CN217788103U

CN217788103U - Suspension insulator

Info

Publication number: CN217788103U
Application number: CN202221656270.4U
Authority: CN
Inventors: 许超财; 樊志明; 田晨; 陶丁; 陈知源
Original assignee: Sujin Shuozhou Coal Gangue Power Generation Co ltd
Current assignee: Sujin Shuozhou Coal Gangue Power Generation Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-11
Anticipated expiration: 2032-06-28

Abstract

The utility model provides a suspension insulator, include the full skirt body and locate the connection cap at full skirt body top still include with this body coupling's of full skirt spliced pole, full skirt body bottom has been seted up and has been held the chamber, the spliced pole is located hold the intracavity, the full skirt body is including first full skirt, second full skirt and the third full skirt that from top to bottom sets gradually, first full skirt second full skirt with the third full skirt is all followed the radial outside extension of full skirt body, wherein, first full skirt with the outer peripheral face of third full skirt all is greater than the outer peripheral face of second full skirt, just the outer peripheral face of first full skirt is greater than the outer peripheral face of second full skirt. The utility model provides a suspension insulator aims at realizing the creepage distance and the insulating nature of increase insulator, improves anti-soil ability.

Description

Suspension insulator

Technical Field

The utility model belongs to the technical field of the transmission line is insulating, more specifically says, relates to a suspension insulator.

Background

The insulator is a special insulating control and can play an important role in an overhead transmission line, and the insulator is various in types and different in shape. The suspension insulator is one of the important devices of the transmission line, is used for suspending a wire and insulating an iron tower, and is used on high-voltage, ultrahigh-voltage and extra-high-voltage transmission lines, so that the safe operation of the transmission line is reliably guaranteed.

The existing suspension insulator is arranged near a chemical plant, salt dirt is easily accumulated on the surface of the suspension insulator, if wet weather such as rain, snow, fog and the like is met, a conductive electrolyte channel is easily formed by the surface dirt, and the current of a lead flows into the ground through the channel to cause phase-to-ground short circuit accidents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suspension insulator aims at realizing the creepage distance and the insulating nature of increase insulator, improves anti-soil ability.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a suspension insulator, includes the full skirt body and locates the connecting cap at full skirt body top still include with this body coupling's of full skirt spliced pole, full skirt body bottom has been seted up and has been held the chamber, the spliced pole is located hold the intracavity, the full skirt body is including first full skirt, second full skirt and the third full skirt that from top to bottom sets gradually, first full skirt the second full skirt with the third full skirt is all followed the radial outside extension of full skirt body, wherein, first full skirt with the outer peripheral face of third full skirt all is greater than the outer peripheral face of second full skirt, just the outer peripheral face of first full skirt is greater than the outer peripheral face of second full skirt.

In a possible implementation manner, the top of the umbrella skirt body is provided with a connecting part protruding upwards, a connecting groove matched with the connecting part is formed in the connecting cap, and the connecting part is inserted into the connecting groove.

In a possible implementation manner, the top of the connecting portion is provided with an arc-shaped connecting protrusion, and a connecting surface matched with the connecting protrusion is arranged in the connecting cap.

In one possible implementation, the outer circumferential surface of the connecting portion is provided with a serrated first engagement surface.

In one possible implementation mode, a hydrophobic layer is arranged outside the umbrella skirt body.

In a possible implementation mode, the connecting column comprises a fastening portion, an axle connecting portion and an extending portion which are sequentially arranged from top to bottom, the diameter of the fastening portion is a conical component which is gradually reduced from top to bottom, the axle connecting portion is a cylindrical component, the diameter of the axle connecting portion is the same as the minimum diameter of the fastening portion, and the extending portion extends downwards to form the accommodating cavity.

In a possible realization, the side wall of the receiving chamber is provided with a serrated second engagement surface.

In a possible implementation, the top of the connecting column is provided with an insulating gasket.

In a possible implementation manner, the periphery of the connecting column is sleeved with an annular connecting sheet, the connecting sheet is provided with a fastening rod, the fastening rod is located in the accommodating cavity, the fastening rod is provided with a plurality of convex blocks along the radial direction, and the convex blocks are radially distributed on the peripheral surface of the fastening rod.

