Seat capable of adjusting sitting and lying states in rail vehicle business district

Abstract

The invention discloses a seat capable of adjusting sitting and lying states in a rail vehicle business district. According to the technical scheme, a headrest middle framework and a headrest side framework are connected through a damping hinge, a damping guide rail and a linear sliding groove are installed at the rear end of the headrest framework, and a sliding block and a limiting block are installed on a backrest framework; the left and right ends of the base are provided with curved sliding grooves, the rear end of the cushion framework is connected with a roller; the lower side of the cushion framework is connected with a supporting plate, and a three-level sliding rail and a rack are installed on the lower portion of the supporting plate. The front end of the seat translation motoris connected with a gear rotating shaft, and gears are fixed to the left end and the right end of the gear rotating shaft and meshed with racks. The front end of a leg support motor is connected withan ejector rod of which the front end is connected with a leg support framework; a pin I is mounted on the leg support motor and connected with a steel wire rope I, and a pin II is mounted on the seattranslation motor and connected with a steel wire rope II. The sitting posture, the semi-reclining state and the full-reclining state of the seat can be adjusted, operation is convenient, and the comfort degree is high.

Description

technical field [0001] The invention relates to the technical field of rail vehicle seats, in particular to a seat with adjustable sitting and lying postures in a rail vehicle business area. Background technique [0002] Seats in rail vehicles are the most direct contact interface for passengers, and the design of seats directly affects the comfort of passengers on board. The existing seat can be adjusted for sitting and lying positions, and the structure of the cushion board is optimized to meet people's requirements for seat comfort. When the existing seat is adjusted in a sitting position and a lying position, it usually takes up a large space. The patent CN111907543A is a kind of sitting and lying seat in a business district with a small occupation area developed by our company. However, in this patent, during the adjustment process of the sitting and lying postures of the seat, there is usually an obvious phenomenon of speeding up, which increases the discomfort of th...

AI Technical Summary

Problems solved by technology

However, in this patent, during the adjustment process of the sitting and lying positions of the seat, there is usually an obvious phenomenon of speeding up, which increases the discomfort of passengers, and the headrest cannot be adjusted, and the state of the seat cannot be manually adjusted.

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