CN214838533U - High-pressure wedge type ball valve - Google Patents
High-pressure wedge type ball valve Download PDFInfo
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- CN214838533U CN214838533U CN202022737946.XU CN202022737946U CN214838533U CN 214838533 U CN214838533 U CN 214838533U CN 202022737946 U CN202022737946 U CN 202022737946U CN 214838533 U CN214838533 U CN 214838533U
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Abstract
The utility model discloses a high-pressure wedge ball valve, which comprises a valve body, a valve seat, a wedge ball body, an inner support ring, an outer support ring, a valve rod, a valve cover and a handle, wherein the wedge ball body and the valve seat form a sealing pair through the inner support ring and the outer support ring; a spring is arranged between the wedge-shaped ball body and the valve cover, the generated pretightening force can offset medium pressure and valve seat pretightening force, the sealing performance of the valve is better ensured, a sealing packing cavity is arranged at the upper part of the valve body, a valve rod is arranged in the sealing packing cavity, the valve rod is connected with the wedge-shaped ball body, a first packing body, a second packing body and a packing gland are sequentially arranged between the valve rod and the sealing packing cavity from bottom to top, and a limiting plate is arranged on the packing gland; the utility model discloses the structure has the two-way sealing effect, has improved the not enough of original ball valve, suitable high-pressure place, and the suitability is strong and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of the ball valve that floats, concretely relates to high pressure wedge type ball valve.
Background
A side-mounted two-piece floating ball valve is a common valve and has the main function of cutting off or connecting a fluid passage in a pipeline. The working principle is that a certain torque is applied to the ball body at the upper end of the valve rod by means of a driving device, the ball body is enabled to rotate 90 degrees to complete the action of opening and closing the valve, mostly, a floating structure is adopted, namely, the valve seat is fixed, the ball body floats, the sealing is realized by pressing the valve seat and the ball body under the action of pretightening force or fluid pressure, the valve seat generates elastic-plastic deformation to achieve sealing, the sealing effect depends on the action of the valve seat under the action of the fluid pressure or pretightening force, and the sealing can not be satisfied by a one-way sealing ball valve, so that the wedge-type ball valve is provided to satisfy the original defects. The utility model has the structure that: the wedge-shaped ball body is in sealing contact with the valve seat, the valve seat is connected with the valve seat through the inner supporting ring and the outer supporting ring, the spring is arranged between the valve rod and the ball body and transmits torque, and the wedge-shaped sealing structure tightly seals and cooperates the wedge-shaped ball body and the valve seat due to the force generated by the pretightening force of the spring, so that the two-way sealing effect is realized, and the sealing effect of the valve is better.
Disclosure of Invention
In order to solve the problem, the utility model discloses a high pressure wedge ball valve, the utility model aims at providing a sealing performance is more reliable, the high pressure wedge ball valve of the two way seal that the suitability is strong and the practicality is good.
In order to achieve the purpose, the utility model provides a high wedge ball valve, including valve body, valve seat, wedge spheroid, valve rod, valve gap and handle, wherein valve body and valve gap pass through the bolt fastening, be equipped with the valve body sealing face in the valve body, the valve body sealing face becomes 5 wedge angles with the valve rod the central axis, wedge spheroid left and right both ends face becomes 5 wedge angles with the valve rod central line respectively, wedge spheroid and valve seat form sealed pair through inside and outside support ring, the medial surface of valve seat is fixed with the inner support ring, the lateral surface of valve seat is fixed with the outer support ring; a spring is arranged between the wedge-shaped ball body and the valve cover, a sealing filler cavity is arranged at the upper part of the valve body, a valve rod is arranged in the sealing filler cavity and connected with the wedge-shaped ball body, a first filler body, a second filler body and a filler gland are sequentially arranged between the valve rod and the sealing filler cavity from bottom to top, and a limiting plate is arranged on the filler gland.
