CN206988466U - A kind of self sealss floating ball valve - Google Patents
A kind of self sealss floating ball valve Download PDFInfo
- Publication number
- CN206988466U CN206988466U CN201720813861.0U CN201720813861U CN206988466U CN 206988466 U CN206988466 U CN 206988466U CN 201720813861 U CN201720813861 U CN 201720813861U CN 206988466 U CN206988466 U CN 206988466U
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- Prior art keywords
- valve
- barrel
- spheroid
- valve barrel
- floating ball
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Abstract
The utility model belongs to floating ball valve technical field, discloses a kind of self sealss floating ball valve, for solving the problems, such as the easy seal failure of sealing and operating difficulties between existing valve rod and valve body.The utility model includes left valve barrel and right valve barrel, left valve barrel and right valve barrel are respectively arranged with feed pathway and liquid outlet channel, the left valve barrel and right valve barrel link together and form valve pocket, spheroid is provided with the valve pocket, seal receptacle is provided with the left valve barrel and right valve barrel, valve rod is connected with spheroid, the connector for sealing is connected between spheroid and valve rod, the connector includes connection body, the upper end of connection body is provided with top boss, the periphery of connection body is arranged with the back-moving spring that connection body can be driven to be stretched in the stepped hole of spheroid, the top surface of the connection body offers the locating groove for being mutually clamped with the locator protrusions of valve rod lower end.
Description
Technical field
The utility model belongs to floating ball valve technical field, and in particular to a kind of self sealss floating ball valve.
Background technology
The spheroid of floating ball valve is to float, and under the pressure of medium, spheroid can produce certain displacement and be pressed on out
On the sealing surface at mouth end, ensure port of export sealing, floating ball valve is mainly characterized by compact-sized, sealed reliable itself, structure
Simply, easy to maintenance, sealing surface, often in closure state, is not easy, by medium erosion, easily operated and maintenance, to be applied to sphere
The general work medium such as water, solvent.
Technical literature in the prior art on floating ball valve is also more, such as Application No. 201320647336.8
Utility model patent discloses a kind of floating ball valve, including the spheroid in outside valve body, valve body, valve body include upstream valve body with
Downstream valve body, upstream valve body are provided with entrance, and downstream valve body is provided with outlet, and entrance and exit is interconnected, and spheroid is arranged at upstream
In the valve pocket that valve body is formed with downstream valve body, the valve pocket between spheroid and upstream valve body is provided with upstream seal close to porch
Seat, the close exit of the valve pocket between spheroid and downstream valve body is provided with downstream seal seat；Upstream seal seat and downstream seal
The inside of seat is embedded with elastic expansion ring, and spheroid is close to upstream seal seat and downstream seal seat.
The utility model patent of Application No. 201420651570.2 discloses a kind of floating ball valve, including valve body, spheroid,
Valve seat, bonnet, spheroid is loaded in valve body, and spheroid both ends are provided with valve seat, and valve seat is installed on bonnet, screw thread between bonnet and valve body
Connection；Valve seat one end and spheroid fitted seal, the other end abut compression spring, and compression spring is fixedly mounted on bonnet；Bonnet
The upper positive stop lug boss for setting limitation valve seat to be moved under compression spring effect to spheroid direction；Set between compression spring and valve seat
Spring base.
The utility model patent of Application No. 201620065518.8 discloses a kind of floating ball valve, including valve body, spheroid,
Valve rod and handle, spheroid are arranged in valve body, and the lower end of valve rod is fixedly connected through valve body and with spheroid, and handle is arranged on valve rod
Upper end, the both sides of valve body are respectively and fixedly provided with side pipe, and the inner of side pipe is located in valve body, set between spheroid and side pipe flexible close
Seal structure, elastic sealing structure include valve seat, skeleton, the first O-ring and disc spring, and skeleton is arranged on the outside of valve seat, valve seat
Periphery is provided with seal groove, and the first O-ring is arranged in seal groove and for being sealed between valve seat and side pipe, disc spring to be arranged on
The outside of skeleton, the both ends of disc spring are held out against respectively to be brought into close contact on the skeleton and side pipe and outer surface of promotion valve seat and spheroid.
The utility model patent of Application No. 201620106571.8 discloses a kind of floating ball valve, including valve body, valve seat,
Spheroid and valve rod, in valve body, valve rod is connected sphere installation with spheroid, and spheroid both ends are provided with valve seat, and valve seat is installed on valve body
On, and coordinate with ball seal, placed cavity is provided between valve body and valve seat, is placed with placed cavity and spheroid and valve seal
The sealing block made of elastomeric material coordinated, the pretension provided valve seat along valve seat axial direction is provided between valve seat and valve body
The spring of power, spring are arranged on valve body, and spring base is provided between spring and valve seat, and sealing block side is resisted against on valve seat, and
The active force along valve seat axial direction applied by valve seat；Valve body is provided with spring mounting groove, and spring is installed on spring installation
In groove, and spring outer diameter is equal with the internal diameter of spring mounting groove, to avoid spring unstable or in valve body interior edge valve seat radial direction side
To movement；The pressure releasing hole of connection body cavity and placed cavity is offered on valve body, to avoid valve body and sealing block by high pressure disruption.
The utility model patent of Application No. 201620313578.7 discloses a kind of floating ball valve, including valve body, spheroid,
Valve seat and valve rod, in valve body, valve rod is connected sphere installation with spheroid, and spheroid both ends are provided with valve seat, and valve seat is installed on valve body,
And contacted with ball seal, the spring that the pretightning force along valve seat axial direction can be provided, valve seat are provided between valve seat and valve body
The side contacted with ball seal caves inward to form annular groove, is provided with annular groove and valve seat and ball seal cooperation
O-ring seal, the side of O-ring seal is resisted against annular groove bottom, and by valve seat apply along valve seat axial direction side
To power, the face that annular groove bottom and O-ring seal lean is spherical, the centre of sphere of spherical and the centre of sphere weight of spheroid
Close, the projection of oriented its centre of sphere direction extension is set on spherical.
Existing ball valve, the sealing for valve rod are all to use sealing ring and packing seal form, this sealing means
On the one hand because sealing ring and the sealing area of packing seal are larger, and sealing ring needs pretightning force with packing seal, causes
The frictional force of valve rod is very big, causes inconvenient for operation；Easily there is seal failure in the form of this valve rod excircle sealing simultaneously
And the problem of leaking.
Utility model content
The utility model is in order to solve the easy seal failure of sealing between existing valve rod and valve body and operating difficulties
Problem, and a kind of self sealss floating ball valve is provided, the sealing area between valve rod and valve body on the one hand can be reduced, improves operation
Convenience；On the other hand self-sealing function can be realized, improves the performance of sealing.
To solve technical problem, technical scheme is used by the utility model：
A kind of self sealss floating ball valve, including left valve barrel and right valve barrel, left valve barrel and right valve barrel are respectively arranged with feed liquor and led to
Road and liquid outlet channel, the left valve barrel and right valve barrel are linked together and form valve pocket, and spheroid is provided with the valve pocket, described
Seal receptacle is provided with left valve barrel and right valve barrel, is connected with valve rod on spheroid, it is characterised in that be connected between spheroid and valve rod
For the connector of sealing, the connector includes connection body, and the upper end for connecting body is provided with top boss, connects body
Periphery be arranged with can drive connection body in the stepped hole of spheroid stretch back-moving spring, it is described connection body top surface
The locating groove for being mutually clamped with the locator protrusions of valve rod lower end is offered, top boss offers annular groove, annular
The sealing device sealed against each other for left valve barrel, right valve barrel and valve rod and top boss is installed in groove.
The sealing device includes on left valve barrel and right valve barrel and is set in the upper crushing block of valve rod periphery, described
The bottom of annular groove is provided with lower crushing block, and X-type elastic sealing strip is provided between upper crushing block and lower extruding soon.
The upper surface of the X-type elastic sealing strip is higher than the upper surface of top boss.
The upper surface of the top boss offers sealed groove, and sealing gasket is provided with the sealed groove.
The excircle of sealed groove and valve rod cooperates.
