CN210027881U - Foldable propeller - Google Patents
Foldable propeller Download PDFInfo
- Publication number
- CN210027881U CN210027881U CN201920743724.3U CN201920743724U CN210027881U CN 210027881 U CN210027881 U CN 210027881U CN 201920743724 U CN201920743724 U CN 201920743724U CN 210027881 U CN210027881 U CN 210027881U
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- CN
- China
- Prior art keywords
- hub plate
- propeller hub
- connecting hole
- propeller
- blade
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Abstract
The utility model discloses a collapsible screw, include: a hub, blades and a connector, wherein: the propeller hub comprises an upper propeller hub plate and a lower propeller hub plate detachably connected with the upper propeller hub plate, wherein the upper propeller hub plate is provided with an upper connecting hole penetrating through the front side and the back side of the upper propeller hub plate, the lower propeller hub plate is provided with a lower connecting hole penetrating through the front side and the back side of the lower propeller hub plate and coaxial with the upper connecting hole, and a positioning collision bead is arranged on the surface of one side of the lower propeller hub plate and positioned at the periphery of the lower connecting hole; the root of the blade is provided with a mounting hole and a positioning hole positioned on the periphery of the mounting hole, the blade root of the blade is positioned between the upper hub plate and the lower hub plate, the mounting hole is respectively coaxial with the upper connecting hole and the lower connecting hole, and the positioning hole forms a coating for the positioning collision bead; one end of the connecting piece sequentially penetrates through the upper connecting hole, the mounting hole and the lower connecting hole so that the blades are respectively connected with the upper propeller hub plate and the lower propeller hub plate. The utility model discloses can effectively realize accurate location, prevent that the paddle from deviating its standard position because of aerodynamic's influence in the motion process.
Description
Technical Field
The utility model relates to an aeronautical equipment technical field especially relates to a collapsible screw.
Background
At present, the general folding propeller has the defects of inaccurate blade positioning, large vibration, large noise and low efficiency, and is particularly critical when the noise decibel is required to be not higher than a certain specific value in the flight process and stable flight is carried out in long-term flight; even because the vibration is serious, the key parts of the airplane are damaged and crashed.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem who exists among the above-mentioned background art, the utility model provides a collapsible screw.
The utility model provides a pair of collapsible screw, include: a hub, blades and a connector, wherein:
the propeller hub comprises an upper propeller hub plate and a lower propeller hub plate which is positioned below the upper propeller hub plate and is detachably connected with the upper propeller hub plate, wherein an upper connecting hole penetrating through the front side and the back side of the upper propeller hub plate is arranged on the upper propeller hub plate, a lower connecting hole penetrating through the front side and the back side of the lower propeller hub plate and coaxial with the upper connecting hole is arranged on the lower propeller hub plate, and a positioning collision bead is arranged on the surface of one side of the lower propeller hub plate and positioned at the periphery of the lower connecting hole;
the root of the blade is provided with a mounting hole and a positioning hole positioned on the periphery of the mounting hole, the blade root of the blade is positioned between the upper hub plate and the lower hub plate, the mounting hole is respectively coaxial with the upper connecting hole and the lower connecting hole, and the positioning hole forms a coating for the positioning collision bead; one end of the connecting piece sequentially penetrates through the upper connecting hole, the mounting hole and the lower connecting hole so that the blades are respectively connected with the upper propeller hub plate and the lower propeller hub plate.
Preferably, the upper hub plate is provided with lightening holes penetrating through the front surface and the back surface of the upper hub plate.
Preferably, the lower hub plate is provided with lightening holes penetrating through the front and back surfaces of the lower hub plate.
Preferably, the positioning collision bead is provided with one or more.
Preferably, there are three positioning collision beads, and the three positioning collision beads are arranged in an isosceles triangle.
The utility model discloses in, through setting the propeller hub to the structure of going up propeller hub board and lower propeller hub board to set up the location on lower propeller hub board and touch the pearl, set up the locating hole on the paddle, and make the location touch the pearl and be located the locating hole, the setting of this structure can effectively realize accurate location, prevent that the paddle from deviating its standard position because aerodynamic's influence in the motion process, and utilize the location to touch spacing and the locking of pearl and make its transportation in safe and reliable more.
Drawings
Fig. 1 is a schematic structural view of a foldable propeller according to the present invention;
fig. 2 is a schematic structural view of the hub of a foldable propeller according to the present invention;
fig. 3 is a three-dimensional effect diagram of the hub of the foldable propeller according to the present invention.
Detailed Description
The technical solution of the present invention will be described in detail by the following embodiments.
As shown in fig. 1-3, fig. 1 is a schematic structural view of a foldable propeller according to the present invention; fig. 2 is a schematic structural view of the hub of a foldable propeller according to the present invention; fig. 3 is a three-dimensional effect diagram of the hub of the foldable propeller according to the present invention.
Referring to fig. 1-3, the present invention provides a foldable propeller, comprising: hub 1, blades 2 and attachment, wherein:
the propeller hub 1 comprises an upper propeller hub plate 11 and a lower propeller hub plate 12 which is positioned below the upper propeller hub plate 11 and is detachably connected with the upper propeller hub plate 11, wherein an upper connecting hole penetrating through the front side and the back side of the upper propeller hub plate 11 is formed in the upper propeller hub plate 12, a lower connecting hole penetrating through the front side and the back side of the lower propeller hub plate and coaxial with the upper connecting hole is formed in the lower propeller hub plate 12, and a positioning collision bead 3 is arranged on the surface of one side of the lower propeller hub plate 12 and positioned at the periphery of the lower connecting hole. The root of the blade 2 is provided with a mounting hole and a positioning hole positioned on the periphery of the mounting hole, the blade root of the blade 2 is positioned between an upper blade hub plate 11 and a lower blade hub plate 12, the mounting hole is respectively coaxial with the upper connecting hole and the lower connecting hole, and the positioning hole forms a coating for the positioning collision bead 3; one end of the connector passes through the upper connecting hole, the mounting hole and the lower connecting hole in sequence so that the blades 2 are connected with the upper hub plate 11 and the lower hub plate 12 respectively.
By the way, the utility model discloses a set hub 1 to the structure of going up propeller hub plate 11 and lower propeller hub plate 12 to set up the location on lower propeller hub plate 12 and bump pearl 3, set up the locating hole on paddle 2, and make the location bump pearl 3 be located the locating hole, the setting of this structure can effectively realize accurate location, prevent paddle 2 because its standard position of aerodynamic's influence and skew in the motion process, and utilize the location to bump spacing and the locking of pearl and make its transportation in safe and reliable more.
In addition, in the present embodiment, the upper hub plate 11 and the lower hub plate 12 are provided with lightening holes penetrating through the front and back surfaces thereof, so as to lighten the weight of the hub 1.
In this embodiment, three positioning collision beads 3 are provided, and the three positioning collision beads 3 are arranged in an isosceles triangle to improve the positioning stability.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A foldable propeller, comprising: hub (1), blades (2) and a connection, wherein:
the propeller hub (1) comprises an upper propeller hub plate (11) and a lower propeller hub plate (12) which is positioned below the upper propeller hub plate (11) and is detachably connected with the upper propeller hub plate (11), wherein an upper connecting hole penetrating through the front and back of the upper propeller hub plate (11) is formed in the upper propeller hub plate (11), a lower connecting hole penetrating through the front and back of the lower propeller hub plate (12) and coaxial with the upper connecting hole is formed in the lower propeller hub plate, and a positioning collision bead (3) is arranged on the surface of one side of the lower propeller hub plate (12) and positioned at the periphery of the lower connecting hole;
the root of the blade (2) is provided with a mounting hole and a positioning hole positioned on the periphery of the mounting hole, the blade root of the blade (2) is positioned between an upper blade hub plate (11) and a lower blade hub plate (12), the mounting hole is coaxial with the upper connecting hole and the lower connecting hole respectively, and the positioning hole forms a coating for the positioning collision bead (3); one end of the connecting piece sequentially penetrates through the upper connecting hole, the mounting hole and the lower connecting hole so that the blades (2) are respectively connected with the upper blade hub plate (11) and the lower blade hub plate (12).
2. The foldable propeller as recited in claim 1, characterised in that the upper blade hub plate (11) is provided with lightening holes through its front and rear faces.
3. The foldable propeller of claim 1, wherein the lower hub plate (12) is provided with lightening holes through its front and back sides.
4. The foldable propeller according to any of the claims 1-3, characterized in that the positioning balls (3) are provided with one or more.
5. The foldable propeller according to claim 4, wherein there are three positioning balls (3), and the three positioning balls (3) are arranged in an isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743724.3U CN210027881U (en) | 2019-05-22 | 2019-05-22 | Foldable propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743724.3U CN210027881U (en) | 2019-05-22 | 2019-05-22 | Foldable propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210027881U true CN210027881U (en) | 2020-02-07 |
Family
ID=69367250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920743724.3U Active CN210027881U (en) | 2019-05-22 | 2019-05-22 | Foldable propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210027881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127034A (en) * | 2019-05-22 | 2019-08-16 | 安徽卓尔航空科技有限公司 | A kind of foldable propeller |
-
2019
- 2019-05-22 CN CN201920743724.3U patent/CN210027881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127034A (en) * | 2019-05-22 | 2019-08-16 | 安徽卓尔航空科技有限公司 | A kind of foldable propeller |
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