Multi-Pull-Rod Roman Umbrella

Abstract

The present disclosure provides a multi-pull-rod Roman umbrella, including a fixed rod, a diagonal rod, and at least two pull rods, wherein lower ends of the pull rods are all hinged in a middle of the diagonal rod, the Roman umbrella further includes a clamping seat with a U-shaped cross section formed by extending two side wings to the same side on the basis of a tubular member, upper ends of the pull rods are hinged to the clamping seat, and the fixed rod is clamped between the two side wings of the clamping seat, fits and abuts against an inner side of the clamping seat, and then is fixedly connected with the clamping seat through a fastener. This Roman umbrella has good windproof performance.

What is claimed is: 
     
         1 . A Roman umbrella, comprising a fixed rod ( 6 ), a diagonal rod ( 1 ), and at least two pull rods ( 2 ), wherein lower ends of the at least two pull rods ( 2 ) are all hinged in a middle of the diagonal rod ( 1 ), the Roman umbrella further comprises a clamping seat ( 3 ) with a U-shaped cross section formed by extending two side wings ( 35 ) to the same side on the basis of a tubular member, upper ends of the at least two pull rods ( 2 ) are hinged to the clamping seat ( 3 ), and the fixed rod ( 6 ) is clamped between the two side wings ( 35 ) of the clamping seat ( 3 ), fits and abuts against an inner side of the clamping seat ( 3 ), and then is fixedly connected with the clamping seat ( 3 ) through a fastener ( 4 ). 
     
     
         2 . The Roman umbrella as claimed in  claim 1 , wherein the inner side of the clamping seat ( 3 ) has a protruding planar abutment surface ( 31 ), the fixed rod ( 6 ) has a flat support wall ( 61 ), and the abutment surface ( 31 ) fits and abuts against the support wall ( 61 ). 
     
     
         3 . The Roman umbrella as claimed in  claim 2 , wherein the inner side of the clamping seat ( 3 ) has arc-shaped limiting surfaces ( 32 ) located on two sides of the abutment surface ( 31 ), the fixed rod ( 6 ) has limiting portions ( 62 ) disposed in a vertical direction and located on two sides of the support wall ( 61 ), the two limiting portions ( 62 ) are spaced apart, and outer side walls of the two limiting portions ( 62 ) fit and abut against the two limiting surfaces ( 32 ) in a one-to-one correspondence manner. 
     
     
         4 . The Roman umbrella as claimed in  claim 3 , wherein outer ends of the two limiting portions ( 62 ) are disposed close to each other. 
     
     
         5 . The Roman umbrella as claimed in  claim 2 , wherein the clamping seat ( 3 ) comprises a hollow tubular installation portion ( 33 ), the installation portion ( 33 ) internally has a plurality of plate-shaped reinforcing walls ( 34 ) parallel to each other, the upper ends of the at least two pull rods ( 2 ) are hinged to the installation portion ( 33 ), and the reinforcing walls ( 34 ) are all disposed parallel to the at least two pull rods ( 2 ). 
     
     
         6 . The Roman umbrella as claimed in  claim 5 , wherein a first needle roller bearing ( 5 ) is disposed between each of the at least two pull rods ( 2 ) and the installation portion ( 33 ). 
     
     
         7 . The Roman umbrella as claimed in  claim 6 , wherein a connecting sleeve ( 7 ) is clamped in the middle of the diagonal rod ( 1 ), the at least two pull rods ( 2 ) are provided, in a quantity of two, the two of the at least two pull rods ( 2 ) are respectively located on two sides of the connecting sleeve ( 7 ) and hinged to the diagonal rod ( 1 ) through another fastener ( 15 ), counter bores ( 71 ) are formed in two side walls of the connecting sleeve ( 7 ), each of the counter bores ( 71 ) is internally provided with a second needle roller bearing ( 52 ), as well as a first support gasket ( 51 ) and a second support gasket ( 53 ) which are located on two sides of the second needle roller bearing ( 52 ), and the first support gasket ( 51 ) in each of the counter bores ( 71 ) abuts against a side wall of corresponding one of the at least two pull rods ( 2 ). 
     
