CN110005847A - Check (non-return) valve with decompression function - Google Patents
Check (non-return) valve with decompression function Download PDFInfo
- Publication number
- CN110005847A CN110005847A CN201910052012.1A CN201910052012A CN110005847A CN 110005847 A CN110005847 A CN 110005847A CN 201910052012 A CN201910052012 A CN 201910052012A CN 110005847 A CN110005847 A CN 110005847A
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- Prior art keywords
- valve sleeve
- return
- outer valve
- check
- valve
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- 230000006837 decompression Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 230000008094 contradictory effect Effects 0.000 claims description 46
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 abstract description 13
- 238000000429 assembly Methods 0.000 abstract description 13
- 239000008399 tap water Substances 0.000 abstract description 2
- 235000020679 tap water Nutrition 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 230000008014 freezing Effects 0.000 description 8
- 238000007710 freezing Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000008400 supply water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of check (non-return) valves with decompression function, including non-return valve module, non-return valve module includes inner valve sleeve, seal, reset spring and limition orientation seat, it is characterized in that: further including outer valve sleeve, non-return valve module is mounted in outer valve sleeve, inner valve sleeve and outer valve sleeve are slidingly sealed cooperation, outer valve sleeve lower end is internally provided with inward flange, it is provided between inward flange and non-return valve module by the non-return valve module pre-compressed spring that downstream water discharging direction compresses, the locating part that the restricted seal of setting is moved to outer valve sleeve upstream water inlet direction in the outer valve sleeve in internal valve sleeve downstream water inlet direction, the locking piece for preventing non-return valve module abjection outer valve sleeve is provided in the outer valve sleeve of check (non-return) valve assemblies downstream water discharging direction.The check (non-return) valve with decompression function, structure is relatively simple, small volume, can be mounted on water tap water inlet and realize non-return and decompression function.
Description
Technical field
The present invention relates to the component in tap, in particular to a kind of check (non-return) valve with decompression function.
Background technique
Most taps with temperature adjustment function all can be in cold water inlet and/or water inlet of hot water currently on the market
Check (non-return) valve is set, crossfire occurs between hot and cold water for preventing.Check (non-return) valve can only allow water flow one-way flow, so working as tap
When being in close state, the water between flow valve and check valve is plunged to death in tap.When ambient temperature be reduced to freezing point with
When lower, can gradually it be frozen by the water plunged to death in tap, and volume will increase when water freezing, so as to cause tap flow valve
Hydraulic pressure increases in runner between check valve.When the hydraulic pressure in runner increases to a certain extent, runner, check (non-return) valve or stream
Measuring valve can be bad by support.In contrast, this problem is then not present in general tap, since water supply line is embedded in wall mostly
Interior, wall has certain heat insulation effect so that water temperature in pipeline can be higher than the water temperature of tap inner cavity and in freezing point with
On.Since tap is directly connected to longer water supply line, reduced even at the water temperature of the tap inner cavity of wall outer side
And when freezing, it is very small that ice fraction water becomes the ratio shared for entire water supply line of increased volume when ice,
So the hydraulic pressure in entire water supply line not will increase dramatically, also there is no crack phenomenon accordingly.So existing band temperature adjustment
In addition generally all pressure relief device can be separately provided while check (non-return) valve (i.e. check valve) is arranged in water inlet in the tap of function, with
Tap is by bursting by freezing when temperature being avoided to reduce.
Such as 201611017257 .3 of Patent No., shown in a kind of entitled Chinese patent of antifreezing faucet, the tap
Check valve is separately installed on two water inlets of ontology, while in order to avoid being trapped in the water freezing between check valve and flow valve
When tap is damaged, a protecting crust to connect with upstream chamber is bolted on faucet body, in the protecting crust
Equipped with an antifreeze air bag.When the indoor water freezing of upstream cavity, antifreeze air bag is strutted by hydraulic pressure, is made to generate certain pressure release
With.Although the tap can play antifreeze effect in use, also suffer from certain drawbacks: 1, check valve and letting out
Pressure device is to be provided separately, so as to cause carrying out that man-hour requirement is added to process two mounting holes to tap, so as to cause the fire hose
Head main body complicated integral structure, it is more troublesome when processing, increase production cost；2, it needs in assembling by check valve and pressure release
Device is respectively installed on two mounting holes, this will increase the processing cost and assembly cost of tap；3, antifreeze air bag is swollen
Swollen space is limited, and when the water freezing between check (non-return) valve and flow valve, the hydraulic pressure at this still will increase biggish value.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of check (non-return) valve with decompression function,
Structure is relatively simple, small volume, can be mounted on water tap water inlet and realize non-return and decompression function.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of stopping with decompression function
Inverse valve, including non-return valve module, non-return valve module include inner valve sleeve, seal, reset spring and limition orientation seat, feature
It is: further includes outer valve sleeve, non-return valve module is mounted in outer valve sleeve, and inner valve sleeve and outer valve sleeve are slidingly sealed cooperation, on inner valve sleeve
Trip water inlet direction outer valve sleeve in be provided with by inner valve sleeve downstream water discharging direction compress pre-compressed spring, internal valve sleeve downstream into
It is additionally provided in the outer valve sleeve in water direction and limits the locating part that seal is moved to outer valve sleeve upstream water inlet direction, under pre-compressed spring
End is contradicted with outer valve sleeve lower part, and being provided in the outer valve sleeve of check (non-return) valve assemblies downstream water discharging direction prevents non-return valve module abjection outer
The locking piece of valve pocket.
Through the above technical solutions, water flow flows downstream from check (non-return) valve updrift side in normal use process,
In the process, hydraulic pressure acts on the end face of seal, and seal is pushed to overcome the elastic force of reset spring under non-return valve module
Roam all around the would is to movement, so that non-return valve module be made normally to open, so that water flow is normally flowed through non-return valve module, and then be flowed into
In thermostatic valve core.When ambient temperature, which reduces, generates icing phenomenon in the runner caused between check (non-return) valve and flow valve, check (non-return) valve
The hydraulic pressure in assemblies downstream direction gradually rises.When the hydraulic pressure of downstream direction is greater than the preset pressure of pre-compressed spring, non-return valve group
Part overcomes the elastic force entirety upstream direction of pre-compressed spring to move under the action of the hydraulic pressure of downstream, to make the runner of downstream direction
Volume increases, and reaches and slows down the increased effect of hydraulic pressure.Outer valve sleeve setting inner valve sleeve can be played on the outside of inner valve sleeve limit and
Guiding role slides inner valve sleeve along outer valve sleeve inner wall.Inner valve sleeve and outer valve sleeve sealing cooperation, can be to avoid between the two
Gap leaks, and causes cold water or hot water by two since pressure difference exists between hot water or cold water when avoiding working normally
Crossfire occurs for the gap between person.
When check (non-return) valve component movement to a certain extent when movement (be also possible to just start upstream direction), locating part limit
Seal processed continues to slide to inner valve sleeve updrift side, and locating part does not limit the movement of inner valve sleeve at the same time, if
The hydraulic pressure in check (non-return) valve assemblies downstream direction continues raising inner valve sleeve and remains to continue to move to the updrift side of non-return valve module, thus
So that being detached between seal and inner valve sleeve, so that the water energy of check (non-return) valve assemblies downstream enough passes through non-return valve module and enters
Letting out for check (non-return) valve assemblies downstream runner is realized to reduce the water in check (non-return) valve assemblies downstream runner in check (non-return) valve upstream
Pressure, avoids pipeline or the valve body weakness between non-return valve module and flow valve from being burst by hydraulic pressure.
Outer valve sleeve can play the role of a slide-and-guide to non-return valve module；Pre-compressed spring can limit non-return valve module
Upstream water inlet direction movement；Pre-compressed spring lower end and outer valve sleeve lower part contradict, and can be supported to pre-compressed spring.It keeps away simultaneously
Exempt from non-return valve module to deviate from from outer valve sleeve lower end.
The check valve structure with decompression function is relatively simple, and the volume of each component can also be done relatively small, makes
All components are all mounted in outer valve sleeve, to make the check (non-return) valve with decompression function integrally realize modularization, so that the dress
Setting entirety can be mounted on more conveniently in pipeline or water mixing valve, realize the function of preventing water flow reflux and pressure release.Simultaneously
Water is entered by non-return valve module in the pipeline of non-return valve module upstream when pressure release, will not generate water leakage phenomenon.To keep away
Exempt to freeze when water is discharged by discharge outlet in discharge outlet, influences the lasting pressure release of the device.In addition, pipeline and water system phase
Even, thus in contrast the cavity of non-return valve module updrift side be capable of the volume of received water be it is unlimited, so as to compared with
Guarantee that the water in check (non-return) valve assemblies downstream direction there are enough spaces to be discharged well.
Preferably, the locating part includes pedestal portion, and the positive stop end extended to seal, pedestal are provided in the middle part of pedestal portion
Water through-hole was additionally provided in portion.
Through the above technical solutions, seal and positive stop end when non-return valve module is integrally moved to inner valve sleeve updrift side
The distance between can be gradually reduced.Locating part limit and outer valve sleeve lower part, when seal end face and positive stop end conflict, locating part
Seal is prevented to continue to move to inner valve sleeve updrift side, to play position-limiting action.If check (non-return) valve assemblies downstream direction at this time
Hydraulic pressure continue to increase, inner valve sleeve continues up roam all around the would to movement, to be detached from conflict state, at this time non-return valve group with seal
The high pressure water of part downstream direction can enter non-return valve module updrift side by the gap between inner valve sleeve and seal, from
And play the role of pressure release.Positive stop end and pedestal portion can be fixed by the way of being wholely set, this outer seat portion and limit
End is also possible to split settings, then by being spirally connected or being clamped or the modes such as grafting or welding are fixed on pedestal
In portion.The setting for crossing water through-hole can contradict to avoid pedestal when pressure release and inward flange causes the water inlet of outer valve sleeve to be blocked, shadow
Ring normal pressure release.
Preferably, outer valve sleeve lower part is provided with inward flange, and pre-compressed spring lower end is contradicted in interior lug upper surface, and locating part is put
It sets in lug upper surface；Or outer valve sleeve lower part is provided with inward flange, pre-compressed spring lower end is contradicted in pedestal portion upper surface, pedestal
Lower surface is pressed on inward flange.
Through the above technical solutions, pre-compressed spring is directly or indirectly pressed on inward flange, pre-compressed spring can be made
Preferable support effect is obtained, while when pre-compressed spring is pressed on pedestal portion upper surface, pedestal portion can be pressed on convex
On edge, to play the fixed function for locating part.
Preferably, the locating part and outer valve sleeve are integrally formed, and pre-compressed spring is pressed on pedestal portion upper surface；Or it is described
Locating part is connected to outer valve sleeve inner wall, pre-compressed spring by the modes such as being spirally connected or welding or be clamped or be interference fitted
It is pressed on pedestal portion upper surface；Or the outer valve sleeve lower part is provided with inward flange, locating part by being spirally connected or weld or
The modes such as person's clamping or interference fit are connected to inward flange medial surface, and pre-compressed spring is pressed on pedestal portion upper surface.
Through the above technical solutions, the connection and fixed form of a variety of locating parts and outer valve sleeve are provided, it can be according to outer
The practical selection of valve pocket and processing method flexibly determine the connection relationship used between the two, and locating part is made to be connectable to outer valve
It puts on, while pre-compressed spring is effectively supported.
Locating part and outer valve sleeve are integrally formed, and outer valve sleeve can integrally pass through injection molding, casting, 3D printing or powder metallurgy
It processes to obtain etc. integrally formed technology, so that outer valve sleeve and locating part are linked together, such outer valve sleeve processing is more convenient,
One-piece parts quantity can obtain it is less, after assembling pre-compressed spring lower end directly with locating part upper surface contradict, make pre-compressed spring
It is supported.
Then locating part can also make to be connected between the two by welding with outer valve sleeve split settings, or
Person opens up jack on seal end face to be made to carry out grafting between the two, or is opened up card slot on seal end face, limited
Part end setting fixture block is clamped the two, or opens up threaded hole, in the outer spiral shell of locating part end processing in seal end face
Line is threadedly coupled the two.In addition, can also be attached between the two using other modes, so that locating part be made to be fixed.
Preferably, the locating part is connected on the end face of seal updrift side, and conflict is provided in outer valve sleeve lower end
What part, contradictory piece and locating part lower end contradicted.
Through the above technical solutions, locating part is fixed on the end face of seal, after seal is fixed, locating part is also to obtain the final product
To fixation, locating part is fixed without set parts other in outer valve sleeve and connection structure, so as to preferable
Ground simplifies the overall structure of the check (non-return) valve.The setting of contradictory piece can be used for contradicting locating part, to seal and limit
The whole-body-motion range at position end is limited, and so that seal is limited when sliding to inner valve sleeve updrift side, is reached and let out
The effect of pressure.
Preferably, the locating part be integrally formed on seal or the locating part by be spirally connected or grafting,
Or the modes such as clamping or welding are connected on seal.
Through the above technical solutions, locating part can connect according to the selection of material using different methods and seal is fixed
It connects, to locating part is fixed on seal end face more conveniently, realizes connection between the two.It can be close when grafting
Jack is set on envelope body, then locating part is inserted into jack.When clamping, card slot can be opened up on seal end face, and
Locating part end is snapped onto card slot afterwards.
Preferably, it is the abutting portion limited to locating part in the middle part of the contradictory piece, was additionally provided with water in contradictory piece
Through-hole.
Through the above technical solutions, abutting portion is in the middle part of contradictory piece, it is located at below locating part, when locating part is with close
Envelope body intakes direction movement Shi Nengyu contradictory piece conflict upstream to play position-limiting action, keeps decompression function normally real
It is existing.The setting for crossing water through-hole can separate water flow to avoid the presence of contradictory piece.
Preferably, the contradictory piece and outer valve sleeve are integrally formed, and pre-compressed spring is pressed on contradictory piece upper surface；Or it is described
By being clamped or welding or be spirally connected or the modes such as grafting are connected to outer valve sleeve inner wall, pre-compressed spring compresses contradictory piece
In contradictory piece upper surface；Or the outer valve sleeve lower part is provided with inward flange, contradictory piece lower part and inward flange contradict, pre-compressed spring
It is pressed on inward flange upper surface or contradictory piece upper surface；Or the outer valve sleeve lower part is provided with inward flange, contradictory piece passes through
Clamping or welding are spirally connected or the modes such as grafting are connected to inward flange medial surface, and pre-compressed spring is pressed on inward flange
Surface or contradictory piece upper surface.
Through the above technical solutions, it is direct with outer valve sleeve to provide various ways contradictory piece under the premise of realizing pressure release
Connection, mounting means, so as to can neatly select not according to the selection of outer valve sleeve and contradictory piece and processing method difference
Same structure improves production efficiency to simplify production and assembling process more conveniently.Multiple pre-compressed springs are also provided simultaneously
Conflict position, seen one according to the flexible in size of spring determine contradict position.
Contradictory piece can be with outer valve one, before the two using identical material, injection molding, cast or pass through 3D
The modes such as printing obtain, to reduce the number of parts of entire check (non-return) valve, ease of assembly.
Contradictory piece and outer valve sleeve can also pass through the connection types such as screw thread, clamping, welding, grafting with split settings, contradictory piece
It is fixed on outer valve sleeve.
Preferably, outer valve sleeve upper end end and/or lower end are provided with the thread segment for connection.
Through the above technical solutions, thread segment, which is arranged, conveniently can be connected to pipe for the device in outer valve sleeve end
The water inlet in road and temperature adjusting water tap, to realize installation.Correspondingly, the device be mounted on temperature adjusting water tap and pipeline it
Between, without in addition opening up installation cavity and mounting hole in tap main body, so as to greatly simplify the structure of tap main body, together
When also facilitate the maintenance in later period to replace.The settable thread segment in the both ends of outer valve sleeve, to conveniently realize connection.
Preferably, outward flange is provided on the outer wall of the outer valve sleeve upper end and/or lower end.
Through the above technical solutions, the setting of outward flange allow installation when first by the nut with defining flange from outer
Valve pocket upper end is nested into outer valve sleeve, keeps outward flange and the defining flange on the inside of nut inconsistent, then by outer valve sleeve upper end with
The water inlet of temperature adjusting water tap connects, and connect finally by nut with the external screw thread on water supply line, so that the surface of outward flange
Sealing is pushed against between the end of water supply line, while is fixed to tap on water supply line.
Preferably, the external screw thread for connection is provided on the outward flange.
Through the above technical solutions, installation cavity can be arranged in the runner of tap, pass through the device on outward flange
External screw thread be fixed in runner so that tap is whole more succinct.
Preferably, seal groove is offered between the inner valve sleeve and outer valve sleeve, and sealing ring is installed in seal groove.
Through the above technical solutions, the sealing performance between outer valve sleeve and inner valve sleeve can be promoted preferably, make outer valve sleeve
Without by gap between the two reaching sealing effect between inner valve sleeve, the processing so as to reduce between the two is wanted
It asks, reduces production cost.
Preferably, it is provided with seal groove on the outside of the outer valve sleeve, sealing ring is installed in seal groove.
Through the above technical solutions, when outer valve sleeve is connected with other component, the close of outer valve sleeve and junction can be improved
Sealing property avoids that drainage occurs.
Compared with prior art, the invention has the benefit that 1, by the way that outer valve sleeve, pre- is arranged on the outside of non-return valve module
Pressing spring and locating part, when check (non-return) valve assemblies downstream hydraulic pressure can be made to be increased to the preset pressure greater than pre-compressed spring, check (non-return) valve
Component can integrally be moved along outer valve sleeve to non-return valve module updrift side, to increase non-return valve module to a certain extent
The volume in downstream.When the hydraulic pressure in check (non-return) valve assemblies downstream direction reaches a certain level, and contradicts locating part and seal, limit
Part can limit seal and continue to move but do not limit to check (non-return) valve updrift side inner valve sleeve to non-return valve module upstream direction
Movement contradicts so that seal and inner valve sleeve be made to be detached from, so that the water energy in check (non-return) valve downstream is entered check (non-return) valve upstream, to obtain
Pressure release avoids the valve body of check (non-return) valve assemblies downstream or pipeline from being bursting at the collision, and bursting by freezing phenomenon occurs.2, the device is with non-return function
Can while pressure release can be carried out to the water of downstream direction, the two be wholely set, and can be connected directly between tap into
It between the mouth of a river and pipeline, is specifically designed without the whole runner to tap, so as to simplify the whole of tap main body
Body structure, while it can be attached installation more conveniently.3, when the pressure release pressure that the hydraulic pressure in the check (non-return) valve downstream is more than setting
When power, the water in check (non-return) valve downstream enters check (non-return) valve downstream by check (non-return) valve, to realize pressure release.Due to pipeline and water system
It is connection, so biggish drainage space can be obtained, it is even unlimited.It will not be led simultaneously because of water from leakage hole exclusion
Cause the subsequent draining of water icing effect at leakage hole.
Detailed description of the invention
Fig. 1 is the schematic cross-section of embodiment, and wherein arrow is the water (flow) direction of (non-pressure release state) when working normally；
Fig. 2 is the explosive view of embodiment；
Fig. 3 is the schematic cross-section of outer valve sleeve；
Fig. 4 is the perspective view at the place of locating part；
Fig. 5 is the schematic cross-section of non-return valve module；
Fig. 6 is the schematic cross-section of inner valve sleeve；
Fig. 7 is the perspective view for limiting guide holder；
Fig. 8 is the connection schematic diagram when device uses in embodiment one；
Fig. 9 is the schematic cross-section after embodiment one is installed；
Figure 10 is the schematic cross-section of embodiment two；
Figure 11 is the perspective view at the visual angle of outer valve upper end in embodiment two；
Figure 12 is the schematic cross-section of embodiment three；
Figure 13 is the schematic cross-section of example IV；
Figure 14 is the schematic cross-section of embodiment five；
Figure 15 is the schematic cross-section of embodiment six；
Figure 16 is the perspective view of locating part in embodiment six；
Figure 17 is the schematic cross-section of embodiment seven；
Figure 18 is the perspective view of locating part in embodiment seven.
