Do not assume that an adaptor suitable for small devices is appropriate for two laundry appliances. Their electrical demand can make a shared arrangement unsafe.
Understanding this situation
The total load and the condition of the connection matter, not just whether both plugs physically fit. An adaptor that becomes warm, loose or discoloured should not be treated as a normal consequence of doing laundry.
A useful next step
Use the appliance supply instructions and obtain appropriate electrical advice about the available sockets. Stop using damaged or overheating equipment. Alternating cycles is not a substitute for assessing an unsuitable or already heat-damaged adaptor, and no protective device should be bypassed.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.