CN212392073U - Pin type rod-shaped porcelain insulator - Google Patents

Abstract

The utility model discloses a needle-type clavate porcelain insulator, which comprises a porcelain insulator body, an upper steel cap and a lower steel cap which are respectively and fixedly connected with the upper end head and the lower end head of the porcelain insulator body, wherein annular grooves are respectively arranged on the outer surfaces of the upper end head and the lower end head of the porcelain insulator body; the device is not only beneficial to threading operation, but also can prevent the pressing plate from falling and losing in the high-altitude construction operation, and improves the construction efficiency.

Description

Pin type rod-shaped porcelain insulator

Technical Field

The utility model relates to a porcelain insulator for electric power overhead line especially relates to a pin type clavate porcelain insulator.

Background

Along with the rapid development of electric power in China, the consumption of electric porcelain products is increasing day by day. The porcelain insulator is one of electric porcelain products, is a part for supporting and fixing a bus and a live conductor and enabling the live conductor or the conductor to have enough distance and insulation with the ground, and plays a role in supporting a lead and preventing current from flowing back to the ground in an overhead line. At present, the porcelain insulator is divided into a suspension insulator, a pin insulator and a column insulator according to different working modes of the porcelain insulator,

in practical application, the pin insulator not only needs to have high mechanical strength (mainly tensile strength and bending strength), but also needs to have high electrical insulation (impact withstand voltage, anti-pollution performance, breakdown voltage and the like), and the pin rod-shaped porcelain insulator has the following defects: firstly, the cement adhesive connection strength of the upper steel cap and the lower steel cap is not high enough, and particularly, the upper steel cap is pulled by wind power greatly, and the cement adhesive connection torsional strength is not high, so that the steel cap and the porcelain body rotate slightly relatively, and the operation safety of a power transmission line is influenced; and secondly, the pressing plate for threading and fixing the upper steel cap is separated from the upper steel cap, so that the pressing plate is easy to fall and lose in high-altitude construction, and the electric power construction progress is influenced.

SUMMERY OF THE UTILITY MODEL

To the problem that needle type clavate porcelain insulator exists among the above-mentioned prior art, the utility model provides a mechanical strength is higher, and the clamp plate can not drop and the needle type clavate porcelain insulator who loses.

The to-be-solved technical problem of the utility model is that: the utility model provides a needle type clavate porcelain insulator includes porcelain insulator body and upper and lower both ends head fixed upper and lower steel cap that links to each other respectively with porcelain insulator body, all be equipped with annular groove on porcelain insulator body upper end and the lower end head surface, be provided with down the adhesive down between lower steel cap and the porcelain insulator body lower extreme, the interval is provided with the slotted hole on the terminal surface in the upper steel cap, be provided with the adhesive between upper steel cap and the porcelain insulator body lower end, upper steel cap upper end sets up the flange body, has the through wires hole in the middle of the flange body, and flange body one end has the opening, fixedly is equipped with the elastic backing plate on the other end plane, be provided with the clamp plate on the flange body relatively, clamp plate one end has the lug that can the activity pass the opening and link to each other with flange body activity with the round pin axle, the clamp plate other end is fixed continuous with elastic backing plate.

The porcelain insulator has the advantages that firstly, the porcelain insulator is provided with the annular grooves on the two end heads of the insulator body, particularly, the slotted holes are also formed in the inner end face of the upper steel cap, and after the adhesive is filled, the anti-torsion connection strength of the steel cap and the porcelain insulator body can be improved, so that the safe operation of a circuit is facilitated; and secondly, the pressing plate for threading and the upper steel cap are connected into a whole, so that the threading operation is facilitated, the pressing plate can be prevented from falling and losing in the high-altitude construction operation, and the construction efficiency is improved.

Drawings

Figure 1 is a main sectional structure diagram of the utility model,

figure 2 is a schematic cross-sectional view a-a of figure 1,

fig. 3 is a schematic sectional structure view of B-B of fig. 1.

In the figure, the insulator comprises an elastic backing plate 1, a screw rod 3, a slotted hole 4, a threading hole 5, a toothed groove 6, a pressing plate 7, an opening 8, a flange body 9, a pin shaft 10, a lug 11, an upper adhesive 12, an upper steel cap 13, an annular groove 14, a porcelain insulator body 15, a lower adhesive 16 and a lower steel cap.

Detailed Description

In fig. 1, 2 and 3, a needle-type rod-shaped porcelain insulator comprises a porcelain insulator body 14, and an upper steel cap 12 and a lower steel cap 16 which are fixedly connected with the upper end and the lower end of the porcelain insulator body respectively, wherein annular grooves 13 are formed in the outer surfaces of the upper end and the lower end of the porcelain insulator body, the cross sections of the annular grooves are arc-shaped, a lower adhesive 15 (cement adhesive) is arranged between the lower steel cap and the lower end of the porcelain insulator body, slotted holes 3 are formed in the inner end surface of the upper steel cap at intervals, an upper adhesive 11 is arranged between the upper steel cap and the lower end of the porcelain insulator body, a flat rectangular flange body 8 is integrally arranged at the upper end of the upper steel cap, a threading hole 4 is formed in the middle of the flange body, fine tooth grooves 5 are staggered on a round curved surface where the threading hole contacts with an electric wire, and can increase the friction between the electric wire and, the anti-aging flange comprises a flange body, wherein one end of the flange body is provided with an opening 7, the other end of the flange body is fixedly provided with an anti-aging elastic base plate 1 (such as a rubber plate, a fiber resin plate and the like) through glue or screws, the electric wires with different diameters can be clamped tightly through the elastic base plate, the flange is relatively provided with a pressing plate 6 corresponding to the shape of the flange body, one end of the pressing plate is provided with a lug 10 which can movably penetrate through the opening and is movably connected with the flange body through a pin shaft 9, two ends of the pin shaft are fixed on a flange flower body, and the other end of the pressing plate is fixedly connected with the elastic base plate and the flange body through a screw.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the specific embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (2)

1. The utility model provides a needle type clavate porcelain insulator, it includes porcelain insulator body (14) and with porcelain insulator body about both ends head respectively fixed upper steel cap (12) and lower steel cap (16) that link to each other characterized by: all be equipped with annular groove (13) on porcelain insulator body upper end and the lower end surface, be provided with down adhesive (15) down between steel cap and the porcelain insulator body lower extreme, the interval is provided with slotted hole (3) on the interior terminal surface of last steel cap, it is provided with adhesive (11) to go up between steel cap and the porcelain insulator body lower end, it sets up flange body (8) to go up steel cap upper end, has through wires hole (4) in the middle of the flange body, and flange body one end has opening (7), fixes being equipped with elastic backing plate (1) on the other end plane, be provided with clamp plate (6) on the flange body relatively, clamp plate one end has can the activity and passes opening and with lug (10) that round pin axle (9) and flange body activity link to each other, the clamp plate other end links to each other with elastic backing plate and flange body are fixed.

2. The needle-type rod porcelain insulator according to claim 1, wherein: tiny tooth sockets (5) are arranged on the circular curved surface of the threading hole, which is in contact with the electric wire, in a staggered manner.

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