65results about How to "Connection will not affect" patented technology

The utility model relates to a mobile phone pendant anti -looseness device has installation base, connecting portion and top plate, is equipped with connecting screw hole on installation base, connecting portion includes screw rod portion and connecting plate, and the top of connecting portion is equipped with the mounting hole coaxial with screw rod portion, is equipped with compression spring in mounting hole, and the top of compression spring is fixedly equipped with ball, and ball lifting sliding sets up in mounting hole, is equipped with hanging groove on the lateral wall of top plate, still is equipped with connecting through groove on top plate, and the bottom of connecting through groove is pressed in through the continuous force of compression spring of the upper end of ball, is equipped with a plurality of limit sliding slots on the upper end surface of connecting plate, and the bottom of connecting through groove is equipped with limit sliding block, and the inner wall of connecting through groove is equipped with a plurality of anti -drop piece, and the limit sliding block is pressed into corresponding limit sliding slot through depressing after top plate connects with pendant and hanging groove, and through the thread cooperation of screw rod portion and connecting screw hole, the pendant is pressed tightly on installation base. The utility model is ingenious, convenient and practical.