Sealed lock for electric metering meter box

The invention relates to a sealed lock for an electric metering meter box. The sealed lock comprises a lock body, and is characterized in that a short lock hole, a long lock hole and an U-shaped lock beam are arranged at the upper end of the lock body; a hole sealing device is arranged in a key hole at the middle part of the lower end of the lock body; the short lock hole includes a sealing hole, a slide hole, a rectangular insertion hole, a sealing ring, a clamping ring, an extension rod, a sealing plug and a compression spring; the long lock hole is provided with an annular groove and a first limiting groove; the U-shaped lock beam is provided with a second limiting groove and a torsional spring; and the hole sealing device includes a lower groove, a water absorbing pad, a dust removing pad and a sealing plate. The sealed lock achieves substantial advancement on the sealing waterproof effect, effectively prevents rainwater from top to bottom, can prevent water in all directions, and achieves the dustproof e