CN106986017B - Screw rapid assembling and disassembling structure and unmanned aerial vehicle - Google Patents
Screw rapid assembling and disassembling structure and unmanned aerial vehicle Download PDFInfo
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- CN106986017B CN106986017B CN201710141975.XA CN201710141975A CN106986017B CN 106986017 B CN106986017 B CN 106986017B CN 201710141975 A CN201710141975 A CN 201710141975A CN 106986017 B CN106986017 B CN 106986017B
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- 230000013011 mating Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
- B64U30/20—Rotors; Rotor supports
- B64U30/29—Constructional aspects of rotors or rotor supports; Arrangements thereof
- B64U30/291—Detachable rotors or rotor supports
- B64U30/292—Rotors or rotor supports specially adapted for quick release
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a propeller quick assembly and disassembly structure and an unmanned aerial vehicle. The screw propeller rapid assembly and disassembly structure comprises a screw propeller and a positioning assembly, wherein the screw propeller comprises a screw propeller main body and blades; the propeller main body is provided with a positioning hole, and the inner edge of the positioning hole is provided with a propeller disassembly surface; the positioning component comprises a positioning piece and an elastic piece, and the positioning piece comprises a positioning part; the positioning piece has a working mode and a disassembly mode; in the working mode, the positioning part is matched with the positioning hole; in the removal mode, the positioning member moves in a direction away from the positioning hole. One application of the propeller quick assembly and disassembly structure of the present invention is for use in unmanned aerial vehicles.
Description
Technical Field
The invention relates to the field of quick assembly and disassembly structures, in particular to a quick assembly and disassembly structure of a propeller and an unmanned aerial vehicle.
Background
With the rapid development of technology for small aircraft, in particular unmanned aircraft, there is an increasing demand for small aircraft.
The propeller is an important component of a small aircraft and occupies a large space in the whole aircraft. The existing fixation mode of the propeller and the motor of the aircraft is generally realized by adopting a threaded fit mode or a mode of fixing the propeller and the motor by using screws.
However, the existing fixing mode of the propeller and the motor is inconvenient to assemble and disassemble, and greatly influences user experience and convenience in use.
Disclosure of Invention
The invention aims to provide a novel technical scheme of a fast assembly and disassembly structure of a propeller.
According to a first aspect of the present invention, there is provided a propeller quick-release structure.
The rapid assembly and disassembly structure of the propeller comprises the propeller and a positioning component, wherein,
the propeller comprises a propeller main body and blades;
the screw propeller main body is provided with a positioning hole, and the inner edge of the positioning hole is provided with a screw propeller dismounting surface;
the positioning assembly comprises a positioning piece and an elastic piece, and the positioning piece comprises a positioning part;
the elastic member is configured to provide an elastic force to the positioning member so that the positioning member moves in a direction approaching or moving away from the positioning hole;
the positioning piece is provided with a working mode and a dismounting mode;
in the working mode, the positioning part is matched with the positioning hole to fix the propeller;
in the disassembly mode, the positioning piece moves along a direction away from the positioning hole, so that the positioning part is separated from the positioning hole from the screw disassembly surface.
Optionally, a disassembly slide way is further arranged on the propeller main body, and the disassembly slide way is connected with the propeller disassembly surface;
the depth of the disassembly slideway is gradually reduced along the direction away from the positioning hole;
a disengaging part is arranged at one end of the disassembly slide way, which is far away from the positioning hole, and the disengaging part is used for enabling the positioning part to leave the disassembly slide way;
in the disassembly mode, the positioning portion enters the disassembly slide from the propeller disassembly surface.
Optionally, an elastic piece positioning hole is formed in the positioning piece;
the elastic piece is a spring, and one end of the spring is positioned in the elastic piece positioning hole.
Optionally, the inner edge of locating hole still is equipped with the screw and dismantles spacing portion, the screw is dismantled spacing portion and is set up to be used for right the locating part is followed the screw dismantles the face and leaves the position of locating hole is spacing.
