A two-way release body deformation antenna mounting rack connecting joint

Abstract

The utility model relates to airborne antenna installation technical field especially relates to a kind of antenna mounting rack connecting joint that two direction release fuselage deformation. Including: lower connector, upper connector and adapter, the upper connector connecting hole of the adapter is vertically arranged with lower connector connecting ear piece. This structure creates a two-way movable flexible structure, so that the upper connector can be moved along the axis direction of upper connector connecting hole, while the adapter as a whole can drive the upper connector to move in the direction perpendicular to the axis. When the aircraft fuselage is curved or twisted due to flight load deformation, the joint can effectively release the structural stress generated thereby through two-way displacement, avoiding the risk of fatigue damage of the antenna mounting structure and the fuselage connection point, thereby effectively adapting to the fuselage deformation, releasing the structural stress, thereby avoiding the fatigue damage of the antenna and the fuselage connection point, and ensuring flight safety.

Description

Technical Field

[0001] This utility model relates to the field of airborne antenna installation technology, and in particular to an antenna mounting bracket connection joint that can release fuselage deformation in two directions. Background Technology

[0002] In the modern aviation field, high-speed, stable air-to-ground broadband communication has become crucial for improving flight experience and operational efficiency. The domestically produced Ka-band phased array satellite communication system, as a next-generation communication solution, has already completed installation and certification on aircraft such as the C909 and Boeing 737-800, and is planned for application on the C919 aircraft, marking a significant breakthrough for domestically produced high-performance antenna equipment in the civil aviation field. Consequently, the installation of such domestically produced phased array antennas on various domestic and imported aircraft will become a common and necessary retrofitting task.

[0003] Unlike traditional parabolic antennas, domestically produced phased array antennas are typically large-scale array structures. To securely mount them on the top or side of the aircraft fuselage and meet stringent airworthiness requirements such as aerodynamics and bird strike protection, a mounting architecture with multiple connection points is usually required, with a six-connector layout being a common design. This layout requires that while reliably securing the antenna equipment, the aircraft fuselage structure should not be excessively constrained. During flight, aircraft undergo minute deformations due to cabin pressurization, maneuvering loads, and thermal expansion and contraction. If the mounting structure is rigid, significant internal stress will be generated between the fuselage and the antenna, potentially leading to fatigue of the connection structure or damage to the fuselage over time. Therefore, the antenna mounting bracket must be able to "release" or "adapt" to this fuselage deformation in a specific direction.

[0004] Existing antenna mounting connector designs often only effectively release a single degree of freedom, such as allowing only forward / backward movement or only left / right deflection. However, for complex mounting structures like the aforementioned six-connector layout, the mechanical transmission path requires certain connection points to be able to accommodate both longitudinal and lateral displacements of the aircraft. Failure to meet this requirement may force fuselage deformation to concentrate at other connection points, resulting in excessive local stress and posing safety hazards. Summary of the Invention

[0005] (a) Technical problems to be solved This invention provides an antenna mounting bracket connection joint that can release fuselage deformation in two directions, overcoming the problem that existing antenna mounting joints can usually only release freedom in one direction, which can easily lead to stress concentration in fuselage deformation in multi-joint layout installation structures, posing safety hazards.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides an antenna mounting bracket connection connector that allows for the release of fuselage deformation in two directions, comprising: a lower connector, an upper connector, and an adapter. The lower connector is located at the lower end of the upper connector, and the lower connector and the upper connector are connected by an adapter. The lower connector is provided with a plurality of lower connector mounting holes; The upper connector is provided with a number of equipment tray mounting holes; The adapter is provided with a plurality of upper connector connection holes and two lower connector connection lugs, and the plurality of upper connector connection holes are arranged in parallel. The upper connector connection hole is perpendicular to the lower connector connection lug; The upper connector has a rectangular through hole at its center, the adapter is embedded in the upper connector, and the two outer walls of the upper connector are symmetrically provided with weight reduction grooves.

