CN209671683U - Check (non-return) valve with decompression function - Google Patents
Check (non-return) valve with decompression function Download PDFInfo
- Publication number
- CN209671683U CN209671683U CN201920091354.XU CN201920091354U CN209671683U CN 209671683 U CN209671683 U CN 209671683U CN 201920091354 U CN201920091354 U CN 201920091354U CN 209671683 U CN209671683 U CN 209671683U
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- Prior art keywords
- valve sleeve
- return
- outer valve
- valve
- check
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
Originally practical to disclose a kind of check (non-return) valve 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
This practical component being related 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.
Utility model content
In view of the deficienciess of the prior art, this practical purpose is 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.
This practical above-mentioned technical purpose 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 way of 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 mode of person's clamping or interference fit is 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 clamping or the mode welded 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
Contradictory piece be clamped or weld or be spirally connected or grafting by way of be connected to outer valve sleeve inner wall, pre-compressed spring compresses
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 mode of grafting is 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 mode of printing obtains, 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 two is offered between the inner valve sleeve and outer valve sleeve, and sealing is installed in seal groove two
Circle two.
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 one on the outside of the outer valve sleeve, sealing ring one is installed in seal groove one.
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, this practical has the beneficial effect 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 one；14, circlip；15, precompressed bullet
Spring；16, outward flange；17, inward flange；18, seal groove one；19, jump-ring slot；110, thread segment；111, contradictory piece；112, it contradicts
Portion；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, pilot hole；223, spoke；23, reset spring；24, sealing ring；25, sealing ring two；261, limiting section；262, sealing surface；
27, seal groove two；3, locating part；31, positive stop end；32, intercommunicating pore；33, pedestal portion；34, floor；35, screw thread；4, it seals
Body；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
It is described in further detail below in conjunction with attached drawing to originally practical.
This specific embodiment is only the explanation practical to this, is not the limitation practical to this, 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 practical scope of the claims.
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 1, be equipped in seal groove 1 for 9 surface of water inlet contradict sealing sealing ring one
13.1 upper end of outer valve sleeve is provided with jump-ring slot 19, and circlip 14 is equipped in jump-ring slot 19, so that the whole quilt of non-return valve module 2
It is limited in sliding in outer valve sleeve 1, will not be deviate from out of 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 2 27 on 21 outer wall of inner valve sleeve,
The sealing ring 2 25 that sealing is contradicted with 1 inner wall of outer valve sleeve is installed in seal groove 2 27.21 lower end of inner valve sleeve is internally provided with
The sealing surface 262 of one taper and an annular limiting section 261.Seal 4,4 lower end of seal are installed in inner valve sleeve 21
End face and stop collar 261 contradict, and 4 lower end side of seal is arranged with sealing ring 24, which is in 262 inside of sealing surface
And it contradicts and seals with sealing surface 262.4 top of seal has been wholely set guide rod 41, and 41 outer sheath of guide rod, which is equipped with, resets bullet
Spring 23,41 upper end of guide rod are plugged in limition orientation seat 22, and limition orientation seat 22 is mounted at 21 upper end opening of inner valve sleeve.Limit
Position guide holder 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 guiding
In the pilot hole 222 at 221 center of ring.23 upper end of reset spring and 221 rear surface of guide ring contradict, and make seal 4 and valve seat
26 keep contradicting 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.During being compressed to pre-compressed spring 15
The distance between positive stop end 31 and seal 4 are gradually shortened, until seal 4 and 31 end of positive stop end contradict, if at this time
The pressure in non-return 2 downstream of valve module continues to increase then is detached from conflict state, non-return valve group immediately between seal 4 and inner valve sleeve 21
The connection of 2 upstream and downstream of part, the water in non-return 2 downstream of valve module enters non-return 2 upstream of valve module at this time, to reach reduction check (non-return) valve
The purpose of 2 downstream hydraulic pressure of component.The pressure in non-return 2 downstream of valve module reaches maximum value, the hydraulic pressure in non-return 2 downstream of valve module at this time
It is in the pressure value not continuing to rise, so that the valve body and pipeline to non-return 2 downstream of valve module play a protective role.When non-return
When ice in the runner in 2 downstream of valve module gradually dissolves, pre-compressed spring 15 is moved upwards, by non-return valve module 2 on outer valve sleeve 1
It is pushed at end opening, until pre-compressed spring 15 restPoses.If the hydraulic pressure in non-return 2 downstream of valve module is still less than non-return at this time
The water flow of the hydraulic pressure of 2 upstream of valve module, non-return 2 upstream of valve module can open seal 4, enter non-return 2 downstream of valve module, make
Hydraulic pressure between the two is identical.
Embodiment two,
As shown in FIG. 10 and 11, the difference of embodiment three and embodiment one is locating part 3 and outer valve sleeve 1 in embodiment three
It is wholely set, locating part upper surface is spring supporting face 115 at this time, and 15 lower end of pre-compressed spring presses in spring supporting face 115
On.Locating part 3 and outer valve sleeve 1 can be used plastic material and be process by the method being molded, or use casting of metals
Method is processed, or is processed using the method for 3D printing, so that the two is linked together, makes overall structure more
Simply.
