High pressure resistant rubber ring

Abstract

The utility model discloses a kind of high-pressure-resistant rubber rings, belong to special sealing ring technical field, including flexible body and support framework, wherein, flexible body is rubber material and has good elasticity, and support framework is located the outer surface of flexible body, and support framework is implanted on flexible body by injection molding process, to facilitate batch production using mold, and support framework is the metal spring connected head to tail, whereby using the compression resistance of metal spring side surface, and the elasticity of flexible body is combined to relieve the case of rubber ring compression permanent deformation. In specific production, support framework needs to be placed in mold in advance, then material is injected into mold, so that support framework and flexible body are combined together. Compared with prior art, the high-pressure-resistant rubber ring disclosed by the utility model changes the internal organization structure of sealing ring by implanting support framework to optimize stress, so as to significantly improve the modulus, toughness and tear resistance of material.

Description

Technical Field

[0001] This utility model relates to the field of special sealing ring technology, specifically to a high-pressure resistant rubber ring. Background Technology

[0002] Rubber ring failure is a common but complex problem, usually not caused by a single reason, but rather by the combined effects of multiple factors, including chemical and physical ones. Among these, compression set is one of the most common and typical failure modes. It directly means that the seal has lost its elastic recovery ability and cannot return to its original shape and size even after the external force is removed.

[0003] The root cause of compression set is the irreversible damage and reorganization of the rubber polymer network structure under continuous pressure and heat. Therefore, it is necessary to consider multiple aspects such as material selection, structural design, supporting hardware, and use and maintenance. Improvements in a single aspect may have limited effect.

[0004] Therefore, the applicant proposes a new technical solution that optimizes stress by changing the internal structure of the sealing ring. This is the most direct and effective way to improve pressure resistance and can significantly extend the service life of the sealing ring. Utility Model Content

[0005] Therefore, this utility model provides a high-pressure resistant rubber ring, which solves the problem of sealing ring failure caused by permanent compression deformation in the prior art by adding reinforcing materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a high-pressure resistant rubber ring, comprising:

[0008] A flexible body with a smooth surface and a ring-shaped structure;

[0009] A support frame is disposed on the outer surface of the flexible body, and the support frame is an elastic metal body;

[0010] The flexible body is located inside the support frame, which is adapted to be placed in an injection mold and the support frame and the flexible body are combined together by an injection molding process.

[0011] Furthermore, the support frame is wrapped with rubber strips.

[0012] Furthermore, the rubber strip undergoes a vulcanization reaction after it is wound.

[0013] Furthermore, the supporting frame is a spring body connected end to end.

[0014] Furthermore, the support frame is composed of two stacked annular springs with opposite directions of rotation.

[0015] Furthermore, the supporting frame is made of metal and its surface is coated with anti-rust paint.

[0016] Furthermore, the flexible body is made of rubber.

[0017] This utility model has the following advantages:

[0018] The high-pressure resistant rubber ring disclosed in this utility model is mainly manufactured through injection molding. A support skeleton is implanted in the mold. Specifically, the support skeleton, which is an elastic metal body, is placed in the mold beforehand. Then, material is injected into the mold, and finally, the rubber ring is formed by injection molding. Compared with the prior art, the flexible body can optimize the stress by changing the internal structure of the entire sealing ring by implanting an elastic metal body on the outer surface. This significantly improves the material's pressure resistance, modulus, and tear resistance, effectively alleviating the problem of sealing ring failure caused by permanent compression deformation. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is an exploded view of the high-pressure resistant rubber ring structure provided by this utility model;

[0022] Figure 2 A perspective view of the rubber strip provided for this utility model;

[0023] Figure 3 A three-dimensional view of the flexible body provided by this utility model;

[0024] Figure 4 A perspective view of the spring body provided for this utility model;

[0025] Figure 5This is an exploded view of the spring body provided by this utility model;

[0026] In the diagram: 1. Flexible body; 2. Support frame; 3. Rubber strip; 4. Spring body; 5. Ring spring. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please refer to this as well. Figures 1-5 This utility model discloses a high-pressure resistant rubber ring, which adopts a mold injection molding process and improves the pressure resistance of the rubber ring by implanting reinforcing materials inside the rubber ring. The technical solution disclosed in this utility model will be described below by means of specific embodiments.

[0029] In one specific embodiment disclosed in this utility model, such as Figure 1 The high-pressure resistant rubber ring comprises a flexible body 1 and a supporting skeleton 2. The flexible body 1 is made of rubber, and the supporting skeleton 2 is located on the outer surface of the flexible body 1. The flexible body 1 is annular and has a smooth surface. In actual production, the flexible body 1 is produced in batches using injection molding and a mold. Furthermore, the supporting skeleton 2 is pre-placed in the mold, and then material is injected into the mold to bond the supporting skeleton 2 and the flexible body 1 together. This allows for optimization of stress distribution by altering the internal structure of the sealing ring, thereby significantly improving the material's modulus and tear resistance.

[0030] In this embodiment, the support frame 2 is a spring body 4 connected end to end. It should be noted that the spring body 4 is a single ring-shaped metal spring. This utilizes the excellent compressive strength of the side of the metal spring and the elasticity of the flexible body 1 to alleviate the permanent deformation of the rubber ring due to compression.

[0031] In some embodiments, such as Figure 4 and Figure 5 Regarding the specific structure of the support frame 2, optionally, the support frame 2 can also be composed of two stacked annular springs 5 ​​with opposite directions of rotation, forming the support frame 3. Compared to a single annular metal spring, since the two annular springs 5 ​​are of the same size but with opposite directions of rotation, the force on the support frame 3 can be evenly distributed on the two annular springs 5, effectively alleviating the problem of stress concentration leading to failure of the support frame 3. Furthermore, this structure can further improve the modulus and tear resistance of the high-pressure resistant rubber ring.

[0032] In some embodiments, such as Figure 3 The supporting frame 3 is made of metal and coated with anti-rust paint to reduce the corrosive effect of the external environment. Furthermore, in this embodiment, a rubber strip 3 is wrapped around the outside of the supporting frame 2. The rubber strip 3 is a strip-shaped rubber sheet used to wrap around the flexible body 1 and the supporting frame 2, thus providing protection. After the rubber strip 3 is wrapped, it undergoes a vulcanization reaction treatment. The vulcanization method uses steam vulcanization or hot air vulcanization to vulcanize the open-type product, thereby forming chemical cross-links between the linear molecular chains of the rubber, improving performance, reducing permanent deformation, and enhancing its resistance to chemical corrosion.

[0033] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-pressure resistant rubber ring, characterized in that, include: A flexible body (1) with a smooth surface and a ring shape; A support frame (2) is disposed on the outer surface of the flexible body (1), and the support frame (2) is an elastic metal body; The flexible body (1) is located inside the support frame (2), and the support frame (2) is adapted to be placed in an injection mold and the support frame (2) and the flexible body (1) are combined together by the injection molding process.

2. The high-pressure resistant rubber ring as described in claim 1, characterized in that, The support frame (2) is wrapped with rubber strips (3).

3. The high-pressure resistant rubber ring as described in claim 2, characterized in that, After the rubber strip (3) is wound, it undergoes a vulcanization reaction treatment.

4. The high-pressure resistant rubber ring as described in claim 1, characterized in that, The supporting frame (2) is a spring body (4) connected end to end.

5. The high-pressure resistant rubber ring as described in claim 1, characterized in that, The support frame (2) is composed of two ring springs (5) with opposite directions of rotation stacked together.

6. The high-pressure resistant rubber ring as described in claim 4 or 5, characterized in that, The supporting frame (2) is made of metal and its surface is coated with anti-rust paint.

7. The high-pressure resistant rubber ring as described in claim 1, characterized in that, The flexible body (1) is made of rubber.

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