CN209470076U - A kind of secure tunnel lighting device - Google Patents
A kind of secure tunnel lighting device Download PDFInfo
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- CN209470076U CN209470076U CN201920215180.3U CN201920215180U CN209470076U CN 209470076 U CN209470076 U CN 209470076U CN 201920215180 U CN201920215180 U CN 201920215180U CN 209470076 U CN209470076 U CN 209470076U
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- secure tunnel
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Abstract
The utility model belongs to the technical field of lighting fixtures more particularly to a kind of secure tunnel lighting device of Tunnel Engineering.The technical solution that the utility model passes through adjustable lamp cap, the cable with magnetic adsorbing block and the lamp holder including universal joint, connecting shaft and magnetic absorption device, it is combined using magnetic, electricity, wireless feedback, establish multi partitioning mechanism systemization control tunnel illumination equipment, both it can achieve terminal illumination and saved electric energy, it is easy to repair rapid feedback to be provided to the lighting apparatus problem again, while effectively reducing danger of hazardous electrical discharges.The utility model can save electric energy according to actual use demand by multi-gear adjustable illumination.With strong magnet can any adjusting illuminating lamp tool absorption position and can control the switch of power supply；Circuit control with remote diagnosis feedback mechanism, the cable with magnetic block can avoid prolapsing on arch with being quickly firmly secured to cable with quick Fabrication multiple groups illuminator line group, effectively prevent the safety accident caused by falling off because of cable.
Description
Technical field
The utility model belongs to the technical field of lighting fixtures more particularly to a kind of secure tunnel illumination dress of Tunnel Engineering
It sets.
Background technique
The tunnel illumination equipment of effective and safe is one of guarantee of tunnel Engineering safe.Currently, tunnel illumination is adopted more
Illumination is realized with the illuminator temporarily installed or the preparatory illuminations being connected on trolley or inverted arch.The illumination temporarily installed
Tool, the route of illumination tend not to protect well, leaky often occur, increase constructing tunnel risk or due to open circuit
Lighting apparatus is caused to fail.The lighting apparatus being pre-installed on arch causes to illuminate since its position is unadjustable with angle
The appearance of blind area, impacts constructing tunnel.And since existing tunnel lighting apparatus does not have feedback device, illumination is caused to set
Overhaul efficiency and construction are influenced for, generally requiring to check one by one when something goes wrong.
Utility model content
The utility model provides a kind of secure tunnel lighting device, and the first purpose, which is to provide a kind of illumination and can go directly, to be applied
Work point, with the tunnel illuminating device for the electric energy that saves lighting；The second purpose is to provide a kind of pair of lighting apparatus problem and provides
Rapid feedback is easy to repair and can effectively reduce the tunnel illuminating device of danger of hazardous electrical discharges.
The utility model to achieve the goals above, the technical solution adopted is that:
A kind of secure tunnel lighting device, including
Control device is electrically connected with external power switch；
Lamp cap is connect through external power switch with external power supply by cable；
Lamp holder, including fixing piece and connector, one end connection fixture of connector, the other end and lamp cap of connector connect
It connects, fixing piece is electrically connected with control device.
The control device includes that signal generation apparatus, signal receiving device, signal generating box, signal receive box and remote
Process control cabinet；The signal generation apparatus is electrically connected with signal receiving device；The signal generation apparatus is connected to signal
In generating box, signal generating box is connected on the connector of lamp holder；The signal receiving device is connected to signal and receives in box,
Signal receives box and is connected in long-distance control cabinet；Long-distance control cabinet is connected with external power supply；Lamp cap passes through cable and long-range control
External power supply connection on cabinet processed.
Multiple state display lamps, the transmitting terminal point of the signal receiving device are provided on the panel of the control cabinet
It is not electrically connected from different state display lamps.
The signal generation apparatus includes that micro-current experiences module, light experiences module, illumination electroreception module, first
Signal processing module, power module and signal emission module；Micro-current experiences module, light experiences module, illumination electroreception mould
Block is electrically connected with the first signal processing module respectively, and the first signal processing module is electrically connected with signal emission module, signal transmitting
Module is electrically connected with signal receiving device；Power module experiences module with micro-current respectively, light experiences module, illumination electroreception
Module, the first signal processing module are connected with signal emission module；The signal receiving device includes signal receiving module,
Binary signal processing module and bright light control module；Signal receiving module is electrically connected with second signal processing module, signal processing mould
Block is electrically connected with bright light control module.
