阅读说明：本技术 一种工业球阀 (Industrial ball valve ) 是由 徐国华 于 2020-08-14 设计创作，主要内容包括：本发明涉及球阀技术领域,尤其涉及的是一种工业球阀包括阀体、球体和阀杆；所述球体安装于阀体内,所述阀体与球体之间设有阀座；所述阀杆一端穿过阀体、与球体连接；所述阀杆的另一端套设有手调机构；所述阀杆的中部安装有缸驱机构；所述手调机构与所述缸驱机构均用于驱动控制阀杆转动；所述手调机构与缸驱机构之间设有切换机构。本申请将缸驱机构与手调机构相结合,使球阀通过切换机构可实现分别有缸驱机构或手调机构调节控制阀门的开启或关闭,可有效减少因单一控制方式造成的可能因控制方式失灵导致阀门无法使用的情况发生。(The invention relates to the technical field of ball valves, in particular to an industrial ball valve which comprises a valve body, a ball body and a valve rod; the ball body is arranged in the valve body, and a valve seat is arranged between the valve body and the ball body; one end of the valve rod penetrates through the valve body and is connected with the ball body; the other end of the valve rod is sleeved with a manual adjusting mechanism; a cylinder driving mechanism is arranged in the middle of the valve rod; the manual adjusting mechanism and the cylinder driving mechanism are both used for driving the control valve rod to rotate; and a switching mechanism is arranged between the manual adjusting mechanism and the cylinder driving mechanism. This application drives the mechanism with the jar and combines together with the hand adjustment mechanism, makes the ball valve can realize having the jar to drive the mechanism or the opening or closing of hand adjustment mechanism regulation control valve respectively through switching mechanism, can effectively reduce because of the condition emergence that the control mode is out of order to lead to the valve unable use because of the control mode that single control mode caused.)

1. An industrial ball valve, characterized in that: comprises a valve body, a ball body and a valve rod; the ball body is arranged in the valve body, and a valve seat is arranged between the valve body and the ball body; one end of the valve rod penetrates through the valve body and is connected with the ball body; the other end of the valve rod is sleeved with a manual adjusting mechanism; a cylinder driving mechanism is arranged in the middle of the valve rod; the manual adjusting mechanism and the cylinder driving mechanism are both used for driving the control valve rod to rotate; and a switching mechanism is arranged between the manual adjusting mechanism and the cylinder driving mechanism.

2. The industrial ball valve as claimed in claim 1, wherein the valve stem is provided with a valve stem gear at the middle part thereof;

the cylinder drive mechanism includes:

the driving cylinder is mounted in the middle of the valve rod in an empty sleeve manner;

a piston assembly nested within the drive cylinder, an

The driving box is positioned in the driving cylinder, is connected with the piston assembly and moves along the driving cylinder along with the piston assembly; a driving block is arranged on one side of the driving box close to the valve rod, and the driving block is provided with a driving toothed plate which is matched and meshed with the valve rod gear;

the switching mechanism includes:

the vertical push plate comprises a lower wedge-shaped part and an upper toothed plate part positioned on the upper surface of the lower wedge-shaped part; the lower wedge-shaped part is positioned between one side of the driving box, which is far away from the valve rod, and the driving cylinder; the distance between one side of the lower wedge-shaped part, which is close to the driving box, and the driving cylinder is gradually increased from bottom to top; and

the switching component is arranged on the cylinder wall of the driving cylinder close to one side of the vertical push plate, is in meshing transmission with the upper toothed plate part and is used for driving the vertical push plate to move up and down;

the hand adjustment mechanism includes:

the sleeve body is fixedly arranged on the upper part of the driving cylinder; the upper end part of the valve rod is positioned in the sleeve body;

the lower conversion sleeve is sleeved at the upper end part of the valve rod, is in transmission connection with the upper end part of the valve rod and normally abuts against the upper end of the vertical push plate;

the upper conversion sleeve is arranged on the sleeve body and is positioned right above the lower conversion sleeve; a key connection structure is arranged between the upper conversion sleeve and the lower conversion sleeve; when the lower conversion sleeve is transferred to be contacted with the upper conversion sleeve, the upper conversion sleeve is in transmission connection with the lower conversion sleeve through a key connection structure; and

the hand wheel component is arranged on the upper conversion sleeve and used for driving the upper conversion sleeve to rotate, and then the upper conversion sleeve drives the lower conversion sleeve and the upper end part of the valve rod to rotate.

