JPS5925422U

JPS5925422U - Water meter impeller support structure

Info

Publication number: JPS5925422U
Application number: JP12097482U
Authority: JP
Inventors: 元小野田; 荒川　邦男
Original assignee: 株式会社金門製作所
Priority date: 1982-08-11
Filing date: 1982-08-11
Publication date: 1984-02-17

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 the drawing]

第１図は従来構造の水道メータの表示部の平面図、第２
図は従来構造の水道メータの縦断面、第３図は第２図の
■−■線より見た断面図、第４図は本考案の水道メータ
の縦断面図、第５図は第４図の■−Ｖ線より見た断面図
、第６図は第５図に示す有底筒体及び蓋体をＶＩ−ＶＩ
線より見た部分破断分解図、第７図は第６図の■−■線
に沿う部分破断図、第８図は第６図の■−■線より見た
有底筒体の平面図、第９図は第６図のＩＸ−ＩＸ線より
見た蓋体の背面図、第１０図は羽根車とノズルとの対応
関係の説明図、第１１図は本考案の水道メータの器差の
流量に応じた変化を従来構造のメータと比較して示す器
差曲線のグラフ、第１２面は第４図に示す水道メータの
ピボット軸受部分の拡大図、第１３図は第１２図の下面
図、第１４図は第１２図のピボット軸体の縦断面図であ
る。・３０・・・ケース本体、３４・・・有底筒体、３
８・・・蓋体、４３・・・ピボット軸体、８０・・・ヘ
ッド、８３・・・座ぐり溝。Figure 1 is a plan view of the display section of a water meter with a conventional structure;
The figure shows a longitudinal section of a water meter with a conventional structure, Fig. 3 is a sectional view taken from the line ■-■ in Fig. 2, Fig. 4 is a longitudinal sectional view of the water meter of the present invention, and Fig. 5 6 is a cross-sectional view of the bottomed cylinder and lid body shown in FIG.
7 is a partially broken exploded view taken along the line ■-■ in FIG. 6; FIG. 8 is a plan view of the bottomed cylinder taken along the line ■-■ in FIG. 6; Fig. 9 is a rear view of the lid seen from line IX-IX in Fig. 6, Fig. 10 is an explanatory diagram of the correspondence between the impeller and the nozzle, and Fig. 11 is an illustration of the instrumental error of the water meter of the present invention. A graph of the instrumental error curve showing changes according to flow rate in comparison with a meter with a conventional structure.The 12th page is an enlarged view of the pivot bearing part of the water meter shown in Figure 4.Figure 13 is a bottom view of the water meter shown in Figure 12. , FIG. 14 is a longitudinal sectional view of the pivot shaft of FIG. 12.・30... Case body, 34... Bottomed cylinder, 3
8... Lid body, 43... Pivot shaft body, 80... Head, 83... Counterbore groove.

Claims

[Scope of utility model registration request]

(1) In a water meter equipped with a case body having an inlet, an outlet, and a metering chamber housing an impeller therein, the meter is closely fitted to the peripheral wall of the metering chamber, and the inlet and A bottomed cylindrical body integrally molded of synthetic resin has a side wall portion and a bottom portion in which an outflow port and a corresponding inflow nozzle and outflow nozzle are formed, respectively, and a blade is provided at the center of the bottom of the bottomed cylindrical body. A water meter impeller support structure in which a pivot shaft body that rotatably supports a vehicle is removably fitted and supported.

(2) The pivot shaft body includes a tip bearing portion, a pin-shaped shaft portion, and a support portion that is fitted and supported at the center of the bottom of the bottomed cylinder, and the support portion has an enlarged head formed therein. The pivot shaft body is inserted from the outside of the bottom into a shaft hole formed through the bottom center of the bottomed cylinder body, and the head is fitted into a countersunk groove formed around the shaft hole. The support structure according to claim 1 of the utility model registration claim.

(3) The support structure according to claim 2, wherein the head and the corresponding counterbore groove have a rectangular shape.