A lifting chair

By combining scissor-type cross hinges with a platform and wheel balancing mechanism, the height and backrest angle of the adjustable chair can be adjusted, solving the problem of inability to adjust in existing technologies and improving applicability and space utilization efficiency.

CN224440784UActive Publication Date: 2026-07-03XINXIANG PINGYUAN AVIATION TECH ENGCO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG PINGYUAN AVIATION TECH ENGCO
Filing Date
2025-07-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing height-adjustable chairs cannot adjust the height or backrest angle, limiting their adaptability.

Method used

The main support leg and the rear support leg are scissor-type cross hinges. Combined with the platform balance linkage rod and wheel balance mechanism, the drive unit drives the rear support leg and the main support leg to fold, so as to realize the height adjustment. At the same time, the backrest angle can be adjusted by the inclined support rod and the sawtooth locking structure.

Benefits of technology

It enables the adjustable chair to transform its shape during the lifting process, reducing the floor space occupied, solving the problems of working in low spaces and transporting and storing it, and allowing the backrest angle to be adjusted at will, making it suitable for a wide range of scenarios.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224440784U_ABST
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Abstract

The utility model relates to a lifting chair, main support leg and rear support leg present cutting formula cross hinged, cushion frame and backrest frame hinged, platform balance linkage link and main support leg hinged, first platform balance link and rear support leg hinged, second platform balance link and cushion frame hinged, rear support leg and cushion frame hinged, any in the movable part and fixed part of drive part and cushion frame movable assembly, another and main support leg hinged, cushion frame has the extension part of rear extension to the back side of backrest frame, the both sides of backrest frame are provided with the support link of oblique setting in the rear, the lower extreme of support link is hinged on the extension part, the upper extreme of support link is close to the side of backrest frame and has the sawtooth shape and stops structure, and backrest frame has the hook portion that can be stopped with each clamping groove of sawtooth shape and stops structure in proper order. The device can adjust the chair back angle at will, and keeps cushion frame horizontal in the lifting process of lifting chair.
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