Appended drawing reference: 1, outer valve sleeve；11, hexagon ring；12, external screw thread；13, sealing ring；14, circlip；15, pre-compressed spring；
16, outward flange；17, inward flange；18, seal groove；19, jump-ring slot；110, thread segment；111, contradictory piece；112, partition；114,
Screw thread；115, spring supporting face；2, non-return valve group, part；21, inner valve sleeve；22, limition orientation seat；221, guide ring；222, it is oriented to
Hole；223, spoke；23, reset spring；24, sealing ring；25, sealing ring；261, limiting section；262, sealing surface；27, sealing ring
Slot；3, locating part；31, positive stop end；32, intercommunicating pore；33, pedestal portion；34, floor；35, screw thread；4, seal；41, guide rod；
5, upstream water inlet direction；6, downstream water discharging direction；7, nut；71, defining flange；8, tap main body；9, water inlet.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
As shown in Fig. 1 ~ 7, a kind of check (non-return) valve with decompression function, including outer valve sleeve 1 and be arranged in outer valve sleeve 1 and can
Along the non-return valve module 2 in axial sliding of outer valve sleeve 1.As shown in Fig. 1 ~ 3, outer valve sleeve 1 is in the sleeve-shaped of both ends open, outer valve sleeve 1
It is water inlet (namely upstream water inlet direction 5 of non-return valve module 2) when lower end works normally, is water outlet when upper end works normally
(namely downstream water discharging direction 6 of non-return valve module 2).1 lower end of outer valve sleeve is provided with collar flange, and it is outer that collar flange is divided into protrusion
The inward flange 17 of 1 inner wall of valve pocket and the outward flange 16 of protrusion 1 outer wall of outer valve sleeve.It is provided on the outside of 1 upper end of outer valve sleeve and is used for and water
The thread segment 110 that the water inlet 9 of tap main body 8 connects.Inward flange 17 is provided centrally with hexagon ring 11, hexagon ring 11 can with it is interior
Die nut cooperation rotation outer valve sleeve 1, so that outer valve sleeve 1 be made to be connected to water inlet 9 by thread segment 110.The outer wall of outer valve sleeve 1
On be provided with seal groove 18, be equipped in seal groove 18 for 9 surface of water inlet contradict sealing sealing ring 13.Outer valve
It covers 1 upper end and is provided with jump-ring slot 19, circlip 14 is installed in jump-ring slot 19, be limited in so that non-return valve module 2 is whole
Sliding, will not deviate from out of outer valve sleeve 1 in outer valve sleeve 1.
As shown in Fig. 5 ~ 7, non-return valve module 2 includes inner valve sleeve 21, is provided with seal groove 27 on 21 outer wall of inner valve sleeve, close
The sealing ring 25 that sealing is contradicted with 1 inner wall of outer valve sleeve is installed in seal slot 27.21 lower end of inner valve sleeve is internally provided with a cone
The sealing surface 262 of shape and an annular limiting section 261.Seal 4 is installed in inner valve sleeve 21,4 lower end surface of seal with
Stop collar 261 contradicts, and 4 lower end side of seal is arranged with sealing ring 24, the sealing ring 24 be in 262 inside of sealing surface and with it is close
Cover 262 contradicts sealing.4 top of seal has been wholely set guide rod 41, and 41 outer sheath of guide rod is equipped with reset spring 23, leads
It is plugged in limition orientation seat 22 to 41 upper end of bar, limition orientation seat 22 is mounted at 21 upper end opening of inner valve sleeve.Limition orientation
Seat 22 is provided centrally with guide ring 221, and guide ring 221 passes through three spokes 223 and 22 integrally connected of limition orientation seat.Guide ring
221 can be fixed on 21 upper end of inner valve sleeve by way of buckling or being interference fitted.Guide rod 41 is plugged in guide ring 221
In the pilot hole 222 of the heart.23 upper end of reset spring and 221 rear surface of guide ring contradict, and seal 4 is made to keep supporting with valve seat 26
Touch the state of sealing.
As depicted in figs. 1 and 2, finite place piece 3 is installed, locating part 3 includes seat in the outer valve sleeve 1 of non-return 2 lower end of valve module
Body portion 33 and the positive stop end 31 that 33 middle part of pedestal portion is set and is extended to 4 direction of seal.It is provided in pedestal portion 33 multiple
For the intercommunicating pore 32 for water flowing.31 outer circumference of positive stop end is evenly equipped with 3 pieces of floors, floor 34 and positive stop end 31 and pedestal portion
33 are wholely set.Pre-compressed spring 15 is additionally provided between locating part 3 and inner valve sleeve 21.Under 15 upper end of pre-compressed spring and inner valve sleeve 21
Surface contradicts, and the spring supporting face 115 of 15 lower end of pre-compressed spring and 33 upper surface of pedestal portion contradicts.Pre-compressed spring 15 is to inner valve sleeve
21 apply a upward power, and by non-return valve module 2, downstream water discharging direction is compressed.3 lower end surface of locating part is interior with outer valve sleeve 1
17 upper surface of flange contradicts and the support by inward flange 17.
As shown in Figure 8 and Figure 9,1 upper end of outer valve sleeve is first passed through into nut 7 when installation, makes the defining flange 71 of 7 inside of nut
It is contradicted with the outward flange 16 on outer valve sleeve 1, nut 7 is avoided to deviate from from 1 lower end of outer valve sleeve, be then inserted into outer hexagonal spanner outer
In the hexagon ring 11 of valve pocket lower end, and the thread segment 110 of 1 upper end of outer valve sleeve is inserted at the water inlet 9 of tap main body, is led to
Die nut rotation outer valve sleeve 1 is crossed, is threadedly coupled to outer valve sleeve 1 in the water inlet 9 of tap main body 8.Then by nut 7 with
The external screw thread of water supply line end connects, and the end face of the lower end surface and water supply line that make outward flange 16, which contradicts, to be sealed, to realize
Integral installation.
When working properly, i.e., 1 lower end hydraulic pressure of outer valve sleeve is higher than 1 upper end hydraulic pressure of outer valve sleeve, and water flow is from 1 lower end of outer valve sleeve
Then opening, which enters in outer valve sleeve 1, pushes seal 4 that the elastic force of reset spring 23 is overcome to move upwards, to make non-return valve group
Part 2 is in the open state, and water flow can be flowed into inner valve sleeve 21 out of outer valve sleeve 1, and the elastic force of reset spring 23 can be set
It is smaller, to reduce crushing when proper flow.Then water flow is flowed out into from 1 upper end of outer valve sleeve to mixed by inner valve sleeve 21
In the spool of water valve.When the cold water pressure of supply water of water mixing valve is greater than hot water pressure of supply water, and the cold water pressure of supply water and hot water
When the difference of pressure of supply water is in the range that pre-compressed spring 15 is preset, 2 downstream of non-return valve module of water-mixing valve core hot water branch road
The hydraulic pressure in direction is greater than the hydraulic pressure of updrift side, so that pressure suffered by 4 upper surface of seal is greater than institute on lower surface
The pressure being subject to, seal 4 is pressed on valve seat 26 under the action of the elastic force of reset spring 23 and cold water pressure at this time, is made
Non-return valve module 2 is in close state, and cold water cannot enter non-return 2 upstream of valve module by non-return valve module 2, to avoid
The generation of crossfire phenomenon.Cold water pressure of supply water and hot water pressure of supply water can have difference under normal circumstances, but the difference is not
Can be very big, which acts on the elastic force that the power generated on non-return valve module 2 can be less than pre-compressed spring 15, so pre-compressed spring
15 will not be further compressed in this case, and check valve module 2 will not move at this time, and positive stop end 31 will not be with sealing
Body 4 contradicts, and non-return valve module 2 is in close state.And when ambient temperature reduces, cause the non-return valve module 2 and switch valve it
Between sealing pipeline in when icing phenomenon takes place, since volume can expand when water becomes ice, and water is incompressible, this
When this section sealing pipeline in hydraulic pressure can sharply increase, be far longer than the difference of cold water water supply pressure and hot water water supply pressure, at this time
Downstream hydraulic pressure acts on the elastic force that the power generated on non-return valve module 2 can be greater than pre-compressed spring 15, so that non-return valve module 2
It is moved to its updrift side and pre-compressed spring 15 is further compressed.In the process compressed to pre-compressed spring 15
The distance between middle positive stop end 31 and seal 4 are gradually shortened, until seal 4 and 31 end of positive stop end contradict, at this time
Conflict state, check (non-return) valve are detached between seal 4 and inner valve sleeve 21 immediately if the pressure in non-return 2 downstream of valve module continues to increase
The connection of 2 upstream and downstream of component, the water in non-return 2 downstream of valve module enters non-return 2 upstream of valve module at this time, so that it is non-return to reach reduction
The purpose of 2 downstream hydraulic pressure of valve module.The pressure in non-return 2 downstream of valve module reaches maximum value, the water in non-return 2 downstream of valve module at this time
Pressure is in the pressure value and does not continue to rise, so that the valve body and pipeline to non-return 2 downstream of valve module play a protective role.When only
When ice in the runner in inverse 2 downstream of valve module gradually dissolves, pre-compressed spring 15 is moved upwards, by non-return valve module 2 to outer valve sleeve 1
It is pushed at upper end opening, until pre-compressed spring 15 restPoses.If the hydraulic pressure in non-return 2 downstream of valve module is still less than only at this time
The hydraulic pressure of inverse 2 upstream of valve module, the water flow of non-return 2 upstream of valve module can open seal 4, enter non-return 2 downstream of valve module,
Keep hydraulic pressure between the two identical.
Embodiment two,
As shown in FIG. 10 and 11, the difference of embodiment three and embodiment one is 1 one of locating part 3 and outer valve sleeve in embodiment three
Setting, locating part upper surface is spring supporting face 115 at this time, and 15 lower end of pre-compressed spring presses on spring supporting face 115.Limit
Position part 3 and outer valve sleeve 1 can be used plastic material by injection molding method be process, or use casting of metals method into
Row processing, or processed using the method for 3D printing, so that the two is linked together, keep overall structure simpler.
Embodiment three,
As shown in figure 12, the difference of embodiment two and embodiment one is that locating part 3 is connected on 4 lower end surface of seal, this reality
Locating part and seal are applied in example by integrally formed technology to processing between the two, so that the two links together,
It can also be fixed on seal lower end surface using modes such as grafting, threaded connections in actual production, so that positive stop end 31
It is moved with the movement of seal 4.Locating part 3 is in the shape of a rod, locating part 3 pass through inner valve sleeve 21 on water inlet be directed toward upstream into
Water direction.The contradictory piece 111 of circular plate, contradictory piece 111 are set between 1 inward flange 17 of outer valve sleeve and pre-compressed spring 15 simultaneously
The middle part of face locating part 3 is abutting portion 112, multiple water through-holes 32 excessively is also provided in contradictory piece 111, so that water energy is enough
Pass through contradictory piece 111.3 upper surface of contradictory piece is spring supporting face 115, and 15 lower end of pre-compressed spring and spring supporting face 115 contradict.
When locating part 3 is moved to 21 updrift side of inner valve sleeve, the distance that contradictory piece 111 can move down locating part 3 is limited
System, so that seal 4 be enable to be detached from conflict state with inner valve sleeve 21.16 side of outward flange of the outer valve sleeve 1 is provided with simultaneously
External screw thread 12, so that the device can be fixed in pipeline or runner by the external screw thread 12 on outward flange 16.
Example IV,
As shown in figure 13, the difference of example IV and embodiment three is 1 one of contradictory piece 111 and outer valve sleeve in example IV
Setting.Mode can be integrally machined by injection molding, casting, 3D printing or powder metallurgy etc. between the two to be processed.At this time
111 upper surface of contradictory piece is spring supporting face 115
Embodiment five,
As shown in figure 14, the difference of embodiment five and embodiment one is to be not provided with locating part in the outer valve sleeve 1 of example IV.
In this way, when the hydraulic pressure of downstream direction increases, the whole upstream direction movement of non-return valve module 2, to increase downstream side
To volume, to reach pressure release effect, but since inner valve sleeve 21 slides in outer valve sleeve 1, whole sliding distance by
The limitation of 1 inner cavity of outer valve sleeve, the volume that the volume of downstream direction is extended is by biggish limitation, even if by precompressed bullet
Simultaneously, the increased volume in check (non-return) valve assemblies downstream direction is also limited for spring pressure, cannot avoid tap main body 8 or non-return valve group completely
The case where part 2 is cracked.
Embodiment six,
As shown in figs, the difference of embodiment six and example IV is in embodiment six that 111 lateral surface of contradictory piece is arranged
There is screw thread 114, contradictory piece 111 is connect with 1 inner thread of outer valve sleeve by the screw thread 114 of lateral surface and is fixed in outer valve sleeve 1
Wall.Inward flange 17 in 111 lower surface of contradictory piece and 1 lower end of outer valve sleeve contradicts, and 111 upper surface of contradictory piece is spring supporting face
115,15 lower end of pre-compressed spring contradicts on spring supporting face 115.In addition, inward flange can be not provided on outer valve sleeve 1 at this time
17, the screw thread fully relied between 1 inner wall of contradictory piece 111 and outer valve sleeve is attached fixation.
Embodiment seven,
As shown in Figure 17 and Figure 18, the difference of embodiment seven and embodiment one is the pedestal portion 33 of locating part 3 in embodiment seven
Lateral surface is provided with screw thread 35, and locating part 3 is threaded in 1 inner wall of outer valve sleeve by its side, to achieve a fixed connection.
33 upper surface of pedestal portion is spring supporting face 115, and pre-compressed spring 115 is compressed on 115 on spring supporting face.In addition, outer valve sleeve 1
Lower end can be not provided with inward flange 17, and the screw thread 35 that locating part 3 can fully rely on its side is fixed on 1 inner wall of inner valve sleeve.
The above is only exemplary embodiment of the invention, protection scope and is not intended to limit the present invention, this hair
Bright protection scope is determined by the attached claims.
Claims (13)
1. a kind of check (non-return) valve with decompression function, including non-return valve module (2), non-return valve module (2) include inner valve sleeve (21),
Seal (4), reset spring (23) and limition orientation seat (22), it is characterized in that: further include outer valve sleeve (1), non-return valve module (2)
It is mounted in outer valve sleeve (1), inner valve sleeve (21) and outer valve sleeve (1) are slidingly sealed cooperation, inner valve sleeve (21) upstream water inlet direction
It is provided in outer valve sleeve (1) by inner valve sleeve (21) pre-compressed spring (15) that downstream water discharging direction (6) compresses, inner valve sleeve (21)
Limitation seal (4) is additionally provided in the outer valve sleeve (1) in upstream water inlet direction to move to outer valve sleeve (1) upstream water inlet direction (5)
Locating part (3), pre-compressed spring (15) lower end and outer valve sleeve (1) lower part contradict, non-return valve module (2) downstream water discharging direction (6)
Outer valve sleeve (1) in be provided with prevent non-return valve module (2) abjection outer valve sleeve (1) locking piece (14).
2. the check (non-return) valve according to claim 1 with decompression function, it is characterized in that: the locating part (3) includes pedestal
Portion (33) is provided with the positive stop end (31) extended to seal (4) in the middle part of pedestal portion (33), pedestal portion was additionally provided on (33)
Water through-hole (32).
3. the check (non-return) valve according to claim 2 with decompression function, it is characterized in that: in outer valve sleeve (1) lower part is provided with
Flange (17), pre-compressed spring (15) lower end are contradicted in inward flange (17) upper surface, and locating part (3) is placed on table on inward flange (17)
Face；Or outer valve sleeve (1) lower part is provided with inward flange (17), pre-compressed spring (15) lower end is contradicted in pedestal portion (33) upper surface,
Pedestal portion (33) lower surface is pressed on inward flange (17).
4. the check (non-return) valve according to claim 2 with decompression function, it is characterized in that: the locating part (3) and outer valve sleeve
(1) it is integrally formed, pre-compressed spring (15) is pressed on pedestal portion (33) upper surface；Or the locating part (3) by being spirally connected or
Welding or the modes such as clamping or interference fit are connected to outer valve sleeve (1) inner wall, and pre-compressed spring (15) is pressed on pedestal portion
(33) upper surface；Or outer valve sleeve (1) lower part is provided with inward flange (17), locating part (3) by be spirally connected or weld,
Or the modes such as clamping or interference fit are connected to inward flange (17) medial surface, pre-compressed spring (15) is pressed on inward flange
(17) upper surface or pedestal portion (33) upper surface.
5. the check (non-return) valve according to claim 1 with decompression function, it is characterized in that: the locating part (3) be connected to it is close
It seals on the end face of body (4) upstream water inlet direction (5), is provided with contradictory piece (111) in outer valve sleeve (1) lower end, contradictory piece (111)
It is contradicted with locating part (3) lower end.
6. the check (non-return) valve according to claim 5 with decompression function, it is characterized in that: the locating part (3) is integrally formed
On seal (4) or the locating part (3) is by being spirally connected or grafting or the modes such as clamping or welding connect
On seal (4).
7. the check (non-return) valve according to claim 5 with decompression function, it is characterized in that: for limit in the middle part of contradictory piece (111)
Position part (3) abutting portion (112) for being limited was additionally provided with water through-hole (32) in contradictory piece (111).
8. the check (non-return) valve according to claim 7 with decompression function, it is characterized in that: the contradictory piece (111) and outer valve
It covers (1) to be integrally formed, pre-compressed spring (15) is pressed on contradictory piece (112) upper surface；Or the contradictory piece (111) passes through card
It connects or welds or be spirally connected or the modes such as grafting are connected to outer valve sleeve (1) inner wall, pre-compressed spring (15) is pressed on conflict
Part (112) upper surface；Or outer valve sleeve (1) lower part is provided with inward flange (17), contradictory piece (112) lower part and inward flange
(17) it contradicts, pre-compressed spring (15) is pressed on inward flange (17) upper surface or contradictory piece (112) upper surface；Or the outer valve
Set (1) lower part is provided with inward flange (17), and contradictory piece (111) is by being clamped or welding or be spirally connected or the modes such as grafting
It is connected to inward flange (17) medial surface, pre-compressed spring (15) is pressed on table in inward flange (17) upper surface or contradictory piece (111)
Face.
9. the check (non-return) valve according to claim 1 with decompression function, it is characterized in that: the outer valve sleeve (1) upper end end
And/or lower end is provided with the thread segment (110) for connection.
10. there is the check (non-return) valve of decompression function according to claim 1 or described in 9, it is characterized in that: the outer valve sleeve (1) upper end
Outward flange (16) are provided on the outer wall of portion and/or lower end.
11. the check (non-return) valve according to claim 10 with decompression function, it is characterized in that: being arranged on the outward flange (16)
There is the external screw thread (12) for connection.
12. the check (non-return) valve according to claim 1 with decompression function, it is characterized in that: the inner valve sleeve (21) and outer valve
It is offered seal groove (27) between set (1), sealing ring (25) is installed in seal groove (27).
13. the check (non-return) valve according to claim 1 with decompression function, it is characterized in that: being provided on the outside of the outer valve sleeve
Seal groove (18), seal groove (18) is interior to be equipped with sealing ring (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111466889 | 2018-09-29 | ||
| CN201811146688 | 2018-09-29 |
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| CN110005847A true CN110005847A (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910052012.1A Pending CN110005847A (en) | 2018-09-29 | 2019-01-21 | Check (non-return) valve with decompression function |
| CN201920091354.XU Active CN209671683U (en) | 2018-09-29 | 2019-01-21 | Check (non-return) valve with decompression function |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920091354.XU Active CN209671683U (en) | 2018-09-29 | 2019-01-21 | Check (non-return) valve with decompression function |
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| CN (2) | CN110005847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021214640A1 (en) | 2021-12-17 | 2023-06-22 | Vitesco Technologies GmbH | Check valve and use of the same in a fluid system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005847A (en) * | 2018-09-29 | 2019-07-12 | 台州市国人温控卫浴科技有限公司 | Check (non-return) valve with decompression function |
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| CN209671683U (en) * | 2018-09-29 | 2019-11-22 | 台州市国人温控卫浴科技有限公司 | Check (non-return) valve with decompression function |
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- 2019-01-21 CN CN201920091354.XU patent/CN209671683U/en active Active
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| JPH0594587U (en) * | 1992-05-22 | 1993-12-24 | 自動車機器株式会社 | Check valve |
| JP2003148265A (en) * | 2001-11-14 | 2003-05-21 | Piolax Inc | In-tank valve device |
| CN201531657U (en) * | 2009-10-29 | 2010-07-21 | 广东诺科冷暖设备有限公司 | Water flow check valve |
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Cited By (1)
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| DE102021214640A1 (en) | 2021-12-17 | 2023-06-22 | Vitesco Technologies GmbH | Check valve and use of the same in a fluid system |
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| CN209671683U (en) | 2019-11-22 |
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