CN215990131U - Winding and jumping strain insulator-string for overhead transmission line - Google Patents

Abstract

The utility model provides a winding jumping strain insulator-string for an overhead transmission line, which comprises: the disc insulator (11) and the LSZ yoke plate are sequentially connected between the tower and the lead, and the shielding rings are arranged on the outer side of the lead and perpendicular to the lead direction; the shielding rings are spaced from the conducting wire; at least one of the shielding rings is fixedly connected with the LSZ yoke plate, and other shielding rings are fixedly connected with the lead. This technical scheme has set up and has had a plurality of shielding rings of certain interval between the wire, effectively avoids the wire, has avoided the wearing and tearing of wire and shielding ring, has still set up the LSZ yoke plate and has linked together a plurality of disc insulators and many wires.

Description

Winding and jumping strain insulator-string for overhead transmission line

Technical Field

The utility model relates to the field of hardware fittings, in particular to a winding jumping strain insulator-string for an overhead transmission line.

Background

Some large energy bases are far away from a load center and can be realized only by long-distance power transmission, the transmission power of a 1000kV extra-high voltage alternating current transmission line is about 4-5 times of that of a 500kV line, and the +/-800 kV extra-high voltage direct current transmission capacity is more than 2 times of that of a +/-500 kV direct current line. Therefore, ultra-high voltage power transmission is an important way for realizing energy networking.

The strain insulator string is an important element in the process of erecting the power transmission line, mainly comprises a ceramic strain insulator string and a composite strain insulator string, and can effectively isolate an electrified lead from the ground and keep each electric wire at the position of the strain insulator string. In the operation and maintenance work of the power transmission line, the damage of the insulator is inevitable due to the influence of various factors. The strain insulator string is one of the most important products of the current transmission line stringing.

The ultra-high voltage transmission line has the characteristics of high voltage level, large wire section, multiple split numbers and the like. The length of the tension-resistant hardware string can directly determine the investment of the line, the purchase cost of the hardware can be reduced by reducing the length of the hardware string, the construction cost of the hardware string and matched hardware can be reduced, the investment of the line can be reduced by effectively shortening the length of the hardware string, the number of discharge hardware elements can be reduced, and therefore the purposes of reducing the electromagnetic environment of the line and audible corona noise can be achieved. In addition, the problem of interference between the conductor drainage of the tension string and the shielding ring is to be solved, so that the optimization research of the tension string and the matched hardware thereof is to be carried out.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems that the existing strain insulator string is long, the cost is high and the angle cannot be adjusted to adapt to the position of a lead, the utility model provides a winding jumping strain insulator string for an overhead transmission line, which comprises a disc insulator (11), an LSZ connecting plate and a plurality of shielding rings, wherein the disc insulator (11) and the LSZ connecting plate are sequentially connected between a tower and the lead, and the shielding rings are arranged on the outer side of the lead and are vertical to the direction of the lead;

the shielding rings are spaced from the conducting wire;

at least one of the shielding rings is fixedly connected with the LSZ yoke plate, and other shielding rings are fixedly connected with the lead.

Preferably, the LSZ connecting plate comprises: LT type link plates (6), L1 link plates (16) and L2 link plates (17) which are in a trapezoid shape;

the L1 yoke plate (16) comprises an isosceles triangle plate and a square plate; the bottom edge of the isosceles triangle-shaped plate is fixedly connected with one side of the square plate, and the bottom edge of the isosceles triangle is larger than the side of the square plate;

three corners of the isosceles triangular plate of the L1 link plate (16) are respectively provided with a hole;

the L2 yoke plate (17) comprises an isosceles triangle-shaped plate and a trapezoid-shaped plate with the same bottom side as the isosceles triangle, and the isosceles triangle and the trapezoid are integrally formed through the bottom side;

three corners of the isosceles triangular plate of the L2 connecting plate (17) are respectively provided with a hole;

two rows of holes with different numbers are respectively arranged on two bottom edges of the trapezoid LT-type yoke plate (6), wherein each hole of the row of holes with the smaller number of the LT-type yoke plate (6) is connected with a disc insulator (11); in the row of holes with a large number of the trapezoid LT-shaped connecting plates (6), two holes positioned at two sides are respectively connected with a hole at the vertex angle of an isosceles triangle plate of one L1 connecting plate (16), and each hole positioned at the middle part is respectively connected with a hole at the vertex angle of an isosceles triangle plate of one L2 connecting plate (17);

the holes on the bottom angles of the isosceles triangular plate of the L1 yoke plate (16) and the isosceles triangular plate of the L2 yoke plate (17) are respectively connected with a conducting wire.

