High-performance aviation sealing ring

Abstract

The utility model belongs to the technical field of sealing rings, and particularly relates to a high-performance aviation sealing ring. The high-performance aviation sealing ring comprises two sealing sliding rings which are symmetrically arranged, a connecting groove is formed above the sealing sliding rings, a first sealing ring is arranged in the connecting groove, and a second sealing ring is buckled in the middle of the inner side of each sealing sliding ring through a limiting sealing groove. Third sealing rings are arranged on the two sides of the second sealing ring, and the surfaces of the first sealing ring, the second sealing ring and the third sealing rings are coated with spraying layers.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing rings, and in particular relates to a high-performance aviation sealing ring. Background Art

[0002] Aviation seals refer to seals used in aircraft and aviation devices to prevent leakage of liquids or gases and maintain pressure or vacuum. These seals are usually required to have high durability, excellent sealing performance and adaptability to various environments. The performance of aviation seals is crucial to flight safety and the reliability of aviation devices.

[0003] Existing aviation sealing rings mostly use a single-layer or double-layer separation method to seal the interior of an aircraft during use. However, due to the small number of sealing rings contained inside the sealing ring during use and the fact that most of the sealing rings are directly exposed to the outside world, the service life of the sealing ring is short. Therefore, a high-performance aviation sealing ring is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing aviation sealing ring has a short service life due to the small number of sealing rings inside the sealing ring and the sealing ring being directly exposed to the outside during use.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a high-performance aviation sealing ring, including two sealing slip rings, and the two sealing slip rings are symmetrically arranged, a connecting groove is arranged above the sealing slip ring, a first sealing ring is arranged inside the connecting groove, a second sealing ring is buckled in the middle of the inner side of the two sealing slip rings through a limiting sealing groove, a third sealing ring is arranged on both sides of the second sealing ring, and the surfaces of the first sealing ring, the second sealing ring and the third sealing ring are coated with a spray layer.

[0006] As an improvement, the cross section of the first sealing ring is rectangular, and the shape of the first sealing ring matches that of the connecting groove.

[0007] As an improvement, the cross section of the limiting sealing groove is an inwardly recessed V-shaped structure, and the upper and lower ends of the second sealing ring match the shape of the limiting sealing groove.

[0008] As an improvement, corresponding side limit grooves are provided on the sealing slip ring on both sides of the second sealing ring, the third sealing rings on both sides are located inside the side limit grooves, and the side limit grooves are provided with corresponding chamfers on the side close to the third sealing ring.

[0009] As an improvement, the cross section of the third sealing ring is circular, and the diameter of the third sealing ring is smaller than the distance between the two sealing sliding rings.

[0010] As an improvement, the first sealing ring, the second sealing ring and the third sealing ring are all made of modified polytetrafluoroethylene material.

[0011] As an improvement, the spray coating is one of polyurethane coating or silicone coating.

[0012] The advantages of the utility model compared with the prior art are:

[0013] 1. The utility model forms three layers of separation on both sides of the sealing ring by clamping three sealing rings between two sealing sliding rings, and the upper and lower sides and the middle of the two sealing sliding rings are separated by three layers of sealing rings, so as to achieve the purpose of more sealing and better sealing effect;

[0014] 2. The utility model coats the surfaces of the first sealing ring, the second sealing ring and the third sealing ring with a spray coating, so that coatings of different materials can be selected according to the properties of the location where the aviation sealing ring is used before use, thereby better adapting to the working environment required by the aviation sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural diagram of a high-performance aviation sealing ring.

[0016] Figure 2 The utility model is an exploded structural diagram of a high-performance aviation sealing ring.

[0017] Figure 3 The utility model is a cross-sectional structural diagram of a high-performance aviation sealing ring.

[0018] Figure 4 This is an enlarged view of the structure of point A of a high-performance aviation sealing ring of the utility model.

