阅读说明：本技术 一种无人机收放式滑橇回收装置 (Unmanned aerial vehicle retractable skid recovery unit ) 是由 周硕聪 陈章斌 曾姣艳 周硕雄 于 2021-08-10 设计创作，主要内容包括：本发明属于无人机技术领域,具体的说是一种无人机收放式滑橇回收装置,包括机体和设置在其底部的滑橇壳,所述滑橇壳底部的高度逐渐变大,滑橇壳内侧底部固定连接有两个连接板,连接板顶部铰接有减震器,减震器顶端安装在机体底部；所述机体底部设置有收紧装置,收紧装置底部连接在滑橇壳内侧底部,滑橇壳内侧底部设置有缓速装置；本发明通过滑橇壳底部与冰面接触,缓速装置内部的水分流出,与冰面凝固在一起时,能够对其起到减速的作用,提高无人机对较短冰面的适应能力,提高了无人机的安全性；并且在夏季使用时,通过将水流到跑道上,从而对滑橇壳底部摩擦产生的热量进行降温,并能够减少其滑动时的磨损,提高了滑橇壳的使用寿命。(The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a retractable skid recovery device for an unmanned aerial vehicle, which comprises a machine body and a skid shell arranged at the bottom of the machine body, wherein the bottom of the skid shell is gradually increased in height, two connecting plates are fixedly connected to the bottom of the inner side of the skid shell, a shock absorber is hinged to the top of each connecting plate, and the top end of the shock absorber is arranged at the bottom of the machine body; the bottom of the machine body is provided with a tightening device, the bottom of the tightening device is connected to the bottom of the inner side of the skid shell, and the bottom of the inner side of the skid shell is provided with a retarding device; according to the invention, the bottom of the skid shell is in contact with the ice surface, so that water in the speed retarder flows out and can be decelerated when being solidified with the ice surface, the adaptability of the unmanned aerial vehicle to the shorter ice surface is improved, and the safety of the unmanned aerial vehicle is improved; and when using in summer, through on flowing water to the runway to cool down the heat that skid shell bottom friction produced, and can reduce its wearing and tearing when sliding, improved the life of skid shell.)

1. The utility model provides an unmanned aerial vehicle retractable skid recovery unit, includes organism (1) and sets up skid shell (2) in its bottom, its characterized in that: the height of the bottom of the skid shell (2) is gradually increased, two connecting plates (3) are fixedly connected to the bottom of the inner side of the skid shell (2), the top of each connecting plate (3) is hinged with a shock absorber (4), and the top end of each shock absorber (4) is installed at the bottom of the machine body (1); the bottom of the machine body (1) is provided with a tightening device (5), the bottom of the tightening device (5) is connected to the bottom of the inner side of the skid shell (2), and the bottom of the inner side of the skid shell (2) is provided with a retarding device (6).

2. The retractable sled recovery device of unmanned aerial vehicle of claim 1, wherein: tightening means (5) are including U type frame (51), and it has T type pole (52) to peg graft in U type frame (51) bottom, and T type pole (52) bottom is connected with skid shell (2) bottom, and U type frame (51) inner wall both sides are provided with horizontal hydraulic stem (53) near the position department at top, and horizontal hydraulic stem (53) level sets up, and the distance of horizontal hydraulic stem (53) to organism (1) is the same with the thickness of T type pole (52) horizontal segment.

3. The retractable sled recovery device of unmanned aerial vehicle of claim 1, wherein: retarding device (6) are including door type pipe (61), door type pipe (61) bottom both ends all with skid shell (2) fixed connection, and T type hole (64) have all been seted up to skid shell (2) bottom of its bottom both ends department, T type hole (64) inside be provided with rather than assorted T type spare (62), T type spare (62) bottom is located T type hole (64) bottom outside, the vertical section of T type spare (62) is fixed in T type hole (64) through coupling spring (63).

