下面glj同学问起止回阀的构造,看到我一直乐,只有我们学工的人会有这样的好奇心. 花了两小时,网上找了一家这种止回阀生产厂家的网址,构造图贴上来,

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全本的说明书见下面连接. http://www.rainbird.com/pdf/diy/ValveInstallTips.pdf

找到这张图之前找到一个没图的专利申请.看得我这个头晕.我只把摘要抄下来,让朋友们陪我感叹一下学工也是挺难(glj元旦还在画制冷系统图需要特别安慰一下)

Abstract

An anti-syphon valve comprises a base pipe having inlet and outlet legs and a valve seat, disposed at the top of the base pipe within a valve stem post, which can be rotated selectively to block the inlet leg (closed position) or open it (open position). A metering peg extends from the valve stem post into a receptacle in the valve seat. Inlet and outlet passages corresponding to the inlet and outlet legs are disposed above the seat, and a float located at the top of the inlet passage allows fluid flow from the inlet passage into the outlet passage in the open position while blocking fluid flow from the outlet passage to the inlet passage in the closed position. Vent passages are provided above the float to enable communication of the outlet passage to atmosphere in the closed position. A handle is provided on the valve stem post to selectively rotate the latter to place the valve in open or closed position. A spline arrangment between the handle and the valve stem post requires the handle to be lifted to engage the valve stem post before rotating it.

全文在这里:http://www.patentstorm.us/patents/5492145.html

看了这些还没有彻底打消你改行学工的念头的话你们再看看这张图.

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这是我骑车来上班路上照到的.也不知道是连的什么玩意儿. 我还总抱怨我电视机后面电线一大堆找不到谁是谁,想想要管这堆线的人,老板来说左边第三捆里面往外数第八层靠近绑札带的那根红线上怎么没有信号我觉得他就直接去跳河算了