CN106564581B - Many rotor unmanned aerial vehicle's frame - Google Patents
Many rotor unmanned aerial vehicle's frame Download PDFInfo
- Publication number
- CN106564581B CN106564581B CN201610936337.2A CN201610936337A CN106564581B CN 106564581 B CN106564581 B CN 106564581B CN 201610936337 A CN201610936337 A CN 201610936337A CN 106564581 B CN106564581 B CN 106564581B
- Authority
- CN
- China
- Prior art keywords
- arms
- machine
- polygonal
- pipe clamp
- arc thin
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/061—Frames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
- Details Of Aerials (AREA)
Abstract
The application discloses many rotor unmanned aerial vehicle's frame, it includes: the pipe clamp comprises a central piece, a plurality of clamping pieces and a plurality of clamping pieces, wherein the central piece comprises a polygonal disc and a plurality of pipe clamps which are integrally formed with the polygonal disc, and the polygonal disc comprises a hollow cavity; the device comprises a pipe clamp, a plurality of groups of machine arms and a plurality of groups of machine arms, wherein each group of machine arms comprises at least two first machine arms and a second machine arm connected to one end of the at least two first machine arms; and the motor bases are fixed at two ends of the second horn respectively and used for fixing the motors of the multi-rotor unmanned aerial vehicle. The rack adopts a layout form of combining a central piece and a plurality of groups of machine arms, and has obvious weight reduction effect while meeting the vibration mode of the whole machine by reasonably setting the structural size of the machine arms, is easy to disassemble, assemble and maintain, has high reliability and is suitable for batch production.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to a rack of a multi-rotor unmanned aerial vehicle.
Background
Many rotor unmanned aerial vehicle mainly includes a plurality of motors and screw, flight control device and load storehouse to couple together through the frame. The multi-rotor unmanned aerial vehicle can be widely applied to the fields of aerial fixed-point monitoring, shooting, environmental monitoring, field scientific investigation, case investigation, city management, courtyard security, vehicle theft prevention, express delivery transportation and the like.
At present many rotor unmanned aerial vehicle's frame has several kinds of structural style: firstly, the integral structure of the injection molding part is adopted, so that the unmanned aerial vehicle is suitable for mass production and is small and light in load; secondly, the composite material integrally-formed structure is generally manufactured by hands, the production efficiency is low, the product quality is difficult to reproduce, and the product reliability is difficult to control; thirdly, the plate and rod combined structure has more parts, complex assembly, difficult maintenance and low structural reliability. If can get together the frame of design unmanned aerial vehicle with the advantage of above several kinds of frame structure modes, will improve unmanned aerial vehicle's overall structure's mechanical properties greatly, improve unmanned aerial vehicle's flight quality even.
Disclosure of Invention
In view of the above-mentioned drawbacks or deficiencies of the prior art, the present invention provides a multi-rotor drone airframe that at least improves the reliability of the multi-rotor drone airframe.
According to an aspect of the invention, there is provided a airframe for a multi-rotor drone, the airframe comprising: the pipe clamp comprises a central piece, a plurality of clamping pieces and a plurality of clamping pieces, wherein the central piece comprises a polygonal disc and a plurality of pipe clamps which are integrally formed with the polygonal disc, and the polygonal disc comprises a hollow cavity; the device comprises a pipe clamp, a plurality of groups of machine arms and a plurality of groups of machine arms, wherein each group of machine arms comprises at least two first machine arms and a second machine arm connected to one end of the at least two first machine arms; and the motor bases are fixed at two ends of the second horn respectively and used for fixing the motors of the multi-rotor unmanned aerial vehicle.
Preferably, the pipe clamps are alternately arranged corresponding to a plurality of sides of the polygonal plate, and the pipe clamps are arranged as at least two circular pipes corresponding to the interval of the other ends of the at least two first arms.
