A stopwatch base comprises a stopwatch base main body which is used for installing a stopwatch and an annular fixing device which is used for fixing the stopwatch base main body; the fixing device comprises a hollow fixing semi-ring and a flexible semi-ring with the tip being provided with an arc-shaped locking portion; the external side of the arc-shaped locking portion is provided with clamping teeth; the tail end of the fixing semi-ring is provided with a stud with the middle being provided with threads; two ends of the stud are fixed on the lateral side of the fixing semi-ring in a 360-degree rotation mode; the top end of the stud is provided with a top cover; the threads are matched with the clamping teeth; the stud is directly fixed on the fixing semi-ring and accordingly a tiny screw is avoided from losing.
Stopwatch base
2015-04-01
Patent
Electronic Resource
English
IPC: | B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS |
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