Multifunctional rocker arm of airplane cabin door

Abstract

The utility model belongs to the technical field of airplane cabin door mechanism design, and particularly relates to an airplane cabin door multifunctional rocker arm which comprises a center rotating shaft, a transmission mechanism connecting rocker arm, a power assisting mechanism connecting rocker arm and an anti-sinking crank. The center rotating shaft is hinged to the cabin door structure and can rotate around the axis of the center rotating shaft. The transmission mechanism connecting rocker arm is connected to the center rotating shaft and used for being hinged to the transmission mechanism. The power-assisted mechanism connecting rocker arm is connected to the center rotating shaft and used for being hinged to a power-assisted mechanism. The anti-sinking crank is connected to the central rotating shaft; an anti-sinking stop mechanism is arranged on the cabin door structure; when the cabin door is opened and closed, the power assisting mechanism provides power for rotation of the center rotating shaft through the power assisting mechanism connecting rocker arm, the center rotating shaft drives the transmission mechanism connecting rocker arm to rotate, and then the transmission mechanism is driven to act, so that the cabin door is opened and closed. When the cabin door is opened in place, the end of the anti-sinking crank abuts against the anti-sinking stop mechanism.

Description

Technical Field

[0001] The present application belongs to the technical field of aircraft cabin door mechanism design, and specifically relates to a multifunctional rocker arm for an aircraft cabin door. Background Art

[0002] The opening and closing of an aircraft door requires the coordination of a power assist mechanism and a transmission mechanism. The power assist mechanism, which can be a spring assembly or hydraulic actuator, provides the door's opening and closing force. The transmission mechanism directly pushes the door open and close. Furthermore, to prevent the door from sinking during opening, an anti-sinking mechanism is designed.

[0003] The power assist mechanism and transmission mechanism of an aircraft cabin door are connected by a connecting assembly. This connecting assembly usually has a relatively complex and delicate structure and is designed separately from the anti-sinking mechanism. This, to a certain extent, increases the complexity and weight of the overall structure of the aircraft cabin door, making it inconvenient for disassembly, assembly, inspection, and maintenance.

[0004] This application is proposed in view of the above-mentioned technical defects. Utility Model Content

[0005] The purpose of the present application is to provide a multifunctional rocker arm for an aircraft cabin door, so as to overcome or alleviate at least one of the technical deficiencies of the known ones.

[0006] The technical solution of this application is:

[0007] A multifunctional rocker arm for an aircraft cabin door, comprising:

[0008] Central rotating shaft, transmission mechanism connected to rocker arm, power assist mechanism connected to rocker arm, anti-sinking crank;

[0009] The central shaft is hinged to the door structure and can rotate around its own axis;

[0010] The transmission mechanism connecting rocker arm is connected to the central rotating shaft for being hinged to the transmission mechanism;

[0011] The power assist mechanism connecting rocker arm is connected to the central rotating shaft for being hinged to the power assist mechanism;

[0012] The anti-sinking crank is connected to the central rotating shaft;

[0013] An anti-sinking stop mechanism is provided on the hatch structure;

[0014] When opening or closing the door, the power assist mechanism provides power to the rotation of the central shaft through the power assist mechanism connected to the rocker arm. The central shaft drives the transmission mechanism connected to the rocker arm to rotate, which in turn drives the transmission mechanism to operate, so that the door opens or closes.

[0015] When the hatch is opened, the anti-sinking crank rotates driven by the central shaft. When the hatch is fully opened, the end of the anti-sinking crank abuts against the anti-sinking stop mechanism to prevent the hatch from sinking.

[0016] According to at least one embodiment of the present application, in the above-mentioned multifunctional rocker arm of the aircraft cabin door, the transmission mechanism connecting the rocker arm and the transmission mechanism can be hinged with pins through a single-ear and double-ear structure.

[0017] According to at least one embodiment of the present application, in the above-mentioned multifunctional rocker arm of the aircraft cabin door, the rocker arm connected to the power assist mechanism can be hinged with pins through a single-ear and double-ear structure.