The fixing piece is magnetic absorption device；The magnetic absorption device includes lamps and lanterns strong magnet and the strong magnetic of absorption
One end of iron, lamps and lanterns strong magnet one side center and connector connects, and the another side magnetic absorption of lamps and lanterns strong magnet has absorption
Strong magnet.
The lamps and lanterns strong magnet includes three sections of upper, middle and lower, and two sections are magnet, and the height of two sections magnet is identical,
Middle section is the first collets；The absorption strong magnet includes three sections of upper, middle and lower, and two sections are magnet, two sections magnet
Highly identical, middle section is the second collets；First collets and the second collets height are identical.
The connector includes two universal joints and connecting shaft；The both ends of connecting shaft one end with a universal joint respectively
Connection, the other end of two universal joints are separately connected lamp cap and lamps and lanterns strong magnet.
The universal joint is to be connect by being connected to the connecting plate of universal joint end with lamp cap.
It further include hub；Multiple magnetic adsorbing blocks are connected on the cable；It is connected with multiple magnetic adsorbing blocks
Cable be placed in hub, hub is connected on lamp holder；The lamp cap is brightness dimmable lamp.
Multiple magnetic adsorbing blocks are connected on cable at equal intervals；The hub is magnetic hub.
The utility model has the beneficial effects that
The utility model by adjustable lamp cap, the cable with magnetic adsorbing block and including universal joint, connecting shaft and
The technical solution of the lamp holder of magnetic absorption device is combined using magnetic, electricity, wireless feedback, establishes multi partitioning mechanism system
Tunnel illumination equipment is controlled, terminal illumination had not only been can achieve and has saved electric energy, but also the lighting apparatus problem can be provided quick
It feeds back easy to repair, while effectively reducing danger of hazardous electrical discharges.The utility model can be according to actually making by multi-gear adjustable illumination
Electric energy is saved with demand.With strong magnet can any adjusting illuminating lamp tool absorption position and can control the switch of power supply；It has
The circuit control of remote diagnosis feedback mechanism, the cable with magnetic block can with quick Fabrication multiple groups illuminator line group and quickly
Cable is firmly secured to and avoids prolapsing on arch, effectively prevents the safety accident caused by falling off because of cable.Line concentration
The use of device, so that cable can be stored neatly, be avoided because of cable when not using secure tunnel lighting device
Caused accident is left about to occur.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the utility model front view；
Fig. 2 is the utility model top view；
Fig. 3 is the utility model cable connection schematic diagram；
Fig. 4 is the utility model cable boundling operation schematic diagram；
Fig. 5 is the utility model control testing process schematic diagram；
Fig. 6 is the utility model control cabinet panel layout diagram.
In figure: 1- first insulate fastly；2- adsorbs strong magnet；3- lamps and lanterns strong magnet；4- cable；5- signal generating box；6-
Universal joint；7- lamp cap；8- threading hole；9- magnetic adsorbing block；10- control cabinet；11- connecting shaft；12- connecting plate；13- general supply is opened
It closes；14- power supply line connects indicator light；15- short circuit indicator light；16- works normally indicator light；17- lamps and lanterns fall off indicator light；18-
Signal receives box；The second collets of 19-.
Solid box is control cabinet end feedback in Fig. 5, and dotted line frame is remote transmission end.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
A kind of secure tunnel lighting device as shown in figures 1 to 6, including
Control device is electrically connected with external power switch；
Lamp cap 7 is connect through external power switch with external power supply by cable 4；
Lamp holder, including fixing piece and connector, one end connection fixture of connector, the other end and lamp cap 7 of connector
Connection, fixing piece are electrically connected with control device.
In actual use, in the place that needs illuminate, lamp holder is made into lamp cap and construction by fixing piece at any time, easily
On steel trolley, trestle in tunnel or arch connection, fixing piece form access after being fixedly connected and form electric signal, control device
It receives and controls total power switch after connecting signal, connect power supply for lamp cap 7, work normally lamp cap.It avoids the need for illuminating
Position be blind area the case where occur.The design scheme of the utility model facilitates the movement of illuminator, avoids unnecessary
Waste ensure that the needs of normal construction illumination.
Embodiment two:
As shown in Figure 1, Figure 2 and a kind of secure tunnel lighting device shown in fig. 5, with embodiment one the difference is that: it is described
Control device include that signal generation apparatus, signal receiving device, signal generating box 5, signal receive box 18 and long-distance control cabinet
10；The signal generation apparatus is electrically connected with signal receiving device；The signal generation apparatus is connected to signal generating box 5
Interior, signal generating box 5 is connected on the connector of lamp holder；The signal receiving device is connected to signal and receives in box 18, letter
Number receive box 18 be connected in long-distance control cabinet 10；Long-distance control cabinet 10 is connected with external power supply；Lamp cap 7 by cable 4 with
External power supply connection on long-distance control cabinet 10.
In actual use, signal generation apparatus pass through receive in lighting process occur lamp cap damage after power-off,
Lamp cap goes out without electricity, line impairments, lamp cap from unlike signal when fixing the situations such as power-off after position falls off, to signal receiving device
It sends；Signal receiving device determined by the working state signal of lighting apparatus received, facilitates malfunction elimination and in time
Power-off.The cable 4 of connection is concentrated connection by magnetic line concentrator, and route confusion is avoided to cause the accident.
Embodiment three:
A kind of secure tunnel lighting device as shown in FIG. 6, with embodiment two the difference is that: the control cabinet 10
Panel on be provided with multiple state display lamps, the transmitting terminal of the signal receiving device respectively from different state display lamps
Electrical connection.
In actual use, it is provided with the state display lamp of different colours on the panel of control cabinet 10, is controlled in the present embodiment
It is provided with total power switch 13 on 10 panel of cabinet processed, power supply line connection indicator light 14, short-circuit indicator light 15, works normally indicator light
16, lamps and lanterns fall off indicator light 17.It can also add or reduce according to actual needs the setting of indicator light, the color of indicator light can be with
It is configured according to habit, it in this way can be convenient for observation and judgement.Lamp cap is judged by the display for the different indicator lights observed
And the working condition of power supply line.
The technical solution of the utility model can quickly determine distal end illumination equipment situation by state display lamp, convenient
Malfunction elimination and maintenance, and can guarantee the reliability of equipment.
Example IV:
As shown in Figure 1, Figure 2 and a kind of secure tunnel lighting device shown in fig. 5, with embodiment two the difference is that: it is described
Signal generation apparatus include micro-current experiences module, light experiences module, illumination electroreception module, the first signal processing mould
Block, power module and signal emission module；Micro-current experiences module, light experiences module, illumination electroreception module is respectively with the
The electrical connection of one signal processing module, the first signal processing module are electrically connected with signal emission module, signal emission module and signal
Receiving device electrical connection；Power module experiences module with micro-current respectively, light experiences module, illumination electroreception module, first
Signal processing module is connected with signal emission module；The signal receiving device includes signal receiving module, at second signal
Manage module and bright light control module；Signal receiving module is electrically connected with second signal processing module, signal processing module and bright light
Control module electrical connection.
