JPH026858U

JPH026858U -

Info

Publication number: JPH026858U
Application number: JP8629588U
Authority: JP
Priority date: 1988-06-29
Filing date: 1988-06-29
Publication date: 1990-01-17

Description

[Brief explanation of drawings]

第１図は本考案の一実施例によるバタフライバ
ルブのシール機構の縦断面図、第２図はそのバツ
クアツプスプリングの正面図、第３図は第２図の
部分拡大図、第４図は本考案の他の実施例による
ピストンとシリンダ間のシール機構の縦断面図、
第５図はそのバツクアツプスプリングの正面図、
第６図は第５図の部分拡大図である。１ａ，６ａ……シール面、４，９……シール部
材、５，１０……バツクアツプスプリング、５ａ
，１０ａ……帯板部、５ｃ，１０ｃ……板バネ要
素。 Fig. 1 is a vertical sectional view of a sealing mechanism of a butterfly valve according to an embodiment of the present invention, Fig. 2 is a front view of its back-up spring, Fig. 3 is a partially enlarged view of Fig. A longitudinal sectional view of a sealing mechanism between a piston and a cylinder according to another embodiment of the invention,
Figure 5 is a front view of the back-up spring.
FIG. 6 is a partially enlarged view of FIG. 5. 1a, 6a... Seal surface, 4, 9... Seal member, 5, 10... Backup spring, 5a
, 10a... Band plate portion, 5c, 10c... Leaf spring element.

Claims

[Claims for Utility Model Registration] A sealing mechanism in which a ring-shaped sealing member is brought into contact with a sealing surface having a circular cross section, and this sealing member is resiliently biased against the sealing surface by a back-up spring. a sealing mechanism in which the back-up spring is comprised of a ring-shaped strip and leaf spring elements protruding from a plurality of locations on the circumference of the strip;