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WO2019051993A1 - Hélice pliable - Google Patents

Hélice pliable Download PDF

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Publication number
WO2019051993A1
WO2019051993A1 PCT/CN2017/111357 CN2017111357W WO2019051993A1 WO 2019051993 A1 WO2019051993 A1 WO 2019051993A1 CN 2017111357 W CN2017111357 W CN 2017111357W WO 2019051993 A1 WO2019051993 A1 WO 2019051993A1
Authority
WO
WIPO (PCT)
Prior art keywords
propeller
blade
foldable
lower bracket
assembly
Prior art date
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.)
Ceased
Application number
PCT/CN2017/111357
Other languages
English (en)
Chinese (zh)
Inventor
姜广存
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Techology Co Ltd
Original Assignee
Goertek Techology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goertek Techology Co Ltd filed Critical Goertek Techology Co Ltd
Publication of WO2019051993A1 publication Critical patent/WO2019051993A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/28—Collapsible or foldable blades

Definitions

  • the present invention relates to a propeller, and more particularly to a foldable propeller.
  • a collapsible propeller includes a propeller assembly and a rotary drive assembly, the propeller assembly including a first blade, a propeller upper bracket, a second blade, and a propeller lower bracket, wherein the propeller upper bracket and the propeller lower bracket are connected by two rotating shafts One end of the first blade is hinged to a rotating shaft, one end of the second blade is hinged to another rotating shaft, and the rotary driving assembly is detachably connected to the lower propeller bracket.
  • One ends of the first blade and the second blade are respectively provided with a sleeve matched with the rotating shaft, and an inner wall of the sleeve is provided with a limiting groove on a circumferential direction, and two ends of the lower bracket of the propeller are respectively provided with The corresponding limit groove slides the mating boss.
  • the limiting slot is a semi-circular structure.
  • the two rotating shafts are disposed at two ends of the upper bracket of the propeller and are integrally formed with the upper bracket of the propeller, and two ends of the propeller lower bracket are respectively connected to the two rotating shafts by bolts.
  • the rotary drive assembly includes a snap structure and a motor, wherein an output of the motor is coupled to the lower propeller support by a snap-fit structure.
  • the buckle structure comprises a connecting base, a connecting post and a buckle, wherein one end of the connecting post is connected to the motor through a connecting seat, and the other end is provided with a plurality of buckles for engaging with the lower propeller support in a circumferential direction.
  • the connecting post is sleeved with a spring, and the spring is limited between the connecting seat and the lower propeller holder.
  • the outer surface of the connecting post is provided with a plurality of guiding ribs disposed in the axial direction.
  • a ferrule for connecting with the buckle structure is disposed on the lower bracket of the propeller, and a plurality of through slots and a card slot are alternately arranged on the inner wall of the ferrule, and the connecting post is inserted in the bracket
  • the card sleeve and the plurality of buckles are respectively received in the respective through slots, and the plurality of buckles are respectively inserted into the card slots by rotating the connecting post, thereby realizing the card sleeve and the card structure Pick up.
  • the adjacent through slots and the card slots are located between the two high limit ribs, and the low limit ribs for passing the buckles are disposed between the through slots and the card slots.
  • the first blade and the second blade of the present invention are hinged by a shaft between the upper propeller and the lower propeller, and the blade can be folded, and the detachable connection between the propeller assembly and the rotary drive assembly is not used. It can be quickly disassembled and assembled, which is convenient for consumers to use, and also reduces the storage space and is easy to carry.
  • the rotary drive assembly of the present invention is connected to the buckle structure at the output end of the motor, and the assembly with the propeller assembly is completed by the rotary snap structure, which is simple, safe and reliable.
