CN1180804A - Water flow control mechanism - Google Patents
Water flow control mechanism Download PDFInfo
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- CN1180804A CN1180804A CN 96121113 CN96121113A CN1180804A CN 1180804 A CN1180804 A CN 1180804A CN 96121113 CN96121113 CN 96121113 CN 96121113 A CN96121113 A CN 96121113A CN 1180804 A CN1180804 A CN 1180804A
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- fluid
- control gear
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- chamber
- pressure
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Abstract
The present invention provides a fluid supply control device, comprising a chamber adapted to contain fluid at a system pressure, partition means whithin said chamber and serving to define first and second compartments in said chamber, the partition means is movable in said chamber and to alter the ralative size of each of compartments. The operation of fluid pressure release means causes or allows release of pressure, the resultant pressure differential across partition means said partition to move and causing said closure means to move to the open position.
Description
The present invention relates to the current control in the pressure water system, particularly relate to and be used for the valve that fluid selects the switch of supply to use.
Switch washbasin under construction, water spraying pool, bathing pool, the selection of the water of shower or other watering place is supplied with many application.This switch comprises that significantly one is suitable for valve member near valve seat by rotating corresponding switch knob.When valve member and valve seat engagement, current stop.Rotatable handle is lifted off a seat said valve member and water can be emitted.
This mechanism has used decades.Unless find that a problem that exists is to rotate thorough cut-out current by hand, in a single day switch is opened, water will unfailingly flow out.Unless the user notes like this, potential the serious waste of water.In addition, this switch impel the user in the process of washing all the time with switch opens, rather than wash again after being full of the pond.Therefore, a kind of like this mechanism trends towards encouraging or allowing at least to waste water.Continuously outflow if supply water, this is in the place of olighydria and water source preciousness, and the place that flood perhaps might take place is especially serious.
The problem of above-mentioned waste is overcome in the production of cutting off switch automatically, and this switch is judged enough once waters of common flushing process over time and just cut off switch automatically.
Significantly, this switch comprises a columniform chamber that includes the water of system pressure.Piston in the chamber is blocked the outlet of fluid.The user depresses plunger when the needs current, and plunger acts on the described piston, therefore forces piston to move down in chamber.When piston moved down, owing to form the resiliently deformable of the resilient cup ring of piston, the water of chamber bottom can enter cylindrical top.The distortion of cup ring makes fluid flow into the remaining part of chamber and piston.Piston move downward the outlet of exposing fluid, therefore make fluid flow out chamber and flow to outlet.
The chamber lower surface has an aperture to make fluid get back to cylindrical bottom.Between plunger and switch case, have a stage clip to impel piston to get back to its initial position, and by aperture gradually water filling make the piston return, thereby stop up fluid output.
In use, the user depresses plunger, and water begins to flow out from switch.Water flows out continuously gets back to its initial position until piston.The speed that piston returns is by the stage clip compliance and make water enter the size control in hole of the bottom of chamber.
Mechanism finds the several problems that will solve thus.At first, plunger action need operator's active force is big, because the water of the stressed downward opposing incompressible volume of piston, these water can only move by the cup ring that flows through distortion.Therefore the required power of operating switch is very big, and this can give for example child of user, and handicapped people or the elderly/arthritis patient bring problem.
In addition, the very high flow velocity that flows through cup ring has quickened the hydrostatic wearing and tearing of ring and adjacent chamber, and the sealing between finally destroying chamber and glass encircling is got back to its closed position immediately in case depress piston.Therefore under the situation of this damage, plunger must be depressed continuously could effluent fluid.
Compare with at present used form, valve system requires and can enough less power operate, and reduces the wearing and tearing to critical component.
