the steel pipe is eighteen centimeters because the steel pipe is attached to the anchor ear bodies 3.

Referring to fig. 2-3, in order to improve the durability of the wire, the wire clamp assembly 5 in this embodiment includes a wire clamp body 501 fixed to the front of the protrusion 4 by a bolt, one end of the wire clamp body 501 away from the axis of the eight-split junction wire clamp 1 is rotatably connected with a cover plate 502 by a pin, a loose joint bolt 503 is rotatably connected in the cover plate 502 by a pin, one end of the loose joint bolt 503 penetrates through the cover plate 502 and is in threaded connection with a locking nut 504, a flat washer 505 with two sides respectively attached to the locking nut 504 and the cover plate 502 is movably sleeved on the outer side of the loose joint bolt 503, in the grounding wire clamp, flat washers 505 are arranged on the outer sides of the bolts, and the flat washers 505 are used for reducing friction, preventing leakage, isolating, preventing loosening or dispersing pressure, and preformed armor wires 506 are arranged in the cover plate 502.

The wire is wrapped by the pre-twisted wire protection line 506, so that the moment of the wire can be effectively controlled, the situation that the wire is damaged due to overlarge stress or loose due to overlarge stress is avoided, the rigidity near the wire clamp body 501 is enhanced, bending and extrusion stress and abrasion of the wire due to vibration are restrained, the vibration resistance of the wire is improved, instant heavy current generated due to overload can be resisted, the wire clamp and the wire are prevented from being burnt, the wire is effectively protected, and the induction resistance is improved.

The number of the wire clamp body 501 is eight, the wire clamp body is distributed along the axis of the eight-split converging wire clamp 1 at equal intervals, the unfolding angle of the cover plate 502 is not less than eighty degrees, a rubber compression ring is fixed in the cover plate 502, the cover plate 502 is protected by the rubber compression ring, meanwhile, the friction force of the preformed armor rods 506 is improved, the preformed armor rods 506 are eight groups, a group of preformed armor rods are arranged in each cover plate 502, each group of preformed armor rods 506 is formed by encircling a plurality of armor rods, the preformed armor rods are encircling the outer side of a main wire, and a closed pin is sleeved on the outer side of a bolt for limiting a nut.

In this embodiment, after the pin shaft is fitted into the hole, the hole is riveted and sealed, and the pin shaft is prevented from falling out.

It should be noted that, after the wire is wrapped by the pre-twisted wire protection strip 506, the vibration resistance of the wire is improved, so that the instant large current generated by overload can be resisted, the wire clamp and the wire are prevented from being burnt, the wire is effectively protected, and the capability of preventing induction is improved.

It will be appreciated that after the preformed armor rod 506 is sleeved on the wire, the preformed armor rod is placed in the cover 502 and rotated by the pin shaft until the rubber compression ring in the cover 502 contacts the preformed armor rod 506, at which time the locking nut 504 is passed through the fixing hole in the cover 502 and is fixed by the locking nut 504 and the flat washer 505.

Referring to fig. 4-5, in order to protect the converging cavity, the connecting assembly 6 in this embodiment includes a supporting plate 601 welded on the outer side of the eight-split converging wire clip 1 and located between two uppermost wire clip bodies 501, a mounting plate 602 is fixed on the right side of the supporting plate 601 through four bolts, a horizontal flow guiding pipe 603 is fixed on the top end of the mounting plate 602, and sealing covers 604 are fixed at openings at the front end and the rear end of the flow guiding pipe 603.

Four bolts on the supporting plate 601 are all in threaded fit with a nut and a gasket, the gasket is a flat gasket 505 and used for reducing friction, isolating and preventing loosening or dispersing pressure, the length of the flow guide pipe 603 is one hundred centimeters, each wire clamp body 501 is provided with two connecting ports for the bolts to penetrate, and the connecting ports correspond to the protrusions 4.

In this embodiment, a converging cavity is formed in the flow guiding tube 603 in the connecting assembly 6, and sealing protection is performed by using the sealing cover 604.

