Structure of Christmas lamp holder

An improved structure of a Christmas lamp holder, comprising:

• a lamp cover comprising a first hook, a second hook, a pressing block located between said first hook and said second hook, and a clip provided on one side thereof, said pressing block providing a first groove and a second groove for correspondingly pressing an electrical wire;
• a lamp holder body comprising a wiring slot for installing said electrical wire, a first retaining slot and a second retaining slot for the insertion of said first hook and said second hook of said lamp cover respectively, so that a hook portion of said first hook and a hook portion of said second hook are respectively locked on a first wall surface adjacent to an inner end of said first retaining slot and a second wall adjacent to an inner end of said second retaining slot, and said lamp cover and said lamp holder body are engaged and fixed through said first retaining slot and said second retaining slot, said first hook and said second hook, said lamp holder body further comprising a first positioning groove and a second positioning groove for respectively installing a positive conductive sheet and a negative conductive sheet for enabling a tip of said positive conductive sheet and a tip of said negative conductive sheet to be respectively located in said wiring slot, said lamp holder body being internally provided with internal threads;
• thereby, after said electrical wire is installed into said wiring slot of said lamp holder body, said lamp cover is engaged and fixed with said first retaining slot and said second retaining slot of said lamp holder body through said first hook and said second hook, and said electrical wire is pressed by said first groove and said second groove of said pressing block of said lamp cover, so that the said tip of said positive conductive sheet is inserted into an outer insulation layer of said electrical wire and then contacts a first core wire of said electrical wire, and the said tip of said negative conductive sheet is inserted into said outer insulation layer of said electrical wire and then contacts a second core wire of said electrical wire;
• wherein:
• said first groove and said second groove of said pressing block of said lamp cover are respectively provided with at least one first pressing protrusion and at least one second pressing protrusion for pressing the outer insulation layer of said electrical wire to achieve more stable pressing fixation and better tensile effect.