According to the invention provides a kind of fluid apparatus for controlling of supply, comprising:
A chamber that is suitable under system pressure, holding fluid,
Be used for the segregating unit in the described chamber of described chamber qualification first Room and second Room, thereby this segregating unit can move the relative size that changes each described chamber in described chamber,
The fluid output that links to each other with described second Room,
Be suitable for the fluid output shutoff device that moves with described segregating unit, clog the fluid output of described second Room, fluid is flowed out from described outlet at open position in position of rest, and
The hydrodynamic pressure releasing device that is used for described first Room,
The operation that is arranged to the hydrodynamic pressure releasing device causes that the pressure of described first Room discharges, thereby the described segregating unit of pressure official post on the described segregating unit moves, and therefore causes that described shutoff device moves to open position.
Can start fluid very simply by release pressure from chamber in this way flows.Therefore the hydrodynamic pressure in the chamber is used for promoting the carrying out of releasing course.Because do not resemble one type of prior art syringe, in use needn't oppress water and pass through from segregating unit, the wearing and tearing of segregating unit parts reduce greatly.It is impure that this makes that the present invention is particularly suitable for supplying with water, unholiness or the situation of particle arranged.
System pressure preferably is higher than external atmospheric pressure.Gravity during this pressure can be supplied with by water provides, and perhaps can be provided by pump.
Pressure releasing means may mean the volume that increases described second Room, but preferably makes described pressure releasing means be suitable for and can select release fluids from described chamber.Pressure releasing means can comprise a valve that is recovered by spring force, discharges limited amount water before getting back to closed position.The operation that the spring that is undertaken by the operator recovers valve causes that pressure discharges, and causes current.
Second Room preferably has one or more and described fluid and supplies with the fluid input that links to each other.In use keep hydrodynamic pressure whereby.
Fluid is supplied with the supply that can comprise the fluid with different qualities.For example the fluid that links to each other with first inlet can be hot, can be cold with second mouthful of fluid that links to each other.Hot fluid and cold fluid enter into second Room after triggering like this, and the warm fluid that is suitable for washing flows out from device.
First Room can have an orifice again that links to each other with the system pressure fluid, therefore makes the pilot pressure in described first Room return to system pressure.Because pressure recovery in first Room, separating component returns to second Room, and shutoff device cuts out outlet at last.An automatic pressure shut-off means is provided whereby.
Described hole can link to each other so that the fluid of described system pressure to be provided with second Room.
Can change fluid by the size that changes described hole and supply with the preceding time of cut-out.Size at the manufacture process mesopore can be determined, but described in one embodiment hole can provide effective size that throttling arrangement is used for adjusting the hole.
Throttling arrangement can be operated by the user in the chamber outside.Can adjust change that perhaps can bucking-out system pressure whereby break time according to application need to this device.
Throttling arrangement is provided in a side of a needle-valve in the hole in one embodiment.Other throttling arrangement that is fit to is conspicuous for those skilled in the art.
Throttling arrangement can take out and be beneficial to clean/remove obstruction near described hole constantly.
Segregating unit can comprise that is suitable for a separating component mobile in described chamber.Between the internal surface of described separating component and described chamber, have a sealing, be used for keeping the sealing contact at sliding process.
Fluid apparatus for controlling of supply of the present invention comprises that on the other hand one is suitable for a part of fluid in the device and the separating component opened of another part fluid breakdown, this separating component also is suitable for sliding against the surface of a mechanism and moving, and a sealing is wherein arranged between described separating component and described surface, be characterized in that described sealing made by leather.
Leather suction and expand and be fit to the discontinuous of mechanism surface, therefore even the sealing of still remaining valid in the place of surface abrasion in use takes place.Such sealing is particularly useful for the wearing and tearing of the friction particle that hydrostatic wearing and tearing and/or water have.
Using another advantage of leather for the cup sealing material is to tend to polish contact surface when it slides on the surface, therefore improves the reliability of fluid-tight and slip.
Be below one by embodiment with reference to the description of accompanying drawing to method of the present invention.
Fig. 1 is the present invention's stereogram of the water supply installation of cut-out automatically.
Fig. 2 is the exploded view of same device.
Fig. 3 is the sectional arrangement drawing along A-A line vertical plane shown in Figure 1.
Fig. 4 is the sectional arrangement drawing along the X-X line shown in Figure 1.
Fig. 5 is the sectional view by a switch, comprises a device of the present invention, is placed on a part of pond.
In Fig. 1, a water supply installation 10 that cuts off automatically comprises a normally columniform housing 10.Housing has the 12 and pressure of 11, one outlets of inlet that supply water and discharges drain opening 13, the direction that fluid flowed when corresponding arrow was represented to use.The top surface 14 of housing has an operating knob 15, depresses this button the device operation is supplied water, and this point will be described below.
In Fig. 2, normally columniform parts 20 have a upper end 21.The upper end of parts outwards becomes step, forms annular flange 23.The lower surface of flange forms a crosspiece 22.Crosspiece has a discharge orifice 24.Discharge orifice links to each other with discharge pipe 27.Discharge pipe extends downwardly into the lower end 25 of parts by the sidewall 17 of parts, and the lower end of parts is the necks of closing until annular cover 26.
Below flange 23, there is a radial hole 29 to extend to cylindrical inner 38.End by surperficial 36 places at ring in hole 29.On the surface, truncated cone orifice 37 is again arranged.This hole penetrates sidewall and forms a path of leading to cylindrical cylindrical cavity 38.
There is the screw thread that is used for admitting respective threads plug 16 in hole 29 at internal surface 30.The appearance of this plug is normally cylindrical, and the one end has a projection 31.Have two ring washers of axially placing 32,33 on this projection.Ring-shaped rubber sealing 34 of this packing ring sandwich.The end of described projection dwindles into a point 35.Under situation about putting in place, point 35 falls into sidewall truncated cone hole 37.
A normally columniform piston assembly 40 is arranged in cylindrical cavity 38.This piston assembly 40 comprises a cut piece 41 that axially is installed on the bar 45.Cut piece comprises that one is clipped in down ring back-up ring 43 and a cup seal 42 of going up between the ring extremity piece 44.Extremity piece 44 can be by screw thread and bar 45 engagements.There is an annular valve member 46 lower end of bar.This valve member 46 is fixed on the bar 45 by nut 47.Nut 47 can be by screw thread and bar engagement.
Pressure release mechanism is a cylinder shape assembly 50 normally.This mechanism comprises annular frame parts 51.This frame parts has a upper end 52.The upper end is provided with a coaxial annular groove 53.Be provided with an end cap 54 in the groove.An annular space is arranged between the interior annular flange 55 of end cap sidewall 56 and frame parts.Stage clip 57 is located in this gap.
In Fig. 2, the housing of this device is cylindrical wall 80 normally.This wall 80 has an open top end 81.The top has a barb element that is suitable for cylindrical sleeve 19 interlockings.The bottom of housing is closed by a plane 82.This plane is passed in an inlet opening 83.There are a ring-shaped rubber Sealing 84 and the engagement of water pipe (not shown) watertight in the lower end of inlet opening.A center hole on the plane is an exit orifice 12.The unique construction that exit orifice 12 has makes the water deflection with all strength to outflow.Exit orifice 12 and fluid output (not shown) that joins.Another hole is relative with inlet opening 83 an in the plane side.Described another hole is a tap hole 86.
Assembly method is that cylindrical body 20 is placed in the opening end 81 of housing 80.In the groove of the outside of cylindrical body 20, put into lip ring l8, between housing 80 and cylindrical body 20, form water-stop.
Then, plug 16 is screwed in the hole 29.Piston 40 is packed in the cavity 38 of cylindrical body 20.Cup seal 42 have one slightly the profile of flare to guarantee tight contact the between cup seal and the cavity internal surface.
The sealing at the top of cylinder part is to be realized by the engagement of pressure release mechanism 50 with the annular flange flange 23 on the top 21 of cylindrical body 20.Described frame parts 51 lower end parts 77 have a lip ring 78.The sealing part is located in the end portion corresponding grooves.Sealing 78 forms the watertight butting surface between the internal surface of the cavity 38 of frame parts 51 and cylinder part.As shown in Figure 4, pressure release mechanism is fixed by an end ring 90.End ring 90 has the collar flange 92 on a top annular projection 91 fastening frame partss 51 outer surfaces.A plain washer 93 is located between the upper end 21 of flange 92 and cylinder part 20.
Being assemblied in shown in Fig. 3 and Fig. 4 of said apparatus.
As shown in Figure 5, foregoing water treatment apparatus is installed on the switch 200 on the tub wall 201.Switch comprises normally cylindrical parts 202.Cylinder part has an opening extension 203, and its bearing of trend is radially to leave cylindrical cylindrical side wall 204 to extend obliquely upward.Open end has a downward exit orifice 205.
The lower end of cylinder part forms a truncated cone neck 206 that upwards dwindles.This neck has one at its threaded center hole 207 in 208 places, lower end.Threaded end 208 meshes with the upper end of water pipe 210.Water pipe 210 extends through the passage of tub wall downwards from switch.
Switch body parts 202 have an open upper end 211, and water controller 10 is inserted wherein.The internal surface 212 of open upper end has screw thread, is used for and encircles the respective threads engagement (as shown in Figure 4) of 90 outer surface 99.Water controller aligns by a ring-type contact ring 213 and switch body parts 202.Ring 213 forms strut rail at the internal surface of cylinder part, contacts with ring 215 sealings of housing 80 lower ends, as shown in Figure 4.
The upper end of water controller protrudes in the switch body parts.The upper end has a dome-shaped end cap 216.Dome-shaped end cap is screwed in by a bolt 217 and meshes a butt hole and link to each other with button 15, as shown in Figure 5.
In use, pipe 210 has the press water supply.Water is by inlet, by inlet channel 100 inletting device, as shown in Figure 3.Passage is limited by the gap between shell body wall 101 and the cylindrical wall 102.There is fluid communication in hole 103 on the wall 102 with the following chamber 104 of cylindrical cavity 38.One again orifice 37 be positioned at the upper end of wall 102.This hole makes water can enter the last chamber 106 of cavity 38.Last chamber and following chamber are separated by a separation member that comprises cup seal assembly 42.
Under static state, water occurs in last chamber and following chamber to supply with pressure.When needs discharge water, depress dome-shaped end cap 216.Push rod 58 moves down thus.Push rod lower end 68 enters the chamber.Because lip ring leaves the lower end 77 of frame parts, press water extrudes from last chamber 106 and enters between the annular row clearancen 110.Water almost is to enter immediately, and the therefore simple lower end cap 216 of pressing is enough to make the pressure of chamber to discharge.Stage clip 57 is guaranteed that push rod discharges and is got back to closed position.Water at emission quotas can be discharged through discharge route 24.
Because before water enters into emission quotas 110, the push rod chamber of entering only need move down very little distance (common several millimeters), so the required power of drive unit is very little.
In case pressure discharges from last chamber, there is pressure difference in the both sides of cup seal assembly 42.Higher pressure makes piston assembly 40 move up in cavity 38 in the therefore following chamber.Because assembly moves up, valve member 46 leaves the top surface of annular cover 26, and stopper 47 leaves sleeve, therefore water is flowed out from exit orifice.Water is full of the bottom of switch body parts, from the opening outflow of switch.
Water continues stream, until the shallow bid water that enters by orifice 37 again chamber pressure is increased to and is higher than time chamber pressure.In this point, piston assembly 40 is moved back into closed position downwards.
Because water is discharged continuously from following chamber when the water filling of last chamber, the pressure in the following chamber will be less than pressure of supply water.Bernoulli effect will cause valve member 46 near annular cover 26 flowing with the prevention fluid.But because water is incompressible, any downward moving all is that the water injection rate by last chamber causes.
