CN219299953U

CN219299953U - Self-sealing valve core and pneumatic butterfly valve

Info

Publication number: CN219299953U
Application number: CN202320044903.4U
Authority: CN
Inventors: 于长永; 张洪旺; 李孝辉; 于学路; 于学阔
Original assignee: Tianjin City Yongtuo Machinery Co ltd
Current assignee: Tianjin City Yongtuo Machinery Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-07-04
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to the technical field of butterfly valve sealing, in particular to a self-sealing valve core and a pneumatic butterfly valve, which comprise: the valve body is internally provided with a groove, an elastic ball and a sealing ring are arranged in the groove, the surface of the base is provided with a placing groove, a filter frame is arranged in the placing groove, and the outer ring surface of the butterfly plate is provided with a rubber ring; the beneficial effects are as follows: the utility model provides a pair of self sealss case and pneumatic butterfly valve, fix the elastic ball in the recess during the use, then set up the sealing washer in the recess, the outer anchor ring of sealing washer is provided with the antifriction plate, be provided with the rubber circle in the butterfly plate side, the setting of antifriction plate can improve the abrasion resistance when butterfly plate and sealing washer wearing and tearing when rotating the butterfly plate like this, the leakproofness of butterfly plate and valve body inner wall can be kept in the setting of elastic ball, the general when rotating the butterfly plate of having avoided like this, can lead to the inner wall friction of sealing washer and butterfly plate, thereby lead to the sealing washer to take place the wearing and tearing, can produce the clearance between sealing washer and the butterfly plate, the condition of weeping leads to appearing.

Description

Self-sealing valve core and pneumatic butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valve sealing, in particular to a self-sealing valve core and a pneumatic butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.

In the prior art, the butterfly valve is closed and sealed mainly by adopting the sealing ring to be abutted against the inner wall of the valve seat.

However, when the butterfly plate is rotated, the sealing ring is rubbed with the inner wall of the butterfly plate, so that the sealing ring is abraded, a gap is formed between the sealing ring and the butterfly plate, the tightness is weakened, and the leakage is caused.

Disclosure of Invention

The utility model aims to provide a self-sealing valve core and a pneumatic butterfly valve, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a self-sealing valve cartridge, the self-sealing valve cartridge comprising: the valve body is provided with a control device on the surface, a valve rod is arranged in the valve body, a groove is formed in the inner wall of the valve body, an elastic ball is arranged in the groove, and a sealing ring is arranged on the side face of the elastic ball;

the surface of the base is provided with a placing groove, and a filter frame is arranged in the placing groove;

the butterfly plate, the butterfly plate side is provided with the locating plate, and the butterfly plate outer loop face is provided with the rubber circle.

Preferably, the outer ring surface of the sealing ring is fixedly connected to the side surface of the elastic ball, and the inner ring surface of the sealing ring is provided with a wear-resisting plate.

Preferably, the rubber ring is of an annular plate-shaped structure, and the inner annular surface of the rubber ring is fixedly connected to the side surface of the butterfly plate.

Preferably, a filter screen is arranged in the filter frame, and the filter frame is fixed in the placing groove by bolts.

Preferably, the base is of an annular plate-shaped structure, and the outer annular surface of the base is fixedly connected to the inner side wall of the valve body.

Preferably, the elastic balls are provided with a plurality of groups, and the plurality of groups of elastic balls are regularly and circularly arranged in the grooves.

Preferably, the positioning plates are provided with two groups, and the two groups of positioning plates are linearly arranged on the side surfaces of the butterfly plates.

A pneumatic butterfly valve comprises the self-sealing valve core.

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

the utility model provides a pair of self sealss case and pneumatic butterfly valve, fix the elastic ball in the recess during the use, then set up the sealing washer in the recess, the outer anchor ring of sealing washer is provided with the antifriction plate, be provided with the rubber circle in the butterfly plate side, the setting of antifriction plate can improve the abrasion resistance when butterfly plate and sealing washer wearing and tearing when rotating the butterfly plate like this, the leakproofness of butterfly plate and valve body inner wall can be kept in the setting of elastic ball, avoided generally when rotating the butterfly plate like this, can lead to the inner wall friction of sealing washer and butterfly plate, thereby lead to the sealing washer to take place the wearing and tearing, can produce the clearance between sealing washer and the butterfly plate, cause the leakproofness to weaken, the condition that leads to the weeping appears.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1;

FIG. 3 is a partial cross-sectional view of the structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure at B in fig. 3.

In the figure: 1. a valve body; 2. a control device; 3. a valve stem; 4. a groove; 5. an elastic ball; 6. a seal ring; 7. a base; 8. a placement groove; 9. a filter frame; 10. a butterfly plate; 11. a positioning plate; 12. a rubber ring; 13. a wear plate; 14. a filter screen; 15. and (5) a bolt.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Example 1

Referring to fig. 1 to 4, the present utility model provides a technical solution: a self-sealing valve cartridge, the self-sealing valve cartridge comprising: the valve comprises a valve body 1, wherein a control device 2 is arranged on the surface of the valve body 1, a valve rod 3 is arranged in the valve body 1, a groove 4 is formed in the inner wall of the valve body 1, an elastic ball 5 is arranged in the groove 4, and a sealing ring 6 is arranged on the side surface of the elastic ball 5; the base 7, the surface of the base 7 is provided with a placing groove 8, and a filter frame 9 is arranged in the placing groove 8; the butterfly plate 10, the side of the butterfly plate 10 is provided with a positioning plate 11, and the outer ring surface of the butterfly plate 10 is provided with a rubber ring 12;

during use, the elastic ball 5 is fixed in the groove 4, then the sealing ring 6 is arranged in the groove 4, the wear-resisting plate 13 is arranged on the outer ring surface of the sealing ring 6, the rubber ring 12 is arranged on the side surface of the butterfly plate 10, so that the wear-resisting capability can be improved due to the arrangement of the wear-resisting plate 13 when the butterfly plate 10 and the sealing ring 6 are worn during rotation of the butterfly plate 10, and the tightness of the butterfly plate 10 and the inner wall of the valve body 1 can be maintained due to the arrangement of the elastic ball 5.

Example two

On the basis of the first embodiment, elastic balls 5 are arranged, the elastic balls 5 are provided with a plurality of groups, the elastic balls 5 are regularly and circularly arranged in the grooves 4, the outer annular surface of the sealing ring 6 is fixedly connected to the side surface of the elastic balls 5, the inner annular surface of the sealing ring 6 is provided with a wear-resisting plate 13, the rubber ring 12 is in an annular plate-shaped structure, the inner annular surface of the rubber ring 12 is fixedly connected to the side surface of the butterfly plate 10, the positioning plates 11 are provided with two groups, and the two groups of positioning plates 11 are linearly arranged on the side surface of the butterfly plate 10;

when the butterfly plate is used, the butterfly plate 10 is sealed with the tight contact piece of the sealing ring 6, the abrasion-resistant plate 13 can prevent the problem that the sealing performance is reduced due to the friction between the sealing ring 6 and the rubber ring 12 due to long-term rotation, and the sealing ring 6 and the butterfly plate 10 can be always in tight contact by the elastic ball 5, so that the sealing performance is improved.

Example III

The second embodiment is provided with a filter frame 9, a filter screen 14 is arranged in the filter frame 9, the filter frame 9 is fixed in the placing groove 8 by bolts 15, the base 7 is of an annular plate-shaped structure, and the outer annular surface of the base 7 is fixedly connected with the inner side wall of the valve body 1;

when the butterfly plate 10 is used, the filter screen 14 can be utilized for filtering, so that the butterfly plate 10 is prevented from being damaged by a large object block in water, and the large object block can be buckled between the butterfly plate 10 and the inner side wall of the valve body 1 when the butterfly plate 10 is closed, so that the problem that the sealing performance of the butterfly plate 10 is reduced due to gap conduction is solved.

During actual use, fix elastic ball 5 in recess 4, then set up sealing washer 6 in recess 4, sealing washer 6 outer ring face is provided with antifriction plate 13, be provided with rubber circle 12 in butterfly plate 10 side, the antifriction plate's that can improve wear resistance when butterfly plate 10 and sealing washer 6 wear down when rotating butterfly plate 10 like this, the leakproofness of butterfly plate 10 and valve body 1 inner wall can be kept in the setting of elastic ball 5, can utilize filter screen 14 to filter, prevent that there is great thing piece to cause harm to butterfly plate 10 in the water, probably lead to great thing piece to buckle between butterfly plate 10 and valve body 1 inside wall when butterfly plate 10 is closed, thereby produce the clearance and lead to the problem that butterfly plate 10 leakproofness reduces, overall design has avoided generally when rotating butterfly plate 10, can lead to sealing washer 6 and butterfly plate 10's inner wall to rub, thereby lead to sealing washer 6 to wearing and tearing, can produce the clearance between sealing washer 6 and the butterfly plate 10, cause the leakproofness to weaken, the condition that the weeping appears.

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

Claims

1. A self-sealing valve core, characterized in that: the self-sealing valve core comprises: the valve comprises a valve body (1), wherein a control device (2) is arranged on the surface of the valve body (1), a valve rod (3) is arranged in the valve body (1), a groove (4) is formed in the inner wall of the valve body (1), an elastic ball (5) is arranged in the groove (4), and a sealing ring (6) is arranged on the side face of the elastic ball (5);

a base (7), a placing groove (8) is formed in the surface of the base (7), and a filter frame (9) is arranged in the placing groove (8);

the butterfly plate (10), butterfly plate (10) side is provided with locating plate (11), and butterfly plate (10) outer loop face is provided with rubber circle (12).

2. The self-sealing valve cartridge of claim 1, wherein: the outer ring surface of the sealing ring (6) is fixedly connected to the side surface of the elastic ball (5), and the inner ring surface of the sealing ring (6) is provided with a wear-resisting plate (13).

3. The self-sealing valve cartridge of claim 2, wherein: the rubber ring (12) is of an annular plate-shaped structure, and the inner annular surface of the rubber ring (12) is fixedly connected to the side surface of the butterfly plate (10).

4. A self-sealing valve cartridge as defined in claim 3, wherein: a filter screen (14) is arranged in the filter frame (9), and the filter frame (9) is fixed in the placing groove (8) by bolts (15).

5. The self-sealing valve cartridge of claim 4, wherein: the base (7) is of an annular plate-shaped structure, and the outer annular surface of the base (7) is fixedly connected to the inner side wall of the valve body (1).

6. The self-sealing valve cartridge of claim 5, wherein: the elastic balls (5) are provided with a plurality of groups, and the elastic balls (5) are regularly and circularly arranged in the grooves (4).

7. The self-sealing valve cartridge of claim 6, wherein: the positioning plates (11) are provided with two groups, and the two groups of positioning plates (11) are linearly arranged on the side surfaces of the butterfly plates (10).

8. A pneumatic butterfly valve, characterized in that: a self-sealing valve cartridge comprising any one of the above claims 1-7.