CN107435299A - A kind of tunnel caution device - Google Patents
A kind of tunnel caution device Download PDFInfo
- Publication number
- CN107435299A CN107435299A CN201710901997.1A CN201710901997A CN107435299A CN 107435299 A CN107435299 A CN 107435299A CN 201710901997 A CN201710901997 A CN 201710901997A CN 107435299 A CN107435299 A CN 107435299A
- Authority
- CN
- China
- Prior art keywords
- light
- tunnel
- emitting device
- reflection
- light source
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/576—Traffic lines
- E01F9/582—Traffic lines illuminated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The present invention relates to a kind of tunnel caution device, including：Tunnel body and tunnel guardrail；Projection lamp, the Warning Mark of the first light-emitting device is installed；With the second light-emitting device being fixed on tunnel guardrail, the second light-emitting device includes：Corrugated sheet, light-passing board, printing opacity reflectance coating, reflection nail, and illuminator.First light-emitting device is installed in the top of tunnel body by the present invention, ensure that driving personnel before tunnel is entered, reduces speed, significantly reduce the generation of accident in advance；The light that second light-emitting device is sent using illuminator can project printing opacity reflectance coating by light-passing board and reflection nails on, and so as to which the vehicle being traveling is seen, play warning function.
Description
Technical field
The present invention relates to field of traffic, and in particular to a kind of tunnel caution device, more particularly to a kind of freeway tunnel
Light-emitting caution device near mouthful.
Background technology
At present, as the high speed development of China's economic, the improvement of road traffic have also obtained sizable attention, it is showed
In the laying and popularization of highway.Highway belongs to high-grade kilometer, is typically designed to 120 kilometers/hour or more
High speed, road surface include four or more track, and dividing strip is set up in centre, and both sides set up guardrail.
Because the vehicle on highway must keep the state run at high speed, so, the safety of road conditions is for vehicle row
It is vital for sailing.Tunnel often occurs because the area surroundings of process are more complicated in highway, therefore every
Guardrail near individual tunnel is provided with road sign sensing on the dividing strip at middle part, to remind the human pilot of vehicle to pay attention to
Road situation.But even being labelled with warning road sign, nearby accident still often occurs in freeway tunnel, to find out its cause,
When driving to mainly due to vehicle near tunnel with tunnel, due to tunnel guardrail will not light and light in tunnel compared with
Secretly, human pilot for the moment can not suitable environment, it may appear that of short duration blurred vision, easily causes the generation of accident.
The content of the invention
In consideration of it, enter it is an object of the present invention to provide a kind of vehicle participant fast with tunnel interior energy near tunnel
Speed adapts to and the luminous tunnel caution device for playing warning function, greatly reduces the danger formed in tunnel, has simultaneously
Warn reminding effect.
In order to reach foregoing invention purpose, the technical scheme taken is as follows：
A kind of tunnel caution device, including：Tunnel body and tunnel guardrail；
The projection lamp that tunnel bodies top projects to road surface is fixed on,
Warning Mark that is above tunnel body and being provided with the first light-emitting device；With
The second light-emitting device being fixed on the tunnel guardrail, second light-emitting device include：
Corrugated sheet, its shape undulate, middle part have a groove；
Light-passing board, the two side of the corrugated sheet groove is connected, for the groove surface of the corrugated sheet to be formed into a plane；Thoroughly
Optical reflection film, installed in the surface of the light-passing board；
Reflection nail, several are uniformly fixed along the light-passing board；And
Illuminator, be arranged in the corrugated sheet groove, for by the light that illuminator is sent by printing opacity reflectance coating and
Reflection nail reflexes to the eyes of people and/or the surface of object.
It is preferred that first light-emitting device is one kind in LED, LED light source or LED light bar.
It is preferred that the illuminator includes LASER Light Source and mirror-reflection piece, the mirror-reflection piece is arranged on described recessed
The side wall of groove, the laser that the LASER Light Source is sent by the reflection of mirror-reflection piece, reflex to the printing opacity reflectance coating with it is anti-
On nailing.
More preferably, the LASER Light Source is one kind in spot light or astigmatism source.
More preferably, when the LASER Light Source is spot light, by the word or cross that are arranged on the spot light opening position
Shape deflecting plate, have and the spot light is become into in-line light source or cross-shaped light source.
It is preferred that the projecting direction of the projection lamp is the direct of travel along vehicle.
More preferably, the Warning Mark is punching word mark.
More preferably, the surface of the punching word mark of the top of the tunnel body is provided with reflective membrane.
It is preferred that the tunnel entrance of the tunnel body is provided with reflectance coating.
It is preferred that the device also includes a charge power supply, for being charged to the described first and second light-emitting device.
Beneficial effects of the present invention：The present invention can be to person for driving a car using the second light-emitting device on reflective membrane, corrugated sheet
Member is reminded when entering tunnel, plays good warning function, especially illuminating at night effect and warning function more preferably；This hair
The groove of corrugated sheet is become a plane by the second light-emitting device of bright offer using light-passing board by curved surface, so as to anti-to install printing opacity
Penetrate film, reflection nail provide carrier, also for second light-emitting device light path reflection provides advantage；What illuminator was sent
Light can project printing opacity reflectance coating by light-passing board and reflection nails on, and so as to which the vehicle being traveling is seen, play warning
Effect；Illuminator can use a variety of various forms of power supplys, can be selected according to actual conditions, add the flexible of application
Degree；When illuminator uses Laser Power Devices, laser can repeatedly be reflected using the reflection of mirror-reflection piece, most laser at last
Reflexing on printing opacity reflectance coating makes it brighten, and can also reach warning function；The present invention uses the Warning Mark with luminous function,
And in its Warning Mark surface mount reflective membrane, so, the reflective membrane color on surface determines the visual effect on daytime, light-emitting device
Glow color determine night visual effect, especially under the conditions of night or sleety weather, the effect of warning function is more
It is good；First light-emitting device is low using LED, LED string, small power consumption, operation cost；Projection lamp is according to default program to car
Travel direction projection warning sign, will be projected directly at road surface, extremely strong warning function will be played to passing vehicle, and
Projected image readability is high, not protected from environmental, can apply for a long time.
Brief description of the drawings
Fig. 1 is that tunnel body shows with the structure that projection lamp and Warning Mark are combined in a kind of tunnel caution device of the present invention
It is intended to；
Fig. 2 is the sectional view of Warning Mark in Fig. 1；
Fig. 3 is the structural representation of the second light-emitting device in a kind of tunnel caution device of the present invention；
Fig. 4 is the structural representation that illuminator is LED in embodiment 1；
Fig. 5 is the structural representation that illuminator is LASER Light Source coordinates mirror-reflection piece in embodiment 2；
Fig. 6 is the structural representation that illuminator is when laser point light source coordinates deflecting plate in embodiment 3.
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
Embodiment 1
As Figure 1-4, a kind of tunnel caution device, including tunnel body 1 and tunnel guardrail, on tunnel body 1
Side is provided with the Warning Mark 3 of the first light-emitting device 2, and is fixed on the projection lamp 4 that the top of tunnel body 1 projects to road surface,
In addition, the tunnel caution device of the present invention also includes the second light-emitting device 6 being fixed on the tunnel guardrail corrugated sheet.
Second light-emitting device 6 includes：Corrugated sheet 11, light-passing board 7, printing opacity reflectance coating 8, reflection nail 9 and illuminator
10.The shape undulate of corrugated sheet 11, middle part have a groove 111；Light-passing board 7, connect the both sides of the groove of corrugated sheet 11
Wall, for the face of groove 111 of corrugated sheet 11 to be formed into a plane；Printing opacity reflectance coating 8, installed in the surface of light-passing board 7；Reflection nail
9, uniformly fix several along light-passing board 7；And illuminator 10, illuminator are LED, are arranged in corrugated sheet groove 111,
For the light that LED is sent to be reflexed into the eyes of people and/or the surface of object by printing opacity reflectance coating 8 and reflection nail 9.
In the present embodiment, Warning Mark 3 is punching word mark, and the projecting direction of projection lamp 4 is the traveling along vehicle
Direction, and the tunnel entrance of tunnel body 1 is provided with reflective membrane 5.
In the present embodiment, first light-emitting device 2 is one kind in LED, LED light source or LED light bar.It is described
Illuminator 10 or LED backlight, the one of which in LED light bar.
Using the purpose of light-passing board primarily to making the curved surface of corrugated sheet groove become a plane, such illuminator is sent
Light be transmitted to by light-passing board on the reflectance coating of printing opacity, then the last driving for reflexing to driving vehicle of reflection via reflection nail
In the eyes of member, good warning function, the especially environment at night are played, there is splendid effect.
Aluminium sheet can be made different fonts and pattern by punching word mark as requested, and the first light-emitting device 2 is built in punching
In the word mark of hole, the surface of punching word mark can be also arranged on.Zinc-plated steel skeleton is welded in the behind of punching word mark, for pacifying
Dress is fixed.Punching word mark has the characteristics of in light weight, windproof, dust-proof, waterproof, can round-the-clock running, not by adverse circumstances
Influence.
The light sent to be more beneficial for punching word will not be too strong, in the present embodiment, is set on the surface of punching word mark
It is equipped with reflective membrane 5.The color of reflective membrane 5 is preferentially warmed oneself colour system, sends soft light, is observed beneficial to night personnel of driving.Instead
Another effect of light film is：In the case that circuit is not smooth, surface reflection film night also can be by car or other are extraneous
Light, good reflective visual effect can be also played, reaches good warning function.
The color of reflective membrane 5 on surface determines the visual effect on daytime, and the light source luminescent color of LED string determines regarding for night
Feel effect, the color of reflective membrane and LED can arbitrarily arrange in pairs or groups uses, easily realize and prepare luminous and passively light in visual impact
It is unusual in effect.
The warning mark that projection lamp 4 projects has superpower brightness output, and the resolution ratio of height parsing, projecting road surface can reach
To fabulous alarming effect；Moreover, when passing through projection lamp projected area on the vehicle of traveling, projection lamp is by warning mark
It will be projected directly on automobile, the automobile at such rear also can significantly see the warning mark.Warning mark be in advance according to
Demand is set, and can be divided into two kinds of daytime, night different warning marks.
Tunnel caution device in this example can be also arranged on other similar mainly near tunnel and tunnel face
On guardrail.When the tunnel caution device of the present invention is arranged near tunnel face, the km of tunnel face 100-150 can will be entered
Corrugated sheet all configuration said apparatus, it will substantially reduce the generation of expressway traffic accident.
Embodiment 2
In another embodiment, shown in Fig. 5 to be illuminator coordinate the structure of mirror-reflection piece to show for LASER Light Source
It is intended to.On the basis of embodiment 1, illuminator 10 is used into LASER Light Source, LASER Light Source can be spot light, or astigmatism
Source, either spot light or astigmatism source, the laser that they send all are linears, it is impossible to directly reflex to the eye of driver
In eyeball, therefore, it is necessary to it is used cooperatively mirror-reflection piece 12.
Mirror-reflection piece is integrally fixed at the two side of corrugated sheet groove, and the laser that LASER Light Source is sent passes through mirror-reflection piece
Multiple reflections, finally reflex on printing opacity reflectance coating one bright path of formation, then the reflection again through reflection nail, reflection
To in the eyes of driver.
Here, the light intensity of laser, the distance of Laser emission can be selected according to the actual needs.
Embodiment 3
In another embodiment, shown in Fig. 6 is the structural representation that laser point light source coordinates deflecting plate 13.
The laser that laser point light source is sent is a point, and line source can be formed after deflecting plate, and line source has light by force,
The advantages of radiation length is wide, therefore, in the present embodiment, one word or cross will be installed in the Laser emission opening position of laser point light source
Shape deflecting plate, after deflecting plate reflects, in-line light source or cross-shaped light source are formed, so that printing opacity reflectance coating is shinny.
In embodiment 1-3, a kind of tunnel caution device includes a charge power supply, and the sun can be used in charge power supply
Can power supply, the sustainable power supply of environmental protection, do not influenceed by powering off；The municipal electricity consumption of tunnel face can also be used, to the first light-emitting device
Or second light-emitting device charged.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
It is and nonrestrictive.
Claims (10)
- A kind of 1. tunnel caution device, it is characterised in that including：Tunnel body and tunnel guardrail；The projection lamp that tunnel bodies top projects to road surface is fixed on,Warning Mark that is above tunnel body and being provided with the first light-emitting device；WithThe second light-emitting device being fixed on the tunnel guardrail, second light-emitting device include：Corrugated sheet, its shape undulate, middle part have a groove；Light-passing board, the two side of the corrugated sheet groove is connected, for the groove surface of the corrugated sheet to be formed into a plane；Printing opacity is anti- Film is penetrated, installed in the surface of the light-passing board；Reflection nail, several are uniformly fixed along the light-passing board；AndIlluminator, it is arranged in the corrugated sheet groove, for the light that illuminator is sent to be passed through into printing opacity reflectance coating and reflection Nail reflexes to the eyes of people and/or the surface of object.
- 2. a kind of tunnel caution device according to claim 1, it is characterised in that first light-emitting device is LED One kind in band, LED light source or LED light bar.
- A kind of 3. tunnel caution device according to claim 1, it is characterised in that the illuminator include LASER Light Source with Mirror-reflection piece, the mirror-reflection piece are arranged on the side wall of the groove, and the laser that the LASER Light Source is sent passes through minute surface The reflection of reflector plate, reflex to the printing opacity reflectance coating and nailed on reflection.
- 4. a kind of tunnel caution device according to claim 3, it is characterised in that the LASER Light Source is spot light or dissipated One kind in light source.
- A kind of 5. tunnel caution device according to claim 4, it is characterised in that when the LASER Light Source is spot light, By being arranged on the word or cross deflecting plate of the spot light opening position, have and the spot light is become into in-line light source Or cross-shaped light source.
- 6. a kind of tunnel caution device according to claim 1, it is characterised in that the projecting direction of the projection lamp is edge The direct of travel of vehicle.
- 7. a kind of tunnel caution device according to claim 6, it is characterised in that the Warning Mark is punching word mark Will.
- A kind of 8. tunnel caution device according to claim 7, it is characterised in that the punching of the top of the tunnel body The surface of word mark is provided with reflective membrane.
- A kind of 9. tunnel caution device according to claim 1, it is characterised in that the tunnel entrance of the tunnel body It is provided with reflectance coating.
- 10. a kind of tunnel caution device according to claim 1, it is characterised in that the device also includes charging electricity Source, for being charged to the described first and second light-emitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901997.1A CN107435299A (en) | 2017-09-29 | 2017-09-29 | A kind of tunnel caution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901997.1A CN107435299A (en) | 2017-09-29 | 2017-09-29 | A kind of tunnel caution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107435299A true CN107435299A (en) | 2017-12-05 |
Family
ID=60462170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710901997.1A Pending CN107435299A (en) | 2017-09-29 | 2017-09-29 | A kind of tunnel caution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107435299A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972548A (en) * | 2019-03-29 | 2019-07-05 | 武汉理工大学 | City tunnel vision guide system under a kind of biomimetic type municipal water |
| CN109989365A (en) * | 2019-04-23 | 2019-07-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of complex function light warning guidance system for Impacts Evaluation of Urban Tunnel |
| CN112144436A (en) * | 2020-09-11 | 2020-12-29 | 徐大年 | Night expressway maintenance reminding device |
| CN114214979A (en) * | 2021-12-21 | 2022-03-22 | 安徽省路桥工程集团有限责任公司 | Multifunctional integrated rod piece for urban crossroads |
-
2017
- 2017-09-29 CN CN201710901997.1A patent/CN107435299A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972548A (en) * | 2019-03-29 | 2019-07-05 | 武汉理工大学 | City tunnel vision guide system under a kind of biomimetic type municipal water |
| CN109989365A (en) * | 2019-04-23 | 2019-07-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of complex function light warning guidance system for Impacts Evaluation of Urban Tunnel |
| CN109989365B (en) * | 2019-04-23 | 2023-12-01 | 上海市政工程设计研究总院（集团）有限公司 | A combined function light warning guidance system for urban underground road |
| CN112144436A (en) * | 2020-09-11 | 2020-12-29 | 徐大年 | Night expressway maintenance reminding device |
| CN112144436B (en) * | 2020-09-11 | 2022-06-14 | 新疆启创荣达建设工程有限公司 | Night expressway maintenance reminding device |
| CN114214979A (en) * | 2021-12-21 | 2022-03-22 | 安徽省路桥工程集团有限责任公司 | Multifunctional integrated rod piece for urban crossroads |
| CN114214979B (en) * | 2021-12-21 | 2022-12-13 | 安徽省路桥工程集团有限责任公司 | Multifunctional integrated rod piece for urban crossroads |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107513951A (en) | A kind of light-emitting device of tunnel and its tunnel guardrail | |
| CN107435299A (en) | A kind of tunnel caution device | |
| US7192172B1 (en) | Visual warning device | |
| CN109887311A (en) | A kind of system and application method intelligently adjusting traffic-control device according to number | |
| CN110276968A (en) | A kind of fog-zone highway super long tunnel entrance security inducible system | |
| CN109403229A (en) | A kind of tunnel caution system | |
| CN107415821A (en) | A kind of vehicle mounted road safety alarm device | |
| CN110629698A (en) | Overspeed early warning and prompting traffic sign board based on visual persistence principle | |
| CN107492325A (en) | A kind of display device of tunnel mark | |
| CN202265784U (en) | Light-reflecting third-dimensional zebra stripes | |
| US20230278424A1 (en) | Information device for vehicle | |
| CN107514600A (en) | A kind of tunneluminescence device | |
| CN208058719U (en) | Using the tunnel of natural light and car bulb without source lighting system | |
| JP2001040625A (en) | Road surface marking apparatus | |
| CN108870299A (en) | fault warning method | |
| CN214896941U (en) | Road traffic safety intelligent control system | |
| JP3872582B2 (en) | Traffic sign | |
| CN208844452U (en) | Solar energy luminous spike nail light | |
| CN107476226A (en) | A kind of road guard light-emitting device | |
| JP2013200540A (en) | Card for flagging taxi and indicating boarding position | |
| CN102426794A (en) | Road safety warning board and safety warning indication method | |
| TWM250833U (en) | Electroluminescent light band of vehicles | |
| CN201927311U (en) | Solar self-luminous road traffic sign | |
| CN205662856U (en) | Traffic safety island | |
| TWI799147B (en) | High-efficiency projected luminous traffic signs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171205 |
|
| WD01 | Invention patent application deemed withdrawn after publication |