CN209870735U

CN209870735U - Quick detach coupling assembling, screw, power device and subassembly and many rotor crafts

Info

Publication number: CN209870735U
Application number: CN201920610310.3U
Authority: CN
Inventors: 李齐; 李忠洪; 陈鹏
Original assignee: Shenzhen Dajiang Innovations Technology Co Ltd
Current assignee: Shenzhen Dajiang Innovations Technology Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2019-12-31
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a quick detach coupling assembling, screw, power device and subassembly and many rotor crafts. The quick release connecting assembly comprises a first connecting piece, a second connecting piece and an inserting piece, wherein one of the first connecting piece and the second connecting piece is used for being mechanically coupled with the propeller, and the other one of the first connecting piece and the second connecting piece is used for being mechanically coupled with the power device. One of the first connecting piece and the second connecting piece is provided with a convex part, the other one of the first connecting piece and the second connecting piece is provided with an accommodating part, the accommodating part is provided with an installation through hole penetrating along a first direction, the convex part is provided with a concave part, a cavity is formed in the accommodating part, the shape of the cavity is matched with that of the convex part, the convex part is at least partially installed in the cavity along a second direction, and the concave part of the convex part corresponds to the through hole. The insert penetrates through the mounting through hole and the recess, the insert limits the convex part and the accommodating part to be separated from each other along the second direction, and the first direction is intersected with the second direction. Thus, torque and tension can be transmitted through the insert, and the first connecting piece and the second connecting piece are prevented from being separated from each other.

Description

Quick detach coupling assembling, screw, power device and subassembly and many rotor crafts

Technical Field

The utility model relates to the technical field of machinery, in particular to quick detach coupling assembling, screw, power device and subassembly and many rotor crafts.

Background

The screw is unmanned aerial vehicle's important part, because of unmanned aerial vehicle's portability and other user experience and the protection demand to the screw, need design the connecting device between screw and the power supply part (like motor etc.), make screw and power supply part high-speed joint or separation, and the device should possess certain reliability, guarantee the stability of screw during operation, can prevent that the screw from breaking away from on the power supply part at the during operation in the transmission power.

Simultaneously, because screw and power supply part are two independent parts, when unmanned aerial vehicle flies, pulling force and moment of torsion need be undertaken in the connection between screw and the power supply part.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a quick detach coupling assembling, screw, power device and subassembly and many rotor crafts.

The utility model discloses a quick detach coupling assembling of embodiment is used for connecting screw and power device, quick detach coupling assembling includes first connecting piece, second connecting piece and insert, one of first connecting piece and the second connecting piece is used for mechanical coupling with the screw, and the other one is used for mechanical coupling with power device;

one of the first connecting piece and the second connecting piece is provided with a convex part, the other one of the first connecting piece and the second connecting piece is provided with an accommodating part, the accommodating part is provided with an installation through hole penetrating along a first direction, the convex part is provided with a concave part, the accommodating part is provided with a cavity for accommodating the convex part, the shape of the cavity is matched with that of the convex part, the convex part is at least partially arranged in the cavity along a second direction, and the concave part of the convex part corresponds to the through hole;

the insert penetrates through the mounting through hole and the recess, the insert limits the convex part and the accommodating part to be separated from each other along the second direction, and the first direction is intersected with the second direction.

In the quick-release connecting assembly of the embodiment, because the insert is arranged in the mounting through hole and the recess in a penetrating manner and locked, on one hand, when the first connecting piece or the second connecting piece rotates, the torque can be transmitted through the insert, on the other hand, the tensile force can be transmitted through the insert, and the first connecting piece and the second connecting piece are prevented from being separated from each other. Therefore, the utility model discloses embodiment's quick detach coupling assembling is respectively through different structure transmission moment of torsion and realization locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture. And, the plug-in components and first connecting piece and second connecting piece separation setting, even the plug-in components damage, also need not to change whole screw or power device, only need change the plug-in components can.

In some embodiments, the first connecting member is provided with the protruding portion, the second connecting member is provided with the receiving portion, the second connecting member includes a mounting seat, the receiving portion protrudes from the mounting seat, and the mounting seat is used for being mounted on the power device.

In some embodiments, the mounting seat defines a mounting seat through hole, and the mounting seat through hole accommodates an elastic member, wherein the elastic member presses the insert into the mounting through hole and the recess.

