Multi-functional air drop hatch and control method thereof

Abstract

The application belongs to the field of aircraft general design, and particularly relates to a multifunctional air-drop cabin door and a control method thereof. The multifunctional air-drop cabin door comprises: a cabin door arranged on the rear fuselage of an airplane, and having a predetermined inclination angle with a horizontal plane in a closed state; and a cabin door opening module for controlling the opening of the cabin door, the cabin door opening module comprising a folding control module, a flat opening control module and a double-leaf control module. The folding control module and the flat opening control module are simultaneously arranged on the cabin door, or the folding control module and the double-leaf control module are simultaneously arranged on the cabin door. The application has the characteristic of various door opening forms, and can be widely applied to the cabin door of an air-drop aircraft or other application scenarios requiring 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 and a control method thereof. BACKGROUND

[0002] Generally, a hatch is arranged on an aircraft for 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 for goods air-drop or personnel parachute landing. A conventional air-drop hatch can only be opened in a certain designed specific opening mode, and the use form is single, and the opening 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. SUMMARY

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

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

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

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

[0008] a hatch opening module, the hatch opening module is used for controlling opening of the hatch, and the hatch opening module comprises 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 plates, the hatch door plate comprises a door plate body and a door plate rotating shaft arranged at both ends of the door plate body;

[0013] a folding connecting piece, a clamping groove is arranged in the middle of the folding connecting piece, and through holes are formed at both ends of the folding connecting piece, and the through holes at both ends of the folding connecting piece are respectively hinged to the door plate rotating shafts of two adjacent hatch door plates;

[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 folding driving mechanisms, one end of the pair of folding driving mechanisms is connected with the carrier, the other end of the pair of folding driving mechanisms is connected with the door frame, and the pair of folding driving mechanisms are used for controlling the door frame to rotate around the folding rotation shaft to drive the door panels to be symmetrically opened.

[0028] The second aspect of the present application provides a multifunctional air drop hatch control method based on the multifunctional air drop hatch.

[0029] When the folding control module and the flat opening control module are simultaneously installed on the hatch:

[0030] When the hatch is folded open, the driving block of the folding driving mechanism moves in the groove on the side of the door frame close to the door panel, drives the folding connecting piece fixedly connected thereto to move, and under the action of the movement, the door panel rotation shaft at the end of the door panel rotates in the through hole at the two ends of the folding connecting piece, drives the door panels on both sides to rotate around the door panel rotation shaft, until the folding driving mechanism moves together, the adjacent door panels are close to each other, and the hatch is folded open.

[0031] When the hatch is opened as a whole, the flat opening driving mechanism controls the door frame to rotate around the flat opening rotation shaft to drive the door panels to be opened as a whole.

[0032] When the folding control module and the pair of opening control module are simultaneously installed on the hatch:

[0033] When the hatch is folded open, the driving block of the folding driving mechanism moves in the groove on the side of the door frame close to the door panel, drives the folding connecting piece fixedly connected thereto to move, and under the action of the movement, the door panel rotation shaft at the end of the door panel rotates in the through hole at the two ends of the folding connecting piece, drives the door panels on both sides to rotate around the door panel rotation shaft, until the folding driving mechanism moves together, the adjacent door panels are close to each other, and the hatch is folded open.

[0034] When the hatch is symmetrically opened, the pair of opening driving mechanism controls the door frame to rotate around the pair of opening rotation shaft to drive the two rows of door panels to be symmetrically opened.

[0035] The present application has at least the following beneficial technical effects:

[0036] The multifunctional air drop hatch of the present application can realize three opening modes of folding opening, whole opening and symmetric opening of the hatch, and the folding control module and the flat opening control module or the folding control module and the pair of opening control module can be simultaneously installed on the hatch to meet different use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is an assembly schematic view of the multifunctional air drop hatch of an embodiment of the present application;

[0038] Figure 2is a schematic view of a multi-functional air-drop hatch in a folded open state according to an embodiment of the present application;

[0039] Figure 3 is a schematic view of a multi-functional air-drop hatch in a whole open state according to an embodiment of the present application;

[0040] Figure 4 is a schematic view of a multi-functional air-drop hatch in a symmetrical open state according to an embodiment of the present application;

[0041] Figure 5 is a schematic view of a multi-functional air-drop hatch according to an embodiment of the present application;

[0042] Figure 6 is a schematic view of a multi-functional air-drop hatch according to another embodiment of the present application;

[0043] Figure 7 is a schematic view of a folding control module according to an embodiment of the present application;

[0044] Figure 8 is a schematic view of a folding connecting piece and a folding driving mechanism according to an embodiment of the present application;

[0045] Figure 9 is a schematic view of a folding driving mechanism, a hatch frame and a split pivot according to an embodiment of the present application.

[0046] Wherein:

[0047] 1-hatch panel; 11-pivot of the panel; 12-main body of the panel; 2-hatch frame; 3-folding connecting piece; 4-folding driving mechanism; 41-buckle; 42-short connecting rod; 43-driving block; 5-flat pivot; 6-split pivot. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the embodiments of the present application will be described in more detail below with reference to 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 some of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference 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 skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing 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 limiting the scope of protection of the present application.

[0050] The accompanying drawings are used to better illustrate the present application. Figures 1 to 9 The present application is further described in detail.

[0051] The first aspect of 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 aircraft, and has a predetermined inclination angle with the horizontal plane in the closed state; the hatch opening module is used to control 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; referring to Figure 4 , the double opening control module can control the symmetrical opening of the hatch. Among them, the folding control module and the flat opening control module are installed on the hatch at the same time; or, the folding control module and the double opening control module are installed on the hatch at the same time.

[0052] Specifically, as 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] In the preferred embodiment of the present application, the door panels 1 are arranged in two rows along the spanwise 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.

[0057] Based on the above multifunctional air-drop door, the second aspect of the present application provides a multifunctional air-drop door control method, comprising:

[0058] When the folding control module and the double-leaf control module are installed on the door at the same time:

[0059] 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 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, and the door is folded open;

[0060] 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;

[0061] When the folding control module and the double-leaf control module are installed on the door at the same time:

[0062] 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 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, and the door is folded open;

[0063] 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.

[0064] The multifunctional air-drop door and its control method of the present application provide 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.

[0065] The multifunctional air drop hatch door and the control method thereof can realize three opening modes of folding opening, whole opening and symmetrical opening of the hatch door, and meet different use scenarios. The application has the characteristics of various opening forms, and can be widely applied to hatch doors of air drop aircrafts or other application scenarios requiring multifunctional opening.

[0066] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed in the present application can be easily thought of by those skilled in the art, and should be covered within 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 air drop hatch characterized by, The utility model relates to a cabin door of a plane, and belongs to the field of aviation. The cabin door is arranged on the rear fuselage of the plane and has a predetermined inclination angle with the horizontal plane in the closed state. The cabin door opening module is used for controlling the opening of the cabin door, and comprises a folding control module, a flat opening control module and a split control module. The folding control module and the flat opening control module are simultaneously arranged on the cabin door. The folding control module and the split control module are simultaneously arranged on the cabin door. The cabin door comprises: The cabin door panel (1) comprises a plurality of door panel bodies (12) and door panel shafts (11) arranged at both ends of the door panel body (12). The folding connecting piece (3) is provided with a clamping groove in the middle and through holes at both ends. The cabin door frame (2) is located outside the cabin door panel (1). The cabin door frame (2) is provided with 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 split control module. The folding control module comprises: The folding drive mechanism (4) comprises a buckle (41), a short connecting rod (42) and a drive block (43). The drive block (43) is slidably arranged in the sliding groove of the cabin door frame (2). The flat opening control module comprises: The flat opening shaft (5) is arranged in the middle of the carrier plane and at both ends of the cabin door frame (2). The flat opening drive mechanism is connected to the carrier plane at one end and to the cabin door frame (2) at the other end. The split control module comprises:

2. The multi-functional airdrop hatch of claim 1, wherein The split shaft (6) is arranged at both ends of the carrier plane and in the middle of the cabin door frame (2).

3. The multi-functional airdrop hatch of claim 2, wherein, The split drive mechanism is connected to the carrier plane at one end and to the cabin door frame (2) at the other end. The door panel body (12) is provided with a reinforcing rib. The cabin door frame (2) comprises two door frame parts arranged in parallel. The sliding groove is arranged on the inner side of the door frame part. The groove is arranged on the outer side of the door frame part. The through hole is arranged at both ends of the door frame part.

4. The multi-functional airdrop hatch of claim 3, wherein, The folding driving mechanism (4) is arranged at intervals, and the folding connecting piece (3) without the folding driving mechanism (4) moves away from the cabin door closing plane during folding.

5. The multi-functional airdrop door according to claim 4, wherein, The flat pivot (5) is arranged at any one end of the cabin door frame (2).

6. The multi-functional airdrop hatch of claim 5, wherein, The cabin door panels (1) are arranged in two rows in parallel, and a plurality of cabin door panels (1) are arranged in each row.

7. A method of multifunctional airdrop hatch control based on the multifunctional airdrop hatch of claim 6, characterized in that, Comprise: When the folding control module and the flat opening control module are simultaneously installed on the cabin door: When the cabin door is folded and opened, the driving block (43) of the folding driving mechanism (4) moves in the groove on the side of the cabin door frame (2) close to the cabin door panel (1), drives the folding connecting piece (3) fixed thereto to move, and under the action of movement, the door panel pivot (11) at the end of the cabin door panel (1) rotates in the through hole at the two ends of the folding connecting piece (3), drives the cabin door panels (1) on both sides to rotate around the door panel pivot (11), until the folding driving mechanism (4) moves together, the adjacent cabin door panels (1) are close, and the cabin door is folded and opened; When the cabin door is opened as a whole, the flat opening driving mechanism controls the cabin door frame (2) to rotate around the flat pivot (5), and drives the cabin door panels (1) to open as a whole; When the folding control module and the flat opening control module are simultaneously installed on the cabin door: When the cabin door is folded and opened, the driving block (43) of the folding driving mechanism (4) moves in the groove on the side of the cabin door frame (2) close to the cabin door panel (1), drives the folding connecting piece (3) fixed thereto to move, and under the action of movement, the door panel pivot (11) at the end of the cabin door panel (1) rotates in the through hole at the two ends of the folding connecting piece (3), drives the cabin door panels (1) on both sides to rotate around the door panel pivot (11), until the folding driving mechanism (4) moves together, the adjacent cabin door panels (1) are close, and the cabin door is folded and opened; When the cabin door is symmetrically opened, the flat opening driving mechanism controls the cabin door frame (2) to rotate around the flat pivot (5), and drives the cabin door panels (1) to open as a whole.

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