CN210698765U - Propeller assembly for doll - Google Patents
Propeller assembly for doll Download PDFInfo
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- CN210698765U CN210698765U CN201921503492.0U CN201921503492U CN210698765U CN 210698765 U CN210698765 U CN 210698765U CN 201921503492 U CN201921503492 U CN 201921503492U CN 210698765 U CN210698765 U CN 210698765U
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- shaft
- metal ring
- propeller blade
- doll
- propeller
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Abstract
The utility model relates to a screw subassembly for doll, including the fixed axle, propeller blade, the fixed axle top is equipped with spacing terminal, and the lower extreme of spacing terminal is equipped with the connecting axle, and propeller blade's middle part is equipped with the through-hole, and propeller blade is located between spacing terminal and the fixed axle, and spacing terminal and fixed axle form respectively spacing to propeller blade axial both sides, and it is fixed with the fixed axle that the connecting axle inserts in the through-hole, is equipped with first becket in the through-hole, and the rotatable cover of first becket is established on the connecting axle, and first becket rotates with propeller blade is synchronous. Adopt above-mentioned technical scheme, the utility model provides a screw subassembly for doll, its whole simple to operate, rotational speed are fast, stability is good, longe-lived.
Description
Technical Field
The utility model relates to a screw subassembly for doll.
Background
The existing propeller assembly for the doll comprises a fixed shaft and propeller blades, wherein an annular groove is formed in the upper end of the fixed shaft, the propeller blades are sleeved in the annular groove and limited by the bottom end of the annular groove, a limiting part used for limiting axial sliding of the propeller blades is arranged at the upper end of the annular groove, the limiting part is integrally formed in an inserting part at the upper end of the fixed shaft, the inserting part comprises conical parts which are symmetrically arranged at two ends of the fixed shaft, the bottom end of each conical part is provided with the annular groove, a gap is formed between the two conical parts, the propeller blades are in contact with the outer surfaces of the two conical parts, so that the two conical parts move in opposite directions, and when the propeller blades enter the annular groove, the bottom end of each conical part. At present, the whole structure of the propeller component is unstable, the propeller blade and the fixed shaft are both made of plastics, the processing precision is low, the abrasion between the propeller blade and the inner wall of the annular groove is large, the rotating speed is low, and the propeller component is easy to clamp.
Disclosure of Invention
The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a screw subassembly for doll, its whole simple to operate, rotational speed are fast, stability is good, longe-lived.
The technical scheme of the utility model: the utility model provides a screw subassembly for doll, includes fixed axle, propeller blade, its characterized in that: the upper portion of the fixed shaft is provided with a limiting terminal, the lower end of the limiting terminal is provided with a connecting shaft, the middle portion of the propeller blade is provided with a through hole, the propeller blade is located between the limiting terminal and the fixed shaft, the limiting terminal and the fixed shaft respectively form limiting for two axial sides of the propeller blade, the connecting shaft is inserted into the through hole and fixed with the fixed shaft, a first metal ring is arranged in the through hole, the first metal ring is rotatably sleeved on the connecting shaft, and the first metal ring and the propeller blade synchronously rotate.
By adopting the technical scheme, the first metal ring is high in machining precision and is not easy to displace, deviate and clamp with the connecting shaft during operation, and the limiting terminal is used for preventing the propeller blades from flying upwards and can play a role in axial limiting; the whole installation is convenient, the rotating speed is high, the stability is good, and the service life is long.
The utility model discloses a further setting: the first metal ring is internally provided with a second metal ring which can rotate circumferentially relative to the first metal ring, and the second metal ring is sleeved on the connecting shaft and can rotate relative to the connecting shaft.
By adopting the further arrangement, the first metal ring and the second metal ring are not easily influenced by the shrinkage rate, so that the first metal ring and the second metal ring rotate smoothly and stably, and the propeller blade can rotate quickly and stably; moreover, even if the second metal ring is clamped with the connecting shaft, the propeller blade can still smoothly rotate.
