Integrated propeller structure

Abstract

The utility model relates to the technical field of propeller structures, and discloses an integrated propeller structure, which comprises an upper-layer blade and a lower-layer blade rotating in different directions with the upper-layer blade, the upper-layer blade is positioned above the lower-layer blade, and the upper-layer blade and the lower-layer blade are respectively integrally formed; upper-layer blades are arranged on the two sides of the upper-layer paddle respectively, lower-layer blades are arranged on the two sides of the lower-layer paddle respectively, two upper-layer balance rods are arranged on the upper-layer paddle, and the two upper-layer balance rods and the upper-layer paddle are integrally formed; according to the integrated propeller structure, the upper-layer propeller blade and the two upper-layer balance rods are integrally formed, the lower-layer propeller blade and the upper-layer balance rods are integrally formed, the upper-layer propeller blade and the lower-layer propeller blade respectively form an independent whole, and when the integrated propeller structure is applied to a flying toy, assembling is convenient, the structure is simple, assembling efficiency is high, and cost is greatly saved.

Description

Technical Field

[0001] The utility model patent relates to the technical field of propeller structures, specifically, to an integrated propeller structure. Background Art

[0002] A propeller structure refers to a structure that converts the engine's rotational power into propulsion by rotating the blades in the air or water. The blades can have two or more blades, and the rear side of the blade is a spiral surface or a propeller that is close to a spiral surface.

[0003] There are many types of propeller structures, which are widely used, such as propellers of airplanes and ships. In the flying toy industry, propeller structures are mostly used as the power structure of aircraft. The propeller structure rotates in the air, and the air generates upward thrust, driving the flying toy to fly in the air.

[0004] In the prior art, the propeller structure includes a shaft sleeve, a blade clamp, blades and a balance rod. The balance rod and the blades are formed by wind bodies respectively. The shaft sleeve is sleeved on the shaft body, the blade clamp is connected to the shaft sleeve, and then the blade clamp is used to clamp the blade, and the balance rod is connected to the shaft sleeve. The whole structure is too complicated, and the assembly is convenient, but the assembly efficiency is low and the cost is also high. Utility Model Content

[0005] The utility model aims to provide an integrated propeller structure, aiming to solve the problem of complex structure of the propeller structure in the prior art.

[0006] The utility model is implemented as follows: an integrated propeller structure includes an upper blade and a lower blade rotating in the opposite direction to the upper blade, the upper blade is located above the lower blade, and the upper blade and the lower blade are respectively integrally formed; the upper blade has upper blades on both sides, and the lower blade has lower blades on both sides, two upper balance rods are provided on the upper blade, and the two upper balance rods are integrally formed with the upper blade.

[0007] Furthermore, the upper balance pole is arranged to be inclined away from the upper blades.

[0008] Furthermore, the middle portion of the upper blade is longitudinally movably connected to the inner shaft body.

[0009] Furthermore, an upper layer connecting portion is provided in the middle of the upper layer blade, an inner end of the upper layer blade is butted against the upper layer connecting portion, and an outer end of the upper layer blade is arranged to extend outward away from the upper layer connecting portion.

[0010] Furthermore, the inner end of the upper balance pole is butted against the upper connection portion, and the outer end of the upper balance pole is arranged to extend outward away from the upper connection portion.

[0011] Furthermore, an inner shaft sleeve is sleeved on the inner shaft body, and the upper connecting part is movably connected to the inner shaft sleeve longitudinally.

[0012] Furthermore, the inner sleeve is provided with a clamping groove with a top opening, and the middle part of the upper connecting part is provided with an upper movable shaft, and the upper movable shaft is movably embedded in the clamping groove through the top opening and is longitudinally movably connected to the inner sleeve.

[0013] Furthermore, the middle portion of the lower blade is fixedly connected to the outer shaft.

[0014] Furthermore, the middle part of the lower layer blade has a lower layer connection part, the inner end of the lower layer blade is butted on the lower layer connection part, and the outer end of the lower layer blade is away from the lower layer connection part and extends outward;

[0015] The lower connecting part is longitudinally movably connected to the outer shaft body, and the lower blade has two lower balance rods. The inner ends of the lower balance rods are butted on the lower connecting part, and the outer ends of the lower balance rods are arranged to extend outward away from the lower connecting part. The two lower balance rods are integrally formed with the lower blade.

[0016] Furthermore, an outer shaft sleeve is sleeved on the outer shaft body, and two grooves are provided on the outer shaft sleeve; the middle part of the lower connecting part has a hollow hole, and the inner side wall of the hollow hole is convexly provided with a protrusion, the outer shaft body moves through the hollow hole, and the two protrusions are respectively and correspondingly embedded in the two grooves.

