CN107878729B - Propeller assembly and unmanned aerial vehicle - Google Patents
Propeller assembly and unmanned aerial vehicle Download PDFInfo
- Publication number
- CN107878729B CN107878729B CN201711144895.6A CN201711144895A CN107878729B CN 107878729 B CN107878729 B CN 107878729B CN 201711144895 A CN201711144895 A CN 201711144895A CN 107878729 B CN107878729 B CN 107878729B
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- locking
- blade
- propeller
- ratchet
- block
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/02—Hub construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/02—Hub construction
- B64C11/04—Blade mountings
- B64C11/08—Blade mountings for non-adjustable blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/13—Propulsion using external fans or propellers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
The invention provides a propeller assembly, which comprises a propeller cap, a rotating block, a blade and a propeller bracket which can be fixedly connected with a motor, wherein the propeller cap is fixedly connected with the blade, an elastic piece is arranged between the propeller cap and the rotating block, the rotating block is inserted into the blade, the propeller bracket is inserted into the blade and can move up and down relatively between the blade and the blade, after being pressed, the rotating block performs downward spiral rotation in the blade, and a locking assembly for locking the rotating block is arranged between the rotating piece and the propeller bracket. The invention solves the problems of complicated self-locking or disassembling steps and inconvenient operation of the propeller assembly in the prior art.
Description
Technical Field
The invention relates to a propeller assembly and an improvement of an unmanned aerial vehicle structure.
Background
In recent years, consumer unmanned aerial vehicles are increasingly prosperous in market, and the consumer unmanned aerial vehicles are required to be operated as simply as possible due to the large difference of the technical levels of people facing the consumer unmanned aerial vehicles; taking an unmanned aerial vehicle propeller as an example, the unmanned aerial vehicle propeller needs to be installed when in use and can be detached when not in use; if the screw can realize quick assembly disassembly when using, will to a great extent make things convenient for the consumer, the use screw fixation that paddle mounting means on the present market was had, and the dismouting is inconvenient, and some quick detach paddles need press first, then rotate just can lock, also need press first when dismantling, then rotate just can dismantle, and auto-lock dismantles the problem that operation steps are loaded down with trivial details, inconvenient operation.
Disclosure of Invention
The invention provides a propeller assembly, which solves the problems of complicated self-locking or disassembly steps and inconvenient operation of the propeller assembly in the prior art.
In order to achieve the purpose of solving the technical problems, the invention adopts the technical proposal that the propeller component is realized by adopting the following steps:
the utility model provides a screw assembly, includes oar cap, dwang, paddle and can with motor fixed connection's screw support, the oar cap with paddle fixed connection be provided with the elastic component between the oar cap with the dwang, the dwang cartridge is in the paddle, screw support cartridge in the paddle with can relatively up-and-down motion between the paddle, after the pressurized, the dwang is the downward screw rotation in the paddle the rotating component with be provided with the locking subassembly to the dwang locking between the screw support.
The invention also provides an unmanned aerial vehicle, which comprises a motor and the propeller assembly in the technical scheme, wherein the propeller bracket is fixedly connected with the motor.
The invention also comprises the following additional technical characteristics:
further, the rotating block comprises a rotating cap and a hollow block arranged below the rotating cap, a plurality of ratchets are arranged at the bottom end of the hollow block along the circumference of the hollow block, a locking block is correspondingly arranged on every other ratchet, and the locking block is arranged on the inner side wall of the ratchet corresponding to the locking block.
Further, a mounting hole is formed in the blade, blade ratchets which can be matched with the ratchets are circumferentially arranged in the mounting hole, and a sliding groove is formed between two adjacent blade ratchets.
Further, the rotating block is inserted into the mounting hole of the blade and is pressed against the blade ratchet through the ratchet, and after being pressed, the ratchet moves spirally along the top surface of the blade ratchet.
Further, the screw support is including support body and the slip muscle that sets up along support body circumference, slip muscle cartridge is in the sliding tray, the top surface of slip muscle is formed by first inclined plane and second inclined plane, first inclined plane supports the bottom of leaning on the ratchet adjacent with blade ratchet complex ratchet.
