The invention discloses a replacement device for a switching-closing spring of a
circuit breaker. The replacement device comprises a screw rod, a nut matched with the screw rod, a
handle, a cross beam, spring clamping arms, a limiting block, connecting blocks and connecting rods. The nut is fixed to the center of the cross beam, the two ends of the cross beam are hinged to the upper ends of the connecting blocks respectively, the spring clamping arms are symmetrically fixed to the two sides of the lower ends of the connecting blocks, the
handle is fixed to the upper end of the screw rod, the limiting block is fixed to the lower end of the screw rod, the spring clamping arms are hinged to the ends of the corresponding connecting rods respectively, and the other end of each connecting rod is hinged to the limiting block. According to the replacement device, the switching-closing spring of the
circuit breaker is fixed by the two pairs of spring clamping arms, compared with a traditional hook
type replacement device for the switching-closing spring of the
circuit breaker and a double-clamp
type replacement device for the switching-closing spring of the circuit breaker, operation is
safer and more reliable; an integrated structural design is adopted, so that the structure is reasonable, and use is convenient; due to the fact that the limiting block is arranged at the lower end of the screw rod, it can be avoided that the screw rod is rotated too much.