Hinge connected inwardly upwardly opening aircraft cabin door guide structure

Abstract

The application belongs to the field of hinge connection inward and upward opening aircraft cabin door guide structure design, and particularly relates to a hinge connection inward and upward opening aircraft cabin door guide structure. In the process of opening and closing the cabin door, the guide matching assembly and the linear guide groove arranged at the far end of the hinge are used for guiding, so that the problems such as shaking and inaccurate movement position in the process of opening and closing the cabin door can be avoided, the structure is simple, the overall weight of the aircraft is not greatly increased, and the cabin door can be limited to avoid over-limit opening and closing. The linear guide groove arranged on the aircraft body replaces the arc-shaped guide groove, the machining process is good, the jamming between the cabin door and the roller in the process of opening and closing the cabin door can be avoided, in addition, in the process of opening and closing the cabin door, the arc-shaped guide groove roller makes reciprocating motion in the arc-shaped limiting groove through the design of the installation shaft trajectory line, the structural space can be fully utilized, and the overall weight of the aircraft is not greatly increased.

Description

Technical Field

[0001] This application belongs to the field of hinged connection inward and upward opening aircraft cabin door guide structure design, specifically relating to a hinged connection inward and upward opening aircraft cabin door guide structure. Background Technology

[0002] Aircraft cabin doors that open inwards and upwards are connected to the fuselage at one end via a hinge and are driven to open and close by an actuator. To avoid problems such as shaking or inaccurate movement during the opening and closing of the cabin door, the following two technical solutions are typically used in the design:

[0003] 1) Increasing the size of the hinges and improving the structural strength of the cabin door to ensure smooth operation during opening and closing would significantly increase the overall weight of the aircraft, which is inconsistent with current requirements for aircraft weight reduction.

[0004] 2) At the far end of the hinge, guide grooves and guide wheels are set on the hatch and the fuselage to cooperate with each other. The guide grooves are arc-shaped and centered on the hinge pivot. The size span is large and difficult to process precisely. During the opening and closing of the hatch, they are prone to jamming with the guide wheels.

[0005] This application is made in view of the aforementioned technical deficiencies.

[0006] It should be noted that the above background information is only used to assist in understanding the inventive concept and technical solution of this application, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0007] The purpose of this application is to provide a hinged, inwardly and upwardly opening aircraft door guide structure to overcome or mitigate at least one of the known technical defects.

[0008] The technical solution of this application is:

[0009] A hinged guide structure for an inwardly and upwardly opening aircraft cabin door includes two guide mating components and a linear guide groove.

[0010] Two linear guide grooves are formed or fixed on the machine body;

[0011] Two guide engagement components are located on both sides of the hatch, at the far end of the hinge;

[0012] Each guide assembly includes a fixed cam, an arc-shaped guide groove roller, a rocker arm, and a straight guide groove roller. The fixed cam is connected to the hatch and has an arc-shaped limiting groove and a mounting shaft, with the mounting shaft located at the center of the arc-shaped limiting groove. One end of the rocker arm is sleeved on the mounting shaft, and the other end is connected to the arc-shaped guide groove roller and the straight guide groove roller. The arc-shaped guide groove roller is engaged in the arc-shaped limiting groove, and the straight guide groove roller is engaged in the straight guide groove.

[0013] When the hatch closes outward and downward, it drives the fixed cam to move, causing the straight guide groove roller to roll downward along the straight guide groove and the arc guide groove roller to roll downward along the arc limit groove. After the arc guide groove roller passes the installation shaft trajectory line and the maximum distance position of the straight guide groove, the arc guide groove roller rolls upward along the arc limit groove. When the hatch reaches the closed position, the straight guide groove roller reaches the bottom of the straight guide groove and the arc guide groove roller reaches the top of the arc limit groove.

[0014] When the hatch opens inward and upward, it drives the fixed cam to move, causing the straight guide groove roller to roll upward along the straight guide groove and the arc guide groove roller to roll downward along the arc limit groove. After the arc guide groove roller passes the installation shaft trajectory line and the maximum distance position of the straight guide groove, the arc guide groove roller rolls upward along the arc limit groove. When the hatch reaches the open position, the straight guide groove roller reaches the uppermost end of the straight guide groove and the arc guide groove roller reaches the uppermost end of the arc limit groove.

[0015] Optionally, in the aforementioned hinged inward and upward opening aircraft door guide structure, two actuators are provided between the fuselage and the door. These two actuators are used to drive the door to open inward and upward and to close outward and downward.

[0016] Optionally, in the aforementioned hinged inward and upward opening aircraft door guide structure, each guide assembly has two linear guide groove rollers.

[0017] This application has at least the following beneficial technical effects:

[0018] This invention provides a hinged, inward-opening, upward-opening aircraft door guide structure. During the opening and closing of the door, a guide assembly and a linear guide groove located at the distal end of the hinge provide guidance, preventing problems such as shaking and inaccurate movement during door opening and closing. The structure is simple, does not significantly increase the overall weight of the aircraft, and can limit the opening and closing of the door to prevent it from exceeding limits. Furthermore, the linear guide groove on the fuselage replaces the arc-shaped guide groove, resulting in better manufacturability and preventing jamming between the door and rollers during opening and closing. In addition, during the opening and closing of the door, the design of the mounting axis trajectory allows the arc-shaped guide groove roller to reciprocate within the arc-shaped limiting groove, making full use of structural space and avoiding a significant increase in the overall weight of the aircraft. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the hinged connection guide structure for opening the aircraft cabin door inward and upward, provided in an embodiment of this application.

[0020] Figure 2 This is an assembly diagram of the hinged connection guide structure for opening the aircraft cabin door inward and upward, provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the fixed cam provided in the embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the hatch being closed according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the hinge connection guiding structure for opening the aircraft cabin door inward and upward when the cabin door is closed, provided in the embodiments of this application;

[0024] Figure 6 This is a schematic diagram of the hatch opening and closing process provided in the embodiments of this application;

[0025] Figure 7 This is a schematic diagram of the hinged guide structure for opening the aircraft cabin door inward and upward during the opening and closing process provided in the embodiments of this application;

[0026] Figure 8 This is a schematic diagram of the hatch opening provided in an embodiment of this application;

[0027] Figure 9 This is a schematic diagram of the hinge connection guiding structure for opening the aircraft cabin door inward and upward when the cabin door is opened, as provided in the embodiments of this application;

[0028] in:

[0029] 1-Aircraft body; 2-Hatch door; 3-Actuator; 4-Guide fitting assembly; 5-Linear guide groove;

[0030] 41-Fixed cam; 42-Arc-shaped guide groove roller; 43-Rock arm; 44-Linear guide groove roller;

[0031] 411 - Arc-shaped limiting groove; 412 - Mounting shaft.

[0032] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0033] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some 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 related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0034] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0035] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral 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; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0036] The following is in conjunction with the appendix Figures 1 to 9 This application will be described in further detail.

[0037] A hinged, inwardly and upwardly opening aircraft door guide structure includes two guide mating components 4 and a linear guide groove 5, such as... Figures 1-2 As shown.

[0038] Two linear guide grooves 5 are formed or fixed on the body 1.

[0039] Two guide engagement components 4 are set on both sides of the hatch 2, located at the far end of the hinge. Two actuators 3 are set between the fuselage 1 and the hatch 2, which drive the hatch 2 to open inward and upward and close outward and downward.

[0040] Each guide assembly 4 includes a fixed cam 41, an arc-shaped guide groove roller 42, a rocker arm 43, and a straight guide groove roller 44. The fixed cam 41 is connected to the hatch 2 and has an arc-shaped limiting groove 411 and a mounting shaft 412. The mounting shaft 412 is located at the center of the arc-shaped limiting groove 411. Figure 3 As shown; one end of the rocker arm 43 is sleeved on the mounting shaft 412, and the other end is connected to the arc-shaped guide groove roller 42 and the straight guide groove roller 44; the arc-shaped guide groove roller 42 is locked in the arc-shaped limiting groove 411; the straight guide groove roller 44 is locked in the straight guide groove 5, and there can be two straight guide groove rollers 44.

[0041] When the piston rods of the two actuators 3 extend, driving the hatch 2 to close outward and downward, they drive the fixed cam 41 to move, causing the linear guide groove roller 44 to roll downward along the linear guide groove 5, and the arc-shaped guide groove roller 42 to roll downward along the arc-shaped limiting groove 411. Figure 7 As shown, after the arc-shaped guide groove roller 42 passes the trajectory line of the mounting shaft 412 and the maximum distance position of the straight guide groove 5, the arc-shaped guide groove roller 42 rolls upward along the arc-shaped limiting groove 411, as... Figures 6-7 As shown, when the hatch 2 reaches the closed position, the linear guide groove roller 44 reaches the lowest end of the linear guide groove 5, and the arc-shaped guide groove roller 42 reaches the highest end of the arc-shaped limiting groove 411. This restricts the hatch 2 from continuing to rotate outward and downward, preventing it from closing beyond its limit. Figures 4-5 As shown.

