CN211649123U - Low-torque floating ball valve with sectional type transition spherical surface - Google Patents
Low-torque floating ball valve with sectional type transition spherical surface Download PDFInfo
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- CN211649123U CN211649123U CN201922119155.8U CN201922119155U CN211649123U CN 211649123 U CN211649123 U CN 211649123U CN 201922119155 U CN201922119155 U CN 201922119155U CN 211649123 U CN211649123 U CN 211649123U
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Abstract
The utility model discloses a low moment of torsion and have unsteady ball valve of sectional type transition sphere, its technical scheme main points are low moment of torsion and have unsteady ball valve of sectional type transition sphere, including valve body, valve rod, spheroid, be equipped with inflow passageway and outflow passageway on the valve body, be equipped with the valve pocket between inflow passageway and the outflow passageway, the spheroid is established in the valve pocket, is close to inflow passageway and outflow passageway end and all is equipped with the valve seat, be equipped with the valve seat sealing face on the valve seat, be equipped with sectional type transition sphere on the spheroid, sectional type transition sphere contacts with the valve seat sealing face and constitutes sphere and circular arc convex surface contact seal structure, still be equipped with the valve rod hole on the valve body, valve rod one end is worn out the valve body hole and is connected with drive arrangement, and the other end forms circumferential location connection structure with the; the utility model discloses simple structure, manufacturing process is simple, and the leakproofness is good, and the moment of torsion is low, the switch is smooth, long service life.
Description
Technical Field
The utility model relates to a mechanical valve field, more specifically the ball valve that floats that relates to a low moment of torsion and have sectional type transition sphere that says so.
Background
In the prior art, the ball valve is mainly used for cutting, distributing and changing the flow direction of a medium, the floating ball valve in the prior art mainly comprises a valve body, a ball body, a valve rod, a wrench and the like, the general prior art is shown in figure 6, the sealing surface of a valve seat is of a planar structure, and great friction force exists between the ball body and the valve seat, so that the torque is large and the switch is not smooth, and in addition, the general prior art has the problems of complicated structure, large volume, complicated manufacturing process, great abrasion of the sealing surface, short service life and the like, at present, the Chinese utility model with the publication number of CN205841831U discloses a low-torque ball valve, although a certain gap is reserved between the valve seat and the valve cover, after the valve is assembled and locked, a certain space is reserved when the valve seat is extruded by the ball body, and a part of the compression amount of the valve seat is changed into elastic deformation, make the moment of torsion reduce greatly, however, disk seat and spheroidal contact surface all are the plane, and the sealed face of disk seat and spheroid contact is too big for frictional force strengthens, and easy wearing and tearing make the switch not smooth, and this utility model is sealed not enough, lead to the ball valve to leak outward easily.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a low moment of torsion just has unsteady ball valve of sectional type transition sphere, this low moment of torsion just has unsteady ball valve of sectional type transition sphere, simple structure, manufacturing process is simple, and the leakproofness is good, and the moment of torsion is low, the switch is smooth, long service life.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a low moment of torsion just has unsteady ball valve of sectional type transition sphere, includes valve body, valve rod, spheroid, is equipped with inflow channel and outflow passageway on the valve body, is equipped with the valve pocket between inflow channel and the outflow passageway, the spheroid is established in the valve pocket, is close to inflow channel and outflow passageway end and all is equipped with the disk seat, be equipped with the sealed face of disk seat on the disk seat, be equipped with sectional type transition sphere on the spheroid, sectional type transition sphere and the sealed face contact of disk seat constitute sphere and circular arc convex surface contact seal structure, still be equipped with the valve rod hole on the valve body, valve rod one end is worn out the valve body hole and is connected with drive arrangement, the other end with flat notch plug-in.
Technical scheme more than adopting, the utility model has the advantages of it is following:
the valve seat of the utility model is provided with the valve seat sealing surface, the ball body is provided with the sectional type transition spherical surface, the sectional type transition spherical surface is contacted with the valve seat sealing surface to form a spherical surface and arc convex surface contact sealing structure, after the sealing surface is contacted and extruded with the spherical surface, the contact surface is small, so that the friction force is reduced, the torque fluctuation in the switching process is also reduced, and in addition, the sealing property between the ball body and the valve body is also enhanced; the valve body is also provided with a valve rod hole, one end of the valve rod penetrates out of the valve body hole to be connected with the driving device, and the other end of the valve rod is connected with the flat notch on the ball body in an inserting mode to form a circumferential positioning connection structure.
