Sealing strip for sealing control plane and stabilizing plane

Abstract

The utility model belongs to the field of airplanes and is used for sealing a gap between a stabilizer and a movable control surface in an airplane airfoil. Relates to a sealing strip for sealing between a control plane and a stabilizing plane. Comprising an outer fabric (1), rubber (3), a metal plate (4) and an inner fabric (5), wherein the outer surface of the metal plate (4) is wrapped by an inner side fabric (5), the wrapping length is larger than the length of the metal plate (4), a wrapping gap is filled with rubber (3), the outer surface of the inner side fabric (5) is wrapped by an outer side fabric (1), and a molded surface wrapped by the outer side fabric (1) is matched with a gap formed between a stabilizer and a control surface. And a gap between the inner side fabric (5) and the outer side fabric (1) is filled with rubber (3). The rubber sealing strip is simple in structure, easy to manufacture and convenient to assemble. The sealing device is installed on a stabilizing plane of the airfoil and attached to the front edge of the movable control plane, and the sealing requirement of the airfoil is met.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft, and is used for sealing the gap between the stabilizer and the movable rudder in the wing of the aircraft, and relates to a sealing strip used for sealing between the rudder and the stabilizer. Background Art

[0002] The wing surface of an aircraft includes the horizontal tail, vertical tail, and wing, which contains a fixed stabilizer and a movable rudder. There is a gap between the stabilizer and the rudder. If this gap is not sealed, it will seriously affect the aerodynamic efficiency of the wing surface and reduce the performance of the aircraft. Therefore, sealing this gap is one of the key contents in wing surface design.

[0003] The movable control surfaces of the wing include flaps, sub-flaps, ailerons, etc. The sealing of the gap between the wing stabilizer and the movable control surfaces mainly affects the lift of the aircraft; the movable control surfaces of the horizontal tail include the elevator, and the sealing between the horizontal tail stabilizer and the elevator affects the control surface efficiency of the elevator and affects the pitch performance; the movable control surfaces of the vertical tail include the rudder, and the sealing between the vertical tail stabilizer and the rudder affects the control surface efficiency of the rudder and affects the heading adjustment performance; the sealing at any position has a great influence on the performance of the aircraft. Generally, the stabilizer and the movable control surfaces are sealed with sealing strips, but most of the existing solutions use a single-point sealing solution to design the sealing strip, which has a poor sealing effect on the gap and is not easy to assemble. Utility Model Content

[0004] Purpose of the utility model

[0005] Provided is a sealing strip for sealing between a rudder surface and a stabilizer surface. The rubber sealing strip has a simple structure, is easy to manufacture, and is convenient to assemble. It is installed on the stabilizer surface of the wing surface and fits with the leading edge of the movable rudder surface, thus meeting the sealing requirements of the wing surface.

[0006] Technical Solution

[0007] A sealing strip for sealing between a rudder surface and a stabilizer surface, characterized in that it comprises an outer fabric (1), rubber (3), a metal plate (4), and an inner fabric (5); wherein the outer surface of the metal plate (4) is coated with the inner fabric (5), the coating length is greater than the length of the metal plate (4), the coating gap is filled with rubber (3), the outer surface of the inner fabric (5) is coated with the outer fabric (1), the profile of the outer fabric (1) is matched with the gap formed between the stabilizer surface and the rudder surface, and the gap between the inner fabric (5) and the outer fabric (1) is filled with rubber (3).

[0008] Furthermore, the outer fabric (1) is a low-friction fabric, which is used to reduce the friction force when the sealing strip and the rudder surface move relative to each other. The low-friction fabric is domestically made D1000, which can be replaced by foreign low-friction fabric.

[0009] Furthermore, the rubber (3) is used to ensure the elasticity of the sealing strip and reduce the weight of the sealing strip.

[0010] Furthermore, the metal plate (4) is arranged on a side of the sealing strip away from the heading, and is used for installing fasteners when installing the sealing strip.

[0011] Furthermore, the inner fabric (5) is a high-strength fabric for increasing the rigidity of the sealing strip. The high-strength fabric is domestically produced D2000 and can be replaced by foreign high-strength fabric.

[0012] Furthermore, it comprises fastener holes, wherein the fastener holes are arranged on the sealing strip and used for installing fasteners, and there are a plurality of fastener holes.

[0013] Furthermore, the covering length of the inner fabric (5) should meet the requirements of the sealing length between the rudder surface and the stabilizer surface.

[0014] Furthermore, a cavity (7) is provided on the upper surface of the outer fabric (1), and the cavity (7) is used for contacting and sealing with the rudder surface.

[0015] Furthermore, the cavity (7) is circular, and the thickness of the rubber (3) in the cavity (7) is not less than 1.5 mm.

[0016] The beneficial effects of this application are:

[0017] The existing sealing strip solution cannot meet the sealing requirements well. A sealing strip for sealing between the rudder surface and the stabilizer surface is provided. The rubber sealing strip has a simple structure, is easy to manufacture, and is convenient to assemble. It is installed on the stabilizer surface of the wing surface and fits with the leading edge of the movable rudder surface, which solves the sealing requirements of the wing surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a sealing strip used for sealing between a rudder surface and a stabilizer surface provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the assembly of the sealing strip of the utility model;

[0020] Description of reference numerals:

[0021] An outer fabric (1), rubber (3), a metal plate (4), an inner fabric (5), and a cavity (7). DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the embodiments. The following are only some embodiments of the utility model, not all embodiments. Based on the embodiments of 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.

[0023] In order to better understand the function and purpose of the present invention, and not to be regarded as a restrictive solution, a detailed description of the embodiments of the present invention is further given below based on the accompanying drawings.

[0024] See also Figure 1 to Figure 2 As shown, the utility model provides a sealing strip for sealing between a rudder surface and a stabilizer surface. The main body is a rubber sealing strip wrapped with fabric, which comprises an outer fabric (1), rubber (3), a metal plate (4), an inner fabric (5), a cavity (7), etc.

[0025] The outer fabric (1) covers the rubber (3) surface of the sealing strip, and the outer fabric (1) is a fabric with a low friction coefficient; the rubber (3) is used to ensure the elasticity of the sealing strip and reduce the weight of the sealing strip.

[0026] The metal plate (4) is arranged on the front side of the sealing strip and is used for installing the fasteners when installing the sealing strip.

[0027] The inner fabric (5) is laid between the metal plate (4) and the outer fabric (1). The inner fabric (5) is a fabric with relatively high strength and is used to increase the rigidity of the sealing strip.

[0028] The cavity (7) is circular, and the thickness of the rubber in the cavity is not less than 1.5 mm.

[0029] Optionally, the sealing strip for sealing between the rudder surface and the stabilizer surface further includes: region A;

[0030] The area A is the surface of the sealing strip at the metal plate (4); the area A is connected to the stabilizer fixing structure using fasteners.

[0031] Optionally, the sealing strip for sealing between the rudder surface and the stabilizer surface further includes: region B;

[0032] The region B is a section of the outer fabric (1) located at the edge of the sealing strip, and the region B is in contact with the rudder surface, playing the role of sealing the stabilizer surface and the rudder surface.

[0033] Optionally, the sealing strip for sealing between the rudder surface and the stabilizer surface further includes: region C;

[0034] The region C is a section of the cavity (7), and the region C fits the rudder surface and also plays a role in sealing the stabilizer surface and the rudder surface.

[0035] Optionally, the sealing strip for sealing between the rudder surface and the stabilizer surface further comprises: at least one row of fastener holes;

[0036] The fastener holes are used to install fasteners used to fix the sealing strip.

[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here. The specific implementation methods described above further explain the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A sealing strip for sealing between a rudder surface and a stabilizer surface, characterized in that: The invention comprises an outer fabric (1), rubber (3), a metal plate (4), and an inner fabric (5); wherein the outer surface of the metal plate (4) is coated with the inner fabric (5), the coating length is greater than the length of the metal plate (4), the coating gap is filled with rubber (3), the outer surface of the inner fabric (5) is coated with the outer fabric (1), the profile of the outer fabric (1) is matched with the gap formed between the stabilizer and the rudder surface, and the gap between the inner fabric (5) and the outer fabric (1) is filled with rubber (3).

2. The sealing strip according to claim 1, characterized in that: The outer fabric (1) is a fabric with a low friction coefficient.

3. The sealing strip according to claim 1, characterized in that: The metal plate (4) is arranged on a side of the sealing strip away from the heading, and is used for installing fasteners when installing the sealing strip.

4. The sealing strip according to claim 1, characterized in that: The inner fabric (5) is a high-strength fabric used to increase the rigidity of the sealing strip.

5. The sealing strip according to claim 1, characterized in that: It also includes fastener holes, which are arranged on the sealing strip and are used for installing fasteners. There are several fastener holes.

6. The sealing strip according to claim 1, characterized in that: The covering length of the inner fabric (5) should meet the requirements of the sealing length between the rudder surface and the stabilizer surface.

7. The sealing strip according to claim 1, characterized in that: The upper surface of the outer fabric (1) is provided with a cavity (7), and the cavity (7) is used for contacting and sealing with the rudder surface.

8. The sealing strip according to claim 7, characterized in that: The cavity (7) is circular; the thickness of the rubber (3) in the cavity (7) is not less than 1.5 mm.

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