Breathing mask

摘要

A breathing mask has a mask body, a mounting bracket and a universal connecting tube. The mask body has a first universal socket bracket having a first spherical recess. The mounting bracket is mounted on the mask body and has a second universal socket bracket having a second spherical recess. The universal connecting tube is mounted universally pivotally in the mask body and has a ball joint mounted universally rotatably in the first and second spherical recesses. The universally rotating ball joint allows a breathing tube connected to the universal connecting tube to pivot to any orientations and prevents the breathing tube from over bending.

主权项

1. A breathing mask comprising:
a mask body having
a frame having two side ends and a through hole defined through the frame; anda first universal socket bracket mounted securely in the through hole and having
a rear end;a mounting hole defined through the first universal socket bracket and having an inner surface; anda first spherical recess being annular and defined in the inner surface of the mounting hole; a mounting bracket mounted securely on the mask body and having
a second universal socket bracket being hollow and tubular and having
a rear end;a fastening hole defined through the second universal socket bracket and having an inner surface; anda second spherical recess being annular, defined in the inner surface of the second universal socket bracket and located adjacent to the first spherical recess; andan assembling member formed on and protruding backward from the second universal socket bracket; a universal connecting tube mounted universally pivotally in the mask body and the mounting bracket, protruding forward from the mask body and having
a front end;a rear end;anda ball joint formed on the rear end of the universal connecting tube, mounted universally rotatably in the first and second spherical recesses; and a connection bracket mounted on the assembling member of the mounting bracket opposite to the mask body.