CN116168905A

CN116168905A - Double-tight multifunctional lightning protection device with shield and electricity-checking grounding ring for insulated line

Info

Publication number: CN116168905A
Application number: CN202310275436.0A
Authority: CN
Inventors: 刘进生; 刘建宁; 刘家旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-05-26

Abstract

The utility model provides a take guard shield and test two tight multi-functional lightning protection device of insulation circuit of electric ground ring, includes interconnect's binding clip and lightning protection mechanism, and this binding clip includes the roof, is equipped with the through-hole at the both ends of roof. The jointing clamp further comprises a top plate fastening bolt, a clamp and a clamp butt-joint bolt, wherein the clamp is formed by two semicircular hoops in a relative mode, the clamp is sleeved in an annular groove at the protruding end of the top end of the porcelain insulator, and two ends of the two semicircular hoops are fastened with each other through the clamp butt-joint bolt respectively; the lower end of the top plate fastening bolt is arranged on the clamp butt-joint bolt, and the upper end of the top plate fastening bolt penetrates through the through hole on the top plate and is provided with a nut; the lug on one side of the clamp is connected with the lightning protection mechanism through a connecting plate; a through hole at one end of the line pressing plate is provided with a notch. The invention has the advantages that: the lightning protection mechanism is connected with the power line through the double-tight connecting mechanism, and is very firm in connection.

Description

Double-tight multifunctional lightning protection device with shield and electricity-checking grounding ring for insulated line

Technical Field

The invention relates to a double-tightening multifunctional lightning protection device with a protective cover and an electroscopic grounding ring for an insulated line, which is used for being installed on an existing porcelain insulator and a power line.

Background

The main structure of the porcelain insulator 1 adopted in the existing transmission line is mostly a porcelain insulator with a rain-proof disc (refer to fig. 6 and 7), a metal screw and a mounting nut 13 (used for being mounted and fixed with a telegraph pole or a transformer) are arranged on the axis of the lower end of the main structure, a protruding end is arranged at the top, an annular groove 11 is arranged at the root of the protruding end, and a power line groove 12 used for fixing a power line is arranged at the top of the protruding end. The porcelain insulator 1 is provided with a lightning protection mechanism (a discharge rod 9, a discharge end 91, and a discharge head 6). When the porcelain insulator is applied, the power line is fixed in the power line groove 12 by using binding wires, and the porcelain insulator has the following disadvantages: because the binding wire can slip or corrode and damage, the power line is separated from the porcelain insulator, and line faults are easy to cause; the discharge rod 9 is connected to the wire fixing clamp on the porcelain insulator 1, and is easy to twist off and weak.

Disclosure of Invention

The invention aims to provide a double-tightening multifunctional lightning protection device with a protective cover and an electroscopic grounding ring for an insulation circuit, which solves the problems in the prior art.

The technical scheme of the invention is as follows: the double-tightening multifunctional lightning protection device for the insulated line with the shield and the electricity-checking grounding ring comprises a wire fixing clamp and a lightning protection mechanism which are connected with each other, wherein the wire fixing clamp comprises a top plate, through holes are formed in two ends of the top plate, a downward protruding part is arranged in the middle of the lower surface of the top plate, and a wire pressing groove is formed in the bottom surface of the protruding part; the lower end of the top plate fastening bolt is arranged on the clamp butt-joint bolt, and the upper end of the top plate fastening bolt penetrates through the through hole on the top plate and is provided with a nut; a lug with a through hole is arranged on one side of the clamp, and the lug is connected with the lightning protection mechanism through a connecting plate; the through hole at one end of the line pressing plate is provided with a notch.

The invention has the advantages that: during use, the clamp is fastened in the annular groove at the upper end of the porcelain insulator, the top plate is connected with the clamp through the top plate fastening bolt, so that the connection is very firm, the separation of the power line and the insulator is effectively avoided, the line fault caused by the separation is prevented, the safety of the power transmission line is improved, and the maintenance cost of the line is reduced. The lightning protection mechanism is connected with the power line through the double-tight connecting mechanism and is very firm. The invention can be independently used for maintaining and reforming the existing power line, and can also be applied to an insulator assembly formed by the insulator of the porcelain insulator.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of the invention (with a lightning protection mechanism and mounted on a porcelain insulator with multiple disc rain-proof discs);

FIG. 2 is a schematic perspective view of a wire clip of the present invention;

FIG. 3 is a schematic view of the construction of the roof fastening bolt of FIG. 2;

fig. 4 is a left (right) view of fig. 3;

FIG. 5 is a schematic perspective view of the top plate fastening bolt of FIG. 2 deflected out of the gap;

fig. 6 is a schematic perspective view of the insulator (with disc rain-proof plate) of the porcelain insulator of fig. 1;

FIG. 7 is a schematic perspective view of another insulator for porcelain insulator (with umbrella-shaped rain-proof plate) to which the present invention is applicable;

FIG. 8 is a schematic perspective view of the embodiment of FIG. 1 with a shield installed;

FIG. 9 is a schematic perspective view of a second embodiment of the present invention (with the addition of an electroscopic grounding ring to the embodiment of FIG. 1);

FIG. 10 is a schematic perspective view of the embodiment of FIG. 9 with a shield installed;

fig. 11 is a schematic perspective view of a third embodiment of the present invention (the insulator of the embodiment shown in fig. 9 is replaced with a insulator of an umbrella-shaped rain-proof plate);

FIG. 12 is a schematic perspective view of the embodiment of FIG. 11 with a shield installed;

fig. 13 is a schematic perspective view of a third embodiment of the present invention (a top plate having protrusions and pressing grooves on both upper and lower surfaces thereof);

FIG. 14 is a schematic perspective view of the top plate fastening bolt of FIG. 13 deflected out of the gap;

FIG. 15 is a schematic perspective view of one embodiment of a discharge head support plate of the present invention;

FIG. 16 is a schematic view of the discharge head support plate of FIG. 15 mounted on an umbrella-type rain-pan insulator;

fig. 17 is a schematic view of the discharge head support plate of fig. 15 mounted on a disc rain-proof porcelain insulator.

Reference numerals illustrate: 1. porcelain insulator, 2, roof, 21, opening, 22, spacing groove, 23, line ball recess, 3, roof fastening bolt, 31, rectangle flat end, 32, flat end through-hole, 4, clamp, 41, lug, 5, clamp butt joint bolt, 6, discharge head, 7, connecting plate, 8, two tight coupling mechanism, 9, lightning rod, 91, discharge end, 10, electroscope ground ring, 11, annular groove, 12, power line recess, 13, installation nut, 14, discharge head backup pad, 141, U-shaped mouth, 15, first guard shield, 16, second guard shield, 20, power line.

Detailed Description

Referring to fig. 1 to 5, the embodiment of the invention comprises a wire fixing clip and a lightning protection mechanism which are connected with each other, wherein the wire fixing clip comprises a top plate 2, a top plate fastening bolt 3, a clamp 4 and a clamp butt joint bolt 5, through holes are formed at two ends of the top plate 2, a downward protruding part is arranged in the middle of the lower surface of the top plate 2, and a wire pressing groove 23 is formed in the bottom surface of the protruding part. The clamp 4 is composed of two semicircular hoops which are opposite to each other, the clamp 4 is sleeved in an annular groove 11 at the protruding end of the top end of the porcelain insulator 1, and two ends of the two semicircular hoops are respectively fastened with each other by a clamp butt-joint bolt 5. The lower end of the top plate fastening bolt 3 is mounted on the clamp butt bolt 5, and the upper end of the top plate fastening bolt 3 passes through the through hole on the top plate 2 and is provided with a nut. A lug 41 with a through-hole is provided on one side of the clip 4, and the lug 41 is connected to the lightning protection means by means of the connecting plate 7. The power line 20 is clamped between the line pressing groove 23 on the bottom surface of the top plate 2 and the power line groove 12 on the top end of the porcelain insulator 1.

A lug 41 with a through hole is arranged on one side of the clamp 4, and the lug 41 is connected with the lightning protection mechanism through a connecting plate 7; the through hole at one end of the line pressing plate 2 is provided with a notch 21.

Preferably, a limit groove 22 is arranged at the upper end of the through hole of the line pressing plate 2 with the notch 21, and the diameter of the limit groove 22 is larger than the width of the notch 21.

The notch 21 of the through hole at one end of the line pressing plate 2 is used for rotating the upper end of the line pressing plate fastening bolt 3 out of or into the through hole. By the structure, the wire pressing plate fastening bolt 3 at the other end and the wire pressing plate 2 can be preassembled, nuts and washers can be preassembled on the wire pressing plate fastening bolt 3 at the other end, the whole set of wire fixing clamps are connected together, the trouble of scattered assembly of all parts is avoided during field installation, the wire pressing plate 2 is only required to be rotated to correspond to the lower (power line groove 12 at the top end of the porcelain bottle) and the wire pressing plate fastening bolt 3 preassembled with the nut is rotated into the through hole from the notch 21, the nut is screwed, the nut (or the washer below) is embedded into the limit groove 22, and the diameter of the limit groove 22 is larger than the width of the notch 21, so that the limit groove 22 is a shrinkage mouth at the notch 21, and the wire pressing plate fastening bolt 3 can be prevented from being removed from the notch 21.

A rubber layer may also be provided on the inside of the band 4.

