Aircraft cargo bridge

Abstract

The invention belongs to the technical field of structural design of aircraft cargo bridge structures, and particularly relates to an aircraft cargo bridge, a cargo bridge main body structure is composed of two longitudinal beams, a front end plate, a rear end plate, a supporting beam and a plurality of reinforcing frames, the overall structure is stable, the bearing capacity is high, and when the aircraft cargo bridge is put down, two rolling wheels arranged at the rear end make contact with the ground; impact load and friction load can be reduced, damage is avoided, and the device can well adapt to the situation that an aircraft slides forwards at a low speed after landing and is unloaded outwards from a cargo hold.

Description

Technical Field

[0001] The present application belongs to the technical field of aircraft cargo bridge structure design, and specifically relates to an aircraft cargo bridge. Background Art

[0002] A cargo bridge is installed in the cargo hold of the aircraft. The front end of the cargo bridge is hinged to the cargo hold floor. When the cabin door is opened, the cargo bridge is lowered and the rear end contacts the ground, forming a channel for transporting cargo.

[0003] At present, the front end of the cargo bridge is hooked on the rotating shaft set on the cargo hold floor by a hook to realize the hinge connection between the front end of the cargo bridge and the cargo hold floor. In order to prevent the hook from being detached from the rotating shaft and ensure the reliability of the connection between the front end of the cargo bridge and the cargo hold floor, most of them are designed with a locking mechanism with complex structure, which is inconvenient to operate and difficult to realize the rapid disassembly and maintenance of the front end of the cargo bridge on the cargo hold floor. In addition, in order to improve the efficiency of unloading cargo from the cargo hold, in some cases, it is required that when the aircraft glides forward at a low speed after landing, the cabin door be opened and the cargo bridge be lowered to unload cargo from the cargo hold. The rear end of the cargo bridge contacts the ground, which is easy to generate large impact loads and friction loads, and is very easy to be damaged.

[0004] This application is proposed in view of the above-mentioned technical defects. Summary of the invention

[0005] The purpose of the present application is to provide an aircraft cargo bridge to overcome or alleviate at least one of the technical deficiencies of the known ones.

[0006] The technical solution of this application is: An aircraft cargo bridge, comprising: two longitudinal beams, arranged opposite to each other; The front end plate is connected between the two longitudinal beams, located at the front end of the two longitudinal beams, and is hinged to the cargo hold floor; The rear end plate is connected between the two longitudinal beams and is located at the rear ends of the two longitudinal beams; A plurality of reinforcing frames are connected between two longitudinal beams and arranged along the longitudinal direction of the two longitudinal beams; A supporting beam is arranged between the two longitudinal beams, with a front end connected to the front end plate and a rear end connected to the rear end plate; Two rollers, equipped with tires, are arranged outside the rear ends of the two longitudinal beams.

[0007] Optionally, in the above-mentioned aircraft cargo bridge, the lower edges of the rear ends of the two longitudinal beams are inclined upward.

[0008] Optionally, in the above-mentioned aircraft cargo bridge, two sets of rollers are disposed between the two longitudinal beams and the support beams and are arranged longitudinally along the two longitudinal beams.

[0009] Optionally, in the above-mentioned aircraft cargo bridge, two ear seats are provided on the cargo hold floor, and rotating shafts are provided on the two ear seats; The aircraft cargo bridge also includes: Two hooks are connected to the outer side of the front end plate and hooked on the two rotating shafts.

[0010] Optionally, the above-mentioned aircraft cargo bridge further includes: A control handle, one end of which has a pin hole, and the other end is bent, and the bent portion is hinged to the outside of the front end of a longitudinal beam through a pin shaft; A latch seat connected to the front outer side of the longitudinal beam to which the control handle is hinged; The latch is arranged on the latch seat and can be inserted into the latch hole to lock the position of the control handle. At this time, the end of one bent end of the control handle faces a rotating shaft and is stuck in the opening of the corresponding hook.

[0011] Optionally, in the above-mentioned aircraft cargo bridge, the latch has an annular protrusion; The aircraft cargo bridge also includes: The spring is sleeved on the outer circumference of the bolt, and its two ends are connected to the bolt seat and the annular protrusion, and the bolt is kept inserted into the bolt hole by elastic force.

[0012] Optionally, in the above-mentioned aircraft cargo bridge, there are two groups of control handles and their corresponding latch seats, latches, and springs, which are connected to the outer sides of the front ends of the two longitudinal beams and cooperate with the two rotating shafts and hooks.

[0013] Optionally, in the above-mentioned aircraft cargo bridge, the front end plate is welded and connected between the two longitudinal beams.

[0014] Optionally, in the above-mentioned aircraft cargo bridge, the rear end plate is welded and connected between the two longitudinal beams.

[0015] Optionally, in the above-mentioned aircraft cargo bridge, each reinforcement frame is welded and connected between two longitudinal beams.

[0016] This application has at least the following beneficial technical effects: In the aircraft cargo bridge disclosed in the above-mentioned embodiment, the main structure of the cargo bridge is composed of two longitudinal beams, a front end plate, a rear end plate, a support beam and a plurality of reinforcement frames. The overall structure is stable and has a strong load-bearing capacity. When lowering, the two rollers arranged at the rear end are in contact with the ground, which can reduce the impact load and friction load and avoid damage. It can well adapt to the situation where the aircraft glides forward at a low speed after landing and unloads cargo from the cargo hold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an aircraft cargo bridge provided in an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of a partial aircraft cargo bridge provided in an embodiment of the present application; in: 1-longitudinal beam; 2-front end plate; 3-cargo hold floor; 4-rear end plate; 5-reinforcement frame; 6-support beam; 7-roller; 8-roller rod; 9-ear seat; 10-rotating shaft; 11-hook; 12-control handle; 13-latch seat; 14-latch; 15-spring.

[0018] In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and should not be construed as limitations on the present application. DETAILED DESCRIPTION

[0019] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be described in further detail in detail and in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design.

[0020] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall have the usual meanings understood by those of ordinary skill in the art to which this application belongs. The words used in the description of this application to indicate orientation are only used to indicate relative directions or positional relationships. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. The word "include" used in the description of this application indicates that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.

[0021] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installation", "connection" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Technical personnel in the field can understand its specific meaning in this application according to the specific circumstances.

[0022] An aircraft cargo bridge, such as Figure 1 As shown, including: Two longitudinal beams 1, arranged opposite to each other; The front end plate 2 is connected between the two longitudinal beams 1, is located at the front end of the two longitudinal beams 1, and is hinged to the cargo hold floor 3; The rear end plate 4 is connected between the two longitudinal beams 1 and is located at the rear ends of the two longitudinal beams 1; A plurality of reinforcing frames 5 are connected between the two longitudinal beams 1 and arranged along the longitudinal direction of the two longitudinal beams 1; A support beam 6 is provided between the two longitudinal beams 1, with a front end connected to the front end plate 2 and a rear end connected to the rear end plate 4; Two rollers 7 , equipped with tires, are arranged outside the rear ends of the two longitudinal beams 1 .

[0023] In the aircraft cargo bridge disclosed in the above embodiment, the main structure of the cargo bridge is composed of two longitudinal beams 1, a front end plate 2, a rear end plate 4, a support beam 6 and a plurality of reinforcement frames 5. The overall structure is stable and has a strong bearing capacity. When lowering, the two rollers 7 arranged at the rear end are in contact with the ground, which can reduce the impact load and friction load and avoid damage. It can well adapt to the situation where the aircraft glides forward at a low speed after landing and unloads cargo from the cargo hold.

[0024] In some optional embodiments, in the above-mentioned aircraft cargo bridge, the lower edges of the rear ends of the two longitudinal beams 1 are tilted upward to prevent the rear end from directly contacting the ground when the cargo bridge is lowered, thereby preventing a large impact load and friction load from being generated.

[0025] In some optional embodiments, in the above-mentioned aircraft cargo bridge, two sets of rollers 8 are disposed between the two longitudinal beams 1 and the support beam 6 and arranged longitudinally along the two longitudinal beams 1 so as to reduce the friction load between the cargo and the cargo during loading and unloading.

[0026] In some optional embodiments, in the above-mentioned aircraft cargo bridge, the cargo hold floor 3 is provided with two ear seats 9, and the two ear seats 9 are provided with a rotating shaft 10; The aircraft cargo bridge also includes: Two hooks 11 are connected to the outside of the front end plate 2 and hooked on the two rotating shafts 10. That is, the front end of the cargo bridge cooperates with the rotating shafts 10 set on the cargo hold floor 3 through the two hooks 11 to achieve hinged connection, and the folding and lowering can be achieved by rotating around the axis.

[0027] In some optional embodiments, the above-mentioned aircraft cargo bridge further includes: A control handle 12, one end of which has a pin hole, and the other end is bent, and the bent portion is hinged to the outside of the front end of a longitudinal beam 1 through a pin shaft; A latch seat 13 is connected to the front outer side of the longitudinal beam 1 to which the control handle 12 is hinged; The latch 14 is arranged on the latch seat 13 and can be inserted into the latch hole to lock the position of the control handle 12. At this time, the end of the bent end of the control handle 12 faces a rotating shaft 10 and is stuck in the opening of the corresponding hook 11, such as Figure 2As shown, the hook 11 can be prevented from being separated from the rotating shaft 10, thereby ensuring the reliability of the connection between the front end of the cargo bridge and the cargo hold floor 3. The overall structure is simple, and when the cargo bridge needs to be removed, the pin 14 can be pulled out from the pin hole to release the lock on the position of the control handle 12, and then the control handle 12 can be rotated so that the end of the bent end of the control handle 12 is turned away from the corresponding rotating shaft 10 and disengaged from the opening of the corresponding hook 11, and then the hook 11 can be separated from the rotating shaft 10, and the cargo bridge can be removed. The operation is convenient, and the installation of the cargo bridge on the cargo hold floor 3 can be carried out by referring to the reverse operation of the cargo bridge removal process, which will not be repeated here.

