CN107477509A - A kind of municipal administration underground lamp - Google Patents
A kind of municipal administration underground lamp Download PDFInfo
- Publication number
- CN107477509A CN107477509A CN201710948952.XA CN201710948952A CN107477509A CN 107477509 A CN107477509 A CN 107477509A CN 201710948952 A CN201710948952 A CN 201710948952A CN 107477509 A CN107477509 A CN 107477509A
- Authority
- CN
- China
- Prior art keywords
- lamp
- municipal administration
- heat
- electrically connected
- light
- 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.)
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Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
- F21S9/037—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit and the lighting unit being located within or on the same housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
- F21V21/096—Magnetic devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/109—Outdoor lighting of gardens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention discloses a kind of municipal administration underground lamp, including lamp top cover, lamp chamber and lamp base, it is characterised in that：Annular groove is offered on the outer edge of the lamp top cover；The lamp chamber is divided into illumination lamp chamber and heat-dissipating cavity two parts, and separated by dividing plate；The center bottom of the illumination lamp chamber is threaded with light-guiding pillar；LED illumination lamp is electrically connected with the top of the light-guiding pillar；Solar panel is threaded with around the light-guiding pillar；The outside of the heat-dissipating cavity is provided with heat dissipation channel；The interior bottom portion of the heat-dissipating cavity is threaded with radiator；Radiating fin is offered on the heat dissipation channel；The lower section both sides of the lamp base are pasted with adsorption magnet, and the present invention is simple in construction, easy for installation, Stability Analysis of Structures, service life length, antiskid performance are good, radiating effect and good sealing effect, improve electrical safety, the mode of magnetic installation, it is convenient and swift, the time is saved, luminosity sensor collection luminosity information, flexibly, electric energy is saved, reduces cost.
Description
Technical field
The present invention relates to municipal field, specially a kind of municipal administration underground lamp.
Background technology
Underground lamp is the light fixture for being embedded in earth's surface, is generally used for square, shopping centre, park, tourist attractions lamp ground decoration,
Can beautify the environment and can illuminate environment, the underground lamp that municipal administration is used now be all mostly metal halide lamp, fluorescent belt and
LED, the above two use cost is relatively low, but the life-span is not grown, and this several lamp source can produce under prolonged working condition
Raw many heats, heating can cause the temperature on underground lamp surface too high, so as to cause certain peace to visitor especially child
Full hidden danger.In addition, prolonged power consumption can increase the cost of municipal administration input, and switch needs manual control, has very
More inconvenience, so needing to be improved this, to improve its security and practicality.
The content of the invention
It is an object of the invention to provide a kind of municipal administration underground lamp, to solve the problems mentioned in the above background technology.
The invention provides a kind of municipal administration underground lamp, including lamp top cover, lamp chamber and lamp base, it is characterised in that：It is described
Annular groove is offered on the outer edge of lamp top cover；The lamp chamber is divided into illumination lamp chamber and heat-dissipating cavity two parts, and by dividing plate point
Isolate；The center bottom of the illumination lamp chamber is threaded with light-guiding pillar；LED photographs are electrically connected with the top of the light-guiding pillar
Bright lamp；Solar panel is threaded with around the light-guiding pillar；The outside of the heat-dissipating cavity is provided with heat dissipation channel；
The interior bottom portion of the heat-dissipating cavity is threaded with radiator；Radiating fin is offered on the heat dissipation channel；The lamp bottom
The lower section both sides of seat are pasted with adsorption magnet；Luminosity sensor is pasted with the lower surface of the lamp top cover.
Pass through above-mentioned technical proposal, municipal administration include lamp top cover, lamp chamber and lamp base with underground lamp, the annular groove in lamp top cover
It is easy to seal, prevents rainwater to be immersed in lamp chamber, lamp chamber is divided into illumination lamp chamber and heat-dissipating cavity two parts, and is separated by dividing plate
Coming, light-guiding pillar is transferred electrical energy into LED illumination lamp, and solar panel converts solar energy into electrical energy, and can save electric energy,
Environmentally friendly great efforts, heat dissipation channel and radiator in heat-dissipating cavity can fall heat consumption caused by illumination, and reduction personnel are scalded
The situation of wound, security is improved, radiating fin improves the efficiency of radiating, and the adsorption magnet of lamp base is convenient to be installed, and luminosity passes
Sensor senses real-time brightness, and the working condition of LED illumination lamp can be controlled according to brightness, saves electric energy, reduces and wastes money
The situation in source, reduces cost.
