CN208474542U - The ball seal structure of ball valve - Google Patents
The ball seal structure of ball valve Download PDFInfo
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- CN208474542U CN208474542U CN201821035656.7U CN201821035656U CN208474542U CN 208474542 U CN208474542 U CN 208474542U CN 201821035656 U CN201821035656 U CN 201821035656U CN 208474542 U CN208474542 U CN 208474542U
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Abstract
The utility model relates to a kind of ball valve, in particular to the ball seal structure of a kind of ball valve.A kind of technical solution are as follows: ball seal structure of ball valve, it include valve body, the medium input being connect with valve body or output channel, being located between medium input or output channel on valve body has connecting cavity, sphere is equipped in connecting cavity, runner is offered on sphere, seal valve seat is equipped between sphere and medium input or output channel, seal valve seat has primary sealing area and secondary sealing area, the conflict end face being connected vertical with secondary sealing area is inputted towards medium on seal valve seat or output channel is arranged, elasticity, which is equipped with, between the conflict end face of seal valve seat and medium input or output channel contradicts seal assembly, elastic seal assembly includes cyclic annular pressing plate and elastic component.By adopting the above technical scheme, a kind of leakproofness stabilization, long service life, the ball seal structure of the simple ball valve of structure are provided.
Description
Technical field
The utility model relates to a kind of ball valve, in particular to the ball seal structure of a kind of ball valve.
Background technique
Ball valve is a kind of shut-off valve, the medium input connecting mainly by valve body with valve body or output channel (medium input
Or pass through ring flange between output channel and valve body and connect), it is located on valve body to have between the input of Jie's medium or output channel and connects
Chamber is connect, sphere is equipped in connecting cavity, the runner for promoting that medium inputs or output channel is connected is offered on sphere；Valve body is equipped with
Extend to the driving source in connecting cavity and with the valve rod of sphere linkage and driving stem.Medium enters pipeline and medium effuser road
Seal valve seat is provided between sphere.
One end of seal valve seat and the outer peripheral surface gluing, sealing of sphere, the other end are then bonded with medium input or output channel
Sealing.If leaking at the seal valve seat, then ball valve can not normal use.
However, traditional seal valve seat is rubber seal ring or teflon seal ring, have and sphere outer peripheral surface
The primary sealing area and medium of gluing, sealing input or the secondary sealing area of the inner wall of output channel sealing, with the on seal valve seat
The end face and medium that two sealing surfaces are vertically connected input or output channel contradicts.Such seal valve seat is through use after a period of time
Afterwards, with the forfeiture of its material elastic force itself, leakage, the unstable situation of leakproofness be will lead to.
Summary of the invention
In view of the deficienciess of the prior art, the utility model provides a kind of leakproofness stabilization, long service life, structure
The ball seal structure of simple ball valve.
To achieve the goals above, the utility model provides following technical solution: a kind of ball seal structure of ball valve,
It include valve body, the medium connecting with valve body inputs or output channel, is located between medium input or output channel on valve body and has
Have a connecting cavity, sphere be equipped in connecting cavity, offered on sphere and medium is promoted to input or the runner of output channel conducting, sphere with
Seal valve seat is equipped between medium input or output channel, seal valve seat has the first sealing with sphere outer peripheral surface gluing, sealing
The secondary sealing area of face and medium input or the inner wall sealing of output channel, it is vertical with secondary sealing area on seal valve seat to be connected
End face is contradicted towards medium input or output channel setting, it is characterised in that: the conflict end face of the seal valve seat and medium
It is equipped with elasticity between input or output channel and contradicts seal assembly, which includes to be in contradict end face and medium
Cyclic annular pressing plate between input or output channel and the elastic component between cyclic annular pressing plate and medium input or output channel.
By adopting the above technical scheme, close by the way that elasticity conflict is arranged between seal valve seat and medium input or output channel
Sealing assembly.Ring-type pressing plate therein supports pressing plate implementation by elastic component as supporting element is contradicted to seal valve seat implementation support
Touching, promotes seal valve seat by lasting elastic conflict power, so that the outer peripheral surface with sphere keeps close gluing, sealing.Even if
By prolonged use itself elastic force it is impaired after, still there is enough elastic forces to promote close between sphere
Envelope, keeps leakproofness more stable, is not in leakage.
The utility model is further arranged to: medium input or output channel towards sphere one end offer supply plate and
The placing groove that elastic component is placed, the pressing plate includes annular body, and sealing ring is equipped between annular body and sphere, described
Elastic component be set between annular body and medium input or output channel, and elastic component includes at least two springs.
By adopting the above technical scheme, on medium input or output channel placing groove setting convenient for pressing plate and elastic component peace
Dress makes pressing plate and elastic component have relatively stable installation located space, is not in displacement after installation；Annular body and sphere
Between the setting of sealing ring have the function of auxiliary seal, further prevent from leaking at this；In annular body and medium
At least two springs are set between input or output channel, improves elastic conflict power, promotes between seal valve seat and sphere
Leakproofness is protected.