The lower end of the top plate fastening bolt 3 is provided with a rectangular flat end 31, and a flat end through hole 32 for passing through the clamp butt-joint bolt 5 is arranged in the middle of the rectangular flat end 31. When installed, the flat end through hole 32 is sleeved on the clamp butt bolt 5 (between two opposite semicircular hoops). The power line 20 is placed in the power line groove 12 at the top end of the protruding end of the porcelain insulator 1, the top plate 2 is mounted thereon, the upper end (screw) of the top plate fastening bolt 3 is passed through the through hole in the top plate 2, and the nut is mounted. The firm connection between the top plate 2 and the porcelain insulator 1 is realized.

The lightning protection mechanism comprises a double-tight connecting mechanism 8, a root lightning rod 9 and a discharge head 6, wherein the upper end of the lightning rod 9 is connected with the double-tight connecting mechanism 8, and the lower end of the lightning rod 9 is provided with a discharge end 91 which is bent towards the bottom of the porcelain insulator 1; a discharge head 6 corresponding to the discharge end 91 is provided on one side of the bottom of the porcelain insulator 1. The dual-tight connection mechanism 8 is in the prior art, and comprises: the power line device comprises a bottom plate 81, two end pressing plates 82 and an intermediate pressing plate 83, wherein a groove matched with the power line 20 is formed in one side of the bottom plate 81, the intermediate pressing plate 83 is arranged in the middle of one side of the bottom plate 81 provided with the groove, two end pressing plates 82 are respectively arranged at two ends of one side of the bottom plate 81 provided with the groove, and grooves corresponding to the grooves of the bottom plate 81 are formed in the two end pressing plates 82 and the intermediate pressing plate 83; the two sides of the two-end pressing plate 82 and the upper side of the intermediate pressing plate 83 are connected with the corresponding sides of the intermediate pressing plate 83 by bolts, and clamp the power line 20. The lower edge of the middle pressing plate 83 is connected with the upper end of the lightning rod 9.

Referring to fig. 8, the clip is mounted in the first shroud 15; the double-tightening connection 8 is mounted in the second shield 16. Threading openings 151 for passing through the power line 20 are formed at opposite sides of the first shield 15, and the threading openings 151 are penetrated downward; the two sides (two vertical sides) of the first shield 15 perpendicular to the threading opening 151 and the bottom side (between the bottom ends of the two vertical sides) are divided into two half parts which are mutually buckled, and the two sides of the two half parts are provided with a first butt joint edge 152, and the butt joint edges of the two half parts are mutually butt-jointed through a hasp. The two ends of the second shield 16 are respectively provided with a necking 161 for passing through the power line 20, the second shield 16 is divided into two half parts which are mutually buckled from the part below the axis of the necking 161, the lower sides of the two half parts are provided with second butt joint edges 162, and the second butt joint edges 162 of the two half parts are mutually butt jointed through a buckle; the first shield 15 and the second shield 16 are both made of plastic or rubber. When the electric power line protective cover is installed, two half parts of the first protective cover 15 are arranged on the wire fixing clamp, the threading opening 151 corresponds to the electric power line 10 and moves downwards to be in place, then the two half parts are buckled, and the corresponding butt joint edges 142 between the two half parts are mutually butted together by using the hasp. The second shield 16 is mounted in a similar manner.

Referring to fig. 9, this embodiment connects an L-shaped metal rod to the lightning rod 9 of the embodiment shown in fig. 1, and forms a rectangular electroscopic grounding ring 10 together with the lightning rod 9. This embodiment can also be provided with a first shield 15 and a second shield 16 identical to the previous embodiment, as shown in fig. 10.

The porcelain insulator 1 with the disc-shaped rain-proof disc in the above embodiment can also be a porcelain insulator with other existing structures, such as the porcelain insulator 1 with the umbrella-shaped rain-proof disc shown in fig. 7. An insulator assembly having a lightning protection mechanism and a grounding function may be formed and provided with a corresponding shield (as shown in fig. 11 and 12).

Referring to fig. 13 and 14, the present invention may be provided with protruding portions at the middle portions of the upper and lower surfaces of the wire pressing plate 2, and wire pressing grooves 22 are provided at the top surfaces of the protruding portions of the upper and lower surfaces, wherein the radians of the upper and lower wire pressing grooves 22 are different, and the power lines 20 with different diameters may be fixed by turning the wire pressing plate 2. Other structures and application methods of this embodiment are the same as those of the above embodiment.

Referring to fig. 15, the discharge head 6 is supported by an L-shaped discharge head support plate 14 (as in the prior art), and a through hole (as in the above-described embodiment) or a U-shaped opening 141 (fig. 15) for inserting a metal screw at the bottom of the porcelain insulator 1 is provided at the bottom of the discharge head support plate 14. The U-shaped opening 141 is constructed to facilitate installation of the lightning protection mechanism on the existing insulator without the lightning protection mechanism, and the U-shaped opening 141 of the discharge head support plate 14 may be directly inserted into the metal screw at the lower end of the porcelain insulator and fastened with the installation nut 13 (as shown in fig. 16 and 17).

The invention is fixed by double-tight connection of the double-tight connection mechanism 8 and the top plate 2 with the power line 20, and has the functions of wire fixing, lightning protection and grounding.

Claims

1. The utility model provides a take insulating circuit dual-tightening multi-functional lightning protection device of guard shield and electricity test ground ring, includes interconnect's solidus clamp and lightning protection mechanism, and this solidus clamp includes roof (2), is equipped with the through-hole at the both ends of roof (2), is equipped with decurrent protruding portion in the middle part below roof (2), is equipped with line ball recess (23) in the bottom surface of this protruding portion, its characterized in that, solidus clamp still include roof fastening bolt (3), clamp (4) and clamp butt joint bolt (5), this clamp (4) are formed by two semicircle hoops relatively, in clamp (4) are used for the cover in annular groove (11) of protruding end on insulator (1) top, the both ends of two semicircle hoops are fastened each other with clamp butt joint bolt (5) respectively; the lower end of the top plate fastening bolt (3) is arranged on the clamp butt-joint bolt (5), and the upper end of the top plate fastening bolt (3) penetrates through a through hole in the top plate (2) and is provided with a nut; a lug (41) with a through hole is arranged on one side of the clamp (4), and the lug (41) is connected with the lightning protection mechanism through a connecting plate (7); a through hole at one end of the line pressing plate (2) is provided with a notch (21).

2. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electricity-checking grounding ring according to claim 1, wherein a limit groove (22) is arranged at the upper end of a through hole with a notch (21) of the line pressing plate (2), and the diameter of the limit groove (22) is larger than the width of the notch (21).

3. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electricity-checking grounding ring according to claim 1, wherein a rubber layer is arranged on the inner side of the shroud ring (4).

4. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electricity-checking grounding ring according to claim 1, wherein a rectangular flat end (31) is arranged at the lower end of the top plate fastening bolt (3), and a flat end through hole (32) for penetrating through the clamp butt joint bolt (5) is arranged in the middle of the rectangular flat end (31).

5. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electricity-checking grounding ring according to claim 1, wherein protruding parts are arranged in the middle of the upper surface and the lower surface of the line pressing plate (2), the top surfaces of the protruding parts above and below are respectively provided with the line pressing grooves (22), and the radians of the line pressing grooves (22) above and below are different.

6. The double-tight multifunctional lightning protection device for the insulated line with the protective cover and the electricity-checking grounding ring according to claim 1, wherein the lightning protection mechanism comprises a double-tight connecting mechanism (8), a root discharging rod (9) and a discharging head (6), the upper end of the discharging rod (9) is connected with the double-tight connecting mechanism (8), and a discharging end (91) which is bent towards the bottom of the porcelain insulator (1) is arranged at the lower end of the discharging rod (9); a discharge head (6) corresponding to the discharge end (91) is arranged at one side of the bottom of the porcelain insulator (1).

7. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electroscopic grounding ring according to claim 6 is characterized in that the discharge head (6) is supported by an L-shaped discharge head supporting plate (14), and a through hole or a U-shaped opening (141) for inserting a metal screw at the bottom of the porcelain insulator (1) is arranged at the bottom of the discharge head supporting plate (14).

8. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electricity checking grounding ring according to claim 6 is characterized in that an L-shaped metal rod is connected to the discharging rod (9) and forms a rectangular electricity checking grounding ring (10) together with the discharging rod (9).

9. The double-tightening multifunctional lightning protection device for the insulated line with the protective cover and the electroscopic grounding ring according to claim 6 is characterized in that the wire fixing clip is arranged in the first protective cover (15); the double-tight connecting mechanism (8) is arranged in the second shield (16); threading openings (151) for penetrating through the power line (20) are arranged on two opposite sides of the first shield (15), and the threading openings (151) are penetrated downwards; two sides of the first shield (15) perpendicular to the threading opening (151) and the bottom edge are divided into two half parts which are mutually buckled, a first butt joint edge (152) is arranged on two sides of the two half parts, and the butt joint edges of the two half parts are mutually butt-jointed through a hasp; the two ends of the second shield (16) are respectively provided with a necking (161) for penetrating through the power line (20), the second shield (16) is divided into two half parts which are mutually buckled from the part below the axis of the necking (161), the lower edges of the two half parts are provided with second butt joint edges (162), and the second butt joint edges (162) of the two half parts are mutually butted through a buckle; the first shield (15) and the second shield (16) are made of plastic or rubber.