Aircraft cargo bridge

Abstract

The invention particularly relates to an aircraft cargo bridge which comprises a cargo bridge body, an auxiliary cargo bridge, a limiting beam, a driving rocker arm, an ox horn rocker arm and a transmission rod system. The front end of the cargo bridge body is hinged to a cargo hold structure. The front end of the auxiliary cargo bridge is hinged to the tail end of the cargo bridge body. The front end of the driving rocker arm is hinged to a cargo hold structure; the root of the ox horn rocker arm is hinged to the tail end of the cargo bridge body, and the tail end is clamped in the sliding groove; the front end of the transmission rod system is hinged to the rear end of the driving rocker arm, and the rear end of the transmission rod system is hinged to the ox horn rocker arm; when the cargo bridge body is put down, the driving rocker arm rotates, the oxhorn rocker arm can be driven to rotate through the transmission rod system, the tail end of the oxhorn rocker arm slides in the sliding groove, and therefore the auxiliary cargo bridge is driven to rotate, and the auxiliary cargo bridge is put down synchronously and makes contact with the ground. When the cargo bridge body is folded, the driving rocker arm rotates, the oxhorn rocker arm can be driven to rotate through the transmission rod system, the tail end of the oxhorn rocker arm slides in the sliding groove, and therefore the auxiliary cargo bridge is driven to rotate and synchronously folded.

Description

Technical Field

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

[0002] The cargo bridge is used to form a transfer passage between the cargo and the carrier. Most of the cargo bridges on the aircraft are designed with one end hinged to the cargo hold structure and the other end able to contact the ground, thus forming a transition bridge for the transfer of cargo.

[0003] In order to save space, an auxiliary cargo bridge needs to be set at the end of the main cargo bridge on the aircraft. When the cargo bridge is lowered, the auxiliary cargo bridge is lowered with the main cargo bridge and contacts the ground. When the cargo bridge structure is folded, the auxiliary cargo bridge is folded with the main cargo bridge.

[0004] Currently, most cargo bridges on aircraft are designed to use electrical and hydraulic systems to drive auxiliary cargo bridges so that the auxiliary cargo bridges can be lowered and folded up along with the main body of the cargo bridge. This technical solution requires the installation of an additional driving power source in addition to the main driving power source of the cargo bridge. The overall structure is complex, the cost is high, and the reliability and coordination are poor.

[0005] This application is proposed in view of the above-mentioned technical defects. Summary of the invention

[0006] 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.

[0007] The technical solution of this application is:

[0008] An aircraft cargo bridge comprises a cargo bridge body, an auxiliary cargo bridge, a limit beam, a driving rocker arm, a bull horn rocker arm, and a transmission rod system;

[0009] The front end of the cargo bridge body is hinged to the cargo hold structure;

[0010] The front end of the auxiliary cargo bridge is hinged at the end of the cargo bridge body, and a slide groove is provided at the bottom of the front end;

[0011] The front end of the driving rocker arm is hinged to the cargo hold structure;

[0012] The root of the bullhorn rocker arm is hinged to the end of the cargo bridge body, and the end is stuck in the slide slot;

[0013] The transmission rod system is arranged on the cargo bridge body, the front end of which is hinged to the rear end of the driving rocker arm, and the rear end is hinged to the bullhorn rocker arm;

[0014] When the cargo bridge body is lowered, the driving rocker arm rotates, which can drive the bullhorn rocker arm to rotate through the transmission rod system, so that the end of the bullhorn rocker arm slides in the slide slot, thereby driving the auxiliary cargo bridge to rotate, so that the auxiliary cargo bridge is lowered synchronously and contacts the ground;

[0015] When the cargo bridge body is folded up, the driving rocker arm rotates, which can drive the bullhorn rocker arm to rotate through the transmission rod system, so that the end of the bullhorn rocker arm slides in the slide groove, thereby driving the auxiliary cargo bridge to rotate and the auxiliary cargo bridge is folded up synchronously.

[0016] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the front end of the cargo bridge body and the cargo compartment structure are matched through a single-ear and double-ear structure and are hinged with a pin shaft.

[0017] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, a hook is provided at the front end of the auxiliary cargo bridge, and a hanging shaft is provided at the end of the cargo bridge body, and the hook is hooked on the hanging shaft for hinged connection.