Preferably, the number of the row of holes with the smaller number is 3;

the number of the row of holes with the larger number is 4.

Preferably, the shield ring includes: a shield ring support plate (26), a first shield ring (18) and a second shield ring (27) arranged in parallel;

the first shielding ring (18) is connected between two adjacent holes on the outer side in the row with the larger quantity of the LT yoke plates (6); the second shielding ring (27) is connected to the LT yoke plate (6) at a position in the middle of a row of holes with a larger number or connected with a lead through a shielding ring support plate (26).

Preferably, the shielding ring support plate (26) connected with the LT connecting plate is of a plate-shaped structure; the side section of the plate-shaped structure is in an s shape.

Preferably, the shield ring support plate (26) connected with a wire includes: the device comprises a ring-shaped main body structure, an extension plate and a plurality of fixing pieces uniformly distributed around the ring-shaped main body structure;

the edge of the annular main body structure is a circular ring, and the hollow part of the annular main body structure is cross-shaped;

one end of the extension plate is fixed at the cross-shaped position of the circular ring structure, and the other end of the extension plate is connected with the second shielding ring (27);

each of the fixing members is connected to one of the wires.

Preferably, the tower and the disc insulator (11) are connected through a first connecting piece, and the first connecting piece sequentially comprises: the device comprises a hanging point hardware fitting (1), a U-shaped hanging ring (2), a DB adjusting plate (3), an adjusting traction plate (4), a right-angle hanging plate (5), a T-shaped yoke plate (6), a hanging plate (7), a special-shaped three-to-two connecting plate (8), a right-angle hanging plate (5) and a ball head hanging ring (10).

Preferably, the LSZ yoke plate is connected with the lead through a second connecting piece;

the second connecting piece includes in proper order: the wire clamp comprises a ZS hanging plate (19), a right-angle hanging plate (5), a DB adjusting plate (3), a U-shaped hanging ring (2) and a strain clamp (28).

Preferably, when the length of the lead is insufficient, an extension rod (22) is arranged between the DB adjusting plate (3) and the U-shaped hanging ring (2).

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model provides a winding jumping strain insulator-string for an overhead transmission line, which comprises: the disc insulator (11) and the LSZ yoke plate are sequentially connected between a tower and a lead, and a plurality of shielding rings are arranged on the outer side of the lead and perpendicular to the lead direction; the shielding rings are spaced from the conducting wire; at least one of the shielding rings is fixedly connected with the LSZ yoke plate, and other shielding rings are fixedly connected with the lead. This technical scheme has set up and has had a plurality of shielding rings of certain interval between the wire, effectively avoids the wire, has avoided the wearing and tearing of wire and shielding ring, has still set up the LSZ yoke plate and has linked together a plurality of disc insulators and many wires.

(2) According to the technical scheme provided by the utility model, the first connecting piece can be positioned on the same straight line by adjusting the DB adjusting plate and the traction plate, so that the length is shortened, and the cost is saved;

(3) according to the technical scheme provided by the utility model, the T-shaped yoke plate, the parallel hanging plate and the special-shaped three-to-two yoke plate are combined, so that when unbalanced stress occurs among 3 disc insulators, the stress of a hanging point hardware fitting is balanced by using the combined design; and because the connecting hanging points are on the same straight line, the length of the connecting piece is shortened.

Drawings

Fig. 1 is a front view of the overall structure of a winding jump strain insulator-string for an overhead transmission line of the present invention;

fig. 2 is a top view of the overall structure of the jump winding tension string for the overhead transmission line of the present invention;

fig. 3(a) is a front view of an overall structure of an overhead transmission line according to another combination mode of a winding jump strain insulator-string;

fig. 3(b) is a side view of an alternative combination of the winding jump tension string for the overhead transmission line of the present invention;

fig. 4(a) is a front view of the hang point fitting of the present invention;

fig. 4(b) is a side view of the hanging point fitting of the present invention;

FIG. 5(a) is a front view of a U-shaped suspension loop of the present invention;

FIG. 5(b) is a side view of a U-shaped suspension loop of the present invention;

FIG. 6 is a front view of a DB adjustment plate of the present invention;

FIG. 7 is a front view of the adjusting plate of the present invention;

FIG. 8(a) is a front view of a right angle peg board of the present invention;

FIG. 8(b) is a rear view of the right angle peg board of the present invention;

FIG. 9 is a schematic view of the T-shaped yoke plate of the present invention;

FIG. 10(a) is a front view of a parallel peg board of the present invention;

FIG. 10(b) is a side view of a parallel peg board of the present invention;

FIG. 11(a) is a front view of a profiled triple change binary plate of the present invention;

FIG. 11(b) is a side view of the shaped triple change biplate of the present invention;

FIG. 12(a) is a front view of a ball end hitch of the present invention;

FIG. 12(b) is a side view of a ball end hitch of the present invention;

fig. 13 is a schematic structural view of a disc insulator according to the present invention;

figure 14(a) is a front view of the grading ring of the present invention;

figure 14(b) is a side view of the grading ring of the present invention;

figure 14(c) is a top view of the grading ring of the present invention;

FIG. 15(a) is a front view of a socket clevis of the present invention;

FIG. 15(b) is a side view of the clevis of the present invention;

fig. 16 is a schematic structural view of the LT yoke plate of the present invention;

FIG. 17(a) is a front view of an L1 yoke plate of the present invention;

FIG. 17(b) is a side view of an L1 yoke plate of the present invention;

FIG. 18(a) is a front view of an L2 yoke plate of the present invention;

FIG. 18(b) is a side view of an L2 yoke plate of the present invention;

FIG. 19(a) is a front view of an LSZ yoke plate of the present invention;

FIG. 19(b) is a side view of an LSZ yoke plate of the present invention;

fig. 20(a) is a top view of an LSZ yoke plate in a jump around strain string for an overhead transmission line;

fig. 20(b) is a side view of an LSZ yoke plate in a jump winding strain string for an overhead transmission line;

fig. 20(c) is a front view of an LSZ yoke plate in a jump around strain insulator string for an overhead transmission line;

fig. 21(a) is a front view of a first shield ring of the present invention;

FIG. 21(b) is a side view of a first shield ring of the present invention;

fig. 22(a) is a front view of a ZS suspending plate of the present invention;

fig. 22(b) is a side view of a ZS cladding panel of the present invention;

fig. 23(a) is a front view of an extension pole of the present invention;

FIG. 23(b) is a rear view of an extension pole of the present invention;

fig. 24(a) is a front view of a strain clamp of the present invention;

FIG. 24(b) is a side view of a strain clamp of the present invention;

FIG. 25 is a schematic view of a jumper spacer structure of the present invention;

fig. 26(a) is a front view of the shield ring support plate of the present invention connected to LT yoke plate 6;

fig. 26(b) is a side view of the shield ring support plate of the present invention attached to LT yoke plate 6;

FIG. 27 is a side view of the shield ring support plate of the present invention connected to a wire;

fig. 28(a) is a front view of a second shield ring of the present invention;

FIG. 28(b) is a side view of a second shield ring of the present invention;

FIG. 29 is a schematic view of the combination of LT type yoke plate, parallel hanging plate, and special-shaped triple-change-two yoke plate of the present invention;

wherein, 1, hanging point hardware fittings; 2. a U-shaped suspension loop; 3. a DB adjusting plate; 4. adjusting the traction plate; 5. a right-angle hanging plate; 6. An LT type yoke plate; 7. hanging plates in parallel; 8. a special-shaped three-to-two connecting plate; 10. a ball head hanging ring; 11. a disc insulator; 12. A grading ring; 13. a socket hanging plate; 16. l1 headers; 17. l2 headers; 18. a first shield ring; 19. a ZS hanging plate; 22. an extension pole; 26. a shield ring support plate; 27. a second shield ring; 28. a strain clamp.