The utility model discloses a further setting again: the fixed shaft comprises a main shaft and a supporting shaft arranged at the upper end of the main shaft, the outer diameter of the supporting shaft is smaller than that of the main shaft, the supporting shaft is fixed with the connecting shaft, the upper end of the supporting shaft is abutted against the lower ends of the first metal ring and the second metal ring, and a gap is formed between the propeller blade and the upper end face of the main shaft.
By adopting the further arrangement, the support shaft can be abutted against the lower ends of the first metal ring and the second metal ring to limit the propeller blade downwards, and the contact surface between the support shaft and the propeller blade is small, so that the wear is small; the clearance that forms between propeller blade and the main shaft up end makes propeller blade rotational speed faster like this, can not block.
The utility model discloses a still further set up: a gap is arranged between the lower end face of the limiting terminal and the propeller blade.
By adopting the above further arrangement, the rotating speed of the propeller blade is faster and the propeller blade cannot be clamped.
The utility model discloses a still further set up: an annular groove is arranged in the through hole, and the first metal ring is pressed in the annular groove.
With the above further arrangement, the annular groove can limit the axial position of the first metal ring, and the stability is better.
The utility model discloses a still further set up: the connecting shaft is inserted in the supporting shaft and is in interference fit with the supporting shaft.
By adopting the above further arrangement, the connecting shaft and the supporting shaft are convenient to install and firm in positioning.
The utility model discloses a still further set up: the side wall of the connecting shaft is provided with a plurality of tensioning convex ribs which are in interference fit with the supporting shaft.
By adopting the above further arrangement, the connecting shaft and the supporting shaft are more firmly installed and are not easy to separate, so that the propeller blade is ensured not to fly out.
The utility model discloses a still further set up: the main shaft and the support shaft are integrally arranged and are all metal parts; the connecting shaft and the limiting terminal are also integrally arranged and are all metal pieces; the propeller blade is a plastic piece.
By adopting the above further arrangement, the whole processing is convenient, the cost is low, the influence of the shrinkage rate is not easy to occur, the processing precision is high, and the stability is good.
Drawings
FIG. 1 is an overall block diagram of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is an overall structure diagram of the limiting terminal and the connecting shaft according to the embodiment of the present invention;
FIG. 5 is a view of the structure of the fixing shaft according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of a propeller blade according to an embodiment of the present invention;
fig. 7 is a diagram illustrating a structure of a first metal ring according to an embodiment of the present invention;
fig. 8 is a structural view of a second metal ring according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-8, a propeller assembly for a doll, comprises a fixed shaft 1 and a propeller blade 2, wherein a limit terminal 3 is arranged above the fixed shaft 1, a connecting shaft 4 is arranged at the lower end of the limit terminal 3, a through hole 21 is formed in the middle of the propeller blade 2, the propeller blade 2 is arranged between the limit terminal 3 and the fixed shaft 1, the limit terminal 3 and the fixed shaft 1 respectively limit two axial sides of the propeller blade 2, the connecting shaft 4 is inserted into the through hole 21 and fixed with the fixed shaft 1, a first metal ring 5 is arranged in the through hole 21, the first metal ring 5 is rotatably sleeved on the connecting shaft 4, and the first metal ring 5 and the propeller blade 2 synchronously rotate.
In order to further ensure the rotational stability of the propeller blade 2, the first metal ring 5 is internally provided with a second metal ring 6, the second metal ring 6 can rotate circumferentially relative to the first metal ring 5, and the second metal ring 6 is sleeved on the connecting shaft 4 and can rotate relative to the connecting shaft 4.
In the embodiment of the present invention, the fixed shaft 1 includes a main shaft 11 and a supporting shaft 12 disposed at the upper end of the main shaft 11, the outer diameter of the supporting shaft 12 is smaller than the outer diameter of the main shaft 11, the supporting shaft 12 is fixed to the connecting shaft 4, the upper end of the supporting shaft 12 is abutted to the lower ends of the first metal ring 5 and the second metal ring 6, a gap is formed between the propeller blade 2 and the upper end surface of the main shaft 11, and a gap is formed between the lower end surface of the limiting terminal 3 and the propeller blade 2; the support shaft 12 can not only be abutted against the lower end of the second metal ring 6 to limit the downward position of the propeller blade 2, but also can ensure that the contact surface between the support shaft and the propeller blade 2 is small and the abrasion is small; the clearance that forms between propeller blade 2 and the main shaft 11 up end and the clearance between terminal surface and propeller blade 2 under the spacing terminal 3 can make 2 rotational speeds of propeller blade faster, can not block.