4. The retractable sled recovery device of unmanned aerial vehicle of claim 3, wherein: the diameter of the T-shaped hole (64) with small height is smaller than that of the T-shaped hole (64) with large height, and the bottom ends of the vertical sections of the T-shaped holes (64) are inclined towards the lower position of the bottom of the skid shell (2).

5. The retractable sled recovery device of unmanned aerial vehicle of claim 3, wherein: the top of the door-shaped pipe (61) is fixedly connected with a vertical hydraulic rod (7), the top of the vertical hydraulic rod (7) is fixedly connected with a transverse plate, a heat conducting rod (8) is fixedly connected to one side of the transverse plate, a through hole (9) is formed in the bottom of the machine body (1), and the through hole (9) is located right above the heat conducting rod (8).

6. The retractable sled recovery device of unmanned aerial vehicle of claim 5, wherein: the top end of the heat conducting rod (8) is fixedly connected with a rubber cap (10), the rubber cap (10) is in a round table shape, and the diameter of the top of the rubber cap (10) is smaller than that of the bottom of the rubber cap.

7. The retractable sled recovery device of unmanned aerial vehicle of claim 1, wherein: the edge fixedly connected with sealing washer (11) in skid shell (2) top, sealing washer (11) are made by silicon rubber, and a plurality of round platform holes (12) that the level set up are seted up on sealing washer (11) surface, and the diameter of round platform hole (12) inner rather than its outer end is little.

8. The retractable sled recovery device of unmanned aerial vehicle of claim 4, wherein: the number of the T-shaped holes (64) is set to be a plurality of, the T-shaped holes are evenly distributed at the bottoms of two ends of the door-shaped pipe (61), and the T-shaped holes are arranged in a row in the front-back direction.

Technical Field

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a retractable skid recovery device for an unmanned aerial vehicle.

Background

In the unmanned aerial vehicle system, most unmanned aerial vehicles take off by adopting the modes of launching of a launching cradle, sliding run and assisted flight of a take-off vehicle, launching of a mother aircraft and the like, so that the landing gear of the common aircraft only has the function of 'landing' on the unmanned aerial vehicle without considering the requirement of 'landing'. Compared with a wheel system, the skid system has the following characteristics: (1) the retractable skid device has a simple structure, the radar echo is very small, and the view field of effective reconnaissance load can not be obstructed; (2) the friction between the skid and the recovery site can enable the aircraft to decelerate within a short time and distance until the aircraft stops completely, so that auxiliary deceleration devices such as a brake system or other arresting devices in the aircraft wheel recovery device are omitted; (3) the skid has low requirements on the recovery site, and can be recovered in the sites such as a simple runway; (4) the contact area of the skid and the recovery site is large, a single skid mode can be adopted, and three points are not needed as the wheel system, so that the recovery system is simplified.

When carrying out unmanned aerial vehicle's take off and land in cold areas, descend through utilizing the ice surface, can reduce the construction cost of runway, have obvious realistic meaning, but some river course areas are less, and current unmanned aerial vehicle that has the skid structure slides on the ice surface, because the friction of ice surface is less, therefore unmanned aerial vehicle needs very long distance could stop, causes unmanned aerial vehicle to rush out the ice surface easily, arouses unmanned aerial vehicle's damage.

Therefore, the retractable skid recovery device for the unmanned aerial vehicle is necessary to solve the problems, and the retractable skid recovery device can prevent the unmanned aerial vehicle from rushing out of a runway and reduce the damage of the unmanned aerial vehicle when water flows out and is solidified with an ice surface.

Disclosure of Invention

Aiming at the problems, the invention provides a retractable type skid recovery device of an unmanned aerial vehicle, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an unmanned aerial vehicle retractable skid recovery device comprises a machine body and a skid shell arranged at the bottom of the machine body, wherein the height of the bottom of the skid shell is gradually increased, two connecting plates are fixedly connected to the bottom of the inner side of the skid shell, a shock absorber is hinged to the top of each connecting plate, and the top end of each shock absorber is installed at the bottom of the machine body; the bottom of the machine body is provided with a tightening device, the bottom of the tightening device is connected to the bottom of the inner side of the skid shell, and the bottom of the inner side of the skid shell is provided with a retarding device.

Preferably, tightening means includes U type frame, and it has T type pole to peg graft in U type frame bottom, and T type pole bottom is connected with skid shell bottom, and U type frame inner wall both sides are close to the position department at top and are provided with horizontal hydraulic stem, and horizontal hydraulic stem level sets up, and the distance of horizontal hydraulic stem to the organism is the same with the thickness of T type pole horizontal segment.

Preferably, the retarding device includes door type pipe, door type socle portion both ends all with skid shell fixed connection, and T type hole has all been seted up to the skid shell bottom of its bottom both ends department, and T type downthehole portion is provided with rather than assorted T type spare, and T type spare bottom is located T type hole bottom outside, and the vertical section of T type spare passes through connecting spring to be fixed in T type downthehole.

Preferably, the diameter of the T-shaped hole with small height is smaller than that of the T-shaped hole with large height, and the bottom ends of the vertical sections of the T-shaped holes are inclined towards the position lower than the bottom of the skid shell.

Preferably, the top of the door-shaped pipe is fixedly connected with a vertical hydraulic rod, the top of the vertical hydraulic rod is fixedly connected with a transverse plate, one side of the transverse plate is fixedly connected with a heat-conducting rod, a through hole is formed in the bottom of the machine body, and the through hole is located right above the heat-conducting rod.

Preferably, the top end of the heat conducting rod is fixedly connected with a rubber cap which is in a round table shape, and the diameter of the top of the rubber cap is smaller than that of the bottom of the rubber cap.

Preferably, the edge of the top of the skid shell is fixedly connected with a sealing ring, the sealing ring is made of silicon rubber, a plurality of horizontally arranged circular table holes are formed in the surface of the sealing ring, and the diameter of the inner end of each circular table hole is smaller than that of the outer end of each circular table hole.

Preferably, the number of the T-shaped holes is set to be a plurality, the T-shaped holes are uniformly distributed at the bottoms of the two ends of the door type pipe and are arranged in a row in the front-rear direction.

The invention has the technical effects and advantages that:

1. according to the invention, the bottom of the skid shell is in contact with the ice surface, and water in the speed retarder flows out, so that the water is quickly solidified in low-temperature weather, and can be decelerated when being solidified with the ice surface, so that the unmanned aerial vehicle is prevented from rushing out of the ice surface, the sliding distance of the unmanned aerial vehicle can be obviously reduced, the adaptability of the unmanned aerial vehicle to a shorter ice surface is improved, and the safety of the unmanned aerial vehicle is improved; when the skid shell is used in summer, the water flows onto the runway, so that the heat generated by friction at the bottom of the skid shell is cooled, the abrasion of the skid shell during sliding can be reduced, and the service life of the skid shell is prolonged;

2. the skid shell is lifted to be attached to the top of the machine body, the top end of the heat conducting rod enters the machine body, after the machine body works for a period of time and the temperature in the machine body rises, the hydraulic rod drives the transverse plate, and the transverse plate drives the heat conducting rod to move downwards, so that the heat on the surface of the heat conducting rod is transferred to the surface of the door-shaped pipe, the heat is transferred to liquid water in the door-shaped pipe, and the probability of water solidification in the door-shaped pipe is reduced;

3. according to the invention, the sealing ring can seal the space between the skid shell and the machine body, the circular truncated cone holes on the surface of the skid shell can conveniently compress the sealing ring, and when the unmanned aerial vehicle lands, the skid shell is separated from the machine body, the sealing ring is restored, air can enter the skid shell through the circular truncated cone holes, namely more air enters the bottom of the machine body, and when the air impacts the inner side of the sealing ring and rebounds upwards, the air pushes the unmanned aerial vehicle upwards, so that the impact force of the unmanned aerial vehicle during landing is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a top view of the ski shell of the present invention.

