Flexible sealing device for gap of external rotating equipment of airplane

The flexible brush sealing device solves the sealing problem of the gap in rotating equipment, achieving interference-free sealing and rotation of the equipment, and providing a sealing solution that is easy to install.

CN223563463UActive Publication Date: 2025-11-18SHAANXI AIRCRAFT CORPORATION
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Patent Information

Application Number
CN202423209730.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-18
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In existing technologies, gaps in rotating equipment cannot be effectively sealed, and traditional rubber sealing strips can hinder equipment rotation, resulting in poor sealing performance.

Method used

A flexible brush sealing device is adopted, including a base, a brush pressing block, a brush base and fasteners. The brush is wrapped around the circumference of the rotating equipment and fixed to the base by the brush pressing block to ensure a seal without affecting the rotation.

Benefits of technology

It achieves effective sealing of gaps in rotating equipment, is easy to install, fills gaps without hindering equipment rotation, and avoids equipment damage and interference.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223563463U_ABST
    Figure CN223563463U_ABST
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Abstract

The utility model belongs to the field of external rotating equipment of airplanes, and relates to a flexible sealing device for gaps of the external rotating equipment of the airplanes. Comprising a base body, a brush pressing block, a brush base, a brush and a fastener. The base body is of a basic structure with a hole and is fixed, and the rotating device extends out of the hole of the base body and rotates within the range of the hole. The brush is used for filling a gap between the rotating equipment and the base body; a brush base is arranged on one side of the brush, the brush base is arranged in a groove of a brush pressing block, the brush pressing block clamps the brush with the brush base between the brush pressing block and the base body, and the brush pressing block and the base body are fixed through a fastener; the brush, the brush base and the brush pressing block are all annular and surround the rotating equipment, installation is convenient, a gap between the rotating equipment and a base body is filled, and rotation of the equipment is not hindered.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of aircraft external rotating equipment, and relates to a flexible sealing device for the gap of an aircraft external rotating equipment. BACKGROUND

[0002] The installation gap of the equipment is generally sealed by contact filling, but for rotating equipment, the gap around the circle cannot be filled by traditional rubber sealing strips because the rotating equipment is in motion. UTILITY MODEL CONTENT

[0003] UTILITY MODEL OBJECTIVE

[0004] The utility model overcomes the defects in the prior art and provides a flexible sealing device for the gap of an aircraft, which is convenient to disassemble and assemble, can fill the contact gap, and does not interfere with the rotation of the equipment.

[0005] TECHNICAL SCHEME

[0006] A flexible sealing device for the gap of an aircraft external rotating equipment, comprising a base, a brush pressing block, a brush base, a brush, and a fastener, wherein the base is a basic structure with an opening, is fixed and does not move, and the rotating equipment extends from the opening of the base and rotates within the range of the hole; the brush fills the gap between the rotating equipment and the base; one side of the brush is provided with the brush base, the brush base is arranged in the groove of the brush pressing block, the brush pressing block clamps the brush with the brush base between the brush pressing block and the base, and the fastener is used for fixation.

[0007] Further, the base is made of a non-metallic material, so that the rotating equipment is not damaged when being in contact with the rotating equipment due to improper operation.

[0008] Further, the overall width of the brush pressing block is smaller than the width of the base, so that the brush pressing block does not interfere with other components and does not contact the rotating equipment.

[0009] Further, the brush pressing block is U-shaped, the heights of the two ends of the brush pressing block are inconsistent, one side of the high protrusion directly contacts the base, and the other side of the low protrusion serves as a limiting block of the brush base and clamps the brush with the brush base between the brush pressing block and the base.

[0010] Further, the brush, the brush base, and the brush pressing block are annular and surround the circumference of the base.

[0011] Further, the brush is made of a flexible non-metallic material.

[0012] Further, the width of the brush should ensure that the brush can contact the rotating equipment and does not affect the normal rotation of the rotating equipment.

[0013] The utility model has the advantages of:

[0014] The utility model provides a kind of flexible sealing device of aircraft external rotating equipment gap. Its base is fixed basic structure, middle hole, rotating equipment is stretched from base hole, adopt brush pressure block to be clamped with base on base with base, and brush pressure block is fixed with base using fastener, brush, brush base, brush pressure block are annular, surround rotating equipment perimeter, it is convenient to install both fill the gap between rotating equipment and base, and also do not hinder equipment rotation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is flexible sealing device structure diagram of external rotating equipment gap;

[0016] Among them:

[0017] Base-1, brush pressure block-2, brush base-3, brush-4, fastener-5. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantage of the utility model implementation more clear, the technical scheme in the utility model embodiment will be described in more detail below by combining with the utility model embodiment. In the example, same or similar designations mean same or similar elements or elements with same or similar functions throughout. The described embodiments are part of the embodiments of the utility model, not all. The described embodiments are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. The embodiments of the utility model will be described in detail below.

[0019] As Figure 1 Shown, provide a kind of flexible sealing device of aircraft external rotating equipment gap, including base 1, brush pressure block 2, brush base 3, brush 4, fastener 5;The base 1 is the basic structure of hole, fixed immovably, rotating equipment is stretched from base 1 hole, rotates in hole range;The brush 4 is in the gap between rotating equipment and base;Brush 4 side has brush base 3, brush base 3 is placed in the recess of brush pressure block 2, brush pressure block 2 is clamped with brush base 3 in brush pressure block 2 and base 1 between brush 4, and fixed using fastener 5;

[0020] In a certain embodiment of the utility model, the base 1 is made of non-metallic material, to avoid improper operation, contact with rotating equipment, cause damage to rotating equipment.

[0021] The overall width of the brush pressing block 2 is less than the width of the base body 1 in the embodiment of the utility model, interference with other components is avoided, and contact with the rotating device is also avoided.

[0022] In the embodiment of the utility model, the brush pressing block is U-shaped, the heights of the two ends are inconsistent, the high protrusion side directly contacts the base body 1, and the low protrusion side is used as the limiting block of the brush base 3, and the brush 4 with the brush base 3 is clamped between the brush pressing block 2 and the base body 1.

[0023] In the embodiment of the utility model, the brush 4, the brush base 3 and the brush pressing block 2 are all annular and surround the base body 1.

[0024] In the embodiment of the utility model, the brush 4 is made of flexible non-metallic material.

[0025] In the embodiment of the utility model, the width of the brush 4 should ensure that the brush 4 can contact the rotating device and does not affect the normal rotation of the rotating device.

[0026] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application should be the general meaning understood by the general skilled person in the field to which the application belongs. The words indicating the relative direction or position relationship in the description of the application, such as "up", "down", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like, are only used to indicate the relative direction or position relationship, and not to imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the described object changes, the relative position relationship may also change accordingly, so it cannot be understood as a limitation on the application. The "first", "second", "third" and the like used in the description of the application are only for the purpose of description, to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "an" or "the" and the like used in the description of the application should not be understood as an absolute limitation on the quantity, but should be understood as the existence of at least one. The "include" or "contain" and the like used in the description of the application mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.

[0027] In addition, it needs to be explained that, unless otherwise explicitly specified and limited, the "installation", "connection", "connection" and similar words used in the description of the application should be understood broadly, for example, the connection can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements, the person skilled in the art can understand its specific meaning in the application according to the specific situation.

[0028] The above is only a specific embodiment of the present application and is not used to limit the present application. Any person skilled in the art can make changes or modifications to the equivalent embodiments within the spirit and principles of the present application, and apply them to other fields. However, any simple modification, equivalent change and improvement made to the above embodiments according to the technical essence of the present application should be included in the protection scope of the present application.

Claims

1. A flexible seal for an aircraft outboard rotating equipment gap, comprising: The utility model relates to a rotating device, including base, brush press block, brush base, brush, fastener, the base is the basic structure of the opening, fixedly, rotating equipment extends from the base opening, rotates in the hole range, the brush is filled in the gap between rotating equipment and base, one side of brush has brush base, brush base is placed in the groove of brush press block, brush press block clamps the brush with brush base between brush press block and base, and adopts fastener to fix.

2. The apparatus of claim 1, wherein, The base is made of non-metallic material.

3. The apparatus of claim 1, wherein, The overall width of the brush press block is less than the width of the base.

4. The apparatus of claim 1, wherein, The brush press block is U-shaped, and the heights of the two ends are inconsistent. The high protrusion side directly contacts the base, and the low protrusion side serves as a limiting block of the brush base and clamps the brush with the brush base between the brush press block and the base.

5. The apparatus of claim 1, wherein, The brush, the brush base, and the brush press block are all annular and surround the circumference of the base.

6. The apparatus of claim 1, wherein, The brush is made of flexible non-metallic material.

7. The apparatus of claim 1, wherein, The width of the brush should ensure that the brush can contact the rotating device without affecting the normal rotation of the rotating device.