CN211578485U

CN211578485U - Rain and snow prevention lightning protection porcelain insulator with safety cover

Info

Publication number: CN211578485U
Application number: CN202020132962.3U
Authority: CN
Inventors: 刘进生; 徐立新; 刘家旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-09-25
Anticipated expiration: 2030-01-21

Abstract

A rain and snow prevention and lightning protection porcelain insulator with a safety cover comprises a porcelain insulator main body with a plurality of rain-proof discs, wherein a hat-shaped metal end is arranged at the upper end of the porcelain insulator main body; a metal screw and a fixing nut are arranged on the axis of the lower end of the porcelain insulator main body, and a jointing clamp is arranged at the top end of the metal end; one side of the metal end is connected with a lightning rod which bends downwards, the lower end of the lightning rod is provided with a discharge end facing the lower end of the insulator, and the lower part of the porcelain insulator main body is provided with a discharge head. The inner circumferential surface of the metal end is provided with a plurality of bulges which are uniformly distributed along the circumference. The utility model has the advantages that: a plurality of bulges are arranged on the inner peripheral surfaces of the metal ends at the upper end and the lower end of the porcelain insulator main body, so that the strength of the torsional force between the porcelain insulator and the metal ends is greatly improved; the lightning protection effect is improved by the aid of the aluminum lightning rod connecting piece and the lightning rod. The herringbone spires are arranged on the safety cover, so that birds are prevented from falling off and bird nests are prevented from being built, and bird damage is effectively prevented; the upper portion of safety guard is structure as an organic whole, has improved the leakproofness.

Description

Rain and snow prevention lightning protection porcelain insulator with safety cover

Technical Field

The utility model relates to a take rain-proof snow lightning protection vase insulator of safety guard for electric power transmission line's support.

Background

Take rain-proof snow lightning protection vase insulator of safety guard is the support component that power transmission line used commonly, and prior art's primary structure is equipped with metal end including the vase main part that has rain-proof dish in the upper end and the lower extreme of vase main part, is equipped with metal screw and fixation nut at the axis of lower extreme, is equipped with the top that is used for fixed power line and takes notched Y shape protruding top or binding clip on the top of the metal end at top. One end of the wiring clamp is connected with an electricity testing grounding ring through a connecting arm; one side of the metal end is connected with a lightning rod bent downwards, the lower end of the lightning rod is provided with a discharge end facing the lower end of the insulator, and the lower part of the insulator of the porcelain insulator is provided with a discharge head opposite to the discharge end of the lightning rod; the metal end, the Y-shaped convex top or the wiring clamp, the connecting arm of the electricity testing grounding ring and the root of the lightning rod can be arranged in a safety cover. The metal ends at the upper end and the lower end of the existing porcelain insulator are mutually bonded with the porcelain insulator by adopting a bonding agent (such as epoxy resin or cement), because the porcelain insulator bears gravity and twisting force greatly in use, particularly when an electricity testing grounding ring is arranged, the operation times of hanging a ground wire on the electricity testing grounding ring are many, and because of the action of a lever, the torsion of the electricity testing grounding ring to the metal end at the upper end is large, the movement between the porcelain insulator and the metal end is easily caused, and the corrosion of metal parts in a safe operation safety shield of a circuit is influenced; bird damage (damage caused by the fact that the bird pecks the cover body is fallen; bird nests are built) is easily caused on the flat top of the safety cover.

In addition, in order to improve the lightning protection effect, it is necessary to improve the electrical conductivity of the lightning rod connected thereto, and in order to reduce the cost, the metal terminal is generally made of aluminum, but the bonding structure between the aluminum metal terminal and the porcelain insulator is not firm.

Disclosure of Invention

The utility model aims at providing a take rain-proof snow lightning protection vase insulator of safety guard to solve the above-mentioned problem that prior art exists.

The technical scheme of the utility model is that: a rain and snow prevention and lightning protection porcelain insulator with a safety cover comprises a porcelain insulator main body with a plurality of rain-proof discs, wherein a cap-shaped metal end is arranged at the upper end of the porcelain insulator main body, and the metal end and the porcelain insulator main body are mutually bonded by adopting a bonding agent; a metal screw and a fixing nut are arranged on the axis of the lower end of the porcelain insulator main body, and a jointing clamp is arranged at the top end of the metal end; one side of the metal end is connected with a lightning rod which is bent downwards, the lower end of the lightning rod is provided with a discharge end facing the lower end of the insulator, the lower part of the porcelain insulator main body is provided with a discharge head opposite to the discharge end of the lightning rod, and the porcelain insulator is characterized in that the inner circumferential surface of the metal end is provided with a plurality of bulges which are uniformly distributed along the circumference.

