Water landing device and autorotating rotorcraft

Abstract

The application provides a water landing device and a autorotating rotorcraft. The water landing device comprises an autorotating rotorcraft body, a bottom skin, a pre-split layer, an airbag, a hatch and a compressed gas cabin. The autorotating rotorcraft body is provided with a short wing. The bottom skin is arranged on the side wall of the short wing. The pre-split layer is connected to the bottom skin and has a pre-split crack. The airbag is connected to the bottom skin. The hatch is connected to the bottom skin and covers the airbag. The compressed gas cabin is installed on the hatch and is connected to the internal space of the hatch through a gas pipe. When the autorotating rotorcraft body is in a water landing state, the pre-split crack can be split by the impact force when the autorotating rotorcraft body is in the water landing state, so that the pre-split layer is in an open state. The compressed gas cabin outputs gas to the airbag through the gas pipe. The airbag expands under the action of the gas and is exposed to the pre-split layer in the open state, so as to realize water emergency landing, avoid the autorotating rotorcraft from descending too fast, and improve the safety of the water landing device.

Description

Technical Field

[0001] This utility model relates to the technical field of water landing devices, and more particularly to a water landing device and an autogyro. Background Technology

[0002] With the development of technology, autogyros have been applied in flight sports, national defense, power, agriculture, public safety, emergency rescue, tourism, and environmental protection. Autogyros utilize the relative airflow during forward flight to rotate their rotors and generate lift. However, current autogyros cannot perform forced landings on water, and they are prone to plunging into the water due to excessive descent, resulting in relatively poor safety. Summary of the Invention

[0003] The purpose of this invention is to provide a water landing device and an autogyro. The autogyro body has a short wing; a bottom skin is provided on the side wall of the short wing; a pre-cracked layer is connected to the bottom skin and has pre-cracks; an airbag is connected to the bottom skin and is located on one side of the pre-cracked layer; the opening of the airbag faces the pre-cracked layer; a canopy is connected to the bottom skin and covers the airbag; a compressed gas chamber is installed on the canopy and is connected to the internal space of the canopy through a gas supply pipe; when the autogyro body is in a water landing state, the pre-cracks can be broken by the impact force when the autogyro body is in a water landing state, so that the pre-cracked layer is in an open state; the compressed gas chamber outputs gas to the airbag through the gas supply pipe, the airbag expands under the action of the gas and is exposed to the pre-cracked layer in an open state, so as to realize an emergency water landing, avoid the autogyro descending too fast, and improve the safety of the water landing device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a water landing device, comprising: The main body of the autogyro is equipped with short wings; The bottom skin is provided on the side wall of the short wing; A pre-cracked layer, connected to the bottom skin, the pre-cracked layer having pre-cracks; An airbag is attached to the bottom skin and is located on one side of the pre-cracked layer; the opening of the airbag faces the pre-cracked layer. A hatch, connected to the bottom skin, and covering the airbag; A compressed gas chamber is installed on the hatch cover and connected to the internal space of the hatch cover via a gas supply pipe; When the main body of the autogyro is in a water-based emergency landing state, the pre-cracked crack can be broken open by the impact force when the main body of the autogyro is in a water-based emergency landing state, so that the pre-cracked layer is in an open state; the compressed gas chamber outputs gas to the airbag through the gas supply pipe, and the airbag expands under the action of the gas and is exposed to the pre-cracked layer in the open state.

[0005] Optionally, the pre-crack is located in the middle of the pre-crack layer and is provided on the inner or outer sidewall of the pre-crack layer; The pre-cracks extend outwards from the center of the pre-cracked layer in a crisscross pattern.

[0006] Optionally, the pre-crack is an etching groove created by a laser and is recessed into the inner or outer wall of the pre-crack layer.

[0007] Optionally, when the main body of the autogyro is in a forced landing state on water, the pre-cracked crack receives the impact force and cracks, causing the pre-cracked layer to crack in an X shape.

[0008] Optionally, the airbag includes an airbag body and an airbag connecting part; the airbag connecting part and the airbag body are an integral structure; The airbag connecting part is connected to the bottom skin, and the connection position between the airbag connecting part and the bottom skin is located outside the pre-fracture layer. The airbag body is arranged relative to the pre-fracture layer and is located outside the pre-fracture layer.

[0009] Optionally, the airbag body is arranged in a trapezoidal shape, and the airbag body is provided with a folding arm that folds along the vertical direction and expands under the action of gas.

[0010] Optionally, the compressed gas chamber is detachably connected to the hatch cover; The hatch has a cavity for accommodating the airbag; the airbag, the bottom skin, and the hatch form an inflatable space. The two ends of the gas supply pipe are connected to the compressed gas chamber and the space to be inflated, respectively. The gas output from the compressed gas chamber enters the space to be inflated through the gas supply pipe and inflates the airbag.

[0011] Optionally, the compressed gas chamber is connected to the gas supply pipe via a gas supply valve.

[0012] Optionally, the compressed gas chamber, the gas supply valve, and the gas supply pipe are located on the outside of the hatch; the airbag is located on the inside of the hatch. The gas supply pipes are multiple, and the multiple gas supply pipes are arranged along the outer periphery of the compressed gas chamber.

[0013] To achieve the above objectives, this utility model provides the following technical solution: an autogyro, including the aforementioned water landing device.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention provides a water landing device and an autogyro. The autogyro body has a short wing; a bottom skin is provided on the side wall of the short wing; a pre-cracked layer is connected to the bottom skin and has pre-cracks; an airbag is connected to the bottom skin and is located on one side of the pre-cracked layer; the opening of the airbag faces the pre-cracked layer; a canopy is connected to the bottom skin and covers the airbag; a compressed gas chamber is installed on the canopy and is connected to the internal space of the canopy through a gas supply pipe; when the autogyro body is in a water landing state, the pre-cracks can be broken by the impact force when the autogyro body is in a water landing state, so that the pre-cracked layer is in an open state; the compressed gas chamber outputs gas to the airbag through the gas supply pipe, the airbag expands under the action of the gas and is exposed to the pre-cracked layer in the open state, so as to realize the emergency landing on the water, avoid the autogyro descending too fast, and improve the safety of the water landing device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 A cross-sectional view of a water landing device according to an embodiment of this application is shown.

[0018] Figure 2 A schematic diagram of a water landing device according to an embodiment of this application in an unactivated state is shown.

[0019] Figure 3 A schematic diagram of a water landing device in the open state according to an embodiment of this application is shown.

[0020] Figure 4 A schematic diagram of a water landing device according to an embodiment of this application with the airbag in an undeployed state is shown.

[0021] Attached Figure

[0022] 100. Water landing device; 10. Main body of the autogyro; 11. Stub wing; 20. Bottom skin; 30. Pre-cracked layer; 31. Pre-cracked crack; 40. Airbag; 41. Airbag body; 411. Folding arm; 42. Airbag connection part; 50. Hatch cover; 50a. Receiving cavity; 60. Compressed gas chamber; 61. Gas pipeline; 62. Gas valve. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Please refer to the attached document. Figures 1-4 This application provides a water landing device 100, which is applied to an autogyro and is used to perform an emergency water landing on the autogyro.

[0025] Please refer to the attached document. Figures 1-4 In this embodiment, the water landing device 100 includes a gyroplane body 10, a bottom skin 20, a pre-splitting layer 30, an airbag 40, a canopy 50, and a compressed gas chamber 60. The gyroplane body 10 has a short wing 11; the bottom skin 20 is disposed on the side wall of the short wing 11; the pre-splitting layer 30 is connected to the bottom skin 20 and has pre-splitting cracks 31; the airbag 40 is connected to the bottom skin 20 and is located on one side of the pre-splitting layer 30; the opening of the airbag 40 faces the pre-splitting layer 30; the canopy 50 is connected to the bottom skin 20 and covers the airbag 40; the compressed gas chamber 60... Installed on the hatch 50 and connected to the internal space of the hatch 50 via the air supply pipe 61; when the autogyro body 10 is in a water landing state, the pre-crack 31 can be cracked by the impact force when the autogyro body 10 is in a water landing state, so that the pre-crack layer 30 is in an open state; the compressed gas chamber 60 outputs gas to the gasbag 40 through the air supply pipe 61, the gasbag 40 expands under the action of the gas and is exposed to the pre-crack layer 30 in the open state, so as to realize the water emergency landing, avoid the autogyro descending too fast, and improve the safety of the water landing device 100.

[0026] Please refer to the attached document. Figures 1-4In this embodiment of the application, the main body 10 of the autogyro is provided with a short wing 11; the bottom skin 20 is disposed on the side wall of the short wing 11; the bottom skin 20 is connected to the side wall of the short wing 11 so that the bottom skin 20 is fixed to the side wall of the short wing 11.

[0027] The pre-cracked layer 30 is disposed on the inner side of the bottom skin 20 and is connected to the bottom skin 20 so that the pre-cracked layer 30 can be fixed to the inner side of the bottom skin 20. The pre-cracked layer 30 has a pre-crack 31; the pre-crack 31 facilitates the opening of the pre-cracked layer 30.

[0028] The airbag 40 is connected to the bottom skin 20 and is located on one side of the pre-fracture layer 30; the opening of the airbag 40 faces the pre-fracture layer 30; so that the airbag 40 can pass through the pre-fracture layer 30 when it is opened, and the airbag 40 has the effect of cushioning the landing.

[0029] The hatch 50 is connected to the bottom skin 20 and covers the airbag 40; so that the hatch 50 can protect the airbag 40 and prevent the airbag 40 from rupturing.

[0030] The compressed gas chamber 60 is installed on the canopy 50 and connected to the internal space of the canopy 50 via the gas supply pipe 61, so that the compressed gas chamber 60 can supply gas to the internal space of the canopy 50 via the gas supply pipe 61. When the autogyro body 10 is in a water landing state, the pre-crack 31 can be cracked by the impact force when the autogyro body 10 is in a water landing state, so that the pre-crack layer 30 is in an open state; the compressed gas chamber 60 outputs gas to the gasbag 40 through the gas supply pipe 61, the gasbag 40 expands under the action of the gas and is exposed to the pre-crack layer 30 in the open state, so as to realize the emergency landing on the water, avoid the autogyro descending too fast, and improve the safety of the water landing device 100.

[0031] Please refer to the attached document. Figures 1-4 In this embodiment of the application, the pre-crack 31 is located in the middle of the pre-crack layer 30 and is disposed on the inner or outer sidewall of the pre-crack layer 30; the pre-crack 31 extends outward from the middle of the pre-crack layer 30 in a cross pattern, so that the opening of the pre-crack layer 30 gradually expands from the middle to the periphery, thereby making it easier for the pre-crack 31 to crack.

[0032] Please refer to the attached document. Figures 1-4 In this embodiment, the pre-crack 31 is an etching groove created by a laser and is recessed into the inner or outer sidewall of the pre-crack layer 30 so that the pre-crack 31 can be cracked by impact force, thus avoiding a slow cracking speed.

[0033] Please refer to the attached document. Figures 1-4In this embodiment, when the autogyro main body 10 is in a water landing state, the pre-crack 31 receives the impact force and cracks, causing the pre-crack layer 30 to crack in an X shape, so that the pre-crack layer 30 is in an open state. This allows the compressed gas chamber 60 to output gas to the airbag 40 through the gas supply pipe 61. The airbag 40 expands under the action of the gas and is exposed to the pre-crack layer 30 in the open state, so as to realize the water emergency landing, avoid the autogyro descending too fast, and improve the safety of the water landing device 100.

[0034] Please refer to the attached document. Figures 1-4 In this embodiment, the airbag 40 includes an airbag body 41 and an airbag connecting part 42; the airbag connecting part 42 and the airbag body 41 are an integral structure; the connection strength between the airbag connecting part 42 and the airbag body 41 is improved, and the airbag connecting part 42 and the airbag body 41 are prevented from breaking easily.

[0035] The airbag connecting part 42 is connected to the bottom skin 20 so that the airbag connecting part 42 is fixed to the bottom skin 20, thereby facilitating the connection of the airbag 40 to the bottom skin 20 through the airbag connecting part 42. Specifically, the airbag connecting part 42 is connected to the bottom skin 20 by riveting or gluing. The connection position between the airbag connecting part 42 and the bottom skin 20 is located on the outside of the pre-splitting layer 30. The airbag body 41 is arranged relative to the pre-splitting layer 30 and is located on the outside of the pre-splitting layer 30 so that the airbag body 41 can expand toward the pre-splitting layer 30 after inflation, thereby facilitating the airbag body 41 to pass through the pre-splitting layer 30 to release the airbag 40 and provide buoyancy for the autogyro.

[0036] Please refer to the attached document. Figures 1-4 In this embodiment, the airbag body 41 is arranged in a trapezoidal shape and is provided with a folding support arm 411. The folding support arm 411 is folded along the vertical direction. By folding, the space occupied by the airbag body 41 when it is not inflated is reduced. The airbag body 41 expands under the action of gas and is exposed to the pre-cracked layer 30 in the open state to realize emergency landing on water. This avoids the autogyro descending too fast and improves the safety of the water landing device 100.

[0037] Please refer to the attached document. Figures 1-4 In this embodiment, the compressed gas chamber 60 is detachably connected to the cover 50; this allows the compressed gas chamber 60 to be connected to or detached from the cover 50, improving the ease of replacement of the compressed gas chamber 60. Specifically, the compressed gas chamber 60 is detachably connected to the cover 50 by bolts.

[0038] The canopy 50 has a receiving cavity 50a, which contains the airbag 40 so that the airbag 40 can make full use of the space of the receiving cavity 50a. The airbag 40, the bottom skin 20 and the canopy 50 form a space to be inflated. The two ends of the air supply pipe 61 are connected to the compressed gas chamber 60 and the space to be inflated, respectively. The gas output from the compressed gas chamber 60 enters the space to be inflated through the air supply pipe 61 and inflates the airbag 40 to release the airbag 40 and provide buoyancy for the autogyro.

[0039] Please refer to the attached document. Figures 1-4 In this embodiment, the compressed gas chamber 60 is connected to the gas supply pipe 61 via a gas supply valve 62. This allows the gas supply valve 62 to control the gas supply from the compressed gas chamber 60 to the gas supply pipe 61, preventing excessive gas supply from affecting the function of the airbag 40. In an emergency, the gas supply valve 62 is open, allowing the compressed gas chamber 60 to supply gas to the airbag 40 via the gas supply pipe 61. The airbag 40 expands under the action of the gas and is exposed to the pre-fractured layer 30, which is in the open state, to achieve an emergency landing on water. This avoids the autogyro descending too quickly and improves the safety of the water landing device 100.

[0040] Please refer to the attached document. Figures 1-4 In this embodiment, the compressed gas chamber 60, the gas supply valve 62, and the gas supply pipe 61 are located on the outside of the hatch cover 50; the airbag 40 is located on the inside of the hatch cover 50; there are multiple gas supply pipes 61, which are arranged along the outer periphery of the compressed gas chamber 60. By arranging multiple gas supply pipes 61, the gas supply efficiency of the compressed gas chamber 60 to the airbag 40 is increased, so that the airbag 40 can be inflated in time to achieve emergency landing on water.

[0041] In the second embodiment of the application, an autogyro includes a water landing device 100, which is part of the autogyro. The autogyro utilizes the relative airflow during forward flight to drive the rotor to rotate and generate lift.

