Lifting body type amphibious undercarriage special for vertical take-off and landing aircraft

Abstract

The utility model discloses a special lifting body type amphibious undercarriage for a vertical take-off and landing aircraft, which comprises a vertical take-off and landing aircraft body, a sleigh type undercarriage main body, an undercarriage support column, a lifting body type buoy and a connection limiting mechanism, and the sleigh type undercarriage main body is fixed at the bottom of the vertical take-off and landing aircraft body through the undercarriage support column. The lifting force body type floating cylinder is detachably connected to the bottom of the sled type undercarriage body through the connecting and limiting mechanism, and the sled type undercarriage body and the lifting force body type floating cylinder are both in bilateral symmetry about the central axis of the vertical take-off and landing aircraft body. The assembling state and the disassembling state of the lifting force body type buoy can be achieved, and in the disassembling state, the requirement for vertical take-off and landing of a vertical take-off and landing aircraft on land can be met; in the assembled state, the requirement for vertical take-off and landing of the vertical take-off and landing aircraft on the water surface can be met, the vertical take-off and landing aircraft can take off and land in two different environments, and the use range of the vertical take-off and landing aircraft is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical take-off and landing aircraft landing gears, in particular to a lifting body type amphibious landing gear special for vertical take-off and landing aircrafts. Background Art

[0002] A vertical take-off and landing aircraft is an aircraft that can take off or land without taxiing. Compared with traditional fixed-wing aircraft, this type of aircraft does not need to rely on traditional runways or flight decks, and can also achieve fixed points and hover in the air, significantly improving its mission performance. Vertical take-off and landing aircraft can take off in a small space, and their flexibility and maneuverability are stronger than general aircraft, so they have a wide range of application scenarios. In the military field, vertical take-off and landing aircraft can take off and land on ships to perform patrol, rescue, anti-submarine and anti-ship tasks. They can provide air support at sea and expand the combat radius of warships. In the civilian field, vertical take-off and landing aircraft can be used for fast and efficient cargo transportation. They can quickly transport goods between cities and remote areas, reducing transportation time and logistics costs. At the same time, in natural disasters and emergency rescue, they can quickly transport rescue personnel and supplies to disaster areas to perform search and rescue, rescue and post-disaster reconstruction tasks. In view of the above advantages, this type of aircraft will be one of the main directions for the development of future aircraft.

[0003] Although vertical take-off and landing aircraft do not have high requirements for the environment for take-off and landing, today's vertical take-off and landing aircraft often need the help of land or decks to take off and land. There are very few aircraft that can take off and land vertically directly on the water. In special operating environments, vertical take-off and landing aircraft are still subject to certain restrictions.

[0004] Seaplanes are mainly divided into two categories: hull-type and float-type. The former designs the lower half of the fuselage into a special configuration similar to the bottom of a ship to achieve better hydrodynamic performance and meet the needs of water sliding. However, hull-type aircraft have poor wave resistance, so two small floats are often arranged symmetrically under the two wings to improve their stability on the water. Float-type seaplanes install two large floats under the fuselage of the aircraft to achieve water sliding. Compared with hull-type aircraft, float-type aircraft have stronger wave resistance. At the same time, because the fuselage of float-type aircraft is higher from the water surface, the splashes caused by sliding are less likely to splash onto the fuselage and other parts.

[0005] However, float-type seaplanes also have problems. Compared with hull-type seaplanes, floats are narrower and have poor lateral stability during takeoff. At the same time, due to the floats, float-type seaplanes are subject to greater air resistance during flight, which reduces flight efficiency. Utility Model Content

[0006] The utility model aims to solve the technical problems existing in the prior art and provide a lifting body type amphibious landing gear specially used for vertical take-off and landing aircraft.

[0007] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a lifting body type amphibious landing gear specially used for vertical take-off and landing aircraft, comprising a vertical take-off and landing aircraft body, a sled-type landing gear body, a landing gear strut, a lifting body type float and a connection and limiting mechanism, wherein the sled-type landing gear body is fixed to the bottom of the vertical take-off and landing aircraft body through the landing gear strut, and the lifting body type float is detachably connected to the bottom of the sled-type landing gear body through the connection and limiting mechanism, and the sled-type landing gear body and the lifting body type float are both left-right symmetrical about the central axis of the vertical take-off and landing aircraft body.

[0008] Preferably, the sled-type landing gear body includes four adapters, two curved pipes arranged front and rear, and two horizontally arranged skids, the curved pipe is arranged in an inverted U shape, the skid is connected to the adapter via screws, the adapter is connected to the curved pipe via screws, the curved pipe is provided with a landing gear strut, the landing gear strut is connected to the vertical take-off and landing aircraft body, and the two skids are left-right symmetrical about the central axis of the vertical take-off and landing aircraft body.

[0009] Preferably, the landing gear strut is provided with an upper fixing hole, a lower fixing hole and a middle hole, the landing gear strut is connected to the vertical take-off and landing aircraft body by inserting a pin into the upper fixing hole, the bent pipe passes through the lower fixing hole, and the bottom of the bent pipe and the vertical take-off and landing aircraft body are provided with a threaded hole matching the middle hole, and the landing gear strut is further connected and limited with the vertical take-off and landing aircraft body and the bent pipe by inserting a screw into the middle hole.

[0010] Preferably, the lifting body type buoy includes a buoy frame, a lifting body type shape and a hull type shape, the buoy frame is used to support the skin to provide the required aerodynamic shape, the lifting body type shape is located in the upper half of the buoy frame, and the hull type shape is located in the lower half of the buoy frame.

[0011] Preferably, the connection limiting mechanism includes a truss structure, the truss structure is welded to the pontoon frame, the truss structure is provided with a U-shaped groove for fitting the slide, the U-shaped groove and the slide are connected to each other by screws, and threaded holes corresponding to the screws are opened on the U-shaped groove and the slide.

[0012] Preferably, a short opening is formed on the inner side of the U-shaped groove.

[0013] Preferably, when the lifting body type buoy is connected to the bottom of the sled-type landing gear body through the limiting mechanism, the sled-type landing gear body is in a water surface take-off and landing mode; when the lifting body type buoy is removed through the limiting mechanism, the sled-type landing gear body is in a land take-off and landing mode.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can realize the assembly state and disassembly state of the lifting body type float by connecting the limiting structure. In the disassembly state, only the sled-type landing gear body is retained on the vertical take-off and landing aircraft body, which can meet the vertical take-off and landing needs of the vertical take-off and landing aircraft on land; in the assembly state, the sled-type landing gear is retained with the lifting body type float, which can meet the vertical take-off and landing needs of the vertical take-off and landing aircraft on the water. The utility model can realize take-off and landing in two different environments of water and land, expanding the use range of vertical take-off and landing aircraft.

[0016] 2. The utility model adopts a lifting body type float, which has both a lifting body type appearance and a hull type appearance. Compared with the traditional seaplane landing gear float, the lifting body type float has a better aerodynamic shape, brings less resistance during the flight of the aircraft, and improves the flight efficiency of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the overall (land take-off and landing mode) structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure (land mode) of the utility model after removing the vertical take-off and landing aircraft body;

[0020] Figure 3 This is a schematic diagram of the structure of the water surface take-off and landing mode of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the water surface take-off and landing mode after the vertical take-off and landing aircraft body is removed;

[0022] Figure 5 It is an exploded view of the main part of the sled-type landing gear of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the landing gear strut part of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the lifting buoy part of the utility model;

[0025] Figure 8 It is a structural schematic diagram of the connection and limiting mechanism part of the utility model.

