JPH0281690U

JPH0281690U -

Info

Publication number: JPH0281690U
Application number: JP15821488U
Authority: JP
Priority date: 1988-12-05
Filing date: 1988-12-05
Publication date: 1990-06-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の平面図、第２図と
第３図とはそれぞれスカムを呑込まないときと呑
込むときとを示す第１図中Ａ―Ａ断面図、第４図
は堰板の他の実施例を示す断面図、第５図は下降
限を規制する他の実施例を示す第２図中Ｃ―Ｃ断
面図、第６図と第７図とは浮き子の他の実施例を
示す断面図、第８図は従来例を示す側断面図であ
つてスカム管が呑込み位置にあるときを示す図、
第９図は第８図中Ｂ―Ｂ矢視図であつてスカム管
が通常位置にあるときを示す図である。１……沈殿池、２……側壁、４……スカム、５
……スカム管、６……呑み口、１０……堰板、１
１……上面、１５……止水材、１６……支持材、
１７……間隙、１８……長穴、２０……筐体、２
１……下面、２２……排水孔、２３……オーバー
フロー孔、２５……水槽、２６……電動弁、２８
……フレキシブルホース、３０，３１……浮き子
、３２……跨設材、３３……ピン。 Fig. 1 is a plan view of an embodiment of the present invention, Figs. 2 and 3 are sectional views taken along line AA in Fig. 1, showing when scum is not swallowed and when scum is swallowed, respectively. 5 is a sectional view showing another embodiment of the weir plate, FIG. 5 is a sectional view taken along line CC in FIG. 2 showing another embodiment regulating the lower limit, and FIGS. A cross-sectional view showing another embodiment; FIG. 8 is a side cross-sectional view showing a conventional example when the scum pipe is in the swallowing position;
FIG. 9 is a view taken along the line B--B in FIG. 8, showing the scum tube in its normal position. 1...Sedimentation basin, 2...Side wall, 4...Scum, 5
... Scum pipe, 6 ... Spout, 10 ... Weir plate, 1
1...Top surface, 15...Water stop material, 16...Supporting material,
17... Gap, 18... Long hole, 20... Housing, 2
1...Bottom surface, 22...Drain hole, 23...Overflow hole, 25...Water tank, 26...Electric valve, 28
...Flexible hose, 30, 31... Float, 32... Straddling material, 33... Pin.

Claims

[Scope of Claim for Utility Model Registration] (1) A weir plate that spans almost the entire width of the sedimentation basin is floating on the upstream side of the scum pipe of the sedimentation basin, and a water stop is created between the weir plate and the lower side of the mouth of the scum pipe. A casing is installed on the dam board with a gap between it and the top surface of the dam board using supporting materials, and a drainage hole is provided in the lower part of the casing to set a downward limit on the elevation of the dam board. A float for regulation is floated in a sedimentation tank, so that when water is injected into the housing, the gap reaches the water surface of the sedimentation tank, and when the inside of the housing is drained, the top surface of the housing plate rises above the water surface of the sedimentation tank. Formed scum removal device. (2) The scum removing device according to claim 1, wherein the downstream end of the weir plate is attached to the lower side of the mouth of the scum pipe so that it can be raised and lowered and is waterproof. (3) The float is formed by a first float floating on both ends of the upstream side of the weir plate and a second float floating on the downstream side of the scum pipe, and 3. The scum removal device according to claim 1, wherein a straddling material is hung between the second floats, and the weir plate is attached to the straddling material so as to restrict the elevation and descent of the weir plate at a lower limit. (4) A claim that the regulation at the lower limit of the weir plate is performed by drilling a vertically elongated hole in the supporting material and protruding a pin that fits loosely into the elongated hole from the straddling material. Item 3. Scum removal device according to item 3. (5) The scum removal device according to claim 1, 2, 3 or 4, wherein the weir plate is formed of a box and water inside the box.