CN204674822U - Alighting gear and use the unmanned vehicle of this alighting gear - Google Patents

Abstract

The utility model discloses a kind of unmanned vehicle and alighting gear thereof.Described unmanned vehicle comprises fuselage and alighting gear, and described alighting gear comprises feet.Described feet comprise be arranged at strut member on described fuselage and for cushioning the landing of described unmanned vehicle time the described alighting gear energy disperser of impact that is subject to, described energy disperser is arranged at described strut member one end away from described fuselage.The alighting gear of above-mentioned unmanned vehicle, the buffering effect when unmanned vehicle lands is better.

Description

Landing gear and unmanned aerial vehicle using the same

technical field

The utility model relates to a landing gear and an unmanned aerial vehicle using the landing gear.

Background technique

An unmanned aerial vehicle generally includes a fuselage and a landing gear mounted on the fuselage, and the landing gear includes at least two supporting legs. In order to reduce the overall weight of the unmanned aerial vehicle and ensure the stability of the unmanned aerial vehicle during flight, the support feet are generally formed by rigidly connecting a plurality of support rods to each other, and the support rods are connected to the aircraft. Body, as the support when the unmanned aerial vehicle lands. However, the rigidity of the supporting feet is relatively large, and when the UAV lands, its cushioning effect is limited.

Utility model content

In view of the above, it is necessary to provide a landing gear with a relatively good cushioning effect, and an unmanned aerial vehicle using the landing gear.

A landing gear is applied to an unmanned aerial vehicle, and the landing gear includes supporting feet. The supporting feet include an arm support for connecting the unmanned aerial vehicle and a buffer for buffering the impact of the landing gear when the unmanned aerial vehicle lands.

Further, the buffer is a hydraulic damper or an air damper

Further, one end of the support is a connection end, and the other end is a landing end, and the buffer is arranged at the landing end of the support.

Further, the support is provided with a connection part, and the connection part is used for detachable connection with the arm of the UAV.

Further, the supporting foot also includes a mounting seat for connecting the arm of the UAV, and the connecting part is detachably connected to the mounting seat.

Further, one of the connecting part and the mounting seat is provided with an internal thread, and the other of the connecting part and the mounting seat is provided with an external thread matching the internal thread, the The internal thread is screwed to the external thread;

Alternatively, one of the connecting portion and the mounting seat is provided with an elastic hook, and the other of the connecting portion and the mounting seat is provided with a slot that matches the elastic hook, so The elastic hook and the slot are engaged and connected with each other.

Further, the supporting foot also includes a reinforcing piece, one end of the reinforcing piece is arranged on the mounting base, and the other end is connected to the supporting piece; the mounting base, the reinforcing piece and the supporting piece are in the form of Tripod type structure.

Further, the reinforcing member includes an installation end disposed on the mounting base, and a support portion disposed on the installation end, extending toward the support and connected to the support.

Further, the installation end is connected to the installation seat through a fastener, and the installation end can rotate around the fastener to drive the support part to rotate relative to the installation seat.

Further, the reinforcement member further includes a clamping portion disposed on the support portion and clamped with the support component.

Further, the clamping portion is provided with a clamping hole, and the clamping portion is sleeved on the support member through the clamping hole.

Further, the supporting foot further includes a limiting member arranged on the supporting member, and the limiting member is opposed to the mounting base.

Further, the limiting member includes a sleeve portion fixedly sleeved on the support member and a limiting portion disposed on the sleeve portion, and the limiting portion is opposed to the mounting seat.

Further, the buffer includes a body disposed on the support and a movable part movably accommodated in the body, the movable part is connected with the body piston and partially protrudes out of the body and outside the support.

Further, the body is accommodated in the support, and the buffer also includes a positioning portion provided on the body, and the positioning portion bears against the end of the support;

Or/and, the body is provided with an elastic reset member, one end of the elastic reset member is connected to the body, and the other end is connected to the movable part.

Further, the supporting foot further includes a protection piece, which is sheathed on the support piece and covers the outside of the movable part.

Further, the protective piece is a protective sleeve made of rubber material.

Further, the supporting feet are arranged obliquely relative to the vertical direction.

Further, the angle formed by the support member and the vertical direction is greater than or equal to 100 degrees and less than or equal to 100 degrees.

An unmanned aerial vehicle, which includes a fuselage and the landing gear as described in any one of the above, the support is arranged on the fuselage, and the buffer is arranged at the end of the support away from the fuselage .

Further, the unmanned aerial vehicle further includes an arm arranged on the fuselage and a power device arranged on the arm, and the power device is used to provide flight power for the unmanned aerial vehicle.

Further, the power unit is arranged obliquely relative to the vertical direction;

Or/and, the support member is fixedly connected with the machine arm, or connected rotatably.

Further, the power device includes a driving element arranged on the arm and a propeller connected to the driving element, and the driving element is used to drive the propeller to rotate.

Further, the power device is arranged correspondingly to the support member.

The above-mentioned unmanned aerial vehicle, its landing gear is provided with buffer, and described buffer is positioned at the bottom of described support foot, and when described unmanned aerial vehicle lands, described buffer first receives the impact force from ground, makes described activity The part slides relative to the body, thereby playing the role of shock absorption and energy absorption, and its cushioning effect is relatively good, which reduces the damage caused by the impact of landing on the whole of the UAV.

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of an unmanned aerial vehicle in an embodiment of the present invention.

FIG. 2 is an enlarged schematic diagram of area II of the UAV shown in FIG. 1 .

FIG. 3 is an exploded schematic diagram of a part of the structure of the unmanned aerial vehicle shown in FIG. 2 .

Description of main component symbols

UAV 100 body 20 body twenty two Arm twenty four powerplant 40 Driver 42 propeller 44 landing gear 60 support feet 61 mount 62 supporting item 64 Connection 641 Installation Department 643 Limiting parts 65 Set Department 651 limit part 653 buffer 66 ontology 661 Positioning department 663 Activities section 665 Protection 68 Reinforcement 69 installation side 691 fastener 6911 Support 693 Holder 695 Hold hole 6951

The following specific embodiments will further illustrate the utility model in conjunction with the above-mentioned accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1 , an unmanned aerial vehicle 100 according to an embodiment of the present invention includes a body 20 , a power unit 40 and a landing gear 60 disposed on the body 20 . The power unit 40 is used to provide the flight power of the UAV 100 , and the landing gear 60 is arranged at the bottom of the body 20 as a buffer and support for the UAV 100 when it lands.

The body 20 includes a fuselage 22 and an arm 24 disposed on the fuselage 22 . An electronic control module for controlling the power unit 40 is disposed in the fuselage 22 . The machine arm 24 is used to carry the power device 40 .

In this embodiment, the number of the arms 24 is four, and the four arms 24 are arranged around the fuselage 22 and extend in a direction away from the fuselage 22 .

In this embodiment, the number of the power devices 40 is four, and each of the power devices 40 is disposed at the end of one arm 24 . The power device 40 includes a driving member 42 arranged on the arm 24 and a propeller 44 arranged on the driving member 42, and the driving member 42 can drive the The propeller 44 rotates to drive the UAV 100 to fly. The driving member 42 may be a rotating driving member such as a brush motor, a brushless motor, etc., to drive the propeller 44 to rotate.

Please refer to FIG. 2 and FIG. 3 at the same time, the landing gear 60 is disposed on the arm 24 and is located on a side of the arm 24 relatively away from the power device 40 . In this embodiment, the landing gear 60 includes four supporting feet 61 , and each supporting foot 61 is arranged on one of the arms 24 . The supporting foot 61 includes a mount 62 disposed on the arm 24 , a support 64 disposed on the mount 62 , a buffer 66 and a protection 68 disposed on the support 64 .

The mounting seat 62 is fixedly sleeved on the end of the machine arm 24 for mounting the power device 40 and the supporting member 64 . The driving member 42 of the power device 40 is mounted on one side of the mounting base 62 . Internal threads (not shown) are formed on the mounting base 62 , and the internal threads are used to connect with the supporting member 64 .

The supporting member 64 is mounted on a side of the mounting base 62 away from the power device 40 . In this embodiment, the support member 64 is substantially in the shape of a hollow rod, which is substantially perpendicular to the arm 24 . Two ends of the support member 64 are respectively a connecting end and a landing end, the connecting end is connected to the machine arm 24 , and the landing end is disposed away from the machine arm 24 . A connecting portion 641 is disposed on a connecting end of the supporting member 64 , and the connecting portion 641 is used for connecting with the mounting base 62 . External threads are formed on the connecting portion 641 , which are inserted into the mounting seat 62 and detachably connected to the mounting seat 62 through the external threads. A mounting portion 643 is disposed on the landing end of the support member 64 , and the mounting portion 643 is used for mounting the buffer 66 .