In a possible implementation manner, the plurality of convex blocks radially distributed on the outer peripheral surface of the fastening rod form a reinforcing mechanism, and a plurality of groups of reinforcing mechanisms are arranged on the fastening rod along the axial direction of the fastening rod at intervals.

The utility model provides a suspension insulator's beneficial effect lies in: compared with the prior art, the utility model discloses the outer peripheral face of first full skirt in the suspension insulator is greater than the outer peripheral face of second full skirt and third full skirt, can effectively reduce the dirt on second full skirt and the third full skirt, ensures the creepage distance of insulator in humid environment, and first full skirt clears up for second full skirt and third full skirt comparatively easily moreover, can wash partly with the dirt on the first full skirt when heavy rain, has improved the automatically cleaning ability and the anti-soil ability of insulator. Set up first full-skirt, second full-skirt and third full-skirt on the full-skirt body, for only setting up a full-skirt or two full-skirts, can improve the creepage distance of insulator under the prerequisite of guaranteeing mechanical strength, prevent creepage phenomenon and flashover phenomenon from appearing in the insulator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a suspension insulator according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of an umbrella skirt body adopted in the second embodiment of the present invention;

fig. 3 is a cross-sectional view of the umbrella skirt body and the connecting column provided by the second embodiment of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure: 1. a connecting cap; 2. a shed body; 201. a connecting portion; 2011. a connecting projection; 2012. a first bonding surface; 202. a first shed; 203. a second shed; 204. a third shed; 205. an accommodating chamber; 2051. a second bonding surface; 3. connecting columns; 301. a fastening section; 302. a shaft coupling part; 303. a protruding portion; 4. an insulating spacer; 5. a bonding layer; 6. connecting sheets; 601. a fastening rod; 602. and (4) a bump.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2, the suspension insulator provided by the present invention will now be described. Suspension insulator, including full skirt body 2 and the connecting cap 1 of locating full skirt body 2 top, still include the spliced pole 3 of being connected with

full skirt body

2, 2 bottom of full skirt body have been seted up and have been held the chamber 205, spliced pole 3 is located and is held in the chamber 205, full skirt body 2 is including the first full skirt 202 that sets gradually from top to bottom, second full skirt 203 and third full skirt 204, first full skirt 202, second full skirt 203 and third full skirt 204 all follow the radial outside extension of full skirt body 2, wherein, the outer peripheral face of first full skirt 202 and third full skirt 204 all is greater than the outer peripheral face of second full skirt 203, and the outer peripheral face of first full skirt 202 is greater than the outer peripheral face of second full skirt 203.

The utility model provides a suspension insulator, compared with the prior art, the utility model discloses first full skirt 202's in suspension insulator outer peripheral face is greater than the outer peripheral face of second full skirt 203 and third full skirt 204, can effectively reduce the dirt on second full skirt 203 and the third full skirt 204, ensures the creepage distance of insulator in humid environment, and first full skirt 202 clears up comparatively easily for second full skirt 203 and third full skirt 204 in addition, can wash away partly with the dirt on the first full skirt 202 when heavy rain, has improved the automatically cleaning ability and the anti-soil ability of insulator. Set up first full skirt 202, second full skirt 203 and third full skirt 204 on the full skirt body 2, for only setting up a full skirt or two full skirts, can improve the creepage distance of insulator under the prerequisite of guaranteeing mechanical strength, prevent that creepage and flashover phenomenon from appearing in the insulator.

The connecting cap 1 and the connecting column 3 are both metal members, preferably steel members or iron members.

In some embodiments, referring to fig. 2, the top of the skirt body 2 has a connecting portion 201 protruding upward, a connecting groove adapted to the connecting portion 201 is formed in the connecting cap 1, and the connecting portion 201 is inserted into the connecting groove.

After connecting cap 1 and connecting portion 201 are pegged graft in this embodiment, the rethread adhesive will be connected cap 1 and connecting portion 201 bonding, and the binder after the solidification forms tie coat 5, and the area of contact between connecting portion 201 and the tie coat 5 improves the stability of connecting.

