Title:
LOCKING DEVICE FOR ELECTRIC TOOL CONVERSION HEAD, AND ELECTRIC TOOL
Document Type and Number:
WIPO Patent Application WO/2023/029266
Kind Code:
A1
Abstract:
The present utility model belongs to the field of electric tools, and particularly relates to a locking device for an electric tool conversion head. The locking device comprises an electric tool body, and a conversion head detachably arranged on the electric tool body, wherein the electric tool body is provided with a mounting recess; the conversion head is provided with a mounting portion fitted with an accommodating recess; the mounting portion is rotatably arranged in the mounting recess, and engagement protrusions are provided on the periphery of the mounting portion; engagement grooves fitted with the engagement protrusions are provided in the mounting recess; the mounting portion and the mounting recess rotate relative to each other to make the engagement protrusions and the engagement grooves be relatively fitted with or separated from each other; the conversion head is provided with engagement recesses; the electric tool body is provided with engagement members, and elastic members that drive the engagement members to be fitted with the engagement recesses; and the engagement members and the engagement recesses are fitted to limit the relative rotation of the conversion head and the electric tool body and to make the engagement protrusions and the engagement grooves remain fitted. The present utility model aims to provide a locking device for an electric tool conversion head, which locking device is stably mounted and is also easily mounted and dismounted.
Inventors:
ZHANG YONG (CN)
Application Number:
PCT/CN2021/135226
Publication Date:
March 09, 2023
Filing Date:
December 03, 2021
Export Citation:
Assignee:
ZHANG YONG (CN)
International Classes:
B25F3/00; B25F1/02; B25F5/00
Foreign References:
| CN202185909U | 2012-04-11 | |||
| CN1160134A | 1997-09-24 | |||
| CN113043223A | 2021-06-29 | |||
| CN201067897Y | 2008-06-04 | |||
| CN112659063A | 2021-04-16 | |||
| US5771516A | 1998-06-30 | |||
| EP2366494A1 | 2011-09-21 |
Attorney, Agent or Firm:
BEIJING HUAJI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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