CN202128909U - Mounting structure for propeller of toy helicopter capable of flying upside down - Google Patents
Mounting structure for propeller of toy helicopter capable of flying upside down Download PDFInfo
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- CN202128909U CN202128909U CN201120184924U CN201120184924U CN202128909U CN 202128909 U CN202128909 U CN 202128909U CN 201120184924 U CN201120184924 U CN 201120184924U CN 201120184924 U CN201120184924 U CN 201120184924U CN 202128909 U CN202128909 U CN 202128909U
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- rotor head
- inserted block
- pilot hole
- propeller blade
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- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000010006 flight Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000429 assembly Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
A mounting structure for a propeller of a toy helicopter capable of flying upside down comprises a propeller rotary shaft, rotor heads and propeller blades. The rotor heads are mounted on the propeller rotary shaft, the propeller blades are mounted on the rotor heads, each rotor head includes a rotor head main part and rotor head accessories, the rotor head main parts are mounted on the propeller rotary shaft in an attached manner, the rotor head accessories are detachably connected with the rotor head main parts, each propeller blade is hinged with one rotor head accessory to form a propeller blade component, the rotor head accessories are provided with assembly inserting blocks, a protruded lug is integrally formed at the tail end of each assembly inserting block, the rotor head main parts are provided with assembly holes matching with the tail ends of the assembly inserting blocks, and lips are formed at edges of orifices of the assembly holes and extend towards centers of the orifices. By the aid of the mounting structure, the toy helicopter can be modified manually so as to realize upright flying and upside-down flying in a switch-over manner.
Description
Technical field
The utility model belongs to the technical field of electronic toy helicopter, is specifically related to a kind of toy helicopter screw mounting structure of the flight of standing upside down.
Background technology
Traditional toy helicopter all can only realize screw last fuselage under upright flight, and can not realize fuselage last screw under handstand flight, offline mode is single, and is recreational not strong with interest.
Afterwards people's development and Design a kind of toy helicopter of the flight of standing upside down, this toy helicopter is in order to realize the flight function of standing upside down, and must the blade form of helicopter be designed to the plane propeller blade of arc-shaped concave and arc convex (but not have).Like this,, driven by motor plane blade upright when fuselage just changes, and just produces to climbing power, realizes upright flight; When fuselage stands upside down, the motor counter-rotating, also can produce to climbing power, thereby the flight of can standing upside down.But because blade form is the plane, the lift of its generation is little, therefore must adopt more powerful power set, and the application of above-mentioned design is very limited.
And existing most of toy helicopters adopt the propeller blade with arc male and fomale(M&F).Obviously; Propeller blade with arc male and fomale(M&F) can not directly adopt aforesaid way to realize the flight of standing upside down; Because arc-shaped concave was that the windward side can produce enough lift when propeller blade was just changeing, if but let its counter-rotating, then arc-shaped concave becomes lee face; And the windward side is an arc convex, obviously can not produce enough lift.
On the other hand; The propeller blade of existing toy helicopter is fixing the assembling with rotor head, generally can not be for convenience detach by consumer, user, even the professional will dismantle; Also must make use of exquisite specific purpose tool; And can not reequip after the dismounting, more can not reequip, thereby can only realize single upright flight function by the free-hand dismounting of common teenager consumer.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned shortcoming and a kind of toy helicopter screw mounting structure of the flight of standing upside down is provided, it can free-hand repacking so that realize upright flight and the conversion of the flight of standing upside down.
Its purpose can realize by following scheme: this toy helicopter screw mounting structure that can stand upside down flight comprises screw rotating shaft, rotor head, propeller blade; Rotor head is installed in the screw rotating shaft; Propeller blade is installed on the rotor head; Its main feature is that said rotor head is divided into rotor head main part and rotor head annex, and the rotor head main part adheres to and is installed in the screw rotating shaft; The rotor head annex rotor head main part that removably connects, every propeller blade and rotor head annex are hinged and form one group of propeller blade assembly; Said rotor head annex is provided with the assembling inserted block, and the end of assembling inserted block is formed with lug; Said rotor head main part is provided with and assembles the pilot hole of inserted block coupling, and pilot hole comprises aperture, main aperture chamber, hole diapire three parts; The shape in pilot hole aperture cooperates with the terminal end shape of assembling inserted block, and the orifice edge of pilot hole is formed with the lip portion of stretching out to the aperture center direction; The internal diameter in pilot hole main aperture chamber is more than or equal to the external diameter of the lug of assembling inserted block; After the end of assembling inserted block was screwed entering pilot hole main aperture chamber, the lug of assembling inserted block was sandwiched between pilot hole lip portion and the hole diapire.
The rotor head main part also is provided with the spacing member that restriction assembling inserted block turns angle.
Be provided with the limited block that restriction assembling inserted block turns angle in the pilot hole main aperture chamber.
The rotor head annex of said every group of propeller blade assembly is provided with two assembling inserted blocks up and down, and two are assembled concave side and the convex side that inserted block lays respectively at propeller blade up and down; The lug of last assembling inserted block is positioned at assembling inserted block upper end, and the lug of following assembling inserted block is positioned at assembling inserted block lower end down.Consider in the two assembling inserted blocks of every group of propeller blade assembly which for last assembling inserted block, which is during for following assembling inserted block, the state with the propeller blade arc-shaped concave when downward is as the criterion.
Said rotor head main part is provided with aperture last pilot hole, aperture following pilot hole down up; The quantity of last pilot hole equals the quantity of propeller blade, and the quantity of following pilot hole also equals the quantity of propeller blade.Consider the rotor head main part pilot hole the aperture towards the time, should be as the criterion with fuselage state just immediately.
Vertical clear distance between pilot hole lip portion and the hole diapire equals to assemble the lug thickness of inserted block.
The utlity model has following advantage and effect:
1, every of the utility model propeller blade and a rotor head annex are hinged, and both connect together and form the propeller blade assembly; Rotor head annex and rotor head main part can free-handly be dismantled; Original propeller blade of upright flight of realizing can be removed thereupon; Then each rotor head main part can be free-hand the assembling transposing go up other propeller blade assembly (being other rotor head annex and other propeller blade); As long as the windward side of the propeller blade after the new assembling be arc-shaped concave and dorsad fuselage (promptly fuselage just immediately the windward side up, the windward side was down when fuselage stood upside down), just can realize handstand flight function.In a word, the utility model can be realized the conversion of two kinds of offline mode through free-hand repacking, and transfer process is simple and efficient.
2, each rotor head annex is provided with up and down two assembling inserted blocks, on assemble inserted block lug be positioned at assembling inserted block upper end, assemble the inserted block lower end under the lug of following assembling inserted block is positioned at.Like this; Every propeller blade just has two kinds of fit to select; To realize upright flight respectively or the flight of standing upside down: first kind of fit is that the pilot hole that adopts upward to assemble inserted block and rotor head main part is pegged graft, and second kind of fit is the rotor head main part pilot hole grafting of adopting to assemble inserted block down.
For having the toy helicopter of double-deck contraprop up and down; Need not to increase the propeller blade that other changes fully; As long as the double-layer propeller of same toy helicopter is changed up and down; And transposing each propeller blade of back (together with the rotor head annex) upset re-assemblies for 180 ° up and down; Originally adopt to go up the rotor head annex of assembling inserted block and use down assembling inserted block (pegging graft) instead, originally adopt down the rotor head annex of assembling inserted block to use assembling inserted block (with the pilot hole grafting of rotor head main part) instead, just can realize upright flight and the handstand conversion between two kinds of patterns of flying with the pilot hole of rotor head main part.
3, said rotor head main part is provided with pilot hole and following pilot hole, on assemble the aperture up, following assembling aperture is down.Like this; Each rotor head main part just has two kinds of fit can select conversion; To realize upright flight respectively or the flight of standing upside down: first kind of fit is to adopt wherein to go up pilot hole and propeller blade modular connector, and second kind of fit is to adopt pilot hole and propeller blade modular connector down.
For having the toy helicopter of double-deck contraprop up and down; Need not to increase the screw that other changes fully; As long as the double-layer propeller of same toy helicopter machine is changed up and down; And transposing each propeller blade of back (together with the rotor head annex) upset is 180 ° up and down, re-assemblies, and originally adopts the rotor head main part of going up pilot hole to use down pilot hole instead; The rotor head main part of pilot hole is used pilot hole instead under originally adopting, and just can realize the conversion between upright flight and two kinds of patterns of handstand flight.
4, say for the toy helicopter that only has the individual layer screw,, also can realize two kinds of offline mode by the structure of the utility model as long as motor can rotating.
Description of drawings
Fig. 1 is the main TV structure sketch map of first kind of specific embodiment of the utility model.
Fig. 2 is a decomposition texture stereogram embodiment illustrated in fig. 1.
