CN203374872U - Valve base sealing structure of ball valve - Google Patents
Valve base sealing structure of ball valve Download PDFInfo
- Publication number
- CN203374872U CN203374872U CN201320397514.6U CN201320397514U CN203374872U CN 203374872 U CN203374872 U CN 203374872U CN 201320397514 U CN201320397514 U CN 201320397514U CN 203374872 U CN203374872 U CN 203374872U
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- valve
- ring
- seal ring
- sealing
- ball
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Abstract
The utility model relates to a valve base sealing structure of a ball valve. The valve base sealing structure comprises a valve ball, a valve base, a valve body and a disc spring, wherein the valve base is arranged in the valve body, the valve ball is coaxially and rotationally arranged in the valve base, a sealing structure is arranged between the valve base and the valve body, and the disc spring is arranged between the sealing structure and the valve body in an abutting mode. The sealing structure is composed of an inner sealing ring, an inner pressing ring, an outer sealing ring and an outer pressing ring, wherein the inner sealing ring, the inner pressing ring, the outer sealing ring and the outer pressing ring are arranged in sequence from inside to outside, the contact surface of the inner sealing ring and the inner pressing ring is an inwardly inclined surface, and the contact surface of the outer sealing ring and the outer pressing ring is an outwardly inclined surface. The valve base sealing structure is scientific in design and simple in structure, has a good sealing function, enables the opening-closing torque of the valve to be small, moves flexibly, works reliably, and is widely used for various valve base sealing structures.
Description
Technical field
The utility model belongs to valve field, especially a kind of valve base sealing structure of ball valve.
Background technique
Now general ball seat sealing configuration as shown in Figure 2, the installation of this structure is simple, but seal ring is thicker, need to make seal ring produce larger decrement makes the distortion that the seal ring axial expansion is amplified just can reach sealing effect, the seal ring decrement greatly also can cause the valve operation moment of torsion larger, and sealing effect is poor, life of valve is short.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and the valve base sealing structure of the ball valve of a kind of simple in structure, easy for installation, flexible movements, reliable operation is provided.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of valve base sealing structure of ball valve, comprise valve ball, valve seat, valve body, belleville spring, valve seat is installed in valve body, in this valve seat, coaxial rotation is equipped with a valve ball, , between valve seat and valve body, sealing configuration is installed, also be top-loaded with belleville spring between sealing configuration and valve body, it is characterized in that: described sealing configuration is by inner seal ring, inner pressure ring, exterior seal ring and outer press ring form, this inner seal ring, inner pressure ring, exterior seal ring and outer press ring be radially order installation successively from inside to outside, and the surface of contact of inner seal ring and inner pressure ring is an introversion inclined-plane, surface of contact between exterior seal ring and outer press ring is a reverse flare inclined-plane.
And the true dip direction on the flare inclined-plane of the surface of contact between the surface of contact of described inner seal ring and inner pressure ring between introversion inclined-plane and exterior seal ring and outer press ring is contrary and angle of inclination is identical.
Advantage of the present utility model and good effect are:
1, this valve base sealing structure consists of inner seal ring, inner pressure ring, exterior seal ring and the outer press ring that order press-fits successively, thereby inner seal ring under pressure along the inner pressure ring inclined-plane to bottom offset with the valve seat press seal, thereby exterior seal ring under pressure along the outer press ring inclined-plane to top offset with the valve body press seal, with existing sealing configuration, compare, amount of deformation is little and more enough reach better sealing effect, reduce pressure on top surface simultaneously, reduce the valve switch moment of torsion, increase operating flexibility when guaranteeing valve seal.
2, the utility model design science, simple in structure, has good sealing function, makes the valve switch moment of torsion little, flexible movements, and reliable operation, be widely used in multiple valve base sealing structure.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the prior art structural representation.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of valve base sealing structure of ball valve, comprise valve ball 1, valve seat 2, valve body 8, belleville spring 7, valve seat is installed in valve body, in this valve seat, coaxial rotation is equipped with a valve ball, in order to guarantee the sealing between valve seat and valve body, between valve seat and valve body, sealing configuration is installed, also is top-loaded with belleville spring between sealing configuration and valve body, keep pretightening force and the compensation deformation of sealing configuration.
