CN1153876A - Valve device - Google Patents
Valve device Download PDFInfo
- Publication number
- CN1153876A CN1153876A CN 96100334 CN96100334A CN1153876A CN 1153876 A CN1153876 A CN 1153876A CN 96100334 CN96100334 CN 96100334 CN 96100334 A CN96100334 A CN 96100334A CN 1153876 A CN1153876 A CN 1153876A
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- CN
- China
- Prior art keywords
- control valve
- casing
- float
- liquid
- described control
- 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.)
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- Float Valves (AREA)
Abstract
A valve device for controlling the passage of liquid into a container comprising of a chamber body housing a seal means. The inflowing flow of the liquid is used to seal off the flow of liquid into the container. The chamber body is connected to liquid inflow conduit and to a float body to displace the seal means from a first pre-determined level to a second position when the liquid in the container reaches or exceeds a second pre-determined level. The chamber body includes a first outlet port at the floor of the chamber body. A first seal body sealingly closes the first outlet port and a second seal body sealingly closes the second outlet port. The movement of the float body dictates the flow of liquid into the container.
Description
The present invention relates to control valve unit that the liquid stream that flows into a container is controlled, particularly the inlet shut off valve that the liquid stream that flows into a container or tank is regulated.
Known in the state of the art have all shut off valves, and they close the liquid stream that flows into container after liquid reaches predetermined altitude.Float valve is exactly a kind of shut off valve.This class float valve volume is big, occupies very large space in container.The length that the container of this shut off valve is housed is decided by the configuration of ball float and the lever arm that is connected with ball float.Another shortcoming of existing shut off valve is that this valve bears the pressure that flows into liquid stream, and therefore this structure causes the frequent wearing and tearing of plastic sealing gasket and needs often maintenance.
Therefore the purpose of this invention is to provide a kind of control valve unit that is used for controlling the liquid stream that flows into a container, wherein, the power pressure of influent is used to close the liquid stream that flows into container.
Another object of the present invention provides a kind of control valve unit, and the compact structure of this control valve unit reduces with employed float valve comparison volume in the existing control valve unit.
The present invention discloses a kind of control valve unit that is used for controlling the liquid stream that flows into a container.The present invention is made of the casing of an interior dress Sealing, this casing is connected with a float with a liquid inflow catheter, and this float makes the sealing part move to liquid in containers and meet or exceed the relative second place of second predetermined altitude from being positioned at liquid in containers or being lower than the corresponding primary importance of first predetermined altitude.Second aspect ratio first is highly high, thereby in the container big quantity of fluid is arranged when second height.One exit orifice is arranged on the base plate of this casing.The present invention also comprises first seal of shutting first exit orifice hermetically and second seal of shutting second exit orifice hermetically.When float was in primary importance, first and second exit orifices were opened, and flow of liquid flows into this container from this casing again after going into casing.When float was in the second place, first and second exit orifices were shut hermetically by first and second seals respectively.
According to another aspect, the cross sectional area of first seal be slightly less than the internal cross section area of casing and the difference of cross sectional area that makes seal and casing less than the cross sectional area of second exit orifice.
Second seal is a T shape seal arrangement.This T shape seal arrangement can move to second predetermined altitude and correspondingly move to the second place from primary importance from first predetermined altitude along with float.The one axle moving part that is enclosed within on the pivot makes the axle part of this T shape seal arrangement move along with moving of float.
Below in conjunction with accompanying drawing in detail the present invention only is described in detail by way of example, in the accompanying drawing:
Fig. 1 is the constructed profile map that is in this control valve unit of sealing station;
Fig. 2 is the constructed profile map of this control valve unit of being shown in an open position;
Fig. 3 is the sectional drawing of the float that is connected with the axle movement rod.
Fig. 1 and Fig. 2 illustrate the control valve unit 10 on the sidewall that installs to a container 12.This control valve unit 10 comprises an inlet duct 14 that is connected with a casing 16, and this casing is connected with a fulcrum spare 18.Inlet duct 14 is connected on the casing 16 hermetically and comprises for liquid from inlet duct and flow into first hole 20 this casing 16.
