CN205781002U - A kind of floating ball valve - Google Patents
A kind of floating ball valve Download PDFInfo
- Publication number
- CN205781002U CN205781002U CN201620520534.1U CN201620520534U CN205781002U CN 205781002 U CN205781002 U CN 205781002U CN 201620520534 U CN201620520534 U CN 201620520534U CN 205781002 U CN205781002 U CN 205781002U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- spheroid
- valve body
- floating ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model proposes a kind of floating ball valve, including valve body, spheroid, valve rod and valve seat, sphere installation is in valve body, valve rod is connected with spheroid, spheroid two ends are provided with valve seat, valve seat is installed on valve body, and coordinate with ball seal, it is characterized in that: described valve seat is provided with male half coupling away from the axial end of spheroid, graphite circle has been gripped between described male half coupling and valve body, described valve seat and valve body along valve seat axial direction graphite circle is clamped time, described valve seat maintains gap away between the axial end of spheroid and valve body；On described valve seat, the external circumferential end face with valve body contact is provided with V-groove, described valve body is positioned at the position inside valve seat and is provided with the ring-type scraping blade being in close contact with spheroid.This utility model uses the graphite circle that will not lose efficacy to instead of the spring in conventional ball valve, efficiently solves the leakage hidden danger that spring brought because easily losing efficacy, it is provided that a kind of good airproof performance, the floating ball valve of valve seat length in service life.
Description
Technical field
This utility model relates to a kind of valve, particularly relates to a kind of floating ball valve.
Background technology
In valve, ball valve because performance is good, simple in construction, easy to operate be widely applied.Floating ball valve is a kind of spheroid
Can float, under pressure medium, spheroid can produce certain displacement, so that sealing is protected.Ball valve is generally at valve
Seat arranges spring behind, ensure that the valve seat of ball valve and spheroid can gluing, sealings closely by the compression pretightning force of spring.
Additionally, at different temperature, the size of ball valve parts can change because of expanding with heat and contract with cold, in order to prevent because of parts chi
Very little change and cause the stuck of valve, generally also need the behind at ball seat that spring is set.
The spring of ball valve is typically with cylindrically coiled spring or disk spring, compensates zero, valve by the dilatation of spring
The change in size of part, to prevent the stuck of valve.But after valve uses for a long time, cylindrically coiled spring can progressively lose change
Shape regulating power, when the temperature is changed, when particularly temperature raises, when the element size of valve becomes big, due to cylinder spiral shell
Rotation spring loses deformation-compensated ability, and the situations such as leakage can be caused to occur.
Existing typical case's floating ball valve, valve seat is plastic construction, and anti-scratch is not drawn, and valve seat is without dust-proof anti-slag structure, if defeated
Sending containing dust or sand grains in medium, sealing surface is easily scratched damage, seals and lost efficacy the most immediately.Therefore, existing ball-valve structure is not
Adapting to the environment of working media condition difference, service life is short.
Utility model content
Based on the problems referred to above, this utility model purpose is to provide a kind of pretightning force being supplied to valve seat to stablize, good airproof performance, valve
The floating ball valve of seat length in service life.
For problem above, it is provided that following technical scheme: a kind of floating ball valve, including valve body, spheroid, valve rod and valve seat,
Sphere installation is in valve body, and valve rod is connected with spheroid, and spheroid two ends are provided with valve seat, and valve seat is installed on valve body, and and spheroid
Seal and coordinate, it is characterised in that: described valve seat is provided with male half coupling away from the axial end of spheroid, described male half coupling and valve body it
Between gripped graphite circle, described valve seat and valve body along valve seat axial direction graphite circle is clamped time, described valve seat is away from spheroid
Axial end and valve body between maintain gap；On described valve seat, the external circumferential end face with valve body contact is provided with V-groove, institute
State be positioned on valve body the position inside valve seat be provided with and spheroid be in close contact ring-type scraping blade.
This utility model is further arranged to: described valve seat and graphite circle in the face that valve seat axial direction contacts for being mutually adapted and
The inclined-plane tilted inside graphite circle.
This utility model is further arranged to: described valve rod head install handle position be provided with switch lock fixed structure, described in open
Closing latch-up structure and include limiting plate and the spacer of 90 ° of switches, limiting plate is connected with valve body by securing member, is provided with confession simultaneously
The first hole, location that valve rod passes, described spacer is provided with the second hole, location passing for valve rod and being connected with valve rod, spacer
Being located at above limiting plate, described limiting plate is provided with two boss, and described boss is used for limiting the rotatable maximum angle of spacer
It it is 90 °.
This utility model is further arranged to: described securing member is the bolt that screw head is higher than spacer, and described boss can be by spiral shell
Nail head replaces.
This utility model is further arranged to: described spacer is provided with lockhole, and limiting plate is provided with two in valve on an off two
Through hole corresponding with lockhole during individual state, can lock corresponding lockhole and through hole when needed, prevent maloperation.
This utility model is further arranged to: described valve seat is that metal supports valve seat, and this metal supports the sealing on valve seat with spheroid
End face is provided with hard metal alloys sealing block.
The beneficial effects of the utility model: this utility model is mounted with the graphite circle that will not lose efficacy between valve seat and valve body, replace
Spring in conventional ball valve, thus efficiently solve the elastic force because spring is flexible for a long time and lost efficacy the leakage hidden danger brought, simultaneously
Play the effect of sealing；Arranging V-groove on valve seat can be that valve seat provides certain roundabout power thus enters one when contacting with spheroid
Step reduces the abrasion between spheroid and valve seat；Annular scraping blade is set and both can play the effect of initial sealing, simultaneously in ball valve switch process
In, play the effect in clean seal face, sweep clean sphere for final-stage seal, and block washing away of pumped (conveying) medium for final-stage seal.This
Outward, this utility model is also provided with accurate positioning and prevents the switch lock fixed structure of maloperation.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of floating ball valve in this utility model embodiment；
Fig. 2 is the structure for amplifying schematic diagram in Fig. 1 at A；
Fig. 3 is the structural representation of this utility model embodiment breaker in middle latch-up structure.
Figure is illustrated: 1-valve body；2-spheroid；3-valve rod；4-valve seat；41-axial end；411-inclined-plane；42-male half coupling；
43-V type groove；44-hard metal alloys sealing block；5-graphite circle；The ring-type scraping blade of 6-；7-switch lock fixed structure；71-limiting plate；
711-securing member；712-first positions hole；713-through hole；72-spacer；721-second positions hole；722-lockhole；8-locks；
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Following example
For this utility model is described, but it is not limited to scope of the present utility model.
As shown in Figures 1 and 2, a kind of floating ball valve, including valve body 1, spheroid 2, valve rod 3 and valve seat 4, spheroid 2 is installed
In valve body 1, valve rod 3 is connected with spheroid 2, and spheroid 2 two ends are provided with valve seat 4, and valve seat 4 is installed on valve body 1, and
Seal with spheroid 2 and coordinate, it is characterised in that: described valve seat 4 is provided with male half coupling 42 away from the axial end 41 of spheroid 2,
Having gripped graphite circle 5, described valve seat 4 and valve body 1 between described male half coupling 42 and valve body 1 will along valve seat 4 axial direction
When graphite circle 5 clamps, described valve seat 4 maintains gap away between the axial end 41 of spheroid 2 and valve body 1；Described valve seat 4
The upper external circumferential end face contacted with valve body 1 is provided with V-groove 43, and described valve body 1 is positioned at the position peace inside valve seat 4
Equipped with the ring-type scraping blade 6 being in close contact with spheroid 2.This utility model is mounted with to lose efficacy between valve seat 4 and valve body 1
Graphite circle 5, instead of the spring in conventional ball valve, thus efficiently solve the elastic force because spring is flexible for a long time and lost efficacy and brought
Reveal hidden danger, simultaneously work as the effect sealed；Arranging V-groove 43 on valve seat 4 can be that valve seat provides one when contacting with spheroid
Fixed roundabout power thus reduce the abrasion between spheroid 2 and valve seat 1 further；Annular scraping blade 6 is set and both can play initial sealing
Effect, simultaneously during ball valve switch, plays the effect in clean seal face, sweeps clean sphere for final-stage seal, and be that rear class is close
Envelope blocks washing away of pumped (conveying) medium.
As in figure 2 it is shown, described valve seat 4 and graphite circle 5 in the face that valve seat 4 axial direction contacts for being mutually adapted and to graphite
The inclined-plane 411 tilted inside circle 5.Described valve seat 4 supports valve seat for metal, and this metal supports the sealing on valve seat with spheroid 2
End face is provided with hard metal alloys sealing block 44.The setting on inclined-plane 411 can make graphite circle 5 be applied to the active force court of valve seat 4
Spheroid 2 direction, thus strengthen being in sealing contact between valve seat 4 and spheroid 2, improve sealing between the two；Metal supports valve
Seat and hard metal alloys sealing block 44 can make valve seat 4 abrasiveness in the case of using for a long time little, are unlikely to deform and rupture,
Service life is longer, better tightness.
As it is shown on figure 3, the position that described valve rod 3 head installs handle is provided with switch lock fixed structure 7, described switch locking knot
Structure 7 includes limiting plate 71 and the spacer 72 of 90 ° of switches, and limiting plate 71 is connected, simultaneously with valve body 1 by securing member 711
Being provided with the first hole 712, location passed for valve rod 3, described spacer 72 is provided with and passes for valve rod 3 and be connected with valve rod 3
Second location hole 721, spacer 72 is located at above limiting plate 71, and described limiting plate 71 is provided with two boss, described convex
It is 90 ° that platform is used for limiting the rotatable maximum angle of spacer 72, so that valve rod 3 coordinates spacer 72 to complete opening of valve
Close.In existing ball valve, the angle of valve rod 3 location changes, then spheroid 2 runner can be caused to produce certain with valve body 1 runner
Angle, thus affect the sealing in whole valve body 1.By boss, 90 ° of rotary switches of spacer 72 are accurately positioned,
Thus be effectively prevented and affect the location of valve rod 3 owing to the angle of spacer 72 changes, thus ensure the switch position of valve
Put accurate positioning, good airproof performance.Preferably, described securing member 711 is higher than the bolt arrangement of spacer 72, spiral shell for screw head
Limiting plate 71 is connected with valve body 1 by nail by screw, and the most described boss can be replaced by screw head.
Further, described spacer 72 is provided with lockhole 722, and limiting plate 71 is provided with two can be at two shapes of valve on an off
Through hole 713 corresponding with lockhole 722 during state, can lock 8 by corresponding lockhole 722 and through hole 713 when needed, prevent from grasping by mistake
The generation made.
The above is only preferred implementation of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and modification, this of above-mentioned hypothesis
A little improvement also should be regarded as protection domain of the present utility model with modification.
Claims (6)
1. a floating ball valve, including valve body, spheroid, valve rod and valve seat, sphere installation is in valve body, and valve rod is connected with spheroid
Connecing, spheroid two ends are provided with valve seat, and valve seat is installed on valve body, and coordinates with ball seal, it is characterised in that: described valve seat is remote
Axial end from spheroid is provided with male half coupling, has gripped graphite circle, described valve seat and valve between described male half coupling and valve body
Body along valve seat axial direction graphite circle is clamped time, described valve seat maintains gap away between the axial end of spheroid and valve body；Institute
State on valve seat the external circumferential end face with valve body contact and be provided with V-groove, described valve body is positioned at the position inside valve seat and installs
There is the ring-type scraping blade being in close contact with spheroid.
A kind of floating ball valve the most according to claim 1, it is characterised in that: described valve seat and graphite circle are in valve seat axially side
It it is the inclined-plane being mutually adapted and tilting inside graphite circle to the face contacted.
A kind of floating ball valve the most according to claim 1 and 2, it is characterised in that: described valve rod head installs the portion of handle
Position is provided with switch lock fixed structure, and described switch lock fixed structure includes limiting plate and the spacer of 90 ° of switches, and limiting plate is by tight
Firmware and valve body are connected, and are provided with the first hole, location passed for valve rod simultaneously, described spacer be provided with for valve rod through and with
The second hole, location that valve rod is connected, spacer is located at above limiting plate, and described limiting plate is provided with two boss, and described boss is used
Limiting the rotatable maximum angle of spacer is 90 °.
A kind of floating ball valve the most according to claim 3, it is characterised in that: described securing member is that screw head is higher than location
The bolt of sheet, described boss can be replaced by screw head.
A kind of floating ball valve the most according to claim 3, it is characterised in that: described spacer is provided with lockhole, limiting plate
It is provided with two through holes corresponding with lockhole when two states of valve on an off, can when needed corresponding lockhole and through hole be added
Lock, prevents maloperation.
A kind of floating ball valve the most according to claim 1, it is characterised in that: described valve seat is that metal supports valve seat, this gold
On genus support valve seat, the seal face with spheroid is provided with hard metal alloys sealing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520534.1U CN205781002U (en) | 2016-05-30 | 2016-05-30 | A kind of floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520534.1U CN205781002U (en) | 2016-05-30 | 2016-05-30 | A kind of floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781002U true CN205781002U (en) | 2016-12-07 |
Family
ID=58135393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620520534.1U Expired - Fee Related CN205781002U (en) | 2016-05-30 | 2016-05-30 | A kind of floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843814A (en) * | 2018-08-31 | 2018-11-20 | 江苏神通阀门股份有限公司 | A kind of sphere valve seat transition detaching structure |
| CN110410522A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of high pressure valve seat of fixed ball valve |
-
2016
- 2016-05-30 CN CN201620520534.1U patent/CN205781002U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843814A (en) * | 2018-08-31 | 2018-11-20 | 江苏神通阀门股份有限公司 | A kind of sphere valve seat transition detaching structure |
| CN110410522A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of high pressure valve seat of fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170530 |