Fig. 3 is the local structure for amplifying sketch map of A among Fig. 2.
Fig. 4 is the perspective view of one group of propeller blade assembly wherein among Fig. 1.
Fig. 5 is the main TV structure sketch map of propeller blade assembly shown in Figure 4.
Fig. 6 is the cross-sectional view of rotor head annex among Fig. 1.
Fig. 7 is the pilot hole cross-sectional view of rotor head main part among Fig. 1.
Fig. 8 is an A-A cross-sectional view among Fig. 7.
Fig. 9 is a B-B cross-sectional view among Fig. 7.
Figure 10 is the fit sketch map when adopting toy helicopter embodiment illustrated in fig. 1 to be in upright flight.
Figure 11 adopts toy helicopter embodiment illustrated in fig. 1 to be in the fit sketch map that stands upside down when flying.
Figure 12 is the rotor head main part pilot hole cross-sectional view of second kind of specific embodiment of the utility model.
Figure 13 is the cross-sectional view of the propeller blade assembly of second kind of specific embodiment of the utility model.
Figure 14 is the propeller blade assembly of Figure 13 and first kind of confined state sketch map of rotor head main part of Figure 12.
Figure 15 is the propeller blade assembly of Figure 13 and second kind of confined state sketch map of rotor head main part of Figure 12.
Figure 16 is the propeller blade assembly and the rotor head main part assembling back cross-sectional view of the third specific embodiment of the utility model.
The specific embodiment
Embodiment one
Fig. 1, Fig. 2, shown in Figure 3; This toy helicopter screw mounting structure that can stand upside down flight comprises screw rotating shaft 1, rotor head, four propeller blades 41,42,43,44; Coaxial mutual cover inside and outside its shaft 1 comprises, two axles that direction of rotation is opposite, rotor head is installed in respectively in the rotating shaft of internal and external screw oar up and down, and two propeller blades are installed in rotor head; Two propeller blades are installed in down rotor head in addition, and this is the common trait of the toy helicopter of coaxial pair of oar.The rotor head of present embodiment is divided into rotor head main part 2 and rotor head annex 3 two parts; Wherein rotor head main part 2 fixedly adheres to and is installed in the screw rotating shaft 1, and is shown in Figure 6, and each rotor head annex 3 is provided with two assembling inserted blocks 31 up and down; Two are assembled concave side and the convex side that inserted block lays respectively at propeller blade up and down; What be positioned at the propeller blade concave side is to assemble inserted block down, is positioned at the last assembling inserted block that is of propeller blade convex side, and each end that assembles inserted block is formed with lug 311; The lug 311 of last assembling inserted block is positioned at assembling inserted block upper end, and the lug 311 of following assembling inserted block is positioned at assembling inserted block lower end down.Every propeller blade and a rotor head annex 3 are hinged by jointed shaft 312, and both form one group of propeller blade assembly 5 in hinged back, like Fig. 4, shown in Figure 5.
Fig. 2, Fig. 3, Fig. 7, Fig. 8, shown in Figure 9, rotor head main part 2 are provided with and assemble the pilot hole 21 of inserted block coupling, and each pilot hole 21 comprises aperture 211, main aperture chamber 212, hole diapire 213 3 parts; The shape in pilot hole aperture 211 cooperates with the terminal end shape of assembling inserted block, and the orifice edge of pilot hole is formed with the lip portion 214 of stretching out to the aperture center direction; The internal diameter in pilot hole main aperture chamber 212 equals to assemble the external diameter of the lug 311 of inserted block, also is provided with the limited block 215 that restriction assembling inserted block turns angle in the pilot hole main aperture chamber 212; Vertical clear distance between pilot hole lip portion 214 and the hole diapire 213 equals to assemble lug 311 thickness of inserted block.After the end that assembles inserted block 31 passes 211 entering pilot hole main aperture chambeies 212, pilot hole aperture and turns; The lug 311 of assembling inserted block is sandwiched between pilot hole lip portion 214 and the hole diapire 213; Four rotor head annexes 3 can be assembled by free-hand and corresponding rotor head main part 2.When the free-hand dismounting of needs; Only needing to assemble inserted block 31 oppositely turns; Until the assembling inserted block lug 311 stagger with pilot hole lip portion 214; Can will assemble inserted block 31 shift out, whole propeller leaf assembly 5 separates with rotor head main part 2 thereupon, like the state of the corresponding assembly of Fig. 2 propeller blade 43.
