CN211951597U

CN211951597U - Novel soft sealing ball valve

Info

Publication number: CN211951597U
Application number: CN202020386656.2U
Authority: CN
Inventors: 魏瑞福
Original assignee: Global-Set Valve Components Jiangsu Co ltd
Current assignee: Global-Set Valve Components Jiangsu Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-17
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a novel soft sealing ball valve, which comprises a valve body, wherein the valve body is provided with a first sleeve body, a second sleeve body and a third sleeve body, the shaft diameter of the first sleeve body is increased in a step manner; the valve cavity is arranged in the valve body in a penetrating way, and a conical valve wall with gradually enlarged aperture is arranged on one side of the valve cavity, which is positioned on the third sleeve body; the sealing groove is annularly arranged on the wall of the conical valve; the first inner tooth groove and the second outer arc groove are arranged on the side wall of the sealing groove at intervals; and the flexible rubber ring is embedded in the sealing groove and matched with the first inner tooth groove and the second outer arc groove, and the radian of the flexible rubber ring is protruded out of the wall of the conical valve. The utility model discloses a sealed slot inlays establishes flexible rubber ring, and the first interior tooth's socket of cooperation is sealed with the outer arc groove reinforcing of second, avoids the bad trouble of valve body installation valve ball leakproofness in the past.

Description

Novel soft sealing ball valve

Technical Field

The application belongs to the technical field of valves, and specifically relates to a novel soft seal ball valve.

Background

The ball valve is a valve with the characteristics of full drift diameter and low flow resistance, is very suitable for being used as a valve for a long-distance pipeline, and is a new valve variety which develops the fastest in the last 50 years. The demand of global energy, chemical industry and other industries on pipeline ball valves is steadily increasing, especially in China as the second major economic body of the world, the pipeline ball valves are rapidly developed in the industries of petroleum, natural gas, chemical industry, urban construction and the like, and the pipeline ball valves serve as one of key devices in engineering to meet infinite development and market opportunities.

Oil, natural gas, chemical industry and energy account for more than 70% of the demand of the valve, and taking the continuous development and change demand of oil and natural gas as an example, the demand mainly focuses on the aspects of metal sealing, explosion and pressure reduction prevention, corrosion resistance, runaway discharge, early wear, equipment fatigue, preventive maintenance and the like. The natural gas transportation pipeline engineering is a very large and potential market for pipeline ball valves, long-distance pipelines require the wall thickness of the valves to be as thin as possible, and the valve materials have high yield toughness and corrosion resistance so as to meet the requirements of pipeline expansion and contraction, steering and regional environment change.

Although the existing ball valve has great progress in sealing performance, sealing rings are arranged between the valve seat and the valve body for soft sealing, and the valve seat and the valve ball are adjusted through inserts, the inserts can only achieve one-layer protection at present, gaps are easy to exist between the inserts, once the inserts are damaged, the inserts are troublesome to replace, and the position sealing performance of the inserts contacting with the spherical surface can only be ensured in a short time. Therefore, it is very important to solve the problem of poor sealing performance between the ball and the valve seat of the ball valve.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem that this application will be solved provides a novel soft seal ball valve, inlays through sealed slot and establishes flexible rubber ring, and the outer arc groove reinforcing of first interior tooth's socket of cooperation and second is sealed, avoids the trouble that valve body installation valve ball leakproofness was bad in the past.

In order to solve the technical problem, the utility model discloses a novel soft sealing ball valve, which comprises a valve body, wherein the valve body is provided with a first sleeve body, a second sleeve body and a third sleeve body, the shaft diameter of the first sleeve body is increased in a stepped manner; the valve cavity is arranged in the valve body in a penetrating way, and a conical valve wall with gradually enlarged aperture is arranged on one side of the valve cavity, which is positioned on the third sleeve body; the sealing groove is annularly arranged on the wall of the conical valve; the first inner tooth groove and the second outer arc groove are arranged on the side wall of the sealing groove at intervals; and the flexible rubber ring is embedded in the sealing groove and matched with the first inner tooth groove and the second outer arc groove, and the radian of the flexible rubber ring is protruded out of the wall of the conical valve.

According to an embodiment of the present invention, the first sleeve and the second sleeve are provided with annular grooves on outer walls thereof.

According to the utility model discloses an embodiment, wherein above-mentioned third set of outer lane is embedded to establish flexible guard shield axially, and flexible guard shield sets up to the organ formula.

According to an embodiment of the present invention, the first inner spline is provided with a plurality of inwardly protruding triangular teeth; the radian of the second outer arc groove is outwards convex.

According to an embodiment of the present invention, the length of the first inner spline is at least 15 mm.

Compared with the prior art, the application can obtain the following technical effects:

the flexible rubber ring is embedded in the sealing groove, the first inner tooth groove and the second outer arc groove are matched to enhance sealing, and the trouble of poor sealing performance of a valve ball installed on a valve body in the past is avoided.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a novel soft seal ball valve according to an embodiment of the present application.

Reference numerals

The valve comprises a valve body 10, a first sleeve body 11, a second sleeve body 12, a third sleeve body 13, a valve cavity 20, a conical valve wall 30, a sealing groove 40, a first inner tooth groove 41, a second outer arc groove 42, a flexible rubber ring 50, a ring groove 60 and a telescopic protective cover 70.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1, fig. 1 is a schematic view of a novel soft seal ball valve according to an embodiment of the present application. As shown in the figure, the novel soft sealing ball valve comprises a valve body 10, wherein the valve body 10 is provided with a first sleeve body 11, a second sleeve body 12 and a third sleeve body 13, the shaft diameter of which is increased in a step manner; a valve cavity 20 penetrating the valve body 10, wherein the valve cavity 20 is provided with a conical valve wall 30 with a gradually enlarged aperture at one side of the third sleeve 13; a sealing groove 40 annularly arranged on the conical valve wall 30; a first inner tooth groove 41 and a second outer arc groove 42 which are arranged on the side wall of the sealing groove 40 at intervals; and the flexible rubber ring 50 is embedded in the sealing groove 40 and matched with the first inner tooth groove 41 and the second outer arc groove 42, and the radian of the flexible rubber ring 50 is protruded out of the conical valve wall 30, so that the abutting effect is enhanced.

In one embodiment of the present invention, the valve body 10 is stepped and has a first sleeve 11, a second sleeve 12, and a third sleeve 13, and a valve cavity 20 is provided therein for circulating a medium. One end of the valve cavity 20 is provided with an outward-expanding conical valve wall 30, and the conical valve wall 30 is provided with a sealing groove 40 in a surrounding manner and used for embedding a flexible rubber ring 50 to complete flexible sealing with a valve ball. In addition, the bottom side wall of the sealing groove 40 is also respectively provided with a first inner tooth groove 41 and a second outer arc groove 42 which are spaced, so as to strengthen the sealing contact with the flexible rubber ring 50 and realize high stability after installation.

Specifically, the first inner spline 41 is provided with a plurality of inwardly protruding triangular teeth; the second outer arc groove 42 radian is outwards protruding, and corresponding, flexible rubber ring 50 closely laminates, through the first inner tooth's socket 41 and the second outer arc groove 42 that change, realizes high-efficient sealed, improves stability. Preferably, the length of the first internal spline 41 is at least 15mm, so that a sufficient sealing stroke is ensured, and the installation is more stable.

The first sleeve 11 and the second sleeve 12 are provided with annular grooves 60 on their outer walls for receiving sealing rings to tightly connect the outer housing.

The outer ring of the third sleeve body 13 is axially embedded with a telescopic shield 70, the telescopic shield 70 is arranged in an organ type and is used for internally arranging a spring in elastic connection, and meanwhile, the telescopic protection improves the sealing effect and is convenient to use.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. A novel soft seal ball valve is characterized by comprising:

the valve body is provided with a first sleeve body, a second sleeve body and a third sleeve body, wherein the shaft diameter of the first sleeve body is increased in a step mode;

the valve cavity is arranged in the valve body in a penetrating mode, and a conical valve wall with gradually enlarged aperture is arranged on one side of the third sleeve body;

the sealing groove is annularly arranged on the wall of the conical valve;

the first inner tooth groove and the second outer arc groove are arranged on the side wall of the sealing groove at intervals; and

the flexible rubber ring is embedded in the sealing groove and matched with the first inner tooth groove and the second outer arc groove, and the radian of the flexible rubber ring is protruded out of the wall of the conical valve.

2. The novel soft seal ball valve as claimed in claim 1, wherein the outer walls of the first sleeve body and the second sleeve body are provided with annular grooves.

3. The novel soft seal ball valve as claimed in claim 1, wherein a telescopic shield is axially embedded in the third sleeve outer ring, and the telescopic shield is arranged in an accordion manner.

4. The novel soft seal ball valve according to claim 1, wherein the first internal spline is provided as a plurality of inwardly protruding triangular teeth; the radian of the second outer arc groove is outwards convex.

5. The novel soft seal ball valve of claim 1, wherein the first internal spline is at least 15mm in length.