In some embodiments, the insert is in an elongated shape, the insert is provided with a first clamping portion and a second clamping portion protruding from two ends of the insert in a length direction of the insert, the elastic member presses the insert toward the first connecting member, and the first clamping portion and the second clamping portion are clamped on an outer wall of the accommodating portion.

In some embodiments, the insert includes a body and two clip arms connected to one end of the body, the two clip arms are spaced apart from each other, the first clip portion is disposed at an end of the body opposite to the clip arms, and the second clip portion is disposed at an end of the clip arms opposite to the body.

In certain embodiments, the insert comprises a spring catch;

or, the mounting through hole comprises a threaded section through hole, the recess comprises a threaded section, and the insert comprises a threaded section which is screwed in the threaded section through hole and the threaded section to lock the insert in the mounting through hole and the recess;

or, the first direction is perpendicular to the second direction;

or the included angle between the first direction and the second direction is 60-120 degrees.

In some embodiments, the insert is provided with a limiting portion for cooperating with the first connector and/or the second connector to prevent the insert from coming out of the mounting through hole and/or the recess.

In some embodiments, the quick release connection assembly includes a resilient member for providing a resilient force to the insert to maintain the insert in engagement with the first connector and/or the second connector.

The utility model discloses a screw of embodiment is used for providing flight power for many rotor crafts, the screw includes any one of the above-mentioned embodiment quick detach coupling assembling's first connecting piece and with the paddle that first connecting piece is connected.

In the screw of the above embodiment, because the insert is inserted into and locked in the mounting through hole and the recess, on one hand, when the first connecting piece or the second connecting piece rotates, the torque can be transmitted through the insert, and on the other hand, the tensile force can be transmitted through the insert, so that the first connecting piece and the second connecting piece are prevented from being separated from each other. Therefore, the utility model discloses embodiment's quick detach coupling assembling is respectively through different structure transmission moment of torsion and realization locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture. And, the plug-in components and first connecting piece and second connecting piece separation setting, even the plug-in components damage, also need not to change whole screw or power device, only need change the plug-in components can.

The utility model discloses an embodiment's power device includes rotor and above-mentioned arbitrary embodiment quick detach coupling assembling's second connecting piece, the second connecting piece is followed the rotor rotates together.

In the power device of the above embodiment, since the insert is inserted into and locked in the mounting through hole and the recess, on one hand, when the first connecting piece or the second connecting piece rotates, torque can be transmitted through the insert, and on the other hand, tension can be transmitted through the insert, thereby preventing the first connecting piece and the second connecting piece from being separated from each other. Therefore, the utility model discloses embodiment's quick detach coupling assembling is respectively through different structure transmission moment of torsion and realization locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture. And, the plug-in components and first connecting piece and second connecting piece separation setting, even the plug-in components damage, also need not to change whole screw or power device, only need change the plug-in components can.

The utility model discloses a power component of embodiment includes any embodiment quick detach coupling assembling, screw and power device, the second connecting piece is installed power device, first connecting piece with the screw is connected.

In the power assembly of the above embodiment, because the insert is inserted into and locked in the mounting through hole and the recess, on one hand, when the first connecting piece or the second connecting piece rotates, torque can be transmitted through the insert, and on the other hand, tension can be transmitted through the insert, so that the first connecting piece and the second connecting piece are prevented from being separated from each other. Therefore, the utility model discloses embodiment's quick detach coupling assembling is respectively through different structure transmission moment of torsion and realization locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture. And, the plug-in components and first connecting piece and second connecting piece separation setting, even the plug-in components damage, also need not to change whole screw or power device, only need change the plug-in components can.

The utility model discloses a many rotor crafts of embodiment includes fuselage and horn, the horn is connected the fuselage, install the power component among the above-mentioned embodiment on the horn.

In the multi-rotor aircraft of the above embodiment, because the insert is inserted into and locked in the mounting through hole and the recess, on one hand, when the first connecting piece or the second connecting piece rotates, the torque can be transmitted through the insert, and on the other hand, the tensile force can be transmitted through the insert, so that the first connecting piece and the second connecting piece are prevented from being separated from each other. Therefore, the utility model discloses embodiment's quick detach coupling assembling is respectively through different structure transmission moment of torsion and realization locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture. And, the plug-in components and first connecting piece and second connecting piece separation setting, even the plug-in components damage, also need not to change whole screw or power device, only need change the plug-in components can.