Furthermore, the outer side face of the valve seat is attached to the inner surface of the outer support ring, the inner side face of the valve seat is attached to the outer surface of the inner support ring, and the inner support ring and the outer support ring support the valve seat, so that the valve seat is more stable.
Furthermore, a valve seat sealing surface is arranged in the valve seat and is connected with the wedge-shaped ball body, and the radian of the valve seat sealing surface is just fit with the wedge-shaped ball body, so that the sealing effect is more reliably achieved.
Furthermore, the lower end of the valve rod is provided with a rectangular square head, a rectangular key groove formed in the ball body is connected with the rectangular square head of the valve rod, and the valve rod directly transmits force to the wedge-shaped ball body.
Furthermore, the spring is sleeved on the valve rod, and the spring generates pretightening force, so that medium pressure and valve seat pretightening force can be counteracted.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
the utility model has novel structure, integrated structure and convenient installation; the wedge-shaped ball and the valve seat form a sealing pair through the inner support ring and the outer support ring, the outer side surface of the valve seat is attached to the inner surface of the outer support ring, the inner side surface of the valve seat is attached to the outer surface of the inner support, and the inner support ring and the outer support ring support the valve seat more stably and reliably to play a role in sealing; the ball body is designed into a wedge-shaped structure, the wedge-shaped ball body is tightly matched with the valve seat, a spring is arranged between the ball body and the valve cover, the generated pretightening force can offset medium pressure and the pretightening force of the valve seat, the pretightening force of the valve seat is regulated and controlled by the spring along with the rise of the pressure, the sealing force of the valve seat and the ball body is favorably compensated, the fluctuation under certain pressure is resisted, the ball body can be better sealed, the sealing performance of the valve is better ensured, and the two-way sealing effect is realized; the utility model discloses the structure has the two way seal effect, improves than traditional ball valve performance that floats, suitable high-pressure place, and the suitability is strong and the practicality is good.
Drawings
Fig. 1 is a cross-sectional view of the high-pressure wedge ball valve of the present invention;
description of reference numerals:
1. a valve body; 2. a valve seat; 3. an inner support ring; 4. a wedge-shaped sphere; 5. an outer support ring; 6. a valve stem; 7. a first filler body; 8. a second filler body; 9. a limiting plate; 10, a packing gland; 11. a valve cover; 12. a spring; 13. a handle; 14. a valve body sealing surface; 15. a valve seat sealing surface.
Detailed Description
The technical solutions provided by the present invention will be described in detail with reference to specific embodiments, and it should be understood that the following specific embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): as shown in fig. 1, a high-pressure wedge ball valve comprises a valve body 1, a valve seat 2, a wedge ball 4, a valve rod 6, a valve cover 11 and a handle 13, wherein the valve body 1 and the valve cover 10 are fixed through bolts, a valve body sealing surface 14 is arranged in the valve body 1, a valve seat sealing surface 15 is arranged in the valve seat 2, the valve seat sealing surface 15 is connected with the wedge ball 4, the radian of the valve seat sealing surface 15 is just fit with the wedge ball 4 to more reliably play a sealing role, the valve body sealing surface 14 and the central axis of the valve rod 6 form a wedge angle of 5 degrees, and two end surfaces of the wedge ball 4 respectively form a wedge angle of 5 degrees with the central axis of the valve rod; the wedge-shaped ball 4 and the valve seat 2 fix the valve seat 2 in the groove through the inner support ring 3 and the outer support ring 5 to form a sealing pair, the wedge-shaped ball 4 is connected in a valve cavity formed by the valve body 1 and the valve cover 10, the inner side surface of the valve seat 2 is fixed with the inner support ring 3, the outer side surface of the valve seat 2 is fixed with the outer support ring 5, the outer side surface of the valve seat 2 is attached to the inner surface of the outer support ring 5, and the inner side surface of the valve seat 2 is attached to the outer surface of the inner support ring, so that the valve seat is more stable; a spring 12 is arranged between the wedge-shaped ball 4 and the valve cover 11, the spring 12 is sleeved on the valve rod 6, and the spring 12 generates pretightening force which can offset medium pressure and valve seat pretightening force; the upper part of the valve body 1 is provided with a sealing filler cavity, the valve rod 6 is arranged in the sealing filler cavity, the valve rod 6 is connected with the wedge-shaped ball body 4, the lower end of the valve rod 6 is provided with a rectangular square head, a rectangular key groove arranged on the wedge-shaped ball body 4 is connected with the rectangular square head of the valve rod 6, and the valve rod 6 directly transmits force to the wedge-shaped ball body 4; a first packing body 7, a second packing body 8 and a packing gland 10 are sequentially arranged between the valve rod 6 and the sealing packing cavity from bottom to top, a limiting plate 9 is arranged on the packing gland 10, a handle 13 is connected to the limiting plate 9, and the limiting plate 9 limits the handle 13 to make 1/4 circular motion.
The working principle is as follows: the utility model discloses during operation of high pressure batch-type ball valve, turning handle 13 makes 1/4 circular motion, namely rotate 90 degrees, handle 13 transmits power to wedge formula spheroid 4 through the rectangle square head of valve rod 6, the round trip action just can realize opening and closing the ball valve, wedge formula spheroid 4 and valve seat 2 are fixed valve seat 2 in the recess through inner support ring 3, outer support ring 5 forms sealed pair, valve body sealing surface 14, wedge formula spheroid both ends face become 5 wedge angles with valve rod 6 the central axis respectively, the setting of the inside and outside support ring and the design of wedge contained angle of unique valve seat 2, let valve seat sealing surface 15 and wedge formula spheroid closely cooperate, can realize the leakproofness between automatic adjustment wedge formula spheroid 4 and valve seat 2, reduce the wearing and tearing of valve seat 2, the leakproofness has been guaranteed; in addition, a spring 12 is arranged between the wedge-shaped ball 4 and the valve cover 11, and after a component force is generated to resist certain medium pressure under the action of the pretightening force of the spring 12, the sealing surface 14 of the valve seat is pressed more and more tightly, so that the bidirectional sealing effect is realized, and the high-pressure sealing effect is realized.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the spirit and scope of the present invention.
Claims (5)
1. A high-pressure wedge-type ball valve is characterized by comprising a valve body, a valve seat, a wedge-type ball body, a valve rod, a valve cover and a handle, wherein the valve body and the valve cover are fixed through bolts; a spring is arranged between the wedge-shaped ball body and the valve cover, a sealing filler cavity is arranged at the upper part of the valve body, a valve rod is arranged in the sealing filler cavity and connected with the wedge-shaped ball body, a first filler body, a second filler body and a filler gland are sequentially arranged between the valve rod and the sealing filler cavity from bottom to top, and a limiting plate is arranged on the filler gland.
2. A high pressure wedge ball valve in accordance with claim 1, wherein said outer side surface of said valve seat is attached to an inner surface of said outer support ring and said inner side surface of said valve seat is attached to an outer surface of said inner support ring.
3. A high pressure wedge ball valve in accordance with claim 1, wherein said valve seat is provided with a valve seat sealing surface, said valve seat sealing surface being connected to the wedge ball.
4. The high-pressure wedge ball valve as claimed in claim 1, wherein said valve stem has a rectangular square head at a lower end thereof, and a rectangular key groove formed on the ball body is connected to the rectangular square head of the valve stem.
5. The high pressure wedge ball valve of claim 1, wherein the spring is sleeved on the valve stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022737946.XU CN214838533U (en) | 2020-11-24 | 2020-11-24 | High-pressure wedge type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022737946.XU CN214838533U (en) | 2020-11-24 | 2020-11-24 | High-pressure wedge type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214838533U true CN214838533U (en) | 2021-11-23 |
Family
ID=78757963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022737946.XU Active CN214838533U (en) | 2020-11-24 | 2020-11-24 | High-pressure wedge type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214838533U (en) |
-
2020
- 2020-11-24 CN CN202022737946.XU patent/CN214838533U/en active Active
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