The utility model relates to a hydrological monitoring and sampling device, a river sediment content measuring and sampling device, which comprises a body with a cylindrical cavity inside, a cylindrical core rotated around an axis in the middle of the body, a number of outer groove holes are arranged at intervals along the length direction of the body, and the outer groove holes are arranged along the radial direction of the body; the core body is sealed and rotated with the inner wall of the body, and the core body runs through. An inner groove hole corresponding to the outer groove hole and forming a sealed cavity with the inner wall after the core body rotates 90 degrees is provided; a drain valve is set at 90 degrees outside the body, and the inner groove hole is rotated and connected with the inner side of the drain valve; the front and rear sides of the body are respectively provided with an end cap, the outer side of the body is provided with a lifting arm, and one end of the core body is fixed with a rotating arm. The utility model can make the flowing river water pass through, realize one-time stratified sampling of water body, greatly improve the sampling accuracy, the sampled sample is sealed inside, and will not be affected by other water layers when recovered.
【技术实现步骤摘要】
河道泥沙含量测定取样装置
本技术涉及水文监测取样装置,具体涉及一种河道泥沙含量测定取样装置。
技术介绍
为了监测河道内的泥沙含量,对水土流失现象进行有效防控治理,通常需要对河道进行取样。由于泥沙易沉积,不同水深的泥沙含量不同,需要在不同水深的情况下进行取样,方能整体反映出河道中水流泥沙含量。传统取样桶取样的方式无法确定取样深度,且在下放及收回取样桶的过程中,水流对桶内已有的泥沙进行冲刷,导致单位体积的水样中泥沙质量不准确,在后期测定时影响结果。尤其是河床处,传统的取样桶与河床接触后会引起底部泥沙上扬浑浊,导致取样的泥沙含量大大增加。因此如何进行分层取样,并能够减少下放及收回时避免水流影响是需要解决的问题。
技术实现思路
本申请为解决上述现有技术问题,提供一种能够在水体内分层取样,在下放及回收时密闭可靠,避免已取样品收到水流干扰的泥沙含量测定取样装置。本技术采用以下技术方案实现,河道泥沙含量测定取样装置,包括内部设有圆柱形内腔的本体,本体的中部设有绕轴线转动的圆柱形芯体,所述本体的外壁沿着长度方向间隔开设若干外槽孔,外槽孔沿着本体径向贯通设置;所述芯体与本体内壁密封转动连接,所述芯体上贯通设有与外槽孔对应且当芯体转动90°后与内壁形成密封腔体的内槽孔;所述本体外侧设有与外槽孔呈90°设置的放水阀,内槽孔与放水阀的内侧转动连通设置;所述本体的前后侧分别设有端盖,本体的外侧设有提臂,所述芯体的一端固定设有转动臂。为了实现快速组装,所述提臂连接固定环,固定环与本体的一端套装固定连接。为便于使用,所述提臂为U形结构,提臂的中部设有使转动臂穿过的轴套。为便于操作,所述转动 ...
【技术保护点】
1.河道泥沙含量测定取样装置,包括内部设有圆柱形内腔的本体,其特征在于,所述本体的中部设有绕轴线转动的圆柱形芯体,所述本体的外壁沿着长度方向间隔开设若干外槽孔,外槽孔沿着本体径向贯通设置;所述芯体与本体内壁密封转动连接,所述芯体上贯通设有与外槽孔对应且当芯体转动90°后与内壁形成密封腔体的内槽孔;所述本体外侧设有与外槽孔呈90°设置的放水阀,内槽孔与放水阀的内侧转动连通设置;所述本体的前后侧分别设有端盖,本体的外侧设有提臂,所述芯体的一端固定设有转动臂。
【技术特征摘要】
1.河道泥沙含量测定取样装置,包括内部设有圆柱形内腔的本体,其特征在于,所述本体的中部设有绕轴线转动的圆柱形芯体,所述本体的外壁沿着长度方向间隔开设若干外槽孔,外槽孔沿着本体径向贯通设置;所述芯体与本体内壁密封转动连接,所述芯体上贯通设有与外槽孔对应且当芯体转动90°后与内壁形成密封腔体的内槽孔;所述本体外侧设有与外槽孔呈90°设置的放水阀,内槽孔与放水阀的内侧转动连通设置;所述本体的前后侧分别设有端盖,本体的外侧设有提臂,所述芯体的一端固定设有转动臂...
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