| 摘要 |
This invention relates to a flashlight and in particular to one including, a tubular barrel with internal threads at one end and external threads at another end, a packing ring fitted with the end of the tubular barrel with external threads, a head threadedly engaged with the end of the tubular barrel with external threads, a socket fitted in the head, a light bulb fitted in the socket, a reflector mounted on the socket, a piece of glass disposed on the reflector, and a switch assembly including a switch having a center threaded hole, two packing rings, a tail seat threadedly engaged with the end of the tubular barrel with internal threads and having a hexagonal recess, a hexagonal nut fitted in the hexagonal recess, and a screw having a first threaded portion engaged with the hexagonal nut and a second threaded portion engaged with a center threaded hole of the switch, whereby the flashlight may be switched on or off simply by turning the switch at its tail end.
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