A mating flange

Abstract

This utility model relates to the field of aviation connection structure technology, specifically to a docking flange; it includes a main connecting ring, an auxiliary connecting ring, a reinforcing rib, and a positioning mechanism. The positioning mechanism includes a positioning pin, a positioning block, a limit seat, and a tensioning bolt. This utility model provides a load-bearing docking flange structure for adding an optoelectronic turret to the front of the airtight end frame of an aircraft nose. Through the structure of the main connecting ring, auxiliary connecting ring, reinforcing rib, and positioning mechanism, the main connecting ring docks with the docking ring of the equipment, and the reinforcing rib provides support. At the same time, it transfers the load of the main connecting ring to the auxiliary connecting ring of the docking flange. The auxiliary connecting ring transfers the load from the main connecting ring to the airframe structure, while satisfying the connection between the docking flange and the front airtight end frame of the aircraft nose. This enables the convenient installation of long-cantilever, heavy-duty, ring-shaped interface equipment on the aircraft nose.

Description

Technical Field

[0001] This utility model relates to the field of aviation connection structure technology, and in particular to a docking flange. Background Technology

[0002] In the prior art, in order to meet the requirements of equipment installation on the nose of the aircraft, an equipment mounting bracket structure is set on the airtight end frame of the nose of the aircraft. The mounting bracket structure serves as a transition mechanism for connecting the equipment installation with the airtight end frame, and is usually composed of longitudinal and transverse reinforcing members.

[0003] However, for some long cantilever, heavy load-bearing photovoltaic turret structures with ring-shaped connection surfaces, traditional mounting brackets are mostly unable to meet the installation requirements. Utility Model Content

[0004] The purpose of this invention is to provide a docking flange that enables easy installation of equipment with long cantilever, heavy weight, and ring-shaped interface on the nose of an aircraft.

[0005] To achieve the above objectives, this utility model provides a mating flange, including a main connecting ring and an auxiliary connecting ring, wherein the main connecting ring and the auxiliary connecting ring are connected by multiple reinforcing ribs;

[0006] It also includes positioning mechanisms;

[0007] The positioning mechanism includes a positioning pin, a positioning block, a limiting seat, and a tensioning bolt. The positioning pin is slidably connected to the main connecting ring, and the positioning block is arranged in a cross shape. The positioning block engages with a rectangular groove in a stepped cavity on the main connecting ring. The limiting seat is detachably connected to the main connecting ring and is located on the side of the main connecting ring away from the positioning pin. The tensioning bolt is threadedly connected to the positioning pin and abuts against the limiting seat.

[0008] The reinforcing rib and the main connecting ring are provided with a first reinforcing boss. The first reinforcing boss is welded and fixed to the main connecting ring and the reinforcing rib respectively, and is symmetrically arranged on both sides of the reinforcing rib.

[0009] The reinforcing rib and the auxiliary connecting ring are provided with a second reinforcing boss. The second reinforcing boss is welded and fixed to the auxiliary connecting ring and the reinforcing rib respectively, and is symmetrically arranged on both sides of the reinforcing rib.

[0010] The tensioning bolt is also provided with an external hexagonal platform, which is located outside the internal hexagonal cavity of the tensioning bolt.

[0011] The mating flange further includes an anti-loosening mechanism, which includes a threaded ring and a threaded block. The threaded ring is integrally formed with the limiting seat and is located on the side of the limiting seat away from the locating pin. The threaded block is threadedly connected to the threaded ring, and its front end face abuts against the external hexagonal platform.

[0012] This utility model discloses a docking flange structure for installing a photoelectric turret in front of the airtight end frame of an aircraft nose. Through a structure consisting of a main connecting ring, an auxiliary connecting ring, reinforcing ribs, and a positioning mechanism, the main connecting ring docks with the docking ring of the equipment, while the reinforcing ribs provide support. Simultaneously, the load of the main connecting ring is transferred to the auxiliary connecting ring of the docking flange. The auxiliary connecting ring then transfers the load from the main connecting ring to the airframe structure, thus ensuring the connection between the docking flange and the airtight end frame of the aircraft nose. This allows for convenient installation of long-cantilevered, heavy-duty, ring-shaped interface equipment on the aircraft nose. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the docking flange according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the positioning pin in the first embodiment of this utility model.

[0016] Figure 3 This is a cross-sectional view of the threaded ring according to the second embodiment of this utility model.

[0017] In the diagram: 101-Main connecting ring, 102-Auxiliary connecting ring, 103-Reinforcing rib, 104-Positioning pin, 105-Positioning block, 106-Limit seat, 107-Tightening bolt, 108-First reinforcing boss, 109-Second reinforcing boss, 110-External hexagonal platform, 201-Threaded ring, 202-Threaded block. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Example 1:

[0020] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the mating flange. Figure 2This is a structural diagram of a positioning pin. This utility model provides a mating flange: including a main connecting ring 101, an auxiliary connecting ring 102, a reinforcing rib 103, and a positioning mechanism. The positioning mechanism includes a positioning pin 104, a positioning block 105, a limiting seat 106, and a tension bolt 107. The aforementioned solution enables convenient installation of equipment with long cantilever arms, heavy weight, and ring-shaped interfaces on the nose of an aircraft. It is understood that the aforementioned solution facilitates the installation of equipment with long cantilever arms, heavy weight, and ring-shaped interfaces.

[0021] In this embodiment, the main connecting ring 101 and the auxiliary connecting ring 102 are respectively provided with multiple mounting holes in a ring shape, which facilitates fixing by bolts. Furthermore, the dimensions of the corresponding components in this application can be customized according to actual needs to meet usage requirements.

[0022] The main connecting ring 101 and the auxiliary connecting ring 102 are connected by multiple reinforcing ribs 103; the two ends of the reinforcing ribs 103 are welded and fixed. The main connecting ring 101 is connected to the equipment, and the auxiliary connecting ring 102 is connected to the front airtight end frame of the aircraft nose.

[0023] The positioning pin 104 is slidably connected to the main connecting ring 101, and the positioning block 105 is arranged in a cross shape. The positioning block 105 cooperates with the rectangular groove in the stepped cavity on the main connecting ring 101. The limiting seat 106 is detachably connected to the main connecting ring 101 and is located on the side of the main connecting ring 101 away from the positioning pin 104. The tensioning bolt 107 is threadedly connected to the positioning pin 104 and abuts against the limiting seat 106. The main connecting ring 101 is provided with symmetrical stepped holes, and non-penetrating rectangular grooves are provided in the stepped holes. The rectangular grooves are arranged in a cross shape inside the large hole of the stepped hole to facilitate the setting of the positioning block 105. The positioning pin 104 is mainly used to solve the alignment of the interface for the installation of the photoelectric turret. The photoelectric turret is aligned with the positioning pin 104 on the main connecting ring 101 through the guide pin hole on the docking ring to ensure that the photoelectric turret can be installed in the correct position. The locating pin 104 has a threaded hole on its rear side to facilitate the installation of the T-shaped tension bolt 107. The limiting seat 106 has symmetrically arranged locating cylinders that directly engage with the locating holes on the main connecting ring 101. This prevents the limiting seat 106 from rotating after installation and also reduces the shear force on the fixing bolts of the limiting seat 106, preventing bolt breakage and improving the stability of the limiting seat 106 after installation. This, in turn, ensures the stable installation of the locating pin 104. Mounted on the main connecting ring 101, the limiting seat 106 is fixed by multiple countersunk bolts and has a stepped cavity. The inner hole of the stepped cavity is a through hole to facilitate the passage of the tension bolt 107. When the tension bolt 107 is installed, a washer can be placed between its head and the end face of the stepped cavity in the limiting seat 106. The main function of the washer is to protect the mating surface of the limiting seat 106 during the tightening process of the nut, and at the same time increase the force-bearing area between the nut and the mating surface of the limiting seat 106 to reduce compressive stress.

[0024] Secondly, the reinforcing rib 103 and the main connecting ring 101 are provided with first reinforcing bosses 108. The first reinforcing bosses 108 are welded and fixed to the main connecting ring 101 and the reinforcing rib 103 respectively, and are symmetrically arranged on both sides of the reinforcing rib 103. The first reinforcing bosses 108 are used to enhance the stability of the connection end between the reinforcing rib 103 and the main connecting ring 101, thereby improving the overall stability of the mating flange structure.

[0025] Then, a second reinforcing boss 109 is provided on the reinforcing rib 103 and the auxiliary connecting ring 102. The second reinforcing boss 109 is welded and fixed to the auxiliary connecting ring 102 and the reinforcing rib 103 respectively, and is symmetrically arranged on both sides of the reinforcing rib 103. The second reinforcing boss 109 is used to enhance the stability of the connection end between the reinforcing rib 103 and the auxiliary connecting ring 102, thereby also helping to improve the overall stability of the butt flange structure. The first reinforcing boss 108 and the second reinforcing boss 109 are both triangular structures.

[0026] Finally, the tensioning bolt 107 is also provided with an external hexagonal platform 110, which is located outside the internal hexagonal cavity of the tensioning bolt 107. The external hexagonal platform 110 allows the tensioning bolt 107 to be installed or removed by rotating it with an internal hexagonal wrench or a socket wrench.

[0027] When using this utility model to facilitate the installation of equipment with long cantilever, heavy weight, and ring-shaped interface, this utility model provides a load-bearing docking flange structure for adding an optoelectronic turret to the front of the airtight end frame of an aircraft nose. Through the structure of the main connecting ring 101, the auxiliary connecting ring 102, the reinforcing rib 103, and the positioning mechanism, the main connecting ring 101 docks with the docking ring of the equipment. During docking, the optoelectronic turret aligns with the positioning pin 104 on the main connecting ring 101 through the guide pin hole on the docking ring, ensuring that the optoelectronic turret can be installed in the correct position. The reinforcing rib 103 provides support and simultaneously transfers the load of the main connecting ring 101 to the auxiliary connecting ring 102 of the docking flange. The auxiliary connecting ring 102 transfers the load from the main connecting ring 101 to the airframe structure, while simultaneously satisfying the connection between the docking flange and the airtight end frame of the aircraft nose. This achieves the effect of convenient installation of equipment with long cantilever, heavy weight, and ring-shaped interface on the aircraft nose.

[0028] Example 2:

[0029] like Figure 3 As shown, where Figure 3 This is a cross-sectional view of the threaded ring. Based on the first embodiment, this utility model provides a mating flange, which further includes an anti-loosening mechanism, including a threaded ring 201 and a threaded block 202.

[0030] The threaded ring 201 is integrally formed with the limiting seat 106 and is located on the side of the limiting seat 106 away from the positioning pin 104. The threaded block 202 is threadedly connected to the threaded ring 201, and its front end face abuts against the external hexagonal platform 110. The threaded ring 201 has a threaded cavity inside to facilitate the installation of the threaded block 202, and the tail end face of the threaded block 202 has an external hexagonal structure for easy rotation.

[0031] In this embodiment, by setting the structure of the threaded ring 201 and the threaded block 202, after the tension bolt 107 is fixed, a limiting structure can be added to limit the tension bolt 107 and improve its stability.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A mating flange, comprising a main connecting ring and an auxiliary connecting ring, characterized in that, The main connecting ring and the auxiliary connecting ring are connected by multiple reinforcing ribs; It also includes positioning mechanisms; The positioning mechanism includes a positioning pin, a positioning block, a limiting seat, and a tensioning bolt. The positioning pin is slidably connected to the main connecting ring, and the positioning block is arranged in a cross shape. The positioning block engages with a rectangular groove in a stepped cavity on the main connecting ring. The limiting seat is detachably connected to the main connecting ring and is located on the side of the main connecting ring away from the positioning pin. The tensioning bolt is threadedly connected to the positioning pin and abuts against the limiting seat.

2. The mating flange as described in claim 1, characterized in that, The reinforcing rib and the main connecting ring are provided with a first reinforcing boss. The first reinforcing boss is welded and fixed to the main connecting ring and the reinforcing rib respectively, and is symmetrically arranged on both sides of the reinforcing rib.

3. The mating flange as described in claim 1, characterized in that, The reinforcing rib and the auxiliary connecting ring are provided with a second reinforcing boss. The second reinforcing boss is welded and fixed to the auxiliary connecting ring and the reinforcing rib respectively, and is symmetrically arranged on both sides of the reinforcing rib.

4. The mating flange as described in claim 1, characterized in that, The tensioning bolt is also provided with an external hexagonal platform, which is located outside the internal hexagonal cavity of the tensioning bolt.

5. The mating flange as described in claim 4, characterized in that, The mating flange also includes an anti-loosening mechanism, which includes a threaded ring and a threaded block. The threaded ring is integrally formed with the limiting seat and is located on the side of the limiting seat away from the locating pin. The threaded block is threadedly connected to the threaded ring, and its front end face abuts against the external hexagonal platform.

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