CN2877493Y - Light control curtain - Google Patents
Light control curtain Download PDFInfo
- Publication number
- CN2877493Y CN2877493Y CN 200620039590 CN200620039590U CN2877493Y CN 2877493 Y CN2877493 Y CN 2877493Y CN 200620039590 CN200620039590 CN 200620039590 CN 200620039590 U CN200620039590 U CN 200620039590U CN 2877493 Y CN2877493 Y CN 2877493Y
- Authority
- CN
- China
- Prior art keywords
- light
- electromagnetic relay
- curtain
- triode
- operated
- 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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- Power-Operated Mechanisms For Wings (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model relates to a light-operated curtain, comprising a guide rail, sliding curtain cloth hanged on the guide rail, and an electric mechanism device which drags the curtain cloth. The electric mechanism device is comprised of a dragline, a pulley block, a motor, and a motor working circuit, characterized in that the device also comprises photoconductive resistances, triodes and electromagnetic relays, and a light-operated circuit comprised of control power, wherein the emitting electrode of the triode is connected with the minus electrode of the power, the base electrode of the triode is connected with a photoconductive resistance, the collecting electrode is connected with an electromagnetic relay, both the photoconductive resistance and the electromagnetic relay are connected to the positive electrode of the control power, the electromagnetic switch contact point of the electromagnetic relay is connected into the motor working circuit. The utility model has the advantages of simple structure and automatic control of pulling up the curtain cloth when the outdoor light is too strong.
Description
Technical field
The utility model relates to photoelectricity automatic control technology field, relates in particular to a kind ofly to control curtain automatically by light.
Background technology
Along with the progress of society and the raising of quality of life, people are when requiring curtain attractive in appearance, and are also more and more higher to the requirement of the serviceability of curtain.The curtain in past all is a hand pulling type, and not only effort, and curtain is damaged easily, can not adapt to the requirement of the modern life.To this, the someone has invented electrically driven curtain, though that electrically driven curtain is compared hand-operated curtain is more convenient to use, the shortcoming that exists also is clearly, is exactly or needs artificial controlling.Such as, the student classroom be to the light requirement than higher place, but existing hand-operated curtain and electrically driven curtain all can not well be closed curtain according to the light situation automatically, thereby cause indoor light too strong, blackboard is reflective easily, finally influences student eyesight and the quality of giving a lesson.
The utility model content
Technical problem to be solved in the utility model provides a kind of light-operated curtain, uses this light-operated curtain, and when outdoor light was too strong, this light-operated curtain cloth of drawing the curtain together automatically shut out the light, thereby overcomes the deficiency that prior art exists.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of light-operated curtain, by guide rail, be hung out in slidable casement on the guide rail, the electromechanical device of traction casement constitutes, described electromechanical device is by pull rope, pulley, motor, the machine operation circuit constitutes, it is characterized in that: also comprise by photo resistance, triode, electromagnetic relay, the light-operated circuit that the control power supply constitutes, wherein the emitter stage of triode connects the negative pole of power supply, and the base stage of triode connects photo resistance, and the colelctor electrode of triode connects electromagnetic relay, photo resistance and electromagnetic relay all are connected to the positive pole of control power supply, and the electromagnetic switch contact of electromagnetic relay is inserted in the machine operation circuit.
Adopt technique scheme, owing to adopt photo resistance in the light-operated circuit of this light-operated curtain, just having begun does not almost have electric current in the control circuit, in case but strong illumination to photo resistance the time, the resistance of photo resistance descends rapidly, and the electric current in the control circuit is just big.After electric current amplifies through triode, just can electromagnetic relay work, the electromagnetic switch closing of contact makes whole machine operation circuit form path, machine operation, the traction casement is pulled on, when casement pull on fully cover photo resistance after, the photo resistance resistance rises, electric current diminishes in the control circuit, electromagnetic relay quits work, and the electromagnetic switch contact disconnects, and motor stops to draw casement.Therefore, the utility model adopts simple structure, has when outdoor light is too strong, controls the advantage of the cloth of drawing the curtain together automatically.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
The specific embodiment
A kind of as shown in Figure 1 light-operated curtain, by guide rail 1, casement 2, electromechanical device 3 and light-operated circuit 4 constitute, casement 2 upper ends have some collars 21, and these collars 21 are enclosed within casement 2 is hung out on the guide rail 1, and can be along the smooth back and forth slip of guide rail 1.Electromechanical device 3 is made of pull rope 31, pulley 32, motor 33, machine operation circuit 34 (as shown in Figure 2), wherein, motor 33 is forward and reverse motor, pulley 32 is fixed on guide rail 1 one ends, motor 33 is fixed on the other end of guide rail 1, pull rope 31 is around on the belt wheel 331 that is tightened in pulley 31 and motor 33, and that collar 21 of curtain 1 termination ties up on the pull rope 31.
As shown in Figure 2, photo resistance 41, triode 42, electromagnetic relay 43, control power supply 44 have constituted light-operated circuit 4, wherein, the emitter stage of triode 42 connects the negative pole of control power supply 44, the base stage of triode 42 connects photo resistance 41, the colelctor electrode of triode 42 connects electromagnetic relay 43, and photo resistance 41 and electromagnetic relay 43 all are connected to the positive pole of control power supply 44, and the electromagnetic switch contact 431 of electromagnetic relay 43 is inserted in the machine operation circuit 34.34 except that electromagnetic switch contact 431 and motor 33 in the machine operation circuit, also contains protective resistance 341 and working power 342.Above-mentioned control power supply 44 and working power 342 all can be by obtaining after the civil power transformation.In addition, when this light-operated curtain was installed, its photo resistance 41 should be installed in the position that can accept sunlight and be blocked by casement when casement is pulled on.
Claims (1)
1, a kind of light-operated curtain, by guide rail, be hung out in slidable casement on the guide rail, the electromechanical device of traction casement constitutes, described electromechanical device is by pull rope, pulley, motor, the machine operation circuit constitutes, it is characterized in that: also comprise by photo resistance, triode, electromagnetic relay, the light-operated circuit that the control power supply constitutes, wherein the emitter stage of triode connects the negative pole of power supply, and the base stage of triode connects photo resistance, and the colelctor electrode of triode connects electromagnetic relay, photo resistance and electromagnetic relay all are connected to the positive pole of control power supply, and the electromagnetic switch contact of electromagnetic relay is inserted in the machine operation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039590 CN2877493Y (en) | 2006-02-20 | 2006-02-20 | Light control curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039590 CN2877493Y (en) | 2006-02-20 | 2006-02-20 | Light control curtain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2877493Y true CN2877493Y (en) | 2007-03-14 |
Family
ID=37859915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039590 Expired - Fee Related CN2877493Y (en) | 2006-02-20 | 2006-02-20 | Light control curtain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2877493Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349063A (en) * | 2017-09-13 | 2017-11-17 | 孙志桂 | Mother-and-child nursing bed |
-
2006
- 2006-02-20 CN CN 200620039590 patent/CN2877493Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349063A (en) * | 2017-09-13 | 2017-11-17 | 孙志桂 | Mother-and-child nursing bed |
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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 |