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,
In the present embodiment locating part and seal by integrally formed technology to processing between the two so that the two is connected to one
It rises, 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 move with the movement of seal 4.Locating part 3 is in the shape of a rod, and locating part 3 passes through the water inlet on inner valve sleeve 21 and is directed toward upstream
Intake direction.The contradictory piece 111 of circular plate, contradictory piece are set between 1 inward flange 17 of outer valve sleeve and pre-compressed spring 15 simultaneously
The middle part of 111 face locating parts 3 is abutting portion 112, multiple water through-holes 32 excessively is also provided in contradictory piece 111, so that water
Contradictory piece 111 can be passed through.3 upper surface of contradictory piece is spring supporting face 115,15 lower end of pre-compressed spring and spring supporting face 115
It contradicts.When locating part 3 is moved to 21 updrift side of inner valve sleeve, contradictory piece 111 can to the distance that locating part 3 moves down into
Row limitation, 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 set simultaneously
It is equipped with 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 contradictory piece 111 and outer valve sleeve 1 in example IV
It is wholely set.Mode can be integrally machined by injection molding, casting, 3D printing or powder metallurgy etc. between the two to be processed.
111 upper surface of contradictory piece is spring supporting face 115 at this time.
Embodiment five,
As shown in figure 14, the difference of embodiment five and embodiment one is to be not provided in the outer valve sleeve 1 of example IV limited
Position part.In this way, when the hydraulic pressure of downstream direction increases, the whole upstream direction movement of non-return valve module 2, thus under increasing
Roam all around the would to volume, to reach pressure release effect, but since inner valve sleeve 21 slides in outer valve sleeve 1, whole sliding distance
It is limited by 1 inner cavity of outer valve sleeve, the volume that the volume of downstream direction is extended is by biggish limitation, even if by pre-
Simultaneously, the increased volume in check (non-return) valve assemblies downstream direction is also limited for pressing spring pressure, cannot avoid tap main body 8 or non-return completely
The case where valve module 2 is cracked.
Embodiment six,
As shown in figs, the difference of embodiment six and example IV is 111 lateral surface of contradictory piece in embodiment six
It is provided with 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 on outer valve sleeve
1 inner 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 branch
Support face 115,15 lower end of pre-compressed spring contradict on spring supporting face 115.In addition, in being not provided on outer valve sleeve 1 at this time
Flange 17, the screw thread fully relied between 1 inner wall of contradictory piece 111 and outer valve sleeve are attached fixation.
Embodiment seven,
As shown in Figure 17 and Figure 18, the difference of embodiment seven and embodiment one is the pedestal of locating part 3 in embodiment seven
33 lateral surface of portion is provided with screw thread 35, and locating part 3 is threaded in 1 inner wall of outer valve sleeve by its side, to realize fixation
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
1 lower end of valve pocket 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 in inner valve sleeve 1
On wall.
The above is only this practical exemplary embodiment, not for this practical protection scope of limitation, this reality
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
The mode of welding or clamping or interference fit is 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 clamping or the mode being interference fitted 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) be spirally connected or grafting or clamping or welding by way of 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 (111) upper surface；Or the contradictory piece (111) passes through card
It connects or welds or be spirally connected or the mode of grafting is connected to outer valve sleeve (1) inner wall, pre-compressed spring (15) is pressed on conflict
Part (111) upper surface；Or outer valve sleeve (1) lower part is provided with inward flange (17), contradictory piece (111) lower part and inward flange
(17) it contradicts, pre-compressed spring (15) is pressed on inward flange (17) upper surface or contradictory piece (111) upper surface；Or the outer valve
Set (1) lower part be provided with inward flange (17), contradictory piece (111) be clamped or weld or be spirally connected or grafting by way of
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
Seal groove two (27) is offered between set (1), and sealing ring two (25) is installed in seal groove two (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 one (18), seal groove one (18) is interior to be equipped with sealing ring one (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111466889 | 2018-09-29 | ||
| CN201811146688 | 2018-09-29 |
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| CN209671683U true CN209671683U (en) | 2019-11-22 |
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| 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 |
| CN201910052012.1A Pending CN110005847A (en) | 2018-09-29 | 2019-01-21 | Check (non-return) valve with decompression function |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910052012.1A Pending CN110005847A (en) | 2018-09-29 | 2019-01-21 | Check (non-return) valve with decompression function |
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Cited By (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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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2589025Y2 (en) * | 1992-05-22 | 1999-01-20 | 自動車機器株式会社 | Check valve |
| JP3871918B2 (en) * | 2001-11-14 | 2007-01-24 | 株式会社パイオラックス | Valve device for in-tank |
| CN201531657U (en) * | 2009-10-29 | 2010-07-21 | 广东诺科冷暖设备有限公司 | Water flow check valve |
| CN202109046U (en) * | 2011-05-18 | 2012-01-11 | 珠海市舒丽玛温控卫浴设备有限公司 | Safety valve with a pressure limiting device |
| CN204372257U (en) * | 2014-12-16 | 2015-06-03 | 浙江华益机械有限公司 | A kind of dynamically stable-pressure device |
| CN108131473B (en) * | 2018-01-31 | 2024-08-30 | 浙江神太太阳能股份有限公司 | One-way valve with built-in pressure relief function |
| 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 |
-
2019
- 2019-01-21 CN CN201920091354.XU patent/CN209671683U/en active Active
- 2019-01-21 CN CN201910052012.1A patent/CN110005847A/en active Pending
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| 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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