CN2137602Y

CN2137602Y - Adjustable protection device for eyesight

Info

Publication number: CN2137602Y
Application number: CN 92229877
Authority: CN
Inventors: 朱玉柱
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-06
Filing date: 1992-08-06
Publication date: 1993-07-07
Anticipated expiration: 2002-08-06

Abstract

The utility model relates to an eyesight protecting device used for controlling study postures and restricting the distance between books and eyes. The utility model combines an adjustable eyesight protecting device with a stationery box required by a student and uses the present iron stationery box as a fixed base; when the student studies, a spigot on the lower end of the protecting device is inserted in the central position of one face of the box wall closing to the student's body, a stationery ruler is used for restricting the height the student's mouth or the student's lower jaw, and therefore, students with different height read and write through the certain width of the stationery box under the restriction of a T-shaped frame so as to easily control eyesight distance and fall into good study habits. The protecting device can be put in the stationery box to be conveniently carried, is easy for the students to accept and performs the function of myopia prevention.

Description

Adjustable protection device for eyesight

The utility model belongs to schooling apparatus, a kind of device that can control the pupil reading and writing sighting distance.

Many pupils the time can not keep correct read-write posture in study, and the back of a bow sighting distance of bowing is near excessively when especially writing, and suffers from myopia easily, therefore prevents myopia to do from the control sighting distance.In order to address this problem, a kind of " writing case with prevention visual function " arranged (CN2087902U).This writing case can make the student under correct read-write posture, and convenient read-write is though there is certain effect, but because it is limited to make the learning board width with the writing case lid, the hand that the student writes on learning board is subjected to width restriction, especially with big homework book when writing big character, writing to the student makes troubles.

In addition, collapsible support is on the lid edge, and book is near on the bracket edge, and support can only limit the height of head, can not control the distance of writing, and just can not reach the low student of body and control the distance of writing.Another kind of " myopia prevention writing case " (CN2064594U) this writing case can not control the distance of writing.

The purpose of this utility model is to provide a kind of simple vision protection device that adds for the pupil on existing iron writing case.It can make student's convenient read-write under correct read-write posture, limits the distance that books are placed simultaneously, make the student of different heights can reach the suitable reading/writing distance of control, and it is easy to use to put into writing case, makes the student be easy to accept, and plays the effect of pre-myopia prevention.

The scheme of utility model is: by anti-nearly pillar, flexible prop up, the stationery ruler formed.The main plastic production that adopts, there is the dead slot lower end to have socket and telescopic prop one side to have several locating slot upper ends that socket is arranged on anti-nearly pillar top, telescopic prop is adjustable in anti-nearly pillar, controlled by the spring knob on anti-nearly pillar top, constitute T-bar in the socket of the insertion telescopic prop upper end, center of stationery ruler, utilize existing iron writing case to make base, open lid the socket of anti-nearly pillar lower end is inserted the box wall by body one side center vertical fixing, the lid that closes is placed desktop closely at one's side on the edge, stationery ruler (cross bar) is used to limit student's mouth or lower jaw height, when the time spent can not put into writing case with device.

Advantage of the present utility model is that protective device utilizes the iron writing case base that fixes; with the close box body of books upper end; the student who makes different heights is under the T-bar constraint; can make things convenient for reading and writing by the writing case certain width; control sighting distance easily; simple in structure, easy to use, particularly picking up good habits of study to the pupil, the time spent can not put into writing case to protective device easily.

Embodiment below in conjunction with accompanying drawing provides describes in detail.

Accompanying drawing one: the side view that is protective device.

Accompanying drawing two: the front view and the partial sectional view that are protective device.

Embodiment: the socket (1) of anti-nearly pillar (3) lower end is inserted the box wall center vertical fixing of box body by the body one side, short part is in box body, long part is withstood the desktop edge, stationery ruler (8) is inserted formation T-bar in the socket (7), telescopic prop (6) is adjustable in anti-nearly pillar (3), blocked in the telescopic prop one side locating slot (5) by spring knob (4), have several sulculuses (2) to use on the position of anti-nearly pillar (3) and closed lid for reinforcing anti-near pillar.

Claims

A kind of adjustable vision protection device; it comprises anti-nearly pillar, telescopic prop; it is characterized in that: do to constitute T-bar in the socket that cross bar inserts the telescopic prop upper end with the stationery ruler; telescopic prop one side has several locating slots; the flexible adjustable spring knob on anti-nearly pillar top that is subjected to is controlled in anti-nearly pillar, connects with socket type between anti-nearly pillar lower end and the writing case.