JPH0362132U

JPH0362132U -

Info

Publication number: JPH0362132U
Application number: JP12172989U
Authority: JP
Priority date: 1989-10-17
Filing date: 1989-10-17
Publication date: 1991-06-18
Anticipated expiration: 2004-10-17
Also published as: JP2513825Y2

Description

[Brief explanation of drawings]

第１図〜第５図は本考案の一実施例を示すもの
であり、第１図は上枠上端面水平状態の点検筒の
上端部分側断面図、第２図は上枠上端面傾斜状態
の点検筒上端部分側断面図、第３図は上枠挿口部
と下枠の上枠受け口部との詳細説明図、第４図は
上枠目盛の説明図、第５図は上枠と下枠との開離
状態の側面図、第６図は他の実施例の側断面図、
第７図は従来例の上部切欠き側面図である。図中、１……排水桝、７Ａ……点検筒、８Ａ…
…蓋、９Ａ……上枠、９１Ａ……上枠挿口部、９
３Ａ……上枠上面、９４Ａ……上枠上段面、９５
Ａ……上枠側壁面、９６Ａ……上枠下縁面、９８
Ａ……Ｏリング、１０Ａ……下枠、１２Ａ……上
枠受け口、１４Ａ……下枠底段面、１５Ａ……下
枠側壁面、１６Ａ……下枠上縁面、０，１，２，
３，４，ＭＡＸ……目盛り。 Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a side cross-sectional view of the upper end of the inspection tube with the upper end of the upper frame in a horizontal state, and Figure 2 is a side sectional view of the upper end of the inspection tube with the upper end of the upper frame in a tilted state. 3 is a detailed explanatory view of the upper frame insertion part and the upper frame receptacle of the lower frame, Figure 4 is an explanatory view of the upper frame scale, and Figure 5 is an explanatory diagram of the upper frame and the upper frame. A side view of the lower frame in an open state, FIG. 6 is a side sectional view of another embodiment,
FIG. 7 is a top cutaway side view of the conventional example. In the diagram, 1... drainage basin, 7A... inspection pipe, 8A...
...Lid, 9A...Top frame, 91A...Top frame insertion part, 9
3A...Top surface of upper frame, 94A...Top surface of upper frame, 95
A... Upper frame side wall surface, 96 A... Upper frame lower edge surface, 98
A...O-ring, 10A...Bottom frame, 12A...Top frame socket, 14A...Bottom frame bottom step surface, 15A...Bottom frame side wall surface, 16A...Bottom frame top edge surface, 0, 1, 2 ，
3, 4, MAX...scale.

Claims

[Scope of Claim for Utility Model Registration] 1. An upper frame receptacle of a cylindrical lower frame, which is disposed at the upper opening of a drainage basin and has an upper frame receptacle at the upper end consisting of a bottom step surface, a side wall surface, and an upper edge surface, The insertion part of the cylindrical upper frame, which has the same diameter as the lower frame and has an insertion part at the lower end consisting of an upper surface, a side wall surface, and a lower edge surface, is inserted, and the upper surface or The lower frame and the upper frame are rotatably connected by bringing the lower edge surface into contact with the upper edge surface or the bottom step surface of the upper frame receptacle of the lower frame, and the side wall surface of the upper frame receptacle of the lower frame An O-ring is interposed between the opening of the upper frame and the side wall surface of the insertion part of the upper frame, and a lid is attached and sealed to the opening of the upper frame via a gasket. The edge surface or bottom step surface is inclined at a predetermined angle θ with respect to the axis, and the top step surface or bottom edge surface of the insertion part of the upper frame is aligned with the top edge surface or bottom step surface of the upper frame receptacle of the lower frame. It is tilted with respect to the axis at the same angle θ as the inclination angle θ, and the angle α between the bottom step surface and the side wall surface is 90° or more at the upper frame receptacle of the lower frame, and the upper frame receptacle of the upper frame is In a configuration in which the angle between the upper stage surface and the side wall surface is the same α, scales are provided around the upper frame and the lower frame, respectively, and by matching the scale of the upper frame and the scale of the lower frame, it is possible to A structure of an opening at the upper end of a drainage basin, characterized in that the upper surface of the upper frame has a predetermined inclination angle. 2. The structure of the upper end opening of the drainage basin according to claim 1, wherein the angle α between the bottom step surface and the side wall surface of the upper frame receptacle of the lower frame is 90°+θ or more.