During the upright flight of the foregoing description; Wherein two propeller blades 41,42 are installed on the rotor head (being the rotor head of the distant body 6 of disembarking); Two propeller blades 43,44 are installed in down on the rotor head (promptly comparing the rotor head near fuselage 6) in addition; Every propeller blade and rotor head annex 3 are hinged and form one group of propeller blade assembly 5; The every corresponding following assembling inserted block 31 of propeller blade inserts the pilot hole 21 of a rotor head main part 2, and after the installation, the cancave cambered surface of each propeller blade all down; According to the rotation direction of two rotor heads, the arc-shaped concave that has determined each propeller blade is the windward side, and this state can be realized upright flight as the conventional toy helicopter, like Figure 10, Fig. 1, shown in Figure 2.
In the time will realizing standing upside down offline mode; As long as the double-layer propeller of this toy helicopter machine is changed up and down; Two propeller blades 41,42 are installed in down on the rotor head (promptly comparing the rotor head near fuselage 6); Two propeller blades 43,44 are installed on the rotor head (being the rotor head of the distant body 6 of disembarking) in addition, and change 180 ° of each propeller blade of back (together with the rotor head annex) upsets up and down, and the pilot hole 21 that inserted block 31 inserts a rotor head main part 2 is assembled in every corresponding the going up of propeller blade.After the installation, when fuselage 6 still just immediately, the arc-shaped concave of each propeller blade is all up; And then whole toy helicopter stood upside down come, shown in figure 11, at this moment, the arc-shaped concave of each propeller blade all down, under this kind state, the rotation direction of two rotor heads has determined that the arc-shaped concave of each propeller blade is the windward side, therefore can realize the flight of standing upside down.
Embodiment two
Be applied in the toy helicopter of coaxial pair of oar at this embodiment; Shown in Figure 12, the aperture that each rotor head main part 2 is provided with pilot holes on 21, four of pilot hole 21 and the following pilot holes up; The aperture of four following pilot holes down, last pilot hole and following pilot hole following symmetry in shape.Whole toy helicopter has eight pilot holes, and this toy helicopter is furnished with four groups of propeller blade assemblies 5.Shown in Figure 13; Every group of propeller blade assembly comprises a propeller blade 4 and a rotor head annex; Every propeller blade 4 utilizes stove bolt 312 to be hinged on the rotor head annex; Every propeller blade 4 corresponding rotor head annexes only are provided with an assembling inserted block 31 (being positioned at the part 32 of propeller blade top among Figure 13 owing to do not mate with pilot hole, therefore is not the assembling inserted block).The internal diameter in pilot hole main aperture chamber is greater than the external diameter of the lug of assembling inserted block.All the other aspects are identical with embodiment one.
When realizing upright flight, the assembling inserted block 31 of propeller blade assembly inserts the last pilot hole 21 (shown in figure 14) of rotor head main part, and the cancave cambered surface of each propeller blade all down; According to the rotation direction of two rotor heads, the arc-shaped concave that has determined each propeller blade is the windward side, and this state can be realized upright flight as the conventional toy helicopter; When standing upside down when flight, the propeller blade assembly is exchanged up and down, and each propeller blade assembly all overturns and inserts the following pilot hole 21 (shown in figure 15) of rotor head main part after 180 °.
Embodiment three
Shown in Figure 16; In this embodiment; Each rotor head main part only is provided with a pilot hole, and the every corresponding rotor head annex of propeller blade only is provided with an assembling inserted block 31 (being positioned at the part 32 of propeller blade top among Figure 16 owing to do not mate with pilot hole, therefore is not the assembling inserted block).The toy helicopter of using this embodiment must be equipped with two cover propeller blade assemblies when realizing two kinds of offline mode, and wherein a cover is realized upright flight, the another set of realization flight of standing upside down; During flight wherein a cover be installed on the toy helicopter another set of separation and be in stand-by state with toy helicopter.
