Anti-aging rubber sealing ring

Abstract

The utility model discloses an anti-aging rubber sealing ring, which relates to the technical field of rubber sealing rings and comprises a sealing rubber ring, grooves are arranged on the upper surface and the lower surface of the sealing rubber ring, an inner ring is arranged in the sealing rubber ring, a containing cavity is arranged in the sealing rubber ring, a springback mechanism is arranged in the containing cavity, and the inner ring and the containing cavity are arranged in the grooves. The springback mechanism comprises a rhombic elastic piece arranged in the containing cavity, and an elastic cavity is formed in the rhombic elastic piece. Compared with an existing common rubber sealing ring, the aging-resistant rubber sealing ring has the advantages that when the sealing rubber ring is extruded, the pull-back elastic piece in the containing cavity can provide a good springback effect, when the sealing rubber ring is reset, the pull-back elastic piece clamped in the pull-back groove can provide reset force for the rhombic elastic piece through the pull ring, the elastic cavity provides a good stroke compression range, and the service life of the rubber sealing ring is prolonged. The round corners can prevent the edges and corners of the rhombic elastic piece from damaging the sealing rubber ring, and the design can achieve a good elastic reset effect.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing rings, in particular to an aging-resistant rubber sealing ring. Background Art

[0002] Sealing rings can seal the connection parts of objects or machinery to prevent leakage of media. Sealing rings of different materials and shapes can be used in different places. Sealing rings are widely used and can be used in different fields such as hardware and plastics, water supply and drainage, HVAC, fire protection and automobiles.

[0003] For example, the public document with application number 202320560982.4 discloses a fluororubber sealing ring. The utility model sets a first solid block, a first hollow block, a second solid block and a second hollow block in the fluororubber sealing ring, thereby increasing the contact area between the two fluororubber sealing rings due to the deformation caused by the mutual extrusion of the two fluororubber sealing rings, thereby improving the sealing between the two fluororubber sealing rings. However, the elastic tension of the rubber sealing ring itself is limited. Repeated operation relying solely on the elastic force of the rubber ring itself can easily cause the rubber to lose durability, thereby causing aging.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an aging-resistant rubber sealing ring is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an aging-resistant rubber sealing ring to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aging-resistant rubber sealing ring, comprising a sealing rubber ring, wherein the upper surface and the lower surface of the sealing rubber ring are both provided with grooves, the interior of the sealing rubber ring is provided with an inner ring, the interior of the sealing rubber ring is provided with a cavity, and the interior of the cavity is provided with a rebound mechanism.

[0007] Preferably, the rebound mechanism comprises a diamond-shaped spring piece arranged inside the cavity, an elastic cavity is provided inside the diamond-shaped spring piece, and the upper and lower surfaces of the diamond-shaped spring piece are both provided with rounded corners.

[0008] Preferably, pull-back grooves are provided on both sides of the cavity, and pull rings are fixedly connected to the inner and outer sides of the diamond-shaped spring pieces.

[0009] Preferably, the inner and outer sides of the pull ring are fixedly connected with pull-back spring pieces, and the pull-back spring pieces are vertically clamped in the pull-back grooves.

[0010] Preferably, the sealing rubber ring includes an EPDM rubber layer arranged on the outermost side.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a sealing rubber ring, a groove, an inner ring, a cavity, a pull-back groove, a rebound mechanism, a diamond-shaped spring piece, a pull ring, a pull-back spring piece, an elastic cavity, and rounded corners. When the sealing rubber ring is squeezed, the pull-back spring piece in the cavity can provide a good rebound effect. When resetting, the pull-back spring piece stuck in the pull-back groove can provide a reset force for the diamond-shaped spring piece through the pull ring. The elastic cavity provides a good stroke compression range. The rounded corners can prevent the edges and corners of the diamond-shaped spring piece from damaging the sealing rubber ring. This design can improve the anti-aging property through a good elastic reset effect.

[0013] 2. The utility model arranges an EPDM rubber layer, a mixed rubber layer and a chloroprene rubber layer. The EPDM rubber layer is located at the outer layer and has good anti-aging properties. The mixed rubber layer improves product performance. The chloroprene rubber layer is not afraid of severe distortion and enhances compatibility with the internal diamond-shaped springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0016] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of some three-dimensional structures.

[0018] In the figure: 1, sealing rubber ring; 11, EPDM rubber layer; 2, groove; 21, inner ring; 3, cavity; 31, pull-back groove; 4, rebound mechanism; 41, diamond-shaped spring piece; 411, pull ring; 412, pull-back spring piece; 42, elastic cavity; 43, rounded corner. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 4As shown, an aging-resistant rubber sealing ring comprises a sealing rubber ring 1, wherein the upper and lower surfaces of the sealing rubber ring 1 are provided with grooves 2, an inner ring 21 is provided inside the sealing rubber ring 1, a cavity 3 is provided inside the sealing rubber ring 1, a rebound mechanism 4 is provided inside the cavity 3, the groove 2 can be provided according to the actual fitting surface of the workpiece connection, the rebound mechanism 4 comprises a rhombus-shaped spring piece 41 provided inside the cavity 3, an elastic cavity 42 is provided inside the rhombus-shaped spring piece 41, rounded corners 43 are provided on the upper and lower surfaces of the rhombus-shaped spring piece 41, and the rounded corners 43 are provided so as not to break the basic elastic force of the rhombus-shaped spring piece 41, pull-back grooves 31 are provided on both sides of the cavity 3, and the inner and outer sides of the rhombus-shaped spring piece 41 are both solid. A pull ring 411 is fixedly connected, and the opening of the cavity 3 is preferably to fit the shape of the diamond-shaped spring piece 41. The inner and outer sides of the pull ring 411 are fixedly connected with a pull-back spring piece 412, and the pull-back spring piece 412 is vertically clamped in the pull-back groove 31. The pull-back spring piece 412 has good resilience and can undergo good elastic deformation. When the sealing rubber ring 1 is squeezed, the pull-back spring piece 412 in the cavity 3 can provide a good rebound effect. When resetting, the pull-back spring piece 412 clamped in the pull-back groove 31 can provide a reset force for the diamond-shaped spring piece 41 through the pull ring 411. The elastic cavity 42 provides a good stroke compression range, and the rounded corners 43 can prevent the edges of the diamond-shaped spring piece 41 from damaging the sealing rubber ring 1.

[0021] like Figure 3 As shown, the sealing rubber ring 1 includes an EPDM rubber layer 11 disposed on the outermost portion. The EPDM rubber layer 11 is copolymerized from ethylene and propylene and has good heat resistance, aging resistance, ozone resistance and stability.

[0022] Working principle: When using the aging-resistant rubber sealing ring, first, when the sealing rubber ring 1 is squeezed, the pull-back spring piece 412 in the cavity 3 can provide a good rebound effect. When resetting, the pull-back spring piece 412 stuck in the pull-back groove 31 can provide a reset force for the diamond spring piece 41 through the pull ring 411. The elastic cavity 42 provides a good stroke compression range. The rounded corners 43 can prevent the edges and corners of the diamond spring piece 41 from damaging the sealing rubber ring 1. The EPDM rubber layer 11 is located on the outer layer and has good aging resistance, which enhances the compatibility with the internal diamond spring piece 41. This is the working principle of the aging-resistant rubber sealing ring.

Claims

1. An aging-resistant rubber sealing ring, comprising a sealing rubber ring (1), characterized in that: The upper surface and the lower surface of the sealing rubber ring (1) are both provided with grooves (2), the interior of the sealing rubber ring (1) is provided with an inner ring (21), the interior of the sealing rubber ring (1) is provided with a cavity (3), and the interior of the cavity (3) is provided with a rebound mechanism (4).

2. The aging-resistant rubber sealing ring according to claim 1, characterized in that: The rebound mechanism (4) comprises a rhombus-shaped spring piece (41) arranged inside the cavity (3), an elastic cavity (42) is provided inside the rhombus-shaped spring piece (41), and rounded corners (43) are provided on the upper and lower surfaces of the rhombus-shaped spring piece (41).

3. The aging-resistant rubber sealing ring according to claim 2, characterized in that: Pull-back grooves (31) are provided on both sides of the cavity (3), and pull rings (411) are fixedly connected to the inner and outer sides of the diamond-shaped spring sheet (41).

4. The aging-resistant rubber sealing ring according to claim 3, characterized in that: The inner and outer sides of the pull ring (411) are fixedly connected with a pull-back spring sheet (412), and the pull-back spring sheet (412) is vertically clamped in the pull-back groove (31).

5. The aging-resistant rubber sealing ring according to claim 1, characterized in that: The sealing rubber ring (1) comprises an EPDM rubber layer (11) arranged on the outermost portion.

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