Patent ID: 10442070

Abstract:
Disclosed is a hand-held electric tool, in which a main shaft (1) swings back and forth around an axis (11) to drive accessories (9) of the tool to carry out various types of operations. A swing device is provided with an eccentric element (41) capable of reducing the shock caused to a shell (7) by a connecting rod component (3). Another shell (6) is provided with a valve device (5) used for adjusting the flow of air current in different air ducts. The accessories (9) of the tool can be cooled or cleaned through the air current in one of the air ducts. The main shaft (1) is provided with an elastic support (2) used for balancing the load when an electrical motor (8) is operating. The elastic support (2) can replace a bearing in supporting the main shaft (1) swinging back and forth around the axis (11).