介绍了用于海底观测系统的常用海底接驳设备,如分支器、接头盒以及接驳盒等。阐述了用于密封海底接驳设备的几种水密方式,以及使用场合,为从事海底接驳设备的设计人员提供了一定的设计参考依据和密封方式的选择,可根据不同的情况选择不同的密封结构或选用联合密封方式,以期到达最好的密封效果。 The common seabed equipment used in subsea observation systems, such as splitters, splice boxes and splice boxes, is presented. In this paper, several watertight ways to seal seafloor connecting equipment are described, and the use occasions provide a reference for designers engaged in seafloor connecting equipment and a choice of sealing methods. Different seals can be selected according to different situations Structure or choose a joint seal, in order to achieve the best sealing effect.