     
         8 . The Roman umbrella as claimed in  claim 7 , wherein the connecting sleeve ( 7 ) is in a U shape, and the connecting sleeve ( 7 ) is clamped upward in the middle of the diagonal rod ( 1 ). 
     
     
         9 . The Roman umbrella as claimed in  claim 7 , wherein a handle shell ( 8 ) is slidably connected to the fixed rod ( 6 ), a lower end of the diagonal rod ( 1 ) is hinged to the handle shell ( 8 ) through a hinge bolt ( 9 ) and a nut ( 91 ), installation counterbores ( 81 ) are formed in two side walls of the handle shell ( 8 ), each of the installation counterbores ( 81 ) is internally provided with a third needle roller bearing ( 54 ) and third support gaskets ( 55 ) located on two sides of the third needle roller bearing ( 54 ), and the each third needle roller bearing ( 54 ) and the corresponding third support gaskets ( 55 ) are compressed in corresponding one of the installation counterbores ( 81 ) through the hinge bolt ( 9 ) and the nut ( 91 ). 
     
     
         10 . The Roman umbrella as claimed in  claim 1 , wherein each of left and right sides of the fixed rod ( 6 ) is provided with the clamping seat ( 3 ), the diagonal rod ( 1 ), and the at least two pull rods ( 2 ). 
     
     
         11 . The Roman umbrella as claimed in  claim 1 , wherein an upper umbrella disc ( 101 ) is connected to an upper end of the diagonal rod ( 1 ), a connecting rod ( 103 ) is further connected to the middle of the diagonal rod ( 1 ), a lower umbrella disc ( 102 ) is connected to a lower end of the connecting rod ( 103 ), an upper end of the lower umbrella disc ( 102 ) has an insertion rod ( 1021 ), the insertion rod ( 1021 ) is in a rod shape with a polygonal cross section, an insertion sleeve ( 104 ) is fixed to a lower end of the upper umbrella disc ( 101 ), an inner hole of the insertion sleeve ( 104 ) is a polygonal hole that is matched with the insertion rod ( 1021 ), and the insertion rod ( 1021 ) is capable of being inserted into the inner hole of the insertion sleeve ( 104 ). 
     
     
         12 . The Roman umbrella as claimed in  claim 11 , wherein edges of the insertion rod ( 1021 ) are all disposed slantly outward from top to bottom. 
     
     
         13 . The Roman umbrella as claimed in  claim 11 , wherein an upper end of the insertion sleeve ( 104 ) has an annular limiting stop edge ( 1041 ), and an upper end of the insertion rod ( 1021 ) is capable of abutting against the limiting stop edge ( 1041 ). 
     
     
         14 . The Roman umbrella as claimed in  claim 11 , wherein a roughly H-shaped connecting seat ( 12 ) is connected between the diagonal rod ( 1 ) and the connecting rod ( 103 ), the connecting seat ( 12 ) comprises a connecting block ( 121 ), two upper connecting plates ( 122 ) formed by protruding upwards at an upper end of the connecting block ( 121 ), and two lower connecting plates ( 123 ) formed by protruding downwards at a lower end of the connecting block ( 121 ), the diagonal rod ( 1 ) is embedded between the two upper connecting plates ( 122 ) and fixedly connected with the upper connecting plates ( 122 ), and the connecting rod ( 103 ) is embedded between the two lower connecting plates ( 123 ) and hinged to the lower connecting plates ( 123 ). 
     
     
         15 . The Roman umbrella as claimed in  claim 14 , wherein a Y-shaped installation seat ( 11 ) is fixed to the upper end of the diagonal rod ( 1 ), the upper umbrella disc ( 101 ) has a downwardly-disposed connecting tube ( 1011 ), and the connecting tube ( 1011 ) is embedded between two fork arms ( 111 ) of the installation seat ( 11 ) and hinged to the fork arms ( 111 ).