Preferably, the lamp top cover is made up of transparent acrylic material, and is provided with skid resistance strip on its surface.
Pass through above-mentioned technical proposal, it is made of transparent acrylic material, Stability Analysis of Structures, skid resistance strip can increase and row
The frictional force of passerby's sole, reduce situation about slipping.
Preferably, the output end of the solar panel is electrically connected with savings battery component.
Pass through above-mentioned technical proposal, stable electric power must be stored using savings battery component, improve the safety of electricity consumption
Property.
Preferably, the output end of the savings battery component is electrically connected with aluminum-based circuit board.
Preferably, light-guiding pillar and radiator are electrically connected in the aluminum-based circuit board.
Preferably, the savings battery component and aluminum-based circuit board are placed in inside heat-dissipating cavity.
Preferably, a circle waterproof sealing cushion rubber is cased with the annular groove.
Pass through above-mentioned technical proposal, sealing can be improved using waterproof sealing cushion rubber, the situation of short circuit is reduced, carry
The security of high electricity consumption.
Preferably, the earth's surface corresponding with adsorption magnet position is pasted with the earth's surface and fixes magnetic.
Preferably, the luminosity sensor is electrically connected with microprocessor.
Pass through above-mentioned technical proposal, using microprocessor processes monochrome information, when brightness is less than setting value, then it can export
The signal of unlatching, control the unlatching of LED illumination lamp.
Preferably, the side of the microprocessor is electrically connected with controlling switch, and its controlling switch is electrically connected at aluminium base
Wiring board.
Compared with prior art, the beneficial effects of the invention are as follows：This municipal administration is simple with buried modulated structure, easy for installation, knot
Structure is stable, service life length, has good antiskid performance, radiating effect and good sealing effect, improves electrical safety, use
The mode of magnetic installation, it is convenient and swift, the time is saved, luminosity sensor collection luminosity information, light switch is flexibly controlled, saves
Electric energy, reduce municipal cost.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the overall internal structure schematic diagram of the present invention；
Fig. 3 is the overall overlooking the structure diagram of the present invention；
Fig. 4 is the side structure schematic view of the heat dissipation channel of the present invention；
Fig. 5 is the overlooking the structure diagram of the lamp top cover of the present invention.
In figure：1- lamp top covers；2- lamp chambers；3- lamp bases；4- annular grooves；5- illuminates lamp chamber；6- heat-dissipating cavities；7- dividing plates；
8- light-guiding pillars；9-LED illuminating lamps；10- solar panels；11- heat dissipation channels；12- radiators；13- radiating fins；14- inhales
Attached magnet；15- luminosity sensors；16- skid resistance strips；17- saves battery component；18- aluminum-based circuit boards；19- waterproof gasket cements
Circle；20- earth's surfaces fix magnetic；21- microprocessors；22- controlling switches.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the embodiments of the invention provide a kind of municipal administration underground lamp, bag
Include lamp top cover 1, lamp chamber 2 and lamp base 3, it is characterised in that：Annular groove 4 is offered on the outer edge of the lamp top cover 1；The lamp
Chamber 2 divides to illuminate lamp chamber 5 and the two parts of heat-dissipating cavity 6, and separated by dividing plate 7；The center bottom spiral shell of the illumination lamp chamber 5
Line is connected with light-guiding pillar 8；The top of the light-guiding pillar 8 is electrically connected with LED illumination lamp 9；Surrounding's screw thread of the light-guiding pillar 8 connects
It is connected to solar panel 10；The outside of the heat-dissipating cavity 6 is provided with heat dissipation channel 11；The inner bottom of the heat-dissipating cavity 6
Portion is threaded with radiator 12；Radiating fin 13 is offered on the heat dissipation channel 11；Glue the lower section both sides of the lamp base 3
Post adsorption magnet 14；Luminosity sensor 15 is pasted with the lower surface of the lamp top cover 1；Municipal administration includes lamp top cover with underground lamp
1st, lamp chamber 2 and lamp base 3, the annular groove 4 in lamp top cover 1 are easy to seal, and prevent rainwater to be immersed in lamp chamber 2, and lamp chamber 2 is divided to shine
Bright lamp chamber 5 and the two parts of heat-dissipating cavity 6, and it is separated by dividing plate 7, light-guiding pillar 8 is transferred electrical energy into LED illumination lamp 9, too
It is positive can power generation plate 10 convert solar energy into electrical energy, can save electric energy, environmentally friendly great efforts, the heat dissipation channel in heat-dissipating cavity 6
11 and radiator 12 heat consumption caused by illumination can be fallen, reduce personnel scald situation, improve security, radiating fin
13 improve the efficiency of radiating, and the adsorption magnet 14 of lamp base 3 is convenient to be installed, and luminosity sensor 15 senses real-time brightness, can
To control the working condition of LED illumination lamp 9 according to brightness, electric energy is saved, the situation of waste of resource is reduced, reduces cost.
