CN209471703U - A kind of self-radiation mark device - Google Patents
A kind of self-radiation mark device Download PDFInfo
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- CN209471703U CN209471703U CN201920419803.9U CN201920419803U CN209471703U CN 209471703 U CN209471703 U CN 209471703U CN 201920419803 U CN201920419803 U CN 201920419803U CN 209471703 U CN209471703 U CN 209471703U
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Abstract
The utility model relates to a kind of self-radiation mark devices, including solar panels, battery, the Sign Board for being fixed with LED light, controller, time-delay relay and bracket, the solar panels are fixedly connected by the bracket with external component, and the battery is fixedly connected with the bracket;The solar panels are electrically connected with the controller, and the battery is electrically connected with the controller, and the time-delay relay is electrically connected with the controller, and the LED light is electrically connected with the time-delay relay.The beneficial effects of the utility model are: the needs of electricity required for luminous mark obtain from the solar panels on solar bracket, electricity is stored in battery after solar panels power generation, battery uses electricity supply luminous mark.Realize it is self-sufficient on high steel tower, meanwhile, also meet night use mark purpose.
Description
Technical field
The utility model relates to Sign Board fields, and in particular to a kind of self-radiation mark device.
Background technique
Sign Board is not easy luminous mark occur by it is clear that therefore in order to facilitate in night use at night.The prior art
In luminous mark need to connect setting power supply on the ground, but in signal tower, high-voltage power transmission tower or other are higher
Luminous mark is arranged on building to need to connect very long electric wire, is not easy to construct and use.
Utility model content
Technical problem to be solved in the utility model is how to shorten the transmission distance of eminence luminous mark.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of self-radiation mark device, including the sun
Energy plate, battery, the Sign Board for being fixed with LED light, controller, time-delay relay and bracket, the solar panels pass through described
Bracket is fixedly connected with external component, and the battery is fixedly connected with the bracket;The solar panels and the controller
Electrical connection, the battery are electrically connected with the controller, and the time-delay relay is electrically connected with the controller, the LED
Lamp is electrically connected with the time-delay relay.
The beneficial effects of the utility model are: electricity required for luminous mark is needed from the solar energy on solar bracket
It obtains, electricity is stored in battery after the power generation of solar panels on daytime, electricity is supplied luminous mark by night battery at plate
It uses.Realize it is self-sufficient on high steel tower, meanwhile, also meet night use mark purpose.Time-delay relay can make
LED light keeps flashing in N seconds primary, identifies more eye-catching.
Based on the above technical solution, the utility model can also do following improvement.
It further, further include control cabinet, the battery, the controller and the time-delay relay are all set in described
In control cabinet.
Beneficial effect using above-mentioned further scheme is: control cabinet protects battery, controller and time-delay relay not
It is caught in the rain.
Further, the bracket includes lower bracket and connecting bracket, the both ends of the connecting bracket respectively with the lower branch
Frame is fixedly connected with the solar panels, and for the connecting bracket perpendicular to the solar panels, the lower bracket is horizontally disposed simultaneously
It is fixedly connected with the external component, the connecting bracket is obliquely installed, and the control cabinet is fixedly installed on the lower bracket.
Beneficial effect using above-mentioned further scheme is: solar panels first pass through tilt stand when construction and lower bracket connects
It connects, then lower bracket is fixedly connected with external component, it is easy to operate to be easily installed.Connecting bracket, which is obliquely installed, fills solar panels
Tap touching sunlight improves energy absorption efficiency.Lower bracket is horizontally disposed, and the connection of self-radiation mark device and external component is steady
Gu.
Further, the connecting bracket is two, and both ends of two connecting brackets respectively with the lower bracket are fixed
Connection, the control cabinet are fixedly installed between two connecting brackets.
Beneficial effect using above-mentioned further scheme is: the set-up mode of control cabinet saves installation space, clean and tidy generous.
Further, the tilt angle of the connecting bracket is 40-50 °.
Beneficial effect using above-mentioned further scheme is: solar panels being made to come into full contact with sunlight.
Preferably, the tilt angle of the connecting bracket is 45 °.
Further, the bracket further includes fixed bracket, and the fixed bracket is fixedly connected with the solar panels, described
The end of connecting bracket is fixedly connected with the support bracket fastened middle part.
Beneficial effect using above-mentioned further scheme is: on the one hand fixed bracket is fixedly connected with solar panels to be improved
The support strength of solar panels, on the other hand the connection for connecting bracket and solar panels provides convenience, facilitates construction, Ke Yigen
According to needing that link position is adjusted flexibly.
Further, the lower bracket is L shape, and the lower bracket includes horizontally disposed bottom plate and the vertical plate that is vertically arranged,
The bottom plate is fixedly connected with the external component.
Using the beneficial effect of above-mentioned further scheme is: lower bracket is high for L shape intensity, and counter-bending and torsional strength is high,
High aerial strong wind can be resisted.
Further, one end of the connecting bracket has support portion and interconnecting piece, and the support portion is horizontally disposed, the company
Socket part is fixedly connected with the vertical plate of the lower bracket, and the bottom plate of the support portion and the lower bracket abuts against.
Beneficial effect using above-mentioned further scheme is: the support portion plays positioning action, guarantees connecting bracket
Tilt angle, interconnecting piece are fixedly connected with lower bracket.
Further, the Sign Board includes four profiles and marking plate, and four profiles are in turn connected to form rectangle frame
It is connected on the inside of body, the marking plate and the rectangular box, the side of the profile has inserting groove, and the marking plate is embedding
It is located in the inserting groove, the LED light is fixedly connected with the marking plate.
Beneficial effect using above-mentioned further scheme is: marking plate is connect with the rectangular box that four profiles form, type
Material is light, cost performance is high, structural strength is high, and profile and marking plate are formed by the intensity height of Sign Board, anti-torsional strength height.Mark
Know plate to be plugged in inserting groove, stable connection, blowing-resistant is not easily to fall off.
Further, the side tool of the profile is there are two the inserting groove, and the marking plate is two, two grafting
Slot is arranged in parallel, and the marking plate is arranged in a one-to-one correspondence with the inserting groove.
Beneficial effect using above-mentioned further scheme is: two marking plates are arranged in parallel, can block on marking plate
The electric wire of LED light connection, appearance looks elegant.
Detailed description of the invention
Fig. 1 is a kind of three-dimensional figure of self-radiation mark device of the utility model;
Fig. 2 is a kind of circuit structure diagram of self-radiation mark device of the utility model;
Fig. 3 is a kind of Sign Board cross-sectional view of self-radiation mark device of the utility model;
Fig. 4 is a kind of connecting bracket three-dimensional figure of self-radiation mark device of the utility model;
Fig. 5 is a kind of signboard structure schematic diagram of self-radiation mark device of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, solar panels, 2, battery, 3, LED light, 4, Sign Board, 401, profile, 4011, inserting groove, 402, marking plate,
5, control cabinet, 6, controller, 7, time-delay relay, 8, bracket, 801, lower bracket, 802, connecting bracket, 8021, support portion,
8022, interconnecting piece, 803, fixed bracket, 9, external component.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As Figure 1-Figure 5, a kind of self-radiation mark device including solar panels 1, battery 2, is fixed with LED light 3
Sign Board 4, controller 6, time-delay relay 7 and bracket 8, the solar panels 1 are fixed by the bracket 8 and external component 9
Connection, the battery 2 are fixedly connected with the bracket 8;The solar panels 1 are electrically connected with the controller 6, the electric power storage
Pond 2 is electrically connected with the controller 6, and the time-delay relay 7 is electrically connected with the controller 6, and the LED light 3 is prolonged with described
When relay 7 be electrically connected.
Specifically, the solar panels are bolted to connection with the bracket 8, the bracket 8 and the external structure
Part 9 is bolted to connection.
