CN219221368U - Valve body sealing structure - Google Patents
Valve body sealing structure Download PDFInfo
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- CN219221368U CN219221368U CN202223404674.7U CN202223404674U CN219221368U CN 219221368 U CN219221368 U CN 219221368U CN 202223404674 U CN202223404674 U CN 202223404674U CN 219221368 U CN219221368 U CN 219221368U
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- connecting piece
- valve body
- lower connecting
- sealing surface
- upper connecting
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Abstract
The utility model relates to the technical field of valve bodies, in particular to a valve body sealing structure; comprising the following steps: the valve body comprises an upper connecting piece and a lower connecting piece, wherein a cavity is reserved in the upper connecting piece and the lower connecting piece, the cavity is used for installing a movable shaft seat, an upper connecting piece sealing surface and a lower connecting piece sealing surface are correspondingly arranged on opposite sides of the upper connecting piece and the lower connecting piece, and opposite surfaces of the upper connecting piece sealing surface and the lower connecting piece sealing surface are cambered surfaces. The valve body sealing structure has the advantages that the opposite sides of the upper connecting piece sealing surface and the lower connecting piece sealing surface are cambered surfaces, so that the contact area between the upper connecting piece and the lower connecting piece is increased, the upper connecting piece and the lower connecting piece are better in contact sealing effect, and the sealing effect of the valve body is improved. And the sealing surface of the upper connecting piece and the sealing surface of the lower connecting piece are made of PEEK composite materials, so that the valve body is resistant to scouring, high temperature and wear, and the service life of the valve body is prolonged.
Description
Technical Field
The utility model relates to the technical field of valve bodies, in particular to a valve body sealing structure.
Background
The valve assembly is a one-way valve assembly applied to the hydraulic end of the fracturing pump, and is an important component of the hydraulic end of the fracturing pump. The valve assembly consists of a valve body, a valve rubber and a valve seat, wherein the valve rubber and the valve body are two vulnerable parts with the shortest service life in the hydraulic end. In the prior art, an O-shaped valve rubber is often adopted, the valve rubber is arranged on the valve body and is in direct contact with the valve seat, and the valve rubber is extruded from the valve body in movement. When the valve rubber is in a high-pressure operation state, the larger the extrusion force received by the valve rubber is, the larger the deformation of the valve rubber in the radial direction is, the larger the contact area between the valve rubber and the valve seat is, so that the sealing effect is achieved, but the O-shaped valve rubber is easily damaged when the O-shaped valve rubber is subjected to high pressure for a long time, and the sealing effect is lost.
Those skilled in the art are therefore working to develop a valve body seal.
Disclosure of Invention
The utility model aims to solve the technical problems that the O-shaped valve rubber of the traditional device is easy to damage and further loses the sealing effect when the O-shaped valve rubber is subjected to high pressure for a long time.
In order to achieve the above object, the present utility model provides a valve body sealing structure, including: the valve body comprises an upper connecting piece and a lower connecting piece, wherein a cavity is reserved in the upper connecting piece and the lower connecting piece, the cavity is used for installing a movable shaft seat, an upper connecting piece sealing surface and a lower connecting piece sealing surface are correspondingly arranged on opposite sides of the upper connecting piece and the lower connecting piece, and opposite surfaces of the upper connecting piece sealing surface and the lower connecting piece sealing surface are cambered surfaces.
The upper connecting piece and the lower connecting piece form the whole valve body, and the movable shaft seat is the valve core in the valve body. The design that the opposite surfaces of the upper connecting piece sealing surface and the lower connecting piece sealing surface are cambered surfaces increases the contact area between the upper connecting piece and the lower connecting piece, so that better contact sealing effect between the upper connecting piece and the lower connecting piece is achieved, and the sealing effect of the valve body is improved.
Wherein, the material of going up connecting piece and lower connecting piece is carbide.
The sealing ring processed by the hard alloy has high hardness and good wear resistance, and can greatly prolong the service life of the valve body when being used under severe working conditions.
The spring groove is preset in the upper connecting piece, and the spring clamp is arranged in the spring groove.
The spring clip inside the spring groove can play a positioning function on the sealing ring inside the upper connecting piece. The movable shaft seat and the sealing ring are positioned through the spring clamp and then welded, so that the processing quality of a workpiece can be improved, and the processing difficulty is reduced.
Wherein, the oil blanket is equipped with in advance between upper connecting piece and the lower connecting piece.
The oil seal can be designed to isolate the upper connector from the lower connector.
Wherein, the material of the sealing surface of the upper connecting piece and the sealing surface of the lower connecting piece is PEEK composite material.
The PEEK composite material is resistant to scouring, high temperature and wear, so that the service life of the valve body is prolonged.
Wherein, the lower connecting piece surface cover is equipped with the sealing washer, and the material of sealing washer comprises nitrile rubber.
The sealing ring formed by the nitrile rubber ensures the tightness of the lower connecting piece.
The beneficial effects of the utility model are as follows:
when the valve body is used, the opposite sides of the sealing surface of the upper connecting piece and the sealing surface of the lower connecting piece are cambered surfaces, so that the contact area between the upper connecting piece and the lower connecting piece is increased, the upper connecting piece and the lower connecting piece have better contact sealing effect, and the sealing effect of the valve body is improved. And the sealing surface of the upper connecting piece and the sealing surface of the lower connecting piece are made of PEEK composite materials, so that the valve body is resistant to scouring, high temperature and wear, and the service life of the valve body is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic overall elevational view of an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to an embodiment of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 1B according to an embodiment of the present utility model.
Part name
1. A valve body; 2. an upper connecting piece; 201. an upper connector sealing surface; 3. a lower connecting piece; 301. a lower connector sealing surface; 4. a spring groove; 5. a spring clip; 6. an oil seal; 7. and (3) sealing rings.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 3, the present utility model provides a valve body sealing structure, which includes: the valve body 1, the valve body 1 includes connecting piece 2 and lower connecting piece 3, and the cavity has been preset to the inside of last connecting piece 2 and lower connecting piece 3, and the cavity is used for installing movable shaft seat, goes up connecting piece 2 and lower connecting piece 3 opposite side and is provided with the sealed face 201 of connecting piece and the sealed face 301 of connecting piece down correspondingly, and goes up the sealed face 201 of connecting piece and the sealed face 301 of connecting piece opposite face down and be the cambered surface.
In this embodiment, first, the upper connector 2 and the lower connector 3 are assembled to form the valve body 1, and when the assembly is completed and the normal use is completed, the opposite surfaces of the upper connector sealing surface 201 and the lower connector sealing surface 301 are cambered surfaces, so that the contact area between the upper connector 2 and the lower connector 3 is increased, and the better contact sealing effect between the upper connector 2 and the lower connector 3 is achieved, so that the sealing effect of the valve body 1 is improved.
Further, the upper connecting piece 2 and the lower connecting piece 3 are made of hard alloy;
in the embodiment, the sealing ring processed by the hard alloy has high hardness and good wear resistance, and the service life of the valve body 1 can be greatly prolonged when the sealing ring is used under severe working conditions.
Further, a spring groove 4 is preset in the upper connecting piece 2, and a spring clip 5 is arranged in the spring groove 4;
in the present embodiment, the spring clip 5 inside the spring groove 4 can perform a positioning function for the seal ring inside the upper connector 2. The movable shaft seat and the sealing ring are positioned through the spring clamp 5 and then welded, so that the processing quality of a workpiece can be improved, and the processing difficulty is reduced.
Further, an oil seal 6 is preset between the upper connecting piece 2 and the lower connecting piece 3;
in the present embodiment, the oil seal 6 is designed to provide isolation between the upper connector 2 and the lower connector 3.
Further, the upper connector sealing surface 201 and the lower connector sealing surface 301 are made of PEEK composite materials;
in the embodiment, the PEEK composite material is resistant to scouring, high temperature and wear, so that the service life of the valve body 1 is prolonged.
Further, a sealing ring 7 is sleeved on the outer surface of the lower connecting piece 3, and the sealing ring 7 is made of nitrile rubber;
in the present embodiment, the sealing ring 7 made of nitrile rubber ensures the sealability of the lower connector 3.
The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.
Claims (6)
1. A valve body seal structure comprising: the valve body (1), valve body (1) include connecting piece (2) and lower connecting piece (3), go up connecting piece (2) and the inside cavity of predetermineeing of connecting piece (3) down, and the cavity is used for installing movable shaft seat, its characterized in that, go up connecting piece (2) and lower connecting piece (3) opposite side and correspond and be provided with connecting piece sealed face (201) and lower connecting piece sealed face (301), and go up the sealed face (201) of connecting piece and the sealed face (301) of connecting piece opposite face down and be the cambered surface.
2. A valve body sealing structure as claimed in claim 1, wherein the upper connecting member (2) and the lower connecting member (3) are made of cemented carbide.
3. A valve body sealing structure as claimed in claim 1, wherein a spring groove (4) is preset in the upper connecting piece (2), and a spring clip (5) is arranged in the spring groove (4).
4. A valve body sealing structure as claimed in claim 1, wherein an oil seal (6) is pre-arranged between the upper connector (2) and the lower connector (3).
5. A valve body sealing structure as claimed in claim 1, wherein the upper connector sealing surface (201) and the lower connector sealing surface (301) are made of PEEK composite material.
6. A valve body sealing structure as claimed in claim 1, wherein the outer surface of the lower connecting piece (3) is sleeved with a sealing ring (7), and the sealing ring (7) is made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223404674.7U CN219221368U (en) | 2022-12-19 | 2022-12-19 | Valve body sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223404674.7U CN219221368U (en) | 2022-12-19 | 2022-12-19 | Valve body sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219221368U true CN219221368U (en) | 2023-06-20 |
Family
ID=86746772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223404674.7U Active CN219221368U (en) | 2022-12-19 | 2022-12-19 | Valve body sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219221368U (en) |
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2022
- 2022-12-19 CN CN202223404674.7U patent/CN219221368U/en active Active
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