The utility model is further set to: annular projection, annular projection are provided in the middle part of annular body outer peripheral surface
Axial ends be respectively provided with the first cyclic annular installation space and the second cyclic annular installation space, the sealing ring are provided close to sphere
The first cyclic annular installation space in, the first spring, the medium input or defeated are equipped in the described second cyclic annular installation space
Second spring is equipped between pipeline and the annular body of pressing plate out.
By adopting the above technical scheme, it is arranged so rationally distributed, structure is simple.
The utility model is further set to: the first spring holder is set in the second cyclic annular installation space, the first spring
Outer diameter is resilient conflict with the side wall of annular projection and medium input or output channel respectively.
By adopting the above technical scheme, the first spring contradicts end as elasticity using outer diameter, and not only elastic conflict power is stablized, and
And the elastic force of the spring is not easy to lose, long service life.
The utility model is further set to: the end face that medium inputs or output channel is bonded with the annular body of pressing plate
On offer annular recess, the second spring is in the annular recess, and second spring is the corrugated bullet in cross section
Property steel wire, the elasticity that step has the annular body of several and pressing plate to contradict on elastic wire contradict point and with medium input or defeated
If the dry elasticity that pipeline contradicts out contradicts point.
By adopting the above technical scheme, since the size for opening up annular recess in medium input or output channel has centainly
It is required that the side wall that then will lead to annular recess is thinning if annular recess is too wide.In high pressure operating condition, it is easy to cause the side wall
Rupture.Using undulatory elastic wire as second spring, not only its section is small, can be placed on lesser annular recess
It is interior, while its elastic force is big, can meet and keep stable elastic conflict power to seal valve seat in high pressure operating condition.
The utility model is further described with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the portion the I enlarged diagram of Fig. 1；
Fig. 3 is the stereoscopic schematic diagram of pressing plate in the utility model embodiment；
Fig. 4 is the stereoscopic schematic diagram of second spring in the utility model embodiment.
Specific embodiment
It include valve body 1, the medium being connect with valve body 1 such as a kind of Fig. 1-ball seal structure of ball valve shown in Fig. 4
Input or output channel 2, being located on valve body 1 between medium input or output channel 2 has connecting cavity 11, is equipped in connecting cavity 11
Sphere 3, the runner 31 for promoting that medium inputs or output channel 2 is connected is offered on sphere 3, and sphere 31 and medium are inputted or exported
Seal valve seat 4 is equipped between pipeline 2, seal valve seat 4 has the primary sealing area 41 and medium with 3 outer peripheral surface gluing, sealing of sphere
The secondary sealing area 42 of the inner wall of input or output channel 2 sealing, on seal valve seat 4 it is vertical with secondary sealing area 42 be connected support
Contravention face 43 is inputted towards medium or output channel 2 is arranged, and the conflict end face 43 of seal valve seat 4 is inputted with medium or output channel
It is equipped with elasticity between 2 and contradicts seal assembly 5, which includes to input or defeated in contradicting end face 43 and medium
Cyclic annular pressing plate 51 between pipeline 2 and the elastic component between cyclic annular pressing plate 51 and medium input or output channel 2 out.It is above-mentioned
In scheme, pass through the setting elasticity conflict seal assembly 5 between seal valve seat 4 and medium input or output channel 2.Ring therein
Shape pressing plate 51 is implemented to contradict, promotes to seal by elastic component as supporting element is contradicted to the implementation support of seal valve seat 4 to pressing plate 51
Valve seat 4 is by lasting elastic conflict power, so that the outer peripheral surface with sphere 3 keeps close gluing, sealing.Even across it is long when
Between the elastic force using itself it is impaired after, still there is enough elastic forces to promote the sealing between sphere 3, make to seal
Property it is more stable, be not in leakage.
In the utility model embodiment, one end of medium input or output channel 2 towards sphere 3 offers supply plate 51
And the placing groove 21 that elastic component is placed, pressing plate 51 includes annular body 511, and sealing is equipped between annular body 511 and sphere 3
Circle 6.The setting of placing groove 21 makes pressing plate 511 and elastic component have relatively stable peace convenient for the installation of pressing plate 511 and elastic component
Bit space is set, is not in displacement after installation.In order to make seal valve seat 4 that there is stable elastic conflict power.Elastic component is set to
Between annular body 511 and medium input or output channel 2, and elastic component includes at least two springs.
