Abstract: A positioning mechanism of a foldable plug is provided. The positioning mechanism includes a plug having a rod and two pins, the rod having a first recess and a second recess, a positioning device formed by injection molding and having a projecting resilience and a first connecting device, a second connecting device for coupling with the first connecting device and supporting the plug, and a third connecting device for coupling with the second connecting device, wherein when the projecting resilience is inserted into the first recess of the plug, the plug is secured to be held in a first position, and when the projecting resilience is inserted into the second recess of the plug, the plug is secured to be held in a second position.

Abstract: A hot swap fan tray with fan guard is disclosed. The present invention includes a frame, at least one fan and at least one fan guard. The frame includes a plurality of first holes. The fan includes a plurality of second holes. The fan guard further includes a plane and at least one protrusive terminal. The protrusive terminal projects from the plane and includes at least one bend. During the protrusive terminal passes through the first hole and the second hole, the bend changes shape and then returns original shape elastically, thereby the bend attaching said fan and said fan guard to said frame.

Abstract: The present invention discloses a fan tray having hot swap fan. The fan tray includes a tray and at least one fan. Among these, the tray includes at least one alignment post, at least one resilient fastener and one end of the connector. The fan includes an alignment hole and another end of the connector. After the alignment post slides into the alignment hole, the resilient fastener fastens the fan. Meanwhile, the end of the connector electrical contacts another end of the connector.

Abstract: An automobile steering lock comprising an elongated tubular member having a central passage extending along an axis there-through, an elongated rod member telescopically movable in the central passage of the tubular member, a hook on the tubular member and a hook or the rod member for engaging opposed portions of a steering wheel, a lock housing for containing a key lock having a bearing to prop up a latch bolt having at least two humps for engaging any two adjacent annular grooves on the rod member to immovably lock the rod member in relation to the tubular member.