[0042] When the piston rods of the two actuators 3 retract, driving the hatch 2 to open inward and upward, they drive the fixed cam 41 to move, causing the linear guide groove roller 44 to roll upward along the linear guide groove 5, and the arc-shaped guide groove roller 42 to roll downward along the arc-shaped limiting groove 411. Figure 7 As shown, after the arc-shaped guide groove roller 42 passes the trajectory line of the mounting shaft 412 and the maximum distance position of the straight guide groove 5, the arc-shaped guide groove roller 42 rolls upward along the arc-shaped limiting groove 411, as... Figures 6-7 As shown, when the hatch 2 reaches the open position, the straight guide groove roller 44 reaches the uppermost end of the straight guide groove 5, and the arc-shaped guide groove roller 42 reaches the uppermost end of the arc-shaped limiting groove 411. This restricts the hatch 2 from continuing to rotate inward and upward, preventing it from opening beyond its limit. Figures 8-9 As shown.

[0043] The hinged inward and upward opening aircraft door guide structure disclosed in the above embodiments uses the guide engagement component 4 and the linear guide groove 5 set at the far end of the hinge for guidance during the opening and closing of the door 2. This avoids problems such as shaking and inaccurate movement position during the opening and closing of the door 2. The structure is simple and does not significantly increase the overall weight of the aircraft. It can also limit the opening and closing of the door 2 to prevent it from exceeding the limit. In addition, the linear guide groove 5 set on the fuselage replaces the arc-shaped guide groove, which has good manufacturability and can avoid jamming between the door 2 and the roller during the opening and closing of the door 2. Furthermore, during the opening and closing of the door 2, the design of the trajectory line of the mounting shaft 412 allows the arc-shaped guide groove roller 42 to reciprocate in the arc-shaped limit groove 411, which can make full use of the structural space and avoid significantly increasing the overall weight of the aircraft.

[0044] The technical solution of this 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 this application is obviously not limited to these specific embodiments. Without departing from the principles of this 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 all fall within the scope of protection of this application.

Claims

1. A hinged guide structure for an inwardly and upwardly opening aircraft cabin door, characterized in that, Includes two guide mating components (4) and a linear guide groove (5); Two linear guide grooves (5) are formed or fixed on the body (1); Two guide engagement components (4) are located on both sides of the hatch (2), at the far end of the hinge; Each guide assembly (4) includes a fixed cam (41), an arc-shaped guide groove roller (42), a rocker arm (43), and a straight guide groove roller (44). The fixed cam (41) is connected to the hatch (2) and has an arc-shaped limiting groove (411) and a mounting shaft (412). The mounting shaft (412) is located at the center of the arc-shaped limiting groove (411). One end of the rocker arm (43) is sleeved on the mounting shaft (412), and the other end is connected to the arc-shaped guide groove roller (42) and the straight guide groove roller (44). The arc-shaped guide groove roller (42) is locked in the arc-shaped limiting groove (411). The straight guide groove roller (44) is locked in the straight guide groove (5). When the hatch (2) closes outward and downward, it drives the fixed cam (41) to move, causing the straight guide groove roller (44) to roll downward along the straight guide groove (5) and the arc guide groove roller (42) to roll downward along the arc limit groove (411). After the arc guide groove roller (42) passes the maximum distance position between the trajectory line of the mounting shaft (412) and the straight guide groove (5), the arc guide groove roller (42) rolls upward along the arc limit groove (411). When the hatch (2) reaches the closed position, the straight guide groove roller (44) reaches the bottom of the straight guide groove (5) and the arc guide groove roller (42) reaches the top of the arc limit groove (411). When the hatch (2) opens inward and upward, it drives the fixed cam (41) to move, causing the straight guide groove roller (44) to roll upward along the straight guide groove (5) and the arc guide groove roller (42) to roll downward along the arc limit groove (411). After the arc guide groove roller (42) passes the maximum distance position between the trajectory line of the mounting shaft (412) and the straight guide groove (5), the arc guide groove roller (42) rolls upward along the arc limit groove (411). When the hatch (2) reaches the open position, the straight guide groove roller (44) reaches the uppermost end of the straight guide groove (5) and the arc guide groove roller (42) reaches the uppermost end of the arc limit groove (411).

2. The hinged connection guide structure for opening aircraft cabin doors inward and upward as described in claim 1, characterized in that, Two actuators (3) are installed between the fuselage (1) and the hatch (2). These two actuators (3) are used to drive the hatch (2) to open inward and upward and to close outward and downward.

3. The hinged connection guide structure for opening aircraft cabin doors inward and upward according to claim 1, characterized in that, In each guide assembly (4), there are two linear guide groove rollers (44).

Images