Airplane trunk back hoisting mechanism

Abstract

The utility model provides an airplane trunk back hoisting mechanism which is characterized in that a base assembly is fixed on a trunk body through a screw and an insert, the upper end of a hoisting assembly is embedded in a C-shaped groove of an airplane framework, and the hoisting assembly is clamped and mounted in the base assembly; the base assembly is internally provided with a cushioning assembly for buffering vibration in the vertical direction of the trunk body; a vertical rack meshing assembly is arranged between the hoisting assembly and the base assembly and used for buffering vibration of the box body of the plum box in the horizontal direction. According to the mechanism, a cooperative work system is formed by the base assembly and the hoisting assembly, the base assembly is of a multi-layer composite damping structure, the hoisting assembly is provided with the self-locking type fixing device, and the base assembly and the hoisting assembly form a multi-dimensional stable system through a meshing linkage mechanism. Through mechanical optimization and modular design, organic unification of damping and buffering, multi-dimensional positioning and long-acting stability is achieved in a limited space.

Description

Technical Field

[0001] This utility model relates to the field of aircraft equipment technology, and in particular to a lifting mechanism for the back of an aircraft luggage compartment. Background Technology

[0002] Aircraft baggage compartments are facilities designed for passengers to store their carry-on luggage, typically located within the aircraft cabin. These compartments have a large load capacity and must withstand flight loads, vibrations during operation, ground loads, and loads associated with emergency landings. Therefore, the baggage compartments need to be securely connected to the aircraft structure. Furthermore, safety requirements on civil aircraft are higher than for ordinary equipment, necessitating more safety redundancy in the design of the baggage compartment's installation.

[0003] To address these issues, a rear-mounted mechanism for aircraft luggage is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rear-mounting mechanism for aircraft luggage, solving the technical problem of securely locking the luggage.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An aircraft overhead luggage rack mounting mechanism, including

[0009] The base assembly and the lifting assembly are fixed to the luggage compartment body by screws and inserts. The upper end of the lifting assembly is embedded in the C-shaped groove of the aircraft frame to achieve a stable and secure installation of the luggage rack on the aircraft frame. The lifting assembly is snapped into the base assembly. The base assembly is equipped with a shock-absorbing component to buffer the vertical vibration of the luggage compartment body.

[0010] A vertical rack and pinion assembly is provided between the hoisting assembly and the base assembly to buffer the horizontal vibration of the suitcase body.

[0011] The base assembly consists of a shock-absorbing mechanism bracket, a metal inner ring, shock-absorbing rubber, and a shock-absorbing mechanism base plate.

[0012] The shock-absorbing mechanism bracket has a shock-absorbing rubber in the middle. The inner side of the shock-absorbing rubber has a concave shape that matches the outer protrusion of the metal inner ring. The two parts are assembled and then placed inside the shock-absorbing mechanism bracket. The shock-absorbing mechanism base plate is then assembled from the bottom side of the shock-absorbing mechanism bracket. The shock-absorbing rubber is a high-strength rubber that fixes the metal inner ring and the shock-absorbing rubber in the middle. It can absorb shock when subjected to vertical impact, avoiding collisions and abnormal noises. The entire base assembly is fixed to the luggage box body with screws and inserts.

[0013] Preferably, the metal inner ring and the shock-absorbing rubber adopt a concave-convex interlocking structure design, which realizes vertical impact buffering through the deformation characteristics of elastic rubber. During assembly, the pre-assembled metal inner ring and shock-absorbing rubber module are placed into the bracket cavity, and the bottom is fixed in a closed manner through the assembly base plate to form a sandwich structure shock-absorbing unit. This component is connected to the luggage box body through a double mechanical fixing method to ensure installation stability.

[0014] Preferably, the hoisting assembly consists of shock absorber pins, shock absorber toothed plates, hex socket screws, fixing nuts, pins, and end caps.

[0015] Preferably, after the shock absorber pin passes through the shock absorber toothed plate, the top of the shock absorber pin is flush with the shock absorber toothed plate. The upper end of the shock absorber pin and the shock absorber toothed plate are embedded in the C-shaped groove of the aircraft frame. The internal hexagon screw passes through the mounting holes on both sides of the shock absorber toothed plate and is then fixed to the C-shaped groove by the internal hexagon screw.

[0016] Preferably, the shock absorber pin passes through the entire base assembly and is fixed by a washer and a nut. A pin hole is provided at the bottom of the shock absorber pin, and then a pin is inserted into the pin hole to prevent the nut from rotating and falling off, thus achieving a self-locking function. Finally, the end cover is installed on the base plate of the shock absorber mechanism to avoid exposing the internal parts.

