Self-adjusting sealing ring

Abstract

The utility model relates to the technical field of sealing rings, and discloses a self-adjusting sealing ring which comprises an outer ring, a cavity is formed in the outer ring, the inner wall of the cavity is connected with an inner ring in a sliding mode, the outer side of the inner ring is fixedly connected with a clamping assembly used for providing a limiting function, the outer side of the clamping assembly is fixedly connected with a spring, and the spring is fixedly connected with the inner ring. The other end of the spring is fixedly connected with a sliding plate, the outer side of the clamping assembly is fixedly connected with a plurality of telescopic assemblies used for supporting the spring, the inner wall of the outer ring is fixedly connected with a multifunctional assembly capable of improving the sealing performance, the clamping assembly comprises a limiting ring, and the inner side of the limiting ring is fixedly connected to the outer side of the inner ring. The telescopic assembly comprises an outer column. According to the utility model, the outer ring is made of soft rubber, has good telescopic performance, and can be adaptively adjusted according to different pressures, so that the outer ring is attached to a sealing surface all the time, and leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a self-adjusting sealing ring. Background Art

[0002] The sealing ring technology is a technology used to prevent liquid or gas leakage and is widely applied to various mechanical equipment and systems. It can closely fit between two relatively moving parts to form an effective seal. This technology can not only improve the efficiency and reliability of the equipment but also extend its service life. With the development of technology, the sealing ring technology has been continuously innovated, bringing more possibilities to the industrial field.

[0003] In the prior art, some sealing rings have poor elasticity and cannot be adaptively adjusted according to the magnitude of pressure, which makes them unable to effectively fit the sealing surface when the pressure changes, resulting in leakage problems. Therefore, a self-adjusting sealing ring is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a self-adjusting sealing ring, aiming to improve the problem that some sealing rings in the prior art have poor elasticity and cannot be adaptively adjusted according to the magnitude of pressure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The self-adjusting sealing ring includes an outer ring. A cavity is formed inside the outer ring. An inner ring is slidably connected to the inner wall of the cavity. A clamping component for providing a limiting function is fixedly connected to the outer side of the inner ring. A spring is fixedly connected to the outer side of the clamping component. The other end of the spring is fixedly connected to a sliding plate. A plurality of telescopic components for supporting the spring are fixedly connected to the outer side of the clamping component. A multi-functional component for improving the sealing performance is fixedly connected to the inner wall of the outer ring;

[0007] As a further description of the above technical solution:

[0008] The clamping component includes a limiting ring, and the inner side of the limiting ring is fixedly connected to the outer side of the inner ring;

[0009] As a further description of the above technical solution:

[0010] The telescopic component includes an outer column, the inner side of the outer column is fixedly connected to the outer side of the limiting ring, an inner column is slidably connected to the inner wall of the outer column, and a limiting block is fixedly connected to the inner side of the inner column;

[0011] As a further description of the above technical solution:

[0012] The multi-functional component includes a heat-resistant layer, the outer side of the heat-resistant layer is fixedly connected to the inner wall of the cavity, the inner wall of the heat-resistant layer is fixedly connected with a weather-resistant layer, the inner wall of the weather-resistant layer is fixedly connected with an anti-aging layer, the inner wall of the anti-aging layer is fixedly connected with a compressive layer, and the inner wall of the compressive layer is fixedly connected with an oil-resistant layer;

[0013] As a further description of the above technical solution:

[0014] The outer part of the inner ring is slidably connected to the inner wall of the outer ring, and the inner side of the inner ring is rounded;

[0015] As a further description of the above technical solution:

[0016] The outer part of the limiting ring is slidably connected to the inner wall of the outer ring, and the outer part of the limiting ring is slidably connected to the inner wall of the cavity;

[0017] As a further description of the above technical solution:

[0018] The outer part of the sliding plate is slidably connected to the inner wall of the outer ring, and the outer part of the sliding plate is slidably connected to the inner wall of the cavity;

[0019] As a further description of the above technical solution:

[0020] The outer part of the outer ring is rounded, and the sliding plate is arc-shaped.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, the material of the outer ring here is soft rubber, which has good telescopic performance and can be adaptively adjusted according to different pressures, so that it always fits the sealing surface to prevent leakage; at the same time, when the outer ring here is sleeved outside a larger object, the spring and the outer column here will contract under the extrusion of the limiting ring and the sliding plate, thereby giving a reaction force to the inner ring to make it squeeze more tightly.