Specifically, be illustrated in figure 5 a kind of structure of optional Sign Board 4, the pattern on Sign Board 4 can be according to using
Carry out flexible choice.
It further include control cabinet 5 as the further scheme of the present embodiment, the battery 2, the controller 6 and described
Time-delay relay 7 is all set in the control cabinet 5.
Specifically, the control cabinet 5 is rectangular box body, the threading hole that there is the side wall of control cabinet 5 supply lines to pass through.Institute
Stating electrical connection is to be connected by electric wire.
Specifically, the battery 2, the controller 6 and the time-delay relay 7 are set in the control cabinet 5 simultaneously
It is fixedly connected with the bottom wall of the control cabinet 5 by screw, mode can also be fixedly connected with using other, such as be connected by band
Or bonding.The positional relationship of the battery 2, the controller 6 and the time-delay relay 7 in the control cabinet 5, ability
Field technique personnel are adjusted according to the usage requirement.With the controller 6 or the electricity that is connected of time-delay relay 7 in control cabinet 5
Line passes through the threading hole on control cabinet 5 and is electrically connected with external equipment.
As the further scheme of the present embodiment, the bracket 8 includes lower bracket 801 and connecting bracket 802, the connection
The both ends of bracket 802 are fixedly connected with the lower bracket 801 and the solar panels 1 respectively, the connecting bracket 802 perpendicular to
The solar panels 1, the lower bracket 801 is horizontally disposed and is fixedly connected with the external component 9, the connecting bracket 802
It is obliquely installed, the control cabinet 5 is fixedly installed on the lower bracket 801.
As the further scheme of the present embodiment, the tilt angle of the connecting bracket 802 is 40-50 °.
As the further scheme of the present embodiment, the bracket 8 further includes fixed bracket 803, the fixed bracket 803 with
The solar panels 1 are bolted to connection, and the middle part of the end of the connecting bracket 802 and the fixed bracket 803 is logical
Bolt is crossed to be fixedly connected.
As the further scheme of the present embodiment, the lower bracket 801 is L shape, and the lower bracket 801 includes horizontally disposed
Bottom plate and the vertical plate that is vertically arranged, the bottom plate be bolted to connection with the external component 9.The lower bracket 801
It is angle steel with the fixed bracket 803.
As the further scheme of the present embodiment, the connecting bracket 802 is angle cleat, the connecting bracket 802
One end has support portion 8021 and interconnecting piece 8022, and the support portion 8021 is horizontally disposed, the interconnecting piece 8022 with it is described under
The vertical plate of bracket 801 is bolted to connection, and the bottom plate of the support portion 8021 and the lower bracket 801 abuts against.
Specifically, interconnecting piece 8022 is rectangle as shown in figure 4, one end of the connecting bracket 802 has interconnecting piece 8022
Sheet, the interconnecting piece are vertical with the support portion 8021.The support portion 8021 is supporting surface, the supporting surface and the company
The length direction for connecing angle steel has angle, and the supporting surface is horizontally disposed.The support portion 8021 and 801 inside of lower bracket
Upper surface abut against, the vertical plane of the interconnecting piece 8022 and the lower bracket 801 is bolted to connection.
Specifically, the fixed bracket 803 is two, the connection as shown in Fig. 2, the connecting bracket 802 is two
Bracket 802 and the fixed bracket 803 are arranged in a one-to-one correspondence and are bolted to connection, two connecting brackets 802
The both ends that lower end passes through the interconnecting piece 8022 and the lower bracket 801 respectively are bolted to connection.
As the further scheme of the present embodiment, the Sign Board 4 includes four profiles 401 and marking plate 402, four institutes
It states profile 401 and is in turn connected to form rectangular box, be connected on the inside of the marking plate 402 and the rectangular box, the type
The side of material 401 has inserting groove 4011, and the marking plate 402 is embedded in the inserting groove 4011.The inserting groove 4011
It is set on the inside of the rectangular box.
Specifically, the two neighboring profile 401 is fixedly connected by screw, two profiles 401 are vertically arranged, screw from
The side wall of one of profile 401 is penetrated and is connect with the end thread of another profile 401.
