推荐回答（1个）
碗扣式脚手架是一种新型承插式钢管脚手架。脚手架独创了带齿碗扣接头，具有拼拆迅速、省力，结构稳定可靠，配备完善，通用性强，承载力大，安全可靠，易于加工，不易丢失，便于管理，易于运输，应用广泛等特点。曾数次获国际及国内的各种嘉奖，是建设部2000年以前十项重点推广新技术之一。
一.碗扣式脚手架杆配件规格及用途
碗扣式钢管脚手架的杆配件按其用途可分为主构件、辅助构件、专用构件三类。
(1) 主构件
用以构成脚手架主体的部件。其中的立杆和顶杆各有两种规格，在杆上均焊有间距为600mm的下碗扣。若将立杆和顶杆相互配合接长使用，就可构成任意高度的脚手架。立杆接长时,接头应错开，至顶层后再用两种长度的顶杆找平。
(a)立杆由一定长度直径48mm x 3.5mm钢管上每隔0.6m 安装碗扣接头，并在其顶端焊接立杆焊接管制成。用作脚手架的垂直承力杆；
(b)顶杆即顶部立杆，在顶端设有立杆的连接管，以便在顶端插人托撑。用作支撑架（柱）、物料提升架等顶端的垂直承力杆；
(c)横杆由一定长度的直径48 mm x 3.5mm 钢管两端焊接横杆接头制成。用于立杆横向连接管，或框架水平承力杆；
(d)单横杆仅在直径48 mm x 3.5mm钢管一端焊接横杆接头；用作单排脚手架横向水平杆；
(e)斜杆在直径48 mm x 3.5mm钢管两端铆接斜杆接头制成，用于增强脚手架的稳定强度，提高脚手架的承载力。斜杆应尽量布置在框架节点上；
(f)底座由150mm x 150mm x 8mm的钢板在中心焊接连接杆制成，安装在立杆的根部，用作防止立杆下沉并将上部荷载分散传递给地基的构件。
(2)辅助构件
用于作业面及附壁拉结等的杆部件。
(a)间横杆是为满足普通钢或木脚手板的需要而专设的杆件，可搭设于主架横杆之间的任意部位，用以减小支承间距和支撑挑头脚手板；
(b)架梯由钢踏步板焊在槽钢上制成，两端带有挂钩，可牢固地挂在横杆上，用于作业人员上下脚手架的通道；
(c)连墙撑用于脚手架与墙体结构间的连接件，以加强脚手架抵抗风载及其他永久性水平荷载的能力,防止脚手架倒塌和增强稳定性的构件。
(3)专用构件
用作专门用途的杆部件。
(a)悬挑架由挑杆和撑杆用碗扣接头固定在楼层内支承架上构成。用于其上搭设悬挑脚手架，可直接从楼内挑出，不需在墙体结构设埋件；
(b) 提升滑轮用于提升小物料而设计的杆部件，由吊柱、吊架和滑轮等组成。吊柱可插入宽挑梁的垂直杆中固定，与宽挑梁配套使用。
二.构造特点
碗扣式脚手架是在一定长度的直径48mm x 3.5mm钢管立杆和顶杆上，每隔600mm焊下碗扣及限位销，上碗扣则对应套在立杆上并可沿立杆上下滑动。安装时将上碗扣的缺口对准限位销后，即可将上碗扣抬起（沿立杆向上滑动）,把横杆接头插入下碗扣圆槽内，随后将上碗扣沿限位销滑下并沿顺时针方向旋转以扣紧横杆接头，与立杆牢固地连接在一起，形成框架结构。每个下碗扣内可同时装4横杆接头，位置任意。
碗扣脚手架主要产品规格
立杆
LG-120
48×3.5×1200
7.41
脚手架垂直承力杆
LG-180
48×3.5×1800
10.67
LG-240
48×3.5×2400
14.02
LG-300
48×3.5×3000
17.31
顶杆
DG-30
48×3.5×300
2.65
支撑架顶端垂直承力杆
DG-60
48×3.5×600
4.40
DG-90
48×3.5×900
5.51
DG-150
48×3.5×1500
8.6
专用杆
LG-220
48×3.5×2200
10.45
专用支撑
LG-240
48×3.5×2400
11.22
斜杆
XG-150
48×3.5×1500
7.11
900×1200mm框架
XG-170
48×3.5×1700
7.87
1200×1200mm框架
XG-216
48×3.5×2160
9.66
1200×1800mm框架
XG-234
48×3.5×2340
10.34
1500×1800mm框架
XG-255
48×3.5×2550
11.13
1800×1800mm框架
XG-300
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