An aircraft conduit compensator

Abstract

The utility model provides an aviation pipeline compensator, including circular interface section, transition section and square interface section that connect gradually and integrative forming, wherein, square interface section is hollow square tubular structure for adapting square pipe, circular interface section is hollow circular tubular structure for adapting circular pipe, the little end of transition section is connected with circular interface section, and its big end is connected with square interface section. The utility model discloses a compensator adopts integrative forming structure, can connect circular pipe and square pipe directly, reduces the number of intermediate connecting piece, and then reduces the number of sealing surface, reduces the risk of sealing failure, improves the reliability of ventilation system, and the installation process is more simple and fast, saves installation time and installation space, improves installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of aircraft manufacturing technology, and in particular to an aircraft pipeline compensator. Background Technology

[0002] In the ventilation systems of aircraft cargo holds or passenger cabins, ventilation ducts mostly use a combination of rectangular and circular ducts. Traditional compensators cannot simultaneously accommodate the interface types of rectangular and circular ducts. Therefore, existing rectangular ducts are connected to rectangular compensators, and the rectangular compensators are connected to the circular ducts through additional intermediate connectors such as reducing joints.

[0003] Because rectangular compensators require connecting circular pipes via additional intermediate connectors, the number of sealing surfaces increases, raising the risk of seal failure. Furthermore, the installation process is cumbersome, and the intermediate connectors require additional installation space, making installation particularly difficult in space-constrained areas such as the top of cargo holds.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an aviation pipeline compensator to solve the technical problems of existing rectangular compensators, which require additional intermediate connectors to connect to circular pipes, increasing the number of sealing surfaces, increasing the risk of seal failure, and making installation cumbersome. Furthermore, the intermediate connectors require additional installation space, making installation particularly difficult in space-constrained areas such as the cargo hold roof. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides an aviation pipeline compensator, comprising a circular interface section, a transition section, and a square interface section that are sequentially connected and integrally formed; wherein, the square interface section is a hollow square tubular structure for adapting to square pipes; the circular interface section is a hollow circular tubular structure for adapting to circular pipes; the small end of the transition section is connected to the circular interface section, and its large end is connected to the square interface section.

[0008] Preferably, the transition section includes a first transition portion and a second transition portion connected sequentially along a direction where the inner diameter gradually increases. The first transition portion and the second transition portion are octahedral structures. The first end of the first transition portion is a rounded end that matches the circular interface section, and the second end of the first transition portion is a square end with rounded corners. The first end of the second transition portion is a square end with rounded corners that matches the second end of the first transition portion, and the second end of the second transition portion is a square end that matches the square interface section.

[0009] Preferably, the transition section further includes an intermediate transition portion located between the first transition portion and the second transition portion, for connecting the second end of the first transition portion and the first end of the second transition portion.

[0010] Preferably, the intermediate transition section has a corrugated structure.

[0011] Preferably, the circular interface segment and the square interface segment have radial support rods located inside and near the transition segment.

[0012] Preferably, the interface end of the circular interface segment is provided with a circular flange for connecting the flange of the circular pipe; the interface end of the square interface segment is provided with a square flange for connecting the flange of the square pipe.

[0013] Preferably, an axial tie rod is provided between the circular flange and the square flange.

[0014] Preferably, sealing gaskets are provided on the circular flange and the square flange.

[0015] The preferred technical solution of this utility model can also produce at least the following technical effects:

[0016] This invention effectively avoids the technical problems of existing rectangular compensators, which require additional intermediate connectors to connect to circular pipes, increasing the number of sealing surfaces, increasing the risk of seal failure, and making installation cumbersome. The intermediate connectors also require additional installation space, making installation particularly difficult in space-constrained areas such as cargo hold roofs. This invention provides an aviation pipeline compensator, comprising a circular interface section, a transition section, and a square interface section connected sequentially and integrally formed. The square interface section is a hollow square tubular structure for adapting to square pipes; the circular interface section is also a hollow circular tubular structure for adapting to circular pipes; the small end of the transition section connects to the circular interface section, and its large end connects to the square interface section. This compensator uses an integrally formed structure, allowing direct connection between circular and square pipes, reducing intermediate connection links, thereby reducing the number of sealing surfaces, lowering the risk of seal failure, improving the reliability of the ventilation system, simplifying and speeding up installation, saving installation time and space, and improving installation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an aviation pipeline compensator provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the transition section of an aviation pipeline compensator provided by this utility model.

