A washing and/or drying machine, comprising: a housing (C) having an access opening ; a rotating drum ; a tub (T) having a tub opening and enclosing the rotating drum ; a sleeve disposed between the access opening of the housing (C) and the tub opening of the tub (T); at least one clamping framework surrounding at least one end of the sleeve to fasten said sleeve to the housing (C) and/or to the tub (T); said at least one clamping framework comprising a first U-shaped frame and a second U-shaped frame and a first connecting device and a second connecting device , each of the first and second connecting device being configured to releasably connect the first frame to the second frame , each of the first and the second connecting device comprising a first part provided with a first toothed profile engaging a second part provided with a second toothed profile , wherein one end of the first U shaped frame comprises the first part of the first connecting device , the other end of the first U shaped frame comprises the second part of the second connecting device ; wherein one end of the second U shaped frame comprises a first part of the second connecting device , the other end of the second U shaped frame comprises the second part of the first connecting device ; wherein each first part comprises an elongated element provided with the first toothed profile and delimiting, together with the respective end of the first frame or of the second frame , a slot ; wherein each second part presents a seat placed at the respective end of the second frame or of the first frame and configured to accommodate the elongated element ; wherein the teeth of said first and second toothed profiles project substantially perpendicular to a surface (S) on which the clamping framework lies. a housing (C) having an access opening ; a rotating drum ; a tub (T) having a tub opening and enclosing the rotating drum ; a sleeve disposed between the access opening of the housing (C) and the tub opening of the tub (T); at least one clamping framework surrounding at least one end of the sleeve to fasten said sleeve to the housing (C) and/or to the tub (T); said at least one clamping framework comprising a first U-shaped frame and a second U-shaped frame and a first connecting device and a second connecting device , each of the first and second connecting device being configured to releasably connect the first frame to the second frame , each of the first and the second connecting device comprising a first part provided with a first toothed profile engaging a second part provided with a second toothed profile , wherein one end of the first U shaped frame comprises the first part of the first connecting device , the other end of the first U shaped frame comprises the second part of the second connecting device ; wherein one end of the second U shaped frame comprises a first part of the second connecting device , the other end of the second U shaped frame comprises the second part of the first connecting device ; wherein each first part comprises an elongated element provided with the first toothed profile and delimiting, together with the respective end of the first frame or of the second frame , a slot ; wherein each second part presents a seat placed at the respective end of the second frame or of the first frame and configured to accommodate the elongated element ; wherein the teeth of said first and second toothed profiles project substantially perpendicular to a surface (S) on which the clamping framework lies. <EOS>