Rubber sealing element with heat insulation function for helicopter

Abstract

The utility model discloses a helicopter rubber sealing element with a heat insulation function, which comprises a rubber ring, a silica gel sealing strip, a metal sealing strip and a first connecting component, the first connecting component is mounted on the outer side of the rubber ring, the silica gel sealing strip is mounted on the outer side of the first connecting component, and the metal sealing strip is mounted on the outer side of the rubber ring. A second connecting assembly is connected to the outer side of the silica gel sealing strip, a metal sealing strip is installed on the outer side of the second connecting assembly, the outer side of the metal sealing strip is coated with an anti-corrosion layer, combination assemblies are installed at the top end and the bottom end of the rubber ring correspondingly, and sealing rings are installed on the outer sides of the combination assemblies. The first connecting assembly comprises a first hook-and-loop fastener sticking face and a first hook-and-loop fastener rough face, and the first hook-and-loop fastener sticking face is fixedly installed on the outer side of the rubber ring. According to the rubber sealing element with the heat insulation function for the helicopter, the length is convenient to adjust, so that the rubber sealing element adapts to parts with different lengths, the service life is long, the heat insulation effect is good, disassembly is convenient, and materials are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber seals for helicopters, in particular to a rubber seal for helicopters with heat insulation function. Background Technique

[0002] As one of the most characteristic creations in the aviation technology in the 20th century, helicopters have greatly expanded the application scope of aircraft. Helicopters are typical dual-use products for military and civilian use, and can be widely used in multiple fields such as transportation, patrol, tourism, and ambulance. A seal is a material or part of a component that prevents fluid or solid particles from leaking between adjacent mating surfaces and prevents external impurities such as dust and moisture from entering the interior of a machine or equipment. The storage room temperature of the seal is preferably below 30°C to avoid high-temperature aging of the seal.

[0003] Referring to the Chinese patent authorization announcement number CN208153214U, the authorization announcement date is November 27, 2018, which discloses a front and rear air intake seal for a helicopter engine, including a pipe fixing member, a seal, an air intake pipe, an extension folding rod, and a seal bottom plate. A groove is fixedly provided inside the pipe fixing member, a through hole is fixedly provided inside the groove, the air intake pipe is inserted into the through hole, the air intake pipe is inserted into a fitting layer, the fitting layer is the space between an outer skin and an inner skin, and an air intake channel is fixedly provided inside the inner skin. The seal is composed of an outer skin, an inner skin, and a seal bottom plate. A soft skin is sleeved outside the seal bottom plate, the soft skin is connected to the outer skin, an internal screw hole is fixedly provided on the seal bottom plate, a screw is threadedly connected to the internal screw hole, and the screw passes through the internal screw hole to connect to the screw hole inside the groove. Extension folding rods are connected to both sides of the outer skin, through holes are fixedly provided at the ends of the extension folding rods, threads are fixedly provided inside the through holes, and the through holes are threadedly connected to threaded columns. This kind of utility model can tightly adhere to the air intake pipe and will not separate from the air intake pipe, and can ensure the sealing effect for a long time.

[0004] However, the existing rubber seals for helicopters are not convenient for adjusting the length of the seal, the service life of the seal is relatively short, and the heat insulation effect is relatively poor. It is not convenient to disassemble the seal, thus wasting materials relatively; therefore, we propose a rubber seal for helicopters with heat insulation function to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rubber seal for helicopters with heat insulation function to solve the problems in the above background technique that the existing rubber seals for helicopters are not convenient for adjusting the length of the seal, the service life of the seal is relatively short, and the heat insulation effect is relatively poor. It is not convenient to disassemble the seal, thus wasting materials relatively.

[0006] To achieve the above object, the present utility model provides the following technical solution: A rubber seal for a helicopter with heat insulation function, comprising a rubber ring, a silica gel sealing strip, a metal sealing strip and a first connection assembly. The first connection assembly is installed outside the rubber ring, the silica gel sealing strip is installed outside the first connection assembly, the second connection assembly is connected to the outside of the silica gel sealing strip, the metal sealing strip is installed outside the second connection assembly, an anti-corrosion layer is applied to the outside of the metal sealing strip, combination assemblies are installed at both the top and bottom of the rubber ring, and sealing rings are installed outside the combination assemblies.

[0007] Preferably, the first connection assembly includes a first hook-and-loop fastener surface and a first hook-and-loop fastener hair surface, and the first hook-and-loop fastener surface is fixedly installed outside the rubber ring.

[0008] Preferably, the first hook-and-loop fastener hair surface is fixedly installed inside the silica gel sealing strip.

[0009] Preferably, the first hook-and-loop fastener surface is connected to the first hook-and-loop fastener hair surface.

[0010] Preferably, the second connection assembly includes a second hook-and-loop fastener surface and a second hook-and-loop fastener hair surface, and the second hook-and-loop fastener surface is fixedly installed outside the silica gel sealing strip.

[0011] Preferably, the second hook-and-loop fastener hair surface is fixedly installed inside the metal sealing strip, and the second hook-and-loop fastener surface is connected to the second hook-and-loop fastener hair surface.

[0012] Preferably, the combination assembly includes an external thread ring, an internal thread ring and a connection ring. The external thread ring is fixedly installed at the top of the rubber ring, and a sealing ring is fixedly installed at the non-threaded end outside the external thread ring.

[0013] Preferably, the connection ring is fixedly connected to the bottom of the rubber ring, and the internal thread ring is fixedly connected to the bottom of the connection ring.

[0014] Preferably, the external thread ring is threadedly connected to the internal thread ring.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: The rubber seal for a helicopter with heat insulation function is convenient for adjusting the length, so as to adapt to parts of different lengths, has a long service life, good heat insulation effect, and is convenient for disassembly, thus saving materials.

[0016] 1. There are combination assemblies and sealing rings. The external thread ring is fixedly installed at the top of the rubber ring, the connection ring is fixedly connected to the bottom of the rubber ring, and the internal thread ring is fixedly connected to the bottom of the connection ring. The external thread ring of another seal is threadedly connected to the internal thread ring of this seal, so that the two seals are combined, thereby adjusting the length of the seal.

[0017] Furthermore, a sealing ring is fixedly connected to the non-threaded section on the outer side of the external thread ring, resulting in a better sealing effect of the combined seal;

[0018] 2. A rubber ring, a silica gel sealing strip, and a metal sealing strip are provided. The silica gel sealing strip is installed on the outer side of the rubber ring, and the metal sealing strip is installed on the outer side of the silica gel sealing strip. The rubber sealing material has good elasticity and resistance to media. Both the silica gel sealing material and the metal sealing strip are heat-resistant and have good heat insulation properties, enabling the seal to have a good heat insulation effect;

[0019] Furthermore, both the silica gel sealing material and the metal sealing strip have corrosion resistance, and an anti-corrosion layer is applied to the outer side of the metal sealing strip, thereby extending the service life of the seal;

[0020] 3. A first connection component and a second connection component are provided. The first hook-and-loop fastener adhesive surface is fixedly installed on the outer side of the rubber ring, and the first hook-and-loop fastener fuzzy surface is fixedly installed on the inner side of the silica gel sealing strip, enabling the silica gel sealing strip to be connected to the outer side of the rubber ring. When disassembling, the silica gel sealing strip can be directly torn off;

[0021] Furthermore, the second hook-and-loop fastener fuzzy surface is fixedly installed on the inner side of the metal sealing strip, and the second hook-and-loop fastener adhesive surface is connected to the second hook-and-loop fastener fuzzy surface, enabling the metal sealing strip to be installed on the outer side of the silica gel sealing strip. When disassembling, the metal sealing strip can be directly torn off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic top cross-sectional structure view of the present utility model;

[0023] Figure 2 is a schematic front view structure view of the present utility model;

[0024] Figure 3 is a schematic connection structure view of the rubber ring, the silica gel sealing strip, and the metal sealing strip of the present utility model;

[0025] Figure 4 is a schematic first connection structure view of the combined component and the rubber ring of the present utility model;

[0026] Figure 5 is a schematic second connection structure view of the combined component and the rubber ring of the present utility model.

[0027] In the figure: 1, rubber ring; 2, silica gel sealing strip; 3, metal sealing strip; 4, first connection component; 401, first hook-and-loop fastener adhesive surface; 402, first hook-and-loop fastener fuzzy surface; 5, second connection component; 501, second hook-and-loop fastener adhesive surface; 502, second hook-and-loop fastener fuzzy surface; 6, combined component; 601, external thread ring; 602, internal thread ring; 603, connection ring; 7, sealing ring; 8, anti-corrosion layer. DETAILED DESCRIPTION OF THE INVENTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 - 5 , the present utility model provides the following technical solutions:

[0030] Embodiment 1: The existing rubber seal for helicopters is not convenient to adjust the length, so it cannot adapt to parts of different lengths. To solve this technical problem, the following technical content is disclosed in this embodiment:

[0031] A rubber seal for helicopters with heat insulation function, including a rubber ring 1, a silica gel sealing strip 2, a metal sealing strip 3 and a first connection component 4. The first connection component 4 is installed on the outer side of the rubber ring 1, the silica gel sealing strip 2 is installed on the outer side of the first connection component 4, the second connection component 5 is connected to the outer side of the silica gel sealing strip 2, the metal sealing strip 3 is installed on the outer side of the second connection component 5, an anti-corrosion layer 8 is applied to the outer side of the metal sealing strip 3, and combination components 6 are installed at both the top and bottom of the rubber ring 1, and a sealing ring 7 is installed on the outer side of the combination component 6.

[0032] As Figure 2 , Figure 4 and Figure 5 shown, the combination component 6 includes an external thread ring 601, an internal thread ring 602 and a connection ring 603. The external thread ring 601 is fixedly installed at the top of the rubber ring 1, the connection ring 603 is fixedly connected to the bottom of the rubber ring 1, and the internal thread ring 602 is fixedly connected to the bottom of the connection ring 603. Align the external thread ring 601 of another seal with the internal thread ring 602 of this seal, so that the external thread ring 601 is threadedly connected inside the internal thread ring 602, so that two seals are combined, thereby adjusting the length of the seal. And a sealing ring 7 is fixedly installed at the non-threaded end of the outer side of the external thread ring 601, so that the combined seal has a good sealing effect. When disassembling, just screw out the external thread ring 601 of one seal from the internal thread ring 602 of the other seal; connect according to the length of the seal required by the helicopter parts.

[0033] Embodiment 2: The existing rubber seal for helicopters has a short service life and poor heat insulation effect. To solve this technical problem, the following technical content is disclosed in this embodiment:

[0034] As Figure 1 and Figure 3As shown in the figure, a silica gel sealing strip 2 is installed on the outside of the rubber ring 1 through a first connecting component 4, and a metal sealing strip 3 is installed on the outside of the silica gel sealing strip 2 through a second connecting component 5. The rubber sealing material has good elasticity and resistance to media. The silica gel sealing material is resistant to high and low temperatures, has a heat insulation effect, and also has ozone resistance and chemical corrosion resistance. The metal sealing material is firm and durable, has heat insulation and strong corrosion resistance, and an anticorrosive layer 8 is applied to the outside of the metal sealing strip 3, which is a polyurethane coating. Polyurethane resin has weather resistance and strong acid and alkali resistance, is applicable to various steel components, pipelines, storage tanks, ships, bridges, etc., and has good rust prevention performance and flexibility, making the seal have a good heat insulation effect and a long service life;

[0035] Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Embodiment 2. The existing rubber seals for helicopters are not easy to disassemble and waste resources. To solve this technical problem, the following technical content is disclosed in this embodiment:

[0036] As shown in Figure 1 and Figure 3 the figure, the first connecting component 4 includes a first magic tape adhesive surface 401 and a first magic tape fuzzy surface 402. The first magic tape adhesive surface 401 is fixedly installed on the outside of the rubber ring 1, and the first magic tape fuzzy surface 402 is fixedly installed on the inner side of the silica gel sealing strip 2. The first magic tape adhesive surface 401 is connected to the first magic tape fuzzy surface 402, so that the silica gel sealing strip 2 is connected to the outside of the rubber ring 1. The second connecting component 5 includes a second magic tape adhesive surface 501 and a second magic tape fuzzy surface 502. The second magic tape adhesive surface 501 is fixedly installed on the outside of the silica gel sealing strip 2, and the second magic tape fuzzy surface 502 is fixedly installed on the inner side of the metal sealing strip 3. The second magic tape adhesive surface 501 is connected to the second magic tape fuzzy surface 502, so that the metal sealing strip 3 is installed on the outside of the silica gel sealing strip 2;

[0037] During disassembly, find the connection heads at both ends of the metal sealing strip 3, tear one end, tear off the metal sealing strip 3, and then disassemble the silica gel sealing strip 2. Similarly, find the connection heads at both ends of the silica gel sealing strip 2, tear one end, and tear off the silica gel sealing strip 2, so that the damaged part of the seal can be replaced, thus saving materials. During installation, align the first magic tape fuzzy surface 402 on the inner side of the silica gel sealing strip 2 with the first magic tape adhesive surface 401 and connect them, and align the second magic tape adhesive surface 501 on the inner side of the metal sealing strip 3 with the second magic tape fuzzy surface 501 and connect them.

[0038] The above completes a series of operations on the helicopter rubber seal with heat insulation function. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0040] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rubber seal for a helicopter with heat insulation function, comprising a rubber ring (1), a silica gel sealing strip (2), a metal sealing strip (3) and a first connection component (4), characterized in that: The first connection component (4) is installed on the outer side of the rubber ring (1), the silica gel sealing strip (2) is installed on the outer side of the first connection component (4), the second connection component (5) is connected to the outer side of the silica gel sealing strip (2), the metal sealing strip (3) is installed on the outer side of the second connection component (5), an anti-corrosion layer (8) is coated on the outer side of the metal sealing strip (3), combination components (6) are installed at both the top and bottom ends of the rubber ring (1), and a sealing ring (7) is installed on the outer side of the combination components (6).

2. The rubber seal for helicopter with heat insulation function according to claim 1, characterized in that: The first connection component (4) includes a first magic tape adhesive surface (401) and a first magic tape fuzzy surface (402), and the first magic tape adhesive surface (401) is fixedly installed on the outer side of the rubber ring (1).

3. The rubber seal for a helicopter with heat insulation function according to claim 2, wherein: The first magic tape fuzzy surface (402) is fixedly installed on the inner side of the silica gel sealing strip (2).

4. A rubber seal for a helicopter with heat insulation function according to claim 2, characterized in that: The first magic tape adhesive surface (401) is connected to the first magic tape fuzzy surface (402).

5. A rubber seal for a helicopter with heat insulation function according to claim 1, characterized in that: The second connection component (5) includes a second magic tape adhesive surface (501) and a second magic tape fuzzy surface (502), and the second magic tape adhesive surface (501) is fixedly installed on the outer side of the silica gel sealing strip (2).

6. The rubber seal for helicopter with heat insulation function according to claim 5, characterized in that: The second magic tape fuzzy surface (502) is fixedly installed on the inner side of the metal sealing strip (3), and the second magic tape adhesive surface (501) is connected to the second magic tape fuzzy surface (502).

7. A rubber seal for a helicopter with heat insulation function according to claim 1, characterized in that: The combination component (6) includes an external thread ring (601), an internal thread ring (602) and a connection ring (603). The external thread ring (601) is fixedly installed at the top end of the rubber ring (1), and a sealing ring (7) is fixedly installed at the non-threaded end of the outer side of the external thread ring (601).

8. The rubber seal for helicopter with heat insulation function according to claim 7, characterized in that: The connection ring (603) is fixedly connected to the bottom end of the rubber ring (1), and the internal thread ring (602) is fixedly connected to the bottom end of the connection ring (603).

9. The rubber seal for helicopter with heat insulation function according to claim 7, wherein: The external thread ring (601) is threadedly connected to the internal thread ring (602).

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