Improvement structure of outer box member of air injector

摘要

The present invention discloses an improved structure of the air injector exterior box member. The air injector is housed and placed in an outer box member assembled from the first box member and the second box member. When the first box member and the second box member are to be combined with each other, the positioning pin of the second box member is removed. 1 Through and through the through hole of the box member, the outer end head of the positioning pin enters the inclined horn-shaped wall at the end of the hollow circular column of the first box member, and engages the stepped portion of the inclined horn-shaped wall end. When attempting to separate the first box member and the second box member combined with each other, the rod member for removal is allowed to enter the through hole through the first box member, and is pushed into contact with the positioning pin of the second box member to position it. The outer end head of the pin slides to disengage from the stepped portion of the inclined horn-shaped wall end, and the outer end head of the positioning pin is pushed by the removal rod member to further enter the inclined horn-shaped wall, thereby eventually combining with each other. The first box member and the second box member can be separated immediately.