| 摘要 |
<p>An explosion proof electrical connecting device, a plug thereof and a socket thereof. The plug (100) has a plug housing (10) and a plug subassembly (30) provided in an end of the plug housing and having an inserting bolt (300). On the outside wall of the inserting bolt, two opposite first contacts (31, 32), two opposite second contacts (33, 34) and a wedge (35) positioned right above one of the second contacts are provided in turn from the vicinity of the inserting end face of the inserting bolt toward the far end. The socket (200) has a socket housing (20) and a socket subassembly (201). The socket subassembly is provided in an end of the socket housing and has an inserting bolt hole (401) for the inserting bolt being inserted or pulled out and rotated, a guiding slot (450), two opposite first electrodes (51, 52), and two opposite second electrodes (43, 44), which are provided on the wall of the inserting bolt hole respectively. When the inserting bolt is inserted in the inserting bolt hole and the wedge is rotated to a conductive position by certain angle along the guiding slot, the first contacts and the second contacts are electrically connected with the first electrodes and the second electrodes on the conductive position respectively. The electrical connecting device is separated and switched off with reverse rotation.</p> |