[0023] In the utility model, the special materials of the heat-resistant layer, the weather-resistant layer, the anti-aging layer and the compressive layer here are all a kind of soft rubber. Without affecting the self-adaptive adjustment of the length of this sealing ring, it provides better performance for itself and improves the practicability of this sealing ring. Description of the Drawings

[0024] Figure 1 is a three-dimensional schematic diagram of the self-adjusting sealing ring proposed by the utility model;

[0025] Figure 2 is a structural schematic diagram of the sliding plate of the self-adjusting sealing ring proposed by the utility model;

[0026] Figure 3Structural schematic diagram of the inner column of the self-adjusting sealing ring proposed by the present utility model;

[0027] Figure 4 Structural schematic diagram of the weather-resistant layer of the self-adjusting sealing ring proposed by the present utility model.

[0028] Legend:

[0029] 1. Outer ring; 2. Inner ring; 3. Limit ring; 4. Slide plate; 5. Spring; 6. Outer column; 7. Inner column; 8. Limit block; 9. Heat-resistant layer; 10. Weather-resistant layer; 11. Aging-resistant layer; 12. Compression-resistant layer; 13. Oil-resistant layer. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figures 1 to 3 , an embodiment provided by the present utility model: a self-adjusting sealing ring, including an outer ring 1, the outside of the outer ring 1 is rounded, and this rounding treatment makes the outer ring 1 smoother when sleeved on the object where the sealing ring is required, reducing resistance. A cavity is opened inside the outer ring 1, and an inner ring 2 is slidably connected to the inner wall of the cavity. The outside of the inner ring 2 is slidably connected to the inner wall of the outer ring 1. The inside of the inner ring 2 is rounded, and this rounding treatment of the inner ring 2 also makes it easier to sleeve on the object where the sealing ring is required. A clamping component for providing a limiting function is fixedly connected to the outside of the inner ring 2. The clamping component includes a limit ring 3, and the inside of the limit ring 3 is fixedly connected to the outside of the inner ring 2. Here, the limit ring 3 can prevent the inner ring 2 from getting out of the sliding range of the outer ring 1.

[0032] The outside of the limit ring 3 is slidably connected to the inner wall of the outer ring 1 and the inner wall of the cavity. A spring 5 is fixedly connected to the outside of the clamping component, and the other end of the spring 5 is fixedly connected to a slide plate 4. Here, the slide plate 4 and the limit ring 3 provide stable support for the spring 5. The shape of the slide plate 4 is arc-shaped. The outside of the slide plate 4 is slidably connected to the inner wall of the outer ring 1. Here, the slide plate 4 is an arc-shaped plate with an angle of 45 degrees and is evenly distributed on the inner wall of the outer ring 1. The outside of the slide plate 4 is slidably connected to the inner wall of the cavity. A plurality of telescopic components for supporting the spring 5 are fixedly connected to the outside of the clamping component. Here, the telescopic components can provide support for the spring 5, so that it remains stable during telescoping and will not be distorted and broken.

[0033] The telescopic assembly includes an outer column 6, the inner side of which is fixedly connected to the outer side of the retaining ring 3. The inner wall of the outer column 6 is slidably connected to the inner wall of the inner column 7. The inner side of the inner column 7 is fixedly connected to a retaining block 8. The retaining block 8 prevents the inner column 7 from escaping the sliding range of the outer column 6. When the outer ring 1 is placed on the outside of a larger object, the spring 5 and the telescopic assembly will contract under the pressure of the retaining ring 3 and the slide 4, thereby exerting a reaction force on the inner ring 2, squeezing it more tightly.

[0034] Reference Figure 2 and Figure 4 The inner wall of the outer ring 1 is fixedly connected with a multifunctional component for improving the sealing performance. The multifunctional component includes a heat-resistant layer 9. The outer side of the heat-resistant layer 9 is fixedly connected to the inner wall of the cavity. The material of the heat-resistant layer 9 here is FLS fluorosilicone rubber, which has good cold and high temperature resistance, making this sealing ring more adaptable to more extreme environments. The inner wall of the heat-resistant layer 9 is fixedly connected with a weather-resistant layer 10. The material of the weather-resistant layer 10 here is VITON fluororubber, which can enable this sealing ring to maintain its original performance and appearance under various natural environmental conditions. The inner wall of the weather-resistant layer 10 is fixedly connected with an aging-resistant layer 11. The material of the aging-resistant layer 11 here is SIL silicone rubber, which effectively enhances the service life of this sealing ring. The inner wall of the aging-resistant layer 11 is fixedly connected with a pressure-resistant layer 12;

[0035] The material of the pressure-resistant layer 12 here is HNBR hydrogenated nitrile rubber, which has excellent corrosion resistance, tear resistance and compression deformation resistance, so that this sealing ring will not be damaged when the length is adaptively adjusted. The inner wall of the pressure-resistant layer 12 is fixedly connected with an oil-resistant layer 13. The material of the oil-resistant layer 13 here is NBR nitrile rubber, which is suitable for use in media such as petroleum hydraulic oil, glycol hydraulic oil, diester lubricating oil, gasoline, water, silicone grease, silicone oil, etc., further improving the scope of application of this sealing ring. After the mutual cooperation of all the above material layers, the various performances of this sealing ring itself are more excellent, which improves the practicality of this sealing ring.

[0036] Working Principle: This self-adjusting seal is designed to achieve adaptive length adjustment and excellent sealing performance. The outer ring 1 and inner ring 2 are connected by a sliding mechanism, allowing the inner ring 2 to automatically adjust its position based on changes in external pressure. When the outer ring 1 is placed over a larger object, the spring 5 and telescopic assembly contract under the pressure of the retaining ring 3 and the slide 4, exerting a counterforce on the inner ring 2, allowing it to more tightly fit the object being sealed.

[0037] In addition, the multi-functional component includes different material layers such as a heat-resistant layer 9, a weather-resistant layer 10, an aging-resistant layer 11, and a compression-resistant layer 12. Here, the material of the heat-resistant layer 9 is FLS fluorosilicone rubber, which has good cold and high-temperature resistance, making this sealing ring more adaptable to more extreme environments. The material of the weather-resistant layer 10 here is VITON fluorine rubber, which can keep the original performance and appearance of this sealing ring under various natural environmental conditions. The material of the aging-resistant layer 11 here is SIL silicone rubber, effectively enhancing the service life of this sealing ring.

[0038] The material of the compression-resistant layer 12 is HNBR hydrogenated nitrile rubber, which has excellent corrosion resistance, tear resistance, and compression deformation resistance characteristics, making this sealing ring not damaged when self-adaptively adjusting its length. The material of the oil-resistant layer 13 here is NBR nitrile rubber, which is suitable for use in media such as petroleum-based hydraulic oil, glycol-based hydraulic oil, diester-based lubricating oil, gasoline, water, silicone grease, and silicone oil, further expanding the applicable range of this sealing ring. These material layers are all elastic rubber categories, which can make the various performances of this sealing ring itself more excellent without destroying its own energy of self-adaptively adjusting length, improving the practicability of this sealing ring.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Self-adjusting sealing ring, including an outer ring (1), characterized in that: A cavity is provided inside the outer ring (1), an inner ring (2) is slidably connected to the inner wall of the cavity, a clamping component for providing a limiting function is fixedly connected to the outer side of the inner ring (2), a spring (5) is fixedly connected to the outer side of the clamping component, the other end of the spring (5) is fixedly connected to a sliding plate (4), a plurality of telescopic components for supporting the spring (5) are fixedly connected to the outer side of the clamping component, and a multi-functional component for improving the sealing performance is fixedly connected to the inner wall of the outer ring (1).

2. The self-adjusting sealing ring according to claim 1, wherein: The clamping component includes a limiting ring (3), and the inner side of the limiting ring (3) is fixedly connected to the outer side of the inner ring (2).

3. The self-adjusting sealing ring according to claim 2, characterized in that: The telescopic component includes an outer column (6), the inner side of the outer column (6) is fixedly connected to the outer side of the limiting ring (3), an inner column (7) is slidably connected to the inner wall of the outer column (6), and a limiting block (8) is fixedly connected to the inner side of the inner column (7).

4. The self-adjusting sealing ring according to claim 1, wherein: The multi-functional component includes a heat-resistant layer (9), the outer side of the heat-resistant layer (9) is fixedly connected to the inner wall of the cavity, a weather-resistant layer (10) is fixedly connected to the inner wall of the heat-resistant layer (9), an anti-aging layer (11) is fixedly connected to the inner wall of the weather-resistant layer (10), a compressive layer (12) is fixedly connected to the inner wall of the anti-aging layer (11), and an oil-resistant layer (13) is fixedly connected to the inner wall of the compressive layer (12).

5. The self-adjusting sealing ring according to claim 1, characterized in that: The outer side of the inner ring (2) is slidably connected to the inner wall of the outer ring (1), and the inner side of the inner ring (2) is rounded.

6. The self-adjusting sealing ring according to claim 2, wherein: The outer side of the limiting ring (3) is slidably connected to the inner wall of the outer ring (1), and the outer side of the limiting ring (3) is slidably connected to the inner wall of the cavity.

7. The self-adjusting sealing ring according to claim 1, wherein: The outer side of the sliding plate (4) is slidably connected to the inner wall of the outer ring (1), and the outer side of the sliding plate (4) is slidably connected to the inner wall of the cavity.

8. The self-adjusting sealing ring according to claim 1, wherein: The outer side of the outer ring (1) is rounded, and the shape of the sliding plate (4) is arc-shaped.

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