JPH0358384U

JPH0358384U -

Info

Publication number: JPH0358384U
Application number: JP11738789U
Authority: JP
Priority date: 1989-10-04
Filing date: 1989-10-04
Publication date: 1991-06-06
Also published as: JPH0439347Y2

Description

[Brief explanation of the drawing]

第１図および第２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図は上枠の
挿口部と下枠の上枠受け口部との詳細説明図、第
４図は上枠と下枠の開離状態側断面図、第５図は
他の実施例の側断面図、第６図は従来の排水桝の
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……挿口部、９４Ａ
……上段面、９５Ａ……側壁面、９６Ａ……下縁
面、１０Ａ……下枠、１２Ａ……上枠受け口、１
４Ａ……底段面、１５Ａ……側壁面、１６Ａ……
上縁面。 Figures 1 and 2 show an embodiment of the present invention, in which Figure 1 is a sectional side 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 insertion part of the upper frame and the upper frame receptacle of the lower frame, FIG. 4 is a side sectional view of the upper frame and the lower frame in an open state, FIG. 5 is a side cross-sectional view of another embodiment, and FIG. 6 is a side view of a conventional drainage basin with an upper part cut away. In the diagram, 1... drainage basin, 7A... inspection pipe, 8A...
...Lid, 9A...Top frame, 91A...Socket, 94A
... Upper stage surface, 95A ... Side wall surface, 96A ... Lower edge surface, 10A ... Lower frame, 12A ... Upper frame socket, 1
4A...Bottom surface, 15A...Side wall surface, 16A...
Upper edge surface.

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 bottom step surface of the upper frame receptacle of the lower frame, and the upper frame of the lower frame The upper edge surface or bottom edge surface of the socket is inclined at a predetermined angle θ with respect to the axis, and the upper edge surface or lower edge surface of the socket of the upper frame is aligned with the upper edge surface or bottom surface of the upper frame socket of the lower frame. It is tilted with respect to the axis at the same angle θ as the inclination angle θ of the step surface, and the angle α between the bottom step surface and the side wall surface is 90° at the upper frame socket of the lower frame.
A structure of an upper end opening of a drainage basin characterized in that the angle between the upper stage surface and the side wall surface is equal to α at the insertion portion of the upper frame. 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.