CN2267008Y

CN2267008Y - Alarming device for student's sitting position

Info

Publication number: CN2267008Y
Application number: CN 96202971
Authority: CN
Inventors: 胡乃琴
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-17
Filing date: 1996-02-17
Publication date: 1997-11-12
Anticipated expiration: 2006-02-17

Abstract

The utility model belongs to teaching articles. The utility model is characterized in that the double earphones and the earphone bow spring can be adjusted freely, and a highly reliable self locking switch that is separated from earphone handles is adopted as a power switch. When the sitting posture of a student is not correct, the utility model sends out 'alarm words '. The utility model is not the product that can sends out toy like musical sounds which distract a person's attention. The electric circuit of the utility model is composed of an alarm words chip, a buzzer, a self locking switch and a mercury switch. The utility model has the advantage of convenient use.

Description

The sitting posture of student attention device

This utility model belongs to realia.

Student's reading and writing sitting posture is low excessively, and not only influence vertebra and grow, and also very harmful to vision.Commercially available at present " vision protector " class is proofreaied and correct the product of sitting posture, adopts single earpiece and only sends the music of the toyization of making us diverting attention, and switch is located at earphone last, poor reliability, earphone bow spring also therefore length fix, can not be because of people's regulated at will, it is not enough that result of use seems.

This utility model purpose is to develop biphone, but earphone bow spring free adjustment, on and off switch make into reliability high and with earphone isolating self-lock switch.When sitting posture of student was incorrect, earphone sent " caveat " that is beneficial to students psychology development, rather than the divert attention music of toyization of simple making us.

The utility model proposes by buzzer (1), can send the chip (2) of " caveat ", with earphone separating and being contained in self-lock switch (3) on the earphone, mercoid switch (4), earphone outer covering (5), earphone is (6) and can bend the biphone attention device structure that spring (7) is formed by freely regulated earphone.

This utility model accompanying drawing is as follows:

Fig. 1 is the single earpiece structure chart

Fig. 2 is a circuit diagram.

Identifier is as follows among the figure:

1, buzzer 5, earphone outer covering

2, chip 6, earphone handle

3, self-lock switch 7, earphone bow spring

4, mercoid switch

The student sits up straight and wears, and biphone fastens two ears, and earphone bow spring is just in time by crown center line and two have sharp ears The intersection point of line. Press self-lock switch (3), when student's head leans forward, eye and paper distance are less than a chi or a left side During right torticollis, mercoid switch (4) is opened, and sends caveat in the earphone. Not the time spent, click again self-locking and open Close.

The utility model advantage is energy automatic straightening writing posture, and pre-myopia prevention is easy to use, does not divert attention.

Embodiment

Frame for movement is seen Fig. 1, and circuit is seen Fig. 2, and caveat is 5202H with " please sit up straight ", chip model, and button cell is contained in the printed board of soft packaged chip, and earphone handle, earphone outer covering adopt fine ACS casting.

Claims

1, a kind of sitting posture of student attention device, it is characterized in that by buzzer (1), can send the chip (2) of caveat, separate and be contained in the self-lock switch (3) on the earphone with the earphone handle, mercoid switch (4), earphone outer covering (5), earphone is (6) and can bend the biphone attention device that spring (7) is formed by freely regulated earphone.