CN201992162U

CN201992162U - Sealing structure of valve

Info

Publication number: CN201992162U
Application number: CN2011201354274U
Authority: CN
Inventors: 叶迎春
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-03
Filing date: 2011-05-03
Publication date: 2011-09-28
Anticipated expiration: 2021-05-03

Abstract

The utility model relates to a sealing structure of a valve, which comprises a valve body. The valve body is provided with a connecting port, an annular sealing combination surface is disposed at the port, at least one annular convex rib is arranged on the sealing combination surface, and a gasket is disposed at the sealing combination surface. The pressure bearing capacity of the sealing structure is greatly improved, liquid leakage and gas leakage are prevented, and the sealing structure has the advantages of simple specific structure and fine sealing effect.

Description

A kind of sealing configuration of valve

Technical field

The utility model relates to a kind of valve, specifically is a kind of sealing configuration of valve.

Background technique

Valve is that pipeline connects common components, use also very extensive, be connected in order to guarantee that sealing is provided with sealing gasket usually on the junction surface of valve between valve and valve and valve and the pipeline at present, the junction surface of valve is from both sides crush seal pad, thereby reach better sealing effect, leakage or gas leakage situation take place under the very high situation of internal hydraulic pressure or air pressure easily, in use sealing gasket skew leakage or gas leakage easily take place in valve and connecting tube under the motion collision state, the junction plane of this sealing configuration sealing gasket and junction surface is the plane, the sealing gasket bearing capacity is limited, can not work under the environment of high pressure.

Summary of the invention

The purpose of this utility model is to provide a kind of sealing configuration of valve, on the junction surface of existing sealing configuration, set up annular convex rib, thereby changing the sealing configuration junction plane is curved surface, thereby the bearing capacity of lift-off seal structure greatly, prevent the generation of leakage gas leakage situation, concrete structure is simple, the characteristics of good sealing effect.

For achieving the above object by the following technical solutions:

A kind of sealing configuration of valve, comprise valve body, be provided with connection interface, be provided with the sealed faying face of annular at jointing at valve body, it is characterized in that: be provided with an annular convex rib on described sealed faying face at least, the place is provided with sealing gasket at sealed faying face.

The utility model is provided with annular convex rib on sealed faying face, this structure is when connecting, convex annular influential point of tendons crush seal pad and being embedded on the sealing gasket, the surface of contact of sealing gasket and junction plane is a curved surface and non-planar surface like this, this area of contact can increase, when pressurized, the pressure of surface of contact conduction also is non-rectilinear but curve, has so just promoted the bearing capacity of sealing configuration greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model other direction;

Fig. 3 is the internal structure schematic representation of the utility model sealing configuration;

Fig. 4 is the utility model Fig. 3 A place structure for amplifying schematic representation.

Embodiment

Shown in Fig. 1-4, a kind of sealing configuration of valve comprises valve body 1, be provided with connection interface 11 at valve body 1, be provided with annular sealed faying face 12 at jointing, on described sealed faying face 12, be provided with the convex tendon 13 of an annular, locate to be provided with sealing gasket 14 in conjunction with 12 in sealing.

The utility model is by being provided with annular convex rib 13 on junction plane 12, when annular convex rib 13 is subjected to press contacts with sealing gasket 14, annular convex rib 13 can be embedded into makes the sealing gasket surface become curved surface by the plane on the sealing gasket 14, this curved surface place quite forms a ring-type pressure-bearing line on the sealing gasket surface, prevent leakage or gas leakage, thus the bearing capacity of lift-off seal structure greatly.

Size according to junction plane also can be provided with a plurality of annular convex ribs, the coaxial setting of each annular convex rib, and the relative annular convex rib of a plurality of annular convex rib bearing capacities is better, and the quantity of annular convex rib is decided on the area and the seal request of junction plane.

Claims

1. the sealing configuration of a valve, comprise valve body, be provided with connection interface, be provided with the sealed faying face of annular at jointing at valve body, it is characterized in that: be provided with an annular convex rib on described sealed faying face at least, the place is provided with sealing gasket at sealed faying face.