Innovative point of the present utility model is:
Described sealing configuration consists of inner seal ring 3, inner pressure ring 4, exterior seal ring 5 and outer press ring 6, this inner seal ring, inner pressure ring, exterior seal ring and outer press ring be radially order installation successively from inside to outside, and the surface of contact of inner seal ring and inner pressure ring is an introversion inclined-plane, as shown in Figure 1, the surface of contact between exterior seal ring and outer press ring is a reverse flare inclined-plane.
For the pressure that guarantees upper and lower both sides is identical, the true dip direction on the flare inclined-plane of the surface of contact between the surface of contact of described inner seal ring and inner pressure ring between introversion inclined-plane and exterior seal ring and outer press ring is contrary and angle of inclination is identical.
Working principle of the present invention is:
After installation, spheroid contacts and compresses with valve seat and reaches sealing effect, belleville spring is exerted pressure to outer press ring, this pressure ecto-entad passes to outer press ring successively, exterior seal ring, inner pressure ring and inner seal ring, angle as shown in drawings, thereby inner seal ring under pressure along the inner pressure ring inclined-plane to bottom offset with the valve seat press seal, thereby exterior seal ring under pressure along the outer press ring inclined-plane to top offset with the valve body press seal, with existing sealing configuration, compare, amount of deformation is little and more enough reach better sealing effect, reduce pressure on top surface simultaneously, reduce the valve switch moment of torsion, increase operating flexibility when guaranteeing valve seal.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (2)
1. the valve base sealing structure of a ball valve, comprise valve ball, valve seat, valve body, belleville spring, valve seat is installed in valve body, in this valve seat, coaxial rotation is equipped with a valve ball, , between valve seat and valve body, sealing configuration is installed, also be top-loaded with belleville spring between sealing configuration and valve body, it is characterized in that: described sealing configuration is by inner seal ring, inner pressure ring, exterior seal ring and outer press ring form, this inner seal ring, inner pressure ring, exterior seal ring and outer press ring be radially order installation successively from inside to outside, and the surface of contact of inner seal ring and inner pressure ring is an introversion inclined-plane, surface of contact between exterior seal ring and outer press ring is a reverse flare inclined-plane.
2. the valve base sealing structure of ball valve according to claim 1 is characterized in that: the true dip direction on the flare inclined-plane of the surface of contact between the surface of contact of described inner seal ring and inner pressure ring between introversion inclined-plane and exterior seal ring and outer press ring is contrary and angle of inclination is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320397514.6U CN203374872U (en) | 2013-07-05 | 2013-07-05 | Valve base sealing structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320397514.6U CN203374872U (en) | 2013-07-05 | 2013-07-05 | Valve base sealing structure of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374872U true CN203374872U (en) | 2014-01-01 |
Family
ID=49837401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320397514.6U Withdrawn - After Issue CN203374872U (en) | 2013-07-05 | 2013-07-05 | Valve base sealing structure of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374872U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363146A (en) * | 2013-07-05 | 2013-10-23 | 天津百利展发集团有限公司 | Valve seat seal structure of ball valve |
| CN105240561A (en) * | 2015-09-16 | 2016-01-13 | 浙江贝托阀门有限公司 | Piston type floating ball valve |
| DE102021106134A1 (en) | 2021-03-12 | 2022-09-15 | Woco Industrietechnik Gmbh | rotary piston seal |
-
2013
- 2013-07-05 CN CN201320397514.6U patent/CN203374872U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363146A (en) * | 2013-07-05 | 2013-10-23 | 天津百利展发集团有限公司 | Valve seat seal structure of ball valve |
| CN103363146B (en) * | 2013-07-05 | 2015-11-18 | 天津百利展发集团有限公司 | The valve base sealing structure of ball valve |
| CN105240561A (en) * | 2015-09-16 | 2016-01-13 | 浙江贝托阀门有限公司 | Piston type floating ball valve |
| CN105240561B (en) * | 2015-09-16 | 2017-07-21 | 浙江贝托阀门有限公司 | Piston type floating ball valve |
| DE102021106134A1 (en) | 2021-03-12 | 2022-09-15 | Woco Industrietechnik Gmbh | rotary piston seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |