A high-performance impact-resistant and noise-reducing composite gasket for aircraft equipment

Abstract

This utility model relates to the field of aerospace technology, and in particular to a high-performance impact-resistant and noise-reducing composite gasket for aircraft equipment. It includes a gasket body with two cavities inside. A circular block is placed inside each cavity, and a first rubber block is fixedly connected to one side of the circular block. One side of the first rubber block extends to the outside of the gasket body, and a groove is formed on one side of the first rubber block. This utility model has the advantages of excellent impact resistance and significant noise reduction. In actual use, when an impact load is applied, the second rubber block moves the first rubber block, causing the circular block to shift within the cavity. The impact force is transmitted to an elastic block, which in turn causes the fixed block to compress the spring. The spring undergoes elastic deformation under pressure, absorbing part of the impact energy. Simultaneously, the elastic block itself is made of a high-resilience material, which further disperses the impact force through its own deformation, effectively improving the gasket's impact resistance.

Description

Technical Field

[0001] This utility model relates to the field of aerospace technology, specifically a high-performance impact-resistant noise-reducing composite gasket for aircraft equipment. Background Technology

[0002] Aviation refers to the navigation activities of manned or unmanned aircraft in the Earth's atmosphere; spaceflight refers to the navigation activities of manned or unmanned spacecraft outside the Earth's atmosphere, also known as spaceflight or space travel. In order to expand social production, mankind must explore new spaces for activities, from land to sea, from sea to the atmosphere, and then to outer space. This is the process by which mankind gradually expands its scope of activities.

[0003] Traditional gaskets, when faced with impact loads, may rely solely on a single material or simple structure for buffering. They lack a multi-stage energy absorption mechanism that combines the elastic deformation of springs with the deformation of the high-resilience material itself. This results in an inability to effectively disperse and absorb impact energy, easily causing equipment or structures to be damaged by impact. When subjected to impact, gaskets may not be able to distribute the impact force evenly, easily causing stress concentration in local areas. The stress concentration areas will bear excessive pressure, accelerating material fatigue and damage, reducing the service life of the gasket, and even affecting the safety and reliability of connected aircraft equipment. At the same time, traditional gaskets do not form an effective acoustic barrier, allowing a large number of sound waves to propagate smoothly, resulting in unsatisfactory noise control effects. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance impact-resistant noise-reducing composite gasket for aircraft equipment, which has the advantages of excellent impact resistance and significant noise reduction effect, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-performance impact-resistant noise-reducing composite gasket for aircraft equipment, comprising a gasket body, wherein two cavities are formed inside the gasket body, a circular block is provided in the inner cavity of the cavity, a first rubber block is fixedly connected to one side of the circular block, one side of the first rubber block extends to the outer side of the gasket body, a groove is formed on one side of the first rubber block, a second rubber block is embedded in the inner cavity of the groove, an elastic block is provided in the inner cavity of the cavity, a fixing block is fixedly connected to the top and bottom of the inner cavity of the elastic block, and a spring is fixedly connected to the opposite side of the two fixing blocks.

[0006] Furthermore, as a preferred embodiment of this utility model, support blocks are fixedly connected to both sides of the top and bottom of the elastic block, and the two support blocks are fixedly connected to the gasket body and the round block respectively.

[0007] Furthermore, as a preferred embodiment of this utility model, the inner wall of the cavity is provided with an annular groove, and an annular block is slidably connected to the inner cavity of the annular groove, and the inner wall of the annular block is fixedly connected to the circular block.

[0008] Furthermore, as a preferred embodiment of this utility model, a groove is provided on one side of the second rubber block, and the number of the grooves is several.

[0009] Furthermore, as a preferred embodiment of this invention, one side of the second rubber block is provided with anti-slip texture.

[0010] Beneficial effects: The technical solution of this application has the following technical effects: This utility model has the advantages of excellent impact resistance and significant noise reduction. In actual use, when an impact load is applied, the second rubber block drives the first rubber block to move, the round block is displaced in the cavity, and the impact force is transmitted to the elastic block. The elastic block drives the fixed block to compress the spring. The spring undergoes elastic deformation under pressure to absorb part of the impact energy. At the same time, the elastic block itself is made of high-resilience material, which further disperses the impact force through its own deformation, effectively improving the impact resistance of the gasket. The first rubber block and the second rubber block form a double-layer acoustic barrier, utilizing the material... The impedance mismatch of the material reflects part of the sound waves, reducing sound wave propagation and noise. The slots in the second rubber block form a microporous sound-absorbing structure. After the sound waves enter the pores, they rub against the air and dissipate energy, effectively reducing mid-to-high frequency noise. The anti-slip texture on the surface of the second rubber block increases the sound wave reflection path, destroys the sound wave coherence, reduces resonance noise, and further improves the noise reduction effect. The combination of the spring and the elastic block forms a dynamic damping system. During impact or vibration, the reciprocating motion of the spring and the shear deformation of the elastic block work together to convert mechanical energy into heat energy, suppressing the radiation noise of structural vibration into the air and reducing noise generation from the source.

[0011] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural cross-section of the present invention. Figure 1 ; Figure 3 This is a cross-sectional view of the structure of this utility model; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a partial structural cross-section of the present invention. Figure 2 .

[0013] In the figure, the meanings of the reference numerals are as follows: 1. Gasket body; 2. Cavity; 3. Circular block; 4. First rubber block; 5. Groove; 6. Elastic block; 7. Fixing block; 8. Spring; 9. Support block; 10. Annular groove; 11. Annular block; 12. Second rubber block; 13. Slot hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. To better understand the technical content of the present utility model, specific embodiments are provided and described in conjunction with the accompanying drawings. Various aspects of the present utility model are described in this disclosure with reference to the accompanying drawings, which show many illustrative embodiments. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] As attached Figure 1 To be continued Figure 5 As shown: This embodiment provides a high-performance impact-resistant noise-reducing composite gasket for aircraft equipment, including a gasket body 1. The gasket body 1 has two cavities 2 inside. A circular block 3 is provided in the inner cavity of the cavity 2. A first rubber block 4 is fixedly connected to one side of the circular block 3. One side of the first rubber block 4 extends to the outside of the gasket body 1. A groove 5 is provided on one side of the first rubber block 4. A second rubber block 12 is embedded in the inner cavity of the groove 5. An elastic block 6 is provided in the inner cavity of the cavity 2. Fixing blocks 7 are fixedly connected to the top and bottom of the inner cavity of the elastic block 6. A spring 8 is fixedly connected to the opposite side of the two fixing blocks 7.

[0016] Specifically, support blocks 9 are fixedly connected to both sides of the top and bottom of the elastic block 6, and the two support blocks 9 are fixedly connected to the gasket body 1 and the round block 3 respectively.

[0017] In this embodiment: By setting the support block 9, the support block 9 fixes the elastic block 6 to the gasket body 1 and the circular block 3 to form a stable triangular structure. Under impact load, the triangular structure can effectively disperse stress and prevent the elastic block 6 from tearing or deforming due to excessive force at a single point, thus significantly improving the impact resistance and durability of the gasket.

[0018] Specifically, an annular groove 10 is provided on the inner wall of cavity 2, and an annular block 11 is slidably connected to the inner cavity of annular groove 10. The inner wall of annular block 11 is fixedly connected to circular block 3.

[0019] In this embodiment, the combined use of the annular groove 10 and the annular block 11 serves to limit the movement of the circular block 3, thereby improving the stability of the circular block 3 during movement.

[0020] Specifically, a groove 13 is provided on one side of the second rubber block 12, and the number of grooves 13 is several.

[0021] In this embodiment: by setting the slots 13, a number of slots 13 form a porous sound-absorbing structure. When sound waves enter the pores, the air rubs against the pore walls to generate viscous resistance, which can effectively absorb mid-to-high frequency noise.

[0022] Specifically, one side of the second rubber block 12 is provided with anti-slip texture.

[0023] In this embodiment: by setting anti-slip texture, the raised structure of the anti-slip texture can change the direction of sound wave propagation, causing the incident sound wave to be scattered and its coherence to be destroyed, thereby reducing the resonance peak caused by sound wave superposition and reducing the sharp noise in a specific frequency band.

[0024] The working principle and usage process of this utility model are as follows: The cavity 2 provides a space for the circular block 3 to move. When an impact load is applied, the second rubber block 12 drives the first rubber block 4 to move, and the circular block 3 is displaced in the cavity 2. The impact force is transmitted to the elastic block 6 through the first rubber block 4. The elastic block 6 drives the two fixed blocks 7 to move, thereby compressing the spring 8. The spring 8 in the elastic block 6 undergoes elastic deformation when compressed, absorbing part of the impact energy. The elastic block 6 itself is made of a high-resilience material, which further disperses the impact force through its own deformation. The support block 9 fixes the elastic block 6, the pad body 1, and the circular block 3 to form a stable triangular mechanical structure, preventing material failure caused by local stress concentration.

[0025] The first rubber block 4 and the second rubber block 12 form a double-layer acoustic barrier, reflecting part of the sound waves through material impedance mismatch. The slots 13 of the second rubber block 12 constitute a microporous sound-absorbing structure. After the sound waves enter the pores, they rub against the air and dissipate energy, reducing mid-to-high frequency noise. The anti-slip texture on the surface of the second rubber block 12 increases the sound wave reflection path, destroys the sound wave coherence, and reduces resonance noise. The combination of the spring 8 and the elastic block 6 forms a dynamic damping system. During impact or vibration, the reciprocating motion of the spring and the shear deformation of the elastic block work together to convert mechanical energy into heat energy, suppressing the radiation noise of structural vibration into the air.

[0026] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A high performance impact resistant noise reducing composite gasket for aircraft equipment comprising a gasket body (1) characterised in that: The gasket body (1) has two cavities (2) inside. A round block (3) is provided in the inner cavity of the cavity (2). A first rubber block (4) is fixedly connected to one side of the round block (3). One side of the first rubber block (4) extends to the outside of the gasket body (1). A groove (5) is provided on one side of the first rubber block (4). A second rubber block (12) is embedded in the inner cavity of the groove (5). An elastic block (6) is provided in the inner cavity of the cavity (2). A fixing block (7) is fixedly connected to the top and bottom of the inner cavity of the elastic block (6). A spring (8) is fixedly connected to the opposite side of the two fixing blocks (7).

2. A high performance impact resistant noise reducing composite gasket for use in aircraft equipment as defined in claim 1, characterized in that: The elastic block (6) has support blocks (9) fixedly connected to both sides of its top and bottom. The two support blocks (9) are fixedly connected to the gasket body (1) and the round block (3) respectively.

3. A high performance impact resistant noise reducing composite gasket for aircraft equipment as claimed in claim 1, wherein: The inner wall of the cavity (2) is provided with an annular groove (10), and an annular block (11) is slidably connected to the inner cavity of the annular groove (10). The inner wall of the annular block (11) is fixedly connected to the circular block (3).

4. A high performance impact resistant noise reducing composite gasket for aircraft equipment as defined in claim 1, wherein: The second rubber block (12) has a slot (13) on one side, and the number of slots (13) is several.

5. A high performance impact resistant noise reducing composite gasket for aircraft equipment as defined in claim 1, wherein: The second rubber block (12) has anti-slip texture on one side.

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