CN212986073U

CN212986073U - Eccentric hard seal butterfly valve

Info

Publication number: CN212986073U
Application number: CN202021921493.XU
Authority: CN
Inventors: 宋亮; 王立波
Original assignee: Hebei Kaike Valve Co ltd
Current assignee: Hebei Kaike Valve Co ltd
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2021-04-16
Anticipated expiration: 2030-09-05

Abstract

The utility model relates to the technical field of valves, and discloses an eccentric hard seal butterfly valve, which comprises a valve body, the inner wall of the valve body is arranged with two ends inclined towards the middle part, a disc plate is arranged at the middle shaft in the valve body, a sealing washer is annularly arranged on the outer surface of the disc plate, arc-shaped grooves are arranged at the upper end and the lower end of the inner wall of the valve body, the both ends surface and two arc wall inner wall contacts about seal ring, the utility model discloses an under the mutually supporting of dish board, seal ring and arc wall, played the separation effect to the interior fluid of valve body, guaranteed the sealed effect between dish board and seal ring and the valve body, make it can have good leakproofness, the rethread sets up the draw-in groove, it is rotatory to make the valve rod can the fixed point, can not produce the skew, avoid causing the influence to the sealed effect between dish board and seal ring and the valve body, the effectual leakproofness of having guaranteed between dish board and seal ring and the valve body.

Description

Eccentric hard seal butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically be an eccentric butterfly valve sealed firmly.

Background

The valve is not available in national economy, and has close relation with production, construction, national defense and people's life. The valve is a control part installed in fluid conveying systems such as various pipelines and equipment, and consists of a valve body, a valve clack, a valve cover, a valve seat, a valve rod, a sealing element and the like, and has the functions of diversion, stopping, throttling, shunting, overflowing pressure relief and the like, wherein the valve comprises a triple eccentric hard seal butterfly valve which is used as a part for realizing the on-off and flow control of a pipeline system and has been widely applied to multiple fields such as petroleum, chemical engineering, metallurgy, water and electricity.

The eccentric hard seal butterfly valve has very important sealing performance in order to guarantee accurate control of on-off and flow control of a pipeline system, but most of the eccentric hard seal butterfly valves in the prior art cannot be effectively guaranteed in sealing performance, so that the eccentric hard seal butterfly valve is provided.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an eccentric butterfly valve sealed firmly to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an eccentric hard seal butterfly valve comprises a valve body, wherein the inner wall of the valve body is inclined towards the middle part at two ends, a disc plate is arranged at a middle shaft in the valve body, a sealing gasket is annularly arranged on the outer surface of the disc plate, arc-shaped grooves are formed in the upper end and the lower end of the inner wall of the valve body, the outer surfaces of the upper end and the lower end of the sealing gasket are contacted with the inner walls of the two arc-shaped grooves, a valve rod is arranged on the left side of the disc plate, a clamping groove is formed in the bottom of the inner wall of the valve body and is positioned at the bottom of the valve rod, an installation seat is arranged at the top of the valve body and is connected with the valve body through bolts, the top of the valve rod penetrates through the valve body and extends into the installation seat, the top of the valve rod is arranged in a hexagonal shape, a, the fixing ring is not in contact with the inner wall of the mounting seat, the two ends of the inner wall of the mounting seat are fixedly connected with clamping blocks, the bottoms of the two ends of the fixing ring are respectively in contact with the two clamping blocks, and the outer surface of the rotating rod is sleeved with a spring.

Preferably, the dish plate is circular, an annular groove is formed in the middle of the outer surface of the dish plate, the sealing washer is matched with the annular groove in shape, and the sealing washer is clamped with the dish plate through the annular groove.

Preferably, the outer surface of the valve rod is sleeved with two fixing seats, the two fixing seats are fixedly connected with the two valve rods respectively, and the two fixing seats are fixedly connected with the inner wall of the disc plate respectively.

Preferably, the draw-in groove is "protruding" shape setting, the valve rod runs through the draw-in groove and extends to inside the draw-in groove, valve rod bottom fixedly connected with stopper, the stopper is located inside the draw-in groove, stopper and valve rod surface are equallyd divide and are do not contacted with the draw-in groove inner wall.

Preferably, the bottom of the valve body is provided with an outlet pipe, the outlet pipe is communicated with the clamping groove, and the bottom of the outlet pipe is provided with a switch valve.

Preferably, a hard sealing ring is arranged above the valve rod and is located inside the mounting seat, and the hard sealing ring is in contact with the valve body.

Preferably, the bottom of the rotating rod is provided with an inner hexagonal, the rotating rod is inserted into the valve rod, and the outer surface of the top of the valve rod is in contact with the inner wall of the bottom of the rotating rod.

Preferably, the bottom of the spring is in contact with the fixing ring, and the top of the spring is in contact with the inner wall of the mounting seat.

Compared with the prior art, the utility model provides an eccentric butterfly valve sealed firmly possesses following beneficial effect:

1. the utility model discloses an under mutually supporting at dish board, seal ring and arc wall, played the interior fluidic separation effect of valve body, guaranteed the sealed effect between dish board and seal ring and the valve body, make it can have good leakproofness, the rethread sets up the draw-in groove, it is rotatory to make the valve rod fix a point, can not produce the skew, avoid causing the influence to the sealed effect between dish board and seal ring and the valve body, the effectual leakproofness of having guaranteed between dish board and seal ring and the valve body.

2. The utility model discloses a set up between bull stick and the valve rod for plug-in connection, avoid valve rod length overlength to lead to the easy cracked phenomenon of atress to take place, also can dismantle bull stick and valve rod through opening the mount pad simultaneously, make its maintenance comparatively convenient, the bull stick is under the mutually supporting between solid fixed ring, spring and fixture block, guarantee and the valve rod between the zonulae occludens, the practicality is higher, it is convenient to change.

Drawings

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

fig. 2 is an enlarged schematic view of the present invention a;

fig. 3 is an enlarged schematic view of the present invention B.

In the figure: 1 valve body, 2 dish boards, 3 seal ring, 4 arc walls, 5 valve rods, 6 fixing seats, 7 limiting blocks, 8 clamping grooves, 9 outlet pipes, 10 mounting seats, 11 rotating rods, 12 rotating handles, 13 fixing rings, 14 springs and 15 clamping blocks.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an eccentric hard seal butterfly valve comprises a valve body 1, wherein the inner wall of the valve body 1 is inclined towards the middle at two ends, a disc plate 2 is arranged at the middle shaft in the valve body 1, the disc plate 2 is circular, an annular groove is formed in the middle of the outer surface of the disc plate 2, a seal gasket 3 is matched with the annular groove in shape, the seal gasket 3 is clamped with the disc plate 2 through the annular groove, a seal gasket 3 is annularly arranged on the outer surface of the disc plate 2, arc grooves 4 are formed in the upper end and the lower end of the inner wall of the valve body 1, the outer surfaces of the upper end and the lower end of the seal gasket 3 are contacted with the inner walls of the two arc grooves 4, the separation effect on fluid in the valve body 1 is achieved through the mutual matching of the disc plate 2, the seal gasket 3 and the arc grooves 4, the sealing effect between the disc plate 2 and the seal gasket 3 and the valve body 1, the disc plate 2, the sealing effect between the sealing washer 3 and the valve body 1 is prevented from being influenced, the sealing performance between the disc plate 2 and the sealing washer 3 and the valve body 1 is effectively ensured, the left side of the disc plate 2 is provided with a valve rod 5, the outer surface of the valve rod 5 is sleeved with two fixing seats 6, the two fixing seats 6 are respectively and fixedly connected with the two valve rods 5, the two fixing seats 6 are respectively and fixedly connected with the inner wall of the disc plate 2, the bottom of the inner wall of the valve body 1 is provided with a clamping groove 8, the clamping groove 8 is in a convex shape, the valve rod 5 penetrates through the clamping groove 8 and extends into the clamping groove 8, the bottom of the valve rod 5 is fixedly connected with a limiting block 7, the limiting block 7 is positioned inside the clamping groove 8, the limiting block 7 and the outer surface of the valve rod 5 are respectively contacted with the inner wall, the clamping groove 8 is positioned at the bottom of the valve rod 5, the top of the valve body 1 is provided with a mounting seat 10, a hard sealing ring is arranged above the valve rod 5, the hard sealing ring is positioned inside the mounting seat 10 and is contacted with the valve body 1, the mounting seat 10 is connected with the valve body 1 through a bolt, the top of the valve rod 5 penetrates through the valve body 1 and extends into the mounting seat 10, the top of the valve rod 5 is arranged in a hexagon shape, a rotating rod 11 is arranged inside the mounting seat 10, the bottom of the rotating rod 11 is arranged in an inner hexagon shape, the rotating rod 11 is inserted into the valve rod 5, the outer surface of the top of the valve rod 5 is contacted with the inner wall of the bottom of the rotating rod 11, the top of the rotating rod 11 penetrates through the mounting seat 10 and extends to the outside of the mounting seat 10, the top of the rotating rod 11 is fixedly connected with a rotating handle 12, the outer surface of the rotating rod 11 is fixedly connected with a fixing ring, avoid 5 overlengths of valve rod to lead to the easy cracked phenomenon of atress to take place, simultaneously also can be through opening mount pad 10, dismantle bull stick 11 and valve rod 5, it is comparatively convenient to make its maintenance, bull stick 11 is at solid fixed ring 13, under the mutually supporting between spring 14 and the fixture block 15, guarantee and the valve rod 5 between zonulae occludens, the practicality is higher, it is convenient to change, gu fixed ring 13 both ends bottom is equallyd divide do not contact with two

fixture blocks

15, 11 outer surface covers of bull stick have spring 14, spring 14 bottom and solid fixed ring 13 contact, spring 14 top and mount pad 10 inner wall contact.

When using, the fluid in the pipeline is inside valve body 1, rotate handle 12 through rotating, make and rotate handle 12 and drive valve rod 5 through bull stick 11 and rotate, thereby can make valve rod 5 drive dish 2 and seal ring 3 rotate, make fluid can pass through valve body 1, when needs cut off fluid, reverse rotation rotate handle 12 can, through dish 2, seal ring 3 and arc wall 4 carry out the separation to the fluid, guarantee the sealed effect between dish 2 and seal ring 3 and the valve body 1.

To sum up, the utility model has the advantages that under the mutual matching of the disc plate 2, the sealing washer 3 and the arc-shaped groove 4, the separation effect on the fluid in the valve body 1 is achieved, the sealing effect between the disc plate 2 and the sealing washer 3 and the valve body 1 is ensured, the sealing performance is good, the valve rod 5 can rotate at fixed point by arranging the clamping groove 8, the deviation is avoided, the influence on the sealing effect between the disc plate 2 and the sealing washer 3 and the valve body 1 is avoided, the sealing performance between the disc plate 2 and the sealing washer 3 and the valve body 1 is effectively ensured, the phenomenon that the valve rod 5 is easy to break due to the overlong length is avoided by arranging the inserting connection between the rotating rod 11 and the valve rod 5, meanwhile, the rotating rod 11 and the valve rod 5 can be detached by opening the mounting base 10, the maintenance is convenient, the rotating rod 11 is under the mutual matching of the fixed ring 13, the spring 14 and the clamping block 15, the tight connection between the valve rod and the valve rod 5 is ensured, the practicability is higher, and the replacement is convenient.

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 an eccentric butterfly valve sealed firmly, includes valve body (1), its characterized in that: the inner wall of the valve body (1) is inclined towards the middle at two ends, a disc plate (2) is arranged at the middle shaft in the valve body (1), a sealing washer (3) is annularly arranged on the outer surface of the disc plate (2), arc-shaped grooves (4) are formed in the upper end and the lower end of the inner wall of the valve body (1), the outer surfaces of the upper end and the lower end of the sealing washer (3) are in contact with the inner walls of the two arc-shaped grooves (4), a valve rod (5) is arranged on the left side of the disc plate (2), a clamping groove (8) is formed in the bottom of the inner wall of the valve body (1), the clamping groove (8) is positioned at the bottom of the valve rod (5), a mounting seat (10) is arranged at the top of the valve body (1), the mounting seat (10) is connected with the valve body (1) through a bolt, the top, mount pad (10) inside be provided with bull stick (11), bull stick (11) top runs through mount pad (10) and extends to mount pad (10) outside, bull stick (11) top fixedly connected with rotates handle (12), bull stick (11) outer fixed surface is connected with solid fixed ring (13), gu fixed ring (13) not with mount pad (10) inner wall contact, mount pad (10) inner wall both ends equal fixedly connected with fixture block (15), gu fixed ring (13) both ends bottom is equallyd divide do not contact with two fixture blocks (15), bull stick (11) outer surface cover has spring (14).

2. An eccentric hard seal butterfly valve according to claim 1, wherein: the dish board (2) is circular, the annular groove has been seted up at dish board (2) surface middle part, seal ring (3) and annular groove's shape looks adaptation, seal ring (3) pass through annular groove and dish board (2) joint.

3. An eccentric hard seal butterfly valve according to claim 1, wherein: valve rod (5) surface cover has two fixing base (6), two fixing base (6) are equallyd divide respectively with two valve rod (5) fixed connection, two fixing base (6) are equallyd divide respectively with dish board (2) inner wall fixed connection.

4. An eccentric hard seal butterfly valve according to claim 1, wherein: draw-in groove (8) are "protruding" shape setting, inside draw-in groove (8) and extend to draw-in groove (8) are run through in valve rod (5), valve rod (5) bottom fixedly connected with stopper (7), stopper (7) are located inside draw-in groove (8), stopper (7) and valve rod (5) surface are equallyd divide do not contact with draw-in groove (8) inner wall.

5. An eccentric hard seal butterfly valve according to claim 1, wherein: an outlet pipe (9) is arranged at the bottom of the valve body (1), the outlet pipe (9) is communicated with the clamping groove (8), and a switch valve is arranged at the bottom of the outlet pipe (9).

6. An eccentric hard seal butterfly valve according to claim 1, wherein: a hard sealing ring is arranged above the valve rod (5), the hard sealing ring is located inside the mounting seat (10), and the hard sealing ring is in contact with the valve body (1).

7. An eccentric hard seal butterfly valve according to claim 1, wherein: the bottom of the rotating rod (11) is provided with an inner hexagonal, the rotating rod (11) is inserted into the valve rod (5), and the outer surface of the top of the valve rod (5) is in contact with the inner wall of the bottom of the rotating rod (11).

8. An eccentric hard seal butterfly valve according to claim 1, wherein: the bottom of the spring (14) is in contact with the fixing ring (13), and the top of the spring (14) is in contact with the inner wall of the mounting seat (10).