  • the propeller lower bracket of the present invention is matched with the limiting slots on the first blade and the second blade through two bosses respectively, and the first blade and the second paddle can be controlled by changing the positions of the boss and the limiting slot.
  • the rotation angle of the leaf can realize the foolproof function of the blade and prevent the wrong blade from being loaded.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic structural view of a propeller assembly in the present invention
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is an enlarged view of I in Figure 3;
  • Figure 5 is an exploded view of the propeller assembly of the present invention.
  • Figure 6 is a schematic structural view of a propeller lower bracket according to the present invention.
  • Figure 7 is a schematic view showing the structure of the connecting end of the blade in the present invention.
  • Figure 8 is a schematic view showing the folded state of the propeller assembly of the present invention.
  • Figure 9 is a schematic structural view of a motor assembly of the present invention.
  • Figure 10 is an exploded view of the motor assembly of the present invention.
  • Figure 11 is a schematic structural view of a buckle structure in the present invention.
  • Figure 12 is an assembly diagram of the motor assembly and the propeller lower bracket of the present invention.
  • Figure 13 is a second assembly view of the motor assembly and the lower propeller of the present invention.
  • 1 is the first blade
  • 2 is the propeller upper bracket
  • 21 is the rotating shaft
  • 3 is the second blade
  • 4 is the propeller lower bracket
  • 41 is the ear seat
  • 42 is the ferrule
  • 43 is the through slot
  • 44 is Low limit ribs
  • 45 is the card slot
  • 46 is the high limit rib
  • 47 is the boss
  • 5 is the bolt
  • 6 is the snap structure
  • 61 is the connecting seat
  • 62 is the connecting post
  • 63 is the guiding rib
  • 64 is the card Buckle
  • 7 is spring
  • 8 is screw
  • 9 is motor
  • 11 is sleeve
  • 12 is limit groove
  • 100 propeller assembly
  • 200 is rotary drive assembly.
  • the propeller of the unmanned aerial vehicle needs to be disassembled frequently during use, and the propeller often occupies a large place during storage.
  • the present invention realizes quick disassembly and assembly by the snap-fit structure between the propeller assembly and the rotary drive assembly, and the propeller assembly It can be folded, which is convenient for consumers to use, and also reduces the storage space and is easy to carry.
  • the present invention provides a foldable propeller comprising a propeller assembly 100 and a rotary drive assembly 200, the propeller assembly 100 including a first blade 1, a propeller upper bracket 2, a second blade 3, and a propeller The lower bracket 4, wherein the propeller upper bracket 2 and the propeller lower bracket 4 are connected by two rotating shafts 21, one end of the first blade 1 is hinged with a rotating shaft 21, and one end of the second paddle 3 is hinged with the other rotating shaft 21, first The paddle 1 and the second paddle 3 are rotatable about the rotating shaft 21 for the purpose of folding, and the rotary drive assembly 200 is detachably coupled to the propeller lower bracket 4.
  • one ends of the first blade 1 and the second blade 3 are respectively provided with a sleeve 11 which cooperates with the rotating shaft 21.
  • the inner wall of the sleeve 11 is provided with a limiting slot 12 in the circumferential direction, and the propeller lower bracket 4 Both ends have corresponding limits
  • the bit groove 12 is slidably fitted to the boss 47.
  • the limiting slot 12 has a semi-circular structure.
  • the limiting groove 12 of the semi-circular structure limits the rotation range of the first blade 1 and the second paddle 3 to 0-180°, and the first paddle 1 and the second paddle 3 rotate forward or reverse around the rotation axis 21 After 90°, it can reach the folded state, as shown in Figure 8.
  • the propeller lower bracket 4 has two bosses 47 respectively engaged with the limiting slots 12 on the first blade 1 and the second blade 3, and the first blade can be controlled by changing the positions of the boss 47 and the limiting slot 12. 1 and the rotation angle of the second blade 3, and can achieve the foolproof function of the blade to prevent the wrong blade from being loaded.
