CN2215742Y

CN2215742Y - Speech sound warning device for nearsight

Info

Publication number: CN2215742Y
Application number: CN 94239021
Authority: CN
Inventors: 王浩
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-11
Filing date: 1994-07-11
Publication date: 1995-12-20
Anticipated expiration: 2004-07-11

Abstract

The utility model discloses a speech sound warning device for nearsightedness used for correcting the nearsightedness or hunchback caused by the incorrect sitting posture when students study. The speech sound warning device for nearsightedness is mainly composed of a casing, a reminding circuit and a trigger switch, wherein, hooks are arranged on the casing and can be hung on ears, and the trigger switch is a mercury switch. When the utility model is hung on the ears, and the head of a wearer lowers to a certain degree, the trigger switch is turned on, and a speech sound sheet sends out specified programmed language to remind the wearer to sit straight. The utility model has certain practical significance for supervising and urging students to keep a correct writing posture, protecting eyes and keeping health.

Description

Speech sound warning device for nearsight

The utility model relates to a kind of speech prompting device that causes the myopia or the rudder back of the body when being used to proofread and correct the student and learning because of abnormal sitting posture.

The teenager is when operation or reading, because self-control is poor, father and mother or teacher can worry because abnormal sitting posture causes the myopia or the rudder back of the body, Chinese patent CN92225040.5 discloses a kind of myopia prevention desk lamp, it is that as abnormal sitting posture, then desk lamp extinguishes automatically when using desk lamp to write, also have anti-nearly pen etc. in addition, but these inventions can not directly be controlled to sitting posture.

The purpose of this utility model is that a kind of voice myopia reminiscences of writing posture of correcting in the angle position of head when writing by the control people is provided in order to address the above problem.

In order to achieve the above object, the designed voice myopia reminiscences of the utility model mainly is made up of housing, alert circuit and trigger switch, alert circuit and trigger switch are located in the housing, housing is provided with and can makes housing hang over hangers hook on the ear, trigger switch is the mercury cut-off that make break contact is come in a kind of position of rolling by mercury bead, this mercury cut-off is contained in the housing really on the allocation, and after hanging on the ear, the mercury bead in the mercury cut-off rolls with people's head inclination angle firmly.Thereby with control contact duty.Mercury cut-off is connected with alert circuit, alert circuit mainly is made up of voice sheet, power supply, loudspeaker, transistor and RC oscillatory circuit, the signal input part of voice sheet communicates with power supply by mercury cut-off, the signal output part of voice sheet amplifies the back by the transistor signal and is connected with loudspeaker, obtains the designed voice myopia reminiscences of the utility model thus.

The resulting voice myopia of the utility model reminiscences; be worn over during use on the head ear; when people's head during lowly greater than a certain angle; the trigger switch conducting; the voice sheet sends the language that regulation is provided with, and is just sitting to remind, and can be controlled the myopia and the rudder back of the body at alliance's bud state by the timely correction of sitting posture like this; make student oneself supervise oneself, so it is for supervising the student correctly to write, protect eyes and healthyly having certain realistic meaning.

Fig. 1 is a voice myopia reminiscences structural representation;

Fig. 2 is the alert circuit schematic diagram.

In conjunction with the accompanying drawings the utility model is further described below by embodiment:

As shown in Figure 1, the described voice myopia of present embodiment reminiscences mainly is made up of housing 1, alert circuit 2 and mercury cut-off 3, alert circuit 2 and mercury cut-off 3 are located in the housing 1, and housing 1 is provided with hangers hook 4, and the curve shape of hangers hook 4 echoes mutually with auricle.As shown in Figure 2, alert circuit mainly is made up of voice sheet 5, power supply 6, loudspeaker 7, transistor 8, RC oscillatory circuit 9 and power switch 10, the signal input part of voice sheet is connected with power switch 10 by mercury cut-off 3, RC oscillatory circuit 9 links to each other with the frequency input end of voice sheet 5, and the signal output part of voice sheet 5 amplifies the back by transistor 8 signals and is connected with loudspeaker 7.Form in the non-fragile colored plastic of this housing 1 usefulness, finished product is worn on the head ear, during use, turns on the power switch 10, when people's head during lowly greater than 30 °, mercury cut-off 3 is connected, and power supply 6 is added on the voice sheet 5, and voice sheet 5 is language integrated circuit, after feeding power supply, just " note that myopia, fast just the seat " by the loudspeaker 7 output sounds.Hear prompting correcting sitting postures immediately, raise one's head that this moment, mercury cut-off disconnected, voice signal stops, and constantly reminds thus, reaches the purpose that sitting posture is rectified all the time.

Claims

1, a kind of language myopia reminiscences, it comprises housing, alert circuit and trigger switch, alert circuit and trigger switch are located in the housing, it is characterized in that housing is provided with the extension that housing hang to be foretold on ear and foretells tack, and described trigger switch is the mercury cut-off that make break contact is come in the position of the rolling by mercury bead.

2, language myopia reminiscences according to claim 1, it is characterized in that described alert circuit mainly is made up of voice sheet, power supply, loudspeaker, transistor and RC oscillatory circuit, the signal input part of voice sheet communicates with power supply by mercury cut-off, and the signal output of language sheet is amplified the back by the transistor signal and is connected with loudspeaker.