In some embodiments, the power assembly is multiple and comprises a first power assembly and a second power assembly, wherein the power device of the first power assembly is used for driving the propeller to rotate in the clockwise direction, and the power device of the second power assembly is used for driving the propeller to rotate in the anticlockwise direction.

In certain embodiments, the shape of the convex portion of the first power assembly is different from the shape of the convex portion of the second power assembly.

In certain embodiments, the size of the lobes of the first power assembly is different than the size of the lobes of the second power assembly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a quick-release connection assembly according to an embodiment of the present invention;

fig. 2 is an exploded view of the quick release connection assembly according to the embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a quick release connection assembly according to an embodiment of the present invention;

fig. 4 is another schematic cross-sectional view of a quick release connection assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of an insert of a quick release connection assembly according to an embodiment of the present invention;

FIG. 6 is another schematic view of an insert of the quick release coupling assembly of an embodiment of the present invention;

fig. 7 is a schematic structural view of a multi-rotor aircraft according to an embodiment of the present invention.

Description of the main element symbols:

a multi-rotor aircraft 1000;

the quick release connecting assembly comprises a quick release connecting assembly 100, a first connecting piece 10, a convex part 11, a concave part 111, a mounting part 12, a clamping arm 121, a second connecting piece 20, a receiving part 21, a mounting through hole 211, a mounting seat 22, a mounting seat through hole 221, an inserting piece 30, a first clamping part 31, a second clamping part 32, a body 33, a clamping arm 34, a spring clamp 35, a connecting part 351, a clamping pin 352, a convex part 353, an elastic piece 40, a fixing piece 50, a first direction X and a second direction Y;

propeller 200, paddle 201, power device 300, motor shaft 301, fuselage 400, horn 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 4, a quick release connection assembly 100 according to an embodiment of the present invention includes a first connection member 10, a second connection member 20, and an insertion member 30, wherein one of the first connection member 10 and the second connection member 20 is configured to be mechanically coupled to a propeller 200, and the other is configured to be mechanically coupled to a power device 300;

one of the first connector 10 and the second connector 20 is provided with a convex portion 11, the other one of the first connector 10 and the second connector 20 is provided with a receiving portion 21, the receiving portion 21 is provided with a mounting through hole 211 penetrating along the first direction X, the convex portion 11 is provided with a concave portion 111, the convex portion 11 is at least partially mounted in the receiving portion 21 along the second direction Y, and the concave portion 111 of the convex portion 11 corresponds to the mounting through hole 211.

The insert 30 is inserted into the mounting through hole 211 and the recess 111, and the insert 30 restricts the protrusion 11 and the receiving portion 21 from being separated from each other in the second direction Y, which intersects with the first direction X.

Specifically, in the illustrated embodiment, the first link 10 is mechanically coupled to the propeller 200, the second link 20 is mechanically coupled to the power unit 300, the first link 10 is provided with the protrusion 11, and the second link 20 is provided with the receiving portion 21. It is understood that, in other embodiments, the second connecting member 20 may be mechanically coupled to the propeller 200, the first connecting member 10 may be mechanically coupled to the power device 300, the second connecting member 20 is provided with the protrusion 11, and the first connecting member 10 is provided with the receiving portion 21, and the specific arrangement manner is not limited herein. The above mechanical coupling may mean that the two are fixedly connected directly or indirectly through other components or detachably connected.

It should be noted that the recess 111 may be a through hole or a groove, that is, the protrusion 11 may form a through hole or a groove. In the illustrated embodiment, the recess 111 is a through hole opened in the first direction X in the protruding portion 11, the through hole corresponds to the mounting through hole 211 in the receiving portion 21, and the insert 30 sequentially penetrates through the mounting through hole 211 and the through hole in the protruding portion 11 to restrict the protruding portion 11 and the receiving portion 21 from being separated from each other in the second direction Y.

In the present embodiment, the first direction X intersects (i.e., is not parallel to) the second direction Y, and an included angle between the first direction X and the second direction Y is 60 to 120 degrees. In the illustrated embodiment, the first direction X is perpendicular to the second direction Y, the first direction X is a horizontal direction, and the second direction Y is a vertical direction.