Further, the lamp top cover 1 is made up of transparent acrylic material, and skid resistance strip 16 is provided with its surface,
Stability Analysis of Structures, skid resistance strip 16 can increase the frictional force with walking along the street people's sole, reduce situation about slipping.
Further, the output end of the solar panel 10 is electrically connected with savings battery component 17, and electric energy is steady
Surely it must store, improve the security of electricity consumption.
Further, the output end of the savings battery component 17 is electrically connected with aluminum-based circuit board 18.
Further, light-guiding pillar 8 and radiator 12 are electrically connected in the aluminum-based circuit board 18.
Further, the savings battery component 17 and aluminum-based circuit board 18 are placed in inside heat-dissipating cavity 6.
Further, a circle waterproof sealing cushion rubber 19 is cased with the annular groove 4, sealing can be improved, reduces circuit
The situation of short circuit, improve the security of electricity consumption.
Further, the earth's surface corresponding with the position of adsorption magnet 14 is pasted with the earth's surface and fixes magnetic 20.
Further, the luminosity sensor 15 is electrically connected with microprocessor 21, monochrome information is handled, when brightness is less than
During setting value, then the signal of unlatching can be exported, control the unlatching of LED illumination lamp 9.
Further, the side of the microprocessor 21 is electrically connected with controlling switch 22, and its controlling switch 22 electrically connects
It is connected to aluminum-based circuit board 18.
The operation principle of the present invention：Municipal administration includes lamp top cover 1, lamp chamber 2 and lamp base 3 with underground lamp, the ring in lamp top cover 1
Shape groove 4 is cased with a circle waterproof sealing cushion rubber 19, can improve sealing, reduce the situation of short circuit, improve the safety of electricity consumption
Property prevent that rainwater is immersed in lamp chamber 2, lamp chamber 2 is divided for the illumination lamp chamber 5 and two parts of heat-dissipating cavity 6, and is separated by dividing plate 7
Come, light-guiding pillar 8 is transferred electrical energy into LED illumination lamp 9, and solar panel 10 converts solar energy into electrical energy, and can be saved
Electric energy, environmentally friendly great efforts, the output end of solar panel 10 are electrically connected with savings battery component 17, stable electric power must be deposited
Storage is got up, and improves the security of electricity consumption, and the output end of savings battery component 17 is electrically connected with aluminum-based circuit board 18, aluminium base circuit
Light-guiding pillar 8 and radiator 12 are electrically connected on plate 18, battery component 17 is saved and aluminum-based circuit board 18 is placed in heat dissipation cavity
Inside body 6, heat dissipation channel 11 and radiator 12 in heat-dissipating cavity 6 can fall heat consumption caused by illumination, reduce personnel
The situation of scald, security being improved, radiating fin 13 improves the efficiency of radiating, and the adsorption magnet 14 of lamp base 3 is convenient to be installed,
The earth's surface corresponding with the position of adsorption magnet 14 is pasted with earth's surface and fixes magnetic 20, luminosity sensor 15 senses real-time brightness,
Luminosity sensor 15 is electrically connected with microprocessor 21, handles monochrome information, when brightness is less than setting value, then can export unlatching
Signal, the side of microprocessor 21 is electrically connected with controlling switch 22, and its controlling switch 22 is electrically connected at aluminum-based circuit board
18 can control the working condition of LED illumination lamp 9 according to brightness, save electric energy, reduce the situation of waste of resource, reduce into
This, lamp top cover 1 is made up of transparent acrylic material, and skid resistance strip 16 is provided with its surface, Stability Analysis of Structures, skid resistance strip 16
The frictional force with walking along the street people's sole can be increased, reduce situation about slipping, this municipal administration is simple with buried modulated structure, easy for installation,
Stability Analysis of Structures, service life length, has good antiskid performance, radiating effect and good sealing effect, improves electrical safety, adopts