Compared with prior art, the utility model has the advantages that：
Self sealss floating ball valve provided by the utility model is in installation process, and connection body is in the presence of back-moving spring
In depression and stepped hole, back-moving spring will connect body ejection after installation, by locator protrusions with being connected after valve rod installation
Locating groove on body is mutually clamped, and realizes the connection between connection body and valve rod, and pushed away in the presence of back-moving spring
The sealing between left valve barrel, right valve barrel, valve rod and top boss is realized in dynamic sealing device crimp；When the high pressure liquid in valve body
When body medium is transported to the lower surface of top boss, the X-type elastic sealing strip deformation in sealing device, X-type elasticity are continued to press on
Diaphragm seal is pressed further by completing sealing function.Therefore the utility model is to work as to have valve body to be closed in use
When, the extruding that X-type elastic sealing strip is subject to comes from back-moving spring and realizes sealing, the X-type bullet when valve body is in opening
The extruding that property diaphragm seal is subject to comes from back-moving spring and high-pressure liquid medium and realizes sealing, therefore X-type elastic sealing strip
Use state is consistent with the working condition of valve body, therefore the utility model has the characteristics of good sealing effect.
The utility model changes the seal form of valve rod simultaneously, and the sealing surface of valve rod is top boss in use
Face, compared to prior art use packing seal form, the sealing of valve rod is reduced in the case of identical seal pressure
Area, consequently facilitating improving the convenience of operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial enlarged drawing schematic diagram at A in Fig. 1；
Marked in figure：1st, left valve barrel, 2, right valve barrel, 3, feed pathway, 4, liquid outlet channel, 5, spheroid, 6, seal receptacle, 7, valve
Bar, 8, sealed connecting component, 9, control-rod, 10, connection main body, 11, back-moving spring, 12, stepped hole, 13, top boss, 14, fixed
Position neck, 15, lower crushing block, 16, X-type elastic sealing strip, 17, upper crushing block, 18, sealing gasket, 19, locator protrusions.
Embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
Type part of the embodiment, it is not whole embodiments.Based on the embodiment in the utility model, the ordinary skill people of this area
Other embodiments used that member is obtained under the premise of creative work is not made, belong to protection model of the present utility model
Enclose.
With reference to accompanying drawing, self sealss floating ball valve provided by the utility model includes left valve barrel 1 and right valve barrel 2, the He of left valve barrel 1
Right valve barrel 2 is respectively arranged with feed pathway 3 and liquid outlet channel 4, and feed pathway and liquid outlet channel are respectively used to the disengaging of liquid, and
Spheroid 5 controls the connected state of feed pathway 3 and liquid outlet channel 4, and the left valve barrel 1 and right valve barrel 2 link together and formed
Valve pocket, spheroid 5 is provided with the valve pocket, be provided with the left valve barrel 1 and right valve barrel 2 for being sealed against each other with spheroid 5
Seal receptacle 6, valve rod 7 is connected with spheroid 5, valve rod is connected with control-rod 9, and the rotation of spheroid 5 is driven by control-rod 9, so as to
Control the connected state of feed pathway 3 and liquid outlet channel 4；The connector 8 for sealing is connected between spheroid 5 and valve rod 7,
The connector 8 includes connection body 10, and the upper end of connection body 10 is provided with top boss 13, the periphery set of connection body 10
Provided with the back-moving spring 11 that connection body 10 can be driven to be stretched in the stepped hole 13 of spheroid 5, wherein under connection body 10
End is fixedly connected with back-moving spring 5, and the lower end of back-moving spring 11 is fastened on the bottom surface of stepped hole 13, the connection body
10 top surface offers the locating groove 14 for being mutually clamped with the locator protrusions 10 of the lower end of valve rod 7, and top boss 13 opens up
There is annular groove, be provided with annular groove and sealed against each other for left valve barrel 1, right valve barrel 2 and valve rod 7 and top boss 13
Sealing device.
As a kind of preferable mode of the utility model, sealing device includes on left valve barrel 1 and right valve barrel 2 and covered
The upper crushing block 17 of the periphery of valve rod 7 is located at, the bottom of the annular groove is provided with lower crushing block 15, and upper crushing block 17 squeezes with lower
X-type elastic sealing strip 16 is installed between pressing fast 15.Wherein left valve barrel and right valve barrel are offered for installing extruding fast 17
The shaft shoulder.
In order to improve the compressional deformation amount of X-type elastic sealing strip, the upper surface of the X-type elastic sealing strip 16 to greatest extent
Higher than the upper surface of top boss 13.
As a kind of preferable mode of the utility model, the upper surface of the top boss 13 offers sealed groove, institute
State and sealing gasket 18 is installed in sealed groove, realize that second seals by sealing gasket 18, further improve the performance of sealing.
As a kind of preferable mode of the utility model, the excircle of sealed groove and valve rod 7 cooperates.
Self sealss floating ball valve provided by the utility model is in installation process, and connection body is in the presence of back-moving spring
In depression and stepped hole, back-moving spring will connect body ejection after installation, by locator protrusions with being connected after valve rod installation
Locating groove on body is mutually clamped, and realizes the connection between connection body and valve rod, and pushed away in the presence of back-moving spring
The sealing between left valve barrel, right valve barrel, valve rod and top boss is realized in dynamic sealing device crimp；When the high pressure liquid in valve body
When body medium is transported to the lower surface of top boss, the X-type elastic sealing strip deformation in sealing device, X-type elasticity are continued to press on
Diaphragm seal is pressed further by completing sealing function.Therefore the utility model is to work as to have valve body to be closed in use
When, the extruding that X-type elastic sealing strip is subject to comes from back-moving spring and realizes sealing, the X-type bullet when valve body is in opening
The extruding that property diaphragm seal is subject to comes from back-moving spring and high-pressure liquid medium and realizes sealing, therefore X-type elastic sealing strip
Use state is consistent with the working condition of valve body, therefore the utility model has the characteristics of good sealing effect.
The utility model changes the seal form of valve rod and (it is close to make existing excircle seal form into plane simultaneously
Envelope), flat seal is more prone to realize reliable sealing property relative to excircle sealing, particularly in high pressure place；Simultaneously
The sealing surface of valve rod is the face of top boss in use, compared to the form that prior art uses packing seal, in phase
The sealing area of valve rod is reduced in the case of with seal pressure, consequently facilitating improving the convenience of operation.
Claims (5)
1. a kind of self sealss floating ball valve, including left valve barrel and right valve barrel, left valve barrel and right valve barrel are respectively arranged with feed pathway
And liquid outlet channel, the left valve barrel and right valve barrel are linked together and form valve pocket, and spheroid, the left side are provided with the valve pocket
Seal receptacle is provided with valve body and right valve barrel, is connected with valve rod on spheroid, it is characterised in that use is connected between spheroid and valve rod
In the connector of sealing, the connector includes connection body, and the upper end for connecting body is provided with top boss, connects body
Periphery is arranged with the back-moving spring that connection body can be driven to be stretched in the stepped hole of spheroid, and the top surface of the connection body is opened
Provided with the locating groove for being mutually clamped with the locator protrusions of valve rod lower end, top boss offers annular groove, and annular is recessed
The sealing device sealed against each other for left valve barrel, right valve barrel and valve rod and top boss is installed in groove.
2. self sealss floating ball valve according to claim 1, it is characterised in that the sealing device includes being arranged on left valve
On body and right valve barrel and the upper crushing block of valve rod periphery is set in, the bottom of the annular groove is provided with lower crushing block, upper to squeeze
X-type elastic sealing strip is installed between briquetting and lower extruding are fast.
3. self sealss floating ball valve according to claim 2, it is characterised in that the upper surface of the X-type elastic sealing strip
Higher than the upper surface of top boss.
4. self sealss floating ball valve according to claim 1, it is characterised in that the upper surface of the top boss offers
Sealed groove, sealing gasket is installed in the sealed groove.
5. self sealss floating ball valve according to claim 4, it is characterised in that the excircle of sealed groove and valve rod is mutual
Coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813861.0U CN206988466U (en) | 2017-07-06 | 2017-07-06 | A kind of self sealss floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813861.0U CN206988466U (en) | 2017-07-06 | 2017-07-06 | A kind of self sealss floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988466U true CN206988466U (en) | 2018-02-09 |
Family
ID=61403857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720813861.0U Expired - Fee Related CN206988466U (en) | 2017-07-06 | 2017-07-06 | A kind of self sealss floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953660A (en) * | 2018-08-30 | 2018-12-07 | 昆山维萨阀门有限公司 | A kind of Bidirectional hard seal floating ball valve |
| CN110030398A (en) * | 2019-05-13 | 2019-07-19 | 苏州工业园区思达德阀门有限公司 | A kind of accurate control ball valve of pneumatic limit |
-
2017
- 2017-07-06 CN CN201720813861.0U patent/CN206988466U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953660A (en) * | 2018-08-30 | 2018-12-07 | 昆山维萨阀门有限公司 | A kind of Bidirectional hard seal floating ball valve |
| CN110030398A (en) * | 2019-05-13 | 2019-07-19 | 苏州工业园区思达德阀门有限公司 | A kind of accurate control ball valve of pneumatic limit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20200706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |