Runway device for assisting take-off and take-off assisting system
By designing runway devices for fixed-wing aircraft, including setting up upper side walls and arc-shaped runways, the problem of the aircraft not being able to take off smoothly under the complexity of the aerial environment is solved, and the smooth takeoff and wind resistance of the aircraft are achieved.
Patent Information
- Application Number
- CN202421665007.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-15
AI Technical Summary
When using the existing auxiliary takeoff system, fixed-wing aircraft often cannot take off from the auxiliary takeoff system due to the complexity of the aerial environment.
A runway device for assisting takeoff is provided, including several runways, each runway is provided with an upper side wall to restrict the wheels of the aircraft from the runway, the lower side wall and the upper side wall of the runway are configured to be arcuate to reduce wind resistance, and the runway device is detachably connected to the platform by a connecting piece.
Through the design of the runway device, the aircraft can continue to taxi for a distance after reaching the take-off speed, and is separated from the runway device after being restricted by the upper side wall, thereby achieving a smooth take-off and reducing wind resistance.
Smart Images
Figure CN222756795U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of unmanned aerial vehicles, and in particular to a runway device and an auxiliary take-off system for assisting a fixed-wing aircraft to take off. Background Art
[0002] Fixed-wing aircraft have outstanding advantages over rotary-wing aircraft in terms of mission load, cruising capability, aerial relay communication, search and rescue, etc. Fixed-wing aircraft require a certain take-off distance and can be accelerated in the air by an assisted take-off system. When using existing assisted take-off systems to assist take-off, fixed-wing aircraft often cannot take off smoothly after detaching from the assisted take-off system even if they reach the take-off speed due to the complexity of the air environment. Utility Model Content
[0003] In order to solve the above technical problems, the present disclosure provides a runway device and an assisted take-off system for assisted take-off.
[0004] In a first aspect, the present disclosure provides a runway device for assisting takeoff, comprising a plurality of runways. The plurality of runways are used to support wheels of an aircraft, and the plurality of runways are configured to include a bottom wall and lower side walls located on both sides of the bottom wall. At least one end of a portion of the runways further includes an upper side wall, the upper side wall being connected to a lower side wall, and the upper side wall being used to limit the wheels from being detached from the runway from above the runway.
[0005] Further, the plurality of runways are configured as a first runway, a second runway and a third runway, the third runway is located between the first runway and the second runway, and the first runway and the second runway are both provided with an upper side wall. Preferably, the third runway is provided with an upper side wall, and the lower side walls and the upper side walls of the first runway, the second runway and the third runway are all configured in an arc shape suitable for reducing wind resistance.
[0006] More preferably, the inner surface of the cross section of the upper side wall portion of the first runway, the second runway and the third runway forms a C shape. The third runway is constructed with two symmetrically arranged upper side walls, and an opening is formed between the two upper side walls of the third runway. The first runway and the second runway each have an upper side wall, the upper side wall of the first runway is connected to the lower side wall of the first runway near the outside, and an opening is formed between the upper side wall of the first runway and the lower side wall of the first runway near the inside; the upper side wall of the second runway is connected to the lower side wall of the second runway near the outside, and an opening is formed between the upper side wall of the second runway and the lower side wall of the second runway near the inside.
[0007] Specifically, the lower sidewalls of the first runway and the second runway near the outer side are higher than the lower sidewalls near the inner side. More specifically, the lower sidewalls of the first runway and the second runway near the inner side are the first lower sidewalls, the inner surface of the first lower sidewall adjacent to the bottom wall is an arc, the arc is 1 / 4 of a circle, the lower sidewalls of the first runway and the second runway near the outer side are the second lower sidewalls, and the ratio of the lateral width to the height of the inner contour of the cross section of the second lower sidewall is less than 1.
[0008] Optionally, the ends of the upper side walls of the first and second runways are provided with baffles, respectively. Optionally, a gap is formed between the upper side wall and the lower side wall of the third runway; the baffles of the first and second runways and the lower side walls and upper side walls of the two runways close to the outside are provided with holes.
[0009] In a second aspect, the present disclosure provides an assisted takeoff system, comprising a platform of a grid structure, a rotor connected to the platform, and the runway device provided in the first aspect. Specifically, the runway device further comprises a plurality of connectors, at least one connector is provided at the lower portion of each runway, and the runway device is detachably connected to the platform via the connectors. The connectors are configured to include a base and a tube body connected to the base, the base is connected to the bottom wall of each runway, and the tube body is connected to the platform.