Preferably, one end of each of the at least two first arms is connected to the second arm through a T-shaped connector, and the T-shaped connector includes: the first connecting pieces are symmetrically arranged, wherein the first connecting pieces are formed by intersecting a first arc thin wall and a second arc thin wall, the central axes of the first arc thin walls and the second arc thin walls are in the same plane and form a certain angle, one end of each first connecting piece is provided with a reducing opening along the axial direction of the second arc thin wall, the reducing opening can be inserted into the first machine arm, and the second machine arm can be inserted into an inner space formed by the pair of first arc thin walls; and the pair of second connecting pieces are arranged to be arc thin walls, and are symmetrically fixed at the outer sides of the ends, provided with the necking openings, of the pair of first connecting pieces.
Preferably, one end of the first arc thin wall of the first connecting piece extends outwards to form a first flange type engaging lug, two ends of the second connecting piece extend outwards to form a second flange type engaging lug, and the first flange type engaging lug and the second flange type engaging lug are provided with a plurality of through holes respectively.
Preferably, the length of the first mechanical arm is set to be 0.1-0.5 times of the wheelbase. The distance between the at least two first machine arms is set to be 0.1-0.4 times of the wheelbase.
Preferably, the length of the second horn is set to be 0.2-0.8 times of the wheelbase.
Preferably, the polygonal plate comprises two polygonal plate halves which are symmetrically arranged, the pipe clamp is composed of two symmetrically arranged pipe clamp halves, the plurality of pipe clamp halves are arranged to extend outwards along the outer edge of the polygonal plate halves, and the pipe clamp halves are arranged to be at least two semicircular pipes corresponding to the interval of the other ends of the at least two first arms.
Preferably, the plurality of sets of arms and the center piece are made of continuous fiber reinforced plastic.
Preferably, the cross section of the plurality of groups of arms is circular or polygonal.
The frame of the multi-rotor unmanned aerial vehicle adopts a layout form of combining one central piece with a plurality of single and double arms, and has obvious weight reduction effect while meeting the vibration mode of the whole machine by reasonably setting the structural size of the arms, is easy to assemble, disassemble and maintain, has high reliability, and is suitable for batch production.
Drawings
Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments thereof, which proceeds with reference to the accompanying drawings. In which it is shown that:
fig. 1 is a schematic structural view of a airframe of a multi-rotor drone according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a T-shaped connector of the rack shown in fig. 1.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Fig. 1 is a schematic structural view of a airframe of a multi-rotor drone according to an embodiment of the present invention. As shown, the airframe 100 includes a central member 10, a plurality of sets of arms 20, and a plurality of pairs of motor mounts 30.
The center 10 includes a polygonal plate 11 and a plurality of pipe clamps 12 integrally formed with the polygonal plate 11, and the polygonal plate 11 includes a hollow cavity. The polygonal plate 11 may be provided in a regular polygonal structure or a non-regular polygonal structure, and preferably in the former, i.e., a regular polygonal structure. The pipe clamps 12 are alternately arranged corresponding to the sides of the polygonal plate 11. The polygonal plate 11 is a polygon, and the number of the pipe clamps 12 integrally formed therewith is half of the number of the sides of the polygon.
Each set of the horn 20 includes at least two first horns 21 and a second horn 22 connected to one end of the at least two first horns 21, and the first horn 21 and the second horn 22 are each provided in a tubular structure, and the cross section thereof may be circular or polygonal. In this embodiment, a circular cross section is taken as an example, and at least two first arms 21 may be disposed in parallel or at a certain angle with each other. One ends of at least two first arms 21 are respectively connected with a second arm 22 through T-shaped connecting pieces 23. The pipe clamp 12 is provided as two circular pipes corresponding to the interval between the other ends of the at least two first arms 21, and the other ends of the first arms 21 are inserted into the two circular pipes of the pipe clamp 12, respectively. The structure of the T-shaped connector 23 will be described in detail later.