At present, in the conventional technology, the propeller and the power source component are directly connected by threads, and the screw threads are matched to transmit the pulling force, or a specific structure (for example, an L-shaped clamping hook) on the propeller is matched with a groove on the power source component, and the matching structure of the screw threads and the groove is used for locking the propeller and transmitting the torque and the pulling force. However, in above-mentioned two kinds of modes, the cooperation structure of screw and power source part plays the effect of transmission moment of torsion and locking simultaneously, and its atress is comparatively concentrated, leads to easy wearing and tearing or rupture, and the reliability problem appears easily when the live time is longer, is that the screw probably breaks away from power source part at transmission power, influences unmanned aerial vehicle's security.

The utility model discloses in embodiment's quick detach coupling assembling 100, because insert 30 wears to establish and locks in installation through-hole 211 and sunken 111, on the one hand, when first connecting piece 10 or second connecting piece 20 rotate, accessible convex part 11 cooperatees with the portion of acceping 21 and transmits the moment of torsion, and on the other hand realizes the locking function through insert 30, avoids first connecting piece 10 and second connecting piece 20 alternate segregation, has improved the reliability of connecting. Therefore, the utility model discloses embodiment's quick detach coupling assembling 100 respectively through different structure transmission moment of torsion with realize the locking function to the dispersion atress condition effectively avoids the atress comparatively to concentrate and leads to wearing and tearing easily or the rupture.

Further, the insert 30 is provided separately from the first link 10 and the second link 20, and even if the insert 30 is damaged, it is not necessary to replace the entire propeller 200 or the power unit 300, but only the insert 30 may be replaced.

Referring to fig. 2 to 4, in the present embodiment, the first connecting member 10 is provided with a protrusion 11, the second connecting member 20 is provided with a receiving portion 21, the second connecting member 20 includes a mounting seat 22, the receiving portion 21 is convexly provided on the mounting seat 22, and the mounting seat 22 is used for being mounted on the power device 300.

Specifically, the mounting seat 22 is fixedly mounted in the power device 300 by a fixing member 50, and the fixing member 50 includes a fixing element such as a screw, a pin, and the like. The power device 300 may be an electric motor, which may be an external rotor motor or an internal rotor motor, and the mounting seat 22 is mounted on the rotor of the electric motor and can rotate together with the rotor. In this way, the mounting seat 22 is fixedly mounted on the power device 300 and can rotate along with the power device 300, so that the propeller 200 can be driven to rotate by the second connecting piece 20 and the first connecting piece 10 when the power device 300 rotates.

It is understood that in some embodiments, one of the first connecting member 10 and the second connecting member 20 is a rotor housing of the motor or a component rotating together with the rotor of the motor, and the other is a hub of the propeller 200 or a component rotating together with the hub, and the specific arrangement is not limited herein.

Referring to fig. 2 to 4, in the present embodiment, the mounting base 22 has a mounting base through hole 221, the mounting base through hole 221 accommodates the elastic element 40, and the elastic element 40 presses the insert 30 into the mounting through hole 211 and the recess 111.

Specifically, in the illustrated embodiment, the power device 300 may be a motor, a motor shaft 301 of the motor is inserted into the mounting seat through hole 221, the elastic member 40 is sleeved on the motor shaft 301, one end of the elastic member 40 abuts against the power device 300, the other end abuts against the insert 30, and the elastic member 40 is in a compressed state to apply an elastic force to the insert 30 to press the insert 30 in the mounting through hole 211 and the recess 111.

Thus, the elastic member 40 can press the insert 30 in the mounting through-hole 211 and the recess 111, thereby preventing the insert 30 from being separated from the mounting through-hole 211 and/or the recess 111, and improving reliability and stability of connection.

Referring to fig. 2 and 4, in some embodiments, the insert 30 is elongated, the first locking portion 31 and the second locking portion 32 are respectively protruded from two ends of the insert 30 along the length direction of the insert 30, the elastic member 40 presses the insert 30 toward the first connecting member 10, and the first locking portion 31 and the second locking portion 32 are locked on the outer wall of the receiving portion 21.