The water filling of therefore going up the chamber causes fluid output to cut off automatically.Cutting off the time of taking place can adjust by rotary connector 16.Because the projection of plug 16 31 approaching orifices 37 again, the effective dimensions of annotating path 10 5 again reduces, and injection rate therefore slows down.
Claims (15)
1. fluid apparatus for controlling of supply comprises:
A chamber that is suitable under system pressure, holding fluid,
Be used for the segregating unit in the described chamber of described chamber qualification first Room and second Room, thereby this segregating unit can move the relative size that changes each described chamber in described chamber,
The fluid output that links to each other with described second Room,
Be suitable for the fluid output shutoff device that moves with described segregating unit, clog the fluid output of described second Room, fluid is flowed out from described outlet at open position in position of rest, and
The hydrodynamic pressure releasing device that is used for described first Room,
The operation that is arranged to the hydrodynamic pressure releasing device causes that the pressure of described first Room discharges, and the described segregating unit of pressure official post from the described segregating unit of face moves, and therefore causes that described shutoff device moves to open position.
2. according to the control gear of claim 1, it is characterized in that second Room has one or more fluid inputs that are used for supplying with fluid under system pressure.
3. according to the control gear of claim 2, what it is characterized in that linking to each other with an inlet is the fluid of heat, and entering the mouth with another, what link to each other is cold fluid.
4. according to the control gear of above-mentioned any one claim, it is characterized in that pressure releasing means is suitable for from second Room selectively release fluids.
5. according to the control gear of claim 4, it is characterized in that pressure releasing means comprises a valve that is suitable for discharging the dependence spring reset of limited water gaging before getting back to closed position.
6. according to the control gear of above-mentioned any one claim, it is characterized in that first Room has a fluid communication under orifice and the system pressure again, therefore the pressure that can control described first Room is returned to system pressure, thereby segregating unit makes shutoff device get back to position of rest.
7. according to the control gear of claim 6, it is characterized in that described orifice again communicates with second Room, therefore the fluid of system pressure is provided.
8. according to the control gear of claim 7, it is characterized in that the size of described orifice again can change by throttling arrangement.
9. control gear according to Claim 8 is characterized in that this throttling arrangement is to be suitable for the user to regulate from the chamber outside.
10. according to the control gear of claim 9, it is characterized in that this throttling arrangement has a needle-valve in the hole.
11. any one control gear in 10 is characterized in that this throttling arrangement is suitable for taking out, thereby helps constantly near described hole from device according to Claim 8.
12., it is characterized in that segregating unit comprises and be suitable for the separating component change by in described chamber, sliding according to the control gear of above-mentioned any one claim.
13. according to the control gear of claim 12, it is characterized in that between the internal surface of described and described chamber, having Sealing, thereby keep the sealing contact between the two.
14., it is characterized in that making by leather at described Sealing according to the control gear of claim 13.
15. one kind foregoing and with reference to the control gear of accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96121113 CN1180804A (en) | 1996-10-25 | 1996-10-25 | Water flow control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96121113 CN1180804A (en) | 1996-10-25 | 1996-10-25 | Water flow control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1180804A true CN1180804A (en) | 1998-05-06 |
Family
ID=5126759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96121113 Pending CN1180804A (en) | 1996-10-25 | 1996-10-25 | Water flow control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106233075A (en) * | 2014-05-09 | 2016-12-14 | 埃迈海卓尼克工程国际有限责任公司 | Valve gear |
-
1996
- 1996-10-25 CN CN 96121113 patent/CN1180804A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106233075A (en) * | 2014-05-09 | 2016-12-14 | 埃迈海卓尼克工程国际有限责任公司 | Valve gear |
| CN106233075B (en) * | 2014-05-09 | 2019-06-04 | 埃迈海卓尼克工程国际有限责任公司 | Valve gear |
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