In some embodiments, referring to fig. 2, the top of the connecting portion 201 has an arc-shaped connecting protrusion 2011, and the connecting cap 1 has a connecting surface matching with the connecting protrusion 2011.

The connection protrusion 2011 may further increase a contact surface with the connection cap 1, thereby making the connection of the connection part 201 with the connection cap 1 more stable.

In some embodiments, referring to fig. 2 to 3, the connecting portion 201 has a saw-toothed first engaging surface 2012 on its outer peripheral surface.

Connecting portion 201 and connecting cap 1 are pegged graft the back and are passed through the binder adhesion, and the binder after the solidification forms tie coat 5, and the first composition surface 2012 of cockscomb structure can increase with the area of contact of tie coat 5, improves the fastness of adhesion, avoids connecting portion 201 and tie coat 5 to break away from.

In some embodiments, not shown, the skirt body 2 is provided with a hydrophobic layer outside.

Set up the water repellent layer outside the full skirt body 2 and can reduce the waterproof permeability of full skirt body 2, avoid moisture to soak influence the insulating nature of full skirt body 2 behind the full skirt body 2, also can reduce simultaneously that sewage etc. are attached to full skirt body 2 surfaces, improve full skirt body 2's anti-soil ability.

Optionally, the hydrophobic layer is an RTV anti-pollution flashover coating, room Temperature vulcanized Silicone Rubber (RTV anti-pollution flashover coating) is abbreviated as RTV anti-pollution flashover coating, and the outstanding characteristics of long effect, maintenance-free property and the like are taken as a new technology and a new material to be rapidly developed and widely applied in China. Under severe weather conditions (such as fog, dew, mao Maoyu, etc.), flashover can occur along the moist insulator surface, causing a cable system flashover accident. The pollution flashover threatens the safe and stable operation of a power system, light people influence local power supply, heavy people can influence a power grid, and even the whole power grid is cracked. The influence of the pollution flashover on a power supply system causes huge loss to national economy. The hydrophobicity and hydrophobic mobility of the coating are the key points for remarkably improving the pollution flashover voltage grade. The coating is coated on the surface of the electroceramic, and a layer of glue film is formed after curing. The glue film has excellent hydrophobicity under clean conditions, and after the surface of the glue film is covered by dirt, small molecular hydrophobic groups in the glue film can quickly flee through the dirt layer and migrate to the surface of the dirt layer, so that the surface of the dirt layer also has excellent hydrophobicity. Thus, under humid climates such as fog, dew, capillary rain and the like, the surface of the dirt layer is difficult to wet, and after the dirt layer is wetted for a long time, water flow and water film are not formed on the surface of the dirt layer, but exist independently in a plurality of discontinuous small water drops, so that the generation of leakage current is greatly restrained, and the dirt flashover voltage of the insulator is remarkably improved.

In some embodiments, referring to fig. 3, the connecting column 3 includes a fastening portion 301, a coupling portion 302 and a protruding portion 303 sequentially arranged from top to bottom, the fastening portion 301 is a conical member with a diameter gradually decreasing from top to bottom, the coupling portion 302 is a cylindrical member, the diameter of the coupling portion 302 is the same as the minimum diameter of the fastening portion 301, and the protruding portion 303 extends downward to form the accommodating cavity 205.

After the connecting column 3 is inserted into the accommodating cavity 205, the connecting column 3 is adhered to the accommodating cavity 205 by providing the adhesive layer 5 between the connecting column 3 and the accommodating cavity 205. And set up fastening portion 301 to the great toper component of top diameter, can increase the area of contact with tie coat 5 on the one hand, improve the stability of connecting, the great toper component of on the other hand top diameter and the tie coat 5 butt that forms after the binder solidification prevent that spliced pole 3 from droing with tie coat 5 under the action of gravity.

In some embodiments, referring to fig. 3 to 4, the sidewall of the accommodating chamber 205 is provided with a second engaging surface 2051 having a saw-tooth shape.

The containing cavity 205 is filled with adhesive to connect with the connecting column 3, and the serrated second joint surface 2051 can increase the contact area with the adhesive, thereby improving the adhesive tightness. In addition, the second bonding surface 2051 of the saw-tooth shape forms a groove between two adjacent saw teeth, which can prevent the bonding layer 5 formed after the adhesive is cured from separating from the second bonding surface 2051 under the action of gravity.

