CN218377786U - Ball valve disk seat seal structure - Google Patents
Ball valve disk seat seal structure Download PDFInfo
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- CN218377786U CN218377786U CN202222838035.5U CN202222838035U CN218377786U CN 218377786 U CN218377786 U CN 218377786U CN 202222838035 U CN202222838035 U CN 202222838035U CN 218377786 U CN218377786 U CN 218377786U
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- sealing ring
- valve seat
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Abstract
The utility model provides a ball valve seat sealing structure, which comprises a valve seat, a vulcanized special-shaped sealing ring and a ball crown, wherein the vulcanized special-shaped sealing ring is vulcanized in a special-shaped sealing groove of the valve seat, the outer end part of the vulcanized special-shaped sealing ring protrudes out of the special-shaped sealing groove of the valve seat, and the outer end part of the vulcanized special-shaped sealing ring inclines towards the ball crown and is in interference fit with the ball crown; the cross section of the vulcanized special-shaped sealing ring is in a trapezoid shape, the top of the trapezoid shape is an arc, compared with the inner end part of the vulcanized special-shaped sealing ring, the outer end part is narrower, and the end face of the outer end part is an arc surface; the upper side and the lower side of the vulcanized special-shaped sealing ring are respectively provided with a bulge; the special-shaped sealing groove of the valve seat is closely attached to the vulcanized special-shaped sealing ring in a matching mode. The utility model discloses sealed effectual, it is difficult for running out to vulcanize the special-shaped seal circle.
Description
Technical Field
The utility model belongs to the technical field of the valve seal, in particular to ball valve disk seat seal structure.
Background
In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. In the service performance of the ball valve, the sealing performance is one of the main indexes of the ball valve, the valve seat of the ball valve is very important to seal, and a common sealing ring is generally arranged between the valve seat and the spherical crown at present, but the common sealing ring is easy to run out of a sealing groove in long-term use.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a ball valve disk seat seal structure, it is sealed effectual, vulcanize the difficult effluvium of dysmorphism sealing washer.
In order to realize the purpose, the utility model adopts the technical scheme as follows:
the utility model provides a ball valve seat sealing structure, which comprises a valve seat, a vulcanization special-shaped sealing ring and a ball crown, wherein the vulcanization special-shaped sealing ring is vulcanized in a special-shaped sealing groove of the valve seat, the outer end part of the vulcanization special-shaped sealing ring protrudes out of the special-shaped sealing groove of the valve seat, and the outer end part of the vulcanization special-shaped sealing ring inclines towards the ball crown and is in interference fit with the ball crown;
the cross section of the vulcanized special-shaped sealing ring is in a trapezoid shape, the top of the trapezoid shape is an arc, compared with the inner end part of the vulcanized special-shaped sealing ring, the outer end part is narrower, and the end face of the outer end part is an arc surface; the upper side and the lower side of the vulcanized special-shaped sealing ring are respectively provided with a bulge; the special-shaped sealing groove of the valve seat is closely attached to the vulcanized special-shaped sealing ring in a matching mode.
Preferably, the raised sections arranged on the upper side and the lower side of the vulcanized special-shaped sealing ring are rectangular.
The utility model discloses following beneficial effect has:
the utility model provides a ball valve disk seat seal structure, in the special-shaped seal groove in the disk seat, adopt the vulcanization mode to make and vulcanize special-shaped seal circle and closely laminate, be difficult for running out with disk seat special-shaped seal groove, and do benefit to the outer tip of the outstanding round of vulcanization special-shaped seal circle in sealed face department and evenly set up, the terminal surface be the outer tip of cambered surface to the spherical crown slope and with spherical crown interference fit, sealed effectual. Narrow inside width and upper and lower side are equipped with and hold the bellied recess of downside on the special-shaped sealing groove of vulcanization, can further effectively prevent to vulcanize special-shaped sealing ring and run out.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic structural view of a ball valve with a ball valve seat sealing structure according to the embodiment;
fig. 2 is a schematic view of a sealing structure of a ball valve seat according to the embodiment.
Description of reference numerals:
1. a valve seat; 2. vulcanizing the special-shaped sealing ring; 21. an outer end portion; 22. a protrusion; 3. a spherical cap.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment provides a ball valve seat sealing structure, as shown in fig. 1 and fig. 2, including a valve seat 1, a vulcanized special-shaped sealing ring 2 and a ball crown 3, the vulcanized special-shaped sealing ring 2 is vulcanized in a special-shaped sealing groove of the valve seat 1, an outer end 21 of the vulcanized special-shaped sealing ring 2 protrudes out of the special-shaped sealing groove of the valve seat 1, and the outer end 21 of the vulcanized special-shaped sealing ring 2 inclines towards the ball crown 3 and is in interference fit with the ball crown 3.
The cross section of the vulcanized special-shaped sealing ring 2 is in a trapezoid shape, the top of the cross section of the vulcanized special-shaped sealing ring is in an arc shape, compared with the inner end part of the vulcanized special-shaped sealing ring 2, the outer end part 21 is narrower, the end face of the outer end part 21 is an arc surface, and the end face of the inner end part is a plane; the upper side and the lower side of the vulcanized special-shaped sealing ring 2 are respectively provided with a bulge 22; the special-shaped sealing groove of the valve seat 1 is closely attached to the vulcanized special-shaped sealing ring 2 in a matching manner. The cross section of the bulge 22 arranged on the upper side and the lower side of the vulcanization special-shaped sealing ring 2 is rectangular. In this embodiment, two protrusions 22 are disposed on the upper side and one protrusion 22 is disposed on the lower side of the vulcanized special-shaped sealing ring 2.
In a special-shaped sealing groove in a valve seat, a vulcanization mode is adopted to ensure that a vulcanized special-shaped sealing ring 2 is tightly attached to the special-shaped sealing groove of the valve seat 1 and is difficult to run out, and the uniform arrangement of the outer end part of a circle of the vulcanized special-shaped sealing ring protruding from a sealing surface is facilitated (a mold is used during vulcanization); the special-shaped sealing groove is narrow outside and wide inside, and the upper side and the lower side are provided with grooves for accommodating protrusions 22 at the upper side and the lower side of the vulcanized special-shaped sealing ring 2, so that the vulcanized special-shaped sealing ring 2 can be further effectively prevented from running out. The outer end part of a circle of the vulcanized special-shaped sealing ring protruding from the sealing surface is uniformly arranged, the outer end part 21 of the end surface which is a cambered surface inclines towards the spherical crown 3 and is in interference fit with the spherical crown 3, and the sealing effect is good.
The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the present invention is defined by the claims. All utilize technical scheme of the embodiment of the utility model, or technical staff in the field is in the utility model discloses under embodiment technical scheme's the inspiration the utility model discloses in the essence and the protection scope of the embodiment, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change and improvement etc. that the application scope was made, all should still belong to within the protection scope is covered to the patent of the embodiment of the utility model.
Claims (2)
1. The ball valve seat sealing structure is characterized by comprising a valve seat (1), a vulcanized special-shaped sealing ring (2) and a ball crown (3), wherein the vulcanized special-shaped sealing ring (2) is vulcanized in a special-shaped sealing groove of the valve seat (1), the outer end part (21) of the vulcanized special-shaped sealing ring (2) protrudes out of the special-shaped sealing groove of the valve seat (1), and the outer end part (21) of the vulcanized special-shaped sealing ring (2) inclines towards the ball crown (3) and is in interference fit with the ball crown (3);
the cross section of the vulcanized special-shaped sealing ring (2) is in a trapezoid shape, the top of the cross section of the vulcanized special-shaped sealing ring is in an arc shape, and compared with the inner end part of the vulcanized special-shaped sealing ring (2), the outer end part (21) is narrower and the end face of the outer end part (21) is an arc surface; the upper side and the lower side of the vulcanized special-shaped sealing ring (2) are respectively provided with a bulge (22); the special-shaped sealing groove of the valve seat (1) is closely attached to the vulcanized special-shaped sealing ring (2) in a matching manner.
2. A ball valve seat sealing structure according to claim 1, characterized in that the protrusions (22) provided on the upper and lower sides of the vulcanized special-shaped seal ring (2) are rectangular in cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222838035.5U CN218377786U (en) | 2022-10-27 | 2022-10-27 | Ball valve disk seat seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222838035.5U CN218377786U (en) | 2022-10-27 | 2022-10-27 | Ball valve disk seat seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218377786U true CN218377786U (en) | 2023-01-24 |
Family
ID=84934127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222838035.5U Active CN218377786U (en) | 2022-10-27 | 2022-10-27 | Ball valve disk seat seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218377786U (en) |
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2022
- 2022-10-27 CN CN202222838035.5U patent/CN218377786U/en active Active
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