CN103868873B - A kind of ultraviolet specrophotometer with rubber key - Google Patents
A kind of ultraviolet specrophotometer with rubber key Download PDFInfo
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- CN103868873B CN103868873B CN201210546561.2A CN201210546561A CN103868873B CN 103868873 B CN103868873 B CN 103868873B CN 201210546561 A CN201210546561 A CN 201210546561A CN 103868873 B CN103868873 B CN 103868873B
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- panel
- rubber key
- circuit board
- hole
- ultraviolet specrophotometer
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- 210000003205 muscle Anatomy 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000011059 hazard and critical control points analysis Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
An embodiment of the present invention provides a kind of ultraviolet specrophotometers with rubber key, including ultraviolet specrophotometer ontology and cover assembly；The cover assembly specifically includes：Circuit board, with the matched panel of circuit board, the rubber key being arranged among the circuit board and the panel；The rubber key includes bottom, the button in the bottom surface is arranged, and the back side of panel is provided with muscle corresponding with button position, so that the button exposes through the muscle position；The back-side edge is provided with edge, for coating the circuit board.Not waterproof technical problem when solving rubber key in the prior art applied to ultraviolet specrophotometer.
Description
Technical field
The present invention is about electronic instrument, especially with regard to spectrophotometer, be concretely it is a kind of have rubber key
Ultraviolet specrophotometer.
Background technology
Spectrophotometer is a kind of instrument carrying out quantitative and qualitative analysis to substance using spectrophotometry.Spectrophotometry
Be then by measure measured matter light in certain wave strong point or a wavelength range trap, to the substance carry out it is qualitative and
Quantitative analysis.The instrument is that food factory, drinking water plant handle the indispensable of QS, HACCP certification and examine equipment.
In the prior art, the common wave-length coverage of spectrophotometer includes：The ultraviolet region of (1) 200~400nm；(2)
The visible region of 400~760nm；(3) 2.5~25 μm（It is calculated as 4000cm by wave number<-1>~400cm<-1>）Infrared light district.
Instrument is respectively ultraviolet specrophotometer, visible spectrophotometer（Or colorimeter）, infrared spectrophotometer or atom
Absorption spectrophotometer.
Ultraviolet specrophotometer has become modern molecular biology laboratory conventional instrument, is usually used in nucleic acid, and albumen is fixed
Amount and bacterial growth concentration quantify.Ultraviolet specrophotometer in the prior art includes mainly ultraviolet specrophotometer ontology
And cover assembly, cover assembly are generally comprised by light source chamber cap, sample cell lid and panel.Since spectrophotometer is mainly used
In the quantitative of liquid flux, observational measurement, after in operation usually placing reference and sample, ginseng is set on panel
Number is tested.Exist due to having liquid in test process, the button on spectrophotometer panel there should be waterproof
Function.
In the common button of instrument industry, there are two types of types, respectively pad pasting button and rubber key at present.Wherein, pad pasting
The advantages of button is that at low cost, easy for installation, water resistance is good, but have a disadvantage in that service life is low, by prolonged
Pressing, pad pasting are easily damaged, and are unsuitable on the panel of spectrophotometer；The advantages of rubber key is good hand touch, can
The color and transparency of each button of flexible design, but its shortcoming is that cost is higher and poor waterproof properties, it is applied to light splitting light
It is not waterproof when on degree meter.
Therefore, how to design that a kind of water resistance is excellent, service life length and can apply to button on spectrophotometer
Technical barrier to be solved is wiped as this field.
Invention content
An embodiment of the present invention provides a kind of ultraviolet specrophotometers with rubber key, by the bottom of rubber key
Layer back side setting edge, back side of panel setting muscle position and the setting protrusion at encoder hole, keep rubber key close with panel
Cooperation wraps circuit board, not waterproof skill when solving rubber key in the prior art applied to ultraviolet specrophotometer
Art problem.