The working principle of the embodiment is as follows:

two staple bolt bodies 3 form a steel pipe cavity for be connected with the one end of auxiliary operation pole, and utilize the cooperation of two sets of bolts and nut to fix, in the ground clamp, the outside of bolt all is equipped with flat washer 505, and utilize flat washer 505 to be used for reducing friction, keep apart, prevent to loosen or dispersion pressure, the bolt outside also overlaps simultaneously and is equipped with the pin that closes, be used for spacing to the nut, put into behind the wire cover plate 502 of preformed armor rod 506, and apron 502 utilizes the round pin axle to rotate, until rubber clamping ring in apron 502 contacts with preformed armor rod 506, at this moment again with locking nut 504 pass the fixed orifices on apron 502, and utilize locking nut 504 and flat washer 505 to fix, at first utilize preformed armor rod 506 can effectually protect the wire, make the moment of wire can obtain effectual control, can not make the wire appear the too big wound line of atress or the condition that the atress is too little and loosen, secondly utilize the rubber clamping ring to protect apron 502, promote the frictional force with preformed armor rod 506 at the same time, at last, in the honeycomb duct 6 is connected with preformed armor rod 506, and seal up, seal up in the cavity is formed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an extra-high voltage preformed armor rod prevents special ground clamp of induced electricity, includes eight split confluence clamps (1), its characterized in that: four connecting pieces (2) distributed along the axis of the eight-split converging wire clamp (1) are fixed on the front face of the eight-split converging wire clamp (1) through bolts, hoop bodies (3) are fixed at one ends, close to the axis of the eight-split converging wire clamp (1), of the two connecting pieces (2) on the same horizontal line, the eight-split converging wire clamp (1) is fixed with eight protrusions (4) distributed at equal intervals on the peripheral wall, wire clamp components (5) are arranged on the front face of the protrusions (4), and connecting components (6) are arranged on the outer sides of the eight-split converging wire clamp (1);

the wire clamp assembly (5) comprises a wire clamp body (501) which is fixed on the front surface of a bulge (4) through a bolt, one end of the wire clamp body (501) away from the axis of the eight-split confluence wire clamp (1) is rotationally connected with a cover plate (502) through a pin shaft, a loose joint bolt (503) is rotationally connected in the cover plate (502) through the pin shaft, one end of the loose joint bolt (503) penetrates through the cover plate (502) and is in threaded connection with a locking nut (504), two sides of the loose joint bolt (503) are movably sleeved with flat washers (505) which are respectively attached to the locking nut (504) and the cover plate (502), and preformed armor rods (506) are arranged in the cover plate (502).

2. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 1, wherein: the number of the wire clamp bodies (501) is eight, the wire clamp bodies are distributed at equal intervals along the axis of the eight split converging wire clamp (1), the unfolding angle of the cover plate (502) is not smaller than eighty degrees, and a rubber compression ring is fixed in the cover plate (502).

3. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 1, wherein: the number of the preformed armor rods (506) is eight, a group of preformed armor rods (506) is arranged in each cover plate (502), and each preformed armor rod (506) is formed by encircling a plurality of armor rods and encircling the outer side of the main line.

4. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 1, wherein: two between staple bolt body (3) through two sets of bolts and two sets of bolt fastening, and the outside of two sets of bolts all overlap be equipped with the packing ring of two sets of bolt laminating, just the outside of bolt all overlaps on staple bolt body (3) is equipped with and is used for carrying out spacing closed round pin to the nut.

5. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 1, wherein: the connecting assembly (6) comprises a supporting plate (601) welded on the outer side of the eight-split confluence wire clamp (1) and located between two wire clamp bodies (501) on the uppermost side, a mounting plate (602) is fixed on the right side of the supporting plate (601) through four bolts, a horizontal flow guide pipe (603) is fixed on the top end of the mounting plate (602), and sealing covers (604) are fixedly inserted into openings of the front end and the rear end of the flow guide pipe (603).

6. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 5, wherein: the four bolts on the supporting sheet (601) are in threaded fit with a nut and a gasket, and the length of the flow guide pipe (603) is one hundred centimeters.

7. The special ground wire clamp for extra-high voltage preformed armor rods to prevent induced electricity according to claim 1, wherein: two connectors through which bolts penetrate are formed in each wire clamp body (501), the connectors correspond to the protrusions (4), and the length between the inner walls of the opposite sides of the two anchor ear bodies (3) is eighteen centimeters.