Further, the locking component comprises a locking block arranged on the inner arm of the ratchet and a lock catch arranged on the support body, wherein the lock catch is arranged above the sliding rib and corresponds to the position of the sliding rib, a first locking surface is arranged on the locking block, a second locking surface is arranged on the lock catch, and during locking, the lock catch is pressed on the first locking surface through the second locking surface to lock the rotating piece.
Furthermore, the first locking surface and the second locking surface are inclined surfaces.
The invention has the following advantages and positive effects:
the invention provides a propeller assembly, which comprises a propeller cap, a rotating block, a blade and a propeller bracket which can be fixedly connected with a motor, wherein the propeller cap is fixedly connected with the blade, an elastic piece is arranged between the propeller cap and the rotating block, the rotating block is inserted into the blade, the propeller bracket is inserted into the blade and can move up and down relatively between the blade and the blade, after being pressed, the rotating block performs downward spiral rotation in the blade, and a locking assembly for locking the rotating block is arranged between the rotating piece and the propeller bracket. Through the screw assembly, the rotating block can rotate spirally downwards in the blade after the pressing acting force is applied, the rotating block is locked through the locking assembly after the rotating block rotates to a certain position, self-locking is realized, if the screw assembly is required to be disassembled, the screw cap can be pressed again, the acting force is transmitted to the rotating block, the rotating block moves spirally downwards along the blade again, the locking assembly arranged between the rotating piece and the blade bracket is unlocked, disassembly can be realized, the operation is simple and convenient, and simple disassembly or locking can be realized only by pressing once.
Drawings
FIG. 1 is an exploded view of the propeller assembly of the present invention;
FIG. 2 is a schematic view of the mating structure of the blade and the rotor block of the present invention
FIG. 3 is a cross-sectional view of a blade of the present invention;
FIG. 4 is a schematic view of the structure of the turning block of the present invention;
FIG. 5 is a block diagram of the present invention propeller support in cooperation with a motor;
FIG. 6 is a schematic view showing an initial state of the propeller assembly according to the present invention
FIG. 7 is a second schematic diagram of the operation state of the propeller assembly according to the present invention;
FIG. 8 is a third schematic view of the motion state of the propeller assembly according to the present invention
FIG. 9 is a schematic diagram of a fourth embodiment of the motion state of the propeller assembly of the present invention;
FIG. 10 is a schematic diagram showing an operational state of a propeller assembly according to the present invention;
fig. 11 is a schematic diagram showing an operation state of the propeller assembly according to the present invention.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the specific embodiments, an example of a propeller assembly is provided, and referring to fig. 1-11, the propeller assembly comprises a propeller cap 1, a rotating block 2, a propeller blade 3 and a propeller bracket 5 which can be fixedly connected with a motor 4, when the propeller bracket 5 is assembled, the propeller bracket 5 is fixedly connected with the motor 4 after the assembly with the propeller blade 3 is completed, the rotating block 2 is inserted into the propeller blade 3, an elastic piece 6 is arranged between the propeller cap 1 and the rotating block 2, the elastic piece 6 is arranged above the rotating block 2 and is pressed on the rotating block 2, preferably, the elastic piece 6 in the example is a spring, and the propeller cap 1 covers the elastic piece 6 and the rotating block 2 and is fixedly connected with the propeller blade 3 through a screw after the elastic piece 6 and the rotating block 2 are covered.
The screw bracket 5 is inserted in the blade 3 and can move up and down relative to the blade 3, the rotating block 2 can rotate downwards in a screw mode when the blade 3 is stressed, the position of the rotating block 2 relative to the blade 3 can be changed as long as the rotating block 2 rotates in a screw mode after being stressed, and finally locking and fixing are achieved when the rotating block 2 and the screw bracket 5 are rotated to the position of the locking component 7;
the downward spiral movement of the rotating block 2 in the embodiment is realized by matching the structures in the rotating block 2 and the blade 3, and the specific steps are as follows: the rotating block 2 comprises a rotating cap 21 and a hollow block 22 arranged below the rotating cap 21, preferably, the hollow block 22 is a round block, the elastic piece 6 is pressed on the rotating cap 21 to transmit acting force to the hollow block 22, and a plurality of ratchets 23 are arranged at the bottom end of the hollow block 22 along the circumferential direction of the hollow block, preferably, 6 ratchets 23 are arranged in the embodiment. Further, a mounting hole 31 is provided in the blade 3, blade ratchets 32 that can be adapted to the ratchets 23 are circumferentially provided in the mounting hole 31, sliding grooves 33 are formed between two adjacent blade ratchets 32, and preferably, 3 blade ratchets 32 are provided.