It is an object of the present invention to provide a kind of ultraviolet specrophotometer with rubber key, the ultraviolet spectrometry light
Degree meter includes ultraviolet specrophotometer ontology and cover assembly；The cover assembly specifically includes：Circuit board, with it is described
The matched panel of circuit board, the rubber key being arranged among the circuit board and the panel；
Wherein, the rubber key includes bottom, the button in the bottom surface is arranged, and the back side of panel is set
It is equipped with muscle corresponding with button position, so that the button exposes through the muscle position；The back-side
Edge is provided with edge, for coating the circuit board.
Preferably, the cover assembly further includes knob, and encoder, the bottom are provided on the circuit board
Surface is provided with encoder hole, and the panel is provided with knob hole, the encoder penetrate respectively the encoder hole,
The knob hole exposes, and is matched with the knob
Preferably, the cover assembly further includes display screen.
Preferably, the back-side is provided with positioning column, is provided on the circuit board and matches with the positioning column
The location hole of conjunction, for fixing the rubber key.
Preferably, the bottom surface is provided with vertical columns hole.The back side of panel is provided with to be consolidated with described
The matched vertical columns of leghole are determined, for the fixed rubber key.
Preferably, the edge in the vertical columns hole is provided with the first protrusion.
Preferably, U-type groove is set on the vertical columns, sealing ring is placed in the U-type groove.
Preferably, the edge in the encoder hole is provided with the second protrusion, and the edge of the knob hole is provided with the
Three protrusions.
Preferably, the back side of panel is provided with support post, is used to support the rubber key.
Preferably, the rubber key is integrally formed with the panel.
Preferably, the encoder is fixed by welding on the circuit board.
The beneficial effects of the present invention are provide a kind of ultraviolet specrophotometer with rubber key, by rubber
Back-side setting edge, back side of panel setting muscle position and the setting protrusion at encoder hole of glue button, make rubber key
Circuit board is wrapped with panel tight fit, ultraviolet specrophotometer can not be applied to by solving rubber key in the prior art
The technical issues of, realize the water-proof function of ultraviolet specrophotometer, can reach IPX4 grades of waterproofs, and with pad pasting button phase
Than good hand touch, service life are long, and rubber key also has the advantages that easy for installation in addition.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention；
Fig. 2 is the knot of cover assembly in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 3 is the knot of rubber key in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 4 is the rubber key back side in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
Structural schematic diagram；
Fig. 5 is the structural schematic diagram of panel in a kind of ultraviolet specrophotometer with rubber key provided by the invention；
Fig. 6 is the amplified structural schematic diagram in center of panel in Fig. 5；
Fig. 7 is the diagrammatic cross-section of the A-A in Fig. 2；
Fig. 8 is the enlarged diagram of the section of the A-A in Fig. 2；
Fig. 9 is the diagrammatic cross-section of the C-C in Fig. 2；
Figure 10 is the diagrammatic cross-section of the D-D in Fig. 2；
Figure 11 is the diagrammatic cross-section of the E-E in Fig. 2；
Figure 12 is the diagrammatic cross-section of the F-F in Fig. 2.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is a kind of structural schematic diagram of the ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention,
As shown in Figure 1, the ultraviolet specrophotometer includes ultraviolet specrophotometer ontology and cover assembly.Specifically implementing
In mode, ultraviolet specrophotometer ontology specifically includes mutually matched pedestal assembly 1 and sample cell support 2, sample cell lid
3, light source chamber cap 4.
Cover assembly 5 provided in an embodiment of the present invention specifically includes：Circuit board and the matched face of circuit board
Plate, the rubber key being arranged among the circuit board and the panel.
Fig. 2 is the another of cover assembly in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
A kind of structural schematic diagram of embodiment, as shown in Figure 2, the cover assembly specifically includes in this embodiment：Knob
100, display screen 200, circuit board 300, with the matched panel 400 of circuit board, setting the circuit board with it is described
Rubber key 500 among panel can't see circuit board since circuit board 300 is arranged inside cover assembly from Fig. 2
300。
Wherein, display screen 200 can be realized in a particular embodiment by liquid crystal display, according to ultraviolet spectrometry light
The different model for spending meter, designs various sizes of display screen, such as 7 cun of liquid crystal displays.
Knob 100 can realize in various embodiments by different types of knob, such as only revolvable knob,
The knob etc. that can be rotated but also press.
