WO2019052011A1

WO2019052011A1 - Propeller protection cover and unmanned aerial vehicle

Info

Publication number: WO2019052011A1
Application number: PCT/CN2017/112688
Authority: WO
Inventors: 郭晓凯; 彭涛
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-09-15
Filing date: 2017-11-23
Publication date: 2019-03-21
Also published as: CN110352163A; CN207496929U

Abstract

Provided is a propeller protection cover, comprising a latching mechanism (10) and a protection cover main body (20) connected to the latching mechanism (10), wherein the latching mechanism (10) comprises a clamping member (11) used for clamping an unmanned aerial vehicle arm (1) and a locking member (12) used for locking the clamping member (11); the clamping member (11) is capable of clamping or loosening the unmanned aerial vehicle arm (1), and when the clamping member (11) clamps the unmanned aerial vehicle arm (1) and when the locking member (12) is locked, the clamping member (11) cooperates with the locking member (12) to clamp the unmanned aerial vehicle arm (1). The propeller protection cover is convenient to disassemble and assemble, and has good stability, and during a flying process of an unmanned aerial vehicle, the propeller protection cover is capable of effectively preventing the propeller from being damaged by other objects. Further provided is an unmanned aerial vehicle using the propeller protection cover.

Description

Propeller cover and drone

Technical field

The invention relates to the technical field of drone safety, in particular to a propeller protection cover and a drone using the propeller protection cover.

Background technique

Unmanned Aerial Vehicle (UAV) is an unmanned aerial vehicle that is operated by radio remote control equipment or its own program control device. The drone is widely used because of its low cost and good cost-effectiveness. The characteristics of casualties, strong survivability and good maneuverability are extremely important in both the modern military field and the civilian field, and have broad development prospects.

The drone generally includes a support system (rack, arm, etc.), a power system (motor, propeller, etc.) and a flight control system. The support system is used to carry the power system and the flight control system. During the flight of the drone, Unauthorized operation caused by improper control operation or environmental impact often causes the drone to lose control. When the drone is out of control, the high-speed rotating propeller can easily rub or collide with other rigid objects, causing the drone to be damaged, or Damage to people and objects in the flight area, so it is necessary to provide a protective cover for the propeller, and the existing propeller protection cover has the problem of troublesome disassembly and assembly and poor stability.

Summary of the invention

Based on the above background, a propeller protective cover capable of effectively protecting the unmanned aerial propeller and a drone using the propeller protective cover are provided, which is convenient to disassemble and has good stability.

The propeller protection cover provided by the present invention comprises a locking mechanism and a protection cover body connected to the locking mechanism, the locking mechanism comprising a clamping member for clamping the arm of the drone and for locking the clamp Hold a locking member capable of clamping or releasing the drone arm, the gripping member clamping the drone arm and the locking member being locked The clamping member and the locking member cooperate to clamp the UAV arm.

Further, the clamping member includes a clamping body and a first connecting portion and a second connecting portion connected to the clamping body, the locking member is engaged with the first connecting portion and the second connecting portion Locking or loosening the clamping member and the unmanned machine arm, the locking member comprises a knob, a screw and a nut, the knob is connected with the screw and the screw rotates axially relative to the knob The knob and the screw are disposed on the first connecting portion, and the nut is disposed on the second connecting portion and realizes tight adjustment between the first connecting portion and the second connecting portion by cooperation with the screw.

Further, one end of the screw connected to the knob is provided with a cutting plane, the knob is provided with a hole-shaped axial mounting hole, and one end of the screw setting the cutting plane is inserted into the axial mounting hole, thereby realizing The rotation of the screw relative to the knob about the axial direction is limited.

Further, the locking member further includes a fixing member disposed at one end of the knob and locked with one end of the screw to achieve a fixed connection between the screw and the knob.

Further, the locking member further includes an elastic member that generates compression deformation in the axial direction when the screw is engaged with the nut.

Further, the knob is provided with an accommodating portion extending in the axial direction, the first connecting portion is provided with a through hole through which the screw is bored, and the inner side wall of the through hole is formed along the circumferential direction of the through hole Holding the flange, one end of the elastic member abuts against the end surface of the receiving portion, and the other end abuts against the abutting flange of the inner wall of the through hole.

Further, the screw protrudes circumferentially from the limiting flange, and the knob and the elastic member are located at one side of the resisting flange inside the through hole of the first connecting portion, and the limit of the screw A flange is located on the other side of the abutment flange.

Further, the knob includes a guiding portion and an operating portion, the receiving portion is recessed from an end surface of the guiding portion along an axial direction of the knob, and an outer circumferential dimension of the guiding portion and an inner diameter of the through hole of the first connecting portion Matching, the outer peripheral dimension of the operating portion is larger than the outer peripheral dimension of the guiding portion.

Further, the nut is embedded in the second connecting portion and is one with the second connecting portion Body structure.

Further, at least one of the first connecting portion and the second connecting portion is rotatably coupled to the clamping body.

Further, the inner wall of the clamping body is provided with an elastic cushion layer.

Further, the first connecting portion further includes a first auxiliary positioning portion, and the second connecting portion includes a second auxiliary positioning portion corresponding to the first auxiliary positioning portion, when the first connecting portion and the second portion When the connecting portion is locked, the first auxiliary positioning portion and the second auxiliary positioning portion form an auxiliary positioning structure, and the auxiliary positioning structure and the clamping body realize positioning of the propeller protection cover in a plurality of directions.

The invention provides a drone, the drone includes a machine arm and a power component disposed on the arm, the power component includes a motor and a propeller, and the drone further includes the propeller protection cover The propeller protection cover is disposed on the arm, and the protection cover body of the propeller protection cover is disposed around the motor.

The propeller protection cover provided by the invention has the advantages of convenient disassembly and assembly and good stability. The propeller protection cover can effectively protect the propeller from being damaged by other objects while the UAV is in flight, and also avoids the high-speed rotation of the propeller to the people and objects in the flight area. cause some damages.

DRAWINGS

1 is an overall structural view of a propeller protection cover according to an embodiment of the present invention;

2 is a structural diagram of a locking mechanism in a locked state according to an embodiment of the present invention;

3 is an exploded view of a clamping member according to an embodiment of the present invention;

Figure 4 is a partial cross-sectional view of Figure 2 of the embodiment of the present invention;

Figure 5 is a structural view of a screw provided by an embodiment of the present invention;

6 is a structural diagram of a knob provided by an embodiment of the present invention;

Figure 7 is an exploded view of a locking member according to an embodiment of the present invention;

Figure 8 is a partial cross-sectional view showing a latch mechanism according to another embodiment of the present invention;

FIG. 9 is a partial structural diagram of a drone according to an embodiment of the present invention.

Description of the reference signs:

1 arm

2 motor

3 propeller cover

4 support stand

10 locking mechanism

11 clamping parts

110 clamping body

1101 first rotating sleeve

1102 second rotating sleeve

1103 tubular connection

111 first connection

1111 third rotating sleeve

1112 First auxiliary positioning department

1113 Resisting flange

112 second connection

1121 fourth rotating sleeve

1122 Second auxiliary positioning unit

113 first shaft

114 second shaft

115 elastic cushion layer

12 locking parts

120 knob

1201 guide

1202 Operation Department

1203 Housing Department

121 screw

1211 cutting plane

1212 limit flange

122 nuts

123 fixing parts

124 elastic parts

20 protective cover body

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention.

The phrase "embodiment" is used herein to mean that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the invention; The same embodiments are not independent or alternative embodiments that are mutually exclusive with other embodiments; those skilled in the art have explicitly and implicitly understood that the embodiments described herein may be in accordance with other embodiments. Combine.

Please refer to FIG. 1 , which illustrates a propeller protection cover provided by the present invention. The propeller protection cover includes a locking mechanism 10 and a protective cover main body 20 connecting the locking mechanism 10 . The locking mechanism 10 includes a clamping mechanism 10 for clamping a clamping member 11 of the machine arm and a locking member 12 for locking the clamping member 11, the clamping member 11 can clamp or release the UAV arm, and the clamping member 11 holds the UAV arm When the locking member is locked, the clamping member 11 and the locking member 12 cooperate to clamp the UAV arm.

As an alternative to the embodiment of the present invention, the protective cover main body 20 is a special-shaped tubular structure, and a material with high specific strength is selected, and the protective cover main body 20 can form a protective barrier around the moving area of the propeller, and an optional manner is protection. The cover body 20 adopts a profiled carbon fiber tube integrally formed of carbon fiber material, and the carbon fiber material has high specific strength and can resist strong impact, especially for application. Large-scale drones can withstand higher impact strength than engineering materials such as plastics, and have a lighter weight, which reduces the load on the drone while providing better protection to the drone; an optional The protective cover main body 20 adopts a profiled carbon fiber composite pipe integrally formed from a carbon fiber composite material, such as a carbon fiber pipe mixed with glass fibers; in other embodiments, the protective cover main body 20 may also be made of other materials with higher specific strength or different. The shape structure is not uniquely defined herein for the material and shape structure of the boot body 20.

Referring to FIG. 2 and FIG. 3 together, FIG. 2 is a structural view showing the locking member 12 in the locking mechanism 10 locking the clamping member 11, and FIG. 3 is an exploded view of the clamping member 11; 11 includes a clamping body 110 and a first connecting portion 111 and a second connecting portion 112 connected to the clamping body 110. The locking member 12 cooperates with the first connecting portion 111 and the second connecting portion 112 and the clamping member 11 and The drone arm is locked or loosened.

At least one of the first connecting portion 111 and the second connecting portion 112 is rotatably coupled to the clamping body 110, and the first connecting portion 111 and the second connecting portion 112 are rotatably coupled to the clamping body 110 as an example for illustration. In this embodiment, the radial direction of the clamping body 110 is U-shaped or C-shaped (of course, other shaped structures are also possible), and the opposite ends of the clamping body 110 are provided with a first rotating sleeve 1101 and The first rotating part 1102 and the second connecting part 112 are respectively provided with a third rotating sleeve 1111 and a fourth rotating sleeve 1121, wherein the first rotating sleeve 1101 and the third rotating sleeve 1111 pass through A rotating shaft 113 realizes a rotational connection, and the second rotating sleeve 1102 and the fourth rotating sleeve 1121 are rotationally connected by the second rotating shaft 114, so that the first connecting portion 111 and the second connecting portion 112 can move toward the other side or move away from each other. When the propeller guard is mounted on the arm of the drone, the first connecting portion 111 and the second connecting portion 112 are first unfolded relative to the clamping body 110, so that the clamping body 110 is clamped to the UAV arm, and then the first arm is closed. Connection part 111 and second connection Section 112, the first connecting portion 111 second connecting portion 112 and the nip, the lock 12 through the first connecting portion 111 and the second locking member portion 112 are connected.

It can be understood that only the first connecting portion 111 or only the second connecting portion 112 can be rotatably connected with the clamping body 110, and the other one is integrated with the clamping body 110. Further, the first connecting portion 111, the second connecting portion 112 and the clamping body 110 can be integrated, and the first connection is ensured. At least one of the connecting portion 111 and the second connecting portion 112 can be elastically deformed. When the clamping member 11 needs to be sleeved on the arm, the first connecting portion 111 and/or the second connecting portion 112 are relatively clamped. The body 110 is elastically deformed, and the clamping body 110 is sleeved on the arm.

The inner wall of the clamping body 110 is further provided with an elastic cushion layer 115. The elastic cushion layer 115 is attached to the inner wall surface of the clamping body 110, and its shape is adapted to the shape of the inner wall of the clamping body 110. When the locking member 12 is in the clamping state, the elastic pad layer 115 makes the clamping body 110 and the UAV arm closer together on the one hand, and can provide buffering on the other hand, avoiding the locking mechanism 10 to the unmanned The machine arm causes wear.

In other embodiments, the first connecting portion 111 further includes a first auxiliary positioning portion 1112, and the second connecting portion 112 includes a second auxiliary positioning portion 1122 corresponding to the first auxiliary positioning portion 1112, and the support is provided on the arm. The unmanned aerial vehicle of the tripod, when the first connecting portion 111 and the second connecting portion 112 are locked, the first auxiliary positioning portion 1112 and the second auxiliary positioning portion 1122 form an auxiliary positioning structure for clamping the supporting tripod, and assisting positioning The structure can further limit the movement of the clamping body 110, and realize the positioning of the clamping body 110 in a plurality of directions, in particular, the positioning of the clamping body 110 in the circumferential direction and the axial direction of the UAV arm; as shown in FIG. In this embodiment, the first auxiliary positioning portion 1112 and the second auxiliary positioning portion 1122 are arch portions formed by extending outwardly from one ends of the first connecting portion 111 and the second connecting portion 112, respectively, as an optional inside the arch portion. An auxiliary lining layer is provided to make the auxiliary positioning structure and the supporting foot frame more closely cooperate, and at the same time provide buffer for the auxiliary positioning structure and the supporting foot frame.

In other embodiments, the inner wall of the clamping body 110 is provided with a third auxiliary positioning portion (not shown), such as a protrusion or a groove, and the third auxiliary positioning portion is corresponding to the corresponding positioning structure on the arm of the drone. Cooperating, the movement of the clamping body 110 along the circumferential and axial directions of the arm of the unmanned aircraft is restricted, and the stability of the propeller protection cover is improved.

In the present embodiment, the clamping body 110 is directly connected to the protective cover main body 20. When the protective cover main body 20 has a deformed tubular structure, the two end portions thereof are respectively connected to the opposite outer walls of the clamping body 110.

In other embodiments, the opposite outer wall of the clamping body 110 can partially extend outwardly from the tubular connecting portion 1103, and the two ends of the protective cover main body 20 are connected with the corresponding tubular connecting portion 1103 on the clamping body 110 so that the clip It is more convenient to connect the main body 110 and the protective cover main body 20, in order to improve protection The stability of the cover can also be arranged obliquely on the outer wall of the clamping body 110, so that the connection area between the tubular connecting portion 1103 and the outer wall can be increased, so that the protective cover is connected to the clamping body 110 and has a higher height. In order to further improve the stability, the two tubular connecting portions 1103 can also be shifted by a certain distance in the axial direction of the clamping body 110. Since the carbon fiber tube has high requirements on machining, when the protective cover main body 20 is selected from the shaped carbon fiber tube, the protective cover main body 20 and the clamping body 110 are mainly connected by means of gluing or double injection molding, of course, The connection can be realized by means of socketing, screwing, etc., and can be freely selected according to the material selection of the protective cover main body 20.

Referring to FIG. 4, FIG. 4 is a partial cross-sectional view of FIG. 2, the locking member 12 includes a knob 120, a screw 121 and a nut 122. The knob 120 and the screw 121 are connected to the first connecting portion 111, and the nut 122 is disposed at the second portion. The connecting portion 112 realizes the connection of the first connecting portion 111 and the second connecting portion 112 by the cooperation with the screw 121, and realizes the tight adjustment between the first connecting portion 111 and the second connecting portion 112.

The rotation of the screw 121 relative to the knob 120 in the axial direction is limited. Optionally, referring to the structural diagram of the screw 121 shown in FIG. 5, one end of the screw 121 connected to the knob 120 is provided with a cutting plane 1211, and the knob 120 is provided with a hole. The axially-fitted hole is formed, and one end of the screw 121 is provided with the cutting plane 1211 inserted into the axial mounting hole to realize the rotation limit of the screw 121 relative to the knob 120 in the axial direction.

In other embodiments, the locking member 12 further includes a fixing member 123. The fixing member 123 is disposed at one end of the knob 120 and is locked with one end of the screw 121. The screw 121 is connected to one end of the knob 120 to provide an axial blind hole. The fixing member 123 is a fixed screw or other snap member. The fixing member 123 can be a fixed screw or a rotary member.

In the present embodiment, the first connecting portion 111 defines a through hole through which the screw 121 is bored, the second connecting portion 112 defines a through hole through which the nut 122 is bored, and is disposed on the inner wall of the through hole of the second connecting portion 112. a boss, the nut 122 is detachably disposed on a side of the boss away from the occlusal surface of the first connecting portion 111 and the second connecting portion 112, and the screw 121 passes through the through hole of the first connecting portion 111 to cooperate with the nut 122 to realize the first The connection between the connecting portion 111 and the second connecting portion 112 connects the rear nut 122 against the boss on the inner wall of the through hole of the second connecting portion 112. Since the nut 122 can be separated from the first connecting portion 111, when the nut is separated 122 is easy to replace when worn; in other embodiments, the nut 122 can be embedded in the second connecting portion 112 and integrated with the second connecting portion 112, so that the locking member can be obtained from the viewpoint of convenient disassembly and assembly. The first connecting portion 111 and the second connecting portion 112 of the holding member 11 are more easily locked or unlocked.

Optionally, referring to FIG. 4 and FIG. 6 , the knob 120 includes a guiding portion 1201 and an operating portion 1202 . The outer circumferential dimension of the guiding portion 1201 is matched with the inner diameter of the through hole of the first connecting portion 111 , so that the guiding portion 1201 can be first. The inside of the through hole of the connecting portion 111 moves. The outer peripheral dimension of the operating portion 1202 is larger than the outer peripheral dimension of the guiding portion 1201, so that a step is formed between the operating portion 1202 and the guiding portion 1201. When the guiding portion 1201 moves in the through hole of the first connecting portion 111, the operating portion 1202 cannot be inserted. The through hole plays a certain limit role.

In other embodiments, referring to FIG. 4, FIG. 6, and FIG. 7, the inner side wall of the through hole of the first connecting portion 111 forms a resisting flange 1113 along the circumferential direction of the through hole, and the locking member 12 further includes an elastic member. 124. The knob 120 further defines an accommodating portion 1203 extending in the axial direction. Specifically, the accommodating portion 1203 is recessed from the end surface of the guiding portion 1201 toward the operating portion 1202 along the axial direction of the knob 120, and the elastic member 124 is located at the accommodating portion 1203. When the screw 121 is engaged with the nut 122, one end of the elastic member 124 abuts against the end surface of the receiving portion 1203, and the other end abuts against the abutting flange 1113 of the inner wall of the through hole of the first connecting portion 111, generating axial direction. The compression deformation, during the flight of the drone, the vibration of the locking mechanism is generated due to the rotation of the propeller, and the vibration may cause the knob 120 and the screw 121 to generate a circumferential movement as a whole, thereby generating an axial movement, resulting in the locking member 12 The loose, compression-deformable elastic member 124 can generate a reverse force in the circumferential direction at the end surface of the receiving portion 1203 and the end surface of the nut 122, which can provide resistance to the relative rotation of the screw 121 and the nut 122. Thereby preventing the knob The 120 and the screw 121 are loosened when subjected to an external force such as vibration, and the stability of the locking member 12 is increased. In addition, in some embodiments, a claw (not shown) may be disposed on the screw 121, and the latch cooperates with a snap structure (not shown) in the second connecting portion 112 to implement the first connecting portion. When the 111 and the second connecting portion 112 are connected, the elastic member 124 can also function as a restoring force; in the embodiment, the elastic member 124 can be an elastic member such as a spring, a silicone sleeve, or a foam sleeve.

Further, a limiting flange 1212 protrudes circumferentially on the screw 121, and the knob 120 and the elastic member 124 are located on one side of the abutting flange 1113 inside the through hole of the first connecting portion 111, and the screw 121 The limiting flange 1212 is located on the other side of the abutting flange 1113. The limiting flange 1212 can limit the movement stroke of the screw 121 in the through hole of the first connecting portion 111, and is convenient for disassembly during the disassembly process. The screw 121 can be prevented from falling.

It can be understood that the limiting flange 1212 of the screw 121 and the abutting flange 1113 of the inner wall of the through hole of the first connecting member 111 can be omitted. At this time, one end of the elastic member 124 abuts against the end surface of the receiving portion 1203, and the other end abuts. The nut 122 or the second connecting portion 112 faces one end of the first connecting portion 111. For details, refer to FIG. 8.

For ease of observation, the above embodiment of the locking member 12 including the knob 120, the screw 121, the nut 122, the fixing member 123 and the elastic member 124 can also refer to the exploded view of the locking member 12 shown in FIG.

The embodiment of the present invention further provides an unmanned aerial vehicle. Referring to FIG. 9, FIG. 9 shows a partial structure of the unmanned aerial vehicle. The unmanned aerial vehicle includes an arm 1 and a power component disposed on the arm 1. The power component includes a motor. 2 and a propeller (not shown), the unmanned aerial vehicle further includes the propeller protection cover 3 described in any of the above embodiments, the propeller protection cover 3 is disposed on the arm 1, and the protection cover main body 20 of the propeller protection cover 3 is wound Set for motor 2.

In other embodiments, the drone further includes a support stand 4 coupled to the arm 1 , the auxiliary positioning structure of the propeller cover 3 is for clamping the support stand 4 , the auxiliary positioning structure includes a first connecting portion The first auxiliary positioning portion 1112 of the 111 and the second auxiliary positioning portion 1122 of the second connecting portion 112, the auxiliary positioning structure and the clamping body 110 can realize positioning of the propeller protection cover 3 from a plurality of directions.

