CN218992334U

CN218992334U - Double-seal soft metal pad

Info

Publication number: CN218992334U
Application number: CN202320181627.6U
Authority: CN
Inventors: 霍均祥
Original assignee: CHENGDU JUNYING SEALING MATERIALS CO LTD
Current assignee: CHENGDU JUNYING SEALING MATERIALS CO LTD
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-05-09
Anticipated expiration: 2033-02-03

Abstract

The utility model belongs to the technical field of sealing gaskets, and discloses a double-sealing soft metal gasket, wherein a first metal shell is of an annular structure, one side of the first metal shell is closed, the other side of the first metal shell is provided with a first opening, the waist of the first metal shell is provided with a first annular groove which is sunken towards the inner side of the first metal shell, and metal and/or nonmetal sealing mediums are filled in the first metal shell; the first metal plate is arranged at the first opening; the second metal shell is of an annular structure, two sides of the second metal shell are provided with a second opening and a third opening, a nonmetallic sealing medium is filled in the second metal shell, and one side of the second metal shell, where the second opening is arranged, is connected with one side of the first metal shell, where the first opening is arranged; the second metal plate is arranged at the third opening. The gasket disclosed by the utility model can enhance the elasticity of the gasket, so that the gasket contacts a workpiece more fully than a traditional sealing gasket, and the tightness is better.

Description

Double-seal soft metal pad

Technical Field

The utility model belongs to the technical field of sealing gaskets, and particularly relates to a double-sealing soft metal pad.

Background

A gasket is a part used to fill the gap between two workpiece surfaces that are in contact with each other. After the transitional connection by the sealing gasket, the two workpieces can be joined to each other without leakage even when subjected to compressive forces.

At present, due to the self characteristics of the traditional sealing gasket, the elastic effect is poor, capillary holes and slight scratches on a workpiece cannot be plugged, and therefore the sealing performance is poor.

Disclosure of Invention

In order to solve the technical problems, the utility model discloses a double-seal soft metal pad which can strengthen elasticity of a pad, so that the pad can fully contact a workpiece compared with a traditional seal pad, and the tightness is better.

The specific technical scheme of the utility model is as follows:

a dual seal soft metal pad comprising:

the waist part of the first metal shell is provided with a first annular groove which is sunken towards the inner side of the first metal shell, and metal and/or nonmetal sealing media are filled in the first metal shell;

the first metal plate is arranged at the first opening and is used for sealing the first metal shell;

the second metal shell is of an annular structure, two sides of the second metal shell are provided with a second opening and a third opening, nonmetal sealing media are filled in the second metal shell, and one side of the second metal shell, where the second opening is arranged, is connected with one side of the first metal shell, where the first opening is arranged; and

the second metal plate is arranged at the third opening and is used for being matched with the first metal plate to seal the second metal shell.

Preferably, the waist portion of the second metal shell has a second ring groove recessed toward the inner side thereof.

Preferably, the groove walls of the first groove and the second groove are acute angles.

Preferably, the bottoms of the first annular groove and the second annular groove are sharp; or (b)

The bottoms of the first annular groove and the second annular groove are both approximate to a sharp shape.

Preferably, the second metal shell is welded to the first metal shell; or (b)

The second metal shell and the first metal shell are integrally formed.

Preferably, the middle part of the first metal plate is bent towards the second metal plate to form an arch structure.

Preferably, the side of the first metal shell provided with the first opening is provided with a first flanging which faces inwards; the excircle of the first metal plate is welded on the inner side of the first flanging.

Preferably, the side of the second metal shell provided with the third opening is provided with a second flanging which faces inwards; the excircle of the second metal plate is welded on the inner side of the second flanging.

Preferably, the outer ring of the first metal shell is arranged on the positioning ring.

Preferably, the inner ring of the first metal shell is arranged on the rib.

Compared with the prior art, the utility model effectively fills capillary holes and/or slight scratches on the workpiece by utilizing the contact workpiece with changed stress shape on the basis of keeping the structural strength of the first metal shell and the second metal shell, thereby better realizing sealing; according to the utility model, the first annular groove and the second annular groove are matched with each other, so that after the metal pad is subjected to pretightening force, buffer pressure can be realized, and therefore, on the basis of welding the first metal shell and the second metal shell, a welding seam cannot be broken, so that leakage of sealing media of the first metal shell and/or the second metal shell is avoided, corrosion or oxidation of the first metal shell and/or the second metal shell is avoided, sealing durability is improved, and service life is prolonged.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is a schematic diagram illustrating the arrangement of ribs in an embodiment of the present utility model.

In the figure: 1-a first metal housing; 2-a first metal plate; 3-a second metal housing; 4-a second metal plate; 5-a first ring groove; 6-a second ring groove; 7-positioning rings; 8-ribs.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.

As shown in fig. 1 to 2, a double-sealed soft metal pad includes a first metal case 1, a first metal plate 2, a second metal case 3, and a second metal plate 4; the first metal shell 1 is of an annular structure, one side of the first metal shell is closed, the other side of the first metal shell is provided with a first opening, the waist of the first metal shell 1 is provided with a first annular groove 5 which is sunken towards the inner side of the first metal shell, and the first metal shell 1 is filled with metal and/or nonmetal sealing media; the first metal plate 2 is arranged at the first opening and is used for sealing the first metal shell 1; the second metal shell 3 is in an annular structure, two sides of the second metal shell are provided with a second opening and a third opening, a nonmetallic sealing medium is filled in the second metal shell 3, and one side of the second metal shell 3 provided with the second opening is connected with one side of the first metal shell 1 provided with the first opening; the second metal plate 4 is disposed at the third opening and is used to seal the second metal housing 3 in cooperation with the first metal plate 2.

In this embodiment, the first metal casing 1 has a certain strength, and on this basis, the waist portion of the first metal casing is provided with the first annular groove 5, so that when the first annular groove is subjected to the pretightening force, the first annular groove not only can fully fill the capillary holes and/or the slight scratches of the workpiece, but also can realize pressure relief when the first annular groove is subjected to the relatively large pretightening force, and the leakage of the sealing medium in the first metal casing 1 is avoided.

Specifically, in this embodiment, the groove walls of the first ring groove 5 are acute angles, and the groove bottoms of the first ring groove 5 are sharp. On the basis, one side of the first metal shell 1 provided with the first opening is provided with a first flanging which faces inwards; the outer circle of the first metal plate 2 is welded on the inner side of the first flanging.

Thus, the outer circumferential wall of the first metal shell 1 has a substantially "Σ" shape.

In this embodiment, the first metal plate 2 is connected to the first opening by welding, and is located inside the first metal casing 1.

Therefore, the outer edge of the first metal plate 2 is covered at the first flanging, so that the sealing performance of the welding line is better improved, the sealing medium leakage in the first metal shell 1 caused by the occurrence of cracks of the welding line is effectively avoided, and the sealing failure is further avoided.

It follows that when the first metal shell 1 is subjected to a large pretightening force, the specific structure of the first annular groove 5 prevents the occurrence of cracks in the weld joint.

In some embodiments, the above effect can be achieved as well when the groove bottom of the first ring groove 5 approaches a sharp shape.

For better use of the present embodiment, the waist portion of the second metal shell 3 has a second ring groove 6 recessed toward the inside thereof.

The second metal shell 3 is filled with nonmetallic materials, and the workpiece can be better attached to the workpiece on the basis that the second metal shell 3 is provided with the second annular groove 6, so that capillary holes and/or slight scratches on the workpiece can be filled.

Similarly to the first ring groove 5, the groove wall of the second ring groove 6 is acute, and the groove bottom of the second ring groove 6 is sharp.

Likewise, in other embodiments, the groove bottom of the second ring groove 6 approaches a sharp shape.

For better use of the present embodiment, the second metal casing 3 is welded to the first metal casing 1.

The first opening of the first metal shell 1 is provided with an end face, the second opening of the second metal shell 3 is also provided with an end face, and the two end faces are bonded and welded to realize stable connection of the first metal shell 1 and the second metal shell 3.

On the basis of the arrangement of the first annular groove 5 and the second annular groove 6, even if a large pretightening force is applied, the weld joint between the first metal shell 1 and the second metal shell 3 is not cracked.

In other embodiments, the second metal housing 3 is integrally formed with the first metal housing 1.

For better use of the present embodiment, the middle part of the first metal plate 2 is bent towards the second metal plate 4 in an arch structure.

In this embodiment, the first metal plate 2 is in an upper arc shape, when the second metal shell 3 is pressed, the sealing medium in the second metal shell is deformed by the deformation of the second ring groove 6, so that the sealing medium in the second metal shell is extruded to deform the first metal plate 2, and the first ring groove 5 of the first metal shell 1 is matched with the deformation of the first metal shell, so that the sealing medium in the first metal shell 1 is extruded better, and the filling of the capillary holes and/or slight scratches of a workpiece is satisfied better.

For better use of the embodiment, the side of the second metal shell 3 provided with the third opening is provided with a second flanging which faces inwards; the outer circle of the second metal plate 4 is welded on the inner side of the second flanging.

The second flanging can enable the second metal plate 4 to be welded to the third opening of the second metal shell 3 better, so that leakage of sealing medium in the second metal shell 3 caused by cracking of a welding seam at the second metal plate 4 after being pressed is avoided.

For better use of the present embodiment, the outer ring of the first metal casing 1 is disposed on the positioning ring 7.

The positioning ring 7 enables the double-seal soft metal pad to be located at the center of the workpiece installation hole site, so that good tightness is achieved on the basis of convenient installation.

For better use of the present embodiment, the inner ring of the first metal shell 1 is disposed on the rib 8.

The ribs 8 can provide the overall strength of the dual seal soft metal pad and are suitable for different application requirements.

Therefore, the double-seal soft metal pad in the embodiment can effectively fill capillary holes and/or slight scratches on a workpiece, so that a good sealing effect is achieved, and leakage cannot occur even if water pressure is applied; in addition, the pre-tightening force can be reduced, the labor intensity of workers is reduced, the welding seams of the first metal shell 1 and the second metal shell 3 are prevented from being pulled apart, any metal shell is thoroughly isolated from a sealing medium in the metal shell, the first metal shell 1 and/or the second metal shell 3 are prevented from being corroded or oxidized, the sealing durability is improved, and the service life is prolonged. Therefore, the embodiment has the characteristics of high and low temperature resistance, high and low pressure resistance and good rebound resilience.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. A dual seal soft metal pad comprising:

2. The dual seal soft metal gasket of claim 1, wherein the waist portion of the second metal shell has a second annular groove recessed toward the inside thereof.

3. The dual seal soft metal gasket of claim 2 wherein the walls of said first and second grooves are each at an acute angle.

4. A dual seal soft metal gasket as defined in claim 3, wherein the bottoms of said first and second ring grooves are sharp; or (b)

5. A dual seal soft metal pad as defined in claim 2, wherein said second metal shell is welded to said first metal shell; or (b)

The second metal shell and the first metal shell are integrally formed.

6. A dual seal soft metal pad as defined in claim 2, wherein the central portion of the first metal sheet is curved toward the second metal sheet in an arch-like configuration.

7. The double-seal soft metal gasket of claim 1, wherein the side of the first metal shell provided with the first opening is provided with a first inward flanging; the excircle of the first metal plate is welded on the inner side of the first flanging.

8. The double-seal soft metal gasket of claim 1, wherein the second metal shell has an inwardly facing second flange on the side of the third opening; the excircle of the second metal plate is welded on the inner side of the second flanging.

9. The dual seal soft metal pad of claim 1, wherein the outer ring of the first metal housing is disposed on a retaining ring.

10. The dual seal soft metal gasket of claim 1, wherein the inner ring of the first metal shell is disposed on the ribs.