| 摘要 |
<p>1. Trickle irrigation apparatus of the kind comprising a main conduit for feeding a series of branches for drip or similar flow, each of said branches comprising a small tubular element pointed to penetrate the above mentioned conduit by the simple means of forcing the element in, characterized in that the main conduit is constituted by a pipe (1) of resiliently deformable material, of cross-section such that it is not subject to any interior pressure, at least one internally convex arched depression extending completely along the length of the pipe, of type known per se, such that each tubular element (2, 6, 8) is formed in the manner of a spike (2a, 6a) at its extremity, appropriate for being forced into the wall of said depression of the conduit, the deformation of this depression by inflation under the effect of the pressure of the water causing automatic sealing of perforations previously made in this conduit when the tubular elements are eventually removed.</p> |
