JPH0452539Y2 - - Google Patents
Info
- Publication number
- JPH0452539Y2 JPH0452539Y2 JP4151287U JP4151287U JPH0452539Y2 JP H0452539 Y2 JPH0452539 Y2 JP H0452539Y2 JP 4151287 U JP4151287 U JP 4151287U JP 4151287 U JP4151287 U JP 4151287U JP H0452539 Y2 JPH0452539 Y2 JP H0452539Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber tube
- truncated
- valve body
- pinch valve
- flow path
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 16
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は、圧力流体の給排がスムーズに行われ
確実に流路を開閉しうるピンチバルブに関する。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a pinch valve that can supply and discharge pressure fluid smoothly and reliably open and close a flow path.
(ロ) 従来の技術
圧力流体の給排をスムーズに行い、確実に流路
を開閉しようとして種々の形状のピンチバルブが
提案されている。(b) Prior Art Pinch valves of various shapes have been proposed in order to smoothly supply and discharge pressure fluid and reliably open and close flow paths.
例えば、第１図の縦断面図、第３図の第１図に
おけるＡ−Ａ線断面図で示されるような、圧力流
体給排孔１，１を有し、内面２が円筒状である弁
本体３内に内面４、外面５ともに円筒状であり、
その外面５の相対抗する部分６，６が適宜範囲に
亘つて截頭７，７状であるゴム管８が遊嵌され、
その際、ゴム管８の両端部９，９は弁本体３に密
閉状に固定され、弁本体３とゴム管８との間に給
排される圧力流体によるゴム管８の変形により流
路１０が開閉されるピンチバルブが提案されてい
る。 For example, a valve having pressurized fluid supply/discharge holes 1, 1 and having a cylindrical inner surface 2 as shown in the vertical sectional view in FIG. 1 and the sectional view taken along the line A-A in FIG. Inside the main body 3, both the inner surface 4 and the outer surface 5 are cylindrical,
A rubber tube 8 whose opposing portions 6, 6 of the outer surface 5 have truncated ends 7, 7 is loosely fitted over an appropriate range,
At this time, both ends 9, 9 of the rubber tube 8 are fixed to the valve body 3 in a sealed manner, and the flow path 10 is deformed by the pressure fluid supplied and discharged between the valve body 3 and the rubber tube 8. A pinch valve that opens and closes is proposed.
(ハ) 考案が解決しようとする問題点
第３図に示すような従来のピンチバルブでは、
ゴム管８内を流れている流体１３を閉止しようと
して、給排孔１４より圧縮空気を供給すると、ゴ
ム管８の截頭７，７状になつて相対抗している部
分６、６から中心部に向かつて圧縮され、第４−
２図に示すように、ゴム管８内面４は、全面に亘
つて、内面４同士で密接し、流体１３の流れは完
全に止められる。(c) Problems that the invention aims to solve In the conventional pinch valve as shown in Figure 3,
When compressed air is supplied from the supply/discharge hole 14 in an attempt to close off the fluid 13 flowing inside the rubber tube 8, the truncated ends 7, 7 of the rubber tube 8 and the opposing portions 6, 6, It is compressed towards the 4th part.
As shown in FIG. 2, the inner surfaces 4 of the rubber tube 8 are in close contact with each other over the entire surface, and the flow of the fluid 13 is completely stopped.
第４−２図のような状態では、ゴム管８の両端
１５，１５は弁本体３の内面２に狭い範囲で軽く
接触し、弁本体３の内面２とゴム管８の両端部１
５，１５とは、摩擦抵抗が極めて小さく、従つ
て、流路を閉止するための差圧（給排孔１４より
供給される圧縮空気と流体１３が有する圧力との
差をいう。通常２Kg／cm2程度に設定されている。）
が小さくてよく、圧縮空気も小さくて済み、ゴム
管８の開閉もスムーズに確実に行われる。 In the state shown in FIG. 4-2, both ends 15, 15 of the rubber tube 8 lightly contact the inner surface 2 of the valve body 3 in a narrow range, and the inner surface 2 of the valve body 3 and both ends 1 of the rubber tube 8 are in contact with each other in a narrow range.
