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    • 1. 发明申请
    • EXTENDIBLE SERVICE PIT
    • 可扩展的服务点
    • WO2006026824A1
    • 2006-03-16
    • PCT/AU2005/001367
    • 2005-09-08
    • MAGOULIAS, FranciscaMAGOULIAS, George
    • MAGOULIAS, George
    • E04H5/06
    • H02G9/10E02D29/12E02D29/1409
    • A pit (10) for installation in a hole (13) in the ground to provide access to an underground service line (11). The pit (10) comprises a body (15) defining a central pit area (25). The body (15) has a side wall structure (17) surrounding the central pit area (25), an open top (21) adapted to receive a cover (23), and a base (19). The body (15) has upper and lower body sections (31, 33) moveable one relative to another for varying the depth of the pit area (25). The two sections (31, 33) are in partial overlapping relationship, and locking means (35) are provided for releasably securing the overlapping sections (31, 33) together. With this arrangement, the sidewall structure (17) is selectively extendible and contractible for varying the level of the open top (21). The base (19) has provision for the pit (10) to be fitted around the service line (11) even when the latter is already installed underground, thereby avoiding the need to cut the service line (11) to accommodate it within the pit (10).
    • 一个用于安装在地面上的孔(13)中以提供进入地下服务线(11)的坑(10)。 凹坑(10)包括限定中心凹坑区域(25)的主体(15)。 主体(15)具有围绕中心凹坑区域(25)的侧壁结构(17),适于接收盖子(23)的开口顶部(21)和基座(19)。 主体(15)具有上下主体部分(31,33),以相对于另一主体部分移动,以改变凹坑区域(25)的深度。 两个部分(31,33)处于部分重叠关系,并且提供锁定装置(35)以将重叠部分(31,33)可释放地固定在一起。 通过这种布置,侧壁结构(17)可以选择性地延伸和收缩,以改变敞开顶部(21)的水平。 基座(19)即使在后者已经安装在地下时,也可以将坑(10)设置在服务线(11)周围,从而避免切割服务线(11)以将其容纳在坑内 (10)。