Cordless steel tape stabilization system

A cordless steel tape stabilization system, the cordless steel tape stabilization system being configured for controlling winding and unwinding of a shade cloth, and the cordless steel tape stabilization system comprising:

• a casing assembly, configured to be rotatable to wind the shade cloth;
• a transmission assembly provided within the casing assembly;
• and
• a steel tape;
• wherein the transmission assembly comprises a sun shaft, a planet shaft, a winding shaft and an unwinding shaft;
• the sun shaft is fixed, and is coaxially arranged with the casing assembly;
• the planet shaft is configured to engage with an outer side of the sun shaft, and is drivably connected to the casing assembly, so as to be driven by the casing assembly to rotate around the sun shaft;
• the planet shaft is also rotatably connected to the casing assembly to remain rotatable about an axis of the planet shaft while rotating around the sun shaft;
• the winding shaft is drivably connected to the planet shaft to be driven to rotate about an axis of the winding shaft;
• the unwinding shaft is provided on the same vertical plane as the winding shaft, and is arranged parallel to the winding shaft;
• and the unwinding shaft is rotatably connected to the casing assembly;
• and
• the steel tape is sleeved around an outer side of the unwinding shaft in a coiled manner;
• and an outer end of the steel tape is connected integrally with the winding shaft.