CN211578482U

CN211578482U - Post porcelain insulator

Info

Publication number: CN211578482U
Application number: CN202020132908.9U
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 pillar porcelain insulator comprises a porcelain insulator main body with a rain-proof disc, 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; the top end of the metal end is provided with a power line fixing mechanism, and the axis of the bottom end of the porcelain insulator main body is provided with a metal screw and a fixing nut. 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 main body and the metal ends is greatly improved; 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

Post porcelain insulator

Technical Field

The utility model relates to a pillar vase insulator for electric power transmission line's support.

Background

The pillar porcelain insulator is a supporting component commonly used for power transmission lines, the main structure of the prior art comprises a porcelain insulator main body with a rainproof disc, a metal end is arranged at the upper end or the lower 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 wiring clamp used for fixing a power line is arranged on the top end of the metal end at the top or a Y-shaped convex top is connected to the top end of the porcelain insulator main body. The metal end of the upper end and the jointing clamp 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 main body by adopting a bonding agent (such as epoxy resin or cement), and because the porcelain insulator bears the gravity and the torsional force greatly in use, the movement between the porcelain insulator and the metal ends is easily caused, and the safe operation of a circuit is influenced; in addition, the top end of the safety cover is a plane and is provided with a butt joint seam, rain and snow are not smoothly drained, and the rain and snow easily permeate into the cover to cause corrosion of metal parts inside the safety cover; bird damage is easily caused on the flat top of the safety cover (the bird pecking cover body is dropped to build a bird nest).

Disclosure of Invention

The utility model aims at providing a pillar vase insulator to solve the above-mentioned problem that prior art exists.

The technical scheme of the utility model is that: a pillar porcelain insulator comprises a porcelain insulator main body with a rain-proof disc, 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; the top end of the metal end is provided with a power line fixing mechanism, and the axis of the bottom end of the porcelain insulator main body is provided with a metal screw and a fixing nut.

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 main body and the metal ends is greatly improved; 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 (high-voltage insulator, multiple disc-type rain-proof discs) of the present invention;

FIG. 2 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 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3

Fig. 4 is an axial sectional view of the metal end of the lower end of the porcelain insulator body of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is a schematic structural diagram of a second embodiment (a safety cover is added to the first embodiment) of the present invention;

FIG. 7 is a left (right) view of FIG. 6;

fig. 8 is a schematic perspective view of a third embodiment (low-voltage insulator, single umbrella-shaped rain-proof plate) of the present invention;

fig. 9 is a schematic structural view of a fourth embodiment of the present invention (a high-voltage insulator, the top end of which is a Y-shaped convex top).

Detailed Description

Referring to fig. 1 to 5, the present invention relates to a first embodiment of a post insulator (high-voltage insulator), which comprises a main body 1 of a porcelain insulator with a rain-proof plate having 4 (3-5) discs, wherein a cap-shaped metal end 5 is respectively disposed at the upper end and the lower end of the main body 1 of the porcelain insulator, and the metal end 5 and the main body of the porcelain insulator are bonded to each other by a bonding agent. The wire connecting clamp 2 is used as a power line fixing mechanism, the wire connecting clamp 2 is in the prior art and comprises a bottom plate, a top plate, screw rods 21 and nuts, the top ends of the two screw rods 21 are welded to 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 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.

Four (3-8) protrusions 52 are uniformly distributed along the circumference on the inner circumferential surface of the metal end 5. 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.

Referring to fig. 6 and 7, in the second embodiment of the present invention, the metal terminal 5 and the jointing clamp 2 at the upper end of the embodiment are both installed in a safety cover 3, and power line protection pipes 31 for passing through power lines are provided at opposite ends of the safety cover 3; the safety cover 3 is made of flexible insulating material (such as rubber, plastic or plastic), and the top and the upper part 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;

herringbone apexes

35 and 311 are respectively arranged on the tops of the safety cover 3 and the power line protective pipe 31.

Referring to fig. 8, the third embodiment of the present invention is a low voltage insulator, the rain-proof plate of the insulator body 1 is 1 (1-3) umbrella-shaped plate, the bottom end has no metal end 5, and other structures are the same as the above embodiments. This embodiment may also be provided with the safety cover 3 (not shown) described above.

Referring to fig. 9, in the fourth embodiment of the present invention, a Y-shaped protrusion 7 (instead of the metal terminal 5 and the terminal clip 2 at the upper end of the first embodiment) is connected to the top end of the porcelain insulator main body 1, and a groove 71 is formed at the top end of the Y-shaped protrusion 7 for binding a power line. The other structure is the same as that of the first embodiment.

Claims

1. A pillar porcelain insulator comprises a porcelain insulator main body with a rain-proof disc, 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; the top end of the metal end is provided with a power line fixing mechanism, and the axis of the bottom end of the porcelain insulator main body is provided with a metal screw and a fixing nut.

2. The porcelain insulator of claim 1, wherein the metal terminal and the power line securing mechanism are each mounted in a safety housing, and power line protection tubes are provided at opposite ends of the safety housing for passing power lines; 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.

3. The porcelain post insulator according to claim 1, wherein said power line fixing means is a terminal clip comprising a bottom plate, a top plate, screws and nuts, wherein the top ends of the two screws are welded to the top ends of the metal ends, through holes corresponding to the screws are provided in the bottom plate and the top plate, and the screws are inserted and fastened by the nuts.

4. The porcelain post insulator of claim 1, wherein the metal terminal of the upper end and the power line fixing means are replaced by a Y-shaped protrusion having a groove at the top end.

5. The post insulator of claim 1 wherein said rain-proof disk of said insulator body is 3-5 disks and another cap-shaped metal end is adhesively bonded to the bottom end of said insulator body.

6. The supporting insulator of porcelain insulator according to claim 1, wherein the rain-proof plate of the main body of porcelain insulator is 1-3 umbrella-shaped plates.