A safety lamp socket comprising:
- a socket body having a transverse wire groove for mounting an electrical wire, two plug holes at two opposite sides by said transverse wire groove, two inside projecting blocks respectively disposed below said plug holes, a first middle through hole and a second middle through hole spaced in the middle of said transverse wire groove near one end, a third middle through hole and a fourth middle through hole bilaterally spaced in the middle of said transverse wire groove near an opposite end, said second middle through hole comprising a retaining groove on the inside;
- an electric wire mounted in said transverse wire groove;
- a socket cap fastened to said socket body to hold down said electrical wire, having a bottom pressure block pressed against said electrical wire, two downward plugs at two opposite sides respectively inserted into the plug holes of said socket body, and a curved clamping plate raised from the periphery, each downward plug having a step at an outer side engaged with one projecting block of said socket body and a threaded portion at an inner side for engaging a ring contact of a base of a lamp bulb, said curved clamping plate comprising a plurality of threaded portions, which face the periphery of said socket body, a keyhole-like slot for hanging on a wall nail, a second clamping portion defined on an inside thereof for fastening to a larger support surface, and a first clamping portion defined on an outside surface between said curved clamping plate and said socket body for fastening to tree twigs, a bigger tree branch, or a flat board;
- a center metal spring plate inserted into said second middle through hole, having a flanged transverse head at one end fastened to the retaining groove inside said second middle through hole and a springy tail at an opposite end disposed inside said socket body;
- a center metal contact plate inserted into said first middle through hole, having a pointed upright tip protruding over said transverse wire groove and piercing the insulator of said electrical wire to make electrical contact with one conductor thereof, a downward plug portion inserted into said first middle through hole and suspended over the springy tail of said center metal spring plate, and a horizontal stop portion stopped outside said first middle through hole;
- a side metal spring plate inserted into said fourth middle through hole, having an angled stop portion stopped outside said fourth middle through hole and a projecting strip obliquely upwardly raised from one side and suspending inside said socket body;
- and
- a side metal contact plate inserted into said third middle through hole, having a pointed upright tip protruding over said transverse wire groove and piercing the insulator of said electrical wire to make electrical contact with one conductor thereof, a downward plug portion inserted into said third middle through hole and facing the projecting strip of said side metal spring plate, and a horizontal stop portion stopped outside said third middle through hole;
- wherein when a lamp bulb is threaded into said socket body, the springy tail of said center metal spring plate and the projecting strip of said side metal spring plate are respectively forced by a tip contact and ring contact of the base of the lamp bulb into contact with the downward plug portions of said center metal contact plate sand said side metal contact plate;
- when the lamp bulb is removed from said socket body, the spring tail of said center metal spring plate and the projecting strip of said side metal spring plate automatically return to their former shapes and respectively disconnect from said center metal contact plate and said side metal contact plate.