WO2018107964A1

WO2018107964A1 - Unmanned aerial vehicle and power assembly, propeller and propeller base assembly thereof

Info

Publication number: WO2018107964A1
Application number: PCT/CN2017/113378
Authority: WO
Inventors: 胡亮军; 邱龙学
Original assignee: 深圳市道通智能航空技术有限公司
Priority date: 2016-12-14
Filing date: 2017-11-28
Publication date: 2018-06-21
Also published as: CN206664924U

Abstract

The present application provides an unmanned aerial vehicle and a power assembly, a propeller, and a propeller base assembly thereof. The power assembly comprises a propeller and a propeller base assembly. The propeller comprises a seat body and a blade disposed on the seat body. The propeller base assembly comprises a fixing seat and key switch. The key switch is axially and slidingly disposed on the fixing seat and is provided with a key body suitable for pressing. The fixing seat is provided with a plurality of accommodating spaces for accommodating hook-shaped clips protruding toward the fixing seat on the propeller. When the key switch is not pressed by an external force, the hook-shaped clip is retained in the accommodating space. When the key switch is pressed by an external force, the hook-shaped clip is released from the accommodating space. The installation of the propeller on the propeller base assembly can be realized only by pressing on the key switch with a one-way external force, achieving quick disassembly and simpler and more convenient operation.

Description

Unmanned aerial vehicle and its power components, propeller and propeller base assembly

This application claims the priority of the Chinese Patent Application entitled "Aircraft and its propeller quick release device, propeller, propeller base assembly" submitted to the China Patent Office on December 14, 2016, application number 201621374247.0, the entire contents of which are The citations are incorporated herein by reference.

Technical field

The present application relates to the field of propellers, and more particularly to an unmanned aerial vehicle and its power components, propeller and propeller base assembly.

Background technique

A propeller is a device that converts the rotational power of the engine into propulsion by rotating the blade in air or water. Two or more blades may be connected to the seat, and the backward side of the blade is a helix or approximately A propeller device with a spiral surface that is widely used in unmanned aerial vehicles. At present, a common propeller structure of an unmanned aerial vehicle generally includes a seat body and a blade mounted on the seat body, wherein the seat body is coupled to a rotating shaft of the engine, and the rotating shaft rotates under the action of the power machine to drive the blades to rotate together, thereby pushing Unmanned aerial vehicle flying. For a small removable UAV, usually the through hole is passed between the seat and the rotating shaft through the through hole of the seat body, and then the screw shaft and the seat body are screwed together by the nut, so the installation thereof And disassembly requires the use of tools to operate, which is cumbersome to use. At the same time, when the motor of the unmanned aerial vehicle rotates at a high speed, the existing thread and the thread structure are installed and matched, which may cause the propeller phenomenon (ie, the propeller is separated from the motor), and the propeller phenomenon may cause the unmanned aircraft to explode. .

At present, the common UAV propeller mounting structure generally adopts a claw block formed at the bottom of the propeller seat body, and then a snap structure is arranged on the corresponding connecting base. During the disassembly and assembly process, the button switch needs to be pressed. Based on the rotation of the propeller, the structure is complicated and the operation is cumbersome. Therefore, how to simplify the installation structure of the unmanned propeller makes the disassembly and assembly operation convenient and has become an urgent problem to be solved.

Summary of the invention

Therefore, the technical problem to be solved by the present application is to overcome the technical defects that the prior art unmanned aerial vehicle propeller mounting structure needs to be simultaneously pressed and rotated during disassembly and assembly, thereby causing difficulty in operation.

In order to solve the above technical problem, the embodiment of the present application provides the following technical solutions:

A propeller base assembly for securing a propeller to a drive device, the propeller having a plurality of hook-shaped clips formed thereon, the propeller mount assembly comprising:

The fixing base is fixedly connected to the main body of the driving device, and the fixing base is provided with a plurality of receiving spaces for receiving the hook-shaped card members;

a push button switch is axially slidably disposed on the fixing base, and has a button body adapted to be pressed;

Wherein, when the button switch is not pressed by an external force, the hook-shaped card member is held in the receiving space by the hook-shaped card member; when the button switch is pressed by an external force, the The hook-shaped clip is separated from the receiving space.

In some embodiments, the propeller base assembly further includes a resetting member that applies a restoring force to the push button switch when the push button switch is pressed by an external force to slide axially relative to the fixed seat.

In some embodiments, the reset member is a spring.

In some embodiments, the fixing seat is provided with a first through hole in the axial direction, and the receiving space is recessed inwardly on the hole wall of the first through hole; the hook-shaped card member slidingly protrudes into the hole The first through hole is held in the receiving space.

In some embodiments, the button body is cylindrical, the button body is slidably disposed in the first through hole, and an outer surface of the button body protrudes outward corresponding to a position of the receiving space. An annular guide slope is formed, and the guide slope gradually increases in diameter along a direction in which the external force is pressed.

In some embodiments, the hook-shaped clip is inserted into the first through hole around the button body and slides into the receiving space along the guiding slope.

In some embodiments, an outer surface of one end of the button body protrudes outwardly to form an annular boss, and an outer diameter of the boss is larger than an aperture of the first through hole.

In some embodiments, an outer surface of the button body is located at the guiding bevel and the convex The portion between the stages protrudes outwardly to form an abutting surface, and the abutting surface is slidably received in the first through hole, and is held in the receiving space by the hook-shaped card.

In some embodiments, the propeller includes a seat body and at least two blades uniformly distributed circumferentially on the seat body, the seat body being axially provided with a second through hole, the first pass The hole and the second through hole are axially aligned, and the button body is slidably disposed in the first through hole and the second through hole.

In some embodiments, the seat body is recessed toward a side of the propeller base assembly to form a receiving slot, and the plurality of hook-shaped clips are formed on the bottom wall of the receiving slot and are equally spaced. At the periphery of the second through hole.

In some embodiments, the seat body is formed with at least one guiding post toward one side of the fixing base; an inner wall of the first through hole of the fixing seat is disposed corresponding to the guiding column inwardly recessed At least one guiding groove, the guiding column is slidably disposed in the guiding groove.

In some embodiments, the guide post and the hook-shaped clip are respectively a plurality of, and the guide post and the hook-shaped clip are alternately spaced around the periphery of the second through hole, and extend Out of the receiving slot.

In some embodiments, the hook-shaped card member corresponds to the number of the receiving spaces, and is respectively disposed at a corresponding corresponding position of the fixing seat and the seat body; the button switch is pressed by an external force. The hook-shaped card member is resisted to accommodate the hook-shaped card member in the receiving space.

In some embodiments, the outer surface of the button body inserted into the second through hole protrudes outwardly to form a profiled protrusion. The side of the second through hole facing the fixed seat is shaped corresponding to the shaped protrusion. a groove, the profiled protrusion being slidably disposed in the profiled groove.

In some embodiments, the receiving space is provided with an elastic member, and the hook-shaped card member receives a portion of the receiving space to resist and compress the elastic member.

In some embodiments, the elastic member includes a spring and an elastic slider disposed between the elastic slider and an inner wall of the receiving space; the hook-shaped clip is opposite to the elastic slider Cooperating, the elastic slider is resisted to compress the spring.

In order to solve the above technical problem, the embodiment of the present application further provides the following technical solutions:

A propeller for securing to a drive through a propeller base assembly, including:

a hook-shaped clip protruding from the seat body is formed on a side of the base toward the propeller base assembly. The plurality of hook-shaped clips are received in a receiving space of the fixing base of the propeller base assembly, Detachably securing the seat body to the propeller base assembly;

Having uniformly distributed at least two blades disposed on the seat body in a circumferential direction;

Wherein the propeller base assembly includes a push button switch, and when the push button switch is not pressed by an external force, the hook-shaped card member is held in the receiving space by abutting the hook-shaped card member; When the push button switch is pressed by an external force, the hook-shaped card member is separated from the receiving space.

In some embodiments, the seat body is axially provided with a second through hole, and the button body of the push button switch of the propeller base assembly is slidably disposed in the second through hole.

A power assembly comprising: a propeller base assembly, a propeller, and a drive device as described above, the propeller being detachably fixed to the propeller base assembly, the propeller mount assembly being fixedly mounted to the drive device, the drive A device is coupled to the propeller for powering rotation of the propeller.

An unmanned aerial vehicle includes a fuselage, an arm, and a power assembly as described above, the power assembly being coupled to the arm.

The UAV provided by the present application and its power components, propeller and propeller base assembly have the following advantages:

1. The propeller base assembly provided by the present application, when the propeller is installed, the button switch is axially slidably disposed on the fixing seat, and the hook-shaped card protruding from the propeller toward the fixing seat is held in the accommodating space, and further The fixing connection of the propeller on the propeller base assembly is realized by the hooking action of the hook-shaped card member; when the propeller is disassembled, the button switch is pressed, and the hook-shaped card member is separated from the receiving space, and the hook-shaped card member and the fixing seat are no longer The clamping connection realizes the disassembly of the propeller. Since the installation of the propeller on the propeller base assembly only needs to be pressed by the one-way external force of the button switch, the operation is simpler and simpler, and the operation is simpler. Convenience.

The propeller base assembly provided by the present application is configured such that the button body is slidably disposed in the first through hole, and the outer surface of the button body is outwardly protruded to form a ring shape corresponding to the position of the receiving space. The guiding inclined surface, the guiding inclined surface gradually increases along the direction of the pressing force of the external force, and when the hook-shaped engaging member of the propeller slides into the first through hole, gradually approaches the receiving space along the guiding inclined surface until Finally, it slides into the accommodating space and is resisted by the outer peripheral surface of the button body, and cannot be withdrawn from the accommodating space.

The propeller base assembly provided by the present application is formed by an outwardly protruding surface of one end of the button body to form an annular boss. The outer diameter of the boss is larger than the aperture of the first through hole, so that the button body is mounted on the button body. When the seat is fixed, the first through hole cannot be passed through, thereby ensuring the stability of the position of the button body and the normal realization of the function.

4. The propeller base assembly provided by the present application is formed with an abutting surface by projecting outwardly from a portion of the outer surface of the button body between the guiding slope and the boss, and the top surface is slidably received in the first through hole. And resisting the hook-shaped card member being held in the accommodating space, so that the contact between the button switch and the hook-shaped card member is a line contact or even a surface contact, thereby avoiding the hook card when only the guide bevel is resisted. The wear of the piece and the guiding bevel is caused by the excessive wear caused by the contact surface being too small.

5. The propeller base assembly of the present application is provided with an elastic member in the receiving space, and the hook-shaped card member is received in the receiving space to resist and compress the elastic member, and when the external force presses the button switch, the button switch is given to the hook. The shape of the card member is sufficient to retract the space, and on the other hand, the elastic member applies sufficient withdrawal thrust to the hook-shaped card member to ensure that the button switch normally exits the receiving space.

6. The propeller provided by the present application has a plurality of hook-shaped clips protruding from the side of the propeller base assembly, and the hook-shaped clips cooperate with the receiving space in the propeller base assembly to make the seat The body is detachably fixedly coupled to the propeller base assembly, and the cooperation between the hook-shaped card member and the receiving space can effectively realize the rapid disassembly of the propeller, and the hook-shaped design makes the propeller connection structure simple and easy to process. Good stability.

7. The propeller provided by the present application has a receiving groove formed by the recess of the seat body toward the side of the propeller base assembly; the bottom of the receiving groove has a second through hole extending through the seat body in the axial direction; and a plurality of hook-shaped clips are formed. The bottom wall of the receiving groove is disposed at an equiangular interval on the periphery of the second through hole, thereby increasing the length of the hook-shaped clip and the deformation receiving space to reduce the deformation caused during the sliding process, thereby improving The life of the hook-shaped card.

8. The power assembly provided by the present application has the advantages described in any one of the above-mentioned propeller base assemblies and corresponding propellers; at the same time, the hook-shaped clips correspond to the number of receiving spaces and are respectively fixed In the corresponding position of the seat and the seat body, when the button switch is not pressed by the external force, the hook-shaped card member is received in the accommodating space, so that the power component only needs to control the hook-shaped card member in the accommodating space. In the state of holding, the propeller can be realized The quick installation on the propeller base assembly provides a simpler and more convenient operation when the structure is simple.

9. The UAV provided by the present application has the advantages described in any of the above, since it has the power assembly described above, and the power assembly includes the propeller base assembly and the propeller described above.

DRAWINGS

In order to more clearly illustrate the technical solutions of the specific embodiments of the present application, the application will be further described in detail below based on the specific embodiments of the present application and the accompanying drawings.

1 is a schematic diagram of a power assembly according to an embodiment of the present application;

Figure 2 is an exploded view of the power assembly shown in Figure 1;

Figure 3 is an exploded view of another angle of the power assembly shown in Figure 1;

Figure 4 is a longitudinal sectional view of the power assembly shown in Figure 1 after removing the blade;

Fig. 5 is a partial enlarged view of a region A of the power unit shown in Fig. 4.

The reference numerals in the drawings are explained below.

100-propeller base assembly; 1-fixed seat; 11-receiving space;

12-first through hole; 13-elastic member; 131-spring; 132-elastic slider;

14-guide groove; 2-button switch; 21-button body; 211-guide bevel;

212-protrusion; 213-to top surface; 214-shaped protrusion; 22-reset;

200-drive device; 201- body; 202-drive shaft; 300-propeller;

301-seat body; 3011-storage groove; 3012-second through hole; 302-hook-shaped card member;

3021 - hook portion; 303 - paddle; 304 - guide post; 400 - connector.

detailed description

The technical solutions of the present application are clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In the description of the present application, it is to be noted that the orientation or positional relationship of the terms "upper", "lower", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the purpose of It is convenient to describe the present application and to simplify the description, and not to indicate or imply that the device or component referred to has The specific orientation, construction and operation in a particular orientation are not to be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or connected in one piece; can be connected directly or indirectly through an intermediate medium. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.

Further, the technical features involved in the different embodiments of the present application described below may be combined with each other as long as they do not constitute a conflict with each other.

As shown in FIG. 1 to FIG. 3 , a schematic diagram of a power assembly provided by an embodiment of the present application includes a propeller base assembly 100 , a propeller 300 , and a driving device 200 . The propeller 300 is detachably fixed to the propeller base assembly 100, and the propeller base assembly 100 is fixedly mounted to the driving device 200, and the driving device 200 is coupled to the propeller 300 for feeding the propeller 300 The rotation provides power.

The propeller 300 includes a seat body 301 and at least two blades 303 uniformly distributed on the seat body 301 in a circumferential direction. The seat body 301 is formed with a plurality of hook-shaped cards of the protruding seat body 301 on one side of the propeller base assembly 100. The plurality of hook-shaped clips 302 are received in the receiving space 11 of the fixing base 1 of the propeller base assembly 100 such that the seat body 301 is detachably fixedly coupled to the propeller base assembly 100.

The propeller base assembly 100 includes a fixed base 1 key switch 2, and the fixed base 1 is fixedly coupled to the main body 201 of the driving device 200. The fixing base 1 is provided with a plurality of receiving spaces for receiving the hook-shaped card members 302. The push button switch 2 is axially slidably disposed on the fixed base 1 and has a button body 21 adapted to be pressed. When the button switch 2 is not pressed by an external force, the hook-shaped card 302 is held in the receiving space 11 by the hook-shaped card 302; when the button switch 2 is subjected to an external force The hook-shaped clip 302 is separated from the receiving space 11 when pressed.

