CN207064684U - For sealing the still mechanism and sealing water valve of water valve - Google Patents

Abstract

The utility model discloses a kind of still mechanism for being used to seal water valve, including the valve body for forming sealing water valve shell, it is placed with successively along water inlet fluid flow direction in body cavity and enters waterstop ring and still for forming fixed fluid passage for bear water feeding pressure by inner ring surface, entering waterstop ring, gland is in fitting on the step surface of valve inleting water mouth and radially in body cavity side wall vertically, and still is fastened in body cavity side wall and gland is in entering on waterstop ring；Or edge water inlet fluid flow direction lays the still for forming fixed fluid passage in body cavity, still is fastened in body cavity side wall and gland is on the step surface of valve inleting water mouth, and at least one set of water stopping trough and the O-ring seals in water stopping trough are provided between still and step surface.Total is simple, good airproof performance, is not easily susceptible into water water erosion, service life length.

Description

For sealing the still mechanism and sealing water valve of water valve

Technical field

Penstock technical field of structures is the utility model is related to, especially, is related to a kind of still machine for being used to seal water valve Structure.In addition, the utility model further relate to it is a kind of including it is above-mentioned be used for seal water valve still mechanism sealing water valve.

Background technology

Angle valve and tap are all existing more commonly used family expenses sealing water valves, and its flow cavitation result part often uses valve element Mechanism, the water inlet end of its spool mechanism are generally required to set a sealing ring, and connection of the sealing ring mainly to the position that intakes is played Sealing function.

Existing spool mechanism is complicated, includes valve pocket, valve rod, moving plate, still, sealing ring and other attached knots Structure is, it is necessary to carry out waterproof leak-proof measure double-deck inside spool mechanism and between spool mechanism and valve body, and bilayer is anti- Water leak-proof measure can touch the water erosion of body cavity, once with the presence of a part seepage, it is easy to cause whole The seepage of valve body structure.

In addition, existing sealing ring is mainly set on valve element water inlet by way of grafting, valve element passes through sealing The overhanging marginal compression fit in end is enclosed in valve body, so as to realize the sealing of connecting portion.Sealing ring is except overhanging marginal Part in addition is completely exposed to bear water feeding pressure active force and current mobilization power in into water current, works as sealing ring Exposed parts sealing ring persistently pullled by water inlet flow action be in part between valve element and valve body, easily cause close The sealing function of seal disappears, and causes leak.

Utility model content

The utility model provides a kind of still mechanism for being used to seal water valve and sealing water valve, to solve existing sealing water Spool mechanism in valve is complicated, is easily caused entirely to seal water valve seepage by water erosion；The sealing ring of water inlet Easily caused poorly sealed by water inlet flow action, cause the technical problem of leak.

According to one side of the present utility model, there is provided a kind of still mechanism for being used to seal water valve, including for being formed Seal the valve body of water valve shell, in body cavity along water inlet fluid flow direction be placed with successively for by inner ring surface bear into Water hydraulic pressure enters waterstop ring and the still for forming fixed fluid passage, and entering waterstop ring, gland enters in valve body vertically Fit on the step surface at the mouth of a river and radially in body cavity side wall, still is fastened in body cavity side wall and gland In entering on waterstop ring；Or laid in body cavity along water inlet fluid flow direction for forming the quiet of fixed fluid passage Piece, still is fastened in body cavity side wall and gland is on the step surface of valve inleting water mouth, is set between still and step surface There are at least one set of water stopping trough and the O-ring seals in water stopping trough.

Further, at least one fluid for penetrating and entering for introducing valve inleting water mouth vertically is offered on still Fixation fluid passage；Fixed fluid passage is arranged to the small horn mouth of outer imperial palace, fixed stream towards the direction of valve inleting water mouth The direction of body passage towards moving plate is arranged to the matching mouth to match with the rotary seal part size on moving plate.

Further, still, which has, is used to be close to seal to contact with merga pass face to be rotatably assorted with sealing fluid with moving plate Passage forms the regulation face of different radial dimension of circulation passages and for entering waterstop ring surface pressure tight sealing engagement Sealing surface；Still outer side surface is provided with the keeper being used for body cavity side wall stationary positioned.

Further, regulation face, which is provided with, is used to adjust the sealing annular groove of radial direction dash and sealing when face contacts with moving plate face Or seal ring bar；And/or regulation face is provided with multiple fluid formation stills and moving plate turn for accommodating fluid and using accommodating The liquid storage hole of Fluid Sealing film in dynamic mating surface, liquid storage hole are laid in the rotary motion trace of rotary seal part of moving plate.

Further, keeper is slidably connected, using oblique draw runner and oblique chute using axial draw runner and axial slide It is slidably connected, is connected using sliding block and slide, is slidably connected, using spiral shell using dovetails and dovetail groove Line engagement is connected, engages connection with nibbling groove using grinding tooth, rolls mating connection, using roller and rolling using ball and chute At least one of dynamic mating connection of trough roller.

Further, entering waterstop ring includes being used for the first end face that contacts with still end face contact and is used for and valve body The second end face of inner chamber step surface contact contact, first end face form one group of opposing grasping face with second end face；Enter waterstop ring Also include the lateral surface for being contacted with body cavity side wall and born for being contacted with water inlet fluid into water Fluid pressure And the inner ring surface that will enter waterstop ring by Fluid pressure of intaking and be radially pressed in body cavity side wall, lateral surface with it is interior Anchor ring forms one group of single load bearing face from inside to outside.

Further, on inner ring surface build-in have for support into waterstop ring with after preventing into waterstop ring compressive deformation from The bracing ring that body cavity comes off, the cross sectional shape of bracing ring are one kind in L-shaped, T-shaped, U-shaped.

Further, bracing ring includes the build-in portion for being mounted in inner ring surface wall body and is attached at inner ring surface surface Attaching portion；Attaching portion is towards first end face) one end be resisted against still end face, or attaching portion is towards one end of first end face Spacing is left between still.

Further, first end face and/or second end face, which are provided with, is used in contact contact process delay by compression Rush to summit instead firmly and hermetic seal hermetic seal ring；And/or second end face is provided with and is used to be mounted in body cavity step The build-in bulge loop of sealing ring is formed in face, the cross sectional shape of build-in bulge loop is at least one in rectangle, taper, triangle, U-shaped Kind.

According to another aspect of the present utility model, a kind of sealing water valve is additionally provided, it includes above-mentioned for sealing water valve Still mechanism.

The utility model has the advantages that：

The utility model is used for the still mechanism for sealing water valve, using assembly cavity of the body cavity as still, directly exists Still is assembled in body cavity, still by entering waterstop ring gland on the step surface of valve inleting water mouth, with formed still with Sealing between valve body, enter waterstop ring and be held between still and step surface, the Stability Analysis of Structures into waterstop ring can be ensured Property；And enter three direction fittings of waterstop ring, only inner ring surface bears water feeding pressure, is not easily susceptible to the erosion into water current； With water feeding pressure increase and act on on the inner ring surface of waterstop ring, on the contrary cause enter waterstop ring attach body cavity Side wall is tighter, and sealing effectiveness is better, so as to improve the sealing property between still and valve body, ensures the use into waterstop ring Life-span.Total is simple, good airproof performance, is not easily susceptible into water water erosion, service life length.

The utility model is used for the still mechanism for sealing water valve, using assembly cavity of the body cavity as still, directly exists Assemble still in body cavity, the direct gland of still is on the step surface of valve inleting water mouth and passes through water stopping trough and O-ring seals To form sealing and the sealing between still and valve body, water inlet fluid, which invades, forms sealing moisture film between still and step surface, Sealing moisture film extends to water stopping trough and the matching part of O-ring seals stops and forms sealing truncation surface by O-ring seals so that Water inlet fluid can not continue inside seepage, so as to ensure the sealing between still and valve body.Total is simple, good airproof performance, It is not easily susceptible into water water erosion, service life length.

In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent Point.Below with reference to figure, the utility model is described in further detail.

Brief description of the drawings

The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing In：

Fig. 1 is the section for being used to seal the still mechanism of water valve for bringing waterstop ring into of the utility model preferred embodiment Structural representation；

Fig. 2 is the still machine for being used to seal water valve with water stopping trough and O-ring seals of the utility model preferred embodiment The cross-sectional view of structure；

Fig. 3 is the dimensional structure diagram of the still of the vertical strip keeper of band of the utility model preferred embodiment；

Fig. 4 is the inverted structure schematic diagram of the still of the vertical strip keeper of band of the utility model preferred embodiment；

Fig. 5 is the inverted structure schematic diagram of the still of the oblique strip keeper of band of the utility model preferred embodiment；

Fig. 6 is the dimensional structure diagram of the still with cylindrical slide keeper of the utility model preferred embodiment；

Fig. 7 is the Split type structure schematic diagram for entering waterstop ring with L-shaped bracing ring of the utility model preferred embodiment；

Fig. 8 is the cross-sectional view for entering waterstop ring with T-shaped bracing ring of the utility model preferred embodiment；

Fig. 9 is the cross-sectional view for entering waterstop ring with U-shaped bracing ring of the utility model preferred embodiment.

Marginal data：

1st, valve body；101st, step surface；2nd, waterstop ring is entered；201st, first end face；202nd, second end face；203rd, lateral surface； 204th, inner ring surface；205th, bracing ring；2051st, build-in portion；2052nd, attaching portion；206th, hermetic seal ring；207th, build-in bulge loop；3、 Still；301st, face is adjusted；302nd, sealing surface；303rd, keeper；304th, sealing annular groove or seal ring bar；305th, liquid storage hole；4th, it is solid Fluid channel；401st, horn mouth；402nd, mouth is matched；5th, moving plate；6th, water stopping trough；7th, O-ring seals.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by following The multitude of different ways for limiting and covering is implemented.

Fig. 1 is the section for being used to seal the still mechanism of water valve for bringing waterstop ring into of the utility model preferred embodiment Structural representation；Fig. 2 is the still for being used to seal water valve with water stopping trough and O-ring seals of the utility model preferred embodiment The cross-sectional view of mechanism；Fig. 3 is the solid of the still of the vertical strip keeper of band of the utility model preferred embodiment Structural representation；Fig. 4 is the inverted structure schematic diagram of the still of the vertical strip keeper of band of the utility model preferred embodiment； Fig. 5 is the inverted structure schematic diagram of the still of the oblique strip keeper of band of the utility model preferred embodiment；Fig. 6 is this practicality The dimensional structure diagram of the still with cylindrical slide keeper of new preferred embodiment；Fig. 7 is that the utility model is preferably real Apply the Split type structure schematic diagram for entering waterstop ring with L-shaped bracing ring of example；Fig. 8 is the band T of the utility model preferred embodiment The cross-sectional view for entering waterstop ring of shape bracing ring；Fig. 9 is the utility model preferred embodiment with U-shaped bracing ring Enter the cross-sectional view of waterstop ring.

As shown in figure 1, the still mechanism for being used to seal water valve of the present embodiment, including for forming sealing water valve shell Valve body 1, it is placed with successively along water inlet fluid flow direction for bearing water feeding pressure by inner ring surface 204 in the inner chamber of valve body 1 Enter waterstop ring 2 and the still 3 for forming fixed fluid passage 4, entering waterstop ring 2, gland is intake in valve body 1 vertically Fit on the step surface 101 of mouth and radially on the lumen side wall of valve body 1, still 3 is fastened on the lumen side wall of valve body 1 simultaneously Gland is in entering on waterstop ring 2.The utility model is used for the still mechanism for sealing water valve, using the inner chamber of valve body 1 as still 3 Assembly cavity, still 3 is assembled directly in the inner chamber of valve body 1, still 3 is by entering step of the gland of waterstop ring 2 in the water inlet of valve body 1 On face 101, to form the sealing between still 3 and valve body 1, enter waterstop ring 2 and be held between still 3 and step surface 101, energy Enough ensure the structural stability into waterstop ring 2；And enter the fitting of 2 three directions of waterstop ring, only inner ring surface 204 bear into Water hydraulic pressure, it is not easily susceptible to the erosion into water current；With water feeding pressure increase and act on the inner ring surface into waterstop ring 2 On 204, on the contrary cause enter waterstop ring 2 attach the lumen side wall of valve body 1 it is tighter, sealing effectiveness is better, so as to improve still 3 with Sealing property between valve body 1, ensure the service life into waterstop ring 2.Total is simple, good airproof performance, is not easily susceptible to Water inlet water erosion, service life length.Alternatively, in valve body 1, still 3, moving plate 5 it is at least one for vitreum, plastic body, Metallic object or ceramic body.Vitreum, using high-strength armoured heat resistant glass injection molding, valve inner knot can be viewed Structure, outward appearance is beautiful, and can be with anticorrosion；Asking for fluid contamination is produced in the absence of plastic case structure aging and the fluid being passed through Topic, environmental protection, health, safety.Plastic body, can be made of highstrenghtpiston, and portable construction is cheap；When for industry Using, and be not used in when drinking, waste or used plastics can also be used to make shaping.Metallic object, texture is good, and outward appearance is beautiful, solid；It is suitable The environment not high for corrosivity uses.Ceramic body, has heat transfer slow and the characteristic of even heat transmission, even if being passed through boiling water The burning heat sensation of outside is not easily caused, does not easily cause scald；Stream is produced in the absence of plastic case structure aging and the fluid being passed through The problem of body pollution, environmental protection, health, safety；Appearance looks elegant can be integrally formed with high temperature resistant, corrosion-resistant.Alternatively, inner ring surface 204 using perpendicular, inclined-plane or inner concave arc surface.Using perpendicular, Vertical Channel is formed, reduces the current passed through with erecting The active force of straight plane, current are reduced to entering the influence of waterstop ring 2.Alternatively, inclined-plane is lean-in towards flow inlet direction Tiltedly, the current that can be avoided passing through impact power influence on inclined-plane, while can form water inlet enlarging, can increase water inlet water Amount.Alternatively, inclined-plane slopes inwardly towards water outlet direction, forms radially outer active force using water flow impact pressure so that enter Waterstop ring 2 is tightly bonded the interior sidewall surface of valve body 1, so as to improve sealing；Water-carrying capacity and hydraulic pressure are bigger, enter waterstop ring 2 and paste Conjunction is closer, and sealing is better.Alternatively, the outward flange for entering waterstop ring 2 axially extends and is wrapped in the lateral wall of still 3 On, form the sealant and cushion being held between still 3 and the interior sidewall surface of valve body 1.

As shown in Fig. 2 the still mechanism for being used to seal water valve of the present embodiment, including for forming sealing water valve shell Valve body 1, lays the still 3 for forming fixed fluid passage 4 in the inner chamber of valve body 1 along water inlet fluid flow direction, and still 3 fixes In simultaneously gland on the step surface 101 of the water inlet of valve body 1, is provided between still 3 and step surface 101 on the lumen side wall of valve body 1 At least one set of water stopping trough 6 and the O-ring seals 7 in water stopping trough 6.The utility model is used for the still machine for sealing water valve Structure, using assembly cavity of the inner chamber of valve body 1 as still 3, still 3 is assembled directly in the inner chamber of valve body 1,3 direct gland of still exists To form the sealing between still 3 and valve body 1 on the step surface 101 of the water inlet of valve body 1 and by water stopping trough 6 and O-ring seals 7 And sealing, water inlet fluid invade between still 3 and step surface 101 formed sealing moisture film, sealing moisture film extend to water stopping trough 6 with The matching part of O-ring seals 7 stops and forms sealing truncation surface by O-ring seals 7 so that water inlet fluid can not continue inwardly Seepage, so as to ensure the sealing between still 3 and valve body 1.Total is simple, good airproof performance, is not easily susceptible to invade into water current Erosion, service life length.Alternatively, the surface of O-ring seals 7 and/or wall body are embedded with bracing ring, are sealed to form along O shapes The support of 7 Impact directions is enclosed, so as to ensure the sealing effectiveness of O-ring seals 7 and non-deformability, effectively prevents O shapes from sealing 7 seal failures are enclosed, the service life and enabling capabilities of O-ring seals 7 can be extended.Alternatively, the rotation angle position of still 3 is equal Chamfering or arc angle are arranged to, assembles to reduce still 3 or mutual collision damage occurs during use, while can also structure Guiding when being assembled into still 3, facilitates still 3 to assemble.

Alternatively, enter between waterstop ring 2 and the interior sidewall surface of valve body 1 and also be provided with O-ring seals 7 and/or water stopping trough.For Stationary positioned still 3, the radial motion of still 3 is limited, and the centering of still 3 is forced by the elastic reaction of O-ring seals 7, utilize O The mantle friction power restriction still 3 of shape sealing ring 7 circumferentially rotates.So as to ensure the setting stability of still 3.

Alternatively, still 3 can use the structure with the split of valve body 1.Still 3 is placed on valve body 1 by keeper positioning The specific set location of inner chamber.Alternatively, still 3 is one kind in cylinder, cone, cone table, polygonal body, hemisphere.

Alternatively, the still mechanism for being used to seal water valve of the present embodiment, including for forming the valve of sealing water valve shell Body 1, the still 3 for forming fixed fluid passage 4, still 3 and valve body are laid along water inlet fluid flow direction in the inner chamber of valve body 1 1 is integrated the overall structure for making shaping.Alternatively, still 3 is integrated the overall structure of injection molding, overall knot with valve body 1 Structure is one kind in vitreum, plastic body, vitreum, metallic object.The utility model is used for the still mechanism for sealing water valve, uses Setting chamber of the inner chamber of valve body 1 as still 3, still 3 directly uses with valve body 1 and makes integral overall structure, so as to ensure Intake fluid can not be by uniquely entering circulation road between valve body 1 and still 3 by, fluid passage on still 3.Whole knot Structure is simple, good airproof performance, is not easily susceptible into water water erosion, service life length.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in the present embodiment, offered on still 3 it is at least one vertically Penetrate and be used for the fixation fluid passage 4 for introducing the fluid of the water inlet of valve body 1 entrance.The water inlet of valve body 1 and fixed fluid lead to Road 4 forms water inlet current holding channels, when moving plate 5 rotates and fluid passage on moving plate 5 is connected with fixation fluid passage 4, So as to realize the opening of circulation passage, fluid can flow freely；Rotary seal part is caused to block fixed fluid when moving plate 5 rotates During passage 4, fluid passage is closed, and fluid is in the fixed position of fluid passage 4 retention.Fluid passage 4 is fixed towards the water inlet of valve body 1 Direction be arranged to the small horn mouth 401 of outer imperial palace.Water inlet fluid realizes that fluid converges by horn mouth 401, when unlatching fluid During passage, by increasing capacitance it is possible to increase fluid water yield；Horn mouth 401 is not easy indwelling and accumulates the solid particle in water body, while circulating water Stream can constantly wash away fixed fluid passage 4 by opening fluid passage, to prevent from fixing the blocking of fluid passage 4, ensure Fix the unobstructed of fluid passage 4.Fixed fluid passage 4 is arranged to big with the rotary seal part on moving plate 5 towards the direction of moving plate 5 The small matching mouth 402 to match.Facilitate the rotation of fluid passage between still 3 and moving plate 5 to adjust to coordinate, facilitate fluid opening and closing control System and fluid flow control.Alternatively, multiple movable circulation passages are offered on moving plate 5 and multiple for closing still 3 On fixation circulation passage sealing block, movable circulation passage is intervally arranged with sealing block.Alternatively, the fixed stream of still 3 one Circulation passage matches setting with moving plate 5 by mobile communication passage simultaneously.Alternatively, a sealing block of moving plate 5 simultaneously with it is quiet Multiple fixed circulation passage matchings of piece 3 are set.Alternatively, multiple mobile communication passages connection valve body 1 of moving plate 5 is same Current delivery outlet, or moving plate 5 multiple mobile communication passages be respectively communicated to valve body 1 different current output outlet.It is optional Ground, multiple fixed circulation passages of still 3 are communicated to the same current input port of valve body 1, or multiple fixed streams of still 3 Circulation passage is respectively communicated to the different current input ports of valve body 1.Alternatively, the axial height of moving plate 5 is 2mm~30mm；Radially A diameter of 5mm~30mm.Alternatively, the axial height of still 3 is 2mm~30mm；Radial diameter is 5mm~30mm.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in the present embodiment, still 3 has close for being close to moving plate 5 Envelope is rotatably assorted with closed fluid passages or formed the regulation face of different radial dimension of circulation passages with the contact of merga pass face 301 and for enter the surface of waterstop ring 2 pressure tight sealing engagement sealing surface 302.The outer side surface of still 3 be provided be used for The keeper 303 of the lumen side wall stationary positioned of valve body 1.

As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, in the present embodiment, regulation face 301, which is provided with, to be used to adjust face 301 and moving plate 5 The sealing annular groove or seal ring bar 304 of radial direction dash and sealing when face contacts；And/or regulation face 301 is used to hold provided with multiple Receive and fluid and form still 3 and moving plate 5 using the fluid of receiving and be rotatably assorted the liquid storage hole 305 of the Fluid Sealing film on face, storage Fluid apertures 305 is laid in the rotary motion trace of rotary seal part of moving plate 5.Sealing can be produced between regulation face 301 and moving plate 5 Moisture film is to realize the sealing of faying face and reduce faying face frictional force so that it is more smooth that moving plate 5 rotates regulation, and passes through sealing Annular groove or seal ring bar 304 effectively obstruction seals moisture film can stretch out, so as to avoid fluid seepage.Liquid storage hole 305 is used for Store fluid, and with moving plate 5 rotation drive liquid storage hole 305 in fluid move in the circumferential direction, so as to reduce regulation face 301 with Frictional force between moving plate 5 so that moving plate 5 rotate it is more smooth, and formed sealing moisture film barrier fluid pass through, so as to improve combination The sealing in face.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in the present embodiment, keeper 303 uses axial draw runner and axial direction Slide is connected, is connected, adopted using oblique draw runner and oblique chute sliding connection, using sliding block and slide It is slidably connected with dovetails with dovetail groove, mating connection is engaged using screw thread, connection is engaged with nibbling groove using grinding tooth, used Ball rolls with chute to be connected, rolls at least one of mating connection using roller and slot rolling.It can select as needed Different keepers 303 is selected, to facilitate the assembling of still to position, ensures structural stability.

As shown in Fig. 1, Fig. 7, Fig. 8 and Fig. 9, in the present embodiment, entering waterstop ring 2 includes being used for and the end face contact of still 3 The first end face 201 of contact and the second end face 202 for being contacted with the contact of 1 inner chamber step surface of valve body 101.First end face 201 form one group of opposing grasping face with second end face 202.Entering waterstop ring 2 also includes being used to contact with the lumen side wall of valve body 1 Lateral surface 203 and for contacting with water inlet fluid and bearing that into water Fluid pressure and by Fluid pressure of intaking water-stop will be entered Circle 2 is radially pressed in the inner ring surface 204 on the lumen side wall of valve body 1.Lateral surface 203 forms one group by interior with inner ring surface 204 Outside single load bearing face.By entering waterstop ring 2 and setting the first end face 201 and second end face 202 of axially opposing laying, First end face 201 directly contacts with the contact of still 3, and second end face 202 directly contacts with the contact of step surface 101 of the inner chamber of valve body 1, Still 3 is formed with step surface 101 to entering the two-way clamping stationary positioned of waterstop ring 2 vertically, to ensure entirely to enter water-stop The overall structure stability of circle 2.The lateral surface 203 for entering waterstop ring 2 is attached at the lumen side wall of valve body 1, and enters waterstop ring 2 Inner ring surface 204 directly bear into water fluid hydraulic pressure, will enter waterstop ring 2 under the effect of the pressure of fluid of intaking is pressed on valve body 1 On lumen side wall；When water inlet Fluid pressure is bigger, enter the lateral surface 203 of waterstop ring 2 and attach on the intracavity sidewall of valve body 1 to get over Tightly, with reference to still 3 and the clamping action of step surface 101, the compression sealing in three directions is formed so that water inlet current can only lead to Cross the inner chamber formed into the inner ring surface 204 of waterstop ring 2 to be circulated, enter watertight so as to ensure to seal water valve water inlet Envelope.Because the increase of water feeding pressure can strengthen the sealing effectiveness into waterstop ring 2 on the contrary, therefore whole sealing water valve can be improved The intake pressure that can be born；Enter waterstop ring 2 is not easily susceptible to the erosion damage into water current in use simultaneously, so as to Extend the service life into waterstop ring 2.Alternatively, the radial dimension of first end face 201 is more than the radial direction of second end face 202 Size, to facilitate the assembling into waterstop ring 2, while ensure the Assembly stability into waterstop ring 2.Alternatively, lateral surface 203 Tapered side, to ensure to assemble in place into waterstop ring 2, prevent from assembling deflection and causing leak.Alternatively, inner ring surface 204 tapered walls so that inner ring surface 204 is forced lateral surface 203 to be pressed in the lumen side of valve body 1 by water inlet bourn acting force On wall, formed and compress sealing.Alternatively, first end face 201 radially to extend around form be used for radially contact in valve It is outer to form the spacing annular of axial movement on the lumen side wall of body 1 and with the arranged for interval of 1 inner chamber respective step face of valve body 101 Edge.The contact surface of first end face 201 and still 3 can be improved, it is possible to increase the waterproof effect of faying face, while enable to quiet The lower pressure of piece 3 is uniformly transmitted downwards, and wall pressure is excessive and crushes into waterstop ring 2.Outer circular edge exists in assembling Lower cavity, cavity cushion effect can be formed, prevent superstructure during assembling from directly being collided with the inwall of valve body 1；Simultaneously Enough spaces that pushes can be formed, reduces when assembling to the force-to-crush of outer circular edge, effectively avoids directly crushing outer circular edge.

As shown in Fig. 1, Fig. 7, Fig. 8 and Fig. 9, in the present embodiment, there is for supporting into waterstop ring build-in on inner ring surface 204 2 bracing ring 205 to be come off from the inner chamber of valve body 1 after preventing into the compressive deformation of water sealing ring 2.Bracing ring 205 is radially mounted in In inner ring surface 204, structure tomography radially and axially on inner ring surface 204 is formed, structure tomography can be used in buffering water hammer effect Two-way repeated stock caused by answering, it also can be used in being buffered into the axial compressive force change that waterstop ring 2 is subject to；Simultaneously to water inlet The axial deformation of sealing ring 2 and radial deformation are construed as limiting, and are avoided into waterstop ring 2 due to deforming excessive and what is fallen off show As so as to ensure integrally-built stability.Alternatively, enter waterstop ring 2 and/or bracing ring 205 uses silica gel ring or rubber Cushion rubber.The cross sectional shape of bracing ring 205 is one kind in L-shaped, T-shaped, U-shaped.Shown in Fig. 1 and Fig. 7, the section shape of bracing ring 205 Shape is L-shaped.Shown in Fig. 8, the cross sectional shape of bracing ring 205 is T-shaped.Shown in Fig. 9, the cross sectional shape of bracing ring 205 is U-shaped.Can Bracing ring 205 in the form of selecting different structure as needed is to meet requirement.The bracing ring 205 of L-shaped is formed to water inlet The axially unidirectional barrier on limitation and the surface of inner ring surface 204 limitation of sealing ring 2.The bracing ring 205 of T-shaped is formed to entering waterstop ring The 2 axially two-way barrier on limitation and the surface of inner ring surface 204 limitations.The bracing ring 205 of U-shaped is formed to entering 2 pairs of portions of waterstop ring The position axially overall barrier on limitation and the surface of inner ring surface 204 limitation.Alternatively, bracing ring 205 can be with build-in in inner ring surface 204 Wall body surface.Alternatively, bracing ring 205 is coated on into the wall body of waterstop ring 2, is entered the formation of waterstop ring 2 and is included bracing ring 205 Composite construction.

As shown in Fig. 1, Fig. 7, Fig. 8 and Fig. 9, in the present embodiment, bracing ring 205 includes being used to be mounted in the wall of inner ring surface 204 Internal build-in portion 2051 and the attaching portion 2052 for being attached at the surface of inner ring surface 204.Alternatively, attaching portion 2052 towards first One end of end face 201 is resisted against the end face of still 3.Alternatively, attaching portion 2052 towards one end of first end face 201 and still 3 it Between leave spacing.By the build-in of build-in portion 2051 in the surface groove of inner ring surface 204, axially become to entering waterstop ring 2 with being formed The limitation of shape and axial buffer function.The surface of inner ring surface 204 is attached to by attaching portion 2052, to limit into waterstop ring 2 Radial deformation and buffering radial forces.

As shown in Fig. 1, Fig. 7, Fig. 8 and Fig. 9, in the present embodiment, first end face 201 and/or second end face 202 are provided with and used The hermetic seal ring 206 of contact active force and hermetic seal is buffered by compression in contact contact process；And/or second End face 202 is provided with the build-in bulge loop 207 for being used to be mounted in and sealing ring being formed in the inner chamber step surface 101 of valve body 1.Build-in bulge loop 207 cross sectional shape is at least one of rectangle, taper, triangle, U-shaped.Different build-ins can be selected convex as needed The cross sectional shape of ring 207, surface taper can facilitate structure assembly in place.

The sealing water valve of the present embodiment, including the above-mentioned still mechanism for being used to seal water valve.

During implementation, there is provided a kind of still mechanism for being used to seal water valve, by directly being assembled successively in the assembly cavity of valve body 1 That enters waterstop ring 2, still 3, moving plate 5 and the top of moving plate 5 pushes fixed mechanism.Still 3 passes through the stationary positioned of keeper 303 In the inner chamber of valve body 1, the circumferential movement of still 3 is limited by keeper 303 and moved radially.Moving plate 5 is filled by locating part In the stopper slot for fitting over the inner chamber of valve body 1.Compressed by pushing fixed mechanism assembling to limit the axial location of moving plate 5 and still 3. Still 3 is supported by entering waterstop ring 2, the fixed mechanism pressing face that pushes pushed is fastened according to top and is bonded moving plate 5 and causes The lower surface cloth set direction of moving plate 5 minor variations, enter waterstop ring 2 resilient support effect automatically adapt to moving plate 5 should Minor variations and the laying state for coordinating and correcting the upper surface of still 3 in time so that still 3 remains that face is bonded with moving plate 5 Cooperation is tightly combined, so as to ensure the sealing effectiveness of the dynamic sealing of the upper and lower surface of moving plate 5.Pass through when between still 3 and moving plate 5 It is rotatably assorted after fretting wear occurs, is acted on using the resilient support for entering waterstop ring 2 for a long time, forces still 3 tight all the time Close face is attached on the surface of moving plate 5 so that will not be with the accuracy of manufacture, assembly precision stabilization, use between still 3 and moving plate 5 The problems such as abrasion and cause the upper and lower surface of moving plate 5 dynamic sealing compress binding face separation, it is ensured that the stability of dynamic sealing and Sealing, to extend the service life of dynamic sealing.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of still mechanism for being used to seal water valve, including for forming the valve body (1) of sealing water valve shell,

Characterized in that,

It is placed with successively along water inlet fluid flow direction for being born by inner ring surface (204) into water in valve body (1) inner chamber Hydraulic pressure enters waterstop ring (2) and the still (3) for forming fixed fluid passage (4), it is described enter waterstop ring (2) along axle To gland in fitting on the step surface (101) of the valve body (1) water inlet and radially the valve body (1) lumen side wall On, the still (3) be fastened on the valve body (1) lumen side wall and gland in it is described enter waterstop ring (2) on；Or

The still (3) for forming fixed fluid passage (4) is laid along water inlet fluid flow direction in valve body (1) inner chamber, The still (3) is fastened on the valve body (1) lumen side wall and gland is in the step surface of the valve body (1) water inlet (101) at least one set of water stopping trough (6) is provided with, between the still (3) and the step surface (101) and located at the sealing O-ring seals (7) in groove (6).

2. the still mechanism according to claim 1 for being used to seal water valve, it is characterised in that

At least one stream for penetrating and entering for introducing the valve body (1) water inlet vertically is offered on the still (3) The fixation fluid passage (4) of body；

The fixed fluid passage (4) is arranged to the small horn mouth of outer imperial palace towards the direction of the valve body (1) water inlet (401),

The fixed fluid passage (4) is arranged to and the rotary seal part size on the moving plate (5) towards the direction of moving plate (5) The matching mouth (402) to match.

3. the still mechanism according to claim 2 for being used to seal water valve, it is characterised in that

The still (3), which has, to be used to be close to seal to contact with merga pass face with the moving plate (5) to be rotatably assorted to close stream Body passage or formed different radial dimension of circulation passages regulation face (301) and for it is described enter waterstop ring (2) table The sealing surface (302) of face pressure tight sealing engagement；

Still (3) outer side surface is provided with the keeper being used for the valve body (1) lumen side wall stationary positioned (303)。

4. the still mechanism according to claim 3 for being used to seal water valve, it is characterised in that

The regulation face (301) is provided with radial direction dash when being contacted for the regulation face (301) with the moving plate (5) face and stopped The sealing annular groove or seal ring bar (304) of water；And/or

The regulation face (301) is provided with multiple for accommodating fluid and forming the still (3) and institute using the fluid of receiving The liquid storage hole (305) for the Fluid Sealing film that moving plate (5) is rotatably assorted on face is stated, the liquid storage hole (305) is laid in the moving plate (5) in the rotary motion trace of rotary seal part.

5. the still mechanism according to claim 3 for being used to seal water valve, it is characterised in that

The keeper (303) is slided using axial draw runner with axial slide sliding connection, using oblique draw runner and oblique chute It is connected, be connected using sliding block and slide, is nibbled using dovetails and dovetail groove sliding connection, using screw thread Close and be connected, connection is engaged with nibbling groove using grinding tooth, mating connection is rolled using ball and chute, rolled using roller and slot rolling At least one of dynamic mating connection.

6. the still mechanism according to any one of claim 1 to 5 for being used to seal water valve, it is characterised in that

It is described enter waterstop ring (2) include being used for the first end face (201) that contacts with the still (3) end face contact and be used for The second end face (202) contacted with the valve body (1) inner chamber step surface (101) contact, the first end face (201) and described the Biend (202) forms one group of opposing grasping face；

It is described enter waterstop ring (2) also include being used for the lateral surface (203) that contact with the valve body (1) lumen side wall and use In contacted with water inlet fluid bear into water Fluid pressure and by intake Fluid pressure by it is described enter waterstop ring (2) radially press Tightly formed in the inner ring surface (204) on the valve body (1) lumen side wall, the lateral surface (203) with the inner ring surface (204) One group of single load bearing face from inside to outside.

7. the still mechanism according to claim 6 for being used to seal water valve, it is characterised in that

On the inner ring surface (204) build-in have for support it is described enter waterstop ring (2) with prevent it is described enter waterstop ring (2) by The bracing ring (205) to be come off after compressive strain from the valve body (1) inner chamber,

The cross sectional shape of the bracing ring (205) is one kind in L-shaped, T-shaped, U-shaped.

8. the still mechanism according to claim 7 for being used to seal water valve, it is characterised in that

The bracing ring (205) includes being used for build-in portion (2051) and the attaching being mounted in the inner ring surface (204) wall body In the attaching portion (2052) on the inner ring surface (204) surface；

The attaching portion (2052) is towards the first end face (201)) one end be resisted against the still (3) end face, or

The attaching portion (2052) leaves spacing towards between one end of the first end face (201) and the still (3).

9. the still mechanism according to claim 6 for being used to seal water valve, it is characterised in that

The first end face (201) and/or the second end face (202), which are provided with, to be used to by compressing become in contact contact process The hermetic seal ring (206) of shape buffering contact active force and hermetic seal；And/or

The second end face (202), which is provided with to be used to be mounted in the valve body (1) inner chamber step surface (101), forms sealing ring Build-in bulge loop (207), the cross sectional shape of the build-in bulge loop (207) is at least one of rectangle, taper, triangle, U-shaped.

10. one kind sealing water valve, it is characterised in that including any one of claim 1 to 9 be used for seal the quiet of water valve Piece mechanism.