Collapsible window blinds structure

A collapsible window blinds structure, comprising a blind body, a lift cord set, and a head rail assembly wherein the blind body has a fastening portion disposed at the top edge thereon, and a plurality of limiting hoops evenly spaced and fixed in vertical lines at the rear side surface thereon;

• the lift cord set is composed of lift cords, pulley seats and a positioning pulley unit wherein the lift cords are guided through the limiting hoops of the blind body to wind around the pulley seats and the positioning pulley unit and fixed to the bottommost limiting hoops thereof respectively, and the top edges of the pulley seats and the positioning pulley unit are respectively disposed a protrusive fitting portion;
• the head rail assembly includes a plurality of connection rods and linking elements wherein each connection rod has a thru-hole disposed at the top plane surface cutting vertically downwards through to the bottom surface thereof, and the fitting portion of the pulley seat and the positioning pulley unit thereof can be reciprocally mounted to the thru-hole of the connection rod for location thereby;
• the connection rod also has a set of coupling holes disposed at both ends for the registration of the linking elements therewith respectively, and a fastened portion defining one vertical side surface thereon for the attachment of the fastening portion of the blind body thereto;
• therefore, via the collapsible design of the window blinds wherein the lift cord set guiding through the blind body is detachably mounted to the head rail assembly that can also be conveniently dismantled into separate pieces of the connection rods and linking elements, the head rail assembly and the blind body can be conveniently stacked and bundled up into smaller volume, facilitating the carriage and the storage the window blind thereof as well as saving the material of package to achieve the economical efficiency thereof.