Fig. 3 is the knot of rubber key in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
Structure schematic diagram, Fig. 5 are the structural schematic diagram of panel in a kind of ultraviolet specrophotometer with rubber key provided by the invention,
Fig. 6 is the amplified structural schematic diagram in center of panel in Fig. 5, by Fig. 3,5,6 it is found that the rubber key includes bottom
501, button 502 in the bottom surface is set, the back side of panel is provided with muscle corresponding with button position
401, so that the button exposes through the muscle position.In the other embodiment of the present invention, the rubber key
It can be integrally formed with the panel, rubber key and panel are made into a part namely encapsulated, can further improve purple
The water resistance of outer spectrophotometer, and install convenient.In the other embodiment of the present invention, button 502 and bottom 501
It can be integrally formed, water resistance can be improved but also realize easy for installation.
Fig. 4 is the rubber key back side in a kind of ultraviolet specrophotometer with rubber key provided in an embodiment of the present invention
Structural schematic diagram, as shown in Figure 4, the back-side edge is provided with edge 503, for coating the circuit board, leads to
The edge 503 being arranged herein is crossed, rubber key and circuit board are fixed together.Fig. 7 is the diagrammatic cross-section of the A-A along Fig. 2,
Fig. 8 is the section enlarged diagram along A-A in Fig. 7, whole with rubber key 500 by Fig. 7,8 visible circuit boards 300, panel 400
Body assembles effect.In actual application, the bottom of rubber key can be done to thick 0.2mm-0.5mm or by the muscle position on panel
It is thick 0.2mm-0.5mm than normal value, using the elasticity of rubber key, panel just has doing for 0.2mm-0.5mm with rubber key
Cooperation is related to, the interference gap of this 0.2mm-0.5mm makes rubber key be fitted close with panel.
Fig. 9 is that the diagrammatic cross-section of the cover assembly C-C in Fig. 2 is arranged on the circuit board 300 as shown in Figure 9
There are encoder 301,501 surface of bottom of the rubber key 500 to be provided with encoder hole 504, the panel 400 setting
There is knob hole 402, the encoder 301 exposes through the encoder hole 301, the knob hole 402 respectively, with institute
The knob 100 stated matches.In order to improve the water-proof function of ultraviolet specrophotometer, the size of knob 100 is much larger than encoder
Hole 301, knob hole 402 size, knob has the function of preventing outside liquid from flowing into panel.In addition, in order to further increase
The water-proof function of ultraviolet specrophotometer, in other embodiments, the edge in the encoder hole are provided with the second protrusion
5041, the edge of the knob hole is provided with third protrusion 4021, further outside liquid is prevented to flow into panel and circuit
Plate.Mentioned herein second protrusion and third protrusion, can be according to panel and bottom surface in specific practical application
Size is uniformly arranged in panel and bottom surface, be may also be arranged on panel and the edge of bottom surface, may be used also
It is randomly provided on panel and bottom surface, the present invention does not limit this.Second protrusion and third protrusion are specific
In practical application, it can be sized to the column with smooth side wall according to encoder, may be alternatively provided as being threaded side wall
Column, may be arranged as other structures, the present invention does not limit this.Likewise, in actual application, it can be by rubber
The bottom of glue button is thick 0.2mm-0.5mm or thick 0.2mm-0.5mm is in the muscle position on panel than normal value, is pressed using rubber
The elasticity of key, panel just have the interference engagement of 0.2mm-0.5mm with rubber key.Edge special protection is designed at encoder, is prevented
Only liquid flows into circuit board.In addition, the encoder can be fixed by welding on the circuit board.
In the other embodiment of the present invention, as shown in Figure 4, the back-side is provided with positioning column 505, described
Be provided on circuit board with the matched location hole 302 of the positioning column, for fixing the rubber key.Figure 12 is along Fig. 2
The diagrammatic cross-section of middle F-F, as seen from Figure 12 the location hole 302 of the positioning column 505 and circuit board 300 of rubber key 500 match
It closes.In a particular embodiment, multiple positioning columns can be arranged to match with multiple location holes of circuit board so that circuit board with
Rubber key completely coordinates, and relative position is avoided to misplace, and leads to button malfunction, and is avoided that there are gaps so that liquid flows into
Circuit board.Positioning column and positioning post holes mentioned herein, can be according to rubber key and circuit in specific practical application
The size of plate is uniformly arranged on rubber key and circuit board, may also be arranged on the side of rubber key and circuit board
At angle, it can also be randomly provided on rubber key and circuit board surface, the present invention does not limit this.