The utility model discloses in the embodiment, be equipped with ring channel 22 in the through-hole 21, first becket 5 presses and establishes in ring channel 22, and ring channel 22 can extend to the lower surface or the upper surface at 2 middle parts of propeller blade, and the ring channel can restrict the axial position of first becket 5, and stability is better.
The utility model discloses in the embodiment, connecting axle 4 is inserted and is established in back shaft 12 and interference fit, is equipped with a plurality of tensioning protruding muscle 41 on the lateral wall of connecting axle 4, tensioning protruding muscle 41 and back shaft 12 interference fit.
The main shaft 11 and the support shaft 12 are integrally arranged and are all metal pieces; the connecting shaft 4 and the limiting terminal 3 are also integrally arranged and are all metal pieces; the propeller blade 2 is a plastic part, so that the whole machining is convenient, the cost is low, the influence of the shrinkage rate is not easy to occur, the machining precision is high, and the stability is good.
Claims (8)
1. The utility model provides a screw subassembly for doll, includes fixed axle, propeller blade, its characterized in that: the upper portion of the fixed shaft is provided with a limiting terminal, the lower end of the limiting terminal is provided with a connecting shaft, the middle portion of the propeller blade is provided with a through hole, the propeller blade is located between the limiting terminal and the fixed shaft, the limiting terminal and the fixed shaft respectively form limiting for two axial sides of the propeller blade, the connecting shaft is inserted into the through hole and fixed with the fixed shaft, a first metal ring is arranged in the through hole, the first metal ring is rotatably sleeved on the connecting shaft, and the first metal ring and the propeller blade synchronously rotate.
2. The propeller assembly for a doll of claim 1, wherein: the first metal ring is internally provided with a second metal ring which can rotate circumferentially relative to the first metal ring, and the second metal ring is sleeved on the connecting shaft and can rotate relative to the connecting shaft.
3. The propeller assembly for a doll of claim 2, wherein: the fixed shaft comprises a main shaft and a supporting shaft arranged at the upper end of the main shaft, the outer diameter of the supporting shaft is smaller than that of the main shaft, the supporting shaft is fixed with the connecting shaft, the upper end of the supporting shaft is abutted against the lower ends of the first metal ring and the second metal ring, and a gap is formed between the propeller blade and the upper end face of the main shaft.
4. The propeller assembly for a doll of claim 3, wherein: a gap is arranged between the lower end face of the limiting terminal and the propeller blade.
5. A propeller assembly for a doll according to claim 1 or 2 or 3 or 4, wherein: an annular groove is arranged in the through hole, and the first metal ring is pressed in the annular groove.
6. A propeller assembly for a doll according to claim 1 or 2 or 3 or 4, wherein: the connecting shaft is inserted in the supporting shaft and is in interference fit with the supporting shaft.
7. The propeller assembly for a doll of claim 6, wherein: the side wall of the connecting shaft is provided with a plurality of tensioning convex ribs which are in interference fit with the supporting shaft.
8. The propeller assembly for a doll of claim 7, wherein: the main shaft and the support shaft are integrally arranged and are all metal parts; the connecting shaft and the limiting terminal are also integrally arranged and are all metal pieces; the propeller blade is a plastic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503492.0U CN210698765U (en) | 2019-09-10 | 2019-09-10 | Propeller assembly for doll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503492.0U CN210698765U (en) | 2019-09-10 | 2019-09-10 | Propeller assembly for doll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210698765U true CN210698765U (en) | 2020-06-09 |
Family
ID=70941283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921503492.0U Active CN210698765U (en) | 2019-09-10 | 2019-09-10 | Propeller assembly for doll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210698765U (en) |
-
2019
- 2019-09-10 CN CN201921503492.0U patent/CN210698765U/en active Active
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