Durable pivoting device for use between table lamp and lamp support

The utility model relates to a durable pivoting device between a table lamp seat and a lamp support. A lamp support body provided with a lamp shade and a lamp tube is assembled on a rotary seat. The rotary seat is hidden in the table lamp seat, and pivots by the durable pivoting device which is composed of arced reed pieces, a connecting rod, a transverse rod, bolts, etc. The combined end and the positioning end of the two reed pieces are locked on an inner wall of the table lamp seat, and the regulation end is assembled by the connecting rod. A lead hole is arranged on the transverse rod. The utility model uses the elasticity of the reed pieces to regulate the bolts, the transverse rod, and the connecting rod to link and assemble. The reed pieces can be controlled on the circular pivoting surface of the rotary seat to bound and contract the friction tolerance of the rotary seat. Thus, the utility model can have a regulation function for bounding and positioning the lamp support or releasing the turning and swinging angle of the rotary seat of the lamp support.