In actual use, it is provided with power module in the signal generation apparatus, it can be when cable 4 be cold
It waits, signal generation apparatus still is able to normally be worked.Micro-current in signal generation apparatus experiences module and is used to differentiate
Whether lamps and lanterns fall off, and signal can be generated when the fixing piece on lamp holder fixes lamp holder, and signal generation apparatus receives this letter
Number and this signal is sent to signal receiving device through the first signal processing module and signal emission module, signal receiving device connects
After receiving signal, turn on automatically external power supply is powered for entire illuminating line.Whether just light experience module for differentiating lamps and lanterns
Often work, light experience module by receiving the light information of headlamp, provide the real-time work of headlamp for bright light control module
Make situation.Illumination electroreception module is used to differentiate whether route is normal, and illumination electroreception module is by receiving the power supply of power for illumination
Situation is sent to signal receiving device by real-time illuminating position information by the first signal processing module and signal emission module,
Information is provided for line upkeep.First signal processing module is used to encode induction result, is emitted by signal emission module
Extremely it is located at the receiving module of control cabinet section, then is controlled by second signal processing module and open corresponding trouble light, and made and powering off/send
The movement such as electricity.Micro-current in the present embodiment experiences module and experiences module device, light sense using the micro-current of the prior art
By module using the prior art light receptor, illumination electroreception module using the prior art illumination electroreception
Device, the first signal processing module connect using the single-chip microcontroller of the prior art, signal receiving module using the prior art
Receipts machine, second signal processing module using the prior art single-chip microcontroller.Using the single-chip microcontroller of the prior art, as long as can be complete
At the coding and decoding of signal.
The technical solution of the utility model easily controls lamp cap into for power-off, convenient to the real time status of circuit
Understood, the various different situations of appearance can be handled timely.
Embodiment five:
A kind of secure tunnel lighting device as shown in Figs. 1-2, with embodiment one the difference is that: the fixing piece
It is magnetic absorption device；The magnetic absorption device includes lamps and lanterns strong magnet 3 and absorption strong magnet 2,3 side of lamps and lanterns strong magnet
Face center and one end of connector connect, and the another side magnetic absorption of lamps and lanterns strong magnet 3 has absorption strong magnet 2.
In actual use, lamp cap includes lamps and lanterns strong magnet 3 and the magnetic for adsorbing strong magnet 2 by the inclusion of magnetic absorption device
Property adsorbent equipment, illumination region is being needed, by lamps and lanterns strong magnet 3 and absorption 2 relative adsorption of strong magnet in needing illumination region
On trolley or trestle.Weak current can be generated after lamps and lanterns strong magnet 3 and absorption strong magnet 2 adsorb, control device receives this
After low current signal, external power switch is controlled as lamp cap power supply；When lamps and lanterns strong magnet 3 and absorption strong magnet 2 accidentally separate
Fall, control device can't detect low current signal, then automatically shuts power off switch.The design scheme of the utility model, side
Just needing the region that illuminates to install secure tunnel lighting device, avoid unnecessary waste and needs illuminate and
Lack the phenomenon that illumination is arranged.
Embodiment six:
A kind of secure tunnel lighting device as shown in Figs. 1-2, with embodiment five the difference is that: the lamps and lanterns are strong
Magnet 3 includes three sections of upper, middle and lower, and two sections are magnet, and the height of two sections magnet is identical, and middle section is the first collets 1；
The absorption strong magnet 2 includes three sections of upper, middle and lower, and two sections are magnet, and the height of two sections magnet is identical, and middle section is
Second collets 19；First collets 1 and 19 height of the second collets are identical.
In actual use, the technical program can preferably realize absorption fixed function, and the setting of the first collets 1 is just
In the connection with connector；Second collets 19 are set and the first collets 1 and the identical technical side of the height of the second collets 19
Case, can either guarantee good adsorption effect again and can make to fall off caused by collision is quickly reconnected by magnet.
Embodiment seven:
A kind of secure tunnel lighting device as shown in Figs. 1-2, with embodiment six the difference is that: the connector
Including two universal joints 6 and connecting shaft 11；The both ends of connecting shaft 11 are connect with one end of a universal joint 6 respectively, and two universal
The other end of section 6 is separately connected lamp cap 7 and lamps and lanterns strong magnet 3.
In actual use, the technical solution of the utility model can be easily by lamp cap 7 by adjusting universal joint 6
Light angle is adjusted, and avoids the presence at illumination dead angle.
Embodiment eight:
A kind of secure tunnel lighting device as shown in Figs. 1-2, with embodiment seven the difference is that: the universal joint
6 be to be connect by being connected to the connecting plate 12 of 6 end of universal joint with lamp cap 7.
In actual use, universal joint 6 is by connecting plate 12 and lamp cap 7, so that the stability of connection is protected, it is ensured that
Construction carries out under the environment of safety.Magnetic adsorbing block 9 is connected on the cable 4.
