| 摘要 |
An apparatus for inserting a resilient valve seat (100) into a valve body (20). the valve body being of a type having a radially inwardly projecting annular rib (22) which defines a bore (24) through the valve body, the valve seat being generally annular and having an annular web portion (102), a first annular flange portion (104) projecting radially outwardly from a first end of the web portion and a second annular flange portion (106) projecting radially outwardly from a second end of the web portion to define an annular, radially outwardly opening channel (108) for receiving the rib, the apparatus including a frame (10) which has an opening and having a plate (14) for positioning a valve body adjacent the opening such that the bore in the valve body and the opening in the frame are in register, a plunger assembly slidably mounted in the frame, the plunger assembly having a mounting head (66) and a plurality of circumferentially spaced grabbing elements secured to the mounting head, the grabbing elements including projections (88,90) to engage one of the annular flange portions of the valve seat such that as the mounting head is moved in a given direction in the frame, the grab elements engage the rib in the valve body resulting in a distortion or folding of the valve seat such that the engaged annular flange portion can pass through the bore defined by the rib. |