[0020] In the picture:

[0021] 1. Circular interface section; 11. First radial support rod; 2. Transition section; 21. First transition part; 211. First surface a; 212. First surface b; 22. Intermediate transition part; 23. Second transition part; 231. Second surface a; 232. Second surface b; 3. Square interface section; 4. Axial tie rod; 5. Sealing gasket; 6. Circular flange; 61. First mounting hole; 7. Square flange; 71. Second mounting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figures 1-2 As shown, this utility model provides an aviation pipeline compensator, including a circular interface section 1, a transition section 2, and a square interface section 3 that are connected in sequence and integrally formed; wherein, the square interface section 3 is a hollow square tubular structure for adapting to square pipes; the circular interface section 1 is a hollow circular tubular structure for adapting to circular pipes; the small end of the transition section 2 is connected to the circular interface section 1, and its large end is connected to the square interface section 3.

[0024] The compensator of this utility model adopts an integrated molding structure, which can directly connect circular and square pipes, reducing intermediate connection links, thereby reducing the number of sealing surfaces, reducing the risk of seal failure, improving the reliability of the ventilation system, making the installation process simpler and faster, saving installation time and space, and improving installation efficiency.

[0025] As an optional implementation, the transition section 2 includes a first transition portion 21 and a second transition portion 23 connected sequentially along a direction where the inner diameter gradually increases. The first transition portion 21 and the second transition portion 23 have an octahedral structure. The first end of the first transition portion 21 is a round end that matches the circular interface section 1, and the second end of the first transition portion 21 is a square end with rounded corners. The first end of the second transition portion 23 is a square end with rounded corners that matches the second end of the first transition portion 21, and the second end of the second transition portion 23 is a square end that matches the square interface section 3.

[0026] Furthermore, the first transition portion 21 includes a trapezoidal first surface a211 and a triangular first surface b212 that are alternately connected circumferentially. The long side of the first surface a211 is an arc shape adapted to the circular interface segment 1, and the short side of the first surface a211 is a straight line. The tip of the first surface b212 is located close to the circular interface segment 1, and the base of the first surface b212 is an arc shape. The long side of the first surface a211 and the tip of the first surface b212 together form a rounded end. The short side of the first surface a211 and the base of the first surface b212 together form a square end with rounded corners.

[0027] The second transition section 23 includes a trapezoidal second surface a231 and a triangular-like second surface b232 that are alternately connected circumferentially. The long side of the second surface a231 is straight and connects to the square interface segment 3, and the short side of the second surface a231 is also straight. The tip of the second surface b232 is located close to the square interface segment 3, and the bottom edge of the second surface b232 is rounded. The long side of the second surface a231 and the tip of the second surface b232 together form a square end, and the short side of the second surface a231 and the bottom edge of the second surface b232 together form a square end with rounded corners.

[0028] As an optional implementation, the transition section 2 further includes an intermediate transition section 22, which is located between the first transition section 21 and the second transition section 23, and is used to connect the second end of the first transition section 21 and the first end of the second transition section 23.

[0029] Furthermore, both ends of the intermediate transition section 22 are square ends with rounded corners and have the same specifications.

[0030] This design allows transition segment 2 to smoothly transition from a circle to a square in shape, improving the continuity and smoothness of the internal structure of transition segment 2.

[0031] As an optional implementation, the intermediate transition section 22 has a corrugated structure.

[0032] This design enhances the elastic deformation capacity of the intermediate transition section 22, allowing it to better adapt to changes in the pipeline.

[0033] As an optional implementation, radial support rods are provided inside the circular interface segment 1 and the square interface segment 3, near the transition segment 2.

[0034] Furthermore, a first radial support rod 11 is provided near the first transition portion 21 in the circular interface segment 1. The first radial support rod 11 extends in the vertical direction and is connected to the inner wall surface of the circular interface segment 1.

[0035] A second radial support rod is provided at the position between the square interface segment 3 and the second transition portion 23. The number of the second radial support rod is at least one, and it extends in the same direction as the first radial support rod 11 and is connected to the inner wall surface of the square interface segment 3.

[0036] Under axial pressure, the first radial support rod 11 and the second radial support rod can reduce wrinkling or collapse at the connection points between the circular interface section 1 and the first transition part 21 and the square interface section 3 and the second transition part 23.

[0037] As an optional implementation, the interface end of the circular interface section 1 is provided with a circular flange 6 for connecting a flange of a circular pipe; the interface end of the square interface section 3 is provided with a square flange 7 for connecting a flange of a square pipe.

[0038] Furthermore, the circular flange 6 is provided with a plurality of first mounting holes 61 that are adapted to the flange holes of the circular pipe. Fasteners such as bolts pass through the first mounting holes 61 and the flange holes of the circular pipe to make the circular interface section 1 firmly connected to the circular pipe, which is convenient for installation and disassembly.

[0039] The square flange 7 is provided with multiple second mounting holes 71 that are adapted to the flange holes of the square tube. Bolts and other fasteners pass through the second mounting holes 71 and the flange holes of the square tube to make the square interface section 3 firmly connected to the square tube, which is convenient for installation and disassembly.

[0040] As an optional implementation, an axial tie rod 4 is provided between the circular flange 6 and the square flange 7.

[0041] Furthermore, the circular flange 6 and the square flange 7 are provided with a first connecting hole and a second connecting hole for the axial tie rod 4 to pass through. The two ends of the axial tie rod 4 pass through the first connecting hole and the second connecting hole respectively and are connected to the flange of the circular tube and the flange of the square tube by fasteners such as nuts.

[0042] As an optional implementation, a sealing gasket 5 is embedded in the circular flange 6 and the square flange 7.

[0043] This configuration improves the sealing performance of the connections between the circular flange 6 and the flange of the circular pipe, as well as between the square flange 7 and the flange of the square pipe.

[0044] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0045] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "a particular example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An aviation pipeline compensator, characterized in that, It includes a circular interface segment, a transition segment, and a square interface segment that are connected in sequence and integrally formed; wherein, the square interface segment is a hollow square tubular structure for adapting to a square tube; the circular interface segment is a hollow circular tubular structure for adapting to a circular tube; the small end of the transition segment is connected to the circular interface segment, and its large end is connected to the square interface segment.

2. An aircraft conduit compensator as claimed in claim 1, wherein, The transition section includes a first transition portion and a second transition portion connected sequentially along a direction where the inner diameter gradually increases. The first transition portion and the second transition portion are octahedral structures. The first end of the first transition portion is a rounded end that matches the circular interface section, and the second end of the first transition portion is a square end with rounded corners. The first end of the second transition portion is a square end with rounded corners that matches the second end of the first transition portion, and the second end of the second transition portion is a square end that matches the square interface section.

3. An aircraft conduit compensator as claimed in claim 2, wherein, The transition section further includes an intermediate transition section located between the first transition section and the second transition section, which is used to connect the second end of the first transition section and the first end of the second transition section.

4. An aircraft conduit compensator as claimed in claim 3, wherein, The intermediate transition section has a corrugated structure.

5. An aircraft conduit compensator as defined in claim 1 wherein, The circular interface segment and the square interface segment have radial support rods located inside and near the transition segment.

6. An aircraft conduit compensator as defined in claim 1, wherein, The circular interface section has a circular flange at its interface end for connecting to a circular pipe flange; the square interface section has a square flange at its interface end for connecting to a square pipe flange.

7. An aircraft conduit compensator as claimed in claim 6, wherein, An axial tie rod is provided between the circular flange and the square flange.

8. An aviation pipeline compensator according to claim 7, characterized in that, Sealing gaskets are provided on the circular flange and the square flange.

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