Detailed Description

The utility model relates to a winding jumping strain insulator-string for an overhead transmission line, which reduces the length of a high-voltage side hardware string through the structure optimization and arrangement of hardware fittings, thereby reducing the electromagnetic environment and audible corona noise of the line and solving the problem of interference between the conductor drainage of the strain insulator-string and a shielding ring.

Example 1:

the utility model provides a tension string for an overhead transmission line, which mainly comprises:

the special-shaped triple-transformer double-yoke plate is combined with an LT-type yoke plate 6, a parallel hanging plate, a side ring shielding ring supporting device, an LSZ yoke plate formed by combining the LT-type yoke plate 6 with an L1 yoke plate 16 and an L2 yoke plate 17, a disc insulator, a strain clamp and a lead; one end of the special-shaped triple-transformer two-way plate, the LT-type connecting plate 6 and the parallel hanging plate combination is connected with the iron tower, and the other end of the special-shaped triple-transformer two-way plate is connected with the disc insulator.

The side ring shielding ring supporting device in this embodiment specifically includes a first shielding ring 18, a second shielding ring 27 and a shielding ring supporting frame 26, where the first shielding ring 18 is directly fixed on the T-shaped yoke plate, and the second shielding ring 27 is fixed on the T-shaped yoke plate or the wire through the shielding ring supporting frame 26.

As shown in fig. 19(a) and 19(b), the LSZ yoke plate includes: LT type headers 6, L1 headers 16 and L2 headers 17 in the form of trapezoids;

the L1 yoke plate 16 comprises an isosceles triangle shaped plate and a square shaped plate; the bottom edge of the isosceles triangle-shaped plate is fixedly connected with one side of the square plate, and the bottom edge of the isosceles triangle is larger than the side of the square plate;

three corners of the isosceles triangular plate of the L1 yoke plate 16 are respectively provided with a hole;

the L2 yoke plate 17 comprises an isosceles triangle-shaped plate and a trapezoid-shaped plate with the same bottom side as the isosceles triangle, and the isosceles triangle and the trapezoid are integrally formed through the bottom side;

three corners of the isosceles triangular plate of the L2 yoke plate 17 are respectively provided with a hole;

two rows of holes with different numbers are respectively arranged on two bottom edges of the LT-shaped yoke plate 6 which is in a trapezoid shape, wherein each hole of one row of holes with smaller number of the LT-shaped yoke plate 6 is connected with one disc insulator 11; in the row of holes with more quantity of the trapezoid LT-shaped connecting plates 6, two holes positioned at two sides are respectively connected with a hole at the top angle of an isosceles triangle plate of an L1 connecting plate 16, and each hole positioned at the middle part is respectively connected with a hole at the top angle of an isosceles triangle plate of an L2 connecting plate 17;

the holes on the bottom angles of the isosceles triangular plate of the L1 yoke plate 16 and the isosceles triangular plate of the L2 yoke plate 17 are respectively connected with a conducting wire.

The side with the smaller number of holes on the LT-type yoke plate 6 is connected with the disc insulator, and the other side is connected with the lead.

As shown in fig. 1, 2, 3(a) and 3(b), a hanging point fitting 1, a U-shaped hanging ring 2, a DB adjusting plate 3, an adjusting traction plate 4, a right-angle hanging plate 5, a T-shaped connecting plate 6, a parallel hanging plate 7, a special-shaped three-way two-way connecting plate 8, a right-angle hanging plate 5, a ball head hanging ring 10 and a disc insulator 11 are respectively and sequentially arranged between the front part of the disc insulator of the winding jump strain insulator and a cross arm of an iron tower, an equalizing ring 12, a socket hanging plate 13, an LT-shaped connecting plate 6, a right-angle hanging plate 5, an L1 connecting plate 16, an L2 connecting plate 17, a first shielding ring 18, a ZS hanging plate 19, a right-angle hanging plate 5, the DB adjusting plate 3, 3 extension rods 22, a strain clamp 28, a shielding ring supporting plate 26 and a second shielding ring 27 are respectively and the structural schematic diagrams of these parts are shown in fig. 4 to 18 and fig. 21 to 28. (1) The special-shaped triple-change two-link plate is combined with the T-shaped link plate, as shown in FIG. 29:

the special-shaped three-change two-yoke plate 8, the parallel hanging plate 7 and the LT type yoke plate 6 are combined and connected, so that the stress balance of the hanging point hardware fitting is realized when unbalanced stress is applied among the 3 disc insulators. Meanwhile, the connecting hanging points of the special-shaped three-change two-link plate 8 in combined design are on the same straight line, and the length of the connecting piece is shortened.

