CN216479046U - Eccentric half ball valve - Google Patents
Eccentric half ball valve Download PDFInfo
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- CN216479046U CN216479046U CN202123297453.XU CN202123297453U CN216479046U CN 216479046 U CN216479046 U CN 216479046U CN 202123297453 U CN202123297453 U CN 202123297453U CN 216479046 U CN216479046 U CN 216479046U
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Abstract
The utility model provides an eccentric half-ball valve relates to valve technical field. The valve comprises a valve body, an upper valve rod, a lower valve rod, an upper shaft sleeve, a lower shaft sleeve, a valve cover, an eccentric hemisphere and a valve body pressing seat, wherein coaxial through holes are formed in the top surface and the bottom surface of the valve body; the valve body sealing ring is arranged between the spherical crown and the valve body sealing seat, and the valve body sealing seat is tightly connected with the valve body pressing seat, so that the sealing performance of the integral eccentric half-ball valve is further improved.
Description
Technical Field
The utility model relates to the technical field of valves, particularly, relate to an eccentric hemisphere valve.
Background
The eccentric half ball valve is a novel ball valve type, and has certain advantages unique to the structure of the eccentric half ball valve, such as no friction on the switch, difficult abrasion on the seal and small opening and closing torque. This reduces the size of the actuator to be fitted. And a multi-rotation electric actuating mechanism is matched, so that the adjustment and the tight cutting of the medium can be realized. The device is widely applicable to working conditions of strict cutting requirements such as petroleum, chemical engineering, urban water supply and drainage and the like.
The sealing structure of the eccentric half-ball valve in the prior art only adopts the O-shaped rubber sealing ring to seal between the valve seat and the valve plate, the self elasticity of the rubber sealing ring realizes sealing, the defect of unreliable sealing exists, and the sealing performance is poor.
Therefore, in view of the shortcomings of the prior art, it is desirable to provide an eccentric half ball valve with a simple structure that can solve the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an eccentric half-ball valve, it can be to the weak point among the prior art, proposes the solution, has simple structure, and sealing performance is excellent, characteristics such as sealed effectual.
The embodiment of the utility model is realized like this:
an eccentric half ball valve comprises a valve body, an upper valve rod, a lower valve rod, an upper shaft sleeve, a lower shaft sleeve, a valve cover, an eccentric half ball body and a valve body pressing seat, the top surface and the bottom surface of the valve body are provided with coaxial through holes, the upper valve rod and the lower valve rod are respectively arranged in the through holes on the top surface and the bottom surface of the valve body through the upper shaft sleeve and the lower shaft sleeve, the eccentric hemispheroid is arranged in the valve body, the top end and the bottom end of the valve body are respectively connected with the upper valve rod and the lower valve rod, the valve body pressing seat is arranged at the outlet end of the valve body, the valve body pressing seat also comprises a spherical crown, a spherical crown pressing ring, a valve body sealing ring and a valve body sealing seat, the outer ring of the spherical surface of the eccentric hemisphere is provided with a step gap, the spherical crown is arranged on the step gap through a spherical crown pressure ring, the valve body sealing seat is arranged at the outlet end of the valve body close to the valve body pressing seat, and the valve body sealing ring is arranged between the valve body pressing seat and the spherical crown.
In some embodiments of the present invention, the longitudinal section of the valve body sealing ring is T-shaped, the bottom of the vertical end of the valve body sealing ring is close to one side of the spherical cap is provided with a first inclined plane attached to the spherical cap.
In some embodiments of the present invention, the first inclined surface has an inclination angle ranging from 41 ° to 43 °.
In some embodiments of the present invention, the upper end of the first inclined plane is connected to a second inclined plane which is inclined to the left along the axial line of the longitudinal section of the first inclined plane, and the inclination angle of the second inclined plane ranges from 14 ° to 15 °.
The utility model discloses an in some embodiments, the valve body sealing washer is close to one side of valve body seal receptacle is equipped with first step face, the valve body seal receptacle is close to one side of valve body sealing washer be equipped with the second step face of first step face adaptation.
In some embodiments of the present invention, the first step surface includes a third inclined surface and a fourth inclined surface, the third inclined surface and the fourth inclined surface all incline to the right along the central axis of the longitudinal section thereof, and are connected in sequence from bottom to top.
In some embodiments of the present invention, an inclination angle of the third inclined plane ranges from 69 ° to 71 °, and an inclination angle of the fourth inclined plane ranges from 9 ° to 11 °.
In some embodiments of the present invention, the valve body sealing seat and the contact surface of the valve body pressing seat are provided with a sealing groove, and an O-shaped sealing ring is arranged in the sealing groove.
In some embodiments of the present invention, the valve body sealing ring is made of rubber.
In some embodiments of the present invention, the valve cover is fixedly connected to the valve body through a bolt.
Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:
the utility model has simple structure, excellent sealing performance and good integral sealing effect; through the valve body, the upper valve rod, the lower valve rod, the upper shaft sleeve, the lower shaft sleeve, the valve cover, the eccentric hemisphere and the valve body pressing seat, the top surface and the bottom surface of the valve body are provided with coaxial through holes, the upper valve rod and the lower valve rod are respectively arranged in the through holes on the top surface and the bottom surface of the valve body through the upper shaft sleeve and the lower shaft sleeve, the eccentric hemispheroid is arranged in the valve body, the top end and the bottom end of the valve body are respectively connected with the upper valve rod and the lower valve rod, the valve body pressing seat is arranged at the outlet end of the valve body, the valve body pressing seat also comprises a spherical crown, a spherical crown pressing ring, a valve body sealing ring and a valve body sealing seat, the outer ring of the spherical surface of the eccentric hemisphere is provided with a step gap, the spherical crown is arranged on the step gap through a spherical crown pressure ring, the valve body sealing seat is arranged at the outlet end of the valve body close to the valve body pressing seat, and the valve body sealing ring is arranged between the valve body pressing seat and the spherical crown; the utility model discloses a ball crown with set up the valve body sealing washer between the valve body seal receptacle, the valve body seal receptacle with seat zonulae occludens is pressed to the valve body, realizes the ball crown with relative sealing between the valve body seal receptacle, no matter be forward pressure-bearing or reverse pressure-bearing, the valve body sealing washer receive the extrusion respectively with the ball crown with the laminating of valve body seal receptacle further improves the sealing performance of whole eccentric hemisphere valve.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of an overall structure of an eccentric half ball valve according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural diagram of the valve body sealing ring according to the embodiment of the present invention.
Reference numerals: 1. a spherical cap; 2. a spherical crown compression ring; 3. a valve body sealing ring; 4. a valve body seal seat; 5. a valve body pressing seat; 6. an eccentric hemisphere; 7. a first inclined surface; 8. a second inclined surface; 9. a third inclined surface; 10. a fourth inclined surface; 11. an O-shaped sealing ring; 12. a valve body; 13. an upper valve stem; 14. a lower valve stem; 15. an upper shaft sleeve; 16. a lower shaft sleeve; 17. a valve cover; 18. and (4) a packing gland.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" means at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
Referring to fig. 1-3, fig. 1 is a schematic view of an overall structure of an eccentric half ball valve according to an embodiment of the present invention; FIG. 2 is an enlarged view of a portion A of FIG. 1; fig. 3 is a schematic structural view of a valve body sealing ring according to an embodiment of the present invention;
in the embodiment of the application, an eccentric half ball valve specifically includes: the valve comprises a valve body 11, an upper valve rod 11, a lower valve rod 11, an upper shaft sleeve 11, a lower shaft sleeve 11, a valve cover 11, an eccentric hemisphere 6 and a valve body pressure seat 5, wherein coaxial through holes are formed in the top surface and the bottom surface of the valve body 11, the upper valve rod 11 and the lower valve rod 11 are respectively arranged in the through holes in the top surface and the bottom surface of the valve body 11 through the upper shaft sleeve 11 and the lower shaft sleeve 11, the eccentric hemisphere 6 is arranged inside the valve body 11, the top end and the bottom end of the eccentric hemisphere are respectively connected with the upper valve rod 11 and the lower valve rod 11, the valve body pressure seat 5 is arranged at the outlet end of the valve body 11, the valve body pressure seat further comprises a spherical crown 1, a spherical crown pressure ring 2, a valve body sealing ring 3 and a valve body sealing seat 4, a step gap is formed in the spherical outer ring of the eccentric hemisphere 6, the spherical crown 1 is arranged on the step gap through the spherical crown pressure ring 2, and the valve body sealing seat 4 is arranged at the outlet end of the valve body pressure seat 11, the valve body sealing ring 3 is arranged between the valve body pressing seat 5 and the spherical crown 1.
The utility model has simple structure, excellent sealing performance and good integral sealing effect; through a valve body 11, an upper valve rod 11, a lower valve rod 11, an upper shaft sleeve 11, a lower shaft sleeve 11, a valve cover 11, an eccentric hemisphere 6 and a valve body pressure seat 5, the valve cover 11 is fixedly connected with the valve body 11 through bolts, coaxial through holes are arranged on the top surface and the bottom surface of the valve body 11, the upper valve rod 11 and the lower valve rod 11 are respectively arranged in the through holes on the top surface and the bottom surface of the valve body 11 through the upper shaft sleeve 11 and the lower shaft sleeve 11, the eccentric hemisphere 6 is arranged inside the valve body 11, the top end and the bottom end of the eccentric hemisphere are respectively connected with the upper valve rod 11 and the lower valve rod 11, the valve body pressure seat 5 is arranged at the outlet end of the valve body 11, the valve body pressure seat further comprises a spherical crown 1, a spherical crown pressure ring 2, a valve body seal ring 3 and a valve body seal seat 4, the spherical outer ring of the eccentric body 6 is provided with a stepped gap, the spherical crown 1 is arranged on the stepped gap through the spherical crown pressure ring 2, and the valve body seal seat 4 is arranged at the outlet end of the valve body pressure seat 11, the valve body sealing ring 3 is arranged between the valve body pressing seat 5 and the spherical crown 1; the utility model discloses a spherical crown 1 with set up valve body sealing washer 3 between the valve body seal receptacle 4, valve body seal receptacle 4 with 5 zonulae occludens of valve body pressure seat, realize spherical crown 1 with relative seal between the valve body seal receptacle 4 no matter be forward pressure-bearing or reverse pressure-bearing, valve body sealing washer 3 receive the extrusion respectively with spherical crown 1 with the laminating of valve body seal receptacle 4 further improves the sealing performance of whole eccentric hemisphere valve.
Hereinafter, an eccentric half ball valve in the present exemplary embodiment will be further described.
In an implementation manner as one of the embodiments, the valve body sealing ring 3 is disposed between the valve body pressing seat 5 and the spherical cap 1, a longitudinal section of the valve body sealing ring 3 is T-shaped, a first inclined surface 7 attached to the spherical cap 1 is disposed on one side of the spherical cap 1 close to a bottom of a vertical end of the valve body sealing ring 3, wherein the valve body sealing ring 3 is made of rubber, and is tight in sealing and better in sealing effect.
Further, the inclination angle of the first inclined surface 7 ranges from 41 ° to 43 °, and preferably ranges from 42 °.
It should be noted that the first inclined surface 7 of the valve body seal ring 3 is 42 ° and has the same inclined angle as the inclined surface of the spherical crown 1, so when the valve body seal ring 3 contacts the spherical crown 1, the contact surface is long, the friction force is strong, and the sealing effect is better because of the line contact.
