Dedicated protractor of cervical vertebra backbone patient spinal cord injury head of a bed

The utility model discloses a dedicated protractor of cervical vertebra backbone patient spinal cord injury head of a bed, including the first board of pulldown bed, magnetic base, operating parts, protractor base, framework, bevel protractor, fixed axle, movable sleeve seat, switch, warning casing, warning loudspeaker, battery, touch switch, fixed pin, plumb -line and plumb -line awl, the utility model discloses during the use, at first place the first board of pulldown bed with magnetic base above, then rotation operations spare makes magnetic base firmly adsorb on the first board of pulldown bed, when raise in the first board of pulldown bed left side, at first can make the magnetic base left side raise together, raise together in further messenger's bevel protractor left side because gravity can make the plumb -line be in vertical position always, thereby then watch the angle that the first board of the definite pulldown bed of scale mark was raised above plumb -line and the bevel protractor, if the angle