CN201180784Y

CN201180784Y - Spring backbone sealing ring

Info

Publication number: CN201180784Y
Application number: CNU2008200343336U
Authority: CN
Inventors: 景纪荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-24
Filing date: 2008-04-24
Publication date: 2009-01-14
Anticipated expiration: 2018-04-24

Abstract

The utility model relates to a sealing ring structure for end face sealing, in particular to a spring skeleton sealing ring, which comprises a ring-shaped base body, a ring-shaped groove which is formed on the inner ring surface of the ring-shaped base body and passes through the entire inner periphery, and a metal spring strip which is arranged along the ring-shaped groove and provided with a nearly V-shaped cross section. The sealing ring structure adds an elastic skeleton based on the conventional sealing ring structure, so as to remarkably improve the elasticity, enhance the sealing performance and also reduce deformation possibility of product, thereby prolonging the service life of the product.

Description

Spring backbone sealing ring

Technical field

The utility model relates to a kind of ring structure that is used for end face seal, specifically is a kind of spring backbone sealing ring.

Background technique

The existing seal ring that is used for the pipeline equipment end face seal is generally single rubber material or other macromolecular materials, the seal ring of this structure is when being used for the higher occasion of relatively large equipment and some temperature, pressure, its sealing effect is difficult for guaranteeing, its material also follows the string because of aging distortion easily, thereby working life is shorter, need frequent the replacing, influence the operational efficiency of equipment.

Summary of the invention

Technical problem to be solved in the utility model is that the spring backbone sealing ring of a kind of good sealing effect, long service life is provided.

Spring backbone sealing ring of the present utility model includes an annular matrix, has the annular groove that connects whole inner circumference on the inner peripheral surface of annular matrix, is provided with the metal spring bar that a sectional shape roughly is " V-arrangement " along annular groove.

But the edge of opening of described annular groove also is provided with the step that the barrier metal spring outwards moves.

On two sides of metal spring bar, staggered have a horizontal notch, makes the metal spring bar be easy to bending more, to adapt to the circumference trend of annular groove.

Also bind round on the surface, outer ring of described annular matrix a circle elastic metal strip is arranged.

The utility model has been owing to increased elastic skeleton on conventional seals coil structures basis, thereby improved the elasticity of product greatly, strengthened its sealability, also makes product not yielding, thereby prolonged its working life.

Description of drawings

Fig. 1 is the perspective view that the utility model embodiment partly cuts open;

Fig. 2 is the sectional shape schematic representation of metal spring bar;

Fig. 3 is the plane structure schematic representation of metal spring bar extended configuration.

Embodiment

As shown in Figure 1, the sealing circle has the annular matrix 1 of a fluorine rubber or polytetrafluoroethylmaterial material, on the inner peripheral surface of annular matrix, have the annular groove 2 that connects whole inner circumference, be provided with the metal spring bar 3 (referring to Fig. 2) that a sectional shape roughly is " V-arrangement " along annular groove.Two sides of metal spring bar are stopped by the step 4 of annular groove edge of opening, deviate to prevent the metal spring bar.Hoop has a circle elastic metal strip 5 on the surface, outer ring of annular matrix, outwards is out of shape to prevent matrix.

As shown in Figure 3, along being staggeredly equipped with horizontal notch 6 on two sides of metal spring bar 3, make the metal spring bar in V-arrangement cross section be easy to bend to annular more, so that be placed in the annular groove.

Claims

1, a kind of spring backbone sealing ring, include an annular matrix (1), it is characterized in that: on the inner peripheral surface of annular matrix, have the annular groove (2) that connects whole inner circumference, be provided with the metal spring bar (3) that a sectional shape roughly is " V-arrangement " along annular groove.

2, spring backbone sealing ring according to claim 1 is characterized in that: but the edge of opening of annular groove is provided with the step (4) that the barrier metal spring outwards moves.

3, spring backbone sealing ring according to claim 1 and 2 is characterized in that: along two sides of metal spring bar (3), staggered have a horizontal notch (6).

4, spring backbone sealing ring according to claim 3 is characterized in that: also binding round on the surface, outer ring of described annular matrix (1) has a circle elastic metal strip (5).