CN219134492U

CN219134492U - Shock-proof type unmanned aerial vehicle undercarriage

Info

Publication number: CN219134492U
Application number: CN202223004480.8U
Authority: CN
Inventors: 祝小梅; 郑永航; 赵珊; 何祎铖; 金礼芬
Original assignee: Sichuan Geely University
Current assignee: Sichuan Geely University
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-06-06
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a damping type unmanned aerial vehicle landing gear, which comprises a mounting seat, a buffer mechanism, a supporting frame, a plurality of supporting rods and a base, wherein the mounting seat is mounted on an unmanned aerial vehicle; the buffer mechanism comprises a buffer sleeve arranged at the bottom of the mounting seat, and a telescopic buffer rod which is sleeved in the buffer sleeve, can move in a telescopic manner along the length direction of the buffer sleeve and is connected with the supporting frame. The utility model has simple structure, scientific and reasonable design and convenient use, and the buffering mechanism is arranged on the landing gear of the unmanned aerial vehicle so as to buffer the ground acting force born by the unmanned aerial vehicle in the take-off and landing process and reduce the vibration and jolt of the unmanned aerial vehicle. Particularly, when the unmanned aerial vehicle collides with the ground at the moment of landing, the utility model can absorb and consume the collision energy born by the unmanned aerial vehicle, and prolong the service life of the unmanned aerial vehicle.

Description

Shock-proof type unmanned aerial vehicle undercarriage

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a shock-absorbing type unmanned aerial vehicle landing gear.

Background

The unmanned aerial vehicle undercarriage plays a vital role in the use process of the unmanned aerial vehicle, and supports the whole unmanned aerial vehicle when the unmanned aerial vehicle is parked. In general, the interaction of the unmanned aerial vehicle with the ground during take-off and landing, especially when the instantaneous speed of landing becomes zero, can lead to vibration and jolt of the unmanned aerial vehicle, which is extremely disadvantageous to the structural stability of the unmanned aerial vehicle. Therefore, it is necessary to provide a shock-absorbing unmanned aerial vehicle landing gear, which utilizes the landing gear to bear the force applied to the unmanned aerial vehicle by the ground when the shock-absorbing unmanned aerial vehicle interacts with the ground in the process of taking off and landing, so as to reduce or eliminate the structural stability problem caused by the influence of the ground acting force on the unmanned aerial vehicle.

Disclosure of Invention

The utility model aims to solve the technical problems that: the utility model provides a shock-absorbing unmanned aerial vehicle undercarriage to solve the vibrations jolt of fuselage when light unmanned aerial vehicle takes off and lands.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a damping type unmanned aerial vehicle landing gear comprises a mounting seat, a buffer mechanism, a supporting frame, a plurality of supporting rods and a base, wherein the mounting seat is mounted on an unmanned aerial vehicle; the buffer mechanism comprises a buffer sleeve arranged at the bottom of the mounting seat, and a telescopic buffer rod which is sleeved in the buffer sleeve, can move in a telescopic manner along the length direction of the buffer sleeve and is connected with the supporting frame.

Further, an air cavity is formed in the buffer sleeve, a telescopic through hole which is matched with the telescopic buffer rod and communicated with the air cavity is formed in the bottom end of the buffer sleeve, a piston which is matched with the inner wall of the air cavity is arranged on the telescopic buffer rod, and the bottom end of the telescopic buffer rod penetrates through the telescopic through hole to extend out of the buffer sleeve and is connected with the supporting frame.

Further, the pressure relief pipe communicated with the outside is connected to the inner top wall of the air cavity, and a safety valve is arranged on the pressure relief pipe.

Further, the bottom wall in the air cavity is connected with a vent pipe communicated with the outside.

Further, a filter screen is arranged on the vent pipe.

Further, a damper is arranged on the inner top wall of the air cavity.

Further, the damper is provided with first silicon rubber sheets which are distributed opposite to the piston.

Further, the top end face of the piston is provided with second silicon rubber sheets which are distributed opposite to the first silicon rubber sheets.

Further, an embedded groove is formed in the center of the bottom surface of the mounting seat, an embedded block matched with the embedded groove is arranged at the top end of the buffer sleeve, and the embedded block is fixed in the embedded groove through a bolt.

Further, the four bases are arranged, the bottom of each base is provided with a cushion pad made of butyl rubber materials, and the cushion pad touches the ground in a corrugated structure. Compared with the prior art, the utility model has the following beneficial effects:

the utility model has simple structure, scientific and reasonable design and convenient use, and the buffering mechanism is arranged on the landing gear of the unmanned aerial vehicle so as to buffer the ground acting force born by the unmanned aerial vehicle in the take-off and landing process and reduce the vibration and jolt of the unmanned aerial vehicle. Particularly, when the unmanned aerial vehicle collides with the ground at the moment of landing, the utility model can absorb and consume the collision energy born by the unmanned aerial vehicle, and prolong the service life of the unmanned aerial vehicle.

Drawings

Fig. 1 is a schematic diagram of a front view structure of the present utility model.

Fig. 2 is a schematic connection diagram of the buffer mechanism and the mounting base.

Fig. 3 is a schematic structural view of the buffering mechanism.

Fig. 4 is a top view of the present utility model.

Fig. 5 is a right side view of the present utility model.

Fig. 6 is a bottom view of the cushion.

Fig. 7 is a vertical cross-sectional view of the cushion pad.

1-base, 2-bracing piece, 3-support frame, 4-mount pad, 5-buffer rod, 6-buffer tube, 7-buffer pad, 8-inlay, 9-inlay groove, 10-first through hole, 11-and second through holes, 12-bolt, 13-air cavity, 14-piston, 15-damper, 16-relief tube, 17-relief valve, 18-breather tube, 19-filter screen, 20-first silicone rubber sheet, 21-second silicone rubber sheet, 22-flexible through hole, 23-first pole, 24-second pole.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; of course, it may be mechanically or electrically connected; in addition, the connection may be direct, indirect via an intermediate medium, or communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3.

In this embodiment 1, mount pad 4 is installed in unmanned aerial vehicle bottom, and support frame 3 is installed in buffer gear bottom, and bracing piece 2 is installed in support frame 3 bottom. The base 1, the support rod 2 and the support frame 3 are used for supporting the buffer mechanism, the mounting seat 4 and the unmanned aerial vehicle. The buffer mechanism is used for buffering ground acting force born by the unmanned aerial vehicle in the take-off and landing process, and vibration jolt of the unmanned aerial vehicle is relieved. Particularly, when the unmanned aerial vehicle falls and collides with the ground, the buffer mechanism can absorb and consume the collision energy born by the unmanned aerial vehicle, so that the damage of the unmanned aerial vehicle structure is slowed down, and the service life of the unmanned aerial vehicle is prolonged.

Example 2

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3.

In this embodiment 2, the telescopic buffer rod 5 is in clearance fit with the telescopic through hole 22, and when the base 1 touches the ground during the take-off and descending process of the unmanned aerial vehicle, the buffer sleeve 6 is pressed, and the relative movement occurs between the buffer sleeve 6 and the telescopic buffer rod 5. The cushion sleeve 6 moves downward along the telescopic cushion rod 5, and the telescopic cushion rod 5 moves upward along the air chamber 13. When the buffer sleeve 6 and the telescopic buffer rod 5 move relatively, the piston 14 on the telescopic buffer rod 5 continuously compresses air in the air cavity 13 along with the progress of the relative movement until the unmanned aerial vehicle is stopped on the ground. The air continuously applies pressure to the buffer sleeve 6 in the process of being continuously compressed, so that impact force generated by interaction of the unmanned aerial vehicle and the ground is buffered.

Example 3

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The pressure relief pipe 16 communicated with the outside is connected to the inner top wall of the air cavity 13, and the pressure relief pipe 16 is provided with a safety valve 17.

In embodiment 3 based on embodiment 2, in embodiment 3, the pressure relief pipe 16 communicating with the outside is connected to the inner top wall of the air chamber 13, and the pressure relief pipe 16 is provided with a safety valve 17. Thus, when the unmanned aerial vehicle abnormally drops, and the air in the air cavity 13 is instantaneously compressed to generate huge pressure, the safety valve 17 on the pressure relief pipe 16 is automatically opened, high-pressure air in the air cavity 13 is discharged, and the safety valve is closed until the pressure of the air in the air cavity 13 applied to the safety valve 17 is slightly lower than the normal working pressure of the safety valve 17. The safety valve is arranged to effectively prevent the explosion of the cylinder wall caused by long-term high pressure of the buffer sleeve 6.

Example 4

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The inner bottom wall of the air cavity 13 is connected with a vent pipe 18 communicated with the outside.

In this embodiment 4 based on embodiment 2, in this embodiment 4, some air enters the air chamber through the small gap between the telescopic buffer rod 5 and the telescopic through hole 22 to exchange with the air in the air chamber at the bottom of the piston 14. Since the amount of gas exchanged is small, it is insufficient to bring the gas pressure in the bottom air chamber of the piston 14 to the outside atmospheric pressure.

The inner bottom wall of the air cavity 13 is connected with the vent pipe 18 communicated with the outside, so that the air in the air cavity at the bottom of the piston 14 is circulated, the air pressure in the air cavity at the bottom of the piston 14 is always consistent with the outside atmospheric pressure, and when the unmanned aerial vehicle is suspended on the ground, under the action of high-pressure air between the top of the piston 14 and the air cavity 13 and the gravity of the telescopic buffer rod 5 and the piston 14, the telescopic buffer rod 5 and the piston 14 can gradually return to the original position, so that the next impact force of the unmanned aerial vehicle can be buffered normally.

The purpose of enabling the air pressure in the air cavity at the bottom of the piston 14 to be consistent with the external atmospheric pressure is to prevent the telescopic buffer rod 5 and the piston 14 from instantaneously resetting and impacting the buffer sleeve 6 when the unmanned aerial vehicle is suspended.

Example 5

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The inner bottom wall of the air cavity 13 is connected with a vent pipe 18 communicated with the outside. The vent pipe 18 is provided with a filter screen 19.

In this embodiment 5 based on embodiment 4, in this embodiment 5, the filter screen 19 is disposed on the vent pipe 18, and the filter screen 19 can filter out the foreign matters in the air, so as to prevent the foreign matters such as dust from entering the air cavity 13 and attaching to the inner wall of the air cavity 13, ensure that the piston 14 can slide smoothly in the air cavity 13, ensure that the air between the top of the piston 14 and the air cavity 13 can be continuously compressed, further continuously buffer the impact force applied by the unmanned aerial vehicle, and reduce the vibration and jolt of the unmanned aerial vehicle in the process of taking off and landing.

Example 6

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The inner top wall of the air cavity 13 is provided with a damper 15.

In embodiment 6, a damper 15 is provided on the inner top wall of the air chamber 13 in embodiment 6 based on embodiment 2. The unmanned aerial vehicle lands abnormally, and vibration motion exists in the process that the piston 14 collides with the inner top wall of the air cavity 13. The damper 15 is arranged on the inner top wall of the air cavity 13, so that the vibration motion is gradually stopped while the rigid collision between the piston 14 and the inner top wall of the air cavity 13 is avoided. When the piston 14 collides with the damper 15, the damper 15 has a damping effect, can prevent the vibration motion generated by the collision of the piston 14 and the damper 15, and prevents the unmanned aerial vehicle from vibrating and jolting under the influence of the vibration motion.

Example 7

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The inner top wall of the air cavity 13 is provided with a damper 15. The damper 15 is provided with a first silicon rubber sheet 20 which is distributed opposite to the piston 14.

In embodiment 7 based on embodiment 6, in embodiment 7, the damper 15 is provided with a first silicone rubber sheet 20 disposed opposite to the piston 14. In this way, the first silicone rubber sheet 20 can buffer the collision between the damper 15 and the piston 14, so as to avoid the damper 15 or the piston 14 from being damaged due to the direct collision between the damper 15 and the piston 14.

Example 8

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An air cavity 13 is formed in the sleeve 6, a telescopic through hole 22 which is matched with the telescopic buffer rod 5 and communicated with the air cavity 13 is formed in the bottom end of the buffer sleeve 6, a piston 14 which is matched with the inner wall of the air cavity 13 is arranged on the telescopic buffer rod 5, and the bottom end of the telescopic buffer rod 5 penetrates through the telescopic through hole 22 to extend out of the buffer sleeve 6 and is connected with the support frame 3. The inner top wall of the air cavity 13 is provided with a damper 15. The damper 15 is provided with a first silicon rubber sheet 20 which is distributed opposite to the piston 14. The top end surface of the piston 14 is provided with a second silicon rubber sheet 21 which is distributed opposite to the first silicon rubber sheet 20.

In this embodiment 8, based on embodiment 7, in this embodiment 8, a first silicone rubber sheet 20 is provided on the damper 15 so as to face the piston 14. The top end surface of the piston 14 is provided with a second silicon rubber sheet 21 which is distributed opposite to the first silicon rubber sheet 20. So, unmanned aerial vehicle is unusual to descend, and when damper 15 collided with piston 14, first silicon rubber piece 20 and second silicon rubber piece 21 can slow down the striking between damper 15 and the piston 14 together, prolongs the life of damper 15 and piston 14.

Example 9

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. An embedded groove 9 is formed in the center of the bottom surface of the mounting seat 4, an embedded block 8 matched with the embedded groove 9 is arranged at the top end of the buffer sleeve 6, and the embedded block 8 is fixed in the embedded groove 9 through bolts.

In this embodiment 9, on the basis of embodiment 1, a more preferable connection manner between the mounting seat 4 and the buffer sleeve 6 is provided, specifically: the top end of the buffer sleeve 6 is provided with an embedded block 8, the bottom of the mounting seat 4 is provided with an embedded groove 9 matched with the embedded block 8, and the embedded block 8 is embedded in the embedded groove 9. So designed for mount pad 4 can install on buffer sleeve 6 top to let unmanned aerial vehicle install in buffer gear top, so that when unmanned aerial vehicle descends, buffer gear plays a role, and buffering unmanned aerial vehicle and the impact force that ground interact produced alleviate unmanned aerial vehicle's vibrations jolt.

The first through hole 10 and the second through hole 11 are respectively formed in the bottoms of the embedded block 8 and the mounting seat 4, the embedded block 8 and the mounting seat 4 can be fixed through the first through hole 10 and the second through hole 11 by using the bolts 12, so that the connection between the buffer sleeve 6 and the mounting seat 4 is firmer, and meanwhile, the buffer sleeve 6 is convenient to install and detach.

Example 10

As shown in fig. 1-7, the damping type unmanned aerial vehicle landing gear provided by the utility model comprises a mounting seat 4 arranged on an unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat 4, a support frame 3 arranged on the buffer mechanism, a plurality of support rods 2 arranged on the support frame 3, and a base 1 arranged at the bottom of the support rods 2 and contacted with the ground; the buffer mechanism comprises a buffer sleeve 6 arranged at the bottom of the mounting seat 4, and a telescopic buffer rod 5 which is sleeved in the buffer sleeve 6, can move in a telescopic manner along the length direction of the buffer sleeve 6 and is connected with the support frame 3. Four bases 1 are arranged, a cushion pad 7 made of butyl rubber materials is arranged at the bottom of the base 1, and the cushion pad 7 is in a corrugated structure when touching the ground.

In this embodiment 10, the support frame 3 is i-shaped, and the support frame 3 includes a first rod 23 connected with the telescopic buffer rod 5, two second rods 24 respectively connected at two ends of the first rod 23, two ends of the second rod 24 are respectively connected with one support rod 2, and four bases 1 are provided, so that the balance of the whole landing gear is supported.

