CN212273071U

CN212273071U - Soft sealing butterfly valve

Info

Publication number: CN212273071U
Application number: CN202020534896.2U
Authority: CN
Inventors: 窦佳乐; 葛继光
Original assignee: Tianjin Binhai Qiangsheng Valve Co ltd
Current assignee: Tianjin Binhai Qiangsheng Valve Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-01-01
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a soft sealing butterfly valve, including butterfly valve body and flange seat, the equal fixedly connected with flange seat in both ends of butterfly valve body, two the equal impartial a plurality of fixed screws that are provided with in edge of flange seat, the middle part top of butterfly valve body is provided with the valve gap, one side that the valve gap was kept away from at butterfly valve body middle part is provided with the valve plate base, the inboard fixedly connected with synthetic rubber layer of butterfly valve body, the inboard middle part position in synthetic rubber layer is provided with the rubber bulge loop, the inside fixedly connected with rolling bearing of valve plate base, the inside butterfly valve plate that is connected with of valve plate base. The utility model discloses in, set up synthetic rubber layer and rubber bulge loop inside the butterfly valve body, the problem that the leakproofness that the carbide outer lane on the cooperation butterfly valve plate can significantly reduce wearing and tearing brought reduces has improved the life of valve greatly, has strengthened the practicality of device.

Description

Soft sealing butterfly valve

Technical Field

The utility model relates to an animal remedy production facility technical field especially relates to a soft seal butterfly valve.

Background

The butterfly valve is also called as a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which has a closing member (a valve clack or a butterfly plate) as a disk and can rotate around a valve shaft to open and close; can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The edge at butterfly valve plate generally sets up the flexible material sealing washer at current soft seal butterfly valve carries out soft seal, but long-time switching back, can lead to the wearing and tearing intensity of flexible material sealing washer too high, has seriously influenced the sealing strength of butterfly valve, has reduced the life of valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a soft sealing butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a soft seal butterfly valve comprises a butterfly valve body and flange seats, wherein the two ends of the butterfly valve body are fixedly connected with the flange seats, the edges of the two flange seats are equally provided with a plurality of fixing screw holes, a valve cover is arranged above the middle part of the butterfly valve body, one side of the middle part of the butterfly valve body, which is far away from the valve cover, is provided with a valve plate base, the inner side of the butterfly valve body is fixedly connected with a synthetic rubber layer, the middle part of the inner side of the synthetic rubber layer is provided with a rubber convex ring, a rotating bearing is fixedly connected inside the valve plate base, the inner part of the valve plate base is rotatably connected with a butterfly valve plate through the rotating bearing, one end of the butterfly valve plate, which is far away from the valve plate base, penetrates through the rubber convex ring and is fixedly connected with a valve plate transmission, the valve plate transmission shaft passes the one end of valve gap and is connected with the valve handle through the axis of rotation, the valve gap top and the corresponding fixedly connected with handle fixing base in position of valve handle, the valve handle is kept away from the one end below both sides of valve plate transmission shaft and is all provided with spacing piece, two the fixed pinhole, two have all been seted up to the bottom of spacing piece the inside handle fixed pin that is provided with of fixed pinhole.

As a further description of the above technical solution:

the butterfly valve plate includes valve plate main part, carbide outer lane, valve plate axle and seal ring, the outside edge fixedly connected with carbide outer lane of valve plate main part, the valve plate axle pass the middle part of valve plate main part and with valve plate main part fixed connection, the valve plate axle all fixed cup joints at the both ends of valve plate main part has seal ring.

As a further description of the above technical solution:

sealing rings are arranged at the joints of the inner part of the butterfly valve body and the two ends of the valve plate shaft.

As a further description of the above technical solution:

the interiors of the two sealing rings are respectively fixedly sleeved with the sealing ring rings at the corresponding positions.

As a further description of the above technical solution:

and polytetrafluoroethylene coatings are arranged on the surfaces of the synthetic rubber layer and the rubber convex ring.

As a further description of the above technical solution:

the valve handle is fixedly clamped with the handle fixing seat through the two limiting pieces.

The utility model discloses following beneficial effect has:

1. the utility model discloses set up synthetic rubber layer and rubber bulge loop inside the butterfly valve body, the problem that the leakproofness that the carbide outer lane on the cooperation butterfly valve plate can the significantly reduced wearing and tearing bring reduces has improved the life of valve greatly, has strengthened the practicality of device.

2. The utility model discloses a be provided with rolling bearing in the valve plate base, but the resistance of certain reduction switching valve has alleviateed the use burden, has strengthened the practicality of device.

3. The utility model discloses the valve handle and the handle fixing base simple structure that set up have strengthened the use simplicity under the condition that does not influence the valve performance, have improved the practicality of device.

Drawings

Fig. 1 is a sectional view of a soft seal butterfly valve provided by the present invention;

fig. 2 is a side view of a soft seal butterfly valve provided by the present invention;

fig. 3 is a schematic structural view of a butterfly valve plate of a soft seal butterfly valve provided by the present invention;

illustration of the drawings:

1. a butterfly valve body; 2. a flange seat; 3. a synthetic rubber layer; 4. a valve plate base; 5. a rotating bearing; 6. A butterfly valve plate; 7. a valve plate drive shaft; 8. a valve cover; 9. a seal ring; 10. a rubber convex ring; 11. a rotating shaft; 12. a valve handle; 13. a handle holder; 14. a limiting sheet; 15. a fixing pin hole; 16. a handle fixing pin; 17. fixing screw holes; 601. a valve plate main body; 602. a hard alloy outer ring; 603. a valve plate shaft; 604. and sealing the ferrule.

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

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, 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.

Referring to fig. 1-3, the present invention provides an embodiment: a soft seal butterfly valve comprises a butterfly valve body 1 and flange seats 2, wherein both ends of the butterfly valve body 1 are fixedly connected with the flange seats 2, the edges of the two flange seats 2 are equally provided with a plurality of fixing screw holes 17, a valve cover 8 is arranged above the middle part of the butterfly valve body 1, one side of the middle part of the butterfly valve body 1, which is far away from the valve cover 8, is provided with a valve plate base 4, the inner side of the butterfly valve body 1 is fixedly connected with a synthetic rubber layer 3, the middle part of the inner side of the synthetic rubber layer 3 is provided with a rubber convex ring 10, a rotating bearing 5 is fixedly connected inside the valve plate base 4, the resistance for opening and closing the valve can be reduced to a certain degree, the use burden is lightened, the practicability of the device is enhanced, a butterfly valve plate 6 is rotatably connected inside the valve plate base 4 through the rotating bearing 5, the end of the valve plate transmission shaft 7 far away from the butterfly valve plate 6 passes through the valve cover 8 to be rotationally connected with the valve cover 8, the end of the valve plate transmission shaft 7 passing through the valve cover 8 is fixedly connected with the rotating shaft 11, the end of the valve plate transmission shaft 7 passing through the valve cover 8 is rotationally connected with the valve handle 12 through the rotating shaft 11, the position above the valve cover 8 corresponding to the valve handle 12 is fixedly connected with the handle fixing seat 13, the valve handle 12 and the handle fixing seat 13 which are arranged in the utility model have simple structure, the use simplicity is enhanced under the condition of not influencing the valve performance, the practicability of the device is improved, the two sides below the end of the valve handle 12 far away from the valve plate transmission shaft 7 are both provided with the limiting pieces 14 for clamping the handle fixing seat 13, the bottom parts of the two limiting pieces 14 are both provided with the fixing pin holes 15, the, the utility model discloses set up synthetic rubber layer 3 and rubber bulge loop 10 inside butterfly valve body 1, the problem that the leakproofness that carbide outer lane 602 on the cooperation butterfly valve plate 6 can the significantly reduced wearing and tearing brought reduces has improved the life of valve greatly, has strengthened the practicality of device.

The butterfly valve plate 6 comprises a valve plate main body 601, a hard alloy outer ring 602, a valve plate shaft 603 and a sealing ring 604, the hard alloy outer ring 602 is fixedly connected to the outer edge of the valve plate main body 601 to reduce abrasion and corrosion, the valve plate shaft 603 penetrates through the middle of the valve plate main body 601 and is fixedly connected with the valve plate main body 601, the sealing ring 604 is fixedly sleeved at each of two ends of the valve plate main body 601 of the valve plate shaft 603, sealing rings 9 are arranged at joints of the inner part of the butterfly valve body 1 and the two ends of the valve plate shaft 603 for sealing, the inner parts of the two sealing rings 9 are fixedly sleeved with the sealing rings 604 at corresponding positions respectively, polytetrafluoroethylene coatings are arranged on the surfaces of the synthetic rubber layer 3 and the rubber convex ring 10 to enhance abrasion resistance and corrosion resistance, and the valve handle 12 is fixedly clamped with the handle.

The working principle is as follows: the utility model discloses when the valve is closed, through valve handle 12 through two spacing pieces 14 with 3 fixed joints of handle fixing base, make butterfly valve plate 6 perpendicular with 1 inside axial direction of butterfly valve body, carbide outer lane 602 on the butterfly valve plate 6 is in the interference fit state with rubber bulge loop 10, thereby make the valve be in soft encapsulated situation, when the valve is opened to needs, pull down two handle fixed pins 16 of spacing piece 14 below, directly mention valve handle 12 and make two spacing pieces 14 leave handle fixing base 3, twist valve handle 12, make the butterfly valve plate rotatory round the axis of valve plate axle 603 through valve plate transmission shaft 7, rotation angle is between 0 ~ 90, when rotatory 90, the valve is then for the full open mode.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a soft seal butterfly valve, includes butterfly valve body (1) and flange seat (2), its characterized in that: the butterfly valve comprises a butterfly valve body (1), flange seats (2) are fixedly connected to the two ends of the butterfly valve body (1), a plurality of fixing screw holes (17) are uniformly formed in the edges of the two flange seats (2), a valve cover (8) is arranged above the middle of the butterfly valve body (1), a valve plate base (4) is arranged on one side, away from the valve cover (8), of the middle of the butterfly valve body (1), a synthetic rubber layer (3) is fixedly connected to the inner side of the butterfly valve body (1), a rubber convex ring (10) is arranged in the middle of the inner side of the synthetic rubber layer (3), a rotating bearing (5) is fixedly connected to the inner portion of the valve plate base (4), a butterfly valve plate (6) is rotatably connected to the inner portion of the valve plate base (4) through the rotating bearing (5), and a valve plate transmission shaft (7) is fixedly connected, valve plate transmission shaft (7) are kept away from the one end of butterfly valve plate (6) and are passed valve gap (8) and rotate with valve gap (8) and be connected, valve plate transmission shaft (7) pass one end fixedly connected with axis of rotation (11) of valve gap (8), the one end that valve plate transmission shaft (7) passed valve gap (8) is rotated through axis of rotation (11) and is connected with valve handle (12), valve gap (8) top and valve handle (12) corresponding position fixedly connected with handle fixing base (13), the one end below both sides that valve plate transmission shaft (7) were kept away from in valve handle (12) all are provided with spacing piece (14), two fixed pinhole (15), two have all been seted up to the bottom of spacing piece (14) fixed pinhole (15) inside is provided with handle fixed pin (16).

2. The soft seal butterfly valve of claim 1, wherein: butterfly valve plate (6) include valve plate main part (601), carbide outer lane (602), valve plate axle (603) and seal ring (604), the outside edge fixedly connected with carbide outer lane (602) of valve plate main part (601), valve plate axle (603) pass the middle part of valve plate main part (601) and with valve plate main part (601) fixed connection, valve plate axle (603) all fixedly cup joints seal ring (604) at the both ends of valve plate main part (601).

3. A soft seal butterfly valve as claimed in claim 1 or claim 2, wherein: sealing rings (9) are arranged at the joints of the inner part of the butterfly valve body (1) and the two ends of the valve plate shaft (603).

4. A soft seal butterfly valve in accordance with claim 3, wherein: the insides of the two sealing rings (9) are fixedly sleeved with sealing ferrules (604) at corresponding positions respectively.

5. The soft seal butterfly valve of claim 1, wherein: the surfaces of the synthetic rubber layer (3) and the rubber convex ring (10) are both provided with polytetrafluoroethylene coatings.

6. The soft seal butterfly valve of claim 1, wherein: the valve handle (12) is fixedly clamped with the handle fixing seat (13) through the two limiting pieces (14).