CN2679434Y

CN2679434Y - Seal loop

Info

Publication number: CN2679434Y
Application number: CN 200420025179
Authority: CN
Inventors: 倪静丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-04
Filing date: 2004-03-04
Publication date: 2005-02-16
Anticipated expiration: 2014-03-04

Abstract

The utility model provides a seal loop, which is composed of a sealing ring body, a lug boss and two wave crests. The seal loop is characterized in that the lug boss is arranged at outside of the sealing ring; the sealing surface is provided with two wave crests; an inclination angle alpha is formed between the edges of the two wave crests. The utility model has the advantages that the sealing ring does not shed during transport the valve and during the movement of the start and stop, and the sealing performance is more reliable.

Description

A kind of seal ring

Affiliated technical field

The utility model relates to a kind of seal ring that is installed on the glasses valve.

Background technique

The present glasses valve that uses of metallurgy industry blast furnace system, its seal ring is general to adopt flat O shape circle, though sealing effect is pretty good, in transit or in the valve opening and closing movement process, seal ring easily comes off in the groove of flashboard.

Summary of the invention

In order to overcome the existing caducous deficiency of glasses valve seal ring, the utility model provides a kind of sealability more reliable, and the seal ring of difficult drop-off.

The technological scheme that its technical problem that solves the utility model adopts is, a kind of seal ring, form by seal ring body, boss, twice crest, boss is positioned at the seal ring outside, there is the twice crest at the sealing surface place, form an inclination alpha between the limit of crest, have skewed slot on the flashboard relevant position that seal ring is installed, the angle of skewed slot also is α, and bottom land also has the groove consistent with the seal ring boss, and seal ring is installed in the groove on the flashboard, owing to have α angle and boss, so the seal ring difficult drop-off is simultaneously owing to bimodal existence, so sealing is more reliable.

The beneficial effects of the utility model be valve in transit or open and close seal ring difficult drop-off in the movement process, and sealability is more reliable.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is embodiment's a tectonic maps.

Fig. 2 is the tectonic maps of traditional flat O-ring seals.

Among the figure: 1. boss; 2. crest; 3. seal ring body.

Embodiment

As shown in Figure 1, there is a boss (1) in the outside of seal ring body (3), and there is twice crest (2) at the sealing surface place, forms an inclination alpha between the limit of twice crest (2).

Claims

1, a kind of seal ring is made up of seal ring body, boss, twice crest, and it is characterized in that: there is a boss in the outside of seal ring, and there is the twice crest at the sealing surface place, forms an inclination alpha between the limit of crest.