CN211975954U

CN211975954U - Ball valve with good sealing performance

Info

Publication number: CN211975954U
Application number: CN202020627590.1U
Authority: CN
Inventors: 戚姚捷
Original assignee: Zhongquan Group Valve Co ltd
Current assignee: Zhongquan Group Valve Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-20
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a ball valve technical field specifically is ball valve that leakproofness is good, rotate including valve body and valve body inner chamber and be provided with control valve rod, the valve body includes preceding flange, preceding flange rear end intercommunication is provided with the valve pipe, valve pipe rear end intercommunication is provided with the control chamber, control chamber top intercommunication is provided with the valve body, be provided with down the valve body under the control chamber, lower valve body bottom inner chamber cover is equipped with the sealing plug, control chamber rear end intercommunication is provided with the rear flange, the rear flange passes through bolt fixed connection connecting valve, control valve rod is including changeing the cover, change the cover and establish at valve rod card post outer wall, valve rod card post lower extreme fixed connection valve rod, valve rod bottom fixed connection spheroid, the spheroid outer wall is provided with the rubber circle, spheroid bottom fixed connection rotary column, rotary column rotates the cover and establishes at rotary column inner chamber, the utility model discloses sealing performance is good.

Description

Ball valve with good sealing performance

Technical Field

The utility model relates to a ball valve technical field specifically is the good ball valve of leakproofness.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of a medium on a pipeline, and can also close any channel to connect the other two channels, but the ball valve ball body and the valve seat sealing ring on the current market are made of metal materials, the sealing specific pressure is very large, the sealing requirement cannot be met by the pressure of the medium, and the valve rod of the ball valve is easy to wear when the ball valve rod rotates, so that the service life is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball valve that the leakproofness is good to solve the poor and valve rod easy wearing and tearing problem of ordinary ball valve leakproofness that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

ball valve that leakproofness is good, including the valve body with the valve body inner chamber rotates and is provided with control valve rod, the valve body includes preceding flange, preceding flange rear end intercommunication is provided with the valve pipe, valve pipe rear end intercommunication is provided with the control chamber, control chamber top intercommunication is provided with the valve body, be provided with down the valve body under the control chamber, valve body bottom inner chamber cover is equipped with the sealing plug down, control chamber rear end intercommunication is provided with the rear flange, the rear flange passes through bolt fixed connection connecting valve, control valve rod is including changeing the cover, change the cover and establish at valve rod card post outer wall, valve rod card post lower extreme fixed connection valve rod, valve rod bottom fixed connection spheroid, the spheroid outer wall is provided with the rubber circle, spheroid bottom fixed connection rotary column, rotary column rotates the cover and establishes at rotary groove post inner chamber.

Preferably, the connecting valve includes preceding flange, preceding flange rear end intercommunication is provided with the connecting pipe, the connecting pipe rear end intercommunication is provided with back flange, the second sealing washer is inlayed at back flange rear portion, preceding flange the connecting pipe with back flange is the integrated into one piece structure.

Preferably, the front connecting flange is fixedly connected with the rear flange through bolts, the rear flange, the control cavity, the lower valve body, the upper valve body, the valve pipe and the front flange are of an integrally formed structure, the front flange is provided with screw holes, and the front part of the front flange is embedded with a first sealing ring.

Preferably, the rubber ring is matched with the inner cavity of the control cavity, and the inner cavity of the control cavity is tightly attached and rotated by the rubber ring.

Preferably, the control chamber with the valve pipe with preceding flange meets gap department and all inlays and be equipped with spacing support, spacing support passes through the fixed setting of spring and is in the valve pipe with preceding flange inner chamber lateral wall, spacing support with rubber circle handing-over department is provided with sealed piece, sealed piece with the rubber circle outer wall closely cooperates.

Preferably, the valve rod sealing ring and the filler are sequentially arranged on the inner wall of the upper valve body from top to bottom, a plurality of grooves are formed in the valve rod sealing ring, and the inner wall of the filler and the outer wall of the valve rod are tightly attached and rotated.

Preferably, the inner cavity of the rotary cover is fixedly arranged on the outer wall of the valve rod clamping column, the rotary cover is T-shaped, and a rotary hand is sleeved on the upper end of the inner cavity of the rotary cover.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this ball valve that leakproofness is good meets gap department through control chamber and valve pipe and preceding flange and all inlays and be equipped with spacing support, and the rubber circle that sets up through sealed piece and spheroid outer wall closely cooperates the rotation, has reduced spheroidal wearing and tearing, closely laminates the rotation in the control intracavity through the rubber circle, has further guaranteed sealedly, and the wear-resisting corrosion resistance of rubber material is good.

2. This ball valve that leakproofness is good has set gradually valve rod seal circle and filler from top to bottom through setting up the valve body inner wall, and the sealing state can be guaranteed to the sealing washer, and is wear-resisting, packs and has reduced the shrinkage factor of valve rod and improve the wearability, has effectively controlled valve rod wearing and tearing.

Drawings

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

fig. 2 is a second view of the overall structure of the present invention;

FIG. 3 is a side sectional view of the overall structure of the present invention;

FIG. 4 is a partial schematic view of the structure at position A of the present invention;

FIG. 5 is a partial schematic view of the structure at B of the present invention;

fig. 6 is a partial schematic view of the structure at position C of the present invention.

In the figure: 1. a valve body; 11. a front flange; 110. a screw hole; 111. a first seal ring; 12. a valve tube; 13. a control chamber; 131. a limiting support; 132. a spring; 133. a sealing block; 14. a lower valve body; 15. a sealing plug; 16. an upper valve body; 161. a valve stem seal ring; 162. grooving; 163. a filler; 17. a rear flange; 2. a connecting valve; 21. a front attachment flange; 22. a connecting pipe; 23. a rear connecting flange; 230. a second seal ring; 3. a control valve stem; 31. rotating the cover; 310. turning the hand; 32. the valve rod is clamped with the column; 33. a valve stem; 34. a sphere; 340. a rubber ring; 341. turning the column; 35. a rotary groove column.

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.

In the description of the present invention, it should be understood that the terms "center", "center line", "longitudinal", "lateral", "length", "width", "thickness", "depth", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the invention, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

As a preferred embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the ball valve with good sealing performance includes a valve body 1 and a control valve rod 3 rotatably disposed in an inner cavity of the valve body 1, the valve body 1 includes a front flange 11, a valve tube 12 is disposed at a rear end of the front flange 11 in a communicating manner, a control cavity 13 is disposed at a rear end of the valve tube 12 in a communicating manner, an upper valve body 16 is disposed above the control cavity 13 in a communicating manner, a lower valve body 14 is disposed below the control cavity 13, a sealing plug 15 is sleeved in an inner cavity at the bottom of the lower valve body 14, a rear flange 17 is disposed at a rear end of the control cavity 13 in a communicating manner, the rear flange 17 is fixedly connected to the valve 2 through a bolt, the control valve rod 3 includes a rotary cover 31, the rotary cover 31 is sleeved on an outer wall of a valve rod clamping column 32, a lower end of, the outer wall of the sphere 34 is provided with a rubber ring 340, the bottom of the sphere 34 is fixedly connected with a rotating column 341, and the rotating column 341 is rotatably sleeved in the inner cavity of the rotating groove column 35.

Further, the connecting valve 2 comprises a front connecting flange 21, a connecting pipe 22 is communicated with the rear end of the front connecting flange 21, a rear connecting flange 23 is communicated with the rear end of the connecting pipe 22, a second sealing ring 230 is embedded in the rear portion of the rear connecting flange 23, and the front connecting flange 21, the connecting pipe 22 and the rear connecting flange 23 are of an integrally formed structure.

Concretely, preceding flange 21 passes through bolt fixed connection with rear flange 17, control chamber 13, lower valve body 14, go up valve body 16, valve pipe 12 and preceding flange 11 are the integrated into one piece structure, screw 110 has been seted up to preceding flange 11, preceding flange 11 front portion is inlayed and is equipped with first sealing washer 111, can effectively seal when connecting the water pipe through setting up first sealing washer 111, and pass through bolt fixed connection through preceding flange 21 and rear flange 17, convenient to detach, clearance spheroid 34 impurity.

Further, rubber circle 340 and control chamber 13 inner chamber looks adaptation, rubber circle 340 closely laminates the rotation in control chamber 13 inner chamber, can be effectual seal spheroid 34 through rubber circle 340, and rubber circle 340 can effectively avoid wearing and tearing.

Specifically, the control cavity 13, the valve pipe 12 and the front connecting flange 21 are connected to form a gap, a limiting support 131 is embedded in the gap, the limiting support 131 is fixedly arranged on the side wall of the inner cavity of the valve pipe 12 and the inner cavity of the front connecting flange 21 through a spring 132, a sealing block 133 is arranged at the joint of the limiting support 131 and the rubber ring 340, the sealing block 133 is tightly matched with the outer wall of the rubber ring 340, sealing is further guaranteed through the matching of the sealing block 133 and the rubber ring 340, and when the valve is closed by rotating the ball body 34, sealing can be effectively and tightly achieved.

Further, the inner wall of the upper valve body 16 is sequentially provided with a valve rod sealing ring 161 and a filler 163 from top to bottom, the valve rod sealing ring 161 is provided with a plurality of grooves 162, the groove 162 is arranged to prevent vapor from attaching to the valve rod sealing ring 161 to influence the rotation of the valve rod 33, the inner walls of the valve rod sealing ring 161 and the filler 163 are tightly attached to the outer wall of the valve rod 33 to rotate, the sealing state can be ensured through the sealing ring 161, the valve rod sealing ring is wear-resistant, the filler 163 reduces the shrinkage rate of the valve rod and improves the wear resistance, and the abrasion of.

Further, change the fixed setting in valve rod card post 32 outer wall in cover 31 inner chamber, change cover 31 and be T shape, change cover 31 inner chamber upper end cover and be equipped with and change hand 310, can drive through changing hand 310 and change cover 31 and make valve rod card post 32 drive valve rod 33 rotate.

When the ball valve with good sealing performance is used, the rotating cover 31 can be driven by the rotating hand 310 to drive the valve rod clamping column 32 to drive the valve rod 33 to rotate, because the inner wall of the upper valve body 16 is sequentially provided with the valve rod sealing ring 161 and the packing 163 from top to bottom, the valve rod sealing ring 161 is provided with the plurality of slots 162, the phenomenon that water vapor adheres to the valve rod sealing ring 161 to influence the rotation of the valve rod 33 is avoided by arranging the slots 162, the inner walls of the valve rod sealing ring 161 and the packing 163 are tightly attached to the outer wall of the valve rod 33 to rotate, the sealing state can be ensured through the sealing ring 161, the ball valve is wear-resistant, the packing 163 reduces the shrinkage rate of the valve rod and improves the wear resistance, the valve rod 33 is effectively controlled to wear, the ball body 34 is rotated through the valve rod 33, the ball body 34 can be effectively sealed through the rubber ring 340, the rubber, when the ball valve needs to be closed, the actions are repeated until the sealing ring 340 of the ball body 34 blocks the opening, and the sealing block 133 is arranged at the joint of the limiting support 131 and the rubber ring 340, so that the sealing block 133 is tightly matched with the outer wall of the rubber ring 340, the sealing is further ensured, and when the ball body 34 is rotated to close the valve, the sealing can be effectively and tightly closed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Ball valve that leakproofness is good, including valve body (1) with valve body (1) inner chamber rotates and is provided with control valve rod (3), its characterized in that: the valve body (1) comprises a front flange (11), the rear end of the front flange (11) is communicated with a valve pipe (12), the rear end of the valve pipe (12) is communicated with a control cavity (13), an upper valve body (16) is communicated and arranged above the control cavity (13), a lower valve body (14) is arranged below the control cavity (13), a sealing plug (15) is sleeved on an inner cavity at the bottom of the lower valve body (14), a rear flange (17) is communicated and arranged at the rear end of the control cavity (13), the rear flange (17) is fixedly connected with a connecting valve (2) through a bolt, the control valve rod (3) comprises a rotating cover (31), the rotating cover (31) is sleeved on the outer wall of a valve rod clamping column (32), the lower end of the valve rod clamping column (32) is fixedly connected with a valve rod (33), the bottom of the valve rod (33) is fixedly connected with a ball body (34), the outer, the bottom of the sphere (34) is fixedly connected with a rotating column (341), and the rotating column (341) is rotatably sleeved in the inner cavity of the rotating groove column (35).

2. The ball valve of claim 1, wherein: connecting valve (2) are including preceding flange (21), preceding flange (21) rear end intercommunication is provided with connecting pipe (22), connecting pipe (22) rear end intercommunication is provided with back flange (23), back flange (23) rear portion inlays and is equipped with second sealing washer (230), preceding flange (21) connecting pipe (22) with back flange (23) are the integrated into one piece structure.

3. The ball valve of claim 2, wherein: preceding flange (21) with rear flange (17) pass through bolt fixed connection, rear flange (17) control chamber (13) down valve body (14) go up valve body (16) valve pipe (12) with preceding flange (11) are the integrated into one piece structure, screw (110) have been seted up to preceding flange (11), preceding flange (11) front portion is inlayed and is equipped with first sealing washer (111).

4. The ball valve of claim 1, wherein: the rubber ring (340) is matched with the inner cavity of the control cavity (13), and the rubber ring (340) is tightly attached to the inner cavity of the control cavity (13) to rotate.

5. The ball valve of claim 3, wherein: control chamber (13) with valve pipe (12) with preceding flange (21) meet gap department and all inlay and be equipped with spacing support (131), spacing support (131) are fixed to be set up through spring (132) valve pipe (12) with preceding flange (21) inner chamber lateral wall, spacing support (131) with rubber circle (340) handing-over department is provided with sealed piece (133), sealed piece (133) with rubber circle (340) outer wall closely cooperates.

6. The ball valve of claim 1, wherein: go up valve body (16) inner wall from top to bottom and have set gradually valve rod seal (161) and filler (163), a plurality of flutings (162) have been seted up in valve rod seal (161), valve rod seal (161) with filler (163) inner wall with valve rod (33) outer wall closely laminates the rotation.

7. The ball valve of claim 1, wherein: change cover (31) inner chamber fixed setting at valve rod card post (32) outer wall, it is T shape to change cover (31), it is equipped with commentaries on classics hand (310) to change cover (31) inner chamber upper end cover.