Specifically, the insert 30 includes a body 33 and two clip arms 34 connected to one end of the body 33, the two clip arms 34 are disposed at an interval, the first clip portion 31 is disposed at an end of the body 33 opposite to the clip arms 34, and the second clip portion 32 is disposed at an end of the clip arms 34 opposite to the body 33. That is, a space is left between the two latch arms 34, and one end of each latch arm 34 is provided with a second latch portion 32.

Referring to fig. 3 and 4, when the insert 30 is inserted into the mounting through hole 211 and the recess 111, the motor shaft 301 of the motor is located between the two clamping arms 34. After the insertion of the insert 30, the elastic member 40 presses the insert 30 toward the first connecting member 10 to clamp the first and second catching portions 31 and 32 against the outer wall of the receiving portion 21. Thus, the first and second catching portions 31 and 32 can prevent the detachment phenomenon from occurring by moving in the first direction X after the insert 30 is inserted into the mounting through-hole 211 and the recess 111.

Referring to fig. 5 and 6, in some embodiments, the insert 30 may be a spring catch 35. As shown in the figure, the spring catch 35 has two catching legs 352 and a connecting portion 351 connecting the two catching legs 352, the catching legs 352 have elasticity, and the gap width between the two catching legs 352 can be reduced by an external force and can be restored when the external force is removed. When the spring clip 35 needs to be inserted, the two clamping feet 352 can be pinched from the outer side, then the spring clip 35 is inserted into the installation through hole 211 and the recess 111, and then the clamping feet 352 are released, so that the convex part 11 and the accommodating part 21 can be clamped under the action of the elastic force of the spring clip 35. Since the spring clip 35 has elasticity, the elastic member 40 may not be provided in the present embodiment. Of course, in order to further ensure the stability and reliability of the connection, the elastic member 40 may be arranged to press the spring catch 35 against the first connecting member 10, and the specific arrangement is not limited herein. The spring catch 35 in fig. 5 is in a normal state in which the catch 352 is not pinched, and the spring catch 35 in fig. 6 is in a compressed state in which the catch 352 is pinched.

Additionally, in some embodiments, the mounting through-hole 211 may comprise a threaded-segment through-hole, the recess 111 may comprise a threaded segment, and the insert 30 may comprise a threaded segment that threads into the threaded-segment through-hole and the threaded segment to lock the insert 30 in the mounting through-hole 211 and the recess 111.

Thus, the first and second connection members 10 and 20 can be reliably connected and easily disassembled by screwing the insert 30 to the mounting through-hole 211 and the recess 111.

Referring to fig. 2, in some embodiments, the shape of the protrusion 11 is non-cylindrical, and the receiving portion 21 is formed with a cavity 212 for receiving the protrusion 11, and the shape of the cavity 212 matches the shape of the protrusion 11.

In this way, the convex portion 11 is made into a non-cylindrical shape, and the shape of the cavity 212 of the receiving portion 21 for receiving the convex portion 11 is made to match with the shape of the convex portion 11, so that the fool-proof effect can be achieved, the mounting through hole 211 and the recess 111 can be quickly and accurately aligned when the first connecting piece 10 and the second connecting piece 20 are mounted, and the inserting piece 30 can be accurately and quickly inserted into the mounting through hole 211 and the recess 111.

Specifically, in the example shown in fig. 2, the convex portion 11 has a regular hexagonal shape. It is understood that, in other embodiments, the convex portion 11 may also have a regular shape such as a regular octagon or other irregular shapes, and is not limited herein.

Referring to fig. 2 to 4, in some embodiments, the first connecting member 10 is provided with a protrusion 11, the second connecting member 20 is provided with a receiving portion 21, the first connecting member 10 includes a mounting portion 12 connected to the protrusion 11, the mounting portion 12 is located on a side of the protrusion 11 away from the receiving portion 21, and the mounting portion 12 is mounted with a blade 201 of the propeller 200.

Specifically, the mounting portion 12 includes a clamp arm 121, and the clamp arm 121 clamps one end of the paddle 201. In the illustrated embodiment, the number of paddles 201 is two, the number of gripper arms 121 is 2, and each two gripper arms 121 grip one paddle 201. In addition, the clamping arm and the paddle can be rotatably connected in a shaft connecting mode, so that the paddle 201 is convenient to store.

In some embodiments, the insert 30 is provided with a stopper portion for cooperating with the first connector 10 and/or the second connector 20 to prevent the insert 30 from being removed from the mounting through-hole 211 and/or the recess 111.

