Novel sealing ring air bag structure

Abstract

The utility model discloses a novel sealing ring air bag structure which relates to the technical field of sealing elements and comprises a sealing cover body and a support, a batten plate is fixedly arranged on one side of the sealing cover body close to a machine body, a sealing strip is sleeved on an inner ring of the batten plate, and the support is fixedly installed on the machine body. A sealing ring matched with the sealing strip is arranged on the inner circumference of the support, and the support and the sealing cover body are sealed through the sealing strip. The sealing strip is made of high-elasticity TPE materials, the hardness requirement is guaranteed to be 39 + / -8A, the sealing strip has the advantages of being free of deformation, high in resilience, easy to compress and tight in sealing, the streamline surface enables the connecting effect to be better in the sealing contact process, the contact face is made to be small first and then large through smooth transition from high to low, the air bag can be completely compressed, and the sealing effect is good. And complete sealing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a novel sealing ring airbag structure. Background Technology

[0002] In the manufacturing sector, ensuring an effective seal between two components is crucial for guaranteeing equipment performance and safety. Traditionally, an airbag structure with a sealing ring is used, where the airbag is tightly fitted to the surface of another component to achieve a seal. While widely used, this solution is not without its flaws.

[0003] Specifically, excessively hard sealing ring materials often lead to stress concentration at the sealing interface, accelerating wear on the seal and potentially causing leaks due to their inability to adapt to minute deformations. On the other hand, if the airbag itself is too elastic, while it may be easy to install and fit initially, long-term use can lead to decreased resilience due to material fatigue, thus affecting the durability and reliability of the seal. More commonly, the airbag will gradually deflate under prolonged pressure, losing its original shape and failing to fully recover even after pressure relief, significantly shortening the lifespan of the sealing structure.

[0004] In light of the aforementioned issues, the industry urgently needs an innovative sealing structure designed to optimize the material and hardness of the sealing ring, improve the fatigue resistance and rebound stability of the airbag, and ensure long-term maintenance of the sealing effect. Therefore, developing new sealing technologies that balance adaptability, durability, and sealing efficiency has become a pressing technical challenge for the manufacturing industry. Utility Model Content

[0005] The purpose of this invention is to provide a novel sealing ring airbag structure to solve the technical problem that excessively high hardness of the sealing ring material often leads to stress concentration at the sealing interface, which not only accelerates the wear of the sealing element, but may also cause leakage due to its inability to adapt to minute deformations.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A novel sealing ring airbag structure includes a sealing cover and a bracket. A pressure strip is fixedly installed on the side of the sealing cover near the machine body. A sealing strip is sleeved on the inner ring of the pressure strip. The bracket is fixedly installed on the machine body. A sealing ring that cooperates with the sealing strip is provided on the inner circumference of the bracket. The bracket and the sealing cover are sealed by the sealing strip.

[0008] As a further aspect of this utility model, the sealing strip is made of high-elasticity TPE, and the hardness requirement is 39±8A.

[0009] As a further aspect of this utility model: the outer surface of the sealing strip is streamlined, with a smooth transition from high to low.

[0010] As a further embodiment of this utility model: the sealing strip is provided with a connecting groove that engages with the inner ring of the pressure plate.

[0011] As a further embodiment of this utility model, the sidewall of the connecting groove is provided with a plurality of connecting protrusions.

[0012] As a further embodiment of this utility model: the upper part of the sealing strip is provided with a reinforcing protrusion, and the reinforcing protrusion is a local reinforcement structure.

[0013] As a further embodiment of this utility model: the lower part of the sealing strip is provided with a pointed protrusion, the pointed protrusion having a pointed structure and making seamless contact with the surface of the sealing cover.

[0014] As a further embodiment of this utility model: the pointed protrusion and the reinforcing protrusion are connected by a streamlined sealing surface.

[0015] As a further embodiment of this utility model, the sealing strip is provided with supporting ribs inside.

[0016] As a further embodiment of this utility model: the supporting rib is provided with a local groove for reducing its thickness.