[0028] In some optional embodiments, in the above-mentioned aircraft cargo bridge, the latch 14 has an annular protrusion; The aircraft cargo bridge also includes: The spring 15 is sleeved on the outer circumference of the latch 14, and its two ends are connected to the latch seat 13 and the annular protrusion. The latch 14 is kept inserted in the latch hole by relying on the elastic force, thereby ensuring the reliable locking of the position of the control handle 12. When the cargo bridge needs to be removed, the latch 14 can be pulled to overcome the elastic force of the spring 15, so that the latch 14 is pulled out of the latch hole, thereby releasing the lock on the position of the control handle 12.

[0029] In some optional embodiments, in the above-mentioned aircraft cargo bridge, there are two groups of control handles 12 and their corresponding latch seats 13, latches 14, and springs 15, which are connected to the outer front ends of the two longitudinal beams 1 and cooperate with the two rotating shafts 10 and the hooks 11.

[0030] In some optional embodiments, in the above-mentioned aircraft cargo bridge, the front end plate 2 is welded and connected between the two longitudinal beams 1 .

[0031] In some optional embodiments, in the above-mentioned aircraft cargo bridge, the rear end plate 4 is welded and connected between the two longitudinal beams 1 .

[0032] In some optional embodiments, in the above-mentioned aircraft cargo bridge, each reinforcement frame 5 is welded and connected between two longitudinal beams 1 .

[0033] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In the absence of conflict, the embodiments in this application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0034] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. An aircraft cargo bridge, characterized in that: include: Two longitudinal beams (1) are arranged opposite to each other; A front end plate (2) connected between the two longitudinal beams (1), located at the front ends of the two longitudinal beams (1), and hinged to the cargo hold floor (3); A rear end plate (4) connected between the two longitudinal beams (1) and located at the rear ends of the two longitudinal beams (1); A plurality of reinforcement frames (5) connected between the two longitudinal beams (1) and arranged along the longitudinal direction of the two longitudinal beams (1); A support beam (6) is arranged between the two longitudinal beams (1), with a front end connected to the front end plate (2) and a rear end connected to the rear end plate (4); Two rollers (7) are provided with tires and are arranged outside the rear ends of the two longitudinal beams (1).

2. The aircraft cargo bridge according to claim 1, characterized in that: The lower edges of the rear ends of the two longitudinal beams (1) are inclined upward.

3. The aircraft cargo bridge according to claim 1, characterized in that: Two groups of rolling bars (8) are arranged between the two longitudinal beams (1) and the support beam (6), and are arranged in the longitudinal direction of the two longitudinal beams (1).

4. The aircraft cargo bridge according to claim 1, characterized in that: The cargo hold floor (3) is provided with two ear seats (9), and the two ear seats (9) are provided with rotating shafts (10); The aircraft cargo bridge also includes: Two hooks (11) are connected to the outside of the front end plate (2) and hooked on the two rotating shafts (10).

5. The aircraft cargo bridge according to claim 4, characterized in that: Also includes: A control handle (12) having a pin hole at one end and a bent end, wherein the bent portion is hinged to the outside of the front end of a longitudinal beam (1) via a pin shaft; A latch seat (13) connected to the outer front end of the longitudinal beam (1) to which the control handle (12) is hinged; A latch (14) is arranged on the latch seat (13) and can be inserted into the latch hole to lock the position of the control handle (12). At this time, the end of one bent end of the control handle (12) faces a rotating shaft (10) and is stuck in the opening of the corresponding hook (11).

6. The aircraft cargo bridge according to claim 5, characterized in that: The latch (14) has an annular protrusion; The aircraft cargo bridge also includes: The spring (15) is sleeved on the outer circumference of the latch pin (14), and its two ends are connected to the latch pin seat (13) and the annular protrusion, so that the latch pin (14) is kept inserted into the latch pin hole by elastic force.

7. The aircraft cargo bridge according to claim 6, characterized in that: There are two groups of control handles (12) and their corresponding latch seats (13), latches (14), and springs (15), which are connected to the outside of the front ends of the two longitudinal beams (1) and cooperate with the two rotating shafts (10) and the hooks (11).

8. The aircraft cargo bridge according to claim 1, characterized in that: The front end plate (2) is welded and connected between the two longitudinal beams (1).

9. The aircraft cargo bridge according to claim 1, characterized in that: The rear end plate (4) is welded between the two longitudinal beams (1).

10. The aircraft cargo bridge according to claim 1, characterized in that: Each reinforcement frame (5) is welded and connected between two longitudinal beams (1).

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