JPH0213175U

JPH0213175U -

Info

Publication number: JPH0213175U
Application number: JP8801988U
Authority: JP
Priority date: 1988-07-04
Filing date: 1988-07-04
Publication date: 1990-01-26

Description

[Brief explanation of drawings]

第１図ないし第４図はこの考案の実施例に関し
、第１図は往復動ポンプの構造を示す一部断面図
、第２図は第１図の筒状サツクを開口側から見た
斜視図、第３図及び第４図は第２図の内方張出し
部の変形例を備える筒状サツクを開口側から見た
斜視図、第５図及び第６図は従来技術に関し、第
５図は往復動ポンプの構造を示す一部断面図、第
６図は通孔の斜視図である。２２…ピストンロツド（往復動部材）、３２…
ボルト（先端部）、５４…吸入口、５６…ポンプ
室、８０…吸入弁、８２…弁座、８４…筒状サツ
ク、８８，８８ｂ，８８ｃ…内方張出し部、９２
…弁体、９４…圧縮コイルばね。 Figures 1 to 4 relate to an embodiment of this invention, with Figure 1 being a partial sectional view showing the structure of a reciprocating pump, and Figure 2 being a perspective view of the cylindrical sac in Figure 1 viewed from the opening side. , FIGS. 3 and 4 are perspective views of a cylindrical sac provided with a modified example of the inwardly extending portion of FIG. 2, viewed from the opening side, FIGS. 5 and 6 relate to the prior art, and FIG. FIG. 6 is a partial cross-sectional view showing the structure of the reciprocating pump, and FIG. 6 is a perspective view of the through hole. 22... Piston rod (reciprocating member), 32...
Bolt (tip), 54... Suction port, 56... Pump chamber, 80... Suction valve, 82... Valve seat, 84... Cylindrical sac, 88, 88b, 88c... Inward projecting portion, 92
...Valve body, 94...Compression coil spring.

補正昭６３．７．２９図面の簡単な説明を次のように補正する。明細書中、第１７頁第３行の「通孔」を次のと
おり補正する。「サツク」。Amendment July 29, 1981 The brief description of the drawing is amended as follows. In the specification, "through hole" on page 17, line 3 is amended as follows. "Satsuku".

Claims

[Claims for Utility Model Registration] (1) The suction valve 80 has a valve seat 82 disposed on the tip side of the pump chamber 56, and a valve seat 82 disposed on the tip side of the pump chamber 56, and
A cylindrical sac 84 is fixed to the cylindrical sac 84, and the cylindrical sac 84 extends inward in the radial direction to allow the reciprocating member 22 to enter the cylindrical sac 84 in the axial direction. Inward projecting portions 88, 88b, and 88c are formed at the end of the cylindrical sac 84 farther from the valve seat 82, and are disposed within the cylindrical sac 84 so as to be able to sit on the valve seat 82. The valve body 92 and the inwardly extending portions 88, 88b, 88
c and the valve body 92 and the valve body 92
a compression coil spring 94 that presses the valve seat 82 against the valve seat 82, and the reciprocating member 22 has a tip end 32 inserted into the cylindrical sac 84 at the top dead center. . (2) The reciprocating pump according to claim 1, wherein the inward projecting portions 88, 88b, and 88c form an axial rectifying portion.