Pivot axis of an industrial computer door guard

Abstract

A pivot axis structure of an industrial computer door guard comprises a big-head screw, two side shells and two washers; wherein a root portion of a screw post of the big-head screw is disposed circularly with a basin-shaped side shell and a washer is disposed therein; another basin-shaped side shell is also disposed with a washer therein; two end portions of the computer door guard protrude outside two sides of a machine face plate; the screw posts of the big-head screws go outwardly through the respective side plates of the door guard and the mentioned side shells from inside; the distal ends thereof are screwed to the machine body to make the two washers attach relatively to the two sides of the side plates of the door guard in a certain tightness to produce a proper resistance so as to enable the door guard to be positioned at any angle.

1 . A pivot axis structure of an industrial computer door guard comprises a big-head screw, two side shells and two washers; wherein the root portion of the screw post of the big-head screw is disposed circularly with a basin-shaped metal side shell; the said side shell has a receiving slot disposed inside and a washer is disposed inside the said receiving slot; 
 another basin-shaped side shell is disposed with a receiving slot and a washer is disposed inside the said receiving slot;    two end portions of the computer door guard protrude outside two sides of a machine face plate; a screw post of the big-head screw goes outwardly through the respective side plates of the door guard and the side shell disposed with a washer from inside; the distal end thereof is screwed to the machine body; wherein the slot openings of the two basin-shaped side shells opposite each other and parted by the door guard; the two washers attach relatively to the two sides of the side plates of the door guard in a certain tightness; since the said two washers possess a certain resilience, they press against the two sides of the door guard with a proper resistance to enable the door guard to be positioned at any angle without hanging downward.    
     
     
         2 . A pivot axis structure of an industrial computer door guard according to  claim 1 , wherein the washer is a ring-shaped structure made of rubber.  
     
     
         3 . A pivot axis structure of an industrial computer door guard according to  claim 1 , wherein the washer can be replaced by a spring.  
     
     
         4 . A pivot axis structure of an industrial computer door guard according to  claim 1 , wherein a washer comprises two reversely jointed and bent ring-shaped plate structures.