CN2879312Y - 键盘抢答器 - Google Patents

键盘抢答器 Download PDF

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Publication number
CN2879312Y
CN2879312Y CN 200520098575 CN200520098575U CN2879312Y CN 2879312 Y CN2879312 Y CN 2879312Y CN 200520098575 CN200520098575 CN 200520098575 CN 200520098575 U CN200520098575 U CN 200520098575U CN 2879312 Y CN2879312 Y CN 2879312Y
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China
Prior art keywords
keyboard
question
answering machine
utility
model
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Expired - Fee Related
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CN 200520098575
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English (en)
Inventor
武永旺
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Individual
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Individual
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Priority to CN 200520098575 priority Critical patent/CN2879312Y/zh
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Publication of CN2879312Y publication Critical patent/CN2879312Y/zh
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Abstract

本实用新型提供一种键盘抢答器,键盘的上端与点触开关连接,下端连接抢答器,其点触开关可随选手和主持人的人数而设,并通过键盘数字键与主持人和选手对号进行抢答显示,本实用新型充分利用常备的电脑与键盘,使用方便准确。

Description

键盘抢答器
所属技术领域
本实用新型涉及一种竞赛时使用的抢答器,具体的说是一种键盘抢答器。
背景技术
现在使用的抢答器都是由单片机和二极管构成的,当选手按下按钮时,通过二极管显示选手号码,这种抢答器存在造价高、适用面不广和不易改装等缺陷。
发明内容
本实用新型提供一种键盘抢答器,能够准确的判断抢答的选手,且成本很低,并能充分利用计算机达到图、文、声效果,与投影仪连接则效果更好。
本实用新型所采用的技术方案是:键盘电路板的上端与点触开关连接,下端连接显示器,在键盘电路板中,通过数字键与点触开关连接沟通,点触开关可根据主持人和选手的数字需要而设,将键盘连接在电脑主机上,打开word程序,分别按下各点触开关,显示屏将显示其数字键对应的数字,其对应的数字与主持人和各个选手对号确定即可。
本实用新型的有益效果是:充分利用常备的电脑和键盘,准确判断抢答选手,成本低、效果好。
附图说明
附图是本实用新型连接结构示意图。
具体实施方式
图中:键盘2的上端与点触开关1连接,下端连接显示器3。

Claims (1)

1、一种键盘抢答器,其特征是:键盘(2)的上端与点触开关(1)连接,下端连接显示器(3)。
CN 200520098575 2005-10-31 2005-10-31 键盘抢答器 Expired - Fee Related CN2879312Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520098575 CN2879312Y (zh) 2005-10-31 2005-10-31 键盘抢答器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520098575 CN2879312Y (zh) 2005-10-31 2005-10-31 键盘抢答器

Publications (1)

Publication Number Publication Date
CN2879312Y true CN2879312Y (zh) 2007-03-14

Family

ID=37861732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520098575 Expired - Fee Related CN2879312Y (zh) 2005-10-31 2005-10-31 键盘抢答器

Country Status (1)

Country Link
CN (1) CN2879312Y (zh)

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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