[0018] According to at least one embodiment of the present application, in the above-mentioned aircraft cabin door multifunctional rocker arm, the anti-sinking stop mechanism includes an anti-sinking stop boss, and the end of the anti-sinking crank has a flat end, which abuts against the anti-sinking stop boss when the cabin door is fully opened; or,

[0019] The anti-sinking stop mechanism includes an anti-sinking stop slide groove, and the end of the anti-sinking crank has a flat end head. When the hatch is opened to its full position, the flat end head is stuck in the anti-sinking stop slide groove to prevent the hatch from sinking.

[0020] According to at least one embodiment of the present application, in the above-mentioned multifunctional rocker arm of the aircraft cabin door, the central rotating shaft, the transmission mechanism connecting the rocker arm, the power assist mechanism connecting the rocker arm, and the anti-sinking crank are an integrally formed structure.

[0021] This application has at least the following beneficial technical effects:

[0022] Provided is a multifunctional rocker arm for an aircraft cabin door, which integrates the functions of a power assist mechanism, a connecting component between a transmission mechanism, and an anti-sinking mechanism, thereby reducing the complexity and weight of the overall structure of the aircraft cabin door and facilitating disassembly, assembly, inspection, and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a multifunctional rocker arm for an aircraft cabin door provided in an embodiment of the present application at one angle;

[0024] Figure 2 is a schematic diagram of the multifunctional rocker arm of an aircraft cabin door provided by an embodiment of the present application from another angle;

[0025] in:

[0026] 1-Center shaft; 2-Transmission mechanism connected to the rocker arm; 3-Power assist mechanism connected to the rocker arm; 4-Anti-sinking crank; 5-Flat end.

[0027] In order to better illustrate this 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 understood as limiting this application. DETAILED DESCRIPTION

[0028] To make the technical solution and its advantages of this application more clear, the technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only some of the embodiments of this application and are only used to explain this application, not to limit this application. It should be noted that for ease of description, only the parts relevant to this application are shown in the accompanying drawings, and other relevant parts can refer to the general design.

[0029] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application should have the usual meanings understood by those skilled in the art in the field to which this application belongs. The words indicating orientation used in the description of this application 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 means 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.

[0030] In addition, it should be noted that, unless otherwise clearly stipulated 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.

[0031] A multifunctional rocker arm for an aircraft door, such as Figure 1-2 As shown, it includes a central rotating shaft 1, a transmission mechanism connecting the rocker arm 2, a power-assisting mechanism connecting the rocker arm 3, and an anti-sinking crank 4.

[0032] The central shaft 1 is hinged on the door structure and can rotate around its own axis. Specifically, the central shaft 1 can be designed to support structures such as ears or bearings to be hinged on the door structure, or to be sleeved on the shaft of the door-related structure.

[0033] The transmission mechanism connecting rocker arm 2 is connected to the central shaft 1 for being hinged to the transmission mechanism, and can be hinged to the transmission mechanism through a single-ear and double-ear structure with pins.

[0034] The power assist mechanism connecting rocker arm 3 is connected to the central shaft 1 for being hinged to the power assist mechanism, and can be hinged to the power assist mechanism through a single-ear and double-ear structure with pins.

[0035] The anti-sinking crank 4 is connected to the central rotating shaft 1, and an anti-sinking stop mechanism is provided on the hatch structure.

[0036] When opening and closing the hatch, the power assist mechanism provides assistance for the rotation of the central shaft 1 through the power assist mechanism connected to the rocker arm 3. The central shaft 1 drives the transmission mechanism connected to the rocker arm 2 to rotate, and then drives the transmission mechanism to operate, so that the hatch is opened and closed.

[0037] When the hatch is opened, the anti-sinking crank 4 rotates driven by the central shaft 1. When the hatch is fully opened, the end of the anti-sinking crank 4 abuts against the anti-sinking stop mechanism to prevent the hatch structure from continuing to move, thereby preventing the hatch from sinking.

[0038] Specifically, the anti-sinking stop mechanism can be designed to include an anti-sinking stop boss, and the end of the anti-sinking crank 4 can be designed to have a flat end head 5, so that the flat end head 5 abuts against the anti-sinking stop boss when the hatch is fully opened.

