JPS5932922U

JPS5932922U - Single box water meter

Info

Publication number: JPS5932922U
Application number: JP12869582U
Authority: JP
Inventors: 元小野田; 高畑　光雄
Original assignee: 株式会社金門製作所
Priority date: 1982-08-26
Filing date: 1982-08-26
Publication date: 1984-02-29
Also published as: JPS6014169Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は丸形ノズルと矩形ノズルとの回転モーメントを
比較する模式図、第２図は丸形ノズルと矩形ノズルとを
用いたときの流量と器差との関係を示すグラフ、第３図
は本考案の一実施例を示す水道メータの縦断面図、第４
図は同じく第３図■−■線に沿う横断面図、第５図は同
じく第４図■−Ｖ線に沿う断面図である。１・・・ケース本体、１ａ・・・ケース本体の内周面、
２・・・計量室、３・・・流入口体、４・・・流出口体
、７・・・計量室の周壁、８・・・流入ノズル、９・・
・流出ノズル、１０・・・遮へい体、１２・・・羽根車
。Figure 1 is a schematic diagram comparing the rotation moment between a round nozzle and a rectangular nozzle, Figure 2 is a graph showing the relationship between flow rate and instrumental error when using a round nozzle and a rectangular nozzle, and Figure 3 4 is a longitudinal sectional view of a water meter showing an embodiment of the present invention.
The figure is a cross-sectional view taken along the line ■--■ in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line ■--V in FIG. 4. 1... Case body, 1a... Inner peripheral surface of the case body,
2... Measuring chamber, 3... Inlet body, 4... Outlet body, 7... Peripheral wall of measuring chamber, 8... Inlet nozzle, 9...
- Outflow nozzle, 10...shielding body, 12... impeller.

Claims

[Scope of utility model registration request]

In a water meter equipped with a case body consisting of an inlet body, an outlet body, and a metering chamber that accommodates an impeller, the case body is integrally molded from hard synthetic resin or metal, and the peripheral wall of the metering chamber is attached to the case body. protrudes inward from the inner circumferential surface of the metering chamber, is rectangular and slopes in the tangential direction of the metering chamber at a position corresponding to the inlet port body and the outlet body of the peripheral wall of the metering chamber, and is open to the upper end surface of the peripheral wall. 1. A single-box double water meter, characterized in that the inflow nozzle and outflow nozzle are each formed with a cutout, and a shield is provided to close the open end of each nozzle.