CN211929173U

CN211929173U - Arrester vase protection device

Info

Publication number: CN211929173U
Application number: CN202020551212.XU
Authority: CN
Inventors: 陶建
Original assignee: Nanjing Xuanyuan Electric Co ltd
Current assignee: Nanjing Xuanyuan Electric Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-13
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a lightning arrester vase protection device relates to insulator technical field, in case receive the thunderbolt for the insulator among the solution prior art, just can cause the porcelain body to damage, even obvious damage does not appear, its life also can receive the influence, and frequent change leads to the cost consumption too big in thunderstorm height sends out season, and the dismantlement of insulator is changed also comparatively trouble problem moreover. The high-voltage insulator comprises a porcelain tube, a porcelain body umbrella skirt is arranged on the outer side of the porcelain tube, a switching end is arranged above the porcelain tube, a lower switching end is arranged below the porcelain tube, the upper switching end and the lower switching end are connected with the porcelain tube in a combined mode, a high-voltage resistor is arranged inside the upper switching end, a high-voltage fusing resistance wire is arranged at the bottom of the high-voltage resistor, a sealing cover plate is arranged above the high-voltage resistor, the sealing cover plate and the upper switching end are connected through internal threads, and the upper switching end and the lower switching end are identical in structure.

Description

Arrester vase protection device

Technical Field

The utility model relates to an insulator technical field specifically is a lightning arrester vase protection device.

Background

The high-voltage porcelain insulator is a device which is arranged between conductors with different electric potentials or between the conductor and a grounding component and can withstand the action of voltage and mechanical stress. Insulators are various in types and shapes. Although the structures and the shapes of different types of insulators are greatly different, the insulators are composed of an insulating part and a connecting hardware fitting, and the insulators are special insulating control parts and can play an important role in overhead transmission lines. Early-year insulators are mostly used for telegraph poles, and a plurality of disc-shaped insulators are hung at one end of a high-voltage wire connecting tower which is gradually developed, are used for increasing creepage distance and are usually made of glass or ceramics, namely insulators. The insulator should not fail due to various electromechanical stresses caused by changes in environmental and electrical loading conditions, otherwise the insulator will not function significantly and will compromise the service and operational life of the entire line.

However, once the existing insulator is struck by lightning, the porcelain body may be damaged, and even if the existing insulator is not obviously damaged, the service life of the insulator is also influenced, so that the cost consumption is overlarge due to frequent replacement in a thunderstorm season, and the insulator is troublesome to disassemble and replace; therefore, the existing requirements are not met, and a lightning arrester porcelain insulator protection device is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lightning arrester vase protection device to the insulator that provides in solving above-mentioned background art in case suffers the thunderbolt, just can cause the porcelain body to damage, even obvious damage does not appear, its life also can receive the influence, and frequent change leads to the cost consumption too big in the high season of thunderstorm, and the dismantlement of insulator is changed also comparatively trouble problem moreover.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lightning arrester vase protection device, includes high-voltage insulator, high-voltage insulator includes the porcelain tube, the outside of porcelain tube is provided with porcelain body umbrella skirt, the top of porcelain tube is provided with the switching end, the below of porcelain tube is provided with down the switching end, and goes up the switching end and connect end and porcelain tube built-up connection down, the inside of going up the switching end is provided with high-voltage resistor, high-voltage resistor's bottom is provided with high-voltage fusing resistance wire, high-voltage resistor's top is provided with sealed apron, and sealed apron passes through female connection with last switching end, it is the same with lower switching end structure to go up the switching end.

Preferably, the inside of the sealing cover plate is provided with a conductive block, and the sealing cover plate and the high-voltage fusing resistance wire are electrically connected with the high-voltage resistor.

Preferably, a connecting bolt is arranged below the lower adapter end, and the connecting bolt is fixedly connected with a sealing cover plate on the lower adapter end.

Preferably, a fixed metal wire clamp is arranged above the upper switching end, and the fixed metal wire clamp is fixedly connected with a sealing cover plate on the upper switching end.

Preferably, both sides of the fixed metal wire clamp are provided with conductive support rods, the fixed metal wire clamp is electrically connected with the conductive support rods, insulating support rods are arranged below the conductive support rods and fixedly connected with the upper connecting end, and arc extinguishing balls are arranged on the inner sides of one ends of the conductive support rods and the insulating support rods.

Preferably, a movable metal wire clamp is arranged above the fixed metal wire clamp, and the fixed metal wire clamp is connected with the movable metal wire clamp through a locking bolt.

Preferably, the inside of porcelain tube is provided with central resistance tube, and central resistance tube has three, central resistance tube and last switching end and lower switching end electric connection.

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

1. the utility model discloses a fixed metal clamp's both sides all are provided with and are made conductive metal conductive strut, can derive the lightning strike current that passes through the fastener through conductive strut, and can produce point discharge reaction with the arc extinguishing ball of insulating strut inboard below through its inboard arc extinguishing ball, thereby reach the effect of release energy, later through the lightning strike current after the release decay gets into last end, resistance through the end inside carries out the separation to the lightning strike current that gets into, reduce the through-current, avoid leading to porcelain body damage because of the electric current is too high, and still be provided with high-pressure fusing resistance wire in the bottom of high-pressure resistance, when passing through high-pressure resistance excessively high, connecting resistance and porcelain tube high-pressure fusing resistance wire will break off, avoid lightning strike current to pass through porcelain body, protect porcelain body not damaged, only need to change high-voltage resistance and high-pressure fusing resistance wire in the end during later maintenance, the maintenance cost is reduced.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the upper connection end structure of the present invention;

fig. 3 is a schematic view of the sectional structure of the porcelain tube of the present invention.

In the figure: 1. a high-voltage insulator; 2. a porcelain body umbrella skirt; 3. an upper adapter end socket; 4. a lower adapter end; 5. a connecting bolt; 6. a conductive strut; 7. an insulating support rod; 8. arc extinguishing balls; 9. a movable metal wire clamp; 10. fixing a metal wire clamp; 11. locking the bolt; 12. a high-voltage resistor; 13. a high-voltage fusing resistance wire; 14. sealing the cover plate; 15. a porcelain tube; 16. a central resistance tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a lightning arrester porcelain insulator protection device comprises a high-voltage insulator 1, a cable is connected with a grounding component or a lightning arrester through the insulator, the high-voltage insulator 1 comprises a porcelain tube 15, a porcelain body umbrella skirt 2 is arranged on the outer side of the porcelain tube 15, an upper switching end 3 is arranged above the porcelain tube 15, a lower switching end 4 is arranged below the porcelain tube 15, the upper switching end 3 and the lower switching end 4 are connected with the porcelain tube 15 in a combined mode, a high-voltage resistor 12 is arranged inside the upper switching end 3, after lightning current enters, the lightning current can be blocked through the high-voltage resistor 12 inside the ends, the passing current is reduced, the damage of the porcelain body due to the fact that the current is too high is avoided, a high-voltage resistance wire fusing 13 is arranged at the bottom of the high-voltage resistor 12, when the lightning current passes through the high-voltage resistor 12, the connection resistor and the high-voltage fusing resistance wire 13 of the porcelain tube 15, a sealing cover plate 14 is arranged above the high-voltage resistor 12, so that the internal high-voltage resistor 12 is convenient to replace, the sealing cover plate 14 is connected with the upper connecting end 3 through internal threads, and the upper connecting end 3 and the lower connecting end 4 are identical in structure.

Further, a conductive block is arranged inside the sealing cover plate 14 to realize current conduction, and the sealing cover plate 14 and the high-voltage fusing resistance wire 13 are electrically connected with the high-voltage resistor 12.

Furthermore, a connecting bolt 5 is arranged below the lower connecting end 4, and the connecting bolt 5 is fixedly connected with a sealing cover plate 14 on the lower connecting end 4, so that the connecting bolt can be conveniently connected with a corresponding grounding component or a lightning arrester for use.

Further, a fixed metal wire clamp 10 is arranged above the upper connecting end 3, and the fixed metal wire clamp 10 is fixedly connected with a sealing cover plate 14 on the upper connecting end 3.

Further, the both sides of fixed metal clamp 10 all are provided with conductive branch 6, and fixed metal clamp 10 and conductive branch 6 electric connection, conductive branch 6 adopts conductive metal to make, can derive the thunderbolt electric current, conductive branch 6's below is provided with insulating branch 7, insulating branch 7 adopts insulating material to make, can prevent that the electric current from influencing the resistance of last connecting end 3 inside, and insulating branch 7 and last connecting end 3 fixed connection, the inboard of conductive branch 6 and insulating branch 7 one end all is provided with arc extinguishing ball 8, the electric current of deriving by conductive branch 6 can produce point discharge reaction through its inboard arc extinguishing ball 8 with insulating branch 7 inboard arc extinguishing ball 8, reach the effect of release energy.

Further, a movable metal wire clamp 9 is arranged above the fixed metal wire clamp 10, the fixed metal wire clamp 10 is connected with the movable metal wire clamp 9 through a locking bolt 11, and the size of the space between the movable metal wire clamp 9 and the fixed metal wire clamp 10 can be adjusted by rotating a nut on the locking bolt 11, so that the fixed clamping of the cable is realized.

