Socket shutter

The utility model discloses a socket shutter, including a dipolar shutter, a tripolar shutter, a reset spring and a pedestal, dipolar shutter and tripolar shutter set up in the installation space that the pedestal formed, and reset spring presses to establish and is fixed in between dipolar shutter and the tripolar shutter, and dipolar shutter both sides form and dipolar jack hole site complex two drive surface, tripolar shutter both sides form and the 2nd drive surface of tripolar jack hole site complex two, dipolar shutter and tripolar shutter hide dipolar jack and tripolar jack respectively, and the dipolar shutter that only corresponds when two the 1st drive surface or the 2nd drive surface receive to the pressure of dipolar jack orientation simultaneously or tripolar shutter can self -corresponding dipolar jack or tripolar jack top region shift out. Owing to adopted the utility model discloses a socket shutter can prevent effectively that the monopole of socket from inserting, is applicable to combinatio