| 摘要 |
<p>A bolt and base unit assembly (1 ) comprising a bolt (2) and a base unit (3). The bolt (2) comprises a bolt head (4) and a threaded portion (5b) adapted to threadedly engage a threaded portion (8b) of a recess (8) formed in the base unit (3). A first abutment portion (9, 12) formed on the bolt head (4) and a second abutment portion (10, 11 ) formed on the base unit (3) are adapted to cooperate in deforming the second abutment portion (10, 11 ) when the bolt (2) is received in the recess (8). The deformation is sufficient to prevent the bolt (2) from leaving the recess (8). Thereby it is possible to release the connection between the threaded portions (5b, 8b) without risking that the bolt (2) is lost or dropped. The base unit (3) preferably comprises a base part (6) and a flange part (7) which may be attached/detached by means of the bolt (2). The assembly (1 ) may advantageously be used in a valve. This allows maintenance to be performed on the valve without risking that the bolt (2) is lost or dropped during maintenance. Thereby it is ensured that the valve can be reassembled.</p> |
