Double-layer cloth structure of sun umbrella

Abstract

A double-layer cloth structure of a sun umbrella comprising a long umbrella rib, a short umbrella rib, an upper umbrella disc, a lower umbrella disc, an outer umbrella surface and an inner umbrella surface; the outer umbrella surface is fixed to the outer side of the long umbrella rib, an edge of the inner umbrella surface is provided with a connecting member, the connecting member is detachably connected to an end portion of the long umbrella rib, a fixing ring is detachably connected to the lower umbrella disc, a mounting hole is formed in the center of the inner umbrella surface, and the middle portion of the inner umbrella surface where the mounting hole is located is fixed to the lower umbrella disc through the fixing ring.

What is claimed is: 
     
         1 . A double-layer cloth structure of a sun umbrella, comprising:
 a long umbrella rib,   a short umbrella rib,   an upper umbrella disc,   a lower umbrella disc,   an outer umbrella surface, and   an inner umbrella surface, wherein the outer umbrella surface is fixed to the outer side of the long umbrella rib, wherein an edge of the inner umbrella surface is provided with a connecting member, wherein the connecting member is detachably connected to an end portion of the long umbrella rib, wherein a fixing ring is detachably connected to the lower umbrella disc, wherein a mounting hole is formed in the center of the inner umbrella surface, and wherein a middle portion of the inner umbrella surface where the mounting hole is located is fixed to the lower umbrella disc through the fixing ring.   
     
     
         2 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein the connecting member further comprises a fixing hook, wherein an end portion of the long umbrella rib is provided with an umbrella bead, and wherein the fixing hook is coupled with the umbrella bead. 
     
     
         3 . The double-layer cloth structure of a sun umbrella of  claim 2 , wherein an end portion of the umbrella bead is provided with a groove extending in the axial direction, and the fixing hook is coupled with the groove. 
     
     
         4 . The double-layer cloth structure of a sun umbrella of  claim 2 , wherein an end portion of the umbrella bead is provided with a radially-extending hook hole, and the fixing hook is coupled with the hook hole. 
     
     
         5 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein an end portion of the long umbrella rib is provided with an umbrella bead, and the connecting member further comprises plastic buckles arranged on the umbrella bead and the inner umbrella surface. 
     
     
         6 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein an end portion of the long umbrella rib is provided with an umbrella bead, and the connecting member further comprises screws arranged on the umbrella bead and the inner umbrella surface. 
     
     
         7 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein a threaded post is arranged on the lower umbrella disc, the threaded post passes through the mounting hole, and the fixing ring is threadedly connected to the threaded post. 
     
     
         8 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein the position where the short umbrella rib and the long umbrella rib are connected is sewed to the inner umbrella surface. 
     
     
         9 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein an elastic clip is arranged above the inner umbrella surface, and the elastic clip is clipped on the long umbrella rib and/or the short umbrella rib. 
     
     
         10 . The double-layer cloth structure of a sun umbrella of  claim 1 , wherein a hook-and-loop fastener is arranged between the inner umbrella surface and the outer umbrella surface.