The mode installed with magnetic, it is convenient and swift, the time is saved, luminosity sensor collection luminosity information, light switch is flexibly controlled, saves
Electric energy is saved, reduces municipal cost.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of municipal administration underground lamp, including lamp top cover (1), lamp chamber (2) and lamp base (3), it is characterised in that：The lamp top cover
(1) annular groove (4) is offered on outer edge；The lamp chamber (2) is divided into illumination lamp chamber (5) and heat-dissipating cavity (6) two parts, and
It is separated by dividing plate (7)；The center bottom of the illumination lamp chamber (5) is threaded with light-guiding pillar (8)；The light-guiding pillar (8)
Top be electrically connected with LED illumination lamp (9)；Solar panel (10) is threaded with around the light-guiding pillar (8)；Institute
The outside for stating heat-dissipating cavity (6) is provided with heat dissipation channel (11)；The interior bottom portion of the heat-dissipating cavity (6) is threaded with radiating
Device (12)；Radiating fin (13) is offered on the heat dissipation channel (11)；The lower section both sides of the lamp base (3) are pasted with absorption
Magnet (14)；Luminosity sensor (15) is pasted with the lower surface of the lamp top cover (1).
2. municipal administration underground lamp according to claim 1, it is characterised in that：The lamp top cover (1) is transparent acrylic material
Material is made, and skid resistance strip (16) is provided with its surface.
3. municipal administration underground lamp according to claim 1, it is characterised in that：The output end of the solar panel (10)
It is electrically connected with savings battery component (17).
4. municipal administration underground lamp according to claim 3, it is characterised in that：The output end of the savings battery component (17)
It is electrically connected with aluminum-based circuit board (18).
5. municipal administration underground lamp according to claim 4, it is characterised in that：It is electrically connected with the aluminum-based circuit board (18)
In light-guiding pillar (8) and radiator (12).
6. according to the municipal administration underground lamp described in claim 3,4, it is characterised in that：The savings battery component (17) and aluminium base
It is internal that wiring board (18) is placed in heat-dissipating cavity (6).
7. municipal administration underground lamp according to claim 1, it is characterised in that：A circle waterproof is cased with the annular groove (4)
O-ring seal (19).
8. municipal administration underground lamp according to claim 1, it is characterised in that：It is pasted with the earth's surface and adsorption magnet
(14) the corresponding earth's surface in position fixes magnetic (20).
9. municipal administration underground lamp according to claim 1, it is characterised in that：The luminosity sensor (15) is electrically connected with
Microprocessor (21).
10. municipal administration underground lamp according to claim 9, it is characterised in that：The side of the microprocessor (21) is electrical
Controlling switch (22) is connected with, its controlling switch (22) is electrically connected at aluminum-based circuit board (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948952.XA CN107477509A (en) | 2017-10-12 | 2017-10-12 | A kind of municipal administration underground lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948952.XA CN107477509A (en) | 2017-10-12 | 2017-10-12 | A kind of municipal administration underground lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107477509A true CN107477509A (en) | 2017-12-15 |
Family
ID=60606398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948952.XA Withdrawn CN107477509A (en) | 2017-10-12 | 2017-10-12 | A kind of municipal administration underground lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107477509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320498A (en) * | 2018-04-02 | 2018-07-24 | 苏州金螳螂怡和科技有限公司 | A kind of novel pedestrian railway spike of tool acousto-optic prompting |
-
2017
- 2017-10-12 CN CN201710948952.XA patent/CN107477509A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320498A (en) * | 2018-04-02 | 2018-07-24 | 苏州金螳螂怡和科技有限公司 | A kind of novel pedestrian railway spike of tool acousto-optic prompting |
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Application publication date: 20171215 |