JPS6259370U - - Google Patents

Description

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

第１図は本考案の一実施例を示すバルブの一部
断面側面図、第２図は同要部の拡大断面図、第３
図は要部の正面図、第４図は止め具の嵌着途中を
示す簡略正面図、第５図は同嵌着状態を示す簡略
正面図、第６図と第７図はシール部に作用する力
の状態を示す夫々要部断面図と簡略正面図、第８
図は他の実施例を示す要部断面図である。 ３…弁体（取付部）、５…シートリング（密封
部材）、６…弁座（取付部）、７…シール部、１
１…第１の段部、１４…奥壁、１５…係合突条、
１６…係合溝、１７…第２の段部、１８…止め具
、１９…係合溝、２０…係合突条、２２…切断部
、Ｖ…バルブ。 Fig. 1 is a partially sectional side view of a valve showing one embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is an enlarged sectional view of the same main part.
The figure is a front view of the main parts, Figure 4 is a simplified front view showing the stopper in the middle of fitting, Figure 5 is a simplified front view showing the same fitting state, and Figures 6 and 7 act on the seal part. A cross-sectional view of main parts and a simplified front view showing the state of the force applied, No. 8
The figure is a sectional view of a main part showing another embodiment. 3... Valve body (mounting part), 5... Seat ring (sealing member), 6... Valve seat (mounting part), 7... Seal part, 1
1... First step portion, 14... Back wall, 15... Engagement protrusion,
DESCRIPTION OF SYMBOLS 16... Engagement groove, 17... Second step part, 18... Stopper, 19... Engagement groove, 20... Engagement protrusion, 22... Cutting part, V... Valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 閉じた円形リング状の密封部材５が装着される
バルブＶのシール部７において、該密封部材５の
取付部３，６に、内周壁１２が該密封部材５の外
周に当接状とされて、該密封部材５が内嵌される
第１の段部１１を設けると共に、該密封部材５の
内周側に対応する該第１の段部１１の奥壁１４に
、周方向の係合突条１５及び係合溝１６を有する
第２の段部１７を設け、該第２の段部１７に、上
記係合突条１５及び係合溝１６に嵌合可能な係合
溝１９及び係合突条２０を有するリング状止め具
１８を嵌着して、該止め具１８により上記密封部
材５を内周側から外周側へ押圧すべく構成し、さ
らに、該止め具１８の一部に切断部２２を設けて
弾性力により該止め具１８を縮径可能と成し、該
止め具１８を上記第２の段部１７に対して着脱自
在としたことを特徴とするバルブのシール部構造
体。 In the sealing portion 7 of the valve V to which the closed circular ring-shaped sealing member 5 is attached, the inner circumferential wall 12 is in contact with the outer periphery of the sealing member 5 at the mounting portions 3 and 6 of the sealing member 5. , a first step 11 into which the sealing member 5 is fitted is provided, and a circumferential engagement protrusion is provided on the inner wall 14 of the first step 11 corresponding to the inner circumferential side of the sealing member 5. A second step 17 having a strip 15 and an engagement groove 16 is provided, and the second step 17 has an engagement groove 19 and an engagement groove that can fit into the engagement protrusion 15 and the engagement groove 16. A ring-shaped stopper 18 having a protrusion 20 is fitted, and the stopper 18 is configured to press the sealing member 5 from the inner circumference side to the outer circumference side, and further, the stopper 18 is cut into a part. A valve seal structure, characterized in that a portion 22 is provided so that the diameter of the stopper 18 can be reduced by elastic force, and the stopper 18 is detachable from the second step portion 17. .