Claims (8)
- One kind can stand upside down flight toy helicopter screw mounting structure; Comprise screw rotating shaft, rotor head, propeller blade, rotor head is installed in the screw rotating shaft, and propeller blade is installed on the rotor head; It is characterized in that: said rotor head is divided into rotor head main part and rotor head annex; The rotor head main part adheres to and is installed in the screw rotating shaft, the rotor head annex rotor head main part that removably connects, and every propeller blade and rotor head annex are hinged and form one group of propeller blade assembly; Said rotor head annex is provided with the assembling inserted block, and the end of assembling inserted block is formed with lug; Said rotor head main part is provided with and assembles the pilot hole of inserted block coupling, and pilot hole comprises aperture, main aperture chamber, hole diapire three parts; The shape in pilot hole aperture cooperates with the terminal end shape of assembling inserted block, and the orifice edge of pilot hole is formed with the lip portion of stretching out to the aperture center direction; The internal diameter in pilot hole main aperture chamber is more than or equal to the external diameter of the lug of assembling inserted block; After the end of assembling inserted block was screwed entering pilot hole main aperture chamber, the lug of assembling inserted block was sandwiched between pilot hole lip portion and the hole diapire.
- 2. the toy helicopter screw mounting structure of the flight of standing upside down according to claim 1 is characterized in that: the rotor head main part also is provided with the spacing member that restriction assembling inserted block turns angle.
- 3. the toy helicopter screw mounting structure of the flight of standing upside down according to claim 2 is characterized in that: be provided with the limited block that restriction assembling inserted block turns angle in the pilot hole main aperture chamber.
- 4. according to claim 1, the 2 or 3 described toy helicopter screw mounting structures that can stand upside down and fly; It is characterized in that: the rotor head annex of said every group of propeller blade assembly is provided with two assembling inserted blocks up and down, and two are assembled concave side and the convex side that inserted block lays respectively at propeller blade up and down; The lug of last assembling inserted block is positioned at assembling inserted block upper end, and the lug of following assembling inserted block is positioned at assembling inserted block lower end down.
- 5. according to the toy helicopter screw mounting structure of claim 1, the 2 or 3 described flights of standing upside down, it is characterized in that: said rotor head main part is provided with aperture last pilot hole, aperture following pilot hole down up; The quantity of last pilot hole equals the quantity of propeller blade, and the quantity of following pilot hole also equals the quantity of propeller blade.
- 6. according to the toy helicopter screw mounting structure of claim 1, the 2 or 3 described flights of standing upside down, it is characterized in that: the vertical clear distance between pilot hole lip portion and the hole diapire equals to assemble the lug thickness of inserted block.
- 7. the toy helicopter screw mounting structure of the flight of standing upside down according to claim 4, it is characterized in that: the vertical clear distance between pilot hole lip portion and the hole diapire equals to assemble the lug thickness of inserted block.
- 8. the toy helicopter screw mounting structure of the flight of standing upside down according to claim 5, it is characterized in that: the vertical clear distance between pilot hole lip portion and the hole diapire equals to assemble the lug thickness of inserted block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184924U CN202128909U (en) | 2011-05-28 | 2011-05-28 | Mounting structure for propeller of toy helicopter capable of flying upside down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184924U CN202128909U (en) | 2011-05-28 | 2011-05-28 | Mounting structure for propeller of toy helicopter capable of flying upside down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202128909U true CN202128909U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120184924U Expired - Fee Related CN202128909U (en) | 2011-05-28 | 2011-05-28 | Mounting structure for propeller of toy helicopter capable of flying upside down |
Country Status (1)
| Country | Link |
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| CN (1) | CN202128909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10160538B2 (en) | 2013-05-31 | 2018-12-25 | SZ DJI Technology Co., Ltd. | Self-tightening rotor |
-
2011
- 2011-05-28 CN CN201120184924U patent/CN202128909U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10160538B2 (en) | 2013-05-31 | 2018-12-25 | SZ DJI Technology Co., Ltd. | Self-tightening rotor |
| US10196138B2 (en) | 2013-05-31 | 2019-02-05 | SZ DJI Technology Co., Ltd. | Self-tightening rotor |
| US10745119B2 (en) | 2013-05-31 | 2020-08-18 | SZ DJI Technology Co., Ltd. | Self-tightening rotor |
| US11267565B2 (en) | 2013-05-31 | 2022-03-08 | SZ DJI Technology Co., Ltd. | Self-tightening rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG LIYUN Free format text: FORMER OWNER: SHANTOU BODI TECHNOLOGY CO., LTD. Effective date: 20150507 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150507 Address after: 515800 Guangdong Province, Shantou city Longhu District Zhuchi Street Changping Road 182, Sunshine Coast Garden six district 20 building 1104 room Patentee after: Wang Liyun Address before: Chenghai District of Guangdong city in Shantou province 515800 Cheng Hua Street South of Cheng Hua Lu Shang Dai Bai Ge Pu Patentee before: SHANTOU BODI TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |