CN212080219U - Deformed spherical eccentric rigid line sealing valve - Google Patents
Deformed spherical eccentric rigid line sealing valve Download PDFInfo
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- CN212080219U CN212080219U CN201922413486.2U CN201922413486U CN212080219U CN 212080219 U CN212080219 U CN 212080219U CN 201922413486 U CN201922413486 U CN 201922413486U CN 212080219 U CN212080219 U CN 212080219U
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Abstract
The utility model relates to a deformation spherical surface eccentric rigid line sealing valve. The valve comprises a valve body, a valve rod and an opening and closing part, wherein a sealing ring is arranged on one side of the opening and closing part, a valve seat is arranged in the valve body, a sharp corner is arranged on the inner side edge of an inner ring of the valve seat, a sealing surface is arranged on the outer diameter of the sealing ring, a linear sealing pair is formed by the sharp corner and the sealing surface, an annular groove is arranged on the outer end surface of the valve seat, an elastic end is arranged between the annular groove and the inner diameter of the valve seat, the sealing surface is a curved surface, the radial cross section of the sealing surface is a perfect circle cross section, an included angle a is formed between an oblique line. The utility model discloses simple structure reduces and opens and close moment, and the disk seat is difficult for wearing and tearing, is convenient for strike off sealed face medium crystallization, and is sealed effectual, long service life.
Description
Technical Field
The utility model relates to a valve especially relates to a warp eccentric rigidity line sealing valve of sphere.
Background
The ball valve and the butterfly valve are two kinds of valves which are most widely applied and used in the prior valves, are simple and easy to operate, and play a role in stopping and cutting off pipeline media. Ball valve, the open-close piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves. The butterfly valve is also called flap valve, is a simple regulating valve, mainly composed of valve body, valve rod, butterfly plate and sealing ring. The valve body is cylindrical, the axial length is short, and a butterfly plate is arranged in the valve body. The existing butterfly plate or ball valve is serious in abrasion, large in bearing pressure, poor in sealing performance, large in opening and closing torque and short in service life, a medium is crystallized between the valve seat and the opening and closing piece to influence the sealing effect, and the sealing surface of the valve seat in the valve body is easy to abrade to influence the sealing effect.
SUMMERY OF THE UTILITY MODEL
To the above defect, the utility model aims to provide a simple structure reduces and opens and close moment, and the disk seat is difficult for wearing and tearing, is convenient for strike off sealed face medium crystallization, and is sealed effectual, long service life's a deformation spherical surface eccentric rigidity line sealing valve.
Therefore, the utility model adopts the technical proposal that:
the sealing device comprises a valve body, a valve rod and an opening and closing part, wherein the opening and closing part is positioned in the valve body, the valve rod is fixedly connected with the opening and closing part, one side of the opening and closing part is provided with an annular step, a sealing ring is arranged on the annular step and is fixed on the opening and closing part through a pressing ring, a valve seat is arranged in the valve body and is an annular steel plate, the inner wall of the valve body is provided with an annular boss, the valve seat is clamped outside the annular boss, the inner side edge of the inner ring of the valve seat is provided with a sharp corner, the outer diameter of the sealing ring is provided with a sealing surface, the sharp corner and the sealing surface form a linear sealing pair, the outer side of the valve seat is provided with a top ring, the outer side of the top ring is provided with a lifting ring, a plurality of countersunk screw holes are uniformly formed in the lifting ring, countersunk screws are arranged in the, the inner end face of the top ring corresponding to the elastic end is provided with an inclined plane, the sealing surface is a curved surface, the radial section of the sealing surface is a perfect circle section, an inclined line formed by the circle center of the perfect circle section forms an included angle a with the center line of the valve runner, the plane formed by the inclined line and the center line of the valve runner is perpendicular to the axis of the valve rod, the axis of the valve rod is eccentrically arranged with the center line of the valve runner, the circle center of one radial section, far away from the valve rod, of all the radial sections of the sealing surface is also on the center line of the valve runner, when the inclined line is superposed with the center line of the valve runner, the sealing surface is a spherical surface.
As a further improvement of the technical scheme, the opening and closing piece is a butterfly plate.
As a further improvement of the above technical solution, the opening and closing member is a ball.
As a further improvement of the technical scheme, a sealing gasket is arranged between the valve seat and the annular boss.
The utility model has the advantages that:
the utility model has simple structure, by adopting the structure of the utility model, the problem of non-uniformity of each point of the sealing surface under pressure is solved, the problem of deformation and leakage caused by non-uniform stress of the sealing surface at high temperature and low temperature is realized, the opening and closing torque can be reduced, the sealing performance is good, and the service life of the valve is prolonged; the disk seat adopts annular steel sheet, and the closed angle that the inner ring of disk seat was equipped with forms the line pair of sealing with the sealed face of sealing ring, is convenient for strike off the medium crystallization on the sealing ring, and is sealed effectual, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a in fig. 1.
In the figure, 1 is a valve body, 2 is a valve rod, 3 is a starting and closing piece, 4 is a sealing ring, 5 is a pressing ring, 6 is a valve seat, 7 is an annular boss, 8 is a sharp angle, 9 is a top ring, 10 is a hanging ring, 11 is a countersunk head screw, 12 is an annular groove, 13 is an elastic end, 14 is an oblique line, 15 is a valve flow passage central line, 16 is a valve rod axial line, 17 is a sphere center, and 18 is a sealing gasket.