[0019] As shown in the figure: 1. Sealing slip ring; 2. Connecting groove; 3. First sealing ring; 4. Limit sealing groove; 5. Second sealing ring; 6. Third sealing ring; 7. Spray layer; 8. Side limit groove; 9. Chamfer DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0022] Embodiment 1:

[0023] As the instruction manual Figure 1-4 As shown, a high-performance aviation sealing ring includes two sealing slip rings 1, and the two sealing slip rings 1 are symmetrically arranged, a connecting groove 2 is arranged above the sealing slip ring 1, a first sealing ring 3 is arranged inside the connecting groove 2, the cross-section of the first sealing ring 3 is rectangular, and the shape of the first sealing ring 3 matches that of the connecting groove 2.

[0024] In the utility model, a second sealing ring 5 is buckled in the middle of the inner side of the two sealing slip rings 1 through a limiting sealing groove 4. The cross section of the limiting sealing groove 4 is an inwardly concave V-shaped structure, and the upper and lower ends of the second sealing ring 5 match the shape of the limiting sealing groove 4. The two sides of the second sealing ring 5 are located on the sealing slip ring 1 and corresponding side limiting grooves 8 are provided. The third sealing rings 6 on both sides are located inside the side limiting grooves 8, and the side limiting grooves 8 are located on the side close to the third sealing ring 6 and a corresponding chamfer 9 is provided.

[0025] In the present invention, third sealing rings 6 are arranged on both sides of the second sealing ring 5 . The cross section of the third sealing ring 6 is circular, and the diameter of the third sealing ring is smaller than the distance between the two sealing sliding rings 1 .

[0026] In the utility model, the first sealing ring 3, the second sealing ring 5 and the third sealing ring 6 are all made of modified polytetrafluoroethylene material, and the surfaces of the first sealing ring 3, the second sealing ring 5 and the third sealing ring 6 are coated with a spray layer 7, which is one of a polyurethane coating or a silicone coating.

[0027] The utility model is a coaxial seal as a whole, and can be sealed and fixed in a simple assembly manner by means of a first sealing ring 3 at the bottom, a sealing slide ring 1 at the bottom, a second sealing ring 5 in the middle, third sealing rings 6 on both sides of the middle, a sealing slide ring 1 at the top and a first sealing ring 3 at the top. In the sealing process, a three-layer sealing structure is formed longitudinally by the first sealing ring 3, the second sealing ring 5 and the first sealing ring 3. At the same time, two third sealing rings 6 form a three-layer sealing structure between the two sides of the second sealing ring 5 and the two sealing slide rings 1 to ensure the sealing of the aircraft. At the same time, the aviation sealing ring can be adaptively adjusted by selecting a suitable spray layer 7 material.

[0028] The above describes the utility model and its implementation methods, which are not restrictive. The specific implementation method is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A high-performance aviation sealing ring, comprising two sealing slip rings, and the two sealing slip rings are symmetrically arranged, characterized in that: A connecting groove is arranged above the sealing slip ring, a first sealing ring is arranged inside the connecting groove, a second sealing ring is buckled in the middle of the inner sides of the two sealing slip rings through a limiting sealing groove, third sealing rings are arranged on both sides of the second sealing ring, and surfaces of the first sealing ring, the second sealing ring and the third sealing ring are coated with a spray coating.

2. A high performance aviation sealing ring according to claim 1, characterized in that: The cross section of the first sealing ring is rectangular, and the shape of the first sealing ring matches that of the connecting groove.

3. A high performance aviation sealing ring according to claim 1, characterized in that: The cross section of the limiting sealing groove is an inwardly concave V-shaped structure, and the upper and lower ends of the second sealing ring match the shape of the limiting sealing groove.

4. A high performance aviation sealing ring according to claim 1, characterized in that: The second sealing ring is provided with corresponding side limit grooves on both sides of the sealing slip ring, the third sealing rings on both sides are located inside the side limit grooves, and the side limit grooves are provided with corresponding chamfers on one side close to the third sealing ring.

5. A high performance aviation sealing ring according to claim 1, characterized in that: The cross section of the third sealing ring is circular, and the diameter of the third sealing ring is smaller than the distance between the two sealing sliding rings.

6. A high performance aviation sealing ring according to claim 1, characterized in that: The first sealing ring, the second sealing ring and the third sealing ring are all made of modified polytetrafluoroethylene material.

7. A high performance aviation sealing ring according to claim 1, characterized in that: The spray coating is one of polyurethane coating or silicone coating.

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