Optionally, the positioning assembly further comprises a base;
a lower positioning groove is formed in the base;
the locating piece is provided with a sliding part which is in sliding fit with the lower locating groove, so that the locating piece moves along the direction close to or far away from the locating hole.
Optionally, the lower positioning groove comprises a lower arc-shaped section;
the shape of the sliding part is matched with the shape of the lower arc-shaped section.
Optionally, the positioning assembly further comprises a top seat and a connecting piece, wherein the connecting piece is used for connecting the base seat and the top seat;
an upper positioning groove is formed in the top seat;
the upper positioning groove is correspondingly arranged with the lower positioning groove, and the sliding part is in sliding fit with the upper positioning groove.
Optionally, a support column is arranged on the top seat;
the propeller main body is provided with a supporting sleeve, and the supporting column is matched with the supporting sleeve.
Optionally, the positioning assembly further comprises a supporting elastic piece, and the supporting elastic piece is connected with the top seat;
the supporting spring piece comprises an elastic supporting part;
the propeller main body is provided with a matching part;
the elastic supporting portion is matched with the matching portion to support the propeller main body.
According to a second aspect of the invention, an unmanned aerial vehicle is provided.
The unmanned aerial vehicle driving motor and the propeller rapid assembling and disassembling structure of the invention, wherein,
the positioning assembly is mounted on the drive motor.
The present inventors have found that the conventional technique does have a problem in that the propeller is not easily attached and detached. The technical task to be achieved or the technical problem to be solved by the present invention is therefore a new technical solution, which has never been conceived or not yet been contemplated by the person skilled in the art.
The positioning piece of the screw propeller quick assembly and disassembly structure can move under the action of the elastic force of the elastic piece, the positioning part is matched with the positioning hole on the screw propeller main body in the working mode of the positioning piece, the screw propeller is fixed on the positioning component at the moment, and the paddles can rotate; the locating piece is under the dismantlement mode, and the locating part leaves the locating hole of screw main part, but the screw was dismantled from the locating component this moment.
The rapid assembling and disassembling structure of the propeller is rapid and convenient to assemble and disassemble, and is beneficial to improving the use convenience of a small aircraft.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is an exploded schematic view of a propeller quick release structure and an embodiment of an unmanned aerial vehicle of the present invention.
Fig. 2 is a schematic view of a propeller embodiment of the quick release structure of the propeller of the present invention.
Fig. 3 is a partial enlarged view of fig. 2.
Fig. 4 is a schematic view of a propeller body embodiment of the quick release structure of the propeller of the present invention.
Fig. 5 is a schematic view of an embodiment of a positioning assembly of a fast assembly and disassembly structure of a propeller of the present invention.
Fig. 6 is a schematic view of a positioning member of a fast assembling and disassembling structure of a propeller according to an embodiment of the present invention.
Fig. 7 is a schematic view of a base of the fast assembly and disassembly structure of the propeller of the present invention.
Fig. 8 is a schematic view of a top base of the fast assembly and disassembly structure of the propeller of the present invention.
Fig. 9 is a schematic structural view of an embodiment of the unmanned aerial vehicle of the present invention.
The figures are marked as follows:
the screw comprises a screw blade-1, a screw blade main body-11, a positioning hole-111, a screw blade detaching surface-1111, a screw blade detaching limit part-1112, a detaching slide way-112, a detaching part-1121, a supporting sleeve-113, a matching part-114, a blade-12, a positioning piece-2, a positioning part-21, a bevel-211, an elastic piece positioning hole-22, a sliding part-23, an elastic piece-3, a base-4, a lower positioning groove-41, a lower arc-shaped section-411, a top seat-5, an upper positioning groove-51, an upper arc-shaped section-511, a supporting column-52, a connecting piece-6, a supporting spring piece-7, an elastic supporting part-71 and a driving motor-8.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In order to solve the problem of inconvenient assembly and disassembly of the propeller, the invention provides a rapid assembly and disassembly structure of the propeller.
As shown in fig. 1 to 8, the propeller quick-attach/detach structure includes a propeller 1 and a positioning assembly, wherein the propeller 1 includes a propeller main body 11 and blades 12. The blades 12 are connected to the propeller body 11.
