CN211398596U

CN211398596U - Impact-resistant double-linkage double-open butterfly valve

Info

Publication number: CN211398596U
Application number: CN201921738422.3U
Authority: CN
Inventors: 田江
Original assignee: Jiangsu Hida Marine Valve Co ltd
Current assignee: Jiangsu Hida Marine Valve Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-09-01
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a two linkage two butterfly valves that open that shock resistance relates to butterfly valve technical field. The utility model comprises a valve body, two valve shafts vertically penetrate through the valve body, the two valve shafts are both fixedly sleeved with valve plates, the inner side surface of the valve body is provided with a ceramic gasket matched with the valve plates, the desired surfaces of the two valve plates are both fixedly provided with rotary seats, and the two rotary seats are rotationally connected through a connecting rod; a rotating rod penetrates through the upper wall of the valve body between the two valve shafts, and the bottom end of the rotating rod is fixedly connected with a deflector rod; a stop block matched with the deflector rod is fixed on the side surface of the connecting rod. The utility model discloses a set up two valve plates in the valve body to rotate between with two valve plates through the connecting rod and connect, make when closing, another valve plate also can provide the support to it when a valve plate receives the impact, can open in the syntropy simultaneously when two valve plates of open-type, improved the resistance to compression of butterfly valve, the ability of shocking resistance, and sealing performance, increased the security of using the butterfly valve in the production.

Description

Impact-resistant double-linkage double-open butterfly valve

Technical Field

The utility model belongs to the technical field of the butterfly valve, especially, relate to dual linkage two butterfly valves that open that shocks resistance.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, 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 existing butterfly valve has a single structure and is used for a long time, and internal parts of the butterfly valve are easy to leak due to abrasion, so that the safety of the single butterfly valve is poor; when the liquid flow rate is great, often produce great impact to and under the great condition of pressure, the inside valve plate of butterfly valve produces great deformation easily and damages, takes place to leak, seriously influences the safety of production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two linkage two butterfly valves that open shocks resistance opens simultaneously through providing a pair of valve plates to the butterfly valve that supports each other between two valve plates has solved current single butterfly valve security relatively poor, and easy big deformation's problem takes place because great impact and pressure.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a shock-resistant double-linkage double-open butterfly valve, which comprises a valve body, wherein two valve shafts vertically penetrate through the valve body, the two valve shafts are fixedly sleeved with valve plates, the inner side surface of the valve body is provided with a ceramic gasket matched with the valve plates, the opposite surfaces of the two valve plates are respectively fixed with a rotary seat, and the two opposite rotary seats are rotationally connected through a connecting rod; a rotating rod penetrates through the upper wall of the valve body between the two valve shafts, and the bottom end of the rotating rod is fixedly connected with a deflector rod; a stop block matched with the deflector rod is fixed on the side surface of the connecting rod; a sealing assembly penetrated by the rotating rod is arranged on the valve body and between the two valve shafts, and a pressure plate is fixed at the top of the sealing assembly through a screw; the top end of the rotating rod is fixed with a rotating plate, a locking guide rod penetrates through the rotating plate, and the bottom end of the locking guide rod penetrates through the pressing plate.

Furthermore, the sealing assembly comprises a boss, a sealing gasket is arranged between the top of the boss and the bottom of the pressure plate, and a sealing sleeve is arranged between the outer surface of the rotating rod and the valve body and between the outer surface of the rotating rod and the boss.

Furthermore, the stop blocks on the two connecting rods are respectively distributed at the positions of two sides of the shifting rod.

Furthermore, a through hole matched with the locking guide rod is formed in the pressing plate.

The utility model discloses following beneficial effect has:

the utility model discloses a set up two valve plates in the valve body to rotate between with two valve plates through the connecting rod and connect, make when closing, another valve plate also can provide the support to it when a valve plate receives the impact, can open in the syntropy simultaneously when two valve plates of open-type, improved the resistance to compression of butterfly valve, the ability of shocking resistance, and sealing performance, increased the security of using the butterfly valve in the production.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic structural view of a double-linkage double-open butterfly valve of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic cross-sectional view taken along line B-B in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1-valve body, 2-valve shaft, 3-valve plate, 4-ceramic washer, 5-rotary seat, 6-connecting rod, 7-rotary rod, 8-deflector rod, 9-stop block, 10-pressing plate, 11-rotary plate and 12-locking guide rod.

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

Referring to fig. 1-3, the utility model discloses a two linkage two butterfly valves that open resist shock, including valve body 1, two valve shafts 2 have vertically been run through on the valve body 1, are provided with seal assembly between two valve shafts 2 and the valve body 1 equally, and the valve plate 3 is all set fixedly on two valve shafts 2, is provided with the ceramic packing ring 4 with valve plate 3 matched with on the medial surface of valve body 1, and above-mentioned structural feature constitutes the basic framework of butterfly valve.

The desired opposite surfaces of the two valve plates 3 are respectively fixed with a rotary seat 5, and the two opposite rotary seats 5 are rotationally connected through a connecting rod 6.

A rotating rod 7 penetrates through the upper wall of the valve body 1 between the two valve shafts 2, and a shifting lever 8 is fixedly connected to the bottom end of the rotating rod 7.

The side of the connecting rod 6 is fixed with a stop dog 9 matched with the shift lever 8, and the stop dogs 9 on the two connecting rods 6 are respectively distributed at the positions of two sides of the shift lever 8, so that the valve plate 3 can be conveniently opened when needed.

A sealing assembly penetrated by the rotating rod 7 is arranged on the valve body 1 and between the two valve shafts 2, a pressing plate 10 is fixed at the top of the sealing assembly through a screw, and a through hole matched with the locking guide rod 12 is formed in the pressing plate 10.

The top end of the rotating rod 7 is fixed with a rotating plate 11, a locking guide rod 12 penetrates through the rotating plate 11, the bottom end of the locking guide rod 12 penetrates through a pressing plate 10, and the pressing plate 10, the rotating plate 11 and the locking guide rod 12 are combined for use to further lock the butterfly valve when the butterfly valve does not need to be opened.

The sealing assembly comprises a boss, a sealing gasket is arranged between the top of the boss and the bottom of the pressure plate 10, and a sealing sleeve is arranged between the outer surface of the rotating rod 7 and the valve body 1 and the boss, so that the sealing effect is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Two linkage two butterfly valves that open that shock resistance, including valve body (1), the vertical through has two valve shafts (2), two on valve body (1) all overlap fixedly on valve shaft (2) and be equipped with valve plate (3), be provided with on the medial surface of valve body (1) with valve plate (3) matched with ceramic packing ring (4), its characterized in that:

rotary bases (5) are fixed on the opposite surfaces of the two valve plates (3), and the two opposite rotary bases (5) are rotatably connected through a connecting rod (6);

a rotating rod (7) penetrates through the upper wall of the valve body (1) between the two valve shafts (2), and a shifting lever (8) is fixedly connected to the bottom end of the rotating rod (7);

a stop block (9) matched with the deflector rod (8) is fixed on the side surface of the connecting rod (6);

a sealing assembly penetrated by a rotating rod (7) is arranged on the valve body (1) and between the two valve shafts (2), and a pressure plate (10) is fixed at the top of the sealing assembly through a screw;

the top end of the rotating rod (7) is fixed with a rotating plate (11), a locking guide rod (12) penetrates through the rotating plate (11), and the bottom end of the locking guide rod (12) penetrates through the pressing plate (10).

2. The anti-impact double-linkage double-opening butterfly valve according to claim 1, wherein the sealing assembly comprises a boss, a sealing gasket is arranged between the top of the boss and the bottom of the pressure plate (10), and a sealing sleeve is arranged between the outer surface of the rotating rod (7) and the valve body (1) and the boss.

3. The shock-resistant double-linkage double-open butterfly valve according to claim 1, characterized in that the stoppers (9) on the two connecting rods (6) are respectively distributed at the positions on both sides of the shift lever (8).

4. The shock-resistant double-linkage double-opening butterfly valve according to claim 1, wherein the pressure plate (10) is provided with a through hole matched with the locking guide rod (12).