In the illustrated embodiment, the machine arm 24 is arranged horizontally, and the included angle between it and the horizontal direction is 0 degree; The included angle is such that the supporting force of the plurality of supporting feet 61 on the body 20 forms a certain included angle with the ground, and the support of the supporting feet 61 is more stable. Specifically, the included angle between the support member 64 and the vertical direction is greater than or equal to 1 degree and less than or equal to 5 degrees. Preferably, the included angle between the supporting member 64 and the vertical direction is 3 degrees.

A limiting member 65 is disposed on the supporting member 64 adjacent to the connecting portion 641 , and the limiting member 65 is used to limit the installation position of the supporting member 64 relative to the mounting seat 62 . The limiting member 65 includes a sleeve portion 651 and a limiting portion 653 disposed on the sleeve portion 651 .

The sleeve portion 651 is substantially cylindrical, sleeved on the support member 64 , and located on a side of the connecting portion 641 away from the mounting seat 62 . In this embodiment, the sleeve portion 651 is relatively fixedly connected with the support member 64 through an interference fit. The limiting portion 653 is formed at an end of the sleeve portion 651 close to the mounting seat 62 , and is substantially flange-shaped. After the support member 64 is screwed onto the mounting base 62 through the connecting portion 641, the limiting portion 653 is held against the mounting base 62 to limit the mounting position of the support member 64 relative to the mounting base 62. The installation position of seat 62.

The buffer 66 is disposed on the mounting portion 643 of the supporting member 64 and partially accommodated in the supporting member 64 . In this embodiment, the buffer 66 is a hydraulic damper, which is used to buffer the impact of the external force on the whole of the UAV 100 . The buffer 66 includes a body 661 , a positioning portion 663 and a movable portion 665 disposed on the body 661 . It can be understood that the buffer 66 can also be a pneumatic damper, or a gas-liquid mixing damper, and the like.

The body 661 is fixedly accommodated in the support member 64 . The body 661 is roughly a hollow structure filled with damping fluid. The positioning portion 663 is disposed at one end of the body 661 and abuts against the end of the supporting member 64 . The positioning portion 663 is used to limit the mounting position of the buffer 66 relative to the supporting member 64 .

In this embodiment, the movable part 665 is a piston rod. One end of the movable part 665 is slidably inserted into the body 661 and connected with the inner piston of the body 661 . The other end of the movable portion 665 protrudes out of the body 661 . When one or both of the movable part 665 and the main body 661 is impacted by an external force, the movable part 665 can slide relative to the main body 661, and the change of the relative position of the two can absorb the external force. impact, so as to play a buffering role when the entire supporting foot 61 is impacted by an external force. Further, the body 661 is also provided with a reset member such as an elastic body. One end of the reset member is connected to the body, and the other end is connected to the movable part 665; Under the action of the reset member, the movable part 665 returns to the initial position.

The protection member 68 is disposed at the end of the support member 64 and covers the movable portion 665 . The protector 68 is used for buffering the impact of the external force on the support foot 61, and as a barrier for the buffer 66 to protect the buffer 66 from being polluted or corroded by the external environment, so as to prolong the life of the buffer 66. service life.

In this embodiment, the protective member 68 is a protective sleeve made of rubber or/and silicone material, which is sheathed on the movable part 665 and fixedly sheathed on the end of the supporting member 64 . When the unmanned aerial vehicle 100 lands on the ground, the supporting feet 61 are subjected to the impact force from the ground, and the protection member 68 is elastically deformed by the pressure of the ground, thereby compressing the movable part 665, so that The movable part 665 slides relative to the main body 661, thereby playing the role of shock absorption and energy absorption.

The mounting base 62 and the supporting member 64 are also provided with a reinforcing piece 69 for reinforcing the overall structure of the supporting foot 61 . The reinforcing member 69 protects the mounting end 691 , the supporting portion 693 disposed on the mounting end 691 and the locking portion 695 disposed on the supporting portion 693 .

The installation end 691 is fixedly installed on the installation seat 62 and connected to the installation seat 62 by a fastener 6911 such as a screw (please refer to FIG. 2 ). The fastener 6911 is disposed on a side of the mounting end 691 close to the supporting member 64 . Under the action of external force, the installation end 691 can rotate around the axis of the fastener 6911 at a certain angle, so that the user can adjust the installation position of the reinforcement 69 .