In one embodiment of this embodiment, the upper end of the first inclined surface 7 is connected to a second inclined surface 8 inclined to the left along the central axis of the longitudinal section thereof, and the inclination angle of the second inclined surface 8 is in the range of 14 to 15 degrees
The second inclined surface 8 is provided at the upper end of the first inclined surface 7, and the upper end of the second inclined surface 8 is connected to the vertical end of the valve body seal ring 3, so that when the valve body seal ring 3 is pressed in the reverse direction, the elastic space is attached to the spherical surface of the spherical crown 1 when the first inclined surface 7 of the valve body seal ring 3 is pressed.
In one embodiment of this embodiment, a first step surface is disposed on a side of the valve body sealing ring 3 close to the valve body sealing seat 4, and a second step surface adapted to the first step surface is disposed on a side of the valve body sealing seat 4 close to the valve body sealing ring 3.
It should be noted that the contact surface between the valve body seal ring 3 and the valve body seal seat 4 is engaged, so that the valve body seal seat 4 fixes the valve body seal ring 3 when the valve body seal ring bears pressure in the forward direction, and the valve body seal ring 3 cannot deform in the direction unfavorable for sealing.
Further, the first step surface includes a third inclined surface 9 and a fourth inclined surface 10 located at the vertical end of the valve body sealing ring 3, the third inclined surface 9 and the fourth inclined surface 10 are both inclined to the right along the central axis of the longitudinal section thereof and are sequentially connected from bottom to top, the inclination angle of the third inclined surface 9 ranges from 69 ° to 71 °, preferably 70 °, and the inclination angle of the fourth inclined surface 10 ranges from 9 ° to 11 °, preferably 10 °.
It should be noted that the third inclined plane 9, the fourth inclined plane 10 and the transverse end of the valve body seal ring 3 form a first step surface, the first step surface is matched with the second step surface of the valve body seal seat 4, and the inclination angle of the first step surface is the same as that of the valve body seal seat 4, so that the valve body seal ring 3 is attached to the contact surface of the valve body seal seat 4, when the valve body seal seat 4 bears pressure reversely, the extruded valve body seal ring 3 is fixed by the valve body seal seat 4, and the inclined planes are attached to each other, so that the fixation is improved, and the valve body seal ring 3 cannot deform in the direction unfavorable for sealing.
In one embodiment of this embodiment, a sealing groove is provided on a contact surface between the valve body seal seat 4 and the valve body pressure seat 5.
Furthermore, an O-shaped sealing ring 11 is arranged in the sealing groove, the O-shaped sealing ring 11 is made of rubber, so that the sealing between the valve body sealing seat 4 and the valve body pressing seat 5 is tighter, the sealing performance is better, and the integral sealing effect of the eccentric half ball valve is further improved.
It should be noted that, the contact surface between the valve body seal seat 4 and the valve body pressure seat 5 is provided with a seal structure, so that the sealing performance between the valve body seal seat 4 and the valve body pressure seat 5 is improved, the overall sealing performance is further improved, and the protrusion in the seal groove is matched with the recess of the X-shaped seal ring, so that the X-shaped seal ring has better stability and cannot slide due to extrusion.
In one embodiment of this embodiment, the connecting surface of the eccentric hemisphere 6 and the spherical cap 1 is stepped.
It should be noted that, the connection surface between the spherical crown 1 and the eccentric sphere is step-shaped, so that the connection stability between the spherical crown 1 and the eccentric sphere is better, and the overall stability is improved.