The utility model has the advantages that: a plurality of bulges are arranged on the inner peripheral surfaces of the metal ends at the upper end and the lower end of the porcelain insulator main body, so that the strength of the torsional force between the porcelain insulator and the metal ends is greatly improved; the metal end is made of iron materials, so that the bonding strength between the porcelain insulator and the metal end is further improved, and the service life is prolonged; the lightning protection effect is improved by the aid of the aluminum lightning rod connecting piece and the lightning rod. The herringbone spires are arranged on the safety cover, so that birds are prevented from falling off and bird nests are prevented from being built, and bird damage is effectively prevented; the upper portion of safety guard is structure as an organic whole, has improved the leakproofness.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention (a high-voltage insulator, a plurality of disc-type rain-proof discs, a lightning rod and a single-side supporting arm connected with a discharge head);

fig. 2 is a schematic structural view of a second embodiment of the present invention (the first embodiment is provided with a safety cover);

FIG. 3 is a right side view of FIG. 2;

fig. 4 is a schematic perspective view of a third embodiment of the present invention (a double-side support arm is modified from the first and second embodiments, and a ground terminal is mounted at the other end of the support arm);

fig. 5 is a schematic perspective view of a fourth embodiment of the present invention (low-voltage insulator, single umbrella-shaped rain-proof plate, discharge head with lightning rod and single-side supporting arm);

fig. 6 is a schematic structural diagram of a fifth embodiment of the present invention (the embodiment shown in fig. 5 is added with a safety cover);

fig. 7 is a schematic perspective view of a sixth embodiment of the present invention (a double-side supporting arm is modified from the embodiment of fig. 5, and the other end of the supporting arm is provided with a grounding terminal);

fig. 8 is a schematic perspective view of a seventh embodiment of the present invention (an electroscopic grounding ring is added on the basis of the first embodiment);

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a top view of FIG. 9;

fig. 11 is a schematic structural diagram of an eighth embodiment of the present invention (a safety cover is installed on the basis of the embodiment of fig. 9);

FIG. 12 is a right side view of FIG. 11;

fig. 13 is a schematic structural view of a ninth embodiment of the present invention (a double-sided support arm is modified from the seventh embodiment, and the other end of the support arm is provided with a ground terminal);

fig. 14 is a schematic perspective view of a tenth embodiment of the present invention (low-voltage insulator, single umbrella-shaped rain-proof plate, discharge head with an electricity-testing grounding ring, lightning rod and single-side supporting arm);

fig. 15 is a schematic structural diagram of an eleventh embodiment of the present invention (a safety cover is installed on the basis of the embodiment of fig. 14);

FIG. 16 is a right side view of FIG. 15;

fig. 17 is a schematic perspective view illustrating a twelfth embodiment of the present invention (in which a double-side support arm is modified based on the eleventh embodiment, and a ground terminal is installed at the other end of the support arm);

fig. 18 is an axial sectional view of the metal end of the upper end of the porcelain insulator body of the present invention;

3 FIG. 3 19 3 is 3 a 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 18 3; 3

Fig. 20 is an axial sectional view of the metal end of the lower end of the porcelain insulator body of the present invention;

fig. 21 is a sectional view B-B of fig. 20.

Detailed Description

Referring to fig. 1, 18-21, the first embodiment of the present invention relates to a rain-snow-proof and lightning-proof insulator with a safety cover, which comprises a porcelain insulator main body 1 with four (may be 3-5) disc-shaped rain-proof discs, a cap-shaped metal end 5 is respectively disposed at the upper end and the lower end of the porcelain insulator main body 1, and the metal end 5 and the porcelain insulator main body 1 are bonded to each other by a bonding agent. A metal screw 6 and a fixing nut are arranged on the axis of the lower end (namely the bottom end of the metal end 5) of the porcelain insulator main body 1, and a jointing clamp 2 is arranged on the top end of the upper end of the metal end 5. A lightning rod 4 bent downward is connected to one side of the upper metal end 5, and a discharge end 41 facing the lower end of the insulator is provided at the lower end of the lightning rod 4. An L-shaped discharge head supporting arm 7 is arranged on a metal screw 6 below a metal end 5 at the lower end of the porcelain insulator, one end of the discharge head supporting arm 7 is bent upwards, and a discharge head 8 corresponding to the discharge end 41 is arranged.