(2) A side ring shield ring support device as shown in fig. 26(a), 26(b) and 27:

the side ring shield ring strutting arrangement comprises the shield ring, and the shield ring includes in this embodiment: first shielding ring 18, second shielding ring 27 and shielding ring backup pad 26, first shielding ring 18 vertically sets up in wire one end, is fixed in on the LT type yoke plate 6 of LSZ yoke plate, second shielding ring 27 vertically sets up in the wire outside, through shielding ring backup pad 26 and the LT yoke plate 6 fixed connection of LSZ yoke plate or be connected with the wire. The first shielding ring 18 and the second shielding ring 27 are located at two sides of the connection part of the lead and the L1 yoke 16 or the L2 yoke 17 through the connecting component, and are used for shielding interference signals at the connection part of the lead.

The first and second shield rings 18 and 27 each comprise an oval bracket and two U-shaped legs as shown in fig. 21(a) and 21(b) and fig. 28(a) and 28 (b);

the end parts of the two U-shaped supporting legs are fixedly arranged on the oval support;

the bent ends of the two U-shaped legs are not on the same plane as the elliptical bracket, the bent end of the U-shaped leg of the first shielding ring 18 is provided with a hole fixedly connected with the LT yoke plate 6, and the bent end of the U-shaped leg of the second shielding ring 27 is provided with a hole fixedly connected with the shielding ring support plate 26;

the minimum distance between two legs of the U-shaped legs of the first shielding ring 18 is greater than the distance between two holes respectively connected with wires, which are arranged on the L1 yoke plate 16 and the L2 yoke plate 17.

(3) The structure of the shield ring support plate 26 connected to the LT yoke plate 6 of the LSZ yoke plate is shown in fig. 26(a) and 26(b), and includes a small S-shaped plate structure, one end of the plate structure in the structure is provided with holes fixedly connected to the LT yoke plate 6 of the LSZ yoke plate, and the other end is provided with a plurality of groups of holes fixedly connected to the U-shaped legs of the second shield ring 27, and the number of the holes in each group is a multiple of 2. The device can realize the effect of shielding the hardware, and can also adjust the position of the second shielding ring 27 by adjusting the position of the hole fixedly connected with the U-shaped supporting leg of the second shielding ring 27, and the structure of the strain clamp 28 is shown in fig. 24(a) and 24 (b). The LSZ yoke plate comprises: LT type headers 6, L1 headers 16, L2 headers 17, as shown in fig. 16 to 20.

The disc insulator is specifically a disc insulator in this embodiment.

Two rows of holes are arranged on two sides of the LT-shaped yoke plate 6, the number of each row of holes is multiple, and the number of the two rows of holes is different; one side where the row of holes with the smaller number is located is the front end; the side where the row of holes with a larger number is located is the rear end. In the embodiment, the number of the front end holes of the LT-type yoke plate 6 is 3, and each hole is connected with one disc insulator 11; the number of rear end holes is 4, two outer holes are connected with an L1 yoke plate 16, two inner holes in the rear end 4 are connected with an L2 yoke plate 17, as shown in figures 16 to 18. Each of the L1 yoke plates 16 and the L2 yoke plates 17 has two holes for connecting with the lead wires; each disc insulator 11 is connected with one lead wire, so that 3 lead wires connected by 3 disc insulators are changed into 8 lead wires connected by an L1 yoke plate 16 and an L2 yoke plate 17 by utilizing the LT type yoke plate 6 of the utility model, and a 3-to-8 connection mode is realized. When the LT type yoke plate 6 is allowed by design, holes can be additionally arranged at the rear end of the LT type yoke plate, and more L1 yoke plates 16 and L2 yoke plates 17 can be hooked, so that more connection modes can be realized.

The LSZ yoke plate structure is designed with two forms of an assembly structure and a welding integral structure, as shown in fig. 19(a) and 19(b) and fig. 20(a), 20(b) and 20(c), the assembly structure is designed integrally, so that not only is space saved, but also materials are saved, and the cost is reduced.

