| 摘要 |
<p>Disclosed is an angle type magnetic electrically conductive ball valve switch, comprising a base (1). A rotary shaft (2) is vertically arranged on the base (1), a valve stem (3) is fixed to the top end of the rotary shaft (2), a magnetic block (4) is arranged on the valve stem (3), and at least one magnetic electrically conductive ball switch (5) is arranged on the base (1) in a sector-shaped manner with respect to the valve stem (3). The magnetic electrically conductive ball switch (5) comprises a non-electrically conductive enclosed shell (7). A pair of metallic guide rail pieces (31, 32) which are separated from each other are fixedly and symmetrically arranged in an internal cavity (8) of the shell (7), and a track (9) is formed with the spacing between opposite inclined inner side surfaces (41, 42) of the two metallic guide rail pieces (31, 32), the track (9) forming an inverted cone shape from top to bottom; and an electrically conductive ball (10) is arranged in the track, and the electrically conductive ball (10) corresponds to the magnetic block (4) located above it, wherein the diameter of the electrically conductive ball (10) is greater than or equal to that of the lower end of the track (9) and smaller than that of the upper end of the track (9). The magnetic switch can monitor valve positions of all angles of the valve to prevent accidents from happening.</p> |
