Lifter convenient for adjusting height of student seat and improving safety

Abstract

The invention discloses a lifter convenient for adjusting height of a student seat and improving safety. The lifter comprises a first connecting piece and a groove, the groove is formed in the surface of the first connecting piece, first sliding grooves are symmetrically formed in the surface of the first connecting piece, cylinders are cooperatively mounted on the surfaces of the two first sliding grooves, a second connecting piece is installed on the surface of each cylinder in a matched mode, a third connecting piece is installed on the surface of the second connecting piece in a matched mode, the first connecting piece and the third connecting piece are both in a U shape, and the third connecting piece and the cylinders are installed in a matched mode. The height of the seat can be adjusted within a certain range according to the student's own situation, adjustment can be carried out only by shifting the two connecting blocks, operation is convenient, the adjusted state can be locked, the situation that a student adjusts the height of the seat by self, and consequently the student is pinched is avoided, safety is improved, the structure is simple, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of seats, in particular to a lifter which is convenient for adjusting the height of student seats and improving safety. Background technique [0002] At present, most of the students' time is spent in the school, and most of the time at school is spent on the seat, so the seat is one of the indispensable learning tools for the students. The quality of the seat Directly affect the health of students, especially primary school students, when they are growing up, the comfort of the seat directly affects the learning efficiency of students and the growth and development of the body. [0003] Students who use too short or too small chairs are most likely to sit incorrectly and endanger their health: the desk is not high enough, and it is easy to hunched over or even lie on the desk when reading and writing; Not only will it cause students to suffer from myopia, it will inevitably lead to curvature of the spine, ...

AI Technical Summary

Problems solved by technology

[0003] Students who use too short or too small chairs are most likely to sit in an incorrect posture and endanger their health: the desk is not high enough, and it is easy to hunched over or even lie on the desk when reading and writing; Not only will it cause students to suffer from myopia, it will inevitably lead to curvature of the spine, deformation, hunchback, etc., and it will also affect the students' lungs, blood circulation, breathing and digestive functions. The height is generally fixed and some can be adjusted. The common ones are hand-cranked and screw-lifted desks and chairs. These designs are inconvenient to operate, and students will adjust them by themselves, which is prone to the risk of hands being pinched. For this reason, we Propose a lifter that facilitates height adjustment of student seats and enhances safety

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