The supporting portion 693 is formed on a side of the mounting end 691 close to the supporting member 64 , extends toward the supporting member 64 , and is arranged at a predetermined angle with the supporting member 64 .

The clamping portion 695 is formed at an end of the supporting portion 693 close to the supporting member 64 , and is sheathed and clamped on the supporting member 64 . Specifically, in the illustrated embodiment, the clamping portion 695 is formed with a clamping hole 6951, and the clamping hole 6951 is an incomplete circular hole, so that the clamping portion 695 can pass through the clamping hole. 6951 is sleeved on the support member 64, or the support member 64 can pass through the clamping hole 6951 and screwed with the mounting base 62, and the clamping part 695 can support the support The installation of piece 64 plays a guiding role. The mounting base 62 , the supporting member 64 and the reinforcing member 69 are generally in the form of a tripod-shaped connection structure, so that the overall structure of the supporting leg 61 is firm and not easily deformed or displaced.

When the mounting end 691 slightly rotates around the axis of the fastener 6911 under the action of an external force, the supporting part 693 can drive the locking part 695 to rotate a predetermined angle relative to the mounting seat 62, so that the The clamping portion 695 can be clamped on the supporting member 64 . Even if there is a certain assembly error between the parts of the support foot 61, the assembly relationship between the reinforcement 69 and the support 64 can be adjusted by rotating the reinforcement 69, so that the undercarriage 60 is easier to assemble.

Above-mentioned UAV 100, its landing gear 60 is provided with buffer 66, and described buffer 66 is positioned at the bottom of described support foot 61, and when described UAV 100 lands, described buffer 66 first receives the impact from the ground. The impact force makes the movable part 665 slide relative to the main body 661, thereby playing the role of shock absorption and energy absorption, and its buffer effect is relatively good, which reduces the damage caused by the landing impact to the UAV 100 as a whole.

In addition, the support member 64 is detachably connected with the mounting seat 62 through threaded connection, so that the landing gear 60 is easy to assemble or disassemble.

It can be understood that the number of the arms 24 can be one or more, for example, two, three, six and so on. Likewise, the number of the power device 40 may also be one or more.

It can be understood that the buffer 66 can be installed at other positions on the support member 64 . For example, the buffer 66 may be disposed between the mounting seat 62 and the supporting member 64 . Specifically, the mounting base 62 is fixedly connected to one of the main body 661 and the movable part 665, the support member 64 is connected to the other of the main body 661 and the movable part 665, and passes through the The connecting portion 641 is screwed with the other one of the main body 661 and the movable portion 665 . For another example, the support member 64 can be designed as a support rod with two continuous support parts, one of which is installed on the mounting base 62, and the other support part is connected to the mounting base 62 through the buffer 66. on one of the supports.

It can be understood that the connection manner between the support member 64 and the installation seat 62 is not limited to the connection manner described above, and other mechanical connection manners may be adopted. For example, an internal thread is formed on the connecting portion 641, and an external thread connecting portion is formed on the mounting seat 62 corresponding to the internal thread; the internal thread is screwed with the external thread connecting portion, so that the The supporting member 64 is fixedly installed with the mounting base 62 . For another example, an engaging portion is formed on the connecting portion 641, a matching portion is formed on the mounting base 62 corresponding to the engaging portion, and one of the engaging portion and the engaging portion is an elastic hook. The other is a slot; the engaging portion and the matching portion are engaged with each other, so that the support member 64 and the mounting seat 62 are fixedly installed together.

It can be understood that the mounting base 62 can be omitted, and the support 64 is directly installed on the arm 24, and the two ends of the reinforcement 69 are respectively connected to the arm 24 and the support. On the member 64; wherein, the support member 64 can be fixedly connected with the machine arm 24 or rotatably connected.

The above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalent Any replacement should not depart from the spirit and scope of the technical solutions of the present utility model.

Claims (22)

1. an alighting gear, is applied in unmanned vehicle, and described alighting gear comprises feet; It is characterized in that: described feet comprises the horn strut member for connecting described unmanned vehicle and the energy disperser for cushioning the impact that described alighting gear is subject to when described unmanned vehicle lands.

2. alighting gear as claimed in claim 1, is characterized in that: described energy disperser is hydraulic damper or air valve damper.

