CN111623137A

CN111623137A - Quick-release sealing ball valve

Info

Publication number: CN111623137A
Application number: CN202010527364.0A
Authority: CN
Inventors: 杨连成; 谢建国; 杨杰; 王学鹏
Original assignee: Jinggong Valve Co Ltd
Current assignee: Jinggong Valve Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-09-04

Abstract

The invention discloses a quick-release sealing ball valve which comprises a valve body with an inner cavity, a valve cover arranged on the valve body and a valve rod arranged on the valve cover and penetrating into the inner cavity, wherein a ball body is arranged in the inner cavity, a mounting groove is arranged in the inner cavity, a valve seat matched with the ball body to form sealing is arranged in the mounting groove, a detachable linkage assembly enabling the ball body to rotate along with the valve rod is arranged between the valve rod and the ball body, a replacing opening communicated with the outside and the inner cavity and used for taking out the ball body is arranged at the bottom of the valve body, a cover plate used for opening and closing the sealing replacing opening is arranged on the valve body, a moving gap used for enabling the valve seat to reciprocate towards the ball body is formed between the mounting groove and the. The invention has the following advantages and effects: the invention can realize convenient disassembly and assembly maintenance on the sphere, thereby reducing the workload of workers and achieving better sealing effect.

Description

Quick-release sealing ball valve

Technical Field

The invention relates to a valve, in particular to a quick-release sealing ball valve.

Background

The ball valve product is widely applied to hydraulic system pipelines in various industries such as electric power, petrochemical industry, metallurgy, ocean, petroleum, natural gas, coal gas, pharmacy and the like. The ball valve is driven by the valve rod to rotate around the axis of the ball valve, and can also be used for regulating and controlling fluid, wherein a strong shearing force is generated between the ball core of the hard seal type ball valve and a metal valve seat of the surfacing hard alloy, and the 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 the medium on the pipeline, and can close any channel to connect the other two channels.

In the working process of the ball valve, the relative abrasion between the ball body and the valve seat and the scouring of the ball body by a fluid medium cause the ball body to belong to a quick-wear part in the using process, and the service life of the ball body also determines the service life of the ball valve. If the existing ball valve needs to maintain or replace the ball body, a lot of other parts of the ball valve need to be disassembled and assembled in the disassembling and assembling process, so that the disassembling and assembling maintenance operation of the ball body is complicated, and the workload is large.

Disclosure of Invention

The invention aims to provide a quick-release sealing ball valve which can realize convenient disassembly and assembly maintenance on a ball body, so that the workload of workers is reduced.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a quick detach sealing ball valve, includes the valve body that has the inner chamber, sets up in the valve gap of valve body and installs in the valve rod that the inner chamber just wears to establish in the valve gap, the intracavity is equipped with the spheroid, the intracavity is equipped with the mounting groove, be equipped with the cooperation spheroid in the mounting groove and form sealed disk seat, be equipped with between valve rod and the spheroid and make the spheroid along with valve rod pivoted linkage assembly dismantled, the bottom of valve body is equipped with the external change mouth that just supplies the spheroid to take out with the inner chamber of intercommunication, be equipped with the apron that is used for opening and close sealed change mouth on the valve body, be formed with the removal clearance that supplies the disk seat towards spheroid reciprocating motion between mounting groove and the disk seat, be equipped.

Through adopting above-mentioned technical scheme, when will carrying out the dismouting to the spheroid and maintain, will seal the apron on changing the mouth and open, control drive control assembly makes the disk seat keep away from the spheroid and does not constitute to block to the spheroid, and the detachable linkage subassembly that deuterogamies can be dismantled just can be easily take out the spheroid from the valve body, and this kind of dismouting operation can not take place to interfere with other parts of ball valve to it is more convenient to make spheroidal dismouting maintenance operation, reduces workman's work load. After the ball body is maintained, the ball body is arranged in the inner cavity, the ball body is linked with the valve rod through the detachable linkage assembly, then the driving control assembly is controlled to drive the valve seat to move towards the ball body, the ball body and the valve seat are abutted to form sealing fit, and the structure can also adjust the sealing grade between the valve seat and the ball body, so that the ball valve is always in the best sealing state.

Further setting the following steps: the drive control assembly comprises an elastic connecting block arranged between the mounting groove and the valve seat, a telescopic air cavity arranged in the elastic connecting block, an air inlet channel arranged in the valve body and communicated with the outside and the telescopic air cavity, and a control valve arranged in the air inlet channel, wherein the elastic connecting block is back to one side of the ball body and fixedly connected with the mounting groove, and faces one side of the ball body and fixedly connected with the valve seat.

Through adopting above-mentioned technical scheme, the break-make of control valve for controlling the intake duct lets in gas through the intake duct towards flexible air cavity inside, drives the outside inflation of elastic connection piece along with the increase of pressure in the flexible air cavity and drives the motion of disk seat towards spheroid direction, realizes supporting tightly sealed between the two. When the gas in the telescopic gas cavity is pumped out, the pressure in the telescopic gas cavity is reduced to drive the elastic connecting block to contract inwards to drive the valve seat to move back to the direction of the sphere, so that the valve seat cannot block the sphere, and the sphere is taken out or installed in the inner cavity.

Further setting the following steps: the elastic connecting block is fixedly connected with the mounting groove to form a connecting part, and a through hole for communicating the air inlet channel with the telescopic air cavity is formed in the connecting part.

Through adopting above-mentioned technical scheme, this kind of setting makes the elastic connection piece use connecting portion to drive the disk seat as the fixed point and do reciprocating motion towards the spheroid, and the setting of through-hole is used for realizing sealed between the intake duct and the flexible air cavity by connecting portion, need not set up extra seal structure.

Further setting the following steps: the inner ring of the elastic connecting block is provided with a positioning ring for supporting the elastic connecting block, one end of the positioning ring is fixedly connected with the valve body, and a movable gap for the valve seat to move is formed between the other end of the positioning ring and the valve seat.

Through adopting above-mentioned technical scheme, the setting of holding ring plays the guide effect to expanding elastic connection piece, and better guide elastic connection piece expands towards spheroid one side to realize more effective drive to the disk seat. And the setting of holding ring enables elastic connection block when the inflation, and realize inseparabler counterbalance between the mounting groove sealed to play better sealed effect between mounting groove and disk seat.

Further setting the following steps: the detachable linkage assembly comprises an insertion block arranged on the valve rod and an insertion hole arranged on the ball body and used for the insertion block to be inserted and matched with the insertion block.

Through adopting above-mentioned technical scheme, the inserted block injects the jack and is used for realizing linkage between valve rod and the spheroid between the two to reach the detachable purpose, this kind of simple structure, stability, reliability height.

Further setting the following steps: the locking device comprises a locking bolt which penetrates through a cover plate and is in threaded connection with a valve body, and a sealing ring is arranged between the cover plate and the valve body.

Through adopting above-mentioned technical scheme, the setting up of sealing washer promotes the leakproofness between apron and the valve body, can realize through the locking bolt that the inseparabler locking between apron and the valve body is sealed.

Further setting the following steps: the cover plate is provided with a positioning column which is coaxial with the valve rod, the bottom of the ball body is provided with a positioning hole for the positioning column to be embedded in, and the positioning column extends into the positioning hole and is in rotating fit with the positioning hole.

By adopting the technical scheme, the positioning column and the positioning hole are matched to play a role in positioning and supporting the rotating ball body, so that the stable rotation of the ball body is ensured.

In conclusion, the invention has the following beneficial effects: the invention can realize convenient disassembly and assembly maintenance on the sphere, thereby reducing the workload of workers and achieving better sealing effect.

Drawings

FIG. 1 is a sectional view of the embodiment;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. an inner cavity; 2. a valve body; 3. a valve cover; 4. a valve stem; 5. a sphere; 6. mounting grooves; 7. a valve seat; 8. replacing the port; 9. a cover plate; 10. moving the gap; 11. a drive control assembly; 111. an elastic connecting block; 112. a telescopic air cavity; 113. an air inlet channel; 114. a control valve; 12. a connecting portion; 13. a through hole; 14. a positioning ring; 15. a clearance for movement; 16. inserting a block; 17. a jack; 18. locking the bolt; 19. a seal ring; 20. a positioning column; 21. and (7) positioning the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a quick-release sealing ball valve comprises a valve body 2 with an inner cavity 1, a valve cover 3 fixedly arranged above the valve body 2, and a valve rod 4 installed on the valve cover 3 and penetrating into the inner cavity 1, wherein a ball body 5 is arranged in the inner cavity 1, an installation groove 6 is formed in the inner cavity 1, and a valve seat 7 matched with the ball body 5 to form a seal is arranged in the installation groove 6. Be equipped with between valve rod 4 and the spheroid 5 and make spheroid 5 along with valve rod 4 pivoted detachable linkage assembly, the change mouth 8 that the intercommunication is external and inner chamber 1 and supply spheroid 5 to take out is seted up to the bottom of valve body 2, is equipped with the apron 9 that is used for opening and close sealed change mouth 8 on the valve body 2, and locking bolt 18 passes apron 9 and valve body 2 threaded connection to realize apron 9 to changing mouthful 8 sealed, be equipped with sealing washer 19 between apron 9 and the valve body 2.

A moving gap 10 for reciprocating the valve seat 7 towards the ball 5 is formed between the mounting groove 6 and the valve seat 7, and a driving control assembly 11 for controlling the movement of the valve seat 7 is arranged between the mounting groove 6 and the valve seat 7. The driving control assembly 11 comprises an elastic connecting block 111 arranged between the mounting groove 6 and the valve seat 7, a telescopic air cavity 112 arranged in the elastic connecting block 111, an air inlet 113 arranged on the valve body 2, and a control valve 114 fixedly arranged on the air inlet 113, wherein one side of the elastic connecting block 111, which is back to the sphere 5, is fixedly bonded with the wall of the mounting groove 6 to form a connecting part 12, and one side, which faces the sphere 5, is fixedly bonded with the valve seat 7.

A through hole 13 for communicating the air inlet 113 with the telescopic air cavity 112 is formed on the connecting portion 12, one end of the air inlet 113, which is back to the through hole 13, is communicated with the outside, and the control valve 114 is arranged on the outer side of the valve body 2, the elastic connecting block 111 is made of rubber, and the control valve 114 is specifically a ball valve. The inner ring of the elastic connecting block 111 is provided with a positioning ring 14 for supporting the elastic connecting block 111, one end of the positioning ring 14 is fixedly connected with the valve body 2, and a movable gap 15 for the valve seat 7 to move is formed between the other end of the positioning ring 14 and the valve seat 7.

The detachable linkage assembly comprises an insertion block 16 integrally arranged on the valve rod 4 and an insertion hole 17 which is arranged on the ball body 5 and is used for the insertion block 16 to insert and match with the insertion block, and the end surface of the insertion block 16 is rectangular. The cover plate 9 is fixedly provided with a positioning column 20 coaxially arranged with the valve rod 4, the bottom of the sphere 5 is provided with a positioning hole 21 for embedding the positioning column 20, and the positioning column 20 extends into the positioning hole 21 and is in rotating fit with the positioning hole 21.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a quick detach seals ball valve, includes valve body (2) that have inner chamber (1), sets up in valve gap (3) of valve body (2) and installs in valve gap (3) and wear to establish valve rod (4) into inner chamber (1), be equipped with spheroid (5) in inner chamber (1), be equipped with mounting groove (6) in inner chamber (1), be equipped with in mounting groove (6) and cooperate spheroid (5) to form sealed disk seat (7), its characterized in that: be equipped with between valve rod (4) and spheroid (5) and make spheroid (5) along with valve rod (4) pivoted detachable linkage subassembly, the bottom of valve body (2) is equipped with the change mouth (8) that communicate external world and inner chamber (1) and supply spheroid (5) to take out, be equipped with on valve body (2) and be used for opening and close sealed apron (9) of changing mouth (8), be formed with between mounting groove (6) and disk seat (7) and supply disk seat (7) towards spheroid (5) reciprocating motion's removal clearance (10), be equipped with between mounting groove (6) and disk seat (7) and be used for controlling drive control assembly (11) that disk seat (7) removed.

2. The quick release sealed ball valve of claim 1, wherein: drive control subassembly (11) including set up elastic connection piece (111) between mounting groove (6) and disk seat (7), set up flexible air cavity (112) in elastic connection piece (111), set up in valve body (2) and communicate outside and intake duct (113) of flexible air cavity (112) and set up in control valve (114) of intake duct (113), one side and mounting groove (6) fixed connection, towards one side and disk seat (7) fixed connection of spheroid (5) of elastic connection piece (111) back to spheroid (5).

3. The quick release sealed ball valve of claim 2, wherein: the elastic connecting block (111) is fixedly connected with the position of the mounting groove (6) to form a connecting part (12), and a through hole (13) for communicating the air inlet channel (113) with the telescopic air cavity (112) is formed in the connecting part (12).

4. The quick release sealed ball valve of claim 2, wherein: the inner ring of the elastic connecting block (111) is provided with a positioning ring (14) used for supporting the elastic connecting block (111), and a movable gap (15) for the valve seat (7) to move is formed between one end of the positioning ring (14) and the valve body (2) and between the other end of the positioning ring and the valve seat (7).

5. The quick release sealed ball valve of claim 1, wherein: the detachable linkage assembly comprises an insertion block (16) arranged on the valve rod (4) and an insertion hole (17) which is arranged on the ball body (5) and used for the insertion block (16) to insert and matched with the ball body.

6. The quick release sealed ball valve of claim 1, wherein: the valve is characterized by comprising a locking bolt (18) penetrating through a cover plate (9) and in threaded connection with a valve body (2), and a sealing ring (19) is arranged between the cover plate (9) and the valve body (2).

7. The quick release sealed ball valve of claim 1, wherein: the cover plate (9) is provided with a positioning column (20) which is coaxial with the valve rod (4), the bottom of the sphere (5) is provided with a positioning hole (21) for the positioning column (20) to be embedded into, and the positioning column (20) extends into the positioning hole (21) and is in running fit with the positioning hole.