5 and 15 have extremely small frictional resistance, and thus the differential pressure (the difference between the compressed air supplied from the supply/discharge hole 14 and the pressure of the fluid 13) for closing the flow path. Usually 2 kg/ (It is set to about cm 2. )
can be small, compressed air can be small, and the rubber tube 8 can be opened and closed smoothly and reliably.
第４−２図に示すような、ゴム管８の理想的な
流路１０の閉止状態は、例えば、第３図中のゴム
管８の外面５に於ける截頭７，７以外の同厚の部
分の中央部１６，１６より適宜離隔した相上下す
る部分１７，１７付近でたえずに屈曲した場合で
ある。 The ideal closed state of the flow path 10 of the rubber tube 8 as shown in FIG. 4-2 is, for example, when the outer surface 5 of the rubber tube 8 in FIG. This is a case where the parts 17, 17 are constantly bent near the parts 17, 17 which are vertically arranged and are appropriately spaced apart from the central parts 16, 16 of the part.
しかしながら、第３図に示すような截頭７，７
以外の部分が同厚であれば、屈曲部１７，１７
は、ゴム管８の開閉をしばらく繰り返している
と、モジユラスが中央部１６，１６に向かつて順
次小さくなつていき、屈曲部１７，１７の位置は
中央部１６，１６の方向に広がつていき、その結
果、第５図に示すように、ゴム管８の屈曲部の面
積は広くなり、Ｘ−Ｘ軸に近づき、弁本体３の内
面２と広い範囲で接触し、同時にゴム管８の内部
応力が高まり、弁本体３の内面２をゴム管８が広
い屈曲部１７，１７で強く押圧する。従つて、差
圧も増大し、ポンプも大容量のものを要し、開閉
もスムーズに行われなくなる。 However, the truncated 7,7 as shown in FIG.
If the other parts have the same thickness, the bent parts 17, 17
As the rubber tube 8 is repeatedly opened and closed for a while, the modulus gradually decreases toward the central portions 16, 16, and the positions of the bent portions 17, 17 widen toward the central portions 16, 16. As a result, as shown in FIG. 5, the area of the bent part of the rubber tube 8 becomes wider, approaches the X-X axis, contacts the inner surface 2 of the valve body 3 over a wide range, and at the same time the inside of the rubber tube 8. The stress increases, and the rubber tube 8 strongly presses the inner surface 2 of the valve body 3 with its wide bends 17, 17. Therefore, the differential pressure increases, a large-capacity pump is required, and opening and closing cannot be performed smoothly.
上記第５図のような状態で更に流路１０の開閉
を続けていくと、ゴム管８のモジユラスは、益々
中央部１６，１６の方に近づき、屈曲部１７，１
７の面積も益々広くなり、更にＸ−Ｘ軸に近づ
く。その結果、ゴム管８の内部応力は極端に増大
し、第６図に示すように互いに密接していたゴム
管８の内面４は、弁本体３の内面２に近い部分か
ら離反していき、空〓１８，１８を生じ、流路１
０の閉止は不完全になり、このような状態が生じ
ると、差圧をいくら大きくしても閉止不能な状態
に陥つてしまう。 As the flow path 10 continues to be opened and closed in the state shown in FIG.
The area of 7 also becomes wider and closer to the X-X axis. As a result, the internal stress of the rubber tube 8 increases extremely, and as shown in FIG. Empty = 18, 18 are created, flow path 1
0 will be incompletely closed, and if such a situation occurs, no matter how large the differential pressure is, it will become impossible to close.
本考案は、流路１０の開閉を長期間繰り返して
も、ゴム管８が、第５図及び第６図のような状態
にならず、常時第４−１図のような状態を維持で
きるピンチバルブを提供しようとするものであ
る。 The present invention is designed to prevent the rubber tube 8 from entering the state shown in FIGS. 5 and 6 even if the channel 10 is repeatedly opened and closed for a long period of time, and to maintain the state shown in FIG. 4-1 at all times. The aim is to provide a valve.
(ニ) 問題点を解決するための手段
本考案は、上記課題を解決するために、第１図
の縦断面図、第２図の第１図におけるＡ−Ａ線断
面図で示されるような、圧力流体給排孔１，１を
有し、内面２が円筒状である弁本体３内に、内面
４、外面５ともに円筒状であり、その外面５の相
対抗する部分６，６が適宜範囲に亘つて截頭７，
７状であるゴム管８が遊嵌され、その際、ゴム管
８の両端部９，９は弁本体３に密閉状に固定さ
れ、弁本体３とゴム管８との間に給排される圧力
流体によるゴム管８の変形により流路１０が開閉
されるピンチバルブにおいて、ゴム管８の截頭７
状である部分６と他の一方の相対抗している截頭
７状である部分６との略中間部１１，１１に長さ
方向に亘つて適宜凸起１２，１２が付設されてい
ることを特徴とするピンチバルブを提供したので
ある。(d) Means for solving the problems In order to solve the above-mentioned problems, the present invention has a structure as shown in the longitudinal sectional view in FIG. 1 and the sectional view taken along the line A-A in FIG. In a valve body 3 having pressure fluid supply and discharge holes 1, 1 and having a cylindrical inner surface 2, both the inner surface 4 and the outer surface 5 are cylindrical, and opposing portions 6, 6 of the outer surface 5 are arranged as appropriate. truncated over a range 7,
7-shaped rubber tube 8 is loosely fitted, and at that time, both ends 9, 9 of the rubber tube 8 are fixed to the valve body 3 in a sealed manner, and the valve body 3 and the rubber tube 8 are supplied and discharged between the two ends. In a pinch valve in which a flow path 10 is opened and closed by deformation of a rubber tube 8 by pressure fluid, the truncated end 7 of the rubber tube 8
Appropriate protrusions 12, 12 are provided in the longitudinal direction approximately at the intermediate portions 11, 11 between the truncated 7-shaped portion 6 and the opposing truncated 7-shaped portion 6. The company provided a pinch valve with the following characteristics.
上記ピンチバルブ中、ゴム管８の両端部９，９
の弁本体３への密閉状の固定は、弁本体３の鍔に
固定されている固定板１９，１９に補強環２０，
２０を螺着することによつて行われている。 In the pinch valve, both ends 9, 9 of the rubber tube 8
is fixed to the valve body 3 in a sealed manner by attaching a reinforcing ring 20 to the fixing plates 19 fixed to the collar of the valve body 3.
This is done by screwing 20.
(ホ) 作用及び効果
本考案のピンチバルブは、ゴム管８外面５の截
頭７状である部分６と他の一方の相対抗している
截頭７状である部分６との略中間部１１、１１に
長さ方向に亘つて凸起１２，１２が付設されてお
り、その凸起１２，１２の両側部は、流路１０を
流れる流体１３を閉止するときに生じる最初の屈
曲部１７，１７と略一致しており、従つて流体１
３の閉止、開放を繰り返すたそのゴム管８の閉
止、開放を繰り返しても、その最初の屈曲部１
７，１７は、凸起１２，１２のために中央部１
６，１６即ちＸ−Ｘ線方向に進行できず、（凸起
１２，１２のため、それ以外の部分にくらべ凸起
部分１２，１２は厚いので、相対的にモジユラス
の低下が少なくなり、凸起１２，１２の部分には
屈曲部は広がらない）、ゴム管８の屈曲は常時、
最初の部分のみで行われ、第４−１図で示すよう
な状態を長期間繰り返しても維持される。(e) Functions and Effects The pinch valve of the present invention has a truncated 7-shaped portion 6 on the outer surface 5 of the rubber tube 8 and an opposing truncated 7-shaped portion 6 at approximately the midpoint thereof. Protrusions 12, 12 are attached to the protrusions 11, 11 in the length direction, and both sides of the protrusions 12, 12 form an initial bend 17 that occurs when closing the fluid 13 flowing through the flow path 10. , 17, and therefore the fluid 1
Even if the rubber tube 8 is repeatedly closed and opened, the first bent part 1
7, 17 are the central part 1 due to the protrusions 12, 12.
