CN201426511Y

CN201426511Y - Learning desk with myopia prevention functional device

Info

Publication number: CN201426511Y
Application number: CN2009201565719U
Authority: CN
Inventors: 李涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-03-24
Anticipated expiration: 2019-06-25

Abstract

The utility model discloses a learning desk with a myopia prevention functional device, which comprises desk legs, a desktop and a myopia prevention functional device. The myopia prevention functionaldevice consists of a sensor, a main controller circuit board and a vibrating pen cap, the sensor is connected with an input circuit of the main controller circuit board, the vibrating pen cap is connected with an output circuit of the main controller circuit board, and the main controller circuit board is arranged on a vertical plate disposed on one side of the desktop. The learning desk with a myopia prevention functional device is simple in structure and convenient in use, when a student is oblique in posture or a distance between the head of the student and a book is too short during reading or writing, the myopia prevention functional device can fast acquire body posture changing signals of the student, and then prompts the student to keep accurate sitting postures and appropriate distances between eyes and books through vibrating the pen cap and changing light of a desk lamp, thereby achieving the effect of effectively preventing myopia.

Description

A kind of study table that has pre-myopia prevention functional device

Technical field

The utility model relates to the message identification technical field, is meant a kind of study table that has pre-myopia prevention functional device especially.

Background technology

Because students in middle and primary schools' learning tasks are heavy, a little less than the self-control, reading or when writing the usually automatic head distance books that make near excessively, form bad habits such as close eye or posture be crooked easily, this is a major reason that causes numerous students in middle and primary schools' hypometropia.Existing myopia prevention desk for study mainly is by changing structures such as table leg height or desktop angle of inclination and increase myopia-preventing frame, realizing helping the function of the pre-myopia prevention of student.But this existing myopia prevention desk for study is difficult to control bad habit such as student's writing posture and head distance books are near.

The utility model content

Technical problem to be solved in the utility model provides a kind of.

In order to address the above problem, the utility model is taked following technical scheme:

A kind of study table that has pre-myopia prevention functional device comprises table leg, and desktop also comprises a pre-myopia prevention functional device; Described pre-myopia prevention functional device is by sensor, and the main controller circuit plate shakes the pen cap and forms, and the input circuit of sensor and main controller circuit plate links, and the output circuit of the vibrations pen cap and main controller circuit plate links; Above-mentioned main controller circuit plate is installed on the riser of described desktop one side setting.

Described pre-myopia prevention functional device also comprises a desk lamp, and the gauge tap of desk lamp links by the output circuit of lead and described main controller circuit plate.

The described vibrations pen cap is the plastic casing of an animal head moulding, and plastic casing steps up mouth by penholder and inner chamber is formed; Vibrating motor and button cell are set in the described inner chamber, and the control end of vibrating motor links by the output circuit of lead and described main controller circuit plate.

Described main controller circuit plate is by operational amplifier, IC chip, and triode, relay is formed; The input of operational amplifier links to each other with the output of described sensor, and output links to each other with the input pin of IC chip; IC chip and triode are formed the drive circuit of relay.

Described sensor is a Thermoelectric Infrared Sensor.

The beneficial effects of the utility model are: the study table structure that has pre-myopia prevention functional device that the utility model relates to is simple, easy to use; When student reading or when writing during the crooked or head distance books hypotelorism of posture, the pre-myopia prevention functional device that the utility model is provided with can be pounced on fast and grasp student's body gesture variable signal, in time by pen cap vibration and desk lamp light change point out the student keep correct sitting posture and with eye distance from, reach the effect of myopia prevention effectively in advance.

Description of drawings

Fig. 1 is the structural representation that has the study table of pre-myopia prevention functional device among the embodiment;

Fig. 2 is the main controller circuit plate electrical schematic diagram that has the study table of pre-myopia prevention functional device among the embodiment;

Fig. 3 is the control flow chart that has the study table of pre-myopia prevention functional device among the embodiment;

The specific embodiment

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, a kind of study table that has pre-myopia prevention functional device comprises table leg 1, desktop 2, and by sensor 3, main controller circuit plate 4, the pre-myopia prevention functional device that the vibrations pen cap 5 is formed; Sensor 3 is installed on the main controller circuit plate 4 and links with the input circuit of main controller circuit plate 4; The sensor 3 that the utility model adopts is a Thermoelectric Infrared Sensor, and its window passband is 7-14 μ m, is used for human detection, and it is not very high that its sensitivity requires, and can not be subjected to other people interference in use.The vibrations pen cap 5 is the plastic casing of an animal head moulding, plastic casing steps up mouth by penholder and inner chamber is formed, vibrating motor and button cell are set in the inner chamber, the control end of vibrating motor links by the output circuit of lead and described main controller circuit plate 4, can realize that by two ears pushing the animal head penholder of plastic casing steps up opening of mouth and steps up common study penholder, can soft vibration send prompting when the vibrating motor in the inner chamber receives control signal to the student.One desk lamp 6 can also be set on the desktop 2, and the gauge tap of desk lamp 6 links by the output circuit of lead and described main controller circuit plate 4.Main controller circuit plate 4 is installed on the riser 21 that described desktop 2 one sides are provided with, and as shown in Figure 2, main controller circuit plate 4 is by operational amplifier 41, IC chip 42, and triode 43, relay 44 is formed; The input of operational amplifier 41 links to each other with the output of described sensor 3, and output links to each other with the input pin of IC chip; IC chip 42 and triode 43 are formed the drive circuit of relays 44, realize the folding of the conversion control relay 44 of sensor 3 output signals.

As shown in Figure 3, when student 7 reading or when writing during the crooked or head distance books hypotelorism of posture, sensor 3 can be pounced on fast and grasp student's body gesture variable signal, main controller circuit plate 4 receives sensor 3 output signals, send the control signal of the vibration pen cap 5 and desk lamp 6, by pen cap vibration 5 or desk lamp 6 light change point out the student keep correct sitting posture and with eye distance from, reach the effect of myopia prevention effectively in advance.

Claims

1, a kind of study table that has pre-myopia prevention functional device comprises table leg, and desktop is characterized in that, also comprises a pre-myopia prevention functional device; Described pre-myopia prevention functional device is by sensor, and the main controller circuit plate shakes the pen cap and forms, and the input circuit of sensor and main controller circuit plate links, and the output circuit of the vibrations pen cap and main controller circuit plate links; Above-mentioned main controller circuit plate is installed on the riser of described desktop one side setting.

2, the study table that has pre-myopia prevention functional device according to claim 1 is characterized in that, described pre-myopia prevention functional device also comprises a desk lamp, and the gauge tap of desk lamp links by the output circuit of lead and described main controller circuit plate.

3, the study table that has pre-myopia prevention functional device according to claim 1 is characterized in that, the described vibrations pen cap is the plastic casing of an animal head moulding, and plastic casing steps up mouth by penholder and inner chamber is formed; Vibrating motor and button cell are set in the described inner chamber, and the control end of vibrating motor links by the output circuit of lead and described main controller circuit plate.

4, the study table that has pre-myopia prevention functional device according to claim 1 is characterized in that, described main controller circuit board is by operational amplifier, IC chip, and triode, relay is formed; The input of operational amplifier links to each other with the output of described sensor, and output links to each other with the input pin of IC chip; IC chip and triode are formed the drive circuit of relay.

5, the study table that has pre-myopia prevention functional device according to claim 1 is characterized in that, described sensor is a Thermoelectric Infrared Sensor.