[0017] Preferably, the metal inner ring has a toothed structure at its top and the shock absorber toothed plate has a toothed structure at its lower end, which meshes the metal inner ring with the shock absorber toothed plate, increases the friction in the yaw direction, and prevents the shock absorber mechanism from being damaged by too much lateral force. The shock absorber toothed plate structure facilitates the adjustment of the toothed plates on both sides in the yaw direction during installation. The tooth spacing between the toothed plates is 1mm, and the adjustment accuracy is high.

[0018] Preferably, the shock absorber pin passes through the base assembly and is fixed by a double-locking mechanism. The end of the shock absorber pin is equipped with an anti-reverse pin to achieve mechanical self-locking. The upper part of the toothed adjustment plate is connected to the C-groove of the aircraft frame through a multi-point positioning device, and the lower part adopts a detachable end cap to achieve protective encapsulation of the internal components. The specially designed bidirectional meshing mechanism precisely meshes the top teeth of the metal inner ring with the lower teeth of the adjustment plate to form a yaw friction enhancement system, which effectively resists lateral load impact.

[0019] (III) Beneficial Effects

[0020] 1. An innovative composite shock absorption system with shock absorption components effectively absorbs impact energy through the synergistic effect of elastic materials and mechanical structures, preventing the suitcase from colliding or making abnormal noises when it is subjected to vibration during flight;

[0021] 2. The bidirectional toothed meshing mechanism significantly improves the yaw friction coefficient, constructs an anti-displacement safety barrier, and avoids damage caused by excessive displacement of the base assembly and hoisting assembly in the yaw direction when subjected to impact. The modular adjustment tooth plate, combined with the precision tooth pitch design, enables high-precision fine-tuning of the installation position.

[0022] 4. The multi-safety locking system integrates mechanical self-locking and anti-loosening devices. The locking structure uses a fixed nut and a pin to achieve the self-locking function and prevent the base assembly and the hoisting assembly from separating.

[0023] The mechanism consists of a base assembly and a hoisting assembly forming a collaborative working system. The base assembly adopts a multi-layer composite shock-absorbing structure, and the hoisting assembly is equipped with a self-locking fixing device. The two form a multi-dimensional stability system through a meshing linkage mechanism. The structural design fully considers the special operating conditions of aircraft. Through mechanical optimization and modular design, it achieves the organic unity of shock absorption, multi-dimensional positioning and long-term stability in a limited space, providing an innovative solution for the installation of onboard equipment. Attached Figure Description

[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is an overall structural diagram of an aircraft luggage back-mounting mechanism according to the present invention;

[0026] Figure 2 This is an exploded view of the base assembly in the rear lifting mechanism of an aircraft luggage compartment according to this utility model;

[0027] Figure 3 This is an exploded view of the support base in the rear lifting mechanism of an aircraft luggage compartment according to this utility model.

[0028] Figure 4 This is an assembly cross-sectional view of the base assembly and support seat in the rear lifting mechanism of an aircraft luggage compartment according to the present invention.

[0029] Figure 5 This is an assembly drawing of a rear-mounted mechanism for an aircraft luggage compartment according to the present invention.

[0030] Legend:

[0031] 1. Base assembly; 11. Shock-absorbing mechanism bracket; 12. Metal inner ring; 13. Shock-absorbing rubber; 14. Shock-absorbing mechanism base;

[0032] 2. Support base; 21. Shock absorber pin; 22. Shock absorber toothed plate; 23. Socket head screw; 24. Fixing nut; 25. Pin; 26. End cap. Detailed Implementation

[0033] This application provides a rear-mounting mechanism for aircraft luggage, which solves the problem of stable and secure installation in the prior art. It consists of a base assembly and a mounting assembly that work together. The base assembly adopts a multi-layer composite shock-absorbing structure, and the mounting assembly is equipped with a self-locking fixing device. The two form a multi-dimensional stable system through a meshing linkage mechanism.

[0034] Example 1

[0035] This utility model patent designs a rear-mounting mechanism for aircraft luggage. It can effectively withstand radial and axial forces in the flight direction and securely hold the aircraft luggage. It is installed on the back of the luggage and fixed to the luggage body by insert screws, with the other end fixed to the aircraft fuselage structure.

[0036] The technical solution in this application embodiment is to solve the above-mentioned problem of stable and secure installation. The overall idea is as follows:

[0037] comprehensive Figure 1-3 As shown, in view of the problems existing in the prior art, this utility model provides an aircraft luggage back lifting mechanism, including...

[0038] The base assembly 1 and the mounting assembly 2 are used. The base assembly 1 is fixed to the luggage compartment body with screws and inserts. The upper end of the mounting assembly 2 is embedded in the C-shaped groove of the aircraft frame, thus achieving a stable and secure installation of the luggage rack onto the aircraft frame (e.g., Figure 5 As shown), the hoisting component 2 is snapped into the base component 1. The base component 1 is equipped with a shock-absorbing component to buffer the vertical vibration of the suitcase body.

[0039] A vertical rack and pinion assembly is provided between the hoisting assembly 2 and the base assembly 1 to buffer the horizontal vibration of the suitcase body.

[0040] The base assembly 1 consists of a shock-absorbing mechanism bracket 11, a metal inner ring 12, shock-absorbing rubber 13, and a shock-absorbing mechanism base plate 14.

[0041] A damping rubber 13 is provided in the center of the damping mechanism bracket 11. The damping rubber 13 has a concave inner side that matches the convex outer side of the metal inner ring 12. The two parts are assembled and then placed inside the damping mechanism bracket 11. The damping mechanism base plate 14 is then assembled from the underside of the damping mechanism bracket 11. The damping rubber 13 is a high-strength rubber (deforms 1mm per 800N). The metal inner ring 12 and the damping rubber 13 are fixed in the middle (e.g., Figure 4 As shown), it can absorb shock when subjected to vertical impact to avoid collisions and abnormal noises. The entire base assembly 1 is fixed to the suitcase body by screws and inserts.

[0042] The metal inner ring 12 and the shock-absorbing rubber 13 adopt a concave-convex interlocking structure design. The vertical impact buffer is achieved through the deformation characteristics of the elastic rubber. During assembly, the pre-assembled metal inner ring 12 and shock-absorbing rubber 13 modules are placed into the bracket cavity, and the bottom is fixed in a closed manner through the assembly base plate to form a sandwich structure shock-absorbing unit. This component is connected to the luggage box body through a double mechanical fixing method to ensure installation stability.

[0043] The hoisting assembly 2 consists of a shock absorber pin 21, a shock absorber toothed plate 22, an internal hexagon screw 23, a fixing nut 24, a pin 25, and an end cap 26. The shock absorber pin 21 passes through the shock absorber toothed plate 22, and its top is flush with the plate. The upper ends of the shock absorber pin 21 and the shock absorber toothed plate 22 are embedded in the C-grooves of the aircraft frame. The internal hexagon screw 23 passes through the mounting holes on both sides of the shock absorber toothed plate 22 and is then fixed to the C-grooves (to prevent lateral movement).

[0044] The shock absorber pin 21 passes through the entire base assembly 1 and is fixed by a washer and a nut. A pin hole is provided at the bottom of the shock absorber pin 21, and then a pin 25 is inserted into the pin hole to prevent the nut from rotating and falling off, thus achieving a self-locking function. Finally, the end cover 26 is installed on the base plate 1 of the shock absorber mechanism to avoid exposing the internal parts.

[0045] The metal inner ring 12 has a toothed structure at its top end, and the shock absorber toothed plate 22 has a toothed structure at its lower end. The metal inner ring 12 and the shock absorber toothed plate 22 mesh together, increasing the friction in the yaw direction and preventing the shock absorber mechanism from being damaged by excessive lateral force. The structure of the shock absorber toothed plate 22 facilitates the adjustment of the toothed plates on both sides in the yaw direction during installation. The tooth spacing between the toothed plates is 1mm, providing high adjustment accuracy.

[0046] The shock absorber pin 21 passes through the base assembly 1 and is fixed by a double-locking mechanism. The end of the shock absorber pin 21 is equipped with an anti-reverse pin to achieve mechanical self-locking. The upper part of the toothed adjustment plate is connected to the C-groove of the aircraft frame through a multi-point positioning device, and the lower part adopts a detachable end cover to achieve protective encapsulation of the internal components. The specially designed bidirectional meshing mechanism precisely meshes the top teeth of the metal inner ring with the lower teeth groove of the adjustment plate to form a yaw friction enhancement system, which effectively resists lateral load impact.

[0047] The present invention provides a rear-mounting mechanism for aircraft luggage, which has the following advantages:

[0048] 1. An innovative composite shock absorption system with shock absorption components effectively absorbs impact energy through the synergistic effect of elastic materials and mechanical structures, preventing the suitcase from colliding or making abnormal noises when it is subjected to vibration during flight;

[0049] 2. The bidirectional toothed meshing mechanism significantly improves the yaw friction coefficient, constructs an anti-displacement safety barrier, and avoids damage caused by excessive displacement of the base assembly and hoisting assembly in the yaw direction when subjected to impact. The modular adjustment tooth plate, combined with the precision tooth pitch design, enables high-precision fine-tuning of the installation position.

[0050] 4. The multi-safety locking system integrates mechanical self-locking and anti-loosening devices. The locking structure uses a fixed nut and a pin to achieve the self-locking function and prevent the base assembly and the hoisting assembly from separating.

[0051] The mechanism consists of a base assembly and a hoisting assembly forming a collaborative working system. The base assembly adopts a multi-layer composite shock-absorbing structure, and the hoisting assembly is equipped with a self-locking fixing device. The two form a multi-dimensional stability system through a meshing linkage mechanism. The structural design fully considers the special operating conditions of aircraft. Through mechanical optimization and modular design, it achieves the organic unity of shock absorption, multi-dimensional positioning and long-term stability in a limited space, providing an innovative solution for the installation of onboard equipment.

[0052] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A rear-mounted mechanism for aircraft overhead luggage compartments, comprising: The base assembly (1) is fixed to the luggage compartment body by screws and inserts, and the upper end of the lifting assembly (2) is embedded in the C-groove of the aircraft frame. The characteristic feature is that... The hoisting component (2) is snapped into the base component (1). The base component (1) is equipped with a shock-absorbing component to buffer the vertical vibration of the suitcase body. A vertical rack and pinion assembly is provided between the hoisting assembly (2) and the base assembly (1) to buffer the horizontal vibration of the suitcase body.

2. The aircraft luggage back-mounting mechanism according to claim 1, characterized in that, The base assembly (1) consists of a shock-absorbing component, a shock-absorbing mechanism bracket (11), and a shock-absorbing mechanism base plate (14). The shock-absorbing component includes a metal inner ring (12) and shock-absorbing rubber (13).

3. The aircraft luggage back-mounting mechanism according to claim 2, characterized in that, A shock-absorbing rubber (13) is provided in the middle of the shock-absorbing mechanism bracket (11). The inner side of the shock-absorbing rubber (13) has a recess that matches the outer protrusion of the metal inner ring (12). The two parts are assembled and then placed inside the shock-absorbing mechanism bracket (11).

4. The aircraft luggage back-mounting mechanism according to claim 3, characterized in that, The base plate (14) of the shock-absorbing mechanism is then assembled from the underside of the support (11) of the shock-absorbing mechanism. The shock-absorbing rubber (13) is a high-strength rubber, and the metal inner ring (12) and the shock-absorbing rubber (13) are fixed in the middle.

5. The aircraft luggage back-mounting mechanism according to claim 1, characterized in that, The hoisting assembly (2) consists of a shock absorber pin (21), a shock absorber toothed plate (22), an internal hex screw (23), a fixing nut (24), a pin (25), and an end cap (26). After the shock absorber pin (21) passes through the shock absorber toothed plate (22), the top of the shock absorber pin (21) is flush with the shock absorber toothed plate (22).

6. The aircraft luggage back-mounting mechanism according to claim 5, characterized in that, The upper ends of the shock absorber pin (21) and the shock absorber toothed plate (22) are embedded in the C-shaped groove of the aircraft frame. The internal hex screw (23) passes through the mounting holes on both sides of the shock absorber toothed plate (22) and is then fixed to the C-shaped groove by the internal hex screw (23).

7. The aircraft luggage back-mounting mechanism according to claim 6, characterized in that, The shock absorber pin (21) passes through the entire base assembly (1) and is fixed by a washer and nut. A pin hole is provided at the bottom of the shock absorber pin (21), and then a pin (25) is inserted into the pin hole. Finally, the end cap (26) is installed on the base plate (14) of the shock absorber mechanism.

8. The aircraft luggage back-mounting mechanism according to claim 2, characterized in that, The rack and pinion assembly includes a metal inner ring (12) and a shock absorber toothed plate (22). The top of the metal inner ring (12) is provided with a toothed structure, and the lower end of the shock absorber toothed plate (22) is provided with a toothed structure, which meshes the metal inner ring (12) with the shock absorber toothed plate (22).

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