CN207457681U - A kind of special laser projector system of subway - Google Patents
A kind of special laser projector system of subway Download PDFInfo
- Publication number
- CN207457681U CN207457681U CN201720816940.7U CN201720816940U CN207457681U CN 207457681 U CN207457681 U CN 207457681U CN 201720816940 U CN201720816940 U CN 201720816940U CN 207457681 U CN207457681 U CN 207457681U
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- subway
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- projector system
- proof cabinet
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
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- 239000002253 acid Substances 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 230000035943 smell Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of special laser projector systems of subway, including a kind of special proof cabinet of subway and the special laser projection of subway, the proof cabinet includes tank shell, the supporting block being connected with stent wall is equipped in tank shell bottom, the bracket component for placing laser projection is equipped in tank shell, the radiator includes the heat dissipation gas vent for being located at tank shell side and heat dissipation exhaust fan, the fan blade of heat dissipation exhaust fan faces heat dissipation gas vent, radiate be equipped between gas vent and the exhaust fan that radiates it is detachable, can the strainer replaced of periodic cleaning.The special laser projector system of subway of this case meets the environment and performance requirement of subway, and using effect is good, powerful, long lifespan.
Description
【Technical field】
The utility model is related to a kind of special laser projector systems of subway.
【Background technology】
Subway shield door is the subjects such as item collection building, machinery, material, electronics and information in the high-tech product of one,
It is used in subway platform.Shield door separates platform and train operation region, its automatic opening is controlled by control system.
Subway shield door is divided into closed, open type and half-height type, and middle open type and half-height type are usually regarded as " safety door ",
Only serve safety and beautiful effect.It is enclosed to be usually just called " shield door " and most common one kind by people.
Industrial light modulation film is sticked in the fixed door of subway shield door or the tempered glass of fixed door is changed to industrial light modulation
Glass installs a kind of installation special laser projector system of subway on the wall of the another side in subway platform Gui Hang areas.Installation
The special laser projector system of subway is projected in image or video on industrial light modulation film or industrial dimming glass, the trip in platform
Visitor can see image or video in the fixed door of subway shield door.Here it is subway shield door projection display systems.
The special laser projector system of subway in subway shield door projection display system, including the special proof cabinet of subway and
The special laser projection of subway, by installing the special laser projection of subway in the special proof cabinet of subway, to adapt to subway station
The particular surroundings of platform rail row region and meet subway facilities clearance requirement.
Since the environment of subway platform rail row region is special and Metro Clearance requirement, the ground of the special projector system of subway
The special proof cabinet of iron, it is necessary to good environment is provided to the special laser projection of subway, and the two organically combines, to adapt to following ring
Border is suitable for subway platform Gui Hang areas with special mounting, requirement, the special laser projection of guarantee subway is met：
1st, environmental condition (1) temperature humidity range：5-40 DEG C of humidity<85%RH；(2) degree of protection：IP55；(3) it is shockproof：Earthquake intensity 7
Spend horizontal acceleration 0.25g, normal acceleration 0.125g；(4) prevent fires：With reference to BS6853；(5) long-term work is tiny in metallic dust
Metallic conduction dust environment；(6) smells distributed such as sweat, excreta and the conducting wire that long-term work is distributed in acid mist human body etc.
The environment of formation；
2nd, the vibrations of subway platform Gui Hang areas are strong, wind pressure is big, and the special laser projection weight of subway reaches 20-70KG, installation branch
Frame must be reinforced；
3rd, the special laser projection of subway is installed on Gui Hang areas wall.To avoid solar effect, (i.e. human eye is seen in platform
See screen, can be clearly visible at rear-projection projector camera lens and influence perception), projection needs to be mounted on above screen vertical about
0.35 meter of position (i.e. apart from platform ground 1.85 meters), the camera lens light extraction needs of the special laser projection of subway tilt down,
And it can be adjusted as needed between 20-30 °；
4th, subway platform Gui Hang areas are less than 450mm, it is necessary to the special laser projection system of subway to the requirement of subway facilities clearance
System is whole, regardless of level during installation or tilts 20-30 °, the floor projection size (depth) of in-orbit row area section is respectively less than
450mm。
5th, the special laser projection of subway is projected across Gui Hang areas on fixed mask door from Gui Hang areas wall, and distance is about
3.5-4 meters, and 2.5 meters * 1.8 meters of display area, that is, require lens transmissivity 1.0-1.7： 1；
6th, require the special laser projection of subway go out luminous intensity more than 7000 lumens and to go out luminous intensity adjustable, to meet
Passenger in platform watches the comfort level and experience sense when image or video, and long-term, stable, reliable.
7th, due to subway work the characteristics of, the special laser projection of subway need to carry corner Geometry rectification and trapezoidal correction etc.
Function；It is convenient, fast in the hope of debugging；
8th, the special laser projection resolution ratio of subway：1920*10802073600 pixels；Can by internet net, computer,
USB, subway play system etc. provide image and video playing source；There is infrared remote control to carry out execute-in-place, 5 meters of distance or more；
9th, the special laser projection requirement of subway is equipped with RS485 interfaces etc., remote operation control, communication, inspection；
10th, the special laser projection of subway meets key screening screen function：When subway enters the station, moment projector's output nothing goes out
Light, the passenger in platform can can't see any image or light in the fixed door of subway shield door.It is left when subway
After platform, moment projector, which exports, recovers light extraction, and the passenger in platform can see figure in the fixed door of subway shield door
Picture or video.
【Utility model content】
The utility model is projector system must is fulfilled in subway shield door projection display system to be solved 10
Big technology practical problem, provides a kind of special laser projector system of suitable subway.
For above-mentioned purpose, the utility model uses following technical scheme：
A kind of special laser projector system of subway, including a kind of special proof cabinet 1 of subway and the special laser projection of subway
Machine 2.
A kind of special laser projector system of subway as described above, it is characterised in that the proof cabinet 1 includes tank shell
11, the supporting block 12 being connected with stent wall is equipped in 11 bottom of tank shell, is equipped in tank shell 11 and places laser projection 2
Bracket component 13, the radiator include be located at 11 side of tank shell heat dissipation gas vent 14 and heat dissipation exhaust fan 15, dissipate
The fan blade of thermal exhaust fan 15 faces heat dissipation gas vent 14, and radiating, it is removable to be equipped between gas vent 14 and heat dissipation exhaust fan 15
Unload, can periodic cleaning replace strainer.
A kind of special laser projector system of subway as described above, it is characterised in that the bracket component 13, which includes, to be set
Guide rail 131 on 11 bottom plate of tank shell is equipped with draw runner 132 on guide rail 131, and support plate 133 is set on draw runner 132, is being propped up
Plate 133 is equipped with supporting rack 134, four corners of supporting rack 134 by screw be fixedly connected on support plate 133, opposite
The support plate 133 of both sides is equipped with arc regulating tank 135, and the laser projection 2 is fixed on supporting rack 134, described in stent
Vibration-proof structure is equipped between 33 and laser projection 2, which is damping spring reed or damping rubber pad.
A kind of special laser projector system of subway as described above, it is characterised in that proof cabinet 1 be equipped with can shutter door 16,
The anti-reflection glass 161 of perforate installation high-quality on door, light transmittance is up to more than 95%, including anti-reflection face, makes the light extraction of projector 2
Light intensity decays less after anti-reflection glass 161, and ensures that IR remote controller can control subway special at platform, shield door
With projector, the typical sizes 340mm*360mm*5mm of anti-reflection glass 161.
A kind of special laser projector system of subway as described above, it is characterised in that be additionally provided with DVI/ in proof cabinet 1
Optic fiber converter, serial ports/optic fiber converter, control/vision cable, optical fiber, fiber coupler.
A kind of special laser projector system of subway as described above, it is characterised in that the special laser projection of subway
2, it is internally provided with light valve and software coordinates, it can key screening screen；Built-in Power focus, electricity driving displacement camera lens, lens transmissivity 1.0-
1.7：1, carry the functions such as corner Geometry rectification and trapezoidal correction；There are RS485 interfaces；Go out luminous intensity more than 7000 lumens and can
Adjustment.
A kind of special laser projector system of subway as described above, it is characterised in that the optics and electricity of laser projection 2
Gas part is whole as a closing, is isolated using rubber pad and surrounding other parts, and internal heat is radiated by it
Piece export and forced cooling, and anti-watertight is employed to corresponding turnover pipeline, vision cable, service cable, control cable
Envelope processing slows down attenuation, optics and electric part free from dust into polluting to ensure luminous intensity.
A kind of special laser projector system of subway as described above, it is characterised in that laser projection 2 is protruded containing camera lens
Size 585mm*380mm*196mm during part.No matter horizontal during installation or 20-30 ° of inclination, the water of in-orbit row area section
Flat projection size (depth) is respectively less than 420mm.
A kind of special laser projector system of subway as described above, it is characterised in that the size of proof cabinet 1 is 800mm*
450mm*500mm, it is ensured that laser projection 2 is in the comfortable adjustment angle of inclination in 1 inside of proof cabinet, compact and reasonable.
A kind of special laser projector system of subway as described above, it is characterised in that proof cabinet 1 and the special laser of subway
The fitted position of projector 2 is fitted close, the appearance and size after their system integrations, simply in the external dimensions of proof cabinet 1, this
It can ensure that the special laser projector system of subway meets subway platform Gui Hang areas and the level of the in-orbit row area section of subway equipment is thrown
Shadow size (depth) is respectively less than the facilities clearance requirement of 450mm.
The beneficial effects of the utility model have:
This case includes proof cabinet, and laser projection is equipped in proof cabinet, further includes to laser projection projection light extraction
The anti-reflection glass of high-quality.Proof cabinet can keep a stable environment, and constant temperature, constant humidity, vibrationproof etc. make laser projection
A stable working environment is kept, makes drop shadow effect better.
In addition, proof cabinet includes tank shell, bracket component is equipped in tank shell, laser throwing is placed on bracket component
Bracket component can so be pulled out and carry out replacing laser projection 2 outside tank shell by shadow machine.Heat dissipation is equipped in the side of tank shell
Gas vent and heat dissipation exhaust fan, the fan blade for the exhaust fan that radiates face heat dissipation gas vent, can radiate to tank shell, radiate
Effect is fast.
It in addition, being equipped with vibration-proof structure between stent and laser projection, can play the role of steady, make laser projection
At work, will not shake.
In addition, heating tube can be also equipped in tank shell.When winter is especially cold, heating tube can be opened, keeps case shell
In vivo temperature.
And when the projection angle of laser projection to be adjusted, the screw of opposite two corners of supporting rack is unclamped, afterwards
Movable supporting frame makes movable supporting frame opposite sides arcuately slide in regulating tank, and supporting rack is finally made to form angle of inclination, is reached
To desired angle.
Proof cabinet can be in shutter door high-quality anti-reflection glass, the light extraction light intensity of projector is made to decline after anti-reflection glass
Subtract less, and ensure that IR remote controller can control the special projector of subway at platform, shield door.
Light valve is equipped in the special laser projection 2 of subway and software coordinates, meets a key and hides screen function, meet subway shield
The particular/special requirement of door display；There are RS485 interfaces etc., it can remote operation control, communication, inspection；Lens transmissivity 1.0-1.7：1,
Current shield door Projection Display size can be met；The functions such as corner Geometry rectification and trapezoidal correction are carried, debugging is convenient, fast；
Go out luminous intensity more than 7000 lumens and go out that luminous intensity is adjustable, can for a long time, the passenger met in platform that stablizes watch image or
Comfort level and experience sense during video.
The optics and electric part of the special laser projection 2 of subway are whole as a closing, using rubber pad and surrounding
Other parts are isolated, and internal heat passes through its cooling fin export simultaneously forced cooling, and to corresponding turnover pipeline, video
Cable, service cable, control cable employ waterproof sealing processing, reached light intensity decays slow down, optics and electrical
Part is more robust when free from dust pollutes, delays service life.
The fitted position of proof cabinet and the special laser projection of subway is fitted close, compact and reasonable, their organic integration
Appearance and size afterwards, simply in the external dimensions of proof cabinet, this can ensure that the special laser projector system of subway meets subway station
Tai Guihang areas are respectively less than the floor projection size (depth) of the in-orbit row area section of subway equipment the facilities clearance requirement of 450mm.
Body structure uses aluminium alloy, and overall weight is mitigated using stainless steel more than 18Kg than completely.Equal oxidizing blackening inside and outside proof cabinet
Or the black powder processing of spray, reduce light pollution.
【Description of the drawings】
Fig. 1 is the stereogram of the utility model, not containing the front door with anti-reflection glass.
Fig. 2 is the stereogram of proof cabinet, not containing the front door with anti-reflection glass.
Fig. 3-4 is the stereogram that laser projection is located on bracket component.
Fig. 5 is proof cabinet containing the front door plan view with anti-reflection glass.
Fig. 6 is the stereogram of the utility model, containing the front door with anti-reflection glass.
Fig. 7-8 is the horizontal positioned state of the special projector of subway, tilts down 26 °, after 30 ° of angles, and in-orbit row area is cutd open
Projection size in the level of face compares figure.
【Specific embodiment】
It elaborates below in conjunction with the accompanying drawings with embodiment to the utility model：
A kind of special laser projector system of subway, it is outer shaped like 3, including a kind of special laser projector system of subway,
It is characterized by comprising proof cabinet 1, the anti-reflection glass 161 of the upper perforate installation high-quality of proof cabinet 1 is equipped in proof cabinet 1
The special laser projection 2 of subway further includes the bracket component 13 realized to the special laser projection of subway and tilt 20-30 ° of function,
Radiator and heating tube are equipped in proof cabinet 1.
The proof cabinet 1 includes tank shell 11, and the supporting block 12 being connected with stent wall is equipped in 11 bottom of tank shell,
The bracket component 13 for placing laser projection 2 is equipped in tank shell 11, the radiator includes being located at 11 side of tank shell
Radiate gas vent 14 and heat dissipation exhaust fan 15, and the fan blade of heat dissipation exhaust fan 15 faces heat dissipation gas vent 14, and radiate gas vent 14
Be equipped between heat dissipation exhaust fan 15 it is detachable, can the strainer replaced of periodic cleaning.
The bracket component 13 includes the guide rail 131 being located on 11 bottom plate of tank shell, and draw runner is equipped on guide rail 131
132, support plate 133 on draw runner 132 is set, is equipped with supporting rack 134 on support plate 133, four corners of supporting rack 134 by
Screw is fixedly connected on support plate 133, and arc regulating tank 135, the laser projection are equipped on the support plate 133 of opposite sides
2 are fixed on supporting rack 134, described that vibration-proof structure is equipped between stent 33 and laser projection 2, which is to subtract
Shake spring leaf or damping rubber pad.
Proof cabinet 1 be equipped with can shutter door 16, the anti-reflection glass 161 of perforate installation high-quality on door, light transmittance is up to 95%
More than, including anti-reflection face, the light extraction light intensity of projector 2 is made to decay after anti-reflection glass 161 less, and is ensured infrared distant
Control device can control the special projector of subway, the typical sizes 340mm*360mm* of anti-reflection glass 161 at platform, shield door
5mm。
DVI/ optic fiber converters, serial ports/optic fiber converter, control/vision cable, optical fiber, light are additionally provided in proof cabinet 1
Fine coupler.In this way, image and video can be provided from internet net, computer, USB, subway play system etc. to laser projection
Broadcast source；There is infrared remote control to carry out execute-in-place, 5 meters of distance or more.
Light valve is equipped in laser projection 2, coordinates software, meets a key and hides screen function.When subway enters the station, moment throws
For the output of shadow machine without light extraction, the passenger in platform can can't see any image or light in the fixed door of subway shield door.
After subway leaves platform, moment projector's output recovers light extraction, and the passenger in platform can consolidating in subway shield door
Determine to see image or video on door, it is exactly to solve the problems, such as this to set light valve.
RS485 interfaces are equipped in laser projection 2, it can remote operation control, communication, inspection.
Electronic amasthenic lens built in the special laser projection 2 of subway, transmittance 1.0-1.7：1, meet and thrown across Gui Hang areas
It is mapped on fixed mask door, about 3.5-4 meters of distance, the requirements such as 2.5 meters * 1.8 meters of display area；Carry corner Geometry rectification and
The functions such as trapezoidal correction, debugging are convenient, fast；Go out luminous intensity more than 7000 lumens and to go out luminous intensity adjustable, can for a long time, stablize
Comfort level and experience sense when watching image or video of the passenger that meets in platform.
The optics and electric part of the special laser projection 2 of subway are whole as a closing, using rubber pad and surrounding
Other parts are isolated, and internal heat passes through its cooling fin export simultaneously forced cooling, and to corresponding turnover pipeline, video
Cable, service cable, control cable employ waterproof sealing processing, reached light intensity decays slow down, optics and electrical
Part is more robust because of free from dust.
As Figure 7-8, size 585mm*380mm*196mm during subway special 2 projection containing camera lens of projector,
No matter horizontal when installing still tilt 20-30 °, as can be seen from Figure 7, the special projector 2 of subway on bracket component inside proof cabinet 1
The floor projection size (depth) of in-orbit row area section is respectively less than 420mm；The size of proof cabinet 1 is 800mm*450mm*500mm,
The installation and adjustment of the special projector 2 of subway are just reached.
The fitted position of proof cabinet 1 and the special laser projection 2 of subway is fitted close, compact and reasonable, their organic collection
Appearance and size after, simply in the external dimensions of proof cabinet 1, the size of proof cabinet 1 is 800mm*450mm*500mm, this can
Ensure that the special laser projector system of subway meets floor projection of the subway platform Gui Hang areas to the in-orbit row area section of subway equipment
Size (depth) is respectively less than the facilities clearance requirement of 450mm.
Using stainless steel, the body structure of proof cabinet 1 using aluminum alloy square is led to, is external bracket component 13 in proof cabinet 1
It is riveted using 1.0mm aluminium sheets, overall weight is mitigated using stainless steel more than 18Kg than completely.Equal oxidizing blackening inside and outside proof cabinet
Or the black powder processing of spray, reduce light pollution.
Claims (10)
1. a kind of special laser projector system of subway, it is characterised in that including proof cabinet (1), be equipped with and swash in proof cabinet (1)
Light projector (2).
A kind of 2. special laser projector system of subway according to claim 1, it is characterised in that proof cabinet (1) bag
Tank shell (11) is included, the supporting block (12) being connected with stent wall is equipped in tank shell (11) bottom, it is living in tank shell (11)
It is dynamic to be equipped with the bracket component (13) for placing laser projection (2), radiator, the radiator are equipped in tank shell (11)
Including being located at the heat dissipation gas vent (14) of tank shell (11) side and heat dissipation exhaust fan (15), the fan blade of heat dissipation exhaust fan (15) is just
Against heat dissipation gas vent (14), be equipped between heat dissipation gas vent (14) and heat dissipation exhaust fan (15) detachably, can periodic cleaning
The strainer of replacement.
