CN215980864U

CN215980864U - Sealing ring of metal butterfly valve

Info

Publication number: CN215980864U
Application number: CN202121471219.1U
Authority: CN
Inventors: 佟泽
Original assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Current assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-03-08
Anticipated expiration: 2031-06-30

Abstract

The embodiment of the application discloses sealing washer of metal butterfly valve, including butterfly valve body, sealing washer body, the inside at the butterfly valve body is installed to the sealing washer body, the bottom and the wear-resisting axle sleeve of top fixedly connected with of sealing washer body, the protruding circle of middle part fixedly connected with of this internal lane face of sealing washer, the lateral surface fixedly connected with seal side ring of sealing washer body. This sealing washer of metal butterfly valve, top and bottom through at the sealing washer body set up wear-resisting axle sleeve, PEEK has high temperature resistant, excellent properties such as self-lubricating and high mechanical strength special engineering plastics, can reduce and the valve shaft between wearing and tearing, the life of sealing washer body has been improved, lateral surface through at the sealing washer body sets up sealed side ring, when being connected butterfly valve body and pipeline, the sealed side ring of sealing washer body lateral surface can form interference fit under butterfly valve body and pipe connection's extrusion, sealed effect when improving butterfly valve body and pipe connection.

Description

Sealing ring of metal butterfly valve

Technical Field

The application relates to the technical field of metal butterfly valves, in particular to a sealing ring of a metal butterfly valve.

Background

A butterfly valve, also called 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 is opened and closed by rotating around a valve shaft with a closing member (a valve clack or a butterfly plate) being a disk, and mainly plays the roles of cutting off and throttling on a pipeline. 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 sealing ring of the butterfly valve is easy to slide in the using process. Meanwhile, the sealing ring is tightly attached to the shaft rod, so that the shaft rod can be abraded with a connecting part of the sealing ring and the shaft rod in the rotating process, a medium can be leaked from the part, connected with the shaft rod, of the sealing ring in the long term, production accidents are caused, and meanwhile, the existing sealing ring is difficult to detach.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides a seal ring of a metal butterfly valve to improve the above problems.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a sealing washer of metal butterfly valve, includes butterfly valve body, sealing washer body, the inside at the butterfly valve body is installed to the sealing washer body, the bottom and the wear-resisting axle sleeve of top fixedly connected with of sealing washer body, the protruding circle of middle part fixedly connected with of this internal circle face of sealing washer, the lateral surface fixedly connected with of sealing washer body seals the side ring, the bottom fixedly connected with brace of sealing washer body lateral surface, the marginal fixedly connected with ring of this external circle face of sealing washer is buckled.

Optionally, a valve shaft is vertically movably sleeved in the middle of the butterfly valve body, the valve shaft is movably sleeved inside the wear-resistant shaft sleeve, and a valve plate is fixedly mounted outside the valve shaft.

Optionally, the wear-resisting axle sleeve adopts PEEK engineering plastics preparation to form, the height and the protruding circle of wear-resisting axle sleeve flush, protruding circle and valve plate laminate mutually.

Optionally, the cross section of the sealing side ring is semicircular.

Optionally, the shape of brace is the shape of falling L, the brace is inlayed in the inside of butterfly valve body and is flushed with the sealing washer body.

Optionally, the buckles are symmetrically distributed on two sides of the outer ring surface of the sealing ring body, the inner sides of the buckles are L-shaped and are bent inwards, and the buckles are clamped on the inner ring surface of the butterfly valve body.

The application provides a pair of sealing washer of metal butterfly valve possesses following beneficial effect:

1. this sealing washer of metal butterfly valve, top and bottom through at the sealing washer body set up wear-resisting axle sleeve, PEEK has high temperature resistant, excellent properties such as self-lubricating and high mechanical strength special engineering plastics, can reduce and the valve shaft between wearing and tearing, the life of sealing washer body has been improved, lateral surface through at the sealing washer body sets up sealed side ring, when being connected butterfly valve body and pipeline, the sealed side ring of sealing washer body lateral surface can form interference fit under butterfly valve body and pipe connection's extrusion, sealed effect when improving butterfly valve body and pipe connection.

2. This sealing washer of metal butterfly valve, through the side brace at the sealing washer body, when needs are changed the sealing washer body, can stimulate the brace and pull open the knot outwards, conveniently make the knot separate with the butterfly valve body, be convenient for dismantle the sealing washer body, through setting up the knot at the outer lane face of sealing washer body, the knot can be with the firm knot of the knot of sealing washer body on the butterfly valve body, the fastness of sealing washer body and butterfly valve body connection has been improved, prevent to take place to deflect between sealing washer body and the butterfly valve body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view illustrating a seal ring of a metal butterfly valve according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram showing a half-section of a seal ring of a metal butterfly valve according to an embodiment of the present disclosure;

fig. 3 is a schematic view illustrating a seal ring body of a metal butterfly valve according to an embodiment of the present disclosure;

fig. 4 shows an enlarged view of a seal ring of a metal butterfly valve, which is provided by the embodiment of the application and is shown at a in fig. 2.

In the figure: 1. a butterfly valve body; 2. a seal ring body; 3. a valve shaft; 4. a valve plate; 5. a wear-resistant shaft sleeve; 6. a raised ring; 7. a sealing side ring; 8. bracing; 9. and (5) buckling.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 4, the present invention provides a technical solution: a seal ring of a metal butterfly valve comprises a butterfly valve body 1 and a seal ring body 2, wherein the seal ring body 2 is arranged inside the butterfly valve body 1, a valve shaft 3 is vertically and movably sleeved at the middle part of the butterfly valve body 1, the valve shaft 3 is movably sleeved inside a wear-resistant shaft sleeve 5, a valve plate 4 is fixedly arranged outside the valve shaft 3, the bottom and the top of the seal ring body 2 are fixedly connected with the wear-resistant shaft sleeve 5, the wear-resistant shaft sleeve 5 is arranged at the top and the bottom of the seal ring body 2, PEEK is special engineering plastic with excellent performances such as high temperature resistance, self-lubrication and high mechanical strength, the abrasion between the PEEK and the valve shaft 3 can be reduced, the service life of the seal ring body 2 is prolonged, a raised ring 6 is fixedly connected at the middle part of the inner ring surface of the seal ring body 2, the wear-resistant shaft sleeve 5 is made of PEEK engineering plastic, the height of the wear-resistant shaft sleeve 5 is flush with the raised ring 6, and the raised ring 6 are attached to the valve plate 4, the sealing side ring 7 is fixedly connected to the outer side surface of the sealing ring body 2, the sealing side ring 7 is arranged on the outer side surface of the sealing ring body 2, when the butterfly valve body 1 is connected with a pipeline, the sealing side ring 7 on the outer side surface of the sealing ring body 2 can form interference fit under the extrusion of the connection of the butterfly valve body 1 and the pipeline, the sealing effect when the butterfly valve body 1 is connected with the pipeline is improved, the cross section of the sealing side ring 7 is semicircular, the bottom of the outer side surface of the sealing ring body 2 is fixedly connected with a brace 8, the brace 8 is inverted L-shaped, the brace 8 is embedded in the butterfly valve body 1 and is flush with the sealing ring body 2, when the sealing ring body 2 needs to be replaced, the brace 8 can be pulled to pull the ring buckle 9 outwards, the ring buckle 9 is conveniently separated from the butterfly valve body 1, and the sealing ring body 2 is convenient to detach, the edge fixedly connected with latch closure 9 of 2 outer lane faces of sealing washer body, latch closure 9 symmetric distribution is in the both sides of 2 outer lane faces of sealing washer body, the inboard of latch closure 9 is L shape internal bending, set up latch closure 9 through the outer lane face at sealing washer body 2, latch closure 9 can be with the firm knot of 2 on butterfly valve body 1 of sealing washer body, the fastness of being connected of sealing washer body 2 and butterfly valve body 1 has been improved, prevent to take place to deflect between sealing washer body 2 and the butterfly valve body 1, latch closure 9 block is on the inner lane face of butterfly valve body 1.

To sum up, the application provides a sealing washer of metal butterfly valve, when using, replace taking place the friction between sealing washer body 2 and the valve shaft 3 through wear-resisting axle sleeve 5, prevent that sealing washer body 2 from taking place the friction and damaging, sealed side ring 7 can form interference fit under butterfly valve body 1 and the extrusion of pipe connection, sealed effect when improving butterfly valve body 1 and pipe connection, rethread ring is detained 9 and is detained the firm knot of sealing washer body 2 on butterfly valve body 1, the fastness of being connected of sealing washer body 2 and butterfly valve body 1 has been improved, can.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a sealing washer of metal butterfly valve, includes butterfly valve body (1), sealing washer body (2), its characterized in that: the sealing ring is characterized in that the sealing ring body (2) is arranged inside the butterfly valve body (1), the bottom and the top of the sealing ring body (2) are fixedly connected with a wear-resistant shaft sleeve (5), the middle of the inner ring surface of the sealing ring body (2) is fixedly connected with a raised ring (6), the outer side surface of the sealing ring body (2) is fixedly connected with a sealing side ring (7), the bottom of the outer side surface of the sealing ring body (2) is fixedly connected with a brace (8), and the edge of the outer ring surface of the sealing ring body (2) is fixedly connected with a ring buckle (9).

2. The seal ring of a metal butterfly valve according to claim 1, wherein: the valve shaft (3) is vertically movably sleeved at the middle part of the butterfly valve body (1), the valve shaft (3) is movably sleeved inside the wear-resistant shaft sleeve (5), and the valve plate (4) is fixedly mounted outside the valve shaft (3).

3. The seal ring of a metal butterfly valve according to claim 2, characterized in that: wear-resisting axle sleeve (5) adopt PEEK engineering plastics to make and form, the height and protruding circle (6) of wear-resisting axle sleeve (5) flush, laminating mutually with valve plate (4) protruding circle (6).

4. The seal ring of a metal butterfly valve according to claim 1, wherein: the cross section of the sealing side ring (7) is semicircular.

5. The seal ring of a metal butterfly valve according to claim 1, wherein: the shape of brace (8) is the shape of falling L, brace (8) are inlayed in butterfly valve body (1) inside and flush with sealing washer body (2).

6. The seal ring of a metal butterfly valve according to claim 1, wherein: the ring buckles (9) are symmetrically distributed on two sides of the outer ring surface of the sealing ring body (2), the inner sides of the ring buckles (9) are L-shaped inner bends, and the ring buckles (9) are clamped on the inner ring surface of the butterfly valve body (1).