Hermetic pressure-type trunk injector

This invention relates to a hermetic pressure-type trunk injector, and more particularly, to the above hermetic pressure-type trunk injector comprising a liquid medicine tank (100), which is provided with a compression tank insertion portion (130) that is formed with a pair of engaging grooves in a manner of spacing from a specific interval and positioned between an outer wall (110) and an inner wall (120), an injection obstruction membrane (150) arranged between the above liquid medicine tank (100) and an injection pipe (140) integrally formed at the front end of the above liquid medicine tank (100), and an opening portion formed at a back surface of the above liquid medicine tank (100); a liquid medicine tank sealing cover (200), which has a pecker guide pipe (210) with its front end blocked by a guide pipe obstruction membrane (211) and extending towards the injection obstruction membrane (150), and the above liquid medicine tank sealing cover (200) is joined with the edge of the opening portion at the bac