Transmission mechanism and power tool with same

• Main Authors: HU TAO, MA LIGUO, ZHANG QINGFENG
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model provides a transmission mechanism and a power tool with the same. The transmission mechanism includes a housing, a gear unit disposed in the housing, a switching member, and a locking ring. And the switching piece can axially move between a locking position which is kept fixed relative to the shell and an unlocking position which can rotate along with the gear unit so as to change the rotating speed. The shell is provided with an installation groove in the circumferential direction perpendicular to the rotation axis, and the locking ring is inserted into the shell through the installation groove, is installed in a non-rotating mode and can be connected with the switching piece at the locking position so as to fix the switching piece. According to the scheme of the utility model, the shell is an integrated component and has higher strength. The axial thickness of the locking ring is small, and the axial size of the whole transmission mechanism is shortened. The contact area between the lockin