6, 16, that is, it cannot advance in the X-X direction (because of the protrusions 12, 12, the protrusions 12, 12 are thicker than the other parts, so the decrease in modulus is relatively small, and the protrusion (The bent part does not widen in the portions 12 and 12), and the bending of the rubber tube 8 is always
This is done only in the first part, and is maintained even if the state shown in FIG. 4-1 is repeated for a long period of time.
従つて、第４−１図のような状態では、ゴム管
８の閉止状態での屈曲部１７，１７は、弁本体３
の内面２と狭い範囲で接触し、しかも、ゴム管８
内には内部応力が殆んど生じておらず、前記内面
２を押す力も弱く、従つて、小さな差圧でスムー
ズに開閉が行われる。 Therefore, in the state shown in FIG. 4-1, the bent portions 17, 17 of the rubber tube 8 in the closed state are
contact with the inner surface 2 of the rubber tube 8 in a narrow range.
Almost no internal stress is generated inside, and the force pushing the inner surface 2 is weak, so opening and closing can be performed smoothly with a small differential pressure.
勿論、ゴム管８の内面４同士も、よく密接し、
確実に流体を閉止しうる。 Of course, the inner surfaces 4 of the rubber tubes 8 are also in close contact with each other,
Fluid can be reliably closed.
第１図は本考案及び従来のピンチバルブの縦断
面図、第２図は本考案のピンチバルブの第１図に
おけるＡ−Ａ線断面図、第３図は従来のピンチバ
ルブの第１図におけるＡ−Ａ線断面図、第４−１
図は本考案のピンチバルブのゴム管による流路の
閉止状態を示す説明図、第４−２図〜第６図は従
来のピンチバルブのゴム管による流路の経時によ
る閉止状態を順次示す説明図である。
１……流体給排孔、２……内面、３……弁本
体、４……内面、５……外面、６……外面５の相
対抗する部分、７……截頭、８……ゴム管、９…
…両端部、１０……流路、１１……中間部、１２
……凸起、１３……流体、１４……給排孔、１５
……両端、１６……中央部、１７……屈曲部、１
８……空〓、１９……固定板、２０……補強環。
Fig. 1 is a longitudinal sectional view of the pinch valve of the present invention and the conventional pinch valve, Fig. 2 is a sectional view taken along line A-A in Fig. 1 of the pinch valve of the present invention, and Fig. 3 is a longitudinal sectional view of the conventional pinch valve in Fig. 1. A-A line sectional view, No. 4-1
The figure is an explanatory diagram showing the closed state of the flow path by the rubber tube of the pinch valve of the present invention, and Figures 4-2 to 6 are explanatory diagrams showing the closed state of the flow path by the rubber tube of the conventional pinch valve over time. It is a diagram. DESCRIPTION OF SYMBOLS 1...Fluid supply/discharge hole, 2...Inner surface, 3...Valve body, 4...Inner surface, 5...Outer surface, 6...Opposing parts of outer surface 5, 7...Truncated head, 8...Rubber Tube, 9...
... Both ends, 10 ... Channel, 11 ... Middle part, 12
... Convexity, 13 ... Fluid, 14 ... Supply and discharge hole, 15
... Both ends, 16 ... Center part, 17 ... Bent part, 1
8...Empty, 19...Fixing plate, 20...Reinforcement ring.
