CN217683287U - Flange type three-eccentric bidirectional sealing butterfly valve - Google Patents

Abstract

The utility model discloses a three eccentric two way seal butterfly valves of flange formula relates to butterfly valve technical field. The utility model discloses a valve body and flange, two flanges set up both ends around the valve body respectively, the inside valve rod that is provided with of valve body, both surfaces all are provided with the connecting block around the valve rod, the connecting block leans on outside surface connection to have a valve plate, the seal groove has all been seted up to both sides around the valve body inner wall, the valve plate leans on the outside one side to be provided with the gasket, cooperate with the seal groove, the sealed effect of valve body has been increased, the gasket outside is provided with the clamp plate, the clamp plate surface is provided with the bolt, and bolt inner passes the gasket, valve plate and connecting block, inside the precession valve rod, the stability of gasket has been ensured, the result of use of gasket has been guaranteed, two surface utensils are connected with the rubber piece about the valve rod, cooperate with the valve body inner wall, the leakproofness of valve body has further been improved, the sealed effect of multilayer has effectively been played, and convenient use.

Description

Flange type three-eccentric bidirectional sealing butterfly valve

Technical Field

The utility model belongs to the technical field of the butterfly valve, especially, relate to a flange formula triple offset two way seal butterfly valve.

Background

A butterfly valve, also called a flap valve, is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow, and is widely applied to flow adjustment in pipelines, wherein a three-eccentric butterfly valve is a common butterfly valve.

At present, the existing triple eccentric butterfly valve is only provided with a sealing pair, and after the butterfly valve is used for a long time, the butterfly valve is corroded and damaged, so that the leakage phenomenon is easy to occur, the sealing effect is poor, and the using effect and the service life of the butterfly valve are influenced. Therefore, a flange type three-eccentric bidirectional sealing butterfly valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flange formula three eccentric two way seal butterfly valve to prior art's defect and not enough.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a three eccentric two-way seal butterfly valves of flange formula, including valve body and flange, two the flange sets up both ends around the valve body respectively, the inside valve rod that is provided with of valve body, two surfaces all are provided with the connecting block around the valve rod, the connecting block is connected with the valve plate by outside surface, the seal groove has all been seted up to both sides around the valve body inner wall, the valve plate leans on the outside one side to be provided with the gasket, cooperatees with the seal groove, the gasket outside is provided with the clamp plate, the clamp plate surface is provided with the bolt, just bolt inner passes gasket, valve plate and connecting block, inside the precession valve rod, two surface utensils are connected with the sheet rubber about the valve rod, cooperate with the valve body inner wall, just the sheet rubber is semi-circular structure.

Through both sides all are provided with the gasket around the valve body is inside, with mutually supporting of seal groove, the sealed effect of valve body has effectively been improved, valve rod, the connecting block, the valve plate, connect fixedly through the bolt between gasket and the clamp plate simultaneously, the stability of gasket has been ensured, wherein the semi-circular structure of sheet rubber, cooperate with the valve body inner chamber, the inside leakproofness of valve body has further been improved, the sealed effect of multilayer has been reached, effectively prevent long-term the use back, the vice erosion that appears of sealing, damage, the phenomenon of leaking appears, the life of butterfly valve has been prolonged.

Preferably, the upper surface and the lower surface of the valve body are respectively connected with a top base and a bottom base.

Preferably, the upper end of the top base is connected with a transmission box, the upper end of the valve rod penetrates through the top base, extends into the transmission box, and is connected with a driven bevel gear.

Preferably, a driving bevel gear is meshed with the front side of the driven bevel gear, and the driving bevel gear and the driven bevel gear are meshed to drive the valve rod to rotate conveniently, so that the valve body is opened and closed.

Preferably, the lower end of the bottom base is connected with a cover plate, and the lower end of the valve rod penetrates through the bottom base to be attached to the cover plate.

Preferably, the front end of the driving bevel gear is connected with a rotating shaft, the front end of the rotating shaft penetrates through the front surface of the transmission case and is connected with a hand wheel, and the hand wheel is matched with the rotating shaft, so that the valve body can be controlled to be opened and closed conveniently.

The utility model discloses following beneficial effect has:

the utility model discloses a both sides all are provided with the gasket around the valve body is inside, with mutually supporting of seal groove, the sealed effect of valve body has effectively been improved, valve rod simultaneously, the connecting block, the valve plate, connect fixedly through the bolt between gasket and the clamp plate, the stability of gasket has been ensured, wherein the semi-circular structure of sheet rubber, cooperate with the valve body inner chamber, the inside leakproofness of valve body has further been improved, the sealed effect of multilayer has been reached, effectively prevent long-term the use back, sealed vice erosion that appears, damage, the phenomenon of leaking appears, the life of butterfly valve has been prolonged.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a front view of the present invention;

FIG. 3 isbase:Sub>A schematic structural view of section A-A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

fig. 5 is a schematic structural view of the middle valve rod of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a valve body; 2. a flange; 3. a valve stem; 4. connecting blocks; 5. a valve plate; 6. a sealing groove; 7. sealing the sheet; 8. a rubber sheet; 9. pressing a plate; 10. a bolt; 11. a drive bevel gear; 12. a driven bevel gear; 13. a top base; 14. a bottom base; 15. a cover plate; 16. a transmission case; 17. a rotating shaft; 18. a handwheel.

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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements 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 description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-5, the utility model relates to a flange type three eccentric two-way seal butterfly valve, including valve body 1 and flange 2, two flanges 2 set up both ends around valve body 1 respectively, 1 inside valve rod 3 that is provided with of valve body, both surfaces all are provided with connecting block 4 around the valve rod 3, connecting block 4 leans on outside surface to be connected with valve plate 5, seal groove 6 has all been seted up to both sides around the valve body 1 inner wall, valve plate 5 leans on the outside one side to be provided with gasket 7, cooperate with seal groove 6, the gasket 7 outside is provided with clamp plate 9, clamp plate 9 surface is provided with bolt 10, and bolt 10 the inner passes gasket 7, valve plate 5 and connecting block 4, precession inside valve rod 3, two surfaces utensil are connected with rubber piece 8 about valve rod 3, cooperate with 1 inner wall of valve body, and rubber piece 8 is semi-circular structure.

Through all being provided with gasket 7 in both sides around valve body 1 is inside, with the mutually supporting of seal groove 6, the sealed effect of valve body 1 has effectively been improved, valve rod 3 simultaneously, connecting block 4, valve plate 5, connect fixedly through bolt 10 between gasket 7 and the clamp plate 9, the stability of gasket 7 has been ensured, wherein the semi-circular structure of rubber piece 8, cooperate with 1 inner chamber of valve body, the inside leakproofness of valve body 1 has further been improved, the sealed effect of multilayer has been reached, effectively prevent long-term the use back, sealed vice erosion that appears, damage, the phenomenon of leaking appears, the life of butterfly valve has been prolonged.

Two surfaces are connected with top base 13 and bottom base 14 respectively about the valve body 1, and top base 13 upper end is connected with transmission case 16, and top base 13 is passed to valve rod 3 upper end, stretches into inside transmission case 16, is connected with driven bevel gear 12, and the meshing of driven bevel gear 12 front side has drive bevel gear 11, through the meshing of drive bevel gear 11 and driven bevel gear 12, is convenient for drive valve rod 3 and rotates, realizes opening, the closure of valve body 1.

The front end of the driving bevel gear 11 is connected with a rotating shaft 17, the front end of the rotating shaft 17 penetrates through the front surface of the transmission case 16, a hand wheel 18 is connected, and the hand wheel 18 is matched with the rotating shaft 17, so that the valve body 1 can be controlled to be opened and closed conveniently.

The lower end of the bottom base 14 is connected with a cover plate 15, and the lower end of the valve rod 3 penetrates through the bottom base 14 and is attached to the cover plate 15.

The working principle is as follows: the utility model discloses during the use, at first install valve body 1 on the pipeline through flange 2, when needing to close valve body 1, manual rotation hand wheel 18, under the drive of pivot 17, drive bevel gear 11 and rotate, combine the meshing effect of drive bevel gear 11 and driven bevel gear 12, drive valve rod 3 and rotate, along with the rotation of valve rod 3, under the effect of connecting block 4, drive valve plate 5 and rotate to the closed condition, and then drive gasket 7 card into inside seal groove 6, double-deck sealing has been realized, the sealed effect of butterfly valve has been improved, when valve rod 3 rotates, drive rubber sheet 8 and rotate, combine the semi-circular structure of rubber sheet 8, drive two rubber sheets 8 and valve body 1 both sides inner wall laminating, the sealed effect of valve body 1 has further been improved, multilayer sealed purpose has been reached, the result of use of butterfly valve has been guaranteed, the life of butterfly valve has been prolonged, and convenient to use;

wherein connecting block 4, valve plate 5, gasket 7 and clamp plate 9 pass through bolt 10 to be fixed on valve rod 3, make connecting block 4, valve plate 5, gasket 7, clamp plate 9 be connected with valve rod 3 and be overall structure, have ensured the stability of butterfly valve internals, have made things convenient for the change of later stage gasket 7 simultaneously, have improved the practicality of butterfly valve.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a three eccentric two way seal butterfly valves of flange formula, includes valve body (1) and flange (2), its characterized in that: two flange (2) set up both ends around valve body (1) respectively, valve body (1) inside is provided with valve rod (3), two surfaces all are provided with connecting block (4) around valve rod (3), connecting block (4) lean on the outside surface to be connected with valve plate (5), seal groove (6) have all been seted up to both sides around valve body (1) inner wall, valve plate (5) lean on the outside one side to be provided with gasket (7), cooperate with seal groove (6), the gasket (7) outside is provided with clamp plate (9), clamp plate (9) surface is provided with bolt (10), just bolt (10) inner passes gasket (7), valve plate (5) and connecting block (4), and precession valve rod (3) are inside, two sets of surface have about valve rod (3) are connected with rubber piece (8), cooperate with valve body (1) inner wall, just rubber piece (8) are semi-circular structure.

2. The flange type triple eccentric bidirectional sealing butterfly valve according to claim 1, wherein a top base (13) and a bottom base (14) are respectively connected to the upper surface and the lower surface of the valve body (1).

3. The flange type triple eccentric bidirectional sealing butterfly valve according to claim 2, wherein a transmission case (16) is connected to the upper end of the top base (13), and the upper end of the valve rod (3) penetrates through the top base (13) and extends into the transmission case (16) to be connected with a driven bevel gear (12).

4. A flange type triple eccentric bidirectional sealing butterfly valve according to claim 3, wherein the front side of the driven bevel gear (12) is engaged with the driving bevel gear (11).

5. The flange type three-eccentric two-way sealing butterfly valve according to claim 4, characterized in that the lower end of the bottom base (14) is connected with a cover plate (15), and the lower end of the valve rod (3) passes through the bottom base (14) and is attached to the cover plate (15).

6. The flange type triple eccentric bidirectional sealing butterfly valve according to claim 5, characterized in that a rotating shaft (17) is connected to the front end of the drive bevel gear (11), and a hand wheel (18) is connected to the front end of the rotating shaft (17) which penetrates through the front surface of the transmission case (16).

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