Rubber sealing ring with high sealing performance

Abstract

The utility model relates to the technical field of rubber sealing rings, and discloses a rubber sealing ring with high sealing performance, which comprises a sealing ring main body with an inner ring and an outer ring, and the sealing ring main body adopts a multi-layer composite structure and sequentially comprises an inner rubber layer, an outer rubber layer, an outer rubber layer and an inner rubber layer from inside to outside, the medium resistance of the sealing ring is enhanced; the reinforced fiber layer is made of high-strength aramid fibers, so that the compressive strength and the tear resistance of the sealing ring are improved; the natural rubber layer is made of natural rubber and is high in elasticity, so that the sealing stability of the sealing ring is enhanced when the sealing ring is extruded; the outer rubber layer is made of polyurethane rubber with excellent wear resistance, so that the wear resistance of the sealing ring is improved; in addition, the sealing ring body is further provided with a sealing enhancing structure. Through the combination of a multi-layer composite structure and a unique sealing reinforcing structure, the comprehensive performance of the sealing ring is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing ring technology, and more specifically to a high-sealing-performance rubber sealing ring. Background Technology

[0002] Rubber seals are key components in mechanical equipment, and their sealing performance directly affects the equipment's operating efficiency and safety. However, traditional rubber seals often suffer from problems such as poor sealing, easy aging, and poor wear resistance under complex working conditions, making it difficult to meet high sealing requirements. Therefore, this paper studies and improves existing structures and shortcomings to provide a high-performance rubber seal, aiming to achieve greater practical value. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-sealing-performance rubber sealing ring to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a high-sealing-performance rubber sealing ring, comprising a sealing ring body having an inner ring and an outer ring, wherein the sealing ring body adopts a multi-layer composite structure, and from the inside to the outside are:

[0005] The inner rubber layer is made of nitrile rubber, which has excellent high temperature resistance and oil resistance, to enhance the sealing ring's resistance to media.

[0006] The reinforcing fiber layer uses high-strength aramid fibers to improve the compressive strength and tear resistance of the sealing ring;

[0007] The natural rubber layer, made of natural rubber, is highly elastic to enhance the sealing stability of the sealing ring under compression.

[0008] The outer rubber layer is made of polyurethane rubber with excellent wear resistance to improve the wear resistance of the sealing ring;

[0009] In addition, the sealing ring body is also provided with a sealing reinforcement structure:

[0010] The outer ring sealing step, located on the outer ring, consists of at least three annular rubber rings with diameters decreasing from top to bottom, designed to increase the contact area and enhance the sealing effect;

[0011] The inner sealing step, located within the inner ring, comprises at least three circular rubber rings of the same diameter, effectively blocking media penetration and enhancing sealing performance. The inner rubber layer is made of nitrile rubber, exhibiting excellent high-temperature and oil resistance, effectively resisting the erosion of the sealing ring material by high-temperature and oily media, extending its service life, and improving the sealing ring's media resistance. The reinforcing fiber layer significantly enhances the sealing ring's compressive strength and tear resistance, maintaining structural integrity even under high pressure or complex stress environments, preventing media leakage due to rupture. The natural rubber layer utilizes the high elasticity of natural rubber to enhance the sealing ring's tightness under compression. To ensure sealing stability and maintain reliable sealing performance under dynamic operating conditions, the outer rubber layer uses high-wear-resistant polyurethane rubber, effectively resisting damage to the sealing ring caused by friction and wear, extending the replacement cycle of the sealing ring, and reducing maintenance costs. The stepped structure of the outer ring seal not only increases the contact area between the sealing ring and the sealing surface, but also further enhances the sealing effect through a multi-stage sealing effect, effectively preventing media leakage. In addition, although the inner ring seal steps have the same diameter, by increasing the complexity and tightness of the sealing interface, they effectively block the penetration path of the media, further improving the sealing performance.

[0012] Furthermore, the bottom end of the sealing ring body is provided with at least two bottom annular grooves. These grooves are used to mitigate the impact of thermal expansion and contraction on the size of the sealing ring, thereby improving the adaptability and stability of the sealing ring under different temperature environments.

[0013] Furthermore, the reinforcing fiber layer is tightly bonded to the inner rubber layer and the natural rubber layer through a vulcanization process, forming an integrated high-strength structure, which further enhances the overall strength and durability of the sealing ring.

[0014] Furthermore, each annular rubber ring of the inner sealing step is designed with micro-sealing grooves or protrusions to form a micro-sealing structure, further improving sealing accuracy and preventing leakage of minute media.

[0015] Furthermore, the overall size and shape of the sealing ring body can be customized according to specific application scenarios, including but not limited to circular, square, rectangular or special irregular designs, to meet the sealing requirements of different devices and systems.

[0016] Furthermore, the outer surface of the sealing ring body is provided with an identification area for marking information such as production date, batch number, specifications, or installation direction, so as to facilitate management and installation.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. The inner rubber layer is made of nitrile rubber with excellent high-temperature and oil resistance, effectively resisting the erosion of the sealing ring material by high-temperature and oily media, extending its service life, and improving the media resistance of the sealing ring. The reinforcing fiber layer significantly enhances the compressive strength and tear resistance of the sealing ring, maintaining structural integrity even under high pressure or complex stress environments, preventing media leakage due to rupture. The natural rubber layer utilizes the high elasticity of natural rubber to enhance the sealing stability of the sealing ring under compression, ensuring reliable sealing performance under dynamic operating conditions. The outer rubber layer uses polyurethane rubber with excellent wear resistance as the outer layer, effectively resisting damage to the sealing ring caused by friction and wear, extending the replacement cycle of the sealing ring, and reducing maintenance costs. The stepped structure of the outer ring sealing not only increases the contact area between the sealing ring and the sealing surface, but also further strengthens the sealing effect through multi-stage sealing effect, effectively preventing media leakage. In addition, although the inner ring sealing steps have the same diameter, by increasing the complexity and tightness of the sealing interface, they effectively block the penetration path of the media, further improving the sealing performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the first structure of this utility model.

[0020] Figure 2 This is a three-dimensional schematic diagram of the second structure of this utility model.

[0021] Figure 3 This is a three-dimensional disassembled schematic diagram of the structure of this utility model.

[0022] Figure 4 This is a three-dimensional cross-sectional view of the main structure of the sealing ring of this utility model.

[0023] In the diagram: 100, sealing ring body; 110, inner rubber layer; 111, reinforcing fiber layer; 112, natural rubber layer; 113, outer rubber layer; 114, outer ring sealing step; 115, inner ring sealing step; 116, bottom annular groove. Detailed Implementation

[0024] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings of the present invention.

[0025] Example 1: This utility model provides a high-sealing-performance rubber sealing ring, including a sealing ring body 100 with an inner ring and an outer ring. The sealing ring body 100 adopts a multi-layer composite structure, which consists of the following layers from the inside to the outside:

[0026] The inner rubber layer 110 is made of nitrile rubber with excellent high temperature resistance and oil resistance to enhance the sealing ring's resistance to media.

[0027] The reinforcing fiber layer 111 is made of high-strength aramid fiber, which improves the compressive strength and tear resistance of the sealing ring;

[0028] The natural rubber layer 112 is made of natural rubber and has high elasticity to enhance the sealing stability of the sealing ring when it is compressed.

[0029] The outer rubber layer 113 is made of polyurethane rubber with excellent wear resistance to improve the wear resistance of the sealing ring.

[0030] In addition, the sealing ring body 100 is also provided with a sealing reinforcement structure:

[0031] The outer ring sealing step 114 is set on the outer ring and consists of at least three annular rubber rings with diameters decreasing from top to bottom, which are designed to increase the contact area and enhance the sealing effect.

[0032] The inner ring sealing step 115 is located in the inner ring and includes at least three annular rubber rings of the same diameter, which effectively prevents media penetration and improves sealing performance.

[0033] The inner rubber layer is made of nitrile rubber, which has excellent high-temperature and oil resistance, effectively resisting the erosion of the sealing ring material by high-temperature and oily media, extending its service life, and improving the sealing ring's resistance to media. The reinforcing fiber layer significantly enhances the sealing ring's compressive strength and tear resistance, maintaining structural integrity even under high pressure or complex stress environments, preventing media leakage due to rupture. The natural rubber layer utilizes the high elasticity of natural rubber to enhance the sealing stability of the sealing ring under compression, ensuring reliable sealing performance under dynamic operating conditions. The outer rubber layer uses polyurethane rubber with excellent wear resistance, effectively resisting damage to the sealing ring caused by friction and wear, extending the sealing ring's replacement cycle, and reducing maintenance costs. The stepped structure of the outer ring seal not only increases the contact area between the sealing ring and the sealing surface but also further strengthens the sealing effect through multi-stage sealing, effectively preventing media leakage. In addition, although the inner ring seal steps have the same diameter, by increasing the complexity and tightness of the sealing interface, they effectively block the media penetration path, further improving sealing performance.

[0034] Example 2:

[0035] The difference between Embodiment 2 and Embodiment 1 is that: the bottom end of the sealing ring body 100 is provided with at least two bottom annular grooves 116. These grooves are used to mitigate the influence of thermal expansion and contraction on the size of the sealing ring, thereby improving the adaptability and stability of the sealing ring under different temperature environments. The reinforcing fiber layer 111 is tightly bonded to the inner rubber layer 110 and the natural rubber layer 112 through a vulcanization process to form an integrated high-strength structure, further enhancing the overall strength and durability of the sealing ring. Each annular rubber ring of the inner ring sealing step 115 is designed with micro-sealing grooves or protrusions to form a micro-sealing structure, further improving sealing accuracy and preventing leakage of small media. The overall size and shape of the sealing ring body 100 can be customized according to specific application scenarios, including but not limited to circular, square, rectangular or special irregular designs, to meet the sealing needs of different equipment and systems. The outer surface of the sealing ring body 100 is provided with an identification area for marking information such as production date, batch number, specifications or installation direction, to facilitate management and installation.

[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-sealing-performance rubber sealing ring, comprising a sealing ring body (100) having an inner ring and an outer ring, characterized in that: The sealing ring body (100) adopts a multi-layer composite structure, which consists of the following layers from the inside to the outside: The inner rubber layer (110) is made of nitrile rubber with excellent high temperature resistance and oil resistance to enhance the sealing ring's resistance to media. The reinforcing fiber layer (111) is made of high-strength aramid fiber, which improves the compressive strength and tear resistance of the sealing ring; The natural rubber layer (112) is made of natural rubber and has high elasticity to enhance the sealing stability of the sealing ring when it is compressed. The outer rubber layer (113) is made of polyurethane rubber with excellent wear resistance to improve the wear resistance of the sealing ring; In addition, the sealing ring body (100) is also provided with a sealing reinforcement structure: The outer ring sealing step (114) is provided on the outer ring and consists of at least three annular rubber rings with diameters decreasing from top to bottom, which are designed to increase the contact area and enhance the sealing effect; The inner ring sealing step (115) is located in the inner ring and includes at least three annular rubber rings of the same diameter, which effectively prevents media penetration and improves sealing performance.

2. The high-sealing-performance rubber sealing ring according to claim 1, characterized in that: The bottom end of the sealing ring body (100) is provided with at least two bottom annular grooves (116). These grooves are used to mitigate the influence of thermal expansion and contraction on the size of the sealing ring, thereby improving the adaptability and stability of the sealing ring under different temperature environments.

3. A high-sealing-performance rubber sealing ring according to claim 1 or 2, characterized in that: The reinforcing fiber layer (111) is tightly bonded to the inner rubber layer (110) and the natural rubber layer (112) through a vulcanization process, forming an integrated high-strength structure, which further enhances the overall strength and durability of the sealing ring.

4. The high-sealing-performance rubber sealing ring according to claim 1, characterized in that: Each annular rubber ring of the inner ring sealing step (115) is designed with a micro-sealing groove or protrusion to form a micro-sealing structure, further improving sealing accuracy and preventing leakage of minute media.

5. A high-sealing-performance rubber sealing ring according to claim 1, characterized in that: The overall size and shape of the sealing ring body (100) can be customized according to specific application scenarios, including but not limited to circular, square, rectangular or irregular designs, to meet the sealing needs of different equipment and systems.

6. The high-sealing-performance rubber sealing ring according to claim 1, characterized in that: The outer surface of the sealing ring body (100) is provided with an identification area for marking information such as production date, batch number, specifications, or installation direction, so as to facilitate management and installation.

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