The utility model has the advantages that:
through the valve body sealing washer 3 that sets up and the laminating of 1 face of spherical crown at 1 face of spherical crown, the sealing washer of this shape can realize two way seal, valve body sealing washer 3 is 42 first inclined plane 7 and when the contact of spherical crown 1, constitute the line contact between spherical crown 1 and the sealing washer, make the contact surface long, frictional force is strong, sealed effect is better, when forward pressure-bearing, valve body seal receptacle 4 is fixed with valve body sealing washer 3, valve body sealing washer 3 can not warp to the direction that is unfavorable for sealed, when reverse pressure-bearing, the sphere of spherical crown 1 is hugged closely in valve body sealing washer 3 deformation, be favorable to sealed vice sealed, the effect of two way seal can be realized to the sealing washer of above-mentioned structure, improve eccentric hemisphere valve's sealing performance.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An eccentric half ball valve is characterized by comprising a valve body, an upper valve rod, a lower valve rod, an upper shaft sleeve, a lower shaft sleeve, a valve cover, an eccentric half ball and a valve body pressing seat, the top surface and the bottom surface of the valve body are provided with coaxial through holes, the upper valve rod and the lower valve rod are respectively arranged in the through holes on the top surface and the bottom surface of the valve body through the upper shaft sleeve and the lower shaft sleeve, the eccentric hemispheroid is arranged in the valve body, the top end and the bottom end of the valve body are respectively connected with the upper valve rod and the lower valve rod, the valve body pressing seat is arranged at the outlet end of the valve body, the valve body pressing seat also comprises a spherical crown, a spherical crown pressing ring, a valve body sealing ring and a valve body sealing seat, the outer ring of the spherical surface of the eccentric hemisphere is provided with a step gap, the spherical crown is arranged on the step gap through a spherical crown pressure ring, the valve body sealing seat is arranged at the outlet end of the valve body close to the valve body pressing seat, and the valve body sealing ring is arranged between the valve body pressing seat and the spherical crown.
2. The eccentric hemisphere valve of claim 1, wherein the longitudinal section of the valve body sealing ring is T-shaped, and a first inclined surface attached to the spherical crown is arranged on one side, close to the spherical crown, of the bottom of the vertical end of the valve body sealing ring.
3. The eccentric hemispherical valve according to claim 2 wherein the angle of inclination of the first inclined surface is in the range of 41 ° to 43 °.
4. The eccentric hemispherical valve according to claim 3, wherein the upper end of the first inclined surface is connected to a second inclined surface inclined leftward along the central axis of the longitudinal section thereof, and the angle of inclination of the second inclined surface ranges from 14 ° to 15 °.
5. The eccentric hemisphere valve of claim 1, wherein a first step surface is formed on one side of the valve body sealing ring close to the valve body sealing seat, and a second step surface matched with the first step surface is formed on one side of the valve body sealing seat close to the valve body sealing ring.
6. The eccentric half ball valve according to claim 5, wherein the first step surface comprises a third inclined surface and a fourth inclined surface which are positioned at the vertical end of the valve body sealing ring, and the third inclined surface and the fourth inclined surface are inclined to the right along the central axis of the longitudinal section and are sequentially connected from bottom to top.
7. The eccentric hemispherical valve as claimed in claim 6, wherein the inclination angle of the third inclined surface ranges from 69 ° to 71 °, and the inclination angle of the fourth inclined surface ranges from 9 ° to 11 °.
8. The eccentric hemisphere valve of claim 1, wherein a sealing groove is formed in a contact surface between the valve body sealing seat and the valve body pressing seat, and an O-shaped sealing ring is arranged in the sealing groove.
9. The eccentric half ball valve of claim 1, wherein the valve body sealing ring is made of rubber.
10. The eccentric half ball valve of claim 1, wherein the bonnet is fixedly connected to the valve body by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297453.XU CN216479046U (en) | 2021-12-24 | 2021-12-24 | Eccentric half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297453.XU CN216479046U (en) | 2021-12-24 | 2021-12-24 | Eccentric half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216479046U true CN216479046U (en) | 2022-05-10 |
Family
ID=81426757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123297453.XU Active CN216479046U (en) | 2021-12-24 | 2021-12-24 | Eccentric half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216479046U (en) |
-
2021
- 2021-12-24 CN CN202123297453.XU patent/CN216479046U/en active Active
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