As such, when the insert 30 is inserted into the mounting through hole 211 and the recess 111, the stopper portion can be engaged with the first connector 10 and/or the second connector 20 to prevent the insert 30 from coming off.

Specifically, in some embodiments, the position-limiting portion may include a first locking member, and the second connecting member 20 is provided with a second locking member, and when the insert 30 is inserted into the mounting through hole 211 and the recess 111, the first locking member and the second locking member cooperate to lock the position-limiting portion to prevent the insert 30 from being removed.

It can be understood that, when the insert 30 is the spring catch 35, the limiting portion may also be a protrusion 353 formed on the latch 352, and when the spring catch 35 is inserted into the mounting through hole 211 and the recess 111 after being pinched and then released, the latch 352 may latch the spring catch 35, and the protrusion 353 of the latch 352 may be latched on the outer wall of the receiving portion to prevent the spring catch 35 from falling off. Of course, the above-mentioned limiting portion may also include the first locking portion 31 and the second locking portion 32 mentioned in the above-mentioned embodiments, and the specific structure will not be described repeatedly here.

Referring to fig. 4, in the present embodiment, the elastic member 40 is used to provide an elastic force to the insertion member 30 so that the insertion member 30 maintains a state of being engaged with the first connection member 10 and/or the second connection member 20.

In particular, the elastic force provided by the elastic element 40 can cause the insert 30 to move along the second direction Y until the insert 30 remains engaged with the first connector 10 and/or the second connector 20.

Thus, when the insert 30 is inserted into the mounting through hole 211 and the recess 111, the elastic member 40 may urge the insert 30 to move in the second direction Y so that the insert 30 abuts against the first connector 10 or the second connector 20, and thus the insert 30 may be prevented from being removed from the mounting through hole 211 and the recess 111.

Additionally, in some embodiments, the insert 30 may also be engaged with the first connector 10 and/or the second connector 20. Specifically, the insert 30 and the first connector 10 and/or the second connector 20 may be snapped together by means of a snap connection to prevent the insert 30 from being removed.

The utility model discloses embodiment's screw 200 is used for providing flight power for many rotor craft 1000, and many rotor craft 1000 can be unmanned aerial vehicle. The propeller 200 comprises a first attachment 10 and a blade 201 attached to the first attachment 10, the first attachment 10 being intended to cooperate with the insert 30 and with the second attachment 20 of the power unit 300. One of the first connector 10 and the second connector 20 is provided with a convex portion 11, the other one of the first connector 10 and the second connector 20 is provided with a receiving portion 21, the receiving portion 21 is provided with a mounting through hole 211 penetrating along the first direction X, the convex portion 11 is provided with a concave portion 111, the convex portion 11 is at least partially mounted in the receiving portion 21 along the second direction Y, and the concave portion 111 of the convex portion 11 corresponds to the through hole. The insert 30 is inserted into the mounting through hole 211 and the recess 111, and the insert 30 restricts the protrusion 11 and the receiving portion 21 from being separated from each other along the second direction Y, which intersects with the first direction X.

In the propeller 200 of the above embodiment, since the insert 30 is inserted and locked in the mounting through hole 211 and the recess 111, on one hand, when the first connection member 10 or the second connection member 20 rotates, torque can be transmitted through the insert 30, and on the other hand, tension can be transmitted through the insert 30, thereby preventing the first connection member 10 and the second connection member 20 from being separated from each other, and improving the reliability of connection.

The power device 300 of the embodiment of the present invention includes a rotor and a second connecting member 20 rotating together with the rotor, the second connecting member 20 being adapted to cooperate with the insert 30 and the first connecting member 10 of the propeller 200;

one of the first connecting piece 10 and the second connecting piece 20 is provided with a convex part 11, the other one of the first connecting piece 10 and the second connecting piece 20 is provided with a receiving part 21, the receiving part 21 is provided with a mounting through hole 211 penetrating along the first direction X, the convex part 11 is provided with a concave part 111, the convex part 11 is at least partially mounted in the receiving part 21 along the second direction Y, and the concave part 111 of the convex part 11 corresponds to the through hole;

In the power device 300 of the above embodiment, since the insert 30 is inserted and locked in the mounting through hole 211 and the recess 111, on one hand, when the first connecting member 10 or the second connecting member 20 rotates, torque can be transmitted through the insert 30, and on the other hand, pulling force can be transmitted through the insert 30, thereby preventing the first connecting member 10 and the second connecting member 20 from being separated from each other, and improving the reliability of connection. The power device 300 includes, but is not limited to, an outer rotor motor and an inner rotor motor.

The utility model discloses power assembly 600 of embodiment includes power device 300 in any above-mentioned embodiment and the quick detach coupling assembling 100 in any above-mentioned embodiment, and second connecting piece 20 is installed at power device 300, and first connecting piece 10 is connected with screw 200.

Specifically, the power device 300 includes a limiting shaft, and the limiting shaft penetrates through the quick-release connecting assembly 100. The power device 300 may be a motor, and when the power device 300 is a motor, the limiting shaft is a motor shaft 301, and the second connecting member 20 may be connected to a rotor of the motor, such that the second connecting member 20 is driven to rotate by the rotation, and the insert 30 may drive the first connecting member 10 to rotate, thereby driving the blades 201 of the propeller 200 to rotate.

In the power assembly of the above embodiment, since the insert 30 is inserted and locked in the mounting through hole 211 and the recess 111, on one hand, when the first connecting member 10 or the second connecting member 20 rotates, torque can be transmitted through the insert 30, and on the other hand, pulling force can be transmitted through the insert 30, thereby preventing the first connecting member 10 and the second connecting member 20 from being separated from each other, and improving the reliability of connection.

Referring to fig. 7, a multi-rotor aircraft 1000 according to an embodiment of the present invention includes a fuselage 400 and a horn 500, the horn 500 is connected to the fuselage 400, and the power assembly according to the above embodiment is mounted on the horn 500. Specifically in the illustrated embodiment, multi-rotor aircraft 1000 is a drone.

Specifically, multi-rotor aircraft 1000 includes a plurality of arms 500, each arm 500 having a power assembly including a propeller 200, wherein rotation of power assembly 300 causes rotation of propeller 200, thereby providing flight power to multi-rotor aircraft 1000.

In the multi-rotor aircraft 1000 of the above embodiment, since the insert 30 is inserted and locked in the mounting through hole 211 and the recess 111, on one hand, when the first connecting member 10 or the second connecting member 20 rotates, torque can be transmitted through the insert 30, and on the other hand, pulling force can be transmitted through the insert 30, so that the first connecting member 10 and the second connecting member 20 are prevented from being separated from each other, and the reliability of connection is improved.

Specifically, in the illustrated embodiment, the number of the power assemblies 600 is multiple, and the power assemblies include a first power assembly and a second power assembly (see fig. 7), wherein the power device 300 of the first power assembly is used for driving the propeller 200 to rotate in the clockwise direction, and the power device 300 of the second power assembly is used for driving the propeller 200 to rotate in the counterclockwise direction.

In order to avoid the user from erroneously mounting the propeller of the first power assembly on the power device of the second power assembly, or erroneously mounting the propeller of the second power assembly on the power device of the first power assembly, the embodiment of the present invention utilizes the mutual fitting relationship between the protrusion 11 and the accommodating portion 21, that is, the protrusion is adapted to the shape or/and size of the accommodating portion, so as to realize the "fool-proof" function. For example:

in one embodiment, the shape of the convex portion 11 of the first power assembly is different from the shape of the convex portion 11 of the second power assembly, so that the propeller 200 of the first power assembly can only be connected with the power device 300 of the first power assembly and can not be connected with the power device 300 of the second power assembly; therefore, the propeller 200 of the second power assembly can only be connected with the power device 300 of the second power assembly but not connected with the power device of the first power assembly, and the problem that the propeller is assembled incorrectly to cause aircraft explosion is avoided.

In one embodiment, the size of the protrusion 11 of the first power assembly is different from the size of the protrusion 11 of the second power assembly, so that the propeller 200 of the first power assembly can only be connected with the power device 300 of the first power assembly and can not be connected with the power device 300 of the second power assembly; therefore, the propeller 200 of the second power assembly can only be connected with the power device 300 of the second power assembly but not connected with the power device of the first power assembly, and the problem that the propeller is assembled incorrectly to cause aircraft explosion is avoided. The dimension may be selected based on the shape of the protrusion, for example, the dimension may be a length, a width, a radius, or a curvature.

