CN215110547U

CN215110547U - Butterfly valve rubber valve seat

Info

Publication number: CN215110547U
Application number: CN202022936264.1U
Authority: CN
Inventors: 温阁
Original assignee: Tianjin Minghaoda Rubber Products Co ltd
Current assignee: Tianjin Minghaoda Rubber Products Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-12-10
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a butterfly valve rubber disk seat, including the cast iron valve body, be equipped with the rubber disk seat in the cast iron valve body, be connected through fixed establishment between rubber disk seat and the cast iron valve body inner wall, two dead levers of cast iron valve body inner wall fixedly connected with, dead lever lower extreme fixedly connected with connecting rod, connecting rod lower extreme fixedly connected with annular mounting panel, be equipped with a plurality of cavitys in the annular mounting panel, be equipped with in the cavity and support tight mechanism. The utility model has reasonable structure, enhances the stability of the rubber valve seat by arranging the fixing mechanism, and reduces the risk that the rubber valve seat deforms and falls off in a high-pressure environment; through setting up and supporting tight mechanism, utilize the gasbag inflation for the arc supports the pressure increase between board and the rubber valve seat, and the rubber valve seat is inseparabler with cast iron valve body laminating, has reduced the impurity of aquatic and has got into in the space between rubber valve seat and the cast iron valve body, has strengthened cast iron valve body's corrosion resistance.

Description

Butterfly valve rubber valve seat

Technical Field

The utility model relates to a rubber valve seat technical field especially relates to a butterfly valve rubber valve seat.

Background

The butterfly valve is widely used in various pipelines to adjust or cut off fluid in the pipelines, and the sealing pair plays a vital role in the valves. The valve seats commonly used in butterfly valves typically have a hard seal with a metal seat and a soft seal with a rubber seat.

The existing rubber valve seat has excellent sealing performance and can achieve zero leakage under the low-pressure working condition environment, but when the rubber valve seat is applied in the high-pressure environment, the rubber valve seat can deform and even fall off by impact of medium pressure in a pipeline, so that the application of a soft sealing butterfly valve in the high-pressure environment is limited.

SUMMERY OF THE UTILITY MODEL

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

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a butterfly valve rubber disk seat, includes the cast iron valve body, be equipped with the rubber disk seat in the cast iron valve body, be connected through fixed establishment between rubber disk seat and the cast iron valve body inner wall, two dead levers of cast iron valve body inner wall fixedly connected with, dead lever lower extreme fixedly connected with connecting rod, connecting rod lower extreme fixedly connected with annular mounting panel, be equipped with a plurality of cavitys in the annular mounting panel, a plurality of cavitys are circumference equidistant range, be equipped with in the cavity and be used for supporting tight mechanism with rubber disk seat and cast iron valve body.

Preferably, the cast iron valve body is made of nodular cast iron.

Preferably, the fixing mechanism comprises two device blocks fixedly connected with the side wall of the rubber valve seat, the inner wall of the cast iron valve body is provided with two slots matched with the device blocks, the side walls of the two device blocks are both provided with thread grooves, and the side wall of the cast iron valve body is provided with bolts matched with the thread grooves.

Preferably, the abutting mechanism comprises an air bag located in the cavity, a valve is arranged on the side wall of the air bag, an abutting rod is arranged in the cavity, and the tail end of the abutting rod extends out of the cavity and is fixedly connected with an arc abutting plate.

Preferably, the bladder is made of nylon.

Preferably, the side wall of the arc-shaped abutting plate is provided with a non-slip mat.

Compared with the prior art, the utility model, its beneficial effect does:

1. through setting up fixed establishment, strengthened rubber valve seat's stability, reduced in high pressure environment, the risk that rubber valve seat warp and drop.

2. Through setting up and supporting tight mechanism, utilize the gasbag inflation for the arc supports the pressure increase between board and the rubber valve seat, and the rubber valve seat is inseparabler with cast iron valve body laminating, has reduced the impurity of aquatic and has got into in the space between rubber valve seat and the cast iron valve body, has strengthened cast iron valve body's corrosion resistance.

Drawings

Fig. 1 is a schematic structural view of a rubber valve seat of a butterfly valve according to the present invention;

fig. 2 is a schematic top view of the rubber valve seat of the butterfly valve according to the present invention;

fig. 3 is an enlarged schematic view of a structure at a position a of the rubber valve seat of the butterfly valve according to the present invention;

fig. 4 is an enlarged schematic view of a B-position structure of the rubber valve seat of the butterfly valve provided by the present invention.

In the figure: the device comprises a cast iron valve body 1, a fixing rod 2, a connecting rod 3, a ring-shaped mounting plate 4, an air bag 5, a rubber valve seat 6, a bolt 7, a slot 8, a device block 9, a thread groove 10, a cavity 11, a supporting rod 12 and an arc-shaped supporting plate 13.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-4, a butterfly valve rubber valve seat, including cast iron valve body 1, cast iron valve body 1 is nodular cast iron, be equipped with rubber valve seat 6 in the cast iron valve body 1, be connected through fixed establishment between rubber valve seat 6 and the 1 inner wall of cast iron valve body, fixed establishment includes two device pieces 9 with 6 lateral walls fixed connection of rubber valve seat, 1 inner wall of cast iron valve body is equipped with two slots 8 with device piece 9 complex, two device piece 9 lateral walls all are equipped with thread groove 10, 1 lateral wall of cast iron valve body is equipped with bolt 7 with thread groove 10 complex, when needs install rubber valve seat 6, device piece 9 inserts in the slot 8, insert bolt 7 in the thread groove 10, tighten bolt 7, accomplish the fixed of rubber valve seat 6.

The inner wall of the cast iron valve body 1 is fixedly connected with two fixed rods 2, the lower ends of the fixed rods 2 are fixedly connected with connecting rods 3, the lower ends of the connecting rods 3 are fixedly connected with an annular mounting plate 4, a plurality of cavities 11 are arranged in the annular mounting plate 4, the plurality of cavities 11 are arranged at equal intervals in the circumferential direction, abutting mechanisms for abutting the rubber valve seats 6 against the cast iron valve body 1 are arranged in the cavities 11, the abutting mechanisms comprise air bags 5 positioned in the cavities 11, the air bags 5 are made of nylon, valves are arranged on the side walls of the air bags 5, abutting rods 12 are arranged in the cavities 11, the tail ends of the abutting rods 12 extend out of the cavities 11 and are fixedly connected with arc abutting plates 13, anti-skid pads are arranged on the side walls of the arc abutting plates 13 for inflating the air bags 5, the air bags 5 expand, the abutting rods 12 extrude the arc abutting plates 13, the arc abutting plates 13 extrude the rubber valve seats 6, and the rubber valve seats 6 are attached to the cast iron valve body 1 more tightly, the impurities in the water are reduced from entering the gap between the rubber valve seat 6 and the cast iron valve body 1, the corrosion resistance of the cast iron valve body 1 is enhanced, and the service life of the cast iron valve body 1 is prolonged.

The utility model discloses during the use, when needs are installed rubber valve seat 6, device piece 9 inserts slot 8, with bolt 7 insert thread groove 10 in, screws up bolt 7, accomplishes rubber valve seat 6's fixed. The air bag 5 is inflated, the air bag 5 expands, the air bag 5 extrudes the abutting rod 12, the abutting rod 12 extrudes the arc abutting plate 13, the arc abutting plate 13 extrudes the rubber valve seat 6, the rubber valve seat 6 is more tightly attached to the cast iron valve body 1, impurities in water are reduced from entering a gap between the rubber valve seat 6 and the cast iron valve body 1, the corrosion resistance of the cast iron valve body 1 is enhanced, and the service life of the cast iron valve body 1 is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a butterfly valve rubber disk seat, includes cast iron valve body (1), its characterized in that, be equipped with rubber disk seat (6) in cast iron valve body (1), be connected through fixed establishment between rubber disk seat (6) and cast iron valve body (1) inner wall, two dead levers (2) of cast iron valve body (1) inner wall fixedly connected with, dead lever (2) lower extreme fixedly connected with connecting rod (3), connecting rod (3) lower extreme fixedly connected with annular mounting panel (4), be equipped with a plurality of cavitys (11) in annular mounting panel (4), a plurality of cavitys (11) are circumference equidistant range, be equipped with in cavity (11) and be used for supporting tight mechanism with rubber disk seat (6) and cast iron valve body (1).

2. The rubber valve seat of butterfly valve according to claim 1, characterized in that the material of said cast iron valve body (1) is nodular cast iron.

3. A rubber valve seat of butterfly valve according to claim 1, characterized in that said fixing mechanism comprises two device blocks (9) fixedly connected with the side wall of rubber valve seat (6), the inner wall of said cast iron valve body (1) is provided with two slots (8) engaged with the device blocks (9), the side walls of both said device blocks (9) are provided with thread grooves (10), and the side wall of said cast iron valve body (1) is provided with bolts (7) engaged with the thread grooves (10).

4. The butterfly valve rubber valve seat according to claim 1, wherein the abutting mechanism comprises an air bag (5) located in a cavity (11), a valve is arranged on a side wall of the air bag (5), an abutting rod (12) is arranged in the cavity (11), and a curved abutting plate (13) is fixedly connected with the end of the abutting rod (12) extending out of the cavity (11).

5. A butterfly valve rubber seat according to claim 4, characterised in that said bladder (5) is made of nylon.

6. A rubber valve seat for a butterfly valve according to claim 4, characterized in that the side wall of the arc-shaped abutting plate (13) is provided with a non-slip pad.