The utility model discloses a leveling measuring prism centering rod, which comprises an outer rod, an inner rod, a connecting rod and a prism rod. The inner rod is held in the outer rod and locked by a positioning screw. The inner rod is connected with a connecting rod, a prism rod and a connecting rod through a connecting bolt, and the outer rod is embedded with four telescopic supporting legs. When moving, it is merged into the outer wall of the outer rod, which is convenient for the measuring personnel to carry; when using, the tip of the support part of the middle rod is aligned with the middle point of the cross-cut line of the measuring point, and through opening and adjusting the supporting leg, a triangular structure can be formed between the center rod and its various surfaces to ensure that the center rod can stand independently and stably in the measurement. At the measuring point, the center rod is leveled by adjusting the deflection direction and angle of the connecting rod and the prism rod, so that the surveyor can leveling more conveniently in any complicated ground conditions. The utility model has the advantages of simple structure, convenient operation, convenient carrying and quick leveling by measuring personnel, and improved measuring accuracy.
【技术实现步骤摘要】
水准测量棱镜对中杆
本技术涉及土木工程测量器材领域,具体为一种水准测量棱镜对中杆。
技术介绍
在基坑工程中,常需要对围护结构顶部及基坑顶部进行水准测量,来监测基坑在施工过程中的变形情况,以保证基坑工程的安全性。现有的水准测量对中杆常采用附加支撑架对其进行辅助竖立,并通过调节支撑腿的长度及打开的角度来进行整平。然而在城市基坑工程中,由于周边建筑物较多,距离较近,使得现场的工况更为复杂,实际测量过程中常会遇见坑顶坡度较陡、空间狭小的情况,不便测量人员通过调节支撑腿进行整平,增加了测量人员的工作难度,也对测量的精度产生了极大的影响,且现有的对中杆由于附加支撑架的存在,在测量较陡的坡顶过程中并不易于测量人员的携带。可见现有的对中杆在使用时有着诸多不足之处。
技术实现思路
本技术所要解决的技术问题是应对现有技术的不足,提供一种方便操作,便于携带,稳定性强,适用于复杂测量地况的棱镜对中杆。为解决上述技术问题,本技术提供了一种水准测量棱镜对中杆,包括外杆、内杆、连接杆和棱镜杆,所述内杆收纳于外杆内,并通过定位螺丝锁定位置;所述连接杆与内杆相互咬合并通过连接螺栓连接;所述棱镜杆与连接杆相互咬合并通过连接螺栓连接。优选的,所述外杆内壁上等距分布4个凹型槽,外壁上等距分布4个嵌入外壁的可伸缩支撑腿;所述外杆底端为锥状支撑部。优选的,所述可伸缩支撑腿的上部有转轴伸入外杆中,底部为锥状结构;所述可伸缩支撑腿由紧固螺丝控制长度。优选的,所述内杆的顶端为凹型结构与连接杆咬合,通过连接螺栓相连;所述内杆底部为4个嵌入凹型槽的定位块。优选的,所述棱镜杆的连接端为凹型结构与连接杆咬合,通过连接螺栓 ...
【技术保护点】
1.一种水准测量棱镜对中杆,其特征在于:包括外杆(1)、内杆(2)、连接杆(3)和棱镜杆(4),所述内杆(2)收纳于外杆(1)内,并通过定位螺丝(5)锁定位置;所述连接杆(3)与内杆(2)相互咬合并通过连接螺栓连接;所述棱镜杆(4)与连接杆(3)相互咬合并通过连接螺栓连接。
【技术特征摘要】
1.一种水准测量棱镜对中杆,其特征在于:包括外杆(1)、内杆(2)、连接杆(3)和棱镜杆(4),所述内杆(2)收纳于外杆(1)内,并通过定位螺丝(5)锁定位置;所述连接杆(3)与内杆(2)相互咬合并通过连接螺栓连接;所述棱镜杆(4)与连接杆(3)相互咬合并通过连接螺栓连接。2.根据权利要求1所述的水准测量棱镜对中杆,其特征在于:所述外杆(1)内壁上等距分布4个凹型槽(6),外壁上等距分布4个嵌入外壁的可伸缩支撑腿(7);所述外杆(1)底端为锥状支撑部(8)。3.根据权利要求2所述的水准测量棱镜对中杆,其特征在于,所述可伸缩支撑腿(7)的上部有转轴(71)伸入外杆(1)中,底部为锥状结构(72);所述可伸缩支撑腿(7)由紧固螺丝(73)控制长度。...
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