Grade control apparatus for display set used in tapestry

Abstract

The invention discloses an angle adjusting device for wall mounted type display apparatus, including a fixing bracket fixed on the wall or a support structure, a device fastening frame, which is fixed on the back of the wall mounted display apparatus, the fixing bracket being pivotably connected to a lower end of the device fastening frame, an angle adjusting member having a predetermined rotation resistance with one end pivotably connected to the fixing bracket and the other end pivotably connected to the device fastening frame, and a balancing tension spring with one end connected to the fixing bracket and the other end connected to the device fastening frame. In use, a small force is applied directly to the wall mounted display apparatus or the angle adjusting device to precisely adjust the angle of the display apparatus according to users' needs without removing the display apparatus.

1 - 5 . (canceled) 
   
   
       6 . An angle adjusting device for a wall mounted type display apparatus, comprising:
 a fixing bracket to be fixed on a support structure;   a fastening frame to be connected to the wall mounted type display apparatus, an end of said fastening frame pivotably connected to said fixing bracket;   an angle adjusting member providing a rotation resistance and including a first end pivotably connected to said fixing bracket and a second end pivotably connected to said fastening frame; and   an balancing tension spring including a first end connected to said fixing bracket and a second end connected to said fastening frame.   
   
   
       7 . An angle adjusting device of  claim 6 , wherein said angle adjusting member further includes:
 a first arm;   a second arm; and   a hinge assembly providing a predetermined rotation resistance,   wherein a first end of said first arm is hinged with a first end of said second arm by said hinge assembly, a second end of said first arm is pivotably connected to said fastening frame, a second end of said second arm is pivotably connected to said fixing bracket.   
   
   
       8 . An angle adjusting device of  claim 7 , wherein said hinge assembly includes:
 a bolt;   at least one washer;   at least one elastic washer; and   a nut.   
   
   
       9 . An angle adjusting device of  claim 7 , wherein said angle adjusting member adjusts a magnitude of the rotation resistance and said balancing tension spring adjusts an elastic coefficient in accordance with a weight of the wall mounted type display apparatus. 
   
   
       10 . An angle adjusting device of  claim 6 , wherein said angle adjusting member adjusts a magnitude of the rotation resistance and said balancing tension spring adjusts an elastic coefficient in accordance with a weight of the wall mounted type display apparatus. 
   
   
       11 . An angle adjusting device of  claim 6  wherein said angle adjusting member includes multiple angle adjusting members, each including a first end pivotably connected to said fixing bracket and a second end pivotably connected to said fastening frame. 
   
   
       12 . An angle adjusting device of  claim 11  wherein said balancing tension spring is multiple balancing tension springs, each including a first end connected to said fixing bracket and a second end connected to said fastening frame. 
   
   
       13 . An angle adjusting device of  claim 6  wherein said balancing tension spring is multiple balancing tension springs, each including a first end connected to said fixing bracket and a second end connected to said fastening frame.