Linear suspension projector lamp assembly

The present invention of linear suspension projector lamp assembly comprises:

• an upper rack, with an extension rod running through a hollow for electrical connection with a power source, for downward extension of the power source wire in electrical connection, a lock shaft rod installed at an extension rod having a winding space for winding the cord;
• at least a cord, winding on the winding space on the upper rack, having a first cord end and a second cord end that extend downward for winding and fastening of a pulling end;
• a lower rack, having an electrical box for assembly of optionally styles and types of projector lamp assembly, on two sides of an arm rod extended from the electrical box being respectively tying holes for fastening and tying the second cord end of the cord, the projector lamp assembly being directly in electrical connection with the power source wire to supply required power;
• a counterweight unit, consisting of two cylinders in combination with an insulation unit, installed between the upper and lower acks, the cylinders respectively having tying holes for tying the first cord end of the cord, and for insertion and assembly of the second cord end through the through hole in the cord control chamber, and in the cylinders being a work space that is assembled by a flexibility chamber and a cord control chamber that are partitioned by a partition but communicating with each other to assemble, to install the locator, on an end face of the insulation unit being at least a wire placement hole for insertion and assembly of the power cord wire;
• at least one set of locator, the press member that is movable in the cord control chamber has an extension of a lock assembly nozzle with an inside thread, running axially on the end face of the lock assembly nozzle being a cord pulling hole for insertion and assembly by the second cord end of the cord;
• a press key, having one end with a formation of a press shaft wall, forming a pressing space with a side face of the insulation unit, having a flexibility member that is regularly pressing on the press key, the press key having a connecting key extending from an end face of the press shaft wall, and in regular condition running through the channel on the partition, at an end of the connecting key being a thread, inside the cord control chamber to correspond to the press member for tightening purpose with the lock assembly nozzle;
• by direct electrical connection between the power source and the projector lamp assembly, it is applicable to a projector lamp assembly with non-low voltage specifications, the locator can be operated single-handedly to fasten or loosen the cord, meanwhile driving the counterweight unit to move up and down, and synchronously the cord pulling and driving the projector lamp assembly to move to a height in a reverse direction to the counterweight unit, to adjust a lighting height position and obtain better positioning and stabilizing effects, in combination with a larger or a heavier projector lamp assembly, meanwhile by assembling various types and styles of racks and counterweight, in combination with or in replacement of various types of lighting fixtures and lighting accessories, to compose various types of linear suspension projector lamps for consumer's optional purchase.