Further, the inside of porcelain tube 15 is provided with central resistance tube 16, and central resistance tube 16 has threely, central resistance tube 16 with last joint end 3 and 4 electric connection of lower joint end, central resistance tube 16 fixes in the inside of porcelain tube 15, after on the lightning current entered into porcelain tube 15, its inside resistance tube will share the consumption with the electric current, can cooperate the arrester to control lightning current to the protection cable does not receive the lightning stroke influence.

The working principle is as follows: when in use, a cable is sleeved between the movable metal wire clamp 9 and the fixed metal wire clamp 10, then the distance between the upper wire clamp and the lower wire clamp is adjusted by rotating the nut on the locking bolt 11, thereby realizing the fixed clamping of the cable, then the connecting bolt 5 on the lower connecting end 4 is connected with the grounding component or the lightning arrester, when the lightning strike occurs, the lightning strike current can be poured onto the metal wire clamp, the two sides of the fixed metal wire clamp 10 are both provided with the conductive supporting rods 6 made of conductive metal, the lightning strike current passing through the wire clamp can be led out through the conductive supporting rods 6, and the arc extinguishing ball 8 on the inner side of the wire clamp can generate the point discharge reaction with the arc extinguishing ball 8 on the inner side of the lower insulating supporting rod 7, thereby achieving the effect of releasing energy, then the lightning strike current after being released and attenuated enters the upper connecting end 3, the group of high-voltage resistors 12 is arranged inside the, resistance can carry out the separation to the thunderbolt electric current of entering, thereby reduce the through current, avoid leading to the porcelain body damaged because of the electric current is too high, and still be provided with high-voltage fusing resistance wire 13 in high-voltage resistance 12's bottom, when through high-voltage resistance 12 when too high, connecting resistance and 15 high-voltage fusing resistance wires of porcelain tube 13 will break off, avoid the thunderbolt electric current to pass through the porcelain body, protection porcelain body does not receive the damage, only need change the inside high-voltage resistance 12 of end and high-voltage fusing resistance wire 13 of end during later stage maintenance can, reduce cost of maintenance, at last the thunderbolt electric current enters into porcelain tube 15, three group's central resistance tubes 16 of the inside porcelain tube 15 will share the consumption with the electric current, can cooperate the arrester to control the thunderbolt electric.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a lightning arrester vase protection device, includes high-voltage insulator (1), its characterized in that: the high-voltage insulator (1) comprises a porcelain tube (15), a porcelain body umbrella skirt (2) is arranged on the outer side of the porcelain tube (15), an upper switching end (3) is arranged above the porcelain tube (15), a lower switching end (4) is arranged below the porcelain tube (15), the upper switching end (3) and the lower switching end (4) are connected with the porcelain tube (15) in a combined mode, a high-voltage resistor (12) is arranged inside the upper switching end (3), a high-voltage fuse resistance wire (13) is arranged at the bottom of the high-voltage resistor (12), a sealing cover plate (14) is arranged above the high-voltage resistor (12), the sealing cover plate (14) is connected with the upper switching end (3) through internal threads, and the upper switching end (3) and the lower switching end (4) are identical in structure.

2. The porcelain insulator protector for lightning arresters according to claim 1, wherein: and a conductive block is arranged in the sealing cover plate (14), and the sealing cover plate (14) and the high-voltage fusing resistance wire (13) are electrically connected with the high-voltage resistor (12).

3. The porcelain insulator protector for lightning arresters according to claim 1, wherein: and a connecting bolt (5) is arranged below the lower adapter end (4), and the connecting bolt (5) is fixedly connected with a sealing cover plate (14) on the lower adapter end (4).

4. The porcelain insulator protector for lightning arresters according to claim 1, wherein: a fixed metal wire clamp (10) is arranged above the upper switching end (3), and the fixed metal wire clamp (10) is fixedly connected with a sealing cover plate (14) on the upper switching end (3).

5. The porcelain insulator protector for lightning arresters according to claim 4, wherein: the both sides of fixed metal fastener (10) all are provided with conducting branch (6), and fixed metal fastener (10) and conducting branch (6) electric connection, the below of conducting branch (6) is provided with insulating branch (7), and insulating branch (7) and last switching end (3) fixed connection, the inboard of conducting branch (6) and insulating branch (7) one end all is provided with arc extinguishing ball (8).

6. The porcelain insulator protector for lightning arresters according to claim 4, wherein: a movable metal wire clamp (9) is arranged above the fixed metal wire clamp (10), and the fixed metal wire clamp (10) is connected with the movable metal wire clamp (9) through a locking bolt (11).

7. The porcelain insulator protector for lightning arresters according to claim 1, wherein: the interior of porcelain tube (15) is provided with central resistance pipe (16), and central resistance pipe (16) have threely, central resistance pipe (16) and last switching end (3) and lower switching end (4) electric connection.