Seat height adjustment mechanism

Abstract

This invention relates to a seat height adjustment mechanism, which is mainly installed on the seat post between the vehicle body and the seat. Several snap-fit ​​grooves are provided at the end of the upper seat post under the seat, and a connecting seat post is provided on the vehicle body to connect with the upper seat post. The connecting seat post is provided with a radial clamping unit, and a pressing handle with a locking part is pivotally assembled on the radial clamping unit. In this way, the locking part of the pressing handle is correspondingly snapped into one of the snap-fit ​​grooves to achieve the effect of quick locking and stable positioning.

Claims

1. A seat height adjustment mechanism, which mainly has an upper seat rod provided under the seat, and a connecting seat rod connected to the upper seat rod on the vehicle body, and a height adjustment mechanism provided between the upper seat rod and the connecting seat rod, comprising: a plurality of snap-fit ​​grooves provided at the end of the upper seat rod and arranged from top to bottom; A radial clamping unit includes a sleeve assembled at the end of the connecting rod. The sleeve is provided with a clamping handle, which is eccentrically pivoted on the sleeve. A locking part is provided on the inner side of the clamping handle. The sleeve has a first groove corresponding to the locking part. The connecting rod has at least one groove on the rod wall corresponding to the sleeve and a second groove corresponding to the locking part. The first and second grooves correspond to several snap-fit ​​grooves to allow the locking part to pass through and selectively engage in one of the snap-fit ​​grooves to form height adjustment and positioning. At the same time, the clamping handle eccentrically presses against the sleeve to tighten the connecting rod, and the groove generates radial elastic deformation to radially clamp the upper rod.

2. The seat height adjustment mechanism as described in claim 1, wherein the upper seat rod has a converging section at its end, the converging section being correspondingly embedded in the connecting seat rod, and the plurality of snap-fit ​​grooves are arranged in the converging section.

3. The seat height adjustment mechanism as described in claim 1 or 2, wherein the seat is a seat body with a notch, and the clamping handle is pivoted on one side, and a shaft is provided at the pivot of the clamping handle so that the shaft passes through the notch of the seat and is locked in place.

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