The number of sets of arms 20 corresponds to the number of pipe clamps 12. For example, the polygonal plate 11 is hexagonal, and then there are three pipe clamps 12, and each pipe clamp 12 is connected to one set of arms 20, and three sets of arms 20 can be connected. Each set of booms 20 comprises at least two first booms 21 and a second boom 22 connected to the at least two first booms 21, preferably two first booms 21. For convenience of description, the present embodiment will be described by taking as an example that each set of the horn 20 includes two first horns 21 and a second horn 22 connected to the two first horns 21.
Each pair of motor mounts 30 is fixed at both ends of the second horn 22 respectively for fixing the motor of the multi-rotor drone.
For ease of assembly and disassembly, the polygonal plate 11 may comprise two symmetrically arranged polygonal plate halves, the pipe clamp 12 is composed of two symmetrically arranged pipe clamp halves, the plurality of pipe clamp halves are arranged to extend outwardly along the outer edge of the polygonal plate half, and the pipe clamp halves are alternately arranged corresponding to the plurality of sides of the polygonal plate half, the pipe clamp halves are arranged as two semicircular pipes corresponding to the interval of the other ends of the at least two first arms 21.
Two polygonal disc halves and pipe clamp halves which are symmetrically arranged of the central part 10 are connected into a whole through fasteners, and a fixing part is arranged in a hollow cavity inside the polygonal disc halves and used for fixing a control system hardware device of the multi-rotor unmanned aerial vehicle.
In addition, the cable between the control system hardware device of the multi-rotor unmanned aerial vehicle and the motor passes through the pipe clamp 12 and the inner part of the plurality of groups of arms 20 to be connected, so that the appearance is attractive, and the flight of the unmanned aerial vehicle is not influenced.
For better stability and balance of the housing 100, the polygonal plate halves in this embodiment are regular dodecagons for easier manufacturing, but are not limited to the regular polygonal shapes, and may be regular hexagons, regular octagons, or regular hexadecapes, or may be non-regular polygonal shapes, depending on the specific application.
The structure of the T-shaped connector 23 will be described in detail below with reference to the accompanying drawings.
Fig. 2 is a schematic structural view of a T-shaped connector of the rack shown in fig. 1. As shown, the T-shaped connector 23 includes: a pair of first connecting pieces 1, which are symmetrically arranged, wherein the first connecting pieces 1 are formed by intersecting a first arc thin wall 1a and a second arc thin wall 1b, the central axes of which are in the same plane and form a certain angle, into a whole, one end of each first connecting piece 1 is provided with a reducing opening 1c along the axial direction of the second arc thin wall 1b, the reducing opening 1c can be inserted into the first machine arm 21, and the second machine arm 22 can be inserted into an inner space formed by the pair of first arc thin walls 1 a; and the pair of second connecting pieces 2 are arranged into arc thin walls, and the pair of second connecting pieces 2 are symmetrically fixed on the outer sides of the ends, provided with the necking 1c, of the pair of first connecting pieces 1. The first arc thin wall 1a and the second arc thin wall 1b of the first connecting member 1 may have the same radius or different radii. In addition, the angle between the first and second arc thin walls 1a and 1b of the first connecting member 1 may be set to 10 ° to 170 °, and thus, the T-shaped connecting member 23 may connect the first and second horn 21 and 22 having the same diameter or different diameters having an included angle in the range of 10 ° to 170 °.
