A new swing check valve

Abstract

The application relates to the technical field of swing check valve mounting, and discloses a novel swing check valve which comprises a swing check valve body and a connecting pipe, flanges are fixedly installed on the two sides of the swing check valve body and one end of the connecting pipe, mounting frames are fixedly connected to the front and back of the two sides of the swing check valve body, annular plates are fixedly connected to the upper and lower ends in the mounting frames, sliding blocks are slidingly installed on the outer side walls of the annular plates, fixed blocks are fixedly connected to one side of the sliding blocks, threaded rods are rotationally connected to one side of the fixed blocks, mounting plates are screw-connected to one side of the threaded rods, fixed grooves are formed in the side of the mounting plates close to the flanges, and limiting blocks for limiting the flanges are slidingly connected in the fixed grooves; when the flanges of the swing check valve and the connecting pipe are connected in alignment, the limiting blocks are used to abut against one side of the flanges to limit the flanges, so that the flanges of the connecting pipe and the swing check valve body are prevented from deviating.

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