[0017] Compared with the prior art, the utility model provides an integrated propeller structure in which the upper blades are integrally formed with the two upper balance rods, and the lower blades are integrally formed, forming independent entities respectively. When it is used in a flying toy, it is easy to assemble, has a simple structure, and has a high assembly efficiency, which greatly saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the integrated propeller structure provided by the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the lower blade provided by the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the cooperation between the outer shaft sleeve and the lower connecting part provided by the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the inner shaft sleeve provided by the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Reference Figure 1-4 As shown, it is a preferred embodiment provided by the utility model.

[0026] The integrated propeller structure provided in this embodiment can be used in a flying toy. It rotates at high speed in the air, and the air generates thrust to drive the flying toy to fly in the air.

[0027] The integrated propeller structure includes an upper blade and a lower blade that rotates in the opposite direction to the upper blade. The upper blade is located above the lower blade, and the upper blade and the lower blade are respectively integrally formed. When in use, the upper blade and the lower blade rotate in opposite directions. The integral forming here refers to being manufactured in one piece through a mold, etc., without the need for independent assembly, etc.

[0028] The upper blades are provided with upper blades 101 on both sides, and the lower blades are provided with lower blades 301 on both sides. The upper blades are provided with two upper balance rods 102, and the two upper balance rods 102 are integrally formed with the upper blades.

[0029] The upper balancing rod 102 is a rod-shaped object with a counterweight at the end. When the upper blades rotate, the upper balancing rod 102 rotates in the same direction as the upper blades. It has the characteristics of fixed axis and precession, which are unique to gyroscopes. When the center of rotation moves, the spatial orientation of the rotation axis remains unchanged and the predetermined movement direction of the center of rotation remains unchanged. The upper balancing rod 102 can prevent the flying toy from large displacement, thereby playing a certain role in wind resistance. At the same time, it can also prevent the flying toy from small yaw, so that the flying toy moves in the horizontal direction.

[0030] The integrated propeller structure provided above has upper blades and two upper balance rods 102 integrally formed, and lower blades integrally formed, each forming an independent entity. When it is used in a flying toy, it is easy to assemble, has a simple structure, and has a high assembly efficiency, which greatly saves costs.

[0031] The upper balancing pole 102 is tilted away from the upper blades 101 , and the tilt angle can be determined according to actual conditions, so that the upper balancing pole 102 can achieve a better flight balance adjustment effect.

[0032] In this embodiment, the middle part of the upper blade is movably connected to the inner shaft body longitudinally, and the inner shaft body is driven to rotate by a motor, thereby driving the upper blade to rotate. In order to better adjust the horizontal flight, after the upper blade is connected to the inner shaft body, it can swing at a certain angle in the longitudinal direction, so that the upper blade can automatically adjust its up and down swing according to actual conditions during the rotation process.

[0033] In this embodiment, the middle of the upper blade has an upper connection portion 103, the inner end of the upper blade 101 is butted against the upper connection portion 103, and the outer end of the upper blade 101 extends outward away from the upper connection portion 103. In this way, the two blades are symmetrically arranged with the upper connection portion 103 as the center.

[0034] The inner end of the upper balance pole 102 is butted against the upper connection portion 103 , and the outer end of the upper balance pole 102 extends outward away from the upper connection portion 103 . The two upper balance poles 102 are symmetrically arranged with the upper connection portion 103 as the center.

[0035] In this embodiment, an inner sleeve 201 is sleeved on the inner shaft body, and the upper connecting part 103 is longitudinally movably connected to the inner sleeve 201. By arranging the inner sleeve 201, the longitudinal movable connection between the upper connecting part 103 and the inner shaft body is facilitated, and the disassembly or assembly of the upper blades on the inner shaft body is facilitated.

[0036] The inner sleeve 201 is provided with a clamping groove 2011 with a top opening, and the middle part of the upper connecting part 103 is provided with an upper movable shaft, which is movably embedded in the clamping groove 2011 through the top opening and is movably connected to the inner sleeve 201 in the longitudinal direction. After the upper movable shaft is movably embedded in the clamping groove 2011, the upper blade can swing within a set range in the longitudinal direction relative to the inner shaft body, so that the upper blade can be self-adjusted during the rotation process.

[0037] In this embodiment, the middle part of the lower blade is fixedly connected to the outer shaft body 400, and the outer shaft body 400 directly passes through the middle part of the lower blade and is fixedly connected to the lower blade. The rotation of the outer shaft body 400 drives the lower blade to rotate synchronously.

