| 摘要 |
A seat assembly includes a seat having a first end portion with a first tube extending from an underside thereof and a second end portion with two second tubes each integrally extending from an underside thereof. A supporting post defines an elongate slot and includes a first end portion with a first post extending upwardly and fixedly received in the first tube and a second forked end portion with two second posts each extending upwardly and each fixedly received in a corresponding one of the two second tubes. A clamping sleeve is securely fitted on the supporting post and includes an inner wall formed with an elongate rib slidably received in the elongate slot.
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