Full-automatic lifting chair

Abstract

The invention discloses a full-automatic lifting chair, which comprises a base and a supporting rod, wherein the supporting rod is in sliding connection to the base along the vertical direction; a cavity, in which the supporting rod slides, is formed in the base; an annular bulge is arranged on the inner wall of the cavity; the annular bulge divides the cavity into an upper cavity and a lower cavity; a through hole for enabling the supporting rod to pass through is formed in the annular bulge; the lower end of the supporting rod is connected with a swing plate through a hinge point in a rotatable manner; a first stop block and a second stop block which press against or are separated from the swing plate are respectively arranged at positions, located at two ends of the swing plate, at thebottom of the lower cavity; the two ends of the swing plate are respectively connected with the base through a first tension spring and a second tension spring; the stiffness factors of the first tension spring and the second tension spring are not equal; and a bayonet lock pressing against or separated from the swing plate is arranged on the side, close to the small stiffness factor, of the supporting rod. The full-automatic lifting chair provided by the invention is simple in structure and higher in bearing capacity, and the safety coefficient is increased.

Description

technical field [0001] The invention relates to a fully automatic lifting seat. Background technique [0002] The automatic lift seat is a kind of chair for people to sit on. Its feature is that the height of the seat board on the seat can be adjusted. The seat board slides vertically and is connected to the base. The base can be placed on the ground and then adjusted The sitting height of a person relative to the ground. The key to a fully automatic lift seat lies in its mechanism for adjusting the height of the seat plate. In the prior art, there are many types and forms of such height-adjusting mechanisms; among them, the most commonly used structure is the seat plate and the base. A cylinder is set between them, and then people can automatically change the height of the seat plate according to their weight after sitting on the seat plate. This type of fully automatic lift seat has a greater safety hazard, and it is easy to induce a sudden change between the seat plate a...

AI Technical Summary

Problems solved by technology

The key to a fully automatic lift seat lies in its mechanism for adjusting the height of the seat plate. In the prior art, there are many types and forms of such height-adjusting mechanisms; among them, the most commonly used structure is the seat plate and the base. A cylinder is set between them, and then people can automatically change the height of the seat plate according to their weight after sitting on the seat plate. This type of fully automatic lift seat has a greater safety hazard, and it is easy to induce a sudden change between the seat plate and the base due to the aging of the cylinder. Detach or even burst, and cause personal injury to the occupants; in addition, there is also a transmission mechanism between the seat and the base to realize the height adjustment of the seat, this type of fully automatic lift seat often due to the structure of the transmission Complicated and inconvenient to adjust

Generally speaking, the fully automatic lifting seats in the prior art generally have the disadvantages of complex structure, insufficient safety factor and low carrying capacity

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