The propeller main body 11 is provided with a positioning hole 111, and the inner edge of the positioning hole 111 is provided with a propeller dismounting surface 1111. The propeller removal surface 1111 is provided for removing the propeller 1.
The positioning assembly comprises a positioning member 2 and an elastic member 3, wherein the positioning member 2 comprises a positioning portion 21. The positioning member 2 is used for fixing the propeller 1. The positioning assembly can be mounted on a power source of the small aircraft by means of structural fit and the like, and the power source can be a motor and the like.
The positioning portion 21 may be provided with a chamfer 211. This provision of the chamfer 211 facilitates easier assembly of the propeller 1 and the positioning assembly, and allows the positioning portion 21 to enter the positioning hole 111 more easily. In addition, the provision of the chamfer 211 is also advantageous in increasing the binding force between the positioning portion 21 and the positioning hole 111, preventing the positioning portion 21 from being uncontrollably separated from the positioning hole 111 when being mated with the positioning hole 111.
The elastic member 3 is provided for providing an elastic force to the positioning member 2 so that the positioning member 2 moves in a direction approaching or moving away from the positioning hole 111. The elastic element 3 can be realized by a spring or a spring piece or a spring arm and other structures. The positional relationship or the connection relationship between the elastic member 3 and the positioning member 2 can be selected according to actual requirements. For example, the elastic member 3 may be connected to the positioning member 2 by a fixed connection such as welding. Alternatively, one end of the elastic member 3 may abut against the positioning member 2, so that the elastic member 3 provides an elastic force to the positioning member 2.
It will be readily apparent to those skilled in the art that the number of positioning members 2 and elastic members 3 may be set according to actual needs, for example, one set of positioning members 2 and elastic members 3 may be provided, or two sets of positioning members 2 and elastic members 3 may be provided, or more positioning members 2 and elastic members 3 may be provided. The number of positioning holes 111 generally corresponds to the number of positioning members 2. When the positioning member 2 and the elastic member 3 are two sets, alternatively, the two sets of positioning member 2 and elastic member 3 are mirror symmetrical.
The positioning member 2 has an operating mode and a dismounting mode.
In the operation mode, the positioning portion 21 cooperates with the positioning hole 111 to fix the propeller 1. The cooperation between the positioning portion 21 and the positioning hole 111 may enable the positioning member 2 to be connected to the propeller body 11, thereby fixing the propeller 1 to the positioning assembly. In this way, the positioning assembly may transmit power to the propeller 1, causing the propeller 1 to rotate.
In the operating mode, the propeller 1 can be rotated by the power source of the small aircraft. When the propeller 1 rotates, the positioning portion 21 is located in the positioning hole 111, and the positioning portion 21 transmits power to the surface of the positioning hole 111 along the opposite side to the propeller removing surface 1111, thereby pushing the propeller 1 to rotate.
In the disassembly mode, the positioning member 2 is moved in a direction away from the positioning hole 111 so that the positioning portion 21 is separated from the positioning hole 111 from the propeller disassembly surface 1111.
In the disassembly mode, the positioning portion 21 is separated from the positioning hole 111, and the propeller 1 can be separated from the positioning assembly at this time, so that the propeller 1 can be disassembled. After leaving the positioning hole 111 from the propeller removing surface 1111, the positioning portion 21 may optionally slide along the inner wall of the propeller main body 11 so as to leave the propeller 1. The propeller removal surface 1111 may be, for example, a bevel to facilitate the removal of the positioning portion 21 from the positioning hole 111. The inclined surface may optionally extend in a direction in which the positioning portion 21 leaves the positioning hole 111.
The positioning piece 2 of the rapid assembly and disassembly structure of the propeller can move under the action of the elastic force of the elastic piece 3. In the operation mode of the positioning member 2, the positioning portion 21 is engaged with the positioning hole 111 of the propeller main body 11, and the propeller 1 is fixed to the positioning assembly, and the blade 12 is rotatable. In the dismounting mode, the positioning part 21 is separated from the positioning hole 111 of the propeller main body 11, and the propeller 1 can be dismounted from the positioning assembly.
The rapid assembling and disassembling structure of the propeller is rapid and convenient to assemble and disassemble, and is beneficial to improving the use convenience of a small aircraft.
In one embodiment of the rapid rotor assembly and disassembly structure according to the present invention, as shown in fig. 4, a disassembly slide 112 is further provided on the rotor body 11, and the disassembly slide 112 is connected to the rotor disassembly surface 1111. Typically, the junction between the dismounting slide 112 and the propeller dismounting surface 1111 is a smooth transition, and the direction of extension of the dismounting slide 112 is the direction opposite to the direction of rotation of the propeller 1. After the positioning portion 21 leaves the positioning hole 111 from the propeller removing surface 1111, it can enter the removing slide 112, and can leave the propeller main body 11 from the removing slide 112. Optionally, the positioning portion 21 is in sliding engagement with the dismounting slide 112.
The depth of the dismounting slide 112 gradually decreases in a direction away from the positioning hole 111.
The end of the dismounting slide 112 remote from the positioning hole 111 is provided with a disengaging portion 1121, the disengaging portion 1121 being provided for the positioning portion 21 to leave the dismounting slide 112.
The disengagement 1121 can be implemented in a variety of ways. For example, the detachment portion 1121 is the end of the detachment slide 112, which is the portion of the detachment slide 112 having the smallest depth, and when the positioning portion 21 enters the detachment portion 1121, the detachment slide 112 can be slid out of the detachment portion 1121, thereby separating the propeller 1 from the positioning assembly. Alternatively, the detachment portion 1121 is a guide groove extending in a direction perpendicular to a sliding direction of the positioning portion 21 in the detachment slide 112, and when the positioning portion 21 slides in the detachment slide 112 to the detachment portion 1121, the detachment slide 112 may be separated from the detachment portion 1121, thereby separating the propeller from the positioning assembly.
In the removal mode, the positioning portion 21 enters the removal slide 112 from the propeller removal surface 1111. The positioning portion 21 slides in the dismounting slide 112, and the disengaging portion 1121 of the self-dismounting slide 112 is separated from the propeller main body 11.
The dismounting slide way 112 is beneficial to further improving the convenience of the rapid dismounting structure of the propeller of the invention in dismounting and using.
In another embodiment of the quick release structure of the propeller of the present invention, the positioning member 2 is provided with an elastic member positioning hole 22. The elastic member 3 is a spring, and one end of the spring is located in the elastic member positioning hole 22. The spring may be, for example, a compression spring.
In this embodiment, the elastic member 3 and the elastic member positioning hole 22 may be connected together by welding or the like. Alternatively, the elastic member 3 and the elastic member positioning hole 22 are not connected, and only the end of the elastic member 3 is in contact with the elastic member positioning hole 22.
In still another embodiment of the rapid assembly and disassembly structure of the propeller of the present invention, as shown in fig. 2 and 3, the inner edge of the positioning hole 111 is further provided with a propeller disassembly limiting portion 1112. The propeller removal limiting portion 1112 is provided for limiting the position at which the positioning portion 21 is separated from the positioning hole 111 from the propeller removal surface 1111.
The propeller removal stop 1112 can be implemented in a variety of ways. For example, the propeller removal stopper 1112 is a boss extending from the surface of the propeller removal surface 1111 toward the positioning member 2. The bosses may be located at both ends of the propeller disassembly surface 1111 in the width direction. In use, the propeller 1 is lifted or pressed down, so that the propeller disassembly limiting portion 1112 is staggered from the positioning portion 21 of the positioning member 2, and the positioning portion 21 is opposite to the propeller disassembly surface 1111, so that the positioning portion 21 can be separated from the positioning hole 111 from the propeller disassembly surface 1111.
When the propeller 1 is operated, the propeller disassembly limiting portion 1112 may limit the positioning portion 21 to prevent the positioning portion 21 from uncontrollably entering the propeller disassembly surface 1111. The limiting between the screw dismounting limiting portion 1112 and the positioning portion 21 can be achieved by abutting the screw dismounting limiting portion 1112 against the positioning portion 21.
When the propeller 1 is detached, the positioning portion 21 is required to be separated or displaced from the propeller detachment limiting portion 1112 by applying a force to the propeller 1 or applying a force to the positioning member 2, so that the positioning portion 21 can be separated from the positioning hole 111 from the propeller detachment surface 1111. In a further embodiment of the quick release structure of the propeller of the present invention, the positioning assembly further comprises a base 4. The base 4 can be mounted on the power source of the small aircraft by bolting or welding.
The base 4 is provided with a lower positioning groove 41. The shape of the lower positioning groove 41 may be set according to practical requirements, for example, the lower positioning groove 41 may be a rectangular groove or an arc groove, etc.
The positioning member 2 is provided with a sliding portion 23, and the sliding portion 23 is slidably engaged with the lower positioning groove 41 so that the positioning member 2 moves in a direction approaching or separating from the positioning hole 111. The sliding portion 23 may be an outer surface of the positioning member 2 corresponding to the lower positioning groove 41, or the sliding portion 23 may be a protrusion or the like on an outer surface of the positioning member 2 corresponding to the lower positioning group groove 41.
In this embodiment, the provision of the base 4 facilitates more convenient mounting of the positioning assembly on the power source. The provision of the lower positioning groove 41 and the sliding portion 23 is advantageous in increasing the flexibility of movement of the positioning member 2.
Further, the lower detent 41 includes a lower arcuate segment 411. The shape of the sliding portion 23 matches the shape of the lower arc segment 411. Thus, the sliding portion 23 can move along the lower arc-shaped section 411, so that the positioning member 2 moves in a direction approaching or moving away from the positioning hole 111.
In practice, as shown in fig. 7, the lower positioning groove 41 may include a plurality of segments of different shapes, and the elastic member 3 and the positioning member 2 may each be located within the lower positioning groove 41. In addition, the depth of the lower arc-shaped section 411 may be greater than the remainder of the lower detent 41, such that a step is formed between the lower arc-shaped section 411 and the remainder of the lower detent 41, which is advantageous for retaining the slider 23 within the lower arc-shaped section 411.
In still another embodiment of the rapid disassembly structure of the propeller of the present invention, as shown in fig. 8, the positioning assembly further includes a top chassis 5 and a connection member 6, the connection member 6 being provided for connecting the base 4 and the top chassis 5.
The connecting member 6 may be, for example, a bolt or a screw or a positioning pin, etc., and the connecting member 6 sequentially passes through the base 4 and the top chassis 5, thereby connecting the base 4 and the top chassis 5 together. In addition, the top base 5 may be positioned on the base 4 by pin hole fitting or the like to more reliably fix the base 4 and the top base 5 together. The number of the connecting members 6 may be set according to actual requirements, for example, as shown in fig. 1, the connecting members 6 are four pieces.
The top seat 5 is provided with an upper positioning groove 51. The upper positioning groove 51 is provided corresponding to the lower positioning groove 41, and the sliding portion 23 is slidably engaged with the upper positioning groove 51. That is, the sliding portion 23 is slidably engaged with the upper and lower positioning grooves 51 and 41.
Alternatively, the upper and lower positioning grooves 51 and 41 may together constitute an annular structure with which the sliding portion 23 is slidably fitted.
Further, the shape of the upper positioning groove 51 may be the same as the shape of the lower positioning groove 41. That is, the upper and lower positioning grooves 51 and 41 are mirror-symmetrical.
In particular, the upper positioning slot 51 may include an upper arc-shaped section 511, and the upper arc-shaped section 511 and the lower arc-shaped section 411 may form an annular hole, and the sliding portion 23 may be an annular protrusion disposed on an outer surface of the positioning member 2, and the sliding portion 23 is slidably engaged with the annular hole.