Specifically, being illustrated in figure 3 the cross-section structure of one of optional profile 401, other can also be selected to have
The profile structure of inserting groove 4011.
As the further scheme of the present embodiment, there are two the inserting grooves 4011 for the side tool of the profile 401, described
Marking plate 402 is two, and two inserting grooves 4011 are arranged in parallel, and the marking plate 402 and the inserting groove 4011 are one by one
It is correspondingly arranged.
Specifically, the external component 9 can be high-voltage power transmission tower or signal tower or other buildings.The Sign Board
4 are fixedly connected with external component 9.The control cabinet 5 can be set empty to save installation between two connecting brackets 802
Between, it also can be set in other positions.The control cabinet 5 is bolted to connection with the lower bracket 501.
The course of work: when daytime, solar panels 1, which convert solar energy into electrical energy, to be stored in battery 2.When night, store
Electric energy supply controller 6, time-delay relay 7 and the LED light 3 of battery 2, controller 6 and time-delay relay 7 control LED light 3 and dodge
It is bright.It should be noted that foregoing circuit connection type, the control mode of controller can using the prior art realize, it is described too
Positive energy plate uses the prior art, and electric connection mode and solar energy method for transformation are the prior art, for simplicity of exposition, herein
It repeats no more.
One, application environment
The self-radiation mark device of the utility model is suitable for high-voltage power transmission tower or signal tower or other buildings.
Two, product form
Luminous mark by LED light 3, solar panels 1, battery 2, controller 6, time-delay relay 7, PVC material mark
The components compositions such as rectangular box, the fixing piece that plate 402, thermal transfer mark, profile 401 form.
2.1 LED light
2.1.1 flexible luminous lamp bead is selected.
Simple grain yellow lamp bead luminous intensity is not less than 3000mcd, and simple grain red lamp bead luminous intensity is not less than 5000mcd,
Simple grain white lamp bead luminous intensity is not less than 6000mcd.
2.1.2 distance of visual cognition.
Static distance of visual cognition should be not less than 250m;
Dynamic distance of visual cognition should be not less than 210m.
2.1.3 the degree of protection of LED light should be not less than IP65 grades.
2.1.4 the power of simple grain LED light is 0.1W.
2.1.5 the operating voltage of LED light is 12V.
2.2 solar panels
2.2.1 solar panels select monocrystalline silicon photovoltaic solar component.
2.2.2 solar panels power selects 50W or 200W.
2.2.3 operating voltage is 18V.
2.2.4 50W solar panels size: 670mm*540mm*25mm.
2.2.5 200W solar panels size: 1340mm*990mm*35mm.
2.3 battery
2.3.1 operating temperature is -40 DEG C -70 DEG C.
2.3.2 accumulator capacity is and 24AH or 100AH.
2.3.3 24AH battery size: 160mm*120mm*172mm.
2.3.4 100AH battery size: 325mm*170mm*215mm.
2.4 controller
2.4.1 it is that LED light source exports electric current that controller, which can control battery after darkness, stops output after daybreak.
2.4.2 controller size: 130mm*75mm*35mm.Selecting controller to select brand in the present embodiment is photosynthetic silicon
Can, the controller of model GHGN-HF12V24V.
2.5 time-delay relay
2.5.1 time-delay relay can control LED light source to keep flashing in N seconds primary.
2.5.2 time-delay relay size: 117mm*50mm*50mm.Time-delay relay in the present embodiment selects the brand to be
Sharp Xiang, the digital display time relay of model DH48S-S.
2.6 marking plate
2.6.1 marking plate selects the PVC marking plate of one company of ancient cooking vessel production.
2.6.2 PVC identifies board size: 900mm*900mm*3mm.
2.7 thermal transfers mark
2.7.1 thermal transfer mark is identified using the thermal transfer that one company of ancient cooking vessel prints.Pass through thermal transfer side i.e. on marking plate
Formula prints warning picture or text.
2.7.2 size is identified: 900mm*900mm.
2.8 rectangular box
2.8.1 rectangular box selects the polymeric stent of one company of ancient cooking vessel production, and polymeric stent is by four macromolecule materials
The rectangular frame of the composition of profile made of expecting.
2.8.2 polymeric stent length: 925mm.
Three, production technology
3.1: mark content production mode:
3.1.1 the PCV marking plate of two pieces of 900mm*900mm, one of stickup thermal transfer mark are used.
Warning content is pressed 35mm interval distance using erasable white board marker by the PVC marking plate that 3.1.2 will have alarming sign
The fixed position such as LED is successively pointed out along contour direction from the middle of color cell.As shown in Figure 5.
3.1.3 electric hand drill and 9mm size drill bit are used, is punched according to white board marker position.
3.1.4 LED light is successively sequentially inserted into according to punch position, by the fixed LED lamp bead of glass cement, note finally that lead
Position, by identify above pick out, mark black portions be inserted into yellow led lamp bead, mark RED sector be inserted into red LED lamp
Pearl.The lamp bead distribution of color provided in the present embodiment is only preferred embodiment, and the color setting of lamp bead can carry out flexible choice.
3.1.5 the PVC marking plate for being plugged lamp bead is installed in the rectangular box for being 925mm*925mm to outer dimension, four
Week is fixed by glass cement.
3.1.6 another piece of PVC marking plate is put into the rectangular box other side, pays attention to LED lamp bead wire locations, pass through the block
PVC marking plate extracts.
3.1.7 another fast PVC marking plate is fixed using glass cement and rectangular box.
3.2: controller, time-delay relay, solar panels, battery and mark connection type
3.2.1 solar panels are connected to below controller on 1.2 mouthfuls using 2.5 ordinary telegram lines, pay attention to positive and negative anodes.
3.2.2 battery is connected to below controller on 3.4 mouthfuls using 2.5 ordinary telegram lines, pays attention to positive and negative anodes.
3.2.3 5.6 mouthfuls below controller are picked out using 2.5 ordinary telegram lines, the power supply as connection identifier board LED light.
3.2.4 by the power supply of Sign Board LED light, red electric wire (anode) is connected to No. 5 mouths of time-delay relay, black electricity
Line (cathode) is connected to No. 2 mouths of time-delay relay.
3.2.6 7, No. 8 mouths of time-delay relay are connected, No. 7 mouths of time-delay relay is connected into red electric wire, No. 2 mouth connections
Black electric wire.
3.2.7 controller is adjusted to auto-power on mode, conduction time is 13 hours.
3.2.8 number on time-delay relay screen is changed, select lighting time according to the actual situation and turned off the light the time.Prolong
When relay screen on first three number word represent lighting time, rear three numbers, which represent, turns off the light the time.
Four, technical requirements
The active luminescence unit of 4.1 composition identification patterns, text, profile etc. may be configured as flashing according to use demand and show
Show.
Electricity in 4.2 batteries can be not less than 30 hours for mark in stream time rainy days, and rainy days can
The opening controller by way of being manually powered;
4.3 connection electric wires select 2.5 flat common wirings;
4.4LED lamp selects parallel connection, and single lamp bead damage does not influence to identify whole normal luminous.
Five, presentation quality
5.1 luminous mark product members should complete, assembly securely, stable structure, corner transition is round and smooth, and non-trimming is hairless
Thorn;
The defects of protective layer color of 5.2 shells, connector etc. should be uniform, without scratching, being flawless, exposed without matrix;
The solar module surface of 5.3 solar power supply types mark should encapsulate tightly, no marking, bubble, without exposed
Connector and electric wire.
In the description of the present invention, it should be noted that product type and size cited in embodiment is this
Optinal plan in embodiment, those skilled in the art can select the portion of other models or size according to actual use situation
Part.