The buffer cushion 7 is arranged at the bottom of the base 1 and can be used for buffering impact force generated by the landing of the unmanned aerial vehicle and the ground impact. When the unmanned aerial vehicle falls, vibration motion exists between the cushion pad 7 and the ground, the cushion pad 7 made of butyl rubber is selected, and the cushion pad 7 can be used for a long time under the conditions of being subjected to ground friction force and being in vibration jolt by utilizing the strong wear resistance of the cushion pad 7. The bottom surface of blotter 7 is the ripple structure, has improved the roughness of the bottom surface of blotter 7 for unmanned aerial vehicle can park in ground steadily.

The damper 15 and the relief valve 17 used in the present utility model are conventionally known devices and can be directly purchased in the market, and the structure and control principle of the damper 15 and the relief valve 17 are conventionally known, and therefore, the structure and control principle of the damper 15 and the relief valve 17 are not described herein.

Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present utility model for illustrating the technical solution of the present utility model, but not limiting the scope of the present utility model; although the utility model 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; that is, even though the main design concept and spirit of the present utility model is modified or finished in an insubstantial manner, the technical problem solved by the present utility model is still consistent with the present utility model, and all the technical problems are included in the protection scope of the present utility model; in addition, the technical scheme of the utility model is directly or indirectly applied to other related technical fields, and the technical scheme is included in the scope of the utility model.

Claims

1. The damping type unmanned aerial vehicle landing gear is characterized by comprising a mounting seat (4) mounted on the unmanned aerial vehicle, a buffer mechanism arranged at the bottom of the mounting seat (4), a support frame (3) arranged on the buffer mechanism, a plurality of support rods (2) arranged on the support frame (3), and a base (1) mounted at the bottom of the support rods (2) and contacted with the ground; the buffer mechanism comprises a buffer sleeve (6) arranged at the bottom of the mounting seat (4), and a telescopic buffer rod (5) which is sleeved in the buffer sleeve (6) and can move in a telescopic manner along the length direction of the buffer sleeve (6) and is connected with the support frame (3).

2. The shock-absorbing type unmanned aerial vehicle landing gear according to claim 1, wherein an air cavity (13) is formed in the buffer sleeve (6), a telescopic through hole (22) which is matched with the telescopic buffer rod (5) and is communicated with the air cavity (13) is formed in the bottom end of the buffer sleeve (6), a piston (14) which is matched with the inner wall of the air cavity (13) is arranged on the telescopic buffer rod (5), and the bottom end of the telescopic buffer rod (5) penetrates through the telescopic through hole (22) to extend out of the buffer sleeve (6) and is connected with the supporting frame (3).

3. The shock-absorbing unmanned aerial vehicle landing gear according to claim 2, wherein the pressure relief pipe (16) communicated with the outside is connected to the inner top wall of the air cavity (13), and a safety valve (17) is arranged on the pressure relief pipe (16).

4. A shock-absorbing unmanned aerial vehicle landing gear according to claim 2, wherein the inner bottom wall of the air chamber (13) is connected with a vent pipe (18) communicating with the outside.

5. A shock-absorbing unmanned aerial vehicle landing gear according to claim 4, wherein the vent pipe (18) is provided with a screen (19).

6. A shock-absorbing unmanned aerial vehicle landing gear according to claim 2, wherein the upper inner wall of the air chamber (13) is provided with a damper (15).

7. The shock-absorbing unmanned aerial vehicle landing gear according to claim 6, wherein the damper (15) is provided with a first silicone rubber sheet (20) which is distributed opposite to the piston (14).

8. The shock-absorbing unmanned aerial vehicle landing gear according to claim 7, wherein the top end surface of the piston (14) is provided with second silicon rubber sheets (21) which are distributed opposite to the first silicon rubber sheets (20).

9. The shock-absorbing type unmanned aerial vehicle landing gear according to claim 1, wherein an embedded groove (9) is formed in the center of the bottom surface of the mounting seat (4), an embedded block (8) matched with the embedded groove (9) is arranged at the top end of the buffer sleeve (6), and the embedded block (8) is fixed in the embedded groove (9) through bolts.

10. The shock-absorbing unmanned aerial vehicle landing gear according to claim 1, wherein the number of the bases (1) is four, the bottom of the base (1) is provided with a cushion pad (7) made of butyl rubber materials, and the ground contact surface of the cushion pad (7) is of a corrugated structure.