CN215980918U

CN215980918U - High-performance eccentric half ball valve

Info

Publication number: CN215980918U
Application number: CN202121833919.0U
Authority: CN
Inventors: 钱忠义; 叶信凯; 叶茂光; 叶信跃; 章文曲
Original assignee: Yuefeng Valve Manufacturing Co ltd
Current assignee: Yuefeng Valve Manufacturing Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-03-08
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a high-performance eccentric half ball valve, which adopts the technical scheme that: the valve shaft shell comprises a valve shell body, a valve pipe and a mounting disc, wherein the valve pipe is fixedly mounted at the left end and the right end of the valve shell body, the mounting disc is fixedly mounted at one end, away from the valve shell body, of the valve pipe, a sealing seat is fixedly mounted at the top end of the valve shell body, a valve cover is fixedly arranged on the sealing seat, a valve shaft shell is fixedly arranged on the upper surface of the valve cover, a mounting sleeve is fixedly arranged inside the valve shaft shell, an upper valve shaft is fixedly mounted inside the mounting sleeve, and a hemispherical valve core is fixedly mounted inside the valve shell.

Description

High-performance eccentric half ball valve

Technical Field

The utility model relates to the technical field of eccentric half-ball valves, in particular to a high-performance eccentric half-ball valve.

Background

The ball valve for cutting off medium in pipeline includes eccentric half-ball valve, which is suitable for controlling and conveying liquid, gas or slag-removing medium in conveying pipeline and mainly is used for cutting off, distributing and changing flow speed and direction of medium in pipeline. Ball valves are used in pipelines primarily to shut off, distribute and change the direction of flow of media. The utility model discloses a No. CN110608297A eccentric half ball valve, include the cavity valve body and install the rotatable hemisphere case in the valve body through the valve rod, hemisphere case with install disk seat in the cavity valve body is sealing connection, install the upper end of valve rod and be used for rotating and go up and down the drive mechanism of valve rod, the mounting groove that is used for installing hemisphere case is offered to the lower extreme of valve body, hemisphere case's lower extreme is provided with to inlay and puts branch in the mounting groove, the one end that is close to hemisphere case on the branch is provided with the radial inward take-up groove, the lower extreme of valve rod is equipped with the cross-section and is square straight portion and rake, the rake is located straight upper end and to the slope of disk seat direction, straight portion wears to establish the upper end of hemisphere case. The utility model provides an eccentric half ball valve, which solves the problem that the sealing surface of the existing eccentric half ball valve is easy to wear.

The sealing part of the valve core of the existing eccentric half-ball valve is mutually rubbed with the inner wall of the valve body when the existing eccentric half-ball valve is opened and closed, the sealing part is easy to wear, and particles and impurities in a medium are easily blocked in an arc-shaped sealing groove under the condition that the flow rate of the medium is not fast, so that the wear between the bulge and the sealing groove is accelerated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-performance eccentric half ball valve, aiming at solving the problems that a sealing part of a valve core of the eccentric half ball valve in the background art is mutually rubbed with the inner wall of a valve body when the eccentric half ball valve is opened and closed, the sealing part is easy to wear, and particles and impurities in a medium are easy to block in an arc-shaped sealing groove, so that the wear between a bulge and the sealing groove is accelerated.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an eccentric hemisphere valve of high performance, includes valve case, valve pipe and mounting disc, both ends fixed mounting has the valve pipe about the valve case, the valve pipe is kept away from the one end fixed mounting of valve case has the mounting disc, the top fixed mounting of valve case has the seal receptacle, the fixed valve gap that is provided with on the seal receptacle, the last fixed surface of valve gap is provided with the valve shaft casing, the inside fixed mounting cover that is provided with of valve shaft casing, the inside fixed mounting of mounting cover has the upper valve shaft, the inside fixed mounting of valve case has hemispherical valve core, hemispherical valve core is close to one side fixed sealing surface that is provided with of valve pipe, the bottom mounting of valve case is provided with down the valve shaft, the external fixed surface of valve shaft is provided with second fastening screw down.

Furthermore, a pressure groove is formed in the mounting disc.

Through above-mentioned technical scheme, set up the indent, can improve the structural strength that hemispherical valve core should be located to can provide the support for sealed section more firmly, resist the impact of medium, reduce sealed section simultaneously, improve the structural strength that hemispherical valve core should be located, thereby can the quality, conveniently open, rotate, resist the impact of medium.

Furthermore, through holes are evenly formed in the mounting disc, and first fastening screws are fixedly arranged inside the through holes.

Through above-mentioned technical scheme, the setting is through with first clamping screw, can fix the mounting disc.

Furthermore, an upper fixing sleeve and a lower fixing sleeve are respectively arranged at two ends of the hemispherical valve core, the upper fixing sleeve is fixedly sleeved at the bottom of the upper valve shaft, and the upper valve shaft and the upper fixing sleeve are fixed through a positioning buckle.

Through above-mentioned technical scheme, set up fixed cover and lower fixed cover, can fix hemispherical case, prevent that hemispherical case from taking place the phenomenon that drops at the pivoted in-process, influence the use of device, through the positioning action of location buckle to hemispherical case, can make hemispherical case remain stable when opening and closing.

Furthermore, the middle part of the upper valve shaft is rotationally connected with the inner wall of the valve shell through a sealing bearing, and the top end of the upper valve shaft extends out of the outer side of the valve shell.

Through the technical scheme, the device is convenient to operate.

Further, the seal receptacle passes through bolt and valve case's outer wall fixed connection, the inner wall fixed connection of seal receptacle has the sealing washer, the inboard surface of sealing washer and the laminating of last valve shaft.

Through above-mentioned technical scheme, can effectual reduction sealing washer and the valve pipe between the frictional force that produces, reduced the wearing and tearing of sealing washer and valve pipe, make it keep the leakproofness for a long time, improved life, the dismantlement of the seal receptacle of being convenient for is in order to maintain the inside part of valve casing, has improved the leakproofness between seal receptacle and the valve casing.

In conclusion, the utility model mainly has the following beneficial effects:

the utility model improves the easy accumulation and impurity blockage in the valve shell by arranging the sealing surface on the hemispherical valve core, so that the sealing element contacts the structure of the side wall of the valve pipe, and a sealing pair is formed between the sealing element and the hemispherical valve core to ensure the sealing effect of the valve, thereby reducing the risk that medium particles and impurities are blocked on the sealing surface of the valve core at low flow rate; through the cooperation that sets up fixed cover, location buckle and fixed cover down, fix hemispherical case, have the double effect of axial seal and radial seal, be difficult for causing the seepage or leak, can prolong the life of valve.

Drawings

Fig. 1 is a schematic structural view of the inside of the present embodiment;

fig. 2 is a schematic diagram of the present embodiment.

Reference numerals: 1. a valve housing; 2. a valve tube; 3. mounting a disc; 4. pressing a groove; 5. a through hole; 6. a first fastening screw; 7. a sealing seat; 8. a valve cover; 9. a valve shaft housing; 10. installing a sleeve; 11. an upper valve shaft; 12. a hemispherical valve core; 13. fixing a sleeve; 14. positioning a buckle; 15. a lower fixing sleeve; 16. a lower valve shaft; 17. a second fastening screw; 18. and (7) sealing the surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 and 2, a high-performance eccentric half ball valve comprises a valve housing 1, a valve tube 2 and a mounting plate 3, wherein the valve tube 2 is fixedly mounted at the left end and the right end of the valve housing 1, the mounting plate 3 is fixedly mounted at the end of the valve tube 2 far away from the valve housing 1, the valve tube 2 and the mounting plate 3 are welded and fixed, so that the installation is convenient, and the service life of the device is prolonged, a sealing seat 7 is fixedly mounted at the top end of the valve housing 1, a valve cover 8 is fixedly arranged on the sealing seat 7, a valve shaft housing 9 is fixedly arranged on the upper surface of the valve cover 8, a mounting sleeve 10 is fixedly arranged inside the valve shaft housing 9, an upper valve shaft 11 is fixedly mounted inside the mounting sleeve 10, the mounting sleeve 10 is made of cast steel, so that the abrasion of the upper valve shaft 11 can be reduced, a hemispherical valve core 12 is fixedly mounted inside the valve housing 1, a sealing surface 18 is fixedly arranged on one side of the hemispherical valve core 12 close to the valve tube 2, the sealing surface 18 ensures the sealing effect of the valve, the bottom end of the valve housing 1 is fixedly provided with the lower valve shaft 16, the outer surface of the lower valve shaft 16 is fixedly provided with the second fastening screw 17, the second fastening screw 17 is made of cast iron, and the lower valve shaft 16 can be fixed on the valve housing 1.

Referring to fig. 2, a pressing groove 4 is formed in the mounting plate 3, and the pressing groove 4 is located at the center of the mounting plate 3.

Referring to fig. 1 and 2, through holes 5 are uniformly formed in the mounting plate 3, first fastening screws 6 are fixedly arranged inside the through holes 5, and the first fastening screws 6 are made of cast iron.

Referring to fig. 1, an upper fixing sleeve 13 and a lower fixing sleeve 15 are respectively disposed at two ends of a hemispherical valve core 12, the upper fixing sleeve 13 is fixedly sleeved at the bottom of an upper valve shaft 11, the upper valve shaft 11 and the upper valve shaft 11 are fixed by a positioning buckle 14, and the upper valve shaft 11 are made of cast iron.

Referring to fig. 1, the middle of the upper valve shaft 11 is rotatably connected to the inner wall of the valve housing 1 through a sealing bearing, and the top end of the upper valve shaft 11 extends out of the valve housing 1.

Referring to fig. 1, the sealing seat 7 is fixedly connected with the outer wall of the valve housing 1 through bolts, the inner wall of the sealing seat 7 is fixedly connected with a sealing ring, and the inner side surface of the sealing ring is attached to the upper valve shaft 11.

To sum up, when using, whether the inspection device has a problem, after the assembly inspection is correct, utilize first fastening screw 6 to be connected mounting disc 3 and pipeline, fasten first fastening screw 6 through the spanner, then, the position of hemispherical case 12 and the contact of valve pipe 2 is contradicted when sealed, makes sealed face 18 slightly be higher than hemispherical case 12 surface, contradicts in place, when the valve is closed, can produce the contained angle that reduces gradually between sealed face 18 and the valve pipe 2, at the in-process that reduces, with the help of the medium of flow or impact further clear away impurity, granule.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high performance eccentric half ball valve, includes valve casing (1), valve pipe (2) and mounting disc (3), its characterized in that: the left end and the right end of the valve shell (1) are fixedly provided with valve pipes (2), one end of each valve pipe (2) far away from the valve shell (1) is fixedly provided with a mounting disc (3), a sealing seat (7) is fixedly arranged at the top end of the valve shell (1), a valve cover (8) is fixedly arranged on the sealing seat (7), a valve shaft shell (9) is fixedly arranged on the upper surface of the valve cover (8), a mounting sleeve (10) is fixedly arranged inside the valve shaft shell (9), an upper valve shaft (11) is fixedly arranged inside the mounting sleeve (10), a hemispherical valve core (12) is fixedly arranged inside the valve shell (1), one side of the hemispherical valve core (12) close to the valve pipe (2) is fixedly provided with a sealing surface (18), the bottom end of the valve shell (1) is fixedly provided with a lower valve shaft (16), and the outer surface of the lower valve shaft (16) is fixedly provided with a second fastening screw (17).

2. The high-performance eccentric half ball valve according to claim 1, wherein: the mounting disc (3) is internally provided with a pressure groove (4).

3. The high-performance eccentric half ball valve according to claim 1, wherein: through-holes (5) are uniformly formed in the mounting disc (3), and first fastening screw rods (6) are fixedly arranged in the through-holes (5).

4. The high-performance eccentric half ball valve according to claim 1, wherein: the two ends of the hemispherical valve core (12) are respectively provided with an upper fixing sleeve (13) and a lower fixing sleeve (15), the bottom of the upper valve shaft (11) is fixedly sleeved with the upper fixing sleeve (13), and the upper valve shaft (11) and the upper fixing sleeve (13) are fixed through a positioning buckle (14).

5. The high-performance eccentric half ball valve according to claim 1, wherein: the middle part of the upper valve shaft (11) is rotationally connected with the inner wall of the valve shell (1) through a sealing bearing, and the top end of the upper valve shaft (11) extends out of the outer side of the valve shell (1).

6. The high-performance eccentric half ball valve according to claim 1, wherein: the valve is characterized in that the sealing seat (7) is fixedly connected with the outer wall of the valve shell (1) through a bolt, a sealing ring is fixedly connected to the inner wall of the sealing seat (7), and the inner side surface of the sealing ring is attached to the upper valve shaft (11).