The jointing clamp 2 comprises a bottom plate, a top plate, screw rods 21 and nuts, the top ends of the two screw rods 21 are welded at the top end of the metal end 5 at the upper end, through holes corresponding to the screw rods 21 are formed in the bottom plate and the top plate, the screw rods 21 are inserted into the through holes, and the bottom plate and the top plate are fastened through the nuts. The root of the lightning rod 4 is connected to the top end of the metal end through a lightning rod connecting piece, the lightning rod connecting piece comprises a top disc 13 and a downward bent end connected with one end of the top disc 13, and the top disc 13 is fixed between the lower surface of the bottom plate of the jointing clamp 2 and the top end of the metal end 5 at the upper end; a lightning rod connecting pipe 14 is arranged on the outer side of the bent end, and the root of the lightning rod 4 is fixed (bonded, welded or inserted in an interference fit manner) in a hole of the lightning rod connecting pipe 14; the metal end 5 is made of soft iron; the lightning rod connecting piece, the lightning rod 4 and the discharge head 8 are made of aluminum materials, so that the electric conductivity is improved.

The discharge head support arm 7 may have a U-shaped configuration as shown in fig. 4, and one end of the discharge head support arm 7 is connected to the discharge head 8 and the other end is connected to the ground terminal 9.

Four (3-8) protrusions 52 (elongated in the axial direction, see fig. 18-21) are provided on the inner peripheral surface of the metal end 5 at the upper and lower ends of the porcelain insulator body 1, and are uniformly distributed along the circumference. The protrusion 52 may be formed by punching a long and narrow groove 51 in the radial direction on the outer circumferential surface of the metal end 5 and forming the protrusion 52 on the inner circumferential surface of the metal end 5. The projection 52 may also penetrate to the open end of the metal end 5, so that the projection 52 can be formed at a time when the metal end 5 is press-molded. The center of the bottom end of the metal end 5 at the lower end is provided with a through hole 53 for passing through the metal screw 6 and welding with each other.

Referring to fig. 2 and 3, the metal terminal 5 at the upper end, the terminal block 2 and the root of the lightning rod 4 (the connection point with the metal terminal 5 at the upper end) in the previous embodiment are all installed in an insulating safety cover 3 (the power line protection tube 31 for passing through the power line is provided on the left and right sides thereof, and the round opening 33 for passing through the root of the lightning rod 4 is provided under the power line protection tube 31 at one end). The safety cover 3 is made of flexible insulating material (such as rubber, plastic or plastic), and the top and the upper parts of the power line protective tube 31 are of an integral structure; the lower part of the safety cover 3 is divided into two parts by taking the center of the power line protective pipe 31 as an interface, and the edges of the interface at the two sides are provided with butt joint edges 34 and are mutually connected by butt joint pins 12; the top of the safety cover 3 and the power line protective tube 31 are respectively provided with a herringbone peak 35 and a herringbone peak 311.

Referring to fig. 5, the fourth embodiment of the present invention is a low voltage insulator, the rain-proof plate is a (1-3) umbrella-shaped plate, the upper structure and the discharge head support arm 7 are the same as the embodiment shown in fig. 1, the bottom of the insulator body 1 has no metal end 5, and is directly connected to the metal screw rod 6.

Referring to fig. 6, in this embodiment, the safety cover 3 is mounted on the embodiment shown in fig. 5, and the structure of the safety cover 3 is the same as that shown in fig. 2 and 3.

Referring to fig. 7, this embodiment changes the L-shaped discharge head support arm 7 of fig. 5 to a U-shaped discharge head support arm 7, and the others are the same.

Referring to fig. 8-10, this embodiment is added with an electroscopic grounding ring 10 on the basis of the embodiment shown in fig. 1, and the rest is the same. The specific structure of electricity inspection ground ring 10 is: an electricity testing grounding ring 10 is connected to one end of the top plate of the wiring clamp 2 through a connecting arm 11. The metal exposed edge 101 of the electricity testing grounding ring 10 extends towards one side, and the width of one end, connected with the electricity testing grounding ring 10, of the connecting arm 11 is also expanded to the side length of the whole connecting edge of the electricity testing grounding ring 10, so that a triangular connecting arm 11 is formed.

Referring to fig. 11-12, this embodiment is added with a safety shield 3 in addition to the previous embodiment, the safety shield 3 is added with a connecting arm outlet 36 on one side of the safety shield shown in fig. 2 and 3, the connecting arm 11 extends out of the connecting arm outlet 36, an interface (for installing the connecting arm 11 during installation) is provided at a portion below the connecting arm outlet 36, butt edges 32 are provided at outer edges of the interface, and the interface is connected with each other by butt pins 12. A rain guard 16 may also be provided over the outside of the connecting arm outlet 36. The other structure of the safety cover 3 is the same as that of the safety cover shown in fig. 2 and 3.

Referring to fig. 13, this embodiment changes the L-shaped discharge head support arm 7 of fig. 9 to a U-shaped discharge head support arm 7, and the others are the same.

Referring to fig. 14, this embodiment is added with an electroscopic grounding ring 10 on the basis of the embodiment shown in fig. 5, and the rest is the same.

Referring to fig. 15-16, this embodiment is added to the previous embodiment with a safety shield 3, the safety shield 3 being the same as that shown in fig. 12 and 13.

Referring to fig. 17, this embodiment changes the L-shaped discharge head support arm 7 in fig. 14 to a U-shaped discharge head support arm 7, and the others are the same.

The utility model discloses can be equipped with chevron shape pinnacle 15 on the horizontal part of discharge head support arm 7 of all low pressure vase insulators (the embodiment shown in fig. 5-7, fig. 14-17). A plurality of spaced apart spikes may also be provided at the top of the chevron-shaped tip 15.

Claims

1. A rain and snow prevention and lightning protection porcelain insulator with a safety cover comprises a porcelain insulator main body with a plurality of rain-proof discs, wherein a cap-shaped metal end is arranged at the upper end of the porcelain insulator main body, and the metal end and the porcelain insulator main body are mutually bonded by adopting a bonding agent; a metal screw and a fixing nut are arranged on the axis of the lower end of the porcelain insulator main body, and a jointing clamp is arranged at the top end of the metal end; one side of the metal end is connected with a lightning rod which is bent downwards, the lower end of the lightning rod is provided with a discharge end facing the lower end of the insulator, and the lower part of the porcelain insulator main body is provided with a discharge head opposite to the discharge end of the lightning rod; the root of the lightning rod is connected to the top end of the metal end through a lightning rod connecting piece, the lightning rod connecting piece comprises a top disc and a downward bent end connected with one end of the top disc, and the top disc is fixed between the lower surface of the bottom plate of the jointing clamp and the top end of the metal end; a lightning rod connecting pipe is arranged on the outer side of the bent end, and the root of the lightning rod is fixed in a hole of the lightning rod connecting pipe; the metal end is made of soft iron; the lightning rod connecting piece, the lightning rod and the discharge head are made of aluminum materials.

2. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 1, wherein the jointing clamp comprises a bottom plate, a top plate, screws and nuts, the top ends of the two screws are welded on the top ends of the metal ends, through holes corresponding to the screws are formed in the bottom plate and the top plate, the screws are inserted into the through holes, and the screw holes are fastened through the nuts.

3. The rain and snow prevention porcelain insulator with the safety cover according to claim 1, wherein the metal end, the jointing clamp and the root of the lightning rod are all installed in the safety cover, power line protection pipes for passing through a power line are arranged at two opposite ends of the safety cover, and a round opening for passing through the root of the lightning rod is arranged below the power line protection pipe at one end; the safety cover is made of bendable insulating materials, and the top and the upper parts of the power line protective pipe are of an integrated structure; the lower part of the safety cover is divided into two parts by taking the center of the power line protective pipe as an interface, and the edges of the interface at the two sides are provided with butt joint edges which are connected with each other by butt joint pins; the top of the safety cover and the power line protective tube is provided with a herringbone peak.

4. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 3, wherein an electroscopic grounding ring is connected to one end of the top plate of the jointing clamp through a connecting arm, the connecting arm penetrates through an outlet of the connecting arm in the middle of one side of the safety cover, an interface is arranged below the outlet of the connecting arm of the safety cover, and butt edges are arranged outside the interface and are connected with each other through butt pins.

5. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 4, wherein the metal exposed edge of the electricity testing grounding ring extends to one side, and the width of the end, connected with the electricity testing grounding ring, of the connecting arm also extends to the side length of the whole connecting edge of the electricity testing grounding ring to form a triangular connecting arm.

6. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 1, wherein the rain-proof plate of the porcelain insulator main body is 3-5 circular discs, and the other cap-shaped metal end is bonded to the bottom end of the porcelain insulator main body by adopting an adhesive.

7. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 1, wherein the rain-proof discs of the porcelain insulator main body are 1-3 umbrella-shaped discs.

8. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 1, wherein one end of the transverse part of an L-shaped discharge head supporting arm is connected to the metal screw, and the other end of the discharge head supporting arm is bent upwards and connected with the discharge head.

9. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 1, wherein a U-shaped discharge head supporting arm is connected to a metal screw at the lower end of the porcelain insulator main body, one end of the discharge head supporting arm is connected with the discharge head, and the other end of the discharge head supporting arm is connected with a grounding terminal.

10. The rain and snow prevention and lightning protection porcelain insulator with the safety cover according to claim 8 or 9, wherein a herringbone peak is arranged on the transverse part of the supporting arm of the discharge head.