CN201218330Y - Valve with easily replaced valve core and sealing ring, and double-valve control valve composed of common valve and the same - Google Patents

Abstract

The utility model relates to a valve with an easily removed and replaced valve core and an easily-removed-replaced sealing ring and a double-valve control valve which is composed of the valve and a common valve. A valve cover and a valve seat of the valve with an easily removed and replaced valve core and an easily removed and replaced sealing ring adopt the nested flexible connection of roll balls which are conveniently removed and installed, i.e. a roll ball hole is arranged on the valve seat, and the roll balls are arranged in the hole. The outer side of the hole is provided with a lock sleeve for controlling the roll balls, a supporting spring is arranged below the lock sleeve, and a retaining clip spring is arranged on the lock sleeve. A ring-shaped groove matching with the roll balls is arranged on the valve cover. The lock sleeve pushes the roll balls to be inserted in the ring-shaped groove of the valve cover, and the valve cover is locked. When the valve core and the sealing ring are damaged, the lock sleeve is pressed downwards, the roll balls are unlocked and the valve cover can be taken out, and the valve core and the sealing ring can be removed and replaced. The double-valve control valve which consists of the valve and a common valve can emergently close the common valve to rapidly carry out the removal and replacement for restoring the use when the valve core and the sealing are damaged. The valve is simple in structure, and is convenient in maintenance, especially the valve core and the sealing ring which are the easily-damaged parts are easy to be removed and replaced, so the maintenance is popularized to facilitate the use, and at the same time, the service life of the valve is prolonged.

Description

Easily replace the valve of spool and seal ring and the bivalve control valve of forming with common valve thereof

Affiliated technical field

The utility model relates to a kind of valve of controlling fluid flow size, Push And Release.Especially valve damages when out of control, block fluid after, can very easily replace easily damaged parts spool and seal ring, repair rapidly, recover to use.

Background technique

At present, the damage of various valves, major part is that spool and seal ring damage and cause, as long as therefore change a lower valve core and seal ring just can be repaired.Actual conditions but are, valve is just removed the valve that damages come in case damage, and changes new valve, and there is following several drawback in this pattern:

1, after valve damaged, a lot of people did not have instrument, were exactly not replace or to replace very difficult, wait the engineering maintenance man to replace, and can not get on-call maintenance, and influence is used.

2, valve damages to drop back and does not repair and abandon, and causes great energy waste, not environmental protection.

When 3, valve damaged, fluid may outflow, if can not in time close upstream control valve or main valve, can cause waste, and what have also can influence environment, even befouling environment.

4, close main valve after, repair time is longer, can influence the main valve downstream other minute valve normal use.

Summary of the invention

After overcoming existing valve damage, a lot of people can not keep in repair, and can not replace, can not emergency cut-off, cause waste, do not repair after influence is used and removed and and abandon, cause great energy waste, problems such as not environmental protection, the utility model provide a kind of valve of spool and seal ring and bivalve control valve of forming with common valve thereof of easily replacing, when this valve damages, can promptly implement to close, just can very easily not replace spool and seal ring, repair rapidly, recover to use by other any instrument.

The technological scheme that its technical problem that solves the utility model adopts is: valve gap adopts the nested flexible connection of ball of conveniently removing dress with valve seat, promptly on valve seat boss cylindrical wall, radially offer the ball hole more than 3, dress ball in the hole, the big more stability of the many more coupling mechanism forces of ball hole is good more; The hole axle is distributed near the cylinder top perpendicular to distributing on the same cross section of cylinder axis and evenly, this hole is that (wall thickness of cylinder is greater than the radius of the ball diameter less than ball in isodiametric ball hole by the cylindrical hole transition from the cylinder outer wall to the inwall, the centre of sphere in ball hole equates with the radius of ball to the distance of cylinder outer wall), the inwall bore dia is less than ball diameter, and the outer wall bore dia is greater than ball diameter; Offer the annular groove that mates with ball on the valve gap position corresponding with the hole, promptly groove and ball are tangent, and groove cross section radius of arc equates that with the ball radius depth of groove equates with the spherical crown height that ball exposes; Put supported spring, lock tube and jump ring along valve seat boss cylinder outer wall successively, supported spring is in compressive state, all the time hold out against the lower end surface of lock tube, the upper-end surface has jump ring spacing, and the lock tube internal surface is the cylndrical surface by the conical surface transition from top to bottom, and lock tube moves from bottom to top, conical surface promotes the depths that ball enters the hole, carry out the transition to the cylndrical surface always and compress ball, make ball protrude spherical crown and partly be nested in the annular groove of valve gap, the locking valve gap from valve seat boss cylinder inner wall.Press down lock tube, the ball pressure is removed, and the spherical crown part of protrusion can be return in the valve seat ball hole, promptly is rolled in the gap between lock tube internal conical surface and the valve seat boss cylinder inner wall hole valve gap release, desirable bottom flange.

In valve seat, tumble in seal ring, the spool of packing into, cover upper valve rod and spring, overlap bonnet again, press down lock tube, valve gap is pressed in the valve seat, unclamp lock tube locking valve gap, pack into successively valve bonnet (what have is integrated in the spanner), positioning rod (what have is integrated in the spanner), jump ring (just having when positioning rod is arranged), spanner, tightening nuts (or screw), lock ring can safety and stability use (all being with O-ring seals in advance in valve rod and the valve gap outer wall sealed groove) on the lock tube underlay at last again.When valve damages, close nearest upstream control valve or main valve immediately, take off lock ring, press down lock tube, hold spanner and extract valve gap, because valve rod, spring, valve gap, valve bonnet, positioning rod, jump ring, O-ring seals, spanner link together by nut or screw, formed an integrated package one, therefore when extracting valve gap in fact with integrated package one taking-up, exposing damaged spool and seal ring can take off easily, change new seal ring and spool, installing integrated package one can repair, and recovers to use.

For easier, Xinmi City's seal and new spool are combined by matching requirements, form integrated package two, when replacing, take off integrated package one, remove the seal ring and the spool of damage, the integrated package two of packing into, the integrated package that closes are locked in the lump and can be recovered to use.Form integrated package two according to the difformity of used spool dual mode is arranged: one, when this valve adopts taper valve core, at the spool edge of going to the bottom annular flange flange is arranged, six small through hole are arranged on flange, three of conllinear small through hole are not one group, two groups of pore size distributions are in the both sides of taper valve core large through-hole, the seal ring bottom surface that cooperates with spool has three tingles with one group of aperture same distribution of spool in the inner part, three tingles of seal ring are inserted in one group of aperture of spool flange simultaneously, tingle and aperture transition fit, so just a slice seal ring is fixed on the spool, equally another sheet seal ring also is fixed on the spool, just forms integrated package two by two seal rings and spool like this; They are two years old, when this valve adopts the ceramic valve core of cylindrical button shape, the claw with protruding handle by two spools and the rotation of driving upper valve core is up and down formed Spool assembly, seal ring and Spool assembly all are contained in a kind of framework, and this framework bottom surface is a ring, protrude upward four contour ribs in the annulus outer rim perpendicular to the bottom surface, there is snap close the upper end of every root, the upper end of four roots is the opening end of framework, can pin seal ring and the Spool assembly that is contained in the framework by snap close, forms integrated package two together.All adopt the O-ring seals sealing between valve rod and valve gap, valve gap and the valve seat, also replaceable as wearing and tearing.

If upstream control valve or main valve distance are far away, be inconvenient to implement emergency cut-off, it perhaps itself is exactly main valve, can't implement emergency cut-off at all, at this moment, valve and the common valve (ball valve, gate valve, stopcock or Valve with ceramic core) that just will easily replace seal ring and spool are used in combination, and form a kind of bivalve control valve; Common valve is Emergeny Cutoff Valves at entrance point; The valve of easily replacing seal ring and spool is valve commonly used at outlet end; Two valves fuse by flexible connection, and also totally one valve seat is made one; Two valve spanners are positioned at homonymy in the bivalve control valve, below the common valve spanner, expose on the valve rod of valve seat and be equipped with from locking plate (lock ring of functional equivalent when the valve of easily replacing seal ring and spool uses separately), when common valve is opened, below rotating to the block of valve cover of easily replacing seal ring and spool, locking plate withstands lock tube, lock tube pins valve gap, has guaranteed easily to replace the valve safety and stability use of seal ring and spool; Have only when common valve is closed, rotate together with valve rod from locking plate, below the whiz lock tube, press down lock tube, lock tube just can move down, and just can take off integrated package one, replaces integrated package two, has guaranteed that safety replaces.In the use, with the spanner of common valve remove put well standby.

The beneficial effects of the utility model are, energy-conserving and environment-protective cut the waste, and simultaneously because simple in structure, are convenient to maintenance, and particularly easily damaged parts spool and seal ring are easily removed easily and changed, and make maintenance popular, bring convenience to the user.

Description of drawings

Fig. 1 is first embodiment's sectional view of the present utility model

Fig. 2 is the erection drawing of integrated package one among Fig. 1

Fig. 3 is that Fig. 1 removes integrated package phase diagram for the moment

Fig. 4 is the erection drawing of integrated package two among Fig. 1

Fig. 5 is the phase diagram when lock ring is opened among Fig. 1

Fig. 6 is the phase diagram during the lock ring locking among Fig. 1

Fig. 7 is second embodiment's erection drawing of the present utility model

Fig. 8 is the structural drawing of integrated package one among Fig. 7

Fig. 9 is the gimbal axis mapping that is used for making up integrated package two among Fig. 7

Figure 10 is the structural drawing of integrated package two among Fig. 7

Figure 11 is the enlarged view of C-C sectional drawing among Fig. 7

Figure 12 is the enlarged view of D-D sectional drawing among Fig. 7

Figure 13 is ordinary ball valve figure

Figure 14 is the 3rd embodiment's erection drawing of the present utility model

Figure 15 is the 4th embodiment's erection drawing of the present utility model

Figure 16 is the 5th embodiment's erection drawing of the present utility model

1. seal rings among the figure, 2. spool, 2-1. lower valve core, 2-2. upper valve core, 3. valve seat, 4. supported spring, 5. big O-ring seals, 6. lock tube, 7. ball, 8. valve gap, 9. valve rod, 10. spanner, 11. nuts, 12. little O-ring seals, 13. springs, 14. valve bonnet, 15 spacing jump rings, 16. lock rings, 17. from locking plate, 18. the locking jump ring, the seal ring of 19. band supporting frames, 20. frameworks, 21. claws, 22. the location jump ring, 23. positioning rods, 24. screws, 25. ornaments.

Embodiment

Embodiment one, Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6.Spool 2 adopts taper valve core in Fig. 1, offers four ball holes on the valve seat 3 boss cylindrical walls, loads onto ball 7 in each hole, puts supported spring 4 at cylinder outer wall, puts lock tube 6 again, presses down lock tube 6 and exposes cylindrical wall upper end jump ring groove, loads onto spacing jump ring 15; In Fig. 2, put into little O RunddichtringO 12 in the seal groove of valve rod 9, the small end that overlaps upper spring 13, valve rod 9 again passes the center hole of valve gap 8, put valve bonnet 14, spanner 10 successively, extrusion spring 13 exposes valve rod 9 top screw portions, locks nut 11, in the seal groove of valve gap, put into big O RunddichtringO 5 at last, so just integrated package one is dressed up; In Fig. 4, seal ring 1 inward flange of going to the bottom has not three uniform tingles of conllinear, the following bottom flange of spool 2 has six apertures that mate with tingle, divide two groups, be distributed in the both sides of radial direction through hole, three tingles that seal ring 1 is gone to the bottom are aimed at one group of three aperture with its coupling respectively, insert two seal rings 1 successively, nail and hole transition fit so just are assembled into integrated package two; Two slots that mate with seal ring 1 are arranged in the valve seat 3, two slots of two seal rings 1 in the integrated package two along valve seat 3 are inserted, meanwhile the positioning hole of spool 2 bottom surfaces is enclosed within on the locating column of valve seat 3 bottom surfaces, in the valve seat 3 of so just integrated package two being packed into; Press down lock tube 6 and make ball 7 releases, with the protruding handle of the groove alignment spool 2 of valve rod 9 lower end surfaces in the integrated package one integrated package one of packing into, press down integrated package one, unclamp lock tube 6, promote ball 7 it is protruded the groove of spherical crown embedding valve gap 8 from valve seat 3 boss cylinder inner walls, locking integrated package one, meanwhile, valve rod 9 promotes spools and moves downward, and two seal rings 1 are embedded in and can not move downward in the valve seat, six apertures of 2 times bottom flanges of spool break away from the tingle that seal ring 1 is gone to the bottom, and spool 2 is just rotatable; The conical surface of spool 2 promote two seal rings 1 to two side shiftings be adjacent to the closed surface of valve seat 3 on, make it sealing; This moment, spanner 10 lower end surfaces and valve bonnet 14 upper surfaces were gapped, valve rod 9 bottom surfaces and spool 2 upper surfaces are fitted, and spool 2 bottom surfaces and valve seat 3 bottom surfaces are also gapped, and spring 13 is in compressive state, its elastic force is close on the surface of contact with seal ring 1 spool 2 conical surfaces, makes it sealing; Valve gap 8 positioning boss of going to the bottom is inserted in the slot of valve seat 3, valve gap 8 can not rotate, upper surface has four cylinders that pass valve bonnet 14 projectioies to play position-limiting action, restriction spanner 10 can only rotate in the scope of 90 degree, just spool can only rotate in the scope of 90 degree, promptly from the standard-sized sheet to the complete shut-down or from the complete shut-down to the standard-sized sheet, spool 2 just revolves and turn 90 degrees; The last lock ring 16 that below lock tube 6, puts among Fig. 5, the both sides semi-ring of compressing lock ring 6 makes the lock ring 16 of locking among Fig. 6, and the valve of easily replacing spool and seal ring among Fig. 1 just assembles and finishes like this.This valve fits badly when leaking, emergency cut-off upstream control valve or main valve, take off lock ring 16, press down lock tube 6, take off integrated package one, its state as shown in Figure 3, take out damaged spool 2 of mill and seal ring 1, the new integrated package two of packing into installs integrated package and locks in the lump, locks lock ring 16 again and can recover to use.If fluid leaks from valve rod 9 and valve gap 8 surface of contact, will remove valve rod 9 and replace little O-ring seals 12, if fluid leaks from the surface of contact of valve gap 8 with valve seat 3, will remove integrated package one, replace the big O-ring seals 5 on the valve gap 8.

Embodiment two, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, shown in Figure 12.Spool adopts two cylindrical button-type ceramic cores that cooperate up and down in Fig. 7, compare with first embodiment, all to be that the employing activity is nested with valve seat 3 be connected valve gap 8, structure is identical, here repeat no more, integrated package one and integrated package two are all inequality among two embodiments, following division is as follows: integrated package one is compared with Fig. 2 among (1) Fig. 8, lacked valve bonnet 14 (valve bonnet is integrated in the spanner), nut 11 has increased ornament 25, screw 24, positioning rod 23 (first embodiment's positioning rod is integrated in the spanner) and restriction positioning rod 23 are to the location of lower slider jump ring 22, in Fig. 8, put into big O RunddichtringO 5 in valve gap 8 seal grooves, put into little O RunddichtringO 12 in the seal groove of valve rod 9, from the small end cover upper spring 13 of valve rod 9, the small end of valve rod 9 passes the center hole of valve gap 8 again, pressure spring 13 exposes valve rod 9 upper end jump ring slot parts, load onto location jump ring 22, put positioning rod 23 more successively, spanner 10 is locked screw 24, post ornament 25, so just integrated package one is installed; (2) integrated package among Figure 10 two is different fully with integrated package two integrated approaches among Fig. 4, integrated package two among Figure 10, spool by lower valve core 2-1, upper valve core 2-2, and drive the claw 21 that upper valve core 2-2 rotates and form Spool assembly, in the framework in seal ring 1, the Spool assembly load map successively 9 20, four root tops of framework 20 all have snap close, they are locked together, form integrated package two; With reference to Figure 11 and Figure 12, during assembling the protruding handle of two claws 21 of integrated package among Figure 10 being inserted among Fig. 8 integrated package one valve rod 9 goes to the bottom in the groove and exerts pressure, 9 times bottom flanges of valve rod are imbedded in the framework 20 to be pinned by snap close, integrated package two and integrated package one connect together like this, press down lock tube 6 and make ball 7 releases, the positioning boss of four roots of framework 20 and lower valve core 2-1 is aimed at the spline groove of valve seat boss cylinder inner wall, they are inserted in the valve seat, press down integrated package 1, unclamp lock tube 6, promoting ball 7 makes it protrude the groove of spherical crown embedding valve gap 8 locking integrated package one from valve seat 3 boss cylinder inner walls; Because spring 13 is in compressive state, its elastic force makes the seal ring 19 upper-end surfaces sealing of bottom surface with the band supporting frame of framework 20, make the upper surface sealing of seal ring 1 lower surface and framework 20 annulus part, make the lower end surface sealing of seal ring upper surface and lower valve core 2-1, make the faying surface driving fit of upper valve core 2-2 and lower valve core 2-1; Positioning rod 23 is limited in 90 scopes of spending by the boss of valve gap 8 upper surfaces and rotates, thereby the control spool just rotates 90 degree from the standard-sized sheet to the complete shut-down or from the complete shut-down to the standard-sized sheet, be convenient to switching manipulation; Lock ring 16 and locking on lock tube 6 lower end surface pads at last, the valve of easily replacing spool and seal ring among Fig. 7 just assembles and finishes like this.This valve fits badly when leaking, emergency cut-off upstream control valve or main valve, take off lock ring 16, press down lock tube 6, take off integrated package one and integrated package two (integrated package one links together with the snap close of integrated package two by framework 20), pull down damaged integrated package two, change new integrated package two and install locking, lock lock ring 16 again and can recover to use.If fluid leaks from valve rod 9 and valve gap 8 surface of contact, will remove valve rod 9 and replace little O-ring seals 12, if fluid leaks from the surface of contact of valve gap 8 with valve seat 3, will remove integrated package one, replace the big O-ring seals 5 on the valve gap 8.

Embodiment three, Figure 13, shown in Figure 14.Ordinary ball valve among Figure 13 and Fig. 1 are easily replaced the valve of spool and seal ring form the bivalve control valve together by scyewed joint.Ordinary ball valve is a normally open valve, at entrance point, be equivalent to the upstream control valve, the valve of easily replacing spool and seal ring is at outlet end, be valve commonly used, two valve spanners are positioned at homonymy, expose on the valve rod of valve seat to be equipped with from locking plate 17 (lock ring of functional equivalent when the valve of easily replacing seal ring and spool uses separately) below the common valve spanner, L-shaped, its locking jump ring 18 of locking is arranged above it; During the common valve standard-sized sheet, withstand lock tube 6 below locking plate 17 rotates to the block of valve cover 6 of easily replacing seal ring and spool, lock tube 6 pins valve gap 8, has guaranteed easily to replace the valve safety and stability use of seal ring and spool; When the valve of easily replacing spool and seal ring damaged, the emergency cut-off ordinary ball valve was rotated with valve rod together from locking plate 17, below the whiz lock tube 6, at this moment press down lock tube 6, lock tube 6 just can move down, just can take off integrated package one, replace integrated package two, guarantee that safety replaces.In the use, remove the spanner of common valve and put well standby.

Embodiment four, and is shown in Figure 15, the bivalve control valve of being made up of the valve of easily replacing spool and seal ring of ordinary ball valve and taper valve core.Compare with the 3rd embodiment Figure 14 and different to be, valve seat is an overall structure, i.e. their totally one valve seats 3; Other structure is identical, repeats no more here.

Embodiment five, and is shown in Figure 16, is in the same place by scyewed joint by Figure 13 ordinary ball valve and the valve that Figure 11 easily replaces spool and seal ring, forms the bivalve control valve.In order to make compact structure, valve entrance point among Figure 11 has been shortened a part.This valve takes the shape of the letter U from locking plate 17, and its locking jump ring 18 of locking is arranged above it; During the ordinary ball valve standard-sized sheet, below locking plate 17 rotates to lock tube 6, withstand lock tube 6, guaranteed easily to replace the valve safety and stability use of seal ring and spool; When the valve of easily replacing spool and seal ring damaged, the emergency cut-off ordinary ball valve was rotated with valve rod together from locking plate 17, below the whiz lock tube 6, at this moment pressed down lock tube 6, and lock tube 6 moves down, and takes off integrated package one, replaces integrated package two, repairs rapidly, recovers to use.As from the foregoing, only close ordinary ball valve after, could commute replace the valve of spool and seal ring and implement to replace, guaranteed that safety replaces.In the use, remove the spanner of common valve and put well standby.

Claims (7)

1, a kind of valve of easily replacing spool and seal ring, by valve seat, seal ring, spool, valve rod, spring, valve gap, valve bonnet, jump ring, ball, lock tube, spanner, nut is formed, it is characterized in that: valve gap adopts the nested flexible connection of ball of conveniently removing dress with valve seat, be that valve seat boss cylinder is provided with ball hole, ball is arranged in the hole, valve gap is provided with the annular groove with the ball coupling, there is the lock tube of control ball in the outside, hole, lock tube can move up and down, move on the lock tube, can push ball and expose the annular groove that spherical crown is partially submerged into valve gap, the locking valve gap from valve seat boss cylinder inner wall; Lock tube moves down, and ball external force is removed, and the spherical crown part of exposing can be return in the valve seat ball hole valve gap release; The pressure spring of compressive state is housed between lock tube lower end surface and the valve seat, spacing jump ring is housed on the valve seat of lock tube upper-end surface, be lined with lock ring below the lock tube.

2, valve of easily replacing spool and seal ring according to claim 1, it is characterized in that: ball hole hole axle is distributed in perpendicular to distributing on the same cross section of valve seat boss cylinder axis and evenly, quantity is more than 3, this hole is isodiametric ball hole by the cylindrical hole transition from the cylinder outer wall to the inwall, the inwall bore dia is less than ball diameter, and the outer wall bore dia is greater than ball diameter.

3, valve of easily replacing spool and seal ring according to claim 1 is characterized in that: annular groove and ball on the valve gap are tangent, and the groove section radius equates that with the ball radius depth of groove equates with the spherical crown height that ball exposes.

4, according to the described valve of easily replacing spool and seal ring of claim 1, it is characterized in that: lock ring is made of plastics two semi-rings that fuse, and adopts to mould to detain to flexibly connect into ring.

5, valve of easily replacing spool and seal ring according to claim 1, it is characterized in that: spool is the taper valve core that there is protruding handle the upper-end surface, also can be, by two cylindrical button shape ceramic valve cores up and down and drive the Spool assembly that the claw with protruding handle that upper valve core rotates is formed; There is shrinkage pool the valve rod lower end surface, protruding handle and shrinkage pool Spielpassung, and valve rod is a multidiameter shaft, and small end passes the cylindrical hole at valve gap center, and valve stem tip has spanner and tightening nuts, and the spring that keeps compressive state is arranged between valve rod and the valve gap; Valve rod, the spring that is in compressive state, valve gap, valve bonnet, spanner, the synthetic integrated package one of nut block.

6, according to claim 1 and 5 described valves of easily replacing spool and seal ring, it is characterized in that: spool that is used to replace and seal ring are combined by matching requirements and are formed integrated package two; When spool is taper, annular flange flange is arranged at the spool bottom, six apertures are arranged on the flange, three of conllinear apertures are not one group, two groups of pore size distributions are in the both sides of taper valve core large through-hole, and the seal ring bottom surface has not three little wire nails of conllinear in the inner part, and is identical with one group of little pore size distribution on the spool flange, the roundlet of two seal rings nail respectively with spool under two groups of aperture transition fit on the bottom flange, form integrated package two; When spool is cylindrical button shape ceramic core, seal ring and Spool assembly all are contained in a kind of framework, this framework bottom surface is a ring, protrude upward four contour ribs in the annulus outer rim perpendicular to the bottom surface, the lower end of every root fuses with going to the bottom, and there is snap close the upper end, and the upper end of four ribs is the opening end of framework, snap close can pin seal ring and the Spool assembly that is contained in the framework, forms integrated package two together.

7, a kind of bivalve control valve, form jointly by valve and common valve of easily replacing spool and seal ring according to claim 1, it is characterized in that: common valve can be a kind of in ball valve, gate valve, stopcock, the Valve with ceramic core, at entrance point, the valve of easily replacing spool and seal ring is at outlet end, both fuse by flexible connection, also can be directly totally one valve seat make one; Expose in common valve on the valve rod of valve seat and be equipped with, when common valve is opened, rotate between the lock tube and valve seat of easily replacing spool and seal ring valve, when common valve is closed, below locking plate whiz lock tube from locking plate from locking plate.

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