The first shielding ring 18 is connected with the LT type yoke plate 6, the connection mode is a locking mode of a flower-shaped nut and a split pin, and the vibration resistance of the shielding ring in a breeze vibration environment is improved.

(4) The shield ring support plate connected to the wire is shown in fig. 27:

the shield ring support plate 26 connected to the wire includes: the device comprises a ring-shaped main body structure, an extension plate and a plurality of fixing pieces uniformly distributed around the ring-shaped main body structure;

the edge of the annular main body structure is a circular ring, and the hollow part of the annular main body structure is cross-shaped;

one end of the extension plate is fixed at the cross-shaped position of the circular ring structure, and the other end of the extension plate is connected with the second shielding ring 27;

each of the fixing members is connected to one of the wires.

The ring structure is fixedly connected to the second shielding ring 27 through holes provided at the bent ends of the U-shaped legs of the second shielding ring 27.

(5) Other parts

And jumper spacers are arranged among the leads and used for keeping a certain distance between the leads and avoiding unnecessary loss.

When the length of the lead is not enough, an extension rod 22 is arranged between the DB adjusting plate 3 and the U-shaped hanging ring 2; as shown in fig. 23(a) and 23(b), the extension rod 22 includes a hanging ring and a rod which are integrally formed, the diameters of two ends of the rod are different, one end with a larger diameter is integrally formed with one end of the hanging ring, and the other end is connected with a wire;

the other end of the hanging ring is connected with the right-angle hanging plate 5.

As shown in fig. 14(a), 14(b) and 14(c), the equalizing ring 12 is provided outside all the disc insulators and fixed to the LT yoke plate 6 of the LSZ yoke plate.

The grading ring 12 is of two semi-elliptical structures, each semi-elliptical structure comprises 2U-shaped supporting legs, the end parts of the supporting legs are fixed inside the semi-elliptical structures, and the bent end parts of the U-shaped supporting legs are provided with holes fixedly connected with LT connecting plates. The number of holes is here taken to be two side by side.

Example 2:

the utility model provides a winding jumping strain insulator-string for an overhead transmission line, which comprises: a disc insulator 11 and an LSZ yoke plate are sequentially connected and arranged between a tower and a lead, and a plurality of shielding rings are arranged on the outer side of the lead and are perpendicular to the lead direction; at least one of the shielding rings is fixedly connected with the LSZ yoke plate, and other shielding rings are fixedly connected with the lead.

The LSZ connecting plate comprises: LT type headers 6, L1 headers 16 and L2 headers 17 in the form of trapezoids;

the L1 yoke plate 16 comprises an isosceles triangle shaped plate and a square shaped plate; the bottom edge of the isosceles triangle-shaped plate is fixedly connected with one side of the square plate, and the bottom edge of the isosceles triangle is larger than the side of the square plate;

three corners of the isosceles triangular plate of the L1 yoke plate 16 are respectively provided with a hole;

the L2 yoke plate 17 comprises an isosceles triangle-shaped plate and a trapezoid-shaped plate with the same bottom side as the isosceles triangle, and the isosceles triangle and the trapezoid are integrally formed through the bottom side;

three corners of the isosceles triangular plate of the L2 yoke plate 17 are respectively provided with a hole;

two rows of holes with different numbers are respectively arranged on two bottom edges of the LT-shaped yoke plate 6 which is in a trapezoid shape, wherein each hole of one row of holes with smaller number of the LT-shaped yoke plate 6 is connected with one disc insulator 11; in the row of holes with more quantity of the trapezoid LT-shaped connecting plates 6, two holes positioned at two sides are respectively connected with a hole at the top angle of an isosceles triangle plate of an L1 connecting plate 16, and each hole positioned at the middle part is respectively connected with a hole at the top angle of an isosceles triangle plate of an L2 connecting plate 17;

the holes on the bottom angles of the isosceles triangular plate of the L1 yoke plate 16 and the isosceles triangular plate of the L2 yoke plate 17 are respectively connected with a conducting wire.

The number of the row of holes with the smaller number is 3;

the number of the row of holes with the larger number is 4.

