A connection structure of an aircraft boarding door and a door frame

Abstract

The utility model discloses a kind of connecting structure of aircraft boarding gate and door frame, including boarding gate, frame and door frame;The frame is set at the outer periphery of the boarding gate to form boarding gate frame integrated structure, the door frame is connected with the boarding gate frame integrated structure, and the connecting position of the boarding gate frame integrated structure is located at the frame;The cross section of the frame is "L" type structure. One side of "L" type structure surrounds the outer periphery of the boarding gate, the other side is folded outward, for being fixed with door frame. The utility model increases frame, boarding gate and frame are first integrated assembly, and debugging is carried out on ground. After debugging is completed, boarding gate and frame are assembled as integrated structure with fuselage door frame, compared with the connecting mode of current conventional boarding gate and door frame, the process separation surface of two is changed from between boarding gate and door frame to between frame and door frame, solve the problem of conventional scheme door and door frame connection deformation mismatch;Frame and door frame adopt sleeve design, and the stiffness of door frame is increased together.

Description

Technical Field

[0001] This utility model relates to the field of aircraft, and in particular to a connection structure between an aircraft boarding door and a door frame. Background Technology

[0002] In the structural design of large civil aircraft, the boarding door is a crucial component. It's not merely a simple opening, but a critical interface connecting the aircraft to the terminal (or ground), vital for passenger experience, operational efficiency, and safety. Due to the large opening in the fuselage, reinforced design and a robust structural seal are essential. Existing aircraft boarding doors consist of an inner frame and an outer frame, with an outer frame surrounding the inner frame. A crossbeam connects the inner and outer frames, and a door frame is positioned within the boarding door opening area. The boarding door and door frame are connected by stop blocks / pins. After ground testing, the boarding door needs to be installed on the fuselage and tested again along with the door frame. The testing process is relatively complex and time-consuming.

[0003] Therefore, there is an urgent need to provide a solution for the connection structure between the aircraft boarding door and the door frame. Utility Model Content

[0004] To address the above problems, this utility model provides a connection structure between an aircraft boarding door and its frame, enabling rapid connection between the aircraft boarding door and the frame.

[0005] According to a first aspect of the present invention, a connection structure between an aircraft boarding door and a door frame is provided, comprising a boarding door, a frame, and a door frame.

[0006] The frame is disposed on the outer periphery of the boarding gate to form an integrated boarding gate frame structure. The door frame is connected to the integrated boarding gate frame structure, and the connection position between the door frame and the integrated boarding gate frame structure is located at the frame.

[0007] The frame has an "L" shaped cross-section. One side of the "L" shape surrounds the outer perimeter of the boarding door, while the other side folds outward to secure it to the door frame.

[0008] In the above scheme, the frame is connected to the outer edge of the fuselage at the door frame and / or the web plate.

[0009] In the above solution, the connecting surfaces of the frame and the door frame are fitted together to form a sealing surface.

[0010] In the above scheme, the frame and the door frame are rigidly connected.

[0011] In the above solution, the frame and the door frame are fixed together by fasteners.

[0012] In the above scheme, the fasteners include screws, bolts and rivets.

[0013] In the above scheme, the gap between the frame and the door frame is adjusted by a spacer.

[0014] In the above scheme, the spacer includes a gasket and an adhesive layer.

[0015] In the above scheme, the frame is made of aluminum alloy.

[0016] In the above scheme, the rigidity of the integrated structure of the boarding gate frame is not less than the rigidity of the boarding gate.

[0017] The beneficial effects of this utility model are:

[0018] This utility model discloses a connection structure for an aircraft boarding door and its frame. It adds a retaining frame, and the boarding door and retaining frame are first assembled as a single unit and tested on the ground. After testing, the boarding door and retaining frame are assembled as a single structure with the fuselage door frame. Compared to the current traditional connection method, this changes the separation surface from between the boarding door and the door frame to between the retaining frame and the door frame, solving the problem of mismatched deformation during the connection of the door and door frame in traditional solutions. The retaining frame and door frame adopt a nested design, jointly increasing the rigidity of the door frame. Attached Figure Description

[0019] 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is an overall structural diagram of the connection structure between the aircraft boarding door and the door frame in this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the aircraft boarding door and the door frame in this utility model.

[0022] Figure 3 This is a schematic diagram of the frame of the connection structure between the aircraft boarding door and the door frame in this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the aircraft boarding door and the door frame in this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the aircraft boarding door and the door frame in this utility model.

[0025] Figure 6 This is a schematic diagram of the connection structure between the aircraft boarding door and the door frame in this utility model. Wherein, boarding door-1; frame-2; door frame-3.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0028] The terms "first," "second," etc., used in this disclosure are for distinguishing similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0029] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0030] Multiple, including two or more.

[0031] And / or, it should be understood that, for the purposes of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0032] like Figures 1-4 As shown, one embodiment of the present invention provides a connection structure between an aircraft boarding door and a door frame, including a boarding door 1, a frame 2, and a door frame 3.

[0033] The frame 2 is set on the outer periphery of the boarding door 1 to form an integrated boarding door frame structure. The door frame 3 is connected to the integrated boarding door frame structure, and the connection position with the integrated boarding door frame structure is located at the frame 2. The cross-section of the frame 2 is an "L" shaped structure. One side of the "L" shaped structure surrounds the outer periphery of the boarding door 1, and the other side is folded outward for fixing to the door frame 3.

[0034] This utility model adds a frame 2. The boarding door 1 and the frame 2 are first assembled as a whole and then tested on the ground. After testing, the boarding door 1 and the frame 2 are assembled with the fuselage door frame 3 as a whole structure. Compared with the current traditional connection method of boarding door 1 and door frame 3, the process separation surface between the two is changed from between boarding door 1 and door frame 3 to between frame 2 and door frame 3, which solves the problem of mismatch in deformation when the door and door frame 3 are connected in the traditional solution. The frame 2 and door frame 3 adopt a fitting design, which together increases the rigidity of door frame 3.

[0035] Furthermore, the outer edge of the fuselage and / or the web of the door frame 2 are connected to the door frame 3. The connecting surfaces of the door frame 2 and the door frame 3 are fitted together to form a sealing seal. This achieves a sealing effect between the boarding door 1 and the door frame 3, and the fitted surfaces facilitate the connection between the door frame 2 and the door frame 3.

[0036] In this embodiment, the frame 2 and the door frame 3 are rigidly connected and fixed together by fasteners. These fasteners include screws, bolts, and rivets.

[0037] In this preferred embodiment, the gap between the enclosure frame 2 and the door frame 3 is adjusted by a spacer. The spacer includes a shim and an adhesive layer. Since both the integrated structure of the boarding door enclosure frame and the door frame 3 are of fixed dimensions, if the gap between the enclosure frame 2 and the door frame 3 is too large, it can be adjusted using the spacer, such as by adding shims or applying adhesive to reduce the gap.

[0038] In this preferred embodiment, the frame 2 is made of aluminum alloy. Specifically, during the production of the frame 2, tooling is used to simulate the rigidity of the actual aircraft frame. Therefore, the frame 2 has rigidity, and the rigidity of the integrated structure formed by the frame 2 and the boarding door 1 is not less than the rigidity of the boarding door 1.

[0039] Combined Figure 5 and Figure 6 As shown, the connection method between the aircraft boarding door 1 and the door frame 3 provided by this utility model is as follows:

[0040] Position the frame 2 on the assembly fixture; assemble the frame 2 and the boarding door 1 into an integrated structure and perform debugging; rigidly connect the integrated structure formed by the frame 2 and the boarding door 1 to the door frame 3 and fix it with fasteners; adjust the gap between the frame 2 and the door frame 3 using spacers.

[0041] During the assembly process, the frame 2 and boarding door 1 can be assembled into an integrated structure and debugged before being transported to the fuselage for on-site installation. This improves the installation efficiency between the fuselage and the integrated structure of frame 2 and boarding door 1, eliminating the need for debugging on the fuselage and making debugging between frame 2 and boarding door 1 more convenient.

[0042] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0043] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0044] Through the above description of the embodiments, those skilled in the art can clearly understand that the above implementation methods can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this utility model, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this utility model.

[0045] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A connection structure between an aircraft boarding door and a door frame, characterized in that, This includes boarding gates, bag frames, and door frames; The frame is disposed on the outer periphery of the boarding gate to form an integrated boarding gate frame structure. The door frame is connected to the integrated boarding gate frame structure, and the connection position between the door frame and the integrated boarding gate frame structure is located at the frame. The frame has an "L" shaped cross-section. One side of the "L" shaped structure surrounds the outer perimeter of the boarding door, while the other side folds outward to be fixed to the door frame.

2. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The frame is connected to the outer edge of the fuselage at the door frame and / or the web plate.

3. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The connecting surfaces of the frame and the door frame fit together to form a sealed fit.

4. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The frame and the door frame are rigidly connected.

5. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The frame and the door frame are fixed together by fasteners.

6. The connection structure between the aircraft boarding door and the door frame according to claim 5, characterized in that, The fasteners include screws, bolts, and rivets.

7. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The gap between the frame and the door frame is adjusted by a spacer.

8. The connection structure between the aircraft boarding door and the door frame according to claim 7, characterized in that, The spacer includes a gasket and an adhesive layer.

9. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The frame is made of aluminum alloy.

10. The connection structure between the aircraft boarding door and the door frame according to claim 1, characterized in that, The rigidity of the integrated frame structure of the boarding gate is not less than the rigidity of the boarding gate itself.

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