Patent ID: 11945551
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A backrest adjustment structure for a boat seat, comprising a backrest and a bracket, a bottom of the bracket being rotatably connected to a seat of a boat, a back of the backrest being provided with at least two spaced pivot bases, an upper end of at least one of the pivot bases having an upper restricting portion, a pivot shaft being formed on a top of the bracket, the pivot shaft being rotatably pivoted between the pivot bases, the bracket being selectively engaged with the upper restricting portion;
the bracket includes an upper bracket and a lower bracket, a top of the lower bracket is inserted into the upper bracket from a bottom of the upper bracket, a bottom of the lower bracket is rotatably connected to the seat of the boat, the pivot shaft is formed on a top of the upper bracket, and the upper bracket is movable up or down relative to the lower bracket to achieve height adjustment of the backrest;
at least one side of the upper bracket is provided with at least one elastic plate, the elastic plate and the lower bracket are connected through a protruding tooth to be engaged in a tooth groove, along with the top of the lower bracket to be moved up and down relative to the upper bracket, the protruding tooth or the tooth groove is moved up and down relative to the upper bracket.