CN211951447U

CN211951447U - Dual self sealss electric stop valve

Info

Publication number: CN211951447U
Application number: CN202020235254.2U
Authority: CN
Inventors: 张瑾
Original assignee: Zhejiang Huaxing Valve Industry Co ltd
Current assignee: Zhejiang Huaxing Valve Industry Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-11-17
Anticipated expiration: 2030-03-02

Abstract

The utility model discloses a dual self sealss electric stop valve, which comprises a valve body, the inner wall swing joint of valve body has the valve clack, the top fixedly connected with valve rod of valve clack, bolt fixedly connected with valve gap is passed through at the top of valve body, valve rod swing joint is at the middle part of valve gap. The utility model discloses a valve body and valve gap extrude rubber circle and seal assembly, be close to valve rod one end at valve body and valve gap through the rubber circle and play sealed effect, and when valve body and valve gap extrude seal assembly, can make the stripper plate drive the one end extrusion of second arc to first arc, and make the inside air of central authorities' gasbag pass through communicating pipe, cavity and intercommunication chamber get into in the sealed gasbag, make sealed gasbag inflation and closely laminate with the bottom of valve gap, with sealed purpose, and form double seal through rubber circle and seal assembly between valve body and valve gap, thereby make the device leakproofness better.

Description

Dual self sealss electric stop valve

Technical Field

The utility model relates to an electric stop valve equipment field specifically is a dual self sealss electric stop valve.

Background

A gate is a device used in a fluid system to control the direction, pressure, and flow of a fluid. The valve is a device capable of controlling the flow of a medium (liquid, gas, powder) in piping and equipment by flowing or stopping the medium. The valve is a control part in pipeline fluid conveying system, it is used for changing the passage section and medium flow direction, and has the functions of flow guiding, stopping, throttling, non-return, flow-dividing or overflow pressure relief, etc., and the electric stop valve and flange gate valve are the same type valve, and are formed from two portions of electric actuating mechanism or pneumatic actuating mechanism and stop valve, and its difference lies in that its closing component is a valve body, and the valve body can be rotated around the central line of valve body so as to attain the goal of opening and closing. Gate valves are used in pipelines primarily to shut off, distribute and change the direction of flow of the medium. Two-piece ball valve, three-piece ball valve are a new type valve which is widely used in recent years.

However, in the prior art, the sealing effect is poor in practical use, and the leakage condition exists, so that the normal use of the stop valve is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual self sealss electric stop valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the valve comprises a valve body, wherein the inner wall of the valve body is movably connected with a valve clack, the top of the valve clack is fixedly connected with a valve rod, the top of the valve body is fixedly connected with a valve cover through a bolt, the valve rod is movably connected with the middle part of the valve cover, the top of the valve body corresponding to the position of the valve cover is provided with a sealing groove, the inner wall of the sealing groove is respectively and fixedly connected with a rubber ring and a sealing assembly, the sealing assembly comprises a sealing ring, a first arc-shaped plate is fixedly arranged inside the sealing ring, the top of the first arc-shaped plate is fixedly connected with a connecting block, the top of the connecting block is fixedly connected with a second arc-shaped plate, the inner walls of the first arc-shaped plate and the second arc-shaped plate are both fixedly connected with a central air bag, the top of the second arc-shaped plate, and the inside of the communicating pipe is respectively communicated with the central air bag and the inside of the cavity, a communicating cavity is formed in the top of the sealing ring, and the top of the sealing ring corresponding to the communicating cavity is fixedly connected with a sealing air bag.

Preferably, the first arc-shaped plate and the second arc-shaped plate are equal in size, and a gap exists between opposite surfaces of the first arc-shaped plate and the second arc-shaped plate.

Preferably, the number of the communication cavities is two, and the two communication cavities are symmetrically arranged around a vertical axis of a midpoint of the central air bag.

Preferably, the bottom of the valve cover corresponding to the position of the sealing air bag is provided with a groove, and the inner wall of the groove is movably attached to the surface of the sealing air bag.

Preferably, the communicating pipe, the cavity, the communicating cavity and the sealing air bag are communicated, and the sealing ring is a rubber component.

Preferably, the first arc-shaped plate, the connecting block, the second arc-shaped plate and the central air bag are all embedded in the sealing ring in a penetrating mode.

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

1. the utility model discloses a valve body and valve gap extrude rubber circle and seal assembly, play sealed effect at valve body and valve gap one end near the valve rod through the rubber circle, and when valve body and valve gap extrude seal assembly, can make the stripper plate drive the extrusion of second arc to the one end of first arc, and make the air in the central air bag enter sealed gasbag through communicating pipe, cavity and communicating chamber, make sealed gasbag expand and closely laminate with the bottom of valve gap, in order to play the purpose of sealing, and form double seal between valve body and valve gap through rubber circle and seal assembly, thus make the device leakproofness better;

2. the utility model discloses still set up the recess simultaneously through the bottom in the corresponding sealed gasbag position of valve gap for when sealed gasbag inflation, can make sealed gasbag closely laminate the inner wall at valve gap bottom recess, thereby make sealed gasbag and valve gap bottom be connected inseparabler, sealed effect is better.

Drawings

FIG. 1 is a front sectional view of the overall structure of a dual self-sealing electric stop valve of the present invention;

FIG. 2 is an enlarged view of the structure at A in the overall view of FIG. 1 of the dual self-sealing electric stop valve of the present invention;

fig. 3 is the utility model relates to a dual self sealss electric stop valve seal assembly structure part is just cutting open the drawing.

In the figure: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. a valve cover; 5. a sealing groove; 6. a rubber ring; 7. a seal assembly; 70. a seal ring; 71. a first arc-shaped plate; 72. connecting blocks; 73. a second arc-shaped plate; 74. a central air bag; 75. a pressing plate; 76. a communicating pipe; 77. a cavity; 78. a communicating cavity; 79. the air bag is sealed.

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. 1-3, the present invention provides a technical solution: the valve comprises a valve body 1, wherein the inner wall of the valve body 1 is movably connected with a valve clack 2, the top of the valve clack 2 is fixedly provided with a valve rod 3, the top of the valve body 1 is fixedly provided with a valve cover 4 through a bolt, the valve rod 3 is movably connected with the middle part of the valve cover 4, the top of the valve body 1 corresponding to the position of the valve cover 4 is provided with a sealing groove 5, the inner wall of the sealing groove 5 is respectively and fixedly provided with a rubber ring 6 and a sealing assembly 7, the sealing assembly 7 comprises a sealing ring 70, the inside of the sealing ring 70 is fixedly provided with a first arc-shaped plate 71, the top of the first arc-shaped plate 71 is fixedly provided with a connecting block 72, the top of the connecting block 72 is fixedly provided with a second arc-shaped plate 73, the inner walls of the first arc-shaped plate 71 and the second arc-shaped plate 73 are both fixedly provided, the sealing ring 70 is provided with a cavity 77 inside, the communicating pipe 76 is communicated with the central air bag 74 and the cavity 77 inside, the sealing ring 70 is provided with a communicating cavity 78 on the top, and the sealing ring 70 is fixedly provided with a sealing air bag 79 on the top corresponding to the communicating cavity 78.

The first arc-shaped plate 71 and the second arc-shaped plate 73 are equal in size, and a gap exists between opposite surfaces of the first arc-shaped plate 71 and the second arc-shaped plate 73.

The number of the communication chambers 78 is two, and the two communication chambers 78 are symmetrically arranged about a vertical axis of a midpoint of the central air bag 74.

The bottom in the corresponding sealed gasbag 79 position of valve gap 4 is seted up flutedly, and the inner wall of recess and the surface activity laminating of sealed gasbag 79 set up the recess through the bottom in the corresponding sealed gasbag 79 position of valve gap 4 for when sealed gasbag 79 inflation, can make sealed gasbag 79 closely laminate the inner wall in valve gap 4 bottom recess, thereby make the connection of sealed gasbag 79 and valve gap 4 bottom inseparabler, sealed effect is better.

The communicating pipe 76, the cavity 77, the communicating chamber 78 and the sealing air bag 79 are communicated with each other, and the sealing ring 70 is made of rubber.

The first arc-shaped plate 71, the connecting block 72, the second arc-shaped plate 73 and the central air bag 74 are all embedded in the sealing ring 70 in a penetrating way.

The working principle is as follows: when in use, the utility model arranges the rubber ring 6 and the sealing component 7 between the valve body 1 and the valve cover 4, so that when the valve body 1 and the valve cover 4 are pressed by the bolt, the valve body 1 and the valve cover 4 can extrude the rubber ring 6 and the sealing component 7, the sealing effect is achieved at one end of the valve body 1 and the valve cover 4 close to the valve rod 3 by the rubber ring 6, and when the valve body 1 and the valve cover 4 extrude the sealing component 7, the extruding plate 75 can drive the second arc-shaped plate 73 to extrude towards one end of the first arc-shaped plate 71, the first arc-shaped plate 71 and the second arc-shaped plate 73 are deformed, the central air bag 74 between the first arc-shaped plate 71 and the second arc-shaped plate 73 is extruded, the air in the central air bag 74 enters the cavity 77 through the communicating pipe 76, the cavity 77 enters the sealing air bag 79 through the extruding plate 75, and the sealing air bag 79 is expanded, and the sealing air bag 79 is tightly attached to the bottom of the valve cover 4 for sealing, and a double seal is formed between the valve body 1 and the valve cover 4 through the rubber ring 6 and the sealing assembly 7, so that the device has better sealing performance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. The utility model provides a dual self sealss electric stop valve, includes valve body (1), its characterized in that: the inner wall swing joint of valve body (1) has valve clack (2), the top fixedly connected with valve rod (3) of valve clack (2), the top of valve body (1) is through bolt fixedly connected with valve gap (4), valve rod (3) swing joint is in the middle part of valve gap (4), seal groove (5) have been seted up at the top of corresponding valve gap (4) position of valve body (1), the inner wall of seal groove (5) is fixedly connected with rubber circle (6) and seal assembly (7) respectively, seal assembly (7) include sealing washer (70), the inside of sealing washer (70) is fixed and is equipped with first arc wall (71), the top fixedly connected with connecting block (72) of first arc wall (71), the top fixedly connected with second arc wall (73) of connecting block (72), and the inner wall of first arc wall (71) and second arc wall (73) all fixedly connected with central gasbag (74), the top fixedly connected with stripper plate (75) of second arc (73), the equal fixedly connected with communicating pipe (76) in middle part of stripper plate (75), second arc (73) and central gasbag (74), cavity (77) have been seted up to the inside of sealing washer (70), and the inside of communicating pipe (76) is linked together with the inside of central gasbag (74) and cavity (77) respectively, intercommunication chamber (78) have been seted up at the top of sealing washer (70), the top fixedly connected with sealed gasbag (79) of the corresponding intercommunication chamber (78) position of sealing washer (70).

2. A dual self-sealing electrical shut-off valve according to claim 1, wherein: the first arc-shaped plate (71) and the second arc-shaped plate (73) are equal in size, and a gap exists between opposite surfaces of the first arc-shaped plate (71) and the second arc-shaped plate (73).

3. A dual self-sealing electrical shut-off valve according to claim 1, wherein: the number of the communication cavities (78) is two, and the two communication cavities (78) are symmetrically arranged relative to the vertical axis of the midpoint of the central air bag (74).

4. A dual self-sealing electrical shut-off valve according to claim 1, wherein: the bottom of the valve cover (4) corresponding to the position of the sealing air bag (79) is provided with a groove, and the inner wall of the groove is movably attached to the surface of the sealing air bag (79).

5. A dual self-sealing electrical shut-off valve according to claim 1, wherein: the communicating pipe (76), the cavity (77), the communicating cavity (78) and the sealing air bag (79) are communicated, and the sealing ring (70) is a rubber component.

6. A dual self-sealing electrical shut-off valve according to claim 1, wherein: the first arc-shaped plate (71), the connecting block (72), the second arc-shaped plate (73) and the central air bag (74) are embedded in the sealing ring (70) in a penetrating mode.