Annular projection 512, annular projection are provided in the middle part of 511 outer peripheral surface of annular body in the utility model embodiment
512 axial ends is respectively provided with the first cyclic annular installation space 513 and the second cyclic annular installation space 514, sealing ring 6 are provided close to
In the cyclic annular installation space 513 of the first of sphere 3, the first spring 7, medium input or defeated are equipped in the second cyclic annular installation space 514
Second spring 8 is equipped between pipeline 2 and the annular body 511 of pressing plate 51 out.First spring, 7 disk is set to the second cyclic annular installation space
In 514, the outer diameter of the first spring 7 is resilient conflict with the side wall of annular projection 512 and medium input or output channel 2 respectively.
First spring 7 contradicts end as elasticity using outer diameter, and not only elastic conflict power is stablized, but also the elastic force of the spring is not easy to lose
It loses, long service life.
The end that medium input or output channel 2 in the utility model embodiment are bonded with the annular body 511 of pressing plate 51
Annular recess 22 is offered on face, second spring 8 is in the annular recess 22.Due in medium input or output channel 2
The size tool for opening up annular recess 22 there are certain requirements, if annular recess 22 is too wide, then will lead to the side wall of annular recess 22
It is thinning.In high pressure operating condition, it is easy to cause the sidewall rupture.Second spring 8 in the utility model embodiment is in for cross section
Undulatory elastic wire, the elasticity that step has the annular body 511 of several and pressing plate 51 to contradict on elastic wire contradict point
If 81 and the dry elasticity conflict point 81 with medium input or the conflict of output channel 2.Not only its section is small for the elastic wire, can be put
It is placed in lesser annular recess 22, while its elastic force is big, can meet and stable is kept to seal valve seat 4 in high pressure operating condition
Elastic conflict power.
If the first spring 7 and second spring 8 may respectively be common spring, and respectively it should be noted that design allows
It can implement to contradict by outer diameter.Or first spring 7 and second spring 8 be respectively undulatory elastic wire and feasible.
Referring to after the utility model embodiment, the selection mode to spring is just achievable without paying creative labour.
Claims (5)
1. a kind of ball seal structure of ball valve, includes valve body, the medium input connecting with valve body or output channel, on valve body
There is connecting cavity between medium input or output channel, sphere is equipped in connecting cavity, is offered on sphere and promotes medium defeated
Enter or the runner of output channel conducting, is equipped with seal valve seat between sphere and medium input or output channel, seal valve seat has
The secondary sealing area of the inner wall sealing of the input of primary sealing area and medium or output channel with sphere outer peripheral surface gluing, sealing, it is close
The conflict end face being connected vertical with secondary sealing area on valve seat is sealed to be arranged towards medium input or output channel, it is characterised in that:
Elasticity is equipped between the conflict end face of the seal valve seat and medium input or output channel and contradicts seal assembly, and the elasticity is close
Sealing assembly includes in the cyclic annular pressing plate contradicted between end face and medium input or output channel and to be set to cyclic annular pressing plate and be situated between
Elastic component between matter input or output channel.
2. the ball seal structure of ball valve according to claim 1, it is characterised in that: the medium input or efferent duct
One end of road towards sphere offers the placing groove that supply plate and elastic component are placed, and the pressing plate includes annular body, ring
Sealing ring is equipped between shape ontology and sphere, the elastic component is set between annular body and medium input or output channel,
And elastic component includes at least two springs.
3. the ball seal structure of ball valve according to claim 2, it is characterised in that: the annular body outer peripheral surface
Middle part is provided with annular projection, and the axial ends of annular projection is respectively provided with the first cyclic annular installation space and the second cyclic annular installation is empty
Between, the sealing ring is provided close in the first cyclic annular installation space of sphere, is equipped in the described second cyclic annular installation space
First spring is equipped with second spring between the medium input or output channel and the annular body of pressing plate.
4. the ball seal structure of ball valve according to claim 3, it is characterised in that: first spring holder is set to the
In two cyclic annular installation spaces, the outer diameter of the first spring is resilient with the side wall of annular projection and medium input or output channel respectively
It contradicts.
5. the ball seal structure of ball valve according to claim 3 or 4, it is characterised in that: the medium input or defeated
Annular recess is offered on the end face that pipeline is bonded with the annular body of pressing plate out, the second spring is in the annular recess
Interior, second spring is the corrugated elastic wire in cross section, and step has several annular bodies with pressing plate on elastic wire
If the dry elasticity that the elasticity of conflict contradicts point and contradicts with medium input or output channel contradicts point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035656.7U CN208474542U (en) | 2018-07-02 | 2018-07-02 | The ball seal structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035656.7U CN208474542U (en) | 2018-07-02 | 2018-07-02 | The ball seal structure of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474542U true CN208474542U (en) | 2019-02-05 |
Family
ID=65212358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821035656.7U Active CN208474542U (en) | 2018-07-02 | 2018-07-02 | The ball seal structure of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474542U (en) |
-
2018
- 2018-07-02 CN CN201821035656.7U patent/CN208474542U/en active Active
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