JPH01137863U

JPH01137863U -

Info

Publication number: JPH01137863U
Application number: JP3541088U
Authority: JP
Priority date: 1988-03-17
Filing date: 1988-03-17
Publication date: 1989-09-20

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す要部断面図
、第２図は同実施例に使用する弁機構組立体の分
解断面図、第３図は同実施例に使用する弁体保持
板の平面図、第４図は同実施例に使用する弁体の
平面図、第５図は同実施例に使用する弁体規制部
材の平面図、第６図は同実施例における正圧時の
作動状態を示す断面図、第７図は同実施例におけ
る負圧時の作動状態を示す断面図、第８図は同実
施例の変形例を示す断面図、第９図は同実施例の
他の変形例を示す断面図、第１０図は従来例の断
面図である。１１…キヤツプ、１２…キヤツプ本体、１２ａ
…流体流路、１２ｂ…環状突部、１３…弁体、１
４…弁体保持板、１５…弁体支持板、１６…第１
コイルばね、１７…第２コイルばね、２４…弁体
規制部材、２４ａ…突条、２４ｂ…規制部、３１
…円筒部、３１ａ…内側凹溝、３１ｂ…外側凹溝
、３２…内側アーム部、３３…内周リツプ部、３
４…外側アーム部、３５…外側リツプ部、４１…
上部平板部、４１ａ…シール部、４１ｂ…軸部、
４２…下部平板部、４２ａ…凸条、４３…連結部
、４４…流体流路孔。 Fig. 1 is a cross-sectional view of the main parts showing an embodiment of this invention, Fig. 2 is an exploded sectional view of a valve mechanism assembly used in the same embodiment, and Fig. 3 is a valve body holding plate used in the same embodiment. FIG. 4 is a plan view of the valve body used in the same example, FIG. 5 is a plan view of the valve body regulating member used in the same example, and FIG. 6 is a plan view of the valve body regulating member used in the same example at the time of positive pressure. 7 is a sectional view showing the operating state of the same embodiment under negative pressure, FIG. 8 is a sectional view showing a modification of the same embodiment, and FIG. 9 is a sectional view showing another example of the same embodiment. FIG. 10 is a sectional view of a conventional example. 11...Cap, 12...Cap body, 12a
...Fluid channel, 12b...Annular protrusion, 13...Valve body, 1
4... Valve body holding plate, 15... Valve body support plate, 16... First
Coil spring, 17... Second coil spring, 24... Valve body regulation member, 24a... Projection, 24b... Regulation part, 31
...Cylindrical part, 31a...Inner groove, 31b...Outer groove, 32...Inner arm part, 33...Inner peripheral lip part, 3
4...Outer arm part, 35...Outer lip part, 41...
Upper flat plate part, 41a... seal part, 41b... shaft part,
42...Lower flat plate part, 42a...Convex strip, 43...Connection part, 44...Fluid channel hole.

Claims

[Scope of Claim for Utility Model Registration] A cap with a valve comprising the following (a) to (g). (a) a cap body that is attached to the opening of the container and includes a fluid flow path and an annular protrusion that projects inward from the inner periphery of the fluid flow path; (b) a cylindrical portion that is located near the middle in the radial direction; ,
an inner arm portion extending radially inward from the upper portion of the cylindrical portion in a flange shape and having an inner peripheral lip portion projecting upward on the inner periphery thereof; and an outer arm portion having an outer circumferential lip portion projecting downward on its outer circumferential edge, an annular inner groove provided at the upper portion of the inner circumferential surface of the cylindrical portion, and an annular inner groove provided at the lower portion of the outer circumferential surface of the cylindrical portion. an outer concave groove, the inner circumferential lip portion being located inside the cap body annular protrusion, and the outer circumferential lip portion abutting against the upper surface of the cap body annular protrusion so that the inner circumferential lip portion is positioned inside the cap body fluid flow path. an annular valve body made of a rubber-like elastic material disposed in (c) an upper flat plate portion located on the center side, an annular lower flat plate portion located on the outer peripheral side, and a portion extending downward from the outer peripheral edge of the upper flat plate portion; a connecting portion extending to connect the upper and lower flat plate portions; a convex strip provided on the inner peripheral edge of the lower flat plate portion and fitting into the outer groove of the cylindrical valve body portion; and a connecting portion on the lower surface of the upper flat plate. a seal portion provided to correspond to the circumferential lip portion of the valve body; and a fluid flow passage hole provided in the upper flat plate portion or the connecting portion between the protrusion and the seal portion, and the cap body fluid flow (d) a first spring means disposed in the cap body fluid flow path above the valve body retaining plate and biasing the valve body retaining plate downward; (e) an annular valve body support plate disposed in the cap body fluid flow path below the valve body circumference lip and abutting near the lower surface of the valve body circumference lip; (f) below the valve body support plate; (g) a second spring means disposed in the cap body fluid flow path below the valve body and biasing the valve body support plate upward; (g) a second spring means disposed in the cap body fluid flow path below the valve body, a protrusion provided on the outer periphery to fit into the inner groove of the cylindrical portion of the valve body; and a protrusion provided on the outer periphery below the protrusion to press the inner peripheral surface side of the outer groove in the cylindrical portion of the valve body. A substantially cylindrical valve body regulating member comprising: a regulating portion;