Patent ID: 8220084

Claim:
A shower head securing device comprising a shower head, a casing and a securing device, the securing device comprising a base, a joint tube, a securing nut, a shaft, a plurality of elastic pieces, a plurality of engaging pieces, a securing member and an adjusting screw; the securing device characterized in that: the casing has a first aperture and a corresponding cover at a side, a sealed end of the joint tube having a protruding end, and a toothed securing end formed at a center position of the protruding end; the securing nut having at least a thread at its outer circumference and a second aperture larger than the diameter of the shaft through its center position; the shaft having a plurality of engaging slots evenly placed along its outer circumference from one end to another end and parallel along its axial direction to form a protruding strip between each engaging slot; each elastic piece having at least two bevels on a front surface and a toothed aperture through a center portion; side ends on the surfaces of each engaging piece corresponding to the bevels of the elastic pieces, the outer circumference of each engaging piece having a plurality of evenly spaced engaging protrusions, and a fourth aperture with a diameter larger than an outer diameter of shaft 34 that is disposed through a center portion of the engaging piece; the securing member having an engaging aperture corresponding to each engaging piece, and at least an inner thread with a predetermined length at each opening of the engaging aperture; the adjusting screw having a thread around an outer circumferential edge, an adjusting aperture disposed on a side surface, a fifth aperture disposed on another side surface and the diameter of the fifth aperture being larger than the outer diameter of the shaft; wherein the engaging pieces sandwich each of two elastic pieces with both front surfaces facing each other, the shaft placed through the fourth apertures of the elastic pieces and the toothed apertures of the engaging pieces and such that the toothed apertures of the elastic pieces are engaged with the engaging slots and the protruding strips of the shaft; wherein when the shaft is placed into the securing member, the engaging protrusions of the engaging pieces are engaged with the engaging aperture of the securing member; the securing nut and the adjusting screw are screwed onto the inner thread disposed at the two opening edges of the engaging aperture of the securing member such that the adjusting screw admits the shaft in to the fifth aperture and pushes against all of the engaging pieces together to deform the elastic pieces to generate tightness applied onto the shaft; and wherein one end of the shaft protrudes out from the second aperture of the securing nut, the joint tube is pivoted onto the base, the securing member is jacketed into the joint tube to cause the shaft to insert into the toothed securing end, and when the casing is attached, the shower head is capable of being connected to a ball joint.