In addition, in order to avoid the user to install the screw of first power component on the power device of second power component by mistake, perhaps, install the screw of second power component on the power device of first power component by mistake, the utility model discloses an embodiment can also utilize the relation of mutually supporting in spacing axle of power device and the spacing hole of screw, promptly, spacing axle with the shape or/and the size looks adaptation in spacing hole to realize "prevent staying" the function. For example:

in one embodiment, the shape of the limiting shaft of the first power assembly is different from that of the limiting shaft of the second power assembly, so that the propeller of the first power assembly can only be connected with the power device of the first power assembly but not with the power device of the second power assembly; therefore, the propeller of the second power assembly can only be connected with the power device of the second power assembly but not connected with the power device of the first power assembly, and the problem that the aircraft explodes due to the assembling error of the propeller is further avoided.

In one embodiment, the size of the limiting shaft of the first power assembly is different from that of the limiting shaft of the second power assembly, so that the propeller of the first power assembly can only be connected with the power device of the first power assembly but not with the power device of the second power assembly; therefore, the propeller of the second power assembly can only be connected with the power device of the second power assembly but not connected with the power device of the first power assembly, and the problem that the aircraft explodes due to the assembling error of the propeller is further avoided.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quick release connection assembly for connecting a propeller and a power plant, the quick release connection assembly comprising a first connector, a second connector and an insert, one of the first connector and the second connector being for mechanical coupling with the propeller and the other being for mechanical coupling with the power plant;

2. The quick release connecting assembly according to claim 1, wherein the first connecting member is provided with the protrusion, the second connecting member is provided with the receiving portion, the second connecting member includes a mounting seat, the receiving portion is protruded from the mounting seat, and the mounting seat is used for being mounted on the power device.

3. The quick release connection assembly of claim 2, wherein the mounting seat defines a mounting seat through hole, the mounting seat through hole accommodates an elastic member, and the elastic member compresses the insert between the mounting through hole and the recess.

4. The quick release connecting assembly according to claim 3, wherein the insert is elongated, the insert is provided with a first locking portion and a second locking portion protruding from two ends of the insert along the length direction of the insert, the elastic member presses the insert toward the first connecting member, and the first locking portion and the second locking portion are clamped on the outer wall of the receiving portion.

5. The quick release connecting assembly according to claim 4, wherein the insert comprises a body and two clamping arms connected to one end of the body, the two clamping arms are arranged at intervals, the first clamping portion is arranged at one end of the body opposite to the clamping arms, and the second clamping portion is arranged at one end of the clamping arms opposite to the body.

6. The quick release connection assembly of claim 1, wherein the insert comprises a spring catch;

or, the first direction is perpendicular to the second direction;

7. The quick release connection assembly according to claim 1, wherein the insert is provided with a limiting portion for cooperating with the first connector and/or the second connector to prevent the insert from being removed from the mounting through hole and/or the recess.

8. The quick release connection assembly of claim 7, comprising a resilient member for providing a resilient force to the insert to maintain the insert in engagement with the first connector and/or the second connector.

9. A propeller for providing flight power to a multi-rotor aircraft, the propeller comprising the first link of the quick release connection assembly of any one of claims 1-8 and a blade connected to the first link.

10. A power plant, characterized in that, the second connecting piece of the quick-release connecting assembly of any claim 1-8 is comprised of a rotor, and the second connecting piece rotates along with the rotor.

11. A power assembly, characterized by, including the quick detach coupling assembling of any claim 1 ~ 8, screw and power device, the second connecting piece is installed at the power device, first connecting piece with the screw is connected.

12. A multi-rotor aircraft comprising a fuselage and a horn, the horn coupled to the fuselage, the horn having mounted thereon the power assembly of claim 11.

13. The rotary wing aircraft of claim 12, wherein the plurality of power assemblies comprises a first power assembly having a power plant configured to drive the propeller in a clockwise direction and a second power assembly having a power plant configured to drive the propeller in a counter-clockwise direction.

14. The multi-rotor aerial vehicle of claim 13, wherein the shape of the lobe of the first power assembly is different than the shape of the lobe of the second power assembly.

15. The multi-rotor aerial vehicle of claim 13, wherein the lobes of the first power assembly are not the same size as the lobes of the second power assembly.