A kind of 3. special laser projector system of subway according to claim 2, it is characterised in that the bracket component
(13) include the guide rail (131) being located on tank shell (11) bottom plate, draw runner (132) is equipped on guide rail (131), in draw runner
(132) support plate (133) on is set, is equipped with supporting rack (134) on support plate (133), four corners of supporting rack (134) by
Screw is fixedly connected on support plate (133), and arc regulating tank (135), the laser are equipped on the support plate (133) of opposite sides
Projector (2) is fixed on supporting rack (134), described that vibration-proof structure is equipped between stent (33) and laser projection (2), should
Vibration-proof structure is damping spring reed or damping rubber pad.
4. the special laser projector system of a kind of subway according to claim 3, it is characterised in that proof cabinet 1 is equipped with and can open
Door (16) is closed, the anti-reflection glass (161) of perforate installation high-quality, light transmittance including anti-reflection face, make throwing up to more than 95% on door
The light extraction light intensity of shadow machine 2 decays less after anti-reflection glass (161), and ensures that IR remote controller can be in platform, shielding
The special projector of subway, the typical sizes 340mm*360mm*5mm of anti-reflection glass (161) are controlled at door.
A kind of 5. special laser projector system of subway according to claim 3, it is characterised in that the proof cabinet (1)
Inside it is additionally provided with DVI/ optic fiber converters, serial ports/optic fiber converter, control/vision cable, optical fiber, fiber coupler.
6. the special laser projector system of a kind of subway according to claim 1 or 2 or 3, it is characterised in that thrown in laser
Light valve, Power focus, electricity driving displacement camera lens, lens transmissivity 1.0-1.7 built in laser projection (2) are equipped in shadow machine (2)：1,
Carry corner Geometry rectification and trapezoidal correction function；There are RS485 interfaces；It is more than 7000 lumens and adjustable to go out luminous intensity.
A kind of 7. special laser projector system of subway according to claim 6, it is characterised in that laser projection (2) light
It learns and electric part is whole as a closing, isolated using rubber pad and surrounding other parts, internal heat passes through
The export of its cooling fin and forced cooling, and corresponding turnover pipeline, vision cable, service cable, control cable are employed
Waterproof sealing processing.
8. the special laser projector system of a kind of subway according to claim 6, it is characterised in that laser projection (2) is outside
Shape size is size 585mm*380mm* during projection containing camera lens without camera lens projection 585mm*356mm*196mm
196mm。
9. the special laser projector system of a kind of subway according to claim 6, it is characterised in that the proof cabinet (1)
Size is 800mm*450mm*500mm；It disclosure satisfy that the installation and adjustment of the special projector of subway (2).
A kind of 10. special laser projector system of subway according to claim 6, it is characterised in that the proof cabinet (1)
Body structure is led to using aluminum alloy square, is external using the riveting of 1.0mm aluminium sheets；Proof cabinet (1) the body structure ectonexine is all provided with
There are oxidizing blackening or the black bisque of spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816940.7U CN207457681U (en) | 2017-07-06 | 2017-07-06 | A kind of special laser projector system of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816940.7U CN207457681U (en) | 2017-07-06 | 2017-07-06 | A kind of special laser projector system of subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207457681U true CN207457681U (en) | 2018-06-05 |
Family
ID=62247479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720816940.7U Active CN207457681U (en) | 2017-07-06 | 2017-07-06 | A kind of special laser projector system of subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207457681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143741A (en) * | 2018-10-10 | 2019-01-04 | 北京数科技有限公司 | A kind of projector with detachable protective device |
| CN112068387A (en) * | 2020-09-25 | 2020-12-11 | 广州互媒盈动文化传媒科技有限公司 | Remote multimedia information receiving terminal |
-
2017
- 2017-07-06 CN CN201720816940.7U patent/CN207457681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143741A (en) * | 2018-10-10 | 2019-01-04 | 北京数科技有限公司 | A kind of projector with detachable protective device |
| CN112068387A (en) * | 2020-09-25 | 2020-12-11 | 广州互媒盈动文化传媒科技有限公司 | Remote multimedia information receiving terminal |
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