[0038] Alternatively, as another embodiment, the middle portion of the lower blade has a lower connection portion 303, the inner end of the lower blade 301 is butted against the lower connection portion 303, and the outer end of the lower blade 301 is arranged to extend outward away from the lower connection portion 303;

[0039] The lower connecting portion 303 is longitudinally movably connected to the outer shaft body 400, and the lower blade has two lower balance rods 302. The inner ends of the lower balance rods 302 are butt-jointed to the lower connecting portion 303, and the outer ends of the lower balance rods 302 extend outward away from the lower connecting portion 303. The two lower balance rods 302 are integrally formed with the lower blade.

[0040] The lower connecting portion 303 is longitudinally movably connected to the outer shaft body 400, so that the lower blades can swing in the longitudinal direction within a set range. During the rotation of the lower blades, the rotation plane can be automatically adjusted by swinging, and the configuration of the lower balance rod 302 can perform automatic adjustment of flight balance.

[0041] The function and structure of the lower balance pole 302 are consistent with those of the upper balance pole 102 .

[0042] In this embodiment, an outer shaft sleeve 401 is sleeved on the outer shaft body 400, and two grooves 4011 are provided on the outer shaft sleeve 401; the middle part of the lower connecting part 303 has a hollow hole, and the inner wall of the hollow hole is convexly provided with a protrusion 3031, and the outer shaft body 400 can move through the hollow hole, and the two protrusions 3031 are respectively and correspondingly embedded in the two grooves 4011.

[0043] By arranging the hollow holes, the outer shaft body 400 can pass through the lower connecting portion 303 , and the protrusion 3031 is movably embedded in the groove 4011 . The protrusion 3031 can move in the groove 4011 , thereby realizing the longitudinal movable connection between the lower blade and the outer shaft body 400 .

[0044] In this embodiment, the outer shaft body 400 is movably sleeved on the outside of the inner shaft body, the inner shaft body movably passes through the inside of the outer shaft body 400, and the inner shaft body and the outer shaft body 400 are coaxially arranged. The rotating shaft of the motor can synchronously drive the inner shaft body and the outer shaft body 400 to rotate through the gear structure, and the rotation direction of the inner shaft body is opposite to the rotation direction of the outer shaft body 400, so that the flying toy can fly in the air.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated propeller structure, characterized in that: It includes an upper blade and a lower blade rotating in the opposite direction to the upper blade, the upper blade is located above the lower blade, and the upper blade and the lower blade are respectively integrally formed; the upper blade has upper blades on both sides, and the lower blade has lower blades on both sides, and two upper balance rods are arranged on the upper blade, and the two upper balance rods are integrally formed with the upper blade.

2. The integrated propeller structure according to claim 1, characterized in that: The upper balance pole is arranged to be inclined away from the upper blades.

3. The integrated propeller structure according to claim 1, characterized in that: The middle part of the upper blade is longitudinally movably connected to the inner shaft body.

4. The integrated propeller structure according to claim 3, characterized in that: An upper layer connecting portion is provided in the middle of the upper layer blade, the inner end of the upper layer blade is butted against the upper layer connecting portion, and the outer end of the upper layer blade is arranged to extend outward away from the upper layer connecting portion.

5. The integrated propeller structure according to claim 4, characterized in that: The inner end of the upper balance pole is butted against the upper connection portion, and the outer end of the upper balance pole is arranged to extend outward away from the upper connection portion.

6. The integrated propeller structure according to claim 4, characterized in that: An inner shaft sleeve is sleeved on the inner shaft body, and the upper connecting part is longitudinally movably connected with the inner shaft sleeve.

7. The integrated propeller structure according to claim 6, characterized in that: The inner sleeve is provided with a clamping groove with a top opening, and the middle part of the upper connecting part is provided with an upper movable shaft, and the upper movable shaft is movably embedded in the clamping groove through the top opening and is longitudinally movably connected with the inner sleeve.

8. The integrated propeller structure according to any one of claims 1 to 7, characterized in that: The middle part of the lower blade is fixedly connected to the outer shaft body.

9. The integrated propeller structure according to any one of claims 1 to 7, characterized in that: The middle part of the lower layer blade has a lower layer connection part, the inner end of the lower layer blade is butted against the lower layer connection part, and the outer end of the lower layer blade is away from the lower layer connection part and extends outward; The lower connecting part is longitudinally movably connected to the outer shaft body, and the lower blade has two lower balance rods. The inner ends of the lower balance rods are butted on the lower connecting part, and the outer ends of the lower balance rods are arranged to extend outward away from the lower connecting part. The two lower balance rods are integrally formed with the lower blade.

10. The integrated propeller structure according to claim 9, characterized in that: An outer shaft sleeve is sleeved on the outer shaft body, and two grooves are provided on the outer shaft sleeve; the middle part of the lower connecting part has a hollow hole, and the inner side wall of the hollow hole is convexly provided with a protrusion, the outer shaft body moves through the hollow hole, and the two protrusions are respectively and correspondingly embedded in the two grooves.

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