As shown in the figure, one end of the first arc thin wall 1a of the first connecting member 1 extends outwards to form a first flange type engaging lug, two ends of the second connecting member 2 respectively extend outwards to form a second flange type engaging lug, and the first flange type engaging lug and the second flange type engaging lug are respectively provided with a plurality of through holes. At least 3 through holes are formed in the first connecting piece 1, wherein at least one through hole is used for being connected with the second machine arm 22, and at least one through hole is formed in the position of the reducing 1 c; the second connecting piece 2 is provided with at least 2 through holes, wherein at least one through hole is used for being connected with the first connecting piece 1, and at least another through hole is used for being connected with a through hole at the reducing 1c of the first connecting piece 1 and the first machine arm 21. Through holes are respectively formed in corresponding positions of the first machine arm 21 and the second machine arm 22, and the first connecting piece 1, the second connecting piece 2 and the two machine arms are connected with each other through fasteners passing through the through holes and the through holes. T type connecting piece 23 can satisfy the intensity and the rigidity requirement that two horn are connected, easily installs and disassembles, satisfies the long-time and many times of flight of aircraft, has improved the reliability of unmanned aerial vehicle horn.
The frame 100 of the multi-rotor unmanned aerial vehicle in the embodiment of the invention adopts a combined structure of the central part 10 and the plurality of groups of arms 20, is easy to disassemble, assemble and maintain, and has high reliability.
The structural dimensions of each set of horn 20 are described in detail below.
The multiple sets of booms 20 bear at least bending moment and torsional moment formed by the lift force of the propeller and the gravity of the motor during the flight of the unmanned aerial vehicle, and the rigidity and strength of the booms have important influence on the flight quality. The two ends of the second arm 22 are connected with a motor base 30, the interface of the motor base 30 is used for fixing the motor, and the propeller is connected with the output shaft of the motor. In the flight process of the unmanned aerial vehicle, two opposite propellers do not interfere with each other. Therefore, the length of the propeller is less than or equal to the axle distance h, which is the diameter of a circle formed by the output shafts of the motors connected by the motor bases 30 around the central axis of the central part 10.
The embodiment is verified through tests, when the cross section of the multiple groups of the arms 20 is circular, the length dimension of the first arms 21 is preferably set to be 0.1-0.5 times of the axle distance h, the distance between at least two first arms 21 is preferably set to be 0.1-0.4 times of the axle distance h, the length dimension of the second arms 22 is set to be 0.2-0.8 times of the axle distance h, the wall thickness dimension of the tube wall of each arm is set to be 0.5-8 mm, the outer diameter dimension is set to be 10-100 mm, and the requirement of the vibration mode of the whole machine can be met.
In addition, the plurality of sets of horn 20 and centerpiece 10 may preferably be formed of a continuous fiber reinforced plastic, such as glass fiber reinforced epoxy, carbon fiber reinforced epoxy, or the like. When the connecting fiber reinforced plastic is adopted, the central part can be manufactured by adopting a die pressing or RTM process, the machine arm is manufactured by adopting processes of pultrusion, winding, pipe twisting and the like, the production efficiency can be improved, and the connecting fiber reinforced plastic has the advantages of high fiber content, excellent mechanical property, easiness in reproduction of product manufacturing, high quality stability and obvious weight reduction effect. The plurality of sets of arms 20 and centerpiece 10 may also be formed of a metallic material, depending upon the particular application.
Compared with the injection molding part, the rack 100 of the multi-rotor unmanned aerial vehicle is more suitable for the large-load unmanned aerial vehicle, the production efficiency of a single set of die is improved to a few minutes from about 1.5 hours compared with the rack integrally molded by composite materials, the product quality repeatability is good, the product reliability is easy to control, and the rack is suitable for batch production.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. A multi-rotor drone's frame, characterized in that the frame includes:
the pipe clamp comprises a central piece, a plurality of clamping pieces and a plurality of clamping pieces, wherein the central piece comprises a polygonal disc and a plurality of pipe clamps which are integrally formed with the polygonal disc, and the polygonal disc comprises a hollow cavity;
the device comprises a pipe clamp, a plurality of groups of machine arms and a plurality of groups of machine arms, wherein each group of machine arms comprises at least two first machine arms and a second machine arm connected to one end of the at least two first machine arms;
one end of at least two first horn respectively through T type connecting piece with the second horn is connected, T type connecting piece includes:
the first connecting pieces are symmetrically arranged, wherein the first connecting pieces are formed by intersecting a first arc thin wall and a second arc thin wall, the central axes of the first arc thin walls and the second arc thin walls are in the same plane and form a certain angle, one end of each first connecting piece is provided with a reducing opening along the axial direction of the second arc thin wall, the reducing opening can be inserted into the first machine arm, and the second machine arm can be inserted into an inner space formed by the pair of first arc thin walls; the pair of second connecting pieces are arranged to be arc thin walls and are symmetrically fixed on the outer sides of the ends, provided with the necking openings, of the pair of first connecting pieces; the first connecting piece is provided with at least 3 through holes, wherein at least one through hole is used for being connected with the second machine arm, and at least one through hole is arranged at the position of the reducing opening; at least 2 through holes are formed in the second connecting piece, wherein at least one through hole is used for being connected with the first connecting piece, and at least one other through hole is used for being connected with a through hole at the position of the reducing position of the first connecting piece and the first machine arm;
and the motor bases are fixed at two ends of the second horn respectively and used for fixing the motors of the multi-rotor unmanned aerial vehicle.
2. The frame according to claim 1, wherein the pipe clamps are alternately arranged corresponding to a plurality of sides of the polygonal plate, and the pipe clamps are arranged as at least two circular pipes corresponding to the interval of the other ends of the at least two first arms.
3. The rack according to claim 1, wherein one end of the first arc thin wall of the first connecting member extends outwards to form a first flange-type engaging lug, two ends of the second connecting member extend outwards to form a second flange-type engaging lug, and the first flange-type engaging lug and the second flange-type engaging lug are respectively provided with a plurality of through holes.
4. The frame according to claim 1, wherein the length dimension of the first horn is set to be 0.1 to 0.5 times the wheelbase.
5. The frame according to claim 1, wherein the at least two first arms are spaced apart by 0.1 to 0.4 times the wheelbase.
6. The frame according to claim 1, wherein the length dimension of the second horn is set to 0.2 to 0.8 times the wheelbase.
7. The frame according to any one of claims 1 to 6, wherein the polygonal plate comprises two symmetrically arranged polygonal plate halves, the pipe clamp is composed of two symmetrically arranged pipe clamp halves, the plurality of pipe clamp halves are arranged to extend outwards along the outer edge of the polygonal plate halves, and the pipe clamp halves are arranged as at least two semicircular pipes corresponding to the distance between the other ends of the at least two first arms.
8. The airframe as recited in claim 7, wherein said plurality of sets of arms and said center piece are formed from a continuous fiber reinforced plastic.
9. The frame of claim 7, wherein the plurality of sets of arms are circular or polygonal in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936337.2A CN106564581B (en) | 2016-11-01 | 2016-11-01 | Many rotor unmanned aerial vehicle's frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936337.2A CN106564581B (en) | 2016-11-01 | 2016-11-01 | Many rotor unmanned aerial vehicle's frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106564581A CN106564581A (en) | 2017-04-19 |
| CN106564581B true CN106564581B (en) | 2020-03-27 |
Family
ID=58534567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610936337.2A Active CN106564581B (en) | 2016-11-01 | 2016-11-01 | Many rotor unmanned aerial vehicle's frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106564581B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613680A (en) * | 2017-10-11 | 2018-01-19 | 四川金瑞穗科技有限公司 | A kind of control box and unmanned plane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203604374U (en) * | 2013-09-25 | 2014-05-21 | 朱希龙 | Three-way connecting pipe and trampoline frame |
| CN205136258U (en) * | 2015-11-16 | 2016-04-06 | 绍兴启迪健身器材有限公司 | Split T jacket |
| CN205499318U (en) * | 2016-02-04 | 2016-08-24 | 顺丰科技有限公司 | Many rotor unmanned aerial vehicle frame centre piece |
| CN205549568U (en) * | 2016-03-18 | 2016-09-07 | 广州天翔航空科技有限公司 | Unmanned aerial vehicle's rack construction |
| CN206288233U (en) * | 2016-11-01 | 2017-06-30 | 顺丰科技有限公司 | A kind of frame of multi-rotor unmanned aerial vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8052081B2 (en) * | 2008-08-22 | 2011-11-08 | Draganfly Innovations Inc. | Dual rotor helicopter with tilted rotational axes |
| CN201851442U (en) * | 2010-03-18 | 2011-06-01 | 李进 | Quick connector |
-
2016
- 2016-11-01 CN CN201610936337.2A patent/CN106564581B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203604374U (en) * | 2013-09-25 | 2014-05-21 | 朱希龙 | Three-way connecting pipe and trampoline frame |
| CN205136258U (en) * | 2015-11-16 | 2016-04-06 | 绍兴启迪健身器材有限公司 | Split T jacket |
| CN205499318U (en) * | 2016-02-04 | 2016-08-24 | 顺丰科技有限公司 | Many rotor unmanned aerial vehicle frame centre piece |
| CN205549568U (en) * | 2016-03-18 | 2016-09-07 | 广州天翔航空科技有限公司 | Unmanned aerial vehicle's rack construction |
| CN206288233U (en) * | 2016-11-01 | 2017-06-30 | 顺丰科技有限公司 | A kind of frame of multi-rotor unmanned aerial vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106564581A (en) | 2017-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106542087B (en) | Multi-rotor unmanned aerial vehicle's frame | |
| US5059057A (en) | High strength, thin-walled, plastic tubes and connector combination and method of fabrication | |
| CN106542077A (en) | A kind of frame of multi-rotor unmanned aerial vehicle | |
| CN2858238Y (en) | Assemble glass fibre reinforced plastic storage tank die | |
| CN205499318U (en) | Many rotor unmanned aerial vehicle frame centre piece | |
| CN106564581B (en) | Many rotor unmanned aerial vehicle's frame | |
| US11440363B2 (en) | Three-point suspension link and production method for a three-point suspension link | |
| EP3608091A1 (en) | Composite connector and method of manufacturing the same | |
| US11485184B2 (en) | Three-point suspension link and production method for a three-point suspension link | |
| CN104890865A (en) | Engine arm component, airframe and unmanned aerial vehicle | |
| CN106122201B (en) | A kind of connection structure of multi-rotor unmanned aerial vehicle horn | |
| CN208085992U (en) | Novel multi-rotor unmanned aerial vehicle airframe structure and unmanned plane | |
| CN206288233U (en) | A kind of frame of multi-rotor unmanned aerial vehicle | |
| CN113752596A (en) | Positioning structure of composite material winding core mold flange and mounting and dismounting method thereof | |
| CN206288231U (en) | A kind of frame of multi-rotor unmanned aerial vehicle | |
| CN105234957A (en) | Robot and robot joint structure thereof | |
| CN102646483B (en) | Mould for manufacturing special cable | |
| US20240035439A1 (en) | Blade Apparatus for Wind Power Generation and Wind Power Generation Device | |
| CN205129890U (en) | Robot and robot joint structure thereof | |
| CN210768080U (en) | Connecting hardware fitting and composite cross arm | |
| CN107031813A (en) | Multi-rotor unmanned aerial vehicle frame central part | |
| CN204688414U (en) | Horn assembly, frame and unmanned plane | |
| CN202917935U (en) | Protective housing used for cable intermediate head | |
| CN205076042U (en) | Many rotor unmanned aerial vehicle box structure horn | |
| EP3459759B1 (en) | Carbon fibre spoke and manufacturing method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 518063 5th floor, block B, building 1, software industry base, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Fengyi Technology (Shenzhen) Co.,Ltd. Address before: 518061 Intersection of Xuefu Road (south) and Baishi Road (east) in Nanshan District, Shenzhen City, Guangdong Province, 6-13 floors, Block B, Shenzhen Software Industry Base Patentee before: SF TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |