Multifunctional air-drop cabin door

Abstract

The utility model belongs to the field of overall design of aircrafts, and particularly relates to a multifunctional air-drop cabin door. The multifunctional air-drop cabin door comprises a cabin door body, the cabin door body is arranged on a rear fuselage of an aircraft, and a preset inclination angle is formed between the cabin door body and the horizontal plane when the cabin door body is in a closed state; and the cabin door opening module is used for controlling the cabin door to be opened, and the cabin door opening module comprises a folding control module, a flat opening control module and a side-by-side opening control module. Wherein the folding control module and the flat opening control module are mounted on the cabin door at the same time; or, the folding control module and the split control module are installed on the cabin door at the same time. The multifunctional door opening device has the characteristic of various door opening forms, and can be widely applied to cabin doors of air throwing aircrafts or other application scenes needing multifunctional door opening.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of aircraft overall design, and particularly relates to a multifunctional air-drop hatch. BACKGROUND

[0002] Generally, a hatch is arranged on an aircraft to allow goods or personnel to enter or exit the aircraft. For an aircraft with an air-drop function, the hatch can be opened in the air to allow goods to be air-dropped or personnel to be parachuted. A conventional air-drop hatch can only be opened in a certain designed opening mode, and the use form is single. After being opened, the hatch has a large influence on the aerodynamic characteristics of the aircraft.

[0003] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a multifunctional air-drop hatch to solve at least one problem existing in the prior art.

[0005] The technical solution of the present application is:

[0006] The present application provides a multifunctional air-drop hatch, comprising:

[0007] a hatch arranged on the rear fuselage of an aircraft, and having a predetermined inclination angle with a horizontal plane in a closed state;

[0008] a hatch opening module for controlling opening of the hatch, the hatch opening module comprising a folding control module, a flat opening control module, and a double opening control module, wherein

[0009] the folding control module and the flat opening control module are simultaneously installed on the hatch; or

[0010] the folding control module and the double opening control module are simultaneously installed on the hatch.

[0011] In at least one embodiment of the present application, the hatch comprises:

[0012] a plurality of hatch door panels, each comprising a door panel body and a door panel pivot shaft arranged at both ends of the door panel body;

[0013] a folding connecting piece, the middle part of the folding connecting piece is provided with a clamping groove, and both ends of the folding connecting piece are provided with through holes, and the through holes at both ends of the folding connecting piece are respectively hinged to the door panel pivot shafts of two adjacent door panels;

[0014] A door frame is located outside the door panel, and a sliding groove for mounting the folding control module, a through hole for mounting the flat opening control module, and a groove for mounting the opposite opening control module are formed in the door frame.

[0015] In at least one embodiment of the present application, reinforcing ribs are arranged on the door panel body.

[0016] In at least one embodiment of the present application, the door frame comprises two door frame parts arranged in parallel, the inner side of each of the two door frame parts is provided with the sliding groove, and the outer side of each of the two door frame parts is provided with the groove, and the through hole is formed at the two ends of the two door frame parts.

[0017] In at least one embodiment of the present application, the folding control module comprises:

[0018] A folding driving mechanism comprises a buckle, a short connecting rod, and a driving block, the buckle is fixedly installed in the clamping groove of the folding connecting piece, one end of the driving block is connected with the buckle through the short connecting rod, and the other end of the driving block is slidingly installed in the sliding groove of the door frame, and the driving block can slide along the sliding groove of the door frame under the driving of the motor.

[0019] In at least one embodiment of the present application, the folding driving mechanisms are arranged at intervals, and the folding connecting pieces without the folding driving mechanisms move away from the plane of the closed state of the door during the folding process.

[0020] In at least one embodiment of the present application, the flat opening control module comprises:

[0021] A flat opening rotating shaft is installed at the middle part of the carrier, and both ends of the flat opening rotating shaft are installed in the through hole of the door frame;

[0022] A flat opening driving mechanism is connected with the carrier at one end and connected with the door frame at the other end, used for controlling the door frame to rotate around the flat opening rotating shaft and driving the whole door panel to open.

[0023] In at least one embodiment of the present application, the flat opening rotating shaft is arranged at any one end of the door frame.

[0024] In at least one embodiment of the present application, the door panels are arranged in two rows in parallel, and a plurality of door panels are arranged in each row.

[0025] In at least one embodiment of the present application, the opposite opening control module comprises:

[0026] An opposite opening rotating shaft is installed at both ends of the carrier, and the middle part of the opposite opening rotating shaft is nested in the groove of the door frame.

[0027] A pair of opening driving mechanisms, one end of which is connected with the carrier and the other end of which is connected with the door frame, are used to control the rotation of the door frame around the pair of opening rotating shafts to drive the door panels to open symmetrically.

[0028] The utility model has at least the following beneficial technical effects:

[0029] The multifunctional air drop door of the application can realize three opening modes of folding opening, whole opening and symmetric opening, and can be equipped with a folding control module and a flat opening control module or a folding control module and a pair of opening control module at the same time, so as to meet different use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is an assembly schematic view of the multifunctional air drop door of one embodiment of the application;

[0031] Figure 2 is a folding opening state schematic view of the multifunctional air drop door of one embodiment of the application;

[0032] Figure 3 is a whole opening state schematic view of the multifunctional air drop door of one embodiment of the application;

[0033] Figure 4 is a symmetric opening state schematic view of the multifunctional air drop door of one embodiment of the application;

[0034] Figure 5 is a schematic view of the multifunctional air drop door of one embodiment of the application;

[0035] Figure 6 is a schematic view of the multifunctional air drop door of another embodiment of the application;

[0036] Figure 7 is a folding control module schematic view of one embodiment of the application;

[0037] Figure 8 is a folding connecting piece and folding driving mechanism assembly schematic view of one embodiment of the application;

[0038] Figure 9 is a folding driving mechanism, door frame and pair of opening rotating shaft assembly schematic view of one embodiment of the application.

[0039] Wherein:

[0040] 1 - door panel; 11 - door panel rotating shaft; 12 - door panel main body; 2 - door frame; 3 - folding connecting piece; 4 - folding driving mechanism; 41 - buckle; 42 - short connecting rod; 43 - driving block; 5 - flat opening rotating shaft; 6 - pair of opening rotating shaft. DETAILED DESCRIPTION

[0041] For the purpose of making the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described in more detail below in combination with the drawings of the embodiments of the present application. In the drawings, the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the scope of protection of the present application.

[0043] The drawings will be described below in combination with the Figures 1 to 9 The present application will be described in further detail.

[0044] The present application provides a multifunctional air drop hatch, which comprises a hatch and a hatch opening module. As shown in Figure 1 , the hatch is arranged on the rear fuselage of an airplane, and has a predetermined inclination angle between the hatch and the horizontal plane in the closed state; the hatch opening module is used for controlling the opening of the hatch, and comprises a folding control module, a flat opening control module and a double opening control module, wherein, referring to Figure 2 , the folding control module can control the folding opening of the hatch; referring to Figure 3 , the flat opening control module can control the overall opening of the hatch; and referring to Figure 4 , the double opening control module can control the symmetrical opening of the hatch. The folding control module and the flat opening control module are simultaneously installed on the hatch; or the folding control module and the double opening control module are simultaneously installed on the hatch.

[0045] Specifically, as shown in Figures 5-9As shown, the cabin door comprises: a cabin door panel 1, a folding connecting piece 3, and a cabin door frame 2, the cabin door panel 1 comprises a plurality of, the cabin door panel 1 comprises a door panel body 12 and a door panel shaft 11 arranged at both ends of the door panel body 12, in the embodiment, the door panel body 12 preferably adopts a rectangular structure, and two cross-arranged reinforcing ribs are mounted on the door panel body 12; a clamping groove is arranged at the middle part of the folding connecting piece 3, the clamping groove is used for cooperating with a buckle 41 to be connected, a through hole is arranged at both ends of the folding connecting piece 3, and the through holes at both ends of the folding connecting piece 3 are respectively hinged with the door panel shafts 11 of the adjacent two cabin door panels 1, so that the plurality of cabin door panels 1 are connected into an integrated cabin door; the cabin door frame 2 is located outside the cabin door panel 1, a sliding groove for mounting a folding control module, a through hole for mounting a flat opening control module, and a groove for mounting a double opening control module are arranged on the cabin door frame 2. The cabin door frame 2 comprises two door frame parts arranged in parallel, one side of the two door frame parts close to the cabin door panel 1 is an inner side, and the side away from the cabin door panel 1 is an outer side, the inner sides of the two door frame parts are respectively provided with the sliding grooves, the outer sides of the two door frame parts are respectively provided with circular grooves, and the two ends of the two door frame parts are respectively provided with circular through holes. The sliding groove on the cabin door frame 2 is used for assembling a driving block 43, in the embodiment, the sliding groove preferably adopts a groove structure with a turned edge, the groove of the cabin door frame 2 is used for assembling a double opening shaft 6, and the through hole of the cabin door frame 2 is used for assembling a flat opening shaft 5.

[0046] In the preferred embodiment of the present application, the folding control module comprises a folding driving mechanism 4. The folding driving mechanism 4 comprises a buckle 41, a short connecting rod 42 and a driving block 43, the buckle 41 is fixedly installed in the clamping groove at the middle part of the folding connecting piece 3, one end of the driving block 43 is connected with the buckle 41 through the short connecting rod 42, the other end of the driving block 43 is slidably installed in the sliding groove of the cabin door frame 2, the driving block 43 can slide along the sliding groove of the cabin door frame 2 under the driving of a motor, and the cabin door panel 1 is driven to fold through the movement of the folding driving mechanism 4 in the sliding groove of the cabin door frame 2.

[0047] In the embodiment, the folding driving mechanisms 4 are arranged at intervals, and the folding connecting pieces 3 without the folding driving mechanisms 4 move away from the cabin closing state plane in the folding process.

[0048] In the preferred embodiment of the present application, the flat opening control module comprises a flat opening shaft 5 and a flat opening driving mechanism. The flat opening shaft 5 is installed on the carrier, and both ends of the flat opening shaft 5 are installed in the circular through holes of the cabin door frame 2; one end of the flat opening driving mechanism is connected with the carrier, and the other end is connected with the cabin door frame 2, which is used for controlling the cabin door frame 2 to rotate around the flat opening shaft 5, and driving the cabin door panel 1 to open as a whole; in the embodiment, the flat opening shaft 5 is arranged at any one end of the cabin door frame 2.

[0049] In the preferred embodiment of the present application, the door panels 1 are arranged in two rows along the span direction, and each row is arranged in multiple door panels 1 along the axial direction, and two adjacent door panels 1 are connected together by the folding connecting piece 3. The double-leaf control module comprises a double-leaf rotating shaft 6 and a double-leaf driving mechanism. The two ends of the double-leaf rotating shaft 6 are mounted on the carrier, and the double-leaf rotating shaft 6 is nested in the groove of the door frame 2; one end of the double-leaf driving mechanism is connected with the carrier, and the other end is connected with the door frame 2, which is used to control the rotation of the door frame 2 around the double-leaf rotating shaft 6, and drive the symmetrical opening of the door panels 1.

[0050] The control method of the multifunctional air-drop door of the present application comprises:

[0051] When the folding control module and the double-leaf control module are simultaneously installed on the door:

[0052] When the door is folded open, the driving block 43 of the folding driving mechanism 4 moves in the groove on the side of the door frame 2 close to the door panel 1, drives the folding connecting piece 3 connected thereto to move, and under the action of the movement, the door panel rotating shaft 11 at the end of the door panel 1 rotates in the through hole at the two ends of the folding connecting piece 3, drives the two side door panels 1 to rotate around the door panel rotating shaft 11, until the folding driving mechanism 4 moves together, the adjacent door panels 1 are close to each other, and the door is folded open;

[0053] When the door is opened as a whole, the double-leaf driving mechanism controls the rotation of the door frame 2 around the double-leaf rotating shaft 5, and drives the whole door panel 1 to open;

[0054] When the folding control module and the double-leaf control module are simultaneously installed on the door:

[0055] When the door is folded open, the driving block 43 of the folding driving mechanism 4 moves in the groove on the side of the door frame 2 close to the door panel 1, drives the folding connecting piece 3 connected thereto to move, and under the action of the movement, the door panel rotating shaft 11 at the end of the door panel 1 rotates in the through hole at the two ends of the folding connecting piece 3, drives the two side door panels 1 to rotate around the door panel rotating shaft 11, until the folding driving mechanism 4 moves together, the adjacent door panels 1 are close to each other, and the door is folded open;

[0056] When the door is opened symmetrically, the double-leaf driving mechanism controls the rotation of the door frame 2 around the double-leaf rotating shaft 6, and drives the two rows of door panels 1 to open symmetrically.

[0057] The multifunctional air-drop door of the present application provides three opening modes of folding opening, whole opening and symmetrical opening, wherein the folding opening and the whole opening mode can be integrated on the door at the same time, and the folding opening and the symmetrical opening mode can also be integrated on the door at the same time. The opening mode does not interfere with each other, and is suitable for multiple application scenarios, and has little influence on the aerodynamic characteristics of the aircraft after the door is opened.

[0058] The multifunctional air drop hatch door of the present application can realize three opening modes of folding opening, integral opening and symmetrical opening, and meets different use scenarios. The present application has the characteristics of various opening modes, and can be widely applied to the hatch door of an aerial delivery aircraft or other application scenarios requiring multifunctional opening.

[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multi-functional airdrop hatch, characterized in that, include: A hatch, which is located on the rear fuselage of the aircraft, has a predetermined angle of inclination with respect to the horizontal plane when closed; A hatch opening module, used to control the opening of the hatch, includes a folding control module, a side-opening control module, and a double-opening control module. The hatch is equipped with both the folding control module and the swing-out control module; or... The hatch is equipped with both the folding control module and the split-opening control module.

2. The multi-functional airdrop hatch according to claim 1, characterized in that, The hatch includes: The hatch door panel (1) includes multiple hatch door panels (1), each hatch door panel (1) includes a door panel body (12) and door panel pivots (11) disposed at both ends of the door panel body (12); Folding connector (3), the folding connector (3) has a slot in the middle and through holes at both ends. The through holes at both ends of the folding connector (3) are respectively hinged to the door panel pivot (11) of the two adjacent door panels (1). The hatch frame (2) is located outside the hatch panel (1). The hatch frame (2) has a sliding groove for installing the folding control module, a through hole for installing the swing control module, and a groove for installing the split control module.

3. The multi-functional airdrop hatch according to claim 2, characterized in that, The door panel body (12) is provided with reinforcing ribs.

4. The multi-functional airdrop hatch according to claim 3, characterized in that, The hatch frame (2) includes two door frame portions arranged in parallel. The inner side of each of the two door frame portions is provided with the sliding groove, and the outer side is provided with the groove. The two ends of each of the two door frame portions are provided with the through hole.

5. The multi-functional airdrop hatch according to claim 4, characterized in that, The folding control module includes: The folding drive mechanism (4) includes a buckle (41), a short connecting rod (42), and a drive block (43). The buckle (41) is fixedly installed in the slot of the folding connector (3). One end of the drive block (43) is connected to the buckle (41) through the short connecting rod (42), and the other end is slidably installed in the slide groove of the hatch frame (2). The drive block (43) can slide along the slide groove of the hatch frame (2) under the drive of the motor.

6. The multi-functional airdrop hatch according to claim 5, characterized in that, The folding drive mechanism (4) is spaced apart, and the folding connector (3) without the folding drive mechanism (4) moves away from the plane of the closed state of the hatch during the folding process.

7. The multi-functional airdrop hatch according to claim 6, characterized in that, The swing control module includes: A swing-out pivot (5) is installed in the middle of the aircraft and both ends of the swing-out pivot (5) are installed in the through holes of the door frame (2). A swing-opening drive mechanism, one end of which is connected to the carrier aircraft and the other end of which is connected to the door frame (2), is used to control the door frame (2) to rotate around the swing-opening pivot (5) and drive the door panel (1) to open as a whole.

8. The multi-functional airdrop hatch according to claim 7, characterized in that, The swing hinge (5) is located at any end of the door frame (2).

9. The multi-functional airdrop hatch according to claim 6, characterized in that, The hatch panels (1) are arranged in two rows side by side, with multiple hatch panels (1) arranged in each row.

10. The multi-functional airdrop hatch according to claim 9, characterized in that, The split control module includes: A split-spindle shaft (6) is provided, with both ends of the split-spindle shaft (6) mounted on the carrier aircraft, and the middle part of the split-spindle shaft (6) nested in the groove of the door frame (2); The split-opening drive mechanism has one end connected to the carrier aircraft and the other end connected to the door frame (2), which is used to control the door frame (2) to rotate around the split-opening pivot (6) and drive the door panel (1) to open symmetrically.

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