JPH0446276U - - Google Patents
Info
- Publication number
- JPH0446276U JPH0446276U JP8926790U JP8926790U JPH0446276U JP H0446276 U JPH0446276 U JP H0446276U JP 8926790 U JP8926790 U JP 8926790U JP 8926790 U JP8926790 U JP 8926790U JP H0446276 U JPH0446276 U JP H0446276U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- main plunger
- valve body
- liquid
- communication hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
Description
第1図及び第2図は本考案の定量弁の一実施例
を示す断面図にして第1図は待機状態を又第2図
は液体吐出完了状態を夫々示す図、第3図A,B
,Cは本考案の定量弁における主プランジヤと補
助プランジヤとの作動状態を示す拡大断面図、第
4図は本考案の定量弁を用いた液体定量供給シス
テムを示す系統図、第5図及び第6図は本考案の
定量弁の他の各実施例を示す断面図、第7図及び
第8図は従来の定量弁を示す断面図にして第7図
は待機状態を又第8図は液体吐出完了状態を夫々
示す図である。
図中1は弁本体、2は上部弁本体、3は中部弁
本体、4は下部弁本体、5は空気シリンダ、6は
空気ピストン、8は主プランジヤ、9は連絡穴、
9aは端面開口部、9bは周面開口部、11はス
プリング、13は空気出入口、15は液体注入口
、16は液体シリンダ、19は補助プランジヤ、
19aは凸部、22はスプリング、23は液体導
出通路、24は液体吐出通路、26は逆止弁、2
7はボール、32はニードル、35は調整ノブ、
52は調整ネジ、53はナツトを示す。
1 and 2 are cross-sectional views showing an embodiment of the metering valve of the present invention. FIG. 1 shows the standby state, FIG. 2 shows the liquid discharge completed state, and FIGS. 3 A and B.
, C is an enlarged sectional view showing the operating state of the main plunger and the auxiliary plunger in the metering valve of the present invention, FIG. 4 is a system diagram showing a liquid metering supply system using the metering valve of the present invention, and FIGS. Figure 6 is a sectional view showing other embodiments of the metering valve of the present invention, Figures 7 and 8 are sectional views showing conventional metering valves, Figure 7 is a standby state, and Figure 8 is a liquid metering valve. It is a figure which shows the completion state of discharge, respectively. In the figure, 1 is the valve body, 2 is the upper valve body, 3 is the middle valve body, 4 is the lower valve body, 5 is the air cylinder, 6 is the air piston, 8 is the main plunger, 9 is the communication hole,
9a is an end opening, 9b is a peripheral opening, 11 is a spring, 13 is an air inlet/outlet, 15 is a liquid inlet, 16 is a liquid cylinder, 19 is an auxiliary plunger,
19a is a convex portion, 22 is a spring, 23 is a liquid outlet passage, 24 is a liquid discharge passage, 26 is a check valve, 2
7 is a ball, 32 is a needle, 35 is an adjustment knob,
52 is an adjustment screw, and 53 is a nut.
Claims (1)
ンダを形成し、該空気シリンダ内に、スプリング
の付勢力と空気圧とにより往復動可能に空気ピス
トンを配設し、一端面に開口し且つ該一端面より
離れた周面に開口した連絡穴を有する主プランジ
ヤの他端を前記空気ピストンに契合し、該主プラ
ンジヤより小径で且つ主プランジヤの連絡穴の端
面開口部と液密に接合し得るよう凸部を一端面に
形成した補助プランジヤを、前記弁本体内に主プ
ランジヤの連絡穴の端面開口部と一端面凸部とが
同軸状態で対向し且つスプリングの付勢力に抗し
摺動可能に配設し、前記弁本体に主プランジヤの
連絡穴の周面開口部と常に連通する液体注入口を
設け、前記主プランジヤと補助プランジヤとの対
向部に主プランジヤの連絡穴を介し前記液体注入
口を連通し且つ補助プランジヤを配設する液体シ
リンダを弁本体内に形成し、更に該液体シリンダ
と連通する液体吐出通路を弁本体に設けてなるこ
とを特徴とする定量弁。 2 請求項1に記載の定量弁において、前記液体
シリンダと前記液体吐出通路との間に逆止弁を配
設してなることを特徴とする定量弁。 3 請求項1又は2に記載の定量弁において、前
記主プランジヤの移動量を調整する調節具を弁本
体に備えたことを特徴とする定量弁。[Claims for Utility Model Registration] 1. An air cylinder communicating with an air inlet and outlet is formed within the valve body, and an air piston is disposed within the air cylinder so as to be movable reciprocally by the biasing force of a spring and air pressure, The other end of a main plunger having a communication hole opened in one end surface and opened in a circumferential surface remote from the one end surface is engaged with the air piston, and the end surface opening of the communication hole of the main plunger has a diameter smaller than that of the main plunger. An auxiliary plunger having a protrusion formed on one end surface so as to be fluid-tightly joined to the main plunger is disposed within the valve body, and the end surface opening of the communication hole of the main plunger and the protrusion on the one end face coaxially oppose each other, and the spring is attached to the auxiliary plunger. A liquid inlet is provided in the valve body so as to be slidable against force, and is provided in the main plunger with a liquid inlet that constantly communicates with the peripheral opening of the communication hole of the main plunger, and a liquid inlet of the main plunger is provided in the opposing portion of the main plunger and the auxiliary plunger. A liquid cylinder communicating with the liquid inlet via a communication hole and having an auxiliary plunger provided therein is formed in the valve body, and a liquid discharge passage communicating with the liquid cylinder is further provided in the valve body. Metering valve. 2. The metering valve according to claim 1, further comprising a check valve disposed between the liquid cylinder and the liquid discharge passage. 3. The metering valve according to claim 1 or 2, characterized in that the valve body is provided with an adjustment tool for adjusting the amount of movement of the main plunger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8926790U JPH0714712Y2 (en) | 1990-08-27 | 1990-08-27 | Metering valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8926790U JPH0714712Y2 (en) | 1990-08-27 | 1990-08-27 | Metering valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0446276U true JPH0446276U (en) | 1992-04-20 |
JPH0714712Y2 JPH0714712Y2 (en) | 1995-04-10 |
Family
ID=31823135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8926790U Expired - Lifetime JPH0714712Y2 (en) | 1990-08-27 | 1990-08-27 | Metering valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0714712Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014141979A (en) * | 2013-01-22 | 2014-08-07 | Kgk:Kk | Quantitative valve |
-
1990
- 1990-08-27 JP JP8926790U patent/JPH0714712Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014141979A (en) * | 2013-01-22 | 2014-08-07 | Kgk:Kk | Quantitative valve |
Also Published As
Publication number | Publication date |
---|---|
JPH0714712Y2 (en) | 1995-04-10 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |