Novel sealing washer

Abstract

The utility model discloses a novel sealing washer which comprises a metal shell, a hydrogenated butadiene-acrylonitrile rubber inner ring and protrusions, the hydrogenated butadiene-acrylonitrile rubber inner ring is of a cross-shaped structure, the bottom of the hydrogenated butadiene-acrylonitrile rubber inner ring is embedded into an inner groove of the metal shell, and the protrusions on the two sides of the hydrogenated butadiene-acrylonitrile rubber inner ring are symmetrically distributed on the two sides of the metal shell. The utility model has the characteristics of simple and stable structure and uniform stress.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sealing gasket, especially a new sealing gasket. BACKGROUND

[0002] The sealing gasket is an important element for preventing fluid leakage in the mechanical field, and is divided into metal gaskets, non-metal gaskets and composite material gaskets according to different materials and structures. The composite material gasket combines the advantages of metal and non-metal materials, and is widely used in occasions with high sealing performance. However, the combination of non-metal materials and metal materials, the stress of the two materials is mutually influenced, and there is an unstable problem.

[0003] Therefore, it is necessary to develop a new sealing gasket for improving stability. UTILITY MODEL CONTENT

[0004] The utility model discloses a new sealing gasket, which has the characteristics of simple structure, stability and uniform stress.

[0005] Technical scheme: the utility model discloses a new sealing gasket, which has the characteristics of simple structure, stability and uniform stress.

[0006] The metal shell is provided with a groove for fixing the hydrogenated nitrile rubber inner ring.

[0007] The middle part of the hydrogenated nitrile rubber inner ring is used for fastening.

[0008] The hydrogenated nitrile rubber inner ring and the internal groove of the metal shell are correspondingly arranged.

[0009] Advantages: compared with the prior art, the utility model has the following remarkable advantages: the utility model has the characteristics of simple structure, stability and uniform stress. DRAWING EXPLANATION

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a side view structural schematic diagram of the utility model;

[0012] Figure 3 It is a front view structural schematic diagram of the utility model;

[0013] Figure 4 It is a sectional view structural schematic diagram of the utility model;

[0014] Fig. 1 is a metal shell; 2 is a hydrogenated nitrile rubber inner ring; 3 is a protrusion. DETAILED DESCRIPTION

[0015] The technical scheme of the utility model is further described below in combination with the drawings and specific embodiments.

[0016] The novel sealing gasket comprises a metal shell 1, a hydrogenated nitrile rubber inner ring 2 and a protrusion 3, the hydrogenated nitrile rubber inner ring 2 is of a cross-shaped structure, the hydrogenated nitrile rubber inner ring 2 is embedded in an inner groove of the metal shell 1 at the bottom, and the protrusions 3 on both sides of the hydrogenated nitrile rubber inner ring 2 are symmetrically distributed on both sides of the metal shell 1.

[0017] The metal shell 1 is provided with a groove for fixing the hydrogenated nitrile rubber inner ring 2, and the middle part of the hydrogenated nitrile rubber inner ring 2 is used for passing through a fastener.

[0018] The metal shell 1: a. bears the front compression force, and the plastic deformation of the metal shell 1 balances the compression force; b. the inner groove of the metal shell 1 limits the rubber ring, so that slippage does not occur in the use process.

[0019] In use, when the fastener is screwed through the hydrogenated nitrile rubber inner ring 2, the groove of the metal shell 1 fixes the rubber ring, so that the rubber ring is stable and does not slip. When the sealing gasket is in a working state, that is, the contact surfaces on both sides of the sealing gasket are extruded, the materials of the protrusions on both sides of the rubber inner ring are extruded to the inside, the rubber material is prevented from adhering to the contact surfaces on both sides, the metal ring bears the front compression force, and the sealing effect is ensured.

Claims

1. A novel sealing gasket, characterized in that: It includes a metal shell (1), a hydrogenated nitrile rubber inner ring (2) and protrusions (3). The hydrogenated nitrile rubber inner ring (2) has a cross-shaped structure. The bottom of the hydrogenated nitrile rubber inner ring (2) is embedded in the internal groove of the metal shell (1). The protrusions (3) on both sides of the hydrogenated nitrile rubber inner ring (2) are symmetrically distributed on both sides of the metal shell (1).

2. The novel sealing gasket according to claim 1, characterized in that: The metal casing (1) is provided with a groove for fixing the hydrogenated nitrile rubber inner ring (2).

3. The novel sealing gasket according to claim 1, characterized in that: The middle part of the hydrogenated nitrile rubber inner ring (2) is used for fasteners to pass through.

4. The novel sealing gasket according to claim 1, characterized in that: The hydrogenated nitrile rubber inner ring (2) is provided in correspondence with the internal groove of the metal outer shell (1).

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