Helical stacked composite hoses

Abstract

A helical stacked composite hose comprises a helical body being a helical long strip; each cross section of the helical body having a flat portion facing toward a center of the helical body; an inner cloth enclosing the helical body; an inner surface of the inner cloth having a flat cambered shape; a plurality of thin film layers enclosing the inner cloth; an outer cloth winding around the film layers so as to form as a round cylinder layer; an outer helical spring being installed around the outer cloth; a rubber cover being formed with a recess; the inner cloth, film layers, outer cloth being embedded into the recess; a ferrule enclosing the outer surface of the rubber cover and the outer cloth; a joint having a stepped outer layer. A cross section of the strip of the helical body is a triangular, pentagon and semi-round.

1 . A helical stacked composite hose comprising: 
 a helical body being a helical long strip; each cross section of the helical body having a flat portion facing toward a center of the helical body;    an inner cloth being a strong flexible cloth which enclose the helical body so as to form a round cover; an inner surface of the inner cloth having a flat cambered shape so that fluid can pass through the inner cloth smoothly;    a plurality of thin film layers enclosing the inner cloth; the film layers winding around the inner cloth several turns;    an outer cloth being a strong flexible cloth; the outer cloth winding around the film layers so as to form as a round cylinder layer;    an outer helical spring being installed around the outer cloth; the outer helical spring having a strong structure and having the effect of protecting the interior structure;    a rubber cover made of annular soft rubber; the rubber cover being formed with a recess; the inner cloth, film layers, outer cloth being embedded into the recess and being fixed therein; a front end of the rubber cover being formed with an cambered edge so as to make the assembly work easy;    a ferrule being an annular fixing protecting cover; the ferrule enclosing the outer surface of the rubber cover and the outer cloth; a front inner side of the ferrule being formed with a tapered opening; and    a joint having a stepped outer layer; an interior of the joint being formed as a round hole; an end of the joint with a larger outer diameter being formed with thread and another end of the joint with a smaller diameter being formed with a helical structure so as to match with the helical body; and a middle section of the joint being used to match with the tapered opening of the ferrule.    
   
   
       2 . The helical stacked composite hose as claimed in  claim 1 , wherein a cross section of the strip of the helical body has a triangular shape, and the flat side of the triangular faces toward the center of the helical body.  
   
   
       3 . The helical stacked composite hose as claimed in  claim 1 , wherein a cross section of the strip of the helical body has a pentagon shape, and a flat side of the triangular faces toward the center of the helical body.  
   
   
       4 . The helical stacked composite hose as claimed in  claim 1 , wherein a cross section of the strip of the helical body has a semi-round shape, and a flat side of the triangular faces toward a center of the helical body.