[0042] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a water landing device 100 and an autogyro. The autogyro body 10 is provided with a short wing 11; a bottom skin 20 is provided on the side wall of the short wing 11; a pre-splitting layer 30 is connected to the bottom skin 20, and the pre-splitting layer 30 has pre-splitting cracks 31; an airbag 40 is connected to the bottom skin 20 and is located on one side of the pre-splitting layer 30; the opening of the airbag 40 faces the pre-splitting layer 30; a canopy 50 is connected to the bottom skin 20 and covers the airbag 40; a compressed gas chamber 60 is installed on the canopy 50 and is connected to the chamber through an air supply pipe 61. The internal space of the cover 50; when the autogyro main body 10 is in a water landing state, the pre-crack 31 can be cracked by the impact force when the autogyro main body 10 is in a water landing state, so that the pre-crack layer 30 is in an open state; the compressed gas chamber 60 outputs gas to the gas bag 40 through the gas supply pipe 61, the gas bag 40 expands under the action of the gas and is exposed to the pre-crack layer 30 in an open state, so as to realize the water emergency landing, avoid the autogyro descending too fast, and improve the safety of the water landing device 100.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0044] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0045] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0046] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A waterborne forced descent device, characterized in that, include: The main body of the autogyro is equipped with short wings; The bottom skin is provided on the side wall of the short wing; A pre-cracked layer, connected to the bottom skin, the pre-cracked layer having pre-cracks; An airbag is attached to the bottom skin and is located on one side of the pre-cracked layer; the opening of the airbag faces the pre-cracked layer. A hatch, connected to the bottom skin, and covering the airbag; A compressed gas chamber is installed on the hatch cover and connected to the internal space of the hatch cover via a gas supply pipe; When the main body of the autogyro is in a water-based emergency landing state, the pre-cracked crack can be broken open by the impact force when the main body of the autogyro is in a water-based emergency landing state, so that the pre-cracked layer is in an open state; the compressed gas chamber outputs gas to the airbag through the gas supply pipe, and the airbag expands under the action of the gas and is exposed to the pre-cracked layer in the open state.

2. The water landing device according to claim 1, characterized in that, The pre-crack is located in the middle of the pre-crack layer and is provided on the inner or outer sidewall of the pre-crack layer; The pre-cracks extend outwards from the center of the pre-cracked layer in a crisscross pattern.

3. The water landing device according to claim 2, characterized in that, The pre-crack is an etching groove created by a laser and is recessed into the inner or outer wall of the pre-crack layer.

4. The water landing device according to claim 3, characterized in that, When the main body of the autogyro is in a forced landing state on water, the pre-cracked crack receives the impact force and cracks, causing the pre-cracked layer to crack in an X shape.

5. The water landing device according to claim 1, characterized in that, The airbag includes an airbag body and an airbag connecting part; the airbag connecting part and the airbag body are an integral structure; The airbag connecting part is connected to the bottom skin, and the connection position between the airbag connecting part and the bottom skin is located outside the pre-fracture layer. The airbag body is arranged relative to the pre-fracture layer and is located outside the pre-fracture layer.

6. The water landing device according to claim 5, characterized in that, The airbag body is arranged in a trapezoidal shape and is equipped with a folding arm. The folding arm folds along the vertical direction and expands under the action of gas.

7. The water landing device according to claim 1, characterized in that, The compressed gas chamber is detachably connected to the hatch cover; The hatch has a cavity for accommodating the airbag; the airbag, the bottom skin, and the hatch form an inflatable space. The two ends of the gas supply pipe are connected to the compressed gas chamber and the space to be inflated, respectively. The gas output from the compressed gas chamber enters the space to be inflated through the gas supply pipe and inflates the airbag.

8. The water landing device according to claim 7, characterized in that, The compressed gas chamber is connected to the gas supply pipe via a gas supply valve.

9. The water landing device according to claim 7, characterized in that, The compressed gas chamber, the gas supply valve, and the gas supply pipe are located on the outside of the hatch; the airbag is located on the inside of the hatch. The gas supply pipes are multiple, and the multiple gas supply pipes are arranged along the outer periphery of the compressed gas chamber.

10. An autogyro, characterized in that, Includes the water landing device as described in any one of claims 1 to 9.

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