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2. 发明申请

WO1996021772A1 SOIL ANALYSIS AND SAMPLING SYSTEM 审中-公开
标题翻译：土壤分析和采样系统
公开(公告)号：WO1996021772A1
公开(公告)日：1996-07-18
申请号：PCT/NL1996000019
申请日：1996-01-10
申请人： FUGRO ENGINEERS B.V. , ZUIDBERG, Herman, Maria , SCHRIER, Willem, Henricus
发明人： FUGRO ENGINEERS B.V.
IPC分类号： E02D01/02
CPC分类号： E02D1/04 , E02D1/022
摘要： A soil analysis and sampling system is provided with an outer tube (1) having near its outer end a part (3) with a decreased inside diameter and at its outer end a drilling head (1') having an opening in the centre; a series of extension tubes (2) which are connected to the top end of the outer tube (1); an upward seal (18) for the extension tubes (2); a pump system for introducing compressed fluid under the upward seal (18); and a tool provided with a hydraulic cylinder (8) cooperating with the outer tube (1), which cylinder (8) comprises a piston (9) moving in a linear motion when fluid pressure is exerted onto one side of the piston (9), and a rod (12), connected at one outer end with the piston (9) and at the other outer end with a sampling tube (13) or bottom hole analysis probe, whereby the downward movement of the piston pushes the tube (13) or probe below the drilling head (1') into the ground. The pump system is connected to the extension tubes (2) such that under the upward seal (18) fluid in the outer tube (1) and the extension tubes (2) can be compressed, and that the hydraulic cylinder (8) is provided at the top with a passage (24) allowing this fluid under pressure to enter above the piston (9) and wherein the cylinder (8) and piston (9) are provided with a control device (24') which causes the fluid under pressure to pass through at one side of the piston (9) at a substantially constant rate when the fluid in the extension tubes (2) is compressed.
摘要翻译：土壤分析和取样系统具有外管（1），外管的外端具有内径减小的部分（3），其外端具有在中心具有开口的钻头（1'）; 连接到外管（1）的顶端的一系列延伸管（2）; 用于延伸管（2）的向上密封（18）; 用于在所述向上密封件（18）下方引入压缩流体的泵系统; 以及具有与所述外管（1）配合的液压缸（8）的工具，所述液压缸（8）包括当流体压力施加到所述活塞（9）的一侧时以直线运动的活塞（9）以及杆（12），其在一个外端与活塞（9）连接，并且在另一外端与采样管（13）或底部孔分析探头连接，由此活塞的向下运动推动管（13））或探头下方的钻头（1'）进入地面。泵系统连接到延伸管（2），使得在向上的密封件（18）下，外管（1）和延伸管（2）中的流体可以被压缩，并且提供液压缸（8）在顶部具有允许压力下的流体进入活塞（9）上方的通道（24），并且其中气缸（8）和活塞（9）设置有控制装置（24'），该控制装置使流体处于压力当延伸管（2）中的流体被压缩时，以基本恒定的速率通过活塞（9）的一侧。

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