线型及其含义：

比例：

水、汽管道代号：

工艺管道施工图常用图例：

水、汽管道阀门和附件图例：

给排水、采暖常用图例：

通风空调工程常用图例：

风道代号：

风道、阀门及附件图例：

风口和附件代号：

暖通空调设备图例：

调控装置及仪表图例：

各种执行机构可与风阀、水阀组合 表示相应功能的控制阀门。

消防工程基本图形符号：

消防工程辅助符号：

消防工程灭火器符号：

消防管路及配件符号：

消防工程固定灭火器系统符号：

消防工程灭火设备安装处符号：

消防设施：

消防工程自动报警设备符号：

管道图例：

管道附件：

管道连接：

管件：

常见阀门：

给水配件：

小型给水排水构筑物：

给水排水设备：

仪表：

管道和设备布置平面图、剖面图示例：

管道和设备布置平面图应按假象除去上层板后俯视规则绘制，其相应的垂直剖面图应在平面图中表明剖切符号。

标准层平面图

平、剖面示例

平面图、剖面图索引符号的画法：

平面图、剖面图中的局部需另绘详图时，应在平、剖面图上标注索引符号。索引符号的画法见下图。

索引符号的画法

内视符号画法：

当表示局部位置的相互关系，在平面图上应标注内视符号。

内视符号画法

系统编号：

1、一个工程设计中同时有供暖、通风、空调等两个及以上的不同系统时，应进行系统编号。

2、暖通空调系统编号、入口编号，应由系统代号和顺序号组成。

3、系统代号用大写拉丁字母表示，顺序号用阿拉伯数字表示。当一个系统出现分支时，可采用下图的画法。

系统代号

立管号的画法

竖向布置的垂直管道系统，应标注立管号，在不一致引起误解时，可只标注序号，但应与建筑轴线编号有明显区别。

立管号的画法

管道相对标高的画法：

1、在无法标注垂直尺寸的图样中，应标注标高。标高应以m为单位，并应精确到cm或mm。

2、标高符号应以直角等腰三角形表示。当面标准层较多时，可只标注与本层楼（地）板面的相对标高。

3、水、汽管道所标高未予说明时，应表示为管中心标高。

4、水、汽管道标注管道外底或顶标高时，应在数字前加“底”或“顶”字样。

5、矩形风管所注标高应表示管底标高；圆形风管所注标高应表示管中心标高。当不采用此方法标注时，应进行说明。

6、平面图中无坡度要求的管道标高可标注在管道截面尺寸后的括号内。必要时，应在标高数字前加“底”或“顶”的字样。

相对标高的画法

管道截面尺寸的标注符号及画法：

1、低压流体输送用焊接管道规格应标注公称通径或压力。公称通径的标记应由字母“DN”后跟一个以亳米表示的数值组成；公称压力的代号应为“PN”。

2、输送流体用无缝钢管、螺旋缝或直缝焊接钢管、铜管、不锈钢管，当需要注明外径和壁厚时，应用“D（或Φ）外径×壁厚”表示。在不致引起误解时，也可采用公称通径表示。

3、塑料管外径应用“de”表示。

4、圆形风管的截面定型尺寸应以直径“Φ”表示，单位应为mm.

5、矩形风管（风道）的截面定型尺寸应以“A×B”表示。“A”应为该视图投影面的边长尺寸，“B”应为另一边尺雨。A、B单位均应为mm。

6、水平管道的规格宜标注在管道的上方；竖向管道的规格宜标注在管道的左侧。双线表示的管道，其规格可标注在管道轮廓线内。

管道截面尺寸的画法

多条管线的规格标注方法：

多条管线规格的画法

风口、散流器表示方法：

风口、散流器的表示方法

定位尺寸的表示方法：

定位尺寸的表示方式

单线管道转向的画法：

单线管道转向的画法

双线管道转向的画法：

双线管道转向的画法

单线管道分支的画法：

单线管道分支的画法

双线管道分支的画法：

双线管道分支的画法

送风管转向的画法：

送风管转向的画法

回风管转向的画法：

管道断开的画法

平面图、剖视图中管道因重叠、密集需断开时，应采用断开画法。

管道断开的画法

管道在本图中断的画法：

管道在本图中断，转至其他图面表示（或由其他图面引来）时，应注明转至（或来自的）的图纸编号。

管道在本图中断的画法

管道交叉的画法：

管道交叉的画法

管道跨越的画法：

管道跨越的画法

","gnid":"96bf3ce7db9b915d1","img_data":[{"flag":2,"img":[{"desc":"","height":"1332","title":"","url":"https://p0.ssl.img.360kuai.com/t0169d7a682bd527725.jpg","width":"1080"},{"desc":"","height":"335","title":"","url":"https://p0.ssl.img.360kuai.com/t01779a9f0f74f48c75.jpg","width":"1080"},{"desc":"","height":"1229","title":"","url":"https://p0.ssl.img.360kuai.com/t014228980b32043ef9.jpg","width":"1080"},{"desc":"","height":"1452","title":"","url":"https://p0.ssl.img.360kuai.com/t01d03313ccca65af5f.jpg","width":"979"},{"desc":"","height":"1317","title":"","url":"https://p0.ssl.img.360kuai.com/t01733878c2aabbc59f.jpg","width":"779"},{"desc":"","height":"703","title":"","url":"https://p0.ssl.img.360kuai.com/t0103ac1cba4779b650.jpg","width":"849"},{"desc":"","height":"2100","title":"","url":"https://p0.ssl.img.360kuai.com/t01aad111d175f7cb35.jpg","width":"762"},{"desc":"","height":"1937","title":"","url":"https://p0.ssl.img.360kuai.com/t011802c9331450ef98.jpg","width":"938"},{"desc":"","height":"1299","title":"","url":"https://p0.ssl.img.360kuai.com/t01c42754d2201361e2.jpg","width":"825"},{"desc":"","height":"544","title":"","url":"https://p0.ssl.img.360kuai.com/t014cd1a95e8bb56df4.jpg","width":"839"},{"desc":"","height":"692","title":"","url":"https://p0.ssl.img.360kuai.com/t01dd32b4f85692d54b.jpg","width":"744"},{"desc":"","height":"1323","title":"","url":"https://p0.ssl.img.360kuai.com/t0127c63e9ffdd065c0.jpg","width":"938"},{"desc":"","height":"1131","title":"","url":"https://p0.ssl.img.360kuai.com/t01dc79724e6edf591c.jpg","width":"938"},{"desc":"","height":"1528","title":"","url":"https://p0.ssl.img.360kuai.com/t0199b468cf5acf7ee5.jpg","width":"938"},{"desc":"","height":"2008","title":"","url":"https://p0.ssl.img.360kuai.com/t01513e4a8aa9c54a80.jpg","width":"915"},{"desc":"","height":"1532","title":"","url":"https://p0.ssl.img.360kuai.com/t01d82b80e506d61c27.jpg","width":"643"},{"desc":"","height":"604","title":"","url":"https://p0.ssl.img.360kuai.com/t01e40a9b2916ec148f.jpg","width":"631"},{"desc":"","height":"402","title":"","url":"https://p0.ssl.img.360kuai.com/t017fd9f73dd4b18dbd.jpg","width":"825"},{"desc":"","height":"737","title":"","url":"https://p0.ssl.img.360kuai.com/t0180df24cb65a3b2cd.jpg","width":"709"},{"desc":"","height":"429","title":"","url":"https://p0.ssl.img.360kuai.com/t0182f2a3e839b82a8a.jpg","width":"803"},{"desc":"","height":"689","title":"","url":"https://p0.ssl.img.360kuai.com/t0147271253d2fef171.jpg","width":"767"},{"desc":"","height":"355","title":"","url":"https://p0.ssl.img.360kuai.com/t0174f8109fa207ad3a.jpg","width":"690"},{"desc":"","height":"248","title":"","url":"https://p0.ssl.img.360kuai.com/t01ebc2cf37cf9e5c2b.jpg","width":"679"},{"desc":"","height":"1160","title":"","url":"https://p0.ssl.img.360kuai.com/t0150cfe93dc19a5dad.jpg","width":"743"},{"desc":"","height":"1209","title":"","url":"https://p0.ssl.img.360kuai.com/t012cc7369421beafe8.jpg","width":"743"},{"desc":"","height":"519","title":"","url":"https://p0.ssl.img.360kuai.com/t017c50432a9f399ef1.jpg","width":"780"},{"desc":"","height":"831","title":"","url":"https://p0.ssl.img.360kuai.com/t01ecc5572dc99c0dcd.jpg","width":"803"},{"desc":"","height":"686","title":"","url":"https://p0.ssl.img.360kuai.com/t011836769e38ebba67.jpg","width":"803"},{"desc":"","height":"682","title":"","url":"https://p0.ssl.img.360kuai.com/t018bc8a72ae4ffd47a.jpg","width":"469"},{"desc":"","height":"1038","title":"","url":"https://p0.ssl.img.360kuai.com/t0108d8910233763b7e.jpg","width":"733"},{"desc":"","height":"922","title":"","url":"https://p0.ssl.img.360kuai.com/t01234f5646e29b0689.jpg","width":"803"},{"desc":"","height":"1021","title":"","url":"https://p0.ssl.img.360kuai.com/t01ac715cca728758b2.jpg","width":"731"},{"desc":"","height":"784","title":"","url":"https://p0.ssl.img.360kuai.com/t01f22629ccf62d3bd8.jpg","width":"430"},{"desc":"","height":"1187","title":"","url":"https://p0.ssl.img.360kuai.com/t01a54c3a8dc5b771ec.jpg","width":"672"},{"desc":"","height":"900","title":"","url":"https://p0.ssl.img.360kuai.com/t01029f9e90120cb433.jpg","width":"767"},{"desc":"","height":"922","title":"","url":"https://p0.ssl.img.360kuai.com/t01a169610bcf90e289.jpg","width":"743"},{"desc":"","height":"1275","title":"","url":"https://p0.ssl.img.360kuai.com/t01195101f5213c388f.jpg","width":"684"},{"desc":"","height":"1347","title":"","url":"https://p0.ssl.img.360kuai.com/t01cdc5b5022f3308af.jpg","width":"661"},{"desc":"","height":"389","title":"","url":"https://p0.ssl.img.360kuai.com/t01af47e48e6f25197b.jpg","width":"660"},{"desc":"","height":"362","title":"","url":"https://p0.ssl.img.360kuai.com/t01f7e2a6984b17a228.jpg","width":"605"},{"desc":"","height":"230","title":"","url":"https://p0.ssl.img.360kuai.com/t01517270b46bc91792.jpg","width":"795"},{"desc":"","height":"177","title":"","url":"https://p0.ssl.img.360kuai.com/t01474a1497763a3777.jpg","width":"692"},{"desc":"","height":"351","title":"","url":"https://p0.ssl.img.360kuai.com/t01d8857634892abe5c.jpg","width":"903"},{"desc":"","height":"282","title":"","url":"https://p0.ssl.img.360kuai.com/t014f1c3edf13555c38.jpg","width":"795"},{"desc":"","height":"174","title":"","url":"https://p0.ssl.img.360kuai.com/t01e1cce9e2497246b6.jpg","width":"663"},{"desc":"","height":"106","title":"","url":"https://p0.ssl.img.360kuai.com/t0198adc5e104346bc1.jpg","width":"260"},{"desc":"","height":"177","title":"","url":"https://p0.ssl.img.360kuai.com/t01bb8a2342e7ad7777.jpg","width":"620"},{"desc":"","height":"240","title":"","url":"https://p0.ssl.img.360kuai.com/t01ca041d4aefd8d17a.jpg","width":"673"},{"desc":"","height":"151","title":"","url":"https://p0.ssl.img.360kuai.com/t01e4873c3ceba619be.jpg","width":"677"},{"desc":"","height":"109","title":"","url":"https://p0.ssl.img.360kuai.com/t010676848b5a0d0eeb.jpg","width":"705"},{"desc":"","height":"158","title":"","url":"https://p0.ssl.img.360kuai.com/t01faa5743dbe9450e6.jpg","width":"513"},{"desc":"","height":"184","title":"","url":"https://p0.ssl.img.360kuai.com/t01cc55a80dda572fdf.jpg","width":"579"},{"desc":"","height":"174","title":"","url":"https://p0.ssl.img.360kuai.com/t01d8c2c725808f309b.jpg","width":"580"},{"desc":"","height":"222","title":"","url":"https://p0.ssl.img.360kuai.com/t017b545f17882352b2.jpg","width":"593"},{"desc":"","height":"332","title":"","url":"https://p0.ssl.img.360kuai.com/t01d34b054a52d6ac4d.jpg","width":"573"},{"desc":"","height":"315","title":"","url":"https://p0.ssl.img.360kuai.com/t01daac3173beaeb8b0.jpg","width":"551"},{"desc":"","height":"156","title":"","url":"https://p0.ssl.img.360kuai.com/t01c41f2b228021279b.jpg","width":"610"},{"desc":"","height":"183","title":"","url":"https://p0.ssl.img.360kuai.com/t014ab5f164862126f8.jpg","width":"412"},{"desc":"","height":"183","title":"","url":"https://p0.ssl.img.360kuai.com/t0189683f0bc2bf9e2b.jpg","width":"479"},{"desc":"","height":"248","title":"","url":"https://p0.ssl.img.360kuai.com/t01603b94e48dd40128.jpg","width":"515"}]}],"original":0,"pat":"art_src_0,fts0,sts0","powerby":"cache","pub_time":1689230515000,"pure":"","rawurl":"http://zm.news.so.com/84f69cf98eb0e218109c5652cc326b6d","redirect":0,"rptid":"463b02760b3b8e73","rss_ext":[],"s":"t","src":"范文分享大王","tag":[],"title":"收藏！超全CAD图例符号画法大全

