我国海洋沉积调查现已逐步向深入发展,重力活塞取样管是采集海底沉积物岩芯比较理想的常规工具之一,目前正向着长,而无扰动的大口径取样管的方向发展,取样长度由几米到十几米、甚至长达二十几米。样管的加长、口径的加大、重量的增加,给船舷工作带来了相应的困难和危险。原来使用的固定托架已不能适应深海作业的需要,迫切需要改进、更新这一配套设备。为解决这一矛盾,我们研制了两个系列的转动托架。在几年的使用中收到了令人满意的效果。它即操作方便、又安全可靠、大大减轻了调查人员 China’s marine sediment survey has been gradually developed in-depth, gravity piston sampling tube is the ideal tool for collecting seabed sediment cores is one of the ideal, is now moving towards the long, without perturbation of the large diameter sampling tube direction, sampling length from A few meters to ten meters, or even up to twenty meters. The extension of sample tube, the increase of caliber and the increase of weight have brought corresponding difficulties and dangers to the ship’s side work. The original fixed bracket has been unable to adapt to the needs of deep-sea operations, there is an urgent need to improve and update this ancillary equipment. To solve this conflict, we developed two series of rotating bracket. In a few years of use has received satisfactory results. It is easy to operate, but also safe and reliable, greatly reducing the investigators