CN216789289U - Built-in fixed shaft structure of fixed ball valve - Google Patents
Built-in fixed shaft structure of fixed ball valve Download PDFInfo
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- CN216789289U CN216789289U CN202220044016.2U CN202220044016U CN216789289U CN 216789289 U CN216789289 U CN 216789289U CN 202220044016 U CN202220044016 U CN 202220044016U CN 216789289 U CN216789289 U CN 216789289U
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Abstract
The utility model relates to an internal fixed shaft structure of a fixed ball valve, which comprises a valve body, a ball body arranged in the valve body and connecting bodies arranged on two sides of the valve body, wherein a blind hole is formed in the bottom of the valve body, a fixed shaft connected with the ball body is arranged in the blind hole, the valve body is connected with the connecting bodies through studs, and an O-shaped sealing ring is arranged between the valve body and the connecting bodies. The built-in fixed shaft structure of the fixed ball valve can meet the function of fixing the circle center fixed shaft to the ball body, eliminates leakage points between the valve body and the fixed shaft, has a simpler structure and can reduce the manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of ball valves, in particular to an internally-installed fixed shaft structure for a fixed ball valve.
Background
Referring to fig. 3, a fixing shaft of a conventional fixed ball valve is screwed in from the outside of a valve body through bolts, and a sealing space is added between the valve body and the fixing shaft so as to achieve no external leakage. Although the fixed shaft is convenient to replace, the structure is relatively complex and the cost is relatively high, leakage points exist between the fixed shaft and the valve body, and the reliability cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, an internally installed fixed shaft structure of a fixed ball valve is provided.
In order to achieve the technical effects, the technical scheme adopted by the utility model is as follows: the utility model provides an install formula fixed axle structure in fixed ball valve, includes the valve body, sets up the spheroid in the valve body and sets up the connector in the valve body both sides, a blind hole has been seted up to the bottom of valve body, be provided with a fixed axle of being connected with the spheroid in the blind hole, connect through the double-screw bolt between valve body and the connector, and be provided with O shape sealing washer between the two.
Furthermore, the bottom of the fixed shaft is in threaded connection with the blind hole, and a bearing is arranged between the top of the fixed shaft and the ball body.
Further, the bearing is a QPQ bearing.
Further, the O-shaped sealing ring is made of rubber.
Furthermore, the valve body and the connecting body are both provided with sealing ring holes, and the sealing ring holes are of conical structures.
Further, valve seat assemblies are arranged on two sides of the ball body.
Further, the valve seat assembly comprises a valve seat arranged between the connecting body and the ball body, the valve seat is provided with a sealing surface and an assembling surface which are perpendicular to each other, two lip-shaped sealing rings are arranged between the sealing surface and the connecting body, an elastic part is arranged between the assembling surface and the connecting body, and the valve seat is in sealing fit with the ball body under the action of the elastic part.
Compared with the prior art, the utility model has the beneficial effects that: the structure can meet the fixing function of the circle center fixing shaft to the ball body, eliminates leakage points between the valve body and the fixing shaft, and is simpler in structure and capable of reducing manufacturing cost.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is apparent that the described embodiments are some, but not all embodiments of the present invention.
Drawings
FIG. 1 is a schematic structural view of an integral fixed shaft structure of a fixed ball valve according to the present invention;
FIG. 2 is a schematic view of a sealing structure of a valve body and a connecting body;
FIG. 3 is a schematic view of a fixed shaft structure of a conventional fixed ball valve;
the reference numbers and corresponding designations in the drawings are: 1. the ball valve comprises a valve body, a ball body, a connector, a blind hole, a fixed shaft, a stud, an O-shaped sealing ring, a bearing, a sealing ring hole, a valve seat, a lip-shaped sealing ring and an elastic piece, wherein the ball body is 2, the connector is 3, the blind hole is 4, the fixed shaft is 5, the stud is 6, the O-shaped sealing ring is 7, the bearing is 8, the sealing ring hole is 9, the valve seat is 10, the lip-shaped sealing ring is 11, and the elastic piece is 12.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the conventional structure of the fixed ball valve, a through hole is usually formed in the bottom of the valve body for installing a fixed shaft so as to meet the fixing function of the fixed shaft to a ball body, and although the structure is convenient to replace, leakage is easy to occur at the through hole. How to eliminate the leakage of fixed axle when satisfying fixed spheroid, need improve original structure for this reason, specifically as follows:
referring to fig. 1, the utility model provides an internal fixed shaft structure of a fixed ball valve, which comprises a valve body 1, a ball body 2 arranged in the valve body 1 and connecting bodies 3 arranged at two sides of the valve body 1, wherein the bottom of the valve body 1 is provided with a blind hole 4, a fixed shaft 5 connected with the ball body 2 is arranged in the blind hole 4, the valve body 1 is connected with the connecting bodies 3 through studs 6, and an O-shaped sealing ring 7 is arranged between the two connecting bodies.
In the embodiment, the design of the through hole at the bottom of the valve body 1 is changed into the design of the blind hole 4, during assembly, the bottom of the fixing shaft 5 is arranged in the blind hole 4 of the valve body 1, the ball body 2 is arranged in the valve body 1, the lower part of the ball body is opposite to the top of the fixing shaft 5, the O-shaped sealing ring 7 is arranged between the connecting body 3 and the valve body 1, and finally the stud 6 is screwed. Since the blind hole 4 is closed at the bottom, no sealing member is required and leakage points between the valve body 1 and the fixed shaft 5 are eliminated. In addition, the whole structure is simpler, the fixing shaft 5 is convenient to install, and the manufacturing cost can be effectively reduced.
In order to facilitate the installation of the fixed shaft 5, the bottom of the fixed shaft 5 is in threaded connection with the blind hole 4, and a bearing 8 is arranged between the top of the fixed shaft 5 and the ball body 2; wherein bearing 8 is QPQ bearing 8, and its wearability is good and non-deformable, can effectively guarantee bearing 8's life.
Referring to fig. 2, the O-ring 7 is made of rubber; the valve body 1 and the connector 3 are both provided with a sealing ring hole 9, and the sealing ring hole 9 is of a conical structure.
When the valve body 1 and the connector 3 are clamped mutually, the elastic O-shaped sealing ring 7 can be deformed to be tightly attached to the sealing ring hole 9, and the O-shaped sealing ring 7 can be tightly attached to the hole wall by the sealing ring hole 9 with the conical structure, so that the sealing effect is ensured.
Referring to fig. 1, valve seat 10 assemblies are arranged on both sides of a ball 2; the valve seat 10 assembly comprises a valve seat 10 arranged between the connecting body 3 and the ball body 2, the valve seat 10 is provided with a sealing surface and an assembling surface which are perpendicular to each other, two lip-shaped sealing rings 11 are arranged between the sealing surface and the connecting body 3, an elastic part 12 is arranged between the assembling surface and the connecting body 3, and the valve seat 10 is in sealing fit with the ball body 2 under the action of the elastic part 12.
The present invention is not limited to the above-described embodiments, and various modifications made without inventive step from the above-described concept will fall within the scope of the present invention for those skilled in the art.
Claims (7)
1. The utility model provides an install fixed axle structure in fixed ball valve, includes valve body (1), sets up spheroid (2) in valve body (1) and sets up connector (3) in valve body (1) both sides, its characterized in that, a blind hole (4) have been seted up to the bottom of valve body (1), be provided with a fixed axle (5) of being connected with spheroid (2) in blind hole (4), be connected through double-screw bolt (6) between valve body (1) and connector (3), and be provided with O shape sealing washer (7) between the two.
2. The fixed shaft structure of fixed ball valve built-in according to claim 1, characterized in that the bottom of the fixed shaft (5) is provided with a screw thread connection with the blind hole (4), and a bearing (8) is provided between the top of the fixed shaft (5) and the ball (2).
3. Fixed shaft structure in-built on a fixed ball valve according to claim 2 characterized in that the bearing (8) is a QPQ bearing.
4. The fixed ball valve built-in stationary shaft structure according to claim 1, wherein said O-ring (7) is made of rubber.
5. The fixed ball valve built-in stationary shaft structure according to claim 4, wherein the valve body (1) and the connecting body (3) are provided with a sealing ring hole (9), and the sealing ring hole (9) has a tapered structure.
6. The built-in stationary shaft structure of a stationary ball valve according to claim 1, wherein the ball (2) is provided with a valve seat assembly at both sides.
7. A fixed shaft construction built-in of stationary ball valve according to claim 6, characterized in that the valve seat assembly comprises a valve seat (10) arranged between the connecting body (3) and the ball (2), the valve seat (10) is provided with a sealing surface and a fitting surface perpendicular to each other, two lip seals (11) are arranged between the sealing surface and the connecting body (3), an elastic member (12) is arranged between the fitting surface and the connecting body (3), and the valve seat (10) is in sealing engagement with the ball (2) under the action of the elastic member (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220044016.2U CN216789289U (en) | 2022-01-10 | 2022-01-10 | Built-in fixed shaft structure of fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220044016.2U CN216789289U (en) | 2022-01-10 | 2022-01-10 | Built-in fixed shaft structure of fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216789289U true CN216789289U (en) | 2022-06-21 |
Family
ID=82013143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220044016.2U Active CN216789289U (en) | 2022-01-10 | 2022-01-10 | Built-in fixed shaft structure of fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216789289U (en) |
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2022
- 2022-01-10 CN CN202220044016.2U patent/CN216789289U/en active Active
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