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US 12,485,521 B2Granted
Electric tool
AssigneeJiangsu Dongcheng Tools Technology Co., Ltd.
InventorYuanwei Pu
Life of this patent
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Abstract
The present disclosure relates to an electric tool, including a housing, a motor accommodated in the housing, a transmission mechanism, and an impact mechanism, where the impact mechanism includes an air cylinder, and an impact rod, a guide device, an impact hammer, and a piston arranged in the air cylinder; and when the impact rod moves along a direction opposite to an output direction, a second guide part sequentially supports a third section and a second section greater than the third section in diameter.
Claims10
An electric tool, comprising:
- a housing;
- a motor accommodated in the housing;
- a transmission mechanism;
- and
- an impact mechanism, the impact mechanism comprising:
- an air cylinder;
- and
- an impact rod;
- a guide device;
- an impact hammer, and
- a piston arranged in the air cylinder, the piston compressing air and driving the impact hammer to impact the impact rod;
- wherein the guide device comprises a first guide part and a second guide part located behind the first guide part;
- wherein the impact rod has a first section sliding along the first guide part, and a second section and a third section which slide along the second guide part, and a radial size of the third section is smaller than a radial size of the second section;
- when the impact rod moves along an output direction, the second guide part sequentially supports the second section and the third section;
- and
- when the impact rod moves along a direction opposite to the output direction, the second guide part sequentially supports the third section and the second section, such that the impact rod is inclined relative to an axis of the air cylinder before moving.
13 more elements
Dependencies are inferred from the claim text.