CN210110442U - Rod-shaped composite suspension insulator - Google Patents

Abstract

The utility model discloses a rod-shaped composite suspension insulator, which comprises a core rod, a sheath and large sheds uniformly distributed on the sheath, wherein small sheds are arranged on the sheath between the adjacent large sheds, hardware fittings are respectively and fixedly arranged at the two ends of the core rod, a climbing anti-flash skirt is also arranged on the sheath, the diameter of the climbing anti-flash skirt is larger than that of the large sheds, anti-flash rings with hook-shaped sections are also arranged on the lower surface edges of the climbing anti-flash skirts, the opening space of the anti-flash rings is 1-2cm, at most four leakage holes communicated with the outside are also arranged at the bottom of the anti-flash rings, the amount of dust impurities entering the anti-flash rings is obviously lower than that attached on the outer surface of the insulator in daily use, the possibility of forming a continuous surface in the anti-flash rings by liquid level, dust impurities and the like is effectively reduced, and the probability of forming a continuous conductive film on the surface of the insulator is also effectively, greatly enhances the pollution flashover resistance of the insulator and is beneficial to ensuring the safe operation of a power grid.

Description

Rod-shaped composite suspension insulator

Technical Field

The utility model relates to an insulator field, concretely relates to compound suspension insulator of stick shape.

Background

The insulator is a commonly used component in an electric power system, is arranged between conductors with different electric potentials or a conductor and a grounding component and is used for resisting voltage and mechanical stress, the rod-shaped composite suspension insulator is one of the components, can increase creepage distance and plays an important role in a power transmission line, but the existing rod-shaped composite suspension insulator is only composed of a core rod, a silicon rubber sheath, an umbrella skirt and hardware fittings, dust impurities can be accumulated on the surfaces of the umbrella skirt and the sheath in the daily use process, soluble substances in the dust impurities are dissolved in water in wet weather such as rainy days or open water days, a conductive film is formed on the surfaces of the umbrella skirt and the sheath, pollution flashover is easy to occur, the insulating property of the insulator is obviously reduced, and the safe operation of a power grid is not facilitated, so the rod-shaped composite suspension insulator with stronger pollution flashover resistance is needed.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the background art, the utility model aims to provide a compound suspension insulator of bar-shaped, it has effectively solved the problem that exists among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compound suspension insulator of stick shape, includes plug, sheath and the big full skirt of equipartition on the sheath, still is provided with little full skirt on the sheath between the adjacent big full skirt, the both ends of plug have set firmly the gold utensil respectively, still be provided with the anti-flash skirt of climbing on the sheath, the diameter of the anti-flash skirt of climbing is greater than the diameter of big full skirt, still be provided with the cross-section on the lower surface border of the anti-flash skirt of climbing for hooked anti-flash ring, the opening interval of anti-flash ring is 1-2cm, the bottom of anti-flash ring still is provided with four at most the small opening that is linked together with the external world.

Furthermore, the climbing-increasing anti-flash skirt is positioned between the adjacent large umbrella skirt and the small umbrella skirt.

Furthermore, the core rod and the sheath are respectively made of glass fiber reinforced polyester resin and silicon rubber.

Furthermore, still an organic whole is provided with a plurality of bulge loop on the lower surface of climb-increasing anti-flash skirt.

Furthermore, the material of the convex ring is silicon rubber.

Furthermore, the large umbrella skirt, the small umbrella skirt, the climbing-increasing anti-flashing skirt and the anti-flashing ring are all made of silicon rubber.

Furthermore, the creepage-increasing anti-flashover skirt and the anti-flashover ring are respectively bonded and fixed on the sheath and the creepage-increasing anti-flashover skirt.

The utility model discloses following beneficial technological effect has: the utility model discloses in having used the climbing anti-flashover skirt that increases that sets up on the sheath, the holistic creepage distance of insulator has further been increased, it is the hooked anti-flashover ring to increase to be provided with the cross-section on the climbing anti-flashover skirt in addition, in the daily use, it is showing to be less than the adnexed dust impurity volume on the insulator surface to get into the intra-annular dust impurity volume of anti-flashover, the possibility of liquid level and dust impurity etc. at the intra-annular formation continuous surface of anti-flashover has effectively been reduced, the probability that the insulator surface formed continuous conductive film has also effectively been reduced, the anti-pollution flashover performance of insulator has been strengthened greatly.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic sectional view of an embodiment of the anti-flashover skirt according to the present invention;

fig. 4 is a schematic view of the overall structure of the anti-flash ring according to the embodiment of the present invention;

