A bridging insulation test fixture pile

The present invention relates to a bridge pile insulation test fixture, comprising a frame, a test copper plate, the cover plate, the lower plate; said bracket includes an upper cover plate and the lower plate fixing bracket fixed to the bracket, the bracket is also mounted on the shield; the upper cover plate is provided with screw holes and a needle spring test test pin, said cover plate moved up and down in the upper end of a drive cylinder drive mounted on the cover plate; a lower end of the lower plate fixing bracket mounted on the lower base plate by a spring on the upper end, the lower mounting base plate along the longitudinal direction of the copper plate has a test, the test a total of two copper plates, plastic tank test are copper and copper test pins, evenly apart in the plastic body copper test several chip positioning holes screw hole corresponding to the test pin. Advantage of the present invention is: through the upper lid down, after the needle pin contact spring to be tested the test stack bridge, to test the insulation performance, pressure resistance.