CN217440811U

CN217440811U - Novel regulating valve sealing structure

Info

Publication number: CN217440811U
Application number: CN202220137411.5U
Authority: CN
Inventors: 张�诚; 刘志耕; 寇志良
Original assignee: Chengdu Dazheng Haiweier Control Valve Co ltd
Current assignee: Chengdu Dazheng Haiweier Control Valve Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-09-16
Anticipated expiration: 2032-01-17

Abstract

The utility model relates to a governing valve technical field provides a novel governing valve seal structure, including valve body and disk seat, open at the top of valve body has downwardly extending's medium entry, open the bottom of valve body has upwardly extending's medium export, communicate through the valve pocket between medium export and the medium entry, open at the top of valve pocket has downwardly extending's annular seal groove, the longitudinal section of annular seal groove is big-end-up's loudspeaker form, the disk seat includes the base plate, spliced pole and annular seal spare, the base plate sets up in the valve pocket, and suit with the valve pocket, the spliced pole sets up in the medium export, and with the inner wall threaded connection of medium export, spliced pole and base plate fixed connection, the annular seal spare sets up in the annular seal groove, and suit with the annular seal groove, the annular seal spare is fixed connection with the base plate; the valve body, valve seat and annular seal are all made of rigid metal material.

Description

Novel regulating valve sealing structure

Technical Field

The utility model relates to a governing valve technical field, concretely relates to novel governing valve seal structure.

Background

The sealing structure is a structure capable of preventing liquid or gas from leaking in the integral fuel tank or the airtight chamber. The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit.

The existing regulating valve sealing structures on the market all have the problem of complex structure, so that the production is difficult and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a novel governing valve seal structure makes its structure comparatively simple, is convenient for produce and make.

In order to achieve the above purpose, the present invention is implemented by the following technical solutions: a novel sealing structure of a regulating valve comprises a valve body and a valve seat, wherein the top of the valve body is provided with a medium inlet extending downwards, the bottom of the valve body is provided with a medium outlet which extends upwards, the medium outlet is communicated with the medium inlet through a valve cavity, the top of the valve cavity is provided with an annular sealing groove extending downwards, the longitudinal section of the annular sealing groove is in a horn shape with a large upper part and a small lower part, the valve seat comprises a base plate, a connecting column and an annular sealing element, the base plate is arranged in the valve cavity and is matched with the valve cavity, the connecting column is arranged in the medium outlet and is in threaded connection with the inner wall of the medium outlet, the connecting column is fixedly connected with the substrate, the annular sealing element is arranged in the annular sealing groove and is matched with the annular sealing groove, and the annular sealing element is fixedly connected with the substrate;

the valve body, the valve seat and the annular seal are all made of rigid metal material.

Furthermore, a sealing ring is installed at the bottom of the base plate and used for achieving sealing between the base plate and the inner wall of the valve cavity.

Further, the seal ring is made of a rubber material.

Further, the sealing ring surrounds an outer side of the annular seal.

Further, a valve cage is mounted on the top of the valve seat.

The utility model has the advantages that: the utility model provides a pair of novel governing valve seal structure, valve body, disk seat and annular seal spare are made by rigid metal material. A hard seal is achieved when the annular seal engages the annular seal groove, so that water in the media inlet cannot flow into the media outlet. And the whole structure is simpler, and the production and the manufacture are convenient.

Drawings

Fig. 1 is a schematic view of the internal cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Reference numerals are as follows: 10-valve body, 11-medium inlet, 12-medium outlet, 13-valve cavity, 14-annular sealing groove, 20-valve seat, 21-base plate, 22-connecting column, 23-annular sealing element, 24-sealing ring, 30-valve cage and 31-small hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In this application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "horizontal," "top," "bottom," "upper," "lower," "inner" and "outer" and the like are used in the orientation or positional relationship shown in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1-2, the utility model provides a novel governing valve seal structure, including valve body 10 and disk seat 20, open at the top of valve body 10 has downwardly extending's medium entry 11, and open at the bottom of valve body 10 has the medium export 12 of upwardly extending, communicates through valve pocket 13 between medium export 12 and the medium entry 11. The above components are all in the prior art, and the specific structure is not described herein.

The top of the valve cavity 13 is provided with an annular sealing groove 14 extending downwards, and the longitudinal section of the annular sealing groove 14 is in a horn shape with a large top and a small bottom. The valve seat 20 includes a base plate 21, a connecting post 22 and an annular seal 23. The base plate 21 is disposed within the valve chamber 13 and conforms to the valve chamber 13. The connecting column 22 is disposed in the medium outlet 12 and is in threaded connection with the inner wall of the medium outlet 12, the connecting column 22 is fixedly connected with the substrate 21, preferably, an outer thread is disposed on the outer circumferential surface of the connecting column 22, an inner thread is disposed on the inner wall of the medium outlet 12, and the inner thread is adapted to the outer thread. The annular seal 23 is disposed in the annular seal groove 14 and adapted to the annular seal groove 14, and the annular seal 23 is fixedly connected to the base plate 21.

The valve body 10, valve seat 20 and annular seal 23 are all made of a rigid metallic material.

The annular sealing element 23 is matched with the annular sealing groove 14 to realize hard sealing, so that water in the medium outlet 12 cannot flow into the medium inlet 11, the whole structure is simple, and the production and the manufacturing are convenient. In addition, because valve body 10, valve seat 20 and annular seal 23 are made by rigid metal material, the contact deformation is minimum, and the size is accurate, consequently the utility model discloses the sealing pressure that can bear is also higher. When the maintenance is needed, the staff rotates the base plate 21, so that the connecting column 22 leaves the medium outlet 12, and the operation is convenient.

In one embodiment, a sealing ring 24 is fixedly mounted on the bottom of the base plate 21, and the sealing ring 24 is used for sealing the base plate 21 and the inner wall of the valve cavity 13.

When the connecting post 22 is mated with the media outlet 12, the base plate 21 presses the sealing ring 24 tightly, thereby achieving a soft seal, further enhancing the seal between the valve seat 20 and the valve body 10.

In one embodiment, the seal ring 24 is made of a rubber material.

In one embodiment, a sealing ring 24 surrounds the outside of the annular seal 23, further enhancing the seal between the valve seat 20 and the valve body 10.

In one embodiment, a cage 30 is mounted on top of the valve seat 20, and a plurality of apertures 31 are formed through the cage 30, the apertures 31 dispersing the water passing therethrough, thereby reducing noise and increasing quietness.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A novel governing valve seal structure, includes valve body (10) and valve seat (20), open at the top of valve body (10) has downwardly extending's medium entry (11), open at the bottom of valve body (10) has upwardly extending's medium export (12), medium export (12) with communicate through valve pocket (13) between medium entry (11), its characterized in that: the top of the valve cavity (13) is provided with an annular sealing groove (14) extending downwards, the longitudinal section of the annular sealing groove (14) is in a horn shape with a large upper part and a small lower part, the valve seat (20) comprises a base plate (21), a connecting column (22) and an annular sealing element (23), the base plate (21) is arranged in the valve cavity (13) and is adapted to the valve cavity (13), the connecting column (22) is arranged in the medium outlet (12) and is in threaded connection with the inner wall of the medium outlet (12), the connecting column (22) is fixedly connected with the base plate (21), the annular sealing element (23) is arranged in the annular sealing groove (14) and is adapted to the annular sealing groove (14), and the annular sealing element (23) is fixedly connected with the base plate (21);

the valve body (10), the valve seat (20) and the annular seal (23) are all made of a rigid metal material.

2. The novel regulating valve sealing structure according to claim 1, characterized in that: and a sealing ring (24) is mounted at the bottom of the base plate (21), and the sealing ring (24) is used for sealing the base plate (21) and the inner wall of the valve cavity (13).

3. The novel regulating valve sealing structure according to claim 2, characterized in that: the sealing ring (24) is made of rubber material.

4. The novel regulating valve sealing structure according to claim 2, characterized in that: the sealing ring (24) surrounds the outside of the annular seal (23).

5. The novel regulating valve sealing structure according to claim 1, characterized in that: and a valve cage (30) is arranged on the top of the valve seat (20).