Annular ring element

Abstract

The invention relates to a cylindrical or frustoconical annular element or liner for producing a gully hole or pipe well or a pipe conduit. The outer surface ( 5 ) of the annular element ( 1 ) is provided with longitudinal ribs ( 3 ) which are aligned especially in parallel to the generatrices and/or parallel to the center central axis ( 7 ) of the annular element ( 1 ). According to the invention, at least two contiguous longitudinal ribs ( 3 ) with substantially parallel direction of projection extend from the outer surface ( 5 ).

1 . A cylindrical or truncated conical annular element or liner, in particular of plastic, for constructing a channel or pipe-cased shaft or a pipeline, whereby aligned longitudinal ribs ( 3 ) are provided on the outer surface ( 5 ) of the annular element ( 1 ), in particular, parallel to the generatrix and/or parallel to the central median axis ( 7 ) of the annular element ( 1 ), characterized in that at least two longitudinal ribs ( 3 ), lying side by side, having an essentially parallel direction of projection, extend from the outer surface ( 5 ).  
   
   
       2 . The annular element according to  claim 1 , characterized in that the lateral surfaces of at least two side-by-side longitudinal ribs ( 3 ) which have an essentially rectangular or at least partially rectangular cross section, are essentially and at least partially aligned in parallel, whereby the surface of the longitudinal ribs ( 3 ) facing the annular element ( 1 ) is adapted to the curvature of the outer surface ( 5 ).  
   
   
       3 . The annular element according to  claim 1 , characterized in that at least one longitudinal rib ( 3 ) has a radial direction of projection.  
   
   
       4 . The annular element according to  claim 1 , characterized in that the longitudinal ribs ( 3 ) are arranged at regular distances from one another.  
   
   
       5 . The annular element according to  claim 1 , characterized in that transverse ribs ( 2 ) which are aligned in peripheral direction and extend parallel to one another, in particular crossing the longitudinal ribs ( 3 ), in particular continuous, are provided on the outer surface ( 5 ).  
   
   
       6 . The annular element according to  claim 1 , characterized in that the annular element ( 1 ) is assembled, in particular screwed, glued or welded together, in particular in a watertight manner, from several, in particular 2, 3, 4, 6, 8 or 10, partially cylindrical or partially truncated conical annular segments ( 10 ), in particular of the same dimensions.  
   
   
       7 . The annular element according to  claim 6 , characterized in that the longitudinal ribs ( 3 ) are constructed mutually identical.  
   
   
       8 . The annular element according to  claim 6 , characterized in that all longitudinal ribs ( 3 ) of an annular segment ( 10 ) extend from the outer surface ( 5 ) with an essentially parallel direction of projection.  
   
   
       9 . The annular element according to  claim 6 , characterized in that the lateral surfaces of all longitudinal ribs ( 3 ) of an annular segment ( 10 ) which are, in particular, essentially rectangular or at least partially rectangular in cross section are aligned essentially parallel to one another.  
   
   
       10 . The annular element according to  claim 6 , characterized in that each annular segment ( 10 ) has a longitudinal rib ( 3 ) with a radial direction of projection.  
   
   
       11 . The annular element according to  claim 6 , characterized in that each annular segment ( 10 ) has at least one longitudinal rib ( 3 ) which extends parallel to the angular symmetrical plane ( 20 ) of the central angle (α) of the annular segment ( 10 ) extending through the median axis ( 7 ).  
   
   
       12 . The annular element according to  claim 6 , characterized in that the longitudinal ribs ( 3 ) of each annular segment ( 10 ) are arranged at regular distances from one another, preferably symmetrically to the angular symmetrical plane ( 20 ).  
   
   
       13 . The annular element according to  claim 6 , characterized in that a longitudinal rib ( 3 ) of each annular segment ( 10 ) lies on the angular symmetrical plane ( 20 ).  
   
   
       14 . The annular element according to  claim 6 , characterized in that each annular segment ( 10 ) has radially outward and/or inward projecting broad flange surfaces ( 16 ) on its straight broad sides ( 15 ) via which the annular segments ( 10 ) can be connected to one another, in particular in a watertight manner, to form an annular element ( 1 ).  
   
   
       15 . The annular element according to  claim 6 , characterized in that the annular element ( 1 ) or each annular segment ( 10 ) has on its curved longitudinal sides ( 17 ) normal to the median axis or axis of curvature ( 7 ), outwardly and/or inwardly projecting longitudinal surfaces of the flange ( 18 ) via which the annular element ( 1 ) can be connected to further annular elements ( 1 ), in particular in a watertight manner, to form a pipe-cased shaft or the like.  
   
   
       16 . The annular element according to  claim 14 , characterized in that recesses ( 21 ) for fastening means are provided in the broad surfaces ( 16 ) of the flange and/or the longitudinal surfaces ( 18 ) of the flange.  
   
   
       17 . The annular element according to  claim 6 , characterized in that, in particular, continuous transverse ribs ( 2 ) are provided on each annular segment ( 10 ) on the outer surface ( 5 ) extending in peripheral direction and parallel to one another, in particular crossing the longitudinal ribs ( 3 ).  
   
   
       18 . The annular element according to  claim 1 , characterized in that the longitudinal ribs ( 3 ) are continuous.  
   
   
       19 . The annular element according to  claim 1 , characterized in that the annular element ( 1 ) and/or the individual annular segments ( 10 ) are made as one-piece shaped parts.  
   
   
       20 . The annular element according to  claim 1 , characterized in that the annular element ( 1 ) and/or the individual annular segments ( 10 ) and/or the shaft constructed from annular elements ( 1 ) are surrounded, at least partially, on the outside ( 5 ) by a concrete layer.  
   
   
       21 . The annular element according to  claim 1 , characterized in that at least one groove ( 16 ′,  18 ′) is made in the longitudinal surface ( 16 ) and/or in the broad surface ( 18 ) of the flange for accommodating seals ( 16 ″,  18 ″) with which adjacent broad surfaces ( 16 ) or longitudinal surfaces ( 18 ) of the flanges can be sealed.  
   
   
       22 . A shaft, in particular a channel shafts or pipe-cased shaft, constructed of annular elements according to  claim 1.