Further, the propeller support 5 includes a support body 51 and sliding ribs 52 circumferentially disposed along the support body 51, preferably, 3 sliding ribs 52 are disposed, the sliding ribs 52 are inserted into the sliding grooves 33, and the connection between the propeller support 5 and the blade 3 is achieved through cooperation of the sliding ribs 52 and the sliding grooves 33, so that the propeller support 5 and the blade 3 can slide up and down relatively, but cannot rotate relatively, the top surface of the sliding ribs 52 is formed by a first inclined surface 521 and a second inclined surface 522, and the first inclined surface 521 abuts against the bottom end of the ratchet 23 adjacent to the ratchet 23 matched with the blade ratchet 32.
In the fitting, 6 ratchet teeth 23 of the turning block 2 are fitted, of which 3 ratchet teeth 23 are fitted with 3 blade ratchet teeth 32, and the other 3 ratchet teeth 23 are fitted with first inclined surfaces 521 of the slide bar 52 provided between the adjacent two blade ratchet teeth 32, that is, when the ratchet teeth 23 in this embodiment are provided, one is fitted with the blade ratchet teeth 32, and the other ratchet tooth 23 adjacent thereto is fitted with the first inclined surfaces 521 on the top surface of the slide bar 52, that is, the blade ratchet teeth 32 and the slide bar 52 are alternately abutted against the ratchet teeth 23 of the turning block 2.
Further, the locking assembly 7 includes a locking block 71 disposed on an inner wall of the ratchet 23 and a lock catch 72 disposed on the bracket body 51, where every other ratchet 23 is correspondingly provided with a locking block 71, the locking block 71 is specifically disposed on an inner sidewall of the ratchet 23 corresponding to the locking block 71, and the locking blocks 71 are disposed at intervals to ensure that the rotating block 2 can rotate by a certain angle to enable the locking block 71 to correspond to the lock catch 72, so as to facilitate locking and fixing. The lock catch 72 is arranged above the sliding rib 52 and is arranged corresponding to the position of the sliding rib 52, a first locking surface 711 is arranged on the locking block 71, a second locking surface 721 is arranged on the lock catch 72, and during locking, the lock catch 72 is pressed on the first locking surface 711 through the second locking surface 721 to lock the rotating block 2. Preferably, the first locking surface 711 and the second locking surface 721 are inclined surfaces.
After receiving pressure, the pressure is transmitted to the paddle cap 1, the paddle cap 1 transmits acting force to the elastic piece 6, the elastic piece 6 acts on the rotating block 2, because the rotating block 2 is propped against the paddle 3, the rotating block 2 can transmit acting force to the paddle 3, the paddle 3 moves downwards, at this time, because the screw bracket 5 is fixed and fixed with the motor 4, when receiving acting force of the rotating block 2, the rotating block 2 is reacted to the rotating block 2, the rotating block 2 is jacked up, so that the rotating block 2 moves upwards relatively, at this time, the ratchet 23 matched with the paddle ratchet 32 on the rotating block 2 is separated from the paddle ratchet 32, because the paddle 3 moves downwards, the rotating block 3 moves upwards relatively, when the highest point of the paddle ratchet 32 and the lowest point of the ratchet 23 matched with the sliding rib 52 on the rotating block 2 reach the same height, the ratchet 23 matched with the sliding rib 52 moves downwards along the arc-shaped surface of the paddle ratchet 32, after rotating by a certain angle, the corresponding locking block 71 rotates to the lower part of the lock 72 of the bracket body 51, and the second locking block 721 is pressed onto the first locking block 71, thus locking the rotating block 71 is locked tightly, and the second locking block 721 is locked tightly, and the locking block is locked tightly, and locked by the second locking block 71.
The specific locking and unlocking process of the propeller assembly in this embodiment is as follows:
in the initial state, the state of the motor 4 and the propeller assembly is as shown in fig. 6; the face of one of the ratchet teeth 23 of the rotating block 2 abuts against the first inclined face 521 of the sliding rib 52, and the face of the other ratchet tooth 23 adjacent to the one ratchet tooth 23 abuts against the top face of the blade ratchet tooth 32, and is matched with the top face of the blade ratchet tooth, so that the sliding rib 52 and the blade 3 are tightly pressed.
