CN211449694U - Multi-stage sealing butterfly valve - Google Patents

Abstract

The utility model provides a multistage sealed butterfly valve, including the butterfly valve body, the equal fixedly connected with mounting panel in butterfly valve body both ends, the first sealing washer of butterfly valve body inner wall fixedly connected with, first sealing washer both ends and two mounting panels are located same perpendicular, the inside rotation of butterfly valve body is connected with the butterfly plate, the butterfly plate outside is equipped with the recess, be equipped with the second sealing washer in the recess, a plurality of fixed blocks of recess inner wall fixedly connected with, a plurality of fixed blocks all run through the second sealing washer, all be equipped with a plurality of mounting holes on two mounting panels, all be equipped with the telescoping device on the first sealing washer both ends tip outlying mounting panel, the utility model discloses a multiple seal makes the butterfly valve body have better leakproofness.

Description

Multi-stage sealing butterfly valve

Technical Field

The utility model relates to a multistage sealed butterfly valve belongs to valve technical field.

Background

The butterfly valve is also called as flap valve, is a regulating valve with simple structure, and can be used for controlling the flow of various 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 sealing ring of present butterfly valve inner wall is extruded through the butterfly plate usually and is produced deformation, reaches sealed effect in proper order, but single seals through a sealing ring, and the time is of a specified duration, makes the leakproofness variation easily, also appears the phenomenon of leaking easily at the kneck.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage sealed butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage sealed butterfly valve, includes the butterfly valve body, the equal fixedly connected with mounting panel in butterfly valve body both ends, the first sealing washer of butterfly valve body inner wall fixedly connected with, first sealing washer both ends and two mounting panels are located same perpendicular, the inside rotation of butterfly valve body is connected with the butterfly plate, the butterfly plate outside is equipped with the recess, be equipped with the second sealing washer in the recess, a plurality of fixed blocks of recess inner wall fixedly connected with, it is a plurality of the fixed block all runs through the second sealing washer, two all be equipped with a plurality of mounting holes on the mounting panel, all be equipped with the telescoping device on the first sealing washer both ends tip outlying mounting panel.

Preferably, two the telescoping device all includes annular, spring, stripper plate and third sealing washer, two the annular sets up respectively in two mounting panels outsides, two the equal fixedly connected with spring of annular inner wall, two the equal fixedly connected with stripper plate of spring one end, two the equal fixedly connected with third sealing washer in stripper plate one side.

Preferably, two the annular is located first sealing washer both ends tip periphery respectively, two stripper plate and two third sealing washers all stretch out corresponding annular notch.

Preferably, the end parts of the fixing blocks are aligned with the outer side of the second sealing ring.

Preferably, two the stripper plate is cyclic annular, and two the stripper plate area all is less than two annular latus rectum areas.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be equipped with the recess in the butterfly plate outside, fixedly connected with second sealing washer and a plurality of fixed block in the recess, and a plurality of fixed blocks all run through the second sealing washer, when the butterfly plate closed, the butterfly plate of recess both sides can extrude first sealing washer, make first sealing washer produce deformation to seal, a plurality of fixed blocks also can make first sealing washer produce deformation simultaneously, the second sealing washer of deuterogamying, multiple deformation can strengthen the leakproofness, prevent the phenomenon of leaking.

2. The utility model discloses all be equipped with the telescoping device in two mounting panel outsides, two telescoping devices all include the annular, a spring, stripper plate and third sealing washer, when connecting the water pipe, the water pipe installation end can extrude third sealing washer and stripper plate, make the spring shrink, stripper plate and third sealing washer shrink into in the annular, third sealing washer and annular inner wall in close contact with, strong restoring force through the spring, make third sealing washer and water pipe installation end in close contact with, thereby strengthen the leakproofness, fix through a plurality of mounting holes at last, can further strengthen the leakproofness of kneck, prevent the phenomenon of leaking.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic structural view of a butterfly plate of the present invention;

fig. 4 is a schematic structural view of the telescopic device of the present invention.

In the figure: 1. a butterfly valve body; 2. mounting a plate; 3. a second seal ring; 4. a fixed block; 5. a groove; 6. a butterfly plate; 7. a first seal ring; 8. mounting holes; 9. a telescoping device; 91. a ring groove; 92. a third seal ring; 93. a pressing plate; 94. a spring.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a multi-stage sealing butterfly valve comprises a butterfly valve body 1, wherein mounting plates 2 are fixedly connected to two ends of the butterfly valve body 1, a first sealing ring 7 is fixedly connected to the inner wall of the butterfly valve body 1, two ends of the first sealing ring 7 and the two mounting plates 2 are positioned on the same vertical plane, a butterfly plate 6 is rotatably connected to the inner part of the butterfly valve body 1, a groove 5 is arranged on the outer side of the butterfly plate 6, a second sealing ring 3 is arranged in the groove 5, a plurality of fixing blocks 4 are fixedly connected to the inner wall of the groove 5, the fixing blocks 4 penetrate through the second sealing ring 3, a plurality of mounting holes 8 are formed in the two mounting plates 2, telescopic devices 9 are arranged on the mounting plates 2 on the peripheries of the end parts of the two ends of the first sealing ring 7, when the butterfly plate 6 is closed, the butterfly plates 6 on two sides of the groove 5 can extrude the first sealing ring 7 to enable the first sealing, and the second sealing ring 3 is matched, the sealing performance can be enhanced due to multiple deformation, the water leakage phenomenon can be prevented, and the water leakage phenomenon at the joint can be further prevented through the two telescopic devices 9.

The end parts of a plurality of fixing blocks 4 are aligned with the outer side of the second sealing ring 3, when the fixing blocks 4 extrude the first sealing ring 7, the second sealing ring 3 can be matched with the first sealing ring 7 to enhance the sealing performance, two telescopic devices 9 comprise annular grooves 91, springs 94, extrusion plates 93 and third sealing rings 92, the two annular grooves 91 are respectively arranged at the outer sides of the two mounting plates 2, the inner walls of the two annular grooves 91 are fixedly connected with the springs 94, one ends of the two springs 94 are fixedly connected with the extrusion plates 93, one sides of the two extrusion plates 93 are fixedly connected with the third sealing rings 92, when a water pipe is connected, the water pipe mounting end extrudes the third sealing rings 92 and the extrusion plates 93 to enable the springs 94 to contract, the extrusion plates 93 and the third sealing rings 92 contract into the annular grooves 91, the third sealing rings 9392 are tightly contacted with the inner walls of the annular grooves 91, and the strong restoring force of the springs 94, make third sealing washer 92 and water pipe installation end in close contact with, thereby strengthen the leakproofness, fix through a plurality of mounting holes 8 at last, can further strengthen the leakproofness of kneck, prevent the phenomenon of leaking, two stripper plates 93 are cyclic annular, and two stripper plate 93 areas all are less than two annular 91 latus rectum areas, make stripper plate 93 can normally contract in the annular 91 of advancing, two annular 91 are located first sealing washer 7 both ends tip respectively peripherally, two stripper plates 93 and two third sealing washers 92 all stretch out and correspond annular 91 notch, through first sealing washer 7 and the double sealing of third sealing washer 92, better prevent that the phenomenon of leaking from appearing at the kneck.

Specifically, when the utility model is used, when a water pipe is connected, the water pipe mounting end can extrude the third sealing ring 92 and the extrusion plate 93, so that the spring 94 contracts, the extrusion plate 93 and the third sealing ring 92 contract into the annular groove 91, the third sealing ring 92 is in close contact with the inner wall of the annular groove 91, the third sealing ring 92 is in close contact with the water pipe mounting end through the strong restoring force of the spring 94, so as to enhance the sealing performance, and finally, the sealing performance at the interface can be further enhanced by fixing through the plurality of mounting holes 8, so as to prevent the water leakage phenomenon, when the butterfly plates 6 are closed, the butterfly plates 6 at the two sides of the groove 5 can extrude the first sealing ring 7, so that the first sealing ring 7 is deformed, so as to carry out sealing, meanwhile, the first sealing ring 7 can also be deformed by the plurality of fixing blocks 4, and then the second sealing ring 3 is matched, so that the sealing performance can be enhanced, preventing water leakage. The utility model discloses a multiple seal makes butterfly valve body 1 have better leakproofness, and the result of use is better.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A multi-stage sealing butterfly valve comprises a butterfly valve body (1) and is characterized in that both ends of the butterfly valve body (1) are fixedly connected with mounting plates (2), the inner wall of the butterfly valve body (1) is fixedly connected with a first sealing ring (7), two ends of the first sealing ring (7) and the two mounting plates (2) are positioned on the same vertical plane, a butterfly plate (6) is rotatably connected in the butterfly valve body (1), a groove (5) is arranged on the outer side of the butterfly plate (6), a second sealing ring (3) is arranged in the groove (5), a plurality of fixing blocks (4) are fixedly connected with the inner wall of the groove (5), the plurality of fixing blocks (4) penetrate through the second sealing ring (3), a plurality of mounting holes (8) are formed in the two mounting plates (2), and telescopic devices (9) are arranged on the mounting plates (2) on the peripheries of the end parts of the two ends of the first sealing ring (7).

2. The multi-stage sealing butterfly valve of claim 1, wherein: two telescoping device (9) all includes annular (91), spring (94), stripper plate (93) and third sealing washer (92), two annular (91) sets up respectively in two mounting panel (2) outsides, two equal fixedly connected with spring (94), two in annular (91) inner wall the equal fixedly connected with stripper plate (93) of spring (94) one end, two equal fixedly connected with third sealing washer (92) in stripper plate (93) one side.

3. The multi-stage sealing butterfly valve of claim 2, wherein: two annular (91) are located first sealing washer (7) both ends tip periphery respectively, two stripper plate (93) and two third sealing washer (92) all stretch out corresponding annular (91) notch.

4. The multi-stage sealing butterfly valve of claim 1, wherein: and the end parts of the fixing blocks (4) are aligned with the outer side of the second sealing ring (3).

5. The multi-stage sealing butterfly valve of claim 2, wherein: two stripper plate (93) are cyclic annular, and two stripper plate (93) area all is less than two annular (91) latus rectum areas.

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