Elevational adjusting device using air pressure rod to lift object

Abstract

An elevational adjusting device using an air pressure rod to lift an object is disclosed. A connector is used to connect the object with the air pressure rod. The adjusting device comprises an operating rod fixed to the object to be adjusted; a rope; and a movable plate pivotally connected to the connector. The pull end and the pressure applied end of the movable plate are not at the same line. It is only necessary to rotate the operating rod, the rope will be pulled to drive the pressure applied end of the movable plate to touch a touch moving end of the movable plate of the air pressure rod, causing the air pressure rod to move telescopically to drive the object to move upwards or downwards so as to adjust the position of the object.

What is claimed is:  
     
         1 . An elevational adjusting device using an air pressure rod to lift an object; a connector being used to connect the object with the air pressure rod; the adjusting device comprising: 
 an operating rod fixed to the object to be adjusted;    a rope having one end connected to the operating rod; another end of the rope being connected to a movable plate; and    a movable plate pivotally connected to the connector; the movable plate being rotatable; the movable plate having at least one pull end and one pressure applied end; the pull end being connected to the rope and the pressure applied end being near a telescopic end of the air pressure rod; the pull end and the pressure applied end being not at the same line;    wherein it is only necessary to rotate the operating rod, the rope will be pulled to drive the pressure applied end of the movable plate to touch a touch moving end of the movable plate of the air pressure rod, causing the air pressure rod to be telescopic to drive the object to move upwards or downwards so as to adjust a position of the object.    
     
     
         2 . The elevational adjusting device as claim in  claim 1 , wherein a portion of the operating rod is enclosed within a box; an exposed portion of the operating rod is an operating handle; the box serves to fix the handle to a position of the object to be adjusted.  
     
     
         3 . The elevational adjusting device as claim in  claim 1 , wherein one side of the box is opened so that the operating rod is movable.  
     
     
         4 . The elevational adjusting device as claim in  claim 1 , wherein one end of the operating rod connected to the rope has a line weight which is pivotally connected to the box through a shaft, thereby, the operating rod is rotatable and displaceable.  
     
     
         5 . The elevational adjusting device as claim in  claim 2 , wherein one end of the operating rod connected to the rope has a line weight which is pivotally connected to the box through a shaft, thereby, the operating rod being rotatable and displaceable.  
     
     
         6 . The elevational adjusting device as claim in  claim 2 , wherein an exposed side of the operating handle is at one side of the box and has a slot so that the operating handle is movable within a range of the slot; at the distal end that the operating handle moves, a positioning hole is formed; the positioning hole is perpendicular to a slot so that after the operating rod pulls the rope, the operating rod is positioned in the positioning hole.  
     
     
         7 . The elevational adjusting device as claim in  claim 1 , wherein a bottom of the pull end of the movable plate is a round supporting seat; after the rope passes through the pull end, the rope is connected to a stopper so that the rope will not release.  
     
     
         8 . The elevational adjusting device as claim in  claim 6 , wherein the stopper has a shape selecting from one of a group containing a ball shape and a cylindrical shape.