CN2754921Y

CN2754921Y - Anti-glare automatic light barrier

Info

Publication number: CN2754921Y
Application number: CN 200420047484
Authority: CN
Inventors: 刘春芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-30
Filing date: 2004-03-30
Publication date: 2006-02-01
Anticipated expiration: 2014-03-30

Abstract

The utility model relates to an anti-glare automatic light barrier device, which relates to the fields of light, electronics and machinery. A polarity-reversing switch circuit of a light-control power supply is composed of two light sensitive tubes which are matched with a small light barrier plate with a notch inside a machine shell by the device. The positive rotation, the reverse rotation and the stop of an electric machine are controlled by tracking a light source at the notch point of the small light barrier plate. A rotary handle of a driving shaft after three-step speed reduction is matched with a resetting limit switch to realize automatic resetting stand-by without light and automatic light barrier with light. The tracking of the small plate with the notch to the light source and the tracking of a light band barrier plate on a driving shaft rod to the light source are caused to be operated synchronously by the transmission of a machinery mechanism simultaneously. A glare light source is reduced to gentle light by the light band barrier plate to avoid occurring accidents for drivers because of strong light glare and unclear sight line. A nervous mental state caused by the strong light glare and the unclear sight line and pessimal stimulation to eyes by frequent light and dark contrast are also mitigated simultaneously.

Description

Anti-dazzle automatic light stopper

Technical field

The utility model relates to light, electronics, these three fields of machinery, and it is can be in the light automatically for chaufeur provides a kind of, automatic tracking, automatically reset and can make high light be kept to the device of fill light.

Background technology

For a long time; in vehicle '; big light when meeting sunshine and nighttime meeting; usually can stimulate driver's eyes shed tears and sight line when unclear because of neurolysis that anxiety caused; this situation perplexs and is injuring the physical and mental health of chaufeur all the time; and also caused a lot of traffic accidents thus, therefore, design one and prevent to dazzle the eyes the device that is in the light automatically imperative.At first wanting clear and definite automatically resets when unglazed, there is the light time to be in the light automatically, therefore the polarity switch circuit that needs a kind of power supply that changes because of having or not of light, produce at present the motor drive integrated circuit STK6962 that introduces as the 196th example in " integrated circuit emergency repair skill 333 examples commonly used both at home and abroad " of polarity converter ic, 19 examples in " classical smart circuit 300 examples ", integrated circuit BH-SK-1, also has the circuit of forming by discrete component, commutating circuit as the 91st routine light-operated motor of introducing, and the motor reversing circuit that is connected into of the bridge connection of introducing among " transistor circuit " two Fig. 8-57, it all is the polarity switching at representative type motor two ends, BH-SK-1 can accomplish that light causes the polarity conversion of power supply in these circuit, but the state that does not stop, thereby can not utilize these characteristics that light source is followed the tracks of, other circuit will reach these characteristics all will run into more difficulty.

Summary of the invention

The purpose of this utility model provides a kind of chaufeur meets strong illumination when travelling, cause blurred vision, observe under the disadvantageous situation, the needed device of dazzling the eyes and being in the light automatically of preventing, the purpose of this utility model is achieved in that is fixing the big plate that is in the light on the drive shaft rod on the casing frame, big front edge of board is by the axle bonded assembly band plate that is in the light, the two ends of draw bar are connected on the axle of band plate axle and band plate adjustment disk, more than constitute light-baffling device, casing is provided with lifter and pitch angle adjuster and is connected on the adapter plate; Constitute triple reduction gear by electrical motor and gear in the casing, the limit switch of axle drive shaft swing handle and both sides constitutes the operating range device of axle drive shaft, constitutes recloser by the swing handle and the limit switch that resets; Between axle drive shaft driven gear and the platelet driven wheel, by the intermediate gear interlock, tooth bar interlock on the platelet driven wheel and the platelet that is in the light, more than constitute synchronizer gear, two photo-transistors on the breach of the platelet that is in the light, protrusion and the back electro-optical package constitute the tracking apparatus of platelet to light source that be in the light; The arc gear wheel interlock of middle driven gear and bottom band cylinder body, spring in the cylinder body is pressed on the cylinder of photoelectricity frame, cooperate the location by projection in the cylinder body with the cylinder groove, photoelectricity frame axle is arranged on both sides to be had on the U-shaped frame of groove, withstand on U-shaped frame bottom by plus-minus screw, more than constitute photosensitive tube to the synchronous device of the platelet that is in the light and the setting device of photoelectricity frame, be provided with indicator cock and power supply indicator cock round the clock by flexible cord bonded assembly Electronic Control Box, voltage-stabilized power supply circuit is arranged in the box, also have polarity switch circuit by the power supply of light guide, the high light circuit, low light level circuit and strong and weak light change-over circuit.

Core of the present utility model is the polarity transfer problem that solves light-operated power supply, scheme is as follows: in two identical light-controlled switching circuits, valve resistance is equated, the positive pole of power supply is received on the open contact of the normally closed contact of first relay and second relay, negative pole is received on first relay normally open contact and the second relay normally closed contact, at this moment pass the positive pole of coming by normally closed contact on the common junction of first relay, what the common junction of second relay transmitted is negative pole, when light shines two photosensitive tubes, make two switch saturation conductions, during the adhesive simultaneously of two relays, on the common junction of first relay, the positive pole of normally closed contact is disconnected the negative pole of receiving open contact.On the common junction of second relay, the negative pole of normally closed contact disconnects, be connected to the positive pole of open contact, the polarity of power supply thereby conversion, at this moment as blocking second photosensitive tube, cause second relay to discharge the positive pole that its common junction disconnects open contact, be returned to the negative pole of normally closed contact, thereby all negative pole on the common junction of two relays, obviously, sort circuit can be controlled the polarity conversion of power supply very easily, and exportable same polarity, and the power supply free of losses, can make numerous and diverse motor commutation become easy, quick.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is mechanical control box of the present utility model and light-baffling device outside drawing.

Fig. 2 is the schematic circuit diagram of Electronic Control Box.

Fig. 3 left side is a relay J ₁, right side relay J ₂Interconnecting wiring diagram.

Fig. 4 is circuit board feature distribution graph and circuit substrate figure.

Fig. 5 is a relay J ₃Interconnecting wiring diagram.

Fig. 6, Fig. 7, Fig. 8, Fig. 9 are mechanical drive and part photoelectricity static structure scheme drawings in the casing.

Fig. 6 is a birds-eye view, and Fig. 7 is a front elevation, and Fig. 8 is a lateral plan, and Fig. 9 replenishes front elevation.

Figure 10 is the casing birds-eye view, and Figure 11 is the cabinet cover birds-eye view, and Figure 12 is casing, cabinet cover lateral plan.

Figure 13 is cabinet cover and driving pedestal birds-eye view.

Figure 14 is cabinet cover and driving pedestal lateral plan.

Figure 15 is the adapter plate lateral plan, and Figure 16 is the adapter plate front elevation.

Figure 17 is that axle drive shaft is overlooked, back view.

Figure 18 is cabinet cover, driving pedestal, axle drive shaft front elevation.

Figure 19 is the band plate birds-eye view that is in the light, and Figure 20 is the big plate birds-eye view that is in the light.

Figure 21 is the band plate lateral plan that is in the light, and Figure 22 is the big plate lateral plan that is in the light.

Figure 23 is the draw bar back view, and Figure 24 is the draw bar birds-eye view.

Fig. 4, Fig. 6-Figure 12 compare rule 1: 1, Figure 13-Figure 24 compare rule 1: 2.

The specific embodiment:

Embodiment 1

In the described scheme circuit of Fig. 2, comprise two external source circuit, a motor power circuit, an integrated circuit A ₁A ₂Voltage-stabilized power supply circuit, an electric power polarity conversion switch circuit, a motor junction circuit, a high light circuit, a low light level circuit, a strong and weak light change-over circuit.

Described external source circuit is because the power supply that vehicle uses is generally two kinds of 12V and 24V, U _{Outer 2}Be 24V anode input end, through double-throw double-pole toggle switch K _4-2One terminate to common junction, i.e. two aerotron G ₉, G ₁₁The contact of collecting electrode, this parallel capacitance C ₆, C ₇Ground connection, this point is by resistance R 12 and zener diode Z simultaneously ₆Form a reference voltage circuit over the ground, the zener diode negative pole is sent into aerotron G to 16V ₁₁Base stage on, meet three terminal regulator U by the G11 emitter ₁Input end, and by resistance R ₁₁Constitute load resistor over the ground, three terminal regulator U ₁Crura intermedium ground connection, the output termination extends out pipe G ₉Base stage, by G ₉12 volts power supplys of emitter output, another K switch of while _4-1Common junction, i.e. the point of E in the circuit is connected on the G of the same end of double-throw two pole switch ₉The end points of emitter, switch is dialled to opposite side, K switch _4-1, K _4-2Two common junction disconnect G ₉Emitter and U _{Outer 2}, K _4-1Common junction be connected on the positive pole of battery of external 12V, the negative pole of external connection battery connects this machine ground wire.

Component specification: G ₁₁=3DG12 β=60 Z ₆=1n4745A C ₆=0.1 μ F, C ₇=470 μ/35V, C ₅=0.1 μ F, C ₃=200 μ F/16V, R ₁₁=2.6K, R ₁₂=1.5K, U ₁=7812

Described motor power circuit, three terminal regulator U ₂Input end be connected on 12V input end E point, crura intermedium ground connection, its mouth is by capacitor C ₁Filtering, the working power of input 9V motor M, and it is connected on relay J ₁, J ₂On.

Specification: U ₂=7809, C1=100 μ F/16V

Described integrated circuit A ₁, A ₂Voltage-stabilized power supply circuit, three terminal regulator U ₃Input end be connected on U ₂Mouth, crura intermedium ground connection, U ₃Output end current by capacitor C ₂, C ₄Filtering, output 5V sends into A ₁, A ₂ Power input pin 4.

Specification: U ₃=7805 C ₂=100 μ F/10V C ₄=0.1 μ F

Described electric power polarity conversion switch circuit, this is two switch circuits that circuit element parameter is identical, the 12V power supply is through diode Z ₃And relay J ₁Be connected to combination switch pipe G ₁₀, G ₄Two collecting electrodes on, G ₄, G ₆Grounded emitter, G ₁₀Base stage B point pass through resistance R ₅Ground connection, G ₅Base stage D point pass through resistance R ₇Ground connection, valve resistance [R ₅]=[R ₇], Fig. 3 repeat circuit [J ₁] normally closed contact and relay [J ₂] open contact link to each other and power connection U ₂Mouth 9V, relay [J ₁] open contact and relay [J ₂] normally closed contact link to each other and grounding jumper, by the common junction out-put supply of two relays, J when two relays discharge ₁Export 9 volts, J ₂The output ground wire, J during adhesive ₁The output ground wire, J ₂Export 9 volts, have only relay J ₁During adhesive, two relays are all exported ground wire.

Specification: G ₁₀, G ₅=3DG12 β=60 G ₄, G ₆=BD135 β=30

R ₅=R ₇=3K Z ₃, Z ₄=2CP14 J ₁, J ₂=SD _12-2Type

Described motor junction circuit, Fig. 3 repeat circuit J ₁Common junction connect K switch ₂, J ₂Common junction connect K switch ₃, Fig. 2 repeat circuit J ₁Common junction be connected on K ₂Normally closed contact, and connect the negative terminal of motor M, J by common junction ₂Common junction meet K ₃Normally closed contact, and connect the anode of motor M, K switch by common junction ₂, K ₃Open contact ground connection, J in other words ₁, J ₂Common junction on power supply be the two ends that directly are added to motor M by the normally closed contact of two switches.

Specification: K ₂, K ₃=red flag KWX motor M is the 9V small-sized DC motor

Described high light circuit, power supply 12V passes through resistance R respectively ₄, R ₆Connect A point and C point, as photo-transistor G ₁, G ₂When inserting A, B, C, D at 4, resistance R ₅=R ₇During=3K and the electric power polarity conversion switch circuit form the high light circuit.

Specification: R ₆=R ₄=10K G ₁, G ₂=3DU51A

Described low light level circuit is by integrated circuit A ₁, A ₂And peripheral cell is formed A ₁, A ₂Be two comparison amplifiers, pin 4 input U ₃5 volts, pin 11 ground connection, 5 volts of electric currents pass through resistance R ₁With potential device W ₁Go into ground, W ₁Armature contact be A ₁, A ₂Two negative input ends, pin 9 and pin 2 provide threshold voltage (0.08V-0.12V), K switch among Fig. 5 _1-1-K _1-4It is relay J ₃Four groups of switches, A, B, C, D are four open contacts, four common junction meet photosensitive tube G ₁, G ₂Four pins, K _1-1And K _1-3The normally closed contact power supply 5V that is connected, K _1-2Normally closed contact meet synchronizing potential device W ₂An end, its armature contact meets A ₁Positive input terminal pin 10, K _1-4Normally closed contact meet W ₃An end, its armature contact meets A ₂Positive input terminal pin 3, the in addition two ends of the synchronizing potential device ground connection that links to each other.Diode Z ₁, Z ₂Decapacitation makes A ₁, A ₂During the output high level, supercharging is outer can also to stop the high potential when the high light circuit working to enter A ₁, A ₂

Specification: R ₁=30K W ₁=4.7K A ₁, A ₂=LM324 W ₂, W ₃=50K synchronizing potential device Z ₁, Z ₂=2CP14 R ₂, R ₃=100 Ω

Described strong and weak light change-over circuit, Fig. 9 photo-transistor G ₁36, G ₂37 is that strong and weak optical circuit is common, and their four pins are received relay J respectively ₃Four common junction on.Four open contacts connect the high light circuit, and four normally closed contacts connect low light level circuit, and circuit is by resistance R ₉, R ₁₀, R ₈Photo-transistor G ₃, combination switch pipe G ₇, G ₈, diode Z ₅, relay J ₃With hand switch K ₅Form resistance R ₁₀=R ₇=R ₅, its structure is identical with the electric power polarity conversion switch circuit, and works under same illuminance, the different K switch of being ₅Be hand-operated forced switch, connect K when the utility model is worked by day ₅, thereby relay J ₃Adhesive photosensitive tube G ₁, G ₂Insert the high light circuit, then close K night ₅

Specification: G ₃=3DU51A G ₇=3DG6 β=60 G ₈=3DG12 β=30R ₈=1K R ₉=10K R ₁₀=R7=3K K ₅Be small-sized hand-operated switch J ₃Be the JRXB-1 type

Among Fig. 4, potential device W ₁With synchronizing potential device W ₂, W ₃Can be installed in the control capsule side, on the lid K should be set ₅Daytime, night indicator cock, power supply 24V and 12V indicator cock, and the binding post of external source and ground wire is set.Lower right corner relay J among the figure ₃Four common junction are connected on G by flexible cord ₁, G ₂Pin on (shown in the dotted line), 9 contacts on right side are connected on the needle guard seat relay J ₃A, B, C, D by flexible cord junction circuit base plate each point.

Be mechanical static structure lateral plan among Fig. 7, comprise a triple reduction gear, an operating range device, a recloser, two synchronizer gears, a follower, a photoelectricity frame setting device.

Described triple reduction gear, motor steamboat 1 on the motor 42 is by rubber band and the 2 soft transmissions of first ratio wheel, the recessed garden 21 of first deceleration provides the space for jam nut 43, its driven

gear

3 and 4 interlocks of second reducing gear, its driven gear 5 and axle-shaft gear 6 interlocks provide power and the suitable speed that is in the light by three grades of decelerations for axle drive shaft.

Described operating range device, axle drive shaft output body 44 roots are fixed half fan-shaped swing handle [12], on the both sides Z type adapter plate 33 of swing handle, by the reset limit switch K of the fixing control handle of screw 35 towards swing handle ₂[20] and the limit switch K that is in the light ₃[19], the anglec of rotation of axle drive shaft swing handle is 88 °-92 °.

Described recloser, among Fig. 2, K switch ₂Be the limit switch 20 that resets, K ₃Be the limit switch 19 that is in the light, so relay J ₁Common junction is connected on the limit switch K that resets ₂[20] normally closed contact, and pass through K ₂Common junction connect the negative terminal of motor M, K switch ₂Open contact ground connection, cooperate with axle drive shaft swing handle [12], constitute be in the light automatically, automatic reset device, relay J ₂The common junction and the limit switch K that is in the light ₃19 normally closed contact links to each other, K ₃Common junction connects the anode of motor M, and the open contact ground connection of two limit switches connects each point by flexible cord, and two normally closed contacts and ground wire are received on the patch bay 46.

Described synchronizer gear, axle drive shaft driven gear 7 and platelet driven wheel 9 equal diameters, between these two gears with intermediate gear 8 interlock mutually, thereby turn to identical, rotating speed is also identical, so be in the light band plate 101 and be in the light platelet 26 synchronized operations of platelet driven wheel 9 by 28 drives of platelet tooth bar on the drive shaft rod.

Described tracking apparatus, the bottom (Fig. 9) of the platelet that is in the light [26], the lower-left face is a strip breach [22], the bottom right face is the strip protrusion, the photo-transistor G on its breach [22] and the back photoelectricity frame ₁[36] corresponding, protrusion and photo-transistor G ₂[37] corresponding, in below be photo-transistor G ₃38.

Described synchronizer gear, when the platelet that is in the light moves, photo-transistor on the photoelectricity frame also rotates thereupon synchronously, synchronous condition: the two-end-point of platelet 26 miles of relative movement that are in the light, equal middle driven gear [10] with photoelectricity frame axle [15] angle, axle center that the heart connected, drive the radian that arc gear wheel [11] is changeed, by calculating, radius=4 * (distance in intermediate gear axle center and photoelectricity frame axle center)/13 of middle driven gear [10], this just guarantees the photosensitive property that photo-transistor is good.

Described photoelectricity frame setting device, middle driven gear 10 and bottom have arc gear wheel 11 interlock mutually of cylinder body, spring [27] in the cylinder body is pressed on the photoelectricity trestle body 13, cooperate the location by projection in the cylinder body with cylinder groove [32], photoelectricity frame axle 15 is arranged on both sides to be had on the U type frame 14 of groove [16], plus-minus screw [18] withstands on U type frame 14 bottoms, by nut 25 lockings.By adjusting the upper-lower position of photoelectricity frame, just can adjust the position of being in the light of the band plate 101 that is in the light.

U type frame bottom is fixed on the stop screw 29 on the L template 40 in addition among Fig. 7, in case cylinder is deviate from, three photo-transistors are fixing by the screw hole on 2 screws 39 (Fig. 9) and the photoelectricity frame 41 by insulcrete 30, and spiracle 45 is established on the cylinder body top, so that photoelectricity trestle body moves in cylinder body; The protruding garden 23 of axle bumper on 10 of 2 of first ratio wheels among Fig. 6, axle drive shaft 44, intermediate gear is used for preventing the arbor guest performer, projection on 10 of the middle driven gears, make the driven gear location, and by 24 lockings a little less than the spiral shell, the pin of photo-transistor is connected on the patch bay 46 by the thin and soft wire of 6 anti-foldings, and its 9 flexible cords are drawn by the machine hole, are attempted by on the needle guard, so that plug together with the needle guard seat in the Electronic Control Box, machine part is fixing by fixed orifice on Z-shaped plate and the L template 34.

Axle drive shaft output body 44 among Figure 18 in the square hole of drive shaft rod 105 and the casing plugs together, jump ring 203 is stuck in the drive shaft rod both sides to band plate adjustment disk 104, be locked on the screw 202 by nut 201, lifting bar 108 inserts in the lifter seat 111,, lock by hexagon ring and circular hole by hex(agonal)screw 205 by hand-tight nut 204.

Drive shaft rod 105 is fixed a dark brown big plate 102 that is in the light on the cover frame 106 of Fig. 1 left side, the brown band plate that is in the light [101] stands by the be in the light front of big plate of axle bonded assembly, two draw bars [103] below big plate 102 both sides are in the light, be connected on the axle of band plate axle and band plate adjustment disk 104, lifter seat on the right side cabinet cover 106 is being fixed slotted hole lifting bar 108 for 111 li, is connected and fixed plate 112 by pitch angle adjuster 109.Four axial connecting line correspondent equals of big plate 102 both sides are in the light.Regulate band plate adjustment disk 104, can make the band plate that is in the light vertical, make band plate be in the best position of being in the light with light.Since people's height difference, thereby lifter is set for adjustment, because the height difference of vehicle, thereby establish the pitch angle adjuster.

Embodiment 2

After the utility model installs, check each point voltage of power supply, whether the energized test-run a machine is checked low light level circuit, move under indoor natural light, connects K if any action ₅Low light level circuit is inserted the high light circuit, with hand light tube irradiation Electronic Speculum, platelet moves too fast as finding to be in the light, can in the motor switch on, be connected in series the adjustable resistance of one 100 Ω, regulate motor speed, should distinguish the too fast flutter phenomenon of the platelet that is in the light or tremble, transfer to soon and not and quiver for suitable owing to the platelet breach is narrow.

Embodiment 3

After the utility model start as not at reset mode, the negative terminal of motor M is 9V, the motor anode is a ground wire, motor M 42 reverses and drives first ratio wheel 2 by the rubber band on the steamboat 1, driven gear 3 reverses, driven gear 3 drives second reducing gear 4 and driven gear 5 is just changeing, driven gear 5 drives axle-shaft gear 6 and driven gear 7 reverses, the big plate that is in the light on the drive shaft rod upwards lifts with the band plate that is in the light simultaneously, axle drive shaft driven gear 7 drives, intermediate gear 8 and middle driven gear 10 are just changeing, intermediate gear 8 drives platelet driven wheels 9 and reverses, and makes on the platelet 26 that is in the light by platelet tooth bar 28 and to move, simultaneously in the middle of photosensitive tube on the photoelectricity frame that drives on the arc gear wheels 11 of driven gear 10 reverse, in the time of to terminal, depress the control handle of the limit switch 20 that resets when axle drive shaft swing handle 12 reverses, be connected on the motor negative terminal of common junction, be disconnected by the 9V of normally closed contact, be connected on the ground wire of open contact, because of the motor anode also is a ground wire, the motor two ends are all ground wire and stall, readiness for action.

When the utility model uses by day, should be earlier indicator cock K ₅Point to the position on daytime, when the sunlight rolling at the moment, energized is because of K switch ₅On, the 12V electric current is through resistance R ₉, R ₈K switch ₅To combination switch pipe G ₇, G ₈Input end, thereby combination switch is guaranteed adequate food and conducting, relay J ₃Adhesive, circuit changes the high light circuit over to by low light level circuit, photo-transistor G ₁, G ₂Because of its resistance of illumination descends rapidly, the 12V electric current is respectively through resistance R ₄And R ₆, photosensitive tube G ₁With photosensitive tube G ₂Arrive B, D 2 points, two point voltages raise, and two combination switch pipes are saturation conduction simultaneously, relay J ₁, J ₂Adhesive, thereby relay J ₁Common junction transfer ground wire to by 9V, J ₂Common junction transfer 9V to by ground wire, because of the motor negative terminal inserts ground wire in advance, motor just changes, driving the big plate that is in the light by transmission device is in the light downwards with the be in the light band plate and the platelet that is in the light, simultaneously the photosensitive tube on the photoelectricity frame moves down with the indentation, there of the platelet that is in the light and rotates, and when axle drive shaft swing handle 12 was just changeing whiz and resets the control handle of limit switch 20, the motor negative terminal was disconnected by the ground wire of open contact, receive normally closed contact, by relay J ₁The ground wire sent here of common junction on, motor continues just to change, when the indentation, there 22 of the platelet that is in the light is in two photosensitive tube G ₁, G ₂And on the straight line between the sun time, breach exposes photosensitive tube G ₁36, the right protrusion blocks photosensitive tube G ₂37, G ₂Because of the loss of gloss resistance increases, the D point voltage descends, thereby compound transistor G ₅, G ₆End relay J ₂Discharge, the voltage of its common junction transfers ground wire to by 9V, and because of the motor negative terminal also is the stall of ground wire motor, the band plate that is in the light on the drive shaft rod also should be on the eyes and the straight line between the sun of chaufeur simultaneously, as hiding the incessantly adjustable lay the grain electricity of sun frame plus-minus screw, sun G when moving up ₁, G ₂Because of loss of gloss enters the state of automatically reseting, until being in again between the photosensitive tube and the sun and stop, the band plate that is in the light simultaneously also blocks the sun synchronously, and the brown band plate that is in the light is kept to fill light with dazzling sunshine, disappear until sunlight, the utility model automatically resets to readiness for action.

When use night indicator cock K ₅Be allocated to the position at night, thereby closed K ₅, relay J ₃Discharge J ₃Four groups of K switch _1-1-K _1-4Circuit is connected on the low light level circuit of normally closed contact, when big light at a distance shines photosensitive tube on the photoelectricity frame of the inside by the photoelectricity mirror, G ₁, G ₂Resistance reduce, the 5V electric current is through photosensitive tube G ₁, G ₂Flow to synchronizing potential device W ₂, W ₃An end, W ₂The electric current of armature contact enter A ₁Pin 10, W ₃The electric current of armature contact enters A ₂Pin 3, when this two point voltage is higher than threshold voltage, comparison amplifier A ₁ Mouth pin 8 transfers high level output to by low level, through current-limiting resistance R ₂With diode Z ₁Arrive the B point, simultaneously A ₂ Pin 1 also export a high level through resistance R ₃With diode Z ₂Deliver to the D point, combination switch pipe G ₁₀, G ₄And combination switch pipe G ₅, G ₆The while saturation conduction, relay J ₁, J ₂Adhesive, motor M is just changeed, and drives light-baffling device and is in the light; When the other side's vehicle approaching, its intensity of light makes photosensitive tube G ₃Resistance reduces, combination switch pipe G ₇, G ₈Input terminal voltage raise G ₇, G ₈Saturation conduction, relay J ₃Adhesive, circuit inserts the high light circuit by low light level circuit, because change-over circuit and high light circuit work under same illuminance, thereby the high light circuit takes over low light level circuit working immediately, this has just been avoided the scattering light initiation low light level circuit erroneous action of high light.

Claims

1. anti-dazzle automatic light stopper, comprise the big plate that is in the light, it is characterized in that: the described big plate that is in the light is fixed on the casing frame by drive shaft rod, this big front edge of board that is in the light is standing by the axle bonded assembly band plate that is in the light, the two ends of draw bar be connected on band plate axle and the band plate adjustment disk the axle on, more than constitute light-baffling device; Casing is provided with lifter and pitch angle adjuster and is connected on the adapter plate; Constitute triple reduction gear by electrical motor and gear in the casing; The limit switch of axle drive shaft swing handle and both sides constitutes the operating range device of axle drive shaft, and constitutes recloser by the swing handle and the limit switch that resets; Between axle drive shaft driven gear and the platelet driven wheel, by the intermediate gear interlock, platelet driving gear and the tooth bar interlock of being in the light on the platelet more than constitute the synchronizer gear of the be in the light band plate and the platelet that is in the light; Two photo-transistors that are in the light on the breach of platelet and protrusion and the back electro-optical package constitute the tracking apparatus of platelet to light source that be in the light; Middle driven gear and bottom have the arc gear wheel interlock of cylinder body, spring in the cylinder body is pressed on the cylinder of photoelectricity frame, cooperate the location by projection in the cylinder body with the cylinder groove, photoelectricity frame axle is arranged on both sides to be had on the U type frame of groove, withstand on U type frame bottom by plus-minus screw, fix three photo-transistors by insulcrete on the photoelectricity frame, the setting device that the more than synchronizer gear of the photosensitive tube on the formation photoelectricity frame and the platelet that is in the light, and photoelectricity chord position is put; Be provided with indicator cock and power supply indicator cock round the clock by flexible cord bonded assembly Electronic Control Box, voltage-stabilized power supply circuit is arranged in the box, by polarity switch circuit, high light circuit, low light level circuit and the strong and weak light change-over circuit of the power supply of light guide.

2. anti-dazzle automatic light stopper according to claim 1 is characterized in that: the polarity switch circuit of described light-operated power supply comprises: relay (J ₁) normally closed contact and relay (J ₂) open contact link to each other and receive power supply (U ₂) 9V end, relay (J ₁) open contact and relay (J ₂) normally closed contact link to each other and receive on the ground wire, power supply is exported by two common junction, the valve resistance R ₅=R ₇

3. anti-dazzle automatic light stopper according to claim 1, it is characterized in that: described recloser comprises: relay J ₁Common junction be connected on the limit switch (K that resets ₂) normally closed contact, and by (K ₂) the negative terminal of common junction motor (M), limit switch (K resets ₂) open contact ground connection, cooperate with axle drive shaft swing handle (12) to constitute the automatic reset device that is in the light automatically.

4. anti-dazzle automatic light stopper according to claim 1, it is characterized in that: the operating range device of described axle drive shaft comprises: axle drive shaft output body (44) root is fixed one and half fan-shaped swing handles (12), is fixing the reset limit switch (K of control handle towards swing handle (12) on the Z type adapter plate 33 of swing handle both sides ₂) and the limit switch (K that is in the light ₃), the rotational angle of axle drive shaft swing handle (12) is 88 degree～92 degree.

5. anti-dazzle automatic light stopper according to claim 1 is characterized in that: the bottom of the described platelet that is in the light (26), lower-left face are strip breach (22), and the bottom right face is the strip protrusion.

6. anti-dazzle automatic light stopper according to claim 5 is characterized in that: the breach (22) of the described platelet that is in the light (26) bottom and the photo-transistor (G on the photoelectricity frame of back ₁) corresponding, protrusion and photo-transistor (G ₂) corresponding.

7. anti-dazzle automatic light stopper according to claim 1, it is characterized in that: the synchronizer gear of the photo-transistor on the described photoelectricity frame and the platelet that is in the light comprises: the two-end-point of the described platelet that is in the light (26) miles of relative movement, the angle, axle center that is connected with photoelectricity frame axle center (15) equals middle driven gear (10) the drive radian that arc gear wheel changeed, the radius of middle driven gear=4 * (distance in middle driven gear axle center and photoelectricity frame axle center)/13.

8. according to right 1 described anti-dazzle automatic light stopper, it is characterized in that: described photoelectricity frame setting device comprises: arc gear wheel (11) interlock mutually of middle driven gear (10) and bottom band cylinder body, spring (27) in the cylinder body is pressed on the photoelectricity trestle body (13), cooperate the location by projection in the cylinder body with cylinder groove (32), photoelectricity frame axle (15) is arranged on both sides to be had on the U type frame (14) of groove (16), withstands on U type frame (14) bottom by plus-minus screw (18).

9. anti-dazzle automatic light stopper according to claim 1, it is characterized in that: described light-baffling device comprises: the drive shaft rod (105) on the cover frame (106) is fixed a dark brown big plate (102) that is in the light, big front edge of board is standing by the brown band plate that is in the light of axle bonded assembly (101), the be in the light two ends of two draw bars (103) below big plate (102) both sides, be connected on the axle of band plate axle and band plate adjustment disk (104) four axial connecting line correspondent equals of big plate (102) both sides of being in the light.