Novel sealing gasket

Abstract

The utility model provides a novel sealing gasket which is arranged at a screwed plug joint of a workpiece and comprises an annular platform and a boss, the platform and the boss are made of red copper and are subjected to annealing treatment, so that the Vickers hardness of the surfaces of the platform and the boss is not higher than HV45, the platform is matched with the joint surface of a screwed plug, and the platform is matched with the screwed plug. The boss is fixed to the side, away from the screwed plug, of the platform and matched with a sealing groove formed in the workpiece. The non-parallel defect of a plug sealing plane and a workpiece plane is compensated, and the phenomenon of medium leakage caused by insufficient compression amount of a traditional O-shaped sealing ring part between non-parallel matching surfaces is solved; the characteristics of elasticity and plasticity of the annealed red copper are utilized, a certain compression amount is achieved, and media can be effectively blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing, in particular to a novel sealing pad. Background Art

[0002] Due to the processing technology and processing accuracy, the threaded hole and the workpiece plane are not perpendicular during the flange surface processing. This will cause the plug sealing plane and the workpiece plane to be unable to maintain a parallel relationship. After the plug is installed, there is still a gap between the workpiece plane and the plug plane. The O-ring installed in the sealing groove has a local compression that cannot reach the design value, which eventually leads to medium leakage. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a new type of sealing gasket. In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0004] A new type of sealing gasket is arranged at the joint of a screw plug of a workpiece, comprising a circular platform and a boss. The platform and the boss are made of red copper and are annealed so that the surface Vickers hardness of the platform and the boss is not higher than HV45. The platform cooperates with the joint surface of the screw plug, and the boss is fixed on the side of the platform away from the screw plug and cooperates with the sealing groove arranged on the workpiece.

[0005] Furthermore, the platform and the boss are integrally formed.

[0006] Furthermore, the height of the boss is slightly higher than the depth of the sealing groove of the workpiece.

[0007] Furthermore, the cross section of the boss is configured to be rectangular.

[0008] Furthermore, retention grooves are provided on the inner and outer ring sides of the boss.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. It compensates for the non-parallel defect between the plug sealing plane and the workpiece plane, and solves the medium leakage caused by insufficient compression of the traditional O-ring between the non-parallel mating surfaces;

[0011] 2. Taking advantage of the elasticity and plasticity of annealed copper, there is a certain amount of compression, which can effectively block the medium;

[0012] 3. The invention has a simple structure and is easy to process. It is suitable for sealing grooves of various models and specifications and has a wide range of applications and great practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a top view schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 It is a sectional assembly structure schematic diagram of an embodiment of the present utility model.

[0016] In the above-mentioned drawings: workpiece 1, sealing groove 2, plug 3, platform 4, boss 5, interception groove 6. Specific embodiments

[0017] The technical solutions in the present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Please refer to Figure 1 , Figure 2 As shown, a new type of gasket is provided at the joint of the plug 3 of the workpiece 1, including an annular platform 4 and a boss 5. The platform 4 and the boss 5 are made of copper and are annealed so that the surface Vickers hardness of the platform 4 and the boss 5 is not higher than HV45. The joint surface of the platform 4 cooperates with the plug 3, and the boss 5 is fixed on the side of the platform 4 away from the plug 3 and cooperates with the sealing groove 2 provided on the workpiece 1.

[0019] The gasket is placed at the plug 3 of the workpiece 1. The platform 4 compensates for the non-parallel defect between the sealing plane of the plug 3 and the plane of the workpiece 1. Utilizing the elasticity and plasticity of annealed copper, it has a certain compression amount and can effectively block the medium, solving the problem of medium leakage caused by insufficient compression amount of the traditional O-ring between non-parallel mating surfaces.

[0020] In this embodiment, the platform 4 and the boss 5 are integrally formed, which is convenient for manufacturing and annealing treatment and is easy to use.

[0021] In this embodiment, please refer to Figure 2 As shown, the height of the boss 5 is slightly higher than the depth of the sealing groove 2 of the workpiece 1, so that the boss 5 can fill the sealing groove 2 of the workpiece 1 when compressed, improving the sealing effect.

[0022] In this embodiment, please refer to Figure 2 As shown, the cross-section of the boss 5 is set to be rectangular, which is convenient for manufacturing the sealing ring and assembling while ensuring the sealing performance.

[0023] In this embodiment, please refer to Figure 2 As shown, interception grooves 6 are provided on the inner and outer ring side surfaces of the boss 5. The interception grooves 6 provide a certain compression space for the compression of the boss 5 and are used to intercept liquid to improve the sealing performance.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A new type of gasket is provided at the plug joint of the workpiece, characterized in that, It includes an annular platform and a boss. The platform and the boss are made of copper and are annealed so that the surface Vickers hardness of the platform and the boss is not higher than HV45. The platform is matched with the joint surface of the plug. The boss is fixed on the side of the platform away from the plug and is matched with the sealing groove provided on the workpiece.

2. The novel gasket according to claim 1, characterized in that: The platform and the boss are integrally formed.

3. The novel gasket according to claim 1, wherein: The height of the boss is slightly higher than the depth of the sealing groove of the workpiece.

4. A novel gasket according to claim 1, characterized in that: The cross-section of the boss is set as a rectangle.

5. A novel gasket according to claim 1, characterized in that: Retention grooves are provided on the inner and outer ring side surfaces of the boss.

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