In other embodiments, the arm 1 of the drone is further provided with a positioning structure (not shown), such as a groove or a raised structure, and a third auxiliary provided on the inner wall of the protective cover body 20 of the propeller cover 3. The positioning portion (not shown) cooperates to restrict the movement of the clamping body 110 of the propeller protection cover 3 along the circumferential direction and the axial direction of the UAV arm 1 to improve the stability of the propeller protection cover 3.

The drone may include one, two, three or more arms 1 and a power assembly disposed on the arm 1. Correspondingly, each of the arms 1 is provided with a propeller cover in the foregoing embodiment. 3.

In other embodiments, when the drone includes more than two arms 1 and a power component disposed on the arm 1, a connection mechanism (not shown) may be disposed between adjacent propeller guards 3 Pass The connecting mechanism connects two or more propeller protection covers 3 as a whole to further improve the stability of the propeller protection cover 3, thereby providing a stronger impact resistance; of course, the plurality of propeller protection covers 3 and the connection mechanism can also be integrated. Forming the integral propeller guard 3 allows for faster installation.

The propeller protection cover provided by the above embodiments of the invention has the advantages of convenient disassembly and assembly and high stability, and can provide high-strength anti-collision capability for the UAV adopting the propeller protection cover, and can protect the UAV body, in particular, Effectively protect the propeller from being damaged by other objects, and at the same time effectively avoid harm to people and objects in the flight area of the drone.

It is apparent that the embodiments described above are only a part of the embodiments of the present invention, and the present invention may be embodied in many different forms, and the preferred embodiments of the present invention are illustrated in the accompanying drawings. The scope of protection. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or equivalently replace some of the technical features. The equivalent structures made by using the description of the present invention and the contents of the drawings are directly or indirectly applied to other related technical fields, and are equally within the scope of the patent protection of the present invention.

Claims

A propeller protection cover comprising a locking mechanism and a protective cover body connected to the locking mechanism, the locking mechanism comprising a clamping member for clamping the arm of the drone and for locking a locking member of the clamping member, the clamping member capable of clamping or releasing the UAV arm, the clamping member clamping the UAV arm and locking the locking member The clamping member and the locking member cooperate to clamp the UAV arm.
The propeller protection cover according to claim 1, wherein the clamping member comprises a clamping body and a first connecting portion and a second connecting portion connected to the clamping body, the locking member being connected to the first connection And the second connecting portion cooperates and locks or loosens the clamping member with the unmanned machine arm, the locking member comprises a knob, a screw and a nut, the knob is connected with the screw and the screw is opposite to the screw The rotation of the knob about the axial direction is restricted, the knob and the screw are disposed at the first connecting portion, the nut is disposed at the second connecting portion and realizes the first connecting portion and the second portion by cooperation with the screw Elastic adjustment between the connections.
A propeller protection cover according to claim 2, wherein one end of the screw connected to the knob is provided with a cutting plane, the knob is provided with a hole-shaped axial mounting hole, and the screw is provided with one end of the cutting plane. The axial mounting hole is configured to achieve a rotation limit of the screw relative to the knob about the axial direction.
The propeller protection cover according to claim 2, wherein the locking member further comprises a fixing member, the fixing member is disposed at one end of the knob and locked with one end of the screw to fix the screw and the knob connection.
A propeller guard according to claim 2, said locking member further comprising an elastic member that generates compression deformation in the axial direction when said screw is engaged with the nut.
The propeller protection cover according to claim 5, wherein the knob is provided with an accommodating portion extending in the axial direction, the first connecting portion is provided with a through hole through which the screw is bored, and an inner side wall of the through hole Forming a resisting flange along a circumferential direction of the through hole, the elastic member having one end abutting against an end surface of the receiving portion, and One end abuts against the abutting flange of the inner wall of the through hole.
The propeller protection cover according to claim 6, wherein the screw protrudes circumferentially from the limiting flange, and the knob and the elastic member are located at an inner side of the through hole of the first connecting portion On the side, the limiting flange of the screw is located on the other side of the abutting flange.
The propeller protection cover according to claim 6, wherein the knob includes a guide portion and an operation portion, the accommodation portion is recessed from an end surface of the guide portion in an axial direction of the knob, and an outer circumference dimension of the guide portion and the first portion The inner diameters of the through holes of one of the connecting portions are matched, and the outer peripheral size of the operating portion is larger than the outer peripheral size of the guiding portion.
The propeller protection cover according to claim 2, wherein the nut is embedded in the second connecting portion and is integrally formed with the second connecting portion.
The propeller guard of claim 2, at least one of the first connecting portion and the second connecting portion being rotatably coupled to the grip body.
A propeller guard according to claim 2, wherein the inner wall of the grip body is provided with an elastic cushion layer.
The propeller protection cover according to claim 2, wherein the first connecting portion further includes a first auxiliary positioning portion, and the second connecting portion includes a second auxiliary positioning portion corresponding to the first auxiliary positioning portion, When the first connecting portion and the second connecting portion are locked, the first auxiliary positioning portion and the second auxiliary positioning portion form an auxiliary positioning structure, and the auxiliary positioning structure and the clamping body are implemented in a plurality of directions The positioning of the propeller guard.
An unmanned aerial vehicle, characterized in that the unmanned aerial vehicle includes a machine arm, a power component disposed on the arm and a propeller protection cover, the power component includes a motor and a propeller, and the propeller protection cover is disposed on the The arm of the propeller protection cover is disposed around the motor; the propeller protection cover further includes a locking mechanism and a protective cover body connecting the locking mechanism, the locking mechanism A clamping member for clamping an unmanned aerial vehicle arm and a locking member for locking the clamping member, the clamping member capable of clamping or releasing the drone robot arm, When the clamping member clamps the UAV arm and the locking member is locked, the clamping member and the locking member cooperate to clamp the UAV arm.
The drone according to claim 13, wherein the holding member comprises a clamping body and a first connecting portion and a second connecting portion connected to the clamping body, the locking member being connected to the first connection And the second connecting portion cooperates and locks or loosens the clamping member with the unmanned machine arm, the locking member comprises a knob, a screw and a nut, the knob is connected with the screw and the screw is opposite to the screw The rotation of the knob about the axial direction is restricted, the knob and the screw are disposed at the first connecting portion, the nut is disposed at the second connecting portion and realizes the first connecting portion and the second portion by cooperation with the screw Elastic adjustment between the connections.
The drone according to claim 14, wherein one end of the screw connected to the knob is provided with a cutting plane, the knob is provided with a hole-shaped axial mounting hole, and the screw is provided with one end of the cutting plane. The axial mounting hole is configured to achieve a rotation limit of the screw relative to the knob about the axial direction.
The drone according to claim 17, wherein the locking member further comprises a fixing member, the fixing member is disposed at one end of the knob and locked with one end of the screw to fix the screw and the knob. connection.
The drone according to claim 14, wherein said locking member further comprises an elastic member which generates compression deformation in the axial direction when said screw is engaged with a nut.
The UAV according to claim 17, wherein the knob is provided with an accommodating portion extending in the axial direction, the first connecting portion is provided with a through hole through which the screw is bored, and an inner side wall of the through hole An abutting flange is formed along a circumferential direction of the through hole, and one end of the elastic member abuts against an end surface of the receiving portion, and the other end abuts against an abutting flange of the inner wall of the through hole.
The drone according to claim 18, wherein the screw protrudes circumferentially from the limiting flange, and the knob and the elastic member are located at an inner side of the through hole of the first connecting portion On the side, the limiting flange of the screw is located on the other side of the abutting flange.
The drone according to claim 18, wherein the knob includes a guiding portion and an operating portion, the receiving portion is recessed from an end surface of the guiding portion in an axial direction of the knob, and an outer peripheral dimension of the guiding portion is different from the first The inner diameters of the through holes of one of the connecting portions are matched, and the outer peripheral size of the operating portion is larger than the outer peripheral size of the guiding portion.
The drone according to claim 14, wherein the nut is embedded in the second connecting portion, and It is integral with the second connecting portion.
The drone according to claim 14, wherein at least one of the first connecting portion and the second connecting portion is rotatably coupled to the holding body.
The drone according to claim 14, wherein the inner wall of the holder body is provided with an elastic cushion layer.
The drone according to claim 14, wherein the first connecting portion further includes a first auxiliary positioning portion, and the second connecting portion includes a second auxiliary positioning portion corresponding to the first auxiliary positioning portion, When the first connecting portion and the second connecting portion are locked, the first auxiliary positioning portion and the second auxiliary positioning portion form an auxiliary positioning structure, and the auxiliary positioning structure and the clamping body are implemented in a plurality of directions The positioning of the propeller guard.