A hidden screw nut lifting folding chair

Abstract

A hidden screw nut lifting folding chair, the folding chair includes a backrest and a seat cushion, the floor at the bottom of the bottom compartment is provided with a lifting device installed under the folding chair, and the lifting device includes several groups of screw nuts arranged vertically in sequence mechanism, each set of lead screw and nut mechanisms includes lead screws, nuts and motors, wherein the motor in the lead screw and nut mechanism at the top of the arrangement is fixed on the bottom plate, and the nut in the lead screw and nut mechanism at the end of the arrangement is fixed on the folding On the chair, the motors in the other lead screw and nut mechanisms are fixed on the adjacent nuts through the connecting piece in turn, so that after the motor drives the lead screw to rotate, the nuts rise or fall together in the vertical direction, and finally realize the vertical lifting of the folding chair There is a gap on the floor along the lifting path of the folding chair, and a sealing device capable of sealing the gap is provided in the bottom compartment. The invention realizes the automatic lifting of the folding chair through multiple groups of lead screw and nut mechanisms, saves manpower, and improves the overall working efficiency.

Description

technical field [0001] The invention relates to the technical field of bus facilities, in particular to a hidden screw nut lifting folding chair. Background technique [0002] At present, buses have become an indispensable means of transportation for people to travel. From the perspective of design and technical characteristics, buses are different from other large and medium-sized passenger cars (such as long-distance buses, tourist buses, group buses, etc.). There are passenger seats and passages for passengers to stand and walk on the floor above the bottom compartment. The top plate on the top of the bus body is provided with handles for passengers to assist when standing. It is required that the compartment has a large standing area. The entrance and exit are wide and there are more than two doors. This has caused the relatively poor condition of bus riding comfort. The reason for this is that the number of seats on the bus is limited. Passengers with long distances a...

AI Technical Summary

Problems solved by technology

This has caused the relatively poor condition of bus riding comfort. The reason for this is that the number of seats on the bus is limited. There are some discomforts for passengers who have long journeys and are infirm. For this reason, some passengers bring their own small saddles as temporary seats, but because they cannot be fixed, there are certain safety hazards during driving

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