JPS59117890U

JPS59117890U - pump piston

Info

Publication number: JPS59117890U
Application number: JP1236583U
Authority: JP
Inventors: 充田口; 塩田　清治
Original assignee: 昭和電工株式会社
Priority date: 1983-01-31
Filing date: 1983-01-31
Publication date: 1984-08-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図および第２図は従来の気体圧によって液体を脈動
なく吐出させるポンプを示すもので第１図は縦断面図、
第２図はピストン部の縦断面図、第３図ないし第６図は
、本考案に係るピストンの一実施例を示すもので、第３
図は、各部品の側面図、第４図ａはシール部材の一部破
断した斜視図、第４図すは第４図ａのＩＶ−ＩＶ線矢視
断面図、第５図は、ピストンの縦断面図、第６図は第５
図の■−■線矢視平面図、第７図ａ、　　ｂはシール部
材の他の例を示す横断面図である。１・・・・・・シリンダ一部、３・・・・・・着脱可能
な上蓋部、４・・・・・・下蓋部、３ａ、　　４ａ・・
・・・・上下導管、５・・・・・・円筒部、１１・・・
・・・大円板部、ｌｌａ・・・・・・大円板部上面、ｌ
ｌｂ・・・・・・大円板部下面、１２・・・・・・上手
円板部、１３・・・・・・下手円板部、１２ａ、１３ａ
・・・・・・上下小円板部外周、１２ｂ、１３ｂ・・・
・・・上下小円板部の大円板部と反対側の面、１４・・
・・・・センタ一部材、１５・・・・・・フッ素系樹脂
成形体（成形体）、１５ａ・・・・・・上部開口部、１
５ｂ・・・・・・内側面、１５Ｃ・・・・・・外側面、
１６・・・・・・スプリング、１７・・・・・・シール
部材、１７ａ・・・・・・上シール部材、１７ｂ・・・
・・・下シール部材、１８・・・・・・上押え薄板、１
９・・・・・・上押え薄板、２０・・・・・・ビス、２
１・・・・・・アイボルト、２２・・・・・・アイボル
トＬ　Ａ−−−−−−ピストン。１６第７図９第５図Figures 1 and 2 show a conventional pump that discharges liquid without pulsation using gas pressure. Figure 1 is a vertical cross-sectional view;
FIG. 2 is a longitudinal sectional view of the piston part, and FIGS. 3 to 6 show an embodiment of the piston according to the present invention.
The figures are a side view of each part, FIG. 4a is a partially broken perspective view of the seal member, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 4a, and FIG. Longitudinal cross-sectional view, Figure 6 is the 5th
7A and 7B are cross-sectional views showing other examples of the sealing member. 1...Part of the cylinder, 3...Removable upper cover, 4...Lower cover, 3a, 4a...
...Upper and lower conduit, 5...Cylindrical part, 11...
...Large disk part, lla...Top surface of large disk part, l
lb... lower surface of large disc, 12... upper disc part, 13... lower disc part, 12a, 13a
・・・・・・Outer periphery of upper and lower small disk parts, 12b, 13b...
・・・Surface of the upper and lower small disk parts opposite to the large disk part, 14...
... Center member, 15 ... Fluorine resin molded object (molded object), 15a ... Upper opening, 1
5b...Inner surface, 15C...Outer surface,
16...Spring, 17...Seal member, 17a...Upper seal member, 17b...
... Lower seal member, 18 ... Upper presser thin plate, 1
9... Upper presser thin plate, 20... Screw, 2
1...Eye bolt, 22...Eye bolt L A-----Piston. 16 Figure 7 9 Figure 5

Claims

[Scope of utility model registration request]

In a pump piston, which is provided inside a part of a covered cylindrical cylinder having conduits attached to the upper and lower lid parts, and whose outer peripheral part is in airtight contact with the inner peripheral surface of the cylinder part and slides in the vertical direction, A shape center two member in which upper and lower small disc parts each having a diameter smaller than the diameter of the large disc part by a predetermined dimension are arranged concentrically on the upper and lower surfaces of a large disc part having a predetermined diameter, and a cross section facing upward. A spring is provided to widen the opening of the U-shaped circular synthetic resin molded body, and the inner peripheral surface is in contact with the outer peripheral surface of the upper and lower small circular plates of the center member, respectively. The opening has upper and lower sealing members attached with the opening facing in the opposite direction to the large disk portion, and upper and lower presser thin plates attached to the upper and lower surfaces of the center member to prevent the sealing members from falling off. A pump piston featuring