Title:
QUICK CLAMPING DEVICE OF ELECTRIC HAMMER
Document Type and Number:
WIPO Patent Application WO/2011/088634
Kind Code:
A1
Abstract:
A quick clamping device of an electric hammer includes a chuck connecting rod for installing a hammer chuck or a drill chuck, a rotary sleeve (21), a switch sleeve (15) and a reduction box (19). The rotary sleeve (21) is accommodated in the switch sleeve (15) and the reduction box (19). The chuck connecting rod is installed in the rotary sleeve (21) through splines. The rotary sleeve (21) is provided with steel balls (17). The inner sides of the steel balls (17) butt against the steel ball grooves of the chuck connecting rod, and the outer sides of the steel balls (17) contact with the steel ball retaining ring (16). The steel ball retaining ring (16) is accommodated in the switch sleeve (15). The quick clamping device of an electric hammer is convenient and quick to replace and improves the drilling precision.
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Inventors:
WANG, Wenjiang (NO. 18 Huanglong 3rd. Road, Huanglong Industrial Park Wuy, Jinhua Zhejiang 0, 321200, CN)
Application Number:
CN2010/071032
Publication Date:
July 28, 2011
Filing Date:
March 14, 2010
Export Citation:
Assignee:
ZHEJIANG HAIWANG ELECTRIC MACHINE CO., LTD (NO. 18 Huanglong 3rd. Road, Huanglong Industrial Park Wuy, Jinhua Zhejiang 0, 321200, CN)
浙江海王电器有限公司 (中国浙江省金华市武义县黄龙工业区黄龙三路18号, Zhejiang 0, 321200, CN)
浙江海王电器有限公司 (中国浙江省金华市武义县黄龙工业区黄龙三路18号, Zhejiang 0, 321200, CN)
International Classes:
B25D17/08; B23B45/16
Attorney, Agent or Firm:
HANGZHOU JINYUANTONGHUI PATENT OFFICE (Room A426, 9th BuildingNO. 40 Jiefang Road, Shangchen, Hangzhou Zhejiang 9, 310009, CN)
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