The shield ring includes: a shield ring support plate 26, a first shield ring 18 and a second shield ring 27 arranged in parallel;

the first shielding ring 18 is connected between two adjacent holes on the outer side in the row with the larger quantity of the LT yoke plates 6; the second shield ring 27 is connected to a position in the middle of the row of holes having a larger number of LT links 6 or to a wire by the shield ring support plate 26.

The shield ring support plate 26 connected to the LT link plate is of a plate-like structure; the side section of the plate-shaped structure is in an s shape.

The shield ring support plate 26 connected with the wire includes: the device comprises a ring-shaped main body structure, an extension plate and a plurality of fixing pieces uniformly distributed around the ring-shaped main body structure;

the edge of the annular main body structure is a circular ring, and the hollow part of the annular main body structure is cross-shaped;

one end of the extension plate is fixed at the cross-shaped position of the circular ring structure, and the other end of the extension plate is connected with the second shielding ring 27;

each of the fixing members is connected to one of the wires.

Be provided with first connecting piece between shaft tower and disc insulator 11 and be connected, first connecting piece includes in proper order: the device comprises a hanging point hardware fitting 1, a U-shaped hanging ring 2, a DB adjusting plate 3, an adjusting traction plate 4, a right-angle hanging plate 5, a T-shaped connecting plate 6, a hanging plate 7, a special-shaped three-to-two connecting plate 8, a right-angle hanging plate 5 and a ball head hanging ring 10.

The hanging point hardware fitting 1 is in a hollow racket shape, one end of the hanging point hardware fitting is connected with a pole tower, and the other end of the hanging point hardware fitting is connected with an end hole of a U-shaped hanging ring 2 which is provided with a hole at the end part and is in a U-shaped structure through a hollow structure; the opening part of the U-shaped hanging ring 2 is hung in one hole on the fan-shaped DB adjusting plate 3, the other hole of the DB adjusting plate 3 is connected with one hole on the adjusting traction plate 4 which is in a scalene triangle shape, the other two holes of the adjusting traction plate 4 are respectively connected with the end holes of the two right-angle hanging plates 5 which are in a U shape, the U-shaped opening parts of the two right-angle hanging plates 5 are connected with two holes arranged on the upper base of the LT-shaped yoke plate 6 which is in a trapezoid shape, the two holes on the lower base of the LT-shaped yoke plate 6 are respectively connected with one ends of the two parallel hanging plates 7, the other ends of the two parallel hanging plates 7 are connected with holes arranged at the end parts of two wings of the special-shaped three-to-two yoke plate 8 which are in a two-wing shape, each of the wings of the special-shaped three-to-two yoke plate 8 and the connection parts of the two wings are respectively provided with a hole which is on the same straight line with the end hole, the holes are respectively connected with the end holes of the 3 right-angle hanging plates 5 in a U shape, the U-shaped openings of the 3 right-angle hanging plates 5 are respectively fixedly connected with the holes of the 3 perforated ball-row-shaped ball head hanging rings 10, and the other ends of the ball head hanging rings 10 are inserted into the insulator strings 11.

The LSZ yoke plate is connected with the lead through a second connecting piece;

the second connecting piece includes in proper order: the tension-resistant wire clamp comprises a ZS hanging plate 19, a right-angle hanging plate 5, a DB adjusting plate 3, a U-shaped hanging ring 2 and a tension-resistant wire clamp 28.

Be the U type structure the U type opening part and two of ZS link plate 19 set up on L1 yoke plate 16 and two L2 yoke plates 17 one of them jogged joint with the wire is connected, the hole that the U type bottom of ZS link plate 19 set up and a tip foraminiferous and be the U type structure the U type opening part fixed connection of right angle link plate 5, the tip hole of right angle link plate 5 with be sectorial one of them jogged joint on the DB adjusting plate 3, another hole of DB adjusting plate 3 with be the U type end connection of U type link 2, the U type open end of U type link 2 with have the link and be the T type structure the link of strain clamp 28 is connected, the other both ends and the wire of strain clamp 28 are connected.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.

Claims (9)

1. A winding-jumping strain insulator-string for an overhead transmission line is characterized by comprising a disc insulator (11), an LSZ yoke plate and a plurality of shielding rings, wherein the disc insulator (11) and the LSZ yoke plate are sequentially connected between a pole tower and a lead, and the shielding rings are arranged on the outer side of the lead and are perpendicular to the direction of the lead;

the shielding rings are spaced from the conducting wire;

at least one of the shielding rings is fixedly connected with the LSZ yoke plate, and other shielding rings are fixedly connected with the lead.

2. The jump string for overhead transmission lines of claim 1, wherein said LSZ link plate comprises: LT type link plates (6), L1 link plates (16) and L2 link plates (17) which are in a trapezoid shape;

the L1 yoke plate (16) comprises an isosceles triangle plate and a square plate; the bottom edge of the isosceles triangle-shaped plate is fixedly connected with one side of the square plate, and the bottom edge of the isosceles triangle is larger than the side of the square plate;

three corners of the isosceles triangular plate of the L1 link plate (16) are respectively provided with a hole;

the L2 yoke plate (17) comprises an isosceles triangle-shaped plate and a trapezoid-shaped plate with the same bottom side as the isosceles triangle, and the isosceles triangle and the trapezoid are integrally formed through the bottom side;

three corners of the isosceles triangular plate of the L2 connecting plate (17) are respectively provided with a hole;

two rows of holes with different numbers are respectively arranged on two bottom edges of the trapezoid LT-type yoke plate (6), wherein each hole of the row of holes with the smaller number of the LT-type yoke plate (6) is connected with a disc insulator (11); in the row of holes with a large number of the trapezoid LT-shaped connecting plates (6), two holes positioned at two sides are respectively connected with a hole at the vertex angle of an isosceles triangle plate of one L1 connecting plate (16), and each hole positioned at the middle part is respectively connected with a hole at the vertex angle of an isosceles triangle plate of one L2 connecting plate (17);

the holes on the bottom angles of the isosceles triangular plate of the L1 yoke plate (16) and the isosceles triangular plate of the L2 yoke plate (17) are respectively connected with a conducting wire.

3. The jump string for overhead transmission lines according to claim 2, wherein the smaller number of holes in one row is 3;

the number of the row of holes with the larger number is 4.

4. The jump string for overhead transmission lines according to claim 2, wherein said shield ring comprises: a shield ring support plate (26), a first shield ring (18) and a second shield ring (27) arranged in parallel;

the first shielding ring (18) is connected between two adjacent holes on the outer side in the row with the larger quantity of the LT yoke plates (6); the second shielding ring (27) is connected to the LT yoke plate (6) at a position in the middle of a row of holes with a larger number or connected with a lead through a shielding ring support plate (26).

5. The hopping string for overhead transmission lines according to claim 4, wherein the shield ring support plate (26) connected to the LT link plate is of a plate-like structure; the side section of the plate-shaped structure is in an s shape.

6. The jump string for overhead transmission lines according to claim 4, wherein said shield ring support plate (26) connected to a conductor comprises: the device comprises a ring-shaped main body structure, an extension plate and a plurality of fixing pieces uniformly distributed around the ring-shaped main body structure;

the edge of the annular main body structure is a circular ring, and the hollow part of the annular main body structure is cross-shaped;

one end of the extension plate is fixed at the cross-shaped position of the circular ring structure, and the other end of the extension plate is connected with the second shielding ring (27);

each of the fixing members is connected to one of the wires.

7. The skip winding tension string for overhead transmission lines according to claim 1, characterized in that the tower and the disc insulator (11) are connected by a first connection element, which in turn comprises: the device comprises a hanging point hardware fitting (1), a U-shaped hanging ring (2), a DB adjusting plate (3), an adjusting traction plate (4), a right-angle hanging plate (5), a T-shaped yoke plate (6), a hanging plate (7), a special-shaped three-to-two connecting plate (8), a right-angle hanging plate (5) and a ball head hanging ring (10).

8. The over-the-wire tension string for overhead transmission lines of claim 1, wherein the LSZ yoke is connected to the conductor by a second connector;

the second connecting piece includes in proper order: the wire clamp comprises a ZS hanging plate (19), a right-angle hanging plate (5), a DB adjusting plate (3), a U-shaped hanging ring (2) and a strain clamp (28).

9. The winding jump string for overhead transmission lines according to claim 8, wherein an extension rod (22) is provided between the DB adjustment plate (3) and the U-shaped suspension loop (2) when the length of the conductor is insufficient.

Images