In the figure: the device comprises a machine body 1, a skid shell 2, a connecting plate 3, a shock absorber 4, a tightening device 5, a U-shaped frame 51, a T-shaped rod 52, a horizontal hydraulic rod 53, a speed reducing device 6, a door-shaped pipe 61, a T-shaped part 62, a connecting spring 63, a T-shaped hole 64, a vertical hydraulic rod 7, a heat conducting rod 8, a through hole 9, a rubber cap 10, a sealing ring 11 and a circular truncated cone hole 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;

in the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The invention provides an unmanned aerial vehicle retractable skid recovery device as shown in figures 1-4, which comprises a machine body 1 and a skid shell 2 arranged at the bottom of the machine body, wherein the height of the bottom of the skid shell 2 is gradually increased, two connecting plates 3 are fixedly connected to the bottom of the inner side of the skid shell 2, the tops of the connecting plates 3 are hinged with shock absorbers 4, and the top ends of the shock absorbers 4 are arranged at the bottom of the machine body 1; the bottom of the machine body 1 is provided with a tightening device 5, the bottom of the tightening device 5 is connected to the bottom of the inner side of the skid shell 2, and the bottom of the inner side of the skid shell 2 is provided with a retarding device 6.

When the unmanned aerial vehicle is recovered, the unmanned aerial vehicle descends, the tightening device 5 loosens the skid shell 2, the skid shell 2 descends, so that the skid shell is separated from the machine body 1, the shock absorber 4 is not bound any more, the shock absorber 4 extends, the bottom of the skid shell 2 is in contact with an ice surface, water inside the speed slowing device 6 flows out, so that the water is quickly solidified under low-temperature weather, and when the water is solidified with the ice surface, the water is decelerated, the unmanned aerial vehicle is prevented from rushing out of the ice surface, the sliding distance of the unmanned aerial vehicle can be obviously reduced, the adaptability of the unmanned aerial vehicle to a shorter ice surface is improved, and the safety of the unmanned aerial vehicle is improved; and when using in summer, through on flowing water to the runway to cool down the heat that the bottom friction of skid shell 2 produced, and can reduce its wearing and tearing when sliding, improved the life of skid shell 2.

Referring to the attached drawing 1 of the specification, the tightening device 5 comprises a U-shaped frame 51, a T-shaped rod 52 is inserted into the bottom of the U-shaped frame 51, the bottom end of the T-shaped rod 52 is connected with the bottom of the skid shell 2, horizontal hydraulic rods 53 are arranged at positions, close to the top, of two sides of the inner wall of the U-shaped frame 51, the horizontal hydraulic rods 53 are horizontally arranged, and the distance from the horizontal hydraulic rods 53 to the machine body 1 is the same as the thickness of the horizontal section of the T-shaped rod 52.

Before use, the skid shell 2 is pushed to ascend, so that the horizontal section of the T-shaped rod 52 is contacted with the bottom of the machine body 1, the horizontal section of the T-shaped rod 52 is just positioned on the horizontal hydraulic rod 53, and then the horizontal hydraulic rod 53 is controlled to extend, so that the T-shaped rod 52 is fixed; when the landing is performed, the horizontal hydraulic rod 53 is controlled to be shortened, the T-shaped rod 52 is not fixed by the horizontal hydraulic rod 53, the skid shell 2 moves downwards, and the shock absorber 4 is released from the fixing.

Referring to the attached drawings 1 and 2 in the specification, the retarding device 6 comprises a door type pipe 61, two ends of the bottom of the door type pipe 61 are fixedly connected with the skid shell 2, the bottom of the skid shell 2 at two ends of the bottom of the door type pipe is provided with a T-shaped hole 64, a T-shaped part 62 matched with the T-shaped hole 64 is arranged inside the T-shaped hole 64, the bottom end of the T-shaped part 62 is located on the outer side of the bottom of the T-shaped hole 64, and a vertical section of the T-shaped part 62 is fixed in the T-shaped hole 64 through a connecting spring 63.

Liquid water is stored in the door-shaped pipe 61, heat insulation cotton is filled in the door-shaped pipe 61 and the skid shell 2, the heat insulation effect is achieved, the liquid water is prevented from being solidified, when the unmanned aerial vehicle lands, the skid shell 2 contacts the ground, the bottom end of the T-shaped part 62 is tightly propped against the ice surface, the T-shaped part 62 moves upwards, the liquid water in the door-shaped pipe 61 flows out of the ice surface through the T-shaped hole 64, the liquid water is solidified on the ice surface due to the low external temperature, and the sliding distance of the unmanned aerial vehicle is reduced;

referring to the description of fig. 3, the diameter of the T-shaped hole 64 with a small height is smaller than that of the T-shaped hole 64 with a large height, and the bottom ends of the vertical sections of the T-shaped holes 64 are inclined to a position lower than the bottom of the skid shell 2.

The vertical section bottom in T type hole 64 all inclines to the lower position department in 2 bottoms of ski shell, the direction slope that slides to unmanned aerial vehicle promptly, thereby when the water that flows out in the follow T type hole 64 strikes the ice surface, there is the effect of similar recoil, there is the effect of reaction force to ski shell 2, further reduce its speed of sliding, and because the big T type hole 64 of diameter is located the rear side of fore-and-aft direction, consequently, the water that flows out is more, when freezing and solidifying, it is bigger to unmanned aerial vehicle's resistance, prevent unmanned aerial vehicle from the afterbody perk.

Referring to the attached drawing 1 of the specification, the top of the door-shaped pipe 61 is fixedly connected with a vertical hydraulic rod 7, the top of the vertical hydraulic rod 7 is fixedly connected with a transverse plate, one side of the transverse plate is fixedly connected with a heat-conducting rod 8, the bottom of the machine body 1 is provided with a through hole 9, and the through hole 9 is positioned right above the heat-conducting rod 8.

After the skid shell 2 rises and clings to the top of the machine body 1, the top end of the heat conducting rod 8 enters the machine body 1, after the machine body 1 works for a period of time, the temperature in the machine body 1 rises, the hydraulic rod drives the transverse plate at the moment, and the transverse plate drives the heat conducting rod 8 to move downwards, so that the heat on the surface of the heat conducting rod 8 is transferred to the surface of the door-shaped pipe 61, the heat is transferred to the liquid water in the heat conducting rod, and the probability of solidification of the water in the heat conducting rod is reduced.

Referring to the attached figure 1 of the specification, a rubber cap 10 is fixedly connected to the top end of the heat conducting rod 8, the rubber cap 10 is in a circular truncated cone shape, and the diameter of the top of the rubber cap 10 is smaller than that of the bottom of the rubber cap.

The rubber cap 10 enters the through hole 9 to seal the through hole 9, so that the inside of the low skid shell 2 plays a role in heat preservation.

Referring to the attached drawings 1 and 3 of the specification, a sealing ring 11 is fixedly connected to the edge of the top of the skid shell 2, the sealing ring 11 is made of silicon rubber, a plurality of horizontally arranged circular truncated cone holes 12 are formed in the surface of the sealing ring 11, and the inner ends of the circular truncated cone holes 12 are smaller than the outer ends of the circular truncated cone holes.

Sealing washer 11 can play sealed effect between skid shell 2 and the organism 1, and round platform hole 12 on its surface can conveniently compress sealing washer 11, and when unmanned aerial vehicle descends, skid shell 2 breaks away from the back with organism 1, sealing washer 11 recovers, the air can enter into inside skid shell 2 through round platform hole 12, it is more to enter into the air of organism 1 bottom promptly, when striking 11 inboard and upwards rebounding of sealing washer, there is last thrust to unmanned aerial vehicle, thereby reduce the impact force when unmanned aerial vehicle descends.

Referring to fig. 3 of the specification, the T-shaped holes 64 are provided in a plurality and uniformly distributed at the bottoms of both ends of the gate type pipe 61 and arranged in a row in the front-rear direction.

Two rows of T type holes 64 to all be provided with T type spare 62 in every T type hole 64, when T type spare 62 supported tightly on the ice surface, made unmanned aerial vehicle whole more stable.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.