Lifting device of learning chair and learning chair

Abstract

The invention provides a lifting device of a learning chair and the learning chair. The lifting device of the learning chair comprises a height adjusting locating device of a seat and a chair back lifting device; a main pipe is a supporting structure of the learning chair, and a chair leg component, a seat component and a chair back component are connected from bottom to top, wherein the seat component is connected to the main pipe by virtue of the height adjusting locating device of the seat and is capable of lifting along the main pipe; and the chair back component is connected to the main pipe by virtue of the chair back lifting device and is also capable of lifting along the main pipe. The lifting device of the learning chair, which adopts pure mechanical lifting, is high in reliability and safety; the chair back and the seat can be independently adjusted; a chair back sectional material can contract into the main pipe, so that beautiful appearance is guaranteed and a space is diminished; the learning chair is simple in lifting and resetting operations, so that the learning chair has a certain growth performance; the learning chair is long in service life and high in comfort; and the learning chair is applicable to students at various ages and more people.

Description

technical field [0001] The invention relates to a convenient adjustable lifting device for a learning chair, in particular to a learning chair height adjusting lifting device suitable for children and a learning chair using the device. Background technique [0002] Learning chairs are an essential tool for children to study. Most of the learning chairs currently on the market can also adjust the height of the backrest, but they are basically devices in which the back of the chair slides and lifts on the main tube to be positioned with a bayonet pin, which is inconvenient to operate. And because the height of the supervisor cannot be stretched, when the learning chair is adjusted by the minimum seat height and the minimum back height, the height of the supervisor is constant, and the higher supervisor affects the parents to guide the children to learn, and it is not beautiful, and also affects the installation. [0003] At present, most of the learning chairs on the market ca...

AI Technical Summary

Problems solved by technology

[0002] Learning chairs are an essential tool for children to learn. Most of the learning chairs on the market can also adjust the height of the backrest, but most of them are devices in which the back of the chair slides and lifts on the main tube and is positioned with a bayonet pin, which is inconvenient to operate.

And because the height of the supervisor cannot be stretched, when the learning chair is adjusted according to the minimum seat height and the minimum back

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