[0010] Features and advantages of the present disclosure include:
[0011] At least part of the runway of the runway device disclosed in the present invention is provided with an upper side wall. When the aircraft reaches the take-off speed, the aircraft is restricted by the upper side wall and continues to glide on the runway for a distance before separating from the runway device, which is conducive to the smooth take-off of the aircraft. The lower side wall and the upper side wall of each runway are configured to be arc-shaped suitable for reducing wind resistance, which is conducive to reducing wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] Figure 1 A perspective schematic diagram of a runway device for assisting takeoff according to the present disclosure is shown;
[0014] Figure 2 Shows Figure 1 A schematic diagram of the main view of the runway installation in FIG.
[0015] Figure 3 Shows Figure 1 Schematic diagram of the connector in .
[0016] Description of reference numerals:
[0017] 100 - runway device, first end 102, second end 104;
[0018] 10-first runway, 11-bottom wall, 12-lower side wall, 13-lower side wall, 14-upper side wall, 15-first hole, 16-second hole, 17-baffle, 18-third hole, 19-opening;
[0019] 20 - second runway, 21 - bottom wall, 22 - lower side wall, 23 - lower side wall, 24 - upper side wall, 25 - first hole, 26 - second hole, 27 - baffle, 28 - third hole, 29 - opening;
[0020] 30-third runway, 31-bottom wall, 32-lower side wall, 34-upper side wall, 35-gap, 36-opening;
[0021] 40 -connecting piece, 41 -base, 42 -tube body, 44 -connecting plate, 45 -groove, 46 -fourth hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.
[0023] The present disclosure provides a runway device for assisting takeoff and an assisted takeoff system including the same. The assisted takeoff system includes a runway device, a platform and a rotor, wherein the runway device and the rotor are both connected to the platform and are used to assist a fixed-wing aircraft (hereinafter referred to as aircraft) in taking off. The aircraft is placed on the runway device and can be accelerated in the air by carrying it on the assisted takeoff system. When the aircraft reaches the takeoff speed, the aircraft continues to glide on the runway device for a distance before separating from the runway device, which is conducive to the smooth takeoff of the aircraft.
[0024] Specifically, the platform can be configured into any shape suitable for supporting the runway device. Optionally, in some embodiments, the platform is configured into a plate-like shape with a plane; in other embodiments, the platform is configured into a grid structure (not shown in the figure), for example, connected by profiles, etc. Preferably, the platform is configured into a grid structure, which is conducive to reducing weight and wind resistance.
[0025] See also Figure 1The runway device 100 for assisting takeoff includes a plurality of runways, and the runways are used to support the wheels of an aircraft. The runway is constructed to include a bottom wall and lower side walls located on both sides of the bottom wall, and at least part of the runway also includes an upper side wall connected to the lower side wall, and the upper side wall is used to limit the wheels from leaving the runway from above the runway. In particular, the upper side wall is arranged at one end of the runway. The runway device 100 has a first end 102 and a second end 104, and the upper side wall is arranged at the first end 102 of the runway device 100. When the aircraft takes off, it starts to slide from the end of the runway where the upper side wall is arranged, and continues to be coupled with the runway due to the restriction of the upper side wall; when the aircraft slides to the part of the runway where the upper side wall is not arranged, the wheels of the aircraft can leave the runway from above the runway. When projected in the height direction (i.e., projected to the horizontal plane), the projection of the upper side wall can completely cover the projection of the bottom wall, or can only cover a part of the projection of the bottom wall, for example, covering less than half of the projection of the bottom wall. There is no specific limitation here, as long as the upper side wall can limit the wheels from leaving the runway from above the runway.
[0026] Specifically, the number of the plurality of runways matches the number of wheels of the aircraft. In some embodiments, the aircraft includes two main wheels and an auxiliary wheel located between the two main wheels. The plurality of runways are configured to include a first runway 10, a second runway 20, and a third runway 30, wherein the third runway 30 is located between the first runway 10 and the second runway 20. The first runway 10 and the second runway 20 are used to support the two main wheels, and the third runway 30 is used to support the auxiliary wheels. At least one of the first runway 10, the second runway 20, and the third runway 30 is provided with an upper side wall. In some embodiments, the first runway 10 and the second runway 20 are both provided with an upper side wall. Preferably, the third runway 30 is also provided with an upper side wall.
[0027] See also Figure 1 and Figure 2 The first runway 10 extends longitudinally and is configured into a shape suitable for the corresponding wheels of the aircraft to slide. Specifically, the first runway 10 includes a bottom wall 11, a lower side wall 12, a lower side wall 13 and an upper side wall 14.
[0028] The lower side wall 12 is connected to the side of the bottom wall 11 close to the third runway 30, that is, the lower side wall 12 is located on the inner side; the lower side wall 13 is connected to the side of the bottom wall 11 away from the third runway 30, that is, the lower side wall 13 is located on the outer side. The upper surface of the bottom wall 11 is configured as a plane, the inner surfaces of the lower side walls 12 and 13 are configured as arcs, and the inner surface of the upper side wall 14 is configured as an arc that curls upward, so that the inner surface of the cross section of the first runway 10 having the upper side wall 14 portion forms a C shape, and the opening 19 of the C shape faces the third runway 30 or the outer side. When projected along the height direction, when the upper side wall 14 is projected onto the bottom wall 11, the projection of the upper side wall 14 can completely cover the bottom wall 11, and preferably, the projection of the upper side wall 14 can just completely cover the lower side wall 12. The upper side wall 14 can be connected to any one of the lower side walls 13 and 14. Preferably, the lower side wall 13 includes a first portion and a second portion distributed longitudinally, the first portion of the lower side wall 13 is close to the first end 102 of the runway device 100, and the second portion is close to the second end 104 of the runway device 100. The upper side wall 14 is connected to the first portion of the lower side wall 13, so that the C-shaped opening of this portion of the first runway 10 faces the third runway 30, that is, an opening 19 is formed between the upper side wall 14 and the lower side wall 12. The opening 19 is conducive to the arrangement of the aircraft, such as placing the landing gear of the aircraft. Optionally, the longitudinal length of the upper side wall 14 accounts for about half of the longitudinal length of the first runway 10.
[0029] Specifically, the first runway 10 can be formed by curling a thin plate, and the lower side wall 12, the bottom wall 11, the lower side wall 13 and the upper side wall 14 are connected in sequence, so that the cross section of the portion of the first runway 10 where the upper side wall 14 is provided forms a C shape. Preferably, the first runway 10 is configured to be an arc suitable for reducing wind resistance. Specifically, the lower side wall 13 is higher than the lower side wall 12, which not only limits the wheels of the aircraft from leaving the runway from the side, but also reduces wind resistance. Optionally, the height of the lower side wall 13 is 1.5 to 2.5 times the height of the lower side wall 12. More specifically, the arc of the lower side wall 12 is gentle, for example, a circular arc, and the arc of the lower side wall 13 is steep and slightly convex outward. Preferably, the upper surface of the bottom wall 11 is tangent to the inner surface of the lower side wall 12, and the inner surface of the lower side wall 12 is configured to be an arc of π / 2 rad (i.e., 1 / 4 of a circle). The ratio of the lateral width to the height of the inner profile of the cross section of the lower side wall 13 is less than 1, for example, the ratio is 1 / 2, 1 / 4, 1 / 6, etc. In some embodiments, the lower side wall 12 further includes a vertical portion, and the inner side wall of the vertical portion is tangent to the inner arc wall. Optionally, in some embodiments, the first runway 10 further includes a baffle 17 disposed at the first end 102 of the runway device. The baffle 17 is provided to help limit the wheels of the aircraft from leaving the runway from this end of the first runway 10.
[0030] Continue to see Figure 1 , Figure 2The second runway 20 includes a bottom wall 21, a lower side wall 22, a lower side wall 23 and an upper side wall 24, so that the inner surface of the cross section of the second runway 20 where the upper side wall 24 is arranged forms a C shape, and the opening 29 of the C shape faces the third runway 30 or the outside. Among them, the lower side wall 22 is the lower side wall close to the inside, and the lower side wall 23 is the lower side wall close to the outside. The specific structure of the second runway 20 can refer to the first runway 10, which will not be repeated here. Preferably, the second runway 20 and the first runway 10 are symmetrically arranged on both sides of the third runway 30. Optionally, in some embodiments, the second runway 20 also includes a baffle 27 arranged at the first end 102 of the runway device.
[0031] The lower side walls of the first runway 10 and the second runway 20 close to the inner side are also referred to as first lower side walls, and the lower side walls of the first runway 10 and the second runway 20 close to the outer side are also referred to as second lower side walls.
[0032] Continue to see Figure 1 , Figure 2 The third runway 30 includes a bottom wall 31, two lower side walls 32 and two upper side walls 34, the lower side walls 32 are respectively connected to both sides of the bottom wall 31, each upper side wall 34 is connected to one lower side wall 32 and the upper side wall 34 is arranged near the first end 102 of the runway device 100, and an opening 36 is formed between the two upper side walls 34. When projected in the height direction, the projection of the upper side wall 34 covers less than half of the projection of the bottom wall. The inner surface of the cross section of the portion of the third runway 30 where the upper side walls 34 are arranged is C-shaped, and the opening of the C-shape faces upward. Specifically, the third runway 30 is formed into a symmetrical pattern, and the two lower side walls 32 and the two upper side walls 34 are symmetrically arranged. The upper surface of the bottom wall 31 is configured as a plane, and the inner sides of the lower side walls 32 and the upper side walls 34 are configured as an arc. In some embodiments, the inner sides of the lower side walls 32 and the upper side walls 34 may be configured as a circular arc. Specifically, the third runway 30 may be formed by curling a thin plate.
[0033] Optionally, at least one of the first runway 10, the second runway 20, and the third runway 30 is provided with holes or gaps for reducing wind resistance. Specifically, the lower side walls 13, 23 and the upper side walls 14, 24 of the first runway 10 and the second runway 20 located on the outer side are provided with holes for reducing wind resistance. More specifically, the first part of the lower side wall 13 is provided with first holes 15 distributed longitudinally, and the connection between the second part of the lower side wall 13 and the upper side wall 14 is provided with second holes 16 distributed longitudinally, and the second holes 16 are partially located in the lower side wall 13 and partially located in the upper side wall 14. Optionally, the first hole 15 and the second hole 16 are both configured in a circular shape, and the diameter of the second hole 16 is greater than the diameter of the first hole 15. Optionally, the baffle 17 is provided with a third hole 18. Specifically, the baffle 17 is provided with four rows of third holes 18.
[0034] Similarly, the lower side wall 23 also includes a first portion and a second portion, and the upper side wall 24 is connected to the second portion of the lower side wall 23. The first portion of the lower side wall is provided with first holes 25 distributed longitudinally, and the second portion of the lower side wall 23 and the upper side wall 24 are provided with second holes 26 distributed longitudinally, and the second holes 26 are partially located in the lower side wall 23 and partially located in the upper side wall 24. Optionally, the first hole 25 and the second hole 26 are both configured in a circular shape, and the diameter of the second hole 26 is greater than the diameter of the first hole 25. Optionally, the baffle plate 27 is provided with third holes 28. Specifically, the baffle plate 27 is provided with four rows of third holes 28.
[0035] Specifically, the third runway 30 is provided with longitudinally distributed gaps 35, and the gaps 35 are located between the lower side wall 32 and the upper side wall 34. One end of the upper side wall 34 is connected to the lower side wall 32, and the end is close to the first end 102 of the runway device 100.
[0036] Continue to see Figures 1 to 3 The runway device 100 further includes a plurality of connectors 40, and at least one connector 40 is provided at the bottom of each runway. The runway device 100 detachably connects each runway to the platform through the connectors 40. Specifically, the connector 40 includes a base 41 and a tube body 42 connected to the base 41. The base 41 is connected to each runway, and the tube body 42 is connected to the platform of the assisted take-off system. Specifically, the upper surface of the base 41 is configured to be suitable for combining with the runway. More specifically, the upper surface of the base 41 is configured to be a plane, and the base 41 contacts the bottom wall 11, 21, 31 of the runway. The base 41 is provided with a plurality of fourth holes 46, and bolts or screws extend through the fourth holes 46 to be fixed to the bottom wall of the runway.
[0037] The tube body 42 is provided with a passage, and the extension direction of the tube body 42 is perpendicular to the extension direction of the runway 10, 20, 30. Optionally, the cross section of the passage of the tube body 42 is circular, suitable for connection with the platform, for example, suitable for connection with the circular steel pipe of the platform. Optionally, the tube body 42 can be configured as a first tube body part and a second tube body part that can be detachably connected, so that the tube body 42 can be easily connected to the circular steel pipe. Optionally, in some embodiments, the fourth hole 46 extends through the base 41 and the tube body 42, and the steel pipe is also provided with a hole, and a bolt or screw can extend through the steel pipe, the tube body 42 and the base 41 to limit the movement of the connector 40 on the platform, for example, to limit sliding along the steel pipe.
[0038] Optionally, the connector 40 further includes a connecting plate 44 disposed on both sides of the tube body 42, the connecting plate 44 and the base 41 and the tube body 42 form a groove 45, and the opening direction of the groove 45 is consistent with the extension direction of the runway. In some embodiments, the connector 40 can also be connected to the platform through the groove 45. Optionally, the connecting plate 44 is also provided with a fourth hole 46, and a bolt or screw extends through the fourth hole 46 to be fixed to the platform, thereby limiting the movement of the connector 40 on the platform.
[0039] Specifically, each runway is provided with two connecting members 40, one connecting member 40 is provided in the middle of the runway 10, 20, 30, and one connecting member 40 is provided at the end of the runway, and the end is close to one end of the upper side wall 14, 24, 34 (ie, the first end 102 of the runway device).
[0040] The above are only several embodiments of the present disclosure. Those skilled in the art may make various changes or modifications to the embodiments of the present disclosure based on the contents disclosed in the application documents without departing from the spirit and scope of the present disclosure.
Claims
1. A runway device for assisting take-off, characterized in that: include: A plurality of runways, the plurality of runways being used to support wheels of the aircraft, the plurality of runways being configured to include a bottom wall and lower side walls located on both sides of the bottom wall; Wherein, at least one end of a portion of the runway further comprises an upper side wall, wherein the upper side wall is connected to a lower side wall, and the upper side wall is used to limit the wheels from leaving the runway from above the runway.
2. The runway device according to claim 1, characterized in that: The plurality of runways are configured into a first runway, a second runway and a third runway. The third runway is located between the first runway and the second runway. The first runway and the second runway are both provided with an upper side wall.
3. The runway device according to claim 2, characterized in that: The third runway is provided with an upper side wall, and the lower side walls and upper side walls of the first runway, the second runway and the third runway are all constructed in an arc shape suitable for reducing wind resistance.
4. The runway device according to claim 3, characterized in that: The inner surface of the cross section of the side wall portion of the first runway, the second runway and the third runway forms a C shape; The third runway is constructed with two upper side walls arranged symmetrically, and an opening is formed between the two upper side walls of the third runway; The first runway and the second runway each have an upper side wall, the upper side wall of the first runway is connected to the lower side wall of the first runway near the outer side, and an opening is formed between the upper side wall of the first runway and the lower side wall of the first runway near the inner side; the upper side wall of the second runway is connected to the lower side wall of the second runway near the outer side, and an opening is formed between the upper side wall of the second runway and the lower side wall of the second runway near the inner side.
5. The runway device according to claim 4, characterized in that: The lower side walls of the first runway and the second runway close to the outer side are higher than the lower side walls close to the inner side.
6. The runway device according to claim 5, characterized in that: The lower side wall of the first runway and the second runway close to the inner side is the first lower side wall, the inner surface of the first lower side wall adjacent to the bottom wall is an arc, and the arc is 1 / 4 of a circle, the lower side wall of the first runway and the second runway close to the outer side is the second lower side wall, and the ratio of the lateral width to the height of the inner contour of the cross section of the second lower side wall is less than 1.
7. The runway device according to claim 6, characterized in that: The ends of the upper side walls of the first runway and the second runway are respectively provided with baffles.
8. The runway device according to claim 7, characterized in that: A gap is formed between the upper side wall and the lower side wall of the third runway; and holes are arranged on the baffles of the first runway and the second runway and on the lower side walls and the upper side walls of the first runway and the second runway near the outer sides.
9. An assisted take-off system, characterized in that: A platform comprising a grid structure, a rotor connected to the platform and a runway device as claimed in any one of claims 1 to 8.
10. The assisted take-off system according to claim 9, characterized in that: The runway device further comprises a plurality of connecting members, at least one connecting member is provided at the lower part of each runway, and the runway device is detachably connected to the platform via the connecting members; The connecting member is constructed to include a base and a tube body connected to the base, the base is connected to the bottom wall of each runway, and the tube body is connected to the platform.