Aircraft floor beam with fixed-point mooring interface and variable-point mooring interface
By designing aircraft floor beams that combine fixed-point tethering and variable-point tethering interfaces, the problem that tethering methods in the prior art cannot adapt to complex or random cargo loading is solved, and more flexible and efficient cargo tethering and cargo space utilization is achieved.
Patent Information
- Application Number
- CN202422366933.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The tethering method of existing aircraft cargo hold floors is mainly fixed-point tethering, which cannot adapt to complex or random cargo loading, resulting in limited connection points of tethering ropes, affecting the tethering of cargo and the utilization of cargo hold space.
An aircraft floor beam with fixed-point tethering and variable-point tethering interface was designed. Through the combination of fixed-point tethering ring interface and tethering rail interface, flexible tethering of cargo is achieved. The fixed point tethering ring interface achieves fixed point tethering through bushing and threaded connections, while the tethering slide interface achieves variable point tethering through multiple mounting hole interfaces.
This design realizes the flexibility of the aircraft cargo tethering scheme, adapts to complex or random cargo loading, and improves the cargo tethering effect and the rational use of cargo hold space.
Smart Images
Figure CN222988358U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of aircraft structural design, and particularly relates to an aircraft floor beam with both fixed-point mooring and variable-point mooring interfaces. Background Art
[0002] During the process of transporting goods in the aircraft cargo hold, it is necessary to moor and limit the goods. Therefore, mooring interfaces need to be set on the cargo hold floor and used in conjunction with mooring equipment such as mooring ropes, i.e., mooring chains and mooring straps.
[0003] The mooring of the existing aircraft cargo hold floor is generally divided into two types: fixed mooring and detachable mooring. The connection method of the fixed mooring interface is as follows: directly machine a fixed mooring socket on the aircraft floor longitudinal beam, and fix the mooring ring or mooring post of the aircraft to the mooring socket through bolts. When in use, turn up the mooring ring or post, connect the mooring rope to the card slot of the ring or post, etc. When not in use, turn the mooring ring or mooring post flat and sink it into the mooring socket. The connection method of the detachable mooring interface is as follows: set a mooring interface with internal threads on the aircraft floor beam. When in use, screw the threaded post of the detachable mooring ring into the mooring interface, and connect the mooring rope to the detachable mooring ring. When not in use, remove the mooring ring and block the mooring interface with internal threads with a threaded plug.
[0004] The above two mooring methods are both fixed-point mooring, and the mooring points are generally set at the intersection of a single floor longitudinal beam and the floor cross beam. At the beginning of aircraft design, according to the mooring scheme of typical loading, the positions of fixed-point mooring are planned into the floor design. However, during the service of the aircraft, the loaded goods are often more complex or random. When transporting goods beyond the typical loading scheme, the connection points of the mooring ropes are often limited, which brings difficulties to mooring the goods during air transportation. Utility Model Content
[0005] In order to solve the above problems, this application provides an aircraft floor beam with both fixed-point mooring and variable-point mooring interfaces, mainly including:
[0006] A fixed-point mooring ring interface, having a first receiving groove for receiving and installing a bushing, and the bushing has internal threads for installing a first mooring ring or a threaded plug.
[0007] A mooring slide rail interface, having a second receiving groove, and the second receiving groove is a strip-shaped groove for receiving and installing a strip-shaped mooring slide rail. The mooring slide rail is formed with a plurality of mounting hole interfaces along the extending direction of the strip-shaped groove opening for installing a second mooring ring.
[0008] Preferably, the floor beam is integrally machined from 7050 aluminum alloy.
[0009] Preferably, the bottom of the first receiving groove of the fixed-point mooring ring interface has a plurality of first threaded through holes, and the bushing has a plurality of second threaded through holes. When the bushing is located in the first receiving groove, the first threaded through holes are aligned with the second threaded through holes, and the first threaded through holes are aligned with the threaded holes of the floor cross beam located below the floor beam. After the bolts pass through the second threaded through holes and the first threaded through holes, they are threadedly connected to the threaded holes of the floor cross beam.
[0010] Preferably, the first receiving groove and the bushing are of square structure, and the number of the first threaded through holes and the second threaded through holes is four, which are arranged at the four corners of the square structure.
[0011] Preferably, the mooring slide rail interface is located between two fixed-point mooring ring interfaces.
[0012] Preferably, the mooring slide rail has a rail surface, and a rail groove is formed on the rail surface, and the mounting hole interfaces are uniformly distributed along the groove direction of the rail groove.
[0013] Preferably, the rail surface is supported by a support web, and the bottom end of the support web has a support flange, and the support flange is connected to the floor beam web at the bottom of the mooring slide rail interface by bolts.
[0014] Preferably, the mooring slide rail is machined from aluminum alloy or titanium alloy.
[0015] The structure of the present application is simple, easy to install, has good versatility and adaptability, is beneficial to the placement and mooring of goods and the rational utilization of the cargo hold space, and makes the mooring scheme more flexible when the aircraft transports goods. Description of the Drawings
[0016] Figure 1 It is a schematic diagram of the floor beam structure of a preferred embodiment of the aircraft floor beam of the present application with both fixed-point mooring and variable-point mooring interfaces.
[0017] Figure 2 It is the present application Figure 1 Schematic diagram of the mooring ring structure for installing the floor beam of the illustrated embodiment.
[0018] Figure 3 It is the present application Figure 1 Schematic diagram of the bushing structure of the illustrated embodiment.
[0019] Figure 4 It is the present application Figure 1 Top view of the mooring slide rail of the illustrated embodiment.
[0020] Figure 5 It is the present application Figure 4 Schematic diagram of the A-A cross-sectional structure of the illustrated embodiment.
[0021] Figure 6 This is Figure 4 a schematic diagram of the mooring slide rail support of the embodiment shown in this application.
[0022] Among them, 1 - floor beam, 11 - fixed point mooring ring interface, 12 - mooring slide rail interface, 2 - mooring slide rail, 21 - mounting hole interface, 22 - track surface, 23 - support web, 24 - track groove, 25 - support flange, 3 - bushing, 4 - first mooring ring, 5 - second mooring ring, 6 - floor cross beam. Specific embodiments
[0023] To make the purpose, technical solutions, and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings in the embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The described embodiments are part of the embodiments of this application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the drawings.
[0024] This application provides an aircraft floor beam with both fixed-point mooring and variable-point mooring interfaces, as Figure 1 - Figure 2 shown, mainly including:
[0025] The fixed-point mooring ring interface 11 has a first receiving groove for receiving and installing the bushing 3. The bushing 3 has an internal thread for installing the first mooring ring 4 or a threaded plug.
[0026] The mooring slide rail interface 12 has a second receiving groove, and the second receiving groove is a strip-shaped groove for receiving and installing the strip-shaped mooring slide rail 2. The mooring slide rail 2 is formed with a plurality of mounting hole interfaces 21 along the extending direction of the notch of the strip-shaped groove for installing the second mooring ring 5.
[0027] This application fixes the goods through the fixed-point mooring ring interface 11 and the mooring rail interface 12. Among them, the fixed-point mooring ring interface 11 is connected to the bushing 3. The bushing 3 is made of steel. According to whether it is used for mooring goods, when in use, the threaded post of the detachable mooring ring is screwed into the internal thread of the bushing 3. The mooring rope is connected to the detachable mooring ring, and the mooring load of the goods will be transmitted to the floor beam and the lower frame of the floor through the mooring ring. When not in use, remove the mooring ring and block the inner hole of the bushing 3 with a threaded plug to prevent foreign objects from entering. The mooring rail interface 12 is connected to the mooring rail 2. The mooring rail 2 has strong versatility and flexibility. Each mooring rail has multiple mounting hole interfaces 21, which can be flexibly used according to the position requirements of the mooring points to achieve variable-point mooring within the range of the mooring rail. In addition, in addition to being used as an installation interface for detachable mooring rings, the mooring rail 2 can also be used as an installation interface for seats, pallets, and various product equipment and brackets such as stretcher stations and medical workbenches.
[0028] In some alternative embodiments, the floor beam 1 is integrally machined from 7050 aluminum alloy.
[0029] In some alternative embodiments, the bottom of the first receiving groove of the fixed-point mooring ring interface 11 has a plurality of first threaded through holes, and the bushing 3 has a plurality of second threaded through holes. When the bushing 3 is located in the first receiving groove, the first threaded through holes are aligned with the second threaded through holes, and the first threaded through holes are aligned with the threaded holes of the floor cross beam 6 located below the floor beam 1. After the bolt passes through the second threaded through hole and the first threaded through hole, it is threadedly connected to the threaded hole of the floor cross beam.
[0030] In some alternative embodiments, as Figure 3 shown, the first receiving groove and the bushing 3 are square structures, and the number of the first threaded through holes and the second threaded through holes is four, which are arranged at the four corners of the square structure.
[0031] In this embodiment, the fixed-point mooring ring interface 11 is arranged directly above the lower floor frame, that is, the floor cross beam 6, and is fixedly connected to the flange strip of the lower floor frame by passing four large bolts through the flange connection holes of the bushing 3 and the connection holes of the floor fixed-point mooring ring interface, so as to be able to transmit the load to the floor cross beam 6.
[0032] In some alternative embodiments, the mooring rail interface 12 is located between the two fixed-point mooring ring interfaces 11. In this embodiment, the mooring rail interface 12 and the fixed-point mooring ring interface 11 are arranged at intervals. As described above, the floor beam 6 corresponds to the lower part of the fixed-point mooring ring interface 11, so it can be known that the mooring rail interface 12 is arranged between the two floor beams 6. In this embodiment, the floor beam comprehensively arranges the fixed-point mooring and the mooring rail on the same track, which can greatly increase the number of mooring points on the floor of the aircraft cargo hold, facilitate the connection of mooring ropes, and is conducive to the rational use of the cargo hold space.
[0033] In some alternative embodiments, as Figure 4 and Figure 5 shown, the mooring rail 2 has a rail surface 22, and a rail groove 24 is formed on the rail surface. The mounting hole interfaces 21 are uniformly distributed along the groove direction of the rail groove 24. In this embodiment, the multiple mounting hole interfaces 21 ensure the versatility and flexibility of the mooring rail. This arrangement can take into account the needs of mounting interfaces such as seats, pallets, and stretcher stations, and has strong adaptability.
[0034] In some alternative embodiments, the rail surface 22 is supported by a support web 23. The bottom end of the support web 23 has a support flange 25, and the support flange 25 is bolted to the floor beam web at the bottom of the mooring rail interface 12.
[0035] As Figure 6 shown, the rail surface 22, as the main structure of the mooring rail 2, can be integrally designed with the underlying support structure or fixed to the underlying support structure. When connected by a fixing method, in addition to the support web 23 and the support flange 25, the underlying support structure also has a connecting plate or an upper flange structure above the support web 23. The connecting plate or the upper flange structure is bolted to the bottom plate of the rail surface 22, and the support flange 25 is screwed to the floor beam web, so as to transfer the equipment load connected to the mooring rail to the floor beam.
[0036] In some alternative embodiments, the mooring rail 2 is machined from aluminum alloy or titanium alloy. In this embodiment, it is preferred that the mooring rail with a high usage frequency is made of titanium alloy. Titanium alloy has strong load-bearing capacity and good wear resistance.
[0037] As described above, the above are only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces, characterized in that: include: The fixed point mooring ring interface (11) has a first receiving groove for receiving and installing a bushing (3), and the bushing (3) has an internal thread for installing a first mooring ring (4) or a threaded plug cap; The mooring rail interface (12) has a second accommodating groove, which is a strip-shaped groove for accommodating and installing a strip-shaped mooring rail (2). The mooring rail (2) is formed with a plurality of mounting hole interfaces (21) along the extending direction of the strip-shaped groove opening for installing a second mooring ring (5).
2. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The floor beam (1) is integrally machined from 7050 aluminum alloy.
3. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The bottom of the first receiving groove of the fixed point mooring ring interface (11) has a plurality of first threaded through holes, and the bushing (3) has a plurality of second threaded through holes. When the bushing (3) is located in the first receiving groove, the first threaded through hole is aligned with the second threaded through hole, and the first threaded through hole is aligned with the threaded hole of the floor beam (6) located below the floor beam (1). After the bolt passes through the second threaded through hole and the first threaded through hole, it is threadedly connected to the threaded hole of the floor beam.
4. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 3, characterized in that: The first accommodating groove and the bushing (3) are square structures, and the number of the first threaded through holes and the second threaded through holes are both four, arranged at the four corners of the square structure.
5. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The mooring slide rail interface (12) is located between the two fixed point mooring ring interfaces (11).
6. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The mooring slide rail (2) has a track surface (22) on which a track groove (24) is formed, and the mounting hole interfaces (21) are evenly distributed along the track groove (24).
7. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The track surface (22) is supported by a supporting web (23), the bottom end of the supporting web (23) is provided with a supporting edge strip (25), and the supporting edge strip (25) is connected to the floor beam web at the bottom of the mooring slide rail interface (12) by bolts.
8. The aircraft floor beam having both fixed-point mooring and variable-point mooring interfaces as claimed in claim 1, characterized in that: The mooring slide rail (2) is formed by machining using an aluminum alloy or a titanium alloy.