Rotating shaft structure for a supporting frame

Abstract

A rotating shaft structure for a supporting frame is used for supporting a thin computer or a plate screen. The rotating shaft structure includes a carrying base, a supporting arm, and a connecting base. The carrying base is fastened on a wall or a column. Bearings are placed into the first sleeve and the second sleeve located at the two opposite sides of the supporting arm. The carrying base is steadily pivoted with the supporting arm via the first locking assembly. The connecting base is steadily pivoted with the supporting arm via the second locking assembly. Because the bearings are placed in the first sleeve and the second sleeve, the first locking assembly and the second locking assembly are merely used as a locking element, and the bearing fully supports the rotating shaft when the supporting arm rotates. The connecting base is used for connecting with a thin electronic device.

What is claimed is: 
     
         1 . A rotating shaft structure for a supporting frame, used for supporting a thin computer or a plate screen, comprising:
 a carrying base having a base board, an upper fixing base, and a lower fixing base, wherein, there is a through hole on the upper fixing base and a pivoting hole on the lower fixing base;   a supporting arm having an arm, a first sleeve and a second sleeve located at the two opposite sides of the arm, a bearing, and a first locking assembly, wherein there is a rotating shaft hole in the first sleeve and the second sleeve, and there is a receiving space having a larger inner diameter and a shoulder part at two ends of the rotating shaft hole, wherein the bearing is placed into the receiving space, the first locking assembly is composed of a pivoting shaft, a resisting ring, and a locking element, the first sleeve embedded in the bearing is located between the upper fixing base and the lower fixing base, the resisting ring is located at the through hole, wherein the pivoting shaft is plugged into the resisting ring, the bearing, the rotating shaft hole and the pivoting hole, and is locked with the locking element to make the carrying base be steadily pivoted with the supporting arm; and   a connecting base pivoted with the supporting arm, and having a carrying board, two connecting flakes that are parallel to each other and a second locking assembly, wherein there are pivoting holes on the two connecting flakes, and the second locking assembly is composed of a pivoting shaft, and a locking element, wherein the second sleeve embedded with the bearing is placed between the two connecting flakes located at one side of the connecting base, and the pivoting shaft is plugged into the pivoting hole, bearing and the rotating shaft hole, and is locked with the locking element to make the supporting arm be steadily pivoted with the connecting base.   
     
     
         2 . The rotating shaft structure for a supporting frame as claimed in  claim 1 , wherein the base board of the carrying base comprises a plurality of positioning holes. 
     
     
         3 . The rotating shaft structure for a supporting frame as claimed in  claim 1 , wherein there is a spacer between the bearing and the receiving space, and the spacer contacts the shoulder part. 
     
     
         4 . The rotating shaft structure for a supporting frame as claimed in  claim 1 , wherein the two connecting flakes of the connecting base comprise a positioning hole that is positioned to a positioning column of a safety cover, and the safety cover has a ring wall wrapping around the two connecting flakes of the connecting base. 
     
     
         5 . The rotating shaft structure for a supporting frame as claimed in  claim 1 , wherein the supporting arm has a second supporting arm and the connecting base has a rotating shaft element, there is a third sleeve located at the arm of the second supporting arm that is adjacent to the supporting arm, both the third sleeve and the second sleeve have a spacer and a bearing, and the second sleeve and the third sleeve are locked together by the second locking assembly. 
     
     
         6 . The rotating shaft structure for a supporting frame as claimed in  claim 5 , wherein a protecting cover is plugged into two sides of the second locking assembly locking the third sleeve with the second sleeve. 
     
     
         7 . The rotating shaft structure for a supporting frame as claimed in claim  5 , wherein there is a fourth sleeve located at one side of the second supporting arm that is adjacent to the connecting base, and the second supporting arm is pivoted with the connecting base via the second locking assembly.