JPH01168070U

JPH01168070U -

Info

Publication number: JPH01168070U
Application number: JP6458688U
Authority: JP
Priority date: 1988-05-17
Filing date: 1988-05-17
Publication date: 1989-11-27

Description

[Brief explanation of drawings]

第１図はこの考案の実施例の断面図、第２図は
弁体の正面図、第３図は実施例の要部拡大断面図
、第４図は弁体の要部拡大断面図、第５図イ，ロ
は従来例の説明断面図である。 Figure 1 is a sectional view of an embodiment of this invention, Figure 2 is a front view of the valve body, Figure 3 is an enlarged sectional view of the main part of the embodiment, Figure 4 is an enlarged sectional view of the main part of the valve body, and Figure 4 is an enlarged sectional view of the main part of the valve body. Figures 5A and 5B are explanatory sectional views of the conventional example.

Claims

[Scope of utility model registration request]

A short tubular upstream valve box member having substantially the same inner diameter as the upstream pipe, connectable to the upstream valve box member via a flange, the upstream side being enlarged in diameter, and the downstream side being the downstream side. It consists of a downstream valve box member having the same inner diameter as the pipe, and a valve body disposed at the flange joint of the upstream and downstream valve box members so as to open only on the downstream side. A support shaft is formed integrally with the flange end surface of the valve box member, which has a disk shape and extends tangentially to the outer periphery, and the support shaft is loosely received on the flange end surface of the upstream valve box member. A groove is formed in which the groove can be closed by the flange end surface of the downstream valve box member, and the valve body with the support shaft received in the groove can swing only in the direction of the downstream valve box member. 1. A check valve characterized in that the center of gravity of the valve body is offset to the downstream side when the valve body is in a suspended state.