At this time, the positional relationship between the lock block 71 on the inner side wall of the ratchet 23 of the rotating block 2 and the lock catch 72 on the propeller bracket 5 is shown in fig. 7, and the two are offset from each other; at this time, the state 1 is a detachable state;
from the state 1, continuing to press the paddle cap 1, pushing up the rotating block 2 by the sliding rib 52 of the screw bracket 5, compressing the elastic piece 6, moving the rotating block 2 upwards, and moving the paddle 3 downwards relative to the screw bracket 5 to reach the state 2, as shown in fig. 8; at this time, the lowest point of the ratchet teeth 23 engaged with the sliding rib 52 on the rotating block 2 and the lowest point of the blade ratchet teeth 32 engaged with the ratchet teeth 23 adjacent thereto reach the same height, and the rotating block 2 is rotated and moved downward along the inclined surface of the blade ratchet teeth 32 engaged with the ratchet teeth 23 adjacent thereto due to the elastic member 6;
after the state shown in fig. 8 is reached, the hand is released, the rotating block 2 continues to rotate downwards under the action of the elastic piece 6, and after a certain angle, the second inclined surface 522 of the sliding rib 52 touches the top of the other ratchet 23, as shown in fig. 9, and the state 3 is reached;
due to the action of the elastic piece 6, the rotating block 2 continues to rotate and slide downwards, and the rotating block 2 presses the sliding rib 52 to enable the sliding rib and the blade 3 to move up and down relatively, as shown in fig. 10, the state 4 is shown;
at this time, the positional relationship between the blade ratchet 32 and the slide rib 52 and the ratchet 23 on the rotating block 2 is the same as the state 1, but since the rotating block 2 rotates helically downward in the process from the state 1 to the state 4, the lock block 71 rotates to the lower side of the lock catch 72, as shown in fig. 10, at this time, the screw assembly is already self-locked and cannot be separated from the motor 4, and in order to detach the screw assembly, the blade cap 1, the blade 3, the blade ratchet 32, the ratchet 23 and the slide rib 52 need to be pushed again, the process from the state 1 to the state 4 is repeated, and the positional relationship between the lock block 71 and the lock catch 72 returns to the state 1 which is mutually staggered, and at this time, the screw assembly can be detached from the motor 4 for the detachment.
The screw assembly in the embodiment can be easily self-locked and disassembled after being pressed down, and the operation is simple, convenient and quick.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (8)
1. The utility model provides a screw subassembly, its characterized in that includes oar cap, turning block, paddle and can with motor fixed connection's screw support, the oar cap with paddle fixed connection be provided with the elastic component between the oar cap with the turning block, the turning block cartridge is in the paddle, screw support cartridge in the paddle with can relatively up-and-down motion between the paddle, after the pressurized, the turning block is the downward screw rotation in the paddle the turning piece with be provided with the locking subassembly to the turning block locking between the screw support.
2. The propeller assembly of claim 1, wherein the rotating block comprises a rotating cap and a hollow block disposed below the rotating cap, a plurality of ratchets are disposed at the bottom end of the hollow block along the circumference thereof, every other ratchet is correspondingly provided with a locking block disposed on the inner side wall of the ratchet on the side corresponding thereto.
3. The propeller assembly of claim 2, wherein the blade is provided with a mounting hole therein, blade ratchets adapted to the ratchets are circumferentially provided in the mounting hole, and a sliding groove is formed between two adjacent blade ratchets.
4. A propeller assembly according to claim 3, wherein the turning block is inserted into the mounting hole of the propeller and is pressed against the blade ratchet by the ratchet, and the ratchet performs a screw motion along the top surface of the blade ratchet after being pressed.
5. The propeller assembly of claim 4, wherein the propeller support includes a support body and a sliding rib disposed circumferentially along the support body, the sliding rib being inserted into the sliding groove, a top surface of the sliding rib being formed by a first inclined surface and a second inclined surface, the first inclined surface abutting against a bottom end of a ratchet tooth adjacent to a ratchet tooth of the blade.
6. The propeller assembly of claim 5, wherein the locking assembly comprises a locking block arranged on the inner wall of the ratchet and a lock catch arranged on the bracket body, the lock catch is arranged above the bracket body and corresponds to the sliding rib, a first locking surface is arranged on the locking block, a second locking surface is arranged on the lock catch, and when the lock catch is locked, the lock catch is pressed on the first locking surface through the second locking surface to lock the rotating piece.
7. The propeller assembly of claim 6, wherein the first and second locking surfaces are inclined surfaces.
8. A drone comprising a motor, further comprising the propeller assembly of any one of claims 1-7, the propeller mount being fixedly connected to the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144895.6A CN107878729B (en) | 2017-11-17 | 2017-11-17 | Propeller assembly and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144895.6A CN107878729B (en) | 2017-11-17 | 2017-11-17 | Propeller assembly and unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107878729A CN107878729A (en) | 2018-04-06 |
| CN107878729B true CN107878729B (en) | 2023-12-01 |
Family
ID=61777818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144895.6A Active CN107878729B (en) | 2017-11-17 | 2017-11-17 | Propeller assembly and unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107878729B (en) |
Citations (12)
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| CN1252898A (en) * | 1997-04-15 | 2000-05-10 | 艾利森公司 | Latch mechanism for mobile communication device |
| CN101002031A (en) * | 2004-07-14 | 2007-07-18 | 远程接合技术公司 | Release for fastening assembly |
| CN101061350A (en) * | 2004-09-14 | 2007-10-24 | 株式会社东海 | Connector structure with lock mechanism |
| CN101506568A (en) * | 2006-08-18 | 2009-08-12 | 荷兹比茨有限公司 | Coupling arrangement |
| CN202040465U (en) * | 2011-03-15 | 2011-11-16 | 叶坤霖 | Anti-slip swift joint |
| JP2012219920A (en) * | 2011-04-08 | 2012-11-12 | Toyota Motor Corp | Mounting structure for pipe |
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| CN106081084A (en) * | 2016-07-11 | 2016-11-09 | 南京航空航天大学 | A kind of spherical unmanned plane of portable and collapsible |
| CN206202664U (en) * | 2016-09-21 | 2017-05-31 | 广州亿航智能技术有限公司 | Power component and aircraft |
| CN206554671U (en) * | 2017-02-20 | 2017-10-13 | 福建西河卫浴科技有限公司 | A kind of shower house self-locking hinge and shower house |
| CN207617952U (en) * | 2017-11-17 | 2018-07-17 | 歌尔科技有限公司 | A kind of propeller component and unmanned plane |
-
2017
- 2017-11-17 CN CN201711144895.6A patent/CN107878729B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215370A (en) * | 1963-02-26 | 1965-11-02 | Rotorcraft S A Proprietary Ltd | Rotating wing aircraft |
| CN1252898A (en) * | 1997-04-15 | 2000-05-10 | 艾利森公司 | Latch mechanism for mobile communication device |
| CN101002031A (en) * | 2004-07-14 | 2007-07-18 | 远程接合技术公司 | Release for fastening assembly |
| CN101061350A (en) * | 2004-09-14 | 2007-10-24 | 株式会社东海 | Connector structure with lock mechanism |
| CN101506568A (en) * | 2006-08-18 | 2009-08-12 | 荷兹比茨有限公司 | Coupling arrangement |
| CN202040465U (en) * | 2011-03-15 | 2011-11-16 | 叶坤霖 | Anti-slip swift joint |
| JP2012219920A (en) * | 2011-04-08 | 2012-11-12 | Toyota Motor Corp | Mounting structure for pipe |
| KR101644612B1 (en) * | 2016-03-08 | 2016-08-01 | 주식회사 일렉버드유에이브이 | The remote-controlled unmanned flying device |
| CN106081084A (en) * | 2016-07-11 | 2016-11-09 | 南京航空航天大学 | A kind of spherical unmanned plane of portable and collapsible |
| CN206202664U (en) * | 2016-09-21 | 2017-05-31 | 广州亿航智能技术有限公司 | Power component and aircraft |
| CN206554671U (en) * | 2017-02-20 | 2017-10-13 | 福建西河卫浴科技有限公司 | A kind of shower house self-locking hinge and shower house |
| CN207617952U (en) * | 2017-11-17 | 2018-07-17 | 歌尔科技有限公司 | A kind of propeller component and unmanned plane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107878729A (en) | 2018-04-06 |
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