CN201107602Y - 8D latch answering racer - Google Patents
8D latch answering racer Download PDFInfo
- Publication number
- CN201107602Y CN201107602Y CNU2007200816138U CN200720081613U CN201107602Y CN 201107602 Y CN201107602 Y CN 201107602Y CN U2007200816138 U CNU2007200816138 U CN U2007200816138U CN 200720081613 U CN200720081613 U CN 200720081613U CN 201107602 Y CN201107602 Y CN 201107602Y
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- latch
- question
- answer
- game apparatus
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Abstract
The utility model discloses an 8D latching answering machine, and is characterized in that the 8D latching answering machine comprises an 8D latch, eight groups used push-button switches S1-S8, eight groups used light-emitting diodes L1-L8 which are used to show effective answer state, a reset button FW and a direct current power supply. The push-button switches S1-S8 are respectively connected with the feet D1-D8 of the 8D latch. The light-emitting diodes L1-L8 are respectively connected with the feet Q1-Q8 of the 8D latch. The answering machine has a simple circuit structure and a simple display mode, is convenient to be operated and is economical and practical.
Description
Technical field
The utility model relates to the question-and-answer game apparatus technical field.
Background technology
Present commercially available all kinds of question-and-answer game apparatus complex structures, the cost height, the fault rate height, performance is stable inadequately, races to be the first to answer a question requirement in the time of can not satisfying units such as school, office and hold competition.
Summary of the invention
Technical problem to be solved in the utility model is how to provide a kind of 8D to latch question-and-answer game apparatus, and this question-and-answer game apparatus circuit structure is simple, easy to operate, and display mode is simple, and is economical and practical.
The technical matters that the utility model proposed is to solve like this: construct a kind of 8D and latch question-and-answer game apparatus, it is characterized in that, comprise that 8D latch, 8 group pushbutton switch S1～S8,8 groups are raced to be the first to answer a question effective status led L1～L8, reset key FW and dc power supply constitutes, pushbutton switch S1～S8 connects the pin D1～D8 of described 8D latch respectively, and light emitting diode L1～L8 connects the pin (Q1～Q8) of described 8D latch.
Latch question-and-answer game apparatus according to 8D provided by the utility model, it is characterized in that, the common port of described pushbutton switch S1～S8 connects power supply, with the corresponding respectively resistance R 1～R8 that is connected with of link of 8D latch.
Latch question-and-answer game apparatus according to 8D provided by the utility model, it is characterized in that, the corresponding respectively diode VD1～VD8 that is connected with of link of described light emitting diode L1～L8 and 8D latch, the common port of diode VD1～VD8 connects the circuit that resistance R 19, R10, triode VT1 and described reset key FW constitute.
The utility model is compared with present commercially available all kinds of question-and-answer game apparatus, and circuit structure is more succinct, and is easy to operate, and display mode is simple, stable performance, low cost of manufacture, not only economy but also practicality.Can satisfy when holding competition, can show and race to be the first to answer a question effectively and group in units such as school, offices.
Description of drawings
Fig. 1 is a circuit structure diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model is by a slice 8D latch 74LS373,8 group keyswitch S1-S8, and 8 groups are raced to be the first to answer a question effective status led L1-L8, and reset key FW and 5V dc power supply are formed.This 8 tunnel contest question-and-answer game apparatus, every group is controlled by one and races to be the first to answer a question keyswitch, and high level represents that question-and-answer game apparatus is effective.Host's reset key FW is used to control the total system zero clearing and races to be the first to answer a question effectively begin the startup controlled, during whenever by a reset key FW, 8D latch control end G is a high level, if any is not all pressed among the group keyswitch S1-S8, the input end D that is corresponding 8D latch is low level, corresponding light emitting diode is all not luminous, and the expression question-and-answer game apparatus is being prepared the state of racing to be the first to answer a question.When pressing reset key FW, 8D latch control end G is a high level, if push button among the S1-S8 any or several down state that is in, right with it input end is a high level, corresponding output terminal also is a high level, corresponding lumination of light emitting diode, the expression person of racing to be the first to answer a question violation.When having only whenever, and after reset key is lifted, race to be the first to answer a question and be only effectively by reset key FW next time.Native system has first and races to be the first to answer a question signal discriminating and latch function.The host with system reset and make race to be the first to answer a question effectively begin after, first races to be the first to answer a question and presses the input pin of racing to be the first to answer a question the button correspondence and connect noble potential, the corresponding output terminal of 8D latch is high level immediately.Diode VD1-VD8 forms AND circuit, makes triode VT1 base stage obtain noble potential and saturation conduction latch G is a low level, and the input signal of 8D latch is latched in output terminal, and the signal of input end changes will not influence output terminal.The light emitting diode that correspondence is lighted indicates first person's of racing to be the first to answer a question rank, loudspeaker pronunciation caution when showing effective group.Power supply adopts the power supply of 5V power supply, obtains with 7805 regulator blocks.
Claims (3)
1, a kind of 8D latchs question-and-answer game apparatus, it is characterized in that, comprise that 8D latch, 8 group pushbutton switch S1～S8,8 groups are raced to be the first to answer a question effective status led L1～L8, reset key FW and dc power supply constitutes, pushbutton switch S1～S8 connects the pin D1～D8 of described 8D latch respectively, and light emitting diode L1～L8 connects the pin (Q1～Q8) of described 8D latch.
2,8D according to claim 1 latchs question-and-answer game apparatus, it is characterized in that, the common port of described pushbutton switch S1～S8 connects power supply, with the corresponding respectively resistance R 1～R8 that is connected with of link of 8D latch.
3,8D according to claim 1 latchs question-and-answer game apparatus, it is characterized in that, the corresponding respectively diode VD1～VD8 that is connected with of link of described light emitting diode L1～L8 and 8D latch, the common port of diode VD1～VD8 connects the circuit that resistance R 19, R10, triode VT1 and described reset key FW constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200816138U CN201107602Y (en) | 2007-10-24 | 2007-10-24 | 8D latch answering racer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200816138U CN201107602Y (en) | 2007-10-24 | 2007-10-24 | 8D latch answering racer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107602Y true CN201107602Y (en) | 2008-08-27 |
Family
ID=39959412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200816138U Expired - Fee Related CN201107602Y (en) | 2007-10-24 | 2007-10-24 | 8D latch answering racer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107602Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297099A (en) * | 2015-06-06 | 2017-01-04 | 重庆尊来科技有限责任公司 | Intellectual service movable appearance |
-
2007
- 2007-10-24 CN CNU2007200816138U patent/CN201107602Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297099A (en) * | 2015-06-06 | 2017-01-04 | 重庆尊来科技有限责任公司 | Intellectual service movable appearance |
| CN106297099B (en) * | 2015-06-06 | 2018-08-07 | 重庆尊来科技有限责任公司 | Intellectual service movable appearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |