| 摘要 |
The invention refers to an axially reciprocatable control rod (4) slidably fitted in a supporting tube (2) protruding into the interior of a box-like structure (1) containing the lubricated mechanical members (6-13) for driving the rod (4). An oil guard sleeve (14) extending toward the supporting tube (2) has one end secured to the inward section of the control rod (4) which protrudes from the supporting tube (2) into the interior of the said box-like structure (1), and has its opposite open end fitted over the said supporting tube (2), so as to be longitudinally slidable therealong. The oil guard sleeve (14) keeps always covered and protected against any oil splashes that section of the control rod (4) which protrudes from the supporting tube (2) into the interior of the box-like structure (1). |
