CN211175433U - Bidirectional sealing three-eccentric butterfly valve - Google Patents

Abstract

The utility model discloses a three eccentric butterfly valves of two way seal, including valve body and valve rod, the vertical rotatable inside of fixing at the valve body of valve rod, and one side of valve rod is fixed with the butterfly plate through the fixed block, and the valve rod is connected with the hand wheel transmission of valve, the side outer lane of butterfly plate encircles the parcel and is fixed with the rubber circle, and the rubber circle arranges the valve body inside in and seted up the draw-in groove, the cell body has all been seted up to the valve body inner wall surface of draw-in groove both sides, and the both sides outer lane surface of butterfly plate all is fixed with the sheet rubber through the gim peg, and the end of sheet rubber arranges the cell body in, the both. The utility model discloses an all be fixed with the sheet rubber through the fastening bolt in the butterfly plate both sides outer lane surface of butterfly valve, the contact of the valve body inner wall of sheet rubber and butterfly plate both sides can provide better sealed effect from the both sides of butterfly plate, increases eccentric butterfly valve's sealed effect and life, and is comparatively practical, is fit for extensively promoting and using.

Description

Bidirectional sealing three-eccentric butterfly valve

Technical Field

The utility model relates to an eccentric butterfly valve technical field specifically is a two-way sealed triple offset butterfly valve.

Background

At present, the valve rod axis deviates from the disc center and the body center simultaneously, and the valve seat rotation axis has a certain angle with the valve body channel axis, so the valve is called as a triple eccentric butterfly valve, which is widely used in industrial pipelines of electric power, petrochemical industry, water supply and drainage, municipal construction and the like, and used for adjusting flow and carrying and cutting off fluid, and the butterfly valve used in some petrochemical industry needs to have better sealing effect.

The existing triple eccentric butterfly valve is generally only provided with a sealing structure at one side of a butterfly plate or the edge of the outer ring of the butterfly plate, and when the triple eccentric butterfly valve is used, the sealing structure is subjected to high pressure and can be subjected to frequent friction, so that the sealing structure is damaged, and the sealing effect is influenced. Therefore, we propose a two-way sealing triple offset butterfly valve.

Disclosure of Invention

An object of the utility model is to provide a three eccentric butterfly valves of two way seal all is fixed with the sheet rubber through the fastening bolt on the butterfly plate both sides outer lane surface of butterfly valve, and the sheet rubber contacts with the valve body inner wall of butterfly plate both sides, can provide better sealed effect from the both sides of butterfly plate, increases eccentric butterfly valve's sealed effect and life, and is comparatively practical, is fit for extensively promoting and using, has solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a bidirectional sealing triple eccentric butterfly valve comprises a valve body and a valve rod, wherein the valve rod is vertically and rotatably fixed inside the valve body, a butterfly plate is fixed on one side of the valve rod through a fixing block, and the valve rod is in transmission connection with a hand wheel of the valve;

The side outer lane of butterfly plate encircles the parcel and is fixed with the rubber circle, and the rubber circle arranges the valve body inside in seted up the draw-in groove, the cell body has all been seted up to the valve body inner wall surface of draw-in groove both sides, and the both sides outer lane surface of butterfly plate all is fixed with the sheet rubber through the fastening bolt, and in the cell body was arranged in to the end of sheet rubber, the both ends of valve body all are connected with the flange.

As a preferred embodiment of the utility model, a rubber pad is separated between the bolt cap and the rubber sheet of the fastening bolt, and the rubber pad is sleeved and fixed on the outer ring of the fastening bolt.

As an optimal implementation manner of the present invention, the outer ring surface of the flange has been provided with a plurality of through holes, and the plurality of through holes are uniformly distributed on the outer ring of the flange.

As a preferred embodiment of the present invention, the flange is fixed at both ends of the valve body by welding.

As an preferable embodiment of the present invention, the fixing block is connected to the butterfly plate as an integral structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model discloses a three eccentric butterfly valves of two way seal all is fixed with the sheet rubber through the fastening bolt on the butterfly plate both sides outer lane surface at the butterfly valve, and the sheet rubber contacts with the valve body inner wall of butterfly plate both sides, can provide better sealed effect from the both sides of butterfly plate, increases eccentric butterfly valve's sealed effect and life, and is comparatively practical, is fit for extensively promoting and using.

2. The utility model discloses a three eccentric butterfly valves of two way seal has the rubber pad through separating between the bolt cap that makes the fastening bolt and the sheet rubber, and the rubber pad cover puts and fixes the outer lane at the fastening bolt, and the rubber pad can make the fastening bolt and the sheet rubber between the contact comparatively inseparable, avoids the fastening bolt and the junction of sheet rubber to produce the phenomenon of gas leakage.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of a bidirectional sealing triple offset butterfly valve of the present invention;

Fig. 2 is the flange structure schematic diagram of the two-way sealed three-eccentric center butterfly valve of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a flange; 4. a trough body; 5. a rubber sheet; 6. fastening bolts; 7. a butterfly plate; 8. a rubber ring; 9. a rubber pad; 10. a card slot; 11. a fixed block; 12. and a through hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being 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 description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: a bidirectional sealing triple eccentric butterfly valve comprises a valve body 1 and a valve rod 2, wherein the valve rod 2 is vertically and rotatably fixed inside the valve body 1, a butterfly plate 7 is fixed on one side of the valve rod 2 through a fixing block 11, and the valve rod 2 is in transmission connection with a hand wheel of the valve;

The side outer lane of butterfly plate 7 encircles the parcel and is fixed with rubber ring 8, and rubber ring 8 arranges in 1 inside draw-in groove 10 of having seted up of valve body, cell body 4 has all been seted up to 1 inner wall surface of valve body at draw-in groove 10 both sides, and the both sides outer lane surface of butterfly plate 7 all is fixed with sheet rubber 5 through fastening bolt 6, and the end of sheet rubber 5 arranges in cell body 4, the both ends of valve body 1 all are connected with flange 3.

In this embodiment (please refer to fig. 1 and 2), the rubber sheets 5 are fixed on the outer ring surfaces of the two sides of the butterfly plate 7 of the butterfly valve through the fastening bolts 6, and the rubber sheets 5 are in contact with the inner walls of the valve body 1 at the two sides of the butterfly plate 7, so that a better sealing effect can be provided from the two sides of the butterfly plate 7, and the sealing effect and the service life of the eccentric butterfly valve are increased.

Wherein, a rubber pad 9 is arranged between the bolt cap of the fastening bolt 6 and the rubber sheet 5, and the rubber pad 9 is sleeved and fixed on the outer ring of the fastening bolt 6.

In this embodiment (see fig. 1), a rubber pad 9 is disposed between the cap of the fastening bolt 6 and the rubber sheet 5, and the rubber pad 9 is sleeved and fixed on the outer ring of the fastening bolt 6, so that the rubber pad 9 can make the fastening bolt 6 and the rubber sheet 5 contact tightly, thereby preventing the joint between the fastening bolt 6 and the rubber sheet 5 from generating air leakage.

The outer ring surface of the flange 3 is provided with a plurality of through holes 12, and the plurality of through holes 12 are uniformly distributed on the outer ring of the flange 3.

In this embodiment (see fig. 1 and fig. 2), the butterfly valve can be mounted and fixed through the through hole on the flange 3.

Wherein, the flange 3 is fixed at the tail ends of two sides of the valve body 1 in a welding mode.

Wherein, the fixed block 11 is connected with the butterfly plate 7 to form an integral structure.

It should be noted that the utility model relates to a two-way sealing triple offset butterfly valve, which comprises a valve body 1, a valve rod 2, a flange 3, a groove body 4, a rubber sheet 5, a fastening bolt 6, a butterfly plate 7, a rubber ring 8, a rubber pad 9, a clamping groove 10, a fixing block 11 and a through hole 12, wherein the components are all universal standard components or components known by technicians in the field, the structure and the principle of the butterfly valve can be known by technicians in the field through technical manuals or conventional experimental methods, when the butterfly valve is in operation, the butterfly plate 7 is fixedly installed, when the butterfly valve is closed, the butterfly plate 7 is in close contact with the inner wall of the valve body 1 through the rubber ring 8, the butterfly valve has better sealing effect, the rubber sheets 5 at two sides are in close contact with the groove body 4 inside the valve body 1, the sealing effect of the valve body 1 is increased from two sides of the butterfly plate 7, when the butterfly valve needs to be opened, the valve, the opening purpose of the valve body 1 is realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a three eccentric butterfly valves of two way seal, includes valve body (1) and valve rod (2), its characterized in that: the valve rod (2) is vertically and rotatably fixed in the valve body (1), a butterfly plate (7) is fixed on one side of the valve rod (2) through a fixing block (11), and the valve rod (2) is in transmission connection with a hand wheel of the valve;

The side outer lane of butterfly plate (7) encircles the parcel and is fixed with rubber circle (8), and rubber circle (8) arrange valve body (1) inside in seted up draw-in groove (10), cell body (4) have all been seted up on valve body (1) inner wall surface of draw-in groove (10) both sides, and the both sides outer lane surface of butterfly plate (7) all is fixed with sheet rubber (5) through fastening bolt (6), and the end of sheet rubber (5) arranges in cell body (4), the both ends of valve body (1) all are connected with flange (3).

2. A bi-directional sealed triple offset butterfly valve according to claim 1, wherein: a rubber pad (9) is arranged between the bolt cap of the fastening bolt (6) and the rubber sheet (5), and the rubber pad (9) is sleeved and fixed on the outer ring of the fastening bolt (6).

3. A bi-directional sealed triple offset butterfly valve according to claim 1, wherein: through-hole (12) have been seted up on the outer lane surface of flange (3), through-hole (12) are a plurality of, and the even distribution in flange (3) outer lane of a plurality of through-holes (12).

4. A bi-directional sealed triple offset butterfly valve according to claim 1, wherein: the flanges (3) are fixed at the tail ends of the two sides of the valve body (1) in a welding mode.

5. A bi-directional sealed triple offset butterfly valve according to claim 1, wherein: the fixing block (11) is connected with the butterfly plate (7) to form an integral structure.

Images