Detailed Description
A deformed spherical eccentric rigid line sealing valve comprises a valve body 1, a valve rod 2 and an opening and closing part 3, wherein the opening and closing part 3 is positioned in the valve body 1, the valve rod 2 is fixedly connected with the opening and closing part 3, one side of the opening and closing part 3 is provided with an annular step, a sealing ring 4 is installed on the annular step, the sealing ring 4 is fixed on the opening and closing part 3 through a pressing ring 5, a valve seat 6 is arranged in the valve body 1, the valve seat 6 is an annular steel plate, the inner wall of the valve body 1 is provided with an annular boss 7, the valve seat 6 is clamped outside the annular boss 7, the inner side edge of the inner ring of the valve seat 6 is provided with a sharp corner 8, the outer diameter of the sealing ring 4 is provided with a sealing surface, the sharp corner 8 and the sealing surface form a sealing pair, the outer side of the valve seat 6 is provided with a top ring 9, the outer side of the top ring 9 is, the end of the countersunk head screw 11 is abutted against the top ring 9, the outer end face of the valve seat 6 is provided with an annular groove 12, an elastic end 13 is arranged between the annular groove 12 and the inner diameter of the valve seat 6, the inner end face of the top ring 9 corresponding to the elastic end 13 is provided with an inclined plane, the sealing surface is a curved surface, the radial section of the sealing surface is a perfect circle section, an inclined line 14 formed by the center of the perfect circle section forms an included angle a with a valve runner center line 15, a plane formed by the inclined line 14 and the valve runner center line 15 is vertical to a valve rod axial lead 16, the valve rod axial lead 16 is eccentrically arranged with the valve runner center line 15, the center of one radial section far away from the valve rod 2 in all the radial sections of the sealing surface is also on the valve runner center line 15, when the inclined line 14 coincides with the valve flow channel centre line 15, the sealing surface is spherical, the sealing ring 4 is part of a sphere, and the sphere centre 17 of the sphere is on the valve flow channel centre line 15.
As a further improvement of the above technical solution, the opening and closing member 3 is a butterfly plate.
As a further improvement of the above technical solution, the opening and closing member 3 is a sphere.
As a further improvement of the technical scheme, a sealing gasket 18 is arranged between the valve seat 6 and the annular boss 7.
And in all radial sections of the sealing surface of the sealing ring, the circle center of the radial section far away from the valve rod, namely the circle center of the leftmost end surface of the sealing ring, is positioned on the central line of the valve flow channel.
By adopting the structure of the utility model, the problem of uneven pressure of each point of the sealing surface is solved, the problem of deformation and leakage caused by uneven stress of the sealing surface at high temperature and low temperature is realized, the opening and closing torque can be reduced, the sealing performance is good, and the service life of the valve is prolonged; the disk seat adopts annular steel sheet, and the closed angle that the inner ring of disk seat was equipped with forms the line pair of sealing with the sealed face of sealing ring, is convenient for strike off the medium crystallization on the sealing ring, and is sealed effectual, long service life.
It is to be emphasized that: the above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A deformed spherical eccentric rigid line sealing valve comprises a valve body, a valve rod and an opening and closing part, wherein the opening and closing part is positioned in the valve body, the valve rod is fixedly connected with the opening and closing part, one side of the opening and closing part is provided with an annular step, a sealing ring is arranged on the annular step and is fixed on the opening and closing part through a pressing ring, a valve seat is arranged in the valve body, the deformed spherical eccentric rigid line sealing valve is characterized in that the valve seat is an annular steel plate, the inner wall of the valve body is provided with an annular boss, the valve seat is clamped outside the annular boss, the inner side edge of the inner ring of the valve seat is provided with a sharp corner, the outer diameter of the sealing ring is provided with a sealing surface, the sharp corner and the sealing surface form a linear sealing pair, the outer side of the valve seat is provided with a top ring, the outer side of the top ring is provided, the outer end face of the valve seat is provided with an annular groove, an elastic end is arranged between the annular groove and the inner diameter of the valve seat, the inner end face of the top ring corresponding to the elastic end is provided with an inclined plane, the sealing surface is a curved surface, the radial section of the sealing surface is a perfect circle section, an inclined line formed by the circle center of the perfect circle section forms an included angle a with the central line of the valve flow channel, the plane formed by the inclined line and the central line of the valve flow channel is perpendicular to the axis of the valve rod, the axis of the valve rod is eccentrically arranged with the central line of the valve flow channel, the circle center of one radial section, far away from the valve rod, of all radial sections of the sealing surface is also on the central line of the valve flow channel, when the inclined line is superposed.
2. A deformed spherical eccentric rigid wire seal valve according to claim 1, wherein said closure member is a butterfly plate.
3. A deformed spherical eccentric rigid wire seal valve according to claim 1, wherein said closure member is a ball.
4. A deformed spherical eccentric rigid wire seal valve according to claim 1, wherein a seal gasket is provided between the valve seat and the annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413486.2U CN212080219U (en) | 2019-12-29 | 2019-12-29 | Deformed spherical eccentric rigid line sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413486.2U CN212080219U (en) | 2019-12-29 | 2019-12-29 | Deformed spherical eccentric rigid line sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080219U true CN212080219U (en) | 2020-12-04 |
Family
ID=73566102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922413486.2U Active CN212080219U (en) | 2019-12-29 | 2019-12-29 | Deformed spherical eccentric rigid line sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212080219U (en) |
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2019
- 2019-12-29 CN CN201922413486.2U patent/CN212080219U/en active Active
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