CN204480243U - Economics special calculator - Google Patents
Economics special calculator Download PDFInfo
- Publication number
- CN204480243U CN204480243U CN201520063408.3U CN201520063408U CN204480243U CN 204480243 U CN204480243 U CN 204480243U CN 201520063408 U CN201520063408 U CN 201520063408U CN 204480243 U CN204480243 U CN 204480243U
- Authority
- CN
- China
- Prior art keywords
- card
- plug
- usb
- audio frequency
- economics
- 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.)
- Expired - Fee Related
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to a kind of economics special calculator.Economics is a present independent educational project, is the science about law of economic development.In economic teaching process, inevitably need to calculate.A kind of economics special calculator, its composition comprises: housing (3), described housing front faces have display screen (10) and crystal key (11), described shroud rear face middle has U-shaped fastener (2) and lithium battery kit (1), described U-shaped fastener and supporting leg (9) hinged, the little audio amplifier of the portable plug-in card of tool (4) on the right side of described housing, described housing right flank has the SD card plug (5) be electrically connected with central circuit plate, USB (6), audio frequency outlet (70, SD card plug, USB, audio frequency outlet and the SD card plug on the little audio amplifier of portable plug-in card, USB, audio frequency outlet is corresponding.The utility model is applied to economics special calculator.
Description
technical field:
the utility model relates to a kind of economics special calculator.
background technology:
economics is a present independent educational project, is the science about law of economic development.In economic teaching process, inevitable needs calculate, in Teaching of Economics, just need counter to carry out aided education like this, traditional calculations device in use lies in desktop and operates, operation of bowing for a long time causes operator tired, simultaneously the button on counter surface easily occurs that the handwriting is blurred does not see Chu's situation, in teaching uses, bring a lot of inconvenience.
summary of the invention:
the purpose of this utility model is to provide a kind of economics special calculator.
above-mentioned object is realized by following technical scheme:
a kind of economics special calculator, its composition comprises: housing, described housing front faces have display screen and crystal key, described shroud rear face middle has U-shaped fastener and lithium battery kit, described U-shaped fastener and supporting leg hinged, the little audio amplifier of the portable plug-in card of tool on the right side of described housing, described housing right flank has the SD card plug, USB, the audio frequency that are electrically connected with central circuit plate to export, the outlet of described SD card plug, USB, audio frequency exports corresponding with the SD card plug on the little audio amplifier of portable plug-in card, USB, audio frequency.
described economics special calculator, described U-shaped fastener has draw-in groove, and described supporting leg can be embedded in draw-in groove.
the beneficial effects of the utility model:
1. the utility model devises economics special calculator, first on the button on counter surface, crystal key is adopted, the former keys of computer of protection that crystal key plastic transparent material (GP material) does, former keys of computer generation writing wear phenomenon can not be made, devise Portable small sound box at counter right-hand member simultaneously, can carry out loosening use after fatigue study, in counter back surface design U-shaped fastener and supporting leg hinged, the operation of counter angle of inclination can be realized, operation of avoiding bowing for a long time brings the situations such as vertebra fatigue, counter adopts lithium battery to power simultaneously, lithium battery is chargeable, can Reusability.
the utility model structure is simple, easy to operate, and fatigue-relieving intensity greatly in use operating process, can be undertaken loosening amusement by little audio amplifier, button long perfomance life simultaneously.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is the utility model housing upper surface schematic diagram.
embodiment:
embodiment 1:
a kind of economics special calculator, its composition comprises: housing 3, described housing front faces have display screen 10 and crystal key 11, described shroud rear face middle has U-shaped fastener 2 and lithium battery kit 1, described U-shaped fastener and supporting leg 9 hinged, the little audio amplifier 4 of the portable plug-in card of tool on the right side of described housing, described SD card plug 5, USB 6, audio frequency outlet 7, SD card plug, USB, audio frequency export, and export corresponding with the SD card plug on the little audio amplifier of portable plug-in card, USB, audio frequency.
embodiment 2:
economics special calculator according to embodiment 1, described U-shaped fastener has draw-in groove 8, and described supporting leg can be embedded in draw-in groove.
Claims (2)
1. an economics special calculator, its composition comprises: housing, it is characterized in that: described housing front faces has display screen and crystal key, described shroud rear face middle has U-shaped fastener and lithium battery kit, described U-shaped fastener and supporting leg hinged, the little audio amplifier of the portable plug-in card of tool on the right side of described housing, described housing right flank has the SD card plug be electrically connected with central circuit plate, USB, audio frequency exports, described SD card plug, USB, audio frequency outlet and the SD card plug on the little audio amplifier of portable plug-in card, USB, audio frequency outlet is corresponding.
2. economics special calculator according to claim 1, is characterized in that: described U-shaped fastener has draw-in groove, and described supporting leg can be embedded in draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063408.3U CN204480243U (en) | 2015-01-29 | 2015-01-29 | Economics special calculator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063408.3U CN204480243U (en) | 2015-01-29 | 2015-01-29 | Economics special calculator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204480243U true CN204480243U (en) | 2015-07-15 |
Family
ID=53636021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520063408.3U Expired - Fee Related CN204480243U (en) | 2015-01-29 | 2015-01-29 | Economics special calculator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204480243U (en) |
-
2015
- 2015-01-29 CN CN201520063408.3U patent/CN204480243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170129 |