CN212377490U

CN212377490U - Sealing washer

Info

Publication number: CN212377490U
Application number: CN202020897480.7U
Authority: CN
Inventors: 陈海斌
Original assignee: Zhuji Hengqiang Machinery Co ltd
Current assignee: Zhuji Hengqiang Machinery Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-19
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a machine parts especially relates to a seal ring. The sealing washer comprises an annular base body and a through hole penetrating through the base body, wherein the base body comprises an inner ring piece and an outer ring piece, the outer ring piece is arranged on the outer edge of the inner ring piece, a reinforcing device is arranged between the inner ring piece and the outer ring piece, and the strength of the inner ring piece is greater than that of the inner ring piece. Through the design of inner ring piece and outer ring piece, can be convenient for when packing ring installation pressure is too big to the judgement of packing ring state. The connection of the inner ring piece and the outer ring piece is stable, and the structure of the whole gasket is stable. The annular convex edge, the annular groove and the elastic ring can ensure the sealing performance of the gasket and the fixation stability of the gasket.

Description

Sealing washer

Technical Field

The utility model belongs to the machine parts field especially relates to a seal ring.

Background

Gaskets are typically placed between two segments of fluid conduit to seal the joint between the two segments. The two pipelines are usually connected through threads, and if the force is applied too much during connection, the gasket is easily damaged, and the sealing performance of the pipelines is affected. And meanwhile, the state of the gasket is difficult to observe during connection, and whether the gasket is damaged or not is judged. There is a need for a gasket having good sealing properties while also facilitating the determination of the condition.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide a have higher mechanical strength and good sealing performance also conveniently judge the packing ring of state simultaneously.

The purpose of the utility model is realized like this: a sealing washer comprises an annular base body and a through hole penetrating through the base body, wherein the base body comprises an inner ring piece and an outer ring piece, the outer ring piece is arranged on the outer edge of the inner ring piece, a reinforcing device is arranged between the inner ring piece and the outer ring piece, and the strength of the inner ring piece is greater than that of the inner ring piece.

By adopting the technical scheme, the outer ring piece and the inner ring piece are made of the same material, and the deformation of the outer ring piece and the inner ring piece generated by the same pressure is the same under the same strength. Set up the weakening portion on the outer ring piece, make the structural strength of outer ring piece be less than the structural strength of inner ring piece, the outer ring piece becomes excessive earlier than the inner ring piece when pipe connection pressure constantly increases, produces damage such as fracture, because outer ring piece sets up at the outer edge of inner ring piece, for the outermost circle of whole gasket, can be convenient for observe the damaged condition of outer ring piece to judge the holistic state of packing ring.

The utility model discloses further set up to: the reinforcing device comprises a plurality of clamping blocks and a plurality of clamping grooves corresponding to the clamping blocks, the clamping grooves are arranged on one side, close to the outer ring piece, of the inner ring piece, and the clamping grooves are arranged on one side, close to the inner ring piece, of the outer ring piece.

Through adopting above-mentioned technical scheme, the screens piece is the rubber material, has good elasticity. The clamping block extrudes and clamps in the clamping groove through the elasticity of the clamping block, and the connection strength of the inner ring piece and the outer ring piece can be ensured.

The utility model discloses further set up to: one end face of the inner ring piece is provided with an annular convex edge concentric with the inner ring piece, and the other end face of the inner ring piece is provided with an annular groove corresponding to the annular convex edge.

Through adopting above-mentioned technical scheme, when the pipe connection was to the packing ring application of force, the annular protruding edge took place deformation under the extrusion of pressure, increased with the area of contact of pipeline, guaranteed sealed effect. Meanwhile, the annular groove can be stressed uniformly and corresponds to the annular convex edge, and the structural strength is guaranteed.

The utility model discloses further set up to: the inner edge of the inner ring sheet is provided with elastic rings which respectively protrude towards the two end faces.

Through taking above-mentioned technical scheme, the elastic ring is the rubber material, takes place deformation when receiving the extrusion, fills the pipeline and connects the face and because the produced gap of error that the machining precision caused, further improves the holistic sealing performance of packing ring.

The utility model discloses further set up to: the two end surfaces of the elastic ring are provided with mounting grooves with circular arc sections.

Through adopting above-mentioned technical scheme, the mounting groove of circular-arc cross-section can open to the both ends of circular arc when the packing ring installation receives the extrusion to constitute sucking disc column structure, be favorable to the stability that the packing ring is fixed, the pressure that makes the packing ring receive can evenly distributed, is favorable to the stability of structure.

The utility model has the advantages that:

1. through the design of inner ring piece and outer ring piece, can be convenient for when packing ring installation pressure is too big to the judgement of packing ring state.

2. The connection of the inner ring piece and the outer ring piece is stable, and the structure of the whole gasket is stable.

3. The annular convex edge, the annular groove and the elastic ring can ensure the sealing performance of the gasket and the fixation stability of the gasket.

Drawings

FIG. 1 is a schematic view of a gasket construction;

FIG. 2 is a schematic cross-sectional view of a gasket;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

the reference numbers thereof are: 1. a substrate; 11. an inner ring sheet; 111. an annular convex edge; 112. an annular groove; 113. an elastic ring; 1131. mounting grooves; 12. an outer ring plate; 121. a weakened portion; 13. a reinforcement device; 131. a bit block; 132. a clamping groove; 2. and a through hole.

Detailed Description

In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:

a sealing gasket comprises an annular base body 1 and a through hole 2 penetrating through the base body 1, wherein the base body 1 comprises an inner ring piece 11 and an outer ring piece 12, the outer ring piece 12 is arranged on the outer edge of the inner ring piece 11, a reinforcing device 13 is arranged between the inner ring piece 11 and the outer ring piece 12, and the strength of the inner ring piece 11 is greater than that of the inner ring piece 11. The outer ring segment 12 and the inner ring segment 11 are made of the same material, and the same strain is generated with respect to the same magnitude of pressure at the same strength. Offer on outer ring 12 and cut weak part 121, make the structural strength of outer ring 12 be less than the structural strength of inner ring piece 11, outer ring 12 is excessive in advance inner ring piece 11 deformation when pipe connection pressure constantly increases, produces damage such as fracture, because outer ring 12 sets up the outer edge of inner ring piece 11, for the outermost circle of whole gasket, can be convenient for observe the damaged condition of outer ring 12 to judge the holistic state of packing ring.

The reinforcing device 13 includes a plurality of catching blocks 131 and a plurality of catching grooves 132 corresponding to the catching blocks 131, the catching grooves 132 being disposed on a side of the inner ring piece 11 adjacent to the outer ring piece 12, the catching grooves 132 being disposed on a side of the outer ring piece 12 adjacent to the inner ring piece 11. The retainer block 131 is made of rubber and has good elasticity. The locking piece 131 is pressed and locked in the locking groove 132 by its own elasticity, and the connection strength between the inner ring piece 11 and the outer ring piece 12 can be ensured.

An annular convex edge 111 concentric with the inner ring plate 11 is arranged on one end face of the inner ring plate 11, and an annular groove 112 corresponding to the annular convex edge 111 is arranged on the other end face of the inner ring plate 11. When the pipeline is connected and the force is applied to the gasket, the annular convex edge 111 deforms under the extrusion effect of pressure, the contact area between the annular convex edge and the pipeline is increased, and the sealing effect is guaranteed. Meanwhile, the annular groove 112 can be stressed uniformly and corresponds to the annular convex edge 111 in position, and structural strength is guaranteed.

The inner edge of the inner ring plate 11 is provided with elastic rings 113 which respectively protrude towards the two end faces. The elastic ring 113 is made of rubber, deforms when being extruded, fills a gap generated by an error caused by machining precision of a pipeline connecting surface, and further improves the overall sealing performance of the gasket.

The elastic ring 113 has mounting grooves 1131 with circular arc cross sections on its two end surfaces. The mounting groove 1131 with the circular arc-shaped cross section can be opened towards the two ends of the circular arc when the gasket is mounted and extruded, so that a sucker-shaped structure is formed, the stability of fixing the gasket is facilitated, the pressure applied to the gasket can be uniformly distributed, and the stability of the structure is facilitated.

The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A sealing gasket comprises an annular base body (1) and a through hole (2) penetrating through the base body (1), and is characterized in that the base body (1) comprises an inner ring piece (11) and an outer ring piece (12), the outer ring piece (12) is arranged on the outer edge of the inner ring piece (11), a reinforcing device (13) is arranged between the inner ring piece (11) and the outer ring piece (12), and the strength of the inner ring piece (11) is greater than that of the inner ring piece (11).

2. A sealing gasket according to claim 1, wherein the reinforcing means (13) comprises a plurality of retaining blocks (131) and a plurality of retaining grooves (132) corresponding to the retaining blocks (131), the retaining grooves (132) being disposed on the inner ring segment (11) on the side adjacent to the outer ring segment (12), the retaining grooves (132) being disposed on the outer ring segment (12) on the side adjacent to the inner ring segment (11).

3. The sealing gasket as claimed in claim 1, wherein an annular convex edge (111) concentric with the inner ring sheet (11) is arranged on one end surface of the inner ring sheet (11), and an annular groove (112) corresponding to the position of the annular convex edge (111) is arranged on the other end surface of the inner ring sheet (11).

4. A sealing gasket according to claim 1, characterised in that the inner edge of the inner ring plate (11) is provided with elastic rings (113) projecting towards both end faces respectively.

5. A sealing gasket according to claim 4, characterized in that the two end faces of the elastic ring (113) are provided with mounting grooves (1131) with circular arc-shaped cross-sections.