[0018] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the front end of the driving rocker arm and the cargo compartment structure are matched through a single-double-ear structure and are hinged with a pin shaft.

[0019] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the root of the bull-horn rocker arm is formed on the rotating shaft or inserted in a square hole support on the rotating shaft. The rotating shaft is installed at the end of the cargo bridge body through a clamp support, and a bearing is arranged in the clamp support and sleeved on the rotating shaft.

[0020] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the side walls on both sides of the slide slot have strip grooves, and the end of the bull-horn rocker arm has two sliders, and the two sliders are stuck in the two strip grooves.

[0021] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, there is a cavity inside the cargo bridge body, and the transmission rod system is arranged in the cavity. The front end extends from the front end of the cargo bridge body and is hinged to the rear end of the driving rocker arm, and the rear end of the transmission rod system extends from the end of the cargo bridge body and is hinged on the rotating shaft.

[0022] According to at least one embodiment of the present application, the above-mentioned aircraft cargo bridge further includes a limit beam;

[0023] The restraining beam is connected to the cargo hold structure;

[0024] When the cargo bridge body is retracted into place, the end of the auxiliary cargo bridge rests against the limit beam.

[0025] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the transmission rod system includes a support, a transmission rocker arm, a forward transmission rod, and a rearward transmission rod;

[0026] The support is connected in the cavity of the cargo bridge body;

[0027] One end of the transmission rocker arm is hinged on the support;

[0028] The rear end of the forward transmission tie rod is hinged on the transmission rocker arm, and the front end extends from the front end of the cargo bridge body and is hinged to the rear end of the driving rocker arm;

[0029] The front end of the rear transmission pull rod is hinged to the other end of the transmission rocker arm, and the rear end extends from the end of the cargo bridge body and is hinged to the rotating shaft.

[0030] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the support and the cargo bridge body are connected by bolts or welding.

[0031] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the transmission rocker arm and the support are matched through a single-double-ear structure and are hinged with a pin shaft.

[0032] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the forward transmission rod and the transmission rocker arm are matched through a single-double-ear structure and are hinged with a pin shaft;

[0033] The forward transmission pull rod and the driving rocker arm are matched with each other through a single-double-ear structure and are hinged with a pin shaft.

[0034] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, the rear transmission rod and the transmission rocker arm are matched through a single-double-ear structure and are hinged with a pin shaft;

[0035] The rear transmission pull rod and the rotating shaft are matched through a single-double-ear structure and are hinged by a pin shaft.

[0036] According to at least one embodiment of the present application, in the above-mentioned aircraft cargo bridge, there are multiple groups of supports, transmission rockers, forward transmission rods, and rearward transmission rods in the transmission rod system, wherein:

[0037] Each support is arranged along the axial direction of the cargo bridge body, and the front end of the forward transmission rod at the front end extends from the front end of the cargo bridge body and is hinged to the rear end of the driving rocker arm;

[0038] The rear end of the rear transmission tie rod at the rearmost end extends from the end of the cargo bridge body and is hinged to the rotating shaft;

[0039] The front end of the forward transmission rod in the middle position is hinged to the front transmission rocker arm, and the rear end of the rear transmission rod in the middle position is hinged to the rear transmission rocker arm.

[0040] This application has at least the following beneficial technical effects:

[0041] Provided is an aircraft cargo bridge, in which an auxiliary cargo bridge is designed to use a pure mechanical mechanism as a driving device, and no additional driving power source is required. The structure is simple and the drive is reliable. The auxiliary cargo bridge is driven by the movement of the cargo bridge body and can be automatically lowered and folded up with the cargo bridge body with good synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1is a schematic diagram of lowering an aircraft cargo bridge provided by an embodiment of the present application;

[0043] Figure 2 is a schematic diagram of a folded aircraft cargo bridge provided by an embodiment of the present application;

[0044] in:

[0045] 1- cargo bridge body; 2- auxiliary cargo bridge; 3- limit beam; 4- driving rocker arm; 5- bullhorn rocker arm; 6- transmission rod system; 7- support; 8- transmission rocker arm; 9- forward transmission rod; 10- backward transmission rod.

[0046] 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

[0047] 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.

[0048] 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.

[0049] 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.

[0050] An aircraft cargo bridge comprises a cargo bridge body 1, an auxiliary cargo bridge 2, a limit beam 3, a driving rocker arm 4, a bullhorn rocker arm 5, and a transmission rod system 6.

[0051] The front end of the cargo bridge body 1 is hinged to the cargo hold structure, and can be specifically connected to the cargo hold structure through a single-ear and double-ear structure, and hinged with a pin. A driving power source is set between the cargo bridge body 1 and the cargo hold structure, which can be an electrical mechanism or a hydraulic mechanism, so as to drive the cargo bridge body 1 to be folded or lowered.

[0052] The front end of the auxiliary cargo bridge 2 is hinged to the end of the cargo bridge body 1. Specifically, a hook can be set at the front end of the auxiliary cargo bridge 2, and a hanging shaft can be set at the end of the cargo bridge body 1, so that the hook is hooked on the hanging shaft for hinge connection. The bottom of the front end of the auxiliary cargo bridge 2 has a slide groove.

[0053] The restraining beam 3 is connected to the cargo hold structure.

[0054] The front end of the driving rocker arm 4 is hinged to the cargo hold structure, and specifically can be matched with the cargo hold structure through a single-ear and double-ear structure, and hinged with a pin shaft.

[0055] The root of the bull horn rocker arm 5 is hinged at the end of the cargo bridge body 1. Specifically, the root of the bull horn rocker arm 5 can be formed on the rotating shaft or inserted in the square hole support on the rotating shaft. The rotating shaft is installed at the end of the cargo bridge body 1 through a clamping support, and a bearing is set in the clamping support and sleeved on the rotating shaft. The end of the bull horn rocker arm 5 is stuck in the slide groove. Specifically, the side walls of the two sides of the slide groove can be designed to have strip grooves, and the end of the bull horn rocker arm 5 has two sliders, and the two sliders are stuck in the two strip grooves.

[0056] The transmission rod system 6 is arranged on the cargo bridge body 1, and the front end is hinged to the rear end of the driving rocker arm 4, and the rear end is hinged to the bullhorn rocker arm 5. Specifically, it can be designed that there is a cavity inside the cargo bridge body 1, and the transmission rod system 6 is arranged in the cavity, and the front end extends from the front end of the cargo bridge body 1 and is hinged to the rear end of the driving rocker arm 4. The rear end of the transmission rod system 6 extends from the end of the cargo bridge body 1 and is hinged to the bullhorn rocker arm 5, which can be specifically hinged to the rotating shaft.

[0057] When the aircraft cargo bridge disclosed in the above embodiment is lowered, the power source can be driven to drive the cargo bridge body 1 to be lowered. At this time, the driving rocker arm 4 is rotated, and the horn rocker arm 5 can be driven to rotate through the transmission rod system 6, so that the end of the horn rocker arm 5 slides in the slide groove, thereby driving the auxiliary cargo bridge 2 to rotate, so that the auxiliary cargo bridge 2 is synchronously lowered and contacts the ground, and forms a transition bridge together with the auxiliary cargo bridge 2 for cargo transfer, such as Figure 1 shown.

[0058] The aircraft cargo bridge disclosed in the above embodiment can drive the power source to drive the cargo bridge body 1 to be retracted when it is folded. At this time, the driving rocker arm 4 is rotated, and the horn rocker arm 5 can be driven to rotate through the transmission rod system 6, so that the end of the horn rocker arm 5 slides in the slide groove, thereby driving the auxiliary cargo bridge 2 to rotate, so that the auxiliary cargo bridge 2 is synchronously retracted. When the cargo bridge body 1 is folded into place, the end of the auxiliary cargo bridge 2 abuts against the limit beam 3, and the limit beam 3 can limit the auxiliary cargo bridge 2 from shaking significantly, causing safety hazards, such as Figure 2 shown.

[0059] In some optional embodiments, the transmission rod system 6 may be designed to include a support 7 , a transmission rocker arm 8 , a forward transmission rod 9 , and a rearward transmission rod 10 .

[0060] The support 7 is connected in the cavity of the cargo bridge body 1, and can be connected by bolts or welding.

[0061] One end of the transmission rocker arm 8 is hinged on the support 7, and can be specifically matched with the support 7 through a single-double-ear structure and hinged with a pin.

[0062] The rear end of the forward transmission rod 9 is hinged on the transmission rocker arm 8, and can be specifically matched with the transmission rocker arm 8 through a single-ear and double-ear structure, and can be hinged with a pin. The front end of the forward transmission rod 9 extends from the front end of the cargo bridge body 1 and is hinged with the rear end of the driving rocker arm 4, and can be specifically matched with the rear end of the driving rocker arm 4 through a single-ear and double-ear structure, and can be hinged with a pin.

[0063] The front end of the rear transmission rod 10 is hinged to the other end of the transmission rocker arm 8, and can be specifically matched with the other end of the transmission rocker arm 8 through a single-double ear structure and hinged with a pin. The rear end of the rear transmission rod 10 extends from the end of the cargo bridge body 1 and is hinged with the rotating shaft, and can be specifically matched with the rotating shaft through a single-double ear structure and hinged with a pin.

[0064] Furthermore, it is possible to design a transmission rod system 6 with multiple groups of supports 7, transmission rocker arms 8, forward transmission rods 9, and rearward transmission rods 10, wherein the supports 7 are arranged axially along the cargo bridge body 1, and the front end of the forward transmission rod 9 at the front end extends from the front end of the cargo bridge body 1 and is hinged to the rear end of the driving rocker arm 4; the rear end of the rearward transmission rod 10 at the rear end extends from the end of the cargo bridge body 1 and is hinged to the rotating shaft, and the front end of the forward transmission rod 9 at the middle position is hinged to the other end of the transmission rocker arm 8 at the front, and the rear end of the rear transmission rod 10 at the middle position is hinged to the transmission rocker arm 8 at the rear.

[0065] The number of the supports 7, their axial distribution positions in the cargo bridge body 1, and the lengths of the forward transmission rods 9 and the rear transmission rods 10 can be designed according to the actual application and will not be described in more detail here.

[0066] The aircraft cargo bridge disclosed in the above embodiment is designed with the auxiliary cargo bridge 2 being driven by a pure mechanical mechanism, without the need for an additional driving power source. The structure is simple and the drive is reliable. The auxiliary cargo bridge 2 is driven by the movement of the cargo bridge body 1 and can be automatically lowered and folded up with the cargo bridge body with good synchronization.

[0067] 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: It comprises a cargo bridge body (1), an auxiliary cargo bridge (2), a limit beam (3), a driving rocker arm (4), a bullhorn rocker arm (5), and a transmission rod system (6); The front end of the cargo bridge body (1) is hinged to the cargo hold structure; The front end of the auxiliary cargo bridge (2) is hinged to the end of the cargo bridge body (1), and a slide groove is provided at the bottom of the front end; The front end of the driving rocker arm (4) is hinged on the cargo hold structure; The root of the bullhorn rocker arm (5) is hinged to the end of the cargo bridge body (1), and the end is stuck in the slide groove; The transmission rod system (6) is arranged on the cargo bridge body (1), the front end of which is hinged to the rear end of the driving rocker arm (4), and the rear end is hinged to the horn rocker arm (5); When the cargo bridge body (1) is lowered, the driving rocker arm (4) is rotated, which can drive the horn rocker arm (5) to rotate through the transmission rod system (6), so that the end of the horn rocker arm (5) slides in the slide groove, thereby driving the auxiliary cargo bridge (2) to rotate, so that the auxiliary cargo bridge (2) is synchronously lowered and contacts the ground; When the cargo bridge body (1) is folded up, the driving rocker arm (4) is rotated, which can drive the horn rocker arm (5) to rotate through the transmission rod system (6), so that the end of the horn rocker arm (5) slides in the slide groove, thereby driving the auxiliary cargo bridge (2) to rotate, so that the auxiliary cargo bridge (2) is folded up synchronously.

2. The aircraft cargo bridge according to claim 1, characterized in that: The front end of the cargo bridge body (1) and the cargo hold structure are matched with a single-ear and double-ear structure and are hinged with a pin shaft.

