JPH02143574U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る逆止弁の一実施例を示す
断面図、第２図は従来の逆止弁を示す断面図であ
る。 １……逆止弁、２……バルブ本体、３……キヤ
ツプ、４……弁室、５……弁体、６……ステム、
７……インレツトポート、８……戻しばね、９…
…弁座、１０……嵌入孔、１１，１２……シート
部、１３……ヘツド部、１４……リテーナ。 FIG. 1 is a sectional view showing an embodiment of a check valve according to the present invention, and FIG. 2 is a sectional view showing a conventional check valve. 1... Check valve, 2... Valve body, 3... Cap, 4... Valve chamber, 5... Valve body, 6... Stem,
7...Inlet port, 8...Return spring, 9...
...valve seat, 10...fitting hole, 11, 12...seat section, 13...head section, 14...retainer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁室を有するバルブ本体と、該バルブ本体の一
端開口を閉塞するキヤツプと、リテーナを有する
ステムに支持されかつ弾性材料で一体成形された
弁体とをそれぞれ備え、前記バルブ本体の弁室に
前記弁体を収納すると共に、この弁体を、前記キ
ヤツプとリテーナとの間に配設した戻しばねの付
勢力にて前記バルブ本体の弁座に当接させ、前記
バルブ本体のインレツトポートから流出する流体
の圧力によつてのみ前記弁体を開放するようにし
た逆止弁において、前記弁体の外周縁に位置する
両側面に前記ステムの軸方向に沿つて突出させた
シート部をそれぞれ一体的に形成し、前記弁体を
ステムに組付けたとき、シート部のいずれか一方
が前記バルブ本体の弁座に当接するように構成し
たことを特徴とする逆止弁。 Each valve body includes a valve body having a valve chamber, a cap that closes an opening at one end of the valve body, and a valve body integrally formed of an elastic material and supported by a stem having a retainer. The valve body is housed, and the valve body is brought into contact with the valve seat of the valve body by the biasing force of a return spring disposed between the cap and the retainer, so that the valve body flows out from the inlet port of the valve body. In the check valve, the valve body is configured to open only by the pressure of the fluid, wherein a seat portion protruding along the axial direction of the stem is integrally formed on both side surfaces located at the outer peripheral edge of the valve body. 1. A check valve, characterized in that the check valve is configured such that when the valve body is assembled to a stem, either one of the seat portions comes into contact with a valve seat of the valve body.