Water-cooling trephine

The utility model discloses a water cooling trephine which comprises an outer pipe, a trephine body arranged at one end of the outer pipe and a handle arranged at the other end of the outer pipe, the trephine body comprises a saw barrel, a sawtooth ring is arranged at one end of the saw barrel, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU CHANGFENG, LI HUIHUA, LOU HAIPING, ZHANG JIASHUN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a water cooling trephine which comprises an outer pipe, a trephine body arranged at one end of the outer pipe and a handle arranged at the other end of the outer pipe, the trephine body comprises a saw barrel, a sawtooth ring is arranged at one end of the saw barrel, and a saw handle connected with the outer pipe in a sleeved mode is arranged at the other end of the saw barrel. A water outlet hole communicated with the sawtooth ring is formed in the saw handle; the periphery of the outer pipe is sleeved with a handle, a water inlet hole is formed in the handle, a supporting rod assembly is arranged in the outer pipe, a water outlet channel is formed among the handle, the outer pipe and the supporting rod assembly in a surrounding mode, and a drainage hole communicated with the water outlet channel is formed in the corresponding position of the supporting rod assembly. According to the utility model, the saw barrel with the sawtooth ring is arranged, and cooling water cools the sawt