[0026] Figure annotation:

[0027] 1. Vertical take-off and landing aircraft body; 2. Sled-type landing gear body; 3. Landing gear strut; 4. Lifting body float; 5. Connection limit mechanism; 6. Bend pipe; 7. Sled; 8. Adapter; 9. Upper fixing hole; 10. Lower fixing hole; 11. Middle hole; 12. Float frame; 13. Lifting body shape; 14. Hull shape; 15. Truss structure; 16. U-shaped groove; 17. Short opening. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference Figure 1-Figure 4 According to a preferred embodiment of the utility model, a lifting body type amphibious landing gear specially used for a vertical take-off and landing aircraft comprises a vertical take-off and landing aircraft body 1, a sled type landing gear body 2, a landing gear strut 3, a lifting body type buoy 4 and a connection and limiting mechanism 5, wherein the sled type landing gear body 2 is fixed to the bottom of the vertical take-off and landing aircraft body 1 through the landing gear strut 3, and the lifting body type buoy 4 is detachably connected to the bottom of the sled type landing gear body 2 through the connection and limiting mechanism 5, and the sled type landing gear body 2 and the lifting body type buoy 4 are both left-right symmetrical about the central axis of the vertical take-off and landing aircraft body 1.

[0033] In this embodiment, Figure 2 , Figure 5 As shown, the sled landing gear body 2 includes four adapters 8, two curved pipes 6 arranged front and rear, and two horizontally arranged skids 7, the curved pipe 6 is arranged in an inverted U shape, the skid 7 is connected to the adapter 8 by screws, the adapter 8 is connected to the curved pipe 6 by screws, the curved pipe 6 is provided with a landing gear strut 3, the landing gear strut 3 is connected to the vertical take-off and landing aircraft body 1, and the two skids 7 are symmetrical about the central axis of the vertical take-off and landing aircraft body 1.

[0034] In this embodiment, Figure 6 As shown, the landing gear strut 3 is provided with an upper fixing hole 9, a lower fixing hole 10 and a middle hole 11. The landing gear strut 3 is connected to the vertical take-off and landing aircraft body 1 by inserting a pin into the upper fixing hole 9. The bent pipe 6 passes through the lower fixing hole 10. The bottom of the bent pipe 6 and the vertical take-off and landing aircraft body 1 is provided with a threaded hole matching the middle hole 11. The landing gear strut 3 is further connected to the vertical take-off and landing aircraft body 1 and the bent pipe 6 by inserting a screw into the middle hole 11 to limit the movement of the bent pipe.

[0035] In this embodiment, there are four landing gear struts 3 , two of which are arranged on each curved pipe 6 , and the landing gear struts 3 arranged on each curved pipe 6 are bilaterally symmetrical about the central axis of the vertical take-off and landing aircraft body 1 .

[0036] In this embodiment, Figure 7 As shown, the lifting body type pontoon 4 includes a pontoon frame 12, a lifting body type shape 13 and a hull type shape 14. The pontoon frame 12 is used to support the skin to provide the required aerodynamic shape. The lifting body type shape 13 is located in the upper half of the pontoon frame 12, and the hull type shape 14 is located in the lower half of the pontoon frame 12.

[0037] In this embodiment, Figure 8 As shown, the connection limiting mechanism 5 includes a truss structure 15, the truss structure 15 is welded to the pontoon frame 12, the truss structure 15 is provided with a U-shaped groove 16 for fitting the slide 7, the U-shaped groove 16 is connected to the slide 7 by screws, and the U-shaped groove 16 and the slide 7 are provided with threaded holes corresponding to the screws; the truss structure 15 is used to support the U-shaped groove 16 and connect the lifting body pontoon 4.

[0038] In this embodiment, a short opening 17 is formed inside the U-shaped groove 16 to prevent the curved pipe 6 from colliding with the U-shaped groove 16 .

[0039] When the lifting body buoy 4 is connected to the bottom of the sled landing gear body 2 through the limiting mechanism 5, the sled landing gear body 2 is in the water surface take-off and landing mode; when the lifting body buoy 4 is disassembled through the limiting mechanism 5, the sled landing gear body 2 is in the land take-off and landing mode.

[0040] In summary, the utility model can realize the assembly state and disassembly state of the lifting body type float 4 by connecting the limiting structure 5. Only the sled-type landing gear body 2 is retained on the vertical take-off and landing aircraft body 1, which can meet the vertical take-off and landing needs of the vertical take-off and landing aircraft on land; in the assembled state, the sled-type landing gear body 2 is provided with a lifting body type float 4, which can meet the vertical take-off and landing needs of the vertical take-off and landing aircraft on the water surface. The utility model can realize take-off and landing in two different environments of water and land, expanding the use scope of vertical take-off and landing aircraft.

[0041] The utility model adopts a lifting body type float 4, which has both a lifting body type appearance and a hull type appearance. Compared with the traditional seaplane landing gear float, the lifting body type float 4 has a better aerodynamic shape, brings less resistance during the flight of the aircraft, and improves the flight efficiency of the aircraft.

[0042] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0043] The above description is only a preferred implementation mode of the present utility model. Any technical solution that achieves the purpose of the present utility model by basically the same means belongs to the protection scope of the present utility model.

Claims

1. A lifting body type amphibious landing gear specially used for vertical take-off and landing aircraft, characterized in that: The invention comprises a vertical take-off and landing aircraft body (1), a sled-type landing gear body (2), a landing gear strut (3), a lifting body type float (4) and a connection and limiting mechanism (5); the sled-type landing gear body (2) is fixed to the bottom of the vertical take-off and landing aircraft body (1) through the landing gear strut (3); the lifting body type float (4) is detachably connected to the bottom of the sled-type landing gear body (2) through the connection and limiting mechanism (5); the sled-type landing gear body (2) and the lifting body type float (4) are both symmetrical about the central axis of the vertical take-off and landing aircraft body (1).

2. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 1, characterized in that: The sled landing gear body (2) comprises four adapters (8), two curved pipes (6) arranged front and rear, and two horizontally arranged skids (7), wherein the curved pipe (6) is arranged in an inverted U shape, the skid (7) is connected to the adapter (8) by screws, the adapter (8) is connected to the curved pipe (6) by screws, the curved pipe (6) is provided with a landing gear strut (3), the landing gear strut (3) is connected to the vertical take-off and landing aircraft body (1), and the two skids (7) are symmetrical about the central axis of the vertical take-off and landing aircraft body (1).

3. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 2, characterized in that: The landing gear strut (3) is provided with an upper fixing hole (9), a lower fixing hole (10) and a middle hole (11); the landing gear strut (3) is connected to the vertical take-off and landing aircraft body (1) by inserting a pin into the upper fixing hole (9); the bent pipe (6) passes through the lower fixing hole (10); the bottom of the bent pipe (6) and the vertical take-off and landing aircraft body (1) is provided with a threaded hole matching the middle hole (11); the landing gear strut (3) is further connected and limited with the vertical take-off and landing aircraft body (1) and the bent pipe (6) by inserting a screw into the middle hole (11).

4. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 3, characterized in that: The lifting body type buoy (4) comprises a buoy frame (12), a lifting body type shape (13) and a hull type shape (14); the buoy frame (12) is used to support the skin to provide the required aerodynamic shape; the lifting body type shape (13) is located in the upper part of the buoy frame (12), and the hull type shape (14) is located in the lower part of the buoy frame (12).

5. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 4, characterized in that: The connection limiting mechanism (5) comprises a truss structure (15), the truss structure (15) is welded to the pontoon frame (12), a U-shaped groove (16) for fitting the slide (7) is provided on the truss structure (15), the U-shaped groove (16) and the slide (7) are connected by screws, and threaded holes corresponding to the screws are opened on the U-shaped groove (16) and the slide (7).

6. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 5, characterized in that: A short opening (17) is formed inside the U-shaped groove (16).

7. The lifting body type amphibious landing gear for vertical take-off and landing aircraft according to claim 1, characterized in that: When the lifting body type buoy (4) is connected to the bottom of the sled type landing gear body (2) through the limiting mechanism (5), the sled type landing gear body (2) is in a water surface take-off and landing mode; when the lifting body type buoy (4) is disassembled through the limiting mechanism (5), the sled type landing gear body (2) is in a land take-off and landing mode.

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