A kind of traffic lights with countdown function
Technical field
The utility model belongs to traffic signals apparatus field, and in particular to a kind of traffic signals with countdown function
Lamp.
Background technique
Traffic lights are made of red light, green light, amber light, and traffic lights are the traffic lights of international uniform.Red light indicates
No through traffic, and green light indicates to permit passing through, and amber light indicates warning, it is noiseless " traffic-police ".
Currently, one group of lamp that motor vehicle signal lamp is made of red, yellow, green three pattern-free circle units, refers to
Lead autos only.Rather than motor vehicle signal lamp in red, yellow, green three the round unit of various patterns by being made of
One group of lamp, instruct non-motor vehicle current.
The light source of signal lamp can be widely used now to LED (light emitting diode) light source, its small, brightness with power consumption
High, the advantages that service life is long.Incandescent lamp, low-voltage halogen tungsten is gradually replaced to make road traffic signal lamp.Traffic signals at present
Lamp control method is mainly or using timing controlled, i.e., by the period timing controling signal for the clocking scheme or setting being previously set
The switch of lamp.
But in reality, for the traffic lights at many crossings due to not having inverse timing device, driver can not expect that green light is held
The continuous time, on the one hand when green light reddens (Huang) lamp, driver easily makes a dash across the red light;On the other hand since driver fail to predict red (Huang)
Lamp lights the time, and at crossing in order to guarantee not rush red (Huang) lamp, some drivers must shift to an earlier date tens meters and just drop to speed
Red (Huang) lamp that is extremely low thus to will be greatly reduced traffic efficiency to stop at any time, while lighting suddenly, it is inevitable
The brake stepped on suddenly is brought, inevitably causes to knock into the back.Therefore more and more traffic lights are added to additional countdown dress
It sets, the reverse-timing display device of additional external on traffic lights, for showing count down time, to effectively prevent making a dash across the red light
Phenomenon.
But this external inverse timing device volume installed additional is big but also to carry out with the control system of traffic lights same
Step control debugging, when use, can also have the power supply difference because with lamp system, signal lamp are often occurring and are working just
The case where normal and inverse timing device goes wrong.
Utility model content
To solve the above problems, the utility model provides a kind of traffic lights with countdown function, will fall to count
When device integrated with traffic lights thing, signal lamp itself can be realized countdown function, solve the prior art
Problem.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of traffic letter with countdown function
Signal lamp, including annular lamp body and center lamp body;It is provided with annular LED lamp group on annular lamp body, is provided with center on the lamp body of center
LED light group;Annular LED lamp group includes more the first LED lamp beads, and the first LED lamp bead is uniformly set along the circumferencial direction of annular lamp body
It sets;Center LED light group includes more the second LED lamp beads, and the first LED lamp bead and the second LED lamp bead, which use, can be carried out red, yellow
With the lamp bead of green three kinds of colors switching;
Annular LED lamp group and center LED light group are all connected with traffic light controller, and every in annular LED lamp group
One LED lamp bead is connected with independent switch, and traffic light controller controls annular LED light group and changes bright light number with count down time
Change;The switching of traffic light controller control centre LED light group color.
First LED lamp bead is greater than the second LED lamp bead.
Second LED lamp bead is uniformly arranged in the plane of center lamp body.
It further include a colorless and transparent lampshade, the outside formation accommodating annular lamp body and center lamp body of lampshade and annular lamp body
Space, lampshade and the external side edge seal of circular lamp.
Colorless and transparent lampshade is detachably connected with annular lamp body.
More the second LED lamp beads are all connected with same switch.
Annular LED lamp group is detachably connected with annular lamp body, and center LED light group is detachably connected with center lamp body.
Annular LED lamp group and annular lamp body are provided with magnet, are provided with magnet between center LED light group and center lamp body.
Fastening is connected by screw between annular LED lamp group and annular lamp body and center LED light group and center lamp body.
Compared with prior art, the utility model at least has the advantages that compared with the existing technology, center LED
Lamp group forms eye-catching chrominance signal in the unlatching simultaneously of more of traffic lights center, and the first LED lamp bead is along the circumference side of annular lamp body
To the reduction being uniformly arranged with countdown, bright light quantity is uniformly reduced therewith, intuitively realizes countdown, and the utility model is adopted
It is high with LED lamp bead brightness, convenient for combination installation, devises multiple groups LED lamp bead and constitute a kind of traffic with countdown function
Signal lamp can ensure the various functions for realizing conventional traffic signal;Included countdown function, by traditional inverse timing device
Integrated with traffic light control system, and with traditional countdown function it is different be the traffic lights
Number without display count down time shows remaining time in a manner of bright light quantity reduction to realize countdown function.
Further, the first LED lamp bead on annular lamp body and the second LED lamp bead on the lamp body of center are of different sizes, shape
At eye-catching comparison.
Further, the second LED lamp bead is uniformly arranged in the plane of center lamp body, and signal display effect is obvious, is had
Associative perception.
Further, colorless and transparent lampshade prevents lamp body from leaking electricity, and does not influence light color, improves safe application performance.
Further, colorless and transparent lampshade is detachably connected with annular lamp body, and annular LED lamp group and annular lamp body are detachable
Connection, easy to repair and replacement.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In attached drawing, 1 is annular LED lamp group, and 2 be annular lamp body, and 3 be center LED light group, and 4 be center lamp body.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Referring to Fig.1, a kind of traffic lights with countdown function, including annular lamp body 2 and center lamp body 4;Annular
It is provided with annular LED lamp group 1 on lamp body 2, center LED light group 3 is provided on center lamp body 4;Annular LED lamp group 1 includes more
First LED lamp bead, the first LED lamp bead are uniformly arranged along the circumferencial direction of annular lamp body 2;Center LED light group 3 includes more second
LED lamp bead, the first LED lamp bead and the second LED lamp bead are using the lamp bead that can be carried out red, yellow and green three kinds of colors switching;
Annular LED lamp group 1 and center LED light group 3 are all connected with traffic light controller, and every in annular LED lamp group 1
First LED lamp bead is connected with independent switch, and it is bright with count down time variation that traffic light controller controls annular LED light group 1
The change of lamp number;The switching of 3 color of traffic light controller control centre LED light group;Second LED lamp bead is in center lamp body 4
It is uniformly arranged in plane.
One embodiment of the utility model, the first LED lamp bead are cut using can be carried out three kinds of colors of red, yellow and green
The lamp bead changed;The color of first LED lamp bead with the second LED lamp bead color change, the first LED lamp bead in each green light and
The last 3 display yellow of the count down period of red light, flashes simultaneously.
Annular 2 internal diameter of lamp body differs 5cm~8cm with the diameter of center lamp body 4, and display is obvious, and pedestrian is easy to distinguish.
It further include a colorless and transparent lampshade, the outside formation of lampshade and annular lamp body 2 accommodates annular lamp body 2 and center lamp body
4 space, lampshade and the external lateral edge of circular lamp seal, and colorless and transparent lampshade is detachably connected with annular lamp body 2;Annular LED lamp
Group 1 is detachably connected with annular lamp body 2, and center LED light group 3 is detachably connected with center lamp body 4;First LED lamp bead and second
The color changeable of LED lamp bead.
As one embodiment of the utility model, annular LED lamp group 1 and annular lamp body 2 are provided with magnet, center LED
Magnet is provided between lamp group 3 and center lamp body 4.
As another alternative embodiment of the utility model, annular LED lamp group 1 and annular lamp body 2 and center LED light
Fastening is connected by screw between group 3 and center lamp body 4.
Its working principle is that more the first LED lamp beads in annular LED lamp group 1 are uniformly distributed on the annular lamp body 2 of installation,
The switch of the first LED lamp bead is controlled by traffic light controller, 1 standard-sized sheet of annular LED lamp group is lighted when countdown starts, according to
Count down time successively controls each the first LED lamp bead closed in annular LED lamp group 1 to uniform sequential, until countdown
At the end of the first LED lamp bead all in annular LED lamp group 1 go out, into next count down period, thus formed one it is similar
In the animation effect that " clock and watch " walk about, a kind of visual effect of countdown for rendering.
The second LED lamp bead in center LED light group 3, which is uniformly distributed, to be mounted on center lamp body 4, by Traffic signal control
Device controls the switch of entire center LDE lamp group 3, and center LDE lamp group 3 is all lighted when countdown starts, at the end of countdown in
Heart LED light group 3, which switches color, flashing or goes out entirely, realizes the various functions of conventional traffic signal lamp.
The color switching time of center LED light group 3 is corresponding with the time of 1 countdown of annular LED lamp group, one week of countdown
Phase is switched to brilliant green colored lights and amber light, and countdown next cycle is switched to red colored lamp.
The utility model not only has a conventional traffic signal lamp various functions, and by inverse timing device and traffic lights
Integrated design, have the advantages that it is small in size be easily installed debugging, while there is the countdown function of simple, intuitive, convenient for driving
Member's viewing, good visual effect.