fig. 5 is an assembly structure diagram of the mandrel, the sheath and the hardware fitting according to the embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, the rod-shaped composite suspension insulator according to this embodiment includes a core rod 1, a sheath 2, and large sheds 3 uniformly distributed on the sheath 2, a small shed 4 is further disposed on the sheath 2 between the adjacent large sheds 3, hardware fittings 5 are respectively fixedly disposed at two ends of the core rod 1, the hardware fittings 5 are screwed or bonded with the core rod 1, the sheath 2 is disposed at the outer side of the core rod 1 and the end of the hardware fittings 5 in a covering manner, the hardware fittings 5 at two ends of the core rod 1 are respectively a steel cap and a steel foot, so as to facilitate the series connection between multiple suspension insulators, a clamping groove matched with the steel foot is disposed on the steel cap, a locking pin is disposed in the clamping groove, the form and the connection manner of the hardware fittings 5 are known technologies, a climbing anti-flashover skirt 6 is further disposed on the sheath 2, the climbing anti-flashover skirt 6 is disposed between the adjacent large sheds 3 and the small sheds 4, the diameter of the climbing anti-, guarantee creepage distance, the lower surface border department of climbing anti-flash skirt 6 still is provided with the cross-section and prevents dodging ring 7 for hooked, 8 intervals of opening of anti-flash ring 7 are 1-2cm, the bottom of preventing dodging ring 7 still is provided with four at most and the external weeping holes 9 that are linked together, avoid the too much entering of external dust impurity to prevent dodging in ring 7 through weeping holes 9, weeping holes 9 are along preventing dodging ring 7's circumference evenly distributed, meanwhile, accessible weeping holes 9 such as the steam water droplet that gets into in preventing dodging ring 7 under weather such as sleet fog are discharged, avoid the steam water droplet to store up and destroy the anti-soil flashover performance of preventing dodging ring 7 in preventing dodging ring 7.

The material of plug 1 and sheath 2 is glass fiber reinforcement polyester resin and silicon rubber respectively, and the material of big full skirt 3, little full skirt 4, increase and climb anti-flashover skirt 6 and anti-flashover ring 7 is silicon rubber, and it is provided with a plurality of silicon rubber material bulge loop 10 still to an organic whole on the lower surface of anti-flashover skirt 6 to increase to climb, and the quantity of bulge loop 10 is three, and it has further increased and has climbed anti-flashover skirt 6 and the holistic creepage distance of suspension insulator.

The creepage-increasing anti-flashover skirt 6 and the flashover prevention ring 7 are respectively bonded and fixed on the sheath 2 and the creepage-increasing anti-flashover skirt 6.

The working principle of the embodiment is as follows:

the section shape of the anti-flashover ring 7 is hook-shaped, so that the amount of dust impurities entering the anti-flashover ring 7 is obviously lower than the amount of dust impurities attached to the outer surface of the insulator, the possibility that liquid level, dust impurity solution and the like form a continuous surface in the anti-flashover ring 7 is effectively reduced, the probability that the surface of the insulator forms a continuous conductive film is also effectively reduced, the anti-flashover performance of the insulator is greatly enhanced, and the safe operation of a power grid is favorably ensured.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. The utility model provides a compound suspension insulator of bar, includes plug, sheath and the big full skirt of equipartition on the sheath, still is provided with little full skirt on the sheath between the adjacent big full skirt, the both ends of plug have set firmly the gold utensil respectively, a serial communication port, still be provided with the increase on the sheath and climb the anti-flash skirt, the diameter that increases the anti-flash skirt is greater than the diameter of big full skirt still is provided with the cross-section on the lower surface border that increases the anti-flash skirt and is the hooked anti-flash ring, and the opening interval of anti-flash ring is 1-2cm, the bottom of anti-flash ring still is provided with four at most the small opening that is linked together with the external world.

2. The rod-shaped composite suspension insulator according to claim 1, wherein the creepage-increasing anti-flashover skirt is positioned between adjacent large and small sheds.

3. The rod-shaped composite suspension insulator according to claim 1, wherein the core rod and the sheath are made of glass fiber reinforced polyester resin and silicone rubber, respectively.

4. The rod-shaped composite suspension insulator according to claim 1, wherein a plurality of convex rings are integrally formed on the lower surface of the creepage-increasing and flashover-preventing skirt.

5. The rod-shaped composite suspension insulator according to claim 4, wherein the material of the convex ring is silicon rubber.

6. The rod-shaped composite suspension insulator according to claim 1, wherein the large shed, the small shed, the climbing-increasing anti-flashover shed and the anti-flashover ring are all made of silicon rubber.

7. The rod-shaped composite suspension insulator according to claim 1, wherein the creepage and flashover preventing skirt and the flashover preventing ring are respectively fixed on the sheath and the creepage and flashover preventing skirt in an adhering manner.

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