JPH0385016U

JPH0385016U -

Info

Publication number: JPH0385016U
Application number: JP14749689U
Authority: JP
Priority date: 1989-12-21
Filing date: 1989-12-21
Publication date: 1991-08-28
Anticipated expiration: 2004-12-21
Also published as: JPH0741457Y2

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例であるポンプ構造
を示す断面図、第２図はそのポンプ構造を備える
ハンデイ口腔衛生器の全体縦断面図、第３図はそ
の口腔衛生器で使用する駆動ユニツトの内部構成
図、第４図は第１図のＡ−Ａ線に沿つた横断面図
である。第５図は、従来のポンプ構造を示す断面
図である。２６……ピストン、４５……ポンプケース、４
６……第１のポンプケース、４６ａ……シリンダ
、４６ｂ……吐出口、４６ｃ……弁支持部、４７
……第２のポンプケース、４７ａ……弁座、４７
ｂ……吸入口、４８……逆止弁、４９……弁棒。 Fig. 1 is a sectional view showing a pump structure that is an embodiment of this invention, Fig. 2 is an overall vertical sectional view of a handy oral hygiene device equipped with the pump structure, and Fig. 3 is a drive used in the oral hygiene device. FIG. 4, which is an internal configuration diagram of the unit, is a cross-sectional view taken along line A--A in FIG. 1. FIG. 5 is a sectional view showing a conventional pump structure. 26...Piston, 45...Pump case, 4
6...First pump case, 46a...Cylinder, 46b...Discharge port, 46c...Valve support portion, 47
...Second pump case, 47a...Valve seat, 47
b...Suction port, 48...Check valve, 49...Valve stem.

Claims

[Claims for Utility Model Registration] 1. In a pump structure for an oral hygiene device that discharges liquid sucked into a cylinder from an inlet into a cylinder from a discharge port while opening and closing a check valve by reciprocating a piston, the discharge port is Located above the intake port,
Oral hygiene device pump structure. 2. In a pump structure for an oral hygiene device that reciprocates a piston to open and close a check valve while discharging liquid sucked into a cylinder from an inlet into a cylinder from a discharge port, the pump case is connected to the first pump case and the second pump. and a case, the first pump case is provided with the cylinder, the discharge port, and the valve support part, and the second pump case is provided with the valve seat of the check valve and the suction port. , Oral hygiene device pump structure. 3. In a pump structure for an oral hygiene device that reciprocates a piston to open and close a check valve while discharging liquid sucked into a cylinder from an inlet into a cylinder from a discharge port, the piston and the check valve operate in the same direction. ,
A pump structure for an oral hygiene device, wherein when the check valve does not return to the closed position due to the compression action of the piston, the piston pushes the valve stem and pushes the check valve toward the valve seat.