Embodiment nine:
A kind of secure tunnel lighting device as shown in Figure 3-4, with embodiment one the difference is that: further include line concentration
Device；Multiple magnetic adsorbing blocks 9 are connected on the cable 4；The cable 4 for being connected with multiple magnetic adsorbing blocks 9 is placed in collection
In line device, hub is connected on lamp holder；The lamp cap 7 is brightness dimmable lamp.
When needing to install secure tunnel lighting device, the electricity for being connected with multiple magnetic adsorbing blocks 9 is taken out out of hub
Cable 4 is fixed on arch or trestle by cable 4 by magnetic adsorbing block 9.It needs using multiple groups secure tunnel lighting device
When, multiple groups lamp cable 4 is adhered to each other by magnet, is fixedly connected, effectively prevents after forming cable boundling
Because cable prolapsus leads to the generation of the accidents such as line impairment leak electricity short-circuit.Using the technical solution of hub, without using electricity
When cable, convenient for the storage of cable 4, it will not cause the accident because of random draw of cable.Lamp cap 7 uses brightness dimmable lamp, being capable of basis
The brightness of illumination of construction needs to carry out the adjustment of brightness, has saved electric energy to a certain extent, avoids waste.In the present embodiment
The lamp cap 7 guarantees fine construction using two grades of adjustable reflector lamps, under strong light state, guarantees that illumination needs in the case of dim light
It asks.Dimmable lamp in the present embodiment is using adjustable LED light.
Embodiment ten:
A kind of secure tunnel lighting device as shown in Figure 3-4, with embodiment nine the difference is that: multiple magnetic
Property Attraction block 9 is connected at equal intervals on cable 4；The hub is magnetic hub.
In actual use, being fixed conveniently for hub, hub can be using magnetic hubs, easily by magnetic
Property hub is adsorbed on lamp holder.Multiple magnetic adsorbing blocks 9 are connected at equal intervals on cable 4, can be easily by cable 4
It is adsorbed on trolley and trestle, route is avoided to prolapse, lead to the generation of the accidents such as line impairment, leak electricity short-circuit, improve tunnel
The safety of work, effect are preferable.
In conclusion technical solution of the utility model by adjustable lamp cap, the lamp holder for connecting the line concentrator that is magnetic,
It is combined using magnetic, electricity, wireless feedback, establishes multi partitioning mechanism systemization control tunnel illumination equipment, both can achieve end
Electric energy is saved in point illumination, and it is easy to repair to provide the lighting apparatus problem rapid feedback, while effectively reducing leakage
It is electric dangerous.The utility model can save electric energy according to actual use demand by multi-gear adjustable illumination.It can appoint with strong magnet
The absorption position that adjusting illuminating lamp of anticipating has；Circuit control with remote diagnosis feedback mechanism, the cable with magnetic block can be with
Quick Fabrication multiple groups illuminator line group avoids prolapsing on arch with being quickly firmly secured to cable, effectively prevents because of electricity
Safety accident caused by cable from falling.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
Technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.
Claims (10)
1. a kind of secure tunnel lighting device, it is characterised in that: including
Control device is electrically connected with external power switch；
Lamp cap (7) is connect through external power switch with external power supply by cable (4)；
Lamp holder, including fixing piece and connector, one end connection fixture of connector, the other end of connector and lamp cap (7) are even
It connects, fixing piece is electrically connected with control device.
2. a kind of secure tunnel lighting device as described in claim 1, it is characterised in that: the control device includes signal
Generating device, signal receiving device, signal generating box (5), signal receive box (18) and long-distance control cabinet (10)；The signal
Generating device is electrically connected with signal receiving device；The signal generation apparatus is connected in signal generating box (5), and signal occurs
Box (5) is connected on the connector of lamp holder；The signal receiving device is connected to signal and receives in box (18), and signal receives box
(18) it is connected in long-distance control cabinet (10)；Long-distance control cabinet (10) is connected with external power supply；Lamp cap (7) passes through cable (4)
It is connect with the external power supply on long-distance control cabinet (10).