In some embodiments, referring to fig. 3 to 4, the top of the connecting stud 3 is provided with an insulating pad 4.

The insulating gasket 4 can avoid the top of the connecting column 3 from directly contacting the accommodating cavity 205, so that abrasion is generated, and the service life of the connecting column 3 and the umbrella skirt body 2 is prolonged.

Alternatively, the insulating gasket 4 is a wood member or a rubber member.

In some embodiments, referring to fig. 3 to 4, an annular connecting piece 6 is sleeved on the outer periphery of the connecting column 3, a fastening rod 601 is disposed on the connecting piece 6, the fastening rod 601 is located in the accommodating cavity 205, the fastening rod 601 is radially disposed with a plurality of protrusions 602, and the plurality of protrusions 602 are radially distributed on the outer peripheral surface of the fastening rod 601.

The fastening rod 601 can increase the contact area between the connecting column 3 and the adhesive, and improve the connection firmness. The plurality of lugs 602 distributed radially can not only further increase the contact area with the adhesive to prevent the connecting column 3 from falling off, but also provide supporting force for the adhesive layer 5 formed by curing the adhesive to prevent the adhesive layer 5 from being separated from the umbrella skirt body 2.

Specifically, the connecting piece 6 is located within the accommodating cavity 205.

In some embodiments, referring to fig. 3 to 4, the plurality of protrusions 602 radially distributed on the outer circumferential surface of the fastening rod 601 form a reinforcing mechanism, and a plurality of sets of reinforcing mechanisms are axially spaced on the fastening rod 601.

Set up multiunit processing agency can further improve the area of contact with the binder, increase the connection stability of spliced pole 3, binder and full skirt body 2.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Suspension insulator, its characterized in that includes the full skirt body and locates the connection cap at full skirt body top still include with this body coupling's of full skirt spliced pole, full skirt body bottom has been seted up and has been held the chamber, the spliced pole is located hold the intracavity, the full skirt body is including first full skirt, second full skirt and the third full skirt that from top to bottom sets gradually, first full skirt second full skirt with the third full skirt all follows the radial outside extension of full skirt body, wherein, first full skirt with the outer peripheral face of third full skirt all is greater than the outer peripheral face of second full skirt, just the outer peripheral face of first full skirt is greater than the outer peripheral face of second full skirt.

2. The suspension insulator according to claim 1, wherein the top of the shed body has a connecting portion protruding upward, and the connecting cap has a connecting groove formed therein to fit the connecting portion, and the connecting portion is inserted into the connecting groove.

3. The suspension insulator according to claim 2, wherein the top of the connecting portion has an arc-shaped connecting protrusion, and the connecting cap has a connecting surface adapted to the connecting protrusion.

4. The suspension insulator of claim 2 wherein said connecting portion has a serrated first engagement surface on its outer peripheral surface.

5. The suspension insulator of claim 1 wherein a hydrophobic layer is provided outside the shed body.

6. The suspension insulator according to claim 1, wherein the connecting column comprises a fastening portion, a coupling portion and a protruding portion, which are sequentially arranged from top to bottom, the diameter of the fastening portion is a conical component gradually decreasing from top to bottom, the coupling portion is a cylindrical component, the diameter of the coupling portion is the same as the minimum diameter of the fastening portion, and the protruding portion extends downwards out of the accommodating cavity.

7. The suspension insulator of claim 1 wherein the side walls of said receiving cavity are provided with a serrated second engagement surface.

8. The suspension insulator of claim 1, wherein the top of said connecting post is provided with an insulating spacer.

9. The suspension insulator according to claim 1, wherein an annular connecting piece is sleeved on the periphery of the connecting column, a fastening rod is arranged on the connecting piece and located in the accommodating cavity, and a plurality of convex blocks are radially distributed on the outer peripheral surface of the fastening rod.

10. The suspension insulator of claim 9, wherein a plurality of said projections radially distributed on the outer circumferential surface of said fastening rod form reinforcing means, and a plurality of sets of said reinforcing means are provided on said fastening rod at intervals along the axial direction thereof.