3. An industrial ball valve as claimed in claim 2 wherein: the piston assembly comprises a first piston and a second piston; the first piston and the second piston are sleeved in the driving cylinder in a matching manner; the first piston is positioned on one side of the valve rod, and the second piston is positioned on the other side of the valve rod; the drive case is located between the first piston and the second piston.

4. An industrial ball valve as claimed in claim 2 wherein: and a transverse pushing spring is connected between the piston assembly and the driving cylinder.

5. An industrial ball valve as claimed in claim 2 wherein said switching assembly comprises:

the adjusting rod is sleeved on the cylinder wall of the driving cylinder close to one side of the vertical push plate in a penetrating manner; the inner end part of the adjusting rod is positioned in the driving cylinder and is provided with an adjusting gear ring matched with the upper gear plate part; and

and the switching wheel is positioned outside the driving cylinder and is connected with the outer end part of the adjusting rod.

6. An industrial ball valve as claimed in claim 2 wherein: a pull spring is connected between the driving block and the driving box, and the axial direction of the pull spring is parallel to the direction in which the driving block is close to or separated from the valve rod gear.

7. An industrial ball valve as claimed in claim 2 or 6 wherein: a transverse push block and an adjusting spring are arranged between the driving block and the lower wedge-shaped part of the vertical push plate; one side of the transverse pushing block, which is far away from the driving block, is abutted against the lower wedge-shaped part; the adjusting spring is positioned between the transverse push block and the driving block; the axial direction of the adjusting spring is parallel to the direction that the driving block is close to or separated from the valve rod gear.

8. An industrial ball valve as claimed in claim 2 wherein: the inner wall of the driving cylinder is provided with a sliding groove matched with the vertical push plate, and one side, far away from the driving block, of the vertical push plate is located in the sliding groove.

9. An industrial ball valve as claimed in claim 2 wherein: the lower end surface of the upper conversion sleeve is provided with a spring mounting groove which is concave upwards; a return spring is arranged between the lower conversion sleeve and the spring mounting groove; the return spring is used for enabling the lower conversion sleeve to be lower than the vertical push plate in a normal state.

10. An industrial ball valve as claimed in claim 2 wherein: the upper end part of the valve rod is a polygonal column, and the lower conversion sleeve is sleeved on the polygonal column in a matching manner; the height of the upper toothed plate part of the vertical push plate is not higher than the axial height of the multi-side column.

Technical Field

The invention relates to the technical field of ball valves, in particular to an industrial ball valve.

Background

The ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and the ball valve (ball valve) is a valve which is driven by a valve rod to rotate around the axis of the ball valve and can be used for regulating and controlling fluid (fluid media such as gas, liquid, micro-particles and the like). In the industrial application field, when the ball valve is arranged on a pipeline, the converging, the shunting and the flow direction switching of the medium can be flexibly controlled.

The traditional ball valve is divided into the following driving modes: pneumatic ball valves, electric ball valves, manual ball valves, and generally have only one driving method.

When the ball valve with the single driving mode is used, if a driving device breaks down, the use of the ball valve is directly influenced.

Disclosure of Invention

The invention aims to overcome the defects and provide an industrial ball valve.

In order to achieve the purpose, the technical solution of the invention is as follows: an industrial ball valve comprises a valve body, a ball body and a valve rod; the ball body is arranged in the valve body, and a valve seat is arranged between the valve body and the ball body; one end of the valve rod penetrates through the valve body and is connected with the ball body; the other end of the valve rod is sleeved with a manual adjusting mechanism; a cylinder driving mechanism is arranged in the middle of the valve rod; the manual adjusting mechanism and the cylinder driving mechanism are both used for driving the control valve rod to rotate; and a switching mechanism is arranged between the manual adjusting mechanism and the cylinder driving mechanism.

Preferably, a valve rod gear is arranged in the middle of the valve rod;

the cylinder drive mechanism includes:

the driving cylinder is mounted in the middle of the valve rod in an empty sleeve manner;

the piston assembly is sleeved in the driving cylinder; and

the driving box is positioned in the driving cylinder, is connected with the piston assembly and moves along the driving cylinder along with the piston assembly; a driving block is arranged on one side of the driving box close to the valve rod, and the driving block is provided with a driving toothed plate which is matched and meshed with the valve rod gear;

the switching mechanism includes:

the vertical push plate comprises a lower wedge-shaped part and an upper toothed plate part positioned on the upper surface of the lower wedge-shaped part; the lower wedge-shaped part is positioned between one side of the driving box, which is far away from the valve rod, and the driving cylinder; the distance between one side of the lower wedge-shaped part, which is close to the driving box, and the driving cylinder is gradually increased from bottom to top; and

the switching component is arranged on the cylinder wall of the driving cylinder close to one side of the vertical push plate, is in meshing transmission with the upper toothed plate part and is used for driving the vertical push plate to move up and down;

the hand adjustment mechanism includes:

the sleeve body is fixedly arranged on the upper part of the driving cylinder; the upper end part of the valve rod is positioned in the sleeve body;

the lower conversion sleeve is sleeved at the upper end part of the valve rod, is in transmission connection with the upper end part of the valve rod and normally abuts against the upper end of the vertical push plate;

the upper conversion sleeve is arranged on the sleeve body and is positioned right above the lower conversion sleeve; a key connection structure is arranged between the upper conversion sleeve and the lower conversion sleeve; when the lower conversion sleeve is transferred to be contacted with the upper conversion sleeve, the upper conversion sleeve is in transmission connection with the lower conversion sleeve through a key connection structure; and

the hand wheel component is arranged on the upper conversion sleeve and used for driving the upper conversion sleeve to rotate, and then the upper conversion sleeve drives the lower conversion sleeve and the upper end part of the valve rod to rotate.

Preferably, the piston assembly comprises a first piston, a second piston; the first piston and the second piston are sleeved in the driving cylinder in a matching manner; the first piston is positioned on one side of the valve rod, and the second piston is positioned on the other side of the valve rod; the drive case is located between the first piston and the second piston.

Preferably, a transverse pushing spring is connected between the piston assembly and the driving cylinder.

Preferably, the switching component includes:

the adjusting rod is sleeved on the cylinder wall of the driving cylinder close to one side of the vertical push plate in a penetrating manner; the inner end part of the adjusting rod is positioned in the driving cylinder and is provided with an adjusting gear ring matched with the upper gear plate part; and

and the switching wheel is positioned outside the driving cylinder and is connected with the outer end part of the adjusting rod.

Preferably, a pull spring is connected between the driving block and the driving box, and the axial direction of the pull spring is parallel to the direction in which the driving block is close to or separated from the valve rod gear.

Preferably, a transverse push block and an adjusting spring are arranged between the driving block and the lower wedge-shaped part of the vertical push plate; one side of the transverse pushing block, which is far away from the driving block, is abutted against the lower wedge-shaped part; the adjusting spring is positioned between the transverse push block and the driving block; the axial direction of the adjusting spring is parallel to the direction that the driving block is close to or separated from the valve rod gear.

Preferably, the inner wall of the driving cylinder is provided with a sliding groove matched with the vertical pushing plate, and one side, far away from the driving block, of the vertical pushing plate is located in the sliding groove.

Preferably, the lower end surface of the upper conversion sleeve is provided with a spring installation groove which is concave upwards; a return spring is arranged between the lower conversion sleeve and the spring mounting groove; the return spring is used for enabling the lower conversion sleeve to be lower than the vertical push plate in a normal state.

Preferably, the upper end part of the valve rod is a polygonal column, and the lower conversion sleeve is sleeved on the polygonal column in a matching manner; the height of the upper toothed plate part of the vertical push plate is not higher than the axial height of the multi-side column.

By adopting the technical scheme, the invention has the beneficial effects that: this application drives the mechanism with the jar and combines together with the hand adjustment mechanism, makes the ball valve can realize having the jar to drive the mechanism or the opening or closing of hand adjustment mechanism regulation control valve respectively through switching mechanism, can effectively reduce because of the condition emergence that the control mode is out of order to lead to the valve unable use because of the control mode that single control mode caused.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from direction D-D, which mainly shows that the switching mechanism drives the manual adjustment mechanism to rotate the valve rod;

FIG. 3 is a schematic view of the structure of FIG. 1 taken in the direction E-E, which mainly shows the driving block disengaged from the valve stem cam;

FIG. 4 is a schematic view of the structure from direction D-D in FIG. 1, which mainly shows that the switching mechanism drives the cylinder driving mechanism to rotate the valve rod;

fig. 5 is a schematic view of the structure from direction E to E in fig. 1, which mainly shows that the driving block is engaged with the valve rod cam.

Description of the main reference numerals: 1. a first valve body; 2. a sphere; 3. a valve seat; 4. a filler; 5. a gland; 6. a valve stem; 61. a valve stem gear; 7. a support; 8. a drive cylinder; 9. transversely pushing the spring; 10. a first piston; 11. downwards rotating a conversion sleeve; 12. a return spring; 13. an upper conversion sleeve; 14. a hand wheel; 15. positioning a plate; 16. a polygonal column; 17. a drive box; 18. a drive block; 19. a second piston; 20. a through hole; 21. a sleeve body; 22. a second valve body; 23. adjusting the spring; 24. a transverse push block; 25. a vertical push plate; 26. adjusting a rod; 27. fixing a sleeve; 28. a switching wheel; 29. pulling the spring; 30. an extension plate; 31. a push plate.

Detailed Description

The invention is further described below with reference to the figures and the specific embodiments. The directional phrases used in this disclosure include, for example: the directional terms such as up, down, left, right, inner, outer, etc. are used only with reference to the orientation of the attached FIG. 1 of the specification. Accordingly, the directional terminology used is intended to be illustrative only and is not intended to be limiting of the invention.

As shown in fig. 1-5, the invention discloses an industrial ball valve, which comprises a valve body, a ball body 2 and a valve rod 6; the ball body 2 is arranged in the valve body, and the valve body is provided with a valve seat 3 corresponding to the ball body 2. The valve body comprises a first valve body 1 and a second valve body 22, and valve seats 3 are respectively arranged between the first valve body 1 and the second valve body 22 and the ball body 2. The upper part of the second valve body 22 close to one side of the first valve body 1 is provided with a valve rod through hole matched with the valve rod 6, and the lower end of the valve rod 6 penetrates through the valve rod through hole to be connected with the ball body 2. And a packing 4 is filled between the valve rod through hole and the valve rod 6, and a gland 5 matched with the valve rod 6 is arranged on the packing 4.

The other end of the valve rod 6 is sleeved with a manual adjusting mechanism; a cylinder driving mechanism is arranged in the middle of the valve rod 6; the manual adjusting mechanism and the cylinder driving mechanism are both used for driving the control valve rod 6 to rotate; and a switching mechanism is arranged between the manual adjusting mechanism and the cylinder driving mechanism.

A bracket 7 is arranged between the second valve body 22 and the cylinder driving mechanism, and the bracket 7 is sleeved at the lower part of the valve rod 6.

A valve rod gear 61 is arranged in the middle of the valve rod 6; the stem gear 61 is a cam. The upper end of the valve rod 6 is a polygonal column 16.

The cylinder drive mechanism comprises a drive cylinder 8, a piston assembly and a drive housing 17.

The driving cylinder 8 is provided with two through holes 20 on the wall; the driving cylinder 8 is mounted in the middle of the valve rod 6 in an empty sleeve mode. The drive cylinder 8 may be a pneumatic or hydraulic cylinder. The two through holes 20 are used for ventilation or oil passage to move the piston assembly along the drive cylinder 8.

And the piston assembly is sleeved in the driving cylinder 8 and is positioned between the two through holes 20.

The piston assembly comprises a first piston 10, a second piston 19; the first piston 10 and the second piston 19 are sleeved in the driving cylinder 8 in a matching way; the first piston 10 is positioned on one side of the valve rod 6, and the second piston 19 is positioned on the other side of the valve rod 6; the drive housing 17 is located between the first piston 10 and the second piston 19.

The through hole 20 is respectively arranged between the first piston 10 and the driving cylinder 8 and between the second piston 19 and the driving cylinder 8.

The first piston 10 and the second piston 19 are respectively provided with an extension plate 30 at the sides facing away from each other, and the extension plates 30 are used for keeping a gap between the first piston 10 and the driving cylinder 8 and keeping a gap between the second piston 19 and the driving cylinder 8.

A transverse pushing spring 9 is connected between the first piston 10 and the driving cylinder 8. A sealing ring is arranged between the second piston 19 and the driving cylinder 8.

The driving box 17 is positioned in the driving cylinder 8, normally abuts between the first piston 10 and the second piston 19, and moves along the driving cylinder 8 along with the piston assembly; a driving block 18 is arranged on one side of the driving box 17 close to the valve rod 6, and the driving block 18 is provided with a driving toothed plate which is matched and meshed with the valve rod gear 61; a pull spring 29 is connected between the driving block 18 and the driving box 17, and the axial direction of the pull spring 29 is parallel to the direction that the driving block 18 approaches or departs from the valve rod gear 61.

The switching mechanism includes a vertical push plate 25 and a switching assembly.

A vertical push plate 25 including a lower wedge portion and an upper toothed plate portion located above the lower wedge portion; the lower wedge-shaped part is positioned between one side of the driving box 17 far away from the valve rod 6 and the driving cylinder 8; the distance between one side of the lower wedge-shaped part close to the driving box 17 and the driving cylinder 8 is gradually increased from bottom to top.

The top of the vertical push plate 25 is provided with a push plate 31, and the width of the push plate 31 is larger than that of the top surface of the vertical push plate 25.

One side of the lower wedge-shaped part of the vertical push plate 25, which is close to the driving block, is an arc-shaped surface, so that the friction can be reduced, and the moving efficiency of the vertical push plate is improved.

The inner wall of the driving cylinder 8 is provided with a sliding groove matched with the vertical push plate 25, and one side, far away from the driving block 18, of the vertical push plate 25 is positioned in the sliding groove.

A transverse push block 24 and an adjusting spring 23 are arranged between the lower wedge-shaped part of the driving block 18 and the vertical push plate 25; one side of the transverse pushing block 24, which is far away from the driving block 18, is abutted against the lower wedge-shaped part; the adjusting spring 23 is positioned between the transverse pushing block 24 and the driving block 18; the axial direction of the adjusting spring 23 is parallel to the direction in which the driving block 18 approaches or separates from the valve stem gear 61.

And the switching component is arranged on the cylinder wall of the driving cylinder 8 close to one side of the vertical push plate 25, is in meshing transmission with the upper toothed plate part and is used for driving the vertical push plate 25 to move up and down. The switching assembly includes an adjustment lever 26 and a switching wheel 28.

The adjusting rod 26 is sleeved on the cylinder wall of the driving cylinder 8 close to one side of the vertical push plate 25; the inner end of the adjusting rod 26 is positioned in the driving cylinder 8 and is provided with an adjusting gear ring matched with the upper gear plate part. The adjusting rod 26 is fixed on the cylinder wall of the driving cylinder 8 through a fixing sleeve 27 and a fixing sleeve 27.

The switching wheel 28 is located outside the drive cylinder 8 and connected to the outer end of the adjustment rod 26.

The hand adjusting mechanism comprises a sleeve body 21, a lower conversion sleeve 11, an upper conversion sleeve 13 and a hand wheel 14 assembly.

The sleeve body 21 is fixedly arranged at the upper part of the driving cylinder 8; the upper end part of the valve rod 6 is positioned in the sleeve body 21;

and the lower conversion sleeve 11 is sleeved at the upper end part of the valve rod 6, is in transmission connection with the upper end part of the valve rod 6 and normally abuts against the push plate 31 of the vertical push plate 25. The lower conversion sleeve 11 is sleeved on the polygonal column 16 in a matching way; the height of the upper toothed plate portion is not higher than the axial height of the polygonal column 16.

The upper conversion sleeve 13 is arranged on the sleeve body 21 and is positioned right above the lower conversion sleeve 11; a key connection structure is arranged between the upper conversion sleeve 13 and the lower conversion sleeve 11; when the lower conversion sleeve 11 is moved up to be contacted with the upper conversion sleeve 13, the upper conversion sleeve 13 is in transmission connection with the lower conversion sleeve 11 through a key connection structure.

The key-type connection structure is including locating the recess of terminal surface under the upper transfer cover 13, locating the sand grip of lower transfer cover 11 up end, sand grip and groove phase-match.

The lower end surface of the upper conversion sleeve 13 is provided with a spring installation groove which is concave upwards; a return spring 12 is arranged between the lower conversion sleeve 11 and the spring mounting groove; the return spring 12 is used to keep the lower transfer sleeve 11 normally lower than the vertical push plate 25.

The upper surface of the sleeve body 21 is in threaded connection with a positioning plate 15, the middle part of the upper conversion sleeve 13 is fixedly arranged on the positioning plate 15, and the upper part of the upper conversion sleeve 13 penetrates through the positioning plate 15 and is positioned on the sleeve body 21.

And the hand wheel 14 assembly is arranged on the upper conversion sleeve 13 and used for driving the upper conversion sleeve 13 to rotate, so that the upper conversion sleeve 13 drives the lower conversion sleeve 11 and the upper end part of the valve rod 6 to rotate. The handwheel 14 assembly includes a handwheel 14.

The industrial ball valve has two driving modes, can be switched to be driven by a manual adjusting mechanism or a cylinder driving mechanism through a switching mechanism at any time, enables the valve rod 6 to drive the ball body 2 to rotate, and achieves opening or closing of the valve.

The process of switching from the cylinder drive mechanism to the hand adjustment mechanism:

rotatory switching wheel 28 and regulation pole 26 because the rack and pinion motion that forms between regulation pole 26 and the perpendicular push pedal 25 drives perpendicular push pedal 25 and moves upward, erects push pedal 25 and promotes down the transition cover 11 and move upward, in the recess of transition cover 13 is gone up in the sand grip embedding on the lower transition cover 11 (if the sand grip does not aim at the recess, then can be appropriate rotatory hand wheel 14, make the recess aim at the sand grip can). At this time, the pushing force of the driving block 18 provided by the adjusting spring 23 to the valve rod 6 direction is smaller than the pulling force of the driving block 18 provided by the pulling spring 29 to separate from the valve rod 6, the driving block 18 moves towards the direction departing from the valve rod 6, and then the valve rod 6 and the ball body 2 can be driven to rotate by rotating the hand wheel 14, so that the valve is manually opened or closed.

The process of switching the manual adjusting mechanism to the cylinder driving mechanism is as follows:

the switching wheel 28 and the adjusting rod 26 are rotated, and the gear rack motion is formed between the adjusting rod 26 and the vertical push plate 25, so that the vertical push plate 25 is driven to move downwards, the vertical push plate 25 pushes the transverse push block 24 to move in the direction of the valve rod 6, and the transverse push block 24 pushes the adjusting spring 23 to compress towards one side of the valve rod 6 in the direction.

When the adjusting spring 23 provides a pushing force of the driving block 18 towards the valve rod 6 which is larger than the pulling force of the pulling spring 29 providing the driving block 18 away from the valve rod 6, the driving block 18 moves towards the valve rod 6, and continuously drives the vertical push plate 25 to move downwards to push the driving block 18 to move towards the valve rod 6, when the driving block 18 and the valve rod 6 form a gear-rack connection, the toothed plate of the driving block 18 is engaged with the valve rod gear 61 to drive the driving block 18 to move, the driving block 18 and the valve rod 6 automatically form a gear-rack connection to stop rotating the switching wheel 28, at this time, the lower switching sleeve 11 moves downwards under the action of the return spring 12 to separate from the upper switching sleeve 13, then, the cylinder driving mechanism can be driven, so that the valve rod 6 is driven to rotate by the cylinder driving mechanism, the first piston 10 and the second piston 19 are driven to move by the cylinder driving mechanism, the valve rod 6 and the ball body 2 are driven to rotate, and the valve is manually opened or closed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the present invention, and all equivalent variations and modifications made in the claims of the present invention should be included in the scope of the present invention.