A connector comprising a male connecting article and a female connecting article for connecting a male connecting article, wherein a connecting hole having a teeth-like configuration is disposed on the female connecting article, wherein the connecting hole having a teeth-like configuration comprises: a plurality of tooth portions spaced apart from each other and arranged radially about a center of the connecting hole at a predetermined angle; and the male connecting article comprising a connecting element formed with multiple circumferentially outwardly projecting portions corresponding in position to the plurality of tooth portions so as to allow the multiple circumferentially outwardly projecting portions to pass through the connecting hole, characterized in that the connecting element of the male connecting article has substantially a cylindrical shape, wherein the multiple circumferentially outwardly projecting portions are provided at one end thereof, wherein each of the multiple circumferentially outwardly projecting portions has a length larger than a length of each of the plurality of tooth portions, and the connecting element being deformable and depressible and having a diameter slightly larger than a diameter of the connecting hole of the female connecting article, such that the multiple projecting portions being placed in alignment with the corresponding tooth portions and the connecting element being squeezed to reduce a diameter thereof, so as to pass through the tooth portions and the connecting hole, wherein after the multiple projecting portions passed though the connecting hole, the connecting element is expanded to abut against the connecting hole such that an outer periphery of the connecting element is in frictional contact with an inner periphery of the connecting hole and the connecting hole is positioned between the multiple circumferentially outwardly projecting portions and the end of the male connecting article opposite to the connecting element, the female connecting article being rotatable about the connecting element. a plurality of tooth portions spaced apart from each other and arranged radially about a center of the connecting hole at a predetermined angle; and the male connecting article comprising a connecting element formed with multiple circumferentially outwardly projecting portions corresponding in position to the plurality of tooth portions so as to allow the multiple circumferentially outwardly projecting portions to pass through the connecting hole, characterized in that the connecting element of the male connecting article has substantially a cylindrical shape, wherein the multiple circumferentially outwardly projecting portions are provided at one end thereof, wherein each of the multiple circumferentially outwardly projecting portions has a length larger than a length of each of the plurality of tooth portions, and the connecting element being deformable and depressible and having a diameter slightly larger than a diameter of the connecting hole of the female connecting article, such that the multiple projecting portions being placed in alignment with the corresponding tooth portions and the connecting element being squeezed to reduce a diameter thereof, so as to pass through the tooth portions and the connecting hole, wherein after the multiple projecting portions passed though the connecting hole, the connecting element is expanded to abut against the connecting hole such that an outer periphery of the connecting element is in frictional contact with an inner periphery of the connecting hole and the connecting hole is positioned between the multiple circumferentially outwardly projecting portions and the end of the male connecting article opposite to the connecting element, the female connecting article being rotatable about the connecting element.