The hook-shaped clips 302 correspond to the number of the receiving spaces 11 and are respectively disposed at corresponding positions of the fixing base 1 and the seat body 301. When the button switch 2 is not pressed by the external force, the hook-shaped card member 302 is pressed to be received and held in the accommodating space 11; when the button switch 2 is pressed by an external force, the hook-shaped card member is pressed. 302 is separated from the accommodating space 11. The propeller base assembly 100 further includes a reset member 22 that applies a restoring force to the push button switch 2 when the push button switch 2 is pressed by an external force to slide relative to the axial direction of the fixed seat 1. In this In an embodiment, the reset member 23 is a spring.

For the above power assembly, when the propeller 300 is mounted, the push button switch 2 is axially slidably disposed on the fixed seat 1 and abuts the hook-shaped clip 302 on the propeller 300 to cause the hook-shaped card member 302 to be received and stuck. The fixed connection of the propeller 300 on the propeller base assembly 100 is realized by the holding action of the hook-shaped card member. When the propeller 300 is removed, the elastic slider 2 is pressed, and the hook-shaped card member 302 is held. When the accommodating space 11 is disengaged, the hook-shaped clip 302 is no longer in a snap-fit connection with the fixed seat 1 , that is, the disassembly of the propeller 300 is achieved. Since the mounting of the propeller 300 on the propeller base assembly 100 only needs to pass through the elastic slider 2 . The one-way external force pressing can be realized, and the operation is simpler and more convenient while realizing quick disassembly and assembly; at the same time, the hook-shaped design is adopted, so that the connection structure of the propeller 300 is simple, the processing is easy, and the stability is good.

Specifically, the button body 21 is cylindrical, and the button body 21 protrudes outwardly from the outer surface of the one end of the reset member 22 to form an annular boss 212. The fixing base 1 and the base body 301 are respectively axially aligned in the axial direction. a first through hole 12 and a second through hole 3012; the button body 21 is slidably disposed in the first through hole 12 and the second through hole 3012, and an outer diameter of the boss 212 is larger than the first through hole 12 The aperture body, in turn, causes the button body 21 to abut the end surface of the fixing base 1 opposite to the seat body 301 in the released state of the resetting member 22 without being detached from the fixing base 1, thereby ensuring the stability of the assembly of the elastic slider 2 and The realization of the function.

As shown in FIG. 4 and FIG. 5, the outer surface of the button body 21 protrudes outwardly from the position of the receiving space 11 to form an annular guiding slope 211, and the guiding slope 211 is pressed along an external force. The direction of the shaft diameter gradually increases. A portion of the outer surface of the button body 21 between the guiding slope 211 and the button body 21 protrudes outwardly to form an abutting surface 213. The guiding slope 211 and the abutting surface 213 are slidably received in the first through hole 12 The receiving space 11 is recessed inwardly on the wall of the first through hole 12, as shown in FIG.

When the hook-shaped card member 302 is connected to the fixing base 1, the hook portion 3021 of the hook-shaped card member 302 slidingly protrudes into the first through-hole 12 along the guiding inclined surface 211, and gradually approaches the receiving space along the guiding inclined surface 211. 11. Finally, it slides into the accommodating space 11 and is held in the accommodating space 11 by the abutting action of the abutting surface 213, and is resisted by the outer peripheral surface of the button body 2, so that the accommodating space cannot be withdrawn. Specifically, the hook-shaped card member 302 is inserted into the first through hole 12 around the button body 21 and slides into the receiving space 11 along the guiding slope 211. At this time, the hook portion 3021 of the hook-shaped card member 302 During the downward sliding along the wall of the first through hole 12, the force applied by the guiding slope 211 is exerted, thereby causing a tendency to expand outward, when the hook portion 3021 is slid to the position of the receiving space 11. The hook-shaped card member 302 is pressed by the guiding slope 211 to engage the hook portion 3021 The receiving space 11; at the same time, because the abutting surface 213 and the hook-shaped card 302 are in line contact, or even in surface contact, thereby reducing the wear of the guiding bevel 211 and the hook portion 3021, thereby increasing the service life of the power assembly.

As an optional embodiment, an elastic member 13 is disposed in the receiving space 11 , and the hook portion 302 is received in the hook portion 3021 of the receiving space 11 to resist and compress the elastic member 13 , and the elastic member 13 includes a spring 131 and an elastic slider 132 disposed between the elastic slider 132 and the inner wall of the receiving space 11; the hook portion 3021 of the hook-shaped clip 302 cooperates with the elastic slider 132 to resist elastic sliding The block 132 realizes the function of the elastic member 13 to resist the hook portion 3021 by compressing the spring 131 and further acting on the elastic force of the elastic slider 132 by the spring 131. In the present embodiment, the reset member 22 is also a spring 131.

In order to make the mounting of the seat body 301 on the fixing base 1 more convenient and accurate, at least one blade 304 is formed on the side of the seat body 301 facing the fixing base 1; the inner wall of the first through hole 12 of the fixing base 1 corresponds to The paddle 304 is recessed inwardly with at least one guide slot 14 in which the paddles 304 are slidably disposed, as shown in FIG.

During the use of the power assembly, the hook-shaped card 302 and the blade 304 are deformed by the force of the force, and thus the cable assembly is easily damaged, so that the power component loses its quick-release function, and therefore the hook card is often required to be improved. The service life of the piece 302 and the paddles 304 is to ensure the realization of the power component function. As shown in FIG. 3, a receiving groove 3011 is formed in a recessed manner of the seat body 301 toward the side of the propeller base assembly 100. A plurality of the hook-shaped latching members 302 are formed on the bottom wall of the receiving slot 3011 and extend out. The grooves 3011 are equiangularly spaced around the periphery of the second through hole 3012, thereby increasing the length of the hook-shaped clip 302 and the paddle 304 to reduce the deformation thereof during the sliding process, thereby improving the hook. The useful life of the shaped clips 302 and the blades 304.

In addition to this, at least one guide post 304 is formed on one side of the seat body 301 toward the fixed seat 1, and the guide post 304 is slidably disposed in the above-described guide groove 14. A plurality of guide posts 304 and a plurality of hook-shaped clips 302 are equally spaced around the periphery of the second through hole 3012 and extend out of the receiving groove 3011, thereby causing the propeller 300 to be received on the propeller base assembly 100. The force balance ensures the stability of the unmanned aerial vehicle flight of the propeller 300 during use.

In the process of using the power component, in addition to ensuring that the propeller 300 and the fixed seat 1 are circumferentially fixed, it is often necessary to fix the elastic slider 2 relative to the seat body 301 in the circumferential direction to ensure stable assembly between the two. For this purpose, the outer surface of the second through hole 3012 of the seat body 301 is protruded outwardly to form a deformed protrusion 214, and the side of the second through hole 3012 facing the fixed seat 1 is shaped corresponding to the shaped protrusion 214. Groove (not shown), profiled protrusion 214 slides The elastic slider 2 is fixedly disposed in the circumferential direction, so as to ensure that the elastic slider 2 is relatively fixed in the circumferential direction with respect to the seat body 301.

In the process of driving the propeller 300 to rotate, as an alternative embodiment, the driving device 200 is a rotating electrical machine (not shown), the output shaft of the rotating electrical machine is fixedly connected with the main body 201, and the main body 201 is provided with a protruding driving. The shaft 202, the elastic slider 2 and the restoring member 22 are sleeved on the driving shaft 202, and the restoring member 22 pushes the elastic slider 2 to abut the hook portion 3021 of the hook-shaped card member 302 in the receiving space 11. Further, the reset member 22 can stably apply a resisting force to the hook-shaped clip 302, ensuring assembly stability between the propeller 300 and the mount 1. At the same time, the fixing base 1 is fixedly mounted on the main body 201 through the connecting member 400. In the embodiment, the connecting member 400 is a screw, and the main body 201 can be driven to rotate by controlling the rotation of the output shaft of the rotating electric machine to drive the main body 201 to rotate. The fixing base 1 rotates and drives the hook-shaped clip 302 held in the fixing base 1 to rotate axially, thereby realizing the coaxial rotation of the propeller 300.

As a modified embodiment, the driving device 200 may also be a rotating electric cylinder or the like having a rotating output power, which will not be enumerated here.

The present application also provides an unmanned aerial vehicle (not shown) including a fuselage, an arm, and a power assembly as described in the above embodiment, the power assembly being coupled to the arm for providing the unmanned The aircraft provides flight power.

The above-described unmanned aerial vehicle has the advantages described in the above embodiments since the above-described power components are employed.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; in the idea of the present application, the technical features in the above embodiments or different embodiments may also be combined. The steps may be carried out in any order, and there are many other variations of the various aspects of the present application as described above, which are not provided in the details for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, The skilled person should understand that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the embodiments of the present application. The scope of the technical solution.

Claims

A propeller base assembly (100) for securing a propeller (300) to a drive unit (200) having a plurality of hook-shaped clips (302) formed thereon, wherein the propeller base assembly ( 100) Includes:

The fixing base (1) is fixedly connected to the main body (201) of the driving device (200), and the fixing base (1) is provided with a plurality of receiving spaces (11) for accommodating the hook-shaped card members (302);

a button switch (2), axially slidingly disposed on the fixing seat (1), having a button body (21) suitable for pressing;

Wherein, when the button switch (2) is not pressed by an external force, the hook-shaped card member (302) is held in the receiving space (11) by the hook-shaped card member (302); When the push button switch (2) is pressed by an external force, the hook-shaped card member (302) is separated from the receiving space (11).
The propeller base assembly (100) according to claim 1, further comprising a reset member (22) that is pressed by an external force with respect to an axial direction of the fixed seat (1) The reset member (22) applies a restoring force to the push button switch (2) when sliding.
A propeller base assembly (100) according to claim 2, wherein the reset member (23) is a spring.
The propeller base assembly (100) according to any one of claims 1-3, wherein the fixing base (1) is axially provided with a first through hole (12), the first through hole ( 12) the hole wall is recessed inwardly with the receiving space (11); the hook-shaped card member (302) slidingly extends into the first through hole (12) and is retained in the receiving Space (11).
The propeller base assembly (100) according to claim 4, wherein the button body (21) is cylindrical, and the button body (21) is slidably disposed in the first through hole (12) And an outer surface of the button body (21) protrudes outwardly from the position of the receiving space (11) to form an annular guiding slope (211), the guiding slope (211) along an external force The direction of the axis of the pressing gradually increases.
The propeller base assembly (100) according to claim 5, wherein the hook-shaped card member (302) is inserted into the first through hole (12) around the button body (21), And sliding along the guiding slope (211) into the receiving space (11).
The propeller base assembly (100) according to any one of claims 4-6, wherein an outer surface of one end of the button body (21) is outwardly convexly formed with an annular boss (212). The outer diameter of the boss (212) is larger than the aperture of the first through hole (12).
The propeller base assembly (100) according to claim 7, wherein an outer surface of the button body (21) is located at a portion between the guiding bevel (211) and the boss (212) The outer protrusion is formed with an abutting surface (213), the abutting surface (213) is slidably received in the first through hole (12), and is held in the receiving by the hook-shaped card Space (11).
A propeller base assembly (100) according to any one of claims 4-8, wherein the propeller (300) comprises a seat body (301) and is circumferentially evenly distributed over the seat body (301) At least two blades (303), the base body (301) is axially provided with a second through hole (3012), and the first through hole (12) and the second through hole (3012) are along In axial alignment, the button body (21) is slidably disposed in the first through hole (12) and the second through hole (3012).
The propeller base assembly (100) according to claim 9, wherein the seat body (301) is recessed toward a side of the propeller base assembly (100) to form a receiving groove (3011), and the plurality of A hook-shaped card member (302) is formed on the bottom wall of the receiving groove (3011) and is equiangularly spaced apart from the periphery of the second through hole (3012).
The propeller base assembly (100) according to claim 9 or 10, wherein the seat body (301) is formed with at least one guide post (304) toward one side of the fixing base (1); An inner wall of the first through hole (12) of the fixing base (1) is provided with at least one guiding groove (14) corresponding to the guiding post (304) inwardly recessed, and the guiding column (304) is slidably disposed In the guiding groove (14).
The propeller base assembly (100) of claim 11 wherein said guide post (304) and said hook-shaped clip member (302) are each a plurality, said guide post (304) and said The hook-shaped clips (302) are alternately spaced around the periphery of the second through hole (3012) and extend out of the receiving groove (3011).
The propeller base assembly (100) according to any one of claims 9 to 12, wherein the hook-shaped card member (302) corresponds to the number of the receiving spaces (11), and is respectively disposed at the fixing a corresponding position of the seat (1) and the seat body (301); the button switch (2) abuts the hook-shaped card member (302) when pressed against an external force to cause the hook The card member (302) is housed in the accommodating space (11).
The propeller base assembly (100) according to any one of claims 9-13, wherein the outer surface of the button body (21) inserted into the second through hole (3012) protrudes outward to form a profiled protrusion. (214), a side of the second through hole (3012) facing the fixing base (1) corresponding to the deformed protrusion (214) is provided with a shaped groove, and the shaped protrusion (214) is slidably disposed at In the shaped groove.
The propeller base assembly (100) according to any one of claims 1 to 14, wherein an elastic member (13) is disposed in the receiving space (11), and the hook-shaped card member (302) is received. The elastic member (13) is abutted and compressed at a portion of the accommodating space (11).
The propeller base assembly (100) according to claim 15, wherein the elastic member (13) comprises a spring (131) and an elastic slider (132), and the spring (131) is disposed on the elastic slide Between the block (132) and the inner wall of the receiving space (11); the hook-shaped clip (302) cooperates with the elastic slider (132) to abut the elastic slider (132) such that The spring (131) is compressed.
A propeller (300) for securing to a drive unit (200) by a propeller base assembly (100), comprising:

The seat body (301) is formed with a plurality of hook-shaped clips (302) protruding from the seat body (301) toward one side of the propeller base assembly (100), and the plurality of hook-shaped clips (302) are received. In the receiving space (11) of the fixing base (1) of the propeller base assembly (100), so that the seat body (301) detachably fixedly coupled to the propeller base assembly (100);

Circulating evenly distributing at least two blades (303) disposed on the seat body (301);

The propeller base assembly (100) includes a push button switch (2) that abuts the hook-shaped card member (302) when the button switch (2) is not pressed by an external force to cause the hook-shaped card member (302) is held in the accommodating space (11); when the button switch (2) is pressed by an external force, the hook-shaped card member (302) is separated from the accommodating space (11).
The propeller (300) according to claim 17, wherein the seat body (301) is axially provided with a second through hole (3012), and the push button switch of the propeller base assembly (100) The button body (21) of 2) is slidably disposed in the second through hole (3012).
The propeller (300) according to claim 18, wherein the seat body (301) is recessed toward a side of the propeller base assembly (100) to form a receiving groove (3011), and the plurality of hook shapes The card member (302) is formed on the bottom wall of the receiving groove (3011) and is equiangularly spaced apart from the periphery of the second through hole (3012).
A power assembly, comprising: a propeller base assembly (100), a propeller (300), and a driving device (200) according to any one of claims 1-16, the propeller (300) being detachably Fixed to the propeller base assembly (100), the propeller base assembly (100) is fixedly mounted to the driving device (200), and the driving device (200) is connected to the propeller (300) for The rotation of the propeller (300) provides power.
An unmanned aerial vehicle characterized by comprising a fuselage, an arm and a power assembly according to claim 20, said power assembly (500) being coupled to said arm.