3. a kind of secure tunnel lighting device as claimed in claim 2, it is characterised in that: the panel of the control cabinet (10)
On be provided with multiple state display lamps, the transmitting terminal of the signal receiving device is electrically connected from different state display lamps respectively
It connects.
4. a kind of secure tunnel lighting device as claimed in claim 2, it is characterised in that: the signal generation apparatus includes
Micro-current experiences module, light experiences module, illumination electroreception module, the first signal processing module, power module and signal are sent out
Penetrate module；Micro-current experiences module, light experiences module, illumination electroreception module is electrically connected with the first signal processing module respectively
It connects, the first signal processing module is electrically connected with signal emission module, and signal emission module is electrically connected with signal receiving device；Power supply
Module experiences module with micro-current respectively, light experiences module, illumination electroreception module, the first signal processing module and signal are sent out
Penetrate module connection；The signal receiving device includes signal receiving module, second signal processing module and bright light control module；
Signal receiving module is electrically connected with second signal processing module, and signal processing module is electrically connected with bright light control module.
5. a kind of secure tunnel lighting device as described in claim 1, it is characterised in that: the fixing piece is magnetic absorption
Device；The magnetic absorption device includes lamps and lanterns strong magnet (3) and adsorbs strong magnet (2), in lamps and lanterns strong magnet (3) one side
The connection of one end of the heart and connector, the another side magnetic absorption of lamps and lanterns strong magnet (3) have absorption strong magnet (2).
6. a kind of secure tunnel lighting device as claimed in claim 5, it is characterised in that: lamps and lanterns strong magnet (3) packet
Three sections of upper, middle and lower are included, two sections are magnet, and the height of two sections magnet is identical, and middle section is the first collets (1)；Described
Adsorbing strong magnet (2) includes three sections of upper, middle and lower, and two sections are magnet, and the height of two sections magnet is identical, and middle section is second
Collets (19)；First collets (1) are identical with the second collets (19) height.
7. a kind of secure tunnel lighting device as described in claim 1, it is characterised in that: the connector includes two ten thousand
Xiang Jie (6) and connecting shaft (11)；The both ends of connecting shaft (11) are connect with one end of a universal joint (6) respectively, two universal joints
(6) the other end is separately connected lamp cap (7) and lamps and lanterns strong magnet (3).
8. a kind of secure tunnel lighting device as claimed in claim 7, it is characterised in that: the universal joint (6) is to pass through
The connecting plate (12) for being connected to universal joint (6) end is connect with lamp cap (7).
9. a kind of secure tunnel lighting device as described in claim 1, it is characterised in that: further include hub；The electricity
Multiple magnetic adsorbing blocks (9) are connected on cable (4)；The cable (4) for being connected with multiple magnetic adsorbing blocks (9) is placed in hub
Interior, hub is connected on lamp holder；The lamp cap (7) is brightness dimmable lamp.
10. a kind of secure tunnel lighting device as claimed in claim 9, it is characterised in that: multiple magnetic adsorbing blocks
(9) it is connected at equal intervals on cable (4)；The hub is magnetic hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215180.3U CN209470076U (en) | 2019-02-20 | 2019-02-20 | A kind of secure tunnel lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215180.3U CN209470076U (en) | 2019-02-20 | 2019-02-20 | A kind of secure tunnel lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209470076U true CN209470076U (en) | 2019-10-08 |
Family
ID=68094933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920215180.3U Expired - Fee Related CN209470076U (en) | 2019-02-20 | 2019-02-20 | A kind of secure tunnel lighting device |
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| Country | Link |
|---|---|
| CN (1) | CN209470076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708038A (en) * | 2019-02-20 | 2019-05-03 | 中铁隧道集团二处有限公司 | A kind of secure tunnel lighting device |
-
2019
- 2019-02-20 CN CN201920215180.3U patent/CN209470076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708038A (en) * | 2019-02-20 | 2019-05-03 | 中铁隧道集团二处有限公司 | A kind of secure tunnel lighting device |
| CN109708038B (en) * | 2019-02-20 | 2024-05-03 | 中铁隧道集团二处有限公司 | Safety tunnel lighting device |
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Granted publication date: 20191008 |