Furthermore, the sectional type transition spherical surface is composed of a first cambered surface, a second cambered surface and a third cambered surface, the first cambered surface, the second cambered surface and the third cambered surface are three sections of cambered surfaces with different radians, wherein the first cambered surface is close to the ball opening, one end of the second cambered surface is connected with the first cambered surface, and the other end of the second cambered surface is connected with the third cambered surface to form a radian included angle, so that the ball valve cannot be blocked in the switching process.
Technical scheme more than adopting, the utility model has the advantages of it is following:
the utility model discloses a setting of the cambered surface of the different radians of three-section for the ball valve keeps smooth at the switch in-process, can not appear blocking the phenomenon.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a low torque floating ball valve with segmented transition spheres;
FIG. 2 is a schematic view of a sphere;
FIG. 3 is an enlarged view at C;
FIG. 4 is an enlarged schematic view at A;
FIG. 5 is a schematic view of a valve seat;
FIG. 6 is a schematic view of a prior art valve seat.
Reference numerals: 1. a valve body; 3. a valve stem; 4. a valve cavity; 5. a sphere; 51. a sectional transition spherical surface; 511. a first arc surface; 512. a second arc surface; 513. a third cambered surface; 6. a valve seat; 61. a valve seat sealing surface.
Detailed Description
Example 1:
when the floating ball valve is in a closed state, as shown in fig. 1, the floating ball valve with low torque and the segmented transition spherical surface comprises a valve body 1, a valve rod 3 and a ball body 5, wherein an inflow channel and an outflow channel are arranged on the valve body 1, a valve cavity 4 is arranged between the inflow channel and the outflow channel, the ball body 5 is arranged in the valve cavity 4, valve seats 6 are arranged at the ends close to the inflow channel and the outflow channel, a valve seat sealing surface 61 is arranged on the valve seat 6, the segmented transition spherical surface 51 is arranged on the ball body 5, the segmented transition spherical surface 51 is in contact with the valve seat sealing surface 61 to form a spherical surface and arc convex surface contact sealing structure, a valve rod hole is further arranged on the valve body 1, one end of the valve rod 3 penetrates out of the valve body hole to be connected with.
Through the arrangement, the valve seat sealing surface 61 is arranged on the valve seat 6, the sectional transition spherical surface 51 is arranged on the ball body 5, the sectional transition spherical surface 51 is contacted with the valve seat sealing surface 61 to form a spherical surface and arc convex surface contact sealing structure, after the sealing surface is contacted and extruded with the spherical surface, the contact surface is small, so that the friction force is reduced, the torque fluctuation in the switching process is also reduced, and in addition, the sealing property between the ball body 5 and the valve body 1 is also enhanced; the valve body 1 is also provided with a valve rod hole, one end of the valve rod 3 penetrates out of the valve body hole to be connected with the driving device, and the other end of the valve rod is connected with the flat notch on the ball body 5 in an inserting mode to form a circumferential positioning connection structure.
As shown in fig. 2 and 3, the sectional transition spherical surface 51 is composed of a first arc surface 511, a second arc surface 512, and a third arc surface 513, and the first arc surface 511, the second arc surface 512, and the third arc surface 513 are three arc surfaces with different radians, wherein the first arc surface 511 is close to the ball opening, one end of the second arc surface 512 is connected to the first arc surface 511, and the other end is connected to the third arc surface 513 to form an included angle, so that the ball valve is not blocked during the opening and closing process.
Through the setting, the utility model discloses a setting of the cambered surface of the different radians of three-section for the ball valve keeps smooth at the switch in-process, can not appear the card phenomenon of hindering.
Example 2
When the ball valve that floats is in the open mode, spheroid 5 carries out the rotation in a circumferential direction 90, a low moment of torsion just has the ball valve that floats of sectional type transition sphere, including valve body 1, valve rod 3, spheroid 5, be equipped with inflow channel and outflow passageway on the valve body 1, be equipped with valve pocket 4 between inflow channel and the outflow passageway, spheroid 5 is established in valve pocket 4, it all is equipped with disk seat 6 to be close to inflow channel and outflow passageway end, be equipped with the sealed face 61 of disk seat on the disk seat 6, be equipped with sectional type transition sphere 51 on the spheroid 5, sectional type transition sphere 51 constitutes sphere and circular arc convex surface contact seal structure with the sealed face 61 contact of disk seat, still be equipped with the valve rod hole on the valve body 1, valve rod 3 one end is worn out the valve body hole and is connected with drive arrangement, the.
Through the arrangement, the valve seat sealing surface 61 is arranged on the valve seat 6, the sectional transition spherical surface 51 is arranged on the ball body 5, the sectional transition spherical surface 51 is contacted with the valve seat sealing surface 61 to form a spherical surface and arc convex surface contact sealing structure, after the sealing surface is contacted and extruded with the spherical surface, the contact surface is small, so that the friction force is reduced, the torque fluctuation in the switching process is also reduced, and in addition, the sealing property between the ball body 5 and the valve body 1 is also enhanced; the valve body 1 is also provided with a valve rod hole, one end of the valve rod 3 penetrates out of the valve body hole to be connected with the driving device, and the other end of the valve rod is connected with the flat notch on the ball body 5 in an inserting mode to form a circumferential positioning connection structure.
As shown in fig. 2 and 3, the sectional transition spherical surface 51 is composed of a first arc surface 511, a second arc surface 512, and a third arc surface 513, and the first arc surface 511, the second arc surface 512, and the third arc surface 513 are three arc surfaces with different radians, wherein the first arc surface 511 is close to the ball opening, one end of the second arc surface 512 is connected to the first arc surface 511, and the other end is connected to the third arc surface 513 to form an included angle, so that the ball valve is not blocked during the opening and closing process.
Through the setting, the utility model discloses a setting of the cambered surface of the different radians of three-section for the ball valve keeps smooth at the switch in-process, can not appear the card phenomenon of hindering.
Claims (2)
1. A low-torque floating ball valve with a sectional transition spherical surface comprises a valve body (1), a valve rod (3) and a ball body (5), wherein an inflow channel and an outflow channel are arranged on the valve body (1), a valve cavity (4) is arranged between the inflow channel and the outflow channel, the ball body (5) is arranged in the valve cavity (4), it is characterized in that valve seats (6) are arranged at the ends close to the inflow channel and the outflow channel, valve seat sealing surfaces (61) are arranged on the valve seats (6), the sphere (5) is provided with a sectional transition spherical surface (51), the sectional transition spherical surface (51) is contacted with the valve seat sealing surface (61) to form a spherical surface and arc convex surface contact sealing structure, the valve body (1) is also provided with a valve rod hole, one end of the valve rod (3) penetrates out of the valve body hole to be connected with a driving device, and the other end of the valve rod is connected with a flat groove opening on the ball body (5) in an inserting mode to form a circumferential positioning connection structure.
2. The floating ball valve with the low torque and the sectional transition spherical surface according to claim 1, wherein the sectional transition spherical surface (51) is composed of a first arc surface (511), a second arc surface (512) and a third arc surface (513), the first arc surface (511), the second arc surface (512) and the third arc surface (513) are three arc surfaces with different radians, wherein the first arc surface (511) is close to the ball joint, one end of the second arc surface (512) is connected with the first arc surface (511), and the other end of the second arc surface is connected with the third arc surface (513) to form an included angle, so that the ball valve cannot be blocked in the opening and closing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119155.8U CN211649123U (en) | 2019-12-02 | 2019-12-02 | Low-torque floating ball valve with sectional type transition spherical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119155.8U CN211649123U (en) | 2019-12-02 | 2019-12-02 | Low-torque floating ball valve with sectional type transition spherical surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211649123U true CN211649123U (en) | 2020-10-09 |
Family
ID=72694059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922119155.8U Active CN211649123U (en) | 2019-12-02 | 2019-12-02 | Low-torque floating ball valve with sectional type transition spherical surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211649123U (en) |
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2019
- 2019-12-02 CN CN201922119155.8U patent/CN211649123U/en active Active
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