Patent ID: 11959293
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E  F  A | IPC A  E  F

Claim 3:
4. The umbrella seat of claim 3, wherein a through hole for receiving the pedal shaft is longitudinally formed at a position, close to the inner side, in the middle of the rotary base between the two mounting plates;
a pin hole is radially disposed at the upper end of the pedal shaft;
the upper end of the pedal shaft is inserted between the two connecting lugs of the pedal, and has a certain distance to the bottom of the pedal;
the upper end of the pedal shaft is connected to the connecting lugs by passing a cylindrical pin through the inner connecting hole of the connecting lug, the pin hole and the connecting hole of the connecting lug on the other side;
the plurality of positioning holes corresponding to the through hole of the rotary base for receiving and positioning the lower end of the pedal shaft are annularly disposed at intervals on the base plate close to the outer edge; and
when the pedal is stepped down, the pedal shaft is driven by the pedal to move up to disengage from the positioning hole, and the rotary base can rotate freely.