CN212004309U

CN212004309U - Butt-clamp type metal sealing butterfly valve

Info

Publication number: CN212004309U
Application number: CN202020510574.4U
Authority: CN
Inventors: 巴玉泉; 闫永翰; 艾德权
Original assignee: Tianjin Valve Expo Machinery Co ltd
Current assignee: Tianjin Valve Expo Machinery Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-11-24
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a wafer formula metal seal butterfly valve, the water-cooled double-layer valve comprises a valve body, the side surface fixedly connected with flange of valve body, flange's front surface is provided with the connecting hole, the upper surface of valve body is provided with the valve gap, the upper surface of valve gap is provided with drive arrangement, drive arrangement's input fixedly connected with rotates the wheel, drive arrangement's output fixedly connected with axis of rotation, the first axle sleeve of side surface fixedly connected with of axis of rotation. The utility model discloses, be installed the elastic component in metal seal's bottom to make metal seal can be under pressure must the effect closely with the contact of butterfly plate, realize sealed effect, under encapsulated situation, with the screwhead top on metal seal circles, make it have minimum limit, not pushed away by the pressure is inside, form and leak, when wearing and tearing, the accessible promotes the sealing washer, makes its life-span reach the extension of certain degree.

Description

Butt-clamp type metal sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a wafer formula metal seal butterfly valve.

Background

The butterfly plate of the opposite-clamping butterfly valve is arranged in the diameter direction of a pipeline, the disc-shaped butterfly plate rotates around the axis in the cylindrical channel of the butterfly valve body, the rotation angle is 0-90 degrees, the flow adjusting effect can be achieved, when the butterfly plate rotates to 90 degrees, the valve reaches the maximum opening degree, the opposite-clamping butterfly valve is simple in structure, small in size and light in weight, only comprises a few parts, can be quickly opened and closed only by rotating 90 degrees, and is easy to operate, and meanwhile, the valve has good fluid control characteristics.

In the use of butterfly valve, when the butterfly plate was opened, need bear the salute of flow pressure, cause certain damage to the butterfly plate, and at metal seal's in-process, there is relative slip between the edge of butterfly plate and the metal seal, cause certain wearing and tearing, and the elasticity sealing washer, when pressure was too big, can make the elastic component withdrawal for sealed the leakage, thereby lead to the emergence of accident.

SUMMERY OF THE UTILITY MODEL

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

In order to achieve the above purpose, the utility model adopts the following technical scheme: the butt-clamping metal sealing butterfly valve comprises a valve body, a connecting flange is fixedly connected with the side surface of the valve body, the front surface of the connecting flange is provided with a connecting hole, the upper surface of the valve body is provided with a valve cover, the upper surface of the valve cover is provided with a driving device, the input end of the driving device is fixedly connected with a rotating wheel, the output end of the driving device is fixedly connected with a rotating shaft, the side surface of the rotating shaft is fixedly connected with a first shaft sleeve, a butterfly plate is fixedly connected to the side surface of the rotating shaft and positioned below the first shaft sleeve, a second shaft sleeve is fixedly connected to the side surface of the rotating shaft and positioned below the butterfly plate, the inside of valve body is provided with the mounting groove, the inside of mounting groove is provided with the spring, the one end fixedly connected with metal seal circle of mounting groove is kept away from to the spring, metal seal circle's below swing joint has the screw.

As a further description of the above technical solution:

and a convex ring is arranged on the front surface of the connecting flange and below the connecting hole, and the shape of the convex ring is arc-shaped.

As a further description of the above technical solution:

the outer surfaces of the first shaft sleeve and the second shaft sleeve are fixedly connected with the valve body, and one end, away from the driving device, of the rotating shaft extends to the inside of the valve body.

As a further description of the above technical solution:

the top of the metal sealing ring is divided into an arc line section and a straight line section, and the height of the straight line section is higher than that of the arc line section, so that a stop block is formed.

As a further description of the above technical solution:

the screw is connected with the valve body through threads, the head of the screw is hemispherical, and one end, far away from the metal sealing ring, of the screw extends to the outside of the valve body.

As a further description of the above technical solution:

the connection mode of the connecting flange is of a wafer type, the valve cover is connected with the valve body through the flange, and the position of the rotating shaft is located inside the valve cover.

The utility model discloses following beneficial effect has:

compared with the prior art, the oppositely-clamping type metal sealing butterfly valve is characterized in that the elastic piece is arranged at the bottom of the metal sealing ring, so that the metal sealing ring can be tightly contacted with the butterfly plate under the action of pressure to realize a sealing effect, the head of the screw is propped against the metal sealing ring in a sealing state to ensure that the metal sealing ring has the lowest limit and is not pushed inwards by the pressure to form leakage, and when the metal sealing ring is worn, the sealing ring can be pushed to prolong the service life to a certain extent.

Drawings

Fig. 1 is a schematic view of an overall structure of a wafer-type metal-sealed butterfly valve according to the present invention;

fig. 2 is a schematic view of an internal structure of a wafer-type metal-sealed butterfly valve according to the present invention;

fig. 3 is a top cross-sectional view of a wafer-type metal-sealed butterfly valve according to the present invention;

fig. 4 is an enlarged view of a partial structure of a wafer-type metal-sealed butterfly valve according to the present invention.

Illustration of the drawings:

1. a valve body; 2. a connecting flange; 3. connecting holes; 4. a valve cover; 5. a first bushing; 6. a drive device; 7. a rotating wheel; 8. a rotating shaft; 9. a butterfly plate; 10. a convex ring; 11. a second shaft sleeve; 12. mounting grooves; 13. a spring; 14. a metal seal ring; 15. and (4) screws.

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. 1-4, the present invention provides a wafer type metal sealing butterfly valve: the valve comprises a valve body 1, a connecting flange 2 is fixedly connected to the side surface of the valve body 1 and is connected with a pipeline to form a passage, a connecting hole 3 is formed in the front surface of the connecting flange 2 and used for fixing the position of the valve body 1 and the pipeline, a valve cover 4 is arranged on the upper surface of the valve body 1, a driving device 6 is arranged on the upper surface of the valve cover 4 and used for converting the rotation of a rotating wheel 7 into the rotation of a rotating shaft 8, the input end of the driving device 6 is fixedly connected with the rotating wheel 7 and is convenient to manually operate, the output end of the driving device 6 is fixedly connected with the rotating shaft 8, a first shaft sleeve 5 is fixedly connected to the side surface of the rotating shaft 8, a butterfly plate 9 is fixedly connected to the side surface of the rotating shaft 8 and is positioned below the first shaft sleeve 5, so that the butterfly plate 9 rotates, a, the inside of valve body 1 is provided with mounting groove 12, installation spring 13, and the inside of mounting groove 12 is provided with spring 13, and spring 13 makes metal seal 14 have elasticity, and the one end fixedly connected with metal seal 14 that spring 13 kept away from mounting groove 12 seals butterfly plate 9, and the below swing joint of metal seal 14 has screw 15, the lowest position of fixed metal seal 14.

The front surface of the connecting flange 2 and the lower part of the connecting hole 3 are provided with a convex ring 10, so that the connection is tight, the shape of the convex ring 10 is arc-shaped, the outer surfaces of the first shaft sleeve 5 and the second shaft sleeve 11 are fixedly connected with the valve body 1, the position of the rotating shaft 8 is fixed, one end of the rotating shaft 8, which is far away from the driving device 6, extends into the valve body 1, so that the butterfly plate 9 can rotate, the top of the metal sealing ring 14 is divided into an arc segment and a straight segment, the height of the arc segment is higher than that of the straight segment, a stop block is formed, the rotating direction can be controlled, the further sealing is realized, the screw 15 is connected with the valve body 1 through threads, the head of the screw 15 is hemispherical, the metal sealing ring 14 is prevented from being excessively damaged, one end of the screw 15, which is far away from the metal sealing ring 14, extends, the valve cover 4 is connected with the valve body 1 through a flange, the position of the rotating shaft 8 is located inside the valve cover 4, and the rotating shaft 8 is connected.

The working principle is as follows: connect the butterfly valve on the pipeline through flange 2, when using, rotatory turning wheel 7, utilize drive arrangement 6, make axis of rotation 8 rotate, thereby drive butterfly plate 9 and rotate, make the butterfly valve inside circulate, through the size of adjustment butterfly plate 9 angle, can adjust the flow through the butterfly valve, when closing, rotatory turning wheel 7, make butterfly plate 9 rotate through drive arrangement 6, butterfly plate 9 is connected with metal seal ring 14, make the butterfly valve close, under the encapsulated situation, with the head top of screw 15 on metal seal ring 14, make it have the minimum limit, do not pushed away by pressure, form the leakage, when wearing and tearing, accessible promotes screw 15, make metal seal ring 14 forward, make its life-span reach the extension of certain degree.

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 wafer formula metal seal butterfly valve, includes valve body (1), its characterized in that: the valve comprises a valve body (1), a connecting flange (2) is fixedly connected to the side surface of the valve body (1), a connecting hole (3) is formed in the front surface of the connecting flange (2), a valve cover (4) is arranged on the upper surface of the valve body (1), a driving device (6) is arranged on the upper surface of the valve cover (4), a rotating wheel (7) is fixedly connected to the input end of the driving device (6), a rotating shaft (8) is fixedly connected to the output end of the driving device (6), a first shaft sleeve (5) is fixedly connected to the side surface of the rotating shaft (8), a butterfly plate (9) is fixedly connected to the side surface of the rotating shaft (8) and is located below the first shaft sleeve (5), a second shaft sleeve (11) is fixedly connected to the side surface of the rotating shaft (8) and is located below the butterfly plate (9), a mounting groove (12) is formed in the valve body (1, one end of the spring (13) far away from the mounting groove (12) is fixedly connected with a metal sealing ring (14), and a screw (15) is movably connected below the metal sealing ring (14).

2. The wafer-type metal-sealed butterfly valve of claim 1, wherein: the front surface of the connecting flange (2) is provided with a convex ring (10) below the connecting hole (3), and the convex ring (10) is arc-shaped.

3. The wafer-type metal-sealed butterfly valve of claim 1, wherein: the outer surfaces of the first shaft sleeve (5) and the second shaft sleeve (11) are fixedly connected with the valve body (1), and one end, far away from the driving device (6), of the rotating shaft (8) extends to the inside of the valve body (1).

4. The wafer-type metal-sealed butterfly valve of claim 1, wherein: the top of the metal sealing ring (14) is divided into an arc line section and a straight line section, and the height of the straight line section is higher than that of the arc line section, so that a stop block is formed.

5. The wafer-type metal-sealed butterfly valve of claim 1, wherein: the screw (15) is connected with the valve body (1) through threads, the head of the screw (15) is hemispherical, and one end, far away from the metal sealing ring (14), of the screw (15) extends to the outside of the valve body (1).

6. The wafer-type metal-sealed butterfly valve of claim 1, wherein: the connecting flange (2) is in a butt-clamp type, the valve cover (4) is connected with the valve body (1) through the flange, and the rotating shaft (8) is located inside the valve cover (4).