CN217355644U

CN217355644U - Flange ball valve that leakproofness is good

Info

Publication number: CN217355644U
Application number: CN202221100293.7U
Authority: CN
Inventors: 吴晓川
Original assignee: Tianjin Amu Fluid Equipment Manufacturing Co ltd
Current assignee: Tianjin Amu Fluid Equipment Manufacturing Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-09-02
Anticipated expiration: 2032-05-09

Abstract

The utility model belongs to the technical field of flange ball valves, in particular to a flange ball valve with good sealing performance, which comprises a main body component, a valve rod sealing component and a valve body sealing component, wherein the main body component comprises a first valve shell and a second valve shell which are fixedly connected with each other, the valve body sealing component is fixedly arranged at the connecting position of the first valve shell and the second valve shell, a valve core is rotatably arranged in the first valve shell, a valve rod is fixedly arranged at the upper end of the valve core, the upper end of the valve rod penetrates through the first valve shell and extends to the upper end of the first valve shell, the valve rod sealing component is fixedly arranged at the outer side of the first valve shell contacted with the valve rod, the sealing effect between the valve rod and the first valve shell is improved by adopting the valve rod sealing component, and through an air bag, when the valve is rotated, the air bag is deformed, so that the sealing state is kept between the valve rod and the first valve shell, and through the valve body sealing assembly, the sealing effect of the connecting position of the first valve shell and the second valve shell is improved, the use is convenient, and the sealing performance is good.

Description

Flange ball valve that leakproofness is good

Technical Field

The utility model belongs to the technical field of the flange ball valve, specifically be a flange ball valve that leakproofness is good.

Background

The flange ball valve and the gate valve belong to a same type of valve, the difference is that a closing member of the flange ball valve is a ball body, the ball body rotates around the valve body center line to achieve the opening and closing of the valve, the flange ball valve is mainly used for cutting, distributing and changing the flow direction of a medium in a pipeline, flanges are fixedly arranged at two ends of the flange ball valve, the flange ball valve is convenient to fixedly install, when the existing flange ball valve is produced, a valve core is convenient to install, the valve body is often divided into two parts, the valve core is fixedly coated, when the existing flange ball valve is connected, bolts are mostly adopted for connection, in order to improve the sealing effect between the two parts, a sealing gasket is added at the connecting position, but when the flange ball valve is used for a long time, due to the aging of the sealing gasket, the leakage is easy to generate, the sealing effect is poor, and in order to open and close, the valve rod needs to extend to the outside of the valve body, the leakage is easily generated at the position where the valve rod is connected with the valve body, so that the valve is inconvenient to use and influences the normal use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a flange ball valve that leakproofness is good possesses at stronger sealed effect, uses stable advantage, has solved the current device and has sealed the not good problem of effect.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: a flange ball valve with good sealing performance comprises a main body assembly, a valve rod sealing assembly and a valve body sealing assembly;

the main body component comprises a first valve shell and a second valve shell which are fixedly connected with each other, the valve body sealing component is fixedly installed outside the connecting position of the first valve shell and the second valve shell, a valve core is rotatably installed inside the first valve shell, a valve rod is fixedly installed at the upper end of the valve core, the upper end of the valve rod penetrates through the first valve shell and extends to the upper end of the first valve shell, and the valve rod sealing component is fixedly installed on the outer side, in contact with the valve rod, of the first valve shell;

valve rod seal subassembly includes the bearing, just bearing fixed mounting is in the upper end of first valve casing, just the valve rod runs through the bearing, the upper end fixed mounting of first valve casing has the gasbag, the gasbag cup joints on the valve rod, just the inboard of gasbag with valve rod looks fixed connection, the downside of gasbag with first valve casing looks fixed connection.

Preferably, a handle is fixedly mounted at the upper end of the valve rod.

By adopting the scheme, the valve rod can be conveniently rotated through the handle, so that the valve core can be conveniently rotated and opened and closed.

Preferably, the upper end of the valve rod is sleeved with a pressing plate, the pressing plate is connected with one side of the bearing, and the pressing plate presses and holds the air bag.

By adopting the above scheme, through the clamp plate, it is right to be convenient for the gasbag is pressed and is held, and then improves the gasbag is right the valve rod with sealed effect between the first valve casing.

Preferably, the pressing plate is uniformly provided with connecting holes, one side of the bearing is uniformly and fixedly provided with a pull rod, the pull rod is inserted into the connecting holes, and the pressing plate is fixedly connected with one side of the bearing through the pull rod.

By adopting the scheme, the connecting holes are convenient for tensioning the bearing and the pressing plate, and the air bag is convenient to press and hold.

Preferably, the valve body sealing assembly comprises a sealing ring, the two sides of the sealing ring are fixedly provided with connecting rings, and the sealing ring is sleeved on the connecting position of the first valve shell and the second valve shell.

By adopting the above scheme, through the sealing ring, be convenient for right first valve casing with second valve casing hookup location seals.

Preferably, pin holes are uniformly formed in the outer side of the connecting ring, a rubber ring is inserted into one side of the connecting ring through the pin holes, the rubber ring is of a semicircular structure, and one side of the rubber ring is respectively compressed with the first valve shell and the second valve shell.

Through adopting above-mentioned scheme, through the pinhole is convenient for right the rubber ring is fixed, and passes through the rubber ring is convenient for right the both ends of sealing ring are sealed, and then are convenient for right first valve casing with seal between the second valve casing.

Preferably, the outer side of the connecting ring is in threaded connection with a limiting ring, a limiting plate is uniformly and fixedly mounted on one side of the limiting ring, and the limiting plate is tightly pressed with one side of the rubber ring.

By adopting the above scheme, through spacing collar with the limiting plate is convenient for with the rubber ring compresses tightly first valve casing with between the second valve casing, improve the sealing ring with first valve casing with sealed effect between the second valve casing.

(III) advantageous effects

Compared with the prior art, the utility model provides a flange ball valve that leakproofness is good possesses following beneficial effect:

this technical scheme is through adopting valve rod seal assembly, improves the sealed effect between valve rod and the first valve casing, and through the gasbag, when rotating, deformation takes place for be in encapsulated situation all the time between valve rod and the first valve casing, and through valve body seal assembly, improve the sealed effect of first valve casing and second valve casing hookup location, facilitate the use, the leakproofness is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the valve stem seal assembly of the present invention;

FIG. 4 is a schematic view of a partial structure of a sealing assembly of the valve body according to the present invention;

in the figure:

1. a body assembly; 11. a first valve housing; 12. a second valve housing; 13. a valve core; 14. a valve stem; 15. a handle;

2. a valve stem seal assembly; 21. a bearing; 22. an air bag; 23. pressing a plate; 24. connecting holes; 25. a pull rod;

3. a valve body seal assembly; 31. a seal ring; 32. a connecting ring; 33. a pin hole; 34. a rubber ring; 35. a limiting ring; 36. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

A flange ball valve with good sealing performance comprises a main body component 1, a valve rod sealing component 2 and a valve body sealing component 3;

the main body component 1 comprises a first valve shell 11 and a second valve shell 12, the first valve shell 11 is fixedly connected with the second valve shell 12, the valve body sealing component 3 is fixedly installed outside the connecting position of the first valve shell 11 and the second valve shell 12, a valve core 13 is rotatably installed inside the first valve shell 11, a valve rod 14 is fixedly installed at the upper end of the valve core 13, the upper end of the valve rod 14 penetrates through the first valve shell 11 and extends to the upper end of the first valve shell 11, and the valve rod sealing component 2 is fixedly installed on the outer side, in contact with the valve rod 14, of the first valve shell 11;

the valve rod sealing assembly 2 comprises a bearing 21, the bearing 21 is fixedly installed at the upper end of the first valve casing 11, the valve rod 14 penetrates through the bearing 21, an air bag 22 is fixedly installed at the upper end of the first valve casing 11, the air bag 22 is sleeved on the valve rod 14, the inner side of the air bag 22 is fixedly connected with the valve rod 14, and the lower side of the air bag 22 is fixedly connected with the first valve casing 11.

A handle 15 is fixedly mounted on the upper end of the valve stem 14.

The upper end of the valve rod 14 is sleeved with a pressure plate 23, the pressure plate 23 is connected with one side of the bearing 21, and the pressure plate 23 presses and holds the air bag 22.

The pressing plate 23 is uniformly provided with connecting holes 24, one side of the bearing 21 is uniformly and fixedly provided with a pull rod 25, the pull rod 25 is inserted into the connecting holes 24, and the pressing plate 23 is fixedly connected with one side of the bearing 21 through the pull rod 25.

Referring to fig. 1-4, when in use, the first valve housing 11 is fixedly connected to the second valve housing 12, so that the valve element 13 is fixed between the first valve housing 11 and the second valve housing 12, and the handle 15 drives the valve rod 14 to rotate, so as to rotate the valve element 13, and facilitate opening and closing of the present invention, and when in use, the air bag 22 is fixed between the first valve housing 11 and the valve rod 14, so that the inner side of the air bag 22 is fixedly connected to the valve rod 14, the lower end of the air bag 22 is fixedly connected to the first valve housing 11, and the pressing plate 23 is sleeved on the valve rod 14, the upper end of the pull rod 25 is inserted into the connecting hole 24 on the pressing plate 23, and is fixed, so that the pressing plate 23 presses and holds the air bag 22, thereby improving the pressing effect between the air bag 22 and the first valve housing 11 and the valve rod 14, then the pressing plate 23 is fixedly connected to the valve rod 14, and further when the handle 15 drives the valve rod 14 to rotate, make valve rod 14 drive clamp plate 23 rotate, and clamp plate 23 drives bearing 21 through pull rod 25 and rotates, avoid pull rod 25 to influence right the utility model discloses an open and close, and when valve rod 14 rotates, make gasbag 22 take place deformation, and then when valve rod 14 rotates or resets, make gasbag 22 all the time with valve rod 14 and first valve casing 11 between looks fixed connection, improve the sealed effect between valve rod 14 and the first valve casing 11, avoid taking place to leak between valve rod 14 and first valve casing 11, improve the leakproofness of valve rod 14 position, convenient to use.

Example two

The first embodiment is added with the mode of sealing between the first valve casing 11 and the second valve casing 12.

The valve body sealing assembly 3 comprises a sealing ring 31, wherein both sides of the sealing ring 31 are fixedly provided with connecting rings 32, and the sealing ring 31 is sleeved at the connecting position of the first valve shell 11 and the second valve shell 12.

The outer side of the connecting ring 32 is uniformly provided with pin holes 33, one side of the connecting ring 32 is inserted with a rubber ring 34 through the pin holes 33, the rubber ring 34 is of a semicircular structure, and one side of the rubber ring 34 is respectively pressed with the first valve housing 11 and the second valve housing 12.

The outer side of the connecting ring 32 is connected with a limiting ring 35 in a threaded manner, a limiting plate 36 is uniformly and fixedly mounted on one side of the limiting ring 35, and the limiting plate 36 is tightly pressed with one side of the rubber ring 34.

Referring to fig. 1 to 4, when the first valve housing 11 and the second valve housing 12 are installed, two limiting rings 35 are respectively sleeved on the first valve housing 11 and the second valve housing 12, and the sealing ring 31 is sleeved between the first valve housing 11 and the second valve housing 12, after the first valve housing 11 and the second valve housing 12 are fixed, the rubber ring 34 is clamped on one side of the connecting ring 32 through the pin hole 33, and the limiting ring 35 is in threaded connection with one side of the connecting ring 32, so that the limiting plate 36 is pressed against the rubber ring 34, and further the rubber ring 34 is pressed between the limiting plate 36 and the first valve housing 11 and between the limiting plate 36 and the second valve housing 12, and further the rubber ring 34 seals two sides of the sealing ring 31, and further improves the sealing effect of the first valve housing 11 and the second valve housing 12 when connected, which is convenient to use and prolongs the service life.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flange ball valve that leakproofness is good which characterized in that: comprises a main body component (1), a valve rod sealing component (2) and a valve body sealing component (3);

the main body component (1) comprises a first valve casing (11) and a second valve casing (12), the first valve casing (11) is fixedly connected with the second valve casing (12), the valve body sealing component (3) is fixedly installed outside the connecting position of the first valve casing (11) and the second valve casing (12), a valve core (13) is rotatably installed inside the first valve casing (11), a valve rod (14) is fixedly installed at the upper end of the valve core (13), the upper end of the valve rod (14) penetrates through the first valve casing (11) and extends to the upper end of the first valve casing (11), and the valve rod sealing component (2) is fixedly installed at the outer side, in contact with the valve rod (14), of the first valve casing (11);

valve rod seal assembly (2) includes bearing (21), just bearing (21) fixed mounting be in the upper end of first valve casing (11), just valve rod (14) run through bearing (21), the upper end fixed mounting of first valve casing (11) has gasbag (22), gasbag (22) cup joint on valve rod (14), just the inboard of gasbag (22) with valve rod (14) looks fixed connection, the downside of gasbag (22) with first valve casing (11) looks fixed connection.

2. The flange ball valve with good sealing performance as claimed in claim 1, wherein: and a handle (15) is fixedly arranged at the upper end of the valve rod (14).

3. The flange ball valve with good sealing performance as claimed in claim 1, wherein: the upper end of the valve rod (14) is sleeved with a pressing plate (23), the pressing plate (23) is connected with one side of the bearing (21), and the pressing plate (23) presses the air bag (22).

4. A good sealing flange ball valve according to claim 3, wherein: connecting holes (24) are uniformly formed in the pressing plate (23), a pull rod (25) is uniformly and fixedly mounted on one side of the bearing (21), the pull rod (25) is inserted into the connecting holes (24), and the pressing plate (23) is fixedly connected with one side of the bearing (21) through the pull rod (25).

5. The flange ball valve with good sealing performance as claimed in claim 1, wherein: valve body seal assembly (3) include sealing ring (31), just the equal fixed mounting in both sides of sealing ring (31) has go-between (32), sealing ring (31) cup joint first valve casing (11) with second valve casing (12) position of being connected.

6. The good-sealing flange ball valve according to claim 5, wherein: the outer side of the connecting ring (32) is uniformly provided with pin holes (33), a rubber ring (34) is inserted into one side of the connecting ring (32) through the pin holes (33), the rubber ring (34) is of a semicircular structure, and one side of the rubber ring (34) is respectively compressed with the first valve shell (11) and the second valve shell (12).

7. The good-sealing flange ball valve as claimed in claim 6, wherein: the outside threaded connection of go-between (32) has spacing ring (35), just the even fixed mounting in one side of spacing ring (35) has limiting plate (36), limiting plate (36) with one side of rubber ring (34) is compressed tightly mutually.