| 摘要 |
A locking device for an extension pipe of a vacuum cleaner is provided that has a holder having first and second connection parts formed at both ends, and a locking hole in correspondence to a fixing hole formed in the extension pipe. The first and the second connection parts are connected to the operation handle and the extension pipe, respectively, and the locking hole is formed at a side of the second connection part. A cap is connected to an outer surface of the second connection part of the holder, and has an elastic locking member integrally formed therein and elastically biased toward the locking direction.
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