In the other embodiment of the present invention, from the figure 3, it may be seen that the bottom surface is provided with vertical columns hole 506,
The edge in the vertical columns hole is provided with the first protrusion 507.It will be appreciated from fig. 6 that 400 back side of panel is provided with and institute
The matched vertical columns 403 in vertical columns hole stated, for the fixed rubber key.Figure 10 is that D-D is cutd open along Fig. 2
Face schematic diagram, the as seen from Figure 10 cooperation of the vertical columns 403 in the vertical columns hole 506 and panel 400 of rubber key 500.
In specific embodiment, multiple vertical columns can be set and matched with multiple vertical columns holes of panel so that panel and rubber
Glue button completely coordinates, and relative position is avoided to misplace, and leads to button malfunction, and is avoided that there are gaps so that liquid flows into electricity
Road plate.It, can be in the fixation in order to improve the waterproofing grade of ultraviolet specrophotometer in the other embodiment of the present invention
U-type groove is set on column 403, sealing ring is placed in the U-type groove.Vertical columns hole and fixation mentioned herein is vertical
Column, in specific practical application can according to bottom surface and the size of panel, be uniformly arranged on bottom surface and
On panel, the edge of bottom surface and panel is may also be arranged on, can be also randomly provided in bottom surface and panel surface
On, the present invention does not limit this.First protrusion can be sized to have in specific practical application according to vertical columns
The column for having smooth side wall may be alternatively provided as the column for being threaded side wall, may be arranged as other structures, the present invention is to this
It does not limit.
In the other embodiment of the present invention, it will be appreciated from fig. 6 that 400 back side of panel is provided with support post
404, it is used to support the rubber key.Figure 11 is the diagrammatic cross-section of the E-E along Fig. 2, as shown in Figure 11, it is seen that rubber key
500 with the cooperation of the support post 404 of panel 400.In a particular embodiment, multiple support posts can be set, by rubber
Button is withstood, tight with circuit board plane cooperation, further plays waterproof action.Support post mentioned herein, specific
Practical application in can be uniformly arranged on panel according to the size of panel, may also be arranged on the edge of panel, may be used also
It is randomly provided on panel, the present invention does not limit this.
In conclusion the useful achievement of the present invention is：A kind of ultraviolet specrophotometer with rubber key is provided, is led to
It crosses the back-side setting edge in rubber key, back side of panel setting muscle position and protrusion is set at encoder hole, make rubber
Glue button wraps circuit board with panel tight fit, and ultraviolet spectrometry can not be applied to by solving rubber key in the prior art
Photometric technical problem realizes the water-proof function of ultraviolet specrophotometer, can reach IPX4 grades of waterproofs, and press with pad pasting
Key is compared, and good hand touch, service life are long, and rubber key also has the advantages that easy for installation in addition.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above example
Explanation be merely used to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
1. a kind of ultraviolet specrophotometer with rubber key, characterized in that the ultraviolet specrophotometer includes ultraviolet
Spectrophotometer ontology and cover assembly；
The cover assembly specifically includes：Circuit board and the matched panel of circuit board are arranged in the circuit board
With the rubber key among the panel；
Wherein, the rubber key includes bottom, the button in the bottom surface is arranged, and the back side of panel is provided with
Muscle position corresponding with the button, so that the button exposes through the muscle position；
The back-side edge is provided with edge, for coating the circuit board；
Thick 0.2mm-0.5mm is in the muscle position that the bottom of the rubber key is done on thick 0.2mm-0.5mm or described panels, so profit
With the elasticity of rubber key, the panel just has the interference engagement of 0.2mm-0.5mm with the rubber key；
The bottom surface is provided with vertical columns hole, and the back side of panel is provided with and vertical columns hole matching
The vertical columns of conjunction, for the rubber key, the vertical columns hole and vertical columns according to bottom surface with
And the size of panel, it is uniformly arranged on bottom surface and panel or is arranged the corner in bottom surface and panel
Place；The edge in the vertical columns hole is provided with the first protrusion, and first protrusion is column or band with smooth side wall
There is the column of threaded side wall；U-type groove is set on the vertical columns, sealing ring is placed in the U-type groove.
