CN2241378Y - Composite glass fibre reinforced plastic rod pillar insulator device - Google Patents

Abstract

The utility model relates to a composite glass fibre reinforced plastic insulator cross arm device applied to power transmission, which is formed by the fitting of a porcelain insulator and a cross arm, wherein, the porcelain insulator is made by adopting the glass fibre reinforced plastic; the lower end surface of the porcelain insulator is an arc surface; the end with a steel crown of an iron rod is fixedly inserted into the porcelain insulator vertically and the end with screw thread is exposed outside the lower part of the porcelain insulator; the cross arm is made into angle steel in shape also by adopting the glass fibre reinforced plastic; the upper end surface of one side of the angle steel is an arc surface which is provided with a through hole on the upper end. The device is arranged on the distribution wires, capable of not only maintaining high insulation to reduce accidents but also enhancing the horizontal bending strength of the cross arm and the mechanical strength of the porcelain insulator to reduce the torsion exerted by conducting wires to the cross arm.

Description

A kind of composite glass fiber reinforced cross-arm device

The utility model relates to a kind of electric device that electric power is carried that is applied to.

At present, the porcelain vase and the cross-arm of widespread usage complete use on distribution line, the edge effect of drawing last breath that electrifies of the porcelain vase of porcelain, the steel cross-arm then is used for supporting each phase conductor, but the dielectric strength of ceramic material is limited, when various overvoltage appears in system, be easy to breakdown and cause destructive accident to take place.According to statistics, be in operation this type of accident rate up to 50%.

The purpose of this utility model is to provide a kind of compound fiberglass cross-arm device, and its structure and material all help overcoming above-mentioned drawback.

The utility model is cooperatively interacted by porcelain vase 1 and cross-arm 2 and forms, wherein: the bottle 3 of porcelain vase 1 selects for use glass-reinforced plastic material to make, shape is similar to porcelain porcelain vase body, but undersized, its lower surface 4 is last convex arc surface, one end of iron 5 band steel toes vertically inserts in the bottle 3 admittedly, and a threaded end then exposes in the bottom of bottle 3; Cross-arm 2 also selects for use fiberglass to make, be the angle steel shape, the upper surface 6 on an angle steel limit that contacts with porcelain vase lower surface 4 also is to go up convex arc surface, and identical with the radian size of porcelain vase lower surface 4, the upper end of cross-arm 2 is provided with several through holes 7, and internal diameter is identical with the external diameter of iron 5.

The utility model has made full use of good electric insulating quality and the high-intensity mechanical performance of glass-reinforced plastic material, again the cross-arm structure is transformed, this device is installed on the distribution line, can not only keep high-insulation, the generation of minimizing accident, and can improve the horizontal bending strength of cross-arm and the mechanical strength of porcelain vase, reduce the torsion of lead to cross-arm.

Describe in detail below in conjunction with accompanying drawing:

Fig. 1 is a front view of the present utility model

Fig. 2 is an end view of the present utility model

Fig. 3 is the structural representation of porcelain vase in the utility model

Fig. 4 is the structural representation of cross-arm in the utility model

Among the figure, 1 porcelain vase, 2 cross-arms, 3 bottles, 4 lower surfaces, 5 irons, 6 upper surfaces, 7 through holes.

The manufacture method of porcelain vase is: with an end of special iron band steel toe, reservation shape and the sticking glass wool cloth that has been coated with a certain amount of glue have been cut on the spooling, after reaching design size, be placed in the particular manufacturing craft, heat and be pressed into shape just, take out and be contained in centrifugal rotation on the centrifuge, the outer surface at the porcelain vase body in the time of rotation applies the unsaturated polyester resin that one deck contains fire retardant, hydrophober, and constantly rotation reaches desirable requirement up to porcelain vase external surface roughness.

The manufacture method of cross-arm is: will be cut into a certain amount of glass wool cloth of reservation shape, sticking coat unsaturated polyester resin, reach the gel content of design after, put into prefabricated mould, the compression moulding of heating, the actual requirement according to transmission line gets out several through holes again, is finished product after the finishing.

During installation, the threaded end of porcelain vase iron passes the through hole of cross-arm, and bottle lower surface and cross-arm upper surface coincide, and utilize the nut screwing clamping screw thread, and porcelain vase and cross-arm are cooperated firmly.

Claims (2)

1. composite glass fiber reinforced cross-arm device, cooperatively interact by porcelain vase (1) and cross-arm (2) and to form, it is characterized in that: the lower surface (4) of the bottle (3) of porcelain vase (1) is arc surface, one end of iron (5) band steel toe vertically inserts in the bottle (3) admittedly, and a threaded end exposes the bottom in bottle (3); Cross-arm (2) is the angle steel shape, and the upper surface on an angle steel limit (6) are arc surfaces, and the upper end is provided with the internal diameter through hole (7) identical with iron (5) external diameter.

2. composite glass fiber reinforced cross-arm device according to claim 1 is characterized in that: porcelain vase body (3) lower surface (4) is epirelief and radian arc surface of the same size with cross-arm (2) upper surface (6).

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