Prevent hanging connection shell fragment

The utility model discloses a prevent hanging connection shell fragment, including installation department, edge the front end of installation department is upwards backward buckled and is extended invayination, the edge that forms invayination terminal extend form with the relative elastic arm in installation department position, formed at contact site on the elastic arm, edge upwards buckle respectively and extend two fender wall and the edges that form in the left and right sides of installation department the end of elastic arm to the support arm that forms is extended to the installation department direction, the support arm stretches into two between the fender wall and its left and right sides is established to the evagination respectively and is formed the two block wings, two keep off the wall two be formed with corresponding back stop part above the block wing, so that the block wing is in with the back stop part contradict when the elastic arm upwards stimulates and connect. Prevent hanging connection shell fragment can prevent that the elastic arm from being drawn and hang that the structure is firm.