Two holes are arranged, i.e. second hole 22 on the roof box and the 3rd hole 24 on the box bottom on the casing 16.The one floating type sealing 26 that moves freely is arranged in the casing 16, and this floating type sealing is preferably tubulose, one end sealing, the other end opening has first sealing gasket 28 between second hole 22 and this floating seal, the 3rd hole 24 tightly above second sealing gasket 30 is arranged.Also have a hobnail 32 that has a major axis in addition, the shape of the tack 34 of this nail is made and can be located on second sealing gasket 30.Axle 36 passes from the 3rd hole 24.One sealing seat 38 ' is across on the diameter of fulcrum spare.
A movement rod 38 is enclosed within on the pivot of fulcrum spare 18.The support end of this movement rod is arranged in this fulcrum spare and the axle 36 of close nail 32.This movement rod 38 stretches in the big chamber 40 of tank 12.The end of this movement rod 38 has a float 42.
The cross sectional area of floating type sealing 26 is slightly less than the internal mode section area of casing 16.The difference of the cross sectional area of floating type sealing 26 and casing 16 is less than the cross sectional area in the 3rd hole 24.
The following describes working mechanism of the present invention and further feature.Position when Fig. 1 illustrates each parts liquid level reaches predetermined altitude in tank 12.At this moment, float 42 is in position B (Fig. 2), thereby axle movement rod 38 is away from the axle 36 of nail.On this position, the axle 36 of nail freely stretches owing to be subjected to hydraulic pressure on the ailhead 34.Ailhead 34 is located on the end face of second sealing gasket 30.There is not liquid to flow into the tank from the 3rd hole 24 of casing 16 through casing.
Sealing 26 is compression seal pad 28 hermetically.There is not liquid to flow out casing from the upper hole 22 of casing.The spring part 44 that one wire coiled is arranged between sealing 26 and the ailhead 34 drops on the 3rd hole or the ailhead to guarantee that sealing is not whole.Sealing 26 is preferably cup-shaped (Fig. 3).When the 3rd hole 24 was shut hermetically, the hydraulic pressure in the hydraulic pressure in the inlet duct 14 and the casing 16 equated.Hydraulic pressure in the casing makes progress jack-up sealing 26 and makes it be tight against sealing gasket hermetically.Can find out, therefore do not have liquid to flow into tank 12 through this control valve unit this moment from inlet duct 14 owing to there is not liquid to inject casing 16.
When the liquid level in the tank 40 dropped under the predetermined altitude, float 42 and axle movement rod 38 moved around fulcrum, thereby the axle 36 of nail is pushed away original axis.The axle 36 of nail is mobile subsequently, and ailhead 34 leaves second sealing gasket 30.Liquid flows into tank 40 from casing 16, thereby the hydraulic pressure in the casing descends.
Because the difference of sealing 28 and the cross sectional area of casing is less than the cross sectional area in the 3rd hole 24, thus the flow-rate ratio of tap hole 24 to seal the liquid measure that flows 26 belows many.Enter casing 16 liquid hydraulic pressure greater than the sealing 26 belows hydraulic pressure.Sealing is owing to differential water pressures is pressed down.When sealing moves apart second hole 22 downwards, send into the liquid of casing and go into tank from second orifice flow.
Sealing 26 is away from the sealing pad, and the liquid that flows into from inlet duct flows into tank through upper hole 22 (in a large number) and lower hole 24 (on a small quantity).Along with liquid injects tank 40, float 42 rises to liquid level B from liquid level A.
When float arrives liquid level B, axle movement rod 38 away from the axle 36 of nail this axle available from by, thereby ailhead 34 is tight against second sealing gasket 30 hermetically.Because liquid is pressed into the bottom that is positioned at sealing 26 belows of casing, the hydraulic pressure of sealing below raises, and does not have liquid to flow out at place, the 3rd hole simultaneously.Top sealing in the rising of the hydraulic pressure of sealing below and close second hole.
In a single day upper hole closes, and the hydraulic pressure of casing 16 just equates with hydraulic pressure in the inlet duct that this hydraulic pressure of casing 16 is tight against the sealing gasket at second hole 22 and 24 places, the 3rd hole respectively for this valve seal 26 and ailhead 34.
Can see that sealing 36 and ailhead mobile are decided by the hydraulic difference that causes when float is on first and second precalculated positions in casing.The cross sectional area A1 in second hole is greater than the cross sectional area A2 in the 3rd hole.The poor S3 of the internal cross section area S1 of casing and the cross sectional area S2 of sealing is less than the cross sectional area A2 in the 3rd hole.
Thereby have:
A1＞A2，S2＜S1
S2-S1＝S3
And S3＜A2 and S3＜A1.
If entering the pressure of the liquid of casing is P2, and the pressure that seals the liquid between the 26 and the 3rd hole is P1, and P1=P2 is then arranged when this control valve unit cuts out, and P1＜P2 is arranged when opening.
The height that injects the liquid of tank 40 is decided by that float 42 leaves the height of tank bottom surface, therefore regulates the height that float 42 leaves the tank bottom surface and just can pre-determine the liquid measure of injecting tank before this control valve unit cuts out the liquid stream that enters casing automatically.
Fig. 3 illustrates one and regulates the device that float 42 leaves the height of tank bottom surface.One end of axle movement rod 38 has a vertical stretching part 46, and these parts 46 have a longitudinal cut 47 along its length direction, and this otch is enclosed within one and connects on the pin 48.This connection pin 48 installs on the float 42, and this float 42 can slide along the pinion and rack of these parts 46.
As can be seen, also available other method or structure install to float 42 on the movement rod 38.In a preferred embodiment, float is connected with these parts 46 by pinion and rack.
If want the liquid stream through upper hole 22 is directed to a certain position, the pipe fitting 50 of available appropriate designs installs to (Fig. 3) on the casing 16.Also can see, can make one to casing 16 and fulcrum spare 18, or preferably make respectively, promptly first casing and the second fulcrum spare 18 be linked together with threaded piece or other existing apparatus.In example shown in Figure 3, fulcrum spare 18 usefulness threaded pieces install on the end of casing 16.
Claims (22)
1, a kind of control valve unit that is used for controlling the liquid stream that flows into a container (12), comprise the casing of adorning a seal arrangement in one, this casing is connected with a float with a liquid inflow catheter (14), this float is used for the sealing part is moved to liquid in containers and meets or exceeds the corresponding second place of second predetermined altitude from being equal to or less than the first predetermined altitude corresponding first location with container (12) liquid, second aspect ratio first is highly high, it is characterized in that:
This casing (16) comprises first exit orifice (22), second exit orifice (24) and the inlet opening that flows into for the liquid in the main-supply, shut first seal (26) of first exit orifice between first and second exit orifices hermetically and shut second seal (35) of second exit orifice (24) hermetically;
Wherein, when float was positioned on the primary importance (A), first and second exit orifices were opened, and liquid flows into this container from this casing after flowing into this casing, and when this float was positioned on the second place (B), first and second exit orifices were shut hermetically by first and second seals respectively.
2, by the described control valve unit of claim 1, wherein, first seal comprises a U-shaped spare (26), and its proportion is less than the proportion of the liquid that flows through this control valve unit.
3, by the described control valve unit of claim 2, wherein, this first seal is cup shell (26).
4, a kind of control valve unit (10) that is used for controlling the liquid stream that flows into a container (12), comprise the casing of adorning a Sealing in one, this casing is connected with a float with a liquid inflow catheter (14), this float makes the sealing part move to liquid in containers and meet or exceed the corresponding second place of second predetermined altitude from being positioned at liquid in containers or being lower than the corresponding primary importance of first predetermined altitude, second aspect ratio first is highly high, it is characterized in that:
Cross sectional area is that the casing (16) of S1 comprises that cross sectional area is first exit orifice of A1, second exit orifice that cross sectional area is A2 and the inlet opening (20) that flows into for the liquid of main-supply (14), closes first seal (26) that first exit orifice and mode cross section area are S2 hermetically, and second seal (35) of closing second exit orifice hermetically, wherein A1＞A2 and S2＜S1; The cross sectional area S2 of casing (16) and sealing body (24) and the poor S3 of S1 are less than A1 and less than A2;
When float was positioned on the primary importance (A), first and second exit orifices were opened, and the liquid that flows into casing flows into this container from casing; And when float was positioned on the second place (B), first and second exit orifices were closed hermetically by first and second seals respectively.
5, by claim 1 or 4 described control valve units, wherein, this first seal is a plane, and its cross sectional area S2 is slightly less than the cross sectional area S1 of casing (16), and it can slide along the longitudinal axis of casing (16).
6, by the described control valve unit of claim 5 (10), wherein, this control valve unit comprises and prevents that the sealing body is combined in the device on second exit orifice.
7, by the described control valve unit of claim 6 (10), wherein, this device that prevents that the sealing body is combined on second exit orifice comprises a spring part.
8, by the described control valve unit of claim 6 (10), wherein, this prevents that the sealing body is combined in device on second exit orifice and comprises a attaching means between the sealing body and second exit orifice.
9, by claim 1 or 4 described control valve units, wherein, second seal comprises-T shape seal arrangement (35), wherein, the axle part (36) of sealing device can move to float and is in the second corresponding longitudinal axis of second precalculated position from being in the first corresponding longitudinal axis of first precalculated position with float.
10, by the described control valve unit of claim 9, wherein, the axle moving part (38) that the axle part (36) of sealing device (35) can be connected on the float moves apart its longitudinal axis.
11, by the described control valve unit of claim 10, wherein, this is moved part by a L shaped formation of inclination that is enclosed within on a fulcrum spare (18) pivot.
12, by the described control valve unit of claim 11, wherein, this fulcrum spare (18) is contained on the casing (16).
13, by the described control valve unit of claim 10, wherein, this moving part comprises that one is contained in the vertical part (46) on these moving part (38) one ends.
14, by the described control valve unit of claim 13, wherein, this vertical part comprises a kerf (47), and one connects pin is enclosed within this otch slidably, and this pin is contained on the float.
15, by the described control valve unit of claim 1, wherein, a biasing member (44) is between first and second seals.
16, by the described control valve unit of claim 15, wherein, this biasing member is a spring ring.
17, by claim 1 or 4 described control valve units, wherein, seal washer is placed between exit orifice and the seal.
18, by claim 1 or 4 described control valve units, wherein, a cannula member is connected with first inlet opening.
19, by claim 1 or 4 described control valve units, wherein, the base plate of casing can unload from casing.
20, by the described control valve unit of claim 19, wherein, the base plate of casing is connected with this fulcrum spare.
21, by claim 1 or 4 described control valve units, wherein, float (42) is mounted to and can moves around casing.
22, a kind of float that can move to the second place from primary importance is characterized in that, this float (42) is packed in the rack and pinion assembly; Wherein, described assembly is connected with a liquid control valve device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100334 CN1153876A (en) | 1996-01-05 | 1996-01-05 | Valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100334 CN1153876A (en) | 1996-01-05 | 1996-01-05 | Valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1153876A true CN1153876A (en) | 1997-07-09 |
Family
ID=5116539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96100334 Pending CN1153876A (en) | 1996-01-05 | 1996-01-05 | Valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153876A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333982A (en) * | 2008-12-24 | 2012-01-25 | 罗伯绍控制器公司 | Pilot operated water valve |
| CN108167512A (en) * | 2018-02-13 | 2018-06-15 | 杨召泽 | A kind of ball-cock assembly |
| CN108194692A (en) * | 2018-02-13 | 2018-06-22 | 杨召泽 | A kind of ball-cock assembly easy to use |
| US11047501B2 (en) | 2017-07-14 | 2021-06-29 | Robertshaw Controls Company | Normally open gas valve |
| US11112025B2 (en) | 2017-03-30 | 2021-09-07 | Robertshaw Controls Company | Water valve guide tube with integrated weld ring and water valve incorporating same |
-
1996
- 1996-01-05 CN CN 96100334 patent/CN1153876A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333982A (en) * | 2008-12-24 | 2012-01-25 | 罗伯绍控制器公司 | Pilot operated water valve |
| US8453992B2 (en) | 2008-12-24 | 2013-06-04 | Robertshaw Controls Company | Pilot operated water valve |
| CN102333982B (en) * | 2008-12-24 | 2013-12-18 | 罗伯绍控制器公司 | Pilot operated water valve |
| US11112025B2 (en) | 2017-03-30 | 2021-09-07 | Robertshaw Controls Company | Water valve guide tube with integrated weld ring and water valve incorporating same |
| US11047501B2 (en) | 2017-07-14 | 2021-06-29 | Robertshaw Controls Company | Normally open gas valve |
| CN108167512A (en) * | 2018-02-13 | 2018-06-15 | 杨召泽 | A kind of ball-cock assembly |
| CN108194692A (en) * | 2018-02-13 | 2018-06-22 | 杨召泽 | A kind of ball-cock assembly easy to use |
| CN108194692B (en) * | 2018-02-13 | 2024-02-13 | 杨召泽 | Float valve that facilitates use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |