CN211315201U - Eccentric ball valve - Google Patents
Eccentric ball valve Download PDFInfo
- Publication number
- CN211315201U CN211315201U CN201922304893.XU CN201922304893U CN211315201U CN 211315201 U CN211315201 U CN 211315201U CN 201922304893 U CN201922304893 U CN 201922304893U CN 211315201 U CN211315201 U CN 211315201U
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- valve body
- valve
- hemisphere
- opening
- eccentric ball
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Abstract
The utility model discloses an eccentric ball valve, which comprises a valve body, the valve body both sides are provided with the opening, the valve body have the cavity and with the opening intercommunication, be provided with the hemisphere in the cavity, the hemisphere rotates with the lower extreme of valve rod to be connected, the upper end and the setting of valve rod are connected at the outside drive division of valve body, the drive division can drive the hemisphere at the cavity internal rotation, be provided with the sealing washer on one of them open-ended inner wall, sealing washer and hemisphere contact, detachable is provided with the disk seat in the opening that is provided with the sealing washer, be provided with a plurality of through-holes on the disk seat, disk seat and hemisphere contact, the opening both sides that are provided with the sealing washer all are provided with the draw-in groove portion, the both ends of disk seat imbed two draw-in portions respectively and lock on the valve body through the bolt.
Description
Technical Field
The utility model relates to an industrial valve technical field, concretely relates to eccentric ball valve.
Background
The ball valve is one of the comparatively extensive valve of application, its simple structure, it is sealed reliable, easy maintenance, by the wide application in the existing eccentric ball valve in fields such as petroleum, chemical industry, metallurgy, light textile, food, atomic energy, aviation, the spheroid of current eccentric ball valve can take place wearing and tearing with the valve body and cause the leakproofness to reduce when rotatory, cause gas or liquid to reveal, the disk seat of current eccentric ball valve adopts the horizontal installation mode, after long-time work, it is inconvenient to dismantle the disk seat and inspect or change the operation half spheroid, consequently to eccentric ball valve, the leakproofness is low, the disk seat is difficult to dismantle the problem that we will solve.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide an eccentric ball valve which can improve the sealing performance and is convenient to disassemble and check.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the valve comprises a valve body, wherein openings are formed in two sides of the valve body, the valve body is provided with a cavity and communicated with the openings, a hemisphere is arranged in the cavity and is rotatably connected with the lower end of a valve rod, the upper end of the valve rod is connected with a driving part arranged outside the valve body, the driving part can drive the hemisphere to rotate in the cavity, a sealing ring is arranged on the inner wall of one opening and is in contact with the hemisphere;
the detachable is provided with the disk seat in the opening that is provided with the sealing washer, is provided with a plurality of through-holes on the disk seat, and disk seat and hemisphere contact are provided with the opening both sides of sealing washer and all are provided with the draw-in groove portion, and the both ends of disk seat imbed two draw-in groove portions respectively and pass through bolt locking on the valve body.
The utility model relates to an eccentric ball valve, the hemisphere is set up in the cavity of the valve body, cavity and both sides opening of the valve body communicate, the hemisphere rotates with the lower extreme of the valve stem to be connected, the upper end of the valve stem is connected with the drive division, the drive division drives the valve stem to rotate, the valve stem further drives the hemisphere to rotate in the cavity, cavity and one of them opening intercommunication department are provided with the sealing washer, when the valve stem drives the hemisphere to rotate 90 degrees in the cavity, the sealing washer separates from the hemisphere, fluid can flow out through the through hole of the valve seat at this moment, when the valve stem drives the hemisphere to rotate 90 degrees in the cavity again, realize hemisphere and sealing washer laminating, the sealing washer avoids fluid to reveal, the sealing washer has improved the leakproofness of ball valve, two slot parts are set up on the both sides of the valve body opening, two slot parts are respectively embedded into at the, the bolt is unscrewed from the clamping groove part and the valve seat, the valve seat is detached, the valve seat is cleaned or replaced, the semispherical body can be checked, and after the check is finished, the valve seat is manually locked on the valve body through the rotating bolt.
As a further improvement of the utility model, the driving part is a hand wheel, the hand wheel shaft of the hand wheel and the upper end of the valve rod are fixedly connected, the hand wheel is rotated manually, and the hand wheel shaft drives the valve rod to rotate.
As a further improvement of the utility model, a support shell is arranged between the hand wheel and the valve rod, the support shell is fixedly arranged at the top of the valve body through a screw and a nut, and the hand wheel shaft is rotatably arranged at the support shellInner unionWith valve rod upper end fixed connection, support casing plays supporting role to the hand wheel, plays dustproof effect simultaneously to hand wheel axle and valve rod.
As a further improvement, the end face of the valve body contacting with the valve rod is provided with a groove, the groove is filled with flexible graphite, the flexible graphite contacts with the valve rod, and when the valve rod rotates in the valve body, the flexible graphite plays a role in protection, thereby avoiding abrasion caused by long-term work of the valve body and the valve rod.
As a further improvement, the utility model is provided with a buffer gasket between the clamping groove part and the valve seat, thereby reducing the impact force received by the valve seat when the fluid passes through.
As a further improvement of the utility model, the fixed bearing that is provided with in hemisphere bottom is provided with the pivot in the bearing, and pivot one end is passed bearing and hemisphere inner wall contact, and the pivot other end passes the lower terminal surface of valve body and fixed, and the valve rod drives the hemisphere and rotates, and pivot one end is fixed on the valve body, and the pivot other end passes bearing and hemisphere inner wall contact, and the hemisphere bottom rotates on the pivot, makes the hemisphere more stable.
As a further improvement of the utility model, the lower end face of the valve body is provided with a bottom cover, the bottom cover is locked on the valve body through a nut component, the bottom cover contacts with the lower end of the pivot shaft and tightly pushes the upper end of the pivot shaft and the inner wall of the hemispheroid, the bottom cover is locked on the valve body, and the pivot shaft and the hemispheroid are tightly pushed by the bottom cover to keep the pivot shaft stable.
Drawings
Fig. 1 is a sectional view of the present embodiment.
In the figure:
1-a valve body; 2-hemisphere; 3-sealing ring; 4-a cavity; 5-valve stem; 6-valve seat; 7-a slot section; 8-a screw; 9-a hand wheel; 10-a stent shell; 11-flexible graphite; 12-a buffer shim; 13-a bearing; 14-a pivot; 15-bottom cover.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the attached drawing 1, the eccentric ball valve of the present embodiment includes a valve body 1, openings are disposed on two sides of the valve body 1, the valve body 1 has a cavity 4 and is communicated with the openings, a hemisphere 2 is disposed in the cavity 4, the hemisphere 2 is rotatably connected with a lower end of a valve rod 5, an upper end of the valve rod 5 is connected with a driving part disposed outside the valve body 1, the driving part can drive the hemisphere 2 to rotate in the cavity 4, a sealing ring 3 is disposed on an inner wall of one of the openings, and the sealing ring 3 is in contact with the hemisphere 2;
the valve seat 6 is detachably arranged in the opening provided with the sealing ring 3, the valve seat 6 is provided with a plurality of through holes, the valve seat 6 is contacted with the hemisphere 2, the two sides of the opening provided with the sealing ring 3 are both provided with clamping groove parts 7, the two ends of the valve seat 6 are respectively embedded into the two clamping groove parts 7 and locked on the valve body 1 through bolts, when the valve rod 5 drives the hemisphere 2 to rotate 90 degrees in the cavity 4, the sealing ring 3 is separated from the hemisphere 2, at the moment, fluid can flow out through the through holes of the valve seat 5, when the valve rod 5 drives the hemisphere 2 to rotate 90 degrees in the cavity 4 again, the hemisphere 2 and the 3 are jointed, the sealing ring 3 avoids fluid leakage, the sealing performance of the ball valve is improved by the sealing ring 3, after working for a certain time, the bolts are manually rotated, the bolts are screwed out from the clamping groove parts 7 and the valve, meanwhile, the semi-sphere 2 can be checked, and after the check is finished, the valve seat 6 is manually locked on the valve body 1 through a rotating bolt.
The driving part of this embodiment is a hand wheel 9, a hand wheel shaft of the hand wheel 9 is fixedly connected with the upper end of the valve rod 5, the hand wheel 9 is rotated manually, and the hand wheel 9 shaft drives the valve rod 5 to rotate.
Be provided with support casing 10 between this embodiment hand wheel 9 and valve rod 5, support casing 10 passes through the fixed setting at 1 top of valve body of 8 nut screws, and the hand wheel axle rotates to be set up in support casing 10 and with valve rod 5 upper end fixed connection, and support casing 10 plays dustproof effect to hand wheel axle and valve rod 5.
The terminal surface of the valve body 1 and the contact of valve rod 5 of this embodiment sets up the recess, and the recess intussuseption is filled with flexible graphite 11, and flexible graphite 11 and the contact of valve rod 5, flexible graphite 11 play the guard action, avoid the two to work for a long time and produce wearing and tearing.
A cushion pad 12 is provided between the pocket portion 7 and the valve seat 6 in this embodiment, so that the impact force applied to the fluid through the valve seat 6 is reduced.
The lower end surface of the valve body 1 of the embodiment is fixedly provided with a pivot 14, the upper end of the pivot 14 penetrates through a bearing 13 to be rotatably connected with the hemisphere 2, the bearing 13 is fixedly arranged at the bottom of the hemisphere 2, and the bottom of the hemisphere 2 rotates on the pivot 14, so that the hemisphere 2 is more stable.
In the embodiment, the lower end surface of the valve body 1 is provided with a bottom cover 15, the bottom cover 15 is fixedly connected with the lower end of the pivot 14 and tightly supports the upper end of the pivot against the inner wall of the hemisphere 2, the bottom cover 15 is locked at the bottom of the valve body 1 through a nut assembly, and the bottom cover 15 tightly supports the pivot 14 against the hemisphere 2, so that the pivot 14 is kept stable.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. The utility model provides an eccentric ball valve, includes valve body (1), valve body (1) both sides all are provided with the opening, valve body (1) cavity (4) have and communicate with the opening, be provided with hemisphere (2) in cavity (4), hemisphere (2) are connected with valve rod (5) lower extreme rotation, valve rod (5) upper end is connected with the drive division that sets up in valve body (1) outside, the drive division can drive hemisphere (2) at cavity (4) internal rotation, its characterized in that: a sealing ring (3) is arranged on the inner wall of one opening, and the sealing ring (3) is in contact with the hemispheroid (2);
be provided with detachable is provided with disk seat (6) in the opening of sealing washer (3), be provided with a plurality of through-holes on disk seat (6), disk seat (6) and hemisphere (2) contact are provided with the opening both sides of sealing washer (3) all are provided with draw-in groove portion (7), the both ends of disk seat (6) imbed two draw-in groove portions (7) respectively and lock on valve body (1) through the bolt.
2. An eccentric ball valve according to claim 1, wherein: the driving part is a hand wheel (9), and a hand wheel shaft of the hand wheel (9) is fixedly connected with the upper end of the valve rod (5).
3. An eccentric ball valve according to claim 2, wherein: a support shell (10) is arranged between the hand wheel (9) and the valve rod (5), the support shell (10) is fixedly arranged at the top of the valve body (1) through a screw (8) and a nut, and the hand wheel shaft is rotatably arranged in the support shell (10) and is fixedly connected with the upper end of the valve rod (5).
4. An eccentric ball valve according to claim 1, wherein: the valve body (1) sets up the recess with the terminal surface of valve rod (5) contact, the recess intussuseption is filled with flexible graphite (11), flexible graphite (11) and valve rod (5) contact.
5. An eccentric ball valve according to claim 1, wherein: and a buffer gasket (12) is arranged between the clamping groove part (7) and the valve seat (6).
6. An eccentric ball valve according to claim 1, wherein: the lower end face of the valve body (1) is fixedly provided with a pivot (14), the upper end of the pivot (14) is rotatably connected with the hemisphere (2) through a bearing (13), and the bearing (13) is fixedly arranged at the bottom of the hemisphere (2).
7. An eccentric ball valve according to claim 6, wherein: the lower end face of the valve body (1) is provided with a bottom cover (15), the bottom cover (15) is fixedly connected with the lower end of the pivot (14) and tightly supports the upper end of the pivot and the inner wall of the hemispheroid (2), and the bottom cover (15) is locked at the bottom of the valve body (1) through a nut assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922304893.XU CN211315201U (en) | 2019-12-19 | 2019-12-19 | Eccentric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922304893.XU CN211315201U (en) | 2019-12-19 | 2019-12-19 | Eccentric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315201U true CN211315201U (en) | 2020-08-21 |
Family
ID=72082692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922304893.XU Active CN211315201U (en) | 2019-12-19 | 2019-12-19 | Eccentric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211315201U (en) |
-
2019
- 2019-12-19 CN CN201922304893.XU patent/CN211315201U/en active Active
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