[0007] Preferably, the upper connector has two symmetrically arranged adapter connecting webs, and the adapter connecting webs have a plurality of adapter mounting holes arranged in parallel.

[0008] Preferably, the number of adapter mounting holes matches the number of upper connector connection holes, and a first connecting component is provided between the adapter mounting holes and the upper connector connection holes.

[0009] Preferably, the first connecting assembly includes: an upper connector bolt, an upper connector fixing nut, and a washer; The upper connector bolt passes through the adapter mounting hole and the upper connector connection hole provided on the two adapter connecting web plates. A washer is provided between the head of the upper connector bolt and the adapter connecting web plate. An upper connector fixing nut is connected to one side of the upper connector bolt. A washer is provided between the upper connector fixing nut and the adapter connecting web plate.

[0010] Preferably, the two lower connector connecting lugs are arranged opposite to each other, the lower connector has an outer edge web plate at its center, and the web plate has an adapter connecting hole.

[0011] Preferably, the web is embedded between two lower connector connecting lugs, the lower connector connecting lugs are provided with through holes, and a second connecting assembly is provided between the adapter connecting hole and the two lower connector connecting lugs.

[0012] Preferably, the second connecting assembly includes: an adapter bolt, an adapter retaining nut, a washer, and a spherical bearing; The adapter bolt passes through the two lower connector connecting lugs and the adapter connecting hole. A washer is provided between the head of the adapter bolt and the lower connector connecting lug. An adapter fixing nut is connected to one side of the adapter bolt. A washer is provided between the adapter fixing nut and the lower connector connecting lug. The outer wall of the adapter bolt is fitted with a spherical bearing, which is located in the adapter connection hole.

[0013] (III) Beneficial Effects This invention provides an antenna mounting bracket connector that can release fuselage deformation in two directions. It allows for connection between the upper connector connecting hole and the lower connector connecting lug, creating a movable structure. The connection between the upper connector connecting hole and the upper connector allows the upper connector to move along the axis of the upper connector connecting hole. Similarly, the connection between the lower connector connecting lug and the lower connector allows the adapter to move the upper connector in a direction perpendicular to the axis of the upper connector connecting hole. This allows the adapter to act as a flexible link to absorb and release the stress generated by the deformation when the aircraft fuselage bends or twists due to changes in air pressure or load during flight. This avoids the risk of fatigue damage at the antenna-fuselage connection point, effectively adapting to fuselage deformation, releasing structural stress, preventing fatigue damage at the antenna-fuselage connection point, and ensuring flight safety. Attached Figure Description

[0014] Figure 1 This invention provides a schematic diagram of an antenna mounting bracket connection joint structure that allows for the release of fuselage deformation in two directions. Figure 2 This diagram shows a top view of the antenna mounting bracket connection joint of the present invention, which allows for the release of fuselage deformation in two directions. Figure 3 This diagram shows a side view of the antenna mounting bracket connection joint of the present invention, which allows for the release of fuselage deformation in two directions. Figure 4 This diagram illustrates the connection structure between the upper connector and the adapter of an antenna mounting bracket that allows for two-way release of fuselage deformation, according to the present invention.

[0015] Wherein: 1: lower connector; 11: lower connector mounting hole; 2: upper connector; 21: equipment tray mounting hole; 22: upper connector bolt; 23: upper connector fixing nut; 24: washer; 25: weight reduction groove; 3: adapter; 31: adapter fixing nut; 32: spherical bearing; 33: adapter bolt. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] In the description of this utility model, it is necessary to understand that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "top", and "bottom" are all based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of this utility model and simplify the description, and is not intended to indicate or imply that the indicated component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0018] like Figure 1-4 As shown, this utility model provides an antenna mounting bracket connection connector that can release fuselage deformation in two directions, including: a lower connector 1, an upper connector 2, and an adapter 3; The lower connector 1 is located at the lower end of the upper connector 2, and the lower connector 1 and the upper connector 2 are connected by an adapter 3. The lower connector 1 is provided with several lower connector mounting holes 11, which are used to firmly fix the lower connector 1 to the aircraft fuselage. It should be noted that, in the absence of design restrictions, the lower connector mounting holes 11 can be arranged in a uniform manner. The uniform arrangement of several lower connector mounting holes 11 helps to distribute the load, enhance the connection rigidity and stability, ensure the stable installation of the antenna equipment in the external environment, and meet the airworthiness requirements.

[0019] The upper connector 2 is provided with a plurality of equipment tray mounting holes 21, which are used to install equipment trays for connecting antenna components; The upper connector 2 has a rectangular through hole at its center. The outer walls on the left and right sides of the rectangular through hole are symmetrically provided with weight-reducing grooves 25, which effectively reduce the structural weight while maintaining the overall strength. The other two outer walls of the rectangular through hole are two adapter connecting webs symmetrically provided in the upper connector 2. The adapter connecting webs are used for assembly with the adapter 3.

[0020] The adapter 3 is embedded in the rectangular through hole and serves as the core component for releasing the fuselage deformation function. The adapter 3 is the core component for releasing the fuselage deformation function. The adapter 3 is provided with several upper connector connection holes and two lower connector connection lugs. The several upper connector connection holes are arranged in parallel and the upper connector connection holes and the lower connector connection lugs are arranged perpendicularly. The adapter connection web provided in the upper connector 2 is used to connect with the adapter 3. Each adapter connection web is provided with several parallel adapter mounting holes. The number of adapter mounting holes matches the number of upper connector connection holes. The adapter mounting holes on the two adapter connection webs are symmetrically arranged. like Figure 4As shown, the adapter 3 is connected to the upper connector 2 through several sets of first connecting components. In actual use, there are usually two sets. The adapter connecting web and the adapter 3 are connected through the first connecting components. The first connecting components include: upper connector bolt 22, upper connector fixing nut 23 and washer 24. The upper connector bolt 22 passes through the adapter mounting hole and the upper connector connecting hole respectively provided on the two adapter connecting webs. The washer 24 is provided between the head of the upper connector bolt 22 and the adapter connecting web. The upper connector fixing nut 23 is connected to one side of the upper connector bolt 22. The washer 24 is provided between the upper connector fixing nut 23 and the adapter connecting web. The upper connector fixing nut 23 fixes the upper connector bolt 22.

[0021] The adapter 3 has two symmetrically arranged lower connector connecting ears, each with a through hole. The lower connector 1 has an outer edge web plate at its center, with an adapter connecting hole on the web plate. The web plate is embedded between the two lower connector connecting ears, and the web plate is connected to the lower connector connecting ears on the adapter 3 through a second connecting assembly. The second connecting assembly includes: an adapter bolt 33, an adapter fixing nut 31, a washer 24, and a spherical bearing 32. The adapter bolt 33 passes through the two lower connector connecting lugs and the adapter connecting hole. A washer 24 is provided between the head of the adapter bolt 33 and the contact surface of the lower connector connecting lugs. An adapter fixing nut 31 is connected to one side of the adapter bolt 33. A washer 24 is provided between the adapter fixing nut 31 and the lower connector connecting lugs. A spherical bearing 32 is provided between the adapter bolt 33 and the adapter connecting hole. The outer sleeve of the spherical bearing 32 is fixedly connected to the inner wall of the adapter connecting hole, and the inner wall of the spherical bearing 32 is connected to the adapter bolt 33.

[0022] The connection method between the adapter 3 and the upper connector 2 allows the upper connector 2 to generate a certain displacement along the axial direction of the upper connector bolt 22, so as to absorb and compensate for the structural deformation of the fuselage in this direction. The connection between the adapter 3 and the lower adapter 1 allows the upper adapter 2 and the adapter 3 to have a certain displacement in the axial direction of the adapter bolt 33, so as to absorb and compensate the structural deformation of the fuselage in this direction. This two-way degree of freedom release function is mainly used to release the deformation of the fuselage and prevent damage to the fuselage structure.

