Convenient chair capable of lifting in time

Abstract

The invention discloses a user-friendly chair which can be lifted up and down in time. The user-friendly chair comprises a base frame, a seat face and a backrest, wherein, the seat face is connected with a straight lifting casing pipe downwards; the straight lifting casing pipe is sheathed on an upright with which the base frame is connected upwards and can go up and down; one side of the upright is evenly provided with a plurality of lifting inclined teeth with the same size and shape from down up; a spring pin seat is arranged at the lower part of the lifting casing pipe corresponding to the lifting inclined teeth; spring pins are positioned on the spring pin seat; spring pin heads are blocked in the lifting inclined teeth under the spring force while spring pin tails movably coordinate with a lifting switch mechanism. The user-friendly chair of the invention has reliable quality and low cost with no hydraulic oil to cause the indoor air pollution; the height of the chair seat face can be adjusted along with the height of users in time and prohibit the adjustment while the chair backrest can also be adjusted back and forth and prohibit the adjustment; personal clothes can also be conveniently hung on a hanger of the backrest. Therefore, the user-friendly chair of the invention can not only provide comfort and heath care, but also have convenient use and is especially appropriate for students to attend class in the classroom and learn at home and also appropriate for a majority of users with different genders and ages and heights.

Description

technical field [0001] The invention belongs to chairs, in particular to a convenient chair that can be raised and lowered in time. Background technique [0002] At present, the chairs with adjustable seat surface height in the prior art are roughly divided into two types: one is that the lifting mechanism is hydraulic or pneumatic, and this type solves the problem that the height of the seat surface can be adjusted in time. But the disadvantage is that the lifting mechanism is easily damaged after long-term use, the manufacturing cost is high, and the hydraulic oil volatilizes to cause indoor air pollution; the other is a chair with an adjustable seat height used by students in school classrooms and some families. Screws and nuts are used to fix the height of the chair legs to adjust the height of the seat surface, which solves the problems of high manufacturing cost and indoor air pollution caused by volatilization of hydraulic oil, but the disadvantage is that it is too t...

AI Technical Summary

Problems solved by technology

[0002] At present, the chairs with adjustable seat surface height in the prior art are roughly divided into two types: one is that the lifting mechanism is hydraulic or pneumatic, and this type solves the problem that the height of the seat surface can be adjusted in time. But the disadvantage is that the lifting mechanism is easily damaged after long-term use, the manufacturing cost is high, and the hydraulic oil volatilizes to cause indoor air pollution; the other is a chair with an adjustable seat height used by students in school classrooms and some families. Screws and nuts are used to fix the height of the chair legs to adjust the height of the seat surface, which solves the problems of high manufacturing cost and indoor air pollution caused by volatilization of hydraulic oil, but the disadvantage is that it is too time-consuming, laborious and troublesome to adjust the height of the seat surface The height of the user's growth changes or the height of the seat surface cannot be adjusted in time according to the users of different heights, which will cause physical damage to the user, and the screw thread buckle is easily damaged, and there are often dilemmas that cannot be screwed in and cannot be withdrawn.

There are respective shortcomings in the above two situations. At present, the chairs with adjustable seat heights used by students cannot move back and forth to adjust the backrest of the chair, that is, they cannot grow with the height of minors or cannot be adjusted according to users of different heights. Timely adjustment of the distance between the backrest of the chair and the waist will make the user feel very tired and cause physical damage. Not only that, there is no hanger device on the backrest of the chair, and there is nowhere to put the clothes worn outdoors, which is a waste of chairs. The inherent advantage in the air brought by the backrest is extremely inconvenient to use

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