[0017] The beneficial effects of this utility model are:

[0018] (1) The sealing strip is made of high elastic TPE material and the hardness is required to be 39±8A, so that the sealing strip has the characteristics of non-deformation, high resilience, easy compression and tight sealing. The streamlined surface makes the connection effect better during the sealing contact process. The smooth transition from high to low makes the contact surface small to large, which can make the airbag completely compressed to achieve a complete seal.

[0019] (2) The setting of the connecting groove makes the contact range between the sealing strip and the pressure plate larger, thereby ensuring the stability of the connection between the sealing strip and the pressure plate. The setting of the connecting convex pad plays a role in strengthening the sealing between the sealing strip and the pressure plate, further improving the stability of the connection between the sealing strip and the pressure plate. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a novel sealing ring airbag structure according to this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a novel sealing ring airbag structure sealing strip according to this utility model.

[0023] In the diagram: 1. Bracket; 2. Sealing strip; 21. Reinforcing protrusion; 22. Streamlined sealing surface; 23. Support rib; 24. Pointed protrusion; 25. Connecting groove; 26. Connecting pad; 27. Support strip; 3. Pressure strip plate; 4. Sealing cover. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention / 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 invention / utility model, and not all embodiments. Based on the embodiments of the present invention / utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention / utility model.

[0025] In the description of this invention / utility model, it should be understood that the terms "upper," "lower," "left," "right," etc., indicating orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0026] In the description of this invention / utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1-2 As shown, this utility model is a novel sealing ring airbag structure, including a sealing cover 4 and a bracket 1. A pressure strip 3 is fixedly installed on the side of the sealing cover 4 near the machine body. A sealing strip 2 is sleeved on the inner ring of the pressure strip 3. The bracket 1 is fixedly installed on the machine body. A sealing ring that cooperates with the sealing strip 2 is provided on the inner circumference of the bracket 1. The bracket 1 and the sealing cover 4 are sealed by the sealing strip 2.

[0028] In an optional embodiment, the sealing strip 2 is made of high-elasticity TPE and has a hardness requirement of 39±8A.

[0029] It should be noted that the sealing strip 2 is made of highly elastic TPE material, and the hardness requirement is guaranteed to be 39±8A, which makes the sealing strip 2 non-deformable, highly resilient, easy to compress, and tightly sealed.

[0030] In an optional embodiment, the outer contact surface of the sealing strip 2 is streamlined, with a smooth transition from high to low.

[0031] It should be noted that the streamlined surface improves the connection during the sealing process, and the smooth transition from high to low makes the contact surface smaller at first and then larger, allowing the airbag to be fully compressed and achieve a complete seal.

[0032] In an optional embodiment, the sealing strip 2 is provided with a connecting groove 25 that engages with the inner ring of the pressure strip 3.

[0033] It should be noted that the connection groove 25 allows for a larger contact range between the sealing strip 2 and the pressure plate 3, thereby ensuring the stability of the connection between the sealing strip 2 and the pressure plate 3.

[0034] In an optional embodiment, the sidewall of the connecting groove 25 is provided with a plurality of connecting protrusions 26.

[0035] It should be noted that by setting the connecting convex pad 26, the connection between the sealing strip 2 and the pressure plate 3 is strengthened and the stability of the connection between the sealing strip 2 and the pressure plate 3 is further improved.

[0036] In an optional embodiment, the upper part of the sealing strip 2 is provided with a reinforcing protrusion 21, which is a local reinforcement structure.

[0037] It should be noted that localized reinforcement structures can reduce shrinkage and lack of springback after long-term use.

[0038] In an optional embodiment, the lower part of the sealing strip 2 is provided with a pointed protrusion 24, which has a pointed structure and is in seamless contact with the surface of the sealing cover 4.

[0039] It should be noted that the pointed protrusion 24 is seamlessly connected to other contact parts, and the pointed structure is highly flexible and easy to seal completely.

[0040] In an optional embodiment, the pointed protrusion 24 and the reinforcing protrusion 21 are connected by a streamlined sealing surface 22.

[0041] It should be noted that the streamlined surface of the streamlined sealing surface 22 makes the contact surface smaller at first and then larger, which allows the airbag to be fully compressed to achieve a complete seal.

[0042] In an optional embodiment, the sealing strip 2 is provided with a support rib 23 inside.

[0043] It should be noted that the support rib 23 is used to prevent the airbag from not rebounding after prolonged compression.

[0044] In an optional embodiment, the support rib 23 is provided with a localized groove for reducing its thickness.

[0045] It should be noted that the top of the support rib 23 is locally thinned by 0.3mm at a height of 1mm. The purpose of this is to allow the airbag to be easily cushioned by compression. After long-term compression, the 1mm thick rib at the bottom is supported, so that it can rebound without shrinking after complete sealing.

[0046] Furthermore, a support strip 27 is provided inside the sealing strip 2. The support strip 27 is used to support the sealing strip 2 as a whole, ensuring that it provides support when the sealing strip 2 is compressed and sealed, thereby improving the sealing performance.

[0047] The working principle of this utility model is as follows: The overall requirement for the sealing strip 2 airbag is that the material is high-elasticity TPE and the hardness requirement is 39±8A; the structural design has a streamlined outer contact surface with a smooth transition from high to low; the reinforcing protrusion 21 has a local reinforcement structure, which can reduce the shrinkage and non-rebound after long-term use; the streamlined sealing surface 22 has a streamlined surface, so that the contact surface is small at the beginning and large at the end, which can fully compress the airbag to achieve a complete seal; a support rib 23 is added inside the sealing strip 2 to prevent the airbag from not rebounding after long-term compression. The top of the support rib 23 is locally thinned by 0.3mm at a height of 1mm. The purpose of this is to allow the airbag to be easily buffered and compressed. After long-term compression, the 1mm thick rib at the bottom provides support, so that after a complete seal, there is a rebound without shrinkage; the pointed protrusion 24 has a seamless connection with other contact parts and the pointed structure has high elasticity and is easy to achieve a complete seal.

[0048] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A novel sealing ring airbag structure, characterized in that, The device includes a sealing cover (4) and a bracket (1). A pressure strip (3) is fixedly installed on the side of the sealing cover (4) near the machine body. A sealing strip (2) is sleeved on the inner ring of the pressure strip (3). The bracket (1) is fixedly installed on the machine body. A sealing ring that cooperates with the sealing strip (2) is provided on the inner circumference of the bracket (1). The bracket (1) and the sealing cover (4) are sealed by the sealing strip (2).

2. The novel sealing ring airbag structure according to claim 1, characterized in that, The sealing strip (2) is made of high-elasticity TPE and has a hardness requirement of 39±8A.

3. The novel sealing ring airbag structure according to claim 1, characterized in that, The outer surface of the sealing strip (2) is streamlined and smoothly transitions from high to low.

4. The novel sealing ring airbag structure according to claim 1, characterized in that, The sealing strip (2) is provided with a connecting groove (25) that engages with the inner ring of the pressure plate (3).

5. The novel sealing ring airbag structure according to claim 4, characterized in that, The sidewall of the connecting groove (25) is provided with several connecting protrusions (26).

6. The novel sealing ring airbag structure according to claim 1, characterized in that, The upper part of the sealing strip (2) is provided with a reinforcing protrusion (21), which is a local reinforcement structure.

7. The novel sealing ring airbag structure according to claim 6, characterized in that, The lower part of the sealing strip (2) is provided with a pointed protrusion (24), which has a pointed structure and is in seamless contact with the surface of the sealing cover (4).

8. The novel sealing ring airbag structure according to claim 7, characterized in that, The pointed protrusion (24) and the reinforcing protrusion (21) are connected by a streamlined sealing surface (22).

9. The novel sealing ring airbag structure according to claim 1, characterized in that, The sealing strip (2) has a supporting rib (23) inside.

10. A novel sealing ring airbag structure according to claim 9, characterized in that, The support rib (23) is provided with a local groove for reducing its thickness.

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