In the description of the present invention, it should be noted that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of self-radiation mark device, which is characterized in that including solar panels (1), battery (2), be fixed with LED light (3)
Sign Board (4), controller (6), time-delay relay (7) and bracket (8), the solar panels (1) by the bracket (8) with
External component (9) is fixedly connected, and the battery (2) is fixedly connected with the bracket (8);The solar panels (1) with it is described
Controller (6) electrical connection, the battery (2) are electrically connected with the controller (6), the time-delay relay (7) and the control
Device (6) electrical connection processed, the LED light (3) are electrically connected with the time-delay relay (7).
2. a kind of self-radiation mark device according to claim 1, which is characterized in that further include control cabinet (5), the electric power storage
Pond (2), the controller (6) and the time-delay relay (7) are all set in the control cabinet (5).
3. a kind of self-radiation mark device according to claim 2, which is characterized in that the bracket (8) includes lower bracket
(801) and connecting bracket (802), the both ends of the connecting bracket (802) respectively with the lower bracket (801) and the solar energy
Plate (1) is fixedly connected, and for the connecting bracket (802) perpendicular to the solar panels (1), the lower bracket (801) is horizontally disposed
And be fixedly connected with the external component (9), the connecting bracket (802) is obliquely installed, and the control cabinet (5) is fixedly installed on
On the lower bracket (801).
4. a kind of self-radiation mark device according to claim 3, which is characterized in that the connecting bracket (802) is two,
Two connecting brackets (802) are fixedly connected with the both ends of the lower bracket (801) respectively, and control cabinet (5) fixation is set
It is placed between two connecting brackets (802).
5. a kind of self-radiation mark device according to claim 3, which is characterized in that the inclination of the connecting bracket (802)
Angle is 40-50 °.
6. a kind of self-radiation mark device according to claim 3, which is characterized in that the bracket (8) further includes fixed branch
Frame (803), the fixed bracket (803) are fixedly connected with the solar panels (1), the end of the connecting bracket (802) with
It is fixedly connected in the middle part of the fixed bracket (803).
7. a kind of self-radiation mark device according to claim 3, which is characterized in that the lower bracket (801) is L shape, institute
The vertical plate that lower bracket (801) includes horizontally disposed bottom plate He is vertically arranged is stated, the bottom plate and the external component (9) are fixed
Connection.
8. a kind of self-radiation mark device according to claim 7, which is characterized in that one end of the connecting bracket (802)
With support portion (8021) and interconnecting piece (8022), the support portion (8021) is horizontally disposed, the interconnecting piece (8022) and institute
The vertical plate for stating lower bracket (801) is fixedly connected, and the support portion (8021) and the bottom plate of the lower bracket (801) offset
It connects.
9. any one of -8 a kind of self-radiation mark device according to claim 1, which is characterized in that Sign Board (4) packet
Four profiles (401) and marking plate (402) are included, four profiles (401) are in turn connected to form rectangular box, the marking plate
(402) it is connected on the inside of the rectangular box, the side of the profile (401) has inserting groove (4011), the mark
Plate (402) is embedded in the inserting groove (4011), and the LED light (3) is fixedly connected with the marking plate (402).
10. a kind of self-radiation mark device according to claim 9, which is characterized in that the side of the profile (401) has
Two inserting grooves (4011), the marking plate (402) are two, and two inserting grooves (4011) are arranged in parallel, described
Marking plate (402) is arranged in a one-to-one correspondence with the inserting groove (4011).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920419803.9U CN209471703U (en) | 2019-03-29 | 2019-03-29 | A kind of self-radiation mark device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920419803.9U CN209471703U (en) | 2019-03-29 | 2019-03-29 | A kind of self-radiation mark device |
Publications (1)
Publication Number | Publication Date |
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CN209471703U true CN209471703U (en) | 2019-10-08 |
Family
ID=68093320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201920419803.9U Active CN209471703U (en) | 2019-03-29 | 2019-03-29 | A kind of self-radiation mark device |
Country Status (1)
Country | Link |
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CN (1) | CN209471703U (en) |
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2019
- 2019-03-29 CN CN201920419803.9U patent/CN209471703U/en active Active
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