2. ultraviolet specrophotometer according to claim 1, characterized in that the cover assembly further includes knob, institute
Encoder is provided on the circuit board stated, the bottom surface is provided with encoder hole, and the panel is provided with knob hole,
The encoder exposes through the encoder hole, the knob hole respectively, is matched with the knob.
3. ultraviolet specrophotometer according to claim 1 or 2, characterized in that the cover assembly further includes display
Screen.
4. ultraviolet specrophotometer according to claim 1, characterized in that the back-side is provided with positioning column,
Be provided on the circuit board with the matched location hole of the positioning column, for fixing the rubber key.
5. ultraviolet specrophotometer according to claim 2, characterized in that the edge in the encoder hole is provided with
Two protrusions, the edge of the knob hole is provided with third protrusion.
6. ultraviolet specrophotometer according to claim 1, characterized in that it is vertical that the back side of panel is provided with support
Column is used to support the rubber key.
7. ultraviolet specrophotometer according to claim 1, characterized in that the rubber key and the panel one
Molding.
8. ultraviolet specrophotometer according to claim 2, characterized in that the encoder is fixed by welding in institute
It states on circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546561.2A CN103868873B (en) | 2012-12-14 | 2012-12-14 | A kind of ultraviolet specrophotometer with rubber key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546561.2A CN103868873B (en) | 2012-12-14 | 2012-12-14 | A kind of ultraviolet specrophotometer with rubber key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103868873A CN103868873A (en) | 2014-06-18 |
| CN103868873B true CN103868873B (en) | 2018-07-13 |
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ID=50907640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546561.2A Active CN103868873B (en) | 2012-12-14 | 2012-12-14 | A kind of ultraviolet specrophotometer with rubber key |
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| Country | Link |
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| CN (1) | CN103868873B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113260183B (en) * | 2020-02-12 | 2023-03-24 | 杭州海康微影传感科技有限公司 | Electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297231Y (en) * | 1997-05-28 | 1998-11-18 | 周金隆 | Keyboard jumping device for piano toy |
| CN2377604Y (en) * | 1999-05-06 | 2000-05-10 | 徐显基 | Outdoor use type keyboard structure |
| CN101026043A (en) * | 2006-02-21 | 2007-08-29 | 晟翰实业有限公司 | Waterproof button and its prepairng method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613223A (en) * | 1994-01-28 | 1997-03-18 | Amsc Subsidiary Corporation | Mobile communicator bracing system |
| TW358571U (en) * | 1997-10-24 | 1999-05-11 | Acer Peripherals Inc | Water proofing keyboard |
-
2012
- 2012-12-14 CN CN201210546561.2A patent/CN103868873B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297231Y (en) * | 1997-05-28 | 1998-11-18 | 周金隆 | Keyboard jumping device for piano toy |
| CN2377604Y (en) * | 1999-05-06 | 2000-05-10 | 徐显基 | Outdoor use type keyboard structure |
| CN101026043A (en) * | 2006-02-21 | 2007-08-29 | 晟翰实业有限公司 | Waterproof button and its prepairng method |
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| Publication number | Publication date |
|---|---|
| CN103868873A (en) | 2014-06-18 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200121 Address after: 215000 Room 408, building 1, No. 8, Jinfeng Road, hi tech city, Suzhou City, Jiangsu Province Patentee after: Suzhou Litong Precision Measurement System Co., Ltd Address before: Kolding road high tech Zone of Suzhou City, Jiangsu Province, No. 8 215163 Patentee before: SUZHOU RIGOL PRECISION ELECTRIC TECHNOLOGIES CO., LTD. |