[0039] The anti-sinking stop mechanism can also be designed to include an anti-sinking stop slide groove, and the end of the anti-sinking crank (4) has a flat end head 5. When the hatch is opened to the right position, the flat end head 5 is stuck in the hatch in the anti-sinking stop slide groove.

[0040] The anti-sinking stop mechanism specifically coordinated with the anti-sinking crank 4 can be specially designed by relevant technical personnel based on actual conditions when applying the multifunctional rocker arm for aircraft cabin doors disclosed in this application.

[0041] The multifunctional rocker arm of the aircraft cabin door disclosed in the above embodiment integrates the functions of the power assist mechanism, the connecting components between the transmission mechanism and the anti-sinking mechanism, thereby reducing the complexity and weight of the overall structure of the aircraft cabin door and facilitating disassembly, assembly, inspection and maintenance.

[0042] To further simplify assembly, the central rotating shaft 1, the transmission mechanism connecting rocker arm 2, the assist mechanism connecting rocker arm 3, and the anti-sinking crank 4 can be designed as an integrated structure. The axial connection position of the transmission mechanism connecting rocker arm 2, the assist mechanism connecting rocker arm 3, and the anti-sinking crank 4 on the central rotating shaft 1 and the circumferential intersection angle can be determined based on the actual coordination with the transmission mechanism, the assist mechanism, and the anti-sinking stop mechanism.

[0043] In order to further reduce the weight, the transmission mechanism can be further designed to connect the rocker arm 2 and the anti-sinking crank 4 with weight-reducing holes.

[0044] 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 replacements to the relevant technical features, and the technical solutions after these changes or replacements will fall within the scope of protection of the present application.

Claims

1. A multifunctional rocker arm for an aircraft cabin door, characterized in that: include: A central rotating shaft (1), a transmission mechanism connecting the rocker arm (2), a power assist mechanism connecting the rocker arm (3), and an anti-sinking crank (4); The central rotating shaft (1) is hinged to the door structure and can rotate around its own axis; The transmission mechanism connecting rocker arm (2) is connected to the central rotating shaft (1) for being hinged to the transmission mechanism; The power assist mechanism connecting rocker arm (3) is connected to the central rotating shaft (1) for being hinged to the power assist mechanism; The anti-sinking crank (4) is connected to the central rotating shaft (1); An anti-sinking stop mechanism is provided on the hatch structure; When the hatch is opened or closed, the power assist mechanism provides power to the rotation of the central rotating shaft (1) through the power assist mechanism connected to the rocker arm (3), and the central rotating shaft (1) drives the transmission mechanism connected to the rocker arm (2) to rotate, thereby driving the transmission mechanism to operate, so that the hatch is opened or closed; When the hatch door is opened, the anti-sinking crank (4) rotates under the drive of the central rotating shaft (1); when the hatch door is fully opened, the end of the anti-sinking crank (4) abuts against the anti-sinking stop mechanism to prevent the hatch door from sinking.

2. The multifunctional rocker arm for aircraft cabin door according to claim 1, characterized in that: The transmission mechanism connecting rocker arm (2) and the transmission mechanism can be hinged with pins through a single-ear and double-ear structure.

3. The multifunctional rocker arm for aircraft cabin door according to claim 1, characterized in that: The power assist mechanism connecting rocker arm (3) and the power assist mechanism can be hinged with pins through a single-ear and double-ear structure.

4. The multifunctional rocker arm for aircraft cabin door according to claim 1, characterized in that: The anti-sinking stop mechanism comprises an anti-sinking stop boss, and the end of the anti-sinking crank (4) has a flat end head (5), and when the hatch is fully opened, the flat end head (5) abuts against the anti-sinking stop boss; or, The anti-sinking stop mechanism comprises an anti-sinking stop slide groove, and the end of the anti-sinking crank (4) is provided with a plane end head (5). When the hatch door is opened to the right position, the plane end head (5) is stuck in the hatch door in the anti-sinking stop slide groove.

5. The multifunctional rocker arm for aircraft cabin door according to claim 1, characterized in that: The central rotating shaft (1), the transmission mechanism connecting the rocker arm (2), the power-assisting mechanism connecting the rocker arm (3), and the anti-sinking crank (4) are an integrally formed structure.

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