Device for Supporting a Sun-Tracking Unit of a Photovoltaic Module

Abstract

An adjustable device for supporting a sun-tracking unit includes a framework and first and second supporting elements. The framework includes lower and upper portions. The lower portion of the framework includes two transverse long tubes and a longitudinal long tube for interconnecting the transverse long tubes. The upper portion of the framework includes two vertical tubes each extending from a related one of the transverse long tubes, two transverse short tubes each extending from a related one of the vertical tubes, and a longitudinal short tube for interconnecting the transverse short tubes. The first supporting element is connected to the transverse short tubes. The second supporting element is adjustably connected to the first supporting element.

What is claimed is: 
     
         1 . An adjustable device for supporting a sun-tracking unit of a photovoltaic module, the adjustable device comprising:
 a framework including:
 a lower portion including two transverse long tubes and a longitudinal long tube for interconnecting the transverse long tubes; and 
 an upper portion including two vertical tubes each extending from a respective one of the transverse long tubes, two transverse short tubes each extending from a respective one of the vertical tubes, and a longitudinal short tube for interconnecting the transverse short tubes; 
   a first supporting element connected to the transverse short tubes; and   a second supporting element adjustably connected to the first supporting element.   
     
     
         2 . The adjustable device according to  claim 1 , wherein the transverse long tubes, longitudinal long tube, transverse short tubes, longitudinal short tube, and vertical tubes are square tubes. 
     
     
         3 . The adjustable device according to  claim 1 , wherein the transverse short tubes and the longitudinal short tube form a U-shaped structure. 
     
     
         4 . The adjustable device according to  claim 1 , further comprisnig:
 screws inserted through the first and second supporting elements;   butterfly nuts each engaged with a respective one of the screws; and   springs each located around a respective one of the screws and   compressed between the first and second supporting elements.   
     
     
         5 . The adjustable device according to  claim 1 , wherein the first supporting element includes a T-shaped board, the T-shaped board including:
 a primary rectangular portion connected to the transverse short tubes; and   a secondary rectangular portion extending from the primary rectangular portion.   
     
     
         6 . The adjustable device according to  claim 5 , wherein the primary rectangular portion of the second supporting element includes apertures through which screws can be driven in the transverse short tubes. 
     
     
         7 . The adjustable device according to  claim 1 , wherein the second supporting element includes an annular configuration including margins extending from one another. 
     
     
         8 . The adjustable device according to  claim 7 , further comprising:
 screws inserted via the first and second supporting elements;   butterfly nuts each engaged with a relative one of the screws; and   springs each located around a related one of the screws and compressed between the first and second supporting elements.   
     
     
         9 . The adjustable device according to  claim 8 , wherein the second supporting element includes wings each extending from a related one of the margins and including a screw hole defined therein for receiving a related one of the screws. 
     
     
         10 . The adjustable device according to  claim 9 , wherein each of the wings includes an aperture defined therein for receiving a screw driven through the sun-tracking unit.