Abstract: A three-dimensional measuring device includes a ball-shaped structure, an X-axis measuring module, a Y-axis measuring module and a Z-axis measuring module. The ball-shaped structure is moved and/or rotated in response to a movement of a movable object. The X-axis measuring module includes a first measuring structure and a first position sensor. The first measuring structure is movable along an X-axis direction and contacted with the ball-shaped structure. The Y-axis measuring module includes a second measuring structure and a second position sensor. The second measuring structure is movable along a Y-axis direction and contacted with the ball-shaped structure. The Z-axis measuring module includes a third measuring structure and a third position sensor. The third measuring structure is movable along a Z-axis direction and contacted with the ball-shaped structure.

Abstract: A bracket of a robot demonstrator for supporting a tablet computer is disclosed. The bracket includes a bar linkage assembly, a first clamping member pivoted with the bar linkage assembly, and a second clamping member positioned opposite to the first clamping member and pivoted with the bar linkage assembly. A distance between the first clamping member and the second clamping member can be adjusted via adjusting a length of the bar linkage assembly for clamping and supporting the tablet computer.

Abstract: A garbage can has a main body which is provided with a cover, a garbage holder, and a synchronization mechanism assembly enabling the cover and the garbage holder to work synchronously. The synchronization mechanism assembly comprises a motor having a spindle, a drive gear mounted on the spindle of the motor, a toothed piece of the garbage holder, a transmission gear engaged with the drive gear and a toothed piece of the cover, and a control chip for controlling the operation of the motor. As the motor is started, the drive gear is actuated to turn so as to drive the garbage holder via the toothed piece of the garbage holder. The transmission gear is also driven by the drive gear in motion such that the cover is driven by the transmission gear via the toothed piece of the cover.