Title:
CLAMPING MECHANISM AND ELECTRIC TOOL
Document Type and Number:
WIPO Patent Application WO/2023/025148
Kind Code:
A1
Abstract:
A clamping mechanism and an electric tool. The clamping mechanism comprises a main body (1), a locking cap (2), a spring chuck (3) and an outer sleeve (5) which is sleeved on the periphery of the locking cap and can drive the locking cap to rotate, wherein the spring chuck (3) comprises at least two spring claws (32) which are circumferentially arranged to form a clamping claw hole (33); the locking cap (2) is connected to the main body (1) and can move in the direction toward the main body so that the spring claws (32) are close to each other under the pressing action of an inner wall of the locking cap to realize clamping, or move in the direction away from the body so that the spring claws are loosened; an annular member (4) is arranged at the end of the locking cap (2) close to the main body, and an elastic member (6) is arranged between the annular member (4) and the locking cap (2); a first recess (52) is provided on an inner wall of the outer sleeve (5), and a cam block (44) cooperating with the first recess is arranged on the annular member; and when the cam block (44) is rotated into the first recess (52), the annular member (4) is engaged with the main body under the action of the elastic member to limit the rotation of the locking cap relative to the main body in the direction of the loosening of the spring claws in a clamping state of the spring claws, and when the cam block is moved out of the first recess, the annular member is disengaged from the main body. The locking of the spring claws can be realized by limiting the rotation of the locking cap relative to the main body by means of the annular member arranged between the locking cap and the main body.
Inventors:
CHAI HAOLIN (CN)
LIN PENG (CN)
ZHANG JIXIANG (CN)
HU LONGLONG (CN)
WANG ZIYING (CN)
LIN PENG (CN)
ZHANG JIXIANG (CN)
HU LONGLONG (CN)
WANG ZIYING (CN)
Application Number:
PCT/CN2022/114262
Publication Date:
March 02, 2023
Filing Date:
August 23, 2022
Export Citation:
Assignee:
SHANDONG WEIDA MACH CO LTD (CN)
TECHTRONIC CORDLL GP (US)
TECHTRONIC CORDLL GP (US)
International Classes:
B24B23/02; B24B45/00
Domestic Patent References:
| WO2020113703A1 | 2020-06-11 |
Foreign References:
| CN215588836U | 2022-01-21 | |||
| CN207953376U | 2018-10-12 | |||
| CN106424861A | 2017-02-22 | |||
| CN211491358U | 2020-09-15 | |||
| CN109940200A | 2019-06-28 | |||
| CN107414745A | 2017-12-01 |
Attorney, Agent or Firm:
BEIJING MIZAR STAR INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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