A plumbing sleeve which ectends the width of its leught

摘要

end. The technical field to which the invention described in the claims belongs.;The present invention relates to a sleeve for pipe connection, in particular to increase the range of adjustment of the length of the concrete to be embedded by increasing the adjustment width of the length.;I. The technical problem the invention is trying to solve.;Conventional pipe connection sleeve is a pair of upper and lower body to be coupled to the screw type to adjust the length of the sleeve by the width moved by moving the upper body up and down from the lower body.;However, the lower body is provided with a pipe insertion part for connecting the pipe to the lower part of the sleeve, and the pipe insertion part is formed because the upper body can only move within a position higher than the step of the lower body because the stepped body is formed by the reduction of the inner diameter according to the secured pipe insertion part. There is a problem that the sleeve length adjustment width is reduced by the width of the formed length.;All. The gist of the solution of the invention.;By forming a pipe insertion portion in the upper body to solve the reduction of the movement width of the upper body according to the stepped to extend the length adjustment width of the sleeve.;la. Important uses of the devise.;Plumbing sleeves. `