3. The aircraft cargo bridge according to claim 2, characterized in that: A hook is arranged at the front end of the auxiliary cargo bridge (2), and a hanging shaft is arranged at the end of the cargo bridge body (1), and the hook is hooked on the hanging shaft for hinged connection.

4. The aircraft cargo bridge according to claim 3, characterized in that: The front end of the driving rocker arm (4) is matched with the cargo hold structure through a single-double-ear structure and is hinged with a pin shaft.

5. The aircraft cargo bridge according to claim 4, characterized in that: The root of the bullhorn rocker arm (5) is formed on the rotating shaft or inserted into a square hole support on the rotating shaft. The rotating shaft is installed at the end of the cargo bridge body (1) through a clamping support, and a bearing is arranged in the clamping support and sleeved on the rotating shaft.

6. The aircraft cargo bridge according to claim 5, characterized in that: The side walls on both sides of the slide groove are provided with strip grooves, and the end of the horn rocker arm (5) is provided with two sliding blocks, and the two sliding blocks are clamped in the two strip grooves.

7. The aircraft cargo bridge according to claim 6, characterized in that: There is a cavity inside the cargo bridge body (1), and the transmission rod system (6) is arranged in the cavity. The front end extends from the front end of the cargo bridge body (1) and is hinged to the rear end of the driving rocker arm (4). The rear end of the transmission rod system (6) extends from the end of the cargo bridge body (1) and is hinged on the rotating shaft.

8. The aircraft cargo bridge according to claim 7, characterized in that: Also includes a limit beam (3); The limit beam (3) is connected to the cargo hold structure; When the cargo bridge body (1) is retracted into place, the end of the auxiliary cargo bridge (2) abuts against the limit beam (3).

9. The aircraft cargo bridge according to claim 8, characterized in that: The transmission rod system (6) comprises a support (7), a transmission rocker arm (8), a forward transmission pull rod (9), and a backward transmission pull rod (10); The support (7) is connected in the cavity of the cargo bridge body (1); One end of the transmission rocker arm (8) is hinged on the support (7); The rear end of the forward transmission rod (9) is hinged on the transmission rocker arm (8), and the front end extends from the front end of the cargo bridge body (1) and is hinged to the rear end of the driving rocker arm (4); The front end of the rear transmission rod (10) is hinged to the other end of the transmission rocker arm (8), and the rear end extends from the end of the cargo bridge body (1) and is hinged to the rotating shaft.

10. The aircraft cargo bridge according to claim 9, characterized in that: The support (7) and the cargo bridge body (1) are connected by bolts or welding.

11. The aircraft cargo bridge according to claim 10, characterized in that: The transmission rocker arm (8) and the support (7) are matched with each other through a single-double-ear structure and are hinged with a pin shaft.

12. The aircraft cargo bridge according to claim 11, characterized in that: The forward transmission pull rod (9) and the transmission rocker arm (8) are matched with each other through a single-double-ear structure and are hinged with a pin shaft; The forward transmission pull rod (9) and the driving rocker arm (4) are matched with each other through a single-double-ear structure and are hinged with a pin shaft.

13. The aircraft cargo bridge according to claim 12, characterized in that: The rear transmission pull rod (10) and the transmission rocker arm (8) are matched with each other through a single-double-ear structure and are hinged with a pin shaft; The rear transmission pull rod (10) and the rotating shaft are matched through a single-double-ear structure and are hinged with a pin shaft.

14. The aircraft cargo bridge according to claim 13, characterized in that: The transmission rod system (6) includes a plurality of groups of supports (7), transmission rocker arms (8), forward transmission pull rods (9), and rearward transmission pull rods (10), wherein: The supports (7) are arranged axially along the cargo bridge body (1), and the front end of the forward transmission rod (9) at the front end extends from the front end of the cargo bridge body (1) and is hinged to the rear end of the driving rocker arm (4); The rear end of the rear transmission rod (10) at the rearmost end extends from the end of the cargo bridge body (1) and is hinged to the rotating shaft; The front end of the forward transmission rod (9) at the middle position is hinged to the transmission rocker arm (8) at the front, and the rear end of the rear transmission rod (10) at the middle position is hinged to the transmission rocker arm (8) at the rear.

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