宣剑敬1638【机械制图】视图、剖视图与断面图的标注方法 -
骆阅茂17249719595 ______ 向视图:在向视图的上方用大写字母标注如“A”,并在相应视图的附近用箭头指明投射方向并并标注相同的字母. 剖视图:用剖切符号及剖切线大写字母标注出剖切位置、剖切后的投射方向和剖视图名称. 断面图:画出端面图像,并画上剖面符号,移出断面图和重合端面图标注略有不同.

宣剑敬1638cad断面符号怎样标注 -
骆阅茂17249719595 ______ 如图所示,想要在停车位的剖面图中标注断面符号 如图所示,选择“符号标注” 然后点击“剖切符号” 弹出“剖切符号”对话框,如图所示,选择一种需要的剖切类型 这里选择第一个为例,然后直接在需要剖切的部分拉线,空格 6 发现剖面标记符号画好了,提示:图中的剖切数字可以根据图纸的位置等改动

宣剑敬1638请问建筑平面图、立面图、剖面图常用的符号分别有哪些?这三种图纸最好是分别写出一些常用的符号,感激! -
骆阅茂17249719595 ______[答案] 平:剖切符号、索引符号、引出线、对称符号、连接符号、指北针; 立:索引符号、引出线、对称符号、连接符号; 剖:索引符号、引出线、对称符号、连接符号; 此外还有详图符号.

宣剑敬1638建筑中转折的剖切符号的剖面的画法?PS:请问下图中哪个是正确的. -
骆阅茂17249719595 ______ 第二个是正确的.

宣剑敬1638剖面图符号左面的这种符号 和右面的这种符号分别应该从哪面向哪面看?这两种符号有什么区别? -
骆阅茂17249719595 ______[答案] 向数字方向看.左图是剖面符号,除应画出剖切面切到部分的图形外,还应画出沿投射方向看到的部分;右图是断面图,只需(用粗实线)画出剖切面切到部分的图形.基本制图符号.

宣剑敬1638关于移出断面图的标注问题按投影关系配置的断面图,字母、剖切位置符
骆阅茂17249719595 ______ 未配置在剖切线上的移出断面图,当图形不对称时,要用剖切符号表明剖切位置,画箭头指示投影方向,并注写字母;如果图形对称,可省略箭头. 配置在剖切符号延长线上的移出断面图,当图形不对称时,可省略字母,若图形对称可不标注,此时,应用细点画线画出剖切位置. 按投影关系配置的移出断面图,可省略箭头. 重合断面图的轮廓线用细实线绘制.当视图中轮廓线与重合断面图的图形重叠时,视图中的轮廓线仍应连续画出,不可间断;对称的重合断面不必标注;不对称的重合断面可省略标注.

宣剑敬1638剖面图和断面图有何不同 -
骆阅茂17249719595 ______ 本题参考答案:(来自猴岛游戏论坛一飞大叔很温柔的解答) 断面图与剖面图的区别在于断面图只画形体被剖开后断面的投影,而剖面图要画出形体 被剖开后整个余下部分的投影 1)剖面图是形体剖切之后剩下部分的投影,是体的投影.断面图是形体剖切之后断面的 投影,是面的投影.剖面图中包含断面图. 2)剖面图用剖切位置线、投射方向线和编号来表示.断面图则只画剖切位置线与编号, 用编号的注写位置来代表投射方向. 3)剖面图可用两个或两个以上的剖切平面进行剖切,断面图的剖切平面通常只能是单一 的.