[0023] It is understood that the above-mentioned embodiments mentioned in this utility model can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this utility model will not elaborate further.

[0024] Those skilled in the art will understand that, in the above-described method of the specific implementation, the order in which each step is written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0025] This utility model provides an antenna mounting bracket connector that can release fuselage deformation in two directions. Through the vertically arranged upper connector connection hole and lower connector connection lug on the adapter 3, a movable structure is created. The connection between the upper connector connection hole and the upper connector 2 allows the upper connector 2 to move in the direction of the upper connector connection hole axis. The connection between the lower connector connection lug and the lower connector 1 allows the adapter 3 to drive the upper connector 2 to move in the direction perpendicular to the upper connector connection hole axis. This allows the adapter 3 to act as a flexible link to absorb and release the stress generated by the deformation when the aircraft fuselage undergoes bending or torsional deformation due to changes in air pressure and load during flight. This avoids the risk of fatigue damage at the antenna-fuselage connection point, effectively adapting to fuselage deformation, releasing structural stress, and thus preventing fatigue damage at the antenna-fuselage connection point, ensuring flight safety.

[0026] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions, characterized in that, include: Lower connector (1), upper connector (2) and adapter (3); The lower connector (1) is located at the lower end of the upper connector (2), and the lower connector (1) and the upper connector (2) are connected by an adapter (3); The lower connector (1) is provided with a plurality of lower connector mounting holes (11). The upper connector (2) is provided with several equipment tray mounting holes (21). The adapter (3) is provided with a plurality of upper connector connection holes and two lower connector connection lugs, and the plurality of upper connector connection holes are arranged in parallel. The upper connector connection hole is perpendicular to the lower connector connection lug. The upper connector (2) has a rectangular through hole in the center, the adapter (3) is embedded in the upper connector (2), and the outer walls on both sides of the upper connector (2) are symmetrically provided with weight reduction grooves (25).

2. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 1, characterized in that, The upper connector (2) is provided with two symmetrically arranged adapter connecting webs, and the adapter connecting webs are provided with a plurality of adapter mounting holes, which are arranged in parallel.

3. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 2, characterized in that, The number of mounting holes of the adapter matches the number of connecting holes of the upper connector, and a first connecting component is provided between the mounting holes of the adapter and the connecting holes of the upper connector.

4. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 3, characterized in that, The first connecting assembly includes: an upper connector bolt (22), an upper connector fixing nut (23), and a washer (24); The upper connector bolt (22) passes through the adapter mounting hole and the upper connector connection hole provided on the two adapter connection web plates. A washer (24) is provided between the head of the upper connector bolt (22) and the adapter connection web plate. An upper connector fixing nut (23) is connected to one side of the upper connector bolt (22). A washer (24) is provided between the upper connector fixing nut (23) and the adapter connection web plate.

5. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 4, characterized in that, The two lower connector connecting lugs are arranged opposite each other. The lower connector (1) has an outer edge web plate at its center, and the web plate has an adapter connection hole.

6. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 5, characterized in that, The web plate is embedded between two lower connector connecting lugs, and the lower connector connecting lugs are provided with through holes. A second connecting component is provided between the adapter connecting hole and the two lower connector connecting lugs.

7. The antenna mounting bracket connection joint capable of releasing fuselage deformation in two directions according to claim 6, characterized in that, The second connection assembly includes: an adapter bolt (33), an adapter retaining nut (31), a washer (24), and a spherical bearing (32); The adapter bolt (33) is set through the two lower connector connecting lugs and the adapter connecting hole. A washer (24) is provided between the head of the adapter bolt (33) and the lower connector connecting lug. An adapter fixing nut (31) is connected to one side of the adapter bolt (33). A washer (24) is provided between the adapter fixing nut (31) and the lower connector connecting lug. The outer wall of the adapter bolt (33) is fitted with a spherical bearing (32), which is located in the adapter connection hole.

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