Claims (1)
である弁本体３内に、内面４、外面５ともに円筒
状であり、その外面５の相対抗する部分６，６が
適宜範囲に亘つて截頭７，７状であるゴム管８が
遊嵌され、その際、ゴム管８の両端部９，９は弁
本体３に密閉状に固定され、弁本体３とゴム管８
との間に給排される圧力流体によるゴム管８の変
形により流路１０が開閉されるピンチバルブにお
いて、ゴム管８の截頭７状である部分６と他の一
方の相対抗している截頭７状である部分６との略
中間部１１，１１に長さ方向に亘つて適宜凸起１
２，１２が付設されていることを特徴とするピン
チバルブ。 Inside the valve body 3, which has pressure fluid supply and discharge holes 1, 1 and whose inner surface 2 is cylindrical, both the inner surface 4 and the outer surface 5 are cylindrical, and the opposing portions 6, 6 of the outer surface 5 are arranged within an appropriate range. A rubber tube 8 having a truncated end 7, 7 is loosely fitted over the spacer, and at this time, both ends 9, 9 of the rubber tube 8 are fixed to the valve body 3 in a sealed manner, and the valve body 3 and the rubber tube 8 are
In a pinch valve in which a flow path 10 is opened and closed by deformation of a rubber tube 8 due to pressure fluid supplied and discharged between the rubber tube 8 and the truncated 7-shaped portion 6 of the rubber tube 8, the other side is opposed to the truncated portion 6 of the rubber tube 8. Appropriate protrusions 1 are provided in the longitudinal direction approximately at the intermediate portions 11 and 11 of the truncated 7-shaped portion 6.
A pinch valve characterized in that 2 and 12 are attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4151287U JPH0452539Y2 (en) | 1987-03-19 | 1987-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4151287U JPH0452539Y2 (en) | 1987-03-19 | 1987-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63147972U JPS63147972U (en) | 1988-09-29 |
| JPH0452539Y2 true JPH0452539Y2 (en) | 1992-12-10 |
Family
ID=30856586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4151287U Expired JPH0452539Y2 (en) | 1987-03-19 | 1987-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0452539Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6193698B2 (en) * | 2013-09-27 | 2017-09-06 | 政安 宮崎 | Pinch valve |
-
1987
- 1987-03-19 JP JP4151287U patent/JPH0452539Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63147972U (en) | 1988-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1520130B1 (en) | Diaphragm valve and open/close element for said valve | |
| ITTO990974A1 (en) | CHECK VALVE FOR MEDICAL INFUSION LINES AND SIMILAR. | |
| CA2164930A1 (en) | Elongated Heat Exchanger Tubes Having Internal Stiffening Structure | |
| JP7377009B2 (en) | pinch valve | |
| US5918857A (en) | Packing for the axis of a clack valve | |
| JPH034077A (en) | Check valve | |
| CN217977450U (en) | Valve body and valve gap cooperation mechanism and wedge gate valve | |
| JP4251590B2 (en) | Gate valve | |
| US3614060A (en) | Sleeved plug valve | |
| JPS6139885Y2 (en) | ||
| JPH0220874B2 (en) | ||
| JP2565786Y2 (en) | Pressure control valve | |
| JPS6039584Y2 (en) | check valve | |
| CN216045520U (en) | Butterfly plate for valve | |
| CN220816652U (en) | Check valve | |
| CN221610647U (en) | Fully welded check valve | |
| CN216344061U (en) | Valve core, pinch valve and battery liquid injection device | |
| JPS63147972U (en) | ||
| JP2555955Y2 (en) | Hinge cap | |
| JPH0519649Y2 (en) | ||
| JPH0348458Y2 (en) | ||
| JPS6221184Y2 (en) | ||
| JPH0388001U (en) | ||
| JPH0685977U (en) | Acid resistant control valve | |
| JPH0242925Y2 (en) |