Further, a support column 52 is provided on the top base 5. The propeller main body 11 is provided with a supporting sleeve 113, and the supporting column 52 is matched with the supporting sleeve 113, so that the positioning assembly supports the propeller 1.
Optionally, as shown in fig. 1, the positioning assembly further includes a supporting spring 7, and the supporting spring 7 is connected to the top seat 5. The connection between the supporting spring 7 and the top seat 5 can be achieved in various manners, for example, the supporting spring 7 is connected with the top seat 5 through welding, or through a bolt, or a positioning protrusion is arranged on the top seat 5, and a positioning hole matched with the positioning protrusion is arranged on the supporting spring 7. The number of the supporting spring plates 7 can be set according to practical requirements, for example, as shown in fig. 1, the number of the supporting spring plates 7 is two.
The supporting spring 7 includes an elastic supporting portion 71, and a fitting portion 114 is provided on the propeller main body 11. The elastic supporting portion 71 is engaged with the engaging portion 114 to support the propeller main body 11. The provision of the elastic support portion 71 and the engagement portion 114 is advantageous in that the support dome 7 provides an elastic force to the propeller 1, thereby preventing uncontrolled dislocation or movement of the propeller 1.
The elastic supporting portion 71 and the fitting portion 114 may be implemented in various ways. For example, the elastic supporting portion 71 is a flange on the supporting spring 7, and the mating portion 114 is a groove on the propeller main body 11. Alternatively, the elastic support portion 71 is an elastic arm extending toward the propeller 1 on the support spring 7, and the engagement portion 114 is a boss on the propeller body 11, and the elastic support portion 71 provides an elastic force toward the propeller 1 to the propeller 1 by engagement of the elastic arm with the boss.
In one embodiment of the rapid assembly and disassembly structure of the propeller of the present invention, as shown in fig. 1, the propeller 1 includes a propeller body 11 and blades 12, and the propeller body 11 has a tubular structure. Two positioning holes 111 are formed in the side wall of the propeller main body 11, and a propeller dismounting surface 1111 is formed in the inner edge of each positioning hole 111. The propeller disassembly surface 1111 is an inclined surface, and the size of the opening of the positioning hole 111 on the outer surface of the side wall of the propeller main body 11 is larger than the size of the opening of the positioning hole 111 on the inner surface of the side wall of the propeller main body 11.
The inner surface of the side wall of the propeller main body 11 is also provided with a supporting sleeve 113, two dismounting slide ways 112 and two matching parts 114. The two dismounting slides 112 are respectively connected with the propeller dismounting faces 1111 of the two positioning holes 111. The junction between the dismounting slide 112 and the propeller dismounting surface 1111 is a smooth transition, and the extension direction of the dismounting slide 112 is the direction opposite to the rotation direction of the propeller 1. The depth of the dismounting slide 112 gradually decreases in a direction away from the positioning hole 111, and the tip of the dismounting slide 112 smoothly transitions with the inner surface of the side wall of the propeller main body 11. In this embodiment, the mating portion 114 is a protrusion on the inner surface of the sidewall of the propeller body 11.
The positioning component comprises a positioning piece 2, an elastic piece 3, a base 4, a top seat 5, a connecting piece 6 and a supporting elastic piece 7. The positioning piece 2 and the elastic piece 3 comprise two sets, the positioning piece 2 is provided with an elastic piece positioning hole 22, and one end of the elastic piece 3 is positioned in the elastic piece positioning hole 22. In this embodiment, the elastic member 3 is a compression spring, and the elastic member 3 may provide the elastic force to the positioning member 2 so that the positioning member 2 moves in a direction approaching or moving away from the positioning hole 111.
The positioning piece 2 comprises a positioning part 21 and a sliding part 23, wherein the positioning part 21 is provided with a chamfer 211, and the sliding part 23 is a circumferential bulge on the outer surface of the positioning piece 2. In this embodiment, the chamfer 211 extends in a downward direction, that is, the height of the positioning portion 21 gradually decreases in the downward direction. The above "downward" refers to a direction away from the propeller 1.
The base 4 is provided with a lower positioning groove 41, and the top seat 5 is provided with an upper positioning groove 51. The lower positioning groove 41 and the upper positioning groove 51 are correspondingly arranged, and together form an annular structure for limiting the positioning piece 2, and the elastic piece 3 is also positioned in the annular structure. The lower positioning groove 41 comprises a lower arc-shaped section 411, the upper positioning groove 51 comprises an upper arc-shaped section 511, the lower arc-shaped section 411 and the upper arc-shaped section 511 form an annular hole, and the sliding part 23 is in sliding fit with the annular hole. The sliding travel of the sliding portion 23 in the annular hole is the moving travel of the positioning member 2.
The top seat 5 is provided with a support column 52, and the support column 52 is matched with the support sleeve 113.
The connecting piece 6 is a bolt which penetrates through the base 4, the top seat 5 and the supporting elastic piece 7, and the base 4, the top seat 5 and the supporting elastic piece 7 are fixed on a power source of the small aircraft.
The supporting spring 7 includes an elastic supporting portion 71, and the elastic supporting portion 71 cooperates with the mating portion 114 to support the propeller main body 11.
The positioning member 2 has an operating mode and a dismounting mode.
In the operating mode, the positioning portion 21 cooperates with the positioning hole 111 to fix the propeller 1 to the positioning assembly. In this way, the positioning assembly can transmit power to the propeller 1.
In the operating mode, the propeller 1 is rotatable under the drive of the power source. In this embodiment, the rotation direction of the propeller 1 is clockwise.
In the detaching mode, the positioning portion 21 of the positioning member 2 is separated from the positioning hole 111 from the propeller detaching surface 1111, and the compression amount of the elastic member 3 is maximized. The positioning portion 21 enters the dismounting slide 112 after leaving the positioning hole 111, and along with the gradual stretching of the elastic member 3, the positioning portion 21 slides along the dismounting slide 112 and slides out of the dismounting slide 112 from the end of the dismounting slide 112. At this time, the propeller 1 can be detached from the positioning assembly. In this embodiment, the direction of extension of the removal slide 112 is counter-clockwise.
In this embodiment, when assembling the propeller 1 with the positioning assembly, the propeller 1 is placed on the positioning assembly, and then a force perpendicular to the rotation direction thereof is applied to the propeller 1, which is transmitted from the propeller 1 to the positioning member 2, and the positioning member 2 presses the contractive member 3, thereby causing the positioning portion 21 to enter the positioning hole 111. After the positioning part 21 enters the positioning hole 111, the positioning piece 2 moves towards the direction of the positioning hole 111 under the action of the elastic force of the elastic piece 3, so that the propeller 1 and the positioning assembly are reliably assembled together.
As shown in fig. 1 and 9, the present invention also provides an unmanned aerial vehicle.
The unmanned aerial vehicle comprises a driving motor 8 and the propeller quick assembly and disassembly structure. The propeller quick-release structure is mounted on the drive motor 8. In practice, the positioning assembly may be mounted on the drive motor 8 via the connection 6. More specifically, the positioning assembly is fixed to the mover of the driving motor 8 by means of the connection 6.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. A rapid assembling and disassembling structure of a propeller is characterized by comprising the propeller and a positioning component, wherein,
the propeller comprises a propeller main body and blades;
the screw propeller main body is provided with a positioning hole, and the inner edge of the positioning hole is provided with a screw propeller dismounting surface;
the positioning assembly comprises a positioning piece and an elastic piece, and the positioning piece comprises a positioning part;
the elastic member is configured to provide an elastic force to the positioning member so that the positioning member moves in a direction approaching or moving away from the positioning hole;
the positioning piece is provided with a working mode and a dismounting mode;
in the working mode, the positioning part is matched with the positioning hole to fix the propeller;
in the disassembly mode, the positioning piece moves along a direction away from the positioning hole so that the positioning part is separated from the positioning hole from the screw disassembly surface;
the positioning assembly further comprises a base;
a lower positioning groove is formed in the base;
the positioning piece is provided with a sliding part which is in sliding fit with the lower positioning groove so that the positioning piece moves along the direction approaching or separating from the positioning hole;
and the positioning part is provided with a chamfer.
2. The propeller quick assembly disassembly structure according to claim 1, wherein a disassembly slide is further provided on the propeller main body, and the disassembly slide is connected with the propeller disassembly surface;
the depth of the disassembly slideway is gradually reduced along the direction away from the positioning hole;
a disengaging part is arranged at one end of the disassembly slide way, which is far away from the positioning hole, and the disengaging part is used for enabling the positioning part to leave the disassembly slide way;
in the disassembly mode, the positioning portion enters the disassembly slide from the propeller disassembly surface.
3. The propeller quick assembly disassembly structure according to claim 1, wherein the positioning member is provided with an elastic member positioning hole;
the elastic piece is a spring, and one end of the spring is positioned in the elastic piece positioning hole.
4. The propeller quick assembly disassembly structure according to claim 1, wherein the inner edge of the positioning hole is further provided with a propeller disassembly limit portion, and the propeller disassembly limit portion is configured to limit a position at which the positioning portion leaves the positioning hole from the propeller disassembly surface.
5. The propeller quick release structure of any one of claims 1 to 4, wherein the lower detent includes a lower arcuate segment;
the shape of the sliding part is matched with the shape of the lower arc-shaped section.
6. The propeller quick release structure of any one of claims 1 to 4, wherein the positioning assembly further comprises a top mount and a connector configured to connect the base and the top mount;
an upper positioning groove is formed in the top seat;
the upper positioning groove is correspondingly arranged with the lower positioning groove, and the sliding part is in sliding fit with the upper positioning groove.
7. The propeller quick assembly disassembly structure of claim 6, wherein the top base is provided with a support column;
the propeller main body is provided with a supporting sleeve, and the supporting column is matched with the supporting sleeve.
8. The propeller quick release structure of claim 6, wherein the positioning assembly further comprises a support spring, the support spring being connected to the top mount;
the supporting spring piece comprises an elastic supporting part;
the propeller main body is provided with a matching part;
the elastic supporting portion is matched with the matching portion to support the propeller main body.
9. An unmanned aerial vehicle comprising a drive motor and a propeller quick-release structure as claimed in any one of claims 1 to 8, wherein,
the positioning assembly is mounted on the drive motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141975.XA CN106986017B (en) | 2017-03-10 | 2017-03-10 | Screw rapid assembling and disassembling structure and unmanned aerial vehicle |
| PCT/CN2017/080292 WO2018161406A1 (en) | 2017-03-10 | 2017-04-12 | Quick installation and removal structure for propeller, and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141975.XA CN106986017B (en) | 2017-03-10 | 2017-03-10 | Screw rapid assembling and disassembling structure and unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106986017A CN106986017A (en) | 2017-07-28 |
| CN106986017B true CN106986017B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710141975.XA Active CN106986017B (en) | 2017-03-10 | 2017-03-10 | Screw rapid assembling and disassembling structure and unmanned aerial vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106986017B (en) |
| WO (1) | WO2018161406A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808882A (en) * | 2017-11-20 | 2019-05-28 | 光宝电子(广州)有限公司 | Disassembly and assembly structure and unmanned plane |
| CN109764213B (en) * | 2019-02-15 | 2024-03-26 | 中山大山摄影器材有限公司 | Detachable quick connection device for camera equipment and camera equipment assembly |
| CN110053763A (en) * | 2019-04-18 | 2019-07-26 | 广西圣尧航空科技有限公司 | Unmanned plane propeller easy to repair |
| WO2021017004A1 (en) * | 2019-08-01 | 2021-02-04 | 深圳市大疆创新科技有限公司 | Locking structure, propeller, power device, power assembly, and unmanned aerial vehicle |
| CN115315388A (en) * | 2020-03-17 | 2022-11-08 | 深圳市大疆创新科技有限公司 | Rotor wing mounting assembly |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106986017A (en) | 2017-07-28 |
| WO2018161406A1 (en) | 2018-09-13 |
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