3. alighting gear as claimed in claim 1, is characterized in that: described strut member one end is coupling end, and one end is the end that lands in addition, and described energy disperser is arranged at the landing end of described strut member.

4. alighting gear as claimed in claim 3, is characterized in that: described strut member is provided with connecting portion, and described connecting portion is used for removably being connected with the horn of described unmanned vehicle.

5. alighting gear as claimed in claim 4, is characterized in that: described feet also comprises the mount pad of the horn for connecting described unmanned vehicle, and described connecting portion is removably connected on described mount pad.

6. alighting gear as claimed in claim 5, it is characterized in that: one in described connecting portion and described mount pad is provided with negative thread, another in described connecting portion and described mount pad is provided with the outside thread matched with described negative thread, and described negative thread is screwed with described outside thread and is connected;

Or one in described connecting portion and described mount pad is provided with elastic clamping hook, and another in described connecting portion and described mount pad is provided with the draw-in groove matched with described elastic clamping hook, and described elastic clamping hook mutually holds with described draw-in groove and is connected.

7. alighting gear as claimed in claim 5, it is characterized in that: described feet also comprises reinforcing member, described reinforcing member one end is arranged on described mount pad, and the other end is connected on described strut member; Described mount pad, described reinforcing member and described strut member are the structure of Tripod.

8. alighting gear as claimed in claim 7, is characterized in that: described reinforcing member comprises the installation end be arranged on described mount pad, and is arranged at described installation end and extends and the support portion be connected on described strut member to described strut member.

9. alighting gear as claimed in claim 8, it is characterized in that: described installation end is connected on described mount pad by a fastener, described installation end can rotate relative to described mount pad to drive described support portion around described fastener rotation.

10. alighting gear as claimed in claim 8, is characterized in that: described reinforcing member also comprises and being arranged on described support portion and the holding section held mutually with described strut member.

11. alighting gears as claimed in claim 10, it is characterized in that: described holding section is provided with holding hole, described holding section is sheathed on described strut member by described holding hole.

12. alighting gears as claimed in claim 5, it is characterized in that: described feet also comprises the locating part be arranged on described strut member, described locating part and described mount pad offset.

13. alighting gears as claimed in claim 12, it is characterized in that: described locating part comprises the limiting section that fixed cover is located at the sleeved part on described strut member and is arranged in described sleeved part, described limiting section and described mount pad offset.

14. alighting gears as claimed in claim 1, it is characterized in that: described energy disperser comprises the body be arranged on described strut member and the movable part be housed in movably in described body, described movable part is connected with described body piston and partly protrudes out outside described body and described strut member.

15. alighting gears as claimed in claim 14, is characterized in that: described body is contained in described strut member, and described energy disperser also comprises the location division be arranged on described body, and described location division is held in the end of described strut member;

And/or be provided with elastic reset part in described body, described elastic reset part one end is connected on described body, and the other end is connected on described movable part.

16. alighting gears as claimed in claim 14, is characterized in that: described feet also comprises guard member, and described guard member to be sheathed on described strut member and to be coated on outside described movable part.

17. alighting gears as claimed in claim 16, is characterized in that: described guard member is the protecting sleeve that elastomeric material is made.

18. alighting gears according to any one of claim 1 ~ 17, is characterized in that: described feet is obliquely installed relative to vertical direction.

19. alighting gears as claimed in claim 18, is characterized in that: formed by described strut member and vertical direction, angle is more than or equal to 1 degree and is less than or equal to 5 degree.

20. 1 kinds of unmanned vehicles, it comprises fuselage, it is characterized in that: described unmanned vehicle also comprises the alighting gear according to any one of claim 1 ~ 19, described strut member is arranged on described fuselage, and described energy disperser is arranged at described strut member one end away from described fuselage.

21. unmanned vehicles as claimed in claim 20, it is characterized in that: described unmanned vehicle also comprises the horn be arranged on described fuselage and the engine installation be arranged on described horn, described engine installation is with thinking that described unmanned vehicle provides flying power.

22. unmanned vehicles as claimed in claim 21, is characterized in that: described engine installation is obliquely installed relative to vertical direction;

And/or described strut member is fixedly connected with described horn, or is rotatably connected;

And/or described engine installation comprises the actuator be arranged on described horn and the screw propeller be connected on described actuator, described actuator is in order to drive described propeller rotational;

And/or described engine installation is corresponding with described strut member to be arranged.