CN2155159Y - Health electronic stationery case - Google Patents
Health electronic stationery case Download PDFInfo
- Publication number
- CN2155159Y CN2155159Y CN 93237096 CN93237096U CN2155159Y CN 2155159 Y CN2155159 Y CN 2155159Y CN 93237096 CN93237096 CN 93237096 CN 93237096 U CN93237096 U CN 93237096U CN 2155159 Y CN2155159 Y CN 2155159Y
- Authority
- CN
- China
- Prior art keywords
- box
- lid
- bearing pin
- control circuit
- cassette holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a stationery box which has the function of protecting vision, which comprises a box cover, a box seat, probe rods, a control circuit, a battery box, a pen fixing grid, etc. A semicircular groove on the end part of the box cover and a pin shaft on the side of the box seat make an included angle which is arranged between the box cover and the box seat 150 DEG. A book clamping groove in the box seat and the box cover form a bookshelf. The probe rods which are arranged on both ends of the box seat are provided with an infrared launch pipe and a receiving pipe. An infrared photoelectric principle is used for monitoring viewing distance for controlling reading and writing distance, maintaining the reading and writing distance in a unit of length, maintaining a correct reading and writing posture and protecting vision. The utility model has simple structure, lower power consumption of a circuit and strong anti-interference performance.
Description
The utility model relates to a kind of writing case, particularly a kind of writing case with vision protection effect.
Existing health care writing case is varied, and wherein a kind of electric multi-functional writing case adopts infrared observation to report to the police, and circuit element is various, and power consumption is bigger, poor anti jamming capability, is subject to the ambient light influence and false triggering, false alarm take place.Another kind of health care writing case adopts distance adjustment shaft bar structure, and the user props up the adjusting rod cross bar with forehead and controls reading/writing distance, though simple in structure, changed people's daily habits, always feel inconvenience.
The purpose of this utility model provides a kind of improved electronic health writing case, simple in structure, strong interference immunity.
The purpose of this utility model realizes by following technical solution: lid is opened with cassette holder and is 150 degree; book retaining trough in the cassette holder and lid form bookshelf; adopt infrared electro principle monitoring sighting distance, the reading/writing distance of control eyes remains on about one chi vision protection.It comprises lid, cassette holder, feeler lever, control circuit, battery case, a fixed railing etc., two ends, lid base respectively are provided with a half slot and bearing pin lid fixing lug boss, side two ends of cassette holder respectively are provided with a bearing pin, these two bearing pins are arranged in the half slot on lid base, and the bearing pin lid is being adorned in the bearing pin outer end; Be provided with control circuit box, battery case, two book retaining troughs, a fixed railing in the cassette holder, the left and right end of cassette holder respectively is equipped with a feeler lever, feeler lever is made up of probe, pole and rotating stand, adorning infrared receiver tube in the probe, adorning infrared emission tube in another probe, the circuit board of circuit connection in pole endoporus and control circuit box links.
Control circuit of the present utility model is made of oscillator (A), infrared transmitter (B), infrared radiation receiving circuit (C), decoding phase lock circuitry (D) and warning circuit (E).Open the lid, book is rested in the book retaining trough, against lid, pull out feeler lever to extreme position, S closes a switch
1And S
2When read-write posture is correct, infrared emission tube V
2The infrared ray that sends is by infrared receiver tube V
1Receive, oscillator (A) produces the 40KHZ square-wave pulse signal, through capacitor C
2Coupling, triode V
3Amplify the quasi-sine-wave that obtains 40KHZ ± 5KHZ, pass through capacitor C
3Deliver to the M integrated circuit in the decoding phase lock circuitry.When signal in 40KHZ ± 5KHZ scope, M integrated circuit output low level is by NAND gate D-1, D-2, resistance R
7, capacitor C
7The audio frequency oscillator of forming is not worked light emitting diode V
4Not glittering, alarm TD is sounding not.When read-write posture was incorrect, human body head blocked infrared ray, infrared receiver tube V
1Can not receive from infrared emission tube V
2Signal, the input of the no 40KHZ signal of decoding phase lock circuitry (D), the M integrated circuit is exported high level, by NAND gate D-1, D-2, resistance R
7, capacitor C
7The audio frequency oscillator work of forming produces 1KHZ square wave audio signal, light emitting diode V
4Conducting is glittering, and alarm TD sounding reminds the user to regulate sighting distance, and up to normally, luminous and sounding type is reported to the police and then automatically terminated.In order not influence people around's study and work, can cut-off switch S
2, at this moment have only luminous indication, and do not have sounding alarm.When extraneous infrared signals such as daylight, light or other infrared source by infrared receiver tube V
1After the reception, signal is through capacitor C
2, triode V
3Deliver to the M integrated circuit.Because decoding phase lock circuitry (D) only works to the signal of 40KHZ ± 5KHZ, when input signal was greater than or less than 40KHZ ± 5KHZ, the M integrated circuit was exported high level all the time, light emitting diode V
4TD is failure to actuate with alarm, false alarm can not take place.
The utility model rests book in the book retaining trough, and against lid, cassette holder is 150 degree with the lid of opening, and utilization infrared ray photoelectricity principle monitoring sighting distance is about one chi.It is simple in structure, and is easy to use.Adopt the decoding phase lock circuitry only the signal of 40KHZ ± 5KHZ to be worked, the signal of other frequency of coming from the outside is not played any reaction, false alarm can not take place, reliable operation, interference free performance is splendid, and line component is less, power consumption is lower.
Accompanying drawing 1 is a kind of structural representation of the utility model.
Accompanying drawing 2 is the cutaway view of lid and cassette holder coupling part.
Accompanying drawing 3 is a kind of electrical schematic diagram of the utility model.
With reference to accompanying drawing, lid (1), half slot (2), bearing pin fixing lug boss (3) are an integral body.Cassette holder (4), bearing pin (5), book retaining trough (10) and (11) are an integral body.Above part is all used the ABS plastic injection mo(u)lding.Fixed railing (7) is injection molded with polypropylene.Bearing pin lid (6) is fastened on the bearing pin lid fixing lug boss (3) with tapping screw.Pole adopts metallic rod to make.Rotating stand makes feeler lever (12), (13) be positioned at extreme position, i.e. the optimum reception position.Place four joint No.5 cells in the battery case (9).Infrared receiver tube V
1Model is SH303.Infrared emission tube V
2Model is FH303.Triode V
3Be 9014 type triodes.The M integrated circuit is selected LM567 type integrated circuit for use.NAND gate D-1, D-2, D-3 and D-4 CD4011 type four or two input nand gates.On control circuit box (8) the box face light emitting diode V is set
4, switch S
1And S
2Switch S
1And S
2Select KBB-1 type toggle switch for use.Light emitting diode V
4Select φ 3 light emitting diodes for use, red or green.Alarm TD is FBB φ 20 piezoelectric ceramic pieces.Except infrared receiver tube V
1Infrared emission tube V
2Beyond being contained in the probe, all electrical equipments, circuit board all are enclosed among the control circuit box (8).
Claims (3)
1, a kind of electronic health writing case comprises lid, cassette holder, feeler lever, control circuit, battery case and a fixed railing etc., it is characterized in that:
A) lid (1) two ends, base respectively are provided with a half slot (2) and bearing pin lid fixing lug boss (3), (4) side two ends of cassette holder respectively are provided with a bearing pin (5), bearing pin (5) is arranged in the half slot (2) on lid (1) base, and bearing pin lid (6) is being adorned in bearing pin (5) outer end;
B) be provided with a fixed railing (7), control circuit box (8), battery case (9), two book retaining troughs (10) and (11) in the cassette holder (4), the left and right end of cassette holder (4) is equipped with feeler lever (12), (13) respectively.
2, electronic health writing case according to claim 1 is characterized in that feeler lever (12) or (13) are made up of probe, pole and rotating stand, is adorning infrared receiver tube V in the probe
1, adorning infrared emission tube V in another probe
2, the circuit board of circuit connection in pole endoporus and control circuit box (8) links.
3, electronic health writing case according to claim 1 and 2 is characterized in that control circuit box (8) box face is provided with light emitting diode V
4, switch S
1And S
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237096 CN2155159Y (en) | 1993-06-19 | 1993-06-19 | Health electronic stationery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237096 CN2155159Y (en) | 1993-06-19 | 1993-06-19 | Health electronic stationery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155159Y true CN2155159Y (en) | 1994-02-09 |
Family
ID=33812118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237096 Expired - Fee Related CN2155159Y (en) | 1993-06-19 | 1993-06-19 | Health electronic stationery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155159Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001256A (en) * | 2019-05-07 | 2019-07-12 | 黄家骜 | A kind of Portable water-color paint brush cylinder |
-
1993
- 1993-06-19 CN CN 93237096 patent/CN2155159Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001256A (en) * | 2019-05-07 | 2019-07-12 | 黄家骜 | A kind of Portable water-color paint brush cylinder |
| CN110001256B (en) * | 2019-05-07 | 2024-02-27 | 黄家骜 | Portable watercolor pen container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |