Fastener retention device for a guard cover

A cover (30) for concealing one or more components (20) of a power tool (10) presented herein. The cover (30) can include a through recess (52) between an inner surface (702) and an outer surface (708). The through-recess (52) being arranged for receiving a threaded member (80) protruding from the tool (10) and extending between an inner opening (704) at the inner surface (702) and an outer opening (706) at the outer surface (708). A threaded nut (60) for engaging the threaded member (80) for tightening the cover (30) to the tool (10) can be included. Additionally， the threaded nut (60) can be attached to the cover (30). The nut (60) can include a radially protruding portion (70) with a larger radius than the inner opening (704) and outer opening (706). The cover (30) can have opposing first and second shoulder portions (712， 714) surrounding the inner opening (704) and outer opening (706).

本文所提出的盖罩（30），用于遮蔽电动工具（10）的一个或多个部件（20）。该盖罩（30）可包含位于内表面（702）与外表面（708）之间的穿通凹槽（52）。该穿通凹槽（52）用于容纳从工具（10）伸出的螺纹连接件（80），且连通内表面（702）处的内开口（704）与外表面（708）处的外开口（706）。本盖罩还可配备螺母（60），该螺母用于与螺纹连接件（80）啮合，以将盖罩（30）紧固至工具（10）。此外，该螺母（60）可与盖罩（30）固连。该螺母（60）可包含径向凸起部（70），该凸起部的半径大于内开口（704）与外开口（706）的半径。盖罩（30）可设有环绕内开口（704）与外开口（706）的相对设置的第一肩部（712）与第二肩部（714）。