Foldable single seat for urban railway vehicles

Abstract

The invention discloses a foldable individual seat for a city railway vehicle, and belongs to the field of railway vehicle foldable seats. The foldable individual seat comprises a backrest frame, a seat cushion, a seat installation base, a seat supporting base and a seat cushion frame. The backrest frame is hung on hanging holes in the seat installation base. The seat supporting base comprises two limiting blocks, and each limiting block is provided with two top bead clamping grooves. A beam is fixed at the back ends of two end plates of the seat cushion frame, the two ends of the beam are fixedly and vertically connected with two top bead structures respectively, a top bead is arranged on the top of each top bead structure, and the top bead structures are matched with the limiting blocks to form a top bead self-locking mechanism. According to the foldable individual seat, the top bead self-locking mechanism is adopted, the seat cushion can be limited and fixed through the top bead self-locking mechanism when unfolded or folded, and operation is easy and convenient. The seat is installed in sliding grooves in the side walls of a vehicle body through sliding blocks, the installation method is simple and efficient, and later period repairing and maintaining are convenient. After being folded, the seat is self-locked, the physically challenged can place a wheelchair at the position of the seat, and space is saved.

Description

technical field [0001] The invention belongs to the field of folding seats for rail passenger vehicles, and in particular relates to a foldable single seat for urban railway vehicles. Background technique [0002] Foldable single seat is being more and more applied to urban railway vehicles because of its advantages such as flexible arrangement, comfortable ride and space saving in the vehicle. [0003] However, the existing collapsible single seat for urban railway vehicles is a traditional spring return type, and the seat cushion under it will be reset by the spring and be in a vertically folded state without human intervention. You need to manually put down the cushion and sit on it, relying on your own gravity to maintain the unfolded state of the cushion. After the passenger gets up, the seat cushion will quickly reset under the action of the spring and return to the vertical folded state. [0004] The above-mentioned traditional spring-return seat will be subjected t...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing traditional spring-return seat will be impacted by relatively large kinetic energy during the rapid reset process of the seat cushion. Due to the limitation of spring fatigue life and the technical problem that it is difficult to achieve the expected design service life, the invention provides a foldable single seat for urban railway vehicles

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