Movable spring and relay

The utility model discloses a movable spring member, comprising an elastic sheet structure which comprises a first reed and a second reed arranged on the first reed, and a free end of the first reed is used for installing a movable contact; and the connecting piece structure is provided with a deformation adjusting groove, the connecting piece structure is arranged at the free end of the first reed, and the second reed is stressed to deform towards the interior of the deformation adjusting groove after the movable contact and the static contact are closed until the second reed abuts against the groove bottom of the deformation adjusting groove so as to cooperate with the first reed to enhance the contact pressure between the movable contact and the static contact. Meanwhile, the utility model further discloses a relay using the movable spring piece, and on the premise that the contact pressure between the movable contact and the static contact is guaranteed to reduce the contact resistance between the movable