CN201363497Y

CN201363497Y - Composite double sealing washer

Info

Publication number: CN201363497Y
Application number: CNU2009200319420U
Authority: CN
Inventors: 祝海峰; 祝亚利
Original assignee: XIANYANG HAILONG COMPOSITE MATERIAL CO Ltd
Current assignee: XIANYANG HAILONG COMPOSITE MATERIAL CO Ltd
Priority date: 2009-02-18
Filing date: 2009-02-18
Publication date: 2009-12-16
Anticipated expiration: 2019-02-18

Abstract

The utility model relates to a composite double sealing washer, which belongs to the technical field for manufacture technology of sealing devices. The composite double sealing washer has the main technical characteristics that a ring-shaped rubber sealing ring is fixedly arranged on an inner ring of a ring-shaped limit sealing ring; ring-shaped ripples are arranged on the upper surface and on the lower surface of the ring-shaped rubber sealing ring; and the cross sections of the ring-shaped ripples take the shape of saw teeth. The utility model has the advantages of simple structure, convenient use, low manufacturing cost, light weight, longer service life, stable state of retention capacity of bolts after being used and very good creep deformation and relaxation resistant performances. A metal or high-intensity non-metal ring-shaped limit sealing ring is fixedly arranged on an outer ring of the ring-shaped limit sealing ring, so that the composite sealing washer not only has good sealing effect, but also has limit function, can greatly increase the mechanical pressure resistant intensity of the sealing washer, is applied to the technical field of machine manufacture or fluid delivery, and has reliable sealing effect.

Description

A kind of Composite Double seal washer

One, technical field

The utility model relates to employed seal ring on a kind of machinery, and specifically a kind of Composite Double seal washer belongs to mechanically a kind of air locking production technical field.

Two, background technique

In mounting technology fields such as machinery, petroleum pipeline, transformer, in order to make mechanical internal cavity sealing effect better, usually be lined with different seal ring with folder between mechanical fitting docks at mechanical fitting, the sealing of mechanical connecting part internal cavity be can make, sealing and conveying realized liquid.All need to seal butt joint during for example to petroleum pipeline and motor assembling, prevent that the joint poor sealing from causing gas leak of the oil leakage with gasket seal.Existing gasket seal adopts homogenous material mostly, as rubber seal, is easy to distortion after this sealing material in use is squeezed.Particularly interface is the accessory on plane when sealing, and makes the seal ring deformed damaged and comes off with existing air locking is the easiest, thereby cause between the mechanical fitting poorly sealed.For this reason, people are provided with an annular groove to mechanical fitting one end that needs seal, and then seal ring are embedded in the groove of metalwork to dock then, can reach the seal action to metal device.Though this method can play the effect of sealing, process cutting to sealed metal device surface, like this with regard to invisible increase workload, increased the manufacture cost of machinery.

Three, model utility content

The purpose of this utility model is for the air locking that solves in the existing seal ring is a single layer structure, the infinite place function, and the sealing effect of existence is poor, the easy extrusion damage of seal ring, seal degree is difficult to artificial support and holds, thereby proposes a kind of new technological scheme.

For achieving the above object, the utility model designing technique defective of solving its existence adopts following technological scheme to be:

A kind of Composite Double seal washer, it is to be made of the annular stop seal ring, be fixed with the ring-shaped rubber seal ring on the ring in the annular stop seal ring, described ring-shaped rubber seal ring upper and lower surface is provided with annular corrugated, and described annular corrugated its sectional shape is a zigzag fashion.

Be located at that the ring-shaped rubber seal ring upper and lower surface on the ring is provided with in the annular stop seal ring with concentric annular corrugated of annular stop seal ring, the sectional shape of its upper and lower faces is a zigzag fashion.

The advantage that the utility model is compared with prior art had is: simple in structure, easy to use, because ring-shaped rubber seal ring upper and lower surface is two zigzag fashion, compares with the conventional seals device, has the double-layer seal effect, make sealing effect excellent more, use back bolt confining force in stable condition, the creep resistant relaxation property is very good, and cheap for manufacturing cost, in light weight, working life is long.On its outer ring, be fixed with the spacing seal ring of the nonmetal annular of metal or high strength, can make this composite sealing ring both have very excellent sealing effect, has spacing function again, can increase the mechanical compressive strength of seal ring greatly, use in machine-building or liquid conveying technology field, sealing effect is very reliable.

Four, description of drawings

Accompanying drawing 1 is a kind of example structure schematic representation of the utility model;

Accompanying drawing 2 is that the A-A of the utility model accompanying drawing 1 is to cross-sectional schematic.

Five, embodiment

Now with specific embodiment the utility model is described in further details in conjunction with the accompanying drawings:

A kind of Composite Double seal washer, it is to make annular stop seal ring (1) by metallic material, on the interior ring of annular stop seal ring (1), be fixed with ring-shaped rubber seal ring (2), compound being located at of described rubber seal (2) encircled in the annular stop seal ring (1), ring-shaped rubber seal ring (2) upper and lower surface is provided with annular corrugated, and it is annular corrugated to be that sectional shape at rubber seal (2) upper and lower faces is two zigzag fashion.Annular stop seal ring (1) plays two effects here, and the one, seal; The 2nd, play limit function, when metal docks with metal when being expressed to a certain degree, can not push again behind the position that reaches capacity, guaranteed that the soft rubber seal ring is safe and reliable in using process.The ripple sectional shape of rubber seal (2) top and bottom is a zigzag fashion, can play the effect of double-layer seal after two sawtooth ripple pushes, and test back sealing effect is very obvious.

Annular stop seal ring (1) also can adopt hard plastics.

Claims

1, a kind of Composite Double seal washer, it is to be made of annular stop seal ring (1), it is characterized in that: in annular stop seal ring (1), be fixed with ring-shaped rubber seal ring (2) on the ring, described ring-shaped rubber seal ring (2) upper and lower surface is provided with annular corrugated, and described annular corrugated its sectional shape is a zigzag fashion.

2, a kind of Composite Double seal washer according to claim 1, it is characterized in that: be located at that ring-shaped rubber seal ring (2) upper and lower surface on the ring is provided with in the annular stop seal ring (1) with concentric annular corrugated of annular stop seal ring (1), the sectional shape of its upper and lower faces is a zigzag fashion.