CN201700708U

CN201700708U - Myopia prevention chair

Info

Publication number: CN201700708U
Application number: CN2010202548728U
Authority: CN
Inventors: 韩薇薇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-08
Filing date: 2010-07-08
Publication date: 2011-01-12
Anticipated expiration: 2020-07-08

Abstract

The utility model belongs to daily necessities, and particularly relates to a myopia prevention chair, which comprises a seat (2), legs (1) and a chair backrest (3). A hanger ring (9) is arranged on the lower side of the front of the chair backrest (3), a limit sleeve (4) is arranged on a cross beam (3-1) above the chair backrest (3), a spring limiting stopper (6) is arranged in the middle of the back of the chair backrest (3), a brace hole (6-1) is arranged on the spring limiting stopper (6), a spring base (8) is fixed at the back of the seat (2), one end of a brace (5) is provided with a hook (5-1) which is hooked in the hanger ring (9) while the other end is threaded through the brace limit sleeve (4) and the brace hole (6-1) on the spring limiting stopper (6) to be further fixedly connected to the upper end of a tension spring (7), and the lower end of the tension spring (7) is fixedly connected with the spring base (8). The myopia prevention chair for students is simple in structure and low in cost, can be mounted during manufacturing, and can also be modified on the base of an old chair.

Description

The myopia prevention seat

Technical field

The utility model belongs to small stores, particularly a kind of myopia prevention seat.

Background technology

At present, the student does one's assignment when reviewing lessons at school or at home, and used seat is general chair, students' union health independently do not occur to desk face tilt phenomenon, and especially students in middle and primary schools are even more serious, if things go on like this, will cause hypometropia or hunchback, influence the healthy of student.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, at any time the myopia prevention seat of rectifying sitting posture of student.

The technical scheme that the utility model technical solution problem adopts is: the myopia prevention seat comprises seat support, the chair leg, chair back, be characterized in below the front of chair back, establishing a hook ring, on the chair back upper cross-beam, be provided with stop collar, the place establishes a spring positive stop in the middle of the chair back back, the spring positive stop is provided with the braces hole, fix a spring base in the seat support back, braces one end is established and is hooked in the hook ring, the other end passes the braces stop collar fixedlys connected the fixedly connected spring base in tension spring lower end with the braces hole on the spring positive stop with the tension spring upper end.

The beneficial effects of the utility model are: the myopia prevention seat is to the student, and especially students in middle and primary schools' myopia prevention eye is effective, myopia prevention seat simple in structure, and cost is low, installs in the time of can making seat, also can transform installation on old seat.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is a myopia prevention seat structure chart.

Among the figure, 1-chair leg; The 2-seat support; The 3-chair back; 3-1-chair back crossbeam; The 4-stop collar; The 5-braces; The 5-1-hook; 6-spring positive stop; 6-1-braces hole; The 7-tension spring; The 8-spring base; 9-links up with ring;

The specific embodiment

Embodiment, with reference to accompanying drawing 1, four chair legs, the 1 top fixedly seat support 2 of myopia prevention seat, one side upper fixed chair back 3 of seat support 2, the place is provided with braces stop collar 4 in the middle of on chair back crossbeam 3-1, below chair back 3 fronts, be fixed with hook ring 9, the place is provided with spring positive stop 6 in the middle of the back of chair back 3, be provided with 6-1. fixing spring seat 8 on the trailing flank of seat support 2 in braces hole on the positive stop 6, with a wide braces 5, pass the braces hole 6-1 on stop collar 4 and the spring positive stop 6, braces 5 one ends are provided with hook 5-1 and hang in the hook ring 9, the other end is fixed on the upper end of tension spring 7, and the lower end of tension spring 7 is fixed on the spring base 8.

During use, braces 5 tiltedly is enclosed within people's back, when the person turns forward, tension spring 7 stressed stretchings, braces 5 limits human body and no longer leans forward when tension spring 7 upper ends withstand on the positive stop 6, warns the people to keep sitting posture, to prevent hypometropia.

Claims

1. myopia prevention seat, comprise seat support (2), chair leg (1), chair back (3), it is characterized in that establishing a hook ring (9) in the below, front of chair back (3), on chair back (3) upper cross-beam (3-1), be provided with stop collar (4), the place establishes a spring positive stop (6) in the middle of chair back (3) back, spring positive stop (6) is provided with braces hole (6-1), fix a spring base (8) in seat support (2) back, braces (5) one ends are established hook (5-1) and are hooked in the hook ring (9), the other end passes braces stop collar (4) fixedlys connected the fixedly connected spring base in tension spring (7) lower end (8) with the braces hole (6-1) on the spring positive stop (6) with tension spring (7) upper end.