Elastic O-shaped ring

Abstract

The utility model relates to the technical field of sealing rings, and discloses an elastic O-shaped ring which comprises a rubber inner ring, a plurality of movable rods are arranged on the outer surface of the rubber inner ring in an annular array mode, springs are arranged at the outer ends of the movable rods, and silica gel outer rings are arranged at the outer ends of the movable rods and the springs. The silica gel outer ring is connected with the multiple sets of movable rods and the springs through mold injection molding. The movable rods are arranged on the outer surface of the rubber inner ring in the annular array mode, the springs are arranged at the outer ends of the movable rods, the silica gel outer ring is arranged at the outer ends of the movable rods and the springs in an injection molding mode through a mold, and when the elasticity of the silica gel outer ring is reduced due to abrasion, the silica gel outer ring shrinks, and therefore the elastic performance of the rubber inner ring is improved. Meanwhile, the spring at the outer end of the movable rod enables the silica gel outer ring to expand outwards through the bounce of the spring, so that the situation that the sealing performance of the silica gel outer ring is reduced due to abrasion and shrinkage of the silica gel outer ring can be avoided, and the service life of the sealing ring is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to an elastic O-ring. Background Technology

[0002] O-rings are crucial sealing elements in large equipment such as aerospace and marine equipment, ensuring the sealing performance and reliability of the equipment. During operation, aerospace and marine equipment may experience complex conditions such as vibration, shock, and high pressure; O-rings need to be able to adapt to these conditions and maintain reliable sealing.

[0003] Because O-rings for large equipment such as aerospace and ships typically require a long service life, and traditional O-rings are mostly injection molded from rubber materials, they are difficult to support a long service life.

[0004] Therefore, those skilled in the art have provided an elastic O-ring to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an elastic O-ring. Multiple sets of movable rods are arranged in a ring array on the outer surface of the rubber inner ring, and each set of movable rods has a spring at its outer end. A silicone outer ring is injection molded onto the outer ends of the movable rods and springs. When the elasticity of the silicone outer ring decreases due to wear, the silicone outer ring will shrink. Simultaneously, the springs at the outer ends of the movable rods will expand the silicone outer ring outwards through their rebound force, thus preventing the silicone outer ring from wearing down and shrinking, which would reduce its sealing performance and further improve the service life of the sealing ring.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An elastic O-ring includes a rubber inner ring, a plurality of movable rods arranged in a ring array on the outer surface of the rubber inner ring, and a spring provided at the outer end of each of the movable rods. A silicone outer ring is provided at the outer end of the movable rods and the springs. The silicone outer ring is connected to the plurality of movable rods and the springs by injection molding.

[0008] Through the above technical solution, multiple sets of movable rods are arranged in a ring array on the outer surface of the rubber inner ring, and springs are provided at the outer ends of the multiple sets of movable rods. A silicone outer ring is injection molded at the outer ends of the multiple sets of movable rods and springs. When the elasticity of the silicone outer ring decreases due to wear, the silicone outer ring will shrink. At the same time, the springs at the outer ends of the movable rods will expand the silicone outer ring outward through the spring's rebound force, thereby avoiding the situation where the silicone outer ring wears and shrinks, which leads to a decrease in its sealing performance, and further improving the service life of the sealing ring.

[0009] Furthermore, the multiple sets of the movable rods and springs are all formed by a circular array of individual movable rods and springs around the coarse circumference of the inner ring of the rubber;

[0010] Through the above technical solution, multiple sets of movable rods and springs are formed by a circular array of individual movable rods and springs around the coarse circumference of the inner ring of the rubber, which can make the movable rods and springs evenly distributed.

[0011] Furthermore, the outer surface of the silicone outer ring is coated with an epoxy resin coating;

[0012] The above technical solution involves coating the outer surface of the silicone outer ring with an epoxy resin coating. Epoxy resin has good insulation properties, chemical corrosion resistance, and mechanical strength, which can improve the insulation and protective performance of the O-ring.

[0013] Furthermore, the inner surface of the silicone outer ring is coated with a ceramic coating;

[0014] The above technical solution involves coating the inner surface of the silicone outer ring with a ceramic coating. The ceramic coating has good wear resistance, insulation, and heat resistance, which can further improve the performance of the O-ring in complex operating environments.

[0015] This utility model has the following beneficial effects:

[0016] 1. The present invention proposes an elastic O-ring, wherein multiple sets of movable rods are arranged in a ring array on the outer surface of the rubber inner ring, and each set of movable rods is provided with a spring at its outer end. A silicone outer ring is injection molded onto the outer ends of the multiple sets of movable rods and springs. When the elasticity of the silicone outer ring decreases due to wear, the silicone outer ring will shrink. At the same time, the spring at the outer end of the movable rod will expand the silicone outer ring outward through the spring's rebound force, thereby avoiding the situation where the silicone outer ring wears and shrinks, which leads to a decrease in its sealing performance, and further improving the service life of the sealing ring.

[0017] 2. The elastic O-ring proposed in this utility model has an epoxy resin coating on the outer surface of the silicone outer ring. Epoxy resin has good insulation properties, chemical corrosion resistance and mechanical strength, which can improve the insulation and protection performance of the O-ring. At the same time, a ceramic coating is coated on the inner surface of the silicone outer ring. The ceramic coating has good wear resistance, insulation properties and heat resistance, which can further improve the performance of the O-ring in complex use environments. Attached Figure Description

[0018] Figure 1 This is an internal isometric view of an elastic O-ring proposed in this utility model;

[0019] Figure 2This is an orthographic projection of an elastic O-ring proposed in this utility model;

[0020] Figure 3 This is a cross-sectional view of an elastic O-ring proposed in this utility model;

[0021] Figure 4 This is an internal front view of an elastic O-ring proposed in this utility model;

[0022] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. Rubber inner ring; 2. Movable rod; 3. Spring; 4. Silicone outer ring; 5. Epoxy resin coating; 6. Ceramic coating. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1-5 This utility model provides an embodiment of an elastic O-ring, comprising a rubber inner ring 1, with multiple sets of movable rods 2 arranged in a ring array on the outer surface of the rubber inner ring 1, and each set of movable rods 2 having a spring 3 at its outer end. A silicone outer ring 4 is provided at the outer ends of the multiple sets of movable rods 2 and springs 3. The silicone outer ring 4 is connected to the multiple sets of movable rods 2 and springs 3 by injection molding. When the elasticity of the silicone outer ring 4 decreases due to wear, the silicone outer ring 4 will shrink. Simultaneously, the springs 3 at the outer ends of the movable rods 2 will expand the silicone outer ring 4 outwards through the spring's rebound force, thereby preventing the silicone outer ring 4 from shrinking due to wear and causing a decrease in its sealing performance, further improving the service life of the sealing ring.

[0027] Multiple sets of movable rods 2 and springs 3 are arranged in a ring around the coarse circumference of the inner rubber ring 1. This arrangement ensures the uniform distribution of the movable rods 2 and springs 3. The outer surface of the silicone outer ring 4 is coated with an epoxy resin coating 5. Epoxy resin has good insulation properties, chemical corrosion resistance, and mechanical strength, which can improve the insulation and protective performance of the O-ring. The inner surface of the silicone outer ring 4 is coated with a ceramic coating 6. The ceramic coating 6 has good wear resistance, insulation properties, and heat resistance, which can further improve the performance of the O-ring in complex operating environments.

[0028] Working principle: Multiple sets of movable rods 2 are arranged in a ring array on the outer surface of the rubber inner ring 1, and springs 3 are provided at the outer ends of each set of movable rods 2. A silicone outer ring 4 is injection molded onto the outer ends of the multiple sets of movable rods 2 and springs 3. When the elasticity of the silicone outer ring 4 decreases due to wear, the silicone outer ring 4 will shrink. At the same time, the springs 3 at the outer ends of the movable rods 2 will expand the silicone outer ring 4 outward through the rebound force of the springs 3, thereby avoiding the situation where the silicone outer ring 4 wears and shrinks, which leads to a decrease in its sealing performance, and further improving the service life of the sealing ring. An epoxy resin coating 5 is applied to the outer surface of the silicone outer ring. Epoxy resin has good insulation properties, chemical corrosion resistance and mechanical strength, which can improve the insulation and protection performance of the O-ring. At the same time, a ceramic coating 6 is applied to the inner surface of the silicone outer ring. The ceramic coating 6 has good wear resistance, insulation properties and heat resistance, which can further improve the performance of the O-ring in complex operating environments.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elastic O-ring, comprising a rubber inner ring (1), characterized in that: The outer surface of the rubber inner ring (1) is provided with a ring array of multiple sets of movable rods (2), and the outer ends of the multiple sets of movable rods (2) are provided with springs (3). The outer ends of the multiple sets of movable rods (2) and springs (3) are provided with silicone outer rings (4). The silicone outer rings (4) are connected to the multiple sets of movable rods (2) and springs (3) by injection molding.

2. The elastic O-ring according to claim 1, characterized in that: The multiple sets of movable rods (2) and springs (3) are all arranged in a ring array around the coarse circumference of the inner rubber ring (1) by individual movable rods (2) and springs (3).

3. The elastic O-ring according to claim 1, characterized in that: The outer surface of the silicone outer ring (4) is coated with an epoxy resin coating (5).

4. The elastic O-ring according to claim 1, characterized in that: The inner surface of the silicone outer ring (4) is coated with a ceramic coating (6).

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