CN208816728U - A kind of eccentric ball valve - Google Patents
A kind of eccentric ball valve Download PDFInfo
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- CN208816728U CN208816728U CN201821002307.5U CN201821002307U CN208816728U CN 208816728 U CN208816728 U CN 208816728U CN 201821002307 U CN201821002307 U CN 201821002307U CN 208816728 U CN208816728 U CN 208816728U
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- valve
- sphere
- sealing ring
- eccentric ball
- valve body
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Abstract
The utility model discloses a kind of eccentric ball valves, including valve rod, sphere, valve body, valve seat, sealing ring and pressing ring, sphere is connect with the intracorporal valve rod of valve is set to, valve seat is set on the limited step of valve body, and pressing ring is connected with valve body and compressing sealing ring makes sealing ring contact sealing with valve seat outer circle and valve block internal diameter surface.The utility model structure is simple and convenient to operate, is quick, it can be achieved that two way seal, sealing effect are good.
Description
Technical field
The utility model relates to a kind of eccentric ball valves.
Background technique
Eccentric ball valve is a kind of novel valve, be for solve fine solid particles shape medium and high-pressure delivery gas or
Technical problem in the conveying of the two-phases flow medium such as solution and ore pulp and the approved product developed, be chemical industry, petroleum, combustion gas,
Easy precipitating fouling, crystallization, precipitation in the industrial departments solution process process such as metallurgy, electric power, water conservancy etc. and influence pipe-line system
Normal operation provides reliable control valve.There is poor sealing effect in existing eccentric ball valve.
Summary of the invention
In order to solve the above-mentioned technical problem, it is simple to provide a kind of structure for the utility model, and easy to operate, quick, sealing can
A kind of eccentric ball valve leaned on.
The utility model is achieved through the following technical solutions:
A kind of eccentric ball valve, including valve rod, sphere, valve body, valve seat, sealing ring and pressing ring, sphere and are set in valve body
Valve rod connection, valve seat is set on the limited step of valve body, and pressing ring, which connect with valve body and compresses sealing ring, makes sealing ring and valve
Seat outer circle and the contact sealing of valve block internal diameter surface.
Further, spring is provided in the sealing ring.
Further, the sealing ring two sides are provided with the annular C-shaped channel of opening outwardly, and the spring is built in annular C
In type groove.
Further, the valve body uses integral structure.
Further, the valve rod is connect with the sphere bias.
Further, the contact surface of the valve seat and the sphere is equipped with hard alloy layer.
The utility model makes sealing ring and valve seat the utility model has the advantages that the utility model pressing ring connect with valve body and compresses sealing ring
Outer circle and the contact sealing of valve block internal diameter surface.The utility model new structure is simple and convenient to operate, fast, good airproof performance.
Detailed description of the invention
Fig. 1 is a kind of eccentric ball valve schematic cross-sectional view of the utility model；
Fig. 2 is a partial enlarged view of Figure 1；
Fig. 3 is a kind of eccentric ball valve sphere of the utility model and valve seat sectional arrangement drawing；
Wherein, 1- valve rod, 2- sphere, 3- valve body, 31- limited step, 4- valve seat, 5- sealing ring, 6- pressing ring, 7- spring.
Specific embodiment
As shown in Figure 1, 2, a kind of eccentric ball valve, including valve rod 1, sphere 2, valve body 3, valve seat 4, sealing ring 5 and pressing ring 6,
Sphere 2 is connect with the valve rod 1 being set in valve body 3, and valve seat 4 is set on the limited step 31 of valve body 3, and pressing ring 6 and valve body 3 connect
It connects and compressing sealing ring 5 makes sealing ring 5 contact sealing with 4 outer circle of valve seat and 3 inside diameter surface of valve body.Valve seat 4 connects with sphere 3
Contacting surface is equipped with hard alloy layer, which makes spherome surface wearability more preferable.
In the present embodiment, 5 two sides of sealing ring are provided with the annular C-shaped channel of opening outwardly, and two annular C-shaped channels are embedded in two
Spring 7.Spring 7, which is embedded in C-shaped channel, makes the outside deformation in C-shaped channel both sides make sealing ring 5 and 3 internal diameter of 4 outer circle of valve seat and valve body
Surface contact sealing, sealing effect are good.
In the present embodiment, valve body 3 uses integral structure.Valve body 3 is designed using integral structure, avoids latching mechanism
Disadvantage more than the outer leak source of valve body 3.Valve rod 1 is connect with sphere 2 using six square toes, and passes through pin locked.
In the present embodiment, as shown in figure 3, valve rod 1 is connect with 2 bias of sphere.The rotation center of sphere 2 is not in valve body 3
Center on, with the 3 runner center amount of offsetting b of valve body, there are offset a with the vertical centerline of valve body 3, thus really
When protecting sphere 2 from full open to contract fully, only at the last moment, sphere 2 and valve seat 4 are completely attached to.According to eccentric ball valve
Self character, valve rod 1 can persistently give 2 one eccentric forces of sphere, to guarantee that sphere 2 is pressed in always on 4 sealing surface of valve seat, realize
The two way seal performance of valve.
The utility model is the utility model has the advantages that 1,4 back side of the utility model valve seat is compacted under the effect of 6 direct pressure of pressing ring
, cannot be axially or radially movable on the limited step 31 of valve body 3, that is, after assembling, valve seat 4 be it is fixed, cannot produce
Raw displacement.
2, directly sealing uses Lip-seal sealing ring 5 for valve seat 4 and valve body 3, but when left side is into pressure, 5 inner ring of sealing ring
It is contacted respectively with 4 outer circle of valve seat and 3 inside diameter surface of valve body with outer peripheral surface, under the action of 57 pretightning force of contained spring of sealing ring
Contact is good, and when circle is internal pressure medium, the contact between 5 Internal and external cycle surface of sealing ring and each contact component more steps up
Close, to reach good sealing, reversely into when pressing, sealing principle is same as above.
3, when valve seat 4 is fixed, valve rod 1 is applied to the eccentric force on sphere 2 and realizes 4 sealing surface of valve seat and sphere 2
Sealing between spherical surface.
Technical solution provided by utility model embodiment is described in detail above, it is used herein specifically a
Example is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to help
Understand the principle of the utility model embodiment；At the same time, for those skilled in the art is implemented according to the utility model
Example, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be construed as
Limitation to utility model.
Claims (6)
1. a kind of eccentric ball valve, it is characterised in that: including valve rod, sphere, valve body, valve seat, sealing ring and pressing ring, sphere and setting
In valve intracorporal valve rod connection, valve seat is set on the limited step of valve body, pressing ring connect with valve body and compress sealing ring make it is close
Seal contacts sealing with valve seat outer circle and valve block internal diameter surface.
2. a kind of eccentric ball valve according to claim 1, it is characterised in that: be provided with spring in the sealing ring.
3. a kind of eccentric ball valve according to claim 2, it is characterised in that: the sealing ring two sides are provided with opening outwardly
Annular C-shaped channel, the spring is built in annular C-shaped channel.
4. a kind of eccentric ball valve according to claim 1, it is characterised in that: the valve body uses integral structure.
5. a kind of eccentric ball valve according to claim 1, it is characterised in that: the valve rod is connect with the sphere bias.
6. a kind of eccentric ball valve according to claim 1, it is characterised in that: the contact surface of the valve seat and the sphere is set
There is hard alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002307.5U CN208816728U (en) | 2018-06-27 | 2018-06-27 | A kind of eccentric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002307.5U CN208816728U (en) | 2018-06-27 | 2018-06-27 | A kind of eccentric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816728U true CN208816728U (en) | 2019-05-03 |
Family
ID=66270217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821002307.5U Active CN208816728U (en) | 2018-06-27 | 2018-06-27 | A kind of eccentric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816728U (en) |
-
2018
- 2018-06-27 CN CN201821002307.5U patent/CN208816728U/en active Active
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