A socket base comprising a support ring having a support ring frame and a base plate having a base bottom , wherein the support ring comprises latching pins which each have a latching pin end as well as at least one first and/or second latching resistance , wherein the base plate comprises guide receptacles for said latching pins , wherein the guide receptacles each have at least one first and/or at least one second latching recess for the first and/or second latching resistance , in particular at least first and second latching recesses for the first and second latching resistance , wherein the distance between the support ring frame and the base bottom can be adjusted with said latching pins , characterized in that the guide receptacles each have a first receptacle side and an opposite second receptacle side , wherein the at least one first latching recess , in particular two first latching recesses, is/are present in the first receptacle side and the at least one second latching recess , in particular two second latching recesses, is/are present in the second receptacle side , wherein the at least one first latching resistance , in particular all of the first latching resistances, is/are inclined in the direction of the corresponding first receptacle side and the at least one second latching resistance , in particular all of the second latching resistances, is/are inclined in the direction of the corresponding second receptacle side , and wherein the socket base is adapted and arranged to be moved from a first state into a second state, wherein the support ring frame has, in the first state, a first adjusting distance (J1) from the base bottom and, in the second state, a second adjusting distance from the base bottom , wherein the second adjusting distance is larger or smaller than the first adjusting distance. wherein the support ring comprises latching pins which each have a latching pin end as well as at least one first and/or second latching resistance , wherein the base plate comprises guide receptacles for said latching pins , wherein the guide receptacles each have at least one first and/or at least one second latching recess for the first and/or second latching resistance , in particular at least first and second latching recesses for the first and second latching resistance , wherein the distance between the support ring frame and the base bottom can be adjusted with said latching pins , characterized in that the guide receptacles each have a first receptacle side and an opposite second receptacle side , wherein the at least one first latching recess , in particular two first latching recesses, is/are present in the first receptacle side and the at least one second latching recess , in particular two second latching recesses, is/are present in the second receptacle side , wherein the at least one first latching resistance , in particular all of the first latching resistances, is/are inclined in the direction of the corresponding first receptacle side and the at least one second latching resistance , in particular all of the second latching resistances, is/are inclined in the direction of the corresponding second receptacle side , and wherein the socket base is adapted and arranged to be moved from a first state into a second state, wherein the support ring frame has, in the first state, a first adjusting distance (J1) from the base bottom and, in the second state, a second adjusting distance from the base bottom , wherein the second adjusting distance is larger or smaller than the first adjusting distance. <EOS>