  • the two rotating shafts 21 are disposed at both ends of the propeller upper bracket 2 and are integrated with the propeller upper bracket 2.
  • a stepped hole is disposed at both ends of the propeller lower bracket 4, and the rotating shaft 21 is inserted and positioned with the stepped hole, and is axially restricted by the stepped hole, and the propeller lower bracket 4 passes through the bolt 5 and the rotating shaft 21 received in the stepped hole. Fixed connection.
  • the rotary drive assembly 200 includes a snap structure 6, a spring 7 and a motor 9, wherein the output end of the motor 9 is coupled to the propeller lower bracket 4 via a snap structure 6, and the spring 7 is sleeved on the snap structure. 6 is used for resetting the snap structure 6.
  • the buckle structure 6 includes a connecting base 61 , a connecting post 62 and a buckle 64 , wherein one end of the connecting post 62 is provided with a connecting seat 61 , and the connecting seat 61 is connected to the motor 9 via a screw 8 , and the connecting post 62 is The other end is provided with a plurality of snaps 64 for engaging with the lower propeller holder 4 in the circumferential direction.
  • connecting rod 62 is sleeved with a spring 7 which is limited between the connecting seat 61 and the propeller lower bracket 4, and the spring 7 is used for jacking up the propeller lower bracket 4 to position the propeller lower bracket 4 and the buckle 64.
  • the outer surface of the connecting post 62 is provided with a plurality of guiding ribs 63 arranged in the axial direction, and the guiding ribs 63 guide the telescopic movement of the spring 7.
  • the lower bracket 4 is provided with a ferrule 42 for connecting with the buckle structure 6.
  • the inner wall of the ferrule 42 is alternately provided with a plurality of through slots 43 and a slot 45 in the circumferential direction, adjacent to each other.
  • the through slot 43 and the slot 45 are located between the two high limiting ribs 46.
  • a low limit rib 44 is provided between the through slot 43 and the slot 45 for passing the buckle 64.
  • the connecting post 62 is inserted into the ferrule 42 and the plurality of snaps 64 are respectively received in the through slots 43, and the buckle 64 is rotated by rotating the connecting post 62 toward the lower limit rib 44.
  • the lower limit rib 44 enters the card slot 45 to realize the engagement of the ferrule 42 and the buckle structure 6, as shown in FIG.
  • the propeller assembly is now foolproof and prevents the wrong propeller assembly 100 from being installed.
  • the propeller lower bracket 4 has three through slots 43 and three slots 45, and the buckle structure 6 is correspondingly provided with three buckles 64.
  • the quick release between the propeller assembly 100 and the rotary drive assembly 200 is accomplished by the cooperation between the propeller lower bracket 4 and the snap structure 6, and the cooperation between the propeller lower bracket 4 and the snap structure 6 is:
  • the first blade 1, the second blade 3 and the propeller upper bracket 2 are removed, and the propeller lower bracket 4 is inserted into the buckle structure 6 from the top to the bottom, and the through slot 43 on the propeller lower bracket 4 allows The buckle 64 on the buckle structure 6 passes through, and the propeller lower bracket 4 is pressed to the bottom.
  • the two sides of the through slot 43 of the propeller lower bracket 4 have a low limit rib 44 and a high limit rib 46, as shown in FIG. .
  • the lower limit rib 46 on the side of the through groove 43 is restricted, so that the lower propeller holder 4 can only rotate in one direction, and the snap structure 6 can only rotate in the other direction.
  • the previous action is reversed, that is, when the propeller assembly 100 is pressed, and the reverse rotation is performed to bring the buckle 64 of the snap structure 6 to the position of the through groove 43 on the propeller lower bracket 4.
  • the propeller assembly 100 can be removed.
  • the propeller assembly of the invention can be folded and realizes quick disassembly and assembly of the propeller assembly, thereby achieving convenience for the consumer to use, reducing the storage space and facilitating carrying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)

Abstract

L'invention concerne une hélice pliable, comprenant un ensemble hélice (100) et un ensemble d'entraînement rotatif (200). L'ensemble hélice (100) comprend une première pale (1), un support supérieur d'hélice (2), une deuxième pale (3) et un support inférieur d'hélice (4). Le support supérieur d'hélice (2) est relié au support inférieur d'hélice (4) au moyen de deux arbres rotatifs (21). Une extrémité de la première pale (1) et de la deuxième pale (3) est respectivement articulée sur les deux arbres rotatifs (21) et l'ensemble d'entraînement rotatif (200) est relié de façon détachable au support inférieur d'hélice (4). L'hélice peut être pliable et peut être démontée et assemblée rapidement, ce qui facilite son utilisation par un utilisateur, réduit l'espace de stockage et rend celle-ci commode à transporter.
PCT/CN2017/111357 2017-09-12 2017-11-16 Hélice pliable Ceased WO2019051993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710818686.9A CN107571986A (zh) 2017-09-12 2017-09-12 可折叠螺旋桨
CN201710818686.9 2017-09-12

Publications (1)

Publication Number Publication Date
WO2019051993A1 true WO2019051993A1 (fr) 2019-03-21

Family

ID=61033142

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/111357 Ceased WO2019051993A1 (fr) 2017-09-12 2017-11-16 Hélice pliable

Country Status (2)

Country Link
CN (1) CN107571986A (fr)
WO (1) WO2019051993A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110539877A (zh) * 2019-08-21 2019-12-06 成都飞机工业（集团）有限责任公司 一种可旋转伸缩的机翼连接结构
CN111568029A (zh) * 2020-05-14 2020-08-25 上海携福电器有限公司 刷体及牙刷

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108569397B (zh) * 2018-04-03 2020-11-24 河南普禾农业科技有限责任公司 一种智能设备用快捷拆卸螺旋桨式无人机
CN108750075B (zh) * 2018-08-10 2024-04-12 深圳市道通智能航空技术股份有限公司 一种螺旋桨组件、动力组件及无人飞行器
CN114212243B (zh) * 2021-12-03 2022-11-01 南昌三瑞智能科技有限公司 一种可自动折叠和展开的螺旋桨

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CN104071329A (zh) * 2014-03-31 2014-10-01 江苏艾锐泰克无人飞行器科技有限公司 折叠式螺旋桨
CN105059536A (zh) * 2015-08-07 2015-11-18 胡家祺 变螺距旋翼装置以及多旋翼飞行器
CN204979216U (zh) * 2015-09-08 2016-01-20 上海俏动智能化科技有限公司 一种用于无人机折叠桨叶的安装结构
US20160272316A1 (en) * 2015-01-17 2016-09-22 Brian Dale Nelson Multicopter with Detachable Wing
CN206407107U (zh) * 2016-12-28 2017-08-15 昊翔电能运动科技(昆山)有限公司 一种桨座组件的快拆结构
CN207311813U (zh) * 2017-09-12 2018-05-04 歌尔科技有限公司 可折叠螺旋桨

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EP2275343B1 (fr) * 2006-12-19 2012-05-09 Max Prop S.r.l. Propulseur à tangage variable
EP3219607B1 (fr) * 2014-11-10 2021-04-07 SZ DJI Technology Co., Ltd. Dispositif d'entrainement, hélice et système de propulsion
CN205022849U (zh) * 2015-10-08 2016-02-10 安阳市豪克科技发展有限责任公司 一种带有限位结构的折叠桨
CN205661661U (zh) * 2016-06-05 2016-10-26 吴敏 螺旋桨桨叶定位折叠结构
CN207120874U (zh) * 2016-08-31 2018-03-20 深圳市大疆创新科技有限公司 螺旋桨
CN106828917A (zh) * 2017-02-07 2017-06-13 深圳市高巨创新科技开发有限公司 一种螺旋桨组件

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Publication number Priority date Publication date Assignee Title
CN104071329A (zh) * 2014-03-31 2014-10-01 江苏艾锐泰克无人飞行器科技有限公司 折叠式螺旋桨
US20160272316A1 (en) * 2015-01-17 2016-09-22 Brian Dale Nelson Multicopter with Detachable Wing
CN105059536A (zh) * 2015-08-07 2015-11-18 胡家祺 变螺距旋翼装置以及多旋翼飞行器
CN204979216U (zh) * 2015-09-08 2016-01-20 上海俏动智能化科技有限公司 一种用于无人机折叠桨叶的安装结构
CN206407107U (zh) * 2016-12-28 2017-08-15 昊翔电能运动科技(昆山)有限公司 一种桨座组件的快拆结构
CN207311813U (zh) * 2017-09-12 2018-05-04 歌尔科技有限公司 可折叠螺旋桨

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110539877A (zh) * 2019-08-21 2019-12-06 成都飞机工业（集团）有限责任公司 一种可旋转伸缩的机翼连接结构
CN111568029A (zh) * 2020-05-14 2020-08-25 上海携福电器有限公司 刷体及牙刷

Also Published As

Publication number Publication date
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